JPH03231698A - Static eliminating method for sewn material of presser foot and throat plate for rolled hemming - Google Patents
Static eliminating method for sewn material of presser foot and throat plate for rolled hemmingInfo
- Publication number
- JPH03231698A JPH03231698A JP2788390A JP2788390A JPH03231698A JP H03231698 A JPH03231698 A JP H03231698A JP 2788390 A JP2788390 A JP 2788390A JP 2788390 A JP2788390 A JP 2788390A JP H03231698 A JPH03231698 A JP H03231698A
- Authority
- JP
- Japan
- Prior art keywords
- presser foot
- sewn
- sewing
- static electricity
- throat plate
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 45
- 230000003068 static effect Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 15
- 238000009957 hemming Methods 0.000 title 1
- 238000009958 sewing Methods 0.000 claims abstract description 32
- 230000005611 electricity Effects 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000004809 Teflon Substances 0.000 claims description 6
- 229920006362 Teflon® Polymers 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 238000010292 electrical insulation Methods 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract description 15
- 238000009413 insulation Methods 0.000 abstract description 2
- 229920006026 co-polymeric resin Polymers 0.000 description 6
- 238000010422 painting Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000005219 brazing Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 241000270923 Hesperostipa comata Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ミシンによる縫製の際に、衣類の裾、ハンカ
チ、ネクタイ等の周縁部、厚物コー）ＩＩの裾縁部、天
幕及びビニール覆い等の周縁部等の三つ巻き縫製の際に
使用される縫製用補助工具のうち三つ巻き押さえ金具及
び針板の改良に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention can be applied to the hem of clothing, the periphery of a handkerchief, a necktie, etc., the hem edge of a heavy coat II, an awning, and vinyl when sewing with a sewing machine. This invention relates to an improvement of a three-wrap presser and a throat plate, which are sewing auxiliary tools used when sewing three-wraps around the peripheral edge of a cover, etc.
従来この種技術としては、三つ巻き折り込み方法として
、実公昭６０−３８１８号、実開昭６１−９２７３８号
、実開昭６２−１１７９７２号、実開平１−１０８２７
号等の技術が開示されている。また、縫着方法としては
、実公平１−３１１６８号簀の技術も開示されている。Conventionally, this kind of technology includes three folding methods such as Japanese Utility Model Publication No. 60-3818, Japanese Utility Model Application Publication No. 61-92738, Japanese Utility Model Application Publication No. 62-117972, and Japanese Utility Model Application Publication No. 1999-10827.
The following technologies have been disclosed. Further, as a sewing method, a technique disclosed in Japanese Utility Model Publication No. 1-31168 is also disclosed.
前記各技術は三つ巻き縫製の際の三つ巻き折り込み方法
及び縫着方法であって三つ巻き縫製による正確で美麗な
仕上げ及びそのため縫製速度は格段に向上した。Each of the above-mentioned techniques is a three-fold folding method and a sewing method during three-fold sewing, and the three-fold sewing provides an accurate and beautiful finish, and therefore, the sewing speed is significantly improved.
しかし、近時被縫製物素材の高級化に伴い合成繊維、化
学繊維の普及と前記三つ巻き縫製用補助工具の改良によ
って、正確な高速縫製が可能なために、被縫製物素材の
種類によっては前記三つ巻き補助具との摩擦抵抗によっ
て温度上昇を来たし、また、運針の際の針先端部の温度
上昇をきたし、そのため、縫い糸の糸切れ、目飛の発生
、糸締りの不安定を来たしていた。また、前記摩擦抵抗
による温度上昇のため被縫製物素材に静電気の発生を誘
発して、作業者は糸切れの補修、静電気発生防止のため
の作業の一時中断を余儀なくされ、また、被縫製物素材
に残留静電気が残存する等の課題が発生していた。However, with the recent increase in the quality of materials to be sewn, the spread of synthetic fibers and chemical fibers, and improvements in the auxiliary tools for three-wrap sewing have made it possible to perform accurate high-speed sewing. The temperature rises due to the frictional resistance with the three-winding auxiliary tool, and the temperature of the needle tip also rises when moving the needle, resulting in thread breakage, skipped stitches, and unstable thread tightness. It was coming. In addition, the rise in temperature caused by the frictional resistance induces the generation of static electricity in the material of the workpiece, forcing the worker to temporarily suspend work to repair broken threads or prevent the generation of static electricity. Issues such as residual static electricity remaining in the material occurred.
