Abstract: A swing chair includes: a support which is installed at a certain height or more above the floor; a main operation member elongated and having a virtual first rotation axis provided to the support at one side thereof and rotatably coupled to the support; a sub operation member elongated and having a virtual second rotation axis, provided to the support at one side thereof and spaced parallel to the first rotation axis, and rotatably coupled to the support; a seat portion coupled to any one of the main operation member and the sub operation member; and a rotation connecting member elongated and arranged in a front-rear direction and having a rear portion that is rotatably coupled to the other side of the main operation member and a front portion that is rotatably coupled to the other side of the sub operation member.

Abstract: A swing chair includes: a support which is installed at a certain height or more above the floor; a main operation member elongated and having a virtual first rotation axis provided to the support at one side thereof and rotatably coupled to the support; a sub operation member elongated and having a virtual second rotation axis, provided to the support at one side thereof and spaced parallel to the first rotation axis, and rotatably coupled to the support; a seat portion coupled to any one of the main operation member and the sub operation member; and a rotation connecting member elongated and arranged in a front-rear direction and having a rear portion that is rotatably coupled to the other side of the main operation member and a front portion that is rotatably coupled to the other side of the sub operation member.

Abstract: An independent electric power type speed race apparatus is disclosed. The independent electric power type speed race apparatus comprises a first health cycle comprising a first pedal, a first cycle rotary body rotating by handling of the first pedal, and a first cycle load driving part working as a load checking the rotation of the first cycle rotary body; a first cycle speed sensor sensing a rotation speed of the first cycle rotary body; a second health cycle comprising a second pedal, a second cycle rotary body rotating by handling of the second pedal, and a second cycle load driving part working as a load checking the rotation of the second cycle rotary body; a second cycle speed sensor sensing a rotation speed of the second cycle rotary body; a display plate installed at the front of the first health cycle and the second health cycle.

Abstract: There is disclosed a water play structure comprising play facilities to enable water-play, which includes a first storage tank having the play facilities provided therein, the first storage tank configured to receive water, a second storage tank connected with the first storage tank via a passage, and a cleaning unit provided in the passage provided between the first storage tank and the second storage tank, to purify the water supplied to the first storage tank from the second storage tank.