| 摘要 |
An adjustable brush for cleaning a drive or sprocket chain has a C-shaped toolhead fixed to a handle with an opposing cleaning element. The length of the handle sufficiently keeps users hands away from the chain during cleaning, and provides a means for the opposing cleaning element to clean generally inaccessible areas. The toolhead defines a chain passage recess having a plurality of inner sides. Each inner side has projecting retaining members to define a brush block cavity adapted to removably receive a brush block element such that a cleaning member formed thereon projects into the recess. Likewise, the opposing cleaning element has a pair of retaining members projecting therefrom to define a brush block cavity adapted to removably receive a brush block element. Grooves formed in sides of the brush block elements are interengageable with ridges depending from the retaining members, thereby permitting the brush block element's position to be adjusted, such that the cleaning members associated with the respective inner sides of the toolhead are thereby brought closer together to adjust the dimensions of the recess in order to conform to the size of the drive or sprocket chain.
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