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A support frame for an exercise apparatus includes a base providing a fulcrum, and a moving arm member having a rotating portion located at one end thereof, and a swinging portion located at an opposite end thereof and equipped with a seat unit. The rotating portion is equipped with a wheel pedal un

A support frame for an exercise apparatus includes a base providing a fulcrum, and a moving arm member having a rotating portion located at one end thereof, and a swinging portion located at an opposite end thereof and equipped with a seat unit. The rotating portion is equipped with a wheel pedal unit and is rotatably supported on the fulcrum of the base. The swinging portion is swingable on the center of the rotating portion between a high position located far apart from the base, and a low position located in closer proximity to the base. The support frame is configurable to change the elevation difference between the seat unit and the wheel pedal unit in both a vertical direction and a horizontal direction. Thus, the elevation difference is relatively changed by means of moving the moving arm member relative to the base. This causes the relative position between the wheel pedal unit and the seat unit to change for allowing the user to exercise in a normal upright, or elevated, sitting exercise mode or a recumbent sitting exercise mode.

대표청구항 ▼

1. A support frame mounted in an exercise apparatus comprising a wheel pedal unit for pedaling by the legs of a user and a seat unit for the sitting of the user using the exercise apparatus, the support frame comprising: a base having at least one fulcrum;a moving arm member comprising a rotating po

1. A support frame mounted in an exercise apparatus comprising a wheel pedal unit for pedaling by the legs of a user and a seat unit for the sitting of the user using the exercise apparatus, the support frame comprising: a base having at least one fulcrum;a moving arm member comprising a rotating portion located at one end thereof and rotatably supported on said at least one fulcrum of said base, and a swinging portion located at an opposite end thereof, said rotating portion having said wheel pedal unit installed therein, said swinging portion having said seat unit installed therein, said swinging portion being swingable on a center of said rotating portion and configured to swing between a high position and a low position to change the distance difference between said seat unit and said wheel pedal unit in both a vertical direction and a horizontal direction; anda handle assembly pivotally connected directly to the rotating portion of the moving arm member; wherein said base comprises a body, and two rail supports located at a top side of said body and spaced apart from each other at a predetermined distance to form said at least one fulcrum; said rotation portion of said moving arm member comprises an arched wall extending around an axis and two rails extending along said arched wall and respectively slidably coupled to said rail supports. 2. The support frame as claimed in claim 1, wherein said moving arm member further comprises four stop blocks respectively located at each of two opposite ends of each of said two rails for stopping against said rail supports when said swinging portion reaches one of said high position and said low position. 3. The support frame as claimed in claim 1, wherein the handle assembly is biasable relative to said moving arm member between a first position where said handle assembly is attached to said moving arm member and a second position where said handle assembly defines a predetermined contained angle with said moving arm member. 4. The support frame as claimed in claim 3, wherein said moving arm member comprises a recessed portion facing toward and fitting said handle assembly; said handle assembly comprises a retractable support pivotally connected to said rotating portion of said moving arm member, and a handlebar connected to said retractable support, said retractable support being receivable in said recessed portion of said moving arm member. 5. The support frame as claimed in claim 4, wherein said retractable support of said handle assembly comprises a sleeve pivotally connected to said rotating portion of said moving arm member, and an inner bar movable in and out of said sleeve and connected to said handlebar. 6. The support frame as claimed in claim 4, wherein said handlebar comprises two backwardly extending grips, said two backwardly extending grips defining therebetween a gap larger than the width of a seat cushion so that said two backwardly extending grips are disposed at two opposite lateral sides relative to said seat unit when said handle assembly is in said first position. 7. The support frame as claimed in claim 1, wherein said swinging portion of said moving arm member comprises a connection means located at one end thereof; said seat unit comprises a mounting portion located at a bottom side thereof and pivotally coupled to said connection means. 8. The support frame as claimed in claim 7, wherein said connection means includes a recess; said mounting portion is a protruded member pivotally coupled to said recess. 9. The support frame as claimed in claim 8, further comprising a quick release pivotally inserted through said connection means and said mounting portion and operable to lock said connection means and said mounting portion in place. 10. The support frame as claimed in claim 1, wherein when said seat unit is moved with said swinging portion of said moving arm member far from said base, the distance difference between said swinging portion and said rotating portion is maximized in the vertical direction and minimized in the horizontal direction; and when said seat unit is moved with said swinging portion of said moving arm member toward said base, the distance difference between said swinging portion and said rotating portion is minimized in the vertical direction and maximized in the horizontal direction. 11. A support frame mounted in an exercise apparatus comprising a wheel pedal unit for pedaling by the legs of a user and a seat unit for the sitting of the user using the exercise apparatus, the support frame comprising: a base comprising an upright working as a fulcrum, said upright having said wheel pedal unit installed therein;a moving arm member comprising a rotating portion located at one end thereof and pivotally coupled to said upright support and a swinging portion located at an opposite end thereof, said rotating portion being rotatably supported on said fulcrum of said upright support, said swinging portion having said seat unit installed therein, said swinging portion being swingable on a center of said rotating portion between a high position located far from said base and a low position located close to said base to change the distance difference between said seat unit and said wheel pedal unit in both a vertical direction and a horizontal direction; anda handle assembly pivotally connected directly to the rotating portion of the moving arm member. 12. The support frame as claimed in claim 11, wherein the handle assembly is biasable relative to said moving arm member between a first position where said handle assembly is attached to said moving arm member and a second position where said handle assembly defines a predetermined contained angle with said moving arm member. 13. The support frame as claimed in claim 12, wherein said moving arm member comprises a recessed portion located at one side thereof and facing toward and fitting said handle assembly; said handle assembly comprises a retractable support pivotally connected to said rotating portion of said moving arm member, and a handlebar connected to said retractable support, said retractable support being receivable in said recessed portion of said moving arm member. 14. The support frame as claimed in claim 13, wherein said retractable support of said handle assembly comprises a sleeve pivotally connected to said rotating portion of said moving arm member, and an inner bar movable in and out of said sleeve and connected to said handlebar. 15. The support frame as claimed in claim 14, wherein said handlebar comprises two backwardly extending grips, said two backwardly extending grips defining therebetween a gap larger than the width of a seat cushion so that said two backwardly extending grips are disposed at two opposite lateral sides relative to said seat unit when said handle assembly is in said first position. 16. The support frame as claimed in claim 11, wherein said swinging portion of said moving arm member comprises a connection means located at one end thereof; said seat unit comprises a mounting portion located at a bottom side thereof and pivotally coupled to said connection means. 17. The support frame as claimed in claim 16, wherein said connection means includes a recess; said mounting portion is a protruded member pivotally coupled to said recess. 18. The support frame as claimed in claim 16, further comprising a quick release pivotally inserted through said connection means and said mounting portion and operable to lock said connection means and said mounting portion in place. 19. The support frame as claimed in claim 11, wherein when said seat unit is moved with said swinging portion of said moving arm member far from said base, the distance difference between said swinging portion and said rotating portion is maximized in the vertical direction and minimized in the horizontal direction; and when said seat unit is moved with said swinging portion of said moving arm member toward said base, the distance difference between said swinging portion and said rotating portion is minimized in the vertical direction and maximized in the horizontal direction.