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EP1122432A1 - Quick connector for a tyre pump and bicycle pump with this connector - Google Patents

Quick connector for a tyre pump and bicycle pump with this connector Download PDF

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Publication number
EP1122432A1
EP1122432A1 EP01400229A EP01400229A EP1122432A1 EP 1122432 A1 EP1122432 A1 EP 1122432A1 EP 01400229 A EP01400229 A EP 01400229A EP 01400229 A EP01400229 A EP 01400229A EP 1122432 A1 EP1122432 A1 EP 1122432A1
Authority
EP
European Patent Office
Prior art keywords
cap
cylindrical
valve
opening
cylindrical housing
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.)
Withdrawn
Application number
EP01400229A
Other languages
German (de)
French (fr)
Inventor
Christophe Fletout
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.)
Zefal
Original Assignee
Zefal
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 Zefal filed Critical Zefal
Publication of EP1122432A1 publication Critical patent/EP1122432A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles

Definitions

  • the present invention relates, in general, to pumps for bicycle, and in particular a quick coupling of such a pump, intended to be temporarily adapted on a valve for inflating a tire.
  • a connector comprising a body provided with a cylindrical housing having at one end an opening opening to the outside and containing watertight connection means establishing the connection between said valve engaged in said opening and the source of fluid to which said connector is connected, and clamping means said connection means on said valve.
  • This cam and lever mechanism is adapted to cause displacement along the axis of the cylindrical housing of the body, in said housing, so as to compress a part of the sealed connection means against a cover annular screwed on said housing so as to cover said opening of the housing cylindrical.
  • the compression of the part of said connection means tight against this annular cover makes it possible to tighten said means of tight connection against a valve introduced into said opening of the cylindrical housing via the opening of the annular cover.
  • the cam and lever mechanism is arranged so that the lever is capable of tilting so as to rotate the cam around an axis generally extending transversely to the axis of the housing cylindrical of the body of said fitting, the cam pivoting causing the displacement of said body of the connector along the axis of its cylindrical housing.
  • the present invention provides a new quick coupling as defined in the introduction, and characterized in that said clamping means comprise a cap pierced in its center with a opening and covering said end opening of the cylindrical housing of the body, said cap comprising mounting means cooperating with corresponding mounting means provided at said opening end of the cylindrical housing, so that the attachment of the cap on the body is achieved by bayonet mounting and tightening the cap on the connection means is achieved by a surface cooperation of cam following a pivoting movement of the cap around the axis of the cylindrical housing.
  • the cap pivots essentially around the axis of the cylindrical housing to tighten the means tight connection against a valve inserted in the opening of the cylindrical housing of the body via the central opening of said cap, it has reduced dimensions and can blend into the profile of the fitting so as to do not modify its external appearance.
  • such a cap is simple to make and easily mounted. and removable on the body of the quick connector, which is particularly advantageous for extracting the sealed connection means from the housing cylindrical body of the fitting, in order to reverse their position for their adaptation to another type of valve.
  • the invention also provides a bicycle hand pump.
  • a bicycle hand pump comprising a handle pump body, a rod integral with the handle and carrying at one end a piston adapted to slide in the pump body, said pump body being connected by tubing to a quick connector such as cited above.
  • a hand pump for bicycle 1 of the mini-pump type with telescopic structure comprising, in known manner, a substantially cylindrical pump body 2 of revolution with handle 3, said handle 3 carrying a rod (not shown) engaged in the inner chamber of the pump body 2 and carrying a piston suitable for sliding in the pump body.
  • Pump body 2 is connected by a tube 4 (see more particularly Figures 10 and 11) to a body 20 a quick connector intended to be temporarily adapted to a valve for inflation of a tire, in particular of an inner tube of a tire bicycle.
  • connection between the body 20 of the quick coupling and the body 2 of the bicycle 1 is advantageously produced by means of a flexible part 10.
  • This flexible part 10 can be made of rubber or a flexible thermoplastic material such as an elastomer or neoprene.
  • one of the portions 11 of the flexible part 10 has a surface external which is connected continuously to the external surface of the body 20 of the connector fast.
  • the body 20 here has a shape complementary to the portion of ellipsoid 11 of flexible part 10, with a lateral external surface rounded which connects to a flat upper external surface forming a continuity of external surface with that of the portion of ellipsoid 11 of the part flexible 10.
  • the body 20 constitutes an extension of the general shape in diabolo of the flexible part 10.
  • the body 20 of the quick coupling simply presents a tubular shape.
  • the part flexible 10 being pierced with an axial fluid circulation channel 4 forming the connecting pipe of the interior chamber of the pump body 2 to quick coupling, it comprises at each end of said channel 4 an end piece 16, 17 made of rigid material for its connection on the one hand to an internal channel of the quick coupling starting obliquely to the axis of the axial channel 4 and other leaves to an interior chamber, not shown, of the pump body.
  • the end piece 17 located on the side of the body 20 can be a simple striated sleeve for its attachment to the ellipsoid portion 11 of the flexible part 10.
  • the nozzle 16 is a sleeve externally threaded for screw mounting of the pump body bicycle.
  • This threaded end piece 16 has at the rear part an annular groove for its connection with the ellipsoid portion 12 of the flexible part 10.
  • Said flexible part 10 can be produced by molding, and more particularly can be molded onto the ends of rigid material 16, 17.
  • the flexible part 10 comprises on at least part of its surface external streaks 14, 15 giving it even more flexibility. These streaks are, by series, parallel to each other, and have a depth adapted to the flexibility that we want to give to this flexible part.
  • the body 20 of the quick coupling is provided with a housing cylindrical 21, here cylindrical of revolution around an axis X.
  • This housing cylindrical 21 has, at one end, a circular opening 22 opening outside and in which is intended to engage the tire valve.
  • the cylindrical housing 21 is blind and comprises in its bottom a centering stud 21a in the shape of a cross (see more particularly Figures 9, 10 and 11), for the axial positioning of a valve box 30 as will be described in more detail later.
  • the cylindrical housing 21 has in its side wall an orifice for communication with a channel circulation of fluid extending obliquely to the X axis and connecting to the axial fluid circulation channel 4 of the flexible part 10 forming the connection between the body 20 of the quick coupling and the interior chamber of the pump body 2.
  • said means sealing connections are suitable for two types of valve, the type SCHRADER and the PRESTA type.
  • These sealed connection means more particularly a valve box 30 extending along the axis X of the housing cylindrical 21 and fitted at its two ends with two sealing rings 31, 32, elastically deformable of different shapes.
  • the ring 31 has a substantially bowl shape with a bottom thick fixed by snap-fastening on an axial protuberance 40 closing the end of the valve box 30 and more particularly sealing the end of a chamber containing a valve ball 33 adapted to cooperate with a seat valve, the axial protuberance 40 being traversed by an axial air passage 41.
  • the valve box 30 has a internal space open to its end equipped with the elastic ring 32 of general tubular shape centered on the X axis and projecting from the body 20 of the fitting through the opening 22 of the cylindrical housing 21.
  • the open internal space of the valve box 30 communicates by lateral openings 30a provided in said piston with an annular space 21 ' formed between the wall of the cylindrical housing 21 and the valve box 30, said annular space 21 'being connected via the communication orifice to the channel of fluid circulation 4.
  • the axial protuberance 40 carried by the valve box 30 is positioned against the pin 21a provided in the bottom of the cylindrical housing 21 so as to center the whole of the box valve 30 and sealing rings 31 and 32 in the cylindrical housing 21 along the axis X of the cylindrical housing 21.
  • the quick coupling comprises means for clamping said means of tight connection explained above, and more particularly of one of the sealing rings 31, 32 carried by the valve box 30 on a valve introduced into the opening 22 of the cylindrical housing 21 of the body 20 of said connection.
  • Said clamping means comprise a cap 50 comprising a bottom 51 pierced in its center with an opening 52 covering said opening end 22 of the cylindrical housing 21 of the body 20 of the quick coupling.
  • the body 20 of the quick coupling comprises a neck tubular 25 receiving the cap 50 so that its bottom 51 comes fit on the peripheral edge of the tubular neck 25 with its central opening 52 centered on the axis X of the cylindrical housing 21 of the body 20 of the quick coupling.
  • the cap 50 has a cylindrical skirt 53 adapted to cover the cylindrical outer face 26 of the neck 25.
  • the cap 50 comprises mounting means cooperating with corresponding mounting means provided at the end opening 22 of the cylindrical housing 21, so that the attachment of the cap 50 to the body 20 of the quick coupling is achieved by a bayonet mounting and tightening of the cap 50 on the connection means, and more particularly on one of the sealing rings 31, 32 carried by the valve box 30 of the connection means, is produced by a cam surface cooperation 24 a , following a pivoting movement of the cap 50 around the axis X of the cylindrical housing.
  • the cap 50 has two functions here. It closes the opening 22 of the cylindrical housing 21 to avoid an untimely exit of the means of waterproof connection. Its bayonet mounting on the neck 25 of the body 20 of the fitting allows it to be easily assembled and disassembled in order to be able to extract said connection means (the valve box 30 fitted with rings sealing 31, 32) to reverse the position in said cylindrical housing with a view to their adaptation to another type of valve.
  • the cap 50 allows also to tighten the tight connection means on a valve introduced into the opening 22 of the cylindrical housing of the body 20.
  • the means for mounting the cap 50 are provided on the internal face 53a of the cylindrical skirt 53 and the corresponding mounting means 23, 24 provided at level of the opening 22 of the cylindrical housing 21 are positioned on the face cylindrical outer 26 of the tubular neck 25.
  • Said means for mounting the cap 50 here comprise two pins 54, 55 positioned diametrically opposite on the internal face 53a of the cylindrical skirt 53 of the cap 50, so that they form a projection radial of this face, and are located near the free edge 53b of said skirt cylindrical 53 of the cap.
  • the corresponding mounting means provided on the external face cylindrical 26 of the tubular neck 25 of the body of the quick coupling, comprise two diametrically opposite paths, each path receiving a stud 54, 55 and comprising a first bent portion 23 for engaging said stud for the bayonet mounting of the cap 50 on the tubular neck 25 of the body 20 of the quick coupling, and a second part 24 constituted by a ramp provided with said cam surface 24a for tightening the cap 50 on said means waterproof connection and in particular on a sealing ring 31 or 32 carried by the valve box 30.
  • Each path receiving a nipple comes from formation with the tubular neck 25 of body 20.
  • each path has a portion extending parallel to the axis X of the cylindrical housing then a part extending substantially transversely, that is to say tangentially to the external face cylindrical 26 of the tubular neck 25.
  • Each bent engagement portion 23 of the path formed on the cylindrical external face of the tubular neck 25 is delimited by an unreferenced stop whose external surface forms a guide ramp of the nipple engaged in this bent portion of engagement so as to obtain a elastic bayonet mounting of the cap 50 on the tubular neck 25 of the body 20 of the quick coupling.
  • This bayonet mount simply allows secure the cap 50 to the body 20 of the quick coupling and avoid an exit untimely valve box 30 provided with housing sealing rings cylindrical interior 21 of the body 20 of the quick coupling.
  • part 24 of the path formed by a ramp and provided with said cam surface 24 a it also includes in its bottom a recess 24 b against which the stud engaged in the ramp is blocked to allow the locking of the cap 50 in the clamped position on the tubular neck 25 of the body 20 of the quick coupling.
  • the pins 54, 55 of the cap 50 advantageously come from cap formation 50.
  • the cap 50 comprises an operating lever 60 for driving it according to the pivoting movement around the axis X of the cylindrical housing 21 for tightening on a sealing ring 31 or 32 carried by the valve box 30 constituting said sealed connection means.
  • This operating lever 60 extends in the plane of the bottom 51 of the cap 50 and has two lateral faces 61, 62 which are tangentially connected to the external face 53 c of the cylindrical skirt 53 of the cap 50.
  • the lever 60 has an external lateral face 61 whose shape follows the contours external of the body 20 of the fitting and of the associated portion of ellipsoid 11 of the flexible part 10, so that when the cap is in the tightened position on the tubular neck 25 of the body 20 of the quick coupling, it melts in the shape general of the quick coupling associated with the flexible part 10 for connecting the quick connection to the bicycle pump body 1.
  • the other side face 62 of the lever 60 in addition to the fact that it tangentially connects to the external surface 53c of the cylindrical skirt 53 of said cap, it has here a straight profile.
  • the lever may have at one end a flat to allow better support of the thumb on said lever so as to actuate the latter.
  • the right side face 62 lever 60 forms a thumb support surface of a lever actuator maneuver.
  • the cap 50 has, as a variant, at its bottom 51 days 51 b , 51 a positioned on either side of its central opening 52 opening out. on the one hand towards the outside and on the other hand towards the inside on the side of the pins 54, 55 carried by the internal face of the cylindrical skirt 53 of said cap.
  • the cap in operating the lever so as to rotate the cap 50 around the X axis of the cylindrical housing 21, the cap is lowered axially by cooperation of the pins 54, 55 which it carries with the cam surfaces 24 of the ramps provided on the external face 26 of the tubular neck 25 of the body 20 of the quick coupling, so as to compress the sealing ring, here the ring sealing 32, located between the tubular neck 25 and the inner face of the bottom 51 of the cap 50, the free edge of the sealing ring 32 then tightening the valve (not shown here) introduced into the opening 22 of the cylindrical housing 21, via the opening 52 of the cap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The quick connector comprises a body (20) with a cylindrical housing (21) having an opening (22) at one end emerging on the outside and containing a connection seal. Clamping of the connector comprises a cap (50) having mountings (54,55) which engage corresponding mountings (23,24) in the opening outlet end. The fixing of the cap on the body is made by a bayonet fitting and its clamping is made by engagement of a cam surface (24a) which pivots about the cylindrical housing axis.

