WO1997001463A1 - Anti-theft system for vehicles - Google Patents

Anti-theft system for vehicles Download PDF

Info

Publication number
WO1997001463A1
WO1997001463A1 PCT/HU1995/000029 HU9500029W WO9701463A1 WO 1997001463 A1 WO1997001463 A1 WO 1997001463A1 HU 9500029 W HU9500029 W HU 9500029W WO 9701463 A1 WO9701463 A1 WO 9701463A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
safety lock
exhaust manifold
lock
vehicle
Prior art date
Application number
PCT/HU1995/000029
Other languages
French (fr)
Inventor
Péter Rozim
Original Assignee
Rozim Peter
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rozim Peter filed Critical Rozim Peter
Priority to PCT/HU1995/000029 priority Critical patent/WO1997001463A1/en
Publication of WO1997001463A1 publication Critical patent/WO1997001463A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
    • B60R25/043—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor by blocking the exhaust

Definitions

  • the present invention relates to an anti-theft system for vehicles provided with a shout manifold, the system including a valve disposed in the exhaust manifold of the vehicle and actuating means for the valve, arranged at the driver's seat.
  • the known devices are electric, electronic or mechanical devices, wherein the electric or electronic systems operate mainly by ignition or fuel cut-out in order to prevent the use of the cars.
  • the electric systems can be inactivated relatively easily and therefore the protection provided by these systems is not safe enough.
  • the electronic systems generally cut out the ignition or operate a central lock system.
  • the main drawback of the electronic systems is that the technical advance enables the spotting the system and operating it from the outside.
  • the US patent No. 4 692 140 discloses an anti-theft exhaust system for vehicles wherein an electrically operable valve is disposed in the engine exhaust system in association with an electrically operable valve actuating means responsible to a free determined sequence of remotely generated electrical signals.
  • the valve is actuated from open to closed position by a solenoid assembly, wherein the solenoid armature is normally based into an advanced position by a spring.
  • the advantage of the system is that it prevents the use of the car if not the correct electrical signals are used.
  • the basic disadvantages of the electrically operable valve actuating means is that the electronic system can be decoded from the outside and therefore prevention of unauthorised use is not effective enough.
  • valve is easily operable if the control system has been removed.
  • the spring applied in the solenoid armature has to work under the effect of rather great heat and vibration which may cause an early fatigue and, as a result of that, an incomplete closing. If in turn the valve is not closed completely, the car may be used.
  • a further object of the invention is to provide a system the operating of which are inaccessible.
  • the present invention is an anti-theft system for vehicles provided with exhaust manifold which includes a valve disposed in the exhaust manifold of the vehicle and an actuating means for the valve arranged at the driver's seat.
  • the valve is self-locking and the actuating means is a safety lock wherein a bowden or a hinge-lever mechanism is arranged in a tamper-proof cover tube between said valve and said means.
  • an undercut insert is arranged between the rotating part of the safety lock and the bowden or hinge-lever mechanism.
  • the valve is a butterfly valve wherein the Iower part of the butterfly plate is heavier than the part above the shaft of the valve.
  • the safety lock may be a cylinder lock and the key of the cylinder lock can only be removed from the lock in the closed position of the valve.
  • the valve is preferably arranged in the exhaust tube between flanges, on the other hand, the valve should be arranged between the exhaust throat and the catalytic converter in order to prevent precipitation of fuel vapour in the converter.
  • the valve and the cover tube are wrapped with a housing fixed to the chassis of the vehicle.
  • the anti-theft system according to the invention can be applied in any kind of vehicles in a way that unauthorized persons can not operate it.
  • the use of the system does not inclamp the operating of the engine and there is no need to change to construction of any part of the vehicle.
