JPH0280085A - Supporting device for feed dog in sewing machine - Google Patents
Supporting device for feed dog in sewing machineInfo
- Publication number
- JPH0280085A JPH0280085A JP22989888A JP22989888A JPH0280085A JP H0280085 A JPH0280085 A JP H0280085A JP 22989888 A JP22989888 A JP 22989888A JP 22989888 A JP22989888 A JP 22989888A JP H0280085 A JPH0280085 A JP H0280085A
- Authority
- JP
- Japan
- Prior art keywords
- feed dog
- feed
- screw
- screw thread
- dog
- 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.)
- Pending
Links
- 238000009958 sewing Methods 0.000 title claims description 14
- 238000013459 approach Methods 0.000 abstract description 2
- 235000013290 Sagittaria latifolia Nutrition 0.000 abstract 1
- 235000015246 common arrowhead Nutrition 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ミシンの送り歯の支持装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a support device for a feed dog of a sewing machine.
［従来の技術］
第２図及び第３図は例えば特公昭５８−４９２７９号公
報に示された従来のミシンの布送り装置を示す構成図で
あり、図において、１はミシン上軸、２は水平送り腕で
あり、水平送り軸３にネジ４で固定されている。５は送
り台支え軸であり、水平送り腕２にネジ６で固定されて
いる。７は送り台であり、送り台７の基端に設けられた
穴７ａが送り台支え軸５の外径面５ａと回転自在に構成
されている。８はミシン下軸であり、図示しないミシン
筐体に回転自在に支持されている。９は偏心カムであり
、ミシン下軸８にネジ１０で固定されている。１１は偏
心カム９に係合させたコ字状の係合部材であり、ネジ１
２により送り台７に固定され、係合面１１ａ、ｌｌｂが
偏心カム９の外径面９ａと進み自在に構成されている。[Prior Art] Fig. 2 and Fig. 3 are block diagrams showing a cloth feeding device of a conventional sewing machine disclosed in, for example, Japanese Patent Publication No. 58-49279. This is a horizontal feed arm, and is fixed to the horizontal feed shaft 3 with a screw 4. Reference numeral 5 denotes a feed stand support shaft, which is fixed to the horizontal feed arm 2 with a screw 6. Reference numeral 7 denotes a feed base, and a hole 7a provided at the base end of the feed base 7 is configured to be rotatable with the outer diameter surface 5a of the feed base support shaft 5. Reference numeral 8 denotes a lower shaft of the sewing machine, which is rotatably supported by a sewing machine housing (not shown). Reference numeral 9 denotes an eccentric cam, which is fixed to the lower shaft 8 of the sewing machine with a screw 10. 11 is a U-shaped engagement member engaged with the eccentric cam 9, and the screw 1
2 is fixed to the feed base 7, and the engaging surfaces 11a and llb are configured to be able to freely advance with the outer diameter surface 9a of the eccentric cam 9.
１３は送り歯であり、その一端をネジ１４で送り台７に
固定するとともに、他端の下面に送り台７にねじ込まれ
た調節ネジ１５の先端部１５ａを接当させ支持している
。１６は押え金であり、下面１６ａと送り歯１３の上面
１３ａとで布１７を挾持する。Reference numeral 13 denotes a feed dog, one end of which is fixed to the feed table 7 with a screw 14, and the tip 15a of an adjustment screw 15 screwed into the feed table 7 is brought into contact with and supported on the lower surface of the other end. Reference numeral 16 denotes a presser foot, which holds the cloth 17 between the lower surface 16a and the upper surface 13a of the feed dog 13.
