| 摘要 |
<p>PURPOSE:To lock a tooth-lacked gear and to release the lock and to give a mechanical initial rotating force to this gear by single parts, by providing an elastic arm part, which presses a part to be pressed of this gear, and a holding arm part, to which a moving iron core is attached, as one body. CONSTITUTION:With respect to a trigger lever 127, a lock arm part 130 with which lock claws 122 and 123 are brought into contact, an elastic arm part 131 which has elasticity to press parts 124 and 125 to be pressed, and a holding arm part 132 are formed into one body with a synthetic resin. The lock arm part 130 and the elastic arm part 131 are formed to an approximately V shape so that they correspond to the lock claw 122 and the part 124 to be pressed in the normal position and the lock claw 123 and the part 125 to be pressed in the reverse position, and they are inserted to the lower face side of a tooth- lacked gear 37. The elastic arm part 131 is curved to an arcuate shape, and a moving iron core 134 is attached freely shakably to the front end of the holding arm part 132 by a shaft 133.</p> |
