JP2008019037A - Elevator entrance device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator entrance device provided with a smoke shutting-off member for blocking an opening on an upper face of a sill groove part non-related to a guide for opening and closing a landing place door in an existing sill. <P>SOLUTION: This elevator entrance device has a jamb 4 having side frames constituting both side fringe parts of an entrance 3 of an elevator, the sill having sill grooves 9a, 9b recessed to open on the upper face, and the landing place door 12 guided by the sill grooves 9a, 9b to open and close the entrance 3 and is provided with a smoke shutting-off structural body for shutting off smoke generated in a clearance among the side frames and the landing place door 12, a clearance between the landing place doors, and a clearance between a lower part of the landing place door and the sill. The sill grooves 9a, 9b have a non-guide part non-related to the guide for opening and closing the landing place door. The smoke shutting-off member 26b is fitted and provided to block an opening in the non-guide part 11b exposed in at least the entrance and is fixed on the sill 8 by a fixing means 28a. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator doorway device in which a smoke shielding member is provided in a portion of a sill groove that is not involved in a guide for opening / closing a landing door in an existing sill of an elevator.

  In the conventional elevator doorway system, the lower smoke shield is made to be approximately the same length as the width of each of the double sliding doors (landing doors), and extends downward from the lower end of each landing door. It is attached to do. And the lower smoke shielding board was inserted in the groove | channel (sill groove) of a sill, and contacted the bottom face of the sill, and the gap between the bottom of a sill and the lower end of a landing door was obstructed. This prevents smoke from flowing between the landing and the hoistway through the gap between the threshold and the lower end of the landing door during a building fire (see, for example, Patent Document 1).

  Moreover, the conventional elevator door sealing device has a horizontal pulling type two-piece sliding door (a landing door). In addition, a sill is provided at the lower part of the three-sided frame (entrance / entrance member) having two side frame parts and an upper frame part disposed between the upper parts of the two side frame parts, and the sill each extends in the frontage direction. Two parallel sill grooves (guide grooves) are formed.

  And each landing door is arrange | positioned in the upper part of a sill groove | channel according to the direction of a sill groove | channel where the width direction differs. A guide shoe is attached to the lower end of the landing door, and the landing door is guided along the length direction of the sill groove by a guide shoe slidably fitted in the sill groove. The inner doorway is opened and closed.

When the landing door is fully closed, each landing door is divided into a door pocket side (opening direction) and a door stop side (closing direction) and closes the doorway.
At this time, the closing direction side edge of the landing door (high speed landing door) arranged on the closing direction side and the opening direction side edge of the landing door (low speed landing door) arranged on the opening direction side are elastic. Is attached to the entire area of the landing door in the height direction. Moreover, the part of the both sides | surfaces of the three-way frame which opposes each of a flexible magnet is a receiving part of a magnetic body.

In addition, a flexible magnet is attached to the edge of the high-speed landing door in the opening direction over the entire area in the height direction of the high-speed landing door. Is provided at the edge of the landing door on the closing direction side.
When the two landing doors are fully closed, each of the flexible magnets and the receiving portion facing the flexible magnets are attracted and brought into close contact with each other, and the close contact between the landing door and the two side frame portions. The gap between the two and the landing doors arranged at different levels are sealed (closed), respectively (see, for example, Patent Document 2).

JP 2005-263448 A JP-A-2005-41637

However, in the above conventional elevator door sealing device, the gap between the landing door and both side frame portions and the gap between the two landing doors are closed, but the bottom of the sill and the lower end of the landing door are closed. No consideration is given to closing the gaps between them.
In view of the above, the lower smoke shielding plate of the conventional elevator doorway device is applied to the lower end of the landing door in the conventional elevator door sealing device for the purpose of smoke shielding, and between the bottom of the sill and the lower end of the landing door It is easy to envisage closing the gap.

  By applying the lower smoke shielding plate of the conventional elevator doorway device, when the landing door in the conventional elevator door sealing device is fully closed, the bottom of the sill located at the lower part of each landing door and the lower end of the landing door The gap is closed. However, for example, of the sill groove that guides the low-speed landing door, the part of the sill groove from the lower end of the low-speed landing door to the closing direction does not participate in the guide, and the sill does not participate in the guide. The groove portion communicates with the sill groove portion located at the lower part of the low-speed landing door. Therefore, smoke that has entered from the opening on the upper surface of the part of the sill groove that does not participate in the guide from the landing side flows out to the hoistway through the part of the sill groove at the lower part of the low-speed landing door, or from the hoistway side to the lower part of the door Since smoke that has entered the sill groove portion flows out to the landing side from the opening on the top surface of the sill groove portion that is not involved in the guide, it is not possible to prevent smoke from flowing between the landing and the hoistway.

