JP2007037278A - Movable body control unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a control cable for moving up/down a carrier plate from being broken when a foreign matter is caught between a guide rail and a roller and the control cable is thereby overloaded while a lifting and lowering device for a window screen is in operation. <P>SOLUTION: A PTC element 52 and a resistor R1 of a low resistance value are connected in series with a motor 24 for moving up/down a window screen. When a foreign matter such as a pebble is caught between a guide rail and a roller or the like while the window screen, that is, a carrier plate is in operation, the movement of the carrier plate becomes unsmooth, and an overcurrent is passed through the motor 24. When the temperature of the PTC element 52 becomes equal to or higher than a predetermined value due to this overcurrent, the circuit is broken to interrupt power supply to the motor 24. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a moving body control device that can be moved up and down on vehicles such as motorcycles, passenger cars, small ships, snowmobiles and the like.

Vehicles such as motorcycles, passenger cars, small ships, snowmobiles, and the like are provided with windscreens (windshields) that can be moved up and down electrically.
The wind screen lifting device includes a guide rail attached to the vehicle body side, a carrier plate that can be moved up and down along the guide rail, and to which the wind screen is attached. A plurality of cables that are routed in this manner, a drum in which the end of the cable is locked and the cable is wound and fed to raise or lower the carrier plate, and the drum is driven It is comprised with the drive device etc. which consist of motors.

  Limit switches are arranged at the upper end and the lower end of the guide rail, respectively, and the carrier plate is raised or lowered by the switch operation, so that the carrier plate comes into contact with the limit switch. The rising or lowering of the carrier plate is stopped to stop the wind screen at the position of the upper end or the lower end.

As described above, the windscreen elevating device that elevates and lowers the windscreen electrically by operating the switch provided around the handle of the motorcycle has the following problems.
In other words, when the windscreen lifting / lowering operation is hindered by foreign objects such as pebbles caught between the guide rail and carrier plate side rollers during the windscreen lifting / lowering operation, the motor stops the mechanism. However, since the driving force is continuously applied to the mechanism portion, the mechanism portion cannot withstand the driving force of the motor and is damaged. In particular, the control cable for raising and lowering the carrier plate is overloaded, and the control cable is broken.

In addition, since limit switches are provided at the upper and lower limits of the wind screen lifting device, when the wind screen moves up and down to each position, the energization to the motor is interrupted by the ON detection signal input of the limit switch, In the intermediate position, no means for shutting off the power to the motor is provided.
The motor has a built-in power cut-off device for the purpose of preventing damage due to overload, but since the judgment value of power cut is larger than the damage load of the mechanism, the mechanism is damaged before the motor is cut off. There is a problem of doing.

  In addition, since the current value (about 6A to 9A) that flows to the motor when the mechanism is stopped due to foreign matter being caught in the mechanism is close to the motor current value during normal operation (about 2A to 5A), the motor current value Control alone is difficult.

  On the other hand, although it is possible to prevent damage to the mechanical part by adding a timer circuit and monitoring the motor energization time and motor current value, there is a new problem that the circuit configuration becomes complicated and the cost increases To do.

  Moreover, although a fuse is inserted in series with the motor circuit and the mechanism portion can be prevented from being damaged by fusing the fuse due to overcurrent, the fuse must be replaced each time.

  By the way, as shown in the following Patent Documents 1 to 4, although some PTC elements are used for the purpose of protecting a driving device such as a motor and a circuit, the purpose is to protect the mechanism portion of the wind screen lifting device. No PTC element is used.

JP-A 63-174521 Japanese Patent Laid-Open No. 04-178184 Japanese Patent Laid-Open No. 06-335159 Japanese Patent Laid-Open No. 10-322879

  The present invention has been provided in view of the above-mentioned problems, and when a foreign object is caught between the guide rail and the roller during the operation of the wind screen lifting device, an overload is applied to the control cable that lifts and lowers the carrier plate. It is an object of the present invention to provide a moving body control device intended to prevent the control cable from being broken when it is applied.

