JP4441378B2 - Car wash machine - Google Patents

Description

  The present invention relates to a car wash machine, in particular, a gate-type car wash machine body, a winding shaft that is rotatably supported by the car wash machine body, and the car wash machine that is wound around the take-up shaft and supported to be lowered and lowered. The present invention relates to a car wash machine including a flexible shield that can open and close an opening of a main body and a drive device that rotationally drives a winding shaft.

  As said car wash machine, what was described in the following patent document 1, for example is known.

In the device described in Patent Document 1, when the drive device is driven to rotate in one direction, the shield is drawn out from the winding shaft, the shield is lowered by its own weight, and the drive device is rotated in the other direction. When driven, the shield is wound around the winding shaft and rises.
Japanese Patent Laid-Open No. 3-153446

  In the above-described Patent Document 1, when the motor is driven to rotate in one direction so that the winding shaft rotates in the direction in which the shield is drawn out, for some reason (for example, the shield is beaten by a strong wind). The lower end of the shield cannot be lowered smoothly due to being strongly pressed against the guide rail or a foreign object adheres to the guide rail, etc., and the shield may be wound on the winding shaft (hereinafter referred to as this) The state is called “reverse winding”).

  Then, when the winding shaft is rotated in one direction in the direction in which the shield is fed out in this way, if reverse winding occurs, even if the lower end of the shield rises to the rising limit, Since the rotational drive to the one side continues, there is a problem that a large tensile force acts on the shield and damages the shield and the drive system of the winding shaft.

  In the conventional car wash machine, when the motor is driven to rotate in the other direction and the take-up shaft is taking up the shield (hereinafter, this state is referred to as “normal take-up”), the lower end of the shield is set to the upper limit. Since the rotational drive of the motor to the other side is automatically stopped as it rises, the above problem does not occur originally.

  The present invention has been proposed in view of the above, and an object of the present invention is to provide a car wash machine that can solve the above-described problem when reverse winding occurs.

  In order to achieve the above object, the invention of claim 1 includes a portal-type car wash machine main body, a winding shaft rotatably supported by the car wash machine main body, and is wound around the take-up shaft and can be lifted and lowered. The shield includes at least a flexible shield that is supported and capable of opening and closing the opening of the car wash machine main body, and a drive device that rotationally drives the take-up shaft, and the drive device is rotationally driven in one direction to provide the shield. In the car wash machine in which the shield is wound up by being driven to rotate in the other direction, the shield is wound around the winding shaft when the drive device is driven to rotate in the one direction. And a control device for stopping the one rotational drive of the driving device based on the detection of the reverse winding detection device.

  According to a second aspect of the present invention, there is provided a gate-type car wash machine body, a take-up shaft rotatably supported by the car wash machine body, and the car wash machine that is wound around the take-up shaft and supported vertically by being lowered and lowered. A flexible shield that can open and close the opening of the main body, a drive device that rotationally drives the winding shaft, and a normal upper limit position detection that detects that the lower end of the shield has reached a predetermined normal upper limit position Means for rotating the drive device in one direction to feed out the shield, and rotating the drive device in the other direction so as to wind up the shield. At the time of winding, the lower end of the shield is predetermined When the normal upper limit position is reached, the lower end of the shield is lower than the normal upper limit position in the car wash machine in which the other rotational drive of the drive device is automatically stopped based on the detection of the normal upper limit position detecting means. The upper limit of reverse winding Reverse winding upper limit position detecting means for detecting that the position has reached the position, and when the lower end of the shield reaches the reverse winding upper limit position while the drive device is driven to rotate in the one direction, And a control device for stopping the one rotational drive of the drive device based on the detection by the take-up upper limit position detecting means.

  According to a third aspect of the present invention, in addition to the feature of the second aspect, the normal upper limit position detecting means is provided at a switch provided in the car wash machine main body and a lower end of the shield, An actuator for operating the switch when the normal upper limit position is reached, and the reverse winding upper limit position detecting means is provided at the lower end of the shield so as to detect the vehicle body surface of the vehicle to be cleaned. It is provided with a detecting means and a detected member that is provided in the car wash machine body and is detected by the vehicle body detecting means when the lower end of the shield reaches the reverse winding upper limit position. .

  According to a fourth aspect of the present invention, there is provided a gate-type car wash machine main body, a winding shaft rotatably supported by the car wash machine main body, and the car wash machine that is wound around the take-up shaft and supported vertically by being lowered and lowered. A flexible shield that can open and close the opening of the main body, a drive device that rotationally drives the winding shaft, and a normal upper limit position detection that detects that the lower end of the shield has reached a predetermined normal upper limit position Means for rotating the drive device in one direction to feed out the shield, and rotating the drive device in the other direction so as to wind up the shield. At the time of winding, the lower end of the shield is predetermined When the normal upper limit position is reached, the reverse winding of the winding shaft is stored in the car wash machine that automatically stops the other rotational drive of the driving device based on the detection by the normal upper limit position detecting means. Reverse winding storage means for, When it is detected that the lower end of the shield has reached the normal upper limit position when the drive device is rotationally driven to the one side, the drive unit is configured to detect the upper limit position detection unit based on the detection by the normal upper limit position detection unit. One rotation driving is stopped and the reverse winding storage means stores reverse winding, and when the reverse winding storage means stores reverse winding, the one of the drive devices When the reverse winding storage means does not store reverse winding, the controller that allows the one rotational drive of the driving device and the reverse winding storage means And erasing means capable of erasing the stored reverse winding.

  Further, the invention of claim 5 has, in addition to the features of claim 1, 2, 3 or 4, further comprising an ascending operation input means capable of arbitrarily inputting an operation, and the drive device stops the one rotational drive. The driving device is driven to rotate to the other side for a predetermined time each time there is an input from the ascending operation input means. The invention of claim 6 is characterized in that, in addition to the features of claim 5, When the drive device stops the one rotational drive, the drive device is held for a predetermined time each time there is an input by the drop operation input device. Only one of them is rotationally driven.

  According to the present invention, when the winding shaft is rotationally driven in one direction in the direction in which the shield is extended, when the reverse winding occurs, the rotational driving of the motor to the one is automatically stopped. Since the reverse winding is continued, it is possible to prevent a large tensile force from acting on the shield and effectively prevent the shield and the drive system of the winding shaft from being damaged. .

  In particular, according to the inventions of claims 2 and 3, when the winding shaft is driven to rotate in one direction in the direction in which the shield is extended, the lower end of the shield is reversely wound above the normal upper limit position. When it is detected that the upper limit position has been reached, the rotational drive of the motor to one side is automatically stopped, so reverse winding occurs when the lower end of the shield is at the normal upper limit position or immediately above it. However, the reverse winding state can be accurately detected based on the reverse winding upper limit position set above the normal upper limit position.

  In particular, according to the invention of claim 3, the reverse winding upper limit position detecting means is provided at the lower end of the shielding body and is provided at the car wash machine main body and the car body detecting means capable of detecting the car body surface of the vehicle to be cleaned. And a detection member that is detected by the vehicle body detection means when the lower end of the shield reaches the reverse winding upper limit position. Therefore, the vehicle body detection means that can detect the vehicle body surface of the vehicle to be cleaned is used for shielding. It is possible to accurately detect that the lower end of the body has reached the reverse winding upper limit position.

  In particular, according to the invention of claim 4, it is used to detect that the lower end of the shield reaches a predetermined normal upper limit position during normal winding and to automatically stop the other rotational drive of the drive device. Since the normal upper limit position detection means is also used as the reverse winding detection means, the structure can be simplified accordingly. In addition, when it is detected that the lower end of the shield has reached the normal upper limit position while the drive device is rotationally driven to one side in order to extend the shield, the reverse rotation of the drive device is stopped. When the reverse take-up storage means stores reverse take-up, one rotational drive of the drive device is prohibited, and the reverse take-up storage means When the reverse winding is not memorized, the one rotational drive of the driving device is allowed. Therefore, even if the normal upper limit position detecting means is also used as the reverse winding detecting means, the normal state (that is, reverse winding) In a state in which the removal is not stored), even from a position where the lower end of the shield is at the normal upper limit position, the motor can be driven to rotate in one direction and the shield can be extended.

  In particular, according to the invention of claim 5, when the drive device stops one rotational drive, the drive device is rotationally driven to the other for a predetermined time each time there is an input by the raising operation input means. At the time of reverse winding recovery work, the drive device is driven to rise for a predetermined time each time there is an input from the raising operation input means, thereby preventing the lower end of the shield from exceeding the rising limit all at once.

