KR20120111537A - Apparatus for cleaning surface of building - Google Patents

Abstract

PURPOSE: A building wall cleaning apparatus using a relative moving structure for coping with a raised portion on the outer wall surface of a building is provided to prevent unwanted stop of work by continuously descending along the outer wall of a building even when meeting a raised portion. CONSTITUTION: A building wall cleaning apparatus comprises a body(20) which vertically descends, facing the outer wall of a building, a wiper member(10) which is provided on the front side of the body, facing the outer wall of the building, and contacts the wall surface according to the movement of the body to rake up materials attached to the water surface, and relative movement assemblies(30) which are provided to face each other from both sides of the body and allow relative movement between the wiper member and the body.

Description

Apparatus for Cleaning Surface of Building} that works in response to protrusions on building exterior walls using a relative movement structure

The present invention relates to an apparatus for cleaning the outer wall surface of a building, and specifically, while descending along the outer wall surface of a building such as a building, spraying and wiping and cleaning the outer wall surface such as a window or the outer wall surface of the building, the outer wall The present invention relates to a device capable of preventing re-contamination due to a stop of the cleaning device and cleaning the outer wall surface of a building at high speed by preventing sudden fall of the cleaning device even if a protruding part exists on the surface.

In recent years, buildings such as buildings are often constructed with high floors having a very high number of floors, and the outer walls are often made of glass. As such a cleaning apparatus for cleaning outer wall surfaces such as glass and outer surfaces in buildings including high-rise buildings, automated cleaning apparatuses having various structures have been proposed.

In general, the cleaning device of the building exterior wall surface according to the prior art (hereinafter, abbreviated as "cleaning device") moves from top to bottom along the exterior wall surface of the building by cables or the like hanging down from the roof of the building. It works by spraying water and scraping off the water on the outer wall with a wiper member.

If the outer wall of the building is made of a completely flat surface, it is possible to clean the outer wall of the building only with the conventional cleaning device as described above, but most of the outer wall of the building has a concave-convex form that protrudes or concavely recessed. Due to this problem occurs that the cleaning is not done completely.

1 and 2 are schematic side views showing, in stages, a state in which a conventional cleaning apparatus cleans the glass window 100 of a building, respectively. As shown in FIG. 1, the wiper member 10 of the cleaning device moves downward while scratching the surface of the glass window 100 of the building, and the position “2” is shown. Likewise, if the cleaning device is continuously lowered even after the wiper member 10 is caught on the protrusion 110 on the outer wall of the building, the wiper member 10 made of rubber or synthetic resin and having elasticity is shown in the dotted line "position". (3) "while being deformed as the state of" 3 ", the protruding over the projecting portion is returned to the original shape again, the state as shown by" position (4) ". However, when the shape of the wiper member 10 is returned to its original shape as it passes through the protruding portion as described above, water or water droplets, which are buried in the wiper member 10 due to the impact, have already been cleaned by the wiper member 10. The glass is splashed into the window, which causes the cleaning window to be dirty again. In addition, the point where the shape of the wiper member 10 is returned to its original shape and touches the surface of the glass window 100 is a position away from the protrusion 110 by a predetermined distance (the distance indicated by reference numeral b in FIG. 1), and Accordingly, a certain distance (distance indicated by reference numeral b in FIG. 1) immediately below the protrusion 110 may cause a problem in that cleaning is not performed.

As an alternative to solve this problem, as shown in FIG. 2, the wiper member 10 is retracted to the outdoor side before the wiper member 10 touches the protrusion 110, so that the wiper member 10 is not deformed. After passing through the protrusion 110, and after passing through the protrusion 110, the wiper member 10 may move forward to reach the glass window 100. However, in such a case, the wiper member 10 is retracted in advance before reaching the protrusion 110 so that the wiper member 10 does not come into contact with the glass window 100. Therefore, the wiper member 10 has a predetermined distance above the protrusion 110 (denoted by a in FIG. 2). Distance) is left uncleaned by the wiper member 10. In addition, when the wiper member 10 is advanced again past the protrusion 110 to come in contact with the glass window 100, as described above, a certain distance immediately below the protrusion 110 (the distance indicated by b in FIG. 2). The problem arises that the part is not cleaned.

Although the wiper member 10 may be retracted after the wiper member 10 touches the protrusion 110, in this case, the wiper member 10 may not move downward in the state where the wiper member 10 touches the protrusion 110. You must stop it. This is because the time for the wiper member 10 to retreat should be secured. However, stopping while the cleaning device is moving downward causes another problem. The cleaning device is provided with cleaning water and power, and includes a case forming the exterior of the cleaning device. Therefore, the cleaning device has a considerable weight, and the heavy-chain cleaning device is suspended from a cable hanging from the roof of a building. to be. Therefore, if the wiper member 10 meets the protrusion and stops the movement of the cleaning device while the cleaning device moves downward, an impact due to the stop of the heavy cleaning device is generated, and thus the wiper member 10 also has an impact. The wiper member 10 is moved irregularly, and eventually, the water remaining on the wiper member 10 is splashed onto the upper glass window which has been cleaned, thereby causing the phenomenon of becoming dirty again.

