| 摘要 |
PROBLEM TO BE SOLVED: To provide an explosive force operated driving device which is furnished with a feeding mechanism to advance the cartridge magazine when the driving device is drown out from the base board being pressurized beforehand in the operating time of a trigger, in order to advance a belt form of cartridge magazine by stepwise, after pressing the driving device to a base board. SOLUTION: A feed lever 7 loaded with a spring which is rotatable about the first fulcrum 15 as the center, cooperates with a trigger, and is rotatable about the second fulcrum 8 as the center, is provided. At the free end of the feed lever 7, a feed claw 12 is provided, and the feed claw 12 is made removable from the magazine channel to the outer side, as well as displacable in the longitudinal direction of the magazine channel. By setting the first fulcrum 15 of a transmission element 13 to the feed lever 7 between the second fulcrum 8 and the feed claw 12, only a very small abrasion is generated in the operation of the trigger, and as a result, the trigger can be operated by a small force.
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