JPH112228A - Suction cup - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase adsorptive strength without requiring any other part or any man-hour for pulling the central part of a suction cup main body up in the reverse direction to the pressing direction by arranging an elastic body, which pushes back the central part of the suction cup main body in the reverse direction to the pressing direction for adsorption, in the central part on the adsorptive face. SOLUTION: In the central part of a substantially funnel-shaped adsorptive face 11 in a suction cup main body 1 made of synthetic rubber, a cylindrical elastic body 2 is arranged integrally. The suction cup main body 1 is installed to two substantially inverted key hole-shaped through holes bored in a back plate of a substantially L-shaped wall hanging shelf. In this process, when pressing is finished after the suction cup main body 1 is pressed so as to be adsorbed to a smooth adsorbed face, the central part is automatically pushed back in the reverse direction to the pressing direction because of restoring force of the elastic body 2. Alternatively, the elastic body 2 may be formed into a hollow cylinder. The elastic body 2 may be molded separately from the suction cup main body 1 so as to be stuck to the central part of the adsorptive face 11 by means of an adhesive tape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a suction cup.

[0002]

2. Description of the Related Art Conventionally, a suction cup, which is made of a flexible elastic material, is bent and elastically deformed by pressing and is adsorbed on a wall surface, and after suction, lifts a central portion of a suction cup body in a direction opposite to a pressing direction to increase the suction force. For example, as disclosed in Japanese Utility Model Laid-Open Publication No. 49-127680, it is known.

[0003]

However, such a suction cup requires a separate part for lifting the center of the suction cup body in the direction opposite to the pressing direction, and thus has the problem that it takes a lot of man-hours to raise the suction cup. Was.

[0004] The present invention solves the above-mentioned conventional problems, and can increase the suction force without requiring a separate part or man-hour for lifting the center of the suction body in the direction opposite to the pressing direction. The purpose is to provide.

[0005]

The suction cup of the present invention presses the center of the suction body in a direction opposite to the pressing direction for suction on the center of the suction surface of the suction body of the elastic body. An elastic body for returning is provided.

In the suction cup of the present invention, the material of the suction cup body made of an elastic material is not particularly limited as long as the surface of the suction surface is smooth and can be brought into airtight contact with the surface to be sucked. And a soft synthetic resin.

In the suction cup of the present invention, the material of the elastic body provided at the center of the suction surface is formed of, for example, synthetic rubber, closed-cell synthetic resin or synthetic rubber foam, metal or synthetic resin foam, or the like. Is done.

When the elastic body and the suction cup main body are made of the same material, the elastic body may be formed integrally with the suction cup main body, and may have a hollow cylindrical shape or a solid cylindrical shape. Or any of them.

When the elastic body and the suction cup main body are separate bodies, the means for attaching the elastic body to the suction cup main body may be any of adhesion, adhesion, fusion and the like. It may be fitted to a projection in the shape of a circle.

The height of the elastic body is not particularly limited. The elastic body has an elasticity capable of effectively reducing the pressure at the end of the pressing, and has a sufficient elasticity so that the elastic body does not separate from the surface to be attracted.
The depth is preferably 0.8 to 1.2 times the depth of the suction surface when not pressed.

[0011]

After the suction cup of the present invention is pressed against the surface to be sucked and sucked (FIG. 2), when the pressing is completed, the central portion of the suction cup is moved in the direction opposite to the pressing direction by the restoring force of the elastic body. (FIG. 3), the space between the suction surface and the suctioned surface of the suction cup is expanded in an airtight state, and the pressure is reduced, thereby increasing the suction force.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a product using the first embodiment of the suction cup of the present invention. FIGS. 2 and 3 are cross-sectional views showing the suction state of the first embodiment of the suction cup of the present invention shown in FIG. Figure,
FIG. 4 is a cross-sectional view showing a suction state of the second embodiment of the suction cup of the present invention, FIG. 5 is a cross-sectional view showing a suction state of the third embodiment of the suction cup of the present invention, and FIG. It is sectional drawing which shows the adsorption | suction state of an Example.

FIG. 1 shows an example of a product using the first embodiment of the suction cup of the present invention. The suction cup main body 1 made of synthetic rubber comprises:
It is attached to two substantially inverted keyhole-shaped through holes formed in the back plate of the substantially L-shaped wall shelf S.

As shown in FIGS. 2 and 3, a columnar elastic body 2 is integrally provided at a central portion of the suction surface 11 having a substantially bosh-like shape of the suction cup main body 1 (dotted arrow). Direction) and pressed on a smooth surface to be attracted (FIG. 2).
When the pressing is completed, the central portion of the suction cup body 1 is automatically pushed back in the direction opposite to the pressing direction (solid line arrow) by the restoring force of the elastic body (FIG. 3).

The second embodiment of the present invention shown in FIG. 4 is the same as the first embodiment except that the elastic body 2 is formed in a hollow cylindrical shape, so that the description is omitted. .

In the third embodiment of the present invention shown in FIG. 5, the elastic body 2 is formed separately from the suction cup body 1, and the center of the suction surface 11 is adhered with an adhesive tape. Other than that, the description is omitted because it is the same as that of the first embodiment.

In a fourth embodiment of the present invention shown in FIG. 6, the elastic body 2 is formed of a metal spline, and is fitted to a disk-shaped projection 12 at the center of the suction surface 11. Other than that, the description is omitted because it is the same as that of the first embodiment.

[0018]

Since the suction cup of the present invention is constructed as described above, the suction force can be reduced without requiring any separate parts or man-hours for lifting the center of the suction cup body in the direction opposite to the pressing direction. Can be enhanced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a product using a suction cup according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a pressed state before suction of the suction cup of the first embodiment of the present invention shown in FIG. 1;

FIG. 3 is a sectional view showing the suction state of the suction cup of FIG. 2;

FIG. 4 is a sectional view showing a suction state of a suction cup according to a second embodiment of the present invention.

FIG. 5 is a sectional view showing a suction state of a suction cup according to a third embodiment of the present invention.

FIG. 6 is a sectional view showing a suction state of a suction cup according to a fourth embodiment of the present invention.

[Explanation of symbols]

 1 suction body 2 elastic body 11 suction surface

Claims (1)

[Claims] 1. An elastic body which pushes back a central portion of a suction body in a direction opposite to a pressing direction for suction at a center portion of a substantially bosh-shaped suction surface of the suction body which is made of an elastic body. Features a suction cup.