JP5708112B2 - Elevator door smoke barrier - Google Patents

Description

The present invention relates to a smoke shielding device for an elevator door that improves the airtightness of a door mechanism between an elevator hoistway and an elevator hall, and blocks the flow of smoke when a fire occurs.

Between the elevator hall of the building and the hoistway, there is an entrance as an entrance / exit for the elevator, a three-way frame is installed at the entrance, and a sliding door type door panel that opens and closes the entrance on the back side of the three-way frame. Is provided.

The doorway is normally closed by the door panel, and when the car moving up and down in the hoistway reaches the elevator hall on the floor, the doorway opens, and when the car leaves the elevator hall, the doorway opens and closes the doorway. Closed.

By the way, although the doorway is normally closed with a door panel, there is a slight gap between the door panel and the three-sided frame, so when a fire occurs in the elevator hall, the smoke passes through the gap. It flows into the hoistway, and the hoistway works as a chimney that raises smoke to increase the fire power, and the smoke spreads to other floors, making it difficult to evacuate residents.

Therefore, in recent years, it has become an important issue to improve the sealing performance of the door mechanism, and as a part of that, the gap between the three-sided frame and the door panel is sealed with an airtight material made of an elastic material such as rubber. Things are going to be done.

That is, a holding material for forming a plurality of screw holes at a predetermined pitch in a three-way frame or a door panel, screwing a screw into each screw hole, and fixing an airtight material made of an elastic body such as rubber with the plurality of screws. Is attached to the three-sided frame or door panel, and this airtight material is elastically brought into contact with the surface of the door panel or three-way frame when the door panel is closed, and the airtight material seals the gap between the three-sided frame and the door panel so that smoke can flow. The door mechanism is shut off to increase the airtightness of the door mechanism.

The installation of the airtight material is performed by field work in which a three-way frame is installed in the building and then attached to the three-way frame or door panel with a plurality of screws.

Hereinafter, an example in which the airtight material is fixed to the door pocket side end portion of the door panel with a plurality of screws via the holding material will be described with reference to FIGS. FIG. 12 is a rear view of the door panel, and the right side is the door pocket side. FIG. 13 is a cross-sectional view taken along the line AA in FIG. 12, and is a horizontal cross-sectional view of the door panel end portion of the door panel, with the door stop side omitted. Reference numeral 17 denotes an airtight material, 7 denotes a mounting screw, 8 denotes a door panel, and 6 denotes a holding material.

The airtight member 17 is fitted into the holding member 6 and is fixed to the end portion of the door panel 8 in the door pocket direction by a plurality of mounting screws 7 at a predetermined pitch via the holding member 6, and the door is fully closed. Sometimes the airtight member 17 comes into contact with the side frame of the three-way frame to obtain airtight performance.

JP-A-2005-306578

However, in the conventional structure as described above, the hermetic material must be fixed to the door panel with a plurality of screws. The installation of the airtight material is done by on-site work after the door panel is installed in the building, so it is a work in a limited space, and it takes a lot of labor to finely work the airtight material with screws and screws. It takes time and is inefficient, and workability is reduced.

In particular, as with a high-rise building, if the airtight material for smoke shielding is attached to the door panels at the entrances and exits in each elevator hall on multiple floors, the efficiency becomes worse and workability is further reduced. .

In addition, since the airtight material gradually deteriorates, it is necessary to carry out maintenance for replacement periodically or as necessary. However, the airtight material must also be replaced by removing and attaching screws. Therefore, the efficiency is poor and the maintainability is lowered.

As an efficient method for attaching the airtight material to the upper frame of the three-way frame, a method for fixing the airtight material with a fastener has been proposed in order to reduce the efficiency of attaching the airtight material. (Japanese Patent Laid-Open No. 2005-306578)

The prior art will be described with reference to FIG. 3 is a three-sided frame, 4 is a side frame, 5 is an upper frame, 8 is a door panel, 12b is a folded plate, 17 is an airtight material, 18 is a fastener, 22 is a base of the airtight material, 23 is a sealed portion of the airtight material, Reference numeral 25 denotes a clamping part of the fastening tool, 26 denotes a pressing part of the fastening tool, and G denotes a gap between the door panel and the three-way frame.

