JPS6460247A - Manufacture of yoke for motor - Google Patents
Manufacture of yoke for motorInfo
- Publication number
- JPS6460247A JPS6460247A JP21271187A JP21271187A JPS6460247A JP S6460247 A JPS6460247 A JP S6460247A JP 21271187 A JP21271187 A JP 21271187A JP 21271187 A JP21271187 A JP 21271187A JP S6460247 A JPS6460247 A JP S6460247A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- projections
- recesses
- recess
- steel board
- 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.)
- Pending
Links
Abstract
PURPOSE:To improve quality of yoke, by employing a predetermined arched shape at the joint of the yoke and securing the projecting part firmly to the recessed portion. CONSTITUTION:When a yoke is manufactured, yoke material, i.e. a steel board 1, is pressed rectangularly to provide a plurality of recesses 2 at one end 1a, i.e. a part to be jointed, and projections 3 are provided at the other end 1b while facing with the recesses 2. The recesses 2 have arched inner circumferences enlarging toward the rear while the projections 3 have widths A' approximately equal to or smaller than the inlet dimension A of the recess 2, and thereby the projections 3 can be inserted from circumferential direction into the recesses 2 when the steel board 1 is rounded. Since jointing parts 1a, 1b are contacted tightly except the part between the recess 2 and the projection 3 during inserting process, linear jointing parts can be contacted tightly by expanding the projections 3 under this state by means of an expander 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21271187A JPS6460247A (en) | 1987-08-28 | 1987-08-28 | Manufacture of yoke for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21271187A JPS6460247A (en) | 1987-08-28 | 1987-08-28 | Manufacture of yoke for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6460247A true JPS6460247A (en) | 1989-03-07 |
Family
ID=16627164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21271187A Pending JPS6460247A (en) | 1987-08-28 | 1987-08-28 | Manufacture of yoke for motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6460247A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001178029A (en) * | 1999-12-17 | 2001-06-29 | Kokusan Denki Co Ltd | Flywheel magnet stator |
| US6804874B2 (en) | 2000-09-12 | 2004-10-19 | Denso Corporation | Method of manufacturing yoke of rotary electric machine |
| FR2884066A1 (en) * | 2006-03-29 | 2006-10-06 | Denso Corp | Rotating machine e.g. electric starting motor, cylinder head, has concave parts comprising lateral walls with notches in which localized expanded parts are adjusted, when caulking press work is executed on lateral walls of protrusions |
| JP2006280146A (en) * | 2005-03-30 | 2006-10-12 | Denso Corp | Yoke of rotating electric machine and manufacturing method thereof |
| US7874061B2 (en) | 2005-12-02 | 2011-01-25 | Denso Corporation | Manufacturing method of a yoke of rotary electric machine |
-
1987
- 1987-08-28 JP JP21271187A patent/JPS6460247A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001178029A (en) * | 1999-12-17 | 2001-06-29 | Kokusan Denki Co Ltd | Flywheel magnet stator |
| US6804874B2 (en) | 2000-09-12 | 2004-10-19 | Denso Corporation | Method of manufacturing yoke of rotary electric machine |
| US7168151B2 (en) | 2000-09-12 | 2007-01-30 | Denso Corporation | Method of manufacturing yoke of rotary electric machine |
| JP2006280146A (en) * | 2005-03-30 | 2006-10-12 | Denso Corp | Yoke of rotating electric machine and manufacturing method thereof |
| US7694408B2 (en) | 2005-03-30 | 2010-04-13 | Denso Corporation | Method of manufacturing yoke of electric rotary machine |
| US7874061B2 (en) | 2005-12-02 | 2011-01-25 | Denso Corporation | Manufacturing method of a yoke of rotary electric machine |
| DE102006056163B4 (en) | 2005-12-02 | 2018-05-24 | Denso Corporation | Yoke of a rotating electrical machine and method of making the same |
| FR2884066A1 (en) * | 2006-03-29 | 2006-10-06 | Denso Corp | Rotating machine e.g. electric starting motor, cylinder head, has concave parts comprising lateral walls with notches in which localized expanded parts are adjusted, when caulking press work is executed on lateral walls of protrusions |
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