FLAT WIPER BLADE AND COUPLING METHOD

• US 20150158463A1
• Filed: 07/14/2014
• Published: 06/11/2015
• Est. Priority Date: 12/05/2013
• Status: Active Grant

• Current Assignee: KBWS Corporatio
• Original Assignee: KCW Corporation
• Inventors: Yi, Tak Min
• Granted Patent: US 9,845,077 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60S 1/34 Wiper arms; Mountings therefor wiper arms provided with liquid spreading means B60S1/522; with gas spreading means B60S1/544
• CPC Class Codes: B60S 1/3808 Spoiler integral with the squeegee
• CPC Class Codes: B60S 1/3848 Flat-type wiper blade, i.e. without harness
• CPC Class Codes: B60S 1/3851 Mounting of connector to blade assembly
• CPC Class Codes: B60S 1/3875 rectangular section
• CPC Class Codes: B60S 1/3879 placed in side grooves in the squeegee
• CPC Class Codes: B60S 2001/3812 Means of supporting or holding the squeegee or blade rubber
• CPC Class Codes: B60S 2001/3817 chacterised by a backing strip to aid mounting of squeegee in support
• CPC Class Codes: B60S 2001/3822 characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips
• CPC Class Codes: B60S 2001/3841 Squeegee modifications to prevent longitudinally sliding of squeegee in support structure
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Disclosed is a flat wiper blade that includes: a wiper strip 10 which wipes a wiping surface; at least one guide clip 20 which passes through and is fitted to the wiper strip 10 in a width direction of the wiper strip 10; and a guide spring 30 which is coupled to the wiper strip 10 and the guide clip 20 and supports the wiper strip 10.

Claims

1. A flat wiper blade comprising:

a wiper strip 10 which wipes a wiping surface;

at least one guide clip 20 which passes through and is fitted to the wiper strip 10 in a width direction of the wiper strip 10; and

a guide spring 30 which is coupled to the wiper strip 10 and the guide clip 20 and supports the wiper strip 10.

2. The flat wiper blade of claim 1,

wherein the wiper strip 10 comprises a base 11 and a wiping lip 12 which is disposed under the base 11,

wherein the base 11 comprises receiving recesses 14 which are formed on both sides of a width direction central portion of the base 11 and extend parallel to each other in the longitudinal direction of the base 11,

and wherein the guide spring 30 is fitted to the receiving recess 14.

3. The flat wiper blade of claim 2,

wherein the wiper strip 10 further comprises at least one guide clip hole 15 which is formed to pass through the receiving recess 14 in the width direction of the wiper strip 10,

and wherein the guide clip 20 passes through and is fitted to the guide clip hole 15.

4. The flat wiper blade of claim 3, wherein a spoiler is integrally formed with the wiper strip 10 on both longitudinal ends of the wiper strip 10.

5. The flat wiper blade of claim 3, further comprising a fixing guide clip 21 or a fastening guide clip 22,

wherein the fixing guide clip 21 or the fastening guide clip 22 passes through and is fitted to the guide clip hole 15,

and wherein the guide spring 30 comprises a guide clip coupling recess 36 to which the fixing guide clip 21 or the fastening guide clip 22 is coupled.

6. The flat wiper blade of claim 5, wherein the fixing guide clip 21 or the fastening guide clip 22 comprises at least one pair of guide spring coupling protrusions 26 formed at both ends thereof, and wherein the guide spring coupling protrusion 26 is caught by the guide clip coupling recess 36.

7. The flat wiper blade of claim 6, wherein the guide spring coupling protrusion 26 is elastically caught by the guide clip coupling recess 36.

8. The flat wiper blade of claim 1,

wherein the guide clip 20 comprises guide spring coupling holes 24 which are formed at both sides of a central portion of the guide clip 20 in the width direction of the wiper strip 10 in a state where the guide clip 20 has been coupled to the wiper strip 10 and which extend parallel to each other in the longitudinal direction of the wiper strip 10, and

wherein the guide spring 30 passes through and is fitted to the guide spring coupling hole 24 of the guide clip 20.

