Title:
WINDING, METHOD FOR MANUFACTURING WINDING, WELDING ELECTRODE, AND MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/029532
Kind Code:
A1
Abstract:
The present invention is for manufacturing a winding so that a terminus of a metal wire will not damage other components or the like, without increasing the number of manufacturing steps and with the shortest possible distance from a welded part to a terminus edge, and avoiding manufacture of defective windings. The present invention provides a porous winding (filter 10) in which at least one continuous metal wire 20 is wound into a helical and multilayered shape. In the winding, a terminus 30 (metal wire portion 20n) of the metal wire is resistance spot-welded to another portion (metal wire portion 20m) of the metal wire, and fused at the welded spot. The terminus 30 (metal wire portion 20n) has a molten-solidified part 31n obtained by melting the entirety of the width direction of the metal wire and then solidifying the same.
Inventors:
YOSHIDA YUTAKA (JP)
MATSUMOTO TAKASHI (JP)
MATSUMOTO TAKASHI (JP)
Application Number:
PCT/JP2023/028133
Publication Date:
February 08, 2024
Filing Date:
August 01, 2023
Export Citation:
Assignee:
FUJI FILTER MFG CO LTD (JP)
International Classes:
B23K11/00; B01D39/20; B23K11/22; B60R21/264
Domestic Patent References:
| WO2005075050A1 | 2005-08-18 |
Foreign References:
| JP2023092075A | 2023-07-03 | |||
| JP2001171472A | 2001-06-26 | |||
| JP2011011219A | 2011-01-20 |
Attorney, Agent or Firm:
SUZUKI Hitoshi et al. (JP)
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