| 摘要 |
PROBLEM TO BE SOLVED: To prevent a load generated during operation of operation means from being placed directly on speed increasing means etc., for electric power generation.SOLUTION: The present invention relates to an electricity generator for door that comprises a buffer device between a press body rotating with operation force of operation means and speed increasing means including a plurality of gears for increasing the rotating speed of a rotary shaft of the electricity generator. The buffer device comprises: a sliding body which moves back by the press body; a first elastic body which is compressed in response to the backward movement of the sliding body; a rack member provided side by side with the sliding body so that elastic force of the first elastic body operates; lock means of locking the rack member while the sliding body moves back to a predetermined position; and a second elastic body which puts the sliding body and rack member back to their initial positions. In response to the backward movement of the sliding body to the predetermined position, the first elastic body is compressed, and the rack member left at its initial position during the backward movement of the sliding body starts moving back as elastic energy of the first elastic body is released once unlocked from the lock means through the sliding body, so that the speed increasing means operates by the actuation of the rack member.SELECTED DRAWING: Figure 7 |
