JPH02109576U - - Google Patents
Info
- Publication number
- JPH02109576U JPH02109576U JP1719789U JP1719789U JPH02109576U JP H02109576 U JPH02109576 U JP H02109576U JP 1719789 U JP1719789 U JP 1719789U JP 1719789 U JP1719789 U JP 1719789U JP H02109576 U JPH02109576 U JP H02109576U
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- thread
- braking
- bobbin thread
- cutting
- 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
- 239000004744 fabric Substances 0.000 claims 4
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
第１図はこの考案の一実施例を示す底面図、第
２図は第１図に示したものの下糸切断状態を示す
底面図、第３図は従来の下糸切断装置における下
糸ボビン制動装置を示す底面図、第４図は第３図
に示したものの下糸切断状態を示す底面図である
。
６……下糸タグリ腕（下糸引き出し部材）、７
……下糸ボビン、１１……糸切り鋏（切断機構）
、｛１２……回動リンク（移動部材）、１６……
引きばね｝付勢手段、１４……ボビン押え（制動
部材）。
Fig. 1 is a bottom view showing an embodiment of this invention, Fig. 2 is a bottom view showing the lower thread cutting state of the device shown in Fig. 1, and Fig. 3 is a lower thread bobbin brake in a conventional bobbin thread cutting device. FIG. 4 is a bottom view showing the device shown in FIG. 3 in a lower thread cutting state. 6...Bobbin thread tag arm (bobbin thread pull-out member), 7
...Bobbin thread bobbin, 11...Thread trimming scissors (cutting mechanism)
, {12... Rotating link (moving member), 16...
tension spring} biasing means, 14...bobbin presser (braking member).
Claims (1)
端部から針板下方に位置する下糸ボビンに至る下
糸を捕捉し、必要量引き出す下糸引き出し部材と
、前記下糸引き出し部材により引き出された下糸
を所定の切断位置で切断する切断機構と、 前記下糸ボビンに対し接離可能に保持された制
動部材と、 前記下糸引き出し部材による下糸引き出し動作
に連動して前記制動部材を前記下糸ボビンに圧接
させるよう付勢する付勢手段とを備え、 前記制動部材を下糸ボビンに圧接させて下糸ボ
ビンの回転を制動することにより、前記下糸引き
出し動作にて布の上面に表出する上糸を布下面に
引き込むようにした下糸切断装置における下糸ボ
ビン制動装置において、 前記付勢手段は、前記下糸引き出し部材の移動
に応じて前記制動部材に対する付勢力を減少させ
るようにしたことを特徴とする下糸切断装置にお
ける下糸ボビン制動装置。 (2) 付勢手段は、一端を制動部材に掛止させた
ばねと、このばねの他端部が掛止されると共に下
糸引き出し部材に連動して移動する移動部材とよ
り成り、前記下糸引き出し部材は、その移動によ
つて制動部材との距離が変化することを特徴とす
る請求項１記載の下糸切断装置における下糸ボビ
ン制動装置。[Claims for Utility Model Registration] (1) A bobbin thread drawer that captures the bobbin thread from the seam end of the fabric to the bobbin thread bobbin located below the throat plate after cutting the needle thread above the fabric and pulls out the required amount. a cutting mechanism that cuts the bobbin thread pulled out by the bobbin thread pull-out member at a predetermined cutting position; a braking member held so as to be able to approach and separate from the bobbin thread bobbin; and a biasing means for urging the braking member to come into pressure contact with the bobbin thread bobbin in conjunction with the thread drawing operation, and by bringing the braking member into pressure contact with the bobbin thread bobbin and braking the rotation of the bobbin thread bobbin. In the lower thread bobbin braking device in the lower thread cutting device, the upper thread exposed on the upper surface of the cloth is pulled into the lower surface of the cloth during the lower thread pulling-out operation, wherein the biasing means moves the lower thread pulling-out member. A lower thread bobbin braking device in a lower thread cutting device, characterized in that a biasing force applied to the braking member is reduced in accordance with the above. (2) The biasing means is composed of a spring having one end hooked to the braking member, and a moving member having the other end hooked to the spring and moving in conjunction with the bobbin thread pulling member. 2. The bobbin thread bobbin braking device in a bobbin thread cutting device according to claim 1, wherein the distance between the pull-out member and the braking member changes as the pull-out member moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1719789U JPH0538711Y2 (en) | 1989-02-17 | 1989-02-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1719789U JPH0538711Y2 (en) | 1989-02-17 | 1989-02-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02109576U true JPH02109576U (en) | 1990-09-03 |
| JPH0538711Y2 JPH0538711Y2 (en) | 1993-09-30 |
Family
ID=31230764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1719789U Expired - Lifetime JPH0538711Y2 (en) | 1989-02-17 | 1989-02-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538711Y2 (en) |
-
1989
- 1989-02-17 JP JP1719789U patent/JPH0538711Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538711Y2 (en) | 1993-09-30 |
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