JPH07110620B2 - Adsorption device for wall surface moving work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is suitable for securely fixing a wall surface moving work machine to a concrete surface or a tile surface having unevenness on a vertical outer wall surface of a high-rise building or the like. The present invention relates to an adsorption device.

[Conventional technology]

As a device of this type, there is a device which is adsorbed on a wall surface surrounded by a gas or a liquid and moves along the wall as described in Japanese Patent Publication No. 60-28715.

[Problems to be Solved by the Invention]

This device is designed to prevent the seal part that is in contact with the wall surface from being deformed by the projections such as welding beats on the wall surface due to the movement of the device and breaking the airtight contact between the seal part and the wall surface. However, there is a problem in that it does not consider adsorption of particularly uneven wall surfaces such as concrete and tile surfaces.

It is an object of the present invention to obtain an adsorption device that can reliably fix a wall surface moving work machine even on a wall surface that is highly uneven such as a concrete surface or a tile surface.

[Means for Solving the Problems]

In order to achieve the above object, the present invention relates to a suction device of a wall surface moving work machine that is temporarily fixed on a wall surface by a vacuum suction force of a vacuum suction device and moves on the wall surface to perform work. An inner vacuum chamber formed by a pad,
A multi-structured vacuum including an outer vacuum chamber formed by elastic vacuum pads so as to surround the inner vacuum chamber via the elastic vacuum pads on the outer periphery of the inner vacuum chamber. A chamber and a vacuum generator independently connected to the inner and outer vacuum chambers, respectively.

[Action]

There are joints and cracks on the wall surface that contacts the pad member,
In the case where sealing is not possible and the vacuum degree of the vacuum chamber does not rise and the suction force is not generated, since the vacuum chamber is further provided so as to surround the outside of the inner vacuum chamber, the vacuum degree can be secured in the outer vacuum chamber. Also, the vacuum degree is secured in the inner vacuum chamber and the suction force can be generated. In addition, when there are joints and cracks on the wall surface of the outer vacuum chamber that comes into contact with the pad member, sealing is not possible, the vacuum degree of the vacuum chamber does not rise, and the suction force does not occur, the vacuum chamber is provided inside. So
A vacuum degree can be secured in the inner vacuum chamber, and a suction force can be generated. Further, since independent vacuum generators are connected to the plurality of vacuum chambers respectively, the present invention can be applied to the vacuum chambers of the other vacuum chambers as compared with the configuration in which one vacuum generator is connected to the plurality of vacuum chambers. The degree of vacuum can be secured without being affected by the degree of vacuum. As a result, the suction force of the suction device can be secured even on a vertical wall surface with uneven concrete surfaces or tile surfaces, and the wall surface moving work machine can be reliably fixed to the wall surface. Further, since the suction force is reliably obtained, the wall surface moving work machine can be securely fixed to the wall surface without increasing the number of suction devices. Therefore, when the wall surface moving work machine is moved so that the position of the suction device can be moved, the number of devices that move the position of the suction device can be reduced.

〔Example〕

 An embodiment of the device of the present invention will be described below with reference to the drawings.

1 and 2 show the overall construction of a wall moving work machine equipped with the adsorption device of the present invention. The wall moving work machine is a hanging unit such as a crane installed on the roof of a high-rise building 5 or the like. 1 and a moving unit 2 suspended along a vertical wall surface by a wire 3. The moving unit 2 is, for example, a vacuum suction pad 4 of a plurality of (four in this embodiment) vacuum suction devices, and a working unit 6 having tools for cleaning and adhering wall surfaces.
The work unit 6 is movably supported in the left-right direction in the figure, and the left-right direction moving mechanism 7 is provided with a ball screw, a guide, and a drive unit. It is composed of a vertical movement mechanism 8 having a machine.

FIG. 3 is a sectional view showing a vacuum suction pad 4 of a vacuum suction device attached to the moving unit 2. The vacuum suction pad 4 has, for example, a circular shape forming a main body 9, a flange 10, and an inner vacuum chamber 11 '. The inner pad member 11 is made of an elastic material such as soft rubber, and the outer pad member 12 is made of the same elastic material as the circular member that forms the outer vacuum chamber 12 '. ′ And the outer vacuum chamber 12 ′ are formed separately, and these vacuum chamber 11 ′ and vacuum chamber
12 'is connected via passages 13 and 14 to vacuum generators 15 and 16 such as an ejector type or vacuum pump.

