U.S. patent application number 09/789297 was filed with the patent office on 2002-08-22 for rowing exercise machine.
Invention is credited to Lin, Richard.
Application Number | 20020115537 09/789297 |
Document ID | / |
Family ID | 27439058 |
Filed Date | 2002-08-22 |
United States Patent
Application |
20020115537 |
Kind Code |
A1 |
Lin, Richard |
August 22, 2002 |
Rowing exercise machine
Abstract
A rowing exercise machine comprises a base, a seat mounted on
the base, two rowing rods pivotally mounted on the base, an
actuating wheel having a shaft rod, two crank rods fastened at one
end with the shaft rod, and a damping device. The rowing rods are
respectively pivoted at one end with the other end of the two crank
rods such that the rowing rods can be swiveled along a circular
path in a reciprocating manner. The damping device comprises a fly
wheel and a gauge for regulating the damping magnitudes. The fly
wheel is linked with the actuating wheel.
Inventors: |
Lin, Richard; (Taichung,
TW) |
Correspondence
Address: |
HARRISON & EGBERT
412 MAIN STREET
7TH FLOOR
HOUSTON
TX
77002
US
|
Family ID: |
27439058 |
Appl. No.: |
09/789297 |
Filed: |
February 21, 2001 |
Current U.S.
Class: |
482/72 |
Current CPC
Class: |
A63B 21/225 20130101;
A63B 2022/0084 20130101; A63B 24/00 20130101; A63B 22/0089
20130101; A63B 21/15 20130101; A63B 23/03575 20130101; A63B 22/0076
20130101; A63B 2022/0028 20130101; A63B 21/012 20130101; A63B
21/068 20130101 |
Class at
Publication: |
482/72 |
International
Class: |
A63B 069/06 |
Claims
What is claimed is:
1. A rowing exercise machine comprising; a base; a seat mounted on
said base; two rowing rods pivotally mounted on said base; said
base further provided with an actuating wheel, two crank rods, and
a damping device, said actuating wheel being pivotally mounted on
said base and provided with a shaft rod fastened therewith, each of
said two crank rods having an arm with a fastening end which is
fastened with one end of said shaft rod, each of said two crank
rods further having a horizontal rod portion which is provided with
a pivoting portion for pivoting one end of the rowing rods, said
fly wheel being linked with said actuating wheel by a transmission
belt, and with said gauge being provided with means to control and
display a damping magnitude of said damping device.
2. The rowing exercise machine as defined in claim 1, wherein said
horizontal rod portion is provided with an outer tube fitted
thereover whereby said outer tube is provided with two lugs, with
each having a through hole.
3. The rowing exercise machine as defined in claim 1, wherein said
pivoting portion of said crank rods is provided with a plastic ring
fitted thereover.
4. The rowing exercise machine as defined in claim 1, wherein said
actuating wheel and said fly wheel are protected by a shield.
5. The rowing exercise machine as defined in claim 1, wherein said
arm of said crank rods is provided with a plurality of fastening
holes for fastening said horizontal rod portion of said crank
rods.
6. The rowing exercise machine as defined in claim 1, wherein said
horizontal rod portion of said crank rods is pivoted with a
circumference of said actuating wheel.
7. The rowing exercise machine as defined in claim 6, wherein said
actuating wheel is provided in the circumference thereof with a
plurality of fastening holes which are different in distance from
an axis of said actuating wheel for fastening said horizontal rod
portion.
8. The rowing exercise machine as defined in claim 1, wherein said
rowing rods are provided with an expandable adjustment portion.
Description
FIELD OF THE INVENTION
[0001] The present invention relates generally to an exercise
machine, and more particularly to a rowing exercise machine.
BACKGROUND OF THE INVENTION
[0002] As illustrated in FIGS. 1-4, a rowing exercise machine of
the prior art comprises a base 05, two swiveling arms 06 pivoted to
the base 05 such that the swiveling arms 06 are opposite in
location to each other, two grips 07 located respectively at the
top ends of the two swiveling arms 06, and a damping mechanism 08
mounted at the bottom ends of the two swiveling arms 06. In
operation, an exerciser is seated on the machine such that both
hands of the exerciser hold the two grips 07 to swivel the two
swiveling arms 06 in a reciprocating manner to imitate the rowing
motion. The reciprocating motion of the two grips 07 takes place
along an arcuate path instead of a circular path of the actual
rowing motion, as shown in FIG. 4. In addition, the damping
mechanism 08 has a fixed magnitude, which can not be adjusted in
accordance with the needs of the users of the rowing exercise
machine of the prior art.
