Floor cleaning device

Abstract

To provide bottom board washing equipment that enables a device configuration to be miniaturized in the direction of extending a long side of a bottom board for being loaded on a move part.SOLUTION: Bottom board washing equipment 100 comprises a move part 6 which is loaded with a bottom board P having short and long sides P2 and P1 and which moves the loaded bottom board P in the short direction of extending a short side P2, and a washing water injection part 3 that emits a jet of washing water to the bottom board P in accordance with the movement of the bottom board P in the short direction by the move part 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sole cleaning device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, a floor plate cleaning device is known that sprays cleaning water onto a floor plate in accordance with the movement of the floor plate (see, for example, Patent Document 1).

[0003] The above-mentioned Patent Document 1 discloses an iron plate washing device that includes a roller conveyor on which a plate having a short side and a long side is placed and moved, and a washing machine that washes the plate moved by the roller conveyor. The above-mentioned roller conveyor is configured to move the plate with the long side of the plate aligned with the longitudinal direction, which is the moving direction of the roller conveyor. The washing machine is provided in an arch shape (tunnel shape) so as to surround the plate midway along the roller conveyor, and is configured to wash the plate as it passes by. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-80783 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the iron plate cleaning device described in the above Patent Document 1, the entire iron plate cannot be cleaned unless the iron plate passes from one end to the other end in the longitudinal direction of the long side of the iron plate through an arch-shaped (tunnel-shaped) cleaning machine provided in the middle of the roller conveyor. Therefore, the size in the longitudinal direction, which is the moving direction of the roller conveyor, needs to be at least twice the size of the long side of the iron plate, which causes a problem that the device configuration becomes large in the direction in which the long side of the iron plate placed on the roller conveyor extends.

[0006] The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide a floor plate cleaning device that can reduce the size of the device configuration in the direction in which the long side of the floor plate placed on the moving part extends.

[0007] In order to achieve the above object, a floor plate cleaning device according to one aspect of the present invention includes a moving unit on which a floor plate having a short side and a long side is placed and which moves the placed floor plate in a short side direction in which the short side extends, and a cleaning water spraying unit which sprays cleaning water onto the floor plate in accordance with the movement of the floor plate in the short side direction by the moving unit. The moving unit is configured to move the sole plate back and forth in the short side direction by turning back the movement of the sole plate, and to clean the sole plate with the cleaning water jetting unit during the forward movement and the return movement. .

[0008] In the floor plate cleaning device according to one aspect of the present invention, as described above, a cleaning water spraying unit is provided that sprays cleaning water onto the floor plate in conjunction with the movement of the floor plate in the short side direction by the moving unit. This allows the moving unit to move the floor plate in the short side direction of the floor plate during cleaning, rather than in the long side direction of the floor plate. Therefore, the floor plate can be cleaned by the cleaning water spraying unit without the need to form the moving unit in an elongated shape that is more than twice the long side of the floor plate in order to move the floor plate in the long side direction of the floor plate as in the conventional case. As a result, the device configuration can be made smaller in the direction in which the long side of the floor plate placed on the moving unit extends. The moving part is configured to move the floor plate back and forth in the short direction by turning back the movement of the floor plate, which makes it possible to repeatedly clean the floor plate and effectively remove dirt from the floor plate.

[0009] In the floor plate cleaning device according to the above aspect, the cleaning water jetting unit is preferably configured to be capable of simultaneously jetting cleaning water over substantially the entire area of ​​the long side of the floor plate in the longitudinal direction in which the long side of the floor plate extends. With this configuration, cleaning water can be jetted over substantially the entire area of ​​the long side of the floor plate perpendicular to the short side direction in which the floor plate moves, so that the entire floor plate can be cleaned by moving the floor plate in the short side direction.

[0011] In the floor board cleaning device according to the above aspect, the cleaning water jetting section preferably includes a first jetting section and a second jetting section that jets cleaning water onto a different part of the floor board from the first jetting section, and the first jetting section and the second jetting section are configured to jet cleaning water onto the floor board at different timings. With this configuration, when there is a device that generates water pressure to supply (pressure-feed) cleaning water to both the first jetting section and the second jetting section, cleaning water can be jetted at a higher water pressure by jetting cleaning water from the first jetting section and the second jetting section at different timings, compared to a case in which cleaning water is jetted simultaneously from the first jetting section and the second jetting section. As a result, dirt on the floor board can be effectively removed.

[0012] In the floor board cleaning device according to the above aspect, preferably, the device further comprises a floor board carry-in section that opens on one side in the short side direction so that the floor board can be carried in from one side in the short side direction and placed on the moving section, and the cleaning water jetting section is configured to jet cleaning water toward the other side in the short side direction that is the opposite side to the floor board carry-in section. With this configuration, the cleaning water jetting section can jet cleaning water toward the other side in the short side direction that is the opposite side to the floor board carry-in section, so that it is possible to effectively prevent the cleaning water from splashing toward a worker carrying in the floor board.

[0013] In this case, preferably, the device further includes a side wall portion provided on the other side of the moving portion in the short direction opposite the floor board carrying portion, and suppressing the washing water from scattering outside the floor board washing device main body. With this configuration, the side wall portion can suppress the scattering of dirt on the floor board together with the washing water to the outside of the floor board washing device main body.

