JP4245393B2 - Elevator disaster prevention equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disaster prevention device for an elevator which operates to prevent smoke and flame when a fire occurs and minimizes the damage of the fire.
[0002]
[Prior art]
An elevator boarding / exit opening leading to the elevator hoistway is provided on the wall surface of the elevator hall. Generally, this entrance / exit has a gate-shaped three-sided frame, and a holder for opening / closing the entrance / exit is provided on the back side of the three-sided frame, and the entrance / exit is normally closed by this holder.
[0003]
The holder is provided with a hanger at the top, and a plurality of rotatable rollers are provided on the hanger. A header case is provided in the hoistway, and a rail extending in the horizontal direction is attached to the header case. The rollers are engaged and placed on the rail, and the holder is suspended below the rail.
[0004]
A sill is provided at the lower part of the entrance and exit, almost flush with the floor of the hall, and the lower part of the holder is movably fitted on this sill, and the holder moves left and right along this sill. To do.
[0005]
A certain amount of clearance is provided between the hold door and the three-way frame or sill so that the hold door can operate smoothly. For this reason, if a fire occurs in the building, the entrance / exit is closed with the hold door. However, smoke from the fire flows into the hoistway through the gap between the holder and the three-sided frame or sill, and the hoistway becomes a chimney and the fire may spread.
[0006]
In addition, in an elevator car traveling in a hoistway, if there is a gap between the car doorway and the car door, smoke from the fire flows into the car through the gap, and the passengers in the car There is a risk of danger.
[0007]
Therefore, conventionally, packing is provided on the upper side and both sides of the back side of the three-sided frame, and when the door is closed, the door is pressed against the packing to suppress the inflow of smoke into the hoistway. Packing is provided on the upper and both sides of the rear side of the doorway, and when the car door is closed, the car door is pressed against the packing to suppress the inflow of smoke into the car.
[0008]
[Problems to be solved by the invention]
However, in such a conventional configuration, the elasticity of the packing is low, and if the door is too strongly pressed against the packing, the door may be incompletely closed. If the pressure contact with the door is too weak, it will not be possible to obtain a sufficient smoke-shielding effect, which necessitates strict control over the packing, and the packing is deteriorated relatively quickly because the door is repeatedly pressed against the packing. However, regular adjustment is required.
In addition, packing may be provided in the gap between the hold door and the three-sided frame or sill, or packing may be provided in the gap between the car doorway and the car door to enhance the smoke shielding and flameproofing effect. In this case, the opening and closing operation of the door is hindered by friction with the packing, and the packing deteriorates relatively early due to the friction, and the replacement must be performed frequently. In order to avoid this, it is necessary to secure a certain gap between the packing and the door, and it becomes difficult to obtain a sufficient smoke shielding effect.
The present invention has been made paying attention to such points, and the object of the present invention is to allow the door to be opened and closed smoothly and properly in normal times without requiring troublesome adjustment and replacement, and fire. An object of the present invention is to provide a disaster prevention device for an elevator that can appropriately suppress the inflow of smoke into a hoistway or a car according to the occurrence of the occurrence.
[0009]
[Means for Solving the Problems]
The present invention relates to a hold door provided at an elevator entrance / exit of an elevator hall, a hold door proximity member disposed around the hold door with a gap therebetween, and the hold door or the hole. A closing device that is provided on any one of the door proximity members and that operates in the event of a fire to close the gap; An operation for opening a car door by a passenger in the car in a state where an elevator car is landed on the floor of the elevator boarding door and the closing device is operated by the occurrence of a fire and the gap is closed. Release means for temporarily releasing the closing of the gap by the closing device based on the signal when the button is operated It is characterized by comprising.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows a first embodiment. 1A is a cross-sectional view of the elevator entrance 1 as viewed from above, FIG. 1B is a front view of the entrance 1 as viewed from the elevator hall, and FIG. 1C is a cross-section of the entrance 1 as viewed from the side. FIG.
[0012]
The entrance / exit 1 includes a three-way frame 2 as a hold door proximity member. The three-way frame 2 includes a pair of standing frames 3 arranged on the left and right sides, and a horizontal frame 4 installed between upper ends of the standing frames 3. A pair of hold doors 5 of, for example, a double opening type are provided on the back side of the three-way frame 2.
[0013]
Each holder 5 is suspended at the upper part of the back side of the three-way frame 2 via a hanger roller (not shown), and opens and closes the entrance 1 by moving left and right via the hanger roller. ing.
