EP0826463B1 - Outil pour fixations taraudées - Google Patents

Outil pour fixations taraudées Download PDF

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Publication number
EP0826463B1
EP0826463B1 EP19970306351 EP97306351A EP0826463B1 EP 0826463 B1 EP0826463 B1 EP 0826463B1 EP 19970306351 EP19970306351 EP 19970306351 EP 97306351 A EP97306351 A EP 97306351A EP 0826463 B1 EP0826463 B1 EP 0826463B1
Authority
EP
European Patent Office
Prior art keywords
threaded member
annular portion
projections
internally threaded
tool
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
EP19970306351
Other languages
German (de)
English (en)
Other versions
EP0826463A1 (fr
Inventor
David Paul Adkins
Mark Stuart Ford
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.)
Jaquar Cars Ltd
Original Assignee
Jaquar Cars Ltd
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 Jaquar Cars Ltd filed Critical Jaquar Cars Ltd
Publication of EP0826463A1 publication Critical patent/EP0826463A1/fr
Application granted granted Critical
Publication of EP0826463B1 publication Critical patent/EP0826463B1/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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • 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

Definitions

  • the present invention relates to a tool for tightening and releasing screw threaded fasteners.
  • European Patent Application 0722049 discloses a screw threaded fastener having a locking arrangement in which spring loaded pins engage complimentary formations of internally and externally threaded members.
  • the externally threaded member has an axial bore, the pins being mounted on a spring element and are engaged in apertures through the wall of the externally threaded member, from the internal diameter thereof.
  • an ABS sensor ring is used to secure the hub assembly of the wheel of a motor vehicle, on a tubular axle.
  • the ABS sensor ring has a screw threaded central bore and a series of angularly spaced teeth around its outer periphery.
  • an inductive probe is located radially outwardly of the teeth but in close proximity thereto, so that as the ring rotates, movement of the teeth will generate a signal which is a function of the speed of rotation.
  • the senor ring has to be tightened to a relatively high torque.
  • a torque load spaced axially from the sensor ring there is a problem of the tool twisting and disengaging from the projections.
  • EP-A-0176969 discloses a wrench according to the preamble of independent claim 1 having a spigot formation mounted coaxially, centrally of a socket formation.
  • the spigot formation engages a recess in the head of a screw threaded member to centre the socket formation with respect to the head.
  • a tool for a screw threaded fastener having a externally threaded member, said externally threaded member having an axial bore extending at least part-way along the threaded portion thereof and radial bores extending through the wall of the threaded portion, an internally threaded member, the internally threaded member having a series of projections extending axially from one radial face thereof, said projections being spaced angularly of one another and a locking pin engaging in one of the radial bores in the externally threaded member and being biased outwardly from the axial bore of the externally threaded member into engagement between a pair of consecutive projections on the internally threaded member, said tool comprising a socket member having an annular portion, the internal diameter of the annular portion defining an axially extending formation which cooperates with the axially extending projections on the internally threaded member and by which torque loads may be transmitted from the socket member to the internally threaded member, and a
  • the internally threaded member may be tightened on the externally threaded member using the socket member, until the required torque is approached.
  • the socket may then be removed and the locking pin inserted through the radial bore of the externally threaded member from within the axial bore, so that the locking pin is biased outwardly into engagement with the projections on the externally threaded member.
  • the socket member may then be re-engaged with the projections on the internally threaded member, the bifurcation on the spigot formation serving to accommodate the locking pin and align the radially extending recess on the annular portion of the socket with the radial bore through which the locking pin is located.
  • the internally threaded member may then be further tightened on the externally threaded member, until the locking pin engages between successive projections.
