CN210174816U

CN210174816U - Wiper assembly

Info

Publication number: CN210174816U
Application number: CN201920241538.XU
Authority: CN
Inventors: Chao Chen; 陈超
Original assignee: Bosch Automotive Products Changsha Co Ltd
Current assignee: Bosch Automotive Products Changsha Co Ltd
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2020-03-24
Anticipated expiration: 2029-02-26

Abstract

The present application provides a wiper assembly. The scraping arm comprises an accommodating part and a matching part which are integrally arranged, and the accommodating part is provided with a downward opening. The shaft connecting piece is fixed on the pivot and is arranged in the accommodating part from the opening, the pivot can output the movement rotating around a first axis, the scraping arm can rotate around a second axis relative to the shaft connecting piece, the first axis is perpendicular to the second axis, an elastic component which is elastically pre-deformed is arranged between the scraping arm and the shaft connecting piece, and the elastic component applies force to the scraping arm to enable the matching part to move downwards. The shaft connecting piece is protected by the accommodating part, and the scraping arm is durable and simple in appearance.

Description

Wiper assembly

Technical Field

The present application relates to cleaning devices for wiping slippery surfaces, and more particularly to wiper assemblies for wiping windshields.

Background

A wiper arm of a wiper for wiping a windshield includes a first section and a second section pivotally connected to each other, the first section being fixed to a pivot shaft, and the wiper blade being mounted at an end of the second section. A pretensioned spring is arranged between the first section and the second section, so that the wiper arm exerts an elastic pressure on the wiper blade, so that the wiper blade can wipe against the glass surface. However, such a two-stage wiper arm is complicated in structure and is not aesthetically pleasing.

Therefore, there is a need to overcome the technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The present application mainly solves at least one technical problem existing in the prior art.

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

the wiper arm comprises an accommodating part and a matching part which are integrally arranged, wherein the accommodating part is provided with a downward opening, the matching part is provided with an interface for mounting the wiper blade, and the interface is used for mounting the wiper blade below the wiper arm; and

and a shaft connector fixed to a pivot shaft and installed in the housing portion from the opening, the pivot shaft being capable of outputting a rotational movement about a first axis, the wiper arm being rotatable about a second axis with respect to the shaft connector, the first axis being perpendicular to the second axis, an elastic member elastically pre-deformed being installed between the wiper arm and the shaft connector, the elastic member applying a force to the wiper arm to move the mating portion downward.

According to the technical scheme of this application, the coupling member is fixed in the pivot and from the opening install in accommodating part, therefore, the coupling member obtains the protection of accommodating part, scrapes arm durable, and the outward appearance is succinct.

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 assembly according to one embodiment;

FIG. 2 illustrates a close-up view of a portion of the pivot connection of the wiper assembly shown in FIG. 1;

FIG. 3 shows a schematic view of another angle of the wiper arm of FIG. 1; and

fig. 4 shows a schematic view of another angle of the shaft coupling shown in fig. 1.

Detailed Description

Referring to fig. 1 to 2, a wiper assembly 100 according to an embodiment of the present application includes an electric actuator 4, the electric actuator 4 being operative to output a reciprocating rotational motion about a first axis X1 through a pivot shaft 40 within an angular range of less than 180 degrees.

Referring to fig. 4, the pivot member 2 and the pivot shaft 40 are separately manufactured components. A shaft hole 20 is formed in the coupling member 2 to extend vertically therethrough, and the pivot shaft 40 includes a threaded connecting portion 42. When assembling, the connecting portion 42 is passed through the shaft hole 20 from the bottom to the top, and the nut 5 is screwed on the connecting portion 42 which is passed through the shaft hole 20 and protruded above the coupling member 2. The nut 5 is tightened to secure the shaft connector 2 to the pivot shaft 40. In other embodiments, the pivot member 2 is integrally formed with the pivot shaft 40 or is assembled with other removable or permanent connections. On opposite sides of the shaft coupling member 2, shaft protrusion portions 22 are provided which protrude along the second axis X2. A stopper 24 is provided above the coupling member 2 at a position away from the shaft hole 20.

Referring to fig. 3, the scraping arm 1 includes a body 18 formed by injection molding, and the receiving portion 12 and the mating portion 14 are respectively located at two opposite ends of the body 18. The receiving portion 12 is integrally provided with the mating portion 14, and has a compact appearance. The receiving portion 12 is provided with a downward opening 10, the opening 10 extending from the receiving portion 12 to the mating portion 14. In some embodiments, one or more ribs may also be disposed in the opening 10. The mating portion 14 is provided with an interface 15 for mounting the wiper blade 6, and the interface 15 is used for mounting the wiper blade 6 below the wiper arm 1. The receiving portion 12 is provided with two axial cavities 13, and the two axial cavities 13 are respectively arranged on two opposite inner sides of the opening 10 (only one of the two axial cavities 13 is shown in the figure due to the angle). Each shaft cavity 13 includes a first section 131 and a second section 132, the first section 131 and the second section 132 being in communication with each other, the first section 131 having an inlet opening downwardly.

