JPS605900Y2 - Sliding buttonhole foot on sewing machine - Google Patents

Sliding buttonhole foot on sewing machine

Info

Publication number
JPS605900Y2
JPS605900Y2 JP5351479U JP5351479U JPS605900Y2 JP S605900 Y2 JPS605900 Y2 JP S605900Y2 JP 5351479 U JP5351479 U JP 5351479U JP 5351479 U JP5351479 U JP 5351479U JP S605900 Y2 JPS605900 Y2 JP S605900Y2
Authority
JP
Japan
Prior art keywords
slider
presser
cloth
presser foot
buttonhole
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
Application number
JP5351479U
Other languages
Japanese (ja)
Other versions
JPS55153075U (en
Inventor
昭雄 小室
Original Assignee
蛇の目ミシン工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 蛇の目ミシン工業株式会社 filed Critical 蛇の目ミシン工業株式会社
Priority to JP5351479U priority Critical patent/JPS605900Y2/en
Publication of JPS55153075U publication Critical patent/JPS55153075U/ja
Application granted granted Critical
Publication of JPS605900Y2 publication Critical patent/JPS605900Y2/en
Expired legal-status Critical Current

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  • Sewing Machines And Sewing (AREA)

Description

【考案の詳細な説明】 本考案はミシンにおけるボタンホール縫用として使用す
るスライド式ボタンホール押えに関するもので、ボタン
ホール縫目を正確且つ美麗に行わしめんとするものであ
る。
[Detailed Description of the Invention] The present invention relates to a sliding buttonhole presser used for sewing buttonholes on a sewing machine, and is intended to allow buttonholes to be sewn accurately and beautifully.

従来よりミシンによってボタンホール縫を行う場合、第
1図に示す如きスライド式ボタンホール押え、すなわち
押え棒に固着される取付体(以上いずれも図示せず)に
装着された押え足1と該押え足に嵌装し押え棒に付与さ
れた押え圧によって布に押し付けられ且つ布と共に布送
り方向に摺動するスライダ2とから成る押えがかなり使
用されているが、このような押えでボタンホール縫を行
うと第2図示の如き左右縫目の平行な正しいボタンホー
ル縫目に対して第3図示の如く左、右縫目の交差した不
良なボタンホール縫目となることがある。
Conventionally, when sewing buttonholes with a sewing machine, a sliding buttonhole presser as shown in FIG. A presser foot consisting of a slider 2 that is fitted onto the foot and is pressed against the cloth by the presser foot pressure applied to the presser foot bar and slides along with the cloth in the cloth feeding direction is often used. If this is done, a correct buttonhole stitch with parallel left and right stitches as shown in the second figure may result in a defective buttonhole stitch in which the left and right stitches intersect as shown in the third figure.

この要因を第4図によって説明すると、3はスライダ2
との協働作用により布を挾持して布に布送り運動を付与
する送り歯、4は該送り歯が装着された送り台で枢着点
Pを中心として揺動運動する。
To explain this factor with reference to FIG. 4, 3 is the slider 2.
A feed dog 4, which clamps the cloth and imparts a cloth feeding motion to the cloth by cooperation with the feed dog 4, swings about a pivot point P on the feed table to which the feed dog is attached.

而して送り歯3が送り台4の揺動運動により上下運動す
る場合、送り歯3の頂面に付与された公知の押え棒の押
え圧Fにより送り歯3および送り台4が点線に示す如く
弾性変形し、針板6上面より突出している送り歯3の頂
面がaだけ沈下する。
When the feed dog 3 moves up and down due to the rocking motion of the feed base 4, the feed dog 3 and the feed base 4 move as shown by the dotted line due to the presser pressure F of a known presser bar applied to the top surface of the feed dog 3. As a result, the top surface of the feed dog 3 protruding from the upper surface of the throat plate 6 sinks by an amount a.

このaの変形によって送り台4は枢着点Pを中心として
移動し、それに伴って送り歯4の歯先端はbだけ横に移
動する。
Due to this deformation of a, the feed table 4 moves around the pivot point P, and the tooth tip of the feed dog 4 moves laterally by an amount b.

この横送り量すの大きさは送り歯3および送り台4の剛
性と送り台4の枢着点Pに対する送り歯3の歯先端との
関係位置により定まるベクトルによって変化する。
The magnitude of this lateral feed amount varies depending on a vector determined by the rigidity of the feed dog 3 and the feed base 4 and the relative position of the tooth tip of the feed dog 3 with respect to the pivot point P of the feed base 4.

