FR2889287A1 - Quick connector for fluid - Google Patents

Quick connector for fluid Download PDF

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Publication number
FR2889287A1
FR2889287A1 FR0652702A FR0652702A FR2889287A1 FR 2889287 A1 FR2889287 A1 FR 2889287A1 FR 0652702 A FR0652702 A FR 0652702A FR 0652702 A FR0652702 A FR 0652702A FR 2889287 A1 FR2889287 A1 FR 2889287A1
Authority
FR
France
Prior art keywords
surface
retaining member
member
ring
locking
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.)
Pending
Application number
FR0652702A
Other languages
French (fr)
Inventor
Stephen H Gunderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TI Group Automotive Systems LLC
Original Assignee
TI Group Automotive Systems LLC
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
Priority to US11/174,262 priority Critical patent/US7467813B2/en
Application filed by TI Group Automotive Systems LLC filed Critical TI Group Automotive Systems LLC
Publication of FR2889287A1 publication Critical patent/FR2889287A1/en
Application status is Pending legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • F16L37/0985Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part
    • F16L37/0987Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part the flexible hook being progressively compressed by axial tensile loads acting on the coupling

Abstract

A quick connector whose body (14) has a bore receiving a tube (20) provided with a retaining member having two locking members (66, 68) extending rearwardly and being deformable radially inwardly The locking members (66, 68) have a deflection surface cooperating with the surface (34) defining the inlet port.

Description

Field of the invention

  The present invention relates to the field of fluid quick connectors and a method of making such a connector and a protective cap subassembly for such a connector.

  The invention particularly relates to connectors and in particular fast connectors for removably connecting a male element to the end of a pipe in a connector body with the interposition of a connecting member.

  In the automotive or other field, a connector coupling is often used to connect the fluid circuits between two components or conduits; a quick connector generally comprises a male element housed in a connector body. It is generally advantageous to use a quick connector both from the point of view of cost and ease of use. STATE OF THE ART A retaining member is already used to retain the male member in the connector body. This known retainer has a set of locking members with arms which are radially projecting from the male member and cooperating with an annular surface of the connector body. The stop between the locking arms of the male member and the annular surface of the connector body prohibit the extraction of this member out of the connector body. This type of retainer, which has proved to be of interest, is especially described in US 5,161,832, US 5,324,082, US 5,626,371, US 5,628,531.

  This retaining member described comprises an annular-shaped body carrying the locking members molded integrally with the body. To install the retainer, it is inserted into a hole in the connector body. During the introduction phase, the locking members and / or the locking arms must bend radially inwardly relative to the retainer to allow locking members to pass through the orifice. of the inlet bore of the connector body.

  The evolution of this type of quick connector for high pressure applications requires stronger forms of the retaining member making it more difficult to install them in the connector body. This difficulty is further accentuated if the retaining member is already installed on the male member or on the tube before it is inserted into the bore of the connector body.

  OBJECT OF THE INVENTION The present invention aims to develop a quick connector of the type defined above allowing its use in fluid systems such as a power steering pump, brake cylinders or components of packaging systems air.

  However, by examining these fast connectors it has been found that due to the limited annular space between the tubular element or male organ and the body piercing inlet, the locking members are often hampered in their radial movement because that they touch each other. If then a large force is applied, it damages the locking members and deteriorates the retainer and the connector becomes unusable.

  Therefore, the purpose of the present invention is to develop a quick connector to ensure a reliable connection with the connector body by allowing the locking members and / or the locking arms to flex sufficiently during the introduction phase of the connector. the retaining member and the male member in the connector body without being damaged by this movement.

  DESCRIPTION AND ADVANTAGES OF THE INVENTION For this purpose, the invention relates to a fluid connector of the type defined above, characterized in that the connector body has a bore receiving a tube axially passing through a surface defining an inlet opening. the retaining member is introduced axially into the bore of the connector body via the inlet orifice, this retaining member having a body portion housed in the bore and at least two locking members extending towards rearwardly from the body portion towards the inlet opening, these two locking members being deformable radially inwardly upon insertion of the retaining member through the orifice the locking members each have at least one deflection surface cooperating with the surface defining the inlet orifice during the introduction of the retaining member into the bore, this deflection surface 'at least the one of the two locking members being arranged axially in front of at least one deflection surface of another locking member of at least two locking members, in the direction of the part of the retaining member and cooperating with this inlet defining the front surface, engaging the opening surface defining the inlet by at least one deflection surface of the other of the two locking members.

  The fluid quick connector according to the invention makes it possible to make the connection between the tubular member and the connector body with the retaining member without the locking members of the retaining member hindering this insertion movement by their coming against each other.

  The movements of introduction or extraction are in these very simple conditions and do not damage any of the components of the assembly.

  According to another advantageous characteristic, at least one of the locking members has at least one deflection surface arranged axially in front of at least the deflection surface of the other of the two locking members comprising at least one ramp which forms at least a deflection surface.

  According to another advantageous characteristic, the body of the retaining member comprises a ring and the locking members comprise at least one branch extending axially rearwards from the ring and at least one ramp on at least one locking member is provided on at least one branch.

  According to another characteristic, the locking member comprising at least one ramp is provided with two branches each having a ramp and in particular the retaining member comprises two locking members having a ramp on each branch and in particular two locking members having a ramp on each branch and two other locking members.

  According to another feature, the two locking members with ramps on each branch are arranged diametrically facing each other and the two other locking members are diametrically opposed to one another between the organs locks with ramps.

  According to another feature, each of the locking members comprises a locking arm carried by at least one arm or between the arms, the locking arms having a front stop face, a rear stop surface and an inclined outer surface. extending between them and forming a deflection surface for the locking member.

  According to another characteristic, at least one deflection surface defined by at least one ramp is axially in front of the deflection surfaces of the locking arms.

  According to another characteristic, the connector body has an inner annular radial surface in the inlet orifice and the connector comprises a tubular element with an outer cylindrical portion and an annular bead projecting radially with respect to this cylindrical portion, the tubular element being housed in a bore of the connector body provided with abutment surfaces for locking arms abutting against the bead and the rear abutment surfaces of the locking arms abutting against the annular radial surface of the connector body.

  According to another feature, the connector comprises at least one seal and the retaining member comprises a forward extension with a radial annular surface before abutting against the seal.

  According to another characteristic, the connector comprises an O-ring housed in the bore of the connector body surrounding the outer cylindrical portion of the tube and the retaining member has an annular extension extending towards the front of the ring, this extension ring having a radial annular surface before abutting against the O-ring.

  According to another characteristic, the connector comprises an O-ring placed in the bore of the connector body by surrounding the cylindrical surface of the tube and in sealing relation with the body and the retaining member comprises an annular extension towards the front of the body of the retaining member with a radial annular surface before abutting against the O-ring, said front annular radial surface receiving the axial load applied to the O-ring by the pressurized fluid.

  According to another feature, the fluid connector comprises a connector body forming a bore receiving a tube of a tubular male member with an outer cylindrical portion housed in the bore, an O-ring housed in the bore sealingly with the body of connector and the outer cylindrical surface of the male member, a retaining member housed in the bore having a body portion and at least one locking member removably retaining the male member in the bore, the retainer comprising an annular extension with a radial annular surface before abutting against the O-ring.

  According to another feature, the piercing of the connector body has a cylindrical sealing surface surrounding the cylindrical portion of the tubular male member and the O-ring is in sealing relationship with the cylindrical sealing surface of the connector body. .

  According to another characteristic, the connector body has an annular radial surface in the bore, the male, tubular member having a radial bead projecting from its cylindrical portion and the retaining member comprises locking arms forming overhangs. stop faces cooperating with the bead and the annular radial surface.

  The invention also relates to a method characterized in that the retaining member is fixed to the tubular element, its abutment surface being abutted against the bead, the seal is fixed to the tubular element in front of the tubular element. retaining member and introducing the tubular member, the seal and the retainer into the bore of the connector body through the inlet port and positioning the rear stop surface to abut against the annular radial surface of the piercing.

