JPS60140582U

JPS60140582U - Automatic tacking device for sewing machine

Info

Publication number: JPS60140582U
Application number: JP18332884U
Authority: JP
Inventors: 孝生小林
Original assignee: 三菱電機株式会社
Priority date: 1984-12-03
Filing date: 1984-12-03
Publication date: 1985-09-18
Also published as: JPS6215036Y2

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図はこの考案の一実施例を示す全体構成図、第２図
はその電気制御回路図、第３図はその動作説明図である
。図なお、図面において同一符号は同一部分を示し、１は
ミシン本体、２はミシン針位置検出装置、３はクラッチ
モードル、４は駆動制御装置、５は制御箱、１０１はミ
シン針、１０２は布押え、１０３は布送り装置、３０７
は足踏ペダル、３１３は踏込検出スイッチ、３１４は踏
込検出スイッチ、ＲＡ□、　ＲＡ２．　ＲＡ４はリレー
である。第１図ｒ −−−Δ１、ｌ″”ｏ３　Ｃ止１イ拒］」ＬＺ第２図一１１１ｉ王１ｍヨ２０４２０３　　　　− Ｌ−ｌイ′″ １仲！ｖｚ　４ｏｔ　　　　　　　ｌ　　ｌ□ 駅ｋｌｌＺｌｆ斗５・２ −　　　　　１− ｏｔFIG. 1 is an overall configuration diagram showing an embodiment of this invention, FIG. 2 is an electrical control circuit diagram thereof, and FIG. 3 is an explanatory diagram of its operation. In the drawings, the same reference numerals indicate the same parts, 1 is the sewing machine body, 2 is the sewing machine needle position detection device, 3 is the clutch mode, 4 is the drive control device, 5 is the control box, 101 is the sewing machine needle, and 102 is the sewing machine needle. cloth presser, 103, cloth feeding device, 307
is a foot pedal, 313 is a depression detection switch, 314 is a depression detection switch, RA□, RA2. RA4 is a relay. Figure 1 r --- Δ1, l''"o3 C Stop 1 I Refusal]" LZ Figure 2 111i King 1 m Yo 204 203 - L-l I''' 1 Naka! vz 4ot l l□ Station kll Zlf To 5・2-1-ot

Claims

[Scope of utility model registration request]

A sewing machine equipped with a cloth feed direction reversing mechanism, a motor for driving the sewing machine, a foot pedal for connecting and disconnecting the driving force of the motor to the sewing machine, and a foot pedal for driving the sewing machine by depressing the foot pedal in one direction. a first control device that operates for a predetermined period of time in response to the depression of the sewing machine and causes the sewing machine to operate at a predetermined tacking speed lower than the normal sewing speed; When the foot pedal is depressed in a direction opposite to the one direction beyond the release position of the foot pedal, the foot pedal operates for a predetermined period of time in response to the depression, and causes the sewing machine to operate at a predetermined sewing speed lower than the normal sewing speed. Operate at tacking speed,
and a second control device that performs thread trimming operation after this, the first control device and the second control device each reversing the cloth feeding direction for a required period while the sewing machine is operating at the tacking speed. It includes a control section that operates the mechanism, and performs the required length of tacking stitches at the start and end of sewing by counting the number of stitches using a preset counter included in the control section, and also performs the tacking stitches by normal sewing. The sewing machine is configured to automatically perform the backtack stitching at a predetermined speed that is lower than the sewing speed, and further the thread trimming operation is configured to be automatically performed at a predetermined speed that is lower than the end backtack stitching speed of the backtack sewing. Automatic tacking device.