• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device (10) for fluid connection, comprising a male connector (12) and a female connector (14), which are configured to be nested within each other along an X axis, a pin (16) elastically deformable generally U or C and mounted on the female connector, said pin having at least a portion (16a1, 16b1, 16c1) passing through the female connector and configured to cooperate by resilient snap-fastening with said male connector, and a ring (19 ) movable in axial translation on the female connector between a release position of the pin and a locking position of the pin and the connectors, characterized in that the female connector carries elements (18) movable in radial translation between a first radial position, preferably internal, immobilization of the ring on the female connector, and a second radial position, preferably external, of release of the ring, said elements being confi gured to cooperate with both the male connector and said ring so as to release the ring when the pin is snapped onto the male connector. The ring (19) advantageously completely covers the elastic pin (16) to ensure proper mounting of the female connector (14) on the male connector (12).
    公开号:FR3077615A1
    申请号:FR1850911
    申请日:2018-02-02
    公开日:2019-08-09
    发明作者:Flavien Gaurat；Robin Milandre；Cyril Amaru；Julien Mongendre
    申请人:Hutchinson SA；Hutchinson Technology Inc；
    IPC主号:
    专利说明:

    Fluid connection device
    TECHNICAL AREA
    The present invention relates to a fluid connection device for example for a motor vehicle, in particular for fluid circuits installed in the engine compartment (for example air or water circuits) or under the body of a vehicle (by example a fuel circuit or a “SCR” circuit of selective catalytic reduction). As a variant, it could be used in another field, for example aeronautics, marine, etc.
    STATE OF THE ART
    The purpose of a fluid connection device, of the quick connector type, is to connect two interfaces or fittings together in a sealed, fast, precise and reliable manner. This operation must be carried out in a few seconds, and an operator must be able to verify that a good connection has been established between the fittings to then avoid any leakage of fluid at the device. Furthermore, a device of this type should preferably be removable and reassemblable as required, for example during a maintenance operation.
    A device of this type is described in document FR-B1-2 795 156 in the name of the Applicant. This device comprises in particular two tubular connectors, respectively male and female, intended to be fitted one into the other. The device is completed by a jumper or an elastic pin intended to overlap the female connector and which has two elastically deformable lateral portions engaging in two openings of the female connector in order to cooperate by elastic snap-fastening with the male connector. To facilitate connection, the pin is pre-mounted on the female connector, and the male end piece is then engaged. This engagement leads to a separation of the portions of the pin, these portions returning to their initial position when the end pieces are in a predetermined fitting position. In practice, in this initial position, the pin can be in the constrained state to be held tight on the female connector. The operator who performs the assembly can be assured of a suitable connection when the two elastic portions return to their initial positions, as this results in the emission of a characteristic snap noise that the operator can perceive.
    However, this audible warning is not necessarily perceived by the operator in the presence of background noise. For these reasons, it is known to equip the device with additional means, for example visual, which makes it possible to verify that a good connection has been established in addition to the characteristic noise emitted during connection.
    Document EP-B1-2 251 581 in the name of the Applicant describes such a visual indicator, associated in the female connector with the pin. A disadvantage of the visual locking indicators used to date is, that there is no evidence to certify that the operator intervening on the assembly line of motor vehicles has indeed carried out this double check, and that this visual check is in any case not effective if the quick coupling is to be locked in a location that is not easily visible to the operator ("blind" mounting). Therefore, these cookies do not appear to be completely reliable.
    The present invention provides an improvement to this technology, which guarantees a precise position of the fittings one inside the other and therefore a good connection between these fittings.
    STATEMENT OF THE INVENTION
    To this end, the invention provides a fluid connection device, in particular for a motor vehicle, comprising:
    - a male connector and a female connector, which are configured to be nested one inside the other along an X axis,
    an elastically deformable pin of general U or C shape and mounted on the female connector, said pin comprising at least one part passing through the female connector and configured to cooperate by elastic snap-fitting with said male connector, and
    - a ring movable in axial translation on the female connector between a release position of the pin and a locking position of this pin as well as of the fittings, characterized in that the female connector carries elements movable in radial translation between a first radial position, preferably internal, for immobilizing the ring on the female connector, and a second radial position, preferably external, for releasing the ring, said elements being configured to cooperate with both the male connector and said ring so as to release the ring when the pin is snapped onto the male connector.
