GB809519A - Multi-roller safe torque drivers - Google Patents

Multi-roller safe torque drivers

Info

Publication number
GB809519A
GB809519A GB25428/56A GB2542856A GB809519A GB 809519 A GB809519 A GB 809519A GB 25428/56 A GB25428/56 A GB 25428/56A GB 2542856 A GB2542856 A GB 2542856A GB 809519 A GB809519 A GB 809519A
Authority
GB
United Kingdom
Prior art keywords
rollers
drive
torque
safe
driven member
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
GB25428/56A
Inventor
Bernard Raymond Better
John William Lehde
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.)
SCULLY JONES AND CO
Original Assignee
SCULLY JONES AND 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
Priority to CH337054D priority Critical patent/CH337054A/en
Application filed by SCULLY JONES AND CO filed Critical SCULLY JONES AND CO
Priority to GB25428/56A priority patent/GB809519A/en
Publication of GB809519A publication Critical patent/GB809519A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/38—Chucks with overload clutches
    • 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
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
    • F16D43/202—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type
    • F16D43/204—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with intermediate balls or rollers
    • F16D43/208—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with intermediate balls or rollers moving radially between engagement and disengagement

Abstract

809,519. Screwing and tapping. SCULLYJONES & CO. Aug. 20, 1956, No. 25428/56. Class 83 (3). [Also in Group XXIV] A safe-torque clutch for a screw-thread tapping device or the like comprises a driving shell 12 having a degree of resilience and a tapered bore 15, a driven member 17 within the shell with a corresponding tapered-portion 18 and longitudinal cam-ridges 32, and a series of rollers 16 between the two members. The rollers are retained by a cage 30 which, at its lower end, has longitudinal grooves 37 cooperating with balls 36 which also engage in a circumferential groove 35 in the driven member 17. The driven member is located axially in the driving shell 12 by a bearing 21 and a screwed sleeve 23, and is adjusted thereby to vary the value of the safe-torque to be transmitted. A locking-sleeve 38 is provided to hold the parts in adjusted position. In operation, on rotation of the driving shell 12 in one direction, the rollers 16 are moved into wedging positions by a friction drag-ring 29 acting on the cage 30, and torque can be transmitted to the driven member 17. On the safe-torque being exceeded, the rollers 16 ride over the tops of the cam ridges 32 by deforming the shell 12 to break the drive. The rollers 16 are held in a drive-released position intermediate the camridges 32 by one of the balls 36 engaging a blind portion of the groove 35. Reversal of drive will re-couple the drive in the reverse direction until the safe-torque is exceeded in this direction. If over-riding does not occur in the reverse drive, the rollers 16 will be re-set ready for forward drive again, but if overriding does occur then a re-setting operation is necessary.
GB25428/56A 1956-08-20 1956-08-20 Multi-roller safe torque drivers Expired GB809519A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH337054D CH337054A (en) 1956-08-20 1956-08-13 Torque-limited chuck
GB25428/56A GB809519A (en) 1956-08-20 1956-08-20 Multi-roller safe torque drivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25428/56A GB809519A (en) 1956-08-20 1956-08-20 Multi-roller safe torque drivers

Publications (1)

Publication Number Publication Date
GB809519A true GB809519A (en) 1959-02-25

Family

ID=10227511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25428/56A Expired GB809519A (en) 1956-08-20 1956-08-20 Multi-roller safe torque drivers

Country Status (2)

Country Link
CH (1) CH337054A (en)
GB (1) GB809519A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5800069A (en) 1995-07-07 1998-09-01 Obara; Rikuro Compound bearing assembly

Also Published As

Publication number Publication date
CH337054A (en) 1959-03-15

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