JPH0327583Y2 - - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、例えば工業用ミシンのヘツドの一
側を被うのに適するミシンの面板取付構造に関す
る。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a sewing machine face plate mounting structure suitable for covering one side of the head of an industrial sewing machine, for example.

〔従来の技術〕[Conventional technology]

従来、例えば工業用ミシンにおいては、縫製品
を移動送りするために昇降自在に且つ揺動自在に
ミシンヘツドの一側に取付けられる送り足の駆動
を行うための多節のリンク機構の交換作業を容易
にするためと、リンク機構の移動ストロークの調
整を容易に行うために、ミシンヘツドの一側に面
板を着脱自在に取付け、部品を被つていた。 Conventionally, for example, in industrial sewing machines, it is easy to replace the multi-section link mechanism for driving the feed foot, which is attached to one side of the sewing machine head so that it can move up and down and swing freely in order to move and feed the sewn product. In order to easily adjust the movement stroke of the link mechanism, a face plate was removably attached to one side of the sewing machine head and covered with parts.

この面板の取付構造に関する従来技術の一例を
挙げると、例えば従来第４図および第５図に示す
ものがあつた。 An example of the prior art related to this face plate mounting structure is shown in FIGS. 4 and 5, for example.

すなわち、ハンドバツグ、財布等の皮製品等の
縫製品ａを縫針６を上下動させて縫製する毎に、
縫製品ａを押え込んで移動送りするためにミシン
ヘツド１の一側に取付けられる送り足５は、モー
タの駆動力を受動して回動する上軸７の回転運動
をミシンヘツド１の外側に配設したクランク機構
９により揺動運動に変換される。そしてこのクラ
ンク機構９による揺動運動を連続した昇降運動お
よび前後方向への揺動運動に変換させ、駆動する
手段として、クランク機構９のクランク軸９ａに
上端が固着された受動リンク１１と、該受動リン
ク１１に一端が軸１２により枢着され、しかも他
端が軸１３により後記Ｌ形リンク１９の上端に枢
着された上下めがねリンク１４と、上方の一端が
軸１３により前記上下めがねリンク１４の一端に
枢着されて押棒１６を嵌入した押棒取付部品１７
に軸１８を用いて枢着された略Ｌ形のＬ形リンク
１９と、このＬ形リンク１９の中間の隅角部１９
ａに上端が軸２０により枢着され、数個のネジ２
１を用いて送り足５が下端にネジ止めされること
により昇降自在となり且つ前後方向に揺動可能に
取付けられた支持部材としてのＬ板ロツド４とか
ら成る各構成部品によりリンク機構１０を構成し
ている。そしてこのリンク機構１０の一部を構成
する前記Ｌ板ロツド４に常時、下方へばね附勢す
るようなばね材としてのコイルばね２３が捲回さ
れ上端には調整ねじ２４が螺挿された上送りばね
芯棒２２と、該上送りばね芯棒２２の上方部をミ
シンヘツド１に取付けるために左右の端部がネジ
止めされてミシンヘツド１の軸長方向に長い取付
片２５′ａを突設した取付部品２５′と、該上送り
ばね芯棒２２の下端を支承するようにミシンヘツ
ド１の軸長方向に折曲された略Ｌ字形の取付部品
５０とを前記ミシンヘツド１に着脱自在にネジ止
めされる面板２′により被冠した構造である。 That is, each time sewing product a such as a leather product such as a handbag or wallet is sewn by moving the sewing needle 6 up and down,
The feed foot 5, which is attached to one side of the sewing machine head 1 in order to press and move the sewn product a, is arranged on the outside of the sewing machine head 1 so that the rotational movement of the upper shaft 7, which rotates by receiving the driving force of the motor, is arranged on the outside of the sewing machine head 1. This is converted into a rocking motion by the crank mechanism 9. A passive link 11 whose upper end is fixed to the crankshaft 9a of the crank mechanism 9 is used as a means for converting the rocking motion by the crank mechanism 9 into a continuous vertical movement and a rocking motion in the front-rear direction. An upper and lower spectacle link 14 has one end pivotally connected to the passive link 11 by a shaft 12 and the other end pivotally connected to the upper end of an L-shaped link 19 described later by a shaft 13; a push rod attachment part 17 which is pivotally connected to one end and into which the push rod 16 is fitted;
A substantially L-shaped L-shaped link 19 pivotally connected using a shaft 18 and an intermediate corner portion 19 of this L-shaped link 19
The upper end is pivotally connected to a by a shaft 20, and several screws 2
The link mechanism 10 is constituted by each component consisting of an L plate rod 4 as a support member which is movable up and down by screwing the feed leg 5 to the lower end using the L plate rod 4 and is attached so as to be swingable in the front and back direction. are doing. A coil spring 23 is wound around the L-plate rod 4, which constitutes a part of the link mechanism 10, and an adjustment screw 24 is screwed into the upper end. In order to attach the feed spring core rod 22 and the upper part of the upper feed spring core rod 22 to the sewing machine head 1, a long mounting piece 25'a is provided protruding in the axial direction of the sewing machine head 1, with the left and right ends screwed. A mounting part 25' and a substantially L-shaped mounting part 50 bent in the axial direction of the sewing machine head 1 so as to support the lower end of the upper feed spring core rod 22 are removably screwed to the sewing machine head 1. This structure is covered by a face plate 2'.

