JP7412921B2 - railway vehicle - Google Patents

Description

The present invention relates to a railway vehicle, and particularly to a railway vehicle that can improve the degree of freedom in designing a ceiling structure.

Railway vehicles are known in which a duct is provided on the ceiling side of the passenger compartment. For example, Patent Document 1 describes a technique in which the lower surface of a duct can be opened and closed using an inspection lid. According to this technique, by opening the inspection lid, maintenance (inspection and cleaning) inside the duct can be performed from the passenger cabin side.

JP 2005-138638 A (for example, paragraphs 0020 to 0023, Figures 1 and 2)

However, in the above-mentioned conventional technology, the air outlet for blowing out the conditioned air to the cabin side and the panel opening (opening in the lower panel) for performing maintenance inside the duct are provided separately. Increased space for locating exits and panel openings. Therefore, there is a problem in that the degree of freedom in designing the ceiling structure is reduced because restrictions are placed on the placement positions of other members.

The present invention was made in order to solve the above-mentioned problems, and an object of the present invention is to provide a railway vehicle that can improve the degree of freedom in designing a ceiling structure.

In order to achieve this object, the railway vehicle of the present invention includes a duct having a duct opening formed on the lower surface and extending in the longitudinal direction of the vehicle on the ceiling side of the passenger compartment, and a duct located opposite to the duct opening. A panel having a panel opening formed in the duct and covering the lower surface side of the duct, and an inspection lid for opening and closing the panel opening, and a space between the lower surface of the duct and the inspection lid. a cushioning material disposed and having a predetermined flexibility; a baffle plate for sending out the conditioned air passing through the inside of the duct toward the duct opening side; and a fastening means for fastening and fixing the baffle plate to the lower surface of the duct. , a heat insulating material surrounding the fastening means on the lower surface side of the duct, the inspection lid having an air outlet formed at a position opposite to the duct opening , and the buffer material including the They are arranged in a pair across a space between the duct opening and the air outlet, and the buffering material is brought into close contact with the lower surface of the heat insulating material, so that the fastening means is surrounded by the heat insulating material and the buffering material. It will be done .
The railway vehicle of the present invention includes a duct having a duct opening formed on the lower surface and extending in the longitudinal direction of the vehicle on the ceiling side of a passenger compartment, and a panel opening formed at a position opposite to the duct opening. and an inspection lid that opens and closes the panel opening, and the inspection lid has an opening formed at a position opposite to the duct opening. The panel is provided below the one end side of the inspection lid, and includes an outlet and a clamped part having a partially thinner plate on one end side of the inspection lid, and the panel is disposed below the one end side of the inspection lid so that the clamped part extends downwardly. A lower regulation piece that regulates displacement; and an upper regulation piece that is disposed above the lower regulation piece at a predetermined interval and protrudes toward the panel opening side, and the upper regulation piece is configured to The upper regulating piece is formed to protrude toward the panel opening side than the regulating piece, and a protrusion that protrudes downward is formed at the tip of the upper regulating piece, and an interval in the vertical direction between the lower regulating piece and the protruding part is as follows: The dimensions are set to be the same as the plate thickness of the clamped portion, and the protrusion comes into contact with the upper surface of the inspection lid in a closed state in which the inspection lid closes the panel opening.
The railway vehicle of the present invention includes a duct having a duct opening formed on the lower surface and extending in the longitudinal direction of the vehicle on the ceiling side of a passenger compartment, and a panel opening formed at a position opposite to the duct opening. and an inspection lid that opens and closes the panel opening, and the inspection lid has an opening formed at a position opposite to the duct opening. an outlet, and a plate spring attached to the upper surface of one end of the inspection lid to bias the one end of the inspection lid upward, and the panel is disposed below the one end of the inspection lid to prevent the inspection from occurring. a lower regulating piece for regulating downward displacement of the lid; and an upper regulating piece disposed above the lower regulating piece at a predetermined interval and protruding toward the panel opening side; The pieces are formed in pairs separated by a predetermined interval in the longitudinal direction of the vehicle, and a plurality of sets of the upper regulating pieces are arranged in the longitudinal direction of the vehicle, and in each of the plurality of pairs of upper regulating pieces, the upper regulating pieces are arranged in pairs in the longitudinal direction of the vehicle. The leaf spring is provided at a position where it can be inserted between the opposing upper regulating pieces.

According to the railway vehicle according to claims 1 to 3 , the inspection lid is provided with an air outlet formed at a position opposite to the duct opening, so that the conditioned air sent from the inside of the duct to the duct opening can be inspected. The air is blown out towards the passenger compartment through the air outlet in the lid. That is, by forming the air outlet in the inspection lid that covers the panel opening, the panel opening and the air outlet can be arranged in an overlapping position, so that the space for arranging the panel opening and the air outlet can be reduced. Therefore, since it is possible to suppress the occurrence of restrictions on the arrangement positions of other members, there is an effect that the degree of freedom in designing the ceiling structure can be improved.
Further, according to the railway vehicle according to claim 1, since the cushioning material having a predetermined flexibility is provided between the lower surface of the duct and the inspection lid, the vibration between the duct and the inspection lid when the vehicle is running is provided. Contact can be softened by cushioning material. Since the cushioning materials are arranged as a pair with the space between the duct opening and the air outlet interposed therebetween, the airtightness between the duct opening and the air outlet can be improved by the cushioning materials. That is, there is an effect that the cushioning material can serve both of the function of alleviating contact between the duct and the inspection lid and the function of ensuring airtightness between the duct opening and the air outlet.
Furthermore, according to the railway vehicle according to the first aspect, the following effects are achieved. A baffle plate that directs the conditioned air passing through the inside of the duct toward the duct opening side, a fastening means for fastening and fixing the baffle plate to the lower surface of the duct, and a heat insulating material surrounding the fastening means on the lower surface side of the duct. The fastening means is surrounded by the heat insulating material and the shock absorbing material by bringing the buffer material into close contact with the lower surface of the heat insulating material. Thereby, the heat insulating material and the cushioning material can prevent the conditioned air sent to the duct opening side by the air baffle plate from being blown onto the fastening means. Therefore, since the fastening means can be insulated against the air-conditioned wind, there is an effect that dew condensation can be suppressed from forming on the fastening means.
According to the railway vehicle according to the second aspect, the following effects are achieved. The inspection lid includes a clamped part with a partially thinner plate on one end thereof, and the panel includes a lower regulating piece disposed below one end of the inspection lid to restrict downward displacement of the clamped part. and an upper regulating piece that is disposed above the lower regulating piece at a predetermined interval and projects toward the panel opening side.
The upper regulation piece is formed to protrude further toward the panel opening side than the lower regulation piece, and a protrusion that protrudes downward is formed at the tip of the upper regulation piece. The vertical distance between the lower regulation piece and the protrusion is set to the same dimension as the plate thickness of the clamped part, and the protrusion comes into contact with the top surface of the inspection cover in the closed state where the inspection cover closes the panel opening. . This prevents the inspection lid from wobbling between the opposing lower and upper regulating pieces even if the clamped part is slidable (unfixed) relative to the lower and upper regulating pieces. There is an effect that it can be done.
According to the railway vehicle according to the third aspect, the following effects are achieved. The inspection lid includes a leaf spring that is attached to the upper surface of one end of the inspection lid and urges the one end of the inspection lid upward, and the panel is arranged below the one end of the inspection lid to restrict downward displacement of the inspection lid. A lower regulating piece is provided, and an upper regulating piece is disposed above the lower regulating piece at a predetermined interval and protrudes toward the panel opening side. The upper regulation pieces are formed in a pair at a predetermined interval in the vehicle longitudinal direction, and a plurality of pairs of the upper regulation pieces are arranged in the vehicle longitudinal direction, and in each of the plurality of pairs of upper regulation pieces, one pair is arranged. A leaf spring is provided at a position where it can be inserted between the opposing upper regulating pieces.
As a result, by inserting one end of the inspection lid between the opposing lower and upper regulating pieces while passing the leaf spring between the pair of opposing upper regulating pieces, the installation position of the inspection cover relative to the panel can be roughly determined. can. Therefore, there is an effect that the workability of installing the inspection lid can be improved. Furthermore, there is an effect that the leaf spring can have both the function of performing such positioning and the function of suppressing the rattling of the inspection lid between the opposing lower and upper regulating pieces. .