  The present invention has been made to solve the above problems, and in the existing sill, there is provided a smoke shielding member for closing the opening on the upper surface of the part of the sill groove not involved in the guide for opening / closing the landing door. The purpose is to obtain an elevator doorway device.

  The elevator doorway apparatus according to the present invention is arranged at the upper frame constituting the upper edge of the elevator doorway, the three-sided frame having the side frames constituting both side edges of the doorway, and the lower part of the three-way frame so as to open to the upper surface. And a landing door that is guided by the sill groove to open and close the entrance and exit, and when the landing door is fully closed, the gap between the side frame and the landing door, between the landing doors In an elevator doorway apparatus provided with a smoke shielding structure that blocks the gap and the gap between the lower part of the landing door and the sill, the sill groove has a non-guide portion that does not participate in the guide for opening and closing the landing door, and The member is fitted to at least a portion of the non-guide portion exposed at the doorway so as to close the opening, and is fixed to the sill by a fixing means.

  Since the opening of the upper surface of the sill groove of the existing sill that does not participate in the opening and closing of the landing door is closed by the smoke member, between the landing and the hoistway through the part of the sill groove that does not participate in the opening and closing of the landing door The smoke distribution channel can be blocked.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a front view of an elevator doorway apparatus according to Embodiment 1 of the present invention as seen from a hoistway side, FIG. 2 is a cross-sectional view taken along arrow II-II in FIG. 1, and FIG. 3 is a cross-sectional view taken along arrow III-III in FIG. 4 is an enlarged cross-sectional view of a portion A in FIG. 3, and FIG. 5 is a perspective view of a smoke shielding member of the elevator doorway apparatus according to Embodiment 1 of the present invention.

1 to 5, the hall 1 is provided with an entrance 3 that opens to the hoistway 2. A sill 8 is fixed to the landing floor 13 below the three-sided frame 4 having the upper frame 5 constituting the upper edge of the doorway 3 and the door pillars 6 and the door pocket pillars 7 as side frames constituting both side edges. Has been. Further, the sill 8 is provided with two sill grooves 9a and 9b which are open on the upper surface and extend in the frontage direction and are parallel to each other.
Here, the threshold groove 9a is arranged on the hoistway 2 side, and the threshold groove 9b is arranged on the landing 1 side.

The entrance / exit 3 is provided with a laterally pulling two-piece door (a landing door 12) that opens and closes the entrance / exit 3.
The two landing doors 12 are composed of a high-speed landing door 12a and a low-speed landing door 12b. The high-speed landing door 12a and the low-speed landing door 12b are aligned with the width direction in the frontage direction, and the upper part of the sill grooves 9a and 9b. Respectively.

  One end of a door hanger 14a, 14b is fastened and fixed to each of the upper ends of the high-speed landing door 12a and the low-speed landing door 12b by bolts (not shown) and nuts (not shown). Further, rollers 15a and 15b are attached to the other ends of the door hangers 14a and 14b so as to be rotatable about a horizontal axis.

  A hanger case 16 is fixed to the wall 19 above the doorway 3, and guide rails 17 a and 17 b extending parallel to the frontage direction are attached to the hanger case 16. The rollers 15a and 15b are movably hung on the guide rails 17a and 17b, and the high-speed landing door 12a and the low-speed landing door 12b are suspended from the guide rails 17a and 17b. The high-speed landing door 12a and the low-speed landing door 12b are guided by the guide rails 17a and 17b and moved in the horizontal direction so that the doorway 3 can be opened and closed.

  When the doorway 3 is fully closed, the high-speed landing door 12a is arranged on the closing direction side (door-holding column 6 side), and the low-speed landing door 12b is arranged on the opening direction side (doorbag column 7 side). The opening direction side of the high-speed landing door 12a and the closing direction side of the low-speed landing door 12b are overlapped in a horizontal direction (depth direction) perpendicular to the frontage direction.

Further, two guide shoes 18 slidably fitted in the sill grooves 9a and 9b are attached so as to protrude from the lower ends of the high-speed landing door 12a and the low-speed landing door 12b.
The lower ends of the high-speed landing door 12a and the low-speed landing door 12b are guided by the guide shoe 18 in the direction along the sill grooves 9a and 9b, respectively, and swinging is suppressed.

