JPH05197A - Differential feed regulation mechanism for sewing machine - Google Patents
Differential feed regulation mechanism for sewing machineInfo
- Publication number
- JPH05197A JPH05197A JP3177255A JP17725591A JPH05197A JP H05197 A JPH05197 A JP H05197A JP 3177255 A JP3177255 A JP 3177255A JP 17725591 A JP17725591 A JP 17725591A JP H05197 A JPH05197 A JP H05197A
- Authority
- JP
- Japan
- Prior art keywords
- feed
- sub
- main
- link
- arm
- 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
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 19
- 230000008844 regulatory mechanism Effects 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 230000033001 locomotion Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 206010012239 Delusion Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 231100000868 delusion Toxicity 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はミシンの差動送り調節機
構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a differential feed adjusting mechanism for a sewing machine.
【０００２】[0002]
【従来の技術】従来のミシンの差動送り調節機構は実願
昭６３−１３６６９８(実開平２−５９７８１)に示され
る如く主送り台の運動伝達機構と共に運動させられてい
る為、主送り台の送り発生機構にかかる負荷が大きなも
のになって、主送り台の送り運動発生箇所の回転トルク
が大きくなり過ぎており、又該機構の関連部品の精度を
特に向上させねばならない点を有していた。2. Description of the Related Art Since a conventional differential feed adjusting mechanism of a sewing machine is moved together with a motion transmitting mechanism of a main feed table as shown in Japanese Patent Application No. 63-136698 (Actual Publication No. 2-59781), the main feed table is moved. The load applied to the feed generating mechanism is too large, the rotational torque at the feed motion generating portion of the main feed table becomes too large, and the precision of the related parts of the mechanism must be particularly improved. Was there.
【０００３】[0003]
【発明が解決しようとする課題】本発明はミシンの差動
送り機構の構造を簡単にすると共に差動送り調節機構を
独立させて該差動送り調節機構を静止させておくことに
より差動送り機構の運動部品の質量を軽量化しトルクの
縮小化を計り、主送り台への過大負荷の排除を図ること
を目的とするものである。SUMMARY OF THE INVENTION The present invention simplifies the structure of the differential feed mechanism of the sewing machine and separates the differential feed adjusting mechanism to keep the differential feed adjusting mechanism stationary. The purpose is to reduce the weight of the moving parts of the mechanism, reduce the torque, and eliminate the excessive load on the main feed table.
【０００４】[0004]
【課題を解決するための手段】本発明はミシンの差動送
り調節機構を主送り歯を固着する主送り台及び副送り歯
を固着する副送り台から独立化し、併せて副送り台も主
送り台から独立させて水平運動をなし得るように構成す
ることにより、主送り台にかかる負荷の軽減を図り、主
送り台の構造を簡単にするものである。SUMMARY OF THE INVENTION The present invention separates a differential feed adjusting mechanism of a sewing machine from a main feed table to which a main feed tooth is fixed and a sub feed table to which a sub feed tooth is fixed. By configuring so as to be able to perform horizontal movement independently of the feed bar, the load on the main feed bar is reduced and the structure of the main feed bar is simplified.
【０００５】[0005]
【作用】本発明はミシン機枠に回転自在に支持される駆
動軸と、該駆動軸に固着された主送りカムに一端を嵌装
する主送り水平リンクの他端に連結する主送りリンク
と、前記駆動軸に固着された副送りカムに一端を嵌装す
る副送り水平リンクの他端部に連結する副送りリンク
と、前記ミシン機枠に支持される軸部と、該軸部に揺動
自在に支持され前記主送りリンクの一端と連結する主送
り揺動腕と、該主送り揺動腕の上端に一端を連結し先端
に主送り歯を固着し、中央部に角駒を摺動自在に保持す
る主送り台と、前記軸部に揺動自在に支持され前記副送
りリンクの一端と連結する副送り揺動腕と、該副送り揺
動腕の上端に副送り台リンクを介して連結し、先端に副
送り歯を固着し中央部を前記主送り台に設けた押え板と
主送り台に保持される角駒上面との間で摺動自在に挟持
される副送り台と、前記主送り水平リンクの他端に連結
する主送り調節リンクと、該主送り調節リンクに主送り
伝達腕を介して連結の送り腕と、該送り腕を回動せしめ
る送り量調節操作部と、前記副送り水平リンクの他端に
連結する副送り調節リンクと、該副送り調節リンクに副
送り調節腕及び副送り伝達腕等を介して連結の変換腕
と、該変換腕の長穴内に嵌装のピンの位置を変える差動
調節操作部と、変換腕と前記送り腕とを連結の連結ロッ
ドとで構成し、副送り台を主送り台の水平運動から独立
化する共に差動送り調節機構を送り台の運動から独立化
した構成にすることにより送り台の負荷の軽減を図るこ
