Patent ID: 6594854
Filing Date: 2003-07-22
Classification: B60S

Abstract:
Wiper device for wiping a wind shield glass of a vehicle having a coupling construction of a wiper arm and a wiper blade comprising:a center bore provided in a center portion of the wiper blade; a supporting shaft extending transversely to a longitudinal axis of the wiper blade in the center bore, the supporting shaft having first and second diameter portions extending respectively in an axial direction thereof at a circumference thereof and a diametric length of the second diameter portion being smaller than that of the first diameter portion; and a connecting hole provided transversely to a longitudinal axis of the wiper arm at a leading end portion of the wiper arm, the connecting hole being provided at a circumference thereof with an opening whose chord length is larger than the diametric length of the second diameter portion but smaller than the diametric length of the first diameter portion, wherein the wiper blade may be attached to and detached from the wiper arm by making the second diameter portion correspond to the opening and moving the second diameter portion through the opening into and out of the connecting hole in the center bore, but the wiper blade may not be detached from the wiper arm at a normal operation of the wiper device by rotating the wiper blade relatively to the wiper arm till a position where the second diameter portion does not correspond to the opening in the connecting hole, and wherein the wiper blade comprises a lever assembly with a sealing element covering an entire portion of the lever assembly, a clip holder affixed to the lever assembly through the sealing element, and blade rubber held by the lever assembly for wiping the wind shield glass, the center bore and the supporting shaft being disposed in the clip holder so that the lever assembly may be rotatably supported by the wiper arm.