EP0477576A3 - Impact drilling machine - Google Patents

Impact drilling machine Download PDF

Info

Publication number
EP0477576A3
EP0477576A3 EP19910114511 EP91114511A EP0477576A3 EP 0477576 A3 EP0477576 A3 EP 0477576A3 EP 19910114511 EP19910114511 EP 19910114511 EP 91114511 A EP91114511 A EP 91114511A EP 0477576 A3 EP0477576 A3 EP 0477576A3
Authority
EP
European Patent Office
Prior art keywords
drilling machine
impact drilling
impact
machine
drilling
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.)
Withdrawn
Application number
EP19910114511
Other languages
German (de)
Other versions
EP0477576A2 (en
Inventor
Karl Dr. Dr.-Ing. Wanner
Axel Dipl.-Ing. Dutschk
Joachim Dipl.-Ing. Hecht
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0477576A2 publication Critical patent/EP0477576A2/en
Publication of EP0477576A3 publication Critical patent/EP0477576A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/10—Means for driving the impulse member comprising a cam mechanism
    • B25D11/108—Means for driving the impulse member comprising a cam mechanism the rotation axis of the cam member being parallel but offset to the tool axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP19910114511 1990-09-22 1991-08-29 Impact drilling machine Withdrawn EP0477576A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904030027 DE4030027A1 (en) 1990-09-22 1990-09-22 IMPACT DRILLING MACHINE
DE4030027 1990-09-22

Publications (2)

Publication Number Publication Date
EP0477576A2 EP0477576A2 (en) 1992-04-01
EP0477576A3 true EP0477576A3 (en) 1993-03-10

Family

ID=6414748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910114511 Withdrawn EP0477576A3 (en) 1990-09-22 1991-08-29 Impact drilling machine

Country Status (2)

Country Link
EP (1) EP0477576A3 (en)
DE (1) DE4030027A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08323520A (en) * 1995-05-29 1996-12-10 Makita Corp Vibratory drill
DE10149216A1 (en) 2001-10-05 2003-04-24 Bosch Gmbh Robert Hand-held machine tool e.g. hammer drills etc. ha impact tool driver unit with am element consists of two cam track parts acting in two different axial directions of an intermediate shaft
JP4497040B2 (en) * 2005-07-08 2010-07-07 日立工機株式会社 Vibration drill
DE102008005831A1 (en) 2008-01-24 2009-07-30 Schaeffler Kg Impact mechanism for a machine tool, in particular for a hand tool such as an electric hammer drill or an impact wrench
DE102009015730A1 (en) 2009-03-31 2010-10-07 Schaeffler Technologies Gmbh & Co. Kg Hammer unit for e.g. drill hammer, has hammer loaded by clamping of mechanical spring such as flat spring i.e. flat spring packet, and adjusting mechanism comprising radially adjustable adjusting element, where length of spring is adjusted
DE102009015732A1 (en) 2009-03-31 2010-10-07 Schaeffler Technologies Gmbh & Co. Kg Impact mechanism for machine tool i.e. hand-held power tool, has beater loaded through stretching of mechanical spring i.e. plate spring, where spring has two partial springs that are separated from each other by intermediate elements
DE102009015729A1 (en) 2009-03-31 2010-10-07 Schaeffler Technologies Gmbh & Co. Kg Hammer mechanism for machine tool i.e. hand tool machine, has racquet impinged with mechanical spring, where mechanical spring is designed as torsion springs and spring length of torsion spring is adjusted

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511566A (en) * 1923-07-12 1924-10-14 George L Kollock Electric hammer
US2094185A (en) * 1935-04-29 1937-09-28 Independent Pneumatic Tool Co Hammer attachment for drills
DE2165066A1 (en) * 1971-12-28 1973-07-05 Impex Essen Vertrieb IMPACT DRILL

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511566A (en) * 1923-07-12 1924-10-14 George L Kollock Electric hammer
US2094185A (en) * 1935-04-29 1937-09-28 Independent Pneumatic Tool Co Hammer attachment for drills
DE2165066A1 (en) * 1971-12-28 1973-07-05 Impex Essen Vertrieb IMPACT DRILL

Also Published As

Publication number Publication date
DE4030027A1 (en) 1992-03-26
EP0477576A2 (en) 1992-04-01

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