Title:
工具および装置
Document Type and Number:
Japanese Patent JP6677588
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a tool and a device which enable chamfering and deburring work even when hole diameters of two through holes coaxially arranged are different.SOLUTION: A first cutter blade 3 includes a first blade part 3a and a first elastic part 3b. A first movable body 6 supports the first elastic part 3b from an inner periphery side of a tool body 2. A second cutter blade 4 includes a second blade part 4a and a second elastic part 4b. A second movable body 5 supports the second elastic part 4b from the inner periphery side of the tool body 2. A movable body attachment part 7 is attached to the tool body 2 along an axial direction A of a cylindrical portion 2a to move the first movable body 6 and the second movable body 5 in the axial direction A. An outer peripheral diameter RB of the second blade part 4a is smaller than an outer peripheral diameter RA of the first blade part 3a.SELECTED DRAWING: Figure 2
Inventors:
Maekawa Hajime
Megumi Sakai
Megumi Sakai
Application Number:
JP2016126571A
Publication Date:
April 08, 2020
Filing Date:
June 27, 2016
Export Citation:
Assignee:
KOMATSU LTD.
International Classes:
B23B29/03; B23B41/00; B23B51/10
Domestic Patent References:
| JP63035509U | ||||
| JP53022288U | ||||
| JP2015020253A | ||||
| JP2003145331A | ||||
| JP6198511A |
Foreign References:
| US3172309 |
Attorney, Agent or Firm:
Fukami patent office