JPH0333342Y2 - - Google Patents
Info
- Publication number
- JPH0333342Y2 JPH0333342Y2 JP1985204532U JP20453285U JPH0333342Y2 JP H0333342 Y2 JPH0333342 Y2 JP H0333342Y2 JP 1985204532 U JP1985204532 U JP 1985204532U JP 20453285 U JP20453285 U JP 20453285U JP H0333342 Y2 JPH0333342 Y2 JP H0333342Y2
- Authority
- JP
- Japan
- Prior art keywords
- arm
- needle bar
- needle
- swinging arm
- groove
- 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
Links
- 238000009958 sewing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
〔考案の目的〕
（産業上の利用分野）
この考案はミシンの針釡スキマ調節装置に係
り、針棒が摺動するタイプのミシンにおいて針位
置を調整する手段に利用される。[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention relates to a needle shuttle gap adjustment device for sewing machines, and is used as a means for adjusting the needle position in sewing machines of the type where the needle bar slides. be done.
（従来の技術）
従来、この種ミシンにおける針釡のスキマ調節
は、次のような手段によつて行われた。即ち、
(1) 大釡を軸方向に移動させる。或いは、
(2) 針棒サポート軸を軸方向に移動させる。(Prior Art) Conventionally, needle and hook gap adjustment in this type of sewing machine has been carried out by the following means. That is, (1) move the cauldron in the axial direction; Or, (2) move the needle bar support shaft in the axial direction.
上記針釡スキマは、既に一般にもよく知られる
如く、裁縫性能に大きな影響を及ぼし、その組付
け調整に当つては作業者に高度な習得技術が課せ
られた。 As is already well known to the general public, the above-mentioned needle and hook gap has a great effect on sewing performance, and the operator is required to acquire advanced skills in assembling and adjusting it.
（考案が解決しようとする問題点）
しかし、上記従来の調節方法では、調節工程で
必要とされる0.05〜0.1mm程度の微調節をなし、
これを維持せしめることは非常に困難であつた。(Problem to be solved by the invention) However, in the above conventional adjustment method, the fine adjustment of about 0.05 to 0.1 mm required in the adjustment process is not possible.
It was extremely difficult to maintain this.
従つて、後工程又はミシンが市場に出荷されて
から、目飛びその他による縫い不良発生という問
題点があつた。本考案では、このような不都合が
発生する懸念が除かれ、微妙に針釡スキマの最適
調整を可能とする装置の開発を計つたものであ
る。 Therefore, there has been a problem in that sewing defects due to skipped stitches or the like occur during post-processing or after the sewing machine is shipped to the market. The present invention aims to eliminate the concern that such inconveniences may occur and to develop a device that makes it possible to delicately and optimally adjust the needle and hook clearance.
（問題点を解決するための手段）
本考案では、上記課題を解決するために次のよ
うな手段を講じた。即ち、
アームと、該アームに対して全方向に微揺動可
能に配設された針棒揺動腕と、該針棒揺動腕に設
けられた左右に貫通する断面コ状溝と、該コ状溝
と平行に前記アームに設けられた穴部と、一方を
該穴部に装嵌され他方を前記コ状溝に嵌通された
偏心棒と、前記針棒揺動腕に上下運動可能に配設
された針棒とよりなることを特徴とするミシンの
針釡スキマ調節装置である。
(Means for solving the problems) In the present invention, the following measures were taken to solve the above problems. That is, an arm, a needle bar swinging arm disposed to be able to swing slightly in all directions with respect to the arm, a U-shaped cross-section groove provided in the needle bar swinging arm passing through from side to side, A hole provided in the arm parallel to the U-shaped groove, an eccentric rod having one end fitted into the hole and the other inserted through the U-shaped groove, and the needle bar swinging arm capable of vertical movement. This is a needle hook clearance adjustment device for a sewing machine, characterized by comprising a needle bar disposed in the needle bar.
（作 用）
偏心軸を左又は右に回転させると、偏心軸の一
方はアームの穴部に装嵌されているため、コ状溝
に嵌通されている偏心軸の他方の軸中心が円周方
向に回動する。これに沿つて揺動腕が前後に僅か
に移動するため、針と中釡糸捕捉部前面との微妙
なスキマ調節がなされ得る。(Function) When the eccentric shaft is rotated to the left or right, one of the eccentric shafts is fitted into the hole in the arm, so the center of the other eccentric shaft, which is fitted into the U-shaped groove, becomes circular. Rotates in the circumferential direction. Since the swinging arm moves slightly back and forth along this movement, delicate clearance adjustment between the needle and the front surface of the thread catching section of the inner hook can be made.
