JPS59174170U

JPS59174170U - Cloth feed device in sewing machine

Info

Publication number: JPS59174170U
Application number: JP6933783U
Authority: JP
Inventors: 居在家　正昭; 敏昭長田
Original assignee: 奈良ミシン工業株式会社
Priority date: 1983-05-10
Filing date: 1983-05-10
Publication date: 1984-11-21
Also published as: JPS6234534Y2

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図から第１１図までは、本考案の第１実施例を示す
もので、第１図は本考案の布送り装置を示す立体斜視図
、第２図は布送り装置をすくい縫ミシンに組み込んだ状
態を示す平面図、第３図は第２図の正面図、第４図は布
送り台の要部を示す側面図、第５図、第７図および第９
図は布送り装置の布送り量変換作動状態図、第６図、第
８図および第１０図は送り歯の運動状態を示す循環軌跡
線図、第１１図は本考案による縫製状態を示した参考図
である。また、第１２図から第１５図までは、本考案の
第２実施例を示すもので、第１２図は要部を示す平面図
、第１３図は布送り台の要部を示す側面図、第１４図は
従来の送り歯の運動状態を示す循環軌跡線図、第１５図
は第２実施例の送り歯の循環軌跡線図である。５１・・・上軸、５２・・・偏心カム、５３・・・調節
偏心カム、５５・・・送り歯、５６・・・布送り台、５
７・・・送り台支持ロッド、６０・・・フレーム本体、
６３・・・支持ロッドピン、６５・・・前後送りロッド
、６７・・・前後送り調節クランク、６９・・・伝達軸
、８３・・・送り台上下偏心カム、８５・・・布送り台
、８６・・・偏心カム、８７・・・前後送り偏心カム。Figures 1 to 11 show the first embodiment of the present invention. Figure 1 is a three-dimensional perspective view showing the cloth feeding device of the present invention, and Figure 2 is a cloth feeding device installed in a blind stitch sewing machine. FIG. 3 is a front view of FIG. 2, FIG. 4 is a side view showing the main parts of the cloth feeding table, FIGS. 5, 7, and 9.
The figure is a diagram of the cloth feed amount conversion operation state of the cloth feed device, Figures 6, 8, and 10 are circulation locus diagrams showing the movement status of the feed dog, and Figure 11 is the sewing state according to the present invention. This is a reference diagram. 12 to 15 show a second embodiment of the present invention, in which FIG. 12 is a plan view showing the main parts, and FIG. 13 is a side view showing the main parts of the cloth feed table. FIG. 14 is a circulation locus diagram showing the movement state of the conventional feed dog, and FIG. 15 is a circulation locus diagram of the feed dog according to the second embodiment. 51... Upper shaft, 52... Eccentric cam, 53... Adjustment eccentric cam, 55... Feed dog, 56... Fabric feed stand, 5
7... Feeding stand support rod, 60... Frame body,
63...Support rod pin, 65...Back and forth feed rod, 67...Back and forth feed adjustment crank, 69...Transmission shaft, 83...Feed table vertical eccentric cam, 85...Cloth feed table, 86 ... Eccentric cam, 87... Front and rear feed eccentric cam.

Claims

[Scope of utility model registration request]

A cloth feed table with a feed dog at its free end has its base end fitted into an eccentric cam on the upper shaft, and its intermediate portion is pivotally supported by a feed table support rod that swings around a support rod pin as a fulcrum. The feeder support rod is attached to the feeder support rod, and a transmission shaft rotatably supported by the frame body is rotated to gently slide on the feeder support rod to change the swing amplitude of the feeder support rod. A front-rear feed adjustment crank is provided to change the cloth feeding stroke of the cloth feed table, and the front-rear feed adjustment crank includes a front-rear feed rod that gives a back-and-forth movement to the feed table. A cloth feeding device for a sewing machine, which is fitted into an eccentric cam and whose tip is rotatably attached.