  According to another characteristic of the process, a protective cap is made, the sealing member and the retaining member are fixed to this protective cap, or the gasket, the retaining member and the protective cap are fixed to the protective cap. tubular member and - the protective cap of the tubular member, the seal and the retainer is removed prior to introducing the seal, the retainer and the tubular member into the connector body through its entrance port.

  According to another characteristic of the method, it is ensured that the sealing element is in the protective cap when the tubular element is attached to it, and furthermore that relative axial movement is allowed between the cap protector and the retaining member in the absence of seal to prohibit the attachment of the protective cap and the retaining member on the tubular element.

  The invention also relates to a protective cap subassembly for a connector as defined above.

  This subassembly comprises a protective cap having a sleeve, a ring spaced from the sleeve and at least one branch connecting the sleeve to the ring and at least one clipping lug extending from the sleeve, a seal being radially positioned in at least one branch and the clipping lug and a retaining member provided with an annular portion removably connected to the protective cap by at least one clipping lug, configured to allow flexion thereof, and releasing the retainer relative to the protective cap.

  According to another characteristic, the protective cap has two clipping lugs extending radially from the sleeve, each of the clipping lugs having a hook directed axially towards the ring, the hooks removably connecting the ring. of the retaining member, the clipping lugs further having a reduced neck to bend and allow to disengage the hooks relative to the ring of the retaining member.

  According to another feature, the retaining member has a front annular extension extending towards the seal and the clipping lugs form radial abutment surfaces and the sealing member is placed between the radial abutment surfaces and the annular extension of the retaining member.

  According to another feature, the hooks each comprise a radial abutment surface for detachably cooperating with the annular portion of the retaining member, the axial distance between the radial abutment surfaces of the clipping lugs and the abutment surfaces. radial of the hooks is slightly greater than the combined axial thickness of the seal, the annular extension of the retaining member and the annular portion of the retaining member, the seal, the axial extension of the retaining member and the ring of the retaining member being located between the radial abutment surfaces of the attachment lugs and the radial abutment surfaces of the hooks.

  According to another feature, the hooks each form an axial surface extending forwardly and spaced a slightly smaller distance from the outer periphery of the seal placed between the axial surfaces of the hooks.

  According to another feature, the retaining member comprises at least two locking members extending axially from its ring, each locking member comprises a locking arm, these locking members and the locking arms being able to flex radially towards each other. the outside in contact with the bead of an associated tubular element, to allow relative axial movement of the bead and the locking arm, the ring of the protective cap defining an inner conical surface positioned with a narrow gap with respect to the arm of locking the locking members to prevent bending and prohibiting the relative axial movement of the bead of the tubular member and the inner conical surface of the ring of the protective cap is positioned to be slightly disengaged above the locking member when the subset does not have a seal.

  According to another characteristic, at least one of the hooks of the clipping lugs of the protective cap has an inclined abutment surface which abuts against one of the locking members to prevent these locking members from bending too much, radially. to the outside, and allow relative axial movement of the bead and the locking arms in the absence of seal in the subassembly.

  According to another characteristic, the protective cap further comprises a stop element extending radially outwardly from the sleeve in the vicinity of each clipping lug and these clipping lugs cooperate with the radial abutment members for limit their flexion movement.

  Finally, according to the invention, the seal is preferably an elastomer O-ring.

  According to another feature, the connector according to the invention comprises a retaining member of a polymer such as polyetherketone, nylon (registered trademark), a high density polyethylene.

  Drawings The present invention will be described below in more detail with the aid of a quick connector and a cap subassembly according to the invention, shown in the accompanying drawings, in which: FIG. FIG. 2 is a cross-sectional side view of the connector body according to the invention, in FIG. Figure 4 is a side view of the retainer of Figure 3, Figure 5 is a sectional view of the retainer of Figure 5, Figure 5 is a sectional view of the retainer of Figure 5; FIG. 6 is a sectional view of the retaining member according to the line 6-6 of FIG. 4; FIG. 7 is a partially cutaway view of the connector of FIG. FIG. 8 is a sectional view of the connector of FIG. 1 completely assembled; FIG. 9 is an exploded view of a capucho; n, a seal of a retaining member and the male member of the assembly according to the invention, - Figure 10 is a side view of the protective cap of Figure 9, - Figure 11 is FIG. 12 is a top view of the protective cap of FIG. 10, FIG. 13 is a sectional view of the protective cap of line 13-13 of FIG. FIG. 14 is a sectional view of the connector cap of FIG. 9 constituting a subassembly preassembled with the seal and the retainer, FIG. 15 is a sectional view of the connector of the FIG. Fig. 16 is a sectional view of the connector cap subassembly of Fig. 14 completely installed on the male connector member; Fig. 17 is a sectional view of the connector connector subassembly of Fig. 14; of the subset of the connector cap of FIG. 9 in an abnormal mounting situation. DESCRIPTION OF EMBODIMENTS OF THE INVENTION FIG. 1 shows a fluid connection assembly generally bearing the reference 10 and corresponding to the present invention.

  The fluid connection assembly consists of a male member 12, a female connector body 14, a retaining member 16 for securing the male member 12 in the connector body 14 and an element sealing or gasket 18.

  The male element 12 is constituted by a rigid tube 20 having a free end 21. This tube is part of a system of fluid con-ducts. Vis-àvis the male member 12, the term before corresponds to the free end 21 and the rear term corresponds to the end opposite the free end 21.

  The male member 12 comprises a bead 22 coming radially projecting and whose rear surface 23 is remote from the free end 21 of the tube 20. The male member 12 also comprises a cylindrical portion 24 defined by the outer surface of the tube 20 between the bead 22 and the free end 21. A cylindrical portion 25, also defined by the outer surface of the tube 20, continues beyond the bead 22. The male member may be sheathed with a protective polymer coating such as nylon (registered trademark). The coating is removed from the cylindrical portion 24 from the free end 21 to the rear surface 23 of the bead 22.

  The female connector body 14 as shown may be an element of a power control system. Other possibilities are those of a component of a brake system, a connection system for an oil cooler, a heating and air conditioning ventilation system or any other other fluid system requiring a removable, fluid tight connection.

  As best seen in FIG. 2, the female connector body 14 has an axial bore 26 extending axially inwardly from the inlet port generally bearing the reference 28 at the intersection of the drilling 26 and the flat face 34 of the body 14. The bore 26 symmetrical about its axis 27 is subdivided into a receiving portion 30 of the retaining member 16 and a receiving portion 31 of the seal 18 and a guide portion 32 of the tube. The coaxial passage 33 continues from the guide portion 32 to the interior of the connector body 14.

  For the connector body 14, the front expression corresponds to the side of the passage 33 opposite the inlet port 28, and the back expression refers to the side facing the inlet port 28 to the inlet port 28. opposite of the passage 33. The expression inside or inward means directed radially towards the axis 27; likewise the expression outside or outside means the direction directed radially away from the axis 27.

  The inlet orifice 28 is constituted by an axial cylindrical surface 36 through which the retaining member 16 and the male member 12 pass to enter the bore 26. The chamfer 40 intersects the flat face 34 of the body 14 and is continued axially by the cylindrical surface 36. The chamfer facilitates the introduction of the retaining member 16 in the connector body 14. Beyond the axial cylindrical surface 36 there is an annular abutment surface 38 directed radially to the interior of the receiving and sealing portion 30 of the bore 26. The surface 38 serves as a locking and abutment surface for retaining the retaining member 16 in the bore 26 which member 16 retains in turn detachably , the male organ 12.

