EP0777049A1 - Pump connection device - Google Patents

Pump connection device Download PDF

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Publication number
EP0777049A1
EP0777049A1 EP96402529A EP96402529A EP0777049A1 EP 0777049 A1 EP0777049 A1 EP 0777049A1 EP 96402529 A EP96402529 A EP 96402529A EP 96402529 A EP96402529 A EP 96402529A EP 0777049 A1 EP0777049 A1 EP 0777049A1
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EP
European Patent Office
Prior art keywords
connection device
movable element
valve
lever
channel
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
EP96402529A
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German (de)
French (fr)
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EP0777049B1 (en
Inventor
Joel Glotin
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Z E F A L
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Z E F A L
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Publication of EP0777049A1 publication Critical patent/EP0777049A1/en
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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3584—Inflatable article [e.g., tire filling chuck and/or stem]
    • Y10T137/3724—With coupling means

Definitions

  • the invention relates to a pump connection device for inflating a tire; it relates more particularly to an improvement making it possible to use the pump for tires of various origins comprising valves of different types.
  • valve may be of one type or another.
  • the most widely used valves are essentially of two types known under the trade names "SCHRADER” and "PRESTA".
  • a pump is known which has two different, fixed connection nozzles, each nozzle comprising a sleeve made of elastomeric material capable of coming to surround the valve body with a relative seal.
  • the nozzle used is difficult to subject in a truly sealed manner to the valve.
  • the unused nozzle is neutralized by an internal closure system actuated pneumatically at the first stroke of the pump. This system has a high cost price and is not absolutely reliable after a certain period of use.
  • a first object of the invention is to propose a simpler, more reliable and less expensive system making it possible to select the suitable connection end piece.
  • Another object of the invention is to propose an even more sophisticated system in which the end piece selected connection can be firmly and tightly secured to the valve.
  • the invention therefore relates to a pump connection device for inflating a tire, characterized in that it comprises an air ejection channel capable of being connected to said pump and a movable element containing at least two different connection end pieces, and in that said movable element is movable in a housing to come occupy one or the other of at least two corresponding predetermined positions in which one of the end pieces is in communication with said channel, downstream thereof and in position to be connected to a tire valve.
  • the movable element can be a slide movable along a rectilinear path in a housing.
  • the mobile element may include a rotary part mounted inside a cavity into which said ejection channel opens.
  • connection device in which each end piece comprises a sleeve made of elastically deformable material capable of coming to bear against the valve is characterized in that it also comprises a locking mechanism cooperating with said movable element for compressing, axially, at least the sleeve of the end piece in position to be connected to a valve, the axial compression of the end piece causing its deformation radially inwardly to grip said valve tightly.
  • a pump connection device 11 for inflating a two-wheeled vehicle tire is shown connected by a threaded end piece 12 at the end of a flexible pipe 13 itself. - even connected to a pump not visible in the drawing.
  • the device comprises a body 14 inside which is defined an air ejection channel 16. This is produced by two perpendicular bores, a longitudinal bore 16a opening into the threaded bore 17 into which the screw is screwed. end piece 12 and a transverse bore 16b.
  • the outlet outlet 19 of the channel, at the end of the transverse bore, is defined on a first surface 20 of the body 14.
  • a second surface 21 of this body, opposite and parallel constitutes a bearing surface for a defined cam 22 at the end of a lever 23.
  • the body 14 is covered with a cover 25 defining with said first surface 20 a housing 27 of generally elongated shape, comprising on a face 28 parallel to said first surface 20 an orifice 30 for the valve engagement.
  • a mobile element 32 is movable in the housing 27 to come to occupy one or the other of at least two predetermined positions.
  • This movable element constituting here a kind of slide in the general shape of a rectangular parallelepiped, contains at least two different connection ends 33, 34.
  • the number of predetermined positions is equal to the number of different connection tips.
  • one of the end pieces is interposed axially between the outlet orifice 19 of the channel and the orifice 30 into which the valve is introduced.
  • annular seal 36 is arranged around the orifice of the channel; it comes into contact with one face of the movable element forming a slide.
  • the two connection ends are defined parallel to each other inside this slide. More specifically, the latter consists of the assembly of two parts 37, 38 which fit into one another with the interposition of two sleeves made of elastomer material 39, 40.
  • the part 37 in contact with said first surface 20 of the body 14 has a first cylindrical tubular passage 44 and a second passage 42 parallel to the first, provided with an axial insert 41.
  • the part 38 in contact with the inner wall of the cover 25 comprises a first passage 43, cylindrical tubular, provided an internal shoulder, defined in the axial extension of the first passage 39 and a second cylindrical tubular passage 45 provided with an internal shoulder defined in the axial extension of the second passage 42.
  • the sleeve 39 made of elastically deformable material, having an internal shoulder and an external shoulder, is interposed between said first passages of parts 37 and 38.
  • the other sleeve 40 of elastically deformable material of the same nature, tubular cylindrical having an internal shoulder, is interposed between said second passages of parts 37 and 38.
  • connection ends are defined parallel to each other and the movable element 32 in the form of a slide can move along a rectilinear path in the housing 27 between the two orifices.
