EP0777049B1 - Pump connection device - Google Patents
Pump connection device Download PDFInfo
- Publication number
- EP0777049B1 EP0777049B1 EP96402529A EP96402529A EP0777049B1 EP 0777049 B1 EP0777049 B1 EP 0777049B1 EP 96402529 A EP96402529 A EP 96402529A EP 96402529 A EP96402529 A EP 96402529A EP 0777049 B1 EP0777049 B1 EP 0777049B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connecting device
- movable element
- passage
- lever
- 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.)
- Expired - Lifetime
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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
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- 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 device for pump connection for inflating a tire; it relates more particularly to an improvement allowing the pump to be used for tires of various origins including type valves different.
- valve may be of a type or of another.
- the most used valves are basically of two types known under the names "SCHRADER” and "PRESTA” sales representatives.
- SCHRADER a sleeve of elastomeric material likely to surround the valve body with a relative tightness.
- the nozzle used is difficult to subject in a truly waterproof manner to the valve.
- the unused tip is neutralized by an activated internal shutter system pneumatically at the first pump stroke. This system is of a high cost price and is not of an operation 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 used to select the connection piece suitable.
- Another object of the invention is to propose a system even more sophisticated in which the tip of selected connection can be secured very tightly and valve.
- the document FR 544 366 describes a pump connection device comprising two different connection end pieces integral with the same element mounted by a conical swivel connection at the end of a duct forming air ejection channel.
- connection end pieces are poorly protected and the connection itself is difficult to perform because it requires screwing in a threaded cap.
- the invention overcomes these drawbacks.
- the invention therefore relates to a connection device pump for inflating a tire, comprising an ejection channel air capable of being connected to said pump and a movable element containing at least two different connection ends, and likely to occupy two predetermined positions in which one of the end pieces is in communication with said channel, respectively, downstream of it, each end piece comprising a sleeve of elastically deformable material, characterized in that said movable element is movable in a housing to come and occupy one or the other of said predetermined positions, in that each endpiece is in position to be connected to a valve when said element mobile occupies a corresponding predetermined position and in that it further includes a locking mechanism cooperating with said element movable to axially compress at least the sleeve of the nozzle in position to be connected to said valve.
- the movable element can be a slide movable along a path straight in a housing.
- the mobile element can have a rotating part mounted inside a cavity in which opens said ejection channel.
- the device for connection in which each end piece has a sleeve of material elastically deformable likely to come to bear against the valve is characterized in that it further comprises a locking mechanism cooperating with said movable element to compress, axially, at least the nozzle sleeve in position to be connected to a valve, compression axial of the end piece causing its deformation radially inward to enclose 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 within which is defined an air ejection duct 16.
- the latter is formed by two perpendicular bores has a longitudinal bore 16 opening into the threaded bore 17 into which is screwed the end 12 and a transverse bore 16 b .
- 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 found 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; he comes in contact with one face of the movable element forming a slide.
- the two connection nipples are defined in parallel to each other inside this slide. More precisely, the latter consists of the assembly of two parts 37, 38 fitting into each other with interposition of two sleeves made of elastomeric material 39, 40.
- the part 37 in contact with said first surface 20 of the body 14 has a first passage 44 cylindrical tubular 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 with a shoulder internal, 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 extension axial of the second passage 42.
- the sleeve 39 made of material elastically deformable, with 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 kind, cylindrical tubular with 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 slide shape can move along a path rectilinear in the housing 27 between the two orifices.
- Each end piece 33, 34 is therefore likely to be put in service when the slide is in a position predetermined corresponding, within its housing.
- the device comprises furthermore a locking mechanism cooperating with the movable element 32 for compressing axially at least the end sleeve 33 or 34 in position to be connected to said valve.
- This axial compression of the tip causes its deformation radially inward, which allows to firmly grip said valve while performing a perfectly sealed junction.
- the two parts 37, 38 are not in abutment at the rest but can move relative to each other under the effect of a force tending to compress axially the sleeves 39, 40.
- the actuation of this same mechanism locking 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, fitted with cam 22, and this assembly is arranged to cause relative displacement between the at least part of the movable element 32 and the body 14 enclosing the air ejection channel.
- 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 includes a rectilinear light 50 extending parallel to the direction of travel of the movable element 32 and the latter comprises a finger lateral maneuver 52 passing through said lumen.
- the slide can be operated using this finger when the lever 23 occupies the position shown in Figure 2. We can thus select the connection piece suitable.
- FIGS 4 to 6 show a variant a connection device 60, the latter 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 further installed a ball check valve 64.