  In particular, according to the invention of claim 6, when the drive device stops one rotational drive, the drive device is rotationally driven to one side for a predetermined time each time there is an input by the lowering operation input means. Even if the lowering operation input means is mistakenly performed during the reverse winding recovery work, the drive device is driven downward for a predetermined time each time there is an input from the lowering operation input means, thereby raising the lower end of the shield at a stretch. It is possible to prevent exceeding the limit.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below based on examples of the present invention illustrated in the accompanying drawings.

  1 to 8 show a first embodiment of the present invention, in which FIG. 1 is a schematic side view of a car wash machine, and FIG. 2 is a schematic front view of the car wash machine (see arrow 2 in FIG. 1). FIG. 3 is an enlarged view of the main part showing the relational position between the lower end of the shield and the position detecting means, in which (A) shows the state where the lower end of the shield has reached the normal upper limit position, and (B) (C) shows a state where the reverse winding upper limit stop position is reached, and (C) shows a state where the reverse winding upper limit position is reached. 4 and 5 are first and second partial views of a flowchart showing an example of automatic lifting control of the shield, FIG. 6 is a subroutine of reverse winding detection (step S4) in the flowchart, and FIG. FIG. 8 is a flowchart illustrating an example of manual lifting control of the shield. 9 to 11 show a second embodiment of the present invention. FIG. 9 is an enlarged view of a main part corresponding to FIG. 3, FIG. 10 is a subroutine corresponding to FIG. 6, and FIG. It is. 12 to 14 show a third embodiment of the present invention. FIG. 12 is an enlarged view of a main part corresponding to FIG. 3, FIG. 13 is a subroutine corresponding to FIG. 6, and FIG. It is a flowchart.

  8 to 11 show the main part of the second embodiment. FIG. 8 is a sectional view corresponding to the lower half of FIG. 3, FIG. 9 is a sectional view taken along line 9-9 in FIG. 10 is an enlarged cross-sectional view taken along line 10-10 of FIG. 9, and FIG. 11 is an explanatory view corresponding to FIG. 7, schematically showing the relative positional relationship between the limiting member and the stopped member.

  First, a first embodiment will be described with reference to FIGS.

  The car wash machine main body 1 of the car wash machine includes a front and rear open gate frame 2 that can straddle the automobile V as a vehicle to be cleaned, and a pair of left and right front wheels 3 provided at the lower left and right sides of the gate frame 2 respectively. , 3 and a pair of left and right rear wheels 4, 4 travel on a pair of left and right traveling rails 5, 5 extending along the longitudinal direction of the vehicle. Traveling motors 6, 6 provided on the portal frame 2 are connected to the front wheels 3, 3, and the traveling motors 6, 6 can be driven to reciprocate the portal frame 2.

  The portal frame 2 includes a top brush 7 as a cleaning means capable of brushing and cleaning the upper surface of the vehicle body, a pair of left and right side brushes 8 and 8 as cleaning means capable of brushing and cleaning the side surface of the vehicle body, and an upper surface of the vehicle body. A top nozzle 9 as a cleaning means that can inject drying air onto the vehicle body, a pair of left and right side nozzles 10 and 10 as cleaning means that can inject drying air onto the side surface of the vehicle body, and a cleaning water injection onto the vehicle body surface of the vehicle. A washing water injection device 11 as a cleaning means that can be used, and a rinsing water injection device 12 as a cleaning means that can inject rinsing water onto the vehicle body surface of the vehicle are provided.

  A front opening 13 surrounded by vertical lines 14 and 15 and a horizontal line 16 in FIG. 2 is provided on the front surface 13 of the portal frame 2, and an opening / closing device 18 that can open and close the front opening 17 is provided in the front opening 17. Provided.

  Next, the structure of the opening / closing device 18 will be described.

  A horizontal support shaft 19 extending in the left-right direction is rotatably provided above the front opening 17 of the portal frame 2, and a hollow cylindrical take-up shaft 20 is integrally attached to the support shaft 19. It is done. The upper end of a movable curtain 21 as a shield is fixed to the winding shaft 20. A motor 22 provided on the portal frame 2 is linked to the support shaft 19 via a transmission mechanism. The transmission mechanism is fixed to the support shaft 19 and a drive sprocket 23 fixed to the motor 22 in the illustrated example. The chain transmission mechanism includes a driven sprocket 24 and a chain 25 wound between the sprockets 23 and 24. When the motor 22 is driven in the forward direction (in the direction of arrow F shown in FIG. 3A, hereinafter simply referred to as upward driving), the movable curtain 21 can be wound around the winding shaft 20 in the normal state. In addition, when the motor 22 is driven in the reverse direction (drive in the direction of arrow R shown in FIG. 3A, hereinafter simply referred to as downward drive), the movable curtain 21 is set to be fed out from the take-up shaft 20 in the normal state. Has been.

  The square pipe 26 is fixed to the lower end portion of the movable curtain 21 so as to be able to move up and down integrally with the lower end portion, and the movable curtain 21 is suspended by the weight of the square pipe 26.

  A pair of left and right guide rails 27, 27 are fixed to the portal frame 2 in the left and right sides of the front opening 17 and extending in the vertical direction. 27, the left and right side edges 21A, 21A of the movable curtain 21 and the left and right side edges 26A, 26A of the square pipe 26 are respectively inserted to restrict movement in the front-rear direction.

  Guide rollers (not shown) are provided on the left and right side edges 26A, 26A of the square pipe 26, and the square pipe 26 moves up and down smoothly when the guide rollers roll in the guide rails 27, 27. .

  A pair of left and right T-shaped support arms 28 projecting downward are attached to the lower sides of both ends of the square pipe 26 on the inner side of the pair of left and right guide rails 27, 27, respectively. One support arm 28 is provided with a pair of front and rear photoelectric sensors 29 and 30 arranged at intervals in the front and rear direction, and the other support arm 28 is provided with each light receiver of the photoelectric sensors 29 and 30. Is provided.

  An upper limit switch 31 is provided on the upper part of the portal frame 2. The upper limit switch 31 is constituted by, for example, a conventionally known proximity switch, and is operated by an operator 32 provided on the square pipe 26 to detect that the square pipe 26 has reached a normal upper limit position described later.

  A first blocking plate 33 that blocks the optical axis of one of the front and rear photoelectric sensors 30 is disposed below the one guide rail 27, and an optical axis of the other front and rear photoelectric sensor 29 is disposed above the guide rail 27. A second blocking plate 34 for blocking the above is provided. The first blocking plate 33 blocks the optical axis of one of the front and rear photoelectric sensors 30 when the square pipe 26 reaches the lower limit position.

  When the motor 22 is driven up and the movable curtain 21 is wound up, the rising square pipe 26 reaches a position in the vicinity of the position shown in FIG. When the operating state is changed by the operating element 32 (the position of the square pipe 26 at this time is hereinafter simply referred to as a normal upper limit position), a control device 36, which will be described later, controls the motor 22 to stop the ascending drive. It is configured. When the driving of the motor 22 is stopped, the square pipe 26 rises accordingly, as shown in FIG. 3A, so that the second blocking plate 34 does not block the optical axis of the photoelectric sensor 29. (Hereinafter, the position where the square pipe 26 has stopped is referred to as a normal upper limit stop position. The normal upper limit stop position is slightly above the normal upper limit position by the braking distance of the square pipe 26.) ).

  In addition, when the motor 22 is driven downward, the square pipe 26 is lifted from below from the position shown in FIG. 3B due to reverse winding, and is shown in FIG. 3B. And when the optical axis of the photoelectric sensor 29 is changed from a state not blocked by the second blocking plate 34 to a state blocked by the blocking plate 34 (the position of the square pipe 26 at this time is The position of the second blocking plate 34 and the vertical length of the operating element 32 are set so that the upper limit switch 31 is operated by the operating element 32. Then, when the motor 22 is driven downward, when the optical axis of the photoelectric sensor 29 is blocked by the second blocking plate 34 and the upper limit switch 31 is in operation, the downward drive of the motor 22 is stopped. In order to perform the control as described above, a control device 36 described later is configured.