SUMMARY OF THE INVENTION
[0003] The primary objective of the present invention is to provide
a rowing exercise machine which is free of the deficiencies of the
prior art rowing exercise machine described above.
[0004] In keeping with the principle of the present invention, the
foregoing objective of the present invention is attained by the
rowing exercise machine comprising an actuating wheel, two crank
rods, and a damping device. The actuating wheel has a shaft rod.
The two crank rods are fastened at one end with the shaft rod. Two
rowing rods are respectively pivoted at one end with the other end
of the two crank rods such that the rowing rods can be swiveled
along a circular path in a reciprocating manner. The damping device
comprises a fly which which is linked with the actuating wheel, and
a gauge.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] FIG. 1 shows a schematic view of a rowing exercise machine
of the prior art in action.
[0006] FIG. 2 shows a schematic view of another prior art rowing
exercise machine in action.
[0007] FIG. 3 shows a schematic view of still another prior art
rowing exercise machine in action.
[0008] FIG. 4 shows a schematic view of a rowing boat in
action.
[0009] FIG. 5 shows a perspective view of a first preferred
embodiment of the present invention.
[0010] FIG. 6 shows a partial exploded view of the first preferred
embodiment of the present invention.
[0011] FIG. 7 shows a schematic plan view of the first preferred
embodiment of the present invention in action.
[0012] FIG. 8 shows another schematic plan view of the first
preferred embodiment of the present invention in action.
[0013] FIG. 9 shows a schematic view of structural variation of the
first preferred embodiment of the present invention.
[0014] FIG. 10 shows a schematic plan view of a second preferred
embodiment of the present invention.
[0015] FIG. 11 shows a schematic view of structural variation of
the second preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0016] As shown in FIGS. 5-11, a rowing exercise machine of the
present invention comprises a base 10, a seat 11 mounted on the
base 10, two rowing rods 12, an actuating wheel 20, two crank rods
30, and a damping device.
[0017] The present invention is characterized by the actuating
wheel 20 which is pivotally mounted on the base 10 and is provided
with a shaft rod 21 fastened therewith. Each of the two crank rods
30 has an arm 31 with a fastening end 32 which is fastened with one
end of the shaft rod 21.
[0018] Each crank rod 30 further has a horizontal rod portion 33
which is provided with a pivoting portion 34 for pivoting one end
of the rowing rod 12.
[0019] The damping device comprises a fly wheel 41 and a gauge 42.
The fly wheel 41 is linked with the actuating wheel 20 by a
transmission belt or chain 43. The gauge 42 is provided with means
to regulate and display the damping magnitudes.
[0020] The horizontal rod portion 33 is provided with an outer tube
39 which is fitted over the horizontal rod portion 33 and is
provided with two lugs 36, with each having a through hole 35.
[0021] The pivoting portion 34 is provided with a plastic ring 37
fitted thereover.
[0022] The actuating wheel 20 and the fly wheel 41 of the damping
device are protected by a shield 50.
[0023] The arm 31 of the crank rods 30 is provided with a plurality
of fastening holes 38 for fastening the horizontal rod portion 33
as desired.
[0024] The horizontal rod portion 33 of the crank rods 30 wheel 20,
as shown in FIG. 10.
[0025] As shown in FIG. 11, the actuating wheel 20 is provided in
the circumference with a plurality of fastening holes 22 which are
different in distance from the axis of the actuating wheel 20 for
fastening the horizontal rod portion 33.
[0026] The rowing rods 12 may be provided at an appropriate
position thereof with an expandable adjustment portion.
[0027] As illustrated in FIGS. 7 and 8, when the rowing rods 12 are
pushed and pulled by both hands of an exerciser, the crank rods 30
are linked to drive the actuating wheel 20 to rotate in a circular
manner along with the horizontal rod portion 33 of the crank rods
30. In addition, the rowing rods 12 are radially displaced on the
pivoting portion 34 acting as a pivoting point.
[0028] The damping effect of the damping device is brought about at
the time when the actuating wheel 20 is turned.
[0029] The actuating wheel 20 is linked with the fly wheel 41 by
the transmission belt 43. The damping magnitude is displayed on the
gauge 42 and is controlled by the gauge 42.
* * * * *