JPWO2012176297A1 - Elevator landing door equipment - Google Patents

Abstract

In an elevator hall door device, a door side door pocket closing portion is provided at a door side end of the hall door body. The vertical frame of the landing three-way frame is provided with a vertical frame closing portion with which the door side door closing portion abuts when the landing door body is fully closed. A door pocket airtight member made of an elastic body is provided on at least one of the door side door pocket closing portion and the vertical frame closing portion. The abutment surface between the door side door pocket closing portion and the vertical frame closing portion is formed in the direction in which the doorcase airtight member is elastically deformed by the force received by the landing door body due to the pressure difference between the landing and the hoistway. It is inclined with respect to the opening and closing direction.

Description

  The present invention relates to a landing door device for opening and closing a landing doorway of an elevator, and more particularly to a structure for reducing draft noise.

  In general, in a high-lift elevator, a pressure difference is generated between the landing and the hoistway, so air flows into and out of the hoistway from the gap around the landing door, and at that time, a blowing sound called draft noise is generated. Occur. On the other hand, in the conventional draft suppressing device, an opening other than the landing is provided in the hoistway, and the airflow around the landing door is weakened by controlling the airflow in the hoistway (for example, Patent Document 1).

  In the conventional elevator doorway apparatus, when the landing door is fully closed, the gap between the landing door and the landing three-way frame is closed by a plurality of smoke shield plates. This prevents high-speed airflow generated in the hoistway due to the raising and lowering of the car from passing through the gap around the landing door, and reduces the generation of blowing noise due to the high-speed airflow (see, for example, Patent Document 2).

  Further, in a conventional elevator, a sound insulation device that closes a gap around the car door when the car door is fully closed is provided between the car room and the car door. As a result, the intrusion of noise generated when the car travels at a high speed into the car is reduced (see, for example, Patent Documents 3 and 4).

JP-A-4-213579 JP-A-6-72681 JP-A-6-247675 JP-A-10-120349

  In the conventional draft suppression device disclosed in Patent Document 1, since it is necessary to newly provide an opening in the building, there is a possibility of hindering the layout and design of the building, and a large-scale control device is also required. Becomes higher.

  Moreover, in the conventional elevator doorway apparatus shown by patent document 2, in order to make a smoke-shielding board closely_contact | adhere to a three-way frame, it is necessary to enlarge the closer force of a landing door apparatus, and the load of a landing door apparatus increases. If the contact state of the smoke shield plate is insufficient, a slight gap is partially generated, and draft noise is generated in that portion, so that a sufficient effect cannot be obtained. Therefore, it is necessary to press the smoke shield plate against the three-way frame with a certain pressing force over the entire circumference of the periphery of the landing door, and it is necessary to increase the closer force of the landing door device.

  Furthermore, in the conventional elevators disclosed in Patent Documents 3 and 4, draft noise caused by a pressure difference between the landing and the hoistway is not taken into consideration, so even if these structures are applied to a landing door device, The draft noise cannot be reduced efficiently.

  The present invention has been made in order to solve the above-described problems. It is an object of the present invention to provide an elevator landing door device capable of reducing draft noise with a simple configuration while suppressing an increase in closer force. Objective.

  The elevator landing door device according to the present invention includes a landing three-way frame having a vertical frame provided on the left and right of the landing doorway and an upper frame provided on the upper portion of the landing doorway, and a landing door that opens and closes the landing doorway. The platform three-way frame is provided with a three-way frame side blocking part, and the landing door body is in contact with the three-way frame side blocking part when the landing door body is fully closed. The door side blocking portion includes a door side door closing portion provided at the door side end portion of the landing door body, and the three-side frame side blocking portion is provided in the vertical frame. A vertical frame closing portion that is provided and contacts the door side door pocket closing portion when the landing door body is fully closed, and at least one of the door side door pocket closing portion and the vertical frame closing portion is a door pocket airtight member made of an elastic body. Are provided, and the door side door pocket closing part and the vertical frame closing part Abutment surface, the landing door body is subjected forces the air pressure difference between the landing and the hoistway in a direction door pocket airtight member is elastically deformed, and is inclined with respect to the opening and closing direction of the landing door body.