〔考案が解決しようとする課題〕[The problem that the idea aims to solve]

しかしながら上記リンク構造を有するミシンに
おいては、上送りばね芯棒２２の下端を支承する
ための取付部品５０の取付受片５０ａはミシンヘ
ツド１の軸長方向に突出するように形成されてい
るので、これ等のリンク等の各種部品を内部に収
容するための面板２′は収容空間を多く必要とし、
その厚さ′が必然的に厚く形成されていた。 However, in the sewing machine having the above link structure, the mounting piece 50a of the mounting part 50 for supporting the lower end of the upper feed spring core rod 22 is formed to protrude in the axial direction of the sewing machine head 1; The face plate 2' for accommodating various parts such as links etc. requires a large amount of accommodating space;
The thickness ′ was inevitably formed to be thick.

従つて殊にハンドバツグ、財布等の皮製品や曲
面加工を必要としたり、布材等に比して柔軟性に
欠ける材料にて形成された縫製品ａの最終縫製段
階において、マチ等を縫製する場合に、縫製品ａ
の前端部が第４図に示す如く面板２′に衝き当る
ので、送り歯や送り足５等により移送される縫製
品ａが引掛かつて移動送りを円滑に行うための妨
げの一因になり、作業能率が低下するとともに幅
の一様なマタを均等な仕上りで縫製できないとい
う原因になつていた。 Therefore, especially in the final sewing stage of leather products such as handbags and wallets, which require curved surface processing, or are made of materials that are less flexible than cloth materials, gussets, etc. are sewn. In case, sewn products a
As the front end of the sewing machine collides with the face plate 2' as shown in FIG. 4, the sewn product a transported by the feed dog, feed foot 5, etc. gets caught and becomes one of the factors that hinders smooth movement and feeding. This resulted in a decrease in work efficiency and the inability to sew fabrics of uniform width with an even finish.

本考案は上述の如き点に鑑みてなされたもので
あり、面板の厚みを極力、薄く形成して縫製品が
縫製時に引掛かる等の不都合を解消して作業能率
を向上させるとともに均等な仕上りのマチを縫製
するようになしたミシンの面板取付構造を提供す
るのにある。 The present invention has been developed in view of the above-mentioned points, and the thickness of the face plate is made as thin as possible to eliminate inconveniences such as sewn products getting caught during sewing, thereby improving work efficiency and ensuring uniform finishing. To provide a structure for mounting a face plate of a sewing machine for sewing a gusset.