  In addition, when the motor 22 is driven downward, if the square pipe 26 reaches the reverse winding upper limit position and the downward drive of the motor 22 is stopped, the square pipe 26 is lifted by the braking distance Y1 and stopped (hereinafter referred to as “downward driving”). The position of the square pipe 26 when stopped is referred to as a reverse winding upper limit stop position). The square pipe 26 is further raised by a predetermined distance Y2 (about 60 millimeters in this embodiment) from the reverse winding upper limit stop position. In other words, the shape and relative position of the second blocking plate 34 and the support arm 28 are set so that the position that is further raised by the predetermined distance Y2 from the reverse winding upper limit stop position becomes the rising limit. Yes. Then, at the rising limit where the square pipe 26 is further raised by the predetermined distance Y2 from the reverse winding upper limit stop position, as shown in FIG. 3C (FIG. 3C, when the motor 22 is driven downward, the corner pipe 26 (Showing the case of reverse winding in which the pipe 26 is raised) While the support arm 28 and the photoelectric sensor 29 are not in contact with the second blocking plate 34 and are raised by a predetermined distance Y2, the optical axis of the photoelectric sensor 29 is the second The upper limit switch 31 is in a state of being blocked by the blocking plate 34 and operating.

  A control panel 35 is provided on the front surface of the portal frame 2, and a control device 36 including a microcomputer for controlling the car wash machine is disposed on the control panel 35. The control device 36 includes a timer A, a timer B, a timer C, and a timer D, and further includes a travel position detection means E that detects a travel position L of the car wash machine body 1 from the start position.

  Further, on the front surface of the control panel 35, a rising key 37 for manually driving the motor 22 to arbitrarily lift, a lowering key 38 for manually driving the motor 22 to arbitrarily lower, and a start key 39 for starting car washing. , Reverse winding display lamp 40 (an example of reverse winding display means), reverse winding cancellation lamp 41 (an example of reverse winding cancellation display means), curtain key 42 used for reverse winding recovery operation described later, emergency stop key 43 is provided.

Next, the operation of the first embodiment will be described with reference to FIGS.
[ I-1] Description of Car Washing Assumption As shown in FIG. 7, the car wash machine main body 1 is stopped at the start position at the left end of the traveling rails 5 and 5, and the car V is the car wash machine main body. 1 is stopped between the traveling rails 5 and 5 in front of the vehicle 1, and the upper limit switch 31 is operated by the actuator 32 as shown in FIG. 3A, and the optical axis of the photoelectric sensor 29 is set to the second level. The blocking plate 34 is not blocked (the square pipe 26 is in the normal upper limit stop position (shown in FIG. 7 (A), FIG. 3 (A))), and the movable curtain 21 is in the winding shaft. It is assumed that the car wash starts with the timer 20 and the timer B inoperative in the normal state.

As the car wash machine main body 1 travels from the start position, the top brush 7, the side brushes 8 and 8, the washing water injection device 11, and the rinsing water injection device 12 are operated to perform the washing work. After passing the rear end of the automobile V, the top brush 7, the side brushes 8, 8, the washing water injection device 11 and the rinsing water injection device 12 are deactivated, and the car washing machine main body 1 is returned. Air is sprayed from the top nozzle 9 and the side nozzles 10 and 10 to perform the drying operation. When the car wash machine main body 1 returns to the start position, the injection of air from the top nozzle 9 and the side nozzles 10 and 10 is stopped to wash the car. End. In such a series of washing processes, the movable curtain 21 is controlled to descend along a locus as shown in FIG. 7 when the car wash machine body 1 travels, and when the car wash machine body 1 goes back, the movable curtain 21 moves back. 21 is an example of control when the lower pipe 21 is not controlled, that is, the square pipe 26 is held in the normal upper limit stop position (or the reverse winding upper limit stop position when reverse winding occurs). Explained.

<1> In step S1 in the flowcharts of FIGS. 4 and 5, it is determined whether or not the upper limit switch 31 is operating (ON). And when it is operating, it progresses to Step S2, and when it is not operating, it progresses to Step S29.

  In step S2, the car wash machine body 1 starts to travel, and then proceeds to step S3. In addition, when the car wash machine body 1 is traveling, the traveling is continued.

  Next, in step S3, it is determined whether or not the traveling position detection means E has detected a predetermined traveling position L1 or more. If not detected, the process returns to step S1, and if detected, the process proceeds to step S4.

  In step S4, reverse winding detection specifically shown in the subroutine of FIG. 6 is performed, and the process proceeds to step S5.

  In step S5, it is determined whether or not reverse winding is stored. If yes, go to Step S11, otherwise go to Step S6.

  In step S6, it is determined whether at least one of the photoelectric sensors 29 and 30 is shielded from light. When the light is shielded, the process proceeds to step S13. When the light is not shielded, the process proceeds to step S7.

  In step S7, it is determined whether or not the timer A is operating. When it is in operation, the process proceeds to step S13, and when it is not in operation, the process proceeds to step S8.

  In step S8, it is determined whether or not the motor 22 is driving downward (hereinafter referred to as downward driving). When it is in the downward drive, the process proceeds to step S11, and when it is not in the downward drive, the process proceeds to step S9.

  In step S9, it is determined whether or not the timer B is operating. When not operating, the process proceeds to step S12, and when operating, the process proceeds to step S10.

  In step S10, it is determined whether or not the timer B detects a predetermined time Tb or longer. When it is detected, the process proceeds to step S12. When it is not detected, the process proceeds to step S11.

  In step S11, it is determined whether or not the cleaning by the outward travel has been completed. When finished, the process proceeds to step S20, and when not finished, the process returns to step S4.

  In step S12, the motor 22 starts to be lowered. If the timer B is in operation, the timer B is deactivated, and the process proceeds to step S11.

  In step S13, it is determined whether the upper limit switch 31 is operating. And when it is operating, it progresses to Step S18, and when it is not operating, it progresses to Step S14.

  In step S14, it is determined whether or not the motor 22 is in the upward drive (hereinafter referred to as the upward drive). Then, when the ascending drive is being performed, the process proceeds to step S15, and when the ascending drive is not being performed, the process proceeds to step S16.

  In step S16, the downward driving of the motor 22 is stopped and then the upward driving is started. Further, the timer A is initialized and then the operation of the timer A is started. Then, the process proceeds to step S15.

  In step S15, it is determined whether or not the timer A detects a predetermined time Ta or more. If not detected, the process proceeds to step S11. If detected, the process proceeds to step S17.

  In step S17, when the motor 22 is in the ascending drive, the ascending drive is stopped, the timer A is deactivated, the timer B is initialized, the timer B is started, and then the process proceeds to step S11. move on. Note that when the ascending drive is not being performed (that is, when the ascending drive is stopped in step S19 described later), the drive of the motor 22 is kept stopped.

  In step S18, it is determined whether or not the motor 22 is being driven upward. When the drive is being lifted, the process proceeds to step S19. When the drive is not being lifted, the process proceeds to step S15.

  Further, in step S20, the traveling is stopped and then the process proceeds to step S21.

  In step S21, it is determined whether or not the upper limit switch 31 is operating. And when it is operating, it progresses to Step S26, and when it is not operating, it progresses to Step S22.

  In step S22, it is determined whether or not the motor 22 is being driven upward. When the drive is being lifted, the process returns to step S21. When the drive is not being lifted, the process proceeds to step S23.

  In step S23, it is determined whether or not the motor 22 is being driven downward. When it is not in the downward drive, the process proceeds to step S25, and when it is in the downward drive, the process proceeds to step S24.

  In step S24, the lowering drive of the motor 22 is stopped, and then the process proceeds to step S25.

  In step S25, the motor 22 starts to be lifted, and the process returns to step S21.

  In step S26, it is determined whether or not the motor 22 is being driven upward. When the ascending drive is not being performed, the process proceeds to step S28. When the ascending drive is being performed, the process proceeds to step S27.

  In step S27, the ascending drive of the motor 22 is stopped, and then the process proceeds to step S28.

  In step S28, the backward running of the car wash machine body 1 is started.

In step S29, the car wash is stopped.

<2> Explanation of action when reverse winding does not occur
1) When the start key 39 is pressed (at this time, the square pipe 26 is in the position (a) in FIG. 7), first, the process proceeds to step S1, where it is determined that the upper limit switch 31 is operating. If so, the car wash machine main body 1 is moved forward in step S2 and the process proceeds to step S3, and steps S1 to S3 are repeated. When it is determined in step S1 that the upper limit switch 31 has not been operated, the process proceeds to step S29 to stop the car wash.

