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Compression member elevator for cylindrical sawing machine

A sewing machine and pressure lever technology, which is applied to sewing machine components, sewing machine casings, sewing equipment, etc., can solve the problems of complex arrangement of the link chain 31, heavy operation force of the pressure lever lifting pedal 30, etc.

Inactive Publication Date: 2005-04-20
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In order to prevent the link chain 31 from contacting with the sewing machine motor 25, the arrangement of the link chain 31 is complicated, and the operating force of the pressing bar lifting pedal 30 becomes heavier.

Method used

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  • Compression member elevator for cylindrical sawing machine
  • Compression member elevator for cylindrical sawing machine
  • Compression member elevator for cylindrical sawing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, the present invention will be described based on illustrated embodiments. The same reference numerals are assigned to the same configurations as those of the above-mentioned conventional device in the drawings, and description thereof will be omitted.

[0030] Such as Figure 1 ~ Figure 3 As shown, the pressing bar lifting device 41 of the cylindrical sewing machine 40 of this embodiment has a substantially flat plate-shaped pressing bar lifting link 42 arranged substantially horizontally in the longitudinal direction inside the sewing machine arm 6, and the pressing bar is raised and lowered. A bent abutting portion 42a is provided at the left end, which is one end of the connecting rod 42, and the abutting portion 42a is arranged so that the front end of the bar clamp 12 faces upward. The pressure bar lifting link 42 is swingably arranged centering on the stepped bolt 43 fitted in the middle part in the longitudinal direction thereof. The lower part is ...

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PUM

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Abstract

The present invention provides a press bar lifting device for a cylinder sewing machine having excellent operability and workability of a press bar lift pedal. The driving force transmission mechanism (54) has a depression bar lifting drive shaft (47), a depression bar lifting connecting arm (46), a depression bar lifting connecting rod (45), and a depression bar lifting connecting rod (42). The shaft (47) is arranged inside the base of the bottom plate receiving part (4) or the sewing machine bottom plate (5), and the above-mentioned pressure bar lifting link (42), one end of which is fixed to the pressure bar on the pressure bar (8) The lower end surface of the tight part (12) can be connected and disengaged, and its other end is connected with the other end of the depression bar lifting connecting rod (45). (47) connected pedal connecting rod (49) and the pressing rod lifting pedal (51) connected on the pedal connecting connecting rod (49) by connecting member (50), by operating the pressing rod lifting pedal (51), the rotation Depression bar lifting drive shaft (47) can make presser foot (9) move up and down.

Description

technical field [0001] The present invention relates to a press bar lifting device of a cylinder sewing machine which moves a presser foot up and down by operating a pedal for pressing bar lifting. Background technique [0002] In the past, in the sewing machine, when sewing a cylindrical sewing product along its circumferential direction, for example, when sewing trouser legs, etc., a cylindrical sewing machine in which the front end portion of the sewing machine bed is formed into a substantially cylindrical shape has been used. In addition, such a cylindrical sewing machine has a presser lifter that moves up and down the presser foot that presses the cloth with an appropriate pressure from above at a position near the wrong foot on the upper surface of the needle plate base. [0003] Figure 4 ~ Figure 6 It is a figure which shows the main part of an example of the cylinder sewing machine provided with the press bar raising and lowering device. exist Figure 4 and Fig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B29/02D05B73/06
Inventor 门胁真次郎山本正人原田誉裕
Owner JUKI CORP