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, 2018
Filed:
Apr. 24, 2012
Chikara Takagi, Hashima, JP;
Chikara Takagi, Hashima, JP;
FUJI SEIKO CO., LTD, , JP;
FUJI SHOJI CO., LTD., , JP;
Abstract
A rotary body is divided into four to form multiple partitioned members. A chuck mechanism includes an expanding and contracting mechanism that expands and contracts each partitioned member in a radial direction of the rotary body. The chuck mechanism mounts and dismounts the beginning of a wire in an interlocked relationship with expansion and contraction of each partitioned member. The expanding and contracting mechanism includes a guide member that moves each partitioned member back and forth in the radial direction, and a cam member that moves each partitioned member between a large-diameter position and a small-diameter position. The chuck mechanism includes a chuck arm, a coil spring that biases the chuck arm in a direction in which the chuck arm is closed, an arm member that opens and closes the chuck arm, and a cam actuator that makes the arm member pivot.