JPS5852676B2 - Sewing machine cloth feed device - Google Patents
Sewing machine cloth feed deviceInfo
- Publication number
- JPS5852676B2 JPS5852676B2 JP55174367A JP17436780A JPS5852676B2 JP S5852676 B2 JPS5852676 B2 JP S5852676B2 JP 55174367 A JP55174367 A JP 55174367A JP 17436780 A JP17436780 A JP 17436780A JP S5852676 B2 JPS5852676 B2 JP S5852676B2
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- cylinder
- drive
- needle
- drive cylinder
- 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
【発明の詳細な説明】
この発明は、押え板の後方に取付けるミシンの布送り装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fabric feeding device for a sewing machine that is attached to the rear of a presser plate.
ミシンの可動部と連動して設定角度正逆方向に回転する
駆動筒の一方向の回転を一方クラッチ機構を介してその
内側に挿入された内筒に伝え、上記内筒の一方向の回転
によってその端部に取付けた送りローラにより布を送る
ようにした布送り装置は従来から存在する。The unidirectional rotation of the drive cylinder, which rotates in the forward and reverse directions of the set angle in conjunction with the movable part of the sewing machine, is transmitted to the inner cylinder inserted inside the drive cylinder through a one-way clutch mechanism, and the unidirectional rotation of the inner cylinder Cloth feeding devices have conventionally existed in which cloth is fed by a feeding roller attached to an end of the cloth feeding device.
上記のような布送り装置の一方クラッチ機構は、駆動筒
の内側の円周方向に複数の楔形切欠きを連続して形成し
、上記各切欠きにスプリング等の弾性体と、この弾性体
によって押圧されるニードルとを設け、上記ニードルを
内筒の外周と楔形切欠きとによって形成される空間の挟
小部にかみ込１せて駆動筒の一方向の回転を内筒に伝え
るようにしているが、内筒の外径寸法が例えば規定寸法
の±３／１００の許容範囲を超えたり、あるいは小さく
なると一方クラッチの機能を失し、このため内筒の外径
を正確に仕上げる必要があった。The one-way clutch mechanism of the cloth feeding device as described above has a plurality of wedge-shaped notches formed in succession in the circumferential direction inside the drive cylinder, and an elastic body such as a spring is attached to each of the above-mentioned notches. A needle to be pressed is provided, and the needle is inserted into a small part of the space formed by the outer periphery of the inner cylinder and the wedge-shaped notch, so that rotation of the drive cylinder in one direction is transmitted to the inner cylinder. However, if the outer diameter of the inner cylinder exceeds the allowable range of, for example, ±3/100 of the specified size, or becomes smaller, the clutch will lose its function, so it is necessary to accurately finish the outer diameter of the inner cylinder. Ta.
したがって、従来の布送り装置に釦いては、加工に非常
に手間がかかり、しかも内筒とニードルとは加圧接触す
るため内筒の外周の摩耗が激しく、寿命が短かいという
欠点があった。Therefore, conventional cloth feeding devices require a lot of effort to process, and since the inner cylinder and needle come into contact with each other under pressure, the outer circumference of the inner cylinder is subject to severe wear, resulting in a short service life. .
特に一方クラッチ機構と対応する内筒の外周にギザを形
成してニードルの食い込み力を向上させた布送り装置に
卦いては、上記ギザの外径を正確に出すのが困難であり
、しかもギザが短期間に摩耗し、寿命がきわめて短かい
という欠点があった。Particularly in the case of cloth feeding devices that improve the biting force of the needle by forming serrations on the outer periphery of the inner cylinder that corresponds to the one-way clutch mechanism, it is difficult to obtain the outer diameter of the serrations accurately; The disadvantage is that it wears out in a short period of time and has an extremely short lifespan.
