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.

Date of Patent:
Nov. 27, 2012

Filed:

Mar. 02, 2010
Applicants:

Shinji Ago, Tochigi, JP;

Yoshiaki Nakagawa, Tochigi, JP;

Inventors:

Shinji Ago, Tochigi, JP;

Yoshiaki Nakagawa, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G 47/91 (2006.01);
U.S. Cl.
CPC ...
Abstract

A workpiece pickup apparatus is provided. The workpiece pickup apparatus includes: a gripping unit which sucks a workpiece so as to lift up the workpiece; a lowering unit which lowers the gripping unit from a waiting position towards the workpiece; a detecting unit which detects a physical amount which corresponds to a force with which the gripping unit presses the workpiece; a comparison unit which compares the detected physical amount with a reference physical amount; and a controller which controls a movement of the gripping unit based on a comparison result of the detected physical amount and the reference physical amount.


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