[0014]
A sill 8 serving as a holder proximity member extending horizontally to the left and right sides is attached to the lower part on the back side of the three-way frame 2. The sill 8 is substantially flush with the floor of the elevator hall, and a guide groove 9 extending along the longitudinal direction is formed on the top surface.
[0015]
As shown in FIG. 1 (C), each holder 5 has a plurality of guide shoes 10 at the lower end surface, and these guide shoes 10 are slidably fitted into the guide grooves 9 of the sill 8 to form holes. When the door 5 is opened and closed, the opening and closing operation thereof is guided by the guide shoe 10 and the guide groove 9.
[0016]
A gap G is provided between the front surface of each holder 5 and the back surface of the three-way frame 2, and between the lower end portion of each holder 5 and the sill 8.
[0017]
In each gap G, bimetals 15a, 15b, and 15c are provided as a closing device, in which two kinds of metal pieces having different thermal expansion coefficients are bonded together. That is, as shown in FIG. 1 (A), the gap G between the back surface of the standing frame 3 of the three-way frame 2 and each holder 5, and as shown in FIG. 1 (C), the horizontal frame 4 of the three-way frame 2 Bimetals 15 a, 15 b, and 15 c are provided in the gaps G between the rear surfaces of the respective doors 5 and the respective holders 5 and the gaps G between the respective holders 5 and the sill 8.
[0018]
As shown in FIG. 2, these bimetals 15a, 15b, and 15c are in the form of a long plate having a length extending over the entire length of the gap G in the longitudinal direction, and one side of the bimetal 15a is the back surface of the upright frame 3 in the bimetal 15a. The bimetal 15b is fixed to the back of the horizontal frame 4, and the bimetal 15c is fixed to the lower back of the hold door 5.
[0019]
And one side part on the opposite side of the fixed part of each bimetal 15a, 15b, 15c becomes the heat responsive deformation | transformation part 16 which deform | transforms according to heat, and each deformation | transformation in bimetal 15a, 15b according to the deformation | transformation operation | movement. The parts 16 come into contact with the front surface of the hold door 5 to close the gap G, and in the bimetal 15c, the deformed part 16 comes into contact with the back surface of the sill 8 to close the gap G.
[0020]
The building where the elevator is installed is provided with a fire detector that detects smoke and heat in the event of a fire and notifies the occurrence of the fire. The bimetals 15a, 15b and 15c are shown in FIG. Each of the bimetals 15a, 15b, and 15c is energized by the control circuit device 26 in response to a signal when the fire detector 25 detects a fire, and is connected to the fire detector 25 via the control circuit device 26. The deforming portion 16 of each bimetal 15a, 15b, 15c is deformed by self-heating due to the electric resistance of the bimetal 15a, 15b, 15c.
[0021]
Under normal conditions, the deformed portion 16 of the bimetal 15a, 15b remains flat and does not come into contact with the holder 5, and the bimetal 15c does not come into contact with the sill 8 due to the deformed portion 16 being curved. Is opened and closed smoothly without being hindered by the bimetals 15a, 15b and 15c.
[0022]
When a fire occurs, the bimetals 15a, 15b, and 15c are energized based on a signal from the fire detector 25, and the deforming portions 16 are deformed. In the bimetals 15a and 15b, the deforming portion 16 is held. 5, the deformed portion 16 of the bimetal 15c comes into contact with the back surface of the sill 8, whereby the gap G between the three-way frame 2 and each holder 5, and each holder 5 and sill 8 The gaps G between the two are closed. That is, the gap between the entrance 1 and each holder 5 is closed.
[0023]
Therefore, the inflow of smoke from the elevator hall side into the hoistway is suppressed, the hoistway does not become a chimney, and therefore, it is possible to prevent the spread of fire and the smoke to the floors of other floors. Diffusion can be prevented.
[0024]
The bimetals 15a, 15b, and 15c operate when the fire detector 25 detects a fire to close the gaps G. However, when the heat of the fire reaches the bimetals 15a, 15b, and 15c, the fire detectors. Regardless of the signal from 25, the deformed portion 16 of each bimetal 15a, 15b, 15c is deformed by the heat of the fire, and each gap G is closed. Therefore, the closed state of each gap G can be maintained as it is even if the fire detector 25 is burned out due to the spread of fire.