Here, in the sill groove 9b, a portion extending in the closing direction from the lower portion of the closing direction side end portion of the low speed landing door 12b and reaching the side of the doorway 6 opposite to the doorway 3 is a low speed landing door 12b. Not involved in opening and closing guides. Similarly, a portion of the sill groove 9a that extends in the closing direction from the lower portion of the end in the closing direction of the high-speed landing door 12a and reaches the counter-entrance 3 side of the door-to-door pillar 6 is the portion of the high-speed landing door 12a. Not involved in opening and closing guides.
Of the sill grooves 9a and 9b, portions that are involved in the guide for opening and closing the high-speed landing door 12a and the low-speed landing door 12b are guide portions 10a and 10b, and portions that are not involved in the guide are non-guide portions 11a and 11b, respectively. .
That is, the sill grooves 9a and 9b are configured by the remaining grooves (non-guide portions 11a and 11b) communicating with the guide portions 10a and 10b and the guide portions 10a and 10b.

A smoke shielding member 26a having a columnar shape with a rectangular cross section and having a length equivalent to that of the non-guide portion 11a of the sill groove 9a extends from the lower portion of the end in the closing direction of the high-speed landing door 12a to the entrance / exit 3 of the door stop column 6. The non-guide portion 11a is fitted into the non-guide portion 11a so as to close the opening of the non-guide portion 11a.
Further, a smoke shielding member 26b having a columnar shape with a rectangular cross section and having a length equivalent to that of the non-guide portion 11b of the sill groove 9b extends from the lower part of the end in the closing direction of the low-speed landing door 12b to the counter-entrance 3 of the door-to-door column 6. In order to reach the side, the non-guide portion 11b is fitted so as to close the opening of the non-guide portion 11b.

  Here, the dimension in the height direction and the dimension in the depth direction of the smoke shielding members 26a and 26b are equivalent to the dimension in the depth direction and the dimension in the depth direction of the sill grooves 9a and 9b, respectively. Therefore, the communication between the guide portions 10a and 10b of the sill grooves 9a and 9b and the non-guide portions 11a and 11b is blocked.

  Further, as shown in FIG. 5, through-holes 27a penetrating in the depth direction of the sill grooves 9a, 9b are formed in the smoke shielding members 26a, 26b at predetermined intervals in the length direction. Further, taps (not shown) corresponding to the through holes 27a are cut at the bottoms of the non-guide portions 11a and 11b. The smoke shielding members 26a and 26b are fastened and fixed to the sill 8 with screws 28a as fixing means penetrating the through hole 27a, and movement of the smoke shielding members 26a and 26b along the sill groove is restricted.

  Further, a plurality of dust dropping holes 25 are provided along the length direction of the sill grooves 9a, 9b at the bottoms of the sill grooves 9a, 9b on the opening direction side from the door stop pillar 6. The dust dropping hole 25 passes through the landing floor 13 below the sill 8, and the sill grooves 9 a and 9 b communicate with the hoistway 2. The dust removal holes 25 formed in the non-guide portions 11a and 11b are also closed by the smoke shielding members 26a and 26b.

  Here, each of the high-speed landing door 12a and the low-speed landing door 12b is formed in a cylindrical shape whose outer periphery is rectangular and whose upper portion is closed, and a landing side wall 21a and a hoistway parallel to the frontage direction. Wall 21b.

Further, under the high-speed landing door 12a and the low-speed landing door 12b, door lower smoke shielding members 22a and 22b disposed adjacent to the guide shoes 18 are provided as the high-speed landing door 12a and the low-speed landing door, respectively. It is being fixed to the inner wall of the hoistway wall 21b via the holding plates 23a and 23b so that it may protrude from the lower end of 12b. The guide shoe 18 is fixed to the inner wall of the hoistway wall 21b via the holding plate 23c.
At this time, the door lower smoke shielding member 22a is disposed at the lower part of both ends of the high speed landing door 12a and the low speed landing door 12b, and the door lower smoke shielding member 22b as a smoke shielding structure is provided on the guide shoe 18. Arranged between.

  In addition, the door lower smoke shielding members 22a and 22b are elastic flame retardant rubber and the like, and are used instead of the lower smoke shielding plate in the conventional elevator doorway device. The door lower smoke shielding members 22a and 22b are disposed so as to be in close contact with the upper surface of the sill 8 on the landing side of the sill grooves 9a and 9b.

