Inclination controlling device of treadmill and foldable treadmill using same

• US 20070004561A1
• Filed: 02/20/2004
• Published: 01/04/2007
• Est. Priority Date: 02/21/2003
• Status: Active Grant

• Current Assignee: Tobeone Company Limited
• Original Assignee: Tobeone Company Limited
• Inventors: Yoo, Seon-Kyung
• Granted Patent: US 7,722,507 B2
• Time in Patent Office: Days
• US Class Current: 482/54
• CPC Class Codes: A63B 22/0023 the inclination of the main axis of the movement path being adjustable, e.g. the inclination of an endless band
• CPC Class Codes: A63B 2210/50 Size reducing arrangements for stowing or transport

Abstract

The present invention provides a inclination controlling device of treadmill comprising a belt support frame 110, a first link member 120 pivotally connected to the belt support frame 110, a second link member 130 pivotally connected to the belt support frame 110, and a base frame 140 pivotally connected to both the first link member 120 and the second link, member 130 respectively thereby controlling an inclination angle of the belt support frame 110 with wider range.

Claims

1. An inclination controlling device of a treadmill comprising:

a belt support frame;

a first link member pivotally connected to said belt support frame;

a second link member pivotally connected to said belt support frame; and

a base frame pivotally connected to both said first link member and said second link member respectively.

2. The inclination controlling device of a treadmill according to claim 1, wherein said first link member is longer than said second link member.

3. The inclination controlling device of a treadmill according to claim 2, wherein the angle between said first link member and the base frame is defined between 5°

and 60°

,

when a first pivotal joint connecting said first link member with said belt support frame is positioned at the nearest to said base frame.

4. The inclination controlling device of a treadmill according to claim 2, wherein the angle between said second link member and the base frame is defined between 75°

and 90°

,

when a first pivotal joint connecting said first link member with said belt support frame is positioned at the nearest to said base frame.

5. The inclination controlling device of a treadmill according to claim 2, wherein a first pivotal joint connecting said first link member with said belt support frame is positioned lower than a second pivotal joint connecting the second link member with said belt support frame,

when said first pivotal joint connecting said first link member with said belt support frame is positioned at the nearest to said base frame.

6. The inclination controlling device of a treadmill according to claim 2, wherein a first pivotal joint connecting said first link member with said belt support frame is positioned higher than a second pivotal joint connecting the second link member with the belt support frame,

when said first pivotal joint connecting said first link member with said belt support frame is positioned at the furthest from said base frame.

7. The inclination controlling device of a treadmill according to claim 6, wherein the angle between said first link member and said base frame is defined between 75°

and 90°

,

when said first pivotal joint is positioned at the furthest from said base frame.

8. The inclination controlling device of a treadmill according to claim 6, wherein the angle between said first link member and said base frame is defined between 35°

and 50°

,

when said first pivotal joint is positioned at the furthest from said base frame.

9. The inclination controlling device of a treadmill according to claim 2, wherein the ratio of d1 over d2 is defined between 0.3 and 0.9

where said d1 is a distance between a first pivotal joint connecting said first link member with said belt support frame and a second pivotal joint connecting the second link member with said belt support frame,

and said d2 is a distance between a third pivotal joint connecting said first link member with said base frame and a fourth pivotal joint connecting said second link member with said base frame.

10. The inclination controlling device of a treadmill according to claim 2, wherein the distance from the bottom side of said base frame to the upper side of said belt support frame is defined between 100 mm and 250 mm when said base frame is parallel to said belt support frame.

11. The inclination controlling device of a treadmill according to claim 2, wherein a fourth pivotal joint connecting said second link member with said base frame is positioned between 25 mm and 80 mm from the end of said base frame.

12. The inclination controlling device of a treadmill according to claim 1, further comprising an actuator driving said belt support frame relative to said base frame.

13. The inclination controlling device of a treadmill according to claim 12, wherein said actuator includes:

a motor;

a pinion engaged with said motor and driven by said motor; and

a transfer gear engaged with both said pinion and said first link member.

14. The inclination controlling device of a treadmill according to claim 12, wherein said actuator includes:

a motor;

a pinion driven in engagement with said motor; and

a transfer gear engaged with both said pinion and said second link member.

15. The inclination controlling device of a treadmill according to claim 12, wherein said actuator is operated by contraction or extension of said bar.

16. The inclination controlling device of a treadmill according to claim 15, wherein said actuator is fixed to said base frame.

17. The inclination controlling device of a treadmill according to claim 15, wherein said actuator is fixed to said base frame, and one end of said bar is connected to said first link member.

18. The inclination controlling device of a treadmill according to claim 15, wherein said actuator is fixed to said base frame, and one end of said bar is connected to said second link member.

19. The inclination controlling device of a treadmill according to claim 15, wherein said actuator is fixed to said base frame, and one end of said bar is connected to said belt support frame.

20. The inclination controlling device of a treadmill according to claim 1, wherein said treadmill has a holding post having a handle;

and said base frame is pivotally connected to said holding post for rotating relative to said holding post.

21. An inclination controlling device of a treadmill comprising:

a belt support frame;

a first link member pivotally connected to said belt support frame;

a second link member which is shorter than said first link member, and pivotally connected to said belt support frame;

a base frame pivotally connected to both said first link member and said second link member respectively;

an actuator for driving said belt support frame relative to said base frame by means of contraction and extension of a bar movement;

wherein, one end of said actuator is pivotally connected to said base frame, and one end of said bar is pivotally connected to said belt support frame.

22-24. -24. (canceled)