JPH0376573U - - Google Patents
Info
- Publication number
- JPH0376573U JPH0376573U JP13879589U JP13879589U JPH0376573U JP H0376573 U JPH0376573 U JP H0376573U JP 13879589 U JP13879589 U JP 13879589U JP 13879589 U JP13879589 U JP 13879589U JP H0376573 U JPH0376573 U JP H0376573U
- Authority
- JP
- Japan
- Prior art keywords
- looper
- rotation
- shaft
- double ring
- oscillation
- 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 4
- 238000006243 chemical reaction Methods 0.000 claims 4
- 230000010355 oscillation Effects 0.000 claims 4
- 238000006073 displacement reaction Methods 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
第１図は本考案に係る同一軸による下ルーパと
二重環ルーパの駆動装置の一実施例を示す要部斜
視図、第２図は同底面図、第３図は第１図Ａ視に
おける一部切り欠き正面図、第４図は第１図Ｂ視
における一部省略左側面図、第５図イ乃至ニはミ
シン針の位置とルーパの位置関係を示す説明図、
第６図は従来の下ルーパと二重環ルーパ駆動装置
を示す要部斜視図である。
１……下ルーパ、２……二重環ルーパ、３……
主軸、７……ルーパ揺動カム、８……ルーパ揺動
ロツド、９……ルーパ軸、１０……ルーパ揺動腕
、１２……下ルーパ揺動腕、１３……スラスト軸
受機構、２０……二重環ルーパ揺動腕、２１……
二重環連結腕、２２……二重環摺動ロツド、２３
……二重環摺動カム、３０……上ルーパ、３２，
３３……ミシン針。
Fig. 1 is a perspective view of essential parts showing an embodiment of a driving device for a lower looper and a double ring looper based on the same shaft according to the present invention, Fig. 2 is a bottom view of the same, and Fig. 3 is a view from A in Fig. 1. 4 is a partially cutaway left side view as viewed from FIG. 1B, and FIGS. 5A to 5D are explanatory views showing the positional relationship between the sewing machine needle and the looper.
FIG. 6 is a perspective view of essential parts of a conventional lower looper and double ring looper drive device. 1...lower looper, 2...double ring looper, 3...
Main shaft, 7... Looper swinging cam, 8... Looper swinging rod, 9... Looper shaft, 10... Looper swinging arm, 12... Lower looper swinging arm, 13... Thrust bearing mechanism, 20... ...Double ring looper swinging arm, 21...
Double ring connecting arm, 22...Double ring sliding rod, 23
...Double ring sliding cam, 30...Upper looper, 32,
33... Sewing machine needle.
Claims (1)
向して構成される下ルーパと二重環ルーパからな
るルーパ機構において、一本のルーパ軸に対して
、二重環ルーパの基端を軸着し、また下ルーパの
基端を軸方向摺動自在に軸設し回動方向のみ回動
連結すると共に、該ルーパ軸をミシンの主軸を駆
動源として適宜回転駆動伝達機構及び回転／揺動
変換機構を介して所定の回動範囲で往復揺回動変
位すると同時に、適宜回転／摺動変換機構を介し
て軸方向に所定の範囲で、上記往復揺回動変位と
同期して回動及び摺動変位駆動することを特徴と
する同一軸による下ルーパと二重環ルーパの駆動
装置。 (2) 回転／揺動変換機構がカム装置とリンク装
置であることを特徴とする請求項１記載の同一軸
による下ルーパと二重環ルーパの駆動装置。 (3) 回転／摺動変換機構がカム装置であること
を特徴とする請求項１記載の同一軸による下ルー
パと二重環ルーパの駆動装置。[Claims for Utility Model Registration] (1) In a looper mechanism consisting of a lower looper and a double ring looper located below the needle of a sewing machine and configured to face an upper looper mechanism, , the base end of the double ring looper is attached to the shaft, and the base end of the lower looper is installed on the shaft so that it can freely slide in the axial direction, and is rotatably connected only in the rotation direction, and the looper shaft is driven by the main shaft of the sewing machine. The reciprocating oscillation displacement is carried out within a predetermined rotation range via an appropriate rotational drive transmission mechanism and rotation/oscillation conversion mechanism, and at the same time, the above-mentioned reciprocation oscillation is carried out within a predetermined range in the axial direction via an appropriate rotation/sliding conversion mechanism. A drive device for a lower looper and a double ring looper on the same shaft, characterized by driving rotation and sliding displacement in synchronization with rotational displacement. (2) The driving device for a lower looper and a double ring looper having the same shaft as claimed in claim 1, wherein the rotation/oscillation conversion mechanism is a cam device and a link device. (3) The driving device for a lower looper and a double ring looper having the same shaft as claimed in claim 1, wherein the rotation/sliding conversion mechanism is a cam device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989138795U JPH0718391Y2 (en) | 1989-11-30 | 1989-11-30 | Drive device for lower looper and double ring looper with the same axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989138795U JPH0718391Y2 (en) | 1989-11-30 | 1989-11-30 | Drive device for lower looper and double ring looper with the same axis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0376573U true JPH0376573U (en) | 1991-07-31 |
| JPH0718391Y2 JPH0718391Y2 (en) | 1995-05-01 |
Family
ID=31685873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989138795U Expired - Lifetime JPH0718391Y2 (en) | 1989-11-30 | 1989-11-30 | Drive device for lower looper and double ring looper with the same axis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718391Y2 (en) |
-
1989
- 1989-11-30 JP JP1989138795U patent/JPH0718391Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718391Y2 (en) | 1995-05-01 |
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