EP2723533A1 - Improved tool for controlling a drain plug of a technical motor - Google Patents

Improved tool for controlling a drain plug of a technical motor

Info

Publication number
EP2723533A1
EP2723533A1 EP12735486.8A EP12735486A EP2723533A1 EP 2723533 A1 EP2723533 A1 EP 2723533A1 EP 12735486 A EP12735486 A EP 12735486A EP 2723533 A1 EP2723533 A1 EP 2723533A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
tip
tool
tool according
working end
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
EP12735486.8A
Other languages
German (de)
French (fr)
Other versions
EP2723533B1 (en
Inventor
Jean-Christophe Herisse
Hadi Idir
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.)
Stanley Works Europe GmbH
Original Assignee
Stanley Works Europe GmbH
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 Stanley Works Europe GmbH filed Critical Stanley Works Europe GmbH
Publication of EP2723533A1 publication Critical patent/EP2723533A1/en
Application granted granted Critical
Publication of EP2723533B1 publication Critical patent/EP2723533B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs

Definitions

  • the present invention relates to a tool for operating a drain plug of a heat engine, the tool being of the type comprising an elongate body having a free end forming a handle; a tip connected to the body and provided with a working end, in particular a male square, the working end being adapted to cooperate by direct or indirect coupling with said plug; a receptacle for receiving the used oil from the engine, said receptacle being disposed between the working end and the handle; the body and the working end being arranged relative to one another according to at least one unscrewing position in which the tool is adapted so that the user unscrews the cap when the latter has been previously unlocked .
  • the key comprises a tube-shaped body connected to an articulated square adapted to cooperate with the drain plug.
  • a receptacle is fitted to the tube and receives the used oil jet from the engine.
  • the tube is pierced laterally with an orifice for introducing a complementary arm shaped steel rod to unlock the plug.
  • the portion of the tube under the receptacle serves as a handle to allow the user to unscrew the cap.
  • the key with receptacle equipped with the arm allows the unblocking and unscrewing of the cap without the risk of splashing used oil on the hand.
  • the implementation of this key requires a complementary arm.
  • Patent FR-A1 -2677633 discloses a discharge device for thermal engines comprising a funnel on which is fitted a neck connecting a discharge tube of the used oil. This assembly is completed with a disassembly tool of the drain plug having a metal rod fixed to the neck and surmounted by a male drive square for receiving a socket among a plurality of sockets allowing access to plugs of different kinds.
  • the discharge tube comprises two diametrically opposed holes for receiving a disassembly pin acting as a lever for unscrewing the plug.
  • a gimbal can be interposed between the bush and the square.
  • the device is bulky and its implementation requires a disassembly pin.
  • FR-A1 -2584967 discloses a hand tool for removing a drain plug of an oil sump.
  • a funnel-shaped sheath has a skirt pierced with a central orifice.
  • a handle extends perpendicularly or slightly oblique to the axis of the funnel and fits into the skirt.
  • a key in the form of a cylindrical bar passes through the interlocking.
  • the bar carries an interchangeable polygonal head adapted to engage the cap to be unscrewed. In contrast, it has a knurled head for turning the key manually.
  • the handle is secured to the key to unlock the cap and then disengaged to unscrew the cap.
  • the handle is hollow and the interlock allows to evacuate the used oil from the funnel to the end of the handle through which the oil flows to a collecting container.
  • the tooling is, as before, bulky and its implementation is complicated.
  • the invention aims to improve the design of the operating tool of a drain plug by simplifying the implementation of the release and unscrewing.
  • the invention relates to a tool of the aforementioned type, a hinge provided with an indexing device connects the body and the endpiece, the indexing device reversibly blocking the joint in, at least , one of a first unlocking position in which the body of the tool acts as a lever arm to allow the user to unlock the cap and said unscrewing position.
  • the invention ensures an efficient release and unscrewing without the risk of losing a complementary accessory, the tool being simple to perform.
  • the body and the nozzle extend respectively along a first longitudinal axis and a second longitudinal axis and, in the unlocking position, the first and second axes are arranged substantially perpendicularly, and, in the unscrewing position, the first and second axes are arranged substantially parallel, in particular substantially aligned;
  • the indexing device reversibly blocks the articulation in a second unlocking position of the stopper in which the body of the tool acts as a lever arm to allow the user to unlock the stopper, the second position being oriented substantially opposite to the first unlocking position;
  • the body comprises a clevis receiving a pivot axis and covering an attachment part of the pivotally movable endpiece relative to said body, the clevis pin receiving a key cooperating with a guide groove made in the clevis and a a plurality of indexing grooves made in the attachment portion;
  • the indexing device comprises an activation button for deliberately releasing the blockage, and in that a first biasing means tends to position the indexing device in the rest position corresponding to the locking of the articulation;
  • the tip comprises an elongate shaft, such that in at least the first unlocking position, the body is disposed at a sufficient distance substantially parallel to the motor;
  • the purpose of the invention is to avoid the inadvertent fall of the tool of the aforementioned type.
  • the receptacle comprises a generally circular rim provided with at least one flat, preferably three flats arranged at regular intervals angularly.
  • the tool is kept stable on an even inclined laying plan.
  • the receptacle is disposed on the end of the endpiece relative to said articulation; the receptacle is connected to the tip removably;
  • a locking device in particular a bayonet device, immobilizes the receptacle relative to the tip;
  • the invention aims to improve the versatility of the emptying tool. This problem is solved by the fact that, in a maneuvering tool of a drain plug of the type indicated above, the working end is coupled indirectly to the plug via a bushing and in that the nozzle receives externally an ejection sleeve of the sleeve connected to the working end of the tip.
  • the tool allows a quick change of the sockets.
  • the ejection sleeve comprises a sleeve surrounding the tip and slidably mounted relative thereto, said sleeve being movable between a rest position in which it is flush with the sleeve or in which it is axially recessed relative to said socket , and an ejection position in which the axial displacement of said sleeve relative to the endpiece towards the working end of the latter leads the sleeve into contact with the sleeve and uncouples it from said working end;
  • a second biasing means acts on the sleeve and tends to arrange the sleeve in its rest position.
  • Figures 1 and 2 are respectively perspective views of the implementation of a tool according to the invention according to the respective positions of unlocking and unscrewing,
  • FIGS. 3 and 4 are respectively a front view and an exploded front view of the tool according to the invention.
  • FIGS. 5 and 6 are views in partial longitudinal section according to the respective unlocking and unscrewing positions of FIGS. 1 and 2 showing the operation of the device for indexing the articulation of the tool according to the invention
  • FIG. 7 is a partial longitudinal sectional view oriented at 90 ° with respect to the views of FIGS. 5 and 6 showing the articulation of the tool and the operation of the indexing device according to the invention, as well as the operation of the device for ejection of a socket coupled to the tool according to the invention,
  • FIG. 8 is a view from above of the tool according to arrow VIII of FIG. 3
  • FIG. 9 is a partial sectional view along the lines IX-IX of FIG. 8.
  • the terms "lower”, “upper” and , “Right” and “left” used in the description which follows, are understood according to the orientation of Figures 1 to 7.
  • Figures 1 and 2 show a base of a thermal engine vehicle mounted on a bridge. Draining the engine block of the vehicle is effected by discharging the used oil through a hole usually closed by a threaded drain plug 1 located in the lowest part of the housing 3 of the engine block.
  • the plug 1 comprises a housing 5 ( Figures 5 and 6) for its maneuver.
  • FIG. 1 represents a maneuvering tool 10 according to the invention in the unlocking position of the plug 1. It comprises an elongated body 12 extending along a longitudinal axis X-X and an elongated end 14 extending along a longitudinal axis 7.-7.
  • a hinge 16 preferably pivoted, connects the body 12 and the tip 14.
  • the free end of the body 12 comprises an actuating handle 18 for the grip by the user.
  • the end piece 14 is provided with a working end 20 (FIGS. 3 and 4) provided with a holding element 21 (FIG. 5), in particular a male training square equipped with a retention ball loaded by a compression spring, adapted to cooperate by firm coupling with a sleeve 22.
  • the bushing comprises a driving part or base 22a (FIG. 5) which engages in complementary form with the working end 20 and a driven or protruding part 24 (FIGS. 3 to 6) which engages in complementary form in the housing 5 of the plug 1.
  • the projection 24 comprises a magnetic device 25 ( Figure 7) adapted to retain the plug 1, itself metal.
  • the working end 20 is coupled indirectly to the plug 1.