    The device according to the invention comprises two means for locking the connection of the fittings, with on the one hand the elastic pin and on the other hand the ring. The ring is capable of being moved by an operator, from its release position to its locking position, only when the elements are in a predetermined radial position. This radial position of the elements is obtained when the male connector is correctly fitted into the female connector, that is to say when the pin is in its latched position. In other words, the operator can only move the pin locking ring if the pin is in its latched position. To prevent an operator from moving the ring on the female connector, before the fittings are fully engaged, the ring is preferably configured to cooperate itself with the female connector to avoid such displacement, as long as the elements are not in the aforementioned second radial position. Furthermore, the pin is advantageously designed so that, when it is not in the latched position or in its initial position on the female connector, it prevents translation of the ring from its release position to to its locked position.
    The device according to the invention may include one or more of the following characteristics, taken in isolation from one another or in combination with each other:
    - the elements are pawns which have for example a general shape of nail or dumbbell,
    - the pins have elongation axes extending radially with respect to the X axis,
    the pins each have a head configured to cooperate with the ring and a tip configured to cooperate with the male connector, or vice versa,
    - the pin is configured so as to limit the displacement travel of the ring on the female connector, when the pin is not in a locking position and when said elements are in said second position,
    - The male connector comprises a cylindrical portion connected to an end of small diameter of a frustoconical ramp, one end of larger diameter is connected to an annular groove, said pin being configured to cooperate by sliding with said ramp and by elastic snap-fastening with said groove, and said elements being intended to cooperate by sliding with said ramp,
    the ring comprises elastically deformable locking tabs, between a free position without constraint in which they axially block the ring on the female connector, and a position constrained by said elements in which they allow movement of the ring on the female connector,
    - the legs have an elongated shape in the axial direction,
    the locking tabs comprise, at free ends, pads which are housed with the heads of the pins in housings of complementary shape to the female connector, and which are radially displaceable in these housings,
    - the pin and the elements are at an axial distance which is less than the length of the ring, which is itself less than the length of the female connector,
    - the ring is configured to be able to cover and hide the pin and said elements, in particular when it is in said locking position,
    - the female connector includes a visual cue and the ring is configured to be able to cover and hide this visual cue, in particular when it is in said release position; this visual cue is for example a color mark, an engraving, a symbol, a text, etc.,
    - the pin is formed by an elastic element such as a metallic or plastic wire.
    DESCRIPTION OF THE FIGURES
    The invention will be better understood and other details, characteristics and advantages of the invention will appear more clearly on reading the following description given by way of non-limiting example and with reference to the accompanying drawings in which:
    - Figures 1 and 2 are schematic perspective views of a fluid connection device according to the invention, respectively without the male connector in Figure 1 and with this male connector in Figure 2, Figures 1 and 2 illustrating in in addition to the release and immobilization positions of a ring respectively,
    FIG. 3 is a schematic front view of the device of FIG. 1, that is to say without the male connector, and illustrates a radial position, here external, of elements carried by the female connector,
    - Figure 4 is a schematic front view of the device of Figure 2, without the male connector, and illustrates a radial position, here internal, of elements carried by the female connector,
    - Figure 5 is a schematic side view in partial axial section of the device of Figure 1, the male connector being shown but at a distance from the female connector; the device is thus in an unconnected state,
    - Figure 6 is a schematic side view, in perspective and in partial axial section, of the device of Figure 2; the device is thus in a connected state,
    FIG. 7 is a schematic exploded perspective view of the device of FIG. 1,
    FIG. 8 is a schematic perspective view of the ring of the device in FIGS. 1 and 2,
    - Figure 9 is an enlarged view of part of the female connector of the device of Figures 1 and 2;
    FIG. 10 is a schematic perspective view of an element of the pawn type of the device in FIGS. 1 and 2,
    FIGS. 11 to 15 are partial schematic views in axial section of the device in FIGS. 1 and 2 and illustrate steps for connecting the female connector to the male connector,
    FIG. 16 is a schematic exploded perspective view of an alternative embodiment of a fluid connection device according to the invention,
    FIG. 17 is a partial schematic view in axial section of the device in FIG. 16, the fittings being in a nested position,
    - Figures 18 to 20 are partial schematic views in axial section of alternative embodiments of the device according to the invention, and
    - Figures 21 and 22 are schematic side views of another alternative embodiment of the device according to the invention, respectively in the disconnected and connected positions.