歯の改良が実施されたために安定した均一の三つ巻き縫
製が可能となり正確で美麗な縫製が実現し、従って運針
速度も上昇可能となり能率の向上に寄与したが、しかし
、近時前述のとおり被縫製物素材も合成繊維、化学繊維
の普及に上り多種多様化し、そのため縫製用針、縫製用
に使用する糸等も発生して来た。また、三つ巻き縫製の
場合は、三つ巻き幅もハンカチ、ネクタイ等の場合は３
ｍ／ｍから天幕等の場合は１０ｍ／ｍ以上に及ぶ物もあ
り巻き幅の範囲も広いために、三つ巻きに折り返し部の
三つ巻き部にかかる被縫製物素材の摩擦抵抗も高くなり
被縫製物素材の種類によっては、前記被縫製物素材の摩
擦抵抗によって発熱及び静電気の発生を容易にしていた
。しかし、従来がら三つ巻き押え金具本体に付設されて
いる三つ巻き折り込み用の螺旋状のガイド板（通称ラッ
パ以下ラッパと称す）は、半田付けが、ロー付けによっ
て、前記押え足本体と一対として完成した後にニッケル
クロームメツキ等を実施していたために、前記溶着温度
が２８０℃以下のため他の塗装焼成等の施工が不可能で
あった。そのために、前記三つ巻き押え金具本体及び螺
旋状ラッパによる折り込み部に集中する被縫製物素材と
の摩擦抵抗の軽減方法が不可能であった。従って針と糸
の滑りを良くするためにシリコン油を点滴するが、作業
者による被縫製物素材の滑りを補助する等の手段を採用
するか、作業を一時中断する等の数々の課題があった。Improvements in the teeth made it possible to perform stable and uniform three-wrap sewing, resulting in accurate and beautiful sewing.This also made it possible to increase the needle movement speed, contributing to improved efficiency. However, as mentioned above, The materials to be sewn have become diverse with the spread of synthetic fibers and chemical fibers, and as a result, sewing needles, threads, etc. used for sewing have also been produced. In addition, when sewing three wraps, the width of the three wraps is also 3 for handkerchiefs, neckties, etc.
m/m to 10 m/m or more in the case of awnings, etc., and the range of winding width is wide, so the frictional resistance of the material to be sewn applied to the three windings of the folded part becomes high. Depending on the type of material to be sewn, the frictional resistance of the material to be sewn facilitates generation of heat and static electricity. However, the spiral guide plate for three-fold folding (commonly referred to as a trumpet hereinafter) attached to the conventional three-fold presser foot body is not connected to the presser foot body by soldering or brazing. Since nickel chrome plating, etc. had been carried out after completion of the work, other construction such as painting and baking was impossible because the welding temperature was below 280°C. For this reason, it has been impossible to reduce the frictional resistance between the three-wound presser metal body and the material to be sewn, which is concentrated at the folded portion of the spiral wrapper. Therefore, silicone oil is dripped in order to improve the slippage between the needle and thread, but this poses a number of problems, such as having to take measures such as helping the worker slide the material to be sewn or temporarily suspending the work. Ta.