  2) When the traveling position detection means E detects the traveling position L1 or more as the car wash machine body 1 travels (at this time, the square pipe 26 is at the position (b) in FIG. 7), steps S3 to S4, S5 , S6, S7, S8, S9, S12, and the descent drive is started in step S12. Then, steps S11, S4, S5, S6, S7, S8, and S11 are repeated. Thereby, the square pipe 26 descends.

  3) Next, when the square pipe 26 reaches the position shown in FIG. 7C and at least one of the photoelectric sensors 29 and 30 is shielded from light, the process proceeds from step S6 to steps S13, S14, and S16. After the descent driving is stopped, the ascending drive is started, and after the timer A is initialized, the operation of the timer A is started. Then, steps S15, S11, S4, S5, S6, S13, S14, and S15 are repeated. Thereby, the square pipe 26 rises.

  If the photoelectric sensors 29 and 30 are both transmitted along with the rising of the square pipe 26, the process proceeds from step S6 to steps S7 and S13, and steps S13, S14, S15, S11, S4, S5, S6, S7, and S13 are repeated. .

  4) When the timer A detects the predetermined time Ta or more (at this time, the square pipe 26 is in the position (d) in FIG. 7), the process proceeds from step S15 to step S17, and the ascending drive is stopped in step S17. Is deactivated, and the timer B is started after the timer B is initialized. As a result, the square pipe 26 stops moving up and down. Then, steps S11, S4, S5, S6, S7, S8, S9, S10, and S11 are repeated.

  5) When the timer B detects the predetermined time Tb or more (at this time, the square pipe 26 is in (e)), the process proceeds from step S10 to step S12, the descent drive is started in step S12, and the timer B is deactivated. To do. Then, steps S11, S4, S5, S6, S7, S8, and S11 are repeated. Thereby, the square pipe 26 descends.

  6) When at least one of the photoelectric sensors 29 and 30 is shielded as the square pipe 26 descends (at this time, the square pipe 26 is at the position (f) in FIG. 7), the above-mentioned 3) is described. The same control as the above is performed.

  7) Then, the control described in 4), 5) and 6) is repeated.

  8) When the square pipe 26 reaches the position shown in FIG. 7 (G) and the cleaning by the outward travel ends, the process proceeds from step S11 to step S20, and the outward travel is stopped.

  When the drive is being lifted, steps S21, S22, and S21 are repeated.

  Further, when the vehicle is in the downward drive, the process proceeds to steps S21, S22, S23, and S24, the downward drive is stopped in step S24, the upward drive is started in step S25, and then steps S21, S22, and S21 are repeated.

  Further, when the driving is not in the ascending or descending state, the process proceeds to steps S21, S22, S23, and S25, the ascending drive is started in step S25, and then steps S21, S22, and S21 are repeated.

  9) When the square pipe 26 reaches the normal upper limit position, the process proceeds to steps S21, S26, and S27, the ascending drive is stopped in step S27, and the reverse operation is started in step S28.

When the car wash machine main body 1 returns to the start position, the car wash is finished.

<3> Explanation of action when reverse winding occurs during descending drive
10) When reverse winding occurs during the lowering drive of the motor 22 in the above 2) and 5), the movable curtain 21 is wound around the winding shaft 20 and the photoelectric sensors 29 and 30 are lifted, as shown in FIG. As shown, the photoelectric sensor 29 is shielded from light by the shielding plate 34. In this light-shielded state, the upper limit switch 31 is operating. Thereby, in the reverse winding detection in step S4, the process proceeds from step S31 in FIG. 6 to steps S32 and S33, the descending drive is stopped in step S33, the reverse winding is stored, and the reverse winding display lamp 40 is turned on. . Then, steps S5, S11, S4 and S5 are repeated. Thereby, the square pipe 26 is held at the reverse winding upper limit stop position.

  The reverse winding display lamp 40 lit in step S33 is not turned off until the restoration work for returning the movable curtain 21 described later to the normal state is completed.

  11) When the outward cleaning is completed, the process proceeds from step S11 to step S20 to stop the outward movement.

  And it progresses to step S21, S26, S28, and the go-around of the car-washing machine main body 1 is started by step S28.

When the car wash machine main body 1 returns to the start position, the car wash is terminated and the reverse winding memory is erased.

<4> Description of the action when starting a car wash with reverse winding occurring
12) Assume that the start key 39 is pressed to start the car wash with reverse winding occurring. In this case, as shown in FIG. 3B, when the photoelectric sensor 29 is shielded by the shielding plate 34 and the upper limit switch 31 is activated, the traveling position detecting means E is moved to the traveling position in the control of 2). When L1 or more is detected (at this time, the square pipe 26 is at the position (b) in FIG. 7), the process proceeds from step S3 to steps S4, S5, and S11, and steps S11, S4, S5, and S11 are repeated. Thereby, the square pipe 26 is held at the reverse winding upper limit stop position.

Next, the control of 11) is performed.

[ I-2] Description of Restoration Work <1> Description of Manual Operation Flowchart (FIG. 8) In step S41, it is determined whether or not the photoelectric sensor 29 is shielded from light. If the light is not shielded, the process proceeds to step S62. If the light is shielded, the process proceeds to step S42.

  In step S42, it is determined whether or not the upper limit switch 31 is operating. And when not operating, it progresses to step S62, and when operating, it progresses to step S43.

  In step S43, the raising / lowering driving of the motor 22 is stopped, and the reverse winding display lamp 40 is turned on, and then the process proceeds to step S44.

  In step S44, it is determined whether or not the curtain key 42 has been pressed. When it is pressed, the process proceeds to step S45.

  In step S45, it is determined whether or not the emergency stop key 43 has been pressed. When it is pressed, the process proceeds to step S61, and when it is not pressed, the process proceeds to step S46. The emergency stop key 43 also serves as a switch key for an operator to arbitrarily completely stop the car wash machine when an abnormality occurs during the car wash.

  In step S46, it is determined whether there is a memory for canceling reverse winding. If yes, go to Step S45, otherwise go to Step S47.

  In step S47, it is determined whether or not the motor 22 is being driven upward. When the drive is being lifted, the process proceeds to step S53, and when the drive is not being lifted, the process proceeds to step S48.

  In step S48, it is determined whether or not the motor 22 is being driven downward. When it is in the downward drive, the process proceeds to step S57, and when it is not in the downward drive, the process proceeds to step S49.

  In step S49, it is determined whether or not the up key 37 has been changed from being not pressed to being pressed. When it changes, it progresses to step S52, and when it does not change, it progresses to step S50.

  In step S50, it is determined whether or not the lowering key 38 is changed from being not pressed to being pressed. When it does not change, it returns to step S45, and when it changes, it progresses to step S51.

  In step S51, the lowering drive of the motor 22 is started, the timer C is initialized, the operation of the timer C is started, and then the process returns to step S45.

  In step S52, the ascending drive of the motor 22 is started, the timer D is initialized, the operation of the timer D is started, and then the process returns to step S45.

In step S53, it is determined whether or not the timer D has detected a predetermined time Td or longer. If not detected, the process proceeds to step S55. If detected, the process proceeds to step S54. In step S54, the ascending drive of the motor 22 is stopped, and then the process proceeds to step S45.

  In step S55, it is determined whether or not the upper limit switch 31 has changed from non-operation to operation. When it does not change, it returns to step S45, and when it changes, it progresses to step S56.

  In step S56, the fact that reverse winding has been canceled is stored, the reverse winding cancellation lamp 41 is turned on, the reverse winding display lamp 40 is turned off, and the process proceeds to step S54.

  In step S57, it is determined whether or not the timer C has detected a predetermined time Tc or longer. If not detected, the process proceeds to step S59. If detected, the process proceeds to step S58.

  In step S58, the lowering drive of the motor 22 is stopped, and the process returns to step S45.

  In step S59, it is determined whether the upper limit switch 31 is operating. And when it is operating, it returns to Step S45, and when it is not operating, it proceeds to Step S60.

  In step S60, it is determined whether at least one of the photoelectric sensors 29 and 30 is shielded from light. When the light is not shielded, the process returns to step S45, and when the light is shielded, the process proceeds to step S58.

  In step S61, the reverse winding elimination lamp 41 is turned off, the memory indicating that the reverse winding has been eliminated is erased, and the process returns to step S41.

  In step S62, it is determined whether or not the up key 37 is pressed. When it is not pressed, the process proceeds to step S66, and when it is pressed, the process proceeds to step S63.

  In step S63, it is determined whether or not the upper limit switch 31 is operating. And when it is operating, it progresses to Step S65, and when it is not operating, it progresses to Step S64.

