JPH0718394Y2 - Zigzag sewing machine - Google Patents

Zigzag sewing machine

Info

Publication number
JPH0718394Y2
JPH0718394Y2 JP7198490U JP7198490U JPH0718394Y2 JP H0718394 Y2 JPH0718394 Y2 JP H0718394Y2 JP 7198490 U JP7198490 U JP 7198490U JP 7198490 U JP7198490 U JP 7198490U JP H0718394 Y2 JPH0718394 Y2 JP H0718394Y2
Authority
JP
Japan
Prior art keywords
threading
rod
needle
threading rod
sewing machine
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 - Fee Related
Application number
JP7198490U
Other languages
Japanese (ja)
Other versions
JPH0432676U (en
Inventor
浩志 小滝
Original Assignee
ジューキ株式会社
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 ジューキ株式会社 filed Critical ジューキ株式会社
Priority to JP7198490U priority Critical patent/JPH0718394Y2/en
Publication of JPH0432676U publication Critical patent/JPH0432676U/ja
Application granted granted Critical
Publication of JPH0718394Y2 publication Critical patent/JPH0718394Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【考案の詳細な説明】 [産業上の利用分野] この考案は、縫い針の針穴に糸を挿通するための糸通し
装置を具えたジグザグミシンに関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a zigzag sewing machine including a threading device for inserting a thread into a needle hole of a sewing needle.

[従来の技術] 従来の水平釜を具えるジグザグミシンにおける糸通し装
置にあっては、縫い針が左右の揺動位置で停止された状
態で糸通しフックを針穴に進入させる場合、針穴が常に
前方を向いた状態で縫い針が進入される関係上、針穴に
対する糸通しフックの進入角度が変化するため、糸通し
作業を確実に行うことができないのみならず、糸通しフ
ックが縫い針に衝突して両者が破損するおそれもあっ
た。
[Prior Art] In a conventional threading device for a zigzag sewing machine including a horizontal hook, when the threading hook is inserted into the needle hole with the sewing needle stopped at the left and right swing positions, the needle hole Since the sewing needle enters with the needle always facing forward, the angle at which the threading hook enters the needle hole changes, so not only can threading work not be performed reliably, but the threading hook can also be sewn. There is also a risk that both may be damaged by colliding with the needle.

このため、糸通しフックを有する糸通し棒の針棒に対す
る位置を規制することにより、針穴と糸通しフックとの
相対位置関係が一定に保持できるようにし、縫い針がい
かなる揺動位置で停止されても縫い針および糸通しフッ
クが破損することなく、糸通し作業を確実に行おうとす
る試みが、例えば実公昭60−22937号等に開示されてい
る。
Therefore, by restricting the position of the threading rod having the threading hook with respect to the needle bar, the relative positional relationship between the needle hole and the threading hook can be kept constant, and the sewing needle stops at any swing position. An attempt to surely carry out the threading work without damaging the sewing needle and the threading hook even if it is performed is disclosed in, for example, Japanese Utility Model Publication No. 60-22937.

[考案が解決しようとする課題] しかしながら、従来技術にあっては、糸通し棒の昇降操
作をなすための操作レバーが操作部材等を介してミシン
ヘッド側面部分に設置されているため糸通し動作時の作
業性が悪いという問題がある。
[Problems to be solved by the invention] However, in the prior art, since the operation lever for performing the lifting operation of the threading rod is installed on the side surface portion of the sewing machine head through the operation member or the like, the threading operation is performed. There is a problem that the workability at time is poor.

すなわち、糸通し時には、一方の手で糸を把持し他方の
手で糸通しフックを動作させるための操作レバーを下方
に押し下げつつ行うことになるが、両手が離れてしまい
作業がなしにくいのである。
That is, at the time of threading, the operation is performed while holding the thread with one hand and pushing down the operation lever for operating the threading hook with the other hand, but it is difficult to do the work because both hands are separated. .

