PNEUMATIC HAMMER WITH THROTTLE TYPE AIR DISTRIBUTION Russian patent published in 1996 - IPC

FIELD: pneumatic percussion tools. SUBSTANCE: pneumatic hammer with throttle type air distribution has hollow has cylinder, in which striker having central through duct is arranged. The through duct divides the cavity of the cylinder by working-stroke chamber and idle-stroke chamber. The hammer also includes tube with lengthwise duct, engaging with the central duct of the striker, flanged cover, provided by constantly open inlet throttle passage in the idle-stroke chamber and mounted with resting upon end of the cylinder. Sleeve with air supplying duct is removably mounted relative to the cylinder. The also has circuit chamber, annular accumulation chamber, being constantly joined by radial by-passing ducts with radial outlet ducts of air deflection ring having passages in wall and forming outlet chamber, working tool with stem, hood for holding and handle with device for energizing supply of compressed air to circuit chamber. EFFECT: enhanced structure of hammer. 7 cl, 7 dwg