EP1317997A2 - Manche d'une clef dynamométrique - Google Patents

Manche d'une clef dynamométrique Download PDF

Info

Publication number
EP1317997A2
EP1317997A2 EP02025143A EP02025143A EP1317997A2 EP 1317997 A2 EP1317997 A2 EP 1317997A2 EP 02025143 A EP02025143 A EP 02025143A EP 02025143 A EP02025143 A EP 02025143A EP 1317997 A2 EP1317997 A2 EP 1317997A2
Authority
EP
European Patent Office
Prior art keywords
handle
tube
shaft according
clamping ring
radial
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.)
Granted
Application number
EP02025143A
Other languages
German (de)
English (en)
Other versions
EP1317997A3 (fr
EP1317997B1 (fr
Inventor
Thomas Beyert
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.)
Hazet Werk Hermann Zerver GmbH and Co KG
Original Assignee
Hazet Werk Hermann Zerver GmbH and Co KG
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 Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Publication of EP1317997A2 publication Critical patent/EP1317997A2/fr
Publication of EP1317997A3 publication Critical patent/EP1317997A3/fr
Application granted granted Critical
Publication of EP1317997B1 publication Critical patent/EP1317997B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means

Definitions

  • the invention relates to a shaft for a torque wrench.
  • EP 0 697 268 B1 includes a shaft for a torque wrench to the prior art, which has basically proven in practice.
  • the high quality tool ensuring structural design however, requires a corresponding manufacturing effort. In many areas the daily use, especially in the home improvement sector, but is out various reasons such high quality is not required.
  • the invention is - starting from the prior art - the task to create a shaft for a torque wrench that is easier is constructed, thereby can be manufactured more economically and thus the need of broad circles, preferably home improvement circles, better corresponds.
  • a centric threaded spindle attached to the threaded spindle.
  • the threaded spindle passes through a spindle nut, which in the from the handle relatively rotatable and slidably enclosed tube is fixed.
  • a tensionable compression spring in particular a helical compression spring, which from the attachment end of the threaded spindle opposite end is loaded.
  • This adjusts the torque setting during handling of the torque wrench can not change is a simple Feststellwolfdging the handle provided on the pipe.
  • This consists of at least one radial wedge and an eccentric surface in a rotatable surrounding the handle Clamping ring.
  • An advantageous embodiment of the invention consists in the features of Claim 2. Thereafter, the threaded spindle is in a blind hole in the bottom of the Handgrip used and by a threaded spindle and the bottom set transversely passing through the dowel pin on the handle.
  • the blind hole can a simple blind hole or a threaded hole.
  • the increase of the static friction coefficient ⁇ o may be e.g. be done by the Surface of the tube roughened, coated or longitudinally, transversely or cross-knurled becomes.
  • the connecting member 5 is flattened by a pin 8 at the end of Length section 7 pivotally mounted in the tube 6.
  • a tensioned Compression spring 10 incorporated in the form of a helical compression spring.
  • the Compression spring 10 is based with its the Umschaltknarre 3 facing the end 11 at an acoustically perceptible, not illustrated in detail in the drawing Short-path release 12 coupled to the link 5 which is activated when the set torque value is reached.
  • the other end 13 of the compression spring 10 is located at the bottom 14 of a pipe in the sixth slidable pot-shaped sleeve 15 made of steel.
  • the jacket 16 of the sleeve 15 is in sliding contact with the inner surface 17 of the tube 6.
  • the sleeve 15 summarizes one end 18 of a threaded spindle 19.
  • the end 18 is determined by a transversely directed clamping pin 20 in the sleeve 15.
  • the threaded spindle 19 passes through a facing away from the Umschaltknarre 3 End 9 of the tube 6 in this fixed by means of fixing pins 21 spindle nut 22.
  • the other end 23 of the threaded spindle 19 sums in a blind hole 24 in the bottom 25 of a circumferentially ergonomically designed handle 26 an impact-resistant plastic.
  • This end 23 of the threaded spindle 19 is by a threaded spindle 19 and the bottom 25 transversely interspersed Fixing pin 27 fixed.
  • the handle 26 encloses the circumferentially smooth tube 6 relatively rotatable and sliding. At the end facing away from the bottom 25 has the Handle 26 circumferentially a cylindrical bearing surface 28, on which a clamping ring 29 is pushed with located on the periphery of the handle grooves 30.
  • the surface of the tube 6 can be roughened to increase the static friction value ⁇ 0 .
  • a suitable coating may be provided with a knurling in the form of a longitudinal, transverse or
  • the clamping ring 29 is on the one hand by the over the bearing surface 28 for the Clamping ring 29 protruding portions 39 of the radial wedges 33 ( Figures 3 and 4) and on the other hand by an end-side gradation 40 in the clamping ring 29 and a radial collar 41 on the handle 26 out ( Figure 2).
  • FIG. 2 Inner diameter extended frontal longitudinal section 42 is provided (FIG. 2), into which an adjustment sleeve 43 enclosing the tube 6 in a slidable manner used axially displaceable.
  • the adjusting sleeve 43 is threaded through a threaded pin 44 connected to the handle 26, which in a radially extending Threaded hole 45 inserted in the wall 31 of the handle 26 is.
  • the handle 26 serves both as an ergonomically designed handling element for force application as well as torque adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP02025143A 2001-12-06 2002-11-09 Manche d'une clef dynamométrique Expired - Lifetime EP1317997B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20119801U 2001-12-06
DE20119801U DE20119801U1 (de) 2001-12-06 2001-12-06 Schaft für einen Drehmomentschlüssel