According to the railway vehicle according to claim 4 , in addition to the effects provided by the railway vehicle according to claim 2 or 3 , the following effects are achieved. Since the cushioning material having a predetermined flexibility is provided between the lower surface of the duct and the inspection lid, the cushioning material can alleviate contact between the duct and the inspection lid due to vibrations when the vehicle is running. Since the cushioning materials are arranged as a pair with the space between the duct opening and the air outlet interposed therebetween, the airtightness between the duct opening and the air outlet can be improved by the cushioning materials. That is, there is an effect that the cushioning material can serve both of the function of alleviating contact between the duct and the inspection lid and the function of ensuring airtightness between the duct opening and the air outlet.

According to the railway vehicle according to claim 5 , in addition to the effects provided by the railway vehicle according to claim 4 , the following effects are achieved. A baffle plate that directs the conditioned air passing through the inside of the duct toward the duct opening side, a fastening means for fastening and fixing the baffle plate to the lower surface of the duct, and a heat insulating material surrounding the fastening means on the lower surface side of the duct. The fastening means is surrounded by the heat insulating material and the shock absorbing material by bringing the buffer material into close contact with the lower surface of the heat insulating material. Thereby, the heat insulating material and the cushioning material can prevent the conditioned air sent to the duct opening side by the air baffle plate from being blown onto the fastening means. Therefore, since the fastening means can be insulated against the air-conditioned wind, there is an effect that dew condensation can be suppressed from forming on the fastening means.

According to the railway vehicle according to claim 6 , in addition to the effects provided by the railway vehicle according to claim 1 , the following effects are achieved. The panel includes a lower regulating piece that is disposed below one end of the inspection lid and restricts the downward displacement of the inspection lid, and the one end of the inspection lid is slidable relative to the lower regulating piece, and the other end of the inspection lid The end side is removably fixed to the panel. This releases the fixed state between the panel and the other end of the inspection cover, and the inspection cover can be easily removed from the panel by sliding one end of the inspection cover on the top side of the lower regulation piece and pulling it out (panel opening can be opened).

When attaching the inspection cover to the panel (closing the panel opening), slide one end of the inspection cover from the panel opening toward the top of the lower regulation piece, and then Just fix the sides to the panel. In other words, when attaching and detaching the inspection cover to and from the panel, it is no longer necessary to fix one end of the inspection cover to the panel (lower regulation piece) and to release the fixation, making it easier to attach and detach the inspection cover to and from the panel. This has the effect of improving workability.

According to the railway vehicle according to claim 7 , in addition to the effects provided by the railway vehicle according to claim 6 , the following effects are achieved. The panel includes an upper regulating piece that is arranged above the lower regulating piece at a predetermined interval and protrudes toward the panel opening side, and one end of the inspection lid is located between the lower regulating piece and the upper regulating piece. Since the inspection lid is inserted, in the closed state where the inspection lid closes the panel opening, vertical displacement of one end side of the inspection lid can be restricted by the lower regulation piece and the upper regulation piece. Therefore, even if one end of the inspection lid is slidable (non-fixed) relative to the lower regulation piece, it is possible to suppress rattling of the inspection lid between the opposing lower regulation piece and the upper regulation piece. be.

On the other hand, when attaching the inspection cover to the panel, it is necessary to insert one end of the inspection cover between the lower regulation piece and the upper regulation piece, but the upper regulation piece is placed closer to the panel opening than the lower regulation piece. Since the inspection cover is formed to protrude, the inspection cover can be easily inserted between the lower regulation piece and the upper regulation piece by sliding one end side of the inspection cover along the lower surface of the upper regulation piece. Therefore, there is an effect that the workability of attaching the inspection lid can be improved.

According to the railway vehicle according to claim 8 , in addition to the effects provided by the railway vehicle according to claim 7 , the following effects are achieved. A plurality of upper regulation pieces are arranged at predetermined intervals on the edge of the panel along the panel opening, and the inspection lid protrudes from the edge on one end side of the inspection cover and is inserted between the upper regulation pieces. An insertion section is provided. As a result, by inserting one end of the inspection cover between the lower regulation piece and the upper regulation piece while passing the insertion part between the upper regulation pieces, the installation position of the inspection cover with respect to the panel (relative position in the front and back direction) can be adjusted. ) can be roughly positioned. Therefore, there is an effect that the workability of attaching the inspection lid can be improved.

According to the railway vehicle according to claim 9 , in addition to the effects provided by the railway vehicle according to claim 7 or 8 , the following effects are achieved. Since the inspection lid is provided with a biasing means for biasing the inspection lid upward or downward, one end side of the inspection lid can be pressed against the lower regulation piece or the upper regulation side by the biasing force of the biasing means. This has the effect of suppressing rattling of the inspection lid between the opposing lower and upper regulating pieces.

According to the railway vehicle according to claim 10 , in addition to the effects provided by the railway vehicle according to any one of claims 1 to 9 , the following effects are achieved. Since the opening size of the panel opening is made larger than the opening size of the duct opening, it is possible to easily access the inside of the duct through the panel opening. Therefore, there is an effect that the workability of maintenance inside the duct can be improved.

According to the railway vehicle according to claim 11 , in addition to the effects provided by the railway vehicle according to claim 10 , the following effects are achieved. The duct is arranged laterally than the center of the ceiling in the left-right direction of the vehicle, and the end of the panel opening on the center side of the vehicle in the left-right direction is located closer to the center of the ceiling in the left-right direction of the vehicle than the duct opening. When performing maintenance inside the duct from the center side in the left-right direction of the vehicle in the passenger compartment, the inside of the duct can be easily accessed through the panel opening. Therefore, there is an effect that the workability of maintenance inside the duct can be improved.

According to the railway vehicle according to claims 1 to 2 , in addition to the effects provided by the railway vehicle according to any one of claims 1 to 11 , the following effects are achieved. Since the air outlet member is fixed to the lower surface of the inspection lid and has an opening formed at a position opposite to the air outlet, the conditioned air passing through the duct is directed through the air outlet of the inspection lid and the opening of the air outlet member. It is blown out to the guest room side through the. Thereby, the volume and position of the air conditioned air blown toward the passenger compartment can be adjusted by the opening of the air outlet member.

When a plurality of inspection lids are arranged at predetermined intervals in the longitudinal direction of the vehicle, the design of the ceiling surface tends to deteriorate due to the intermittent arrangement of the inspection lids. On the other hand, according to claims 1 and 2 , the size of the air outlet member in the longitudinal direction of the vehicle is larger than the size of the inspection lid, and the air outlet member extends along the longitudinal direction of the vehicle over the area where the plurality of inspection lids are disposed. It will be arranged as follows. This allows the air outlet member to enhance the sense of unity between the plurality of inspection lids, and also allows the air outlet member to form a single line along the longitudinal direction of the vehicle. Therefore, even when a plurality of inspection covers are disposed intermittently on the ceiling surface, there is an effect that the design of the ceiling surface can be improved.

(a) is a side view of a railway vehicle in one embodiment of the present invention, and (b) is a partially enlarged sectional view of the railway vehicle taken along line Ib-Ib in FIG. 1(a). FIG. 2 is a partially enlarged cross-sectional view of the railway vehicle in which part II of FIG. 1(b) is enlarged. FIG. 3 is a partially enlarged sectional view of the railway vehicle taken along line III-III in FIG. 2; (a) is a partially enlarged sectional view of the railway vehicle in which the IVa portion in FIG. 2 is enlarged, and (b) is a partially enlarged top view of the side ceiling panel and the inspection lid as viewed in the direction of arrow IVb in FIG. 4(a). It is. (a) is a partially enlarged cross-sectional view of the railway vehicle showing a state in which the inspection lid is removed from the state shown in FIG. FIG. 2 is a partially enlarged sectional view of the railway vehicle shown in FIG. FIG. 3 is a partially enlarged bottom view of the ceiling of the railway vehicle as viewed in the direction of arrow VI in FIG. 2;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, with reference to FIG. 1, the overall configuration of the railway vehicle 1 will be described. FIG. 1(a) is a side view of a railway vehicle 1 according to an embodiment of the present invention, and FIG. 1(b) is a partially enlarged sectional view of the railway vehicle 1 taken along line Ib-Ib in FIG. 1(a). be. In addition, in FIG. 1(b), in order to simplify the drawing, some parts of the railway vehicle 1 (for example, the mounting structure of the cargo rack 8 and the hanging rod receiver 9, etc.) are omitted, and the illustration of the railway vehicle 1 is omitted. The structure is schematically illustrated.

