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. 23, 1990
Filed:
Nov. 09, 1989
Hideaki Katayama, Nagasaki, JP;
Toshifumi Murakami, Nagasaki, JP;
Koji Soeda, Kobe, JP;
Yoshiya Kubota, Toyota, JP;
Shoji Okamoto, Toyota, JP;
Akinori Kubota, Kobe, JP;
Michihito Kobayashi, Toyota, JP;
Masaaki Ijiri, Aichi, JP;
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Sumitomo Rubber Industries Ltd., Hyogo, JP;
Abstract
An upper metal mold clamp device in a tire vulcanizing machine of the type that an upper metal mold is detachably fixed to a bolster by rotating clamp rods vertically penetrating through the bolster and provided with clamp claws at their bottom ends, is improved. Drive units rotate the respective clamp rods independently of rotation of the other clamp rods. Nuts are mounted onto the bolster plate in an unrotatable but vertically movable manner, and threadedly engaged with male screws at the upper portions of the clamp rods. Hollow spaces for accommodating the clamp claws are formed around the clamp rods on the bottom surface of an upper heat plate held in contact with the upper metal mold.