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.

Date of Patent:
Apr. 23, 2019

Filed:

Jul. 27, 2017
Applicant:

Toyo Tire & Rubber Co., Ltd., Itami-shi, Hyogo, JP;

Inventors:

Takashi Kitamura, Osaka, JP;

Hiroshi Ikegami, Osaka, JP;

Assignee:

Toyo Tire Corporation, Itami-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 47/16 (2006.01); B29D 30/00 (2006.01); B29C 47/08 (2006.01); B29C 47/36 (2006.01); B29C 47/92 (2006.01); B29D 30/30 (2006.01); B29C 47/38 (2006.01); B29D 30/62 (2006.01); B29C 47/00 (2006.01); B29K 21/00 (2006.01);
U.S. Cl.
CPC ...
B29D 30/0061 (2013.01); B29C 47/0813 (2013.01); B29C 47/16 (2013.01); B29C 47/165 (2013.01); B29C 47/364 (2013.01); B29C 47/38 (2013.01); B29C 47/92 (2013.01); B29D 30/3007 (2013.01); B29D 30/62 (2013.01); B29C 47/0021 (2013.01); B29C 2947/92628 (2013.01); B29C 2947/92885 (2013.01); B29C 2947/92904 (2013.01); B29D 2030/3078 (2013.01); B29K 2021/00 (2013.01);
Abstract

The sheet-like rubber forming device has a die body which has an opening having a predetermined cross sectional shape, and a variable die lip which is arranged in a front side of the die body and can change the height of the opening. The variable die lip is constructed by a first movable body and a second movable body. The die lip control unit controls the variable die lip so as to drive the first movable body in an opening direction from a state in which the first movable body and the second movable body are closed when the forming is started, hold the positions of the first movable body and the second movable body after reaching a predetermined height, and drive the second movable body in a closing direction when the forming is finished.


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