US20110148107A1 - Bayonet connection for coupling bodies - Google Patents

Bayonet connection for coupling bodies Download PDF

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Publication number
US20110148107A1
US20110148107A1 US13/027,334 US201113027334A US2011148107A1 US 20110148107 A1 US20110148107 A1 US 20110148107A1 US 201113027334 A US201113027334 A US 201113027334A US 2011148107 A1 US2011148107 A1 US 2011148107A1
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US
United States
Prior art keywords
section
studs
end portion
body section
groove
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.)
Abandoned
Application number
US13/027,334
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English (en)
Inventor
Philippe Blivet
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.)
Norma Autoline France Sas
Legris SA
Original Assignee
Legris SA
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 Legris SA filed Critical Legris SA
Assigned to LEGRIS SAS reassignment LEGRIS SAS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BLIVET, PHILIPPE, MR.
Publication of US20110148107A1 publication Critical patent/US20110148107A1/en
Priority to US15/487,482 priority Critical patent/US10975995B2/en
Assigned to NORMA AUTOLINE FRANCE SAS reassignment NORMA AUTOLINE FRANCE SAS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PARKER HANNIFIN FRANCE SAS
Abandoned legal-status Critical Current

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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
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
    • F16L37/248—Bayonet-type couplings
    • 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
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/0841—Couplings 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 a transversally slidable locking member surrounding the tube
    • 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
    • F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
    • F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
    • F16L37/252—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe the male part having lugs on its periphery penetrating in the corresponding slots provided in the female part

