Oil leakage preventive device of sewing machine

• Main Authors: NAKATA, KENICHI, TAKADA, TAKASHI, MIYATAKE, MASAO, NITTA, HIROYUKI, TOUME, FUMIO, HIGAKI, TAKASHI, TERAO, YOSHINORI
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2006
• Subjects: EMBROIDERING; SEWING; TEXTILES; TUFTING

This invention is to provide an oil leakage preventive device of a sewing machine, capable of reducing the oil leakage from an insertion window of an oil drainage guide base frame while reducing the total number of parts. The oil leakage preventive device of the sewing machine comprises an oil drainage seal with an engagement hole for a feed bar, the oil drainage guide base frame with a side inner wall and an upper inner wall, and an oil drainage guide plate for guiding the oil drainage seal close to the oil drainage guide base frame from the rear. The oil drainage seal, the oil drainage guide base frame and the oil drainage guide plate are supported on a frame. In addition, a mouth-shaped frame is mounted in the periphery of the insertion window of the oil drainage guide base frame, and the gap between the frame and the side inner wall and the gap between the frame and the upper inner wall are the same or larger than the thickness of the frame in the front/rear direction.