Patent ID: 6179697
Filing Date: 2001-01-30
Classification: B24B

Abstract:
A grindstone adapter for engaging a drive comprising:a disk pad to which a grindstone is attached wherein said disk pad has a central boss with a drive force transmitting portion and a plurality of flexible stop projections being formed on said central boss wherein each of said Plurality of said flexible stop projections includes an expanded portion and wherein said drive is fitted in said drive force transmitting portion;a drive portion including a drive side coupling fitting in said boss, said drive side coupling including a plurality of individual stop concave portions, each said expanded portion of said plurality of said flexible stop projections axially engages with a respective individual stop concave portion to thereby lock said concave portions with said stop projection to prevent rotational movement; anda depression cylinder axially urged by a spring in order to maintain an engaging state between said plurality of said flexible stop projections and said individual stop concave portions, wherein said depression cylinder is formed on said drive side coupling.