JPH069967Y2 - Container cap - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" This invention relates to a cap of a container for containing, for example, a liquid detergent or a facial cleanser, and particularly of a container in which the content outlet can be opened and closed by a snap action. It is about the cap.

“Prior Art” Conventionally, there is a snap cap as this type of cap. This is a structure in which a lid for opening and closing the cap body is integrally connected by a reversible snap hinge, and an opening (pouring outlet) in the cap body is opened and closed by opening and closing the lid. According to such a cap, the cap main body and the lid can be formed by one part, and the cost can be reduced, but on the other hand, the snap hinge appears largely on the outer surface of the cap, and the color is 1
Since the color is limited, there is a problem in that it is not applicable to a container such as a cosmetic container in which cosmetics, fragrances, etc. are placed, where appearance is important.

Therefore, in recent years, a cap has been proposed in which the cap body and the lid are separated from each other and the structure of the hinge is changed to enhance the aesthetic appearance. Such a cap has a structure as shown in FIG. 6, for example.

That is, in the cap shown in FIG. 6, the protrusion 2 having the rotating shaft 2a is formed on the rear wall portion of the lid body 1, and the rotating shaft 2a is rotatably supported on the rear wall portion of the cap body 3. By providing the elastic support piece 4 for pressing, the lid body 1 is hinged to the cap body 3 so as to be vertically rotatable.
By the action of the projecting piece 2 and the elastic supporting piece 4, the lid 1 can be opened and closed by the principle of snap action.

[Problems to be Solved by the Invention] According to the above-described conventional cap, by forming the cap body and the lid separately, it is possible to use two colors and enhance the decorativeness. Also, a good snap action can be generated. However, even with such a cap, the following problems to be solved remain, for example.

That is, in the conventional cap described above, it is necessary to form the hole 5 for removing the pin of the mold in the base end portion of the elastic support portion 4 of the cap body 3, and therefore, the liquid tightness and the slidability of the pin are required. In consideration of the above, the so-called double core structure (2 in which the structure of the cap body 3 is composed of an outer cylinder 8 forming an outer surface and an inner cylinder 7 having a content outlet 6 on the upper surface and attached to the mouth portion of the container body (2 It was a heavy structure). As a result, the diameter of the cap body 3 becomes larger than that of the single core structure.

However, if the cap body 3 can have a single structure, the diameter can be reduced, which is preferable from the point of view of design.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a cap in which the cap body has a single structure and the diameter of the cap body can be reduced without impairing the effect of the snap action.

"Means for Solving Problems" The present invention relates to a cap main body having an outlet for contents on the upper surface, a wall of the cap main body integrally formed with a thin hinge portion, and the hinge portion being bent. And a lid member that is attached to the upper surface of the cap body, and a lid body that is hinged to the wall portion of the middle member so as to be vertically rotatable and that opens and closes the contents outlet. The rotary shaft of the lid is provided, and the elastic support portion that presses the rotary shaft of the lid from above is provided on the wall portion of the middle member.

"Operation" When the lid is rotated about its axis of rotation in a so-called open state, the rear wall of the lid presses the top surface of the cap body, and the axis of rotation of the lid is the elastic support piece of the cap body. Move upwards against. When the uppermost point (dead point) of the rotation axis is passed, the pressure contact force of the rear wall of the lid against the top surface of the cap body weakens and the snap action due to the elasticity of the elastic support piece urges the rotation, and It acts so as to be further opened by itself until it returns to the position. The reverse snap action occurs when the lid is closed.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment of the present invention,
In the drawings, reference numeral 10 indicates a cap body, reference numeral 11 indicates a middle member, and reference numeral 12 indicates a lid, respectively, and these reference numerals 10 to 12 constitute the main members of the cap according to the present invention.

The cap body 10 is attached to the mouth portion of a container body 13 for storing contents such as liquid cosmetics shown in FIG. 2 by screwing or concavo-convex fitting. Is formed in.

A content outlet 14 is formed at the center of the upper surface of the cap body 10, and a step portion 15 having a circumferential protrusion 15a is formed at the edge of the upper surface. Also, the cap body 10
A spiral projection 16 for screwing into the mouth of the container body 13 is formed on the inner peripheral wall of the container.

The middle member 11 is formed in a ring shape, and is integrally formed with the hinge portion 17 in the rear wall portion 10b of the cap body 10 and is hinge-coupled.
At the lower end of the inner peripheral surface of the middle member 11, the cap body 1
A circumferential ridge 11a that engages with the 0 circumferential ridge 15a is formed,
The middle member 11 is adapted to be fitted to the step portion 15 of the cap body 10. An elastic support portion 18 having an inverted L-shaped cross section is integrally provided on the rear wall portion 11b of the middle member 11 to support the lid body 11 so as to be vertically rotatable.

The elastic support portion 18 rotatably presses the rotary shaft 12a of the lid 12 from above, and the rear wall portion 11b of the middle member 11 is supported.
It is composed of a supporting portion 18a that stands upright more vertically and a pressing portion 18b that extends horizontally from the upper end of the supporting portion 18a toward the front. A fitting groove for the rotating shaft 12a is formed on the inner surface of the pressing portion 18b. A locking piece 18c is provided so as to project.

The lid 12 is for opening and closing the contents outlet 14 of the cap body 10, and is made of synthetic resin.
It is formed in a saucer shape that covers the upper surface of 0. On the inner surface of the lid body 12 corresponding to the content outlet 14, a plug member (not shown) for closing the content outlet 14 is projected. Further, a concave portion 19 into which the pressing portion 18b of the elastic supporting portion 18 is fitted is formed in the rear wall portion 12b of the lid body 12, and the rotary shaft 12a of the lid body 12 is provided in a protruding manner in the concave portion 19. There is. The lid 1 is attached to the free end of the lid 12.
Locking projection 2 for locking 2 to the cap body 10
0 is projected.

