JPS64221Y2 - - Google Patents
Info
- Publication number
- JPS64221Y2 JPS64221Y2 JP1983139591U JP13959183U JPS64221Y2 JP S64221 Y2 JPS64221 Y2 JP S64221Y2 JP 1983139591 U JP1983139591 U JP 1983139591U JP 13959183 U JP13959183 U JP 13959183U JP S64221 Y2 JPS64221 Y2 JP S64221Y2
- Authority
- JP
- Japan
- Prior art keywords
- presser foot
- cloth
- upper presser
- fabric
- elastic piece
- 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
- 239000004744 fabric Substances 0.000 claims description 64
- 238000009958 sewing Methods 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
〔考案の対象〕
本考案はミシンの布保持器の改良に関するもの
である。[Detailed Description of the Invention] [Object of the Invention] The present invention relates to an improvement of a cloth holder for a sewing machine.
前記ミシンの布保持器は一般シシユウ縫いミシ
ン等の布保持等に利用出来る。
The cloth holder of the sewing machine can be used to hold cloth in general sew-stitch sewing machines, etc.
従来ミシンの布保持器として、特願昭55−
158633号(特開昭57−81369号)がある。このも
のは、枠内が中空に形成された外押え、前記外押
えの中空部側辺にはバネにより、一方向に付勢さ
れたテコ板を持つ複数の取付腕が配設され、前記
テコ板を変位させて前記外押えとの協働により、
布支持台間に布地を挟持し且つ針板上に押下展張
せしめる中押え、前記外押え及び中押えは、前記
支持台に配置された作動腕上のレバー操作によ
り、夫々その位置を昇降せしめ得るようにしたも
のである。
Patent application filed in 1984 as a cloth holder for conventional sewing machines.
There is No. 158633 (Japanese Unexamined Patent Publication No. 57-81369). This device includes an outer presser frame having a hollow frame, and a plurality of mounting arms each having a lever plate biased in one direction by a spring on the side of the hollow portion of the outer presser. By displacing the plate and working with the external presser,
The positions of the intermediate presser, the outer presser, and the intermediate presser, which hold the fabric between the fabric supports and press and spread it onto the throat plate, can be raised and lowered by operating a lever on an operating arm disposed on the support base. This is how it was done.
この従来技術のうち、特願昭55−158633号で
は、中押えの上下作動によりテコ板を変位させ
て、一度上下押えで布を押えた後、中央部の布を
テコ板で外方へ広げる様に押え布を張る構造にな
つている。従つて布は、確実に張られるが布保持
器全体が構造複雑となり、枠の重量が重くなり高
速スピードに対し不利となる。又コストアツプに
もなる欠点がある。
Among these conventional techniques, in Japanese Patent Application No. 55-158633, a lever plate is displaced by the vertical movement of an intermediate presser, and after the fabric is once pressed by the upper and lower pressers, the fabric in the center is spread outward with the lever plate. The structure is such that a presser cloth is stretched over it. Therefore, although the cloth can be stretched reliably, the structure of the entire cloth holder becomes complicated, and the weight of the frame becomes heavy, which is disadvantageous for high speeds. It also has the disadvantage of increasing costs.
そこで、本考案は、上の布押えの枠中心に対し
外方向に移動摺動しながら布を、下の布支えへ押
圧する様に複数個、板バネを固定することを、そ
の技術的課題とするものである。
Therefore, the present invention solves the technical problem of fixing a plurality of leaf springs so as to press the cloth against the lower cloth support while sliding outward from the center of the frame of the upper cloth presser foot. That is.
前記技術的課題を解決するために講じた技術的
手段は、上の布押えの枠中心に対し、略全周且つ
放射状にバネ性を有する弾性片を固定し、該弾性
片は、前記上の布押え下面より突き出されてい
て、該上の布押えの下降作用によつて、前記弾性
片先端は、前記上の布押えの枠中心に対し、外側
へ移動しながら布を摺動させ、布を前記下の布支
えへ押圧する様にすることである。
The technical means taken to solve the above technical problem is to fix an elastic piece having a spring property radially around the entire circumference to the center of the frame of the upper presser foot. The tip of the elastic piece protrudes from the lower surface of the presser foot, and by the lowering action of the upper presser foot, the tip of the elastic piece slides the fabric while moving outward from the center of the frame of the upper presser foot. is pressed against the lower cloth support.
