JPH019505Y2 - - Google Patents
Info
- Publication number
- JPH019505Y2 JPH019505Y2 JP13207085U JP13207085U JPH019505Y2 JP H019505 Y2 JPH019505 Y2 JP H019505Y2 JP 13207085 U JP13207085 U JP 13207085U JP 13207085 U JP13207085 U JP 13207085U JP H019505 Y2 JPH019505 Y2 JP H019505Y2
- Authority
- JP
- Japan
- Prior art keywords
- presser foot
- empty ring
- spring
- outer claw
- empty
- 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
- 238000009958 sewing Methods 0.000 claims description 13
- 210000000078 claw Anatomy 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009957 hemming Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、２本針オーバロツクミシンにおける
空環縫込み装置、特に、その端部をクランプされ
た空環のたるみ防止方法に関するものである。[Detailed description of the invention] [Field of industrial application] The present invention relates to an empty ring sewing device for a two-needle overlock sewing machine, and particularly to a method for preventing slack of an empty ring whose end is clamped. .
２本針オーバロツクミシンによつてワーク布の
縁がかりを行う場合、ワークの縫い終了時に、ソ
フトチエーン化して棒状にされた空環を、つぎの
ワークの縫い開始時に、ほつれを防止するために
縫目の中に送込んで縫うことが従来から行われて
いる。
When hemming a workpiece cloth using a two-needle overlock sewing machine, at the end of sewing the workpiece, the empty ring, which is made into a soft chain and shaped into a rod, is used to prevent fraying when starting sewing the next workpiece. Conventionally, sewing is carried out by feeding the material into the seam.
このとき、前記空環が針板の中爪に引掛り易い
傾向があり、このまま縫製を開始すると中針によ
つて縫込まれて空環巻込みが不能となるので、中
爪の引掛かかりを防止するための諸提案がなされ
ているが、いずれも一長一短があつて、巻込み不
良を生じたりする欠点があつた。 At this time, the empty ring tends to get caught in the inner claw of the throat plate, and if you start sewing in this state, it will be sewn in by the inner needle and the empty ring will not be able to be rolled in. Various proposals have been made to prevent this, but all of them have advantages and disadvantages, including the drawback of causing poor winding.
このため、これらの欠点を解決するために、布
押え側にも押え爪を設け、空環をその外側方を通
つて布送り方向の後方に離れた位置に配設された
クランプ体に拘束することにより、空環と布とは
直接接触することなく空環を効果的に巻込むよう
に構成した改善提案が、本願と同一の発明者によ
つて、特願昭60−91718号に開示されている。詳
細説明は上記引用例と重複するため省略するが、
上記発明の一実施例を第３図に引用する。この分
重複するが、作用の概要を説明すると、(1)−ワー
ク布の空環形成終了後布押え足１０を上昇させ
て、空環を後方（布送り方向矢印Ｗ）に引張つて
針板１および布押え足１０側の各爪２，３，１
２，１３に巻付いている空環を外す。(2)空環をオ
ペレタ手前側に来るようワーク布を反転し、上メ
スと布押え足１０とのすきまより空環を押え外爪
１３外側から上方に出るよう手で誘導し、押え足
１０上のクランプ本体６ａのクランプばね６ｂ先
端部から挟み込んでクランプし、残部をメス６ｃ
部で切断する。(3)つぎに、新しいワーク生地をセ
ツトし、押え足１０を下して縫いを開始し、ワー
ク生地上面に生成される縫目中に巻込むようにし
たものである。なお、１５は空環の保持を安定さ
せるためのガイドみぞである。 Therefore, in order to solve these drawbacks, a presser foot is also provided on the presser foot side, and the empty ring is passed through the outer side of the presser foot and is restrained to a clamp body that is disposed at a rearward position in the cloth feeding direction. Accordingly, an improvement proposal in which the hollow ring is effectively wrapped around the cloth without direct contact with the cloth is disclosed in Japanese Patent Application No. 1983-91718 by the same inventor as the present application. ing. The detailed explanation will be omitted as it overlaps with the cited example above, but
An embodiment of the above invention is shown in FIG. Although this will be redundant, the outline of the action will be explained as follows: (1) - After completing the formation of the empty ring on the workpiece cloth, the presser foot 10 is raised, the empty ring is pulled backward (in the direction of the cloth feeding direction arrow W), and the throat plate is 1 and each claw 2, 3, 1 on the presser foot 10 side
Remove the empty ring wrapped around 2 and 13. (2) Turn over the work cloth so that the empty ring is in front of the operator, press the empty ring through the gap between the upper knife and the presser foot 10, and guide it by hand so that it comes out from the outside of the outer claw 13 and presser foot 10. Clamp the clamp spring 6b of the upper clamp body 6a by inserting it from the tip, and use the knife 6c to clamp the remaining part.
