EP0343039B1 - Wrenches for removing threaded filters or the like - Google Patents

Wrenches for removing threaded filters or the like Download PDF

Info

Publication number
EP0343039B1
EP0343039B1 EP19890401300 EP89401300A EP0343039B1 EP 0343039 B1 EP0343039 B1 EP 0343039B1 EP 19890401300 EP19890401300 EP 19890401300 EP 89401300 A EP89401300 A EP 89401300A EP 0343039 B1 EP0343039 B1 EP 0343039B1
Authority
EP
European Patent Office
Prior art keywords
tool
handle
unscrewing
axis
cover
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
EP19890401300
Other languages
German (de)
French (fr)
Other versions
EP0343039A1 (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
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 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

Links

Images

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 used to loosen 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.
  • filter assemblers 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.
  • 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 pivotally mounted 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, as in the key described in GB-A-1496524.
  • 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 disposed in the immediate vicinity of this tool.
  • 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 screwing purposes.
  • the filter is delimited on the outside by a hood 2 in the shape of a bell, hood whose cylindrical skirt 3 is hollowed out, in the vicinity of its curved 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 perpendicularly 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 whose end, 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 important 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.

Landscapes

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

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 used to loosen 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, filter assemblers 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 of the description, it should be recalled that it has already been proposed, for tightening and loosening the bolts used to fix the vehicle wheels on 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 pivotally mounted 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, comme dans la clé décrite dans le document GB-A-1496524.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, as in the key described in GB-A-1496524.

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 disposed 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 comprises an angle iron, one wing of which extends parallel to the pivot axis of said handle and has an end section suitable for bearing against the tool, section constituting the above angular end-of-travel stop and the other of which 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 preceding paragraph, the handle is mounted on the ear using a rivet,
  • the polarizing 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 hood of this filter,
  • the keying means according to the preceding paragraph consist of two bent legs symmetrical to one another 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 screwing purposes.

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 can be seen in phantom in FIG. 1, the filter is delimited on the outside by a hood 2 in the shape of a bell, hood whose cylindrical skirt 3 is hollowed out, in the vicinity of its curved 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 perpendicularly 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 edge 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 whose end, 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, the constitution and operation of which 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 important 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 together so as to form a single arch suitable for covering the filter caps 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. Unscrewing wrench for a fluted filter cover (2), comprising, in a manner known per se with regard to wrenches for unscrewing vehicle wheel fixing nuts, a rigid annular tool (6) suitable for surrounding the head of the item to be unscrewed and having a non-circular internal contour (7) suitable for interacting with this head for the purpose of angular engagement, a rigid handle (8) mounted so as to pivot on the tool about an axis (Y) connected to this tool and parallel to the axis (X) of the tool in such a way that the angular movements of the handle are limited by buttressing as from its radial position or a position substantially such, for the direction (arrow F) corresponding to the unscrewing of the item concerned, and on the other hand remaining free in the opposite direction as from this position, and location means (14) provided on the tool so that the wrench can fit over the item to be unscrewed only in the way corresponding to the above effects, characterised in that the axis (Y) by which the handle pivots on the tool is located in the immediate proximity of this tool.
2. Unscrewing wrench according to claim 1, characterised in that the handle (8) comprises an angle piece (9), one flange of which (9₁) lies parallel to the pivot axis (Y) of the said handle and has an end section (13) designed to bear against the tool (6), said section constituting the above angular end of travel stop, and the other flange (9₂) of which has the pivot axis (Y) passing through it and is designed and fitted so as to be able to slide in rotation against a lug (10) secured to the tool.
3. Unscrewing wrench according to claim 2, characterised in that the handle (8) is mounted on the lug (10) by means of a rivet (12).
4. Unscrewing wrench according to any one of the preceding claims, characterised in that the location means are formed by at least one bent lug (14) connected to the tool (6), said lug being designed to wrap around the cover (2) and rest on the end (4) of the latter when the tool is placed around the fluted portion (5) of this cover.
5. Unscrewing key according to claim 4, characterised in that the location means are formed by two bent lugs (14) symmetrical to each other in relation to the plane comprising the axis (X) of the tool (6) and the pivot axis (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 EP0343039A1 (en) 1989-11-23
EP0343039B1 true 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)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705048B1 (en) * 1993-05-12 1995-06-30 Amblard Albert CONNECTION DEVICE BETWEEN THE HANDLE AND THE ACTIVE MEMBER OF A TIGHTENING AND LOOSING TOOL.
FR2723872B1 (en) * 1994-08-31 1998-01-23 Seiculic V Dragan PLIERS FOR SCREWING AND TIGHTENING THE OIL FILTER OF VEHICLE ENGINES
FR2731262B1 (en) * 1995-03-03 1997-05-23 Air Liquide TAP OPERATION KEY
US6423222B1 (en) * 2000-12-26 2002-07-23 Dana Corporation Ergonomically configured can for filter cartridges and wrench for use therewith
JP2012082559A (en) * 2010-10-14 2012-04-26 Brother Ind Ltd Embroidery frame
DE102016003313B4 (en) 2015-03-18 2017-05-24 Günter Kunze Oil filter wrench

