JPS5835363U

JPS5835363U - sewing machine

Info

Publication number: JPS5835363U
Application number: JP12780881U
Authority: JP
Inventors: 修井上; 竹生　安宏
Original assignee: リツカ−株式会社
Priority date: 1981-08-31
Filing date: 1981-08-31
Publication date: 1983-03-08

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はボタンホール縫いの説明図、第２図は本考案を
実施したミシンの外観図、第３図は模様パネルのボタン
ホール縫い部分の拡大図、第４図は模様カム選択機構の
側面図、第５図、第６図はクラッチ装置の説明のための
クラッチ装置の要部の正面図及び側面図、第７図はロー
タリースイッチの固定一点の正面図、第８図は制御回路
図である。１・・・ミシン本体、２・・・始動停止スイッチ、６・
・・選択スイッチ、８．・・・フットコントローラ、９
・・・模様セレクト軸、１１・・・主軸、１２・・・振
り幅模様カム、１３・・・送り模様カム、２２・・・駆
動モータ、２３・・・ロータリースイッチ、２４・・・
制御装置、４７・・・パルス発生器、４８．５４・・・
フリップフロップ、５３・・・カウンタ。第５図− 第７図る＼−Figure 1 is an explanatory diagram of buttonhole sewing, Figure 2 is an external view of the sewing machine implementing the present invention, Figure 3 is an enlarged view of the buttonhole sewing part of the pattern panel, and Figure 4 is a side view of the pattern cam selection mechanism. Figures 5 and 6 are front and side views of the main parts of the clutch device for explanation of the clutch device, Figure 7 is a front view of one fixed point of the rotary switch, and Figure 8 is a control circuit diagram. be. 1... Sewing machine body, 2... Start/stop switch, 6...
...Selection switch, 8. ...Foot controller, 9
... Pattern selection axis, 11... Main shaft, 12... Stitch width pattern cam, 13... Feed pattern cam, 22... Drive motor, 23... Rotary switch, 24...
Control device, 47... Pulse generator, 48.54...
Flip-flop, 53...counter. Figure 5- Figure 7

Claims

[Claims for Utility Model Registration] A plurality of pattern cams, a pattern cam selection mechanism that selects a desired pattern cam and transmits its movement to a stitch forming device of a sewing machine, a drive motor, and a driving force of the drive motor. In a sewing machine equipped with a clutch device that switches the sewing machine to the main shaft of the sewing machine or the pattern cam selection mechanism, the buttonhole sewing is divided into two steps, and two selection switches are provided for buttonhole sewing to select sewing of continuous tuck portions and bar tack portions. , a pulse generator that generates a pulse for each stitch in synchronization with the rotation of the main shaft, and a tack portion selected by the selection switch by setting a flip-flop specific to the selection switch when the selection switch is operated. a tuck stitch selection circuit that selects a pattern cam for sewing and resets the flip-flop when the pattern cam is selected to complete the selection; A predetermined number of pulses were counted. a counter that operates a part tuck sewing selection circuit that stops the motor and selects a pattern cam for sewing the part tuck part; and a flip-flop is set by the output of the counter to select the part tuck part sewing selected by the selection switch a part tuck sewing selection circuit which performs pattern cam selection for the pattern cam and, when the pattern cam is selected, resets the flip-flop to complete the selection; and a circuit for starting the motor again when the selection is completed. A sewing machine with