とを特徴とするものである。According to the present invention, a drive shaft rotatably supported by a machine frame and a main feed link connected to the other end of a main feed horizontal link having one end fitted to a main feed cam fixed to the drive shaft. A sub-feed link connecting one end to a sub-feed cam fixed to the drive shaft, the sub-feed link being connected to the other end of the sub-feed horizontal link; a shaft portion supported by the sewing machine frame; A main feed swing arm that is movably supported and is connected to one end of the main feed link, and one end is connected to the upper end of the main feed swing arm, the main feed dog is fixed to the tip, and a square piece is slid at the center. A main feed table that is movably held, a sub feed swing arm that is swingably supported by the shaft portion and that is connected to one end of the sub feed link, and a sub feed link is provided on the upper end of the sub feed swing arm. Is connected to the main feed table with the auxiliary feed dog fixed to the tip and the central portion is held by the holding plate and the main feed table. A sub-feed base slidably sandwiched between the upper surface of the bridge, a main-feed adjustment link connected to the other end of the main-feed horizontal link, and a main-feed transmission arm connected to the main-feed adjustment link. A feed arm, a feed amount adjusting operation section for rotating the feed arm, a sub-feed adjusting link connected to the other end of the sub-feed horizontal link, and a sub-feed adjusting arm and a sub-feed transmitting arm for the sub-feed adjusting link. And the like, a conversion arm that is connected via the same, a differential adjustment operation unit that changes the position of a pin that is fitted in the elongated hole of the conversion arm, and a connecting rod that connects the conversion arm and the feed arm. The present invention is characterized in that the feed table is made independent of the horizontal movement of the main feed table and the differential feed adjusting mechanism is made independent of the movement of the feed table to reduce the load on the feed table.
【０００６】[0006]
【実施例】本発明の一実施例の構成を図面に従って以下
に説明する。ミシン機枠１はアーム機枠２及びベッド機
枠３からなり、該ベッド機枠にはモータ(図示せず)によ
り駆動される駆動軸４が支持され、該駆動軸の機枠外に
プーリ５の一部が臨ましめられている。前記アーム機枠
２には針棒６が上下動可能に支持され前記駆動軸４によ
り伝達軸を介して運動せしめられる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of one embodiment of the present invention will be described below with reference to the drawings. The sewing machine frame 1 is composed of an arm frame 2 and a bed frame 3, a drive shaft 4 driven by a motor (not shown) is supported on the bed frame, and a pulley 5 is provided outside the frame of the drive shaft. Some are exposed. A needle bar 6 is supported on the arm machine frame 2 so as to be vertically movable, and is moved by the drive shaft 4 via a transmission shaft.
【０００７】アーム機枠２の前面には複数の糸調子器
(７,７…)が配設され、該糸調子器はアーム機枠２後方
に配設の糸立台８に装着される糸棒の糸に張力を調節可
能に付与している。アーム機枠の前面下方にはルーパカ
バー９が開閉自在に枢着されている。A plurality of thread tension devices are provided on the front surface of the arm machine frame 2.
(7, 7 ...) Are arranged, and the thread tensioner adjustably applies tension to the thread of the thread rod mounted on the thread stand 8 arranged behind the arm machine frame 2. A looper cover 9 is pivotably attached to the lower part of the front surface of the arm machine frame so as to be openable and closable.
【０００８】前記ベッド機枠３には上面に針板１０が水
平に配設され、該針板の周辺は回動し得るベッドカバー
１１にて包囲されている。針板１０には前後方向に長く
穿設される送り歯窓１２が設けられ、該送り歯窓には主
送り歯１３と副送り歯１４とが臨ましめられている。A needle plate 10 is horizontally arranged on the upper surface of the bed machine frame 3, and the periphery of the needle plate is surrounded by a rotatable bed cover 11. The needle plate 10 is provided with a feed dog window 12 formed long in the front-rear direction, and a main feed dog 13 and a sub feed dog 14 are exposed in the feed dog window.
【０００９】次に差動送り機構について詳細に述べる。
前記駆動軸４には主送りカム１５及び副送りカム１６が
夫々の対向する端面１５a,１６aを適宜間隔を置いてネ
ジ止めされている。主送りカム１５には主送り水平リン
ク１７の一端１８が、副送りカム１６には副送り水平リ
ンク１９の一端２０が夫々嵌装されている。Next, the differential feed mechanism will be described in detail.
