Lifter

A lifter that is detachably disposed on a ceiling, the lifter comprising:

• a frame that includes a loading part on which a product is placed, the frame formed to be transportable;
• a motor part coupled to the frame;
• a drum rotatably coupled to the motor part and including a plurality of winding parts formed at regular intervals along a rotary shaft direction;
• a plurality of wires connected to be wound around the plurality of winding parts, respectively, and
• a plurality of connection members formed to be detachably fixable to the ceiling;
• wherein one end of each of the plurality of wires is connected to a respective one of the plurality of winding parts, and another end of each of the plurality of wires is detachably fixable to each of the plurality of connection members,
• wherein the motor part and the drum are disposed below a center of the frame under the loading part,
• wherein when the frame is positioned on a floor, the plurality of connection members are detachably fixed to the ceiling,
• wherein when the drum rotates in one direction, the plurality of wires are wound on the plurality of winding parts of the drum so that the frame, in which the motor part and the drum are disposed, moves up to be close to the ceiling, and when the drum rotates in a direction opposite to the one direction, the plurality of wires are unwound from the plurality of winding parts of the drum so that the frame moves down and positioned on the floor.