Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
1999-06-23
2001-01-30
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S053000, C601S035000
Reexamination Certificate
active
06179752
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention is related to a swinging linkage device disposed between a stepper and an upright bar of a stepping exerciser, more particularly to an exerciser that, by means of a linkage device that drives the upright bar and a handle to swing and turn, allows the user to twist his/her upper trunk while performing stepping exercise.
(b) Description of the Prior Art
Some existing steppers additionally provide a swinging function to allow users to swing their lower trunk while performing stepping exercise. However, as the upright bar and the handle of the stepper are fixed, users can hardly exercise their arms and upper trunk. Prior patents have taught exercisers that allow exercising of the arms by providing two handlebars that can swing back and forth. Exercisers of this type allow users to swing their arms back and forth as if running while performing stepping exercise, but they do not permit twisting of the upper trunk.
With reference to
FIG. 1
, U.S. Pat. No. 5,749,809 teaches a “Stepping and Swinging Exerciser” which includes a tube
14
′ and a handle
16
′ that can swing simultaneously. When the user steps on a foot pedal
21
′, a cable or chain
26
′ drives a pulley
25
′ at one end of a rod
23
′ to rotate. The other end of the rod
23
′ is connected to a bevel gear
24
′, which drives a bevel gear
17
′ and a pivot shaft
12
′ to rotate, thereby enabling the tube
14
′, which is secured to the pivot shaft
12
′, to swing therewith.
As the exerciser taught in said U.S. Pat. No. 5,749,809 employs indirect power transmission, the structure thereof is relatively complicated. Besides, the swinging action of the handle
16
′ can only allow the user to twist his/her waist and does not allow the user to swing his/her arms back and forth. Improvement thereon is therefore desirable.
SUMMARY OF THE INVENTION
A primary object of the present invention is to provide a swinging linkage device that employs direct transmission; that is simple in construction and easy to operate; and that allows the user to swing and exercise his/her upper trunk while performing stepping exercise.
Another object of the present invention is to provide a swinging linkage device that is disposed at a front end of a stepping and swinging exerciser and that cooperates with a transversely disposed handle to allow folding of the exerciser to save storage space and packaging material as well as facilitate transportation.
REFERENCES:
patent: 5545111 (1996-08-01), Wang et al.
patent: 5628709 (1997-05-01), Chen
Crow Stephen R.
Dougherty & Troxell
Nguyen Tam
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