A main feed cam 15 and a sub feed cam 16 are fixed to the drive shaft 4 by screwing opposing end surfaces 15a and 16a at appropriate intervals. One end 18 of a main feed horizontal link 17 is fitted to the main feed cam 15, and one end 20 of a sub feed horizontal link 19 is fitted to the sub feed cam 16.
【００１０】前記主送り歯１３を前端部に固着した主送
り台２１は後端部２２を主送り揺動腕２３の上端部２４
にピン軸２５を介して連結し支持され、略中央の垂直部
に窓部２６が設けられ、該窓部に後述の角駒が前後方向
の摺動が可能に嵌装されている。前記主送り揺動腕２３
は副送り揺動腕２７と共に前記ベッド機枠３に固着され
た揺動腕台２８の両側に植立の支持板２９、２９に水平
状に設けられた軸部３０に揺動自在に支持されている。The main feed table 21 having the main feed dog 13 fixed to the front end has a rear end 22 and an upper end 24 of a main feed swing arm 23.
Is connected to and supported by a pin shaft 25, a window portion 26 is provided in a substantially central vertical portion, and a square piece described later is fitted in the window portion so as to be slidable in the front-rear direction. The main feed swing arm 23
And a sub-feed swing arm 27 and a swing arm base 28 fixed to the bed machine frame 3 are swingably supported by shaft portions 30 horizontally provided on support plates 29, 29 that are erected on both sides. ing.
【００１１】前記副送り揺動腕２７の上端３１には副送
り台リンク３２の一端部３３がピン軸３４を介して連結
されている。前記副送り歯１４を前端部に固着した副送
り台３５は後端部３６を前記副送り台リンク３２の他端
３７にピン軸３８を介して連結されている。前記主送り
台２１の窓部２６内には幅広で窓部より突出部を有する
角駒３９が前後方向の摺動が可能に嵌装されている。An upper end 31 of the auxiliary feed swing arm 27 is connected to an end 33 of an auxiliary feed link 32 via a pin shaft 34. The auxiliary feed 35 having the auxiliary feed teeth 14 fixed to the front end has a rear end 36 connected to the other end 37 of the auxiliary feed link 32 via a pin shaft 38. In the window portion 26 of the main feed table 21, a square piece 39 having a wide width and a projecting portion from the window portion is fitted so as to be slidable in the front-rear direction.
【００１２】前記副送り台３５は主送り台２１の上面に
固着された押え板４０の下面と窓部より突出の前記角駒
３９の上面４１との間にて前後方向の摺動が可能な如く
挟持されている。The sub-feed table 35 is slidable in the front-rear direction between the lower surface of the holding plate 40 fixed to the upper surface of the main feed table 21 and the upper surface 41 of the square piece 39 protruding from the window. It is pinched like this.
【００１３】角駒３９は中央に穴部４２が形成され、該
穴部は前記副送りカム１６に一体的に設けられた上下送
りカム４３に嵌装されている。角駒３９の両側面には前
記駆動軸４上に嵌挿の座板４４、４４が配設され、該座
板に突設の突起部４５、４５を角駒３９に穿設の窪み部
４６、４６に嵌合して回転止されたものが、前記主送り
カム１５の端面１５aと副送りカム１６の端面１６aとの
間に装着されている。A hole 42 is formed in the center of the square piece 39, and the hole is fitted to an up-and-down feed cam 43 provided integrally with the sub-feed cam 16. Seat plates 44, 44 fitted and inserted on the drive shaft 4 are disposed on both side surfaces of the square piece 39, and projecting portions 45, 45 projecting from the seat plate are formed in the square piece 39. , 46, which are engaged with and stopped from rotating, are mounted between the end surface 15a of the main feed cam 15 and the end surface 16a of the auxiliary feed cam 16.
【００１４】前記主送りカム１５の外周に一端１８を嵌
装の主送り水平リンク１７の他端４７には主送りリンク
４８の一端４９がピン５１を介して連結されており、主
送りリンク４８の他端５０は前記主送り揺動腕２３の下
端部５２とピン５３にて連結されている。前記ピン５１
上には主送り調節リンク５４の一端５５が回動可能に支
持されている。One end 49 of a main feed link 48 is connected via a pin 51 to the other end 47 of the main feed horizontal link 17 in which one end 18 is fitted on the outer circumference of the main feed cam 15 and the main feed link 48. The other end 50 is connected to the lower end portion 52 of the main feed swing arm 23 by a pin 53. The pin 51
One end 55 of the main feed adjusting link 54 is rotatably supported on the upper side.
【００１５】又前記副送りカム１６に一端２０を嵌装の
副送り水平リンク１９の他端５６には副送りリンク５７
の一端５８がピン５９を介して連結されており、副送り
リンク５７の他端６０は前記副送り揺動腕２７の下端部
６１とピン６２にて連結されている。前記ピン５９上に
は副送り調節リンク６３の一端６４が回動可能に支持さ
れている。Further, one end 20 is fitted on the sub-feed cam 16 and the other end 56 of the sub-feed horizontal link 19 is fitted to the sub-feed link 57.
