JPS6314872U

JPS6314872U -

Info

Publication number: JPS6314872U
Application number: JP10771686U
Authority: JP
Priority date: 1986-07-14
Filing date: 1986-07-14
Publication date: 1988-01-30

Description

[Brief explanation of the drawing]

第１図〜第４図は本考案の一実施例を示すもの
であり、第１図は点火装置の簡略化した電気回路
図、第２図は点火パルスゼネレータの要部斜視図
、第３図は第２図の矢視拡大図、第４図は正転
時および逆転時の点火信号波形図、第５図および
第６図は本考案の他の実施例を示すもので、第５
図は第２図に対応した要部斜視図、第６図は第５
図の―線拡大断面図である。３……イグナイタ、４……点火コイル、１１，
１１′……パルサプレート、１２……ピツクアツ
プコイル、１４……比較回路、１５……スイツチ
ング回路。 Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a simplified electrical circuit diagram of the ignition device, Figure 2 being a perspective view of the main parts of the ignition pulse generator, and Figure 3 being a perspective view of the main parts of the ignition pulse generator. 2 is an enlarged view of the arrow in FIG. 2, FIG. 4 is an ignition signal waveform diagram during normal rotation and reverse rotation, and FIGS. 5 and 6 show other embodiments of the present invention.
The figure is a perspective view of the main part corresponding to Fig. 2, and Fig. 6 is a perspective view of the main part corresponding to Fig. 5.
FIG. 3...Igniter, 4...Ignition coil, 11,
11'...Pulser plate, 12...Pickup coil, 14...Comparison circuit, 15...Switching circuit.

Claims

[Scope of utility model registration request]

A pulser plate that rotates in conjunction with the crankshaft of a two-stroke engine, a pick-up coil that is placed at a fixed position to output an ignition signal in response to the passage of the tip of the pulser plate, and an ignition signal from the pick-up coil. In an ignition device for a two-stroke engine that includes an igniter that controls an ignition coil, the tip of the pulsar plate is formed so that its cross-sectional area in a plane that includes the axis of rotation changes sequentially along the circumferential direction; , a comparison circuit that compares the waveforms before and after the zero-crossing point of the ignition signal from the pick-up coil, and a switching device that prevents the ignition coil from operating when the comparison circuit outputs a comparison result that differs from that obtained during normal rotation of the pulsar plate. An ignition device for a two-stroke engine, characterized in that it is provided with a circuit.