Therefore, in the moving body control apparatus according to claim 1 of the present invention, the motor 24, a speed reduction mechanism that decelerates the rotational driving force of the motor 24, a drive direction conversion mechanism that converts the drive direction of the motor 24, In a moving body drive device comprising a moving body that moves according to the output of the drive direction conversion mechanism,
A PTC element 52 is provided in series with the motor 24 for detecting an overcurrent that flows through the motor 24 when the moving operation becomes non-smooth during the moving operation of the moving body. It is a feature.

  In the mobile body control device according to claim 2, the mobile body drive device includes guide rails 12 and 13, a carrier plate 14 provided so as to be movable along the guide rails 12 and 13, and the carrier plate 14. A windscreen lifting device for two-wheeled vehicles comprising one end locked and a control cable locked to a drum 30 provided at the speed reduction mechanism at the other end.

  According to a third aspect of the present invention, the PTC element 52 is characterized in that the circuit that cuts off the circuit in about 10 seconds when the current is about 6 A is used.

  The mobile control device according to claim 4 is characterized in that a resistor R1 having a low resistance value of 0.5Ω is connected in series to the PTC element 52.

  According to a fifth aspect of the present invention, there is provided a vehicle control apparatus according to any one of the first to fourth aspects.

  According to the moving body control device of claim 1 of the present invention, when the moving operation becomes non-smooth during the moving operation of the moving body, the current flowing through the PTC element 52 becomes an overcurrent and the PTC element. 52 generates heat and cuts off the circuit. Therefore, it is possible to prevent the moving body drive device side that drives the moving body from being overloaded.

  According to the moving body control device of the second aspect, when the moving operation becomes non-smooth during the moving operation of the carrier plate 14 due to the foreign object such as pebbles in the guide rails 12 and 13, The current flowing through the PTC element 52 becomes an overcurrent, and the PTC element 52 generates heat to interrupt the circuit. Therefore, when an overload is applied to the control cable for moving the carrier plate, the circuit is interrupted before the control cable breaks, and the motor 24 is stopped to prevent the control cable from being broken. Can do.

  According to the moving body control device of the third aspect, since the PTC element 52 has a characteristic that the circuit is interrupted in about 10 seconds when the current is about 6 A, the motor current is about 6 A that causes an overload. When it comes to time, the circuit can be shut off quickly, and breakage of the control cables 44 to 46 can be prevented.

  According to the mobile control apparatus of the fourth aspect, since the resistor R1 having a low resistance value of 0.5Ω is connected in series to the PTC element 52, the PTC element 52 is caused to perform a trip operation. When a current higher than the current starts to flow into the motor 24, a voltage drop occurs due to the low-resistance resistor R1, the motor coil resistance and the element resistance of the PTC element 52, and the voltage applied to both ends of the motor 24 can be lowered. The input current to the motor 24 can be limited, and the motor 24 itself can be prevented from being overloaded.

  According to the vehicle of the fifth aspect, since the mobile body control device according to any one of the first to fourth aspects is provided, an overload is applied to the control cable particularly when a foreign object is caught. In such a case, the circuit is interrupted before the breakage load of the control cable is reached, and the motor 24 is stopped, so that an excellent vehicle that prevents breakage of the control cable can be provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the mechanical configuration of the wind screen lifting device will be described, and then the circuit configuration will be described.

  FIG. 1 is a schematic configuration diagram of an elevating device 10 that raises and lowers the wind screen 1, and is a view of the elevating device 10 as seen from above. Guide rails 12 and 13 having a substantially C-shaped cross section are disposed on both sides of the upper surface of the base bracket 11 serving as the base of the lifting device 10. The base bracket 11 is attached to the vehicle body side of a vehicle such as a motorcycle, a passenger car, a small ship, or a snowmobile.

