WIPER BLADE

• US 20140115811A1
• Filed: 10/23/2013
• Published: 05/01/2014
• Est. Priority Date: 10/26/2012
• Status: Active Grant

• Current Assignee: KBWS Corporatio
• Original Assignee: KCW Corporation
• Inventors: KIM, Kwan Hee, AN, Jae Hyuck, Park, Jin Wan
• Granted Patent: US 9,714,006 B2
• Time in Patent Office: Days
• US Class Current: 15/250.201
• CPC Class Codes: B60S 1/3801 characterised by a blade support harness consisting of several articulated elements B60S1/3803, B60S1/3806 take precedence
• CPC Class Codes: B60S 1/3806 Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
• CPC Class Codes: B60S 2001/3815 chacterised by the joint between elements
• CPC Class Codes: B60S 2001/4035 the connection being covered by a removable cover mounted on the blade
• CPC Class Codes: B60S 2001/408 the connecting part or the intermediate element being provided with holes for different diameters of pivoting pin

Abstract

Disclosed is a wiper blade which includes a wiper strip 10 which wipes a wiping surface; and a lever unit 20 which supports the wiper strip 10. The lever unit 20 includes: a main lever 30 which is connected to a wiper arm; at least one pair of yoke levers 50 which supports wiper strip 10; and a pair of first auxiliary levers 40 which is relatively rotatably coupled to the yoke levers 50 respectively and is coupled to the main lever 30. Both ends of the main lever 30 include a coupling portion 33 in which a hinge recess 34 is formed. The first auxiliary lever 40 includes a hinge shaft 41 which is inserted and fixed to the hinge recess 34. The hinge shaft 41 has a tapered cross section in a longitudinal direction of the wiper blade 1.

Claims

1. A wiper blade comprising:

a wiper strip 10 which wipes a wiping surface; and

a lever unit 20 which supports the wiper strip 10,

wherein the lever unit 20 comprises;

a main lever 30 which is connected to a wiper arm;

a pair of yoke levers 50 which supports wiper strip 10; and

a pair of first auxiliary levers 40 which is relatively rotatably coupled to the yoke levers 50 respectively and is coupled to the main lever 30,

wherein both ends of the main lever 30 comprise a coupling portion 33 in which a hinge recess 34 is formed,

wherein the first auxiliary lever 40 comprises a hinge shaft 41 which is inserted and fixed to the hinge recess 34,

and wherein the hinge shaft 41 has a tapered cross section in a longitudinal direction of the wiper blade 1.

2. The wiper blade of claim 1, wherein the hinge shaft 41 is formed such that a gap between the hinge shaft 41 and an opening of the hinge recess 34 becomes smaller toward the rear end from the front end of the hinge shaft 41 in a direction in which the hinge shaft 41 is inserted into the opening of the hinge recess 34.

3. The wiper blade of claim 1,

wherein the first auxiliary lever 40 further comprises a first catching protrusion 42 which is formed on one end thereof and is coupled to the yoke lever 50, and comprises a second catching protrusion 43 which is formed on the other end thereof and supports the wiper strip 10,

and wherein the yoke lever 50 comprises a catching recess 51 by which the first catching protrusion 42 is caught and which is concave in a width direction thereof, and comprises a pair of fasteners 52 which supports the wiper strip 10.

4. The wiper blade of claim 1, wherein the first auxiliary lever 40 and the yoke lever 50 are made of a resin material.

5. The wiper blade of claim 1, wherein the lever unit 20 further comprises a pair of second auxiliary levers 60 which supports the wiper strip 10, forms an appearance of the lever unit 20 and is relatively rotatably coupled to a pair of the first auxiliary levers 40 respectively.

6. The wiper blade of claim 5,

wherein the first auxiliary lever 40 comprises a first catching protrusion 42 so as to be coupled to the yoke lever 50 and comprises a second catching protrusion 43 so as to be coupled to the second auxiliary lever 60,

wherein the yoke lever 50 comprises a catching recess 51 by which the first catching protrusion 42 is caught and which is concave in a width direction thereof, and comprises a pair of fasteners 52 which supports the wiper strip 10,

and wherein the second auxiliary lever 60 comprises a catching recess 61 by which the second catching protrusion 43 is caught and which is concave in a width direction thereof, and comprises a pair of fasteners 62 which supports the wiper strip 10.

