• 专利附录
  • 专利说明
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    • 专利摘要:
    HYDRAULIC CONNECTOR FOR A WINDSCREEN CLEANING BLADE WITH SUPPORT FOR VERTICAL SLIDES This is a set for the production of a cleaning system, comprising an end part (2) of a cleaning arm designed to move a cleaning blade (3) over the surface to be cleaned and a hydraulic connector (30) comprising at least one pipe element (31, 32) for carrying a liquid to the cleaning blade (3), said end part comprising at least one means (8) for supporting said hydraulic connector, ensuring that it is maintained longitudinally with reference to the wiper arm. It is characterized by the fact that said support means allows movement of said hydraulic connector (30) in a direction convergent with the longitudinal direction.
    公开号:BR112013013657B1
    申请号:R112013013657-0
    申请日:2011-12-01
    公开日:2020-11-17
    发明作者:Vincent Izabel；Xavier Bousset；Guiseppe Grasso；Julien Sauvant；Florent Delfosse；Gerald Caillot；Holger Fitterer；Uwe Renz；Andreas Zygan；Heiko Schmh；Richard Düsterhõft；Steffen Pommerening
    申请人:Valeo Systemes D'essuyage；Daimler Ag；
    IPC主号:
    专利说明:

    [001] The field of the present invention is that of vehicle equipment, and, more particularly, equipment for cleaning motor vehicle windows.
    [002] Motor vehicles usually come equipped with windshield wiper systems in order to wash the windshield and prevent the driver's view of the environment from being obstructed. These windshield wipers are conventionally driven by a wiper arm that performs an angular movement back and forth and comprises elongated wiper blades, which support wiper blades made of an elastic material. These blades rub against the windshield and remove water by moving it out of the driver's field of vision. The cleaning blades can be constructed in two ways: in a conventional version, with articulated arms that hold the scraper blade in several different positions, or, in a more recent version, called “flat blade”, with a semi-rigid assembly that retains the scraper blade along its entire length. In both solutions, the wiper blade is connected to the rotating wiper arm of the windshield wiper by a set consisting of a mechanical connector and an adapter. The mechanical connector is a part that is attached to the articulated arm or directly on the flat blade, while the adapter is an intermediate part that allows the connector to be attached to the wiper arm of the windshield wiper. These two parts are connected to each other by means of a transversal spindle that allows their relative rotation in a plane perpendicular to the windshield, passing through the wiper arm.
    [003] The windshield wipers are also equipped with devices to transport a windshield washer fluid that is brought from a tank located in the vehicle and that is sprayed towards the windshield by nozzles located in or around the windshield or the windshield wiper itself for better distribution of the liquid. In the case of nozzles placed on the wiper blades, the windshield washer fluid is brought, before being distributed among them, by piping elements that are attached to the wiper arm of the windshield wiper and are connected to the windshield wiper system. distribution of the cleaning blade on the mechanical connector by a rigid part, called the hydraulic connector.
    [004] These tubing elements, which are generally flexible and in two to ensure cleaning both in the external and return directions of the wiper blade, lead to the hydraulic connector that is attached to the mechanical connector by appropriate fittings and that ensure the necessary seal with the same. The mechanical connector, therefore, comprises holes capable of accommodating, through a sealed connection, said hydraulic connector fittings.
    [005] In models for high-end vehicles, there are also devices to heat the windshield wiper in order to defrost the wiper blade in the event of severe cold and prevent it from sticking to the windshield under the action of ice. These devices, which are more especially adapted to flat blades, generally comprise a heating device integrated in the assembly that supports the scraper blade and in which electrical resistors are placed. They also require an electrical connection device capable of interacting with the mechanical connector in order to transmit electrical current from the vehicle to the heating device. The electrical connector is usually connected to the hydraulic connector before it is installed in the mechanical connector in order to be attached to the same connector at the same time. The quick connect devices then ensure the contact between the pins of the electrical connector and those of the mechanical connector and, finally, the contact with the heating resistors of the assembly that supports the scraper blade.
    [006] Document WO2010 / 034445 shows an embodiment of a mechanical connector that accommodates a hydraulic connector through which the windshield washer fluid is displaced. It also shows an electrical connector that supplies electrical power to the mechanical connector.
    [007] Although the liquid tubing elements and the hydraulic connector are usually connected to the wiper arm of the windshield wiper, the mechanical connector is connected to the wiper blade and is necessary to provide the connection of the hydraulic connector, and, if necessary , from the electrical connector, to the mechanical connector when there is a change in the cleaning blade. This operation is usually carried out in a position, called the service position, in which the cleaning blade is positioned in relation to the cleaning arm so as to form an angle, by rotation around the cross spindle connecting the mechanical connector to the adapter.
    [008] It is necessary to ensure that the hydraulic and electrical connectors are correctly aligned during their installation on the mechanical connector, otherwise, an assembly error would result in a risk of leakage of the windshield washer fluid at the junction of the two connectors and / or bad electrical contact. This operation is performed blindly, with the hydraulic connector being located under the upper part of the cleaning arm, which prevents a good view of the parts to be assembled. WO2010 / 034445 does not make it possible to align the hydraulic connector in relation to the mechanical connector, as the hydraulic connector is isostatically mounted on the wiper blade, thus preventing any relative movement from one to the other.