前述の数々の課題を解決するために本発明は、三つ巻き
押え金具及び針板と被縫製物素材の当接する螺旋状のラ
ッパと押え足本体の底面部及び開口部、中央部に刻設し
たガイド棒、針案内穴その他に、また、針板上部表面部
及び針穴その他に、被縫製物素材に適応した、耐熱性、
非粘着性、低摩擦性、電気絶縁性に優れたテフロン（商
標名）正確には四フッ化エチレン樹脂、四フフ化エチレ
ン・六フッ化プロピレン共重合体樹脂、純粋な四フッ化
エチレンパーフロロアルキルビニルエーテル共重合樹脂
のみでできたほぼ球形をした粉末を、前記押え足本体の
底面部、開口部、ガイド棒、針案内穴、螺旋状ラッパ部
に、また、針板及び針穴等に特に三つ巻き押え金具の場
合は組み込み前に、各フッ素樹脂に適応した前処理、塗
装または吹き付け、乾燥、焼成の各工程を経て被縫製物
素材に当接する部分に四フッ化エチレン樹脂系のコーテ
ィングを実施して、耐熱性、対摩擦性、電気絶縁性の向
上を図り高速縫製による発熱性及び静電気の発生を防止
する。In order to solve the above-mentioned problems, the present invention provides a three-wrap presser metal fitting, a spiral wrapper where the throat plate and the material to be sewn come into contact, and a presser foot body with a spiral wrapper engraved on the bottom, opening, and central portion of the presser foot body. In addition, the upper surface of the needle plate, the needle hole, etc. have heat-resistant
Teflon (trade name), which has excellent non-adhesiveness, low friction, and electrical insulation properties.To be exact, it is tetrafluoroethylene resin, tetrafluoroethylene/hexafluoropropylene copolymer resin, and pure tetrafluoroethylene perfluoro. Approximately spherical powder made only of alkyl vinyl ether copolymer resin is applied to the bottom of the presser foot body, the opening, the guide rod, the needle guide hole, the spiral wrapper, and especially to the throat plate and needle hole. In the case of a three-wrap presser metal fitting, before installation, the part that comes into contact with the material to be sewn is coated with tetrafluoroethylene resin through the pretreatment, painting or spraying, drying, and baking processes appropriate for each fluororesin. This is done to improve heat resistance, anti-friction properties, and electrical insulation to prevent the generation of heat and static electricity caused by high-speed sewing.
以下本発明の一実施例を図面に基づいて詳細に説明する
、押え足ホルダー１にピン２を介して自在に保持された
押え足零体３は、左押え足３Ａと布押え足３Ｂで構成さ
れ、前記押え足零体３には針案内穴４を配設する、また
、押え足零体３の中央部に開口部５を刻設する、前記開
口部５の中央部にガイド捧６、またはガイｌ”１１１ｉ
４球（図示なし）を配設する、また、布押え足３Ｂの上
面に螺旋状のう、パを所定の位置二自在に装着し螺子８
で固着する、また、前記押え足本体３の底面部には、三
つ巻き幅に対応するガイドａ９及び左右対称に三つ巻の
被縫製物素材の厚さに対応するガイド９・９Ａを刻設す
る、また、針板１０には針穴１１、送り歯穴１２，１２
Ａ、１２Ｂをそれぞれ配設する。以下三つ巻き押え金具
の押え足ホルダー１に組み付けする前に押え足本体３と
螺旋状ラッパ７及び針板１０の所要の表面にそれぞれテ
フロン（商標名）コーチングを実施する。この場合合成
繊維、化学繊維の種類による被縫製物素材の性質に適応
したコーチングが必要である。例えば、薄物素材の場合
は比較的摩擦抵抗も低いために対応して四フッ化エチレ
ン樹脂を使用し、被縫製物素材が厚物で三つ巻き幅の広
い素材で当然摩擦抵抗の高い素材には四フッ化エチレン
・六フッ化プロピレン共重合体樹脂、または、純粋な四
フッ化エチレンパーフロロアルキルビニルエーテル共重
合樹脂のみでできたほぼ球形をした球形粉末を吹き付は
使用する。前記各種のコーチングも、脱脂、表面処理、
吹き付けまたは塗装、乾燥、焼成の各工程を順次実施す
る。また、表面処理方法としては、酸化アルミ粉末等に
よるグリドブラントを行い、化成処理を実施する場合等
もある。しかし、各フッ素樹脂コーチングは、薄い被膜
のためにピンホールの発生を防止するために前処理を完
全に実施し、被縫製物素材に適応しフッ素樹脂材の選定
及びフッ素樹脂の重複コーチングを実施する必要もある
。従来の三つ巻き押、え金具は、押え足本体３に螺旋状
のラッパ７を、ロー付け、または、半田付けした後に二
・ノケルクロームメッキを実施して滑りを良くする程度
の方法が採用されていたために、被縫製物素材の通過及
び三つ折り返しによる摩擦抵抗を軽減するだけであった
。なお、前記ロー付け、半田付けは溶材の溶融温度が２
８０℃以下と低いためにそれ以上の温度を使用する場合
溶着部が脆（なるため、本発明の四フッ化エチレン樹脂
系のコーチングは前処理、塗装または吹き付け、乾燥の
処理、焼成温度が４００℃程度に必要なため、前記の三
つ巻き押え金具の螺旋状ラッパ７及び押さえ足零体３に
配設された部品を分離して必要な部品、即ち、螺旋状ラ
フパフ、押え足零体３の底面部及び開口部５、ガイド棒
６、鋼球（図示なし）等と、また、別に被縫製物素材に
当接する針板１０の上部表面部及び針穴ｌｌ、送り歯穴
１２，１２Ａ、１２Ｂ等も前記四フッ化エチレン樹脂系
のコーチング可能となった。また、縫製用針（図示なし
）も前記コーチングを実施することも可能であり、また
