JPS6121023Y2 - - Google Patents
Info
- Publication number
- JPS6121023Y2 JPS6121023Y2 JP3468382U JP3468382U JPS6121023Y2 JP S6121023 Y2 JPS6121023 Y2 JP S6121023Y2 JP 3468382 U JP3468382 U JP 3468382U JP 3468382 U JP3468382 U JP 3468382U JP S6121023 Y2 JPS6121023 Y2 JP S6121023Y2
- Authority
- JP
- Japan
- Prior art keywords
- main shaft
- control lever
- control
- rotation
- 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
Links
- 238000009958 sewing Methods 0.000 claims description 31
- 239000004744 fabric Substances 0.000 description 9
- 230000035515 penetration Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
この考案は、ミシン主軸に同期して減速回転
し、制御レバーを係合してミシン主軸と原動部と
を連動状態に維持する外周に真円部及び真円部に
連続しミシン主軸を停止状態に維持する凹部とを
形成した制御カムをサイクルミシンの制御装置に
関し、特に制御レバーが制御カムの凹部から真円
部に移行する所定の針数の縫目形成間はミシン主
軸を低速駆動するようにしたサイクルミシンの制
御装置に関するものである。[Detailed description of the invention] This invention has a perfect circular part and a perfect circular part on the outer periphery that rotate at a reduced speed in synchronization with the main shaft of the sewing machine and engage the control lever to maintain the interlocking state between the main shaft and the driving part of the sewing machine. Regarding a control device for a cycle sewing machine, the control cam continuously forms a concave portion that maintains the main shaft of the sewing machine in a stopped state, especially during the formation of a predetermined number of stitches when the control lever moves from the concave portion of the control cam to the perfect circle portion. The present invention relates to a control device for a cycle sewing machine that drives the main shaft of the sewing machine at a low speed.
従来、高速駆動するサイクルミシンにおいて
は、主軸を停止状態から短時間で高速度に立ち上
がらせると、主軸に連動する各作動機構に負荷や
衝撃が加わつて各部を損傷したり摩耗を早めてミ
シンの寿命を短かくしたり、縫始めに糸抜けする
ため、起動時における所定針数の縫目形成間は主
軸を低速駆動させて上記の立ち上がり時の衝撃を
緩衝するようにしている。 Conventionally, in high-speed cycle sewing machines, when the main shaft is brought up to high speed from a stopped state in a short period of time, loads and shocks are applied to each operating mechanism linked to the main shaft, damaging various parts or accelerating wear, which can cause the sewing machine to fail. In order to shorten the life of the sewing machine and prevent the thread from falling out at the beginning of sewing, the main shaft is driven at a low speed during the formation of a predetermined number of stitches at startup to buffer the shock at the start-up.
このための構成としては、例えば本出願人の特
許出願に係る特公昭54−2129号、特公昭56−
13480号公報等に示されるものが知られ、これに
よれば第1図に示すように主軸に対して一定の減
速比で反時計方向に回軸する制御カム10の外周
に真円部11と、真円部11に連続し真円部より
も小径の低位部12,14と、両低位部に連続し
て陥する凹部13とを設けて、主軸1と原動部
(図示しない)とに関連配置したクラツチ手段を
操作可能とした制御レバー7のピン7aが真円部
11に係合するときは主軸1を高速回転させ、ピ
ン7aが低位部12,14に係合するときは主軸
1を低速回転させ、ピン7aが凹部13に係合す
るときは主軸1と原動部との連動を遮断するよう
にしている。即ち、サイクルミシンは不作動状態
においては制御レバー7のピン7aを凹部13に
係合させており、ミシンを起動させるときには制
御レバー7を時計方向(第1図)に移動させ、ク
ラツチ手段の遮断状態が解除されて主軸1が回転
を始めると制御カム10が反時計方向に回転する
ので、制御レバー7のピン7aは先ず、手前の低
位部14に係合してミシンは低速駆動状態とな
り、制御カム10の回転により制御レバー7のピ
ン7aが低位部14から傾斜部14aに接しなが
ら真円部11に乗り上げるとミシンは高速駆動状
態となり、従つて低位部14の角度範囲でミシン
起動時の低速駆動期間が設定されることになる。 Examples of configurations for this purpose include, for example, Japanese Patent Publication No. 54-2129 and Japanese Patent Publication No. 56-2012 related to patent applications filed by the present applicant.