[0025]
When the fire is extinguished and becomes a normal state, the deformed portions 16 of the bimetals 15a, 15b, and 15c return to their original shapes, the gaps G are opened, the bimetals 15a, 15b, and 15c, the hold door 5 and the sill. 8 is in a non-contact state, and the hold door 5 can be smoothly opened and closed without being obstructed by the bimetals 15a, 15b, and 15c.
[0026]
FIG. 3 shows a second embodiment. In this embodiment, an elastic body 23 made of rubber, resin or the like is attached to the outer periphery of the deformed portion 16 of the bimetal 15.
[0027]
In the case of this embodiment, when the deforming portion 16 is deformed from the broken line state to the solid line state, the deforming portion 16 is elastically brought into close contact with the holder 5, for example, via the elastic body 23. G can be closed more airtightly, and the inflow of smoke into the hoistway can be more reliably suppressed. As the elastic body 23, it is preferable to use a material having heat resistance and incombustibility.
[0028]
FIG. 4 shows a third embodiment. In this embodiment, a pair of bimetals 15a and 15b is provided as a closing device in the gap G, and the gap G is closed by the operation of both of the bimetals 15a and 15b. It is like that.
[0029]
That is, for example, one side portion of one bimetal 15a is fixed to the back surface of the three-way frame 2, and one side portion of the other bimetal 15b is fixed to the front surface of the hold door 5, and both of the bimetals 15a and 15b are fixed in the event of a fire. The deforming portions 16 are deformed from the broken line state to the solid line state to contact each other, thereby closing the gap G and suppressing the inflow of smoke into the hoistway.
[0030]
In this case, the stroke width of the deformation operation of the deformation portion 16 in each of the bimetals 15a and 15b can be reduced, so that the operation time can be shortened and the gap G can be closed quickly.
[0031]
5 and 6 show a fourth embodiment. This embodiment is an example in which the gap G between the hold door 5 and the sill 8 is closed. A bimetal 15 as a closing device is attached across the guide shoe 10.
[0032]
The bimetal 15 has substantially the same length as the width of the holder 5, the upper side is fixed to the guide shoe 10, and the lower thermally responsive deformation portion 16 is the inner surface of the guide groove 9 in the sill 8. It arrange | positions so that it may oppose.
[0033]
In this case, the bimetal 15 as a whole is normally flat and does not contact the inner surface of the guide groove 9, so that the holder 5 can be opened and closed smoothly.
[0034]
In the event of a fire, the bimetal 15 is energized in response to the detection of the fire by the fire detector, and the deformed portion 16 of the bimetal 15 is deformed by the self-heating due to its electrical resistance and contacts the inner surface of the guide groove 9. Thus, the gap G between the hold door 5 and the sill 8 is closed, and the outflow of smoke from the elevator hall into the hoistway is suppressed.
[0035]
FIG. 7 shows a fifth embodiment. This embodiment is an example applied to the single-draw type hold doors 5a and 5b. In this case, the hold doors 5a and 5b are both held doors 5a at the time of opening and closing. , 5b move in the same direction at different speeds to open and close the entrance.
[0036]
When the door is closed, the end of one holder 5a and the end of the other holder 5b overlap each other in front and back, and a gap G is formed between the ends. May flow into the hoistway.
[0037]
Therefore, in this case, a bimetal 15 as a closing device is provided for the gap G. The bimetal 15 has substantially the same length as the vertical dimensions of the holders 5a and 5b, one side of which is fixed to the end face of one holder 5a, and the opposite thermally responsive deformation part 16 is provided in the other hole. It arrange | positions so that the back surface of the door 5b may be opposed.
[0038]
In a normal state, the deformed portion 16 of the bimetal 15 is separated from the holder 5b and kept in a non-contact state as indicated by a broken line. Therefore, the holder 5 opens and closes smoothly without being blocked by the bimetal 15.
[0039]
In the event of a fire, the bimetal 15 is energized in response to the detection of the fire by the fire detector, and the deformed portion 16 of the bimetal 15 is deformed toward the hold door 5b by self-heating due to its electrical resistance, and contacts the back surface. With this contact, the gap G between the hold doors 5a and 5b is closed, and the outflow of smoke from the elevator hall into the hoistway is suppressed.
[0040]
FIG. 8 shows a sixth embodiment. This embodiment is an example applied to the suspension mechanism portion of the hold door 5, and a header case 31 as a hold door proximity member is provided inside the building wall 30. A rail 32 extending in the horizontal direction is attached to the side surface of the header case 31, and a blindfold plate 33 as a holder proximity member is attached between the header case 31 and the horizontal frame 4 of the three-way frame 2. The header case 31 and the blindfold plate 33 have a length longer than the width dimension of the entrance / exit 1 in the lateral direction.