、普通ミシン縫製に使用する縫製針、押え、針板等に被
縫製物素材の高速縫製の際に高熱及び静電気の発生する
恐れのある場合も、前記四フッ化エチレン樹脂系のコー
チングを実施することも可能である。前記三つ巻き押え
金具は各部をコーチング処理した後に順次組み込み完成
する。また、針板ｌＯも前記の脱脂、表面処理、塗装ま
たは吹き付け、乾燥、焼成の工程を繰り返しピンホール
のないコーチングを実施する。An embodiment of the present invention will be described below in detail based on the drawings. A presser foot zero body 3 freely held on a presser foot holder 1 via a pin 2 is composed of a left presser foot 3A and a fabric presser foot 3B. A needle guide hole 4 is provided in the presser foot zero body 3, an opening 5 is carved in the center of the presser foot zero body 3, and a guide hole 6 is provided in the center of the opening 5. Or Guy l"111i
4 balls (not shown) are provided, and a spiral cover is attached to the upper surface of the presser foot 3B so that it can be freely positioned at two predetermined positions.
Furthermore, on the bottom of the presser foot main body 3, a guide a9 corresponding to the width of three wraps and guides 9 and 9A corresponding to the thickness of the material to be sewn with three wraps are symmetrically carved. In addition, the throat plate 10 has a needle hole 11 and feed dog holes 12, 12.
A and 12B are respectively arranged. Before assembling the three-wrap presser foot fitting to the presser foot holder 1, the required surfaces of the presser foot main body 3, spiral wrapper 7, and throat plate 10 are coated with Teflon (trade name), respectively. In this case, it is necessary to provide a coating that is suitable for the properties of the material to be sewn depending on the type of synthetic fiber or chemical fiber. For example, if the material is thin, the frictional resistance is relatively low, so tetrafluoroethylene resin is used, and if the material to be sewn is thick and has a wide three-wrap width, it is natural that the material has a high frictional resistance. For spraying, a nearly spherical powder made only of tetrafluoroethylene/hexafluoropropylene copolymer resin or pure tetrafluoroethylene perfluoroalkyl vinyl ether copolymer resin is used. The various coatings mentioned above also include degreasing, surface treatment,
The steps of spraying or painting, drying, and firing are carried out in sequence. In addition, as a surface treatment method, there are cases where a chemical conversion treatment is performed by performing grid blunting using aluminum oxide powder or the like. However, each fluororesin coating requires complete pretreatment to prevent the occurrence of pinholes due to the thin coating, and the selection of fluororesin materials and overlapping coating of fluororesin to suit the material to be sewn. There is also a need to do so. For the conventional three-wrap presser foot metal fitting, the spiral wrapper 7 is brazed or soldered to the presser foot body 3, and then Ni-Nokel chrome plating is applied to improve the slippage. Since it was adopted, the only thing that could be done was to reduce the frictional resistance caused by the passage of the material to be sewn and the three-fold folding. In addition, in the above-mentioned brazing and soldering, the melting temperature of the welding material is 2.
