U.S. patent application number 10/412593 was filed with the patent office on 2004-03-04 for treading exercising machine with adjustable elliptical track for tilting at two sides.
Invention is credited to Chang, Huang-Tung.
Application Number | 20040043871 10/412593 |
Document ID | / |
Family ID | 29547471 |
Filed Date | 2004-03-04 |
United States Patent
Application |
20040043871 |
Kind Code |
A1 |
Chang, Huang-Tung |
March 4, 2004 |
Treading exercising machine with adjustable elliptical track for
tilting at two sides
Abstract
A treading exercising machine generates adjustable elliptical
tracks to tilt at two sides thereof. The treading exercise machine
has a base each side of which having a respective support frame.
The support frames are pivotally installed with symmetrical sliding
grooves. Two sides of another end of the base have respective
coaxial cranks. Each crank is pivotally connected to one end of a
pedal. Another ends of the two pedals are connected to sliding
wheels. The sliding wheels are received in the sliding grooves so
as to move therein. The two sliding grooves with a predetermined
length have respective axial rods at the outer middle sides
thereof. Thereby, the sliding grooves are adjustable along the
support frames to adjust tilting angles at the two sides; and thus,
elliptical tracks of the pedals are changed to present operations
of moving upwards, downwards and flatly.
Inventors: |
Chang, Huang-Tung;
(Chang-Hua City, TW) |
Correspondence
Address: |
HUANG-TUNG CHANG
PO BOX 487
Chang-Hua City
500
TW
|
Family ID: |
29547471 |
Appl. No.: |
10/412593 |
Filed: |
April 14, 2003 |
Current U.S.
Class: |
482/52 ;
482/57 |
Current CPC
Class: |
A63B 22/001 20130101;
A63B 2022/067 20130101; A63B 22/0015 20130101; A63B 22/0664
20130101 |
Class at
Publication: |
482/052 ;
482/057 |
International
Class: |
A63B 021/005; A63B
022/04; A63B 022/06; A63B 069/16 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 30, 2002 |
TW |
091213783 |
Claims
What is claimed is:
1. A treading exercising machine with adjustable elliptical track
to tilt at two sides thereof; the treading exercise machine having
a base; one end of the base having two sides; each side having a
respective support frame; characterized in that: the support frames
are pivotally installed with symmetrical sliding grooves; two sides
of another end of the base have respective coaxial cranks; each
crank is pivotally connected to one end of a pedal; another ends of
the two pedals are connected to sliding wheels; the sliding wheels
are received in the sliding groove so as to move therein; the two
sliding grooves with a predetermined length have respective axial
rods at the outer middle sides thereof so that the sliding grooves
are pivotally installed to the support frames; thereby, the sliding
grooves are adjustable along the support frames to adjust tilting
angles at the two sides; thus, elliptical tracks of the pedals are
changed to present operations of moving upwards, downwards and
flatly.
2. The treading exercising machine with adjustable elliptical track
to tilt at two sides as claimed in claim 1, wherein an angle
adjuster is installed between bottoms of the sliding grooves and
the base so that oblique angle of each sliding groove is changeable
and is positioned after being adjusted.
3. The treading exercising machine with adjustable elliptical track
to tilt at two sides as claimed in claim 2, wherein the angle
adjuster includes an H type frame pivotally installed to bottoms of
the two symmetrical sliding grooves; a bottom of the H type frame
is pivotal with a push rod; two sides of the push rod have
respective guide holes for being firmly secured to the two guide
rods of the base; a screw hole is formed at a middle rod of the H
type frame; two opposite inner sides of the support frames are
formed with symmetrical guide rods; a lifting motor is installed at
a predetermined position of the base; the screw rod of the lifting
motor is screwed into the screw hole of the push rod; wherein by
above mentioned components, when the lifting motor is actuated, the
screw rod will drive the push rod to move forwards and backwards so
as to drive the H type frame pivotally installed to the push rod to
move synchronously; thereby, the oblique angle of the sliding
grooves at an upper end of the H type frame is changed leftwards or
rightwards; thus, when the left and right pedals of the two sliding
grooves are operated, a different elliptical track is generated.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to exercising training
machine, and particularly to a treading exercising machine with
adjustable elliptical track for tilting at two sides
BACKGROUND OF THE INVENTION
[0002] A prior art, U.S. Pat. No. 6,146,313 disclosed a cross
training exercise device. In that, an exercise device to simulate
various types of stepping motions is disclosed. The device
comprises a frame having a pivot axis defined thereon, the frame
configured to be supported on a floor; a first and second foot
link. Each foot link including a first end and a second end; a foot
support for receiving the user's feet. The foot support is
supported by the first and second foot links, and the foot support
having a heel supporting section and toe supporting section. A
coupling system is associated with the first end of each foot link
for coupling the first end of each foot link to the pivot axis so
that the first end of each foot link travels in a closed path
relative to the pivot axis. A guide associated with the frame and
operative to engage and direct the second ends of the foot links
along preselected reciprocating paths of travel as the first ends
of the respective foot links travel along their paths of travel, so
that when the exercise device is in use and when the second end of
one of the foot links travels forwardly from a rearmost position,
the heel supporting section of the foot support rising relative to
the toe supporting section of the foot support so that the heel
portion of the user's foot initially rises at a faster rate than a
toe portion thereof and when the second end of the foot link
travels rearwardly from a foremost position, the heel supporting
section of the foot support lowering relative to the toe
supporting, section of the foot support so that the heel portion of
the user's foot initially lowers at a faster rate than the toe
portion. An elevation system serves for selectively and
automatically changing at least one of the elevation and angular
orientation of the guide relative to the frame so as to alter the
path traveled by the second ends of the first and second links, and
to alter the nominal relative orientation of the heel supporting
section of the foot support relative to the toe supporting section
of the foot support.