この発明は上記の欠点を除去し、内筒の外周に対するニ
ードルの食い込み力を調整し得るようにして、寿命を向
上させることができ、しかも内筒の外周の加工が楽に行
なえるという効果を挙げることができるように布送り装
置を提供するものである。This invention eliminates the above-mentioned drawbacks, makes it possible to adjust the biting force of the needle against the outer periphery of the inner cylinder, improves the life of the needle, and has the effect of making it easier to process the outer periphery of the inner cylinder. The present invention provides a cloth feeding device that allows for
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
図示のように、ミシンのアームなどで支持される支持軸
１の端部にはアーム２が固定され、このアーム２の下端
部にローラ支持アーム３が揺動可能に接続されている。As shown in the figure, an arm 2 is fixed to the end of a support shaft 1 supported by an arm of a sewing machine, etc., and a roller support arm 3 is swingably connected to the lower end of this arm 2.
ローラ支持アーム３の端部には筒状の横軸４が支持され
、この横軸４の外側に内筒５が嵌め合わされている。A cylindrical horizontal shaft 4 is supported at the end of the roller support arm 3, and an inner cylinder 5 is fitted on the outside of this horizontal shaft 4.
内筒５はニードルベアリング６によって回転可能に支持
され、横軸４との間には逆転防止機構１０が設けられて
いる。The inner cylinder 5 is rotatably supported by a needle bearing 6, and a reverse rotation prevention mechanism 10 is provided between the inner cylinder 5 and the horizontal shaft 4.
逆転防止機構１０ば、第３図に示すように、内筒５の内
周の円周方向に複数の楔形切欠き１１を形成し、との各
切欠き１１にスプリング等の弾性体１２と、この弾性体
１２によって内方向に押圧されるニードル１３とを設け
、上記ニードル１３を横軸４の外周に接触させている。As shown in FIG. 3, the reverse rotation prevention mechanism 10 has a plurality of wedge-shaped notches 11 formed in the circumferential direction of the inner circumference of the inner cylinder 5, and each notch 11 is provided with an elastic body 12 such as a spring. A needle 13 that is pressed inward by the elastic body 12 is provided, and the needle 13 is brought into contact with the outer periphery of the horizontal shaft 4.
このため、内筒５を第３図の左方向に回転させる外部応
力が加わると、各ニードル１３が切欠き１１と横軸４の
外周とに形成される楔形の空間の狭い方に移動するため
、内筒５に制動力が作用し、また上記の逆方向の外部応
力が加わると内筒５は回転する。Therefore, when an external stress is applied that rotates the inner cylinder 5 to the left in FIG. When a braking force acts on the inner cylinder 5 and an external stress in the opposite direction is applied, the inner cylinder 5 rotates.
な釦、ニードル１３と対応する横軸４の外周円周方向に
ぎざ７を形成すれば、内筒４に加わる制動力を向上させ
ることができる。By forming the notches 7 in the circumferential direction of the outer periphery of the horizontal shaft 4 corresponding to the button and needle 13, the braking force applied to the inner cylinder 4 can be improved.
内筒５の一方の端部外周には送りローラ８が取付けられ
、他方の端部の外側には駆動筒１５が嵌め合わされてニ
ードルベアリング１６によって回転可能に支持されてい
る。A feed roller 8 is attached to the outer periphery of one end of the inner cylinder 5, and a drive cylinder 15 is fitted to the outside of the other end and rotatably supported by a needle bearing 16.
この駆動筒１５は薄肉厚筒部１７を備え、上記薄肉厚筒
部１７と内筒５との間に一方クラッチ機構２０が設けら
れている。The drive cylinder 15 includes a thin-walled cylinder part 17, and a one-way clutch mechanism 20 is provided between the thin-walled cylinder part 17 and the inner cylinder 5.
一方クラッチ機構２０は、前記逆転防止機構１０と同様
に、駆動筒１５の内周の円周方向に複数の楔形切欠き２
１を形成し、との各切欠き２１に弾性体２２と、上記弾
性体２２によって内方向に押圧されるニードル２３とを
設け、各ニードル２３を内筒５の外周に接触させている
。On the other hand, the clutch mechanism 20 has a plurality of wedge-shaped notches 2 in the circumferential direction of the inner circumference of the drive cylinder 15, similar to the reverse rotation prevention mechanism 10.