  • Engagement of the spigot in the bore of the externally threaded member will stabilise the socket formation so that the tendency for the socket to twist out of engagement with the projections on the internally threaded member upon application of torque loads at a distance spaced axially from the internally threaded member, will be overcome.
  • the axial extent of the projections may thus be minimised.
  • the bifurcation on the spigot formation diverges outwardly in order to assist in alignment with the locking pin.
  • the socket member may be associated in fixed or detachable relationship to means for applying torque loads, in conventional manner.
  • an ABS sensor ring 10 is secured on a tubular axle 11, a screw thread on the internal diameter 12 of the sensor ring 10 engaging a corresponding screw thread 13 on the external diameter of the tubular axle 11.
  • a series of diametrically opposed bores 14 extend radially through the wall of the tubular axle 11.
  • a series of axially extending angularly spaced projections 15 are provided on the outer radial end face 16 of the sensor ring 10.
  • a locking pin assembly 20 comprises a pair of locking pins 21 disposed one at each end of a U-shaped spring element 22.
  • the locking pins 21 are engaged in a pair of the diametrically opposed bores 14 by compression of the spring element 22 and inserting the pins 21 into the bores 14 from within the bore 23 of the tubular axle 11, so that pins 21 are biased outwardly and engaged between adjacent projections 15 on the sensor ring 10.
  • the sensor ring 10 is thereby prevented from rotating with respect to the tubular axle 11, by means of the locking pins 21.
  • the sensor ring 10 is tightened against the inner race of a wheel bearing assembly (not shown) to locate a wheel hub on the axle 11.
  • a tool 25 for tightening and loosening the ABS sensor ring 10 comprises a socket member 26.
  • the socket member 26 comprises a drive socket 27 by which means, for example a lever or pneumatic brace may be drivingly connected to the socket member 26, in conventional manner.
  • an annular portion 28 defines axially extending formations 29 corresponding to the projections 15 on the sensor ring 10.
  • the socket member 26 may thus be located on the end face 16 of sensor ring 10, so that the axially extending formations 29 on the socket member 26 engage the projections 15 on the sensor ring 10 so as to transmit torque loads from the socket member 26 to the sensor ring 10.
  • Diametrically opposed recesses 30 are provided in the free end of the annular portion 28, to provide a clearance for the locking pins 21.
  • a tubular spigot formation 31 extends coaxially of the annular portion 28 of socket member 26, for engagement in the axial bore 23 of tubular axle 11.
  • the spigot formation 31 may be tapered towards its outer end, to facilitate location in the bore 23 of tubular axle 11.
  • the free end of the spigot formation 31 is bifurcated, the bifurcation 33 diverging outwardly.
  • the bifurcation 33 is aligned diametrically with the recesses 30 in the annular portion 28.
  • the socket member 26 In order to tighten or loosen the ABS sensor ring 10 on the tubular axle 11 when the locking pin assembly 20 is removed, the socket member 26 is located over the end face 16 of the sensor ring 10, so that the spigot formation 31 engages in the bore of the tubular axle 11 and the formations 29 on the internal diameter of the annular portion 28 engage the projections 15 on the sensor ring 10. Torque loads may then be applied to the socket member 26 to tighten or loosen the sensor ring 10.
  • the sensor ring 10 When assembling the sensor ring 10 on the axle 11, the sensor ring 10 is tightened to the required torque by means of a socket member 26.
  • the socket member 26 is then removed from the end face 16 of the sensor ring 10 and the locking pin assembly 20 is inserted into the bore 23 of axle 11, so that the locking pins 21 engage through a pair of diametrically opposed radial bores 14 which are most closely aligned to gaps between adjacent projections 15 on the sensor ring 10.
  • the socket member 26 is then re-engaged with the end face 16 of sensor ring 10, the locking pin assembly 20 within the bore 23 of axle 11 being located in the bifurcation 33 of spigot formation 31.
  • the bifurcation 33 will then guide the socket member 26 onto the face 16 of sensor ring 10, so that the recesses 30 are aligned with the locking pins 21.
  • the sensor ring 10 may then be further tightened until the locking pins 21 are aligned with gaps between adjacent projections 15 and under the influence of the spring element 22 will spring into the gaps to lock the sensor ring.
  • the tool in accordance with the present invention may be used with any screw threaded fasteners in which a locking pin assembly is located in an axial bore of the externally threaded member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Claims (4)