    [009] Furthermore, when the cleaning blade is detached or removed from the cleaning arm, it is important that the hydraulic connector, and, if necessary, the electrical connector, if connected to it, remain connected to the cleaning arm. This prevents the hydraulic connector from being pulled by the mechanical connector in its separation movement from the wiper arm of the windshield wiper. In addition, it is not acceptable to leave the hydraulic connector suspended under the terminal part of the windshield wiper arm when the wiper blade is removed.
    [010] Finally, during reinstallation, it is not conceivable to ask the operator to hold the hydraulic connector in position with one hand while reinstalling the wiper blade on the arm with the other hand. This situation makes the installation of the cleaning blade particularly difficult and not very user friendly, since the mere installation of the cleaning blade on the arm already requires the use of both hands, one of them being dedicated to the cleaning blade and the other to the cleaning arm windshield.
    [011] Therefore, it is important to facilitate the insertion and removal of the hydraulic connector from the mechanical connector and the verification that the connection and disconnection are carried out correctly, even if the operator is inexperienced. The same applies to the electrical continuity to be provided between the pins of the electrical connector and those of the mechanical connector.
    [012] The purpose of the present invention is to remedy these disadvantages by proposing a device that makes it possible to guide the hydraulic connector when it is inserted into the mechanical connector and retain it in place on the arm when the last one is removed. This guiding function can also perform that of the electrical connector when it is first mounted on the hydraulic connector.
    [013] Therefore, the object of the invention is a set for the production of a cleaning system, comprising an end part of a cleaning arm designed to move to a cleaning blade and a hydraulic connector comprising at least one pipe element to carry a liquid. for the cleaning blade, said end portion extending in a longitudinal direction and comprising at least one means for supporting said hydraulic connector ensuring that it is retained in the longitudinal direction, characterized by the fact that said support means allows movement of said hydraulic connector in a direction converging with the longitudinal direction.
    [014] The freedom of movement of the hydraulic connector allows automatic alignment of the hydraulic connector with a mechanical connector connected to the wiper blade, and therefore a fixation of the two parts without the risk of leakage of the windshield washer fluid in its connection and according to a particularly simple application.
    [015] According to a first aspect of the invention, movement allows the hydraulic connector to move closer or further away from the terminal part.
    [016] According to a second aspect of the invention, the support means allows the hydraulic connector to rotate in relation to the terminal part.
    [017] According to another aspect of the invention, movement and rotation occur in a plane that passes through said longitudinal direction and perpendicular to the plane traveled by the cleaning arm during the cleaning process.
    [018] Preferably, the support means is an insert fixed to the terminal part. This configuration has the advantage of facilitating the integration of the hydraulic connector in the terminal part.
    [019] Preferably, the hydraulic connector comprises at least one lateral projection and the support means at least one slot in which said projection is housed.
    [020] In a first embodiment, said slot is in the form of a groove extending in said plane and capable of guiding said projection in its movement of the hydraulic connector closer to or further from the terminal part.
    [021] In alternative embodiments, said hydraulic connector comprises a rotation immobilization lock and said support means comprises a device for immobilizing the rotation of the hydraulic connector by interaction with said lock, when said hydraulic connector is in a position maximum distance from the wiper arm.
    [022] Preferably, said rotation-immobilization device forms a rigid point for the passage of said lock to and out of the rotation immobilization position.
    [023] In a second embodiment, the immobilization lock is a longitudinally extending ridge and the immobilization device is a longitudinal narrowing of the crack.
    [024] In a third embodiment, the immobilization lock is a ridge that extends longitudinally and the immobilization device is a tooth of a tongue that can flex in the direction perpendicular to the plane of movement of the hydraulic connector.
    [025] The invention also relates to a cleaning system connection device comprising an end part of a cleaning arm designed to move a cleaning blade over the surface to be cleaned, a cleaning blade, a mechanical connector attached to said cleaning brush. in order to connect it to the cleaning arm by means of an adapter and a hydraulic connector comprising at least one pipe element to conduct liquid to the cleaning blade, said adapter being inserted between the cleaning arm and the mechanical connector in order to allow that the mechanical connector rotates in relation to the cleaning arm between a position of use and a service position, characterized by comprising an assembly formed of a terminal part and a hydraulic connector, as described above.
    [026] Preferably, the mechanical connector comprises at least one locking means for locking said hydraulic connector to the mechanical connector. This ensures that the two connectors are properly attached and that there is no leakage of windshield washer fluid at their junction.
    [027] In a particular embodiment, the locking means is an arm that extends longitudinally in relation to the mechanical connector capable of interacting with a lock forming a protrusion and extending laterally from the hydraulic connector.
    [028] According to a preferred embodiment, said locking means forms a rigid point for the passage of said lock to the locked position and out of it. This rigid point shows the operator that the connection has been made effectively.
    [029] Preferably, said lock is a trunnion and the arm is grooved in the longitudinal direction to form two parallel branches that have, among them, a circular cut formed to receive the said trunnion.
    [030] Preferably, the hydraulic connector is supported by the support means when the mechanical connector is in the service position.