A three-way frame 3 provided in a boarding / exiting section between the elevator hall and the hoistway of the building, and a door panel 8 arranged to be movable in the left-right direction so as to face the three-way frame 3 and opening and closing the boarding / exiting part by the movement; The elastic body is attached to the folded plate 12b formed on the upper frame 5 at the top of the three-way frame 3 and seals the gap G between the upper frame 5 and the door panel 8 by contacting the door panel 8. An airtight member 17 and a fastening tool 18 for attaching the airtight material 17 to the folded plate 12b. The fastening tool 18 has a pinch portion 25 that can be expanded elastically. Then, the base portion 22 of the airtight material 17 is elastically sandwiched between the edges of the folded plate 12b, and the airtight material 17 is detachably attached to the folded plate 12b.

However, the prior art is a technology specialized for the upper frame of the three-way frame, and the number of parts is increased by the amount of the fastener, and further, the elastic body is sandwiched between the fasteners, so that the work efficiency is deteriorated. It was the cause.

A smoke shielding device for an elevator door according to the present invention is arranged in a three-way frame provided in a boarding / exiting portion between an elevator hall and a hoistway of a building, and is arranged so as to be movable in the left-right direction facing the three-way frame, A door panel that opens and closes the boarding / alighting part by movement, and an elastic body that is attached to at least one of the three-way frame and the door panel and seals a gap between the three-way frame and the door panel by contacting the door panel or the three-way frame And an elastic member for attaching the hermetic material to at least one of the three-way frame and the door panel, the elastic member having a pinch portion that can be expanded elastically, and the three-way frame And an airtight material mounting holding member fixed to at least one of the door panel and having the airtight material attached thereto, the airtight material is elastically sandwiched between the airtight material and the airtight material. Characterized by comprising removably attached to at least one of the door panel and the jamb.

Further, a smoke shielding device for an elevator door according to the present invention is disposed in a three-way frame provided in a boarding / alighting part between an elevator hall and a hoistway of a building, and is movable in the left-right direction so as to face the three-way frame. A door panel that opens and closes the boarding / exiting part by the movement, and is attached to at least one of the three-sided frame and the door panel, and seals a gap between the three-sided frame and the door panel by contacting the door panel or the three-sided frame An airtight material made of an elastic body, and an elastic member for attaching the airtight material to at least one of the three-way frame and the door panel, the elastic member being fixed to at least one of the three-way frame and the door panel, The elastic member forms a gap with the three-way frame or the door panel to which the elastic member is attached, and the airtight material is taken into the gap. A gripping member for holding the airtight material mounting holder inserted therein, and a knob capable of elastically sandwiching and holding the elastic member against the base of the airtight material mounting holding material; and holding the airtight material in the three-way frame And detachably attached to at least one of the door panels.

The elastic member may be a leaf spring. In addition, the elastic member may be biased to the knob by using an elastic material in a direction in which the elastic member is pressed against the base of the airtight material or the base of the airtight material mounting holding material. The elastic material may be a spring. Further, the airtight material mounting holding material may be an extruded material. Further, the gap between the three-way frame and the door panel may be a gap between a side frame and the door panel.

Further, a part of the elastic member may be fitted to a part of the holding member for attaching the airtight material. In addition, a part of the elastic member may be a tip of an elastic body, and a part of the holding member for attaching the airtight material may be a groove formed in a base portion of the holding material for attaching the airtight material. In addition, a part of the elastic member may be a bent portion of an elastic body, and a part of the airtight material mounting holding material may be a groove formed in a base of the airtight material mounting holding material. . Further, a part of the elastic member may be a convex portion formed by embossing an elastic body, and a part of the holding member for mounting the airtight material may be a hole or a recess provided in a base of the holding member for mounting the airtight material. good. In addition to fixing with the elastic member, at least one location of the airtight material mounting holding material may be fixed with screws.

According to this invention, the three-sided frame or door panel has a smoke-tight airtight material that does not require the troublesome work of using screws, or can be easily and efficiently attached with only a minimum screw fixing. A gap between the door panel and the door panel can be sealed.

