U.S. patent application number 10/704818 was filed with the patent office on 2005-05-12 for oval-track exerciser with selective handlebar operation mode.
Invention is credited to Chen, James.
Application Number | 20050101445 10/704818 |
Document ID | / |
Family ID | 34552209 |
Filed Date | 2005-05-12 |
United States Patent
Application |
20050101445 |
Kind Code |
A1 |
Chen, James |
May 12, 2005 |
Oval-track exerciser with selective handlebar operation mode
Abstract
An oval track exerciser includes a machine base with two bearing
members at two sides, two handles fastened pivotally with an
upright at the machine base at two sides, a wheel fastened
pivotally with a front side of the machine base, two pedals, each
pedal having a front end respectively pivoted to the wheel at two
sides, a rear end movably supported on a respective sliding rail at
the machine base, and a bearing member at an outer side on the
middle, and two links, each link having a front end respectively
coupled to bottom ends of the handle and a rear end respectively
selectively coupled to the bearing members at the pedals or the
bearing members at the machine base.
Inventors: |
Chen, James; (Taichung
Hsien, TW) |
Correspondence
Address: |
BROWDY AND NEIMARK, P.L.L.C.
624 NINTH STREET, NW
SUITE 300
WASHINGTON
DC
20001-5303
US
|
Family ID: |
34552209 |
Appl. No.: |
10/704818 |
Filed: |
November 12, 2003 |
Current U.S.
Class: |
482/52 |
Current CPC
Class: |
A63B 22/0664 20130101;
A63B 22/203 20130101; A63B 22/0007 20130101; A63B 2022/0676
20130101 |
Class at
Publication: |
482/052 |
International
Class: |
A63B 022/04 |
Claims
What is claimed is:
1. An oval track exerciser comprising: a machine base having a base
frame and an upright upwardly extended from a front side of said
base frame, said base frame having two bearing members disposed at
two sides; two handlebars each having a middle part respectively
pivotally fastened to said upright, a top end for the holding of a
user's hand, and a bottom end; a wheel fastened pivotally to the
front side of said base frame of said machine base; two pedals
longitudinally disposed at two sides of said wheel, said pedals
each having a front end respectively pivoted to said wheel, a rear
end longitudinally movably supported on said base frame of said
machine base, and a bearing member at one side; and two links each
having a front end respectively coupled to the bottom ends of said
handlebars and a rear end terminating in a coupling member for
detachably coupling to the bearing members of said base frame or
the bearing members of said pedals.
2. The oval-track exerciser as claimed in claim 1, wherein the
bearing members of said base frame and the bearing members of said
pedals are respectively a cylinder; the coupling members of said
links are respectively a barrel and selectively sleeved onto the
cylindrical bearing members of said base frame or said pedals.
3. The oval-track exerciser as claimed in claim 2, wherein the
cylindrical bearing members of said base frame each comprise a
shank disposed at an inner side, a head disposed at an outer side,
and a neck connected between said shank and said head; said links
each further comprises a locating screw perpendicularly threaded
through the respective coupling member for engaging the neck of one
cylindrical bearing member of said base frame.
4. The oval-track exerciser as claimed in claim 1, wherein said
upright comprises a top handle for the holding of the user's
hands.
5. The oval-track exerciser as claimed in claim 1, wherein said
base frame of said machine base comprises two sliding rails
longitudinally arranged in parallel at a rear side; said pedals
each have a roller provided at the respective rear ends and
respectively supported on said sliding rails.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to physical exercisers and,
more particularly, to an oval-track exerciser with selective
handlebar operation mode.
[0003] 2. Description of the Related Art
[0004] A conventional oval-track exerciser is known comprising a
machine base, the machine base having a front upright with a
handle, a wheel, and two sliding rails, two handlebars, the
handlebars each having a middle part respectively pivoted to the
upright at two sides, two elongated pedals, the pedals each having
a front end respectively coupled to the two opposite ends of the
wheel axle of the wheel and a rear end respectively movably
supported on the sliding rails, and two links respectively coupled
between the pedals and the bottom ends of the handlebars. When
pedaling the pedals, the handlebars are alternatively oscillated
forwards and backwards relative to the upright.
[0005] When operating the oval-track exerciser, the user
respectively alternatively pedal the pedals with the legs and
alternatively push and pull the handlebars with the hands.
Alternatively, the user can hold the handle at the upright with the
hands when pedaling the pedals. At this time, the handlebars are
still alternatively oscillated forwards and backwards at two sides
of the user's body, causing oppression to the user.
SUMMARY OF THE INVNEION
[0006] The present invention has been accomplished under the
circumstances in view. It is the main object of the present
invention to provide an oval-track exerciser, which allows the user
to selectively lock the handlebars, or unlock the handlebars for
oscillation following the pedaling of the pedals.
[0007] To achieve this object of the present invention, the oval
track exerciser comprises a machine base having a base frame and an
upright upwardly extended from a front side of the base frame. The
base frame includes two bearing members symmetrically disposed at
two sides. Two handlebars are vertically disposed at two sides of
the upright. The handlebars each have a middle part respectively
fastened pivotally to the upright, a top end for the holding of a
user's hand, and a bottom end. A wheel is fastened pivotally to the
front side of the base frame of the machine base. Two pedals are
longitudinally symmetrically disposed at two sides of the wheel.