    DETAILED DESCRIPTION
    Figures 1 to 15 illustrate a first embodiment of a fluid connection device 10 according to the invention, for example for a fluid circuit of a motor vehicle.
    The device 10 essentially comprises at least five parts, namely a male connector 12, a female connector 14, an elastic pin 16, at least one element which is a pin 18 in the example shown, and a ring 19.
    The fittings 12 and 14 are intended to be fitted one into the other and to be secured each to a pipe or component to be connected. The pin
    16, and the pin (s) 18, are carried by the female connector 14 and are able to cooperate with the male connector 12. The ring 19 is also carried by the female connector 14.
    These parts will be described one after the other in the following, then their mutual cooperation and the fitting of fittings will be described.
    -> Male connector 12
    The male connector 12 has a tubular shape with an X axis. It is intended to be engaged at least in part in the female connector 14 and comprises an axial end 12a for securing to a pipe or a component, as mentioned above.
    The male connector 12 is intended to cooperate with the female connector 14, and in particular with the pin 16 which it carries, by elastic snap-fastening and for this purpose comprises a radially external annular groove 20 in which is intended to be housed at least in part of pin 16 when the fittings are correctly positioned one inside the other.
    In the example shown, the male connector 12 essentially comprises two cylindrical portions 12b, 12c of different diameters and connected to each other by a frustoconical ramp 22 (external) extending all around the axis X. The portion 12c of smaller diameter defines the free end of the fitting 12 and is connected to the end of smaller diameter of the ramp 22, the end of larger diameter is connected to one end of the portion 12b of larger diameter. The opposite end of this portion 12b defines the above-mentioned axial end 12a.
    The groove 20 is located on the portion 12b of larger diameter, and is here located as close as possible to the ramp 22. In the drawings, the diameter of the portion 12b, which is the external diameter of the groove 20, is denoted D1 , the diameter of the portion 12c is denoted D2, and the internal diameter of the groove 20 is denoted D3. D1 is greater than D2, and D3 is greater than D2.
    The male connector 12 is for example made of polyamide or aluminum.
    -> Female connector 14
    The female connector 14 has a tubular shape with an X axis. It also includes an axial end 14a for fastening to a pipe or a component, as mentioned in the above.
    The female connector 14 is shaped to extend around the male connector and therefore includes an internal axial bore adapted to the shape and dimensions of the male connector 12.
    In the example shown, on the side opposite the end 14a, the female connector 14 comprises a cylindrical portion 14b which is connected to an end of large internal diameter of a frustoconical ramp 24 (internal) extending around the axis X and whose end of smaller diameter is located on the side of the end 14a. As seen in particular in FIG. 6, the portion 14b is configured to extend with a small radial clearance around the portion 12b, and the ramp 24 is configured to extend also with a small radial clearance around the ramp 22.
    In practice, the portion 14b has an internal diameter denoted D4 which is slightly greater than D1 and the ramps 22, 24 may have substantially identical cone angles. The ramp 24 has a minimum internal diameter denoted D5, which is slightly greater than the diameter D2.
    The female connector 14 carries the ring 19, the pin 16 and two pins 18 in the example shown.
    The connector 14 is for example made of polyamide.
    -> Pin 16
    The pin 16 is better visible in Figure 7. It has a general U or C shape and is formed by an elastic element such as a metal wire. It comprises two lateral portions 16a, 16b linked together by a middle portion 16c.
    The pin 16 is mounted on the connector 14 and around a part of the latter. As can be seen in particular in FIGS. 3 to 7, the connector 14 comprises an annular groove 26 opening radially outwards and in which the pin 16 is housed.
    Curved portions of the pin extend along a circumference centered on the X axis. Other portions deviate from this circumference. This is particularly the case of the middle portion 16c which has a general M shape and comprises two lateral parts 16c2 oriented towards the outside and a middle part 16c1 oriented towards the inside. This is also the case of the lateral portions which each comprise, in the vicinity of their free end, a part 16a1, 16b1 oriented inwards. The free ends 16d of the lateral portions are further folded.
    The circumference on which the pin extends has a diameter smaller than the external diameter of the groove 26 so that a majority of the pin is completely housed in the groove, as can be seen in FIGS. 5 and 6.
