| 摘要 |
The disclosed tacker involves a spring-impelled staple driver operated by a spring having opposite movable ends, one being operated to compress the spring and the other being releasable to drive the staple driver. The described release means involves a stationary latch and means for pushing the latched part of the staple driver off the latch and, thus, into its guided staple-driving path. A safety device is included which blocks operation of the tacker to eject a staple if the tacker is not pressed against the staple-receiving surface at the moment of release. A one-piece plastic jacket is described enclosing the metal frame of the tacker. The staple-driving effort can be adjusted to adapt the tacker to soft or hard staple-receiving work.
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