JPS6349269Y2 - - Google Patents
Info
- Publication number
- JPS6349269Y2 JPS6349269Y2 JP1983073040U JP7304083U JPS6349269Y2 JP S6349269 Y2 JPS6349269 Y2 JP S6349269Y2 JP 1983073040 U JP1983073040 U JP 1983073040U JP 7304083 U JP7304083 U JP 7304083U JP S6349269 Y2 JPS6349269 Y2 JP S6349269Y2
- Authority
- JP
- Japan
- Prior art keywords
- thread
- sewing machine
- needle
- blade
- cutter
- 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
- 238000005520 cutting process Methods 0.000 claims description 28
- 238000009958 sewing Methods 0.000 claims description 20
- 238000009966 trimming Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009964 serging Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
(技術分野)
本考案は、ミシンの糸切り装置に係り、特に僅
かな糸張力で糸切りができるようにすると共に糸
切り時に針棒に装着された針に十分な糸足長さが
残るようにしたミシンの糸切り装置に関する。[Detailed description of the invention] (Technical field) The present invention relates to a thread cutting device for a sewing machine, and in particular, it is designed to be able to cut threads with a small thread tension, and to provide sufficient tension to the needle attached to the needle bar during thread cutting. This invention relates to a thread cutting device for a sewing machine that allows thread length to remain.
(従来技術)
従来、ミシン切り具は、種々の方式のものが実
用に供されている。第1図の示すものは、現在使
用されいる糸切り具1の一実施例であり、ミシン
の押え棒2に斜め方向に切り込まれた刃部2aが
形成されている。該糸切り具において糸切りを行
うときは、刃部2aに挿入した糸3の両端を指で
押え強く引張つて下方に押し下げないと、良く切
れないという欠点があり、他の実用化されている
糸切り具においても大体同様な欠点があつた。ま
た糸切り時に糸3を案内する部分が設けられてい
ないので、糸切り具1の刃部2aに糸3を引き入
れるのが困難であつた。また糸切り時に、針棒4
に装着された針5に十分な糸足長さが残つていな
いため、針棒4が上昇したときに針5から糸3が
抜けてしまうという欠点があつた。(Prior Art) Conventionally, various types of sewing machine cutting tools have been put into practical use. What is shown in FIG. 1 is an example of a thread cutting tool 1 currently in use, in which a blade portion 2a cut diagonally into a presser bar 2 of a sewing machine is formed. When cutting the thread with this thread cutting tool, the thread 3 inserted into the blade part 2a has the disadvantage that it cannot be cut well unless both ends of the thread 3 are held down with fingers and strongly pulled and pushed down. Almost the same drawbacks were found in thread trimmers. Further, since there is no part for guiding the thread 3 during thread cutting, it is difficult to draw the thread 3 into the blade portion 2a of the thread cutting tool 1. Also, when trimming the thread, the needle bar 4
Since there is not enough thread length left in the needle 5 attached to the needle 5, there is a drawback that the thread 3 comes off from the needle 5 when the needle bar 4 is raised.
(目的及び解決手段)
本考案は、上記した従来技術の欠点を除去する
ために考案されたものであつて、その目的とする
ところは、刃物を取り付ける取付け台に形成され
た糸導入部と刃物の刃部とを鋭角的に交差させた
部分に糸を引き入れて切断することによつて、僅
かな糸張力で、糸が切断できるようにすることで
あり、またこれによつて糸切り操作を容易にする
ことである。また他の目的は、ミシン頭部正面に
向つて針棒の下端に装着された針より左斜上方に
配置された取付け部材の下端に糸切り具を取り付
けることによつて、糸切り時に、針に十分な糸足
長さを残すようにし、針棒が上昇したときに、針
から糸が抜けないようにすることである。更に他
の目的は、取付け部材の下端に後端部から前端部
に向つて糸案内部を形成することによつて、該糸
案内部に沿つて糸を案内し、糸切り具に糸を引き
入れやすくすることである。(Purpose and solution) The present invention was devised to eliminate the drawbacks of the above-mentioned prior art, and its purpose is to connect the thread introduction part formed on the mount for attaching the cutter to the cutter. By pulling the thread into the part where the blade intersects at an acute angle and cutting it, the thread can be cut with a small thread tension. It's about making it easier. Another object of the present invention is to attach a thread trimmer to the lower end of the mounting member, which is located diagonally above and to the left of the needle attached to the lower end of the needle bar when facing the front of the sewing machine head. The goal is to leave enough thread length to prevent the thread from coming off the needle when the needle bar is raised. Still another object is to form a thread guide section at the lower end of the attachment member from the rear end toward the front end, to guide the thread along the thread guide section and to draw the thread into the thread cutter. It's about making it easier.
