Title:
ヘリカルブレードカッター
Document Type and Number:
Japanese Patent JP5757642
Kind Code:
B2
Abstract:
A helical blade cutter with excellent economical performance and excellent handling performance is provided capable of minimizing an economical loss to be caused by damage on a blade, facilitating attachment and exchange of the blade, and reducing manufacturing cost. The helical blade cutter includes multiple linear blades 20 attached to an outer circumferential surface of a round body 10 having an outer surface formed into a cylindrical circumferential surface. The blades 20 are arranged at given intervals in a circumferential direction of the outer circumferential surface. The blades 20 tilt to a given helix angle ± from a straight line on the outer circumferential surface parallel to a rotational central axis O. Blade attachment surfaces 13 are formed on the outer circumferential surface of the round body 10 at given intervals in the circumferential direction. The blade attachment surfaces 13 tilt to an angle same as the helix angle ± of the blade 20 while tilting to a rake angle ² in a direction of an elevation angle from a tangent to the outer circumferential surface. The blade attachment surfaces 13 are each formed through intervention of a step 14 resulting from the tilt in the direction of the elevation angle. The blades 20 are each attached to a blade attachment part 17 through intervention of a chip holder 30 in a manner that allows detachment of the blade 20. The blade attachment part 17 has an L shape in cross section resulting from being surrounded by the blade attachment surface 13 and the step 14.
Inventors:
Takahiro Tanaka
Satoshi Tsuruta
Yu Kadono
Satoshi Tsuruta
Yu Kadono
Application Number:
JP2014545992A
Publication Date:
July 29, 2015
Filing Date:
March 29, 2013
Export Citation:
Assignee:
Nakata Manufacturing Co., Ltd.
International Classes:
B23C5/04; B23C5/22
Domestic Patent References:
| JP61288913A | ||||
| JP8047811A | ||||
| JP2006281371A | ||||
| JP2010023143A |
Foreign References:
| US2188743 | ||||
| US3785417 |
Attorney, Agent or Firm:
Takahiko Yanagita