EP0697268B1 - Dispositif de verrouillage reversible pour une poignée de réglage tournable - Google Patents

Dispositif de verrouillage reversible pour une poignée de réglage tournable Download PDF

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Publication number
EP0697268B1
EP0697268B1 EP95110260A EP95110260A EP0697268B1 EP 0697268 B1 EP0697268 B1 EP 0697268B1 EP 95110260 A EP95110260 A EP 95110260A EP 95110260 A EP95110260 A EP 95110260A EP 0697268 B1 EP0697268 B1 EP 0697268B1
Authority
EP
European Patent Office
Prior art keywords
handle
tube
sleeve
handle according
turning ring
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 - Lifetime
Application number
EP95110260A
Other languages
German (de)
English (en)
Other versions
EP0697268A1 (fr
Inventor
Gerd Fierus
Udo Fierus
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 EP0697268A1 publication Critical patent/EP0697268A1/fr
Application granted granted Critical
Publication of EP0697268B1 publication Critical patent/EP0697268B1/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 handle, preferably one Torque wrench that can be rotated on a tube using for adjustment purposes arranged in a circular cylindrical surface and in its respective Rotational position relative to the pipe through a arranged in the handle and adjustable in the radial direction to the tube Locking piece can be fixed, the Has lateral surface of the tube extending in the axial direction depressions and the locking piece can be rotated by limited to one on the handle stored twist ring trained, curved control surfaces between a release position and a locking position is adjustable.
  • the respective trigger torque is determined by Adjusting a compression spring is adjusted by using a threaded spindle connected handle rotated relative to the housing of the torque wrench becomes.
  • the housing is usually a circular in diameter Pipe formed that at the front end of the square drive and the rear end carries the handle.
  • Handle is not only required for torque wrenches, but also with other hand tools, for example grip pliers.
  • the invention has for its object to provide a rotatable handle for adjustment purposes on a tube with a circular cylindrical outer surface of the type defined, which can be fixed with little technical effort and thus inexpensive almost continuously and safely with simple handling on the tube.
  • the solution to this problem by the invention is characterized in that the locking piece is designed as a U-shaped claw, which engages in the locking position with the front edges of its legs in a secantial direction in the recesses in the lateral surface of the tube.
  • the handle is on one end with a circular cylindrical bearing surface for the rotating ring formed by a sleeve that can be fixed on the handle in the axial direction is held.
  • This sleeve is according to another feature of the invention via at least one resilient tongue arranged on the handle, which with a pin engages from the inside in a pin opening of the sleeve, in the axial and fixed in the circumferential direction on the handle.
  • the sleeve can be used with a Scale.
  • the invention proposes the handle with the Bearing surface for the rotating ring and preferably with two resilient tongues To make the sleeve in one piece from plastic.
  • At least two opposing claws are arranged in the handle. According to a further feature of the invention, these are in the direction of their Release position each loaded by a return spring to ensure a safe return to ensure from the locking position.
  • the rotating ring can be rotated to a limited extent mounted on the handle, the angle of rotation of the rotating ring preferably limited by stops on the rotating ring and / or on the handle is.
  • the invention proposes the rotating ring in the to hold each end position releasably by a detent spring.
  • the invention results in a structurally simple and thus inexpensive to manufacture device for releasably fixing an adjustment almost continuously rotatable handle on a tube with circular cylindrical Shell surface, which is a reliable setting in every position guaranteed.
  • a torque wrench handle Handle 1 is on the rear end of a shaft of the torque wrench serving tube 2 with a circular cylindrical surface rotatably mounted.
  • the handle 1 is used to set the respective trigger torque of the torque wrench, not shown.
  • This adjustment of the release torque is carried out by a threaded rod 3, which is in the rear End of handle 1 adjustable, but non-rotatable with handle 1 connected is.
  • this connection is made with the aid of an adjusting element 4, which in the embodiment made of plastic Handle 1 is injected and is non-rotatably connected to it.
  • this adjusting element 4 loose coupling pieces 5 are arranged, which an end toothing cooperate with the end toothing of a clutch disc 6, which in turn cannot rotate on a polygonal section 3a the threaded rod 3 is arranged and held by a fixing nut 7.
  • the adjustment element 4 is arranged on the threaded rod 3 by a threaded sleeve 8, which is arranged on a threaded rod 3
  • Base plate 9 supports and the basic setting of the torque wrench serves.
  • the torque wrench can be used with the components described above can be set. Access to the components is then granted by a the rear handle end closing cap 10 is blocked.
  • rotatable handle 1 is at the front end with a circular cylindrical Bearing surface 1a formed on which a rotating ring 11 can be rotated to a limited extent is stored.
  • a sleeve 12 is provided which is non-rotatable on Handle 1 is held, with the help of resilient tongues 1b, the in the embodiment in one piece to the front end of the bearing surface 1a forming extension of the handle 1 are formed.
  • Each tongue 1b is provided with a radially outwardly pointing pin 1c, which is from the inside engages in a pin opening of the sleeve 12 and in this way this Sleeve 12 both in the axial direction and in the circumferential direction on the handle 1 sets such that the rotating ring 11 between the sleeve 12 and handle 1 can twist.
  • locking pieces are arranged in the handle, each formed as a U-shaped claw 13 in the embodiment are. Each of these claws 13 is by a return spring acting radially outwards 14 charged.
  • a detent spring 15 is also arranged in the rotating ring 11, the effect of which will be described below.
  • FIGS. 2a and 2b, and 3a and 3b each in cross section U-shaped claw 13 with its legs 13a in Handle 1 formed recesses so that the front edges of the legs 13a come into contact with the circular cylindrical outer surface of the tube 2 can, which is provided in the area of the claws 13 with depressions 2a.
  • These depressions 2a are in the embodiment as in the longitudinal direction of the Rohres 2 running, created by knurling grooves that have a very small distance from each other in the circumferential direction, so that they an almost infinitely variable setting of the rotatable handle 1 on the Allow tube 2.
  • the rotating ring acts 11 via curved control surfaces 11a and 11b with the web 13b of the respective claw 13 together.
  • the control surfaces 11a press the claws 13th with the edges of their legs 13a in the recesses 2a of the tube 2.
  • the handle 1 is fixed on the tube 2 so that it cannot be rotated.
  • 11 stops 11c are provided on the rotating ring, with stops 1d interact on the handle 1 and the angle of rotation limit about 90 °, as can be seen from FIGS. 2a and 2b.
  • the respective End position namely in the locking position according to FIG. 2a and in the 2b engages between the stops 11c on the rotating ring 11 arranged catch spring 15 in catch recesses 1e, which on Handle 1 are formed. This ensures that not only the respective end position is non-positively secured, but that the Users of the handle are advised by an acoustic signal is that the rotating ring 11 is in the desired end position.

