CN212125069U

CN212125069U - Wiper blade

Info

Publication number: CN212125069U
Application number: CN202020146103.XU
Authority: CN
Inventors: 王艺淋
Original assignee: Bosch Automotive Products Changsha Co Ltd
Current assignee: Bosch Automotive Products Changsha Co Ltd
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2020-12-11
Anticipated expiration: 2030-01-23

Abstract

The present application provides a wiper. The second arm comprises a second pivot part, a main body part, a first fixing part and a joint for connecting the wiper blade, wherein the second pivot part, the main body part, the first fixing part and the joint are integrally formed by stamping metal. The second pivoting part is pivoted with the first pivoting part of the first arm, and the main body part is positioned between the joint and the second pivoting part. The first side wall and the second side wall of the main body part are spaced from each other so as to form a concave part between the first side wall and the second side wall, and the top wall is integrally connected between the first side wall and the second side wall. The spray head is fixed on the second arm. The guide pipe fixed by the first fixing part is connected with the spray head and extends to the first arm through the concave part of the second arm. The wiper is concise in appearance and high in cost performance.

Description

Wiper blade

Technical Field

The present application relates to cleaning devices, and more particularly to wipers for wiping surfaces.

Background

Some vehicles are further provided with a spray head, and when the surface of the glass is dry, washing liquid is sprayed to the surface to be wiped through the spray head, so that the wiping effect is improved. When the spray head is positioned adjacent to the wiper blade, a conduit is required to direct the cleaning solution through the wiper arm. In chinese patent publication No. CN105711551A, a fixing member needs to be added to the wiper arm to fix the catheter, and the number of parts is large, which not only complicates the appearance, but also complicates the structure of the wiper arm and increases the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The present application mainly solves at least one technical problem existing in the prior art, for example, the problem that the structure of the scraping arm is too complex.

In order to solve the above technical problem, the present application provides a wiper, which includes:

a first arm including a first pivot portion and a first connection portion for fixing to a driving shaft;

the second arm comprises a second pivot part, a main body part, a first fixing part and a joint, wherein the second pivot part is formed by integrally stamping metal, the joint is used for connecting a wiper blade, the second pivot part is pivoted with the first pivot part, the main body part is positioned between the joint and the second pivot part, the main body part comprises a first side wall, a second side wall and a top wall, the first side wall and the second side wall are mutually spaced so as to form a concave part between the first side wall and the second side wall, and the top wall is integrally connected between the first side wall and the second side wall;

a nozzle fixed to the second arm; and

a guide pipe connected to the shower head and extending to the first arm through the recess of the second arm, the guide pipe being fixed by the first fixing portion.

In some possible embodiments, the spray head is fixed at the joint, the recess opens toward the surface to be wiped in the operating state of the wiper, and a large part of the conduit between the spray head and the first arm is covered by the recess.

In some possible embodiments, the first fixing portion is located in the recess.

In some possible embodiments, at least two of the first fixing portions are provided on the first side wall, and the second side wall is farther from the second arm than the first side wall in a predetermined resting position.

In some possible embodiments, at least two first notches are provided at the edge of the first sidewall, one first fixing portion is provided in each first notch, the first fixing portion is configured as a sheet-shaped body bent from the first sidewall inward of the concave portion, and the catheter is fixed by the bent sheet-shaped body in a wrapping manner.

In some possible embodiments, the spray head is fixed to the outer side of the second side wall.

In some possible embodiments, the second side wall is provided with a second notch through which the conduit passes.

In some possible embodiments, the wiper includes a nozzle shield secured between the nozzle shield and the second sidewall, the nozzle shield covering the second indentation.

In some possible embodiments, the first arm is formed by casting, and a second fixing portion is integrally formed on the first arm, and the catheter is fixed in the second fixing portion.

In some possible embodiments, a spring is mounted between the first arm and the second arm, which spring is elastically pretensioned and exerts a pulling force on the second arm that urges the second arm towards the surface to be wiped.

According to the technical scheme of this application, the second arm is integratively formed at the main part between joint and the second pivot portion and is formed the concave part, and the pipe extends through the concave part, therefore the second arm simple structure, the outward appearance is succinct moreover.

The first fixing part is integrally formed on the second arm, and the catheter is fixed through the first fixing part without adding other clamping parts, so that the manufacturing cost is low.