Definitions

  • the present invention relates to a coupling suitable for use in connecting together two ducts, e.g. for connecting together pipes or for connecting a pipe to a fluid emitter or receiver member such as a pump, a manifold, an actuator, a flow or pressure regulator, a tank,
  • a fluid emitter or receiver member such as a pump, a manifold, an actuator, a flow or pressure regulator, a tank
  • the invention also provides a body part for such a coupling and a method of reinforcing a bayonet connection securing the two body parts of a coupling together.
  • Couplings are known that comprise a body defining an internal channel and comprising two body parts, each provided with connector means for connecting the channel to a duct.
  • the connector means may be of various types, e.g. comprising a male tubular section with Christmas-tree teeth or forming a nipple that is to be engaged by force in the duct, or a female tubular section provided with a toothed washer or with a quick coupling clamp for engaging the duct.
  • the body is generally made as a one-piece molding, but that prevents any modularity of the coupling for the purpose of simplifying fabrication. It is necessary to provide a plurality of different molds for fabricating bodies that associate the various types of connector that are in use.
  • Couplings are also known in which the body is made up of two independent parts.
  • the body parts then have end portions arranged to enable the first and second body parts to be secured to each other by relative engagement.
  • the end portions have means for mutual retention such as snap-fastener means or clip-fastener means acting in an axial engagement direction.
  • most of the forces that act externally on such a coupling include an axial component. That means that the strength of the connection between the body parts is relatively weak.
  • an aspect of the invention is to provide an alternative to conventional techniques for connecting the body parts of a coupling together
  • the invention provides a coupling comprising a tubular body defining an internal channel and comprising a first body part and a second body part, each provided with connector means for connecting the channel to a duct, the first and second body parts having end portions arranged to enable the first and second body parts to be secured to each other by relative engagement, wherein the end portions are provided with fastener elements arranged to define an irreversible bayonet connection, the end portion of the first part including at least one radially projecting stud and the end portion of the second part including at least one groove for receiving the stud, the groove having an inlet segment opening out into a blind segment that extends in a substantially circumferential direction of the coupling, the groove having a wall element that is movable between a retracted position outside the groove so as to allow the stud to pass from the inlet segment to the blind segment, and a projecting position inside the groove so as to prevent the stud
  • the fastener elements that define a bayonet connection co-operate with each other via bearing surfaces that are strong in the axial direction, thereby conferring relatively great strength to the coupling against forces exerted in that direction.
  • the fastener elements also oppose disengagement of the body parts in the event of them pivoting relative to each other by ensuring that the bayonet connection is irreversible.
  • the movable wall element constitutes a simple manner of ensuring that the bayonet connection is irreversible.
  • the holder means comprise resilient return means for urging the wall element into its projecting position and, preferably, the wall element is elastically deformable from its projecting position towards its retracted position.
  • the end portion of the first part is a male part and the stud extends radially, projecting outwards from the end portion
  • the end portion of the second part includes a wall defining a housing for receiving the first part, the groove being formed in said wall of the housing, the inlet segment extending in a substantially axial direction of the housing and having one end opening out into a terminal face of the second part and an opposite end opening out into the blind segment and, preferably, the groove has an end wall forming the movable wall element, the end wall being elastically deformable from its projecting position towards its retracted position.
  • the coupling is easy to make.
  • the end wall forming the movable wall element possesses a stationary end in the inlet segment and a free end close to the blind segment and, advantageously, the stud and the free end of the end wall forming the movable wall element are of complementary shapes arranged in such a manner that a force from the stud on the free end towards the inlet segment tends to hold the end wall forming the movable wall element in the projecting position.
  • the end portions comprise respectively a plurality of studs and a plurality of grooves, said studs and grooves being arranged symmetrically so as to allow a plurality of angular positions for mutual engagement of the body parts.
  • one of the two body parts is not symmetrical, e.g. when it has a bend, which bend can then be oriented in different directions so as to make it easier to install the coupling in a circuit by adapting its shape to its surroundings.
  • the invention also provides a body part for such a coupling.
  • This body part has an end portion with at least one groove for receiving a stud, the groove having an inlet segment opening into a blind segment that is at an angle relative thereto, and a wall element that is movable between a retracted position outside the groove so as to allow the stud to pass from the inlet segment to the blind segment, and a projecting position inside the groove so as to prevent the stud from escaping from the blind segment, the coupling including holder means for holding the wall element in the projecting position.
  • the invention also provides a method of reinforcing the connection between two body parts of a tubular body of a coupling, the body defining an internal channel and each of the body parts being provided with means for connecting the channel to a duct and each having a respective end portion arranged to enable the first and second body parts to be secured to each other by relative engagement, the end portions being provided with fastener elements comprising respectively at least one radially projecting stud and at least one groove for receiving the stud, the groove including an inlet segment opening into a blind segment extending in a substantially circumferential direction of the coupling, the method comprising the step of plastically deforming at least one of the fastener elements in order to block the stud in the blind segment.
  • the method of the invention thus makes it possible to ensure that the bayonet connection securing the body parts together is irreversible.
  • the groove includes a wall element that is movable between a retracted position outside the groove for allowing the stud to pass from the inlet segment to the blind segment and a projecting position inside the groove to prevent the stud from escaping from the blind segment, the deformation being performed to oppose movement of the movable wall element from its projecting position towards its retracted position, against the movable wall element, or against the stud.
  • the function of the plastic deformation is to increase resistance to the stud moving towards the inlet segment of the groove by acting on the stud itself or by acting on the movable wall element.
  • the present invention accordingly, comprises the construction, combination of elements, and/or arrangement of parts and steps which are exemplified in the detailed disclosure to follow.
  • FIG. 1 is a partially exploded perspective view of a coupling in accordance with the invention
  • FIG. 2 is a view of the coupling in longitudinal section on plane II of FIG. 1 ;
  • FIG. 3 is a view of the coupling in cross-section on line III-III of FIG. 2 ;
  • FIG. 4 is a view analogous to FIG. 3 during assembly of the coupling, during relative engagement of the two body parts;
  • FIG. 5 is a view analogous to FIG. 2 of a coupling in a first variant embodiment, one of its body parts having a bend;