〔課題を解決するための手段〕[Means to solve the problem]

そこで本考案は、モータの駆動力により回転す
る上軸の回転運動を受動する多節のリンク機構の
一部品を構成し、且つ送り足を下端に装着し昇降
自在になるとともに揺動自在に連続して駆動する
支持部材と、該支持部材を下方にばね附勢するコ
イルばねが捲回された上送りばね芯棒とを覆うよ
うにミシンのヘツドに着脱自在に取付けられる面
板取付構造にして、前記支持部材に垂直な取付面
を有する取付部品を枢着するとともに該取付部品
の外側にミシンヘツドの軸長方形に直交するよう
に突設した取付受片により前記上送りばね芯棒を
支承しミシンヘツドに取付けるという手段を採用
した。 Therefore, the present invention consists of a part of a multi-joint link mechanism that receives the rotational movement of an upper shaft rotated by the driving force of a motor, and a feed leg is attached to the lower end so that it can be raised and lowered as well as continuously swingable. and a face plate mounting structure that can be detachably attached to the head of the sewing machine so as to cover a support member that is driven by the sewing machine, and an upper feed spring core rod that is wound with a coil spring that biases the support member downward. A mounting part having a perpendicular mounting surface is pivotally mounted to the support member, and the upper feed spring core rod is supported by a mounting piece protruding from the outside of the mounting part so as to be perpendicular to the axis rectangle of the sewing machine head. We adopted the method of mounting.

〔作 用〕[Effect]

上軸からの回転運動を受動して駆動する多節の
リンク機構の一部品を構成する支持部材としての
Ｌ板ロツドを垂直な取付面を有する断面略コ字状
の取付部品を用いて枢着する。 The L-plate rod, which serves as a support member that constitutes a component of a multi-section link mechanism that passively drives rotational motion from the upper shaft, is pivoted using a mounting part with a substantially U-shaped cross section and a vertical mounting surface. do.

そしてこの取付部品の外側下方にミシンヘツド
の軸長方向と直交する方向に突設した水平な取付
受片により上送りばね芯棒の下端を支承して取付
けることができるので上送りばね芯棒を組付ける
場合の薄型設計が可能となる。 The lower end of the upper feed spring core can be supported and mounted using a horizontal mounting piece that protrudes in a direction perpendicular to the axial direction of the sewing machine head on the lower outside of this mounting part, so the upper feed spring core can be assembled. When attached, a thin design is possible.

従つて送り足を昇降自在に且つ揺動自在に駆動
させるためのリンク機構やその可動ストロークを
調整するための調整機構やこの調整機構を構成す
るリンク等を被うためにミシンヘツドに着脱自在
に取付けるための面板の厚さを従来よりも薄く形
成できる。 Therefore, it is removably attached to the sewing machine head to cover the link mechanism for driving the feed foot so that it can move up and down and swing freely, the adjustment mechanism for adjusting its movable stroke, and the links that make up this adjustment mechanism. The thickness of the face plate can be made thinner than before.

〔実施例〕〔Example〕

以下本考案の一実施例を第１図乃至第３図に従
つて説明する。 An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

なお、本実施例において第４図乃至第５図に示
す部分と同一部分は同一符号で示す。 In this embodiment, the same parts as those shown in FIGS. 4 and 5 are designated by the same reference numerals.

１はミシンヘツド、２は該ミシンヘツド１の一
側に取付用の数個のネジ３により着脱自在に取付
けられる略箱形の面板であり、この面板２は厚さ
程度の厚みをもつて薄く形成されている。 1 is a sewing machine head; 2 is a substantially box-shaped face plate that is detachably attached to one side of the sewing machine head 1 with several mounting screws 3; ing.

４はミシンヘツド１の一側に連続して昇降自在
であり且つ前後方向に揺動可能となるように設け
られる支持部材としてのＬ板ロツドであり、この
Ｌ板ロツド４の上半部は外側に膨んだ段差部４ａ
が形成されている。 Reference numeral 4 designates an L-plate rod as a support member that is provided on one side of the sewing machine head 1 so as to be able to rise and fall continuously and to swing back and forth.The upper half of this L-plate rod 4 extends outward. Swollen step portion 4a
is formed.

５は該Ｌ板ロツド４の下端に取付高さを調整自
在にして取付けられる送り足であり、この送り足
５は例えばハンドバツグ、財布等の皮製品の如き
縫製品ａを縫製する時に、縫針６が昇降するのと
同期して昇降自在に且つ前後方向に連続して揺動
運動することによつて移動させる。 Reference numeral 5 denotes a feed foot that is attached to the lower end of the L plate rod 4 so that its installation height can be freely adjusted. It is moved by being able to move up and down freely in synchronization with the up and down movements of the robot, and by continuously swinging motion in the front and back direction.