(実施例)
以下本考案を図面に示す実施例に基いて説明す
る。本考案に係るミシンの糸切り装置10は、糸
切り具11と、該糸切り具が取り付けられる取付
け部材12とを備えている。(Example) The present invention will be described below based on an example shown in the drawings. A thread cutting device 10 for a sewing machine according to the present invention includes a thread cutting tool 11 and a mounting member 12 to which the thread cutting tool is attached.
糸切り具11は、第2図から第5図に示すよう
に、取付け台13と、刃物14と、カバー部材1
5とからなり、取付け台13は、直角状に折曲さ
れた水平部13aと直立部13bとからなりL字
状に形成されている。水平部13aには、第5図
に示すように、左端縁に左方を開口したU字形の
切欠き部13cが形成されており、該切欠き部の
一壁面が糸導入部13dとなつている。また水平
部13aの右側には、ボス部13eが打出し形成
されている。 As shown in FIGS. 2 to 5, the thread cutting tool 11 includes a mounting base 13, a cutter 14, and a cover member 1.
5, and the mounting base 13 is formed into an L-shape, consisting of a horizontal portion 13a bent at a right angle and an upright portion 13b. As shown in FIG. 5, the horizontal portion 13a has a U-shaped notch 13c that is open on the left at its left edge, and one wall of the notch serves as a thread introduction portion 13d. There is. Further, a boss portion 13e is formed by stamping on the right side of the horizontal portion 13a.
刃物14は、平板からなり、一端面に刃部14
aが形成されている。刃物14の右側には、穴1
4bが形成されており、該穴に取付台13のボス
部13eが嵌入するようになつている。 The blade 14 is made of a flat plate, and has a blade portion 14 on one end surface.
a is formed. There is a hole 1 on the right side of the blade 14.
4b is formed, and the boss portion 13e of the mounting base 13 is fitted into the hole.
カバー部材15は、取付け台13の水平部13
aに取り付けられた刃物14を被覆するようにし
て取付け台13の水平部13aにねじり18によ
つて固着されており、左端縁には、取付け台13
の切欠き部13cに対向し、かつ若干大きい切欠
き部15aが形成されている。またカバー部材1
5の右端縁及び前端縁には、取付け台13の水平
部13aの右端縁及び前端縁に当接するように折
曲された右壁部15b及び前壁部15cが夫々形
成されている。また該前壁部には、取付け台13
の水平部13aの下面の一部に当接して被覆する
ように折曲部15dが形成されている。 The cover member 15 covers the horizontal portion 13 of the mounting base 13.
It is fixed to the horizontal part 13a of the mount 13 by a twist 18 so as to cover the cutter 14 attached to the mount 13, and the left edge of the mount 13
A slightly larger notch 15a is formed opposite to the notch 13c. Also, cover member 1
A right wall portion 15b and a front wall portion 15c are formed on the right edge and front edge of the mounting base 13, respectively, and are bent so as to come into contact with the right edge and front edge of the horizontal portion 13a of the mounting base 13. Additionally, a mounting base 13 is provided on the front wall.
A bent portion 15d is formed so as to abut and cover a part of the lower surface of the horizontal portion 13a.
刃物14は、穴14bに取付け台13のボス部
13eを嵌入し、刃部14aが取付け台13の糸
導入部13dと鋭角的に交差するように取付け台
13に取付けられており、また刃物14の右側面
14cはカバー部材15の右壁部15bに当接
し、回転しないように拘束されている。 The cutter 14 is attached to the mount 13 so that the boss 13e of the mount 13 is fitted into the hole 14b, and the blade 14a intersects the thread introduction part 13d of the mount 13 at an acute angle. The right side surface 14c of the cover member 15 is in contact with the right wall portion 15b of the cover member 15, and is restrained from rotating.
取付け部材の一例たる面板12は、第6図に示
すように、ミシン頭部19正面に向つて針棒4の
下端に装着された針5より左斜上方に配置されて
おり、該面板に糸切り具11の取付け台13の直
立部13bが接着剤等の固着手段によつて固着さ
れている。また面板12の下端には、後端部から
前端部に向つて斜めに面取りされた糸案内部12
aが形成されている。 As shown in FIG. 6, the face plate 12, which is an example of a mounting member, is disposed diagonally above and to the left of the needle 5 attached to the lower end of the needle bar 4 toward the front of the sewing machine head 19. The upright portion 13b of the mounting base 13 for the cutting tool 11 is fixed by a fixing means such as adhesive. Further, at the lower end of the face plate 12, there is a thread guide section 12 that is chamfered diagonally from the rear end toward the front end.
a is formed.
