Abstract:
A vehicle motion detector and control device arrangement includes a casing, a rotor rotated with the transmission line of the cable of the mileage meter of the motor vehicle in the casing, a rotary driven member revolvably supported on a damping oil in an annular end chamber of the rotary member and maintained in the middle position by magnetic expulsive force, and switch means mounted outside the casing and induced by a magnet at the rotary driven member to turn on a control device of the motor vehicle upon operation of the motor vehicle.

Description:
BACKGROUND OF THE INVENTION  
         [0001]    The present invention relates to a vehicle motion detector and control device arrangement, which comprises a vehicle motion detector that detects the motion of the motor vehicle, and a control device controlled to work by the vehicle motion detector.  
           [0002]    The central lock system of a car is controlled to lock/unlock the lock by means of the induction of the revolving speed of the engine. If the driver gets off the car to clean the windshield after the car has been started, the central lock system may be induced to lock the lock automatically, causing the driver unable to enter the car. It is dangerous when a young child is staying inside the car at this time. Further, when unlocked manually, the central lock system cannot automatically lock the lock.  
           [0003]    Regular motorcycles are commonly equipped with a motorcycle stand. The motorcycle stand is moved between the operative position and the non-operative position with the leg. If the rider of a motorcycle forgot to lift the motorcycle stand from the operative position to the non-operative position before riding the motorcycle, the protruding motorcycle stand may hit an external object during running of the motorcycle, causing the motorcycle and the rider to fall to the ground. Further, when parking a motorcycle in a narrow space, it is difficult to lower the motorcycle stand from the non-operative position to the operative position with the leg.  
         SUMMARY OF THE INVENTION  
         [0004]    The present invention has been accomplished under the circumstances in view. According to one aspect of the present invention, the vehicle motion detector and control device arrangement includes a casing, a rotor rotated with the transmission line of the cable of the mileage meter of the motor vehicle in the casing, a rotary driven member revolvably supported on a damping oil in an annular end chamber of the rotary member and maintained in the middle position by magnetic expulsive force, and switch means mounted outside the casing and induced by a magnet at the rotary driven member to turn on a control device of the motor vehicle upon operation of the motor vehicle. According to another aspect of the present invention, the switch means can be a solenoid switch, or an optical transmitter and receiver unit. In one application example of the present invention, the control device is a control circuit that controls the lock of the central lock system of the car in which the vehicle motion detector is installed. In another application example of the present invention, the vehicle motion detector is installed in a motorcycle to control the operation of a motor that is driven to move the motorcycle stand of the motorcycle between the operative position and the non-operative position. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0005]    [0005]FIG. 1 is an exploded view of a vehicle motion detector according to the present invention.  
         [0006]    [0006]FIG. 2 is a sectional assembly view of the vehicle motion detector according to the present invention.  
         [0007]    [0007]FIG. 3 is a cross sectional view of FIG. 2.  
         [0008]    [0008]FIG. 4 is another sectional view of the vehicle motion detector according to the present invention.  
         [0009]    [0009]FIG. 5 shows the vehicle motion detector installed in a motorcycle and connected to the cable of the mileage meter.  
         [0010]    [0010]FIG. 6 is an exploded view of a motorcycle stand control device according to the present invention.  
         [0011]    [0011]FIG. 6- 1  is a perspective assembly view of FIG. 6.  
         [0012]    [0012]FIG. 6- 2  is a side plain view in an enlarged scale of the motorcycle stand control device according to the present invention.  
         [0013]    [0013]FIG. 6- 3  is another side plain view of the motorcycle stand control device according to the present invention.  
         [0014]    [0014]FIG. 7 illustrates the vehicle motion detector installed in a car and connected to the control circuit of the control lock control system of the car.  
         [0015]    [0015]FIG. 8 is a sectional view of an alternate form of the vehicle motion detector according to the present invention.  
         [0016]    [0016]FIG. 9 illustrates the vehicle motion detector installed in the cable of a mileage meter.  
