JP2000027444A - Working device for wall surface of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a building wall surface working device capable of being easily mounted on a building because of its simple constitution and having a wide range of applications so that it can be mounted even on different buildings, allowing workers to safely and surely move and do work. SOLUTION: A wall cleaning device 1 has a guide ladder 20 erected between a projecting beam 10 provided on the top of a building 2 and a ground truck 30 placed on the ground adjacent to the wall surface 2A of the building 2 and a cleaning unit 40 hanging from a hanging rope 71 is provided between the guide ladder 20 and the wall surface 2A in such a manner that the main body part of the cleaning unit 40 is energized and pressed against the wall surface 2A by an engagement pressing mechanism which the cleaning unit 40 includes. By extending and retracting the hanging rope 71 by means of an endless winder 73, the cleaning unit 40 is driven to rise and fall to clean the wall surface 2A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building wall working apparatus which moves along a wall of a building to perform operations such as window cleaning.

[0002]

2. Description of the Related Art Recently, an automatic operation device that moves along a wall surface and automatically performs an operation on a wall surface of a building, such as cleaning a window, has been used.

[0003] Such an automatic working device is, for example, in the case of a window cleaning device that presses a squeegee against a wall surface to wipe off dirt, the work device that operates by pressing the squeegee against the wall surface is opposed to a direction in which the working device is separated from the wall surface. It is necessary to resist the force, and for this reason, a guide rail provided in advance on the outer surface of the building is irremovably engaged and moves along the guide rail, or a building without a guide rail is provided. In such a case, it is configured to adsorb and move on the wall surface of the building.

[0004]

However, in an automatic working device configured to move along a guide rail provided on the outer surface of a building, the guide rail is provided according to the outer shape of the building. Each building has a different shape, arrangement pitch, etc. As a result, automatic work equipment must be configured to correspond to the building, so it has to be a dedicated device and lacks versatility, and it is unreasonable and costly There was a problem of getting high.

[0005] In addition, in a configuration in which the apparatus moves by being attracted to the wall surface of a building, the apparatus supports a heavy object such as a cleaning device and adsorbs so as not to fall on the wall surface of the building against a reaction force due to work. It is extremely difficult to construct so that it can move.In addition, it is connected to an auxiliary rope hanging down from the top of the building in case of trouble such as a power failure or a gust, etc. When it comes off, it is hung by the auxiliary rope, which may be shaken by the wind and damage the outer surface of the building.

The present invention has been made in view of the above problems, and has a wide versatility that can be easily mounted on a building with a simple configuration and can be mounted on a different building, and is safe. It is an object of the present invention to provide a wall surface working device for a building capable of reliably moving and performing work.

[0007]

According to the present invention, there is provided a wall surface working apparatus for a building, wherein the guide supporting member is disposed in the vicinity of the wall of the building and substantially along the wall. And a moving drive unit for moving and driving the working device. In the working device, an engaging mechanism for engaging with the guide support member is provided via a telescopic mechanism from its main body. Along with the biasing means is provided to be biased in a direction away from the main body portion,
The engagement mechanism engages with the guide support member, presses and urges the working device against the wall surface of the building with the urging force of the urging means, receives a reaction force of the work device with the guide support member, and moves the work device. It is characterized in that it is configured to move on the wall surface along the guide support member by driving means and to work on the wall surface with the working device.

Further, the guide support member is a structure, and is provided with a guide member extending in the moving direction of the working device.

Further, the guide support member is a rope member arranged in a moving direction of the working device.

[0010] The moving drive means is configured to move and drive the working device by winding and unwinding a drive rope member coupled to the working device.

The working device is a window cleaning device that cleans the squeegee by pressing the squeegee against a window on the wall surface.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing a conceptual configuration of a window cleaning device as one configuration example of a building wall working device according to the present invention, and FIG. 2 is a front view thereof. In this configuration example, the guide ladder 20 is used as a structure as a guide support member.

The illustrated window cleaning device 1 includes a guide ladder 2 between a projecting beam 10 provided on the roof of a building 2 and a ground carriage 30 provided on the ground adjacent to a wall surface 2A of the building 2.
A cleaning unit 40 is provided between the guide ladder 20 and the wall surface 2A.