[0014] In the configuration including the side wall portion, preferably, the side wall portion has a bent portion provided on the upper portion of the side wall portion and bent toward the cleaning water jetting portion side. With this configuration, the bent portion of the side plate portion can more effectively prevent the cleaning water and dirt from scattering from above the side plate portion to the outside of the floor plate cleaning device body.

[0015] In the above-mentioned configuration including the floor plate carrying-in section, the moving section is preferably configured to move the floor plate back and forth in the short-side direction by turning back the movement of the floor plate, and is configured to stop the movement of the floor plate on one side in the short-side direction, which is the side of the floor plate carrying-in section, so that the floor plate can be carried out from the floor plate carrying-in section. With this configuration, the movement of the floor plate can be stopped on one side in the short-side direction, which is the side of the floor plate carrying-in section, so that the floor plate can be carried in and out on the same side in the short-side direction. This improves the efficiency of the work of cleaning the floor plate.

[0016] In the floor board washing device according to the above aspect, preferably, the washing water jetting unit jets washing water toward the floor board, has a plurality of jetting ports arranged along the longitudinal direction of the long side of the floor board, and includes a washing pipe extending over substantially the entire area of ​​the long side of the floor board in the longitudinal direction, and a pump for pumping washing water to the washing pipe. With this configuration, the floor board can be washed by generating water pressure with the pump to jet washing water from the jetting ports of the washing pipe over substantially the entire area of ​​the long side of the floor board.

[0017] In this case, preferably, a plurality of cleaning pipes are provided so as to be arranged at a predetermined interval in the short side direction. With this configuration, a larger range in the short side direction of the floor plate can be cleaned at the same time compared to the case where only one cleaning pipe is provided. Therefore, the amount of movement of the floor plate in the short side direction can be reduced.

[0018] In the above-mentioned configuration in which the cleaning water jetting section includes a cleaning pipe, preferably, a plurality of cleaning pipes are provided so as to jet cleaning water onto the floor plate from both the upper side and the lower side of the floor plate. With this configuration, both the upper and lower sides of the floor plate can be washed without having to turn over the floor plate placed on the moving section. Effect of the Invention

[0019] According to the present invention, as described above, it is possible to provide an underwater electric pump that can reduce the size of the device configuration in the direction in which the long side of the base plate placed on the moving part extends. [Brief description of the drawings]

[0020] [Figure 1] 1 is a schematic diagram showing an overall configuration of a floor board cleaning device according to an embodiment; [Diagram 2] FIG. 2 is a side view of the floor plate cleaning device according to the embodiment. [Diagram 3] 4 is a diagram showing the relationship of drive timings of each part of the floor board cleaning device according to the embodiment. FIG. [Figure 4] FIG. 2 is a plan view of the floor plate cleaning device according to the embodiment. [Diagram 5] FIG. 2 is a front view of the floor plate cleaning device according to the embodiment. [Figure 6] 5A to 5C are diagrams for explaining the operation of the floor board cleaning device according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment will be described with reference to the drawings.

[0022] [Embodiment] (Configuration of floor cleaning device) 1 to 6, a description will be given of a floor board cleaning device 100 according to an embodiment. The floor board cleaning device 100 is a device for cleaning a floor board P by ejecting (spraying) cleaning water onto the floor board P while moving the floor board P.

[0023] In each drawing, the up-down direction of the floor board cleaning apparatus 100 is indicated by the Z direction, the upper side is indicated by the Z1 direction, and the lower side is indicated by the Z2 direction.

[0024] In each drawing, the longitudinal direction of the floor board cleaning apparatus 100 is indicated by the X direction, one side of the X direction is indicated by the X1 direction, and the other side is indicated by the X2 direction. The longitudinal direction of the floor board cleaning apparatus 100 is also the direction in which the long side P1 of the floor board P placed on the moving part 6 of the floor board cleaning apparatus 100 extends.

[0025] In each drawing, the short side direction of the floor board cleaning apparatus 100 is indicated by the Y direction, one side of the Y direction is indicated by the Y1 direction, and the other side is indicated by the Y2 direction. The short side direction of the floor board cleaning apparatus 100 is also the direction in which the short side P2 of the floor board P placed on the moving part 6 of the floor board cleaning apparatus 100 extends. The Y1 direction side is an example of "one side of the short side direction" in the claims. The Y2 direction side is an example of "the other side of the short side direction" in the claims.

[0026] The floor plate P shown in FIG. 1 is used, for example, as a foothold or a temporary passageway for workers at a construction site. That is, the floor plate P is a plate laid along the ground. The floor plate P can be made of metal, resin, wood, rubber, or the like. By laying the floor plate P on the ground, construction workers and trucks can be prevented from getting stuck in mud, etc. The floor plate P is generally managed by a leasing company, etc., and is collected and washed after the rental period has expired so that it can be used repeatedly.

[0027] Generally, the size of the floor board P is standardized. As an example, the size of the short side P2 x long side P1 includes "5m x 20m," "5m x 10m," "4m x 8m," "3m x 6m," etc. In this way, the surface of the floor board P that is perpendicular to the thickness direction is formed into a rectangle with the short side P2 and the long side P1.

