JPS6071759A - Balance change-over apparatus - Google Patents

Balance change-over apparatus

Info

Publication number
JPS6071759A
JPS6071759A JP17932783A JP17932783A JPS6071759A JP S6071759 A JPS6071759 A JP S6071759A JP 17932783 A JP17932783 A JP 17932783A JP 17932783 A JP17932783 A JP 17932783A JP S6071759 A JPS6071759 A JP S6071759A
Authority
JP
Japan
Prior art keywords
balance
arm
pin
switching
cam
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.)
Granted
Application number
JP17932783A
Other languages
Japanese (ja)
Other versions
JPH055940B2 (en
Inventor
周三 森本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Janome Corp
Original Assignee
Janome Sewing Machine Co Ltd
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 Janome Sewing Machine Co Ltd filed Critical Janome Sewing Machine Co Ltd
Priority to JP17932783A priority Critical patent/JPS6071759A/en
Publication of JPS6071759A publication Critical patent/JPS6071759A/en
Publication of JPH055940B2 publication Critical patent/JPH055940B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sewing Machines And Sewing (AREA)

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】 (技術分野) 本発明は、大びん切替え装置に係り、特に複数の天びん
を設けた刺しゅう縫ミシンにJ5いて、天びlυの駆動
及び停廿の切り替えを簡単な(M iThでできるよう
にした天びん切替え装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a large bottle switching device, and in particular to a large bottle switching device for a J5 embroidery sewing machine equipped with a plurality of thread take-up levers, which allows easy switching between driving and stopping the thread take-up lυ. This article relates to a balance switching device that can be used with MiTh.

(従来技術) 従来、刺しゅう5mミシンにd3いては、多数の色をも
った刺しゅう糸で縫成づ−るために、複数の21棒と、
複数の天び/υが設【プられていた。、イして色替えを
行うときには、それらを切り替えて使用づるJ:うにな
っていた。しかし、従来の大びん切tつえ装置では、天
びんを切り替えるとさ、ミシンを一時停止させて行なっ
てJ3す、またその停止位相が正確?lSないと切り替
えがてさないという欠点があった。また従来の刺しゅう
縫ミシンでは、縫目間隔を広くする場合、側棒を一時停
止ざ1して刺しゅう枠を適宜な位實まで送り機構によつ
−C送るJ、うにしていたが、この場合、天びんが駆動
しているので、上糸が乱動し、糸切れや日とびが発ち−
【ッ、縫性能が低下づるという欠点があった。
(Prior Art) Conventionally, the 5m embroidery sewing machine d3 has a plurality of 21 rods and 21 rods in order to sew with embroidery threads of many colors.
Multiple balances/υ were set up. , and when changing colors, switch between them. However, with the conventional large bottle cutting stick device, when switching the balance, the sewing machine is temporarily stopped and the sewing machine is stopped. The drawback was that switching was not possible without IS. In addition, in conventional embroidery sewing machines, when increasing the stitch spacing, the side bar was temporarily stopped and the embroidery frame was fed to the feed mechanism to the appropriate position. If the thread take-up is being driven, the upper thread may fluctuate, causing thread breakage or skipping.
[There was a drawback that sewing performance deteriorated.

(目的) 本発明(J、−1記した従来技術の欠点を除去づるため
になされたものであって、ぞの目的とするところ【よ、
大びんの基部J、り突出した突出部に植設された天びん
ビンに係脱自在な凹部を形成した切凸え腕を21棒係1
112装胃の作動に連動して作動さゼることによって、
1棒が停止しているときは、天びんし1?止しているよ
うにすることであり、′これによって上糸の乱動を防止
し、縫性能を向上させることである。また他の目的は、
ミシン運転中でも天びんの切開えがでさるJ、うにづる
ことであり、更にまた天びんのけ正位41]が不正確で
も切替えが容易にできるJ:うにすることである。
(Objective) The present invention (J.-1) has been made to eliminate the drawbacks of the prior art described in
At the base J of the large bottle, a cut-out protruding arm with a concave part that can be freely engaged and detached from the balance bottle is embedded in the protruding part of the large bottle.
By operating in conjunction with the operation of the 112 stomach filling,
When bar 1 is stopped, the balance is 1? This is to prevent the upper thread from fluctuating and improve sewing performance. In addition, other purposes are
Even when the sewing machine is running, the thread take-up can be easily cut, and even if the thread take-up position is incorrect, it can be easily switched.

