WO2007127979A2 - Raccord rapide pour fluide avec support de joint intégré obtenu par moulage multi-matières - Google Patents

Raccord rapide pour fluide avec support de joint intégré obtenu par moulage multi-matières Download PDF

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Publication number
WO2007127979A2
WO2007127979A2 PCT/US2007/067786 US2007067786W WO2007127979A2 WO 2007127979 A2 WO2007127979 A2 WO 2007127979A2 US 2007067786 W US2007067786 W US 2007067786W WO 2007127979 A2 WO2007127979 A2 WO 2007127979A2
Authority
WO
WIPO (PCT)
Prior art keywords
seal
carrier
bore
quick connector
housing
Prior art date
Application number
PCT/US2007/067786
Other languages
English (en)
Other versions
WO2007127979A3 (fr
Inventor
Daniel Howard Walker
Timothy Jon Stuart
Kevin John Kreiner
Preston Lewis Bengry
Original Assignee
Cooper Standard Automotive, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cooper Standard Automotive, Inc. filed Critical Cooper Standard Automotive, Inc.
Publication of WO2007127979A2 publication Critical patent/WO2007127979A2/fr
Publication of WO2007127979A3 publication Critical patent/WO2007127979A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
    • F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
    • F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling

Definitions

  • the present invention relates, in general, to fluid quick connectors which couple fluid connector components.
  • Snap-fit or quick connectors are employed in a wide range of applications, particularly, for joining fluid carrying conduits in automotive and industrial application.
  • Such quick connectors utilize retainers or locking elements for securing one connector component, such as a tubular conduit, within a complimentary bore of another connector component or housing.
  • Such retainers are typically of either the axially-displaceable or radially-displaceable type.
  • the terms "axial ly-displaceable” or “radially-displaceable” are taken relative to the axial bore through another component,
  • the retainer In a typical quick connector with an axially displaceable, retainer, the retainer is mounted within a bore in a housing of one connector component of housing.
  • the retainer has a plurality of radially and angularly extending legs which extend inwardly toward the axial center line of the bore in the housing.
  • a tube or conduit to be sealingly mounted in the bore in the housing includes a radially upset portion or flange which abuts an inner peripheral surface of the retainer legs.
  • Seal and spacer members as well as a bearing or top hat are typically mounted in the bore ahead of the retainer to form a seal between the housing and the tube when the tube is lockingly engaged with the retainer legs in the housing.
  • Radially displaceable retainers are also known in which the retainer is radially displaceable through aligned bores or apertures formed transversely to the main throughbore in the housing.
  • the radially displaceable retainer is typically provided with a pair of depending legs which are sized and positioned to slip behind the radially upset portion or flange on the tube only when the tube or conduit is fully seated in the bore in the housing. This ensures a positive locking engagement of the tube with the housing as well as providing an indication that the tube is fully seated since the radially displaceable retainer can be fully inserted into the housing only when the tube has been fully inserted into the bore in the housing.
  • One or more seal elements such as resilient O-rings are mounted in a stepped portion of the bore of the connector housing.
  • our rigid spacer is interposed between the two O-rings.
  • the 0-rings are compressed by the end form when the end form is inserted into the bore and the connector housing to form a seal between the endform and the inner surface of the bore in the connector housing.
  • the O-rittg seals and the spacer are separate components which are inserted into the bore in the connector housing at the connector manufacturing site.
  • a cylindrical bushing or sleeve commonly known as a "top hat" is inserted into the bore in the connector housing and is friction fit or locked in place by interconnecting projections and recesses in the top hat and the housing to retain the O-ring seal elements and the spacer within the connector housing until engagement with the endform.
  • a fluid quick connector for joining first and second fluid elements has a multi-shot integral seal carrier.
  • the fluid quick connector includes a housing having a bore extending from an open end and a multi-shot, molded seal element fixedly disposed in the bore for sealing engagement with an endform to seal the endform to the housing.
  • the fluid quick connector includes a seal carrier disposed in the bore of the housing. The at least one multi-shot molded seal element is fixedly mounted on the seal carrier. The carrier is then fixed in position in the bore in the housing.
  • the at least one seal element may include a unitary seal element having an inner seal portion disposed on an inner surface of the carrier for sealingly engaging the endform inserted into the housing bore and an outer seal portion disposed on an outer surface of the carrier for sealingly engaging an inner surface of the bore in the housing.
