JPS5911741Y2 - Sewing machine motor speed switching device for pattern selection - Google Patents
Sewing machine motor speed switching device for pattern selectionInfo
- Publication number
- JPS5911741Y2 JPS5911741Y2 JP15591075U JP15591075U JPS5911741Y2 JP S5911741 Y2 JPS5911741 Y2 JP S5911741Y2 JP 15591075 U JP15591075 U JP 15591075U JP 15591075 U JP15591075 U JP 15591075U JP S5911741 Y2 JPS5911741 Y2 JP S5911741Y2
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- pattern selection
- sewing machine
- pattern
- motor speed
- 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.)
- Expired
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
本考案は模様選択のためのミシンモータ速度切換装置に
関し、模様選択操作に連動して模様縫に適したモータ速
度を得る如くし、もって縫作業の能率化及び良好な模様
縫が得られるようにしたものである。[Detailed description of the invention] The present invention relates to a sewing machine motor speed switching device for pattern selection, and is designed to obtain a motor speed suitable for pattern sewing in conjunction with pattern selection operation, thereby improving the efficiency of sewing work and improving the sewing machine motor speed. This allows pattern stitching to be obtained.
第１図において１は多数の模様カム（図示せず）を内蔵
したジグザグミシンの頭部を示し、２は前記模様カムに
よって縫威される各種の縫模様ａ，１），ｃ，ｄ，ｅ・
・・・・・を図示した模様板、３は模様選択操作のため
の模様ダイアル、４は前記模様ダイアルに連動して前記
模様板３の裏面上を左右に移動する指示線である。In Fig. 1, numeral 1 indicates the head of a zigzag sewing machine that incorporates a large number of pattern cams (not shown), and numeral 2 indicates various sewing patterns a, 1), c, d, and e sewn by the pattern cams.・
3 is a pattern dial for pattern selection operation, and 4 is an instruction line that moves left and right on the back surface of the pattern board 3 in conjunction with the pattern dial.
ところで模様板２に図示したボタンホール縫ａ及びしつ
け縫ｂは通常使用される縫速度では早すぎるため、機構
部の耐久性を低下せしめたり、或いは縫作業が非常に困
難であった。By the way, the buttonhole stitches a and basting stitches b illustrated on the pattern board 2 are too fast at the sewing speed normally used, which reduces the durability of the mechanical parts or makes the sewing work very difficult.
本考案は以上のような欠点を除去するために考案された
ものであり、以下その実施態様を図面について説明する
と、第２図において５はベルト６を介しモータ７により
回転せられるハズミ車で、該ハズミ車５に連動する主軸
（図示せず）によりミシンを駆動する。The present invention has been devised to eliminate the above-mentioned drawbacks, and its embodiment will be described below with reference to the drawings. In FIG. The sewing machine is driven by a main shaft (not shown) that is interlocked with the handwheel 5.
８はコントローラ、９．１０はモータ制御回路を切換え
るための導電材より戊る一対の摺動線で、一方の摺動線
９の終端は最左方にある縫模様即ちボタンホール縫ａに
対応する位置より十分左方に延出しており、他方の摺動
線１０の終端は縫模様Ｃに対応する位置より僅か左方に
延出している。8 is a controller, 9.10 is a pair of sliding wires cut from a conductive material for switching the motor control circuit, and the end of one sliding wire 9 corresponds to the leftmost sewing pattern, that is, buttonhole sewing a. The terminal end of the other sliding line 10 extends slightly to the left of the position corresponding to the sewing pattern C.
而して摺動線１０、電源Ａ−Ｃ、コントローラ８、モー
タ７、摺動線９を順次接続し、且つ摺動線９，１０間を
整流素子１１にて接続している。The sliding wire 10, power source AC, controller 8, motor 7, and sliding wire 9 are connected in this order, and the sliding wires 9 and 10 are connected by a rectifying element 11.
１２は摺動線９，１０上を前記模様ダイアル３に連動し
て摺動する導電材より成る摺動板で、該摺動板上には前
記指示線４が固着されている。Reference numeral 12 denotes a sliding plate made of a conductive material that slides on the sliding lines 9 and 10 in conjunction with the pattern dial 3, and the indicator line 4 is fixed onto the sliding plate.