  • FIG. 6 is a view analogous to FIG. 2 of a coupling constituting a second variant embodiment, the fastener elements co-operating in reinforced manner to increase the strength of the bayonet connection;
  • FIG. 7 is a section view analogous to FIG. 3 showing a first implementation of the method of the invention.
  • FIG. 8 is a view analogous to FIG. 7 showing a second implementation of the method of the invention.
  • the coupling in accordance with the invention comprises a body given overall reference 1 that is tubular, defining an internal channel 2 and that is arranged to connect the internal channel 2 to two ducts, e.g., belonging to fluid circuit members such as pipes, a manifold, an actuator, or a tank.
  • the body 1 has a first body part and a second body part that are given respective overall references 3 and 4 .
  • the first body part 3 and the second body part 4 thus define respective segments of the internal channel 2 .
  • the first body part 3 possesses a first end portion 5 arranged as a female connector portion for connection to one end of one of the ducts in order to connect said duct to the internal channel 2 , and a second end portion 6 arranged as a male link portion for linking to the second body part.
  • the end portion 5 includes a chamber arranged at one end of the internal channel 2 and provided with conventional connector means, here comprising a latch that is movable radially to co-operate with a portion in relief on the outside of the duct.
  • the end portion 6 is provided with four studs 7 projecting radially outwards and arranged symmetrically at 90° from one another.
  • the second body part 4 possesses a first end portion 8 arranged as a connector portion for connection to one end of the other one of the ducts to connect said duct to the internal channel 2 , and a second end portion 18 arranged as a female link portion for linking to the first body part 3 .
  • the end portion 8 is provided with connector means, in this example with outwardly-projecting Christmas-tree serrations, i.e. barbs, and it is arranged to be engaged by force in said end of said duct.
  • the end portion 18 is provided with a bore 19 of diameter that is greater than the diameter of the internal channel 2 (the diameter of the bore 19 is equal to the outside diameter of the duct), and having an end opposite from the end portion 8 that is provided with a chamber 10 for receiving the end portion 6 . From beside the end portion 8 , the bore 19 receives sealing elements 20 for clamping onto the end of the duct that is retained by the connector means of the body part 3 .
  • the chamber 10 is provided internally with four grooves 9 disposed symmetrically at 90° from one another for slidably receiving the studs 7 . Each groove 9 includes an inlet segment 9 .
  • Each groove 9 possesses an end wall element 12 having one end secured to the chamber wall 10 and an opposite free end 13 .
  • the end wall element 12 extends in the inlet segment 9 . 1 in a circumferential direction of the chamber 10 so as to have its free end 13 extending to the inlet to the blind segment 9 . 2 .
  • the end wall element 12 is elastically deformable between a rest state in which the free end 13 projects inside the groove 9 to oppose exit of the stud 7 from the blind segment 9 .
  • the end wall element 12 thus forms a movable wall element.
  • Assembly of the coupling amounts to engaging the end portion 6 axially in the chamber 10 by engaging the studs 7 in the inlet segments 9 . 1 of the grooves 9 ( FIG. 4 ) and then causing the first part 3 to pivot relative to the second part 4 (in the direction of arrow P in FIG. 3 ) so as to cause the studs 7 to penetrate into the blind segments 9 . 2 .
  • the studs 7 deform the end wall elements 12 from their rest state to their deformed state.
  • each end wall element 12 returns automatically to its rest state as a result of its own resilience.
  • the free ends 13 of the end wall elements 12 are then in the vicinity of side faces 14 of the studs 7 , opposing any movement of the studs towards the inlet segments 9 . 1 ( FIG. 3 ).
  • the studs 7 are of a width equal to the distance between the end 13 and a terminal wall of the blind segment 9 . 2 , such that each stud 7 is received with practically no slack in the blind segment 9 . 2 .
  • the second body part 4 has a bend so that the male end portion 8 is at an angle of 90° relative to the end portion 18 .
  • the symmetrical arrangement of the studs 7 and the grooves 9 at 90° allows for four possible orientations of the body parts relative to each other, thus making it possible to select the orientation of the latch of the first body part 3 relative to the male end portion 8 of the second body part 4 in such a manner as to facilitate access to the latch as a function of the environment of the coupling.
  • each end wall element 12 and the face 14 of each stud 7 are of shapes that are complementary so as to oppose movement of the end 13 towards its retracted position.
  • the end 13 has a chamfered portion 15 that penetrates into a setback 16 in the face 14 at the base of the stud 7 so that when the face 14 exerts a force on the end 13 , co-operation between the chamfered portion 15 and the setback 16 tending to hold the end wall element 12 in its rest state.
  • FIG. 7 shows a coupling analogous to that shown in FIGS. 1 to 4 and that has been subjected to the method of the invention in a first implementation.
  • at least one of the studs 7 is subjected to hot deformation 7 . 1 so as to increase locally the height of the stud 7 at the face 14 and prevent the stud 7 from escaping from the thrust of the end 13 (FIG. 7 . a shows the coupling before deformation; FIG. 7 . b shows the coupling after deformation).
  • FIG. 8 shows a coupling analogous to that shown in FIGS. 1 to 4 except in that the grooves 9 do not have a movable end wall element (see FIG. 8 . a ).
  • the structure of the coupling thus does not ensure that the bayonet connection is irreversible.
  • This coupling has therefore been subjected to the method of the invention in its second implementation.
  • the end wall 42 of at least one of the grooves 9 at the inlet of the blind segment 9 . 2 is subjected to local hot deformation so as to reduce locally the height of the groove 9 so that the stud 7 is taller than the groove 9 at this location and comes into abutment against the deformed portion of the end wall.
  • the hot deformation prevents the stud 7 from moving out from the blind segment 9 . 2 of the groove 9 by eliminating assembly clearances.
  • the hot deformation may be performed by a laser beam or by a hot punch.
  • the deformation could also be performed cold.
  • the bayonet connection may be made irreversible by means other than those described, and for example by means of a latch mounted on the body part having the groove so as to be movable transversely in the groove.
  • the end wall element 12 forms the movable wall element
  • the movable wall element could be constituted by a portion of one of the flanks of the groove.
  • the movable wall element could be hinged to the chamber and urged resiliently into a projecting position by an independent spring or it could be held mechanically in its projecting position.
  • the plastic deformation may be obtained on any part of the coupling, providing it is sufficient to ensure that the bayonet connection is irreversible.
  • connector means can be used, and in particular: quick coupling means, non-quick coupling means, forced engagement means, clip-fastener means, a toothed washer, a retention clamp.
  • the coupling may have two male ends or two female ends.
  • the number and the positioning of the studs and of the grooves may be modified, for example as a function of the number of potential angular orientations that it is desired to have between the body parts.
  • the link between the first body part and the second body part may be provided as described herein upstream from the sealing elements 20 (upstream relative to the direction in which the duct end is inserted in the chamber of the first end portion) or downstream from said sealing elements, however it is then necessary to provide additional sealing elements between the first body part and the second body part.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US13/027,334 2008-08-20 2011-02-15 Bayonet connection for coupling bodies Abandoned US20110148107A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/487,482 US10975995B2 (en) 2008-08-20 2017-04-14 Bayonet connection for coupling bodies

