JPS61157486U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案を具体化したミシンのブロツ
ク回路図、第２図はミシンの正面図、第３図は設
定手段の電気回路図、第４図はタイムチヤートで
ある。 図において、３は駆動モータ、５は針、８は検
出装置、９は糸切り装置、１１は電力供給手段、
１４は設定手段、２２は電磁ソレノイド、２５は
制御手段である。 Fig. 1 is a block circuit diagram of a sewing machine embodying this invention, Fig. 2 is a front view of the sewing machine, Fig. 3 is an electric circuit diagram of the setting means, and Fig. 4 is a time chart. In the figure, 3 is a drive motor, 5 is a needle, 8 is a detection device, 9 is a thread cutting device, 11 is a power supply means,
14 is a setting means, 22 is an electromagnetic solenoid, and 25 is a control means.

Claims (1)

【実用新案登録請求の範囲】 ミシン主軸の回転に連動して上下動される針５
と、 前記針５の上下位置に関連して糸切り位置検出
信号を出力する検出手段８，２５と、 前記ミシン主軸に作動連結された駆動モータ３
と、 縫製終了時において、糸切り位置検出信号に基
づいて縫い糸を切断する糸切り装置９と、 その糸切り装置９を作動させるための糸切り用
電磁ソレノイド２２と、 前記駆動モータ３及び糸切り用電磁ソレノイド
２２に電力を供給する電力供給手段１１と、 この電力供給手段１１と糸切り用電磁ソレノイ
ド２２との間に接続され、その糸切り用電磁ソレ
ノイド２２への電力供給期間を設定可能な設定手
段１４と、 からなることを特徴とするミシンにおける糸切り
装置の駆動装置。[Claims for Utility Model Registration] Needle 5 that moves up and down in conjunction with the rotation of the main shaft of the sewing machine
, detection means 8 and 25 for outputting a thread trimming position detection signal in relation to the vertical position of the needle 5, and a drive motor 3 operably connected to the main shaft of the sewing machine.
a thread trimming device 9 that cuts the sewing thread based on a thread trimming position detection signal at the end of sewing; a thread trimming electromagnetic solenoid 22 for operating the thread trimming device 9; and the drive motor 3 and the thread trimmer. A power supply means 11 that supplies power to the electromagnetic solenoid 22 for thread trimming, and a power supply means 11 that is connected between the power supply means 11 and the electromagnetic solenoid 22 for thread trimming, and is capable of setting the period of power supply to the electromagnetic solenoid 22 for thread trimming. A driving device for a thread cutting device in a sewing machine, comprising: a setting means 14;