JPH0166278U

JPH0166278U -

Info

Publication number: JPH0166278U
Application number: JP1987161141U
Authority: JP
Priority date: 1987-10-21
Filing date: 1987-10-21
Publication date: 1989-04-27

Description

[Brief explanation of the drawing]

図面は、本考案に係るリンク式天秤を備えたミ
シンの好適な実施例を示すものであつて、第１図
は実施例に係るリンク式天秤を備えたミシンの頭
部における縦断側面図、第２図は第１図に示すミ
シンの一部正面図、第３図は第１図に示すミシン
の一部平面図、第４図は実施例に係るミシンに示
す糸案内体に張架した縫糸と、天秤本体の縫糸保
持部の垂直な昇降軌跡との関係を概略的に示す説
明図である。２……ミシン主軸、３……縫糸、５……天秤ク
ランク、６……天秤本体、７……縫糸保持部、７
ａ……糸挿入口、８……弾性片、９……固定軸、
１０……天秤支持体、２３……糸案内体。 The drawings show a preferred embodiment of a sewing machine equipped with a link type take-up according to the present invention, and FIG. FIG. 2 is a partial front view of the sewing machine shown in FIG. 1, FIG. 3 is a partial plan view of the sewing machine shown in FIG. 1, and FIG. FIG. 3 is an explanatory diagram schematically showing the relationship between the vertical movement trajectory of the sewing thread holding portion of the thread take-up body and the vertical movement trajectory of the thread holding portion of the thread take-up body. 2... Sewing machine main shaft, 3... Sewing thread, 5... Take-up crank, 6... Take-up body, 7... Sewing thread holding section, 7
a...Thread insertion port, 8...Elastic piece, 9...Fixed shaft,
10... Balance support body, 23... Thread guide body.

Claims

[Claims for Utility Model Registration] (1) A take-up crank 5 that rotates together with the sewing machine main shaft 2, and a thread take-up crank 5 that is pivotally supported at a position on the take-up crank 5 that is offset from the center of rotation of the sewing machine main shaft 2 to hold the sewing thread. The lever body 6 is formed at the free end so that the part 7 is positioned toward the front of the sewing machine, and is rotatable around a fixed shaft 9 provided behind and above the sewing machine main shaft 2 and parallel to the sewing machine main shaft 2. and a thread take-up support 10 whose free end is rotatably connected to an intermediate portion of the thread take-up body 6, the thread holding part 7 having a thread holding part 7 at a position slightly below the uppermost position thereof. A thread guide body 23 is provided to guide the sewing thread 3 in a direction transverse to the vertical movement plane of the section 7, and the thread take-up crank 5 is configured such that the rotation direction of the thread take-up crank 5 is counterclockwise on the left end surface of the sewing machine. The sewing thread holding section 7 is bent downward so that it can catch the sewing thread 3 guided by the thread guide 23 when descending from its uppermost position. A sewing machine equipped with a link-type balance. (2) The above-mentioned suture holding part 7 has a thread insertion port 7a that is open downward, and the thread insertion port 7a is releasably closed by an elastic piece 8. A sewing machine equipped with a link-type balance as described in Scope 1.