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Thread winding housing for inserting into a housing receptacle of a gripper body, rotatable about a vertical axis, of a sewing machine

A vertical axis, sewing machine technology, applied in the direction of sewing machine components, sewing machine ring mechanism, sewing equipment, etc., can solve the problems of complicated thread insertion, damage to the effectiveness of sewing machines, and easy errors in installing bobbins, so as to avoid mutual interference , compact design, and improved operational safety

Active Publication Date: 2012-07-25
DURKOPP ADLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inserting the thread into this bobbin case is very complicated
Also, installing the bobbin case while inserting the hook is prone to errors, which can damage the effectiveness of the sewing machine

Method used

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  • Thread winding housing for inserting into a housing receptacle of a gripper body, rotatable about a vertical axis, of a sewing machine
  • Thread winding housing for inserting into a housing receptacle of a gripper body, rotatable about a vertical axis, of a sewing machine
  • Thread winding housing for inserting into a housing receptacle of a gripper body, rotatable about a vertical axis, of a sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The sewing machine 1 comprises a base plate 2 with a column 3 extending upwards from the base plate 2 and a curved arm 4 . Said arm 4 terminates in a head 5 . Mounted in the arm 4 for rotation is an arm shaft 6 , which drives a crank drive 7 in the head 5 , comprising a wire rod 8 . The crank drive 7 is actively / kinematically connected to the needle bar 9 which is mounted for movement in the head 5 . The needle bar 9 has a needle 10 at the lower end. The needle 10 can be moved up and down by the crank drive 7 , wherein the needle 10 passes through a movement space. The needle 10 guides the needle thread 13 with the needle eye, which is fed by the bobbin 12 via the thread tensioner and the thread rod 8 .

[0029] A support plate 16 on which a fabric 17 is placed is mounted on the base plate 2 by means of screws passing through the threaded holes 14 . The support plate 16 has a feed dog opening 18 designed to allow the passage of a feed dog 19 . Feed dog 19 has figu...

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PUM

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Abstract

A thread winding housing (25) serves for inserting into a housing receptacle of a gripper body (22), rotatable about a vertical axis, of a gripper (21) of a sewing machine. The thread winding housing (25) has a housing pot (33) for accommodating a thread winding with a thread (27). Serving to cover the thread winding is a housing cover (34). The latter has a first, bottom cover layer (36) with a central guide eye for the thread to pass through. A second, top cover layer (41) at least partly covers the first cover layer (36) in the region of a thread guide. A thread brake (65) interacts with athread guide section (64). The housing cover (34) is pivotably linked to the housing pot (33) and is connected to the latter. This results in a thread winding housing which simplifies the insertion of the thread winding with good operational reliability and availability of the sewing machine.

Description

technical field [0001] The invention relates to a bobbin case according to the preamble of claim 1 . Background technique [0002] A bobbin case of this type is disclosed in DE 614 062 . Inserting the thread into this bobbin case is very complicated. Also, installing the bobbin case while inserting the hook is prone to errors, which can damage the effectiveness of the sewing machine. [0003] Further embodiments of bobbin cases provided with sewing thread supply are disclosed in DE 25 40 994 A1, JP 01-281270 A and US 2 817 307 A. Contents of the invention [0004] The object of the present invention is to develop a bobbin case (bobbin case) of the type mentioned at the outset to facilitate the insertion of a bobbin while ensuring good reliability and availability of the sewing machine. [0005] This object is achieved according to the invention by a bobbin case having the features stated in the characterizing part of claim 1 . [0006] Unlike the case cover-housing bod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B57/26
CPCD05B57/265D05B57/14D05B57/26
Inventor S·勒米奇J·恩斯
Owner DURKOPP ADLER AG
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