JPS6359713B2 - - Google Patents

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Publication number
JPS6359713B2
JPS6359713B2 JP5010880A JP5010880A JPS6359713B2 JP S6359713 B2 JPS6359713 B2 JP S6359713B2 JP 5010880 A JP5010880 A JP 5010880A JP 5010880 A JP5010880 A JP 5010880A JP S6359713 B2 JPS6359713 B2 JP S6359713B2
Authority
JP
Japan
Prior art keywords
presser
core
core string
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
JP5010880A
Other languages
Japanese (ja)
Other versions
JPS56145889A (en
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 filed Critical
Priority to JP5010880A priority Critical patent/JPS56145889A/en
Publication of JPS56145889A publication Critical patent/JPS56145889A/en
Publication of JPS6359713B2 publication Critical patent/JPS6359713B2/ja
Granted legal-status Critical Current

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  • Sewing Machines And Sewing (AREA)

Description

【発明の詳細な説明】 技術分野 この発明は、釦孔かがり縫目中に芯紐を縫込み
得、丈夫でかつ外観良好な釦孔を形成し得る釦孔
かがり用布押え装置に関するものである。
[Detailed Description of the Invention] Technical Field The present invention relates to a presser foot device for buttonhole stitching that can sew a core string into the buttonhole stitch and form a durable buttonhole with a good appearance. .

従来技術 従来、釦孔かがり縫目中に芯紐を配置し得るよ
うに構成された家庭用ミシンにおける布押え装置
としては、例えば実公昭38−27865号公報に記載
されたものがある。この装置は第11図に示すよ
うに、加工布を押圧してその加工布とともに布送
り方向に送られる押え枠体41の後端に、二つ折
りにされた芯紐Sの折曲部Saを掛止して、ミシ
ンの押え棒に取付けられる押え部体42の針貫通
用開口43を通して上下往復動する針によつて芯
紐Sの両紐肢Sb,Scを両側かがり縫目中に縫込
むように孔かがり縫を行うものである。従つて、
第12図に示すような矩形状釦孔かがりHに芯紐
Sを入れる場合、孔かがり縫が終了した時点にお
いては、芯紐Sの折曲部Saが孔かがり縫目Hの
一端閂止め部Haを外方に位置しており、芯紐S
の両紐肢Sb,Scを矢印方向に引張つて折曲部Sa
を閂止め部Ha中に入り込ませる必要がある。こ
のように、前記従来装置では、釦孔かがりHの縫
目反転部を構成する一端部Haにて芯紐Sを縫込
むことができないため、その芯紐Sは抜け易い。
しかも第13図に示すようなはとめ釦孔かがりJ
においては、その縫目反転部を構成する円弧状部
Jaが、前述の矩形状釦孔かがりHの如く、芯紐
Sの折曲部Saを入り込ませ得るように形成され
ないため、芯紐入りのはとめ釦孔かがりを形成す
ること自体が不可能であつた。
BACKGROUND OF THE INVENTION Conventionally, as a presser foot device for a household sewing machine configured to allow a core string to be placed in a buttonhole stitch, there is one described in, for example, Japanese Utility Model Publication No. 38-27865. As shown in FIG. 11, this device has a bent portion Sa of a core string S folded in half at the rear end of a presser frame 41 that presses the work cloth and sends it along with the work cloth in the cloth feeding direction. Both string limbs Sb and Sc of the core string S are sewn into the overcast stitches on both sides by a needle that reciprocates up and down through the needle penetration opening 43 of the presser foot body 42 attached to the presser foot bar of the sewing machine. This is a method of over-stitching. Therefore,
When inserting the core string S into a rectangular buttonhole stitch H as shown in FIG. 12, when the buttonhole stitching is completed, the bent portion Sa of the core string S is at the bar-tacked portion at one end of the buttonhole stitch H. Ha is located outward, and the core string S
Pull both string limbs Sb and Sc in the direction of the arrow to bend the bent part Sa
It is necessary to insert it into the bar tacking part Ha. As described above, in the conventional device, the core string S cannot be sewn in at the one end portion Ha that constitutes the stitch reversal portion of the buttonhole overlay H, and therefore the core string S easily comes off.
In addition, the eyelet button hole J as shown in Figure 13
, the arc-shaped part that constitutes the seam inversion part
Since Ja is not formed in such a way that the bent part Sa of the core string S can be inserted into it like the rectangular button hole H described above, it is impossible to form an eyelet button hole with a core string included. It was hot.

又、工業用釦孔かがりミシンにおいては、専用
の芯紐案内装置がミシンに組込まれ、矩形状の釦
孔かがりHはもとよりはとめ釦孔かがりJにも芯
紐を縫込み得るようにしたものがあるが、構造が
複雑になるとともに、大型化して、家庭用ミシン
において実用化するのは事実上不可能であつた。
In addition, in an industrial buttonhole sewing machine, a special core string guide device is built into the sewing machine so that the core string can be sewn not only into the rectangular buttonhole H but also into the stopper buttonhole J. However, the structure was complicated and large, making it virtually impossible to put it into practical use in home sewing machines.

発明の目的 この発明の第一の目的は、工業用ミシンにおけ
る如き専用の芯紐案内装置を必要とせず、芯紐を
入れない通常の釦孔かがりの形成及び芯紐入りの
釦孔かがりの形成に共通に使用し得、且つ芯紐入
り釦孔かがりの遂行においては、たとえはとめ孔
かがりであつてもきわめて簡便に芯紐を孔かがり
縫目中に縫込み得る布押え装置を提供することに
あり、又、この発明の第二の目的は、前記第一の
目的に加えて、その芯紐の縫込みを形成される釦
孔かがりの長さに応じて所定の位置に正確かつ確
実に行い得る布押え装置を提供することにある。
Purpose of the Invention The first object of the present invention is to form a normal buttonhole stitch without a core string and a buttonhole stitch with a core string without requiring a dedicated core string guide device as in industrial sewing machines. To provide a presser foot device which can be commonly used in buttonhole stitching with a core string, and which can very easily sew a core string into a buttonhole stitch even when sewing eyelet holes. In addition to the first object, a second object of the present invention is to accurately and reliably sew the core cord into a predetermined position depending on the length of the button hole to be formed. An object of the present invention is to provide a presser foot device that can perform the same operations.

