| 摘要 |
<p>In the case of bicycles, the purpose of the new construction is to make maximum use of the momentum produced by pedalling under varying conditions of ground, load and acceleration - thus making bicycling easier. The construction (invention) has 2 possibilities of currently variable adjustments - firstly to reduce the time during which the pedals are in a dead position (top and bottom) and prolong the time, where the pedals are in a position at right angles (compared to top and bottom) (16), which is where maximum effect is gained from the power force, - and secondly to adjust the location of these positions (18) compared to the crank/pedalarm, when various ground conditions, steep rises etc. alters the position of the centre of gravity of pedalling. This invention differs from existing ones by using the 'increased' varying angular velocity, which arises between a drive shaft (1) and a driven shaft (2), when the shafts (as in this invention) are suspended on the same level and in the same direction, and by the special mutual suspension obtained by means of three moving rings (3, 4, 5) (like cardan suspension) of which the change of angle and vertical position of the second ring (4) together with the manually controllable parts (16, 18) produce the above mentioned 'increased' angular velocity and its position in relation to a given centre of gravity. (9) shows an exterior bearing.</p> |