The projecting beam 10 has a rectangular frame shape in plan view. A moving roller 11 is provided on the lower surface side of the rear end, and a wheel 13 is provided at the tip of a leg portion 12 provided on the lower surface side of the central portion. It is disposed horizontally on the roof 2B of the building 2 via the moving roller 11 and the wheels 13 with its tip protruding a predetermined amount from the wall surface 2A, and supports the guide ladder 20 at the tip. . The moving roller 11 and the wheels 13 are provided with a horizontal axis orthogonal to the wall surface 2A of the building 2 as a rotation axis, and the moving roller 11 is mounted on a guide rail 2C laid on the roof 2B of the building 2 along the wall surface 2A. The projection 10 is immovably engaged in the front-rear direction, and the projecting beam 10 is movable along the guide rail 2C (that is, along the wall surface 2A).

The guide ladder 20 is formed with a pair of guide bars 21 as a guide member which is continuous in the longitudinal direction by combining a structural member 22 made of an aluminum tube. Is supported so as to be swingable on a horizontal axis parallel to the shaft, and the lower end is immovably fixed to the ground bogie 30.
It is provided as a vertical line parallel to A. Thus, the pair of guide bars 21 are spaced apart from each other by a predetermined distance in the horizontal direction, and are equally spaced from the wall surface 2A.

As shown in FIG. 3 which is an enlarged side view and FIG. 4 which is a view as viewed from the direction indicated by the arrow A in FIG. 3, the carriage 30 includes a control device for controlling the drive of the entire window cleaning device, a cleaning unit such as a water supply / drainage tank and a pump. And a weight 32 for making the total weight immovable in the direction by the urging force of an engagement pressing mechanism of a cleaning unit 40 as a working device described later, and the wall 2A. In the parallel direction, it can be moved by wheels 33 provided on the lower surface side. The weight 32 is not always necessary,
It is also possible to adopt a configuration in which the anchor cannot move on the ground.

The connecting portion of the guide ladder 20 with the carriage 30 is provided in a connecting portion 23 provided at the lower end on each of the left and right sides of the guide ladder 20 and having an inverted U-shape as viewed from the front and opening downward.
The axial direction is the front-back direction (the direction orthogonal to the wall surface 2A)
An adjusting screw 24 is provided, and a coupling member 25 screwed to the adjusting screw 24 at the upper end is located inside a U-shaped fixing bracket 33 provided on the ground bogie 30, and is fixedly inserted from the side. It is fixed by a pin 34. That is, the lower end connecting portion 23 of the guide ladder 20 and the connecting member 25 connected to the fixing bracket 33 of the ground bogie 30 by the fixing pin 34.
Are connected via an adjustment screw 24, and by rotating the adjustment screw 24, the ground bogie 30
Without moving the lower end of the guide ladder 20 to the wall 2A.
The parallelism with respect to the wall surface 2A of the guide ladder 20 can be adjusted by moving away from and to the side.

The cleaning unit 40 is provided with an engagement pressing mechanism 50 as an expansion mechanism on the outer upper surface side of a main body 41 provided with a cleaning mechanism such as a water sprinkler and a squeegee 42.

As shown in FIG. 5 which is a partial cross-sectional front view excluding the engagement pressing mechanism 50, and FIG. 6 which is a conceptual vertical cross-sectional view corresponding to a BB cross section in FIG. 4
Wheels 43 are provided at four corners of 1A so as to be rotatable about a rotation axis in the width direction, and the wheels 43 come into contact with the wall surface 2A of the building 2 and move on the wall surface 2A by a driving mechanism 70 as a movement driving means described later. It is designed to be driven up and down.

Squeegees 42 (42U, 42L) are provided on the upper and lower sides of the main body 41 so as to be swingable via arms 42A. The arms 42A of the upper and lower squeegees 42 are vertically moved by a motor 44. The upper and lower squeegees 42 are connected to the upper and lower ends of a rack shaft 45 that is driven to move through the links 42B, respectively.
The U and 42L are swinged in opposite directions by the movement drive of the rack shaft 45 driven by the motor 44 so that one of the U and 42L is pressed against the wall surface 2A.
That is, as shown by the solid line in the figure, when the upper squeegee 42U is pressed against the wall surface 2A, the lower squeegee 42L is pressed.
Is in a retracted state separated from the wall surface 2A, and conversely, in a state in which the lower squeegee 42L is pressed against the wall surface 2A as shown by an imaginary line, the upper squeegee 42U is in a retracted state separated from the wall surface 2A. Is what it is.

As shown in FIG. 7 which is an enlarged side view of the cleaning unit 40 and FIG. 8 which is an enlarged plan view, the engagement pressing mechanism 50 is attached to the side separated from the main body 41 by the urging force of the springs 53 and 54. Engaging mechanisms 60 are provided at the four corners of the base 51 provided to be urged.

