JPH0748871Y2 - Anti-sway device for work machines - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an anti-sway device for a working machine such as a gondola that is suspended along a work surface for use in work at high places, etc. It is designed so that it can be vacuum-adsorbed by operation to prevent shaking.

[Conventional technology]

Workers perform safe and efficient work at high places such as cleaning and maintenance of large-scale wall surfaces of buildings such as middle- and high-rise buildings and large tanks, ships, power plants, etc. Work machines such as unmanned gondolas equipped with work equipment such as manned gondolas to get in and work robots are used.For example, when the wall surface of a building is used as a work surface, the inside of a roof car installed The hoisting device or the hoisting device mounted in the cage raises and lowers the cage that is hung via the wire, and moves up and down to a predetermined work surface.

In such work machines that use manned or unmanned cages, the hoisting device can be suspended through wires regardless of whether it is mounted inside the cage or installed separately on the rooftop roof car, etc. The cage often sways or sways due to wind pressure.

For this reason, a cage has been provided with an anti-sway device from the past.For example, a guide rail is previously attached to a building or the like, and a guide roller attached to the cage is engaged so as to be engaged with the anti-sway, For example, there is an axial fan attached to create a negative pressure between the work surface and the work surface so as to prevent it from shaking.

[Problems to be solved by the device]

In such a cage shake preventing device, there is a problem that the guide roller cannot be used for a building or the like in which the guide rail is not installed in advance, and the cost required for installing the guide rail increases.

When using negative pressure adsorption by an axial fan,
Since air is exhausted from the axial fan with suction, it is effective in a place with a large work space where this exhaust does not adversely affect the surroundings, but in a narrow place where buildings are close to each other. There is a problem that it is not suitable for use.

In addition, depending on the contents of work performed from inside the cage, it may not be enough for the work surface and the cage to be fixed at a constant distance. There is a problem in that such adjustment cannot be performed in any of the case of using a vacuum cleaner and the case of negative pressure adsorption by an axial fan.

The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide an anti-sway device for a working machine, which has a simple structure and operation, can obtain a sufficient suction force, and can adjust the distance between the work surface and the work machine. It is what

[Means for Solving the Problems]

In order to solve the above-mentioned problems, an anti-sway device for a working machine according to the present invention is an anti-sway device for a working machine that can move up and down along a work surface. While rotatably supporting,
It is characterized in that a suction mechanism capable of vacuum suction is provided on the work surface at the tip of this arm mechanism.

Further, the shake-preventing device for a working machine according to the present invention comprises:
In addition to the configuration described above, the base end portion of the arm mechanism is supported by the work machine so as to be movable in parallel along a work surface.

Further, in addition to the structure according to claim 1 or 2, the shaking prevention device for a working machine according to the present invention has a vacuum suction device for constantly keeping the suction mechanism in a vacuum state, and an opening for constantly separating and separating from the work surface. The opening and closing valve device is provided with a handle, and the operating direction of the handle of the opening and closing valve device is closed during adsorption and opened during separation.

[Action]

According to this shake prevention device for a working machine, an arm mechanism whose base end is rotatably supported by a working machine that is moved up and down along a work surface, and vacuum suction provided at the tip of this arm mechanism are possible. A shake prevention device composed of a suction mechanism and a suction mechanism is provided, and the suction mechanism at the tip of the arm mechanism is vacuum-sucked to the work surface to prevent shaking, and the base end of the arm mechanism is rotated. The distance to the work surface can be adjusted.

Also, the arm mechanism is composed of parallelogram links, and the base end of the arm mechanism is rotatably supported by the working machine.
The tip of the arm mechanism can always be moved in parallel, facilitating adsorption to the work surface, and by making the rotation axis vertical or horizontal, the rotation axis can be swayed in the direction. The structure of the arm mechanism itself prevents this.

Furthermore, the suction mechanism is composed of a vacuum suction device that constantly keeps the vacuum state and an on-off valve device that is always closed.
At the time of adsorption to the work surface, it is possible to simply press the adsorption mechanism without requiring any other operation, and moreover, peeling from the work surface can be easily performed by the on-off valve device.

In addition, the rotatable base end of the arm mechanism is supported so that it can move in parallel to the work surface. I am able to stop it.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 and FIG. 2 are a plan view and a right side view according to an embodiment in which a swing stop device for a working machine according to the present invention is applied to a gondola.