  • Each end piece 33, 34 is therefore capable of being put into service when the slide is in a position predetermined corresponding, inside its housing.
  • the sleeve of elastically deformable material 39 or 40 is capable of being applied in a sealed manner all around the body of the valve which is introduced into the orifice.
  • the device further comprises a locking mechanism cooperating with the movable element 32 to compress axially at least the sleeve of the end piece 33 or 34 in position to be connected to said valve.
  • This axial compression of the nozzle causes its deformation radially inward, which allows to firmly grip said valve while achieving a perfectly sealed junction.
  • the two parts 37, 38 are not in abutment at rest but can move relative to each other under the effect of a force tending to compress the sleeves axially 39 , 40.
  • the actuation of the same locking mechanism also causes compression of the seal 36 ensuring perfect sealing of the interface between the body 14 and the slide.
  • the locking mechanism comprises the lever 27 mentioned above, provided with the cam 22, and this assembly is arranged to cause a relative displacement between at least part of the movable element 32 and the body 14 containing the ejection channel d 'air.
  • the cover 25 is slidably mounted along the body 14 and the lever 23 is articulated to said cover 25 by an axis 49.
  • the cover also comprises a rectilinear opening 50 extending parallel to the direction of movement of the movable element 32 and the latter comprises a lateral actuating finger 52 passing through said opening.
  • the slide can be maneuvered using this finger when the lever 23 occupies the position shown in FIG. 2. It is thus possible to select the suitable connection endpiece.
  • connection device 60 there is shown a variant of a connection device 60, this being mounted directly at the end of a pump cylinder 61.
  • the outlet of the pump is extended by a body 62 containing the air ejection channel 63 in which is also installed a non-return ball valve 64.
  • the stroke of the ball is limited by a stop 65 extending axially in said channel.
  • the above-mentioned mobile element 68 comprises a rotary part mounted inside a cavity 67 into which the ejection channel opens.
  • the outlet orifice 69 of the air ejection channel has the same axis as the orifice 70 for introducing the valve.
  • the rotary part comprises a transverse conduit 72 incorporating two different connection end pieces 73, 74, similar to those shown in FIGS. 2 and 3. These two end pieces are arranged axially in opposite directions in the extension of one another. They thus extend generally between the outlet orifice 69 of the channel and the orifice 70 for introducing the valve.
  • This conduit is constituted by a central part 75 comprising on one side a cylindrical tubular passage and on the other side a passage provided with an axial insert and by two sleeves of elastically deformable material 77, 78 similar to the sleeves of the embodiment preceding and extending axially on either side of the part 75.
  • the conduit 72 defined above as a whole constitutes a guide for two generally semi-cylindrical elements 80, 81, mounted to slide outside the transverse duct and biased in opposite directions by springs 84 interposed between them.
  • the outer, semi-cylindrical surface of each element 80, 81 has ribs 86 or another equivalent configuration.
  • the assembly constituted by the conduit 72 and the two semi-cylindrical elements 80, 81 is mounted between two clamping parts capable of approaching one another under the action of the lever 88, provided with a cam, in contact with the body 62, compressing the assembly in the axial direction defined by the two orifices 69, 70.
  • one of the clamping parts is constituted by the body 62 housing the air ejection channel 63 and having a concave surface 90 in which is housed in part the assembly consisting of the conduit 72 and the two semi elements -cylindrical 80, 81.
  • the other clamping part 92 is provided with two arms 93 sliding inside two corresponding grooves of said body 62.
  • the lever 88 is articulated by an axis 95 between the two ends of these arms.
  • the orifice 70 for introducing the valve is made in this second clamping part 92, which also includes a concave surface 97 enveloping part of said assembly constituted by the conduit and the two semi-cylindrical elements.
  • the above-mentioned assembly 72, 80, 81 can be rotated in its housing defined between the two clamping pieces 62, 92, so as to be able to put one or the other of the two end pieces 73 or 74 in the service position.
  • the sleeve of elastically deformable material of the other end piece is in a position to seal between the orifice 69 of the channel 63 and said conduit 72.
  • the operation of the lever causes the approximation of the two clamping pieces and the desired deformation of the two sleeves 77, 78 of elastically deformable material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The pump connector has an air ejection channel (16) which is linked to the pump. A movable member (32), with two or more different nozzles (33,34), can be set in predetermined positions so that the appropriate nozzle links the tyre valve to the pump. Each nozzle has a sleeve (39,40) of an elastically deformable material to fit onto the valve. A locking mechanism (23) interacts with the movable element to press the sleeve axially onto the valve. The locking mechanism consists of a lever with a cam (22) which applies a pressure to the movable element and at the same time compressed the ejection channel seal (36) against it. The movable element is designed so that it either slides lengthwise or rotates inside the connector.

Description

L'invention se rapporte à un dispositif de raccordement de pompe pour le gonflage d'un pneumatique; elle concerne plus particulièrement un perfectionnement permettant d'utiliser la pompe pour des pneumatiques d'origines diverses comportant des valves de types différents.The invention relates to a pump connection device for inflating a tire; it relates more particularly to an improvement making it possible to use the pump for tires of various origins comprising valves of different types.

Dans le domaine des véhicules à deux roues, par exemple, il est nécessaire de regonfler périodiquement les pneus. Cette opération peut être faite à partir d'un compresseur de petite puissance ou d'une pompe à main.In the field of two-wheeled vehicles, for example, it is necessary to periodically re-inflate the tires. This operation can be done from a low power compressor or a hand pump.

