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Patent Searching and Data


Title:
METHOD AND DEVICE FOR MANUFACTURING HELICAL COIL
Document Type and Number:
Japanese Patent JPH04157024
Kind Code:
A
Abstract:

PURPOSE: To wind the conductor to the winding frame in almost a helical shape by setting the mechanism for feeding the conductor which can twist the conductor nearby the bobbin.

CONSTITUTION: At first, an end part of the conductor is bitten in the caterpillar 34 and the conductor is fed. The conductor 3 is passed through the inlet roll 31, the central roll 32 and formed with bending and twisting at the outlet roll 33. That is, by setting the caterpillar 34, the inlet roll 31, and the central roll 32 to the positions relatively turning with the X axis as the center, an outline of the shape formed with the feeding mechanism is not damaged. By executing only a slight correction of twisting, inner surface and outside surface bending to this conductor 3, the forming to the prescribed shape can be made.


Inventors:
HATADA NAOZUMI
UENO SHIGEYASU
YAMAGIWA TAKESHI
WATANABE SHINOBU
SUZUKI SHOHEI
Application Number:
JP27628390A
Publication Date:
May 29, 1992
Filing Date:
October 17, 1990
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
G21B1/11; B21D7/08; B21D11/06; G21B1/00; H01F5/00; (IPC1-7): B21D7/08; B21D11/06; G21B1/00; H01F5/00
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)