Percussion device for pneumatic tool, has one base edge pushing one striker edge across one of rods, when armature turns in one direction, and pin pushed using ends of slit when armature turns in another direction, where armature has walls

摘要

The device has rods (31), an axle (51), an armature (10) with walls (11, 12) and a base (13) formed between the walls. Each wall defines a slit (15), where the wall (12) comprises an opening (18). A striker (20) has a passage (21) with two edges and two parts (24) of percussion formed on an inner surface. Each rod is placed between base edges and striker edges such that one of the base edges pushes one of the striker edges across one of the rods when the armature turns in one direction. A pin is pushed using ends of each of the slit when the armature turns in another direction.