JPS58177083U

JPS58177083U - Upper feed device in sewing machine

Info

Publication number: JPS58177083U
Application number: JP7589382U
Authority: JP
Inventors: 野田　政康; 梅村　賢二
Original assignee: ブラザー工業株式会社
Priority date: 1982-05-24
Filing date: 1982-05-24
Publication date: 1983-11-26
Also published as: JPS6012522Y2

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上送り装置を示す側面図
、第２図は同じく平面図、第３図は水平運動付与機構を
示す側断面図、第４図は上下運動付与機構を示す側断面
図、第５図および第６図はそれぞれ上送り歯が下降位置
、上昇位置にあるときを示す一部側面図、第７図は押え
ばねの取付状態を示す断面図、第８図は支持腕の支持部
を示す断面図、第９図は上送り歯の四運動送りを示す線
図である。ミシン主軸・・・・・・１２、上送り台・・・・・・２
０、水平送り腕・・・・・・２４、上下送り腕・・・・
・・３３、連結リンク・・・・・・３４、支持腕・・・
・・・３９、上送り歯・・・・・・４１、押えばね・・
・・・・４４、下送り歯・・・・・・５４、加工布支持
面・・・・・・６１゜Fig. 1 is a side view showing an upper feeding device embodying this invention, Fig. 2 is a plan view thereof, Fig. 3 is a side sectional view showing a horizontal movement imparting mechanism, and Fig. 4 is a vertical movement imparting mechanism. 5 and 6 are partial side views showing when the upper feed dog is in the lowered and raised positions, respectively. FIG. 7 is a sectional view showing the mounting state of the presser spring, and FIG. FIG. 9 is a cross-sectional view showing the support part of the support arm, and a line diagram showing the four-movement feed of the upper feed dog. Sewing machine main shaft...12, upper feed base...2
0, Horizontal feed arm...24, Vertical feed arm...
...33, Connecting link...34, Support arm...
...39, Upper feed dog...41, Press...
...44, Lower feed dog ...54, Work cloth support surface ...61°

Claims

[Claims for Utility Model Registration] 1. An upper feed table 20 arranged to extend in the cloth feeding direction on the work cloth support surface 61, and a first feed table 20 that is vertically swung in conjunction with the main shaft 12 of the sewing machine. A swinging arm 33, one end of which is rotatably connected to the free end of the first swinging arm 33, and the other end of which is rotatably connected to a substantially intermediate portion of the upper feed table 36, 38. , a link 34 that imparts vertical movement to the upper feed table 20 in accordance with the swinging of the first swinging arm 33, and a link 34 that swings in the horizontal direction in conjunction with the main shaft 12, the free end of which is a second swinging arm 24 that is rotatably connected to the cloth feeding side of the upper feed table 20 and imparts horizontal movement to the upper feed table 20 in accordance with the rotation of the main shaft 12;
and a support arm 39 whose base end is rotatably connected to the cloth feed side of the upper feed table 20 and whose free end is provided with an upper feed dog 41 that cooperates with the lower feed dog 43; A spring 44 acts on the arm 39 to apply a downward pressing force to the upper feed dog 41, and a spring 44 is provided between the upper feed table 20 and the support arm 39, and the first swing arm 3
a stopper that restricts the rotation of the support arm 39 due to the action of the spring 44 and causes the upper feed dog 41 to rise from the work cloth support surface 61 when the upper feed dog 41 is raised in accordance with the swinging motion of the upper feed dog 3; An upper feed device for a sewing machine, characterized in that a member 38C is provided. 2. The upper feed device for a sewing machine according to claim 1, wherein the spring 44 is mounted on the upper feed table 2θ.