13480 is known, and according to this, as shown in FIG. 1, a control cam 10 that rotates counterclockwise with a constant reduction ratio with respect to the main shaft has a true circular portion 11 on the outer periphery. , a lower part 12, 14 which is continuous with the perfect circular part 11 and has a smaller diameter than the true circular part, and a recessed part 13 which is continuously recessed in both the lower parts are provided to connect the main shaft 1 and the driving part (not shown). When the pin 7a of the control lever 7 that enables the operation of the disposed clutch means engages with the circular portion 11, the main shaft 1 is rotated at high speed, and when the pin 7a engages with the lower portions 12 and 14, the main shaft 1 is rotated. When the pin 7a engages with the recess 13 by rotating at a low speed, the interlocking movement between the main shaft 1 and the driving section is cut off. That is, when the cycle sewing machine is inactive, the pin 7a of the control lever 7 is engaged with the recess 13, and when the sewing machine is started, the control lever 7 is moved clockwise (FIG. 1) to shut off the clutch means. When the state is released and the main shaft 1 starts rotating, the control cam 10 rotates counterclockwise, so the pin 7a of the control lever 7 first engages with the front lower part 14, and the sewing machine enters a low-speed driving state. When the pin 7a of the control lever 7 rides on the circular part 11 from the lower part 14 while contacting the inclined part 14a due to the rotation of the control cam 10, the sewing machine enters a high-speed driving state. A low-speed drive period will be set.
ところが、布の厚さにより針が布を貫通すると
きの貫通抵抗の大きさが異なり、厚い布地を縫う
ときには針の貫通抵抗が大きいため各作動機構へ
の衝突を減少させるためには上記低位部14の角
度範囲で設定される低速駆動期間を長くする必要
があり、逆に薄い布地を縫う場合には針の貫通抵
抗が小さいため抵速駆動期間を短かく設定でき
る。 However, the amount of penetration resistance when the needle penetrates the fabric varies depending on the thickness of the fabric, and when sewing thick fabric, the penetration resistance of the needle is large, so in order to reduce collisions with each operating mechanism, it is necessary to It is necessary to lengthen the low-speed drive period set in the angle range of 14. On the other hand, when sewing thin cloth, the low-speed drive period can be set short because the penetration resistance of the needle is small.
このため従来においては被縫物の厚さに応じ
て、異なつた低部の角度範囲を有する制御カムを
取り付けなくてはならず、制御カムの交換作業が
面倒になるとともに複数の制御カムを用意しなく
てはならないのでコストが増大してしまうという
欠点があつた。 For this reason, in the past, it was necessary to install control cams with different angle ranges for the lower part depending on the thickness of the material to be sewn, which made replacing the control cams troublesome and required multiple control cams. The disadvantage is that the cost increases because it has to be done.
また、第2図において低位部14と真円部10
の間の傾斜部14aに制御レバー7のピン7aが
係合しているときには、クラツチ4が、切り換る
ときに一旦遮断されるため、主軸1は空転状態と
なり、この空転状態と針が布に貫入するタイミン
グが一致すると主軸1は何ら駆動力を受けていな
い状態にあるので、針の貫通抵抗によつて主軸1
が停止することがあり、このためクラツチ手段を
手動操作してミシンの駆動を両開させるという面
倒な操作が必要となるため、これを防止するには
上記空転状態と針が布に貫入するタイミングとの
一致をずらせる操作が必要となるが、このときも
従来においては制御カムを変換するより他に手段
がなかつた。この考案は、これらの欠点を除去す
ることを目的とする。 In addition, in FIG.
When the pin 7a of the control lever 7 is engaged with the inclined portion 14a between When the needles penetrate at the same timing, the main shaft 1 is not receiving any driving force, so the main shaft 1 is moved by the penetration resistance of the needle.
The sewing machine may stop, and this requires the troublesome operation of manually operating the clutch means to open both sides of the sewing machine drive.To prevent this, the above-mentioned idling state and the timing when the needle penetrates the fabric are necessary. It is necessary to perform an operation to shift the coincidence between the two, but in the past, the only way to do this was to change the control cam. This invention aims to eliminate these drawbacks.
