| 摘要 |
<p>PURPOSE:To improve traveling performance on coarse road by providing a mechanism for transmitting power continuously to any one axle of front or rear wheel while providing a mechanism for transmitting power selectively to the other axle thereby performing four wheel drive only when required. CONSTITUTION:Upon turning off of an operating lever 19, a dog clutch 16 is separated from a sprocket 101 by a spring 18. Consequently rotary power of an output shaft 9 is transmitted from a sprocket 102 through a chain 112 to a sprocket 72 thus to drive only the axle 62 of rear wheels 4. While upon turning on of operating lever 19, the dog clutch 16 will approach to the sprocket 101 against the spring 18 to gear the dog 16a with the dog 15a. Consequently the rotary force of output shaft 9 is transmitted through sprocket 101 and chain 111 to the sprocket 71 to drive the axle 61 of front wheel 3. Consequently power is transmitted to front and rear wheels 3, 4.</p> |
