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AssigneeBrother Kogyo Kabushiki Kaisha
InventorsHiroaki Fukao, Teruhiko Ohkita, Nobusuke Nagasaka, Yukio Ichihara, Toshio Sasaki
Estimating the term…
This invention provides an overlock sewing machine with a threading mechanism that is both easier and more efficient to use. As shown in FIGS. 1 and 7, the overlock sewing machine has a vertically movable needle (6, 106), a looper carriage (18, 118) connected to a rotating shaft, and a looper (11, 111) on the end of the looper carriage. The looper extends laterally over the looper carriage and has a thread-receiving eye (11a, 111a). The looper and the needle cooperate to form a chain stitch. As shown in FIGS. 3 and 9, a thread-guiding member (25, 125) next to the looper pivots with the looper to guide a thread LT through the thread-receiving eye. A movable lever (30, 130) pivots with or relative to the looper. A thread-delivering member (39, 139) mounted on the movable lever that can be set in two positions: a first position corresponding to a first position of the thread-receiving eye, and a second position corresponding to the thread-guiding member. In the second position, the thread passes through the thread-guiding member.
An overlock sewing machine including at least one vertically movable needle, a looper carriage connected to a rotating shaft, a looper having a groove and connected to the looper carriage at one end, and having a thread-receiving eye at the other end, and extending laterally over the looper carriage, where the vertically movable needle forms a chain stitch in cooperation with the looper, the overlock sewing machine comprising:
Dependencies are inferred from the claim text.