また、針穴と糸通しフックとの相対位置関係が一定に保
持するための機構、あるいは糸通し棒とこれの操作レバ
ーとの関連構成における部品点数が多くなり、ミシンヘ
ッドにおいて大きなスペースを必要とする一方原価コス
トも増加するという問題がある。
In addition, the mechanism for maintaining the relative positional relationship between the needle hole and the threading hook constant, or the number of parts in the configuration related to the threading rod and its operating lever is increased, and a large space is required in the sewing machine head. However, there is a problem that the cost cost also increases.

[課題を解決するための手段] この考案は、上述の課題を解決するためになされたもの
で、 糸通しフックと縫い針の針穴との相対位置関係を一定に
保持するようにした糸通し装置を具えたジグザグミシン
において、 前記糸通し装置を、 上端に作動体を、下端に糸通しフックをそれぞれ有し上
下動可能な糸通し棒と、 針棒の揺動台に連結されこれに従動する糸通し棒支持体
と、 前記糸通し棒支持体の本体部に付設され、この本体部に
形成されたスリットを介して前記作動体に上端を固定さ
れ、下方の突出部分は糸通し棒の下部に軸支される糸通
し操作レバーと、で構成するとともに、 糸通し棒支持体の前記本体部の上端に設けられる揺動板
の一端を揺動台に軸支し、他端には固定ピンに係合する
貫通溝を形成し 針棒の適宜位置には下降する糸通し棒の係止ピンが当接
するための位置決めストッパーを設け、 糸通し棒の上端が挿通される作動体の側壁には糸通し棒
の係合ピンが嵌合する傾斜溝を形成することにより、糸
通しの作業性に優れ、しかも少ない部品点数が原価コス
トの低減を実現し得るジグザグミシンを提供するもので
ある。
[Means for Solving the Problems] The present invention has been made in order to solve the above-mentioned problems, and is a threading device that maintains a relative positional relationship between a threading hook and a needle hole of a sewing needle. In a zigzag sewing machine equipped with a device, the threading device is provided with an operating body at an upper end and a threading hook at a lower end, which is movable up and down, and is connected to a rocking base of a needle bar and driven thereby. And a main body of the threading rod support, the upper end of which is fixed to the actuating body through a slit formed in the main body. A threading operation lever pivotally supported on the lower part, and one end of a rocking plate provided at the upper end of the main body of the threading rod support is pivotally supported on the rocking base and fixed to the other end. Form a through groove that engages the pin and lower it to the appropriate position on the needle bar. By providing a positioning stopper for the locking pin of the threading rod to come into contact with, and by forming an inclined groove on the side wall of the operating body through which the upper end of the threading rod is inserted, the engaging pin of the threading rod is fitted. The present invention provides a zigzag sewing machine which is excellent in threading workability and can realize a reduction in cost and cost with a small number of parts.

[作用] 上記ジグザグミシンは、針棒の揺動台に従動する揺動板
により、糸通し棒支持体の本体部は針棒と同様の円弧軌
跡を描いて同期揺動するので、下端に糸通しフックを具
えた糸通し棒と針棒との相対位置は常に一定に保持され
る。
[Operation] In the above-mentioned zigzag sewing machine, the main body of the threading bar support oscillates synchronously by drawing a circular arc locus similar to that of the needle bar by the oscillating plate that is driven by the oscillating table of the needle bar. The relative position between the threading rod having the threading hook and the needle bar is always kept constant.

糸通し操作レバーを押し下げると作動体を介して糸通し
棒は糸通し棒の係止ピンが針棒の位置決めストッパーに
当接するまで下降して停止する。
When the threading operation lever is pushed down, the threading rod is lowered and stopped through the actuating body until the locking pin of the threading rod comes into contact with the positioning stopper of the needle bar.

この時点で、糸通し棒の下端に設けられた糸通しフック
は針穴と同一の高さに位置することになる。
At this point, the threading hook provided at the lower end of the threading rod is located at the same height as the needle hole.