1 is formed, and an elastic body 22 and a needle 23 that is pressed inward by the elastic body 22 are provided in each notch 21 of the inner cylinder 5, and each needle 23 is brought into contact with the outer periphery of the inner cylinder 5.
駆動筒１５に形成した切欠き２１は、内筒５の内周に形
成した切欠き１１に対して逆向きになり、このため１．
駆動筒１５を第３図の右方向に回転させると、この１駆
動筒１５と共に内筒５が同方向に回転する。The notch 21 formed in the drive cylinder 15 is oriented in the opposite direction to the notch 11 formed in the inner periphery of the inner cylinder 5, so that 1.
When the drive cylinder 15 is rotated to the right in FIG. 3, the inner cylinder 5 rotates in the same direction together with this first drive cylinder 15.
な釦、一方クラッチ機構２０のニードル２３と対応する
内筒５の外周の円周方向にぎざ２４を形成すれば、駆動
筒１５の回転力を内筒５に確実に伝達することができる
。By forming a notch 24 in the circumferential direction on the outer periphery of the inner cylinder 5 corresponding to the needle 23 of the one-way clutch mechanism 20, the rotational force of the drive cylinder 15 can be reliably transmitted to the inner cylinder 5.
前記駆動筒１５の薄肉厚筒部１７の外側には調整リング
２５が嵌め合わされている。An adjustment ring 25 is fitted onto the outside of the thin-walled thick cylinder portion 17 of the drive cylinder 15 .
調整リング２５の外周一部はスリット２６の形成によっ
て軸方向に切り離され、上記スリット２６を挾む両側位
置に一対の突片２７，２７’ が形成され、一方の突片
２７に貫通させたボルト２８は他方の突片２７′ にね
じ込１れて勢り、上記ボルト２８を回転して一対の突片
２７，２７’ を互に引き寄せると、調整リング２５
が縮径し、これによって駆動筒１５の薄肉厚筒部１７が
内方向に変形する。A part of the outer circumference of the adjustment ring 25 is separated in the axial direction by forming a slit 26, and a pair of protrusions 27, 27' are formed on both sides of the slit 26, and a bolt passed through one of the protrusions 27 is formed. 28 is screwed into the other protrusion 27', and when the bolt 28 is rotated and the pair of protrusions 27, 27' are drawn together, the adjusting ring 25
is reduced in diameter, thereby deforming the thin-walled cylindrical portion 17 of the drive cylinder 15 inward.
調整リング２５の一方の突片２７′ には揺動軸２９が
連結され、この揺動軸２９はミシンの可動部と連動し、
上記ミシンの駆動によって第１図の矢印方向に設定角度
回転するようになっている。A swing shaft 29 is connected to one protrusion 27' of the adjustment ring 25, and this swing shaft 29 is interlocked with the movable part of the sewing machine.
The sewing machine is driven to rotate by a set angle in the direction of the arrow in FIG.
い１、揺動軸２９を揺動して調整リング２５を第３図の
右方向に回転させると、このリング２５と共に駆動筒１
５が同方向に回転し、その回転は一方クラッチ機構１０
を介して内筒５に伝達される。1. When the adjusting ring 25 is rotated to the right in FIG. 3 by swinging the swing shaft 29, the drive cylinder 1
5 rotate in the same direction, and the rotation is caused by one clutch mechanism 10
is transmitted to the inner cylinder 5 via.
このとき、逆転防止機構１０のニードル１３は切欠き１
１の広い部分に移動するため、内筒５は駆動筒１５と同
方向に回転し、端部に取付けた送りローラ８が一体に回
転する。At this time, the needle 13 of the reverse rotation prevention mechanism 10 is inserted into the notch 1.
