JPS59105478U

JPS59105478U - sewing machine thread cutting device

Info

Publication number: JPS59105478U
Application number: JP19874382U
Authority: JP
Inventors: 都筑　伸之
Original assignee: ジューキ株式会社
Priority date: 1982-12-29
Filing date: 1982-12-29
Publication date: 1984-07-16

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 drawings]

第１図、第２図はこの考案の一実施例装置の底面図、第
３図は第１図、第２図に示す装置の要部底面斜視図、第
４図〜第６図はそれぞれこの考案の他の実施例の要部斜
視図である。１・・・釜軸、３・・・カム体、４・・・移動軸、６・
・・係合ビン、８・・・作動腕、１０−・・ソレノイド
、１８ａ・・・規制部としてのネジ１８の頭部、１９・
・・係止部。1 and 2 are bottom views of an embodiment of the device of this invention, FIG. 3 is a bottom perspective view of the main parts of the device shown in FIGS. 1 and 2, and FIGS. 4 to 6 are respectively FIG. 6 is a perspective view of main parts of another embodiment of the invention. 1... Hook shaft, 3... Cam body, 4... Moving axis, 6...
... Engagement bottle, 8... Operating arm, 10-... Solenoid, 18a... Head of screw 18 as a regulating part, 19.
...Locking part.

Claims

[Scope of Claim for Utility Model Registration] A hook shaft that is rotatably supported on the machine frame below the sewing machine head and rotates in conjunction with the main shaft; a cam body that is fitted and fixed to the hook shaft and has a cam groove on its circumferential surface; A moving shaft is supported on the machine frame so as to be movable in parallel with the rotary hook shaft, and a moving shaft is supported on the moving shaft so as to be movable in a direction orthogonal to the moving direction of the moving shaft so that it can be engaged with and disengaged from the cam groove of the cam body. It has a retaining pin that receives an elastic force acting in a direction to separate from the cam groove, and a pressing surface facing the engagement pin, and presses and holds the engagement pin so that it engages in the direction of the cam groove against the elastic force. an operating arm supported on a machine frame so as to be movable between an operating position and a non-operating position in which the engaging pin is separated from the cam groove by its elastic force, and having a pressing surface formed so as to be parallel to the rotary hook shaft axis in the operating position; A locking portion that prevents the moving shaft from moving in the axial direction when the working arm is in the inactive position; A thread cutting device for a sewing machine that includes a regulating section that acts to engage a coupling pin into a cam groove of a cam body.