AU472838B2 - Rock drill - Google Patents

Rock drill

Info

Publication number
AU472838B2
AU472838B2 AU58016/73A AU5801673A AU472838B2 AU 472838 B2 AU472838 B2 AU 472838B2 AU 58016/73 A AU58016/73 A AU 58016/73A AU 5801673 A AU5801673 A AU 5801673A AU 472838 B2 AU472838 B2 AU 472838B2
Authority
AU
Australia
Prior art keywords
rock drill
drill
rock
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
AU58016/73A
Other versions
AU5801673A (en
Inventor
Motokura Michio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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
Priority claimed from JP8298972U external-priority patent/JPS4939801U/ja
Priority claimed from JP6988672A external-priority patent/JPS5315002B2/ja
Priority claimed from JP6988872A external-priority patent/JPS5315441B2/ja
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Publication of AU5801673A publication Critical patent/AU5801673A/en
Application granted granted Critical
Publication of AU472838B2 publication Critical patent/AU472838B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • 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
    • E21B1/00—Percussion drilling
    • E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S173/00—Tool driving or impacting
    • Y10S173/04—Liquid operated

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
AU58016/73A 1972-07-14 1973-07-12 Rock drill Expired AU472838B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP8298972U JPS4939801U (en) 1972-07-14 1972-07-14
JPJP69886/72 1972-07-14
JP6988672A JPS5315002B2 (en) 1972-07-14 1972-07-14
JP6988872A JPS5315441B2 (en) 1972-07-14 1972-07-14

Publications (2)

Publication Number Publication Date
AU5801673A AU5801673A (en) 1975-01-16
AU472838B2 true AU472838B2 (en) 1976-06-03

Family

ID=27300169

Family Applications (1)

Application Number Title Priority Date Filing Date
AU58016/73A Expired AU472838B2 (en) 1972-07-14 1973-07-12 Rock drill

Country Status (3)

Country Link
US (1) US3866694A (en)
AU (1) AU472838B2 (en)
SE (1) SE416341B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778605A (en) * 1953-06-30 1957-01-22 Thor Power Tool Co Rock drill
US3490549A (en) * 1968-08-13 1970-01-20 Westinghouse Air Brake Co Hydraulic percussive drill
US3666024A (en) * 1970-07-29 1972-05-30 Richard W Beaumont Rock drill
US3701386A (en) * 1970-12-11 1972-10-31 Dresser Ind Hydraulic drifter

Also Published As

Publication number Publication date
SE416341B (en) 1980-12-15
US3866694A (en) 1975-02-18
AU5801673A (en) 1975-01-16

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