この横送り量すは送り歯3の布送り運動−封缶に生ずる
ため布は一針毎に押え圧Fの水平分力たる横送り力FH
を受け、第3図示の如く正しい布送り方向A−Aに対し
て傾斜した不正方向に送られる。
This horizontal feed amount is the cloth feed movement of the feed dog 3 - the cloth is applied to each stitch of cloth due to the cloth feed movement of the feed dog 3, which is the horizontal component of the presser foot pressure FH
Then, as shown in the third diagram, the cloth is fed in an incorrect direction that is inclined with respect to the correct cloth feeding direction A-A.

またボタンホール縫の場合は、一方の側が前進縫に対し
他方の側が後進縫で縫目を構成しており、夫々の縫に際
して略同等の横送り力FHが布に対して作用しているの
で第3図示の如く左右縫目の交差した不良なボタンホー
ル縫目となるものである。
In addition, in the case of buttonhole sewing, the stitches are made up of forward sewing on one side and backward sewing on the other side, and approximately the same cross-feeding force FH acts on the fabric during each sewing. As shown in Figure 3, the left and right stitches intersect, resulting in a defective buttonhole stitch.

このような布の横送り現象は、送り歯3および送り台4
の剛性を著しく強固にすれば解消するが、実際には他の
機構との空間的制約および送り歯3、送り台4それ自体
の布送り運動のため補強余地がない。
This horizontal feeding phenomenon of the cloth is caused by the feed dog 3 and the feed base 4.
This can be solved by significantly increasing the rigidity of the mechanism, but in reality there is no room for reinforcement due to space constraints with other mechanisms and the cloth feeding movement of the feed dog 3 and the feed table 4 themselves.

本考案は上記したような実情に鑑みて、その欠点を除去
すべく検討を加えた結果、簡単な構成でもって布の横送
り現象を解消し、もって正確かつ美麗なボタンホール縫
目が得られるスライド式ボタンホール押えを開発したも
ので、以下その実施例を図面によって説明する。
In view of the above-mentioned circumstances, this invention has been developed to eliminate the shortcomings, and as a result, it has a simple structure that eliminates the phenomenon of cross-feeding of cloth, thereby achieving accurate and beautiful buttonhole stitches. A sliding buttonhole presser has been developed, and examples thereof will be described below with reference to the drawings.

11は平板部11aと2つの立ち上がり部11bとから
戒る合成樹脂製の押え足で、これら立ち上がり部の間に
は水平方向に横たわる結合ピン12が植設されており、
該押え足は公知の押え棒に固着された取付体(以上いず
れも図示せず)に結合ピン12を介して着脱自在に取付
けられる。
Reference numeral 11 denotes a synthetic resin presser foot consisting of a flat plate portion 11a and two rising portions 11b, between which a connecting pin 12 lying horizontally is planted.
The presser foot is removably attached via a connecting pin 12 to a mounting body (none of which is shown) fixed to a known presser bar.

13は押え足11の平板部11aの左端中央部に形成さ
れたボタンホール縫目を監視するための切欠部、14は
押え足11の平板部11aの底面中央部に長手方向に切
欠部13の端面より平板部11aの右端面付近にわたっ
て突出形成された細幅の突片で、その頂面ば後記するス
ライダ2の在高接片22の底面と同じか僅か低くなる如
く設定されている。
Reference numeral 13 indicates a notch for monitoring the buttonhole stitch formed at the center of the left end of the flat plate portion 11a of the presser foot 11; It is a narrow projecting piece formed to protrude from the end face to the vicinity of the right end face of the flat plate portion 11a, and its top face is set to be the same as or slightly lower than the bottom face of the height contact piece 22 of the slider 2, which will be described later.

15は押え足11平板部11aの上面に標示された矢印
状の位置指定部である。
Reference numeral 15 denotes an arrow-shaped position specifying portion marked on the upper surface of the flat plate portion 11a of the presser foot 11.

この押え足11に嵌合し布送り方向に摺動するスライダ
は、第1図に示す公知のスライダ2と全く同一であり、
その詳細について説明すると、16は前、後両端面に断
面口状に上方内側に僅かに折返された案内片で、この案
内片によって形成された摺動116a間の距離では押え
足11の平板部11aの前、後両端面間の距離で1 と
同じか僅か大になる如く設定されている。
The slider that fits into this presser foot 11 and slides in the cloth feeding direction is exactly the same as the known slider 2 shown in FIG.
To explain the details, reference numeral 16 denotes a guide piece which is slightly folded upward and inward in the shape of a cross-sectional opening on both the front and rear end surfaces. The distance between the front and rear end surfaces of 11a is set to be equal to or slightly larger than 1.

