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:
Dec. 11, 2001
Filed:
Feb. 25, 2000
Yukio Ogawa, Kanagawa, JP;
Nobuaki Hashimoto, Tokyo, JP;
Kabushiki Kaisha Tokyo Kikai Seisakusho, Tokyo, JP;
Abstract
At least two pairs of carrier arms are mounted to a rotary shaft for independent travel axially thereof while being constrained to joint rotation therewith. Each pair of carrier arms are disposed opposite each other axially of the shaft for rotatably holding one web roll therebetween via expansion chucks. An internally screw-threaded sleeve is rotatably mounted to each carrier arm and locked against axial displacement relative to the carrier arm. Rotatably supported on the shaft and extending parallel to its axis, a screw-threaded rod extends through, and is threadedly engaged with, the sleeves on each pair of carrier arms. A reversible electric motor is drivingly coupled to each threaded nut, and an additional similar motor to each threaded rod. Each pair of carrier arms are therefore not only independently movable toward and away from each other, as for chucking a web roll therebetween, but, together with the chucked web roll, jointly movable in either axial direction of the shaft for accurately positioning the web roll thereon.