Exerciser having adjustable moving stroke

1. Field of the Invention

The present invention relates to a stationary exerciser, and more particularly to a stationary exerciser including an improved structure adjustable to different moving stroke for different users or according to the users\' requirement.

2. Description of the Prior Art

Typical stationary exercisers comprise a pair of foot supports or foot pedals including one end pivotally or rotatably attached or coupled to a base support with a pair of cranks, and including the other end slidably engaged on and supported by a pair of trails or tracks.

For example, U.S. Pat. No. 5,352,169 to Eschenbach discloses one of the typical exercise machines also comprising a base support including two rotatable cranks pivotally or rotatably attached or coupled to one end of two elongate pedals by crank pins, and the elongate pedals each include the other end slidably engaged on and supported by a trail or track.

However, the trails or tracks are stationarily disposed or supported on the base support and may not be adjust to different angular positions relative to the base support, such that the elongate pedals of the typical exercise machines may not be adjusted to different moving strokes.

U.S. Pat. No. 5,772,558 to Rodgers, Jr. discloses another apparatus also comprising two reciprocating members including one end pivotally or rotatably attached or coupled to a base with cranks and a pulley, and including the other end slidably engaged on and supported by rollers or slidably engaged with the lower portion of a frame.

However, similarly, the lower portion of the frame is also stationarily disposed or supported on the base and may not be adjusted or moved or tilted to different angular positions relative to the base such that the reciprocating members of the typical stationary exercise apparatus also may not be adjusted to different moving strokes.

U.S. Pat. No. 5,846,166 to Kuo discloses a further typical stepping exercise machine also comprising two foot supports including one end pivotally attached or coupled to a pair of handles respectively, and including the other end slidably engaged on and supported by a pair of tracks.

However, similarly, the tracks are also stationarily disposed or supported on the base and may not be adjust to different angular positions relative to the base such that the foot supports of the typical stationary exercise apparatus also may not be adjusted to different moving strokes.

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

The primary objective of the present invention is to provide an exerciser including an improved structure adjustable to different moving stroke according to the users\' requirement for allowing the users to conduct the stepping or walking exercise with different or suitable moving strokes.

In accordance with one aspect of the invention, there is provided an exerciser comprising a base, two rails pivotally attached to the base and rotatable relative to the base to different angular positions, two handles pivotally attached to the base and rotatable relative to the base, two foot supports each including a first end pivotally coupled to the handle, and each including a second end slidably engaged with the rail, a coupling device for coupling the handles to the foot supports respectively, and a tilting device for tilting the rails relative to the base to different angular positions.

The foot supports each include a foot pedal pivotally attached to the foot support with a pivot pin for allowing the foot pedal to be tilted relative to the foot support. The handles each include a lower portion, and the coupling device includes two levers pivotally coupling the lower portions of the handles to the foot pedals of the foot support respectively.

The levers each include a free end folded or bent relative to the lever and perpendicular to the lever and acted as a pivot rod for pivotally coupling to the foot pedal and offset from the pivot pin for allowing the foot pedal to be tilted relative to the foot support by the handles and the levers.

The tilting device includes a bolt rotatably attached to the base, and a motor coupled to the bolt for rotating the bolt relative to the base, and device for connecting the bolt to the rails. The connecting device includes a follower threadedly engaged with the bolt for being moved and adjusted along the bolt when the bolt is rotated by the motor.

The connecting device includes an arm pivotally attached to the base and having a rear end movable up and down relative to the base and pivotally coupled to the follower. The connecting device includes a coupler secured between the rails, and includes a seat extended from the coupler and pivotally coupling to the arm with such as a bar which may be pivotally coupled to a middle portion of the arm with such as a pivot pin.

The foot supports each include a roller attached to the second end of the foot support for slidably engaging with the rails. The rails each include two rods disposed parallel to each other, and a link securing the rods together.

Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.