Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
2001-12-14
2003-06-24
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C482S052000, C482S147000
Reexamination Certificate
active
06582344
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to an exercising machine, and more particularly to a rotary step exerciser, which rotates when the user alternatively steps on the pedals.
BACKGROUND OF THE INVENTION
A conventional step exerciser (climber) has two pedals on which the user steps up and down alternatively with the legs.
FIGS. 1 and 2
show a step exerciser according to the prior art. This structure of step exerciser
80
comprises a base frame
81
, two pedals
83
, a wheel unit
85
, a rotary support
87
, and an upright handle
89
. The base frame
81
comprises transversely extended end bars
811
, two longitudinal bars
812
connected between the end bars
811
, and a rack
813
connected to one end bar
811
between the longitudinal bars
812
. The rotary support
87
is pivoted to the rack
813
. The upright handle
89
is fixedly fastened to the rotary support
87
. The wheel unit
85
comprises a double groove pulley
851
, a first pulley
852
, a first steel-rope
853
, a second pulley
854
, and a second steel rope
855
. The double groove pulley
851
has a rod member
856
extended from the casing thereof and fastened to a through hole
813
in one end bar
811
of the base frame
81
. The first pulley
852
and the second pulley
854
are respectively mounted on the longitudinal bars
812
. The first steel rope
853
has one end fixedly connected to the left pedal
83
and the other end passed through the first pulley
852
and the double groove pulley
851
and then connected to the rotary support
87
. The second steel rope
855
has one end fixedly connected to the right pedal
83
and the other end passed through the second pulley
854
and the double groove pulley
851
and then connected to the rotary support
87
. When the user alternatively steps the pedals
83
up and down, the upright handle
89
is alternatively rotated with the rotary upright support
87
. This structure of step exerciser is functional, however it is monotonous in use. During exercising, the user constantly faces the same scene in front of the step exerciser. This monotonous exercising motion bores the user quickly.
SUMMARY OF THE INVENTION
The present invention has been accomplished under the circumstances in view. It is one object of the present invention to provide a rotary step exerciser, which rotates the user step by step when the user steps the pedals alternatively up and down.
It is another object of the present invention to provide a rotary step exerciser, which greatly attracts the user to make exercises.
To achieve these objects of the present invention, the rotary step exerciser comprises a base having an upright support with a top bevel gear, a rotary rack pivoted to the upright support, the rotary rack comprising a pivoted driving shaft, a pivoted transmission axle perpendicularly aimed at the driving shaft, a first bevel gear fixedly mounted on one end of the transmission axle and engaged with the bevel gear at the upright shaft, a second bevel gear fixedly mounted on the other end of the transmission axle, and a third bevel gear fixedly mounted on the driving shaft and engaged with the second bevel gear, two pedals coupled to the driving shaft through reversed one-way bearings, a rocker pivoted to the rotary rack and coupled between the pedals. When the user stepping the pedals alternatively up and down, the rotary rack is turned about the upright shaft step by step.
Another object of the present invention is to provide a magnetic compass having an illuminating device that has fewer structural components as well as a lower production cost and malfunction rate.
To achieve the above objects, the magnetic compass of the present invention comprises a base, a compass assembly mounted on the base, a lid pivoted to one end of the base, and an aiming device pivoted to the other end of the base. The aiming device is provided with a magnifying glass, a lighting element and a battery set. The light of the lighting member is projected towards the compass assembly and the battery set supplies electrical current to the lighting member.
REFERENCES:
patent: 5230675 (1993-07-01), Lin
patent: 5645512 (1997-07-01), Yu
patent: 5938569 (1999-08-01), Lin
patent: 6179752 (2001-01-01), Chang
Browdy and Neimark , P.L.L.C.
Crow Stephen R.
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