  According to the elevator landing door device of the present invention, when the landing door body receives a force due to a pressure difference between the landing and the hoistway, the door-tight airtight member is elastically deformed to increase the airtightness. Draft noise can be reduced with a simple configuration while suppressing an increase in force.

1 is a schematic configuration diagram illustrating an elevator according to Embodiment 1 of the present invention. It is a front view which shows the lower landing door apparatus of FIG. It is sectional drawing which follows the III-III line of FIG. It is sectional drawing which follows the IV-IV line of FIG. It is sectional drawing which shows the state in which the pressure was applied to the landing door main body of FIG. 3 from the landing side. It is sectional drawing which shows the state in which the pressure was applied to the landing door main body of FIG. 4 from the landing side. It is explanatory drawing which compares and shows the state just before full closure of the landing door main body of FIG. 3, and the state at the time of full closure. It is explanatory drawing which shows the comparative example with which the contact surface of the door bag airtight member of FIG. 7 and a vertical frame obstruction | occlusion part is at right angle with respect to the front surface of a landing door main body. It is explanatory drawing which compares and shows the state in which the landing door main body of FIG. 3 was installed in the reference position, and the state shifted | deviated from the reference position. It is explanatory drawing which shows the comparative example with which the contact surface of the door bag airtight member of FIG. 9 and a vertical frame obstruction | occlusion part is at right angle with respect to the front surface of a landing door main body. It is a horizontal sectional view of the upper landing door device of FIG. It is a longitudinal cross-sectional view of the upper landing door apparatus of FIG. It is sectional drawing which shows the state in which the pressure was applied to the landing door main body of FIG. 11 from the hoistway side. It is sectional drawing which shows the state in which the pressure was applied to the landing door main body of FIG. 12 from the hoistway side. It is a horizontal sectional view of an elevator hall door device according to Embodiment 2 of the present invention. It is a horizontal sectional view of a landing door device for an elevator according to Embodiment 3 of the present invention. It is a longitudinal cross-sectional view of the landing door apparatus of FIG. 15 or FIG. It is a top view which shows the landing door apparatus of FIG. It is sectional drawing which shows the example which applied the upper airtight member of FIG. 17 to the upper landing door apparatus of FIG. It is a top view which shows the upper landing door apparatus of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a schematic configuration diagram showing an elevator according to Embodiment 1 of the present invention. In this example, a shuttle elevator is shown. In the shuttle elevator, the car is reciprocated (direct operation) between at least one low-rise stop floor and at least one high-rise stop floor.

  In the figure, a machine room 2 is provided in the upper part of the hoistway 1. In the machine room 2, a hoisting machine (driving device) 3, a deflector 4, and an operation control device (control panel) 5 are installed. The hoisting machine 3 includes a drive sheave 6, a hoisting machine motor that rotates the driving sheave 6, and a hoisting machine brake (electromagnetic brake) that brakes the rotation of the driving sheave 6.

  A suspension means 7 is wound around the drive sheave 6 and the deflecting wheel 4. As the suspension means 7, a plurality of ropes or a plurality of belts are used. A car 8 is connected to the first end of the suspension means 7. A counterweight 9 is connected to the second end of the suspension means 7.

  The car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension means 7 and are raised and lowered in the hoistway 1 by the hoisting machine 3. The operation control device 5 controls the operation of the car 8 by controlling the hoisting machine 3.

  The car 8 is provided with a car door device 10 that opens and closes the car doorway. A lower landing door device 11 is provided on the lower floor. An upper landing door device 12 is provided on the high-rise stop floor. The landing door devices 11 and 12 are opened and closed in conjunction with the car door device 10 when the car door device 10 is engaged when the car 8 is landed.

  2 is a front view showing the lower landing door device 11 of FIG. 1, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. 4 is a sectional view taken along line IV-IV in FIG. Then, a two-door central opening type door device is shown.

  A landing three-way frame 13 is provided at the landing entrance. The landing three-way frame 13 has a pair of vertical frames 14 provided on the left and right of the landing doorway, and an upper frame 15 provided on the upper part of the landing doorway. The upper frame 15 is horizontally fixed between the upper end portions of the vertical frame 14.

  The landing doorway is opened and closed by a pair of landing door bodies (door panels) 16. A hanger rail (not shown) for guiding opening / closing of the landing door body 16 is provided at the upper part of the landing doorway. The landing door body 16 is suspended from the hanger rail, and is opened and closed in conjunction with the car door device 10.

