| 摘要 |
The invention is concerned with a feeler unit for positioning sheet glass processing tools, which comprises a frame carrying at least one feeler roller piloting a tool holder head positioning motor, and a back-up roller engageable with the underside of a sheet glass edge being processed and rotatable about an axis which extends substantially parallel to the plane containing the glass sheet and substantially perpendicular to the edge being processed. A peculiar aspect of the invention is that a controlled movement of the back-up roller to and/or from the glass sheet, as well as controllable displacing of the back-up roller along a direction which is substantially parallel to a tangential direction to the glass sheet edge and perpendicular to the axis of the feeler roller are effected to vary the mutual position relationship between the feeler roller and back-up roller. |