  • At least one transverse bore may be formed in the carrier.
  • a stem extends through the transverse bore to unitarily join the inner seal portion and the outer seal portion. The inner seal portion and the outer seal portion extend completely about the inner and outer circumference of the carrier.
  • the at least one seal element has an edge portion extending continuously from the inner seal portion to the outer seal portion about one end of the seal carrier.
  • the at least one seal element may also include at least one tab projecting unitarily and longitudinally from an annular seal portion.
  • the at least one tab is disposed in a complimentary recess in the seal carrier.
  • a pair of radially extending flanges are disposed on the seal carrier.
  • the seal element is disposed between the pair of flanges on the carrier.
  • annular recess is formed in an inner surface of the bore in the housing and the at least one seal element is double shot molded in the recess.
  • the at least one seal element may include a pair of longitudinally spaced sea! elements, each seal element mounted in one annular recess in an inner surface of the bore in the housing.
  • the seal carrier feature enables one or more seal elements to be fixed within a bore of a connector housing to provide sealing between an endform insertable into the bore and the inner surface of the housing bore with a reduced number of separate components that need to be manufactured, installed and transported between manufacturing and use sites, as well as minimizing the potential for lost or damaged seal elements and/or top hats.
  • the seal carrier Is usable in most fluid quick connector constructions regardless of the type of retainer used to latch the endform to the connector housing.
  • FIG. 1 is an exploded, perspective view of a quick connector with integral seal carrier
  • FIG. 2 is an enlarged, left end, perspective view of the retainer shown in Fig. 1;
  • Fig. 3 is an end view of the quick connector and retainer, with the retainer shown in a partially inserted, storage position;
  • Fig. 4 is an end view of the quick connector and retainer, with the retainer depicted in a fully inserted, position in the female component;
  • Fig. 5 is a cross sectional view generally taken along line 5-5 in Fig. 4;
  • Fig. 6 is an enlarged, perspective view of the seal carrier shown in
  • Fig. 7 is a longitudinal cross-sectional view of the seal carrier shown in Fig. 6;
  • Fig. 8 is a perspective view of the seal carrier prior to mounting the seals on the carrier;
  • Fig. 9 is a perspective view of one of the seals after it is formed on the seal carrier, but with the seal carrier not shown;
  • Fig. 10 is a longitudinal, cross-sectional view showing another aspect of a seal carrier
  • Fig. 11 is a longitudinal, cross-sectional view, similar to Fig. 10, but showing the assembled position of the end form in the quick connector;
  • Fig. 12 is an enlarged, perspective view of the seal carrier shown in
  • FIG. 13 is an enlarged, perspective view of another aspect of a seal carrier usable on any of the previously described quick connectors, and shown without the seal member;
  • Fig. 14 is an enlarged, perspective view of the seal carrier of Fig. 13 with the seal member in a mounted position;
  • Fig. 15 is an enlarged, longitudinal, cross-sectional perspective view of the assembled seal carrier depicted in Fig. 14;
  • Fig. 16 is a longitudinal, cross-sectional view of another aspect of a seal carrier mounted in a quick connector using a conical split ring retainer;
  • Fig. 17 is a perspective view of the conical split ring retainer shown in
  • Fig. 18 is a side elevational view of the seal carrier shown in Fig. 16, prior to mounting of the seal member thereon;
  • Fig. 19 is a longitudinal, cross-sectional view of the seal carrier shown in Fig. 18;
  • Fig. 20 is a perspective view of the seal carrier shown in Figs. 16-19 with the seal member mounted thereon;
  • Fig. 21 is a longitudinal, cross-sectional view, similar to Fig. 16, but showing the mounting of the endform in the quick connector;
  • Fig. 22 is an enlarged, longitudinal, cross-sectional view of another aspect of a quick connector having multi-shot seals.
  • Fig. 23 is a longitudinal, cross-sectional view showing the quick connector of Fig. 22 with a fully inserted endform.
  • Figs. 1 - 4 depict a fluid coupling 16 including a quick connector 12, a retainer 10 and an endform 14 which is latched in the quick connector 12 by the retainer 10.
