JPH01145374U - - Google Patents
Info
- Publication number
- JPH01145374U JPH01145374U JP3923988U JP3923988U JPH01145374U JP H01145374 U JPH01145374 U JP H01145374U JP 3923988 U JP3923988 U JP 3923988U JP 3923988 U JP3923988 U JP 3923988U JP H01145374 U JPH01145374 U JP H01145374U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- spline shaft
- manual operation
- selection device
- bracket
- 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
Landscapes
- Sewing Machines And Sewing (AREA)
Description
第１図は本考案に係るカム選択装置の要部の斜
視図、第２図は同装置の一部を切欠いた正面図、
第３図は同平面図、第４図は第２図のＡ−Ａ線断
面図、第５図は同Ｂ−Ｂ線断面図、第６図は側面
図、第７図は従来例を示す図、第８図はカム面に
おける従来のカム追従子の軌跡を示す図である。
１……主軸、２……積層カム、４……スプライ
ン軸、５……ブラケツト、６……案内軸、７……
ネジピン、８……螺旋溝、１０……カム追従子、
２１……位置決め用のカム、３１……板バネ。
FIG. 1 is a perspective view of the main parts of the cam selection device according to the present invention, and FIG. 2 is a partially cutaway front view of the device.
Fig. 3 is a plan view of the same, Fig. 4 is a sectional view taken along the line A-A of Fig. 2, Fig. 5 is a sectional view taken along the line B-B of Fig. 2, Fig. 6 is a side view, and Fig. 7 shows the conventional example. FIG. 8 is a diagram showing the locus of a conventional cam follower on a cam surface. 1... Main shaft, 2... Laminated cam, 4... Spline shaft, 5... Bracket, 6... Guide shaft, 7...
Screw pin, 8... spiral groove, 10... cam follower,
21... Cam for positioning, 31... Leaf spring.
Claims (1)
行して回転可能に支承されるスプライン軸と、該
軸に回転かつ摺動可能に軸支され、基部に捩込ん
だネジピンをスプライン軸の螺旋溝に係合させた
カム追従子と、カム追従子と一体となつて動くよ
うにスプライン軸に回動可能に軸支され、その動
きが伝動機構を介して針棒に伝えられるブラケツ
トと、スプライン軸に固着される位置決め用のカ
ムと、ブラケツトに取付けられ、位置決め用のカ
ムに係合して該カムの動きを拘束するバネと、ス
プライン軸を回動操作するための手動操作機構と
からなるカム選択装置。 (2) 手動操作機構はミシン外部に露出する手動
操作部材を有し、手動操作部材とスプライン軸を
連結する機構中には遊びが設けられ、カム追従子
と一体化されたスプライン軸の動きが遊びによつ
て吸収され、手動操作部材に及ばないようにされ
る請求項第１記載のジグザグミシンのカム選択装
置。 (3) バネは位置決め用のカムに押付けられる反
作用でブラケツトを一回転方向に付勢し、カム追
従子をカムに弾接させる作用を行う請求項第１記
載のジグザグミシンのカム選択装置。[Claims for Utility Model Registration] (1) A spline shaft rotatably supported in parallel with a laminated cam rotationally driven by a main shaft; A cam follower, which has a screwed screw pin engaged with a helical groove of a spline shaft, is rotatably supported on the spline shaft so as to move in unison with the cam follower, and its movement is transmitted via a transmission mechanism. A bracket that transmits information to the needle bar, a positioning cam that is fixed to the spline shaft, a spring that is attached to the bracket and engages with the positioning cam to restrain the movement of the cam, and a rotation operation of the spline shaft. A cam selection device consisting of a manual operation mechanism for (2) The manual operation mechanism has a manual operation member exposed outside the sewing machine, and play is provided in the mechanism that connects the manual operation member and the spline shaft to prevent movement of the spline shaft integrated with the cam follower. A cam selection device for a zigzag sewing machine according to claim 1, wherein the cam selection device is absorbed by play and is prevented from reaching a manual operation member. (3) The cam selection device for a zigzag sewing machine according to claim 1, wherein the spring biases the bracket in one rotational direction by a reaction force of being pressed against the positioning cam, thereby causing the cam follower to come into elastic contact with the cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988039239U JPH0719422Y2 (en) | 1988-03-24 | 1988-03-24 | Cam selection device of zigzag sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988039239U JPH0719422Y2 (en) | 1988-03-24 | 1988-03-24 | Cam selection device of zigzag sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01145374U true JPH01145374U (en) | 1989-10-05 |
| JPH0719422Y2 JPH0719422Y2 (en) | 1995-05-10 |
Family
ID=31265750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988039239U Expired - Lifetime JPH0719422Y2 (en) | 1988-03-24 | 1988-03-24 | Cam selection device of zigzag sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719422Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5740056U (en) * | 1980-08-20 | 1982-03-04 | ||
| JPS5932494A (en) * | 1982-08-13 | 1984-02-21 | リツカ−株式会社 | Stitch pattern selector of sewing machine |
-
1988
- 1988-03-24 JP JP1988039239U patent/JPH0719422Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5740056U (en) * | 1980-08-20 | 1982-03-04 | ||
| JPS5932494A (en) * | 1982-08-13 | 1984-02-21 | リツカ−株式会社 | Stitch pattern selector of sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0719422Y2 (en) | 1995-05-10 |
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