JPH1066662A - Automatic cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic cleaning device capable of performing cleaning only by one person without the need of making a worker climb up to a high place by attaching a bracket provided with a wipe-off blade and a detergent application member to the tip of an extendable/contractible boom provided with a driving means. SOLUTION: A base 5 is pivotally supported by a rotary shaft 4 horizontally disposed to a truck 2 and the driving means 8 incorporating a hydraulic mechanism and a control circuit, etc., is arranged. The extendable/contractible boom 9 is vertically erected on the driving means 8 and the outermost cylinder is pivotally supported by a falling prevention leg 10. To the tip of the extendable/ contractible boom 9, the detergent application member 21 and the wipe-off blade 22 are attached through the bracket 20. At the time of use, falling is prevented by opening the falling prevention leg 10 and the extendable/ contractible boom 9 is extended to a required height by operating the driving means 8. Then, after the base 5 is inclined and the detergent application member 20 and the wipe-off blade 22 are brought into contact with a glass window, the extendable/contractible boom 9 is contracted, the wipe-off blade 22 is lowered while being along the glass window, and the glass window is cleaned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic cleaning apparatus for cleaning a substantially vertical surface to be cleaned, for example, a tall glass window used for an exterior surface of a showroom.

[0002]

2. Description of the Related Art For example, when cleaning a tall glass window or a tall glass door used for an exterior of a showroom, an operator needs to use a glass to clean a part that cannot be reached from below. Ladder was set up on windows etc. for cleaning.

[0003] Further, the angle of inclination of the ladder to be leaned is made steep so that the worker's hand can reach a glass window or the like irrespective of the position of the worker who climbed the ladder. I was trying to complete the work. For example, when a ladder having a height of 5 meters is leaned at an angle of about 80 degrees, the distance between the ladder and the glass window is about 50 cm at a position 2 meters from the bottom.

[0004]

When the angle of inclination of the ladder becomes steep, the contact pressure between the ladder and the glass window or the like decreases, so that the friction between them decreases. Therefore, if the operator moves the center of gravity when climbing the upper part of the ladder, the state of the ladder becomes unstable and the ladder may fall. In particular, when the worker lifts the ladder away from the glass window, etc. when cleaning the part where the tip of the ladder is in contact with the glass window, the state of the ladder becomes extremely unstable, which is quite dangerous. Is accompanied.

[0005] If a worker who supports the ladder is hired to prevent the ladder from falling over, this labor cost is included in the cleaning cost, which increases the cleaning cost.

An object of the present invention is to provide an automatic cleaning apparatus which solves the above-mentioned problems and realizes a low-cost and efficient cleaning operation.

[0007]

SUMMARY OF THE INVENTION An automatic apparatus according to the present invention comprises a carriage, a base horizontally supported by the carriage, a telescopic boom vertically provided on the base, and a telescopic boom. A driving means for driving the telescopic boom, a bracket attached to the tip of the telescopic boom, a detergent application member which is held by the bracket and extends in a substantially horizontal direction and is capable of applying a detergent to a surface to be cleaned, and an upper part of the detergent application member A cleaning blade that is held by the bracket so as to be disposed in parallel to the cleaning target surface and that can wipe off dirt and detergent on the surface to be cleaned, and a detergent supply unit that supplies a detergent solution to the detergent application member. .

[0008] The automatic cleaning device may further include a tilting unit that biases the bracket so as to tilt a tangent line between the detergent application member and the wiping blade and the surface to be cleaned with respect to a horizontal direction; A universal joint may be provided between the telescopic boom and uniformly contacting the detergent application member and the wiping blade with the surface to be cleaned.

Further, it is preferable that the bracket is provided with a detergent collecting means for collecting a detergent dropped from the detergent applying member.

[0010]

FIG. 1 is an external perspective view of an automatic cleaning apparatus 1 according to one embodiment of the present invention. In the automatic cleaning device 1, a base 5 is pivotally supported by a rotating shaft 4 horizontally arranged between a pair of support walls 3 provided on a cart 2. Outriggers 6 and 7 for restricting the inclination angle of the base are provided at two locations on each of a pair of sides of the base opposed to each other with the rotation axis interposed therebetween. The base 5 is provided with a driving mechanism 8 including a hydraulic mechanism (not shown), an air compressor (not shown), and a control circuit (not shown) for these components. In FIG. 1, the outrigger 7 is not shown because it is hidden behind the driving means 8.