  Each landing door body 16 has a front surface 16 a facing the landing and a back surface 16 b facing the hoistway 1. A door stop rubber 17 is fixed to the end portion of the back surface 16b of each landing door body 16 on the side opposite to the door pocket. The door stop rubber 17 is sandwiched between a door stop rubber pressing member 18 fixed to the back surface 16 b and the landing door main body 16.

  Further, the door stop rubber 17 is continuously disposed in the entire height direction of the landing door main body 16. Thereby, when the landing door main body 16 is fully closed, the door rubbers 17 come into contact with each other, and the gap between the landing door main bodies 16 is sealed.

  A reinforcing plate 19 is fixed to the lower end portion of the back surface 16b of each landing door body 16. A plurality of door legs 20 are fixed to the reinforcing plate 19. The door legs 20 are spaced from each other in the width direction of the landing door body 16.

  A lower airtight member 21 is fixed to the reinforcing plate 19. The lower airtight member 21 is sandwiched between the lower pressing member 22 fixed to the reinforcing plate 19 and the reinforcing plate 19. Further, the lower airtight member 21 is continuously arranged in the entire width direction of the landing door body 16. Furthermore, the lower airtight member 21 is made of an elastic body such as rubber.

  A landing threshold 23 is provided below the landing entrance. The landing threshold 23 is provided with a threshold groove 23a. A door leg 20 is inserted into the threshold groove 23a. The door leg 20 is slid in the threshold groove 23a when the landing door body 16 is opened and closed.

  The lower airtight member 21 is in contact with the upper surface of the landing threshold 23 on the landing side with respect to the threshold groove 23a. Thereby, when the landing door main body 16 is fully closed, the gap between the lower end portion of the landing door main body 16 and the upper surface of the landing threshold 23 is sealed.

  The door side end of each landing door body 16 is provided with a door side door closing body (door side door closing portion) 24 that closes a gap between the landing door body 16 and the vertical frame 14 when the landing door body 16 is fully closed. The door side door pocket closing body 24 includes a door pocket shielding plate 25 having an L-shaped cross section fixed to the door pocket side end portion of the landing door main body 16 and a door pocket airtight member 26 fixed to the door pocket shielding plate 25.

  Each door pocket shielding plate 25 is fixed to the door pocket side end face of the landing door main body 16 and is bent at a right angle to the landing doorway side of the flat fixing portion 25a protruding to the vertical frame 14 and the landing side end portion of the fixing portion 25a. And a flat plate-like facing portion 25b. The facing portion 25 b faces the front surface 16 a of the landing door body 16 in parallel.

  The door pocket airtight member 26 is fixed inside the corner of the door pocket shielding plate 25. Further, the door-seal airtight member 26 is continuously disposed in the entire height direction of the landing door main body 16. Furthermore, the door bag airtight member 26 is made of an elastic body such as rubber.

  The vertical frame 14 is provided with a vertical frame bent portion 14 a as a vertical frame closing portion with which the door-tight airtight member 26 abuts when the landing door body 16 is fully closed. In this example, the vertical frame bent portion 14a is formed by bending an end portion of the vertical frame 14 at an acute angle. Further, the vertical frame bent portion 14 a is continuously formed in the entire height direction of the vertical frame 14.

  The contact surface of the door-bag airtight member 26 and the vertical frame bent portion 14a is elastically deformed (compressed) by the force received by the landing door body 16 due to the pressure difference between the landing and the hoistway 1. Are inclined with respect to the opening / closing direction of the landing door body 16.

  A door-side upper closing body (door-side upper closing portion) 27 that closes a gap between the landing door body 16 and the upper frame 15 when the landing door body 16 is fully closed is provided at the upper end portion of each landing door body 16. The door-side upper closing body 27 includes an upper shielding plate 28 having an L-shaped cross section fixed to the upper end portion of the landing door main body 16 and an upper airtight member 29 fixed to the upper shielding plate 28.

  Each upper shielding plate 28 is horizontally fixed to the upper end surface of the landing door main body 16, and a flat plate-like fixing portion 28 a protruding toward the upper frame 15, and a landing-side end portion of the fixing portion 28 a is bent at a right angle downward. And a flat plate-like facing portion 28b. The facing portion 28 b faces the front surface 16 a of the landing door body 16 in parallel.