  Axially in front of the cylindrical surface 36 there is a cylindrical surface 42 of enlarged diameter; this surface 42 is followed by a chamfer 43 to join a cylindrical surface 44 having substantially the same diameter as the axial cylindrical surface 36. The cylindrical surface 44 terminates in an annular step 45 turned inward followed by a chamfered surface 46 connecting the cylindrical sealing surface 48 which terminates at a radial annular surface 50. The radial annular surface 38, the enlarged diameter cylindrical surface 42, the chamfer 43, the cylindrical surface 44, the radially recessing annular step 45 and the chamfered surface 46 as well as the cylindrical sealing surface 48 and the radial annular surface 50 define the receiving portion 30 of the retaining and sealing member of the axial bore 26.

  Starting from the radial surface 50, the cylindrical surface 52 extends axially; this surface 52 constitutes the guide portion 32 of the male member 12 in the axial bore 26. This cylindrical surface 52 is dimensioned to closely receive the outer cylindrical portion 24 of the male member 12 and guide it coaxially in the bore 26.

  Figures 3-6 show the retaining member 16. This retaining member 16 is a generally annular shaped member intended to be installed coaxially in the bore 26 of the receiving portion 32 of the retaining member 16 and the retaining member 16. sealing member 18 or seal. This retaining member 16 comprises a body constituted by a ring 54 having a radial surface 56 facing towards the front and a radial surface 58 facing towards the rear. For the retaining member 16, the front and back expressions have the same meaning as for the connector body 14. Thus, when the retaining member 16 is placed in the bore 26 of the body 14, its front radial surface 56 is in front of the passage 33 and its rear surface 58 is opposite the inlet orifice 28. The inner and outer expressions have the same meaning as the same terms used for the connector body 14, the bore 26 and the axis 27.

  The ring 54 of the retaining member 16 has an outer cylindrical surface 55 sized to fit in the cylindrical surface 44 of the bore 26. A chamfer 57 is provided to face the chamfer 46 of the bore 26 when the retainer is placed therein.

  An annular extension 62 protrudes axially from the front of the ring 54. The outer cylindrical surface 63 of the extension 62 is dimensioned to fit with a narrow guide clearance in the cylindrical sealing surface 48. The extension 62 has an annular radial surface 64 before. When the retaining member 16 is placed in the bore 26 of the connector body 14, the annular extension 62 is placed in the part defined by the cylindrical sealing surface 48 and cooperates to ensure a fluid-tight connection with the attached 18.

  The ring 54 and the extension 62 are traversed by a passage 60. This passage is dimensioned so as to surround the cylindrical portion 24 of the tube 20 constituting the male member 12.

  The retaining member 16 as presented comprises two first locking members 66 and two second locking members 68. The locking members 66 and 68 are situated axially behind the ring 54. The locking members 66 and 68 are configured in similarly except that the locking members 68 have deflection surfaces or deflection shaped ramps 116 as will be detailed later. The identical members 66 and 68 are in each case diametrically opposed to one another, thereby defining an alternation of locking members 66 and 68. The purpose of this alternation between the locking members 66 and 68 with the Ramp 116 will be explained below.

  The locking members 66 and 68 are cantilevered with respect to the ring 54 and extend axially from its rear surface 58. An elongate slot 72 axially directed separates the adjacent locking members 66 and 68. The slots 72 create an interval for receiving the members 66, 68 when they are deflected radially inwards as they pass through the bore 26 of the body 14. The first outer surface 84 in the form of a ramp and the second outer surface 86 in the form of a ramp form a generally conical outline, external, discontinuous, for the locking arms 80 which diverge from the front abutment surface 82 towards the rear abutment surface 88.

  Each locking member 66, 68 comprises two relatively thin branches 74, extending axially from the rear radial surface 58 of the ring 54. These branches flex to allow the locking members 66, 68 to move radially towards the inside when the retaining member 16 is assembled to the male member 12.

  The branches 74 of each locking member 66, 68 are connected by a rear bar 76 constituting the rear axial end 70 of each locking member. The connecting bars 76 have an outer surface having the same diameter as the axial cylindrical surface 36 of the bore 26. The connecting bars 76 have a curved inner surface 78 corresponding to the largest diameter of the passage 60 of the retaining member to create and a spacing from the cylindrical portion 25 of the tube 20 and allow the connecting webs 76 to approach radially inward towards the surface 25 during the assembly movement.

  The two branches 74, the ring 54 and the rear link bar 76 of each locking member 66 and 68 define a window 79. Each locking member 66 and 68 further comprises a locking arm 80 in the shape of a spout. The duckbill arms extend axially forwardly into the window 79 from the connecting bar 76 between the two branches 74. The duckbill locking arms 80 are separated from the branches 74 by slots 77. Each locking arm 80 is thus connected to the locking member 66 or 68 at the connecting bar 76. This arrangement allows a relative movement or bending movement of the locking arms 80 at the junction of the connecting bar rear 76 during the introduction of the retaining member 14 through the inlet port 28 when it is installed on the male member 12. These thin branches 74, relatively long, also provide the flexibility to allow be inserted through the inlet port 28.

  Each locking arm 80 has a forward stop surface 82 at its forward end and a first inclined outer surface 84 and a second inclined outer surface 86 connected to the rear stop surface 88. The rear stop surface 88 is located radially beyond the junction between each locking arm 80 and the rear linkage bar 76.

  The locking arms 80 are formed so that when the retaining member 16 and the male member 12 are installed in the body 14, the forward abutment surface 82 of each locking arm 80 is rotated (or comes into stop) against the rear surface 23 of the bead 22 and that the rear abutment surface 88 of each locking arm 80 is opposite (or abuts) against the annular radial surface 38 in the bore 26 of the body 14. The locking arms 80 thus ensure the removable locking of the male member 12 in the connector body 14. The inner cylindrical surface 94 of each locking arm 80 extends rearwardly from the forward abutment surface 82. This surface is formed substantially with the same diameter as the cylindrical portion 25 of the tube 20 and bears on this outer cylindrical portion 25 of the tube 20, behind the bead 22.

  Due to the relative dimensions of the radial dimension of the bead 22 of the male member 20 and the annular radial surface 38 of the body 14, each locking arm 80 has a discontinuous conical shape which diverges from the rear end of the cylindrical surface 94 of each locking arm 80 to the inner surface 78 of the connecting bar 76. This shape corresponds to a ramp or cam surface 92.

  The ramp surfaces 92 cooperate with the bead 22 of the male element 12 when the retaining member 16 is installed on the male member 12, to disengage radially outwardly, the locking arms 80 and allow the bead 22 to come to a position in front of the frontal abutment surface 82 and behind the rear radial surface 58 of the ring 54.

  The first ramp-shaped outer surface 84 and the second ramp-like outer surface 86 of each locking arm 80 constitute a deflection surface; they cooperate with the inlet chamfer 40 and with the axial cylindrical surface 36 at the inlet opening 28 during the introduction of the retaining member 16 into the bore 26 of the connector body 14. This contact produces the radial depression or deflection of the elements 66 and 68 to allow their passage through the inlet opening 28. The junction of the locking arms 80 to the rear connection bars 76 and the elongate configuration of the branches 74 in the axial direction provide the necessary flexibility to allow the retaining member 16 to pass through the inlet of the opening 28 defined by the cylindrical surface 36, even when the retaining member 16 is already installed on the male member 12.

  The locking elements 68, two in number, also include ramps 116 which extend radially outwardly from the outer radial surface of each branch 74. The ramps 116 form a deflection surface 117, inclined, s extending from the front end 118 to the rear end 120. The slope is directed radially outwardly from the forward end 118 toward the rear end 120. The forward end 118 is located axially forward of the front stop surface 82 of the locking arm 80 in the shape of a duckbill. The deflection surfaces 117 are thus positioned axially in front of the first ramp-like outer surface 84 of the locking arms 80. The angle of the deflection surface 117 of the ramps 116, with respect to a horizontal line defined by the The axis 27 of the illustrated embodiment is not as large as the angle of the first ramp-like outer surface 82 of the locking arms 80. By way of example, the angle of the deflection surface 117 ramps 116 is 15 to 18 relative to the horizontal direction. The angle of the first ramp-like outer surface 82 is 35 to 40 and the angle of the second ramp-like outer surfaces 84 is 18 to 20.

