FR2576278A1 - Anti-theft device for boats by bypassing the hydraulic control circuits - Google Patents

Abstract

The subject of the invention relates to an anti-theft device for boats by bypassing the hydraulic control circuits. It is composed of bypasses of the hydraulic control circuits 1, 2 for the rudders, for tipping the engine 4, 5 and stopping a fuel feed pump 9 via a valve provided with a shut-off flap 11 opening or closing the system by control with the aid of a lock bolt 12 which also actuates closure or opening of a circuit 15 actuating a visual smoke-generating or other signal. It is intended to provide total security against theft of craft by locking the control members as soon as the hydraulic circuit is switched on with the combination of a visual alarm by emitting smoke-generating signals to third parties.

Description

The object of the invention relates to an anti-theft device for boats bypassing the hydraulic control circuits
It is intended to ensure total security against the theft of boats by blocking the control members as soon as the hydraulic circuit is started with the combination of a visual alarm by smoke emission signaling to third parties.

 It is known for motor vehicles to use various anti-theft systems using hydraulic circuits, but it has never been applied with the adaptations allowing this industrial transport, a device for blocking the driving or steering members to prevent boat thefts and especially to alert third parties of these diversions.

 The device according to the invention eliminates these drawbacks and makes it possible to immobilize either the gourvernail or the tilting of an outboard engine, or the fuel supply of an inboard engine by adding these defenses not perceptible in the environment visual signaling by smoke signal alerting third parties.

 it consists of branches from the hydraulic circuits for controlling the rudders, tilting the engine and stopping a fuel supply pump through a valve provided with a shutter valve opening or closing the circuit by command to the 'using a lock bolt which also activates the closing or opening of a circuit activating a smoke or other visual signal.

In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the subject of the invention
Figure 1 shows the hydraulic control circuits existing on outboard and inboard motorboats.

 Figures 2, 3, 4 show in the same conditions the internal anti-theft circuits for the tilting of an engine, the locking of the rudder and the fuel supply stop.

 The boats are generally provided with hydraulic circuits 1, 2 for controlling the gourvernail 3, circuit 4, 5 for controlling the tilting of the engine 6 - inboard and finally a tank 7 with pipeline 8 and pump 9 to supply an inboard 10 or outboard engine.

 The anti-theft circuit device is constituted by a non-return valve 11 which under the effect of the bolt 12 cuts the passage of the control fluid between the inlet 13 and the outlet 14 or vice versa.

 The anti-theft device makes it possible to interrupt the hydraulic control circuit for one or more stations while being combined with an electrical contact 15 triggering a preferentially visual alarm, such as a smoke alarm alerting third parties of theft or of the offense.

 Blocking the tilting of the inboard engine 6 (Figure 2) is obtained by connecting the hydroelectric control pump 16 to the outlet 14 of the valve 11 by the branch 17. On the other hand, the outlet of the jack 18 is connected by the branch 19 at the inlet 13 of the valve 11 or vice versa.

 If the passage 13, 14 is closed by the valve 11, the tilting control 18 will be locked in the free position. The engine can no longer be used.

 The locking of the rudder 3 (FIG. 3) is obtained by connecting the sector 1 of the pipe of the steering bar 20 by the branch 21 to the outlet 14 of the valve 11.

 On the other hand, the sector 1 'connecting the bar 20 to the jack 22 is connected by bypass 23 to the inlet 13. The pipe 2 connecting the bar to the inlet of the jack 22 is left intact.

 If the valve 11 closes the passage 13, 14 the bar 3 is blocked and the boat can no longer use its rudder.

It is also possible (FIG. 4) to connect the feed pump 9 of the motor 10 to the bypass 25 brought to the inlet 13 of the valve 11, the reservoir 7 is connected by the bypass 26 to the outlet 14 of the valve. . When the circuit is operating, the motor 10 is supplied normally. On the other hand, in the event of a blockage, the power is cut
These three circuits can be mounted in series with three valves or used separately for the anti-theft blocking of one of the boat's control members relating to the rudder C, the outboard or inboard engine 6 or the power supply - inboard 10 engine fuel.

 They are always combined with the closing or opening of the smoke contact 27 or actuating an audible or other light signal.

 In any event, the new application of anti-theft devices for boats by using the hydraulic control circuits, ensures absolute security avoiding theft and hijacking of boats which had not been avoided until now.

 This transport of industry with technique based on the derivation of hydraulic circuits through a locking element whose bolt opens or closes the normal circuit to implement the blocking circuit has the advantage of not being able to be unsealed by any author of '' a diversion by its possible concealment at any point of the circuit.

 One can use a single valve for a single control member or several valves mounted in series, either placed at different points and each immobilizing a control member without which a boat can be neither towed nor started.

 On the other hand, this silent blocking which can be ignored by third parties is combined with a smoke signal preferably which signals to third parties that a theft is committed.

 This double safety complements the safety and reliability of the device in any event.

 However, the shapes, dimensions and arrangements of the various elements may vary within the limit of equivalents, like the materials used for their manufacture without changing the general conception of the invention which has just been described.

Claims (2)

EVENDICATIO1iS 10 Anti-theft device for boats bypassing hydraulic control circuits intended to ensure total security against theft of boats by blocking the engine's control and power components all combined with a visual alarm alerting third parties characterized by the fact that the circuits (1, 2) for controlling the gourvernail (3) for controlling the tilting of the motor (6) for controlling the pump (9) supplying the motor (10) are connected by diversions to a valve (11) closing or opening the passage (13, 14) of the walking circuit by means of a key and a bolt (12) also controlling an alarm circuit (15) connected to a smoke generator (27) or visual or audible signal .  20 Device according to Claim 1, characterized in that the blocking of the tilting of the motor (6) is obtained by branches (17, 19) connected to the pump (16) and to the jack (18) as well as to the valve. (11) through the inlet (13) and (14) distribution orifices.  30 Device according to Claim 1, characterized in that the locking of the rudder (3) is effected by the branches (21, 22) installed on the circuit (1, 2) connected to the jack (22) and to the valve (11 ) through the inputs (13) and outputs (14).  4 "Device according to claim 1 characterized in that the blocking of the motor supply (10) is effected by a bypass (25) connected to the pump (9) and to the inlet (13) of the valve (11) and a bypass (26)) plunging into the tank connected to the outlet (14) of the valve 11).  50 -Device according to claim 1, characterized in that the bolt (12) of the stop device opens or closes an electrical circuit (15) connected to the smoke generator (27) or external signal.