As shown in FIG. 1, the railway vehicle 1 includes a bogie 2 (see FIG. 1(a)) having a plurality of wheels 20, a body structure 3 supported by the bogie 2, and an inner surface of the body structure 3 facing the cabin R. A panel 4 (see FIG. 1(b)), a duct 5 provided between the panel 4 and the structure 3, a baffle plate 6 for controlling the flow of conditioned air passing through the duct 5, and a baffle plate 6 for controlling the flow of air conditioned air passing through the duct 5. The inspection lid 7 has an air outlet 70 for blowing out the conditioned air controlled by the air conditioner 6 to the passenger compartment R side.

The structure 3 includes a pair of side structures 30 disposed at both ends of the vehicle in the left-right direction (left-right direction in FIG. 1(b)), and an upper end of the pair of side structures 30 (an upper end in FIG. 1(b)). ) a roof structure 31 that connects the two. By covering the inner surfaces of the side structures 30 and the roof structure 31 with the plate-like panels 4, a space of a passenger room R surrounded by the panels 4 is formed. That is, the panel 4 constitutes the wall surface and ceiling surface of the guest room R.

The panel 4 includes a pair of left and right side panels (not shown) that cover the inner surface of the side structure 30, a pair of left and right side ceiling panels 4a connected to the upper ends of the pair of side panels, and a pair of side ceiling panels 4a that are connected to the upper ends of the pair of side panels. A ceiling panel 4b disposed between the panels 4a.

The side ceiling panel 4a is formed to extend upward from the upper end of the side panel (not shown) and curve toward the center in the left-right direction of the vehicle (the right side in FIG. 1(b)). The lower end of the side ceiling panel 4a is connected to the side structure 30 via a metal fitting M1, and the upper end (end on the vehicle center side in the left-right direction) of the side ceiling panel 4a is connected to the roof structure 31 via a metal fitting M2. As a result, the inner surface on the upper end side of the side structure 30 and the inner surface on both left and right end sides of the roof structure 31 (left side in FIG. 1(b)) are covered by the side ceiling panel 4a.

Both left and right ends of the ceiling panel 4b are connected to the roof structure 31 via metal fittings M2, and the inner surface of the roof structure 31 on the left-right center side is covered by the ceiling panel 4b.

The side ceiling panel 4a is provided with a predetermined interval between the side structure 30 and the roof structure 31, and the duct 5 is arranged in the space between the lower surface of the roof structure 31 and the upper surface of the side ceiling panel 4a. be done. The duct 5 is a wind duct for supplying conditioned air sent out from an air conditioner (not shown) to each part of the cabin R extending back and forth. The flow of conditioned air passing through the duct 5 is rectified by the baffle plate 6, and is blown out to the cabin R side through the air outlet 70 of the inspection lid 7.

The inspection lid 7 is detachably provided in a panel opening 40 (see FIG. 2 or 5) of the side ceiling panel 4a, and by removing the inspection lid 7 from the side ceiling panel 4a, the duct can be opened through the panel opening 40. 5 and the air conditioning plate 6 can be maintained (inspected and cleaned).

A cargo shelf 8 is provided below the inspection lid 7, and a hanger rod holder 9 is provided closer to the center than the inspection lid 7 in the left-right direction of the vehicle. The luggage rack 8 is connected to the side structure 30 via metal fittings (not shown), and is provided so as to protrude from the lower end portion of the side ceiling panel 4a toward the passenger compartment R side.

The hanging rod support 9 is connected to the roof structure 31 via a metal fitting M2, and is provided so as to protrude toward the guest room R from between the side ceiling panel 4a and the ceiling panel 4b. The hanger rod receiver 9 protrudes from the metal fitting M2 in a curved manner toward the center in the left-right direction of the vehicle, and a hanger rod 90 extending in the front-rear direction is fixed to the protruding tip of the hanger rod receiver 9. Although not shown, a plurality of straps are suspended from the hanging bar 90.

Next, the detailed configuration of the ceiling structure of the railway vehicle 1 will be described with reference to FIGS. 2 and 3. 2 is a partially enlarged cross-sectional view of the railway vehicle 1 taken along the line III-III of FIG. 2. FIG. In addition, in FIG. 3, in order to facilitate understanding, dot-shaped hatching is attached to the side surface of the heat insulating material 63 excluding the region where the through hole 63a is formed, and the side surface of the cushioning material 71.

As shown in FIGS. 2 and 3, the duct 5 is formed into a rectangular tube shape and extends in the front-rear direction (left-right direction in FIG. 3). A duct opening 50 is formed on the lower surface of the duct 5 to blow out the conditioned air toward the passenger compartment R side.

The duct opening 50 is a rectangular opening that is long in the front-rear direction, and a plurality of air conditioning plates 6 are fixed to the duct opening 50 (see FIG. 3). Although not shown in the drawings, the duct 5 has a plurality of duct openings 50 arranged in the front-rear direction.

The air regulating plate 6 includes a main body part 60 fixed to the lower surface of the duct 5 and an air regulating part 61 connected to the main body part 60. The main body 60 is formed into a rectangular plate shape that is long from side to side, and both left and right ends of the main body 60 are fastened to the duct 5 by bolts B1 on both left and right sides of the duct opening 50 (near the duct opening 50). Fixed. That is, the main body portion 60 is provided so as to span the duct opening 50 .

The air regulating section 61 is formed by making a U-shaped cut in the plate-shaped main body section 60 and bending it. Therefore, the air regulating section 61 is inclined upward from the main body 60 toward the rear side of the vehicle (left side in FIG. 3), and a rectangular through hole 62 is formed in the main body 60 on the lower side of the air regulating section 61. be done. A plurality of these air regulating portions 61 and through holes 62 are arranged (intermittently) in the front-rear direction.

The conditioned air rectified by the air conditioning unit 61 is sent downward through the duct opening 50 and the through hole 62 of the air conditioning plate 6 . A panel opening 40 (see FIG. 2) of the side ceiling panel 4a is formed at a position (below the duct opening 50) that vertically faces the duct opening 50 (the through hole 62 of the air regulating plate 6). The panel opening 40 is a rectangular opening that is long from front to back, and the inspection lid 7 is provided in the panel opening 40 so that it can be opened and closed (see FIG. 5 for the state in which the panel opening 40 is opened).

An air outlet 70 is formed in the center of the inspection lid 7 in the left-right direction (left-right direction in FIG. 2), and a plurality of air outlets 70 are arranged in front and back in one inspection lid 7 (see FIG. 3). The plurality of air outlets 70 are provided at positions vertically facing the duct opening 50 (air regulating plate 6), and the conditioned air sent downward from the air regulating plate 6 through the duct opening 50 is transmitted through the inspection lid 7. It passes through the air outlet 70 and is blown out to the passenger room R side through an opening 100 of an air outlet member 10, which will be described later.

In this manner, by forming the air outlet 70 in the inspection lid 7 that opens and closes the panel opening 40 of the side ceiling panel 4a, the panel opening 40 and the air outlet 70 can be arranged in an overlapping position. Thereby, the space for arranging the panel opening 40 and the air outlet 70 can be reduced, so it is possible to suppress restrictions on the arrangement positions of other members. Therefore, the degree of freedom in designing the ceiling structure of the railway vehicle 1 can be improved.

Furthermore, by arranging the side ceiling panel 4a and the inspection lid 7 below the duct 5 at a predetermined interval (for example, 20 to 30 mm), the side ceiling panel 4a and the inspection lid 7 can be placed close to the duct 5, for example. Compared to the case where the vehicle is disposed in the same manner as shown in FIG. Therefore, generation of abnormal noise due to such contact can be suppressed.

