JP4966152B2 - Suction tool - Google Patents

Description

  The present invention relates to a suction tool that is attracted to a suction surface such as a wall surface using a vacuum suction force.

  As an adsorbing tool capable of increasing the vacuum suction force and firmly adsorbing the aspirating apparatus to a surface to be adsorbed such as a wall surface, one shown in FIG. 6 is known (Patent Document 1).

This conventional example includes a pressing plate 51, a suction cup 52, a screw shaft 53, a nut tool 54, and a vacuum wall ring body 55. By operating the screw shaft 53 integral with the suction cup 52, the central portion of the suction cup 52 is formed. The vacuum portion 57 is forcibly created between the suction surface 56 and the suction surface 56. And since the gel-like vacuum wall ring 55 attached to the lower surface of the peripheral edge of the pressing plate 51 is deformed and adhered so as to fit these, the vacuum part 57 has a high ability to maintain the vacuum state, and the suction tool Can be firmly adsorbed to the attracted surface 56.
Special table 2006-509987

  However, the above conventional example has a structure in which the upper surface of the gel-like vacuum wall ring body 55 is bonded to the lower surface of the peripheral edge of the pressing plate 51, and therefore, when the suction tool is used repeatedly, the bonded portion is easily peeled off. There is. In recent years, the performance of adhesives has been remarkably improved, but it is possible to bond the vacuum wall ring body 55 made of gel type polyurethane or the like to the hard resin pressing plate 51 with high strength and durability even with the current technology. It's not easy. If the adhesive part is peeled off at a part of the circumference of the vacuum wall ring body 55 by repeated use over a long period of time, it becomes difficult to maintain the vacuum state of the vacuum part 57.

  Moreover, in the said prior art example, the process of adhere | attaching the press board 51 and the ring body 55 for vacuum walls separately manufactured is required.

  An object of the present invention is to provide an adsorber that can solve the problem that it is difficult to maintain a vacuum state due to long-term repeated use of the above-described conventional example, and that can reduce the manufacturing cost by omitting the bonding step. And

In order to achieve the above object, the present invention provides an adsorbing tool including a pressing plate, a suction cup, a gel-like ring body, and a lifting means for pulling up the central portion of the suction cup. A plurality of upper and lower through holes arranged along the gel ring body is integrally formed on the periphery of the press plate by insert molding, and a vacuum wall forming portion located on the lower surface of the press plate periphery, a locking portion located on the upper surface of the pressing boards periphery, Ri Do and a coupling part which is coupled with the vertical through the vacuum wall forming portion is filled in the hole and the locking portion, the said vacuum wall forming portion periphery of the suction cup is characterized that you have contacted.

  According to the present invention, the vacuum wall forming part of the gel-like ring body is located on the upper surface of the press plate periphery via the connecting portions filled in the plurality of upper and lower through holes arranged along the periphery of the press plate. Since it is integrally connected to the locking portion, the gel-like ring body is firmly coupled to the pressing plate. And since it is not the coupling | bonding which used the adhesive agent, even if it uses an adsorption tool repeatedly, a gel-like ring body will not be peeled and durability can be aimed at. Further, by insert molding, the gel-like ring body can be molded and bonded to the pressing plate at the same time, and the manufacturing process can be reduced by omitting the bonding step required in the conventional example.

  The illustrated embodiment relates to an example in which the present invention is applied to a hooked suction tool.

  1 to 5, 1 is a pressing plate, 2 is a suction cup, 3 is a gel-like ring body, 4 is a lifting screw for pulling up the central portion of the suction cup 2, and 5 is a nut member screwed onto the lifting screw 4. , 6 is a cover body, and 7 is a hook.

  The pulling screw 4 is made of a hard synthetic resin and includes a screw shaft portion 4a and a plate portion 4b connected to the lower end thereof. The suction cup 2 is made of an elastomer and is formed in a disk shape with a raised central portion 2a. The suction cup 2 is formed by insert molding so that the plate portion 4b of the pulling screw 4 is embedded and integrated in the central portion 2a.

  The pressing plate 1 is made of a hard synthetic resin, and is formed in a shape of a flat bowl in plan view. As shown in detail in FIGS. 4 and 5, the pressing plate 1 includes a central upper step portion 11, a peripheral lower step portion 12, and a tapered intermediate portion 13 that connects the central upper step portion 11 and the peripheral lower step portion 12. The center upper step part 11 is provided with a circular hole 11a penetrating vertically at the center part, and a nut receiving part 11b is formed on the upper surface of the peripheral edge of the circular hole 11a so as to protrude upward. The central upper step portion 11 and the peripheral lower step portion 12 are connected by the taper-shaped intermediate portion 13 as described above, and the upper surface of the taper-shaped intermediate portion 13 and the peripheral lower step portion 12 runs radially. The reinforcing ribs 14 are formed at equal intervals. The lower peripheral step 12 has a flat lower surface 12a and an annular ridge wall 12b on the outer periphery of the upper surface. The upper surface of the reinforcing rib 14 is connected to the upper surface of the protruding wall 12b so as to be flush with each other. A locking portion 12c is formed on the outer peripheral side of the ridge wall 12b. Sixteen upper and lower through holes 15 located on the same circumference are formed at equal intervals in the inner position of the ridge wall 12b of the peripheral lower side portion 12. That is, as shown in FIG. 5, two upper and lower through holes 15 are formed in each of the regions surrounded by the pair of left and right reinforcing ribs 14 of the lower peripheral step 12 and the protruding wall 12b.

