Wiper arm for windscreen wiper of vehicle, windscreen wiper and vehicle

Abstract

The invention provides a windscreen wiper arm for a windscreen wiper of a vehicle, the windscreen wiper and the vehicle, and the windscreen wiper arm comprises an elongated arm body which is provided with a first side wall, a second side wall and a base part connected with the first side wall and the second side wall, wherein the first side wall, the second side wall and the base part form an open cavity for accommodating a guide pipe of the windscreen wiper; and the at least one stop piece is arranged between the first side wall and the second side wall in the direction transverse to the extension direction of the arm body and is arranged on the other side of the guide pipe relative to the base part.

Description

Technical Field

[0001] The present disclosure relates to a wiper arm for a wiper of a vehicle, a wiper including the wiper arm, and a vehicle including the wiper. Background Art

[0002] The wiper is one of the essential parts of a vehicle, and is mainly used to clear the rain, snow or dust falling on the window glass under adverse weather conditions (such as rain, snow, and sandstorms), so that the driver's field of vision will not be obstructed, ensuring driving safety. Generally speaking, the wiper includes a wiper arm seat connected to a driving mechanism such as a motor, a wiper arm connected to the wiper arm seat and used to hold the wiper blade, and a nozzle for spraying a cleaning fluid toward the windshield, wherein the wiper arm generally includes an arm body, a cover connected to the arm body to form a cavity, and a conduit disposed in the cavity and used to transport the cleaning fluid, and the nozzle is mounted on a nozzle holder, and the nozzle holder is generally disposed on the arm body.

[0003] The commonly used cover usually completely covers the arm body to form a substantially closed cavity for accommodating the conduit, which can not only hide the conduit but also prevent the conduit from escaping from the cavity during the use of the wiper or the reciprocating movement of the wiper arm and being exposed outside the wiper and interfering with the windshield. Therefore, such a cover is usually called a full-cover type cover. However, such a cover brings high cost and makes installation complicated.

[0004] In order to avoid using a full-coverage cover, some known solutions use a mechanical structure cast together with the arm body to fix the catheter. However, the manufacturing cost of this solution is still relatively high. Summary of the invention

[0005] Therefore, an object of the present disclosure is to provide a wiper arm for a wiper of a vehicle, a wiper including the wiper arm, and a vehicle including the wiper arm, wherein the wiper arm has low manufacturing cost, simple structure, and convenient installation.

[0006] The above object is achieved by the wiper arm, wiper and vehicle described below.

[0007] The present disclosure provides a wiper arm for a vehicle wiper, the wiper arm comprising: an elongated arm body having a first side wall, a second side wall and a base connecting the first side wall and the second side wall, wherein the first side wall, the second side wall and the base form an open cavity for accommodating a conduit of the wiper; and at least one stopper, which is arranged between the first side wall and the second side wall transversely to the extension direction of the arm body and on the other side of the conduit relative to the base.

[0008] In one embodiment, the at least one stopper comprises a first stopper disposed on a spring connection member on the arm body.

[0009] In one embodiment, the spring connector is disposed on the first side wall, a first end of a main body of the first stopper is fixed to the spring connector, and a second end is pressed against an inner surface of the second side wall.

[0010] In one embodiment, the first stopper further includes an extension portion extending transversely to the main body toward the interior of the cavity, and the extension portion prevents the catheter from moving transversely to the extension direction of the arm body.

[0011] In one embodiment, a plurality of elastic protrusions are provided on a surface of the second end of the first stopper that contacts the inner surface of the second side wall.

[0012] In one embodiment, a protrusion protruding toward the second side wall is disposed on the second end of the first stopper, and a recess cooperating with the protrusion is disposed on the second side wall.

[0013] In one embodiment, a slit hole is provided on the spring connector, the spring of the wiper is connected to one end of the slit hole, and the first end of the first stopper is fixed to the other end of the slit hole by a threaded fastener.

[0014] In one embodiment, a slit hole is provided on the spring connector, the spring of the wiper is connected to one end of the slit hole, the first end of the first stopper is fixed to the other end of the slit hole by a deformable connector integrally formed therewith, and the deformable connector is provided with a hollow portion extending along the installation direction of the first stopper.

[0015] In one embodiment, the at least one stopper comprises a second stopper having a U-shape and two stopper side walls of the second stopper are respectively fixed to the first side wall and the second side wall.

[0016] In one embodiment, the second stopper is disposed close to the wiper blade of the wiper.