以下図面によりこの考案の実施例を説明する
と、第1図の機構は特公昭54−2129号、特公昭56
−13480号公報に記載されたものに基づくもので
あり、機枠に回動可能に支持した主軸1のミシン
後部突端には、停止溝2a(第3〜5図)を形成
した停止体2及び原動体(図示しない)に連動し
て回動し且つ軸線方向へ移動可能で常には第1図
右方への弾性力を受けるプーリー3並びにプーリ
ー3の回転を主軸1に伝達・遮断可能としたクラ
ツチ4とを支持する。 The embodiment of this invention will be explained below with reference to the drawings.
This is based on the one described in Japanese Patent No. 13480, and a stop body 2 and a stop groove 2a (Figs. 3 to 5) are formed at the rear tip of the main shaft 1 rotatably supported on the machine frame. The pulley 3 rotates in conjunction with a driving body (not shown) and is movable in the axial direction, and is always subject to an elastic force to the right in FIG. 1, and the rotation of the pulley 3 can be transmitted to and interrupted by the main shaft 1. Clutch 4 is supported.
機枠後部面に支持し上端に係止爪38aを設け
た制御体38は、特公昭54−2129号公報に記載さ
れる構成によりクラツチ4に関連配置され、プー
リー4と主軸1との連動を遮断する遮断位置(第
5図)と、プーリー4の回転を減速して主軸1に
伝達し主軸1を低速回転させる低速位置(第4
図)と、プーリー4の回転を減速することなく主
軸1に伝達し主軸1を高速回転させる高速位置
(第3図)とに移動可能とする。 A control body 38 supported on the rear surface of the machine frame and provided with a locking claw 38a at the upper end is arranged in relation to the clutch 4 according to the configuration described in Japanese Patent Publication No. 54-2129, and controls the interlocking of the pulley 4 and the main shaft 1. There is a cutoff position (Fig. 5) where the rotation of the pulley 4 is decelerated and transmitted to the main shaft 1, and the main shaft 1 is rotated at a low speed (the fourth position).
(Fig. 3) and a high-speed position (Fig. 3) where the rotation of the pulley 4 is transmitted to the main shaft 1 without deceleration and the main shaft 1 is rotated at high speed.
中心部を支軸6により機枠前面に一固定軸線を
中心に揺動可能に支持した略く状状の制御レバー
7は右端(第1図)を制御体38に連結して常に
は反時計方向(第1図)への作用力を受け、制御
体38を遮断位置に保持する第一位置、及び第一
位置よりも時計方向に回動し制御体38を低速位
置に保持する第二位置及び第二位置より時計方向
に回動し制御体38を高速位置に保持する第三位
置とに移動可能とする。一端を支軸6に回動可能
に支持した操作レバー8は中間部を制御レバー7
に係合させ、他端には電磁ソレノイド(図示しな
い)及びペダル(図示しない)を連結する。 A roughly wedge-shaped control lever 7, whose center is supported swingably about a fixed axis on the front of the machine frame by a support shaft 6, is connected at its right end (Fig. 1) to a control body 38, and is always rotated counterclockwise. A first position in which the control body 38 is held in the cutoff position by receiving an acting force in the direction (FIG. 1), and a second position in which the control body 38 is rotated clockwise from the first position and held in the low speed position. and a third position in which the controller 38 is rotated clockwise from the second position to maintain the control body 38 at a high speed position. An operating lever 8 whose one end is rotatably supported on a support shaft 6 has an intermediate portion attached to a control lever 7.
The other end is connected to an electromagnetic solenoid (not shown) and a pedal (not shown).
機枠の前面において、支軸6に平行する一固定
軸線を中心に、主軸1に連動して一定の減速比で
反時計方向に回転する送りカム9を固定し、その
同軸上に制御カム21(第6〜8図)を固定す
る。制御カム21の外周面には制御レバー7のピ
ン7aを係合させ、その外周面には制御レバー7
を第三位置に保持する真円部11と、真円部11
に連続し制御レバーを第一位置に保持する凹部1
3とを設ける。尚、制御カム21の起動側の低位
部15は制御カム10(第1図)の低位部14よ
りも十分広い角度範囲に亘つて形成されている。 At the front of the machine frame, a feed cam 9 that rotates counterclockwise at a fixed reduction ratio in conjunction with the main shaft 1 about a fixed axis parallel to the support shaft 6 is fixed, and a control cam 21 is mounted on the same axis. (Figures 6-8) are fixed. The pin 7a of the control lever 7 is engaged with the outer peripheral surface of the control cam 21, and the control lever 7 is connected to the outer peripheral surface of the control cam 21.
a perfectly circular part 11 that holds the part in the third position;
a recess 1 for holding the control lever in the first position;
3 will be provided. Note that the lower part 15 on the activation side of the control cam 21 is formed over a sufficiently wider angular range than the lower part 14 of the control cam 10 (FIG. 1).
