Title:
BOREHOLE CUTTING TOOL
Document Type and Number:
Japanese Patent JP2756382
Kind Code:
B2
Abstract:
PURPOSE: To provide a borehole cutting tool capable of fastening and fixing a cutter plate not to be shifted in the interior of a tool head and completely inhibiting turning or tilting of a knife edge to a fastening shoe even if the diameter of the cutter plate is very small.
CONSTITUTION: The front surface 19 of a cutter is provided with at least two grooves which extend essentially parallel and preferably symmetrical with respect to the longitudinal axis of the cutter plate 3. The grooves 37 cooperate with projections provided on the support surface of the fastening shoe 5 on the cutter front surface side and form a shape restrictive rotation inhibiting part.
Inventors:
DEIITAA KURESU
FURIIDORIHI HEEBERURE
FURIIDORIHI HEEBERURE
Application Number:
JP27092891A
Publication Date:
May 25, 1998
Filing Date:
October 18, 1991
Export Citation:
Assignee:
MAPARU FUABURIIKU FUYUA PURECHIJIONSUBERUKUTSUOIGE DOKUTORU KURESU KG
International Classes:
B23B27/00; B23B27/08; B23B51/00; B23B27/16; B23B29/02; B23B29/03; B23B51/04; B23D77/02; (IPC1-7): B23B51/00
Domestic Patent References:
| JP60141408A | ||||
| JP5969801U |
Attorney, Agent or Firm:
Takehisa Ito