| 摘要 |
<p>Apparatus for sharpening an edge tool having a linear cutting edge, such as a chisel, plane iron or gouge, comprises a rotary grindstone (54) having a cylindrically curved surface mounted for rotation about an axis coincident with the axis of the cylinder, and tool mounting means (42, 43, 46) on which an edge tool to be sharpened can be located, the tool mounting means (42, 43, 46) including guide means (23, 24) orientated such that relative movement between the tool (53) and the rotary grindstone (54) can take place substantially perpendicular to the plane including the point of contact between the edge tool and the stone and the axis of the grindstone (54). The tool mounting means (42, 43, 46) includes a tool mount (46) turnable about an axis orthogonal to the plane of a tool (53) carried thereby, which is itself carried on a tool mount carrier (43) turnable about an axis parallel to the axis of the rotary grindstone (54) so that a tool to be sharpened can be positioned with its edge (59) inclined to the axis of the grindstone (54) but lying in a plane parallel to this axis and to the line of relative displacement between the tool mounting means and the grindstone.</p> |
