Two-wheeled trolley with vertical frame and foldable support whe

Details Two-wheeled trolley with vertical frame and foldable support whe Two-wheeled trolley with vertical frame and foldable support whe

1995-05-30

1997-05-20

Camby, Richard M.

Land vehicles

Wheeled

Extensible

280655, 280 4729, B62B 104

Patent

active

056306016

ABSTRACT:
A collapsible hand trolley includes a frame having manual gripping handles t its upper end, and a support plate at its lower end. A pair of wheel carriers is also mounted on the lower end of the frame. The trolley can be folded to a storage condition by pivoting the wheel carriers about generally vertical axes, and pivoting the support plate about a generally horizontal axis. When the wheel carriers have been unfolded to an operative position, a connection rod pivotably mounted to the frame is pivoted about a generally horizontal axis to a securing position between the wheel carriers in order to pre vent the wheel carriers from moving to their folded positions.

REFERENCES:
patent: 3043603 (1962-07-01), Major, Sr.
patent: 3241852 (1966-03-01), Muller et al.
patent: 4335895 (1982-06-01), Walker
patent: 4335985 (1982-06-01), Kistler
patent: 5439739 (1995-08-01), Su
patent: 5468005 (1995-11-01), Yang

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