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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10066725 B1

PDFFull Text
Expired
Date of Patent:
Sep. 04, 2018

Filed:

Aug. 15, 2017

Fiber reinforced resin gear, method of forming fiber reinforced resin gear by injection molding, fiber reinforced resin rotary body, method of forming fiber reinforced resin rotary body by injection molding

Applicant:

Enplas Corporation, Saitama, JP;

Inventors:

Masaomi Hashimoto, Saitama, JP;

Kazuma Yanagisawa, Saitama, JP;

Assignee:

ENPLAS CORPORATION, Saitama, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

William Kelleher

Assistant Examiner:

Gregory T Prather

Int. Cl.
CPC ...
B29C 45/00 (2006.01); F16H 55/06 (2006.01); B29C 45/40 (2006.01); B29C 45/27 (2006.01); B29K 105/14 (2006.01); B29L 15/00 (2006.01);
U.S. Cl.
CPC ...
F16H 55/06 (2013.01); B29C 45/0005 (2013.01); B29C 45/0025 (2013.01); B29C 45/401 (2013.01); B29C 45/2708 (2013.01); B29C 45/40 (2013.01); B29C 2045/0006 (2013.01); B29C 2045/0043 (2013.01); B29C 2045/0049 (2013.01); B29K 2105/14 (2013.01); B29L 2015/003 (2013.01); F16H 2055/065 (2013.01); Y10T 74/1987 (2015.01);
Abstract

Plural ejector pins are made to project before a molten resin containing reinforcing fibers is injected into an inside of a cavity through pin point gates in a web forming portion in the inside of the cavity and at positions outside the pin point gates in a radial direction. The ejector pins are retracted from the inside of the cavity after a flow of the molten resin containing reinforcing fibers injected into the inside of the cavity through the pin point gates impinges on the ejector pins and is divided and before a tooth portion forming portion in the inside of the cavity is filled with the molten resin containing reinforcing fibers. Accordingly, weld lines which extend along the radial direction are formed at positions outside the ejector pins in the radial direction, and the molten resin is filled in portions formed after the ejector pins are retracted.

Find Patent Forward Citations

Hashimoto, Masaomi. (2018). Fiber reinforced resin gear, method of forming fiber reinforced resin gear by injection molding, fiber reinforced resin rotary body, method of forming fiber reinforced resin rotary body by injection molding (U.S. Patent No. 10066725). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10066725

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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