| 摘要 |
PCT No. PCT/US96/19191 Sec. 371 Date May 27, 1998 Sec. 102(e) Date May 27, 1998 PCT Filed Dec. 2, 1996 PCT Pub. No. WO97/21521 PCT Pub. Date Jun. 19, 1997Accessories for an angle grinder include a disposable rotary sanding disk having quite large shaped ventilating/viewing apertures, for use with a resilient backing plate also having shaped ventilating apertures. The apertures of one or both parts are shaped so that snagging of the apertures on projections from the work surface is minimized and to facilitate air flow across the work surface during use. This air flow helps in cooling the work and ejecting detritus, so minimizing clogging effects. The ventilating apertures also facilitate viewing the work to be sanded through the spinning disk during the abrasion process, so that operator feedback is immediate. The holes also give the sanding disk more resilience so that a greater area comes in contact with the work and the disk wears more evenly over its abrasive surface.
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