JP5901442B2 - Elevator handrail attachment method and handrail device in car - Google Patents

Description

  The present invention relates to a method for attaching a handrail in an elevator car and a handrail device in a car that enable easy attachment of the handrail in the car from the inside of the car room when refurbishing the car room of an existing elevator.

  In general, when installing a new handrail in the elevator car room renovation work, remove the existing elevator car wall from the outside of the car room wall and fix it with a mounting bracket. There was a need to do the work.

  On the other hand, in order to make it possible to attach handrails from the inside of the cage, a special rotary type has been installed at three locations on the existing wall (6 locations on both sides of the handrail). There have been proposed a method and a method for attaching a handrail bracket to a nut portion and an in-car handrail device by providing openings into which the nuts can be inserted, inserting a rotary nut into each opening, rotating the nut portion to fix it to the wall, For example, see Patent Document 1).

JP 2008-285253 A

  According to the conventional elevator handrail mounting method and elevator handrail device according to the method and the handrail device described in Patent Document 1, it is possible to attach the handrail from the interior of the cage, but one side of the existing wall. Since it is necessary to provide three openings (6 places in total) and to manufacture a special rotary nut, there is a problem that a great deal of cost and labor are required.

  The present invention has been made to solve the above-described problems, and is easier to manufacture than a special rotary nut, with only one opening on each side (two in total) for opening an existing wall. It is an object of the present invention to provide an elevator handrail mounting method and an elevator handrail device that can reduce work labor (working time) and reduce costs by using inexpensive clip nuts and handrail attachments.

The method of attaching an elevator handrail in an elevator car according to the present invention is a method for attaching a handrail in the car from the inside of the wall of an existing elevator car, and is formed by opening an I-shaped or H-shaped notch penetrating the outside of the wall. An opening processing step for forming a pair of bent portions and providing a through hole in each of the pair of bent portions, and a pair of the bent portions at a right angle from the inside to the outside of the cage along the notch A step of forming an opening in the wall by pushing and bending; a step of attaching a clip nut to a position of a through hole at each open end of the pair of bent parts; and a frame-shaped wall fastening part having a through hole; A handrail mounting metal which is arranged so as to have a gap between the through hole of the wall fastening portion and includes a handrail fastening portion in which a screw hole for attaching the handrail in the cage is formed is opened. inset, before By utilizing the gap, through the through hole and clip nuts handrail mounting gold, the steps of the bolt fastened to the bent portion of the handrail mounting gold handrail mounting step of screwing the cage inside handrail into the screw hole of the handrail fastening portion And.

  According to the present invention, an H-shaped or I-shaped cut is pushed and bent from the basket chamber to the outside in the left-right direction or the vertical direction at right angles, and the clip nut is attached to the through hole at the open end of the bent portion. By bolting the handrail attachment bracket to the bent portion via the clip nut and attaching the in-car handrail to the handrail fastening portion of the handrail attachment, the in-car handrail can be easily and inexpensively attached in a short time.

It is a front view which shows the state which looked at the one side part of the elevator handrail apparatus of the elevator to which Embodiment 1 of this invention was applied from the cage interior. It is a side view which shows the state which looked at the handrail apparatus in a cage of FIG. 1 from the right side. It is a top view which shows the state which looked at the handrail apparatus in a cage of FIG. 1 from the top. It is a front view which shows the opening process step to the existing wall by Embodiment 1 of this invention. It is a perspective view which shows the formation step of the opening by Embodiment 1 of this invention. It is a perspective view which shows the attachment step of the clip nut to the bending part by Embodiment 1 of this invention. It is a side view which expands and shows the clip nut by Embodiment 1 of this invention. It is a perspective view which shows the attachment step of the handrail attachment metal to the opening by Embodiment 1 of this invention. It is a 3rd page figure which shows the handrail attachment metal by Embodiment 1 of this invention. It is a perspective view which shows the attachment step of the handrail in a cage to the handrail attachment metal by Embodiment 1 of this invention. It is a perspective view which shows the film coating step to the opening by Embodiment 1 of this invention. It is a front view which shows the state which looked at the one side part of the elevator handrail apparatus of the elevator to which Embodiment 2 of this invention was applied from the cage interior. It is a side view which shows the state which looked at the handrail apparatus in a cage of FIG. 12 from the right side. It is a top view which shows the state which looked at the handrail apparatus in a cage of FIG. 12 from the top. It is a front view which shows the opening process step to the existing wall by Embodiment 2 of this invention. It is a perspective view which shows the formation step of the opening by Embodiment 2 of this invention.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a front view showing a state in which one side portion of an in-car handrail device for an elevator to which an in-car handrail attachment method according to Embodiment 1 of the present invention is applied is viewed from inside a car room.
2 is a side view showing a state in which the handrail device in the car of FIG. 1 is viewed from the right side, and FIG. 3 is a plan view showing a state in which the handrail device in the car of FIG.

