JPH0633205Y2 - Plate mounting structure - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application This invention is used for a hot water boiler, an exterior box of an air conditioner, and the like, and a front plate such as a box cover plate and a front panel is provided with screws on the rear plate. The present invention relates to a plate mounting structure used for mounting.

(B) Conventional Technology This type of mounting structure is, for example, as disclosed in Japanese Utility Model Application Laid-Open No. 58-46933, the front panel (front plate) of the outer box can be attached to and detached from the outer box body (rear plate). It is used to attach to.

4 and 5 show an example of a conventional structure,
A front plate 2 having a screw insertion hole 1, a rear plate 4 having a screw hole 3, and a screw 5 are provided. By screwing the screw 5 into the screw hole 3 through the screw insertion hole 1, the front plate 2 is moved backward. It is attached to the plate 4.

By the way, in the above-mentioned conventional device, as shown in FIG. 6, when the positions of the screw insertion hole 1 and the screw hole 3 are deviated, the screw 5 obliquely enters the screw hole 3, and the screw thread of the screw hole 3 is It had the drawback of being crushed. Therefore, when the front plate 2 is repeatedly attached and detached several times, the front plate 2 cannot be attached.

As a countermeasure against such a problem, as shown in FIG. 7, the screw holes 3A of the rear plate 4 are burring taps, or as shown in FIG. Attempts have been made to reinforce the female threads of the screw holes 3 and 3A. However, in all cases, when the screw 5 is obliquely inserted, it is unavoidable that the screw thread is crushed, and it has not been a drastic measure.

Further, in Japanese Utility Model Application Laid-Open No. 56-154191, one of the mounting holes is formed in a long hole shape so that the screw is obliquely inserted into the screw hole with respect to the deviation between the screw insertion hole and the screw hole. What is prevented is disclosed.

However, in the one described in this publication, the deviation between the screw insertion hole and the screw hole is limited only in the vertical direction, and since the screw insertion hole is large, the screw provided in the screw insertion hole is There was a problem that rainwater and the like would enter inside.

(C) Problems to be solved by the invention The invention protects the screw holes of the rear plate by preventing screws from being inserted obliquely into the screw holes, and
It is an object of the present invention to provide a plate mounting structure that can prevent rainwater and the like from entering the inside as much as possible.

(D) Means for Solving the Problem In the present invention, the front plate, the first rear plate to which the front plate is attached with the screws, and the rear of the first rear plate are arranged at a predetermined interval. A second rear plate and a third rear plate to which the second rear plate is attached, and a bending rising portion of a single plate obtained by bending the first rear plate and the third rear plate in a U shape. On the other hand, the second rear plate is formed by a single plate whose both ends are bent in an L shape and fixed to the front part of the third rear plate, and the front plate is slightly smaller than the screw diameter of the screw. A large first screw insertion hole, and a second screw insertion hole slightly smaller than the first screw insertion hole in the first rear plate, and a screw is formed in the second rear plate. This is a configuration in which a screw hole for screwing is provided.

(E) Action By forming the first rear plate and the third rear plate at the bent rising portions of the single plate bent in a U shape, rainwater and the like that enter through the screws can be used as the first rear plate. Not only can it be held at the U-shaped bottom portion between the third rear plate and the third rear plate, but also by fixing the second rear plate provided with the screw holes to the front part of the third rear plate, It can prevent rainwater from entering.

Further, the front plate is provided with a first screw insertion hole that is slightly larger than the screw diameter of the screw, and the first rear plate is provided with a second screw insertion hole that is slightly smaller than the first screw insertion hole. Since it is provided, it is possible to screw the front plate, which is frequently attached and detached for maintenance and adjustment, when mounting it to the first rear plate, and it is possible to drive the screw in any direction, and at the time of screwing the screw, Even if a deviation occurs in the direction, it is corrected in the rectilinear direction by the distance between the first rear plate and the second rear plate, and then it is screwed into the screw hole with rectilinear motion, so that diagonal striking of the screw can be prevented as much as possible. Screws and screw holes can be protected.

(F) Embodiments Embodiments of the present invention shown in the drawings will be described below.

