JPS5814872U - Automatic thread cutting device for sewing machine - Google Patents

Abstract

Translated fromJapanese

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Translated fromJapanese

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の従来例を示す一部縦断正面図、第２図
乃至第６図は本考案に係るミシンにおける自動糸切り装
置の一実施例を示すもので、第２図は本考案装置を備え
るミシンの全体の概略を示す斜視図、第３図は平面図、
第４図は一部縦断した正面図、第５図は第３図の要部を
表わす下面図、第６図は第３図の矢印■−■線に沿って
縦断した側断面図である。２・・・針板、３・・・縫針、４・・・ルーバー、５，
６・・・メス（固定刃、可鯖刃）、１１・・・押えばね
、２６・・・偏心カム、２６ａ・・・回動操作部。６２−FIG. 1 is a partially longitudinal front view showing a conventional example of the present invention, and FIGS. 2 to 6 show an embodiment of an automatic thread cutting device for a sewing machine according to the present invention. A perspective view schematically showing the entire sewing machine including the device; FIG. 3 is a plan view;
4 is a partially longitudinally sectional front view, FIG. 5 is a bottom view showing the main part of FIG. 3, and FIG. 6 is a longitudinal sectional view taken along the arrow 1--2 line of FIG. 3. 2... Throat plate, 3... Sewing needle, 4... Louver, 5,
6... Scalpel (fixed blade, adjustable mackerel blade), 11... Pressing spring, 26... Eccentric cam, 26a... Rotating operation section. 62-

Claims (1)

Translated fromJapanese

【実用新案登録請求の範囲】[Scope of utility model registration request]針板下側の縫針昇降路に隣接され、かつ縫針に対向しう
るルーパーに対して進退自在に保持されたメスと、この
メスの刃先下面に弾性的に添設して当該メスとの間に挿
入される下糸を保持する押えばねと、前面に回動操作部
を一体的に固着し、かつ主軸の周りに偏心的に回動可能
に設けられるとともに周面が前記押えばねに当接して押
えばねとメスとの押圧力を調整可能にならしめる偏心カ
ムとを具備してなるミシンの自動糸切り装置。A knife which is adjacent to the sewing needle hoistway on the lower side of the throat plate and is held movably forward and backward with respect to a looper that can face the sewing needle, and a knife which is elastically attached to the lower surface of the cutting edge of this knife and is provided between the knife and the knife. A pressing spring for holding the bobbin thread to be inserted and a rotating operation part are integrally fixed to the front surface, and are provided so as to be eccentrically rotatable around the main shaft, and the peripheral surface is in contact with the pressing spring. An automatic thread cutting device for a sewing machine comprising a pressing spring and an eccentric cam that makes it possible to adjust the pressing force of a knife.