Patent ID: 6237185
Filing Date: 2001-05-29
Classification: B60S,Y10S,Y10T

Abstract:
A wiper device for a vehicle having a vehicle body, comprising:a wiper motor;a wiper pivot operatively connected to said wiper motor;a pivot holder which supports said wiper pivot so that it projects out of the vehicle body and so that it can rotate about the pivot axis in response to the transmission of a drive force thereto from said wiper motor;a partially destructible position maintaining structure which prevents axial displacement between said wiper pivot and said pivot holder until a predetermined load is applied to said wiper pivot and the wiper pivot is permitted to move relative to said pivot holder to an inner side of the vehicle body; andwherein said position maintaining structure comprises:a groove portion formed in said wiper pivot,a first engaging piece, anda second engaging piece, the first engaging piece comprising:a breakable member which is disposed with the wiper pivot, which has a predetermined structural resistance to breakage that is lower than the second engaging piece, and which breaks upon the application of the predetermined load, and wherein the second engaging piece comprises:a connection member which snugly engages in the groove formed in the wiper pivot and engages the first engaging piece and prevents axial displacement of the wiper pivot with respect to the pivot holder until the first engaging piece breaks under the application of the predetermined load.