SE8500549D0 - JUMPER - Google Patents

JUMPER

Info

Publication number
SE8500549D0
SE8500549D0 SE8500549A SE8500549A SE8500549D0 SE 8500549 D0 SE8500549 D0 SE 8500549D0 SE 8500549 A SE8500549 A SE 8500549A SE 8500549 A SE8500549 A SE 8500549A SE 8500549 D0 SE8500549 D0 SE 8500549D0
Authority
SE
Sweden
Prior art keywords
tube
shank
sitting
drill head
centring rings
Prior art date
Application number
SE8500549A
Other languages
Swedish (sv)
Other versions
SE8500549L (en
Inventor
E Brennsteiner
J Obermaier
Original Assignee
Hilti Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti Ag filed Critical Hilti Ag
Publication of SE8500549D0 publication Critical patent/SE8500549D0/en
Publication of SE8500549L publication Critical patent/SE8500549L/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

The rock drill has a drill head (1) with integrally formed shank (4). The shank (4) is surrounded at a radial distance by a tube (7) from the drill head (1) over a large part of its length. The tube (7) carries a conveying helix (12) sitting on its outside. Centring rings (8) sitting in the end areas of the tube (7) serve to hold the tube (7) on the shank (4). At least one of the centring rings (8) can be brought into engagement with the shank (4) via driving elements (6, 14) for holding purposes. <IMAGE>
SE8500549A 1984-02-13 1985-02-06 JUMPER SE8500549L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843405070 DE3405070A1 (en) 1984-02-13 1984-02-13 Rock drill

Publications (2)

Publication Number Publication Date
SE8500549D0 true SE8500549D0 (en) 1985-02-06
SE8500549L SE8500549L (en) 1985-08-14

Family

ID=6227577

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8500549A SE8500549L (en) 1984-02-13 1985-02-06 JUMPER

Country Status (3)

Country Link
CH (1) CH665449A5 (en)
DE (1) DE3405070A1 (en)
SE (1) SE8500549L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820697A1 (en) * 1988-06-18 1989-12-21 Hawera Probst Kg Hartmetall DRILLING TOOL
CN103404269A (en) * 2013-07-18 2013-11-27 吴江市黎里建兴铸件厂 Digging stick
EP3581756A1 (en) 2018-06-11 2019-12-18 HILTI Aktiengesellschaft Drilling device

Also Published As

Publication number Publication date
SE8500549L (en) 1985-08-14
CH665449A5 (en) 1988-05-13
DE3405070A1 (en) 1985-08-14

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8500549-4

Effective date: 19910901