  The upper airtight member 29 is fixed inside the corner portion of the upper shielding plate 28. Further, the upper airtight member 29 is continuously arranged in the entire width direction of the landing door body 16. Further, the upper airtight member 29 is made of an elastic body such as rubber.

  The upper frame 15 is provided with an upper frame bent portion 15a as an upper frame closing portion with which the upper airtight member 29 abuts. In other words, the upper airtight member 29 is provided at a contact portion with the upper frame bent portion 15 a of the door side door closure body 24. In this example, the upper frame bent portion 15a is formed by bending an end portion of the upper frame 15 at an acute angle. The upper airtight member 29 is slid with respect to the upper frame bent portion 15a when the landing door body 16 is opened and closed.

  The contact surfaces of the upper airtight member 29 and the upper frame bent portion 15a are elastically deformed (compressed) by the force received by the landing door body 16 due to the pressure difference between the landing and the hoistway 1. Are inclined with respect to a vertical plane parallel to the opening / closing direction of the landing door body 16.

  The door side closing part has a door side door pocket closing body 24 and a door side upper closing body 27. Further, the three-side frame side blocking portion has a vertical frame bent portion 14a and an upper frame bent portion 15a. When the landing door body 16 is fully closed, the door side door closure 24 and the vertical frame bent portion 14a come into contact with each other, and the door side upper closed body 27 and the upper frame bent portion 15a come into contact with each other. And the landing door body 16 are closed.

  Here, in high-rise buildings, it is widely known that, in winter, the lower floor landing is at a higher pressure than the hoistway, and the higher floor landing is at a lower pressure than the hoistway. And the draft noise in the landing door apparatuses 11 and 12 is generated due to such a pressure difference. However, in summer, the temperature difference between the landing and the hoistway is relatively small, and the problem of draft noise often does not occur.

  5 is a cross-sectional view showing a state where pressure is applied to the landing door body 16 of FIG. 3 from the landing side, and FIG. 6 is a cross-sectional view showing a state where pressure is applied to the landing door body 16 of FIG. 4 from the landing side. When the landing side of the lower landing door device 11 becomes higher than the hoistway 1 side, the landing door main body 16 receives a pressure from the landing side to the hoistway 1 side, that is, a positive draft pressure due to a draft phenomenon, and the hoistway 1 side Slightly displaced.

  Thereby, the door bag airtight member 26 is pressed against the vertical frame bent portion 14a and elastically deformed. The upper airtight member 29 is elastically deformed by being pressed against the upper frame bent portion 15a. Thereby, the airtightness between the landing door body 16 and the landing three-way frame 13 is improved.

  FIG. 7 is an explanatory view showing a comparison between the state (upper stage) immediately before full closing of the landing door body 16 of FIG. 3 and the state (lower stage) when fully closed. In order to completely close the gap between the landing door main body 16 and the vertical frame 14 when the landing door main body 16 is fully closed, the door pocket airtight member 26 is connected to the vertical frame bent portion 14a regardless of the presence or absence of the draft phenomenon. To some extent.

  At this time, when the bending angle θ of the vertical frame bent portion 14a is set, the pressing amount = the moving amount of the landing door main body 16 × sin θ, and the pressing amount becomes smaller than the moving amount of the landing door main body 16 from the start of contact.

  On the other hand, FIG. 8 is an explanatory view showing a comparative example in which the contact surface between the door bag airtight member 26 and the vertical frame bent portion 14a of FIG. 7 is perpendicular to the front surface 16a (door opening / closing direction) of the landing door body 16. FIG. In this case, since the pressing amount = the moving amount of the landing door body 16, when the moving amount of the landing door body 16 is the same, the pressing amount of the door bag airtight member 26 is smaller in FIG. 7 than in FIG. 8. . That is, in FIG. 7, the repulsive force of the door-seal member 26 can be reduced, and the burden of the closer force of the lower landing door device 11 can be reduced.

  FIG. 9 is an explanatory view showing a comparison between the state where the landing door body 16 of FIG. 3 is installed at the reference position (upper stage) and the state where it is shifted from the reference position (lower stage). The positional relationship between the landing door main body 16 and the landing three-way frame 13 is not necessarily constant due to the influence of dimensional errors in manufacturing or installation.