(実施例) 以下本発明を図面に示づ実施例に基いてび2明する。第
1図に示づものは、本発明に係る天びん切替え装置1を
装荷食シた刺しゅう縫ミシン2の縦断面図であり、該刺
しゅうお!ミシンには、天び/υ切台え′KiQ lに
関連して別棒係It!装置3か装着されている。
(Examples) The present invention will be explained below based on examples shown in the drawings. What is shown in FIG. 1 is a longitudinal sectional view of an embroidery sewing machine 2 loaded with a balance switching device 1 according to the present invention. The sewing machine has a separate rod attached to it! Device 3 is installed.

まず該(1梓係111に装置について説明する。該針棒
係脱装置は、主Q’lll 5と、案内軸6と、スライ
ダ8と、係脱部月9と、揺動部材10と、針棒12と、
21棒抱さ13とヲb;^えている。
First, the device will be explained to the person in charge 111 of the needle bar. needle bar 12;
21 sticks are holding 13.

主@5は、(幾枠15に回動自在に支承されて+13す
、該主軸に固着されたねじ歯BU16は、該主軸に直交
して機枠15に回動自在に支承された駆動軸18に固着
されたねじ歯車19に噛合りるようになっている。案内
軸6(j、主軸5と直交して鉛直方向にぼ枠15に固む
されている。
The main shaft (+13) is rotatably supported by the frame 15, and the threaded tooth BU16 fixed to the main shaft is a drive shaft which is orthogonal to the main shaft and rotatably supported by the machine frame 15. The guide shaft 6 (j) is fixed to the frame 15 in a vertical direction perpendicular to the main shaft 5.

スライダ8は、案内@6に摺動自在に嵌挿されており、
該スライダの基部8aに直交して植設された軸部8bは
、主軸5の一端に固着されたクランク20に一端を小首
されたクランクロッド21の他の一端に10: lil
’iされている。係n;2部月9は、スライダ8に枢軸
23にJ、って枢着されCおり、該係脱部材の上部には
、1頃斜部9aが形成さ4℃、該傾斜部に連続して四部
91〕が形成されている。係ub部拐9の下端には、係
合ビン25が植y2されCいる。また係合部材9は、侶
lll1123に巻装され/、=ねじりばね26によっ
て反助削方向に回転するJ:うに付勢され°Cいる。
The slider 8 is slidably inserted into the guide @6,
A shaft portion 8b, which is installed orthogonally to the base portion 8a of the slider, is attached to the other end of a crank rod 21, which has one end bent to a crank 20 fixed to one end of the main shaft 5.
'i have been. The second part 9 is pivotally connected to the slider 8 by a pivot 23, and an inclined part 9a is formed at the upper part of the engaging/disengaging member. 4 parts 91] are formed. An engaging pin 25 is installed at the lower end of the engaging UB section 9. Further, the engaging member 9 is wound around the member 1123 and is biased by the torsion spring 26 to rotate in the anti-cutting direction.

揺動部材10は、コの字状に形成されており、第2図及
び第3図に示すように、中火部が案内軸6に嵌挿され−
Cいる。]ヱ動部vJ10の一端に植設されたビン28
と、11枠15に固着されたクランク腕軸30に枢着さ
れた直角状のクランク腕31の一端に植設されたビン3
2には、連結ロッド33の両0BHHに形成された円弧
部33aが大々挿入されている。揺動部材10の他端に
形成された側壁部10aのIH端には、係1112部材
9の係合ビン25が圧接するようになっている。
The swinging member 10 is formed in a U-shape, and as shown in FIGS. 2 and 3, the medium heating part is fitted into the guide shaft 6.
There is C. ] Bottle 28 installed at one end of the moving part vJ10
and a bottle 3 implanted at one end of a right-angled crank arm 31 pivotally connected to a crank arm shaft 30 fixed to the frame 15.
2, the arcuate portions 33a formed at both 0BHH of the connecting rod 33 are largely inserted. The engagement pin 25 of the engagement member 9 is brought into pressure contact with the IH end of the side wall portion 10a formed at the other end of the swinging member 10.