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5228233Y2 (en) * 1973-11-30 1977-06-27
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
DE2853261C2 (en) * 1978-12-09 1986-11-06 Daimler-Benz Ag, 7000 Stuttgart Wheel wrenches for vehicle wheels
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

Also Published As

Publication number Publication date
ES2032664T3 (en) 1993-02-16
DE68901952T2 (en) 1992-12-10
FR2631276B1 (en) 1993-08-06
EP0343039A1 (en) 1989-11-23
FR2631276A1 (en) 1989-11-17
DE68901952D1 (en) 1992-08-06

Similar Documents

Publication Publication Date Title
EP2689110B1 (en) Shut-off device with automatically activatable locking
FR2847180A1 (en) TOOL HOLDER CHUCK WITH LOCKING SYSTEM
EP0343039B1 (en) Wrenches for removing threaded filters or the like
WO1997000758A1 (en) Ratchet spanner for turning a hexagon-head part, particularly a screw or nut
EP0325069B1 (en) Locknut
EP0272967A1 (en) Clutch release bearing with a bi-stable spring washer, especially for automotive vehicles
FR2501615A1 (en) Retainer for bicycle pedal crank - has cap on drive pedal crank engaging sides of retaining screw on axle
EP1649980A1 (en) Torque limiting tool
FR2614921A1 (en) Device for safety against tearing out or pushing in a part which is fitted around another part, and assembly forming a safety lock equipped with this device
EP1216120B1 (en) Rotational driving tool for screwing member
EP0207823A1 (en) Pliers for opening pressurized jars
FR2713126A1 (en) Pliers for elastic rings
FR2754227A1 (en) Automobile windscreen wiper system
EP0207833B1 (en) Threaded stud comprising a torque-limiting means
EP0307327A1 (en) Screwed connecting device between two elements affording adjustment of the distance between them
FR2557917A1 (en) DRILL BIT WITH PULLETS RETAINED IN PLACE PERMANENTLY BY JUNCTS.
FR2578506A1 (en) LEVER OF MANEUVER FOR A BICYCLE
EP1456573A1 (en) Device for sealed coupling of two rigid tubes of same external diameter
FR2752764A1 (en) Key for connecting domestic gas bottle to gas pipe
FR2812607A1 (en) STEERING COLUMN FOR A MOTOR VEHICLE STEERING SYSTEM
FR2745234A1 (en) Power transmission drive coupling for automobile
FR2757814A1 (en) Securing device for windscreen wiper drive head to drive shaft
FR2611567A1 (en) Tool handle, particularly for a screwdriver or the like
BE844517A (en) TOOL IN THE SHAPE OF PLIERS FOR LOOSING THE LOCKING CAP OF A CONTAINER
FR2705048A1 (en) Device for connecting together the handle and the active member of a tool for tightening and loosening

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT NL SE

17P Request for examination filed

Effective date: 19900112

17Q First examination report despatched

Effective date: 19910312

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920701

Ref country code: NL

Effective date: 19920701

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 68901952

Country of ref document: DE

Date of ref document: 19920806

ITF It: translation for a ep patent filed

Owner name: GUZZI E RAVIZZA S.R.L.

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: FILTRAUTO

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960425

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960503

Year of fee payment: 8

Ref country code: FR

Payment date: 19960503

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19960508

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970510

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19970512

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970510

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980203

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050510