The perspective view which shows an elevator door provided with a smoke-shielding apparatus. The back view at the time of having comprised the elastic member from the upper direction to the downward direction with the door panel which concerns on this invention. The back view at the time of comprising the divided elastic member in the door panel which concerns on this invention. Sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material through a holding material in Example 1. FIG. In Example 1, sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material without a holding material. In Example 2, sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material through a holding material. In Example 2, sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material without a holding material. In Example 3, sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material through a holding material. In Example 3, the perspective view of a door panel upper end in the case of attaching an airtight material via a holding material. In Example 3, sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material without a holding material. In Example 3, the perspective view of the door panel upper end at the time of attaching an airtight material without a holding material. The rear view of a door panel when a holding material or an airtight material is fixed only with screws. Sectional drawing of the part which follows the AA line of FIG. Sectional drawing of the part in alignment with the BB line in FIG. 1 which shows the upper frame and door panel of a three-way frame which concern on a prior art. In Example 4, sectional drawing of the part in alignment with the AA line of FIG. 2 or FIG. 3 at the time of attaching an airtight material through a holding material. In Example 5, sectional drawing of the part in alignment with the AA of FIG. 2 or FIG. 3 at the time of attaching an airtight material through a holding material.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an elevator entrance / exit provided with a smoke shielding device according to the present invention and the prior art as seen from the elevator hall side. An entrance / exit 2 is formed on the wall surface of the elevator hall 1 as an entrance / exit. The back side is a hoistway where the car goes up and down. In addition, there is no difference in the appearance of the boarding / alighting part by this invention seen from the elevator hall side and a prior art.

A three-way frame 3 is installed at the entrance / exit 2, and the three-way frame 3 is configured in a gate shape with a pair of side frames 4 arranged on the left and right sides and an upper frame 5 installed between the upper portions of the side frames 4. Has been.

For example, a pair of double-open door panels 8 for opening and closing the doorway 2 are provided on the back side of the three-way frame 3. Although not shown, the door panel 8 has a plurality of door rollers at the upper portion thereof, and each door roller is movably suspended on a door rail installed horizontally on the wall surface of the building and is suspended so as to be movable in the left-right direction. The doorway 2 is opened and closed by movement in the direction. A sill 9 is provided horizontally at the lower back side of the entrance 2 so as to be substantially flush with the floor of the elevator hall 1, and the door panel 8 moves in the left-right direction along the sill 9.

Example 1 will be described with reference to FIGS. 2, 4 and 5. FIG.

FIG. 2 is a rear view of the door panel 8 in FIG. 1 to which the elevator door smoke control device according to the first to third embodiments is attached. The right side of the drawing represents the door pocket side. The door pocket side is the direction in which the door panel opens. An elastic member 10 for attaching an airtight material is attached to the door panel side of the door panel 8 with a fastening material such as a rivet 11 or an adhesive material from the upper part to the lower part of the door panel.

FIG. 4 shows a cross-sectional structure of a portion along line AA in FIG. 2, and the door panel 8 provided at the entrance / exit 2 faces the back of the three-way frame 3 when closed, and A gap G is generated between the folded plate 4 a and the surface of the door panel 8.

The airtight member 17 is sandwiched between the elastic members 10 and is elastically attached. The hermetic material 17 has substantially the same length as the door panel 8, and the airtight material 17 abuts against the back folded plate 4 b of the side frame 4 to seal the gap G. By this sealing, the elevator hall 1 side is sealed. And the air flow path between the hoistway on the back side of the door panel 8 are blocked. Note that the gap between the door panel 8 and the upper frame 5 of the three-way frame 3 and the gap between the door contact portions of the door panel 8 are sealed by an airtight material (not shown) attached to the door panel 8 or the upper frame 5.

Therefore, inconveniences such as smoke flowing into the hoistway side when a fire occurs on the elevator hall 1 side are prevented, thereby preventing chimney formation by the hoistway, increasing the fire power and other smoke to the floor Diffusion can be suppressed.

The airtight member 17 shown in FIG. 4 is fitted into the holding member 6, and the holding member 6 is inserted into the elastic member 10 and fixed to the door panel 8.

The holding member 6 is made of an extruded material of aluminum.

The airtight member 17 shown in FIG. 5 is directly inserted and fixed to the elastic member 10 without a holding member.

When the airtight material 17 has a low hardness and is made of a soft material, as shown in FIG. 4, it is preferable that the airtight material 17 is inserted into the elastic member 10 via the holding material 6 and fixed to the door panel 8. 17 is easy to detach and work efficiency is good.

