JPH09309677A - Underfloor storage type scaffolding base for elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underfloor storage type scaffolding base compact, easily stored in an elevator car and adjustable in height according to a work purpose by installing the scaffolding base under the floor of the elevator car, and providing an expandable leg. SOLUTION: In case of needing to open an emergency opening of the ceiling or performing maintenance of luminaire, a floor tile 14 at the center of an elevator car floor face is taken off to expose a scaffolding 16. Lock mechanism is then released, and a storage handle is gripped to lift the scaffolding 16 upward. Then each expansion element 34, that is, a leg 30 is elongated. After moving up the scaffolding 16 to the required height, an adjusting metal 37 is rotated to engage a corresponding cutout 36 with a second connecting pin 35 on the lower side in each expansion element 34. A support rod 39 is taken out of a storage case 38 and screwed into a threaded hole provided at the scaffolding 16. The emergency opening and luminaire of the car ceiling can be reached easily by going up the scaffolding 16 while holding the support rod 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding table installed in an elevator car.

[0002]

2. Description of the Related Art In recent years, elevator cars have been promoted to have a high ceiling in order to improve the appearance. As a result, the emergency rescue opening provided in the ceiling of the elevator car may be out of reach, or maintenance and replacement of the lighting fixture embedded in the ceiling surface may be time-consuming.

Therefore, an elevator car in which a ladder is prepared in advance in the room has been proposed (for example, actual Kaihei 6-37).
No. 257). If necessary, a ladder can be used to climb the emergency rescue opening.

[0004]

However, in the elevator car disclosed in the above publication, since the ladder is incorporated in the back surface of the side wall of the room, the ladder protrudes from the elevator car to the outside, and thus the elevator car hoistway. In some cases, it may be necessary to increase the space, or it may be necessary to change the layout of other equipment such as a counterweight that achieves the weight balance of the elevator car. Also, when the ladder is attached to the elevator car, it is very difficult to adjust the position and the length of the ladder.

The present invention has been made in view of the above circumstances, and is a compact, easy-to-store elevator car interior room, and the height of the elevator car can be adjusted according to the work application. The purpose is to provide a stand.

[0006]

In order to achieve the above object, according to the first aspect of the invention, an underfloor storage type of an elevator car, characterized in that it is installed under the floor of the elevator car and is provided with retractable legs A scaffolding stand is provided.

According to a second aspect of the invention, in the underfloor storage type scaffolding for an elevator car according to the first aspect of the invention, the legs are composed of long members connected in an X shape by connecting pins. And

[0008]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an elevator car to which an underfloor storage type scaffolding according to the present invention is applied. The rectangular floor surface 10 of the elevator car is surrounded on four sides by side walls 11 rising from the floor surface 10. One of the side walls 11a
There is an entrance 12 for getting on and off the elevator car.
Is formed, and its entrance 12 is opened and closed by an elevator door 13. Nine rectangular decorative floor tiles (for example, made of synthetic resin) 14 are stretched on the floor surface 10.

As shown in FIG. 2, when the central floor tile 14 is removed, a retractable underfloor storage type scaffolding base 15 which will be described later is provided.
Scaffold 16 appears. The scaffold 16 is held by the pair of lock mechanisms 17 at a position where the surface of the floor tile 14 is flush with the surface of the surrounding floor tile 14 when the floor tile 14 is covered. To extend the underfloor storage scaffolding platform 15, the pair of storage handles 18 may be used to pull the scaffolding 16 upward.

As shown in FIG. 3, the lock mechanism 17 includes a lock case 19 attached to the back surface of the scaffold 16 formed of a flat plate. The cylindrical lock pin 20 is housed in the lock case 19 so as to be movable in the axial direction.
An operation piece 21 is integrally formed with the lock pin 20, and the operation piece 21 faces an operation opening 22 formed in the scaffold 16. When the lock pin 20 is brought to the lock position (position in FIG. 3) by the operation piece 21, the lock pin 20 enters the stopper case 24 installed on the floor plate 23 side of the elevator car, and the scaffold 16 is locked to the floor plate 23. .
When the lock pin 20 moves to the unlocked position (rightward position in FIG. 3), the lock pin 20 separates from the stopper case 24, and the scaffold 16 moves up and down. The lock mechanism 17 may be provided in any number and at any place so that the scaffold 16 can be stably held.

As shown in FIG. 3, the storage handle 18 includes a handle body 26 that rotates around a handle pin 25.
Since the grip portion 27 of the handle main body 26 functions as a weight, the handle main body 26 normally takes a rotational position in which the flat portion 28 that is flush with the surface of the scaffold 16 is exposed. At the time of use, the grip body 27 is exposed to the outside by rotating the handle body 26 by applying a pressing force to the flat portion 28. If you grasp the grip 27 and apply force upwards, the scaffold 1
6 can be pulled out upward.

