Exercise devices – Involving user translation or physical simulation thereof – Stair climbing
Reexamination Certificate
2009-05-21
2010-06-01
Thanh, Loan H (Department: 3764)
Exercise devices
Involving user translation or physical simulation thereof
Stair climbing
C601S035000
Reexamination Certificate
active
07727121
ABSTRACT:
A stepping and waist-twisting exerciser includes a base frame with a central post near the middle part thereof. A lateral bevel gear coupled to a handlebar transmission shaft is positioned on the central post for imparting a left-and-right swing motion to a handlebar. Two longitudinal bevel gears facing to each other are rotatably disposed at the top of the central post by use of a mounting shaft20and engaged with the lateral bevel gear. Moreover, two rear parallel connecting rods movably attached to two coupling footboards, respectively, are connected with the longitudinal bevel gears to ensure a coordinated movement. In stepping on any one of the coupling footboards, the corresponding longitudinal bevel gear below will be rotated such that the lateral bevel gear is brought in rotation in opposite direction. In this way, an expected rotation is imparted to the handlebar. Besides, the movement of the longitudinal bevel gears enables an in-place rotation of the two corresponding coupling footboards. As result, the coupling footboards and the handlebar are brought in opposite rotation.
REFERENCES:
patent: 5645512 (1997-07-01), Yu
patent: 5749809 (1998-05-01), Lin
patent: 5888176 (1999-03-01), Kuo
patent: 5888177 (1999-03-01), Lin
patent: 6582344 (2003-06-01), Tang
patent: 2005/0049116 (2005-03-01), Huang
Nguyen Tam
Thanh Loan H
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