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    • 2. 发明公开
    • EXERCISE CHAIR
    • US20230284787A1
    • 2023-09-14
    • US18178034
    • 2023-03-03
    • PING-YU LIU
    • PING-YU LIU
    • A47C15/00A47C7/18
    • A47C15/004A47C7/18
    • An exercise chair includes a seat assembly, a backrest, a movable supporting member, a position-limiting device, and a resilient position-restoring element. The backrest is pivotally connected to a pivotal connection portion of the seat assembly. The movable supporting member includes a roller for contact with the ground and is pivotally connected to the backside of the backrest. When the tilted state of the backrest is changed, the movable supporting member changes the position at which the ground is in contact with the roller, lest the exercise chair tip over backward. The position-limiting device is connected between the pivotal connection portion and the movable supporting member to adjust and limit the aforesaid contact position. Should the position-limiting device fail, a second position-limiting device provided on the backrest can prevent the exercise chair from falling backward. The resilient position-restoring element helps restore the exercise chair to its most compact configuration.