前記技術的手段は、次のように作用する。すな
わち、送り作動腕3に布保持器取付部3’と上の
布押えを昇降させる押え上げ腕4とがあり、押え
上げ腕4は、常にバネ作用で、上の布押え5を下
方へ押圧する様作用している。今前記押え上げ腕
4を手動又は電磁作用により、上昇させ上の布押
え5を持ち上げ、布9を下の布支え6の上へ挟み
込む。そして押え腕4を下げると、上布押え5は
降下し、第4図に示す如く弾性片7の弾性片先端
部7aで前記布9を押圧する。更に前記押え上げ
腕4のバネ圧で、上の布押え5が降下すると、第
5図で示す如く前記弾性片7は、圧縮され、前記
上の布押え5と下の布支え6との間で前記布9
は、圧着される。この場合第6図に示す如く前記
弾性片7は、前記上の布押え5の降下で、寸法H
だけ圧縮すると同時に、前記弾性片7の先端部7
aが、7bの位置まで移動する。即ち寸法Aだけ
外方向へ移動することになる。この作用で前記弾
性片7の先端部7aの摩擦抵抗により布9が前記
上の布押え5枠の外方向へ水平移動し、布が張ら
れることとなる。と同時に前記上の布押え5の内
側枠に設けられた部10により前記布9は、前記
下の布支え6に圧着され更に布9を緊張すること
になる。
The said technical means work as follows. That is, the feed operation arm 3 has a cloth holder attachment part 3' and a presser foot lifting arm 4 that raises and lowers the upper presser foot, and the presser foot lifter arm 4 always presses the upper presser foot 5 downward by spring action. It seems to be working. Now, the presser foot lifting arm 4 is raised manually or by electromagnetic action, the upper presser foot 5 is lifted, and the cloth 9 is sandwiched onto the lower cloth support 6. Then, when the presser arm 4 is lowered, the upper cloth presser foot 5 is lowered and presses the cloth 9 with the tip end 7a of the elastic piece 7, as shown in FIG. Further, when the upper presser foot 5 is lowered by the spring pressure of the presser foot lifting arm 4, the elastic piece 7 is compressed as shown in FIG. In the above cloth 9
is crimped. In this case, as shown in FIG. 6, when the upper presser foot 5 lowers, the elastic piece 7 is
At the same time, the tip 7 of the elastic piece 7
a moves to position 7b. That is, it will move outward by the dimension A. Due to this action, the cloth 9 is horizontally moved outward of the upper presser foot 5 frame due to the frictional resistance of the tip 7a of the elastic piece 7, and the cloth is stretched. At the same time, the cloth 9 is pressed against the lower cloth support 6 by the portion 10 provided on the inner frame of the upper presser foot 5, thereby further tightening the cloth 9.
本考案は次の特有の効果を生じる。すなわち、
前記上の布押えが下の布支えまで移動して、両者
が布を挟み密着するまでの動きで、弾性片の布保
持部が自動的に、布を縫い中心に対し外方向(半
径方向)へ引張る作用を行なうため、普通のサイ
クル系ミシンに於ける布挟持方法同様に、布を挟
むのみで布が張られるわけで、いちいち布を、挟
む前に布を引張る必要がなく、又薄物生地に於け
る布のゆるみや、シワが出来ることなく、従来薄
物、メリヤス地に対し、縫製しにくい縫いが容易
に、縫製出来る効果がある。さらに、構造的にも
非常に簡単で、下の布支えは、薄い板状で良いか
ら挟んだ布と、針板とのスキマや、ミシンのベツ
ドとのスキマも少なく、布の動きに対し非常に安
定している。又布押えも、きわめて単純な構造で
あり製作上簡単でコストも安く、構成部品点数も
少なくてすむ為、保持器全体の重量も軽く、非常
にコンパクトに出来る。その上、弾性片を略全周
且つ放射状に固定しているので、布は、全方向に
わたり均等の力で展開され、いかなる布でも特定
の方向に伸びてシワになることはない。又、弾性
片はそれ自身がバネ性を有しているので、布に対
する保持力は、布の厚みに応じて、自動的に対応
することができいかなる布に対しても、最良の布
張り状態を得ることができる。
The present invention produces the following unique effects. That is,
When the upper presser foot moves to the lower cloth support and the two move until they sandwich the cloth and come into close contact with each other, the cloth holding section of the elastic piece automatically moves the cloth outward (radially) from the sewing center. Because of this, the fabric can be stretched by simply pinching it, similar to the fabric clamping method used in ordinary cycle sewing machines, so there is no need to pull the fabric each time before pinching it, and it is also possible to tighten thin fabrics. This has the effect that stitches that are conventionally difficult to sew can be easily sewn on thin and knitted fabrics without loosening or wrinkling the fabric. Furthermore, the structure is very simple, and the lower fabric support can be in the form of a thin plate, so there is little gap between the sandwiched fabric and the needle plate or the sewing machine bed, making it extremely sensitive to fabric movement. is stable. Furthermore, the presser foot has an extremely simple structure, is easy to manufacture, is inexpensive, and requires a small number of component parts, so the weight of the cage as a whole is light and can be made very compact. Furthermore, since the elastic pieces are fixed radially around the entire circumference, the cloth is spread out with equal force in all directions, and no cloth will stretch in a particular direction and wrinkle. In addition, since the elastic piece itself has spring properties, the holding force against the fabric can automatically adjust according to the thickness of the fabric, allowing it to achieve the best upholstery condition for any fabric. can be obtained.