One end 58 of the auxiliary feed link 57 is connected via a pin 59, and the other end 60 of the auxiliary feed link 57 is connected to a lower end portion 61 of the auxiliary feed swing arm 27 by a pin 62. One end 64 of the auxiliary feed adjusting link 63 is rotatably supported on the pin 59.
【００１６】次に差動送り機構の調節装置について図４
を参照して述べる。Ｆは前記差動送り機構の全体を示す
ものであり、Ａは前記主送り調節リンク５４の他端部６
５と主送り伝達腕６６の先端部６７との連結軸線を示
し、Ｂは前記副送り調節リンク６３の他端部６８と副送
り調節腕６９の先端部７０との連結軸線を示している。Next, the adjusting device of the differential feed mechanism is shown in FIG.
Will be described with reference to. F indicates the whole of the differential feed mechanism, and A indicates the other end portion 6 of the main feed adjustment link 54.
5 shows the connecting axis line between the tip end portion 67 of the main feed transmission arm 66, and B shows the connecting axis line between the other end portion 68 of the auxiliary feed adjusting link 63 and the tip end portion 70 of the auxiliary feed adjusting arm 69.
【００１７】前記主送り伝達腕６６は基端がミシン機枠
１に回転自在に支持された軸部７１の一端に固着されて
おり、該軸部の他端には送り腕７２が固着されている。
該送り腕は一端７３に送り量調節操作部９０に連結の送
りロッド７４が連結されており、他端７５に差動調節機
構に連結の連結ロッド７６の一端が連結している。The main feed transmission arm 66 has a base end fixed to one end of a shaft portion 71 rotatably supported by the sewing machine frame 1, and a feed arm 72 fixed to the other end of the shaft portion. There is.
The feed arm has a feed rod 74 connected to the feed amount adjusting operation portion 90 at one end 73 and one end of a connecting rod 76 connected to the differential adjustment mechanism at the other end 75.
【００１８】差動調節機構は差動調節操作部９１に連結
の差動ロッド７７が下端に植設のピン７９をミシン機枠
１に固定された案内板７８に形成の溝部にて運動を規制
されており、差動ロッド７７のピン７９には下端にて前
記連結ロッド７６の他端と連結し、上端にて前記副送り
調節腕６９に連結の変換腕８０に形成された長穴８１が
摺動自在に嵌装されており、前記送り量調節操作部９０
が操作される場合、変換腕８０は前記ピン７９を中心に
矢印Ｃ−Ｄ方向に回動せしめられる。In the differential adjusting mechanism, a differential rod 77 connected to a differential adjusting operation portion 91 has a pin 79 planted at the lower end thereof, and a guide plate 78 fixed to the sewing machine frame 1 restricts movement in a groove formed in the guide plate 78. The pin 79 of the differential rod 77 has a long hole 81 formed in the conversion arm 80 which is connected to the other end of the connecting rod 76 at the lower end and is connected to the sub-feed adjusting arm 69 at the upper end. It is slidably fitted and has the feed amount adjusting operation section 90.
Is operated, the conversion arm 80 is rotated around the pin 79 in the direction of arrow CD.
【００１９】前記変換腕８０の上端に植設のピン８２は
ミシン機枠１に回転自在に支持される軸８３の一端に固
着された副送り伝達腕８４の上端部８５と連結してい
る。軸８３の他端に固着された副送り連結腕８６は先端
部８７にて前記副送り調節腕６９の他端部８８と副送り
連結ロッド８９を介して連結している。A pin 82 implanted at the upper end of the conversion arm 80 is connected to an upper end portion 85 of a sub-feed transmission arm 84 fixed to one end of a shaft 83 rotatably supported by the sewing machine frame 1. The auxiliary feed connecting arm 86 fixed to the other end of the shaft 83 is connected to the other end 88 of the auxiliary feed adjusting arm 69 via the auxiliary feed connecting rod 89 at the tip portion 87.
