JP2011256580A - Liquid supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate spray coating work by means of a spray coating system by achieving weight reduction of the spray coating system while avoiding spray coating unevenness on a wall surface.SOLUTION: A spray coating system 1 comprises: a pair of left and right rails 10 vertically installable along a wall surface 3; wheels 11 mounted to the lower ends of the rails 10 and movable in a lateral direction Y on the rails along the wall surface 3; a spray unit 12 attached to the rails 10, liftable along the rails 10 and supplying a spray agent onto the wall surface 3; and a deflection preventive device 13 for preventing deflection of the rails 10 when they are installed along the wall surface 3.

Description

  The present invention relates to a liquid supply system for supplying liquid to a wall surface of a building.

  Conventionally, when building a building, a lightweight cellular concrete panel (ALC panel) or siding is installed as the outer wall of the building and sprayed with a spray agent on the wall of the outer wall, or when renovating the building, In general, cleaning is performed by supplying a cleaning liquid. This type of spraying and cleaning is generally done manually by creating a scaffold on the wall of the building at the site. However, when buildings are densely packed and the work space is small, it is impossible to make a scaffold, so that manual spraying (painting) and cleaning are difficult.

  Therefore, in order to be able to perform the spraying work even in a narrow area, Patent Document 1 discloses a guide rail installed in a direction transverse to the wall surface, a traverse carriage of a portal frame that traverses along the guide rail, An elevator car that moves up and down along the traversing carriage, and the elevator car is provided with a coating nozzle and a guide member that contacts a wall surface and guides the vertical movement of the elevator car It is disclosed. In this coating apparatus, the lifting carriage having a coating nozzle or the like can move in the vertical and horizontal directions, so that even if the work space is small, it is possible to perform the spraying work without creating a scaffold without any manual work.

JP 2004-108044 A

  However, in the above-described coating apparatus, a guide rail is disposed on the wall surface of the building over the entire lateral direction of the wall surface, and a transverse carriage extending over the entire vertical direction of the outer wall of the building is supported on the guide rail. . The traversing carriage is further provided with a lifting carriage. As a result, the entire apparatus has become large.

  Moreover, since the frame which the above-mentioned traversing cart has becomes long in the vertical direction, there exists a possibility of bending. When the frame of the traversing carriage is bent, the distance between the painting nozzle of the lifting carriage provided on the traverse carriage and the wall surface changes depending on the location, and there is a possibility that the coating on the wall surface may be uneven. For this reason, in order to prevent the frame of the traversing carriage from being bent, it is necessary to increase the strength by increasing the thickness of the frame. In addition, the guide rail is loaded with a traversing carriage or a lifting carriage, so it is particularly necessary to increase the thickness by increasing the thickness. As a result, the weight of the entire coating apparatus increases, and a great deal of labor is required for installation of the coating apparatus, movement of the traversing carriage during spraying, and the spraying work becomes difficult.

  The present invention has been made in view of such points, and can reduce the weight while preventing unevenness in the liquid supply such as spraying on the wall surface, and easily perform the liquid supply work such as spraying work. It is an object to provide a liquid supply system that can be performed.

  The present invention for achieving the above object is a liquid supply system for supplying liquid to a wall surface, and is attached to a pair of left and right rails that can be installed in the vertical direction along the wall surface, and a lower end of the rail. A means for moving the rail in the left-right direction along the wall surface, a liquid supply unit attached to the rail and capable of moving up and down along the rail, and supplying liquid to the wall surface, and the wall surface A deflection preventing mechanism for preventing the rail from being bent when installed along the rail.

  According to the present invention, the deflection preventing mechanism prevents the rail from being bent at the time of installation on the wall surface, and the liquid can be supplied evenly. Therefore, the rail can be made thinner and lighter accordingly. Further, since the rail is moved by the moving means attached to the lower end thereof, there is no need for a guide rail installed on the wall surface as in the prior art, and this can also simplify the system and reduce the weight. Therefore, it is possible to easily perform liquid supply operations such as system installation and rail movement during liquid supply.

