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:
Jun. 30, 2015
Filed:
Feb. 09, 2011
Sun Ho Lim, Bucheon-si, KR;
Sun Ho Lim, Bucheon-si, KR;
SEJIN-IGB CO., LTD., , KR;
Abstract
Disclosed is a power transmission device. A power transmission device according to one embodiment of the present invention includes: an input gear connected to a motor so that the input gear may rotate by the motor in a forward and backward direction; a planetary gear train circumscribing the input gear with respect to the input gear and rotating in association with the rotation of the input gear; a ring gear inscribing the planetary gear train and rotating relative to the planetary gear train; a main frame having a plurality of rollers coupled along the circumferential direction and interacting with a rack, and coupled with the ring gear on the outside of the ring gear; an irrotational rear side fixture disposed on an area where the input gear is positioned; and an irrotational front side fixture disposed at the opposite side of the irrotational rear side fixture via the ring gear and the main frame therebetween and coupled with the irrotational rear side fixture.