Claims (9)

  1. Poignée (1), notamment d'une clé dynamométrique, qui est disposée pour pouvoir s'ajuster en tournant sur un tube (2) à surface d'enveloppe cylindrique circulaire, et qui peut être immobilisée dans sa position de rotation par rapport au tube (2) par une pièce d'arrêt disposée dans la poignée et ajustable en direction radiale par rapport au tube, dans laquelle la surface d'enveloppe du tube (2) présente des rainures (2a) qui se développent en direction axiale et dans laquelle la pièce d'arrêt est ajustable entre une position de libération et une position d'arrêt par des surfaces de direction (11a, 11b) en forme de courbe réalisées sur un anneau de torsion (11) logé sur la poignée (1) de façon à pouvoir tourner de façon limitée,
       caractérisée en ce que la pièce d'arrêt est formée par une griffe (13) en forme de U, laquelle entre en prise, dans la position d'arrêt, par l'intermédiaire des arêtes de front de ses côtés latéraux (13a), en direction de la sécante, avec les rainures (2a) de la surface d'enveloppe du tube (2).
  2. Poignée selon la revendication 1, caractérisée en ce que la poignée (1) est réalisée à une extrémité comme surface portante cylindrique circulaire (1a) pour l'anneau de torsion (11), lequel est maintenu en direction axiale par une douille (12) immobilisable sur la poignée (1).
  3. Poignée selon la revendication 2, caractérisée en ce que la douille (12) est immobilisée en direction axiale et dans la direction radiale sur la poignée (1) au travers d'au moins une lame élastique (1b) disposée sur la poignée (1) et qui s'engrène avec un tenon (1c) par l'intérieur dans une ouverture de tenon de la douille (12).
  4. Poignée selon la revendication 2, caractérisée en ce que la douille (12) est pourvue d'une graduation.
  5. Poignée selon l'une des revendications 2 à 4, caractérisée en ce que la poignée (1), avec la surface portante (1a) pour l'anneau de torsion (11) et avec de préférence deux lames élastiques (1b) pour la fixation de la douille (12), est fabriquée en une seule pièce de matière plastique.
  6. Poignée selon la revendication 1, caractérisée en ce qu'au moins deux griffes opposées l'une à l'autre (13) sont disposées dans la poignée (1).
  7. Poignée selon les revendications 1 ou 6, caractérisée en ce que la griffe (13) est sous tension en direction de sa position de libération par un ressort de rappel (14).
  8. Poignée selon l'une des revendications 1 à 7, caractérisée en ce que l'angle de torsion de l'anneau de torsion (11) est limité par des butées (11c, 1d) sur l'anneau de torsion (11) et/ou sur la poignée (1).
  9. Poignée selon l'une des revendications 1 à 8, caractérisée en ce que l'anneau de torsion (11) est maintenu de façon à pouvoir être libéré dans sa position finale par un ressort d'encliquetage (15).
EP95110260A 1994-08-16 1995-07-01 Dispositif de verrouillage reversible pour une poignée de réglage tournable Expired - Lifetime EP0697268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4428972 1994-08-16
DE4428972A DE4428972C1 (de) 1994-08-16 1994-08-16 Vorrichtung zur lösbaren Festlegung eines zu Verstellzwecken verdrehbaren Handgriffes