A slide shaft 52 is erected on the left and right sides of the base 51 on opposite sides of the main body 41 at the center in the vertical direction.
A spring 53 slidably fitted to a slide bearing 46 mounted on the side surface of the main body 41 and supported by the main body 41 so as to be able to be separated from and brought into contact with a predetermined stroke. The main body 41 is urged by a spring 54 interposed between the main body 41 and the rear surface of the main body 41. These springs 53,5
Reference numeral 4 denotes an urging means.

The total biasing force of the springs 53 and 54 is
The size of the squeegee 42 is set to a value which is sufficiently larger than the pressing force of the squeegee 42 against the wall surface 2A at the time of the cleaning action, and can stably press the main body portion 41 against the wall surface 2A against the reaction force.

The engaging mechanism 60 is provided with a pressing roller 61 rotatably provided on a side edge of the base 51 with a horizontal rotation axis parallel to the wall surface 2A. A roller 62 is provided rotatably. The outer peripheral surface of the pressing roller 61 is formed in a semicircular shape corresponding to the guide bar 21 of the guide ladder 20, and the guide bar 21 is irremovably accommodated between the outer peripheral surface and the engaging roller 62. It can move along.

The cleaning unit 40 having the above-described structure includes the main body 4
1 is suspended by a suspension rope 71 as a drive rope member of a drive mechanism 70 coupled to the upper end of the guide ladder 20.
And is installed in engagement with the guide bar 20. In this installation state, the main body part 41 includes the spring 53 of the engagement pressing mechanism 50,
The urging force of 54 presses and urges the wall 2A.

In the drive mechanism 70, a suspension rope 71 as a drive rope member connected to the upper end of the main body 41 of the cleaning unit 40 is provided on the ground carriage 30 by winding a pulley 72 provided on the projecting beam 10. Endless winder 73
The endless winder 73
The hanging and rewinding of the hanging rope 71 drives the cleaning unit suspended and supported to move up and down.

The endless winder 73 includes a motor 7
3A, the sheave is rotatably driven by the 3A, and the hanging rope 71 is wound around the sheave, and the winding portion moves on the hanging rope 71 by the rotation of the sheave by the motor 73A. Are relatively driven to move.

Thus, the window cleaning device 1 having the above-described configuration allows the cleaning unit 40 to drive the endless winder 7 of the drive mechanism 70.
3, the corresponding wall surface 2A is cleaned while being lifted and lowered by the winding and unreeling of the suspension rope 71.

That is, the guide ladder 20 is disposed at a predetermined position of the building 2, the cleaning unit 40 is positioned at the top of the guide ladder 20, and then lowered by the driving mechanism 70 while being not mounted on the main body 40 (not shown). Wall surface 2A by cleaning mechanism
Is sprayed on the window and wiped with the squeegee 42 for cleaning. When the cleaning unit 40 reaches the lowermost part of the guide ladder 20 and completes cleaning of the corresponding wall surface 2A, the driving unit 70 returns the cleaning unit 40 to the uppermost part,
The girder 10 and the ground carriage 30 are moved in parallel with the wall surface 2A to position the guide ladder 20 at a new cleaning portion of the wall surface 2A, and the above-described cleaning action is repeated.

Here, during the cleaning operation, the reaction force due to the pressure contact with the wall surface 2A of the squeegee 42 acts to separate the main body portion 41 of the cleaning unit 40 from the wall surface 2A. Since the mechanism 50 presses and urges the squeegee 42 against the wall surface 2A with a force larger than the reaction force due to the press-contact of the squeegee 42, the reaction force of the squeegee 42 and other disturbance factors such as wind can stably prevent separation from the wall surface 2A. The cleaning work can be performed by moving (elevating and lowering). That is, the reaction force related to the cleaning operation is applied to the engagement pressing mechanism 50.
Of the main body 41 with a greater force.
Is pressed against the wall surface 2A to prevent separation.

The urging force of the engagement pressing mechanism 50 presses and urges the main body 41 against the wall surface 2A while the guide ladder 20 is pressed.
Acts to separate the guide ladder 20 from the wall surface 2A. However, the ground bogie 30 supporting the lower end of the guide ladder 20 moves the guide ladder 20 against the urging force applied by the weight 32 having the total weight as described above. Since it is set to be immovable in the direction, it does not move away from the wall surface 2A. However, the guide ladder 20 can be bent by the urging force of the engagement pressing mechanism 50, but this bending can be absorbed by the stroke of the engagement pressing mechanism 50 (the amount of sliding movement of the base 51 with respect to the main body 41). The stroke of the engagement pressing mechanism 50 also functions to absorb the installation error of the guide ladder 20, and this allows the installation error of the guide ladder 20 to some extent, thereby facilitating the installation of the guide ladder 20.

