CN214985250U

CN214985250U - Wiper blade

Info

Publication number: CN214985250U
Application number: CN202121217591.XU
Authority: CN
Inventors: 张立东
Original assignee: Bosch Automotive Components Changchun Co Ltd
Current assignee: Bosch Automotive Components Changchun Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-03
Anticipated expiration: 2031-06-02

Abstract

The present application provides a wiper blade. The rubber scraping strip is assembled on the bearing strip and is provided with a scraping edge positioned below the bearing strip. The connecting piece is installed in the middle part of the bearing strip, the connecting piece is provided with a connecting part which is positioned above the bearing strip and used for connecting the water scraping arm, and the two longitudinal ends of the connecting piece are respectively provided with a first locking part. The two turbulence strips are respectively arranged on the bearing strips at the two longitudinal ends of the connecting piece, each turbulence strip is provided with a second locking part and a turbulence surface, and the second locking part is matched with the first locking part to fix the turbulence strip on the connecting piece. The wiper blade has simple structure and low cost.

Description

Wiper blade

Technical Field

The present invention relates to a surface cleaning device, and more particularly, to a wiper blade for cleaning a windshield of an automobile in a wiping manner.

Background

A wiper blade for wiping a windshield of an automobile generally includes a connecting member, a carrier strip, a rubber wiper strip supported by the carrier strip, and a spoiler strip. The carrying strip is prefabricated into an approximate arc shape with two ends bent downwards by a longitudinal flat steel with good elasticity. The connecting piece is installed in the middle part of the bearing strip, and the scraping edge of the scraping strip is positioned below the bearing strip. The scraping edge is used for directly contacting the glass and cleaning the surface of the glass in a scraping way. The two turbulence strips are respectively arranged on the bearing strips at the two ends of the connecting piece and are fixed through end covers arranged at the two ends of the bearing strips. The spoiler strip is provided with a spoiler surface positioned above the bearing strip, and wind and rain with relative speed impact on the spoiler surface to generate pressure for the wiper blade to cling to the windshield in the driving process of the automobile.

SUMMERY OF THE UTILITY MODEL

The technical problem that the structure of the existing wiper blade is complex is mainly solved.

In order to solve the above-mentioned problems, the present application provides a wiper blade including:

a carrier strip having an elongated shape extending in a longitudinal direction;

a wiper strip of rubber assembled to the carrier strip, the wiper strip having a wiper edge below the carrier strip for contacting a surface to be wiped;

the connecting piece is arranged in the middle of the bearing strip and is provided with a connecting part which is positioned above the bearing strip and is used for connecting the wiper arm, and the longitudinal two ends of the connecting piece are respectively provided with a first locking part; and

the two turbulence strips are respectively arranged at the two longitudinal ends of the connecting piece, each turbulence strip is provided with a second locking part and a turbulence surface, and the second locking part is matched with the first locking part to fix the turbulence strips on the connecting piece.

In some embodiments, the carrier strip includes two elastic steel bars, the steel bars are prefabricated from flat steel into a substantially arc shape with both longitudinal ends bent downward, and the wiper strip is installed between the two steel bars.

In some embodiments, each of the spoiler strips includes two legs spaced apart from each other, a longitudinal groove opened inward is provided inside each of the legs, the longitudinal groove extends in the longitudinal direction, and the carrier strip is inserted into the longitudinal groove from one end of the longitudinal direction to be mounted in the longitudinal groove.

In some embodiments, the spoiler surface is provided as a continuous surface that gradually increases from the leading edge to the trailing edge, so that the airflow exerts a force on the wiper blade toward the surface to be wiped during driving of a vehicle in which the wiper blade is used.

In some embodiments, the second locking portion includes a protrusion protruding from an outer side of the leg, the connecting member includes a housing, the first locking portion includes a protrusion protruding from an inner side of the housing, the spoiler is inserted into the housing in the longitudinal direction, and the protrusion of the second locking portion is locked and fixed with the protrusion of the first locking portion.

In some specific embodiments, a stopping portion is disposed at one end of the spoiler, the end being away from the connecting member, and the stopping portion prevents the spoiler from moving in a direction away from the connecting member.

In some embodiments, each of the spoiler strips is integrally injection molded from plastic.

In some embodiments, the second locking portion includes protrusions protruding from the outer sides of the legs, which are respectively disposed at the front and rear opposite sides of each spoiler, and the first locking portion includes protrusions protruding from the opposite inner sides of the housing corresponding to the protrusions of the second locking portion.

In some embodiments, the stop is integrally connected between the two legs.

In some embodiments, at least one of the protrusion of the second locking portion and the protrusion of the first locking portion includes a guiding surface, the guiding surface is inclined with respect to the longitudinal direction, the protrusion of the second locking portion and the protrusion of the first locking portion are guided by the guiding surface to elastically offset in a direction perpendicular to the longitudinal direction toward a direction away from each other when the spoiler is installed, and after passing over the guiding surface, the protrusion of the second locking portion and the protrusion of the first locking portion move back in the direction perpendicular to the longitudinal direction to complete the locking.