  For example, as shown in FIG. 9, when the landing door main body 16 is installed closer to the door pocket (open side) than the reference position, the mounting position of the door cover shielding plate 25 on the landing door main body 16 is set to the landing door main body 16. By adjusting in a direction perpendicular to the opening and closing direction (up and down direction in FIG. 9), the door pocket airtight member 26 can be more closely attached to the vertical frame bent portion 14a.

  The adjustment of the mounting position of the door pocket shielding plate 25 can be easily performed by, for example, fixing the door pocket shielding plate 25 to the landing door body 16 with a plurality of screws and making the holes through which the screws pass into long holes. .

  On the other hand, FIG. 10 is an explanatory view showing a comparative example in which the contact surface between the door bag airtight member 26 and the vertical frame bent portion 14a of FIG. 9 is perpendicular to the front surface 16a of the landing door body 16. In this case, a gap may be generated between the door pocket shielding plate 25 and the vertical frame bent portion 14a.

  11 is a horizontal sectional view of the upper landing door device 12 of FIG. 1, and FIG. 12 is a vertical sectional view of the upper landing door device 12 of FIG. 1, showing cross sections corresponding to FIGS. 3 and 4, respectively. In the upper landing door device 12, the vertical frame bent portion 14 a is formed by bending an end portion of the vertical frame 14 at an obtuse angle. Thereby, the contact surface of the door bag airtight member 26 and the vertical frame bent portion 14 a is inclined in the opposite direction to the case of the lower landing door device 11.

  Further, the upper frame bent portion 15a is formed by bending an end portion of the upper frame 15 at an obtuse angle. Thereby, the contact surface of the upper airtight member 29 and the upper frame bent portion 15a is also inclined in the opposite direction to the case of the lower landing door device 11. Other configurations are the same as those of the lower landing door device 11.

  As described above, in the upper landing door device 12, the hoistway 1 has a higher pressure than the landing in winter. 13 is a cross-sectional view showing a state where pressure is applied to the landing door body 16 of FIG. 11 from the hoistway 1 side, and FIG. 14 is a cross section showing a state where pressure is applied to the landing door body 16 of FIG. FIG.

  When the hoistway 1 side of the upper landing door device 12 becomes higher in pressure than the landing side, the landing door main body 16 receives a pressure from the hoistway 1 side to the landing side, that is, a negative draft pressure due to a draft phenomenon, and slightly enters the landing side. Displaced.

  Thereby, the door bag airtight member 26 is pressed against the vertical frame bent portion 14a and elastically deformed. The upper airtight member 29 is elastically deformed by being pressed against the upper frame bent portion 15a. Thereby, the airtightness between the landing door body 16 and the landing three-way frame 13 is improved.

  According to such elevator landing door devices 11 and 12, draft noise can be reduced with a simple configuration while suppressing an increase in closer force.

  Further, when the landing door main body 16 is heated from the landing side in the event of a fire, the door-side door closure body 24 is engaged with the vertical frame 14 to prevent thermal deformation of the landing door main body 16, so that the landing door body 16 enters the hoistway 1. Flame intrusion is prevented. That is, the door side door closure 24 also functions as a fireproof member.

In Embodiment 1, the door-side door closure body 24 and the door-side upper closure body 27 are provided in both the lower landing door device 11 and the upper landing door device 12, but they may be provided only in either one. For example, when the problem of draft noise on a higher floor is small, the upper landing door device 12 does not have to take measures against draft noise.
Further, in the first embodiment, the door-case airtight member 26 and the upper airtight member 29 are provided on the door-side closing portion, but are provided on the three-side frame-side closing portion side or on both the door-side closing portion and the three-side frame-side closing portion. It may be provided.

Embodiment 2. FIG.
Next, FIG. 15 is a horizontal sectional view of an elevator landing door device according to Embodiment 2 of the present invention, and shows a cross section corresponding to FIG. FIG. 15 shows an application example to the lower landing door device 11 of FIG. In the figure, the door bag airtight member 31 has a fin portion 31a that abuts the vertical frame bent portion 14a when the landing door body 16 is fully closed.

  The door bag airtight member 31 is continuously arranged in the entire height direction of the landing door main body 16. Moreover, the door pocket airtight member 31 is comprised by elastic bodies, such as rubber | gum, for example. Other configurations are the same as those in the first embodiment.