Since the temperature is low (below 80°C), if a temperature higher than that is used, the welded part will become brittle. Therefore, the tetrafluoroethylene resin coating of the present invention requires pretreatment, painting or spraying, drying, and firing temperatures of 400°C. ℃, the parts arranged on the spiral wrapper 7 and the presser foot zero body 3 of the three-wrap presser metal fitting are separated and the necessary parts, that is, the spiral rough puff and the presser foot zero body 3 are prepared. The bottom surface and opening 5, the guide rod 6, the steel ball (not shown), etc., and the upper surface of the needle plate 10 that comes into contact with the material to be sewn, the needle hole 11, the feed dog holes 12, 12A, 12B, etc., can now be coated with the tetrafluoroethylene resin.It is also possible to apply the coating to sewing needles (not shown). In cases where high heat and static electricity are likely to be generated during high-speed sewing of material to be sewn on the throat plate, etc., it is also possible to perform the coating using the tetrafluoroethylene resin.The three-wrap presser foot The metal fittings are assembled one after another after each part is coated.Furthermore, the throat plate IO is also coated without pinholes by repeating the above-mentioned degreasing, surface treatment, painting or spraying, drying, and firing steps.
本発明は、実開昭６２−１１７９７２号、実開平１−１
０８２７５号に開示されている技術を実施した経験の結
果、近時の被縫製物素材の多様化して縫製機器の高速化
、自動化に対応して、目飛び、糸切れの防止、先締りの
均一化、静電気発生防止等を図るためには、特に、三つ
巻き縫製においては縫製補助工具である三つ巻き押え金
具の改良だけでは解決できない課題が発生してきた。被
縫製物素材の合成繊維、化学繊維の開発の進展によって
、特に三つ巻き縫製の場合はある種の被縫製物素材を使
用する時は、螺旋状ラッパに強制的に案内三つ巻き折り
込みを実施するために摩擦抵抗による発熱及び静電気の
発生が容易になりそのために、目飛び、糸切れ、先締り
の不向−及び被縫製物素材に残留静電気等の種々問題が
発生し製品不良の原因となり、また、作業能率の向上を
阻害する要因ともなっていた、そのため作業者は被縫製
物素材の前記螺旋状ラッパを強制的に三つ折り返し通過
する際には補助して螺旋状ラッパの摩擦抵抗を低下させ
る各種の方策を採用していた。The present invention is based on Utility Model Application No. 62-117972, Utility Model Application No. 1-1
As a result of the experience of implementing the technology disclosed in No. 08275, in response to the recent diversification of materials to be sewn and the speeding up and automation of sewing equipment, it has been possible to prevent skipped stitches, thread breakage, and uniformly tighten the heel. In order to prevent static electricity generation, etc., especially in three-wrap sewing, problems have arisen that cannot be solved only by improving the three-wrap presser metal fitting, which is a sewing auxiliary tool. With the progress in the development of synthetic fibers and chemical fibers for materials to be sewn, especially in the case of three-wrap sewing, when using certain materials to be sewn, it is necessary to forcibly insert a three-wrap guide into the spiral wrapper. Because of this, it is easy to generate heat and static electricity due to frictional resistance, which causes various problems such as skipped stitches, thread breakage, unsuitable end tightening, and residual static electricity in the material to be sewn, which causes product defects. This was also a factor that hindered the improvement of work efficiency.Therefore, when the worker forced the material to be sewn to pass through the spiral wrapper by folding it three times, the worker should assist to reduce the frictional resistance of the spiral wrapper. Various measures were adopted to reduce the
