Invention Grant
- Patent Title: Shank chisel
- Patent Title (中): 柄凿
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Application No.: US12451991Application Date: 2008-05-30
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Publication No.: US08550569B2Publication Date: 2013-10-08
- Inventor: Thomas Wöhrstein , Thomas Lehnert
- Applicant: Thomas Wöhrstein , Thomas Lehnert
- Applicant Address: DE Aichhalden
- Assignee: Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KG
- Current Assignee: Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KG
- Current Assignee Address: DE Aichhalden
- Agency: Pauley Petersen & Erickson
- Priority: DE102007030658 20070702
- International Application: PCT/EP2008/004303 WO 20080530
- International Announcement: WO2009/003561 WO 20090108
- Main IPC: E21C35/197
- IPC: E21C35/197

Abstract:
A shank chisel including a chisel head and a chisel shank, wherein the chisel shank bears a clamping sleeve in which the chisel shank is held captively in a direction of a longitudinal axis and is freely rotatably about the longitudinal axis. To allow the shank chisel to be both assembled and disassembled through a chisel receptacle of a chisel holder that is formed as a receiving bore, according to this invention, the chisel shank bears at its end remote from the chisel head a shank extension, the shank extension has a tool receptacle, and the tool receptacle is accessible by way of a spacing region of the shank extension in the axial direction of the chisel that is set back from the lateral surface of the chisel shank and/or from the lateral surface of the clamping sleeve.
Public/Granted literature
- US20100194177A1 SHANK CHISEL Public/Granted day:2010-08-05
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