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US20080171641A1 - Treadmill - Google Patents

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Publication number
US20080171641A1
US20080171641A1 US11/863,057 US86305707A US2008171641A1 US 20080171641 A1 US20080171641 A1 US 20080171641A1 US 86305707 A US86305707 A US 86305707A US 2008171641 A1 US2008171641 A1 US 2008171641A1
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US
United States
Prior art keywords
wheel
treadmill according
frame
treadmill
tracks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/863,057
Inventor
Yao-Lung Chang
A-Chiao You
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20080171641A1 publication Critical patent/US20080171641A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0664—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing an elliptic movement
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0664—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing an elliptic movement
    • A63B2022/0676—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing an elliptic movement with crank and handles being on the same side of the exercising apparatus with respect to the frontal body-plane of the user, e.g. crank and handles are in front of the user
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0056—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using electromagnetically-controlled friction, e.g. magnetic particle brakes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions
    • A63B2225/093—Height

Definitions

  • the present invention relates to a treadmill and, more particularly, to a miniature, structurally simple and therefore inexpensive treadmill.
  • Another conventional treadmill including a base, a wheel disposed on a front portion of the base and two exercise units arranged on opposite sides of the wheel.
  • Each exercise unit includes a track, a keel and a tread.
  • the tread is carried on the keel.
  • the keel includes a front end connected to the wheel and a rear end movably mounted on the track.
  • Taiwanese Patent M271597 Disclosed in Taiwanese Patent M271597 is a treadmill including a base 10 , a shaft 20 disposed on a front portion of the base 10 , a wheel 16 disposed on a lower portion of the base 10 and two exercise units.
  • Each exercise unit includes a rocker 23 connected to the shaft 20 , a crank 161 connected to the wheel 16 , a keel 25 arranged between the rocker 23 and the crank 161 and a tread 26 disposed on the keel 25 .
  • This conventional treadmill however forces the user to take small steps instead of strides for using a very small wheel.
  • the present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
  • the primary objective of the present invention is to provide a miniature, structurally simple and therefore inexpensive treadmill.
  • a treadmill includes a frame, two tracks, a wheel, two keels and two treads.
  • the frame includes a front portion and a rear portion.
  • the tracks are extended from the rear portion of the frame.
  • the wheel is provided on the front portion of the frame.
  • Each of the keels includes a front end connected to the wheel and a rear end movable on a related one of the tracks.
  • Each of the treads is carried on a related one of the keels.
  • FIG. 1 is a perspective view of a treadmill according to the first embodiment of the present invention
  • FIG. 2 is a side view of the treadmill shown in FIG. 1 ;
  • FIG. 3 is a partial exploded view of the treadmill shown in FIG. 4 ;
  • FIG. 4 is a partial cross-sectional view of the treadmill of FIG. 2 ;
  • FIG. 5 is a side view of the treadmill in another position than shown in FIG. 2 ;
  • FIG. 6 is a side view of the treadmill in another position than shown in FIG. 5 ;
  • FIG. 7 is a perspective view of a treadmill according to the second embodiment of the present invention.
  • a treadmill includes a frame 10 , a wheel 20 provided on the frame 10 , a resistance element 30 provided on the frame 10 , a belt 35 wound around the wheel 20 and the resistance element 30 and two exercise units each provided on a different side of the wheel 20 according to a first embodiment of the present invention.
  • the frame 10 includes a longitudinal bar, a crossbar formed at a front end of the longitudinal bar and a post 15 formed on the longitudinal bar near the crossbar.
  • the wheel 20 is provided on the post 15 . During rotation, the wheel 20 receives resistance from the resistance element 30 through the belt 35 .
  • the resistance element 30 is located behind the wheel 20 .
  • the resistance element 30 may be a magnetically-controllable resistance element or a brake-belt resistance element. The resistance that the resistance element 30 exerts on the wheel 20 is adjustable.
  • Each of the exercise units includes a track 60 , a crank 25 , a keel 40 and a tread 50 .
  • the track 60 is connected to a rear portion of the longitudinal bar of the frame 10 .
  • An end of the crank 25 is connected to the wheel 20 .
  • Another end of the crank 25 is connected to a front end of the keel 40 .
  • a rear end of the keel 40 is provided with a roller 45 .
  • the roller 45 is movable on and along the track 60 .
  • the tread 50 is carried on the keel 40 .
  • the track 60 includes a slot 65 defined therein.
  • Two ribs 66 are formed on two parallel edges of the slot 65 to enhance the strength of the track 60 .
  • the keel 40 includes two ears 41 formed at a rear end.
  • a threaded bolt 46 is driven through the ears 41 and the roller 45 .
  • a nut is engaged with the threaded bolt 46 .
  • a pin 48 is inserted through the ears 41 and the slot 65 so that the roller 45 is retained on the track 60 .
  • a user sets his feet on the treads 50 .
  • treading the treads 50 alternately the user moves the treads 50 up and down and back and forth alternatively.
  • One of the treads 50 is moved down and forward while the other tread 50 is moved up and backward.
  • the user treads the treads 50 in imitation of walking or jogging.
  • FIG. 7 there is shown a treadmill according to a second embodiment of the present invention.
  • the second embodiment is identical to the first embodiment except two things.
  • a telescopic cane 72 including a lower tube 70 perpendicularly connected to the crossbar of the frame 10 and an upper tube 75 telescopically inserted in the lower tube 70 .
  • a ball may be provided on the upper tube 75 .
  • a length-adjusting design 80 for adjusting the length of the telescopic cane 72 .
  • the length-adjusting design 80 includes a screw hole 81 defined in the lower tube 70 , a series of apertures 82 defined in the upper tube 75 and a threaded bolt 83 driven in a selected one of the apertures 82 through the screw hole 81 .
  • a knob or butterfly head is secured to the threaded bolt 83 so that the user can operate the knob to rotate the threaded bolt 83 without having to use an external tool.
  • An advantage of the treadmill according to the present invention is safety for the user since the vertical movement of the treads is limited to a small range and the treads are located at low position so that the user has no trouble balancing himself on the treads.
  • Another advantage of the treadmill according to the present invention is the simple structure and therefore a low cost.
  • Still another advantage of the treadmill according to the present invention is the small size that renders it easy for the user to install, use and store the treadmill.