  In step S64, the motor 22 is driven upward, and the process returns to step S41.

  In step S65, the raising / lowering drive of the motor 22 is stopped, and then the process returns to step S41.

  In step S66, it is determined whether or not the down key 38 is pressed. When it is pressed, the process proceeds to step S67, and when it is not pressed, the process returns to step S41.

  In step S67, it is determined whether at least one of the photoelectric sensors 29 and 30 is shielded from light. When the light is shielded, the process proceeds to step S65. When the light is not shielded, the process proceeds to step S68.

  In step S68, the motor 22 is driven downward, and the process returns to step S41.

Steps S62 to S68 are processes when the operator arbitrarily opens and closes the movable curtain 21 in a normal state where no reverse winding occurs.

<2> Description of action when performing recovery work
14) When reverse winding occurs, an operator who intends to perform the recovery operation confirms that the reverse winding display lamp 41 is lit, and then presses the curtain key 42. Thereby, it progresses to step S45 from step S44, and repeats step S45, S46, S47, S48, S49, S50, S45. As a result, the up key 37 and the down key 38 can be received.

  15) First, when the ascending key 37 is pressed only once, the process proceeds from step S49 to step S52. In step S52, the ascending drive of the motor 22 is started, the timer D is initialized, and then the operation of the timer D is started. Then, steps S45, S46, S47, S53, S55, and S45 are repeated.

  When the timer D detects a predetermined time Td (about 0.2 seconds in this embodiment, about 15 millimeters as the moving distance of the square pipe 26) or more, the process proceeds from step S53 to step S54, and the motor 22 is driven upward in step S54. To stop. Then, steps S45, S46, S47, S48, S49, S50, and S45 are repeated, and the up key 37 and the down key 38 can be received again.

  When the motor 22 is driven upward for the predetermined time Td, the operator visually confirms whether the square pipe 26 is actually lowered. When it is confirmed that the square pipe 26 has been lowered, the push-up key 37 is repeatedly “pressed” and “released”. Also at this time, the operator visually confirms whether the square pipe 26 is lowered. As a result, “proceed from step S49 to step S52 to start ascending drive”, “repeat steps s45, S46, S47, S53, S55, and S45 to ascend driving”, “proceed from step S53 to step S54 to perform ascending drive. “Stop”, “Repeat steps S45, S46, S47, S48, S49, S50, and S45 and accept the ascending key 37 and the descending key 38” are repeated, and the square pipe 26 descends little by little.

  16) When the square pipe 26 descends by the ascending drive by repeatedly "pressing" and "releasing" the ascending key 37 of 15) above, when the reverse winding state is eliminated, the square pipe 26 starts to rise. Then, when the operator confirms that the square pipe 26 starts to rise, stop the “push” of the ascending key 37 and confirm that the upper limit switch 31 has been moved away from the actuator 32 and is surely deactivated. To do. If it can be confirmed that the upper limit switch 31 has been deactivated reliably, the raising key 37 is repeatedly "pressed" and "released", whereby the square pipe 26 rises intermittently little by little.

  17) When the square pipe 26 is intermittently raised by the upward drive by repeatedly pressing and releasing the upward key 37 of 16), the square pipe 26 is moved from the position shown in FIG. 3 (A). When it rises from below and reaches the normal upper limit position (that is, when the upper limit detection switch 31 is changed from the non-operating state to the operating state by the operating element 32 as shown in FIG. 3A), “Steps S45, S46, Steps S55, S53, S55, and S45 are repeated, and the process proceeds from step S55 of "Driving drive" to step S56 to store the fact that reverse winding has been canceled, and the reverse winding cancellation lamp 41 is lit, and the reverse winding display lamp After turning off 40, the ascending drive is stopped in step S54. Then, steps S45, S46, and S45 are repeated.

  18) When the emergency stop key 42 is pressed, the process proceeds from step S45 to step S61, the reverse winding cancellation lamp 41 is turned off, and the memory indicating that the reverse winding is canceled is erased, and then the process proceeds to step S41.

  19) In 16) above, when the square pipe 26 starts to rise, if the upper limit switch 31 is not surely inactivated, the reverse occurs when the square pipe 26 is in the position shown in FIG. It is considered that winding has started. At this time, the depression key 38 is repeatedly “pressed” and “released”. Also at this time, the operator visually confirms whether the square pipe 26 is lowered. In this case, when the lowering key 38 is pressed, the process proceeds to steps S50 to S51 to start the lowering drive of the motor 22, the timer C is initialized, and the operation of the timer C is started. Then, S45, S46, S47, S48, S57, S59, and S45 are repeated.

  When the timer C detects a predetermined time Tc (about 0.2 seconds in this embodiment, about 15 millimeters as the moving distance of the square pipe 26) or more, the process proceeds from step S57 to step S58, and the motor 22 is driven downward in step S58. To stop. Then, steps S45, S46, S47, S48, S49, S50, and S45 are repeated.

  Then, by repeatedly “pressing” and “releasing” the descending key 38, “proceed from step S50 to step S51 and start descending driving” and “steps S45, S46, S47, S48, S57, S59, and S45 are repeated. , "Descent drive", "Proceed from step S57 to step S58 and stop the descent drive", "Repeat steps S45, S46, S47, S48, S49, S50, S45 and accept the up key 37 and the down key 38" Repeatedly, the square pipe 26 descends. If the upper limit switch 31 becomes inoperable due to the lowering of the square pipe 26, the process proceeds from step S59 to step S60. Therefore, "the process proceeds from step S50 to step S51, and the descent drive is started", "steps S45, S46, S47, S48. , S57, S59, S60, S45 are repeatedly driven downward, “Proceed from step S57 to step S58 and stop the downward drive”, “Steps S45, S46, S47, S48, S49, S50, S45 are repeated, and the up key 37 and The “down key 38 can be accepted” is repeated, and the square pipe 26 is lowered intermittently in this manner.

  20) It is confirmed that the upper limit switch 31 is reliably inactivated by the downward movement of the square pipe 26 by the downward driving by repeatedly pressing and releasing the lowering key 38 of 19). When the square pipe 26 is lowered to a position where it can be confirmed, the "pressing" and "releasing" the up key 37 are repeated.

  Even if the lowering key 38 is repeatedly “pressed” and “released”, if the square pipe 26 does not descend until the upper limit switch 31 is surely inactivated, this recovery operation cannot be used for recovery. Perform recovery work.

21) Thereafter, the same as 17) and 18) above.

Next, a second embodiment of the present invention will be described mainly with reference to FIGS. In the second embodiment, a reverse winding detection switch 51 is provided in place of the blocking plate 34 of the first embodiment. Others are the same as the first embodiment.

  When the square pipe 26 is positioned at the normal upper limit stop position detected by the cooperation of the upper limit switch 31 and the actuator 32, the reverse winding detection switch 51 is as shown in FIG. 9A. The switch 51 is actuated by the actuator 32 when the square pipe 26 is further raised by a predetermined distance from the normal upper limit stop position, as shown in FIG. 9B. It is like that.

  Thus, the position of the square pipe 26 when the reverse winding detection switch 51 changes from the inactive state to the active state is the reverse winding upper limit position.

  As in the first embodiment, the square pipe 26 can be further raised from the reverse winding upper limit stop position by a predetermined distance Y2 (about 60 millimeters in this embodiment). In other words, the square pipe 26 is further predetermined from the reverse winding upper limit stop position. The position that is elevated by the distance Y2 is configured to be the ascent limit.

Next, the operation of the second embodiment will be described.
[ II-1] The preconditions for car washing are the same as those in the first embodiment. In this case, “FIG. 3A” is read as “FIG. 9A”.

<1> Description of Flowcharts in FIGS. 4 and 5 <2> Description of Action in Case of Reverse Winding These are the same as those in the first embodiment. In this case, “FIG. 3A” is read as “FIG. 10”. That is, step S4 for reverse winding detection performs the process of FIG.

<3> Explanation of action when reverse winding occurs during descending drive
31) When reverse winding occurs during the lowering drive of the motor 22 in the above 2) and 5), the movable curtain 21 is wound around the winding shaft 20 and the square pipe 26 is lifted, as shown in FIG. 9B. Thus, the reverse winding detection switch 51 is operated by the actuator 32. Thus, in the reverse winding detection in step S4, the process proceeds from step S71 in FIG. 10 to step S72. In step S72, the descent driving of the motor 22 is stopped, the reverse winding is stored, and the reverse winding display lamp 40 is turned on. Let Then, steps S5, S11, S4 and S5 are repeated. Thereby, the square pipe 26 is held at the reverse winding upper limit stop position.