また、第6図に示すように、低位部15の面か
ら起立し制御カム21の回転方向に平行する壁面
15bを形成する切欠部15aを設ける。 Further, as shown in FIG. 6, a notch 15a is provided that stands up from the surface of the lower portion 15 and forms a wall surface 15b parallel to the rotational direction of the control cam 21.
起動側の低位部15に対応する回転角範囲内に
おける制御カム21の側面にはねじ孔20を穿設
し、上面を真円部11に一致する高さとし且つ壁
面15bに摺動可能とした切欠面16bを設けた
調節体16には、制御カム21の周方向に沿い延
長しねじ孔20に連通する長孔18を形成した取
付部17を形成し、調節体16を低位部15の上
面に沿つて制御カム21の周方向に沿い移動可能
とするとともに、長孔18に連通してねじ孔20
にねじ19を螺合させることにより調節体16を
低位部15上に固定する。 A screw hole 20 is bored in the side surface of the control cam 21 within the rotational angle range corresponding to the lower part 15 on the starting side, and a notch is formed so that the upper surface has a height that matches the perfect circular part 11 and is slidable on the wall surface 15b. The adjustment body 16 provided with the surface 16b has a mounting portion 17 formed with a long hole 18 that extends along the circumferential direction of the control cam 21 and communicates with the screw hole 20, and the adjustment body 16 is attached to the upper surface of the lower portion 15. The control cam 21 is movable along the circumferential direction of the control cam 21, and the screw hole 20 is connected to the elongated hole 18.
The adjusting body 16 is fixed on the lower part 15 by screwing the screw 19 into the lower part 15.
この考案は以上の構成であり、次に作用を説明
する。 This invention has the above structure, and its operation will be explained next.
先ず、厚い布地を縫う場合にはねじ19を緩
め、起動側の低位部15の端縁15c(第6〜8
図)から調節体16の前端面16cまでの回動角
が、この布の厚さに対して針が貫通する十分な駆
動速度を与えるだけの低速駆動期間を設定し且つ
制御レバー7のピン7aが前端面16cに係合す
るときの主軸1の空転時期が針が布に貫入する時
期と一致しないように調節体16を低位部15の
上面に移つて移動させ(第8図参照)、長孔18
を連通させて両びねじ19をねじ孔20に螺着さ
せることにより調節体16を第8図に示す位置に
固定する。 First, when sewing thick fabric, loosen the screw 19 and tighten the edge 15c (6th to 8th) of the lower part 15 on the starting side.
The rotation angle from FIG. The adjusting body 16 is moved to the upper surface of the lower part 15 so that the timing of idle rotation of the main shaft 1 when the needle engages with the front end surface 16c does not coincide with the timing when the needle penetrates the cloth (see Fig. 8), and the length Hole 18
The adjusting body 16 is fixed in the position shown in FIG. 8 by connecting the double-sided screws 19 to the screw holes 20.
こうして、ペダル(図示しない)を踏み込む
と、制御レバー7は操作レバー8を介して第二位
置まで時計方向に移動させられ、ピン7aが凹部
13から離脱するとともに制御体38が低速位置
(第4図)に移動して主軸1が回転し始めるの
で、制御カム21は反時計方向に回動してピン7
aが起動側の低位部15に係合しミシンは低速駆
動に保たれる。 In this way, when the pedal (not shown) is depressed, the control lever 7 is moved clockwise via the operating lever 8 to the second position, the pin 7a is disengaged from the recess 13, and the control body 38 is moved to the low speed position (fourth position). As the main shaft 1 begins to rotate, the control cam 21 rotates counterclockwise and the pin 7
a engages with the lower part 15 on the starting side, and the sewing machine is maintained at low speed.
