JP2011230932A - Landing device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a landing device of an elevator which suppresses a heat bridge effect by reinforcing bodies in a fire, can suppress the deformation of the door of the elevator, and can suppress an increase in the thickness and weight of a thermal insulation material.SOLUTION: The landing device of an elevator includes an elevator landing door front plate 3a, an elevator landing door rear plate 3c which is mounted on the landing door front plate 3a to be opposed with a space to the landing door front plate 3a, and a heat transfer suppressing means for suppressing a heat transfer from the landing door front plate 3a to the landing door rear plate 3c.

Description

  The present invention relates to an elevator hall device that prevents a fire from spreading through an elevator hoistway during a building fire or the like.

In a conventional elevator hall device, a landing door is provided with heat insulation properties in order to prevent a fire generated on the hall side from spreading to the hoistway side.
In order to improve the heat insulation of the landing door, there is one in which a heat insulating material is inserted into the landing door. (For example, patent document 1).
It also includes an adhesive that bonds the reinforcing material to the door panel of the landing door, and a thermal expansion material disposed between the door panel and the reinforcing material, and the thermal expansion material expands when high heat is applied due to the occurrence of a fire or the like. There is a door panel and a reinforcing material which are separated and separated to prevent the door panel from being deformed due to a difference in thermal expansion coefficient between the door panel and the reinforcing body (for example, Patent Document 2).

JP-T-2002-514701 International Patent Publication WO03 / 016193

  In a conventional elevator hall device, the hall door is provided with reinforcement necessary for rigidity, but there is a problem that the temperature of the back surface rises due to the heat bridge caused by this reinforcement. In addition, due to the temperature difference between the landing door front plate and the back plate during heating, the amount of extension of the landing door front plate and the back plate is different, and there is a problem that the landing door is deformed in a form of restraining each other. This also increases the gap between the landing door and the three-way frame, or between the landing door and the landing door, leading to the problem that the flame easily passes and the fire resistance decreases. Further, when a heat insulating material is inserted into the landing door in response to these problems, there is a problem that the thickness and weight of the door increase.

  The present invention has been made to solve the above-described problems, and can suppress the heat transfer of the elevator door and suppress the deformation of the elevator door during a fire, and increase the thickness and weight of the heat insulating material. It is an object of the present invention to provide an elevator hall device capable of suppressing the above problem.

  In the elevator landing apparatus according to the present invention, an elevator landing door front plate, a landing door front plate, an elevator landing door back plate facing the landing door front plate with a space, and a landing door front plate are provided. Heat transfer suppressing means for suppressing heat transfer from the board to the landing door back plate, and the heat transfer suppressing means is inserted in a stacked manner in the space between the landing door front plate and the landing door back plate. A plurality of heat insulating materials and a reflective sheet having a high reflectivity with respect to the heat radiation sandwiched between the respective gaps.

  According to the present invention, heat transfer of the elevator door can be suppressed, and the thickness and weight of the door can be suppressed.

It is a hoistway longitudinal cross-sectional view which shows the elevator landing apparatus in Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional view which shows the elevator landing apparatus in Embodiment 1 of this invention. It is sectional drawing which shows the detail of the landing door of the elevator landing apparatus in Embodiment 1 of this invention. It is FIG. 1 equivalent figure in Embodiment 2 of this invention. It is a rear view which shows the landing door of the elevator landing apparatus in Embodiment 3 of this invention. FIG. 10 is a view corresponding to FIG. 1 in Embodiment 3 of the present invention. It is FIG. 5 equivalent figure in Embodiment 4 of this invention. FIG. 6 is a view corresponding to FIG. 6 in Embodiment 4 of the present invention. It is FIG. 1 equivalent figure in Embodiment 5 of this invention. It is FIG. 1 equivalent figure in Embodiment 6 of this invention.

