BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retainer structure that is fixed to a headliner of a vehicle so that a sun visor can be easily attached and detached.;According to the present invention, the detachable retainer is formed so as to be rotatable while being coupled with the torsion spring by a shaft rod, a knob, or the like, so that even if a temperature change such as during winter or summer, So that the separation can be smoothly and easily performed.
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