Patent ID: 8235261

Claim:
A foldable coat hanger, comprising: a hook unit having a hook in an upper part thereof; a housing unit with which the hook unit is assembled such that the hook unit can be moved upwards or downwards vertically; and a pair of hanging arms rotatably assembled with opposite sides of the housing unit, wherein the hook unit comprises: a control gear connected to a lower end of the hook and extending in an axial direction, with a plurality of teeth formed along a side edge of the control gear in the axial direction; a rack gear connected to a lower end of the control gear and extending in the axial direction, with a plurality of teeth formed along each of opposite side edges of the rack gear in the axial directions; and an actuating unit removably caught by one of the teeth of the control gear and stopping a position of the control gear, the housing unit comprises: two first pinion gears symmetrically provided in the housing unit at locations in opposite sides of the rack gear and rotatably engaging with the teeth formed along the opposite side edges of the rack gear, and the two hanging arms are rotatably fitted over respective bearing shafts provided at opposite locations inside the housing unit and extend outwards from the housing unit while being bent toward each other, with second pinion gears formed around respective ends of the two hanging arms fitted over the bearing shafts and rotatably engaging with the respective first pinion gears.