TW200636111A - Oil leakage prevention apparatus of upper looper mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a scraping off function for a surplus lubricant to be certainly and excellently exerted, to enable the long and stable maintenance of a prescribed oil leakage prevention capacity by avoiding the mixing of dust in the surplus lubricant and to enable the reuse of the surplus lubricant for the maintenance of the lubrication capacity for a vertical motion of an upper looper table. SOLUTION: The upper and lower penetrating slot holes 19 and 20 perpendicularly intersecting a penetration hole 7 for the upper loop table 8 to slidingly go up and down are bored in a cylindrical upper looper guiding body 6 which is engaged and supported in a circular hole 5 bored in an upper looper guiding member 3 fixed to a sewing machine frame to be rotatable around the center of the circle, and an oil seal ring 21 with an elastic lip 21a which elastically touches by sliding a peripheral surface 8a of the upper looper table 8 and scrapes off the surplus portion of the lubricant attached to the peripheral surface 8a and an oil absorbent ring 22 which can absorb and keep the scraped surplus lubricant are respectively engaged with the upper penetration long hole 19 and the lower penetration slot hole 20.