さらに、糸通し操作レバーを押し下げると、作動体は停
止している糸通し棒の上端との間に介装された付勢バネ
を圧縮して下降する、すると作動体の側壁の傾斜溝に係
合される係合ピンがその高さ位置で糸通し棒とともに所
定量回転する。
Further, when the threading operation lever is pushed down, the actuating body compresses the biasing spring interposed between the threading rod and the upper end of the threading rod that is stopped and moves down. The mating engagement pin rotates a predetermined amount together with the threading rod at that height position.

このため、糸通し棒の下端に設けられた糸通しフックが
水平回転をなし、その先端が針穴に挿通することにな
る。
Therefore, the threading hook provided at the lower end of the threading rod makes horizontal rotation, and the tip of the threading hook is inserted into the needle hole.

針穴から突出した糸通しフックに糸を係合し、糸通し操
作レバーを離すと、糸通しフック、糸通し棒、作動体、
糸通し操作レバー等は前記付勢バネ等の付勢力により前
述とは逆の過程により原位置に復帰し糸通し作業が終了
する [考案の実施例] 図面に基づいて、この考案の実施例を説明する。
When the thread is engaged with the threading hook protruding from the needle hole and the threading operation lever is released, the threading hook, threading rod, actuator,
The threading operation lever or the like is returned to the original position by the process reverse to the above by the urging force of the urging spring or the like, and the threading operation is completed. [Example of the invention] Based on the drawings, an example of the invention will be described. explain.

第1図ないし第3図は、この考案の1実施例を示す図で
ある。
1 to 3 are views showing an embodiment of the present invention.

第1図は本願に係るジグザグミシンの糸通し装置の要部
を示す斜視図であり、図において、1は、上端に作動体
2を、下端に糸通しフック3をそれぞれ有し上下動可能
な糸通し棒、5は駆動板5aの往復動によって往復回動し
て支持する針棒4、縫い針Nを所定サイクルで振ってジ
グザグ縫いをなすフレーム10に固定した垂直軸11に回動
可能な揺動台、6は、揺動板6bとこれ一体に下方に垂下
形成される本体部6aとからなる前記糸通し棒1の支持体
である。揺動板6bの一端は前記揺動台5に軸支され、他
端には円弧状の貫通溝6b1が形成されフレーム10に固着
した固定ピンP1に嵌合している。また、本体部6aには後
述のように上下方向にスリット6a1が形成されている。
Lは、前記糸通し棒支持体6の本体部6aに付設され、こ
の本体部6aに形成されたスリット6a1を介して前記作動
体2に上端を固定され、下方の突出部分は糸通し棒1の
下部に軸支される糸通し操作レバー、P2は糸通し棒1の
所定個所に形成された係止ピン、Sは糸通し棒1の下降
時に前記係止ピンP2に当接し糸通し棒1の下端に設けら
れた糸通しフック3を所定の高さ位置すなわち、縫い針
Nの針穴Oに対向する位置に保持する位置決めストッパ
ーで、針棒4に固定されている。
FIG. 1 is a perspective view showing a main part of a threading device for a zigzag sewing machine according to the present application. In FIG. 1, reference numeral 1 has an operating body 2 at an upper end and a threading hook 3 at a lower end, which are vertically movable. The threading rod 5 is reciprocally rotated by the reciprocating movement of the drive plate 5a, and is supported by a vertical shaft 11 fixed to a frame 10 for zigzag sewing by swinging a needle bar 4 and a sewing needle N in a predetermined cycle. The rocking base 6 is a support for the threading rod 1 which is composed of a rocking plate 6b and a main body 6a that is formed integrally with the rocking plate 6b. One end of the oscillating plate 6b is axially supported by the oscillating base 5, and an arcuate through groove 6b1 is formed at the other end and is fitted to a fixed pin P1 fixed to the frame 10. Further, a slit 6a1 is formed in the up-down direction in the body portion 6a as described later.
L is attached to the main body portion 6a of the threading rod support 6, the upper end is fixed to the actuating body 2 through a slit 6a1 formed in the main body portion 6a, and the lower protruding portion is the threading rod 1 A threading operation lever pivotally supported at the lower part of the threading pin, P2 is a locking pin formed at a predetermined position of the threading rod 1, S is abutting against the locking pin P2 when the threading rod 1 is lowered, and S is a threading rod 1 Is fixed to the needle bar 4 by a positioning stopper which holds the threading hook 3 provided at the lower end of the sewing machine at a predetermined height position, that is, a position facing the needle hole O of the sewing needle N.