Dans tous les cas, se pose le problème du raccordement de la source d'air comprimé à la valve du pneu. Selon l'origine de ce dernier, la valve peut être d'un type ou d'un autre. Par exemple, dans le domaine des pneus de véhicule à deux roues, les valves les plus utilisées sont essentiellement de deux types connus sous les dénominations commerciales "SCHRADER" et "PRESTA". On connaît une pompe présentant deux embouts de raccordement différents, fixes, chaque embout comportant un manchon en matériau élastomère susceptible de venir entourer le corps de la valve avec une relative étanchéité.In all cases, there is the problem of connecting the source of compressed air to the tire valve. Depending on the origin of the latter, the valve may be of one type or another. For example, in the field of two-wheeled vehicle tires, the most widely used valves are essentially of two types known under the trade names "SCHRADER" and "PRESTA". A pump is known which has two different, fixed connection nozzles, each nozzle comprising a sleeve made of elastomeric material capable of coming to surround the valve body with a relative seal.

Cependant, particulièrement lorsqu'il s'agit d'une pompe à main et que le dispositif de raccordement est rigidement solidaire du corps de pompe, l'embout utilisé est difficile à assujettir de façon réellement étanche à la valve. De plus, dans le système connu, l'embout non utilisé est neutralisé par un système d'obturation interne actionné pneumatiquement au premier coup de pompe. Ce système est d'un prix de revient élevé et n'est pas d'un fonctionnement absolument fiable au bout d'un certain temps d'usage.However, particularly when it is a hand pump and the connection device is rigidly secured to the pump body, the nozzle used is difficult to subject in a truly sealed manner to the valve. In addition, in the known system, the unused nozzle is neutralized by an internal closure system actuated pneumatically at the first stroke of the pump. This system has a high cost price and is not absolutely reliable after a certain period of use.

Un premier but de l'invention est de proposer un système plus simple, plus fiable et moins coûteux permettant de sélectionner l'embout de raccordement convenable.A first object of the invention is to propose a simpler, more reliable and less expensive system making it possible to select the suitable connection end piece.

Un autre but de l'invention est de proposer un système encore plus perfectionné dans lequel l'embout de raccordement sélectionné peut être assujetti de façon très ferme et étanche à la valve.Another object of the invention is to propose an even more sophisticated system in which the end piece selected connection can be firmly and tightly secured to the valve.

En premier lieu, l'invention concerne donc un dispositif de raccordement de pompe pour le gonflage d'un pneumatique, caractérisé en ce qu'il comporte un canal d'éjection d'air susceptible d'être raccordé à ladite pompe et un élément mobile renfermant au moins deux embouts de raccordement différents, et en ce que ledit élément mobile est déplaçable dans un logement pour venir occuper l'une ou l'autre d'au moins deux positions prédéterminées correspondantes dans laquelle l'un des embouts se trouve en communication avec ledit canal, en aval de celui-ci et en position d'être raccordé à une valve de pneumatique.Firstly, the invention therefore relates to a pump connection device for inflating a tire, characterized in that it comprises an air ejection channel capable of being connected to said pump and a movable element containing at least two different connection end pieces, and in that said movable element is movable in a housing to come occupy one or the other of at least two corresponding predetermined positions in which one of the end pieces is in communication with said channel, downstream thereof and in position to be connected to a tire valve.

L'élément mobile peut être un coulisseau déplaçable selon un trajet rectiligne dans un logement. Selon une autre variante, l'élément mobile peut comporter une partie rotative montée à l'intérieur d'une cavité dans laquelle débouche ledit canal d'éjection.The movable element can be a slide movable along a rectilinear path in a housing. According to another variant, the mobile element may include a rotary part mounted inside a cavity into which said ejection channel opens.

Selon une autre caractéristique avantageuse de l'invention, le dispositif de raccordement dans lequel chaque embout comporte un manchon en matériau élastiquement déformable susceptible de venir s'appliquer contre la valve est caractérisé en ce qu'il comporte en outre un mécanisme de verrouillage coopérant avec ledit élément mobile pour comprimer, axialement, au moins le manchon de l'embout en position d'être raccordé à une valve, la compression axiale de l'embout entraînant sa déformation radialement vers l'intérieur pour venir enserrer ladite valve de façon étanche.According to another advantageous characteristic of the invention, the connection device in which each end piece comprises a sleeve made of elastically deformable material capable of coming to bear against the valve is characterized in that it also comprises a locking mechanism cooperating with said movable element for compressing, axially, at least the sleeve of the end piece in position to be connected to a valve, the axial compression of the end piece causing its deformation radially inwardly to grip said valve tightly.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre de plusieurs modes de réalisation d'une pompe munie d'un dispositif de raccordement conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels:

