JPH0810723Y2 - Fixed structure of machine box and stand - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention is, for example, a frame stand equipped with a clothes dryer and required shelves in a household laundry system, or a cooker such as a microwave oven and a stand for placing. Like
The present invention relates to a fixing structure for a device casing (hereinafter referred to as a machine box) when the device is mounted on a stand and fixed in a systematic and organized manner.

<Prior Art> When a machine box is placed on a stand shelf and fixed, a method as shown in FIG. 3 is often used as the structure of the fixing portion.

That is, FIG. 3 (A) shows a burring hole 2 on the bottom surface of the machine case 1.
Are formed at appropriate intervals, screw holes 4 are formed in the corresponding shelf surface of the stand 3, the machine box is placed on the stand shelf surface, and then tapped screws 5 are screwed into the burring holes 2 to create the machine box. 1 (B) is a system in which a required number of simple mounting holes 2a are formed on the bottom surface of the machine box 1 and the diameter is slightly larger than the hole 2a. The pin 6 is inserted from the lower surface and placed on the stand 3 in such a manner that the flange portion is sandwiched, and by tapping the tapping screw 5 from the lower surface on the stand side, the two are fastened together. In C), a hollow pin nut 7 having a screw formed in the inner diameter is attached to the attachment hole 2a of the simple opening of the machine case 1 from the inside of the machine case, and the device is placed on the stand 3 and the screw 5 is attached from the lower surface of the shelf. How to fasten both by screwing into the pin nut 7 It is obtained by the.

<Problems to be Solved by the Invention> Generally, when two members are simply and relatively firmly fastened, a small screw such as a screw is used as described above, particularly in household appliances. . By the way, in order to sufficiently secure the fastening force by the screws, the strength such as strength of the fastened member (machine box, stand, etc.) becomes a problem, but the strength decreases as the thickness of the member becomes thinner, for example. .
In terms of the tightening force of the screw, the strength changes depending on the effective diameter of the screw and the screwing length, and the screwing length is affected by the wall thickness of the member. It will be possible to increase the attachment force.

Therefore, as described above, conventionally, in order to increase the apparent wall thickness (screw length), the burring holes or other reinforcing members have been used. However, in general, the outer box of equipment tends to have a thin plate thickness (wall thickness) due to weight, size, design, or the like, or processing. For this reason, even if the burring holes are formed as described above, the proof strength of the machine box itself is lowered, and it is difficult to obtain a reinforcing effect due to the burring. In the method like (B) and (C),
Even if it is more effective than the burring hole method, it is necessary to prepare a separate member for that purpose, which complicates the tightening work and causes problems such as loss of the member, which is a problem in terms of work and cost.

The present invention was made in view of the problems as described above, and a separate member for fastening is used, paying attention to the fact that the stand for mounting and supporting the machine case has a required plate thickness in terms of its function. It is an object of the present invention to provide a fixing structure capable of obtaining a sufficient effect in terms of strength without doing so.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention forms an engaging opening bulging inward in the machine with the notch opening in the same direction at an appropriate position on the bottom surface of the machine case, and A screw through hole is provided on the bottom surface near the cutout opening, and an engaging piece inserted and locked in the engagement opening is cut and raised at a position facing the machine box engagement opening on the stand shelf surface. Is formed on the upper side, and the screw through hole is provided on the surface of the engaging piece, so that the engaging hole and the engaging piece are engaged with each other and fastened by a screw member from the lower surface of the stand shelf.

<Operation> When a device is placed on the shelf of the stand, if the position is adjusted so that the engaging piece of the stand shelf is inserted into the engaging opening of the machine box, the engaging piece will be removed from the engaging opening. When facing the inside of the machine box, the engaging piece and the shelf surface are caught in a state where the bottom surface of the machine box is sandwiched. Next, the screw holes of the machine box and the screw holes of the engaging pieces are aligned with each other, and the screw member is screwed into the screw holes from the lower surface of the shelf. As a result, the screw member sandwiches the bottom surface of the machine case and is screwed into the engaging piece of the shelf, so that the stand and the machine case are firmly fastened by the engagement and the screw.

<Embodiment> A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a structural example of a machine box 10 according to an embodiment of the present invention and a frame-shaped stand 20 for mounting and supporting the machine box 10, and FIG. 2 is a main part for explaining the engagement between the machine box and the stand shelf. It is a structure explanatory view.

In the figure, a machine box 10 constitutes an exterior of a device having a required functional structure inside, and at least a bottom surface 11 thereof is formed into a flat surface. Engagement openings 12 and screw holes 13 are formed at approximately four corners of the bottom surface 11 for fixing and locking to a stand shelf surface described later. As shown in the two-dot chain line circle in FIG. 1 and the enlarged view in FIG. 2, the engagement port 12 and the screw through hole are partially opened by notching the machine box bottom surface 11 with a punching press or the like. At least, it is formed by bulging into the machine box, and the screw through hole 13 is a notch opening 12 of the engaging opening 12.
It is provided as a simple opening in the bottom surface 11 that does not bulge near the a side. The opening diameter of the screw through hole 13 may be slightly larger than the screw diameter of a fastening screw member described later.