         [0017]    [0017]FIG. 10 shows another installation example of the vehicle motion detector in the mileage meter of a motor vehicle. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0018]    Referring to FIGS. from  1  through  4 , a vehicle motion detector  1  is shown comprised of a casing  11 , a rotor  12 , a rotary driven member  15 , and a circuit board  16 . The casing  11  is formed of two symmetrical half shells fixedly fastened together by screw bolts  114 , comprising two threaded necks  111  at two distal ends onto which two screw caps  211  are respectively threaded to secure two sleeves  21  to the casing  11 , enabling the transmission line  22  of the cable of the vehicle mileage meter  2  to be inserted through the sleeves  21  and the casing  11  (see also FIGS. 9 and 10). The rotor  12  is mounted in the casing  11 , comprising an axial hole  121 , an annular end chamber  122  disposed at one end thereof around the axial hole  121  and filled up with a damping oil  17  and adapted to receive the rotary driven member  15 . The rotary driven member  15  comprises a tubular body  152  inserted into the annular end chamber  122  of the rotor  12  and defining an axial hole  151  in axial alignment with the axial hole  121  of the rotor  12 , and a lug  153  extended from the periphery of the upper end of the tubular body  152  and fixedly mounted with a magnet  154 . The casing  11  further comprises two radial holes  112  at two sides, and two magnets  113  respectively aimed at two opposite ends of the magnet  154  in the lug  153 . The polarity of the magnets  113  are reversed to the polarity of the two opposite ends of the magnet  154  in the lug  153 . The transmission line  22  of the cable of the mileage meter  2  is inserted through the axial hole  151  of the rotary driven member  15  and the axial hole  121  of the rotor  12 . Two clamping plates  13  are respectively mounted in positioning notches  124  at the bottom side of the rotor  12  to hold the transmission line  22 . The clamping plates  13  each have a bearing portion  131  of smoothly arched cross section adapted to support the transmission line  22 . A C-shaped clamp  14  is fastened to an outside annular groove  123  around the periphery of the rotor  12  to fixedly secure the clamping plates  13 , the transmission line  22  and the rotor  12  together. During running of the vehicle, the rotor  12  is rotated with the transmission line  22  of the cable of the mileage meter  2  (see also FIGS. 9 and 10), and the rotary driven member  15  is forced by the damping oil  17  to rotate in one direction until the lug  153  had been stopped at one end of one radial hole  112  of the casing  11 . At this time, the transmission line  22  is continuously rotated to stir up the damping oil  17 , thereby keeping the rotary driven member  15  in the biased position (where the lug  153  is stopped at one end of one radial hole  112  of the casing  11 ). The rotary driven member  15  further comprises two magnets  155  and  1551  disposed at the periphery at different locations. The circuit board  16  is disposed at one side of the casing  11 , comprising a solenoid  161  adapted to act with the magnet  155  or  1551 . The solenoid  161  has two opposite terminals respectively connected to a control device of the vehicle by electric wires  162 . When the rotary driven member  15  biased in one direction during forward movement of the vehicle, one magnet  155  is moved with the rotary driven member  15  toward the solenoid  161 , thereby causing the solenoid  161  to be electrically connected to turn on the control device of the vehicle. When the vehicle biased in the reversed direction during backward movement of the vehicle, the other magnet  1551  is moved with the rotary driven member  15  toward the solenoid  161 , and the solenoid  161  is maintained electrically connected.  
         [0019]    Referring to FIGS. 5, 6,  6 - 1 ,  6 - 2 , and  6 - 3 , the vehicle motion detector  1  can be used to control the motorcycle stand  31  of a motorcycle  3 . The motorcycle  3  comprises a bracket  4  adapted to support a holder  311 . The holder  311  holds a motor  316 . The motor  316  has a gear  315  fixedly mounted on the output shaft thereof. An axle  312  is inserted through the holder  311 , having one end revolvably supported on an axle bearing (not shown) at a cap  35  at one side of the holder  311 . A gear  314  is mounted on the axle  312  and meshed with the gear  315  at the output shaft of the motor  316 . An actuating screw  3122  is fixedly fastened to the axle  312 . Two limit switches  3121  are mounted in the holder  311  and spaced from the actuating screw  3122  at two sides. When starting the engine of the motorcycle  3 , the transmission line  22  is rotated to trigger the vehicle motion detector  1 , causing the vehicle motion detector  1  to turn on the motor  316 . When starting the motor  316 , the actuating screw  3122  is turned with the axle  312  to touch one limit switch  3121 , thereby causing the motorcycle stand  313  to be lifted from the operative position to the non-operative position. An arm  34  is provided having one end fixedly fastened to one end of the axle  312  and an opposite end connected to a side rod on the middle of the motorcycle stand  313  through a tensile spring  33 . When stopping the motorcycle  3 , the circuit board  16  of the vehicle motion detector  1  starts the motor  316  to turn the axle  312  in one direction, thereby causing the arm  34  to be rotated with the axle  312  to pull the motorcycle stand  313  from the non-operative position to the operative position to support the motorcycle  3  on the ground. After the motorcycle stand  313  has been lowered from the non-operative position to the operative position, the actuating screw  3122  triggers the other limit switch  3121  to cut off power supply from the motor  316 . Further, a bushing  32  is sleeved onto the axle  312  and mounted in a pivot hole  3131  at one end of the motorcycle stand  313 , for enabling the motorcycle stand  313  to be turned about the bushing  32  between the operative position and the non-operative position.  
         [0020]    [0020]FIG. 7 shows the vehicle motion detector  1  used in a car to control the central lock  164 . When starting the car, the solenoid of the vehicle motion detector  1  is electrically connected to give a signal to the central lock control circuit  163  through the electric wires  162 , thereby causing the central lock control circuit  163  to unlock the central lock  164 .  
         [0021]    [0021]FIG. 8 shows an alternate form of the present invention. According to this embodiment, the circuit board  18  comprises an optical transmitter and receiver unit  181 , and the rotary driven member  15  comprises a mask plate  156  at one side. The mask plate  156  is inserted in between the transmitter and receiver of the transmitter and receiver unit  181  of the circuit board  18  when starting the vehicle, thereby causing the circuit board  18  to turn on the control device of the vehicle.  
         [0022]    A prototype of vehicle motion detector has been constructed with the features of FIGS.  1 ˜ 10 . The heat sink functions smoothly to provide all of the features discussed earlier.  
         [0023]    Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.