本考案は、上記のように構成されており、以下
その作用について説明する。第6図に示すよう
に、針5の左斜上方に配置された面板12の下端
に固着された糸切り具11で、布25に付いてい
る糸3を切る場合について説明する。該糸は、糸
こま(図示せず)より引き出され、針棒4に装着
された針5に挿入された糸3に連続しており、布
25を片方の指で把持して、糸3を面板12の糸
案内部12aに沿つて前方に移動させ、刃物14
の刃部14aと取付け台13の糸導入部13dと
の交差部分P(第2図参照)に導入し、刃部14
aに対して下方に鋭角をなすように引張ると、糸
3は刃物14の裏面と取付け台13の水平部13
aとに挾持されて刃部14aへの押圧力を高め、
糸切断力が向上する。この結果、糸3は僅かな糸
張力で切断することができるので、従来の如く糸
3の両端を指で押えて強く引張る必要がなく、単
に片方の指で布25を把持し、刃物14の刃部1
4aに対して下方に糸3が鋭角をなすように引張
るだけでよい。また糸3は面板12の糸案内部1
2aに案内されて糸切り具11に導入されるの
で、糸切り操作が容易となる。 The present invention is constructed as described above, and its operation will be explained below. As shown in FIG. 6, a case will be described in which the thread 3 attached to the cloth 25 is cut with the thread cutter 11 fixed to the lower end of the face plate 12 disposed diagonally above and to the left of the needle 5. The thread is pulled out from a thread spool (not shown) and is continuous with the thread 3 inserted into the needle 5 attached to the needle bar 4. Grasp the fabric 25 with one finger and pull the thread 3. The cutter 14 is moved forward along the thread guide portion 12a of the face plate 12.
The blade part 14 is introduced into the intersection P (see FIG. 2) between the blade part 14a and the thread introduction part 13d of the mounting base 13.
When pulled downward at an acute angle with respect to a, the thread 3 connects to the back surface of the blade 14 and the horizontal part 13 of the mount 13.
a to increase the pressing force on the blade part 14a,
Improves thread cutting force. As a result, the thread 3 can be cut with a small thread tension, so there is no need to hold both ends of the thread 3 with your fingers and pull it strongly as in the past, but simply hold the cloth 25 with one finger and use the cutter 14. Blade part 1
It is only necessary to pull the thread 3 downwardly at an acute angle with respect to the thread 4a. Furthermore, the thread 3 is connected to the thread guide section 1 of the face plate 12.
Since it is guided by 2a and introduced into the thread cutting tool 11, the thread cutting operation becomes easy.
また刃物14の刃部14aは、使用者に直接触
れないようにカバー部材15で被覆されているの
で、使用者が刃部20aに触れて指を傷つけるよ
うなことはなく、また布25を損傷することもな
い。また糸切り具11は、針5より十分離れた左
斜上方位置に配置された面板12に固着されてお
り、糸切り後針5に十分な糸足長さが残つている
ので、針棒4が上昇しても、針5から糸3が抜け
ることはない。 Further, since the blade part 14a of the knife 14 is covered with a cover member 15 to prevent it from coming into direct contact with the user, the user will not touch the blade part 20a and injure his fingers, and the cloth 25 will not be damaged. There's nothing to do. Further, the thread trimming tool 11 is fixed to a face plate 12 which is arranged at a diagonally upper left position sufficiently far away from the needle 5, and since sufficient thread length remains on the needle 5 after thread trimming, the needle bar 4 Even if the needle 5 rises, the thread 3 will not come out from the needle 5.
なお、本考案に係るミシンの糸切り装置10
は、本縫ミシンに限定されることなく、例えば本
縫機構と縁かがり縫機構を装着したミシン、いわ
ゆる複合ミシンの縁かがり縫時の糸切り用に使用
することもできる。 Note that the sewing machine thread cutting device 10 according to the present invention
The present invention is not limited to lockstitch sewing machines, but can also be used, for example, for thread trimming during overlocking in a sewing machine equipped with a lockstitch mechanism and an overlocking mechanism, a so-called compound sewing machine.
(効果)
本考案は、上記のように構成され、作用するも
のであり、刃物を取り付ける取付け台に形成され
た糸導入部と刃物の刃部とを鋭角的に交差させた
部分に糸が引き入れられ切断されるので、僅かな
糸張力で糸が切断でき、この結果糸切り操作が容
易になる。またミシン頭部正面に向つて針棒の下
端に装着された針より左斜上方に配置された取付
け部材の下端に糸切り具が取り付けられているの
で、糸切り時に、針に十分な糸足長さが十分残る
ようになり、針棒が上昇したときに、針から糸が
抜けるようなことはない。また面板の下端に後端
部から前端部に向かつて糸案内部が形成されてい
るので、該糸案内部に沿つて糸が案内され糸切り
具に引き入れやすくなる等、種々の効果がある。(Effects) The present invention is constructed and operates as described above, and the thread is drawn into the part where the thread introduction part formed on the mount for attaching the cutter intersects with the blade part of the cutter at an acute angle. Since the thread is cut with a slight thread tension, the thread can be cut with a small amount of thread tension, and as a result, the thread cutting operation becomes easy. In addition, the thread trimmer is attached to the lower end of the mounting member, which is located diagonally above and to the left of the needle attached to the lower end of the needle bar when facing the front of the sewing machine head, so that the needle has enough thread when trimming the thread. There will now be enough length left and the thread will not come off the needle when the needle bar is raised. Further, since a thread guide section is formed at the lower end of the face plate from the rear end to the front end, the thread is guided along the thread guide section and can be easily drawn into the thread cutter, etc., thereby providing various effects.