  A substantially flat carrier plate 14 is provided so as to bridge the guide rails 12 and 13 on both sides, and a roller (slider) 15 is provided in the guide rails 12 and 13 as shown in FIGS. 16 is provided so that it can roll freely. When the carrier plate 14 is driven up and down as will be described later, the roller 15 rolls in the guide rails 12 and 13 so that the carrier plate 14 moves up and down smoothly along the longitudinal direction of the guide rails 12 and 13. It is free.

Limit switches 19 and 20 for detecting the upper end position and the lower end position of the carrier plate 14 (wind screen 1) are arranged on the left base bracket 11 of the left guide rail 12 in FIG. , 20 actuators 19a, 20a are pressed and driven so that detection signals are sent from limit switches 19, 20 to a control unit to be described later.
A driving piece 22 (see FIG. 2) is integrally suspended from the left lower surface of the carrier plate 14, and the actuators 19 a and 20 a of the limit switches 19 and 20 are pressed and driven by the driving piece 22.

As shown in FIG. 1, a cable driving device 23 is disposed on the lower surface side of the base bracket 11 of the elevating device 10. The cable driving device 23 includes a motor 24 that can rotate forward and backward, and the motor 24. It is comprised with the reduction gear 25 which decelerates rotation. A gear 26 is attached to the output shaft of the speed reducer 25 so as to be exposed on the upper surface side of the base bracket 11, and the drum 30 is rotatably attached to the upper surface of the gear 26 and the base bracket 11 by a shaft 29. Is meshed with the tooth portion 31.
The rotational speed of the motor 24 is decelerated by the speed reducer 25, and the drum 30 is further decelerated by the gear 26 of the speed reducer 25 so as to rotate forward or reverse. Members such as the drum 30 disposed on the upper surface side of the base bracket 11 are covered with a base cover (not shown).

Further, four pulleys 34 to 37 are rotatably arranged by a shaft 33 on the upper surface of the base bracket 11 and inside the guide rails 12 and 13.
An end locking portion 44a on one end side of the cable 44, which is a control cable, is locked via a groove (not shown) of the drum 30. Further, the direction of the cable 44 is changed via the pulley 34, and the end locking portion 44 b at the other end of the cable 44 is locked to the left lower surface side of the carrier plate 14.

Further, an end locking portion 45 a on one end side of the cable 45 is locked to the left lower surface side of the carrier plate 14 via the pulley 35, and the other end side of the cable 45 changes direction via the pulley 36. Thus, the end locking portion 45 b is locked to the lower surface side on the right side of the carrier plate 14.
The cable 46 having the end locking portion 46 a locked on the lower right side of the carrier plate 14 is turned by a pulley 37, and the end locking portion 46 b on the other end side of the cable 46 is a groove of the drum 30. It is locked after being wound up (not shown).

Next, the raising / lowering operation | movement of the windscreen 1 is demonstrated. First, when the wind screen 1 is raised, as shown in FIG. 1, the motor 24 is driven to rotate forward, for example, and its rotational speed is decelerated by the speed reducer 25, and further meshes with the gear 26 of the speed reducer 25. The drum 30 rotates counterclockwise about the shaft 29 as a fulcrum.
When the drum 30 rotates counterclockwise, the cable 44 is wound around the drum 30 and at the same time, the cable 46 is sent out from the drum 30. As the cable 44 is wound up, the cables 44 to 46 circulate through the pulleys 34 to 37 as indicated by arrows in the drawing, whereby the carrier plate 14 rises along the guide rails 12 and 13. I will do it.

  As shown in FIG. 3, the carrier plate 14 is raised by the rotation of the drum 30, and the drive piece 22 of the carrier plate 14 presses and drives the actuator 19 a of the upper limit switch 19. Turned on. A detection signal of the limit switch 19 is sent to a control unit described later to stop the motor 24. This stop position is the upper end position of the wind screen 1.