  • the working end 20 is coupled directly with plug 1 by complement of form.
  • this variant reduces the versatility of the tool.
  • a concave receptacle 28, intended to receive the used oil, is disposed between the working end 20 and the handle 18, on the side of the endpiece 14 with respect to the articulation 16.
  • the receptacle is connected to the endpiece 14. Preferably, it can be reversibly secured to the sheath 26.
  • the Z-Z axis of the endpiece 14 is disposed substantially perpendicular to the X-X axis of the body 12,
  • Figures 2 and 3 show the operating tool 10 in the unscrewing position of the plug 1.
  • the Z-Z axis of the tip 14 is disposed substantially parallel to the X-X axis of the body 12, and in particular the X-X and Z-Z axes are substantially aligned.
  • a yoke 30 extends the body 12 away from the handle 18.
  • the yoke comprises a first 30a and a second leg 30b disposed respectively to the right and left ( Figures 5 and 6).
  • a bore 31 passes through the yoke 30 and extends along an axis Y-Y perpendicular to the axes X-X and Z-Z.
  • a first bore 32 defines the bore 31 on the outer face of the right leg 30a of the yoke ( Figure 5).
  • a second bore 33 of greater diameter than that of the bore 32, defines the bore 31 on the outer face of the left leg 30b of the yoke (FIG. 5) and extends coaxially with respect to the bore 31.
  • the tip 14 has axially, from the square 20, a cylindrical central shaft 34 of circular cross section delimited by a shoulder 36, itself extended by an attachment portion 38 opposite the square 20.
  • This attachment part comprises a bore 40 (FIGS. 5 and 7), of the same diameter as that of the bore 31, and into which at least two, preferably three, identical indexing grooves 42a, 42b and 42c (FIG. 7) open in rectangular cross-section.
  • the extreme grooves 42a and 42c are respectively angularly offset at an angle ⁇ of about 83 ° and at an angle ⁇ of about 75 ° (Figure 7) relative to the central groove 42b.
  • the right leg 30a ( Figure 6) of the yoke 30 further comprises a slide groove 44 ( Figure 6) of cross section identical to that of the grooves 42a to 42c.
  • the attachment portion 38 is adapted to be received between the legs 30a and 30b of the yoke play close.
  • the hinge 16 is a pivot joint.
  • a cylindrical axis 50 with circular cross-section cooperates, with the clearance, with the bores 31 and 40.
  • the bore 33 receives, with the game, an actuating button 52 also cylindrical circular cross section that extends the axis 50.
  • a shoulder 53 delimits the knob 52 and the axis 50.
  • the axis 50 and the knob 52 come together with material, for example machined steel.
  • a compression spring 54 is supported on the one hand on the shoulder 53 and on the other hand in the bottom of the bore 33 ( Figures 5 and 6).
  • the axis 50 comprises an axial notch 55 which receives a key 56 (Figure 6).
  • the free end of the axis 50 opposite the button 52 is equipped with an elastic ring 58 ( Figure 6) adapted to abut against the bottom of the bore 32 ( Figure 5).
  • the key 56 slides in the groove 44. It is also able to reversibly engage one of the indexing grooves 42a to 42c, while remaining in engagement with the groove 44.
  • the indexing grooves 42a to 42c, the groove of the slide 44, the notch 55 and the key 56 of the shaft 50 constitute an angular indexing device for the articulation 16 of the endpiece 14 relative to the body 12 .
  • the tool 10 comprises two unlocking positions. A first position is defined when the key 56 engages the extreme groove 42a (FIG. 7), while being engaged in the groove 44. A second position is defined when the key 56 engages the other extreme groove 42c (FIG. by being engaged in the groove 44.
  • unlocking positions correspond to a configuration of the tool in which the tip 14 is disposed substantially perpendicular to the body 12, the angle being equal to 75 ° or 83 °.
  • the handle 18 is disposed at a sufficient distance substantially parallel to the housing 3 of the engine, given the complementary angle respectively equal to 15 ° or 7 °. This prevents the user's hand from touching the motor housing.
  • the tool 10 comprises a single unscrewing position which corresponds to the arrangement in which the key 56 engages the central groove 42b, while being engaged in the groove 44.
  • This unscrewing position corresponds to a configuration of the tool in which the body 12 and the tip 14 are arranged substantially parallel, preferably in alignment.
  • the spring 54 tends to push the button 52 out of the bore 33 and the elastic ring 58 is in axial abutment against the bottom of the bore 32
  • the key 56 is normally engaged in one of the indexing grooves 42a to 42c, while being engaged in the guide groove 44.
  • the user changes the angular orientation between the tip 14 and the body 12 in a rotational movement represented by the curved arrow R of FIG. 6 until the key 56 is aligned with the indexing groove of the position sought.
  • the spring 54 has a tendency to relax by automatically urging the axis 50 towards its state of rest in which the key 56 is normally engaged in the corresponding indexing groove, while being engaged in the guide groove 44.
  • the body 12 and the tip 14 are angularly locked relative to each other in the desired unlocking or unscrewing position.
  • the sleeve 26 comprises, in Figure 4, a cylindrical sleeve 60 of circular outer cross section extending along the axis Z-Z, extended by a lower radial flange 62 disposed at the lower free end 26a of the sleeve.
  • Two pins 64 project radially from the outer surface of the running part of the sleeve 60, diametrically opposite and close to the flange 62.
  • the sheath 26 is advantageously molded from a piece of rigid plastic material.
  • the sleeve 26 comprises a through axial bore 66 ( Figure 5) whose diameter corresponds to the clearance close to that of the central shaft 34.
  • the sleeve 26 is slidably disposed relative to the shaft 34 of the tip. It is in lower abutment against the shoulder 36 of the tip.
  • the sleeve 60 From the upper free end 26b ( Figure 4) of the sleeve, the sleeve 60 also comprises an axial bore 68 ( Figure 5) coaxial with the bore 66. The sleeve also comprises a transverse bore 70 ( Figure 5) near this same upper end of the sheath.
  • the bore 68 of the sheath 26 is adapted to receive a ring 72 and a compression spring 74. These are mounted around the barrel 34 inside the bore 68. The lower end of the spring 74 is supported in the bottom of the bore 68, while that the ring 72 caps the upper end of the spring so as to compress slightly.
  • the ring 72 comprises a transverse bore 76 (FIG. 6) passing right through and adapted to receive a pin 78.
  • the drum 34 is further provided with a transverse bore 80 (FIGS. 4 and 6) disposed near the square 20 and adapted to also receive the pin 78.
  • the pin 78 When mounting the tool, once the transverse bores 70, 76 and 80 in alignment, the pin 78 is inserted through the sleeve 26 into the barrel 34 and the ring 72.
  • the length of the pin is such that it secures the end piece 14 and the ring 72 and that the sleeve 26 is movable axially in relation to the barrel 34 of the endpiece 14 against the spring 74.
  • the sleeve 26, the ring 72 and the spring 74 constitute a means of ejection of the sleeve 22 connected to the working end 20.
  • the tool comprises a socket 22 for indirect coupling of the working end 20 with the plug 1 and the user wishes to change said socket, it acts on the flange 62 along the arrow F2 shown in FIG. 7.
  • the operator moves the sleeve 26 towards the working end 20 against the spring 74 which compresses. This force biases the bushing 22 towards the uncoupling of the working end 20 while the retaining force of the holding element 21 blocks the bushing 22 relative to said square.
  • the user can easily replace the bushing among a plurality of adaptable bushings on the working end 20.
  • Figures 5 and 6 show the receptacle 28 in the form of a concave cup of a small capacity, but sufficient to collect the oil seeps during unscrewing and to protect the hand of the operator. It is advantageously molded from a piece of semi-rigid plastic material.
  • the receptacle 28 is mounted on the sheath 26 by sliding from the upper end 26b thereof. It comprises an inner skirt 90, an outer rim 92 and a bottom 94 (FIG. 6). The receptacle is oriented such that the bottom 94 is disposed on the side of the hinge 16 so as to receive the used oil from the engine.
  • the skirt 90 is adapted to cooperate with the sleeve 60 by shape adjustment.
  • the inner wall 96 ( Figure 5) of the skirt comprises a double groove 98a and 98b ( Figures 4, 8 and 9) bayonet-shaped ( Figure 9) to receive each of the two pins 64.
  • the receptacle 28 is connected removably to the sheath 26 and can be locked to said sheath. In this locked state, the receptacle 28 is stationary and rests on the flange 62.
  • FIG. 8 only shows the receptacle 28 along the arrow VIII of FIG.
  • the outer rim 92 is generally circular in shape. It comprises at least one flat, preferably three flats 100a to 100c arranged at regular angular intervals and separated in pairs by a flare 102a to 102c.
  • the flats 100a to 100c holds it by gravity in a stable position on the plane, thus reducing the risk of falling of the tool.
  • the endpiece comprises a working end in the form of a square male coupled to a socket.
  • the working end comprises a female cavity coupled to the sleeve by a complementary shape.
  • the body and the handle are either offset parallel to each other, or oriented slightly obliquely relative to each other, so as to form a crank to unscrew more quickly the cap of a hand.
  • the receptacle is adapted to contain a larger volume of used oil and include a device for discharging this oil to a recovery container.
  • the user works efficiently and quickly to maneuver the drain plug. It performs its tasks properly and safely in relation to any splashing of oil. Finally, he can quickly change the socket of his tool to work on different types of vehicle.
  • the tool is simple, compact, and cost-effective manufacturing.

