US 11,738,719 B2
Connecting structure of wiper arm
Hiroki Kashihara, Gunma (JP); and Tomoya Nishikawa, Gunma (JP)
Assigned to MITSUBA Corporation, Gunma (JP)
Filed by MITSUBA Corporation, Gunma (JP)
Filed on Feb. 23, 2022, as Appl. No. 17/679,041.
Claims priority of application No. 2021-088356 (JP), filed on May 26, 2021.
Prior Publication US 2022/0379849 A1, Dec. 1, 2022
Int. Cl. B60S 1/40 (2006.01); B60S 1/38 (2006.01); B60S 1/58 (2006.01)
CPC B60S 1/3849 (2013.01) [B60S 1/40 (2013.01); B60S 1/4038 (2013.01); B60S 1/4041 (2013.01); B60S 1/4064 (2013.01); B60S 1/583 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A connecting structure of a wiper arm, comprising:
a wiper blade, connected to the wiper arm;
a first connecting part, provided on the wiper arm; and
a second connecting part, provided on the wiper blade and connected with the first connecting part, wherein
any one of the first connecting part and the second connecting part is a connecting shaft extending along a width direction of the wiper arm;
the other of the first connecting part and the second connecting part comprises a pair of claws defining a groove able to be engaged with the connecting shaft;
the pair of claws have flexibility for bending in a direction of increasing an opening width of the groove;
a slit defined by inner walls facing each other is provided on each side of the pair of claws in a direction along a longitudinal direction of the wiper blade;
a first protrusion protruding toward inside each of the slits is provided on any one of the inner walls facing each other, and a second protrusion protruding toward inside each of the slits is provided on the other of the inner walls facing each other;
the first protrusions and the second protrusions are respectively arranged offset from each other in a direction along an axial direction of the connecting shaft, and the first protrusions face a flat surface of a respective one of the inner walls, and the second protrusions face a flat surface of another respective one of the inner walls, wherein the first protrusions and the second protrusions respectively partially overlap each other in a direction orthogonal to the axial direction of the connecting shaft.