しかし、三つ折り返し部の縫い目形成のために縫い糸を
保持した針の通過と、前記螺旋状ラッパを通過の際の摩
擦熱と普通の二倍以上の被縫製物素材の厚さの縫い目形
成は針にかかる負荷は増大され二重に摩擦熱を発生しそ
のため静電気の発生も増大す結果となっていた。以上の
ことは作業者が処理不可能なために、作業者は縫製作業
を一時中断して冷気の噴射によって冷却して作業を再開
していた。しかし、−度発生した静電気は完全′に除去
することは不可能なために完成品の品質に関係する等の
問題が発生していた。本発明は前述の課題を解決するた
めに種々試験、実験の結果通称テフロン（商標名）即ち
四フッ化エチレン樹脂、四フッ化エチレン・六フッ化プ
ロピレン共重合体樹脂、純粋な四フッ化エチレンバーフ
ロロアルキルビニルエーテル共重合樹脂でできたほぼ球
形をし当接する部品の発熱及び静電気の発生を防止する
。However, in order to form a seam at the three-folded part, the thread holding the sewing thread passes through the needle, and the friction heat generated when passing through the spiral wrapper causes the seam to be formed when the thickness of the material to be sewn is more than twice that of normal seams. The load on the needle was increased and frictional heat was generated doubly, resulting in an increase in the generation of static electricity. Since the above-mentioned problems are beyond the ability of the worker to handle, the worker temporarily suspends the sewing work, cools the sewing machine with a jet of cold air, and resumes the work. However, since it is impossible to completely remove the generated static electricity, problems have arisen that affect the quality of the finished product. In order to solve the above-mentioned problems, the present invention was developed as a result of various tests and experiments commonly known as Teflon (trade name), i.e., tetrafluoroethylene resin, tetrafluoroethylene/hexafluoropropylene copolymer resin, pure tetrafluoroethylene. It is made of bar fluoroalkyl vinyl ether copolymer resin and has an almost spherical shape that prevents heat generation and static electricity from coming into contact with parts.
また、被縫製物素材の性質に合致した、前記四フッ化樹
脂材の選定を行い合致したコーチング処理を実施するこ
とによって、その効果は更に増大する、本発明は従来の
三つ巻き押え金具においては、押え足本体に螺旋状のラ
ッパを、ロー付けまたは半田付けをして一体物としてい
たが、前記ロー付け、半田付けは溶材の溶融温度は通常
２８０℃以下に限定されるために滑りを良くするために
ニッケルクロームメツキを施すのが限度であった。本発
明は、三つ巻き押え金具においては各部品加工形成後組
み付は前に、螺旋状ラッパ、押え足本体の底面部及び開
口部等の被縫製物素材の当接して通過する表面を被縫製
物素材の性質に適応した四フッ化エチレン樹脂材のうち
から選定してコーチングを実施する、各テフロン（商標
名）コーチングの処理方法は一般的には、脱脂、表面処
理、塗装または吹き付け、焼成の各工程処理を実施する
、テフロンの種類によってはピンホールの発生する場合
があるので再処理を必要゛とする場合がある。Furthermore, by selecting the above-mentioned tetrafluoride resin material that matches the properties of the material to be sewn and performing the matching coating treatment, the effect can be further increased. The spiral wrapper was integrated into the presser foot body by brazing or soldering, but brazing and soldering prevent slippage because the melting temperature of the welding material is usually limited to 280°C or less. The only way to improve it was to apply nickel chrome plating. In the present invention, in the three-wrap presser metal fitting, after each part is processed and formed, before assembly, the surfaces of the material to be sewn come into contact with and pass through, such as the spiral wrapper and the bottom and opening of the presser foot main body, are covered. Coaching is performed by selecting a polytetrafluoroethylene resin material that is suitable for the properties of the material to be sewn.Teflon (trade name) coating treatment methods generally include degreasing, surface treatment, painting or spraying, Depending on the type of Teflon that is used in each firing process, pinholes may occur and reprocessing may be required.
