JPH0483061A - Rolling prevention device for gondola - Google Patents

Abstract

PURPOSE:To ensure safety by engaging a gondola swung in such a way that it can be elevated freely, through a pair of guide pipes on both sides, and by providing a sucking crawler horizontally moved on the wall surface of a building on the lower part of the guide pipe. CONSTITUTION:Guide pipes 4, 4 are inserted into support holes of a roof car 2 that moves along a parapet 10 of a building roof, and are swung by a pin 11. A sucking crawler 7 which can move in a horizontal direction along a building wall surface 1, is provided on the lower part of the pipes 4, 4. A gondola 8 is swung from the roof car 2 through a wire rope 3, and is engaged with the guide pipe 4 through a guide arm 12 and an engagement roller 9, and the gondola 8 can be elevated and guided thereby. The gondola 8 is sandwiched between the roof car 2 and the crawler 7 sucked on the wall surface 1, through the guide pipes 4, 4, and is moved synchronously in parallel. Rolling can thus be prevented.

Description

[Detailed Description of the Invention] [Industrial Application Field] The second invention is a gondola that performs work on the outer wall of a building, and when a guide rail is not provided on the building wall, the work position is accurately maintained and wind pressure etc. The present invention relates to a gondola roll prevention device having a configuration that does not cause roll motion.

[Conventional technology]

For example, when painting a building that does not have a guide rail for the gondola on the exterior wall, it is necessary to accurately determine the distance between the gondola and the exterior wall in order to install an automatic paint machine and perform the painting. There is a need for a device that maintains the structure and prevents it from rolling due to external forces such as wind pressure. Conventionally used devices for this purpose include, for example, a gondola equipped with a fixing device having suction pads P as shown in Figure 5, or a gondola equipped with a fixing device having suction pads P as shown in Fig. Gondolas are used that are equipped with movable suction crawlers to prevent rolling.

[Problem to be solved by the invention]

However, in the example shown in FIG. 5, the suction of the suction pad must be released in order to move, so stability during the gondola movement cannot be ensured. Therefore, it is not suitable for continuous painting while ascending or descending.

In addition, in an example in which a pair of suction crawlers are installed on both sides of a gondola so that they can move vertically, when painting the next vertical space, the vacuum cup of one suction crawler will move the surface that has already been painted. This causes inconveniences such as ruining the painted surface and adhering paint to the vacuum cup.

This invention was made in view of these conventional problems, and by providing a pair of guide pipes on both sides of the gondola and installing a suction crawler movable in the horizontal direction below the guide pipes, The purpose is to solve the above problems.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a pair of guide pipes for guiding a gondola up and down on both sides of the gondola, which is lifted and lowered by a roof car movable along the roof of a building. This device is a gondola anti-swing device that is equipped with a suction crawler that can move horizontally while continuously adhering to a building wall using a plurality of vacuum cups at the bottom.The gondola also has guide arms on both sides in the lateral direction. It is preferable that the guide arm is provided inside the guide pipe and guided through an engaging roller provided at the tip of the guide arm, and that the guide pipe is formed of a unit length pipe that can be connected.

[Effect]

This invention has the above-mentioned structure, in which the gondola is suspended from a roof car that moves along a parapet on the roof of a building, and is further guided up and down on both sides by a pair of guide pipes supported by the roof car at its upper end. In addition, the pair of guide pipes has a suction crawler installed at the bottom so that they can move horizontally, so the roof car and suction crawler can move parallel to each other in synchronization with the gondola sandwiched between the guide pipes. .

Therefore, the gondola gradually lowers and descends from the top of the building wall until it has painted the area in front of the suction crawler, then moves to the next unpainted space without separating from the wall, and this time continues upward from the bottom of the wall. It can also be painted. In other words, during this time, the gondola is constantly adsorbed to the wall surface by the suction crawler vacuum cup, so the gondola, which is guided up and down by engaging the guide pipe, is restricted from moving independently in the horizontal direction, so lateral sway due to wind force etc. will not occur. No, and since the suction crawler moves horizontally, the vacuum cup will not suction the painted surface. Further, since the guide pipe is composed of pipes of unit length that can be connected, the length can be set as necessary depending on the height of the building or the vertical width of the required painted surface.

〔Example〕

The present invention will be explained below based on the drawings. 1st to 3rd
The figure shows an outline of an embodiment according to the present invention, and FIG. 4 is a diagram showing the structure of the suction crawler.

