Wheelbarrow with self-braking mechanism

Details Wheelbarrow with self-braking mechanism Wheelbarrow with self-braking mechanism

2008-07-08

2008-07-08

Ellis, Christopher P. (Department: 3618)

Land vehicles

Wheeled

Stable vehicles, handle-propelled

C280S047410

Reexamination Certificate

active

11550405

ABSTRACT:
The self-braking wheelbarrow of the present invention comprises a wheelbarrow bin assembly mounted so as to pivot relative to an undercarriage assembly whereby the bin assembly interferes with the wheels on the undercarriage assembly causing a friction on the tread of the wheel and restricting the rotation of the wheel. In normal usage the undercarriage assembly is secured to the wheelbarrow bin assembly by securing latches. Braking is accomplished by selectively releasing securing latches, thereby permitting the wheelbarrow to pivot, and lifting the handles as if to move the wheelbarrow. The braking force applied to the tread on the wheel is proportional to the bin load thereby resulting in higher braking force with higher bin loads.

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patent: D527157 (2006-08-01), Boon
patent: 2003/0141686 (2003-07-01), Willis

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