IMPACT EFFECT PNEUMATIC MACHINE Russian patent published in 2009 - IPC B25D9/04 B25D17/24 E21C37/24 

FIELD: mechanics.

SUBSTANCE: proposed pneumatic machine comprises a barrel-casing made up of at least three telescopic three parts, i.e. a dynamic, inertial and damping filled with shock-proof and heat-resistant elastomer, an axial handle, a radial handle and intermediate part. The aforesaid barrel accommodates a striker reciprocating therein and is provided with slots. The intermediate part is attached onto the barrel end face and arranged in the said axial handle. The damping part is mounted between the dynamic and inertial parts in axial direction. The dynamic part is arranged in the inertial part to form a circular gap filled with elastomer. The damping part is arranged behind the inertial part and is made from the shockproof and heat-resistant elastomer in the form of the casing extension. The intermediate part features a cylindrical surface with a collar made thereon. The said axial handle has an inner cylindrical surface with a mating collar. The intermediate part is arranged inside the inner cylindrical surface of the axial handle to form therein a quasi-closed damping chamber. The intermediate part outer end face surface has a coaxial cylindrical tail accommodating a starting mechanism plunger. The axial handle bottom has a cylindrical cup to interact with the said cylindrical tail.

EFFECT: higher antivibration safety and reliability.

2 cl, 3 dwg