In addition, after the wiper member 10 passes through the protrusion 110, the wiper member 10 needs to move forward toward the glass window, so the cleaning device must stop again immediately after the wiper member 10 passes through the protrusion 110. Accordingly, the water splash phenomenon occurs upward from the wiper member 10 as described above, and there is a problem of re-contamination of the already cleaned glass window. In addition, if the cleaning device is lowered and then stops every time it meets the protrusion 110, and repeats the operation of lowering again, there is also a problem that the work speed is lowered and economic efficiency is lowered.

The present invention was developed in order to solve the problems of the prior art as described above, specifically, by installing a cleaning device on the outside of a building, such as a building using a cable or the like hanging down on the roof while moving the cleaning device downwards In cleaning the outer wall surface such as the outer surface, even if a protrusion is present on the outer wall surface of the building, the upper outer wall surface which has been cleaned is water generated due to the splash caused by the deformation of the wiper member or the impact caused by the stop of the cleaning device. It has been developed to prevent the phenomenon of contamination due to frying again, and to prevent a decrease in work speed and economic efficiency due to work stoppage caused by the presence of protrusions.

In order to achieve the above object, in the present invention, the main body which faces the outer wall of the building facing the outer wall of the building and descends vertically, and is provided on the front of the main body facing the outer wall surface, the building as the main body moves A building exterior wall cleaning apparatus comprising a wiper member that contacts the outer wall surface of the building and scrapes off the material on the surface, wherein the relative movement assembly allowing the wiper member and the main body to move relative to each other transversely to the front of the main body. It is provided to face each other in both directions, the relative movement assembly, a pair of vertical guide members are arranged vertically and arranged side by side in the direction of the outer wall of the building and coupled to the vertical guide member, respectively, vertical As long as its position is fixed to the guide member or allows relative movement with the vertical guide member A pair of movable members and a horizontal guide member connecting the pair of movable members to each other and disposed between the pair of vertical guide members in a building outer wall direction; A rearward connection member is provided at the rear of the wiper member; A sensor for detecting a protrusion protruding from the outer wall of the building is provided; An end of the connecting member is provided with a horizontal movable body, and the horizontal movable body is coupled to the horizontal guide member so as to be movable in the longitudinal direction of the horizontal guide member, so that the wiper member is advanced toward the outer wall surface of the building or the outer wall. Can retract from face; The movable member is locked to the vertical guide member so as not to be movable relative to each other or to be movable relative to each other, so that the vertical guide member and the movable member are locked to each other at a portion where no protrusion is present. When descending together in the cleaning, the outer wall surface by the wiper member, when the wiper member is noticed that the protrusion is in contact with the projection, the locked state between the movable member and the vertical guide member is released to allow relative movement, the movable member and the wiper member The main body and the vertical guide member continue to descend at the same speed without falling, and at the same time the horizontal movable member retracts from the horizontal guide member so that the wiper member retreats; When the wiper member is retracted so as not to touch the protrusion, the movable member accelerates and descends in the direction in which the vertical guide member is moved; After the wiper member descends and passes the protruding part, the main body and the vertical guide member continue to descend at the same speed, and the vertical guide member descends relative to the movable member, so that the horizontal member moves forward from the horizontal guide member. As the member moves forward, the front end of the wiper member comes into contact with the outer wall surface; In the state where the wiper member is in contact with the outer wall surface, the movable member is lowered with the movement of the vertical guide member; The present invention provides a building exterior wall cleaning apparatus, wherein the main body can be uniformly lowered without stopping even when the protrusion is present, so that the outer wall of the upper portion of the protrusion can be prevented from being contaminated again due to the presence of the protrusion.

 In the present invention as described above, the first guide portion is formed long in the vertical guide member; The movable member coupled to the vertical guide member includes a first pinion engaged with the first rack portion and a first driving motor for rotating the first pinion to rotate the first member. Relative movement may be achieved by combining the crank and the first pinion.

In the present invention, the second guide portion is formed long in the horizontal guide member; In the horizontal movable body coupled to the horizontal guide member, a second pinion engaged with the second rack portion provided in the horizontal guide member and a second driving motor for rotating the second pinion are provided. By the operation of the second pinion and the horizontal movable body may be configured to retreat backward or forward in the horizontal guide member.

According to the cleaning apparatus according to the present invention, when the wiper member descends while cleaning the outer wall of the building and meets the protrusion, the wiper member retreats, passes through the protrusion, and then touches the outer wall to lower the cleaning, while the main body is wiper. Regardless of this retraction operation of the member, it continues to descend at constant velocity. Therefore, the stop shock due to the sudden stop of the main body due to the protrusion is not applied to the wiper member, and the stop impact can prevent the water from splashing from the wiper member to the upper windshield, and the contamination of the cleaned part again occurs. The effect that there is is exerted.

In addition, in the present invention, since the cleaning device is lowered and continues to descend without stopping even if it meets the protrusion, it is possible to prevent a decrease in the working speed due to the stopping of work, and the efficiency of the work is increased to improve the economic efficiency. .

