Wheelbarrow having a handbrake
OwnerB. Earl Canfield, Jr.inventor
Life of this patent
Estimating the term…
Abstract
Handbrake assembly for the wheelbarrow is normally "on" and comprises a brake lever pivoted to the wheelbarrow undercarriage. One end of the lever carries a shoe head, the other a fixture for the drive cable of a Bowden wire leading to a bicycle-type handbrake. A spring presses the brake shoe end of the lever so that it engages the wheel.
Claims8
A normally "on" brake assembly for a wheelbarrow having an undercarriage, the wheelbarrow having at least one wheel mounted on the undercarriage and having an axis, the assembly comprising:
- a. a base plate adapted to be secured to the undercarriage and having a lever pin extending downward therefrom,
- b. a brake lever having a shoe end and a drive end, the lever intermediate its ends being pivotally mounted on the lever pin, the shoe end being formed with an aperture,
- c. a bracket secured to the base plate spaced from the lever pin and having a spring-centering pin mounted thereon parallel to the base plate and directed at the shoe end of the brake lever,
- d. a shoe assembly comprising a shoe head having a stem formed with an inward end extending outward through the aperture in the shoe end of the brake lever, and a sleeve slidably received onto the stem from the outward end and having an annular flange spaced from the outward end of the sleeve, the shoe head adapted to engage the wheel at a position offset from the axis of the wheel,
- e. an axial spring receiving from opposite ends respectively the sleeve and the spring-centering pin, the spring disposed compressively between the bracket and the flange, and
- f. drive means attached to the drive end of the brake lever.
A normally "on" brake assembly for a wheelbarrow having an undercarriage, the wheelbarrow having at least one wheel mounted on the undercarriage and having an axis, the assembly comprising:
- a. a base plate adapted to be secured to the undercarriage and having a lever pin extending downward therefrom,
- b. a brake lever having a shoe end and a drive end, the lever intermediate its ends being pivotally mounted on the lever pin, the shoe end being formed with an aperture,
- c. a bracket secured to the base plate spaced from the lever pin and having a spring-centering pin mounted thereon parallel to the base plate and directed at the shoe end of the brake lever,
- d. a shoe assembly comprising a shoe head having a stem defined by an inward end extending outward through the aperture in the shoe end of the brake lever, and annular means surrounding the stem and slidable thereon and spaced from the outward end of the stem, the shoe head adapted to engage the wheel at a position offset from the axis of the wheel,
- e. drive means attached to the drive end of the brake lever, and
- f. an axial spring surrounding on opposite ends respectively the stem and the spring-centering pin, the spring disposed between the bracket and the lever and urging the shoe head into braking engagement with the wheel.
Dependencies are inferred from the claim text.