    [031] Preferably, the hydraulic connector is, in the service position, held in place by the support means and prevented from turning, so that its pipe element is in alignment with the corresponding hole in the mechanical connector, the rotation being released in the service position.
    [032] In a particular embodiment, the hydraulic connector is free, in the position of use, to move in translation in the plane that passes through the said longitudinal direction and perpendicular to the plane traveled by the cleaning arm during cleaning.
    [033] The invention will be better understood, and other objectives, details, aspects and advantages of it will become clearer during the following detailed explanatory description of various embodiments of the invention presented as examples that are merely illustrative and not limiting, with reference to the schematic drawings attached.
    [034] In the drawings: - Figure 1 is a general view, in perspective, of a cleaning system for a motor vehicle window; - Figure 2 is a detailed view of Figure 1, showing the connection between the wiper arm and the windshield wiper blade; Figure 3 is an exploded view of a windshield wiper comprising a wiper arm and a hydraulic connector according to the first embodiment of the invention; Figure 4 is a perspective view of the hydraulic connector of Figure 3 and its support means on the cleaning arm according to the first embodiment; - Figure 5 is a perspective view, from below, of the cleaning arm of Figure 3 and its support means, according to the first embodiment; - Figure 6 is a perspective view of the hydraulic connector of Figure 3 installed in a mechanical connector according to the first embodiment; - Figure 7 is a perspective view, from below, of the mechanical connector of Figure 6 mounted on a windshield wiper arm; Figure 8 is a front view, in partial section, of a cleaning device according to a second embodiment of the invention, in the use position; - Figure 9 is a front view, in partial section, of the cleaning device of Figure 8, in the service position; - Figure 10 is a front view, in partial section, of the cleaning device of Figure 8, the hydraulic connector being in the intermediate position in the mechanical connector; - Figure 11 is an exploded view of the elements that constitute a cleaning device according to a third embodiment, and - Figure 12 is a front view, in partial section, of a cleaning device of Figure 11, mounted in the use position.
    [035] It should be noted that the figures reveal the invention in detail and that they can of course be used to further define the invention, if necessary.
    [036] In the remainder of the description, the terms “longitudinal” or “lateral” refer to the orientation of the wiper arm on which the windshield wiper blade is mounted. The longitudinal direction corresponds to the main axis of the cleaning arm on which it extends while the lateral orientations correspond to straight converging lines, that is, lines that cross the longitudinal direction, notably perpendicular to the longitudinal axis of the cleaning arm in its plane of rotation. For longitudinal directions, the terms "external" or "internal" are understood in relation to the connection point of the cleaning blade to the cleaning arm, the term "internal" corresponding to the part where the cleaning arm and half of a cleaning blade extend . Finally, the directions referenced by upper or lower correspond to orientation perpendicular to the plane of rotation of the wiper arm, the term "lower" containing the plane of the windshield.
    [037] Figures 1 and 2 show a windshield wiper consisting of a wiper arm or arm 1 extending, at its external end, by a terminal part 2 which is fixed, inside, by fitting it to the wiper arm 1. A terminal part 2 covers an adapter 20 that supports the wiper blade 3 by means of its mechanical connector 10. The purpose of the adapter 20 is to be inserted into the terminal part 2 by a translation movement along a longitudinal axis, in order to come to the position of use, in which it is positioned in contact with a corresponding shape provided for the terminal part 2. It is then reversibly fixed to it by means of a retractable locking button 4 that interacts with a recess formed for this purpose in the top of the terminal part.
    [038] Referring now to Figure 3, the detail of the elements connecting the cleaning blade 3 to the cleaning arm 1 can be seen.
    [039] The end part 2 is in the shape of an inverted "U" in which the opening of this "U" shape faces the windshield. The end part 2 comprises a base 2c at the top and two side branches 2a and 2b extending towards the window. At the base 2c, a hole 7 is formed in which the retractable locking button 4 of the adapter 20 is housed. The lower end face of each side section comprises an edge folded in 90 ° in the direction of the internal volume defined by the base and the branches, which has the double function of guiding the insertion of the adapter 20 longitudinally and serving as a translation support for the supports corresponding devices placed on adapter 20. A support medium 8 is connected to each side section of the terminal, whose function is to support the hydraulic connector and keep it in translation when the cleaning blade 3 is removed while allowing other movements, which is one of the objectives of the invention and which will be described in detail below.
    [040] The adapter 20 is in the form of a fork corresponding to the internal volume of the terminal part 2 in order to be housed therein. Two side walls 20a and 20b are joined by a bridge 21 and each comprises, at its free ends, an outer edge 22 folded to the outside of the adapter. These outer edges 22 form a translation support when they rest on the folded edges of the side branches of the terminal part 2. This adapter 20 also comprises two holes which are formed through its side walls 20a and 20b and which have a coincident axis, designed to function as a axis of rotation between the cleaning blade 3 and the cleaning arm 1 when the cleaning system incorporating the hydraulic connector is mounted. Specifically, the wiper blade must have at least a degree of rotational freedom with respect to the wiper arm 1, and more specifically, with respect to the end part 2, in order to allow the wiper blade 3 to follow the curvature of the window to be cleaned.