以下、前記記述的手段の一具体例を示す実施例
について説明する。一般のサイクル系ミシンの布
保持器同様ミシン本体のアーム1、ベツド2との
間に送り作動腕3を設け、本腕3に下の布支え6
並びに上の布押え5を取りつけ、ミシン本体内に
設けた駆動装置により、針棒の上・下動に対し、
水平方向でX−Y方向に、自由に作動する構造
で、前記上の布押え5は、送り作動腕4により常
にスプリングで前記下の布支え6の方向へ押圧さ
れる様になつている。前記上の布押え5に布9を
押える為の枠裏面5”に、複数個の空間部5’を
設け、前記上の布押え5の空間部5’へ嵌合する
様に、弾性を有する断面が、の字状をした弾性片
7を複数個止めネジ8で固定せしめ、該弾性片7
の布保持部7aの布と接する部分は、布との摩擦
抵抗を大とする為、凹凸状の表面処理がほどこさ
れている。尚、本実施例の構造は、前記上の布押
えを四角形状としてあるが、他に円形の枠とし、
弾性片7を外周へ放射状に取付けた場合も同一効
果を得ることが出来る。
Hereinafter, an embodiment showing a specific example of the descriptive means will be described. Similar to the fabric holder of general cycle sewing machines, a feed operating arm 3 is provided between the arm 1 and the bed 2 of the sewing machine body, and the lower fabric support 6 is attached to the main arm 3.
In addition, the upper presser foot 5 is attached, and a drive device installed inside the sewing machine body moves the needle bar up and down.
It has a structure that can freely operate horizontally in the X-Y directions, and the upper cloth presser foot 5 is always pressed by a spring in the direction of the lower cloth support 6 by the feeding arm 4. A plurality of spaces 5' are provided on the back surface 5'' of the frame for pressing the cloth 9 on the upper presser foot 5, and the frame has elasticity so as to fit into the spaces 5' of the upper presser foot 5. A plurality of elastic pieces 7 each having a cross section are fixed with setscrews 8, and the elastic pieces 7 are
The portion of the cloth holding portion 7a that comes into contact with the cloth is subjected to an uneven surface treatment in order to increase the frictional resistance with the cloth. In addition, in the structure of this embodiment, the upper presser foot has a rectangular shape, but it also has a circular frame,
The same effect can be obtained also when the elastic pieces 7 are attached radially to the outer periphery.
第1図は、ミシン頭部へ本考案の保持器を装着
した正面図、第2図は、本考案布保持器本体の縦
断面図、第3図は、本考案布保持器本体の上から
見た平面図、第4図は、第3図AA断面に於ける
弾性片取付状態を表わす部分拡大縦断面図、第5
図は、第3図における上の布押えが降下して弾性
片が作用した状態を表わす部分拡大縦断面図、第
6図は、弾性片の作用説明図である。
5……上の布押え、6……下の布支え、7……
弾性片、9……布。
Fig. 1 is a front view of the holder of the present invention attached to the sewing machine head, Fig. 2 is a longitudinal sectional view of the main body of the fabric holder of the invention, and Fig. 3 is a view from above of the main body of the fabric holder of the present invention. The plan view, Figure 4, is a partially enlarged vertical cross-sectional view showing the attached state of the elastic piece in the cross section AA of Figure 3, and Figure 5.
The figure is a partially enlarged vertical cross-sectional view showing a state in which the upper presser foot in FIG. 3 is lowered and the elastic piece is in action, and FIG. 6 is an explanatory view of the action of the elastic piece. 5...Top presser foot, 6...Bottom fabric support, 7...
Elastic piece, 9...cloth.
Claims (1)
糸を挿通した針と、前記上の布押えと、下の布支
えとが相対上下運動してミシン縫いする、ミシン
の布保持器において、前記上の布押えの枠中心に
対し、略全周且つ放射状方向にバネ性を有する弾
性片を固定し、該弾性片は、前記上の布押え下面
より突き出されていて、該上の布押えの下降作用
によつて、前記弾性片先端は、前記上の布押え5
の枠中心に対し、外側へ移動しながら布9を摺動
させ、前記下の布支えへ押圧する様にせしめた、
ミシンの布保持器。 Sandwich the fabric between the upper presser foot and the lower fabric support,
In the fabric holder of a sewing machine, where a needle through which thread is inserted, the upper presser foot, and the lower cloth support move relative up and down to sew, the machine sews approximately all the way around the center of the frame of the upper presser foot. In addition, an elastic piece having a spring property is fixed in a radial direction, and the elastic piece protrudes from the lower surface of the upper presser foot, and the tip of the elastic piece is moved toward the lower surface of the upper presser foot by the downward action of the upper presser foot. Upper presser foot 5
sliding the cloth 9 while moving outward with respect to the center of the frame so as to press it against the lower cloth support;
Cloth holder for sewing machine.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13959183U JPS6047475U (en) | 1983-09-08 | 1983-09-08 | sewing machine cloth holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13959183U JPS6047475U (en) | 1983-09-08 | 1983-09-08 | sewing machine cloth holder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6047475U JPS6047475U (en) | 1985-04-03 |
JPS64221Y2 true JPS64221Y2 (en) | 1989-01-05 |
Family
ID=30312818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13959183U Granted JPS6047475U (en) | 1983-09-08 | 1983-09-08 | sewing machine cloth holder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6047475U (en) |
-
1983
- 1983-09-08 JP JP13959183U patent/JPS6047475U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6047475U (en) | 1985-04-03 |
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