Mold type plastic gear
US6070484A · kind A · utility
75Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1998 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Apr 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1987
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A molded plastic circular gear which has removed its wall portions on the inside of a tooth root of its circumferential gear teeth portion. The gear has a circular rim formed at a distance from and on an inside of the tooth root. The gear is further formed by injection of resin through gates located in the web portion of the inside of the rim. The gear is further characterized in that the thickness in the axial direction of the web portion of the inside of the rim is made larger than that of the web portion on the outside of the rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.