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. 15, 2011
Filed:
Feb. 15, 2008
Yoshihide Kiyosawa, Nagano-ken, JP;
Hiroki Hanaoka, Nagano-ken, JP;
Hiroshi Yamazaki, Nagano-ken, JP;
Yoshihide Kiyosawa, Nagano-ken, JP;
Hiroki Hanaoka, Nagano-ken, JP;
Hiroshi Yamazaki, Nagano-ken, JP;
Harmonic Drive Systems Inc., Tokyo, JP;
Abstract
A wave reduction gear () is disposed inside a device case () of a rotating table device (). Lubrication oil is sprayed from an oil supply channel (), which is formed in the device case (), toward an oil supply hole () formed in a cup-shaped flexible externally toothed gear (). A wave bearing () disposed in the interior is lubricated via the oil supply hole (). Lubricating oil that has entered into the flexible externally toothed gear () is forcibly suctioned to the exterior via an oil recovery channel () that is formed in the device case (). Accordingly, it will be possible to prevent oil from being suctioned due to the negative pressure state in the interior of the flexible externally toothed gear accompanying the high-speed rotation, and regions of the wave bearing () can be reliably lubricated.