JPS6097579U

JPS6097579U - Sewing machine upper knife attachment device

Info

Publication number: JPS6097579U
Application number: JP19171383U
Authority: JP
Inventors: 福田　忠
Original assignee: ブラザー工業株式会社; 瑞浪精機株式会社
Priority date: 1983-12-13
Filing date: 1983-12-13
Publication date: 1985-07-03
Also published as: JPS6215035Y2

Abstract

(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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化したミシンの斜視、図、第２
図はその上メス取り付は装置部分を拡大して示す斜視図
、第３図は同じく部分破断平面図、第４図は右側面図、
第５図〜第７図はこの考案の別の実施例を示す上メス取
り付は装置の部分右側面図である。下メス・・・１０、揺動アーム・・・１２、上メス・・
・１５、軸・・・２２、スプリング・・・２７、被保持
面・・・３０、貫通孔・・・３１、調整軸・・・３２、
偏心調整面・・・３３、操作部としてのドライバ溝・・
・３４、締付ネジ・・・３５゜第３図第１図Figure 1 is a perspective view of a sewing machine that embodies this idea;
In addition, the figure is a perspective view showing the knife installation in an enlarged manner, FIG. 3 is a partially cutaway plan view, and FIG. 4 is a right side view.
FIGS. 5 to 7 are partial right side views of the upper knife attachment device showing another embodiment of this invention. Lower knife...10, Swing arm...12, Upper knife...
・15, Shaft...22, Spring...27, Retained surface...30, Through hole...31, Adjustment shaft...32,
Eccentric adjustment surface...33, driver groove as an operating part...
・34, Tightening screw...35° Fig. 3 Fig. 1

Claims

[Claims for Utility Model Registration] 1. The upper knife 15 is attached to the spring 2 against the side of the lower knife 10.
The swinging arm 1 is arranged so that it can come into elastic contact with
2, the upper knife 15 is attached to the lower knife 1 at one end of the shaft 22, which is attached in a direction intersecting the swing plane of the swing arm 12.
A held surface 30 is provided on the circumferential surface of the other end of the shaft 22, and the swing arm 12 has a held surface 30 on one end opposite to the held surface 30. An adjustment shaft 32 having an eccentric adjustment surface 33 that adjustably engages with the held surface 30 and an operating portion 34 at the other end for rotating the eccentric adjustment surface 33 is attached to the held surface of the shaft 22. In order to bring the eccentric adjustment surface 33 into close contact with the surface 30, a tightening screw 35 is inserted into a through hole 31 on the swing arm 12 extending substantially parallel to the shaft 22 and rotatably supported. The upper knife attachment device of the sewing machine is characterized by being fixed with. 2. The device for attaching an upper knife of a sewing machine according to claim 1, wherein the held surface 30 is an arcuate cutout surface.