| 摘要 |
Lever action is used for amplifying power when obtaining power from devices that acquire a driving force from human strength or from devices with weak driving forces. When doing so, power transmission mechanisms using only mating gears are not ideal for transportation-related or power generator drive devices because the stroke of the oscillation movement is short, and because increasing the number of revolutions significantly reduces torque and is impractical, a mechanism that does not significantly reduce torque and is capable of multiple revolutions with a single oscillation is desired. Using a set of bevel gears, extending two arms so that one bevel gear can swing on the other fixed bevel gear, machining a spiral groove in the swinging bevel gear so that the swinging bevel gear can be used as a ball screw nut, mounting a rolling bearing on the boss and connecting the rolling bearing to the swing arms with members associated therewith makes it possible for the ball screw bevel gear nut to roll on the tooth surface of the partner bevel gear. Configuring so that the ball screw bolt tilts parallel to the lever at the point of action thereof and inserting the ball screw bolt in the bevel gear nut allows a configuration in which multiple revolutions are possible with a single oscillation. |