    [041] The mechanical connector 10 is fixed non-removably to the cleaning blade 3 in order to transmit the mechanical force of the cleaning arm 1 to the cleaning blade 3. It has a substantially parallelepiped shape extending on the axis of the cleaning blade, with two side walls from which two trunnions 17 extend laterally, which have the dual function of holding the mechanical connector on the adapter 20 and working, due to its interaction with the holes formed in the side walls 20a and 20b of the adapter, as an axis for the rotation of the cleaning blade 3 in relation to the cleaning arm 1.
    [042] Outside, the mechanical connector 10 has a wall 11, called a cover, which first closes the front of the terminal part 2 and acts as a screen to protect the components contained within that terminal part 2, and, secondly , provides an exquisite external finish. The face opposite the cover 11, called the inner face, comprises holes (not visible) for hydraulic and electrical connection with the corresponding elements of the hydraulic connector 30 and the electrical connector 40.
    [043] The internal face of the mechanical connector 10 comprises two hydraulic inlet holes extended by internal channels for distribution of the windshield washer fluid, which are designed to interact with the piping elements 31 and 32 of the hydraulic connector 30 that the provide with liquid. These distribution channels (not shown in the figures) extend inside the mechanical connector 10 to be flush with the supply ducts 12 of the spraying tubes 6 for the spraying of the liquid by the cleaning blade; as indicated above, these tubes extend along the two edges of the wiper blade 3 in order to spray the windshield washer fluid when the wiper blade moves back and forth. The internal face of the mechanical connector also comprises holes forming female connectors capable of accommodating male pins 42 and 43 supported by electrical connector 40, which provide the necessary electrical energy for the heating element incorporated in the cleaning blade to operate.
    [044] The hydraulic connector 30 takes the form of two pipe elements 31 and 32 positioned in parallel longitudinally and mechanically connected to each other by fixing or connection bridges 35. As an example, when the pipe element 31 or 32 forms a pipe of cylindrical section, the direction of extension of the pipe element is formed by a central straight line of the cylindrical section.
    [045] Each of these tubing elements 31 and 32 comprises two sectors that extend in directions oriented at an angle in relation to each other, the junction between these sectors forming an elbow. Such a structure makes it possible to adapt the shape of the pipe elements 31 and 32 to the shape of the end part 2 under which they are placed. Inside, each of these tubing elements comprises a stepped or stepped coupling to which flexible windshield washer fluid supply ducts are attached that advance along the wiper arm 1 from the liquid tank. Outside, each of the tubing elements 31 and 32 in a cylindrical shape capable of being inserted into the hole of one of the internal distribution channels of the mechanical connector 10. O-rings are placed close to that end in order to ensure that the seal between the pipe elements 31 and 32 and the holes of the distribution channels they enter.
    [046] In its lower part, the hydraulic connector 30 comprises coupling means 37 designed to interact with corresponding support means in the electrical connector, in the configuration in which the electrical connector is supported by the hydraulic connector and fixed in it before the assembly is coupled to the mechanical connector 10. As shown in Figure 3, the coupling means 37 consists of a cradle or a U-shaped element that closes on the bottom face of the hydraulic connector 30, within which the body of the electrical connector 40 is inserted. Means for immobilizing the electrical connector in longitudinal translation on the hydraulic connector 30 can also be used in order to prevent the electrical connector from being removed after being placed in place. It is quite clear that any other method of coupling the electrical connector 40 to the hydraulic connector 30, or even an absence of coupling, this being carried out directly on the mechanical connector, can be designed without departing from the context of the invention.
    [047] Laterally, the hydraulic connector 30 comprises two projections 34 in the form of discs that extend in a vertical plane parallel to the piping elements, each of which supports a trunnion 33 on its external face. These cylindrical sections develop or extend laterally to form a spindle, the length of which is close to the width of the terminal part 2, while remaining shorter than the width to allow the hydraulic connector 30 move inside the terminal part 2. Finally, inside, the hydraulic connector 30 supports, in the first embodiment, a push button 5 or support button, cylindrical in shape with a triangular section, one of the faces from which it extends perpendicular to the direction of extension of the pipe elements 31 and 32 in order to allow, by longitudinal pressing on this button 5, the pipe elements 31 and 32 to be inserted in the distribution channels of the mechanical connector.
    [048] As illustrated, the electrical connector 40 comprises a body which is inserted into the coupling means 37. The electrical connector also receives a sealing device 41 slid over the body. The sealing device 41 seals the electrical connection between the electrical connector and the mechanical connector. Body 40 is perforated longitudinally by two hollow tubes in which metal connectors are placed providing the electrical connection between the power supply wires (not shown) that lead from the passenger compartment by means of arm 1 and male pins 42 and 43 which provide the electrical connection to the electrical circuit inside the mechanical connector 10 that passes through it to reach the scraper blade heating resistors.
    [049] Referring now to Figure 4, the detail of a hydraulic connector 30 according to the first embodiment of the invention can be seen. The two tubing elements 31 and 32 are parallel and connected to each other by two fixing bridges 35 in order to form a solid part, ending at its internal end with the push button 5. O-rings are placed in a groove 36 close to the outer end of each of the tubing elements 31 and 32 in order to seal them with the corresponding internal distribution channels of the mechanical connector 10. Two disc-shaped projections 34 or projections with a flat angular sector extend vertically on either side of each of the pipe elements 31 and 32 and are molded with those pipe elements. Each supports a trunnion 33 that extends laterally, perpendicular to the two discs and engages in a slot-shaped slot 9 formed in the support medium 8. These two trunnions 33 form a rotation spindle that provides the hydraulic connector with a degree of freedom to rotate in relation to the terminal part 2.
