| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that the conventional fire power adjusting mechanism has two pieces of push-push mechanisms, therefore, has two heart cams, on the other hand, it is necessary that a cam groove is formed on a block shaped member in the heart cam, therefore, it is difficult to miniaturize the heart cam, as the result, the heart cam is turned to be a relatively large-sized component even as compared to the other members and, because two pieces of heat cams are required, the whole size is further made larger.SOLUTION: One piece of push-push mechanism is disposed and a lock plate which is interlocked with the behavior of a spring rod of the push-push mechanism and is freely swingable is used in place of a second push-push mechanism. |