実施例 以下、この発明を具体化した一実施例を図面に
基づいて説明する。はじめに、この実施例の布押
え装置が装着されるミシンについて、この実施例
と関連する部分の構成のみを説明すると、ミシン
頭部51には押え棒52と、下端にミシン針53
を有する針棒54との外に、検出レバー55が設
けられ、この検出レバー55が前方及び後方に回
動されることにより、釦孔かがりの遂行に必要な
縫目データの切換えが行われ、ミシン針53と糸
輪捕促器(図示しない)及び送り歯(図示しな
い)の協働により形成される縫目が適宜変更され
るようになつている。
Embodiment Hereinafter, an embodiment embodying the present invention will be described based on the drawings. First, regarding the sewing machine to which the presser foot device of this embodiment is installed, only the configuration of the parts related to this embodiment will be explained.
A detection lever 55 is provided in addition to the needle bar 54 having a needle bar 54, and by rotating the detection lever 55 forward and backward, stitch data necessary for buttonhole stitching is switched. The stitches formed by the cooperation of the sewing machine needle 53, a thread ring catcher (not shown), and a feed dog (not shown) can be changed as appropriate.

次に、図面中1で示されるこの実施例の釦孔か
がり用布押え装置の構成を説明すると、第4図に
示すように、前記押え棒52の下端には締付けね
じ61により公知の押えホルダー62が固定され
ており、その押えホルダー62に軸ピン2を介し
て着脱可能に取付けられる押え部体3には、前記
ミシン針53が貫通するための針貫通用開口5が
透設されている。その押え部体3には押え枠体4
が両側のチヤンネル状レール部4aにおいて摺動
可能に装着され、その押え枠体4には前記針53
が貫通するための針貫通用長孔6が透設されてい
る。
Next, the structure of the presser foot device for buttonhole stitching of this embodiment, indicated by 1 in the drawings, will be explained. As shown in FIG. 62 is fixed, and the presser foot body 3, which is removably attached to the presser foot holder 62 via the shaft pin 2, has a needle penetration opening 5 through which the sewing machine needle 53 passes through. . The presser frame body 4 is attached to the presser frame body 3.
are slidably mounted on the channel-shaped rail portions 4a on both sides, and the needle 53 is attached to the presser frame 4.
A long hole 6 for needle penetration is provided through the needle.

前記押え枠体4の下面には摩擦係数の大きな弾
性体7が貼着されている。そして、前記押え枠体
4は、この弾性体7を介して針板56上に載置さ
れる加工布Cを押圧し、縫製時における送り歯の
作用による加工布Cの移動に伴つて、その加工布
Cとともに押え部体3に対して相対的に移動する
ようになつている。
An elastic body 7 having a large friction coefficient is attached to the lower surface of the presser frame body 4. The presser frame body 4 presses the work cloth C placed on the throat plate 56 via the elastic body 7, and as the work cloth C moves due to the action of the feed dog during sewing, the presser frame body 4 presses the work cloth C placed on the throat plate 56. It is adapted to move together with the work cloth C relative to the presser body 3.

押え枠体4の一側ほぼ中央部には前記検出レバ
ー55の下端に前方より接離可能に対向する固定
ドツグ8が固定されている。同じく押え枠体4の
前端には、前記押え部体3の前端に係合可能に対
向し、押え枠体4の押え部体3に対する後方への
相対的移動位置を規制し得るようにした前部枠体
9が固着されている。その前部枠体9の中空部9
a内にはゼンマイばね10が設けられ、その一端
が前記押え部体3に係着されており、押え枠体4
を押え部体3に対して相対的に後方へ向かつて付
勢している。又、前部枠体9の側端縁には一対の
紐ガイド溝11が形成されている。
A fixed dog 8 is fixed to the substantially central portion of one side of the presser frame 4 and faces the lower end of the detection lever 55 so as to be able to approach and separate from the front. Similarly, at the front end of the presser frame 4, there is a front that engageably faces the front end of the presser body 3 and is capable of regulating the rearward relative movement position of the presser frame 4 with respect to the presser body 3. A part frame body 9 is fixed. Hollow portion 9 of its front frame 9
A spiral spring 10 is provided inside a, one end of which is attached to the presser frame body 3, and the presser frame body 4
is biased toward the rear relative to the presser body 3. Further, a pair of string guide grooves 11 are formed at the side edges of the front frame body 9.

押え部体3の中央には前後に延びるスリツト1
2が透設され、そのスリツト12には芯紐保持部
材13が挿嵌されて軸14により回動可能に支持
されている。この芯紐保持部材13の前端には、
前記針貫通用開口5の後縁近傍に位置し、スリツ
ト12から出没可能な下向き鉤状に芯紐保持部1
3aが形成され、その芯紐保持部13aには二つ
折りにされた芯紐Sの中間折曲部Saを掛止し得
るようになつている。又、芯紐保持部材13の後
端には、押え部体3の上面側に突出する係合部1
3bと、押え部体3の下面側に突出するストツパ
部13cとが一体形成され、第6図に示すよう
に、芯紐保持部材13が回動されてその芯紐保持
部13aが押え枠体4の下面より突出するとき、
ストツパ部13cが押え部体3と係合して芯紐保
持部材13をその状態に保持するようになつてい
る。前記係合部13bと押え部体3との間には板
ばね15が介在され、前記芯紐保持部13aがス
リツト12から下方へ突出する方向に芯紐保持部
材13を回動付勢している。
There is a slit 1 in the center of the presser body 3 that extends back and forth.
2 is transparently provided, and a core string holding member 13 is inserted into the slit 12 and rotatably supported by a shaft 14. At the front end of this core string holding member 13,
The core string holding portion 1 is located near the rear edge of the needle penetration opening 5 and has a downward hook shape that can be retracted from the slit 12.
3a is formed, and the intermediate bent portion Sa of the core string S folded in half can be hooked to the core string holding portion 13a. Further, at the rear end of the core string holding member 13, an engaging portion 1 that protrudes toward the upper surface side of the presser body 3 is provided.
3b and a stopper part 13c protruding from the lower surface side of the presser frame body 3 are integrally formed, and as shown in FIG. When protruding from the bottom surface of 4,
The stopper portion 13c engages with the presser member 3 to hold the core string holding member 13 in that state. A leaf spring 15 is interposed between the engaging portion 13b and the presser body 3, and rotates and biases the core string holding member 13 in a direction in which the core string holding portion 13a projects downward from the slit 12. There is.