In this embodiment, as shown in FIG. 3, the height dimension L of the elastic support portion 18 (height dimension of the support portion 18a) is set to be smaller than the turning radius R of the rear end portion 12b of the lid 12. As a result, when the lid body 12 is rotated around the rotation shaft 12a as a fulcrum, the rear end portion 12b of the lid body 12 is
It is considered that the elastic support portion 18 is elastically deformed by contacting the upper surface of the elastic support portion 18.

Next, the operation of this embodiment configured as described above will be described.

As shown in FIG. 2, in order to change the closed state in which the lid 12 closes the content outlet 14 from the closed state to the open state, the cap body 1
The locking protrusion 20 may be pushed upward from 0 with a finger.
By this operation, the lid body 12 is attached to the upper surface of the cap body 10.
The rear end portion 12b comes into pressure contact with the rotary shaft 12a of the lid body 12 to elastically deform the elastic support portion 18 as shown by the dashed line in FIG.

Against this resistance force, the lid 12 is further attached to the rotary shaft 12
When it is rotated to the uppermost point (dead point) of a and passed through this dead point, the cap body 10 by the rear end 12b of the lid 12 is
As the pressure contact force to the upper surface of the lid body 12 weakens, the lid body 12 is repelled (snap action) at a stretch in the rotation direction (opening direction), and as a result, the lid body 12 is swung vigorously to the maximum open state.

If the lid 12 is rotated in the reverse order of the above operation when the lid 12 is closed, a moment acts in the closing direction on the lid 12 when the dead center is passed by the same action as described above, and a reverse snap action occurs to close the lid 12. It becomes a state.

FIG. 4 shows a second embodiment of the present invention. In the figure, the same members as those shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

In the cap of this embodiment, the middle member 11 is formed in a disc shape along the upper surface of the cap body 10, and the contents outlet 1 of the cap body 10 is formed at the center of the middle member 11.
A spout 21 communicating with No. 4 is formed. A circumferential projection 21 a is provided at the lower end of the spout 21 for engaging the inside of the contents outlet 14 and locking the middle member 11 to the cap body 10. Further, the lid 12 is provided on the free end of the middle member 11 and the front wall portion 10 a of the cap body 10.
A notch 22 is formed to facilitate the opening operation.

FIG. 5 shows a third embodiment of the present invention. In the figure, the same members as those shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, a recess 23 for inserting the middle member 11 is formed on the upper surface of the cap body 10, and a circumferential protrusion 23 a is provided on the inner peripheral wall of the recess 23. Further, the middle member 11 is formed in a disk shape as in the second embodiment, and the outer peripheral wall of the middle member 11 has a circumferential protrusion that engages with the circumferential protrusion 23a of the cap body 10. 24 is projected.

Even in the caps of these two embodiments, the same operational effects as those of the first embodiment can be obtained.

[Advantage of Device] As described in detail above, according to this device, since the elastic supporting portion is provided on the wall portion of the inner member and the inner member is mounted on the upper surface of the cap body, It is not necessary to form a pin removal hole for forming the elastic support portion on the upper surface, and the cap body does not have to have a double core structure. Therefore, the cap body can have a single-core structure, and the diameter can be reduced. As a result, the outer appearance of the cap can be made slim and its design can be improved, and the cap can be applied to a wide range such as a thin bottle container.

Further, particularly in this invention, since the middle member is formed integrally with the cap body together with the thin hinge portion,
It is possible to reduce these parts as one part,
In particular, it is possible to reduce the production cost of the cap in the manufacturing process and the assembly process.

When the lid and the cap body are colored in two colors, they are color-coded up and down, which enhances the decorativeness of the lid and fixes the lid that opens and closes at the boundary of this color. It becomes a boundary between the cap body and the middle member in the opened state, and it is possible to easily discriminate between them, which is excellent in handling.

Furthermore, by the organic action of the lid and the elastic support,
It has an excellent effect that a favorable snap action can be generated when the lid is opened and closed.

[Brief description of drawings]

1 to 3 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view of a cap, FIG. 2 is a perspective view of the cap, and FIG. 3 is shown for explaining the operation. FIG. 4 is a sectional view showing the second embodiment of the present invention, FIG. 4 is an exploded perspective view of the cap, and FIG. 5 is a third embodiment of the present invention. The figure is a cross-sectional view showing a structural example of a conventional cap. 10 ... Cap main body, 11 ... Middle member, 11b ... Wall part (rear wall part), 12 ... Lid, 12a ... Rotating shaft, 14 ... Content outlet, 18 ... Elastic support part.

Claims (1)

[Scope of utility model registration request] 1. A cap body (10) having a contents outlet (14) on an upper surface thereof, and a wall portion of the cap body (10) integrally molded with a thin hinge portion (17), and the hinge portion (17). ) Is bent, and a middle member (11) mounted on the upper surface of the cap body (10) and a wall portion (11b) of the middle member (11) are hinged so as to be vertically rotatable and the contents. A lid (1 that opens and closes the outlet (14)
2), the lid body (12) is provided with a rotation shaft (12a) of the lid body (12), and the wall portion (1b) of the middle member (11) is A cap for a container, which is provided with an elastic support portion (18) for rotatably pressing the rotary shaft (12a) of the lid body (12) from above.