Exercise devices – Involving user translation or physical simulation thereof – Rowing
Reexamination Certificate
2002-01-14
2004-07-13
Lucchesi, Nicholas D. (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Rowing
C482S057000
Reexamination Certificate
active
06761670
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an exerciser, and more particularly to an exerciser having an improved resistive device or mechanism.
2. Description of the Prior Art
Various kinds of typical exercisers, such as the rowing type exercisers, the cycle exercisers, the pulling type exercisers, etc., have been developed for allowing the users to conduct exercises at home.
FIGS. 1 and 2
show one of the typical rowing type exercisers which comprises a seat
10
slidably engaged and supported on a track
11
or the like, and a pair of foot pedals
12
for being stepped by the users. A resistive device includes a paddle wheel, or a weight or another wheel
90
rotatably secured on a base
17
which is provided or disposed on the front portion of the track
11
, a housing
91
secured to the wheel
90
, and a spring member
92
secured to the housing
91
for further providing a resistive force or a spring biasing force against the housing
91
and the wheel
90
. A handle
13
is coupled to the wheel
90
and/or the housing
91
with a coil of thread or cable or strap
14
, for pulling and thus rotating the wheel
90
, such that the wheel
90
and the housing
91
and the spring member
92
may apply a resistive force against the handle
13
. When the handle
13
is released, the spring member
92
may bias the housing
91
and thus the wheel
90
backward to the original position. The housing
91
and thus the spring member
92
are solidly secured to the wheel
90
, such that the spring member
92
may bias the wheel
90
and the housing
91
whenever the wheel
90
and the housing
91
are rotated in an active direction and in the reverse direction. The spring member
92
may even be over-loaded when the wheel
90
and the housing
91
have been biased by the spring member
92
and over rotated in the reverse direction. The spring member
92
may thus be quickly damaged.
As shown in
FIG. 3
, illustrated is another typical exerciser similar to that shown in FIG.
1
and also comprising a seat
10
slidably engaged on a track
11
, a pair of foot pedals
12
for being stepped by the users, a wheel
90
and a housing
91
rotatably secured on a base
17
, and a spring member
92
secured to the housing
91
for providing a resistive force or a spring biasing force against the housing
91
and the wheel
90
. A handle
13
is also coupled to the wheel
90
and/or the housing
91
with a coil of thread or cable or strap
14
, for pulling and thus rotating and actuating the wheel
90
, such that the wheel
90
and the housing
91
and the spring member
92
may apply a resistive force against the handle
13
. A number of coupling members and elements are further required and provided for coupling the wheel
90
and the housing
91
and thus the spring member
92
together.
As shown in
FIG. 4
, illustrated is a further typical exerciser similar to that shown in
FIGS. 1 and 3
and also comprising a seat
10
slidably engaged on a track
11
, a pair of foot pedals
12
for being stepped by the users, a wheel
90
and a housing
91
rotatably secured on a base
17
, and a spring member
92
secured to the housing
91
for providing a resistive force or a spring biasing force against the housing
91
and the wheel
90
. Two handles
13
are coupled to the wheel
90
and/or the housing
91
with two coils of threads or straps
14
, for actuating the wheel
90
. A magnetic resistive device
93
is further provided for providing a resistive force against the housing
91
and the wheel
90
. However, the spring member
92
may also have a good chance to be over-loaded when the wheel
90
and the housing
91
have been biased by the spring member
92
and over rotated in the reverse direction. The spring member
92
may also be quickly damaged.
As shown in
FIG. 5
, illustrated is a still further typical exerciser similar to that shown in
FIGS. 1-4
and also comprising a wheel
90
and a housing
91
separately and rotatably secured on a base
17
, and a spring member
92
secured to the housing
91
for providing a resistive force or a spring biasing force against the housing
91
and the wheel
90
. A handle
13
is coupled to the wheel
90
and/or the housing
91
with a strap
14
, for actuating the wheel
90
. Similarly, a number of coupling members and elements are further required and provided for coupling the wheel
90
and the housing
91
and thus the spring member
92
together. The resistive device may include a huge volume that is adverse for storing and transportation purposes.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional exercisers.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an exerciser including an improved resistive device or mechanism for preventing the spring biasing member from being over-loaded and for increasing the working life of the spring biasing member.
In accordance with one aspect of the invention, there is provided a resistive device for an exerciser comprising a shaft, a wheel rotatably engaged on the shaft, a housing rotatably engaged on the shaft, a unidirectional bearing provided between the wheel and the housing, for allowing the wheel to be rotated in an active direction by the housing, and for preventing the wheel to be rotated in a reverse direction by the housing, means for rotating the housing relative to the shaft to rotate the wheel in the active direction, and spring biasing means for biasing the housing to rotate in the reverse direction relative to the shaft. The wheel may be prevented from rotated in the reverse direction by the housing when the housing is biased backward in the reverse direction by the spring biasing means, such that the spring biasing means will not apply a spring biasing force against the wheel when the spring biasing means biases the housing to rotate backward in the reverse direction, such that the spring biasing means may be prevented from being over loaded or over actuated or damaged by the wheel and such that the working life of the spring biasing means may be increased.
A conduit is further provided and rotatably engaged on the shaft, the housing is secured to the conduit and rotated in concert with the conduit, and the unidirectional bearing is provided between the wheel and the conduit for allowing the conduit and thus the wheel to be rotated in the active direction by the housing.
The wheel includes a bracket provided thereon, the conduit includes a bucket extended therefrom and engaged in the bracket of the wheel, the unidirectional bearing is engaged between the bracket of the wheel and the bucket of the conduit.
The housing includes a duct extended therefrom and engaged on and secured to the conduit. The rotating means includes a strap engaged on the duct of the housing, the strap includes a first end secured to the duct and a second end for being pulled to rotate the housing relative to the shaft.
A panel is further provided and engaged with the strap for retaining the strap between the panel and the housing.
The biasing means includes a spring member provided between the shaft and the housing for biasing the housing to rotate in the reverse direction relative to the shaft.
The housing includes a chamber formed therein for receiving the spring member, the spring member includes a first end secured to the housing. The housing includes a groove formed therein, the first end of the spring member is hooked to the groove of the housing.
A spacer is further provided and secured on the shaft, the spring member includes a first end secured to the spacer. The spacer includes a slot formed therein, the first end of the spring member is hooked to the slot of the spacer.
Two plates are further provided and secured on the shaft and engaged with the spacer, the spring member is engaged on the spacer. The spacer includes two ends secured to the plates respectively.
The plates each includes a non-circular recess formed therein, the ends of the spacer each includes a
Lucchesi Nicholas D.
Mathew Fenn C
LandOfFree
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