また摺動溝16aの幅は押え足11の平板部11aの板
厚より僅か大になる如く設定されている。
Further, the width of the sliding groove 16a is set to be slightly larger than the thickness of the flat plate portion 11a of the presser foot 11.

17はスライダ2の中間部に長手方向にボタンホール縫
目を縫戒するため穿設された長手方向の針落ち穴、18
はスライダ2左端面に直角に上方に直角状に折曲された
左側壁、19.20はスライダ2の左右端面中央部に形
成された挾持片および舌片で、舌片20にボタンホール
用の心ひも(図示せず)の折曲部を引掛けると共に挾持
片19に心ひもの開放部を挾持する如く設定されている
17 is a longitudinal needle drop hole drilled in the middle of the slider 2 in order to sew buttonhole stitches in the longitudinal direction; 18;
19.20 is a left side wall bent upward at right angles to the left end surface of the slider 2, and 19.20 is a gripping piece and a tongue piece formed at the center of the left and right end faces of the slider 2; It is set so that the bent part of the core cord (not shown) is hooked, and the open part of the core cord is clamped by the clamping piece 19.

21はスライダ2の後側の案内片16頂面に標示された
目盛部で、この目盛部の適宜な位置に押え足11の位置
指定部15を合わせることによってボタンホール縫の縫
い始め位置がきまり、もってボタンホール縫目の大きさ
が決定するものである。
Reference numeral 21 denotes a scale section marked on the top surface of the guide piece 16 on the rear side of the slider 2. By aligning the position specifying section 15 of the presser foot 11 with an appropriate position on this scale section, the sewing start position for buttonhole sewing is determined. , which determines the size of the buttonhole stitch.

22はスライダ2の底面にはりつけられたゴム、合成樹
脂等の比較的摩擦係数大なる材質で形成の在高接片であ
る。
Reference numeral 22 denotes a high contact piece made of a material having a relatively large coefficient of friction, such as rubber or synthetic resin, which is attached to the bottom surface of the slider 2.

而して押え足11とスライダ2とを組み合わせるには、
スライダ2の案内片16の摺動溝16aに押え足11の
平板部11aを嵌装せしめた後、スライダ2右端面を直
角に上方に折返し右側壁23とスライダ2の押え足11
から脱落を防止することによって行われる。
Therefore, in order to combine the presser foot 11 and the slider 2,
After fitting the flat plate portion 11a of the presser foot 11 into the sliding groove 16a of the guide piece 16 of the slider 2, the right end surface of the slider 2 is folded upward at a right angle, and the right side wall 23 and the presser foot 11 of the slider 2 are folded upward.
This is done by preventing it from falling off.

本考案は以上の如く構成されており、ボタンホール縫に
際してスライダ2の在高接片22と送り歯3との間に挾
持された布は、送り歯3の布送り運動に伴ってスライダ
2と共に布送り方向に移動する。
The present invention is constructed as described above, and when sewing buttonholes, the cloth held between the height contact piece 22 of the slider 2 and the feed dog 3 moves together with the slider 2 as the feed dog 3 moves to feed the cloth. Move in the cloth feeding direction.

而して第1ステツプとして第2図示の右側の縫目Cを前
進(また後進)の布送りによって構戊するものであるが
、この際第9図示の如く布Sは前述の如く横送り力FH
によって左方向に移動しようとするが、突片14の右側
面14aに既に縫われている縫目Cが当接して布Sの横
送り方向への移動は制限される。
As a first step, the seam C on the right side shown in the second figure is constructed by forward (and backward) cloth feeding, but at this time, as shown in the ninth figure, the cloth S is subjected to the cross-feeding force as described above. FH
However, the seam C that has already been sewn on the right side surface 14a of the protruding piece 14 comes into contact with the cloth S, and the movement of the cloth S in the cross-feeding direction is restricted.

次に第2ステツプの前パータックdを構威し、第3ステ
ツプの左側縫目eを後進(または前進)の布送りによっ
て構威するものであるが、この際布Sは右側の縫目Cを
構威したときと同様横送り力FHによって左方向に移動
しようとするが、突片14の右側面14aに既に縫われ
ている右側の縫目Cが当接して布Sの横送り方向への移
動は制限される。
Next, the front part tuck d of the second step is arranged, and the left side seam e of the third step is arranged by backward (or forward) cloth feeding. As with when the fabric S is set up, it tries to move to the left by the cross-feeding force FH, but the right side seam C that has already been sewn comes into contact with the right side surface 14a of the protruding piece 14, and the cloth S moves in the cross-feed direction. movement is restricted.

