JPH0232589Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a mounting structure for a container and a cap. More specifically, the present invention relates to a mounting structure that allows a cap to be easily placed on a container and removed by a one-touch operation using only one hand.

[Conventional technology]

Conventionally used cap mounting structures include those shown in FIGS. 9 and 10. In the figure, 61 is a container made of a laminate of an aluminum sheet and a synthetic resin film.
The bottom end is sealed, and the top end is provided with a disc-shaped, tapered shoulder 62. A cylindrical mouth portion 63 is provided at the center of the shoulder portion 62.
is formed. An annular projection 64 is formed at the lower end of the outer periphery of the mouth portion 63 . 65 is a flexible cap made of synthetic resin, and the top plate 6
6, a skirt portion 67 and elastic leg pieces 68. The elastic leg pieces 68 are formed by disposing narrow leg pieces circumferentially at regular intervals inside the skirt part 67, and an engaging recess 69 is formed on the inner periphery of the tip of each leg piece. ing.

As shown in FIG. 9, when the cap 65 is covered, the engagement recess 69 fits into the protrusion 64.
The tip of the skirt portion 67 is in contact with the surface of the shoulder portion 62.

When removing this cap 65, as shown in FIG. 10, when the skirt portion 67 is strongly pinched and pressurized with fingers, the tip of the skirt portion 67 will slide up on the shoulder portion 62, so that the elastic The leg piece 68 is bent, the engagement recess 69 is disengaged from the protrusion 64, and the entire cap 65 is lifted upward and removed.

However, in the conventional example, it is necessary to grasp the container with one hand and remove the cap with the other hand, so both hands must be used to remove the cap from the container. Therefore, there has been a problem in that when the user is holding a toothpaste in one hand, it is extremely troublesome to separate the container from the cap.

As a solution to this problem, the
A cap mounting structure is proposed in Publication No. 2754.

In this cap mounting structure, as shown in FIG. 11, a gasket 70C is placed on the upper surface of the opening 70A, and an inner cap 70D is placed around the opening 70A and the gasket 70C.
An engagement cap 70B is attached to the upper part of D. The engaging cap 70B has four engaging legs 74.
is provided vertically, and a protrusion 73 is formed at its tip. This protrusion 73 engages with a groove 71 formed in the side wall of the mouth portion 70A (this engaged state is shown by a two-dot chain line). The push button 70E is placed over the inner cap 70D, and the outer circumferential wall 72 of the push button 70E contacts the engagement foot 74 from the inside. Then, the push button 70E and the gasket 70
A spring 75 is interposed between C and C.

In this cap structure, the engaging cap 70
When the engaging foot 74 of B is engaged with the groove 71 of the mouth portion 70A, the cap is in a fitted state;
When the push button 70E is pushed in and the outer peripheral wall 72 of the push button 70E is bent radially outward, the protrusion 73
When the cap is disengaged from the groove 71, the cap can be taken out upward.

[The problem that the idea aims to solve]

However, in the conventional example, when the push button 70E is pushed in and the engagement foot 74 is moved radially outward, when the user releases the push button 70E, the engagement foot 74 immediately returns to the radial inside and the protrusion 73 of the engagement foot 74 is moved radially outward. The cap may get stuck in the groove 71 of the opening 70A, making it impossible to remove the cap.

Therefore, in this conventional example, the cap removal operation is unstable, and there is a problem in that the cap cannot always be removed with a single touch.

In view of the above circumstances, it is an object of the present invention to provide a structure for attaching a container to a cap, which allows the cap to be always and reliably removed or attached with one touch.

[Means to solve the problem]

The present invention comprises a container having a mouth, an inner cap fitted into the mouth, and an outer cap that controls engagement and disengagement of the inner cap, (A) the container has a container main body, It consists of a tapered shoulder provided at one end of the container body and a cylindrical mouth provided at the center of the shoulder, and an annular protrusion is formed on the outer periphery of the mouth. B) The inner cap is composed of a top plate, a skirt portion extending in a tapered shape from the periphery of the top plate, and elastic leg pieces provided inside the skirt portion and elastically engaging and retracting from the protrusion of the mouth portion, An engaging protrusion is formed on the outer periphery of the skirt portion, and (C) the outer cap includes a cylindrical outer cylinder and an inner cylinder with an elliptical inner peripheral surface disposed concentrically within the outer cylinder. a first compression spring disposed between the outer cylinder and the inner cylinder; and a second compression spring disposed within the inner cylinder.
(D) a top plate of the inner cap is disposed within the inner cylinder of the outer cap; is brought into contact with the second compression spring, and the engaging protrusion of the skirt part is brought into contact with the claw part of the inner cylinder,
It is characterized by the insertion of an inner cap.

