JP2000304022A - Plate-shaped mounting device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce deformation of a fastening area of a plate-like fastened body directly fastened, and to improve appearance. SOLUTION: A plate-shaped workpiece 7 directly fastened is maintained at a constant fastening force by fastening stress reducing means 11, and stress applied to fastening is reduced to suppress deformation of a fastening area to a small extent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mounting a plate-shaped body used for a panel panel such as a wall panel in a car room of an elevator or an opening / closing door of a landing.

[0002]

2. Description of the Related Art Conventionally, decorative panels such as a design panel or a mirror panel having a high surface glossiness have been used for component panels such as a wall panel in a car room of an elevator and an opening / closing door of a landing to improve quality. Have been.

[0003] Decorative panels such as design panels and mirror-finished panels are not fastened directly by screwing from a place where the plate thickness is relatively thin, but are fastened using an edge frame or the like.

[0004]

Decorative panels such as design panels and mirror-finished panels, when directly screwed, are relatively thin in thickness, so that the fastening force concentrates in the fastening area and deformation occurs. When deformation occurs, the appearance deteriorates. Therefore, it is common to use an edge frame to disperse the fastening force.

[0005] However, since the edge frame is made exclusively for each elevator, there is no flexibility and the cost is increased. Also, the number of parts increases, which is not desirable in terms of cost and man-hours for parts management.

Accordingly, an object of the present invention is to provide a plate-like body mounting device which does not deform without using an edge frame.

[0007]

According to a first aspect of the present invention, there is provided a mounting device for fastening a plate-shaped object to be fastened, wherein a fastening region of the object to be fastened is provided. In order to suppress the deformation, the fastening force is reduced by the fastening stress reducing means and the stress applied to the fastening is reduced.

Thus, the plate-shaped object to be fastened directly after completion of the attachment is maintained at a constant fastening force by the fastening stress reducing means, and the stress applied to the fastening is reduced.
Deformation of the fastening region of the body to be fastened can be kept small. As a result, the quality does not deteriorate.

According to a second aspect of the present invention, the fastening stress reducing means includes a fastening member penetrating through the fastening mounting hole of the body to be fastened, an elastic body provided in the fastening member, and the elastic body. And an elastic-body-fixed support member that reduces the stress applied to the fastening of the body to be fastened and keeps the fastening force constant.

Thus, the elastic body is compressed by being pressed by a predetermined amount by the elastic body fixing support member, and a constant fastening force can be secured by the elastic reaction force, and the stress applied to the fastening can be reduced. .

According to a third aspect of the present invention, the elastic body is a spring or rubber.

As a result, the elastic body is pressed,
The specified amount is reliably compressed, and an elastic reaction force corresponding to the pressing is obtained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be specifically described with reference to FIGS.

FIG. 3 shows a car room of an elevator. An entrance 1 is located at the front, a ceiling 3 is located at the upper side, a floor 5 is located at the lower side, and an inner wall surface is formed by a decorative panel 7 such as a design panel or a mirror panel. .

As shown in FIGS. 1 and 2, the decorative panel 7 is directly fastened to the car side plate 9 forming the peripheral wall of the cab by fastening pins 13 constituting fastening stress reducing means 11. The fastening pin 13 penetrates the decorative panel 7 and the fastening mounting hole 15 provided in the car side plate 9, and one end is a head 17 protruding to the surface side of the decorative panel 7. The other end has a structure having an elastic body fixing support member 21 for keeping the spring pressure of the coiled spring 19 as an elastic body constant.

That is, the fastening pin 1 protruding from the car side plate 9
The end of 3 is a shaft cylinder portion 25 having a small diameter,
7.

The shaft cylinder 25 has a support plate 29 for pressing the coiled spring 19 and a stopper ring 30 for regulating the axial movement of the support plate 29. Are engaged with the circumferential engagement grooves 31 provided in the boss. Thereby, the support plate 2
One is a step surface 27 and the other is a stopper ring 3.
0, respectively, so that the movement in the axial direction is restricted.

The coiled spring 19 is inserted until the support plate 29 comes into contact with the step surface 27 and the stopper ring 30 is inserted.
As a result, a fixed pressing force is always applied to compress L2, and a constant fastening force is ensured.

The strength F of the fastening force is given by F = K (L1-L2) according to Hooke's law. Here, since (L1-L2) regulates the support plate 29 pressing the spring 19 to a fixed position by the step surface 27, the fastening force is always constant.