- the ball stroke is limited by a stop 65 extending axially in said channel.
- the aforementioned mobile element 68 has a rotating part mounted inside a cavity 67 into which the ejection channel opens.
- the outlet port 69 of the ejection channel air admits the same axis as the orifice 70 for introducing the valve.
- the rotating part has a duct transverse 72 incorporating two connection end pieces different 73, 74, similar to those represented on the Figures 2 and 3. These two tips are arranged axially in reverse in line with each other. 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 passage with an axial insert and two sleeves of elastically deformable material 77, 78 similar to sleeves of the previous embodiment and extending axially on either side of the part 75.
- the conduit 72 defined above constitutes in its together a guide for two generally semi-cylindrical elements 80, 81, mounted sliding outside the transverse duct and stressed in opposite directions by springs 84 interposed between them.
- the outer surface, semi-cylindrical, 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 likely to approach one of the other under the action of lever 88, provided with a cam, in contact with the body 62, compressing the following assembly the axial direction defined by the two orifices 69, 70.
- one of the clamping parts is constituted by the body 62 housing the ejection channel 63 and having a concave surface 90 in which is partially housed in the assembly consisting of conduit 72 and two semi-cylindrical elements 80, 81.
- the other part of clamping 92 is provided with two arms 93 sliding at the interior of two corresponding grooves of said body 62.
- the lever 88 is articulated by an axis 95 between the two ends of these arms.
- the opening 70 for introducing the valve is made in this second clamping part 92, which also has a concave surface 97 enveloping part of said assembly constituted by the duct and the two semi-cylindrical elements.
- the assembly 72, 80, 81 above can be turned in its housing defined between the two clamping pieces 62, 92, so as to ability to put either of the two end caps connection 73 or 74 in service position.
- the sleeve made of material elastically deformable of the other end piece is in position sealing between port 69 of channel 63 and said conduit 72.
- the operation of the lever causes the approximation of the two clamping parts and the deformation desired of the two sleeves 77, 78 made of material elastically deformable.
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)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Reciprocating Pumps (AREA)
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 device for pump connection for inflating a tire; it relates more particularly to an improvement allowing the pump to be used for tires of various origins including type valves different.
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 example, it is necessary to periodically re-inflate the tires. This can be done from a small power compressor or 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 connaít 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 connection from the source of compressed air to the tire valve. according to the origin of the latter, the valve may be of a type or of another. For example, in the field of tires two-wheeled vehicle, the most used valves are basically of two types known under the names "SCHRADER" and "PRESTA" sales representatives. We know a pump having two different fixed connection ends, each end piece comprising a sleeve of elastomeric material likely to surround the valve body with a relative tightness.
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 that the connection device is rigidly secured to the pump body, the nozzle used is difficult to subject in a truly waterproof manner to the valve. In addition, in the known system, the unused tip is neutralized by an activated internal shutter system pneumatically at the first pump stroke. This system is of a high cost price and is not of an operation 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 used to select the connection piece suitable.
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 a system even more sophisticated in which the tip of selected connection can be secured very tightly and valve.
Le document FR 544 366 décrit un dispositif de raccordement de pompe comportant deux embouts de raccordement différents solidaires d'un même élément monté par un raccordement conique pivotant à l'extrémité d'un conduit formant canal d'éjection d'air. Dans un tel dispositif les embouts de raccordement sont mal protégés et le raccordement lui-même est difficile à réaliser, car il nécessite le vissage d'un capuchon fileté.The document FR 544 366 describes a pump connection device comprising two different connection end pieces integral with the same element mounted by a conical swivel connection at the end of a duct forming air ejection channel. In such a device the connection end pieces are poorly protected and the connection itself is difficult to perform because it requires screwing in a threaded cap.
L'invention permet de surmonter ces inconvénients.The invention overcomes these drawbacks.
En premier lieu, l'invention concerne donc un dispositif de raccordement de pompe pour le gonflage d'un pneumatique, comportant 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 susceptible d'occuper deux positions prédéterminées dans lesquelles l'un des embouts se trouve en communication avec ledit canal, respectivement, en aval de celui-ci, chaque embout comportant un manchon en matériau élastiquement déformable, caractérisé en ce que ledit élément mobile est déplaçable dans un logement pour venir occuper l'une ou l'autre desdites positions prédéterminées, en ce que chaque embout est en position d'être raccordé à une valve lorsque ledit élément mobile occupe une position prédéterminée correspondante et 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 ladite valve.Firstly, the invention therefore relates to a connection device pump for inflating a tire, comprising an ejection channel air capable of being connected to said pump and a movable element containing at least two different connection ends, and likely to occupy two predetermined positions in which one of the end pieces is in communication with said channel, respectively, downstream of it, each end piece comprising a sleeve of elastically deformable material, characterized in that said movable element is movable in a housing to come and occupy one or the other of said predetermined positions, in that each endpiece is in position to be connected to a valve when said element mobile occupies a corresponding predetermined position and in that it further includes a locking mechanism cooperating with said element movable to axially compress at least the sleeve of the nozzle in position to be connected to said 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 path straight in a housing. According to another variant, the mobile element can have a rotating part mounted inside a cavity in which opens said ejection channel.
