Patent ID: 8827108

Claim:
A cup holder, comprising: a main body having a housing portion for housing a container; a lid body movably provided in the main body, and opening and closing an opening of the housing portion; a side wall member provided so as to be capable of moving up and down inside the housing portion, and supporting a side portion of the container housed inside the housing portion; and a conversion mechanism converting an opening and closing movement of the lid body to an up-and-down movement of the side wall member, wherein the conversion mechanism comprises: a supporting arm supporting the lid body; a first rack provided along a height direction of the main body, engaging a first gear provided in an end portion of the supporting arm, and opening and closing the lid body while the first gear is being rotated; and a second rack provided in the side wall member, engaging the first gear, and moving the side wall member up and down by a rotation of the first gear.