The gondola 10 as a working machine on which the anti-sway device 20 is installed includes a cage 11 for manned use, and a hoisting device in which two suspended wires that are fixed to a rooftop are mounted in the cage 11. It is configured so that it can be raised and lowered along the work surface W so as to be wrapped around the work surface 12, for example, a cage.
Anti-sway devices 20 are provided which project to both sides of 11.

The shake prevention device 20 is composed of an arm mechanism 21 and a suction mechanism 22 for vacuum suction, and the arm mechanism 21 of this embodiment is composed of a parallelogram link 23, and each of the parallelogram links 23. The rotation axis of the link is arranged in the vertical direction and connected.

In the arm mechanism 21 composed of the parallelogram link 23, a base 24 which is a base end portion of the arm mechanism 21 is fixed to a side surface of the cage 11, and a long length which is an intermediate portion of the arm mechanism 21 is attached to the base 24. The two first arms 25 and the second arms 26, which have the same length, are connected to each other at their base ends so as to be rotatable about a vertical axis, and the third arm 27, which is the tip of the arm mechanism 21, is connected to the first arm 25.
The second arm 26 is rotatably supported on the tip of the second arm 26 about a vertical axis, and the base 24, the first arm 25, the second arm 26 and the third arm 27 form a parallelogram.

The suction mechanism 22 is provided at the tip of the third arm 27 of the arm mechanism 21.

Details of the arm mechanism 21 and the suction mechanism 22 will be described with reference to the plane structure, the vertical cross-sectional structure, and the cross-sectional structure of the arm tip shown in FIGS.

The base 24 of the arm mechanism 21 has flange portions 28 for fixing to the cage 11 formed at both ends of a rectangular cross-section pipe material so that it can be fixed to the side of the cage 11 with bolts.
The upper corner of 24 work surface W side is notched diagonally,
I try not to interfere with 22.

The first arm 25 and the second arm 26 have the same structure, and have a hollow structure in which both ends of a quadrangular pipe material are semicircular.

The first arm 25 and the second arm 26 are attached to the base 24 by mounting ball bearings 29 on the upper and lower surfaces of the base 24 and fitting a rotary shaft 30 onto the rotary shaft 30. The first arm 25 or the second arm 26 is inserted and the nuts 31 at both ends are inserted.
And the cap nut 32.

In the third arm 27 at the tip of the arm mechanism 21, the base end portion of a tubular material having a quadrangular cross section is formed in a semicircular shape, and two left and right connecting plates 33 are integrally attached to the tip end portion.

Although the connection between the third arm 27 and the first arm 25 and the second arm 26 is not shown in FIG. 4, ball bearings are provided on the upper and lower surfaces of the third arm 27 as in the case of attachment to the base 24. The first arm is attached to the rotary shaft 34 that is attached and fitted to them.
25 or the second arm 26 is inserted and tightened with a nut and a cap nut. The first arm 25 and the second arm 26
And are arranged in parallel and mounted.

Therefore, according to such an arm mechanism 21, the base 24
The third arm 27 can always be moved in parallel to the mounting direction of, and if the mounting direction of the base 24 is perpendicular to the work surface W, the tip of the third arm 27 is always perpendicular to the work surface W. You can move to.

In addition, a ball plunger 35 is attached to the first arm 25 so as to be held in a state where the third arm 27 is retracted to the cage 11 side, and the ball plunger 35 is attached so as to project toward the base 24 side. The ball receiver 36 is attached to the position of, and by locking each other, the housed state can be maintained, and by applying a certain amount of force, it can be released and freely moved.

Next, as shown in FIG. 6, which is an enlarged view of the tip portion of FIG. 4, FIG. 5, and FIG. 4, the suction mechanism 22 provided at the tip of the arm mechanism 21 has a tip of the third arm 27. A support shaft 37, which is divided into the left and right sides of the connecting plate 33, is attached to the connecting plate 33 by the flange portion thereof, and the opening / closing valve device is provided between the supporting shafts 37.
A cylindrical valve body 39 of 38 is supported rotatably around a horizontal axis.

