Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
2001-04-17
2002-10-22
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S057000, C482S051000
Reexamination Certificate
active
06468184
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an exerciser, more particularly to an exerciser which provides combined cycling and stepping exercise functions and which is capable of being converted to operate in one of cycling and stepping exercise modes.
2. Description of the Related Art
FIG. 1
illustrates a conventional cycling exerciser
10
which mainly includes a base frame
11
mounted with a resistance wheel
12
that is coupled to a drive wheel
13
for providing resistance to rotation of the drive wheel
13
. The drive wheel
13
has a pair of crank arms
14
on opposite lateral sides thereof. The base frame
11
has an upright post
15
at a front end thereof. A pair of horizontal pivot shafts
16
project laterally from the upright post
15
, and are connected pivotally to a pair of upright linking rods
17
which have lower ends connected pivotally to front ends of a pair of pedals
18
that are disposed on opposite lateral sides of the base frame
11
. The pedals
18
are coupled to the crank arms
14
, respectively, for propelling rotation of the drive wheel
13
. However, the exerciser
10
can only perform a regular cycling exercise mode, and only exercises the knees and the ankles of the user.
SUMMARY OF THE INVENTION
The main object of the present invention is to provide a combined cycling and stepping exerciser which provides combined cycling and stepping exercise functions and which is capable of being converted to operate in one of cycling and stepping exercise modes.
Accordingly, the exerciser of the present invention includes a base frame, a drive wheel, a pair of elongated lever arms, a pair of slide seats, a pair of pedal arms and fasteners. The base frame has a front end portion with an upright post, and a rear end portion opposite to the front end portion in a longitudinal direction. The upright post is formed with a pair of horizontal pivot shafts that project in opposite lateral directions transverse to the longitudinal direction. The drive wheel is mounted rotatably on the rear end portion of the base frame. The drive wheel has a horizontal wheel axle transverse to the longitudinal direction, and a pair of crank arms coupled to the wheel axle and disposed on opposite lateral sides of the drive wheel. The elongated lever arms are disposed on opposite lateral sides of the base frame. Each of the lever arms has a front end portion pivoted to a respective one of the pivot shafts on the upright post, a rear end portion, and a longitudinally extending slide groove extending between the front and rear end portions. Each of the slide seats is coupled to a respective one of the crank arms, and engages slidably the slide groove in a respective one of the lever arms so as to be slidable along the slide groove when the drive wheel rotates. The pedal members are disposed respectively on the lever arms. Each of the pedal members has a front end engaging slidably the slide groove in the respective one of the lever arms, and a rear end. The fasteners are operable for fastening the rear ends of the pedal members selectively and respectively to the slide seats and to the rear end portions of the lever arms.
REFERENCES:
patent: 6126574 (2000-10-01), Stearns et al.
patent: 6183398 (2001-02-01), Rufino et al.
patent: 6196948 (2001-03-01), Stearns et al.
patent: 6254514 (2001-07-01), Maresh et al.
Crow Stephen R.
Merchant & Gould P.C.
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