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0804650 2008-08-20
FR0804650A FR2935167A1 (fr) 2008-08-20 2008-08-20 Raccord en deux parties reliees par baionette, partie de corps d'un tel raccord et procede de renforcement de la liaison de parties de corps d'un tel raccord
PCT/FR2009/001018 WO2010020722A2 (fr) 2008-08-20 2009-08-20 Raccord en deux parties reliées par baïonnette, partie de corps d' un tel raccord et procédé de renforcement de la liaison de parties de corps d' un tel raccord

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2009/001018 Continuation WO2010020722A2 (fr) 2008-08-20 2009-08-20 Raccord en deux parties reliées par baïonnette, partie de corps d' un tel raccord et procédé de renforcement de la liaison de parties de corps d' un tel raccord

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/487,482 Continuation US10975995B2 (en) 2008-08-20 2017-04-14 Bayonet connection for coupling bodies

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US20110148107A1 true US20110148107A1 (en) 2011-06-23

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US13/027,334 Abandoned US20110148107A1 (en) 2008-08-20 2011-02-15 Bayonet connection for coupling bodies
US15/487,482 Active 2030-03-20 US10975995B2 (en) 2008-08-20 2017-04-14 Bayonet connection for coupling bodies

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US (2) US20110148107A1 (fr)
EP (1) EP2318747B1 (fr)
CN (1) CN102124261A (fr)
FR (1) FR2935167A1 (fr)
WO (1) WO2010020722A2 (fr)

