Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
2001-07-06
2003-07-22
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S051000
Reexamination Certificate
active
06595899
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention is related to a stepping exerciser and in particular to one which can be adjusted in stroke.
2. Description of the Prior Art
Referring to
FIG. 1
, the conventional stepping exerciser includes an H-shaped base
11
having a front transverse rod
12
on which is mounted a vertical post
14
. The vertical post
14
is provided with a horizontal shaft
13
having two ends each pivotally connected with a pedal
15
. The bottom of the pedal
15
is pivotally connected with an end of a hydraulic or pneumatic cylinder
16
. The other end of the hydraulic or pneumatic cylinder
16
is pivotally connected with the front transverse rod
12
. However, such a conventional stepping exerciser cannot be adjusted thereby causing much inconvenience in use.
Therefore, it is an object of the present invention to provide an improved stepping exerciser which can obviate and mitigate the above-mentioned drawbacks.
SUMMARY OF THE INVENTION
This invention is related to an improvement in the structure of a stepping exerciser.
It is the primary object of the present invention to provide a stepping exerciser wherein the stroke of the pedal can be adjusted.
It is another object of the present invention to provide a stepping exerciser wherein the pedals can be kept at a horizontal position.
According to a preferred embodiment of the present invention, a stepping exerciser includes a base having a transverse rod on which is mounted a U-shaped member, a pair of dampers each having an end pivotally connected with the U-shaped member, a primary rocking arm fixedly connected to an inverted U-shaped seat having a through hole in which is fitted a sleeve, the inverted U-shaped seat being pivotally connected with the U-shaped member by a bolt extending through the U-shaped member, sleeves, and the inverted U-shaped member to engage with a nut, an upper end of the primary rocking arm having a tubular portion, a secondary rocking arm having a rectangular slot close to a lower end which is connected with the inverted U-shaped seat, and a pair of pedals each having a bracket pivotally connected with a respective one of the dampers.
The foregoing objects and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 3511500 (1970-05-01), Dunn
patent: 5298002 (1994-03-01), Lin
patent: 5518470 (1996-05-01), Piaget et al.
patent: 5807210 (1998-09-01), Devlin
Crow Stephen R.
Lei Leong C.
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