A pair of overturn prevention legs 10 for overturn prevention are pivotally supported on the outermost cylinder of a telescopic boom 9 of a telescopic type which is vertically provided on the driving means 8, and a bracket is provided at the tip of the boom. A detergent application member 21 and a wiping blade 22 are attached via a reference numeral 20. The bracket 20 includes a holding portion 23 for the detergent application member 21 and the wiping blade 22,
A handle part 25 attached to the clamp part 24 at the tip of the telescopic boom 9, a coil spring 2 interposed between the holding part 23 and the handle part 25 and functioning as a universal joint
6, a tilting means for tilting the detergent application member 21 and the wiping blade 22 at a predetermined angle with respect to the horizontal direction, including a tension spring 27 and an angle regulating wire 28 connected between the holding portion 23 and the handle portion 25. 29.

The trolley 2 includes a detergent tank 30 for storing a detergent to be supplied to the detergent application member 21, a battery 31 for supplying power to a traveling motor (not shown) of the trolley 2, and a small generator 32. Have been. This generator 32
For example, it is used as a power source in outdoor work where power cannot be obtained from an outlet.

FIG. 2 is a schematic side view showing a state of use of the automatic cleaning device 1. The cart 2 is separated from the glass window 40 by about 1 meter, and is positioned so that the rotation axis 4 is substantially parallel to the glass window 40. Next, after the pair of fall prevention legs 10 are opened to prevent the telescopic boom 9 from falling, the driving means 8 is operated to extend the telescopic boom 9 to a required height by, for example, hydraulic pressure. In this case, each boom of the telescopic boom 9 has at least one oil seal at the upper end,
It has a stopper at the lower end, the outer boom is configured as a cylinder, and the inner boom is configured as a multiple piston that functions as a piston.

After this, the outrigger 7 on the glass window 40 side
By operating a hydraulic cylinder (not shown) for contracting the base 5 and tilting the base 5, the telescopic boom 9 is moved down to the glass window 40 side as shown by a dashed line, and the detergent application member 21 and the wiping blade 22 are moved to the glass window. Touch 40. This telescopic boom 9 is composed of nine steps of arms with a height of about 1.6 meters per step, and can perform cleaning up to a height of about 15 meters.

Next, the hydraulic pressure in the telescopic boom 9 is reduced by the driving means 8 to contract the telescopic boom 9 and the hydraulic cylinder for tilting the base 5 is controlled, so that the detergent application member 21 and the wiping blade 22 are moved. The glass window 40 is cleaned by moving it down to the position shown by the solid line along the glass window 40. When the telescopic boom 9 is in the most contracted state, a range of about 2 meters or less from the bottom of the glass window 40 is left behind, but this range is manually cleaned by an operator.

The fall prevention leg 10 of the telescopic boom 9 is configured such that the position of the ground contact portion 41 is shifted according to the inclination angle of the telescopic boom 9 as shown in the figure. Therefore, the grounding part 41
And the carriage 2 are connected by a chain or the like (not shown) of a predetermined length so that the telescopic boom 9 does not fall to the side opposite to the glass window 40.

FIG. 3 is an external perspective view of the detergent application member 21, the wiping blade 22, and the bracket 20. The length of the detergent application member 21 and the wiping blade 22 is about 1 meter in the longitudinal direction. However, in this figure, the respective lengths are slightly reduced due to space limitations.

The wiping blade 22 is made of neoprene rubber or the like which is hardly attacked by alkali or acid and has excellent abrasion resistance, and its end is fitted to a U-shaped channel member 42. On the lower surface of the wiping blade 22, a detergent application member 21 formed of a sponge or the like excellent in water absorption is attached. A detergent distribution pipe 43 is arranged between the detergent application member 21 and the wiping blade 22 so that the detergent application member 21 contains the detergent. The detergent distribution pipe 43 has a length substantially equal to that of the detergent application member 21 and is formed with holes (not shown) for discharging the detergent at appropriate intervals. Tubes 44 are connected.

