Patent ID: 6658691
Filing Date: 2003-12-09
Classification: B60S

Abstract:
A wiper arm to be fixed to and driven by a pivot shaft for making a wiper blade wipe a windshield glass, comprising:an arm head whose one end is to be fixed to the pivot shaft and whose other end has a holding axis; an arm member whose one end is pivotally connected to the arm head so as to rotate about the holding axis in a direction away from the windshield glass and whose other end is to be connected with the wiper blade; a biasing member bridging between and retained by the arm head and the arm member for biasing the arm member toward the windshield glass so that the wiper blade may be pressed against the windshield glass, the biasing member causing the arm member to rest at a position where the arm member comes in contact with the arm head, when the arm member is rotated beyond a given angle to the arm head in the direction away from the windshield glass, and to return to an original position, when the arm member is rotated within the given angle to the arm head in the direction away from the windshield glass; and a rotation restriction member attached to at least one of the arm head and the arm member, a position of the rotation restriction member relative to the at least one of the arm head and the arm member being changed over at user's choice from a first position, where the rotation restriction member restricts the arm member to the rotation only within the given angle to the arm head, to a second position, where the rotation restriction member allows the rotation of the arm member beyond the given angle to the arm head.