| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent theft of a vehicle by preventing injustice driving of an engine without installing it on a fuel system as well as by installing it with a small number of part items, in simple structure and in a saved space. SOLUTION: It is a theft prevention device of a vehicle furnished with a cylinder 3, a piston 5 to reciprocate in the cylinder 3 and an internal combustion engine 1 constituted of an intake valve 27 and an exhaust valve 29 to change gas of a combustion chamber 35 formed of the cylinder 3 and the piston 5, it has a stem pressing means 43 to press the exhaust valve 29 and avoids starting of the internal combustion engine 1 by making a compression stroke of the combustion chamber 35 impossible by holding an exhaust port 39 of the combustion chamber 35 in an open state by pressing the exhaust valve 39 by a stem pressing means 43.</p> |