なお、7は作動体2と揺動板6bとの間に架装された付勢
バネで、常時は糸通し操作レバーL、作動体2、糸通し
棒1を上方の原位置に付勢してこれらを糸通し棒支持体
6に支持するようになっている。
Reference numeral 7 denotes an urging spring mounted between the operating body 2 and the rocking plate 6b, which normally urges the threading operation lever L, the operating body 2, and the threading rod 1 to the upper original position. These are supported by the threading rod support 6.

第2図は、第1図の要部を示す縦断面図であり、図示の
ように、糸通し操作レバーLと糸通し棒1とは糸通し棒
支持体6の本体部6aを間にして並立されている。そし
て、糸通し操作レバーLの上端と糸通し棒1の上端とは
作動体2を介して連結固定されている。
FIG. 2 is a longitudinal sectional view showing the main part of FIG. 1, and as shown in the drawing, the threading operation lever L and the threading rod 1 are arranged with the main body portion 6a of the threading rod support 6 in between. It is lined up. The upper end of the threading operation lever L and the upper end of the threading rod 1 are connected and fixed via an actuating body 2.

すなわち、糸通し棒1は作動体2の下側受け部2aに軸支
され、上側受け部2bと糸通し棒1の上端部との間に介装
された付勢バネ8によって所定位置に支持されている。
That is, the threading rod 1 is axially supported by the lower receiving portion 2a of the actuating body 2, and is supported at a predetermined position by the biasing spring 8 interposed between the upper receiving portion 2b and the upper end portion of the threading rod 1. Has been done.

そして、糸通し棒支持体6の本体部6aに設けられたスリ
ット6a1に嵌合する作動体2の突出部2cに糸通し操作レ
バーLの上端がネジ2dで固定されている。
Then, the upper end of the threading operation lever L is fixed to the projecting portion 2c of the actuating body 2 that fits into the slit 6a1 provided in the main body portion 6a of the threading rod support body 6 with the screw 2d.

第3図は、糸通し棒1の回動動作、換言すれば針穴位置
まで下降して針穴と対向している糸通しフック3が回動
して針穴Oに挿入される構成作用を示す図である。
FIG. 3 shows the rotation operation of the threading rod 1, in other words, the constituent action of lowering to the needle hole position and rotating the threading hook 3 facing the needle hole to be inserted into the needle hole O. FIG.

図において、2eは作動体2の側壁に形成される貫通傾斜
溝で、この傾斜溝2eには糸通し棒1に形成された係合ピ
ンP2が嵌合している。
In the figure, 2e is a penetrating inclined groove formed in the side wall of the actuating body 2, and an engaging pin P2 formed in the threading rod 1 is fitted in this inclined groove 2e.

上述の構成の下に該実施例の作用を説明する。The operation of the embodiment will be described under the above configuration.

第1図において、駆動板5aの往復動によって針棒4の揺
動台5に従動する揺動板6bにより、糸通し棒支持体6の
本体部6aは針棒4と同様の円弧軌跡を描いて同期揺動す
るので、下端に糸通しフック3を具えた糸通し棒1と針
棒4との相対位置は常に一定に保持される。すなわち、
糸通しフック3の先端と針穴Oとは対向する位置にある
(この時点で互いの高さ位置は異なっている)。
In FIG. 1, the main body portion 6a of the threading rod support 6 draws an arc locus similar to that of the needle bar 4 by the swing plate 6b that is driven by the swing base 5 of the needle bar 4 by the reciprocating motion of the drive plate 5a. Since they oscillate in synchronism with each other, the relative position between the threading rod 1 having the threading hook 3 at the lower end and the needle bar 4 is always kept constant. That is,
The tip of the threading hook 3 and the needle hole O are at positions facing each other (the height positions thereof are different at this point).

