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Title:
METHOD AND DEVICE FOR FORMING SLIT FOR FITTING OF SAW-TOOTH TIP
Document Type and Number:
Japanese Patent JP2018069351
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To correctly and efficiently perform formation of a slit for fitting a tip to a saw plate.SOLUTION: According to this method, an original tooth 15, which comprises irregularities of a tooth tip part 15b and a tooth bottom part 15a, is punched and formed at one end of a saw plate 3 in a width direction, and thereafter, a slit 10b, in which a saw-tooth tip 5 is inserted, fitted and fixed, is punched and formed on the tooth tip part 15b side. A press device 1 comprising a punch 29 for punching and a die 19, in which a contour of a punching blade 51 of the punch 29, which is inserted in a punching hole 52 on the die 19 side, comprises a wide preliminary punching blade 51b which punches a preliminary punching part 10a on the tooth tip part side of the saw plate 3, and a slit punching blade 51c which projects toward a tooth root side with respect to the preliminary punching blade 51b on the tooth tip side in a plan view, and which punches a narrow slit 10b in which the saw-tooth tip 5 is inserted and fixed.SELECTED DRAWING: Figure 4

Inventors:
IWASAKI YOSHIHIRO
NAGASE HIDEO
MATSUO TETSUYA
TAKIYAMA NAOYUKI
Application Number:
JP2016208734A
Publication Date:
May 10, 2018
Filing Date:
October 25, 2016
Export Citation:
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Assignee:
IWASAKI METATE KAKOSHO KK
SHIMANE PREFECTURE
International Classes:
B23D65/02; B21D28/00; B21D28/20; B21D37/12; B21D43/00; B23D61/14
Attorney, Agent or Firm:
河野 誠
河野 生吾
楠 和也



 
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