The air conditioning plate 6 is fastened and fixed to the lower surface of the duct 5 by bolts B1, but in order to prevent the conditioned air sent downward from the air conditioning plate 6 from being blown onto the head of the bolt B1, the head of the bolt B1 is is surrounded by a heat insulating material 63. The heat insulating material 63 is bonded over almost the entire lower surface of the main body 60 of the air baffle plate 6, but in FIGS. Only the following are shown. A through hole 63a is formed in the heat insulating material 63 in correspondence with the installation position of the bolt B1, and with the head of the bolt B1 accommodated in the through hole 63a, an inspection cover is placed on the bottom surface of the insulating material 63. The cushioning material 71 of No. 7 is tightly attached.

The buffer material 71 is adhered to the upper surface of the inspection lid 7, and by interposing the buffer material 71 between the heat insulating material 63 (the lower surface of the duct 5) and the inspection lid 7, the upward movement of the inspection lid 7 is prevented. Displacement is regulated by a buffer material 71. Since the cushioning material 71 is formed using a material having a predetermined flexibility (an elastic material such as sponge, rubber, or thermoplastic elastomer), the cushioning material prevents contact between the duct 5 and the inspection lid 7 due to vibrations during driving. 71 can be alleviated.

The cushioning materials 71 are provided in a pair on the left and right (near the air outlet 70) across the air outlet 70 of the inspection lid 7, and the pair of cushioning materials 71 are provided in positions vertically overlapping with the pair of left and right heat insulating materials 63. It will be done. That is, since the heat insulating material 63 and the buffer material 71 are provided in a pair on the left and right with the space between the duct opening 50 and the air outlet 70 in between, the airtight state between the duct opening 50 and the air outlet 70 is maintained. can be increased by the heat insulating material 63 and the buffer material 71.

Therefore, even when the duct 5 and the inspection lid 7 (side ceiling panel 4a) are arranged vertically with a predetermined distance apart, the conditioned air can be efficiently directed from the duct opening 50 to the air outlet 70 of the inspection lid 7. can be sent out. Thereby, the cushioning material 71 can serve both of the function of alleviating contact between the duct 5 and the inspection lid 7 and the function of ensuring airtightness between the duct opening 50 and the air outlet 70. Therefore, the number of parts can be reduced compared to the case where members having such functions are provided separately.

Furthermore, since the buffer material 71 is in close contact with the entire lower surface of the heat insulating material 63, the head of the bolt B1 accommodated in the through hole 63a of the heat insulating material 63 can be surrounded by the heat insulating material 63 and the buffer material 71. . Thereby, the heat insulating material 63 and the cushioning material 71 can prevent the conditioned air sent downward from the duct opening 50 from being blown onto the head of the bolt B1. Therefore, it is possible to insulate the head of the bolt B1 from the air-conditioned wind and suppress the formation of dew condensation on the head of the bolt B1. Therefore, it is possible to prevent moisture generated by such condensation from dripping into the cabin R side (staining the seats and passengers' clothes).

In addition, the cushioning material 71 is formed using a softer material than the heat insulating material 63, and the lower end of the insulating material 63 protrudes below the head (lower end) of the bolt B1 (more insulated than the head of the bolt B1). (the thickness of the material 63 is increased), the cushioning material 71 is easily deformed so as to bite into the through hole 63a of the heat insulating material 63. Therefore, the airtightness due to the close contact between the heat insulating material 63 and the buffer material 71 can be improved, so that the head of the bolt B1 can be more effectively insulated against the air conditioning wind.

Since the heat insulating material 63 and the buffer material 71 each extend in the front-rear direction (the left-right direction in FIG. 3), it is possible to improve the airtightness between the duct opening 50 and the air outlet 70 over the extended area. can. However, due to poor adhesion between the insulation material 63 and the cushioning material 71, the conditioned air may leak slightly through the gap between the insulation material 63 and the cushioning material 71. This is prevented by the cushioning material 41 (see FIG. 2) and the fixing part 42 of the side ceiling panel 4a.

The cushioning material 41 is formed using a material having a predetermined flexibility (an elastic material such as sponge, rubber, or thermoplastic elastomer), and extends in the front-rear direction. The cushioning material 41 is in closer contact with the lower surface of the duct 5 and the upper surface of the side ceiling panel 4a at both left and right ends of the vehicle (on the left side in FIG. 2) than the inspection lid 7 is.

As a result, even if poor adhesion occurs between the heat insulating material 63 and the buffer material 71, the buffer material 41 prevents the air-conditioned air from flowing toward the side structure 30 (see FIG. 1), preventing dew condensation from forming on the side structure 30. This can be prevented from occurring. Therefore, it is possible to prevent the moisture generated by the condensation from dripping onto various wirings (those disposed between the side structure 30 and the panel 4) and causing electrical leakage or the like.

Further, the fixing portion 42 is a portion that projects upward from the end of the side ceiling panel 4a on the left-right center side of the vehicle (right side in FIG. 2) than the inspection lid 7, and is connected to the metal fitting M2. This fixing portion 42 also suppresses airtight leakage of the conditioned air.

Next, a structure for attaching the inspection lid 7 to the side ceiling panel 4a will be described with reference to FIGS. 2 and 4. FIG. 4(a) is a partially enlarged cross-sectional view of the railway vehicle 1 in which the IVa portion of FIG. FIG. 7 is a partially enlarged top view of the lid 7. FIG. In the following description, the state in which the panel opening 40 is closed by the inspection lid 7 will be defined as a "closed state." In addition, the end of the inspection lid 7 on the center side in the left-right direction of the vehicle (the right end in FIG. The end (the left end in FIG. 2) will be defined as "the other end of the inspection lid 7" for explanation.

As shown in FIGS. 2 and 4, the side ceiling panel 4a includes a lower regulating piece 43 and an upper regulating piece 44 that regulate vertical displacement of one end of the inspection lid 7 in the closed state. A clamped part 72 whose plate thickness is partially reduced is formed on one end side of the inspection lid 7, and the clamped part 72 is sandwiched between the lower regulation piece 43 and the upper regulation piece 44. That is, the held part 72 is inserted into a space having a U-shaped cross section formed by the lower regulation piece 43 and the upper regulation piece 44 (the held part 72 is not fixed to the lower regulation piece 43 and the upper regulation piece 44). Therefore, the clamped portion 72 of the inspection lid 7 can slide left and right between the opposing lower regulating piece 43 and upper regulating piece 44.

The upper regulation piece 44 is formed to protrude further toward the panel opening 40 side (the other end side of the inspection lid 7) than the lower regulation piece 43, and a protrusion 44a that protrudes downward is formed at the tip of the upper regulation piece 44. be done. The protruding portion 44a is in contact with the upper surface of the one end side of the inspection lid 7 in the closed state, and the portion of the upper regulation piece 44 on the proximal end side than the protruding portion 44a is in contact with the upper surface of the one end side of the inspection lid 7 in the closed state. It is arranged above (the held part 72) at a predetermined interval (for example, 1 to 3 mm).

The lower regulating pieces 43 are formed continuously in the front and rear over the formation area of the panel opening 40, while the upper regulating pieces 44 are provided in a pair at a predetermined interval in the front and rear (see FIG. 4(b)). . A leaf spring 73 is fixed to the upper surface of one end of the inspection lid 7, and the leaf spring 73 is inserted between the opposing upper regulating pieces 44 (see FIG. 4(b)).

Although illustration is omitted, when a pair of upper regulation pieces 44 is considered as one set, a plurality of sets of upper regulation pieces 44 are arranged in front and back, and a leaf spring is inserted into each of the plurality of sets of upper regulation pieces 44. 73 is provided.

The leaf spring 73 includes a linear flat part 73a extending left and right, a first curved part 73b connected to one end of the flat part 73a (the right end in FIG. 4(a)), and a first curved part 73b. A second curved portion 73c connected to one end of the second curved portion 73b, and each portion is a flat thin plate spring formed into a flat plate shape. The first curved portion 73b is formed in an upwardly convex curved shape, and the second curved portion 73c is formed in a downwardly convex curved shape so as to be continuous with the curved shape of the first curved portion 73b. That is, the tip side of the leaf spring 73 is formed into an S-shape by the first curved portion 73b and the second curved portion 73c.