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

A treadmill includes a frame, two tracks, a wheel, two keels and two treads. The frame includes a front portion and a rear portion. The tracks are extended from the rear portion of the frame. The wheel is provided on the front portion of the frame. Each of the keels includes a front end connected to the wheel and a rear end movable on a related one of the tracks. Each of the treads is carried on a related one of the keels.

Description

    BACKGROUND OF INVENTION
  • 1. Field of Invention
  • The present invention relates to a treadmill and, more particularly, to a miniature, structurally simple and therefore inexpensive treadmill.
  • 2. Related Prior Art
  • Recently, time and places for exercise are getting less. Therefore, there have been devised various exercise machines for providing various training programs such as bicycles and treadmills.
  • There has been a conventional treadmill that only allows a user to move his legs up and down alternately with limited effects of exercise.
  • There has been another conventional treadmill that allows a user to move his legs up and down and back and forth alternately; however, it is bulky, structurally complicated and therefore expensive. It is inconvenient for the user to install, use and store the bulky oval-trace exercise machine.
  • To improve the effects of exercise, there has been devised another conventional treadmill including a base, a wheel disposed on a front portion of the base and two exercise units arranged on opposite sides of the wheel. Each exercise unit includes a track, a keel and a tread. The tread is carried on the keel. The keel includes a front end connected to the wheel and a rear end movably mounted on the track. This conventional treadmill is still bulky.
  • Disclosed in Taiwanese Patent M271597 is a treadmill including a base 10, a shaft 20 disposed on a front portion of the base 10, a wheel 16 disposed on a lower portion of the base 10 and two exercise units. Each exercise unit includes a rocker 23 connected to the shaft 20, a crank 161 connected to the wheel 16, a keel 25 arranged between the rocker 23 and the crank 161 and a tread 26 disposed on the keel 25. This conventional treadmill however forces the user to take small steps instead of strides for using a very small wheel.
  • The present invention is therefore intended to obviate or at least alleviate the problems encountered in prior art.
    • SUMMARY OF INVENTION
  • The primary objective of the present invention is to provide a miniature, structurally simple and therefore inexpensive treadmill.
  • According to the present invention, a treadmill includes a frame, two tracks, a wheel, two keels and two treads. The frame includes a front portion and a rear portion. The tracks are extended from the rear portion of the frame. The wheel is provided on the front portion of the frame. Each of the keels includes a front end connected to the wheel and a rear end movable on a related one of the tracks. Each of the treads is carried on a related one of the keels.
  • Other objectives, advantages and features of the present invention will become apparent from the following description referring to the attached drawings.
    • BRIEF DESCRIPTION OF DRAWINGS
  • The present invention will be described through detailed illustration of two embodiments referring to the drawings wherein:
  • FIG. 1 is a perspective view of a treadmill according to the first embodiment of the present invention;
  • FIG. 2 is a side view of the treadmill shown in FIG. 1;
  • FIG. 3 is a partial exploded view of the treadmill shown in FIG. 4;
  • FIG. 4 is a partial cross-sectional view of the treadmill of FIG. 2;
  • FIG. 5 is a side view of the treadmill in another position than shown in FIG. 2;
  • FIG. 6 is a side view of the treadmill in another position than shown in FIG. 5; and
  • FIG. 7 is a perspective view of a treadmill according to the second embodiment of the present invention.
