JPS6136201Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a building cleaning device for cleaning the exterior of a building.

First, a conventional building cleaning device will be explained with reference to FIGS. 1 to 4.

In the figure, 1 is a building, 1a is its rooftop, 1b is the outside surface, 1c is a mullion provided on the outside surface 1b, 1
d is a rail laid on the rooftop 1a along the outer surface 1b; 2 is a lifting body consisting of a work floor, an automatic cleaning machine, etc.;
3 is a wheel that is pivotally connected to the elevating body 2 and rolls by engaging with the mullion 1c; 4 is a wheel that suspends the elevating body 2 with a hoisting rope, and has a hoisting device for the rail 1;
A roof car runs on d, and 5 is an elevating body 2 when needed.
It is a dummy mullion which holds the same shape as the mullion 1c or has a similar shape, and is arranged at a symmetrical position with respect to the center of the roof car 4 with the same dimensions as the pitch of the mullion 1c.

Reference numeral 6 denotes a mechanism base that supports the dummy mullion 5 and whose upper part is pivotally supported by the roof car 4 and moves back and forth with respect to the outer surface 1b; 7 is a support arm fixed to the lower part of the roof car 4; 8 is fixed to this; holding cylinder, 9
10 is a support base fixed to one end of the slide shaft 9; 11 is a guide roller pivotally attached to the support base 10; 12 is a support The limit switch 13 mounted on the stand 10 is the swinging arm of the limit switch 12, and as shown in FIG. At this time, mullion 1c and dummy mullion 5
are arranged at the same position in the traveling direction of the roof car 4.

A compression spring 14 is housed in the holding cylinder 8 and always biases the sliding shaft 9 in the protruding direction, and 14' is a spring receiver fixed to the sliding shaft 9, which contacts the holding cylinder 8 and pushes the sliding shaft 9. The projecting movement of the device is prevented at a predetermined position.

15 is a swing motor fixed at a predetermined position below the mechanism base 6; 16 is a mounting base fixed to the output shaft of the swing motor 15; 17 is a limit switch fixed to the mounting base 16; and 18 is a swing of the limit switch 17. A movable arm, 19 is a support base fixed to the lower part of the roof car 4, 20 is a cylinder that is pivotally connected to the support base 19 and drives the mechanism base 6 back and forth, 21 is the upper end of the mullion 1c and protrudes from the surface of the roof 1a. This is an engaging element arranged in such a manner that the

That is, the roof car 4 runs on the rail 1d with the lifting body 2 hoisted up and engaged with the dummy mullion 5, and stops at the desired mullion 1c, so that the lifting body 2 moves as shown in FIG. Then, the process moves to Mullion 1c to clean the exterior surface 1b of the building 1. On the other hand, when the roof car 4 is running, the dummy mullion 5 is moved to the mechanism stand 6 by the cylinder 20.
is held in the forward position via. In order to stop the roof car 4 at a position corresponding to the required mullion 1c, the roof car 4 travels and the guide roller 11 comes into contact with the engaging member 21 and rides on it, as shown in FIG. This allows support base 1
0 retreats together with the limit switch 12 and the sliding shaft 9 against the biasing force of the compression spring 14. Then, when the roof car 4 moves further, the swinging arm 1
3 comes into contact with the engaging member 21 and swings, and when the angle thereof reaches θ°, the limit switch 12 is activated to stop the roof car 4 from traveling. As a result, the dummy mullion 5 is aligned with the mullion 1c in the traveling direction of the roof car 4. At this time, the limit switch 12 is moved backward via the guide roller 11, so that the roof car 4 can be stopped at a predetermined position regardless of the difference in the distance between the mullion 1c and the rail 1d.
Next, the swing motor 15 attached to the mechanism stand 6, which has been moved forward in advance, is operated to move the limit switch 17 to the outer wall 1 of the building, as shown in FIG.
Transpose it to the outside of b. Then, the mechanism base 6 is moved backward by the cylinder 20, and when the limit switch 17 is activated, the mechanism base 6 is stopped.

The angle of the swing arm 18 is adjusted so that the operating point of the limit switch 17 is such that the mullion 1c and the dummy mullion 5 operate at the same position in the direction from the roof car 4 toward the outer surface 1b. As a result, the positioning of the dummy mullion 5 with respect to the mullion 1c is completed, and the elevating body 2 is lowered.

