EP0343039A1 - Wrenches for removing threaded filters or the like - Google Patents

Wrenches for removing threaded filters or the like Download PDF

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Publication number
EP0343039A1
EP0343039A1 EP89401300A EP89401300A EP0343039A1 EP 0343039 A1 EP0343039 A1 EP 0343039A1 EP 89401300 A EP89401300 A EP 89401300A EP 89401300 A EP89401300 A EP 89401300A EP 0343039 A1 EP0343039 A1 EP 0343039A1
Authority
EP
European Patent Office
Prior art keywords
tool
handle
ring
axis
loosening
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
EP89401300A
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German (de)
French (fr)
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EP0343039B1 (en
Inventor
Jean Pages
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.)
Safran Electrical and Power SAS
Original Assignee
Labinal SA
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Filing date
Publication date
Application filed by Labinal SA filed Critical Labinal SA
Publication of EP0343039A1 publication Critical patent/EP0343039A1/en
Application granted granted Critical
Publication of EP0343039B1 publication Critical patent/EP0343039B1/en
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
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/04—Handle constructions telescopic; extensible; sectional
    • B25G1/043—Handle constructions telescopic; extensible; sectional for screwdrivers, wrenches or spanners
    • 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
    • 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
    • B25B23/16—Handles
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
    • B25B27/0042—Tools for removing or replacing filters or for draining oil; Tools for setting or loosening closure means for radiators, batteries, or the like

Definitions

  • the invention relates to keys for loosening filters removably mounted by screwing on rigid supports, filters comprising a filter element inside a fluted hood in a bell or the like.
  • cover in the present text and in the claims which follow a cover comprising a cylindrical skirt connected to a bottom, generally curved outwards, cover for which the area of the skirt, adjacent to the bottom, is deformed so as to present a ring of longitudinal indentations distributed around said zone, these indentations being able either to be grooves or notches hollowed out towards the inside of the skirt and then making up grooves proper as well as flats delimiting a prism with a section polygonal.
  • a key comprising a rigid ring suitable for surrounding the grooved portion of the cover and having a non-circular internal contour cooperating with the grooves for the purpose of angular attachment, said ring being connected rigidly to a rigid radial handle.
  • the object of the invention is, above all, to overcome this drawback by excluding any possibility of exerting significant tightening torques using the wrenches considered without in any way reducing the importance of the loosening torques applicable with these keys.
  • wrenches comprising a rigid annular tool suitable for surrounding the heads of the bolts and having a non-circular internal contour suitable for cooperating with these heads for the purpose of angular attachment, a rigid handle mounted pivoting on the tool, about an axis linked to this tool and parallel to that of the tool in such a way that the angular displacements of this handle are limited by bracing from its radial position or from a substantially such position, for the direction corresponding to the loosening and on the contrary remain free in the opposite direction from this position, and coding means provided on the tool so that the wrench can only overlap the heads of the bolts in the direction corresponding to the above effects.
  • the pivot axis of the handle is arranged in the middle of the length of this handle so that the lever arm available for tightening is equal to half that available for loosening.
  • the keys of the kind in question according to the invention are essentially characterized in that the pivot axis of the handle on the tool is arranged in the immediate vicinity of this tool.
  • the handle includes an angle iron, a wing of which extends parallel to the pivot axis of said handle and has a clean end section to be worn against the tool, section constituting the above angular end-of-travel stop and the another wing is crossed by the pivot axis and drawn and mounted so as to be able to slide in rotation against an ear secured to the tool, - in a key according to the previous paragraph, the handle is mounted on the ear using a rivet, - the coding means consist of at least one bent tab connected to the tool, a tab suitable for covering each filter and resting on the bottom of the latter when the tool is placed around the grooved portion of the cover of this filter, -
  • the polarizing means according to the preceding paragraph consist of two bent legs symmetrical to each other with respect to the plane comprising the axis of the tool and that of the handle.
  • the invention includes, apart from these main provisions, certain other provisions which are preferably used at the same time and which will be more explicitly discussed below.
  • Figures 1 and 2 of this drawing show respectively in side view, portions cut axially along I-I, Figure 2 and in end view according to arrow II of Figure 1, a release key established according to the invention.
  • the key considered 1 is intended to loosen filters, such as oil filters for vehicle engines, which have been previously mounted on their supports by tightening for the purpose of screwing.
  • the filter is delimited externally by a hood 2 in the shape of a bell, hood whose cylindrical skirt 3 is hollowed out, in the vicinity of its convex bottom 4, by longitudinal grooves 5.
  • the key 1 comprises a rigid tool or ring 6 suitable for surrounding the grooved portion of the cover 2 and having, radially projecting on its internal cylindrical face, teeth 7 adapted to cooperate with the grooves 5 at ends of angular attachment of the key on the cover.
  • This key further comprises a handle or handle 8 allowing the grip and linked to the ring so as to allow the control of its rotations.
  • connection between the handle and the ring is not rigid: it is pivotally provided around an axis Y which is parallel to the X axis of the ring which is arranged in the immediate vicinity of this ring.
  • This assembly is carried out in such a way that the angular travel of the handle 8 in the direction of the arrow F corresponding to a loosening of the cover (anti-clockwise direction in FIG. 2) is limited by mechanical stop from a position " radial "or substantially” radial "of the handle, position for which the mean line of this handle is contained in the plane defined by the two axes X and Y.
  • This mechanical stop is obtained by bringing a portion of the handle against the ring 6.
  • the handle 8 comprises a rigid metal angle 9.
  • a wing 91 of this angle 9 extends perpendicular to the axis Y, is crossed by this axis and it is mounted on an ear 10 which extends radially the ring 6 towards the outside and which is pierced with a bore 11 Y axis using a rivet 12 passing through this bore.
  • the edge, of the wing 91, disposed near the ring 6, is circularly shaped around the axis Y so as to make possible the angular displacements of the handle in the opposite direction to the arrow F, it is i.e. clockwise in Figure 2.
  • the ear 10 is housed inside the angle 9.
  • This angle is surrounded, in its portion furthest from the ring 6, by a sleeve 14 facilitating its gripping.
  • the ring 6 is extended axially by at least one bent tab 14, the end of which is folded towards the X axis is suitable for covering the cover 2 and for bearing against the bottom 4 of this cover when the key is put in place on the latter.
  • This key has the following major advantage over those previously known: it can be used exclusively for loosening splined or similar filter covers and it is not not possible to use it to tighten such covers, which makes it impossible to excessively screw them during their assembly, to the benefit of their seals and the receiving areas of these seals.
  • the invention is in no way limited to those of its modes of application and embodiments which have been more especially envisaged; on the contrary, it embraces all variants, in particular: - those where the two bent tabs 14 of the key described above would be joined so as to form a single arch suitable for covering the filter covers to be loosened, - And those where the polarizing means would be formed, not by one or more bent tabs, but by a continuous ring extending axially one of the transverse faces of the ring and having a slightly tucked edge.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