The flat part 73a (base end of the leaf spring 73) of the leaf spring 73 is fixed to the upper surface of the inspection lid 7 by the bolt B2 (see FIG. 4(b)), and the lower surface of the second curved part 73c is in the closed state. 4a (on the proximal end side of the upper regulating piece 44).

By pressing the lower surface of the second curved portion 73c of the leaf spring 73 against the upper surface of the side ceiling panel 4a, the clamped portion 72 of the inspection lid 7 is lifted toward the upper regulating piece 44 (the inspection lid is lifted using the protrusion 44a as a fulcrum). A biasing force (which rotates one end side of 7) is applied. This biasing force can suppress rattling of the inspection lid 7 between the opposing lower regulation piece 43 and upper regulation piece 44 (protrusion 44a).

The clamped portion 72 of the inspection lid 7 is configured to be removably inserted between the opposing lower regulation piece 43 and the upper regulation piece 44, while the other end of the inspection lid 7 is detachably fixed to the side ceiling panel 4a. (See Figure 2). Specifically, a metal fitting M3 protruding toward the panel opening 40 is fixed to the upper surface of the edge of the side ceiling panel 4a on the other end side of the inspection lid 7 (the edge along the panel opening 40). .

By inserting one end of the inspection lid 7 between the opposing lower regulation piece 43 and upper regulation piece 44 (projection 44a), fix the other end of the inspection lid 7 to the lower surface of the metal fitting M3 with the bolt B3. , the panel opening 40 is closed by the inspection lid 7. The inspection lid 7 is fixed with a plurality of bolts B3 at the front and rear (see FIG. 6), and the poster rail 45 is fixed to the lower surface of the side ceiling panel 4a so as to cover each of the bolts B3 from below. Ru.

Next, a method for attaching and detaching the inspection lid 7 to and from the side ceiling panel 4a will be described with reference to FIGS. 2 and 5. 5(a) is a partially enlarged sectional view of the railway vehicle 1 showing a state in which the inspection lid 7 is removed from the state shown in FIG. 2, and FIG. FIG. 2 is a partially enlarged cross-sectional view of the railway vehicle 1 showing a state in which the air baffle plate 6 is removed.

As shown in FIGS. 2 and 5, when removing the inspection lid 7 from the side ceiling panel 4a, first remove the poster rail 45 that covers the other end of the inspection lid 7 (the left end in FIG. 2). The fastened state between the bolt B3 and the metal fitting M3 is released. As a result, the other end of the inspection lid 7 is released from being fixed to the side ceiling panel 4a (see FIG. 5(a)).

Since the vertical spacing between the lower regulating piece 43 and the upper regulating piece 44 (the part on the proximal end side of the protrusion 44a) is larger than the thickness of the clamped part 72 of the inspection lid 7, the inspection lid When the other end of the inspection lid 7 is released from the fixed state, one end of the inspection lid 7 is rotatable between the lower regulation piece 43 and the upper regulation piece 44 facing each other. That is, when the fixed state between the side ceiling panel 4a and the other end of the inspection lid 7 is released, the inspection lid 7 rotates under its own weight with the tip of the lower regulating piece 43 as the center of rotation, and the clamped portion 72 of the inspection lid 7 is brought into contact with the lower surface of the upper regulating piece 44.

At this time, the elastic force of the leaf spring 73 forces one end of the inspection lid 7 (the clamped part 72) upward, so the biasing force pushes the clamped part 72 of the inspection lid 7 toward the upper regulation piece 44. (the upper regulating piece 44 is sandwiched between the pinched portion 72 and the plate spring 73). This makes it easier to maintain the state in which the clamped part 72 is caught between the lower regulation piece 43 and the upper regulation piece 44, so that the weight of the inspection lid 7 prevents the part 72 from falling between the opposing parts of the lower regulation piece 4 and the upper regulation piece 44. It is possible to suppress the held portion 72 from falling off. Therefore, when releasing the fixed state of the other end of the inspection lid 7, there is no need to support the clamped portion 72 so that it does not fall out from between the opposing lower regulation piece 4 and the upper regulation piece 44. Workability when removing from the side ceiling panel 4a can be improved.

In the present embodiment, the clamped part 72 is prevented from falling off by the biasing force of the leaf spring 73, but for example, the leaf spring 73 may be omitted and the clamped part 72 may be prevented from falling off due to the weight of the inspection lid 7. The protruding dimension of the held part 72 (lower regulating piece 43 and upper regulating piece 44) may be formed to be long so as to have an insertion length of .

Next, by pulling out one end of the inspection lid 7 (pinched portion 72) caught between the lower regulating piece 43 and the upper regulating piece 44 from between the opposing lower regulating piece 43 and the upper regulating piece 44, Remove the inspection lid 7 from the side ceiling panel 4a.

As described above, in this embodiment, the clamped portion 72 on one end side of the inspection lid 7 is slidable relative to the lower regulation piece 43 and the upper regulation piece 44 (one end side of the inspection lid 7 is not attached to the side ceiling panel 4a). The other end of the inspection lid 7 is removably fixed to the side ceiling panel 4a. As a result, the fixed state between the side ceiling panel 4a and the other end of the inspection lid 7 is released, and the clamped portion 72 of the inspection lid 7 is slid on the upper surface side of the lower regulation piece 43 (the upper surface side of the lower regulation piece 43 The inspection lid 7 can be easily removed from the side ceiling panel 4a by pulling it out from the side ceiling panel 4a. Therefore, the workability of removing the inspection lid 7 can be improved. Furthermore, since the entire inspection lid 7 can be removed from the side ceiling panel 4a, the inspection lid 7 can be easily replaced and the inspection lid 7 can be maintained.

By removing the inspection lid 7 and opening the panel opening 40, it becomes possible to access the air conditioning plate 6 through the panel opening 40 (inserting a cleaning tool or hand). The panel opening 40 is formed at a position vertically facing the air regulating plate 6 (the entire air regulating plate 6 is arranged in a position vertically overlapping the panel opening 40 when viewed from the bottom). Maintenance of the air regulating plate 6 can be easily performed.

Since the air baffle plate 6 is removably fixed to the duct 5 (duct opening 50) by the bolt B1, the entire air baffle plate 6 can be removed from the duct 5 by releasing the fixation state by the bolt B1. (See FIG. 5(b)). Thereby, maintenance of the air regulating plate 6 can be performed easily.

By removing the air baffle plate 6 and opening the duct opening 50, it becomes possible to access the inside of the duct 5 through the panel opening 40 and the duct opening 50. The panel opening 40 is formed at a position vertically facing the duct opening 50 (the entire duct opening 50 is arranged at a position vertically overlapping the panel opening 40 when viewed from the bottom). Access to the inside of the duct 5 through 40 can be made easy. Therefore, the workability of maintenance inside the duct 5 can be improved.

The actual opening dimension L2 of the panel opening 40 in the horizontal direction (the opposing distance between the tips of the metal fitting M3 and the upper regulating piece 44) is larger than the opening dimension L1 of the duct opening 50 in the horizontal direction (see FIG. 5(b)). ) has been enlarged. Thereby, the inside of the duct 5 can be easily accessed through the panel opening 40, so that the workability of maintenance inside the duct 5 can be improved.

Here, the duct 5 is arranged on the side (on both ends of the vehicle in the left-right direction) of the ceiling surface of the passenger room R than the center in the left-right direction, and below the duct 5 is a luggage rack 8 (see FIG. 1(b)). and seats are provided. Therefore, it is assumed that the worker performs maintenance by extending his hand or cleaning tool from the center side in the left-right direction of the guest room R (the right side in FIG. 5(b)).

In contrast, in the present embodiment, the end of the panel opening 40 on the vehicle center side in the left-right direction (the right end in FIG. 5(b)) is closer to the vehicle center in the left-right direction than the duct opening 50 ( (right side of FIG. 5(b)). This makes it possible to easily access the inside of the duct 5 through the panel opening 40 when performing maintenance inside the duct 5 from the center side in the left-right direction of the passenger room R. That is, since it is possible to easily insert a hand or a cleaning tool into the duct opening 50 through the panel opening 40 during maintenance, the workability of maintenance inside the duct 5 can be improved.

