JP2003252550A - Method for repairing ceiling of elevator car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a ceiling needs to be held horizontal for a long time and a work for fastening and fixing the ceiling needs to be performed on an upper surface of a car providing poor foot rest in a conventional method for repairing the ceiling of the elevator car. <P>SOLUTION: This invention relates to a method for repairing the ceiling of the elevator car to attach a rectangular ceiling plate split into a ceiling center plate 7 and ceiling end plates 8, 9 on a car of which ceiling is removed. The method is provided with a first process bridging the ceiling center plate 7 across an upper end of a front surface wall 1 of the car and an upper end of a rear surface wall 2 and a fastening and fixing the same, a second process of mounting one ends of the ceiling end plates 8, 9 on upper ends of left and right surface walls 3, 4 of the car and overlapping another ends of the ceiling end plates 8, 9 with the ceiling center plate 7 and fastening and fixing the same in the car, and a third process of fastening and fixing the ceiling end plates 8, 9 and upper ends of left and right surface walls 3, 4 at out of the car. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing an elevator cab ceiling, which enables safe fixing work of the ceiling by fastening members such as bolts.

[0002]

2. Description of the Related Art Demand for remodeling of elevators is increasing year by year due to deterioration of buildings and depression. Among them, the renovation of the car interior is an important part visually.
However, if all of them are replaced, the cost will increase. Therefore, in many cases, the existing wall is left as it is, a design sheet or the like is attached to the surface, and only the ceiling is replaced. However, as in Japanese Utility Model Publication No. 59-11979 shown in FIG. 10, in a large-scale construction in which the ceiling plate 20 larger than the size of the car room is directly installed on the wall, the car room is already accommodated in the hoistway. It is difficult to do it in a standing state.

The ceiling plate 20 having such a large size is also used.
If you try to lift and install the
As shown in FIG. 3, the handrail 21, the mirror 22, the operation panel 23, and other projections in the cab interfere with each other and cannot be installed in most cases. Therefore, the size of the ceiling plate is made smaller than the size of the car room, and a mounting method is provided for mounting the ceiling plate by providing a mounting bracket between the ceiling plate and the existing wall, and JP-A-9-240964 shown in FIG. As disclosed in the official gazette, a method of repairing the ceiling plates 24, 25, 26 divided into a plurality of parts is adopted.

[0004]

However, in the former repair method, it is necessary to hold the ceiling plate horizontally for a long time, and the fastening and fixing work of the ceiling plate must be performed on the upper surface of the car room where the scaffolding is bad. However, there was a problem in terms of workability. In addition, the latter repair method does not consider the work inside the car, and most of the fastening work between the divided ceiling boards and the fastening work between the ceiling board and the wall must be done outside the car where the scaffolding is poor. This was a problem in terms of work safety.

It is an object of the present invention to solve the above problems and to provide a method for repairing the ceiling of an elevator cab that can safely perform fastening and fixing work on the ceiling.

[0006]

According to the method for repairing the ceiling of an elevator cab according to the present invention, a rectangular ceiling plate divided into a central ceiling plate and a ceiling end plate is attached to a cab whose ceiling is removed. A method of refurbishing an elevator cab ceiling, comprising a first step of fastening and fixing the ceiling central plate by passing it over the upper ends of the front wall and the rear wall of the cab, and fixing one end of the ceiling end plate to the left and right walls of the cab The second step of placing the other end of the ceiling end plate on the center plate of the ceiling and fastening and fixing it in the car room, and fastening the ceiling end plate and the upper ends of the left and right side walls of the car room outside the car And a third step of fixing.

Further, a fourth step of connecting the lighting fixtures respectively attached to the ceiling center plate and the ceiling end plate via a connector, and an illumination plate covering the lighting equipment and the fastening members used in the second step. Is further attached to the ceiling center plate and the ceiling end plate from below.

Further, in the first step, a pair of support members are fixed to the upper end of the front wall and the upper end of the rear wall of the cab by extending the ends in the center direction, and the ends of these support members and the center plate of the ceiling. It is characterized in that both ends thereof are overlapped and fixed from above by a fastening member.

