JPS6139797Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a running building cleaning machine in which an elevating object such as a cleaning unit or work floor used for cleaning or maintenance of the exterior wall of a building is suspended from a trackless roof car so that it can be raised and lowered. The present invention relates to a device, and particularly to a traveling device that allows the roof car to automatically steer along a reference tracing surface provided on the inner wall surface of a parapet on the roof surface of a building.

2. Description of the Related Art Conventionally, there has been a building cleaning machine shown in FIGS. 1 and 2 in which an elevating body used for cleaning or maintenance of the outer wall of a building is suspended from a trackless roof car. This building cleaning machine connects a roof car body 1 to a pair of driving wheels 3, 3 driven by a traveling motor 2.
and a pair of steering wheels 5, 5 attached to both ends of a rotatable axle 4. The axle 4 has a manual handle 6 attached thereto. Further, a wire rope 9 is pulled out from the tip of the arm 7 provided on the roof car body 1 via a pulley 8,
An elevating object 10 such as a cleaning unit or a work floor is suspended and fixed on the hanging end of the wire rope 9, and the elevating object 10 is moved to the building 1 by winding or paying out the wire rope 9 using the hoisting machine 11 on the roof car body 1.
He is trying to move it up and down along the outer wall surface 12a of No. 2.

In the above-mentioned building cleaning machine, when the trackless roof car is moved from an arbitrary window row (not shown) to another window row on the outer wall surface 12a of the building to position it, the drive wheels 3, 3 are activated. Then, the worker 13 moves the roof car body 1 along the parapet 14 installed on the roof of the building 12 while manually operating the handle 6 left and right, and when the roof car body 1 reaches the desired row of windows, the drive wheels 3, 3 are moved. By stopping the roof car body 1, the roof car body 1 is positioned at a desired window row.

However, the conventional system as described above has the disadvantage that it is not easy to steer the roof car body 1, and the roof car body 1 often collides with the parapet 14, resulting in damage to the parapet 14. .

This invention solves the drawbacks of the conventional ones described above and provides a running device for a building cleaning machine that can automatically bring an elevating body suspended on a roof car to face the outer wall of a building. It is an object.

An embodiment of this invention will be described below with reference to FIGS. 3 to 6.

In the drawings from FIG. 3 to FIG. 6, the same reference numerals as in FIGS. 1 and 2 indicate the same parts, and 14a is a parapet 14 on the roof of the building 12 parallel to the outer wall surface 12a of the building 12, such as a building. A reference tracing surface formed on the inner wall surface, 15, 15 are guide wheels that are attached to protrude from the side surface of the roof car body 1 facing the reference tracing surface 14a and roll on the reference tracing surface 14a, and 16a, 16b are driving motors 2. , 2; 17a, 17b are driven wheels equipped with brake devices 28, 28; 18a, 18;
b, 18c, 18d are drive wheels 16a, 16b, driven wheels 17a, 17b axle boxes, 19a, 19b, 1
9c, 19d are axle boxes 18a, 18b, 18c, 1
The axle box 1 is provided vertically eccentrically in the left-right direction near the center of the roof car body 1 with respect to the center of the roof car body 8d.
a pivot that pivots 8a, 18b, 18c, and 18d;
20a and 20b are tie rods that connect the axle boxes 18a and 18c, 18b and 18d, respectively; 21 is a tie rod that connects the operating force of the manual steering wheel 6;
0a, 22 is a vertical pivot that pivots the actuation plate 21 to the roof car body 1, 23 is fixed to the manual handle 6 at one end, and a pin 24 at the other end.
26 is a tie rod which is pivotally supported on the operating plate 21 and is fitted with a stopper 25 fixed to the roof car body 1 with a gap d when the manual handle 6 is raised. 2
0b, when the drive wheel 16b is displaced by a minute angle θ, it hits the stopper pins 27, 27 provided on the roof car body 1 to prevent further displacement. , 2 is activated, the brake device is controlled to open after a slight delay.A is an arrow indicating the direction of travel of the roof car.

