Patent ID: 8468643
Filing Date: 2013-06-25
Classification: B60S

Abstract:
1. A warning indicator for use with wiper blades, the warning indicator being configured to operate in a hibernation mode and an activation mode, comprising: a housing configured to snap-engage a wiper frame of an oscillating wiper blade of a wiper device; a counting unit disposed in the housing and being configured to detect oscillating movements of the wiper blade one at a time, the counting unit being configured such that an oscillating number of the wiper blade is accumulatively increased; an indicating unit exposed on the housing for indicating a warning under a control of the counting unit when the oscillating number comes to a predetermined value; and an electrical source disposed in the housing for supplying an electrical power to the counting unit and the indicating unit, wherein the counting unit includes: wherein the signal generating unit includes: wherein the indicating unit is controlled by the control unit, wherein a contact between the mover and the first and second electrical contacts generates the signal, wherein the signal generating unit is configured to generate the signal during each oscillating movement of the wiper blade in the hibernation mode, and wherein the control unit is configured to change from the hibernation mode, where the oscillating number is not increased by wiper blade oscillation, into the activation mode, where the oscillating number is increased by wiper blade oscillation, when the signals are inputted from the signal generating unit in a predetermined time period and by a predetermined number in the hibernation mode.