  1. Outil destiné à une fixation filetée à vis comportant un élément fileté à l'extérieur, ledit élément fileté à l'extérieur (11) comportant un alésage axial (23) s'étendant au moins en partie le long de la partie filetée (13) de celui-ci et des alésages radiaux (14) s'étendant au travers de la paroi de la partie filetée (13), un élément fileté à l'intérieur (10), l'élément fileté à l'intérieur (10) comportant une série de saillies (15) s'étendant axialement depuis une face radiale de celui-ci, lesdites saillies (15) étant espacées angulairement les unes des autres et une broche de verrouillage (21) pénétrant dans l'un des alésages radiaux (14) dans l'élément fileté à l'extérieur (11) et étant sollicitée vers l'extérieur depuis l'alésage axial (23) de l'élément fileté à l'extérieur (11) jusqu'en prise entre une paire de saillies adjacentes (15) sur l'élément fileté à l'intérieur (10), ledit outil (26) comprenant un élément de douille (27) comportant une partie annulaire (28), le diamètre intérieur de la partie annulaire définissant des structures s'étendant axialement (29) qui coopèrent avec les saillies s'étendant axialement (15) sur l'élément fileté à l'intérieur (10) et grâce à quoi des charges de couple peuvent être transmises depuis l'élément de douille (27) à l'élément fileté à l'intérieur (10), et une structure de tenon centrale (31) coaxiale à la partie annulaire (28), caractérisé en ce qu'un évidement s'étendant radialement (30) est ménagé dans une face d'extrémité de la partie annulaire (28) afin de recevoir la broche de verrouillage (21) de la fixation à vis, la structure de tenon (31) étant conçue pour s'engager dans l'alésage (23) de l'élément fileté à l'intérieur (11), l'extrémité de la structure de tenon (31) étant à fourche, la fourche (33) étant alignée avec l'évidement s'étendant radialement (30) dans la face d'extrémité de la partie annulaire (28) de l'élément de douille (26).
  2. Outil selon la revendication 1, caractérisé en ce que la fourche (33) dans la structure de tenon centrale (31) diverge vers l'extérieur.
  3. Outil selon la revendication 1 ou 2, caractérisé en ce qu'une paire d'évidements (30) est prévue dans la partie annulaire de l'élément de douille, les évidements étant alignés diamétralement avec la fourche (33).
  4. Outil selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une partie d'extrémité de la structure de tenon s'évase vers l'extérieur, depuis son extrémité libre.
EP19970306351 1996-08-28 1997-08-20 Outil pour fixations taraudées Expired - Lifetime EP0826463B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9617920.5A GB9617920D0 (en) 1996-08-28 1996-08-28 Tool for screw threaded fasteners
GB9617920 1996-08-28

Publications (2)

Publication Number Publication Date
EP0826463A1 EP0826463A1 (fr) 1998-03-04
EP0826463B1 true EP0826463B1 (fr) 2000-07-12

Family

ID=10799020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970306351 Expired - Lifetime EP0826463B1 (fr) 1996-08-28 1997-08-20 Outil pour fixations taraudées

Country Status (3)

Country Link
EP (1) EP0826463B1 (fr)
DE (1) DE69702483T2 (fr)
GB (1) GB9617920D0 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE468255C (de) * 1927-06-22 1928-11-09 Fritz Schott Vereinigter Steck- und Schraubenschluessel
US1854116A (en) * 1930-03-13 1932-04-12 Schebeko Alex De Tool
US3071995A (en) * 1960-10-07 1963-01-08 Jr William E Ruthrauff Tool for fasteners
DE1603762A1 (de) * 1967-04-11 1971-02-18 Daimler Benz Ag Schluessel zum Loesen von Verschraubungen
US4006660A (en) * 1973-09-08 1977-02-08 Yamamoto Byora Co., Ltd. Fastener element
DE3436204A1 (de) * 1984-10-03 1986-04-03 Eberhard Jaeger GmbH & Co KG Verbindungstechnik, 5928 Bad Laasphe Schraube und eindrehwerkzeug hierfuer
DE3807741A1 (de) * 1988-03-09 1989-09-21 Jaeger Eberhard Gmbh Kopfschraube mit einer fuer einen innenantrieb vorgesehenen senkung
GB9500623D0 (en) * 1995-01-12 1995-03-01 Jaguar Cars Screw threaded fastenings

Also Published As

Publication number Publication date
EP0826463A1 (fr) 1998-03-04
GB9617920D0 (en) 1996-10-09
DE69702483T2 (de) 2000-11-09
DE69702483D1 (de) 2000-08-17

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