| 摘要 |
A wheelbarrow braking system helps control speed of a wheelbarrow on a slope. A braking mechanism, such as a drum brake, a disK brake assembly or a caliper brake for the wheel, has a control cable (4) and a twist-type control handle (2), which is installed in place of the regular handle grips. A simple twist of the handle operate the brake cable to activate the braking mechanism. A brake drum (7) is mounted on one side of the single wheel by either bolting or welding the brake drum mounting plate to the rim of the wheel. For a two-wheeled wheelbarrow, a brake drum is mounted in the center (10) of the axle upon which the two wheels are supported. Simply twisting the handle activates the braking system. This allows the operator to maintain contact with both handlebars during braking, facilitating greater control of the wheelbarrow. Caliper brakes may be used in the wheelbarrow braking system. A frame mounted caliper presses against a disK mounted on the wheel of the wheelbarrow to slow the wheelbarrow by friction.
|
