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. 23, 2007
Filed:
Mar. 18, 2004
Shigenori Takayama, Kitakyushu, JP;
Michiharu Tanaka, Kitakyushu, JP;
Shigenori Takayama, Kitakyushu, JP;
Michiharu Tanaka, Kitakyushu, JP;
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Abstract
Since a release voltage to a brake is applied by a plurality of series-connected contacts and at least one contact is a normally open contact of a relay for controlling a driving power supply of a motor, a control apparatus having a high safety characteristic for an industrial-purpose robot is provided, while even when fusion of a contact happens to occur, the control apparatus can firmly interrupt the application of the release voltage to the brake. Also, the control apparatus for the industrial-purpose robot is provided which need not be equipped with a power supply for releasing the brake by an operator in a manual manner. To this end, in a control apparatus of an industrial-purpose robot () equipped with an electromagnetic type brake () which locks a shaft of a motor, the control apparatus is provided with a first relay contact () which is closed when the electromagnetic type brake () is released, and a second relay contact () which is closed when driving electric power is supplied to the motor; and the first relay contact (), the second relay contact (), and the electromagnetic type brake () are series-connected to a drive-purpose power supply () of the electromagnetic type brake ().