PURPOSE: To enlarge a wiping area of a longitudinally long windshield glass by constituting a device so as to perform linear reciprocating motion of a wiper arm attached to a second oscillation moving means together with turning of a first and the second oscillation moving means when reciprocation oscillating motion is input from a wiper drive source.

CONSTITUTION: This wiper device S for a vehicle is constituted of a wiper drive source M, a first and a second oscillating mechanisms 1, 2, and a wiper arm 3 attached to the second oscillating mechanism 2, and the wiper drive source M is constituted of a wiper motor 50 and a drive link mechanism 51. The first oscillating mechanism 1 is what connected to the wiper drive source M and generating reciprocating motion in a specified angle, equipped with a planetary gear mechanism 5 and the like, and turning quantity enlarged turning angle of a fixed gear wheel 13 in a specified quantity is transmitted to an output shaft 18. Moreover, the second oscillating mechanism 2 is constituted of a first and a second gear transmitting mechanisms 21, 22, a link mechanism 23, a linear motion converting mechanism 24, and the like, and oscillating motion of an oscillating arm 34a following to rotation of an output gear wheel 31b is transmitted to one end of the wiper arm 3 via a connecting rod 34b.