Patent ID: 7753136

Claim:
A reciprocating pneumatic tool mechanism, comprising: a casing, provided internally with a tank, said casing having a rear with an air inlet guiding air pressure and a front with a punch hole; a pneumatically-operated control module, mounted into said tank, being provided with an air supply end; a control switch, assembled externally onto one side of said casing; an actuating module, comprising a plurality of overlapped plates and a piston rod penetrating from said front of said casing, forming a tool assembly portion, said actuating module being provided with an air inlet, the plates being integrally combined into a single body through a perforating locator, said actuating module being arranged slidably into said tank, a periphery of the plates being slidably abutted with an inner wall of said tank, said air inlet of said actuating module being adapted air-tightly with an air supply end of the pneumatically-operated control module, having, at a front end of the actuating module, a protruding tube screwed into a punch hole in said front of said casing; and a vibration-absorbing member, comprising: a built-in buffer between the air inlet of the actuating module and air supply end of pneumatically-operated control module; and a front-mounted buffer between front ends of both actuating module and casing.