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1. WO1997027976 - INSTRUMENT FOR MOUNTING A YOKE-LIKE LOCKING MEMBER OR CIRCLIP ON A SHAFT, AND APPARATUS FOR POSITIONING A CIRCLIP ON SAID INSTRUMENT

Publication Number WO/1997/027976
Publication Date 07.08.1997
International Application No. PCT/IB1997/000043
International Filing Date 23.01.1997
IPC
B25B 27/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
27Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
14for assembling objects other than by press fit or detaching same
20inserting or withdrawing split pins or circlips
CPC
B25B 27/20
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
27Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
14for assembling objects other than by press fit or detaching same
20inserting or withdrawing split pins or circlips
Applicants
  • ETABLISSEMENTS SARRAN S.A. [FR]/[FR] (AllExceptUS)
  • PETIGNAT, Maurice [CH]/[CH]
Inventors
  • PETIGNAT, Maurice
Agents
  • MICHELI & CIE
Priority Data
265/9601.02.1996CH
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) INSTRUMENT FOR MOUNTING A YOKE-LIKE LOCKING MEMBER OR CIRCLIP ON A SHAFT, AND APPARATUS FOR POSITIONING A CIRCLIP ON SAID INSTRUMENT
(FR) INSTRUMENT SERVANT AU MONTAGE, SUR UNE TIGE, D'UN ORGANE D'ARRET EN FORME D'ETRIER DIT 'CIRCLIP', ET APPAREIL SERVANT A LA MISE EN PLACE D'UN CIRCLIP SUR LEDIT INSTRUMENT
Abstract
(EN)
An instrument (1) including an elongate handle (2) with an end portion (4) slidably housing a shaft (6) provided at the end thereof with an upside-down frusto-conical tip (6a). When the tip (6a) is placed at the end of a screw (13) with a ring-shaped groove (14) engageable by a circlip (11) pre-positioned at the base of said tip (6a), longitudinal pressure may be exerted on the instrument to retract the tip (6a) into the end portion (4) counter to a return spring (8). As the tip (6a) is retracted, the circlip (11) slides over the tapering surface of the tip (6a) and is thus opened out so that it passes onto the end of the shaft of the screw (13). Exerting further pressure on the instrument (1) moves the circlip (11) into the ring-shaped groove (14) of the screw (13). The end of the tip (6a) includes a tapered recess (15) engaged by the tapered end (13a) of the screw (13), whereby said tip (6a) and said shaft of the screw (13) are held in perfectly coaxial positions.
(FR)
L'instrument (1) comprend un manche longiforme (2) se terminant par un embout (4) dans lequel coulisse une tige (6) se terminant par un téton (6a) en forme de tronc de cône inversé. Lorsque le téton (6a) est placé en bout d'une vis (13) dans la gorge annulaire (14) de laquelle un circlip (11) doit être engagé, ce circlip ayant été préalablement engagé à la base du téton (6a), une pression longitudinale exercée sur l'instrument amène le téton (6a) à s'éclipser à l'intérieur de l'embout (4), à l'encontre de l'action d'un ressort de rappel (8). Au cours de ce mouvement du téton (6a), le circlip (11) glisse sur la surface conique du téton (6a), ce qui ouvre le circlip (11), lui permettant ainsi de s'engager sur l'extrémité de la tige de la vis (13). La poursuite de la pression exercée sur l'instrument (1) amène le circlip (11) à s'engager dans la gorge annulaire (14) de la vis (13). L'extrémité du téton (6a) présente une creusure conique (15) dans laquelle s'engage l'extrémité (13a) de la vis (13), conique également, ce qui assure une parfaite co-axialité entre le téton (6a) et la tige de la vis (13).
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