When attaching the inspection lid 7 to the side ceiling panel 4a, the removal of the air regulating plate 6 and the inspection lid 7 described above may be performed in the reverse order. Specifically, when attaching the inspection lid 7 to the side ceiling panel 4a, first, the clamped portion 72 of the inspection lid 7 is inserted between the lower regulation piece 43 and the upper regulation piece 44 facing each other (the lower regulation piece 43 is (slide it toward the top). In the inserted state, lift the other end of the inspection lid 7 and fix the other end of the inspection lid 7 to the metal fitting M3.

In this way, the clamped portion 72 at one end of the inspection lid 7 is slidable relative to the lower regulation piece 43, and the other end of the inspection lid 7 is fixed to the side ceiling panel 4a via the metal fitting M3. When installing the inspection lid 7, it is possible to eliminate the need for fixing the clamped portion 72 of the inspection lid 7 to the side ceiling panel 4a (lower regulation piece 43). Therefore, workability when attaching the inspection lid 7 to the side ceiling panel 4a can be improved.

In addition, since the upper regulating piece 44 protrudes longer toward the panel opening 40 than the lower regulating piece 43, when inserting it between the opposing lower regulating piece 43 and the upper regulating piece 44, the upper regulating piece 44 The clamped portion 72 of the inspection lid 7 can be slid along the lower surface. Therefore, the clamped portion 72 can be easily inserted between the lower regulating piece 43 and the upper regulating piece 44, which improves work efficiency when attaching the inspection lid 7 to the side ceiling panel 4a.

The vertical distance between the lower regulation piece 43 and the protrusion 44a of the upper regulation piece 44 is set to the same dimension as the plate thickness of the clamped part 72, so that the clamped part 72 has a lower regulation in the closed state. The piece 43 is brought into contact with the upper surface of the inspection lid 7, and the protrusion 44a of the upper regulating piece 44 is brought into contact with the upper surface of the inspection lid 7. As a result, even if the clamped portion 72 of the inspection lid 7 is slidable (non-fixed) relative to the lower regulation piece 43 and the upper regulation piece 44, the lower regulation piece 43 and the upper regulation piece 44 are opposed to each other. It is possible to suppress rattling of the inspection lid 7 between the parts.

Further, when the clamped part 72 rotates between the lower regulating piece 43 and the upper regulating piece 44 when the inspection lid 7 is attached, the tip of the leaf spring 73 (the lower surface of the second curved part 73c) is attached to the upper regulating piece 44. Since it is in contact with the upper surface, the leaf spring 73 is elastically deformed with this rotation. This elastic deformation generates a biasing force that pushes up one end of the inspection lid 7 toward the upper regulation piece 44, which more effectively suppresses rattling of the inspection lid 7 between the opposing lower regulation piece 43 and upper regulation piece 44. can.

Here, since the panel opening 40 and the inspection lid 7 are formed long in the front-rear direction (see FIG. 6), adjusting the relative position of the panel opening 40 and the inspection lid 7 in the front-rear direction requires relatively much effort. In this embodiment, such relative position adjustment can be easily performed using the upper regulating piece 44 and the leaf spring 73.

That is, as described above, the upper regulation pieces 44 are provided in a pair at a predetermined interval in the front and rear (see FIG. 4(b)), and the pair of upper regulation pieces 44 are closer to the panel than the lower regulation pieces 43. It is formed to protrude toward the opening 40 side. Therefore, when a worker looks up from below at the panel opening 40 with the inspection lid 7 removed (when looking up from the bottom in FIG. 5(b)), from the lower regulating piece 43 to the panel opening 40 side. A pair of upper regulation pieces 44 protruding from the top can be visually recognized.

In addition, since a part of the first curved part 73b and the second curved part 73c (see FIG. 4(b)) on the distal end side of the leaf spring 73 also protrude from the edge on the one end side of the inspection lid 7, inspection when lifted is possible. When the operator looks up at the lid 7 from below (when the inspection lid 7 is viewed from below), the leaf spring 73 protruding from the inspection lid 7 can be visually recognized. Further, the distance between the pair of upper regulating pieces 44 (see FIG. 4B) is set to be slightly larger (for example, 10 mm) than the longitudinal dimension of the leaf spring 73.

As a result, by inserting the clamped portion 72 of the inspection lid 7 between the opposing lower and upper regulating pieces 43 and 44 while passing the leaf spring 73 between the pair of upper regulating pieces 44, the side ceiling panel The attachment position of the inspection lid 7 with respect to the panel opening 4a (the relative position of the inspection lid 7 in the front-rear direction with respect to the panel opening 40) can be approximately determined. Therefore, even if the panel opening 40 and the inspection lid 7 are formed long in the front-rear direction, the workability of attaching the inspection lid 7 can be improved.

Furthermore, it functions as an "insertion part" for performing such positioning, and suppresses rattling of the inspection lid 7 (clamped part 72) between the opposing lower regulation piece 43 and upper regulation piece 44 described above. The leaf spring 73 can also have the function of Therefore, the number of parts can be reduced compared to the case where parts having such functions are separately provided.

Further, the tip portion of the leaf spring 73 is formed into an S-shape by a first curved portion 73b and a second curved portion 73c (see FIG. 4(b)), and the second curved portion 73c is formed into a downwardly convex curved shape. Therefore, when inserting the leaf spring 73 between the pair of upper regulation pieces 44, while sliding the lower surface of the second curved portion 73c on the edge of the upper surface of the side ceiling panel 4a, The leaf spring 73 can be inserted toward the top side. Thereby, workability when attaching the inspection lid 7 to the side ceiling panel 4a can be improved.

Next, the air outlet member 10 fixed to the inspection lid 7 will be described with reference to FIGS. 2 and 6. FIG. 6 is a partially enlarged bottom view of the ceiling of the railway vehicle 1 as viewed in the direction of arrow VI in FIG. In addition, in FIG. 6, in order to simplify the drawing, only the main part of the ceiling of the railway vehicle 1 is illustrated, and some illustrations such as the poster rail 45 (see FIG. 2) are omitted.

As shown in FIGS. 2 and 6, a plurality of side ceiling panels 4a are arranged in the front-rear direction (see FIG. 6), and one panel opening 40 is formed in each of the plurality of side ceiling panels 4a. Ru. The panel opening 40 is formed over substantially the entire length of the side ceiling panel 4a in the front-rear direction, but the panel opening 40 is not formed in part of both the front and rear ends of the side ceiling panel 4a. That is, a plurality of inspection lids 7 that close the panel opening 40 are arranged (intermittently) in the front and back.

When the inspection lid 7 is provided intermittently on the side ceiling panel 4a (ceiling surface), the design of the ceiling surface is likely to deteriorate, but in this embodiment, the design is improved by the air outlet member 10. Specifically, the air outlet member 10 is detachably fixed to the lower surface of the inspection lid 7 by a bolt B4, and is provided so as to cover each of the inspection lids 7 arranged in front and behind.

In other words, the size of the air outlet member 10 in the front-back direction is larger than the size of the inspection lid 7, and the air outlet member 10 is arranged side by side in the front-back direction over the area where the plurality of inspection lids 7 are provided. Thereby, the sense of unity between the plurality of inspection lids 7 can be enhanced by the air outlet member 10, and one line along the front-rear direction can be formed on the ceiling surface by the air outlet member 10. Therefore, even when a plurality of inspection lids 7 are disposed intermittently on the ceiling surface, the design of the ceiling surface can be improved.

In this way, when the purpose is to enhance the design of the ceiling surface with the air outlet member 10, it is also possible to cover a plurality of inspection lids 7 with one air outlet member 10, for example. However, in such a configuration, while the air outlet member 10 remains fixed to the inspection lid 7, it is necessary to remove the plurality of inspection lids 7 from the side ceiling panel 4a at the same time. In other words, in order to remove only one of the plurality of inspection lids 7 from the side ceiling panel 4a, it is necessary to remove the air outlet member 10 from the inspection lid 7 in advance.

On the other hand, in this embodiment, one air outlet member 10 is fixed to each of the inspection lids 7 arranged in front and back, and the plurality of air outlet members 10 are arranged in the area between the plurality of inspection lids 7 (panel (areas in which no opening 40 is formed) are butted against each other. More specifically, since the air outlet members 10 are butted against each other at the joints between the plurality of side ceiling panels 4a, when one inspection cover 7 is removed from the side ceiling panel 4a, it cannot be fixed to the other inspection cover 7. It is possible to suppress interference between the air outlet members 10 that are connected to each other.