[0028] As shown in Fig. 1, the floor board cleaning device 100 includes a pump 1, a water supply pipe 2 for the pump 1, a cleaning water spraying unit 3 that sprays cleaning water onto the floor board P, a water tank 4, and a water supply pipe 5 for the pump 1. The cleaning water spraying unit 3 includes an upper cleaning pipe 3a and a lower cleaning pipe 3b. The cleaning pipe 3a is an example of a "first spraying unit" in the claims. The cleaning pipe 3b is an example of a "second spraying unit" in the claims.

[0029] The cleaning pipe 3b is configured to spray cleaning water onto a different portion of the base plate P than the cleaning pipe 3a. In detail, the cleaning pipe 3a is configured to spray cleaning water onto an upper surface P3 of the base plate P from above the base plate P. The cleaning pipe 3b is configured to spray cleaning water onto a lower surface P4 of the base plate P from below the base plate P.

[0030] When the flow of cleaning water starts from pump 1, floor board cleaning device 100 is configured to circulate cleaning water in the following order: pump 1, water supply pipe 2, cleaning water jet unit 3, water tank 4, and water supply pipe 5. Floor board cleaning device 100 also has components (not shown) such as a drainage unit and a water supply unit for replacing the circulating cleaning water with new cleaning water.

[0031] The floor board cleaning device 100 also includes a moving section 6 on which the floor board P is placed, a floor board carry-in section 7, a drive start operation section 8 (see FIG. 4), and a side wall section 9. The moving section 6 is configured to move the placed floor board P in order to clean the floor board P with the cleaning water spraying section 3.

[0032] As shown in FIG. 2, the floor board carry-in section 7 opens on one side in the short side direction so that the floor board P can be carried in from one side in the short side direction (the Y1 direction side) and placed on the moving section 6. In other words, the floor board carry-in section 7 is an opening (opening) portion for carrying the floor board P into the floor board cleaning apparatus 100. The floor board carry-in section 7 is also used for carrying out the floor board P from the floor board cleaning apparatus 100. In other words, the floor board cleaning apparatus 100 is configured to carry in and carry out the floor board P from the same side in the short side direction. The carrying in and carrying out of the floor board P via the floor board carry-in section 7 is performed using a forklift F.

[0033] The floor board cleaning device 100 cleans the floor board P while moving the floor board P with the moving part 6, which prevents the cleaning water sprayed from the cleaning water spraying part 3 from continuously hitting the same position on the floor board P, thereby eliminating uneven cleaning of the floor board P. The floor board cleaning device 100 is a compact, unitized device, and is configured so that each part is assembled integrally to enable easy transportation.

[0034] The drive start operation unit 8 (see FIG. 4) is configured, for example, by a button, a lever, or a touch panel type operation unit, etc. When the drive start operation unit 8 is operated (ON) by an operator, the floor board cleaning device 100 is configured to start driving the floor board cleaning device 100 to clean the floor board P by adjusting the driving of each part of the floor board cleaning device 100 so that the driving timing of each part of the floor board cleaning device 100 is synchronized.

[0035] 3, when the drive start operating unit 8 is operated (ON), the floor board cleaning device 100 drives the pump 1 to spray cleaning water from the cleaning water spraying unit 3, and at approximately the same timing starts moving the floor board P by the moving unit 6. Note that the moving unit may start moving the floor board after a predetermined time has elapsed, such as one second, after the cleaning water spraying unit starts spraying cleaning water.

[0036] Then, the floor plate cleaning device 100 stops the pump 1 and the moving unit 6 at a predetermined timing when cleaning of the entire floor plate P moved by the moving unit 6 by the cleaning water jetting unit 3 is completed.

[0037] The adjustment of the timing of driving each part of the floor board cleaning apparatus 100 as described above is realized by the following configuration. As one example, the floor board cleaning apparatus is configured such that a common timer is provided for each part of the floor board cleaning apparatus, and the timing of driving each part is adjusted based on a signal from the timer. Alternatively, the floor board cleaning apparatus may be configured to include a control unit that controls the driving of each part of the floor board cleaning apparatus, and the timing of driving each part of the floor board cleaning apparatus may be adjusted by adjustment control by the control unit.

[0038] 1, the moving unit 6 of the floor board cleaning device 100 of this embodiment is configured to move the placed floor board P in the short side direction (Y direction) along which the short side P2 of the floor board P extends. The cleaning water spraying unit 3 of the floor board cleaning device 100 of this embodiment is configured to spray cleaning water onto the floor board P in synchronization with the movement of the floor board P in the short side direction (Y direction) by the moving unit 6. The cleaning water spraying unit 3 is configured not to move.

[0039] Moreover, the moving part 6 of the floor plate cleaning device 100 of this embodiment is configured to move the floor plate P back and forth in the short side direction (Y direction) by turning back the movement of the floor plate P.

[0040] 1, the floor plate P is placed at a predetermined position on one side of the short side of the moving unit 6 via the floor plate carry-in unit 7, and then the moving unit 6 starts moving the floor plate P to the other side of the short side. The moving unit 6 is configured to turn back the movement of the floor plate P at a predetermined position on the other side of the short side of the moving unit 6, causing the floor plate P to make one reciprocating motion on the moving unit 6 and then stop. Therefore, the movement of the floor plate P includes an outward movement in which the floor plate P moves toward the other side in the short side direction, and a return movement in which the floor plate P moves toward one side in the short side direction.

