JP2003010578A - Fabric feeding apparatus for sewing machine - Google Patents
Fabric feeding apparatus for sewing machineInfo
- Publication number
- JP2003010578A JP2003010578A JP2001201029A JP2001201029A JP2003010578A JP 2003010578 A JP2003010578 A JP 2003010578A JP 2001201029 A JP2001201029 A JP 2001201029A JP 2001201029 A JP2001201029 A JP 2001201029A JP 2003010578 A JP2003010578 A JP 2003010578A
- Authority
- JP
- Japan
- Prior art keywords
- cloth
- belt
- magnet
- sewing machine
- fabric
- 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
- 239000004744 fabric Substances 0.000 title claims abstract description 51
- 238000009958 sewing Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 7
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000452 restraining effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、ミシンの布送り装
置に関するものである。
【０００２】
【従来の技術】通常のミシンは、ミシンの針と連動して
ボックス動きをする送り歯によって、布を下から押し上
げながら間欠的に送っている。滑りの良い布を複数枚重
ねて縫う場合には、送り歯は下の布を余計に送ろうとす
るので、上下の布にずれが生じることがある。カーテン
の裾などは、図４に示すように、縁を三重に折り返して
長い距離を縫わなければならないが、縫い終わりでは上
の布３０がずれてはみ出し、模様３１が合わないばかり
か、斜めのシワ３２が入って非常に見映えの悪いものと
なる。また、布を斜めに縫うバイアス縫いでは、布が伸
縮するためにパッカリング（縫い縮み）が起きやすく、
まっすぐに縫うことも非常に困難である。
【０００３】こうした不具合を解消するには、布をずれ
ないように拘束して送ることが有効である。これを行う
従来のものとしては、送り歯に針を設け、その針を布に
突き刺して送るものや、通常は布の下側にしかない送り
歯を布の上側にも設け、上下の送り歯で布を挟持して送
るもの、パターンシーマといって、ミシンの針が通るス
リットを形成したカセット内に布を挟み、そのカセット
ごと布を拘束して送って縫うものなどがある。
【０００４】
【発明が解決しようとする課題】先に挙げた送り歯に細
工をする二つのものでは、布を送り歯で間欠的に送るこ
とに変わりはないので、パッカリング対策としては万全
ではないし、布を送り歯で傷めてしまう恐れもある。パ
ターンシーマによれば、布のずれやパッカリングを起こ
さずに上手く縫うことができるが、新しい形のものを縫
うためにいちいちカセットを用意しなければならない
し、カーテンのような大きい物を縫うのには適さない。
【０００５】本発明は以上に述べたような実状に鑑み、
布を傷めずに確実に拘束して送ることが可能で、尚且つ
どんなに大きい布でも連続的にまっすぐ送ることのでき
るミシンの布送り装置の提供を目的とする。
【０００６】
【課題を解決するための手段】上記の課題を達成するた
めに、本発明によるミシンの布送り装置は、ミシンの縫
い位置の前後にまたがって、無端状の送りベルトを上下
に接する形で備え、下送りベルトの上側走行部分の下に
磁石を有し、下送りベルトは磁石に吸着しない材質、上
送りベルトは磁石に吸着する材質で各々形成してあり、
下送りベルトは駆動手段により駆動され、上送りベルト
は前記磁石の吸着力を受けるために下送りベルトに追従
して動き、吸着した上下の送りベルト間に布を挟んで送
ることを特徴とする。
【０００７】
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は本発明の布送り装置を備え
るミシンの平面図であり、図２は図１のＡ−Ａ断面図で
ある。この装置は、縫製する布６を滑らせる長方形のテ
ーブル７の略中央に、通常のミシン８をテーブル７の長
手方向に対して横向きに埋め込んであり、テーブル７に
は無端状の送りベルト２，３を利用した布送り装置を備
える。