Drawings

Specific embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein:

FIG. 1 illustrates a schematic view of a wiper according to an embodiment;

FIG. 2 is a schematic view of the wiper arm of the wiper of FIG. 1 from another perspective, showing a side of the wiper arm facing the windshield in an operational state;

FIG. 3 shows a schematic view of the wiper arm of the wiper of FIG. 1 from the direction of the drive axial joint; and

fig. 4 shows a schematic view of the wiper arm of the wiper of fig. 1 from the joint in the direction of the drive shaft.

Detailed Description

Referring to fig. 1 to 4, a wiper 100 according to an embodiment of the present invention includes a wiper arm (not numbered) and a wiper blade 8 mounted to the wiper arm. The scraper arm comprises a first arm 1 and a second arm 2. The first arm 1 is mounted on a drive shaft 60, and the drive shaft 60 is connected to the motor 6 through a conversion mechanism 62 that converts power. The motor 6 normally outputs a continuous rotational power of a rated torque when energized, the conversion mechanism 62 converts the continuous rotational power output by the motor 6 into a reciprocating rotational power of the drive shaft 60, and the reciprocating drive shaft 60 drives the first arm 1 fixed to the drive shaft 60 to oscillate back and forth.

Between the first arm 1 and the second arm 2 is mounted an elastically pretensioned spring 5, the spring 5 exerting a pulling force on the second arm 2 in a direction driving the second arm 2 towards a surface to be wiped (for example, when the wiper is used for a windscreen of a vehicle, the surface to be wiped is the windscreen surface of the vehicle).

The first arm 1 is formed by casting, and the first arm 1 includes a first connecting portion 11 for fixing to the driving shaft 60 and a first pivot portion 12 for connecting the second arm 2. A second fixing portion 16 for fixing the catheter 4 is integrally formed on the first arm 1.

The second arm 2 includes a second pivot portion 22, a main body portion 20, a first fixing portion 26 and a joint 24 integrally formed by metal punching. The joint 24 serves for connecting the wiper blade 8, and the contour of a wiper blade 8 fixed to the joint 24 is schematically shown in fig. 1 by dashed lines. The second pivot portion 22 pivots the first pivot portion 12, for example, through holes are respectively formed on the second pivot portion 22 and the first pivot portion 12, and a pin shaft penetrates through the through holes to connect the two portions in a relatively rotatable manner. The main body 20 is located between the joint 24 and the second pivot 22. The main body portion 20 includes a first sidewall 201, a second sidewall 202, and a top wall 204. For example, the first side wall 201 and the second side wall 202 are respectively bent and erected toward the same side along the edge of the top wall 204 in the stamping forming process. Thus, the first and

second sidewalls

201 and 202 are spaced apart from each other to form the recess 206 between the first and

second sidewalls

201 and 202, and the top wall 204 is integrally connected between the first and

second sidewalls

201 and 202. For convenience in explaining the relative position of the first side wall 201 and the second side wall 202, the second side wall 202 in this application refers to the side wall of the two side walls that is further away from the second arm 2 in a predetermined resting position. That is, the second side wall 202 is farther from the second arm 2 than the first side wall 201 in a predetermined resting position. When the wiper 100 stops operating, the wiper arm and the second arm 2 are stored at a predetermined rest position. When the wiper 100 is in operation, the second arm 2 moves from the rest position in a direction from the first side wall 201 to the second side wall 202, and then moves back to the rest position after reaching the top dead center. The operation is repeated in such a cycle, and the wiping operation is performed. In the use state, the first side wall 201 is not easily observed, and even if some fixing structures are provided on the first side wall 201, the overall aesthetic appearance of the wiper 100 is not affected.

The spray head 3 is fixed to the second arm 2 at a joint 24. For example, the shower head 3 is fixed to the outer side of the second side wall 202. The conduit 4 is connected to the spray head 3, which spray head 3 comprises one or more nozzles. In the embodiment according to fig. 1, the spray head 3 comprises three nozzles, the direction of the liquid flow emerging from the three nozzles being schematically indicated in fig. 1 by three arrows. The two nozzles are arranged at the far end and used for spraying the cleaning solution to one side far away from the rotating shaft direction of the scraping arm; a nozzle is provided at the proximal end and is configured to spray a cleaning solution toward a side thereof in a direction close to the rotational axis of the wiper arm. When the wiper 100 is actuated, the cleaning liquid sprayed from the spray head 3 can be accurately sprayed to the surface to be wiped in the vicinity of one side in the moving direction of the wiper blade 8, so that it is not necessary to spray the cleaning liquid over a large area, and the amount of the cleaning liquid used can be reduced. The second side wall 202 is provided with a second notch 28, and the conduit 4 passes through the second side wall 202 through the second notch 28, extends from the inside to the outside of the recess 206, and is connected to the external spray head 3. The wiper 100 includes a head shield 32, the head 3 is fixed between the head shield 32 and the second side wall 202, and the head shield 32 slightly larger than the head 3 covers the second notch 28 near the head 3.