This concerns a wrench for removing a ribbed filter cap, comprising a rigid ring (6) capable of surrounding the ribbed portion of the cap and having a non-circular internal contour (7) capable of cooperating with the ribbing for the purpose of angular engagement, a rigid handle (8) being mounted pivotably on the ring (6) about an axis (Y) parallel to that (X) of the ring, in such a way that the angular displacements of this handle are limited by buttressing from its radial position for the direction corresponding to the removal of the cap (arrow F), and, in contrast, remain free in the opposite direction, and obstructing means (14) provided on the ring so that the wrench is able to engage around the cap to be removed only when facing the right way. The pivoting axis (Y) of the handle is arranged in the immediate vicinity of the ring. <IMAGE>

Description

L'invention est relative aux clés servant à des­serrer les filtres montés de manière amovible par vissa­ge sur des supports rigides, filtres comprenant un élé­ment filtrant à l'intérieur d'un capot cannelé en cloche ou analogue.The invention relates to keys for loosening filters removably mounted by screwing on rigid supports, filters comprising a filter element inside a fluted hood in a bell or the like.

Par capot "cannelé" on entend dans le présent texte et dans les revendications qui suivent un capot comportant une jupe cylindrique raccordée à un fond, gé­néralement bombé vers l'extérieur, capot pour lequel la zone, de la jupe, adjacente au fond, est déformée de fa­çon à présenter une couronne d'empreintes longitudinales réparties autour de ladite zone, ces empreintes pouvant être aussi bien des rainures ou encoches creusées vers l'intérieur de la jupe et composant alors des cannelures proprement dites que des méplats délimitant un prisme à section polygonale.By "fluted" cover is meant in the present text and in the claims which follow a cover comprising a cylindrical skirt connected to a bottom, generally curved outwards, cover for which the area of the skirt, adjacent to the bottom, is deformed so as to present a ring of longitudinal indentations distributed around said zone, these indentations being able either to be grooves or notches hollowed out towards the inside of the skirt and then making up grooves proper as well as flats delimiting a prism with a section polygonal.