  The reverse winding display lamp 40 lit in step S72 is not turned off until the restoration work for returning the movable curtain 21 described later to a normal state is completed.

Next, the control of 11) is performed.

<4> Description of the action when starting a car wash with reverse winding occurring
32) It is assumed that the start key 39 is pressed to start the car wash while reverse winding is occurring. In this case, as shown in FIG. 9B, when the reverse winding detection switch 51 is operated by the operating element 32, the traveling position detecting means E detects the traveling position L1 or more in the control of 2). (At this time, the square pipe 26 is in the position (b) in FIG. 7), the process proceeds from step S3 to steps S4, S5, and S11, and steps S11, S4, S5, and S11 are repeated. Thereby, the square pipe 26 is held at the reverse winding upper limit stop position.

Next, the control of 11) is performed.

[ II-2] Description of Restoration Work <1> Manual Operation Flowchart (FIG. 11) FIG. 11 is the same as FIG. 8 except that step S41 and step S42 in FIG. 8 are replaced with step S75. .

  In step S75, it is determined whether or not the reverse winding detection switch 51 is operating. When it is operating, the process proceeds to step S43, and when it is not operating, the process proceeds to step S62.

Hereinafter, steps S43 to S68 are the same as those in the first embodiment. In this case, “step S41” is read as “step S75”.

<2> Operation when performing the recovery operation The operation when performing the recovery operation is the same as in the first embodiment. In this case, “FIG. 3A” is read as “FIG. 9A” and “step S41” is read as “step S75”.

Next, a third embodiment of the present invention will be described mainly with reference to FIGS.

  In the third embodiment, the upper limit switch 31 for detecting the normal upper limit position of the square pipe 26 in cooperation with the actuator 32 is also used as a switch for detecting the reverse winding upper limit position. The blocking plate 34 of the first embodiment and the dedicated reverse winding detection switch 51 of the second embodiment are not provided. And the control apparatus 36 is provided with the reverse winding memory | storage means M for memorize | storing that it is a reverse winding state. Other configurations are the same as those of the first embodiment.

The reverse winding storage means M stores a signal corresponding to “reverse winding” when reverse winding occurs. Further, the square pipe 26 is configured to be able to further rise from the reverse winding upper limit stop position by a predetermined distance Y2 (about 60 millimeters in the present embodiment).

Next, the operation of the third embodiment will be described.
[ III-1] The explanation premise for car washing is the same as that of the first embodiment. In this case, “FIG. 3A” is read as “FIG. 12A”.

<1> Description of Flowcharts in FIGS. 4 and 5 <2> Description of Action in Case of Reverse Winding These are the same as those in the first embodiment. In this case, it is assumed that the car wash is started in a state where “reverse winding” is not stored in the reverse winding storage means M.

  Also, “FIG. 6” should be read as “FIG. 13”. That is, step S4 for reverse winding detection performs the process of FIG.

In step S5, it is determined whether or not “reverse winding” is stored in the reverse winding storage means M.

<3> Description of Action when Reverse Winding Occurs During Lowering Drive In this case, it is assumed that the car wash is started in a state where “reverse winding” is not stored in the reverse winding storage means M.

 41) When reverse winding occurs during the lowering drive of the motor 22 in the above 2) and 5), the movable curtain 21 is wound around the winding shaft 20, and the square pipe 26 is positioned beyond the position shown in FIG. Ascending from below, the position shown in FIG. 12B is reached, and the upper limit detection switch 31 is changed from non-operation to operation by the actuator 32. Thereby, in the reverse winding detection in step S4, the process proceeds from step S82 in FIG. 13 to step S83. In step S83, the descent driving of the motor 22 is stopped, and “reverse winding” is stored in the reverse winding storage means M. Then, the reverse winding display lamp 40 is turned on. Then, steps S5, S11, S4 and S5 are repeated. As a result, the square pipe 26 is held at the reverse winding upper limit stop position (the reverse winding upper limit stop position of the third embodiment substantially coincides with the normal upper limit stop position).

  The reverse winding display lamp 40 lit in step S83 is not turned off until a restoration operation for returning the movable curtain 21 described later to a normal state is performed.

Next, the control of 11) is performed (in the third embodiment, “reverse winding” stored in the reverse winding storage means M is not erased in the control of 11).

<4> Description of the action when starting a car wash with reverse winding occurring
42) Assume that the start key 39 is pressed to start the car wash while reverse winding is occurring. In this case, since the reverse winding storage means M stores “reverse winding”, when the traveling position detecting means E detects the traveling position L1 or more in the control of 2) (at this time, the square pipe) 26 is in (b)), the process proceeds from step S3 to steps S4, S5 and S11, and steps S11, S4, S5 and S11 are repeated. Thereby, the square pipe 26 is held at the reverse winding upper limit stop position.

Next, the control of 11) is performed (in the third embodiment, “reverse winding” stored in the reverse winding storage means M is not erased in the control of 11).

[ III-2] Description of Restoration Work <1> Description of Flowchart of Manual Operation (FIG. 14) FIG. 14 shows steps S41, S42, and S43 in FIG. 8 as steps S85 and S86, and step S61 as steps S87 and S88. Step S45 is deleted, and when step S46 is YES, the procedure proceeds to step S87, and the rest is the same as FIG. Then, the reverse winding detection in step S85 performs the control of FIG.

  In step S81 of FIG. 13, it is determined whether or not the motor 22 is being driven downward. If it is not in the downward drive, the process proceeds to step S86. If it is in the downward drive, the process proceeds to step S82.

  In step S82, it is determined whether or not the upper limit switch 31 has changed from non-operation to operation. If not changed, the process proceeds to step S86. If changed, the process proceeds to step S83.

  In step S83, the descent driving of the motor 22 is stopped, "reverse winding" is stored in the reverse winding storage means M, the reverse winding display lamp 40 is turned on, and the process proceeds to step S86.

  In step S86, it is determined whether or not the reverse winding storage means M stores “reverse winding”. If not stored, the process proceeds to step S62. If stored, the process proceeds to step S44.

  In step S44, it is determined whether or not the curtain key 42 has been pressed. If it has been pressed, the process proceeds to step S46.

  In step S46, it is determined whether there is a memory for canceling reverse winding. If yes, the process proceeds to step S87. If not, the process proceeds to step S47.

  Hereinafter, steps S47 to S60 and steps S62 to S68 are the same as those in the first embodiment. In this case, “step S41” is read as “step S85”.

  In step S87, it is determined whether or not the emergency stop key 43 has been pressed. When it is pressed, the process proceeds to step S88.

In step S88, the reverse winding elimination lamp 41 is turned off, the "reverse winding" stored in the reverse winding storage means M is deleted, the memory indicating that the reverse winding has been canceled is deleted, and the process returns to step S85.

<2> Description of action when performing recovery work
43) When reverse winding occurs, the operator who intends to perform the recovery operation confirms that the reverse winding display lamp 41 is lit, and then presses the curtain key 42. Thereby, it progresses to step S46 from step S44, and repeats step S46, S47, S48, S49, S50, S46. As a result, the up key 37 and the down key 38 can be received.

  44) First, when the ascending key 37 is pressed only once, the process proceeds from step S49 to step S52. In step S52, the ascending drive of the motor 22 is started, the timer D is initialized, and then the operation of the timer D is started. Then, steps S46, S47, S53, S55, and S46 are repeated.

  When the timer D detects a predetermined time Td (about 0.2 seconds in this embodiment, about 15 millimeters as the moving distance of the square pipe 26) or more, the process proceeds from step S53 to step S54, and the motor 22 is driven upward in step S54. To stop. Steps S46, S47, S48, S49, S50, and S46 are repeated, and the up key 37 and the down key 38 can be received again.

  When the motor 22 is driven upward for the predetermined time Td, the operator visually confirms whether the square pipe 26 is actually lowered. When it is confirmed that the square pipe 26 has been lowered, the push-up key 37 is repeatedly “pressed” and “released”. Also at this time, the operator visually confirms whether the square pipe 26 is lowered. As a result, “proceed from step S49 to step S52 to start the ascending drive”, “repeat the steps S46, S47, S53, S55, and S46 to ascend driving”, “proceed from step S53 to step S54 and stop the ascending drive” , “Steps S46, S47, S48, S49, S50, S46 are repeated, and the up key 37 and the down key 38 can be received” are repeated, whereby the square pipe 26 is intermittently lowered little by little.

