JPS6239684U

JPS6239684U -

Info

Publication number: JPS6239684U
Application number: JP13210785U
Authority: JP
Priority date: 1985-08-29
Filing date: 1985-08-29
Publication date: 1987-03-09

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による電動ミシン
のペタルレバー装置を示す一部を切欠いた正面図
、第２図はその側面図、第３図は平面図、第４図
は実施例の電気回路図、第５図は電動ミシンの構
成を示すブロツク図、第６図は制御回路のブロツ
ク図、第７図は電動ミシンの主要信号出力のタイ
ムチヤートである。図中、１，２は筐体、３は摺動軸、２０，２０
ａはホトインタラプタ、２１はホール素子である
。なお図中同一符号は同一、又は相当部分を示す
。 Fig. 1 is a partially cutaway front view showing a petal lever device of an electric sewing machine according to an embodiment of this invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view, and Fig. 4 is an electric circuit of the embodiment. 5 is a block diagram showing the configuration of the electric sewing machine, FIG. 6 is a block diagram of the control circuit, and FIG. 7 is a time chart of main signal outputs of the electric sewing machine. In the figure, 1 and 2 are the housing, 3 is the sliding shaft, 20, 20
a is a photointerrupter, and 21 is a Hall element. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A motor having a drive mechanism for driving the sewing machine, a braking mechanism for stopping the sewing machine, a position detector for detecting the needle position at at least one location on the sewing machine, and a position detector for setting the rotational speed of the motor and for detecting the position. A petal lever device for an electric sewing machine includes a control circuit that stops the sewing machine based on a sewing machine needle position signal, and a pedal that drives and stops the sewing machine by depressing and stepping back. An interlocking sliding shaft,
A housing that forms a sliding bearing portion of the sliding shaft, a portion that creates a neutral stopping position of the sliding shaft, and a holding portion of a spring that creates a reaction force that always returns the sliding shaft to neutral as the sliding shaft moves. and fixing one end to the sliding shaft,
a pin whose other end protrudes from a groove provided in the housing; a sliding piece that slides in conjunction with the pin; a detection circuit that detects a specific position of the sliding piece; A support means that forms a sliding part of a moving piece and is attached to the housing and is formed of a separate housing and rotatably supports the housing, and connects the detection circuit and the control circuit. connection means for supplying one or more switching signals output from the detection circuit when the pedal is depressed and a voltage signal that changes according to the depression of the pedal to the control circuit to drive the sewing machine. A petal lever device for an electric sewing machine, characterized in that it is configured to control.