JPH0715173Y2 - Exterior case structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to an outer case structure, and more particularly to a mounting structure for attaching a side plate to a bottom plate.

(Prior Art) For example, a front panel and a rear panel, which are side plates, are attached to two opposite sides of a lower case, which is a bottom plate,
When an upper case is covered with an upper case to form an outer case for housing electronic devices and the like, the mounting structure of the lower case and the front panel and the rear panel is conventionally as shown in FIGS. 5 to 7. It was That is, as shown in FIG. 5, the front panel 2 and the rear panel 3 are fixed to the opposite two sides of the lower case 1 by screws 4 and 5, respectively. As shown in FIG. 6, a projecting portion 2a projects from the lower portion of the front panel 2 in a direction perpendicular to the panel surface, and the upper surface of the projecting portion 2a abuts the lower surface of the lower case 1.
Then, the screw 4 is inserted and fastened into the mounting hole 2b formed in the protruding portion 2a and the screw hole 1a formed in the vicinity of the end portion of the lower case 1, and the front panel 2 is fixed to the lower case 1. There is. On the other hand, as shown in FIG. 7, a mounting hole 3a is formed near the lower end of the rear panel 3, one side of the lower case 1 on the rear panel 3 side is bent at a right angle, and a screw hole 1c is formed in the bent portion 1b. Has been formed. Then, the screws 5 are inserted and fastened into the mounting holes 3a and the screw holes 1c, and the rear panel 3
Is fixed to the lower case 1. A space between the front panel 2 and the rear panel 3 is covered from above by an upper case 6, and both lower ends of the upper case 6 are fixed to both sides of the lower case 1 by a plurality of screws 7. Reference numeral 8 is an electronic device mounted on the lower case 1.

(Problems to be solved by the invention) However, according to the above-described conventional exterior case structure,
When the front panel 2 and the rear panel 3 are fixed to the lower case 1, since these panels 2 and 3 can move in the left-right direction and the vertical direction with respect to the lower case 1, respectively, the mounting holes 2b and 3a and the mounting holes 2b and 3a, respectively. There is a problem that it is difficult to align the screw holes 1a and 1c. The upper case 6 is inserted from above along the inner surface of the rear panel 3,
Since the rear panel 3 is on the outside of the upper case 6, a gap is likely to be formed between the upper case 6 and the rear panel 3, and in this case, dust or the like is likely to enter the case. As a result, iron scraps or the like may enter the case and cause a failure such as a short circuit of the electronic device. Further, since both sides of the upper case 6 are fixed to the lower case 1 by the screws 7 and the heads of the screws 7 are exposed to the outside, there is a drawback that the appearance is deteriorated.

This invention solves the above-mentioned problems of the prior art, and the purpose thereof is to easily attach and fix the side plate such as the upper case to the bottom plate such as the lower case, and have a high dustproof effect, It is to provide an excellent exterior case structure.

[Constitution of device]

(Means for Solving the Problem) A first aspect of the present invention that achieves the above object is an outer case structure in which a side plate of an outer case is attached and fixed to one side of a bottom plate of the outer case. The side forms a concave portion by recessing a predetermined portion of the one side from the end side toward the inner side at a uniform depth, and the side plate side has a lower side of which is a protruding portion of a predetermined length to the bottom plate side. And forming a notch for inserting the side wall into the protrusion corresponding to the side wall of the recess of the bottom plate, and inserting the side wall of the recess into the notch of the protrusion. When the side plate is attached to the bottom plate, the protrusion is sandwiched and fixed by the bottom plate.

A second aspect of the present invention that achieves the above object is an exterior case structure when a side plate of an exterior case is attached and fixed to one side of a bottom plate of the exterior case, and the bottom plate side has a predetermined side of the one side. A tongue piece having a screw hole is formed at a position, and the tongue piece is bent in parallel with the side plate to form a bent portion, and the bent portion is formed on the other portion of the bottom plate by the thickness of the side plate. Form an extended part that protrudes outward from the part,
On the side plate side, a mounting hole is provided at a portion facing the screw hole, and when the lower side of the side plate is placed on an extension part and the mounting hole is aligned with the screw hole and mounted on the bottom plate, the exterior The feature is that the side surface of the case is flush.

