Direct contact position indicators for fastener installation tools for roof truss frameworks and building systems

摘要

PROBLEM TO BE SOLVED: To provide a mounting tool for fixing a top plate to a roof support member or another structural joint so as to screw a fastener at a predetermined angle. It is preferable that the tool includes a rotating driver assembly and an expansion tube assembly. The guide head assembly is attached adjacent to the outer end of the telescopic tube assembly. The positioning or reference structure has the function of appropriately and accurately setting the screwing angle of the fastener. Various indicators attached to the guide head indicate the direct contact position of the positioning surface or the reference structure. The direct contact indicators may be protrusions, flags, LEDs, or acoustic modules. [Selection diagram] FIG. 16A