[0041] Referring again to FIG. 3, the cleaning pipes 3a and 3b are configured to spray cleaning water onto the base plate P at different times.

[0042] In detail, the cleaning pipe 3a is configured so that, during the forward movement, an upper valve body Va, which will be described later, is in an open state, so that cleaning water is sprayed from above the floor plate P onto an upper surface P3 of the floor plate P. At the same time, the cleaning pipe 3b is configured so that, during the forward movement, a lower valve body Vb, which will be described later, is in a closed state, so that cleaning water is not sprayed from below the floor plate P onto an underside P4 of the floor plate P.

[0043] Furthermore, the cleaning pipe 3a is configured such that, during the return movement, the upper valve body Va is in a closed state, so that cleaning water is not sprayed from above the base plate P onto the upper surface P3 of the base plate P. At the same time, the cleaning pipe 3b is configured such that, during the return movement, the lower valve body Vb is in an open state, so that cleaning water is sprayed from below the base plate P onto the lower surface P4 of the base plate P.

[0044] (Configuration of the "pump" of the floor cleaning device) The pump 1 shown in FIG. 1 is a submersible electric pump that is mainly installed underwater and used for pumping water from a water tank. In general, a submersible electric pump is designed for use in a relatively polluted water environment and is resistant to foreign matter being caught in it. The pump 1 of the floor plate cleaning device 100 is not installed underwater, and the pump 1 is surrounded by the outside air. A water supply pipe 2 is connected to the downstream side, which is the discharge port side, of the pump 1. A water supply pipe 5 is connected to the upstream side, which is the suction port side, of the pump 1. Note that instead of a submersible electric pump, a land pump or the like may be used as the pump of the floor plate cleaning device.

[0045] (Configuration of "Water Supply Piping" of Floor Plate Cleaning Equipment) The water supply pipe 2 is a conduit for supplying cleaning water from the pump 1 to the cleaning pipes 3 a and 3 b of the cleaning water jetting unit 3 .

[0046] The water supply pipe 2 is configured to branch into two, one above the other, toward the downstream side midway. The water supply pipe 2 that extends to the upper side after branching is connected to the upper cleaning pipe 3a. The water supply pipe 2 that extends to the lower side after branching is connected to the lower cleaning pipe 3b.

[0047] The water supply pipe 2 extending upward after branching and the water supply pipe 2 extending downward are provided with an upper valve body Va and a lower valve body Vb, respectively. The upper valve body Va and the lower valve body Vb are formed of, for example, solenoid valves.

[0048] The upper valve body Va is configured to switch between an open state in which cleaning water is supplied to the upper cleaning pipe 3a and a closed state in which cleaning water is not supplied to the upper cleaning pipe 3a. The lower valve body Vb is configured to switch between an open state in which cleaning water is supplied to the lower cleaning pipe 3b and a closed state in which cleaning water is not supplied to the lower cleaning pipe 3b.

[0049] The upper valve body Va is configured to maintain an open state while the moving part 6 moves the floor plate P to the other side in the short side direction (Y2 direction side) (during the forward movement) (see FIG. 3). On the other hand, the lower valve body Vb is configured to maintain a closed state while the moving part 6 moves the floor plate P to the other side in the short side direction (during the forward movement).

[0050] The upper valve body Va is configured to maintain a closed state while the moving part 6 moves the floor plate P to one side in the short side direction (Y1 direction side) (during the return movement). On the other hand, the lower valve body Vb is configured to maintain an open state while the moving part 6 moves the floor plate P to one side in the short side direction (during the return movement). In short, the floor plate cleaning device 100 is configured to clean only the upper surface P3 of the floor plate P on the outward path, and to clean only the lower surface P4 of the floor plate P on the return path.

[0051] (Configuration of the "upper cleaning piping" and "lower cleaning piping" of the floor plate cleaning device) As shown in Figures 2, 4 and 5, multiple cleaning pipes (3a and 3b) are provided (four in total, two on the top and two on the bottom) so as to spray cleaning water onto the floor plate P from both the upper and lower sides of the floor plate P.

[0052] The upper cleaning pipe 3a and the lower cleaning pipe 3b have the same structure, except that they are arranged symmetrically above and below the base plate P. For this reason, in the following, the upper cleaning pipe 3a will be described in detail, and a description of the lower cleaning pipe 3b will be omitted.

[0053] The upper cleaning pipe 3a is configured to be able to simultaneously spray cleaning water onto substantially the entire area of ​​the long side P1 of the floor plate P in the longitudinal direction (X direction) in which the long side P1 of the floor plate P extends.

[0054] In detail, the upper cleaning pipe 3a extends linearly in the longitudinal direction (X direction) so as to face substantially the entire long side P1 of the floor plate P. The upper cleaning pipe 3a is provided with a nozzle N having a plurality of jetting ports Na arranged in a line along the longitudinal direction in which the long side P1 of the floor plate P extends. The jetting ports Na are openings of the upper cleaning pipe 3a that jet cleaning water toward the floor plate P.