  • the following description of the quick connector 12 is by way of example only as the quick connector 12 may have any suitable shape typically found in fluid quick connectors. [0045] Further, the following description of the use of the quick connector 12 to connect tubular members will be understood to apply to the connection of conduits, hoses, and/or solid metal or plastic tubes to each other in fluid flow communication.
  • the end of a conduit or tubular member inserted into the interior of one end of the quick connect will be defined as an endform.
  • the endform can be a separate member which receives a separate hose or conduit at one end or a shape integrally formed on the end of an elongated metal or plastic tube.
  • the quick connector 12 includes a housing 20 having an elongated, axially extending, internal stepped bore 22, shown in detail in Fig. 5, extending from a large diameter first, open end 24 to a smaller diameter, second open end 26.
  • the stepped bore 22 includes a first bore portion 21 extending from an opening at the first end 24 of the housing 20 to a second smaller diameter second stepped bore portion 23.
  • a third yet smaller diameter stepped bore portion 25 extends axially from one end of the second stepped bore portion 23 and communicates to a still smaller fourth stepped bore portion 27 which extends to the open second end 26 of the housing 20.
  • the inner diameter of the first stepped bore portion 21 is sized to slidably receive the endform engagement feature, such as the outer diameter of the radially enlarged flange or upset bead 18 on the endform 14.
  • the third stepped bore portion 25 has an inner diameter sized to snugly engage the outer diameter of the end portion 11 of the endform 14 when the endform 14 is fully inserted into the stepped bore 22 as described hereafter.
  • the first end 24 of the housing 12 is formed with a pair of opposed, exterior flat surfaces 40 and 42.
  • the flat surfaces 40 and 42 are diametrically opposed on the first end 24 and may be centrally located on each diametrical side of the first end 24.
  • the adjacent surfaces of the housing 20 to one side of the flat surfaces 40 and 42 form an opposed pair of lock surfaces or flats, such as a first flat 43 and a second flat 44.
  • a second pair of flats 45 and 46 are formed on the housing 12 or the other side of the flat surfaces 40 and 42.
  • the flats 43 and 44 extend axia ⁇ ly a short distance from the first end 24 of the housing 20.
  • Opposed surfaces 48 and 50 of the first end 24 of the housing 20 between the flats 43 and 44 and the flats 45 and 46 have a generally arcuate shape as shown in Figs. 3 and 4.
  • Apertures 49 and 51 are formed respectively in each surface 48 and 50. The apertures 49 and 51 are aligned to form a transverse bore extending through the first end 24 of the housing 20 which is disposed in communication with the first bore portion 21 in the housing 20,
  • the retainer 10 is by way of example only as other radially-displaceable retainer designs having side locking projections may also employ the disclosed seal carrier.
  • the housing 20 can be reconfigured to receive an axial -type retainer as shown in U. S. Patent No. 4,681,351. or a split-ring conical retainer as shown in Figs. 10 - 13 and in U. S. Patent No. 6,857,667.
  • the retainer 10 is formed of a one-piece body of a suitable plastic, such as polyketone, for example, and has an end wall 62 formed of a generally curved or arcuate shape, by way of example only, and first and second spaced side legs 64 and 66.
  • each side leg 64 and 66 extend generally parallel to each other from opposite ends of the end wall 62. Further, each side leg 64 and 66 has an outer end 72, although it is also possible to connect the side legs 64 and 66 at a lower portion by an arcuate member.
  • a pair of projections 70 extend along the length of the retainer 10 between opposed side edges of the side legs 64 and 66, respectively.
  • the projections 70 are located adjacent the outer end 72 of each leg 64 and 66.
  • the projections 70 engage surfaces on the housing 12 to position the retainer 10 in the shipping position shown in Fig. 3, or in the fully inserted, latched position shown in Figs. 4 and 5.
  • the retainer 10 includes an endform engagement feature receiver 80 which is preferably carried as an integral, one-piece part of the retainer 10.
  • the receiver 80 includes first and second depending arms 82 and 84 which extend from a boss or enlargement 86 integrally formed on the inner surface of the end wall 62 of the retainer 10.
  • An inverted, U-shaped slot 88 is formed on the inner surfaces of the arms 82 and 84 and the boss 86 which is sized to snugly conform to the outer diameter of the tubular portion 11 of the male component 14.