In FIG. 1, the in-car handrail 5 is fixed by a screw 12 to a handrail fastening portion 41 of a handrail attachment 4 fixed to the opening 10 a in an opening 10 a formed in a wall 10 of an existing car.
2 and 3, the handrail attachment metal 4 is fixed to the clip nut 2 fixed to the bent portion 1 via the hexagon bolt 3 in the bent portion 1 that forms the opening 10 a of the wall 10. .

FIG. 4 is a front view showing an opening processing step according to Embodiment 1 of the present invention, and shows a state before the opening 10a is formed in the wall 10. FIG.
FIG. 5 is a perspective view showing a step of forming the opening 10a according to the first embodiment of the present invention.
6 is a perspective view showing a step of attaching the clip nut 2 to the bent portion 1 according to Embodiment 1 of the present invention, and FIG. 7 is a side view showing the clip nut 2 in an enlarged manner.

FIG. 8 is a perspective view showing a step of attaching the handrail attachment metal 4 to the opening 10a according to Embodiment 1 of the present invention, and FIG. 9 is a three-view diagram showing the handrail attachment metal 4.
FIG. 10 is a perspective view showing a step of attaching the in-car handrail 5 to the handrail attachment metal 4.
FIG. 11 is a perspective view showing a film covering step on the opening 10a, and shows a state in which the periphery of the opening 10a serving as a mounting portion of the handrail 5 in the cage is covered with the film 6.

  Here, as Embodiment 1 of the present invention, with reference to FIGS. 4 to 11, an I-shaped cut 1a is formed in an existing car wall 10 to form an opening 10a, and a handrail fixed to the opening 10a. A method of attaching the handrail 5 in the basket to the attachment metal 4 will be described.

  First, in FIG. 4, the operator decides the position to attach the cage handrail 5 from the inside of the wall 10, and opens the I-shaped cut 1 a penetrating to the outside of the wall 10, so that a pair of bent portions 1 is formed. Are determined, and two through holes 1b are formed in the bent portion 1 region.

Next, in FIG. 5, the bent portion 1 is pushed and bent at a right angle along the notch 1 a and opened to the outside of the wall 10 to form an opening 10 a.
Subsequently, in FIG. 6, the clip nuts 2 are attached to the four positions of the open end portion of the bent portion 1 so as to coincide with the positions of the four through holes 1 b.

As shown in FIG. 7, the clip nut 2 includes a clip part 21 having an urging force to be sandwiched, a nut part 22 attached integrally to the clip part 21, and a coupling for joining the clip part 21 and the nut part 22. Part 23.
A through hole 21 a and a screw hole 22 a are formed in the clip portion 21 and the nut portion 22 so as to communicate with the through hole 1 b of the bent portion 1, respectively.

Next, in FIG. 8, the handrail mounting metal 4 is fitted into the opening 10 a of the wall 10, and the hexagon bolt 3 is inserted into the through hole 1 b of the bent portion 1, the through hole 21 a and the screw hole 22 a of the clip nut 2. By fastening the frame, the frame-shaped wall fastening portion 42 is fixed to the bent portion 1, and the handrail attachment 4 is fixed to the opening 10a.
At this time, by using the hexagon bolt 3, the fastening work from the inside of the wall 10 is enabled through the gap between the handrail fastening part 41 and the wall fastening part 42.

As shown in FIG. 9, the handrail attachment metal 4 includes a U-shaped handrail fastening portion 41 to which the in-car handrail 5 is attached, and a frame-shaped wall fastening portion 42 fastened to the bent portion 1 and the clip nut 2. And is constituted by.
The handrail fastening portion 41 is fixed to the inside of the wall fastening portion 42 by welding.

The handrail fastening portion 41 is formed with a screw hole 41a into which the screw 12 is inserted, and the wall fastening portion 42 is formed with a through hole 42a into which the hexagon bolt 3 is inserted.
The wall fastening portion 42 realizes a substantially square frame shape by welding two L-shaped plate members.

Next, in FIG. 10, the handrail 5 in the cage is fastened with the screw 12 to the handrail attachment 4 fixed to the opening 10 a.
Here, only one side portion of the in-car handrail 5 is shown, but the other side of the in-car handrail 5 is similarly fastened to the opening of the wall 10.

  Finally, considering the improvement of the appearance, in FIG. 11, the opening 10 a of the wall 10 is covered with an opaque film 6 so that the handrail attachment 4 cannot be seen from the inside of the basket.