    [050] The hydraulic connector 30 also comprises a lock or longitudinal locking sleeve 38 that extends laterally from one of the pipe elements 31, on the outside side in relation to the sleeve 33 supported by that pipe element 31, and whose extension corresponds substantially to that of trunnion 33. Therefore, it is understood that the extension direction of lock 38 and the extension direction of trunnion 33 are parallel.
    [051] The purpose of this locking sleeve 38 is to serve as a means to prevent a translation in the longitudinal direction to the hydraulic connector 30 when it is inserted into the mechanical connector 10. This locking sleeve 38 also generates a rigid point when that same connector hydraulic is removed from the mechanical connector.
    [052] The support means 8, which, in use, is fixed to the terminal part 2, has the shape of a fork that remains permanently fixed to the terminal part 2 while it is accommodated next to the internal surface of the latter. This support means 8 comprises, at each of its ends, two edges folded 90 ° outwards in order to engage ad hoc cracks formed on the lateral faces 2a and 2b of the terminal part 2 to ensure its longitudinal positioning in relation to the terminal part 2. The support means 8 comprises, in each of its lateral faces, a slit 9, which is through or blind, which forms a groove, with a shape in an arc gave a "banana" type circle. These two slots 9, in which the sleeves 33 can move, provide an additional degree of freedom to the hydraulic connector 30 in a direction that is convergent and distinct from the longitudinal direction, allowing it to follow the mechanical connector in which it is fixed in use and absorb the angular differences that exist between the cleaning arm 1 and the mechanical connector 20 of the cleaning blade 3 when it moves over the window. This converging direction is, for example, a vertical direction. They also perform a longitudinal locking function of the hydraulic connector, trapping its trunnions 33 in order to fix it to the terminal part 2 when the cleaning blade 3 is removed from the cleaning arm 1.
    [053] Figure 5 shows the end part 2 of the cleaning arm 1 equipped with the support means 8 joined to the inner faces of the end part 2, with its edges folded outwards in place of the slits formed on the side faces 2a and 2b.
    [054] Figure 6 shows the hydraulic connector 30 mounted on the mechanical connector 10, as in the use position or in the service position before the two elements are separated. The piping elements 31 and 32 are inserted into the terminal holes of the internal windshield washer fluid distribution channels. In the connection position, shown in the figure, the hydraulic connector 30 is pressed against the mechanical connector 10 and the seal is provided by O-rings that are not visible because they are located inside these internal channels. The mechanical connector 10 comprises, on one of its side faces 10a, a locking means that takes the form of a longitudinal extension molded on the side face of the mechanical connector 10. This locking means has the form of an arm 14 that has the function to interact with the locking sleeve 38 supported by one of the tubing elements 31 of the hydraulic connector. For this, the longitudinal end of the arm 14 is provided with slits in the longitudinal direction so as to form two parallel branches 14a and 14b which have, among them, a circular cut formed to receive the locking sleeve 38. These branches are able to separate from each other to allow the trunnion to pass when the hydraulic connector 30 is inserted and then return to its initial position thanks to its elasticity to trap that locking trunnion 38 and prevent it from coming out of the circular cut again when the connector hydraulic is in the final position, that is, inserted into the mechanical connector. The presence of this cut makes it necessary to apply sufficient extraction force to the hydraulic connector to remove it from the mechanical connector, which is defined as being greater than the forces that are applied in use, so that no accidental decoupling occurs. It also generates a rigid point that allows the operator to confirm that the hydraulic connector 30 is correctly inserted in the mechanical connector 10 when the cleaning blade 3 is installed.
    [055] Figure 7 shows, for its part, the terminal part 2 supporting the mechanical connector 10 to which the hydraulic connector 30 is coupled with its trunnions inserted in the slot 9 of the support medium 8.
    [056] With reference now to Figures 8 to 10, a second embodiment of the invention will be described.
    [057] In Figure 8, the cleaning blade 3 is in the position of use with the terminal part 2 folded over the mechanical connector 10 which, for its part, is connected by the interaction of the retractable locking button 4 of the adapter 20 with its hole 7 The end part 2 supports, as before, a support means 8, in the form of a fork, which is incorporated in its internal part, to which it is rigidly fixed. The support means 8 thus forms an insert that conforms to the shape of the inner wall of the terminal part.
    [058] This illustrative embodiment of the support means 8 has, in each of its lateral faces, as in the first embodiment, a slit 9 or groove, which is passing or blind, in the form of an arc of a circle, designed to accommodate corresponding locking ridges 133 forming a lateral protrusion in relation to the hydraulic connector 30. This slot 9 has a substantially rectangular shape extending vertically, the long side of which is curved. Its width is constant over most of its long side with a narrowing 139 close to the short bottom side before resuming its initial width on the short bottom side, thus delimiting a lower part 135 that forms a means of rotation immobilization for a ridge bottom 133 of the hydraulic connector. This narrowing 139 also forms a rigid point for the entry or exit of the lower locking crest 133 at the bottom 135.
