Title:
【発明の名称】作孔機
Document Type and Number:
Japanese Patent JPH04501446
Kind Code:
A
Abstract:
PCT No. PCT/EP90/01353 Sec. 371 Date Apr. 23, 1991 Sec. 102(e) Date Apr. 23, 1991 PCT Filed Aug. 17, 1990 PCT Pub. No. WO91/02880 PCT Pub. Date Mar. 7, 1991.A drilling device including a hydraulically actuated drive for exerting an oscillatory action on the drive including the drive element, inserting device for hoses conducting a working medium to a pressure-actuated hammer mounted on a front end of the rod and the flushing head at an oscillation angle ranging between 180 DEG -360 DEG . The flushing head is fixed oscilatorily with the drive member and both are swingable about a swivelling axis out of an alignment with the slide and the drive member is formed with a recess for selectively attaching a respective plug-in rod end of the drill rod, so that a torque produced by the drive is transmitted to the drill rod by the drive unit upon interlocking of the flushing head and rod.
Inventors:
Jakob, Wilhelm
Application Number:
JP51213790A
Publication Date:
March 12, 1992
Filing Date:
August 17, 1990
Export Citation:
Assignee:
Rudolf Haushel und Sene Gesellschaft Mitt Beschlenktel Haftung und Company Comandiet Geselschaft
International Classes:
E21B1/26; E21B3/00; E21B17/05; E21B3/02; E21B3/025; E21B4/20; E21B7/02; E21B17/02; E21B17/03; E21B19/22; (IPC1-7): E21B3/02; E21B17/05
Attorney, Agent or Firm:
Toshio Yano (2 outside)