9. The flat wiper blade of claim 1, wherein the guide clip 20 further comprises a catching portion 29 of which the end is caught by a catching surface 19 of the wiper strip 10.

10. The flat wiper blade of claim 5, wherein the fixing guide clip 21 or the fastening guide clip 22 further comprises a catching portion 29 of which the end is caught by a catching surface 19 of the wiper strip 10.

11. The flat wiper blade of claim 2, wherein the guide spring 30 comprises a first guide spring 31 and a second guide spring 32.

12. The flat wiper blade of claim 4,

wherein an upper surface 15a of the guide clip hole 15 is located higher than an upper surface 14a of the receiving recess 14 and is located lower than a top surface 11a of the spoiler,

wherein a lower surface 15b of the guide clip hole 15 is located higher than a lower surface 11b of the base 11, and

wherein a height direction gap of the guide clip hole 15 is larger than that of the receiving recess 14 and is smaller than that of the base 11.

13. The flat wiper blade of claim 1, further comprises a seating part 100 which is coupled to the wiper strip 10 in an attachable and removable manner, and wherein the guide spring 30 is coupled to the seating part 100.

14. The flat wiper blade of claim 13,

wherein the seating part 100 comprises an inner surface 150 and at least one bridge 138 which connects both sides of a bottom surface of the seating part 100 through the central portion thereof,

wherein the wiper strip 10 further comprises at least one seating part bridge receiving recess 18 which is formed on a top surface of a longitudinal central portion of the wiper strip 10,

wherein the bridge 138 is inserted into the seating part bridge receiving recess 18, and

wherein the guide spring 30 is fitted by passing through between the inner surface 150 of the seating part 100 and a top surface of the bridge 138.

15. A method for coupling a wiper strip 10, a guide clip 20, a guide spring 30 and a seating part 100 of a flat wiper blade, the method comprising:

a step in which the at least one guide clip 20 passes through and is fitted to a guide clip hole 15 of the wiper strip 10;

a step in which the guide spring 30 is coupled to the wiper strip 10 and the guide clip 20; and

a step in which the seating part 100 is coupled to the wiper strip 10 or the guide spring 30 under a state where the wiper strip 10, the guide clip 20 and the guide spring 30 have been coupled to each other.

18. The method of claim 15, further comprising:

a step in which at least one fixing guide clip 21 or at least one fastening guide clip 22 passes through and is fitted to the guide clip hole 15 of the wiper strip 10; and

a step in which a guide spring coupling protrusion 26 of either the fixing guide clip 21 or the fastening guide clip 22 is caught by a guide clip coupling recess 36 of the guide spring 30.

19. The method of claim 15, wherein the step in which the at least one guide clip 20 passes through and is fitted to a guide clip hole 15 of the wiper strip 10 comprises a step in which an end of a catching portion 29 of the guide clip 20 is caught by a catching surface 19 of the wiper strip 10.

16. A method for coupling a wiper strip 10, a guide clip 20, a guide spring 30 and a seating part 100 of a flat wiper blade, the method comprising:

a step in which the at least one guide clip 20 passes through and is fitted to a guide clip hole 15 of the wiper strip 10;

a step in which the seating part 100 is coupled to the wiper strip 10; and

a step in which the guide spring 30 is coupled to the wiper strip 10, the guide clip 20 and the seating part 100 under a state where the wiper strip 10, the guide clip 20 and the seating part 100 have been coupled to each other.

20. The method of claim 16, wherein the step in which the seating part 100 is coupled to the wiper strip 10 comprises a step in which a bridge 138 of the seating part 100 is inserted into a seating part bridge receiving recess 18 of the wiper strip 10.

17. A method for coupling a wiper strip 10, a guide clip 20, a guide spring 30 and a seating part 100 of a flat wiper blade, the method comprising:

a step in which the seating part 100 is coupled to the wiper strip 10;

a step in which the at least one guide clip 20 passes through and is fitted to a guide clip hole 15 of the wiper strip 10; and

a step in which the guide spring 30 is coupled to the wiper strip 10, the guide clip 20 and the seating part 100 under a state where the wiper strip 10, the guide clip 20 and the seating part 100 have been coupled to each other.