Immobilizing mechanism of a baby-walker

Details Immobilizing mechanism of a baby-walker Immobilizing mechanism of a baby-walker

2006-06-06

2006-06-06

Ellis, Christopher P. (Department: 3618)

Land vehicles

Wheeled

Coasters

C280S658000, C297S005000, C188S020000

Reexamination Certificate

active

07055836

ABSTRACT:
An immobilizing mechanism of a baby-walker includes an upper part up and down movably fitted to a lower frame of the walker, a base connected to a lower portion of the upper part in an up and down displaceable manner, and a button fitted on the lower frame; the upper part is biased upwards by several springs, and has a resilient portion, which can engage the lower frame to prevent the upper part from moving up after the upper part is depressed; a spring is arranged between the upper part and the base such that a lower end of the base is normally farthest away from the upper part; the button is used for disengaging the resilient portion from the lower frame; thus, the mechanism can be made to support the baby-walker instead of the wheels by depressing the upper part, and can become inactive when the button is pressed.

REFERENCES:
patent: 4799700 (1989-01-01), Knoedler et al.
patent: 4822030 (1989-04-01), Cone
patent: 5366231 (1994-11-01), Hung
patent: 5586622 (1996-12-01), Hu
patent: 5590892 (1997-01-01), Hu
patent: 5727800 (1998-03-01), Liu
patent: 5938218 (1999-08-01), Chuang
patent: 6224077 (2001-05-01), Sheng
patent: 6352234 (2002-03-01), Liu

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