最後に第4ステツプの後パータックfを構成することに
よってボタンホール縫目が完成する。
Finally, after the fourth step, the buttonhole stitch is completed by forming the part tuck f.

以上の如く本考案によれば押え足とスライダとから成る
スライド式ボタンホール押えにおいてボタンホール縫を
行う場合、押え足の底面に設けた突片によって布の横送
り方向の移動は制限され、もって正確且つ美麗なボタン
ホール縫目が得られるものであり、しかも構造が簡単で
ある等実用上極めて有用な考案である。
As described above, according to the present invention, when sewing buttonholes with a sliding buttonhole presser consisting of a presser foot and a slider, the protrusion provided on the bottom of the presser foot restricts the movement of the cloth in the cross-feeding direction. This invention is extremely useful in practice, as it allows accurate and beautiful buttonhole stitches, and has a simple structure.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来品のスライド式ボタンホール押えの斜面図
、第2図は良好なボタンホール縫目、第3図は不良なボ
タンホール縫目、第4図は送り歯と送り台とが押え圧に
よって変形する状態を示す説明図、第5図は本考案に係
るスライド式ボタンホール押えの斜面図、第6図は本考
案に係る押え足の斜面図、第7図は第6図の裏面を示す
斜面図、第8図は第5図における結合ピンの軸線を含む
縦断面図、第9図は押え足の突片の作用を示す説明図で
ある。 図中、2はスライダ、11は押え足、14は突片、16
は案内片、22は在高接片である。
Figure 1 is a slope view of a conventional sliding buttonhole presser, Figure 2 shows a good buttonhole seam, Figure 3 shows a bad buttonhole seam, and Figure 4 shows that the feed dog and feed base are attached to the presser foot. An explanatory diagram showing the state of deformation due to pressure, FIG. 5 is a slope view of the sliding buttonhole presser foot according to the present invention, FIG. 6 is a slope view of the presser foot according to the present invention, and FIG. 7 is the back side of FIG. 6. FIG. 8 is a longitudinal sectional view including the axis of the coupling pin in FIG. 5, and FIG. 9 is an explanatory view showing the action of the protruding piece of the presser foot. In the figure, 2 is a slider, 11 is a presser foot, 14 is a protruding piece, 16
2 is a guide piece, and 22 is a height contact piece.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 押え棒に固着される取付体に装着された押え足11と、
該押え足に見動自在に嵌装せしめられ長方形の針落ち穴
が穿設された案内片16および底面に布と当接する在高
接片22を設けたスライダ2とから成るミシンにおける
スライド式ボタンホール押えにおいて、前記押え足11
の底面の略中央部の長手方向に延び且つ前記スライダ2
の針落ち穴を通じて在高接片22と略同じ高さにまで下
方に突出せる細幅の突片14を設けたことを特徴とする
ミシンにおけるスライド式ボタンホール押え。
a presser foot 11 attached to a mounting body fixed to the presser bar;
A sliding button for a sewing machine comprising a guide piece 16 that is fitted in the presser foot so as to be visible and has a rectangular needle drop hole, and a slider 2 that has a height contact piece 22 on the bottom surface that comes into contact with the cloth. In the hole presser, the presser foot 11
The slider 2 extends in the longitudinal direction of the substantially central portion of the bottom surface of the slider 2.
A sliding buttonhole presser for a sewing machine, characterized in that a narrow protrusion 14 is provided that can protrude downward to approximately the same height as the height contact piece 22 through the needle drop hole.
JP5351479U 1979-04-23 1979-04-23 Sliding buttonhole foot on sewing machine Expired JPS605900Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5351479U JPS605900Y2 (en) 1979-04-23 1979-04-23 Sliding buttonhole foot on sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5351479U JPS605900Y2 (en) 1979-04-23 1979-04-23 Sliding buttonhole foot on sewing machine

Publications (2)

Publication Number Publication Date
JPS55153075U JPS55153075U (en) 1980-11-05
JPS605900Y2 true JPS605900Y2 (en) 1985-02-23

Family

ID=28946596

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5351479U Expired JPS605900Y2 (en) 1979-04-23 1979-04-23 Sliding buttonhole foot on sewing machine

Country Status (1)

Country Link
JP (1) JPS605900Y2 (en)

Also Published As

Publication number Publication date
JPS55153075U (en) 1980-11-05

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