[0041]
A door hanger 35 is attached to the upper end of the hold door 5, and a plurality of rollers 36 (only one is shown) is rotatably attached to the side surface of the door hanger 35, and these rollers 36 roll on the rail 32. The holder 5 is freely mounted and thereby suspended so as to move along the rail 32 when the holder 5 is opened and closed.
[0042]
There is a gap G between the hold door 5 and the blindfold plate 33, and smoke on the elevator hall side may flow out into the hoistway through the gap G when a fire occurs.
[0043]
Therefore, in this case, a bimetal 15 as a closing device is provided for the gap G. The bimetal 15 has substantially the same length as the horizontal dimension of the blindfold plate 33, one side of which is fixed to the blindfold 33, and the opposite thermally responsive deformation portion 16 is the front surface of the hold door 5. It arrange | positions so that it may oppose.
[0044]
In a normal state, the deformed portion 16 of the bimetal 15 is separated from the blindfold 33 as shown by a broken line and is kept in a non-contact state. Therefore, the holder 5 is smoothly opened and closed without being obstructed by the bimetal 15.
[0045]
In the event of a fire, the bimetal 15 is energized in response to the detection of the fire by the fire detector, the deformed portion 16 of the bimetal 15 is deformed toward the blindfold plate 33 by self-heating due to its electrical resistance, and contacts the front surface. By this contact, the gap G between the blindfold 33 and the hold door 5 is closed, and the outflow of smoke from the elevator hall into the hoistway is suppressed.
[0046]
FIG. 9 shows a seventh embodiment, and an elevator car 40 is landed on the floor of the entrance 1. Further, a bimetal 15 similar to that in the first embodiment is provided in the gap G between the three-way frame 2 of the entrance 1 and the holder 5.
[0047]
The car 40 has an entrance / exit 41 on the front surface. The entrance / exit 41 is provided with, for example, a double-open car door 42, and the car door 42 moves left and right along the sill 43 so that the entrance / exit 41 is opened and closed. It has become.
[0048]
An operation panel 44 is provided in the car 40, and a destination floor registration button for registering the destination floor of the car 40 and an opening / closing button for opening and closing the car door 42 are disposed on the operation panel 44.
[0049]
When a fire occurs, the bimetal 15 is energized, and the deformed portion 16 of the bimetal 15 is deformed by the self-heat generation due to its electric resistance and comes into contact with the hold door 5, and the gap G is closed.
[0050]
At this time, passengers in the car 40 landing on the floor of the entrance / exit 1 operate the door open button of the operation panel 44 by the fire notification to open the car door 42 to escape. When the car 40 is on the floor, the car door 42 is engaged with the hold door 5, and the hold door 5 operates integrally with the car door 42.
[0051]
Therefore, when the passenger tries to open the car door 42 by operating the door open button, if the deformed portion 16 of the bimetal 15 is in contact with the hold door 5, the car door 42 is opened due to the resistance caused by the contact. It will be disturbed.
[0052]
Therefore, in the case of this embodiment, the energization to the bimetal 15 is temporarily interrupted via a control circuit device (not shown) by a signal for operating the door opening button.
[0053]
Therefore, when the car door 42 is opened by operating the door open button, the self-heating of the bimetal 15 stops and the temperature decreases, the deforming portion 16 moves slightly in the return direction and leaves the hold door 5, The gap G is temporarily closed. For this reason, the car door 42 and the hold door 5 are opened without being obstructed by the deforming portion 16, and the passenger can safely escape from the car 40.
[0054]
After the passenger has escaped, the car door 42 and the hold door 5 are automatically closed, the bimetal 15 is energized again under the control of the control circuit device, and the deforming portion 16 is deformed by self-heating to hold the door 5 The gap G is closed.
[0055]
By the way, a low friction member may be attached to the deformed portion 16 of the bimetal 15, and the deformable portion 16 may be brought into contact with the holder 5 via the low friction member when the gap G is closed.
[0056]
In this case, since friction between the deformed portion 16 of the bimetal 15 and the front surface of the hold door 5 is reduced, when the door open button is operated, the deformed portion 16 is not moved in the return direction, that is, The hold door 5 can be moved in the opening direction integrally with the car door 42 while the deforming portion 16 is in contact with the hold door 5. Therefore, in this case, a means for controlling the bimetal 15 by the signal of the door open button is not necessary.