  • la figure 1 est une vue en élévation d'un dispositif de raccordement conforme à l'invention;
  • la figure 2 est une vue analogue à la figure 1, illustrant le même dispositif en coupe longitudinale;
  • la figure 3 est une vue analogue à la figure 2, montrant les éléments du dispositif lorsque le levier de verrouillage est actionné;
  • la figure 4 est une vue en élévation de l'extrémité d'une pompe équipée d'un dispositif de raccordement selon une variante de l'invention;
  • la figure 5 est une vue analogue à la figure 4, illustrant le même dispositif en coupe longitudinale; et
  • la figure 6 est une vue semblable à la figure 5, montrant les éléments du dispositif lorsque le levier de verrouillage est actionné.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of several embodiments of a pump provided with a connection device in accordance with its principle, given only by way of example and with reference to the appended drawings in which:
  • Figure 1 is an elevational view of a connection device according to the invention;
  • Figure 2 is a view similar to Figure 1, illustrating the same device in longitudinal section;
  • Figure 3 is a view similar to Figure 2 showing the elements of the device when the locking lever is actuated;
  • Figure 4 is an elevational view of the end of a pump equipped with a connection device according to a variant of the invention;
  • Figure 5 is a view similar to Figure 4, illustrating the same device in longitudinal section; and
  • Figure 6 is a view similar to Figure 5 showing the elements of the device when the locking lever is actuated.

En se reportant plus particulièrement aux figures 1 à 3, un dispositif de raccordement de pompe 11, pour le gonflage d'un pneu de véhicule à deux roues est représenté connecté par un embout fileté 12 à l'extrémité d'un tuyau souple 13 lui-même relié à une pompe non visible sur le dessin. Le dispositif comporte un corps 14 à l'intérieur duquel est défini un canal d'éjection d'air 16. Celui-ci est réalisé par deux perçages perpendiculaires, un perçage longitudinal 16a débouchant dans l'alésage taraudé 17 dans lequel est vissé l'embout 12 et un perçage transversal 16b. L'orifice 19 de sortie du canal, à l'extrémité du perçage transversal, est défini sur une première surface 20 du corps 14. Une deuxième surface 21 de ce corps, opposée et parallèle constitue une surface d'appui pour une came 22 définie à l'extrémité d'un levier 23. Le corps 14 est recouvert d'un capot 25 définissant avec ladite première surface 20 un logement 27 de forme générale allongée, comportant sur une face 28 parallèle à ladite première surface 20 un orifice 30 pour l'engagement de la valve. Un élément mobile 32 est déplaçable dans le logement 27 pour venir occuper l'une ou l'autre d'au moins deux positions prédéterminées. Cet élément mobile, constituant ici une sorte de coulisseau en forme générale de parallélépipède rectangle, renferme au moins deux embouts de raccordement 33, 34 différents.Referring more particularly to FIGS. 1 to 3, a pump connection device 11 for inflating a two-wheeled vehicle tire is shown connected by a threaded end piece 12 at the end of a flexible pipe 13 itself. - even connected to a pump not visible in the drawing. The device comprises a body 14 inside which is defined an air ejection channel 16. This is produced by two perpendicular bores, a longitudinal bore 16a opening into the threaded bore 17 into which the screw is screwed. end piece 12 and a transverse bore 16b. The outlet outlet 19 of the channel, at the end of the transverse bore, is defined on a first surface 20 of the body 14. A second surface 21 of this body, opposite and parallel constitutes a bearing surface for a defined cam 22 at the end of a lever 23. The body 14 is covered with a cover 25 defining with said first surface 20 a housing 27 of generally elongated shape, comprising on a face 28 parallel to said first surface 20 an orifice 30 for the valve engagement. A mobile element 32 is movable in the housing 27 to come to occupy one or the other of at least two predetermined positions. This movable element, constituting here a kind of slide in the general shape of a rectangular parallelepiped, contains at least two different connection ends 33, 34.

Bien entendu, le nombre de positions prédéterminées est égal au nombre d'embouts de raccordement différents. Pour chaque position prédéterminée, l'un des embouts se trouve intercalé axialement entre l'orifice de sortie 19 du canal et l'orifice 30 dans lequel on introduit la valve.Of course, the number of predetermined positions is equal to the number of different connection tips. For each predetermined position, one of the end pieces is interposed axially between the outlet orifice 19 of the channel and the orifice 30 into which the valve is introduced.