    •  DETAILED DESCRIPTION OF EMBODIMENTS
  • Referring to FIGS. 1 and 2, a treadmill includes a frame 10, a wheel 20 provided on the frame 10, a resistance element 30 provided on the frame 10, a belt 35 wound around the wheel 20 and the resistance element 30 and two exercise units each provided on a different side of the wheel 20 according to a first embodiment of the present invention.
  • The frame 10 includes a longitudinal bar, a crossbar formed at a front end of the longitudinal bar and a post 15 formed on the longitudinal bar near the crossbar.
  • The wheel 20 is provided on the post 15. During rotation, the wheel 20 receives resistance from the resistance element 30 through the belt 35. The resistance element 30 is located behind the wheel 20. The resistance element 30 may be a magnetically-controllable resistance element or a brake-belt resistance element. The resistance that the resistance element 30 exerts on the wheel 20 is adjustable.
  • Each of the exercise units includes a track 60, a crank 25, a keel 40 and a tread 50. The track 60 is connected to a rear portion of the longitudinal bar of the frame 10. An end of the crank 25 is connected to the wheel 20. Another end of the crank 25 is connected to a front end of the keel 40. A rear end of the keel 40 is provided with a roller 45. The roller 45 is movable on and along the track 60. The tread 50 is carried on the keel 40.
  • Referring to FIGS. 3 and 4, the track 60 includes a slot 65 defined therein. Two ribs 66 are formed on two parallel edges of the slot 65 to enhance the strength of the track 60.
  • The keel 40 includes two ears 41 formed at a rear end. A threaded bolt 46 is driven through the ears 41 and the roller 45. A nut is engaged with the threaded bolt 46. A pin 48 is inserted through the ears 41 and the slot 65 so that the roller 45 is retained on the track 60.
  • Referring to FIGS. 2, 5 and 6, a user sets his feet on the treads 50. By treading the treads 50 alternately, the user moves the treads 50 up and down and back and forth alternatively. One of the treads 50 is moved down and forward while the other tread 50 is moved up and backward. Thus, the user treads the treads 50 in imitation of walking or jogging.
  • Referring to FIG. 7, there is shown a treadmill according to a second embodiment of the present invention. The second embodiment is identical to the first embodiment except two things. Firstly, there is a telescopic cane 72 including a lower tube 70 perpendicularly connected to the crossbar of the frame 10 and an upper tube 75 telescopically inserted in the lower tube 70. A ball may be provided on the upper tube 75. Secondly, there is a length-adjusting design 80 for adjusting the length of the telescopic cane 72. The length-adjusting design 80 includes a screw hole 81 defined in the lower tube 70, a series of apertures 82 defined in the upper tube 75 and a threaded bolt 83 driven in a selected one of the apertures 82 through the screw hole 81. A knob or butterfly head is secured to the threaded bolt 83 so that the user can operate the knob to rotate the threaded bolt 83 without having to use an external tool.
  • An advantage of the treadmill according to the present invention is safety for the user since the vertical movement of the treads is limited to a small range and the treads are located at low position so that the user has no trouble balancing himself on the treads.
  • Another advantage of the treadmill according to the present invention is the simple structure and therefore a low cost.
  • Still another advantage of the treadmill according to the present invention is the small size that renders it easy for the user to install, use and store the treadmill.
  • The present invention has been described via the detailed illustration of the embodiments. Those skilled in the art can derive variations from the embodiments without departing from the scope of the present invention. Therefore, the embodiments shall not limit the scope of the present invention defined in the claims.

Claims (12)