[0017] In one embodiment, two stop side walls of the second stop member are respectively engaged with the first side wall and the second side wall.

[0018] The present disclosure also provides a wiper blade for a vehicle, the wiper blade comprising the wiper arm as described above.

[0019] The present disclosure also provides a vehicle, comprising the wiper as described above.

[0020] The advantages of the embodiments of the present disclosure are: there is no need to use a cover, especially a full-covering cover, and the conduit can be prevented from falling out by a simple stopper; the stopper is fixed by using the connector on the wiper arm for installing the spring, and there is no need to design a new mechanical connector on the arm body; the conduit can be more stably confined in the cavity of the wiper arm by the T-shaped stopper; the stopper can be stably installed by the interference fit between the stopper and the side wall of the arm body; the installation method of the stopper is simple; and the U-shaped stopper additionally provided for the longer wiper arm can more effectively prevent the conduit from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The advantages and purposes of the present disclosure can be better understood from the preferred embodiments of the present disclosure described in detail below in conjunction with the accompanying drawings. In order to better show the relationship between the various components in the accompanying drawings, the accompanying drawings are not drawn to scale. In the accompanying drawings:

[0022] Figure 1 A schematic diagram of a wiper arm according to an embodiment of the present disclosure is shown;

[0023] Figure 2 A partial schematic diagram of a wiper arm according to an embodiment of the present disclosure is shown;

[0024] Figure 3 A partial schematic diagram of a wiper arm according to an embodiment of the present disclosure is shown;

[0025] Figure 4 A schematic diagram showing a first stopper of a wiper arm according to an embodiment of the present disclosure is shown;

[0026] Figure 5 A schematic diagram showing a first stopper of a wiper arm according to another embodiment of the present disclosure; and

[0027] Figure 6 A schematic diagram of a second stopper of a wiper arm according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described in combination with the drawings of the specific embodiments of the present disclosure. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0029] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate a quantity limitation. Words such as "include", "comprise" or "have" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to the physical or mechanical connections or connections shown in the drawings, but may include connections or connections equivalent thereto, whether direct or indirect. "Top", "bottom", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Below, see Figures 1 to 6 Various embodiments of the present disclosure are described in detail.

[0031] Figure 1 The wiper arm of a wiper according to an embodiment of the present disclosure is generally shown as a schematic diagram of a wiper arm. The wiper is generally placed on the windshield of a vehicle (e.g., a motor vehicle, an electric vehicle, or a hybrid vehicle, etc.). The wiper comprises a wiper blade, a wiper arm 20 for holding the wiper blade, a conduit 6 for conveying a cleaning fluid, and a nozzle (which is arranged at Figure 1 ), and a wiper arm seat 22 connected to a driving mechanism (e.g., a motor). The wiper arm 20 is connected to the wiper arm seat 21, for example, via a connecting shaft 23. Driven by the driving mechanism, the wiper arm 20 can reciprocate between the back-scraping position (i.e., the maximum wiping position) and the inner-scraping position. In addition, the wiper also includes a spring 14, which is disposed in the wiper arm 20 and is used to bias the wiper arm 20 and thus the wiper blade toward the windshield.

[0032] like Figure 1 and 2 As shown in FIG. 1 , the wiper arm of the present disclosure comprises an elongated arm body 1 and at least one stopper. Figure 2 The arrow in the figure schematically shows the extension direction D of the arm body 1, but it should be noted that the arm body 1 does not actually extend in a straight line. The arm body 1 may be made of metal, and a nozzle holder 21 for holding the nozzle may be provided thereon. Figure 3As shown, the arm body 1 has a first side wall 2, a second side wall 3 and a base 4 connecting the first side wall 2 and the second side wall 3. The first side wall 2, the second side wall 3 and the base 4 form an open cavity 5 for accommodating a conduit 6 of the wiper. The number of conduits 6 can be two, respectively for conveying water and detergent. The cavity 5 is open toward the windshield, so the conduit and other components are hidden from the observer.

[0033] At least one stopper may include a first stopper 7 and / or a second stopper 9. These stops are disposed between the first side wall 2 and the second side wall 3 transversely to the extension direction D of the arm body 1 and are disposed on the other side of the conduit 6 relative to the base 4. In other words, the stopper and the base 4 are respectively disposed on both sides of the conduit 6 to prevent the conduit 6 from escaping from the open cavity 5, especially during or after the reciprocating motion of the wiper. When the wiper arm 20 is shorter, only the first stopper 7 can be used. When the wiper arm 20 is longer, both the first stopper 7 and the second stopper 9 can be used. In this way, the present disclosure does not require the use of a cover, especially a full-coverage cover, which reduces costs and simplifies installation.

