Title:
COLD WELDING DIE AND WIRE ROD
Document Type and Number:
WIPO Patent Application WO/2014/087865
Kind Code:
A1
Abstract:
A cold welding die (1), which is provided with two paired dies (100, 101) configuring coil chucks (2) for gripping wire rods (11a, 11b) with paired die pieces (1a - 1d) and which joins the wire rods (11a, 11b) with each other by abutting the paired dies (100, 101) so that the wire rods (11a, 11b) gripped by the coil chucks (2) abut against each other. For the coil chucks (2), the inside diameter of the inner wall section (2a) of the portion for abutting the wire rods (11a, 11b) against each other is formed to be larger than the inside diameter of the bore section (2b) of the portion for gripping the wire rods (11a, 11b).
Inventors:
OKA KEIICHIRO (JP)
KAWASHIMA TATSUO (JP)
HIROTA KAZUAKI (JP)
AKITA HIROYUKI (JP)
KAWASHIMA TATSUO (JP)
HIROTA KAZUAKI (JP)
AKITA HIROYUKI (JP)
Application Number:
PCT/JP2013/081620
Publication Date:
June 12, 2014
Filing Date:
November 25, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B23K20/00; B21F15/04; B23K20/26
Foreign References:
| JPH09270291A | 1997-10-14 | |||
| JPH0634882U | 1994-05-10 | |||
| JPH11285861A | 1999-10-19 | |||
| JPH10128561A | 1998-05-19 | |||
| JPH0857662A | 1996-03-05 | |||
| JPH0191979A | 1989-04-11 | |||
| JPS57190790A | 1982-11-24 |
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
Keigo Murakami (JP)
Keigo Murakami (JP)
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