Exercise devices – Involving user translation or physical simulation thereof – Bicycling
Reexamination Certificate
1999-09-29
2001-11-27
Yu, Mickey (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Bicycling
C482S061000, C472S095000, C472S103000, C472S135000
Reexamination Certificate
active
06322480
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to indoor bicycles for physical exercise, and more particularly to indoor bicycles whose base swings when a person treads the bicycle pedals.
Nowadays many people prefer indoor exercise because of convenience and easiness, and an indoor bicycle has become one of the most popular tools of doing indoor exercise without spending much time. An indoor bicycle includes a base on which the bicycle chassis is mounted. The base is fixed to the chassis so that the base may not move or swing during pedaling actions.
Therefore, when a person treads the bicycle pedals, one cannot feel the swinging activities provided by outdoor bicycles and people get easily tired of riding this kind of indoor bicycle. Moreover, since the rider's body should be maintained uniformly while he holds the handles and treads the pedals, he is likely to feel pain in his arms and shoulders.
SUMMARY OF THE INVENTION
Accordingly, the present invention provides an improvement of an indoor bicycle, the base of which swings when a person treads the bicycle pedals. The indoor bicycle of the present invention provides similar swinging activities as provided by outdoor bicycles, and thus it makes a rider neither tired of riding the bicycle nor feel muscle pain.
According to the present invention, the indoor bicycle comprises a bicycle chassis having a frame and pedals, a base on which the bicycle chassis is longitudinally fixed, the first housing having the first support that supports one end of the base, and the second housing having the second support that supports the other end of the base. The first panel is fixed to the lower surface of the first support. The first axle extends longitudinally from the first housing, and the first aperture is formed in the first panel and pivotally receives the first axle. The first axle, after passing through the first aperture formed in the first panel, is received in a counter aperture provided in a supporting member. The second panel is fixed to the lower surface of the second support. The second axle extends longitudinally from the second housing, and the second aperture is formed in the second panel for pivotally receiving the second axle. The second axle, after passing through the second aperture formed in the second panel, is received in a counter aperture provided in a supporting member. Therefore, rider's pedaling activities are transmitted to the base and chassis, so that the base can swing when a person treads the bicycle pedals. Therefore, the rider can feel the same swinging effects as provided by an outdoor bicycle, and the rider's muscles are not fatigued. Preferably at least one buffering member, such as coil spring, is located between the second support and the second housing.
One end of the first axle is non-pivotally fixed to the first housing, the intermediate portion of the first axle is pivotally inserted into the first aperture with minimum spacing therebetween, and the other end of the first axle is non-pivotally fixed to the counter aperture formed in the first supporting member. Likewise, one end of the second axle is non-pivotally fixed to the second housing, the intermediate portion of the second axle is pivotally inserted into the second aperture with minimum spacing therebetween, and the other end of the second axle is non-pivotally fixed to the counter aperture formed in the second supporting member. Consequently, the pivoting activities can occur at the intermediate portions of the first and the second axles. Bearings may be located between the first axle and the first aperture and between the second axle and the second aperture.
Alternatively, one end of the first axle is pivotally inserted into the said first housing, the intermediate portion of the first axle is non-pivotally fixed to the first aperture, and the other end of the first axle is pivotally inserted into the counter aperture formed in the first supporting member. One end of the second axle is pivotally inserted into the second housing, the intermediate portion of the second axle is non-pivotally fixed to the second aperture, and the other end of the second axle is pivotally inserted into the counter aperture formed in the second supporting member. Under these circumstances, the first and the second supporting members are fixed to the first and the second axles respectively, and the first and the second axles can provide pivoting activities. Bearings may be located between the first axle and the first housing, between the first axle and the counter aperture formed in the first supporting member, between the second axle and the second housing, and between the second axle and the counter aperture formed in the second supporting member.
REFERENCES:
patent: 4925183 (1990-05-01), Kim
patent: 4958832 (1990-09-01), Kim
patent: 5492516 (1996-02-01), Trotter
patent: 5685806 (1997-11-01), Yu
patent: 6126577 (2000-10-01), Chang
Lee Byung Don
Lim Jung Soo
Lim Jung Soo
Nguyen Tam
Pillsbury & Winthrop LLP
Yu Mickey
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