Pour effectuer les desserrages indiqués, il a déjà été proposé de recourir à une clé comprenant un anneau rigide propre à entourer la portion cannelée du capot et présentant un contour intérieur non circulaire coopérant avec les cannelures aux fins d'accrochage an­gulaire, ledit anneau étant raccordé rigidement à une poignée rigide radiale.To carry out the indicated loosening, it has already been proposed to use a key comprising a rigid ring suitable for surrounding the grooved portion of the cover and having a non-circular internal contour cooperating with the grooves for the purpose of angular attachment, said ring being connected rigidly to a rigid radial handle.

Cette clé permet certes d'exercer sur le filtre des couples de desserrage importants.This key certainly allows exerting significant loosening torques on the filter.

Mais elle se prête également aux serrages.But it also lends itself to tightening.

Or il est demandé aux monteurs des filtres du genre en question de serrer ceux-ci à la main pour évi­ter la création de couples de serrage importants se tra­duisant par un écrasement indésirable du joint d'étan­chéité prévu entre le filtre et son support et par une attaque des surfaces de réception dudit joint.However, installers of filters of the type in question are asked to tighten them by hand to avoid the creation of significant tightening torques, resulting in an undesirable crushing of the seal provided between the filter and its support and by a attack of the receiving surfaces of said seal.

Dans la pratique, on constate que la clé affec­tée aux desserrages est également utilisée pour les ser­rages : l'importance des couples qu'elle permet d'exer­cer sur le filtre est alors un inconvénient.In practice, it can be seen that the key assigned to the loosening is also used for tightening: the importance of the torques which it allows to exert on the filter is then a drawback.

L'invention a pour but, surtout, d'écarter cet inconvénient en excluant toute possibilité d'exercer d'importants couples de serrage à l'aide des clés consi­dérées sans pour autant réduire en rien l'importance des couples de desserrage applicables avec ces clés.The object of the invention is, above all, to overcome this drawback by excluding any possibility of exerting significant tightening torques using the wrenches considered without in any way reducing the importance of the loosening torques applicable with these keys.

En ce point de la description, il convient de rappeler que l'on a déjà proposé, pour serrer et desser­rer les boulons servant à fixer les roues des véhicules sur leurs supports, des clés comprenant un outil annu­laire rigide propre à entourer les têtes des boulons et présentant un contour intérieur non circulaire propre à coopérer avec ces têtes aux fins d'accrochage angulaire, un manche rigide monté pivotant sur l'outil, autour d'un axe lié à cet outil et parallèle à celui de l'outil de façon telle que les déplacements angulaires de ce manche soient limités par arc-boutement à partir de sa position radiale ou d'une position sensiblement telle, pour le sens correspondant aux desserrages et au contraire demeurent libres dans le sens inverse à partir de cette position, et des moyens de détrompage prévus sur l'outil pour que la clé ne puisse chevaucher les têtes des boulons que dans le sens correspondant aux effets ci-dessus.At this point in the description, it should be recalled that it has already been proposed, for tightening and loosening the bolts used to fix the vehicle wheels to their supports, wrenches comprising a rigid annular tool suitable for surrounding the heads of the bolts and having a non-circular internal contour suitable for cooperating with these heads for the purpose of angular attachment, a rigid handle mounted pivoting on the tool, about an axis linked to this tool and parallel to that of the tool in such a way that the angular displacements of this handle are limited by bracing from its radial position or from a substantially such position, for the direction corresponding to the loosening and on the contrary remain free in the opposite direction from this position, and coding means provided on the tool so that the wrench can only overlap the heads of the bolts in the direction corresponding to the above effects.

Dans ces clés, l'axe de pivotement du manche est disposé au milieu de la longueur de ce manche de sorte que le bras de levier disponible pour les serrages est égal à la moitié de celui disponible pour les desser­rages.In these keys, the pivot axis of the handle is arranged in the middle of the length of this handle so that the lever arm available for tightening is equal to half that available for loosening.

En effet, pour l'application envisagée aux bou­lons de fixation des roues de véhicules, il faut pouvoir engendrer à l'aide des clés considérées des couples de serrage qui, s'ils ne doivent pas être excessifs, n'en sont pas moins relativement importants.In fact, for the application envisaged for vehicle wheel fixing bolts, it must be possible to generate, using the keys considered, tightening torques which, if they are not to be excessive, do not are no less relatively important.