[0055] A plurality (two) of upper cleaning pipes 3a are provided so as to be aligned at a predetermined interval in the short side direction (Y direction).

[0056] Of the two cleaning pipes 3a, the cleaning pipe 3a on one side in the short side direction (Y1 direction side) is disposed near the center of the moving section 6 in the short side direction. Moreover, of the two cleaning pipes 3a, the cleaning pipe 3a on one side in the short side direction (Y1 direction side) is configured to clean at least an area larger than half of one side in the short side direction (Y1 direction side) of the floor plate P moved to the moving section 6.

[0057] The cleaning pipe 3a on the other short side (Y2 direction side) of the two cleaning pipes 3a is disposed on the other side (Y2 direction side) of the center of the moving section 6 in the short side direction and on the side (Y1 direction side) closer to the floor plate carry-in section 7 than the end of the other side (Y2 direction side) of the moving section 6. In addition, the cleaning pipe 3a on the other short side (Y2 direction side) of the two cleaning pipes 3a is configured to clean at least an area larger than half of the other short side (Y2 direction side) of the floor plate P moved to the moving section 6.

[0058] The cleaning pipes 3a are configured to spray cleaning water toward the other short side (Y2 direction side) opposite the floor plate carrying-in section 7. In other words, the cleaning pipes 3a are configured not to spray cleaning water toward the side where the workers, forklifts F, etc. who carry in and out the floor plates P are located, so that the cleaning water is not splashed toward the side where the workers, forklifts F, etc. are located.

[0059] (Configuration of the "side wall" of the floor cleaning device) The side wall 9 is configured to prevent cleaning water from splashing outside the floor plate cleaning device body. The side wall 9 is provided on the other short side (Y2 direction side) of the moving section 6, which is opposite the floor plate loading section 7. The upper end of the side wall 9 is located above the upper cleaning pipe 3a. The side wall 9 extends in the longitudinal direction (X direction) and the up-down direction (Z direction). In the longitudinal direction (X direction), the side wall 9 is larger than the upper cleaning pipe 3a and the lower cleaning pipe 3b.

[0060] The side wall portion 9 has a bent portion 9a provided on the upper portion of the side wall portion 9 and bent towards the cleaning water jetting portion 3 side.

[0061] (Configuration of the "moving part" of the floor cleaning device) 1, the moving unit 6 is configured to move the floor plate P back and forth in the short side direction (Y direction) by turning back the movement of the floor plate P. The moving unit 6 is also configured to stop the movement of the floor plate P on one side in the short side direction (Y1 direction side) that is the floor plate carry-in unit 7 side so that the floor plate P can be carried out from the floor plate carry-in unit 7.

[0062] The moving part 6 has a rotating shaft 60 on which multiple rollers 60a are installed, on which the sole plate P is placed from above, a bearing 61 that supports the rotating shaft 60, one motor 62, and a sprocket 63a and a timing chain 63b that transmit the driving force of the motor 62 to the rotating shaft 60. The rotating shaft 60 extends in the longitudinal direction (X direction).

[0063] The floor plate P is placed on the rollers 60a with the longitudinal direction in which the long side P1 extends and the lateral direction in which the short side P2 extends approximately coinciding with the longitudinal direction and lateral direction of the moving part 6 (floor plate cleaning device 100), respectively.

[0064] A plurality of (five) rotating shafts 60, each having a plurality of rollers 60a, are provided at a predetermined interval in the short side direction. All of the rotating shafts 60 are driven by a single motor 62 via a sprocket 63a and a timing chain 63b, so that their rotations are synchronized.

[0065] As an example, when the floor plate P is carried in, the floor plate P is placed on only some (three) of the multiple rotating shafts 60 on one side in the short side direction. The moving unit 6 is configured to move the floor plate P to the other side (Y2 direction side) in the short side direction (forward movement) by rotating the motor 62 in one rotation direction to rotate the multiple rotating shafts 60 in one rotation direction (R1 direction, see FIG. 6(B)). The moving unit 6 is also configured to move the floor plate P to one side (Y1 direction side) in the short side direction (return movement) by rotating the motor 62 in the other rotation direction to rotate the multiple rotating shafts 60 in the other rotation direction (R2 direction, see FIG. 6(D)).

[0066] The moving section 6 is configured to move the floor plate P in the return direction so that the floor plate P returns to the original position from which it was carried in, and then to stop.

[0067] The water tank 4 is configured to receive and store from below the cleaning water sprayed from the upper cleaning pipe 3a and the lower cleaning pipe 3b, and the foreign matter (dirt) removed from the base plate P. The water tank 4 overlaps at least the moving part 6 and the cleaning pipes 3a, 3b in a plan view, and is provided in an area larger than the moving part 6 and the cleaning pipes 3a, 3b.

[0068] (Configuration of "Water Supply Pipe" of Floor Cleaning Equipment) The water supply pipe 5 is a pipeline for sending cleaning water from the water tank 4 to the pump 1. The water supply pipe 5 is provided with a filter 5a that removes foreign matter and passes only the cleaning water, and a discharge conveyor 5b that discharges the foreign matter removed by the filter 5a to the outside.

[0069] (Washing operation of floor plate cleaning device) The cleaning operation of the floor board cleaning device 100 for cleaning the floor board P will be described with reference to FIGS. 6(A) to 6(E).