At the center of the valve body 39, a valve body with a large tip
40 is slidably mounted, and a plurality of ports 41 are formed in the valve body 39 corresponding to the large diameter portion so as to communicate with the atmosphere side. A rubber seat 42 is attached to the inner portion of the diameter portion to provide a seat seat surface that can be opened and closed.

A spring is interposed between the base end of the valve body 39 and the valve body 40 to urge the valve body 40 to close, and a vacuum suction is applied to the outside of the large diameter portion of the valve body 40. The seat seat surface is completely closed even when negative pressure is applied.

Furthermore, a notch is formed in the intermediate portion of the valve body 40, and the third
The lower end of a handle 43 that is attached from above the arm 27 and is rotatable about a horizontal axis is locked.
The valve body 40 is slid by 43 so that the seat surface can be opened and closed.

A suction pad 44 is attached to the tip of the valve body 39 so as to cover the tip of the valve body 40 and suck the work surface W, and a sponge rubber 45 such as a single-foam neoprene rubber is attached to the outer periphery of the tip. A sponge rubber 46 such as a soft single-cell neoprene rubber is attached to the tip surface of the attachment, so that the work surface W can be sealed.

Further, the suction pad 44 is formed with a vacuum exhaust port 47 which communicates with a suction space formed inside.

Although not shown, a vacuum pump or an air ejector for creating a vacuum using compressed air is connected to the vacuum exhaust port 47 so that the inside of the suction pad 44 can be constantly kept in a vacuum state.

In addition, a filter is attached to the opening on the atmosphere side at the tip of the port 41, and a filter 48 made of wire mesh is also attached inside the suction pad 44 with bolts so that dust etc. will not be sucked into the vacuum pump etc. I have to.

Further, as shown in FIG. 7, as the opening / closing valve device 49, the tip end surface of the valve body 51 slidable on the central portion of the valve body 50 is used as the seat seat surface, and the exhaust gas at the central portion of the suction pad 52 is exhausted. The opening 53 is opened and closed to communicate with the atmosphere side through the port 54 of the valve body 50, and the valve body 51 is formed by the negative pressure in the adsorption pad 52 and the spring 56 which are brought into a vacuum state by the vacuum exhaust port 55.
The one in which the air outlet 53 is always brought into close contact with the exhaust port 53 is also used.

In the anti-sway device 20 thus configured, the cage 11 of the gondola 10 is anti-sway in the following manner.

The bases 24 of the arm mechanism 21 are fixed to both sides of the cage 11 with bolts inserted into the flange portions 28 thereof, and the first arm 25 and the second arm 25
As shown in the arm mechanism 21 on the left side of FIG.
With the third arm 27 retracted, ball plunger
Keep 35 and ball receiver 36 locked.

Then, the cage 11 is moved up and down to a predetermined work position, and a vacuum suction device such as a vacuum pump or an air ejector of the suction mechanism 22 is operated so that the suction pad 44 can be evacuated.

After this, the operator inside the cage 11 moves the arm mechanism 21 onto the work surface W.
The suction pad 44 at the tip of the third arm 27 of the arm mechanism 21 is brought into contact with the work surface W so as to project.

Then, the on-off valve device 38 to which the suction pad 44 is attached
Since the port 41 communicating with the atmosphere side is closed by the valve body 40, the inside of the suction pad 44 is sealed with the work surface W to be in a vacuum state, and the work surface W is sucked.

This prevents the cage 11 from swaying, especially the arm mechanism 21.
Since the rotating shafts 30 and 34 of the respective arms 25 to 27 are arranged vertically, the swinging in the front-back direction can be completely prevented.

In the case of performing such shaking prevention, it is possible to perform the shaking prevention by a simple operation, without requiring a complicated operation, simply by operating the vacuum pump of the suction mechanism 22 or the like to project the arm mechanism 21. .

Further, since the arm mechanism 21 is constituted by the parallelogram link 23, the tip end portion of the third arm 27 can always be moved vertically to the work surface W, and the support shaft 37 of the suction pad 44 can be moved.
The suction pad 44 can be completely brought into close contact with the work surface W and a large suction force can be obtained together with the rotation by.

Furthermore, by changing the angles of the first arm 25 and the second arm 26 and changing the protrusion amount of the third arm 27, the distance between the cage 11 and the work surface W can be adjusted, and the optimum work distance is achieved. be able to.