  The bend prevention mechanism includes a wire stretched along the rail, a wire fixing portion that is provided at a lower portion of the rail and fixes a lower end side of the wire, an upper portion of the rail, You may have a wire winding part which winds up an upper end side, and a wire guide part which is provided between the upper part and the lower part of the said rail, and guides the said wire along the said rail. In this case, since the rail deflection can be corrected by winding the wire, the rail deflection can be prevented with a simple mechanism.

  The wire may be stretched along the rail at a position farther from the wall surface than a central axis extending in the longitudinal direction of the rail. In such a case, by winding the wire, it is possible to apply a force that warps the rail toward the wall surface. As a result, the rail can be pressed against the wall surface in a state where the urging force to the wall surface is applied to the rail, so that the posture of the rail during installation on the wall surface can be stabilized. Further, for example, it is possible to prevent the rail from being bent in the direction away from the wall surface due to the reaction of the liquid supplied from the liquid supply unit to the wall surface.

  The rail may be provided with a bending allowance portion that allows bending in a direction approaching the wall surface. In such a case, the rail can be convexly warped toward the wall surface before the rail is installed on the wall surface, and the rail can be pressed against the wall surface in this state. Thereby, a rail can be installed in a wall surface in the state which provided the urging | biasing force to the wall surface side of a rail appropriately, and the attitude | position of the rail at that time can be stabilized reliably.

  The rail may be formed by connecting a plurality of rail members, and the deflection allowing portion may be constituted by a connecting portion of the rail members. In such a case, it is possible to realize the deflection allowing portion without providing a special mechanism.

  The rail may be provided with a spacer that protrudes toward the wall surface and contacts the wall surface. In such a case, the distance between the rail and the wall surface can be kept constant, and the liquid can be supplied evenly.

  A wheel that is rotatable around a rotation axis in the left-right direction perpendicular to the longitudinal direction of the rail may be provided at the tip of the spacer. In such a case, the rail can be easily moved up and down along the wall surface. Thereby, for example, it is possible to suitably carry in and carry out the rail from above the wall surface.

  The spacer may be retractable to the rail side. In such a case, for example, since the spacer can be retracted to the rail side when the rail is not shifted in the left-right direction, the spacer can be prevented from coming into contact with the wall surface already supplied with the liquid.

  The bend prevention mechanism may include a plurality of projecting portions projecting from the rail toward the wall surface side, and a locking portion provided on the wall surface and latching the projecting portion. In such a case, by locking the protruding portion of the rail to the locking portion of the wall surface, it is possible to easily prevent the rail from being bent when installed on the wall surface.

  The locking portion is a hook whose tip is directed upward, and the protruding portion has a recess on a lower surface, and the recess of the protruding portion is locked to the hook of the locking portion. Good.

  The liquid supply system may further include a guide rail that is installed on the ground and guides the movement of the wall surface of the moving unit along the left-right direction.

  The moving means may be a wheel, and the guide rail may be provided with a wheel slip prevention function for preventing the wheel from slipping in a direction approaching and separating from the wall surface.

  According to the present invention, it is possible to reduce the weight of the liquid supply system while preventing the liquid supply to the wall surface from being uneven, and thus it is possible to easily perform the liquid supply operation by the liquid supply system.

It is a front view of the spray painting system installed in the wall surface. It is a side view of the spray painting system installed in the wall surface. It is an enlarged view of the connection part of a rail. It is an enlarged view which shows the state which the rail bent. It is sectional drawing of a guide rail. It is sectional drawing of the guide rail with a pin. It is sectional drawing which shows the internal structure of a spraying unit. (A) is explanatory drawing which shows the ratchet mechanism of a wire winding part when a pawl member is located below, (b) is the ratchet of a wire winding part when a pawl member is located above It is explanatory drawing which shows a mechanism. (A) is explanatory drawing which shows the ratchet mechanism of another structure when a pawl member is located below, (b) is the ratchet mechanism of another structure when a pawl member is located above. It is explanatory drawing shown. (A) shows a state where the rail is bent, (b) shows a state where the rail is bent convexly toward the wall surface side, and (c) shows a state where the rail is installed along the wall surface. It is a side view of a rail which has a spacer with a wheel. It is explanatory drawing which shows the state which rotated the spacer with a wheel. It is explanatory drawing which shows the state which latched the rail to the hook-shaped latching | locking part of a wall surface. It is an enlarged view of the rail which shows the structure of a protrusion part and a latching | locking part. It is explanatory drawing which shows operation | movement when latching a rail to the latching | locking part of a wall surface.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG.1 and FIG.2 is explanatory drawing which shows the outline of a structure of the spray coating system 1 as a liquid supply system which concerns on this Embodiment. FIG. 1 is a front view of a spray coating system 1 installed on the wall surface 3 of the building 2, and FIG. 2 is a side view of the spray coating system 1 installed on the wall surface 3 of the building 2.

