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:
Jan. 17, 2017
Filed:
Apr. 01, 2011
Applicants:
Kenichi Okamoto, Tokyo, JP;
Yoshikatsu Hayashi, Tokyo, JP;
Mineo Okada, Tokyo, JP;
Inventors:
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/28 (2006.01); B66B 5/06 (2006.01); B66B 5/04 (2006.01);
U.S. Cl.
CPC ...
B66B 5/06 (2013.01); B66B 5/04 (2013.01);
Abstract
In an elevator apparatus, a car is suspended by a suspending device. A braking apparatus applies a braking force to the car by the suspending device. An excessive speed detection level that changes in response to car position is set in an excessive speed monitoring portion. The excessive speed monitoring portion makes the braking apparatus perform a braking operation when car speed reaches the excessive speed detection level. An anomalous acceleration detecting mechanism operates a safety device if acceleration that exceeds a preset set value arises in the car.