また揺動部材10は、該揺動部材の上端と機枠15どの
間に案内軸6に巻装されたねじりばね35によつr 、
第1図に(13いて上方からみて反時n1方向に回転づ
るようにイ」勢されている。またクランク腕31は、ク
ランク腕軸30に巻装されたねじりばね36にJ:って
矢印への方向に回転するようにイJ gAされている。
Further, the swinging member 10 is rotated by a torsion spring 35 wound around the guide shaft 6 between the upper end of the swinging member and the machine frame 15.
In FIG. 1, the crank arm 31 is biased so as to rotate in the counterclockwise n1 direction when viewed from above.The crank arm 31 is attached to a torsion spring 36 wound around the crank arm shaft 30, as indicated by the arrow J. It is set so that it rotates in the direction of .

4捧12は、第1図に43いて紙面に対して垂′直方向
に摺動づ−る可動は枠15aに固着された一対のプツシ
J−38,39に膿動白イLに支承されており、該釦枠
は、案内@6と平行に配置されている。
The movable part 12, which is shown at 43 in FIG. The button frame is arranged parallel to the guide @6.

側棒抱さ13は、21捧12に1)(挿され、什めねじ
40にJ、って該21棒に固るされ(いる。止めねじ4
0と可動機枠15aに固着された1めねし12どの間に
引張ばね43が張架されており1.洩引張ばねにJ:つ
C釧棒抱さ13は、ブツシユ13ε3の下面に副棒12
に圧入された止め輪44に圧接りるJ:うになっている
。また第1図にJ3いて、f+、111抱き13の右端
に形成された突部13aは、1糸膜部材9の凹部9bに
係合づるにうになっている。
The side bar holder 13 is inserted into the 21 bar 12 (1) (1) (1) (inserted into the 21 bar (1)) and fixed (J) into the 21 bar (21 bar) by the set screw (40).
A tension spring 43 is stretched between 1.0 and 1. The leakage tension spring is J:C.
The retaining ring 44 is press-fitted into contact with the retaining ring 44. Further, the protrusion 13a formed at the right end of the f+, 111 holder 13 at J3 in FIG.

次に天びlυ切替え[!1について説明りる。Next, switch the balance lυ [! I will explain about 1.

法人ひん切替え装置は、天びん)Jム51と、天ひlν
駆動腕52と、切替え腕53と、天びん5/’lとを備
えている。
The corporate balance switching device is for balance) Jmu51 and balance 1ν.
It includes a drive arm 52, a switching arm 53, and a balance 5/'l.

天びんカム511;I、駆動軸18に固着されてJ3す
、第1図において、法人びんカムの表面には漏カム51
aが形成されている。該溝カムIJ:、穴なる半径をも
って形成されている。天びん駆動腕52の基部は、枢軸
5Gによって機枠15に枢着されており、法人びん駆動
腕の中間部には植設された駆動ピン58は、溝カム51
aに嵌入している。
Take-up cam 511: I, fixed to drive shaft 18, J3;
a is formed. The grooved cam IJ: is formed with a radius of a hole. The base of the balance drive arm 52 is pivotally connected to the machine frame 15 by a pivot 5G, and a drive pin 58 implanted in the middle of the corporate bottle drive arm is connected to the groove cam 51.
It is inserted into a.

切替え腕53は、−”’ G;iが人びん駆動腕52の
先端にビン60にJ:って枢着されて113つ、他の−
ON イ”J近には凹部53aが形成されている。該凹
部には、切替えll1li!53の上面に連通する壁部
53bが形成されている。また切替え腕53は、ビン6
oに巻装されノζねじつばね3Gよりばね力の弱いねじ
りぽね62ににってu、旨!方向に回転Jるにうに付勢
されており、切開え腕53の上面は、クランク腕31の
他の一端に植設されたビン64に圧接Jるにうになって
いる。
The switching arm 53 is pivotally connected to the bottle 60 at the tip of the bottle driving arm 52, and the other -
A recessed portion 53a is formed near ON I"J. A wall portion 53b communicating with the upper surface of the switching ll1li! 53 is formed in the recessed portion. Also, the switching arm 53
It is wrapped around the torsion bone 62, which has a weaker spring force than the ζ screw spring 3G. The upper surface of the incising arm 53 is pressed against a bottle 64 implanted in the other end of the crank arm 31.