    The bottom of the groove 26 of the female connector 14 is pierced with through holes 28 for the radial passage of the internal parts 16a1, 16b1, 16c1. The connector 14 thus comprises three lights 28 in the example shown, the light for receiving the part 16a1 is visible in FIGS. 1 and 7 and the light for receiving the part 16c1 is visible in FIG. 5. A light 28 is shown on a larger scale in FIG. 9. The groove 26 and the slots 28 are here located on the part 14b of the connector 14.
    Figures 3 and 4 show the internal parts 16a1, 16b 1, 16c1 which pass through the openings 28 of the female connector 14. These parts have a minimum internal diameter noted D7. The parts 161a, 16b1, 16c1 give the pin a certain elastic flexibility by spacing or bringing together its lateral portions, substantially in a plane containing the pin, which is a plane perpendicular to the axis X.
    The ends 16d cooperate by circumferential support with stops 14e complementary to the connector 14 (FIG. 1) so as to immobilize in rotation the pin 16 on the connector 14, and in the groove 26.
    The diameter D7 is less than the diameter D4 and the diameter D1. The diameter D7 is preferably greater than or equal to the diameter D2. When the connector 12 is engaged in the connector 14, the parts 16a1, 16b1, 16c1 are intended to cooperate by sliding via their vertices possibly on the part 12c, to ensure centering of the connectors when they are presented. one inside the other. The parts then cooperate by sliding with the ramp 22. Part of the force applied to the connector 14 to fit it into the connector 12 is transmitted by the ramp 22 to the parts 16a1, 16b1, 16c1, which causes an elastic deformation of hairpin. This elastic deformation results in an enlargement of the internal diameter D7 of the pin until reaching the diameter D1 of the part 12b when the parts slide up to this part. It then suffices to continue translating the connector until the parts 16a1, 16b1, 16c1 engage by return and elastic snap-fastening in the groove 20 of the male connector 12. This position is shown in FIG. 6 and corresponds to the correct fitting position of the fittings 12, 14. In this position, the aforementioned plane containing the pin 16 passes substantially at the level of the groove 20.
    Although this is not shown, the connector 14 could include means intended to cooperate with the pin 16 to make it captive and in particular not detachable from the connector.
    -> Pawn (s) 18
    In the example shown, the device 10 comprises two pins 18 but it could include more. The pins 18 are diametrically opposite and have the general shape of a nail in this example.
    A pin 18 is shown on a larger scale in FIG. 10 and comprises a substantially cylindrical rod 18a of axis Y, and a head 18b located at a longitudinal end of the rod 18a. In the variant not shown or the pin would have a dumbbell shape, it would include a head at each of the longitudinal ends of a rod.
    In the example shown, the rod 18a is split and includes a slot 18c which extends along the Y axis up to, for example, half its length. The slot 18c divides the free end of the rod 18a into two parts which are slightly elastically deformable in bending and which each carry a hooking tooth 18d. The teeth 18d are here diametrically opposite and oriented towards the outside with respect to the Y axis. The head 18b has a generally flat shape with circular outline, the apex of which, opposite the rod 18a, is slightly rounded or round.
    Each pin 18 is housed in a radial through hole 30 of the female connector 14, which opens onto the ramp 24. The connector 14 thus comprises two diametrically opposite orifices 30 for receiving the pins 18.
    Each orifice 30 comprises three parts, respectively internal 30a, intermediate 30b and external 30c. The external part 30c of the orifice 30 is a cylindrical housing of diameter D8 which opens radially outwards on the external periphery of the connector 14 (FIGS. 5 and 6). The intermediate part 30b is a cylindrical housing of diameter D9, less than D8, which extends between the parts 30a, 30c (Figures 5 and 6). The parts 30b, 30c are coaxial. The part 30a opens onto the ramp 24 and defines a peripheral support surface 32 around the outlet of the part 30b (FIG.
    9).
    As seen in Figures 5 and 6, each pin 18 is mounted in an orifice 30 so that its head 18b is located in the part 30c, its rod 18a passes through the part 30b and its teeth are located in or au- beyond the part 30a and are able to come to bear on the surface 32.