【００２０】図５に示す差動送り調節機構の全体図を参
照して以下に細部について述べる。ミシン機枠１に固定
された調節機構台１aには送りカム軸９２が支持され、
該送りカム軸には前記送り量調節操作部９０の回動に連
動する送りカム９３が設けられており、該送りカムには
外周にローレート等の如き刻まれた細溝が形成された円
板９４が一体的に設けられており、該円板の外周に対し
前記調節機構台１aに設けられた板ばね９５の一端が押
圧せしめられ、送りカム９３の妄動が防止されている。The details will be described below with reference to the overall view of the differential feed adjusting mechanism shown in FIG. A feed cam shaft 92 is supported on the adjusting mechanism base 1a fixed to the sewing machine frame 1,
The feed cam shaft is provided with a feed cam 93 which is interlocked with the rotation of the feed amount adjusting operation portion 90, and the feed cam has a disc formed with a fine groove such as a low rate formed on the outer periphery thereof. 94 is integrally provided, and one end of a leaf spring 95 provided on the adjusting mechanism base 1a is pressed against the outer circumference of the disc to prevent the feed cam 93 from deviating.
【００２１】前記調節機構台１aには軸部９６に支持さ
れ一端に調節可能に固着され先端を前記送りカム９３の
外周に当接する従動子９７を備えて揺動可能に支持され
た送り調節腕９８が設けられており、該送り調節腕の他
端９９は前記送りロッド７４に連結されると共に前記従
動子９７を送りカム９３に押圧するばね１００が装着さ
れている。The adjusting mechanism base 1a is swingably supported by a follower 97 which is supported by a shaft portion 96 and is adjustably fixed to one end, and whose tip abuts the outer circumference of the feed cam 93. 98 is provided, the other end 99 of the feed adjusting arm is connected to the feed rod 74, and a spring 100 for pressing the follower 97 against the feed cam 93 is mounted.
【００２２】更に、前記調節機構台１aには差動カム軸
１０１が支持され、該差動カム軸には前記差動調節操作
部９１の回動に連動する差動カム１０２が設けられてお
り、該差動カムには外周にローレット等の如き刻まれた
細溝が形成された円板１０３が一体的に設けられてお
り、該円板の外周に対し前記調節機構台１aに設けられ
た板ばね１０４の一端が押圧せしめられ、差動カム１０
２の妄動が防止されている。Further, a differential cam shaft 101 is supported on the adjusting mechanism base 1a, and a differential cam 102 which is interlocked with the rotation of the differential adjusting operation portion 91 is provided on the differential cam shaft. The differential cam is integrally provided with a disc 103 having fine grooves such as knurls formed on the outer periphery, and the adjustment mechanism base 1a is provided on the outer periphery of the disc. One end of the leaf spring 104 is pressed so that the differential cam 10
Delusion of 2 is prevented.
【００２３】更に前記調節機構台１aには軸部１０５に
支持され、一端に調節可能に固着され、先端を前記差動
カム１０２の外周に当接する従動子１０６を備えて揺動
可能に支持された差動調節腕１０７が設けられており、
該差動調節腕の先端は前記差動ロッド７７に連結されて
おり、該差動ロッドには引張ばね１０８が装着され、該
引張ばねは前記従動子１０６の先端を差動カム１０２の
外周に押圧するよう作用している。Further, the adjusting mechanism base 1a is swingably supported by a shaft portion 105, which is adjustably fixed to one end thereof and is provided with a follower 106 whose tip is in contact with the outer periphery of the differential cam 102. A differential adjustment arm 107 is provided,
The tip of the differential adjustment arm is connected to the differential rod 77, and a tension spring 108 is attached to the differential rod, and the tension spring causes the tip of the follower 106 to move to the outer circumference of the differential cam 102. Acts to press.
【００２４】次に本発明装置の他の実施例の構成を図６
を参照して以下に述べる。Ｆは前述の通り、差動送り機
構を示し、Ａは差動送り機構の主送り調節リンク５４の
他端部６５の軸線を示し、Ｂは同じく差動送り機構の副
送り調節リンク６３の他端部６８の軸線を示している。Next, the configuration of another embodiment of the device of the present invention is shown in FIG.
Will be described below with reference to. As described above, F indicates the differential feed mechanism, A indicates the axis of the other end portion 65 of the main feed adjustment link 54 of the differential feed mechanism, and B indicates the other auxiliary feed adjustment link 63 of the differential feed mechanism. The axis of the end 68 is shown.
【００２５】送り調節体１０９は両端の折曲部１１０、
１１１に夫々設けられたピン軸１１２及び１１３を中心
に回動可能にミシン機枠１に支持されており、一方の折
曲部１１１の先端に設けられたピン１１４を介して前記
主送り調節リンク５４の他端部６５と連結されている。The feed adjuster 109 includes bent portions 110 at both ends.
The main feed adjusting link is supported by the sewing machine frame 1 so as to be rotatable about pin shafts 112 and 113 respectively provided on 111, and via a pin 114 provided at the tip of one bending portion 111. It is connected to the other end portion 65 of 54.