  In a conventional elevator doorway device, each of the lower smoke shields inserted in the sill groove (sill groove) is brought into contact with the bottom surface of the sill to close the gap between the bottom of the sill and the lower end of the landing door. However, here, the guide shoe 18 and the door lower smoke-shielding members 22a and 22b are arranged so as to be adjacent to each other, and the gap between each lower portion of the landing door 12 and the upper surface of the sill 8 is blocked.

The holding plates 23a to 23c have bent portions 24a and 24b bent 90 degrees in directions in which both ends of the rectangular flat plate are opposite to each other.
The holding plates 23a to 23c are fixed by screws 20 with the bent portion 24a on one end side aligned with the inner wall of the lower part of the hoistway side wall 21b.
Also, the bent portion 24b on the other end side is disposed below the bent portion 24a on the one end side, and the tip end side thereof is bent at 90 degrees in the direction of the landing side wall 21a, and the end face on the bent side is the landing side wall 21a. It is in contact with the inner wall. Then, the guide shoe 18 and the door lower smoke-shielding members 22a and 22b are attached to the bent portion 24b on the other end side by screws 20 so as to protrude from the lower ends of the high-speed landing door 12a and the low-speed landing door 12b.

Although not shown in detail, the high-speed landing door 12a and the low-speed landing door 12a and the low-speed landing door 12a and the low-speed landing door 12a and the low-speed landing door, which are arranged in a gap between the door-holding pillar 6 and the door-sill pillar 7, respectively. The gaps between 12b and 12b are respectively smoke-shielded by the smoke-shielding structures such as the flexible magnet and the receiving portion.
Moreover, the doorway side of the door-to-door pillar 6 is surrounded by a building wall and the like, and there is no continuous space between the space on the doorway side of the door-to-door pillar 6 and the hall 1.

Next, a method for fitting the smoke shielding members 26a and 26b to the non-guide portions 11a and 11b in the existing sill 8 of the elevator installed in the building for the purpose of smoke shielding will be described.
The existing high-speed landing doors and low-speed landing doors are shielded by using a lower magnet smoke shielding member 22a, 22b or a flexible magnet for shielding smoke between the high-speed landing door and the low-speed landing door. When there is no smoke structure, the high-speed landing door 12a and the low-speed landing door 12b having the smoke-shielding structure are replaced with the existing high-speed landing door and the low-speed landing door from the guide rails 17a and 17b. . In addition, since the high-speed landing door 12a and the low-speed landing door 12b do not need to be replaced when the smoke shielding structure is provided, the high-speed landing door 12a and the low-speed landing door 12b are fully opened. Renovate.

In the non-guide portions 11a and 11b, taps are made at positions corresponding to the through holes 27a of the smoke shielding members 26a and 26b.
Then, one end of the smoke shielding member 26a is inserted into the non-guide portion 11a below the door-to-door pillar 6 from the entrance / exit 3 side, and when the high-speed landing door 12a is fully closed, the other end side of the smoke shielding member 26a is fast. The smoke shielding member 26a is slid so as to be arranged at the lower part of the end in the closing direction of the landing door 12a. At this time, one end side of the smoke shielding member 26 a is disposed on the side of the doorway 6 opposite to the entrance / exit. And the smoke shielding member 26a is fixed to the sill 8 with the screw 28a.

  In addition, when one end side of the smoke shielding member 26b is inserted into the non-guide part below the door stop column 6 from the entrance 3 side, and when the low-speed landing door 12b is fully closed, the other end side of the smoke shielding member 26b is The smoke shielding member 26b is slid so as to be disposed at the lower part of the closing direction side end of the low-speed landing door 12b. At this time, one end side of the smoke shielding member 26b is disposed on the side of the doorway 6 opposite to the entrance / exit. And the smoke shielding member 26b is fixed to the sill 8 with the screw 28a.

  In addition, smoke lowering members 22a and 22b, smoke shielding structures using flexible magnets and receiving parts for shielding smoke between the high speed landing door 12a and the low speed landing door 12b, etc. are provided. By attaching the high-speed landing door 12a and the low-speed landing door 12b again, an elevator doorway apparatus in which the smoke shielding members 26a and 26b are fitted in the non-guide portions 11a and 11b of the sill grooves 9a and 9b, respectively, is obtained. It is done.

In the first embodiment, the columnar smoke shielding members 26a and 26b are fitted to the non-guide portions 11a and 11b so as to close the openings of the non-guide portions 11a and 11b, and are not connected to the guide portions 10a and 10b. The communication with the guide portions 11a and 11b and the opening of the dust dropping hole 25 formed in the non-guide portions 11a and 11b are closed.
Further, the smoke shielding members 26a, 26b can be fitted into the non-guide portions 11a, 11b by simply tapping the bottom of the non-guide portions 11a, 11b in the existing sill 8, and a new sill is provided. Do not need.