Abstract

The invention relates to a tool (10), including: a body (12) having a handle (18); an end piece (14) connected to the body and having a working end for engaging with the plug (1) by means of direct or indirect coupling; and a receptacle (28) arranged between the working end and the handle, wherein the body and the working end are arranged relative to one another in at least one untightening position. A hinge (16) having an indexing device connects the body and the tip, the indexing device reversibly locking the hinge in a first unlocked position, in which the body acts as a lever arm, and/or in said untightening position.

Description

Outil amélioré de manœuvre d'un bouchon de vidange d'un moteur thermique Improved tool for operating a drain plug of a heat engine
La présente invention concerne un outil de manœuvre d'un bouchon de vidange d'un moteur thermique, l'outil étant du type comprenant un corps allongé comportant une extrémité libre formant une poignée ; un embout relié au corps et muni d'une extrémité de travail, en particulier un carré mâle, l'extrémité de travail étant apte à coopérer par accouplement direct ou indirect avec ledit bouchon ; un réceptacle destiné à recevoir l'huile usagée du moteur, ledit réceptacle étant disposé entre l'extrémité de travail et la poignée ; le corps et l'extrémité de travail étant agencés l'un par rapport à l'autre selon, au moins, une position de dévissage dans laquelle l'outil est adapté pour que l'utilisateur dévisse le bouchon lorsque ce dernier a été préalablement débloqué. The present invention relates to a tool for operating a drain plug of a heat engine, the tool being of the type comprising an elongate body having a free end forming a handle; a tip connected to the body and provided with a working end, in particular a male square, the working end being adapted to cooperate by direct or indirect coupling with said plug; a receptacle for receiving the used oil from the engine, said receptacle being disposed between the working end and the handle; the body and the working end being arranged relative to one another according to at least one unscrewing position in which the tool is adapted so that the user unscrews the cap when the latter has been previously unlocked .
Dans le domaine de la maintenance automobile, il est fréquent de vidanger l'huile de moteur des véhicules à entretenir. Pour cela, le véhicule est installé sur un pont élévateur, et l'opérateur travaille sous le moteur pour manœuvrer le bouchon de vidange dans des conditions satisfaisantes et collecter l'huile s'écoulant du moteur dans un récipient approprié.  In the field of car maintenance, it is common to drain engine oil vehicles to maintain. For this, the vehicle is installed on a lift, and the operator works under the engine to maneuver the drain plug under satisfactory conditions and collect the oil flowing from the engine into a suitable container.
Il est connu du brevet FR-A1 -2498107 d'utiliser une clé à réceptacle pour la vidange des moteurs. La clé comprend un corps en forme de tube relié à un carré articulé apte à coopérer avec le bouchon de vidange. Un réceptacle est adapté au tube et reçoit le jet d'huile usagée du moteur. Le tube est percé latéralement d'un orifice permettant d'introduire un bras complémentaire en forme de tige d'acier pour effectuer le déblocage du bouchon. La partie du tube située sous le réceptacle fait office de poignée pour permettre à l'utilisateur de dévisser le bouchon. La clé à réceptacle équipée du bras permet le déblocage et le dévissage du bouchon sans risque d'éclaboussures d'huile usagée sur la main. Toutefois, la mise en œuvre de cette clé requiert un bras complémentaire.  It is known from FR-A1 -2498107 to use a key receptacle for the emptying of the engines. The key comprises a tube-shaped body connected to an articulated square adapted to cooperate with the drain plug. A receptacle is fitted to the tube and receives the used oil jet from the engine. The tube is pierced laterally with an orifice for introducing a complementary arm shaped steel rod to unlock the plug. The portion of the tube under the receptacle serves as a handle to allow the user to unscrew the cap. The key with receptacle equipped with the arm allows the unblocking and unscrewing of the cap without the risk of splashing used oil on the hand. However, the implementation of this key requires a complementary arm.
Le brevet FR-A1 -2677633 divulgue un dispositif de vidange pour moteurs thermiques comprenant un entonnoir sur lequel est adapté un goulot raccordant un tube d'évacuation de l'huile usagée. Cet ensemble est complété d'un outil de démontage du bouchon de vidange comportant une tige métallique fixé au goulot et surmontée d'un carré d'entraînement mâle destiné à recevoir une douille parmi une pluralité de douilles permettant l'accès à des bouchons de différents types. Le tube d'évacuation comprend deux trous diamétralement opposés destinés à recevoir une broche de démontage faisant office de levier pour le dévissage du bouchon. Un cardan peut être interposé entre la douille et le carré. Cependant, le dispositif est volumineux et sa mise en œuvre nécessite une broche de démontage. Le brevet FR-A1 -2584967 divulgue un outillage à main pour démonter un bouchon de vidange d'un carter à huile. Une gaine en forme d'entonnoir comporte une jupe percée d'un orifice central. Une poignée s'étend perpendiculairement ou en légère oblique par rapport à l'axe de l'entonnoir et s'emboîte dans la jupe. Une clé sous forme d'une barre cylindrique traverse l'emboîtement. La barre porte une tête polygonale interchangeable apte à engager le bouchon à dévisser. A l'opposé, elle comporte une tête moletée permettant de faire tourner la clé manuellement. La poignée est solidarisée à la clé pour débloquer le bouchon puis désolidarisée pour dévisser le bouchon. La poignée est creuse et l'emboîtement permet d'évacuer l'huile usagée depuis l'entonnoir jusqu'à l'extrémité de la poignée par laquelle l'huile s'écoule vers un récipient collecteur. L'outillage est, comme précédemment, volumineux et sa mise en œuvre est compliqué. Patent FR-A1 -2677633 discloses a discharge device for thermal engines comprising a funnel on which is fitted a neck connecting a discharge tube of the used oil. This assembly is completed with a disassembly tool of the drain plug having a metal rod fixed to the neck and surmounted by a male drive square for receiving a socket among a plurality of sockets allowing access to plugs of different kinds. The discharge tube comprises two diametrically opposed holes for receiving a disassembly pin acting as a lever for unscrewing the plug. A gimbal can be interposed between the bush and the square. However, the device is bulky and its implementation requires a disassembly pin. FR-A1 -2584967 discloses a hand tool for removing a drain plug of an oil sump. A funnel-shaped sheath has a skirt pierced with a central orifice. A handle extends perpendicularly or slightly oblique to the axis of the funnel and fits into the skirt. A key in the form of a cylindrical bar passes through the interlocking. The bar carries an interchangeable polygonal head adapted to engage the cap to be unscrewed. In contrast, it has a knurled head for turning the key manually. The handle is secured to the key to unlock the cap and then disengaged to unscrew the cap. The handle is hollow and the interlock allows to evacuate the used oil from the funnel to the end of the handle through which the oil flows to a collecting container. The tooling is, as before, bulky and its implementation is complicated.
Selon un aspect, l'invention a pour but d'améliorer la conception de l'outil de manœuvre d'un bouchon de vidange en simplifiant la mise en œuvre du déblocage et du dévissage.  According to one aspect, the invention aims to improve the design of the operating tool of a drain plug by simplifying the implementation of the release and unscrewing.
A cet effet, l'invention a pour objet un outil du type précité dont une articulation munie d'un dispositif d'indexation relie le corps et l'embout, le dispositif d'indexation bloquant de façon réversible l'articulation dans, au moins, une des positions parmi une première position de déblocage dans laquelle le corps de l'outil agit en bras de levier pour permettre à l'utilisateur de débloquer le bouchon et ladite position de dévissage.  For this purpose, the invention relates to a tool of the aforementioned type, a hinge provided with an indexing device connects the body and the endpiece, the indexing device reversibly blocking the joint in, at least , one of a first unlocking position in which the body of the tool acts as a lever arm to allow the user to unlock the cap and said unscrewing position.
Ainsi, l'invention assure un déblocage et un dévissage efficaces sans risque de perte d'un accessoire complémentaire, l'outil étant simple à réaliser.  Thus, the invention ensures an efficient release and unscrewing without the risk of losing a complementary accessory, the tool being simple to perform.
Selon d'autres caractéristiques :  According to other characteristics:
