JPS5924713B2 - sliding door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Doors whose entrances and exits are automatically opened and closed by a driving machine are often composed of horizontal sliding doors, and are used in general passenger elevators, trains, buses, automatic elevators, etc.

In a door that is opened and closed by such a driving machine, it is necessary to provide a means to prevent fingers or hands from being drawn between the door and the doorway frame.

Recently, especially in elevator sliding door devices, accidents have occurred where fingers or hands get stuck between the sliding door and the doorway frame when the door is opened, resulting in injury.

First, referring to FIGS. 1 to 3, the structure of a conventional sliding door device will be explained using an elevator sliding door as an example.

1 is the entrance/exit of the elevator landing, 2 is the entrance/exit frame forming the entrance/exit, 2a, 2b are the side frames of the entrance/exit frame 2, 2c is the upper frame of the entrance/exit frame 2, 2d is the back of the side frame 2a, and 2e is the side frame. The upper parts of the rear surfaces 3 and 4 of 2b are appropriately suspended (not shown), and the lower parts are guided by a guide groove 5a provided in the sill 5.
The landing sliding doors 3a and 4a are the top plates of the sliding doors 3 and 4 of the landing, which are opened and closed by moving the entrance/exit 1 in opposite directions by a driving machine (not shown), so that they do not interfere with opening and closing. It is arranged parallel to the guide groove 5a so as to have a gap G over the entire length in the height direction between the side frames 2a and 2b of the entrance frame 2 and the back surfaces 2d and 2e.

Since this gap G needs to be maintained over the entire opening and closing stroke of the sliding doors 3 and 4, it cannot be made extremely small even when the sliding doors 3 and 4 are fully closed, and is usually about 5 mm wide.

6 is an elevator installed on the wall 7 around the entrance/exit frame 2.
This is the call button.

In the conventional elevator door system with this structure, children in particular may slip as shown in FIG. People are leaning, leaning, or touching the front panels 3a and 4a of the doors 3 and 4.

At this time, the elevator car arrived and the sliding door 3
, 4 are electrically opened, fingers and hands may become wedged in the gap G as shown in FIG. 3, resulting in injury.

This invention solves the above-mentioned drawbacks, and aims to provide a sliding door in which a passenger's fingers or the like are unlikely to get stuck between the sliding door and the doorway frame during the door opening operation.

An embodiment of the present invention will be described below with reference to FIGS. 4 and 5.

In the figure, the same reference numerals as those in FIGS. 1 to 3 indicate corresponding parts. 2 is an entrance/exit member consisting of an entrance/exit frame, 2d is the back side of the side frame 2a, 2e is the back side of the side frame 2b, and 3b is the sliding door. 3 is the edge on the door pocket side, 3c is a protruding member that extends along this and protrudes toward the back side 2d, 4b is the edge of the sliding door 4 on the door pocket side,
4c is a protruding member that extends along this and protrudes toward the back surface 2e side.

That is, when the sliding doors 3, 4 are fully closed, narrow gaps G are formed between the protruding member 3c and the back surface 2d1 and between the protruding member 4c and the back surface 2e, respectively, as shown in FIG.

Then, by the door opening operation of the sliding doors 3 and 4, the protruding member 3c,
When 4c moves, the surface 3 of sliding doors 3 and 4 simultaneously moves.
a, 4a and back 2d.

2e, a wide gap G' is formed as shown in FIG.

Therefore, even if a child or the like puts their hand on the sliding door 3 as shown in FIG. 4, as the sliding door 3 opens, the gap between the sliding door 3 and the back surface 2d will be removed as shown in FIG. 5. Since G' is widened, even if a finger or hand gets stuck, it can be easily pulled out without causing injury.

Also, when the sliding doors 3 and 4 are fully closed, the gap G is between the sliding doors 3 and 4.
, 4 expands to the gap G' as the doors open, so even if the gap G is set narrower than the gap G in FIGS. 2 and 3, the sliding doors 3 and 4
It does not affect the operation of the device.

Therefore, the gap G can be easily made as narrow as possible, and an effect of reducing the intrusion of smoke into the hoistway in the event of a fire in the hall can be obtained.

Note that even if the entrance/exit member 2 in this embodiment is a low-speed door with two single sliding doors and is displaced relative to a sliding door that is a high-speed door, the protruding member 3c is not attached to the high-speed door. The fourth point is to prevent accidents caused by fingers or hands getting stuck between the high-speed door and the low-speed door.
, it is clear that the same effect as in FIG. 5 can be obtained.

As explained above, the present invention includes a protruding member that protrudes from the door bag side edge of the sliding door that slides along the doorway member and moves relative to the doorway member through a gap therebetween, and that reduces the gap when the sliding door is fully closed. The sliding door is provided so that the gap between the doorway member and the surface of the sliding door is expanded by the opening operation of the sliding door.

This prevents accidents such as children's fingers or hands getting stuck.

[Brief explanation of the drawing]

Fig. 1 is a front view of the elevator landing entrance, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a view showing the sliding door in Fig. 2 in a fully open state, and Fig. 4 is a view according to the present invention. FIG. 2 is a view corresponding to one embodiment of the sliding furnace apparatus, and FIG. 5 is a view showing the sliding door in FIG. 4 in a fully open state. 1... Entrance/exit, 2... Entrance/exit member, 2
a, 2b... side frame, 2d, 2e...
...Back, 3, 4...Sliding door, 3b, 4b...
...Edge on door pocket side, 3c, 4c...Protruding member. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. An entrance/exit member provided at the entrance, at least one sliding door that opens and closes the entrance and slides along a plane perpendicular to the entrance/exit direction of the entrance and moves relative to the entrance/exit member across a gap, and the sliding door. a protruding member that protrudes from the edge of the door pocket side toward the doorway member to reduce the gap, and when the sliding door is fully closed, the side surface of the protruding member faces the doorway, and the protruding member A sliding door device in which a protruding edge of the door faces the back surface of the doorway member.