  45) When the square pipe 26 descends by the ascending drive by repeatedly pressing and releasing the ascending key 37 of 44), when the reverse winding state is eliminated, the square pipe 26 starts to rise. Then, when the square pipe 26 starts to rise, the operator stops “pressing” the ascending key 37 and confirms that the upper limit switch 31 is separated from the actuator 32 and is surely inactivated. If it can be confirmed that the upper limit switch 31 has been deactivated reliably, the raising key 37 is repeatedly "pressed" and "released", whereby the square pipe 26 rises intermittently little by little.

  46) The square pipe 26 is lifted intermittently by the upward drive by repeatedly pressing and releasing the lift key 37 of 45), whereby the square pipe 26 is moved to the position shown in FIG. When the upper limit position is reached from the lower side and reaches the normal upper limit position (that is, when the upper limit detection switch 31 is changed from the non-operating state to the operating state by the operating element 32 as shown in FIG. 12A), “Step S46, Steps S55, S53, S55, and S46 are repeated, and the process proceeds from step S55 of "rising drive" to step S56, the fact that reverse winding has been canceled is stored, the reverse winding cancellation lamp 41 is lit, and the reverse winding display lamp After turning off 40, the ascending drive is stopped in step S54. Then, the process proceeds from step S46 to step S87.

  47) When the emergency stop key 42 is pressed, the process proceeds from step S87 to step S88, the reverse winding cancellation lamp 41 is turned off, the "reverse winding" stored in the reverse winding storage means M is turned off, and the reverse winding is performed. After the memory indicating that the removal has been canceled is erased, the process returns to step S85.

  48) In 45) above, when the square pipe 26 starts to rise, if the upper limit switch 31 is not reliably deactivated, the square pipe 26 is in the position shown in FIG. This is considered to be when reverse winding has started. At this time, the depression key 38 is repeatedly “pressed” and “released”. Also at this time, the operator visually confirms whether the square pipe 26 is lowered. In this case, when the lowering key 38 is pressed, the process proceeds from step S50 to step S51 to start the lowering drive, the timer C is initialized, and the operation of the timer C is started. Then, S46, S47, S48, S57, S59, and S46 are repeated.

  When the timer C detects a predetermined time Tc (about 0.2 seconds in this embodiment, about 15 millimeters as the moving distance of the square pipe 26) or more, the process proceeds from step S57 to step S58, and the motor 22 is driven downward in step S58. To stop. Then, steps S46, S47, S48, S49, S50, and S46 are repeated.

  Then, by repeatedly pressing and releasing the descending key 38, “Proceed from Step S50 to Step S51 to start descending driving” and “Steps S46, S47, S48, S57, S59, S46 are repeated to descend. “Driving”, “Proceed from step S57 to step S58 and stop the descent driving”, “Repeat steps S46, S47, S48, S49, S50, and S46 and accept the up key 37 and the down key 38” are repeated. If the upper limit switch 31 is inactivated due to the lowering of the square pipe 26, the process proceeds from step S59 to step S60. Therefore, the process proceeds from step S50 to step S51 to start the descent drive, and "steps S46, S47, S48, S57. , S59, S60, S46 are repeated, descending drive "," Proceed from step S57 to step S58 and stop descending drive "," Steps S46, S47, S48, S49, S50, S46 are repeated, the up key 37 and the down key "38 is acceptable" is repeated, and in this way, the square pipe 26 is intermittently lowered little by little.

  49) To the position where it can be confirmed that the upper limit switch 31 is surely inoperative by lowering the square pipe 26 by the lowering drive by repeatedly pressing and releasing the lowering key 38 of 48). When the square pipe 26 is lowered, the push key 37 is repeatedly "pressed" and "released".

  Even if the lowering key 38 is repeatedly “pressed” and “released”, if the square pipe 26 does not descend until the upper limit switch 31 is surely inactivated, this recovery operation cannot be used for recovery. Perform recovery work.

50) Thereafter, the same as the above 46) and 47).

Although the embodiments of the present invention have been described above, the first embodiment corresponds to the inventions of claims 1, 2, 3, 5, and 6, and the second embodiment has claims 1, 2, 5, and 6. Further, the third embodiment corresponds to the invention of claims 1, 4, 5 and 6.

  In each embodiment, the movable curtain 21 is the shield of the present invention, the square pipe 26 is the lower end of the shield of the present invention, the motor 22 is the drive device of the present invention, and the up key 37 is the present invention. The ascending operation input means, and the descending key 38 constitute the descending operation input means of the present invention.

  In the first embodiment, the photoelectric sensor 29 as the vehicle body detection means, the blocking plate 34 as the detected member, the upper limit switch 31 as the switch, the actuator 32, and the control device 36 cooperate with each other. And the upper limit switch 31 and the actuator 32 as a switch cooperate with each other to operate normally. An upper limit position detecting means is configured.

  In the second embodiment, the reverse winding detection switch 51 and the actuator 32 cooperate with each other to constitute the reverse winding detection means of claim 1 and the reverse winding upper limit position detection means of claim 2, respectively. The upper limit switch 31 and the operating element 32 cooperate with each other to constitute a normal upper limit position detecting means.

  In the third embodiment, the upper limit switch 31, the actuator 32, and the control device 36 cooperate with each other to constitute the reverse winding detection means of claim 1, and the upper limit switch 31 and the actuator 32 cooperate with each other. Thus, the normal upper limit position detecting means of claim 4 is constituted, and the emergency stop key 43 constitutes the erasing means of claim 4.

  Thus, according to the first to third embodiments, when the take-up shaft 20 is rotationally driven (that is, the motor 22 is driven downward) in the direction in which the movable curtain 21 serving as a shield is fed out, the movable curtain When it is determined that reverse winding has occurred based on the lower end of 21, that is, the square pipe 26 reaching the reverse winding upper limit position (first and second embodiments) or the normal upper limit position (third embodiment), the motor The descent drive 22 is automatically stopped. As a result, it is possible to prevent a large tensile force from acting on the movable curtain 21 due to the reverse winding being continued when the motor 22 is in the descending drive state, so that the curtain 21 itself is damaged or the winding shaft 20 is damaged. Is effectively prevented from being damaged by overload.

  Further, when the motor 22 has stopped the lowering drive due to the occurrence of reverse winding, the motor 22 is driven up for a predetermined time each time there is an operation input to the ascending key 37 as the raising operation input means. 15) and 44) of the restoration work, the motor 22 is driven up for a predetermined time (and therefore a predetermined amount) every time there is an operation input of the up key 37, so that the square pipe 26 exceeds the rise limit at a stretch. Can be prevented.

  In the above case, the motor 22 is driven down for a predetermined time each time there is an operation input to the lowering key 38 as the lowering operation input means. Even if the lowering key 38 is operated, the motor 22 is driven downward for a predetermined time (thus, a predetermined amount) every time there is an operation input of the lowering key 38, thereby preventing the square pipe 26 from exceeding the rising limit at once. it can.

  In particular, according to the first and second embodiments, when the take-up shaft 20 is rotationally driven (that is, the motor 22 is driven downward) in the direction in which the movable curtain 21 serving as a shield is fed out, When it is detected that the lower end, that is, the square pipe 26 has reached the reverse winding upper limit position (the position (B) in FIGS. 3 and 9) above the normal upper limit position, the descent driving of the motor 22 is automatically stopped. ing. As a result, even when reverse winding occurs when the square pipe 26 is at the normal upper limit position (position (A) in FIGS. 3 and 9) or immediately above it, the reverse winding state is changed from the normal upper limit position. Can also be accurately detected based on the reverse winding upper limit position set upward.

  In particular, according to the first embodiment, the reverse winding upper limit position detecting means is provided on the square pipe 26 and can detect the vehicle body surface of the vehicle to be cleaned. And a blocking plate 34 that can block the optical axis of the photoelectric sensor 29 when the square pipe 26 reaches the reverse winding upper limit position. The photoelectric sensor 29 is used for detecting the vehicle body surface of the vehicle to be cleaned in the control of various cleaning means provided in the car wash machine (for example, the raising / lowering control of the top brush 7, the top nozzle 9, the movable curtain 21, etc.). Since it is a vehicle body detection means, it is possible to accurately detect that the square pipe 26 has reached the reverse winding upper limit position while simplifying the structure using such a vehicle body detection means (photoelectric sensor 29). is there.