  When the carrier plate 14 (wind screen 1) is lowered, the above control operation is performed in reverse, and the carrier plate 14 is lowered in FIG. 3 and the carrier plate 14 is detected by the limit switch 20. Then, the carrier plate 14 stops at this position. This stop position is the lower end position of the wind screen 1.

Next, a circuit configuration of the wind screen lifting device will be described. FIG. 4 shows a circuit diagram of a wind screen lifting device. The control unit 51 includes two relays RY1, RY2, a PTC element 52, and a low resistance value (for example, connected to the PTC element 52 in series). 0.5Ω) resistor R1, backflow prevention diodes D1, D2, and the like are mounted on one printed circuit board, and the printed circuit board is mounted in a case.
The positive side of the battery 4 is connected to the terminal T1 of the control unit 51 via the fuse F1, and is connected to the terminal T2 of the control unit 51 via the main switch 53 and the fuse F2. Further, the negative electrode side of the battery 4 is connected to a terminal T <b> 3 that is a ground terminal of the control unit 51. Here, the voltage + B is applied from the battery 4 to the terminal T1 of the control unit 51, and the voltage + B1 is applied to the terminal T2.

Further, the limit switch 19 for detecting the upper end position of the carrier plate 14 is connected to the terminals T11 and T12 of the control unit 51, and the limit switch 20 for detecting the lower end position of the carrier plate 14 is connected to the terminals T13 and T14. Yes. Further, an up switch 54 for raising the carrier plate 14, that is, the wind screen 1, is connected to the terminal T4 of the control unit 51, and a down switch 55 for lowering the wind screen 1 is connected to the terminal T5.
Note that the contacts of the up switch 54 and the down switch 55 are of a normally closed contact type, and, for example, are maintained in an on state when not being pressed. Then, by pressing, the contact is turned off, and an up signal and a down signal are output.

  The motor 24 is connected between the terminals T6 and T7 of the control unit 51, the terminals T9 and T10 are directly connected, and the series circuit of the neutral lamp 56 and the neutral switch 57 is connected to the terminal T8. The neutral switch 57 is interlocked with the ignition switch on the vehicle side, and the neutral lamp 56 is turned on when the main switch 53 is turned on. The neutral lamp 56 serves as an indicator for indicating that the system is in operation standby or in operation.

The relay RY1 has a two-circuit configuration. The first coil r11, the first contact portion 61 that is driven when the first coil r11 is excited, the second coil r12, and the second coil r12. And the second contact portion 62 driven by being excited. Note that the circles of the first and second contact portions 61 and 62 of the relay RY1 indicate the normally open contact side, and the circles indicate the normally closed contact side.
The other relay RY2 has the same configuration as that of the relay RY1, and the first coil r21, the first contact part 64 driven by exciting the first coil r21, and the second coil r22. And the second contact point 65 driven by exciting the second coil r22 constitutes a relay RY2. Further, in the first and second contact portions 64 and 65 of the relay RY2, a circle mark indicates the normally open contact side, and a circle mark indicates the normally closed contact side.

A series circuit of a resistor R1, a PTC element 52, and a motor 24 is connected to the first contact portion 61 and the second contact portion 62 of the relay RY1, and the motor is switched by switching between the first contact portion 61 and the second contact portion 62. The direction of the current flowing through 24 is switched. For example, when the motor 24 is driven to rotate forward, the wind screen 1 is raised, and when the motor 24 is driven to rotate backward, the wind screen 1 is lowered.
FIG. 4 shows the direction of current to the motor 24 when the windscreen 1 is raised (UP) and lowered (DOWN).

  FIG. 5 shows the element resistance-temperature characteristics of the PTC (Positive Temperature Coefficient) element 52. The element resistance increases as the element temperature increases, and the element resistance increases rapidly in the vicinity of the melting point of the polymer. In the operation of the PTC element 52, when an overcurrent flows, the temperature of the element itself rises due to excessive Joule heat generated inside. As a result, the element resistance increases and the circuit current is interrupted. Once it operates (trip), it will not return until the temperature of the element has dropped. That is, when the circuit current is interrupted, the temperature of the element is cooled and restored to the original resistance value.

