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Round-head keyhole sartorius

A sewing machine and buttonhole technology, which is applied to sewing machine components, needle holders for sewing machines, sewing equipment, etc., can solve the problems of wear and sintering of sliding parts.

Active Publication Date: 2007-03-07
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the needle bar up-and-down movement mechanism of the buttonhole sewing machine recorded in the above-mentioned Japanese Patent Publication Heisei 7th No. 313772 adopted the up-and-down movement transmission mechanism with a free joint like a universal joint, along with the sewing speed High speed, there are problems of wear and sintering of multiple sliding parts of the vertical motion transmission mechanism

Method used

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  • Round-head keyhole sartorius
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  • Round-head keyhole sartorius

Examples

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Embodiment Construction

[0026] In order to explain this invention in detail, it demonstrates referring drawings.

[0027] As shown in Fig. 1 and Fig. 2, the eyelet buttonhole sewing machine 1 is a sewing machine for sewing eyelet eyelet stitches, comprising: a substantially rectangular box-shaped machine base 2; a bottom plate 3 carried on the machine base 2; A pillar portion 4 erected from the rear portion of the bottom plate portion 3 ; a case portion 5 extending forward from an upper portion of the pillar portion 4 , and the like. The buttonhole sewing machine 1 is carried and fixed on the sewing machine table T.

[0028] On the upper side of the sewing machine table T, there is provided an operation panel P etc. for instructing various operations such as selecting one from a variety of eyelet buttonhole stitches, and on the lower side of the sewing machine table T, a A control device 6 composed of a microcomputer for controlling the action of each mechanism.

[0029] A hollow (tubular) needle b...

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PUM

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Abstract

The round-head keyhole sartorius of the present invention includes: needle bar for fixing sewing needle, needle bar upping and downing mechanism for making the needle bar move up and down, needle-cyclical mechanism for making the needle bar swing, needle bar Rota table mechanism for making the needle bar rotate around its axis, and loopier bed turning mechanism for making the loopier bed which supports the loopier rotate synchronously with said needle bar, the sartorial is characterized in that, said needle bar upping and downing mechanism comprises: needle bar crank that moves with the arm shaft, and upping and downing transferring mechanism which can move with said needle bar crank and transfer the upping and downing drive force of the said needle bar crank to the needle bar, the round-head keyhole sartorial has lubricating oil supplying mechanism for supplying lubricating oil to plurality of gliding parts of the said upping and downing transferring mechanism.

Description

technical field [0001] The invention relates to a needle bar for installing sewing needles, a needle bar up and down movement mechanism for making the needle bar move up and down, a needle pendulum mechanism for making the needle bar swing, a needle bar rotating mechanism for making the needle bar rotate around its axis, And the eyelet buttonhole sewing machine of the looper seat rotating mechanism that can make the looper seat supporting the looper rotate synchronously with the rotation of the needle bar. Background technique [0002] Conventionally, in a ball buttonhole sewing machine for sewing buttonhole stitches, a sewing machine motor rotates a main shaft, and the rotation drives a needle bar vertical movement mechanism for moving the needle bar up and down, and drives a needle bar vertical movement mechanism for swinging the needle bar. needle pendulum mechanism, and drives the thread take-up mechanism for swinging the thread take-up lever. [0003] For example, the ...

Claims

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Application Information

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IPC IPC(8): D05B3/08D05B55/14D05B71/00
Inventor 柴田到
Owner BROTHER KOGYO KK
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