  As described above, in the elevator handrail attachment method according to the first embodiment (FIGS. 4 to 11) of the present invention, the inner handrail 5 is attached from the inside of the wall 10 of the existing elevator car. Opening step of forming a pair of bent portions 1 by opening I-shaped or H-shaped cuts 1a penetrating outside the wall 10 and providing through holes 1b in each of the pair of bent portions 1 (FIG. 4) and a step of bending the pair of bent portions 1 along the cut 1a from the inside of the cage toward the outside at right angles to form an opening 10a in the wall 10 (FIG. 5), and a pair of folding portions. A step (FIG. 6) for attaching the clip nut 2 to the position of the through hole 1b at each open end of the bent portion 1 and a handrail fastening portion 41 in which a screw hole 41a is formed and a through hole 42a are formed. Fit handrail mounting bracket 4 into opening 10a And a step (FIG. 8) of bolting the handrail mounting bracket 4 to the bent portion 1 via the through hole 42a of the handrail mounting bracket 4 and the clip nut 2, and a handrail in the cage to the screw hole 41a of the handrail fastening portion 41. And a handrail attachment step (FIG. 10) for screwing 5.

  Thus, the number of openings 10a formed in the wall 10 for mounting the handrail 5 in the cage can be reduced to two, and the notch 1a and the through hole in the wall 10 can be obtained without using a special rotary nut. The handrail attachment metal which is simply created only by the forming step (FIG. 4) of 1b, the opening step of the bent portion 1 (FIG. 5), the welding process of the handrail attachment metal 4 and the fastening step to the opening 10a (FIG. 8). Since the handrail attaching portion 41 (FIG. 10) can be realized easily and inexpensively in a short time using the handrail fastening portion 41, the manufacturing cost and the working time can be reduced.

  Further, following the handrail attaching step (FIG. 10), the appearance can be improved by providing a film covering step (FIG. 11) for covering the opening 10a of the wall 10 with the opaque film 6.

  Further, in the opening processing step (FIG. 4), two through holes 1b of the pair of bent portions 1 are provided at two positions that are symmetric with respect to opposite sides of each bent portion 1 (total 4). In the step of attaching the clip nut 2 (FIG. 6), four clip nuts 2 are attached corresponding to the through holes 1b of the pair of bent portions 1, and the handrail attaching metal 4 is bolted. In the step, four through-holes 42 a of the handrail attachment metal 4 are formed, and the handrail attachment metal 4 is fixed to the pair of bent portions 1 at four points.

The handrail mounting bracket 4 includes a handrail fastening portion 41 having a screw hole 41a and a frame-shaped wall fastening portion 42 having a through hole 42a. The handrail fastening portion 41 has a U-shape. The inner side of the wall fastening portion 42 is integrated by welding.
Moreover, the screw hole 41a of the handrail fastening part 41 is provided in two places of the center part of a U-shape.

  Thereby, when fastening the handrail attachment metal 4 to the opening 10a, the fastening strength of the handrail attachment metal 4 is increased, so that the attachment strength of the in-car handrail 5 to the handrail fastening portion 41 can be increased.

  In addition, the wall fastening portion 42 realizes a frame shape by bending two plate members formed with through holes 42a at right angles into L-shapes and welding each end of the two L-shape plate members. Therefore, the wall fastening portion 42 can be easily manufactured.

  Further, in the step of fastening the handrail mounting bracket 4 with the bolt (FIG. 8), the handrail mounting bracket 4 is fixed to the bent portion 1 via the hexagon bolt 3 fastened to the clip nut 2, so from the inside of the cage. The workability can be improved.

  Further, the elevator handrail device according to the first embodiment (FIGS. 1 to 3) of the present invention is an in-car handrail device attached from the inside of the existing elevator car wall 10. An opening 10a formed by a pair of bent portions 1 opened to the outside, a handrail attachment metal 4 fitted into the opening 10a and fixed to the pair of bending portions 1, and an integrated handrail attachment metal 4. And a handrail 5 in the cage fixed to the handrail fastening portion 41.

As a result, in the car room renovation work, when the car handrail 5 is newly attached to the existing wall 10, the car handrail 5 can be attached only by the work from the car room, and it is shorter than the conventional apparatus. Thus, the elevator handrail device can be attached easily and inexpensively.
Similarly to the above, the appearance can be improved by providing the opaque film 6 that covers the opening of the wall.

Embodiment 2. FIG.
In the first embodiment, the I-shaped cut 1a is opened in the wall 10 in the opening processing step (FIG. 4), and the bent portion 1 is opened in the left-right direction in the opening forming step (FIG. 5). Although 10a is formed, as shown in FIGS. 15 and 16, an opening 10a may be formed by opening an H-shaped cut 1a and opening the bent portion 1 in the vertical direction.

Hereinafter, Embodiment 2 of the present invention will be described with reference to FIGS.
FIG. 12 is a front view showing a state in which one side portion of the elevator handrail device of the elevator to which the second embodiment of the present invention is applied is viewed from the inside of the cage.
13 is a side view showing a state in which the handrail device in the car of FIG. 12 is viewed from the right side, and FIG. 14 is a plan view showing a state in which the handrail device in the car of FIG.

