Disk cutter

• US 20040065183A1
• Filed: 04/01/2003
• Published: 04/08/2004
• Est. Priority Date: 10/03/2002
• Status: Abandoned Application

• Current Assignee: Tenryu Seikyo Kabushiki Kaisha
• Original Assignee: Tenryu Seikyo Kabushiki Kaisha
• Inventors: Asada, Tanehiko
• Application Number:
  US10/402,974
• Publication Number:
  US 20040065183A1
• Time in Patent Office: Days
• US Class Current: 83/838
• CPC Class Codes: B23D 61/021 Types of set; Variable teeth, e.g. variable in height or gullet depth: Varying pitch; Details of gullet
• CPC Class Codes: B23D 61/04 with inserted saw teeth the teeth being individually inserted
• CPC Class Codes: Y10T 83/9326 Plural separable sections
• CPC Class Codes: Y10T 83/9353 Including raker tooth group

Abstract

Disclosed herein is a disk cutter including an annular disk-shaped base adapted to be driven about an axis of rotation, a plurality of tip supports formed along the outer circumference of the base integrally therewith so that a gullet is defined between adjacent ones of the tip supports, and a plurality of cutting tip inserts respectively fixed to the tip supports. Each of the cutting tip inserts has a pair of rakes inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a first V-shaped groove, and a pair of flanks inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a second V-shaped groove. The pair of rakes are formed in symmetry with respect to the center of the thickness of each tip insert, and the pair of flanks are also formed in symmetry with respect to the center of the thickness of each tip insert.

Claims

1. A disk cutter comprising:

an annular disk-shaped base adapted to be driven about an axis of rotation;

a plurality of tip supports formed along the outer circumference of said base integrally therewith so that a gullet is defined between adjacent ones of said tip supports; and

a plurality of cutting tip inserts respectively fixed to said tip supports;

each of said cutting tip inserts having a pair of rakes inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a first V-shaped groove, and a pair of flanks inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a second V-shaped groove.

2. A disk cutter according to claim 1, wherein said first V-shaped groove is formed with a groove extending along the center of the thickness of each tip insert in a radial direction of said base.

3. A disk cutter according to claim 1, wherein said pair of rakes are formed in symmetry with respect to the center of the thickness of each tip insert, and said pair of flanks are formed in symmetry with respect to the center of the thickness of each tip insert.

4. A disk cutter according to claim 3, wherein the angle of inclination of each of said rakes is set in the range of 15 to 40°

, and the angle of the inclination of each of said flanks is set in the range of 15 to 40°

.

5. A disk cutter comprising:

an annular disk-shaped base adapted to be driven about an axis of rotation;

a plurality of tip supports formed along the outer circumference of said base integrally therewith so that a gullet is defined between adjacent ones of said tip supports;

a plurality of first cutting tip inserts fixed to a given number of ones of said tip supports and intermittently arranged along the outer circumference of said base; and

a plurality of second cutting tip inserts fixed to the remaining tip supports;

each of said first cutting tip inserts being selected from the group consisting of a plain tip insert and a trapezoidal tip insert;

each of said second cutting tip inserts having a pair of rakes inclined from the opposite side surfaces of each second cutting tip insert to the center of the thickness of each second cutting tip insert so as to define a first V-shaped groove, and a pair of flanks inclined from the opposite side surfaces of each second cutting tip insert to the center of the thickness of each second cutting tip insert so as to define a second V-shaped groove.

6. A disk cutter according to claim 5, wherein said first V-shaped groove is formed with a groove extending along the center of the thickness of each second cutting tip insert in a radial direction of said base.

7. A disk cutter according to claim 5, wherein said pair of rakes are formed in symmetry with respect to the center of the thickness of each second cutting tip insert, and said pair of flanks are formed in symmetry with respect to the center of the thickness of each second cutting tip insert.

8. A disk cutter according to claim 7, wherein the angle of inclination of each of said rakes is set in the range of 15 to 40°

, and the angle of the inclination of each of said flanks is set in the range of 15 to 40°

.