| 摘要 |
PURPOSE:To make wiring within a free wheel hub simply and certainly by interposing a flexible printed circuit board between the peripheral surface of a drive shaft and the internal circumferential surface of a spindle, and thereby supplying current to electric apparatus incorporated. CONSTITUTION:A motor 19 rotates a handle 22 through a plurality of gears 20, 21, and a cam follower 23 in engagement with the cam face 22a on the handle 22 is moved. As a result, an outer clutch 24 rotating in a single piece with an accel. hub 13 engages with an inner clutch 25 rotating in a single piece with a drive shaft 11 to accomplish four-wheel drive condition. Therein current supply to the motor 19 is made through a flexible printed circuit board (FPC) 30 interposed between the peripheral surface of the drive shaft 11 and the internal circumferential surface of a spindle 12. Wiring part 30C at one end of this FPC 30 is threaded through a hole 12a in the spindle 12, drawn out, and connected with a cable 29 having a connector 29A in a protector 28. |
