JPS6143373Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to compact containers, and more particularly to an automatically opening compact container that can open the lid of the container to a sufficient angle with just one touch.

Conventionally, compact containers for storing cosmetics, puffs, etc. have generally had a hinge mechanism at the rear end of the container body and lid, and these are connected so that they can be opened and closed, and can be used with one hand. This is inconvenient in use, as the user must grasp the container body with one hand and open the lid with the other hand.

Subsequently, the applicant of the present application proposed a so-called push-piece type compact container in which the lid can be opened with a single touch.

This push-piece type compact container is provided with a push-piece and a locking piece at the front end of the container body and the lid of the conventional compact container, respectively, and the push-piece is locked by engaging them, and the push-piece is pressed inward. This will open up the world.

However, with this push-piece method, although the lid can be opened with just one touch,
The degree of opening is not sufficient, and an improvement that allows the opening to be made with just one touch without causing any trouble in use has been desired.

For this reason, compact containers have been proposed in which an elastic body such as a metal spring is incorporated into a hinge mechanism to enable automatic opening.

However, this assembly work is difficult because the elastic body is relatively small, and there are economic problems such as increased costs due to decreased productivity and increased costs due to the addition of component parts. A problem arose with the loss of .

This idea was devised in view of the problems mentioned above, and its purpose is to solve economic problems such as reduced productivity in compact containers, while also making them sufficiently compact to the extent that they do not cause any inconvenience in use. To provide an automatically opening compact container which enables opening of a lid body.

Preferred embodiments of this invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the automatically opening compact container of this invention.

The self-opening compact container shown in the figure is composed of a container body 12 that accommodates an inner tray 10 filled with cosmetics, and a lid 14 that closes the container body 12 from above, each of which is made of synthetic resin or the like. The container body 12 and lid 14 are molded.
By cutting out a recess 16 at the rear end of the container body 12, forming a block body 16 hanging down at the rear end of the lid body 14, and fitting these together and inserting a pin 20, a hinge mechanism is constructed. Connected so they can be opened and closed.

This self-opening compact container has the following features.

That is, a horizontal plate spring 22 having both ends fixed to the left and right side walls is integrally formed in the recess 16 of the container body 12 when the container body 12 is molded.

In this case, it is of course possible to injection mold the leaf spring 22 with the same resin as the container body 12, but it is also possible to make the leaf spring 22 of a metal plate or the like and integrally mold it by insert molding.

On the other hand, the lid body 14 is provided with a convex protrusion 24 adjacent to the bottom of the block body 18, and furthermore, a slit 26 is formed at the rear edge of the inner plate 10, and the slit 26 is formed in the vertical direction with the bottom of the slit 26 as a fulcrum. An elastically deformable synthetic resin piece 28 is formed on the.

Now, in the structure configured as described above, when the lid body 14 is closed, the convex protrusion 24 comes into contact with the synthetic resin piece 28, presses the synthetic resin piece 28 downward, and further the synthetic resin piece 28 It is elastically deformed downward and comes into contact with the leaf spring 22 to press it downward.

In this case, since the leaf spring 22 and the synthetic resin piece 28 have elasticity, an elastic force is generated that tries to return to the original state, that is, a force that pushes the lid body 14 upward.

This elastic force is applied to the container body 12 and the lid body 14.
The push piece 30 and the locking piece 32 provided at the front end of the hinge mechanism do not work effectively when they are locked to each other, and when the push piece 30 is pushed inward to release the lock, the pin 20 of the hinge mechanism is used as a fulcrum. This acts as a rotational moment, causing the lid 14 to open.

In this case, the elastic force is determined by the width and thickness of the leaf spring 22, the height of the convex protrusion 24, etc., and by selecting these appropriately, it can be adjusted to the extent that the cosmetic inside the container does not scatter. Moreover, the lid body 14 can be opened automatically with one touch to the extent that it is not inconvenient in use.

Furthermore, the leaf spring 22, the synthetic resin piece 28, and the convex protrusion 24 that enable the automatic opening can be integrally molded at the same time when the inner plate 10, the container body 12, and the lid 14 are molded, which is economically advantageous. What is more noteworthy is that the leaf spring 22 is not only
0, and when the lid body 14 is opened, it is not exposed to the outside at all, and the appearance as a compact container is maintained.

In this embodiment, a synthetic resin piece 28 is provided on the rear edge of the inner tray 10 to press the leaf spring 22, but it is also possible to press the leaf spring 22 directly with the convex projection 24 of the lid 14 without using the synthetic resin piece 28.

Further, the portion of the lid body 14 that presses the leaf spring 22 may be formed by forming a step on the inner bottom of the block body 18, or by forming the convex projection 24 in a linear shape.

As described above, this invention is a compact container in which the container body and the lid are connected to each other by a hinge mechanism so that the container body and the lid can be opened and closed. and a portion that presses the leaf spring downward at the rear end of the lid, so that the lid is always attached in the direction of opening the lid by pressing the leaf spring when the lid is closed. Even with this structure, it is possible to fully automatically open the lid with a single touch, and all the main parts that make up these automatic opening mechanisms can be formed integrally with the container body, etc. It is also extremely superior from an economic standpoint.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the self-opening compact container of this invention, with FIG. 1 being an exploded perspective view and FIG. 2 being a partial sectional view. DESCRIPTION OF SYMBOLS 10... Middle plate, 12... Container body, 14... Lid body, 16... Recessed part, 18... Block body, 20...
... Pin, 22 ... Leaf spring, 24 ... Convex projection, 2
6...Slit, 28...Synthetic resin piece, 30...
Push piece, 32...Latching piece.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a compact container that accommodates an inner tray filled with cosmetics and has a hinge mechanism at each rear end of the container body and lid so that they can be opened and closed, the container body A horizontal leaf spring having both ends fixed to the left and right side walls of a recess formed in a notch at the rear end is integrally formed, and a portion presses the leaf spring downward at the rear end of the lid body. A self-opening compact container characterized in that the container is always biased in the direction of opening the lid by pressing the leaf spring when the lid is closed. (2) A narrow slit is formed in the rear end edge of the inner plate to form an elastically deformable piece of synthetic resin, and when the lid body is closed, the plate spring is pressed through the synthetic resin piece; The self-opening compact container according to claim 1, wherein the leaf spring is hidden within the recess. (3) The self-opening compact container according to claim 1 or 2, wherein a convex projection is provided at the rear end of the lid as the pressing portion.