Thereby, the inspection lid 7 can be removed from the side ceiling panel 4a with the air outlet member 10 fixed to the inspection lid 7. That is, when removing the inspection lid 7 from the side ceiling panel 4a, it is not necessary to remove the air outlet member 10 from the inspection lid 7, so that the workability of removing the inspection lid 7 can be improved.

Furthermore, since the air outlet members 10 are butted against each other at the joints between the side ceiling panels 4a, the seams between the side ceiling panels 4a and the seams between the air outlet members 10 can be arranged one above the other. Thereby, the joints between the air outlet members 10 become less noticeable, so that the design of the ceiling surface can be improved.

Further, since both front and rear end portions of the air outlet member 10 are fixed to the side ceiling panel 4a (an area where the panel opening 40 is not formed) by bolts B5, the end portions of the air outlet member 10 are fixed to the side ceiling panel 4a (an area where the panel opening 40 is not formed). Lifting up from 4a can be suppressed. Thereby, it is possible to suppress the occurrence of a level difference in the butt portions of the air outlet members 10, so that the design of the ceiling surface can be improved.

As described above, it is possible to remove the inspection lid 7 with the air outlet member 10 attached from the side ceiling panel 4a, but for example, it is possible to perform inspection with the inspection lid 7 attached to the side ceiling panel 4a. It is also possible to remove the outlet member 10 from the lid 7. Thereby, the air outlet member 10 can be easily replaced and maintained, and the air regulating plate 6 can be accessed through the air outlet 70 of the inspection lid 7. That is, maintenance of the air outlet member 10 or the air conditioning plate 6 can be performed without removing the inspection lid 7 from the side ceiling panel 4a.

Further, a pair of left and right openings 100 are formed in the air outlet member 10 at positions vertically facing the air outlet 70 of the inspection lid 7 (see FIG. 2). The opening size of the air outlet 70 of the inspection lid 7 is set larger than the opening size of the inspection lid 7 (see FIG. 2). Thereby, by removing the air outlet member 10 from the inspection lid 7 in the closed state, it becomes easy to access the air conditioning plate 6 through the air outlet 70 of the inspection lid 7. Therefore, the workability of maintenance of the air regulating plate 6 can be improved. Furthermore, by adjusting the formation position and opening area of the opening 100, the volume of conditioned air blown out from the outlet 70 can be adjusted.

Although the present invention has been described above based on the above embodiments, the present invention is not limited to the above embodiments, and it is readily understood that various modifications and improvements can be made without departing from the spirit of the present invention. This can be inferred.

In the above embodiment, a case has been described in which the panel 4 (side ceiling panel 4a) and the duct 5 are arranged at a predetermined interval, but the present invention is not necessarily limited to this. For example, the panel 4 (side ceiling panel 4a) may be directly fixed to the duct 5.

In the above embodiment, a case has been described in which the lower regulating piece 43 and the upper regulating piece 44 are respectively formed on the side ceiling panel 4a, but the present invention is not necessarily limited to this. For example, the upper regulating piece 44 may be omitted and one end of the inspection lid 7 (the clamped portion 72) may simply be placed on the upper surface of the lower regulating piece 43. In this case, it is preferable to provide a biasing means for biasing one end of the inspection lid 7 (the clamped portion 72) downward. This allows one end of the inspection lid 7 (the clamped portion 72) to be pressed against the lower regulation piece 43, thereby suppressing the inspection lid 7 from lifting off from the lower regulation piece 43.

In the above embodiment, a case has been described in which the upper regulating piece 44 is formed to protrude toward the panel opening 40 side (the other end side of the inspection lid 7) than the lower regulating piece 43, but it is not necessarily limited to this. . For example, a configuration may be adopted in which the protrusion dimension of the upper regulating piece 44 toward the panel opening 40 side is the same as that of the lower regulating piece 43 or shorter than that. If at least one end side of the inspection lid 7 is configured to be insertable between the lower regulation piece 43 and the upper regulation piece 44, the lower regulation piece 43 and the upper regulation piece 44 can prevent the one end side of the inspection lid 7 from vertically displacing. It can be regulated.

In the embodiment described above, the protrusion 44a is formed on the upper regulation piece 44 (the proximal end side of the upper regulation piece 44 is arranged vertically at a predetermined distance from the clamped part 72 of the inspection lid 7), and the inspection lid 7 is attached/detached. Although a case has been described in which the held portion 72 is rotatable between the opposing lower regulating piece 43 and the upper regulating piece 44, the present invention is not necessarily limited to this.

For example, by omitting the protruding portion 44a of the upper regulating piece 44 and making the vertical spacing between the lower regulating piece 43 and the upper regulating piece 44 the same as the plate thickness of one end side (the clamped part 72) of the inspection lid 7, Alternatively, one end of the inspection lid 7 (held portion 72) may be slid non-rotatably between the lower regulation piece 43 and the upper regulation piece 44. In this case, pull out the inspection lid 7 from the lower regulation piece 43 and the upper regulation piece 44 between the other end of the inspection lid 7 and the edge of the panel opening 40 (slide the inspection lid 7 in the left-right direction). It is sufficient to provide a gap as large as possible.

In the embodiment described above, a case has been described in which the duct 5 is arranged laterally than the center in the left-right direction of the ceiling surface, but the present invention is not necessarily limited to this. For example, the duct 5 may be arranged at the center of the ceiling surface in the left-right direction. That is, the arrangement position of the duct 5 is not limited, and the technical idea of the above embodiment can be applied to any railway vehicle in which an inspection cover is provided on a panel covering the duct.

In the above embodiment, a case has been described in which the opening dimension L2 of the panel opening 40 in the left-right direction is larger than the opening dimension L1 of the duct opening 50, but the present invention is not necessarily limited to this. For example, the opening dimension L2 of the panel opening 40 in the left-right direction may be the same as or smaller than the opening dimension L1 of the duct opening 50.

In the above embodiment, one end side (held part 72) of the inspection lid 7 is configured to be slidable between the lower regulation piece 43 and the upper regulation piece 44 (not fixed to the side ceiling panel 4a). Although explained above, it is not necessarily limited to this. For example, one end of the inspection lid 7 may be fixed to the side ceiling panel 4a with bolts or the like, or may be pivoted with a hinge.

In the above embodiment, a case has been described in which the other end side of the inspection lid 7 is fixed to the side ceiling panel 4a (metal fitting M3) with the bolt B3, but the invention is not necessarily limited to this. For example, the other end of the inspection lid 7 can be fixed to the side ceiling panel 4a by using known fixing means (for example, a catch clip, etc.).

In the above embodiment, a case has been described in which the cushioning material 71 is provided between the inspection lid 7 and the heat insulating material 63, but the invention is not necessarily limited to this. For example, a configuration may be adopted in which the cushioning material 71 is omitted, or a configuration in which the cushioning material 71 is provided in a position that does not vertically overlap with the heat insulating material 63 and the cushioning material 71 is brought into direct contact with the lower surface of the duct 5 may be used.

In the above embodiment, a case has been described in which the one end side (the clamped portion 72) of the inspection lid 7 is urged toward the upper regulation piece 44 side by the urging force of the leaf spring 73, but the invention is not necessarily limited to this. . For example, an elastic body (rubber, sponge, spring, etc.) may be provided between the lower regulation piece 43 or the upper regulation piece 44 and one end side of the inspection lid 7 (pinched portion 72), so that the one end side of the inspection lid 7 is A configuration in which the force is biased downward may also be used. Alternatively, the leaf spring 73 may be omitted, and the buffer material 71 may be elastically deformed in the closed state, so that the inspection lid 7 is biased downward by the elastic force of the buffer material 71.

In this manner, by providing the biasing means that biases one end of the inspection lid 7 upward or downward, the one end of the inspection lid 7 can be pressed against the lower regulation piece 43 and the upper regulation piece 44 side. Thereby, rattling of the inspection lid 7 between the lower regulating piece 43 and the upper regulating piece 44 facing each other can be suppressed.