【００２６】他方の折曲部１１０の下端に設けられたピ
ン軸１１５には送り連結ロッド１１６の一端が連結さ
れ、該送り連結ロッドの他端は上端１１９がミシン機枠
１に支持される送り連結腕１１７の下端と該送り連結ロ
ッドに固着のピン１１８を介して連結せしめられる。One end of a feed connecting rod 116 is connected to a pin shaft 115 provided at the lower end of the other bent portion 110, and the other end of the feed connecting rod has an upper end 119 supported by the sewing machine frame 1. The lower end of the connecting arm 117 and the feed connecting rod are connected to each other via a pin 118 that is fixed.
【００２７】前記送り連結腕１１７は送り調節操作部の
回動操作により上端１１９を中心に揺動せしめられるた
め、送り調節体１０９を介して差動送り機構の主送り調
節リンク５４が回動せしめられる。Since the feed connecting arm 117 is swung about the upper end 119 by the turning operation of the feed adjusting operation portion, the main feed adjusting link 54 of the differential feed mechanism is turned via the feed adjusting body 109. Be done.
【００２８】又、前記送り調節体１０９の折曲部１１０
の一部に設けられたピン軸１１９には前記差動送り機構
の副送り調節リンク６３の他端部６８に上端１２０を連
結する変換腕１２１の下端１２２が連結されている。変
換腕１２１の略中央には長穴１２３が形成されており、
該長穴にはミシン機枠１に上端１２４を回動自在に支持
される差動連結腕１２５の下端に植設のピン１２６が嵌
合せしめられている。Further, the bent portion 110 of the feed adjusting body 109.
A lower end 122 of a conversion arm 121 that connects an upper end 120 to the other end 68 of the auxiliary feed adjusting link 63 of the differential feed mechanism is connected to a pin shaft 119 provided in a part of the above. A long hole 123 is formed in the approximate center of the conversion arm 121,
A pin 126 is fitted to the lower end of a differential connecting arm 125 whose upper end 124 is rotatably supported by the sewing machine frame 1 in the elongated hole.
【００２９】前記差動連結腕１２５は差動調節操作部の
回動操作により上端１２４を中心に揺動せしめられるた
め下端のピン１２６は前記変換腕１２１を回動させなが
ら変換腕１２１の長穴１２３内を移動せしめられる。変
換腕１２１内のピン１２６の位置が変わると主送り歯と
副送り歯の差動比が変わる。Since the differential connecting arm 125 is swung about the upper end 124 by the turning operation of the differential adjusting operation portion, the pin 126 at the lower end is a long hole of the converting arm 121 while rotating the converting arm 121. It can be moved in 123. When the position of the pin 126 in the conversion arm 121 changes, the differential ratio between the main feed dog and the sub feed dog changes.
【００３０】従って、前記送り調節操作の回動操作によ
り主送り台側の主送り調節リンク５４が回動せしめられ
る時、副送り台側の副送り調節リンク６３も回動せしめ
られるので主副送り台の送り量は一定の比率で調節が行
われる。Therefore, when the main feed adjusting link 54 on the main feed base side is rotated by the turning operation of the feed adjusting operation, the sub feed adjusting link 63 on the sub feed base side is also rotated, so that the main / sub feed operation is performed. The feed amount of the table is adjusted at a constant rate.
【００３１】本発明の構成は以上の通りであるから、前
記送り量調節操作部９０を操作することにより、前記送
りロッド７４が矢印Ｅ方向に動かされて、送り腕７２及
び主送り伝達腕６６の回動を介して主送り水平リンク１
７の運動中心を変えて主送り台２１の水平運動量が調節
されると共に変換腕８０及び副送り調節腕６９の回動を
介して副送り水平リンク１９の運動中心を変えて副送り
台３５の水平運動量が調節され、前記差動調節操作部９
１を操作することにより、前記差動ロッド７７が矢印Ｇ
方向に動かされると、変換腕８０の長穴８１内のピン７
９の位置が変動されて変換腕８０の回動中心が変わる。Since the structure of the present invention is as described above, the feed rod 74 is moved in the direction of arrow E by operating the feed amount adjusting and operating section 90, and the feed arm 72 and the main feed transmitting arm 66. Main feed horizontal link via rotation of 1
The horizontal movement amount of the main feed table 21 is adjusted by changing the movement center of 7 and the movement center of the sub feed horizontal link 19 is changed by rotating the conversion arm 80 and the sub feed adjustment arm 69. The horizontal momentum is adjusted, and the differential adjustment operating unit 9
By operating 1, the differential rod 77 is moved to the arrow G
Pin 7 in the elongated hole 81 of the conversion arm 80 when moved in the direction
The position of 9 is changed, and the center of rotation of the conversion arm 80 is changed.
