JPS61217195A

JPS61217195A - Sewing machine

Info

Publication number: JPS61217195A
Application number: JP5897685A
Authority: JP
Inventors: 岩瀬　鷹好
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-03-23
Filing date: 1985-03-23
Publication date: 1986-09-26

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】〔産業上の利用分野〕本発明は一台で本縫と環縫とをなすことができる縫製ミ
シンに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sewing machine that can perform both lock stitch and chain stitch with one machine.

[Conventional technology]

従来、この種のミシンに於て一台で本縫も環縫もできる
ものはなかった。Until now, there was no sewing machine of this type that could perform both lockstitch and chain stitch.

[Problem that the invention seeks to solve]

つまシ、一台で本縫もしくは環縫の一方しかできなけれ
ば不便であって利用価値も低く利用も狭い範囲に限定さ
れる。If a single sewing machine can only perform lock stitching or chain stitching, it is inconvenient, its value is low, and its use is limited to a narrow range.

[Means for solving problems]

本発明はベッド内に揺振自在として装置した揺動端側の
前後個所に前側頭部および後側頭部を有する揺動台と、
これ等各頭部に搭載した本縫用回転釜および環縫用ルー
バーと、ベッド内に設けた釜・ルーバー用駆動シャフト
と、この駆動シャフトと連動する回転釜作動用伝達部と
、同じく駆動シャフトと連動するルーバー作動用伝達部
と、同じく駆動シャフトと連動するルーバー作動用伝達
部と、上記の揺動台の前後揺振用操作部とを備え、揺動
台の前方・後方に択一に揺振させた時には本縫用回転釜
・環縫用ルーバーが択一に送）歯針孔の下の所定位置に
停止するようＫすることＫよって本縫も環縫もできるよ
うにしたものである。The present invention provides a rocking table which is installed in a bed so as to be able to swing freely, and which has a front head and a rear head at front and rear positions on the rocking end side;
The rotary hook for lockstitching and the louver for chain stitching are mounted on each head, the drive shaft for the hook and louver provided in the bed, the transmission section for operating the rotary hook that is linked with this drive shaft, and the drive shaft A transmission section for louver operation that is linked to the drive shaft, a transmission section for louver operation that is also linked to the drive shaft, and an operation section for swinging the rocking table back and forth as described above. When the sewing machine is shaken, the lockstitch rotary hook and chainstitch louver are selectively fed and stopped at a predetermined position below the needle hole.This allows lockstitching and chainstitching to be performed. be.