  The spray coating system 1 blows against the wall surface 3 and a pair of left and right rails 10 that can be installed in the vertical direction along the wall surface 3 of the building 2, wheels 11 as moving means attached to the lower end of the rail 10, and the wall surface 3. It has the spraying unit 12 as a liquid supply unit which sprays an additive, and the bending prevention mechanism 13 which prevents the rail 10 at the time of being installed along the wall surface 3.

  The rail 10 is configured by connecting a plurality of, for example, three rail members 20, 21, 22 in the vertical direction. Hereinafter, the uppermost rail member is referred to as an upper rail member 20, the lowermost rail member is referred to as a lower rail member 21, and the rail member therebetween is referred to as an intermediate rail member 22 as necessary.

  As shown in FIG. 3, the adjacent rail members 20 to 22 (rail member 20 and rail member 22, rail member 22 and rail member 21) pass a plate-like and elongated connecting member 30 between the rail members. The connecting member 30 and each rail member are connected by fastening with fastening members 31 such as bolts and nuts. A gap D is provided between the adjacent rail members 20 to 22, and the adjacent rail members 20 to 22 can be slightly bent at the connecting portion as shown in FIG. The connecting portion of the rail members 20 to 22 is a bending allowance portion A that allows bending in a direction approaching the wall surface 3 of the entire rail 10. Further, as shown in FIG. 3, the connecting member 30 has a central axis C along the longitudinal direction of the rail members 20 to 22 (a direction approaching and separating from the wall surface 3 shown in FIG. The rail members 20 to 22 are easily bent convexly toward the wall surface 3 side.

  Spacers 40 for making the distance between the rail 10 and the wall surface 3 constant are provided at the upper and lower portions of each rail member 20-22. The spacer 40 protrudes from the rail members 20 to 22 to the wall surface 3 side by a certain distance. Moreover, as shown in FIG. 1, each rail member 20-22 is provided with the horizontal frame 41 which connects between a pair of left and right rail pieces.

  The wheel 11 is attached under the horizontal frame 41 provided at the lower end of the rail 10. The wheels 11 are provided at two places in the left-right direction Y along the wall surface 3. On the ground B, guide rails 50 are provided along the left-right direction Y of the wall surface 3. The wheel 11 is placed on the guide rail 50 and can move in the left-right direction Y by rotating on the guide rail 50. As shown in FIG. 5, the guide rail 50 has a protrusion 50a at the center. The protrusion 50a is formed along the left-right direction Y. On the other hand, the wheel 11 includes two tires 11a and 11b arranged in the front-rear direction X, and a gap F is formed between the two tires 11a and 11b. The protrusion 50a of the guide rail 50 is fitted in the gap F of the wheel 11. The guide rail 50 is formed of a relatively heavy steel plate or the like. Due to the configuration of the guide rail 50, the displacement of the wheel 11 in the front-rear direction X with respect to the wall surface 3 is prevented. As shown in FIG. 6, a pin 50 b that protrudes downward may be provided on the lower surface of the guide rail 50. In such a case, the movement of the guide rail 50 in the front-rear direction X is restricted. Is more reliably prevented from shifting in the front-rear direction X, and the distance between the wall surface 3 and the spraying unit 12 can be kept constant.