On the other hand, if the airtight material 17 is hard and is made of a hard material, the airtight material 17 may be inserted into the elastic member 10 without a holding material and fixed to the door panel 8 as shown in FIG. The material 17 can be easily attached and detached, the work efficiency is not deteriorated, and the number of parts is increased when the holding material is used, and the cost is increased. Therefore, the material 17 is inserted into the elastic member 10 without using the holding material. It is better to fix to the door panel 8.

Therefore, depending on the material of the airtight member 17, it may be properly used whether or not the holding member is interposed.

As shown in FIG. 4, the airtight member 17 attached to the door panel 8, when the holding member 6 is interposed, comes into contact with the side frame 4 of the three-sided frame 3, for example, one end having a square shape. The other end has a convex portion having the same shape as the fitting portion of the holding material 6 for fitting into the holding material 6.

Further, one end of the holding member 6 has a concave portion having the same shape as the fitting portion of the airtight member 17, and the other end is inserted into and fixed to the elastic member 10 fixed to the door panel. And a base 6a.

The elastic member 10 has a substantially L-shaped cross section, one side is fixed to the back surface of the door panel 8 and the folded portion with the rivet 11 or an adhesive, and the other side is the end portion of the door panel 8 on the door pocket side. The elastic portion is applied so as to be pressed against each other, and the sandwiching portion 10a is configured.

When the airtight member 17 is attached to the door panel 8 via the holding member 6, first, as shown in FIG. 4, the convex portion of the airtight member 17 is inserted into the concave portion of the holding member 6. The base portion 6a of the holding member 6 is inserted into the pinching portion 10a of the elastic member 10 to be pinched.

Thus, when the airtight material 17 has a low hardness and is soft, the airtight material 17 may be sandwiched between the elastic member 10 via the holding material 6.

On the other hand, FIG. 5 shows a case where the airtight material 17 has a high hardness and is a hard material. The difference from the case where the elastic member 10 is clamped via a holding material is that the base portion 17a of the airtight material 17 shown in FIG. It is the point which inserts in the clamping part 10a and clamps.

If the airtight member 17 is a hard material, the operation of inserting the base portion 17a of the airtight member 17 into the sandwiching portion 10a of the elastic member 10 can be performed relatively easily.

In this way, the airtight member 17 is troublesome as in the case of using screws and tools by simply inserting the base portion 6a of the holding member 6 or the base portion 17a of the airtight member 17 into the sandwiching portion 10a of the elastic member 10 and sandwiching them. It can be easily and efficiently attached even in a narrow work space without requiring troublesome work. Therefore, especially when the airtight material 17 is attached to the gap between the three-way frame 3 and the door panel 8 on each floor of the high-rise building, the efficiency is further improved.

On the other hand, when the airtight member 17 is removed, the airtight member 17 or the holding member 6 into which the airtight member 17 is inserted may be simply removed from the elastic member 10, which requires troublesome and troublesome work as in the case of using screws and tools. It can be removed easily and efficiently. Therefore, the work can be efficiently performed when the airtight member 17 needs to be replaced. In addition, when the holding material 6 is used, it is only necessary to replace the hermetic material 17, and the holding material can be reused. There is no difference in running costs.

Since both the case where the holding member 6 is interposed and the case where the holding member 6 is not used can be dealt with, the material of the airtight member 17 can be freely selected from a low hardness to a high one depending on the environment and the degree of freedom of design is widened.

As shown in FIG. 3, the elastic member 10 does not necessarily have the same length as the height direction of the door panel 8, and the airtight material 17 or the holding material 6 depends on the strength of the airtight material 17. 17 or the holding material 6 may be partially arranged so as not to be deformed.

In addition, such an airtight member 17 mounting structure can be used not only for the gap between the side frame 4 and the door panel 8 but also for the door panels or between the door panel 8 and the upper frame 5 or between the door panel 8 and the sill 9. It is natural to be.

Embodiment 2 will be described with reference to FIGS. 2, 6, and 7, in which Embodiment 2 is provided with a function for adjusting the allowance for the airtight member 17.

In the description of the second embodiment, the same points as in the first embodiment are omitted, and the differences are mainly described.

FIG. 2 is a rear view of the door panel 8 in FIG. 1 to which the elevator door smoke control device according to the first to third embodiments is attached. The right side of the drawing represents the door pocket side. The door pocket side is the direction in which the door panel opens. An elastic member 10 for attaching an airtight material is attached to the door panel side of the door panel 8 with a fastening material such as a rivet 11 or an adhesive material from the upper part to the lower part of the door panel.