[0070] First, as shown in FIG. 6(A), a forklift F carries in a floor plate P via the floor plate carrying-in section 7, and the floor plate P is placed on the moving section 6.

[0071] Next, as shown in Fig. 6(B), the drive start operating unit 8 is operated (ON), so that the motor 62 is driven and the rotating shaft 60 of the moving unit 6 starts to rotate in one rotation direction (R1 direction). At substantially the same time that the rotating shaft 60 starts to rotate in one rotation direction (R1 direction), the upper valve body Va (see Fig. 1) opens, and the pump 1 (see Fig. 1) is driven to spray cleaning water from the upper cleaning pipe 3a. At this time, the lower valve body Vb (see Fig. 1) is maintained in a closed state. As the rotating shaft 60 rotates in one rotation direction (R1 direction), the sole plate P placed on the moving unit 6 moves to the other side in the short side direction (forward movement).

[0072] 6(C), when the floor plate P reaches a predetermined position S on the other side in the short side direction, the rotation of the motor 62 of the moving part 6 is reversed at the predetermined position S, and the movement of the floor plate P is turned back. Note that at the time (moment) when the floor plate P reaches the predetermined position S, the cleaning pipe 3a on the opposite side (Y1 direction side) from the side wall part 9 is in a state of cleaning the end part P5 on one side (Y1 direction side) in the short side direction of the floor plate P from above.

[0073] Next, as shown in Fig. 6(D), at approximately the same time that the rotating shaft 60 starts to rotate in the other rotation direction (R2 direction), the upper valve body Va closes and the lower valve body Vb opens, and cleaning water is sprayed from the lower cleaning pipe 3b. As the rotating shaft 60 rotates in the other rotation direction (R2 direction), the floor plate P placed on the moving part 6 moves to one side in the short side direction (returning movement). At the start of the return movement, the floor plate P is located at a predetermined position S. At the start of the return movement, the cleaning pipe 3b on the opposite side (Y1 direction side) of the side wall part 9 is in a state of cleaning the end P5 on one side in the short side direction of the floor plate P from below.

[0074] Next, as shown in FIG. 6(E), when the floor plate P reaches (returns to) the original position from which it started its outward movement on one side of the short side (Y1 direction), the motor 62 stops, and the return movement of the floor plate P by the moving unit 6 is stopped. At this time, the drive of the pump 1 is also stopped. Then, the floor plate P is carried out by the forklift F via the floor plate carrying-in unit 7. Depending on the degree of dirt, the floor plate P may be washed by operating the drive start operating unit 8 again (ON) and repeating each of the above operations, rather than carrying out the floor plate P by the forklift F.

[0075] (Effects of the embodiment) In this embodiment, the following effects can be obtained.

[0076] In this embodiment, as described above, a cleaning water spraying unit 3 is provided that sprays cleaning water onto the floor plate P in conjunction with the movement of the floor plate P in the short side direction by the moving unit 6. This allows the moving unit 6 to move the floor plate P in the short side direction of the floor plate P during cleaning, rather than in the longitudinal direction of the floor plate P. Therefore, the floor plate P can be cleaned by the cleaning water spraying unit 3 without forming the moving unit 6 in an elongated shape that is more than twice the length of the long side P1 of the floor plate P in order to move the floor plate P in the longitudinal direction of the floor plate P as in the conventional case. As a result, the device configuration can be made smaller in size in the direction in which the long side P1 of the floor plate P placed on the moving unit 6 extends.

[0077] In this embodiment, as described above, the cleaning water jetting unit 3 is configured to be able to simultaneously jet cleaning water over almost the entire area of ​​the long side P1 of the floor plate P in the longitudinal direction in which the long side P1 of the floor plate P extends. This allows cleaning water to be jetted over almost the entire area of ​​the long side P1 of the floor plate P that is perpendicular to the short side direction in which the floor plate P moves, so that the entire floor plate P can be washed by moving the floor plate P in the short side direction.

[0078] In this embodiment, as described above, the moving part 6 is configured to move the floor plate P back and forth in the short direction by turning back the movement of the floor plate P. This makes it possible to repeatedly clean the floor plate P, and dirt on the floor plate P can be effectively removed.

[0079] In this embodiment, as described above, the cleaning water jetting unit 3 includes the cleaning pipe 3a and the cleaning pipe 3b that jets cleaning water to a different part of the floor plate P from the cleaning pipe 3a, and the cleaning pipe 3a and the cleaning pipe 3b are configured to jet cleaning water to the floor plate P at different timings. As a result, when there is a device (pump 1) that supplies (pressure-feeds) cleaning water for jetting to both the cleaning pipe 3a and the cleaning pipe 3b that generate water pressure to jet cleaning water, compared to the case where cleaning water is jetted simultaneously from the cleaning pipe 3a and the cleaning pipe 3b, by jetting cleaning water from the cleaning pipe 3a and the cleaning pipe 3b at different timings, cleaning water can be jetted at a higher water pressure. As a result, dirt on the floor plate P can be effectively removed. In addition, compared to the case where cleaning water is sprayed from both the upper and lower cleaning pipes at a predetermined water pressure, spraying cleaning water from cleaning pipes 3a and 3b at a predetermined water pressure at different times allows the pump capacity of pump 1 to be smaller and the amount of cleaning water used to wash the floor board P to be reduced.