FIGS. 1 to 3 show an embodiment of the present invention. A front plate 8 having a screw insertion hole 7, a first rear plate 10 having a screw insertion hole 9, and a rear side of the first rear plate 10 are shown. At a predetermined interval W
Second rear plate 12 having a screw hole 11
And a third rear plate 14 and a screw 13, and the first rear plate 1
0 and the third rear plate 14 are formed by a bent rising portion of a single plate bent in a U shape, while both ends of the second rear plate 12 are L-shaped.
It is bent into a mold and fixed to the front surface of the third rear plate 14.
Also, the diameter D of the screw insertion hole 9 of the first rear plate 10 is
The screw insertion hole 7 of the front plate 8 is slightly larger than the screw insertion hole 9 of the first rear plate 10.

In the embodiment described above, the front plate 8 is attached to the first rear plate 10 by screwing the screws 13 into the screw holes 11 after passing the screws 13 through the screw insertion holes 7 and 9. In this case, the screw parts of the screws 13 that have passed through the screw insertion holes 7 and 9 are slightly displaced from each other and the screw portions of the screws 13 are the first rear plate 10 and the second rear plate 1.
After being corrected almost straight at an interval of 2, the second rear plate 12
Will be screwed into the screw hole 11. Therefore, screw 1
3 is prevented from being slanted and the screw thread of the screw hole 11 is prevented from being crushed. In addition, rainwater or the like that enters through the screw 13 enters between the first rear plate 10 and the third rear plate 14. Since it can be held at the bottom of the letter, rainwater etc. can be prevented from entering the inside as much as possible.

In the above-mentioned embodiment, the predetermined interval W is preferably as large as possible, but is set appropriately according to the screw length of the screw 13. Further, it is preferable that the diameter D of the screw insertion hole 9 of the first rear plate 10 be closer to the screw diameter of the screw 13. Furthermore, the screw hole 11 of the second rear plate 12 may be a burring tap, or a nut may be attached to the screw hole 11 to reinforce the female screw of the screw hole 11.

(G) Effect of the device Since the device of the present invention is configured as described above, the screw can be screwed into the screw hole with straightness, and the oblique driving of the screw can be prevented as much as possible to prevent the screw of the screw hole from being screwed. It can protect mountains, and is especially suitable for repeatedly attaching and detaching the front plate.

Moreover, since the first rear plate and the third rear plate are formed by the bent rising portions of the single plate bent in a U-shape, rainwater and the like that enter through the screws can enter the first rear plate and the third rear plate. U between the rear plate
Not only can it be held at the bottom of the character, but also by fixing the second rear plate provided with the screw holes to the front part of the third rear plate, it is possible to prevent rainwater and the like from entering through the screw holes.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a state before attachment of a structure of an embodiment of the present invention, FIG. 2 is a sectional view showing a state before attachment, and FIG. Sectional view showing the state of No. 4,
FIG. 5 is a cross-sectional view showing a state before attachment of a conventional device, FIG. 5 is a cross-sectional view showing a state after attachment, FIG. 6 is a cross-sectional view showing another state at the time of attachment, and FIG. 7 is a rear view. Sectional drawing which shows the modification of a board, FIG. 8 is sectional drawing which shows another modification similarly. 7 ... Screw insertion hole (first screw insertion hole), 8 ... Front plate, 9 ...
Screw insertion hole (second screw insertion hole), 10 ... First rear plate, 1
1 ... Screw hole, 12 ... 2nd rear plate, 13 ... Screw, 14 ... 3rd
Back plate.

Claims (1)

[Scope of utility model registration request] 1. A front plate, a first rear plate to which the front plate is attached with screws, a second rear plate disposed behind the first rear plate with a predetermined gap, and a second rear plate. A third rear plate to which a rear plate is attached, wherein the first rear plate and the third rear plate are formed by a bent rising portion of a single plate bent in a U shape, while the second rear plate is provided. Is formed of a single plate having both ends bent into an L shape and fixed to the front portion of the third rear plate, and the front plate has a first screw insertion hole slightly larger than the screw diameter of the screw. And a second screw insertion hole slightly smaller than the first screw insertion hole is provided in the first rear plate, and a screw hole into which a screw is screwed is provided in the second rear plate. Board mounting structure characterized by.