Handheld tool for pointing brickwork or grouting tiles or drilling or punching holes or riveting has rotary drive with spindle and nut moving spring-loaded pusher and lever to move tool toward anvil

摘要

The handheld tool has a rotary drive unit (13) with a spindle (17) and a nut (12). The nut moves axially, compressing a spiral spring (14) to move a pusher (8) connected to a lever or knee joint (7). The lever is at an angle to the pusher and to the movable tool holder (5) which is at 90 degrees to the pusher. As the tool moves toward the fixed tool holder or anvil (4), the effective mechanical advantage increases.