| 摘要 |
PURPOSE:To strike a wall surface tile efficiently at specified pitch only by moving the striking device along the wall surface tile by providing a hammer stroke device and a hammer striking pitch control device. CONSTITUTION:When the lever 17 of the hammer stroke device 10 comes to the previously specified position where it engages the pin 23 of the hammer striking pitch device 22, a slide shaft 12 has an upward stroke against the spring force of a return spring 15 in the relation between the pin 23 and a stopper pin 20 provided to a block 13. Then, the lock member 16 of the device 10 engages the engaging member 39 of the device 6, so the hammer 35 has an upward stroke against the spring force of a presser spring. When the lock member 16 abuts on a stopper 21, the member 16 turns counterclockwise against the spring force of the spring of the member 16 to disengage from the engaging member 39 of the member 16. Then, the hammer 35 jumps out toward the wall surface tile A with the restoring spring force of the presser spring compressed by the stroke of the hammer 35 and strikes the tile. |