(Operation) According to the first aspect of the present invention, a concave portion that is recessed at a uniform depth from the end side toward the inside is formed at a predetermined position on one side of the outer case on the bottom plate side, and on this one side. On the side plate side to be attached, the lower side is bent to the bottom plate side by a predetermined length to form a protrusion, and a portion of the protrusion corresponding to the side wall of the recess of the bottom plate is formed for inserting the side wall. Since the notch is formed, when the side wall of the recess is inserted through the notch and the side plate is attached to the bottom plate, the protrusion is sandwiched and fixed by the bottom plate.

Further, according to the second aspect of the present invention, a tongue having a screw hole is formed at a predetermined position on one side of the outer case on the bottom plate side,
The tongue piece is formed with a bent portion that is bent in parallel with the side plate, and the other portion of the bottom plate is formed with an extended portion that projects outward from the bent portion by the thickness of the side plate. , On the side plate side, since the mounting hole is provided at a portion facing the screw hole, when the lower side of the side plate is placed on the extended portion and the mounting hole is aligned with the screw hole and mounted on the bottom plate, The sides of the outer case are flush with each other. Further, when the upper case is attached to the outer case, by making the width of the side plate equal to the inner width of the upper case, the upper case can be inserted from the rear panel side, and each play can be reduced. .

In any of the above cases, the assembly workability and the dustproof effect are improved.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing an outer case structure in which the structure according to the first claim of the present invention is applied to the front panel 2 side and the structure according to the second claim is applied to the rear panel 3 side. 2, FIG. 3 and FIG. 4 are sectional views taken along the lines AA, BB and CC of FIG. 1, respectively. In these figures, the same or equivalent parts as those of the conventional example shown in FIGS. 5 to 7 are designated by the same reference numerals.

In FIG. 1, a front panel 2 having side plates made of synthetic resin, which are side plates, respectively, and an aluminum plate are provided on two opposing sides of a lower case 1 which is a bottom plate formed in a substantially rectangular shape in an iron plate. A rear panel 3 forming a side plate formed into a substantially rectangular shape is attached, and an upper portion thereof is covered with an upper case 6 formed of an iron plate and having a substantially U-shaped cross section. On one side of the lower case 1 where the front panel 2 is attached, three recesses 1d are formed at predetermined intervals, each recessed inward from the end side toward the inside. Further, a protrusion 2a that protrudes toward the lower case 1 is formed on the lower portion of the front panel 2 over substantially the entire width. As shown in FIG. 2, a portion of the protruding portion 2a aligned with the recess 1d of the lower case 1 is a thin portion 2c having a concave upper surface, and other portions are as shown in FIG. It is a thin portion 2d having a concave bottom surface. Then, in order to enable the thin portion 2c to fit into the recess 1d, cut portions 2e are formed on both sides of the thin portion 2c. Further, a mounting hole 2b and a screw hole 1a are formed in the thin portion 2c and the recessed portion 1d respectively, and when the lower projecting portion 2a of the front panel 2 is fitted and assembled to the lower case 1, these holes 2b and 1a are formed.
Are located concentrically. In this state, the inner surface of the thin portion 2c contacts the outer bottom surface of the recess 1d,
The outer surface of 2d is in contact with the inner surface of the lower case 1 other than the recess 1d, and the protrusion 2a holds the lower case 1 therebetween. Then, the screw 4 is inserted into the mounting hole 2b and screwed into the screw hole 1a, whereby the front panel 2 and the lower case 1 are fastened and fixed.

On the other hand, on one side of the lower case 1 on which the rear panel 3 is attached, as shown in FIG. 4, three bent portions 1f each bent upward are formed at predetermined intervals. The lower case 1 except the bent part 1f is
The rear panel 3 is extended outward by the thickness of the rear panel 3 to form an extended portion 1g. Further, a mounting hole 3a and a screw hole 1c are formed in the vicinity of the lower end of the rear panel 3 and in the bent portion 1f, respectively. These holes 3a and 1c are positioned concentrically when they are assembled and assembled. Then, insert the screw 5 into the mounting hole 3a, and
The rear panel 3 and the lower case 1 are fastened and fixed by being screwed into.

Further, the upper case 6 can be inserted in parallel with the lower case 1 from the rear panel 3 side, and when one end of the upper case 6 abuts on the front panel 2, the other end of the upper case 6 covers the outer periphery of the rear panel 3. It comes in close contact with the coating. Further, the lower ends on both sides of the upper case 6 are bent at a right angle toward the inside, and the screws 7 are screwed through the mounting holes formed in the bent portion 6a to fasten the upper case 6 and the lower case 1 together. Fixed.