  • the outer ends 91 of each of the arms 82 and 84 are angled or tapered to act as a guide surface to assist in sliding movement of the arms 82 and 84 over the tubular end 11 of the endform 14,
  • each of the arms 82 and 84 extends from one side end contiguous with a first side end 90 of the retainer 10 to an opposed side end contiguous with a second side end 92 of the retainer 10.
  • the 66 of the retainer 10 are formed with an angled hook-like shape terminating in a tip 95.
  • the tip 95 is disposed at an acute, upturned angle with respect to the corresponding legs 64 and 66.
  • the grooves 40 * and 42' are formed in the interior of the flat surfaces 40 and 42, respectively, and include a recess or notch 96 at one end which is shaped complimentary to the shape of the tip 95 of the projection 70 on each of the legs 64 and 66 of the retainer 10. In this manner, pull out of the retainer 10 from the housing 20 is resisted by the interlocking tips 95 on the legs 64 and 66 of the retainer 10 which are seated within the notches 96 in the grooves 40' and 42' in the housing 20 as shown in the partially inserted, shipping position of the retainer 10 in Fig. 3.
  • the flats or lock edges 44 and 46 are disposed at an angle complimentary to the acute angle of the tips 95 on the legs 64 and 66 of the retainer 10. This enables interlock of the tips 95 with the flats 44 and 46 resists pull out of the retainer 10 from the housing 20 from the fully latched position shown in Fig. 4.
  • the hook shaped tips 95 on the legs 64 and 66 of the retainer 10 in conjunction with the grooves 40' and 42' in the housing 20 also provide, a distinct, "avalanche effect" snap action of the retainer 10 in the housing 20.
  • the grooves 40' and 42' in the housing 20 are formed in generally planar flat surfaces. The inner surfaces force the ends 72 of the legs 64 and 66 laterally inward toward each other when the retainer 10 is inserted into the housing 20.
  • the retainer 10 can be first be installed on the housing 20 in a shipping or storage position as shown in Fig. 3. In this position, the projections 70 on the side legs 64 and 66 of the retainer 10 snap into and engage the longitudinally extending grooves 40' and 42'.
  • the retainer 10 cannot be moved to the ftilly inserted position thereby providing an indication of an incomplete seating or mounting of the end portion 11 of the endform 14 in the housing 20.
  • seal mount described hereafter may also be employed in a fluid coupling formed of a quick connector and end form in which the endform engagement feature on the endform is an annular groove spaced from the tip end of the endform which is latched by an engagement member on the retainer in the form of an arcuate, radially inward extending projection carried on the inner surface of the arms 82 and 84 as described in U.S. Patent No. 6,637,779.
  • One or more seal elements are typically mounted in a quick connector to sealingly couple the endform to the inner surface of the bore in the quick connector housing.
  • One aspect of a unique seal mount is shown in Figs. 5-9.
  • one or more seal members or elements which two seal elements 100 and 102 being described and illustrated by example only, are mounted on a sleeve-like, generally cylindrical carrier 104 which can also function as a top hat to fixedly mount the seals 100 and 012 in the first bore portion 23 of the housing 20 of the quick connector 12.
  • the carrier 104 shown in Fig. 5, and in greater detail in Fig. 6-9, has a generally cylindrical body 106 having a first end 108 and an opposed second end 110.
  • the first end 108 defines a radially outward extending flange 112.
  • the second end 110 also defines a radially outward extending flange 114.
  • An annular collar 116 is formed intermediately between the first and second ends 108 and 110 and has a radially enlarged shape to define an annular recess between itself and the second end flange 114.
  • the seal mounting bores 120, 122, 124 and 126 are formed in the carrier 104 in a radially extending direction between the recess 118 and the third inner diameter portion 136 of the bore 128.
  • Two pairs of csrcumferentially spaced bores such as bores 120 and 122 for the seal member 110; and bores 124 and 126 for the seal member 102 are formed in the annular recess 118 between the second end flange 114 and the collar 116.
  • a throughbore 128 extends through the carrier 104 between the first end 108 and the second end 110.
  • the bore 128 is formed with a first largest inner diameter portion 130 extending from the first end 108 to a shoulder 131.
  • the inner diameter of the first inner diameter portion 130 is sized, both in radial and longitudinal dimensions, to receive the endfcrm engagement feature or bead 18 as shown in Fig. 5.
  • a second inner diameter portion 132, smaller in diameter than the first inner diameter portion 130 extends from the shoulder 131 to a second shoulder 134 intermediate the first and second ends 108 and 110.
