Patent ID: 7955233

Claim:
An abdomen exercising device, comprising: a soft cushion; a base combined with the cushion; a sliding unit slidably mounted on the base; an elastic cord biased between the base and the sliding unit to provide a damping force to the sliding unit; and a top cover mounted on the base to cover the elastic cord and to partially cover the sliding unit; wherein the base has a platform; the platform of the base has a top face formed with two opposite first support rails and a receiving space defined between the two first support rails; each of the two first support rails of the platform extends upward and has a top formed with a first slideway; the abdomen exercising device further comprises a support rod rotatably mounted in the receiving space of the platform; the top cover has a bottom face formed with two opposite second support rails aligning with the two first support rails of the platform respectively; each of the two second support rails of the top cover has a bottom formed with a second slideway aligning with the first slideway of a respective one of the two first support rails; the top cover has two opposite sides each formed with a cutout; the sliding unit includes: a shaft movably mounted between the base and the top cover and having two opposite ends each extending through and protruding outward from the cutout of the top cover; a movable rod rotatably mounted on the shaft and received in the receiving space of the platform; two rollers each rotatably mounted on the shaft and each movable in the first slideway of a respective one of the two first support rails and the second slideway of a respective one of the two second support rails; and two handgrips mounted on the two opposite ends of the shaft respectively and protruding outward from the base and the top cover; the elastic cord passes through and is wound around the support rod and the movable rod of the sliding unit; the elastic cord has two distal ends secured on the platform of the base.