On the other hand, when the work is finished and the cage 11 is moved to the next work position, the handle 43 of the opening / closing valve device 38 is moved to move the valve body.
When you stick out 40, the suction pad 44
The suction pad 44 is released from the negative pressure state and is separated from the work surface W by communicating with the atmosphere side via.

At this time, since the valve body 40 is pressed against the valve body 39 by a force slightly larger than the negative pressure applied from the suction pad 44 side by the spring, the operation force of the handle 43 may be a slight force, and the suction pad 44 can be easily operated. Can be peeled off.

Even when the on-off valve device 49 and the suction pad 52 are used, the cage can be prevented from shaking in the same manner.
Since the valve main body 50 and the valve body 51 are kept airtight by utilizing the negative pressure inside, the work surface W can be more surely adsorbed.

Next, another embodiment of the present invention will be described with reference to FIGS. 8 and 9.

This embodiment differs from the above-described embodiments in that the arm mechanism can move parallel to the work surface W and the rotation axis of the parallelogram link is arranged in the horizontal direction. The same parts are denoted by the same reference numerals and the description thereof will be omitted.

In this shake prevention device 60, a moving mechanism 61 is interposed between the base 24 of the arm mechanism 21 and the cage 11.

In this moving mechanism 61, four base frames 62 made of tubular material having a rectangular cross section are attached to the upper part of the cage 11, and two U-shaped slide frames 63 are respectively attached to the two base frames 62 at the front and rear of both ends of the cage 11. It is mounted so that it can slide.

Then, in order to fix these slide frames 63 at predetermined positions, a fixing device 64 is provided on each base frame 62, and the base frame 62 and the slide frame 63 are tightened by, for example, protruding a bolt having a handle 65. Is configured.

The flange portion 28 of the base 24 of the arm mechanism 21 is attached to such a slide frame 63 with bolts. The arm mechanism 21 itself is the arm mechanism 21 described with reference to FIGS.
Is tilted sideways and rotated by 90 degrees, and the rotating shafts 30 and 34 are arranged horizontally. Since the connecting structure and the like are the same, description thereof will be omitted.

Further, the suction mechanism 22 provided at the tip of the third arm 27
Has the same structure as that described in FIGS. 4 to 7.

In the shake prevention device 60 configured as described above, when there is an obstacle on the work surface W, the slide frame 63 of the moving mechanism 61 is expanded and contracted to avoid the obstacle, and the handle 65 of the fixing device 64 is operated. It is fixed to the base frame 62.

After that, the suction pad 44 can be sucked onto the work surface W in the same manner as the shake prevention device 20 described above to prevent the shake.

According to such an anti-sway device 60, the sway of the cage 11 is prevented by a simple operation, and in particular, each arm 25 of the arm mechanism 21 is prevented.
Since the rotating shafts 30 and 34 of ~ 27 are arranged horizontally, the horizontal shaking can be completely prevented.

Further, since the arm mechanism 21 is constituted by the parallelogram link 23, the tip end portion of the third arm 27 can always be moved vertically to the work surface W, and the support shaft 37 of the suction pad 44 can be moved.
The suction pad 44 can be completely brought into close contact with the work surface W and a large suction force can be obtained together with the rotation by.

Furthermore, by changing the angles of the first arm 25 and the second arm 26 and changing the protrusion amount of the third arm 27, the distance between the cage 11 and the work surface W can be adjusted, and the optimum work distance is achieved. be able to.

On the other hand, when the work is finished and the cage 11 is moved to the next work position, the handle 43 of the opening / closing valve device 38 is moved to move the valve body.
When you stick out 40, the suction pad 44
The suction pad 44 is released from the negative pressure state and is separated from the work surface W by communicating with the atmosphere side via.

After that, when the first arm 25 and the second arm 26 are rotated to pull in the third arm 27, the third arm 27 is placed on the base 24.
As a result, the second arm 27 can be held in the retracted state by utilizing the own weight of the third arm 27 without providing a ball plunger and a ball receiver.

Even when the on-off valve device 49 and the suction pad 52 are used, the cage can be prevented from shaking in the same manner.
Since the valve main body 50 and the valve body 51 are kept airtight by utilizing the negative pressure in the inside, it is also possible to suck the work surface W more reliably.

