Pneumatic chipping hammer
AssigneeWacker Chemie AG
InventorsPeter Grübl, Martin Brixel
Life of this patent
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Abstract
A pneumatic chisel includes a housing having a double-acting pneumatic cylinder in which a piston including a chisel is movably arranged along a longitudinal axis. The cylinder has a work-side section and a return-side section. The return-side section includes a damping portion and a pressure-equalization opening. The work-side section includes an end-position damping member and a compressed air connection. A compressed air reservoir is connected to the return-side section of the cylinder. A chisel guide housing includes a sealing air chamber. The piston is constructed as one piece with the chisel.
Claims14
A pneumatic chisel, in particular for comminuting polycrystalline silicon, comprising:
- a housing having a double-acting pneumatic cylinder in which a piston comprising a chisel is movably arranged along a longitudinal axis, wherein the cylinder has a work-side section and a return-side section, wherein the return-side section comprises a damping portion and a pressure-equalization opening and wherein the work-side section comprises an end-position damping member and a compressed air connection;
- a compressed air reservoir connected to the return-side section of the cylinder;
- and
- a chisel guide housing comprising a sealing air chamber and an opening for transporting away any abrasion particles formed by the motion of the piston and the chisel, wherein the piston is constructed as one piece with the chisel.
Dependencies are inferred from the claim text.