FIG. 1 shows a situation in which a gondola 8 is attached to a wall surface 1 by the device of the present invention, with FIG. 1(a) being a front view and FIG. 1(b) being a side view. In the figure, a roof car 2 is installed over a parapet 10 on the roof via rollers, and is movable along the parapet by a drive device (not shown). 3.3 is a wire rope that suspends the gondola 8, and its upper end is fixed to the roof car 2, and its lower end is wound around an endless winch (not shown) provided inside the gondola 8. 4.4 is a guide pipe, the lower end of which is suspended via a wire rope 30 by a manual winch 5 installed on the roof car 2 (see Fig. 1(b)
)reference). The upper end of the guide pipe 4 is inserted through the roller 6 into the support hole 2a of the roof car 2 (assuming the length of the guide pipe 4 is the required length), and is suspended from the roof car 2 by a pin 11 having sufficient strength.

This is because keeping the wire row 130 in an unloaded state prevents it from elongating or reducing tensile strength due to long-term loading, and when the guide pipe is under tension due to its own weight, it has less resistance to external disturbances such as wind. This is because it becomes larger.

Further, a suction crawler 7 is installed horizontally at the bottom of the guide pipe 4.4, and can be fixed to the wall surface 1 or moved horizontally while a plurality of vacuum cups 21 are suctioned one after another. There is. However, it goes without saying that this movement is controlled so as to be completely interlocked with the movement of the roof car 2. The structure of the suction crawler 7 is shown in Figure 4 (
The method shown in a) is already known, so only a brief explanation will be provided.

22 is a pipe connected to a vacuum pump, which is connected to an endless vacuum tube 24 via a spiral tube 23.
It communicates with This tube 24 is a drum 250.25 with a built-in motor! A large number of vacuum cups 21 are attached. Drum 25. ．． 25□ is attached to the guide pipe 4.4 via a holding device (not shown) so as to be rotatable in forward and reverse directions. Now drum 25. ．． 25
When □ rotates, the vacuum cup 21 turns to vacuum O.
N section! Since the suction crawler 7 is adsorbed to the wall surface, the suction crawler 7 itself moves. Since each vacuum cup 21 has a solenoid valve as shown in FIG. 4) or (C), the cup 21
communicates with the atmosphere release port (Fig. 4 (b)) or the compressor support (Fig. 4 (C)) to release the suction and enter the vacuum ON section! Then, it communicates with the vacuum pump port and moves as a whole while adhering to the wall surface.

Further, as shown in FIG. 3, the gondola 8 has guide arms 12 on both sides, and rollers 9 are provided at the tips of the gondolas. 8 prevents left and right shaking.

Further, the guide pipe 4.4 is suspended at its lower end by the manual winch 5 as described above.

Now, when the gondola 8 is moved to the right in FIG.
By switching all the vacuum cups 2■ in the N section to atmosphere release ports) and hoisting the guide pipe 4 with the hand-wound winch 5, the lift height can be easily reduced.
Obstacle A can be avoided.

〔Effect of the invention〕

As described above, according to the present invention, even on a wall surface where no guide rail is provided, it is possible to easily create a gondola that prevents rolling by combining with an existing suction crawler. Furthermore, by winding up the guide pipe, the lifting height of this device can be easily expanded or contracted depending on the situation, and unlike the conventional method, the vacuum cup does not damage the painted surface.

[Brief explanation of the drawing]

FIG. 1(a) is a schematic front view of one embodiment of the present invention, FIG. 1(b) is a side view thereof, FIG. 2(a) is a view in the direction of arrow A in FIG. (b) is a side view of the same figure (a), FIG. 3 is a diagram showing the engagement relationship between the gondola and the guide pipe, FIG. 4 (a) is an explanatory diagram of the structure of the suction crawler, C) is an example of a solenoid valve that operates a vacuum cup,
FIG. 5 is a side view of the conventional example. 1...Building wall surface, 2...Roof car,
4... Guide pipe, 7... Adsorption crawler, 8... Gondola, 9... Engagement roller, 10... Parapet, 12・・・・・・
Guide arm, 21... Vacuum cup.

Claims (3)

[Claims] (1) A gondola is suspended by a roof car that can be moved along the parapet of the building, and a pair of guide pipes guide the gondola up and down on both sides, and a plurality of vacuum cups are used at the bottom of the guide pipes to attach the gondola to the building wall. A gondola roll prevention device characterized by comprising a suction crawler that can move horizontally while continuously suctioning the gondola. (2) The gondola has guide arms on both sides in the lateral direction, and the gondola is guided by being installed inside the guide pipe via an engagement roller provided at the tip of the guide arm. Prevention device. (3) The gondola roll prevention device according to claim 1 or 2, wherein the guide pipe is constituted by a unit length pipe that can be connected.