In the window cleaning device 1 having the above-described structure, the engagement pressing mechanism 50 of the cleaning unit 40 includes the squeegee 42
Since the cleaning operation is performed while pressing the main body portion 41 against the wall surface 2A against the guide ladder 20 with an urging force larger than the pressing force against the wall surface 2A, the cleaning unit 40 is improper due to the reaction force pressing the squeegee 42 against the wall surface 2A. It does not become stable or the cleaning action is not reduced. In addition, there is no danger that the suction is released and the wall 2A is not damaged because it is not adsorbed on the wall 2A.
Since a small amount of flexure is allowed, a rigid structure is not required, so that it can be made small and lightweight, and the installation work can be easily performed. Thus, the building does not need to be permanently installed, so that its aesthetic appearance is not impaired, and it can be applied to different buildings and has versatility.

In the above-described configuration example, the present invention is applied to a window cleaning device. However, the present invention is not limited to this, and may be applied to another working device. However, it is also possible to set the horizontal direction or the like. Also, the configuration of each part can be changed as appropriate.

For example, in the above configuration, the cleaning unit 40
Is driven by an elevating mechanism 70 provided outside the cleaning unit 40. The cleaning unit 40 is provided with a drive source for moving and driving its wheels, and is configured to move by itself. You may.

The configuration of the guide support member can be changed as appropriate, and a configuration in which a rope member is used as the guide support member is shown in FIG. 9 which is a side view and FIG. 10 which is a front view. In the illustrated configuration, a pair of pulleys 26 are provided at predetermined ends in a direction parallel to the wall surface 2 </ b> A at the tip of the projecting beam 10, and a guide rope 25 having an end coupled to the ground bogie 30 is wound above the pulleys 26. The guide rope 25 is moved to the building 2
Are arranged in parallel at predetermined intervals along the wall surface 2A. 27 is a tension adjusting mechanism such as a turnbuckle.

The cleaning unit 4 similar to the above-described configuration example is provided between the guide rope 25 and the wall surface 2A thus arranged.
0 'is movably disposed along the guide rope 25. According to this, it is easy to install with a very simple configuration, can easily cope with buildings having different heights, and is excellent in versatility.

In the configuration using the rope member (guide rope 25) as the guide support member as described above, the guide rope 25 is largely bent by the reaction force for urging the main body portion 41 of the cleaning unit 40 toward the wall surface 2A. Get
This can be dealt with by using a cleaning unit 40 'having a configuration that allows a large stroke for the engagement pressing mechanism 80, as shown in a side view in FIG. 11 and a plan view in FIG.
In the figure, parts having the same functions as those of the above-described configuration example are denoted by the same reference numerals, and description thereof will be omitted.

The engagement pressing mechanism 8 of the illustrated cleaning unit 40 '
Reference numeral 0 denotes a structure in which a base 81 having an engagement mechanism 60 is movably supported by a telescopic link mechanism 82 as a telescopic mechanism formed by combining a plurality of link bars 82A in a pantograph shape.

The telescopic link mechanism 82 is pivotally connected to the main body 41 at a pivot point 82B at the lower end thereof, and the distal end of the link bar 82A at the upper end is disposed between the front and rear bent edges of the base 81. It is provided so as to be pivotally attached to a slide piece 84 externally slidably movable on a guide shaft 83.

The guide shaft 83 is provided with springs 85 as urging means between the fixed portions of the guide shaft 83 to the base 81 and the slide piece 84.

The engagement pressing mechanism 80 constructed as described above
The spring 85 presses and biases the link bar 82A of the telescopic link mechanism 82 toward the side that reduces the end interval, thereby biasing the supporting base 81 to the side away from the main body 41. Therefore, a large moving stroke can be obtained.

