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SE8100461L - OVERLOAD CLUTCH FOR TRANSFER OF A LIMITED TORQUE - Google Patents

OVERLOAD CLUTCH FOR TRANSFER OF A LIMITED TORQUE

Info

Publication number
SE8100461L
SE8100461L SE8100461A SE8100461A SE8100461L SE 8100461 L SE8100461 L SE 8100461L SE 8100461 A SE8100461 A SE 8100461A SE 8100461 A SE8100461 A SE 8100461A SE 8100461 L SE8100461 L SE 8100461L
Authority
SE
Sweden
Prior art keywords
balls
detent openings
drive parts
shaft
overload clutch
Prior art date
Application number
SE8100461A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
N Frick
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 SE8100461L publication Critical patent/SE8100461L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—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
    • B25D16/003—Clutches specially adapted therefor
    • 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
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/035—Surface drives for rotary drilling with slipping or elastic transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
    • F16D7/06—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers
    • F16D7/08—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving axially between engagement and disengagement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

A motor driven hand tool such as a hammer drill incorporates an overload clutch, for minimising the idling torque transmitted to its handle should the working tool jam, comprising two disc-shaped drive parts (2, 3) mounted on a shaft 1, the drive part (3) having a cage (5) retaining balls (4), at different radial spacings relative to the centre of the shaft (1), which register with respective detent openings (14) on the drive part (2). In the event of a predetermined torque being exceeded, the balls (4) move out of the detent openings (14) to move the drive parts (2, 3) apart against the action of compression spring (9) uncoupling the clutch and thereby allowing the drive parts (2, 3) to rotate freely relative to each other subject only to the rolling friction of the balls which are also at different angular spacings so that they reengage the detent openings only once per revolution. <IMAGE>
SE8100461A 1980-02-11 1981-01-26 OVERLOAD CLUTCH FOR TRANSFER OF A LIMITED TORQUE SE8100461L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803004991 DE3004991A1 (en) 1980-02-11 1980-02-11 OVERLOAD CLUTCH FOR TRANSMITTING A LIMITED TORQUE

Publications (1)

Publication Number Publication Date
SE8100461L true SE8100461L (en) 1981-08-12

Family

ID=6094290

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8100461A SE8100461L (en) 1980-02-11 1981-01-26 OVERLOAD CLUTCH FOR TRANSFER OF A LIMITED TORQUE

Country Status (8)

Country Link
JP (1) JPS56120828A (en)
DE (1) DE3004991A1 (en)
ES (1) ES264745Y (en)
FR (1) FR2475658A1 (en)
GB (1) GB2069073A (en)
IT (1) IT1135174B (en)
NL (1) NL8006796A (en)
SE (1) SE8100461L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101018A1 (en) * 1991-01-15 1992-07-16 Monika Seckendorf Safety hub for connecting drive disc - has fixable yet detachable stop for accurate fitting
DE4240086A1 (en) * 1992-11-28 1994-06-01 Werner Dipl Ing Hasenstab Safety hub connecting drive disc to shaft - has stop element forming axially fixed position for precision set disengagement.
DE4404534C2 (en) * 1994-02-12 1997-03-20 Trw Fahrwerksyst Gmbh & Co Ball coupling
US7101300B2 (en) 2001-01-23 2006-09-05 Black & Decker Inc. Multispeed power tool transmission
JP3984465B2 (en) * 2001-12-04 2007-10-03 サンデン株式会社 Power transmission mechanism
EP1702723B1 (en) 2005-03-18 2014-04-02 Black & Decker, Inc. Power tool torque overload clutch
GB0505457D0 (en) * 2005-03-18 2005-04-20 Black & Decker Inc Torque overload clutch for rotary hammer drills
IT1396292B1 (en) * 2009-10-05 2012-11-16 Gribaldi & Salvia S P A SUPPORT AND DRIVE UNIT FOR ONE BLADE OF A ROTARY MULTIPLE DISC MACHINE
WO2012109699A1 (en) * 2011-02-16 2012-08-23 Rambor Pty Limited A gear and clutch assembly
JP5783847B2 (en) * 2011-08-25 2015-09-24 株式会社マキタ Work tools
CN110454518A (en) * 2019-07-25 2019-11-15 浙江省永康市金都工贸有限公司 A clutch of a water drilling rig
DE112020005195T5 (en) 2019-10-28 2022-09-29 Nitto Kohki Co., Ltd. clutch mechanism and power tool
CN211517390U (en) * 2019-11-07 2020-09-18 苏州宝时得电动工具有限公司 Electric hammer tripping mechanism and electric hammer

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696035A (en) * 1950-10-02 1953-08-19 Donald Richard Patrick Jackson Improvements in or relating to overload clutches
FR1131414A (en) * 1953-07-28 1957-02-21 Fords Ltd Torque limiting coupling device
DE1046958B (en) * 1953-07-28 1958-12-18 Fords Ltd Overload clutch
US2866325A (en) * 1957-01-02 1958-12-30 Continental Can Co Overload release clutch
FR1196205A (en) * 1958-05-20 1959-11-23 Gelenkwellenbau Gmbh Sliding coupling with spring loaded balls
US3252303A (en) * 1962-08-06 1966-05-24 Anthony V Weasler Ball type torque limiting clutch
GB1093364A (en) * 1963-07-30 1967-11-29 Fishlow Products Ltd A new or improved over-load clutch or torque limiting device
GB1160671A (en) * 1966-01-01 1969-08-06 Fisholow Prod Ltd Improvements in or relating to Overload Clutches
FR1492376A (en) * 1966-08-02 1967-08-18 Hayes Steel Products Ltd Coupling device disengages in the presence of excess torque
US3599067A (en) * 1970-02-18 1971-08-10 Bernard J Wallis Overload disconnect arrangement
US3722644A (en) * 1972-01-31 1973-03-27 Twin Disc Inc Torque limiting coupling
US3760916A (en) * 1972-04-07 1973-09-25 Horton Mfg Co Inc Single position fluid operated clutch
DE2233130C3 (en) * 1972-07-06 1981-06-11 Robert Bosch Gmbh, 7000 Stuttgart Safety coupling
GB1517693A (en) * 1975-06-12 1978-07-12 Gib Precision Ltd Torque limiting clutch
DE2949990A1 (en) * 1979-12-12 1981-06-19 Hilti AG, 9494 Schaan FRICTION COUPLING TO TRANSFER A LIMITED TORQUE

Also Published As

Publication number Publication date
GB2069073A (en) 1981-08-19
FR2475658A1 (en) 1981-08-14
JPS56120828A (en) 1981-09-22
NL8006796A (en) 1981-09-01
IT1135174B (en) 1986-08-20
DE3004991A1 (en) 1981-08-20
ES264745Y (en) 1983-06-01
IT8119322A0 (en) 1981-01-26
ES264745U (en) 1982-12-01

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