Next, referring to FIG. 10 and FIG.
It will be described with reference to FIG.

In this anti-sway device 70, the arm mechanism 71 has two arms.
72, 73, the base end of the first arm 72 is rotatably supported by a rotary shaft 74 perpendicular to the cage 11, and the second arm 73 is perpendicular to the tip of the first arm 72. It is rotatably supported by a rotary shaft 75.

As shown in the detailed structure in FIGS. 12 and 13, the arm mechanism 71 as described above has a hollow structure in which the bearing support cylinders 76 are attached to the upper and lower surfaces of the first arm 72 by bolts and the ball bearings 77 are interposed therebetween. The rotary shaft 74 is fitted and the upper flange of the rotary shaft 74 is fixed to the cage 11. The first arm 72 and the second arm 73 are connected to each other by welding a bearing support cylinder 78 to the upper surface of the second arm 73 and inserting a hollow rotating shaft 75 therein through two ball bearings 79. And the upper flange is bolted to the tip of the first arm 72.

In the first arm 72 and the second arm 73 as described above, the tip end of the second arm 73 is freely moved in the horizontal plane by the two rotation shafts 74 and 75, so that the fixing device 80 is rotated. 74
It is provided in.

In this fixing device 80, an operating shaft 81 is slidably mounted in the hollow portion of the rotating shaft 74, and the operating shaft 81 is provided between the lower end surface of the rotating shaft 74 and the bearing support cylinder 76 of the first arm 72. A gap is opened in and the fixing member 82 is attached, and the cage
It is fastened with a nut 85 via a bracket 83 and a spacer 84 on the 11th side. A disc spring 86 is provided in the gap between the fixed member 82 and the lower end surface of the rotating shaft 74.

Further, an eccentric cam 88 is arranged above the operation shaft 81 on a fixed plate 87 fixed to an upper flange of the rotation shaft 74, and the operation shaft 81
It is attached to 81 by a pin 89, and a handle 91 is attached to this eccentric cam 88 via a mounting plate 90.

Therefore, when the handle 91 is rotated to rotate the eccentric cam 88, the eccentric cam 88 is rotated on the fixed plate 87 on the upper flange of the rotation shaft 74, and the operation shaft 81 is pulled up.

As a result, the fixing member 82 is pulled up against the disc spring 86 and comes into contact with the lower end surface of the rotating shaft 74 and the bearing support cylinder 76,
The first arm 72 is attached to the rotating shaft 74 in the fixed state via the fixing member 82.
Becomes fixed, and the rotation of the first arm 72 can be fixed.

A suction mechanism 92 is provided at the tip of the arm mechanism 71.

In this suction mechanism 92, as shown in detail in FIG. 13, a suction frame 95 is provided at the tip of the second arm 73 via a rotary shaft 93 and a ball bearing 94 so as to be rotatable around a vertical axis. Has been.

A suction pad 97 is attached to the tip of the suction frame 95 via a spherical joint 96, a vacuum exhaust port 98 is formed in the suction pad 97, and a vacuum pump or the like (not shown) is connected to the suction pad 97.

Further, inside the suction frame 95, a limit valve 99 is attached, the port is switched by operating the handle 101 of the operation cam 100, and the inside of the suction pad 97 can be shut off or communicated with the atmosphere. The spring plunger 102 is attached to the suction frame 95 so that the operation position can be held, and the tip end portion can be locked in the recess 103 of the operation cam 100.

In the shake-preventing device 70 shown in FIGS. 12 and 13, a connecting rod 104 parallel to the first arm 72 is provided at the base ends of the first arm 72 and the second arm 73 to form a parallelogram link. The arm mechanism 21 has a structure similar to that of the arm mechanism 21 described in FIGS. 1 and 2, but the arm mechanism without the connecting rod 104 corresponds to the arm mechanism 71 in FIGS. 10 and 11. .

The shaking prevention of the cage 11 by such a shaking prevention device 70 is performed as follows.

The arm mechanisms 71 attached to both sides of the cage 11 are in a state in which the suction pads 97 are pulled in like the left side arm mechanism 71 in FIG. 10, and the first arm 72 is fixed by the fixing device 80.

