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. 03, 1998
Filed:
Oct. 28, 1996
Keum-Mo Kim, Seoul, KR;
Daewoo Electronics Co., Ltd., Seoul, KR;
Abstract
A head drum assembly of a VCR is disclosed which can prevent Jitter and Wow-flutter of signals while recording and reproducing signals and can additionally supply a lubricant. A bearing housing in which lubricant containing groove is formed is integrally formed with a lower drum. Two journal bearings are mounted on the inner side of the bearing housing and support and lubricate a shaft which drives an upper drum. The lubricant in each of the lubricant containing grooves flows into a clearance between the outer surface of the shaft and the inner surface of each of journal bearings along a path formed by the lubricant containing groove, slits, and the lubricating groove, so that an oil film is formed between the shaft and the inner surface of each of the journal bearings. The lubricant can be additionally supplied through lubricant supplying holes.