Par ailleurs, un joint d'étanchéité annulaire 36 est agencé autour de l'orifice du canal; il vient en contact avec une face de l'élément mobile formant coulisseau. Les deux embouts de raccordement sont définis parallèlement l'un à l'autre à l'intérieur de ce coulisseau. Plus précisément, ce dernier est constitué de l'assemblage de deux pièces 37, 38 s'emboîtant l'une dans l'autre avec interposition de deux manchons en matériau élastomère 39, 40. Ainsi, la pièce 37 en contact avec ladite première surface 20 du corps 14 comporte un premier passage 44 tubulaire cylindrique et un second passage 42 parallèle au premier, muni d'un insert axial 41. La pièce 38 en contact avec la paroi intérieure du capot 25 comporte un premier passage 43, tubulaire cylindrique, muni d'un épaulement interne, défini dans le prolongement axial du premier passage 39 et un second passage 45 tubulaire cylindrique muni d'un épaulement interne défini dans le prolongement axial du second passage 42. Le manchon 39 en matériau élastiquement déformable, présentant un épaulement interne et un épaulement externe, est intercalé entre lesdits premiers passages des pièces 37 et 38. L'autre manchon 40 en matériau élastiquement déformable, de même nature, tubulaire cylindrique présentant un épaulement interne, est intercalé entre lesdits seconds passages des pièces 37 et 38. En fait, l'agencement qui vient d'être décrit reconstitue, dans une structure de coulisseau, les deux embouts de raccordement 33, 34, différents, normalisés, bien connus. Ces deux embouts de raccordement sont définis parallèlement l'un à l'autre et l'élément mobile 32 en forme de coulisseau peut se déplacer selon un trajet rectiligne dans le logement 27 entre les deux orifices. Chaque embout 33, 34 se trouve donc susceptible d'être mis en service lorsque le coulisseau est dans une position prédéterminée correspondante, à l'intérieur de son logement.Furthermore, an annular seal 36 is arranged around the orifice of the channel; it comes into contact with one face of the movable element forming a slide. The two connection ends are defined parallel to each other inside this slide. More specifically, the latter consists of the assembly of two parts 37, 38 which fit into one another with the interposition of two sleeves made of elastomer material 39, 40. Thus, the part 37 in contact with said first surface 20 of the body 14 has a first cylindrical tubular passage 44 and a second passage 42 parallel to the first, provided with an axial insert 41. The part 38 in contact with the inner wall of the cover 25 comprises a first passage 43, cylindrical tubular, provided an internal shoulder, defined in the axial extension of the first passage 39 and a second cylindrical tubular passage 45 provided with an internal shoulder defined in the axial extension of the second passage 42. The sleeve 39 made of elastically deformable material, having an internal shoulder and an external shoulder, is interposed between said first passages of parts 37 and 38. The other sleeve 40 of elastically deformable material, of the same nature, tubular cylindrical having an internal shoulder, is interposed between said second passages of parts 37 and 38. In fact, the arrangement which has just been described reconstitutes, in a sliding structure, the two connection end pieces 33, 34, different, standardized , well known. These two connection ends are defined parallel to each other and the movable element 32 in the form of a slide can move along a rectilinear path in the housing 27 between the two orifices. Each end piece 33, 34 is therefore capable of being put into service when the slide is in a position predetermined corresponding, inside its housing.

Dans cette position, le manchon en matériau élastiquement déformable 39 ou 40 est susceptible de venir s'appliquer de façon étanche tout autour du corps de la valve qui est introduite dans l'orifice.In this position, the sleeve of elastically deformable material 39 or 40 is capable of being applied in a sealed manner all around the body of the valve which is introduced into the orifice.

Pour améliorer cette jonction, le dispositif comporte en outre un mécanisme de verrouillage coopérant avec l'élément mobile 32 pour comprimer axialement au moins le manchon de l'embout 33 ou 34 en position d'être raccordé à ladite valve. Cette compression axiale de l'embout entraîne sa déformation radialement vers l'intérieur, ce qui permet d'enserrer fermement ladite valve tout en réalisant une jonction parfaitement étanche. Pour ce faire, il est à noter que les deux pièces 37, 38 ne sont pas en butée au repos mais peuvent se déplacer l'une par rapport à l'autre sous l'effet d'un effort tendant à comprimer axialement les manchons 39, 40. L'actionnement de ce même mécanisme de verrouillage provoque également une compression du joint 36 assurant une parfaite étanchéité de l'interface entre le corps 14 et le coulisseau.To improve this junction, the device further comprises a locking mechanism cooperating with the movable element 32 to compress axially at least the sleeve of the end piece 33 or 34 in position to be connected to said valve. This axial compression of the nozzle causes its deformation radially inward, which allows to firmly grip said valve while achieving a perfectly sealed junction. To do this, it should be noted that the two parts 37, 38 are not in abutment at rest but can move relative to each other under the effect of a force tending to compress the sleeves axially 39 , 40. The actuation of the same locking mechanism also causes compression of the seal 36 ensuring perfect sealing of the interface between the body 14 and the slide.

Le mécanisme de verrouillage comporte le levier 27 mentionné plus haut, muni de la came 22, et cet ensemble est agencé pour provoquer un déplacement relatif entre au moins une partie de l'élément mobile 32 et le corps 14 renfermant le canal d'éjection d'air. Pour ce faire, le capot 25 est monté coulissant le long du corps 14 et le levier 23 est articulé audit capot 25 par un axe 49.The locking mechanism comprises the lever 27 mentioned above, provided with the cam 22, and this assembly is arranged to cause a relative displacement between at least part of the movable element 32 and the body 14 containing the ejection channel d 'air. To do this, the cover 25 is slidably mounted along the body 14 and the lever 23 is articulated to said cover 25 by an axis 49.

Le capot comporte également une lumière rectiligne 50 s'étendant parallèlement à la direction de déplacement de l'élément mobile 32 et ce dernier comporte un doigt de manoeuvre 52 latéral traversant ladite lumière. Le coulisseau peut être manoeuvré grâce à ce doigt lorsque le levier 23 occupe la position représentée à la figure 2. On peut ainsi sélectionner l'embout de raccordement convenable.The cover also comprises a rectilinear opening 50 extending parallel to the direction of movement of the movable element 32 and the latter comprises a lateral actuating finger 52 passing through said opening. The slide can be maneuvered using this finger when the lever 23 occupies the position shown in FIG. 2. It is thus possible to select the suitable connection endpiece.

