Foldable treadmill

Abstract

A foldable treadmill includes a seat, and a two-part tread base having a front carriage pivotally attached to the seat with a pivot axle for allowing the carriage to be rotated relative to the seat, and a rear treadmill frame pivotally secured to the carriage for allowing the treadmill frame to be rotated and folded relative to the carriage, and the carriage is foldable and engageable with the seat for lowering a center of gravity of the treadmill and for preventing the treadmill from falling down when the treadmill frame is rotated and folded relative to the carriage and the seat. A spring biased latch may selectively latch the treadmill frame to the carriage at an upwardly erecting position.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a foldable treadmill, and more particularly to a foldable treadmill having an improved structure for allowing the treadmill to be easily folded to an upwardly erecting or folding position and to be easily folded to a downwardly horizontal working position. [0003] 2. Description of the Prior Art [0004] Typical foldable treadmills comprise a handle device extended upwardly from a seat or vertically supported on the seat, and a tread base having a front portion pivotally attached to the seat or the handle device for allowing the tread base to be rotated or folded relative to the seat or the handle device between an upwardly erecting or folding position and a downwardly horizontal working position. [0005] For example, U.S. Pat. No. 6,015,368 to Clem et al. discloses one of the typical foldable treadmills also comprising a treadmill frame having a front portion pivotally or rotatably atta...

AI Technical Summary

Benefits of technology

[0010] The primary objective of the present invention is to provide a foldable treadmill including a structure for allowing the treadmill to be easily folded to an upwardly erecting or folding position and to be easily folded to a downwardly horizontal working position.

[0011] The other objective of the present invention is to provide a foldable treadmill including a foldable two-part tread base for preventing the center of gravity of the treadmill from being offset from the seat and for allowing the treadmill to be retained or maintained in a stable structure and to be prevented from falling down when the tread base is rotated or folded relative to the seat.

[0012] In accordance with one aspect of the invention, there is provided a foldable treadmill comprising a seat, and a two-part tread base including a front carriage pivotally attached to the seat with a pivot axle for allowing the carriage to be rotated relative to the seat with the pivot axle, and including a rear treadmill frame pivotally secured to the carriage for allowing the treadmill frame to be rotated and folded relative to the carriage, and the carriage is foldable and engageable with the seat for lowering a center of gravity of the treadmill and for preventing the treadmill from falling down when the treadmill frame is rotated relative to the carriage and the seat.

Problems solved by technology

However, the treadmill frame includes a long integral structure that the motorized lifting structure has to spend more or great energy to rotate or to fold the treadmill frame relative to the carriage.

In addition, when the treadmill frame is rotated or folded relative to the carriage, the center of gravity of the treadmill will be offset from the carriage such that the treadmill will be unstable and may have a good chance to fall down.

However, similarly, the tread base also includes a long integral structure that the power driving device also have to spend more or great energy to rotate or to fold the tread base relative to the seat.

In addition, when the tread base is rotated or folded relative to the seat, the center of gravity of the treadmill will be offset from the seat such that the treadmill will be unstable and may have a good chance to fall down.

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