  • a third yet smaller inner diameter bore portion 136 extends from the shoulder 134 to the second end 110.
  • the seal members 100 and 102 are integrally fixed on the carrier 104 by a multi-shot molding process in which, after the carrier 104 is formed in one mold, the carrier 104 acts as an insert in another mold wherein the seal material is injected into the mold to form the seal members 100 and 102.
  • the seal members 100 and 102 are formed on the inside and outer surfaces of the carrier 104.
  • the seal members 100 and 102 can be formed individually in separate mold stations and molding shots or simultaneously in a single shot onto the carrier 104.
  • the seal elements 100 and 102 while being able to take any form, uniquely form an inner seal portion 140 for the first seal member 100, an inner seal portion 142 for the second seal member 102, and an outer seal portion 144 for the first seal member 100 and 146 for the second seal member 102.
  • the inner and outer seal portions 140 and 144 for the first seal member 100 and the inner and outer seal portions 142 and 146 for the second seal member 102 are joined by stems 148 and 150 for the seal member 100 and stems 152 and 154 for the seal member 102.
  • the stems 148 and 150 extend through the bores 120 and 122 and the carrier 100.
  • the stems 152 and 154 radially extend respectively through the bores 124 and 126 in the carrier 104.
  • the seal members 100 and 102 are formed of a resilient material.
  • the seal members 100 and 102 may be formed of a high temperature fluorocarbon.
  • the inner and outer seal portions 140 and 142, as well as the outer seal portions 144 and 146 of the seal members 100 and 102 are illustrated by example only as having multiple lobes, with three lobes shown by example only.
  • the carrier 104 With the seal members 100 and 102 fixedly molded on the carrier 104, the carrier 104 can be inserted through the first end 24 of the bore in the connector housing 20. The carrier 104 is inserted until a latch finger or projection 160, formed on the exterior surface of the carrier 104 at an intermediate position between the first and second ends 108 and 110, such as adjacent to the intermediate collar 116, engages an notch or annular recess 34, shown in Fig.
  • a seal carrier 164 is illustrated as being generally similar to the carrier 104 in that a throughbore extending between the first and second ends 166 and 168 includes a first diameter end bore portion 168 which can be radially inward tapered to guide the tip end of the endform into engagement with the seals, a second smaller diameter intermediate end bore portion 170, and a third yet smaller bore portion 172.
  • a shoulder 174 is formed between adjoining surfaces of the second and third bore portions 170 and 172 to define one end of an inner recess 176 for the third bore portion 172,
  • the radially enlarged collar 116 on the carrier 104 is replaced by a constant diameter radially enlarged portion through at least the portion of the carrier 164 which will extend through the length of the second bore portion 170.
  • the first seal member 100 is identical to the seal member 100 on a carrier 104 and will not be described in further detail.
  • a radially enlarged flange 182 is formed in the outer recess 176 between the shoulder 178 and the second end 168 of the carrier 164 and acts as a spacer between adjoining sides of the sea! members 100 and 180.
  • the mold used to form the second seal member 180 is constructed in manner such that the second seal member is formed with an inner seal portion 186, an outer seal portion 188 which are interconnected by radially extending stems 190 and 192 extending through the bores 175 in the carrier 164, and a radially extending edge or end portion 194 extending over the second end 168 of the carrier 164 and integrally joining one edge of the inner seal portion 186 and the outer seal portion 188.
  • FIG. 13-15 Another aspect of a seal carrier 230 is shown in Figs. 13-15.
  • the seal carrier 230 may be employed in any of the quick connectors described above and shown in Figs. 1-12.
  • the seal carrier 230 may be in the form of a generally cylindrical body 232 having an interior bore extending from a first end 234 to an opposed second end 236.
  • the body 232 includes a first substantially constant diameter intermediate section 238 which transitions into an outward tapered or flared first end portion 240 extending to the first end 234.
  • a shoulder 242 has a generally annular shape with at least one and typically two polygonal or square-shaped recesses 244, only one of which is shown in Figs. 13-15.
  • the recesses 244 project into the intermediate diameter portion 238 of the carrier 230 and may be spaced diametrically opposite on the body 232 of the carrier 230.
  • a reduced diameter second end portion 246 extends from the shoulder 242 to the second end 236.
