Wiper arm, wiper and vehicle

Abstract

The present disclosure provides a wiper arm (1) for a wiper, the wiper arm (1) having a longitudinal extension direction (d) and comprising: a retainer (10) having oppositely arranged side walls (11) and a base (12) connecting the side walls (11), the side walls (11) and the base (12) forming an open cavity (13) for receiving a conduit of the wiper; wherein a first matching part (14) is arranged on the side wall (11); the cover plate (20) is arranged opposite to the base part (12) and at least partially seals the cavity (13) of the retainer (10), the cover plate (20) further comprises a second matching part (22) arranged on the cover plate (20), and the first matching part (14) is matched with the second matching part (22) to provide fixation between the cover plate (20) and the retainer (10). The utility model further relates to a wiper comprising the wiper arm and a vehicle comprising the wiper.

Description

Technical Field

[0001] The present disclosure belongs to the field of windshield wipers, and particularly relates to a wiper arm, a windshield wiper including the wiper arm, and a vehicle including the windshield wiper. Background Art

[0002] The windshield wiper of a vehicle reciprocates against the windshield of the vehicle during a wiping operation to scrape off rainwater, dust, etc. on the windshield. Generally, the windshield wiper includes a base seat, a wiper arm, and a wiper blade connected in sequence, wherein one end of the wiper arm is pivotally connected to the base seat, and the other end of the wiper arm is connected to the wiper blade. The wiper arm generally includes a retainer and a cover plate, which are assembled together to fix and hide a pipeline for supplying a cleaning agent to the wiper blade.

[0003] In order to improve the appearance of the vehicle, more and more retainers adopt integrally stamped parts with a shaped design, while the cover plate is an injection-molded plastic part. The dimensional matching degree between the retainer and the cover plate cannot be guaranteed, resulting in gaps in the wiper arm, which affects the aesthetics of the windshield wiper. In addition, the snap fasteners for fixing the retainer and the cover plate are usually also visible. This also affects the appearance of the windshield wiper.

[0004] Therefore, there is a need for a wiper arm that can avoid the above problems and is easy to manufacture and assemble. Summary of the Utility Model

[0005] In view of the problems and needs mentioned above, the present disclosure provides a novel wiper arm, which solves the above problems and brings other technical effects due to the following technical features.

[0006] The above object is achieved by a wiper arm for a windshield wiper according to an embodiment of the present disclosure. The wiper arm has a longitudinally extending direction and includes: a retainer including opposite side walls and a base connecting the side walls, the side walls and the base forming an open cavity for accommodating a conduit of the windshield wiper; wherein a first mating portion is provided on the side wall; a cover plate, the cover plate is disposed opposite to the base and at least partially closes the retainer, and the cover plate further includes a second mating portion provided thereon, wherein the first mating portion and the second mating portion cooperate to provide fixation between the cover plate and the retainer.

[0007] In the present disclosure, the cover plate cooperates with the first mating portion on the side arm of the retainer through the second mating portion. When assembling the cover plate, only need to press the cover plate towards the top wall of the retainer. After the cover plate is in place, both the first mating portion and the second mating portion are hidden in the cavity formed by the retainer and the cover plate and are not visible from the outside, effectively improving the appearance of the wiper arm.

[0008] The wiper arm according to the present disclosure may also individually or combinatorially have one or more of the following features.

[0009] According to an embodiment of the present disclosure, the first mating portion is a rib formed on the inner side of the side wall, which is configured to extend along the extending direction of the side wall.

[0010] According to an embodiment of the present disclosure, the second mating portion includes an elastic buckle, the elastic buckle extends from the cover plate towards the base of the retainer, and the end of the elastic buckle mates with the first mating portion.

[0011] According to an embodiment of the present disclosure, the end of the elastic buckle has a engaging structure protruding towards the side of the first mating portion with which it mates, and the engaging structure abuts against the first mating portion.

[0012] According to an embodiment of the present disclosure, in the assembled state, the engaging structure of the second mating portion is closer to the edge of the cover plate than the end of the first mating portion.

[0013] According to an embodiment of the present disclosure, adjacent second mating portions are arranged in a staggered manner in the extending direction of the cover plate.

[0014] According to an embodiment of the present disclosure, the elastic buckle and the cover plate are integrally formed.

[0015] According to an embodiment of the present disclosure, the first mating portion is formed by folding the side wall of the retainer.

[0016] The present disclosure also relates to a windshield wiper, which includes the wiper arm as described above.

[0017] The present disclosure also relates to a vehicle, which includes the windshield wiper as described above.

[0018] Through the above design, the fixing structure between the retainer and the cover plate of the wiper arm of the present disclosure can be made completely invisible, which can effectively improve the appearance of the windshield wiper, and its structure is simple, the cost is low, and the installation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. The following drawings are not deliberately drawn to scale in actual size, and the focus is on showing the gist of the present disclosure.