  Upon introduction of the retainer 16 into the inlet port 28, the surfaces 117 of the ramps 116 contact the chamfer 40 before any other portion of the first ramp-like outer surface 84 or the second ramp-like outer surface 86 does not reach the locking arms 80. This contact pushes the locking elements 68 radially inwardly before the radial inward movement of the locking elements 66. As a function of As the introduction progresses, the first ramp-like outer surface of the locking arms 80 of the locking members 66 encounters the chamfer 40 and the incoming movement of the locking members 66 begins. As the introduction of the retainer 16 progresses through the inlet of the opening 28, the first ramp-like outer surfaces 82 of the two locking members 66 and 68 come into contact with the axial cylindrical surface. 36. All the locking elements are then deflected inwards and are followed by the contact of the second ramp-like outer surface 84 of the locking arms 80, which terminates the insertion movement.

  The retainer 16 is preferably molded into a polymer having the appropriate strength and flexibility. A suitable polymer is a polyetheretherketone (PEEC). Such a product is available under the trademark Victrex PEEKTM 450G from Victrex USA, Greenville, SC. A retaining member molded in this material has the strength necessary to maintain the fluid coupling under pressure conditions. It also provides the flexibility required to allow the installation of the retaining member 16 on the male member 12 in the bore 26 of the connector body 14 without damaging the retaining member during the assembly operation.

  The seal 18 is an annular, elastomeric O-ring which seals between the cylindrical sealing surface 48 and the cylindrical portion 24 of the male member 12. The outer diameter of the O-ring 18 is slightly greater than the diameter. of the cylindrical sealing surface 48 and the inner diameter of the O-ring 18 is slightly smaller than the diameter of the cylindrical portion 24 of the male member 12. When the fluid system is at working pressure, the O-ring creates the sealing to the fluid with respect to the surfaces as well as with respect to the front radial annular surface 64 of the retaining member 16.

  Advantageously, the quick connector according to the invention allows the assembly formed of the retaining member 16 of the seal 18 and the male member 12 as a preassembled assembly in the connector body. This feature is particularly useful in applications in which the shape of the connector body is a component of a fluid system. Typically, tube bundles and corresponding connectors are provided by one manufacturer and the system components of another. Significant savings in time and cost are realized if the system components are already installed in the assembly of which it is part and if the tube bundle tubes are then connected to the components to complete a circuit. This interesting solution is suitable, for example, for the construction of motor vehicles. In this type of assembly it is no longer necessary to have a separate connector body with a hole 26 as an additional seal between the connector body constituting a separate component and the fluid system 16 such as for example an assistance pump. or the like.

  According to the present invention, the male element 12, the retaining member 16 and the seal 18 are combined in the form of a subassembly and then introduced into the bore 26 of the connector body 14 constituting the fluid component. . This solution is suitable for situations in which, for example, the tube 20 belonging to a fluid system is supplied by a supplier other than the manufacturer or supplier of the component of the connector body 14 and the final assembly is done at one end. other place. The retainer 16 according to the present invention and its O-ring 18 are advantageous for applications in which they are first installed in the piercing of a component forming the connector body. From this point of view, the extension 62 of the retaining member 16 and its cooperation with the O-ring 18 in the bore 26 is an effective arrangement for providing a seal between the connector body 14 and the male member 12. whatever the assembly order used.

  To make the subassembly is positioned the retaining member 16 on the male member 12, the bead 22 of the tube 20 between the front abutment surface 82 of the locking arms 80 and the rear surface 58 of the ring 54 The contact between the bead 22 of the male member 12 and the inner cam surfaces 92 of the locking arms 80 of the locking members 66, 68 spreads the arms radially outwardly. This bending movement is ensured by flexing the elongate branches 74 and the elasticity of the material of the retaining member.

  As soon as the bead 22 of the male member 12 is in the space between the forward abutment surfaces 82 of the arms 80 and the rear surface 58 of the ring 54 of the retaining member 16, the locking arms 80 escape radially inwards. At this level, the bead 22 of the male member 12 abuts between the rear surface 58 of the ring 54 and the forward abutment surfaces 82 of the arms 80.

  The cylindrical surfaces 94 are closely spaced opposite the cylindrical portion 25 of the tube 20.

  The seal 18, in the form of an O-ring, is then placed directly in the vicinity of the annular radial surface 64 of the annular extension 62 of the retaining member 16 on the cy-lindrical portion 24 of the tube 20 to terminate the slot. -together.

  The combined elements including the male member 12, the retainer 16 and the O-ring 18 are joined to the connector body 14 to terminate a fluid-tight connection. The insertion of the male element 12, the O-ring 18 and the retaining member 16 in the connector body 14 requires that all the elements pass through the inlet orifice 28 formed by the cylindrical surface 36. elements must pass through the annular space defined by the cylindrical portion 24 of the tube 20 and the cylindrical surface 36 of the bore 26.

  As shown in FIG. 7, the deflection surfaces 117 of the ramps 116 of the locking elements 68 make the initial contact with the chamfer 40. The inclined deflection surfaces 117 of the ramps 116 of the locking elements 68 meet the front chamfer 40 the first ramp-like outer surfaces 84 of the locking arms 80 of the locking members 66. Locking members 68 flex radially inwardly relative to the ring 54 prior to the inward radial movement of the locking members 66 which starts only after the first ramp-like outer surface 84 of the locking elements has touched the chamfer 40. The result is an inward sequential deflection, locking arms 68 followed by the locking arms 66. As a result, the rear link bars 76 of the locking arms 68 enter radially before the similar movement. rear connection strips 76 of the locking elements 66.

  During the insertion operation, the inner cylindrical surfaces 94 of the locking arms 80 bear on the cylindrical portion 25 of the tube 20. The contact of the surfaces 117 of the ramps 116 and the inclined outer surfaces 84 and 86 of the locking arms 80 deforms the retaining elements or bends them so as to retract rear link bars 76 towards the tube 20 and allow the locking elements 66, 68 to pass through the inlet opening defined by the cylindrical surface 36 and the cylindrical portion 25 of the tube 20 of the male member 12. Multiple bending movements in the retaining member 16 are predictable. It is assumed that the locking arms 80 flex relative to the rear link bars 76 to allow movement of the rear link bars 76 to the tube 20. During this movement, the lock arms 80 pivot about the contact of the surfaces. cylindrical inner 94 relative to the cylindrical portion 25 of the tube 20. This bending occurs in the branches 74.

  When the male member 12, the retaining member 16 and the O-ring 18 are fully inserted into the connector body 14, the locking members 66 and 68 move elastically radially outwardly until the outer surfaces of the rear link bars 76 are closely spaced from the inner cylindrical surface 36 defining the inlet opening 28.

  According to FIG. 8, when the retaining member 16 is completely inserted, it is placed in stress radially and axially in the connector body 14. The cylindrical extension 62 of the retaining member 16 is housed in the cylindrical surface of the sealing 48 for directing the retaining member 16 radially in the connector body 14.

  The cylindrical surface 55 of the ring 54 is in the cylindrical surface 44 of the bore 26, the annular shoulder 45 directed radially inwards abutting against the radial front surface 56 of the ring 54. This contact limits any advancing movement of the rear abutment surfaces 88 of the locking elements 66, 68 abutting against the radial surface 38 of the body 16; this also limits the recoil movement of the retaining member 16.

  The retaining member 16 being locked in the bore 26 of the connector body 14, the O-ring 18 and the male element 12 are also locked in the bore 26 of the connector body 14. The cylindrical portion 24 of the male element 12 is housed in the inner cylindrical surface 60 of the ring 54 and the extension 62. In addition, the narrow guide relationship between the cylindrical portion 24 of the tube 20 and the cylindrical surface 52 of the bore 26 forms a guide portion 32 of the male element which directs the male element 12 with respect to the piercing 26.