The underfloor storage type scaffolding base 15 will be described in detail with reference to FIG. The underfloor storage scaffolding 15 includes retractable legs 30 that support the scaffold 16. The leg 30 includes a pair of long members 3 connected in an X shape by a first connecting pin 31.
A plurality of sets, for example three sets, of the expansion / contraction elements 34 formed by the reference numerals 2 and 33 are provided. The second connecting pin 35 is provided at the end of each long member 32, 33.
The second connecting pin 35 connects the expandable elements 34 to each other. In each expansion / contraction element 34, the heights in the vertical direction are adjusted by rotating the long members 32 and 33 around the first connecting pin 31 and adjusting the angle α formed by the long members 32 and 33.

At the upper end of each of the long members 32, 33, an adjusting metal 37 having a plurality of, for example, four U-shaped notches 36 formed at equal intervals is provided with a second connecting pin 35. It is rotatably attached via. Within each telescopic element 34, when the height is determined, the notch 36 of the adjustment gold 37 is provided.
The second connecting pin 35 is fitted into the second connecting pin 35, and the second connecting pins 35 are bridged by the adjustment gold 37. Therefore, the adjustment gold 37 supports the weight acting on the scaffold 16.

The underfloor storage type scaffolding base 15 is supported by a storage case 38 fixed to the back surface of the floor plate 23. The storage case 38 is formed in a substantially box shape, and an end portion of one long member 32 of the lowest stretchable element 34 is swingably attached to the bottom surface of the storage case 38 via a second connecting pin 35.
The other long member 33 is slidably supported on the bottom surface. A fixed metal 40 for fixing the support rod 39 attached to the scaffold 16 is fixed to the bottom surface of the storage case 38.

Next, the operation of the present embodiment will be described. It is assumed that personnel are trapped in the elevator car and the emergency opening of the car ceiling needs to be opened, or that the luminaire installed on the car ceiling is to be maintained or replaced. First, the floor tile 14 at the center of the floor surface 10 is peeled off to expose the scaffold 16. Then, the lock mechanism 17 is released, and the storage handle 18 is released.
Grasp and lift the scaffold 16 upward. Then, each elastic element 34, that is, the leg 30 extends. After raising the scaffolding 16 to the required height, the adjustment metal 37 is rotated to engage the corresponding notch 36 with the lower second connecting pin 35 in each elastic element 34.

The support rod 39 is taken out from the storage case 38 and screwed into the threaded hole 41 (see FIG. 3) provided in the scaffold 16. If you climb onto the scaffolding 16 while grasping the support rod 39, you can easily reach the emergency opening of the car ceiling and the lighting equipment.

To store the underfloor storage type scaffolding base 15, first, the support rod 39 is removed and fixed to the bottom of the storage case 38. Then, the adjustment gold 37 is disengaged from the second connecting pin 35, and the corresponding first connecting pin 31 of the long members 32 and 33 is removed.
The notch 36 of the adjustment gold 37 is engaged with (see FIG. 3).
reference). By this engagement, it is possible to prevent the adjustment gold 37 from hanging during storage. Adjustment money 37
Foot 30 that lost the weight support mechanism of the scaffold 16 due to release of the
Naturally contracts due to the weight of the underfloor storage scaffolding base 15 (see FIG. 3). Finally, the lock mechanism 17 is operated to fit the floor tile 14, and the storage of the underfloor storage scaffolding base 15 is completed.

Such an underfloor storage type scaffolding base 15 is shown in FIG.
As is apparent from the above, since it is installed between the floor beams 42 that are passed to the bottom of the elevator car and support the floor plate 23, it is necessary to occupy an extra space and change the layout of other equipment. Absent. Further, since the height of the scaffold 16 is adjustable, the underfloor storage type scaffolding base 15 can be used for various purposes.

[0020]

As described above, according to the first and second aspects of the invention, there is provided an underfloor storage type scaffolding base that does not require an extra space to be occupied or the layout of other devices to be changed.

[Brief description of drawings]

FIG. 1 is a view of a floor surface of an elevator car in which an underfloor storage type scaffolding according to the present invention is incorporated, as seen from above.

FIG. 2 is a view of the floor surface of the elevator car seen from above with floor tiles removed.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a side view of the underfloor retractable scaffolding platform in an extended state.

5 is a cross-sectional view taken along line 5-5 of FIG.

[Explanation of symbols]

15 Underfloor stowage platform, 16 scaffolds, 30 legs, 31
First connecting pin as connecting pin, 32, 33 long member.

Claims (2)

[Claims] 1. An underfloor retractable scaffolding for an elevator car, which is installed under the floor of the elevator car and is provided with retractable legs. 2. The underfloor storage type scaffolding for an elevator car according to claim 1, wherein the legs are X-shaped by connecting pins.
An underfloor storage-type scaffolding platform for an elevator car, which is composed of long members connected in a V shape.