Publications (3)

Publication Number Publication Date
EP1317997A2 true EP1317997A2 (fr) 2003-06-11
EP1317997A3 EP1317997A3 (fr) 2006-09-13
EP1317997B1 EP1317997B1 (fr) 2009-12-09

Family

ID=7964863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025143A Expired - Lifetime EP1317997B1 (fr) 2001-12-06 2002-11-09 Manche d'une clef dynamométrique

Country Status (4)

Country Link
EP (1) EP1317997B1 (fr)
AT (1) ATE451201T1 (fr)
DE (2) DE20119801U1 (fr)
ES (1) ES2336894T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1502708A1 (fr) * 2003-07-31 2005-02-02 Hazet-Werk Hermann Zerver GmbH & Co. KG Clé dynamométrique
US20230202006A1 (en) * 2021-12-27 2023-06-29 Shanghai UB Machinery Co, Ltd. Magnetically locking mechanism of a torque wrench

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI736398B (zh) * 2020-08-21 2021-08-11 和嘉興精密股份有限公司 扭力結構

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667800A (en) 1951-02-12 1954-02-02 George C Jenkins Adjustable break-through torque wrench
EP0697268B1 (fr) 1994-08-16 1998-09-09 Hazet-Werk Hermann Zerver GmbH & Co. KG Dispositif de verrouillage reversible pour une poignée de réglage tournable
DE20114265U1 (de) 2001-08-29 2001-11-15 Hazet-Werk Hermann Zerver GmbH & Co. KG, 42857 Remscheid Drehmomentschlüssel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704472A (en) * 1955-03-22 Mined torque release means
US5129293A (en) * 1991-06-10 1992-07-14 Precision Instruments, Inc. Torque control mechanism for wrenches and the like
US5662012A (en) * 1995-11-07 1997-09-02 Consolidated Devices, Inc. Torque wrench structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667800A (en) 1951-02-12 1954-02-02 George C Jenkins Adjustable break-through torque wrench
EP0697268B1 (fr) 1994-08-16 1998-09-09 Hazet-Werk Hermann Zerver GmbH & Co. KG Dispositif de verrouillage reversible pour une poignée de réglage tournable
DE20114265U1 (de) 2001-08-29 2001-11-15 Hazet-Werk Hermann Zerver GmbH & Co. KG, 42857 Remscheid Drehmomentschlüssel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1502708A1 (fr) * 2003-07-31 2005-02-02 Hazet-Werk Hermann Zerver GmbH & Co. KG Clé dynamométrique
US20230202006A1 (en) * 2021-12-27 2023-06-29 Shanghai UB Machinery Co, Ltd. Magnetically locking mechanism of a torque wrench

Also Published As

Publication number Publication date
DE50214065D1 (de) 2010-01-21
ATE451201T1 (de) 2009-12-15
DE20119801U1 (de) 2002-02-14
EP1317997A3 (fr) 2006-09-13
EP1317997B1 (fr) 2009-12-09
ES2336894T3 (es) 2010-04-19

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