[Effect]

The cap of the present invention is engaged and detached by inverting the entire container and placing the top surface of the cap on the floor of a sink or the like.

The cap is now attached to the mouth of the container,
If you want to remove the cap, place it on the floor and push in the container. Then, the skirt portion of the inner cap hits the inner surface of the inner cylinder of the outer cap and is deformed into an elliptical shape. When the skirt part is deformed into an oval shape, its tip slides over the shoulder of the container,
As it rises, the entire inner cap is moved axially outward of the mouth, and the projection of the mouth and the elastic legs are disengaged. Then, when the hand that was pushing the container is released, the shoulder of the container is pushed up by the elastic action of the first compression spring, and the container is separated from the inner cap and the outer cap.

As described above, in the present invention, the cap can be removed simply by holding the container body with one hand and pressing it downward, so one-touch operation is possible. Moreover, since the mouth portion and the elastic leg piece move relative to each other in the axial direction at the initial stage of operation, they do not engage with each other when the hand is released later, and the disengagement operation can be performed reliably.

〔Example〕

Next, embodiments of the present invention will be described.

Fig. 1 is an exploded cross-sectional view showing an embodiment of the attachment structure for a container and a cap according to the present invention, Fig. 2 is a cross-sectional view showing the state immediately before the cap is attached, and Fig. 3 shows the cap in the attached state. 4 is a sectional view showing the state in which the container is pushed in to remove the cap, FIG. 5 is a sectional view showing the state in which the container is taken out after the inner cap has been removed, and FIG. 4
7 is a perspective view showing the attachment/detachment operation of the present invention, and FIG. 8 is a sectional view showing another embodiment of the present invention.

In FIG. 1, A is a container and B is a cap. Container A is a highly flexible container that accommodates kneaded toothpaste and the like. The container body 1 is formed of a laminate of an aluminum sheet and a synthetic resin film, and the bottom end is sealed by heat sealing or the like, and a shoulder 5 is provided at the top opening. This shoulder 5
is a tapered disc with sufficient rigidity to prevent it from easily bending. Further, a cylindrical mouth portion 2 is formed in the center of this shoulder portion 5. This mouth part 2
An annular protrusion 3 is formed on the outer periphery of the protrusion 3, and the upper surface thereof is formed into an inclined surface 3a.

Cap B is composed of an inner cap 4 and an outer cap 9. Inner cap 4 is 9th to 10th
It has essentially the same structure as the conventional cap 65 shown in the figure. That is, the inner cap 4 is made of synthetic resin, and is provided inside a top plate 8, a skirt portion 6 extending in a tapered shape from the periphery of the top plate 8, and an elastic projection 3 on the opening portion 2. It consists of an elastic leg piece 7 that engages and disengages automatically. This elastic leg piece 7 is made up of a plurality of elastic pieces arranged circumferentially at regular intervals 7b, and each elastic leg piece 7
An engagement recess 7a is formed on the inner periphery of the tip.
Further, an engaging protrusion 16 is formed on the outer periphery of the skirt portion 6.

The outer cap 9 is constructed as follows. 12 is a cylindrical outer tube with a bottom, and its outer diameter is approximately the same as that of the container body 1. An inner cylinder 11 is arranged concentrically inside the outer cylinder 12. The inner circumferential surface 11a of this inner cylinder 11 is formed into an elliptical shape as shown in FIG. Further, on the inner peripheral surface of the distal end thereof, a claw portion 17 is formed facing inward and comes into contact with the engagement protrusion 16 of the inner cap 4.

Inside the outer cap 9, a first compression spring 10 is inserted between the outer cylinder 12 and the inner cylinder 11, and a second compression spring 13 is inserted inside the inner cylinder 11.
is included. The first compression spring 10 must have sufficient elasticity to push up the container A. The second compression spring 13 only needs to have enough elasticity to push up the inner cap 4. Reference numeral 14 denotes a shoulder support member, which is a disc-shaped and tapered plate material having the same shape as the surface of the shoulder portion 5. The peripheral edge of this shoulder support member 14 is stopped by a protrusion 18 formed on the inner periphery of the tip of the outer cylinder 12 so as not to come off. This shoulder support member 14 is a first compression spring 10
The skirt part 6 of the inner cap 4
The first compression spring 10 is fixed inside the top surface of the outer cap 9, and the shoulder portion 5 of the container A has sufficient rigidity to receive the sliding contact of the skirt 6. As long as it has hardness, it does not necessarily need to be provided.

Next, the operation of attaching and detaching the cap B in this embodiment will be explained.

(Attachment of Cap B) As shown in FIG. 2, place Cap B on the floor with the opening facing up, and push in container A with mouth 2 facing downward as shown by arrow a. Then, the elastic legs 7 are pushed apart to allow the opening 2 to enter. In this way, when the protrusion 3 of the mouth part 2 and the elastic leg piece 7 of the inner cap 4 are fitted together, the cap B will no longer come off from the container A, as shown in FIG. That is, the inner cap 4 engages with the claw portion 17 of the outer cap 9 through the engagement protrusion 16.

(Removing Cap B) To remove Cap B, as shown in FIG. 4, place Cap B on the floor and push down Container A as shown by arrow b. Then, the inner cap 4 is pushed into the inner cylinder 11, but at this time, the skirt part 6 is squeezed by the oval inner peripheral surface 11a of the inner cylinder 11 (see FIG. 6), and the skirt part 6 is squeezed onto the shoulder support member 14 ( If the shoulder rest member is not used, the upper part of the shoulder part 5) is connected to the mouth part 2.
Slide up in the direction of. Therefore, the inner cap 4 is moved axially outward with respect to the mouth 2, and the projection 3 of the mouth 2 is disengaged from the engagement recess 7a of the elastic leg 7.

When this state is reached, if you lightly release your hand from container A or weaken your grip, container A will be pushed up by the first compression spring 10 as shown in FIG. 5, and container A and cap B will be separated. . Note that the engagement protrusion 16 of the inner cap 4 engages with the claw portion 1 of the inner cylinder 11.
Since it is locked at 7, it will not pop out.

(Summary) As described above, in this embodiment, as shown in FIG. 7, by holding container A with one hand and pushing it down once (arrow a), cap B can be attached, and container A can be attached in the attached state. When pushed down (arrow b), container A is then pushed up as shown by arrow c, allowing it to be separated from cap B. Therefore, one-touch attachment/detachment is possible with one hand.

Next, another embodiment will be described.

In this embodiment, as the second compression spring, instead of the coil spring in the previous embodiment,
A tongue-shaped elastic piece 21 is used. Such an elastic piece 21 can also be used as a component of the present invention as long as it has an elastic force that pushes the inner cap 4 upward, and the cap B can be attached and detached with one touch as in the above embodiment. can.

[Effect of idea]

According to the present invention, the cap can be reliably attached and detached with one touch using only one hand.

[Brief explanation of the drawing]

Fig. 1 is an exploded cross-sectional view showing an example of the attachment structure between a container and a cap according to the present invention, Fig. 2 is a cross-sectional view showing the state immediately before the cap is attached, and Fig. 3 is a view showing the cap being attached. 4 is a sectional view showing the state in which the container is pushed in to remove the cap, FIG. 5 is a sectional view showing the state in which the container is taken out after the inner cap has been removed, and FIG. 4 is a sectional view taken along the - line in FIG. 4, FIG. 7 is a perspective view showing the attachment/detachment operation of the present invention, FIG. 8 is a sectional view showing another embodiment of the present invention, and FIGS. FIG. 11 is a sectional view showing an example of a conventional cap mounting structure. Main symbols in the drawing: A: Container, B: Cap,
1: Container body, 2: Mouth, 3: Projection, 4: Inner cap, 5: Shoulder, 6: Skirt, 7: Elastic legs, 9: Outer cap, 10: First compression spring, 11: Inner cylinder, 12: outer cylinder, 13: second compression spring, 14: shoulder support member.

Claims (1)

[Claims for Utility Model Registration] A container comprising a container having a mouth, an inner cap fitted into the mouth, and an outer cap controlling engagement and disengagement of the inner cap, (A) the container comprising: It consists of a container body, a tapered shoulder provided at one end of the container body, and a cylindrical mouth provided at the center of the shoulder, and an annular projection is formed on the outer periphery of the mouth. (B) the inner cap includes a top plate, a skirt portion extending in a tapered shape from the periphery of the top plate, and an elastic leg piece provided inside the skirt portion that elastically engages and disengages from the protrusion of the mouth portion; (C) The outer cap includes a cylindrical outer tube and an inner circumferential surface arranged concentrically within the outer tube, and an engaging protrusion is formed on the outer circumference of the skirt portion. a first compression spring inserted between the outer cylinder and the inner cylinder, and a second compression spring placed in the inner cylinder.
(D) a top plate of the inner cap is disposed within the inner cylinder of the outer cap; is brought into contact with the second compression spring, and the engaging protrusion of the skirt part is brought into contact with the claw part of the inner cylinder,
A mounting structure between a container and a cap characterized by an inserted inner cap.