JPH07323172A - Structure of thread cutting tool of sewing machine - Google Patents
Structure of thread cutting tool of sewing machineInfo
- Publication number
- JPH07323172A JPH07323172A JP6141296A JP14129694A JPH07323172A JP H07323172 A JPH07323172 A JP H07323172A JP 6141296 A JP6141296 A JP 6141296A JP 14129694 A JP14129694 A JP 14129694A JP H07323172 A JPH07323172 A JP H07323172A
- Authority
- JP
- Japan
- Prior art keywords
- thread
- thread cutting
- sewing machine
- cutting blade
- groove
- 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
- 238000005520 cutting process Methods 0.000 title claims abstract description 49
- 238000009958 sewing Methods 0.000 title claims abstract description 19
- 238000009966 trimming Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はミシンの上糸或いは上下
両糸を切るためにミシン機枠に取り付けられる糸切り具
の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a thread cutter attached to a machine frame of a sewing machine in order to cut an upper thread or upper and lower threads of a sewing machine.
【０００２】[0002]
【従来の技術】従来よりミシンの上糸或いは上下両糸を
切るためにミシン機枠に取り付けられる糸切り具はある
が、糸切り刃を覆うカバーが金属製であった為に布さば
き作業中や糸切断作業中に手指がカバーに接触して傷つ
くことがあり、又心理的にも手を近づけ難い銀色の色彩
を有していた。2. Description of the Related Art Conventionally, there is a thread cutter attached to a machine frame of a sewing machine in order to cut the upper thread or upper and lower threads of a sewing machine, but since a cover for covering the thread cutting blade is made of metal, cloth is being separated. Fingers may come into contact with the cover during the yarn cutting operation and may be damaged, and it has a silver color that makes it difficult to reach the hand psychologically.
【０００３】[0003]
【発明が解決しようとする課題】本発明はミシンの上糸
或いは上下両糸を切る為にミシン機枠に取り付けられる
糸切り具の糸切り刃のカバーを糸が触れても傷がつかな
い構造にすると共に心理的にも不安感を抱かせない色彩
の構造にしようとするものである。SUMMARY OF THE INVENTION According to the present invention, a structure is provided in which a thread is not damaged even if the thread touches a cover of a thread cutting blade of a thread cutter attached to a machine frame for cutting the upper thread or upper and lower threads of a sewing machine. At the same time, we try to create a color structure that does not cause psychological anxiety.
【０００４】[0004]
【課題を解決するための手段】本発明はミシンの上糸或
いは上下両糸を切る為にミシン機枠に取り付けられる糸
切り具の糸切り刃カバーをミシン機枠又はミシン機枠に
装着される面板の色彩と同色可能で且つ角が丸味を帯び
た合成樹脂材にて成型化したものを提供するものであ
る。According to the present invention, a thread cutting blade cover of a thread cutter attached to a machine frame for cutting the upper thread or upper and lower threads of a sewing machine is attached to the machine frame or the machine frame. The present invention provides a molded product made of a synthetic resin material having the same color as that of the face plate and rounded corners.
【０００５】[0005]
【作用】本発明はアーム機枠の先端顎部に装着される面
板の下端に設けられるミシンの糸切り具において、前記
面板の下端に取り付けられる糸切り取付板に糸導入溝が
形成される水平部を設け、該水平部に傾斜刃が形成され
る糸切り刃を載置し、前記水平部の糸導入溝と一致する
糸導入溝が形成され、前記糸切り刃を覆う糸切りカバー
を前記水平部に固着し前記糸切りカバーに上面角部が曲
線にて屈曲の垂下部を形成し、該垂下部の内側面を前記
糸切り刃の側縁に当接させることにより糸切り刃を強固
に保持すると共に糸切り作業者の手又は指を保護し且つ
作業者が糸切り作業の際に不安な心理状態にならず安心
して作業が行える様にしたことを特徴とするものであ
る。According to the present invention, in a thread trimmer for a sewing machine provided at a lower end of a face plate mounted on a tip jaw of an arm machine frame, a thread introducing groove is formed in a thread trimmer mounting plate attached to a lower end of the face plate. A thread cutting blade on which a slanting blade is formed is mounted on the horizontal portion, and a thread introducing groove corresponding to the thread introducing groove of the horizontal portion is formed. The thread cutting blade is firmly fixed to a horizontal portion, and the upper surface corner portion of the thread cutting cover is curved to form a bent hanging portion. The present invention is characterized in that the hand or finger of the thread cutting worker is protected, and that the worker can work with peace of mind without being in an uneasy psychological state during the thread cutting work.
