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:
May. 12, 1992
Filed:
Apr. 18, 1991
Applicant:
Inventors:
Yasushi Ito, Hadano, JP;
Tamio Otani, Hadano, JP;
Tadanori Dobashi, Kawasaki, JP;
Akira Irie, Kanagawa, JP;
Akihiro Matsuya, Ebina, JP;
Assignee:
Hitachi Seiko Ltd., Ebina, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q / ;
U.S. Cl.
CPC ...
483-1 ; 211-157 ; 483 56 ; 483 57 ; 483 61 ;
Abstract
A device for exchanging tools for use with a spindle has a tool holding device having a plurality of tool holding members disposed at predetermined intervals. Each tool holding member is supported for movement in its axial direction and is axially driven by a drive device so that a tool is transferred between the tool holding member and the spindle. The invention is also concerned with a tool exchanging method.