特に、焼成工程においては温度が４００℃前後となるた
め従来の一体物として形成された押え足本体は螺旋状ラ
ッパの溶着温度が低いために本発明の処理は不可能であ
り、例え実施しても溶着部が脆くなり作業途中で脱落す
る可能性があり実施は不可能であった。以上の各工程を
実施した後に各部品を組み付けるだけで完成品となる。In particular, in the firing process, the temperature is around 400°C, so the process of the present invention is impossible for the conventional presser foot body, which is formed as one piece, because the welding temperature of the spiral wrapper is low. However, this was not possible because the welded part would become brittle and could fall off during the work. After carrying out each of the above steps, simply assembling each part creates a finished product.
同様に針板、縫い針等も同様の処理を実施する。前述の
如く被縫製物素材と接触し強制的に送り出される個所の
表面に、前記コーチング処理を実施することによって摩
擦抵抗による発熱の防止それによる静電気の防止も可能
である。四フッ化エチレン樹脂系のコーチングは、非粘
着性、低摩擦性、絶縁性、耐熱性に優れているためにピ
ンホールの発生しない処理方法と、被縫製物各種の素材
の特性に合致したコーチング材を使用して処理すること
によって摩擦抵抗による発熱を防止し従って静電気の発
生も防止も可能となり、作業能率も向上する、特に作業
者は静電気の発生に注意することもなく、また、残留静
電気の再発生も防止可能となり完成品の質の向上に寄与
するためその効果は顕著なものがある。Similarly, the throat plate, sewing needles, etc. are also treated in the same manner. As mentioned above, by performing the coating treatment on the surface of the portion where the sewing material comes into contact with the material to be sewn and is forcibly fed out, it is possible to prevent heat generation due to frictional resistance and thereby static electricity. Tetrafluoroethylene resin coating has excellent non-adhesion, low friction, insulation, and heat resistance, so it has a processing method that does not generate pinholes, and a coating that matches the characteristics of the various materials to be sewn. By using the material, it is possible to prevent heat generation due to frictional resistance, thereby preventing the generation of static electricity, and improving work efficiency.In particular, workers do not have to be careful about the generation of static electricity, and residual static electricity can be reduced. The reoccurrence of this can be prevented, contributing to improving the quality of finished products, so the effect is significant.