6 and 7 show a cross-sectional structure of a portion along the line AA in FIG. 2, and the door panel 8 provided at the entrance 2 faces the back surface of the three-sided frame 3 when closed, and the side frame 4 A gap G is generated between the folded plate 4 a on the rear side and the surface of the door panel 8.

The airtight member 17 is sandwiched between the elastic members 10 and is elastically attached. The hermetic material 17 has substantially the same length as the door panel 8, and the airtight material 17 abuts against the back folded plate 4 b of the side frame 4 to seal the gap G. By this sealing, the elevator hall 1 side is sealed. And the air flow path between the hoistway on the back side of the door panel 8 are blocked. Note that the gap between the door panel 8 and the upper frame 5 of the three-way frame 3 and the gap between the door contact portions of the door panel 8 are sealed by an airtight material (not shown) attached to the door panel 8 or the upper frame 5.

In FIG. 6, a V-groove 6 b is formed at a desired position in the base portion 6 a of the holding material 6 over the entire length or a part of the holding material 6 in the longitudinal direction.

On the other hand, the tip of the sandwiching portion 10a of the elastic member 10 is bent toward the holding member 6 side.

It is possible to make the airtight member 17 have a desired allowance by fitting the tip of the bent portion 10a of the elastic member 10 into the V groove 6b of the holding member 6.

Further, as a secondary effect, the V-groove 6b of the holding member 6 is caught on the tip of the sandwiching portion 10a of the elastic member 10, and the holding member 6 is difficult to drop off.

Similarly, in FIG. 7, a V-groove 17 b is formed at a desired position in the base portion 17 a of the hermetic material 17 over the entire length or a part of the hermetic material 17 in the longitudinal direction.

On the other hand, the tip of the sandwiching portion 10a of the elastic member 10 is bent toward the airtight member 17 side.

It is possible to make the airtight member 17 have a desired allowance by fitting the front end of the bent portion 10a of the elastic member 10 into the V groove 17b of the airtight member 17.

Further, as a secondary effect, the V-groove 17b of the airtight member 17 is caught on the tip of the sandwiching portion 10a of the elastic member 10, and the airtight member 17 is difficult to drop off.

In this way, the airtight member 17 is troublesome as in the case of using screws and tools by simply inserting the base portion 6a of the holding member 6 or the base portion 17a of the airtight member 17 into the sandwiching portion 10a of the elastic member 10 and sandwiching them. It can be easily and efficiently installed even in a narrow work space without requiring troublesome work. Therefore, especially when the airtight material 17 is attached to the gap between the three-way frame 3 and the door panel 8 on each floor of the high-rise building, the efficiency is further improved. As described above, in addition to the effects of the first embodiment, the airtight member 17 can be installed with the optimum allowance without adjusting the allowance of the airtight member 17, and the working efficiency is further improved.

In the second embodiment, instead of the tip of the sandwiching portion 10a of the elastic member 10, the portion of the sandwiching portion 10a of FIG. 4 or FIG. 5 that is bent into a U shape is the V groove 6b or the airtight portion of the holding member 6. The same effect can be obtained by fitting the material 17 into the V groove 17b.

The third embodiment will be described with reference to FIGS. 2 and 8 to 11, in which the third embodiment is different from the second embodiment in which a function for adjusting the allowance for the airtight member 17 is added to the first embodiment.

In the description of the third embodiment, the same points as in the first embodiment are omitted, and the differences are mainly described.

FIG. 2 is a rear view of the door panel 8 in FIG. 1 to which the elevator door smoke control device according to the first to third embodiments is attached. The right side of the drawing represents the door pocket side. The door pocket side is the direction in which the door panel opens. An elastic member 10 for attaching an airtight material is attached to the door panel side of the door panel 8 with a fastening material such as a rivet 11 or an adhesive material from the upper part to the lower part of the door panel.

8 and 10 show a cross-sectional structure of a portion along the line AA in FIG. 2, and the door panel 8 provided at the entrance 2 faces the back of the three-sided frame 3 when closed, and the side frame 4 A gap G is generated between the folded plate 4 a on the rear side and the surface of the door panel 8.

