Clothing treatment device

A laundry treating apparatus comprising:

• a cabinet defining an external appearance of the laundry treating apparatus;
• a drum located inside the cabinet, the drum having an open front surface and an open rear surface;
• a motor configured to generate a rotational force for rotating the drum;
• a rotating portion configured to be rotated by the rotational force of the motor;
• a connecting portion that connects the rotating portion and the drum to each other and is configured to transfer the rotational force of the motor to the drum through the rotating portion;
• a tensile portion disposed between the rotating portion and the drum and configured to adjust a tension of the connecting portion;
• a bracket that is connected to the rotating portion and rotatably supports the tensile portion;
• a first elastic member having a first end connected to the cabinet and a second end connected to the rotating portion or the bracket, the first elastic member being configured to rotate the rotating portion and the tensile portion in a first rotation direction based on rotation of the drum;
• and
• a rotation preventing portion configured to limit a rotation angle of the rotating portion and the tensile portion in the first rotation direction to be less than a predetermined rotation angle.