第１図 三つ巻き押え金具斜視図 第２図 押え足本体底面図 第３図 螺旋状ラッパ斜視図 第４図 針板平面図 Fig. 1 Perspective view of three-wrap presser fitting Figure 2 Bottom view of presser foot body Figure 3 Perspective view of the spiral trumpet Figure 4 Throat plate plan view
Claims (1)
ち三つ巻き押え用金具及び針板において（１）押し足ホ
ルダー１にピン２を介して自在に保持された、左右両押
え足３Ａ・３Ｂで構成された押え足本体３の底面部、針
案内穴４、開口部５と前記開口部５の中央部に配設した
ガイド棒６及び装着自在な螺旋状ガイド板（通称ラッパ
）７に、非粘着性、低摩擦性、電気絶縁性、耐熱性等に
優れた特性を持った、四フッ化エチレン樹脂系（商標名
テフロン）の被膜をコーチングして、被縫製物素材が前
記各部品の所定の表面と接触通過する際の摩擦抵抗を軽
減して、それによって両者の摩擦熱及び静電気の発生を
防止する方法。 （２）前記押え足本体３の左右両押え足３Ａ・３Ｂの底
面部に被縫製物素材を介して当接する針板１０の上部表
面及び針穴１１、送り歯穴１２、１２Ａ、１２Ｂに前記
四フッ化エチレン樹脂系の被膜をコーチングして、被縫
製物素材との摩擦抵抗を軽減して、摩擦熱及び静電気の
発生を防止することを特徴とする三つ巻き縫製に使用す
る三つ巻き押え金具及び針板による被縫製物素材の摩擦
熱及び静電気発生防止方法。[Scope of Claims] Among the auxiliary tools used when sewing three wraps with a sewing machine, the three-wrap presser metal fitting and the throat plate include (1) freely held by a presser foot holder 1 via a pin 2; The bottom of the presser foot main body 3, which is composed of left and right presser feet 3A and 3B, the needle guide hole 4, the opening 5, a guide rod 6 disposed in the center of the opening 5, and a freely attachable spiral guide plate. (commonly known as trumpet) 7 is coated with a film made of polytetrafluoroethylene resin (trade name: Teflon), which has excellent properties such as non-adhesiveness, low friction, electrical insulation, and heat resistance. A method for reducing frictional resistance when a material passes through contact with a predetermined surface of each of the parts, thereby preventing the generation of frictional heat and static electricity between the two. (2) The upper surface of the throat plate 10 that comes into contact with the bottom of the left and right presser feet 3A and 3B of the presser foot main body 3 through the material to be sewn, the needle hole 11, and the feed dog holes 12, 12A, 12B. A three-wrap used for three-wrap sewing, characterized by coating a polytetrafluoroethylene resin coating to reduce frictional resistance with the material to be sewn and prevent the generation of frictional heat and static electricity. A method for preventing the generation of frictional heat and static electricity in materials to be sewn using a presser foot and throat plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2788390A JPH03231698A (en) | 1990-02-07 | 1990-02-07 | Static eliminating method for sewn material of presser foot and throat plate for rolled hemming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2788390A JPH03231698A (en) | 1990-02-07 | 1990-02-07 | Static eliminating method for sewn material of presser foot and throat plate for rolled hemming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03231698A true JPH03231698A (en) | 1991-10-15 |
Family
ID=12233294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2788390A Pending JPH03231698A (en) | 1990-02-07 | 1990-02-07 | Static eliminating method for sewn material of presser foot and throat plate for rolled hemming |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03231698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233653A (en) * | 2013-06-24 | 2014-12-24 | 蛇目缝衣机工业株式会社 | Needle plate of sewing machine |
| CN108442046A (en) * | 2018-06-25 | 2018-08-24 | 大连思美娅服饰有限公司 | Sewing machine hemming foot with wire cutter |
| WO2019073918A1 (en) * | 2017-10-13 | 2019-04-18 | Juki株式会社 | Slide fastener sewing method and slide fastener product |
-
1990
- 1990-02-07 JP JP2788390A patent/JPH03231698A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233653A (en) * | 2013-06-24 | 2014-12-24 | 蛇目缝衣机工业株式会社 | Needle plate of sewing machine |
| JP2015002949A (en) * | 2013-06-24 | 2015-01-08 | 蛇の目ミシン工業株式会社 | Needle plate of sewing machine and sewing machine including the same |
| WO2019073918A1 (en) * | 2017-10-13 | 2019-04-18 | Juki株式会社 | Slide fastener sewing method and slide fastener product |
| JPWO2019073918A1 (en) * | 2017-10-13 | 2020-11-05 | Juki株式会社 | How to sew slide fasteners and slide fastener products |
| TWI711400B (en) * | 2017-10-13 | 2020-12-01 | 日商重機股份有限公司 | Zipper sewing method and zipper product |
| CN108442046A (en) * | 2018-06-25 | 2018-08-24 | 大连思美娅服饰有限公司 | Sewing machine hemming foot with wire cutter |
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