FIG. 15 is a front view showing an opening processing step for the existing wall 10 according to the second embodiment of the present invention, and FIG. 16 is a perspective view showing a step for forming the opening 10a according to the second embodiment of the present invention. is there.
12 to 16, the same components as those described above are denoted by the same reference numerals as those described above, and detailed description thereof is omitted.

  In this case, when the opening 10a is formed in the wall 10, an H-shaped cut 1a (see FIG. 15) is opened in the wall 10, and the bent portion 1 is opened in the vertical direction along the cut 1a (see FIG. 16). Only the point differs from the first embodiment.

That is, first, in FIG. 15, an H-shaped cut 1a (see FIG. 15) is opened in the wall 10, and then in FIG. 16, the bent portion 1 is bent at a right angle along the cut 1a. The part 1 is opened up and down to form an opening 10a.
Thereafter, similarly to the above, the handrail attachment metal 4 is fixed to the opening 10a, and the in-car handrail 5 is fastened to the handrail fastening portion 41 integral with the handrail attachment gold 4 via the screw 12.

  With the above configuration, the same effects as those of the first embodiment are obtained, and the stress in the vertical direction that is easily applied to the handrail 5 in the cage is dispersed throughout the bent portion 1 to increase the strength. The possibility that the opening 10a is buckled is lower than that in the first embodiment.

  1 bending part, 1a notch, 1b through hole, 2 clip nut, 3 hexagon bolt, 4 handrail mounting bracket, 5 handrail in cage, 6 film, 10 wall, 10a opening, 12 screw, 21 clip part, 21a through hole, 22 nut part, 22a screw hole, 23 joint part, 41 handrail fastening part, 41a screw hole, 42 wall fastening part, 42a through hole.

Claims (9)

A method of attaching a handrail inside the cage from the inside of the existing elevator car wall,
An opening step of forming a pair of bent portions by opening an I-shaped or H-shaped cut that penetrates the outside of the wall, and providing a through hole in each of the pair of bent portions;
A step of bending the pair of bent portions perpendicularly from the inside to the outside of the cage along the notch to form an opening in the wall;
Attaching a clip nut to the position of the through hole at the open end of each of the pair of bent portions;
A frame-shaped wall fastening portion having a through-hole, and a handrail fastening portion that is disposed so as to have a gap between the through-hole of the wall fastening portion and has a screw hole for attaching the handrail in the cage ; A handrail mounting metal including the above is fitted into the opening, and the handrail mounting metal is bolted to the bent portion through the through hole of the handrail mounting metal and the clip nut using the gap. Steps,
A handrail attachment step of screwing the handrail in the cage into the screw hole of the handrail fastening portion;
A method for attaching a handrail in an elevator car, comprising:   The method of claim 1, further comprising a film covering step of covering the opening of the wall with an opaque film following the handrail attaching step. In the opening processing step, two through-holes of the pair of bent portions are formed at positions that are symmetrical with respect to opposite sides of each bent portion, respectively.
In the step of attaching the clip nut, four clip nuts are attached corresponding to the through holes of the pair of bent portions,
In the step of bolting the handrail mounting bracket, four through holes are formed in the handrail mounting bracket, and the handrail mounting bracket is fixed at four points with respect to the pair of bent portions. The method for attaching a handrail in an elevator car according to claim 1 or 2. 4. The elevator according to claim 1 , wherein the handrail fastening portion has a U-shape and is integrated by welding inside the wall fastening portion. 5. How to install a handrail in the basket.   The wall fastening portion realizes a frame shape by bending the two plate members formed with the through-holes at right angles into L-shapes and welding respective end portions of the two L-shaped plate members. The method for attaching a handrail in an elevator car according to claim 4, wherein:   The method for attaching the handrail in the elevator car according to claim 4 or 5, wherein the screw holes of the handrail fastening portion are provided at two locations in the center portion of the U-shape.   7. In the step of fastening the handrail mounting bracket with bolts, the handrail mounting bracket is fixed to the bent portion via a hexagon bolt fastened to the clip nut. The elevator handrail mounting method for an elevator according to any one of the above. An in-car handrail device attached from the inside of an existing elevator car wall,
An opening formed by a pair of folds open to the outside of the wall;
A frame-shaped wall fastening portion having a through-hole, and a handrail fastening portion that is disposed so as to have a gap between the through-hole of the wall fastening portion and has a screw hole for attaching a handrail in the cage. A handrail attachment metal fixed to the pair of bent portions in a state in which the wall fastening portion is fitted in the opening;
A basket in handrails fixed to the handrail fastening portion of the handrail mounting gold integrally,
An elevator handrail device characterized by comprising:   The elevator handrail device according to claim 8, further comprising an opaque film that covers the opening of the wall.

Images