【００３２】例えば差動ロッド７７のピン７９が下降す
ると送りロッド７４が回動された場合、主送り台側への
伝達量より副送り台側への伝達量が増加するので、副送
り台側の副送り水平リンク１９の運動中心となる副送り
リンク５７のピン６２の位置は主送り台側の主送り水平
リンク１７の運動中心となる主送りリンク４８のピン５
３の位置より矢印Ｈ方向(図２)に動かされるので、主送
り台の送り量よりも副送り台の送り量が大きくなり両者
の送り量の比率が変えられることになる。For example, when the feed rod 74 is rotated when the pin 79 of the differential rod 77 descends, the transmission amount to the sub-feeding base side increases from the transmission amount to the main-feeding base side. The position of the pin 62 of the auxiliary feed link 57, which is the movement center of the auxiliary feed horizontal link 19, is the pin 5 of the main feed link 48, which is the movement center of the main feed horizontal link 17 on the main feed table side.
Since it is moved in the direction of arrow H (FIG. 2) from the position of 3, the feed amount of the auxiliary feed plate becomes larger than the feed amount of the main feed plate, and the ratio of both feed amounts can be changed.
【００３３】そして本発明では主送り台２１と副送り台
３５は夫々独立して運動が与えられ、主送り台２１は主
送りカム１５と主送り水平リンク１７とにより水平運動
が与えられ、副送り台３５は副送りカム１６と副送り水
平リンク１９とにより水平運動から与えられ、且つ副送
り台３５を主送り台２１に取付けられた押え板４０と主
送り台２１の窓部２６に保持された角駒３９の上面とで
挟持される如き平行な上下面を持った簡単な形状にされ
ている。In the present invention, the main feed table 21 and the sub feed table 35 are independently moved, and the main feed table 21 is horizontally moved by the main feed cam 15 and the main feed horizontal link 17. The feed table 35 is given from the horizontal movement by the sub feed cam 16 and the sub feed horizontal link 19, and the sub feed table 35 is held by the holding plate 40 attached to the main feed table 21 and the window portion 26 of the main feed table 21. It has a simple shape having parallel upper and lower surfaces so as to be sandwiched by the upper surface of the square piece 39 formed.
【００３４】更に本発明では差動送り調節機構を前記送
り台の運動機構から完全独立させ且つ静止させているの
で送り台機構の運動質量が軽減させられている。Further, in the present invention, since the differential feed adjusting mechanism is completely independent from the moving mechanism of the feed table and is stationary, the moving mass of the feed table mechanism is reduced.
【００３５】[0035]
【効果】本発明は以上の如き構成及び作用をなすもので
あるから、主送り台と副送り台とを独立して駆動するよ
うにした為、従来に比べ主送り台にかかる負荷が著しく
軽減されるから構造を簡素化することが出来ると共に、
副送り台を主送り台の押え板と主送り台にて保持する角
駒の上面とで挟持する構造にしたので、副送り台の構造
を極めて簡単にすることが出来、更に差動送り調節機構
が送り台機構から分離し且つ静止しているので、送り台
機構の運動質量は極めて小さくなり、従って振動を著し
く軽減することが出来る実用上効果大なるものである。[Effect] Since the present invention has the above-mentioned configuration and operation, the main feed table and the sub feed table are driven independently, so the load on the main feed table is significantly reduced compared to the conventional case. It is possible to simplify the structure because it is done,
The structure of the sub-feed base is clamped between the holding plate of the main feed base and the upper surface of the square piece held by the main feed base, so the structure of the sub-feed base can be made extremely simple, and the differential feed adjustment mechanism is also provided. Since it is separated from the feed base mechanism and is stationary, the moving mass of the feed base mechanism is extremely small, and therefore vibrations can be significantly reduced, which is a great practical effect.