  In the present embodiment, the current value during normal operation of the windscreen 1 in the windscreen lifting device is low resistance, and the resistance value gradually increases with the energization time during overcurrent due to foreign object pinching, and the PTC that cuts off the energization The element 52 is used. The optimum PTC element 52 is selected according to the desired energization cut-off time (trip time) and the cut-off current value. In the embodiment, the resistance value hardly increases until the current of the motor 24 is about 3 A, A PTC element 52 that cuts off current in about 10 seconds at about 6 A is used.

  FIG. 4 shows a state in which the main switch 53 that does not drive the control unit 51 is in an OFF state and the wind screen 1, that is, the carrier plate 14 is in the lower end position. Further, the limit switch 19 is off and the limit switch 20 is on. Further, since the main switch 53 is also off, no voltage is applied to the motor 24, and the neutral lamp 56 is also turned off.

  Next, when the main switch 53 is turned on, the state shown in FIG. 6 is obtained. That is, when the main switch 53 is turned on, a current flows through the second coil r22 of the relay RY2 as shown by an arrow and is excited. When the second coil r22 is excited, the second contact portion 65 is switched to the normally open contact side, and a voltage + B0 to be applied to other circuits is generated. Since the limit switch 20 is on, the voltage + B0 is applied to the first coil r21 of the relay RY2, and the first contact r 64 is switched to the normally open contact side by exciting the first coil r21. At the same time, the neutral lamp 56 is turned on by applying the voltage + B0.

  On the other hand, in the relay RY1, since both the up switch 54 and the down switch 55 are not operated by the driver, current flows through the first coil r11 and the second coil r12 as shown by arrows. When the first coil r11 and the second coil r12 are excited, the first contact part 61 and the second contact part 62 are switched to the normally open contact side as shown in the figure, whereby one terminal of the motor 24 is connected to the ground position. Thus, the other terminal of the motor 24 is connected to the ground via the PTC element 52 and the resistor R1. In this state, the motor 24 is in a stopped state.

  When the driver operates the up switch 54 to raise the wind screen 1 from the state shown in FIG. 6, the up switch 54 is turned off as shown in FIG. 7, so that the current is cut off in the first coil r11 of the relay RY1. Thus, the first contact portion 61 returns and switches to the normally closed contact side. When the first contact portion 61 of the relay RY1 is switched to the normally closed contact side, the voltage + B0 is applied to the motor 24, and the first contact portion 61, the motor 24, and the PTC element 52 are indicated by the current as indicated by an arrow. , Resistor R1, second contact 62 and ground.

  As a result, the motor 24 is driven in the forward direction to raise the carrier plate 14 as described above, and the wind screen 1 is raised in conjunction with the raising of the carrier plate 14. When the carrier plate 14 moves up, the drive piece 22 of the carrier plate 14 moves away from the actuator 20a of the limit switch 20 that detects the lower end position, so that the limit switch 20 is turned off and the first coil r21 of the relay RY2 is excited. The first contact portion 64 returns and switches to the normally closed contact side.

Here, when the operation of the up switch 54 is stopped before the wind screen 1 goes to the upper end position, the up switch 54 is restored and turned on, and the first coil r11 of the relay RY1 is excited as shown in FIG. Thus, the first contact portion 61 is switched to a normally open contact, and the motor 24 stops. In such a case, the driver stops at an arbitrary position on the wind screen 1.
When the up switch 54 shown in FIG. 7 is continuously operated, as described above, the drive piece 22 of the carrier plate 14 presses and drives the actuator 19a of the limit switch 19 that detects the upper end position, and the limit switch 19 is driven. Turn on. When the limit switch 19 is turned on, as shown in FIG. 8, the first coil r11 of the relay RY1 is excited, the first contact portion 61 is switched to the normally open contact side, the motor 24 is stopped, and the wind screen 1 is Stop at the top position. When the driver releases his hand from the up switch 54, the up switch 54 is restored and turned on.

