Wiper arm, wiper and vehicle

Abstract

The utility model provides a windshield wiper arm (1) for a windshield wiper, the windshield wiper arm (1) has a longitudinal extension direction (d), and comprises a retainer (10), the retainer (10) is provided with oppositely arranged side walls (11) and a base part (12) connected with the side walls (11), and the side walls (11) and the base part (12) form an open cavity (13) for accommodating a guide pipe of the windshield wiper; wherein a lug (14) extending towards the cavity (13) is formed on the side wall (11), and a hole (15) is formed in the lug (14); the cover plate (20) is arranged opposite to the base part (12) and at least partially closes the cavity (13) of the retainer (10), the cover plate (20) further comprises fixing devices (22) arranged on the cover plate (20), and the lugs (14) are matched with the fixing devices (22) to provide fixation between the cover plate (20) and the retainer (10). The utility model further relates to a wiper and a vehicle.

Description

Technical Field

[0001] This utility model belongs to the field of windshield wipers, specifically relating to a windshield wiper arm, a windshield wiper including the wiper arm, and a vehicle including the windshield wiper. Background Technology

[0002] A vehicle's windshield wipers reciprocate against the windshield during wiping operations to remove rainwater, dust, and other debris. Typically, a windshield wiper consists of an arm mount, a wiper arm, and a wiper blade connected in sequence. One end of the wiper arm is pivotally connected to the arm mount, and the other end is connected to the wiper blade. The wiper arm usually includes a retainer and a cover plate, which are assembled together to secure and conceal the tubing that supplies cleaning fluid to the wiper blade.

[0003] To enhance vehicle aesthetics, more and more wiper arms are being designed as one-piece stamped parts, while the wiper covers are injection-molded plastic components. The dimensional fit between the wiper arm and cover cannot be guaranteed, leading to gaps in the wiper arms and affecting the wiper's appearance. Furthermore, the clips securing the wiper arm and cover are often visible, which also impacts the wiper's appearance.

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

[0005] In response to the problems and needs mentioned above, this utility model proposes a novel wiper arm, which solves the above problems and brings other technical effects by adopting the following technical features.

[0006] The objective is achieved by a wiper arm for a windshield wiper according to an embodiment of the present invention, the wiper arm having a longitudinally extending direction and comprising: a retainer including opposing sidewalls and a base connecting the sidewalls, the sidewalls and the base forming an open cavity for receiving a conduit of the windshield wiper; wherein a tab extending into the cavity is formed on the sidewall, the tab having a hole; a cover plate, the cover plate being arranged opposite to the base and at least partially enclosing the retainer, the cover plate further comprising a fixing device disposed thereon, wherein the tab cooperates with the fixing device to provide fixation between the cover plate and the retainer.

[0007] In this invention, the cover plate engages with the protrusion on the retainer via a fixing device. When assembling the cover plate, simply press it towards the top wall of the retainer. Once in place, both the protrusion and the fixing device are concealed within the cavity formed by the retainer and the cover plate, making them invisible from the outside and effectively improving the appearance of the wiper arm.

[0008] The wiper arm according to this utility model may also have one or more of the following features, individually or in combination.

[0009] According to one embodiment of the present invention, the fixing device includes a base and a buckle, wherein the base is integrally formed with the cover plate, a first end of the buckle is detachably connected to the base, and a second end is configured to pass through a hole in the protrusion.

[0010] According to one embodiment of the present invention, the second end of the buckle has a tree-shaped buckle connector.

[0011] According to one embodiment of the present invention, the first end of the buckle has a first annular structure.

[0012] According to one embodiment of the present invention, a groove is formed on the first annular structure.

[0013] According to one embodiment of the present invention, the base has a second annular structure configured to receive the first end of the snap-fit, wherein a rib is provided on the inner side of the second annular structure, and the rib engages with a groove on the first annular structure.

[0014] According to one embodiment of the present invention, the snap fastener has a through hole in the radial direction, and the groove on the first annular structure on the first end of the snap fastener is misaligned with the through hole.

[0015] According to one embodiment of the present invention, a flange is provided between the first end and the second end of the buckle.

[0016] This utility model also relates to a windshield wiper, which includes the wiper arm as described above.

[0017] This utility model also relates to a vehicle that includes a windshield wiper as described above.

[0018] With the above design, the fixing structure between the wiper arm retainer and the cover plate of this utility model is not visible from the outside of the wiper, which can effectively improve the appearance of the wiper. The ribs and grooves on the fixing structure can prevent the buckle from rotating, ensuring the reliability of the assembly. Its structure is simple, low in cost, and easy to install. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The following drawings are not intentionally drawn to scale to actual size; their focus is on illustrating the main idea of ​​this utility model.