Next, the cage 11 is moved up and down to a predetermined work position, and a vacuum suction device such as a vacuum pump or an air ejector of the suction mechanism 92 is operated so that the suction pad 97 can be evacuated.

After this, the operator inside the cage 11 moves the fixing device of the arm mechanism 71.
The fixing by 80 is released, and the suction pad 97 at the tip of the second arm 73 of the arm mechanism 71 is applied to the work surface W to be vacuum-sucked.

Then, the distance between the cage 11 and the work surface W is adjusted to be a predetermined distance, the handle 91 of the fixing device 80 is operated to fix the first arm 72, and this state is maintained.

In this way, the suction pad 97 is sucked onto the work surface W, and the first arm 72 of the arm mechanism 71 is fixed by the fixing device 80, so that the cage 11 can be prevented from swinging and the work surface can be prevented. The distance from W can be kept optimal.

Further, since the suction pads 97 are connected via the spherical joint 96, the suction pads 97 can be easily brought into close contact with the work surface W, and the suction work is further facilitated.

Furthermore, as shown in FIG. 12 and FIG.
If the connecting rod 104 is provided to 71 to form a parallelogram link and the first arm 72 is fixed by the fixing device 80, it becomes easier to maintain the distance between the cage 11 and the work surface W, and Always keep the tip of arm mechanism 71 at work surface W
It can also be moved vertically with respect to.

On the other hand, when moving to the next work position after the work is completed,
The handle 101 for operating the limit valve 99 switches the flow path of the limit valve 99 via the operation cam 100 to separate the suction pad 97 from the work surface W so that the suction pad 97 communicates with the atmosphere side, and the arm mechanism 71 is fixed. Release and the second arm
73 and the suction pad 97 should be pulled in.

Also in such an anti-sway device 70, the anti-sway of the cage 11 can be performed by a simple operation, similarly to the device described above.

Next, still another embodiment of the present invention will be described with reference to FIG.

In this shake-preventing device 110, the structure of the arm mechanism 111 is simplified, and is composed of one arm 112.

The arm 112 of the arm mechanism 111 has a base end attached to a base 113 fixed to a support of the cage 11 via a pivot shaft 114 arranged vertically, and a suction mechanism 115 arranged vertically at the tip. It is attached via a rotating shaft 116.

As the suction mechanism 115, there are shown in FIGS.
Any of the structures shown in FIG. 13 and FIG. 13 may be used and is appropriately selected.

Even in such an anti-sway device 110, the cage can easily be anti-sway by adsorbing the suction pad 117 at the tip of the arm mechanism 111 to the work surface W.

In addition, in the above-mentioned embodiment, each shake-preventing device has been described independently, but a shake-stopping device in which the respective constituent elements are combined may be used.

Although the gondola cage is the object of the shake prevention, it can be widely applied to those that are suspended by a wire or the like to be lifted and lowered, and working machines that use a combination of horizontal movement for lifting and lowering.

Further, the number of arms of the arm mechanism is not limited to the case of the embodiment, and a larger number of arms may be provided, or a fixing device may be provided on each of the rotating shafts so that the distance from the work surface can be more surely secured. It can also be held.

Further, the peeling from the work surface of the suction mechanism is performed in communication with the atmosphere side, but it is also possible to send the pressurized air to perform the peeling more positively.

Furthermore, although each arm of the arm mechanism is connected by either a horizontal rotation axis or a vertical rotation axis, it is also possible to combine these to increase the degree of freedom of the arm mechanism. it can.

Further, the case where the suction pad is intended for a work surface configured by a flat surface has been described, but the work surface configured by a curved surface has a shape that can be closely adhered to in advance, or the suction pad itself has flexibility. It can also be made of material so that it can be handled.

Further, each component may be modified within the scope of the invention.

[Effect of device]

As described above in detail with reference to the embodiments, according to the swing preventive device for a working machine of the present invention, the arm mechanism in which the base end is rotatably supported by the working machine that is moved up and down along the working surface. Since a shake prevention device composed of a suction mechanism capable of vacuum suction provided at the tip of the arm mechanism is provided, the suction mechanism at the tip of the arm mechanism is vacuum sucked onto the work surface to prevent shake. At the same time, the distance to the work surface can be adjusted by rotating the base end of the arm mechanism.

