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A resistance training exercise device includes a stretchable cord having an internal cavity and a governor in the form of a limit band situated within that cavity and including first and second end segments. A retaining member attaches each of the end segments to the cord so as to impart stretching

A resistance training exercise device includes a stretchable cord having an internal cavity and a governor in the form of a limit band situated within that cavity and including first and second end segments. A retaining member attaches each of the end segments to the cord so as to impart stretching motion to the limit band when the cord is stretched during exercising. The retaining members provided at each end of the limit band each include a cup-shaped outer member and an inner, member having an outer peripheral surface. Each end segment of the limit band is positioned through an opening in the cup-shaped outer member and is secured to the inner member.

대표청구항 ▼

1. An exercise device comprising: a stretchable cord having opposing first and second ends, said cord having an internal cavity and an external surface;a flexible tether adjacent each of said first and second ends, each of said tethers including a compartment in which said first and second ends, res

1. An exercise device comprising: a stretchable cord having opposing first and second ends, said cord having an internal cavity and an external surface;a flexible tether adjacent each of said first and second ends, each of said tethers including a compartment in which said first and second ends, respectively, of said cord are retained;a retaining member within said internal cavity adjacent each of said first and second ends and being located within the compartment of an adjacent tether;a sleeve attached to said cord adjacent each of said first and second ends, at least a portion of said sleeve being within the compartment of an adjacent tether, each of said retaining members being in the compartment of an adjacent tether and being located within a length of said sleeve located within said compartment of said adjacent tether;a governor including a limit band situated within the internal cavity of said stretchable cord and including opposed, first and second end segments;said retaining members aiding in retaining the cord within the tethers and in retaining the opposed first and second end segments of the limit band in a position within the cord to stretch or move with the cord as said cord is being stretched during exercising, said limit band limiting the distance that the cord can be stretched;said retaining members each including a cup-shaped outer member and an inner member having an outer peripheral surface, each of said cup-shaped members having a peripheral wall having an inner surface and a passage through which a respective end segment of the limit band extends; each of said end segments of the limit band being secured against movement to the inner member of a respective retaining member, said inner member of each of said retaining members being retained completely within an inner compartment of a respective cup-shaped member for maintaining said inner member in proper position to move with said cord, said cup-shaped member engaging said cord to expand the cord outwardly and thereby aid in retaining the limit band secured for movement with the cord. 2. The exercise device of claim 1, wherein said inner member is generally ball-shaped. 3. The exercise device of claim 2, wherein said cup-shaped member and said ball-shaped member are rigid, said outer peripheral surface of the ball-shaped member being in frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member to firmly retain the ball-shaped member and the end segment of the limit band secured thereto against relative movement to said stretchable cord when the cord is being stretched during exercising. 4. The exercise device of claim 3, wherein said generally ball-shaped member of each retaining member is substantially oblong having a generally cylindrical central segment and opposed end segments, said central segment having an outer peripheral surface providing frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member. 5. The exercise device of claim 2, wherein said generally ball-shaped member of each of said retaining members includes a channel in said outer peripheral surface thereof, each of said end segments of said limit band being retained within a channel of a respective ball-shaped member when secured to said respective ball-shaped member. 6. The exercise device of claim 5, wherein said cup-shaped member and said ball-shaped member are rigid, said outer peripheral surface of the ball-shaped member being in frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member to firmly retain the ball-shaped member and the end segment of the limit band secured thereto against relative movement to said stretchable cord when the cord is being stretched during exercising. 7. The exercise device of claim 2, wherein said generally ball-shaped member of each of said retaining members includes a channel in said outer peripheral surface thereof, each of said end segments of said limit band being retained within a channel of a respective ball-shaped member when secured to said respective ball-shaped member by being wrapped multiple times about said respective ball-shaped member within said channel. 8. The exercise device of claim 7, wherein said cup-shaped member and said ball-shaped member are rigid, said outer peripheral surface of the ball-shaped member being in frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member to firmly retain the ball-shaped member and the end segment of the limit band secured thereto against relative movement to said stretchable cord when the cord is being stretched during exercising. 9. The exercise device of claim 3, wherein said generally ball-shaped member of each of said retaining members includes a channel in said outer peripheral surface thereof, each of said end segments of said limit band being retained within a channel of a respective ball-shaped member when secured to said respective ball-shaped member by being wrapped multiple times about said respective ball-shaped member within said channel and then knotted to said limit band. 10. The exercise device of claim 3, wherein said generally ball-shaped member of each retaining member is substantially oblong having a generally cylindrical central segment and opposed end segments, said central segment having an outer peripheral surface providing frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member, wherein said substantially oblong member includes a channel in said outer peripheral surface of both said central segment and opposed end segments thereof, each of said end segments of said limit band being retained within a channel of a respective ball-shaped, oblong member when secured to said respective ball-shaped, oblong member. 11. The exercise device of claim 3, wherein said generally ball-shaped member of each retaining member is substantially oblong having a generally cylindrical central segment and opposed end segments, said central segment having an outer peripheral surface providing frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member, wherein said substantially oblong member includes a channel in said outer peripheral surface of both said central segment and opposed end segments thereof, each of said end segments of said limit band being retained within a channel of a respective ball-shaped, oblong member when secured to said respective ball-shaped, oblong member by being wrapped multiple times about said respective ball shaped, oblong member within said channel. 12. The exercise device of claim 3, wherein said generally ball-shaped member of each retaining member is substantially oblong having a generally cylindrical central segment and opposed end segments, said central segment having an outer peripheral surface providing frictional engagement with the inner surface of the peripheral wall of a respective cup-shaped member, wherein said substantially oblong member includes a channel in said outer peripheral surface of both said central segment and opposed end segments thereof, each of said end segments of said limit band being retained within a channel of a respective ball-shaped, oblong member when secured to said respective ball-shaped, oblong member by being wrapped multiple times about said respective ball shaped, oblong member within said channel and then knotted to said limit band. 13. The exercise device of claim 3, wherein said limit band of said governor is substantially non-elastic and is in a retracted, crunched condition within said stretchable cord when said cord is in an unstretched condition, said cord being elastically stretchable to a length at which the limit band is in a fully extended condition. 14. The exercise device of claim 13, wherein said limit band of said governor is a multifilament polymer strand. 15. The exercise device of claim 4, wherein said limit band of said governor is substantially non-elastic and is in a retracted, crunched condition within said stretchable cord when said cord is in an unstretched condition, said cord being elastically stretchable to a length at which the limit band is in a fully extended condition. 16. The exercise device of claim 15, wherein said limit band of said governor is a multifilament polymer strand. 17. The exercise device of claim 6, wherein said limit band of said governor is substantially non-elastic and is in a retracted, crunched condition within said stretchable cord when said cord is in an unstretched condition, said cord being elastically stretchable to a length at which the limit band is in a fully extended condition. 18. The exercise device of claim 17, wherein said limit band of said governor is a multifilament polymer strand. 19. The exercise device of claim 8, wherein said limit band of said governor is substantially non-elastic and is in a retracted, crunched condition within said stretchable cord when said cord is in an unstretched condition, said cord being elastically stretchable to a length at which the limit band is in a fully extended condition. 20. The exercise device of claim 9, wherein said limit band of said governor is substantially non-elastic and is in a retracted, crunched condition within said stretchable cord when said cord is in an unstretched condition, said cord being elastically stretchable to a length at which the limit band is in a fully extended condition.