    [059] The hydraulic connector 30 is similar to that described for the first embodiment, except that the lateral projections consist of two locking ridges, a lower ridge 133 that meets the short bottom side of the slit rectangle 9 when the mechanical connector is in the service position, and an upper crest 134 that meets the short upper side of the slit rectangle 9 when the mechanical connector is in the use position.
    [060] In the last position, the lower crest 133 passed through the rigid point due to the narrowing 139 and the two ridges have a certain freedom of movement between, on the one hand, the upper crest 134 in contact with the short upper side and, on the other , with the lower ridge 133 coming into contact with the narrowing 139 of the width of the rectangle. This degree of freedom corresponds to the need to allow the mechanical connector 10 and the cleaning blade 3 to move angularly with respect to the cleaning arm 1 so as to follow the shape of the window during the displacement of the cleaning arm.
    [061] The transition from the service position to the use position, or vice versa, takes the form of the passage of the lower ridge 133 through the narrowing 139 of the slit rectangle 9, which requires a quick action by the operator in order to fit the lower crest at the bottom 135, which creates a sensation of passing through a rigid point in order to inform the operator that his action has been achieved in the appropriate manner.
    [062] Although Figure 8 shows the wiper blade in the position of use with the lower ridge 133 having an angular freedom range, Figure 9 shows the wiper blade in the service position. The lower ridge 133 is fitted in the lower part 135 of the slit rectangle 9, which fixes the hydraulic connector 30 to the support means 8 and, consequently, to the end part 2 and the cleaning arm 1.
    [063] Figure 10 shows the removal of the hydraulic connector 30 from the mechanical connector 10. The cleaning blade, having previously been placed in the service position, the lower crest 133, not shown here, was inserted in the lower part 135 of the slit rectangle 9 , also not illustrated. From this position, a tension force was applied in the longitudinal direction by the operator, which causes the hydraulic connector 30 to separate from the mechanical connector 10 and what reveals the means of fixation that exists between them when they are in position of use.
    [064] As in the first embodiment, one of the side faces of the mechanical connector 10 comprises a longitudinal extension in the form of an arm 14 which has the function of interacting with a locking sleeve 38 supported by one of the tubing elements 31 of the hydraulic connector 30 , positioned on the outside in relation to the ridges 133 and 134. The longitudinal end of the arm 14 is again provided with a slit in the longitudinal direction so as to form two parallel branches 14a and 14b which have, between them, a circular cut formed to receive the trunnion locking point 38 and forming a rigid point at the insertion end of the hydraulic connector 30 in the mechanical connector 10. This fixation then constitutes the seal between the two elements when the wiper arm rotates in normal use.
    [065] With reference now to Figures 11 and 12, a third embodiment will now be described.
    [066] Figure 11 shows all the elements that form a connection device for a cleaning system according to the third embodiment. Elements that are identical to the first two embodiments are indicated by the same reference number and are not described again.
    [067] In this example, the support means 8 has a slit 9, which is either through or blind, having a substantially rectangular shape that extends downwards in a triangular crest shape. The support element of the hydraulic connector that interacts with the support means 8 is, in this case, a projection 233 extending laterally from the hydraulic connector and having a triangular shape that similarly reproduces the hollow shape of the triangular part bottom of the slot 9. The principle of operation remains the same as that of the second embodiment, namely, that the protrusion 233 fits into the lower part of the slot 9 when the wiper blade is moved to the service position. This projection 233 can move downwards, that is, in a direction that converges with the longitudinal direction of the cleaning arm, in the upper part of this slot, in the position of use. The hydraulic connector 30, therefore, can follow the movements of the cleaning blade 3 without being blocked by its relationship with the end part 2 during the movements from side to side of the cleaning blade in the window or by the associated relative movements of the cleaning blade and the cleaning arm.
    [068] In this embodiment, the connector 30 comprises two side faces 34 positioned on each pipe element, from which first the locking sleeves 38, which must be inserted in the arm 14 of the mechanical connector 10, and the two projections 233 that extend above said locking sleeves 38. These faces 34 can also support two ridges 234 that extend longitudinally backwards, that is, inside the windshield wiper, and its purpose is to function as an element to immobilize the hydraulic connector 30 in the support medium 8 when the cleaning blade 3 is in the service position. The purpose of these ridges 234, when there is a transition from one position of use or service to the other, is that they be transposed by flexible tongues 235 positioned in the support medium 8 behind the slot 9. The flexible tongues 235 end in a tooth in the which the passage over the ridges produce a rigid point that, on one side, keeps the hydraulic connector 30 fixed to the support medium 8 in the service position, and, on the other, informs the operator that the coupling in the service position fact has occurred. This function is similar to that of engaging the lower ridge 133 at the bottom of the slit rectangle 9 in the second embodiment.