Cut at the section. (3) Next, a new workpiece material is set, the presser foot 10 is lowered, sewing is started, and the workpiece material is rolled into the seam formed on the upper surface of the workpiece material. Note that 15 is a guide groove for stably holding the empty ring.
しかしながら、上記のような従来の改良提案例
にあつては、空環を押え外爪１３の外側に引掛け
ているため、ワーク布セツト時に布押え足１０を
上昇させると、空環が押上げられてクランプ部か
ら引出されるため、つぎに布押え足１０を下降さ
せたとき、その分だけ苦干たるむことになり、こ
のためワークの縫目中への空環の巻込みがはみ出
し傾向等、不安定となり縫製品の商品価値が低下
することがあつた。
However, in the conventional improvement proposal example as described above, since the empty ring is hooked on the outside of the presser foot outer claw 13, when the presser foot 10 is raised when setting the workpiece cloth, the empty ring is pushed up. When the presser foot 10 is lowered next time, it will become sag by that amount, and this will cause the empty ring to tend to protrude into the seam of the workpiece. , and the product value of sewn products decreased due to instability.
本考案は、以上のような従来例の問題点にかん
がみてなされたもので、布押え足上／下移動時、
空環巻込不安定の原因となるたるみを針板爪側に
生じないようにすることを目的としている。 The present invention was devised in view of the problems of the conventional examples as described above.
The purpose is to prevent sagging from occurring on the throat plate pawl side, which would cause instability in empty ring winding.
このため、本考案にあつては、クランプと押え
外爪との間に、クランプばねより弱い弾性力を持
つ糸取りばねを配設して、クランプ部より引出さ
れた空環が針板上にたるみとして残らないように
したものである。
For this reason, in the present invention, a thread take-up spring having an elastic force weaker than that of the clamp spring is provided between the clamp and the outer claw of the presser foot, so that the empty ring pulled out from the clamp part sag on the throat plate. This was done so that it would not remain as such.
以下に考案を実施例図面に基づいて説明する。
第１図に、本考案による一実施例の前出第３図相
当斜視図、第２図ａ，ｂはそれぞれその動作説明
図である。第３図と同一（相当）構成要素は同一
符号で表わし、重複説明は省略する。第１図にお
いて、Ｓはピアノ線等のばねワイヤより成る糸取
りばねで、クランプばね６ｂと押え外爪１３との
間に、その水平部分で空環Ｓを受けるよう配設さ
れ、一端はねじSaにより布押え足１０上面に固
定され、他端には空環外れ止め用の立上り部を有
しており、このばねＳの空環Ｃ張力による上下荷
重に対する曲げのばね係数は、クランプばね６ｂ
によるクランプ力よりも弱く設定してある。
The invention will be explained below based on the drawings of the embodiments.
FIG. 1 is a perspective view of an embodiment of the present invention corresponding to FIG. 3, and FIGS. 2a and 2b are explanatory views of its operation. Components that are the same (equivalent) to those in FIG. 3 are indicated by the same reference numerals, and redundant explanation will be omitted. In FIG. 1, S is a thread take-up spring made of spring wire such as piano wire, and is arranged between the clamp spring 6b and the outer claw 13 of the presser foot so that its horizontal portion receives the empty ring S. The clamp spring 6b is fixed to the upper surface of the presser foot 10, and has a rising portion at the other end to prevent the ring from coming off.
The clamping force is set to be weaker than the clamping force.
