JPS6219661Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of an elevator landing door device.

Generally, an elevator landing door device is provided with a locking device so that the door to the landing cannot be opened from the landing side.

First, a conventional elevator landing door device will be explained with reference to FIGS. 1 to 3.

In the figure, 1 is the entrance/exit of the elevator hall, 2 is the surrounding wall of the entrance/exit 1, and 3 is a hanging wheel case with an L-shaped cross section fixed to the surrounding wall 2 above the entrance/exit 1, from the upper side 3a and the vertical side 3b. It's summery. A rail 4 is fixed to the vertical side 3b of the suspension wheel case 3 via seats 5 and 5'. 6 and 6' are hanging wheels,
It consists of rollers 6a, 6a' rolling on the rail 4, auxiliary rollers 6b, 6b' rolling on the lower surface of the rail 4, and hanging plates 6c, 6c' having an L-shaped cross section to which these rollers are pivoted. There is. 7 and 7' are sliding doors whose upper ends are connected to hanging plates 6c and 6 of hanging wheels 6 and 6', respectively.
c', and its lower end is guided to a sill 8 fixed to the floor of the landing to open and close the entrance/exit 1. Reference numeral 9 denotes a locking device, which is composed of a main body 10 and a movable part 11. 10
A is a fixture for fixing the main body 10 having an L-shaped cross section, and is fixed to the upper side 3a of the hanging wheel case 3 by a horizontal portion 10b. In addition, the vertical part 10c has a latch 1 at the bottom end.
Contact point 10e horizontally arranged near the center of 0d,
A contact 10f provided with 10e' is fixed. Reference numeral 11a denotes a lock latch of the movable part 11, which is pivotally connected to the hanging plate 6c of the hanging wheel 6 by a shaft 12 near the center, and has an engaging part 11b at its tip that engages with the latch 10d. 11e has contact 10
A shorting contact 11c is fixed to short-circuit the terminals e and 10e'. Further, a connecting rod 13 connected to an unlocking device (not shown) is coupled to the other end 11d.

That is, the locking device 9 electrically confirms when the mechanical locking by the engaging portion 11b of the latch 10d is correctly performed when the sliding doors 7, 7' are fully closed, and then operates the elevator. designed to make it possible. That is, electrical confirmation is performed by arranging the contacts 10e and 10e' horizontally and short-circuiting them by the short-circuiting contact 11c provided on the lock latch 11a.
As for e', the depth of the suspension wheel case 3 cannot be made smaller due to the legal requirement to ensure sufficient clearance with the surroundings, and a large hoistway space is required, which causes the problem of increasing the installation space of the elevator. It was hot.

This invention solves the above-mentioned drawbacks and aims to provide an elevator landing door device that can be easily installed in a small space.

An embodiment of this invention will be described below with reference to FIGS. 4 to 7.

In the figure, the same reference numerals as those in Figures 1 to 3 indicate corresponding parts, and 4a and 4b are rails that are respectively placed backward in the door opening direction from the end face on the door closing side when the sliding doors 7 and 7' are fully closed. , 6c, 6c' are sliding doors 7, 7'
A sliding door 7, which is made up of hanging plates arranged to be set back in the door opening direction from the end face on the closing side of the door, and arranged in an overlapping state on the surrounding wall 2 forming the upper edge of the doorway 1,
The upper edge 6d of the upper edge 7' is a notch 11a provided in the horizontal part 6e of the upper edge 6c for arranging the connecting rod 13, and is a lock latch made of a thin steel plate.
In order to accommodate the bearing 11g, the seat 11h is welded to form a thick wall portion 1f. The engaging part 11b is formed in one plane from the pivoting part 11f, so that when the door 7 is forced open from the landing side, bending force in the left and right direction in FIG. 5 is not applied when force is applied to the engaging part 11b. It is considered. The top surface 11i is the lock latch 1
A portion of 1a is bent. As shown in FIG. 5, the doors 7 and 7' have their surfaces facing away from the entrance 1 near the tip of the sill 8, and the door 7 has
A cutout groove 7a is provided through which the connecting rod 13 passes.

Further, an unlocking device (not shown) is provided within the thickness of the door 7. 9 is a locking device, and its main body 10
is fixed to the upper edge of the hanging wheel case 3, that is, the upper edge of the doorway 1, and is arranged between the upper edges 6c, 6c' of the sliding doors 7, 7', so that when the sliding doors 7, 7' are fully closed, the side surface is the upper edge. Facing the end faces of the parts 6c and 6c' on the door closing side,
Moreover, it is arranged at a position away from the upper edges 6c, 6c' in the door closing direction.

That is, the upper edges 6c, 6c' are configured so that a space is formed between the upper edges 6c, 6c' when the sliding doors 7, 7' are fully closed, and the rail 4
a and 4b are arranged so that a space is also formed between the ends on the door closing side, and a locking device 9 is provided in the space. This reduces the space required for installing the landing door device from the tip of the sill 8 to the wall surface of the entrance/exit 1. Therefore, an elevator system is obtained that allows efficient use of building space.

In this embodiment, the end surfaces of the upper edges 6c, 6c' of the sliding doors 7, 7' and the side surfaces of the main body 10 of the locking device 9 are arranged so as to face each other. 6c, 6c', where the side surfaces of the main body 10 face each other at a position above the end faces, that is, the main body 10 is disposed above the upper side 3a of the suspension wheel case 3 in FIG. It is clear that the same effects as those of the embodiments shown in FIGS. 4 to 7 can be obtained even in this case.

As explained above, in this invention, the upper edge is configured so that a space is formed on the side of the upper edge when the sliding door is fully closed, and the rail is also placed on the side of the end on the door closing side. Since the arrangement is such that an empty space is formed and the locking device is installed in the empty space, it can be installed even if the space from the tip of the landing sill to the wall of the entrance is small, making the space of the building more efficient. The objective is to realize an elevator landing door device that can be used for a variety of purposes.

[Brief explanation of the drawing]

Figure 1 is a front view of the main parts of a conventional elevator landing door device, Figure 2 is a cross-sectional view taken along the line - - in Figure 1, Figure 3 is a cross-sectional view taken in line - - in Figure 1, and Figure 4 is a sectional view of this invention. Figure 1 is a phase diagram showing an example of an elevator landing door device according to
A line sectional view, FIG. 6 is a - line sectional view of FIG. 4,
7 is a perspective view of the lock latch of FIG. 4; FIG. 1... Entrance/exit, 2... Surrounding wall, 6c, 6c'...
Upper edge, 7, 7'...sliding door, 9...locking device,
10...Body. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] A rail disposed along the upper edge of the doorway and its own upper edge are arranged in an overlapping state with respect to the upper edge of the doorway, and the door opens and closes while being guided by the rail. It has a sliding door and a locking device that is provided at the upper edge of the doorway and locks the sliding door when the sliding door is fully closed, and the upper edge of the sliding door has a door closing side end face that is closer to the side end face of the sliding door body. The door closing side end of the rail is also set back near the door closing side end surface of the upper edge, and the locking device is located at a position set back in the sliding door opening direction, and the locking device is located at a position set back near the door closing side end of the upper edge. an elevator landing, characterized in that the door is disposed on the side of the door closing side edge of each of the sliding door and the rail in a non-overlapping state with respect to the upper edge of the sliding door and the rail, and at a position corresponding to the upper end surface of the sliding door. door device.