７はモータ（図示せず）の駆動力を受動して回
転するように、ミシンヘツド１内に回転自在に設
けられた上軸であり、この上軸７の回転運動は上
軸７に一端のカム部８ａが挿入され、他端がクラ
ンク機構９に連係されたカムロツド８の回転往復
移動により、前記クランク機構９を介して揺動運
動に変換される。 Reference numeral 7 denotes an upper shaft which is rotatably provided in the sewing machine head 1 so as to be rotated by receiving the driving force of a motor (not shown). The portion 8a is inserted, and the rotation and reciprocation of the cam rod 8, whose other end is linked to the crank mechanism 9, is converted into a rocking motion via the crank mechanism 9.

１０はクランク機構９のクランク軸９ａからの
揺動運動を前記Ｌ板ロツド４に伝達して該Ｌ板ロ
ツド４を昇降自在に且つ前後方向に揺動自在にな
すようにクランク機構９の後段に連係されたリン
ク機構である。 Reference numeral 10 denotes a rear part of the crank mechanism 9 so as to transmit the rocking motion from the crankshaft 9a of the crank mechanism 9 to the L plate rod 4 so that the L plate rod 4 can be moved up and down and rocked in the front and rear directions. It is a linked linkage mechanism.

このリンク機構１０は、前記クランク機構９の
クランク軸９ａに上端が固着される受動リンク１
１と、該受動リンク１１に一端が軸１２により枢
着され、また他端が軸１３により後記Ｌ形リンク
１９の上端に枢着された上下めがねリンク１４
と、上方の一端が前記軸１３により前記上下めが
ねリンク１４の一端に枢着され、しかもコイルば
ね１５を捲回した押棒１６が嵌着された押棒取付
部品１７に軸１８により他端が枢着されて揺動自
在となる略Ｌ形のＬ形リンク１９と、このＬ形リ
ンク１９の略中間の隅角部１９ａに上端が軸２０
により上端が枢着され、数個のネジ２１を用いて
送り足５が下端にネジ止めされることにより昇降
自在で且つ前後方向に揺動運動可能に取付けられ
た支持部材としての前記Ｌ板ロツド４とから形成
される。 This link mechanism 10 includes a passive link 1 whose upper end is fixed to the crankshaft 9a of the crank mechanism 9.
1, and an upper and lower glasses link 14 whose one end is pivotally connected to the passive link 11 by a shaft 12, and the other end is pivotally connected to the upper end of an L-shaped link 19 described later by a shaft 13.
One end of the upper end is pivotally connected to one end of the upper and lower eyeglass link 14 by the shaft 13, and the other end is pivotally connected by the shaft 18 to a push rod attachment part 17 into which a push rod 16 having a coiled spring 15 is fitted. An L-shaped link 19 that is approximately L-shaped and can swing freely, and an upper end of which is connected to a shaft 20 at a corner 19a approximately in the middle of this L-shaped link 19.
The L-plate rod as a support member is pivotally mounted at the upper end thereof, and the feed leg 5 is screwed to the lower end using several screws 21, so that it can be raised and lowered and swingable in the front-rear direction. 4.

２２は上送りばね芯棒であり、この上送りばね
芯棒２２は前記リンク機構１０の前記Ｌ板ロツド
４を常時、下方へばね附勢するようなばね材とし
てのコイルばね２３が外周に捲回され、またコイ
ルばね２３の上端には螺入するか、または螺退す
るかすることによりコイルばね２３のばね力を加
減して送り足５の上下方向の可動ストロークを調
整するための調整ネジ２４が螺挿されている。 Reference numeral 22 denotes an upper feed spring core rod, and this upper feed spring core rod 22 has a coil spring 23 wound around its outer periphery as a spring material that constantly biases the L plate rod 4 of the link mechanism 10 downward. An adjustment screw is screwed into the upper end of the coil spring 23 and screwed back to adjust the spring force of the coil spring 23 to adjust the vertical movable stroke of the feed foot 5. 24 is screwed in.

