JPH0530657Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a fitting and locking structure using locking claws,
In particular, the present invention relates to a structure for fitting and locking the inner plate body into the frame when forming the inner plate of a compact container.

[Conventional technology]

An example of a conventional device for locking an engaged object with a locking claw is the opening/closing locking means for a lid of a compact container described in Japanese Utility Model Application Publication No. 58-5610.
As shown in FIG. 3, a locking claw 6 is provided vertically on the lower surface of the front end of the lid body 2, and this locking claw 6 is locked to the container body 1. A locking protrusion 8 is provided on the front side of the tip of the container 6, and a locking protrusion 13 that is hooked onto the locking protrusion 8 is provided protruding from the container body 1, which is an engaged object.

[Problem that the invention attempts to solve]

By the way, there are cases where it is desired to provide such locking claws at at least three locations and to fit and lock the engaged object inside the area surrounded by the locking claws. In this case, if the above-described locking means is simply used, a locking protrusion is simply provided protruding inside the locking pawl, while a locking protrusion corresponding to the locking pawl is provided on the outer periphery of the engaged body. By simply providing a protrusion to be engaged that is hooked to the engagement protrusion, the object to be engaged can be fitted and locked within the three engagement claws.

However, in such a fitting and locking structure, if the inner dimensions between the three locking claws and the outer dimensions of the engaged object are not optimal values for fitting, looseness will occur in the fitting.

This idea was created with these points in mind.
The technical problem is to provide at least three locking claws and to prevent play from occurring in the fitting when the locking claws are fitted and locked inside the locking claws.

[Means for solving problems]

In order to solve the above-mentioned technical problem, the present invention provides locking pawls 6 vertically in at least three directions of the base body 5, and engages an engaged body 7 inside surrounded by these locking pawls 6. The following technical measures were taken to create a structure that would prevent this.

That is, on the outer periphery of the tip of the engaged body 7,
A locked protrusion 13 is provided at a portion facing the locking claw 6. On the other hand, the locking pawl 6 is provided with elasticity, and a locking protrusion 8 that is hooked on the locking protrusion 13 is provided inside the locking pawl 6. Furthermore, on the inside of the locking pawl 6, on the proximal side of the locking protrusion 8, there is an inclined surface 9 that slopes outward of the base body 5 as it approaches the proximal end.
will be established. When the engaged body 7 is fitted inside each locking pawl 6, the engaged protrusion 13 comes into pressure contact with the inclined surface 9, and the tip of the engaged body 7 abuts against the base body 5. .

[Effect]

When the engaged protrusion 13 of the engaged body 7 comes into pressure contact with the inclined surface 9 of the locking pawl 6, the base body 5 approaches the engaged body 7 due to the elasticity of the locking pawl 6 and the guiding action of the sloped surface 9. ,
It stops when the tip of the engaged body 7 hits the base body 5. This eliminates play in the vertical and horizontal directions of the engaged body 7 during fitting.

After the base body 5 and the engaged body 7 are fitted together, if a force is applied to separate them, the locking protrusion 8 of the base body 5 will engage the locking protrusion 13 of the engaged body 7.
It doesn't come off because it gets caught.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In this embodiment, the fitting and locking structure of the present invention is applied to the inner plate of a compact container.

This compact container has a rear edge of a circular container body 1 and a rear edge of a lid 2, which is also circular, connected by a hinge 3, and an inner plate 4 is fitted into the container body 1. ing.

This inner plate 4 has three locking claws 6 vertically arranged at equal intervals on the lower surface of a frame 5 as a base body formed in a circular ring shape, and the inner side of the three locking claws 6 is covered. The inner plate body 7, which is an engaging body, is fitted and locked.
It is molded from synthetic resin and has a certain degree of elasticity.

A locking protrusion 8 and an inclined surface 9 are provided inside the locking claw 6.
is provided. The locking protrusion 8 has a horizontal surface 10 facing toward the proximal end of the locking claw 6.
An inclined surface 9 is connected to the base end side of the 0. Slope 9
is inclined outward of the frame 5 as it approaches the base end.