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 entraínant sa déformation radialement vers l'intérieur pour venir enserrer ladite valve de façon étanche.According to another advantageous characteristic of the invention, the device for connection in which each end piece has a sleeve of material elastically deformable likely to come to bear against the valve is characterized in that it further comprises a locking mechanism cooperating with said movable element to compress, axially, at least the nozzle sleeve in position to be connected to a valve, compression axial of the end piece causing its deformation radially inward to enclose said valve tightly.
L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront 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.
- 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. With particular reference to FIGS. 1 to 3, a pump connection device 11 for inflating a two-wheeled vehicle tire is shown connected by a threaded
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
found interposed axially between the
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'emboítant 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
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 material sleeve elastically deformable 39 or 40 is likely to come apply tightly 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 entraíne
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 comprises
furthermore a locking mechanism cooperating with
the
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
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 includes a
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 the
Figure 3, the
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.Figures 4 to 6 show a variant
a
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 aforementioned
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
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
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
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 dû 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
Claims (10)
- A pump connecting device for inflating a pneumatic tyre comprising an air ejection passage (16, 63) capable of being connected to said pump and a movable element (32, 68) containing at least two different connecting nozzles (33, 34 - 73, 74), and capable of occupying two predetermined positions in which one of the nozzles is in communication with said passage respectively downstream thereof, each nozzle comprising a sleeve portion of elastically deformable material, characterised in that said movable element is displaceable in a housing to occupy one or other of said predetermined positions, that each nozzle is in a position of being connected to a valve when said movable element occupies a predetermined corresponding position and that it further comprises a locking mechanism (23, 88) co-operating with said movable element for axially compressing at least the sleeve portion of the nozzle in the position of being connected to a valve.
- A connecting device according to claim 1 characterised in that said locking mechanism comprises a lever (22) provided with a cam which is arranged to cause a relative displacement between at least a part of said movable element and another element (14) containing said air ejection passage.
- A connecting device according to claim 2 characterised in that an annular seal (36) is arranged around an orifice of said passage defined in said other element (14), said seal being compressed under the actuation of said lever.
- A connecting device according to one of the preceding claims characterised in that said movable element (32) is a slider displaceable along a rectilinear path of movement in a housing (27), said ejection passage opening into said housing to be communicated with one of the nozzles when said slider is disposed in a predetermined corresponding position.
- A connecting device according to one of claims 1 to 3 characterised in that said movable element (68) comprises a rotatable part mounted in the interior of a cavity (67) into which said ejection passage opens.
- A connecting device according to claim 5 characterised in that said rotatable part comprises a transverse conduit (72) incorporating two said different connecting nozzles (73, 74) arranged axially in opposite directions in line with each other.
- A connecting device according to claim 6 characterised in that said conduit (72) is inserted between two generally semicylindrical elements (80, 81) mounted slidably at the outside of said transverse conduit (72) and urged in opposite directions by springs (84) interposed between them, the external semicylindrical surface of each element comprising ribs (86) or another operating configuration.
- A connecting device according to claim 7 characterised in that the assembly formed by said conduit (72) and said two elements (80, 81) is mounted between two gripping portions (62, 92) which are capable of being moved towards each other under the action of said lever (88), compressing said assembly in a predetermined direction.
- A connecting device according to both of claims 1 and 4 characterised in that said passage is defined in a body (14) having two opposed surfaces, the outlet orifice of said passage being defined on a first surface (20) and the cam (82) of the lever being in contact with a second surface (21), and that said housing accommodating said movable element (32) is defined between said first surface and a cap (25) slidable along said body, said lever being pivotably mounted to said cap.