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

[0021] Figure 2 This is a perspective view of a wiper arm according to an embodiment of the present utility model;

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

[0023] Figure 4 This is a schematic diagram of a fixing device according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the buckle of a fixing device according to an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the base of a fixing device according to an embodiment of the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] For ease of description, the accompanying drawings of this utility model have correspondingly simplified or omitted commonly used components in the art, such as external connecting lines and other components unrelated to the description of this utility model. These omitted or simplified components do not affect the understanding of the content of this utility model by those skilled in the art.

[0029] Please see Figure 1 , Figure 1A windshield wiper 100 for a motor vehicle is shown in perspective. The wiper 100 includes an arm mount 2, a wiper arm 1, and a wiper blade 3 connected in sequence. When the wiper 100 is mounted on a vehicle, one end of the arm mount 2 is connected to a drive mechanism (not shown), which may be, for example, a drive motor and / or 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 arm mount 2, and the other end is connected to the wiper blade 3, which rests against the windshield. Driven by the drive mechanism, the arm mount 2 can reciprocate the wiper arm 1 and wiper blade 3 relative to the vehicle's windshield to wipe away rainwater, dust, etc., from the windshield.

[0030] refer to Figure 1 and Figure 2 The wiper arm 1 has an elongated shape, and its longitudinal extension direction is indicated by direction d. Now please refer to Figure 3 , Figure 3 It is the wiper arm 1 along Figure 2 The image shows a cross-sectional view taken along line AA. The wiper arm 1 includes a retainer 10 and a cover 20 assembled together. The retainer 10 has a U-shaped cross-section and includes opposing sidewalls 11 and a base 12 connecting the sidewalls 11. The sidewalls 11 and the base 12 form an open cavity 13 for receiving a conduit for the wiper blade. The cover 20 is arranged opposite to the base 12 and includes a cavity 13 that at least partially closes the retainer 10. Thus, the cover 20 and the retainer 10 define a hollow channel in the wiper arm 1 through which a conduit (not shown) supplying detergent or water to the wiper blade 3 can be guided and concealed.

[0031] A protrusion 14 extending into the cavity 13 is formed on the side arm 11 of the retainer 10, and the protrusion 14 has a hole 15. A fixing device 22 is provided on the cover plate 20. The retainer 10 and the cover plate 20 are tightly assembled together by the mating protrusion 14 and the fixing device 22 to eliminate gaps between them.

[0032] See Figure 3 A tab 14 is disposed on the inner side of the sidewall 11 of the retainer 10. Specifically, the tab 14 extends into the cavity 13. The tab 14 preferably has a generally L-shaped shape, extending from the end of the sidewall 11 toward the base 12 of the retainer 10, and then extending in the transverse direction of the retainer 10. The tab 14 is integrally formed with the retainer 10 for ease of manufacturing and cost reduction. A hole 15 is formed on the tab 14 for the fastening device 22 on the cover plate 20 to pass through, so as to provide a fixation between the cover plate 20 and the retainer 10. The hole 15 preferably has an oblong or elliptical shape.

[0033] like Figure 4As shown, the fixing device 22 includes a base 23 and a buckle 24, wherein the base 23 is integrally formed with the cover plate 20, and the first end of the buckle 24 is detachably connected to the base 23, and the second end is configured to pass through the hole 15 on the protrusion 14. When assembling the cover plate 20 to the retainer 10, the buckle 24 is first installed on the base 23, and then the cover plate 20 is simply pressed toward the top wall 12 of the retainer 10. When the cover plate 20 is in place, the second end of the buckle 24 engages with the hole 15 on the protrusion 14.

[0034] Specifically, the second end of the latch 24 has a tree-shaped latching connector 242. The latching connector 242 engages with the hole 15 on the tab 14. The tree-shaped latching connector 242 can effectively prevent it from coming out of the hole 15 on the tab 14, and can adapt to the position of the tab 14 within a certain range in the extending direction of the sidewall of the retainer 10.

[0035] like Figure 5 As shown, the first end of the snap fastener 24 has a first annular structure 241, and the base 23 has a second annular structure 231, which is configured to receive the annular structure 241 of the first end of the snap fastener 24. The first annular structure 241 of the first end of the snap fastener 24 is inserted into the second annular structure 231 on the base 23 to realize the assembly between the snap fastener 24 and the base 23.

[0036] like Figure 5 As shown, a flange 245 is provided between the first end and the second end of the snap fastener 24. The flange 245 can act as a stop when the first end of the snap fastener 241 is installed onto the base 23 to ensure that the snap fastener 24 is installed in place.