（実施例）
第１図において、１はミシンアームで、２は針
棒揺動腕である。而して、１ａはアーム１に一体
的に形成された凸半球状の取付部で、２ａ（第３
図）は針棒揺動腕２の上部に形成した取付部であ
る。この取付部２ａは、取付部１ａの球径と同一
径の凹半球状をなし、その他面側は取付部２ａの
中心を半径とする凸球状２ｂを形成する。（第３
図参照）。(Embodiment) In FIG. 1, 1 is a sewing machine arm, and 2 is a needle bar swing arm. 1a is a convex hemispherical attachment part integrally formed on arm 1, and 2a (third
Figure) shows a mounting portion formed on the upper part of the needle bar swing arm 2. The mounting portion 2a has a concave hemispherical shape with the same diameter as the spherical diameter of the mounting portion 1a, and the other side forms a convex spherical shape 2b having a radius around the center of the mounting portion 2a. (3rd
(see figure).
３は弾性体の押え板で、先端部に前記針棒揺動
腕２の凸球状２ｂと同一径の凹半球状部３ａが形
成される。この押え板３はアーム１の段違いボス
部１ｂ，１ｃにより、第４図でみられる如き形状
的にアームへ固定される。そしてその凹半球状部
３ａで、アーム１の取付部１ａに対し、針棒揺動
腕２の取付部２ａ，２ｂを回動自在に押着する
（第２図）。 Reference numeral 3 designates a presser plate made of an elastic material, and a concave hemispherical portion 3a having the same diameter as the convex spherical shape 2b of the needle bar swinging arm 2 is formed at the tip thereof. This presser plate 3 is fixed to the arm by the stepped boss portions 1b and 1c of the arm 1 in a shape as shown in FIG. The concave hemispherical portion 3a rotatably presses the attachment portions 2a and 2b of the needle bar swinging arm 2 against the attachment portion 1a of the arm 1 (FIG. 2).
一方、針棒揺動腕２の下端部には、該揺動腕の
運動を案内するコ状案内溝２ｃが、その運動方向
に平行して設けられている。４は偏心軸で、先端
にドライバー溝４ａを有し、その基部４ｂがアー
ム１の取付孔１ｄに嵌入され、ネジ５で止着され
る。 On the other hand, at the lower end of the needle bar swinging arm 2, a U-shaped guide groove 2c for guiding the movement of the swinging arm is provided parallel to the direction of movement thereof. Reference numeral 4 denotes an eccentric shaft, which has a driver groove 4a at its tip, and its base 4b is fitted into the mounting hole 1d of the arm 1 and fixed with a screw 5.
而して、前記針棒揺動腕２の案内溝２ｃが、こ
の偏心軸４に摺動自在に嵌合する（第６図参照）。 Thus, the guide groove 2c of the needle bar swing arm 2 is slidably fitted onto the eccentric shaft 4 (see FIG. 6).
次に第６〜１０図を参照し、本実施例の作用に
ついて述べる。針６と中釡７の糸捕捉部前面７ａ
とのスキマα′（第８図示）が第７図でαに示す如
く大なるときは、糸のループ８より中釡の剣先７
ｂが外側に位置し、目飛びが発生する。これを防
ぐため最適の針釡スキマα′（第８図示）を得るよ
う調節するには、偏心軸４の締付けネジ５をゆる
め、ドライバー溝４ａを利用し、該偏心軸４を右
回動させる。そして偏心量ａ（第６図）の調整で、
針棒揺動腕２に組付けられた針棒９、該針棒に取
付けられた針６を中釡糸捕捉部前面７ａ側へ接近
させ、適正スキマを得る。 Next, the operation of this embodiment will be described with reference to FIGS. 6 to 10. Front surface 7a of thread catcher of needle 6 and inner hook 7
When the gap α' (shown in Figure 8) is large as shown by α in Figure 7, the tip 7 of the inner pot is larger than the loop 8 of the thread.
b is located on the outside, and skipped stitches occur. In order to prevent this and adjust to obtain the optimum needle and hook clearance α' (shown in Figure 8), loosen the tightening screw 5 of the eccentric shaft 4, and use the screwdriver groove 4a to rotate the eccentric shaft 4 clockwise. . Then, by adjusting the eccentricity a (Fig. 6),
The needle bar 9 assembled to the needle bar swinging arm 2 and the needle 6 attached to the needle bar are brought closer to the front surface 7a of the inner hook thread catcher to obtain an appropriate clearance.
適正スキマα′（第８図）を得た位置で、ネジ５
を締付け再び偏心軸４をアーム１に固定する。 At the position where the appropriate clearance α' (Fig. 8) is obtained, screw 5
and fix the eccentric shaft 4 to the arm 1 again.