    [069] As illustrated, the electrical connector 40 comprises a body that is inserted into the coupling means 37 originating from the hydraulic connector. The electrical connector also receives a sealing device 242 slid over the electrical connector body. The sealing device 242 seals the electrical connection between the electrical connector and the mechanical connector. An O-ring 236 provides the hydraulic seal between each pipe element 31 or 32 and the duct or channel formed in the mechanical connector that receives the end of that pipe element. A retaining part 241 formed by four tubular elements is slid over the tubing elements of the hydraulic connector 30 and over an interlocking part of the electrical connector 40. This retaining part for the O-rings 36 and the sealing device 242. In in other words, the retaining part 241 forms a support in relation to the O-rings and the sealing device in order to ensure its placement, and therefore its function.
    [070] Finally, Figure 12 shows a hydraulic connector 30 inserted in a mechanical connector 10 in the use position. The protrusion 233 is at the top of the slot 9, that is, it has full latitude to move in a direction that converges with the longitudinal direction, for example, vertically. The hydraulic connector thus follows the mechanical connector in the displacement of the cleaning blade 3 over the window, the hydraulic connector 30 being aligned with it. Similarly, the ridge 234 is above the tooth of the tongue 235 forming a rigid point and its movement is also permitted beyond the tooth.
    [071] The locking sleeve 38 is inserted in the circular cut of the arm 14 of the mechanical connector 10, thus fixing the hydraulic connector 30 to the mechanical connector 10 and sealing its connection by means of the O-rings 236 (visible in Figure 11).
    [072] The replacement of a wiper blade on a windshield wiper arm comprising a hydraulic connector according to the first embodiment of the invention will now be described, including the removal of the worn wiper blade and its replacement with a new wiper blade. The replacement of a wiper blade according to the second and third embodiments is carried out in a similar manner.
    [073] The operator starts by placing the wiper blade 3 in the service position, moving it angled from the longitudinal direction of the wiper arm 1 and the end part 2. The hydraulic connector 30 is held longitudinally by its sleeves 33 which are held in the cavities 9 of the support means of the two side faces 2a and 2b of the end part, but it retains a freedom of movement to rotate around the spindle supporting its trunnions. It can, therefore, without over over that cavity during this movement. In the second and third embodiments, this movement is accompanied, respectively, by a fixation of the lower crest 133 or the crest 234 with the support means 8, while passing through a rigid point that informs the operator of this fixation. In this case, it involves the transition from the use position to the service position.
    [074] This movement to the service position causes the cleaning blade 3 to rotate in relation to the adapter 20, which remains aligned with the terminal part 2 on which it is mounted. After separating the adapter 20 from the terminal part 2 by pressing the retractable button 4 in order to remove it from the hole 7, the operator can slide the adapter onto the slides formed by the folded edges of the side faces 2a and 2b of the terminal part, either pulling the adapter 20 or the mechanical connector 10. When pulling the adapter, the operator releases the locking sleeve 38, extracting it from the circular cut of the arm 14 of the mechanical connector 10, which allows a relative movement of the adapter, the connector mechanical 10 and the wiper blade 3 in relation to the end part 2 until the wiper blade 3 is completely separated from the wiper arm 1.
    [075] The installation of a new wiper blade is carried out in reverse, with the hydraulic connector 30 being placed in the support medium 8 and, in particular, in the second and third embodiments, the second first engaged in the lower position of the slot 9. In these In two embodiments, the orientation of the tubing elements 31 and 32 of the hydraulic connector 30 in relation to the end part 2 is then such that they will naturally be aligned with the holes of the internal liquid distribution channels of the mechanical connector 10 when assembled. The adapter 20 is first opened to place it at an angle with the mechanical connector 10, and is then aligned with the end part 2 before being inserted into the inner volume of the end part and pulled until its edges 22 are meet the corresponding supports of the side faces 2a and 2b of the terminal part.
    [076] During this operation, the mechanical connector 10 is increasingly closer to the hydraulic connector 30, and, in the first embodiment, the operator rotates the hydraulic connector 30 around the trunnions 33 acting on the push button 5 in order to bring it to an angular position in which the piping elements 31 and 32 are aligned with the internal channels of the mechanical connector.
    [077] In the other two embodiments, this operation is performed without operator intervention, the alignment being predefined as indicated above by the interaction between the immobilization rotation lock and the support medium. Specifically, the angle imposed by this interaction places the hydraulic connector in relation to the end part of the cleaning blade at an angle that is identical or similar to the angle of insertion of the mechanical connector in the end part in the service position. The presence of a push button 5 is then no longer necessary. By continuing to push the mechanical connector 10 and the adapter 20 against the end part 2, the tubing elements 31 and 32 are inserted into the internal channels of the mechanical connector and ensure that the windshield washer fluid is fed into the tubes sprinkler 6.
    [078] Then, the operator closes the wiper blade 3 against the wiper arm 1, that is, moves it from the service position to the use position. Trunnion 38 remains immobilized on arm 14 of the mechanical connector that holds these two parts together and avoids any risk of this hydraulic connection separating during use. Closing the cleaning blade 3 on the cleaning arm 1 and lowering the adapter 20 against the mechanical connector 10, respectively, in the second and third embodiments, cause the lower crest 133 of the lower part 135 to exit cavity 9 or crest 234 to pass over the end tooth of the flexible tabs 235. The hydraulic connector is then no longer attached to the end part 2 and can follow the relative movements of the mechanical connector in relation to the wiper arm when the window is cleaned.