le corps et l'embout s'étendent respectivement suivant un premier axe longitudinal et un deuxième axe longitudinal et, dans la position de déblocage, les premier et deuxième axes sont disposés sensiblement perpendiculairement, et, dans la position de dévissage, les premier et deuxième axes sont disposés sensiblement parallèlement, en particulier sensiblement alignés ;  the body and the nozzle extend respectively along a first longitudinal axis and a second longitudinal axis and, in the unlocking position, the first and second axes are arranged substantially perpendicularly, and, in the unscrewing position, the first and second axes are arranged substantially parallel, in particular substantially aligned;
le dispositif d'indexation bloque de façon réversible l'articulation dans une deuxième position de déblocage du bouchon dans laquelle le corps de l'outil agit en bras de levier pour permettre à l'utilisateur de débloquer le bouchon, la deuxième position étant orientée sensiblement à l'opposé par rapport à la première position de déblocage ;  the indexing device reversibly blocks the articulation in a second unlocking position of the stopper in which the body of the tool acts as a lever arm to allow the user to unlock the stopper, the second position being oriented substantially opposite to the first unlocking position;
le corps comprend une chape recevant un axe de pivot et coiffant une partie d'attachement de l'embout mobile en pivot par rapport audit corps, l'axe de la chape recevant une clavette coopérant avec une rainure de guidage réalisée dans la chape et une pluralité de rainures d'indexation réalisées dans la partie d'attachement ; le dispositif d'indexation comporte un bouton d'activation destiné à libérer volontairement le blocage, et en ce qu'un premier moyen de sollicitation tend à positionner le dispositif d'indexation en position de repos correspondant au blocage de l'articulation ; the body comprises a clevis receiving a pivot axis and covering an attachment part of the pivotally movable endpiece relative to said body, the clevis pin receiving a key cooperating with a guide groove made in the clevis and a a plurality of indexing grooves made in the attachment portion; the indexing device comprises an activation button for deliberately releasing the blockage, and in that a first biasing means tends to position the indexing device in the rest position corresponding to the locking of the articulation;
- l'embout comprend un fût de forme allongée, de telle manière que, dans au moins la première position de déblocage, le corps est disposé à distance suffisante sensiblement parallèlement au moteur ;  - The tip comprises an elongate shaft, such that in at least the first unlocking position, the body is disposed at a sufficient distance substantially parallel to the motor;
Selon un autre aspect, l'invention a pour but d'éviter la chute intempestive de l'outil du type précité. Ce problème est résolu par le fait que, dans un outil de manœuvre d'un bouchon de vidange du type précité plus haut, le réceptacle comprend un rebord de forme générale circulaire muni d'au moins un méplat, de préférence de trois méplats disposés à intervalles réguliers angulairement.  According to another aspect, the purpose of the invention is to avoid the inadvertent fall of the tool of the aforementioned type. This problem is solved by the fact that, in a maneuvering tool of a drain plug of the type mentioned above, the receptacle comprises a generally circular rim provided with at least one flat, preferably three flats arranged at regular intervals angularly.
Ainsi, l'outil est maintenu stable sur un plan de pose même incliné.  Thus, the tool is kept stable on an even inclined laying plan.
Plus particulièrement, il est prévu que  In particular, it is expected that
- le réceptacle est disposé du côté de l'embout par rapport à ladite articulation ; le réceptacle est relié à l'embout de manière amovible ;  the receptacle is disposed on the end of the endpiece relative to said articulation; the receptacle is connected to the tip removably;
un dispositif de verrouillage, en particulier un dispositif à baïonnette, immobilise le réceptacle par rapport à l'embout ;  a locking device, in particular a bayonet device, immobilizes the receptacle relative to the tip;
Selon un autre aspect, l'invention a pour but d'améliorer la polyvalence de l'outil de vidange. Ce problème est résolu par le fait que, dans un outil de manœuvre d'un bouchon de vidange du type indiqué plus haut, l'extrémité de travail est accouplée indirectement au bouchon par l'intermédiaire d'une douille et en ce que l'embout reçoit extérieurement un fourreau d'éjection de la douille reliée à l'extrémité de travail de l'embout.  In another aspect, the invention aims to improve the versatility of the emptying tool. This problem is solved by the fact that, in a maneuvering tool of a drain plug of the type indicated above, the working end is coupled indirectly to the plug via a bushing and in that the nozzle receives externally an ejection sleeve of the sleeve connected to the working end of the tip.
Ainsi, l'outil permet un changement rapide des douilles.  Thus, the tool allows a quick change of the sockets.
Suivant d'autres caractéristiques,  According to other characteristics,
le fourreau d'éjection comprend un manchon entourant l'embout et monté coulissant par rapport à celui-ci, ledit fourreau étant mobile entre une position de repos dans laquelle il affleure la douille ou dans laquelle il est axialement en retrait par rapport à ladite douille, et une position d'éjection dans laquelle le déplacement axial dudit fourreau par rapport à l'embout en direction de l'extrémité de travail de ce dernier mène le fourreau au contact de la douille et désaccouple celle-ci de ladite extrémité de travail ;  the ejection sleeve comprises a sleeve surrounding the tip and slidably mounted relative thereto, said sleeve being movable between a rest position in which it is flush with the sleeve or in which it is axially recessed relative to said socket , and an ejection position in which the axial displacement of said sleeve relative to the endpiece towards the working end of the latter leads the sleeve into contact with the sleeve and uncouples it from said working end;
un deuxième moyen de sollicitation, en particulier un ressort de compression, agit sur le manchon et tend à disposer le fourreau dans sa position de repos.  a second biasing means, in particular a compression spring, acts on the sleeve and tends to arrange the sleeve in its rest position.
L'invention et ses avantages seront mieux compris à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels : Les figures 1 et 2 sont respectivement des vues en perspective de la mise en œuvre d'un outil selon l'invention suivant les positions respectives de déblocage et de dévissage, The invention and its advantages will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which: Figures 1 and 2 are respectively perspective views of the implementation of a tool according to the invention according to the respective positions of unlocking and unscrewing,
les figures 3 et 4 sont respectivement une vue de face et une vue de face éclatée de l'outil selon l'invention,  FIGS. 3 and 4 are respectively a front view and an exploded front view of the tool according to the invention,
les figures 5 et 6 sont des vues en coupe longitudinale partielle suivant les positions respectives de déblocage et de dévissage des figures 1 et 2 montrant le fonctionnement du dispositif d'indexation de l'articulation de l'outil selon l'invention,  FIGS. 5 and 6 are views in partial longitudinal section according to the respective unlocking and unscrewing positions of FIGS. 1 and 2 showing the operation of the device for indexing the articulation of the tool according to the invention,
- la figure 7 est une vue en coupe longitudinale partielle orientée à 90° par rapport aux vues des figures 5 et 6 montrant l'articulation de l'outil et le fonctionnement du dispositif d'indexation selon l'invention, ainsi que le fonctionnement du dispositif d'éjection d'une douille accouplée à l'outil selon l'invention,  FIG. 7 is a partial longitudinal sectional view oriented at 90 ° with respect to the views of FIGS. 5 and 6 showing the articulation of the tool and the operation of the indexing device according to the invention, as well as the operation of the device for ejection of a socket coupled to the tool according to the invention,
- la figure 8 est une vue de dessus de l'outil selon le flèche VIII de la figure 3, la figure 9 est une vue en coupe partielle selon les lignes IX-IX de la figure 8. Les termes « inférieur », « supérieur », « droite » et « gauche » utilisés dans la description qui va suivre, s'entendent suivant l'orientation des figures 1 à 7.  FIG. 8 is a view from above of the tool according to arrow VIII of FIG. 3, FIG. 9 is a partial sectional view along the lines IX-IX of FIG. 8. The terms "lower", "upper" and , "Right" and "left" used in the description which follows, are understood according to the orientation of Figures 1 to 7.
