Holder and structure for organizing excess length

An excess length organizing holder comprising:

• a baseboard which has a rotation axis vertical to a fixed plane;
• a spool which has a flange whose edge is provided with two incisions and a winding portion, and rotates around the rotation axis in a state where a cable is folded by way of the winding portion and the two incisions, thereby winding the cable twofold around the winding portion;
• and
• anti-reverse rotation means which stops a rotation in a reverse direction to a winding direction of the spool.

An excess length organizing structure comprising:

• a door detachable from a box-shaped rack;
• a mounting hardware which connects the door to the rack and pivots on one side so as to make the door openable and closable;
• and
• at least one excess length organizing holder, comprising a baseboard which has a rotation axis vertical to a fixed plane, and a spool which has a flange whose edge is provided with two incisions and a winding portion, and rotates around the rotation axis in a state where a cable is folded by way of the winding portion and the two incisions, thereby winding the cable twofold around the winding portion;
• the baseboard of the excess length organizing holder is attached on a surface of the door when the door is attached to the mounting hardware.