【００３６】[0036]
図１は本発明装置を内蔵したミシンの外観図、図２は本
発明装置の要部の側面図、図３は本発明装置の要部構造
の分解斜視図、図４は本発明装置の要部構造の斜面図、
図５は本発明装置の要部構造の全体図、図６は本発明装
置の他の実施例の要部構造の斜視図。 ４…駆動軸 １５…主送りカム １６…副送りカム １７…主送り水平リンク １９…副送り水平リンク ２１…主送り台 ２３…主送り揺動腕 ２７…副送り揺動腕 ３０…軸部 ３２…副送り台リンク ３５…副送り台 ３９…角駒 ４０…押え板 ４８…主送りリンク ５４…主送り調節リンク ５７…副送りリンク ６３…副送り調節リンク ７２…送り腕、 ８０…変換腕、 ８９…連結ロッド1 is an external view of a sewing machine incorporating the device of the present invention, FIG. 2 is a side view of the essential parts of the device of the present invention, FIG. 3 is an exploded perspective view of the structure of the essential parts of the device of the present invention, and FIG. Slope view of the substructure,
5 is an overall view of the main structure of the device of the present invention, and FIG. 6 is a perspective view of the main structure of another embodiment of the device of the present invention. 4 ... Drive shaft 15 ... Main feed cam 16 ... Sub feed cam 17 ... Main feed horizontal link 19 ... Sub feed horizontal link 21 ... Main feed base 23 ... Main feed swing arm 27 ... Sub feed swing arm 30 ... Shaft section 32 ... Sub feed table link 35 ... Sub feed table 39 ... Square piece 40 ... Holding plate 48 ... Main feed link 54 ... Main feed adjustment link 57 ... Sub feed link 63 ... Sub feed adjustment link 72 ... Feed arm, 80 ... Conversion arm, 89 ... Connecting rod
Claims (1)
に固着された主送りカムに一端を嵌装する主送り水平リ
ンクと、前記駆動軸に固着された副送りカムに一端を嵌
装する副送り水平リンクと、前記主送り水平リンクの揺
動に連動せしめられ先端に主送り歯を固着の主送り台
と、前記副送り水平リンクの揺動に連動せしめられ先端
に副送り歯を固着の副送り台と、前記主送り水平リンク
の他端に連結する主送り調節リンクと、該主送り調節リ
ンクに主送り伝達腕を介して連結の送り腕と、該送り腕
を回動せしめる送り量調節操作部と、前記副送り水平リ
ンクの他端に連結する副送り調節リンクと、該副送り調
節リンクに副送り調節腕、副送り伝達腕等を介して連結
の変換腕と、該変換腕の長穴内に嵌装のピンの位置を変
える差動調節操作部と、変換腕と前記送り腕とを連結す
る連結ロッドとで構成されることを特徴とするミシンの
差動送り機構。Claims: A drive shaft rotatably supported by a sewing machine frame, a main feed horizontal link having one end fitted to a main feed cam fixed to the drive shaft, and a sub feed fixed to the drive shaft. A sub-feed horizontal link whose one end is fitted to the feed cam, a main feed table which is interlocked with the swing of the main feed horizontal link and has a main feed tooth fixed to the tip, and an interlock with the swing of the sub-feed horizontal link. A sub-feed base having a sub-feed tooth fixed to the tip, a main-feed adjusting link connecting to the other end of the main-feed horizontal link, and a feed arm connected to the main-feed adjusting link via a main-feed transmitting arm, A feed amount adjusting operation part for rotating the feed arm, a sub-feed adjusting link connected to the other end of the sub-feed horizontal link, and a sub-feed adjusting arm, a sub-feed transmitting arm or the like via the sub-feed adjusting link. Change the position of the connecting conversion arm and the fitting pin in the long hole of the conversion arm. A differential feed mechanism of a sewing machine, comprising: a differential adjustment operation part, and a connecting rod that connects the conversion arm and the feed arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03177255A JP3075592B2 (en) | 1991-06-21 | 1991-06-21 | Sewing machine differential feed adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03177255A JP3075592B2 (en) | 1991-06-21 | 1991-06-21 | Sewing machine differential feed adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05197A true JPH05197A (en) | 1993-01-08 |
| JP3075592B2 JP3075592B2 (en) | 2000-08-14 |
Family
ID=16027880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03177255A Expired - Fee Related JP3075592B2 (en) | 1991-06-21 | 1991-06-21 | Sewing machine differential feed adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3075592B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100413123B1 (en) * | 2001-08-24 | 2003-12-31 | 이종하 | Decleerate of slide fastener manufactory machine |
| CN103437075A (en) * | 2013-08-13 | 2013-12-11 | 吴江市中盛机械有限公司 | Tooth insert crank |
| CN106149214A (en) * | 2016-09-27 | 2016-11-23 | 浙江中捷缝纫科技有限公司 | A kind of differential governor motion |
-
1991
- 1991-06-21 JP JP03177255A patent/JP3075592B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100413123B1 (en) * | 2001-08-24 | 2003-12-31 | 이종하 | Decleerate of slide fastener manufactory machine |
| CN103437075A (en) * | 2013-08-13 | 2013-12-11 | 吴江市中盛机械有限公司 | Tooth insert crank |
| CN106149214A (en) * | 2016-09-27 | 2016-11-23 | 浙江中捷缝纫科技有限公司 | A kind of differential governor motion |
| CN106149214B (en) * | 2016-09-27 | 2021-08-24 | 浙江中捷缝纫科技有限公司 | Differential adjusting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3075592B2 (en) | 2000-08-14 |
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