    The holes 30 each have a radial orientation and the pins 18 are housed in these holes so that their axes Y extend radially. The pins 18 are movable in radial translation in the orifices 30 from an internal position shown in Figures 4 and 5 to an external position shown in Figures 3 and 6. In the position of Figures 4 and 5, the heads 18b are supported radial on the radially internal bottom of the parts 30c of the orifices 30, and the free ends of the rods 18a are situated on a circumference centered on the axis X, of diameter D6 (FIG. 4). In the position of FIGS. 3 and 6, the teeth 18d of the pins are in contact with the surface 32 or close to this surface and the free ends of the rods 18a are located this time on a circumference of diameter D6 ′ greater than D6 ( figure 3). In this position, the heads of the pins are situated at the radially external end of the parts 30c and have their vertices substantially aligned with an external peripheral surface of the connector 14.
    The radial displacement of the pins 18 between these positions is caused by the insertion of the fittings 12, 14 into one another, the pins being intended to cooperate by sliding through their free ends or points on the male fitting 12, and in particular on the ramp 22.
    When the fitting 12 is engaged in the fitting 14, the pins 18 can cooperate by sliding with the part 12c then with the ramp 22. Part of the force applied on the fitting 14 to fit it in the fitting 12 is transmitted by the ramp 22 to the pins, which moves them radially in their orifices 30 between the aforementioned positions. In the position shown in Figure 6, in which the pin 16 is snapped into the groove 20, the pins 18 are supported on the ramp 22 and are in the above external position. The axial distance between the pin 16 and the pins 18, or between the groove 26 and the orifices 30, is here less than the cumulative length of the groove 20 and the ramp 22, so as to ensure that the pins 18 are well positioned on the ramp 22 when the pin 16 is housed in the groove 20.
    In the example shown, the slot 18c of each pin makes it easier to mount it in the orifice 30 by elastic snap-fastening. Each pin is in fact engaged in the corresponding orifice by elastic snap-fastening, during which the parts of the rod carrying the teeth 18d undergo an elastic return along the axis Y in the part 30a after insertion of the pin in the orifice 30 from the 'outside. The teeth 18d cooperate by abutment with the surface 32 and make it possible to make the pins captive.
    The pins 18 are for example made of polyamide.
    -> Ring 19
    The ring 19 is better visible in FIG. 8. It has a generally annular shape and is mounted around the female connector 14. It is able to be moved on the connector 14 between two axial positions, respectively rear shown in FIGS. 1 and 5, and before shown in Figures 2 and 6. In both positions, it extends around the holes 30 and the pins 18 which are therefore hidden by the ring 19. In the retracted position, it leaves free the pin 16 which can be freely deform elastically in the radial direction, under the action of the ramp 22. In the advanced position, it covers the pin 16 which cannot deform elastically or at least which is limited in its elastic deformations.
    As seen in Figures 3 and 4, the ring 19 has not in the example shown a perfectly cylindrical shape because it is shaped to match with play the shape of the pin when it extends around the latter . The ring thus comprises bosses 19a intended to extend on the one hand around the lateral parts 16c2 and on the other hand around the ends 16d. The ring 19 is designed to be locked in rotation with respect to the connector 14.
    The ring 19 further comprises legs 34 which are elastically deformable in the radial direction, which are configured to cooperate with the connector 14 to immobilize the ring on the latter in the axial direction.
    The ring comprises two diametrically opposite lugs 34 in the example shown. Each tab 34 is formed in the thickness of the ring. Each tab 34 has a generally elongated shape in the axial direction and comprises a longitudinal end, here rear, connected to the rest of the ring and an opposite end, and therefore front, which is free and which is formed in one piece with a pad 36 projecting radially inwards. The radial distance between the pads 36 is less than the internal diameter of the ring 19. The internal diameter of the ring is slightly greater than the external diameter of the connector 14, so that it can slide axially on the latter.
    Each shoe 36 has a generally cylindrical shape whose diameter is less than the diameter D8. The pads are adapted to be housed in the parts 30c of the holes 30, when the pins are in their internal radial position (Figure 5), and to be removed from these holes by pressing the heads 18b of the pins on these pads (Figure 6) . The legs are thus elastically deformable by bending in a radial plane, between free positions without constraints shown in FIG. 5, in which the pads 36 are located in the parts 30 of the orifices 30, and constrained and deformed positions radially towards the outside in which the pads 36 have come out of the orifices 30.
