초록 ▼

An inside case made of rubber is mounted in an outside case, a substrate integrally provided with an engine stop switch circuit and a switch electrode of an engine stop switch unit is assembled in the inside case, and its lower side is filled with curable insulating base material to be sealed. Furth

An inside case made of rubber is mounted in an outside case, a substrate integrally provided with an engine stop switch circuit and a switch electrode of an engine stop switch unit is assembled in the inside case, and its lower side is filled with curable insulating base material to be sealed. Further, a switch contact opposed to the switch electrode is formed of pressure sensitive conductive rubber, and a reversal spring is further interposed on the pressure sensitive conductive rubber. As a result, wirings are eliminated, a decrease in the size of the entire apparatus and simplification can be realized, and a metal contact is eliminated to improve durability.

대표청구항 ▼

A stop switch apparatus for an engine, comprising: an insulating base plate; a substrate laid on said insulating base plate; an electrode printed on said substrate; an insulating sheet laid on said substrate for covering said electrode; an inside case laid on said insulating sheet and having a press

A stop switch apparatus for an engine, comprising: an insulating base plate; a substrate laid on said insulating base plate; an electrode printed on said substrate; an insulating sheet laid on said substrate for covering said electrode; an inside case laid on said insulating sheet and having a pressure-movable portion movable toward said electrode; an outside case fixed to said insulating base plate for covering said inside case and said substrate; a pressure sensitive member laid on said insulating sheet for contacting said electrode when said pressure-movable portion of said inside case is pushed; a reversal member interposed between said pressure sensitive member and said inside case, said reversal member deforming when a predetermined force is applied thereto to contact said pressure sensitive member and move said pressure sensitive member toward said electrode; and a stop switch circuit electrically connected to a source circuit including a switch, a thyristor and a resistor, said switch comprising said electrode and said pressure sensitive member, said thyristor being connected to said electrode and stopping said engine by grounding said source circuit when said thyristor receives a turn on signal, said resistor being directly connected to said source circuit and connected to said thyristor for providing a short circuit when said thyristor receives said turn on signal; wherein said pressure sensitive member is an electrically conductive rubber and closes said stop switch circuit when moved into electrical contact with said electrode.