Exercise devices – Involving user translation or physical simulation thereof – Treadmill for foot travel
Reexamination Certificate
2001-05-21
2003-03-18
Lucchesi, Nicholas D. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Treadmill for foot travel
C482S072000
Reexamination Certificate
active
06533707
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a folding mechanism for an exercise treadmill, and more particularly, an exercise treadmill whose frame can be folded or unfolded by moving the handrail. Therefore, the using convenience and safety is ensured.
2. Description of the Prior Art
The frame of the conventional treadmill (for example, the disclosed U.S. Pat. Nos. 5,674,453, and 6,033,347) is designed to be foldable in order to reduce the occupied space and facilitate the movement thereof. However, these products have to include an auxiliary lifting member (like pneumatic or oil-pressurized cylinder) behind the frame in order to prevent the frame from an unexpected collapse endangering the operator or the others around. Accordingly, the whole design and use show much inconvenience.
Moreover, this conventional design doesn't fit the old or the disabled because they have much difficulty in bending down to perform the folding movement.
SUMMARY OF THE INVENTION
It is a primary object of the present invention to remove the above-mentioned drawbacks and to provide a folding mechanism for an exercise treadmill through which the operator doesn't need to bend down to perform the folding movement of the frame. Furthermore, the frame can be folded to the top at an automatic locking position by means of components of connection rods, pull rods and corresponding pivots for achieving a full safety for operators and people around.
REFERENCES:
patent: 3731917 (1973-05-01), Townsend
patent: 5674453 (1997-10-01), Watterson et al.
patent: 6033347 (2000-03-01), Daleabout et al.
patent: 6077200 (2000-06-01), Lin
patent: 6273842 (2001-08-01), Wang et al.
Wang Leao
Wu Peter
Amerson Lori Baker
Chiu Kuo-Hsiung
Lucchesi Nicholas D.
Troxell Law Office PLLC.
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