  Even when such a door-seal member 31 is used, when the landing door body 16 receives a positive draft pressure, the fin portion 31a is elastically deformed (bending deformation), and the space between the landing door body 16 and the landing three-way frame 13 is reduced. Sealability is improved. Therefore, draft noise can be reduced with a simple configuration while suppressing an increase in the closer force.

  Moreover, since the repulsive force of the door pocket airtight member 31 reduces by providing the fin part 31a in the door pocket airtight member 31, the burden of the closer force of the lower landing door apparatus 11 can be further reduced.

Embodiment 3 FIG.
Next, FIG. 16 is a horizontal sectional view of an elevator landing door device according to Embodiment 3 of the present invention, and shows a section corresponding to FIG. Moreover, in FIG. 16, the example applied to the lower landing door apparatus 11 of FIG. 1 is shown.

  A door-case shielding plate 32 as a door-side door-bag closing portion is provided at a door-side end portion of each landing door main body 16. Each door pocket shielding plate 32 is fixed to the door side end surface of the landing door main body 16, and a flat plate-like fixing portion 32 a protruding to the vertical frame 14 side and the landing side end portion of the fixing portion 32 a are bent at an obtuse angle toward the landing doorway side. And a flat inclined portion 32b. The inclined portion 32b faces the vertical frame bent portion 14a in parallel.

  The door bag airtight member 31 is fixed to the vertical frame bent portion 14a. The vertical frame blocking portion of the third embodiment has a vertical frame bent portion 14 a and a door-seal airtight member 31. When the landing door body 16 is fully closed, the fin portion 31a contacts the inclined portion 32b. Other configurations are the same as those in the second embodiment.

  Thus, even when the door-seal airtight member 31 is attached to the vertical frame 14 side, when the landing door main body 16 receives a positive draft pressure, the fin portion 31a is elastically deformed (bending deformation) by the inclined portion 32b, and the landing door main body The sealing property between 16 and the landing three-way frame 13 is improved. Therefore, draft noise can be reduced with a simple configuration while suppressing an increase in the closer force.

  Moreover, since the repulsive force of the door pocket airtight member 31 reduces by providing the fin part 31a in the door pocket airtight member 31, the burden of the closer force of the lower landing door apparatus 11 can be further reduced.

  In the second and third embodiments, the application example to the lower landing door device 11 has been described. However, when applied to the upper landing door device 12, as shown in FIG. What is necessary is just to incline the contact surface with the curved part 14a or the inclination part 32b in the reverse direction to the case of the lower landing door apparatus 11. FIG.

  Here, FIG. 17 is a longitudinal sectional view of the landing door device of FIG. 15 or FIG. 16, and shows a cross section corresponding to FIG. An upper shielding plate (door-side upper closing portion) 33 having an L-shaped cross section is fixed to the upper end portion of the landing door main body 16. Each upper shielding plate 33 is horizontally fixed to the upper end surface of the landing door body 16, and is fixed to a flat plate-shaped fixing portion 33a protruding toward the upper frame 15, and a landing-side end portion of the fixing portion 33a is bent downward at a right angle. And a flat plate-like facing portion 33b. The facing portion 33 b faces the front surface 16 a of the landing door body 16.

  A support member 34 having an L-shaped cross section is fixed in the upper frame 15. An upper frame closing body 35 as an upper frame closing portion is fixed on the support member 34. The upper frame closing body 35 includes an upper airtight member 36 and an upper holding metal fitting 37 that holds the upper airtight member 36.

  The upper airtight member 36 has a fin portion 36a that is in contact with the surface of the facing portion 33b on the landing door body 16 side. Further, the upper airtight member 36 is continuously disposed in the entire width direction of the landing door main body 16. Further, the upper airtight member 36 is made of an elastic body such as rubber.

  FIG. 18 is a plan view showing the landing door device of FIG. The facing portion 33b and the upper airtight member 36 are not parallel to the opening / closing direction of the landing door body 16 but are inclined at a predetermined angle. Further, the facing portion 33b and the upper airtight member 36 are arranged in parallel to each other.