Further, in the method for repairing the ceiling of an elevator cab according to the present invention, the ceiling of an elevator cab is attached to a car room from which the ceiling has been removed by mounting a rectangular ceiling plate divided into a ceiling center plate and a ceiling end plate. The first step of fixing the ceiling center plate by passing it over the upper ends of the front wall and the rear wall of the cab and fastening and fixing one end of the ceiling end plate on the upper ends of the left and right walls of the cab. The second step of placing the other end of the ceiling end plate against the center plate of the ceiling and fastening and fixing this contact part outside the car room, and the ceiling end plate and the upper ends of the left and right side walls of the car room. And a third step of fastening and fixing it outside the car.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the method for repairing the ceiling of an elevator cab according to the present invention will be described below with reference to the accompanying drawings. Embodiment 1. FIG. 1 is a perspective view showing a car room ceiling and its surroundings, which is a target of the method for repairing the elevator car room ceiling according to the first embodiment. FIG. 2 is an exploded perspective view of the cab ceiling. From these figures, 1 is the upper door of the car room (front wall), 2 is the front wall of the car room (rear wall), 3 and 4 are the side walls of the car room (left and right side walls), 5 is the doorway of the car room. Ceiling front plate fastened and fixed to the upper end of the upper plate 1, 6
A ceiling rear plate fastened and fixed to the upper end of the front wall 2 of the car room,
Reference numeral 7 denotes a rectangular ceiling center plate that is fastened and fixed to the front ceiling plate 5 and the rear ceiling plate 6, and 8 and 9 are rectangular ceiling end plates that are fastened and fixed to the left and right sides of the central ceiling plate 7, respectively. .

The ceiling front plate 5 has bent portions 5a and 5b at the lower end and the upper end, respectively, and a plurality of holes for inserting fastening members such as bolts are formed in the bent portion 5a at the lower end. Further, the bent portion 5b at the upper end is provided with a fin portion 5c that rises upward and is bent in an L shape, and the fin portion 5c is formed with a plurality of holes for inserting a fastening member. Similarly, the ceiling back plate 6 has bent portions 6a and 6b at the lower end and the upper end, respectively, and the bent portion 6a at the lower end is formed with a plurality of holes for inserting fastening members. In addition, in the bent portion 6b at the upper end,
A fin portion 6c that rises upward and is bent into an L-shape is provided, and a plurality of holes for inserting a fastening member are formed in the fin portion 6c.

Further, the ceiling center plate 7 has U-shaped bent portions 7a and 7b on both sides, and a plurality of holes for inserting a fastening member are formed in these bent portions 7a and 7b. ing. Further, the ceiling end plates 8 and 9 rise downward from one side portion and the fin portions 8a and 9a bent in an L shape and rise upward from the other side portion L.
The fins 8b and 9b are bent in a letter shape, and the fins 8a, 8b, 9a and 9b are provided with a plurality of holes for inserting the fastening members.

Next, a method for repairing the ceiling of the elevator cab according to the first embodiment will be described with reference to FIGS. 3 to 5 are sectional views when the cab is cut in the front-rear direction and seen from the side, and FIGS. 6 to 8 are
FIG. 4 is a cross-sectional view of the cab when cut in the left-right direction and viewed from the front.

First, as shown in FIG. 3, the bent portion 5 at the lower end of the ceiling front plate 5 with respect to the cab with the ceiling removed.
Align a with the upper end of the entrance upper plate 1 and tighten the fastening member 10 from above.
Fix with. In addition, the bent portion 6a at the lower end of the ceiling rear plate 6
Is fixed to the upper end of the front wall 2 with a fastening member 10 from above. As a result, the fins 5c at the upper end of the ceiling front plate 5 and the fins 6c at the upper end of the ceiling rear plate 6 project toward the center of the cab and face each other. In this step, since the ceiling is still removed, the work of attaching the front ceiling plate 5 and the rear ceiling plate 6 can be easily performed by the worker by extending his / her hand out of the cab.

