Device for sewing or knitting machines for changing the spool for the looper thread

An embroidery machine and sewing technology, applied in the direction of bobbin winding, sewing machine components, sewing equipment, etc. in the sewing machine, can solve the problem that the bobbin case is no longer suitable for manual replacement, and achieve the effect of a simple method

Active Publication Date: 2007-04-04
ZOJE SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the structure of the bobbin case is thus slightly simplif...

Method used

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  • Device for sewing or knitting machines for changing the spool for the looper thread
  • Device for sewing or knitting machines for changing the spool for the looper thread
  • Device for sewing or knitting machines for changing the spool for the looper thread

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] In FIG. 1, 1 denotes the shuttle-side end of a horizontally arranged shuttle shaft, which is supported in the base plate of a double lock stitch sewing machine not shown in detail. A shuttle 2 connected to the shuttle shaft 1 cooperates in a known manner with a (not shown) needle guiding the sewing thread to form the seam.

[0032] Inside the shuttle 2 there is usually placed a bottom cover 3 for mounting a bobbin case 4 which itself carries a bobbin 5 for mounting a stored silk thread. For mounting the bobbin case 4, the bottom housing 3 has a pin 6, which is fastened in a known manner on the bottom side of the bottom housing 3 and is provided with a cutout 7 in the region of its free end. A locking element which fixes the bobbin case 4 to the dowel 6 cooperates with the cutout 7 and is designed as a locking slide 8 and is provided with a hole 9 surrounding the dowel 6 with a certain play. The locking slider 8 is arranged displaceably transversely to the longitudinal ...

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PUM

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Abstract

The invention relates to a device for double-thread lockstitch sewing or knitting machines, for exchanging the spool capsule housing the spool, housed in a sub-capsule in the shuttle and locked thereto by means of a locking element on a pin on the sub-capsule operated by a spool capsule lid, whereby, in order to open the spool capsule lid (12), an opening finger (25), displaceable between the above and the front face on the spool capsule (4) and a catcher device (50) are provided, comprising clamp jaws (38,42) engaging with the longitudinal edge surfaces (41,51) of the opened spool capsule lid (12), which together with the opening finger (25) may be displaced along a track, running parallel to the axis of the shuttle (2).

Description

technical field [0001] The present invention relates to a device for changing a bobbin for looping thread on a double lock stitch sewing or embroidery machine. Background technique [0002] Double lock stitch sewing machines usually have a shuttle with a hook tip that grips the loop of the sewing thread, and the shuttle also has an undercap (Unterkapsel) supported in the shuttle with the bobbin case accommodated by the undercase. Here the bottom cover is equipped with a tenon pin arranged concentrically with the shuttle shaft, which engages in a hollow cylinder arranged inside the bobbin case when it is inserted into the bottom cover, and which itself supports the bobbin which accommodates the loop thread reserve. [0003] In order to fix the bobbin case on the tenon of the bottom cover, it is equipped with a cutout in the area of ​​its end protruding from the bobbin center, and a set screw arranged on it engages in this cutout when the bobbin case is inserted into the botto...

Claims

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Application Information

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IPC IPC(8): D05B59/04
CPCD05B59/04
Inventor H-J·弗林斯菲利普·莫尔
Owner ZOJE SEWING MASCH CO LTD
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