  The gel-like ring body 3 is integrally formed by insert molding on the lower peripheral portion 12 of the press disc 1 using a styrene elastomer as a material. As shown in FIGS. 4 and 5, the gel-like ring body 3 includes a vacuum wall forming portion 31 positioned on the lower surface of the peripheral lower step portion 12, and a locking portion 32 positioned on the upper surface of the peripheral lower step portion 12. The upper and lower through-holes 15 are insert-molded so as to include a coupling portion 33 that couples the vacuum wall forming portion 31 and the locking portion 32.

  As shown in FIG. 4, the vacuum wall forming portion 31 is formed in an annular shape. As shown in FIG. 4, the vacuum wall forming portion 31 has an outer peripheral wall portion 31a having a flat lower surface and an inner peripheral wall portion 31b having a lower surface tapered. Thus, the upper surface 31 c is in close contact with the lower surface 12 a of the peripheral lower step portion 12. As shown in FIG. 5, the locking portion 32 is divided into eight regions defined by the radial reinforcing ribs 14, and the lower surface 32 a of each locking portion 32 is in close contact with the upper surface of the peripheral lower step portion 12. At the same time, the outer peripheral side surface 32b of each locking portion 32 is in close contact with the inner peripheral side surface of the protruding wall 12b. The vacuum wall forming portion 31 and each locking portion 32 are connected by a pair of connecting portions 33, respectively, and the gel ring body 3 is formed by the contraction of the styrenic elastomer during the cooling of the insert molding. Is firmly fixed to the pressing plate 1 in such a manner as to sandwich the pressure.

  The nut member 5 is made of hard synthetic resin, and has a cap part 5a and a screw cylinder part 5b protruding downward from the center part of the cap part 5a. A female screw 5c is formed on the inner periphery of the screw cylinder portion 5b so as to be screwed into the screw shaft portion 4a of the pulling screw 4, and a lower end portion 5d thereof is housed in the nut receiving portion 11b of the pressing plate 1.

  The cover body 6 is made of a hard synthetic resin and is formed in a morning glory shape having a circular opening 6a in the center. The outer peripheral portion 6b of the cover body 6 has an engaging portion 6c to be engaged with the engaging portion 12c of the pressing plate 1, and a hook wire accommodating portion 6e is formed on the inner peripheral portion 6d. As shown in FIG. 4, the cover body 6 is assembled to the pressing plate 1. That is, the nut receiving portion 11b of the pressing plate 1 is inserted into the circular opening 6a of the cover body 6, its inner peripheral portion 6d is seated on the central upper step portion 11 of the pressing plate 1, and the engaging portion 6c is the locking portion. The cover body 6 is assembled to the pressing plate 1 by engaging the outer peripheral portion 6 b with the lower peripheral step portion 12 of the pressing plate 1 by forcibly engaging with 12 c.

  The screw shaft portion 4 a of the pulling screw 4 is inserted through the circular hole 11 a of the pressing plate 1 and protrudes upward, and is screwed into the screw cylinder portion 5 b of the nut member 5. When the nut tool 5 is rotated in a predetermined direction, the lower end surface of the screw cylinder portion 5b is in contact with the center upper step portion 11 of the pressing plate 1, so that the pulling screw 4 is pulled up so that the central portion 2a of the suction cup 2 is illustrated. As shown in FIG. Therefore, a vacuum part 42 is formed between the attracted surface 41 and the suction cup 2. When the pulling screw 4 is pulled up, a pressing force is applied to the peripheral portion 2 b of the suction cup 2 from the lower peripheral step portion 12 of the pressing plate 1 through the vacuum wall forming portion 31, and this is pressed against the attracted surface 41. Further, since the vacuum wall forming part 31 itself is also pressed against the attracted surface 41 and this is a gel type, even if the attracted surface 41 has irregularities and scratches, it deforms and adheres to these so The vacuum state of the vacuum part 42 can be maintained at a very high level.

  The hook 7 has a ring portion 7a on the base end side accommodated in the hook wire accommodating portion 6e of the cover body 6, and is attached to the outer periphery of the nut receiving portion 11b of the pressing plate 1 by its elastic diameter reducing force. .

  The present invention can be configured in various modes other than those shown in the above embodiments. For example, in the above embodiment, the pulling screw 4 and the nut member 5 constitute the pulling means for pulling up the central portion 2a of the suction cup 2. However, instead of such a screw-type pulling means, a lever is used. A lever-type pulling means or the like can be employed.

  The present invention can be used as an adsorbent for various uses in addition to an adsorber with a hook.

The longitudinal cross-sectional view which shows one Example of this invention. FIG. The bottom view. The longitudinal cross-sectional view which shows the effect | action. The top view which shows the press disc which insert-molded the gel-like ring body. The longitudinal cross-sectional view of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pressing board 2 Suction cup 2a Center part of a suction cup 3 Gel-like ring body 4 Lifting screw (lifting means)
5 Nut tool (lifting means)
12 Lower peripheral part (peripheral part) of pressing plate
15 Upper and lower through holes 31 Vacuum wall forming part 32 Locking part 33 Coupling part

Claims (1)

In the suction tool comprising a pressing plate, a suction cup, a gel ring body, and a lifting means for pulling up the central portion of the suction cup,
A plurality of upper and lower through holes arranged along the periphery of the press plate are provided on the periphery of the press plate,
The gel-like ring body is integrally formed on the peripheral portion of the press plate by insert molding, the vacuum wall forming portion located on the lower surface of the press plate peripheral portion, the locking portion positioned on the upper surface of the press plate peripheral portion, and the upper and lower is filled in the through hole Ri Do and a coupling portion for coupling the engaging portion and the vacuum wall forming portion,
Sucker periphery of the suction cup and the vacuum wall forming portion, characterized that you have contacted.