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.:
Date of Patent:
Oct. 05, 1993
Filed:
Oct. 18, 1991
Tadanobu Iwasa, Inazawa, JP;
Tatsuhiko Nagata, Inazawa, JP;
Toshiki Iwata, Inazawa, JP;
Hiroyasu Kozawa, Inazawa, JP;
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Abstract
A method and a device for forming a molded portion at an end of an extruded weather strip. The method includes the steps of placing the end of the extruded weather strip made of foamed elastic material in a cavity defined by a movable upper mold member and a fixed lower mold member which composes a mold, closing the mold with the end of the extruded weather strip clamped by a predetermined clamping force, injecting a foamable molding material into the cavity, moving the upper mold member up by an force not more than the clamping amount in the process of foaming of the foamable molding material to reduce clamping of the upper mold member and to enlarge the cavity, continuing molding with the upper mold member moved up until the foamable molding material fills the enlarged cavity, and opening the mold when molding of the molded portion is completed. The device has a fixed lower mold member, a movable upper mold member, a servomotor, and power transmission means for connecting the servomotor to the upper mold member and converting a rotary movement of the servomotor to a vertical movement of the upper mold member, whereby the upper mold member is moved up and down by a predetermined amount and in a predetermined timing.