一方、糸通し作業のためにミシンを停止させて糸通し操
作レバーLを付勢バネ7に抗して押し下げると、作動体
2を介して糸通し棒1は糸通し棒の係止ピンP2が針棒4
の位置決めストッパーSに当接するまで下降して停止す
る、この時点で、糸通し棒1の下端に設けられた糸通し
フック3は針穴Oと同一の高さに位置することになる。
On the other hand, when the sewing machine is stopped and the threading operation lever L is pushed down against the biasing spring 7 for threading work, the threading rod 1 is connected to the threading rod locking pin P2 via the operating body 2. Needle bar 4
The needle threading hook 3 provided at the lower end of the threading rod 1 is located at the same height as the needle hole O at this point.

さらに、糸通し操作レバーLを押し下げると、作動体2
は、停止している糸通し棒1の上端との間に介装された
付勢バネ8を圧縮して作動体2のみが下降する、する
と、作動体2の側壁の傾斜溝2eに係合される係合ピンP2
がその高さ位置で糸通し棒1とともに所定量回転する。
すなわち、第3図(a)に示すように、作動体2の下降
に伴ない図の傾斜溝2eにおける右下端位置から左上端位
置に移動することになる。(もちろん、係合ピンP2の高
さ位置は変らない) このため、糸通し棒1の下端に設けられた糸通しフック
3が糸通し棒1を中心にしてともに水平回転をなし(同
図(b))その先端が同図(a)における係合ピンP2の
水平移動距離分に相当する距離分、回転移動して、針穴
Oに挿通されることになる。
Further, when the threading operation lever L is pushed down, the operating body 2
Compresses the urging spring 8 interposed between the upper end of the threading rod 1 which is stopped and only the operating body 2 descends. Then, the engaging groove 2e on the side wall of the operating body 2 is engaged. Engagement pin P2
Rotates at the height position together with the threading rod 1 by a predetermined amount.
That is, as shown in FIG. 3 (a), as the actuation body 2 descends, it moves from the lower right end position to the upper left end position in the inclined groove 2e in the figure. (Of course, the height position of the engagement pin P2 does not change.) Therefore, the threading hook 3 provided at the lower end of the threading rod 1 makes horizontal rotation around the threading rod 1 (see FIG. b)) The tip thereof is rotationally moved by a distance corresponding to the horizontal movement distance of the engagement pin P2 in FIG.

針穴Oから突出した糸通しフック3に、第3図(c)に
示すように糸を係合し、糸通しレバーLを離すと、糸通
しフック3、糸通し棒1、作動体2、糸通しレバーL等
は前記付勢バネ7、8等の付勢力により前述とは逆の過
程により原位置に復帰し糸通し作業が終了する。
When the thread is engaged with the threading hook 3 protruding from the needle hole O as shown in FIG. 3 (c) and the threading lever L is released, the threading hook 3, the threading rod 1, the operating body 2, The threading lever L and the like are returned to their original positions by the urging force of the urging springs 7 and 8 in a process reverse to the above, and the threading operation is completed.

[考案の効果] この考案は、以上述べた構成作用により、糸通しの作業
性に優れ、しかも少ない部品点数でコンンパクトに構成
できるから組立が簡単で、かつ原価コストの低減を実現
し得るジグザグミシンを実現できる。
[Effects of the Invention] The present invention is a zigzag sewing machine that is excellent in threading workability and can be compactly configured with a small number of parts due to the above-described configuration operation, and can be assembled easily and reduce cost cost. Can be realized.