Wiping blade 22 and detergent application member 21
And the like are attached to the clamp portion 24 via a channel member 42. The clamp 24 is coupled to the handle 25 via a coil spring 26. The coil spring 26 is connected to the wiping blade 22
In addition, it functions as a universal joint for causing the detergent application member 21 to always follow the surface to be cleaned. Further, a sensor (not shown) detects a displacement amount of the coil spring 26 which is displaced in accordance with a pressing force of the wiping blade 22 and the detergent application member 21 to the surface to be cleaned, and uses a signal output from the sensor. The hydraulic cylinder for tilting the base 5 is controlled.

The channel member 42 is provided with first and second locking portions 45 and 46 on the left and right, respectively, and the handle portion 25 has third and fourth locking portions 47 and 48 on the left and right, respectively. Is provided. Both ends of the tension spring 27 are locked to the first locking portion 45 and the third locking portion 47, respectively, and an angle regulating wire is connected to the second locking portion 46 and the fourth locking portion 48. 28 are locked at both ends. With this configuration, the wiping blade 22 is inclined at a predetermined angle from the horizontal direction during movement.

FIG. 4A is a front view of a main part of an automatic cleaning apparatus according to another embodiment further including a detergent collecting means 49 for collecting the detergent dropped from the detergent applying member 21.
In this embodiment, the fifth and sixth locking portions 50 and 51 provided at both ends of the channel member 42 for holding the wiping blade 22 are provided with the detergent collecting means 49 swinging through a pair of hanging arms 52. It is suspended freely.

As shown in FIG. 4B, which is a sectional view at the center of FIG. 4A, the detergent collecting means 49 includes a cylindrical sponge-made detergent absorbing portion 54 and a portion below the detergent absorbing portion 54. And a detergent collecting gutter 55 suspended swingably so as to be always located at a position. This detergent collection gutter 55 is
It is inclined from both ends toward the center, and the detergent absorbing portion 5
The detergent dripping from the surface of the detergent absorbing portion 54 when 4 becomes saturated is collected at the center. The detergent collected at the center of the detergent collecting gutter 44 is collected via a collecting tube 56.

FIG. 4C shows the state of use in FIG. 4B.
It is sectional drawing similar to. The diameter of the detergent absorbing portion 54 has a diameter such that the wiping blade 22 and the detergent application member 21 are in contact with the glass window 40 in a state of being in contact with the glass window 40.
Therefore, when the wiping blade 22 and the detergent application member 21 are moved along the glass window 40, the detergent absorbing portion 54 rotates and reliably absorbs the detergent dropped along the glass window 40 from the detergent application member 21. can do.

FIG. 5 is a partial external view of the telescopic boom 9. A tube guide 57 is provided at the tip of each arm. These tube guides 57 have a guide portion formed in a coil shape, and are provided with a tube 4 for detergent supply.
4 and the collection tube 56 can be passed through the guide part even in the middle of them.

FIG. 6 shows a telescopic boom 60 according to another embodiment.
FIG. The telescopic boom 60 expands and contracts a three-stage ladder-shaped boom with a wire 74. A pair of columns of the first stage boom 61 has a first guide member 62 on each upper part and a first guide member 62 on each side surface.
Guide groove 63 is provided. Second stage boom 6
The second pair of columns has a second guide groove 65 guided by the first guide member 62 on each side, and a second guide member 66 guided by the first guide groove 63 is provided on each side. , And a third guide member 67 is provided on each upper part. A third guide groove 69 guided by the third guide member 67 is provided on each side surface of the pair of columns of the third-stage boom 68, and a fourth guide groove 69 guided by the second guide groove 65 is provided. A guide member 70 is provided at each lower part.

A first pulley 71 is provided at the upper end of the first-stage boom 61, and a second pulley 71 is provided at the lower end of the second-stage boom 64.
And a third pulley 73 at the upper end.
A wire 74 is connected to the lower end of the third-stage boom 68 via these pulleys 71, 72, 73. Therefore,
When the wire 74 is wound by a driving mechanism (not shown), the telescopic boom 60 is extended, and when the wire 74 is extended, the telescopic boom 60 is contracted. In addition, in this figure, the fall prevention leg, the detergent application member, and the wiping blade are not shown. Also, the telescopic boom 60 can be used as a ladder, and in this case, a lock mechanism (not shown) for fixing the booms to each other is operated.