【０００８】送りベルトは、テーブル７の上側で周回す
る上送りベルト２と、テーブルの下側で周回する下送り
ベルト３とで構成され、上下の送りベルト２，３は、テ
ーブル７にミシンの縫い位置１の前後に向けて長く形成
した切り欠き９内で、テーブル７上面と同じ高さで接し
ている。上下の送りベルト２，３は各々２本ずつ設けて
あり、それらは互いに間隔１０を空けて横に並べて配置
してあり、上下に接した送りベルト２，３の中間部の間
隔１０で、送られてきた布６をミシン針１１で縫うもの
である。
【０００９】上送りベルト２は、テーブル７上に立設し
たポスト１２から張り出した４つのプーリー１３に、弛
ませた状態で掛け渡してある。上送りベルト２はスチー
ルのベルトを使用しており、外周面に滑り止めのために
ゴムの層を形成してある。一方、下送りベルト３は、テ
ーブル７下に垂下したブラケット１４に取り付けた４つ
のプーリー１５に、緊張した状態で掛け渡してある。ミ
シン後側の下のプーリー１５は、モーター５によって駆
動され、下送りベルト３は図中の矢印の向きに動く。な
お、下送りベルト３は樹脂タイミングベルトであり、外
周面に滑り止めのためにゴムの層を形成してある。下送
りベルト３は、本実施形態のように専用のモーター５で
駆動しても良いが、ミシン８からベルト等を介して引っ
ぱってきた動力によって駆動するものであっても良い。
【００１０】下送りベルト３の上側走行部分は、ベルト
ガイド１６によりガイドされているが、ベルトの下面が
摺接する部分に、全長に亘って磁石４を埋め込んであ
る。よってスチール製の上送りベルト２の下側走行部分
は磁石４に吸い寄せられ、下送りベルト３に吸着する。
上送りベルト２は駆動のための手段を持たないが、下送
りベルト３を動かせば、それに追従して動く。動いてい
る上下の送りベルト２，３の間に前方から布６を差し入
れると、布６は上下の送りベルト２，３に挟まれて送ら
れる。図中の符号１７は、布６の先端と末端の縁を検出
するためのセンサーであり、その検出信号を基にミシン
８を運転・停止したり、縫い始めと縫い終わりに返し縫
いを施したりできる。なお、本発明の布送り装置を使用
する場合には、ミシン８に通常備わっている送り歯と布
押えは不要であり、取り外すか、働かないように殺して
おく。
【００１１】
【発明の効果】本発明によるミシンの布送り装置は、磁
石の力で吸着した上下の送りベルト間に布を挟み、布を
拘束した状態で連続的に送るので、布のずれが全く発生
しないばかりでなく、布を傷めることもない。また、布
にテンションを全く加えず、縫い位置の前後を固定した
状態で縫うので、パッカリングの発生が抑えられ、長い
距離のバイアス縫いも上手にできる。すなわち本装置に
よれば、布の材質やミシンを使う人の技量に関係なく、
布を常に理想的な状態で送り、一定の高いレベルのミシ
ン作業を安定して行うことができる。また、送りベルト
が無端状であるために、どんなに大きい布でも連続して
まっすぐに送ることができ、カーテンや布団カバーとい
った大きい物の縫製に特に適している。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth feeding device for a sewing machine. 2. Description of the Related Art A general sewing machine intermittently feeds a cloth while pushing up a cloth from below by a feed dog which moves in a box in conjunction with a needle of the sewing machine. When a plurality of slippery cloths are sewn together, the feed dog tries to feed the lower cloth more, so that the upper and lower cloths may be shifted. As shown in FIG. 4, the hem of the curtain must be folded over three times to sew the edge, and at the end of sewing, the upper cloth 30 is displaced and protrudes. The wrinkles 32 enter and make the appearance very poor. Also, with bias sewing, which sews the cloth diagonally, puckering (shrinkage of the sewing) tends to occur because the cloth expands and contracts.