Publications (2)

Publication Number Publication Date
EP0697268A1 EP0697268A1 (fr) 1996-02-21
EP0697268B1 true EP0697268B1 (fr) 1998-09-09

Family

ID=6525777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110260A Expired - Lifetime EP0697268B1 (fr) 1994-08-16 1995-07-01 Dispositif de verrouillage reversible pour une poignée de réglage tournable

Country Status (3)

Country Link
EP (1) EP0697268B1 (fr)
DE (2) DE4428972C1 (fr)
ES (1) ES2122403T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1317997A2 (fr) 2001-12-06 2003-06-11 Hazet-Werk Hermann Zerver GmbH & Co. KG Manche d'une clef dynamométrique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103372837A (zh) * 2012-04-19 2013-10-30 天纳克-埃贝赫（大连）排气系统有限公司 一种消除扭矩误差的扳手
CN103921243A (zh) * 2014-04-24 2014-07-16 周维保 可更换扳头的手摇扳手
CN105459004B (zh) * 2014-09-11 2017-07-04 瞬丰实业有限公司 扭矩调节装置及一种具有此扭矩调节装置的工具
PL2998071T3 (pl) * 2014-09-18 2019-07-31 Matatakitoyo Tool Co., Ltd. Klucz z blokowalnym mechanizmem ustawiającym moment obrotowy
EP3441189B1 (fr) * 2017-08-08 2020-03-18 Matatakitoyo Tool Co., Ltd. Appareils de réglage de couple

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704472A (en) * 1955-03-22 Mined torque release means
US2768547A (en) * 1954-04-28 1956-10-30 Printing Machinery Company Predetermined torque release hand tool
US3016773A (en) * 1958-12-12 1962-01-16 Woods Robert Glen Predetermined torque release wrench
US3270594A (en) * 1964-07-29 1966-09-06 Torque Controls Inc Predetermined torque release wrench
DE3143080C2 (de) * 1981-10-30 1983-09-29 Fa. Carl Freudenberg, 6940 Weinheim Stielbefestigung, insbes. für Besen
DE3518661C2 (de) * 1985-05-24 1994-04-28 Hans Mesenhoeller Schraubenschlüssel
US4709602A (en) * 1987-01-16 1987-12-01 Consolidated Devices, Inc. Hand grip drive for torque wrenches
DE9208547U1 (fr) * 1992-06-25 1992-09-03 Lou, Lie-Whu, Taichung, Tw
SE470449B (sv) * 1992-08-31 1994-04-11 Sandvik Ab Låsbar spännanordning för fjäder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1317997A2 (fr) 2001-12-06 2003-06-11 Hazet-Werk Hermann Zerver GmbH & Co. KG Manche d'une clef dynamométrique
EP1317997A3 (fr) * 2001-12-06 2006-09-13 Hazet-Werk Hermann Zerver GmbH & Co. KG Manche d'une clef dynamométrique

Also Published As

Publication number Publication date
ES2122403T3 (es) 1998-12-16
DE4428972C1 (de) 1996-02-08
DE59503511D1 (de) 1998-10-15
EP0697268A1 (fr) 1996-02-21

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