次に動作について説明する。ミシン上軸１がモータ等に
より回転すると、中間の諸リンクが動作し、□水平送り
腕２が水平送り軸３を中心として矢印Ａ方向へ揺動運動
をする。一方、偏心カム９はミシン下軸８を中心として
矢印Ｂ方向へ回転運動をする。そのため係合部材１１は
矢印Ｃ方向へ上下運動をする。その結果、送り台７に固
定されている送り歯１３は、矢印り方向のような運動を
することになり、押え金１６と送り歯１３で挾まれた布
１７を送る。Next, the operation will be explained. When the upper shaft 1 of the sewing machine is rotated by a motor or the like, the intermediate links operate, and the horizontal feed arm 2 swings in the direction of arrow A about the horizontal feed shaft 3. On the other hand, the eccentric cam 9 rotates in the direction of arrow B around the lower shaft 8 of the sewing machine. Therefore, the engaging member 11 moves up and down in the direction of arrow C. As a result, the feed dog 13 fixed to the feed base 7 moves in the direction of the arrow, and feeds the cloth 17 held between the presser foot 16 and the feed dog 13.
このとき、第４図のように、送り歯１３を調節ネジ１５
を右回りまたは左回りに回転することにより、水平の標
準状態から前下り、前上りの状態にそれぞれ傾斜させる
ことができる。これは、縫製条件によって、布縮みを防
止したり、布ずれを防止する必要が生じた場合、送り歯
１３の傾斜を調節するためである。At this time, as shown in FIG.
By rotating clockwise or counterclockwise, it is possible to tilt from a horizontal standard state to a forward downward or forward upward condition, respectively. This is to adjust the inclination of the feed dog 13 when it becomes necessary to prevent fabric shrinkage or fabric displacement depending on sewing conditions.
［発明が解決しようとする課題］
従来のミシン送り歯の支持装置は、以上のように構成さ
れているので、前上りの状態、あるいは前下りの状態に
送り歯を傾斜させた場合、送り歯は送り台７の接触点７
Ｃと、調節ネジ１５の接触点１５ａとで支持されている
ので、送り歯の運動方向（矢印Ｅ方向）と直角な方向（
第４図の紙面の表裏方向）の負荷力Ｆを受けた場合、送
り歯がずれてしまい、正常な布送り運動ができなくなる
などの問題点があった。[Problems to be Solved by the Invention] Since the conventional sewing machine feed dog support device is configured as described above, when the feed dog is tilted in the front up position or the front down position, the feed dog is contact point 7 of feed table 7
C and the contact point 15a of the adjustment screw 15, so the direction perpendicular to the direction of movement of the feed dog (direction of arrow E) (
When subjected to a load force F (in the direction from the front to the back of the paper in FIG. 4), the feed dog becomes misaligned, resulting in problems such as the inability to carry out normal cloth feed motion.
本発明は、上記の従来の課題を解決するためになされた
もので、送り歯の運動方向と直角な方向の負荷力Ｆが作
用しても送り歯がずれるようなことがなくこれを確実に
支持し、かつ簡単に送り歯を傾斜させることができるミ
シン送り歯の支持装置を得ることを目的とする。The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to ensure that the feed dog does not shift even if a load force F in a direction perpendicular to the direction of movement of the feed dog is applied. To provide a support device for a feed dog of a sewing machine that can support the feed dog and easily tilt the feed dog.
［課題を解決するための手段］
本発明に係るミシン送り歯の支持装置は、送り歯の一端
をネジで送り台に固定し、前記送り歯の他端の下部を前
記送り台にねじ込んだ調節ネジで支持するようにしたも
のにおいて、調節ネジに右ネジ及び左ネジを設け、該調
節ネジを送り台と送り歯の双方に螺合させたものである
。[Means for Solving the Problems] A support device for a sewing machine feed dog according to the present invention has an adjustment mechanism in which one end of the feed dog is fixed to the feed base with a screw, and the lower end of the other end of the feed dog is screwed into the feed base. In the device supported by screws, the adjustment screw is provided with a right-hand thread and a left-hand thread, and the adjustment screw is screwed into both the feed base and the feed dog.
［作 用］
本発明においては、調節ネジが送り台と送り歯の双方に
ねじ込まれているので、送り歯の運動方向と直角な方向
の負荷力Ｆに対しても十分に対抗することができ、送り
歯がずれることはない。また、調節ネジを右または左方
向に回すことにより送り歯と送り台間の間隙が変化し、
送り歯の傾斜を変更することができる。[Function] In the present invention, since the adjustment screw is screwed into both the feed base and the feed dog, it can sufficiently resist the load force F in the direction perpendicular to the direction of movement of the feed dog. , the feed dog will not shift. Also, by turning the adjustment screw clockwise or counterclockwise, the gap between the feed dog and the feed base can be changed.