２５は前記上送りばね芯棒２２をミシンヘツド
１に取付けるための取付部品であり、この取付部
品２５は金属板にて形成されてミシンヘツド１の
軸長方向に向けて折曲した取付片２５ａ内に前記
上送りばね芯棒２２を挿入させて前記調整ネジ２
４に螺合されたナツト２６の締付けを受けた状態
で数個のネジ２７，２７によりミシンヘツド１に
上方部が固定される。 Reference numeral 25 denotes a mounting part for mounting the upper feed spring core rod 22 to the sewing machine head 1. This mounting part 25 is formed of a metal plate and is inserted into a mounting piece 25a bent in the axial direction of the sewing machine head 1. Insert the upper feed spring core rod 22 and tighten the adjustment screw 2.
The upper part is fixed to the sewing machine head 1 by several screws 27, 27 while being tightened by a nut 26 screwed into the sewing machine head 4.

２８はＬ形リンク１９の中間の隅角部１９ａ
と、Ｌ板ロツド４の上端を枢着するための回動支
点としての前記軸２０が挿入される垂直面を有す
る断面略コ字状の取付部品であり、この取付部品
２８の外側にはミシンヘツド１の軸長方向と直交
する方向に水平な取付受片２８ａが折曲されて上
送りばね芯棒２２の組付時におれる薄型化をはか
つている。この取付受片２８ａにより前記上送り
ばね芯棒２２の下端は支承されてミシンヘツド１
に取付けられる。 28 is the middle corner part 19a of the L-shaped link 19
This is a mounting part with a substantially U-shaped cross section and a vertical surface into which the shaft 20 as a pivot point for pivotally mounting the upper end of the L plate rod 4 is inserted. The horizontal mounting receiving piece 28a is bent in a direction perpendicular to the axial direction of the spring 1, thereby achieving a thinner profile that can be folded down when the upper feed spring core rod 22 is assembled. The lower end of the upper feed spring core rod 22 is supported by this mounting piece 28a, and the sewing machine head 1
mounted on.

２９は前記Ｌ板ロツド４の上下方向および前後
方向の移動ストロークを長短調整するための調整
機構であり、この調整機構２９は一端が軸３０に
より前記Ｌ板ロツド４に枢着され、他端が軸３１
により前後又部品３２の下端に枢着された前後め
がねリンク３３と、中軸ダルマ部品３４の下端に
配置されて締付ネジ３５にて二又部３６が枢着さ
れ略中間部がミシンヘツド１に軸３７ａにより起
倒自在に枢着された短リンク３７とから形成され
る。 Reference numeral 29 is an adjustment mechanism for adjusting the vertical and longitudinal movement strokes of the L plate rod 4. One end of this adjustment mechanism 29 is pivotally connected to the L plate rod 4 by a shaft 30, and the other end is pivoted to the L plate rod 4. axis 31
The front and rear glasses links 33 are pivotally connected to the front and rear or to the lower end of the part 32, and the fork part 36 is arranged at the lower end of the center shaft Daruma part 34 and is pivotally connected by a tightening screw 35, and the approximately middle part is pivoted to the sewing machine head 1. It is formed from a short link 37 which is pivotally connected by a link 37a so as to be freely tiltable.

３８は前記Ｌ板ロツド４を昇降自在に且つ揺動
自在に支持するために数個のネジ３９によりミシ
ンヘツド１に着脱自在にネジ止めされる押え座金
であり、この押え座金３８は縫針６の縫製品ａの
突刺し量を充分になすために、Ｌ板ロツド４の移
動ストロークを大きく採れるように、前後めがね
リンク３３の軸３０が衝突して移動に支障がない
ようにするとともに送り足５等を足操作により上
げるための操作機構（図示せず）からのリンクに
結合された連結部品４７の移動ストロークに支障
がないように切欠部３８ａが下方部に設けられて
移動を許容するようになつている。 Reference numeral 38 denotes a presser washer that is detachably screwed to the sewing machine head 1 with several screws 39 in order to support the L plate rod 4 so as to be able to move up and down and swing freely. In order to obtain a sufficient amount of piercing for item a, the shafts 30 of the front and rear spectacle links 33 should not collide and hinder movement, and the feed legs 5, etc. should be A notch 38a is provided in the lower part to allow movement of the connecting part 47 connected to a link from an operating mechanism (not shown) for raising it by foot operation so as not to hinder the movement stroke. ing.