Therefore, according to this Embodiment 1, in the elevator which has a non-guide part in the sill grooves 9a and 9b, when a fire occurs in a building, for example, it enters into the non-guide part 11b of the sill groove 9b from the landing 1 side. To prevent the smoke that has flowed out to the hoistway 2 side through the guide portion 10b and the smoke that has flowed into the guide portion 10b from the hoistway 2 side to the landing 1 side through the non-guide portion 11b can do. That is, it is possible to prevent smoke from flowing between the hall 1 and the hoistway 2. Furthermore, even when smoke enters the counter-entrance 3 side of the three-way frame 4, the non-guide portions 11 a and 11 b on the counter-entrance 3 side of the three-side frame 4 and the non-guide portions 11 a and 11 b on the entrance / exit 3 side are Since it is blocked, smoke can be prevented from flowing out to the landing 1 side.
Moreover, since it is not necessary to replace the threshold 8, the distribution of smoke between the landing 1 and the hoistway 2 can be prevented at a low cost.

In the first embodiment, the elevator is described as a horizontal pulling type double door, but the elevator is not limited to a horizontal pulling type double door, for example, a horizontal pulling door. The present invention can be applied to an elevator having a non-guide portion in the sill grooves 9a and 9b, such as a four-door double door.
Further, the smoke shielding members 26a and 26b extend from the lower part of the end in the closing direction of the high-speed landing doors 12a and 12b to the counter-entrance 3 side of the door-to-door pillar 6 and the non-guide parts 11a and 11b. Although described as being fitted to the non-guide portions 11a and 11b so as to close the opening, the smoke shielding members 26a and 26b are not attached to at least the portions of the non-guide portions 11a and 11b exposed at the doorway 3. What is necessary is just to be installed so that the opening of guide part 11a, 11b may be plugged up.

Embodiment 2. FIG.
FIG. 6 is a cross-sectional view of the main part showing the periphery of the smoke shielding member of the elevator doorway apparatus according to Embodiment 2 of the present invention, and FIG. 7 is a perspective view of the smoke shielding member in the elevator doorway apparatus according to Embodiment 2 of the present invention. is there. FIG. 6 is a view corresponding to the cross-sectional view taken along the line III-III in FIG.

In FIG. 6 and FIG. 7, the smoke shielding member 26 c has a columnar lower base 29 having a rectangular cross section and a columnar cover 30 having the same length as that of the lower base 29. Further, the lower base portion 29 and the cover 30 are formed to be equal to the length of the non-guide portion 11b. And the lower base 29 is fitted in the non-guide part 11b, and the cover 30 is further fitted on the upper part of the lower base 29. At this time, the upper surface of the cover 30 is aligned with the upper opening of the non-guide portion 11b. At this time, each of the lower base portion 29 and the cover 30 is fitted into the non-guide portion 11b so as to extend from the lower portion of the closing direction side end portion of the low-speed landing door 12b to the counter entrance 3 side of the door stopper column 6. .
The height of the lower base 29 is about half the depth of the sill grooves 9a, 9b, and the dimension in the depth direction is the same as the dimension of the sill grooves 9a, 9b in the depth direction.

The lower base 29 has a plurality of through holes 27b penetrating in the height direction at predetermined positions in the length direction. Further, a tap 31 is formed on one end side of the lower base 29 in the height direction. A tap (not shown) corresponding to the through hole 27b is cut at the bottom of the non-guide portion 11b.
The lower base portion 29 is fastened and fixed to the non-guide portion 11b of the sill 8 by screwing screws 28b as fixing means penetrating the respective through holes 27b into taps corresponding to the through holes 27b. . Thereby, the movement along the non-guide part 11b of the lower base 29 is restricted. At this time, the head of the screw 28 b protrudes from the upper surface of the lower base 29.

In the cover 30, a notch 30 a having the same shape and the same size as the outer shape of the protruding portion of the screw 28 b is formed over the entire length direction at a position corresponding to the screw 28 b protruding from the lower base portion 29. Further, a through hole 27 c corresponding to the tap 31 of the lower base 29 is formed on one end side of the cover 30.
The cover 30 is fastened and fixed to the lower base 29 by screwing a screw 28c as a fixing means inserted through the through hole 27c into the tap 31, and the cover 30 moves in the direction along the sill groove 9b. Is limited.

