Grinding tool

Abstract

Abstract PURPOSE:To make it possible to efficiently grind two opposing faces in a groove without shifting a hand grinder from one hand to the other by lapping and sticking the back face having no abrasive grains of circular abrasive boards on both faces of a circular board through adhesive. CONSTITUTION:Circular grinding boards 4, and 4', are made up by overlapping the side edges of a multiple number of rectangular abrasive sheet 5 having abrasive grains on one side, and radially arranging and assembling them. Back faces of the circular grinding boards, 4 and 4', which have no abrasive grains, are respectively stuck through adhesive on both the front and back sides of a circular board 1 which has a penetrated hole 2 for a drive shaft at its center. When a grinding tool is made with a circular board 1 and two circular grinding boards 4, and 4', as described above, two opposing faces in a groove can be ground with two circular grinding boards, 4 and 4', without shifting a hand grinder from one hand to the other.

Inventors

• 👤 Yuichi Ichiguchi
• 👤 裕一 市口

Bibliographic Details