  In such a configuration, when the landing door main body 16 receives a positive draft pressure, the fin portion 36a is elastically deformed, and the sealing performance between the landing door main body 16 and the landing three-way frame 13 is improved. Further, the upper airtight member 36 does not always slide with respect to the facing portion 33b during the opening / closing operation of the landing door main body 16, but is brought into contact with the facing portion 33b only when the landing door main body 16 is fully closed. Therefore, the closer force of the landing door device can be further reduced.

  19 is a sectional view showing an example in which the upper airtight member 36 of FIG. 17 is applied to the upper landing door apparatus 12 of FIG. 1, and FIG. 20 is a plan view showing the upper landing door apparatus 12 of FIG. The upper frame closing body 35 includes an upper airtight member 36 and an upper holding metal fitting 38 that holds the upper airtight member 36. The fin portion 36a of the upper airtight member 36 is in contact with the surface of the facing portion 33b opposite to the landing door body 16. The facing portion 33b and the upper airtight member 36 are disposed at a predetermined angle with respect to the front surface 16a of the landing door body 16 in the opposite direction to FIG.

  In such a configuration, when the landing door main body 16 receives a negative draft pressure, the fin portion 36a is elastically deformed, and the sealing performance between the landing door main body 16 and the landing three-way frame 13 is improved. Further, the upper airtight member 36 does not always slide with respect to the facing portion 33b during the opening / closing operation of the landing door main body 16, but is brought into contact with the facing portion 33b only when the landing door main body 16 is fully closed. Therefore, the closer force of the landing door device can be further reduced.

It should be noted that the airtight members 26 and 29 shown in the first embodiment and the airtight members 31 and 36 shown in the second and third embodiments can be used in appropriate combinations.
In the above example, a two-door center opening type landing door device is shown, but the type of the door device is not limited to this.
Furthermore, although the 1: 1 roping elevator is shown in FIG. 1, the roping method is not limited to this, and the present invention can be applied to, for example, a 2: 1 roping elevator.
Furthermore, although the shuttle elevator is shown in FIG. 1, the present invention can be applied to various elevators other than the shuttle elevator.

Claims (4)

A landing three-way frame having a vertical frame provided on the left and right of the landing doorway and an upper frame provided on the upper portion of the landing doorway, and a landing door body for opening and closing the landing doorway,
The landing three-way frame is provided with a three-side frame side blocking portion,
The landing door body is provided with a door-side blocking portion that contacts the three-way frame side blocking portion and closes a gap between the landing three-way frame when the landing door body is fully closed.
The door side closing part includes a door side door closing part provided at a door side end part of the landing door body,
The three-side frame side blocking portion is provided in the vertical frame, and includes a vertical frame blocking portion with which the door-side door cover blocking portion abuts when the landing door body is fully closed,
At least one of the door side door pocket closing portion and the vertical frame closing portion is provided with a door bag airtight member made of an elastic body,
The abutment surface between the door-side door pocket closing portion and the vertical frame closing portion is in a direction in which the door-seal airtight member is elastically deformed by a force received by the landing door body due to a pressure difference between the landing and the hoistway. A landing door device for an elevator that is inclined with respect to the opening / closing direction of the landing door body. The door side door pocket closing portion has a door pocket side mounting bracket having an L-shaped cross section facing the front surface of the landing door main body, and the door pocket airtight member fixed to the door pocket side mounting bracket,
The elevator landing door device according to claim 1, wherein the vertical frame closing portion is a vertical frame bent portion formed by bending an end portion of the vertical frame.   The door pocket airtight member is fixed to one of the door side door pocket closing portion and the vertical frame closing portion, and has a fin portion that comes into contact with the other of the door side door pocket closing portion and the vertical frame closing portion. The elevator hall door device according to claim 1. The door side blocking portion includes a door side upper blocking portion provided at an upper end portion of the landing door body,
The three-side frame side blocking portion includes an upper frame blocking portion with which the door-side upper blocking portion abuts when the landing door body is fully closed,
At least one of the door side upper closing part and the upper frame closing part is provided with an upper airtight member made of an elastic body,
The contact surface between the door-side upper closing portion and the upper frame closing portion is in a direction in which the upper airtight member is elastically deformed by a force received by the landing door body due to a pressure difference between the landing and the hoistway. The elevator landing door device according to claim 1, wherein the landing door main body is inclined with respect to the opening / closing direction of the landing door main body.

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