According to the technical scheme of the application, the wiper blade is simple in structure and low in cost.

Drawings

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

fig. 1 shows a schematic view of an embodiment of a wiper blade;

fig. 2 shows a partially enlarged illustration of the wiper blade attachment of fig. 1 from below;

fig. 3 shows a partially enlarged view of the end of the wiper blade of fig. 1 from below;

figure 4 shows a schematic view of the wiper blade standing upright on a glass, taken along the line a-a as shown in figure 2;

fig. 5 is a partially enlarged view of the point B shown in fig. 2.

Detailed Description

For convenience of explanation of the structure of the wiper blade 100, in the present application, the direction of the window to be wiped by the wiper blade is downward, and the direction of the wind coming during the running of the vehicle is forward of the wiper blade and rearward of the wind going direction. Referring to fig. 4, during travel of the vehicle, wind is blown across the glass surface from left to right as indicated by the open arrows. The lower side of the figure is the lower side of the wiper blade, and the upper side of the figure is the upper side, the left side of the figure is the front side, and the right side of the figure is the rear side, correspondingly.

Referring to fig. 1 to 5, a wiper blade 100 according to an embodiment of the present application includes a carrier strip 1, a wiper strip 2, a connecting member 3, and a spoiler 5.

The carrier strip 1 is elongate and extends in the longitudinal direction. The bearing strip 1 has high rigidity in the front-back transverse direction and good elasticity in the up-down direction. For example, the carrier strip 1 includes two elastic steel strips 10, and the steel strips 10 are prefabricated from flat steel into a substantially arc shape with longitudinal ends bent downward. The rubber wiper strip 2 is assembled to the carrier strip 1. For example, the wiper strip 2 is installed between two steel bars 10. The middle part of the bearing strip 1 is provided with a connecting piece 3, and the bearing strips 1 at the longitudinal two ends of the connecting piece 3 are respectively provided with a turbulence strip 5. That is to say that the connecting piece 3 is situated between two spoiler strips 5 in the longitudinal direction.

The upper part of the wiper strip 2 made of rubber is mounted on the carrier strip 1, the wiper strip 2 having a wiper edge 20 located below the carrier strip 1. The wiping edge 20 is intended to act directly on the surface to be wiped, for example, in operation the wiping edge 20 contacts the surface 9 to be wiped, with a cleaning action being produced by wiping.

The connecting member 3 has a connecting portion 32 located above the carrier bar 1 for connecting a wiper arm (not shown), and first locking portions 30 are provided at both longitudinal ends of the connecting member 3. For example, a wiper drive is mounted on a vehicle, and a wiper arm is connected to the drive. When the driving device is operated, the driving device drives the wiper arm to swing back and forth, so that a wiper blade 100 connected to the wiper arm is driven by the wiper arm to move back and forth on the surface 9 to be wiped, and cleaning work is performed.

Each spoiler 5 has a second locking portion 50 and a spoiler surface 56, and the second locking portion 50 is engaged with the first locking portion 30 to fix the spoiler 5 to the connecting member 3.

Each spoiler strip 5 comprises two legs 52 spaced apart from each other, a longitudinal groove 54 open to the inside is provided on the inside of each leg 52, the longitudinal groove 54 extends in the longitudinal direction, and the carrier strip 1 can be inserted into the longitudinal groove 54 from one longitudinal end and mounted in the longitudinal groove 54. As shown in fig. 4, the outside of each bar 10 is mounted in a longitudinal groove 54. The spoiler surface 56 is provided as a continuous surface that gradually rises from the front edge 57 to the rear edge 58, so that the air flow exerts a force on the wiper blade towards the surface to be wiped during driving of the vehicle in which the wiper blade is used.

A stop portion 53 is arranged at one end of each spoiler strip 5 far away from the connecting member 3. The stopper portion 53 is integrally connected between the two legs 52. The stopper 53 prevents the wiper strip 2 from moving longitudinally away from the connecting member 3 without the need for additional end caps.

The second locking part 50 includes a projection projecting from an outer side of the leg 52, the connecting member 3 includes a housing, the first locking part 30 includes a projection projecting from an inner side of the housing, the spoiler 5 is longitudinally inserted into the housing, and the projection of the second locking part 50 is locked and fixed with the projection of the first locking part 30.

The projections of the second locking portions 50 may be one or more. For example, the second locking portions 50 include projections protruding from the outer sides of the legs 52 provided on the front and rear opposite sides of each spoiler 5, respectively. The first locking part 30 includes protrusions protruding from opposite inner sides of the housing corresponding to the protrusions of the second locking parts 50 at both sides, respectively.

