PNEUMATIC HAMMER Russian patent published in 2016 - IPC B25D9/04 B25D9/08 

FIELD: tools.

SUBSTANCE: invention relates to pneumatic hammers. Hammer comprises a working tool, a casing with outlet holes, a cylindrical housing accommodating a sticker with a through axial hole, which divides the housing cavity into chambers of working and idle strokes, and a cover with an axial multichannel tube intended for compressed air inlet into the working stroke chamber. Casing envelopes the housing to form an outlet chamber. Tube is provided with outlet radial and longitudinal channels and bypass radial and longitudinal channels and tiers of radial bypass channels, squares of cross-sections of which increase towards the idle stroke chamber. Cover has a radial channel. In the housing there is a longitudinal and a radial channels.

EFFECT: as the result reduced is air consumption, increased are impacts frequency and energy.

1 cl, 2 dwg