Patent ID: 7179212

Claim:
An abdominal exerciser having a framework mounted with a moveable mechanism characterized in that the moveable mechanism has a main shaft end portion mounted with a leg-hooking module and a top face of the end of the main shaft is provided with a seat pad, and two lateral walls of the main shaft corresponding to a middle section of the seat pad is extended with a hollow inner clutching member, the end face of the hollow clutching member corresponding to one lateral side of the leg-hooking module is extended with an extended engaging block, and the interior of the inner clutching member is provided with a rod for pivotal mounting, and the framework includes a first supporting frame and a second supporting frame, and the top portion of the two ends of the first supporting frame is a first clutching member which is supported on a rod; and the first clutching member is mounted at the external side of the clutching member at the main shaft, the end faces of the two lateral sides of the first clutching member are formed into an extended engaging block which is different from the extended engaging block of the inner clutching member, and the top portion of the two ends of the second supporting frame is formed into the second clutching member which is pivotally mounted to the rod, and the second mounting member is mounted at the external sides of the first clutching member, and the second clutching member corresponding to the end face at one side of the first clutching member is formed into an extended engaging block; and the extended engaging block is different from that of the first clutching member.