【０００６】[0006]
【実施例】本発明の実施例の構造を図面により以下に述
べる。ミシン機枠１は垂直の柱状部から上方で水平に延
び端部に顎部が形成のアーム機枠２と前記柱状部を支え
る水平なベッド機枠３とから成り、前記アーム機枠２内
には駆動軸（図示せず）が回転可能に支持され、該駆動
軸の回転に連動して上下往復動せしめられる針棒４が支
持され、該針棒の下端にミシン針５が固着せしめられて
いる。The structure of an embodiment of the present invention will be described below with reference to the drawings. The sewing machine frame 1 is composed of an arm machine frame 2 that extends horizontally upward from a vertical columnar portion and has a jaw portion formed at an end thereof, and a horizontal bed machine frame 3 that supports the columnar portion. A drive shaft (not shown) is rotatably supported, and a needle bar 4 that is reciprocally moved up and down in conjunction with the rotation of the drive shaft is supported. A sewing machine needle 5 is fixed to the lower end of the needle bar. There is.
【０００７】前記針棒４に略平行に押え棒６がアーム機
枠２に支持され、押え棒６の下端に布押え７が固着せし
められる。A presser bar 6 is supported on the arm frame 2 substantially parallel to the needle bar 4, and a cloth presser 7 is fixed to the lower end of the presser bar 6.
【０００８】前記ベッド機枠３には前記針５の下位置に
針板８が装着せしめられ、該針板の下方に糸輪捕捉装置
（図示せず）が前記駆動軸の回転に連動して運動せしめ
られ、前記針５と調時して交差し針５の持つ上糸と糸輪
捕捉装置が持つ下糸とを交絡せしめて本縫縫目を構成す
る。前記アーム機枠２の顎部下端には糸切り具９が取り
付けられている。A needle plate 8 is mounted on the bed machine frame 3 below the needle 5, and a thread catching device (not shown) is provided below the needle plate in association with the rotation of the drive shaft. When the needle 5 is moved, it crosses the needle 5 in time, and the upper thread of the needle 5 and the lower thread of the thread catcher are entangled with each other to form a lock stitch. A thread cutter 9 is attached to the lower end of the jaw of the arm machine frame 2.
【０００９】該糸切り具は前記アーム機枠２の顎部にて
支持されて前記駆動軸の回転に連動して運動せしめられ
る針棒４などをカバーする為に顎部に取り付けられる面
板１０の下端に固着されるＬ字形の糸切り取付板１１と
該糸切り取付板の水平部１２に突出の円形ボス部１３に
円形穴１４を嵌めて水平部上に載置される糸切り刃１５
と、該糸切り刃の上から糸切り刃を挟む如くにねじ１
６，１６で固定される糸切り刃カバー１７とで構成され
る。The thread cutter is supported by the jaw of the arm machine frame 2 and of a face plate 10 attached to the jaw to cover the needle bar 4 and the like which is moved in association with the rotation of the drive shaft. An L-shaped thread trimming attachment plate 11 fixed to the lower end and a thread cutting blade 15 placed on the horizontal portion by fitting a circular hole 14 into a protruding circular boss portion 13 in the horizontal portion 12 of the thread trimming attachment plate.
And screw 1 so that the thread cutting blade is sandwiched from above the thread cutting blade.
6, 16 and a thread cutting blade cover 17 fixed.
【００１０】糸切り具９の構成を更に詳述すれば糸切り
取付板１１はＬ字形で水平部１２には糸導入溝１８が形
成され、糸切り刃１４に形成される傾斜刃１９は取付け
られた状態では前記糸導入溝１８の適宜の位置にて溝と
刃とが互いに交差せしめられており、又、糸切りカバー
１７は着色可能な合成樹脂材にて成型され水平部２０と
該水平部の端部より下方に垂下する垂下部２１が形成さ
れており、前記糸切りカバーの水平部２０には前記糸切
取付板１１の糸導入溝１８に略一致する糸導入溝２２が
形成され且つ上面角部は曲線にて屈曲され、又垂直部２
１の内側面は糸切り刃１５の側縁に当接して糸切り刃１
５が盲動されぬ様押えている（図４参照）。More specifically, the structure of the thread cutting device 9 will be described. The thread cutting mounting plate 11 is L-shaped, a thread introducing groove 18 is formed in the horizontal portion 12, and an inclined blade 19 formed in the thread cutting blade 14 is attached. In this state, the groove and the blade are made to intersect with each other at an appropriate position of the thread introducing groove 18, and the thread cutting cover 17 is molded with a colorable synthetic resin material and the horizontal portion 20 and the horizontal portion 20. A hanging portion 21 that hangs downward from the end of the thread cutting portion is formed, and a thread introducing groove 22 that substantially matches the thread introducing groove 18 of the thread cutting attachment plate 11 is formed in the horizontal portion 20 of the thread cutting cover. Moreover, the corners of the upper surface are bent in a curved line, and the vertical portion 2
The inner surface of 1 comes into contact with the side edge of the thread cutting blade 15 and
5 is pressed so as not to be blindly moved (see Fig. 4).
