JPS5944484A - Elevator door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator door provided with a window.

First, 1. A conventional elevator door will be explained with reference to FIG.

In the figure, (1) is made of a steel plate with the side edge bent to the back side.
It is a panel body with reinforcements (1a) provided at the upper and lower edges, respectively, and (1b) is the opening provided in this.

(1C) is the surface of the panel body (1), (2) is a steel plate bent into a two-letter shape, provided on the back side of the panel body (11), and placed at the edge of the opening (1b); 1), a support member (31 fl panel body (1)) having a support part (2a) formed in a groove shape and opened at the center side of the opening part (1b);
A threaded rod (4) is screwed into the threaded rod (3), which is placed on the edge of the opening (1b) and inserted into one side of the support (2) that is in contact with the panel body (1). oak),
(51 is a wired glass whose entire peripheral edge of the opening (1b) is fitted into the support part (2a) via a rubber backing (6).

That is, the wired glass (5) is attached to the opening M (1b) via the backing (6) and the support (2) to form a window-equipped door. A window-equipped door equipped with such wired glass (5) is a class 2 fire door and can be used in an elevator installed in a fire-protected compartment surrounded by a fire-protective wall. Therefore, for emergency elevators etc. that require Class A fire doors, The window-equipped door shown in Fig. 2 cannot be used, and a door without a window has to be installed, which has the disadvantage that the elevator car becomes a closed room, resulting in an unstable security situation. This invention solves the above-mentioned disadvantages. The aim is to provide an elevator door that is equipped with a window and has good fire prevention performance.

Below is the third. An embodiment of the present invention will be explained with reference to FIG.

In the figure, 1st. The same symbols as in FIG. 2 indicate corresponding parts.

(1b) is a panel body (openings provided at two locations at +1).

The peripheral edge of (5) is fitted into support (2a) via a socket (6) made of soft fireproof material such as rock wool (located near the surface (1C) of flannel body (1)). The wired glass plate (5a) is placed in a superimposed state on the wired glass plate (5a), and the wired glass plate (5a) is attached to the panel body (11) and placed near the back surface of the glass plate (5a). This is a transparent plate consisting of a transparent alumina ceramic plate (5b).

That is, the transparent plate (5) serves as the backing (6) and the support (
2) is attached to the panel body (1) through the panel body (1).
) Physical collision from the surface (1C) side of the wired glass plate (
5a), and the transparent alumina ceramic plate (5b) can withstand high temperature impact at about 1500°C.

Further, since the backing (6) is made of a soft fireproof material, it will not be burned down and leakage of fire and smoke can be prevented.

Therefore, a door with a window can be obtained that has fire protection performance comparable to a door without a window made of steel plate.

Although illustration is omitted, in an elevator, when the car stops at a landing, the door of the car and the door of the landing face each other.
In this state, the transparent plate of the car door and landing door (5)
The wired glass plate (5a) of the landing door, the transparent alumina ceramic plate (5b), the transparent alumina ceramic plate (5b) of the car door, and the wired glass plate (5b), arranged so as to face each other and facing the car from the landing side. Construct in the order of (5a).

As a result, it is possible to obtain an elevator door that can prevent damage due to mechanical impact and heating, has a window, has good fire prevention performance, eliminates the need for the car to be a closed room, and has a crime prevention effect.

Moreover, the strength of the transparent plate (5) can be increased by appropriately narrowing the area of the opening (1b).

As explained above, the present invention is made of a soft refractory material in which a wired glass plate and a transparent alumina ceramic plate are arranged in a superposed state in a panel body provided with an opening and a supporting part on the back side of the edge of the opening. A transparent plate is fitted into the support part through a fitting to cover the opening.A wired glass plate is used to protect against physical shock, and a transparent alumina ceramic plate is used to protect against heating. In addition, the backing made of a soft fireproof material prevents the leakage of fire and smoke, and the elevator door is provided with a window, so there is less anxiety regarding crime prevention, and the elevator door has good fire prevention performance.

[Brief explanation of drawings]

Figure 1 is an elevation view showing the back side of a conventional elevator door.
FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a view equivalent to FIG.
FIG. 4 is a sectional view taken along line I--B in FIG. 3. (1)... Panel body, (ib)... Opening its, (
2+...Support. (2a)...Support part, (5)...Transparent plate, (5a
)...Wired glass plate. (5b)...Transparent alumina ceramic plate, (6)...
-Backing. In addition, the same parts or corresponding parts in FIG. 1 are indicated by the same reference numerals. Agent Makoto Kuzuno- Figure 2 Figure 4 449- Figure 3

Claims (1)

[Claims] a panel body having an opening; a support body attached to the back surface of the panel body and having a groove-shaped support part disposed at the edge of the opening part and opening toward the center of the opening part; Elevator door 0 comprising a transparent plate in which a glass plate and a transparent alumina ceramic plate are arranged in a superposed state, and the transparent plate covers the opening and the peripheral edge is fitted into the support part through a backing made of a soft refractory material.