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Stationary exerciser

Stationary exerciser description/claims

1. Field of the Invention

The present invention relates to a stationary exerciser, and more particularly to a stationary exerciser including an improved structure for allowing the front portion of the stationary exerciser to be moved up and down in a reciprocating action.

2. Description of the Prior Art

Typical stationary exercisers comprise a pair of foot supports or foot engaging links each having a rear end supported for rotational motion about a pivot axis and a front end guided in a reciprocal path of travel and for allowing the foot engaging links to move in an elliptical moving stroke.

For example, U.S. Pat. No. 5,242,343 to Miller discloses one of the typical stationary exercisers comprising a combination of foot link motions permitting the users foot to travel in an inclined, oval path of travel, and two foot engaging links each having a front end guided in a reciprocal path of travel.

However, the front ends of the foot engaging links are guided to move in a reciprocal path of travel that is determined by the sliding engagement between the front ends of the foot engaging links and the tracks.

U.S. Pat. No. 5,759,135 to Chen discloses another typical stationary exerciser comprising a pair of tubes rotatably secured to two arms of a crank, and two levers slidably engaged in the tubes for allowing the tubes to move forward and rearward and upward and downward in an elliptical moving stroke.

However, the sliding engagement between the tubes and the levers is weak and may be easily damaged.

U.S. Pat. No. 5,759,136 to Chen discloses a further typical stationary exerciser comprising a pair of beams each having a front end pivotally coupled to a post with a lever for swinging relative to the post, and a rear end supported for rotational motion about a pivot axis and for allowing the beams to move in an elliptical moving stroke.

However, the movement of the front ends of the beams is determined by the downwardly dependent levers.

U.S. Pat. No. 6,135,926 to Lee discloses a still further typical stationary exerciser comprising a pair of foot supports each having a front end pivotally coupled to a rotatable crank and each having a rear end supported for swinging motion about an upper pivot rod and for allowing the foot supports to move in an elliptical moving stroke.

However, the cranks may not be solidly coupled to the arms for the handles.

U.S. Pat. No. 7,041,036 to Kuo discloses a still further typical stationary exerciser comprising a pair of foot supports each having a front end pivotally coupled to a downwardly dependent bar with a complicated coupling mechanism and a rear end supported for rotational motion about a pivot axis and for allowing the beams to move in an elliptical moving stroke.

However, the typical stationary exerciser comprises a complicated structure that may not be easily assembled and that may include a greatly increased manufacturing cost.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional stationary exercisers.

The primary objective of the present invention is to provide a stationary exerciser including an improved structure for allowing the front portion of the stationary exerciser to be moved up and down in a reciprocating action.

The other objective of the present invention is to provide a stationary exerciser including an improved structure for allowing the stationary exerciser to be made with a greatly decreased manufacturing cost and for allowing the stationary exerciser to be easily assembled.

In accordance with one aspect of the invention, there is provided a stationary exerciser comprising a base including an upright support extended upwardly therefrom, two handles each including an upper portion pivotally coupled to the upright support with a spindle for allowing the handles to be pivoted and swung relative to the upright support of the base, and each including a hand grip extended upwardly therefrom, and each including an arm extended outwardly therefrom for allowing the arms to be moved up and down in a reciprocating action relative to the upright support of the base, and each including a lower portion, two foot supports each including a front portion and a rear portion, the rear portions of the foot supports being arranged to be moved in a reciprocating action relative to the base, a coupling device for coupling the front portions of the foot supports to the arms of the handles, and two links pivotally coupled between the lower portions of the handles and the foot supports respectively for maintaining the arms and the handles and the foot supports in position and for allowing the arms of the handles and the foot supports to be moved in a curved moving stroke relative to the base.

The foot supports each include an opening formed in the front portion thereof for slidably receiving the links. The links are pivotally coupled to the lower portions of the handles with pivot joints.

The base includes a spindle provided on the upright support for pivotally supporting the handles. The handles are pivotally secured to the spindle with barrels and the arms are extended outwardly from the barrels.

The coupling device includes two tubes pivotally coupled to the front portions of the foot supports respectively, and two shanks coupled between the tubes and the arms of the handles respectively. The shanks are adjustably coupled to the arms of the handles respectively, and/or the shanks are adjustably coupled to the tubes respectively.

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• Utility Patent

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