• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Device for hingedly connecting a wiper blade (10) to a wiper arm (26) having a connecting member (18) fixed to the wiper blade (10) and a wiper member (10). link (16) fixed to the end of the wiper arm (26), this link member being pivotally connected to the connecting member (18). The connecting element (16) has a deflector structure (20) on its upper face (30) between the upstream ridge (36) and the downstream ridge (38).
    公开号:BE1018527A5
    申请号:E2006/0286
    申请日:2006-05-19
    公开日:2011-03-01
    发明作者:Christian Wilms；Hubert Verelst；Erik Kinnaert
    申请人:Bosch Gmbh Robert；
    IPC主号:
    专利说明:

    "Device for hingedly connecting a wiper blade to a wiper arm"
    Field of the invention
    The present invention relates to a device for hingedly connecting a wiper blade to a wiper arm having a connecting member attached to the wiper blade and a connecting member attached to the end of the wiper blade. wiper arm, this connecting element being pivotally connected to the connecting element.
    State of the art
    According to WO 02/34591 A1, there is known a windscreen wiper whose broom is hingedly connected by a device to a locking system on the top to a wiper arm. The wiper blade has a rubber profile with a sealing lip and a head bar. The lateral grooves of the head bar receive two resilient rails as bent support members for the rubber profile to exert with its wiping lip under the effect of the application force of the wiper arm to lean with a desired pressure against the vehicle window and can follow the bending of the window during sweeping movements.
    The device connecting the wiper blade to the wiper arm comprises a connecting element connected to the elastic rails by claws and pivotally mounted to a connecting element. This is removably connected to the wiper arm. For this, the wiper arm has an end of rectangular section which slides in a channel for engagement of the connecting element until a fastening element of the deformable elastic wall of the channel of the engagement enters a cavity of the wiper arm. When the latching member is not engaged or insufficiently in the wiper arm cavity, there is a risk that the wiper blade will come off the wiper arm during operation.
    GB 2 140 287 B discloses a wiper comprising a wiper blade whose caliper system is hingedly connected to the rod of the wiper arm according to the principle of lateral locking. The wiper blade has in the longitudinal direction, on both sides of the lateral locking link, a deflector and the wiper arm and rod are provided on the upstream side of the deflector and the wiper blade. -ice cream. The rod of the wiper arm integrally connected at one end to a hinge part of the wiper arm has a rectangular section whose long side is substantially parallel to the windshield at the ends while between the end zones, the rod is rotated along its longitudinal axis to be inclined relative to the vehicle window and strengthen the action of the deflector. Embodiments are also known in which the windscreen wiper rod is straight and whose inclination with respect to the windshield is obtained by a suitable design of the articulation piece and the connecting element to the windscreen. other end of the rod of the wiper arm.
    Wind tunnel tests have shown that the water on the windscreen wiper arm is carried by the circulating wind towards the connecting element and the connecting element to fall back on the windshield already cleaned during the descent movement of the wiper blade.
    DESCRIPTION AND ADVANTAGES OF THE INVENTION The invention relates to a device of the type defined above, characterized in that the connecting element has a deflector structure on its upper face between the upstream edge and the downstream edge.
    Tests with known wipers have shown that during the downward movement of the wiper blade, for example for a wiping position of 45 °, the dynamic pressure of the circulation wind at the transition between the upstream side of the connecting element substantially perpendicular to the windshield and the upper side and between the upper side and the downstream side substantially parallel to the upstream side, increases rapidly. This means that the air is very accelerated locally so that the water at this location, especially because of the transport on the wiper arm, is transferred at a higher speed downwards to the already cleaned part. windshield. Now, the deflector structure according to the invention makes it possible to reduce this acceleration and also the return of the water, which gives better wiping results.
    As also at the transition between the upstream side and the front face of the connecting element, there is a rapid increase in the dynamic pressure, it advantageously extends the structure of the deflector on the front end face of the connecting element and the end of the deflector structure in the upstream direction, facing the wiper blade is directed in the opposite direction and thus approaches the upstream side at this level.
    To avoid that during the downward movement of the wiper blade, water arrives on the downstream side through the gap between a support element of the wiper blade and the element of the wiper blade. connection, another development of the invention proposes to close the gap between the connecting element and the support element.
    drawings
    The present invention will be described below in more detail with the aid of an exemplary embodiment shown in the accompanying drawings in which: - Figure 1 is a partial perspective view of a wiper blade and of a wiper arm, - Figure 2 is a partial view according to Figure 1 corresponding to another angle of view, - Figure 3 is a variant of Figure 2.
    Description of an example embodiment
    According to an exemplary embodiment, a wiper blade 10 is hingedly connected to a wiper arm 26 according to the principle of locking from above; the wiper arm 26 is located substantially on the upstream side of the wiper blade 10. For such a configuration, the problem presented above is amplified but the means of the invention also apply to other connections between the windscreen wiper blade 10 and a wiper arm 26, for example with windscreen wiper blades whose arm 26 is connected to the wiper blade 10 according to the principle of lateral locking .
