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:
Mar. 21, 1989
Filed:
May. 28, 1987
Kikuo Watanabe, Aichi, JP;
Mitsuo Kobayashi, Mie, JP;
Noboru Hirose, Aichi, JP;
Keiichi Sato, Aichi, JP;
Brother Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
A machine tool with a vertically reciprocating spindle head has an automatic tool changer including a rotatingly indexable tool support connected to the machine tool frame and vertically movable independently of the spindle head, a first cam-and-crank mechanism activated by spindle head vertical movement to move the tool support with the spindle head during a portion of the tool changing operation, a second cam-and-crank mechanism also activated by spindle head vertical movement for opening and closing a tool holder on the tool support during another portion of the tool changing operation, and a vertical stop for preventing vertical movement of the tool support with the spindle head into the machining region.