JPS5517715A - Member such as pulley for clutch-outer or timing-belt and manufacturing method thereof - Google Patents
Member such as pulley for clutch-outer or timing-belt and manufacturing method thereofInfo
- Publication number
- JPS5517715A JPS5517715A JP8854078A JP8854078A JPS5517715A JP S5517715 A JPS5517715 A JP S5517715A JP 8854078 A JP8854078 A JP 8854078A JP 8854078 A JP8854078 A JP 8854078A JP S5517715 A JPS5517715 A JP S5517715A
- Authority
- JP
- Japan
- Prior art keywords
- teeth portions
- cylindrical
- teeth
- portions
- cylindrical drum
- 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
Abstract
PURPOSE: To remove boundary layers of organization between a cylindrical side wall and gear teeth portions and improve strength thereof by forming the gear teeth portions on a cylindrical drum by means of forging utilizing a pair of dies applied from the inner and outer surfaces of the cylindrical wall.
CONSTITUTION: Teeth portions 8 having channel type cross-sections are formed radially on a cylindrical portion 7 of a cylindrical drum type frame 2 used for cluth- outer and the like. Side walls 10, 11 of the tooth portion 8 are formed so that θ1 that means an angle between the inner surfaces 10a, 11a and directions of radii thereof is bigger than θ2 that means an angle between the outer surfaces 10b, 11b and directions of radii thereof and that the thickness of the side walls 10, 11 is increased as the length of radius thereof is increased. Radius of curvatures r1, r2 for the inner surfaces 12a, 12b of the top portion 12 for the teeth are kept in a relation of r1<r2. For the formation of the teeth portions 8, a pair of dies are utilized and a panch 20 is set at an inner side while a die 21 is applied at an outer side respectively of the work W formed to have a shape of a cylindrical drum, thereafter, a press member 23 is descended to expand a tooth portion W1 outwardly, and thus, the teeth portions are formed by forging. Consequently, boundary layers are not produced between the sylindrical side wall and the top portions of the teeth, and thereby, the strength of the teeth portions may be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8854078A JPS5517715A (en) | 1978-07-20 | 1978-07-20 | Member such as pulley for clutch-outer or timing-belt and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8854078A JPS5517715A (en) | 1978-07-20 | 1978-07-20 | Member such as pulley for clutch-outer or timing-belt and manufacturing method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5517715A true JPS5517715A (en) | 1980-02-07 |
JPS5748688B2 JPS5748688B2 (en) | 1982-10-18 |
Family
ID=13945671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8854078A Granted JPS5517715A (en) | 1978-07-20 | 1978-07-20 | Member such as pulley for clutch-outer or timing-belt and manufacturing method thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5517715A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5979662U (en) * | 1982-11-22 | 1984-05-29 | トヨタ自動車株式会社 | Timing gear sprocket rotation positioning device |
JP2010117006A (en) * | 2008-11-14 | 2010-05-27 | Toyota Motor Corp | Cylindrical object and friction engagement device using it |
JP2011202676A (en) * | 2010-03-24 | 2011-10-13 | O-Oka Corp | Gear including wave-like groove near dedendum |
CN104110446A (en) * | 2013-04-16 | 2014-10-22 | 内蒙古欧意德发动机有限公司 | Clutch gear hub, hydraulic automatic transmission and vehicle |
JP2018059530A (en) * | 2016-09-30 | 2018-04-12 | ダイハツ工業株式会社 | Power transmission mechanism |
CN114749552A (en) * | 2022-05-20 | 2022-07-15 | 无锡市通亦和精密机械有限公司 | Annular thin-wall part punch and clutch plate fine blanking process |
-
1978
- 1978-07-20 JP JP8854078A patent/JPS5517715A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5979662U (en) * | 1982-11-22 | 1984-05-29 | トヨタ自動車株式会社 | Timing gear sprocket rotation positioning device |
JPH0211641Y2 (en) * | 1982-11-22 | 1990-03-27 | ||
JP2010117006A (en) * | 2008-11-14 | 2010-05-27 | Toyota Motor Corp | Cylindrical object and friction engagement device using it |
JP2011202676A (en) * | 2010-03-24 | 2011-10-13 | O-Oka Corp | Gear including wave-like groove near dedendum |
CN104110446A (en) * | 2013-04-16 | 2014-10-22 | 内蒙古欧意德发动机有限公司 | Clutch gear hub, hydraulic automatic transmission and vehicle |
JP2018059530A (en) * | 2016-09-30 | 2018-04-12 | ダイハツ工業株式会社 | Power transmission mechanism |
CN114749552A (en) * | 2022-05-20 | 2022-07-15 | 无锡市通亦和精密机械有限公司 | Annular thin-wall part punch and clutch plate fine blanking process |
CN114749552B (en) * | 2022-05-20 | 2023-08-25 | 通亦和精工科技(无锡)股份有限公司 | Fine stamping process for clutch plate |
Also Published As
Publication number | Publication date |
---|---|
JPS5748688B2 (en) | 1982-10-18 |
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