大びん54は、基部が可動鵬枠15aに天び/V支え軸
66によって枢着されており、法人びん支え軸に巻装さ
れたねじりばね68にJ:って時語方向に回転するにう
にイ」勢されている。また天びん5/3は、法人びんに
形成された突起部5/laが、法人びんの上死点時に可
動1幾枠15aに固着された止めねじ69に当接づるこ
とによって回転運動を、規制されている。天びん54の
切替え腕53側に突出した突出部54b先端には、人び
luピン70が植設されている。法人びんビンは、切替
え胱53の凹部53aに1α:入するJ:うになっ(お
り、また天びん54で上死点で切替え腕53の壁部53
bに係合づるようになっている。
The large bottle 54 has its base pivotally attached to the movable frame 15a by a balance/V support shaft 66, and is rotated in the J: direction by a torsion spring 68 wound around the corporate bottle support shaft. Sea urchins are popular. In addition, the balance 5/3 restricts rotational movement by a protrusion 5/la formed on the corporate bottle coming into contact with a set screw 69 fixed to the movable frame 15a at the top dead center of the corporate bottle. has been done. A pin 70 is implanted at the tip of the protrusion 54b of the balance 54 that protrudes toward the switching arm 53 side. The corporate bottle is inserted into the recess 53a of the switching arm 53 by 1α, and the wall 53 of the switching arm 53 is placed at the top dead center with the balance 54.
b.

なお第1図において、72は刺しゅう縫押えて、釦枠抱
き13と、釦枠12の下端に固るされた釧留め74との
間の釦枠12に嵌挿されており、刺しゅう心!押え72
の頂面と11棒抱さ13の下面との間に21棒12に巻
装された圧縮ばね76によって一ト方にfJ勢されCい
る。
In FIG. 1, the embroidery presser 72 is inserted into the button frame 12 between the button frame holder 13 and the hook clasp 74 secured to the lower end of the button frame 12, and is used as an embroidery center! Presser foot 72
A compression spring 76 wound around the 21 rod 12 forces the 21 rod 12 between the top surface of the 11 rod support 13 and the lower surface of the 11 rod support 13 in one direction.

本考案は、上記のように構成されてJ3す、以下その作
用について説明する。第1図に示づ釦枠の離〃り2状態
において、駆動@18が回転して、すし歯車19.16
を介して主軸5が回転し、更にクランク20及びクラン
クロッド21を介してスライダ8が上下方向に摺動した
場合、係1112部月9は実線に示す状態にあるので、
該係脱部材の凹部9b、!l:剣棒側棒13の突部13
aとは係合づることがない。従ってa!棒12は、上死
点で停止している。この場合、係脱部材9は、釦枠抱さ
13に当−接しない位置に待(幾しているので、係脱部
材9が上下動しCもコ)1捧抱さ13に当接することな
く騒音が発生しない。
The present invention is constructed as described above, and its operation will be described below. In the second state where the button frame is released as shown in FIG.
When the main shaft 5 rotates via the crank 20 and the slider 8 slides vertically via the crank 20 and the crank rod 21, the engagement 1112 part 9 is in the state shown by the solid line.
Concave portion 9b of the engaging/disengaging member! l: Protrusion 13 of sword stick side stick 13
There is no engagement with a. Therefore a! The rod 12 is stopped at top dead center. In this case, the engaging/disengaging member 9 is in a position where it does not come into contact with the button frame retainer 13 (because it is in the same position, the engaging/disengaging member 9 moves up and down and C also stops). No noise is generated.