Les figures 1 et 2 représentent un soubassement d'un véhicule à moteur thermique monté sur un pont. La vidange du bloc moteur du véhicule s'opère en évacuant l'huile usagée par un trou obturé habituellement par un bouchon 1 de vidange fileté se trouvant dans la partie la plus basse du carter 3 de ce bloc moteur. Le bouchon 1 comporte un logement 5 (figures 5 et 6) permettant sa manœuvre.  Figures 1 and 2 show a base of a thermal engine vehicle mounted on a bridge. Draining the engine block of the vehicle is effected by discharging the used oil through a hole usually closed by a threaded drain plug 1 located in the lowest part of the housing 3 of the engine block. The plug 1 comprises a housing 5 (Figures 5 and 6) for its maneuver.
La figure 1 représente un outil de manœuvre 10 selon l'invention en position de déblocage du bouchon 1 . Il comprend un corps 12 allongé s'étendant suivant un axe longitudinal X-X et un embout 14 allongé s'étendant suivant un axe longitudinal 7.-7..  FIG. 1 represents a maneuvering tool 10 according to the invention in the unlocking position of the plug 1. It comprises an elongated body 12 extending along a longitudinal axis X-X and an elongated end 14 extending along a longitudinal axis 7.-7.
Une articulation 16, de préférence à pivot, relie le corps 12 et l'embout 14. L'extrémité libre du corps 12 comprend une poignée d'actionnement 18 pour la prise en main par l'utilisateur.  A hinge 16, preferably pivoted, connects the body 12 and the tip 14. The free end of the body 12 comprises an actuating handle 18 for the grip by the user.
L'embout 14 est pourvu d'une extrémité de travail 20 (figures 3 et 4) muni d'un élément de maintien 21 (figure 5), en particulier un carré d'entraînement mâle équipé d'une bille de rétention chargée par un ressort de compression, apte à coopérer par accouplement ferme avec une douille 22.  The end piece 14 is provided with a working end 20 (FIGS. 3 and 4) provided with a holding element 21 (FIG. 5), in particular a male training square equipped with a retention ball loaded by a compression spring, adapted to cooperate by firm coupling with a sleeve 22.
La douille comporte une partie entraînante ou base 22a (figure 5) qui s'engage par complément de forme avec l'extrémité de travail 20 et une partie entraînée ou saillie 24 (figures 3 à 6) qui s'engage par complément de forme dans le logement 5 du bouchon 1 . La saillie 24 comporte un dispositif magnétique 25 (figure 7) apte à retenir le bouchon 1 , lui-même métallique. The bushing comprises a driving part or base 22a (FIG. 5) which engages in complementary form with the working end 20 and a driven or protruding part 24 (FIGS. 3 to 6) which engages in complementary form in the housing 5 of the plug 1. The projection 24 comprises a magnetic device 25 (Figure 7) adapted to retain the plug 1, itself metal.
Dans cette configuration, l'extrémité de travail 20 est accouplée indirectement au bouchon 1 .  In this configuration, the working end 20 is coupled indirectly to the plug 1.
Dans une variante non représentée, l'extrémité de travail 20 est accouplée directement avec bouchon 1 par complément de forme. Toutefois, cette variante réduit la polyvalence de l'outil.  In a variant not shown, the working end 20 is coupled directly with plug 1 by complement of form. However, this variant reduces the versatility of the tool.
Un fourreau 26, relié à l'embout 14 et dont la fonction sera expliquée ultérieurement, coulisse par rapport à l'axe longitudinal de l'embout 14.  A sleeve 26, connected to the tip 14 and whose function will be explained later, slides relative to the longitudinal axis of the tip 14.
Un réceptacle 28 concave, destiné à recevoir l'huile usagée, est disposé entre l'extrémité de travail 20 et la poignée 18, du côté de l'embout 14 par rapport à l'articulation 16. Le réceptacle est relié à l'embout 14. De préférence, il peut être solidarisé de manière réversible au fourreau 26.  A concave receptacle 28, intended to receive the used oil, is disposed between the working end 20 and the handle 18, on the side of the endpiece 14 with respect to the articulation 16. The receptacle is connected to the endpiece 14. Preferably, it can be reversibly secured to the sheath 26.
Dans la position de déblocage, l'axe Z-Z de l'embout 14 est disposé sensiblement perpendiculairement par rapport à l'axe X-X du corps 12,  In the unlocking position, the Z-Z axis of the endpiece 14 is disposed substantially perpendicular to the X-X axis of the body 12,
Les figures 2 et 3 représentent l'outil de manœuvre 10 en position de dévissage du bouchon 1 . Dans cette position, l'axe Z-Z de l'embout 14 est disposé sensiblement parallèlement à l'axe X-X du corps 12, et en particulier les axes X-X et Z-Z sont sensiblement alignés.  Figures 2 and 3 show the operating tool 10 in the unscrewing position of the plug 1. In this position, the Z-Z axis of the tip 14 is disposed substantially parallel to the X-X axis of the body 12, and in particular the X-X and Z-Z axes are substantially aligned.
Sur la figure 4, une chape 30 prolonge le corps 12 à l'opposé de la poignée 18. La chape comprend une première 30a et une deuxième branche 30b disposées respectivement à droite et à gauche (figures 5 et 6). Un perçage 31 (figure 5) traverse la chape 30 et s'étend suivant un axe Y-Y perpendiculaire aux axes X-X et Z-Z.  In Figure 4, a yoke 30 extends the body 12 away from the handle 18. The yoke comprises a first 30a and a second leg 30b disposed respectively to the right and left (Figures 5 and 6). A bore 31 (FIG. 5) passes through the yoke 30 and extends along an axis Y-Y perpendicular to the axes X-X and Z-Z.
Un premier alésage 32 délimite le perçage 31 sur la face extérieure de la branche droite 30a de la chape (figure 5). Un deuxième alésage 33, de diamètre supérieur à celui de l'alésage 32, délimite le perçage 31 sur la face extérieure de la branche gauche 30b de la chape (figure 5) et s'étend de manière coaxiale par rapport au perçage 31 .  A first bore 32 defines the bore 31 on the outer face of the right leg 30a of the yoke (Figure 5). A second bore 33, of greater diameter than that of the bore 32, defines the bore 31 on the outer face of the left leg 30b of the yoke (FIG. 5) and extends coaxially with respect to the bore 31.
L'embout 14 présente axialement, depuis le carré 20, un fût central 34 cylindrique de section transversale circulaire délimitée par un épaulement 36, lui-même prolongé d'une partie d'attachement 38 opposée au carré 20. Cette partie d'attachement comporte un perçage 40 (figures 5 et 7), de même diamètre que celui du perçage 31 , et dans lequel débouchent, au moins deux, de préférence trois rainures d'indexation 42a, 42b et 42c (figure 7) identiques en section transversale rectangulaire.  The tip 14 has axially, from the square 20, a cylindrical central shaft 34 of circular cross section delimited by a shoulder 36, itself extended by an attachment portion 38 opposite the square 20. This attachment part comprises a bore 40 (FIGS. 5 and 7), of the same diameter as that of the bore 31, and into which at least two, preferably three, identical indexing grooves 42a, 42b and 42c (FIG. 7) open in rectangular cross-section.
En particulier, les rainures extrêmes 42a et 42c sont respectivement décalées angulairement suivant un angle a d'environ 83° et suivant un angle β d'environ 75° (figure 7) par rapport à la rainure centrale 42b. La branche droite 30a (figure 6) de la chape 30 comprend, en outre, une rainure de coulisse 44 (figure 6) de section transversale identique à celle des rainures 42a à 42c. In particular, the extreme grooves 42a and 42c are respectively angularly offset at an angle α of about 83 ° and at an angle β of about 75 ° (Figure 7) relative to the central groove 42b. The right leg 30a (Figure 6) of the yoke 30 further comprises a slide groove 44 (Figure 6) of cross section identical to that of the grooves 42a to 42c.
La partie d'attachement 38 est adaptée pour être reçue entre les branches 30a et 30b de la chape au jeu près. L'articulation 16 est une articulation à pivot.  The attachment portion 38 is adapted to be received between the legs 30a and 30b of the yoke play close. The hinge 16 is a pivot joint.
Un axe 50 cylindrique à section transversale circulaire coopère, au jeu près, avec les perçages 31 et 40. L'alésage 33 reçoit, au jeu près, un bouton 52 d'activation également cylindrique à section transversale circulaire qui prolonge l'axe 50. Un épaulement 53 délimite le bouton 52 et l'axe 50. De préférence, l'axe 50 et le bouton 52 viennent ensemble de matière, par exemple en acier usiné. Un ressort de compression 54 prend appui d'une part sur l'épaulement 53 et d'autre part dans le fond de l'alésage 33 (figures 5 et 6).  A cylindrical axis 50 with circular cross-section cooperates, with the clearance, with the bores 31 and 40. The bore 33 receives, with the game, an actuating button 52 also cylindrical circular cross section that extends the axis 50. A shoulder 53 delimits the knob 52 and the axis 50. Preferably, the axis 50 and the knob 52 come together with material, for example machined steel. A compression spring 54 is supported on the one hand on the shoulder 53 and on the other hand in the bottom of the bore 33 (Figures 5 and 6).
