| 摘要 |
A tacker is provided to allow a user to drive a nail to a predetermined point on a wall accurately by loading the nail with blades at the center of a bore formed in a drive guide. A tacker comprises a grip(110), a body(120), a trigger(130), and a drive guide(140). The grip has an air port(112). The body is connected with the air port and advances a pestle(122) forwards with air pressure. The trigger is installed to the lower part of the body and moves the pestle to the front when being pulled. The drive guide is installed to the front part of the body to guide the pestle to move forwards along a bore(143) therein when the user pulls the trigger. The drive guide has a flat portion(144) formed at the front end to load nail with a washer stably. Diameter of the bore is lager than a thick part of the nail as much as 1 to 10%.
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