    The direction of attack of the circulation wind is indicated in FIGS. 1 to 3 by an arrow 24. A device for connecting the wiper blade 10 to the wiper arm 26 comprises a connecting element 18 fixed by claws 14 to the elastic rails 32 (Figure 3) serving as a support member for the wiper blade 10. The gap between the connecting member 18 and the elastic rails 32 is advantageously closed. The wiper blade 10 has a deflector 12 installed in the longitudinal direction of the wiper blade 10 on both sides of the connecting element 18.
    A connecting element 16 is pivotally connected along an axis transverse to the longitudinal direction of the wiper blade 10 to the connecting element 18. The connecting element 16 is fixed to the end of the arm of the wiper arm. windscreen wiper 26; at this level, the wiper arm is constructed as a wiper arm rod with a substantially rectangular section profile. A substantially square portion of the connecting member 16 overlaps the wiper blade 10. The upstream side 34 facing the flow wind forms an edge 36 in the transient region with the upper side 30 of the linkage member. 16. The corresponding transition between the upper side 30 and the downstream side 40 is formed by an edge 38 (Figure 2). In the same way, at the transition between the upstream side 34 and the front end face 28 of the connecting element 16, there is an edge 42. To reduce the rapid increase of the dynamic pressure at the edges 36, 38 42, there is provided a deflector structure 20 between the edges 36, 38 on the upper side 30 of the connecting element 16; this deflector structure continues on the front face 28 of the connecting element 16 (Figure 3). The end 22 of the deflector structure 20 is bent in the direction opposite to the direction of attack or upstream direction 24 so as to approach the downstream side 34 at this point. This solution is advantageous for opposing the acceleration of the traffic at the edge 42.
    The baffle structure may be formed as a projecting structure on the upper side as shown in the figures. But one can also envisage and it is possible to realize the deflector structure in the form of a stepped cavity of the edge 36 with respect to the upper face 30. This solution gives a dynamic effect as described above which will be slightly attenuated.
    Tests have shown that the means of the invention can significantly reduce the number of wiping periods until the disappearance of the downstream projection on the part of the windshield already cleaned.
    NOMENCLATURE
    10 Wiper blade 12 Deflector 14 Claw 16 Connection element 18 Connection element 20 Deflector structure 22 Front end 24 Wind direction 26 Wiper arm, wiper shaft 28 Front face 30 Top 32 Spring Rail 34 Upside 36 Edge 38 Edge 40 Downstream 42 Edge
    权利要求:
    Claims (5)
    [1]
    1 °) Device for hingedly connecting a wiper blade (10) to a wiper arm (26) having a connecting member (18) attached to the wiper blade (10) and a connecting member (16) attached to the end of the wiper arm (26), said connecting member being pivotally connected to the connecting member (18), characterized in that connecting element (16) has a deflector structure (20) on its upper face (30) between the upstream edge (36) and the downstream edge (38), and - the deflector structure (20) is extended on the front end face (28) of the connecting element (16) and in this region, it approaches by its end facing the wiper blade (10) on the upstream side (34) of the link (16).
    [2]
    2) Device according to claim 1, characterized in that the deflector structure (20) is formed in the form of a stepped cavity of the edge (36) relative to the upper face (30).
    [3]
    Device according to Claim 1, characterized in that a gap between the connecting element (18) and a support element (32) is closed.
    [4]
    4) Wiper blade (10) comprising a connecting element (18) for a device according to any one of claims 1 to 3.
    [5]
    5 °) wiper arm (26) having a connecting element (16) to be applied to a device according to any one of claims 1 to 3.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR2886254A1|2006-12-01|
    DE102005024717A1|2006-12-07|
    FR2886254B1|2009-04-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19856299A1|1998-12-07|2000-06-08|Bosch Gmbh Robert|Hinged device for connection of wiper blade to windscreens of motor vehicles has wind deflector strip on upper surface of support element that extends on both sides of connecting element in blade's longitudinal direction|
    DE19906288A1|1999-02-15|2000-08-17|Bosch Gmbh Robert|Device for pivot connection of windscreen wiper blade of motor vehicle has wiper strip mounted on spring-elastic band-form support element which on longitudinal sides protrudes over longitudinal sides of wiper strip by edge strips|
    DE102014110063A1|2014-07-17|2016-01-21|Valeo Systémes d' Essuyage|Connecting device between a wiper arm and a wiper blade|
    FR3096633B1|2019-05-31|2021-06-04|Valeo Systemes Dessuyage|Screed for training arm|
    法律状态:
    2013-11-30| RE| Patent lapsed|Effective date: 20130531 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE200510024717|DE102005024717A1|2005-05-30|2005-05-30|Device for articulating a wiper blade with a wiper arm|
    DE102005024717|2005-05-30|
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