JPS60188612A - Sucking instrument - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a device for suctioning an object by applying vacuum pressure to a chamber formed between the object and a suction cup.

BACKGROUND ART Conventionally, as this type of suction device, there is one shown in FIGS. 1 and 2. In this suction device, an adjustment member 4 is screwed into a female threaded hole 3 at the center of a dish-shaped support base 2.
This adjustment part'! A support hole 5 is formed in the center of A4. A circular suction cup 1 made of hard rubber is superimposed on the inner and outer periphery of the support base 2, and a rod 7 extending inward from a core metal 6 insert-molded in the center of the suction cup 1 is inserted into the support hole 5. ing. A handle 8 is rotatably supported at the outer end of the rod 7, and a handle 9 is rotatably attached to the outer surface of the support base 2. Then, the suction surface 1a of the suction cup 1 is placed over the suction target A, and the second
As shown in the figure, when the handle 8 is rotated from the upright position to the collapsed position, the rod 7 is lifted up and a vacuum chamber 10 is created between the suction surface 1a and the object A, and the outer periphery of the suction surface 1a is It is absorbed by object A. The raised position of the rod 7 is maintained by the contact between the head 4a of the adjustment member 4 and the handle 8. By adjusting the adjustment member 4 by moving it along the female threaded hole 3 of the support base 2, the lodging position of the handle 8 can be changed, the lifting distance of the rod 7 can be adjusted, and the pressure in the vacuum chamber 10 can be changed to adjust the suction cup 1. Adjust the adsorption force. The object A attracted to the suction cup 1 in this manner can be lifted by the handle 9.

In the suction device configured in this manner, the suction surface 1a of the rubber suction cup 1 forms one plane when not in use. Therefore,
For example, when adsorbing concrete products, the adsorption force is very weak. In other words, concrete products are usually formed using metal molds, and due to their nature, the surface is not only rough but also dotted with concavities caused by air bubbles (usually, the diameter and depth are about 5 mm at most). 50
50-60 pieces within CI11 square). Even if the suction surface 1a is superimposed on such a surface and is suctioned, outside air tends to flow into the vacuum chamber 10 through the gap between the outer periphery of the suction surface 1a and the surface of the concrete product, and the vacuum pressure becomes low. Adsorption power decreases.

An object of the present invention is to provide a suction device that can maintain and increase the suction force by improving the suction surface structure of the suction cup to prevent outside air from entering the vacuum chamber as much as possible.

Structure of the Invention In order to achieve this object, the present invention provides a protruding annular contact area made of an elastic body on the outer periphery of the suction surface of the suction cup.

EXAMPLE Below, the first embodiment of the present invention will be explained with reference to FIGS. 3 to 6. The suction device in this example is the suction device shown in the conventional example, except that only the rubber suction cup 1 is changed. The outer periphery of the suction surface 11a of the suction cup 11 corresponding to the suction cup 1 is made of an elastic material (in this embodiment, a material that is softer than the suction cup 11, for example, foamed by a batch foaming method that discontinuously produces foam). An annular band 12 made of polyurethane (polyurethane) is provided in a protruding manner, and this band 12 serves as a close contact area. This band 12 is made of rubber! It is integrally molded or glued to g11. When the band 12 with flexible elasticity is adsorbed to the surface of the concrete product A as shown in FIG. It deforms and bites into the concave part, ensuring tight contact around the four parts, improving airtightness. Therefore, the adsorption force can be increased.

In the second embodiment shown in FIGS. 7 to 9, the suction cup 11
On the outer periphery of the suction surface 11a, an annular protrusion 13 made of an elastic material (in this embodiment, soft polyurethane foam is used as in the first embodiment) is provided in a triple concentric manner,
A collection of closed chambers 14 between the respective protrusions 13 divided by these protrusions 13 is defined as a close contact area 12 . In the case of this embodiment as well, as shown in FIG. 9, each protrusion 13 deforms and bites into the large and small recesses on the surface of the concrete product Δ. Therefore, airtightness is improved and adsorption power is increased. Furthermore, in this embodiment, each protrusion 13 is narrower than the band 12 of the first embodiment, so it has even more flexible elasticity. Therefore, it is also possible to make each protrusion 13 and the suction cup 11 of the same material. Note that each protrusion 13 may have a double, four or more concentric circular shape.