  The spray unit 12 is disposed between the left and right rail pieces of the rail 10. For example, as shown in FIG. 7, the spraying unit 12 includes a housing 60 whose back surface, upper, lower, left, and right surfaces are closed and whose wall surface 3 side is open. In the housing 60, for example, a spray nozzle 61 that ejects the spray agent toward the wall surface 3 and a storage chamber 62 in which the spray agent is stored are provided. The storage chamber 62 and the spray nozzle 61 are connected by a pipe line 63. The storage chamber 62 is connected to a spraying agent supply source (not shown) provided outside. Further, a spray switch (not shown) is connected to the spray nozzle 61 by wire or wirelessly. When the operator operates the spray switch, the paint is sprayed from the spray nozzle 61 toward the wall surface 3.

  For example, a ring 64 is attached to the upper surface of the housing 60. A wire 65 is connected to the ring 64, and this wire 65 is connected to an elevating drive unit 66 provided on the uppermost horizontal frame 41 of the upper rail member 20 as shown in FIG. 1. The blowing unit 12 can be moved up and down along the rail 10 by moving the wire 65 up and down by the lifting drive unit 66.

  The bending prevention mechanism 13 is provided, for example, at a wire 70 stretched along the rail 10, a lower portion of the rail 10, a wire fixing portion 71 that fixes the lower end side of the wire 70, and an upper portion of the rail 10. A wire winding portion 72 that winds the upper end side of the wire 70 and a wire guide portion 73 that is provided between the upper and lower portions of the rail 10 and guides the wire 70 along the rail 10 are provided.

  The wires 70 are provided on the left and right side surfaces of the rail 10 from the upper part to the lower part of the rail 10. The wire fixing portion 71 is a lower portion of the lower rail member 21 and is provided on both the left and right side surfaces.

  The wire take-up part 72 is provided on the left and right side surfaces of the upper rail member 20. The wire winding portion 72 has a winding shaft 80 on which the upper end side of the wire 70 is fixed and the wire 70 is wound. The winding shaft 80 is formed in a cylindrical shape and protrudes outward from the side surface of the rail 10. The outer tip of the winding shaft 80 has a large diameter, and a person can hold the large diameter portion to turn the winding shaft 80. Further, the winding shaft 80 is provided on each of the left and right rail pieces of the rail 10, but a configuration in which the left and right winding shafts 80 are connected by poles may be employed. According to this configuration, the left and right winding shafts 80 can be rotated in synchronization.

  The take-up shaft 80 is provided with a ratchet mechanism 81. The ratchet mechanism 81 includes, for example, a gear 82 attached to the winding shaft 80, a pawl member 83, and a spring 84 that biases the pawl member 83 toward the gear 82 as shown in FIG. The pawl member 83 has a pawl 83a that allows the gear 82 in FIG. 8 to rotate counterclockwise and restricts the clockwise rotation in the upper part of the surface of the gear 82 side, and allows the gear 82 to rotate clockwise and regulates counterclockwise in the lower part. A pawl 83b is provided. At the tip of the spring 84, a sphere 85 is provided that fits into a recess 83c formed on the surface of the pawl member 83 on the spring 84 side. As shown in FIG. 8A, the pawl member 83 is moved downward and the spherical body 85 is fitted into the upper concave portion 83c, so that the gear 82 is engaged with the upper pawl 83a, and only the counterclockwise rotation of the winding shaft 80 is achieved. Is acceptable. Further, as shown in FIG. 8B, the pawl member 83 is moved upward and the sphere 85 is fitted into the lower concave portion 83c, so that the gear 82 is engaged with the lower pawl 83b, and the winding shaft 80 Only clockwise is allowed. Thereby, it is possible to prevent the winding shaft 80 from rotating reversely when winding the wire 70 or stretching the wire 70.

