Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
2000-10-10
2001-11-13
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S146000
Reexamination Certificate
active
06315697
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a stepping exerciser having two pedals connected to two respective cylinders and the depth being stepped of each pedal can be adjustable.
BACKGROUND OF THE INVENTION
The stepping exerciser known to applicant is US patent application with application Ser. No. 09/431,203. The stepping exerciser is illustrated in
FIGS. 1
to
3
and includes a base
4
with a tubular member
42
connected thereto and two couplers
54
extend in opposite directions from the tubular member
42
so that two pedals
52
are respectively and rotatably connected to the two couplers
54
. The two couplers
54
are rotatable about a central axis of a shaft
422
on which the couplers
54
are mounted. Two slots
421
are defined through the tubular member
42
. A rotatable member
51
is received in the tubular member
42
and two extension members
511
extend from the rotatable member
51
and extend through the slots
421
. Each of the extension members
511
has a sleeve
512
mounted thereon. Two connection rods
41
connected to the tubular member
42
so that two cylinders
53
are respectively connected to an underside of each of the pedals
52
and the two connection rods
41
. When a user steps on the two pedals
52
and alternatively steps the pedals
52
, the couplers
54
are rotated and the two extension members
511
are pushed by the pushing rods
541
extending from the couplers
54
. By this way, the user can alternatively steps the pedals
52
downward and the cylinders
53
provide resistance for the exercising purpose.
However, because the two feet of users have different level of muscle forces so that the resistance may be too solid for one of the two feet. Therefore, the user feels that his/her body is inclined to one side because the foot on that side can step deeper than the other foot.
The present invention intends to provide a stepping exerciser wherein the depth of the pedals can be adjustable.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a stepping exerciser and comprising a base with two rods connected to the base. A tubular member extends from the base and two slots are defined diametrically through the tubular member. Two arms extend diametrically from the tubular member. A rotatable member is rotatably received in the tubular member and two extensions extend diametrically from the rotatable member. The two extensions extend through the two slots. Two pedals each have a sleeve which is mounted to respective one of the two arms and each sleeve has a pushing rod extending radially therefrom. Two blocks are respectively connected to the two pushing rods and contact the two extensions. Each block has a plurality of convex portions extending radially outward therefrom. Two cylinders are respectively connected between respective one of the two pedals and respective one of the two rods.
The primary object of the present invention is to provide a stepping exerciser wherein the depth of each pedal that is stepped downward can be adjusted independently.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.
REFERENCES:
patent: 5230675 (1993-07-01), Lin
patent: 5453065 (1995-09-01), Lien et al.
patent: 5545111 (1996-08-01), Wang et al.
patent: 5628709 (1997-05-01), Chen
Crow Stephen R.
Rosenberg , Klein & Lee
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