[0057]
FIG. 10 shows an eighth embodiment. In this embodiment, a clearance between the door column 47 as a car door proximity member provided on both sides of the door 41 of the car 40 and the car door 42 is shown. Each of G is provided with a bimetal 15 as a closing device.
[0058]
These bimetals 15 have a length that extends over the entire length of the upper and lower sections of the entrance / exit column 47, one side of which is fixed to the end surface of the car door 42, It arrange | positions so that it may oppose the front surface, and the deformation | transformation part 16 of the bimetal 15 is kept in the state spaced apart from the entrance / exit pillar 47 as shown with a broken line at normal time.
[0059]
When a fire occurs, the bimetal 15 is energized in response to the detection of the fire by the fire detector, and the deformed portion 16 of the bimetal 15 is deformed toward the entrance / exit column 47 by self-heating due to its electrical resistance, and contacts the front surface. This contact closes the gap G between the car door 42 and the entrance / exit column 47.
[0060]
In this case, even if smoke flows into the hoistway due to the occurrence of a fire or a fire occurs in the hoistway, the smoke in the hoistway and the car door 42 are moved into the traveling car 40. There will be no inflow from the gap G between the entrance / exit column 47. Then, the traveling car 40 stops at the nearest floor, and the car door 42 opens in response to the stop, so that passengers in the car 40 can evacuate safely.
[0061]
A similar bimetal is a gap between a car door plate (not shown) as a car door proximity member and a car door 42 disposed above the entrance 41 of the car 40, and the car door 42 and its car door. As a car door proximity member which movably supports a clearance between a door suspension member (not shown) as a car door proximity member that suspends 42 movably, or a car door 42 and a lower end portion of the car door 42 It is also possible to provide a gap between the sill 43 and close the gap in the event of a fire to prevent smoke from flowing into the car 40.
[0062]
In each of the above-described bimetals, the deformation operation is performed by energization based on the signal of the fire detector. However, the present invention is not limited to this, and the deformation operation may be performed by the heat at the time of fire occurrence.
[0063]
In the above description, a closing device using a bimetal is taken as an example. However, a closing device using an electromagnetic mechanism can be adopted as shown in FIG. 11 as the ninth embodiment.
[0064]
The closing device shown in FIG. 11 is an example of a closing device that closes the gap G between the standing frame 3 and the holder 5 of the three-way frame 2, and this closing device is attached to the electromagnet 50 and the electromagnet 50. A shielding unit 52 including a shielding plate 51 is provided. The shielding unit 52 is provided at an end of the holder 5, and the shielding plate 51 has a length extending over the entire upper and lower sections of the holder 5.
[0065]
The shielding unit 52 is supported by the holder 5 so as to be movable in a direction in which the shielding unit 52 contacts and separates from the standing frame 3 and is elastically biased in a direction away from the standing frame 3 by a spring 53. Is held in the position.
[0066]
The electromagnet 50 of the shielding unit 52 is energized according to a signal when the fire detector detects a fire, and generates a magnetic force by the energization.
[0067]
In normal times, the shielding unit 52 is kept away from the hold door 5 without coming into contact with the hold door 5. Therefore, the opening and closing operation of the hold door 5 is performed smoothly.
[0068]
When a fire occurs, the electromagnet 50 of the shielding unit 52 is energized based on a signal from the fire detector, and a magnetic force is generated. Since the three-way frame 2 is formed of a magnetic material such as a steel plate, as the magnetic force is generated in the electromagnet 50, the shielding unit 52 is moved against the spring 53 by the attractive force generated by the magnetic force. Contact the vertical frame 3. As a result, the gap G between the hold door 5 and the standing frame 3 is closed by the shielding plate 51 of the shielding unit 52.
[0069]
Therefore, the inflow of smoke from the elevator hall side into the hoistway is suppressed, the hoistway does not become a chimney, and therefore, it is possible to prevent the spread of fire and the smoke to the floors of other floors. Diffusion can be prevented.
[0070]
When the fire is extinguished and the normal state is reached, the energization of the electromagnet 50 is cut off, and accordingly the shielding unit 52 is returned to the original position by the urging force of the spring 53, and the gap G is opened.