1 and 2 are each a schematic side view showing a state in which the conventional cleaning device to clean the window of the building step by step.
Figure 3a and Figure 3b is a schematic perspective view showing different views of the cleaning device of the outer wall of the building according to the present invention, respectively.
4 is a schematic enlarged view of a portion A of FIG. 3A.
5 to 10 are schematic side cross-sectional views for explaining a process of passing through the protrusion formed on the outer wall surface of the building according to the present invention, respectively.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

3A and 3B are schematic perspective views showing different angles of view of the cleaning device 1 (hereinafter, abbreviated as "cleaning device 1") of the building exterior wall surface according to the present invention, respectively, 4 is a schematic enlarged view of a portion A of FIG. 3A. 5 to 10 are schematic cross-sectional views for explaining a process of the cleaning device 1 according to the present invention passing through the protrusion formed on the outer wall of the building, respectively, the lowering step of the cleaning device 1 in the line BB of FIG. It is shown as a schematic cross-sectional view of the.

As shown in the figure, the cleaning device 1 according to the present invention, the main body 20 is lowered vertically facing the outer wall surface of the building, and the main body 20 is provided on the front of the main body 20 is moved As such, it comprises a wiper member 10 in contact with the outer wall surface of the building to scrape the material on the surface. The wiper member 10 may be made of rubber or synthetic resin. For convenience, the present invention will be described taking the glass window 100 as an example of the outer wall surface of the building.

In the cleaning device 1, the main body 20 moves downward with the front end of the wiper member 10 in contact with the outer wall surface of the building, whereby the wiper member 10 has the outer wall surface of the building. The foreign substances on the surface are scraped downward to clean the outer wall. The configuration for lowering the main body 20 may be made in various forms, which may use a known technique. For example, a pair of cables are laid down from the roof of the building, and the cables are connected to both lateral sides of the main body 20 to lower the cables so that the main body 20 descends at a constant speed. However, the configuration for lowering the main body 20 is not limited to this example, it is possible to use a variety of forms. As such, the configuration of elevating the main body 20 itself does not correspond to the essential gist of the present invention. For convenience, the configuration for elevating the main body 20 itself is omitted. .

In the main body 20, water is injected into the glass window, for which a tank (not shown) containing water for spraying may be embedded in the main body 20. A nozzle unit 25 for injecting water into the glass window 100 is disposed below the wiper member 10. In the embodiment shown in the drawing, the nozzle unit 25 protrudes from the main body 20. Although made of a member in the form, the nozzle portion 25 may be made in the shape of a nozzle hole formed in the main body 20 on one side of the main body 20 facing the glass window.

On the other hand, the body 20 is provided with a relative moving assembly 30 to allow the wiper member 10 and the main body 20 to move relative to each other, as will be described later. Specifically, the relative movement assembly 30 is provided on both sides of the main body 20 in the lateral direction, respectively, and the relative movement of the wiper member 10 with respect to the main body 20 is achieved through the relative movement assembly 30. It is coupled to the body 20 to enable. In the embodiment shown in the figure, the main body 20 and the relative movement assembly 30 is shown as a separate member, the main body 20 is divided in the width direction, may be integrated with the relative movement assembly 30, respectively. . In the drawing, the member number 38 is a case member 38 for protecting the vertical guide member 31, the movable member 32, the horizontal guide member 33, and the horizontal movable member 111, which will be described later. Substantially integrated with the body 20, the water tank or the like may be disposed in the case member 38.

Specifically, the relative movable assembly 30 is coupled to the pair of vertical guide member 31 and the vertical guide member 31 which are arranged vertically, but are arranged side by side in the direction of the glass window 100. If necessary, a pair of moving members 32 fixed to the vertical guide member 31 or allowing relative movement with the vertical guide member 31 and the pair of moving members 32. Are connected to each other and comprises a horizontal guide member 33 disposed between the pair of vertical guide member 31 in the direction of the glass window (100).

The wiper member 10 is provided at an upper position of the nozzle unit 25 in front of the main body 20, and the connection member 11 extends behind the wiper member 10. The end of the connecting member 11 is directed in the horizontal direction of the main body 20, the end of the connecting member 11, the horizontal of the relative movable assembly 30 provided on both sides of the transverse direction of the main body 20, respectively The guide member 33 is coupled to be movable in the longitudinal direction of the horizontal guide member 33. That is, the end of the connection member 11 is provided with a horizontal movable member 111, the horizontal movable member 111 is movably coupled to the horizontal guide member 33. Therefore, as the horizontal movable member 111 moves to move toward or away from the glass window 100 along the horizontal guide member 33, the wiper member 10 coupled to the connecting member 11 moves toward the glass window 100. Forward or backward from it. The connecting member 11 includes a plurality of extension rods 1101 extending rearward of the wiper member 10, as illustrated in FIGS. 3A, 3B and 4, and transverse to the body 20 at the ends of the extension rods. Consisting of a horizontal rod 1102 coupled in a state arranged in a direction, the horizontal movable member 111 may be provided at both ends of the horizontal rod 1102, the extension rod 1101 is a wiper member ( 10 is provided at the rear of the 10, each of the extension rods are bent in the direction of the relative movement assembly 30, the horizontal movable body 111 may be provided at the bent end.

