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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 10751925 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Sep. 01, 2016

Weather strip and method for manufacturing same

Applicants:

Keiji Hiroe, Obu, JP;

Kotaro Oka, Obu, JP;

Inventors:

Keiji Hiroe, Obu, JP;

Kotaro Oka, Obu, JP;

Assignee:

TOKAI KOGYO CO., LTD., Obu-shi, JP;

Attorney:

Oliff PLC

Primary Examiner:

Jerry E Redman

Int. Cl.
CPC ...
E06B 7/22 (2006.01); B29C 48/30 (2019.01); B60J 10/24 (2016.01); B60J 10/84 (2016.01); B29C 48/92 (2019.01); B60J 10/16 (2016.01); B29C 48/495 (2019.01); B60J 10/21 (2016.01); B60J 10/27 (2016.01); B29C 48/21 (2019.01); B29C 48/12 (2019.01); B29K 23/00 (2006.01); B29K 105/24 (2006.01); B29L 31/30 (2006.01);
U.S. Cl.
CPC ...
B29C 48/30 (2019.02); B29C 48/12 (2019.02); B29C 48/21 (2019.02); B29C 48/495 (2019.02); B29C 48/92 (2019.02); B60J 10/16 (2016.02); B60J 10/21 (2016.02); B60J 10/24 (2016.02); B60J 10/27 (2016.02); B60J 10/84 (2016.02); B29K 2023/16 (2013.01); B29K 2105/24 (2013.01); B29L 2031/3005 (2013.01);
Abstract

An extrusion die includes a die and a core, and the core includes a movable core portion that is movable along an extrusion direction and a fixed core portion. The movable core portion has non-similar cross-sectional shapes at front and rear two positions along the extrusion direction. A first portion of the elongated weather strip is molded in a state where the movable core portion is disposed at an advance position, and a second portion of the elongated weather strip is molded in a state where the movable core portion is disposed at a retreat position. During the molding of the second portion, a supply amount per unit time of a material for the sealing portion to a molding space for the hollow sealing portion that is secured between the core and the die is set to be larger than that during the molding of the first portion.

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