JPS61143580U - - Google Patents
Info
- Publication number
- JPS61143580U JPS61143580U JP2911485U JP2911485U JPS61143580U JP S61143580 U JPS61143580 U JP S61143580U JP 2911485 U JP2911485 U JP 2911485U JP 2911485 U JP2911485 U JP 2911485U JP S61143580 U JPS61143580 U JP S61143580U
- Authority
- JP
- Japan
- Prior art keywords
- inner hook
- end surface
- peripheral edge
- bobbin case
- hook
- 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 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 3
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
第１図は本考案に係るミシンのボビンケースの
第一の実施例を示す正面図、第２図は第１図のボ
ビンケースを半回転中釜に装着した状態を示す平
面図、第３図はボビンケースの第２の実施例を示
す平面図、第４図は同第３の実施例を示す正面図
、第５図は同第４の実施例を示す正面図、第６図
イ〜ニは従来のボビンケースを用いて中釜の回転
により針糸がボビンケースに当接する状態を示す
正面図、第７図は第６図ハの平面図、第８図は第
５図Ｚ―Ｚ線の断面図である。
１…中釜、１ａ…剣先、１ｂ…周縁部、２…針
糸、３…ボビンケース、３ａ…上端面、３ｂ…下
端面、３ｃ…引き上げ板、３ｄ…中央溝、３ｅ…
案内面、３ｆ…段部、３ｇ…端面、３ｈ…外周部
、４…針板、５…針穴、Ａ…接続部、Ｓ…接線、
Ｙ…直交軸線、θ…乗り上げ角。
Fig. 1 is a front view showing a first embodiment of the bobbin case of a sewing machine according to the present invention, Fig. 2 is a plan view showing the bobbin case of Fig. 1 attached to a half-rotation inner hook, and Fig. 3 is a plan view showing the second embodiment of the bobbin case, FIG. 4 is a front view showing the third embodiment, FIG. 5 is a front view showing the fourth embodiment, and FIGS. 7 is a front view showing the state in which the needle thread comes into contact with the bobbin case due to the rotation of the hook using a conventional bobbin case, FIG. 7 is a plan view of FIG. 6 C, and FIG. 8 is a Z-Z line in FIG. FIG. 1... Inner hook, 1a... Sword tip, 1b... Periphery, 2... Needle thread, 3... Bobbin case, 3a... Upper end surface, 3b... Lower end surface, 3c... Pulling plate, 3d... Central groove, 3e...
Guide surface, 3f...Step part, 3g...End face, 3h...Outer circumferential part, 4...Throat plate, 5...Needle hole, A...Connection part, S...Tangential line,
Y... Orthogonal axis, θ... Rising angle.
Claims (1)
も突出しているボビンケースにおいて、 中釜の回転に応じて針糸が中釜の周縁部から前
端面に円滑に移動するように針糸への摺動抵抗が
少さくなるような、前端面の接続部Ａを中釜の周
縁部に対して針糸の摺動抵抗力を小さくする所定
角度とする如く形成したミシンのボビンケース。[Scope of Claim for Utility Model Registration] In a bobbin case in which the front end surface provided with a lifting plate protrudes beyond the peripheral edge of the inner hook, the needle thread smoothly moves from the peripheral edge of the inner hook to the front end surface as the inner hook rotates. The connection part A on the front end surface is formed at a predetermined angle with respect to the peripheral edge of the hook so that the sliding resistance to the needle thread is reduced as the needle moves to the inner hook. Sewing machine bobbin case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2911485U JPS61143580U (en) | 1985-02-28 | 1985-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2911485U JPS61143580U (en) | 1985-02-28 | 1985-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61143580U true JPS61143580U (en) | 1986-09-04 |
Family
ID=30527629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2911485U Pending JPS61143580U (en) | 1985-02-28 | 1985-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61143580U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714772U (en) * | 1980-07-01 | 1982-01-26 | ||
| JPS5916800A (en) * | 1982-07-20 | 1984-01-27 | 前田 弘 | Manufacture of china-like decorative material |
-
1985
- 1985-02-28 JP JP2911485U patent/JPS61143580U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5714772U (en) * | 1980-07-01 | 1982-01-26 | ||
| JPS5916800A (en) * | 1982-07-20 | 1984-01-27 | 前田 弘 | Manufacture of china-like decorative material |
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