Description

La présente invention concerne, de manière générale, les pompes de bicyclette, et en particulier un raccord rapide d'une telle pompe, destiné à être adapté temporairement sur une valve pour le gonflage d'un pneumatique.The present invention relates, in general, to pumps for bicycle, and in particular a quick coupling of such a pump, intended to be temporarily adapted on a valve for inflating a tire.

Plus particulièrement, elle concerne un raccord comprenant un corps pourvu d'un logement cylindrique présentant à une extrémité une ouverture débouchant à l'extérieur et contenant des moyens de raccordement étanche établissant la liaison entre ladite valve engagée dans ladite ouverture et la source de fluide auxquels est raccordé ledit raccord, et des moyens de serrage desdits moyens de raccordement sur ladite valve.More particularly, it relates to a connector comprising a body provided with a cylindrical housing having at one end an opening opening to the outside and containing watertight connection means establishing the connection between said valve engaged in said opening and the source of fluid to which said connector is connected, and clamping means said connection means on said valve.

On connaít déjà du brevet français N° 94.12980 appartenant à la Demanderesse, un raccord rapide du type précité, dans lequel les moyens de serrage comprennent un mécanisme à came et à levier situé en dessous d'un boítier contenant ledit corps du raccord pourvu du logement cylindrique logeant les moyens de raccordement étanche.We already know the French patent N ° 94.12980 belonging to the Applicant, a quick coupling of the aforementioned type, in which the means of clamping include a cam and lever mechanism located below a housing containing said body of the connector provided with the cylindrical housing accommodating the sealed connection means.

Ce mécanisme à came et à levier est adapté à provoquer un déplacement selon l'axe du logement cylindrique du corps, dans ledit boítier, de façon à comprimer une partie des moyens de raccordement étanche contre un couvercle annulaire vissé sur ledit boítier de façon à recouvrir ladite ouverture du logement cylindrique. La compression de la partie desdits moyens de raccordement étanche contre ce couvercle annulaire permet de serrer lesdits moyens de raccordement étanche contre une valve introduite dans ladite ouverture du logement cylindrique via l'ouverture du couvercle annulaire.This cam and lever mechanism is adapted to cause displacement along the axis of the cylindrical housing of the body, in said housing, so as to compress a part of the sealed connection means against a cover annular screwed on said housing so as to cover said opening of the housing cylindrical. The compression of the part of said connection means tight against this annular cover makes it possible to tighten said means of tight connection against a valve introduced into said opening of the cylindrical housing via the opening of the annular cover.