[0037] like Figure 5 and Figure 6 As shown, a groove 243 is formed on the first annular structure 241, and a rib 232 is provided on the inner side of the second annular structure 231. The rib 232 mates with the groove 243 on the first annular structure 241. During assembly, the groove 243 on the first annular structure 241 is aligned with the rib 232 on the second annular structure 231. After assembly, the rib 232 on the second annular structure 231 prevents the latch 24 from rotating, improving the stability of the connection between the cover plate 20 and the retainer 10. Figure 6 Two ribs 232 are arranged opposite each other, and their corresponding slots 243 on the buckle 24 are also arranged opposite each other. In another example, the number and position of ribs 232 and slots 243 can be adjusted as needed, and this application does not impose specific restrictions.

[0038] like Figure 5As shown, the snap-fit ​​connector 242 has a through hole 244 in the radial direction, and the groove 243 on the first annular structure 241 at the first end of the snap-fit ​​24 is misaligned with the through hole 244. Because the snap-fit ​​connector 242 has a through hole 244, if the direction of the through hole 244 is the same as the length direction of the hole 15 on the tab 14, the lack of material on the snap-fit ​​connector 242 will affect the strength of the connection between the snap-fit ​​connector 242 and the tab 14. By misaligning the groove 243 on the first annular structure 241 at the first end of the snap-fit ​​24 with the through hole 244, the aforementioned situation can be avoided, enhancing the strength and stability of the connection between the cover plate 20 and the retainer. Figure 5 The diagram schematically shows the slot 243 and the through hole 244 being arranged at a 90-degree offset. However, those skilled in the art will know that the offset angle can also be other angles, and this application does not impose any specific limitations.

[0039] like Figure 6 As shown, reinforcing ribs are provided on the outer side of the second annular structure 232 to increase its strength. Additionally, notches may be provided on the second annular structure 231 to facilitate the installation of the first annular structure 241.

[0040] With the above design, the fixing structure between the wiper arm retainer and the cover plate of this utility model is not visible from the outside of the wiper, which can effectively improve the appearance of the wiper. The ribs and grooves on the fixing structure can prevent the buckle from rotating, ensuring the reliability of the assembly. Its structure is simple, low in cost, and easy to install.

[0041] This application also includes a windshield wiper comprising the wiper arm described above.

[0042] This utility model also provides a vehicle that includes the windshield wiper 100 described above.

[0043] Certain features, structures, or characteristics in one or more embodiments of this utility model may be appropriately combined.

[0044] The above description is for informational purposes only and should not be construed as limiting the present invention. Although several exemplary embodiments of the present invention have been described, those skilled in the art will readily understand that many modifications can be made to the exemplary embodiments without departing from the novel teachings and advantages of the present invention. Therefore, all such modifications are intended to be included within the scope of the present invention as defined in the claims. It should be understood that the above description is for informational purposes only and should not be construed as limiting the present invention to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the present invention.

Claims

1. A wiper arm (1) for a vehicle wiper, characterized in that, The wiper arm (1) has a longitudinal extending direction (d) and includes: A retainer (10) having opposing sidewalls (11) and a base (12) connecting the sidewalls (11), the sidewalls (11) and the base (12) forming an open cavity (13) for receiving the conduit of the windshield wiper; wherein a tab (14) extending into the cavity (13) is formed on the sidewalls (11), the tab (14) having a hole (15); A cover plate (20) is arranged opposite to the base (12) and at least partially closes the cavity (13) of the retainer (10). The cover plate (20) also includes a fixing device (22) disposed thereon. The tab (14) cooperates with the fixing device (22) 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 fixing device (22) includes a base (23) and a buckle (24), wherein the base (23) is integrally formed with the cover plate (20), the first end of the buckle (24) is detachably connected to the base (23), and the second end is configured to pass through a hole (15) on the tab (14).

3. The wiper arm (1) according to claim 2, characterized in that, The second end of the buckle (24) has a tree-shaped buckle connector (242).

4. The wiper arm (1) according to claim 3, characterized in that, The first end of the buckle (24) has a first annular structure (241).

5. The wiper arm (1) according to claim 4, characterized in that, A groove (243) is formed on the first annular structure (241).

6. The wiper arm (1) according to claim 5, characterized in that, The base (23) has a second annular structure (231) configured to receive the first annular structure (241) of the first end of the buckle (24), wherein a rib (232) is provided on the inner side of the second annular structure (231), and the rib (232) cooperates with the groove (243) on the first annular structure (241).

7. The wiper arm (1) according to claim 5, characterized in that, The snap fastener (242) has a through hole (244) in the radial direction, and the groove (243) on the first annular structure (241) on the first end of the snap fastener (24) is misaligned with the through hole (244).

8. The wiper arm (1) according to claim 2, characterized in that, A flange (245) is provided between the first end and the second end of the buckle (24).

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

10. A vehicle, characterized in that, The vehicle includes a windshield wiper (100) as described in claim 9.

Images