  In particular, according to the second embodiment, the reverse winding upper limit position detecting means is composed of the dedicated reverse winding upper limit switch 51 and the actuator 32 that also serves as the normal upper limit position detecting means. Judgment conditions are simplified, and the control configuration is simplified.

  In particular, according to the third embodiment, the normal upper limit position detection used for automatically stopping the ascending drive of the motor 22 by detecting that the square pipe 26 reaches a predetermined normal upper limit position during normal winding. Since the upper limit switch 31 and the actuator 32 as means are also used as a part of the reverse winding detection means, the structure can be simplified accordingly. In addition, when it is detected that the square pipe 26 has reached the normal upper limit position while the motor 22 is driven downward, the downward drive of the motor 22 is stopped and the reverse winding storage means M stores the reverse winding. When the reverse winding storage means M stores reverse winding, the lowering drive of the motor 22 is prohibited, and when the reverse winding storage means M does not store reverse winding. Since the motor 22 is allowed to descend, the normal upper limit position detecting means (the upper limit switch 31 and the actuator 32) is used in the normal state (that is, the reverse winding memory) even if the normal winding upper limit position detecting means (the upper limit switch 31 and the actuator 32) is also used as the reverse winding detecting means. In a state where the means M does not store reverse winding, the motor can be driven down without any trouble even from the position where the square pipe 26 is in the normal upper limit position, and the movable curtain 21 can be fed out.

  As mentioned above, although the embodiment of the shield opening and closing device in the car wash machine according to the present invention has been described in detail, the present invention is not limited to the above embodiment, and without departing from the present invention described in the claims, Various small design changes can be made.

  For example, in the above-described embodiment, a mobile car wash machine in which a car wash machine body 1 having a gate shape moves back and forth with respect to a stopped vehicle as a car wash machine is shown, but the present invention is a gate car wash machine. You may apply to the fixed type car wash machine which fixes the main body 1 to an installation surface, and moves a vehicle with respect to this fixed frame, and performs a car wash.

  Moreover, in the said Example, although what used the movable curtain 21 as a shield in order to prevent wash water from splashing from the inside of the car wash machine main body 1 was shown, in this invention, a shield is used in the car wash machine main body 1. It may be carried out in a car wash machine that is used for heat insulation.

  Moreover, in the said Example, although what opened and closed the front opening of the car-washing machine main body 1 with the movable curtain 21 as a shield was shown, it replaces with the front opening and in addition, the rear opening is movable. You may make it open and close with a curtain.

1 is a schematic side view of a car wash machine according to a first embodiment of the present invention. Schematic front view of the car wash machine (viewed in the direction of arrow 2 in FIG. 1) It is a principal part enlarged view which shows the relationship position of the lower end of a shielding body, and a position detection means, Comprising: (A) is the state which the shielding body lower end reached the normal upper limit position, (B) is a reverse winding upper limit stop position. (C) shows a state where the lift limit position has been reached. The 1st partial figure of the flowchart which shows an example of the automatic raising / lowering control of a shield Second part of the flowchart Subroutine for reverse winding detection (step S4) in the flowchart. Explanatory drawing which shows the raising / lowering locus | trajectory of the shield in the car washing process Flow chart showing an example of manual lifting control of the shield 3 is an enlarged view of the main part corresponding to FIG. 3 showing the second embodiment. Subroutine corresponding to FIG. 6 showing the second embodiment Flowchart corresponding to FIG. 8 showing the second embodiment 3 is an enlarged view of the main part corresponding to FIG. 3 showing the third embodiment. Subroutine corresponding to FIG. 6 showing the third embodiment Flowchart corresponding to FIG. 8 showing the third embodiment

Explanation of symbols

1 ... Car wash machine body 20 ... Winding shaft 21 ... Movable curtain (shield)
22 ... Motor (drive device)
26 ... Square pipe (lower end of shield)
29 ... Photoelectric sensor (body detection means, reverse winding detection means, reverse winding upper limit position detection means) 31 ... Upper limit switch (switch, reverse winding detection means, normal upper limit position detection means, reverse winding upper limit position) Position detection means)
32 ... Operator (reverse winding detection means, normal upper limit position detection means, reverse winding upper limit position detection means)
34 ... Shut-off plate (detected member, reverse winding detection means, reverse winding upper limit position detection means)
36 ... Control device (reverse winding detection means, reverse winding upper limit position detection means)
37 ... Ascent key (ascending operation input means)
38 ... Down key (Descent operation input means)
43 ... Emergency stop key (erase)
51. Reverse winding detection switch (reverse winding detection means, reverse winding upper limit position detection means)
M .... Reverse winding storage means

Claims (6)

A gate-type car wash machine body, a winding shaft that is rotatably supported by the car wash machine body, and can be opened and closed by being wound around the take-up shaft and supported so as to be raised and lowered. At least a flexible shield, and a drive device that rotationally drives the winding shaft;
In the car wash machine in which the driving device is rotationally driven to one side to feed out the shield, and the other is rotationally driven to wind up the shield.
Reverse winding detection means for detecting that the shield is wound around the winding shaft when the driving device is rotationally driven to the one side;
A car wash machine comprising: a control device that stops the one rotational drive of the drive device based on the detection of the reverse winding detection means. A gate-type car wash machine body, a winding shaft that is rotatably supported by the car wash machine body, and can be opened and closed by being wound around the take-up shaft and supported so as to be raised and lowered. At least a flexible shield, a drive device that rotationally drives the winding shaft, and a normal upper limit position detection unit that detects that the lower end of the shield has reached a predetermined normal upper limit position;
The drive device is driven to rotate in one direction to feed out the shield, and the drive device is driven to rotate in the other direction so that the shield is wound, and when the lower end of the shield reaches a predetermined normal upper limit position during winding. In the car wash machine that automatically stops the other rotational drive of the drive device based on the detection of the normal upper limit position detection means,
Reverse winding upper limit position detecting means for detecting that the lower end of the shield has reached the reverse winding upper limit position above the normal upper limit position;
When the lower end of the shield reaches the reverse winding upper limit position when the driving device is rotationally driven to the one side, the one of the driving devices is based on the detection by the reverse winding upper limit position detecting means. And a controller for stopping the rotational drive of the car wash machine. The normal upper limit position detecting means includes a switch provided in the car wash machine main body, and an operator provided at a lower end of the shield to operate the switch when the lower end reaches the normal upper limit position. ,
Further, the reverse winding upper limit position detecting means is provided at the lower end of the shield to detect the vehicle body surface of the vehicle to be cleaned, and is provided at the car wash machine body, and the lower end of the shield is The car wash machine according to claim 2, further comprising a detected member that is detected by the vehicle body detecting means when the reverse winding upper limit position is reached. A gate-type car wash machine body, a winding shaft that is rotatably supported by the car wash machine body, and can be opened and closed by being wound around the take-up shaft and supported so as to be raised and lowered. At least a flexible shield, a drive device that rotationally drives the winding shaft, and a normal upper limit position detection unit that detects that the lower end of the shield has reached a predetermined normal upper limit position;
The drive device is driven to rotate in one direction to feed out the shield, and the drive device is driven to rotate in the other direction so that the shield is wound, and when the lower end of the shield reaches a predetermined normal upper limit position during winding. In the car wash machine that automatically stops the other rotational drive of the drive device based on the detection of the normal upper limit position detection means,
Reverse winding storage means for storing reverse winding of the winding shaft;
When it is detected that the lower end of the shield has reached the normal upper limit position when the drive device is rotationally driven to the one side, based on the detection of the normal upper limit position detection unit, the drive device One rotation driving is stopped and the reverse winding storage means stores reverse winding, and when the reverse winding storage means stores reverse winding, the one of the drive devices A control device that prohibits the rotational drive of the drive device, and permits the one rotational drive of the drive device when the reverse winding storage means does not store the reverse winding,
A car wash machine comprising: erasing means capable of erasing stored reverse winding stored in the reverse winding storage means.   Ascending operation input means capable of arbitrary operation input is provided, and when the driving device stops the one rotational drive, the driving device is held for a predetermined time each time there is an input by the ascending operation input means. The car wash machine according to claim 1, 2, 3 or 4, wherein the car wash machine is driven to rotate in the other direction. When there is a lowering operation input means capable of arbitrary operation input and the drive device stops the one rotational drive, the drive device is held for a predetermined time each time there is an input by the lowering operation input means. 6. The car wash machine according to claim 5, wherein the car wash machine is driven to rotate in one direction.

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