Selon ce document, le mécanisme à came et à levier est agencé de sorte que le levier est apte à basculer de façon à entraíner en rotation la came autour d'un axe s'étendant généralement transversalement à l'axe du logement cylindrique du corps dudit raccord, la came en pivotant provoquant le déplacement dudit corps du raccord selon l'axe de son logement cylindrique.According to this document, the cam and lever mechanism is arranged so that the lever is capable of tilting so as to rotate the cam around an axis generally extending transversely to the axis of the housing cylindrical of the body of said fitting, the cam pivoting causing the displacement of said body of the connector along the axis of its cylindrical housing.

L'inconvénient principal d'un tel raccord rapide est que les moyens de serrage des moyens de raccordement étanche sur la valve, sont relativement complexes et encombrants à l'extérieur du raccord.The main disadvantage of such a quick coupling is that the means of tightness of the tight connection means on the valve, are relatively complex and bulky outside the fitting.

Afin de remédier à cet inconvénient, la présente invention propose un nouveau raccord rapide tel que défini en introduction, et caractérisé en ce que lesdits moyens de serrage comprennent un capuchon percé en son centre d'une ouverture et recouvrant ladite ouverture d'extrémité du logement cylindrique du corps, ledit capuchon comprenant des moyens de montage coopérant avec des moyens de montage correspondants prévus au niveau de ladite ouverture d'extrémité du logement cylindrique, de sorte que la solidarisation du capuchon sur le corps est réalisée par un montage à baïonnette et le serrage du capuchon sur les moyens de raccordement est réalisé par une coopération de surface de came suivant un mouvement de pivotement du capuchon autour de l'axe du logement cylindrique.In order to remedy this drawback, the present invention provides a new quick coupling as defined in the introduction, and characterized in that said clamping means comprise a cap pierced in its center with a opening and covering said end opening of the cylindrical housing of the body, said cap comprising mounting means cooperating with corresponding mounting means provided at said opening end of the cylindrical housing, so that the attachment of the cap on the body is achieved by bayonet mounting and tightening the cap on the connection means is achieved by a surface cooperation of cam following a pivoting movement of the cap around the axis of the cylindrical housing.

Avantageusement, selon l'invention, du fait que le capuchon pivote essentiellement autour de l'axe du logement cylindrique pour serrer les moyens de raccordement étanche contre une valve introduite dans l'ouverture du logement cylindrique du corps via l'ouverture centrale dudit capuchon, il présente un encombrement réduit et peut se fondre dans le profil du raccord de façon à ne pas en modifier son aspect externe.Advantageously, according to the invention, because the cap pivots essentially around the axis of the cylindrical housing to tighten the means tight connection against a valve inserted in the opening of the cylindrical housing of the body via the central opening of said cap, it has reduced dimensions and can blend into the profile of the fitting so as to do not modify its external appearance.

De plus, un tel capuchon est simple de réalisation et facilement montable et démontable sur le corps du raccord rapide, ce qui est particulièrement avantageux pour extraire les moyens de raccordement étanche du logement cylindrique du corps du raccord, afin d'inverser leur position en vue de leur adaptation à un autre type de valve.In addition, such a cap is simple to make and easily mounted. and removable on the body of the quick connector, which is particularly advantageous for extracting the sealed connection means from the housing cylindrical body of the fitting, in order to reverse their position for their adaptation to another type of valve.

D'autres caractéristiques avantageuses et non limitatives du raccord rapide selon l'invention sont les suivantes :

  • le corps comporte un corps tubulaire recevant le capuchon qui présente une jupe cylindrique adaptée à recouvrir la face externe cylindrique dudit col, lesdits moyens de montage du capuchon étant prévus sur la face interne de ladite jupe cylindrique, et lesdits moyens de montage correspondants prévus au niveau de l'ouverture d'extrémité dudit logement cylindrique étant positionnés sur la face externe cylindrique du col,
  • lesdits moyens de montage du capuchon comprennent au moins un téton faisant saillie de la face interne de la jupe cylindrique du capuchon et situé à proximité du bord libre de la jupe, et lesdits moyens de montage correspondants prévus sur la face externe cylindrique du col tubulaire comprennent au moins un chemin recevant ledit téton comportant une première partie coudée d'engagement dudit téton pour le montage à baïonnette du capuchon sur le col et une seconde partie constituée par une rampe pourvue de ladite surface de came pour le serrage du capuchon sur lesdits moyens de raccordement étanche,
  • ladite rampe pourvue de la surface de came comporte dans son fond un décrochement pour le verrouillage du capuchon en position serrée sur le col tubulaire dudit corps,
  • le chemin pour le téton vient de formation avec le col tubulaire dudit corps,
  • le téton vient également de formation avec le capuchon,
  • le capuchon comporte, selon une version préférée du raccord, deux tétons positionnés de manière diamétralement opposée et aptes à coopérer avec deux chemins prévus sur la face externe du col tubulaire de manière diamétralement opposée,
  • le capuchon comporte un levier de manoeuvre pour l'entraínement de celui-ci selon le mouvement de pivotement autour de l'axe du logement cylindrique en vue de son serrage sur lesdits moyens de raccordement, ledit levier de manoeuvre s'étendant dans le plan du fond du capuchon et présentant deux faces latérales se raccordant tangentiellement à la face externe de la jupe cylindrique dudit capuchon, et
  • lesdits moyens de raccordement étanche sont adaptés à deux types de valve, le type SCHRADER et le type PRESTA, ils sont aptes à cet effet à être positionnés dans ledit logement cylindrique selon deux positions inversées, et comprennent une boíte à clapet portant à une extrémité une protubérance axiale destinée à coopérer avec une valve de type SCHRADER, et équipée à ses deux extrémités de deux bagues d'étanchéité, à savoir, d'un côté, une bague d'étanchéité adaptée à coiffer une valve de type SCHRADER et présentant un fond traversé par la protubérance axiale, et d'un autre côté, une bague d'étanchéité adaptée à coiffer une valve de type PRESTA, ledit capuchon étant apte à serrer chacune des deux bagues d'étanchéité contre la valve engagée dans ladite ouverture d'extrémité du logement cylindrique dudit corps.
Other advantageous and non-limiting characteristics of the quick coupling according to the invention are the following:
  • the body comprises a tubular body receiving the cap which has a cylindrical skirt adapted to cover the cylindrical external face of said neck, said cap mounting means being provided on the internal face of said cylindrical skirt, and said corresponding mounting means provided at the end opening of said cylindrical housing being positioned on the cylindrical external face of the neck,
  • said cap mounting means comprise at least one stud projecting from the internal face of the cylindrical skirt of the cap and located near the free edge of the skirt, and said corresponding mounting means provided on the cylindrical external face of the tubular neck at least one path receiving said stud comprising a first angled engagement portion of said stud for bayonet mounting of the cap on the neck and a second portion consisting of a ramp provided with said cam surface for tightening the cap on said means tight connection,
  • said ramp provided with the cam surface comprises in its bottom a recess for locking the cap in the tight position on the tubular neck of said body,
  • the path for the nipple comes from formation with the tubular neck of said body,
  • the nipple also comes from formation with the cap,
  • the cap comprises, according to a preferred version of the connector, two studs positioned in a diametrically opposite manner and capable of cooperating with two paths provided on the external face of the tubular neck in a diametrically opposite manner,
  • the cap comprises an operating lever for driving it according to the pivoting movement about the axis of the cylindrical housing for tightening on said connection means, said operating lever extending in the plane of the bottom of the cap and having two lateral faces tangentially connecting to the external face of the cylindrical skirt of said cap, and
  • said sealed connection means are adapted to two types of valve, the SCHRADER type and the PRESTA type, they are suitable for this purpose to be positioned in said cylindrical housing in two inverted positions, and comprise a valve box carrying at one end a axial protuberance intended to cooperate with a valve of SCHRADER type, and equipped at its two ends with two sealing rings, namely, on one side, a sealing ring adapted to cover a valve of SCHRADER type and having a bottom crossed by the axial protuberance, and on the other hand, a sealing ring adapted to cover a PRESTA type valve, said cap being able to tighten each of the two sealing rings against the valve engaged in said end opening of the cylindrical housing of said body.

L'invention propose également une pompe à main de bicyclette comprenant un corps de pompe à poignée, une tige solidaire de la poignée et portant à une extrémité un piston adapté à coulisser dans le corps de pompe, ledit corps de pompe étant raccordé par une tubulure à un raccord rapide tel que précité.The invention also provides a bicycle hand pump. comprising a handle pump body, a rod integral with the handle and carrying at one end a piston adapted to slide in the pump body, said pump body being connected by tubing to a quick connector such as cited above.