  In the ratchet mechanism 81, as shown in FIG. 9, the pawl member 83 may not have the lower pawl 83b. In this case, as shown in FIG. 9A, the pawl member 83 is moved downward, and the spherical body 85 is fitted into the upper concave portion 83c, so that the gear 82 is engaged with the upper pawl 83a and the winding shaft 80 is engaged. Only the counterclockwise direction is allowed, and the pawl member 83 is moved upward as shown in FIG. 9B, and the sphere 85 is fitted into the lower concave portion 83c, so that the gear 82 is detached from the pawl member 83 and wound. The take-up shaft 80 can freely rotate. Thus, for example, the winding shaft 80 can be freely rotated when the wire 70 is stretched while preventing reverse rotation when winding the wire 70.

  As shown in FIG. 1, the wire guide portions 73 are provided at a plurality of locations in the vertical direction on both side surfaces of the rail 10. The wire guide portion 73 is formed in a ring shape through which the wire 70 passes. For example, the wire guide portion 73 is provided near the upper portion and the lower portion of each rail member 20-22. As shown in FIG. 3, a part of the wire guide portion 73 is provided in the vicinity of the connecting portion between the rail members 20 to 22 (near the bending allowance portion A).

  Next, the spraying operation of the wall surface 3 using the spray coating system 1 configured as described above will be described.

  First, the spray coating system 1 is installed on the wall surface 3 of the building 2. First, the guide rail 50 is installed on the ground B along the wall surface 3 of the building 2. Next, for example, the rail 10 is lowered along the wall surface 3 from the roof while connecting the rail members 20 to 22 in order from the bottom on the roof of the building 2. The wheel 11 is lowered onto the guide rail 50, and the gap F between the wheels 11 is fitted into the protrusion 50 a of the guide rail 50.

  Next, for example, as shown in FIG. 10A, the wire 70 is wound up by the wire winding portion 72 from a state where the wire 70 is loosened and the rail 10 is bent. This winding is performed by the operator rotating the winding shaft 80 in one direction. As shown in FIG. 10B, the wire 70 is wound to such an extent that the rail 10 slightly warps convex toward the wall surface 3 side. At this time, as shown in FIG. 4, the bending allowance portion A of the connecting portion of the rail members 20 to 22 is mainly bent to realize the entire warpage of the rail 10, and the entire rail 10 is attached to the wall surface 3 side. Power is generated. Thereafter, as shown in FIG. 10C, the rail 10 is pressed against the wall surface 3 to form a straight line, and each spacer 40 of the rail 10 is brought into contact with the wall surface 3. Thus, the spray painting system 1 is installed on the wall surface 3 of the building 2.

  Next, the spraying agent is sprayed onto the wall surface 3. At this time, the spraying agent 12 is sprayed onto the wall surface 3 from the spray nozzle 61 while the spraying unit 12 moves up and down. This spraying is performed in the form of a strip in the vertical direction with a width in the horizontal direction Y. When the vertical belt-like spraying is finished, the rail 10 is shifted in the left-right direction Y along the guide rail 50 by the worker. Thereafter, the spraying unit 12 moves up and down again, spraying the spraying agent onto the wall surface 3, and performing strip-shaped spraying with a predetermined width. This spraying is repeated, and spraying is performed on a desired range of the wall surface 3.

  When the spray coating system 1 is removed from the building 2 after the spraying is finished, the rail 10 is separated from the wall surface 3 as shown in FIG. Thereafter, the winding shaft 80 is rotated in the opposite direction to that during winding, and the wire 70 is loosened as shown in FIG. Thereafter, the rail 10 is pulled upward, the rail members 20 to 22 are sequentially separated, and the entire rail 10 is collected on the roof.

  According to the above embodiment, the deflection preventing mechanism 13 prevents the rail 10 from being bent at the time of installation on the wall surface 3, and the spraying can be performed evenly. can do. Further, since the rail 10 is moved by the wheel 11 attached to the lower end thereof, there is no need for a guide rail installed on the wall surface as in the prior art, and this also simplifies and reduces the weight of the spray coating system 1. it can. Therefore, it is possible to easily perform spraying operations such as installation of the spray coating system 1 and movement of the rail 10 during spraying.

  Since the deflection preventing mechanism 13 includes the wire 70, the wire fixing portion 71, the wire winding portion 72, and the wire guide portion 73, the deflection of the rail 10 can be corrected by winding the wire 70. As a result, the rail 10 can be prevented from being bent by a simple mechanism.

