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Title:
BROACHING TOOL
Document Type and Number:
WIPO Patent Application WO/2018/180156
Kind Code:
A1
Abstract:
An aspect of this broaching tool is provided with: a plurality of processing blade parts aligned along a central axis extending in the vertical direction; and a plurality of rake parts which are disposed between and connect the processing blade parts neighboring each other in the axial direction. Each of the processing blade parts has a plurality of teeth sections protruding outward in a radial direction. The plurality of teeth sections are arranged in parallel in the peripheral direction for each processing blade part, and are each arranged in parallel along the teeth sections and the axial direction of other processing blade parts. The outer diameters of the rake parts are smaller than the outer diameters of portions at which the teeth sections are provided in each of the processing blade sections neighboring each other in the axial direction. The plurality of processing blade parts and the plurality of rake parts are separate members from each other.

Inventors:
WATANABE, Masaru (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
TAMAKI, Koji (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
FURUKAWA, Tomohiro (338 Kuzetonoshiro-cho Minami-ku, Kyoto-sh, Kyoto 05, 〒6018205, JP)
Application Number:
JP2018/007563
Publication Date:
October 04, 2018
Filing Date:
February 28, 2018
Export Citation:
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Assignee:
NIDEC CORPORATION (338 Kuzetonoshiro-cho, Minami-ku Kyoto-sh, Kyoto 05, 〒6018205, JP)
International Classes:
B23D43/02; B23F21/26
Foreign References:
JPS62228329A1987-10-07
JP2010233291A2010-10-14
US4985609A1991-01-15
GB1365819A1974-09-04
EP0013189A11980-07-09
JP2012101487A2012-05-31
JP2009201258A2009-09-03
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