At least one of the projections of the second locking portion 50 and the projections of the first locking portion 30 includes a

guide surface

301, 501. The guiding

surfaces

301 and 501 are inclined relative to the longitudinal direction, when the spoiler 5 is installed, the convex block of the second locking portion 50 and the convex block of the first locking portion 30 are guided by the

guiding surfaces

301 and 501 to elastically deflect in the direction perpendicular to the longitudinal direction and away from each other, and after the spoiler 5 passes over the

guiding surfaces

301 and 501, the convex block of the second locking portion 50 and the convex block of the first locking portion 30 move back in the direction perpendicular to the longitudinal direction to complete buckling.

Each spoiler strip 5 is formed by plastic through integral injection molding and is easy to manufacture. The installation of the turbulence strip 5 is completed in one step, an end cover is not required to be additionally arranged, and the installation step is simple.

Overall, the wiper blade 100 is simple in structure and low in cost.

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

Description of the reference numerals

Carrier strip 1

Steel bar 10

Wiper blade 100

Scraping bar 2

Scraping edge 20

Connecting piece 3

First locking part 30

Guide surfaces 301, 501

Connecting part 32

Turbulence strip 5

Second locking part 50

Leg 52

Stop part 53

Longitudinal slot 54

Turbulent surface 56

Leading edge 57

Trailing edge 58

The surface to be wiped 9

Claims

1. Wiper blade, characterized in that it comprises:

a carrier strip (1) which is elongate and extends in the longitudinal direction;

a wiper strip (2) of rubber assembled to the carrier strip (1), the wiper strip (2) having a wiping edge (20) for contacting a surface to be wiped located below the carrier strip (1);

the connecting piece (3) is arranged in the middle of the carrying strip (1), the connecting piece (3) is provided with a connecting part (32) which is positioned above the carrying strip (1) and is used for connecting the wiper arm, and the two longitudinal ends of the connecting piece (3) are respectively provided with a first locking part (30); and

two vortex strips (5), it install respectively in the vertical both ends of connecting piece (3) carry strip (1), every vortex strip (5) have second hasp portion (50) and vortex face (56), second hasp portion (50) with first hasp portion (30) cooperate and will vortex strip (5) are fixed in connecting piece (3).

2. Wiper blade according to claim 1, wherein the carrier strip (1) comprises two resilient steel strips (10), the steel strips (10) being prefabricated from flat steel into a substantially arc shape with longitudinal ends bent downwards, the wiper strip (2) being mounted between the two steel strips (10).

3. Wiper blade according to claim 1, wherein each spoiler strip (5) comprises two legs (52) spaced apart from each other, wherein the inner side of each leg (52) is provided with a longitudinal groove (54) open to the inside, wherein the longitudinal groove (54) extends in the longitudinal direction, and wherein the carrier strip (1) can be mounted in the longitudinal groove (54) by being inserted into the longitudinal groove (54) from one end in the longitudinal direction.

4. Wiper blade according to claim 1, wherein the spoiler surface (56) is provided as a continuous surface which is gradually rising from the front edge (57) to the rear edge (58), so that the air flow exerts a force on the wiper blade towards the surface to be wiped during driving of a vehicle in which the wiper blade is used.

5. The wiper blade according to claim 3, wherein the second locking portion (50) includes a projection projecting from an outer side of the leg (52), the connecting member (3) includes a housing, the first locking portion (30) includes a projection projecting from an inner side of the housing, the spoiler strip (5) is inserted into the housing in the longitudinal direction, and the projection of the second locking portion (50) is fixed by being locked with the projection of the first locking portion (30).

6. Wiper blade according to claim 3, wherein a stop (53) is provided at the end of the spoiler strip (5) remote from the connecting piece (3), which stop (53) prevents the wiper strip (2) from moving in the direction away from the connecting piece (3).

7. Wiper blade according to claim 1, wherein each spoiler strip (5) is integrally injection-molded from plastic.

8. The wiper blade according to claim 5, wherein the second locking portions (50) include protrusions protruding from the outer sides of the legs (52) provided at the front and rear opposite sides of each spoiler (5), respectively, and the first locking portions include protrusions protruding from the opposite inner sides of the housing corresponding to the protrusions of the second locking portions (50), respectively.

9. Wiper blade according to claim 6, wherein the stop (53) is integrally connected between the two legs (52).

10. The wiper blade according to claim 5, wherein at least one of the projection of the second locking portion (50) and the projection of the first locking portion (30) includes a guide surface which is inclined with respect to the longitudinal direction, and the projection of the second locking portion (50) and the projection of the first locking portion (30) are elastically biased in a direction perpendicular to the longitudinal direction toward a direction away from each other under the guide of the guide surface when the spoiler (5) is mounted, and the projection of the second locking portion (50) and the projection of the first locking portion (30) are moved back in a direction perpendicular to the longitudinal direction after passing over the guide surface to complete the engagement.