La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The following description with reference to the accompanying drawings, given as non-limiting examples, will make it clear what the invention consists of and how it can be achieved.

Sur les dessins annexés :

  • les figures 1 et 2 sont des vues de côté et de dessus d'une pompe à main de bicyclette selon l'invention ;
  • la figure 3 est une vue en perspective de trois quarts du raccord rapide de la pompe représentée sur la figure 1, avec un arrachement partiel au niveau du capuchon du raccord de pompe ;
  • la figure 4 est une vue de dessous du capuchon du raccord de pompe ;
  • la figure 5 est une vue en coupe selon le plan B-B du capuchon de la figure 4 ;
  • la figure 6 est une vue de côté du raccord de pompe de la figure 1 ;
  • la figure 7 est une vue selon la flèche A du raccord de la figure 6 ;
  • la figure 8 est une vue de détail d'une partie de la surface externe du col du raccord représenté sur la figure 6 ;
  • la figure 9 est une vue de dessus du raccord de la figure 7 ;
  • la figure 10 est une vue en coupe axiale du raccord de la pompe représentée sur la figure 1, avec le capuchon du raccord en position libre sur le col du raccord ; et
  • la figure 11 est une vue en coupe axiale du raccord de la pompe représentée sur la figure 1, avec le capuchon du raccord serré sur le col dudit raccord.
In the accompanying drawings:
  • Figures 1 and 2 are side and top views of a bicycle hand pump according to the invention;
  • Figure 3 is a perspective view of three quarters of the quick connector of the pump shown in Figure 1, with a partial cutaway at the cap of the pump connector;
  • Figure 4 is a bottom view of the cap of the pump fitting;
  • Figure 5 is a sectional view along the plane BB of the cap of Figure 4;
  • Figure 6 is a side view of the pump connector of Figure 1;
  • Figure 7 is a view along arrow A of the connector of Figure 6;
  • FIG. 8 is a detailed view of part of the external surface of the neck of the connector shown in FIG. 6;
  • Figure 9 is a top view of the connector of Figure 7;
  • Figure 10 is an axial sectional view of the pump fitting shown in Figure 1, with the fitting cap in the free position on the neck of the fitting; and
  • Figure 11 is an axial sectional view of the pump fitting shown in Figure 1, with the fitting cap tightened on the neck of said fitting.

Sur les figures 1 et 2 on a représenté vue de côté et vue de dessus, une pompe à main pour bicyclette 1 du type mini-pompe à structure télescopique, comportant, de manière connue, un corps de pompe 2 sensiblement cylindrique de révolution à poignée 3, ladite poignée 3 portant une tige (non représentée) engagée dans la chambre intérieure du corps de pompe 2 et portant un piston adapté à coulisser dans le corps de pompe. Le corps de pompe 2 est raccordé par une tubulure 4 (voir plus particulièrement les figures 10 et 11) à un corps 20 d'un raccord rapide destiné à être adapté temporairement sur une valve pour le gonflage d'un pneumatique, en particulier d'une chambre à air d'un pneu de bicyclette.In Figures 1 and 2 there is shown side view and top view, a hand pump for bicycle 1 of the mini-pump type with telescopic structure, comprising, in known manner, a substantially cylindrical pump body 2 of revolution with handle 3, said handle 3 carrying a rod (not shown) engaged in the inner chamber of the pump body 2 and carrying a piston suitable for sliding in the pump body. Pump body 2 is connected by a tube 4 (see more particularly Figures 10 and 11) to a body 20 a quick connector intended to be temporarily adapted to a valve for inflation of a tire, in particular of an inner tube of a tire bicycle.

Comme le montrent plus particulièrement les figures 3, 10 et 11, le raccordement entre le corps 20 du raccord rapide et le corps 2 de la pompe de bicyclette 1 est réalisé avantageusement par l'intermédiaire d'une partie flexible 10.As shown more particularly in Figures 3, 10 and 11, the connection between the body 20 of the quick coupling and the body 2 of the bicycle 1 is advantageously produced by means of a flexible part 10.

Cette partie flexible 10 peut être réalisée en caoutchouc ou en un matériau thermoplastique souple tel qu'un élastomère ou du néoprène.This flexible part 10 can be made of rubber or a flexible thermoplastic material such as an elastomer or neoprene.

Elle présente ici généralement la forme d'un diabolo avec deux portions d'ellipsoïde 11, 12 raccordées par leur sommet pour former une partie centrale 13 de la partie flexible 10 de plus faible section.Here it generally has the shape of a diabolo with two portions of ellipsoid 11, 12 connected by their top to form a central part 13 of the flexible part 10 of smaller section.

En outre, une des portions 11 de la partie flexible 10 présente une surface externe qui se raccorde continûment à la surface externe du corps 20 du raccord rapide.In addition, one of the portions 11 of the flexible part 10 has a surface external which is connected continuously to the external surface of the body 20 of the connector fast.

Selon le mode de réalisation plus particulièrement représenté sur les figures 3, 10 et 11, le corps 20 présente ici une forme complémentaire de la portion d'ellipsoïde 11 de la partie flexible 10, avec une surface externe latérale arrondie qui se raccorde à une surface externe supérieure plane formant une continuité de surface externe avec celle de la portion d'ellipsoïde 11 de la partie flexible 10.According to the embodiment more particularly represented on the Figures 3, 10 and 11, the body 20 here has a shape complementary to the portion of ellipsoid 11 of flexible part 10, with a lateral external surface rounded which connects to a flat upper external surface forming a continuity of external surface with that of the portion of ellipsoid 11 of the part flexible 10.

Ainsi le corps 20 constitue un prolongement de la forme générale en diabolo de la partie flexible 10.Thus the body 20 constitutes an extension of the general shape in diabolo of the flexible part 10.

Bien entendu, selon une variante de réalisation non représentée, on pourrait envisager que le corps 20 du raccord rapide présente tout simplement une forme tubulaire.Of course, according to an alternative embodiment not shown, we could consider that the body 20 of the quick coupling simply presents a tubular shape.

Comme le montrent plus particulièrement les figures 10 et 11, la partie flexible 10 étant percée d'un canal axial de circulation de fluide 4 formant la tubulure de raccordement de la chambre intérieure du corps de pompe 2 au raccord rapide, elle comprend à chaque extrémité dudit canal 4 un embout 16, 17 en matériau rigide pour son raccordement d'une part à un canal interne du raccord rapide partant en oblique par rapport à l'axe du canal axial 4 et d'autre part à une chambre intérieure non représentée du corps de pompe. As shown more particularly in FIGS. 10 and 11, the part flexible 10 being pierced with an axial fluid circulation channel 4 forming the connecting pipe of the interior chamber of the pump body 2 to quick coupling, it comprises at each end of said channel 4 an end piece 16, 17 made of rigid material for its connection on the one hand to an internal channel of the quick coupling starting obliquely to the axis of the axial channel 4 and other leaves to an interior chamber, not shown, of the pump body.

Ces embouts en matériau rigide 16, 17 peuvent être réalisés en matière métallique telle que du laiton.These ends made of rigid material 16, 17 can be made of material metallic such as brass.

L'embout 17 situé du côté du corps 20 peut être un simple manchon strié pour sa solidarisation à la portion d'ellipsoïde 11 de la partie flexible 10.The end piece 17 located on the side of the body 20 can be a simple striated sleeve for its attachment to the ellipsoid portion 11 of the flexible part 10.

De l'autre côté, côté corps 2 de la pompe 1, l'embout 16 est un manchon fileté extérieurement pour le montage par vissage du corps de la pompe de bicyclette.On the other side, body side 2 of the pump 1, the nozzle 16 is a sleeve externally threaded for screw mounting of the pump body bicycle.

Cet embout fileté 16 présente en partie arrière une gorge annulaire pour sa solidarisation avec la portion d'ellipsoïde 12 de la partie flexible 10.This threaded end piece 16 has at the rear part an annular groove for its connection with the ellipsoid portion 12 of the flexible part 10.

Ladite partie flexible 10 peut être réalisée par moulage, et plus particulièrement peut être surmoulée sur les embouts en matériau rigide 16, 17.Said flexible part 10 can be produced by molding, and more particularly can be molded onto the ends of rigid material 16, 17.