第２図ａ，ｂは、布押え足１０がワーク布上面
Waよりそれぞれ上昇したときとその上面Wa上
に下降当接したときの空環Ｃと糸取りばねＳのた
わみ状態を示す図で、ａ図のように布押え足上昇
時には空環Ｃの張力により糸取りばねＳがたわん
でクランプ部からの引出し量を減少させ、ｂ図の
ように、空環Ｃのたるみ分は糸取りばねＳの復元
変位によつて吸収されるので、針板（すなわちワ
ーク布Wa部）でたるみが残存することを防止
し、空環の巻込みが安定して行われるようにな
る。 In Fig. 2 a and b, the presser foot 10 is placed on the upper surface of the workpiece cloth.
This is a diagram showing the deflection states of the empty ring C and the thread take-up spring S when they rise above Wa and when they descend and come into contact with the upper surface Wa. The spring S bends and reduces the amount of pull-out from the clamp part, and as shown in figure b, the slack of the empty ring C is absorbed by the restoring displacement of the thread take-up spring S, so that the needle plate (i.e., the workpiece cloth Wa part) ) prevents any slack from remaining and ensures stable winding of the empty ring.
なお、上記実施例は、糸取りばねが布押え足側
に配設された例を示したが、針板側やミシン機枠
側に配設されている場合にあつても同様に本考案
を適用し得る。 Note that although the above embodiment shows an example in which the thread take-up spring is disposed on the presser foot side, the present invention can be similarly applied even if the thread take-up spring is disposed on the throat plate side or the sewing machine frame side. It is possible.
また、クランプばねは、ばね強さ調節式のもの
であつても差支えない。 Further, the clamp spring may be of a spring strength adjustable type.
以上説明してきたように、本考案においては、
空環クランプ装置の直前に糸取りばねを配設した
ため、布押え足の上下移動に伴う空環のたるみが
針板上に残らなくなり、空環の巻込みが安定して
行われるようになつた。
As explained above, in this invention,
Since the thread take-up spring is disposed just before the empty ring clamping device, the slack of the empty ring due to the vertical movement of the presser foot does not remain on the throat plate, and the winding of the empty ring can be performed stably.
第１図は、本考案に係る空環縫込み装置に一実
施例の上面斜視図、第２図ａ，ｂはそれぞれ本実
施例の動作説明図、第３図は、従来例の第１相当
図である。
１……針板、３……外爪、６ａ……クランプ本
体（空環クランプ手段）、６ｂ……クランプばね
（空環クランプ手段）、１０……布押え足、１３…
…押え外爪、Ｃ……空環、Ｓ……糸取りばね。
FIG. 1 is a top perspective view of an embodiment of the hollow ring sewing device according to the present invention, FIGS. It is a diagram. DESCRIPTION OF SYMBOLS 1... Throat plate, 3... Outer claw, 6a... Clamp body (empty ring clamp means), 6b... Clamp spring (empty ring clamp means), 10... Presser foot, 13...
...Presser foot outer claw, C...Empty ring, S...Thread take-up spring.
Claims (1)
該押え外爪のワーク布送り方向後方に離れて配設
された空環クランプ手段とを有する空環縫込み装
置において、前記押え外爪と前記空環クランプ手
段との間に、該クランプ手段のばね力より弱いば
ね力を有する糸取りばねを配設したことを特徴と
するオーバロツクミシンの空環縫込み装置。 The outer claw of the throat plate, the outer claw of the presser foot provided on the presser foot,
In the empty ring sewing device having an empty ring clamping means disposed apart from the outer claw of the presser foot in the workpiece cloth feeding direction, the clamping means is provided between the outer claw of the presser foot and the empty ring clamping means. An empty chain sewing device for an overlock sewing machine, characterized in that a thread take-up spring having a spring force weaker than a spring force is disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13207085U JPH019505Y2 (en) | 1985-08-29 | 1985-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13207085U JPH019505Y2 (en) | 1985-08-29 | 1985-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6239675U JPS6239675U (en) | 1987-03-09 |
| JPH019505Y2 true JPH019505Y2 (en) | 1989-03-15 |
Family
ID=31031117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13207085U Expired JPH019505Y2 (en) | 1985-08-29 | 1985-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH019505Y2 (en) |
-
1985
- 1985-08-29 JP JP13207085U patent/JPH019505Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6239675U (en) | 1987-03-09 |
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