Patent ID: 8384329

Claim:
A wiper system comprising: a wiper that is pivotably supported to swing over a wiping subject surface and thereby to wipe the wiping subject surface; an electric motor that has an output shaft, which is connected to the wiper to transmit a rotational force of the electric motor to the wiper, wherein the electric motor drives the wiper to execute a reciprocal swing operation of the wiper between an upper return position and a lower return position upon forward and backward rotations of the output shaft; an entering means for entering one of a plurality of operational commands of the wiper to execute a corresponding one of a plurality of operational modes of the wiper, wherein the plurality of the operational modes includes a continuous operational mode to continuously reciprocally swing the wiper and an intermittent operational mode to intermittently reciprocally swing the wiper; and a control means for controlling the electric motor, wherein: the control means controls the electric motor to continuously reciprocally swing the wiper between the upper return position and the lower return position as long as the operational command for executing the continuous operational mode is outputted from the entering means to the control means; and the control means controls the electric motor such that the wiper is reciprocally swung between the upper return position and a predetermined position while stopping the wiper for a predetermined time period at the predetermined position upon arrival of the wiper at the predetermined position as long as the operational command for executing the intermittent operational mode is outputted from the entering means to the control means, and the predetermined position is located on an outer side of the lower return position that is opposite from the upper return position in a swing direction of the wiper and at which an influence of a wind pressure applied to the wiper is smaller in comparison to the lower return position.