  The abutment of the rear radial surface 58 of the ring 54 against the front surface of the bead 22 blocks any further action of introduction of the male element 12. The abutment of the rear surface 23 of the bead 22 against the abutment front surfaces 82 of the locking arms 80 prevents further advancement of the male member 12. That is why the male member 12 is blocked radially and axially in the retaining member 16 and also in the piercing 26 of the connector body 14.

  In the installed position, the O-ring 18 is in the space defined by the front annular radial surface 64 of the annular extension 62, the annular radial surface 50 of the axial bore 26, the cylindrical portion 24 of the male member 12 and the cylindrical sealing surface 48 of the axial bore 26. Thus the O-ring is positioned to abut against the radial annular surface 64 of the annular extension 62 of the ring 54. The outer diameter of the O-ring 18 is slightly greater than the diameter of the cylindrical sealing surface 48 and the inside diameter is slightly smaller than that of the cylindrical surface 24 of the tube 20. The O-ring 18 is thus compressed radially between the male element 12 and the cylindrical sealing surface 48. Under operating conditions, when the fluid system is pressurized, the O-ring is forced against the radially annular front surface 64 of the extension annular member 62 pushing the retaining member. The axial load applied to the O-ring 18 by the pressure of the fluid is transmitted to the connector body 14 by the rear stop surfaces 88 of the locking arms 80 acting on the annular radial surface 38 in the bore 26. These forces push the O-ring in sealing contact with the cylindrical sealing surface 48, the cylindrical portion 24 of the tube 16 and the front radial annular surface 64 of the retaining member 16 to form a fluid-tight seal.

  While the embodiment described above uses ramps 116 extending radially outwardly from the legs 74 of the locking members 68 defining the deflection surfaces 117 to ensure that the locking members 68 flex radially. inwardly before the locking members 66, according to the present invention, other designs of retaining members are used which allow the sequential movement of the locking members. It is envisaged, for example, to have a single locking member 68 provided with ramps 116. Another possible variant consists in installing a ramp 116 only on a branch 74 of each locking element 68. Another example of an alternative construction of the retaining member 16 comprises placing the first ramp-like outer surface 84 of the locking members 68 before the first ramp-like outer surfaces 84 of the locking arms 80 of the locking member 66. In this approach, the first Ramp-like surfaces 84 of the forward locking members 86 initially function as deflection surfaces and likewise produce inward sequential radial movement of the rear link bars 76 of the locking members 68 preceding the movement. radial towards the inside of the rear connection bars 76 of the locking members 66.

  Figures 9-17 show another development of the present invention. There is provided a protective cap 132 covering the retainer 16 and the O-ring 18 to protect them during transport to another point of use of the assembly. Figure 9 shows the subassembly with protective cap generally bearing the reference 130; this subassembly 130 consists of the protective cap 132 surrounding the retaining member 16 and the O-ring 18. The tube end 12, the retaining member 16 and the seal 18 correspond to what has already been described in FIG. relationship with Figures 1 to 8.

  The protective cap 132 is shown in Figures 10 to 13. This cap is molded of a polymer such as high density polyethylene, nylon (registered trademark) or other suitable material. In general, the protective cap 132 has an annular shape and comprises a sleeve 134 whose front end 135 is closed; it comprises a ring 136 with a conical front portion 138 and a cylindrical rear portion 140 spaced rearwardly with respect to the sleeve 134. Two diametrically opposed legs 152 each connect the rear end of the sleeve 134 to the narrow end of the sleeve. conical portion 138 of the ring 136.

  The sleeve 134 and the ring 136 are coaxial with respect to the axis 137. The sleeve 134 forms the internal passage 142 of diameter slightly greater than that of the cylindrical portion 24 of the tube 20 of the male element 12. It is sized to receive the tube end 21 as well as the cylindrical portion 24 of the tube 20 when the subassembly 130 is attached to a male member 12.

  The ring 136 of the protective cap 132 forms a through passage 148 from the inlet port 150. When the retainer 16 and the O-ring 18 are placed in the protective cap 132, the ring 136 covers generally the locking members 66, 68. The inner cylindrical surface 144 of the ring 136 is sufficiently large to permit radial outward movement of the locking members 66, 68 and the passage of the bead 62 when the protective cap 132, the O-ring 18 and the retaining member 16 are fixed to the male element 12 as will be explained later. The inner conical surface 146 of the conical portion 138 is dimensioned to closely cover the outer conical extension of the locking arms 80 of the locking members 66 defined by the first ramp-shaped outer surface 84 and the second outer shaped surface. ramp 86 of each locking arm 80. As explained in more detail later, when the inner conical surface 146 is so placed, it prevents any radial outward movement of the locking members 66 and 68 relative to the ring 54 of the body of the retaining member 16.

  Two clipping lugs 154 are provided radially outside the rear end of the sleeve 134; these snap tabs 154 are diametrically opposed to each other between the branches 152. Each snap tab 154 comprises an operating member 158 connected to the rear end of the sleeve 134 by a narrow neck 156 allowing the Clipping tab 154 to flex relative to the remaining portion of the protective cap 132. Each clipping tab 154 has a front surface 162 and a rear surface 164.

  A hook 160 axially extends the rear of the rear surface 164 of each actuator 158. The hook 160 has a shape decreasing from a broad base at its connection with the surface 164 towards the radial surface of end 165 at its free end. The hooks 160 are intended to retain the retaining member 16 removably in the protective cap 132.

  Each hook 160 has an abutment surface 166, conical, from the radial end surface 165 to the axial surface 167 facing inwards. The conical surface 166 has a low radius surface 167 which facilitates the insertion of the O-ring 18 into the gap defined by the inner surface of the hooks 160 and the branches 152. The angled surface 166 of each hook 160 can cooperate with each other. with the chamfer 57 of the seal 54 of the retaining member 16 when the retaining member 16 is fixed in the protective cap. This cooperation bends the hooks 160 and pivots them around their narrow neck 156 so that the ring 54 of the retainer 16 is placed between the hooks.

  The axial surface 167 of each hook is spaced from the inwardly facing axial surface 167 of the other hook 160 by a distance less than the outside diameter of the outer cylindrical surface 55 of the ring 54 of the body. The front surface 167 of each hook 160 has a radial, forwardly facing, attachment surface 168 which extends to the axially extending surface 169. The surfaces 169 of each axially extending hook 160 are spaced apart by a distance greater than the diameter of the outer cylindrical surface 55 of the ring 54 of the retaining member 16. The hooks are sized to grip the ring 54 of the body of the retaining member 16 in windows 79 diametrically opposed to the attachment surfaces 168 covering the radial surface 58 facing rearwardly; the surfaces 169 extend in the axial direction and cover the outer cylindrical surface 55.

  Each axially extending surface 169 joins a forward conical surface that converges toward the axially extending surface 170. The surfaces 170 of the hooks 160 are spaced a distance slightly greater than the diameter of the front cylindrical extension 62 of the retaining member 16. Preferably, the surfaces 170 are spaced a distance slightly less than the outer diameter of the O-ring 18 so as to retain the O-ring 18 by friction. The axially forwardly extending surfaces 170 meet the radial stop surfaces 171 which form the rearward extension of the narrow neck portions 156.

  When an O-ring 18 and a retaining member 16 are placed in the protective cap 132, the hooks 160 pass through the windows 79 of each pair of locking members 66 or 68. The O-ring 18 is adjacent to the radially upper surfaces 171 between the front axial surfaces 170. The annular extension 62 and the ring 54 of the retaining member 16 are located between the O-ring 18 and the forwardly facing radial surfaces 168 of the hooks 160 which are in a front-to-back relationship with each other. The surfaces 169 which extend in the axial di-rection are closely spaced relative to the outer cylindrical surface 55 of the ring 54. O-ring 18 and retaining member 16 are detachably retained in the protective cap 132.

