Exercise devices – Involving user translation or physical simulation thereof – Bicycling
Reexamination Certificate
2001-11-06
2004-05-18
Lucchesi, Nicholas D. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Bicycling
C482S061000, C482S063000
Reexamination Certificate
active
06736761
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to a resistance generator adapted to a stationary bicycle exerciser, and more particularly, to one that generates resistance by vortex-induced magnetic loss during the cycling driven by rear wheel of the bicycle.
(b) Description of the Prior Art
Referring to
FIG. 1
of the accompanying drawings, a resistance generator of the prior art is adapted to a bicycle exerciser as disclosed in U.S. Pat. No. 4,826,150 essentially comprised of a main support frame
10
, a girder frame
20
each respectively connected to both ends of the main support frame
10
, a telescopic shaft
30
vertically erected into the main support frame
10
, and a head tube
40
connected at a certain inclination to a front wheel. When the bicycle exerciser is lifted off the ground by the telescopic shaft
30
and the head tube
40
, the resistance generator
50
adapted to the rear end of the main support frame
10
contacts and is driven by a rear wheel of the bicycle exerciser to produce resistance.
As illustrated in
FIG. 2
, said resistance generator
50
by having provided an iron disk
502
and an aluminum disk
503
at an end of a transmission shaft
501
, and multiple magnets
504
fixed to the front of said iron disk
502
. Magnetic north and south poles of those magnets are interlaced with one another. Said aluminum disk
503
is placed in front of those magnets
504
. Another iron disk
506
allowing micro-adjustment is provided inside an outer cover
505
on one side of the resistance generator
50
, and multiple magnets
507
with their magnetic north and south poles are also fixed to the front of the iron disk
506
. Both groups of magnets
504
and
507
are disposed relatively on both sides of the aluminum disk
503
. Once the rear wheel cycles to drive the iron disk
502
and those magnets
504
via the transmission shaft
501
, the resistance is produced due to rejection by opposite magnetism from those magnets
507
.
However, the bicycle exerciser generally available in the market today consumes too much space and takes two groups of magnet to produce resistance making it a problem for use and storage and more complicate in the manufacturing process to produce the resistance generator.
SUMMARY OF THE INVENTION
The primary purpose of the present invention is to provide a resistance generator for a stationary bicycle that produces resistance by vortex magnetic loss. To achieve the purpose, the resistance generator is comprised of a support unit, a transmission unit and a magnetism-controlled unit. In the magnetism-controlled unit, multiple magnets are arranged in a circle with interlaced north and south poles on one side of a fixation disk and linked with an aluminum disk with a transmission shaft from the transmission unit. As is those magnets on the fixation disk are disposed in relation to said aluminum disk, said aluminum disk and those magnets create vortex magnetic loss to produce the resistance when a wheel is cycling to drive said aluminum disk to rotate via the transmission shaft. In turn, the resistance is generated for a rider of the stationary bicycle to achieve fitness training effects.
Another purpose of the present invention is to provide a resistance generator of a stationary bicycle with the resistance adjustable. To achieve this purpose, a right support disk is provided to the support unit and one or more than one slope is provided on the flange of the right support disk. An elastic member is provided behind the fixation disk from the magnetism-controlled unit and an ear is provided on the upper edge of said elastic member. Said ear penetrates the slope on the flange of the right support disk to be linked to a control button for adjusting the spacing between the fixation disk and the aluminum disk, thus to vary the amount of the resistance.
Another purpose yet of the present invention is to provide a resistance generator that has provided at its bottom a frame to lift the rear wheel of the stationary bicycle off the ground for the rear wheel merely contacts the transmission unit to drive the aluminum disk to rotate.
REFERENCES:
patent: RE34479 (1993-12-01), Minoura
patent: 5468201 (1995-11-01), Minoura
patent: 5728029 (1998-03-01), Minoura
patent: 5944637 (1999-08-01), Stickler et al.
patent: 6042517 (2000-03-01), Gunther et al.
Baxley Charles E.
Lucchesi Nicholas D.
Nguyen Tam
LandOfFree
Stationary bicycle resistance generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stationary bicycle resistance generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stationary bicycle resistance generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3255104