〔Example〕

図に示す実施例は釜・ルーバー駆動用シャフト（１）の
先端にダブル型自在接手（２）を介して釜シャ７）（３
）を連結し、この釜シャフト（３）の先端に本縫用回転
釜（４）を取付け、またベット責５）の底壁の上に於て
釜シャフト（３）の下側に揺動台（６）を載置して当該
揺動台（６）の基端を中心軸（７）によシベッド（５）
の底壁に支承し、との揺動台（６）の揺動端側の前後個
所に前側頭部（８）および後側頭部（８）′を設け、前
側頭部（８）の上に上記の釜シャ７）（３）を第１軸受
（９）を以て回転自在忙支承すると共に後側頭部（８）
′　の上にルーバーシャ７）＜１１）を第２軸受ａＳを
以て回転に支承し、このルーバーシャフトαＤに環縫用
ルーバーα口を回転不能に固定し、更に同ルーバーシャ
フト（１１）の内端にクランクα荀を備えると共に上記
のベッド（５）内拡駆動シャフト（１）と上下配置で平
行（図には横にずらして示している）する従動シャフト
αＱを装入して同従動シャフトαｅをベッド（５）Ｋ第
３軸受ａηを介して回転自在に支承し、これ等駆動シャ
ツ［１）％従動シャフト舖にプーリーα８ａυ′　を介
してタイミングベルトＨを掛は廻して当該両シャフト（
１）αｅを一緒に回転するようくし、との従動シャフト
（ｌｅの一端に補助シャツ）］をダブル型自在接手Ｑυ
を介して連結して当該補助シャフト（至）を上記の揺動
台（６）上に第４軸受（２）を介して回転自在に支承す
ると共に補助シャフト（至）の先端に回転板（ハ）を固
定し、との回転板■と上記のクランクα荀とを中間にダ
ブル型自在接手Ｑ４を備えた連杆（ハ）で連結しのって
同クランクα４が補助シャフト翰で揺動するようにし、
更にボディ（至）の垂直部に横杆（５）を渡し設け、と
の横杆（２７）の外端に本縫・環縫切換レバー（ハ）を
同じく中間個所にアーム翰を固定し、このアーム（２１
の先端と上記の後側頭部（８）′　とをワイヤー（至）
で連結し、本縫・環縫切換レバー（ハ）を本縫側とした
時には揺動台（６）がワイヤー（至）を介して後方に揺振
して本縫用回転釜（４）を送シ歯針孔０１Ｊの下の所定
位置とし、また本縫・環縫切換レバー（ハ）を環縫側と
した時には揺動台（６）が前方に揺振して環縫用ルーバ
ー０を送り歯針孔Ｇυの下の位置とするようにしたもの
である。In the embodiment shown in the figure, a hook shaft 7) (3
), and a lockstitch rotary hook (4) is attached to the tip of the hook shaft (3), and a swinging platform is installed on the bottom wall of the hook shaft (3) on the bottom wall of the hook shaft (3). (6) is placed on the bed (5) and the base end of the rocking table (6) is placed on the central axis (7).
A front head (8) and a rear head (8)' are provided at the front and rear parts of the swinging end side of the rocking table (6), and the top of the front head (8) is supported on the bottom wall of the rocker. The above-mentioned hook shaft 7) (3) is rotatably supported by the first bearing (9), and the rear head part (8) is rotatably supported.
A louver shaft 7)<11) is rotatably supported on the louver shaft (11) by a second bearing aS, and the opening of the chain stitch louver α is fixed non-rotatably to the louver shaft αD, and the inner end of the louver shaft (11) is is equipped with a crank α and a driven shaft αQ that is arranged vertically and parallel to the drive shaft (1) in the bed (5) (shown shifted laterally in the figure) is inserted into the bed (5) to form the driven shaft αe. The bed (5) K is rotatably supported via the third bearing aη, and the timing belt H is applied to the drive shaft [1)% via the pulley α8aυ′ and rotated to connect both shafts (
1) Comb αe to rotate together, and the driven shaft (auxiliary shirt at one end of le) with double type universal joint Qυ
The auxiliary shaft (to) is rotatably supported on the rocking table (6) via the fourth bearing (2), and a rotating plate (to) is connected to the tip of the auxiliary shaft (to). ) is fixed, and the rotary plate ■ and the above-mentioned crank α are connected by a connecting rod (c) with a double type universal joint Q4 in the middle, and the crank α4 swings on the auxiliary shaft. So,
Further, a horizontal rod (5) is provided across the vertical part of the body (to), a lockstitch/chain stitch switching lever (c) is fixed to the outer end of the horizontal rod (27), and an arm rod is also fixed to the intermediate location. This arm (21
Connect the tip of the wire to the posterior head (8)' above.
When the lockstitch/chainstitch switching lever (c) is set to the lockstitch side, the swing table (6) swings backwards via the wire (to) to turn the lockstitch rotary hook (4). When the feed tooth is set at a predetermined position below the needle hole 01J and the lockstitch/chainstitch switching lever (c) is set to the chainstitch side, the swing table (6) swings forward to move the chainstitch louver 0. It is positioned below the feed dog needle hole Gυ.

尚、図中（至）は下糸、（財）は下糸用ガイド、（至）
は下糸４蛤、□□□は揺動台用リターンバネ、ｃ３７）
は補力用バ木　　　　　・　、　　　　　　　　、。In addition, (to) in the figure is the bobbin thread, (goods) is the bobbin thread guide, (to)
is bobbin thread 4, □□□ is return spring for rocking table, c37)
This is a reinforcement tree.

Ａ、　Ｃ３１はワイヤー用ガイドローラ、■は針板、に
）はストッパーを示す。A, C31 indicates a wire guide roller, ■ indicates a throat plate, and 2) indicates a stopper.