Elle peut être également réalisée par usinage de la matière souple.It can also be produced by machining the flexible material.

Selon le mode de réalisation avantageux représenté sur les figures 3, 10 et 11, la partie flexible 10 comporte sur au moins une partie de sa surface externe des stries 14, 15 lui conférant encore plus de flexibilité. Ces stries sont, par série, parallèles entre elles, et présentent une profondeur adaptée à la flexibilité que l'on souhaite conférer à cette partie flexible.According to the advantageous embodiment shown in Figures 3, 10 and 11, the flexible part 10 comprises on at least part of its surface external streaks 14, 15 giving it even more flexibility. These streaks are, by series, parallel to each other, and have a depth adapted to the flexibility that we want to give to this flexible part.

Par ailleurs, le corps 20 du raccord rapide est pourvu d'un logement cylindrique 21, ici cylindrique de révolution autour d'un axe X. Ce logement cylindrique 21 présente, à une extrémité, une ouverture circulaire 22 débouchant à l'extérieur et dans laquelle est destinée à s'engager la valve du pneumatique. A son autre extrémité, le logement cylindrique 21 est borgne et comporte dans son fond un plot de centrage 21a en forme de croix (voir plus particulièrement les figures 9, 10 et 11), pour le positionnement axial d'une boíte à clapet 30 comme cela sera décrit plus en détail ultérieurement.Furthermore, the body 20 of the quick coupling is provided with a housing cylindrical 21, here cylindrical of revolution around an axis X. This housing cylindrical 21 has, at one end, a circular opening 22 opening outside and in which is intended to engage the tire valve. At its other end, the cylindrical housing 21 is blind and comprises in its bottom a centering stud 21a in the shape of a cross (see more particularly Figures 9, 10 and 11), for the axial positioning of a valve box 30 as will be described in more detail later.

En outre, à proximité du fond du logement cylindrique 21, celui-ci comporte dans sa paroi latérale un orifice de communication avec un canal de circulation de fluide s'étendant en oblique par rapport à l'axe X et se raccordant au canal axial de circulation de fluide 4 de la partie flexible 10 formant le raccordement entre le corps 20 du raccord rapide et la chambre intérieure du corps de pompe 2.In addition, near the bottom of the cylindrical housing 21, it has in its side wall an orifice for communication with a channel circulation of fluid extending obliquely to the X axis and connecting to the axial fluid circulation channel 4 of the flexible part 10 forming the connection between the body 20 of the quick coupling and the interior chamber of the pump body 2.

En outre, il est prévu à l'intérieur du logement cylindrique 21 du corps 20 du raccord rapide, des moyens de raccordement étanche à la valve (non représentée) introduite dans l'ouverture 22 du logement cylindrique 21 du corps 20 du raccord rapide.In addition, it is provided inside the cylindrical housing 21 of the body 20 quick coupling, tight connection means to the valve (not shown) introduced into the opening 22 of the cylindrical housing 21 of the body 20 of the quick coupling.

Ici, selon la version préférée représentée sur les figures, lesdits moyens de raccordement étanches sont adaptés à deux types de valve, le type SCHRADER et le type PRESTA.Here, according to the preferred version shown in the figures, said means sealing connections are suitable for two types of valve, the type SCHRADER and the PRESTA type.

Ils sont aptes à cet effet à être positionnés dans ledit logement cylindrique 21 selon deux positions inversées.They are suitable for this purpose to be positioned in said cylindrical housing 21 in two inverted positions.

Ces moyens de raccordement étanches comprennent plus particulièrement une boíte à clapet 30 s'étendant selon l'axe X du logement cylindrique 21 et équipée à ses deux extrémités de deux bagues d'étanchéité 31, 32, élastiquement déformables de formes différentes.These sealed connection means more particularly a valve box 30 extending along the axis X of the housing cylindrical 21 and fitted at its two ends with two sealing rings 31, 32, elastically deformable of different shapes.

La bague 31 présente une forme sensiblement de cuvette avec un fond épais fixé par encliquetage sur une protubérance axiale 40 obturant l'extrémité de la boíte à clapet 30 et plus particulièrement obturant l'extrémité d'une chambre contenant une bille de clapet 33 adaptée à coopérer avec un siège de clapet, la protubérance axiale 40 étant traversée par un passage d'air axial 41. Au-dessus du siège de clapet, selon le sens de positionnement de la boíte à clapet représentée sur les figures 10 et 11, la boíte à clapet 30 présente un espace interne ouvert jusqu'à son extrémité équipée de la bague élastique 32 de forme générale tubulaire centrée sur l'axe X et s'étendant en saillie du corps 20 du raccord au travers de l'ouverture 22 du logement cylindrique 21.The ring 31 has a substantially bowl shape with a bottom thick fixed by snap-fastening on an axial protuberance 40 closing the end of the valve box 30 and more particularly sealing the end of a chamber containing a valve ball 33 adapted to cooperate with a seat valve, the axial protuberance 40 being traversed by an axial air passage 41. Above the valve seat, depending on the direction of positioning of the box valve shown in Figures 10 and 11, the valve box 30 has a internal space open to its end equipped with the elastic ring 32 of general tubular shape centered on the X axis and projecting from the body 20 of the fitting through the opening 22 of the cylindrical housing 21.

L'espace interne ouvert de la boíte à clapet 30 communique par des ouvertures latérales 30a prévues dans ledit piston avec un espace annulaire 21' formé entre la paroi du logement cylindrique 21 et la boíte à clapet 30, ledit espace annulaire 21' étant raccordé via l'orifice de communication au canal de circulation de fluide 4.The open internal space of the valve box 30 communicates by lateral openings 30a provided in said piston with an annular space 21 ' formed between the wall of the cylindrical housing 21 and the valve box 30, said annular space 21 'being connected via the communication orifice to the channel of fluid circulation 4.

Dans la position illustrée sur les figures 10 et 11, la protubérance axiale 40 portée par la boíte à clapet 30 est positionnée contre le pion 21a prévu dans le fond du logement cylindrique 21 de façon à centrer l'ensemble de la boíte à clapet 30 et des bagues d'étanchéité 31 et 32 dans le logement cylindrique 21 selon l'axe X du logement cylindrique 21.In the position illustrated in FIGS. 10 and 11, the axial protuberance 40 carried by the valve box 30 is positioned against the pin 21a provided in the bottom of the cylindrical housing 21 so as to center the whole of the box valve 30 and sealing rings 31 and 32 in the cylindrical housing 21 along the axis X of the cylindrical housing 21.

La position représentée sur les figures 10 et 11 permet l'adaptation du raccord rapide à une valve de type PRESTA. The position shown in Figures 10 and 11 allows the adaptation of the quick connection to a PRESTA type valve.

Pour adapter le raccord rapide à une valve de type SCHRADER, il suffit d'inverser la position de la boíte à clapet 30 équipée des deux bagues d'étanchéité 31, 32 de sorte que la protubérance axiale 40, portée par ladite boíte à clapet, se trouve orientée vers le haut, c'est-à-dire vers l'ouverture 22 du logement cylindrique 21, avec la bague d'étanchéité 31 s'étendant en saillie au travers de l'ouverture 22 du logement cylindrique 21.To adapt the quick coupling to a SCHRADER valve, simply to reverse the position of the valve box 30 fitted with two rings sealing 31, 32 so that the axial protuberance 40, carried by said valve box, is oriented upwards, that is to say towards the opening 22 of the cylindrical housing 21, with the sealing ring 31 projecting from the through the opening 22 of the cylindrical housing 21.

Le raccord rapide comporte des moyens de serrage desdits moyens de raccordement étanche explicités ci-dessus, et plus particulièrement d'une des bagues d'étanchéité 31, 32 portées par la boíte à clapet 30 sur une valve introduite dans l'ouverture 22 du logement cylindrique 21 du corps 20 dudit raccord.The quick coupling comprises means for clamping said means of tight connection explained above, and more particularly of one of the sealing rings 31, 32 carried by the valve box 30 on a valve introduced into the opening 22 of the cylindrical housing 21 of the body 20 of said connection.

Ces moyens de serrage vont être décrits maintenant dans le détail en référence plus particulièrement aux figures 3 à 9.These clamping means will now be described in detail in reference more particularly to FIGS. 3 to 9.