Next, as shown in FIGS. 4 and 5, one end of the ceiling center plate 7 is obliquely lifted from the car room and placed on the fins 5c of the ceiling front plate 5 and at the same time, the ceiling center plate is The other end of 7 is also lifted from the car room and placed on the fin portion 6c of the ceiling rear plate 6. In this state, both ends of the ceiling center plate 7 and the fins 5c and 6c are fixed from above by the fastening member 10. This mounting work can also be easily performed by the worker extending his / her hand out of the car room.

Further, as shown in FIG. 6, the ceiling end plate 8,
9 is lifted diagonally from the car room, and one of the fins 8a, 9a of the ceiling end plates 8, 9 is placed on the upper ends of the side plates 3, 4. Then, the ceiling end plates 8, with the fins 8a, 9a as axes,
9 is lifted from below, and the other fins 8b and 9b of the ceiling end plates 8 and 9 are brought into contact with the lower surface of the ceiling center plate 7. In this state, the fins 8b and 9b of the ceiling end plates 8 and 9 and the ceiling center plate 7 are fixed from below by the fastening member 10. Further, the bent portions 7a and 7b of the central ceiling plate 7 and the ceiling end plates 8 and 9 are fixed from below by a fastening member 10. Further, the front and rear of the ceiling end plates 8 and 9, the fins 5b of the front ceiling plate 5 and the fins 6b of the rear ceiling plate 6 are fixed from below by fastening members 10. These mounting operations can be easily performed by the worker in the cab.

Next, as shown in FIG. 7, the ceiling end plates 8 and 9 are
The fins 8a and 9a and the upper ends of the side plates 3 and 4 are fixed with a fastening member 10 from above. In this state, the ceiling of the car room is already closed by the ceiling center plate 7 and the ceiling end plates 8 and 9, so that it is not possible to extend the hand from the car room for the installation work. Therefore, the worker opens the rescue exit (not shown) provided in the ceiling center plate 7 and climbs onto the ceiling center plate 7, and tightens the fastening member 10 outside the car using the ceiling center plate 7 as a scaffold. Do the work.

Here, as shown in FIG.
In the case where the ceiling central plate 7 and the ceiling end plates 8 and 9 are separately attached in advance, it is preferable to provide a detachable connector 12 between each lighting fixture 11. With such a configuration, the ceiling center plate 7 and the ceiling end plates 8 and 9
Wiring of each lighting fixture 11 can be performed very easily only by connecting the connector 12 after attaching and to the ceiling. As a result, on-site wiring work can be reduced as much as possible. Further, wiring of electric devices other than the lighting equipment 11 can be performed through the connector 12 in the same manner, so that the wiring work on site can be reduced as much as possible.

After the connector 12 is assembled, the lighting equipment 11
The lighting plate 13 for covering the ceiling central plate 7 and ceiling end plates 8 and 9
Refitting the ceiling of the cab will be completed by installing it from below. By the work of attaching the ceiling end plates 8 and 9 shown in FIG. 6, the bent portions 7a and 7b of the ceiling center plate 7 are
Although a part of the fastening member 10 that fixes the ceiling end plates 8 and 9 to each other is exposed in the car room, the fastening member 10 can be hidden by the illumination plate 13 attached in the last step. As a result, it is possible to prevent the appearance of the interior of the car from being impaired by the exposure of the fastening member 10.

According to the method of repairing the ceiling of the elevator cab according to the above steps, the divided ceiling center plate 7 and ceiling end plates 8 and 9 are fastened and fixed in order, so that each ceiling plate is held. The time is very short. Therefore, unlike the conventional example, it is not necessary to hold the ceiling plate in a horizontal state for a long time, and the labor of the worker can be reduced. Also, most of the work can be done inside the car, and only the fins 8 of the ceiling end plates 8 and 9 must be done outside the car.
For the fastening work between a and 9a and the upper ends of the side plates 3 and 4, the already mounted ceiling center plate 7 can be used as a scaffold. As a result, it is possible to work safely as compared with the conventional repair method.