It is also very difficult to sew straight. In order to solve such a problem, it is effective to constrain the cloth so that it does not slip. Conventionally, this is done by providing a feed dog with a needle and piercing the needle into the cloth, or by providing a feed dog normally above the cloth on the upper side of the cloth. There is a type in which a cloth is sandwiched and sent, and a pattern seamer in which a cloth is sandwiched in a cassette formed with a slit through which a needle of a sewing machine passes, and the cloth is constrained and sent with the cassette. [0004] In the above-mentioned two types of working on the feed dog, since the cloth is fed intermittently by the feed dog, there is no change in puckering. In addition, the cloth may be damaged by the feed dog. According to the pattern seamer, sewing can be done successfully without causing displacement or puckering of the cloth.However, it is necessary to prepare a cassette to sew a new shape, and to sew a large object such as a curtain. Not suitable for [0005] The present invention has been made in view of the above situation,
It is an object of the present invention to provide a sewing machine cloth feeding device which can surely restrain and feed a cloth without damaging the cloth and can continuously feed any large cloth straight. [0006] In order to achieve the above object, a cloth feeder for a sewing machine according to the present invention vertically contacts an endless feed belt across a sewing position of a sewing machine. The lower feed belt is formed of a material that does not stick to the magnet, and the upper feed belt is formed of a material that sticks to the magnet.
The lower feed belt is driven by a driving means, and the upper feed belt moves following the lower feed belt to receive the attraction force of the magnet, and feeds a cloth between the upper and lower feed belts adsorbed. . Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a sewing machine provided with the cloth feeding device of the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. In this apparatus, an ordinary sewing machine 8 is embedded in a substantially center of a rectangular table 7 on which a cloth 6 to be sewn is slid, in a transverse direction with respect to the longitudinal direction of the table 7. 3 is provided. The feed belt is composed of an upper feed belt 2 circling above the table 7 and a lower feed belt 3 circulating below the table. The upper and lower feed belts 2, 3 In the notch 9 formed long toward the front and back of the sewing position 1, it is in contact with the upper surface of the table 7 at the same height. The upper and lower feed belts 2 and 3 are provided two each, and they are arranged side by side with an interval of 10 therebetween. The cloth 6 thus obtained is sewn with a sewing needle 11. The upper feed belt 2 is stretched around four pulleys 13 projecting from posts 12 erected on a table 7 in a loosened state. The upper feed belt 2 uses a steel belt, and a rubber layer is formed on the outer peripheral surface to prevent slippage. On the other hand, the lower feed belt 3 is stretched around four pulleys 15 attached to a bracket 14 hanging down from the table 7 under tension. The lower pulley 15 on the rear side of the sewing machine is driven by the motor 5, and the lower feed belt 3 moves in the direction of the arrow in the figure. The lower feed belt 3 is a resin timing belt, and a rubber layer is formed on the outer peripheral surface to prevent slippage. The lower feed belt 3 may be driven by a dedicated motor 5 as in this embodiment, or may be driven by power pulled from the sewing machine 8 via a belt or the like. The upper running portion of the lower feed belt 3 is guided by a belt guide 16, and a magnet 4 is embedded over the entire length in a portion where the lower surface of the belt slides. Therefore, the lower traveling portion of the steel upper feed belt 2 is attracted to the magnet 4 and is attracted to the lower feed belt 3.
The upper feed belt 2 has no means for driving, but moves when the lower feed belt 3 is moved. When the cloth 6 is inserted from between the moving upper and lower feed belts 2 and 3 from the front, the cloth 6 is sandwiched and sent between the upper and lower feed belts 2 and 3. Reference numeral 17 in the figure denotes a sensor for detecting the edges of the front end and the end of the cloth 6, which can start and stop the sewing machine 8 based on the detection signal, and can perform reverse sewing at the start and end of sewing. . When the cloth feeder of the present invention is used, the feed dog and the presser foot normally provided in the sewing machine 8 are unnecessary, and are removed or killed so as not to work. The cloth feeding device for a sewing machine according to the present invention sandwiches the cloth between the upper and lower feed belts attracted by the force of the magnet and continuously feeds the cloth in a restrained state. Not only does it not occur at all, but also does not damage the cloth. In addition, since sewing is performed with no tension applied to the cloth and the sewing position is fixed before and after, the occurrence of puckering can be suppressed, and bias sewing can be performed over a long distance. That is, according to this device, regardless of the material of the cloth or the skill of the person using the sewing machine,
The cloth is always fed in an ideal state, and a constant high level sewing operation can be stably performed. In addition, since the feed belt is endless, any large cloth can be continuously fed straight, and is particularly suitable for sewing large objects such as curtains and futon covers.