As previously described in the "Background Art", when the wiper member 10 of the cleaning device 1 moves down while scratching the surface of the glass window 100 of the building and encounters a protrusion on the outer wall surface of the building, the upper cleaning is already performed. Re-contamination of the windshield can be completed, the present invention blocks the occurrence of this problem through the following configuration.

Specifically, in the cleaning apparatus 1 of the present invention, when the wiper member 10 touches the protruding portion, the wiper member 10 stops the lowering thereof, but the main body 20 has the configuration to continue lowering without stopping. . To this end, the present invention is provided with a “protrusion detection sensor (not shown)” for detecting whether the wiper member 10 is in contact with the protrusion 110. The "protrusion sensor" may be made of a sensor of the type to recognize the presence of the protrusion 110 by sending a signal in the downward direction of the wiper member 10 to recognize the signal reflected from the protrusion 110. It is attached to the lower surface of the wiper member 10 and is located directly between the protrusion 110 and the wiper member 10 to recognize the contact when the wiper member 10 is in contact with the protrusion 110, the protrusion ( It may be configured in a form that recognizes the existence of 110.

In the configuration of the present invention as described above, in the "initial normal position", the moving member 32 is respectively coupled to the pair of vertical guide member 31 is locked so that relative movement with respect to the vertical guide member 31 is not possible. You are in a state of being. That is, the movable member 32 and the vertical guide member 31 are meshed so that their positions are fixed with respect to each other. Therefore, when the vertical guide member 31 is lowered by the lowering of the main body 20, the movable member 32 and the wiper member 10 coupled thereto are also lowered together at the same speed.

By the way, when the moving member 32 will not be lowered due to the protrusion 110 or the like, as described later, the "first relative movement start signal" is issued, the moving member 32 and the vertical guide member 31. The locked state of the liver is released, and only the vertical guide member 31 continues to descend. In other words, it is in the "independent falling state of the vertical guide member". While in this " independently lowered state of the vertical guide member ", the movable member 32 stops without lowering in the vertical direction, and the vertical guide member 31 continues to lower, so that when viewed in the lowering direction, The member 32 is in the upper position of the vertical guide member 31.

When the "relative movement end signal" is received while in the "independently lowering state of the vertical guide member", the moving member 32 which is stopped starts to actively move again in the direction in which the vertical guide member 31 has moved. . That is, the moving member 32 starts to descend actively. At this time, it is preferable that the moving member 32 moves faster than the speed at which the vertical guide member 31 moves. That is, the vertical guide member 31 continues to descend, but the vertical guide member 31 starts the acceleration movement in the moving direction of the vertical guide member 31 by receiving the "relative movement end signal", so that the vertical guide It is to catch up with the moving distance of the member (31). By catching the vertical guide member 31, which has been advanced in the moving direction by the acceleration movement of the movable member 32, and returning to the "initial normal position", the "lock signal" is issued to the movable member 32 and The vertical guide member 31 is wound around each other to prevent relative movement, and as the vertical guide member 31 continues to descend, the movable member 32 also descends at the same speed.

On the other hand, the "second relative movement start signal" may be emitted as a signal that causes the movable member 32 and the vertical guide member 31 to move out of the initial normal position and move relative to each other. As will be described later, immediately after the wiper member 10 passes through the protrusion 110, the locked state between the movable member 32 and the vertical guide member 31 is released, and the movable member 32 is actively connected to the vertical guide member ( It should be in the state to move in the direction opposite to the movement direction in 31). In this way, the locked state between the movable member 32 and the vertical guide member 31 is released, and a signal for causing the movable member 32 to actively move in a direction opposite to the moving direction of the vertical guide member 31 is immediately obtained. "Second relative movement start signal". This will be described in more detail below.

Meanwhile, as described above, in the present invention, the horizontal guide member 33 is connected between the pair of moving members 32. That is, the movable members 32 are integrally coupled to both ends of the horizontal guide member 33 positioned horizontally. An end of the connecting member 11 connected to the rear of the wiper member 10 is provided with a horizontal movable member 111, the horizontal movable member 111 is coupled to the horizontal guide member 33, the horizontal guide member (33) is coupled to be movable in the longitudinal direction. Accordingly, as will be described later, when the protrusion 110 is encountered while cleaning the glass window 100, the wiper member 10 retreats or moves forward along the horizontal guide member 33, such that the wiper member 10 moves to the glass window 100. Retreat from or) to advance toward the glass window 100, so that the wiper member 10 can be lowered in a state of avoiding the protrusion (110).

At the start of operation of the cleaning device 1, the movable member 32 and the vertical guide member 31 are in the "initial normal position" described above. That is, the movable member 32 is coupled to the vertical guide member 31, and the movable member 32 and the vertical guide member 31 are locked to prevent relative movement from each other. Therefore, when cleaning the glass window 100 while the cleaning device 1 of the present invention is lowered, the vertical guide member 31 provided in the relative movable assembly 30 provided in the main body 20 in a portion where no protrusion is present. And the moving member 32 is lowered together, and as shown in FIG. 5, the wiper member 10 is also wiped while scraping the surface of the glass window 100 while lowering the front end portion in contact with the glass window 100. .

