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US 5,095,885 AGranted
Inside grindstone and washing method thereof
OwnerYasuo Komatsuzakiinventor
Life of this patent
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Abstract
In an inside grindstone and a washing method thereof, a plurality of concave cut-outs are arranged on both sides of a cutting-edge layer which is formed at an inner periphery of an annular substrate. Parts of abrasive grains at both sides of an outer periphery of the cutting-edge layer are smaller in projecting amount than parts of the abrasive grains on an inner periphery of the cutting-edge layer. The washing method comprises the step of blowing off shavings accumulated in the concave cut-outs, by abrasive liquid and jetting gas which are jetted toward the cutting-edge layer.
Claims9
An inside grindstone comprising:
- an annular substrate;
- a cutting-edge layer formed on at least one side of said annular substrate at an inner periphery thereof;
- a plurality of depressions arranged in said cutting-edge layer;
- abrasive grains of a selected size, and means for bonding said abrasive grains to said substrate to form said cutting-edge layer, and
- further including means, disposed in an outer periphery of said cutting-edge layer, for limiting the extent to which the abrasive grains, coextensive with said limiting means, are exposed for cutting, whereby said grains coextensive with said limiting means are smaller in projecting amount to define a smoother abrasive surface than the surface defined by others of said abrasive grains on an inner periphery of said cutting-edge layer.
2 more elements
Dependencies are inferred from the claim text.