  • the key should be turned. As the key can only be removed from the lock in the closed position of the valve, a single glance to it is enough to check whether it is in closed position or not.
  • the vehicle can be used as any other vehicle. If, however, the butterfly valve closes the exhaust tube, ignition of the motor is not possible. If more attempt is made to ignite the motor, the pressure between the butterfly valve and the exhaust throat increases first, then the gases are leaving the system through the suction throat and the air filter.
  • a great advantage of the present invention with respect to the prior art is that the butterfly valve itself is self-closing and prevents ignition of the motor even if the safety lock or the transmission (bowden or hinge-lever system) have been destroyed.
  • Figure 1 is a chematic system diagram of the invention
  • Figure 2 is a longitudinal section of the valve in the exhaust manifold of the vehicle
  • Figure 3 is a longitudinal section of the safety lock according to the invention to the with a part of the transmission and
  • Figure 4 is the chematic diagram of another embodiment of the transmission.
  • Figure 1 shows a part of the cross-section of a car containing 1 chassis and 2 driver's seat.
  • the safety lock 3 is arranged between the driver's seat 2 and is connected via transmission 4 to the valve 6 arranged in the exhaust manifold 5.
  • the section of exhaust manifold 5 containing the valve 6 is covered with a housing 7.
  • FIG. 2 shows the valve 6 in the exhaust manifold 5 of the car.
  • exhaust manifold 5 is provided with flanges 8 and the housing 9 of valve 6 is connected to the manifold 5 by flanges 10.
  • Butterfly plate 11 is arranged on a valve shaft 12.
  • Butterfly plate 11 is asymmetric in a way that the Iower part is of greater weight then the upper one. Accordingly, the butterfly plate 11 is self-locking.
  • Figure 3 shows the safety lock 3. It contains a cylinder 13 and key 14. Cylinder 15 is provided with a rotating part 16 which inturn is in connection with bowden 17. Bowden 17 is covered by a flexible cover tube 18 and a tamper-proof second cover tube 19. Tubes 18 and 19 are connected to cylinder 15 and safety lock 3 respectively by flare nuts 20 and 21. There is an undercut insert 22 between the rotating part 16 of the cylinder lock 15 and the bowden 17. This undercut insert 22 is broken immediately when cylinder lock 15 is destroyed by boring or any other way. In this way, operating of butterfly plate 11 is impossible and valve 6 remains closed all the time.
  • Figure 4 shows another embodiment of transmission 4 between safety lock 3 and valve 6.
  • Transmission 4 consists of cardan joint 23, cardan axle 24 and second cardan joint 25.
  • the cover tube or tubes are not shown.
  • transmission 4 provides for opening butterfly plate 11. In this position the car can be used regularly.
  • key 14 When the car is parked and the driver leaves it, key 14 should again be turned to the opposite direction and accordingly the valve is closed by butterfly plate 11. In this position key 14 can be removed from the safety lock 3 and that shows at the same time that the anti-theft system is operating.
  • the elements of transmission 4 are produced of high strength materials in order to prevent cutting or destroying them. The same is valid for the cover tubes and the housing.
  • valve is self-closing and the car can not be used even if the transmission or the safety lock would be destroyed.
  • a basic advantage of the present invention is that it is a fully mechanical operating system, it can not be decoded, the parts are not accessible from the outside and it is very difficult to destroy them.
  • the safety lock is arranged in the vicinity of the driver's seat and is not easy to detect.
  • the use of the system does not influence at all the operation of the vehicle.

Abstract

The anti-theft system according to the invention is provided with exhaust manifold, which includes a valve disposed in the exhaust manifold of the vehicle and actuating means for the valve arranged at the driver's seat wherein the valve (6) is self-locking and the actuating means is a safety lock (3) wherein a bowden (17) or a hinge-lever mechanism is arranged in a tamper-proof cover tube (18, 19) between said valve (6) and said means. The valve (6) is provided with a butterfly plate (11), the lower part of which is heavier than the part of above shaft (12) of the valve (6). The valve (6) and the cover tube (18, 19) are wrapped with a housing (7) fixed to the chassis (1) of the vehicle.