[0080] In this embodiment, as described above, the floor plate carry-in section 7 that opens on one side in the short side direction is further provided so that the floor plate P can be carried in from one side in the short side direction and placed on the moving section 6, and the cleaning water jetting section 3 is configured to jet cleaning water toward the other side in the short side direction that is the opposite side to the floor plate carry-in section 7. This allows the cleaning water jetting section 3 to jet cleaning water toward the other side in the short side direction that is the opposite side to the floor plate carry-in section 7, effectively preventing the cleaning water from splashing toward a worker carrying in the floor plate P.

[0081] As described above, this embodiment further includes a side wall portion 9 that is provided on the other side of the short side direction, which is opposite to the floor board carrying-in portion 7 from the moving portion 6, and that prevents the cleaning water from scattering outside the floor board cleaning device main body. This makes it possible for the side wall portion 9 to prevent dirt on the floor board P from scattering outside the floor board cleaning device main body together with the cleaning water.

[0082] In this embodiment, as described above, the side wall 9 has a bent portion 9a provided at the upper portion of the side wall 9 and bent toward the cleaning water jetting portion 3. This makes it possible for the bent portion 9a of the side wall 9 to more effectively prevent cleaning water and dirt from scattering from above the side wall 9 to the outside of the floor board cleaning device body.

[0083] In this embodiment, as described above, the moving section 6 is configured to move the floor plate P back and forth in the short side direction by turning back the movement of the floor plate P, and is configured to stop the movement of the floor plate P on one side in the short side direction, which is the floor plate carry-in section 7 side, so that the floor plate P can be carried out from the floor plate carry-in section 7. This makes it possible to stop the movement of the floor plate P on one side in the short side direction, which is the floor plate carry-in section 7 side, so that the floor plate P can be carried in and out on the same side in the short side direction. This makes it possible to improve the work efficiency of cleaning the floor plate P.

[0084] In this embodiment, as described above, the cleaning water jetting unit 3 jets cleaning water toward the floor plate P, has a plurality of jetting ports Na arranged in a line along the longitudinal direction in which the long side P1 of the floor plate P extends, and includes cleaning pipes 3a, 3b extending in the longitudinal direction over substantially the entire area of ​​the long side P1 of the floor plate P, and a pump 1 that pressure-feeds cleaning water to the cleaning pipes 3a, 3b. This allows the pump 1 to generate water pressure and spray cleaning water from the jetting ports Na of the cleaning pipes 3a, 3b over substantially the entire area of ​​the long side P1 of the floor plate P, thereby cleaning the floor plate P.

[0085] In this embodiment, as described above, the upper cleaning pipe 3a and the lower cleaning pipe 3b are provided in plurality so as to be arranged at a predetermined interval in the short side direction. This allows a larger range in the short side direction of the floor plate P to be cleaned at the same time compared to the case where there is only one cleaning pipe. Therefore, the amount of movement of the floor plate P in the short side direction can be reduced.

[0086] In this embodiment, as described above, a plurality of cleaning pipes 3a, 3b are provided so as to spray cleaning water onto the floor plate P from both the upper side and the lower side of the floor plate P. This makes it possible to clean both the upper and lower surfaces of the floor plate P without having to turn over the floor plate P placed on the moving part 6.

[0087] (Modification) The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is indicated by the claims, not by the description of the embodiments above, and further includes all modifications (variations) within the meaning and scope of the claims.

[0088] For example, in the above embodiment, the moving part is configured by a rotating shaft on which rollers are installed, but the present invention is not limited to this. In the present invention, the moving part may be configured by a belt conveyor or the like.

[0089] In the above embodiment, an example is shown in which five rotation shafts on which the rollers of the moving part are installed are provided, but the present invention is not limited to this. In the present invention, the number of rotation shafts on which the rollers of the moving part are installed may be different from five.

[0090] In the above embodiment, the floor plates are carried in and out by a forklift, but the present invention is not limited to this. In the present invention, the floor plates may be carried in and out by a crane or the like.

[0091] In the above embodiment, the side wall portion is provided only on the other side in the short direction of the moving part, but the present invention is not limited to this. In the present invention, the side wall portion may be provided on one side or both sides in the longitudinal direction of the moving part.

[0092] In the above embodiment, the example in which two upper (lower) cleaning pipes are arranged side by side in the short side direction is shown, but the present invention is not limited to this. In the present invention, only one upper (lower) cleaning pipe may be arranged side by side in the short side direction, or three or more upper (lower) cleaning pipes may be arranged side by side in the short side direction.

[0093] In the above embodiment, the number of cleaning pipes on the upper side (2) is equal to the number of cleaning pipes on the lower side (2), but the present invention is not limited to this. In the present invention, the number of cleaning pipes on the upper side (2) may be different from the number of cleaning pipes on the lower side (2).

[0094] In the above embodiment, the upper (lower) cleaning pipe is configured to extend in the longitudinal direction, but the present invention is not limited to this. In the present invention, the upper (lower) cleaning pipe may be configured to extend in the lateral direction.