低速駆動の継続によつて制御カム21が反時計
方向に回動し続けると制御レバー7のピン7aは
調節体16の前端面16cに当接し、制御カム2
1がさらに回動することによりピン7aは前端面
16cを登上して上面16aに係合するようにな
るので、制御レバー7が第三位置へ移動して制御
体5が高速位置(第5図)に切換えられ、主軸1
は高速回転となる。ところが調節体16の前端縁
16cに至るまでの低位部15の回動角範囲は第
8図に示すように十分に広いた、被縫物が厚い布
地であり、従つて針棒に加わる抵抗が大きくても
制御レバー7のピン7aが調節体16の前端縁1
6cに当接した時点では軸1が十分な回転速度を
得ているので、この抵速回転から高速回転への切
換でミシンの各作動機構に加わる衝撃力は大きく
ない。 When the control cam 21 continues to rotate counterclockwise due to continued low-speed driving, the pin 7a of the control lever 7 comes into contact with the front end surface 16c of the adjustment body 16, and the control cam 2
1 rotates further, the pin 7a climbs up the front end surface 16c and comes to engage with the upper surface 16a, so the control lever 7 moves to the third position and the control body 5 moves to the high speed position (fifth position). (Fig.) and spindle 1
rotates at high speed. However, the rotation angle range of the lower portion 15 up to the front edge 16c of the adjuster 16 is sufficiently wide as shown in FIG. Even if the pin 7a of the control lever 7 is large, the front edge 1 of the adjustment body 16
Since the shaft 1 has attained a sufficient rotational speed when it comes into contact with the shaft 6c, the impact force applied to each operating mechanism of the sewing machine during this changeover from low-speed rotation to high-speed rotation is not large.
そして、制御レバー7のピン7aが真円部11
に係合した状態で制御カム21がほぼ一回転する
と、ピン7a真円部11から停止側の低位部12
に係合するようになるのでミシンは高速駆動に切
り換えられ、さらに制御カム21が回動するとピ
ン7aが凹部に係合して、これにより制御レバー
7を介して制御体5が遮断位置(第3図)に移動
するのでミシンは停止し一サイクルの縫製が終了
する。 Then, the pin 7a of the control lever 7
When the control cam 21 rotates approximately one revolution while being engaged with the
When the control cam 21 rotates, the pin 7a engages with the recess, and the control body 5 is moved to the cutoff position (first position) via the control lever 7. 3), the sewing machine stops and one cycle of sewing is completed.
以上のように、この考案によれば起動後の低速
駆動期間に対応する制御カムの凹部の上面に、制
御カムの円周方向に沿つて移動可能に調節体を取
りつけて、この調節体の移動により起動後の低速
駆動期間を調節可能としたので、厚地の布等の、
針に対する抵抗力の大きい被縫物を縫う場合には
上記の低速駆動期間を第8図のように長く設定し
て、主軸が十分な速度を得た後に高速駆動に切り
換えるようにしてミシンの作動機構に対する衝撃
力を軽減することができるとともに、薄地の布等
の、針に対する抵抗力が小さい被縫物を縫う場合
には第7図のように低速駆動期間を短かく設定し
早く高速駆動に切換えるようにして一サイクルに
要する時間を短縮し作業能率を向上させることも
できる。 As described above, according to this invention, an adjusting body is attached to the upper surface of the recess of the control cam corresponding to the low-speed drive period after startup so as to be movable along the circumferential direction of the control cam, and the adjusting body is moved. Since the low-speed drive period after startup can be adjusted, it is possible to
When sewing a material that has a high resistance to the needle, set the low-speed drive period as long as shown in Figure 8, and then switch to high-speed drive after the main shaft has achieved sufficient speed to operate the sewing machine. In addition to reducing the impact force on the mechanism, when sewing materials with low resistance to the needle, such as thin cloth, the low-speed drive period can be set short and the high-speed drive can be started quickly, as shown in Figure 7. By switching, the time required for one cycle can be shortened and work efficiency can be improved.
また、一枚の制御カムで任意の低速駆動期間を
設定できるので、従来のように複数枚の制御カム
を用意する必要がなくなるから制御カムの交換作
業が不要となるとともに、コストを低減できると
いう効果がある。 In addition, since any low-speed drive period can be set with a single control cam, there is no need to prepare multiple control cams as in the past, eliminating the need to replace control cams and reducing costs. effective.
また前記したように、主軸の空転時期と針が布
に貫通する時期が一致し従つてミシンの駆動が停
止してしまうような場合にも、調節体をわずかに
移動させるだけでそれらの両時期が一致しないよ
うにして駆動の停止できるので、調節操作が著し
く容易である。 Furthermore, as mentioned above, even if the time when the spindle idles coincides with the time when the needle penetrates the fabric, and the sewing machine stops driving, it is possible to change the timing between both times by simply moving the adjustment body slightly. Since the drive can be stopped so that the two do not match, the adjustment operation is extremely easy.