Description

ANTI-THEFT SYSTEM FOR VEHICLES
The present invention relates to an anti-theft system for vehicles provided with a shout manifold, the system including a valve disposed in the exhaust manifold of the vehicle and actuating means for the valve, arranged at the driver's seat.
A great number of anti-theft devices and systems are known and used mainly for the unauthorised use of cars. The known devices are electric, electronic or mechanical devices, wherein the electric or electronic systems operate mainly by ignition or fuel cut-out in order to prevent the use of the cars.
The electric systems can be inactivated relatively easily and therefore the protection provided by these systems is not safe enough.
The electronic systems generally cut out the ignition or operate a central lock system. The main drawback of the electronic systems is that the technical advance enables the spotting the system and operating it from the outside.
The mechanical operating systems are more reliable from this point of view, the application of such systems is, however, rather uneasy: the devices are robust and often can be removed easily. Devices of the art are among others clamps of the clamps of the wheel and/or pedal or between the handbreak and/or gear-shift lever etc. Devices are also known wherein the gear-shift lever can be fixed to the chassis of the car by a safety lock.
The US patent No. 4 692 140 discloses an anti-theft exhaust system for vehicles wherein an electrically operable valve is disposed in the engine exhaust system in association with an electrically operable valve actuating means responsible to a free determined sequence of remotely generated electrical signals. The valve is actuated from open to closed position by a solenoid assembly, wherein the solenoid armature is normally based into an advanced position by a spring.
The advantage of the system is that it prevents the use of the car if not the correct electrical signals are used. The basic disadvantages of the electrically operable valve actuating means is that the electronic system can be decoded from the outside and therefore prevention of unauthorised use is not effective enough.
Further disadvantage of the system is that the valve is easily operable if the control system has been removed. The spring applied in the solenoid armature has to work under the effect of rather great heat and vibration which may cause an early fatigue and, as a result of that, an incomplete closing. If in turn the valve is not closed completely, the car may be used.
An object of the present invention is to provide an improved anti-theft device for vehicles, which need not be mounted all the time when the car is used. Another object of the invention is to provide a system which need not much room first of all around the driver's seat.
A further object of the invention is to provide a system the operating of which are inaccessible.
Accordingly, the present invention is an anti-theft system for vehicles provided with exhaust manifold which includes a valve disposed in the exhaust manifold of the vehicle and an actuating means for the valve arranged at the driver's seat. According to the invention the valve is self-locking and the actuating means is a safety lock wherein a bowden or a hinge-lever mechanism is arranged in a tamper-proof cover tube between said valve and said means.
Preferably, an undercut insert is arranged between the rotating part of the safety lock and the bowden or hinge-lever mechanism.
According to a preferred embodiment of the invention the valve is a butterfly valve wherein the Iower part of the butterfly plate is heavier than the part above the shaft of the valve.
The safety lock may be a cylinder lock and the key of the cylinder lock can only be removed from the lock in the closed position of the valve. The valve is preferably arranged in the exhaust tube between flanges, on the other hand, the valve should be arranged between the exhaust throat and the catalytic converter in order to prevent precipitation of fuel vapour in the converter. Preferably, the valve and the cover tube are wrapped with a housing fixed to the chassis of the vehicle.
The anti-theft system according to the invention can be applied in any kind of vehicles in a way that unauthorized persons can not operate it. The use of the system does not inclamp the operating of the engine and there is no need to change to construction of any part of the vehicle.
Operating of the system according to the invention needs only a single movement of the hand: the key should be turned. As the key can only be removed from the lock in the closed position of the valve, a single glance to it is enough to check whether it is in closed position or not.