In the above embodiment, when the attachment position of the inspection lid 7 to the side ceiling panel 4a is determined by inserting the leaf spring 73 between the pair of upper regulation pieces 44 (that is, the leaf spring 73 is an "insertion part"). Although we have explained the case where the device also has the function of For example, a configuration may be adopted in which an insertion piece (insertion part) that can be inserted between the pair of upper regulation pieces 44 is formed integrally with the inspection lid 7.

In the embodiment described above, a case has been described in which the air outlet member 10 is configured separately from the inspection lid 7, but the invention is not necessarily limited to this. For example, the air outlet member 10 may be formed integrally with the inspection lid 7. Moreover, the air outlet member 10 may be omitted.

In the embodiment described above, a case has been described in which one blower outlet member 10 is fixed to each of the plurality of inspection lids 7, but the present invention is not necessarily limited to this. For example, a structure may be adopted in which the length of the outlet member 10 in the front and back direction is shortened and a plurality of outlet members 10 are fixed to one inspection lid 7. In addition, the front-rear direction dimension of the air outlet member 10 is lengthened, and one air outlet member 10 is fixed to a plurality of inspection lids 7 (each of the plurality of inspection lids 7 is covered with one air outlet member 10). But it's okay.

In the above embodiment, a case has been described in which the plurality of air outlet members 10 are butted against each other with the inspection lids 7 facing each other, but the invention is not necessarily limited to this. For example, a configuration may be adopted in which the air outlet members 10 are butted against each other in the region where the inspection lid 7 is arranged.

In the above embodiment, a case has been described in which both ends of the air outlet member 10 in the front and back direction are fixed to the side ceiling panel 4a, but the invention is not necessarily limited to this. For example, the air outlet member 10 may be configured not to be fixed to the side ceiling panel 4a (fixed only to the inspection lid 7). This eliminates the need to release the fixed state between the side ceiling panel 4a and the air outlet member 10 when removing the inspection lid 7 from the side ceiling panel 4a, improving the workability of removing the inspection lid 7.

1 Railroad vehicle 4a side ceiling panel (panel)
40 Panel opening 43 Lower regulation piece 44 Upper regulation piece 5 Duct 50 Duct opening 6 Air regulating plate 63 Insulation material 7 Inspection lid 70 Air outlet 71 Cushioning material 73 Leaf spring (insertion part, biasing means)
10 Air outlet member 100 Opening B1 Bolt (fastening means)
L1 Opening dimension of duct opening L2 Opening dimension of panel opening R Guest room

Claims (12)

A duct having a duct opening formed on the lower surface and extending in the longitudinal direction of the vehicle on the ceiling side of the passenger compartment, and a panel opening formed at a position opposite to the duct opening, of the duct. A railway vehicle comprising a panel that covers a lower surface side and an inspection lid that opens and closes the panel opening,
A buffer material having a predetermined flexibility and arranged between the lower surface of the duct and the inspection lid, an air conditioning plate that sends out the conditioned air passing through the inside of the duct toward the duct opening side, and the air conditioning plate. fastening means for fastening and fixing to the lower surface of the duct, and a heat insulating material surrounding the fastening means on the lower surface side of the duct,
The inspection lid includes an air outlet formed at a position opposite to the duct opening ,
The buffer materials are arranged in a pair across a space between the duct opening and the air outlet,
A railway vehicle characterized in that the fastening means is surrounded by the heat insulating material and the buffer material by bringing the buffer material into close contact with the lower surface of the heat insulating material . A duct having a duct opening formed on the lower surface and extending in the longitudinal direction of the vehicle on the ceiling side of the passenger compartment, and a panel opening formed at a position opposite to the duct opening, of the duct. A railway vehicle comprising a panel that covers a lower surface side and an inspection lid that opens and closes the panel opening,
The inspection lid includes an air outlet formed at a position opposite to the duct opening, and a clamped portion having a partially thinner plate on one end side of the inspection lid,
The panel includes a lower regulating piece disposed below one end side of the inspection lid and regulating downward displacement of the clamped portion, and a lower regulating piece disposed at a predetermined interval above the lower regulating piece. an upper regulating piece protruding toward the opening side;
The upper regulation piece is formed to protrude further toward the panel opening side than the lower regulation piece, and a protrusion that protrudes downward is formed at a tip of the upper regulation piece,
The distance between the lower regulation piece and the protrusion in the vertical direction is set to be the same as the plate thickness of the clamped part, and in the closed state where the inspection lid closes the panel opening, the protrusion A railway vehicle characterized by abutting against the upper surface of an inspection lid. A duct having a duct opening formed on the lower surface and extending in the longitudinal direction of the vehicle on the ceiling side of the passenger compartment, and a panel opening formed at a position opposite to the duct opening, of the duct. A railway vehicle comprising a panel that covers a lower surface side and an inspection lid that opens and closes the panel opening,
The inspection lid includes an air outlet formed at a position opposite to the duct opening, and a leaf spring attached to an upper surface on one end side of the inspection lid and biasing the one end of the inspection lid upward. ,
The panel includes a lower regulating piece disposed below one end side of the inspection lid to regulate downward displacement of the inspection cover, and a lower regulating piece disposed at a predetermined interval above the lower regulating piece and disposed at a predetermined distance from the panel opening. an upper regulating piece protruding toward the side of the part;
The upper regulating pieces are formed in a pair at a predetermined interval in the longitudinal direction of the vehicle, and a plurality of pairs of the upper regulating pieces are arranged in the longitudinal direction of the vehicle,
A railway vehicle characterized in that, in each of the plurality of sets of the pair of upper regulating pieces, the leaf spring is provided at a position where it can be inserted between the opposing pairs of the upper regulating pieces. A buffer material having a predetermined flexibility is provided between the lower surface of the duct and the inspection lid,
The railway vehicle according to claim 2 or 3, wherein the buffer materials are arranged in a pair with a space between the duct opening and the air outlet. A baffle plate for sending the conditioned air passing through the inside of the duct toward the duct opening side, a fastening means for fastening and fixing the baffle plate to the lower surface of the duct, and a periphery of the fastening means to the lower surface side of the duct. and a surrounding insulation material;
5. The railway vehicle according to claim 4 , wherein the shock absorbing material is brought into close contact with the lower surface of the heat insulating material, so that the fastening means is surrounded by the heat insulating material and the buffer material. The panel includes a lower regulating piece disposed below one end side of the inspection lid and regulating downward displacement of the inspection lid,
2. The railway vehicle according to claim 1 , wherein one end of the inspection lid is slidable relative to the lower regulation piece, and the other end of the inspection lid is detachably fixed to the panel. The panel includes an upper regulating piece disposed above the lower regulating piece at a predetermined interval and protruding toward the panel opening side,
One end side of the inspection lid is inserted between the lower regulation piece and the upper regulation piece,
7. The railway vehicle according to claim 6 , wherein the upper regulating piece is formed to protrude closer to the panel opening side than the lower regulating piece. A plurality of the upper regulating pieces are arranged at predetermined intervals on an edge of the panel along the panel opening,
8. The railway vehicle according to claim 7 , wherein the inspection lid includes an insertion portion that protrudes from an edge on one end side of the inspection lid and is inserted between the upper regulation pieces. The railway vehicle according to claim 7 or 8 , further comprising a biasing means for biasing the inspection lid upward or downward. The railway vehicle according to any one of claims 1 to 9 , wherein the opening size of the panel opening is larger than the opening size of the duct opening. The duct is arranged laterally than the center of the ceiling in the left-right direction of the vehicle,
11. The railway vehicle according to claim 10 , wherein an end of the panel opening on the center side in the vehicle left-right direction is located closer to the center of the ceiling in the vehicle left-right direction than the duct opening. an air outlet member having an opening formed at a position opposite to the air outlet and fixed to the lower surface of the inspection lid;
A plurality of the inspection lids are arranged at predetermined intervals in the longitudinal direction of the vehicle,
The size of the air outlet member in the longitudinal direction of the vehicle is larger than the size of the inspection lid,
The railway vehicle according to any one of claims 1 to 11 , wherein the air outlet member is arranged along the longitudinal direction of the vehicle over a region where a plurality of the inspection lids are arranged.

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