GB1501232A - Clutches - Google Patents

Clutches

Info

Publication number
GB1501232A
GB1501232A GB11136/75A GB1113675A GB1501232A GB 1501232 A GB1501232 A GB 1501232A GB 11136/75 A GB11136/75 A GB 11136/75A GB 1113675 A GB1113675 A GB 1113675A GB 1501232 A GB1501232 A GB 1501232A
Authority
GB
United Kingdom
Prior art keywords
groove
roller
rollers
torque transmitting
driving
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
GB11136/75A
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.)
F Jos Lamb Co
Original Assignee
F Jos Lamb Co
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 F Jos Lamb Co filed Critical F Jos Lamb Co
Publication of GB1501232A publication Critical patent/GB1501232A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16D7/10—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with intermediate balls or rollers moving radially between engagement and disengagement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

1501232 Overload release clutches F JOS LAMB CO and J H BREMS 18 March 1975 [6 May 1974] 11136/75 Heading F2C An overload release clutch for connecting driving and driven elements in a single angular driving relationship comprises a single torque transmitting roller 28 carried by a slot 26 in a driving sleeve 16 and urged into engagement with a single axial groove 30 in a driven element 18 by a circumferentially continuous elastic element 44 which is cylindrical in its unstressed state, the element 44 reacts against a roller or rollers 38, 40 diametrically opposite the roller 28 and carried by a slot or slots 34, 36 in the sleeve 16. On overload the torque transmitting roller 28 is cammed out of the groove 30 and during subsequent relative rotation between the driving sleeve 16 and the driven gear 18 the reaction roller or rollers 38, 40 are prevented from torque transmitting engagement with the groove 30 by, as shown, one of the rollers preventing the elastic element 44 from urging the other of the rollers into the groove 30 as it passes the latter. In Figs. 7 and 8 (not shown) a single reaction roller has a length which exceeds that of the groove in the driven element and thus is prevented from entering the groove. The resilient element 44 may, as shown, be provided within the sleeve 16 and urge the torque transmitting roller into a groove 30 in the inner periphery of a surrounding driven gear-wheel 18, or may, Figs. 5-8 (not shown), surround the driving sleeve and urge the torque transmitting roller radially inward into a groove in the external surface of a driven shaft. Additional rollers 46, 48 may be provided to prevent the elastic element from frictional engagement with the driving sleeve. To increase the torque transmitted a pair of cylindrical elastic elements, one within the other, may be provided. The inclined surfaces 32 of the groove 30 are parabolic in section to compensate for the increasing force applied to the rollers by the elastic element 44 during clutch disengagement. Disengagement of the clutch on overload may stop the driving motor.
GB11136/75A 1974-05-06 1975-03-18 Clutches Expired GB1501232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46696174A 1974-05-06 1974-05-06

Publications (1)

Publication Number Publication Date
GB1501232A true GB1501232A (en) 1978-02-15

Family

ID=23853750

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11136/75A Expired GB1501232A (en) 1974-05-06 1975-03-18 Clutches

Country Status (7)

Country Link
JP (1) JPS5425990B2 (en)
BR (1) BR7502204A (en)
CA (1) CA1017271A (en)
FR (1) FR2270637B1 (en)
GB (1) GB1501232A (en)
IT (1) IT1032458B (en)
SE (1) SE412452B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321089A (en) * 1997-01-11 1998-07-15 Bosch Gmbh Robert Hand machine tool with torque responsive safety clutch

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483026B1 (en) * 1980-05-22 1986-12-19 Mecagraph Automation Sarl SYNCHRONOUS TORQUE LIMITER
US5672110A (en) * 1991-09-30 1997-09-30 Ntn Corporation Torque limiter having automatic reset function
JP2017172738A (en) * 2016-03-24 2017-09-28 Thk株式会社 Torque limiter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930752U (en) * 1972-06-20 1974-03-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321089A (en) * 1997-01-11 1998-07-15 Bosch Gmbh Robert Hand machine tool with torque responsive safety clutch
GB2321089B (en) * 1997-01-11 1999-02-03 Bosch Gmbh Robert Hand machine tool

Also Published As

Publication number Publication date
CA1017271A (en) 1977-09-13
JPS5425990B2 (en) 1979-08-31
BR7502204A (en) 1976-03-16
AU8026875A (en) 1976-11-11
SE7502764L (en) 1975-11-07
DE2512987B2 (en) 1977-04-21
JPS50144855A (en) 1975-11-20
FR2270637B1 (en) 1978-10-06
FR2270637A1 (en) 1975-12-05
IT1032458B (en) 1979-05-30
DE2512987A1 (en) 1975-11-27
SE412452B (en) 1980-03-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19950317