  Since the wire 70 is stretched along the rail 10 at a position farther from the wall surface 3 than the central axis C of the rail 10 in the front-rear direction X, the wire 70 is wound on the wall 3 side with respect to the rail 10. A convex warping force can be applied. As a result, the rail 10 can be pressed against the wall surface 3 in a state in which the urging force toward the wall surface 3 is applied to the rail 10, so that the posture of the rail 10 at the time of installation on the wall surface 3 can be stabilized. it can. Moreover, it can prevent that the rail 10 bends in the direction which leaves | separates from the wall surface 3 by the reaction which the spraying agent was supplied to the wall surface 3 from the spraying unit 12. FIG.

  Since the rail 10 is provided with a bending allowance portion A that allows the rail 10 to bend in the direction approaching the wall surface 3, the rail 10 can be convexly warped toward the wall surface 3 before the rail 10 is installed on the wall surface 3. In this state, the rail 10 can be pressed against the wall surface 3. Thereby, the rail 10 can be installed on the wall surface 3 in a state where a biasing force to the wall surface 3 side of the rail 10 is appropriately applied, and the posture of the rail 10 at this time can be reliably stabilized.

  Since the bending | flexion permission part A is comprised by the connection part of the rail members 20-22, the bending | flexion permission part A is realizable, without providing a special mechanism.

  Since the rail 10 is provided with the spacer 40, the distance between the rail 10 and the wall surface 3 can be made constant and spraying can be performed without unevenness.

  Since the spray coating system 1 has the guide rail 50 of the wheel 11, the rail 10 can be suitably moved in the left-right direction Y of the wall surface 3. Further, the guide rail 50 is provided with a wheel slip prevention function such as a ridge portion 50a that prevents the wheel 11 from slipping in the direction of approaching and separating from the wall surface 3. The side can be prevented from separating from the wall surface 3.

  As shown in FIG. 11, the spacer 40 described in the above embodiment may have a wheel 90 that is rotatable around a rotation axis in the left-right direction Y perpendicular to the longitudinal direction of the rail 10. Further, the wheel 90 of the spacer 40 may be retractable to the rail 10 side. In such a case, for example, the spacer 40 has an arm portion 91 that can rotate with respect to the rail 10. A wheel 90 is attached to the tip of the arm portion 91. In addition, a wire 92 extending to the top of the rail 10 is connected to the wheel 90. The wheel 90 is connected to a portion below the wheel 90 of the rail 10 by a spring 93. With the spring 93 in a natural length state, the spacer 40 is in a vertical direction with respect to the rail 10 and the wall surface 3. When the wheel 90 is pulled upward by the wire 92, the wheel 90 rotates around the rotation axis of the arm portion 91 as shown in FIG. 12 and approaches the rail 10, and the spacer 40 retracts from the wall surface 3 to the rail 10 side. . When the force pulling the wire 92 upward is removed, the wheel 90 is pulled downward by the spring 93 and the spacer 40 is returned to the original position in the direction perpendicular to the wall surface 3.

  In this case, since the rail 10 can be easily moved up and down along the wall surface 3 by the wheel 90, for example, the rail 10 can be carried in and out from above the wall surface 3 suitably. Further, since the spacer 40 can be retracted to the rail 10 side, for example, the spacer 40 is retracted to the rail 10 side when the rail 10 is not shifted in the left-right direction Y, and the spacer 40 is applied to the wall surface 3 that has already been sprayed. Can be prevented from contacting.

  In the above embodiment, the bending prevention mechanism 13 uses the wire 70. However, as shown in FIG. 13, the plurality of protruding portions 100 protruding from the rail 10 toward the wall surface 3 and the wall surface 3 are provided. It may be provided with a locking part 101 to which the protruding part 100 is locked. In such a case, as shown in FIG. 14, the protruding portion 100 is formed in a rectangular parallelepiped box shape having an open lower surface, and has a concave portion 100 a on the lower surface. The locking portion 101 protrudes from the wall surface 3 in the vertical direction and is formed in a hook shape whose tip is bent upward.

