JPS591966Y2 - Box lid locking device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lid fixing device for a box body, in which a box body and a lid body are respectively molded from hard synthetic resin.

Conventionally, the lid fixing device for a box body made of a molded product of a hard material has been fixed to the box body and the lid body by riveting or the like using separately molded fasteners, but this riveting process is extremely troublesome. It had drawbacks such as weak mechanical strength and lack of reliability.

The present invention eliminates the drawbacks of the conventional type described above, and the present invention will be explained with reference to an embodiment shown in the figure below. 1 is a box body, 2 is a lid body, and these box body 1 and lid body 2 are hard. It is molded from synthetic resin and connected by a hinge on one side.

When molding the box body 1 and the lid body 2, a retaining edge 3 protruding in a substantially inverted U-shape is provided along one edge on the open side of each, and the same retaining edge 3 is provided on the other edge. Attachment edges 4 and 5 having substantially inverted letter-shaped cross sections facing each other in the direction perpendicular to the end edges are integrally provided at a required interval so as to be located substantially on the image side of 3.

The mounting edges 4, 5 project suitable projections 6 on their opposite edges.

On the other hand, a stop member 7 is formed separately from this.

This stopper member 7 has an upwardly directed hook 8 at its end for hooking onto the holding edge 3, and flanges 9, 10 projecting from both sides of its mounting base to fit into the mounting edges 4, 5. A stopper 11 is provided protruding from the rear end, and a suitable recess 12 is formed at a position corresponding to the projection 6.

With the above configuration, by pushing the stopper member 7 into the mounting edges 4, 5 as shown in FIG. - Complete the installation with one motion.

In the attached state of this stopper member 7, for example, the above-mentioned protrusion 6
It is mechanically securely locked by the engagement of the recess 12 and is securely held by the engagement of the mounting edges 4, 5 and the flanges 9, 10, and sufficient mechanical strength can be obtained, making it suitable for long-term use. It will not come off or be damaged.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the main parts of a box cover locking device showing an embodiment of the present invention, Fig. 2 is a rear view of the same mounting part, Fig. 3 is a plan view of the mounting state of the locking member, FIG. 4 is a perspective view of the main parts of the lid stopper device. In the figure: 1... box body, 2... lid body,
3...Retaining edge, 4.5...Mounting edge, 7
・・・・・・Fixing member, 8・・・Hooking claw, 9゜10
...Flange.

Claims (1)

[Scope of utility model registration request] The box body and lid are formed by molding a hard synthetic resin, and one of the edges of the box body and lid is integrally provided with a retaining edge along the edge, and the other edge is provided with an edge. A mounting edge of an L-shaped cross section is provided protrudingly facing the mounting edge at a required interval at right angles to the mounting edge, and a flange is formed separately on the mounting edge and is fitted into the mounting edge. A box lid retaining device characterized by being equipped with a retaining member having a retaining claw.