[0042]

As described above, according to the building wall working apparatus of the present invention, the guide support member disposed near the wall of the building substantially along the wall and the work on the wall. And a moving drive means for moving and driving the working device. The working device is provided with an engagement mechanism for engaging with the guide support member from its main body via a telescopic mechanism. The work mechanism is biased in a direction away from the main body by the biasing means, and the engagement mechanism is engaged with the guide support member to bias the working device against the wall surface of the building with the biasing force of the biasing means. The reaction force is received by the guide support member, the moving drive means moves on the wall along the guide support member, and the work device is configured to work on the wall. Guides the main body of the working device This pressing force acts on the holding member against the wall surface, and this pressing force opposes the reaction force generated by the operation of the working device, which causes the main body to be separated from the wall surface. Regardless of disturbance factors such as wind, the main body can be stably moved (elevated) without separating from the wall surface to perform work. Displacement such as bending of the guide support member and position error of the guide support member caused by the urging force of the acting urging means can be absorbed by the expansion and contraction mechanism, so that high accuracy is not required for installation of the guide support member, and the installation becomes easy. Things. Thus, the building does not need to be permanently installed, so that its aesthetic appearance is not impaired, and it can be applied to different buildings and has versatility.

Further, since the guide supporting member is a structure and includes a guide member extending in the moving direction of the working device, deformation due to the urging force of the urging means of the working device is suppressed to be small. For this reason, the stroke of the expansion and contraction mechanism can be reduced to make it smaller and lighter.

Further, since the guide support member is a rope member arranged in the moving direction of the working device, it can be easily installed with an extremely simple configuration, and can easily cope with buildings having different heights. It is excellent in versatility.

Further, the moving drive means is configured to move and drive the working device by winding and rewinding a drive rope member coupled to the working device, so that the working device is provided with a driving mechanism. Since there is no need, the working device can be made lightweight and the driving force can be small, and the whole can be made compact.

Further, the working device is a window cleaning device that cleans the squeegee by pressing the squeegee against the window on the wall surface, so that the working device resists a reaction force for separating the main body portion caused by the squeegee pressure contact from the wall surface. Then, the urging force of the urging means presses the main body of the window cleaning device against the wall surface, so that a stable cleaning operation can be performed without separating from the wall surface.

[Brief description of the drawings]

FIG. 1 is a side view showing a conceptual configuration of a window cleaning device which is one configuration example of a building wall working device according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is an enlarged side view of the ground bogie.

FIG. 4 is a view taken in the direction of the arrow A in FIG. 3;

FIG. 5 is a partial cross-sectional front view of a main body excluding an engagement pressing mechanism.

FIG. 6 is a conceptual vertical sectional view of a main body corresponding to a section taken along line BB of FIG. 5;

FIG. 7 is an enlarged side view of the cleaning unit.

FIG. 8 is an enlarged plan view of the cleaning unit.

FIG. 9 is a side view of a configuration using a rope member as a guide support member.

FIG. 10 is a front view of FIG. 9;

FIG. 11 is a side view of a cleaning unit having another configuration example.

FIG. 12 is a front view of FIG. 11;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 window cleaning device (wall work device) 20 guide ladder (guide support member) 21 guide bar (guide member) 25 guide rope (guide support member, rope member) 40, 40 ′ cleaning unit (work device) 41 main body 50 Combination pressing mechanism (expansion mechanism) 53, 54 Spring (biasing means) 60 Engagement mechanism 70 Drive mechanism (moving driving means) 71 Suspension rope (drive rope member) 82 Telescopic link mechanism (expansion mechanism) 85 Spring (biasing means) )

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E003 AA02 AB02 AC03 CA01 CB01 CC01 2E176 AA02 AA19 DD64 3B201 AA31 AB51 BA03 BA22 BA33 3F301 AA00 BA15 DD08 DD12 DD14 DD15

Claims (5)

[Claims] 1. A guide support member disposed near a wall surface of a building substantially along the wall surface, a working device having a working means for performing work on the wall surface, and a movement driving means for moving and driving the working device. The working device is provided with an engagement mechanism that engages with the guide support member, which is biased in a direction away from the main body by a biasing means via a telescopic mechanism from the main body. The engagement mechanism is engaged with the guide support member, the urging force of the urging means presses and biases the working device against the wall of the building, and receives the reaction force of the guide support member with the guide support member, A wall working device for a building, wherein the moving driving means is configured to move on the wall along the guide supporting member and work on the wall with the working device. 2. The wall of a building according to claim 1, wherein the guide support member is a structure, and includes a guide member extending in a moving direction of the working device. Working equipment. 3. The building wall working apparatus according to claim 1, wherein the guide supporting member is a rope member arranged in a moving direction of the working apparatus. 4. The apparatus according to claim 1, wherein the movement driving means is configured to move and drive the work device by winding and rewinding a drive rope member coupled to the work device. 4. The wall surface working device for a building according to claim 2, 2 or 3. 5. The wall working device according to claim 1, wherein the working device is a window cleaning device for cleaning by pressing a squeegee against a window on the wall surface.