2WD-4WD changeover control device

a housing having a wall; a shaft rotatably supported with respect to the wall of the housing and continually operatively associated with a 2WD-4WD changeover member of a transfer; driving means for driving the shaft via a spring; an indicator indicating to a driver of the vehicle whether the transfer is in the two wheel drive mode or the four wheel drive mode; and a switch switching the indication of the indicator, the switch including a plurality of mutually insulated electrodes provided at one of an inner side of the wall of the housing and the shaft and a conductive member establishing and interrupting an electric connection between any two of the electrodes depending on angular positions of the shaft.

3. The 2WD-4WD changeover control device as set forth in claim 2, wherein the electrodes are conductive members which are arranged circumferentially with respect to the shaft.

4. The 2WD-4WD changeover control device as set forth in claim 2, wherein said switch is a first switch and the driving means includes a worm-wheel rotatably mounted on the shaft, a worm in meshing engagement with the worm-wheel, an electric motor for driving the worm, and a second switch for turning on and off the electric motor, said second switch including a plurality of mutually insulated electrodes provided on the inner side of the wall and a conductive member provided on the worm-wheel.

5. The 2WD-4WD changeover control device as set forth in claim 1, including a bush mounted on the shaft and a worm-wheel mounted on the bush, said worm-wheel being connected to the spring by a first lever.

6. The 2WD-4WD changeover control device as set forth in claim 5, including a second lever connected to the spring and the shaft.

7. The 2WD-4WD changeover control device as set forth in claim 6, wherein said switch is a first switch and said driving means includes a motor, and including a second switch for turning on and off the electric motor.

8. The 2WD-4WD changeover control device as set forth in claim 7, wherein said second switch includes a conductive spring provided with a plurality of spaced apart spring portions and a plurality of terminals provided on an inner side of the wall.

9. A 2WD-4WD changeover control device for changing a driving system of a vehicle between a two wheel drive mode and a four wheel drive mode comprising:

a housing having a wall made of insulating material;

a shaft rotatably supported with respect to the wall of the housing and continually operatively associated with a 2WD-4WD changeover member;

driving means for driving the shaft to switch between the two wheel drive mode and the four wheel drive mode;

an indicator indicating to a driver of the vehicle one of the two wheel drive mode and the four wheel drive mode; and

a switch switching the indication of the indicator, the switch including a plurality of electrodes provided at an inner side of the wall of the housing and a conductive member establishing and interrupting an electric connection between electrodes depending on an angular position of the shaft.

10. The 2WD-4WD changeover control device as set forth in claim 9, including a bush mounted on the shaft, a worm-wheel mounted on the bush, and a first lever connected to the worm-wheel.

11. The 2WD-4WD changeover control device as set forth in claim 10, including a second lever connected to the shaft, said first and second levers being connected to a spring.

12. The 2WD-4WD changeover control device as set forth in claim 9, wherein said switch is a first switch and said driving means includes a motor, and including a second switch for turning on and off the electric motor.

13. The 2WD-4WD changeover control device as set forth in claim 12, wherein said second switch includes a conductive spring provided with a plurality of spaced apart spring portions and a plurality of terminals provided on an inner side of the wall.

14. The 2WD-4WD changeover control device as set forth in claim 9, wherein the conductive member is provided on a holder formed of an electrically insulating material and fixedly mounted on the shaft.

15. The 2WD-4WD changeover control device as set forth in claim 14, wherein the electrodes are conductive members which are arranged circumferentially with respect to the shaft. 16. The 2WD-4WD changeover control device as set forth in claim 9, wherein said switch is a first switch, said driving means including a worm-wheel rotatably mounted on the shaft, a worm in meshing engagement with the worm-wheel and an electric motor for driving the worm, and including a second switch for turning on and off the electric motor.

17. The 2WD-4WD changeover control device as set forth in claim 16, wherein said second switch includes a plurality of mutually insulated electrodes provided on the inner side of the wall and a conductive member provided on the worm-wheel.

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Two-wheeled vehicles - 2wd Parts - 2wd Suspension - 2wd Rear suspension - 2wd change over apparatus and driving actuator - 2wd changeover control device - 2wd transfer device - 2wd Device shifting element - 2wd Jacking system - 2wd Pneumatic radial tires

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