The inclination of the feed dog can be changed.
［実施例コ
以下、本発明の一実施例を第１図により説明する。第１
図はこの実施例の部分断面図であり、図において、１３
ａは送り歯１３に設けられたネジ穴であり、この実施例
では左ネジが施されている。[Example 1] An example of the present invention will be described below with reference to FIG. 1st
The figure is a partial sectional view of this embodiment, and in the figure, 13
A is a screw hole provided in the feed dog 13, and in this embodiment, it is left-handed threaded.
７ｄは送り台７に設けられたネジ穴であり、反対の右ネ
ジが施されている。・１８は調節ネジであり、上半分は
左ネジ１８ａ１下半分は右ネジ１８ｂとなっており、上
半分は送り歯のネジ穴１３ａとねじ対偶、下半分は送り
台のネジ穴７ｄとねじ対偶となっている。その他の構成
は従来例を示した第２図、第３図と同じである。7d is a screw hole provided in the feed base 7, and has an opposite right-hand thread.・18 is an adjustment screw, the upper half is a left-hand screw 18a, the lower half is a right-hand screw 18b, the upper half is a screw hole 13a of the feed dog and a screw pair, and the lower half is a screw hole 7d of the feed base and a screw pair. It becomes. The other configurations are the same as those in FIGS. 2 and 3 showing the conventional example.
次に、上記のように構成された実施例の動作を説明する
。第１図において、紙面に垂直な負荷力Ｆが作用しても
、調節ネジ１８は送り台７及び送り歯１３の双方にねじ
込まれているので、接触点７Ｃと調節ネジ１８とで負荷
力Ｆに対抗するため、送り歯１３がずれることはなく確
実にこれを支持することができる。Next, the operation of the embodiment configured as described above will be explained. In FIG. 1, even if a load force F perpendicular to the plane of the paper acts, since the adjustment screw 18 is screwed into both the feed base 7 and the feed dog 13, the load force F is applied between the contact point 7C and the adjustment screw 18. In order to counteract this, the feed dog 13 can be reliably supported without shifting.
次に、送り歯１３の傾きを変更するときは、調節ネジ１
８は右ネジ１８ｂと左ネジ１８ａとで構成されているの
で、調節ネジ１８を矢印Ｆ方向に回すと調節ネジ１８は
上方へ進み、その上半分の左ネジ１８ａが螺合している
送り歯１３も送り台７から離れていくため１、送り歯１
．３は前下りの状態となる。反対に、調節ネジ１８を矢
印Ｇ方向に回すと調節ネジ１８は下方へ進み、送り歯１
３も送り台７に近付いてくるため、送り歯１３は前上り
の状態となる。このように送り歯１３と送り台７との間
隙１９が変化して図示のように前上りあるいは前下りの
状態となる。なお、送り歯１３を傾斜させる際には、あ
らかじめ送り歯１３の固定ネジ１４を緩めてから調節ネ
ジ１８を上記のように回し、再度ネジ１４を締め付けて
固定するので、調節ネジ１８の操作上支障はない。Next, when changing the inclination of the feed dog 13, use the adjustment screw 1
8 consists of a right-hand screw 18b and a left-hand screw 18a, so when the adjusting screw 18 is turned in the direction of arrow F, the adjusting screw 18 moves upward, and the upper half of the adjusting screw 18 is screwed into the feed dog. 13 also moves away from the feed table 7, so the feed dog 1
．． 3 is in a forward downhill state. Conversely, when the adjusting screw 18 is turned in the direction of arrow G, the adjusting screw 18 moves downward, and the feed dog 1
3 also approaches the feed base 7, so the feed dog 13 is in a forward upward position. In this way, the gap 19 between the feed dog 13 and the feed base 7 changes, resulting in a front-up or front-down state as shown in the figure. Note that when tilting the feed dog 13, first loosen the fixing screw 14 of the feed dog 13, turn the adjusting screw 18 as described above, and then tighten the screw 14 again to fix it. There is no problem.