- A connecting device according to claim 9 characterised in that said movable element comprises a lateral operating finger (52) passing through an opening (50) in said cap (25).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9514081 | 1995-11-28 | ||
FR9514081A FR2741695B1 (en) | 1995-11-28 | 1995-11-28 | PUMP CONNECTION DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0777049A1 EP0777049A1 (en) | 1997-06-04 |
EP0777049B1 true EP0777049B1 (en) | 2002-04-10 |
Family
ID=9484961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96402529A Expired - Lifetime EP0777049B1 (en) | 1995-11-28 | 1996-11-25 | Pump connection device |
Country Status (6)
Country | Link |
---|---|
US (1) | US5749392A (en) |
EP (1) | EP0777049B1 (en) |
JP (1) | JPH09280173A (en) |
DE (2) | DE777049T1 (en) |
ES (1) | ES2101671T3 (en) |
FR (1) | FR2741695B1 (en) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5921269A (en) * | 1997-06-30 | 1999-07-13 | Wu; Scott | Tire inflator |
US5819781A (en) * | 1997-07-28 | 1998-10-13 | Wu; Scott | Pumping device with a pivotal lever for various valves |
US5960815A (en) * | 1997-07-30 | 1999-10-05 | Wang; Lopin | Air nozzle of inflating device |
US6146116A (en) * | 1997-10-21 | 2000-11-14 | Wu; Scott | Pumping device with a pivotal lever for various valves |
US5975109A (en) * | 1998-07-24 | 1999-11-02 | Wu; Scott | Retaining pin pumper devices of the type having a pivotal lever for various valves |
WO2000011384A1 (en) * | 1998-08-18 | 2000-03-02 | Bell Sports, Inc. | Air pump valve head for both schrader and presta valves |
US6076544A (en) * | 1999-08-18 | 2000-06-20 | Bell Sports, Inc. | Air pump valve head for both schrader and presta valves |
US6102063A (en) * | 1998-08-18 | 2000-08-15 | Bell Sports, Inc. | Air pump valve head for gripping both schrader and presta valves |
DE29905501U1 (en) * | 1999-03-25 | 1999-07-08 | SKS Metaplast Scheffer-Klute GmbH, 59846 Sundern | Pump head |
US6105600A (en) * | 1999-10-01 | 2000-08-22 | Wang; Lopin | Inflation device comprising a connection head compatible with inflation valves of U.S. type and french type |
US6260572B1 (en) * | 2000-03-28 | 2001-07-17 | Scott Wu | Valve-coupling device for an inflation device |
US6328057B1 (en) * | 2000-04-24 | 2001-12-11 | Lo-Pin Wang | Air valve connection head of hand-held air pump |
US6289920B1 (en) * | 2000-04-24 | 2001-09-18 | Lo-Pin Wang | Air pump nozzle capable of adjusting automatically to fit inflation valves of various types |
FR2810387B1 (en) * | 2000-06-19 | 2002-09-06 | Zefal | QUICK CONNECTOR FOR INFLATING A TIRE AND BICYCLE PUMP COMPRISING SUCH A CONNECTOR |
FR2810718B1 (en) * | 2000-06-21 | 2002-09-27 | Scott Wu | PUMPING DEVICE WITH AN INTERIOR PIVOTING TUBE FOR DIFFERENT VALVES |
US7178549B2 (en) * | 2002-04-19 | 2007-02-20 | Scott Wu | Valve coupling device for pump |
US6978796B2 (en) * | 2002-09-25 | 2005-12-27 | Morris Ostrowiecki | Universal air valve connector |
US6904932B1 (en) | 2002-10-01 | 2005-06-14 | Trek Bicycle Corporation | Pump valve adapter |
US6843270B1 (en) * | 2003-12-22 | 2005-01-18 | Lo-Pin Wang | Connector of inflating device capable of coupling various types of valve stems |
TWI284721B (en) * | 2006-03-07 | 2007-08-01 | Lo-Pin Wang | Gas jet joint of a gas inflation device |
US7562671B2 (en) * | 2006-04-10 | 2009-07-21 | Lo-Pin Wang | Auto-switching valve connector for air pump |
US20090116973A1 (en) * | 2007-11-02 | 2009-05-07 | Scott Wu | Pump for Shock Absorbers |
US20090229677A1 (en) * | 2008-03-11 | 2009-09-17 | Lopin Wang | Pump connector device for different valves |
DE102008015533B4 (en) * | 2008-03-25 | 2010-03-04 | Lopin Wang | Pump connection unit for different valves |
TWI391588B (en) * | 2009-12-08 | 2013-04-01 | Chang Hui Lin | Air faucet attachment |
