US Patent 10506890 Cup holder

A cup holder includes a holder body having a peripheral wall surrounding an accommodation space, a tray provided in the accommodation space and vertically shiftably supported by the peripheral wall, and a height adjuster configured to vertically shift the tray. The height adjuster includes at least one rack gear extending vertically on the peripheral wall, at least one pinion gear rotatably supported by the tray and meshing with the rack gear, and an energizing member provided at the tray and energizing to rotate the pinion gear for upward shift of the tray.