In the third embodiment shown in FIG.
Connecting protrusions 15 are formed between each of the annular protrusions 13 to divide finer closed chambers 16, and these closed chambers 16
The aggregation is defined as the close contact area 12. In the second embodiment described above, as shown in FIG. 7, when each annular protrusion 13 overlaps the concave portion A1 formed by the bubble, outside air flows into the vacuum chamber 10 through each concave portion A1 and each closed chamber 14, and airtightness is achieved. However, in this third embodiment, since each closed chamber 16 is finely divided, the protrusions forming the peripheral wall of each closed chamber 16 that are continuously interposed between the outside air and the vacuum chamber 10 are Since the concave portion A1 overlaps the strip 13.15, it is almost impossible for outside air to flow into the vacuum chamber 10, and the airtightness is improved compared to the second embodiment.

In the fourth embodiment shown in FIG. 11, protrusions 17 having a regular hexagonal shape are continuously protruded from the outer periphery of the suction surface 11a to define each blockage chamber 18, and the blockage chambers 18 are aggregated. is defined as the contact area 12. Even if J3 is used in this embodiment, the airtightness is improved as in the third embodiment.

In the fifth embodiment shown in FIGS. 12 to 14, an annular protrusion 19 is provided on the outer periphery of the suction surface 11a of the suction cup 11 in a double concentric manner, and a ring is formed between the two protrusions 19. A magnet 21 is embedded in the bottom of the closed chamber 20, and the closed chamber 20 is filled with a magnetic fluid 22 held by the magnet 21.

Moreover, in the sixth embodiment shown in FIGS. 15 to 16,
The magnet 21 in the fifth embodiment is eliminated, and instead of the magnetic fluid 22, the closed chamber 20 is filled with a viscous fluid 23 and held therein. The magnetic fluid 22 or the viscous fluid 23 is in contact with Ie, 12. In each of these embodiments, when the concrete product A is adsorbed on the surface as shown in FIG. 14.16, the magnetic fluid 22 or the viscous fluid 23 flows into the large and small concave portions of the surface, making the airtightness even better. Improve further. The fifth and sixth embodiments can also be applied to the second, third and fourth embodiments.

Effects According to the present invention described in detail above, the annular elastic adhesion region 12 protruding from the outer periphery of the adsorption surface 11a deforms and bites into the unevenness of the surface of the adsorbed object A, thereby improving airtightness. The adsorption force increases.

[Brief explanation of the drawing]

Figures 1 and 2 show a conventional example, Figure 1 is a perspective view showing the entire suction device, Figure 2 is a sectional view of the suction device showing the suction state, and Figures 3 to 6 are the second implementation. For example, Fig. 3 is a sectional view of the suction device, Fig. 4 is a bottom view showing the suction surface of the suction cup,
Figures 5 and 6 are cross-sectional country names or partially enlarged cross-sectional views of the suction device showing the suction effect on the suction cup, Figures 7 to 9 show the second embodiment, and Figure 7 is the suction of the suction cup. bottom view showing the surface;
Figure 8 is a partially enlarged sectional view of the suction device, Figure 9 is a partially enlarged sectional view of the suction device showing the suction action of the suction cup, Figure 10 is a bottom view showing the suction surface of the suction cup in the third embodiment,
Fig. 1 is a partially enlarged bottom view showing the suction surface of the suction cup in the fourth embodiment, Figs. 12 to 14 show the fifth embodiment;
Fig. 2 is a bottom view showing the suction surface of the suction cup, Fig. 13 is a partially enlarged sectional view of the suction device, Fig. 14 is a partially enlarged sectional view of the suction device showing the suction action of the suction cup, and Figs. 15 and 16 are The sixth embodiment is shown, and FIG. 15 is a partially enlarged sectional view of the suction device, and FIG. 16 is a partially enlarged sectional view of the suction device showing the suction action of the suction cup. Suction cup 11, suction surface 11a, adhesion area (band) 12, protrusion 1
3, 15, 17, 19, closed chamber 14, 16° 18.20
, magnet 21, magnetic fluid 22, viscous fluid 23, object to be attracted (
Concrete products) A. Patent applicant Tadashi Mori - Agent Patent attorney On1) Hironobu

Claims (1)

[Claims] 1. A suction device characterized in that an annular contact area (12) made of an elastic body is protruded from the outer periphery of a suction surface (lla) of a suction cup (11). 2. The suction device according to claim 1, wherein the close contact area (12) is an annular band made of an elastic body. 3. The contact area (12) has protrusions (13, 15) made of elastic material.
, 17, 19).
, 18, 20>.