At least one first fixing portion 26 is disposed on the first sidewall 201. At least two first notches 260, for example, two or three first notches 260, are disposed at the edge of the first sidewall 201, one first fixing portion 26 is disposed in each first notch 260, the first fixing portion 26 is configured as a sheet-shaped body bent from the first sidewall 201 into the recess 206, and the catheter 4 is fixed by being sandwiched by the bent sheet-shaped body. The first fixing portion 26 is located in the recess 206 after bending. The conduit 4 connecting the spray head 3 extends through the recess 206 of the second arm 2 to the first arm 1. The recess 206 opens toward the surface to be wiped in the operating state of the wiper 100, and a large part of the conduit 4 between the head 3 and the first arm 1 is covered by the recess 206. The guide tube 4 is fixed to the second arm 2 by a first fixing portion 26. The catheter 4 is fixed in the second fixing portion 16 on the first arm 1.

The tab 24 is offset toward the first sidewall 201 side with respect to the main body portion 20. That is, as shown in fig. 2, the main body 20 is elongated in the longitudinal direction Y, and a smooth turn is formed at the junction between the main body 20 and the connector 24, and the connector 24 is disposed at a position displaced to one side of the first sidewall 201 away from the longitudinal direction Y. The conduit 4 fixed inside the first side wall 201 may pass through the second side wall 202 along a relatively straight path.

Notwithstanding the foregoing, the scope of protection of the present application is defined by the claims.

Claims

1. Wiper, characterized in that it comprises:

a first arm (1) comprising an first pivot (12) and a first connection (11) for fixing to a drive shaft (60);

a second arm (2) including a second pivot portion (22) formed by integrally stamping a metal, a main body portion (20), a first fixing portion (26), and a joint (24) for connecting a wiper blade, wherein the second pivot portion (22) is pivoted to the first pivot portion (12), the main body portion (20) is located between the joint (24) and the second pivot portion (22), the main body portion (20) includes a first side wall (201), a second side wall (202), and a top wall (204), the first side wall (201) and the second side wall (202) are spaced apart from each other to form a recess (206) between the first side wall (201) and the second side wall (202), and the top wall (204) is integrally connected between the first side wall (201) and the second side wall (202);

a nozzle (3) fixed to the second arm (2); and

a conduit (4) connected to the spray head (3) and extending through the recess (206) of the second arm (2) to the first arm (1), the conduit (4) being fixed by the first fixing portion (26).

2. A wiper as claimed in claim 1, wherein the spray head (3) is fixed at the joint (24), the recess (206) opens towards the surface to be wiped in the operating state of the wiper, and a major part of the conduit (4) between the spray head (3) and the first arm (1) is covered by the recess (206).

3. A wiper as set forth in claim 1 wherein said first fixing portion (26) is located in said recess (206).

4. A wiper as claimed in claim 3, wherein at least two of said first fixing portions (26) are provided on said first lateral wall (201), said second lateral wall (202) being more distant from said second arm (2) in a predetermined rest position than said first lateral wall (201).

5. A wiper as claimed in claim 4, wherein the edge of the first side wall (201) is provided with at least two first notches (260), one first fixing portion (26) being provided in each first notch (260), the first fixing portion (26) being configured as a sheet-like body bent from the first side wall (201) into the recess (206), the conduit (4) being fixed by the bent sheet-like body being sandwiched.

6. A wiper as claimed in claim 4, wherein the spray head (3) is fixed to the outside of the second side wall (202).

7. A wiper as claimed in claim 1, wherein said second side wall (202) is provided with a second notch (28), said conduit (4) passing through said second notch (28).

8. The wiper according to claim 7, wherein the wiper (100) includes a head shield (32), the head (3) being fixed between the head shield (32) and the second side wall (202), the head shield (32) covering the second notch (28).

9. A wiper as claimed in claim 1, wherein said first arm (1) is formed by casting, said first arm (1) having a second fixing portion (16) integrally formed thereon, said guide tube (4) being fixed in said second fixing portion (16).

10. A wiper as claimed in claim 1, wherein a spring (5) is mounted elastically pretensioned between the first arm (1) and the second arm (2), the spring (5) exerting a pulling force on the second arm (2) urging the second arm (2) in a direction towards the surface to be wiped.