上記と逆に針釡スキマが小さすぎる場合は、偏
心軸を前記装置時と逆方向に回動調整すればよい
ことは云うまでもない。 It goes without saying that if, contrary to the above, the needle and hook clearance is too small, the eccentric shaft may be rotated in the opposite direction to that of the device.
(1) 従来技術での針棒揺動腕のガイドには、アー
ム側に、上下に貫通し揺動腕側に開口部を有す
る断面コ状溝が設けられ、このコ状溝に揺動腕
が摺動可能に挿通されていた。このため高価な
特殊フライス加工設備を必要とした。
(1) In the guide of the needle bar swinging arm in the conventional technology, a U-shaped groove in cross section is provided on the arm side, passing through it vertically and having an opening on the swinging arm side. was slidably inserted. This required expensive special milling equipment.
しかし、本考案によれば、面板側から加工す
る安価な多軸ボール盤で他の孔加工と同時に行
なえるものである。 However, according to the present invention, it is possible to perform other hole drilling at the same time using an inexpensive multi-spindle drilling machine that processes from the face plate side.
(2) 上記コ状加工は加工の困難さ、及び後工程の
取扱いにより、“コ”の字の寸法が広くなりす
ぎた場合、針棒揺動腕のガタを誘発し、針釡ス
キマの不安定という問題を発生させ目飛びの原
因となつていた。又、逆にコ状溝巾の寸法が狭
くなりすぎた場合は針棒揺動腕の動き不良、縫
模様のクズレという問題をも発生させていた。(2) The above U-shaped processing is difficult to process, and if the dimensions of the U-shape become too wide due to handling in the subsequent process, it may cause backlash in the needle bar swinging arm, resulting in insufficient clearance between the needle and hook. This caused a problem of stability and caused skipped stitches. On the other hand, if the width of the U-shaped groove is too narrow, problems such as poor movement of the swinging arm of the needle bar and distortion of the sewing pattern occur.
しかし、本考案によれば、アームのコ状溝に
該当する偏心棒を丸棒の研磨という単純な加工
方法で、非常に寸法精度の高いものが得られ前
記の問題点が解消される。(3) 塗装時、針棒揺
動腕のガイド、コ状溝部は、アームの外郭部に
位置しているため、特殊な塗装防止具を用いな
ければならず、この防止具の取付、取外しのた
めの工数アツプ、又この防止具の取付不良、形
状不良等によつて、塗装が溝部にはいり、溝部
に対する揺動腕の滑りが悪くなる等の後工程で
のトラブルを誘発していた。本考案の偏心軸取
付部であるアームの穴部は、アーム内部に位置
するため、塗装防止具が不要となり上記の問題
を解消するものである。 However, according to the present invention, an eccentric rod corresponding to the U-shaped groove of the arm can be obtained with extremely high dimensional accuracy by a simple processing method of polishing a round rod, thereby solving the above-mentioned problems. (3) When painting, the guide and U-shaped groove of the needle bar swinging arm are located on the outer part of the arm, so a special paint-preventing device must be used, and installation and removal of this preventive device is difficult. In addition, due to improper installation or poor shape of this preventive device, paint gets into the groove, causing problems in subsequent processes such as poor sliding of the swinging arm against the groove. Since the hole in the arm, which is the eccentric shaft attachment part of the present invention, is located inside the arm, there is no need for a paint preventer, which solves the above problem.
(4) 従来技術では針釡スキマを微調節するときに
は、針棒揺動腕の保持軸を軸方向に移動して行
うか、アームのコ状溝に於いて揺動腕がアーム
の加工溝部と面当りとなつているため、コジレ
を発生し、揺動腕の動き不良、縫模様のクズレ
という問題が発生していた。本考案によれば、
ガイド軸のため線当りとなり上記の問題が解消
される。(4) In the conventional technology, fine adjustment of the needle hook clearance is done by moving the holding shaft of the needle bar swinging arm in the axial direction, or by moving the swinging arm into the machining groove of the arm in the U-shaped groove of the arm. Because the fabric was in contact with the surface, it caused problems such as twisting, poor movement of the swinging arm, and crooked stitching patterns. According to this invention,
Because of the guide shaft, the line hits and the above problem is solved.
(5) 従来技術では針釡スキマ調節のため複雑、且
つ高価な特殊組付及び検査治具を使用せざるを
えず、組付での工数アツプ、又治工具費用のア
ツプを招いている。本考案によれば、上記治具
の簡略化、又は不要という経済的高価が得られ
る。(5) In the prior art, complicated and expensive special assembly and inspection jigs must be used to adjust the needle and hook clearance, resulting in increased assembly man-hours and jig and tool costs. According to the present invention, the above-mentioned jig can be simplified or eliminated, making it economically expensive.
