JPH0610168Y2 - Stackable housing connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a connecting structure of a plurality of housings in cabinets and other furniture that are used in a stack.

(B) Conventional technology Conventionally, as a connecting structure of this type, the protrusions are provided at the four corners of the bottom plate of the upper casing, while the top plate of the lower casing is provided with engagement holes for fitting the protrusions. The protrusions and the engagement holes are fitted by overlapping the upper and lower casings, or metal fittings each having a protrusion and an engagement groove are attached to the upper and lower side plates so as to be often seen in the closet, and they are overlapped. It is well known that the two are engaged with each other, and various other means are known.

(C) Problems to be Solved by the Invention In the above-described conventional connection structure, there is a tendency to be relatively firm against lateral movement but easily disengaged from vertical movement. However, there is a problem in that the fixing mechanism for preventing this becomes complicated, or it is troublesome to put on and take off.

(D) Means for Solving the Problems In order to solve the above-mentioned problems, the stacking-type housing connection structure of the present invention has at least three dharmas along the corners or edges of the top plate 9 of the lower housing A. An engaging hole 8 having a shape and a reinforcing diaphragm 8c formed on the periphery is provided, while an engaging bolt 7 inserted into the engaging hole 8 is fixedly projected on the bottom plate 6 of the upper housing A, and the upper housing is formed. In a state where A is superposed on the lower housing B and the neck portion 7b of the locking bolt 7 is fitted in the narrow corner portion 8b of the locking hole 8, the bottom plate 6 of the upper housing A and the top plate 9 of the lower housing B are A pair of square holes 10 and 10 which are aligned with each other, and locking pieces 11a and 11b are provided on the front and back of the aligned pair of square holes 10 and 10, respectively, and are formed integrally with synthetic resin. It is characterized in that the mold stopper 11 is elastically locked and attached.

Hereinafter, the gist of the present invention will be described based on the embodiments shown in the drawings.

(E) Embodiment FIG. 1 is a perspective view of a cabinet having a connecting structure according to the present invention, in which casings A, B and C are stacked, the top plate 1 is placed on the uppermost stage, and the base is placed on the lowermost portion. A frame 2 is provided, and casters 3 at the four corners can be moved freely.
Is provided.

As shown in the exploded perspective view of FIG. 2, drawers a, b and c (a and b are omitted) are provided in each of the housings A, B and C through a suspension (not shown) similar to the suspension 5. It is designed to be housed. Therefore, the case A and the case B will be described. As shown in the sectional views of the third and fourth drawings, the locking bolts 7 composed of the head portion 7a and the neck portion 7b are arranged near both short sides of the bottom plate 6 of the housing A. While crimping and fixing each,
A similar locking bolt 7 is fixed near the center of the opposite short side.

The top plate 9 of the lower housing B is provided with a daruma-shaped locking hole 8 having a circular hole portion 8a and a narrow groove portion 8b and having a reinforcing narrowed portion 8c on the outer periphery so as to face the locking bolts 7. ,
When the upper and lower casings A and B are overlapped with each other, the locking bolt 7 is inserted into the circular hole portion 8a of the locking hole 8 and the neck portion 7b is slidably fitted into the narrow groove portion 8b. The upper and lower casings A and B are completely aligned with each other, and the bottom plate 6 of the upper casing A and the top plate 9 of the lower casing B are provided with a pair of square holes 10 and 10 aligned at this position. Opening and drilling, the front side locking piece 11a is bent and stretched slightly forward, and the rear side locking piece 11b is bent and stretched slightly in the same direction. Have A stopper 11 of a mold is formed, and first the tip 11a is inserted into the overlapped square holes 10 and 10, and then the rear ends are arranged in parallel.
It is pushed into 0 and 10.

An enlarged plan view showing this combined state is shown in FIG. 3, and FIG. 4 is a sectional view taken along the line XX of FIG. 3 and FIG. 5 is a sectional view taken along the line YY of FIG. There is.

The above describes the cases A and B, but the same applies to the cases B and C and the top plate 1 and the case A.

