US Patent 11033768 Restoring mechanism and exercising device

A restoring mechanism for providing a restoring force to an exercising device which includes a fixing structure and a wheel is provided. The restoring mechanism includes a restoring set, a driving set and a connecting set. The restoring set includes a fixed portion and a link-up portion. The fixed portion is connected to the fixing structure. The driving set is connected to the link-up portion. The connecting set is selectively coupled to the driving set. When the connecting set is coupled to the driving set, rotation of the wheel causes the driving set to drive the restoring set such that the restoring set is allowed to accumulate energy.