第5図に示すように、押え部体3の下面におけ
る前記針貫通用開口5の前縁部には3個の突起1
6が一体形成され、それらの間に前記一対の紐ガ
イド溝11と対応する一対の紐ガイド溝16aが
構成され、前記芯紐保持部13aに掛止された芯
紐Sの両紐肢Sb,Scをガイドできるようになつ
ている。又、針貫通用開口5の後縁部における前
記芯紐保持部13aの両側位置には前記各突起1
6のうち両端のものと対応する一対の突起17が
一体形成されている。
As shown in FIG. 5, three projections 1 are provided on the front edge of the needle penetration opening 5 on the lower surface of the presser body
6 are integrally formed, a pair of string guide grooves 16a corresponding to the pair of string guide grooves 11 are formed between them, and both string limbs Sb, Now able to guide Sc. Further, each of the projections 1 is located at both sides of the core string holding portion 13a at the rear edge of the needle penetration opening 5.
A pair of protrusions 17 corresponding to those at both ends of the protrusions 6 are integrally formed.

押え部体3には、その後端において軸19によ
り隔離板18が回動可能に支持され、第4図に示
すように押え部体3の下面に近接して対向する位
置と、第6図に示すように押え部体3の下面から
離れた位置との間において移動可能である。この
隔離板18の先端部は折曲され、前記紐ガイド溝
16aと対応する切欠部21,22が形成されて
いる。又、その両切欠部21,22の後方寄りに
は、前記針貫通用開口5と対応し、隔離板18が
押え部体3の下面に近接するように配置されたと
きに、その押え部体3の針貫通用開口5と合致す
る針貫通用開口20が透設されている。この針貫
通用開口20は前記一方の切欠部21に連絡され
ている。
A separator plate 18 is rotatably supported by a shaft 19 at the rear end of the presser body 3, and has two positions, one in which it faces closely to the lower surface of the presser body 3 as shown in FIG. 4, and the other in FIG. As shown, it is movable between a position away from the lower surface of the presser body 3. The distal end of the separator 18 is bent to form cutouts 21 and 22 corresponding to the string guide groove 16a. Further, the rear portions of both the notches 21 and 22 correspond to the needle penetration opening 5, and when the separator plate 18 is disposed close to the lower surface of the presser body 3, the presser body A needle penetration opening 20 that matches the needle penetration opening 5 of No. 3 is transparently provided. This needle penetration opening 20 is connected to the one notch 21 .

そして、第4図に示すように、押え棒52が下
降されて押え装置1が加工布Cを押圧するときに
は、前記隔離板18が前記弾性体7の開口内にお
いて押え部体3の下面を覆う位置に配置され、前
記芯紐保持部材13の芯紐保持部13aが前記板
ばね15の付勢力によりこの隔離板18の上面に
係合され、その芯紐保持部13aが加工布Cに直
接触れるのが阻止される。又、第6図に示すよう
に、押え棒52が上昇されたときには、隔離板1
8が自重により下方へ離脱回動して、板ばね15
により付勢されている芯紐保持部材13の芯紐保
持部13aが押え枠体4より下方へ突出するのを
許容するようになつており、この状態において作
業者は芯紐保持部13aを前方より目視できるよ
うになつている。なお、隔離板18が第4図の位
置に配置されたときには、その隔離板18の下面
は前記弾性体7の下面と合致する。
As shown in FIG. 4, when the presser bar 52 is lowered and the presser device 1 presses the work cloth C, the separator 18 covers the lower surface of the presser body 3 within the opening of the elastic body 7. The core string holding part 13a of the core string holding member 13 is engaged with the upper surface of the separating plate 18 by the biasing force of the leaf spring 15, and the core string holding part 13a directly touches the work cloth C. is prevented. Further, as shown in FIG. 6, when the presser bar 52 is raised, the separator 1
8 detaches and rotates downward due to its own weight, and the leaf spring 15
This allows the core string holding portion 13a of the core string holding member 13, which is biased by the It's becoming more visible. Note that when the separator 18 is placed in the position shown in FIG. 4, the lower surface of the separator 18 matches the lower surface of the elastic body 7.

前記押え枠体4の後端には固定部材としての後
部枠体23が固着され、そのほぼ中央部には内周
面をガイド通路24aとした跨設部24が一体形
成されている。
A rear frame body 23 as a fixing member is fixed to the rear end of the presser frame body 4, and a straddling portion 24 whose inner peripheral surface is a guide passage 24a is integrally formed approximately at the center thereof.

前記後部枠体23上にはガイド通路24aを通
る可動部材25が前後動可能に支持され、その上
面に連続形成された凹凸部25aには跨設部24
に設けられた板状の係止ばね26がその突部にて
係合して、この可動部材25が任意の位置で弾性
的に保持されるようになつている。可動部材25
の前端には、水平方向に張り出し、その先端下面
を斜状のカム面27aとした係合突片27と、側
方に延び、前記検出レバー55の下端に後方より
接離可能に対向する可動ドツク28とが一体形成
され、又、可動部材25の後端には前記跨設部2
4の後面に形成された受け部24bと協働して釦
Bを挾持する受け部29が形成されている。
A movable member 25 passing through a guide passage 24a is supported on the rear frame body 23 so as to be movable back and forth.
A plate-shaped locking spring 26 provided on the movable member 25 is engaged with its protrusion so that the movable member 25 is elastically held at an arbitrary position. Movable member 25
At the front end thereof, there is an engaging protrusion 27 which protrudes horizontally and has a slanted cam surface 27a on the lower surface of its tip; A dock 28 is integrally formed with the movable member 25, and the straddling portion 2 is provided at the rear end of the movable member 25.
A receiving part 29 is formed to hold the button B in cooperation with a receiving part 24b formed on the rear surface of the button B.