    In the position of FIG. 5, the pads 36 cooperate by axial abutment with the peripheral edges of the orifices 30 and the ring 19 is prevented from moving axially on the connector 14. In the position of FIG. 6, the ring has been moved on the connector 14 above the pin 16 in order to lock it, that is to say so as to prevent its radial expansion and its exit from the groove 20. The pin 16 can thus be completely hidden by the ring 19. It is therefore understandable that an operator can move the ring in translation, in order to lock the pin, only if the fittings are well fitted into each other until elastic snap of the pin in the groove 20 of the fitting 12.
    Figures 11 to 15 show the steps mentioned in the foregoing of fitting the fittings by interlocking. The female connector is shown in Figure 11, with the pins 18 and the pin 16 in unconstrained positions, and the ring 19 in the rear position. The male connector 12 is engaged in the female connector 14 in FIG. 12. The pin 16 begins to cooperate with the ramp 22 while the pins 18 slide on the part 12c of the connector 12. The translation of the connector 12 in the connector 14 is continued, the pin 16 is found on the part 12b while the pins 18 begin to cooperate with the ramp 22. The translation of the connector 12 in the connector 14 is continued, the pin 16 engages by elastic return in the groove 20 of the connector and the pins 18 are moved radially outwards in their orifices 30, which results in an elastic deformation of the lugs 34 whose pads 36 come out of the orifices 30. The connectors 12, 14 are then properly fitted one in the other and it suffices for an operator to proceed to lock this interlocking by moving the ring 19 to the advanced position of FIG. 15, in which it extends above the pin 16. Dan s this position, the tabs 34 can return to their position without constraints by providing on the ring, just after the groove 20 for housing the pin 16 in the direction of advance of the ring, the housing 38 for receiving the pads. One of these housings 38 is visible in FIG. 1.
    In the event that an operator should unlock and dismantle the device 10, he should repeat the aforementioned steps in reverse, the first dismantling step consisting in exerting an axial tensile force on the ring to move it from its advanced position in the figure 15 in the retracted position of FIG. 14. This force must be sufficient to deform the legs again and extract the pads 36 from the housings 38. To facilitate this step, the rear ends 36a of the pads 36 which may be intended to cooperate directly with the pin 16 can be chamfered, as can be seen in FIG. 8. In practice, the device 10 is however not intended to be often disassembled.
    The alternative embodiment of Figures 16 to 19 shows that the characteristics of the device 10 are optional. This is particularly the case with pawns 18, which are not necessarily split and which do not necessarily include teeth. This is also the case for pin 16 which can have a different conformation. The variant embodiment of FIG. 18 shows that the lugs 34 can have a different orientation and / or length. They can for example be oriented in a transverse or circumferential direction relative to the axis X of the device. The variant embodiment of FIG. 19 shows that the pins 18 can be inclined relative to a plane perpendicular to the axis X. In the example shown, the axis of elongation of each pin, and therefore of displacement of the pin , is substantially perpendicular to the point or to the bearing surface of this pin on the ramp 22. The orifices 30 for receiving the pins naturally have a similar orientation. Furthermore, the pin can be arranged head to tail and have its head 18b on the side of the fitting 12 and therefore its tip and its teeth 18c on the opposite side and therefore on the side of the ring and the legs 34. It is then the tips of the pins which are intended to cooperate with the legs and to request their deformation.
    As mentioned in the foregoing, the device according to the invention makes it possible to guarantee the correct connection of the fittings 12, 14. In the event of improper mounting of the fittings, it would not be possible to axially move the ring 19 on the fitting female 14.
    There are several cases of improper mounting. In a first case, the male connector is not engaged in the female connector. The pins 18 are therefore in their radially internal positions and the ring 19 is prevented from moving axially on the female connector due to the cooperation of its pads 36 with the female connector. The other cases concern the incorrect axial positioning of the male fitting in the female fitting. Among these poor positions, there is that in which the pins bear on the pads 36 and elastically deform the legs 34 of the ring which is released axially on the female connector, and in which the pin 16 is not yet snapped in the groove 20. This scenario is illustrated in FIG. 20. The axial movement movement of the ring 19 is then limited by the pin 16. The ring cannot then reach its position for locking the pin because it cannot be brought to the axial position where it covers the pin.
    The step illustrated in Figure 20 can be inserted between the steps in Figures 12 and 13.
