JPS5829068U

JPS5829068U - Sewing machine lower shaft drive device

Info

Publication number: JPS5829068U
Application number: JP12234081U
Authority: JP
Inventors: 敬吾松田
Original assignee: リツカ−株式会社
Priority date: 1981-08-20
Filing date: 1981-08-20
Publication date: 1983-02-25
Also published as: JPS5935186Y2

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図は本考案下軸駆動装置の正面図、第２図は同じ（
その底面図、第３図は同じくその分解斜視図である。１・・・・・・ミシン機枠、２・・・・・・下軸駆動装
置、３・・・・・・下軸フレーム、７・・・・・・下軸
、８・・・・・・送り調節リンク軸、９．　１０．　１
１．　２３．　３’６．　３７・・・・・・軸受、１６
・・・・・・下軸スプロケット、１７．２８・・・・・
・ベベルギヤ、１８・・・・・・送り歯持ち上げカム、
１９・・・・・・ならい、２０・・・・・・送り偏心カ
ム、２２・・・・・・水平送り変換カラー、２６・・・
・・・釜、３０・・・・・・上下送り腕、３１・・・・
・・上下送り板、３３・・・・・・送り土台、３４・・
・・・・送り歯、３５・・・・・・水平送り軸、３８・
・パ・・・水平送り腕、４０・・・・・・水平送りロッ
ド、４７・・・・・・タイミングベルト。Figure 1 is a front view of the lower shaft drive device of the present invention, and Figure 2 is the same (
The bottom view and FIG. 3 are similarly exploded perspective views. 1... Sewing machine frame, 2... Lower shaft drive device, 3... Lower shaft frame, 7... Lower shaft, 8...・Feed adjustment link shaft, 9. 10. 1
1. 23. 3'6. 37...Bearing, 16
...Lower shaft sprocket, 17.28...
・Bevel gear, 18... Feed dog lifting cam,
19...Trailing, 20...Feed eccentric cam, 22...Horizontal feed conversion collar, 26...
... Hook, 30 ... Vertical feed arm, 31 ...
...Upper and bottom feed plate, 33...Feed base, 34...
...Feed dog, 35...Horizontal feed shaft, 38.
・Pa...Horizontal feed arm, 40...Horizontal feed rod, 47...Timing belt.

Claims

[Scope of claim for utility model registration] A feed eccentric cam in a lower shaft drive device of a sewing machine. The lower shaft is equipped with a spherical bearing and a lower shaft sprocket that transmits power with the feed dog lifting cam and bevel gear, and the horizontal feed shaft is equipped with a spherical bearing and rotatably supports the feed base to which the feed dog is fixed. The bearing is rotatably mounted on the lower shaft frame by fitting and fixing it into a groove provided in the lower shaft frame, and the bevel gear fixed to the hook shaft of the hook rotatably supported on the lower shaft frame and the The upper and lower feed arms that engage with the bevel gear of the lower shaft and come into contact with the lower surface of the feed base rotatably supported on the lower shaft frame are operatively connected to the upper and lower feed plates that hold the feed dog lifting cam. , a horizontal feed arm fixed to the horizontal feed shaft is operatively connected to a horizontal feed rod surrounding the feed eccentric cam to integrally constitute a lower shaft drive device, and the lower shaft drive device is mounted within the sewing machine frame. A lower shaft drive device for a sewing machine that is installed on the machine.