While the cleaning operation of the conventional glass window 100 as described above proceeds, the wiper member 10 is brought into contact with the protrusion (for example, the protrusion due to the window frame existing between the windows) 110 as shown in FIG. 6. When it is in position, if there is no coupling structure of the movable member 32 and the vertical guide member 31 as in the present invention, the wiper member 10 in the cleaning device 1 is prevented from progressing by the protrusion 110 It can no longer descend and stop, and accordingly the lowering of the movable member 32 is also stopped. However, in the present invention, the "projection detection sensor (not shown)" recognizes that the wiper member 10 is in contact with the protrusion 110, the "projection detection sensor" by the "projection detection sensor" as described above the wiper member ( When it is recognized that 10) is reached, a "first relative movement start signal" is issued, and the locked state between the movable member 32 and the vertical guide member 31 is released, and thus the movable member 32 and Relative motion between the vertical guide members 31 is allowed. Therefore, the movable member 32 is no longer lowered due to the protrusion 110, but the vertical guide member 31 is in a relatively movable state, and thus the vertical guide member 31 and the relative movable assembly 30 are provided. ), And the main body 20 of the cleaning device 1, to which the relative moving assembly 30 is coupled, continues to descend. In this " independently descending state of the vertical guide member ", the vertical guide member 31 moves relative to the moving member 32 as if the moving member 32 is lifted up by the vertical guide member 31. Since the vertical guide member 31 is preferably lowered at a constant speed, the vertical guide member 31 may be lowered by gravity by simply releasing the locked state between the movable member 32 and the vertical guide member 31. If necessary, the vertical guide member 31 may be lowered at a constant speed by actively moving the moving member 32 in a direction opposite to the downward direction of the vertical guide member 31.

As such, in the present invention, when the wiper member 10 meets the protrusion 110, although the wiper member 10 and the moving member 32 are temporarily stopped due to the protrusion 110, the moving member 32 is stopped. Relative movement between the vertical guide member 31 and the vertical guide member 31, the main body 20 to which the vertical guide member 31 and the relative movable assembly 30 and the relative movable assembly 30 are coupled does not stop. It is in the "independent descent state of relative movement assembly" which descends at constant speed. Therefore, in the present invention, even if the wiper member 10 is lowered and meets the protrusion 110, a stop shock such as slack due to the stop of the main body 20 does not occur, and the wiper member 10 due to the stop impact does not occur. Since the splash of water does not occur, contamination of the upper windshield which has already been cleaned will not occur.

On the other hand, in the present invention as described above the rear of the wiper member 10 is coupled to the movable member 32 in a structure that the wiper member 10 can be advanced toward the glass window 100 or retracted from the glass window 100. have. Therefore, when the protrusion 110 is recognized as described above, when the "first relative movement start signal" is issued, the lowering of the wiper member 10 and the movable member 32 is stopped and the vertical guide member 31 and the main body 20. Is in the "independently lowered state of the relative movement assembly" to continue to descend, while at the same time the "retraction signal" is issued to the wiper member 10, so that the wiper member 10 as shown in FIG. Retreat to a length exceeding the protrusion height (t) of the protrusion (110). That is, the horizontal movable member 111 connected to the wiper member 10 is retracted along the horizontal guide member 33 so that the wiper member 10 is retracted from the glass window 100.

As described above, in the "independently lowering state of the relative moving assembly", the relative movement between the vertical guide member 31 and the movable member 32 is carried out even while the wiper member 10 is retracted to a length exceeding the height of the protrusion t. This is allowed, and the vertical guide member 31 and the main body 20 continue to descend without stopping. In FIG. 7, the vertical guide member 31 continues to descend while the wiper member 10 retreats. In FIG. 7, the dotted line shows the position in the state shown in FIG. 6 for reference.

The present invention recognizes whether the front end of the wiper member 10 has been sufficiently retracted so as not to touch the protrusion 110, with the "protrusion detection sensor" recognizing that the descending wiper member 10 will be caught by the protrusion 110. The "retreat detection sensor" (not shown) is provided, and when it is recognized that the wiper member 10 is retracted by the retraction detection sensor so as not to be caught by the protrusion 110, the "relative movement end signal" is provided. As a result, the movable member 32 starts to move in the direction in which the vertical guide member 31 was moved. At this time, the moving member 32 is preferably started to move with acceleration. That is, the moving member 32 is actively accelerated and lowered to restore the inserted state to the vertical guide member 31 again. FIG. 8 illustrates a state in which the moving member 32 accelerates and descends in such a manner that the wiper member 10 passes without reaching the protrusion 110. In FIG. 8, the dotted line shows the position in the state shown in FIG. 7 for reference.