    Figures 21 and 22 show another alternative embodiment of the device which here comprises a visual mark 40 on the female connector 14. The visual mark 40 is for example a color mark, an engraving, a symbol, a text, etc. It is preferably located on the outer periphery of the connector 14, on the path of movement of the ring 19. The ring is configured to be able to cover and hide the visual reference 40, in particular when it is in said release position of the pin 16. When the ring 19 is in the locking position of the pin 19, the visual mark 40 is visible by an operator who guarantees that the connection between the fittings 12, 14 is correct. In the example shown, the visual reference 40 is in the form of a thick annular line extending around the entire periphery of the female connector 14.
    权利要求:
    Claims (13)
    [1" id="c-fr-0001]
    1. Device (10) for fluid connection, comprising:
    - a male connector (12) and a female connector (14), which are configured to be nested one inside the other along an X axis,
    - an elastically deformable pin (16) of general U or C shape and mounted on the female connector, said pin comprising at least one part (16a1, 16b1, 16c1) passing through the female connector and configured to cooperate by elastic snap-fitting with said connector male, and
    - A ring (19) movable in axial translation on the female connector between a release position of the pin and a locking position of this pin as well as of the fittings, characterized in that the female connector carries movable elements (18) in radial translation between a first radial position, preferably internal, for immobilizing the ring on the female connector, and a second radial position, preferably external, for releasing the ring, said elements being configured to cooperate with both the male connector and said ring so as to release the ring when the pin is snapped onto the male connector.
    [2" id="c-fr-0002]
    2. Device (10) according to claim 1, wherein the elements are pins (18) which have for example a general shape of nail or dumbbell.
    [3" id="c-fr-0003]
    3. Device (10) according to claim 2, wherein the pins (18) have elongation axes extending radially relative to the axis X.
    [4" id="c-fr-0004]
    4. Device (10) according to claim 2 or 3, in which the pins (18) each have a head (18b) configured to cooperate with the ring (19) and a tip configured to cooperate with the male connector (12), Or vice versa.
    [5" id="c-fr-0005]
    5. Device (10) according to one of the preceding claims, in which the pin (16) is configured so as to limit the displacement travel of the ring (19) on the female connector (14), when the pin is not in a latching position and when said elements are in said second position.
    [6" id="c-fr-0006]
    6. Device (10) according to one of the preceding claims, wherein the male connector (12) comprises a cylindrical portion (12c) connected to an end of small diameter of a frustoconical ramp (22) including one end of larger diameter is connected to an annular groove (20), said pin (16) being configured to cooperate by sliding with said ramp and by elastic snap-fitting with said groove, and said elements (18) being intended to cooperate by sliding with said ramp.
    [7" id="c-fr-0007]
    7. Device (10) according to one of the preceding claims, in which the ring (19) comprises locking tabs (34) which are elastically deformable, between a free position without stress in which they axially block the ring on the female connector, and a position constrained by said elements (18) in which they allow movement of the ring on the female connector.
    [8" id="c-fr-0008]
    8. Device (10) according to claim 7, wherein the tabs (34) have an elongated shape in the axial direction.
    [9" id="c-fr-0009]
    9. Device (10) according to claim 7 or 8, dependent on claim 4 at least, wherein the locking tabs (34) comprise at free ends pads (36) which are housed with the heads (18b) pins (18) in housings of complementary shape to the female connector (14), and which are radially displaceable in these housings.
    [10" id="c-fr-0010]
    10. Device (10) according to one of the preceding claims, in which the pin (16) and the elements (18) are at an axial distance which is less than the length of the ring (19), which is itself even less than the length of the female connector (14).
    [11" id="c-fr-0011]
    11. Device (10) according to one of the preceding claims, in which the ring (19) is configured to be able to cover and hide the pin (16) and said elements (18), in particular when it is in said locking position.
    [12" id="c-fr-0012]
    12. Device (10) according to one of the preceding claims, in which the female connector (14) comprises a visual marker (40) and the ring (19) is configured to be able to cover and hide this visual marker, in particular when it is in said release position.
    5
    [0013]
    13. Device (10) according to one of the preceding claims, in which the pin (16) is formed by an elastic element such as a metallic or plastic wire.