Une telle réduction de moitié des couples sus­ceptibles d'être exercés à l'aide de la clé pour le serrage ne serait pas suffisante pour l'application aux capots cannelés de filtres exclusivement envisagée selon la présente invention.Such a halving of the torques that can be exerted using the key for tightening would not be sufficient for the application to the fluted covers of filters exclusively envisaged according to the present invention.

Il faut ici que les couples de serrage suscepti­bles d'être exercés par la clé ne soient pas supérieurs à ceux susceptibles d'être exercés à la main.It is necessary here that the tightening torques which can be exerted by the key are not greater than those which can be exerted by hand.

A cet effet, les clés du genre en question selon l'invention sont essentiellement caractérisées en ce que l'axe de pivotement du manche sur l'outil est disposé à proximité immédiate de cet outil.To this end, the keys of the kind in question according to the invention are essentially characterized in that the pivot axis of the handle on the tool is arranged in the immediate vicinity of this tool.

Dans des modes de réalisation préférés, on a re­cours en outre à l'une et/ou à l'autre des dispositions suivantes:
- le manche comprend une cornière dont une aile s'étend parallèlement à l'axe de pivotement dudit manche et présente une tranche terminale propre à porter contre l'outil, tranche constituant la butée de fin de course angulaire ci-dessus et dont l'autre aile est traversée par l'axe de pivotement et dessinée et montée de façon à pouvoir glisser en rotation contre une oreille soli­daire de l'outil,
- dans une clé selon l'alinéa précédent, le manche est monté sur l'oreille à l'aide d'un rivet,
- les moyens de détrompage sont constitués par au moins une patte coudée raccordée à l'outil, patte propre à coiffer chaque filtre et à reposer sur le fond de ce­lui-ci lorsque l'outil est mis en place autour de la portion cannelée du capot de ce filtre,
- les moyens de détrompage selon l'alinéa précédent sont constitués par deux pattes coudées symétriques l'une de l'autre par rapport au plan comprenant l'axe de l'outil et celui de pivotement du manche.In preferred embodiments, use is also made of one and / or the other of the following arrangements:
- The handle includes an angle iron, a wing of which extends parallel to the pivot axis of said handle and has a clean end section to be worn against the tool, section constituting the above angular end-of-travel stop and the another wing is crossed by the pivot axis and drawn and mounted so as to be able to slide in rotation against an ear secured to the tool,
- in a key according to the previous paragraph, the handle is mounted on the ear using a rivet,
- the coding means consist of at least one bent tab connected to the tool, a tab suitable for covering each filter and resting on the bottom of the latter when the tool is placed around the grooved portion of the cover of this filter,
- The polarizing means according to the preceding paragraph consist of two bent legs symmetrical to each other with respect to the plane comprising the axis of the tool and that of the handle.

L'invention comprend, mises à part ces disposi­tions principales, certaines autres dispositions qui s'utilisent de préférence en même temps et dont il sera plus explicitement question ci-après.The invention includes, apart from these main provisions, certain other provisions which are preferably used at the same time and which will be more explicitly discussed below.

Dans ce qui suit, l'on va décrire un mode de réalisation de l'invention en se référant au dessin ci-­annexé d'une manière bien entendu non limitative.In what follows, an embodiment of the invention will be described with reference to the attached drawing in a manner which is of course not limiting.

Les figures 1 et 2, de ce dessin, montrent res­pectivement en vue latérale, portions coupées axialement selon I-I, figure 2 et en vue en bout selon la flèche II de la figure 1, une clé de desserrage établi selon l'in­vention.Figures 1 and 2, of this drawing, show respectively in side view, portions cut axially along I-I, Figure 2 and in end view according to arrow II of Figure 1, a release key established according to the invention.

La clé considérée 1 est destinée à desserrer des filtres, tels que des filtres à huile pour moteurs de véhicules, qui ont été préalablement montés sur leurs supports par serrage aux fins de vissage.The key considered 1 is intended to loosen filters, such as oil filters for vehicle engines, which have been previously mounted on their supports by tightening for the purpose of screwing.

Comme visible en traits mixtes sur la figure 1, le filtre est délimité extérieurement par un capot 2 en forme de cloche, capot dont la jupe cylindrique 3 est creusée, au voisinage de son fond bombé 4, par des can­nelures longitudinales 5.As visible in dashed lines in FIG. 1, the filter is delimited externally by a hood 2 in the shape of a bell, hood whose cylindrical skirt 3 is hollowed out, in the vicinity of its convex bottom 4, by longitudinal grooves 5.