[0020] Figure 1 is a schematic diagram of a windshield wiper according to an embodiment of the present disclosure;

[0021] Figure 2Is a perspective view of a wiper arm according to an embodiment of the present disclosure;

[0022] Figure 3 Is a cross-sectional view of a wiper arm according to an embodiment of the present disclosure;

[0023] Figure 4 Is a schematic diagram of a retainer according to an embodiment of the present disclosure;

[0024] Figure 5 Is a schematic diagram of a cover plate according to an embodiment of the present disclosure. Detailed Description of the Embodiment

[0025] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure.

[0026] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present disclosure pertains. The words such as "a", "an", or "the" used in the specification and claims of the present patent application do not denote a limitation in quantity, but rather mean that there is at least one. Words such as "comprising" or "including" mean that the elements or items appearing before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] For the sake of convenience of description, the accompanying drawings of the present disclosure correspondingly simplify or omit commonly used components in the art, such as other components irrelevant to the description of the present disclosure, such as external connection lines. These omitted or simplified components do not affect those skilled in the art's understanding of the content of the present disclosure.

[0028] Please refer to Figure 1 , Figure 1 , which shows a wiper 100 for a motor vehicle in a perspective view. The wiper 100 includes a base 2, a wiper arm 1, and a wiper blade 3 that are connected in sequence. When the wiper 100 is installed on a vehicle, one end of the base 2 is connected to a drive mechanism (not shown), which may be, for example, a drive motor and / or a linkage mechanism installed in the vehicle, and the other end is connected to the wiper arm 1. One end of the wiper arm 1 is connected to the base 2, and the other end is connected to the wiper blade 3 that abuts against the windshield.

[0029] The base 2 can drive the wiper arm 1 and the wiper blade 3 to reciprocate relative to the windshield of the vehicle under the drive of the drive mechanism to scrape off rainwater, dust, etc. on the windshield.

[0030] Refer toFigure 1 and Figure 2 , the wiper arm 1 has an elongated shape, and its longitudinal extension direction is identified as direction d. Now refer to Figure 3 , Figure 3 which Figure 2 is a cross-sectional view of the wiper arm 1 taken along line A-A in

[0031] The retainer 10 and the cover plate 20 are tightly assembled together through a first mating portion 14 and a second mating portion 22 that cooperate with each other to eliminate the gap therebetween.

[0032] Refer to Figure 3 , the first mating portion 14 of the retainer 10 is provided on the inner side of the side wall 11. Specifically, the first mating portion 14 is a rib formed on the inner side of the side wall 11. Specifically, the rib extends from the end of the side wall 11 in the cavity towards the base 12 and the opposite side wall 11 of the retainer 10. The rib has a certain inclination relative to the side wall 11 to facilitate cooperation with the second mating portion 22. Due to the inclined setting of the rib, the second mating portion 22 can be provided at a position at a certain distance from the edge of the cover plate 20, so that the fixing device of the retainer 10 and the cover plate 20 is more easily made invisible.

[0033] Wherein, the rib is configured to extend along the extension direction of the side wall 11. Such a setting of the first mating portion 14 can increase the flexibility of the position design of the second mating portion 22.

[0034] As Figure 3 and 5 shown, the second mating portion 22 of the cover plate 20 includes an elastic buckle, and the elastic buckle extends from the cover plate 20 towards the base 12 of the retainer 10, and the end 24 of the elastic buckle cooperates with the first mating portion 14. When assembling the cover plate 20 to the retainer 10, just press the cover plate 20 towards the top wall 12 of the retainer 10. When the cover plate 20 is in place, that is, when the edge 22 of the main body portion 21 contacts the side wall 11 of the retainer 10, the end 24 of the elastic buckle cooperates with the first mating portion 14.

[0035] The end portion 24 of the elastic buckle has an engaging structure 25 that protrudes toward the first engaging portion 14 that mates with it, and the engaging structure 25 abuts against the first engaging portion 14. Such an arrangement can ensure the engagement between the first engaging portion 14 and the second engaging portion 22, prevent the cover plate 20 from disengaging from the assembled state, and ensure the assembly effect and reliability.

[0036] In the assembled state, the engaging structure 25 of the second engaging portion 22 is closer to the edge of the cover plate 20 than the end portion of the first engaging portion 14. That is, the engaging structure 25 of the second engaging portion 22 is formed inside the cover plate 20. After assembly, the first engaging portion 14 and the second engaging portion 22 are located inside the channel formed by the retaining arm 10 and the cover plate 20 and are not visible when viewed from the outside of the wiper. This can effectively improve the appearance of the wiper. Since the first engaging portion 14 and the second engaging portion 22 are not visible, their specific arrangements can be adjusted as needed, increasing the design flexibility.