[0071]
Such an electromagnetic mechanism type closing device is provided in the gap between the standing frame of the three-way frame and the holder, the gap between the horizontal frame of the three-way frame and the hold, the threshold of the entrance / exit and the hold door. Between the car door and the door suspension member on which the holder is movably suspended, the gap between the car door and the doorway column of the car doorway, and the car door and the car doorway threshold. A clearance between the car door and the curtain of the car doorway, a gap between the car door and a door suspension member on which the car door is movably suspended, and the like can be similarly provided.
[0072]
【The invention's effect】
As described above, according to the present invention, the door can be opened / closed smoothly and properly in normal times without requiring troublesome adjustment and replacement, and in the hoistway or in the car according to the fire in the event of a fire. The smoke inflow can be accurately suppressed, and the damage caused by the fire can be minimized.
[Brief description of the drawings]
1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a sectional view of an elevator entrance / exit viewed from above, FIG. 1B is a front view of the entrance / exit viewed from the elevator hall side, and FIG. Is a cross-sectional view of the entrance / exit as viewed from the side.
FIG. 2 is a perspective view showing an appearance of a bimetal as a closing device.
FIG. 3 is a sectional view showing an example in which an elastic body is attached to a bimetal provided between a holder and a three-way frame according to a second embodiment of the present invention.
FIG. 4 is a sectional view showing an example in which a pair of bimetals is provided between a holder and a three-way frame according to a third embodiment of the present invention.
FIG. 5 is a sectional view showing a bimetal arrangement structure for closing a gap between a hold door and a sill according to a fourth embodiment of the present invention.
FIG. 6 is a front view showing a bimetal arrangement structure for closing a gap between a hold door and a sill according to a fourth embodiment of the present invention.
FIG. 7 is a plan view showing a fifth embodiment of the present invention and showing an example in which a bimetal as a closing device is provided in a one-pull type holder.
FIG. 8 shows a sixth embodiment of the present invention, and is a cross-sectional view showing an example in which a bimetal as a closing device is provided on a door suspension portion in which a holder is movably suspended.
FIG. 9 is a cross-sectional view showing an elevator entrance and exit and a floor on the floor of the entrance and exit according to a seventh embodiment of the present invention.
FIG. 10 is a sectional view showing a bimetal arrangement structure for closing the gap between a car doorway column and a car door according to an eighth embodiment of the present invention.
FIG. 11 is a sectional view showing the structure of an electromagnetic mechanism type closing device according to a ninth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Entrance / exit, 2 ... Three-way frame, 3 ... Standing frame, 4 ... Horizontal frame, 5, 5a, 5b ... Hold door, 8 ... Sill, 9 ... Guide groove, 10 ... Guide shoe, 15, 15a, 15b, 15c ... Bimetal, 31 ... Header case, 32 ... Rail, 33 ... Blindfold, 35 ... Door hanger, 40 ... Car, 41 ... Entrance / exit, 42 ... Car door, 43 ... Sill, 44 ... Control panel, 47 ... Entrance / exit post, 50 ... electromagnet, 51 ... shielding plate, 52 ... shielding unit, 53 ... spring.

Claims (6)

Hold doors at the elevator hall entrance and exit,
A hold door proximity member disposed around the hold door with a gap therebetween;
A closing device that is provided on either the hold door or the hold door proximity member and that operates in the event of a fire to close the gap;
An operation for opening a car door by a passenger in the car in a state where an elevator car is landed on the floor of the elevator boarding door and the closing device is operated by the occurrence of a fire and the gap is closed. Release means for temporarily releasing the closing of the gap by the closing device based on a signal when the button is operated;
An elevator disaster prevention device characterized by comprising:   The hold door proximity member is at least one of a three-way frame provided at an elevator entrance / exit, a sill provided at an elevator entrance / exit, and a door suspension member on which a hold door is movably suspended. Item 2. The elevator disaster prevention device according to item 1. 3. The elevator disaster prevention device according to claim 1, wherein the closing device includes an elastic body for enhancing a sealing property when closing the gap. 4. The closure device disaster prevention device for an elevator according to any one of 3 claims 1, characterized in that an electromagnetic mechanism operating in the bimetal or electromagnetic force, operates by heat. The closing device operates based on a signal of a fire detector provided in a building where an elevator is installed, closes the gap, and automatically returns to the original state after the fire is extinguished. The elevator disaster prevention device according to any one of 1 to 4 . The closure device disaster prevention device for an elevator according to any one of claims 1 to 5, characterized in that it comprises a friction reducing member that reduces the friction between the surface of the gap when closing the gap.

Images