Title:
インシュレータの製造方法
Document Type and Number:
Japanese Patent JP7121429
Kind Code:
B2
Abstract:
To provide an insulator which does not cause a deviation of each component after assembling, and is excellent in the accuracy of external appearance.SOLUTION: A first metal body 2 and a second metal body 4 are superimposed on each other so that a first main body part 2a of the first metal body 2 covers an acoustic absorption heat insulation body 3 after arranging the acoustic absorption heat insulation body 3 along a second main body part 4a of the second metal body 4. After that, by folding a hem flange part 44 arranged at an external peripheral edge part of the second main body part 4a, a deformation part 5c is formed by pressing and deforming the hem flange part so that a recess 5a is formed at one face of a superimposition part 5, and a protrusion 5b is formed at the other face. A salient part 7a which is turnable around a turning shaft extending along an external peripheral edge part of the second metal body 4, and salient in a fold-back direction is formed at a folding tool 7. The salient part 7a forms the deformation part 5c by making the folding tool 7 turn around the turning shaft, folding the hem flange part 44, and simultaneously, deforming the superimposition part 5 in a superimposition direction.SELECTED DRAWING: Figure 2
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Inventors:
Hayato Yamakawa
Toshiaki Egusa
Toshiaki Egusa
Application Number:
JP2021142759A
Publication Date:
August 18, 2022
Filing Date:
September 01, 2021
Export Citation:
Assignee:
Key Rex Co., Ltd.
International Classes:
F16L59/02; B32B3/04; B32B7/027; B32B15/00; B60K13/04; B62D25/20; F01N13/14; F01N13/18; F02B77/11; F02B77/13
Domestic Patent References:
| JP2006519710A | ||||
| JP201346930A | ||||
| JP2014117726A | ||||
| JP201578722A | ||||
| JP200199113A | ||||
| JP3258428A |
Foreign References:
| US20060207207 | ||||
| US20050102817 | ||||
| CN106270225A |
Attorney, Agent or Firm:
Katsumi Iseki
Wataru Onishi
Wataru Onishi
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