  The axial distance between the forward radial surfaces 168 of the hooks 160 and the radial abutment surfaces 171 in the narrow neck portion 156 is slightly greater than the combined axial thickness of an O-ring 18, the axial extension of the extension. front ring 62 and the ring 54 of the retaining member 16. However, the O-ring 18 is slightly compressed in the radial direction between the axially extending surfaces 170 extending forwards from the hooks 160. The restoring force exerted by the O-ring, elastic, promotes the detachable connection of the O-ring in the range of the hooks 160 to the installation on the male member 12.

  The branches 152 have an axial length such that with the O-ring 18, the annular extension 62 and the ring 54 of the retaining member 16 hooked by the hooks 160 as shown in Figure 14, the inner conical surface 146 of the ring 136 is sufficiently spaced from the ramp-like outer surfaces 84 and 86 of the locking arms 80 to allow them to radially outwardly apart in contact with the bead 22 of the tube with the cam surfaces 92. However, in the absence of O-ring 18, the protective cap 132 can slide axially with respect to the retaining member 16, sufficiently, so that the inner conical surface 146 is closely spaced above the second outer surfaces. In this position, the radially outward movement of the locking arms 80 is not possible, which prevents the bead 62 from being able to pass over. lock arms 80.

  This sliding can and must occur when trying to fix the protective cap 132 and the retaining member 16 on the male element 12 in the absence of O-ring 18 (see Figure 17). This action avoids the total assembly and signals the absence of O-ring 18 which avoids a bad assembly with the O-ring 18.

  The protective cap 132 further comprises two radial stops 172 spaced apart by about 180. Each stop is aligned with a snap tab 154. The stops are radially protruding from the outer surface of the sleeve 134 at an axial distance forward of the front surface 162 of an associated actuator 158. The distance between each actuator 158 and the corresponding stop 173 is such that it allows the clipping lug 154 to pivot in a position such that the hooks 160 are radially disengaged from the outer cylindrical surface 55 of the annular portion 54 of the retaining member 16. This movement allows the removal of the protective cap 132 as soon as the O-ring 18 and the retaining member 16 are assembled on the male member 12. The abutments 173 prevent the fastening lugs 154 from bending on each other. the other which would break the necks 156 of the protective cap 132.

  The removal of the protective cap 132 can be done immediately after the fixing of a male element 12 or after this installation. However, this step precedes the assembly of the male element 12 to the connector body 14.

  To form the subassembly 130 with the connecting cap is introduced an O-ring 18 in the open end 150 of the passage 148 of the ring 136. It is thus placed between the axial surface before 170 of the hooks 166 in space defined by the branches 152 and the hooks 160 abutting against the radial stop surfaces 171 installed in the narrow neck portions, 156. The retaining member 16 is introduced through the bore 148 of the ring 136 to that the chamfer 57 of the retaining member 16 abuts against the conical abutment surface 166 of each hook 160. The protective cap 132 and the retaining member 16 are aligned in the circumferential direction so that the axial movement of the cap 132 and that of the retaining member 16 make the free ends of the hooks 160 come into the diametrically opposite windows 79 of each locking element 66 or locking elements 68.

  If the introduction of the retaining member 16 axially into the protective cap 132, the chamfer 57 of the ring 54 of the retaining member 64 again pushes the conical surface 166 of each hook 160 so that the Associated actuator 58 leaves at the narrow neck portion 156. The hooks 160 deviate by their free ends allowing the ring 54 to pass the axial surfaces 167. As shown in FIG. 14, as soon as the surface The rearwardly directed radial 58 of the ring 54 has passed the axial surface 167, the elasticity of the polymer of the protective cap 132 allows the actuators 158 and the hooks 160 to return to their normal unflipped position. The attachment surfaces 168 of the radially forwardly facing hooks 160 grip the rearward facing radial surface 58 of the ring 54 to terminate the subassembly with the connector cap 130.

  In the assembled position, the free end of each hook 160 is in the corresponding window 79 of a locking member 66 or 68 of the retaining member 16. The radial attachment surface 168 abuts against the rear radial surface 58 of the ring 54, avoiding that the retaining member 16 can move back in the axial direction relative to the protective cap 132. The O-ring 18 is placed axially in front of the radial annular surface before 64 of the cylindrical extension 62. The O-ring 18 is retained in the protective cap 132 between the front annular surface 64 and the radial abutment surfaces 171 and between the diametrically opposed opposite axial surfaces 170.

  The cap-connector subassembly 130 having the protective cap 132 with the O-ring 18 and the retainer 16 housed therein may be provided elsewhere to be assembled to the male member 12. The tubes with the sub The cap-connector assembly 130 can be assembled on the male member 12 to then complete the fluid-tight connection with the body 14. In each case the protective cap 132 is removed from the subassembly 130 before attaching the male member 12 to the connector body 14. For this removal, the actuating members 158 are bent towards the radial abutments 173 to separate the hooks 160 sufficiently and release the cap 132 from the retaining ring 54.

  According to FIGS. 15 and 16, the cap-connector subassembly 130 is fixed to the male element 12 by the relative axial movement of the cap on the free end 21 of the tube 20 until the cam surfaces are over. Interiors 92 of the locking arms 80 of the locking members 66 and 68 of the retaining member 16 come into contact with the bead 22 of the male member 12 (see Figure 15). The diameter of the bead 22 is greater than the diameter defined by the inner cylindrical surfaces 94 of the locking arms 80. The axial force of the relative axial movement of the cap 130 on the tube 120 makes the locking arms 80 of the retaining member 16 deviate radially. As soon as the arms 80 have passed the bead 22 of the male member 12, the arms 80 spring back inwardly to the assembled position shown in FIG. 16. In this assembly position, the bead 22 of the male member 12 is in abutment between the rear surface 58 of the ring 54 and the front abutment surface 82 of the locking arms 80; thus the retaining member 16 can not slide axially along the male member 12. The O-ring 18 is also placed on the cylindrical surface 24 of the tube 20 in front of the annular extension 62 of the ring 54. inner diameter of the O-ring 18 as-sure its blocking on the surface 24 and its retention in place.

  According to the present invention, the protective cap 132 is installed so that the O-ring 18 is in front of the retaining member 16 with the subassembly 130. The subassembly 130 of the connector must have the O-ring 18 to be assembled. 12. If the O-ring 18 is not placed axially in front of the retaining member 16, the movement of the connector-cap subassembly 130 axially with respect to the male member 12 moves the cap 132 axially with respect to the retaining member 16 until the inner conical surface 146 of the gasket 136 overlaps tightly with the second ramp-like outer surface 86 of the locking arms 80. The inclined or conical abutment surface 166 of each hook 160 comes into narrow abutment with the first ramp-like outer surface 84 of the associated locking arm 80. As previously explained, this relationship between the locking members 66 and 68 and the cap protector 132 prohibits the end of the assembly of the protective cap 132 and the retaining member 16 on the tube 20. The situation resulting from the absence of the O-ring 18 of the subassembly 130 is shown in FIG. 17.

  To insert the male element 12 in the bore 26 of the connector body 16, the protective cap 132 must first be removed. For this, the two actuators 158 are pulled towards the stop 173. The clipping tabs 154 pivot towards the before radially spacing the hooks 160. As soon as the radial surfaces 168 are radially-outside the outer cylindrical surface 55 of the ring 54 of the retaining member 16 can be removed the protective cap 132 in the advancing in the axial direction relative to the male member 12. With the protective cap 132 removed, the male member 12 can be inserted with the O-ring 18 and the retaining member 16 into the bore 26 of the connector body 14 as already described above.

