| 摘要 |
PURPOSE: A swing is provided, which is capable of reciprocating movement by turning a seat plate over forward and backward by kinematical design. CONSTITUTION: A swing comprises a pair of frames(110) which are separated from each other; a rotary shaft(140) which is freely rotated while being combined in order to cross the top of the frame; a longitudinal rod(150) which is expanded to the bottom from both sides of the rotary shaft; a seat plate(160) which is pivotally installed to the bottom of the longitudinal rod; a mounting plate in which the longitudinal rod is hinge-coupled with the bottom part; and a rear stopper(170) and a front stopper(180) which limit the front and back turning angle of the seat plate. |
