JP2009263096A - Cage wall of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cage wall of an elevator capable of reducing the rotation of a nut during the fastening of the cage wall. <P>SOLUTION: Adjacent cage wall panels 2 are fastened to each other by using a fastener 4 comprising a nut and a square neck bolt 5 driven in the nut beforehand since each cage wall panel has a round hole 8a formed at an installation surface 3 of the cage wall panel 2, a square hole 8b formed at the installation surface 3 and having a width shorter than the inner diameter of the round hole 8a, and a connecting portion 8c that connects the round hole 8a and the square hole 8b and has a width equal to or shorter than the width of the square hole 8b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator cab wall that fastens adjacent cab wall panels.

  As an elevator cab wall, a method of fastening a cab wall panel using square root bolts, spring washers, and high nuts has been proposed. In such a cab wall, a square hole having substantially the same size as the square root portion of the square root bolt is provided on the mounting surface of the cab wall panel. For this reason, in the fastening operation using the square root bolt, the spring washer, and the high nut, first, the square root bolt is inserted into the square hole from the back side of one of the cab wall panel mounting surfaces. Next, a spring washer and a high nut are inserted from the surface side of one cab wall panel mounting surface. And a high nut is rotated with fastening tools, such as a spanner, (for example, refer to patent documents 1).

Japanese Utility Model Publication No. 55-74782

  However, the thing of patent document 1 needs to screw in a high nut from the bolt part front-end | tip of a square root bolt to the square root part vicinity in order to pinch | mount between attachment surfaces. For this reason, when the hoistway space on the back surface side of the car room wall panel is narrow, workability is poor and it takes time for fastening work. Also, if the cab wall panel is thin, a ratchet wrench cannot be used due to space constraints. In other words, a high nut must be screwed in with a normal fastening tool such as a spanner. In this case, the fastening tool interferes with the cab wall panel. For this reason, the amount of rotation of the fastening tool cannot be increased, and workability is further deteriorated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator cab wall that can reduce the number of rotations of a nut during fastening operation of the cab wall. It is.

  An elevator cab wall according to the present invention includes a round hole provided in a mounting surface of a cab wall panel, a square hole provided in the mounting surface and having a width shorter than an inner diameter of the round hole, and the round A hole and the square hole are connected, and a connecting portion having a width equal to or smaller than the width of the square hole is provided.

  According to this invention, the rotation speed of the nut at the time of the fastening operation | work of a cage room wall can be reduced.

  The best mode for carrying out the present invention will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
FIG. 1 is a cross-sectional view showing the entire cab in which an elevator cab wall is used in Embodiment 1 of the present invention.

  In FIG. 1, 1 is a cab. A plurality of car room wall panels 2 are erected on the edge of the car room 1. A mounting surface 3 is provided on the side edge of the cab wall panel 2. These mounting surfaces 3 are provided on the hoistway wall (not shown) side of the car room wall panel 2. Then, using this mounting surface 3, the adjacent cab wall panels 2 are fastened together.

Next, the fastening method of the cab wall panel 2 will be described in detail with reference to FIGS.
FIG. 2 is a view for explaining a method of fastening the elevator cab wall according to the first embodiment of the present invention, and shows the cab wall before fastening by the fastener. More specifically, FIG. 2A is an enlarged view of a portion A in FIG. FIG. 2B is a front view corresponding to FIG.

  FIG. 3 is a view for explaining a method of fastening the elevator cab wall according to the first embodiment of the present invention, and shows the cab wall being fastened by the fastener. More specifically, FIGS. 3A and 3B correspond to FIGS. 2A and 2B, respectively. FIG. 4 is a view for explaining a method of fastening the elevator cab wall according to the first embodiment of the present invention, and shows the cab wall after fastening by a fastener. More specifically, FIGS. 4A and 4B correspond to FIGS. 2A and 2B, respectively.

  As shown in FIG. 2 (a), the cab wall panel 2 side edge is formed in a substantially J-shaped cross section. A mounting surface 3 is formed on the J-shaped intermediate connecting portion. Before the fastening operation, the fastener 4 is arranged on one side of the mounting surface 3. The fastener 4 includes a square root bolt 5, a spring washer 6, and a high nut 7.

  A head 5 a is provided at one end of the square root bolt 5. A square root 5b is provided below the neck of the head 5a. The corner portion 5b has a rectangular outer peripheral surface. A bolt portion 5c is provided on the other end side of the square root bolt 5 with respect to the square root portion 5b. The spring washer 6 passes through the bolt portion 5c. The high nut 7 is screwed into the bolt portion 5 c on the other end side of the square root bolt 5 with respect to the spring washer 6. The fastener 4 having such a configuration exposes the square root 5b of the square bolt 5. More specifically, the fastener 4 is temporarily assembled so that the distance between the square root bolt 5 seating surface and the spring washer 6 is X. This distance X is set slightly wider than the total thickness Y of both mounting surfaces 3.

