Title:
TIP SAW
Document Type and Number:
WIPO Patent Application WO/2022/137576
Kind Code:
A1
Abstract:
[Problem] To provide a tip saw that can produce a clean cut surface when cutting a hollow work material. [Solution] A disk-shaped tip saw (10, 20) comprising a cutting blade piece 12 at a blade tip portion is characterized in that a support piece (13, 23) is disposed between adjacent two cutting blade pieces (12, 12), the cutting blade piece (12) and the support piece (13, 23) are configured to be thicker than a thickness D1 of a base metal (11, 21) of the tip saw (10, 20), (D2 > D1), and the support piece (13, 23) has a thickness equal to or nearly equal to the thickness D2 of the cutting blade piece (12), (D3 = D2, or D3 ≈ D2). Consequently, the width of a cut groove Pc formed on a work material P by the cutting blade piece (12) can be maintained wider than the thickness D1 of the base metal (11, 21) of the tip saw by the support piece (13, 23), without increasing the number of the cutting blade pieces (12) of the tip saw (10, 20).
Inventors:
KURIBAYASHI MINORU (JP)
Application Number:
PCT/JP2021/006559
Publication Date:
June 30, 2022
Filing Date:
February 22, 2021
Export Citation:
Assignee:
TATSUNO SAWING DR COMPANY (JP)
International Classes:
B23D61/02; B27B33/08
Domestic Patent References:
| WO2014065069A1 | 2014-05-01 |
Foreign References:
| US4173914A | 1979-11-13 | |||
| US5743163A | 1998-04-28 | |||
| JP2006305863A | 2006-11-09 | |||
| JP2001009633A | 2001-01-16 | |||
| JP2007144608A | 2007-06-14 | |||
| JP2009220548A | 2009-10-01 | |||
| US3576200A | 1971-04-27 |
Attorney, Agent or Firm:
SAEGUSA Hiroaki (JP)
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