[0095] In the above embodiment, the upper cleaning pipe and the lower cleaning pipe are configured to spray cleaning water at different timings, but the present invention is not limited to this. In the present invention, the upper cleaning pipe and the lower cleaning pipe may be configured to spray cleaning water at the same timing.

[0096] In the above embodiment, an example is shown in which cleaning water is sprayed only from the upper cleaning pipe during the forward movement, and only from the lower cleaning pipe during the return movement, but the present invention is not limited to this. In the present invention, cleaning water may be sprayed only from the lower cleaning pipe during the forward movement, and only from the upper cleaning pipe during the return movement. In addition, regardless of the forward and return movements of the sole plate, the spraying of cleaning water from the upper cleaning pipe and the spraying of cleaning water from the lower cleaning pipe may be alternated every predetermined time.

[0097] In the above embodiment, the moving unit moves the floor plate back and forth in the short-side direction only once based on one operation of the drive start operating unit, but the present invention is not limited to this. In the present invention, the moving unit may move the floor plate back and forth in the short-side direction two or more times based on one operation of the drive start operating unit.

[0098] In the above embodiment, the floor plate is moved back and forth in the short side direction by the moving unit, but the present invention is not limited to this. In the present invention, the floor plate does not have to be moved back and forth in the short side direction by the moving unit. That is, the floor plate may be carried in from one side in the short side direction of the floor plate cleaning device and placed on the moving unit, and the floor plate may be moved to the other side in the short side direction by the moving unit, and then the floor plate may be carried out from the other side in the short side direction of the floor plate cleaning device.

[0099] In addition, in the above embodiment, an example in which only one pump is provided is shown, but the present invention is not limited to this. In the present invention, a plurality of pumps may be provided.

[0100] Furthermore, the floor board cleaning device of the above embodiment may further include a brush for assisting cleaning of the floor board, in addition to the configuration of the floor board cleaning device of the above embodiment.

[0101] In addition, in addition to the configuration of the floor board cleaning device of the above embodiment, the floor board cleaning device of the above embodiment may further include a PH sensor that measures the PH value of the circulating cleaning water, and a PH neutralization device that adjusts the PH value of the cleaning water based on the measurement value of the PH sensor. [Explanation of symbols]

[0102] 1 Pump 3. Cleaning water injection section 3a Cleaning pipe (first jet section) 3b Cleaning pipe (second injection part) 6. Moving Part 7. Floor plate loading area 9 Side wall 9a Bend part 100 Floor cleaning device Na injection port P floor plate P1 Long side P2 Short side

Claims

1. a moving section on which a floor plate having a short side and a long side is placed and which moves the placed floor plate in a short direction in which the short side extends; a cleaning water jetting unit that jets cleaning water onto the floor plate in synchronization with the movement of the floor plate in the short side direction by the moving unit, The moving section is configured to move the floor plate back and forth in the short direction by reversing the movement of the floor plate, and to clean the floor plate with the cleaning water spraying section during the forward and return movements.

2. The floor plate cleaning device according to claim 1 , wherein the cleaning water jetting section is configured to jet the cleaning water simultaneously over substantially the entire area of ​​the long side of the floor plate in a longitudinal direction in which the long side of the floor plate extends.

3. The cleaning water jetting unit includes a first jetting unit and a second jetting unit that jets the cleaning water onto a portion of the sole plate different from that of the first jetting unit, The floor board cleaning device according to claim 1 or 2, wherein the first spraying section and the second spraying section are configured to spray the cleaning water onto the floor board at different timings.

4. The floor plate loading section further includes a floor plate loading section that opens to one side in the short side direction so that the floor plate can be loaded from the one side in the short side direction and placed on the moving section, The floor board cleaning device according to any one of claims 1 to 3, wherein the cleaning water spraying section is configured to spray the cleaning water toward the other side in the short direction opposite the floor board loading section.

5. The floor board cleaning device as described in claim 4, further comprising a side wall portion provided on the other side of the short side direction, which is opposite the floor board loading section from the moving section, and which prevents the cleaning water from splashing outside the floor board cleaning device main body.

6. The floor board cleaning device according to claim 5 , wherein the side wall portion has a bent portion provided at an upper portion of the side wall portion and bent toward the cleaning water jetting portion.

7. The floor plate cleaning device of any one of claims 4 to 6, wherein the moving section is configured to move the floor plate back and forth in the short direction by reversing the movement of the floor plate, and is configured to stop the movement of the floor plate on the one side of the short direction that is the side of the floor plate loading section so that the floor plate can be transported out from the floor plate loading section.

8. The cleaning water jetting unit includes: a cleaning pipe that sprays the cleaning water toward the floor plate, has a plurality of nozzles arranged along the longitudinal direction of the long side of the floor plate, and extends along substantially the entire area of ​​the long side of the floor plate in the longitudinal direction; The floor plate cleaning device according to any one of claims 1 to 7, further comprising: a pump for pressure-feeding the cleaning water to the cleaning pipe.

9. The floor board cleaning device according to claim 8 , wherein a plurality of the cleaning pipes are provided so as to be aligned at predetermined intervals in the short side direction.

10. 10. The floor plate cleaning device according to claim 8, wherein a plurality of the cleaning pipes are provided so as to spray the cleaning water onto the floor plate from both an upper side and a lower side of the floor plate.

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