TWI456115B (en) * | 2012-03-06 | 2014-10-11 | Beto Engineering & Marketing | Inflator with universal turning nozzle |
CN104006251A (en) * | 2014-06-03 | 2014-08-27 | 河南科技大学 | Rotating handle type three-head-splitting integrated inflating valve connector |
TWI540259B (en) * | 2014-07-15 | 2016-07-01 | Rotary switch type nozzle head | |
FR3025456B1 (en) * | 2014-09-04 | 2016-09-09 | Beto Eng And Marketing Co Ltd | ROTATING ADAPTER FOR WHEEL VALVE |
US9297464B1 (en) * | 2014-09-11 | 2016-03-29 | Beto Engineering & Marketing Co., Ltd. | Air pump having pivotal attachment |
US9989180B2 (en) | 2016-03-22 | 2018-06-05 | Beto Engineering & Marketing Co. Ltd. | Attachment for air valve |
US9989179B2 (en) | 2016-03-22 | 2018-06-05 | Beto Engineering & Marketing Co., Ltd. | Attachment for different air valve |
US9702471B1 (en) | 2016-03-24 | 2017-07-11 | Beto Engineering & Marketing Co., Ltd. | Attachment for different air valve |
USD969876S1 (en) | 2020-12-11 | 2022-11-15 | Milwaukee Electric Tool Corporation | Inflator |
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DE380975C (en) * | 1921-08-14 | 1923-09-14 | Wilhelm Plass | Connection of the bicycle air pump with the tire valve |
FR544366A (en) * | 1921-10-21 | 1922-09-21 | Boyce Motor Accessories Ltd | Connector for inflating pneumatic tires and other objects |
US1854797A (en) * | 1929-06-20 | 1932-04-19 | Schraders Son Inc | Tire valve connection |
FR983471A (en) * | 1949-01-29 | 1951-06-25 | Device for facilitating the inflation of twin tires of motor vehicles | |
US2778388A (en) * | 1953-03-31 | 1957-01-22 | Allied Steel And Conveyors Inc | Tire inflating machine |
US3142328A (en) * | 1962-06-28 | 1964-07-28 | Us Rubber Co | Tire inflation tool |
US3498321A (en) * | 1967-10-16 | 1970-03-03 | Gen Tire & Rubber Co | Self-sealing valve assembly |
FR2180164A5 (en) * | 1972-04-11 | 1973-11-23 | Poutrait Morin | |
US4193429A (en) * | 1976-06-24 | 1980-03-18 | Uniroyal | Pneumatic tire inflation and method |
US4765358A (en) * | 1986-09-02 | 1988-08-23 | The Goodyear Tire & Rubber Company | Inflation valve for a dual chamber tire |
DE3819771A1 (en) * | 1987-12-18 | 1989-07-06 | Karl Scheffer Klute Gmbh & Co | HAND AIR PUMP FOR TWO-WHEEL TIRES |
US5379796A (en) * | 1994-02-23 | 1995-01-10 | Wang; Lopin | Air pump head capable of engaging tire air valve in twist-locking manner |
US5638865A (en) * | 1995-06-19 | 1997-06-17 | Wu; Scott | Hand pump attachment member for engaging with different tire valves |
US5645100A (en) * | 1995-07-31 | 1997-07-08 | Chuang; Louis | Hand pump for engaging with different tire valves |
US5666990A (en) * | 1995-11-06 | 1997-09-16 | Wu; Scott | Attachment member for engaging with different tire valves |
US5683234A (en) * | 1996-11-18 | 1997-11-04 | Chuang; Louis | Hand pump apparatus having two pumping strokes and having an attachment member for engaging with different tire valves |
-
1995
- 1995-11-28 FR FR9514081A patent/FR2741695B1/en not_active Expired - Fee Related
-
1996
- 1996-11-25 DE DE0777049T patent/DE777049T1/en active Pending
- 1996-11-25 EP EP96402529A patent/EP0777049B1/en not_active Expired - Lifetime
- 1996-11-25 DE DE69620550T patent/DE69620550T2/en not_active Expired - Fee Related
- 1996-11-25 ES ES96402529T patent/ES2101671T3/en not_active Expired - Lifetime
- 1996-11-28 JP JP8318218A patent/JPH09280173A/en active Pending
- 1996-11-29 US US08/753,728 patent/US5749392A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2741695A1 (en) | 1997-05-30 |
EP0777049A1 (en) | 1997-06-04 |
DE69620550D1 (en) | 2002-05-16 |
ES2101671T3 (en) | 2002-10-16 |
DE69620550T2 (en) | 2002-11-21 |
JPH09280173A (en) | 1997-10-28 |
FR2741695B1 (en) | 1998-02-06 |
ES2101671T1 (en) | 1997-07-16 |
DE777049T1 (en) | 1997-12-18 |
US5749392A (en) | 1998-05-12 |
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