４０は縫針６が下端に着脱自在に装着された針
棒であり、この針棒４０は前記上軸７からの回転
を釣合錘４１、クランク軸４２等を介して昇降運
動に変換されて昇降自在となる。 Reference numeral 40 denotes a needle bar with a sewing needle 6 detachably attached to its lower end, and this needle bar 40 moves up and down by converting the rotation from the upper shaft 7 into an up-and-down motion via a counterweight 41, a crankshaft 42, etc. Become free.

４３は縫針６の目６ａに導通させる上糸を円
滑に繰出すために上下動するリンク天秤であり、
このリンク天秤４３の一端は前記針棒４０に上下
摺動自在に遊嵌される摺動部４４を下端に有する
クランク機構４５により前記釣合錘４１の回転を
上下運動に変換するようになつている。 43 is a link take-up that moves up and down in order to smoothly feed out the upper thread to be passed through the eye 6a of the sewing needle 6;
One end of the link take-up 43 is adapted to convert the rotation of the counterweight 41 into vertical movement by a crank mechanism 45 having a sliding portion 44 at the lower end that is loosely fitted into the needle bar 40 so as to be able to slide vertically. There is.

４６は前記押棒１６の下端に着脱自在に装着さ
れる押え足であり、この押え足４６は前記押棒１
６が嵌入された前記押棒取付部品１７が前記Ｌ形
リンク１９によつて揺動すると、その昇降動作に
より前記送り足５の動きと協同して縫製品ａを押
圧しながら移動させるようになつている。 46 is a presser foot detachably attached to the lower end of the presser bar 16;
When the push rod attachment part 17 into which the push rod 6 is fitted is swung by the L-shaped link 19, its lifting and lowering movement cooperates with the movement of the feed foot 5 to press and move the sewn product a. There is.

本考案の一実施例は上述の如き構成からなり、
モータの駆動力により上軸７が回転し、カムロツ
ド８がこの回転力を受動して往復移動すると、こ
のカムロツド８に連係しているクランク機構９の
クランク軸９ａに一端を固着している受動リンク
１１は円弧を描きながら揺動運動することによつ
て上下めがねリンク１４を往復移動させる。この
ため上下めがねリンク１４に上方の一端を枢着す
るとともに下方の一端を押棒取付部品１７に枢着
しているＬ形リンク１９は上下めがねリンク１４
に押圧されたり、引張られたりすることにより揺
動して変位するため、このＬ形リンク１９の中間
の隅角部１９ａに、軸２０により上端を枢着し、
下端には送り足５を固着している支持部材として
のＬ板ロツド４は上昇動作または降下動作をくり
返しながら前後方向に送り歯（図示せず）の前後
方向に揺動するのと協同して揺動することにより
縫製品ａを移動させる。 One embodiment of the present invention has the above-mentioned configuration,
When the upper shaft 7 rotates due to the driving force of the motor and the cam rod 8 receives this rotational force and moves back and forth, a passive link whose one end is fixed to the crankshaft 9a of the crank mechanism 9 linked to the cam rod 8 11 reciprocates the upper and lower eyeglass links 14 by swinging in an arc. For this reason, the L-shaped link 19 whose upper end is pivotally connected to the upper and lower spectacle links 14 and whose lower end is pivotally connected to the push rod attachment part 17 is connected to the upper and lower spectacle links 14.
The upper end of the L-shaped link 19 is pivotally connected to the middle corner 19a of the L-shaped link 19 by means of a shaft 20, so that it can be swung and displaced by being pressed or pulled by the L-shaped link 19.
The L-plate rod 4, which serves as a support member and has a feed foot 5 fixed to its lower end, repeatedly moves up or down while collaborating with the movement of the feed dog (not shown) in the back and forth direction. The sewn product a is moved by swinging.