Next, the operation of this embodiment will be described. By inserting the thin portion 2c of the protruding portion 2a of the front panel 2 into the outside of the recess 1d of the lower case 1 and inserting the thin portion 2d into the inside of the lower case 1 other than the recess 1d, the front panel 2 Can be temporarily fixed to the lower case 1. At this time, when positioning the front panel 1 with respect to the lower case 1, the thin portion 2c is recessed 1d.
And is fastened and fixed by the screw 4 easily. On the other hand, the rear panel 3 is an extension of the lower panel 1.
By mounting on 1g, vertical positioning is performed, and by positioning only in the horizontal direction, fastening and fixing with the screw 5 becomes easy.

Further, when the upper case 6 is inserted from the rear panel 3 side along the lower case 1 and one end of the upper case 6 is brought into contact with the end surface of the front panel 2, the other end of the upper case 6 is the outer periphery of the rear panel 3. Since the above is covered, it is possible to eliminate the respective gaps between the front panel 2 and the rear panel 3 and the upper case 6, and it is possible to prevent dust and the like from entering the case. In addition, since there are no screws on the front, top, and left and right sides of the case, the appearance is also excellent.

According to this embodiment, the assembling work of the front panel 2, the rear panel 3 and the upper case 6 to the lower case 1 becomes easy, the dustproof effect is improved, and the appearance is also excellent.

In the above embodiment, the case where the front panel 2, the rear panel 3 and the upper case 6 are assembled to the lower case 1 has been described. However, even when the side plates are assembled to other bottom plates, the above two assembly structures can be arbitrarily combined, or When used alone, the same effect can be obtained.

[Effect of device]

As described above in detail, according to the outer case structure of the first embodiment of the present invention, the outer case has a uniform depth formed in a predetermined position on one side of the bottom plate from the end side toward the inner side. Since the side plate is attached to the bottom plate by inserting the part sandwiched by the notch of the protrusion of the predetermined length at the lower side of the side plate into the recessed recess, the side plate with respect to the bottom plate is positioned and attached to the bottom plate. The workability of assembling the side plates is improved.

Also, according to the second aspect of the present invention, a tongue-like bent portion is formed at a predetermined position on one side of the bottom plate of the outer case, and the other parts of the bottom plate are bent from the bent portion by the thickness of the side plate. Since the extension is formed by projecting outward, and the lower side of the side plate is placed on the extension to attach the side plate to the bottom plate, the side plate with respect to the bottom plate is positioned and attached, and the side plate with respect to the bottom plate is assembled. The attaching workability is improved. Further, the side surface of the outer case can be made flush.

In any case, the dustproof effect and the appearance can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 and FIG.
FIG. 4 and FIG. 4 are sectional views taken along the lines AA, BB and CC of FIG. 1, respectively. FIG. 5 is a side view showing a conventional outer case structure, and FIGS. FIG. 6 is a cross-sectional view of section D and section E of FIG. 5, respectively. 1 ... Lower case (bottom plate), 1d ... Recessed part, 1f ... Bent part,
2 ... Front panel (side plate), 2e ... Notch, 3 ...
Rear panel (side plate).

Claims (2)

[Scope of utility model registration request] 1. An outer case structure in which a side plate of an outer case is attached and fixed to one side of a bottom plate of the outer case, wherein the bottom plate side faces a predetermined portion of the one side from an end side thereof toward an inner side. To form a recessed portion at a uniform depth, and the side plate side forms a protrusion of a predetermined length on the lower side of the side plate to the bottom plate side, and at the protrusion corresponding to the side wall of the recessed part of the bottom plate. Forming a notch for inserting the side wall, and inserting the side wall of the recess into the notch of the protrusion to attach the side plate to the bottom plate, the protrusion is clamped by the bottom plate. An exterior case structure characterized by being fixed. 2. An outer case structure for mounting and fixing a side plate of the outer case to one side of a bottom plate of the outer case, wherein the bottom plate side has a tongue piece having a screw hole at a predetermined position of the one side. , The tongue is bent in parallel with the side plate to form a bent portion, and at other parts of the bottom plate,
An extension portion is formed by projecting outward from the bent portion by the thickness of the side plate, and a mounting hole is provided on the side plate side at a portion facing the screw hole, and the lower side of the side plate is An exterior case structure characterized in that the side surfaces of the exterior case are flush when mounted on the extension part and attached to the bottom plate by aligning the attachment holes with the screw holes.