Lesdits moyens de serrage comprennent un capuchon 50 comportant un fond 51 percé en son centre d'une ouverture 52 recouvrant ladite ouverture d'extrémité 22 du logement cylindrique 21 du corps 20 du raccord rapide.Said clamping means comprise a cap 50 comprising a bottom 51 pierced in its center with an opening 52 covering said opening end 22 of the cylindrical housing 21 of the body 20 of the quick coupling.

Plus particulièrement, ici le corps 20 du raccord rapide comporte un col tubulaire 25 recevant le capuchon 50 de telle sorte que son fond 51 vient s'ajuster sur le bord périphérique du col tubulaire 25 avec son ouverture centrale 52 centrée sur l'axe X du logement cylindrique 21 du corps 20 du raccord rapide.More particularly, here the body 20 of the quick coupling comprises a neck tubular 25 receiving the cap 50 so that its bottom 51 comes fit on the peripheral edge of the tubular neck 25 with its central opening 52 centered on the axis X of the cylindrical housing 21 of the body 20 of the quick coupling.

Le capuchon 50 présente une jupe cylindrique 53 adaptée à recouvrir la face externe cylindrique 26 du col 25.The cap 50 has a cylindrical skirt 53 adapted to cover the cylindrical outer face 26 of the neck 25.

Le capuchon 50 comporte des moyens de montage coopérant avec des moyens de montage correspondants prévus au niveau de l'ouverture d'extrémité 22 du logement cylindrique 21, de sorte que la solidarisation du capuchon 50 sur le corps 20 du raccord rapide est réalisée par un montage à baïonnette et le serrage du capuchon 50 sur les moyens de raccordement, et plus particulièrement sur une des bagues d'étanchéité 31, 32 portées par la boíte à clapet 30 des moyens de raccordement, est réalisé par une coopération de surface de came 24a, suivant un mouvement de pivotement du capuchon 50 autour de l'axe X du logement cylindrique.The cap 50 comprises mounting means cooperating with corresponding mounting means provided at the end opening 22 of the cylindrical housing 21, so that the attachment of the cap 50 to the body 20 of the quick coupling is achieved by a bayonet mounting and tightening of the cap 50 on the connection means, and more particularly on one of the sealing rings 31, 32 carried by the valve box 30 of the connection means, is produced by a cam surface cooperation 24 a , following a pivoting movement of the cap 50 around the axis X of the cylindrical housing.

Le capuchon 50 a ici deux fonctions. Il permet d'obturer l'ouverture 22 du logement cylindrique 21 pour éviter une sortie intempestive des moyens de raccordement étanche. Son montage à baïonnette sur le col 25 du corps 20 du raccord permet de le monter et de le démonter aisément afin de pouvoir extraire lesdits moyens de raccordement (la boíte à clapet 30 équipée des bagues d'étanchéité 31, 32) pour en inverser la position dans ledit logement cylindrique en vue de leur adaptation à un autre type de valve. Le capuchon 50 permet également de serrer les moyens de raccordement étanche sur une valve introduite dans l'ouverture 22 du logement cylindrique du corps 20.The cap 50 has two functions here. It closes the opening 22 of the cylindrical housing 21 to avoid an untimely exit of the means of waterproof connection. Its bayonet mounting on the neck 25 of the body 20 of the fitting allows it to be easily assembled and disassembled in order to be able to extract said connection means (the valve box 30 fitted with rings sealing 31, 32) to reverse the position in said cylindrical housing with a view to their adaptation to another type of valve. The cap 50 allows also to tighten the tight connection means on a valve introduced into the opening 22 of the cylindrical housing of the body 20.

Plus particulièrement, comme cela est représenté sur les figures 3 à 9, les moyens de montage du capuchon 50 sont prévus sur la face interne 53a de la jupe cylindrique 53 et les moyens de montage correspondants 23, 24 prévus au niveau de l'ouverture 22 du logement cylindrique 21 sont positionnés sur la face externe cylindrique 26 du col tubulaire 25.More particularly, as shown in Figures 3 to 9, the means for mounting the cap 50 are provided on the internal face 53a of the cylindrical skirt 53 and the corresponding mounting means 23, 24 provided at level of the opening 22 of the cylindrical housing 21 are positioned on the face cylindrical outer 26 of the tubular neck 25.

Lesdits moyens de montage du capuchon 50 comprennent ici deux tétons 54, 55 positionnés de manière diamétralement opposée sur la face interne 53a de la jupe cylindrique 53 du capuchon 50, de sorte qu'ils forment une saillie radiale de cette face, et sont situés à proximité du bord libre 53b de ladite jupe cylindrique 53 du capuchon.Said means for mounting the cap 50 here comprise two pins 54, 55 positioned diametrically opposite on the internal face 53a of the cylindrical skirt 53 of the cap 50, so that they form a projection radial of this face, and are located near the free edge 53b of said skirt cylindrical 53 of the cap.

Les moyens de montage correspondants, prévus sur la face externe cylindrique 26 du col tubulaire 25 du corps du raccord rapide, comprennent deux chemins diamétralement opposés, chaque chemin recevant un téton 54, 55 et comportant une première partie coudée 23 d'engagement dudit téton pour le montage à baïonnette du capuchon 50 sur le col tubulaire 25 du corps 20 du raccord rapide, et une seconde partie 24 constituée par une rampe pourvue de ladite surface de came 24a pour le serrage du capuchon 50 sur lesdits moyens de raccordement étanche et en particulier sur une bague d'étanchéité 31 ou 32 portée par la boíte à clapet 30.The corresponding mounting means, provided on the external face cylindrical 26 of the tubular neck 25 of the body of the quick coupling, comprise two diametrically opposite paths, each path receiving a stud 54, 55 and comprising a first bent portion 23 for engaging said stud for the bayonet mounting of the cap 50 on the tubular neck 25 of the body 20 of the quick coupling, and a second part 24 constituted by a ramp provided with said cam surface 24a for tightening the cap 50 on said means waterproof connection and in particular on a sealing ring 31 or 32 carried by the valve box 30.

Chaque chemin recevant un téton vient de formation avec le col tubulaire 25 du corps 20.Each path receiving a nipple comes from formation with the tubular neck 25 of body 20.

La partie coudée 23 de chaque chemin comporte une partie s'étendant parallèlement à l'axe X du logement cylindrique puis une partie s'étendant sensiblement transversalement, c'est-à-dire tangentiellement à la face externe cylindrique 26 du col tubulaire 25. Chaque partie d'engagement coudée 23 du chemin formé sur la face externe cylindrique du col tubulaire 25 est délimitée par une butée non référencée dont la surface externe forme une rampe de guidage du téton engagé dans cette partie coudée d'engagement de manière à obtenir un montage à baïonnette élastique du capuchon 50 sur le col tubulaire 25 du corps 20 du raccord rapide. Ce montage à baïonnette permet tout simplement de solidariser le capuchon 50 au corps 20 du raccord rapide et d'éviter une sortie intempestive de la boíte à clapet 30 munie des bagues d'étanchéité du logement intérieur cylindrique 21 du corps 20 du raccord rapide.The bent portion 23 of each path has a portion extending parallel to the axis X of the cylindrical housing then a part extending substantially transversely, that is to say tangentially to the external face cylindrical 26 of the tubular neck 25. Each bent engagement portion 23 of the path formed on the cylindrical external face of the tubular neck 25 is delimited by an unreferenced stop whose external surface forms a guide ramp of the nipple engaged in this bent portion of engagement so as to obtain a elastic bayonet mounting of the cap 50 on the tubular neck 25 of the body 20 of the quick coupling. This bayonet mount simply allows secure the cap 50 to the body 20 of the quick coupling and avoid an exit untimely valve box 30 provided with housing sealing rings cylindrical interior 21 of the body 20 of the quick coupling.

En ce qui concerne la partie 24 du chemin constituée par une rampe et pourvue de ladite surface de came 24a, elle comprend également dans son fond un décrochement 24b contre lequel vient se bloquer le téton engagé dans la rampe pour permettre le verrouillage du capuchon 50 en position serrée sur le col tubulaire 25 du corps 20 du raccord rapide.Regarding the part 24 of the path formed by a ramp and provided with said cam surface 24 a , it also includes in its bottom a recess 24 b against which the stud engaged in the ramp is blocked to allow the locking of the cap 50 in the clamped position on the tubular neck 25 of the body 20 of the quick coupling.

