JPS6067780U

JPS6067780U - Upper feed device of sewing machine

Info

Publication number: JPS6067780U
Application number: JP16110683U
Authority: JP
Inventors: 隆志嘉数田
Original assignee: ペガサスミシン製造株式会社
Priority date: 1983-10-17
Filing date: 1983-10-17
Publication date: 1985-05-14
Also published as: JPS6346072Y2

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図は本考案に係る上送り装置の斜視図、第２図は揺
動軸と上送り上下軸を連結するリンク機構において軸状
クランクが上死点にあるときの状態を示す図、第３図は
軸状クランクが下死点にあるときの状態を示す図、第４
図は別の実施例の斜視図、第５区は第４図に示される上
送り装置の要部断面図である。１・・・主軸、４・・・上送り台、６・・・上送り歯、
８・・・上送り上下軸、１２・・・揺動軸、１３・・・
止めネジ、１４・・・偏心クランク、１５・・・レバー
　Ｉ　Ｅｅロッド、３１・・・偏心クランク、３４・・
・係合体、４１・・・ストッパー。FIG. 1 is a perspective view of the top feed device according to the present invention, FIG. Figure 3 is a diagram showing the state when the shaft-shaped crank is at the bottom dead center.
The figure is a perspective view of another embodiment, and section 5 is a sectional view of a main part of the upper feeding device shown in FIG. 4. 1... Main shaft, 4... Upper feed base, 6... Upper feed dog,
8...Upper feed vertical axis, 12...Rotating axis, 13...
Set screw, 14... Eccentric crank, 15... Lever I Ee rod, 31... Eccentric crank, 34...
- Engagement body, 41... stopper.

Claims

[Scope of utility model registration request]

(1) An upper feed arm that is pivotably supported vertically by a member that reciprocates in the feed direction in conjunction with the main shaft, and has an upper feed dog at its free end that faces the lower feed dog, and an upper feed arm. In an upper feed device of a sewing machine that has an elastic device that presses down the arm, and a crank that swings vertically in conjunction with the main shaft and engages with the upper feed arm to move the arm up and down, the member 3 is The amount of exercise can be adjusted, and the above-mentioned club. The swinging mechanism for swinging the link 3 includes eccentric cranks 14 and 31 that are attached to the main shaft 1 or a rotating shaft that rotates in conjunction with the main shaft so that the mounting angle can be adjusted; A transmission mechanism is provided to transmit the information to the crank 3 and swing the crank, and the transmission mechanism further includes an adjustment mechanism for adjusting the amount of swing of the crank and an adjustment means for adjusting the range of swing of the crank. Upper feeding device provided.

(2) The upper feeding device according to claim 1, wherein the eccentric crank 14 is fixed to the main shaft 1 or the rotating shaft with a set screw 13.

(3) The eccentric crank 14 is removably connected to the main shaft 1 or the rotating shaft by a clutch mechanism.
Upper feed device as described in section. (4) The clutch mechanism is a fixed body 37 that is fixed to the main shaft or rotating shaft and has internal teeth.
Then, the teeth formed on the outer periphery of the locking body 39, which is slidably supported in the diametrical direction by the eccentric crank 31 and is always biased in one direction by the bar 35 and protrudes laterally, are engaged with the inner teeth. The engaging body 34 is removably fitted into a recess 40 formed on the outer periphery of the eccentric crank 31 to lock the eccentric crank 31 in the rotational direction, and the engaging body 34 is engaged with the spring 35.
4. The upper feeding device according to claim 3, further comprising a stopper 41 which is pushed in against the action of the inner teeth to separate the teeth from the inner teeth.