Safety device for baby walker

Details Safety device for baby walker Safety device for baby walker

1993-08-17

1994-12-13

Rowan, Kurt C.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Wheels

16 35R, B60B 3300

Patent

active

053719220

ABSTRACT:
The present invention relates to a safety device for a baby walker which has a main wheel and an auxiliary wheel. By using a main wheel lock plate and a telescopic pipe, a ratchet on the main wheel can be prevented from blocking by a lock block under normal circumstances. While moving on a slope the lock plate will block the ratchet by its own weight to control baby walker without sliding. By using an auxiliary wheel lock plate and a fixed spring, the lock can also be blocked in normal circumstances. The auxiliary wheel can be suspended in the air and the movable shaft always faces toward the motion direction. In this way, the baby walker will not fall on a hollow ground (such as stairs) and will automatically stop sliding on a slope, with the lock block blocking the auxiliary wheel ratchet and auxiliary wheel friction surface.

REFERENCES:
patent: 1105379 (1914-07-01), Schulze
patent: 2123707 (1938-07-01), Bloch
patent: 2197273 (1940-04-01), Lindeman
patent: 2701005 (1955-02-01), Bennett et al.
patent: 4467496 (1984-08-01), Gregg
patent: 4534433 (1985-08-01), Burbank et al.
patent: 5119525 (1992-06-01), Melara
patent: 5215320 (1993-06-01), Chen
patent: 5259088 (1993-11-01), Yang

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