Exercise devices – Involving user translation or physical simulation thereof – Bouncing device
Reexamination Certificate
2002-01-04
2003-07-08
Crow, Stephen R. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Bouncing device
C482S909000
Reexamination Certificate
active
06589140
ABSTRACT:
RELATED U.S. APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
FIELD OF THE INVENTION
The present invention relates generally to a device for amusement and exercise, and more particularly to a jumping device which is provided with a counting mechanism to exhibit the number of jumps made by the user of the device.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a prior art pogo stick or jump leg
10
comprises a handle frame
11
, a footboard
12
, and a landing rod
14
. The handle frame
11
is provided with a cylindrical slot
13
extending downwards to fasten to the footboard
12
. The landing rod
14
is extended from the handle frame
11
such that the landing rod
14
is put through the cylindrical slot
13
and the footboard
12
to make contact with the ground surface. The landing rod
14
is provided with a compression spring
16
fitted thereover. A user of the prior art jump leg
10
stands on the footboard
12
such that both hands of the user hold the handle frame
11
. The user does the jumping with the jump leg
10
for amusement and exercise. The prior art jump leg
10
is not provided with a means to count automatically the number of jumps made by the user.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a pogo stick or jump leg with a counting mechanism to exhibit the number of jumps automatically.
In keeping with the principle of the present invention, the foregoing objective of the present invention is achieved by the jump leg comprising a main body and a counting mechanism. The main body comprises a handle frame, a footboard, a cylindrical slot, a landing rod, and a compression spring. The counting mechanism is mounted in the handle frame and is formed of a counter, a drive member, and a linking member. As the jump leg is put into action, the linking member is pushed by the top end of the landing rod repeatedly such that the linking member actuates the drive member to be engaged with a driving gear of the counter. The number of jumps is exhibited by the numbered wheels which are engaged with the driving gear of the counter.
The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the present invention with reference to the accompanying drawings.
REFERENCES:
patent: 3181862 (1965-05-01), White
patent: 5011136 (1991-04-01), Rennex
patent: 6168555 (2001-01-01), Fetterleigh et al.
Crow Stephen R.
Harrison & Egbert
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