Also, since the arm mechanism is composed of parallelogram links, and the base end of the arm mechanism is rotatably supported by the working machine,
The tip of the arm mechanism can always be moved in parallel, facilitating adsorption to the work surface, and by making the rotation axis vertical or horizontal, shaking in the direction parallel to the rotation axis can be achieved. Can be prevented by the structure itself.

Furthermore, since the suction mechanism is composed of a vacuum suction device that constantly maintains a vacuum state and an on-off valve device that is always closed,
At the time of suction on the work surface, the suction mechanism is merely pressed against the work surface without requiring any other operation, and the work surface can be easily peeled off by the on-off valve device.

Further, since the rotatable base end portion of the arm mechanism is supported so as to be movable in parallel to the work surface, even if there is an obstacle on the work surface, it can be avoided and absorbed, and the work surface It is possible to reliably carry out anti-sway regardless of the state.

Therefore, it is possible to perform the work at high places and the work for cargo handling more safely, and it is also possible to maintain the optimum distance from the work surface.

[Brief description of drawings]

1 to 6 relate to an embodiment of an anti-sway device for a working machine according to the present invention. FIG. 1 is a plan view, FIG. 2 is a right side view, and FIG. 3 is a detailed view of a planar structure. FIG. 4 is a detailed view of the vertical cross-sectional structure, and FIG. 5 is a detailed view of the cross-sectional structure of the arm tip.
FIG. 6 is a detailed view of the cross-sectional structure of the suction mechanism, FIG. 7 is a detailed view of the cross-sectional structure of another embodiment of the suction mechanism, and FIGS. 8 and 9 are other examples of the shake preventive device of the working machine of the present invention. FIG. 10 is a plan view and a right side view of one embodiment of the present invention, and FIG. 10 to FIG.
FIG. 10 is a plan view, FIG. 11 is a right side view, FIG. 12 is a detailed view of a planar structure, FIG. 13 is a detailed view of a longitudinal sectional structure, and FIG. FIG. 3 is a plan view of one arm portion of the example of FIG. 10: Gondola, 11: Cage, 12: Hoisting device, W …… Work surface, 20: Shaking prevention device for work machine, 21: Arm mechanism, 22:
Adsorption mechanism, 23: parallelogram link, 24: base, 25: first arm, 26: second arm, 27: third arm, 38: open / close valve mechanism, 39: valve body, 40: valve body, 41 : Port, 44: Suction pad,
47: vacuum exhaust port, 49: open / close valve mechanism, 50: valve body, 51: valve body,
52: Suction pad, 54: Port, 55: Vacuum exhaust port, 60: Shaking prevention device for work machine, 61: Moving mechanism, 62: Base frame,
63: Slide frame, 64: Fixing device, 70: Shaking prevention device for work machine, 71: Arm mechanism, 72: First arm, 73: Second
Arm, 80: Fixing device, 92: Suction mechanism, 97: Suction pad, 9
8: Vacuum exhaust port, 110: Shaking prevention device for work machine, 111: Arm mechanism, 112: Arm, 115: Adsorption mechanism, 117: Adsorption pad.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Microfilm (JP, U), which is a photograph of the contents of the specification and drawings attached to the application for Japanese Patent Application No. 61-181629 (No. 63-86254). A microfilm (JP, U) of the details and drawings attached to the application for Japanese Utility Model Application 60-24782 (Japanese Utility Model Application No. 61-141458)

Claims (3)

[Scope of utility model registration request] 1. A shake preventive device for a working machine capable of moving up and down along a work surface, wherein a base end portion of an arm mechanism composed of a parallelogram link is rotatably supported on the working machine and the arm mechanism of the arm mechanism is supported. A shaking prevention device for a working machine, characterized in that a suction mechanism capable of vacuum suction is provided on the work surface at the tip. 2. A shaking prevention device for a work machine according to claim 1, wherein a base end portion of the arm mechanism is supported by the work machine so as to be movable in parallel along a work surface. 3. A vacuum suction device for constantly holding the suction mechanism in a vacuum state, and an on-off valve device having a handle that is always closed and is opened when the suction mechanism is peeled off from a work surface. 3. The anti-sway device for a working machine according to claim 1, wherein the operation direction of the handle is closed during suction and opened during peeling.