また切替え腕53の上面IJI 、クランク腕31のビ
ン64によって押圧されてJ3す、切替え腕53の凹部
53aど天びん54の大びんビン70とは係合していな
いので、天び/υカム51が回転して大びん駆動腕52
が揺動しても、天びlυ54は実線に示り位置、即ち上
死点で17止している。
Also, the upper surface IJI of the switching arm 53 is pressed by the pin 64 of the crank arm 31, and the recess 53a of the switching arm 53 does not engage with the large bottle pin 70 of the balance 54, so the balance/υ cam 51 rotates and the large bottle drive arm 52
Even though the balance lυ54 is oscillated, the balance lυ54 remains at the position shown by the solid line, that is, at the top dead center.

このJ:うに針11’j 12及び入び/v 5 ’I
 h’岨脱し−Cいる状態から係合状態にリ−るに(j
、クランク腕31をソレノイド(図示せず)等の動力に
よつCねじりばね3Gのばね圧に抗して矢印Bの方向に
一定角度回転さUるど、連結ロッド33が矢印Cの方向
に移すJし、揺動部(A10が案内軸6を中心としC矢
印「の方向に回転づるa覆ると係脱部材9の係合ピン2
5が矢印「の方向に移動し、該係脱部11は、第1図に
、13いて仮想線に示づ位置まで回転、づ゛る。
This J: sea urchin needle 11'j 12 and entry/v 5'I
From h' to the engaged state (j
When the crank arm 31 is rotated by a certain angle in the direction of arrow B against the spring pressure of the torsion spring 3G by the power of a solenoid (not shown), etc., the connecting rod 33 is rotated in the direction of arrow C. When the swinging part (A10 rotates around the guide shaft 6 in the direction of the arrow C), the engaging pin 2 of the engaging/disengaging member 9
5 moves in the direction of the arrow ``, and the engaging/disengaging portion 11 rotates to the position shown by the imaginary line at 13 in FIG.

この状態でスライダ8に伴って係脱部IJ9が上下動す
ると、該係脱部材の上死点(=J近近回凹部9)と針棒
抱さ13の突部13aとか係合し、釦枠12は、スライ
ダ8と一体的に上下動づるようになる。
In this state, when the engaging/disengaging portion IJ9 moves up and down with the slider 8, the top dead center (=J near-near concave portion 9) of the engaging/disengaging member engages with the protrusion 13a of the needle bar holder 13, and the button is pressed. The frame 12 can move up and down integrally with the slider 8.

また切替え腕53は、該切開え腕の上面からクランク腕
31のビン64がmn;2づるのC1ねじりばね62の
ばねノJによってK Ht /’J向に回転し、人ひん
54の天びんビン70と切替え腕53の凹部53aどが
係合するJ、うになる。ししこの状rトで、天びん駆動
腕52が、天びんカム51によって最右方位置にあった
場合、切替え腕53 b最61ノ位置にあり、凹部53
aと天びんビン70と(、L直ちに係合しないが、天び
ん駆動腕52が天びんカム51ににり最左方位置に移動
り°ると、天びlυビン70が凹部53aと係合づる1
、従って切開えlj″I!53の凹部53aと天びlシ
571の人び/Vビン70とは、vI度的にラフであっ
ても容易に係合づることができる。そして天びlυ54
は、天び/υ駆動腕52の揺動に伴って天びん支え軸6
Gを中心どして揺動するようになる。再び1棒12及び
天びん54を離脱状態にづるに(よ、クランク腕31を
矢印Δの方向に回転させればよい。
Further, the switching arm 53 rotates in the K Ht /'J direction by the spring J of the C1 torsion spring 62 of mn; 70 and the recess 53a of the switching arm 53 engage with each other. When the balance drive arm 52 is in the rightmost position by the balance cam 51 in the shape of a strip, the switching arm 53b is at the most 61st position, and the recess 53
a and the balance pin 70 (, L do not engage immediately, but when the balance drive arm 52 is mounted on the balance cam 51 and moved to the leftmost position, the balance lυ pin 70 engages with the recess 53a).
Therefore, the recess 53a of the incision lj''I!53 and the person/V bottle 70 of the balance lυ571 can be easily engaged even if it is rough in terms of vI degree.
is the balance support shaft 6 as the balance/υ drive arm 52 swings.
It begins to oscillate around G. To return the first rod 12 and the balance 54 to the disengaged state again, just rotate the crank arm 31 in the direction of the arrow Δ.