As soon as the moving member 32 descends and the wiper member 10 completely passes through the protrusion 110 without touching the protrusion 110, the second second movement start signal is issued again. For this purpose, the "protrusion passage detection sensor" is provided, and when the wiper member 10 recognizes that the protrusion 110 passes through the protrusion 110 through the "protrusion passage detection sensor" (not shown), the "second relative movement starts as described above. Signal "will be issued. As described above, when the "second relative movement start signal" is issued, the locked state between the movable member 32 and the vertical guide member 31 is released, and the movable member 32 actively moves on the vertical guide member 31. It moves in the opposite direction to the movement direction. The vertical guide member 31 continues to descend while the moving member 32 descends so that the wiper member 10 passes the protrusion 110. In the state where the wiper member 10 passes the protrusion 110, While the wiper member 10 advances to reach the window 100, the wiper member 10 is directly below the protrusion 110, even though the vertical guide member 31 continues to descend to lower its position. It must remain at a height. It is not enough to simply release the locked state between the movable member 32 and the vertical guide member 31 to make such a state, and the movable member 32 is actively connected to the moving direction of the vertical guide member 31. Move in the opposite direction.

Therefore, when the "second relative movement start signal" is issued, the vertical guide member 31 and the main body 20 continue to descend, and the moving member 32 actively moves in the vertical guide member 31. By moving in the opposite direction, as shown in Figure 9, the moving member 32 is no longer lowered and stays in the position just below the projection 110, only the vertical guide member 31 and the main body 20 At the same time, the lowering at the same speed, and at the same time the "advanced signal" of the wiper member 10 is emitted, the wiper member 10 is advanced toward the glass window 100 so that the front end is just below the projection window 100 ) Is reached. That is, the horizontal movable body 111 connected to the wiper member 10 is advanced along the horizontal guide member 33 so that the wiper member 10 is advanced toward the glass window 100.

Therefore, in the present invention, it is possible to start the cleaning by the wiper member 10 again from the position immediately below the protrusion, and has the effect that no part of the cleaning is not generated. For reference, the dotted line in FIG. 9 illustrates the position in the state shown in FIG. 8.

When the front end of the wiper member 10 touches the window 100 by the wiper contact sensor (not shown), a "relative movement end signal" is issued again, and the moving member as shown in FIG. 32 is rapidly lowered with acceleration in the direction in which the vertical guide member 31 is moved in order to catch up with the moving distance of the vertical guide member 31. When the movable member 32 is positioned in the "initial normal position" state by the aggressive acceleration and fall of the movable member 32, the movable member 32 and the vertical guide member 31 together become the "locked state" again. It will descend at the same speed. For reference, the dotted line in FIG. 10 illustrates a position in the state shown in FIG. 9.

On the other hand, the relative movement and locking between the moving member 32 and the vertical guide member 31 as described above, the acceleration movement of the moving member 32 and the forward / retracting operation of the wiper member 10 is implemented in the following manner Can be.

As shown in FIG. 4, the rack and pinion structure may be applied between the movable member 32 and the vertical guide member 31. That is, the first guide portion 31 is formed with the first rack portion 15a having a sawtooth shape in the longitudinal direction thereof, and the first rack portion is provided in the movable member 32 coupled to the vertical guide member 31. The first pinion 16a which meshes with 15a is stored. The first pinion 16a is rotationally driven by a first driving motor M1 embedded in the moving member 32, and the first driving motor M1 actively rotates in the on state. The first pinion 16a is rotated to rotate, but in the off state, the first drive motor M1 is applied when a rotational force is applied to the rotation shaft from the outside according to the type of the signal transmitted to the first drive motor M1. The rotating shaft may be rotated, or on the contrary, the rotating shaft may not be rotated even when a rotating force is applied from the outside. That is, when the "lock signal" is transmitted when the first driving motor M1 is turned off and the first driving motor M1 does not rotate the rotating shaft by itself, the rotating shaft of the first driving motor M1 is locked. As a result, even if a rotational force is applied to the rotating shaft from the outside, the rotating shaft does not rotate. That is, even if gravity or other force acts on the first rack portion 15a or the first pinion 16a, the first pinion 16a does not rotate, so that the first rack portion 15a and the first pinion 16a do not rotate. Stick to the state and position of each other. However, if the "release signal" is transmitted when the first driving motor M1 does not rotate the rotating shaft by itself when it is turned off, the locked state of the rotating shaft of the first driving motor M1 is released and the first driving motor ( The rotating shaft of M1) is brought into a rotatable state. Therefore, when the release signal is transmitted in the off state, when the gravity or other force acts on the first rack portion 15a or the first pinion 16a, the first pinion 16a may be rotated at a constant speed. . This first drive motor (M1) itself is already known.

As described above, in the "initial initial position", since the first driving motor M1 is off and the rotation shaft is locked, the rotation shaft of the first driving motor M1 is not rotated at all by an external force. It is fixed so that the first pinion 16a cannot be rotated. Accordingly, the movable member 32 and the vertical guide member 31, in which the first rack portion 15a and the first pinion 16a are engaged with each other, are in a locked state capable of moving together at the same speed without relative movement to each other. will be.

