JPH0448942Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an adsorption element for a traveling trolley that can run on a wall, ceiling, etc.

[Prior Art] When a wall or a ceiling is made of a magnetic material, a conventional running trolley can be run on a wall surface by providing magnetic wheels on the running trolley and adhering the running trolley to the wall surface by the magnetic force of the magnetic wheels. That's what I was doing. However, since a traveling vehicle using magnetic wheels can only be used when the walls, etc. are made of magnetic material, there is a need for a traveling vehicle that can be used regardless of whether or not the walls, etc. are made of magnetic material.

For this reason, a traveling truck has been proposed in which a plurality of arms are movably attached to the truck, and suction cups capable of vacuum suction and vacuum release are provided at the tips of the arms. First, all the suction cups of this traveling truck are vacuum-suctioned to a wall or the like to hold the truck on the wall or the like. Next, divide the suction cups into several groups, release the suction state of the suction cups in one group, move the arms of the suction cups of this group in the direction of travel, and after moving, put the suction cups in the vacuum suction state again and set the suction position. advance. Thereafter, the suction positions of the suction cups are sequentially moved for each group, thereby causing the suction cups to perform a walking motion and moving the cart while it is held on a wall or the like.

In addition, the entire running trolley is formed into a vacuum chamber that can be vacuum-adsorbed and vacuum-released to create a suction cup structure, and running wheels are provided inside the vacuum chamber, and the running trolley itself is attached to a wall or the like to be housed inside the vacuum chamber. A traveling trolley that travels on walls, etc. with its traveling wheels has also been proposed.

However, the above-mentioned conventional traveling trolley that uses suction cups for walking motion operates intermittently and requires complex operations such as switching valves, so the operating speed is slow and it is difficult to increase the moving speed of the traveling trolley. In addition, even while one group of suction cups is released from vacuum and the suction cups are moved forward, the remaining group of suction cups must hold the traveling cart by adsorption to a wall surface, etc. It is necessary to provide about twice as many suction cups as the number of suction cups that have the minimum suction force to hold the vehicle, and the same number of devices that make the traveling vehicle move are also required, which increases the complexity and weight of the traveling vehicle. This results in an increase in size and a very high price. In addition, it would be quite difficult to make the traveling cart turn, resulting in a complicated structure.

In addition, with a traveling trolley that is entirely in a vacuum chamber and has running wheels inside the vacuum chamber, a large frictional resistance is always applied during running, and therefore it is difficult to simultaneously adsorb the traveling trolley to a wall surface etc. and move it. This is extremely difficult, and in order to achieve both of the above operations, the traveling truck would have to have a complicated structure.

Therefore, in order to solve such problems, the seventh
As shown in the figure, a disc-shaped body 3 having a protrusion 2 around the entire circumference is rotatably attached to the tip of a hollow shaft 1 connected to a vacuum source (not shown), and the tip has a protrusion on the outer periphery of the body 3. A flexible body 4 is fixed with adhesive or a hoop 5 so as to protrude from the tip of the main body 3.
The hollow shaft 1 is attached to a traveling truck (not shown) or the like with a required inclination angle θ such that a part of the protruding portion of the flexible body 4 contacts the wall surface 6, etc., and the entire circumference of the flexible body 4 comes into close contact with the wall surface 6, etc. A fixed adsorption element for a traveling truck has been proposed.

Note that 7 is a bearing, 8 is a bearing holder, and 9 is a seal.

After the adsorption element for a traveling trolley is placed along a wall surface 6 etc., when the vacuum source is activated to evacuate the space between the main body 3 and the protrusion 2, the flexible body 4 seals the space, so that the main body 3 is attracted to a wall surface 6, etc., and at the same time, only a part of the protrusion 2 of the main body 3 that contacts the wall surface 6, etc. supports the adsorption force as an unbalanced load, so that a force parallel to the wall surface 6, etc. is applied to the main body 3. In addition, the main body 3 can easily rotate and move in the direction of the force while adhering to the wall surface 6, etc., so that the traveling trolley can continuously attach to the wall surface 6.
etc. can be run.

[Problems to be solved by the invention] However, in the above-mentioned adsorption element for a traveling trolley, since the flexible body 4 is directly fixed to the main body 3, the movement of the flexible body 4 is restrained by the main body 3. ,
Therefore, when the wall surface 6 is a curved surface, particularly a curved surface with a large curvature, the flexible body 4 cannot follow the curved surface, and therefore cannot adsorb and run on the curved surface.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a suction element for a traveling bogie that is capable of suction traveling on a curved surface.

[Means for Solving the Problems] The present invention consists of a main body made of a disc-shaped rigid body that is integrally or separately provided with a protrusion extending in the axial direction along the entire periphery of one side, and the outer periphery of the main body is covered. A flexible member whose tip protrudes from the protrusion of the main body is attached, a part of the protrusion of the main body contacts a wall surface, etc., and the entire circumference of the flexible member is in close contact with the wall surface etc. The main body is rotatably attached to a running cart disposed against a wall surface, etc., with a required inclination angle, and a space surrounded by a protrusion on one side of the main body is connected to a vacuum source. In the device, the flexible member is composed of a flexible airtight skirt-like connecting portion that covers the outer periphery of the main body, and a sealing member that is rigid against circumferential force that is in close contact with a wall surface, etc. This is an adsorption element for use.

