| 摘要 |
A chamfering device for a hand-held power tool driving a rotary file or cutter member (10) having a mainly conical cutting head (11). The device comprises a portion (16, 17, 19) which with a play encloses part of the circumference of the cutting head and which has an opening (20) which exposes the remaining part of said circumference for engagement with a workpiece (21). The cutting depth during said engagement is determined by support surfaces (18, 22, 23) intended for contact with the workpiece in the axial and radial directions relatively to the axis of rotation of the cutting head (11). By means of a first part (2), the device is intended to be attachably and removably fastened to a front portion (1) of the power tool, in an axially adjustable position. A second part (12) is rotatably connected to the first part (2) and comprises the opening (20) and the support surfaces (18, 22, 23). At least one radial support surface (22,23) is so located and designed that, when the chamfering device is moved along a workpiece (21), said surface is, by means of the contact pressure against a lateral surface (25) of the workpiece, guided to follow changes of direction of said lateral surface, whereby the rotatable second part (12) is kept so oriented that the cutting head (11) remains exposed relatively to the workpiece. |