D'une façon connue en soi, la clé 1 comprend un outil ou anneau rigide 6 propre à entourer la portion cannelée du capot 2 et présentant, radialement en sail­lie sur sa face cylindrique interne, des dents 7 propres à coopérer avec les cannelures 5 aux fins d'accrochage angulaire de la clé sur le capot.In a manner known per se, the key 1 comprises a rigid tool or ring 6 suitable for surrounding the grooved portion of the cover 2 and having, radially projecting on its internal cylindrical face, teeth 7 adapted to cooperate with the grooves 5 at ends of angular attachment of the key on the cover.

Cette clé comprend en outre une poignée ou manche 8 permettant la prise en main et liée à l'anneau de façon à permettre la commande de ses rotations.This key further comprises a handle or handle 8 allowing the grip and linked to the ring so as to allow the control of its rotations.

Mais, contrairement à ce qui est le cas dans les réalisations connues jusqu'à ce jour, la liaison entre la poignée et l'anneau n'est pas rigide : elle est assu­rée de façon pivotante autour d'un axe Y qui est paral­lèle à l'axe X de l'anneau qui est disposé à proximité immédiate de cet anneau.But, unlike what is the case in the embodiments known to date, the connection between the handle and the ring is not rigid: it is pivotally provided around an axis Y which is parallel to the X axis of the ring which is arranged in the immediate vicinity of this ring.

Ce montage est effectué de façon telle que la course angulaire de la poignée 8 dans le sens de la flè­che F correspondant à un desserrage du capot (sens anti-­horaire sur la figure 2) soit limitée par butée mécani­que à partir d'une position "radiale" ou sensiblement "radiale" de la poignée, position pour laquelle la ligne moyenne de cette poignée est contenue dans le plan défi­ni par les deux axes X et Y.This assembly is carried out in such a way that the angular travel of the handle 8 in the direction of the arrow F corresponding to a loosening of the cover (anti-clockwise direction in FIG. 2) is limited by mechanical stop from a position " radial "or substantially" radial "of the handle, position for which the mean line of this handle is contained in the plane defined by the two axes X and Y.

Cette butée mécanique est obtenue en faisant porter contre l'anneau 6 une portion de la poignée.This mechanical stop is obtained by bringing a portion of the handle against the ring 6.

Dans le mode de réalisation illustré, la poignée 8 comprend une cornière métallique rigide 9.In the illustrated embodiment, the handle 8 comprises a rigid metal angle 9.

Une aile 9₁ de cette cornière 9 s'étend perpen­diculairement à l'axe Y, est traversée par cet axe et elle est montée sur une oreille 10 qui prolonge radiale­ment l'anneau 6 vers l'extérieur et qui est percée d'un alésage 11 d'axe Y à l'aide d'un rivet 12 traversant cet alésage.A wing 9₁ of this angle 9 extends perpendicular to the axis Y, is crossed by this axis and it is mounted on an ear 10 which extends radially the ring 6 towards the outside and which is pierced with a bore 11 Y axis using a rivet 12 passing through this bore.

La tranche, de l'aile 9₁ , disposée à proximité de l'anneau 6, est conformée circulairement autour de l'axe Y de façon à rendre possibles les déplacements angulaires de la poignée dans le sens contraire à la flèche F, c'est à-dire dans le sens horaire sur la figu­re 2.The edge, of the wing 9₁, disposed near the ring 6, is circularly shaped around the axis Y so as to make possible the angular displacements of the handle in the opposite direction to the arrow F, it is i.e. clockwise in Figure 2.

L'autre aile 9₂ de la cornière 9, perpendiculai­re à l'aile 9₁, s'étend parallèlement à l'axe Y et c'est sa tranche terminale 13 qui constitue la portée solidai­re de la poignée 8 propre à venir buter contre l'anneau dans le sens de la flèche F.The other wing 9₂ of the angle 9, perpendicular to the wing 9₁, extends parallel to the axis Y and it is its end portion 13 which constitutes the integral surface of the handle 8 adapted to abut against the ring in the direction of arrow F.

Pour rendre possible cette butée, l'oreille 10 est logée à l'intérieur de la cornière 9.To make this stop possible, the ear 10 is housed inside the angle 9.

Cette cornière est entourée, dans sa portion la plus éloignée de l'anneau 6, par un manchon 14 facili­tant sa préhension.This angle is surrounded, in its portion furthest from the ring 6, by a sleeve 14 facilitating its gripping.