この際、Ｌ形リンク１９と支持部材としてのＬ
板ロツド４とは軸２０と取付部品２８を用いて枢
着されるほか、この取付部品２８の外側にはミシ
ンヘツド１の軸長方向と直交するように向いた水
平な取付受片２８ａが形成されてミシンヘツド１
の軸長方向への突出度が制約されているので、こ
のＬ形リンク１９とＬ板ロツド４とを結合するた
めの取付受片２８ａによつて上送りばね芯棒２２
の下端を支承して共用化をはかるとともに上送り
ばね芯棒２２の組付時の薄形化がはかれ、Ｌ板ロ
ツド４が昇降動作および前後の揺動動作を行うの
に追従して外周に捲回したコイルばね２３のばね
力を片寄りなく常時下方に受けるように弾力的に
Ｌ板ロツド４を下方に附勢するようにしている。
またＬ板ロツド４の下方部を押えるための押え座
金３８には切欠部３８ａが形成されているので、
Ｌ板ロツド４のストロークを大きく採れ、縫製品
ａに対する縫針６の突刺量を充分な深さにできる
とともに縫製品ａの縫製中に送り足５等を足操作
により上げるためにＬ板ロツド４に連結するため
の連結部品４７が駆動位置の邪魔にならない。 At this time, the L-shaped link 19 and the L-shaped link
In addition to being pivotally connected to the plate rod 4 using a shaft 20 and a mounting part 28, a horizontal mounting piece 28a is formed on the outside of this mounting part 28 and is oriented perpendicular to the axial direction of the sewing machine head 1. Sewing machine head 1
Since the degree of protrusion in the axial direction of the upper feed spring core rod 22 is limited, the upper sending spring core rod 22 is
The lower end of the upper feed spring core rod 22 is supported for common use, and the upper feed spring core rod 22 is made thinner when assembled. The L-plate rod 4 is elastically urged downward so that it always receives the spring force of the coil spring 23 wound downward without being biased.
Also, since the presser washer 38 for holding down the lower part of the L plate rod 4 is formed with a notch 38a,
The stroke of the L plate rod 4 can be made large, and the amount of penetration of the sewing needle 6 into the sewn product a can be set to a sufficient depth. The connecting part 47 for connecting does not get in the way of the drive position.

また上下めがねリンク１４の押圧によるＬ形リ
ンク１９が傾倒すると、このＬ形リンク１９に、
軸１８により一端が枢着されている押棒取付部品
１７は梃子作用により上下動されるので、この押
棒取付部品１７に嵌入され下端に押え足４６を固
着している押棒１６は送り足５を下端に固着して
いるＬ板ロツド４の昇降動作に協同して昇降され
る。 Also, when the L-shaped link 19 is tilted due to the pressure of the upper and lower glasses links 14, this L-shaped link 19
The push rod attachment part 17, whose one end is pivotally connected to the shaft 18, is moved up and down by lever action, so the push rod 16, which is fitted into the push rod attachment part 17 and has the presser foot 46 fixed to its lower end, moves the feed foot 5 to the lower end. It is raised and lowered in cooperation with the raising and lowering movement of the L-plate rod 4 fixed to the board.

そして既述のように下端に送り足５を固着した
リンク機構１０の一部品としてのＬ板ロツド４と
Ｌ形リンク１９とは対向する垂直な取付面を有す
る略断面コ字状の取付部品２８を用いてこの取付
部品２８内に軸２０を嵌挿することによつて枢着
し、しかもこの取付部品２８の外側にはミシンヘ
ツド１に対して軸長方向と直交するように水平な
上送りばね芯棒２２の下端を支承するための取付
受片２８ａを形成してミシンヘツド１の軸長方向
への突出長さを短く形成しているので、送り足５
を昇降自在に且つ揺動自在に駆動させるためのリ
ンク機構１０やその移動ストロークを調整するた
めの調整機構２９、さらにはこの調整機構２９の
構成部品としてのリンク等を被うための面板２の
厚さを薄くし、軽量化できる。従つてハンドバ
ツグ、財布等の皮製品や比較的柔軟性に欠けた
り、曲面加工を必要とする縫製品ａを縫着する場
合に、縫製品ａの端部が上方に浮き上つて面板２
に衝突する等の不都合はなくなり、縫製品ａに綺
麗な仕上りの縫目が縫製できる。 As described above, the L-plate rod 4 and the L-shaped link 19, which are part of the link mechanism 10 with the feed leg 5 fixed to the lower end, have a mounting part 28 having a substantially U-shaped cross section and having vertical mounting surfaces facing each other. The shaft 20 is pivotally mounted by fitting and inserting the shaft 20 into the mounting part 28, and an upper feed spring is provided on the outside of the mounting part 28, which is horizontal to the sewing machine head 1 and perpendicular to the shaft length direction. Since the attachment piece 28a for supporting the lower end of the core rod 22 is formed to shorten the protrusion length in the axial direction of the sewing machine head 1, the feed foot 5
The link mechanism 10 for raising and lowering and swinging freely, the adjustment mechanism 29 for adjusting its movement stroke, and the face plate 2 for covering the links and the like as components of this adjustment mechanism 29. It can be made thinner and lighter. Therefore, when sewing a leather product such as a handbag or wallet, or a sewn product a that is relatively inflexible or requires a curved surface treatment, the end of the sewn product a lifts upward and the face plate 2
This eliminates inconveniences such as collision between the sewing machine and the sewing machine, and it is possible to sew neatly finished seams on the sewn product a.