(D) Operation In the present invention having the above-described configuration, when the upper housing is superposed on the lower housing, the locking bolts 7, 7, 7 of the upper housing bottom plate 6 are first locked in the locking holes of the top board 9 of the lower housing. 8, 8, 8
When the locking bolts 7 are inserted into the circular hole portions 8a of the above and then slid into the narrow groove portions 8b as they are,
Because of a, it cannot be separated from the groove portion 8b and cannot be separated except for the return movement along the groove portion 8b.

In this state, since the respective square holes 10 and 10 are aligned with each other, the locking piece 11a on the front side of the stopper 11 is first inserted into the square hole 10 on the front side, and then the locking piece 11b on the rear side of the stopper 11 is moved backward. When the stopper 11 is elastically fitted into the pair of square holes 10 and 10 by pushing the stopper 11 into the square hole 10 of the stopper 11, the front and rear locking pieces 11a and 1a of the stopper 11 are formed.
The bent portion of 1b is caught in the square holes 10 and 10, and a reliable locking state in which it does not come out due to vibration or the like is obtained, and the locking bolt 7 cannot return.

At this time, the reinforcement diaphragm 8c provided on the peripheral edge of the locking hole 8 reinforces the peripheral edge of the locking hole 8 in strength, and when the locking bolt 7 is fitted into the locking hole 8 due to the diaphragm shape. Of the locking bolt 7 is fitted into the locking hole 8 without any clearance by filling the clearance between the head 7a of the locking bolt 7 and the locking hole 8 after the locking bolt 7 is fitted. Therefore, it is possible to eliminate the play between the upper casing A and the lower casing B.

Therefore, it is preferable that the locking bolt 7 has some elasticity and slidability.

Further, when removing the stopper 11, it is possible to easily remove it by first lifting the rear locking piece 11b having the smaller number of bent portions and then lifting the front locking piece 11a.

Thus, the upper casing is securely fixed on the lower casing. Therefore, a large number of casings can be sequentially stacked from below, and finally the top plate 1 is fixed in the same manner. In the case of this embodiment, the underframe 2 and the casing C at the lowest position.
Are fixed by the bolts 12 and the nuts 13, but needless to say, they can be fixed by the locking bolts 7, the locking holes 8, the square holes 10 and the stoppers 11 as described above. Can be changed to an adjuster.

(G) Effect of the Invention As described above, according to the present invention, the Dharma-shaped locking hole 8 is provided.
The engaging bolt 7 having the head portion 7a can be engaged with the stopper 11 and the stopper 11 can be elastically engaged to ensure reliable connection. The structure is simple and the assembling work is excellent. Yes, unless the stopper is removed, the connection is extremely strong, but by removing the stopper, it is very easy to separate each housing, and the production cost can be saved in combination with the simplification of the above-mentioned configuration. It has excellent characteristics and is extremely remarkable for practical use.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cabinet, FIG. 2 is an exploded perspective view of the same as above, FIG. 3 is a partially enlarged plan view showing a connected state, and FIG. 4 is a sectional view taken along line XX of the same. FIG. 5 is a sectional view taken along line YY of FIG. A, B, C: Housing, 7: Locking bolt 7a: Head, 7b: Neck, 8: Locking hole, 8a: Circular hole 8b: Narrow groove, 8c: Throttle 9: Top plate, 10: Square hole 11: Stopper

Claims (1)

[Scope of utility model registration request] 1. A bottom plate of an upper housing A, while at least three dharma-shaped locking holes 8 having a reinforcing diaphragm 8c are provided along a corner or a peripheral edge of a top plate 9 of a lower housing A. 6, a locking bolt 7 inserted and engaged in the locking hole 8 is fixed and projected, and the upper housing A is overlapped with the lower housing B so that the neck portion 7b of the locking bolt 7 is narrowed in the locking hole 8 '. In the state of being fitted in the corner portion 8b, a pair of square holes 10 and 10 are formed in the bottom plate 6 of the upper casing A and the top plate 9 of the lower casing B, respectively, which are aligned with each other. 10 and 10 have locking pieces 11a and 11b on the front and rear sides, and are formed integrally with synthetic resin. A stacking-type housing connection structure characterized in that a mold stopper 11 is elastically locked and attached.