GB402792A - Improvements in or relating to clutches for the driving of tools - Google Patents

Improvements in or relating to clutches for the driving of tools

Info

Publication number
GB402792A
GB402792A GB15951/33A GB1595133A GB402792A GB 402792 A GB402792 A GB 402792A GB 15951/33 A GB15951/33 A GB 15951/33A GB 1595133 A GB1595133 A GB 1595133A GB 402792 A GB402792 A GB 402792A
Authority
GB
United Kingdom
Prior art keywords
spring
shaft
june
springs
nut
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
GB15951/33A
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 AG
Robert Bosch GmbH
Original Assignee
Robert Bosch AG
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 AG, Robert Bosch GmbH filed Critical Robert Bosch AG
Publication of GB402792A publication Critical patent/GB402792A/en
Expired legal-status Critical Current

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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

402,792. Overload-release clutches. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. June 2, 1933, No. 15951. Convention date, June 10, 1932. [Class 80 (ii).] In a motordriven screwdriver embodying a dog clutch comprising a member 2 secured to the driving shaft 1 and a spring- loaded driven member 4 which is adapted to slip when the resistance to movement of the tool reaches a predetermined amount dependent on the spring loading, the latter is provided by two springs 8, 9 of different strengths adjustable by means of a nut 12 threaded on the shaft 1 and acting through a sleeve 10 feathered on the shaft. In the unstressed condition the weaker spring 8 is longer than the stronger spring 9. Thus, in tightening up the nut 12, which has locking projections co-operating with grooves 13 on the sleeve 10, only the weaker spring 8 is at first stressed and subsequently both springs are compressed. The member 4 is adapted to be engaged with the axially-movable tool spindle 6 by dogs 5, 7.
GB15951/33A 1932-06-10 1933-06-02 Improvements in or relating to clutches for the driving of tools Expired GB402792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE402792X 1932-06-10

Publications (1)

Publication Number Publication Date
GB402792A true GB402792A (en) 1933-12-08

Family

ID=6413506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15951/33A Expired GB402792A (en) 1932-06-10 1933-06-02 Improvements in or relating to clutches for the driving of tools

Country Status (1)

Country Link
GB (1) GB402792A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194370A (en) * 1962-07-25 1965-07-13 Skil Corp Rotary driving tool with variable pitch spring
GB2145951A (en) * 1980-08-19 1985-04-11 Titan Tool Co Automatic stud driver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194370A (en) * 1962-07-25 1965-07-13 Skil Corp Rotary driving tool with variable pitch spring
GB2145951A (en) * 1980-08-19 1985-04-11 Titan Tool Co Automatic stud driver

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