Further, the ceiling center plate 7 and the ceiling end plate 8,
The fin portion 5c of the ceiling front plate 5 and the fin portion 6c of the ceiling rear plate 6, which are the parts to which 9 is fixed, both project toward the center of the cab. For this reason, the total length of the ceiling center plate 7 and the ceiling end plates 8 and 9 is equal to the protrusion of the fins 5c and 6c.
It may be shorter than the width of the cab. As a result, the work of attaching the central ceiling plate 7 and the ceiling end plates 8 and 9 can be smoothly performed in the car room without being caught by the protrusions in the car room.

Embodiment 2. Next, a method for repairing the ceiling of the elevator cab according to the second embodiment will be described. The method of repairing the ceiling of the elevator cab differs from that of the first embodiment in the step of fastening and fixing the central ceiling plate 7 and the ceiling end plates 8 and 9. Other steps are the same as or equivalent to those in the first embodiment. In addition, the same reference numerals are given to the same or equivalent components as in the first embodiment, and the description thereof will be omitted.

As shown in FIG. 9, fins bent upward at right angles are provided at both end portions of the central plate 7 of the ceiling. Further, the fin portions 8b and 9b of the ceiling end plates 8 and 9 are also bent upward at a right angle. With this structure, when the ceiling end plates 8 and 9 are lifted from below with one of the fins 8a and 9a of the ceiling end plates 8 and 9 placed on the upper ends of the side plates 3 and 4. , The other fin part 8 of the ceiling end plates 8 and 9
b, 9b and the fin portion of the central plate 7 of the ceiling come into contact with each other. Then, these fins are overlapped, and the fastening member 10 is placed outside the car.
By fixing with, the ceiling end plates 8 and 9 can be installed without exposing the fastening member 10 in the car room.

For fastening and fixing the ceiling end plates 8 and 9, the worker 1 who rides on the step 16 etc. by bending the rescue exit cover 15 of the rescue exit 14 provided on the ceiling center plate 7 at the hinge portion to open it.
7 performs the upper body from the rescue exit 14 to the outside of the car. In such a work, the worker 17 does not have to completely go out of the car room, so the work safety is improved.
Further, since the fastening member 10 is not exposed to the inside of the car at all in the ceiling attached in this work process, it is not necessary to cover the ceiling with the illumination plate 13. As a result, the present embodiment can be applied to repairing a flat ceiling type ceiling in which the illumination plate 13 is not suspended.

In the above-described first and second embodiments, the front wall corresponds to the entrance upper plate 1, the rear wall corresponds to the front wall 2, and the left and right side walls correspond to the side walls 3 and 4, respectively. Is not necessarily limited to such correspondence, and the side walls 3 and 4 are provided on the front and rear walls, and the entrance upper plate 1 is provided on the left and right walls.
The front wall 2 may correspond to each other. In such a case, the ceiling center plate 7 is installed between the side wall 3 and the side wall 4, and is provided between the entrance upper plate 1 and the ceiling center plate 7 and between the front wall 2 and the ceiling center plate 7, respectively. The ceiling end plates 8 and 9 will be installed.

[0026]

According to the method for repairing the ceiling of the elevator cab according to the present invention, the divided central plate and the end plate of the ceiling are fastened and fixed in order, so that the time required to hold each ceiling plate is reduced. Only a few. Therefore, unlike the conventional example, it is not necessary to hold the ceiling plate in a horizontal state for a long time, and the labor of the worker can be reduced. Further, the work of the first step and the second step can be performed in the car room, and the work of the third step, which must be performed only outside the car, can utilize the already mounted ceiling center plate as a scaffold. Therefore, it is possible to work more safely than the conventional repair method.

[Brief description of drawings]

FIG. 1 is a perspective view showing a car room ceiling and its surroundings, which is a target of a method for repairing an elevator car room ceiling according to a first embodiment.

FIG. 2 is an exploded perspective view of a car room ceiling that is a target of the method for repairing the elevator car room ceiling according to the first embodiment.

FIG. 3A is a cross-sectional view showing a method of repairing the ceiling of the elevator cab according to the first embodiment. (B) is a plan view showing a method for repairing the ceiling of the elevator cab according to the first embodiment.