[0003] However, in this prior art, the traveling paths of the foot
supports can not be changed greatly. Even the guide is adjusted to
a largest tilt angle and a smallest tilt angle. However, a line by
connecting the respective highest supporting point with the
respective lowest supporting point is only slightly shifted from
the original line with an angle of 10 to 45 degrees. Thereby, the
elliptical paths by changing the foot supports only changes
slightly. The paths simulated are only finite. Only a flat path or
a slightly upward path can be simulated. Thereby, the prior art
design has only finite functions which is not satisfied by the
users.
SUMMARY OF THE INVENTION
[0004] Accordingly, the primary object of the present invention is
to provide a treading exercising machine with adjustable elliptical
track to tilt at two sides thereof. The treading exercise machine
has a base. One end of the base having two sides; each side having
a respective support frame.
[0005] In that, the support frames are pivotally installed with
symmetrical sliding grooves. Two sides of another end of the base
have respective coaxial cranks. Each crank is pivotally connected
to one end of a pedal. Another ends of the two pedals are connected
to sliding wheels. The sliding wheels are received in the sliding
groove so as to move therein. The two sliding grooves with a
predetermined length have respective axial rods at the outer middle
sides thereof so that the sliding grooves are pivotally installed
to the support frames.
[0006] Thereby, the sliding grooves are adjustable along the
support frames to adjust tilting angles at the two sides; thus,
elliptical tracks of the pedals are changed to present operations
of moving upwards, downwards and flatly.
[0007] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a schematic view showing the structure of the
present invention.
[0009] FIG. 2 is an assembled plane view showing the structure of
the present invention.
[0010] FIG. 3 is a schematic view showing another orientation of
FIG. 2.
[0011] FIG. 4 is an exploded schematic view of the adjuster
according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] Referring to FIGS. 1 to 3, the treading exercising machine
with adjustable elliptical track to tilt at two sides thereof the
present invention. The machine has a base 10. One end of the base
10 has two sides. Each side has a respective support frame 11. The
support frames 11 are pivotally installed with symmetrical sliding
grooves 20. Another end of the base 10 have a coaxial left and a
coaxial right cranks 12. The left and right cranks 12 are pivotally
connected to one end of a left and a right pedals 30. Another ends
of the two pedals 30 are connected to sliding wheels 31. The
sliding wheels 31 can be received in the sliding grooves 20 so as
to move therein. The two sliding grooves 20 with a predetermined
length have respective axial rod 21 at the outer middle sides
thereof so that the sliding grooves 20 can be pivotally installed
to the support frames 11. Thereby, the sliding grooves 20 are
adjustable along the support frames 11 to adjust leftward and
rightward tilt angles (referring to FIG. 4). Thus, the elliptical
tracks of the pedals 30 are changed to present the operation of
moving upwards, downwards and flatly. An angle adjuster is
installed between bottoms of the sliding grooves 20 and the base 10
so that the oblique angle of the sliding groove 20 is changeable
and can be positioned after adjustment.
[0013] The angle adjuster 40 includes an H type frame 41 pivotally
installed to the bottoms of the two symmetrical sliding grooves 20.
A bottom of the H type frame 41 is pivotal with a push rod 42. Two
sides of the push rod 42 have guide holes 421 for being firmly
secured to the two guide rods 13 of the base 10. A screw hole 422
is formed at a middle rod of the H type frame. Two opposite inner
sides of the support frames 11 are formed with symmetrical guide
rods 13. A lifting motor 50 is installed at a predetermined
position of the base 10. The screw rod 51 of the lifting motor 50
is screwed into the screw hole 422 of the push rod 42.
[0014] By above structure, when the lifting motor is actuated, the
screw rod 51 will drive the push rod 42 to move forwards and
backwards so as to drive the H type frame 41 pivotally installed to
the push rod 42 to move synchronously. Thereby, the oblique angle
of the sliding grooves 20 at the upper end of the H type frame 41
is changed leftwards or rightwards. Thus, when the left and right
pedals 30 of the two sliding grooves 20 are operated, a different
elliptical track is generated. If the sliding groove 20 is adjusted
to tilt rightwards (referring to FIG. 2), when the left and right
pedals 30 move, an elliptical track for simulating a downward move
is generated. If the sliding grooves 20 moves leftwards (referring
to FIG. 3), when the left and right pedals 30 move, an elliptical
track for simulating an upward move is generated. When the sliding
grooves 20 are adjusted to be in horizontal condition, an
elliptical track as to move flatly is generated.
[0015] The present invention is thus described, it will be obvious
that the same may be varied in many ways. Such variations are not
to be regarded as a departure from the spirit and scope of the
present invention, and all such modifications as would be obvious
to one skilled in the art are intended to be included within the
scope of the following claims.
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