Further, although not shown, the smoke shielding member having the same cross-sectional shape as the lower base portion 29 and the cover 30 of the smoke shielding member 26c is a door-to-door pillar from the lower portion of the non-guide portion 11a at the end in the closing direction of the high-speed landing door 12a. 6 is inserted in the part which reaches the opposite entrance side.
Other configurations are the same as those in the first embodiment.

Next, a method for fitting the smoke shielding member 26c will be described.
First, the existing high speed landing door 12a and low speed landing door 12b are removed.
The lower base 29 is fitted into the sill groove 9b in the same procedure as the smoke shielding members 26a and 26b in the first embodiment.

Then, one end side of the cover 30 is inserted into the non-guide portion 11b at the lower part of the door-to-door pillar 6 while being aligned with the portion where the screw 28b is projected into the notch 30a, and is slid in the closing direction, The through holes 27c are aligned with the taps 31 of the lower base 29, and the cover 30 is fastened and fixed to the lower base 29 with screws 28c.
Although not shown, the smoke shielding member is fitted into the non-guide portion 11a in the same manner as the method for fitting the smoke shielding member 26c.
A high-speed smoke-proof structure using a flexible magnet or the like for shielding smoke between the door lower smoke-shielding members 22a and 22b or between the high-speed landing door 12a and the low-speed landing door 12b is provided. By reattaching the landing door 12a and the low-speed landing door 12b, an elevator doorway apparatus having a smoke shielding member fitted in the non-guide portion 11a and a smoke shielding member 26c fitted in the non-guide portion 11b is obtained.

In the second embodiment, the smoke-shielding member 26c and the smoke-shielding member provided in the non-guide portion 11a block the openings of the non-guide portions 11a and 11b, and the guide portions 10a and 10b and the non-guide portion 11a and Communication with 11b and the opening of the dust dropping hole 25 formed in the non-guide portions 11a and 11b are closed. Also, the cover 30 prevents the screw 28b from being seen by elevator users.
Further, the smoke shielding member provided on the smoke shielding member 26c and the non-guide portion 11a can be easily fitted to the non-guide portions 11b and 11a simply by cutting a tap (not shown) at the bottom of the non-guide portions 11a and 11b. Can be set.
Therefore, according to the second embodiment, in addition to the same effect as that of the first embodiment, the effect that the design property is improved can be obtained.

  In the second embodiment, the cover 30 is described as being fastened and fixed to the lower base portion 29 by the screw 28c. However, the cover 30 is not limited to the one that is fastened and fixed to the lower base portion 29. A through hole corresponding to the through hole 27 c of the cover 30 may be formed in the lower base portion 29, and a tap corresponding to the through hole formed in the lower base portion 29 may be provided to fasten and fix the cover 30 to the sill 8.

Embodiment 3 FIG.
FIG. 8 is a cross-sectional view of the main part showing the periphery of the smoke shielding member of the elevator doorway apparatus according to Embodiment 3 of the present invention, and FIG. 9 is a perspective view of the smoke shielding member of the elevator doorway apparatus according to Embodiment 3 of the present invention. 10 is a cross-sectional view taken along the line XX of FIG. 8 is a view corresponding to the cross-sectional view taken along the line III-III in FIG.

  8 to 10, the smoke shielding member 26d has side pieces 32a, 32b, a bottom 32c, and a reinforcing portion 32d, and is formed in a long frame having a U-shaped cross section. The reinforcing portion 32d is formed in a flat plate shape having a dimension corresponding to the inner peripheral shape of the smoke shielding member 26d having a U-shaped cross section. The plurality of reinforcing portions 32d are arranged at predetermined intervals in the length direction so that both front and back surfaces thereof are perpendicular to the length direction of the smoke shielding member 26d, and each of the reinforcing portions 32d includes side pieces 32a, It is fixed to the inner wall of 32d.

The smoke shielding member 26d is fitted in the non-guide portion 11b with the one side piece 32a facing the bottom of the sill groove 9b and the length direction aligned with the length direction of the sill groove 9b. The U-shaped opening in cross section is directed to the hoistway 2 side. The dimension in the depth direction of the side pieces 32a, 32b and the dimension in the height direction of the bottom 32c in the smoke shielding member 26d fitted in the non-guide portion 11b are the same as the depth dimension and the dimension in the depth direction of the sill groove 9b, respectively. It has become.
At this time, the smoke shielding member 26d is fitted to the non-guide portion 11b so as to reach from the lower end of the low-speed landing door 12b to the counter-entrance 3 side of the door stop column 6.
Further, one end side of the smoke shielding member 26d is disposed on the side of the doorway column 6 opposite to the entrance / exit.