L'anneau 6 est prolongé axialement par au moins une patte coudée 14 dont l'extrémité, rabattue vers l'axe X, est propre à venir coiffer le capot 2 et à por­ter contre le fond 4 de ce capot lors de la mise en pla­ce de la clé sur ce dernier.The ring 6 is extended axially by at least one bent tab 14, the end of which is folded towards the X axis is suitable for covering the cover 2 and for bearing against the bottom 4 of this cover when the key is put in place on the latter.

La présence de cette patte 14 rend impossible un montage à l'envers de la clé sur le capot.The presence of this lug 14 makes it impossible to mount the key upside down on the cover.

Le fonctionnement de cette clé est le suivant.The operation of this key is as follows.

Lorsqu'elle est montée sur le capot dans le seul sens possible pour ce montage, savoir celui illustré sur le dessin, il est possible d'exercer des couples très importants sur l'anneau 6 et donc sur le capot 2 du fil­tre, à l'aide de la poignée 8,14 dans le sens du desser­rage du capot (flèche F).When it is mounted on the cover in the only possible direction for this assembly, namely that illustrated in the drawing, it is possible to exert very large torques on the ring 6 and therefore on the cover 2 of the filter, using the handle 8,14 in the direction of loosening the cover (arrow F).

En effet les efforts exercés en correspondance sur la poignée se traduisent par butée de la tranche 13 contre l'anneau 6, ce qui assure un excellent transfert des couples audit anneau, et ce sans aucun risque de pincement des doigts de l'usager entre la poignée et l'anneau.Indeed, the forces exerted in correspondence on the handle translate into abutment of the edge 13 against the ring 6, which ensures excellent transfer of the torques to said ring, and this without any risk of pinching the fingers of the user between the handle and ring.

Au contraire les couples exercés sur la poignée 8,14 dans le sens du serrage ou vissage du capot, c'est-­à-dire dans le sens contraire à la flèche F, se tradui­sent par de simples rotations de cette poignée autour de l'axe Y, éventuellement jusqu'à pincement des doigts de l'usager entre la poignée et l'anneau : il n'est donc pas possible d'exercer sur le capot 2 avec ladite clé des coupes de serrage importants et en particulier supé­rieurs à ceux qu'il est possible d'appliquer à la main sur ce capot.On the contrary, the torques exerted on the handle 8.14 in the direction of tightening or screwing of the cover, that is to say in the direction opposite to the arrow F, result in simple rotations of this handle around the Y axis, possibly until pinching of the user's fingers between the handle and the ring: it is therefore not possible to exert on the cover 2 with said key large tightening cuts and in particular greater than those that it is possible to apply by hand to this cover.

En suite de quoi, et quel que soit le mode de réalisation adopté, on dispose finalement d'une clé dont la constitution et le fonctionnement résultent suffisam­ment de ce qui précède.Following which, and whatever the embodiment adopted, there is finally a key whose constitution and operation result sufficiently from the above.

Cette clé présente par rapport à celles anté­rieurement connues l'important avantage suivant : elle peut être utilisée exclusivement pour les desserrages des capots cannelés ou analogues de filtre et il n'est pas possible de l'utiliser pour serrer de tels capots, ce qui rend impossibles les vissages excessifs de ces derniers lors de leur montage, au bénéfice de leurs joints d'étanchéité et des plages de réception de ces joints.This key has the following major advantage over those previously known: it can be used exclusively for loosening splined or similar filter covers and it is not not possible to use it to tighten such covers, which makes it impossible to excessively screw them during their assembly, to the benefit of their seals and the receiving areas of these seals.

Comme il va de soi, et comme il résulte d'ail­leurs déjà de ce qui précède, l'invention ne se limite nullement à ceux de ses modes d'application et de réali­sation qui ont été plus spécialement envisagés ; elle en embrasse, au contraire, toutes les variantes, notam­ment :
- celles où les deux pattes coudées 14 de la clé ci-­dessus décrites seraient réunies de façon à former un arceau unique propre à coiffer les capots de filtres à desserrer,
- et celles où les moyens de détrompage seraient formés, non pas par une ou plusieurs pattes coudées, mais par une couronne continue prolongeant axialement l'une des faces transversales de l'anneau et présentant un bord légèrement rentrant.As is obvious, and as already follows from the foregoing, the invention is in no way limited to those of its modes of application and embodiments which have been more especially envisaged; on the contrary, it embraces all variants, in particular:
- those where the two bent tabs 14 of the key described above would be joined so as to form a single arch suitable for covering the filter covers to be loosened,
- And those where the polarizing means would be formed, not by one or more bent tabs, but by a continuous ring extending axially one of the transverse faces of the ring and having a slightly tucked edge.