[0034] like Figure 1 and 2 As shown, the first stopper 7 is arranged on the spring connector 8 on the arm body 1, so it is close to the wiper arm seat 22. One end of the spring 14 of the wiper is connected to the spring connector 8, and the other end is connected to the end of the wiper arm 20 close to the wiper arm seat 22 or the end of the wiper arm seat 22 close to the wiper arm 20, and is in a tensioned state to make the wiper arm and the wiper blade close to the windshield. By using the spring connector 8 to install the stopper, the present disclosure does not need to design a new mechanical connector on the arm body, which saves design and processing costs and simplifies installation.

[0035] For example, the spring connector 8 is disposed on the first side wall 2. The spring connector 8 is integrally formed with the arm body 1, extends from the edge of the first side wall 2 of the arm body 1 into the cavity and has a bent form, such as Figure 3 As shown. Figure 2 and 4 As shown, the first end 101 of the main body 10 of the first stopper 7 is fixed to the spring connector 8 , and the second end 102 is pressed against the inner surface of the second side wall 3 .

[0036] In addition, the first stopper 7 further includes an extension portion 11 extending transversely to the main body 10 of the first stopper 7 toward the inside of the cavity 5, and the extension portion 11 prevents the catheter 6 from moving transversely to the extension direction D of the arm body 1. Figure 2As shown, the substantially T-shaped first stopper 7 partially limits the conduit 6 in the space formed by the main body 10 and the extension 11 and the arm body 1, thereby preventing the conduit 6 from escaping from the cavity 5. This T-shaped structure can better limit the conduit in the cavity of the wiper arm. For example, the size or length of the extension 11 is determined by the size of the conduit.

[0037] like Figure 4 As shown, a plurality of elastic protrusions 12 are provided on the surface of the second end 102 of the first stopper 7 that contacts the inner surface of the second side wall 3. The plurality of elastic protrusions 12 can be deformed by force when contacting the inner surface of the second side wall 3, and have an interference fit with the inner surface. For example, an additional extension portion extending transversely to (for example, perpendicular to) the main body 10 is provided on the second end 102 of the first stopper 7, and the elastic protrusions 12 are formed on the surface of the additional extension portion. For example, the plurality of elastic protrusions 12 can be arranged in a plurality of rows. For example, the elastic protrusions 12 can be integrally formed with the main body 10 and the extension portion 11 of the first stopper 7. Through the interference fit, the first stopper 7 can be firmly pressed against the inner surface of the second side wall 3, thereby achieving stable installation of the first stopper 7.

[0038] In other examples, a protrusion protruding toward the second side wall 3 is provided on the second end 102 of the first stopper 7, and a recess matched with the protrusion is provided on the second side wall 3. Specifically, the recess can be a groove on the inner surface of the second side wall 3 or a hole on the second side wall 3.

[0039] like Figure 3 As shown, the spring connector 8 is provided with a slit hole 13, which is similar to a conventional wiper, and the slit hole 13 extends along the extension direction D of the arm body 1. The spring 14 of the wiper is connected to one end of the slit hole 13, and the first end 101 of the first stopper 7 is fixed to the other end of the slit hole by a threaded fastener 15. Figure 4 The threaded fastener 15 is shown in the figure, which may be a bolt. A mounting hole corresponding to the threaded fastener 15 is provided on the first end 101 of the first stopper 7. The mounting method disclosed in the present invention is simple and low in cost.

[0040] In other examples, the spring 14 of the wiper is connected to one end of the slit hole 13 on the spring connector 8, and the first end 101 of the first stopper 7 is fixed to the other end of the slit hole through a deformable connector 16 integrally formed therewith. Figure 5As shown. The deformable connecting member 16 is provided with a hollow portion 19 extending along the installation direction of the first stopper 7. The installation direction of the first stopper 7 may also be parallel to the extension direction of the extension portion 11 of the first stopper 7. The deformable connecting member 16 may have a tapered form or a conical form. In addition, the deformable connecting member 16 may have a groove, and the edge of the slit hole is stuck in the groove after passing through the slit hole 13. By providing the hollow portion 19, the deformable connecting member 16, which is slightly larger than the slit hole 13, is deformed inwardly when subjected to force and passes through the slit hole 13.

