Title:
CASING CLOSED STRUCTURE AND METHOD
Document Type and Number:
Japanese Patent JP2020093464
Kind Code:
A
Abstract:
To be possible to prevent a melted main body side rib and a lid side rib from remaining in a raised state after welding and impairing an appearance; in the conventional structure, the main body side rib is erected on a peripheral wall of an opening, and the lid side rib is formed along an inside of the main body side rib on a circumference of the lid side, and the lid is welded to the main body side by simultaneously heating and melting the main body side rib and the lid side rib from tip sides to melt and weld each other.SOLUTION: A predetermined space is formed between a main body side rib and a lid side rib, and a portion where the main body side rib and the lid side rib are welded to each other is pushed into the predetermined space, and the welded portion is welded so that it does not rise.SELECTED DRAWING: Figure 3
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Inventors:
NAKAGAWA TOSHIHIKO
Application Number:
JP2018233080A
Publication Date:
June 18, 2020
Filing Date:
December 13, 2018
Export Citation:
Assignee:
RB CONTROLS CO
International Classes:
B29C65/20
Domestic Patent References:
| JPS61192542A | 1986-08-27 | |||
| JPS5143868B1 | 1976-11-25 | |||
| JP2016203477A | 2016-12-08 | |||
| JPH04303625A | 1992-10-27 |
Attorney, Agent or Firm:
Launch Yoji