〔考案の効果〕[Effect of idea]

以上のように本考案は、面板の厚さを薄く形成
できるから、縫製品が縫製時に引掛かるという不
都合を解消して縫製作業を能率良く向上できると
ともに均等な仕上りのマチを縫製できる。 As described above, in the present invention, since the thickness of the face plate can be made thin, the inconvenience of the sewn product being caught during sewing can be eliminated, the sewing work can be efficiently improved, and a gusset with an even finish can be sewn.

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

第１図は本考案の一実施例を示す分解斜面図、
第２図は同じく面板を外した状態の正面図、第３
図は面板を被着した状態の側面図、第４図は面板
を外した状態の従来のミシンの正面図、第５図は
面板を被着した状態の断面図である。 １……ミシンヘツド、２……面板、４……Ｌ板
ロツド、５……送り足、７……上軸、９……クラ
ンク機構、１０……リンク機構、１９……Ｌ形リ
ンク、１９ａ……隅角部、２０……軸、２２……
上送りばね芯棒、２８……取付部品、２８ａ……
取付受片。 FIG. 1 is an exploded perspective view showing an embodiment of the present invention.
Figure 2 is a front view with the face plate removed, Figure 3
4 is a front view of a conventional sewing machine with the face plate removed, and FIG. 5 is a cross-sectional view of the sewing machine with the face plate attached. DESCRIPTION OF SYMBOLS 1...Sewing machine head, 2...Face plate, 4...L plate rod, 5...Feed foot, 7...Upper shaft, 9...Crank mechanism, 10...Link mechanism, 19...L-shaped link, 19a... ... Corner, 20 ... Axis, 22 ...
Upper feed spring core rod, 28... Mounting parts, 28a...
Mounting piece.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] モータの駆動力により回転する上軸の回転運動
を受動する多節のリンク機構の一部品を構成し、
且つ送り足を下端に装着し昇降自在になるととも
に揺動自在に連続して駆動する支持部材と、該支
持部材を下方にばね附勢するコイルばねが捲回さ
れた上送りばね芯棒とを覆うようにミシンのヘツ
ドに着脱自在に取付けられる面板取付構造にし
て、前記支持部材に垂直な取付面を有する取付部
品を枢着するとともに該取付部品の外側にミシン
ヘツドの軸長方向に直交する方向に突設した取付
受片により前記上送りばね芯棒を支承しミシンヘ
ツドに取付けることを特徴としたミシンの面板取
付構造。 It forms part of a multi-joint link mechanism that receives the rotational movement of the upper shaft rotated by the driving force of the motor.
In addition, a support member is provided with a feed foot attached to the lower end and is movable up and down and continuously driven in a swingable manner, and an upper feed spring core rod is wound with a coil spring that biases the support member downward. A face plate mounting structure that can be detachably attached to the head of the sewing machine so as to cover the support member, and a mounting part having a mounting surface perpendicular to the support member is pivotally mounted on the outside of the mounting part in a direction perpendicular to the axial direction of the sewing machine head. A face plate mounting structure for a sewing machine, characterized in that the upper feed spring core rod is supported by a mounting piece protruding from the top and is mounted on a sewing machine head.