When the protrusion 110 detects the first relative movement start signal as described above, the release signal is also transmitted to the first driving motor M1 provided in the moving member 32. Accordingly, the locked state of the rotation shaft of the first driving motor M1 is released, so that the first pinion 16a can rotate with respect to the first rack portion 15a. That is, the locked state of the movable member 32 and the vertical guide member 31 is released so that the relative movement between the movable member 32 and the vertical guide member 31 is allowed. Accordingly, relative movement occurs in which only the vertical guide member 31 descends. At this time, since the first driving motor M1 is still in the off state, the first pinion 16a is simply rotated by gravity acting on the vertical guide member 31 attached to the main body 20 so that the vertical guide member ( 31 may be lowered, but in order to ensure constant fall of the vertical guide member 31, the first driving motor M1 is turned on, so that the first driving motor M1 is turned into a first pinion. 16a) may be actively rotated to allow relative movement to occur in the form of the movable member 32 going up the vertical guide member 31.

When the wiper member 10 retreats so that the wiper member 10 does not touch the protruding portion and the "relative movement end signal" is issued, the first driving motor M1 is turned on to rotate and rotate the rotating shaft, and accordingly the first pinion ( As the 16a) rotates, the moving member 32 also starts to move in the direction in which the vertical guide member 31 moves, so that the relative movement is performed by the moving member 32 again catching up with the vertical guide member 31. Get up. That is, in a state where the main body 20 and the vertical guide member 31 descend at the same speed, the movable member 32 descends in an accelerated state and catches up with the descending speed of the vertical guide member 31 to move the movable member 32. Is approaching the initial normal position again.

On the other hand, when the "second relative movement start signal" is issued, the locked state of the movable member 32 and the vertical guide member 31 is released and the first drive motor M1 is turned on. The first driving motor M1 rotates the first pinion 16a such that the first pinion 16a goes up the first rack portion 15a in the direction opposite to the direction in which the vertical guide member 31 descends. Let's go. Therefore, the wiper member 10 appears to be stationary in the air without moving, and only the vertical guide member 31 descends so that relative movement occurs.

The rack and pinion coupling structure as described above may also be applied to the retraction and the forward operation of the wiper member 10. In the embodiment shown in the figure, the horizontal member 111 is provided at the end of the connecting member 11 which is connected to the rear of the wiper member 10, the horizontal member 111 is a horizontal guide member 33 Is bound to A second rack portion 15b is formed in the horizontal guide member 33 in the longitudinal direction thereof, and the second rack portion 15b fits inside the horizontal movable member 111 coupled to the horizontal guide member 33. The second pinion 16b and the second drive motor M2 for rotating and driving the second pinion 16b are disposed so that the horizontal movable member 111 is coupled to the horizontal guide member 33 according to a signal. It can be configured to retreat rearward or forward in the longitudinal direction of the horizontal guide member 33. That is, when the "first relative movement start signal" is transmitted and the "retreat signal" is transmitted, the second driving motor M2 provided in the horizontal moving body 111 is operated to rotate the second pinion 16b to perform the first movement. As the horizontal movable body 111 and the connecting member 11 coupled thereto retreat along the two rack portions 15b, the wiper member 10 retreats from the window 100. When the "second relative movement start signal" is issued, at the same time, the "advanced signal" is transmitted, and the second pinion 16b is operated by the operation of the second driving motor M2 provided in the horizontal moving body 111. ) Rotates so that the horizontal movable member 111 and the connecting member 11 coupled thereto are advanced along the second rack portion 15b so that the wiper member 10 comes into contact with the glass window 100.

The relative movement permitting structure of the movable member 32 and the vertical guide member 31 may not be implemented only by the rack and pinion described above, and the two members may be moved relative to each other or combined together as necessary. Any other known mechanical structure may be employed. Also in the advancing and retracting structure of the horizontal movable member 111, it is not implemented only by the structure using the rack and pinion described above, and other known mechanical structures may be adopted.

As described above, in the cleaning apparatus 1 according to the present invention, when the wiper member 10 descends while cleaning the window 100 and meets the protrusion 110, the wiper member 10 retreats to protrude 110. After passing through) and while cleaning while lowering again in contact with the glass window 100, the main body 20 made of a heavy weight body is continuously lowered at a constant speed irrespective of this operation of the wiper member (10). Therefore, the stop shock due to the sudden stop of the main body 20 is not applied to the wiper member 10, and the water splashed from the wiper member 10 to the upper windshield 100 due to the stop shock, and the part which was cleaned is contaminated again. It is possible to prevent the phenomenon from occurring.