L'axe 50 comprend une encoche axiale 55 qui reçoit une clavette 56 (figure 6). L'extrémité libre de l'axe 50 opposée au bouton 52 est équipée d'un anneau élastique 58 (figure 6) adapté pour buter contre le fond de l'alésage 32 (figure 5).  The axis 50 comprises an axial notch 55 which receives a key 56 (Figure 6). The free end of the axis 50 opposite the button 52 is equipped with an elastic ring 58 (Figure 6) adapted to abut against the bottom of the bore 32 (Figure 5).
La clavette 56 coulisse dans la rainure 44. Elle est également apte à engager de manière réversible l'une parmi les rainures d'indexation 42a à 42c, tout en restant en prise dans la rainure 44.  The key 56 slides in the groove 44. It is also able to reversibly engage one of the indexing grooves 42a to 42c, while remaining in engagement with the groove 44.
Les rainures d'indexation 42a à 42c, la rainure de coulisse 44, l'encoche 55 et la clavette 56 de l'axe 50 constitue un dispositif d'indexation angulaire de l'articulation 16 de l'embout 14 par rapport au corps 12.  The indexing grooves 42a to 42c, the groove of the slide 44, the notch 55 and the key 56 of the shaft 50 constitute an angular indexing device for the articulation 16 of the endpiece 14 relative to the body 12 .
L'outil 10 comprend deux positions de déblocage. Une première position est définie lorsque la clavette 56 engage la rainure extrême 42a (figure 7), tout en étant en prise dans la rainure 44. Une deuxième position est définie lorsque la clavette 56 engage l'autre rainure extrême 42c (figure7), tout en étant en prise dans la rainure 44.  The tool 10 comprises two unlocking positions. A first position is defined when the key 56 engages the extreme groove 42a (FIG. 7), while being engaged in the groove 44. A second position is defined when the key 56 engages the other extreme groove 42c (FIG. by being engaged in the groove 44.
Ces deux positions de déblocage correspondent à une configuration de l'outil dans laquelle l'embout 14 est disposé sensiblement perpendiculairement par rapport au corps 12, l'angle étant égal à 75° ou 83°. Selon la position de déblocage choisie, la poignée 18 est disposée à distance suffisante sensiblement parallèlement au carter 3 du moteur, compte tenu de l'angle complémentaire respectivement égal à 15° ou 7°. Cela évite à la main de l'utilisateur de toucher le carter du moteur.  These two unlocking positions correspond to a configuration of the tool in which the tip 14 is disposed substantially perpendicular to the body 12, the angle being equal to 75 ° or 83 °. Depending on the unlocking position chosen, the handle 18 is disposed at a sufficient distance substantially parallel to the housing 3 of the engine, given the complementary angle respectively equal to 15 ° or 7 °. This prevents the user's hand from touching the motor housing.
L'outil 10 comprend une position de dévissage unique qui correspond à l'agencement dans lequel la clavette 56 engage la rainure centrale 42b, tout en étant en prise dans la rainure 44. Cette position de dévissage correspond à une configuration de l'outil dans laquelle le corps 12 et l'embout 14 sont disposés sensiblement parallèlement, de préférence en alignement. A l'état de repos de l'axe 50 (figure 5), le ressort 54 tend à repousser le bouton 52 en dehors de l'alésage 33 et l'anneau élastique 58 est en butée axiale contre le fond de l'alésage 32. La clavette 56 est normalement engagée dans l'une des rainures d'indexation 42a à 42c, tout en étant en prise dans la rainure de guidage 44. The tool 10 comprises a single unscrewing position which corresponds to the arrangement in which the key 56 engages the central groove 42b, while being engaged in the groove 44. This unscrewing position corresponds to a configuration of the tool in which the body 12 and the tip 14 are arranged substantially parallel, preferably in alignment. In the state of rest of the axis 50 (FIG. 5), the spring 54 tends to push the button 52 out of the bore 33 and the elastic ring 58 is in axial abutment against the bottom of the bore 32 The key 56 is normally engaged in one of the indexing grooves 42a to 42c, while being engaged in the guide groove 44.
Lorsque l'utilisateur souhaite ajuster la position angulaire de l'embout 14 par rapport au corps 12, il appuie sur le bouton 52 suivant la flèche F1 représentée sur la figure 6. L'axe 50 se déplace vers la droite à rencontre du ressort 54 qui se comprime. La clavette 56 est désengagée des rainures d'indexation 42a à 42c tout en restant en prise dans la rainure de guidage 44.  When the user wishes to adjust the angular position of the tip 14 relative to the body 12, he presses the button 52 along the arrow F1 shown in Figure 6. The axis 50 moves to the right against the spring 54 which is compressed. The key 56 is disengaged from the indexing grooves 42a to 42c while remaining in engagement with the guide groove 44.
L'utilisateur modifie l'orientation angulaire entre l'embout 14 et le corps12 suivant un mouvement de rotation représenté par la flèche courbe R de la figure 6 jusqu'à ce que la clavette 56 soit alignée avec la rainure d'indexation de la position recherchée.  The user changes the angular orientation between the tip 14 and the body 12 in a rotational movement represented by the curved arrow R of FIG. 6 until the key 56 is aligned with the indexing groove of the position sought.
Dans cette configuration d'alignement, l'opérateur relâche l'effort de poussée sur le bouton 52. Le ressort 54 a tendance à se détendre en sollicitant automatiquement l'axe 50 vers son état de repos dans lequel la clavette 56 est normalement engagée dans la rainure d'indexation correspondante, tout en étant en prise dans la rainure de guidage 44. Le corps 12 et l'embout 14 sont bloqués angulairement l'un par rapport à l'autre dans la position de déblocage ou de dévissage recherchée.  In this alignment configuration, the operator releases the pushing force on the button 52. The spring 54 has a tendency to relax by automatically urging the axis 50 towards its state of rest in which the key 56 is normally engaged in the corresponding indexing groove, while being engaged in the guide groove 44. The body 12 and the tip 14 are angularly locked relative to each other in the desired unlocking or unscrewing position.
Le fourreau 26 comprend, sur la figure 4, un manchon cylindrique 60 de section transversale extérieure circulaire s'étendant suivant l'axe Z-Z, prolongé d'une collerette radiale 62 inférieure disposée à l'extrémité libre inférieure 26a du fourreau. Deux pions 64 s'étendent en saillie radiale par rapport à la surface extérieure de la partie courante du manchon 60, de manière diamétralement opposée et à proximité de la collerette 62.  The sleeve 26 comprises, in Figure 4, a cylindrical sleeve 60 of circular outer cross section extending along the axis Z-Z, extended by a lower radial flange 62 disposed at the lower free end 26a of the sleeve. Two pins 64 project radially from the outer surface of the running part of the sleeve 60, diametrically opposite and close to the flange 62.
Le fourreau 26 est avantageusement moulé d'une pièce en matière plastique rigide.  The sheath 26 is advantageously molded from a piece of rigid plastic material.
Le fourreau 26 comprend un perçage axial traversant 66 (figure 5) dont le diamètre correspond au jeu près à celui du fût central 34. Le fourreau 26 est disposé coulissant par rapport au fût 34 de l'embout. Il est en butée inférieure contre l'épaulement 36 de l'embout.  The sleeve 26 comprises a through axial bore 66 (Figure 5) whose diameter corresponds to the clearance close to that of the central shaft 34. The sleeve 26 is slidably disposed relative to the shaft 34 of the tip. It is in lower abutment against the shoulder 36 of the tip.
A partir de l'extrémité libre supérieure 26b (figure 4) du fourreau, le manchon 60 comprend également un alésage axial 68 (figure 5) coaxial au perçage 66. Le manchon comprend aussi un perçage transversal 70 (figure 5) à proximité de cette même extrémité supérieure du fourreau.  From the upper free end 26b (Figure 4) of the sleeve, the sleeve 60 also comprises an axial bore 68 (Figure 5) coaxial with the bore 66. The sleeve also comprises a transverse bore 70 (Figure 5) near this same upper end of the sheath.
L'alésage 68 du fourreau 26 est adapté pour recevoir une bague 72 et un ressort de compression 74. Ces derniers sont montés autour du fût 34 à l'intérieur de l'alésage 68. L'extrémité inférieure du ressort 74 prend appui dans le fond de l'alésage 68, tandis que la bague 72 coiffe l'extrémité supérieure du ressort de manière à le compresser légèrement. La bague 72 comporte un perçage transversal 76 (figure 6) traversant de part en part et adapté pour recevoir une goupille 78. The bore 68 of the sheath 26 is adapted to receive a ring 72 and a compression spring 74. These are mounted around the barrel 34 inside the bore 68. The lower end of the spring 74 is supported in the bottom of the bore 68, while that the ring 72 caps the upper end of the spring so as to compress slightly. The ring 72 comprises a transverse bore 76 (FIG. 6) passing right through and adapted to receive a pin 78.
