ATE555880T1 - ROTARY DRUM - Google Patents

ROTARY DRUM

Info

Publication number
ATE555880T1
ATE555880T1 AT08708789T AT08708789T ATE555880T1 AT E555880 T1 ATE555880 T1 AT E555880T1 AT 08708789 T AT08708789 T AT 08708789T AT 08708789 T AT08708789 T AT 08708789T AT E555880 T1 ATE555880 T1 AT E555880T1
Authority
AT
Austria
Prior art keywords
anvil
tool shaft
percussion
rotary
rotary percussion
Prior art date
Application number
AT08708789T
Other languages
German (de)
Inventor
Nicolantonio Aldo Di
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE555880T1 publication Critical patent/ATE555880T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/02—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
    • B25B21/026—Impact clutches
    • 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
    • B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
    • B25D11/106—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool cam member and cam follower having the same shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2216/00—Details of portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention relates to a rotary percussion mechanism (1) for an electric tool, having a drivable rotary percussion weight (3) with at least one hammer surface (15), and having an anvil (16) that can be rotated with the rotary percussion weight (3) about a common rotational axis (13) and is operatively connected to a tool shaft (2) to transmit torque, said anvil having at least one anvil surface (16). Said rotary percussion mechanism also has a displacement mechanism comprising a return spring (9), said mechanism being designed to cause a combined relative motion in the axial and circumferential directions under tension of the return spring (9) between the rotary percussion weight (3) and the anvil (10), resulting in a percussion effect of the hammer surface (15) on the anvil surface (16) in the circumferential direction, when the tool shaft (2) demands increased torque. According to the invention, the tool shaft (2) is axially displaceably supported, and the anvil surface (16) and/or the hammer surface (15) is/are aligned and/or designed such that a percussion of the hammer surface (15) on the anvil surface (16) results in a displacement of the tool shaft (2) in the axial direction, in addition to a rotary impulse on the tool shaft (2) in the circumferential direction.
AT08708789T 2007-03-28 2008-02-07 ROTARY DRUM ATE555880T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007014757A DE102007014757A1 (en) 2007-03-28 2007-03-28 Rotary percussion
PCT/EP2008/051509 WO2008116691A1 (en) 2007-03-28 2008-02-07 Rotary percussion mechanism

Publications (1)

Publication Number Publication Date
ATE555880T1 true ATE555880T1 (en) 2012-05-15

Family

ID=39326716

Family Applications (1)

Application Number Title Priority Date Filing Date
AT08708789T ATE555880T1 (en) 2007-03-28 2008-02-07 ROTARY DRUM

Country Status (5)

Country Link
EP (1) EP2132005B1 (en)
AT (1) ATE555880T1 (en)
DE (1) DE102007014757A1 (en)
ES (1) ES2382497T3 (en)
WO (1) WO2008116691A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103213103B (en) * 2012-01-19 2015-07-15 南京德朔实业有限公司 Fastener tool
US9272400B2 (en) * 2012-12-12 2016-03-01 Ingersoll-Rand Company Torque-limited impact tool
EP2759378B1 (en) * 2013-01-28 2015-11-04 Chervon (HK) Limited A multi-tool for fasteners
JP2015024474A (en) * 2013-07-26 2015-02-05 日立工機株式会社 Impact tool
DE102016203389A1 (en) * 2016-03-02 2017-09-07 Robert Bosch Gmbh Mechanical rotary impact mechanism for a hand tool machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049273A (en) 1932-10-06 1936-07-28 Robert H Pott Impact tool
FR1057422A (en) * 1952-05-27 1954-03-08 Tightening wrench
US2940565A (en) * 1956-05-14 1960-06-14 Schodeberg Carl Theodore Power driven impact tool
DE1478809A1 (en) 1962-09-15 1969-02-20 Bosch Gmbh Robert Motor-driven impact wrench
US20060024141A1 (en) 2004-07-30 2006-02-02 Hilti Aktiengesellschaft Power tool with an intermittent angular torque pulse

Also Published As

Publication number Publication date
EP2132005B1 (en) 2012-05-02
EP2132005A1 (en) 2009-12-16
WO2008116691A1 (en) 2008-10-02
ES2382497T3 (en) 2012-06-08
DE102007014757A1 (en) 2008-10-02

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