As described above, in the present invention, the "protrusion detection sensor (not shown)" for detecting whether the wiper member 10 is in contact with the protrusion 110, the wiper member 10 is to retreat to avoid the protrusion 110. "Retreat detection sensor (not shown)" to recognize whether the retracted enough to reach the projection 110 when not, when the wiper member 10 is retracted and then lowered again when passing through the "protrusion 10" is passed through the projection (10) Detection sensor (not shown) "," wiper contact sensor (not shown) for recognizing whether the wiper member 10 has touched the glass window 100 when the wiper member 10 has fully descended past the protruding portion and then moved back toward the glass window. ) "Is provided. The "protrusion sensor,""retractionsensor,""protrusionsensor," and "wiper contact sensor" are described separately according to the recognition situation, but using a variety of known object recognition sensor technology and separate independent sensors It can be configured to recognize each situation, it is composed of one sensor or composite sensor group (hereinafter referred to as "composite sensor group") to all the above-mentioned situation (the situation that the wiper member is in contact with the projection, the wiper member is sufficient The retracted situation, the passage through the protrusion, the wiper member touching the glass window). The "composite sensor group" is to recognize the presence of the projection 110, or through the manner of recognizing the signal reflected from the projection 110 or the glass window 100 by sending a signal to the omnidirectional at the end of the wiper member 10 It may be made of a sensor of the type to recognize the contact with the 100, attached to the end of the wiper member 10 is located directly between the protrusion 110 and the wiper member 10, the wiper member 10 is a protrusion Recognizing the contact when the contact 110 or the glass window 100 and may be configured in a form that recognizes when the contact between the wiper member 10 and the protrusion 110 is dropped, the moving member 11 and The wiper member 10 and the protrusion 110 or the glass window 100 may be recognized by sensing the pressure change and the like positioned between the arm parts 12. Preferably, the "composite sensor group" is a combination of the above various recognition methods.

10: wiper member
32: moving member
20: main body
31: vertical guide member

Claims (3)

The main body 20 facing the outer wall of the building facing the outer wall of the building and vertically descending, and the front wall of the main body 20 facing the outer wall surface is provided on the outer wall of the building as the main body 20 moves A building exterior wall cleaning apparatus comprising a wiper member 10 which contacts a surface and scrapes a substance on the surface.
A relative moving assembly 30 for allowing the wiper member 10 and the main body 20 to move relative to each other is provided to face each other at both sides of the main body 20 in front of the main body 20.
The relative movable assembly 30 is coupled to the pair of vertical guide member 31 and the vertical guide member 31 which are arranged vertically, but are arranged side by side in the direction of the outer wall surface of the building, the vertical guide The pair of movable members 32 and the pair of movable members 32 which are fixed to the member 31 or allow relative movement with the vertical guide member 31 and the pair of movable members 32 are connected to each other. A horizontal guide member 33 disposed between the pair of vertical guide members 31 in a direction;
A rear end of the wiper member 10 is provided with a connecting member 11;
An end of the connection member 11 is provided with a horizontal movable member 111, the horizontal movable member 111 is coupled to the horizontal guide member 33, the horizontal guide member 33 to be movable in the longitudinal direction of the The wiper member 10 may move forward or retreat from the outer wall surface of the building;
The movable member 32 is locked to the vertical guide member 31 so as not to be movable relative to each other, or is coupled to allow relative movement. Thus, the moving member 32 is vertical in a portion where the protrusion 110 is not present. When the guide member 31 and the moving member 32 are lowered together while being locked together, the outer wall surface is cleaned by the wiper member 10, and when it is recognized that the wiper member 10 comes into contact with the protrusion 110. Since the locked state between the movable member 32 and the vertical guide member 31 is released to allow relative movement, the movable member 32 and the wiper member 10 are not lowered, and the main body 20 and the vertical guide member are not allowed to move. 31 continues to descend, and at the same time the horizontal movable member 111 retreats from the horizontal guide member 33 so that the wiper member 10 retreats;
In the state where the wiper member 10 is retracted so as not to contact the protrusion 110, the movable member 32 accelerates and descends in the direction in which the vertical guide member 31 is moved;
After the wiper member 10 descends and passes the protrusion 110, the main body 20 and the vertical guide member 31 continue to descend, and the vertical guide member 31 descends relative to the movable member 32. As the horizontal moving body 111 moves forward along the horizontal guide member 33 in the direction of the outer wall surface while the relative movement occurs, the front end of the wiper member 10 contacts the outer wall surface by advancing the wiper member 10;
In the state in which the wiper member 10 touches the outer wall surface, the movable member 32 is also lowered with the movement of the vertical guide member 31;
Even if the protrusions are present, the main body 20 can be lowered at constant speed without stopping, so that the outer wall surface of the upper part of the protrusions can be prevented from being contaminated again due to the presence of the protrusions.
The method of claim 1,
A first rack portion 15a is formed long in the vertical guide member 31;
A first driving motor (not shown) is coupled to the vertical guide member (31) to rotate the first pinion (16a) and the first pinion (16a) engaged with the first rack portion (15a). M1) is provided, the movable member 32 and the vertical guide member 31 is a building exterior wall cleaning apparatus, characterized in that the relative movement is made by the combination of the rack portion and the pinion.
The method according to claim 1 or 2,
A second rack portion 15b is elongated in the horizontal guide member 33;
In the horizontal movable member 111 coupled to the horizontal guide member 33, an additional second pinion 16b and the second pinion that engage with the second rack portion 15b provided in the horizontal guide member 33 are formed. An additional second drive motor M2 for rotating and driving 16b) is provided.
By the operation of the second rack portion 15b and the second pinion 16b of the horizontal guide member 33, the horizontal movable member 111 is retracted or moved away from the outer wall surface from the horizontal guide member 33 or the outer wall surface. The building exterior wall cleaning apparatus, characterized in that configured to advance in the direction approaching.

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