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

第1図は、この考案の1実施例を示す一部省略斜視図、
第2図は、第1図における要部縦断面図、第3図
(a)、(b)および(c)は、糸通し棒の回動と糸通
しフックの針穴への挿入動作および縫い針の針穴に挿通
した糸通しフックに糸を係合する状態を示す説明図であ
る。 図において、 1……糸通し棒 2……作動体 2e……傾斜溝 3……糸通しフック 4……針棒 5……揺動台 6……糸通し棒支持体 6a……本体部 6b……揺動板 6b1……貫通溝 L……糸通し操作レバー P1……固定ピン P2……係止ピン
FIG. 1 is a partially omitted perspective view showing an embodiment of the present invention,
FIG. 2 is a longitudinal sectional view of an essential part in FIG. 1, and FIGS. 3 (a), (b) and (c) show rotation of the threading rod and operation of inserting the threading hook into the needle hole and sewing. It is explanatory drawing which shows the state which engages a thread with the threading hook inserted in the needle hole of a needle. In the figure, 1 ... Threading rod 2 ... Actuator 2e ... Inclined groove 3 ... Threading hook 4 ... Needle bar 5 ... Swing base 6 ... Threading rod support 6a ... Main body 6b …… Swing plate 6b1 …… Through groove L …… Threading operation lever P1 …… Fixing pin P2 …… Locking pin

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】糸通しフックと縫い針の針穴との相対位置
関係を一定に保持するようにした糸通し装置を具えたジ
グザグミシンであって、 前記糸通し装置を、 上端に作動体を、下端に糸通しフックをそれぞれ有し上
下動可能な糸通し棒と、 針棒の揺動台に連結されこれに従動する糸通し棒支持体
と、 前記糸通し棒支持体の本体部に付設され、この本体部に
形成されたスリットを介して前記作動体に上端を固定さ
れ、下方の突出部分は糸通し棒の下部に軸支される糸通
し操作レバーと、で構成するとともに、 糸通し棒支持体の前記本体部の上端に設けられる揺動板
の一端を揺動台に軸支し、他端には固定ピンに係合する
貫通溝を形成し 針棒の適宜位置には下降する糸通し棒の係止ピンが当接
するための位置決めストッパーを設け、 糸通し棒の上端が挿通される作動体の側壁には糸通し棒
の係合ピンが嵌合する傾斜溝を形成したことを特徴とす
るジグザグミシン。
1. A zigzag sewing machine including a threading device configured to keep a relative positional relationship between a threading hook and a needle hole of a sewing needle constant, the threading device having an operating body at an upper end thereof. , A threading rod that has threading hooks at its lower ends and can move up and down, a threading rod support that is connected to and follows the oscillating base of the needle bar, and is attached to the main body of the threading rod support. The upper end is fixed to the actuating body through a slit formed in the main body, and the lower protruding portion is composed of a threading operation lever pivotally supported on the lower portion of the threading rod. One end of an oscillating plate provided on the upper end of the main body of the rod support is pivotally supported on an oscillating table, and a through groove that engages with a fixed pin is formed at the other end to descend to an appropriate position of the needle bar. A positioning stopper is provided to allow the locking pin of the threading rod to come into contact with it. A zigzag sewing machine characterized in that an inclined groove into which an engaging pin of a threading rod is fitted is formed on a side wall of an operating body through which an upper end is inserted.
JP7198490U 1990-07-06 1990-07-06 Zigzag sewing machine Expired - Fee Related JPH0718394Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7198490U JPH0718394Y2 (en) 1990-07-06 1990-07-06 Zigzag sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7198490U JPH0718394Y2 (en) 1990-07-06 1990-07-06 Zigzag sewing machine

Publications (2)

Publication Number Publication Date
JPH0432676U JPH0432676U (en) 1992-03-17
JPH0718394Y2 true JPH0718394Y2 (en) 1995-05-01

Family

ID=31609511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7198490U Expired - Fee Related JPH0718394Y2 (en) 1990-07-06 1990-07-06 Zigzag sewing machine

Country Status (1)

Country Link
JP (1) JPH0718394Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4789360B2 (en) * 2001-07-12 2011-10-12 蛇の目ミシン工業株式会社 Sewing machine with needle threading device

Also Published As

Publication number Publication date
JPH0432676U (en) 1992-03-17

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