However, the limit switch is 12th grade, and the mullion 1
Since the space near the upper end of c is used, positioning by the limit switch 17 requires detecting the outer wall 1b of the building 1 which is far away from the limit switch 12, etc., and if there is a construction error between the outer wall 1b and the mullion 1c, the error will be increased accordingly. occurs. In addition, since the limit switch 17 is located outside the building 1, there is a problem in that the mechanism becomes complicated, such as by using the swing motor 15.

This invention solves the above-mentioned drawbacks and aims to provide a building cleaning device that has a simple structure and can accurately position the mullion and the dummy mullion.

An embodiment of this invention will be described below with reference to FIG.

In the figures, the same numbers as in Figures 1 to 4 indicate corresponding parts,
22 is a mounting plate attached to the lower part of the mechanism stand 6, 23
is a dog erected on the support stand 10.

That is, upon completion of positioning of the first detector 12 consisting of a limit switch, the displacement device 10 consisting of a support base is urged in the direction of the mullion 1c by the compression spring 14, so that the distance between the dog 23 and the mullion 1c is always constant. be. Therefore, in order to position the roof car 4 in the direction toward the outside surface 1b, the mechanism stand 6, which has been advanced in advance toward the outside of the building 1, is moved by an actuating device 20 consisting of a cylinder.
Dummy mullion 5 is moved back by mullion 1.
This is achieved by the second detector 17, which is a limit switch, detecting the dog 23 at a position corresponding to c, and operates to deenergize the actuating device 20 and stop the mechanism base 6. Therefore, devices such as the swing motor 15 in FIGS. 1 to 4 can be omitted, and an inexpensive building cleaning device that can stop the roof car 4 with a simple device can be obtained.

In addition, by applying this embodiment, on the contrary, the mechanism stand 6 is moved back to the inside of the building in advance, and after the positioning by the first detector 12 is completed, the mechanism stand 6 is moved forward and the second detector 17 detects the position. A similar effect can be obtained by detecting 22. Further, according to this configuration, since the operating force of the swing arm 18 of the second detector 17 does not work in a direction contrary to the pressing force of the compression spring 14, a more accurate positioning effect can be obtained.

As explained above, this invention operates when the displacement device installed on the roof car engages with the engager disposed corresponding to the mullion provided on the building and moves backward to stop the roof car. comprising a detector and a second detector that operates in contact with the displaced displacement device to detect that the dummy mullion of the roof car is located directly above the mullion;
In the traveling direction of the roof car and in the direction toward the building exterior wall, the actuating device for the roof car and dummy mullion is stopped at the position where the dummy mullion matches the mullion, and the distance between the mullion and the displacement device is always constant. Therefore, even if there is a construction error between the outer wall and the mullion, accurate positioning of the mullion and the dummy mullion can be achieved with a simple and inexpensive configuration without causing any deviation, and the building can be cleaned efficiently. , it can be made into an inexpensive building cleaning device.

[Brief explanation of the drawing]

Figure 1 is a vertical side view of the main part of a building showing a building cleaning device, Figure 2 is a plan view of the main part of Figure 1 showing a conventional building cleaning device, and Figure 3 is a partial cross-section of the side of Figure 2. 4 is an enlarged view of the main part of FIG. 1 corresponding to FIG. 2, and FIG. 5 is a diagram showing an embodiment of the building cleaning device according to this invention, and FIG. It is. 1... Building, 1a... Rooftop, 1c... Mullion, 2... Elevating body, 4... Roof car, 5... Dummy mullion, 10... Displacement device, 12... First
Detector, 17...second detector, 20...actuating device, 21...engaging element. In the drawings, the same or corresponding parts are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] a roof car that runs along the edge of the roof of a building; a mechanism base whose upper part is pivotally supported by the roof car and moves back and forth relative to the exterior of the building via an actuation device; and a mechanism that is fixed to the mechanism base and runs along the edge of the roof. a dummy mullion that moves back and forth integrally with a mechanism base, and an elevating body that lifts and lowers the mullion arranged vertically along the cleaning surface of the building and the dummy mullion while being suspended by the roof car. , an engaging element disposed with respect to the mullion and fixed to the building; a displacement device provided on the roof car and displaced to a predetermined retreat position when the engaging element is engaged with the engaging element as the roof car runs; a first detector that is provided on the displacement device and operates to stop the roof car when the roof car reaches a predetermined position relative to the engaging element in the traveling direction; When the mullion moves toward the building and the dummy mullion is located directly above the mullion, a second actuating device that stops the actuating device by coming into contact with the retreated displacement device and thereby stopping the mechanism stand. A building cleaning device characterized by comprising a detector.