Le fût 34 est, en outre, pourvu d'un perçage transversal 80 (figures 4 et 6) disposé à proximité du carré 20 et adapté pour recevoir également la goupille 78.  The drum 34 is further provided with a transverse bore 80 (FIGS. 4 and 6) disposed near the square 20 and adapted to also receive the pin 78.
Au montage de l'outil, une fois les perçages transversaux 70, 76 et 80 en alignés, la goupille 78 est insérée, à travers le fourreau 26, dans le fût 34 et dans la bague 72. La longueur de la goupille est telle qu'elle solidarise l'embout 14 et la bague 72 et que le fourreau 26 est mobile en coulisse axiale par rapport au fût 34 de l'embout 14 à rencontre du ressort 74.  When mounting the tool, once the transverse bores 70, 76 and 80 in alignment, the pin 78 is inserted through the sleeve 26 into the barrel 34 and the ring 72. The length of the pin is such that it secures the end piece 14 and the ring 72 and that the sleeve 26 is movable axially in relation to the barrel 34 of the endpiece 14 against the spring 74.
Lorsque le fourreau 26 est en position de repos, représentée sur les figures 5 et 6, il est en butée axiale contre l'épaulement 36 et son extrémité libre supérieure 26b affleure ou est en retrait axial par rapport à la base 22a de la douille 22 accouplée au carré 20 (figures 5 et 6).  When the sleeve 26 is in the rest position, shown in Figures 5 and 6, it is in axial abutment against the shoulder 36 and its upper free end 26b is flush or is recessed axially relative to the base 22a of the sleeve 22 coupled to the square 20 (Figures 5 and 6).
Le fourreau 26, la bague 72 et le ressort 74 constitue un moyen d'éjection de la douille 22 reliée à l'extrémité de travail 20.  The sleeve 26, the ring 72 and the spring 74 constitute a means of ejection of the sleeve 22 connected to the working end 20.
Lorsque l'outil comprend une douille 22 pour un accouplement indirect de l'extrémité de travail 20 avec le bouchon 1 et que l'utilisateur souhaite changer ladite douille, il agit sur la collerette 62 suivant la flèche F2 représentée sur la figure 7.  When the tool comprises a socket 22 for indirect coupling of the working end 20 with the plug 1 and the user wishes to change said socket, it acts on the flange 62 along the arrow F2 shown in FIG. 7.
L'opérateur déplace le fourreau 26 vers l'extrémité de travail 20 à rencontre du ressort 74 qui se comprime. Cet effort sollicite la douille 22 vers le désaccouplement de l'extrémité de travail 20 tandis que l'effort de retenue de l'élément de maintien 21 bloque la douille 22 par rapport audit carré.  The operator moves the sleeve 26 towards the working end 20 against the spring 74 which compresses. This force biases the bushing 22 towards the uncoupling of the working end 20 while the retaining force of the holding element 21 blocks the bushing 22 relative to said square.
Lorsque l'effort exercé par le fourreau 26 sur la douille 22 est tel que l'effort de retenue est surmonté, le fourreau 26 atteint une position axiale dans laquelle la douille 22 est totalement désaccouplée et expulsée du carré 20 suivant la flèche d représentée sur la figure 7.  When the force exerted by the sleeve 26 on the sleeve 22 is such that the retaining force is overcome, the sleeve 26 reaches an axial position in which the sleeve 22 is completely uncoupled and expelled from the square 20 along the arrow d shown on Figure 7.
L'utilisateur relâche ensuite l'effort sur le fourreau 26, ce qui permet la détente du ressort 74 et le retour en position de repos dudit fourreau. Ainsi, l'utilisateur peut remplacer facilement la douille parmi une pluralité de douilles adaptables sur l'extrémité de travail 20.  The user then releases the force on the sheath 26, which allows the relaxation of the spring 74 and the return to the rest position of said sheath. Thus, the user can easily replace the bushing among a plurality of adaptable bushings on the working end 20.
Les figures 5 et 6 représentent le réceptacle 28 sous la forme d'une coupelle concave d'une faible capacité, mais suffisante pour recueillir les suintements d'huile lors du dévissage et pour protéger la main de l'opérateur. Il est avantageusement moulé d'une pièce en matière plastique semi-rigide. Le réceptacle 28 est monté sur le fourreau 26 par coulisse depuis l'extrémité supérieure 26b de celui-ci. Il comprend une jupe interne 90, un rebord externe 92 et un fond 94 (figure 6). Le réceptacle est orienté de telle manière que le fond 94 est disposé du côté de l'articulation 16 de façon à recevoir l'huile usagée issue du moteur. Figures 5 and 6 show the receptacle 28 in the form of a concave cup of a small capacity, but sufficient to collect the oil seeps during unscrewing and to protect the hand of the operator. It is advantageously molded from a piece of semi-rigid plastic material. The receptacle 28 is mounted on the sheath 26 by sliding from the upper end 26b thereof. It comprises an inner skirt 90, an outer rim 92 and a bottom 94 (FIG. 6). The receptacle is oriented such that the bottom 94 is disposed on the side of the hinge 16 so as to receive the used oil from the engine.
La jupe 90 est adaptée pour coopérer avec le manchon 60 par ajustement de forme. La paroi interne 96 (figure 5) de la jupe comprend une double rainure 98a et 98b (figures 4, 8 et 9) en forme de baïonnette (figure 9) afin de recevoir chacun des deux pions 64. Ainsi, le réceptacle 28 est relié de manière amovible au fourreau 26 et peut être verrouillé audit fourreau. Dans cet état verrouillé, le réceptacle 28 est immobile et repose sur la collerette 62.  The skirt 90 is adapted to cooperate with the sleeve 60 by shape adjustment. The inner wall 96 (Figure 5) of the skirt comprises a double groove 98a and 98b (Figures 4, 8 and 9) bayonet-shaped (Figure 9) to receive each of the two pins 64. Thus, the receptacle 28 is connected removably to the sheath 26 and can be locked to said sheath. In this locked state, the receptacle 28 is stationary and rests on the flange 62.
Pour la clarté du dessin, la figure 8 représente uniquement le réceptacle 28 suivant la flèche VIII de la figure 3.  For the sake of clarity, FIG. 8 only shows the receptacle 28 along the arrow VIII of FIG.
Le rebord externe 92 est de forme générale circulaire. Il comprend au moins un méplat, de préférence trois méplats 100a à 100c disposés à intervalles réguliers angulairement et séparés deux à deux par un arrondi 102a à 102c. Lorsque l'outil 10 est équipé du réceptacle 28 et posé sur un plan de pose, au moins un des méplats 100a à 100c le maintient par gravité en position stable sur le plan, diminuant ainsi le risque de chute de l'outil.  The outer rim 92 is generally circular in shape. It comprises at least one flat, preferably three flats 100a to 100c arranged at regular angular intervals and separated in pairs by a flare 102a to 102c. When the tool 10 is equipped with the receptacle 28 and placed on a laying plane, at least one of the flats 100a to 100c holds it by gravity in a stable position on the plane, thus reducing the risk of falling of the tool.
Dans le mode de réalisation décrit précédemment, l'embout comprend une extrémité de travail en forme de carré mâle accouplée à une douille.  In the embodiment described above, the endpiece comprises a working end in the form of a square male coupled to a socket.
Dans une variante non représentée, l'extrémité de travail comporte une empreinte femelle accouplée à la douille par une forme complémentaire.  In a variant not shown, the working end comprises a female cavity coupled to the sleeve by a complementary shape.
Dans une autre variante non représentée, le corps et la poignée sont, soit décalés parallèlement l'un par rapport à l'autre, soit orientés en légère oblique l'un par rapport à l'autre, de manière à former une manivelle pour dévisser plus rapidement le bouchon d'une main.  In another variant not shown, the body and the handle are either offset parallel to each other, or oriented slightly obliquely relative to each other, so as to form a crank to unscrew more quickly the cap of a hand.
Dans une autre variante non représentée, le réceptacle est adapté pour contenir un volume d'huile usagée plus important et comporter un dispositif d'évacuation de cette huile vers un récipient de récupération.  In another variant not shown, the receptacle is adapted to contain a larger volume of used oil and include a device for discharging this oil to a recovery container.
Grâce à l'invention, l'utilisateur travaille efficacement et rapidement pour manœuvrer le bouchon de vidange. Il exécute ses tâches proprement et en sécurité par rapport aux éventuelles éclaboussures d'huile. Enfin, il peut changer rapidement la douille de son outil pour travailler sur différents types de véhicule. De plus, l'outil est simple, compact, et d'un coût de fabrication économique.  Thanks to the invention, the user works efficiently and quickly to maneuver the drain plug. It performs its tasks properly and safely in relation to any splashing of oil. Finally, he can quickly change the socket of his tool to work on different types of vehicle. In addition, the tool is simple, compact, and cost-effective manufacturing.