Lorsque le levier occupe la position représentée à la figure 3, l'élément mobile 32 formant coulisseau est comprimé à l'intérieur de son logement en raison du déplacement du capot 25 par rapport au corps 14. Les deux pièces constituant le coulisseau se rapprochent l'une de l'autre, ce qui provoque une déformation des manchons élastiquement déformables 39, 40, comme cela est représenté sur la figure 3. En particulier, la déformation du manchon 40 de l'embout 34 en position "utilisation" se traduit par un serrage étanche et ferme sur une valve (non représentée) introduite dans l'orifice 30.When the lever occupies the position shown in Figure 3, the movable member 32 forming a slide is compressed inside its housing due to the displacement of the cover 25 relative to the body 14. The two parts constituting the slide come closer to one another, which causes a deformation of the elastically deformable sleeves 39, 40, as shown in FIG. 3. In particular, the deformation of the sleeve 40 of the end piece 34 in the "use" position results in a tight and firm tightening on a valve (not shown) introduced into the orifice 30.

Sur les figures 4 à 6, on a représenté une variante d'un dispositif de raccordement 60, celui-ci étant monté directement à l'extrémité d'un cylindre de pompe 61. La sortie de la pompe se prolonge par un corps 62 contenant le canal d'éjection d'air 63 dans lequel est en outre installé un clapet anti-retour à bille 64. La course de la bille est limitée par une butée 65 s'étendant axialement dans ledit canal.In Figures 4 to 6, there is shown a variant of a connection device 60, this being mounted directly at the end of a pump cylinder 61. The outlet of the pump is extended by a body 62 containing the air ejection channel 63 in which is also installed a non-return ball valve 64. The stroke of the ball is limited by a stop 65 extending axially in said channel.

Selon cette variante, l'élément mobile 68 précité comporte une partie rotative montée à l'intérieur d'une cavité 67 dans laquelle débouche le canal d'éjection. On remarque que l'orifice de sortie 69 du canal d'éjection d'air admet le même axe que l'orifice 70 d'introduction de la valve. La partie rotative comporte un conduit transversal 72 incorporant deux embouts de raccordement différents 73, 74, analogues à ceux représentés sur les figures 2 et 3. Ces deux embouts sont agencés axialement en sens inverse dans le prolongement l'un de l'autre. Ils s'étendent ainsi globalement entre l'orifice de sortie 69 du canal et l'orifice 70 d'introduction de la valve. Ce conduit est constitué par une pièce centrale 75 comportant d'un côté un passage tubulaire cylindrique et de l'autre côté un passage muni d'un insert axial et par deux manchons en matériau élastiquement déformable 77, 78 analogues aux manchons du mode de réalisation précédent et s'étendant axialement de part et d'autre de la pièce 75.According to this variant, the above-mentioned mobile element 68 comprises a rotary part mounted inside a cavity 67 into which the ejection channel opens. Note that the outlet orifice 69 of the air ejection channel has the same axis as the orifice 70 for introducing the valve. The rotary part comprises a transverse conduit 72 incorporating two different connection end pieces 73, 74, similar to those shown in FIGS. 2 and 3. These two end pieces are arranged axially in opposite directions in the extension of one another. They thus extend generally between the outlet orifice 69 of the channel and the orifice 70 for introducing the valve. This conduit is constituted by a central part 75 comprising on one side a cylindrical tubular passage and on the other side a passage provided with an axial insert and by two sleeves of elastically deformable material 77, 78 similar to the sleeves of the embodiment preceding and extending axially on either side of the part 75.

Le conduit 72 défini ci-dessus constitue dans son ensemble un guide pour deux éléments globalement semi-cylindriques 80, 81, montés coulissant à l'extérieur du conduit transversal et sollicités en sens opposés par des ressorts 84 intercalés entre eux. La surface extérieure, semi-cylindrique, de chaque élément 80, 81 comporte des nervures 86 ou une autre configuration équivalente.The conduit 72 defined above as a whole constitutes a guide for two generally semi-cylindrical elements 80, 81, mounted to slide outside the transverse duct and biased in opposite directions by springs 84 interposed between them. The outer, semi-cylindrical surface of each element 80, 81 has ribs 86 or another equivalent configuration.

L'ensemble constitué par le conduit 72 et les deux éléments semi-cylindriques 80, 81 est monté entre deux pièces de serrage susceptibles de se rapprocher l'une de l'autre sous l'action du levier 88, muni d'une came, en contact avec le corps 62, en comprimant l'ensemble suivant la direction axiale définie par les deux orifices 69, 70.The assembly constituted by the conduit 72 and the two semi-cylindrical elements 80, 81 is mounted between two clamping parts capable of approaching one another under the action of the lever 88, provided with a cam, in contact with the body 62, compressing the assembly in the axial direction defined by the two orifices 69, 70.