次に、このように構成された布押え装置の作用
を説明する。さて、第1図は、ゼンマイばね10
の付勢力により、前部枠体9が押え部体3の前端
に係合する状態を示し、この状態において固定ド
ツグ8が検出レバー55にその前方から当接し、
その検出レバーを後方へ回動させている。この状
態において、はとめ釦孔かがりを行うには、第2
図に示すように、そのはとめ孔を必要とする釦B
を可動部材25上に載置して、その可動部材25
を移動させてその受け部29と後部枠体23の受
け部24bとの間で釦Bを挾持する。それによ
り、可動ドツグ28及び係合突片27の位置が調
節設定される。
Next, the operation of the presser foot device configured as described above will be explained. Now, Figure 1 shows the mainspring spring 10
A state is shown in which the front frame body 9 engages with the front end of the presser body 3 due to the biasing force, and in this state, the fixed dog 8 abuts the detection lever 55 from the front,
The detection lever is rotated backwards. In this state, in order to sew the eyelet button holes,
Button B that requires its eyelet as shown in the figure
is placed on the movable member 25, and the movable member 25
is moved and the button B is held between the receiving part 29 and the receiving part 24b of the rear frame 23. Thereby, the positions of the movable dog 28 and the engaging protrusion 27 are adjusted and set.

一方、これと前後して、第6図に示すように押
え棒52を扛上させて押え装置1を上昇させる。
このようにすると、隔離板18が自重により下方
に回動されて押え部体3の下面が開放されるとと
もに、芯紐保持部材13が板ばね15の付勢力に
より回動されて、芯紐保持部13aが前方より目
視できるようにスリツト12から下方へ突出し、
その位置で保持される。次に、この状態におい
て、二つ折りにされた芯紐Sの中間折曲部Saを
芯紐保持部13aに掛止して、その両紐肢Sb,
Scを前部枠体9上の紐ガイド溝11,11に引
掛けて上方へ引き上げる。この操作により、芯紐
Sの両紐肢Sb,Scは押え部体3上の紐ガイド溝
16a,16aに必然的に嵌入される。その後、
加工布Cを隔離板18の下方に挿入し、位置決め
した後押え棒52を降下する。
On the other hand, before or after this, the presser bar 52 is lifted up to raise the presser device 1, as shown in FIG.
In this way, the separating plate 18 is rotated downward by its own weight to open the lower surface of the presser body 3, and the core string holding member 13 is rotated by the biasing force of the leaf spring 15 to hold the core string. The portion 13a protrudes downward from the slit 12 so as to be visible from the front,
It is held in that position. Next, in this state, the intermediate bent part Sa of the core string S folded in half is hooked to the core string holding part 13a, and both the string limbs Sb,
Hook the Sc into the string guide grooves 11, 11 on the front frame 9 and pull it upward. By this operation, both string limbs Sb, Sc of the core string S are inevitably fitted into the string guide grooves 16a, 16a on the presser body 3. after that,
The work cloth C is inserted below the separator 18, and the positioned presser bar 52 is lowered.

このようにすると、第4図及び第8図aに示す
ように、隔離板18が押え部体3の下面を覆うと
ともに、板ばね15の付勢力により芯紐保持部1
3aが隔離板18の上面に当設した状態に保持さ
れる。従つて、芯紐Sは芯紐保持部13aから外
れないように保持され、かつ両紐肢Sb,Scは針
貫通用開口5,20間を通つて隔離板18の両切
欠部21,22内を通過する。
In this way, as shown in FIGS. 4 and 8a, the separator plate 18 covers the lower surface of the presser member 3, and the urging force of the leaf spring 15 causes the core string holding member to
3a is held in contact with the upper surface of the separator plate 18. Therefore, the core string S is held so as not to come off from the core string holding part 13a, and both string limbs Sb and Sc pass between the needle penetration openings 5 and 20 into the two notches 21 and 22 of the separator 18. pass through.

このような準備作業が完了した後、孔かがり縫
を開始すると、第8図に示すように、針貫通用開
口5,20内において切欠部21側の紐肢Sbに
対して針53によるジグザグ縫が行われるととも
に、送り歯による後進布送りが行われて、加工布
C及び押え枠体4が押え部体3に対して相対的に
前方(第8図の右方)に送られ、一方の紐肢Sb
を縫込むように一側かがり縫目が形成される。そ
して、加工布C及び押え枠体4が前方へ移動され
るにつれて、芯紐Sが切欠部22及び一方の紐ガ
イド溝16aによつてガイドされながら押え枠体
4と隔離板18との間へ引出されて行く。
After completing such preparatory work, when overlock stitching is started, as shown in FIG. At the same time, backward cloth feeding is performed by the feed dog, and the workpiece cloth C and the presser frame body 4 are sent forward (to the right in FIG. 8) relative to the presser frame body 3, and one of the String limb Sb
A one side overcast seam is formed by sewing. As the work cloth C and the presser frame 4 are moved forward, the core string S is guided by the notch 22 and one of the string guide grooves 16a and moves between the presser frame 4 and the separator 18. being pulled out.

このようにして、一側かがり縫が進行し、押え
枠体4上の可動ドツグ28が検出レバー55の後
端に当接してその検出レバー55を前方へ回動さ
せることに関連して縫目データが切換えられ、第
8図bに示すように円弧状部の形成が開始され
る。これとほぼ同時に、可動部材25上の係合突
片27のカム面27aに芯紐保持部材13の係合
部13bが係合して、芯紐保持部材13が板ばね
15の付勢力に抗して回動され、芯紐保持部13
aによる芯紐Sの折曲部Saの保持が釈放される。
従つて、芯紐Sの折曲部Saが自由状態になり、
その芯紐Sの折曲部Saは、第9図から明らかな
ように、縫目データに従つて加工布に突き刺る針
53の先端テーパー部周面に接触することによつ
て移動され、円弧状部Jaの形成のための縫目の
配置に追従して円弧状になり、その縫目中に縫込
まれる。
In this way, one side overlocking progresses, and the movable dog 28 on the presser frame body 4 comes into contact with the rear end of the detection lever 55 and rotates the detection lever 55 forward. The data is switched and the formation of the arcuate portion is started as shown in FIG. 8b. At almost the same time, the engaging portion 13b of the core string holding member 13 engages with the cam surface 27a of the engaging protrusion 27 on the movable member 25, and the core string holding member 13 resists the urging force of the leaf spring 15. The core string holding part 13
The holding of the bent portion Sa of the core string S by a is released.
Therefore, the bent portion Sa of the core string S becomes free,
As is clear from FIG. 9, the bent portion Sa of the core string S is moved by contacting the circumferential surface of the tapered tip of the needle 53 that pierces the work cloth according to the stitch data, Following the arrangement of the stitches for forming the arcuate portion Ja, it becomes arcuate and is sewn into the stitches.

第8図cに示す円弧状部Jaの形成が終了する
と、第8図dに示すように他方の紐肢Scを縫込
むように他側かがり縫が行われる。このとき芯紐
Sの前記引出しは停止され、その芯紐Sは加工布
Cとともに後方に移動される。そして、加工布C
及び押え枠体4が孔かがり縫開始位置に戻ると、
固定ドツグ8が検出レバー55の前面に当接し、
これに基づいてさらに縫目データが切換えられ
て、第8図eに示すように、両紐肢Sb,Scを跨
ぐように閂止め縫が所定針数行われ、ミシンが停
止される。その後、押え棒52を上昇させて加工
布Cを押え装置1の下方より取出し、閂止め部
Jbから突出した部分の芯紐Sの紐肢Sb,Scを切
断除去し、釦孔を切開すれば、前記釦Bの大きさ
に適合するとともに、芯紐Sの折曲部Saが円弧
状端部に縫込まれたはとめ釦孔が完成される。
When the formation of the arcuate portion Ja shown in FIG. 8c is completed, overlock stitching is performed on the other side so as to sew in the other string limb Sc as shown in FIG. 8d. At this time, the drawing of the core string S is stopped, and the core string S is moved rearward together with the work cloth C. And processed cloth C
And when the presser frame body 4 returns to the overlocking starting position,
The fixed dog 8 comes into contact with the front surface of the detection lever 55,
Based on this, the stitch data is further switched, and as shown in FIG. 8e, a predetermined number of bartack stitches are performed so as to straddle both string limbs Sb and Sc, and the sewing machine is stopped. Thereafter, the presser bar 52 is raised, the work cloth C is taken out from below the presser device 1, and the bar-tacking portion is
By cutting and removing the string limbs Sb and Sc of the core string S protruding from Jb and cutting out the button hole, it will fit the size of the button B, and the bent portion Sa of the core string S will be at the arcuate end. The eyelet button hole sewn into the section is completed.

このように、孔かがり縫にともなつて芯紐Sを
その縫目J中に縫込むことができる。特にこの押
え装置1においては前記の説明から明らかなよう
に、縫目Jの円弧状端部Jaにも芯紐Sを自動的
に縫込むことができ、芯紐が縫目から抜けるおそ
れもない。
In this way, the core string S can be sewn into the stitch J during the oversewing. In particular, in this presser foot device 1, as is clear from the above description, the core string S can be automatically sewn into the arcuate end Ja of the seam J, and there is no fear that the core string will come off from the seam. .

又、特にこの装置においては、孔かがり縫時に
芯紐Sを掛止保持している芯紐保持部13aを覆
うようにした隔離板18を設けたので、加工布C
の表面の凹凸等によつて芯紐Sの掛止部が芯紐保
持部13aから外れることを完全に防止し得て、
孔かがり縫目Jの円弧状端部Jaの形成直前まで
確実に保持し得る。従つて、芯紐Sを、専用の芯
紐案内装置を有する工業用ミシンを使用する場合
と同様、孔かがり縫目Jの円弧状端部Jaを含む
全縫目中に確実かつ正確に縫込むことができる。
又、この押え装置においては、釦孔かがりの遂行
の際まず最初に形成される一側かがり縫目が配置
される側の紐肢Sbを案内する隔離板18上の切
欠部21が針貫通用開口20と連絡されているの
で、一側かがり縫目の形成に伴なうその紐肢Sb
の縫込みを支障なく行うことができる。何故なら
ば、その切欠部21と針貫通用開口20とが連絡
されていない場合には、前記紐肢Sbが隔離板1
8の先端部上面を通つて針貫通用開口20に至
り、そこで一側かがり縫目により縫込まれ、その
縫込まれた部分は加工布Cと押え枠体4の移動に
ともなつて隔離板18の下面側に入り込むことに
なり、それ故に、紐肢Sbの縫はじめ部より解放
側の部分がその縫はじめ部と針貫通用開口20と
の間の隔離板18の下面側に一側かがり縫の進行
に伴つて折曲されて入り込み、送り歯による加工
布の移送に無駄な抵抗を生じるばかりか、その後
の他側かがり縫の遂行時にその折曲部が遊動して
他側かがり縫目中に誤つて縫込まれる虞れが生じ
るからである。
In addition, especially in this device, since a separator plate 18 is provided to cover the core string holding portion 13a that retains the core string S during hole sewing, the workpiece fabric C
It is possible to completely prevent the hooking part of the core string S from coming off from the core string holding part 13a due to unevenness on the surface of the core string S,
It is possible to reliably hold the hole stitch J until just before the arcuate end portion Ja is formed. Therefore, the core string S can be reliably and accurately sewn into all the stitches including the arcuate end Ja of the overlock stitch J, as in the case of using an industrial sewing machine having a dedicated core string guide device. be able to.
In addition, in this presser foot device, the notch 21 on the separator plate 18 that guides the string limb Sb on the side where the one side overlock stitch that is formed first when performing buttonhole overlocking is arranged is used for needle penetration. Since it is connected to the opening 20, the string limb Sb accompanying the formation of one side overcast seam
can be sewn in without any trouble. This is because if the notch 21 and the needle penetration opening 20 are not in communication, the string limb Sb
8 to the needle penetration opening 20, where it is sewn in with a one-side overlock stitch, and as the work cloth C and the presser frame 4 move, the sewn-in part is separated from the separator plate. Therefore, the part of the string limb Sb on the release side from the sewing start part is hooked on one side to the lower surface side of the separator plate 18 between the sewing start part and the needle penetration opening 20. As sewing progresses, the folded portion not only creates unnecessary resistance to the transfer of the work cloth by the feed dog, but also causes the bent portion to move loosely when overlocking on the other side is performed, resulting in the overlocking stitch on the other side. This is because there is a risk that it may be accidentally sewn inside.