  The protruding part 100 is provided for each rail member 20 to 21, for example, and the locking part 101 is provided at a position corresponding to the protruding part 100.

  And when installing the spray coating system 1 in the wall surface 3, as shown in FIG. 15, each protrusion part 100 of the rail 10 is hooked on the latching | locking part 101 of the wall surface 3. As shown in FIG. Thereby, the bending of the rail 10 at the time of installing in the wall surface 3 can be prevented easily. Further, unintended movement of the rail 10 in the left-right direction Y can also be prevented.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, in the above embodiment, the rail moving means is the wheel 11, but it is also possible to adopt a configuration formed by a gear mechanism including a rack and a pinion. Alternatively, a caterpillar can be employed instead of the wheel. Moreover, although the above embodiment was an example applied to the spray coating system 1, this invention is applicable also to other liquid supply systems, such as the washing | cleaning system which sprays a washing | cleaning liquid on a wall surface.

  INDUSTRIAL APPLICABILITY The present invention is useful for reducing the weight of the liquid supply system while preventing the liquid supply to the wall surface from being uneven, and for easily performing the liquid supply operation by the liquid supply system.

DESCRIPTION OF SYMBOLS 1 Spray painting system 2 Building 3 Wall surface 10 Rail 11 Wheel 12 Spray unit 13 Deflection prevention mechanism 20-22 Rail member 40 Spacer 70 Wire 71 Wire fixing part 72 Wire winding part 73 Wire guide part A Deflection allowable part X The front-back direction Y Left / Right direction

Claims (12)

A liquid supply system for supplying liquid to a wall surface,
A pair of left and right rails that can be installed vertically along the wall surface;
A moving means attached to a lower end of the rail, and making the rail movable in a left-right direction along the wall surface;
A liquid supply unit attached to the rail and capable of moving up and down along the rail, and supplying liquid to the wall surface;
A liquid supply system, comprising: a bending prevention mechanism that prevents the rail from bending when installed along the wall surface. The bending prevention mechanism is
A wire stretched along the rail;
A wire fixing portion provided at a lower portion of the rail and fixing a lower end side of the wire;
A wire take-up portion that is provided on an upper portion of the rail and winds up the upper end side of the wire;
The liquid supply system according to claim 1, further comprising: a wire guide portion that is provided between an upper portion and a lower portion of the rail and guides the wire along the rail.   The liquid supply system according to claim 2, wherein the wire is stretched along the rail at a position farther from the wall surface than a central axis extending in the longitudinal direction of the rail.   The liquid supply system according to claim 3, wherein the rail is provided with a bending allowance portion that allows bending in a direction approaching the wall surface. The rail is formed by connecting a plurality of rail members,
The liquid supply system according to claim 4, wherein the deflection allowing portion is constituted by a connecting portion of the rail member.   The liquid supply system according to claim 1, wherein the rail is provided with a spacer that protrudes toward the wall surface and contacts the wall surface.   The liquid supply system according to claim 6, wherein a wheel that is rotatable around a rotation axis in a left-right direction perpendicular to a longitudinal direction of the rail is provided at a tip of the spacer.   The liquid supply system according to claim 6 or 7, wherein the spacer is retractable to the rail side. The bending prevention mechanism is
A plurality of protrusions protruding from the rail toward the wall surface;
The liquid supply system according to claim 1, further comprising: a locking portion that is provided on the wall surface and that locks the protruding portion. The locking portion is a hook whose tip is directed upward,
The protrusion has a recess on the lower surface,
The liquid supply system according to claim 9, wherein the concave portion of the protruding portion is locked to the hook of the locking portion.   The liquid supply system according to claim 1, further comprising a guide rail that is installed on the ground and guides the movement of the wall surface of the moving unit along the left-right direction. The moving means is a wheel;
The liquid supply system according to claim 11, wherein the guide rail is provided with a wheel shift prevention function for preventing a shift of the wheel in a direction approaching and separating from the wall surface.

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