Throw-away tip with abrasion sensor
AssigneeKYOCERA Corporation
InventorHideaki Kataoka
Life of this patent
Estimating the term…
Abstract
A throw-away tip according to the present invention has a plurality of cutting corner portions. The corner portions are each provided with a sensor line surrounding the corner portion and a return line extending parallel to the sensor line. The procision of the return line makes it possible to provide connection portions connected to a pair of connection lines on one of the adjacent flanks on the corner portion. Therefore, the connection lines can be provided in a spaced parallel relation on the same flank. The area of a region surrounded by a pair of contact regions, the pair of connection lines, the return line and the sensor line is reduced, so that circuits for plurality of sensor lines can properly be arranged on the surface of a base of the throw-away tip.
Claims15
A throw-away tip with an abrasion sensor, comprising:
- a generally planar base having a rake face defined by one of opposite surfaces thereof, a seat face defined by the other surface thereof opposite from the rake face, and a flank defined by a side face thereof intersecting the rake face and the seat face;
- a cutting ridge defined by an intersection between the rake face and the flank;
- a sensor line of a conductive film provided along the cutting ridge on the flank in an electrically insulative relation with respect to the base;
- a pair of contact regions provided on the seat face in an electrically insulative relation with respect to the base, the contact regions being electrically connectable to a predetermined circuit;
- and
- a pair of connection lines provided on the base in an electrically insulative relation with respect to the base and respectively connecting the pair of contact regions to opposite ends of the sensor line, one of the pair of connection lines including a return line spaced a predetermined distance from the sensor line in a parallel relation to the sensor line.
A throw-away tip with an abrasion sensor, comprising:
- a generally planar base having a rake face defined by one of opposite surfaces thereof, a seat face defined by the other surface thereof opposite from the rake face, and a plurality of flanks defined by a plurality of side faces thereof intersecting the rake face and the seat face;
- a plurality of cutting ridges respectively defined by intersections between the rake face and the flanks;
- N cutting corner portions, each defined by an intersection between the rake face and an adjacent pair of flanks, wherein N is a natural number not less than 2;
- sensor lines of a conductive film respectively provided along the cutting ridges on the N corner portions in an electrically insulative relation with respect to the base to surround the corner portions;
- N pairs of contact regions provided on the seat face in an electrically insulative relation with respect to the base, the contact regions being electrically connectable to a predetermined circuit;
- and
- N pairs of connection lines provided on the base in an electrically insulative relation with respect to the base and respectively connecting the N pairs of contact regions to opposite ends of the sensor lines on the N corner portions.
Dependencies are inferred from the claim text.