초록 ▼

An aerobic exercise device for simulating jump-roping in which there is provided a handle element and a tubular element rotatably coupled to an end of the handle element by a stretchable rubber member, which rubber member passes entirely through the hollow interior of the tubular member. Upon rotati

An aerobic exercise device for simulating jump-roping in which there is provided a handle element and a tubular element rotatably coupled to an end of the handle element by a stretchable rubber member, which rubber member passes entirely through the hollow interior of the tubular member. Upon rotation of the rubber member and tubular element together by the handle gripped by a person\s hand, the weight of the tubular element causes the rubber member to stretch because of centrifugal force to provide cushioning or shock absorption. A weight element is also provided about the outer circumference of the tubular element, which weight element is adjustably positionable along the tubular element via an o-ring that is snugly received in an open end of the weight element, so that the torque created during the revolving of the tubular element may be varied.

대표청구항 ▼

An aerobic exercise device comprising: a handle element having a first end and a second end; a tubular element having a first end and a second end; an elongated member having a first end rotatably mounted with respect to said handle element, and a second end, said elongated member being operatively

An aerobic exercise device comprising: a handle element having a first end and a second end; a tubular element having a first end and a second end; an elongated member having a first end rotatably mounted with respect to said handle element, and a second end, said elongated member being operatively coupled with said tubular element whereby said tubular element and said elongated member are rotatable together as a unit with respect to said handle element; means operatively associated with said first end of said elongated member for rotatably mounting said first end to said handle element; weight element means having a hollow interior for receiving therethrough a portion of said tubular element, said weight element means being positioned about the outer circumferential surface of said portion of said tubular element; and means for adjustably positioning said weight element means at a desired portion of said tubular element such that said weight element means is movable to any desired outer circumferential portion of said tubular element by the movement thereof along said outer circumferential surface; said elongated member comprising a longitudinal axis and being stretchable and flexible, so that, upon rotation thereof about said handle element, centrifugal force causes the stretching thereof along said longitudinal axis; said first end of said elongated member being thicker and wider than the remainder of said elongated member in order to provide stiffness so that upon rotation of said elongated member, wobbling is substantially prevented and rotation thereof is constrained substantially in a plane of rotation perpendicular to the longitudinal axis of said handle element; said elongated member extending substantially through the hollow interior of said tubular element.