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    同族专利:
    公开号 | 公开日
    US20190242508A1|2019-08-08|
    EP3527867A1|2019-08-21|
    DE102019204343A1|2019-08-08|
    ES2829287T3|2021-05-31|
    EP3527867B1|2020-08-05|
    WO2019150353A1|2019-08-08|
    CN110131509A|2019-08-16|
    FR3077615B1|2020-02-21|
    GB2574497A|2019-12-11|
    US11131411B2|2021-09-28|
    GB201904329D0|2019-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2011108728A1|2010-03-04|2011-09-09|株式会社ニフコ|Connector|
    EP2602531A1|2011-12-06|2013-06-12|Hutchinson|Locking member of a connection device for fluid transfer, said device and method for locking same|
    EP3179148A1|2014-08-07|2017-06-14|Nifco Inc.|Lock mechanism for tubular body|
    EP0023853B1|1979-07-25|1983-05-11|Raoul Fremy|Couplings for hoses and the like|
    US5749606A|1996-02-13|1998-05-12|General Motors Corporation|Connector assembly with retainer|
    FR2795156B1|1999-06-17|2001-08-10|Hutchinson|SNAP-ON CONNECTION FOR A FLUID CONDUIT, PARTICULARLY FOR A FUEL SUPPLY CIRCUIT OF THE MOTOR OF A MOTOR VEHICLE|
    FR2820489B1|2001-02-05|2004-01-23|Valeo|SUPPLY CONNECTION DEVICE FOR A FLUID PRESSURE SYSTEM|
    JP4252785B2|2002-10-01|2009-04-08|株式会社パイオラックス|Piping connector and manufacturing method thereof|
    DE102006002564A1|2006-01-05|2007-07-12|Alfred Kärcher Gmbh & Co. Kg|Plug-in part for connector arrangement|
    GB0623517D0|2006-11-25|2007-01-03|Balltec Ltd|A connector|
    FR2945100A1|2009-04-30|2010-11-05|Hutchinson|CONNECTING CONNECTION BETWEEN A FLUID CONDUIT AND A RIGID BIT WITH A WIRELESS CONNECTION DEVICE AND A METHOD OF CONTROLLING THE CONNECTION|
    AT509561B1|2010-03-04|2012-07-15|Henn Gmbh & Co Kg|PROCESS FOR CONNECTING A CONDUCTOR, IN PARTICULAR TO CONNECTORS, OF A FASTENING DEVICE TO A LINE FOR LIQUID AND / OR GASEOUS MEDIA|
    JP6083869B2|2013-04-25|2017-02-22|株式会社ニフコ|connector|
    WO2015166356A2|2014-05-02|2015-11-05|Fiskars Oyj Abp|Quick connect/disconnect adaptor system|AT517085B1|2015-10-07|2016-11-15|Henn Gmbh & Co Kg|Connector for connecting lines for liquid or gaseous media|
    AT522804B1|2019-09-03|2021-02-15|Henn Gmbh & Co Kg|Connectors for connecting lines for liquid or gaseous media|
    EP3913271A4|2020-05-19|2021-11-24|Ti Automotive Fuldabrueck Gmbh|Connector|
    AT523066B1|2020-05-27|2021-05-15|Henn Gmbh & Co Kg|Connectors for connecting lines for liquid or gaseous media|
    法律状态:
    2019-01-25| PLFP| Fee payment|Year of fee payment: 2 |
    2019-08-09| PLSC| Search report ready|Effective date: 20190809 |
    2020-01-29| PLFP| Fee payment|Year of fee payment: 3 |
    2021-01-20| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1850911|2018-02-02|
    FR1850911A|FR3077615B1|2018-02-02|2018-02-02|FLUIDIC CONNECTION DEVICE|FR1850911A| FR3077615B1|2018-02-02|2018-02-02|FLUIDIC CONNECTION DEVICE|
    CN201910105072.5A| CN110131509A|2018-02-02|2019-02-01|Fluid connecting device|
    US16/265,859| US11131411B2|2018-02-02|2019-02-01|Fluid connection device|
    ES19165694T| ES2829287T3|2018-02-02|2019-03-28|Fluid connection device|
    DE102019204343.7A| DE102019204343A1|2018-02-02|2019-03-28|Fluidverbindunqsvorrichtung|
    EP19165694.1A| EP3527867B1|2018-02-02|2019-03-28|Fluid connection device|
    GB1904329.8A| GB2574497A|2018-02-02|2019-03-28|Fluid connection device|
    PCT/IB2019/052526| WO2019150353A1|2018-02-02|2019-03-28|Fluid connection device|
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