本考案は以上の如く構戊されており、その動作について
説明すると、摺動板１２が点線にて示す如く縫模様ｃ，
ｄ，ｅ・・・・・・等に対応する位置にあるときは、モ
ータ制御回路は摺動板１２で短絡され、交流回路を形威
しモータ７が高速回転されて模様縫が行なわれる。The present invention is constructed as described above, and its operation will be explained as follows: The sliding plate 12 has a sewing pattern c,
When the motor control circuit is at a position corresponding to d, e, . . . , the motor control circuit is short-circuited by the sliding plate 12, an alternating current circuit is established, and the motor 7 is rotated at high speed to perform pattern sewing.
また摺動板１２が第２図に実線にて示す如くボタンホー
ル縫ａ及びしつけ縫ｂの縫模様に対応する位置にあると
きは、摺動板１２は一方の摺動線９上にのみあり、従っ
て電源Ａ−Ｃからの入力電流は整流素子１１を通り半波
の整流回路が形或せられてモータ７の回転が減速され、
ボタンホール縫ａ及びしつけ縫ｂ作業に適切なる回転数
が得られることになる。Furthermore, when the sliding plate 12 is in a position corresponding to the buttonhole stitch a and the basting stitch b as shown by the solid line in FIG. 2, the sliding plate 12 is located only on one sliding line 9. Therefore, the input current from the power source A-C passes through the rectifier 11 to form a half-wave rectifier circuit, and the rotation of the motor 7 is decelerated.
An appropriate rotational speed can be obtained for buttonhole sewing a and basting sewing b.
上記したような本考案によると、コントローラの踏込量
を途中で維持するが如き不安定な作業は全く必要なく、
模様選択のための模様ダイアル操作のみでモータ制御回
路が切換えられ、もって模様縫に最も適したモータ速度
が得られるものであり、縫作業の能率向上に寄与すると
ころ大であると共に良好な模様縫が得られる等実用上そ
の効果極めて大である。According to the present invention as described above, there is no need for unstable work such as maintaining the amount of depression of the controller halfway.
The motor control circuit can be switched simply by operating the pattern dial to select a pattern, and the most suitable motor speed for pattern sewing can be obtained, which greatly contributes to improving the efficiency of sewing work and also allows for good pattern sewing. The practical effects are extremely great, such as the ability to obtain the following.
図面は本考案の実施態様を示し、第１図は本考案に係る
装置を内蔵したミシン頭部の斜面図、第２図は本考案に
係る装置の動作説明図である。
図中、９，１０は摺動線、１１は整流素子、１２は摺動
板である。The drawings show embodiments of the present invention; FIG. 1 is a perspective view of a sewing machine head incorporating a device according to the present invention, and FIG. 2 is an explanatory diagram of the operation of the device according to the present invention. In the figure, 9 and 10 are sliding lines, 11 is a rectifying element, and 12 is a sliding plate.
Claims (1)
１０を設けたモータ制御回路と、前記摺動線９，１０間
に接続した整流素子１１と、模様選択操作に連動されて
前記摺動線９，１０上を摺動する導電材より或る摺動板
１２とを設けて戊り、前記摺動板１２を前記一対の摺動
線９，１０上に配置することにより前記モータ制御回路
が短絡されて交流回路を形或し、終端の長い摺動線のみ
に配置することにより半波の整流回路が形威される如く
した模様選択のためのミシンモータ速度切換装置。A pair of sliding wires made of different conductive materials and terminated at open ends 9.
10, a rectifying element 11 connected between the sliding wires 9 and 10, and a conductive material that slides on the sliding wires 9 and 10 in conjunction with the pattern selection operation. By providing a moving plate 12 and arranging the sliding plate 12 on the pair of sliding lines 9 and 10, the motor control circuit is short-circuited to form an AC circuit, and a long sliding terminal is formed. A sewing machine motor speed switching device for pattern selection in which a half-wave rectifier circuit is implemented by placing it only on the flow line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15591075U JPS5911741Y2 (en) | 1975-11-18 | 1975-11-18 | Sewing machine motor speed switching device for pattern selection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15591075U JPS5911741Y2 (en) | 1975-11-18 | 1975-11-18 | Sewing machine motor speed switching device for pattern selection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5269359U JPS5269359U (en) | 1977-05-23 |
| JPS5911741Y2 true JPS5911741Y2 (en) | 1984-04-10 |
Family
ID=28635112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15591075U Expired JPS5911741Y2 (en) | 1975-11-18 | 1975-11-18 | Sewing machine motor speed switching device for pattern selection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5911741Y2 (en) |
-
1975
- 1975-11-18 JP JP15591075U patent/JPS5911741Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5269359U (en) | 1977-05-23 |
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