Patent ID: 7537288

Claim:
A tool holding device for fastening to a roller of a road planer, comprising: a base for fastening to a peripheral surface of the roller, comprising a receiving portion defined between a countering wall and a shoulder wall, a surface defined adjacent to the shoulder wall perpendicularly and away from the countering wall, a penetrated hole defined on the countering wall along an axis, and a positioning hole communicating with the penetrated hole, wherein the countering wall and the shoulder wall define an angle less than or equal to 90 degrees; a block detachably set on the base, comprising a holding portion held in the receiving portion, wherein the holding portion comprises two walls disposed against the countering wall and the shoulder wall respectively, a handle extending outward from the holding portion and received in the penetrated hole, and a holding hole defined through the holding portion and the handle along the axis of the penetrated hole for holding a chisel; and a fastening member fixed in the positioning hole of the base and against the handle of the block to secure the holding portion.