JPH0473376U - - Google Patents
Info
- Publication number
- JPH0473376U JPH0473376U JP11439190U JP11439190U JPH0473376U JP H0473376 U JPH0473376 U JP H0473376U JP 11439190 U JP11439190 U JP 11439190U JP 11439190 U JP11439190 U JP 11439190U JP H0473376 U JPH0473376 U JP H0473376U
- Authority
- JP
- Japan
- Prior art keywords
- lower looper
- thread
- swinging arm
- rotating cam
- looper thread
- 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
- 238000009958 sewing Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Sewing Machines And Sewing (AREA)
Description
第１図および第２図は、この考案の一実施例を
示す図で、第１図は、回転カム、切り替え手段、
揺動腕の構成状態を示す斜視図、第２図は、揺動
腕による下ルーパー糸の屈曲および解放状態を示
す説明図、第３図は、全巻き縫い目を示す斜視図
、第４図は、オーバーロツクミシンの下ルーパー
装置を示す説明図である。
図において、１……下ルーパー糸、２……糸調
子器、３……下ルーパー揺動腕、３ｂ……下ルー
パー天秤、７……揺動腕、Ａ……切り替え手段、
Ｃ……回転カム。
1 and 2 are diagrams showing an embodiment of this invention, and FIG. 1 shows a rotating cam, a switching means,
FIG. 2 is an explanatory diagram showing the bending and release state of the lower looper thread by the swinging arm; FIG. 3 is a perspective view showing a full-wrap stitch; FIG. 4 is a perspective view showing the configuration of the swinging arm; , is an explanatory diagram showing a lower looper device of an overlock sewing machine. In the figure, 1...lower looper thread, 2...thread tension device, 3...lower looper swinging arm, 3b...lower looper take-up lever, 7...swinging arm, A...switching means,
C...Rotating cam.
Claims (1)
らに設けられる各縫い糸を交差させることで、か
がり縫いおよび全巻き縫いをなすオーバーロツク
ミシンにおいて、 ミシンの主軸に固定され主軸とともに回転する
回転カムと、 糸調子器と下ルーパー天秤との間の下ルーパー
糸を掛け持ち揺動可能に設けられる揺動腕と、 この揺動腕を前記回転カムに対して当接、離反
の切り替えをなす切り替え手段と、 を備えて構成し、 回転カムと揺動腕との当接時には、回転カムに
より揺動腕を駆動させ、この揺動腕により、 下ルーパー天秤による下ルーパー糸の糸締め時
において糸調子器と下ルーパー天秤との間の下ル
ーパー糸を屈曲させるとともに、 下ルーパー天秤による下ルーパーへの下ルーパ
ー糸繰り出し時において下ルーパー糸への屈曲を
解放し、糸調子器と下ルーパー天秤との間の下ル
ーパー糸を弛緩させるように、前記回転カム形状
を構成したことを特徴とするオーバーロツクミシ
ン。[Scope of claim for utility model registration] An overlock sewing machine that is equipped with a sewing needle, a lower looper, and an upper looper, and can perform overlock stitches and full-wrap stitches by intersecting the sewing threads provided on these, and is fixed to the main shaft of the sewing machine. A rotating cam that rotates together with the main shaft, a swinging arm that is swingably provided to hold the lower looper thread between the thread tension device and the lower looper take-up, and this swinging arm comes into contact with and separates from the rotating cam. and a switching means for switching, and when the rotating cam and the swinging arm are in contact with each other, the rotating cam drives the swinging arm, and the swinging arm causes the lower looper thread to be moved by the lower looper thread. When tightening the thread, the lower looper thread between the thread tension device and the lower looper take-up is bent, and when the lower looper thread is fed out to the lower looper by the lower looper take-up, the bending of the lower looper thread is released, and the thread tension device An overlock sewing machine characterized in that the rotating cam is configured to relax a lower looper thread between the lower looper thread and the lower looper thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11439190U JPH0740389Y2 (en) | 1990-10-31 | 1990-10-31 | Overlock sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11439190U JPH0740389Y2 (en) | 1990-10-31 | 1990-10-31 | Overlock sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0473376U true JPH0473376U (en) | 1992-06-26 |
| JPH0740389Y2 JPH0740389Y2 (en) | 1995-09-20 |
Family
ID=31862066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11439190U Expired - Fee Related JPH0740389Y2 (en) | 1990-10-31 | 1990-10-31 | Overlock sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0740389Y2 (en) |
-
1990
- 1990-10-31 JP JP11439190U patent/JPH0740389Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740389Y2 (en) | 1995-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |