Patent ID: 8607843

Claim:
A sunshade device for shading a window of a vehicle, comprising: a sunshade; a stay to which one edge of said sunshade is fixed; a hollow windup shaft to which the other edge of said sunshade is fixed; a first support member supporting one end of said windup shaft to rotate relative thereto and move relative thereto in a longitudinal direction of said windup shaft, and mounted at a predetermined position of said vehicle; a second support member supporting the other end of said windup shaft to rotate relative thereto and move relative thereto in the longitudinal direction of said windup shaft, and mounted at another predetermined position of said vehicle; and a biasing member configured to pivotally bias said windup shaft against said second support member in the windup direction of said sunshade, wherein: said windup shaft includes a restricted portion at the other end thereof; said second support member includes a rotation restricting portion and a rotation releasing portion formed to be adjacent to each other in the longitudinal direction of said windup shaft, said rotation restricting portion restricting the operation of said restricted portion so as not to allow the rotation of said windup shaft relative thereto, said rotation releasing portion releasing the operation of said restricted portion so as to allow the rotation of said windup shaft relative thereto; and said windup shaft moves relative to said second support member in the longitudinal direction to restrict or release the rotation of said windup shaft, wherein said second support member is configured such that a spindle portion and a mounting portion are integrally formed therein, said spindle portion being inserted into said windup shaft, to which the other end of said biasing member is fixed, said mounting portion being continuous from a proximal end side of said spindle portion and being mounted at said predetermined position of said vehicle; wherein said rotation restricting portion and said rotation releasing portion are formed in said spindle portion such that said rotation releasing portion is adjacent to said mounting portion side of said rotation restricting portion, wherein said rotation releasing portion is a recess formed along a peripheral direction in an outer peripheral portion of said spindle portion, and said rotation restricting portion is a groove portion that is continuous from a part of said recess and is formed helically in the outer peripheral portion of said spindle portion; and wherein said restricted portion is a projection that projects toward the inside of said windup shaft, is disposed in said recess and said groove portion, and moves in said recess and said groove portion.