Claims (5)

1. Clé de desserrage pour capot cannelé (2) de filtre, comprenant, d'une façon connue en soi pour des clés de desserrage de boulons de fixation de roues de véhicules, un outil annulaire rigide (6) propre à entou­rer la tête de la pièce à desserrer et présentant un contour intérieur non circulaire (7) propre à coopérer avec cette tête aux fins d'accrochage angulaire, un man­che rigide (8) monté pivotant sur l'outil autour d'un axe (Y) lié à cet outil et parallèle à celui (X) de l'outil de façon telle que les déplacements angulaires du manche soient limités par arc-boutement à partir de sa position radiale ou d'une position sensiblement tel­le, pour le sens (flèche F) correspondant aux desserra­ges de la pièce considérée, et au contraire demeurent libres dans le sens inverse à partir de cette position, et des moyens de détrompage (14) prévus sur l'outil pour que la clé ne puisse chevaucher la pièce à desserrer que dans le sens correspondant aux effets ci-dessus, carac­térisée en ce que l'axe de pivotement (Y) du manche sur l'outil est disposé à proximité immédiate de cet outil.1. Loosening key for fluted filter cover (2), comprising, in a manner known per se for loosening keys for vehicle wheel fixing bolts, a rigid annular tool (6) suitable for surrounding the head the part to be loosened and having a non-circular interior contour (7) suitable for cooperating with this head for the purpose of angular attachment, a rigid handle (8) pivotally mounted on the tool around an axis (Y) linked to this tool and parallel to that (X) of the tool so that the angular displacements of the handle are limited by bracing from its radial position or from a substantially such position, for the direction (arrow F) corresponding to loosening of the part considered, and on the contrary remain free in the opposite direction from this position, and keying means (14) provided on the tool so that the key can overlap the part to be loosened only in the corresponding direction to the above effects, characterized in that the he pivot axis (Y) of the handle on the tool is arranged in the immediate vicinity of this tool. 2. Clé de desserrage selon la revendication 1, caractérisée en ce que le manche (8) comprend une cor­nière (9) dont une aile (9₁ ) s'étend parallèlement à l'axe de pivotement (Y) dudit manche et présente une tranche terminale (13) propre à porter contre l'outil (6), tranche constituant la butée de fin de course angu­laire ci-dessus et dont l'autre aile (9₂) est traversée par l'axe de pivotement (Y) et dessinée et montée de façon à pouvoir glisser en rotation contre une oreille (10) solidaire de l'outil.2. Release key according to claim 1, characterized in that the handle (8) comprises an angle (9) of which a wing (9₁) extends parallel to the pivot axis (Y) of said handle and has a slice terminal (13) suitable for bearing against the tool (6), section constituting the abutment for the angular end of travel above and the other wing (9₂) of which is crossed by the pivot axis (Y) and drawn and mounted so that it can slide in rotation against an ear (10) secured to the tool. 3. Clé de desserrage selon la revendication 2, caractérisée en ce que le manche (8) est monté sur l'oreille (10) à l'aide d'un rivet (12).3. Release key according to claim 2, characterized in that the handle (8) is mounted on the ear (10) using a rivet (12). 4. Clé de desserrage selon l'une quelconque des précédentes revendications, caractérisée en ce que les moyens de détrompage sont constitués par au moins une patte coudée (14) raccordée à l'outil (6), patte propre à coiffer le capot (2) et à reposer sur le fond (4) de celui-ci lorsque l'outil est mis en place autour de la portion cannelée (5) de ce capot.4. Release key according to any one of previous claims, characterized in that the polarizing means consist of at least one bent tab (14) connected to the tool (6), a tab suitable for covering the cover (2) and resting on the bottom (4) of when the tool is placed around the grooved portion (5) of this cover. 5. Clé de desserrage selon la revendication 4, caractérisée en ce que les moyens de détrompage sont constitués par deux pattes coudées (14) symétriques l'une de l'autre par rapport au plan comprenant l'axe (X) de l'outil (6) et celui de pivotement (Y) du manche (8).5. Release key according to claim 4, characterized in that the keying means consist of two bent tabs (14) symmetrical to each other relative to the plane comprising the axis (X) of the tool (6) and that of pivoting (Y) of the handle (8).
EP19890401300 1988-05-16 1989-05-10 Wrenches for removing threaded filters or the like Expired - Lifetime EP0343039B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806538A FR2631276B1 (en) 1988-05-16 1988-05-16 IMPROVEMENTS IN LOCKING KEYS FOR SCREWABLE FILTERS OR THE LIKE
FR8806538 1988-05-16

