| 摘要 |
An abrasive finishing article in which an axially projecting drive member secures the article to a support pad. The drive member is formed with a hollow threaded boss, disposed through a centrally defined opening in the article, and an outwardly extending member at the base of the boss disposed on the opposite side of the article to press the article against the support pad. The outwardly extending member can be formed with a plurality of tabs which are pressed into engagement with backing material of the article whereby to secure the drive member in intimate integral connection with the article. The support pad includes a core-socket member and an axial stud whereby the drive member boss may be threadably retained in female-male engagement with the stud and core member, respectively, the core member being formed with internal and external abutment surfaces for close fitting engagement with the top surface of the drive member and surfaces of the finishing article laterally thereof, respectively.
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