なお、前記実施例では芯紐入りのはとめ孔かが
りについて説明したが、この押え装置1は第10
図a〜cに示すように、芯紐入りのねむり孔かが
りの形成にも適用し得、これらいずれの場合にお
いても縫目反転部Haにおいて芯紐Sを縫込むこ
とができる。
In addition, in the above-described embodiment, the eyelet hole stitching with a core cord was explained, but this presser device 1
As shown in Figures a to c, the present invention can also be applied to the formation of sleep hole stitches containing a core string, and in any of these cases, the core string S can be sewn in at the seam reversal portion Ha.

なお、この押え装置は芯紐を入れない通常の釦
孔かがりの遂行にも、従来の押え装置と同様に使
用し得ることは明白である。
It is clear that this presser device can also be used in the same way as conventional presser devices to perform normal buttonhole stitching without inserting a core string.

さらに、この発明は次のような態様で具体化し
ても発明の趣旨を逸脱するものではない。
Furthermore, this invention may be embodied in the following manner without departing from the spirit of the invention.

(イ) 前記実施例では芯紐保持部材13を針貫通用
開口5の後方に配置したが、例えば実開昭51−
38550号に開示された押え装置の如き構成に適
合させるべく前方に配置すること。このように
構成した場合には、芯紐の両紐肢は芯紐保持部
材の後方の針貫通用開口を通つて後方に延びる
ことになるので、孔かがり縫にともなう加工布
の布送りを前記実施例とは逆に前半において後
方に送り、後半は前方に送ることになる。
(a) In the above embodiment, the core string holding member 13 was arranged behind the needle penetration opening 5, but for example,
Forward placement to accommodate configurations such as the hold-down device disclosed in No. 38550. In this case, both cord limbs of the core string extend rearward through the needle penetration opening at the rear of the core string holding member, so that the feed of the workpiece cloth during oversewing is controlled as described above. Contrary to the embodiment, the first half is sent backward, and the second half is sent forward.

(ロ) 芯紐保持部材13を固定のものにすること。
このように構成した場合には、芯紐に係合して
その芯紐を芯紐保持部材から強制的に釈放させ
る釈放部材を押え部体3に設け、縫目反転部に
おいて前記釈放部材を釈放作動させる作動部材
を押え枠体4に設ける必要がある。
(b) The core string holding member 13 should be fixed.
In this case, the presser body 3 is provided with a release member that engages with the core string and forcibly releases the core string from the core string holding member, and the release member is released at the seam reversal portion. It is necessary to provide the presser frame body 4 with an actuation member for actuation.

(ハ) 芯紐保持部材13による芯紐保持を前記実施
例と同様ばね力の作用下において行い、芯紐を
釈放するときにはそのばね力の作用を解除し
て、芯紐保持部材が自重により釈放位置に移動
するように構成すること。
(c) The core string holding member 13 holds the core string under the action of a spring force as in the previous embodiment, and when releasing the core string, the action of the spring force is released and the core string holding member is released by its own weight. Configuring to move to a position.

発明の効果 以上実施例で例示したように、この発明はミシ
ンの押え棒に取付けられる押え部体に押え枠体を
相対移動可能に装着し、前記押え枠体にはその押
え枠体の針貫通用開口の近傍において芯紐の折曲
部を保持する芯紐保持部材を設け、さらに、押え
枠体の移動に関連して芯紐を芯紐保持部材から釈
放させる釈放手段を設けたことにより、芯紐入り
釦孔かがりの遂行の際特別な芯糸案内装置をミシ
ンに組み付けることなく、縫目反転部においても
芯糸を自動的に縫込み得、それ故に、従来家庭用
ミシンにおいては不可能とされていた芯紐入りの
はとめ釦かがりを形成し得る優れた効果を発揮す
る。
Effects of the Invention As exemplified in the embodiments above, the present invention includes a presser frame attached to a presser bar of a sewing machine so as to be relatively movable, and a needle of the presser frame inserted into the presser frame. By providing a core string holding member for holding the bent portion of the core string near the opening for use, and further providing a release means for releasing the core string from the core string holding member in conjunction with movement of the presser frame, When performing buttonhole stitching with core string, the core thread can be sewn automatically even at the seam reversal section without installing a special core thread guide device to the sewing machine, which is therefore impossible with conventional home sewing machines. It has an excellent effect of forming eyelet buttons with a core cord, which was considered to be the same.

さらに、この発明は前記芯紐保持部が加工布に
直接係合するのを阻止する隔離板と、芯紐保持部
が隔離板と係合するように芯紐保持部材を付勢す
るばね手段とを設けたことにより、芯紐を所定時
期まで確実に保持して、完成される釦孔の一方の
端部の形成開始直前においてのみ芯紐が釈放され
るので、所望長さの釦孔かがり縫目中へ芯紐を確
実かつ正確に縫込み得て、きわめて優れた効果を
発揮する。
Further, the present invention includes a separator that prevents the core string holder from directly engaging the work cloth, and a spring means that biases the core string holder so that the core string holder engages with the separator. By providing this, the core string is held securely until a predetermined period of time, and the core string is released only just before the formation of one end of the finished buttonhole begins, so that the desired length of buttonhole overlock can be sewn. The core string can be sewn into the eye reliably and accurately, providing extremely excellent effects.

