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Patent Searching and Data


Title:
PRODUCTION OF TRIMMER EDGE
Document Type and Number:
Japanese Patent JPS61219428
Kind Code:
A
Abstract:

PURPOSE: To produce the fixed edge for trimmer by a simple process by subjecting the edge point part to C-shaped beveling and R-shaped cornering simultaneously with bending the edge blank which forms a long hole in angle shape by the upper and lower pressing metal dies.

CONSTITUTION: A pressing is performed by enclosing between the upper and lower press metal dies 2, 3 of a pressing machine 1 the edge blank 4 blanked from a metallic plate after forming long holes 5, 6 on the blank 4 by punching. An angle projection part 8, pit part 9, recessed part 10 and C-shaped beveling part 11 are formed on said upper press metal die 2 and on the other hand the lower press metal die 3 has the projecting part 7 to locate said long hole 5, the first and second recessed parts 12, 13 and R-shaped beveling part 14. An edge member 18 is obtd. by forming C-shaped face 16 and R-shaped face 17 on an edge point part 15 as well as bending in angle shape the edge blank 4 by said pressing. With a lap grinding after forming a sinking comb 19 on the edge point part 15 by cutting then the trimmer edge of good quality is obtd. without any burring thereafter.


Inventors:
YUASA YUZURU
Application Number:
JP5926085A
Publication Date:
September 29, 1986
Filing Date:
March 23, 1985
Export Citation:
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Assignee:
SANYO ELECTRIC CO
International Classes:
B26B19/04; B21D5/01; B21D13/04; B21D53/64; B23P15/40; B26B19/06; (IPC1-7): B21D13/04; B23P15/40; B26B19/04
Attorney, Agent or Firm:
Koji Yasutomi (1 person outside)