[0037] In addition, an interference fit exists between the cover plate 20 and the retainer 10. With this structure, during assembly, the opposing side walls 11 of the retainer 10 squeeze the elastic buckle inward. After the cover plate 20 is in place, the first engaging portion 14 and the second engaging portion 22 abut against each other, increasing the assembly firmness between the retainer 10 and the cover plate 20.

[0038] As Figure 5 shown, adjacent second engaging portions 22 are arranged in a staggered manner in the extending direction of the cover plate 20. Such an arrangement can reduce the number of elastic buckles of the second engaging portion 22 and save material costs. Of course, the second engaging portions 22 can also be arranged in pairs, that is, arranged in parallel in the extending direction of the cover plate 20. The present application does not make specific limitations.

[0039] In one example, the elastic buckle and the cover plate 20 are integrally formed. The elastic buckle and the cover plate 20 can be manufactured together by an injection molding method, reducing the manufacturing and assembly process steps and costs.

[0040] In one example, the first engaging portion 14 is formed by folding the side wall 11 of the retainer 10. When manufacturing the wiper arm 1, the first engaging portion 14 on the side wall 11 of the retainer 10 can be formed on the metal plate before performing the stamping operation. After the metal plate is stamped into the U-shaped retainer 10, the additional portion on its side wall is folded to obtain the rib of the first engaging portion 14. Of course, the first engaging portion 14 can also be formed in any other suitable manner, and the present application does not make specific limitations. In another example, the first engaging portion 14 can also be in a discontinuous form, that is, the first engaging portion 14 only exists at the position where it mates with the second engaging portion 22.

[0041] With the above design, the fixing structure between the retainer and the cover plate of the wiper arm of the present disclosure can be made completely invisible, which can effectively improve the appearance of the wiper, and its structure is simple, the cost is low, and the installation is convenient.

[0042] The present disclosure also provides a vehicle including the wiper 100 described above.

[0043] Certain features, structures or characteristics in one or more embodiments of the present disclosure can be appropriately combined.

[0044] The above is the description of the present disclosure and should not be regarded as a limitation thereof. Although several exemplary embodiments of the present disclosure have been described, those skilled in the art will easily understand that many modifications can be made to the exemplary embodiments without departing from the novel teachings and advantages of the present disclosure. Therefore, all such modifications are intended to be included within the scope of the present disclosure defined by the claims. It should be understood that the above is the description of the present disclosure, and the present disclosure should not be considered limited to the specific embodiments disclosed, and the modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the present disclosure.

Claims

1. A wiper arm (1) for a vehicle wiper, characterized in that, The wiper arm (1) has a longitudinally extending direction (d) and comprises: A retainer (10) having oppositely arranged side walls (11) and a base (12) connecting the side walls (11), the side walls (11) and the base (12) forming an open cavity (13) for receiving a conduit of the wiper; wherein a first mating portion (14) is provided on the side wall (11); A cover plate (20), the cover plate (20) being oppositely arranged relative to the base (12) and at least partially closing the cavity (13) of the retainer (10), the cover plate (20) further comprising a second mating portion (22) provided thereon, Wherein, the first mating portion (14) and the second mating portion (22) cooperate to provide fixation between the cover plate (20) and the retainer (10).

2. The wiper arm (1) according to claim 1, characterized in that, The first mating portion (14) is a rib formed on the inner side of the side wall (11), which is configured to extend along the extending direction of the side wall (11).

3. The wiper arm (1) according to claim 2, characterized in that, The second mating portion (22) includes an elastic snap, the elastic snap extending from the cover plate (20) towards the base (12) of the retainer (10), and an end portion (24) of the elastic snap cooperating with the first mating portion (14).

4. The wiper arm (1) according to claim 3, characterized in that, The end portion (24) of the elastic snap has an engaging structure (25) protruding towards the side of the first mating portion (14) with which it cooperates, and the engaging structure (25) abuts against the first mating portion (14).

5. The wiper arm (1) according to claim 4, characterized in that, In the assembled state, the engaging structure (25) of the second mating portion (22) is closer to the edge of the cover plate (20) than the end portion of the first mating portion (14).

6. The wiper arm (1) according to claim 5, characterized in that, Adjacent second mating portions (22) are arranged in a staggered manner in the extending direction of the cover plate (20).

7. The wiper arm (1) according to claim 3, characterized in that, The elastic snap and the cover plate (20) are formed as one body.

8. The wiper arm (1) according to any one of claims 1-7, characterized in that, The first mating portion (14) is formed by folding the side wall (11) of the retainer (10).

9. A windshield wiper (100), characterized in that, The wiper includes the wiper arm (1) according to any one of claims 1 to 8.

10. A vehicle, characterized in that, The vehicle includes the wiper (100) according to claim 9.

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