The airtight member 17 is sandwiched between the elastic members 10 and is elastically attached. The hermetic material 17 has substantially the same length as the door panel 8, and the airtight material 17 abuts against the back folded plate 4 b of the side frame 4 to seal the gap G. By this sealing, the elevator hall 1 side is sealed. And the air flow path between the hoistway on the back side of the door panel 8 are blocked. Note that the gap between the door panel 8 and the upper frame 5 of the three-way frame 3 and the gap between the door contact portions of the door panel 8 are sealed by an airtight material (not shown) attached to the door panel 8 or the upper frame 5.

In FIG. 8, the base 6 a of the holding material 6 has a through hole or a recess 6 c formed at a desired position in at least one place of the holding material 6.

On the other hand, a convex portion 13 is formed on the side of the elastic member 10 that contacts the holding member 6 by embossing or the like.

The convex portion 13 of the elastic member 10 can be fitted into the through hole or the concave portion 6c of the holding member 6 so that the airtight member 17 can have a desired allowance.

Further, as a secondary effect, the convex portion 13 of the elastic member 10 is caught in the through hole or the concave portion 6 c of the holding material 6, and the holding material 6 is difficult to drop off.

FIG. 9 is a perspective view of the upper end portion of the door panel 8 when the airtight member 17 is attached via the holding member 6 in the third embodiment.

Similarly, in FIG. 10, a through hole or a recess 17 c is formed in a base 17 a of the hermetic material 17 at a desired position in at least one location of the hermetic material 17.

On the other hand, a convex portion 13 is formed on the side of the elastic member 10 in contact with the airtight member 17 by embossing or the like.

The convex portion 13 of the elastic member 10 can be fitted into the through hole or the concave portion 17c of the hermetic material 17 so that the hermetic material 17 has a desired allowance.

Further, as a secondary effect, the convex portion 13 of the elastic member 10 is caught in the through hole or the concave portion 17c of the hermetic material 17, and the hermetic material 17 is difficult to fall off.

In this way, the airtight member 17 is troublesome as in the case of using screws and tools by simply inserting the base portion 6a of the holding member 6 or the base portion 17a of the airtight member 17 into the sandwiching portion 10a of the elastic member 10 and sandwiching them. It can be easily and efficiently installed even in a narrow work space without requiring troublesome work. Therefore, especially when the airtight material 17 is attached to the gap between the three-way frame 3 and the door panel 8 on each floor of the high-rise building, the efficiency is further improved. As described above, in addition to the effects of the first embodiment, the airtight member 17 can be installed with the optimum allowance without adjusting the allowance for the airtight member 17, and the working efficiency is further improved.

FIG. 11 is a perspective view of the upper end portion of the door panel 8 when the airtight member 17 is attached without using the holding member 6 in the third embodiment.

The fourth embodiment is an example in which a pressing mechanism is added to the elastic member 10 of the first to third embodiments. A fourth embodiment will be described with reference to FIGS. 15A and 15B.

FIGS. 15A and 15B are cross-sectional structures of the elevator door according to the fourth embodiment, corresponding to the cross-sectional structure of the portion along the line AA in FIG.

The elastic member 10 has a substantially L-shaped cross section, one side is fixed to the back surface of the door panel 8 and the folded portion with a rivet 11 or an adhesive, and the other side is a door-side end of the door panel 8. It is attached with a desired gap.

One side of the angle 27 is fixed to the outside of the elastic member 10 together with the rivet 11 fixing the elastic member 10 or fixed with an adhesive or the like. Is fixed with an adhesive or the like.

The hinge 28 is, for example, a flat hinge.

The side a of the L-shaped knob 29 is fixed to the other side of the hinge 28 with an adhesive or the like, and the side b of the knob 29 is on the door pocket side and inside the tower as shown in FIG. Arrange to stand up.

The airtight member 17 shown in FIG. 15A is fitted into the holding member 6, and the holding member 6 is inserted into the gap between the elastic member 10 and the door panel 8.

As shown in FIG. 15B, by rotating the knob 29 tightened by a two-dot chain line counterclockwise via the hinge 28, one end of the knob 29 causes the elastic member 10 to move. The elastic member 10 is pressed against the holding member 6 and the holding member 6 fitted with the airtight member 17 is fixed to the door panel 8.

The holding member 6 can be reliably fixed by pressing the elastic member 10 toward the holding member 6 with the knob 29.