また複数の4it 4’a\12及び天びlυ54を設
けた刺しゅう縫ミシン2の場合には、可動機枠15aを
摺動さUるだIJで、釦枠12及び天びん54の係脱が
行われ、特に別途係脱装置が不要どなる。
In addition, in the case of an embroidery sewing machine 2 equipped with a plurality of 4'a\12 and a take-up lever 54, the button frame 12 and the take-up lever 54 are engaged and disengaged by sliding the movable machine frame 15a. In particular, there is no need for a separate locking/unlocking device.

(効果) 本発明は、上記のように描成され、作用するものであり
、天ひ/υの基部より突出した突出部に植設された天び
/υピンに係812自在な四部を形成したり替え腕が、
針棒係脱装置の作動に1Iri動しく作動づるj、うに
なっているので、釦枠か停止しているときは、天びんも
停止し、この結果、上糸の乱動を防止することができ、
縫’19.’ l1lfiが向上する効果がある。また
ミシン運転中でもクランク腕を作動ざUれば、天びんの
切替えかてさ、更にまた天び/vの停止位相が不正確で
も切替えが容易にできるという利点がある。
(Effects) The present invention is depicted and operates as described above, and forms four parts that can be freely connected to the balance/υ pin implanted in the protrusion that protrudes from the base of the balance/υ. The arm that can be changed is
Since the needle bar locking and disengaging device is operated in a dynamic manner, when the button frame is stopped, the thread take-up also stops, and as a result, it is possible to prevent the upper thread from fluctuating. ,
Sewing '19. 'It has the effect of improving l1lfi. Another advantage is that even when the sewing machine is running, by simply operating the crank arm, the balance can be easily switched, and even if the stop phase of the balance/v is inaccurate, it can be easily switched.

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

図面(J本発明の実施例に係り、第1図は本発明に係る
天びん切7−)え1ム票を装着した刺しゅうも1ミシン
の縦断面図、第2図及び第3図は係脱部材と揺動部材と
の作動関係を示し、第2図は係)j;2部材が釦枠抱き
に係合しているときの平面図、第3図は係脱部材が釦枠
抱きから離脱し−Cいるときの平面図である。 1は天び/V切替え装置、3は釦枠係脱菰[,15は機
枠、18は駆動軸、31はクランク腕、51は大びんカ
ム、51aは溝カム、52は入びん駆動腕、53は切替
え腕、53aは凹部、54は天びん、54bは突出部、
58は駆動ピン、62.68はねじりばね、70は天び
んビン′Cある。 特ム′[出願人 蛇の目ミシン工業株式会d第2図 第3図 25 10゜
Drawings (Regarding an embodiment of the present invention, Figure 1 is a take-up lever 7- according to the present invention); Figures 1 and 3 are longitudinal cross-sectional views of an embroidery machine equipped with a stamp; The operating relationship between the members and the swinging member is shown; Fig. 2 is a plan view when the two members are engaged with the button frame holder, and Fig. 3 is a plan view when the engaging/disengaging member is detached from the button frame holder. FIG. 1 is a balance/V switching device, 3 is a button frame retainer, 15 is a machine frame, 18 is a drive shaft, 31 is a crank arm, 51 is a large bottle cam, 51a is a groove cam, and 52 is a bottle drive arm. , 53 is a switching arm, 53a is a recess, 54 is a balance, 54b is a protrusion,
58 is a drive pin, 62 and 68 are torsion springs, and 70 is a balance pin 'C. Tokumu' [Applicant Janome Sewing Machine Industry Co., Ltd. d Figure 2 Figure 3 25 10゜

Claims (1)

