U.S. patent application number 11/429994 was filed with the patent office on 2007-06-21 for shaking endless belt for treadmills.
Invention is credited to Dick Chang.
Application Number | 20070142183 11/429994 |
Document ID | / |
Family ID | 37658171 |
Filed Date | 2007-06-21 |
United States Patent
Application |
20070142183 |
Kind Code |
A1 |
Chang; Dick |
June 21, 2007 |
Shaking endless belt for treadmills
Abstract
A treadmill includes a frame having two rollers and an endless
belt is mounted on the two rollers. One of the rollers is driven by
a motor and a control device is electrically connected to the motor
so as to control the motor to be rotated in different directions
alternatively. The alternative rotation of the motor shakes the
endless belt and the user's body.
Inventors: |
Chang; Dick; (Taichung
Hsien, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
37658171 |
Appl. No.: |
11/429994 |
Filed: |
May 9, 2006 |
Current U.S.
Class: |
482/54 |
Current CPC
Class: |
A63B 22/0235 20130101;
A61H 1/001 20130101; A63B 2022/0278 20130101; A63B 21/00196
20130101 |
Class at
Publication: |
482/054 |
International
Class: |
A63B 22/02 20060101
A63B022/02 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 15, 2005 |
CN |
200520144881.0 |
Claims
1. A treadmill comprising: a frame having two rollers located at
two ends of the frame and an endless belt mounted on the two
rollers, one of the rollers being driven by a motor and a
transmission belt connected between the roller and the motor, and a
control device electrically connected to the motor and controlling
the motor to rotate in different directions.
2. The treadmill as claimed in claim 1, wherein a pair of idle
wheels are located between the motor and the roller driven by the
transmission belt, the idle wheels are in contact with the
transmission belt.
3. The treadmill as claimed in claim 1, wherein the motor rotates
in opposite directions alternatively.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a treadmill which includes
a control device for changing the operation modes of the motor so
as to cause shaking to the endless belt so that the user on the
endless belt is massaged by the shaking.
BACKGROUND OF THE INVENTION
[0002] A conventional treadmill 50 is shown in FIG. 5 and generally
includes a frame and two rollers 51 are located at two ends of the
frame, an endless belt 52 is mounted to the tow rollers 51. One of
the rollers 51 is driven by a motor 60 and a transmission belt 61
is connected between the motor 60 and the roller 51 that is
cooperated with the motor 60. When the motor 60 is activated, the
roller 51 cooperated with the motor 60 drives the other motor 51 to
drive the endless belt 52 such that the user can run on the moving
endless belt 52. A control device 70 is electrically connected to
the motor 60 and receives demands form the user to set the desired
speed of the endless belt 52 according to individual needs. A
support board is located beneath the endless belt 52 and includes
serrated surface and the user is supported on that board. The
endless belt 52 generates mild vibration when moving on the
serrated surface of the board and the user may feel mild shaking.
By changing the speed of the motor 60, the user may feel being
massaging by the vibration or shaking. Nevertheless, it is not
satisfied by most of the users because of it is boring to run on
the endless belt without to much exercise to the user's body.
Besides, the control device 70 involves complicate controlling
steps to generate such change to the endless belt 52 so that the
way that the control device 70 controls the operation of the motor
needs to be improved.
[0003] The present invention intends to provide a treadmill with a
control device which controls the motor to rotate in different
directions periodically so as to cause the endless belt to shake
while the user is running on the endless belt. The shaking of the
endless belt exercises the user's whole body.
SUMMARY OF THE INVENTION
[0004] The present invention relates to a treadmill which comprises
a frame having two rollers installed at two ends of the frame and
an endless belt is mounted on the two rollers. One of the rollers
is driven by a motor with a transmission belt connected
therebetween. A control device is electrically connected to the
motor and controls the motor to rotate in different directions
alternatively.
[0005] The primary object of the present invention is to provide a
treadmill wherein the endless belt shakes by the alternative
rotation of the motor so that the users on the endless belt have
extra exercise to their bodies. The angles that the motor rotates
can be controlled by the control device so as to meet different
requirements.
[0006] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings which show, for purposes of illustration
only, a preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 is a side view to show the treadmill of the present
invention;
[0008] FIG. 2 illustrates the angles that the motor operates in
different directions;
[0009] FIG. 3 shows that the user on the endless belt feels the
shaking;
[0010] FIG. 4 shows a pair of idle wheels are cooperated with the
transmission belt, and
[0011] FIG. 5 is an exploded view to show a conventional
treadmill.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0012] Referring to FIGS. 1 to 3, the treadmill 10 of the present
invention comprises a frame having two rollers 11 installed at two
ends of the frame and an endless belt 12 is mounted on the two
rollers 11. One of the rollers 11 is driven by a motor 20 with a
transmission belt 21 connected therebetween. A control device 30 is
electrically connected to the motor 20 and controls the motor 20 to
rotate in different directions alternatively. The control device 30
can be electrically connected with a control panel (not shown) on a
handle bar (not shown) of the treadmill 10. As shown in FIG. 2, the
motor 20 can be controlled by the control device 30 to rotate an
angle .theta. such as 45 degrees in positive direction and then to
rotate another angle .theta.' such as 45 degrees in negative
direction. In other words, the motor 20 rotates 90 degrees
alternatively. By this pattern, the endless 12 shakes and the
shaking is transferred to the user's body so that the user feels
like being massaged during using the treadmill.
[0013] As shown in FIG. 4, a pair of idle wheels 40 are located
between the motor 20 and the roller 11 driven by the transmission
belt 21. The transmission belt 21 is located between the two idle
wheels 40 which are in contact with the transmission belt 21 to
ensure that the transmission belt 21 has desired tension so as to
transfer the rotational force of the change of direction from the
motor 20 to the roller 51.
[0014] While we have shown and described the embodiment in
accordance with the present invention, it should be clear to those
skilled in the art that further embodiments may be made without
departing from the scope of the present invention.
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