第1図は従来例に係るミシンの糸切り具の糸切
り動作を示す斜視図、第2図から第6図は本考案
の実施例に係り、第2図はミシンの糸切り具の平
面図、第3図は第2図の−矢視縦断面図、第
4図は第2図の−矢視縦断面図、第5図は糸
切り具の分解斜視図、第6図はミシン頭部に装着
された糸切り装置の糸切り動作を示す斜視図であ
る。
4は針棒、5は針、10はミシンの糸切り装
置、11は糸切り具、12は取付け部材の一例た
る面板、12aは糸案内部、13は取付け台、1
3dは糸導入部、14は刃物、14aは刃部、1
9はミシン頭部である。
Fig. 1 is a perspective view showing the thread cutting operation of a thread cutting tool of a sewing machine according to a conventional example, Figs. 2 to 6 relate to an embodiment of the present invention, and Fig. 2 is a plan view of the thread cutting tool of a sewing machine. , Fig. 3 is a longitudinal sectional view taken in the direction of - arrow in Fig. 2, Fig. 4 is a longitudinal sectional view taken in - arrow direction in Fig. 2, Fig. 5 is an exploded perspective view of the thread cutter, and Fig. 6 is a sewing machine head. FIG. 3 is a perspective view showing the thread cutting operation of the thread cutting device attached to the machine. 4 is a needle bar, 5 is a needle, 10 is a thread cutting device of the sewing machine, 11 is a thread cutting tool, 12 is a face plate which is an example of a mounting member, 12a is a thread guide portion, 13 is a mounting base, 1
3d is a thread introduction part, 14 is a blade, 14a is a blade part, 1
9 is a sewing machine head.
Claims (1)
方位置のミシン機枠の一部に装着され、糸案内部
と刃部からなるミシンの糸切り装置において、取
付け台13と、刃物14と、取付部材12とを有
し、前記取付け台13を水平部13aと直立部1
3bとでL字状に形成し、該水平部に前記刃物1
4を固着して水平部に形成した糸導入部13dと
前記刃物14の刃部14aとを交差せしめ、前記
取付け台13の直立部13bを前記取付部材12
に装着して前記水平部13aを前記取付部材12
から直角に突出せしめ、該取付部材の端縁に斜め
に面取りされた案内部12aを形成して構成した
ことを特徴とするミシンの糸切り装置の構造。 In a sewing machine thread trimming device that is attached to a part of the sewing machine frame above the needle attached to the lower end of the needle bar that moves up and down, and consists of a thread guide section and a blade section, a mounting base 13, a blade 14, , a mounting member 12, and the mounting base 13 is connected to a horizontal portion 13a and an upright portion 1.
3b to form an L-shape, and the cutter 1 is attached to the horizontal part.
The thread introduction part 13d, which is formed in the horizontal part by fixing 4, intersects the blade part 14a of the cutter 14, and the upright part 13b of the mounting base 13
by attaching the horizontal portion 13a to the mounting member 12.
1. A structure of a thread cutting device for a sewing machine, characterized in that a guide portion 12a is formed at an end edge of the mounting member at a right angle and is chamfered at an angle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7304083U JPS59178980U (en) | 1983-05-18 | 1983-05-18 | Structure of sewing machine thread cutting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7304083U JPS59178980U (en) | 1983-05-18 | 1983-05-18 | Structure of sewing machine thread cutting device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59178980U JPS59178980U (en) | 1984-11-29 |
JPS6349269Y2 true JPS6349269Y2 (en) | 1988-12-19 |
Family
ID=30203177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7304083U Granted JPS59178980U (en) | 1983-05-18 | 1983-05-18 | Structure of sewing machine thread cutting device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59178980U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH667474A5 (en) * | 1985-09-10 | 1988-10-14 | Gegauf Fritz Ag | Thread cutting and clamping device for sewing machine |
JP2020081728A (en) | 2018-11-30 | 2020-06-04 | ブラザー工業株式会社 | sewing machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5845676Y2 (en) * | 1979-10-12 | 1983-10-17 | リツカ−株式会社 | sewing machine thread cutting device |
-
1983
- 1983-05-18 JP JP7304083U patent/JPS59178980U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59178980U (en) | 1984-11-29 |
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