Title:
WELDING DEVICE AND WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/079651
Kind Code:
A1
Abstract:
The purpose of the present invention is to reduce unwelded portions of a web and a strip-shaped member. This welding device includes: a pair of pressing members 3 for pressing a web 1 and a strip-shaped member 2; a feed device 4 for continuously or intermittently feeding the web 1 and the strip-shaped member 2 so as to pass between the pair of pressing members 3; and a laser device 5 for directing a laser beam 50 at the web 1 or the strip-shaped member 2 at a position upstream of the pair of pressing members 3. The welding device may comprise a movement device 6 that, while the feeding is stopped, moves the pair of pressing members 3 upstream of the web 1 and the strip-shaped member 2. Alternatively, the feeding device 4 may stop the web 1 and the strip-shaped member 2 after returning the web 1 and the strip-shaped member 2 by a given length.
Inventors:
TOTANI MIKIO (JP)
ODANI TATSUO (JP)
UEDA TOSHINORI (JP)
ODANI TATSUO (JP)
UEDA TOSHINORI (JP)
Application Number:
PCT/JP2020/034834
Publication Date:
April 29, 2021
Filing Date:
September 15, 2020
Export Citation:
Assignee:
TOTANI CORP (JP)
International Classes:
B31B70/64; B29C65/16
Domestic Patent References:
| WO2019097942A1 | 2019-05-23 | |||
| WO2016163487A1 | 2016-10-13 | |||
| WO2019097942A1 | 2019-05-23 | |||
| WO2016163487A1 | 2016-10-13 |
Foreign References:
| JP2017047622A | 2017-03-09 | |||
| JP2015123644A | 2015-07-06 | |||
| JPS6023293B2 | 1985-06-06 | |||
| JPS5619268B2 | 1981-05-06 |
Other References:
See also references of EP 4049838A4
Attorney, Agent or Firm:
MINORI PATENT PROFESSION CORPORATION (JP)
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