Claims (27)

  1) fluid quick connector comprising a connector body, receiving a tube or male member with interposition of a retaining member provided with locking members for retaining the male member in the connector body, characterized in that - the connector body (14) has a bore (26) receiving a tube (20) axially passing through (27) a surface defining an inlet opening (28), - the retaining member (16) is introduced axially (27). ) in the bore (26) of the connector body (14) through the inlet (28), said retaining member (16) having a body portion received in the bore and at least two locking members (66) , 68) extending rearwardly from the body portion towards the inlet opening (28), these two locking members (66, 68) being deformable radially inward when introducing the retaining member (16) through the inlet (28), - the locking members (66, 68) have each at least one deflection surface (117) cooperating with the surface defining the inlet port (28) during the introduction of the retaining member (16) into the bore (26), this deflection surface of at least one of the two locking members (66, 68) being arranged axially in front of at least one deflection surface (117) of another locking member of at least two locking members, direction of the portion of the retaining member (16) and cooperating with that inlet defining the front surface, the engagement of the opening surface defining the inlet by at least one deflection surface of the other of the two locking members.
  2) connector according to claim 1, characterized in that at least one of the locking members (66, 68) has at least one deflection surface disposed axially in front of at least the deflection surface of the other of the two locking members comprising at least one ramp forming at least one deflection surface.
  3) connector according to claim 2, characterized in that the body of the retaining member (16) comprises a ring (54) and the locking members (66, 68) comprise at least one branch extending axially towards the l rearwardly of the ring (54) and at least one ramp (116) on at least one locking member (66) is provided on at least one branch (74).
  4) Connector according to claim 3, characterized in that the locking member (66) having at least one ramp (116) is provided with two branches (74) each having a ramp and in particular the retaining member (16) comprises two locking members (66) having a ramp on each leg (74) and in particular two locking members (66) having a ramp on each leg (74) and two other locking members (68).
  5) Connector according to claim 4, characterized in that the two locking members (66) with ramps (116) on each branch are arranged diametrically opposite one another and the other two locking members (68). ) are diametrically opposed to one another between the locking members (66) provided with ramps (116).
  6) Connector according to claim 3, characterized in that each of the locking members (66) comprises a locking arm (80) carried by at least one branch (74) or between the branches (74), the arms of lock (80) having a forward stop surface (82), a rear stop surface (88) and an inclined outer surface (86) extending therebetween and forming a deflection surface (117) for the locking member .
  7) connector according to claim 6, characterized in that at least one deflection surface (117) defined by at least one ramp is axially in front of the deflection surfaces (84) of the locking arms (80).
  8) A connector according to claim 6, characterized in that the connector body (14) has an inner annular radial surface (38) in the inlet port (28) and the connector comprises a tubular element (20) with a outer cylindrical portion (24) and an annular bead (22) projecting radially from said cylindrical portion (24), the tubular member being housed in a bore (26) of the connector body (14) having abutment surfaces (38) for locking arms (80) abutting against the bead (22) and the rear stop surfaces (88) of the locking arms (80) abutting against the annular radial surface (38) of the connector body (14).
  9) Connector according to claim 1, characterized in that it comprises at least one seal (18) and the retaining member (16) comprises an extension (62) forwards with a radial annular surface (64) before abutting against the seal (18).
  10) connector according to claim 8, characterized in that it comprises an O-ring (18) housed in the bore (26) of the connector body (14) surrounding the outer cylindrical portion of the tube (20) and the body of retainer (16) has an annular extension (62) extending forwardly of the ring (54), this annular extension (62) having a radially annular front surface (64) abutting the O-ring (18).
  11) Connector according to claim 1, characterized in that it comprises an O-ring (18) placed in the bore (26) of the connector body (14) surrounding the cylindrical surface (24) of the tube and in relation to sealing with the body (14) and the retaining member (16) comprises an annular extension (62) towards the front of the body of the retaining member (16) with a radial annular surface (64) abutting against the O-ring (18), the forward annular radial surface (64) receiving the axial load applied to the O-ring (18) by the pressurized fluid.
  12) Fluid connector having a connector body (14) forming a bore (26) receiving a tube of a tubular male member (12) with an outer cylindrical portion (24) housed in the bore (26), an O-ring (18) housed in the bore (26) sealingly with the connector body (14) and the outer cylindrical surface (24) of the male member (12), a retaining member (16) housed in the bore ( 26) having a body portion and at least one locking member (66, 68) removably retaining the male member (12) in the bore (26), the retaining member (16) having an annular extension ( 62) with a front radial annular surface (64) abutting against the O-ring (18).
  Connector according to claim 12, characterized in that the bore (26) of the connector body (14) has a cylindrical sealing surface (48) surrounding the cylindrical portion (24) of the tubular male element (12). and the O-ring (18) is in sealing relationship with the cylindrical sealing surface of the connector body (14).
  14) A connector according to claim 13, characterized in that the connector body (14) has an annular radial surface in the bore (26), the male, tubular member (12, 20) having a radial bead (22) protruding on its cylindrical portion (24) and the retaining member (16) comprises locking arms (80) forming abutment surfaces cooperating with the bead (22) and the annular radial surface.
  A method of making a fluid connector comprising a connector body (14) with a tube receiving bore (26) and a surface defining an inlet port (28) and an annular radial surface (38). ) in the bore (26), a tubular member (20) with an outer cylindrical portion (24) and a radially projecting annular bead (22), a retaining member (16) with a body portion, at least one member locking member (66, 68) extending rearwardly thereof at at least one locking member (66) having a locking arm (80) with a forward stop surface (82) and a rear stop surface (88), a seal (18) for sealing connection between the connector body (14) in the bore (26) and the cylindrical surface of the tubular element (20), characterized in that that the retaining member (16) is fixed to the tubular element (20), its forward abutment surface being abutting against the bead (22), fixing the seal (18) to the tubular element (20) in front of the retaining member (16) and introducing the tubular element (20), the seal (18) and the retaining member (16) in the bore (26) of the connector body (14) through the inlet port (28) and positioning the rear stop surface (88) to abut against the annular radial surface (38) of the bore (26).
  16) Method according to claim 15, characterized in that - a protective cap (132) is made, the sealing member (18) and the retaining member (16) are fixed to this protective cap (132). or - the gasket (18), the retaining member (16) and the protective cap (132) are attached to the tubular element (20) and the protective cap (132) is removed from the tubular element (20), the seal (18) and the retainer (16) before introducing the seal (18), the retainer (16) and the tubular member (20) into the connector body (14) through its inlet port (28).
  17) Method according to claim 16, characterized in that it ensures that the sealing element (18) is in the protective cap (132) when attaching the tubular element (20), and in that relative axial movement between the protective cap (132) and the retaining member (16) is allowed in the absence of a seal (18) to prevent the attachment of the protective cap (132) and the retaining member (16) on the tubular member (20).
  18) Protective cap subassembly for a connector according to
one of claims 1 to 14,
  having a protective cap (132) having a sleeve (134), a ring (136) spaced from the sleeve and at least one leg (152) connecting the sleeve (134) to the ring (136) and at least one leg clipping (154) extending from the sleeve (134), a seal being radially in at least one leg and the clipping lug (154) and a retaining member (16) having an annular portion (54); ) releasably connected to the protective cap (132) by at least one clipping lug (154), configured to flex, and releasing the retaining member (16) relative to the protective cap (132).
  19) protective cap subassembly according to claim 18, characterized in that the protective cap (132) comprises two clipping lugs (154) extending radially from the sleeve (134), each of the clipping lugs having a hook (160) directed axially to the ring (136), the hooks (160) releasably connecting the ring (54) of the retaining member (16), the clipping lugs (154) having in addition a collared neck to bend and allow to release the hooks (160) relative to the ring (54) of the retaining member (16).
  20) protective cap subassembly according to claim 19, characterized in that the retaining member (16) has a front annular extension (62) extending towards the seal (18) and the clipping lugs (154). ) form radial abutment surfaces (168) and the sealing member (18) is placed between the radial abutment surfaces and the annular extension (62) of the retaining member (16).
  21) subassembly with a protective cap according to claim 20, characterized in that the hooks (160) each comprise a radial abutment surface (168) for detachably cooperating with the annular portion (54) of the retaining member (16), the axial distance between the radial abutment surfaces of the clipping lugs (154) and the radial abutment surfaces of the hooks (160) is slightly greater than the combined axial thickness of the seal (18), the annular extension. (62) of the retaining member (16) and the annular portion (54) of the retaining member (16), the seal (18), the axial extension (62) of the retaining member (16). and the ring (54) of the retaining member (16) being located between the radial abutment surfaces of the attachment lugs and the radial abutment surfaces of the hooks (160).
  22) A protective cap subassembly according to claim 21, characterized in that the hooks (160) each form an axial surface extending forwardly spaced a distance slightly less than the outer periphery of the housing. seal (18) between the axial surfaces of the hooks (160).
  23) Protective cap subassembly according to claim 21, characterized in that the retaining member (16) comprises at least two locking members (66, 68) extending axially from its ring (54), each locking member comprises a locking arm (80), these locking members and the locking arms being able to flex radially outwardly in contact with the bead (22) of a tubular member (20) associated therewith, to enable the locking member relative axial movement of the bead (22) and the locking arm (80), the ring (136) of the protective cap (132) defining an inner conical surface positioned with a narrow gap with respect to the organ locking arm (80) for preventing bending and preventing relative axial movement of the bead (22) of the tubular member (20) and the inner conical surface of the ring (136) of the protective cap (132) is positioned at unobscured be slightly above the locking member (16) when the subassembly (130) does not include a seal (18).
  24) Protective cap subassembly according to claim 23, characterized in that at least one of the hooks (160) of the clipping lugs (154) of the protective cap (132) has an inclined abutment surface which abuts against one of the locking members (80) to prevent these locking members from bending too much radially outwardly and permitting relative axial movement of the bead (22) and locking arms (80). ) in the absence of seal (18) in the subassembly (130).
25) A protective cap subassembly according to claim 19, characterized in that the protective cap (132) further comprises an abutment member extending radially outwardly from the sleeve to the vicinity of each leg engagement member (154) and said clipping lugs (156) cooperate with the radial abutment members (171) to limit their bending movement.
  26) Subassembly with a protective cap according to claim 4, characterized in that the seal (18) is an elastomer O-ring.
  27) rapid connection assembly according to claim 1, characterized in that the retaining member (16) is a polyetherketone polymer, nylon, high density polyethylene. io
FR0652702A 2004-02-05 2006-06-29 Quick connector for fluid Pending FR2889287A1 (en)

