JPS60158584U - Sewing machine needle thread loop control mechanism - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a partially sectional front view of the rotary hook, Figure 2 is a perspective view of the loop guide, Figure 3 is the second embodiment of the loop guide, and Figure 4 is the third embodiment of the loop guide. This is an example. 20 is a feed dog, 21 is a needle hole, 22 is a throat plate, and 24 is a loop guide.

Claims (1)

[Claims for Utility Model Registration] A needle bar that moves up and down in conjunction with the main shaft and moves in the cloth feeding direction with the needle stuck in the cloth, and a needle bar that moves in four directions in conjunction with the main shaft to move the needle in the cloth feeding direction. A feed dog that feeds cloth in synchronization; a rotary hook that rotates in conjunction with the main shaft to capture a needle thread loop, expand the needle thread loop so as to go around the inner hook, and then release the needle thread loop; In a needle feed sewing machine equipped with a thread take-up that loosens the needle thread that rotates around the inner hook of the rotary hook in conjunction with the sewing machine main shaft and picks up the needle thread loop released from the rotary hook, the needle thread loop is released from the rotary hook and the inner hook is stopped. A loop guide that contacts and guides the raised needle thread loop when it is removed from the inner hook stopper to prevent thread fraying of the needle thread loop is placed below the feed dog and the needle hole so that it moves in synchronization with the feed dog. A needle thread loop control mechanism for a sewing machine, characterized in that it is provided with a needle thread loop control mechanism.