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Sewing machine and loop taker system for sewing machine

A sewing machine and hook technology, applied in the field of sewing machines, can solve problems such as cumbersome motion transmission

Active Publication Date: 2009-04-22
デュルコップアドラーアクチエンゲゼルシャフト
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage (of this sewing machine) is that the design and arrangement of the control curve and the transmission of the movement of the bobbin case lifter from the control curve to the bobbin case is very cumbersome

Method used

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  • Sewing machine and loop taker system for sewing machine
  • Sewing machine and loop taker system for sewing machine
  • Sewing machine and loop taker system for sewing machine

Examples

Experimental program
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Embodiment Construction

[0047] figure 1 The double lockstitch sewing machine shown generally comprises an upper arm 1 , a vertical column 2 and a lower box-like base 3 . In the arm 1 is installed an arm shaft 4 by which a needle bar 5 containing a needle 6 can be driven to move up and down. In addition, the arm shaft 4 drives a line rod 7 . In addition, in the path of the needle thread 8 from the thread feeder (not shown) to the needle 6 via the thread rod 7 , a thread tightening device 9 is provided in front of the thread rod 7 .

[0048] Such as figure 1 and 2 As shown, the illustrated embodiment is a so-called pillar sewing machine. This means that on the base plate 3 there is mounted a vertical support, a so-called column 10 , which serves as a hook support shell and has a hook support 11 mounted at the upper end. In this hook support 11 a vertical hook 12 , ie a double lockstitch hook 12 , is mounted for rotation about a vertical axis 13 . A hook drive shaft 14 , which drives the hook 12 a...

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Abstract

The invention relates to a hook system of a sewing machine, comprising a hook (12) provided with a spindle shell (22), as well as a spindle shell lifter (33); wherein the spindle shell lifter (33) comprises a lifter rod (32) placed against a lifter cam (31) of a spindle shell (21) and a sensor (37) contacted with a control curved part (39) which is driven to rotate around the axial line (13) of the hook (12); the spindle shell lifter (33) is arranged to pivot around an axial line (35) which is vertical to the axial line (13) of the hook (12); the axial distance between the control curved part (39) and the axial line (13) of the hook (12) is variable to be adapted to the deflexion of the sensor (37) in the direction of the axial line (13) of the hook (12).

Description

technical field [0001] The present invention relates to a sewing machine, comprising: [0002] -arm, [0003] - Substrate, [0004] - a needle supported in the arm for guiding the needle thread, which needle can be driven up and down, [0005] - hook piece, the hook piece [0006] -- Mounted on the substrate, [0007] -- can be driven to rotate about an axis in the direction of rotation by means of a hook drive shaft, and [0008] -- including the bottom side facing the drive shaft of the hook, [0009] - a bobbin case (bobbin case) mounted in the hook so as to be able to rotate freely relative to the hook, the bobbin case comprising: [0010] -- lift cam, and [0011] - a stop rib cooperating with a profiling portion (cam-like portion) fixed in position relative to the base plate to prevent the bobbin case from turning in the direction of rotation, [0012] - bobbin case lifter, which includes [0013] -- a lifting rod that can be placed against the lifting cam, and ...

Claims

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Application Information

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IPC IPC(8): D05B57/26D05B57/30D05B57/38
CPCD05B57/143D05B57/265D05B57/08D05B57/14D05B57/38
Inventor A·里弗尔C·黑克纳
Owner デュルコップアドラーアクチエンゲゼルシャフト
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