[For production]

本考案は上記のような構成であるので本縫に使用するに
は本縫・環縫切換レバー（至）を本縫側に切換えて本縫
用回転釜（４）を送シ歯針孔Ｇυの下の所定位置とし、
また環縫に使用するには本縫・環縫切換レバー（ハ）を
環縫側に切換て環縫ルーバーα謙を送シ歯針孔０１）の
下の所定位置として夫々行う等の用法で供すればよい。Since the present invention has the above-mentioned configuration, in order to use it for lockstitching, switch the lockstitch/chainstitch switching lever (to) to the lockstitch side and move the lockstitch rotary hook (4) to feed the needle hole Gυ. in place under the
In addition, to use it for chain stitching, switch the lockstitch/chainstitch switching lever (c) to the chainstitch side and place the chainstitch louver α in the specified position below the feed tooth needle hole 01). Just offer it.

〔Effect of the invention〕

本発明は上記の通シ本縫も環縫も可能であるので所期の
目的を完全に達成することができる優れた効果を奏する
ものである。Since the present invention is capable of both the above-mentioned threaded lockstitch and chain stitch, it has an excellent effect of completely achieving the intended purpose.

[Brief explanation of drawings]

図は本発明縫製ミシンの実施例を示すものであって、第
１図は上から見た要部の説明図である。（１）・・・駆動シャフト、（２）・・・自在接手、（
３）・・・薔シャ７　）　、（４）・・・本縫用回転釜
、（５）・・・ベッド、（６）−・・揺動台、（７）・
・・中心軸、（８）・・・前側頭部、（８）’・・・後
側頭部、（９）・・・第１軸受、（１１）・・・ルーバ
ーシャフト。 αり・・・第２軸受、（１３−・・環縫用ルーバー、Ｉ
・・・クランク、αｅ・・・従動シャフト、αη・・・
第３軸受、α檜α枠′・・・プーリー、員−タイミング
ベルト、（至）・・・補助シャフト、Ｑυ・・・自在接
手、働・・・第４軸受、（ハ）・・・回転板、（財）・
・・自在接手、（ハ）・・・連杆、（１）・・・ボディ
、罰・・・横杆、（至）・・・切換レバー、（至）・・
・アーム、（至）・・・ワイヤー、Ｇ１）・・・送シ歯
針孔、（至）・・・下糸、（ロ）・・・下糸ガイド、（
至）・・・下糸４蛤、（至）・・・リターンバネ、（ロ
）・・・補力用バネ、Ｃ３１・・ガイドローラー、（２
）・・・針板、（６）・・・ストッパー。The drawings show an embodiment of the sewing machine of the present invention, and FIG. 1 is an explanatory view of the main parts seen from above. (1)... Drive shaft, (2)... Universal joint, (
3)...Rotary pot for lockstitching, (5)...Bed, (6)...Rocking table, (7)...
... Central axis, (8) ... Front head, (8)' ... Back head, (9) ... First bearing, (11) ... Louver shaft. αri...Second bearing, (13-...Louver for chain stitching, I
...crank, αe...driven shaft, αη...
3rd bearing, α hinoki α frame'...pulley, member - timing belt, (to)... auxiliary shaft, Qυ... universal joint, working... 4th bearing, (c)... rotation Board, (Foundation)・
...Universal joint, (c)...Connection rod, (1)...Body, Punishment...Horizontal rod, (To)...Switching lever, (To)...
・Arm, (to)...wire, G1)...feed tooth needle hole, (to)...bobbin thread, (b)...bobbin thread guide, (
To)...Lobbin thread 4 hook, (To)...Return spring, (B)...Reinforcing spring, C31...Guide roller, (2
)... Throat plate, (6)... Stopper.

Claims

[Claims]

A rocking table with a front head and a rear head at the front and back of the rocking end, which is installed in a bed so that it can swing freely, and a rotary hook for lockstitching and a louver for chain stitching mounted on each of these heads. and,
A drive shaft for the pot and louver provided in the bed, a transmission section for operating the rotary pot that is linked to this drive shaft, a transmission section for operating the louver that is also linked to the drive shaft, and a transmission section for swinging the above-mentioned rocking table back and forth. The front of the rocking table and
A sewing machine characterized in that a lockstitch rotary hook and a chain stitch louver are alternatively stopped at a predetermined position below a feed dog needle hole when the sewing machine is selectively swung rearward.