【特許請求の範囲】[Claims] は枠に回動自在に支承された駆動軸と、該駆動軸に固着
され溝カムを形成した天びんカムと、基部を前記機枠に
枢竹され該基部にり突出した突出部に天びんビンを植設
しかつ上死点側にねじりばねによって回転でるようにf
」勢された天びんと、基部を前記];(枠に枢るされ中
間部に植設された駆動ピンを前記天びんカムの満カムに
係合さゼた天び/ν駆動腕と、法人び/υ駆動腕の先0
11:に一端を枢着され、池の一端1号近に1)0記天
びんビンが係合りる凹部を形成しかつ法人びんピン側に
ねじりばねににって回転−リ”るJ、うにイ」勢された
り替え腕と、該切替え腕を揺動ざL!該切替え腕の凹部
と前記天びんビンとの係112を行うJ、うにしたクラ
ンク腕とを設けたことを特徴どする天びlυ切替え装@
A drive shaft is rotatably supported on a frame, a balance cam is fixed to the drive shaft and forms a grooved cam, and a base is pivoted to the machine frame, and a balance pin is attached to a protrusion protruding from the base. F so that it can be planted and rotated by a torsion spring toward the top dead center
(The balance is pivoted on the frame and the drive pin installed in the middle part is engaged with the full cam of the balance cam.) /υ drive arm tip 0
11: One end is pivotally connected to the pond, near one end of the pond 1) a concave part is formed in which the balance pin of No. 0 is engaged, and it is rotated by a torsion spring on the corporate bottle pin side; When the sea urchin is forced to switch arms, swing the switching arms L! A balance lυ switching device is characterized in that it is provided with a crank arm that engages the recessed portion of the switching arm and the balance pin 112.
.
JP17932783A 1983-09-29 1983-09-29 Balance change-over apparatus Granted JPS6071759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17932783A JPS6071759A (en) 1983-09-29 1983-09-29 Balance change-over apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17932783A JPS6071759A (en) 1983-09-29 1983-09-29 Balance change-over apparatus

Publications (2)

Publication Number Publication Date
JPS6071759A true JPS6071759A (en) 1985-04-23
JPH055940B2 JPH055940B2 (en) 1993-01-25

Family

ID=16063897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17932783A Granted JPS6071759A (en) 1983-09-29 1983-09-29 Balance change-over apparatus

Country Status (1)

Country Link
JP (1) JPS6071759A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258697A (en) * 1985-12-03 1987-11-11 宮本技研有限会社 Balance apparatus in multineedle sewing machine
JPH02295591A (en) * 1989-05-09 1990-12-06 Barudan Co Ltd Balance driving mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5649061A (en) * 1979-09-26 1981-05-02 Pfaff Ind Masch Embroidering machine having yarn exchange apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5649061A (en) * 1979-09-26 1981-05-02 Pfaff Ind Masch Embroidering machine having yarn exchange apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62258697A (en) * 1985-12-03 1987-11-11 宮本技研有限会社 Balance apparatus in multineedle sewing machine
JPH0211277B2 (en) * 1985-12-03 1990-03-13 Myamoto Kk
JPH02295591A (en) * 1989-05-09 1990-12-06 Barudan Co Ltd Balance driving mechanism

Also Published As

Publication number Publication date
JPH055940B2 (en) 1993-01-25

Similar Documents

Publication Publication Date Title
CN101778971A (en) Single thread lock stitch hand stitch formation method and machine
JPS6071759A (en) Balance change-over apparatus
CN100363549C (en) Sewing machine
JPS607894A (en) Module structure of sewing machine head end
US3139051A (en) Sewing machine universal feed arrangement
US3844234A (en) Work clamp feeding mechanism for sewing machines
US4708070A (en) Looper assembly for a two thread bag closing sewing machine and two thread looping process for closing bags
US4399761A (en) Resilient bobbin thread pull-off member for lockstitch sewing machine
US332207A (en) Half to william m
JPH03143482A (en) Upper thread guide device of sewing machine having thread cutter
JPS58192574A (en) Apparatus for reversing fabric sending direction of sewing machine
US780028A (en) Rotary-hook sewing-machine.
US306713A (en) baebee
JPS59135091A (en) Zigzag sewing machine
US61270A (en) Improvement in sewing-machines
US279464A (en) yernay
GB2148334A (en) Looper assembly for a two thread sewing machine and two thread looping process
US1544484A (en) Embroidery-couching machine
US111447A (en) Improvement in sewing-machines
US196210A (en) Improvement in take-up mechanisms for sewing-machines
US16436A (en) Improvement in sewing-machines
US300458A (en) follett
JPS6257591A (en) Automatic yarn passing type sewing machine
US109443A (en) Improvement in sewing-machines
US378645A (en) arnold