JPH10230955A - Cover-locking structure of case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new cover-locking structure of a case which simplifies the constitution and assembling and improves the workability on producing it. SOLUTION: This locking structure of a cover to a case is provided with a pair of recesses 3, 4 at mutually corresponding positions of the outside face of the peripheral wall of the case body 1 and the cover body 2 and a plastic cover-locking piece 11 forming protruded edges 9, 10 at the rear face of both right and left sides 2 and further, cut grooves 14 for insertion of a shaft at the cut edges of bearing holes 12, 13 and claws preventing turning back thereof respectively, in separately from the case and cover bodies. Fitting hooks 17, 18 keeping the cover body in the closed condition by engaging with receiving hooks 7, 8 are provided at both ends of the right and left protruded edges 9, 10. And axial pins 5, 6 are fitted in the bearing holes 12, 13 through the cut grooves 14 and the fitting hooks 17, 18 are detachably locked to the receiving hooks 7, 8, in the above fitted state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid stopper for a plastic case.

[0002]

2. Description of the Related Art Conventionally, all known lid stoppers in this type of case have drawbacks such as complicated construction and assembly and poor workability during manufacturing.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a novel case lid stopper structure which sufficiently eliminates the above-mentioned defects.

[0004]

In order to achieve the above-mentioned object, a case lid stopper structure according to the present invention comprises a pair of concave portions having a positional relationship corresponding to the outer surfaces of the peripheral walls of the case body 1 and the lid 2. And a pair of left and right shaft pins 5 and 6 on the left and right side walls of one of the recesses 3, and receiving hooks 7 and 8 on the other recess 4 respectively. Separately from the left and right sides of the back with plastic 9
0, a bearing hole 12, 13 at one end of each of the left and right projecting edges 9, 10, and a shaft introducing groove at a cutting edge of the bearing holes 12, 13. Also, check claws 15 and 16 are provided on the cut edge of the cut groove 14 to prevent return and escape, respectively, and the receiving hook protrusions 7 and 8 are provided at the other end of the left and right side protrusions 9 and 10 respectively. Hooks 17 and 18 are provided to keep the lid 2 in the closed state by engaging the shaft pins 5 and 6 with the shaft holes 12 and 13 through the shaft introduction grooves 14. At the time of the fitted state, the hooks 17 and 18 are used.
The hooks 7 and 8 are hooked and detached from the receiving hooks 7 and 8 so as to be freely detachable.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment shown in the drawings, a lid 2 which is made of a plastic material (using PP for communication) and which can be opened and closed via a thin hinge portion 19 is integrally provided on the upper edge of the rear wall of a case body 1. In addition, a pair of upper and lower recesses 3 and 4 are provided on the outer surface of the peripheral wall of the case body 1 and the lid 2 so as to correspond to each other on the outer surfaces of the case body 1 and the lid 2. A pair of right shaft pins 5 and 6 are provided, and receiving hooks 7 and 8 are provided in the lower recess 4 respectively. Separately from these, a plastic material (usually, PP is used) is used on both the left and right sides. Lid stopper piece 11 provided with protruding edges 9 and 10 on the back surface
And the left and right side edges 9 and 1 of the lid stopper piece 11.
0, the bearing holes 12 and 13
Shaft introduction grooves 14 are also provided at the cutting edges of 2, 13
Non-return claws 15 and 16 are provided at the incisal edges of the cover 2 and the lower and right side protruding edges 9 and 10 are engaged with the receiving hooks 7 and 8 at the lower end portions thereof to cover the lid 2. Hooks 17 and 18 are provided to keep the shaft in a closed state, and the shaft pins 5 and 6 are fitted into the shaft holes 12 and 13 through the shaft introduction grooves 14 and the hooks are used in the fitted state. The hooks 17, 18 are hooked on the receiving hooks 7, 8 so as to be freely detached and locked.

[0006]

Since the case stopper structure according to the present invention has the above-described structure, when the cover stopper piece 11 is attached to the case main body, the opening of the shaft introducing groove 14 must be aligned with the shaft. It is possible if the shaft pins 5 and 6 are fitted into the bearing holes 12 and 13 by applying pressure to the lid stopper pieces 11 in a state where the shaft pins 5 and 6 are applied to the pins 5 and 6. The simplicity and extremely good workability at the time of production are achieved, and a significant effect of completely achieving the intended purpose is achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a main part of the same.

FIG. 3 is a sectional view taken along the line AA of FIG. 1;

FIG. 4 is a cross-sectional view showing a state where a lid stopper is removed.

FIG. 5 is a sectional view showing a state in which a lid is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Lid body 3, 4 recessed part 5, 6 Axis pin 7, 8 Receiving hook part 9, 10 Protrusion edge 11 Lid for stopper 12, 13, Bearing hole 14 Shaft introduction cut groove 15, 16, Non-return claw Part 17, 18 Hook part 19 Hinged part

Claims (1)

[Claims] A pair of recesses (3, 4) are provided on the outer surfaces of the peripheral wall of the case body (1) and the lid (2) as a positional relationship corresponding to each other, and a pair of left and right is formed on the left and right walls of one of the recesses (3). Shaft pins 5, 6 and receiving recesses 7, 8 in the other recess 4, respectively, and separately provided with protruding edges 9, 10 on the left and right sides of the back surface using plastic. A lid stopper piece 11 is formed, bearing holes 12 and 13 are provided at one end of the protruding edges 9 and 10 on both the left and right sides, and a shaft introducing groove 14 is provided at a cutting edge of the bearing holes 12 and 13. Non-return claws 15 and 16 are provided at the incisal edge of the incision 14 to prevent return, and are engaged with the receiving hooks 7 and 8 at the other end of the left and right both-side protruding edges 9 and 10. Hooks 17 and 18 are provided to keep the lid 2 in the closed state, and the shaft pins 5 and 6 are inserted into the shaft holes 12 and 13 so that the shaft introduction groove 1 is formed. 4. The cover stopper structure for a case, wherein the hooks 17, 18 are hooked on the receiving hooks 7, 8 so as to be freely detachable from the hooks 7, 8 in the fitted state. .