Although not shown, the hinge 28 may be always biased counterclockwise with respect to the knob 29 by using a spring hinge or the like. It is possible to prevent the holding member 6 from falling off by applying a force in a direction of pressing the elastic member 10 to the knob 29 by a spring hinge and rotating the knob 29 clockwise by an impact or the like. . The spring hinge is a well-known technique in which a spring is incorporated in a flat hinge and biased in a direction in which the flat hinge closes or opens.

On the contrary, when removing the holding material 6 fitted with the airtight material 17, first, the knob 29 is rotated clockwise to remove the pressing force, and then the holding material 6 is removed.

FIG. 15 shows the case where the airtight member 17 is fitted into the holding member 6. However, the elastic member 10 is directly inserted into the gap between the elastic member 10 and the door panel 8 without using the holding member. May be.

As shown in FIG. 3, the elastic member 10, the angle 27, the hinge 28, and the knob 29 do not necessarily have the same length as the height direction of the door panel 8; Depending on the strength of the holding material 6, the airtight material 17 or the holding material 6 may be partially arranged so as not to be deformed.

In addition, such an airtight member 17 mounting structure can be used not only for the gap between the side frame 4 and the door panel 8 but also for the door panels or between the door panel 8 and the upper frame 5 or between the door panel 8 and the sill 9. It is natural to be.

The fifth embodiment is an example in which a pressing mechanism different from the fourth embodiment is added to the elastic member 10 of the first to third embodiments. A fifth embodiment will be described with reference to FIGS. 16 (A) and 16 (B).

FIGS. 16A and 16B are cross-sectional structures of the elevator door according to the fifth embodiment, corresponding to the cross-sectional structure of the portion along the line AA in FIG.

The elastic member 10 has a substantially L-shaped cross section, one side is fixed to the back surface of the door panel 8 and the folded portion with a rivet 11 or an adhesive, and the other side is a door-side end of the door panel 8. It is attached with a desired gap.

One side of the angle 27 is fixed to the outside of the elastic member 10 together with the rivet 11 fixing the elastic member 10 or fixed with an adhesive or the like. Is fixed with an adhesive or the like.

The hinge 28 is, for example, a flat hinge.

The side a of the L-shaped knob 29 is fixed to the other side of the hinge 28 with an adhesive or the like, and the side b of the knob 29 is on the door pocket side and the landing side as shown in FIG. Arrange to stand up.

The hermetic material 17 shown in FIG. 16A is fitted into the holding material 6, and the holding material 6 is inserted into the gap between the elastic member 10 and the door panel 8.

As shown in FIG. 16B, the knob 29 clamped by the two-dot chain line is rotated clockwise through the hinge 28, so that one end of the knob 29 holds down the elastic member 10. The elastic member 10 is brought into pressure contact with the holding member 6, and the holding member 6 fitted with the airtight member 17 is fixed to the door panel 8.

The holding member 6 can be reliably fixed by pressing the elastic member 10 toward the holding member 6 with the knob 29.

Although not shown, the hinge 28 may always be urged to rotate clockwise with respect to the knob 29 by using a spring hinge or the like. It is possible to prevent the holding member 6 from falling off by applying a force in a direction of pressing the elastic member 10 to the knob 29 by a spring hinge and rotating the knob 29 counterclockwise by an impact or the like. is there. The spring hinge is a well-known technique in which a spring is incorporated in a flat hinge and biased in a direction in which the flat hinge closes or opens.

Conversely, when removing the holding material 6 fitted with the airtight material 17, first, the knob 29 is rotated counterclockwise to remove the pressing force, and then the holding material 6 is removed.

FIG. 16 shows the case where the airtight member 17 is fitted into the holding member 6, but the elastic member 10 is directly inserted into the gap between the elastic member 10 and the door panel 8 without using the holding member. May be.

As shown in FIG. 3, the elastic member 10, the angle 27, the hinge 28, and the knob 29 do not necessarily have the same length as the height direction of the door panel 8; Depending on the strength of the holding material 6, the airtight material 17 or the holding material 6 may be partially arranged so as not to be deformed.

In addition, such an airtight member 17 mounting structure can be used not only for the gap between the side frame 4 and the door panel 8 but also for the door panels or between the door panel 8 and the upper frame 5 or between the door panel 8 and the sill 9. It is natural to be.

Each embodiment has been described with respect to a double door, but the present invention can be similarly applied to a single door.

In each embodiment, the holding material or the airtight material may be fixed together with at least one screw to prevent the holding material or the airtight material from falling off.