1. A treadmill comprising:
a frame comprising a front portion and a rear portion;
two tracks extended from the rear portion of the frame;
a wheel provided on the front portion of the frame;
two keels each comprising a front end connected to the wheel and a rear end movable on a related one of the tracks; and
two treads each carried on a related one of the keels.
2. The treadmill according to claim 1 comprising a post formed on the front portion of the frame, and the wheel is provided on the post.
3. The treadmill according to claim 1 comprising two cranks each comprising an end connected to the wheel and another end connected to the front end of a related one of the keels.
4. The treadmill according to claim 1 comprising:
a resistance element provided on the frame behind the wheel; and
a belt wound around the wheel and the resistance element so that the resistance element provides adjustable resistance to the wheel during rotation.
5. The treadmill according to claim 4 wherein the resistance is selected from a group consisting of a magnetically controllable resistance element and a brake-belt resistance element.
6. The treadmill according to claim 1 wherein each of the keels comprises:
two ears formed on the rear end thereof; and
a roller connected to the ears for rolling on and along a related one of the tracks.
7. The treadmill according to claim 6 wherein each of the tracks comprises a slot defined therein, and each of the keel comprises a pin inserted through the ears thereof and the slot of a related one of the tracks so that the roller thereof is retained on the related keel.
8. The treadmill according to claim 7 wherein each of the tracks comprises two ribs formed along two parallel edges of the slot thereof to enhance the strength thereof.
9. The treadmill according to claim 1 comprising a cane perpendicularly provided on the front portion of the frame to be held by a user.
10. The treadmill according to claim 9 wherein the cane is a telescopic cane comprising a lower tube perpendicularly provided on the front portion of the frame and an upper tube telescopically inserted in the lower tube.
11. The treadmill according to claim 10 comprising a length-adjusting device for adjusting the length of the telescopic cane.
12. The treadmill according to claim 11 wherein the length-adjusting device comprises:
a screw hole defined in the lower tube;
a series of apertures defined in the upper tube; and
a threaded bolt for insertion in a selected one of the apertures through the screw hole.
US11/863,057 2007-01-12 2007-09-27 Treadmill Abandoned US20080171641A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW096200700 2007-01-12
TW096200700U TWM322831U (en) 2007-01-12 2007-01-12 Exercising stepper

Publications (1)

Publication Number Publication Date
US20080171641A1 true US20080171641A1 (en) 2008-07-17

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ID=39185384

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/863,057 Abandoned US20080171641A1 (en) 2007-01-12 2007-09-27 Treadmill

Country Status (4)

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US (1) US20080171641A1 (en)
JP (1) JP3138344U (en)
DE (1) DE202007013551U1 (en)
TW (1) TWM322831U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9849331B2 (en) * 2016-05-06 2017-12-26 SHANG JIA YU Co., Ltd. Elliptical stepper
CN109568081A (en) * 2018-12-11 2019-04-05 安阳工学院 A kind of lower extremity movement training aids
CN115192975A (en) * 2021-04-14 2022-10-18 丰田自动车株式会社 pedal exercise device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803874A (en) * 1992-09-16 1998-09-08 Wilkinson; William T. Universally adaptable adjustable arm exercise device to supplement leg exercising
US6095953A (en) * 1998-12-14 2000-08-01 High Spot Industrial Co., Ltd. Magnetic control of exercise bicycle
US6390954B1 (en) * 2001-05-31 2002-05-21 Kuo-Lung Lee Step exerciser
US6565494B1 (en) * 2000-04-12 2003-05-20 James Chen Portable and multifunctional exercise device
US20070054779A1 (en) * 2005-09-02 2007-03-08 Lung-Huei Lee Elliptical exercise apparatus
US20070060449A1 (en) * 2005-09-09 2007-03-15 Chiu-Hsiang Lo Foldable elliptical fitness machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803874A (en) * 1992-09-16 1998-09-08 Wilkinson; William T. Universally adaptable adjustable arm exercise device to supplement leg exercising
US6095953A (en) * 1998-12-14 2000-08-01 High Spot Industrial Co., Ltd. Magnetic control of exercise bicycle
US6565494B1 (en) * 2000-04-12 2003-05-20 James Chen Portable and multifunctional exercise device
US6390954B1 (en) * 2001-05-31 2002-05-21 Kuo-Lung Lee Step exerciser
US20070054779A1 (en) * 2005-09-02 2007-03-08 Lung-Huei Lee Elliptical exercise apparatus
US20070060449A1 (en) * 2005-09-09 2007-03-15 Chiu-Hsiang Lo Foldable elliptical fitness machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9849331B2 (en) * 2016-05-06 2017-12-26 SHANG JIA YU Co., Ltd. Elliptical stepper
CN109568081A (en) * 2018-12-11 2019-04-05 安阳工学院 A kind of lower extremity movement training aids
CN115192975A (en) * 2021-04-14 2022-10-18 丰田自动车株式会社 pedal exercise device
US20220331654A1 (en) * 2021-04-14 2022-10-20 Toyota Jidosha Kabushiki Kaisha Pedaling exercise device
JP2022163528A (en) * 2021-04-14 2022-10-26 トヨタ自動車株式会社 pedal exercise device
US12005305B2 (en) * 2021-04-14 2024-06-11 Toyota Jidosha Kabushiki Kaisha Pedaling exercise device
JP7578056B2 (en) 2021-04-14 2024-11-06 トヨタ自動車株式会社 Pedal exercise device

Also Published As

Publication number Publication date
JP3138344U (en) 2007-12-27
TWM322831U (en) 2007-12-01
DE202007013551U1 (en) 2008-03-13

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