Plus précisément, l'une des pièces de serrage est constituée par le corps 62 abritant le canal d'éjection d'air 63 et présentant une surface concave 90 dans laquelle se loge en partie l'ensemble constitué du conduit 72 et des deux éléments semi-cylindriques 80, 81. L'autre pièce de serrage 92 est munie de deux bras 93 coulissant à l'intérieur de deux rainures correspondantes dudit corps 62. Le levier 88 est articulé par un axe 95 entre les deux extrémités de ces bras. L'orifice 70 d'introduction de la valve est pratiqué dans cette seconde pièce de serrage 92, laquelle comporte également une surface concave 97 enveloppant une partie dudit ensemble constitué par le conduit et les deux éléments semi-cylindriques.More specifically, one of the clamping parts is constituted by the body 62 housing the air ejection channel 63 and having a concave surface 90 in which is housed in part the assembly consisting of the conduit 72 and the two semi elements -cylindrical 80, 81. The other clamping part 92 is provided with two arms 93 sliding inside two corresponding grooves of said body 62. The lever 88 is articulated by an axis 95 between the two ends of these arms. The orifice 70 for introducing the valve is made in this second clamping part 92, which also includes a concave surface 97 enveloping part of said assembly constituted by the conduit and the two semi-cylindrical elements.

Dans la position illustrée à la figure 5, l'ensemble 72, 80, 81 précité peut être tourné dans son logement défini entre les deux pièces de serrage 62, 92, de façon à pouvoir mettre l'un ou l'autre des deux embouts de raccordement 73 ou 74 en position de service. Lorsqu'un embout est en position de service, le manchon en matériau élastiquement déformable de l'autre embout est en position d'assurer l'étanchéité entre l'orifice 69 du canal 63 et ledit conduit 72. La manoeuvre du levier provoque le rapprochement des deux pièces de serrage et la déformation souhaitée des deux manchons 77, 78 en matériau élastiquement déformable.In the position illustrated in FIG. 5, the above-mentioned assembly 72, 80, 81 can be rotated in its housing defined between the two clamping pieces 62, 92, so as to be able to put one or the other of the two end pieces 73 or 74 in the service position. When an end piece is in the service position, the sleeve of elastically deformable material of the other end piece is in a position to seal between the orifice 69 of the channel 63 and said conduit 72. The operation of the lever causes the approximation of the two clamping pieces and the desired deformation of the two sleeves 77, 78 of elastically deformable material.

Claims (11)