7. The wiper blade of claim 5, wherein the second auxiliary lever 60 further comprises a prominence and depression structure 63 which is received in a lower inside of the first auxiliary lever 40 and contacts with a lower surface of the first auxiliary lever 40.

8. The wiper blade of claim 5, wherein the first auxiliary lever 40, the yoke lever 50 and the second auxiliary lever 60 are made of a resin material.

9. The wiper blade of claim 1, wherein the yoke lever 50 is received in lower insides of the first auxiliary lever 40 and the main lever 30.

14. The wiper blade of claim 1, wherein, after the hinge shaft 41 is inserted into the hinge recess 34, the main lever 30 and the first auxiliary lever 40 are coupled to each other by rotating about the hinge shaft 41.

16. The wiper blade of claim 1, wherein the first auxiliary lever 40 further comprises a prominence and depression structure 44 which is received in a lower inside of the main lever 30 and contacts with a lower surface of the main lever 30.

18. The wiper blade of claim 1, wherein the main lever 30 further comprises a spoiler 31 which is integrally formed with a side thereof, toward which traveling wind flows, in such a manner as to be concave as a whole toward the wiper strip 10.

20. The wiper blade of claim 1, wherein the main lever 30 has a coupling hole 32 formed therein, to which the wiper arm is assembled, and further comprises an adaptor 70 which is assembled to the coupling hole 32 and is directly connected to the wiper arm.

22. The wiper blade of claim 20, further comprising a cover 80 which covers the main lever 30 and has an arm coupling receiving hole 82 formed in a central portion thereof, wherein the cover 80 is made of a resin material.

24. The wiper blade of claim 1, wherein the main lever 30 is made of a metallic material.

10. A wiper blade comprising:

a wiper strip 10 which wipes a wiping surface; and

a lever unit 20 which supports the wiper strip 10,

wherein the lever unit 20 comprises;

a main lever 30 which is connected to a wiper arm;

a pair of first auxiliary levers 40 which is relatively rotatably coupled to the main lever 30 and supports the wiper strip 10 in such a manner as to be slidable; and

a pair of second auxiliary levers 60 which is relatively rotatably coupled to a pair of the first auxiliary levers 40 respectively and supports the wiper strip 10 in such a manner as to be slidable,

wherein both ends of the main lever 30 comprise a coupling portion 33 in which a hinge recess 34 is formed,

wherein the first auxiliary lever 40 comprises a hinge shaft 41 which is inserted and fixed to the hinge recess 34,

and wherein the hinge shaft 41 has a tapered cross section in a longitudinal direction of the wiper blade 1.

11. The wiper blade of claim 10,

wherein the first auxiliary lever 40 further comprises a first catching protrusion 42 which is formed on one end thereof and supports the wiper strip 10, and comprises a second catching protrusion 43 which is formed on the other end thereof and is coupled to the second auxiliary lever 60,

and wherein the second auxiliary lever 60 comprises a catching recess 61 by which the second catching protrusion 43 is caught and which is concave in a width direction thereof, and comprises a pair of fasteners 62 which supports the wiper strip 10.

12. The wiper blade of claim 10, wherein the first auxiliary lever 40 and the second auxiliary lever 60 are made of a resin material.

13. The wiper blade of claim 10, wherein the second auxiliary lever 60 further comprises a prominence and depression structure 63 which is received in a lower inside of the first auxiliary lever 40 and contacts with a lower surface of the first auxiliary lever 40.

15. The wiper blade of claim 10, wherein, after the hinge shaft 41 is inserted into the hinge recess 34, the main lever 30 and the first auxiliary lever 40 are coupled to each other by rotating about the hinge shaft 41.

17. The wiper blade of claim 10, wherein the first auxiliary lever 40 further comprises a prominence and depression structure 44 which is received in a lower inside of the main lever 30 and contacts with a lower surface of the main lever 30.

19. The wiper blade of claim 10, wherein the main lever 30 further comprises a spoiler 31 which is integrally formed with a side thereof, toward which traveling wind flows, in such a manner as to be concave as a whole toward the wiper strip 10.

21. The wiper blade of claim 10, wherein the main lever 30 has a coupling hole 32 formed therein, to which the wiper arm is assembled, and further comprises an adaptor 70 which is assembled to the coupling hole 32 and is directly connected to the wiper arm.

23. The wiper blade of 22, wherein the cover 80 further comprises a spoiler 81 which is integrally formed with a side thereof, toward which traveling wind flows, in such a manner as to be concave as a whole toward the wiper strip 10.