Further, a part of the other side piece 32b on one end side of the smoke shielding member 26d is cut off. Further, a through hole 33 is formed in one side piece 32a on one end side of the smoke shielding member 26d, and a tap (not shown) corresponding to the through hole 33 is formed in the bottom of the sill 8, and fixed. One end of the side piece 32a on one side is fixed to the sill 8 with screws 28d as means. Thereby, the movement along the length direction of the threshold groove 9b of the smoke shielding member 26d is restricted.
In addition, although not shown, the smoke shielding member having the same cross-sectional shape as the smoke shielding member 26d and having a length equivalent to the length of the non-guide portion 11a is the closing direction of the high-speed landing door 12a in the non-guide portion 11a. It fits in the part from the lower part of an edge part to the reverse entrance / exit side of the door stop pillar 6, and the one end side (reverse entrance / exit side of the door stop pillar 6) is being fixed with the screw | thread.
Other configurations are the same as those in the first embodiment.

Here, the counter doorway side of the door stop pillar 6 is surrounded by a wall of the building and the like, and there is no continuous gap between the space on the counter doorway side of the door stop pillar 6 and the landing 1.
Since the cross section of the smoke shield member fitted to the smoke shield member 26d and the non-guide portion 11a is U-shaped, the non-guide portions 11a and 11b and the guide portions 10a and 10b in the sill grooves 9a and 9b communicate with each other. is doing. However, since one end side of the smoke shielding member 26d is positioned on the side of the doorway column 6 opposite to the entrance / exit side, smoke may temporarily pass from the guide portions 10a and 10b of the sill grooves 9a and 9b to the non-guide portion 11a. , 11b, the smoke is not led to the landing 1 side even if led to the doorway side of the door-to-door pillar 6.
Further, by providing the reinforcing portion 32d, the smoke shielding member 26d is prevented from being deformed even if a force in a direction perpendicular to the surfaces of the both side pieces 32a and 32d is applied to the smoke shielding member 26d.

Next, a method for fitting the smoke shielding member 26d will be described.
First, the existing high speed landing door 12a and low speed landing door 12b are removed.
And in the non-guide part 11b, a tap is opened to the position corresponding to the through-hole 33 formed in the side piece 32a on one side of the smoke shielding member 26d.
One end side of the smoke shielding member 26d is inserted into the non-guide part 11b below the door stop column 6 from the entrance / exit 3 side, and when the low speed landing door 12b is fully closed, the other end side of the smoke shielding member 26d is low speed. The smoke shielding member 26d is slid so as to be arranged at the lower part of the end in the closing direction of the landing door 12b. Then, the smoke shielding member 26d is fixed to the sill 8 at a position on the side of the doorway column 6 on the one end side by the screw 28d.
The smoke shielding member is fitted in the non-guide portion 11a in the same manner as the smoke shielding member 26d.

  A high-speed smoke-proof structure using a flexible magnet or the like for shielding smoke between the door lower smoke-shielding members 22a and 22b or between the high-speed landing door 12a and the low-speed landing door 12b is provided. By reattaching the landing door 12a and the low-speed landing door 12b, an elevator doorway apparatus having a smoke shielding member fitted to the non-guide portion 11a and a smoke shielding member 26d fitted to the non-guide portion 11b is obtained.

  In the third embodiment, the non-guide portion 11b has a U-shaped smoke shielding member 26d and the U-shaped smoke shielding member provided on the non-guide portion 11a. The opening of the dust dropping hole 25 formed in the guide portions 11a and 11b is closed. In addition, one end side of the smoke shielding member provided in the smoke shielding member 26d and the non-guide portion 11a is disposed up to the doorway side of the door stop column 6, and is fastened and fixed to the sill 8 by a screw 28c. Furthermore, the space between the doorway column 6 on the side of the doorway and the hall 1 is closed.

And the smoke-shielding member provided in the smoke-shielding member 26d and the non-guide portion 11a can be easily fitted into the non-guide portions 11b, 11a simply by tapping the non-guide portions 11a, 11b of the sill grooves 9a, 9b. be able to. Further, since the smoke shielding member 26c is formed in a U-shaped cross section, the material cost can be suppressed as compared with the columnar smoke shielding members 26a to 26d.
Further, the fastening and fixing portion of the smoke shielding member 26d by the screw 28d is on the side of the doorway column 6 opposite to the entrance and exit, and is a position that cannot be seen by the elevator user.
Therefore, according to the third embodiment, in addition to the effects of the first embodiment, the design properties are improved and the elevator doorway device can be obtained at a lower cost.