[Function] Therefore, in the present invention, since the sealing member is attached to the main body via the skirt-like connection part, the sealing member is not restrained by the main body and follows the wall surface, and therefore, it is possible to adsorb and run on curved surfaces. Become.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

1 and 2 are explanatory diagrams of one embodiment of the present invention, and the same parts as in FIG. 7 are given the same reference numerals.

One end of a skirt-like connecting part 10 formed of flexible and airtight rubber, rubberized cloth, plastic sheet, etc. is connected to cover the outer periphery of the main body 3, and the other end of the skirt-like connecting part 10 is made of hard rubber. A suction element is formed by connecting a seal member such as a seal ring 11 which is formed of a material such as a seal ring 11 and has a predetermined rigidity that does not cause deformation or bending when subjected to a circumferential force. As shown in FIG. 2, an appropriate number of adsorption elements (two in the figure) are attached to the traveling carriage 12.

By connecting the seal ring 11 and the main body 3 through the skirt-like connection part 10 in this way, the seal ring 11 follows the wall surface 6 without being restrained by the main body 3, so that the adsorption element has a curved wall surface. That is, suction running is possible even when the surface is a concave surface, a convex surface, or a curved surface with a mixture of concave and convex surfaces.

FIG. 3 is an explanatory diagram of another embodiment of the present invention,
In the same configuration as in FIG. 1, the seal ring 11
A seal ring 11 for the wall surface 6 is attached by pasting a flexible member 13 such as a sponge on the surface facing the wall surface 6.
The flexible member 13 has a wear-resistant sheet 14 bonded to the surface facing the wall 6 to improve the wear resistance and extend the life of the flexible member 13. It's a diagram.

4 and 5 are explanatory diagrams of still another embodiment of the present invention, in which instead of connecting the seal ring 11 directly to the skirt-like connection part 10, it is made of metal, ceramics, synthetic resin, etc. in the circumferential direction. The seal ring 11 is attached to the skirt-like connecting portion 10 via a flanged cylindrical member 15 that is rigid against the force of axial force and elastic with respect to the force in the axial direction, and is similar to that shown in FIG. It is possible to adsorb and run on a curved surface, and the seal ring 11 can be made thin.

Also, in this embodiment, the seal ring 1 is similar to that shown in FIG.
It is also possible to provide both or one of the flexible member 13 and the wear-resistant sheet 14 on the seal ring 1, and it is also possible to directly attach the flexible member 13 instead of the seal ring 11. .

FIG. 6 is an explanatory diagram of another embodiment of the present invention,
In the same configuration as in FIG. 5, the flanged cylindrical member 1
A notch 16 is provided in the flange portion of 5 to increase the elasticity in the axial direction and improve the ability to follow curved surfaces, thereby improving adsorption and running performance on curved surfaces. Also, in this embodiment, the seal ring 11
It is possible to attach both or one of the flexible member 13 and the wear-resistant sheet 14 to the seal ring 11, and it is also possible to directly attach the flexible member 13 instead of the seal ring 11.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various changes may be made without departing from the gist of the present invention.

[Effects of the invention] As described above, according to the adsorption element for a traveling bogie of the present invention, the main body and the seal member are connected by the flexible and airtight skirt-like connecting portion, so that the seal member is not restrained by the main body. It can follow the wall surface without any problem, and therefore can exhibit excellent effects such as being able to adsorb and run on curved surfaces.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the adsorption element of Fig. 1 attached to a traveling truck,
FIG. 3 is an explanatory diagram of another embodiment of the present invention, FIG. 4 is an explanatory diagram of still another embodiment of the present invention, and FIG. 5 is an explanatory diagram of another embodiment of the present invention.
FIG. 6 is an explanatory diagram of another embodiment of the present invention, and FIG. 7 is an explanatory diagram of a conventional example. In the figure, 2 is a protruding portion, 3 is a main body, 6 is a wall surface, 10 is a skirt-like connecting portion, 11 is a seal ring, 12 is a traveling carriage, 13 is a flexible member, and 15 is a cylindrical member with a flang.

Claims (1)

[Scope of utility model registration request] A main body consisting of a disk-shaped rigid body with a protrusion extending in the axial direction along the entire periphery of one side, integrally or separately, has a flexible body that covers the outer periphery of the main body and has a tip protruding from the protrusion of the main body. Attach the member with the
The main body is arranged with respect to a wall surface, etc., with a required inclination angle such that a part of the protrusion of the main body contacts the wall surface, etc., and the entire circumference of the flexible member comes into close contact with the wall surface, etc. It is rotatably attached to a running trolley,
In the adsorption element for a traveling trolley in which a space surrounded by a protrusion on one side of the main body is connected to a vacuum source, the flexible member is connected to a flexible and airtight skirt-like connection part that covers the outer periphery of the main body, a wall surface, etc. An adsorption element for a traveling bogie, characterized in that it is constructed of a sealing member that is rigid against circumferential force in close contact with each other.