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US20130019976A1 (en) * 2011-07-20 2013-01-24 Gary Wu Faucet outlet structure
EP2703708A3 (fr) * 2012-08-29 2014-08-20 vonRoll infratec (investment) ag Raccord verrouillable à fiches pour tuyaux doté d'une fermeture à baïonnette
US20150089991A1 (en) * 2013-10-02 2015-04-02 Crippa S.P.A. Thrusting device for pipes or the like to bend in a pipe or the like bending machine
US20150354736A1 (en) * 2013-01-17 2015-12-10 Delphi Automotive Systems Luxembourg Sa Quick connector device
EP3112737A1 (fr) * 2015-07-03 2017-01-04 MANN+HUMMEL GmbH Agencement de couplage avec des corps de couplage et patte de raccordement pour tuyaux
US20170294741A1 (en) * 2016-04-12 2017-10-12 Canon U.S.A., Inc. Bayonet connector and methods for incorporating bayonet connector
US20170347849A1 (en) * 2014-12-19 2017-12-07 Festool Gmbh Suction Hose Connecting Piece
USD846608S1 (en) * 2017-03-14 2019-04-23 M&M Machinery Services, Inc. Receiver for a bottling machine
CN110159856A (zh) * 2019-06-06 2019-08-23 浙江省机电设计研究院有限公司 一种自锁式快速接头
US10927973B2 (en) 2018-12-12 2021-02-23 Bendix Commercial Vehicle Systems Llc Pneumatic valve/pressure vessel subcomponent with bayonet retention feature
US10927968B2 (en) 2018-12-12 2021-02-23 Bendix Commercial Vehicle Systems Llc Pneumatic valve/pressure vessel plastic metal composite cover with bayonet retention feature
US10975995B2 (en) 2008-08-20 2021-04-13 Norma Autoline France Sas Bayonet connection for coupling bodies
US11168819B2 (en) * 2016-12-07 2021-11-09 Tristone Flowtech Solutions (Tfs) Device for coupling a fluid pipe and a male coupling, and assembly comprising such a device and said associated male coupling
US20220090719A1 (en) * 2019-01-15 2022-03-24 Hutchinson Fluid connection device
US11346478B2 (en) 2017-12-21 2022-05-31 Ceme S.P.A. Connector for circuit elements
RU2788027C1 (ru) * 2022-03-01 2023-01-16 Общество с ограниченной ответственностью "Газпром 335" Стыковочная муфта
WO2023072551A1 (fr) * 2021-10-25 2023-05-04 Norma Germany Gmbh Dispositif de verrouillage d'une fermeture à baïonnette

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DE102010035027A1 (de) 2010-08-20 2012-02-23 Voss Automotive Gmbh Verriegelungselement für einen Steckverbinder und Steckverbinder mit einem solchen Verriegelungselement
AU2011253874A1 (en) * 2010-12-13 2012-06-28 Denso Automotive Systems Australia Pty Ltd Duct connector
CN105443905B (zh) * 2016-01-13 2018-08-14 奇瑞汽车股份有限公司 一种管路连接结构及连接方法
CN107202058B (zh) 2016-03-16 2020-05-19 新加坡机械电子（私人）有限公司 奖杯组装系统及其方法
DE102016111194A1 (de) 2016-06-20 2017-12-21 Voss Automotive Gmbh Kupplungsteil für einen Steckverbinder zur Herstellung von Schlauch- und/oder Rohrverbindungen und Steckverbinder mit einem derartigen Kupplungsteil
CN107575680A (zh) * 2017-09-21 2018-01-12 安徽荣达阀门有限公司 一种带快速接头装置的阀门
US11796099B2 (en) * 2019-08-22 2023-10-24 Cooper-Standard Automotive Inc. Connector having a pilot with an indicator
USD952805S1 (en) * 2020-01-02 2022-05-24 Changzheng Lin Water pipe quick connector
DE102022123996A1 (de) * 2022-09-19 2024-03-21 Norma Germany Gmbh Stutzengehäuse zum Verbinden mit einer Fluidleitung und System umfassend das Stutzengehäuse
AT526935B1 (de) * 2023-04-14 2024-09-15 Henn Gmbh & Co Kg Steckverbinder

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US20180066780A1 (en) 2018-03-08
WO2010020722A3 (fr) 2010-04-15
US10975995B2 (en) 2021-04-13
CN102124261A (zh) 2011-07-13
EP2318747A2 (fr) 2011-05-11
EP2318747B1 (fr) 2015-10-28
WO2010020722A2 (fr) 2010-02-25

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