Les tétons 54, 55 du capuchon 50 viennent avantageusement de formation avec le capuchon 50.The pins 54, 55 of the cap 50 advantageously come from cap formation 50.

En outre, le capuchon 50 comporte un levier de manoeuvre 60 pour l'entraínement de celui-ci suivant le mouvement de pivotement autour de l'axe X du logement cylindrique 21 en vue de son serrage sur une bague d'étanchéité 31 ou 32 portée par la boíte à clapet 30 constituant lesdits moyens de raccordement étanche. Ce levier de manoeuvre 60 s'étend dans le plan du fond 51 du capuchon 50 et présente deux faces latérales 61, 62 se raccordant tangentiellement à la face externe 53c de la jupe cylindrique 53 du capuchon 50.In addition, the cap 50 comprises an operating lever 60 for driving it according to the pivoting movement around the axis X of the cylindrical housing 21 for tightening on a sealing ring 31 or 32 carried by the valve box 30 constituting said sealed connection means. This operating lever 60 extends in the plane of the bottom 51 of the cap 50 and has two lateral faces 61, 62 which are tangentially connected to the external face 53 c of the cylindrical skirt 53 of the cap 50.

Comme le montrent plus particulièrement les figures 1 et 2, le levier 60 présente une face latérale externe 61 dont la forme épouse les contours externes du corps 20 du raccord et de la portion d'ellipsoïde 11 associée de la partie flexible 10, de telle sorte que lorsque le capuchon est en position serrée sur le col tubulaire 25 du corps 20 du raccord rapide, il se fond dans la forme générale du raccord rapide associé à la partie flexible 10 de raccordement du raccord rapide au corps de la pompe de bicyclette 1. L'autre face latérale 62 du levier 60, outre le fait qu'elle se raccorde tangentiellement à la surface externe 53c de la jupe cylindrique 53 dudit capuchon, elle présente ici un profil droit.As shown more particularly in Figures 1 and 2, the lever 60 has an external lateral face 61 whose shape follows the contours external of the body 20 of the fitting and of the associated portion of ellipsoid 11 of the flexible part 10, so that when the cap is in the tightened position on the tubular neck 25 of the body 20 of the quick coupling, it melts in the shape general of the quick coupling associated with the flexible part 10 for connecting the quick connection to the bicycle pump body 1. The other side face 62 of the lever 60, in addition to the fact that it tangentially connects to the external surface 53c of the cylindrical skirt 53 of said cap, it has here a straight profile.

Bien entendu, selon une variante de réalisation non représentée, le levier peut présenter à une extrémité un méplat pour permettre un meilleur appui du pouce sur ledit levier de façon à actionner ce dernier. La face latérale droite 62 du levier 60 forme une surface d'appui du pouce d'un actionneur du levier de manoeuvre.Of course, according to a variant embodiment not shown, the lever may have at one end a flat to allow better support of the thumb on said lever so as to actuate the latter. The right side face 62 lever 60 forms a thumb support surface of a lever actuator maneuver.

Il convient également de préciser que, selon le mode de réalisation représenté sur les figures 4 et 5, le capuchon 50 présente en variante dans son fond 51 des jours 51b, 51a positionnés de part et d'autre de son ouverture centrale 52 débouchant d'une part vers l'extérieur et d'autre part vers l'intérieur du côté des tétons 54, 55 portés par la face interne de la jupe cylindrique 53 dudit capuchon.It should also be noted that, according to the embodiment shown in FIGS. 4 and 5, the cap 50 has, as a variant, at its bottom 51 days 51 b , 51 a positioned on either side of its central opening 52 opening out. on the one hand towards the outside and on the other hand towards the inside on the side of the pins 54, 55 carried by the internal face of the cylindrical skirt 53 of said cap.

Ainsi, comme le montrent plus particulièrement les figures 10 et 11, en actionnant le levier de façon à faire pivoter le capuchon 50 autour de l'axe X du logement cylindrique 21, on fait descendre le capuchon axialement par coopération des tétons 54, 55 qu'il porte avec les surfaces de came 24 des rampes prévues sur la face externe 26 du col tubulaire 25 du corps 20 du raccord rapide, de façon à compresser la bague d'étanchéité, ici la bague d'étanchéité 32, se trouvant entre le col tubulaire 25 et la face interne du fond 51 du capuchon 50, le bord libre de la bague d'étanchéité 32 venant alors serrer la valve (ici non représentée) introduite dans l'ouverture 22 du logement cylindrique 21, via l'ouverture 52 du capuchon.Thus, as shown more particularly in FIGS. 10 and 11, in operating the lever so as to rotate the cap 50 around the X axis of the cylindrical housing 21, the cap is lowered axially by cooperation of the pins 54, 55 which it carries with the cam surfaces 24 of the ramps provided on the external face 26 of the tubular neck 25 of the body 20 of the quick coupling, so as to compress the sealing ring, here the ring sealing 32, located between the tubular neck 25 and the inner face of the bottom 51 of the cap 50, the free edge of the sealing ring 32 then tightening the valve (not shown here) introduced into the opening 22 of the cylindrical housing 21, via the opening 52 of the cap.

Bien entendu, la présente invention n'est nullement limitée aux modes de réalisation décrits et représentés, mais l'homme du métier saura y apporter toute variante conforme à son esprit.Of course, the present invention is in no way limited to the modes of realization described and represented, but the person skilled in the art will be able to bring it all variant according to his spirit.

Claims (10)