If the valve is opened due to turning of the key of the safety lock, the vehicle can be used as any other vehicle. If, however, the butterfly valve closes the exhaust tube, ignition of the motor is not possible. If more attempt is made to ignite the motor, the pressure between the butterfly valve and the exhaust throat increases first, then the gases are leaving the system through the suction throat and the air filter.
A great advantage of the present invention with respect to the prior art is that the butterfly valve itself is self-closing and prevents ignition of the motor even if the safety lock or the transmission (bowden or hinge-lever system) have been destroyed.
The same effect is produced by the undercut insert between the protating part of the lock and the transmission, when the lock is distroyed. The undercut insert will then be broken and the self-locking valve remains closed. Other objects and advantages of the subject invention will become apparent from the following detailed description of the invention and from the appended drawings, wherein
Figure 1 is a chematic system diagram of the invention,
Figure 2 is a longitudinal section of the valve in the exhaust manifold of the vehicle,
Figure 3 is a longitudinal section of the safety lock according to the invention to the with a part of the transmission and
Figure 4 is the chematic diagram of another embodiment of the transmission.
Figure 1 shows a part of the cross-section of a car containing 1 chassis and 2 driver's seat. The safety lock 3 is arranged between the driver's seat 2 and is connected via transmission 4 to the valve 6 arranged in the exhaust manifold 5. The section of exhaust manifold 5 containing the valve 6 is covered with a housing 7.
Figure 2 shows the valve 6 in the exhaust manifold 5 of the car. Here, exhaust manifold 5 is provided with flanges 8 and the housing 9 of valve 6 is connected to the manifold 5 by flanges 10.
In the housing 9 of the valve 6 a butterfly plate 11 is arranged on a valve shaft 12. Butterfly plate 11 is asymmetric in a way that the Iower part is of greater weight then the upper one. Accordingly, the butterfly plate 11 is self-locking.
Figure 3 shows the safety lock 3. It contains a cylinder 13 and key 14. Cylinder 15 is provided with a rotating part 16 which inturn is in connection with bowden 17. Bowden 17 is covered by a flexible cover tube 18 and a tamper-proof second cover tube 19. Tubes 18 and 19 are connected to cylinder 15 and safety lock 3 respectively by flare nuts 20 and 21. There is an undercut insert 22 between the rotating part 16 of the cylinder lock 15 and the bowden 17. This undercut insert 22 is broken immediately when cylinder lock 15 is destroyed by boring or any other way. In this way, operating of butterfly plate 11 is impossible and valve 6 remains closed all the time.
Figure 4 shows another embodiment of transmission 4 between safety lock 3 and valve 6. Transmission 4 consists of cardan joint 23, cardan axle 24 and second cardan joint 25. Here, the cover tube or tubes are not shown.
When the owner of the car wants to operate the vehicle, he inserts key 14 in the safety lock 3 and turns it. Accordingly, transmission 4 provides for opening butterfly plate 11. In this position the car can be used regularly.
When the car is parked and the driver leaves it, key 14 should again be turned to the opposite direction and accordingly the valve is closed by butterfly plate 11. In this position key 14 can be removed from the safety lock 3 and that shows at the same time that the anti-theft system is operating.
The elements of transmission 4 are produced of high strength materials in order to prevent cutting or destroying them. The same is valid for the cover tubes and the housing.
A further protection is provided by the fact that the valve is self-closing and the car can not be used even if the transmission or the safety lock would be destroyed.
A basic advantage of the present invention is that it is a fully mechanical operating system, it can not be decoded, the parts are not accessible from the outside and it is very difficult to destroy them. At the same time, the safety lock is arranged in the vicinity of the driver's seat and is not easy to detect. Furthermore, the use of the system does not influence at all the operation of the vehicle. As various changes may be made in the system as above said fort it is to be understood that all matter herein described or shown in the accompanying drawings is to be inteφreted as illustrative and not in eliminating sense.