(6) 又、針釡スキマ微調節作業にはミシン組付の
熟練者を配置せざるを得るず要員確保の問題、
人件費アツプの問題を伴つた。本考案によれ
ば、針棒揺動腕が偏心軸の調節により左右方向
には移動しないため、中釡の剣先と針中心との
位置が左右方向にずれない。従つて、糸をすく
う時点でタイミングが狂うこともなく、目飛び
等の問題が起きにくい。(6) In addition, it is necessary to assign a person skilled in assembling a sewing machine to fine-adjust the needle and hook clearance, resulting in the problem of securing personnel.
This was accompanied by the problem of rising labor costs. According to the present invention, since the needle bar swinging arm does not move in the left-right direction by adjusting the eccentric shaft, the position of the tip of the inner hook and the center of the needle does not shift in the left-right direction. Therefore, the timing at the time of scooping the yarn is not out of order, and problems such as skipped stitches are less likely to occur.
(7) ジグザグ縫いを行う場合、本考案では針棒揺
動腕が偏心棒に沿つて左右に揺動させることが
可能となるため、前後方向に針棒揺動腕の位置
を調節したままのの状態でジグサグ縫いをする
ことができる。。すなわち、本考案の調節装置
では、針棒が揺動するようなジグザグ縫いへも
展開することが可能である。(7) When performing zigzag stitching, this invention allows the needle bar swinging arm to swing left and right along the eccentric rod, so the needle bar swinging arm can be sewn while adjusting the position of the needle bar swinging arm in the front and back direction. You can sew jigsag in this condition. . That is, the adjusting device of the present invention can be applied to zigzag stitches in which the needle bar swings.
第１図は本考案装置の部品配列展開図、第２図
は針棒揺動腕のアームへの取付状態を示す断面
図、第３図は第２図の分解図、第４図は針棒揺動
腕の取付状態を上方よりみた図、第５図は第４図
の側面図、第６図は偏心軸と嵌合する針棒揺動腕
の側面図、第７図及び８図は針釡スキマ関係の説
明図、第９図は中釡取付状態断面図、第１０図は
第９図の側面図ある。
１……アーム、１ｄ……取付穴（穴部）、２…
…針棒揺動腕、３……押え板、４……偏心軸、６
……針、７……中釡、８……ループ、９……針
棒。
Figure 1 is a developed view of the parts arrangement of the device of the present invention, Figure 2 is a sectional view showing how the needle bar swing arm is attached to the arm, Figure 3 is an exploded view of Figure 2, and Figure 4 is the needle bar. FIG. 5 is a side view of FIG. 4, FIG. 6 is a side view of the needle bar swinging arm that fits with the eccentric shaft, and FIGS. FIG. 9 is a sectional view of the inner pot installed, and FIG. 10 is a side view of FIG. 9. 1...Arm, 1d...Mounting hole (hole), 2...
...needle bar swing arm, 3...presser plate, 4...eccentric shaft, 6
...Needle, 7...Inner hook, 8...Loop, 9...Needle bar.
Claims (1)
能に配設された針棒揺動腕と、該針棒揺動腕に設
けられた左右に貫通する断面コ状溝と、該コ状溝
と平行に前記アームに設けられた穴部と、一方を
該穴部に装嵌され他方を前記コ状溝に嵌通された
偏心棒と、前記針棒揺動腕に上下運動可能に配設
された針棒とよりなることを特徴とするミシンの
針釡スキマ調節装置。 an arm, a needle bar swinging arm disposed to be able to swing slightly in all directions with respect to the arm, a U-shaped groove in cross section that penetrates left and right provided in the needle bar swinging arm; A hole provided in the arm parallel to the groove, an eccentric rod having one end fitted into the hole and the other end fitted through the U-shaped groove, and arranged vertically movably in the needle bar swinging arm. A needle hook gap adjustment device for a sewing machine, characterized in that it is connected to a needle bar provided therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204532U JPH0333342Y2 (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985204532U JPH0333342Y2 (en) | 1985-12-27 | 1985-12-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62109077U JPS62109077U (en) | 1987-07-11 |
| JPH0333342Y2 true JPH0333342Y2 (en) | 1991-07-15 |
Family
ID=31170536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985204532U Expired JPH0333342Y2 (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0333342Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000154454A (en) * | 1998-11-17 | 2000-06-06 | Brother Ind Ltd | Multi-needle sewing machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237283B2 (en) * | 1981-08-10 | 1987-08-12 | Yukio Kitazawa |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0349653Y2 (en) * | 1985-08-22 | 1991-10-23 |
-
1985
- 1985-12-27 JP JP1985204532U patent/JPH0333342Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237283B2 (en) * | 1981-08-10 | 1987-08-12 | Yukio Kitazawa |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62109077U (en) | 1987-07-11 |
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