  Next, when the wind screen 1 is lowered while the wind screen 1 (carrier plate 14) is at the upper end position, the down switch 55 is operated as shown in FIG. Here, since the limit switch 19 and the up switch 54 are also turned on before the down switch 55 is operated, the first coil r11 of the relay RY1 is excited, and the first contact portion 61 is normally open. Switched to the contact side.

As shown in FIG. 9, when the down switch 55 is operated, the down switch 55 is turned off, and the second contact portion 62 of the relay RY1 returns to the normally closed contact side and switches to the power source side. When the second contact portion 62 is switched to the normally closed contact side, the voltage + B0 is applied to the motor 24, and the current is applied to the second contact portion 62, the resistor R1, the PTC element 52, the motor 24, and the relay RY1 as shown in the figure. The motor 24 is driven in reverse by flowing through the one contact portion 61 and the ground. When the wind screen 1 is lowered, the limit switch 19 is turned off.
If the operation of the down switch 55 is stopped while the wind screen 1 is descending, the down switch 55 is turned on, the second coil r12 of the relay RY1 is excited, and the second contact portion 62 is switched to the normally open contact side. Thus, the power supply to the motor 24 is cut off, and the motor 24 stops.

When the down switch 55 is continuously operated and the drive piece 22 of the carrier plate 14 presses and drives the actuator 20a of the limit switch 20, the limit switch 20 is turned on. When the limit switch 20 is turned on, as shown in FIG. 10, a current flows through the second coil r12 of the relay RY1 via the diode D2 and the limit switch 20, and the second coil r12 is excited. The contact part 62 is switched to the normally open contact side.
When the second contact portion 62 is switched to the normally open contact side, the energization to the motor 24 is interrupted, so that the wind screen 1 is stopped at the lower end position. When the limit switch 20 is turned on, the first coil r21 of the relay RY2 is excited, so that the first contact portion 64 is switched to the normally open contact side.

Steps S1 to S5 in FIG. 11 show a flowchart of the raising and lowering operation of the wind screen 1 (carrier plate 14) by the operation of the up switch 54 or the down switch 55 described above. That is, when the main switch 53 is on (see step S1) and the up switch 54 or the down switch 55 is operated (see step S2), the wind screen 1 is raised or lowered.
When the wind screen 1 is at the upper end position or the lower end position, the limit switch 19 or the limit switch 20 is turned on (see step S4), and the ascending or descending operation of the wind screen 1 is stopped (see step S5).

  As described above, when the motor 24 is driven and the carrier plate 14 is moved up and down along the guide rails 12 and 13, foreign matter such as pebbles between the roller 15 on the carrier plate 14 side and the guide rails 12 and 13. When the carrier plate 14 is not sandwiched, the carrier plate 14 moves up and down smoothly, so that the control cables 44 to 46 are not overloaded. In this case, since the current value of the motor 24 is about 2A to 5A, there is not much voltage drop at the resistor R1 of 0.5Ω, and there is almost no temperature rise at the PTC element 52, so that each part is normal. Operation is performed.

If foreign matter such as pebbles is sandwiched between the guide rails 12 and 13 and the roller 15 of the carrier plate 14 during the raising / lowering operation of the carrier plate 14 (wind screen 1) (see step S6 in FIG. 11), the carrier plate 14 The movement becomes slow or the movement of the carrier plate 14 stops, and the carrier plate 14 does not operate smoothly. Therefore, an overload is applied to the control cables 44 to 46 that raise and lower the carrier plate 14.
In such a case, the rotation of the motor 24 is constrained to increase the value of the current flowing through the motor 24 (see steps S7 and S8), the temperature of the PTC element 52 rises, and the resistance value of the PTC element 52 increases (step S9). , S10). When this current value becomes about 6 A and flows for about 10 seconds, the PTC element 52 performs a trip operation, and energization of the motor 24 is interrupted (see step S11).

