US 11,685,340 B1
Wiper structure
Che-Wei Chang, Jiangsu (CN); and Cheng-Kai Yang, Jiangsu (CN)
Assigned to DANYANG UPC AUTO PARTS CO., LTD., Jiangsu (CN)
Filed by DANYANG UPC AUTO PARTS CO., LTD., Jiangsu (CN)
Filed on Jan. 14, 2022, as Appl. No. 17/576,063.
Int. Cl. B60S 1/34 (2006.01); B60S 1/04 (2006.01); B60S 1/38 (2006.01)
CPC B60S 1/3411 (2013.01) [B60S 1/0469 (2013.01); B60S 1/3801 (2013.01); B60S 1/3806 (2013.01); B60S 2001/3815 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A wiper structure, comprising:
a main wiper frame, comprising a fixing seat;
a pair of secondary wiper frame, connected to two ends of the main wiper frame, each secondary wiper frame comprising a flexible sheet, the flexible sheet comprising multiple sliding troughs, each sliding trough comprising a trough length and a trough width in size, and the trough length greater than the trough width;
multiple engaging frames, evenly disposed on each secondary wiper frame, each engaging frame comprising a pressing wing and a sliding block, the pressing wing comprising an opening, the sliding block comprising a neck bar passing through the opening, the neck bar comprising a passing diameter less than the trough width by at least 0.2 mm, the passing diameter less than the trough width, the sliding block of each engaging frame passing through the opening and abutting against each sliding trough through the neck bar, and the sliding block slidable in each sliding trough with respect to a change of an external force exerted on corresponding one of the secondary wiper frames; and
a blade, connected under the pressing wings,
wherein the neck bar comprises a plane disposed on a side thereof slidable with respect to the sliding trough so that a gap is formed between the flexible sheet and the sliding block for facilitating a movement of the sliding block relative to the flexible sheet.