［発明の効果］
以上のように本発明によれば、調節ネジを右ネジと左ネ
ジで構成し、この調節ネジを送り台と送り歯の双方にね
じ込んで調節するようにしたので、送り歯の支持が確実
となり、かつ送り歯を簡単に傾斜させることができると
いう効果が得られる。[Effects of the Invention] As described above, according to the present invention, the adjusting screw is configured with a right-handed screw and a left-handed screw, and the adjusting screw is screwed into both the feed base and the feed dog for adjustment. This provides the effect that the feed dog can be supported reliably and the feed dog can be easily tilted.
第１図は本発明の実施例の部分断面図、第２図は従来の
ミシンの布送り装置の斜視図、第３図は第２図の送り歯
支持装置の部分断面図、第４図は従来の送り歯の傾斜動
作を示す説明図である。
７・・・送り台
１３・・・送り歯
１４・・・ネジ
１８・・・調節ネジ
１８ａ・・・左ネジ
１８ｂ・・・右ネジ
なお、図中、同一符号は同一または相当部分を示す。
代理人 弁理士 佐々木 宗 治
第１図FIG. 1 is a partial sectional view of an embodiment of the present invention, FIG. 2 is a perspective view of a conventional sewing machine cloth feeding device, FIG. 3 is a partial sectional view of the feed dog support device of FIG. 2, and FIG. It is an explanatory view showing the inclination operation of the conventional feed dog. 7...Feed base 13...Feed dog 14...Screw 18...Adjustment screw 18a...Left-hand screw 18b...Right-hand screw Note that in the drawings, the same reference numerals indicate the same or equivalent parts. Agent Patent Attorney Souji Sasaki Figure 1
Claims (1)
端の下部を前記送り台にねじ込んだ調節ネジで支持する
ようにしたものにおいて、 前記調節ネジに右ネジ及び左ネジを設け、該調節ネジを
前記送り歯及び送り台の双方にねじ込む構成としたこと
を特徴とするミシンの送り歯の支持装置。[Scope of Claims] One end of the feed dog is fixed to the feed base with a screw, and the lower end of the other end of the feed dog is supported by an adjustment screw screwed into the feed base, further comprising: a screw on the right side of the adjustment screw; 1. A support device for a feed dog of a sewing machine, characterized in that a screw and a left-hand thread are provided, and the adjustment screw is screwed into both the feed dog and the feed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22989888A JPH0280085A (en) | 1988-09-16 | 1988-09-16 | Supporting device for feed dog in sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22989888A JPH0280085A (en) | 1988-09-16 | 1988-09-16 | Supporting device for feed dog in sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0280085A true JPH0280085A (en) | 1990-03-20 |
Family
ID=16899457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22989888A Pending JPH0280085A (en) | 1988-09-16 | 1988-09-16 | Supporting device for feed dog in sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0280085A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0574474U (en) * | 1992-03-23 | 1993-10-12 | ヤマトミシン製造株式会社 | Top feed device of sewing machine |
| CN1101867C (en) * | 1999-02-08 | 2003-02-19 | 重机株式会社 | Mechanism for regulating height of pay-off teeth |
| CN111607912A (en) * | 2019-02-26 | 2020-09-01 | 杰克缝纫机股份有限公司 | Feeding tooth height adjusting mechanism of sewing machine |
-
1988
- 1988-09-16 JP JP22989888A patent/JPH0280085A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0574474U (en) * | 1992-03-23 | 1993-10-12 | ヤマトミシン製造株式会社 | Top feed device of sewing machine |
| CN1101867C (en) * | 1999-02-08 | 2003-02-19 | 重机株式会社 | Mechanism for regulating height of pay-off teeth |
| CN111607912A (en) * | 2019-02-26 | 2020-09-01 | 杰克缝纫机股份有限公司 | Feeding tooth height adjusting mechanism of sewing machine |
| CN111607912B (en) * | 2019-02-26 | 2022-07-05 | 杰克科技股份有限公司 | Feeding tooth height adjusting mechanism of sewing machine |
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