Embodiment 1 FIG.
FIG. 1 is a vertical sectional view of a hoistway showing an elevator landing apparatus according to Embodiment 1 of the present invention, FIG. 2 is a transverse sectional view showing an elevator landing apparatus of the present invention, and FIG. 3 is an elevator landing apparatus of the present invention. It is a cross-sectional view which shows the detail of the door of a landing.
In the figure, 1 is an elevator hall, 2 is an elevator hoistway, 3 is an elevator landing door, 4 is a three-way frame vertical frame of the hall, 5 is a three-frame upper frame of the hall, and 6 is a hall threshold. 3a is a landing door front plate made of steel plate forming the front and side surfaces of the landing door 3 on the landing 1 side. Both left and right ends bent toward the hoistway 2 side form the side surface of the landing door 3, and the left and right ends. A barb 3b is provided by bending the tip of the portion inward, whereby the landing door surface plate 3a has a bag shape. Reference numeral 3c denotes a landing door back plate made of a steel plate that forms the back surface of the landing door 3 on the hoistway 2 side, and both left and right ends abut against the barb 3b of the landing door front plate 3a to form a lid of the landing door front plate 3a. is there.
7 is a door-to-door gap that closes the gap between the door contact surfaces of the landing door 3 and the car door (not shown) provided on the landing door front plate 3a, and 8 is a three-way frame vertical frame between the landing door front plate 3a and the landing. 4 is a door pocket, and 9 is an upper slot that closes the gap between the landing door face plate 3a and the upper frame 5 of the landing three-way frame. The gaps between the hall 1 and the hoistway 2 are closed by the gaps 7, 8, and 9, and the fire resistance between the hall 1 and the hoistway 2 is improved. These are the same structures as before.
In FIG. 3, reference numeral 10 denotes a reinforcing material provided at the center of the back surface of the landing door front plate 3 a and extending in the vertical direction to increase the strength of the landing door 3. The reinforcing member 10 is formed by bending a single plate, and the entire vertical direction of the central portion protrudes toward the landing door back plate 3c, and the vertical range of both left and right ends is the back surface of the landing door front plate 3a. Is in contact with
The most characteristic feature of the present invention is the following configuration relating to the reinforcing member 10.
Reference numeral 11 denotes a thermoplastic adhesive (or double-sided tape) that is provided between the left and right ends of the reinforcing material 10 that is in contact with the back surface of the landing door front plate 3a and adheres both of them. Reference numeral 12 denotes a recess recessed in the center of the left and right ends of the reinforcing member 10 over the entire vertical direction, and protrudes toward the landing door 3 side. Reference numeral 13 denotes a thermally expandable foaming agent provided in the inner space of the recess 12. Here, the thermally expandable foaming agent 13 has a foaming temperature higher than the heat resistance temperature of the adhesive (or double-sided tape) 11.

  In the elevator hall device thus configured, the restraint of the thermoplastic adhesive (or double-sided tape) 11 is released by heat in the event of a fire occurring at the hall 1 side, and the hall is expanded by the foaming of the thermally expandable foaming agent 13. The distance between the door surface plate 3a and the reinforcing member 10 is reliably separated over the entire vertical direction, and heat transfer to the hoistway 2 side caused by the heat bridge phenomenon of the reinforcing member 10 can be suppressed.

  Moreover, since heat transfer can be suppressed, a necessary heat insulating material can be reduced, and the thickness and weight of the elevator landing door can be suppressed.

Embodiment 2
FIG. 4 is a view corresponding to FIG. 3 in Embodiment 2 of the present invention. In FIG. 4, the same reference numerals are used for the same or corresponding parts as those in the first embodiment, and the description thereof will be omitted.
In the figure, reference numeral 14 denotes a heat insulating material built in the hall door front plate 3 a so as to be laminated in the thickness direction of the hall door 3. Reference numeral 15 denotes a reflection sheet having a high reflectance with respect to heat radiation, which is a feature of the present invention and is provided in a gap between the laminated heat insulating materials 14. The material of the reflection sheet 15 is, for example, a mixture of alumina silicate and silicate.

  In the elevator hall apparatus configured as described above, direct heat transfer due to the effect of the heat insulating material 14 can be suppressed, and the influence of heat radiation can be suppressed due to the effect of the reflection sheet 15.

  Moreover, since heat transfer can be suppressed, the necessary heat insulating material 14 can be reduced, and the thickness and weight of the elevator hall door can be suppressed.

  In the above configuration, the reflective sheet 15 is provided in the gap between the heat insulating materials 14, but the same effect can be obtained by providing the reflective sheet 15 on the surface of the landing door back plate 3c facing the landing door front plate 3a. Needless to say.

Embodiment 3 FIG.
5 is a rear view showing a landing door of the elevator landing apparatus according to Embodiment 3 of the present invention, and FIG. 6 is a cross-sectional view showing the landing door of the elevator landing apparatus of the present invention. 5 and 6, the same reference numerals are used for the same or corresponding parts as those in the first embodiment, and the description thereof is omitted.
In the figure, 3d is equivalent to the landing door back plate 3c of the first embodiment, and includes a plurality of fin portions 3e projecting toward the left and right sides over the entire vertical direction of both left and right end portions. This is a landing door back plate that is in contact with the barb 3b of the door front plate 3a.

  In the elevator landing apparatus configured as described above, in the event of a fire on the landing 1 side, heat is conducted from the left and right ends of the landing door front plate 3a (side surface of the landing door 3) through the barb 3b to the landing door back plate. Since only the fin portion 3e is brought into contact with the barb 3b, the heat transfer path to the back plate 3d is reduced, the temperature rise on the landing door back plate 3d side is suppressed, and the fire on the landing 1 side spreads to the hoistway 2 side. Can be suppressed.