  In this way, when the motor current reaches about 6A when it is overloaded, the circuit can be shut off quickly, and the energization to the motor 24 is cut off before the control cables 44 to 46 are broken. Thus, the load on the control cables 44 to 46 by the motor 24 is released any more, and the breakage of the control cables 44 to 46 due to the overload on the control cables 44 to 46 can be prevented.

  In addition, as described above, the motor current is overloaded and the PTC element 52 operates to cut off the energization of the motor 24, thereby driving the moving body such as the motor 24, the speed reducer 25, and the control cables 44 to 46. It is possible to prevent the apparatus side from being overloaded.

  When the temperature of the PTC element 52 decreases and returns after the trip operation of the PTC element 52, the resistance value also returns to the original value (see step S12 in FIG. 11). Therefore, by operating the up switch 54 or the down switch 55 again. The raising and lowering operation of the carrier plate 14 can be performed. Also, even if the PTC element 52 is once tripped, small foreign matters such as pebbles are often removed during traveling, and after that, it returns to normal and the wind screen 1 is moved up and down. be able to.

  Further, when a current exceeding the current at which the PTC element 52 is tripped starts to flow into the motor 24, a voltage drop occurs due to the low resistance R1, the motor coil resistance, and the internal resistance of the PTC element 52, and the motor The voltage applied to both ends of the motor 24 can be lowered, so that the input current to the motor 24 can be limited and the motor 24 itself can be prevented from being overloaded.

  Furthermore, by mounting the moving body control unit 51 and the like constituting the above moving body driving device and the moving body control device on the vehicle, an overload is applied to the control cables 44 to 46 particularly when foreign objects are caught. In this case, the circuit is interrupted before the breakage load of the control cables 44 to 46 is reached, and the motor 24 is stopped, so that an excellent vehicle that prevents breakage of the control cables 44 to 46 can be provided.

  Next, a so-called origin return operation of the wind screen 1 when the main switch 53 is turned off will be described with reference to FIGS. The origin is a position where the windscreen 1 is lowered and a limit switch 20 that detects the lower end position is turned on.

FIG. 12 shows a case where the upper and lower limit switches 19 and 20 are not turned on, and is a state where the wind screen 1 is stopped at an intermediate position, and the main switch 53 is turned off from this state.
When the main switch 53 is on, as shown in FIG. 12, the voltage + B1 is applied to the second coil r22 of the relay RY2 via the terminal T2 and the diode D1, and the second coil r22 is excited by this voltage + B1. ing. At the same time, the voltage + B0 is applied to the terminal T10, and this voltage + B0 is applied to the second coil r22 via the first contact part 64 of the relay RY2. The second coil r22 is excited with this voltage + B0. That is, two voltages of voltage + B1 and voltage + B0 are applied to the second coil r22, and current from two directions flows through the second coil r22 to excite it.

  As shown in FIG. 13, when the main switch 53 is turned off, the voltage + B1 from the terminal T2 is not supplied to the second coil r22 of the relay RY2, but the voltage + B0 from the terminal T10 is supplied to the second coil r22. Since it continues, excitation of the 2nd coil r22 is maintained. Therefore, even if the voltage + B1 is interrupted, the voltage + B from the terminal T1 supplies the voltage + B0 via the second contact portion 65 because the second contact portion 65 of the relay RY2 is maintained on the normally open contact side. is doing. That is, the voltage + B0 is continuously applied to each part.

At this time, as shown in FIG. 13, the first coil r11 of the relay RY1 is energized because the up switch 54 is turned on, and the first contact r61 is energized by exciting the first coil r11. It has become. The second coil r12 of the relay RY1 is de-energized because the voltage + B1 is cut off, and the second contact portion 62 is switched to the normally closed contact side.
Therefore, the voltage + B0 is supplied to the motor 24, and a current flows to the second contact portion 62 of the relay RY1, the resistor R1, the PTC element 52, the motor 24, and the first contact portion 61 of the relay RY1. This current reverses the motor 24, and the wind screen 1 is lowered by the rotation of the motor 24 (see step S13 in FIG. 11).