In the third embodiment, for example, the U-shaped opening of the smoke shielding member 26d is described as being fitted in the non-guide portion 11b toward the hoistway 2 side. May be fitted to the non-guide portion 11b toward the landing 1 side.
Moreover, although the reinforcement part 32d was demonstrated as what is formed in the flat form which has a dimension corresponding to the inner wall of the cross-sectional U shape of the smoke shielding member 26d, the shape of the reinforcement part 32d is limited to a flat form. Instead, for example, a plurality of cylindrical reinforcing portions are arranged at predetermined intervals in the length direction of the smoke shielding member 26d, and both ends of the cylindrical reinforcing portions are fixed to the inner walls of the side pieces 32a and 32b. But you can.

In the first embodiment and the second embodiment, the smoke shielding members 26a and 26b and the lower base 29 are described as being fixed to the plurality of locations of the sill 8 with the screws 28a or 28b. 26b and the lower base 29 are not limited to being fixed to a plurality of locations on the sill 8, and the smoke shielding members 26a, 26b and the lower base 29 are fastened to at least one location of the sill 8 with screws 28a or screws 28b. It only has to be fixed.
Further, in each embodiment, the smoke shielding members 26a to 26d are described as being fastened and fixed to the sill 8 using screws 28a to 28c as fixing means, but the smoke shielding members 26a to 26d are not The guide portions 11a and 11b may be fixed to the sill 8 by press-fitting or adhesive as a fixing means.

  In addition, when the landing door 12 is fully closed, the gap between the door stopper column 6 and the door pocket column 7 (side frame) and the landing door 12, the gap between the landing doors 12, and the gap between the lower portion of the landing door 12 and the sill 8 are blocked. The smoke shielding structure has been described as being composed of a flexible magnet and a receiving part and using the door lower smoke shielding members 22a and 22b. However, the smoke shielding structure is not limited to this. As long as the gap between the side frame and the landing door 12, the gap between the landing doors 12, and the gap between the lower portion of the landing door 12 and the sill 8 are closed.

It is the front view which looked at the elevator doorway apparatus which concerns on Embodiment 1 of this invention from the hoistway side. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. FIG. 4 is an enlarged cross-sectional view of a part A in FIG. 3. It is a perspective view of the smoke-shielding member of the elevator doorway apparatus which concerns on Embodiment 1 of this invention. It is principal part sectional drawing which shows the smoke-shielding member periphery of the elevator doorway apparatus which concerns on Embodiment 2 of this invention. It is a perspective view of the smoke-shielding member in the elevator doorway apparatus which concerns on Embodiment 2 of this invention. It is principal part sectional drawing which shows the smoke shielding member periphery of the elevator doorway apparatus which concerns on Embodiment 3 of this invention. It is a perspective view of the smoke-shielding member in the elevator doorway apparatus which concerns on Embodiment 3 of this invention. It is XX arrow sectional drawing of FIG.

Explanation of symbols

  3 doorway, 4 three-way frame, 5 upper frame, 6 door column (side frame), 7 door column (side frame), 8 sill, 9a, 9b sill groove, 11a, 11b non-guide part, 12 landing door, 28a- 28d Screw (fixing means), 26a to 26d Smoke shielding member.

Claims (2)

An upper frame that constitutes the upper edge of the elevator doorway, a three-sided frame that has side frames that constitute both side edges of the doorway, and a sill that is disposed in the lower part of the three-way frame and is open to the top surface A sill having a groove, and a landing door that is guided by the sill groove and opens and closes the entrance, and when the landing door is fully closed, a gap between the side frame and the landing door, between the landing doors In an elevator doorway apparatus provided with a smoke-shielding structure that shields the gap and the gap between the lower part of the landing door and the sill,
The sill groove has a non-guide portion not involved in the guide for opening and closing the landing door,
An elevator doorway apparatus characterized in that a smoke shielding member is fitted to at least a portion of the non-guide portion exposed at the doorway so as to close the opening, and is fixed to the sill by a fixing means. The landing door is a horizontal pulling type
The side frame is a door stop pillar disposed in the closing direction of the landing door and a door pocket pillar disposed in the opening direction of the landing door,
The smoke shielding member is fitted to the non-guide portion so as to extend to the side of the door-to-door pillar, and is fixed to the sill by the fixing means on the side of the door-to-door pillar. The elevator doorway apparatus according to claim 1, wherein

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