JPS6414380U - - Google Patents
Info
- Publication number
- JPS6414380U JPS6414380U JP10901387U JP10901387U JPS6414380U JP S6414380 U JPS6414380 U JP S6414380U JP 10901387 U JP10901387 U JP 10901387U JP 10901387 U JP10901387 U JP 10901387U JP S6414380 U JPS6414380 U JP S6414380U
- Authority
- JP
- Japan
- Prior art keywords
- needle thread
- thread
- phase
- hook
- elastic body
- 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
- 230000002265 prevention Effects 0.000 claims description 6
- 238000009958 sewing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
図面は本考案の実施例に係り、第1図は本考案
のワライ防止機構の作動機構説明図、第2図は上
糸押圧作用の説明図、第3図及び第4図は上糸の
支持体の内釜装着状態の説明図であり、第3図は
上面図、第4図はA矢視図、第5図は他の実施例
のワライ防止機構の作動機構説明図、第6図は作
動する押圧体の斜視図、第7図は釜の上面図、第
8図は本考案のワライ防止装置を組込んだミシン
の外観図、第9図はミシンの駆動機構の説明図、
第10図は縫い目の説明図、第11図は従来の縫
い目形成過程のワライ発生状態の説明図、第12
図は本考案のワライ防止装置を用いた縫い目形成
過程の説明図であり、32は下糸、33は下糸巻
、34は内釜、35は弾性体、36は上糸押圧体
、37は支持体、38はロツド、39は従動体、
40は頭付きピン、41はカム、42はバネ、4
3は磁石、44は柔軟性部材、45は押圧体、4
6は磁石である。
The drawings relate to embodiments of the present invention; Fig. 1 is an explanatory diagram of the operating mechanism of the warp prevention mechanism of the present invention, Fig. 2 is an explanatory diagram of the upper thread pressing action, and Figs. 3 and 4 are illustrations of the upper thread support. FIG. 3 is a top view, FIG. 4 is a view in the direction of arrow A, FIG. 5 is an explanatory diagram of the operating mechanism of the warp prevention mechanism of another embodiment, and FIG. FIG. 7 is a top view of the hook; FIG. 8 is an external view of a sewing machine incorporating the warp prevention device of the present invention; FIG. 9 is an explanatory diagram of the drive mechanism of the sewing machine;
Fig. 10 is an explanatory diagram of a seam, Fig. 11 is an explanatory diagram of a state where cracks occur in the conventional seam forming process, and Fig. 12 is an explanatory diagram of a seam formation process.
The figure is an explanatory view of the seam forming process using the warp prevention device of the present invention, where 32 is a lower thread, 33 is a lower thread winder, 34 is an inner hook, 35 is an elastic body, 36 is an upper thread presser, and 37 is a support. body, 38 is rod, 39 is driven body,
40 is a headed pin, 41 is a cam, 42 is a spring, 4
3 is a magnet, 44 is a flexible member, 45 is a pressing body, 4
6 is a magnet.
Claims (1)
れている上糸糸輪の釜から縫い目側の上糸経路上
に常に上糸に接触しない位置に配置され押圧され
た上糸が当接することにより上糸に抵抗を与える
弾性体と、該弾性体に対向して配置され作動する
ことにより、前記上糸に作用して前記弾性体に押
圧する第1の位置と前記上糸を解放する第2の位
置に移動可能な上糸押圧体と、該上糸押圧体を位
相に応じて作動させる作動手段とにより構成する
ミシンのワライ防止装置。 (2) 前記押圧体の作動する第1の位置は縫い目
形成サイクルの上糸を捕捉した釜が前記上糸糸輪
を最大に押し広げる位相から該上糸糸輪が押圧部
材より脱出する直前の位相までの位相区間である
ことを特徴とする実用新案登録請求の範囲第1項
に記載のミシンのワライ防止装置。[Scope of Claim for Utility Model Registration] (1) During the seam forming cycle, the needle thread loop captured by the hook is placed and pressed on the needle thread path on the seam side from the hook at a position where it does not always contact the needle thread. an elastic body that provides resistance to the needle thread when the needle thread comes into contact with the needle thread; a first position that is disposed opposite to the elastic body and operates to act on the needle thread and press it against the elastic body; A warp prevention device for a sewing machine comprising an upper thread pressing member movable to a second position for releasing the upper thread, and an actuating means for operating the upper thread pressing member according to a phase. (2) The first position in which the pressing body operates is from the phase in which the hook that has captured the needle thread in the stitch forming cycle pushes the needle thread ring to its maximum extent, to just before the needle thread ring escapes from the pressing member. The warp prevention device for a sewing machine according to claim 1, which is a phase interval up to a phase.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987109013U JPH0523190Y2 (en) | 1987-07-17 | 1987-07-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987109013U JPH0523190Y2 (en) | 1987-07-17 | 1987-07-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6414380U true JPS6414380U (en) | 1989-01-25 |
JPH0523190Y2 JPH0523190Y2 (en) | 1993-06-14 |
Family
ID=31344881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987109013U Expired - Lifetime JPH0523190Y2 (en) | 1987-07-17 | 1987-07-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0523190Y2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56151088A (en) * | 1980-04-24 | 1981-11-21 | Janome Sewing Machine Co Ltd | Regulator for tension of lower cotton of sewing machine |
JPS56168067U (en) * | 1980-05-17 | 1981-12-12 | ||
JPS5812685A (en) * | 1981-07-13 | 1983-01-24 | ザ シンガー カンパニー エヌ.ブイ. | Main stitching sewing machine |
JPS6110630U (en) * | 1984-06-22 | 1986-01-22 | 株式会社クボタ | Threshing machine grain leakage prevention structure |
-
1987
- 1987-07-17 JP JP1987109013U patent/JPH0523190Y2/ja not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56151088A (en) * | 1980-04-24 | 1981-11-21 | Janome Sewing Machine Co Ltd | Regulator for tension of lower cotton of sewing machine |
JPS56168067U (en) * | 1980-05-17 | 1981-12-12 | ||
JPS5812685A (en) * | 1981-07-13 | 1983-01-24 | ザ シンガー カンパニー エヌ.ブイ. | Main stitching sewing machine |
JPS6110630U (en) * | 1984-06-22 | 1986-01-22 | 株式会社クボタ | Threshing machine grain leakage prevention structure |
Also Published As
Publication number | Publication date |
---|---|
JPH0523190Y2 (en) | 1993-06-14 |
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