Publications (2)

Publication Number Publication Date
EP0343039A1 true EP0343039A1 (en) 1989-11-23
EP0343039B1 EP0343039B1 (en) 1992-07-01

Family

ID=9366337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890401300 Expired - Lifetime EP0343039B1 (en) 1988-05-16 1989-05-10 Wrenches for removing threaded filters or the like

Country Status (4)

Country Link
EP (1) EP0343039B1 (en)
DE (1) DE68901952T2 (en)
ES (1) ES2032664T3 (en)
FR (1) FR2631276B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705048A1 (en) * 1993-05-12 1994-11-18 Amblard Albert Device for connecting together the handle and the active member of a tool for tightening and loosening
FR2723872A1 (en) * 1994-08-31 1996-03-01 Seiculic V Dragan Vehicle oil filter removal tool
FR2731262A1 (en) * 1995-03-03 1996-09-06 Air Liquide Key to operate valve on pressurised gas bottle
US6423222B1 (en) * 2000-12-26 2002-07-23 Dana Corporation Ergonomically configured can for filter cartridges and wrench for use therewith
CN102560924A (en) * 2010-10-14 2012-07-11 兄弟工业株式会社 Embroidery frame

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016003313B4 (en) 2015-03-18 2017-05-24 Günter Kunze Oil filter wrench

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US3066559A (en) * 1961-03-29 1962-12-04 Loyd F Harvel Tool for replacing oil filters
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GB1458089A (en) * 1973-11-30 1976-12-08 Yamamoto Byora Co Ltd Fastener driver
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US4733583A (en) * 1986-01-22 1988-03-29 Lewis Robert W Lug wrench

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US2625066A (en) * 1945-12-10 1953-01-13 William M Petty Closure remover with pivoted gripping jaws
US3066559A (en) * 1961-03-29 1962-12-04 Loyd F Harvel Tool for replacing oil filters
US3119290A (en) * 1961-07-10 1964-01-28 Roger G Ivie Work-gripping wrench socket
US3465622A (en) * 1967-08-07 1969-09-09 Linnaeus Winans Motor oil filter wrench assembly
US3885477A (en) * 1973-10-25 1975-05-27 Alvin L Shook Wrench for removing automobile radiator caps
GB1458089A (en) * 1973-11-30 1976-12-08 Yamamoto Byora Co Ltd Fastener driver
US3853026A (en) * 1974-02-04 1974-12-10 Burden A Oil filter removing tool
GB1496524A (en) * 1975-06-16 1977-12-30 British Leyland Uk Ltd Wrench
DE2853261A1 (en) * 1978-12-09 1980-06-19 Daimler Benz Ag Wheel brace for motor car wheels - has hinged extension piece to allow large torque to be exerted on wheel nuts
US4643053A (en) * 1981-09-09 1987-02-17 Rhodes Charles W Oil filter removal tool
US4733583A (en) * 1986-01-22 1988-03-29 Lewis Robert W Lug wrench

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MACHINE DESIGN, vol. 50, no. 17, juillet 1978, page 42, Cleveland, US; "Jointed tire iron overpowers frozen wheel nuts" *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705048A1 (en) * 1993-05-12 1994-11-18 Amblard Albert Device for connecting together the handle and the active member of a tool for tightening and loosening
FR2723872A1 (en) * 1994-08-31 1996-03-01 Seiculic V Dragan Vehicle oil filter removal tool
FR2731262A1 (en) * 1995-03-03 1996-09-06 Air Liquide Key to operate valve on pressurised gas bottle
US6423222B1 (en) * 2000-12-26 2002-07-23 Dana Corporation Ergonomically configured can for filter cartridges and wrench for use therewith
CN102560924A (en) * 2010-10-14 2012-07-11 兄弟工业株式会社 Embroidery frame

Also Published As

Publication number Publication date
ES2032664T3 (en) 1993-02-16
DE68901952T2 (en) 1992-12-10
EP0343039B1 (en) 1992-07-01
DE68901952D1 (en) 1992-08-06
FR2631276B1 (en) 1993-08-06
FR2631276A1 (en) 1989-11-17

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