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

第1図〜第8図はこの発明を具体化した布押え
装置を示すものであつて、第1図はミシンへの取
付状態を示す斜視図、第2図は押え装置の平面
図、第3図は同じく底面図、第4図は第2図の4
−4線断面図、第5図は押え装置芯紐保持部近傍
を示す斜視図、第6図は押え棒上昇時における押
え装置の先端部の断面図、第7図は芯紐釈放時に
おける第4図対応断面図、第8図a〜eは釦孔か
がりの形成過程を示す要部平面図、第9図は芯紐
が移動される状態を示す簡略図、第10図a〜c
はそれぞれ異なるねむり孔かがり縫目に芯紐を縫
込んだ状態を示す平面図、第11図は従来の押え
装置の平面図、第12図はその押え装置を使用し
て芯紐入り釦孔かがりを形成する状態を示す平面
図、第13図ははとめ孔かがりの平面図である。 押え装置……1、押え部体……3、押え枠体…
…4、針貫通用開口……5、針貫通用長孔……
6、芯紐保持部材……13、芯紐保持部……13
a、係合突片……27、板ばね……15、隔離板
……18、加工布……C、芯紐……S、折曲部…
…Sa、孔かがり縫目……H,J。
1 to 8 show a presser foot device embodying the present invention, in which FIG. 1 is a perspective view showing how it is attached to a sewing machine, FIG. 2 is a plan view of the presser foot device, and FIG. The figure is also a bottom view, and Figure 4 is 4 in Figure 2.
-4 line sectional view, FIG. 5 is a perspective view showing the vicinity of the core string holding part of the presser device, FIG. 6 is a sectional view of the tip of the presser device when the presser bar is raised, and FIG. Fig. 4 is a corresponding sectional view, Fig. 8 a to e is a plan view of the main part showing the process of forming the buttonhole, Fig. 9 is a simplified diagram showing the state in which the core string is moved, and Fig. 10 a to c
Figure 11 is a plan view of a conventional presser device, and Figure 12 is a button hole stitcher with a core string sewn using the presser device. FIG. 13 is a plan view showing the state of forming the eyelet hole. Presser device...1, Presser body...3, Presser frame body...
...4. Opening for needle penetration...5. Long hole for needle penetration...
6, Core string holding member...13, Core string holding part...13
a, Engaging protrusion...27, Leaf spring...15, Separating plate...18, Processed cloth...C, Core string...S, Bent part...
...Sa, hole stitching...H, J.

Claims (1)