Priority Applications (1)

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US11/174,262 US7467813B2 (en) 2004-02-05 2005-06-30 Quick connector

Publications (1)

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FR2889287A1 true FR2889287A1 (en) 2007-02-02

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Family Applications (1)

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FR0652702A Pending FR2889287A1 (en) 2004-02-05 2006-06-29 Quick connector for fluid

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JP (1) JP4837458B2 (en)
KR (1) KR101227251B1 (en)
CN (2) CN1940372B (en)
BR (1) BRPI0602459A (en)
DE (2) DE102006030428B4 (en)
FR (1) FR2889287A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8113548B2 (en) * 2005-06-30 2012-02-14 Ti Group Automotive Systems, Llc Quick connector for high pressure applications
EP2447558B1 (en) 2006-06-08 2013-05-29 NSK Ltd. Method for manufacturing a drawn cup needle roller bearing having a seal ring
US8939470B2 (en) * 2007-03-20 2015-01-27 Stephen H. Gunderson Quick connector for high pressure applications
DE102008019979B3 (en) * 2008-04-21 2009-10-01 Futuree Fuel Cell Solutions Gmbh Power supply module and power cabinet
US8664938B2 (en) * 2010-05-05 2014-03-04 Ysi Incorporated Replaceable probe head
US9283344B2 (en) * 2012-01-03 2016-03-15 Carefusion Corporation Apparatus, system, and method of fluid delivery connection
DE102013200620A1 (en) * 2012-02-09 2013-08-14 Schaeffler Technologies AG & Co. KG Connector i.e. plug connector for connecting low-pressure line between reservoir and working cylinder in motor car, has socket part with mounting device that is displaced towards connector part, and detent device latched with connector part
FR2991432B1 (en) * 2012-06-04 2015-02-06 Air Liquide Cap for fluid connection, faucet, bottle and filling method thereof
CN102734583B (en) * 2012-07-10 2013-12-18 浙江亿日气动科技有限公司 Quick joint
DE102012107463A1 (en) * 2012-08-15 2014-06-12 Contitech Schlauch Gmbh Quick connection arrangement for the detachable connection of a media line with a nozzle
FR3004780B1 (en) * 2013-04-17 2015-05-01 Raymond A & Cie Lock for tubular connection and tubular connection obtained
CN104622536B (en) * 2013-11-15 2017-01-25 上海理工大学 Quick-changing connector for connection of deep vein thrombosis removing machine and power device
US20150354741A1 (en) * 2014-06-10 2015-12-10 Kohler Co. Quick connect system for a fluid coupling
CN104295833A (en) * 2014-07-26 2015-01-21 黄子颀 Self-buckling type pipe connector with spring
CN105443888A (en) * 2015-12-16 2016-03-30 廊坊舒畅汽车零部件有限公司 Crankcase ventilation pipe joint
DE102016208558A1 (en) * 2016-05-19 2017-11-23 Bayerische Motoren Werke Aktiengesellschaft Cap for fluid lines, fluid line with such a cap and motor vehicle with such a fluid line
US10502353B2 (en) 2016-05-27 2019-12-10 Kohler Co. Quick connect release system for a fluid coupling

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5626371A (en) * 1990-01-16 1997-05-06 Bartholomew; Donald D. Quick connector with one-piece retainer
US5324082A (en) * 1991-08-29 1994-06-28 Bundy Corporation Positive transition quick connect coupling
US5161832A (en) * 1991-10-16 1992-11-10 Huron Products Industries, Inc. Plastic retainer for fluid coupling
US5429395A (en) * 1994-05-20 1995-07-04 Bundy Corporation Retainer arrangement for extreme load applications
US5628531A (en) * 1995-04-26 1997-05-13 Bundy Corporation Quick connector with secondary latch
DE19619026A1 (en) * 1996-05-10 1997-11-13 Trinova Gmbh quick coupling
DE19822574C1 (en) * 1998-05-20 1999-10-14 Raymond A & Cie Fuel line quick coupling for motor vehicle
US6173994B1 (en) * 1999-08-20 2001-01-16 Ti Group Automotive Systems Corp. Coupling assemblies for providing fluid connection
IT1311355B1 (en) * 1999-11-12 2002-03-12 Dayco Europe Srl Tube with integral quick coupling.
US6612622B2 (en) * 2000-04-06 2003-09-02 Itt Manufacturing Enterprises, Inc. Rotatable quick connector
JP2002267074A (en) * 2001-03-09 2002-09-18 Toyoda Gosei Co Ltd Connector
JP4229685B2 (en) * 2002-11-29 2009-02-25 臼井国際産業株式会社 Connector for small diameter pipe connection
EP1561990B1 (en) * 2004-02-05 2008-08-20 TI Group Automotive Systems LLC Quick connector for high pressure applications

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DE102006030428B4 (en) 2010-10-28
DE102006062894B4 (en) 2011-12-15
CN1940372A (en) 2007-04-04
CN101699122B (en) 2012-10-03
DE102006030428A1 (en) 2007-01-18
KR20070003692A (en) 2007-01-05
CN101699122A (en) 2010-04-28
JP4837458B2 (en) 2011-12-14
CN1940372B (en) 2012-09-05
JP2007010153A (en) 2007-01-18
KR101227251B1 (en) 2013-01-28

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