FIG. 4 (a) is a cross-sectional view showing a method for repairing the ceiling of the elevator cab according to the first embodiment. (B) is a plan view showing a method for repairing the ceiling of the elevator cab according to the first embodiment.

FIG. 5A is a cross-sectional view showing a method for repairing the ceiling of the elevator cab according to the first embodiment. (B) is a plan view showing a method for repairing the ceiling of the elevator cab according to the first embodiment.

FIG. 6A is a cross-sectional view showing a method for repairing the ceiling of the elevator cab according to the first embodiment. (B) is a plan view showing a method for repairing the ceiling of the elevator cab according to the first embodiment.

FIG. 7A is a cross-sectional view showing a method for repairing the ceiling of the elevator cab according to the first embodiment. (B) is a plan view showing a method for repairing the ceiling of the elevator cab according to the first embodiment.

FIG. 8 is a cross-sectional view showing a method of repairing the ceiling of the elevator cab according to the first embodiment.

FIG. 9 is a diagram showing main steps of a method of repairing an elevator cab room ceiling according to a second embodiment.

FIG. 10 is a perspective view showing a method of repairing the ceiling of an elevator cab according to a conventional technique.

FIG. 11 is a cross-sectional view showing the interior of an elevator car according to the related art.

FIG. 12 is a perspective view showing a method for repairing the ceiling of an elevator cab according to a conventional technique.

[Explanation of symbols]

1 ... Door top plate (front wall), 2 ... Front wall (rear wall),
3, 4 ... Side wall (left and right side wall), 5 ... Ceiling front plate, 6 ... Ceiling rear plate, 7 ... Ceiling center plate, 8, 9 ... Ceiling end plate, 10 ... Fastening member, 11 ... Lighting fixture, 12 ... Connector , 13 ... Lighting plate, 14 ... Rescue exit, 15 ... Rescue exit lid, 16 ... Step, 17
…worker.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hatsue Yamada             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. F-term (reference) 3F305 DA15                 3F306 AA02 CA15

Claims (4)

[Claims] 1. A method of repairing an elevator car room ceiling, wherein a rectangular ceiling plate divided into a ceiling center plate and a ceiling end plate is attached to a car room from which the ceiling is removed. A first step of fastening and fixing by passing over the upper end of the front wall and the upper end of the rear wall of the cab, placing one end of the ceiling end plate on the upper ends of the left and right side walls of the cab, and A third step of fastening and fixing the ends on the central plate of the ceiling by fastening and fixing in the cab, and a third step of fastening and fixing the ceiling end plate and the upper ends of the left and right side walls of the cab outside the cab. The characteristic method of renovating the ceiling of the elevator car room. 2. A fourth step of connecting, via a connector, lighting fixtures respectively attached to the ceiling center plate and the ceiling end plate, and the lighting device and the fastening member used in the second step. The method for refurbishing an elevator cab ceiling according to claim 1, further comprising a fifth step of attaching a covering illumination plate to the ceiling center plate and the ceiling end plate from below. 3. In the first step, a pair of support members are fixed to the upper end of the front wall and the upper end of the rear wall of the cab by extending the ends in the center direction, and the ends of the support members and the ceiling. The method for repairing the ceiling of an elevator cab according to claim 1 or 2, wherein both ends of the central plate are overlapped and fixed from above by a fastening member. 4. A method of repairing an elevator cab room ceiling, wherein a rectangular ceiling plate divided into a ceiling center plate and a ceiling end plate is attached to a car room from which the ceiling is removed. A first step of fastening and fixing by passing over the upper end of the front wall and the upper end of the rear wall of the cab, placing one end of the ceiling end plate on the upper ends of the left and right side walls of the cab, and A second step of bringing the end into contact with the ceiling center plate and fastening and fixing this abutting portion outside the cab; and a second step of fastening and fixing the ceiling end plate and the upper ends of the left and right side walls of the cab outside the cab. 3. The method for repairing the ceiling of an elevator car room, which comprises the step 3).