Security arrangement

Details Security arrangement Security arrangement

1999-04-23

2001-06-19

Paladini, Albert W. (Department: 2841)

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

C180S287000, C340S426110, C340S541000

Reexamination Certificate

active

06249061

ABSTRACT:

This invention relates to a security arrangement for use in reducing unauthorised use of a vehicle.
Vehicle theft is becoming increasingly common, one common technique for stealing a vehicle being to break into the vehicle, force the steering lock of the vehicle and start the vehicle by by-passing the ignition switch of the vehicle. It is an object of the invention to provide a security arrangement which reduces the risk of vehicle theft by preventing start-up of the vehicle by by-passing the vehicle ignition switch.
According to the present invention there is provided a security arrangement comprising a housing containing an electrical or electronic component, a resilient member being located within the housing and retained in a pre-stressed condition by a retaining member, the resilient member being located such that removal of the retaining member results in the resilient member flexing to a position in which the resilient member or a member carried thereby engages the component resulting in failure of the component.
The housing is intended to be mounted adjacent the steering column of the vehicle, and conveniently houses the ignition switch and part of the circuit used to control start-up of the engine of the vehicle. In order to by-pass the ignition switch of the vehicle as may occur if the vehicle is being stolen, the housing is opened in order to gain access to the electrical circuit used to start the vehicle's engine. Upon opening of the housing, the retaining member moves out of engagement with the resilient member, the resilient member then moving into engagement with a component of the circuit to cause the component to fail, thereby preventing use of the circuit in starting the engine of the vehicle.
Conveniently, the component is mounted adjacent an anvil. As a result, the engagement of the resilient member or member carried thereby with the component will damage or break the component rather than simply cause movement of the component, rendering the component inoperative/immeasurable.
The retaining member conveniently takes the form of a retaining pin carried by a removable part of the housing. The resilient member conveniently takes the form of a torsion spring.


REFERENCES:
patent: 4421977 (1983-12-01), Kittredge
patent: 4449605 (1984-05-01), Read
patent: 4803460 (1989-02-01), Rhee et al.
patent: 5554891 (1996-09-01), Shimizu et al.
patent: 5635899 (1997-06-01), Carlo et al.

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