第1図はサイクルミシンの制御装置の正面図、
第2図は従来の制御カムの凹部を示す図、第3,
4,5図は停止機構の右側面図、第6図は本願の
制御カムの要部分解斜視図、第7,8図は制御カ
ムの調節状態を示す図である。
2,3,4,5……クラツチ手段、7……制御
レバー、11……真円部、15……低位部、13
……凹部、21……制御カム、16……調節体。
Figure 1 is a front view of the control device of a cycle sewing machine.
Figure 2 is a diagram showing the concave portion of a conventional control cam;
4 and 5 are right side views of the stop mechanism, FIG. 6 is an exploded perspective view of essential parts of the control cam of the present invention, and FIGS. 7 and 8 are views showing the adjustment state of the control cam. 2, 3, 4, 5...Clutch means, 7...Control lever, 11...Perfect circular portion, 15...Low portion, 13
... recess, 21 ... control cam, 16 ... adjustment body.
Claims (1)
転を主軸に伝達する高速状態及び原動部の回転を
高速状態よりも低速とするように減速して主軸に
伝達する低速状態並びに原動体と主軸との連動を
遮断する遮断状態とに切換可能に原動部と主軸と
に介在させたクラツチ手段と、 クラツチ機構を遮断状態とする第一位置及びク
ラツチ機構を低速状態とする第二位置及びクラツ
チ機構を高速状態とする第三位置とに移動可能に
クラツチ機構に関連配置した制御レバーと、 ミシン主軸に対して一定の減速比により同期し
て自身の中心線の周囲に回動するように機枠に支
持し、制御レバーを第三位置に保持するように回
転中心から等距離の外周に形成した真円部と、制
御レバーを第一位置に保持するように外周から回
転中心方向へ凹んだ凹部と、制御レバーを第二位
置に保持するように真円部と凹部とに連結し両者
の中間の中心距離に形成した低位部とを設けた制
御カム、とをもつサイクルミシンにおいて、 制御レバーが第二位置から第三位置へ移行する
ように、外周を制御カムの真円部と同一の中心距
離とし低位部に沿つて周方向へ移動係止可能とし
た調節体を設けたことを特徴とするサイクルミシ
ンの制御装置。[Claims for Utility Model Registration] A high-speed state where the rotation of the driving part is transmitted to the main shaft so as to drive the main shaft of the sewing machine at high speed, and a state where the rotation of the driving part is decelerated and transmitted to the main shaft so that the rotation is slower than the high-speed state. a clutch means interposed between the driving part and the main shaft so as to be switchable between a low speed state and a cutoff state for cutting off interlocking between the drive body and the main shaft; a first position for putting the clutch mechanism in the cutoff state; A control lever is arranged in relation to the clutch mechanism so as to be movable between a second position in which the clutch mechanism is in a high speed state and a third position in which the clutch mechanism is in a high speed state. It is supported on the machine frame so as to rotate, and has a perfect circular part formed on the outer periphery equidistant from the center of rotation to hold the control lever in the third position, and a perfect circular part formed on the outer periphery to hold the control lever in the first position. a control cam having a concave portion recessed toward the center of rotation; and a low portion connected to the circular portion and the concave portion and formed at an intermediate center distance between the two so as to hold the control lever in the second position. In a cycle sewing machine, an adjusting body whose outer periphery has the same center distance as the true circular part of the control cam and can be moved and locked in the circumferential direction along the lower part so that the control lever moves from the second position to the third position. A control device for a cycle sewing machine, characterized in that it is provided with.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3468382U JPS58138576U (en) | 1982-03-12 | 1982-03-12 | Cycle sewing machine control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3468382U JPS58138576U (en) | 1982-03-12 | 1982-03-12 | Cycle sewing machine control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58138576U JPS58138576U (en) | 1983-09-17 |
JPS6121023Y2 true JPS6121023Y2 (en) | 1986-06-24 |
Family
ID=30046173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3468382U Granted JPS58138576U (en) | 1982-03-12 | 1982-03-12 | Cycle sewing machine control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58138576U (en) |
-
1982
- 1982-03-12 JP JP3468382U patent/JPS58138576U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58138576U (en) | 1983-09-17 |
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