JPH0326331Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a suction cup installed in a shelf or the like that is attached to a wall, tile, refrigerator, etc. by suction.

``Prior Art'' As this type of suction cup, suction cups such as those shown in FIGS. 5 to 7 have been proposed. Fig. 5 Actual Kosho 36-
In the suction cup 5178, the suction surface 22 of the suction cup body 21 is entirely concave with respect to the mounting surface, forming a large gap 23. After strongly pressing the surface 22 to expel the air in the gap 23 (temporarily fixed state), the shelf 24 is rotated and the pin 26 pivotally supported on the shelf 24 is levered.
By pulling out the protruding shaft 25, engaging the pressing surface 29 and the upper surface 30, and pressing the suction cup main body 21 with the end 28 of the pressing cover 27, suction is performed. Even in the case of temporary fixing, since the gap 23 is wide, the air in the gap 23 cannot be discharged unless strong pressing is performed, and the purpose cannot be achieved.
Furthermore, even if the protruding shaft 25 is pulled out without being pressed strongly enough for the original suction, the suction force will be weak, and it will quickly come off the mounting surface over time, or the shelf 24 will be heavy. The suction is unreliable, as it may come off when objects are placed on it. After discharging as much air as possible from the gap 23, the protruding shaft 25
If you don't pull out the internal pressure, it will be difficult to reduce the pressure inside.
It is not possible to obtain strong adsorption force.

In addition, in the conventional example of Utility Model Application No. 61-16413 shown in Fig. 6,
Since the suction surface 32 of the suction cup body 31 is a horizontal surface with respect to the mounting surface, it cannot be temporarily fixed during installation.
4, the protruding shaft 35 is pulled out together with the pin 36, and a space is created on the suction surface 32 inside the end 38 of the press cover 37, thereby performing suction. In this conventional example, as described above, temporary fixing cannot be performed, so the attachment must always be done with both hands, which is inconvenient.

Next, in the conventional example of Utility Model Publication No. 56-34177 shown in Fig. 7,
The suction surface 42 of the suction cup body 41 has a protruding surface 43 at the center and an inclined surface 44 toward the outside, and only the protruding surface 43 at the center is in contact with the mounting surface. Surfaces 42 are not in contact;
When suctioning, temporary fixing cannot be done and must always be done with both hands.By rotating the shelf 48, the protruding shaft 45 is pulled out together with the pin 46, and the suction surface 4
Air is gradually pushed out from the center of 2, eventually creating a gap in the center and adsorbing it.
In this way, if temporary fixing is not possible, it is not convenient to use because it must be done with both hands.

``Problems to be solved by the invention'' However, when installing the above-mentioned suction cup, the suction cup had to be firmly pressed against the wall and then pulled up in the center to fix it, making it very cumbersome to handle. However, if it was not handled properly, the suction force was weak and it would come off easily, resulting in a lack of reliability and many problems.

This invention attempts to provide a solution that solves the conventional problems.

``Means for Solving the Problems'' This idea was developed as a means to solve the problems mentioned above.In order to be able to easily install and always obtain a constant strong adsorption force, this invention was developed to solve the problems mentioned above. The present invention provides a suction cup with voids at both sides.

"Example" This idea will be explained based on examples.

1 is a suction cup body made of soft rubber. 1st
The figure shows the state at the beginning of installation, and the suction surface 2 has a slight recess in the center with respect to the wall surface 9.
It has a central gap 3. An open outer edge gap 4 is provided outside the center. A protruding shaft 5 is inserted into the suction cup body 1. There is a pin 6 at the other end of the protruding shaft 5, which pivotally supports the shelf 10 and the protruding shaft 5.

Between the suction cup body 1 and the shelf 10 is a bowl-shaped pressing cover 7 with the above-mentioned protruding shaft 5 passing through the center.
are arranged. The end portion 8 of the pressing cover 7 is in contact with the suction cup body 1 near its outer periphery.

Here, each state when attached to the wall surface 9 will be explained with reference to FIGS. 1 to 3.

I would like to install the shelf 10 horizontally, but I am not sure at what point I should start tilting the shelf 10, so when installing, I set the mark 14 on the front side of the shelf 10 so that it is at the top. Do this after placing the
Thereby, the shelf section 10 can be mounted horizontally. By lightly pressing the suction cup body 1, the air in the central gap 3 is pushed out, and suction for temporary fixing is performed. Here, just enough adhesion to keep it from shifting is sufficient, and strong adsorption is not required. (The state shown in FIG. 1) Next, when the shelf section 10 is rotated from the temporarily fixed state, a force is applied in a direction to pull out the protruding shaft 5, with the corner section 11 serving as a fulcrum. At this time, since the corner portion 11 presses the pressing cover 7 toward the wall surface 9, the outer edge gap 4 that existed in the state shown in FIG. 1 is eliminated. (The state shown in FIG. 2) Furthermore, when the shelf section 10 is rotated until the protrusion 15 comes into contact with the top surface 16 as shown in FIG.
2 and are held in pressure contact. Here, the central gap 3 is dramatically expanded, the pressure inside is reduced, and the adsorption force is increased. At this time, the end 8 of the pressing cover 7
is pressing against the upper surface of the suction cup body 1. Also,
Even if a heavy vase or the like is placed on the recess 13 provided in the shelf 10, the suction cup body 1 will not come off from the wall surface 9 because of the strong suction force.

``Effect of the invention'' According to this invention, there is a small gap in the center, so by pressing lightly,
Since it can be temporarily fastened, it can always be operated with one hand during installation, and there is no need to press it hard when temporarily fastening, making it extremely easy to handle.

In addition, there is little air left in the gap when it is temporarily attached, and since the protruding shaft is then pulled, the pressure finally obtained in the gap will be dramatically reduced.
Great adsorption power.

In this way, it can be installed reliably and strongly.

[Brief explanation of drawings]

1 to 4 show an embodiment of this invention. 1 to 3 are side sectional views with main parts cut away, showing the order of the installation work. FIG. 4 is a rear view of the suction cup main body in the state shown in FIG. 1. FIGS. 5 to 7 are side cross-sectional views of conventional examples with main parts cut away. 1... Suction cup body, 2... Suction surface, 3... Center gap, 4... Outer edge gap, 5... Protruding shaft, 7...
...pressure cover.

Claims (1)

[Scope of utility model registration request] A suction cup body has a suction surface made of an elastic material such as rubber that expands into a flat shape, and a pressing cover that supports the suction cup body near the outer edge, and a protrusion inserted in the center of the suction cup body. By pulling up the protruding shaft from the outside of the pressing cover, expanding the gap in the center against the wall surface and reducing the internal pressure, the suction device has a small concave spherical surface in the center of the suction surface. 1. A suction cup, characterized in that the center gap has a central gap, and the outside of the center gap has an open outer edge gap whose front side is gently sloped with respect to a wall surface.