公开(公告)号：US12275117B2

公开(公告)日：2025-04-15

申请号：US17415804

申请日：2019-12-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Paul Larking ,  Andrew Robert Henry

IPC: B24B45/00 ,  B24D9/08 ,  B24D13/20

Abstract: The present invention relates to an attachment hub for attachment to a sander, comprising a quick-release attachment assembly configured for releasable and aligned engagement with a counterpart of a backup pad particularly for an abrasive disc. Furthermore, the invention relates to a backup pad having a disc-like shape and comprising a first major surface and a second major surface, the first major surface configured for direct or indirect attachment of an abrasive disc, and the second major surface configured for facing towards an attachment hub for attachment to a sander, and a mounting portion for aligned engagement with an attachment hub of a sander.