  On the other hand, the attachment surface 3 is provided with a fastening portion 8 as shown in FIG. The fastening portion 8 has a keyhole shape. More specifically, the fastening portion 8 includes a round hole 8a, a square hole 8b, and a connecting portion 8c. The square hole 8b is a square hole. The square hole 8b has a width shorter than the inner diameter of the round hole 8a. The connection part 8c consists of a slit part which connects the round hole 8a and the square hole 8b. The connecting portion 8c has a width shorter than the width of the square hole 8b. A plurality of fastening portions 8 having such a configuration are provided side by side in the vertical direction of the mounting surface 3.

  In addition, the outer diameter of the head 5a of the square root bolt 5 is slightly smaller than the inner diameter of the round hole 8a. Moreover, the bolt part 5c of the square root bolt 5 is slightly smaller than the width of the connecting part 8c. Further, the width and height of the square root portion 5b of the square root bolt 5 are slightly smaller than the width and height of the square hole 8b.

  Then, using the fastening portion 8 and the fastener 4, the mounting surfaces 3 of the adjacent cab wall panels 2 are fastened. More specifically, as shown in FIG. 2, the mounting surfaces 3 of the adjacent cab wall panels 2 are arranged to face each other. At this time, the round holes 8 a, the square holes 8 b, and the connecting portions 8 c of the both mounting surfaces 3 are overlapped with each other in the direction orthogonal to the both mounting surfaces 3. And the head 5a and the square root part 5b of the square root bolt 5 are penetrated by the round hole 8a from the one side of an attachment surface to the other side.

  Thereafter, as shown in FIG. 3, the bolt portion 5c of the square root bolt 5 is guided to the connecting portion 8c. Thereby, the fastener 4 is moved downward. Thereafter, the fastener 4 is moved from the other side of the mounting surface 3 to one side. Thereby, the square root part 5 b of the square bolt 5 is fitted into the square hole 8 b from the other side of the mounting surface 3.

  Thereafter, as shown in FIG. 4, the high nut 7 is rotated on one side of the mounting surface 3 by a fastening tool such as a spanner. At this time, the square root portion 5b of the square root bolt 5 contacts the four surfaces 9a to 9d of the square hole 8b. By this contact, the square root bolt 5 is not rotated, the high nut 7 is screwed, and both the mounting surfaces 3 are sandwiched between the head 5 a of the square root bolt 5 and the high nut 7. Moreover, also in the other fastening part 8, both the attachment surfaces 3 are inserted | pinched by the same operation | movement. Thereby, fastening of both the attachment surfaces 3 is completed. And other cab room wall panels 2 are also fastened similarly. Thereby, the fastening of the car room wall panels 2 of the whole car room 1 is completed.

  According to the first embodiment described above, when the cab wall panels 2 are fastened together, the fastening portion 8 and the fastener 4 including the square root bolt 5 into which the high nut 7 is screwed in advance are used. The attachment surfaces 3 of the adjacent cab wall panels 2 can be fastened. For this reason, the rotation speed of the high nut 7 in a fastening tool can be made small. That is, the workability of the car room wall panel 2 can be improved.

  The mounting surface 3 is provided on the hoistway wall side of the car room wall panel 2. For this reason, it is possible to easily perform the fastening operation even in a narrow space between the car room wall panel 2 and the hoistway wall while smoothing the surface of the car room wall panel 2 inside the car.

  Furthermore, the square hole 8b is provided below the round hole 8a. For this reason, using the dead weight of the fastener 4, the fastener 4 can be moved from the round hole 8a side to the square hole 8b side. For this reason, workability | operativity can be improved more.

  In addition, the square root part 5b of the square root bolt 5 comes into contact with the four surfaces 9a to 9d of the square hole 8b, the square root bolt 5 is not rotated, and the high nut 7 is screwed. For this reason, the high nut 7 can be fastened in a state where the square root bolt 5 is reliably prevented from rotating.

  In the first embodiment, the head 5a of the square root bolt 5 is disposed on the other back side of the mounting surface 3, and the high nut 7 is disposed on one side of the mounting surface 3, that is, the other side of the mounting surface 3. The case where it screwed in from the surface side was demonstrated. However, even if the arrangement relationship between the head 5a of the square root bolt 5 and the high nut 7 is reversed, the same effect can be obtained.

  Furthermore, it goes without saying that the operability of the elevator cab wall with such a configuration is improved not only during fastening work but also during disassembly work.

Embodiment 2. FIG.
FIG. 5 is a front view of an elevator cab wall according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or an equivalent, and description is abbreviate | omitted.

In the first embodiment, the connecting portion 8c has a width shorter than the width of the square hole 8b. On the other hand, in the second embodiment, the connecting portion 8c is connected to the round hole 8a with the same width as the square hole 8b. In this case, the square root portion 5b of the square root bolt 5 comes into contact with the three surfaces 9a to 9c of the square hole 8b, the square root bolt 5 is not rotated, and the high nut 7 is screwed.