【図面の簡単な説明】
【図１】本発明の布送り装置を備えたミシンの平面図で
ある。
【図２】図１におけるＡ−Ａ断面図である。
【図３】図２におけるＢ−Ｂ断面図である。
【図４】（イ）（ロ）縫製の出来が悪いカーテンの正面
図と側面図である。
【符号の説明】
１ 縫い位置
２ 上送りベルト
３ 下送りベルト
４ 磁石
５ モーター（駆動手段）
６ 布BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a sewing machine provided with a cloth feeding device of the present invention. FIG. 2 is a sectional view taken along the line AA in FIG. FIG. 3 is a sectional view taken along the line BB in FIG. 2; 4A and 4B are a front view and a side view of a curtain with poor sewing performance. [Description of Signs] 1 Sewing position 2 Upper feed belt 3 Lower feed belt 4 Magnet 5 Motor (drive means) 6 Cloth
Claims (1)
って、無端状の送りベルト（２，３）を上下に接する形
で備え、下送りベルト（３）の上側走行部分の下に磁石
（４）を有し、下送りベルト（３）は磁石に吸着しない
材質、上送りベルト（２）は磁石に吸着する材質で各々
形成してあり、下送りベルト（３）は駆動手段（５）に
より駆動され、上送りベルト（２）は前記磁石（４）の
吸着力を受けるために下送りベルト（３）に追従して動
き、吸着した上下の送りベルト（２，３）間に布（６）
を挟んで送ることを特徴とするミシンの布送り装置。Claims: 1. An endless feed belt (2, 3) is provided so as to be vertically in contact with a sewing position (1) before and after a sewing position (1) of a sewing machine, and an upper side of a lower feed belt (3). The lower feed belt (3) is formed of a material that does not stick to the magnet, and the upper feed belt (2) is formed of a material that sticks to the magnet. ) Is driven by a driving means (5), and the upper feed belt (2) moves following the lower feed belt (3) to receive the attraction force of the magnet (4), and the upper and lower feed belts (2) which are attracted are moved. , 3) cloth between (6)
A cloth feeding device for a sewing machine, characterized in that the cloth is fed across the cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001201029A JP3681996B2 (en) | 2001-07-02 | 2001-07-02 | Sewing machine cloth feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001201029A JP3681996B2 (en) | 2001-07-02 | 2001-07-02 | Sewing machine cloth feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003010578A true JP2003010578A (en) | 2003-01-14 |
| JP3681996B2 JP3681996B2 (en) | 2005-08-10 |
Family
ID=19038057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001201029A Expired - Fee Related JP3681996B2 (en) | 2001-07-02 | 2001-07-02 | Sewing machine cloth feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3681996B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525447A (en) * | 2016-02-04 | 2016-04-27 | 衢州市立掏智能科技有限公司 | Synchronous device for sewing machine |
| CN105525446A (en) * | 2016-02-05 | 2016-04-27 | 衢州市立掏智能科技有限公司 | Sewing machine capable of realizing sewn material shrinking and magnetic clamp positioning |
| CN108085877A (en) * | 2016-11-22 | 2018-05-29 | 苏州三安机器制造有限公司 | A kind of pulley type single-needle quilter |
| CN109594207A (en) * | 2017-09-30 | 2019-04-09 | 杰克缝纫机股份有限公司 | A kind of interactive mode feed device |
-
2001
- 2001-07-02 JP JP2001201029A patent/JP3681996B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525447A (en) * | 2016-02-04 | 2016-04-27 | 衢州市立掏智能科技有限公司 | Synchronous device for sewing machine |
| CN105525446A (en) * | 2016-02-05 | 2016-04-27 | 衢州市立掏智能科技有限公司 | Sewing machine capable of realizing sewn material shrinking and magnetic clamp positioning |
| CN108085877A (en) * | 2016-11-22 | 2018-05-29 | 苏州三安机器制造有限公司 | A kind of pulley type single-needle quilter |
| CN109594207A (en) * | 2017-09-30 | 2019-04-09 | 杰克缝纫机股份有限公司 | A kind of interactive mode feed device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3681996B2 (en) | 2005-08-10 |
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