JPH02148674U

JPH02148674U -

Info

Publication number: JPH02148674U
Application number: JP5771789U
Authority: JP
Priority date: 1989-05-18
Filing date: 1989-05-18
Publication date: 1990-12-18
Anticipated expiration: 2004-05-18
Also published as: JPH0719434Y2

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化したミシンの平面図
、第２図はミシンの底部フレームを省略して示す
平断面図、第３図は正断面図、第４図は可動刃作
動機構を示す側断面図、第５図は糸案内体作動機
構を示す側断面図、第６図は可動刃及び固定刃を
示す斜視図、第７図はミシンの上軸回転角度に対
する各部の作動タイミングを示すグラフである。２……針板、４……水平釜、８……ボビン、１
１……針、１３……糸案内体、２２……第１駆動
部材としての糸案内カム、２３……第２駆動部材
としての糸押えカム、２５……切換えレバー、２
７……連杆（前記２５，２７等によつて設定部材
が構成されている）、３２……固定刃、３４……
可動刃。 Fig. 1 is a plan view of a sewing machine that embodies this idea, Fig. 2 is a plan sectional view with the bottom frame of the sewing machine omitted, Fig. 3 is a front sectional view, and Fig. 4 shows the movable blade operating mechanism. 5 is a side sectional view showing the thread guide operating mechanism, FIG. 6 is a perspective view showing the movable blade and fixed blade, and FIG. 7 is a diagram showing the operation timing of each part relative to the rotation angle of the upper shaft of the sewing machine. It is a graph. 2... Throat plate, 4... Horizontal hook, 8... Bobbin, 1
DESCRIPTION OF SYMBOLS 1... Needle, 13... Thread guide body, 22... Thread guide cam as a first driving member, 23... Thread presser cam as a second driving member, 25... Switching lever, 2
7... Continuous rod (the setting member is constituted by the above-mentioned 25, 27, etc.), 32... Fixed blade, 34...
Movable blade.

Claims

[Claims for Utility Model Registration] The needle thread Y1 is moved up and down passing through the needle plate 2.
a horizontal hook 4 in which a bobbin 8 for bobbin thread is housed and rotated in a horizontal plane in order to form a stitch in cooperation with the needle 11; A thread take-up thread take-up operation for picking up the thread Y1, a thread guide body 13 that is reciprocated below the throat plate 2 in synchronization with the thread take-up and applies tension to the bobbin thread Y2 when the needle thread pick-up is taken up by the thread take-up, and a horizontal A sewing machine equipped with a fixed blade 32 disposed on one side of a hook 4 and a movable blade 34 that moves back and forth in a horizontal plane in cooperation with the fixed blade 32 to cut upper thread Y1 and lower thread Y2. , a first driving member 22 for reciprocating the thread guide 13 in synchronization with the thread take-up during normal sewing;
and the horizontal hook 4, and the engagement with both the upper and lower threads Y1 and Y2
, Y2 and a second drive member 23 that swings back and forth between a thread presser position and a thread presser position in which a portion of the movable blade 34 is bent and disposed so as to cross the movement path of the movable blade 34; Guide body 13
A sewing machine characterized by comprising setting members 25, 27, etc., which can set the state in which the second drive member 23 acts on the thread guide member 13 during the thread cutting operation.