The present invention can be applied to door devices that require smoke shielding performance other than elevators.

The holding material of each embodiment may be a resin injection molded product or a resin extrusion material.

DESCRIPTION OF SYMBOLS 1 Elevator hall 2 Entrance / exit 3 Three-way frame 4 Side frame 4a Folding plate 4b Folding plate 5 Upper frame 6 Holding material 6a Base part 6b V groove 6c Through hole or recessed part 7 Mounting screw 8 Door panel 9 Sill 10 Elastic member 10a Clip part 11 Rivet 12b Folding Plate 13 Convex part 17 Airtight material 17a Base part 17b V groove 17c Through hole or concave part 18 Fastener 22 Base part 23 Sealing part 25 Clamping part 26 Holding part 27 Angle 28 Hinge 29 Knob a, b Side G Gap

Claims (13)

A three-way frame provided in a boarding / exiting part between an elevator hall and a hoistway of a building, a door panel that is arranged to be movable in the left-right direction facing the three-way frame, and opens and closes the boarding / exiting part by the movement; An airtight member made of an elastic body that is attached to at least one of the three-way frame and the door panel and seals a gap between the three-way frame and the door panel by contacting the door panel or the three-way frame; An elastic member for attaching to at least one of a frame and the door panel, the elastic member having a pinch portion that is elastically expandable, and is fixed to at least one of the three-way frame and the door panel; The airtight member mounting holding member to which the airtight material is attached is elastically sandwiched between the three-side frame and the door panel. Saegikemuri device for an elevator door, characterized by comprising removably attached towards. A three-way frame provided in a boarding / exiting part between an elevator hall and a hoistway of a building, a door panel that is arranged to be movable in the left-right direction facing the three-way frame, and opens and closes the boarding / exiting part by the movement; An airtight material made of an elastic body attached to at least one of the three-way frame and the door panel, and sealing the gap between the three-way frame and the door panel by contacting the door panel or the three-way frame, and the airtight material An elastic member for attaching to at least one of a three-way frame and the door panel is provided, the elastic member is fixed to at least one of the three-way frame and the door panel, and the elastic member is the three-way frame to which the elastic member is attached or A gap is formed between the door panel, and the base of the airtight material mounting holding material to which the airtight material is attached is inserted into the gap, The elastic member is pressed against the base of the airtight material attaching holding member and elastically sandwiched and held, and the airtight material is detachably attached to at least one of the three-way frame and the door panel. Elevator door smoke shielding device. The smoke-preventing device for an elevator door according to claim 1 or 2 , wherein the elastic member is a leaf spring. 3. The elevator according to claim 2 , wherein the elastic member is urged by the elastic member in a direction in which the elastic member is pressed against the base of the airtight member or the base of the airtight member attaching holding member. Door smoke barrier. The smoke shielding device for an elevator door according to claim 4 , wherein the elastic material is a spring. The elevator door smoke shielding device according to any one of claims 1 to 5 , wherein the airtight material mounting holding material is an extruded material. The smoke shielding device for an elevator door according to any one of claims 1 to 6 , wherein a gap between the three-way frame and the door panel is a gap between a side frame and the door panel. The smoke shielding device for an elevator door according to any one of claims 1 to 6 , wherein a gap between the three-way frame and the door panel is a gap between an upper frame and the door panel. Saegikemuri device for an elevator door according to any one of claims 1 to 8, wherein a part of said elastic member is fitted to a portion of the gas-tight material attached holding member. Some of the elastic member is a tip of the elastic body, to claim 9 in which a portion of the airtight member mounting the holding member is characterized by a groove formed in the base of the gas-tight material attached holding member The elevator door smoke-prevention device described. And wherein the portion of said elastic member is a shaped portion of the wanted elastic body bent, part of the airtight member mounting the holding member is a groove formed in the base of the gas-tight material attached holding member The smoke shielding device for an elevator door according to claim 9 . Wherein a portion of the elastic member is convex portion by embossing of the elastic body, wherein a portion of the airtight member mounting the holding member is a hole or recess provided in the base of the gas-tight material attached holding member The smoke shielding device for an elevator door according to claim 9 . The elevator door smoke shielding device according to any one of claims 1 to 12 , wherein the airtight member mounting holding member is fixed by a screw together with fixing by the elastic member.

Images