The engagement openings 12 at the four corners are formed with the notch openings 12a on the same direction side, and are directed to the left side in the figure. The notch opening 12a can be inserted. Reference numeral 20 denotes a frame-structured stand provided with a shelf 21 having a size and a flat shape in which the machine box 10 can be placed, and the surface of the shelf 21 facing the engagement opening 12 of the machine box 10 has the engagement opening 12 when necessary. An engaging piece 22 that is inserted into and locked in is cut and raised in an L-shaped cross section by a punching press or the like, and is formed above the cut and raised portion opening 22b as shown in the drawing (in the chain double-dashed line circle in FIG. 1). (See the cross-sections in Figures and 2). The length of the flat portion 22a formed by cutting and raising the engaging piece 22 is set so as to cover the screw through hole 13 when the engaging portion 22 is hooked to the engaging opening 12 of the machine case 10.
A screw hole 23 is provided at a position corresponding to the machine box side screw through hole 13 on one side of the engagement a. The screw hole 23 has a thread groove formed in advance or is formed as a pilot hole for a tapping screw.

With the configuration as described above, the engagement and fastening work is performed by setting the engagement port 12 of the equipment box 10 and the engagement piece 22 of the shelf 21 of the stand as substantially aligned as shown in FIG. 2 (A). As shown in FIG. 2B, the shelf-side engaging piece 22 is housed in the concave portion of the machine-box-side engaging opening 12, that is, the machine-box bottom 11 is the stand shelf 21.
It is placed in contact with the surface. Then, as shown in the figure, the machine box 10
Is shifted to the right in the figure, the flat portion 22a of the engagement piece 22 faces the inside of the machine case 10 through the notch opening 12a of the engagement opening 12, and the engagement piece 22 is in a so-called hooked state on the machine case bottom surface 11. At this time, the screw holes 13 on the bottom surface 11 of the machine case and the screw holes 23 on the stand side engaging pieces 22 are in alignment with each other. Then, as shown in FIG. From screw hole
Thread it through the screw hole 23 and tighten it. In the tightened state, the head portion 24a of the screw member 24 is housed in the cut-and-raised portion opening 22b as illustrated.

As a result, the machine box 10 is sandwiched between the screw member 24 and the stand shelf 21, that is, the machine box 10 and the stand 20 are fastened, and the machine box is fixed to the stand. In this case, since the shelf material of the stand is required to have a function of supporting the weight of the device, it is generally composed of a member relatively thicker than the plate thickness of the device. Therefore, it is easy to surely screw the screw member,
Further, it becomes possible to obtain a sufficient fastening force.

<Effects of the Invention> As described in detail above, according to the present invention, even if the plate thickness of the exterior of the device is thin, the device can be easily and surely mounted on the stand shelf without separately using any reinforcing member. It is possible to provide a fixing structure which can be fixed in place and has excellent practical effects. Further, according to the present invention, the head of the screw member can be housed in the opening of the raised portion, that is, it can be prevented from protruding from the lower surface of the stand shelf, so that an object can be stored in the space under the stand shelf. In doing so, the screw member does not become an obstacle.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a machine box and a stand according to an embodiment of the present invention, FIG. 2 is a configuration explanatory view of main parts for explaining engagement of the machine box and a stand, and FIG. 3 is a conventional engagement method. FIG. 3 is an explanatory diagram of a main part configuration for explaining FIG. In the figure, 10 is a machine box, 11 is a bottom surface, 12 is an engagement port, 12a is a notch opening, 13 is a screw hole, 20 is a stand, 21 is a shelf, 22 is an engagement piece, and 2
3 is a screw hole, and 24 is a screw member.

Claims (1)

[Scope of utility model registration request] 1. A structure for mounting and fixing a device on a required stand shelf, and bulging inward in the machine with cutout openings in the same direction at appropriate positions on the bottom surface of the machine case constituting the exterior of the device. An engaging piece is formed at the bottom surface of the engaging opening in the vicinity of the cutout opening of the engaging opening, and an engaging piece is inserted into the engaging opening at a position facing the machine box engaging opening on the stand shelf surface. Is formed on the upper side of the opening of the cut-and-raised portion, and a screw hole corresponding to the screw through hole is provided on the engagement piece surface, and the engagement hole and the engagement piece are engaged with each other to lower the bottom surface of the stand shelf. A structure for fixing the machine box and stand, which is fastened with a screw member.