【００１１】本発明は以上の如く構成されているので、
ミシン針が保持する上糸及び針板８の針穴から上に出て
糸輪捕捉部が保持する下糸の端部の夫々を左手の指で摘
んで前記面板１０の下端の縁に沿って糸切りカバー２０
の糸導入溝２２内に導入されれば溝内に引き入れられる
に従い糸切り刃の傾斜した刃にこすられて切断せしめら
れる。糸の溝への導入の際、手や指が糸切りカバーの角
に接触しても糸切りカバーの角が丸味を帯びているの
で、指などが傷つくことが生じない。Since the present invention is constructed as described above,
The upper thread held by the sewing machine needle and the end of the lower thread that is raised from the needle hole of the needle plate 8 and held by the thread catching portion are pinched with the fingers of the left hand, and along the edge of the lower end of the face plate 10. Thread trimming cover 20
If the thread is introduced into the thread introduction groove 22, the thread is rubbed by the slanting blade of the thread cutting blade as it is drawn into the groove and cut. When the thread is introduced into the groove, even if a hand or a finger comes into contact with the corner of the thread cutting cover, the corner of the thread cutting cover is rounded so that the finger or the like is not damaged.
【００１２】[0012]
【効果】本発明は以上の如く構成され、且つ作用するの
で針糸又は下糸の切断の際にミシン操作者の指や手が糸
切りカバーに触れても傷つくことが全くなくなり、更に
糸切り刃がしっかりとカバーにて取付板に固定されてい
るので糸切り作業が確実に行うことが出来る実用上効果
大なるものである。[Effects] Since the present invention is constructed and operates as described above, even if the finger or hand of the sewing machine operator touches the thread cutting cover when the needle thread or the bobbin thread is cut, the thread cutting cover is not damaged at all. Since the blade is firmly fixed to the mounting plate by the cover, thread cutting work can be reliably performed, which is a great practical effect.
図面は本発明の実施例を示すものにして、図１は本発明
の実施例をミシンに装着した状態を示すミシン外観図、
図２は本発明にて糸を切断する状態を示す状態図、図３
は本発明の実施例の分解斜視図、図４は本発明の実施例
の要部断面図である。 ２…アーム機枠 １０…面板 １１…糸切り取付板 １２…水平部 １５…糸切り刃 １８…糸導入溝 ２０…糸切りカバー ２１…垂下部The drawings show an embodiment of the present invention, and FIG. 1 is an external view of the sewing machine showing a state in which the embodiment of the present invention is mounted on a sewing machine.
2 is a state diagram showing a state in which the yarn is cut in the present invention, FIG.
FIG. 4 is an exploded perspective view of an embodiment of the present invention, and FIG. 4 is a cross-sectional view of essential parts of the embodiment of the present invention. 2 ... Arm machine frame 10 ... Face plate 11 ... Thread trimming attachment plate 12 ... Horizontal portion 15 ... Thread trimming blade 18 ... Thread introducing groove 20 ... Thread trimming cover 21 ... Hanging part
Claims (1)
設けられるミシンの糸切り具において、前記面板１０の
下端に取り付けられる糸切り取付板１１に糸導入溝１８
が形成される水平部１２を設け、該水平部に傾斜刃１９
が形成される糸切り刃１５を載置し前記水平部１２の糸
導入溝１８と一致する糸導入溝２２が形成され前記糸切
り刃１５を覆う糸切りカバー２０を前記水平部１２に固
着し、前記糸切りカバー２０に上面角部が曲線にて屈曲
の垂下部２１を形成し、該垂下部の内側面を前記糸切り
刃１５の側縁に当接させることを特徴とするミシンの糸
切り具の構造。In a thread cutting tool of a sewing machine provided at a lower end of a face plate 10 attached to a tip jaw portion of an arm machine frame 2, a thread introducing groove 18 is provided in a thread trimming attachment plate 11 attached to a lower end of the face plate 10.
Is provided with a horizontal portion 12 and the inclined blade 19 is provided on the horizontal portion.
The thread cutting blade 15 on which the thread cutting blade 15 is formed is placed, and the thread cutting groove 20 corresponding to the thread introducing groove 18 of the horizontal portion 12 is formed, and the thread cutting cover 20 that covers the thread cutting blade 15 is fixed to the horizontal portion 12. A thread of a sewing machine characterized in that the thread cutting cover 20 is formed with a hanging portion 21 having a curved upper surface corner portion, and an inner side surface of the hanging portion is brought into contact with a side edge of the thread cutting blade 15. The structure of the cutting tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6141296A JPH07323172A (en) | 1994-05-31 | 1994-05-31 | Structure of thread cutting tool of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6141296A JPH07323172A (en) | 1994-05-31 | 1994-05-31 | Structure of thread cutting tool of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07323172A true JPH07323172A (en) | 1995-12-12 |
Family
ID=15288588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6141296A Pending JPH07323172A (en) | 1994-05-31 | 1994-05-31 | Structure of thread cutting tool of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07323172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200447773Y1 (en) * | 2007-07-10 | 2010-02-17 | 치 시앙 인더스트리얼 캄퍼니 리미티드 | Automatic yarn cutting device of sewing machine |
-
1994
- 1994-05-31 JP JP6141296A patent/JPH07323172A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200447773Y1 (en) * | 2007-07-10 | 2010-02-17 | 치 시앙 인더스트리얼 캄퍼니 리미티드 | Automatic yarn cutting device of sewing machine |
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