  Moreover, since heat transfer can be suppressed, the necessary heat insulating material 14 can be reduced, and the thickness and weight of the elevator hall door can be suppressed.

Embodiment 4 FIG.
FIG. 7 is a diagram corresponding to FIG. 5 and FIG. 8 is a diagram corresponding to FIG.
In the figure, 3f is equivalent to the landing door back plate 3c of Embodiment 1, and is a landing door back plate made of expanded metal or punching metal.

  In the elevator landing apparatus configured as described above, it is possible to prevent the entire landing door 3 from being heated by the heat transmitted from the landing door front plate 3a to the landing door back plate 3c during a fire on the landing 1 side. it can.

    Moreover, since the thermal deformation of the landing door 3 can be suppressed, the necessary heat insulating material 14 can be reduced, and the thickness and weight of the landing door of the elevator can be suppressed.

Embodiment 5 FIG.
FIG. 9 is a view corresponding to FIG. 1 of Embodiment 1 in Embodiment 5 of the present invention.
In the figure, the landing door back plate 3c has a coating 16 applied thereto. It is possible to increase the thermal radiation rate of the steel sheet by coating it more than the base (the radiation rate is 0.38 for the steel base and 0.875 for the black lacquered steel). For this reason, by applying the coating to the landing door back plate 3c, it is possible to suppress an increase in temperature of the landing door back plate 3c during a fire on the landing 1 side. Moreover, since heat transfer can be suppressed, the necessary heat insulating material 14 can be reduced, and the thickness and weight of the elevator hall door can be suppressed.

Embodiment 6 FIG.
FIG. 10 is a view corresponding to FIG. 1 of Embodiment 1 according to Embodiment 6 of the present invention. In FIG. 10, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
In the figure, reference numeral 17 denotes a thermoplastic adhesive (or double-sided tape) provided between the barb 3b of the landing door front plate 3a and the door back plate 3c that are in contact with each other.

  In the elevator landing device configured as described above, the thermoplastic adhesive 17 is released from the restriction at the time of the fire on the landing 1 side, and the landing door front plate 3a and the back plate 3c are separated. Due to this, in the event of a fire, the landing door 3 is deformed due to a temperature difference between the landing door front plate 3a and the back plate 3c, a gap is formed in the landing door 3, and the fire spreads from the landing 1 side to the hoistway 2 side. Can be suppressed. Moreover, since heat transfer can be suppressed, the necessary heat insulating material 14 can be reduced, and the thickness and weight of the elevator hall door can be suppressed.

  By the way, in the above-mentioned first to sixth embodiments, the configuration of these elevator hall devices is described as being used only for the landing door 3, but the same is true even if these configurations are provided on the elevator car door side. It goes without saying that the effect of can be obtained.

1 elevator hall,
2 elevator hoistway,
3 landing door,
3a hall door plate,
3b The back of the door cover,
3c, 3d, 3f hall door back plate,
3e fin section,
4 Vertical frame on three sides,
5 horizontal frame,
6 Boarding threshold,
7 Ajaguri per door,
8 Tozai Aiaguri,
9 The upper top
10 Reinforcing material,
11, 17 Adhesive (or double-sided tape)
12 Recess,
13 Thermally expandable foaming agent,
14 Insulation,
15 reflective sheet,
16 Paint.

Claims (6)

The elevator hall door plate,
A landing door back plate of an elevator provided on the landing door front plate and facing the landing door front plate with a space,
Heat transfer suppressing means for suppressing heat transfer from the landing door front plate to the landing door back plate, and
The heat transfer suppressing means includes a plurality of heat insulating materials inserted in a stacked manner in a space between the landing door front plate and the landing door back plate, and reflectance of heat radiation sandwiched between the mutual gaps. An elevator hall device comprising a high reflective sheet.   The elevator board device according to claim 1, wherein the reflection sheet is made of a mixture of alumina silicate and silicate.   2. The elevator landing apparatus according to claim 1, wherein the heat transfer suppression means includes a fin structure formed at a contact portion between the landing door front plate and the landing door back plate.   The elevator hall device according to claim 1, wherein the hall door back plate is made of expanded metal or punching metal, and the hall door back plate forms part of the heat transfer suppressing means.   The elevator hall device according to claim 1, wherein the landing door back plate is coated to increase a heat radiation rate of the landing door back plate, and a part of the heat transfer suppressing means is configured by the coating.   2. The elevator hall according to claim 1, wherein the heat transfer suppression means includes a thermoplastic adhesive provided between a landing door back plate contact portion of the landing door front plate and the landing door back plate. apparatus.

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