Dispositif de raccordement de pompe pour le gonflage d'un pneumatique, caractérisé en ce qu'il comporte un canal d'éjection d'air (16, 63) susceptible d'être raccordé à ladite pompe et un élément mobile (32, 68) renfermant au moins deux embouts de raccordement différents (33, 34 - 73, 74), et en ce que ledit élément mobile est déplaçable dans un logement pour venir occuper l'une ou l'autre d'au moins deux positions prédéterminées correspondantes dans laquelle l'un des embouts se trouve en communication avec ledit canal, en aval de celui-ci et en position d'être raccordé à une valve de pneumatique.Pump connection device for inflating a tire, characterized in that it comprises an air ejection channel (16, 63) capable of being connected to said pump and a movable element (32, 68) containing at least two different connection end pieces (33, 34 - 73, 74), and in that said movable element is movable in a housing to come occupy one or the other of at least two corresponding predetermined positions in which one of the end pieces is in communication with said channel, downstream of the latter and in position to be connected to a tire valve. Dispositif de raccordement selon la revendication 1, dans lequel chaque embout comporte un manchon (39, 40 - 77, 78) en matériau élastiquement déformable susceptible de venir s'appliquer contre la valve, caractérisé en ce qu'il comporte en outre un mécanisme de verrouillage (23, 88) coopérant avec ledit élément mobile pour comprimer axialement au moins le manchon de l'embout en position d'être raccordé à une valve, la compression axiale de l'embout entraînant sa déformation radialement vers l'intérieur pour venir enserrer ladite valve de façon étanche.Connection device according to claim 1, in which each end piece comprises a sleeve (39, 40 - 77, 78) of elastically deformable material capable of coming to bear against the valve, characterized in that it further comprises a mechanism for locking (23, 88) cooperating with said movable element to compress axially at least the sleeve of the endpiece in position to be connected to a valve, the axial compression of the endpiece causing its deformation radially inwardly to come to grip said valve sealingly. Dispositif de raccordement selon la revendication 2, caractérisé en ce que ledit mécanisme de verrouillage comporte un levier (22) muni d'une came, agencé pour provoquer un déplacement relatif entre au moins une partie dudit élément mobile et un autre élément (14) renfermant ledit canal d'éjection d'air.Connection device according to claim 2, characterized in that said locking mechanism comprises a lever (22) provided with a cam, arranged to cause a relative displacement between at least a part of said movable element and another element (14) containing said air ejection channel. Dispositif de raccordement selon la revendication 3, caractérisé en ce qu'un joint d'étanchéité annulaire (36) est agencé autour d'un orifice dudit canal défini dans ledit autre élément (14), ce joint étant comprimé sous l'actionnement dudit levier.Connection device according to claim 3, characterized in that an annular seal (36) is arranged around an orifice of said channel defined in said other element (14), this seal being compressed under the actuation of said lever . Dispositif de raccordement selon l'une des revendications précédentes, caractérisé en ce que ledit élément mobile (32) est un coulisseau déplaçable selon un trajet rectiligne dans un logement (27), ledit canal d'éjection débouchant dans ce logement pour être mis en communication avec l'un des embouts lorsque ledit coulisseau est placé dans une position prédéterminée correspondante.Connection device according to one of the preceding claims, characterized in that said movable element (32) is a slide movable according to a straight path in a housing (27), said ejection channel opening into this housing to be put in communication with one of the end pieces when said slide is placed in a corresponding predetermined position. Dispositif de raccordement selon l'une des revendications 1 à 4, caractérisé en ce ledit élément mobile (68) comporte une partie rotative montée à l'intérieur d'une cavité (67) dans laquelle débouche ledit canal d'éjection.Connection device according to one of claims 1 to 4, characterized in that said movable element (68) comprises a rotary part mounted inside a cavity (67) into which opens said ejection channel. Dispositif de raccordement selon la revendication 6, caractérisé en ce que ladite partie rotative comporte un conduit transversal (72) incorporant deux embouts de raccordement (73, 74) différents précités, agencés axialement en sens inverses dans le prolongement l'un de l'autre.Connection device according to Claim 6, characterized in that the said rotary part comprises a transverse duct (72) incorporating two aforementioned different connection ends (73, 74), arranged axially in opposite directions in the extension of one another . Dispositif de raccordement selon la revendication 7, caractérisé en ce que ledit conduit (72) est inséré entre deux éléments (80, 81) globalement semi-cylindriques, montés coulissant à l'extérieur dudit conduit transversal (72) et sollicités en directions opposées par des ressorts (84) intercalés entre eux, la surface extérieure semi-cylindrique de chaque élément comportant des nervures (86) ou une autre configuration de manoeuvre.Connection device according to claim 7, characterized in that said duct (72) is inserted between two generally semi-cylindrical elements (80, 81), mounted to slide outside of said transverse duct (72) and urged in opposite directions by springs (84) interposed therebetween, the semi-cylindrical outer surface of each element having ribs (86) or another operating configuration. Dispositif de raccordement selon la revendication 9, caractérisé en ce que l'ensemble constitué par ledit conduit (72) et lesdits deux éléments (80, 81) est monté entre deux pièces de serrage (62, 92) susceptibles de se rapprocher l'une de l'autre sous l'action dudit levier (88), comprimant ledit ensemble suivant une direction prédéterminée.Connection device according to claim 9, characterized in that the assembly constituted by said conduit (72) and said two elements (80, 81) is mounted between two clamping parts (62, 92) capable of approaching one on the other under the action of said lever (88), compressing said assembly in a predetermined direction. Dispositif de raccordement selon l'ensemble des revendications 2 et 5, caractérisé en ce que ledit canal est défini dans un corps (14) présentant deux surfaces opposées, l'orifice de sortie dudit canal étant défini sur une première surface (20) et la came (82) du levier étant en contact avec une seconde surface (21) et en ce que ledit logement abritant ledit élément mobile (32) est défini entre ladite première surface et un capot (25) coulissant le long dudit corps, ledit levier étant articulé audit capot.Connection device according to all of claims 2 and 5, characterized in that said channel is defined in a body (14) having two opposite surfaces, the outlet orifice of said channel being defined on a first surface (20) and the cam (82) of the lever being in contact with a second surface (21) and in that said housing housing said movable element (32) is defined between said first surface and a cover (25) sliding along said body, said lever being articulated to said cover. Dispositif de raccordement selon la revendication 10, caractérisé en ce que ledit élément mobile comporte un doigt de manoeuvre (52) latéral traversant une lumière (50) dudit capot (25).Connection device according to claim 10, characterized in that said movable element comprises a lateral operating finger (52) passing through a lumen (50) of said cover (25).
EP96402529A 1995-11-28 1996-11-25 Pump connection device Expired - Lifetime EP0777049B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9514081A FR2741695B1 (en) 1995-11-28 1995-11-28 PUMP CONNECTION DEVICE
FR9514081 1995-11-28

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EP0777049A1 true EP0777049A1 (en) 1997-06-04
EP0777049B1 EP0777049B1 (en) 2002-04-10

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US (1) US5749392A (en)
EP (1) EP0777049B1 (en)
JP (1) JPH09280173A (en)
DE (2) DE777049T1 (en)
ES (1) ES2101671T3 (en)
FR (1) FR2741695B1 (en)

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FR2810387A1 (en) * 2000-06-19 2001-12-21 Zefal Rapid connector for the joining of a bicycle pump to a pneumatic tyre for its inflation where the clamping operation of the adapter to valve is contained within the outline of the connector
FR2810718A1 (en) * 2000-06-21 2001-12-28 Scott Wu Pumping device for inflating bicycle tires, has pivotal tube with cam seat secured to main body and rotatably received in end of head which communicates with air passage of main body
CN105299313A (en) * 2014-07-15 2016-02-03 双馀实业有限公司 Rotary switching type air nozzle head
CN105299313B (en) * 2014-07-15 2017-10-10 双馀实业有限公司 Rotary switching type air nozzle head
FR3025456A1 (en) * 2014-09-04 2016-03-11 Beto Engineering & Marketing ROTATING ADAPTER FOR WHEEL VALVE

Also Published As

Publication number Publication date
FR2741695A1 (en) 1997-05-30
ES2101671T1 (en) 1997-07-16
DE69620550D1 (en) 2002-05-16
EP0777049B1 (en) 2002-04-10
ES2101671T3 (en) 2002-10-16
JPH09280173A (en) 1997-10-28
FR2741695B1 (en) 1998-02-06
DE69620550T2 (en) 2002-11-21
DE777049T1 (en) 1997-12-18
US5749392A (en) 1998-05-12

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