Next, the operation of the device of the present invention will be described.

First, the moving unit 2 is hung by the hanging unit 1 and moved to a predetermined position on the vertical wall surface of the high-rise building 5, and then the moving unit 2 is fixed to the vertical wall surface by a plurality of vacuum suction pads 4. At this time, the moving unit 2 is securely fixed to the wall surface by the vacuum suction force of the vacuum pad 4, even in the case where the vertical wall surface has an uneven surface such as a concrete surface or a tile surface. That is, since the vacuum chamber 11 'and the vacuum chamber 12' are separated and connected to the respective vacuum generators 15 and 16, for example, tile joints and cracks are present at the locations where they contact the inner pad member 11. However, since the suction force can be generated in the inner vacuum chamber 11 'by sealing with the outer pad member 12, the moving unit 2 can be securely fixed to the wall surface without reducing the suction force to the wall surface. You can

Returning to the front, when the fixing of the moving unit 2 to the wall surface is completed, the working unit 6 operates the lateral moving mechanism 7 or the vertical moving mechanism 8, and the working unit 6 is predetermined by the ball screw connected to the driving machine. Move to the position and perform cleaning work on the wall.

FIG. 4 shows another embodiment of the device of the present invention, in which a circular elastic member such as a sponge 17 is provided on the outer peripheral side in the vicinity of the vacuum suction pad member 12 forming the outer vacuum chamber 12 '.
Is provided.

By providing the seal member 17 as described above, even with respect to the severe unevenness of the wall surface that cannot be completely sealed by the inner pad member 11 and the outer pad member 12, the seal member 17 creates a gap corresponding to the uneven surface. Since this is prevented, the moving unit 2 can be reliably fixed to the wall surface without reducing the suction force.

〔The invention's effect〕

According to the present invention, it is possible to obtain the effect that the suction force of the suction device can be secured and the wall surface moving work machine can be securely fixed to the wall surface even on a vertical wall surface having uneven concrete surface or tile surface. Further, since the suction force is reliably obtained, the wall surface moving work machine can be securely fixed to the wall surface without increasing the number of the suction device, and therefore, the wall surface moving work machine can be moved by moving the position of the suction device. In the case of moving, the effect that the number of devices for moving the position of the suction device can be reduced is also obtained.

[Brief description of drawings]

1 and 2 show a wall surface moving work machine equipped with an adsorption device of the present invention. Fig. 1 is a front view, Fig. 2 is a side view of Fig. 1, and Fig. 3 is an adsorption device of the present invention. Sectional view showing the fourth
The drawing is a cross-sectional view showing another embodiment of the adsorption device of the present invention. 1 ... Suspension unit, 2 ... Moving unit, 4 ... Vacuum suction pad, 11 ... Inner vacuum pad member, 11 '...
Inner vacuum chamber, 12 …… Outer vacuum pad member, 12 ′ ……
Outside vacuum chamber, 17 ... Sealing member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masato Mori 344-1, Nase-cho, Totsuka-ku, Yokohama, Kanagawa Taisei Corporation Ltd. Technical Research Institute (72) Shinji Yoshida 603, Kandachi-cho, Tsuchiura-shi, Ibaraki Shares Company Tsuchiura Factory, Hiritsu Manufacturing Co., Ltd. (56) References JP-A-60-49113 (JP, A) JP-A-59-220468 (JP, A)

Claims (2)

[Claims] 1. An inside formed by an elastic vacuum pad in a suction device of a wall surface moving work machine that is temporarily fixed on a wall surface by a vacuum suction force of a vacuum suction device and moves on the wall surface to perform work. And an outer vacuum chamber formed by elastic vacuum pads so as to surround the inner vacuum chamber via the elastic vacuum pads on the outer periphery of the inner vacuum chamber. And a vacuum generator that is independently connected to the inner and outer vacuum chambers, respectively. 2. An elastic seal member provided further outside the outer vacuum chamber so as to surround the outer vacuum chamber with a space therebetween. Adsorption device for wall surface work machines.