  • an interior shoulder 243 is formed generally concentric with the outer shoulder 242.
  • the shoulders 242 and 243 form annular edges for one end portion of the seal member 250.
  • At least one and possibly two or more apertures are formed in the second end portion 246 longitudinally spaced from the second end 238 of the carrier body 232.
  • the apertures 252 and 254 may be of constant diameter, generally circular bores extending from the exterior to the interior of the body 232 may also be provided.
  • the apertures 252 and 254 are in the form of arcuate shaped slots extending in a circumferentially direction and diametrically opposed about the second end portion 246.
  • the seal member 250 is in the form of a single, unitary seal member having one or more lobes with two lobes 256 and 258 being shown by way of example only.
  • the lobes 256 and 258 are longitudinally spaced by a reduced diameter neck 260.
  • the neck 260 overlays the apertures 252 and 254 in the carrier body 232.
  • the seal member 250 is double shot molded onto the carrier body 232, with the carrier body 232 acting as an insert in a suitably formed mold. Longitudinally extending, diametrically opposed tabs, with only one tab 264 being shown in Figs. 14 and 15 are ⁇ nitarily formed as part of the seal member 250 and extend longitudinally from the lobe 258 into each of the recesses 244 on the carrier body 232. This provides added stability to retain the seal member 250 on the carrier body 232.
  • the lobe 256 of the seal member 250 includes an end portion 266 which projects unitarily between the outer lobe 256 and the complementary inner lobe 268.
  • the inner lobe 268 is concentrically disposed within the outer lobe 256.
  • an inner lobe 270 connected to the inner lobe 268 by an inner neck 271 is concentrically disposed within the outer lobe 258.
  • the seal carrier 230 carrying the seal member 250 is mounted in one of the quick connector bodies, such as the body of the quick connector 160 shown in Fig. 10, the radially enlarged, tapered first end portion 234 forms a press friction fit within the bore in the quick connector 160 to fix the seal carrier 230 in a stationary position within the bore of the quick connector 160.
  • the lobes 256 and 258 of the seal member 250 are positioned in the same general area of the seal members 100 and 180 in the aspect of the seal carrier 164 shown in Fig. 10 to form a seal between the seal carrier 230 and the inner surface of the bore in the quick connector 160.
  • a seal carrier 280 mounted in a body 282 of a quick connector 284 to sealingly couple the quick connector 284 with the endform 14.
  • the quick connector body 282 includes a stepped internal bore 286 which extends from a first end 288 to an opposed second end 290.
  • the first end 288 of the connector body 282 includes a radially inward and angularly extending, generally conical end section 292 which forms an internal conical ramp surface 294.
  • the ramp surface 294 forms a portion of a conical passage in which a conical split ring retainer 296 slidably extends.
  • the seal carrier 280 includes a one-piece body 300 having an internal bore 302 extending from a first end 304 to a second end 306.
  • the body 300 includes a generally cylindrical, constant diameter, intermediate or central section 310 which is between the first and second ends 304 and 306.
  • An enlarged diameter, cylindrical flange 312 is formed between the ramp surface 298 and the central section 310.
  • a shoulder 342 is formed at an opposite end of the central section 310 and forms a transition surface between the central section 310 and a reduced diameter second end section extending to the second end 306.
  • the second end section is divided by a flange 316 into two second end sub-sections 318 and 320, respectively, forming mounting surfaces for the separate seal elements which may be the same as the seal elements 100 and 180 described above and shown in Fig. 10.
  • Apertures such as two pairs of opposed, arcuate shaped, circumferentially extending slots 322 and 324 and 326 and 328 are respectively formed in the second end portions 318 and 320 to define openings for connector portions between the inner and outer sections of each seal member 100 and 180 as explained above for Figs. 10 and 13.
  • seal members 100 and 110 may take other forms, such as a seal member which does not extend over the edge of the second end 306 of the body 300 or a single unitary seal member, similar to the seal member 250 shown in Fig. 14.
  • the body 300 of the seal carrier 280 is inserted through the open first end 288 of the connector body 282, prior to radially inward bending of the first end portion of the connector body 282 to form the radially inward, angularly extending, conical-shaped end 292.
  • the body 300 of the seal carrier 280 is inserted into the portion of the stepped internal bore 286 of the connector body 282 until one edge of the raised flange 312 engages an inner shoulder formed in the bore 286 of the connector body 282 as shown in Figs. 16 and 21.