Claims

REVENDICATIONS
1 . Outil (10) de manœuvre d'un bouchon (1 ) de vidange d'un moteur thermique, l'outil étant du type comprenant un corps (12) allongé comportant une extrémité libre formant une poignée (18) ; un embout (14) relié au corps et muni d'une extrémité de travail (20), en particulier un carré mâle, l'extrémité de travail étant apte à coopérer par accouplement direct ou indirect avec ledit bouchon ; un réceptacle (28) destiné à recevoir l'huile usagée du moteur, ledit réceptacle étant disposé entre l'extrémité de travail (20) et la poignée (18) ; le corps (12) et l'extrémité de travail (20) étant agencés l'un par rapport à l'autre selon, au moins, une position de dévissage dans laquelle l'outil (10) est adapté pour que l'utilisateur dévisse le bouchon (1 ) lorsque ce dernier a été préalablement débloqué, caractérisé en ce qu'une articulation (16) munie d'un dispositif d'indexation (42a, 42b, 42c, 44, 55, 56) relie le corps (12) et l'embout (14), ledit dispositif d'indexation bloquant de façon réversible l'articulation (16) dans, au moins, une des positions parmi une première position de déblocage dans laquelle le corps (12) de l'outil (10) agit en bras de levier pour permettre à l'utilisateur de débloquer le bouchon (1 ) et ladite position de dévissage.  1. Tool (10) for operating a plug (1) for emptying a heat engine, the tool being of the type comprising an elongated body (12) having a free end forming a handle (18); a tip (14) connected to the body and provided with a working end (20), in particular a male square, the working end being adapted to cooperate by direct or indirect coupling with said plug; a receptacle (28) for receiving used oil from the engine, said receptacle being disposed between the working end (20) and the handle (18); the body (12) and the working end (20) being arranged relative to one another in at least one unscrewing position in which the tool (10) is adapted for the user to unscrew the plug (1) when the latter has been previously unlocked, characterized in that a hinge (16) provided with an indexing device (42a, 42b, 42c, 44, 55, 56) connects the body (12) and the tip (14), said indexing device reversibly locking the hinge (16) in at least one of a first unlocking position in which the body (12) of the tool (10) ) acts as a lever arm to allow the user to unlock the plug (1) and said unscrewing position.
2. Outil selon la revendication 1 , caractérisé en ce que le corps (12) et l'embout (14) s'étendent respectivement suivant un premier axe longitudinal (X-X) et un deuxième axe longitudinal (Y-Y), et en ce que, dans la position de déblocage, les premier (X-X) et deuxième (Y-Y) axes sont disposés sensiblement perpendiculairement, et, dans la position de dévissage, les premier (X-X) et deuxième (Y-Y) axes sont disposés sensiblement parallèlement, en particulier sensiblement alignés.  2. Tool according to claim 1, characterized in that the body (12) and the tip (14) extend respectively along a first longitudinal axis (XX) and a second longitudinal axis (YY), and in that, in the unlocking position, the first (XX) and second (YY) axes are arranged substantially perpendicularly, and, in the unscrewing position, the first (XX) and second (YY) axes are arranged substantially parallel, in particular substantially aligned .
3. Outil selon la revendication 1 ou 2, caractérisé en ce que le dispositif d'indexation (42a, 42b, 42c, 44, 55, 56) bloque de façon réversible l'articulation (16) dans une deuxième position de déblocage du bouchon (1 ) dans laquelle le corps (12) de l'outil (10) agit en bras de levier pour permettre à l'utilisateur de débloquer le bouchon (1 ), la deuxième position étant orientée sensiblement à l'opposé par rapport à la première position de déblocage.  3. Tool according to claim 1 or 2, characterized in that the indexing device (42a, 42b, 42c, 44, 55, 56) reversibly locks the hinge (16) in a second unlocking position of the plug (1) wherein the body (12) of the tool (10) acts as a lever arm to allow the user to unlock the plug (1), the second position being oriented substantially opposite to the first unlocking position.
4. Outil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le corps (12) comprend une chape (30) recevant un axe (50) de pivot et coiffant une partie d'attachement (38) de l'embout (14) mobile en pivot par rapport audit corps, l'axe (50) de la chape (30) recevant une clavette (56) coopérant avec une rainure de guidage (44) réalisée dans la chape et une pluralité de rainures d'indexation (42a, 42b, 42c) réalisées dans la partie d'attachement (38).  4. Tool according to any one of claims 1 to 3, characterized in that the body (12) comprises a yoke (30) receiving a pivot axis (50) and capping an attachment portion (38) of the tip (14) pivotally movable relative to said body, the axis (50) of the yoke (30) receiving a key (56) cooperating with a guide groove (44) formed in the yoke and a plurality of grooves indexing (42a, 42b, 42c) performed in the attachment portion (38).
5. Outil selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif d'indexation (42a, 42b, 42c, 44, 55, 56) comporte un bouton d'activation (52) destiné à libérer volontairement le blocage, et en ce qu'un premier moyen de sollicitation (54) tend à positionner ledit dispositif d'indexation en position de repos correspondant au blocage de l'articulation (16). 5. Tool according to any one of claims 1 to 4, characterized in that the indexing device (42a, 42b, 42c, 44, 55, 56) comprises an activation button (52) intended to voluntarily release the blocking, and in that a first solicitation means (54) tends to position said indexing device in the rest position corresponding to the blocking of the articulation (16).
6. Outil selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'embout (14) comprend un fût (34) de forme allongée, de telle manière que, dans au moins la première position de déblocage, le corps (12) est disposé à distance du moteur, sensiblement parallèlement audit moteur.  6. Tool according to any one of claims 1 to 5, characterized in that the tip (14) comprises a shaft (34) of elongate shape, such that in at least the first unlocking position, the body (12) is arranged at a distance from the motor, substantially parallel to said motor.
7. Outil selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le réceptacle (28) comprend un rebord (92) de forme générale circulaire muni d'au moins un méplat (100a ; 100b ; 100c), de préférence de trois méplats disposés à intervalles réguliers angulairement.  7. Tool according to any one of claims 1 to 6, characterized in that the receptacle (28) comprises a rim (92) of generally circular shape provided with at least one flat (100a; 100b; 100c), preferably three flats arranged at regular intervals angularly.
8. Outil selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le réceptacle (28) est disposé du côté de l'embout (14) par rapport à ladite articulation.  8. Tool according to any one of claims 1 to 7, characterized in that the receptacle (28) is disposed on the side of the tip (14) relative to said hinge.
9. Outil selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le réceptacle (28) est relié à l'embout (14) de manière amovible.  9. Tool according to any one of claims 1 to 8, characterized in that the receptacle (28) is connected to the tip (14) removably.
10. Outil selon la revendication 9, caractérisé en ce qu'un dispositif de verrouillage (98a, 98b), en particulier un dispositif à baïonnette, immobilise le réceptacle (28) par rapport à l'embout (14). 10. Tool according to claim 9, characterized in that a locking device (98a, 98b), in particular a bayonet device, immobilizes the receptacle (28) relative to the tip (14).
1 1 . Outil selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'extrémité de travail (20) est accouplée indirectement au bouchon (1 ) par l'intermédiaire d'une douille (22) et en ce que l'embout (14) reçoit extérieurement un fourreau d'éjection (26) de la douille (22) reliée à l'extrémité de travail (20) dudit embout.  1 1. Tool according to any one of claims 1 to 10, characterized in that the working end (20) is coupled indirectly to the plug (1) via a bushing (22) and in that the endpiece (14) externally receives an ejection sleeve (26) of the sleeve (22) connected to the working end (20) of said tip.
12. Outil selon la revendication 1 1 , caractérisé en ce que le fourreau d'éjection (26) comprend un manchon (60) entourant l'embout (14) et monté coulissant par rapport à celui-ci, ledit fourreau étant mobile entre une position de repos dans laquelle il affleure la douille (22) ou dans laquelle il est axialement en retrait par rapport à ladite douille, et une position d'éjection dans laquelle le déplacement axial dudit fourreau par rapport à l'embout en direction de l'extrémité de travail (20) de ce dernier mène le fourreau (26) au contact de la douille (22) et désaccouple celle-ci de ladite extrémité de travail.  12. Tool according to claim 1 1, characterized in that the ejection sleeve (26) comprises a sleeve (60) surrounding the tip (14) and slidably mounted relative thereto, said sleeve being movable between a rest position in which it is flush with the sleeve (22) or in which it is axially recessed relative to said sleeve, and an ejection position in which the axial displacement of said sleeve relative to the nozzle towards the the working end (20) of the latter leads the sheath (26) in contact with the sleeve (22) and uncouples it from said working end.
13. Outil selon la revendication 12, caractérisé en ce qu'un deuxième moyen de sollicitation (74), en particulier un ressort de compression, agit sur le manchon (60) et tend à disposer le fourreau (26) dans sa position de repos.  13. Tool according to claim 12, characterized in that a second biasing means (74), in particular a compression spring, acts on the sleeve (60) and tends to arrange the sleeve (26) in its rest position. .
EP12735486.8A 2011-06-22 2012-06-22 Improved tool for controlling a drain plug of a technical motor Active EP2723533B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1101921A FR2976837B3 (en) 2011-06-22 2011-06-22 IMPROVED TOOL FOR MANEUVERING A DRAIN CAP OF A THERMAL MOTOR.
PCT/EP2012/062169 WO2012175727A1 (en) 2011-06-22 2012-06-22 Improved tool for controlling a drain plug of a technical motor

Publications (2)

Publication Number Publication Date
EP2723533A1 true EP2723533A1 (en) 2014-04-30
EP2723533B1 EP2723533B1 (en) 2016-04-06

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EP12735486.8A Active EP2723533B1 (en) 2011-06-22 2012-06-22 Improved tool for controlling a drain plug of a technical motor

Country Status (4)

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EP (1) EP2723533B1 (en)
ES (1) ES2570186T3 (en)
FR (1) FR2976837B3 (en)
WO (1) WO2012175727A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10737924B1 (en) 2017-09-26 2020-08-11 Robert Crowell Manway cover tool
CN107813252B (en) * 2017-11-10 2024-01-19 河南森源电气股份有限公司 Operating mechanism installation fixing device and operating mechanism auxiliary installation structure
CN112091873B (en) * 2018-02-22 2022-10-04 大畏机床(江苏)有限公司 Crank pin screw disassembling tool
DE102022119126A1 (en) 2022-07-29 2024-02-01 Friedo Stricker Oil drain device

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Publication number Priority date Publication date Assignee Title
US3010346A (en) * 1960-01-11 1961-11-28 K D Mfg Co Petcock drain tool, non-flexible shaft
FR2498107A1 (en) 1981-01-22 1982-07-23 Letallec Francois Spanner for vehicle oil sump drain plug - has tube of which head locates drive bit with shaft passing through cup to catch oil spill
FR2584967B3 (en) 1985-07-22 1987-11-13 Sanna Serge HAND TOOL FOR CLEANING A DRAIN PLUG FROM AN OIL PAN
FR2677633B1 (en) 1991-06-14 1996-08-14 Bernard Cassan DRAIN FUNNEL FOR HEAT ENGINES AND ITS ADAPTATION ACCESSORY FOR SERVICE STATION.
DE10234868A1 (en) * 2002-07-31 2004-02-12 Manfred Koching Oil sump drain for motor vehicle has funnel with fastener socket integrally mounted in top of funnel

Non-Patent Citations (1)

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Title
See references of WO2012175727A1 *

Also Published As

Publication number Publication date
WO2012175727A1 (en) 2012-12-27
FR2976837A3 (en) 2012-12-28
FR2976837B3 (en) 2014-01-03
ES2570186T3 (en) 2016-05-17
EP2723533B1 (en) 2016-04-06

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