Although the embodiments of the present invention have been described above, the automatic cleaning apparatus according to the present invention can have various configurations. In the embodiment, one set of the wiping blade and the detergent application member is used. However, it is also possible to increase the wiping width by using a plurality of sets. For example, using a bracket that can hold a plurality of sets of wiping blades and a detergent application member,
When a plurality of sets of wiping blades and a detergent application member are held by a nested bracket which can be extended and contracted in the horizontal direction, the wiping width can be adjusted arbitrarily.

Although various methods can be used for supplying the detergent from the detergent tank to the detergent application member, a method using air pressure is preferable for effectively permeating the detergent into the detergent application member. For example, if the detergent is delivered by supplying pressurized air from a compressor to the detergent tank, the detergent can be reliably supplied to the detergent application member even if cavitation occurs in the detergent.

Further, by controlling the supply amount of the detergent, it is possible to prevent the detergent from dripping from the detergent application member. For example, a sensor that detects a water droplet of the detergent generated on the surface of the detergent application member or the surface to be cleaned is used. When the sensor detects the water droplet, the amount of the supplied detergent is suppressed to prevent the detergent from dripping. If an ionic detergent is used, a sensor that detects the resistance value of the detergent application member is used to control the supply amount of the detergent based on the resistance value that changes according to the amount of the detergent contained in the detergent application member. You can also.

[0030]

According to the automatic cleaning apparatus of the present invention, it is possible to clean the almost vertical portion of the surface to be cleaned by the expansion and contraction drive of the expansion and contraction boom. Moreover, cleaning can be performed by only one worker. Therefore, the cleaning operation can be performed safely and quickly, and the cleaning cost can be significantly reduced.

Further, the apparatus provided with the inclination means for urging the bracket to incline the tangent line between the detergent application member and the wiping blade and the surface to be cleaned with respect to the horizontal direction, the dirt to be wiped off by the wiping blade. In addition, since the detergent is collected at one end of the wiping blade, when the cleaning area is slightly overlapped when performing the cleaning operation, the dirt and the detergent are not wiped off.

Further, the apparatus provided with the detergent collecting means for collecting the detergent dropped from the detergent applying member can finish the surface to be cleaned uniformly without the detergent flowing down the surface to be cleaned. In addition, since the detergent does not scatter on the floor, there is no need for a pre-process such as laying a protective sheet on the floor or a post-process for wiping off the detergent adhered to the floor, thereby reducing work time. .

[Brief description of the drawings]

FIG. 1 is an external perspective view of an automatic cleaning device according to an embodiment of the present invention.

FIG. 2 is a schematic side view showing a state of use of the automatic cleaning device shown in FIG.

3 is an external perspective view of a detergent application member, a wiping blade, and a bracket used in the automatic cleaning device shown in FIG.

FIG. 4A is a front view of a main part of an automatic cleaning device according to another embodiment. (B) It is sectional drawing of the center part of FIG.4 (a). (C) It is sectional drawing similar to FIG.4 (b) which shows a use state.

FIG. 5 is a partial external view of a telescopic boom of a telescopic type.

FIG. 6 is an external view of a ladder-type telescopic boom.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic cleaning device 2 Dolly 9 Telescopic boom 21 Detergent application member 22 Wiping blade

Claims (3)

[Claims] 1. A trolley, a base horizontally supported by the trolley, a telescopic boom vertically provided on the base, a driving means for driving the telescopic boom to expand and contract, and a tip of the telescopic boom A detergent application member which is held by the bracket, extends substantially in the horizontal direction, and is capable of applying a detergent to a surface to be cleaned, and is held by the bracket so as to be disposed in parallel with an upper portion of the detergent application member. An automatic cleaning device, comprising: a wiping blade capable of wiping dirt and a detergent on the surface to be cleaned; and a detergent supply means for supplying a detergent liquid to the detergent application member. 2. A tilting means for urging the bracket so as to tilt a tangent line between the detergent application member and the wiping blade and the surface to be cleaned with respect to a horizontal direction, and between the bracket and the telescopic boom. 2. The automatic cleaning device according to claim 1, further comprising: a universal joint interposed between the cleaning member and the cleaning member so as to uniformly contact the detergent application member and the wiping blade with the surface to be cleaned. 3. The automatic cleaning apparatus according to claim 1, wherein said bracket includes a detergent collecting means for collecting detergent dropped from said detergent applying member.