If foreign matter is caught between the guide rails 12 and 13 during the lowering operation of the wind screen 1 (see step S14), the process proceeds to step S7 and the control operation by the PTC element 52 is performed. If no foreign object is caught in step S14, the wind screen 1 moves to the lowest end (see step S15).
When the wind screen 1 moves to the lowest end, the limit switch 20 is turned on at the carrier plate 14 (see step S16), and the operation of the wind screen 1 is stopped (see step S17).

A circuit in such a case is shown in FIG. When the limit switch 20 is turned on, the first coil r21 of the relay RY2 is excited, and the first contact portion 64 is switched to the normally open contact side. Therefore, the second coil r22 of the relay RY2 is not excited, and the second contact portion 65 Returns to the normally closed contact. As a result, the voltage + B0 is cut off, the supply of the voltage + B0 to each part is also cut off, and all functions are stopped.
When the voltage + B0 is cut off, the first coil r21 of the relay RY2 shown in FIG. 14 is also not excited, and the first contact portion 64 returns to the normally closed contact side and returns to the origin as shown in FIG. Return to the initial state.

It is the schematic block diagram which showed the mechanical structure of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is a principal part enlarged view of the guide rail in embodiment of this invention. It is explanatory drawing which shows operation | movement of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is a specific circuit diagram in the lifting device of the wind screen in the embodiment of the present invention. It is operation | movement explanatory drawing of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is operation | movement explanatory drawing of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is operation | movement explanatory drawing of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is operation | movement explanatory drawing of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is operation | movement explanatory drawing of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is operation | movement explanatory drawing of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is a flowchart which shows the control operation | movement of the circuit of the raising / lowering apparatus of the wind screen in embodiment of this invention. It is operation | movement explanatory drawing in case the windscreen of the windscreen raising / lowering apparatus in embodiment of this invention operate | moves origin. It is operation | movement explanatory drawing in case the windscreen of the windscreen raising / lowering apparatus in embodiment of this invention operate | moves origin. It is operation | movement explanatory drawing in case the windscreen of the windscreen raising / lowering apparatus in embodiment of this invention operate | moves origin.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wind screen 12 Guide rail 13 Guide rail 14 Carrier plate 23 Cable drive device 24 Motor 30 Drum 44-46 Control cable 52 PTC element R1 Resistance

Claims (5)

A motor (24), a speed reduction mechanism that decelerates the rotational driving force of the motor (24), a drive direction conversion mechanism that converts the drive direction of the motor (24), and a movement that moves by the output of the drive direction conversion mechanism In a mobile drive device comprising a body,
A PTC element (52) for detecting an overcurrent flowing in the motor (24) when the moving operation becomes non-smooth during the moving operation of the moving body and interrupting the circuit is connected in series to the motor (24). A moving body control device in a moving body drive device, characterized in that the moving body control device is provided.   The movable body drive device includes a guide rail (12) (13), a carrier plate (14) provided so as to be movable along the guide rail (12) (13), and one end of the carrier plate (14). 2. The moving body control according to claim 1, wherein the moving body control device is a windscreen lifting device for a two-wheeled vehicle comprising a control cable that is locked and the other end is locked to a drum (30) provided in the speed reduction mechanism. apparatus.   The mobile unit control device according to claim 1 or 2, wherein the PTC element (52) has a characteristic that the circuit is cut off in about 10 seconds when the current is about 6A.   The mobile control apparatus according to any one of claims 1 to 3, wherein a resistor (R1) having a low resistance value of 0.5Ω is connected in series to the PTC element (52). A vehicle comprising the moving body control device according to any one of claims 1 to 4.

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