  • the frictional engagement of the seal members 100 and 180 with the inner surface of the connector body 282 forming the bore 286 frictionally holds the seal carrier 280 in the mounted position shown in Figs. 16 and 21.
  • the endform 14 is then inserted through the open first end 288 of a connector body 286 to a fully inserted position shown in Fig. 21 wherein the engagement feature or raised flange 18 engages an inner shoulder formed adjacent the first end 304 of the body 300.
  • the expansion of the conical retainer 296 to allow insertion of the endform 14 into the connector body 282 and the subsequent snap movement of the conical retainer 296 radially inward to the locked position holding the endform 14 in the connector body 282, is shown in Fig. 21 as explained in greater detail in the aforementioned U. S. Patent No. 6,857,667.
  • a quick connector 200 having a housing construction substantially similar to the quick connector 160 shown in Figs. 10 and 11.
  • the quick connector 200 also includes, by example only, the conical split ring retainer 162.
  • the seal carrier is the actual housing 202 of the quick connector 200.
  • Two recesses 204 and 206 are provided for the at least one or more seal members, such as seal members 208 and 210, respectively.
  • the recesses 204 and 206 are spaced apart and open into the second bore portion 210 of the bore extending through the housing 202.
  • Each of the seal members 208 and 210 is double-shot molded into the recess with the connector housing 202 acting as an insert or part of the mold used to form the seals 208 and 210.
  • Each of the seals may have, again by example, a multi- lobe inner surface which engages the exterior surface of the endform 14 as shown in Fig. 23.

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

Abstract

L'invention concerne un raccord rapide pour fluide comprenant un élément d'étanchéité obtenu par moulage multi-matières et fixé dans l'alésage d'un boîtier de raccord. Dans un des aspects, l'élément d'étanchéité est fixé sur un support qui est lui-même inséré de façon fixe dans l'alésage du boîtier. L'élément d'étanchéité peut comprendre une partie intérieure d'étanchéité disposée sur une surface intérieure du support pour interagir avec une forme d'extrémité et une partie monobloc extérieure d'étanchéité disposée sur une surface extérieure du support de façon à interagir de façon étanche avec la surface intérieure de l'alésage du boîtier. Dans un autre aspect, l'élément d'étanchéité comprend une partie de bord disposée autour d'une extrémité du support et faisant corps avec les parties intérieure et extérieure d'étanchéité. Dans un autre aspect, l'élément d'étanchéité est obtenu par moulage multi-matières à l'intérieur d'un évidement annulaire dans une surface intérieure de l'alésage du boîtier de raccord pour interagir de façon étanche avec la forme d'extrémité.
PCT/US2007/067786 2006-05-01 2007-04-30 Raccord rapide pour fluide avec support de joint intégré obtenu par moulage multi-matières WO2007127979A2 (fr)

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Application Number Priority Date Filing Date Title
US79647206P 2006-05-01 2006-05-01
US60/796,472 2006-05-01

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WO2007127979A2 true WO2007127979A2 (fr) 2007-11-08
WO2007127979A3 WO2007127979A3 (fr) 2008-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017058195A1 (fr) * 2015-09-30 2017-04-06 Hewlett-Packard Development Company, L.P. Joints d'étanchéité de fluide

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127682A (en) * 1990-05-30 1992-07-07 Usui Kokusai Sangyo Kaisha, Ltd. Joint
US5653475A (en) * 1993-06-08 1997-08-05 Kuehner Gmbh & Cie Collant coupling for connecting coolant lines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127682A (en) * 1990-05-30 1992-07-07 Usui Kokusai Sangyo Kaisha, Ltd. Joint
US5653475A (en) * 1993-06-08 1997-08-05 Kuehner Gmbh & Cie Collant coupling for connecting coolant lines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017058195A1 (fr) * 2015-09-30 2017-04-06 Hewlett-Packard Development Company, L.P. Joints d'étanchéité de fluide
CN108136786A (zh) * 2015-09-30 2018-06-08 惠普发展公司有限责任合伙企业 流体密封件
EP3356147A4 (fr) * 2015-09-30 2019-06-12 Hewlett-Packard Development Company, L.P. Joints d'étanchéité de fluide

Also Published As

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