[0041] See again Figure 1 and 2 When the length of the arm body 1 is long, in addition to the first stopper 7, a second stopper 9 may be provided at a position close to the wiper blade of the wiper. For example, the second stopper 9 has a U-shape. Figure 6 As shown, the two stopper side walls 17, 18 of the second stopper 9 are respectively fixed to the first side wall 2 and the second side wall 3 of the arm body 1. The two stopper side walls 17, 18 of the second stopper 9 are respectively engaged with the first side wall 2 and the second side wall 3. For example, the two stopper side walls 17, 18 of the second stopper 9 are provided with grooves or holes, and the first side wall 2 and the second side wall 3 of the arm body 1 are provided with protrusions that match them.

[0042] The first stopper 7 and the second stopper 9 can be made of plastic. In addition, the elastic protrusion 12 can also be made of plastic.

[0043] Through the above design, the wiper arm disclosed in the present invention does not require a full-covering cover, has a simple structure, low cost, and is easy to install, and can effectively prevent the guide tube of the wiper from falling out.

[0044] The wiper blade for a vehicle disclosed in the present invention comprises the wiper arm as described above, and has the advantages possessed by the wiper arm.

[0045] The vehicle of the present disclosure includes the wiper blade as described above, and also has the advantages of the wiper arm.

[0046] In addition, the technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the invention to achieve the purpose of the present disclosure.

Claims

1. A wiper arm for a vehicle wiper, characterized in that: The wiper arm (20) comprises: An elongated arm body (1) having a first side wall (2), a second side wall (3) and a base (4) connecting the first side wall (2) and the second side wall (3), wherein the first side wall (2), the second side wall (3) and the base (4) form an open cavity (5) for accommodating a guide tube (6) of the wiper; and At least one stopper is arranged between the first side wall (2) and the second side wall (3) transversely to the extension direction (D) of the arm body (1) and is arranged on the other side of the conduit (6) relative to the base (4).

2. The wiper arm according to claim 1, characterized in that: The at least one stopper comprises a first stopper (7), which is arranged on a spring connection member (8) on the arm body (1).

3. The wiper arm according to claim 2, characterized in that: The spring connector (8) is arranged on the first side wall (2); the first end (101) of the main body (10) of the first stopper (7) is fixed on the spring connector (8), and the second end (102) is pressed against the inner surface of the second side wall (3).

4. The wiper arm according to claim 3, characterized in that: The first stopper (7) further comprises an extension portion (11) extending transversely to the main body (10) toward the inside of the cavity (5), wherein the extension portion prevents the catheter (6) from moving transversely to the extension direction of the arm body (1).

5. The wiper arm according to claim 3, characterized in that: A plurality of elastic protrusions (12) are provided on the surface of the second end (102) of the first stopper (7) that contacts the inner surface of the second side wall (3).

6. The wiper arm according to claim 3, characterized in that: The second end (102) of the first stopper (7) is provided with a protrusion protruding toward the second side wall (3), and the second side wall (3) is provided with a recessed portion cooperating with the protrusion.

7. The wiper arm according to claim 3, characterized in that: The spring connector (8) is provided with a slit hole (13), the wiper spring (14) is connected to one end of the slit hole, and the first end (101) of the first stopper (7) is fixed to the other end of the slit hole by a threaded fastener (15).

8. The wiper arm according to claim 3, characterized in that: The spring connector (8) is provided with a slit hole (13), the wiper spring (14) is connected to one end of the slit hole, the first end (101) of the first stopper (7) is fixed to the other end of the slit hole via a deformable connector (16) integrally formed therewith, and the deformable connector (16) is provided with a hollow portion (19) extending along the installation direction of the first stopper (7).

9. The wiper arm according to claim 1, characterized in that: The at least one stopper comprises a second stopper (9), the second stopper has a U-shape and two stopper side walls (17, 18) of the second stopper are respectively fixed to the first side wall (2) and the second side wall (3).

10. The wiper arm according to claim 9, characterized in that: The second stopper (9) is arranged close to the wiper blade of the wiper.

11. The wiper arm according to claim 9, characterized in that: The two stop side walls (17, 18) of the second stop member (9) are respectively engaged with the first side wall (2) and the second side wall (3).

12. A windshield wiper for a vehicle, characterized in that: The wiper comprises a wiper arm (20) according to any one of claims 1 to 11.

13. A vehicle, characterized in that: The vehicle comprises the wiper blade as claimed in claim 12.

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