【特許請求の範囲】 1 針貫通用開口5を有し、ミシンの押え棒52
に取付可能な押え部体3と、 針貫通用長孔6を有し、前記押え部体3に対し
て相対的に移動可能に装着された押え枠体4と を備え、その押え枠体4が加工布Cの移送に伴つ
て、その加工布Cとともに前記押え部体3に対し
て相対的に移動される釦孔かがり用布押え装置に
おいて、 前記押え部体3に移動可能に支持され、二つ折
りにされた芯紐Sの折曲部Saを前記針貫通用開
口5の近傍において釈放可能に保持する芯紐保持
部材13と、 前記押え枠体4上に位置調節可能に支持された
係合部材27を有し、その係合部材27が押え枠
体4の移動に関連して前記芯紐部材13に係合す
ることにより、その芯紐保持部材13に芯紐釈放
移動をさせる釈放手段27等と を設け、 釈放された芯紐Sの折曲部Saが、完成される
釦孔の一方の端部における縫目H,J中に縫込ま
れるようにしたことを特徴とする芯紐入り釦孔か
がり用布押え装置。 2 前記芯紐保持部材13が前記押え部体3に回
動可能に支持され、ばね力の作用下においてその
押え部体3の下方に突出する一端部13aにて芯
紐Sの折曲部Saを保持しており、前記釈放手段
27等がそのばね力の作用に抗してその芯紐保持
部材13を回動させることにより芯紐Sが釈放さ
れる特許請求の範囲第1項に記載の芯紐入り釦孔
かがり用布押え装置。 3 針貫通用開口5を有し、ミシンの押え棒52
に取付けられる押え部体3と、 針貫通用長孔6を有し、前記押え部体3に対し
て相対的に移動可能に装着された押え枠体4と を備え、その押え枠体4が加工布Cの移送に伴つ
て、その加工布Cとともに前記押え部体3に対し
て相対的に移動される釦孔かがり用布押え装置に
おいて、 前記押え部体3に移動可能に支持され、二つ折
りにされた芯紐Sの折曲部Saを押え部体3の下
方で、かつ針貫通用開口5の近傍にて釈放可能に
保持する芯紐保持部材13と、 前記押え部体3に装着され、芯紐保持部材13
の芯紐保持部13aに下方より相対位置し、そ芯
紐保持部13aが加工布Cに直接係合するのを阻
止する隔離板18と、 前記芯紐保持部13aがその隔離板18に係合
するように芯紐保持部材13を付勢するばね手段
15と、 前記押え枠体4の移動に関連して前記芯紐保持
部材13から芯紐Sを釈放するために、前記押え
枠体4上に位置調節可能に支持され、前記ばね手
段15の作用に抗して芯紐保持部材13を移動さ
せる釈放手段27等と を設け、 釈放された芯紐Sの折曲部Saが、完成される
釦孔の一方の端部における縫目H,J中に縫込ま
れるようにしたことを特徴とする芯紐入り釦孔か
がり用布押え装置。 4 前記隔離板18は押え部体3に回動可能に支
持されており、前記押え棒52の上昇時におい
て、前記ばね手段15により付勢されている芯紐
保持部材13の芯紐保持部13aが押え枠体4よ
り下方へ突出するのを許容し、かつその芯紐保持
部13aが作業者により前方から目視できるよう
に、前記隔離板18がその芯紐保持部13aから
離脱回動する特許請求の範囲第3項に記載の芯紐
入り釦孔かがり用布押え装置。 5 前記隔離板18は前記押え枠体4の針貫通用
長孔6内に位置するように押え部体3に支持さ
れ、その押え部体3の前記針貫通用長孔6に臨む
下面を実質的に覆つており、かつ前記押え部体3
の針貫通用開口にほぼ合致する開口20が形成さ
れている特許請求の範囲第3項又は第4項に記載
の芯紐入り釦孔かがり用布押え装置。 6 前記離隔板18の一端部には、前記芯紐保持
部材13に保持された芯紐Sの折曲部Saに連な
る両紐肢Sb,Scをそれぞれ案内する一対の切欠
部21,22が形成されており、釦孔かがりの遂
行の際、まず最初に形成される一側かがり縫目が
配置される側の紐肢Sbを案内する切欠部21は
前記隔離板18の開口20に連絡している特許請
求の範囲第5項に記載の芯紐入り釦孔かがり用布
押え装置。 7 前記釈放手段は、押え枠体4上に位置調節可
能に支持された係合部材27からなり、その係合
部材27は押え枠体4上の固定部材23とにより
釦Bを挟持し得、その挟持された釦の大きさに応
じてその位置を変更可能である特許請求の範囲第
3項に記載の芯紐入り釦孔かがり用布押え装置。
[Claims] 1. A presser bar 52 of a sewing machine having an opening 5 for passing through the needle.
a presser foot body 3 that can be attached to the presser foot body 3; and a presser frame body 4 that has a long hole 6 for needle penetration and is mounted movably relative to the presser foot body 3; is movably supported by the presser foot body 3 in the presser foot device for buttonhole stitching, which is moved relative to the presser foot body 3 together with the work cloth C as the work cloth C is transferred; A core cord holding member 13 that releasably holds the bent portion Sa of the core cord S folded in half in the vicinity of the needle penetration opening 5, and a locking member supported on the presser frame 4 so that its position can be adjusted. A release means that has a mating member 27 and causes the core strap holding member 13 to move to release the core strap by engaging the core strap member 13 in conjunction with the movement of the presser frame body 4. 27, etc., and the bent part Sa of the released core string S is sewn into the seams H and J at one end of the buttonhole to be completed. Presser foot device for buttonhole overlocking. 2 The core string holding member 13 is rotatably supported by the presser body 3, and the bent portion Sa of the core cord S is formed at one end 13a that projects downward from the presser body 3 under the action of a spring force. , and the core string S is released by the releasing means 27 etc. rotating the core string holding member 13 against the action of the spring force. Presser foot device for buttonhole overlocking with core cord. 3 has an opening 5 for needle penetration, and has a presser bar 52 of the sewing machine.
The presser frame body 4 has a long hole 6 for needle penetration and is mounted movably relative to the presser frame body 3, and the presser frame body 4 has a In the presser foot device for buttonhole stitching, which is moved relative to the presser foot body 3 together with the work cloth C as the work cloth C is transferred, the presser foot device is movably supported by the presser foot body 3, A core string holding member 13 that releasably holds the folded portion Sa of the folded core string S below the presser body 3 and in the vicinity of the needle penetration opening 5, and is attached to the presser foot body 3. and the core string holding member 13
a separator 18 located relative to the core string holding part 13a from below and preventing the core string holding part 13a from directly engaging with the work cloth C; a spring means 15 for urging the core string holding member 13 so as to fit together; and a spring means 15 for urging the core string holding member 13 to fit together; A release means 27, etc., which is supported in an adjustable position on the top and moves the core string holding member 13 against the action of the spring means 15, is provided, and the bent portion Sa of the released core string S is completed. 1. A cloth presser foot for buttonhole overlocking with a core cord, characterized in that the presser foot is sewn into stitches H and J at one end of a buttonhole. 4 The separator plate 18 is rotatably supported by the presser body 3, and when the presser bar 52 is raised, the core string holding portion 13a of the core string holding member 13 is biased by the spring means 15. In this patent, the separator plate 18 is rotated away from the core string holding portion 13a so as to allow the separator to protrude downward from the presser frame 4, and to allow the operator to visually observe the core string holding portion 13a from the front. A presser foot device for buttonhole overlocking with a core cord according to claim 3. 5 The separator plate 18 is supported by the presser body 3 so as to be located within the long hole 6 for needle penetration in the presser frame 4, and substantially covers the lower surface of the presser body 3 facing the long hole 6 for needle penetration. and the presser body 3
The presser foot device for buttonhole overlocking with a core cord according to claim 3 or 4, wherein the opening 20 is formed to substantially match the opening for passing through the needle. 6 A pair of notches 21 and 22 are formed at one end of the separation plate 18 to guide both string limbs Sb and Sc connected to the bent portion Sa of the core string S held by the core string holding member 13, respectively. When performing buttonhole stitching, the notch 21 that guides the string limb Sb on the side where the one side stitch that is formed first is connected to the opening 20 of the separator plate 18. A presser foot device for buttonhole overlocking with a core string as set forth in claim 5. 7. The release means includes an engaging member 27 supported on the presser frame 4 so that its position can be adjusted, and the engaging member 27 can clamp the button B with the fixing member 23 on the presser frame 4, The presser foot device for button hole stitching with a core cord according to claim 3, wherein the position of the presser foot can be changed depending on the size of the button held.
JP5010880A 1980-04-15 1980-04-15 Cloth hold-down device for buttonholing containing core string Granted JPS56145889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5010880A JPS56145889A (en) 1980-04-15 1980-04-15 Cloth hold-down device for buttonholing containing core string

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5010880A JPS56145889A (en) 1980-04-15 1980-04-15 Cloth hold-down device for buttonholing containing core string

Publications (2)

Publication Number Publication Date
JPS56145889A JPS56145889A (en) 1981-11-12
JPS6359713B2 true JPS6359713B2 (en) 1988-11-21

Family

ID=12849882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5010880A Granted JPS56145889A (en) 1980-04-15 1980-04-15 Cloth hold-down device for buttonholing containing core string

Country Status (1)

Country Link
JP (1) JPS56145889A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62120971U (en) * 1986-01-27 1987-07-31
JP5074756B2 (en) * 2006-12-18 2012-11-14 蛇の目ミシン工業株式会社 Buttonhole sewing method and apparatus
JP6288634B2 (en) * 2013-09-30 2018-03-07 蛇の目ミシン工業株式会社 Buttonhole presser and sewing machine equipped with the buttonhole presser

Also Published As

Publication number Publication date
JPS56145889A (en) 1981-11-12

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