1, the inner cylinder 5 rotates in the same direction as the drive cylinder 15, and the feed roller 8 attached to the end rotates together.
また、調整リング２５を第３図の左方向に回転させると
、一方クラッチ機構２０のニードル２３は切欠き２１の
広い部分に移動し、また内筒５は逆転防止機構１０の作
用によって制動されているため、駆動筒１５のみが回転
する。Furthermore, when the adjusting ring 25 is rotated to the left in FIG. Therefore, only the drive cylinder 15 rotates.
したがって、送りローラ８をミシンのテーブル上に置か
れた布に接触させることによって、この布を前方に送る
ことができる。Therefore, by bringing the feed roller 8 into contact with the fabric placed on the table of the sewing machine, this fabric can be fed forward.
上記のような作用にち−いて、一方クラッチ機構のニー
ドル２３は内筒５の外周に対して加圧接触するため、内
筒５の外周は摩耗し、その摩耗によってニードル２３０
食い込み力が次第に小さくなり、ついにはすべりが生じ
て一方クラッチの機能を失し、駆動筒１５の一方向の回
転を内筒５に伝達することができなくなる。Due to the above action, the needle 23 of the one-way clutch mechanism comes into pressurized contact with the outer periphery of the inner cylinder 5, so the outer periphery of the inner cylinder 5 wears out, and due to this wear, the needle 230
The biting force gradually decreases, and eventually slip occurs and the one-way clutch loses its function, making it impossible to transmit the rotation of the drive cylinder 15 in one direction to the inner cylinder 5.
このような時、第３図に示すボルト２８を回動して一対
の突片２７，２７’ を互に引き寄せると、調整リング
２５が縮径し、駆動筒１５の薄肉厚筒部１７が内方向に
変形するため、内筒５の外周に対するニードル２３の食
い込み力を向上させることができ、上記ボルト２８の締
付は力を加減することによって、ニードル２３の食い込
み力を適正な状態に保持することができる。In such a case, when the bolt 28 shown in FIG. Since the needle 23 is deformed in the direction, the biting force of the needle 23 against the outer periphery of the inner cylinder 5 can be improved, and by adjusting the tightening force of the bolt 28, the biting force of the needle 23 is maintained at an appropriate state. be able to.
な釦、実施例は、調整リング２５に揺動軸２９を連結し
ているが、上記揺動軸２９を駆動筒１５に連結して、こ
の駆動筒１５を回転駆動させるようにしてもよい。In the button and embodiment, a swing shaft 29 is connected to the adjustment ring 25, but the swing shaft 29 may be connected to the drive barrel 15 and the drive barrel 15 may be driven to rotate.
以上のように、この発明によれば、軸方向に切り離され
た調整リングをボルトの締付けによって縮径させること
によって、一方クラッチ機構と対応する駆動筒の薄肉厚
筒部を内方向に変形させることができるため、内筒の外
周に対する一方クラツチ機構のニードルの食い込み力を
任意に調整することができる。As described above, according to the present invention, the diameter of the axially separated adjustment ring is reduced by tightening the bolt, thereby deforming the thin-walled cylindrical portion of the drive cylinder corresponding to the one-way clutch mechanism inward. Therefore, the biting force of the needle of the one-way clutch mechanism against the outer periphery of the inner cylinder can be adjusted as desired.
このため、内筒の外周の加工が楽になり、また装置の寿
命向上に大きな効果をあげることができる。Therefore, machining of the outer periphery of the inner cylinder becomes easier, and the life of the device can be greatly improved.
第１図は、この発明に係る装置の一実施例を示す斜視図
、第２図は同上の要部の縦断正面図、第３図は第２図の
Ｉ−１線に沿った断面図である。
４・・・・・・横軸、５・・・・・・内筒、１０・・・
・・・逆転防止機構、１５・・・・・・駆動筒、１７・
・・・・・薄肉厚筒部、２０・・・・・・一方クラッチ
機構、２５・・・・・・調整リング、２８・・・・・・
ボルト。Fig. 1 is a perspective view showing an embodiment of the device according to the present invention, Fig. 2 is a longitudinal sectional front view of the main parts of the same, and Fig. 3 is a sectional view taken along line I-1 in Fig. 2. be. 4...Horizontal shaft, 5...Inner cylinder, 10...