    权利要求:
    Claims (15)
    [0001]
    1. A cleaning system connection device, comprising an end part (2) of a cleaning arm (1), a cleaning blade (3), a mechanical connector (10) attached to said cleaning blade in order to connect it to the arm wiper (1) by means of an adapter (20) and a hydraulic connector (30) comprising at least one pipe element (31, 32) to conduct liquid to the wiper blade (3), said adapter being inserted between the wiper arm (1) and mechanical connector (10) in order to allow the mechanical connector (10) to rotate in relation to the wiper arm (1) between a use position and a service position, said system connection device wiper further comprising a set for producing the wiper system, said set comprising the end part (2) of the wiper arm (1) designed to move the wiper blade (3) and the hydraulic connector (30), said end part extending in a longitudinal direction and comprising at least enos a means (8) to support said hydraulic connector (30) ensuring that it is retained in the longitudinal direction, CHARACTERIZED by the fact that said support means allows movement of said hydraulic connector (30) in a direction convergent with the longitudinal direction, namely, in a direction that crosses the longitudinal direction.
    [0002]
    2. Wiper system connection device, according to claim 1, CHARACTERIZED by the fact that the movement allows the hydraulic connector (30) to move closer or further away from the terminal part (2).
    [0003]
    3. Wiper system connection device, according to claim 1 or 2, CHARACTERIZED by the fact that the support means (8) allows the hydraulic connector (30) to rotate in relation to the terminal part (2).
    [0004]
    4. Wiper system connection device, according to claim 3, CHARACTERIZED by the fact that movement and rotation occur in a plane that passes through the said longitudinal direction and perpendicular to the plane traveled by the wiper arm during cleaning.
    [0005]
    5. Wiper connection device according to any of the preceding claims, CHARACTERIZED by the fact that the hydraulic connector comprises at least one lateral protrusion (33, 133, 233), the support means comprising at least one slot (9) in which said protrusion (33, 133, 233) is housed.
    [0006]
    6. Cleaning system connection device, according to claim 5, CHARACTERIZED by the fact that said slot (9) has the form of a groove that extends in said plane and capable of guiding said projection (33, 133 , 233) in a movement of the hydraulic connector (30) closer to or further from the terminal part (2).
    [0007]
    7. Wiper system connection device according to claim 6, CHARACTERIZED by the fact that said hydraulic connector comprises a rotation immobilization lock (133, 234) and said support means (8) comprises a device ( 135, 235) to immobilize the rotation of the hydraulic connector by interacting with said lock, when said hydraulic connector is in a position of maximum distance from the wiper arm (1).
    [0008]
    8. Wiper system connection device, according to claim 7, CHARACTERIZED by the fact that said rotation immobilization device (135, 235) forms a rigid point for the passage of said lock (133, 234) to the rotation immobilization position and out of it.
    [0009]
    9. Wiper system connection device according to claim 7 or 8, CHARACTERIZED by the fact that the immobilization latch is a ridge (133) extending longitudinally and the immobilization device is a longitudinal narrowing (139) of the slit (9).
    [0010]
    10. Cleaning system connection device, according to claim 7 or 8, CHARACTERIZED by the fact that the immobilization lock is a longitudinally extending ridge (234) and the immobilization device is a tongue tooth (235 ) which can flex in the direction perpendicular to the hydraulic connector's plane of movement (30).
    [0011]
    11. Wiper system connection device, according to any of the preceding claims, CHARACTERIZED by the fact that the mechanical connector (10) comprises at least one locking means (14) for locking said hydraulic connector (30) to the mechanical connector (10).
    [0012]
    12. Device for connecting the cleaning system according to claim 11, CHARACTERIZED by the fact that the locking means is an arm (14) originating from the mechanical connector (10) capable of interacting with a locking (38) that extends laterally from the hydraulic connector (30).
    [0013]
    13. Device for connecting the cleaning system according to claim 12, CHARACTERIZED by the fact that said locking means forms a rigid point for the passage of said lock to the locked position and out of it.
    [0014]
    14. Device for connecting the cleaning system according to claim 13, CHARACTERIZED by the fact that said lock is a trunnion (38) and in which the arm (14) is grooved in the longitudinal direction so as to form two parallel branches (14a, 14b) which have, among them, a circular cut formed to receive said trunnion (38).
    [0015]
    15. Device for connecting the cleaning system, according to any of the preceding claims, CHARACTERIZED by the fact that the connection of said hydraulic connector to the mechanical connector is direct.
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    同族专利:
    公开号 | 公开日
    ES2431615T3|2013-11-27|
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    MX2013006260A|2013-12-02|
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    CN103476647B|2016-06-01|
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    EP2460700A1|2012-06-06|
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    法律状态:
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-12-03| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-07-28| B09A| Decision: intention to grant|
    2020-11-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 01/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP10306340.0|2010-12-02|
    EP10306340.0A|EP2460700B1|2010-12-02|2010-12-02|Hydraulic connector for a windscreen wiper blade|
    PCT/EP2011/071528|WO2012072748A1|2010-12-02|2011-12-01|Hydraulic connector for a windscreen wiper blade with support for vertical slides|
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