Therefore, by selecting the elastic modulus K of the spring 19 and the natural length L1 of the spring 19 according to the surface rigidity and the mounting dimensions of the decorative panel 7, it is possible to reduce the fixed fastening force and the stress applied to the fastening. Becomes

The decorative panel 7 configured as described above is directly fastened to the car side plate 9 by the fastening pin 13 penetrating the fastening mounting hole 15 and the coil spring 19. At this time, the fastening area of the decorative panel 7 is always kept at a constant fastening force by the coiled spring 19, the stress applied to the fastening is reduced, and the deformation is suppressed to a small value. As a result,
There is no reduction in quality.

As shown in FIG. 4, an embodiment in which the fastening pin 13 is integrally fixed and supported on the back side of the decorative panel 7 may be adopted.

In the case of this embodiment, the head 17 of the fastening pin 13 is not exposed on the panel surface of the decorative panel 7, so that the appearance is very preferable.

FIGS. 5, 6, and 7 show a second embodiment of the mounting device.

That is, on the back side of the decorative panel 7, a mounting bolt 33 which passes through the fastening mounting hole 15 of the car side plate 9 is integrally fixed and supported. A sleeve 41 that forms a step surface 39 serving as a stopper surface is fitted into the mounting bolt 33 so that the nut 37 screwed to the thread portion of the mounting bolt 33 does not advance more than a predetermined amount.

A coil-shaped spring 43 is interposed in the sleeve 41 and the nut 37 is moved from the state of the natural length L1 to the stepped surface 3.
By tightening the spring 43, the spring 43 can be constantly pressed to a specified compression state L2 by a fixed amount, and a constant fastening force by the spring 43 can be obtained.

Therefore, according to the second embodiment, in addition to the effects of the first embodiment, the mounting bolt 33
Since the head does not protrude to the back side of the decorative panel 7, the appearance can be improved.

In the second embodiment, the step surface 3
The sleeve 4 which is a separate member from the mounting bolt 33 to make 9
As shown in FIG. 8, the mounting bolt 33 is provided with a cylindrical portion 45 integrally protruding from the back surface of the decorative panel 7 and a screw thread having a small diameter in a region beyond the cylindrical portion 45. It is also possible to adopt an embodiment in which an integrated structure is formed as the portion 33a, and the end surface of the cylindrical portion 45 that changes to the screw portion 33a is the step surface 39.

In this embodiment, there is an advantage that the number of parts can be reduced because the sleeve 41 is not required.

In the first, first and second embodiments, the description has been made using the coiled spring as the elastic body. However, it is also possible to use elastic and elastically deformable rubber. .

[0031]

As described above, according to the present invention, the fastening force at the time of fastening can be kept constant by the fastening stress reducing means, and the stress applied to the fastening can be reduced. Therefore, the deformation of the fastening region of the plate-shaped fastening body can be suppressed to a small value without using the edge frame, and the quality can be ensured and the appearance can be improved.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view taken along the line AA of FIG. 3, showing a plate-like body mounting device according to the present invention.

FIG. 2 is an exploded perspective view of the mounting device.

FIG. 3 is an explanatory view showing a car room of an elevator embodying the present invention.

FIG. 4 is an explanatory view in which fastening pins constituting the mounting device are integrally fixed and supported on the back side of the decorative panel.

FIG. 5 is an explanatory view showing a second embodiment of the mounting device in the middle of fastening.

FIG. 6 is an explanatory view showing the second embodiment of the mounting device at the time of completion of fastening.

FIG. 7 is an exploded explanatory view of the mounting device according to the second embodiment.

FIG. 8 is an explanatory view showing a modification of the mounting bolt of the second embodiment.

[Explanation of symbols]

 7 decorative panel (object to be fastened) 11 fastening stress reducing means

Claims (3)

[Claims] 1. A mounting device for fastening a plate-shaped member to be fastened, wherein a fastening force is reduced by a fastening stress reducing means so that deformation of a fastening region of the member to be held is kept small and stress applied to the fastening. A mounting device for a plate-shaped body, characterized in that the number of the plates is reduced. 2. The fastening stress reducing means includes: a fastening member that penetrates a fastening mounting hole of an object to be fastened; an elastic body provided in the fastening member; 2. The mounting device for a plate-like body according to claim 1, further comprising: an elastic body fixing support member that reduces a stress applied to the elastic member and maintains the fastening force constant. 3. The plate-like body mounting device according to claim 1, wherein the elastic body is a spring or rubber.