JPH047283A - Ladder device of elevator pit - Google Patents

Abstract

PURPOSE:To ensure safe and easy getting-in and -out to/from an elevator pit and making use of the space of the pit by forming a void at the threshold of the door pocket for the door on the boarding side, and allowing this void to accommodate a ladder extending under and over the boarding floor. CONSTITUTION:A void 7a consisting of a notch is formed at the threshold 7 of a door pocket 15, in which the door 8 on the boarding side is accommodated when the door 8 is opened, and a ladder 10 is accommodated in this void 7a. The ladder 10 extends below the boarding floor 5 to reach the bottom of the pit 1 while stretching upward till under a detent tool 16 mounted to the rear surface of the boarding door 8, wherein fixation to the wall of the pit 1 is accomplished with a fixing tool 17. Because the upper part of the ladder 10 is situated in the door pocket 15, the distance from the entrance/exit of the boarding place is small to provide easy reach by hand. Therefore, coming-in and -out to/from the pit 1 becomes safe and easy. Provision of ladder 10 near the door pocket 15 permits the space to be made use of effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a ladder device used to enter and exit a pit at the bottom of an elevator hoistway.

[Prior Art] FIG. 6 is a cross-sectional view of a hoistway showing a conventional elevator-pit ladder system similar to that shown, for example, in Japanese Utility Model Application No. 2-22979.

In the figure, (1) is the hoistway pit formed at the bottom of the lowest floor of the elevator, (2) is the car, (3) is the car sill laid on the car floor at the entrance/exit of car (2), and (4) ) has its upper end suspended on the heel (2) and its lower end guided on the threshold (3), and the basket (
2) A cage door consisting of a sliding door that opens and closes the entrance/exit, (5)
is the landing floor, (6) is the three-sided frame that stands on the landing floor (5) and forms the landing entrance, (7) is the landing sill fixed to the hoistway side of the landing floor (5), and (8) is the top end A landing door consisting of a sliding door suspended on the building wall above the three-sided frame (6), the lower end of which is guided to the sill (7), and opens and closes the landing entrance in conjunction with the car door (4); (9) is a counterweight; (10) is a ladder installed on the wall of the pit (1).

A conventional elevator-pit ladder system is constructed as described above, and access to and from the pit (1) is achieved using a ladder (10). That is, the car (2) is stopped above the lowest floor, the landing door (8) is opened from the landing side, the passenger climbs onto the ladder (10), and descends into the pit (1).

In addition, as shown in Figure 7, there is also one installed on the wall of the pit (1) directly below the landing threshold (7), and similarly, the landing door (8) can be opened and the foot can be removed from the landing floor (5). Lower the ladder (
10) and get off.

[Problems to be Solved by the Invention] In the elevator-pit ladder device configured as described above, the ladder (10) of the pit (1) is placed on the side of the heel (2) or As shown in Figure 7, the landing threshold (
7), so in the case shown in Figure 6, there is a problem that it is extremely dangerous as you have to step from the landing floor (5) to the ladder (10) with your legs wide apart. . In particular, when @A of the three-sided frame (6) is large and difficult to reach, the width of the entrance/exit B, that is, the width of the landing door (8) is large.

The above-mentioned degree of danger increases when the distance from the landing entrance to the ladder (10) is long. Another problem is that when the car (2) is lowered, the moving cable suspended from the car (2) may get caught on the ladder (10).

In addition, in the case of Figure 7, there is a ladder (10) from the landing side.
You may not be able to see it, and you may lose your footing. Also, pit (1
), especially when exiting from the pit (1),
The problem is that there is no place to hold your hand, making it extremely inconvenient.

This invention was made in order to solve the above-mentioned problems, and its purpose is to provide an elevator-pit ladder device that allows safe and easy entry and exit into the pit and makes it possible to utilize the space of the pit. do.

[Means for Solving the Problems] An elevator pit ladder device according to the present invention has a hollow space formed at the threshold of a door compartment of a landing door, and a ladder extending below and above the landing floor is installed in this space. It stores.

[Function] In this invention, a space is formed at the threshold of the landing door, and the ladder is housed in this space, so that the distance from the landing doorway to the ladder becomes short.

[Example] Figures 1 to 3 are diagrams showing an example of the present invention.
The figure is a cross-sectional view of the hoistway, FIG. 2 is a longitudinal cross-sectional view of the hoistway, and FIG. 3 is a view of FIG. 2 viewed from the right. Portions similar to those of the conventional device are designated by the same reference numerals.

In the figure, (15) shows the landing door (8) when the landing door (8) is opened.
This is the door pocket part where the ladder (
10) is stored. The ladder (10) extends downward from the landing floor (5) to reach the bottom of the pit (1), and extends upward from the engaging tool (car door) attached to the back of the landing door (8). 4), and is fixed to the wall of the pit (1) with a fixture (17). (18) is a buffer installed at the bottom of the pit (1).

In the elevator-pit ladder device configured as described above, the upper part of the ladder (10) is the door pocket (10).
5), it is close to the landing entrance and is easily accessible. Therefore, entering and exiting the pit (1) becomes safe and easy. Open space (7a) on threshold (7)
is located closer to the hoistway than the guide groove of the sill (7), and the upper end of the ladder (10) is connected to the engagement tool (16) of the landing door (8).
Since it is located below the landing door (8), there is no problem in opening and closing the landing door (8).

Conventionally, the space near the door pocket (15) is hardly used, but by providing the ladder (10) here, the space can be used effectively.

In addition, by forming the void space (7a) in the sill (7), when the car (2) is lowered, the air circulation between the landing area and the car (2) is improved, and the air circulation between the car (2) and the car (2) is improved. It becomes possible to reduce internal noise.

4 and 5 are partial cross-sectional views of a hoistway showing other embodiments of the present invention, and the one in FIG. 4 shows not only the threshold (7) of the landing but also the threshold (3) of the car (2). The one in Figure 5 has a blank space (3a) in the landing area (1).
A space (7b) consisting of a through hole is provided in the threshold (7) of 5), and the vertical member of the ladder (10) is passed through there. Both have the same effect as the previously described embodiments.

[Effects of the Invention] As explained above, in this invention, a space is formed at the threshold of the door pocket of the landing door, and a ladder extending below and above the landing floor is housed in this space, so that it can be accessed from the landing doorway. The distance to the ladder is shortened, which has the effect of allowing safe and easy access to the pit.

[Brief explanation of the drawing]

1 to 3 are views showing an embodiment of an elevator-pit ladder device according to the present invention, in which FIG. 1 is a cross-sectional view of the hoistway, FIG. 2 is a longitudinal cross-sectional view of the hoistway, and FIG. 3 is a longitudinal sectional view of the hoistway. FIG. 2 is a view seen from the right side, FIGS. 4 and 5 are partial cross-sectional views of a hoistway showing other embodiments of the present invention, and FIGS. 6 and 7 are views of a conventional elevator pit ladder. FIG. 3 is a cross-sectional view of the hoistway showing the device. In the diagram, (1) is the hoistway pit, (5) is the landing floor, and (7) is the hoistway pit.
is the threshold of the landing, (7a) (7b) is the empty space, (8) is the landing door, and (10) is the ladder. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] A sill is fixed to the hoistway side of the landing floor of the lowest floor of the elevator and guides the lower end of the landing door and extends to the door pocket of the landing door, and a vacant space is formed in the sill of the door pocket, and one A ladder device for an elevator pit, comprising a ladder which is housed in the empty space and extends below and above the landing floor.