PNEUMATIC SHOCK MACHINE Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: on the outside the housing has collar. Mechanism for sound suppression and vibration protection placed under deflector above housing is made as cylindrical spring. The diameter of spring loops is maximal for given machine construction. The spring is mounted with preliminary contraction between housing collar and open face end of handle. On the face end adjoining the trunk the valve box has turning whose diameter corresponds to that of trunk. The turning is placed into trunk. Another turning is made on face end from the cover side. The internal turning of corresponding diameter is made on cover face end adjoining the box. The depth of internal turning is more than that of turning on box face end adjoining the cover. Besides, a turning is made on upper face end of cover. Plate-like spring is set up into this turning. The spring has central hole of corresponding diameter. External diameters of cover and valve box are smaller than internal diameter of larger turning of the glass. The plunger of starting device has internal cavity bored out from face end adjoining the handle bottom and has radial holes on one level connecting this cavity with damping chamber in handle. Hole connecting internal cavity of plunger with atmosphere is made in handle bottom, opposite plunger. EFFECT: reduced level of noise and vibration, reduced compressed air consumption and simpler design. 3 dwg