...Reversal prevention mechanism, 15... Drive tube, 17.
... Thin-walled cylinder part, 20 ... One-way clutch mechanism, 25 ... Adjustment ring, 28 ...
bolt.
Claims (1)
周に送りローラを取付けた内筒と、上記内筒の外側に被
せられた駆動筒と、前記横軸と内筒との間に設けられて
上記内筒の一方向の回転を許容し、かつ他方向の回転を
阻止する逆転防止機構と、前記内筒と駆動筒との間に設
けられて駆動筒の一方向の回転のみを内筒に伝達する一
方クラッチ機構より成り、前記駆動筒の一方クラッチ機
構と対応する部分を変形可能な薄肉厚筒部とし、この薄
肉厚筒部の外側に外周一部が軸方向に切り離された調整
リングを嵌め合わせ、上記調整リングの切り離し部を挾
む両側縁をボルトによって締付は可能とし、この調整リ
ング及び駆動筒の一方を設定角度正逆方向に回転させる
ようにしたことを特徴とするミシンの布送り装置。1. A horizontal shaft, an inner cylinder that is placed on the outside of this horizontal shaft and has a feed roller attached to the outer periphery of one end, a drive cylinder that is placed on the outside of the inner cylinder, and the horizontal shaft and the inner cylinder. a reverse rotation prevention mechanism provided between the inner cylinder and the drive cylinder to allow rotation of the inner cylinder in one direction and prevent rotation in the other direction; and a reverse rotation prevention mechanism provided between the inner cylinder and the drive cylinder to rotate the drive cylinder in one direction. The driving cylinder has a one-way clutch mechanism that transmits only the power to the inner cylinder, and the part of the drive cylinder corresponding to the one-side clutch mechanism is a deformable thin-walled cylinder part, and a part of the outer circumference is separated in the axial direction outside of this thin-walled cylinder part. It is possible to fit the adjusted ring and tighten both sides of the adjusting ring with bolts between the separated parts of the adjusting ring, and to rotate this adjusting ring and one of the drive cylinders in the forward and reverse directions of the set angle. Features: Sewing machine cloth feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55174367A JPS5852676B2 (en) | 1980-12-08 | 1980-12-08 | Sewing machine cloth feed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55174367A JPS5852676B2 (en) | 1980-12-08 | 1980-12-08 | Sewing machine cloth feed device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5796683A JPS5796683A (en) | 1982-06-16 |
| JPS5852676B2 true JPS5852676B2 (en) | 1983-11-24 |
Family
ID=15977372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55174367A Expired JPS5852676B2 (en) | 1980-12-08 | 1980-12-08 | Sewing machine cloth feed device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5852676B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125291U (en) * | 1982-02-03 | 1983-08-25 | ティーディーケイ株式会社 | cassette tape |
| JPH0197480U (en) * | 1987-12-17 | 1989-06-28 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4625363B2 (en) * | 2005-04-28 | 2011-02-02 | Ｊｕｋｉ株式会社 | Sewing machine puller equipment |
| JP4625362B2 (en) * | 2005-04-28 | 2011-02-02 | Ｊｕｋｉ株式会社 | Sewing machine puller equipment |
| JP4861775B2 (en) * | 2006-08-31 | 2012-01-25 | 株式会社森本製作所 | Sewing machine puller equipment |
-
1980
- 1980-12-08 JP JP55174367A patent/JPS5852676B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58125291U (en) * | 1982-02-03 | 1983-08-25 | ティーディーケイ株式会社 | cassette tape |
| JPH0197480U (en) * | 1987-12-17 | 1989-06-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5796683A (en) | 1982-06-16 |
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