Claims

What is claimed is
1. An anti-theft system for vehicles provided with exhaust manifold, which includes a valve disposed in the exhaust manifold of the vehicle and actuating means for the valve arranged at the driver's seat characterised in that the valve (6) is self-locking and the actuating means is a safety lock (3) wherein a bowden (17) or a hinge-lever mechanism is arranged in a tamper-proof cover tube (18,19) between said valve (6) and said means.
2. The system as claimed in claim 1 , characterised in that an undercut insert (22) is arranged between the safety lock (3) and the bowden (17) or hinge-lever mechanism.
3. The system as claimed in claim 1 or 2, characterised in that the valve (6) is provided with a butterfly plate (11) the Iower part of which is heavier than the part of above shaft (12) of the valve (6).
4. The system as claimed in any of claims 1 to 3, characterised in that the safety lock (3) is a cylinder lock (15).
5. The system as claimed in any of claims 1-4, characterised in that the valve (6) is arranged in the exhaust manifold (5) between flanges (8).
6. The system as claimed in any of claims 1-5, characterised in that the valve (6) is arranged in the exhaust manifold (5) of the car between the exhaust throat and the catalytic converter.
7. The system as claimed in any claims 1 to 6, characterised in that the valve (6) and the cover tube (18,19) are wrapped with a housing (7) fixed to the chassis (1) of the vehicle.
8. The system as claimed in any of claims 1 to 7, characterised in that the key (14) of the safety lock (3) can only be removed from the lock in the closed position of the valve (6).
PCT/HU1995/000029 1995-06-26 1995-06-26 Anti-theft system for vehicles WO1997001463A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/HU1995/000029 WO1997001463A1 (en) 1995-06-26 1995-06-26 Anti-theft system for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1995/000029 WO1997001463A1 (en) 1995-06-26 1995-06-26 Anti-theft system for vehicles

Publications (1)

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WO1997001463A1 true WO1997001463A1 (en) 1997-01-16

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PCT/HU1995/000029 WO1997001463A1 (en) 1995-06-26 1995-06-26 Anti-theft system for vehicles

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6081738A (en) * 1998-01-15 2000-06-27 Lumend, Inc. Method and apparatus for the guided bypass of coronary occlusions
US6266550B1 (en) 1998-01-16 2001-07-24 Lumend, Inc. Catheter apparatus for treating arterial occlusions
USD917373S1 (en) 2020-03-19 2021-04-27 Richard Blake Tamagni Catalytic converter cover
USD917374S1 (en) 2020-03-19 2021-04-27 Richard Blake Tamagni Catalytic converter cover
US11897418B2 (en) 2020-02-11 2024-02-13 Ccm Ip Llc System and method for deterrence of catalytic converter theft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB400266A (en) * 1932-04-22 1933-10-23 William Alexander Willock Improvements in or relating to means for preventing the theft of motor road vehicles
US4690240A (en) * 1985-04-01 1987-09-01 Russo Rudolph P Anti-theft exhaust system for vehicles
GB2261027A (en) * 1991-10-25 1993-05-05 Ronald Joachim Jenkins Vehicle exhaust blocking
WO1993022166A1 (en) * 1992-04-24 1993-11-11 Paul David Drake Engine immobilisation systems
WO1994018038A1 (en) * 1993-02-04 1994-08-18 William Kenneth Divers Vehicle security device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB400266A (en) * 1932-04-22 1933-10-23 William Alexander Willock Improvements in or relating to means for preventing the theft of motor road vehicles
US4690240A (en) * 1985-04-01 1987-09-01 Russo Rudolph P Anti-theft exhaust system for vehicles
GB2261027A (en) * 1991-10-25 1993-05-05 Ronald Joachim Jenkins Vehicle exhaust blocking
WO1993022166A1 (en) * 1992-04-24 1993-11-11 Paul David Drake Engine immobilisation systems
WO1994018038A1 (en) * 1993-02-04 1994-08-18 William Kenneth Divers Vehicle security device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6081738A (en) * 1998-01-15 2000-06-27 Lumend, Inc. Method and apparatus for the guided bypass of coronary occlusions
US6157852A (en) * 1998-01-15 2000-12-05 Lumend, Inc. Catheter apparatus for treating arterial occlusions
US6266550B1 (en) 1998-01-16 2001-07-24 Lumend, Inc. Catheter apparatus for treating arterial occlusions
US11897418B2 (en) 2020-02-11 2024-02-13 Ccm Ip Llc System and method for deterrence of catalytic converter theft
USD917373S1 (en) 2020-03-19 2021-04-27 Richard Blake Tamagni Catalytic converter cover
USD917374S1 (en) 2020-03-19 2021-04-27 Richard Blake Tamagni Catalytic converter cover

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