ATE92828T1 - VARIABLE TORQUE DRIVE TOOL. - Google Patents

VARIABLE TORQUE DRIVE TOOL.

Info

Publication number
ATE92828T1
ATE92828T1 AT88300825T AT88300825T ATE92828T1 AT E92828 T1 ATE92828 T1 AT E92828T1 AT 88300825 T AT88300825 T AT 88300825T AT 88300825 T AT88300825 T AT 88300825T AT E92828 T1 ATE92828 T1 AT E92828T1
Authority
AT
Austria
Prior art keywords
torque
low
zone
variable torque
displaced
Prior art date
Application number
AT88300825T
Other languages
German (de)
Inventor
Joel S Marks
Original Assignee
Worktools Inc
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 Worktools Inc filed Critical Worktools Inc
Application granted granted Critical
Publication of ATE92828T1 publication Critical patent/ATE92828T1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/16Handles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/46Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00Screwdrivers
    • B25B15/02Screwdrivers operated by rotating the handle
    • B25B15/04Screwdrivers operated by rotating the handle with ratchet action
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00Screwdrivers
    • B25B15/06Screwdrivers operated by axial movement of the handle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Power Steering Mechanism (AREA)
  • Press Drives And Press Lines (AREA)
  • Surgical Instruments (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

A hand-squeeze driver tool which serves to convert squeezing motion into rotary motion on a variable torque basis, with the torque being inversely related to the driving speed. The torque versus driving speed relationship is determined by the position of a squeeze lever (41) as it is displaced from its most extended position. Two distinct zones are provided as the squeeze lever is so displaced, namely a high torque low speed zone, and a low torque high speed zone. The provision of the high torque low speed initial zone, followed by the low torque high speed zone permits the operator intuitively to take advantage of the variable torque feature of the invention, which is provided by a traveling fulcrum which dwells at position F1 and F2 defined by sharp angles in levers (41,53).
AT88300825T 1988-02-01 1988-02-01 VARIABLE TORQUE DRIVE TOOL. ATE92828T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88300825A EP0328799B1 (en) 1988-02-01 1988-02-01 Variable torque driver tool

Publications (1)

Publication Number Publication Date
ATE92828T1 true ATE92828T1 (en) 1993-08-15

Family

ID=8199942

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88300825T ATE92828T1 (en) 1988-02-01 1988-02-01 VARIABLE TORQUE DRIVE TOOL.

Country Status (3)

Country Link
EP (1) EP0328799B1 (en)
AT (1) ATE92828T1 (en)
DE (1) DE3883203T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3822035A1 (en) * 2019-11-14 2021-05-19 Hilti Aktiengesellschaft Handle device for a machine tool
EP3822034A1 (en) 2019-11-14 2021-05-19 Hilti Aktiengesellschaft Method for controlling and regulating a machine tool
EP3822032A1 (en) 2019-11-14 2021-05-19 Hilti Aktiengesellschaft Method for controlling and regulating a machine tool and handle for machine tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524650A (en) * 1983-05-18 1985-06-25 Marks Joel S Squeeze-ratchet tool assembly
US4739838A (en) * 1986-10-28 1988-04-26 Goldmar Manufacturing Co. Hand-squeeze powered motorless driver

Also Published As

Publication number Publication date
EP0328799B1 (en) 1993-08-11
EP0328799A2 (en) 1989-08-23
EP0328799A3 (en) 1990-01-10
DE3883203D1 (en) 1993-09-16
DE3883203T2 (en) 1994-03-17

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties