• 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:
    Spring rail for a wiper blade and method of assembly The invention is based on a spring rail (36, 38, 40, 42, 44) for a wiper blade (10) in flaoh beam construction, which is curved concavely over its length to form a vehicle window and has a drive-side , the first end (20) describes an inner circle during a wiping movement and the other, one end (22) describes an outer circle, the spring rail (36, 38, 40, 42, 44) between its first end (20) and one end (22 ) has different physical, geometric and / or material properties and the ends (20, 22) have different shapes for their identification. It is proposed that the ends (20, 22) can alternatively be inserted in the longitudinal direction in a mounting device (66) whose receptacle (68) corresponds to the shape of one end: (22), but the shape of the first end (20 ) cannot reach the end of the receptacle (68) of the assembly device (66).
    公开号:BE1021530B1
    申请号:E2012/0225
    申请日:2012-04-04
    公开日:2015-12-09
    发明作者:Paul Criel；Block Peter De；Raf Greunlinx；Stany Vankriekelsvenne
    申请人:Robert Bosch Gmbh；
    IPC主号:
    专利说明:

    description
    title
    Spring rail for a wiper blade and method of mounting prior art
    The invention is based on a spring rail for a wiper blade and a method for its assembly according to the preamble of claim 1 and 8, respectively.
    Flat-blade wiper blades are widely used. They usually comprise a wiper strip, a support element with at least one spring rail and a connection element for articulated connection of the wiper blade with a wiper arm. In addition, a spoiler can be provided to increase the contact pressure by the wind of the vehicle. Furthermore, end caps are often provided at the ends of the wiper blade. The support member may have a spring rail aufweisep, which is housed in a longitudinal channel of the wiper strip, or a plurality of spring rails, which are housed in lateral longitudinal grooves of the wiper strip or stacked also in a longitudinal channel of the wiper strip.
    The spring rails are precambered concavely to a wiper lip of the wiper strip so that the wiper strip can follow different curvatures of the vehicle window under the contact pressure of the wiper arm. In order for the wiper strip to have a predetermined contact force against the vehicle window over its longitudinal extent, the spring rails have different properties over their longitudinal extent, in terms of their shape in terms of width and material thickness and the predetermined curvatures, with respect to physical properties, for example spring properties, and / or in terms of material properties. In order to avoid incorrect assembly of the spring rails, which consists in that a first, drive-side end is interchanged with a second, opposite end, special precautions must be taken.
    From DE 10 2007 057 631 A1 a wiper blade with two spring rails inserted in lateral longitudinal grooves of a wiper strip is known. These have at a first end at their the wiper strip longitudinal sides facing recesses, which cooperate with projections on a web, which is formed by the longitudinal grooves. The recesses take on the spring rails, the projections of the wiper strip, so that the ends of the spring rails are not pressed against the other parts of the spring rails to the outside. The second opposite end has no recesses, so that it is pushed by the protrusions in an incorrect assembly to the outside and is recognized by the fitter. However, such spring rails require matched to them wiper strips that increase the production cost.
    Disclosure of the invention
    According to the invention, the ends of the spring rail in the longitudinal direction in a mounting device are alternatively replaceable, whose recording corresponds to the shape of the one end of the spring rail, however, the shape of the first end can not reach the end of receiving the mounting device. At the level of penetration depth of the spring rail in the receptacle of the mounting device or at the length of the receptacle of the mounting device protruding part of the spring rail can be determined which end of the spring rail is located in the mounting device. The position of the spring rail relative to the mounting of the mounting device can be detected automatically by probe, camera surveillance or laser. These generate signals that are evaluated in control devices and control the further process flow.
    According to one embodiment of the invention, it is proposed that the one end has on its end face a recess which fits to a corresponding projection in the receptacle of the mounting device, while the first end has a straight end side. The recess may be arranged asymmetrically to the longitudinal sides of the spring rail and extend to one of the long sides. On the other hand, it is also possible that the recess is arranged symmetrically to the longitudinal sides of the spring rails. For this purpose, recesses in the form of a circular section are suitable.
    The most favorable form of the ends of the spring rail is a narrowing of the spring rail, wherein the longitudinal extension of the narrowing of the one end is longer than the longitudinal extension of the narrowing of the first end.
    In this case, recesses can be omitted on the end faces of the spring rails. If the receptacle of the mounting device adapted to the shape of the second end of the spring rail, the second end can penetrate deeper into the receptacle of the mounting device than the first end of the spring rail, so that a shorter length protrudes from the receptacle or the penetration depth of the spring rail in the receptacle larger is as if the shorter narrowing is plugged into the receptacle of the mounting device. In order to obtain clear information, it is expedient that the difference of the longitudinal extent of the narrowings is at least 1.5 mm, since such an amount is significantly greater than the expected manufacturing tolerances.
    There is according to a further embodiment, the possibility that the longitudinal extent of the narrowing at the other end of the spring rail is equal to zero, so omitted. Also in this case, the other end of the spring rail can not be pushed up to the end of the recording. In this embodiment, the narrowing at the second end of the spring rail can be kept very short.
    The invention also relates to a wiper blade with at least one spring rail whose end faces are profiled in such a way that manual and / or automatic detection of the ends is possible. This can be easily achieved if the end faces of the opposite ends are profiled differently. By manual visual inspection or when inserting the spring rails in a receiving device, the corresponding end can be identified beyond doubt.
    Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.
    Show it:
    1 is a side view of a wiper blade in flat bar construction,
    2 shows a cross section through a wiper blade according to Fig. 1,
    3 is a partial perspective view of two spring rails with a mounted wiper strip,
    4 shows a variant of FIG. 3,
    5 shows the ends of a spring rail according to the invention,
    6 shows a variant of FIG. 5,
    7 shows the ends of two spring rails of the type according to FIG. 5 in a parallel arrangement, FIG.
    8 and FIG. 9 variants of FIG. 7,
    10 shows the ends of two spring rails according to FIG. 9 in an indicated mounting device, and FIG. 11 shows a variant of FIG. 9.
    1 shows a wiper blade 10 with a wiper strip 12, a spoiler 14 and two end caps 18. In the middle region of the wiper blade 10, a connection element 16 is provided, which serves for the articulated connection of the wiper blade 10 with a wiper arm not illustrated. The wiper blade 10 is shown in an unloaded state and is concavely curved toward a vehicle window 24. The curvature of the wiper blade 10 is stronger than the curvature of the vehicle window 24, so that a first, drive-side end 20 and a second opposite end 22 of the wiper blade 10 touch the vehicle window 24 with its wiper strip 12.
    The wiper strip 12 (FIG. 2) has a wiper lip 26, which is connected via a tilting web 28 to a head strip 32, wherein a support strip 30 is provided between the wiper lip 26 and the head strip 32. The head strip 32 has two longitudinal grooves 34, which include a web 35 between them. In the longitudinal grooves 34, two spring rails 36 are used as a supporting element, which protrude a little way laterally from the longitudinal grooves 34 and carry both the spoiler 14, the end caps 18 and the connecting element 16. The spring rails 36 are pre-curved and give the wiper blade 10, the shape shown in Fig. 1. They also have a first, drive-side end 20 and a second, opposite end 22nd
    In order to make the contact pressure of the wiper strip 12 to the vehicle window 24 optimal, the spring characteristics of the spring rails 36 are different over their length. This can be done by changing their width, their thickness and their material properties. So that the first end 20 of the spring rail 36 is not interchanged with the second end 22 during assembly, the ends 20, 22 are designed differently. In Fig. 3, two spring rails 40 are shown, which have at the shown, second end 22 at its end faces 58 recesses 54, while at the opposite, first, not shown end 20, the end faces 58 are designed to be continuous and have no recesses.
    In the embodiment according to FIG. 4, two parallel spring rails 38 also have recesses 54 at their second end. In addition, the spring rails 38 have narrowings 52 at one end 22 and narrowings 46 at the other end (FIG. 6). The recesses 54 of FIG. 3 and FIG. 4 are arranged symmetrically to the longitudinal sides 70 of the spring rails 38. The spring rails 38 of FIG. 4 also have on their outer longitudinal sides 70 in the region of their ends 20, 22 recesses 74 for securing the end caps 18th
    FIGS. 5-11 show design possibilities of the ends 20, 22 of various spring rails 36, 38, 40, 42, 44. The embodiment according to FIG. 5 shows at the ends 20, 22 narrowings 48, 46, which are symmetrical to the longitudinal sides 70 of the spring rail -. ne 36 are provided. While the first end 20 has a straight end face 58, the second end 22 has an end face 58 with an asymmetric. see recess 50, which extends approximately from the center of the narrowing 48 to the lateral boundary of the narrowing 48.
    In Fig. 7, two spring rails 36 of the type of Fig. 5 are shown. They are arranged in parallel and, as shown in FIG. 3, are inserted into lateral longitudinal grooves 34 of the wiper strip 12.
    Fig. 8 shows two spring rails 40 in a parallel arrangement, which have no narrowings at their ends 20, 22, but they have at their ends 20, 22 bevels 56, which facilitate assembly. At the end faces of the second ends 22 are recesses 54 similar to the recesses in Fig. 6, while the end faces 58 at the first ends 20 are straight and continuous.
    9 and 11 have no recesses in the end faces 58 of their ends 20, 22. The difference between the first end 20 and the second end 22 in different longitudinal extents 62, 64 of the narrowings 60 at the first end 20 and the narrowing 46 at the second end 22. In the present case, the longitudinal extent 62 of the second end 22 is longer than the longitudinal extent 64 of the narrowing 60 at the first end 20th
    FIG. 10 shows the spring rails 42 according to FIG. 9 in a mounting device 66. The narrowings 46 of the second end 22 and the narrowings 60 of the first end 20 engage in receptacles 68 of the mounting device 66. As the illustration shows, the longer narrowing 46 is sufficient of the second end 22 deeper into the receiving device 66 as the shorter narrowing 60 at the first end 20. Due to the penetration depth of the spring rail 42 in the mounting device 66 or due to the length of the mounting device 66 protruding part of the spring rail 42 can be closed to which end it is in the individual case. In the embodiment of FIG. 11, the longitudinal extent 64 at the first end 20 of the spring rails 44 is equal to zero. Accordingly, the narrowing 60 at the second end 22 of the spring rails 44 can be kept short.
    The same principle applies to the other embodiments. In the embodiments of the spring rails of FIG. 5-8 has the receptacle 68 of the mounting device on the inside of its bottom 72 projections corresponding to the recesses 50, 54 of the spring rails 36, 38, 40. To the amount of the projections, the end faces 58 of the first ends 20 can not be pushed into the mounting device 66.
    权利要求:
    Claims (12)
    [1]
    claims
    1. spring rail (36, 38, 40, 42, 44) for a wiper blade (10) in Flachbalkenbau-wise, which is curved over its length concave to a vehicle window and with a drive-side, first end (20) in a wiping motion an inner circle and the other, second end (22) describes an outer circle, wherein the spring rail (36, 38, 40, 42, 44) has different physical, geometric and / or material properties between its first end (20) and second end (22) and the ends (20, 22) have different shapes for their identification, characterized in that the ends (20, 22) are longitudinally replaceable in an assembly device (66) whose receptacle (68) is in the shape of one end (22), but the shape of the other end (20) can not reach the end of the receptacle (68) of the mounting device (66).
    [2]
    2. spring rail (36, 38,40) according to claim 1, characterized in that the one end (22) on its end face (58) has a recess (50, 54) which leads to a corresponding projection in the receptacle (68). the mounting device (66) fits, while the other end (20) has a straight end face (58).
    [3]
    3. spring rail (36) according to claim 2, characterized in that the recess (50) is arranged asymmetrically to the longitudinal sides (70) of the spring rail (36).
    [4]
    4. spring rail (38, 40) according to claim 2, characterized in that the recess (54) is arranged symmetrically to the longitudinal sides (70) of the spring rails (36).
    [5]
    5. spring rail (42, 44) according to claim 1, characterized in that the two ends (20, 22) have narrowings (46, 60), wherein the longitudinal extension (62) of the narrowing (46) of one end (22) longer is the longitudinal extent (64) of the narrowing (60) of the other end (20).
    [6]
    6. spring rail (42, 44) according to claim 5, characterized in that the difference of the longitudinal extent (62, 64) is at least 1.5 mm.
    [7]
    7. spring rails (44), characterized in that the longitudinal extent (64) of the narrowing (60) of the other end (20) = zero.
    [8]
    8. A method for mounting a spring rail (44) having the features of one of the preceding claims, characterized in that the penetration depth of the spring rail in the receptacle (68) of the mounting device (66) or the length of the receptacle (68) protruding part the Fe derschiëne (36, 38, 40, 42, 44) is detected for identification of the inner or outer end of the spring rail (44).
    [9]
    9. wiper blade (10) in flat bar construction, which has at least one concave over its length to a vehicle window curved spring rail (36, 38,40, 42, 44), with a drive-side, first end (20) in a wiping movement an inner circle and the other, one end (22) describes an outer circle, wherein the spring rail (36, 38,40,42,44) between its first end (20) and a second end (22) different physical, geometric and / or material properties and the ends (20, 22) for their identification have different shapes, characterized in that the ends (2Ö, 22) of the spring rail in the longitudinal direction in a mounting device (66) are alternatively used, the receptacle (68) of the shape of the one End (22) corresponds, but the shape of the other end (20) can not reach the end of the receptacle (68) of the mounting device (66).
    [10]
    10. Wiper blade (10) in flat bar construction, which has at least one concave over its length to a vehicle window curved spring rail (36, 38/40, 42, 44) with a drive-side, first end (20) in a wiping motion an inner circle and the other, one end (22) describes an outer circle, wherein the spring rail (36, 38,40, 42,44) between its first end (20) and a second end (22) different physical, geometric and / or material properties and the ends (20, 22) have different shapes, characterized in that the opposite ends (20, 22) of the spring rail are designed differently so that a particular automatic identification is possible.
    [11]
    11. wiper blade according to claim 10, characterized in that the end face of one end (20, 22) is profiled differently than the end face of the opposite end face.
    [12]
    12. Wiper blade according to one of the preceding claims with at least one spring rail with a profiling of their end faces according to claims 2 to 7.
    类似技术:
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    DE1505405C3|1973-11-22|Wiper blade for vehicles
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    DE2411450C2|1987-07-16|
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    同族专利:
    公开号 | 公开日
    DE102011007070A1|2012-10-11|
    FR2973757B1|2018-09-28|
    FR2973757A1|2012-10-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1505439A1|1965-08-07|1969-08-07|Bosch Gmbh Robert|Wiper blade for vehicle windows|
    EP0007017A1|1978-07-13|1980-01-23|Robert Bosch Gmbh|Automobile-window wiping device|
    DE102007045253A1|2007-09-21|2009-04-02|Volkswagen Ag|Wiper blade for windscreen wiper of motor vehicle, has rubber elastic wiping strip formed in such manner that wiping strip sealingly covers gap at side of wiping lip and comprising flanges in cross-sectional profile between covers and lip|
    DE102007057631A1|2007-11-30|2009-06-04|Volkswagen Ag|Wiper blade for a vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE110070702|2011-04-07|
    DE102011007070A|DE102011007070A1|2011-04-08|2011-04-08|Spring bar for wiper blade in flat beam structure, has ends that are alternatively inserted into mounting device in longitudinal direction, where receptacle of mounting device corresponds to shape of latter end|
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