Raccord rapide destiné à être adapté temporairement sur une valve pour le gonflage d'un pneumatique, ledit raccord étant raccordé à une source de fluide tel qu'un corps de pompe de bicyclette, et comprenant un corps (20) pourvu d'un logement cylindrique (21) présentant à une extrémité une ouverture (22) débouchant à l'extérieur et contenant des moyens de raccordement étanche (30,40,31,32) établissant la liaison entre ladite valve engagée dans ladite ouverture et la source de fluide, et des moyens de serrage desdits moyens de raccordement étanche sur ladite valve, caractérisé en ce que lesdits moyens de serrage comprennent un capuchon (50) percé en son centre d'une ouverture (52) et recouvrant ladite ouverture d'extrémité (22) du logement cylindrique (21) du corps (20), ledit capuchon (50) comprenant des moyens de montage (54,55) coopérant avec des moyens de montage correspondants (23,24) prévus au niveau de ladite ouverture d'extrémité (22) dudit logement cylindrique (21), de sorte que la solidarisation du capuchon (50) sur le corps (20) est réalisée par un montage à baïonnette et le serrage du capuchon (50) sur les moyens de raccordement est réalisé par une coopération de surface de came (24a), suivant un mouvement de pivotement du capuchon autour de l'axe (X) du logement cylindrique (21).Quick connector intended to be temporarily adapted to a valve for inflating a tire, said connector being connected to a source of fluid such as a bicycle pump body, and comprising a body (20) provided with a cylindrical housing (21) having at one end an opening (22) opening to the outside and containing sealing connection means (30,40,31,32) establishing the connection between said valve engaged in said opening and the source of fluid, and tightening means of said sealed connection means on said valve, characterized in that said tightening means comprise a cap (50) pierced in its center with an opening (52) and covering said end opening (22) of the housing cylindrical (21) of the body (20), said cap (50) comprising mounting means (54,55) cooperating with corresponding mounting means (23,24) provided at said end opening (22) of said cyl housing indrique (21), so that the fixing of the cap (50) on the body (20) is carried out by a bayonet mounting and the tightening of the cap (50) on the connection means is carried out by a cam surface cooperation (24 a ), following a pivoting movement of the cap around the axis (X) of the cylindrical housing (21). Raccord selon la revendication 1, caractérisé en ce que le corps (20) comporte un col tubulaire (25) recevant le capuchon (50) qui présente une jupe cylindrique (53) adaptée à recouvrir la face externe cylindrique (26) dudit col (25), lesdits moyens de montage (54,55) du capuchon (50) étant prévus sur la face interne (53a) de ladite jupe cylindrique (53), et lesdits moyens de montage correspondants (23,24) prévus au niveau de l'ouverture d'extrémité (22) dudit logement cylindrique (21) étant positionnés sur la face externe cylindrique (26) dudit col (25).Fitting according to claim 1, characterized in that the body (20) comprises a tubular neck (25) receiving the cap (50) which has a cylindrical skirt (53) adapted to cover the cylindrical external face (26) of said neck (25 ), said mounting means (54,55) of the cap (50) being provided on the internal face (53 a ) of said cylindrical skirt (53), and said corresponding mounting means (23,24) provided at level end opening (22) of said cylindrical housing (21) being positioned on the cylindrical external face (26) of said neck (25). Raccord selon la revendication 2, caractérisé en ce que lesdits moyens de montage du capuchon (50) comprennent au moins un téton (54,55) faisant saillie de la face interne (53a) de la jupe cylindrique (53) du capuchon (50) et situé à proximité du bord libre (53b) de ladite jupe (53), et lesdits moyens de montage correspondants prévus sur la face externe cylindrique (26) du col tubulaire (25), comprennent au moins un chemin recevant ledit téton comportant une première partie coudée (23) d'engagement dudit téton pour le montage à baïonnette du capuchon (50) sur le col (25) et une seconde partie (24) constituée par une rampe pourvue de ladite surface de came (24a) pour le serrage du capuchon (50) sur lesdits moyens de raccordement étanche.Fitting according to claim 2, characterized in that said cap mounting means (50) comprise at least one stud (54, 55) projecting from the internal face (53 a ) of the cylindrical skirt (53) of the cap (50 ) and located near the free edge (53 b ) of said skirt (53), and said corresponding mounting means provided on the cylindrical external face (26) of the tubular neck (25), comprise at least one path receiving said stud comprising a first bent part (23) for engaging said stud for the bayonet mounting of the cap (50) on the neck (25) and a second part (24) constituted by a ramp provided with said cam surface (24 a ) for tightening the cap (50) on said sealed connection means. Raccord selon la revendication 3, caractérisé en ce que ladite rampe (24) pourvue de la surface de came (24a) comporte dans son fond un décrochement (24b) pour le verrouillage du capuchon (50) en position serrée sur le col tubulaire (25) dudit corps.Fitting according to claim 3, characterized in that said ramp (24) provided with the cam surface (24 a ) has at its bottom a recess (24 b ) for locking the cap (50) in the tight position on the tubular neck (25) of said body. Raccord selon l'une des revendications 3 ou 4, caractérisé en ce que le chemin pour le téton vient de formation avec le col tubulaire (25) dudit corps (20).Fitting according to one of Claims 3 or 4, characterized in that the path for the nipple has just formed with the tubular neck (25) of said body (20). Raccord selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le téton vient de formation avec le capuchon (50).Fitting according to any one of claims 3 to 5, characterized in that the stud comes from formation with the cap (50). Raccord selon l'une quelconque des revendications 3 à 6, caractérisé en ce que le capuchon comporte deux tétons (53,54) positionnés de manière diamétralement opposée et aptes à coopérer avec deux chemins prévus sur la face externe (26) du col tubulaire (25) de manière diamétralement opposée.Fitting according to any one of claims 3 to 6, characterized in that the cap has two pins (53,54) positioned so diametrically opposite and able to cooperate with two paths provided on the outer face (26) of the tubular neck (25) diametrically opposite. Raccord selon l'une quelconque des revendications 2 à 7, caractérisé en ce que le capuchon (50) comporte un levier de manoeuvre (60) pour l'entraínement de celui-ci selon le mouvement de pivotement autour de l'axe (X) du logement cylindrique (21) en vue de son serrage sur lesdits moyens de raccordement, ledit levier de manoeuvre (60) s'étendant dans le plan du fond (51) du capuchon (50) et présentant deux faces latérales (61,62) se raccordant tangentiellement à la face externe (53c) de la jupe cylindrique (53) dudit capuchon (50).Fitting according to any one of Claims 2 to 7, characterized in that the cap (50) comprises an operating lever (60) for driving it according to the pivoting movement around the axis (X) cylindrical housing (21) for tightening on said connection means, said operating lever (60) extending in the plane of the bottom (51) of the cap (50) and having two lateral faces (61,62) tangentially connecting to the external face (53 c ) of the cylindrical skirt (53) of said cap (50). Raccord selon l'une quelconque des revendications 1 à 8, caractérisé en ce que lesdits moyens de raccordement étanche sont adaptés à deux types de valve, le type SCHRADER et le type PRESTA, ils sont aptes à cet effet à être positionnés dans ledit logement cylindrique (21) selon deux positions inversées, et comprennent une boíte à clapet (30) portant à une extrémité une protubérance axiale (40) destinée à coopérer avec une valve de type SCHRADER, et équipée à ses deux extrémités de deux bagues d'étanchéité (31,32), à savoir, d'un côté, une bague d'étanchéité (31) adaptée à coiffer une valve de type SCHRADER et présentant un fond traversé par la protubérance axiale (40), et d'un autre côté, une bague d'étanchéité (32) adaptée à coiffer une valve de type PRESTA, ledit capuchon (50) étant apte à serrer chacune des deux bagues d'étanchéité (31,32) contre la valve engagée dans ladite ouverture d'extrémité (22) du logement cylindrique (21) dudit corps(20).Fitting according to any one of claims 1 to 8, characterized in that said sealed connection means are adapted to two types valve, type SCHRADER and type PRESTA, they are suitable for this purpose to be positioned in said cylindrical housing (21) in two inverted positions, and include a valve box (30) carrying at one end a axial protuberance (40) intended to cooperate with a type valve SCHRADER, and fitted at its two ends with two sealing rings (31,32), namely, on one side, a sealing ring (31) adapted to cover a SCHRADER type valve with a bottom through which the protrusion axial (40), and on the other hand, a sealing ring (32) adapted to cover a PRESTA type valve, said cap (50) being capable of tightening each of the two sealing rings (31,32) against the valve engaged in said opening end (22) of the cylindrical housing (21) of said body (20). Pompe à main de bicyclette (1) comprenant un corps de pompe (2) à poignée (3), une tige solidaire de la poignée et portant à une extrémité un piston adapté à coulisser dans le corps de pompe et un raccord rapide selon l'une quelconque des revendications 1 à 9 auquel est raccordé par une tubulure ledit corps de pompe.Bicycle hand pump (1) comprising a pump body (2) with handle (3), a rod integral with the handle and carrying at one end a piston suitable for sliding in the pump body and a quick coupling according to one any one of claims 1 to 9 to which is connected by tubing said pump body.
EP01400229A 2000-01-31 2001-01-30 Quick connector for a tyre pump and bicycle pump with this connector Withdrawn EP1122432A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0001202A FR2804491B1 (en) 2000-01-31 2000-01-31 QUICK CONNECTOR FOR INFLATING A TIRE AND BICYCLE PUMP COMPRISING SUCH A CONNECTOR
FR0001202 2000-01-31

Publications (1)

Publication Number Publication Date
EP1122432A1 true EP1122432A1 (en) 2001-08-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01400229A Withdrawn EP1122432A1 (en) 2000-01-31 2001-01-30 Quick connector for a tyre pump and bicycle pump with this connector

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EP (1) EP1122432A1 (en)
FR (1) FR2804491B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD969876S1 (en) 2020-12-11 2022-11-15 Milwaukee Electric Tool Corporation Inflator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR437650A (en) * 1911-02-23 1912-04-25 Benjamin Eugene Verge Air pump applicable in particular to the inflation of tires
GB154525A (en) * 1920-08-17 1920-12-02 Robinson Scaling Burn Improvements in and relating to tyre pumps or inflators
FR2726347A1 (en) * 1994-10-28 1996-05-03 Zefal Quick connection for pneumatic chambers, e.g. bicycle pumps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR437650A (en) * 1911-02-23 1912-04-25 Benjamin Eugene Verge Air pump applicable in particular to the inflation of tires
GB154525A (en) * 1920-08-17 1920-12-02 Robinson Scaling Burn Improvements in and relating to tyre pumps or inflators
FR2726347A1 (en) * 1994-10-28 1996-05-03 Zefal Quick connection for pneumatic chambers, e.g. bicycle pumps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD969876S1 (en) 2020-12-11 2022-11-15 Milwaukee Electric Tool Corporation Inflator

Also Published As

Publication number Publication date
FR2804491A1 (en) 2001-08-03
FR2804491B1 (en) 2002-09-06

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