  According to the second embodiment described above, the square root portion 5b of the square root bolt 5 is easily fitted into the square hole 8b as compared with the first embodiment.

Embodiment 3 FIG.
FIG. 6 is a view for explaining a fastener used for the elevator cab wall in the first and second embodiments of the present invention. FIG. 7 is a view for explaining a fastener used for an elevator cab wall according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or an equivalent, and description is abbreviate | omitted.

  In the present invention, the square root bolt 5, the spring washer 6, and the high nut 7 need to be assembled in advance. Here, as shown in FIG. 6, the side wall portion of the cab wall panel 2 is formed in a substantially J-shaped cross section. And the edge part 2a of the cab wall panel 2 side edge part is formed in the height of h from the attachment surface 3. As shown in FIG. The high nut 7 abuts on the mounting surface 3 and is tightened by a fastening tool such as a spanner. For this reason, the height of the high nut 7 needs to be larger than the height h of the end 2a at the side edge of the car room wall panel 2. In this case, as shown in FIG. 6, the general high nut 7 has an incomplete threaded portion at the root and a complete threaded portion toward the tip. For example, when the height of the high nut 7 is about 20 mm, there is a complete screw portion of about 19 mm excluding an incomplete screw portion of about 1 mm at the base.

  On the other hand, in the high nut 7 of the third embodiment, as shown in FIG. 7, the cylindrical through-hole 10 having an inner diameter larger than the outer diameter of the bolt portion 5c and having a height of about 15 mm is It is provided on the head 5 a side of the root bolt 5. The bolt portion 5 c is inserted into the through hole 10. The complete screw portion 11 is connected to the through hole 10 on the opposite side of the head 5 a of the square root bolt 5. The complete threaded portion 11 is left about 5 mm, the same height as the standard nut, and the tip of the bolt portion 5c is screwed.

  According to the third embodiment described above, it is not necessary to rotate the high nut 7 many times when the square root bolt 5, the spring washer 6, and the high nut 7 are assembled. That is, the assembly workability of the fastener 4 can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional view which shows the whole cab where the cab wall of the elevator in Embodiment 1 of this invention is utilized. It is a figure for demonstrating the fastening method of the elevator cab room wall in Embodiment 1 of this invention, Comprising: It is a figure which shows the cab wall before fastening by a fastener. It is a figure for demonstrating the fastening method of the elevator cab room wall in Embodiment 1 of this invention, Comprising: It is a figure which shows the cab wall during fastening by a fastener. It is a figure for demonstrating the fastening method of the elevator cab room wall in Embodiment 1 of this invention, Comprising: It is a figure which shows the cab wall after the fastening by a fastener. It is a front view of the cab wall of the elevator in Embodiment 2 of this invention. It is a figure for demonstrating the fastener utilized for the cab wall of the elevator in Embodiment 1 and 2 of this invention. It is a figure for demonstrating the fastener utilized for the cab wall of the elevator in Embodiment 3 of this invention.

Explanation of symbols

1 car room, 2 car room wall panel, 2a end, 3 mounting surface, 4 fastener,
5 Square root bolt, 5a Head, 5b Square root, 5c Bolt, 6 Spring washer,
7 High nut, 8 Fastening part, 8a Round hole, 8b Square hole, 8c Connection part,
9a-9d surface, 10 through hole, 11 complete thread

Claims (6)

A round hole provided in the mounting surface of the cab wall panel;
A square hole provided on the mounting surface and having a width shorter than the inner diameter of the round hole;
Connecting the round hole and the square hole, and having a width equal to or less than the width of the square hole;
An elevator cab wall characterized by comprising   The elevator cab wall according to claim 1, wherein the connecting portion has a width shorter than a width of the square hole. The head has an outer diameter smaller than the inner diameter of the round hole and a bolt that is thinner than the width of the connecting portion, and the head is attached to the mounting surface in a state where a square root is fitted into the square hole. Square root bolts arranged on one side of the front and back surfaces of
From the other side of the front and back surfaces of the mounting surface, a nut screwed into the bolt part,
The elevator cab wall according to claim 1 or 2, wherein the elevator cab wall is provided.   The elevator cab wall according to any one of claims 1 to 3, wherein the mounting surface is provided on a hoistway wall side of the cab wall panel.   The elevator cab wall according to claim 1, wherein the square hole is provided below the round hole. The nut is
A cylindrical through hole provided on the head side, having an inner diameter larger than the outer diameter of the bolt part, and through which the bolt part is inserted;
A threaded portion connected to the through-hole on the opposite side of the head and screwed with a tip of the bolt portion;
The elevator cab wall according to any one of claims 3 to 5, further comprising:

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