Title:
射出成形樹脂歯車、射出成形樹脂回転体及び射出成形体
Document Type and Number:
Japanese Patent JP4229687
Kind Code:
B2
Abstract:
An injection molded resin gear 1 includes a rim 4 , a hub 3 and a web 5 which connects the rim 4 to the hub 3 . A plurality of ribs 7 for guiding a molten resin, which is injected from pin point gates 8 , to the hub 3 protrude from the outer periphery of the hub 3 on one side of the web 5 so as to correspond to the pin point gates 8 . The ribs 7 are formed so as to be recessed from the side face 10 of the hub 3 . In the connecting portions of the ribs 7 to the hub 3 , fillet portions 12 are formed for smoothly guiding the flow of the resin from the hub 3 toward the web 5 when the injection molded resin gear 1 is formed.
Inventors:
Koji Noguchi
Noguchi Tadashi
Noguchi Tadashi
Application Number:
JP2002353355A
Publication Date:
February 25, 2009
Filing Date:
December 05, 2002
Export Citation:
Assignee:
Enplus Inc.
International Classes:
B29C45/26; B29C45/27; B29C45/37; F16H55/06; B29L15/00
Domestic Patent References:
| JP9166199A | ||||
| JP7021321U | ||||
| JP2000173850A | ||||
| JP6006800U | ||||
| JP8025501A |
Attorney, Agent or Firm:
Hiroyoshi Katsumata