SU30791A1 - Sewing machine for sewing machines - Google Patents

Description

The proposed machine for sewing machines is of the type in hall machines with the use of them, in order to grip the thread, moving in the axial direction and turning several tongue needles around its axis.

In FIG. 1 shows a general view of the appliance attached to a sewing machine; FIG. 2,3,4 - details of the device.

The device consists of a stationary ring /, into which the bent short fingers, provided with edges bent in movement with long ones, is inserted, another ring 2 rotatably in the ring /. This latter is attached to the housing of the apparatus 3, the rod 5 is inserted into the eyelet and is installed in such a way that it does not rotate around its axis, but only moves up and down by means of a spring b, which is put on the lower end of the rod 5, touching the upper end end needle bar of sewing machine. On the rod 5, two tongue-type needles are fastened in a spring-loaded shoe 7, which can turn and return to its previous position with the help of a corresponding spring. When the rod 5 moves upwards, its beveled end presses on the long finger of the ring 2 and moves it for some distance to the side, which causes the spring 8 to wind up, completing then the complete

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moving the ring over this period. The thread from the bobbin is threaded into the yarn feeder I binds to the long finger and is passed further through the bent finger. The needles fastened in block 7, when moving upward, embrace a bent finger on both sides, go by the thread, grab it with their hooks and drag it down. The bent end 10 of the cam //, which the lower hooks of the needles touch as they move downwards, deflects them to the side, whereby the thread hooks onto the bent finger, and the needles, having passed the cam / 7, assume the same vertical position. When the needles are lifted upward, their lower hooks engage the bent end 10 of the cam 11, rotate it and release it. At the first turn of the ring 2, only the thread is laid in a zigzag manner between the fingers along the Ring, during subsequent turns, each time the needles are lifted, the loops of the thread are dropped from the hook of the short finger. During the reverse course of the needles, they seize the right thread introduced by the yarn feeder 9, and this is done in a manner.

The subject matter of the invention.

1. In the zaletny device to sewing machines with use of mobile in the axial direction and rotary