In the structure as described above, when the roof car main body 1 is run along the outer wall surface 12a of the building 12, the manual handle 6 is operated in the tilted state shown by the solid line in FIG. 5, and the guide wheels 15, 15 is a reference tracing surface 14 provided on the inner wall surface of the parapet 14
The roof car main body 1 is moved to a position where it comes into contact with and rolls on the roof car body 1. After that, raise the manual handle 6 as shown by the chain line in FIG.
is interposed between the stoppers 25, 25, and the roof car main body 1 is subsequently moved in the direction of arrow A. At this time, since the drive wheels 16a and 16b are generating a force that moves the roof car body 1 forward, the axle boxes 18a and 18b, which are pivotally supported on the roof car body 1 by pivot shafts 19a and 19b, are shown in FIG. A rotational force is generated clockwise around the pivots 19a, 19b, and
Since the braking force is maintained for a short time even when the traveling motors 2, 2 are started, the shaft boxes 18c, 18d also receive resistance from the roof surface of the building 12, which is approximately the surface of the shaft 19.
Similarly to the axle boxes 18a and 18b, clockwise rotational force is generated around the axle boxes 18a and 18b. The axle boxes 18a and 18c, 18b and 18d are all connected by tie rods 20a and 20b, and when they are displaced by a certain minute angle θ, the stoppers 25,
Displacement is prevented by a stopper pin 27. Immediately after this, the brake devices 28, 28 are released and the roof car body starts running, but since the above-mentioned rotational force continues to act on each axle box while running, the displaced angle is maintained. . Therefore, the roof car main body 1 moves while generating a force P that presses the guide wheels 15, 15 against the tracing reference surface 14a provided on the parapet 14 at the same time as the roof car body 1 starts traveling. I will never leave. Also, when the main body 1 retreats from the spot, the motors 2, 2 and the brake devices 28, 28 generate a counterclockwise rotational force about the pivots 19a to 19d on each traveling wheel, as described above. Therefore, since the direction of the traveling wheels is toward the parapet tracing reference plane, the same pressing force P as in the case described above is applied.
occurs, and a similar effect can be obtained.

Therefore, the outer wall surface 12a of the building 12 and the elevating body 10 move on the rooftop of the building 7 in a state where a parallel relationship is automatically maintained, and the traveling motor 2 moves without visual manual steering. , 2 and the brake devices 28, 28, the elevating body 10 can be moved by simply driving and stopping the brake devices 28, 28.
can be positioned relative to the desired window row,
The ease of operation improves safety, and stable work can be performed without positioning errors caused by the operator's steering technique.

As explained above, the running device of the building cleaning machine according to this invention is provided with guide wheels on the surface facing the parapet of the trackless roof car, and pivots the axle box on which the running wheels are supported in the left-right direction using a pivot axis to pivot the roof car. and is equipped with a stopper that restricts the displacement of the axle box around the axis to only a minute angle,
By braking the driven wheels for a short period of time at the start of travel, the rudder of the roof car is automatically turned by a small angle at the start of travel due to the travel driving force and the braking resistance of the driven wheels, and the guide wheels are turned into parapets. The roof car is always pressed against a tracing reference surface provided on the inner wall of the building and rolls, so that the roof car moves while maintaining a parallel relationship with the outer wall of the building. Therefore, according to this invention, there is no need to manually correct the steering of the roof car, the roof car can be safely and efficiently positioned and stopped with respect to a desired row of windows, and damage to the parapet due to a collision of the roof car can be eliminated. You can also get the effect that you can.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional building cleaning machine, Fig. 2 is a plan view of the building cleaning machine of Fig. 1, and Fig. 3 is a building cleaning machine equipped with a traveling device according to an embodiment of this invention. 4 is a plan view of the same, FIG. 5 is a rear view of the same, and FIG. 6 is a plan view for explaining the same operation. 1... Roof car body, 2... Traveling motor,
10... Elevating body, 12... Building, 12a... Outer wall surface, 14... Parapet, 14a... Copying reference surface, 15... Guide wheel, 16a, 16b... Drive wheel, 17a, 17b... Driven wheel , 18a-18
d...Axle box, 19a-19d...Axis, 20a,
20b... tie rod, 21... operating plate, 23 supporting metal fittings, 25... stopper, 26... stop pin, 27... stopper pin, 28... brake device. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of Claim for Utility Model Registration] In a building cleaning machine in which the elevating body used for cleaning or maintenance of the external wall of a building is suspended from a trackless roof car so that it can be raised and lowered, a guide wheel attached to a surface facing the parapet of the roof car so as to roll on a reference tracing surface provided as a guide wheel, and a guide wheel disposed on the side opposite the parapet of the roof car,
It is pivotally connected to an axle box that is rotatably supported in a plane along the roof surface by a laterally biased axle.
a drive shaft driven by a traveling motor; and an axle box that is disposed on the parapet side of the roof car and supported rotatably within a plane along the roof surface by a shaft that is offset laterally. a pivotally mounted driven wheel; a tie rod that connects the driven wheel and the driving wheel to each other so as to rotate in conjunction with each other; A running device for a building cleaning machine, comprising: a brake device that releases after a time delay;