WINDSHIELD WIPER WITH EVEN PRESSING FORCE

• US 20120311808A1
• Filed: 10/26/2011
• Published: 12/13/2012
• Est. Priority Date: 06/09/2011
• Status: Active Grant

• Current Assignee: Chih-Ming Yang, Chuan-Chih Chang
• Original Assignee: Chih-Ming Yang, Chuan-Chih Chang
• Inventors: YANG, Chih-Ming, CHANG, Chuan-Chih
• Granted Patent: US 9,009,910 B2
• Time in Patent Office: Days
• US Class Current: 15/250.32
• 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 1/381 Spoilers mounted on the squeegee or on the vertebra
• CPC Class Codes: B60S 2001/3812 Means of supporting or holding the squeegee or blade rubber
• CPC Class Codes: B60S 2001/3813 chacterised by a support harness consisting of several articulated elements
• CPC Class Codes: B60S 2001/3815 chacterised by the joint between elements

Abstract

A windshield wiper (1) with an even pressing force is connected to a driving arm (2) and includes a primary wiper frame (10), two auxiliary wiper frames (20), connecting frames (30), and a wiper blade (40). The primary wiper frame (10) includes a fixing base (11) connected to the driving arm (2). The auxiliary wiper frames (20) are disposed on both ends of the primary wiper frame (10). Each auxiliary wiper frame (20) includes an elastic piece (21) and a pivotal base (22) fixed to the elastic piece (21) and pivotally connected to the primary wiper frame (10). The connecting frames (30) are evenly provided on each auxiliary wiper frame (20). Each connecting frame (30) includes a pressing piece (31) and buckling brackets (32). The wiper blade (40) is disposed through the buckling brackets (32) to be connected below the pressing piece (31).

Claims

1. A windshield wiper (1) with an even pressing force, connected to a driving arm (2) and including:

a primary wiper frame (10) comprising a fixing base (11) connected to the driving arm (2);

a pair of auxiliary wiper frames (20) provided on both ends of the primary wiper frame (10), each of the auxiliary wiper frames (20) comprising an elastic piece (21) and a pivotal base (22) fixed to the elastic piece (21), the pivotal base (22) being pivotally connected to the primary wiper frame (10);

a plurality of connecting frames (30) evenly provided on each of the auxiliary wiper frames (20), each of the connecting frames (30) comprising a pressing piece (31) and a plurality of buckling brackets (32) provided on the pressing piece (31); and

a wiper blade (40) disposed through the buckling brackets (32) to be connected below the pressing piece (31).

2. The windshield wiper with an even pressing force according to claim 1, wherein the fixing base (11) has a pivotal shaft (110), and the pivotal shaft (110) is connected to the driving arm (2).

3. The windshield wiper with an even pressing force according to claim 1, wherein the primary wiper frame (10) further comprises a set of fixing arms (12) connected to both sides of the fixing base (11) respectively, and the pivotal base (22) is connected to the fixing arm (12).

4. The windshield wiper with an even pressing force according to claim 3, wherein the auxiliary wiper frame (20) further comprises a set of rods (23), and each rod (23) is disposed through the pivotal base (22) and the fixing arm (12), thereby connecting the pair of auxiliary wiper frames (20) to the fixing arms (12).

5. The windshield wiper with an even pressing force according to claim 4, wherein the fixing arm (12) is provided with a first pivotal hole (120), the pivotal base (22) is provided with a second pivotal hole (220), the rod (23) is disposed through the first pivotal hole (120) and the second pivotal hole (220).

6. The windshield wiper with an even pressing force according to claim 4, wherein the pivotal base (22) comprises a first connecting base (221) and a second connecting base (222) connected to both sides of the elastic piece (21) respectively, and the first connecting base (221) and the second connecting base (222) are respectively provided with the second pivotal hole (220) for allowing the rod (23) to be disposed through.

7. The windshield wiper with an even pressing force according to claim 6, wherein the first connecting base (221) is provided with a first through-hole (2210), the second connecting base (222) is provided with a second through-hole (2220), and the first connecting base (221) and the second connecting base (222) are positioned on both sides of the elastic piece (21) by means of the first through-hole (2210) and the second through-hole (2220).

8. The windshield wiper with an even pressing force according to claim 1, wherein the connecting frame (30) further comprises a plurality of positioning blocks (33), the elastic piece (21) is provided with a plurality of first troughs (210), each of the pressing pieces (31) is provided with a second trough (310), and the positioning block (33) is disposed through the second trough (310) to abut in the first trough (210).

9. The windshield wiper with an even pressing force according to claim 1, wherein the pressing piece (31) is formed into an arc shape, and a middle portion of the pressing piece (31) is located at a level higher than that of both sides of the pressing piece (31).

10. The windshield wiper with an even pressing force according to claim 1, wherein the buckling bracket (32) comprises a U-shaped frame (321) and a set of restricting pieces (322) formed inside the U-shaped frame (321), and the wiper blade (40) is slidingly connected to the inside of the set of the restricting pieces (322).

11. The windshield wiper with an even pressing force according to claim 10, wherein the wiper blade (40) comprises a fixing section (41) and a wiping section (42) connected to the fixing section (41), the fixing section (41) is disposed through the U-shaped frame (321) along the set of restricting pieces (322), and the wiping section (42) is exposed to the outside of the U-shaped frame (321).