JPS54141372A - Bundling method for metallic sheets - Google Patents
Bundling method for metallic sheetsInfo
- Publication number
- JPS54141372A JPS54141372A JP4878978A JP4878978A JPS54141372A JP S54141372 A JPS54141372 A JP S54141372A JP 4878978 A JP4878978 A JP 4878978A JP 4878978 A JP4878978 A JP 4878978A JP S54141372 A JPS54141372 A JP S54141372A
- Authority
- JP
- Japan
- Prior art keywords
- punched
- outer circumference
- acute angle
- edge
- projection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
PURPOSE: To strengthen the jointing force, by notching a part of outer circumference along the circular outer circumference, and by installing a punched projection being shaped so as to make its end to be an acute angle.
CONSTITUTION: A part of outer cirumference of the metallic sheet 1 is punched along the circular outer circumfeence 10 by the combined tools consisting of the punch provided with the edge 13 and the cylindrical die. Hereby, a part of outer circumference is shaped into a balance weight type projection, and both ends of the punched circular arc type outer circumference 10 forms an edge of acute angle. The metallic sheets, being thus provided with the punched projection, are piled up and are pressed; hereby, the balance weight type outer circumference 10 and the adjoining another metallic sheet's punched hole 12 are fitted to each other. Especially, since the dege 11 forms an acute angle, the edge 11 gnaws into the adjoining metallic sheet and engages together with. Hereupon, by the action of the burr at the punched part and the force of spring-back due to the residual stress, the joining force is further strengthened. Besides, the size, number and location of the punched projections are determined according to the size of the parts like as the iron core, etc., of the electric gears, the number of piling up, the electric characteristics, etc., and the shape can be changed invarious ways.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4878978A JPS54141372A (en) | 1978-04-26 | 1978-04-26 | Bundling method for metallic sheets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4878978A JPS54141372A (en) | 1978-04-26 | 1978-04-26 | Bundling method for metallic sheets |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54141372A true JPS54141372A (en) | 1979-11-02 |
JPS6246252B2 JPS6246252B2 (en) | 1987-10-01 |
Family
ID=12812993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4878978A Granted JPS54141372A (en) | 1978-04-26 | 1978-04-26 | Bundling method for metallic sheets |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54141372A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61249635A (en) * | 1985-04-26 | 1986-11-06 | Enami Seiki:Kk | Joining method for platelike member |
US4900636A (en) * | 1987-09-08 | 1990-02-13 | Nippondenso Co., Ltd. | Metal plate laminated body |
JP2009156321A (en) * | 2007-12-26 | 2009-07-16 | Ishikawa Gasket Co Ltd | Metal laminate cylinder head gasket |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4833871A (en) * | 1971-09-01 | 1973-05-14 |
-
1978
- 1978-04-26 JP JP4878978A patent/JPS54141372A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4833871A (en) * | 1971-09-01 | 1973-05-14 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61249635A (en) * | 1985-04-26 | 1986-11-06 | Enami Seiki:Kk | Joining method for platelike member |
JPH0460734B2 (en) * | 1985-04-26 | 1992-09-28 | Enami Seiki Kk | |
US4900636A (en) * | 1987-09-08 | 1990-02-13 | Nippondenso Co., Ltd. | Metal plate laminated body |
JP2009156321A (en) * | 2007-12-26 | 2009-07-16 | Ishikawa Gasket Co Ltd | Metal laminate cylinder head gasket |
JP4567722B2 (en) * | 2007-12-26 | 2010-10-20 | 石川ガスケット株式会社 | Metal laminated cylinder head gasket |
KR101100742B1 (en) | 2007-12-26 | 2011-12-30 | 이시카와 가스킷 가부시키가이샤 | Steel laminate cylinder head gasket |
Also Published As
Publication number | Publication date |
---|---|
JPS6246252B2 (en) | 1987-10-01 |
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