Further, the inner plate main body 7 has a peripheral wall 12 erected around the bottom plate 11, and a locked protrusion 13 that is caught on the locking protrusion 8 on the outer periphery of the tip of the peripheral wall 12.
It is a ring-shaped projecting structure. In this way, since the locked protrusion 13 is formed in an annular shape, it can be caught on the locking protrusion 8 of the locking pawl 6 at any position.

Then, the sloped surface 9 of the locked protrusion 13 and the locking claw 6
Looking at the relationship, when the inner plate main body 7 is fitted inside each locking pawl 6, the locked protrusion 13 comes into pressure contact with the inclined surface 9, and the locking pawl 6 is pushed against its elasticity. The dimensions are set so that it can be pushed outward.

Since there is such a relationship between the locked protrusion 13 and the inclined surface 9, when the inner plate main body 7 is fitted inside the three locking claws 6, the locking claws 6 will be moved by their elasticity. Trying to shrink inward. Then, the locked protrusion 13
Due to the guiding action between the frame body 5 and the inclined surface 9, the frame body 5
In the figure, it is pulled downward (in the direction in which the frame body 5 and the inner tray body 7 approach each other). And surrounding wall 1
The frame body 5 stops when the tip of the frame body 5 hits the bottom surface of the frame body 5. Even in this stopped state, the locked protrusion 13 is in pressure contact with the inclined surface 9, and the frame 5 is pulled downward. As a result, the frame body 5
In the figure, there is no wobbling in the vertical direction or in the horizontal direction.

Therefore, even if the dimensional accuracy of the inner plate body 7, frame body 5, and locking claw 6 is somewhat poor, looseness during assembly can be absorbed and the fit can be made firm.

Even if an attempt is made to remove the inner plate main body 7 from the locking claw 6, the locking protrusion 13 is caught on the horizontal surface 10, so the inner plate body 7 cannot be removed as it is.

Note that the inner plate main body 7 may be formed by press molding a metal plate, in which case the locked protrusion 13 is attached to the peripheral wall 1.
It may be formed by inverting and bending the upper end of 2 to the outside and protruding outward by the thickness of the metal plate.

In addition, since it is sufficient that the locking claws 6 can fit and lock the engaged body 7 inside, four locking claws,
Or more may be provided.

Further, in this embodiment, a ring-shaped frame 5 is used as the base, but in some cases, a flat base or the like may be used.

[Effect of idea]

According to the present invention, the inclined surface can absorb vertical and horizontal backlash between the base and the engaged object, and even if the dimensional accuracy of the base and the engaged object is somewhat poor, both It is possible to fit firmly and securely without rattling.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment in which the present invention is applied to the inner plate of a compact container, FIG. 2 is an exploded perspective view of the inner plate, and FIG. 3 is a sectional view of a conventional example. 5... Frame body as a base body, 6... Locking claw, 7...
...Inner plate main body as an engaged object, 8...Locking protrusion,
9... Inclined surface, 13... Locked protrusion.

Claims (1)

[Claims for Utility Model Registration] A structure in which locking pawls 6 are vertically provided in at least three directions of the base body 5, and an engaged body 7 is fitted and locked inside surrounded by these locking pawls 6. A locking protrusion 13 is provided on the outer periphery of the distal end of the engaged body 7 at a portion facing the locking claw 6, and the locking claw 6 has elasticity. 6 is provided with a locking protrusion 8 that is hooked on the locking protrusion 13, and as the base end approaches the base end of the locking protrusion 8, 5
An inclined surface 9 that slopes outward is provided, and when the engaged object 7 is fitted inside each locking pawl 6, the engaged projection 13 comes into pressure contact with the inclined surface 9, and the engaged object A fitting and locking structure characterized in that the tip of 7 is formed so as to abut against the base body 5.