The pedals each have a front end respectively pivoted to the wheel,
a rear end longitudinally movably supported on the base frame of
the machine base, and a bearing member at one side. Two links are
symmetrically longitudinally disposed at two sides of the base
frame. The links each have a front end respectively coupled to the
bottom ends of the handlebars and a rear end terminating in a
coupling member for detachably coupling to the bearing members of
the base frame or the bearing members of the pedals.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a side view of an oval-track exerciser according
to the present invention, showing the links coupled to the
cylindrical bearing members of the machine base.
[0009] FIG. 2 is another side view of the present invention,
showing the links coupled to the cylindrical bearing members at the
pedals.
[0010] FIG. 3 is an exploded view in an enlarged scale of a part of
the oval-track exerciser according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Referring to FIGS. 1.about.3, an oval-track exerciser in
accordance with the present invention is shown comprised of a
machine base 10, two handlebars 20, a wheel 30, two pedals 40, and
two links 50.
[0012] The machine base 10 comprises a base frame 11 horizontally
placed on the floor, and an upright 12 upwardly extended from the
front side of the base frame 11 on the middle. The base frame 11 is
a longitudinally extended elongated, narrow, flat frame, comprising
two longitudinal sliding rails 13 bilaterally arranged in parallel
at the rear half, and two cylindrical bearing members 14
transversely aligned at two sides on the middle. The upright 12
comprises two pivot rods 15 transversely aligned at two sides on
the middle, and a handle 16 shaped like a U-bar and disposed near
the top side. The handle 16 has two ends curved upwards for the
holding of the hands.
[0013] The two handlebars 20 each have a middle part respectively
fastened to the pivot rods 15 at two sides of the upright 12. The
top end of each handle 29 is made for comfortable gripping of the
hand. The bottom end of each handle 29 has a back side fixedly
provided with a U-lug 21. The U-lug 21 has two pivot holes 22
horizontally aligned at two sides.
[0014] The wheel 30 is fastened pivotally with the front side of
the base frame 11 of the machine base 10, having two cranks 31
respectively connected to the two distal ends of the transversely
extended wheel axle. The cranks 31 have the respective straight
crank body perpendicularly extended from the wheel axle of the
wheel 30.
[0015] The two pedals 40 are elongated members longitudinally
suspended at two sides of the base frame 11, each having a front
end respectively pivoted to the outer ends of the cranks 31, a rear
end respectively provided with a roller 41, which is movably
supported on one longitudinal sliding rail 13 of the base frame 11,
and a cylindrical bearing member 42 transversely disposed at an
outer side. The cylindrical bearing member 42 has a shank 43
disposed at the inner side, a head 45 disposed at the outer side,
and a neck 44 connected between the shank 43 and the head 45. When
installed, the pedals 40 can be alternatively pedaled to turn the
cranks 31 about the central axis of the wheel 30. During rotary
motion of the cranks 31 about the central axis of the wheel 40, the
rollers 41 are alternatively moved with the pedals 40 back and
forth along the sliding rails 13.
[0016] The two links 50 each have a spherical coupling member 51 at
one end, a barrel-like coupling member 52 at the other end, and a
locating screw 54 threaded into a transverse screw hole (not shown)
at the barrel-like coupling member 52. The spherical coupling
members 51 of the links 50 are respectively pivotally connected to
the pivot holes 22 of the U-lugs 21 by a respective pivot pin 53.
The barrel-like coupling members 52 of the links 50 can be
respectively coupled to the two cylindrical bearing members 14 at
the base frame 11 or the cylindrical bearing members 42 at the
pedals 40. When coupling the links 50 to the cylindrical bearing
members 42 at the pedals 40, the barrel-like coupling members 52 of
the links 50 are respectively sleeved onto the heads 45 of the
cylindrical bearing members 42 of the pedals 40, and the respective
locating screws 54 are rotated inwards and engaged into the necks
44 of the cylindrical bearing members 42 to prevent axial movement
of the barrel-like coupling members 52 along the cylindrical
bearing members 42.
[0017] Referring to FIG. 1 again, when connecting the barrel-like
coupling members 52 of the links 50 to the two cylindrical bearing
members 14 at the base frame 11, the handlebars 20 are simply
connected to the base frame 11 and the upright 12 and vertically
disposed at two sides of the upright 12. At this mode, the
handlebars 20 cannot be biased.
[0018] Referring to FIG. 2 again, when connecting the barrel-like
coupling members 52 of the links 50 to the cylindrical bearing
members 42 at the pedals 40, the handlebars 20 are pivoted to the
upright 12 with the respective bottom ends coupled to the pedals 40
via the links 50, and therefore the handlebars 20 alternatively
oscillated forwards and backwards during oval track motion of the
pedals 40.
[0019] As indicated above, the user can decide whether to let the
handlebars 20 be operative or not by coupling the links 50 to the
cylindrical bearing members 14 or the cylindrical bearing members
42, i.e., to connect the barrel-like coupling members 52 of the
links 50 to the cylindrical bearing members 42 at the pedals 40
when wishing to let the handlebars 20 be movable with the pedals
40, or to connect the barrel-like coupling members 52 of the links
50 to the cylindrical bearing members 14 of the machine base 10
when not wishing to operate the handlebars 20. When the handlebars
20 not linked to the pedals 40, the user can hold the handle 16 or
the top ends of the handlebars 20 with the hands while pedaling the
pedals 40 with the legs. At this time, the handlebars 20 are
bilaterally disposed at the front side of the user and not movable
without affecting the pedaling of the pedals 40 by the user.
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