The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2001
Filed:
Feb. 26, 2001
Denso Corporation, Kariya, JP;
Abstract
A plurality of first projections,are provided in a first side wall portion,of a grooved section,formed by bending part of a sheet-like workpiece to have a U-shaped cross-section, which projections extend away from a connecting portion (top),. Since the first side wall portion,deforms to widen a groove width of the grooved section,due to spring-back, a tip end of the first projection,is first brought into contact with the inner wall,. Therefore, a reaction force against the compressive force is applied to the tip end of the first projection during the pre-assembly process. Since the tip end of the first projection,is not movable due to the contact with the inner wall,, a bending moment is applied to the first side wall portion,and the connecting portion,to reduce the groove width. Accordingly, as the compression progresses, the inserting section,is automatically rolled in the grooved section,to ensure secure brazing between the grooved section,and the inserting section