Exercise devices – User manipulated force resisting apparatus – component... – Utilizing force resistance generated by user only
Reexamination Certificate
1999-09-09
2001-05-22
Yu, Justine R. (Department: 3764)
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing force resistance generated by user only
C482S072000, C482S095000, C482S096000, C482S135000, C482S907000
Reexamination Certificate
active
06234942
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a compound exerciser unit, and more particularly, to one that allows various combinations of exercise by adjusting the extent of opening between a twin-wheel push rod and a support bar, separating a curved bar handle at the lower end of a mobile arm from a telescoping tube in a U-shape bar, and taking advantage of a pivoting status achieved between an axis and a T-shape connection member.
2. Description of the Prior Art
Whereas, a rower generally available in the market relates to railings mounted on a frame with a sliding seat while oars are provided respectively to both sides of the frame so that the user exercises by swinging the oars for a certain extent against the hydraulic resistance applied from a cylinder inside the oar. However, said rower for providing only simulation of rowing a boat against a hydraulic resistance as the user slides himself forward and backward by applying at the same time both pushing and pulling by his both hands and feet, is limited in its use and exercise results, not is not practical.
SUMMARY OF THE INVENTION
The primary purpose of the present invention is to provide a compound exerciser unit by providing an extension spring on an axis inside a linkage pivoted to a U-shape bar of a fork, another end of said extension spring is provided at the bottom of the body of the support bar to facilitate the restoration to normal status of both a twin-wheel push rod and the support bar while pushing forward the fork pivoted to the twin-wheel for extension exercise; furthermore, a curved bar handle provided at the lower end of a mobile arm can be separate from a telescoping tube in the U-shape bar so that the user may do push-ups and rowing at the same time by taking advantage of a pivoting status permitted between a shaft and a T-shape connection member.
Another purpose of the present invention is to provide a structure of a compound exerciser unit in a structure that permits adjustment of resistance by a rotation threaded bolt penetrating the upper section of a connection post, a joint is connected by threads to said rotation bolt, so that when the rotation bolt turns, vertical adjustment can be made. While pushing the mobile arms, the opening tension between the support bar and the twin-wheel push rod can be adjusted depending on the force to be applied at own discretion of the user.
Another purpose yet of the present invention is to provide a compound exerciser unit that allows space-saving when not in use by folding up the mobile pivot at the base to cling to the support bar.
REFERENCES:
patent: 5429568 (1995-07-01), Chen
patent: 5520599 (1996-05-01), Chen
patent: 5584784 (1996-12-01), Wu
patent: 5722918 (1998-03-01), Lee
patent: 6001051 (1999-12-01), Chran-Pin
Dougherty & Troxell
Hwang Victor
Yang Cheng-hui
Yu Justine R.
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