| 摘要 |
A reduction device of the roll rotation mode mosquito net is provided to completely prevent impact and noise during the operation of the mosquito net from being generated by preventing the mosquito net from being rapidly wound around the axis of rotation. A reduction rotating body(12) having the diameter which is in accord with the inside diameter of the axis of rotation is inserted into the axis of rotation and is fixed with one end of the tie bar. The reduction rotating body is geared with a bonding groove(14a) of spring support body in which the torsion spring wound in the tie bar is installed, and a coupling projection of the axis of the rotation. The reduction rotating body controls the speed of rotation of the axis of rotation which is reversely rotated by the elastic force by the twisting compression of the torsion spring axis of rotation. The elastic force of the torsion spring is appropriately controlled when the mosquito net is opened while the mosquito net is wound around the axis of rotation of the top housing frame. |
