JPS6139089U - Sewing machine thread trimming safety device - Google Patents
Sewing machine thread trimming safety deviceInfo
- Publication number
- JPS6139089U JPS6139089U JP12313484U JP12313484U JPS6139089U JP S6139089 U JPS6139089 U JP S6139089U JP 12313484 U JP12313484 U JP 12313484U JP 12313484 U JP12313484 U JP 12313484U JP S6139089 U JPS6139089 U JP S6139089U
- Authority
- JP
- Japan
- Prior art keywords
- sewing
- sewing machine
- fabric
- rotation
- control signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009958 sewing Methods 0.000 title claims description 26
- 238000009966 trimming Methods 0.000 title claims 3
- 239000004744 fabric Substances 0.000 claims description 13
- 238000003708 edge detection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Sewing Machines And Sewing (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の要部を構成する制御信号入力回路図、
第２図は第１図の各部のパルス波形を示す図、第３図は
本考案の適用されたミシンの全体図、第４図は布地端検
出器の設けられる針落周辺を示す図、第５図は縫直し時
に布身が切断された状態を示す図、第６図に従来の糸切
り安全装置を備えたミシンの部分拡大図である。
４・・・・・・布地端検出器、５・・・・・・カッター
装置、７〜１４・・・・・・制御信号入力回路、７・・
・・・・回転検出器、１０・・・・・・縫始め側カウン
タ、１１・・・・・・縫終り側カウンタ、１５・・・・
・・判別手段、１６・・・・・・ゲート手段。FIG. 1 is a control signal input circuit diagram constituting the main part of the present invention.
Fig. 2 is a diagram showing the pulse waveforms of each part of Fig. 1, Fig. 3 is an overall view of the sewing machine to which the present invention is applied, Fig. 4 is a diagram showing the vicinity of the needle drop where the fabric edge detector is installed, FIG. 5 is a diagram showing a state in which the fabric is cut during re-sewing, and FIG. 6 is a partially enlarged view of a sewing machine equipped with a conventional thread-cutting safety device. 4...Fabric edge detector, 5...Cutter device, 7-14...Control signal input circuit, 7...
... Rotation detector, 10 ... Sewing start side counter, 11 ... Sewing end side counter, 15 ...
...Discrimination means, 16... Gate means.
Claims (2)
と、 この検出器の布地端検出信号に基づく制御信号によって
作動され、布地端に連なる空環又はテープ片を切断する
カッター装置と、 ミシンが高速回転をじているか低速回転をし・ ている
かを判別する速度判別手段と、前記カッター装置の制御
信号入力回路に設けられたゲート手段とを備える−と共
に、 布地端検出器が布地の縫始め端を検出した時点でミシン
が低速回転をしていると速度判別手段が判別したときに
前記ゲート手段を閉じて制御信号がカッター装置に加わ
らないように構成したことを特徴とするミシンの糸切り
安全装置。(1) A fabric edge detector that detects the fabric edge of the sewing fabric, and a cutter device that is activated by a control signal based on the fabric edge detection signal of this detector and cuts the loop or tape piece that is connected to the fabric edge. , speed determination means for determining whether the sewing machine is rotating at high speed or low speed; and gate means provided in the control signal input circuit of the cutter device; The sewing machine is characterized in that when the speed determining means determines that the sewing machine is rotating at a low speed at the time when the sewing start end of the sewing machine is detected, the gate means is closed so that the control signal is not applied to the cutter device. thread trimming safety device.
の回転を検出する回転検出器と、布地端検出器が縫製布
地の縫始め端を検出した時点から回転検出器にて検出さ
れるミレンの回転をカウン卜する縫始め側カウンタと、 布地端検出器が縫製布地の縫終り端を検出した時点から
回転検出器にて検出されるミシンの回転をカウントする
縫終り側カウンタとを含み、前記縫始め側カウンタ及び
縫終り側カウンタのカウント値が夫々予しめ設定された
値に達するとカッター装置に制御信号を加えて布地端に
連なる空環又はテニプ片を切断するよう構成されており
、かかる制御信号入力回路においてゲート手段は縫始め
側カウンタの入力側に設けられて．いることを特徴とす
る実用新案登録請求−の範囲第（１）項に記載のミシン
の糸切り安全装置。(2) The control signal input circuit of the cutter device includes a rotation detector that detects the rotation of the sewing machine, and a rotation detector that detects the rotation of the sewing machine from the time when the fabric edge detector detects the sewing start edge of the sewing fabric. The sewing machine includes a sewing start side counter that counts the rotation, and a sewing end side counter that counts the rotation of the sewing machine detected by the rotation detector from the time when the fabric edge detector detects the sewing end of the sewing fabric, When the count values of the sewing start side counter and the sewing end side counter reach preset values, respectively, a control signal is applied to the cutter device to cut the empty loop or tenip piece connected to the edge of the fabric. In the control signal input circuit, the gate means is provided on the input side of the sewing start side counter. A thread trimming safety device for a sewing machine according to item (1) of the utility model registration claim, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12313484U JPS6139089U (en) | 1984-08-11 | 1984-08-11 | Sewing machine thread trimming safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12313484U JPS6139089U (en) | 1984-08-11 | 1984-08-11 | Sewing machine thread trimming safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6139089U true JPS6139089U (en) | 1986-03-12 |
| JPH02137Y2 JPH02137Y2 (en) | 1990-01-05 |
Family
ID=30681882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12313484U Granted JPS6139089U (en) | 1984-08-11 | 1984-08-11 | Sewing machine thread trimming safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6139089U (en) |
-
1984
- 1984-08-11 JP JP12313484U patent/JPS6139089U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02137Y2 (en) | 1990-01-05 |
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