Exercise devices – Involving user translation or physical simulation thereof – Bicycling
Reexamination Certificate
2000-03-31
2001-08-14
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Bicycling
C188S164000
Reexamination Certificate
active
06273845
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a load applying device, and more particularly to a load applying device for exercisers.
2. Description of the Prior Art
U.S. Pat. No. 4,775,145 to Tsuyama discloses a typical load applying device for exercisers and comprises an electromagnetic mechanism for applying the brake torque to the rotating disc. The electromagnetic mechanism applies the brake torque to only a small peripheral portion of the rotating disc and thus may not uniformly apply the brake torque to the rotating disc.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional exerciser load applying devices.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a magnetic load applying device for adjusting the brake torque of the magnets applied to the rotating disc of the exercisers.
In accordance with one aspect of the invention, there is provided a magnetic load applying device comprising a spindle, a plate secured on the spindle, a rotating disc rotatably secured on the spindle and including a peripheral portion, at least one arm including a first end rotatably secured to the plate at a pivot pin, and including a second end, at least one magnet secured on the arm, and means for rotating the arm about the pivot pin to move and to adjust the magnet relative to the peripheral portion of the rotating disc and to adjust a brake torque applied onto the rotating disc.
The rotating means includes means for biasing the arm and the magnet toward the peripheral portion of the rotating disc; and includes a follower rotatably secured onto the spindle and coupled to the second end of the arm for rotating the arm about the pivot pin when the follower is rotated about the spindle; and includes at least one cable coupled between the follower and the second end of the arm for rotating the arm about the pivot pin.
The follower includes at least one extension extended radially outward therefrom and coupled to the second end of the arm for rotating the arm about the pivot pin. The plate includes at least one stud extended therefrom, the extension includes a groove formed therein for receiving the stud and for limiting a relative rotational movement between the follower and the plate.
The rotating means includes a block slidably received in the plate, a first cable coupled between the block and the follower, and a second cable coupled to the block for moving the block relative to the plate to rotate the follower about the spindle. A cover is further secured to the plate for retaining the arm and the other elements between the plate and the cover.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.
REFERENCES:
patent: 4775145 (1988-10-01), Tsuyama
patent: 5711404 (1998-01-01), Lee
patent: 5848953 (1998-12-01), Wei et al.
patent: 5851165 (1998-12-01), Wei et al.
Baxley, Esq Charles E.
Crow Stephen R.
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