When attached, the coupling 2 is attached to the housing portion 12 from the entrance. For example, the axon portion 22 enters from the entrance of the first segment 131, passes through the first segment 131, and is fitted into the second segment 132 after a turn of not less than 70 degrees. The shaft projection 22 is detachably fitted into the shaft cavity 13.

The wiper arm 1 is rotatable relative to the shaft connection 2 about a second axis X2, the first axis X1 being perpendicular to the second axis X2, and an elastically pre-deformable spring element 3 being mounted between the wiper arm 1 and the shaft connection 2. The first axis X1 and the second axis X2 are both located between the elastic member 3 and the mating portion 14. The elastic member 3 is mounted in the housing portion 12 with precompression. The elastic member 3 cooperates with the stopper portion 24 to restrict relative movement therebetween. For example, the elastic member 3 is a coil spring, the stopper portion 24 is a projection provided on the shaft connector 2, and the stopper portion 24 is inserted into the elastic member 3. The elastic member 3 applies a force to the wiper arm 1 to move the mating portion 14 downward.

In the use state, the part in the opening 10 is shielded and protected by the wiper arm 1 facing the surface to be wiped. Since the lower surface is not easily observed, even if a relatively complicated structure is provided below the wiper arm 1, the appearance of the wiper arm 1 is not substantially affected.

Notwithstanding the foregoing, the scope of protection of the present application is defined by the claims. The directional terms (e.g., upper and lower) used for convenience of description in this application merely indicate relative positional relationships, and do not indicate absolute positional relationships.

Claims

1. Wiper assembly, characterized in that it comprises:

the wiper arm (1) comprises an accommodating part (12) and a matching part (14) which are integrally arranged, wherein the accommodating part (12) is provided with a downward opening (10), the matching part (14) is provided with a connector (15) for installing the wiper blade (6), and the connector (15) is used for installing the wiper blade (6) below the wiper arm (1); and

a shaft connector (2) fixed on a pivot (40) and installed in the accommodating part (12) from the opening (10), wherein the pivot (40) can output a rotary motion around a first axis (X1), the scraping arm (1) can rotate around a second axis (X2) relative to the shaft connector (2), the first axis (X1) is perpendicular to the second axis (X2), an elastic component (3) which is elastically pre-deformed is installed between the scraping arm (1) and the shaft connector (2), and the elastic component (3) applies a force which enables the matching part (14) to move downwards to the scraping arm (1).

2. A wiper assembly as set forth in claim 1 further comprising an electric actuator (4), said electric actuator (4) being operative to output a reciprocating rotational movement through said pivot shaft (40) through an angular range of less than 180 degrees, said shaft member (2) being formed integrally with said pivot shaft (40) or being assembled in a detachable or permanent connection.

3. Wiper assembly according to claim 1, wherein the elastic element (3) is mounted pre-compressed in the receiving portion (12), the second axis (X2) being located between the elastic element (3) and the mating portion (14).

4. A wiper assembly as set forth in claim 1 wherein said shaft attachment member (2) is provided on opposite sides thereof with shaft projections (22) projecting along said second axis (X2), said receiving portion (12) having a shaft cavity (13) therein, said shaft projections (22) being removably mounted in said shaft cavity (13), said first axis (X1) being located between said resilient member (3) and said mating portion (14).

5. The wiper assembly as set forth in claim 4 wherein said axial cavity (13) includes a first section (131) and a second section (132), said first section (131) and said second section (132) being in communication with each other, said first section (131) having a downwardly open inlet, said shaft protrusion (22) entering from said inlet of said first section (131) when installed, passing through said first section (131) and being installed into said second section (132) through a turn of not less than 70 degrees.

6. A wiper assembly according to claim 1, characterized in that said shaft member (2) and said pivot shaft (40) are separately manufactured parts, said shaft member (2) comprising a shaft hole (20), said pivot shaft (40) comprising a coupling portion (42) provided with a thread, said coupling portion (42) passing through said shaft hole (20), said shaft member (2) being fastened to said pivot shaft (40) by means of a nut (5) screwed onto said coupling portion (42).

7. The wiper assembly as set forth in claim 1 wherein said opening (10) extends from said receiving portion (12) to said mating portion (14).

8. A wiper assembly according to claim 1, wherein said shaft connecting member (2) is provided with a stopper portion (24), and said elastic member (3) cooperates with said stopper portion (24) to restrict relative movement therebetween.

9. The wiper assembly according to claim 8, wherein said elastic member (3) is a coil spring, said stopper portion (24) is a protrusion provided on said shaft connecting member (2), and said stopper portion (24) is inserted into said elastic member (3).

10. A wiper assembly as set forth in claim 1 wherein said wiper arm (1) includes an injection molded body (18), said receiving portion (12) and said mating portion (14) being located at opposite ends of said body (18), respectively.