JP2004068714A - Foolproof mechanism for washing kit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foolproof mechanism for a washing kit for automatically starting an engine even when supplying water into the engine in the stopped condition of the engine. <P>SOLUTION: The washing kit consists of a detachable engine connection side kit 20 and a water supply hose side kit 30. An inner cylinder 33 is provided in the water supply hose side kit 30 for closing a channel with the resilience of a coil spring 34 and for opening the channel with the water supply hose side kit 30 lowered by water pressure when water is supplied thereinto. Furthermore, a second switch 26, which is on with the inner cylinder 33 lowered when the first switch 23 is on, is provided for starting the engine 13. A ready buzzer 44 on which a run yard 42 is mounted is provided for generating a start possible signal for the engine 13 when the security of a security mechanism 43 is cancelled. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a foolproof mechanism in a water washing kit for connecting an engine connecting portion that supplies water to an engine of a water vehicle and a water supply hose when the engine is washed with water.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been a water vehicle that travels on water by injecting water sucked from a ship bottom toward aft of a stern. In this water vehicle, it is necessary to periodically wash a cooling water line in the engine with water in order to prevent rust from being generated inside the engine due to seawater. In this case, the end of the water supply hose connected to the tap is connected to the connection on the engine side via the flush kit, and the tap water is supplied to the cooling water line of the engine, so that the flushing of the engine is performed. Is being done.
[0003]
[Problems to be solved by the invention]
In such a case, if tap water is supplied into the engine while the driving of the engine is stopped, the tap water enters the exhaust pipe and damages the engine. For this reason, tap water is supplied while the engine is driven, and seawater in the engine or supplied tap water is drained to the outside. However, when performing such an operation, the operator sometimes forgets to supply tap water to the engine without driving the engine. As a result, there has been a problem that the tap water and the fuel are mixed in the engine and the engine is damaged.
[0004]
Summary of the Invention
The present invention has been made in order to address the above-described problem, and an object of the present invention is to provide a flush kit that can automatically start an engine even when water is supplied to the engine while the engine is stopped. It is to provide a foolproof mechanism.
[0005]
In order to achieve the above-mentioned object, a configuration feature of the foolproof mechanism in the flush kit according to the present invention is characterized in that a flush kit for coupling an engine connection portion and a water supply hose when flushing an engine of a water vehicle. In the foolproof mechanism, one end is attached to the engine connecting portion, and the other end is attached to the end of the water supply hose. And a start switch for operating the engine when water is supplied through the start switch.
[0006]
In the foolproof mechanism in the flush kit of the present invention configured as described above, when water is supplied into the flush kit, a start switch is operated to start the engine. Therefore, the engine always starts when water is supplied from the water supply hose into the engine, and it is possible to prevent the water from being fed into the engine when the engine is stopped.
[0007]
Another structural feature of the fool-proof mechanism in the flush kit according to the present invention is that the inside of the flush kit uses the elasticity of the urging member to close the water passage of the flush kit, and that the flush kit contains water. When water is supplied via the supply hose, a valve member is provided that moves by water pressure against the elasticity of the biasing member to open the water passage of the flush kit, and the start switch is operated by movement of the valve member. I did it.
[0008]
In the fool-proof mechanism of the flush kit of the present invention configured as described above, the flush kit that connects the engine connecting portion and the water supply hose is provided with a valve member and a biasing member, and utilizes the elasticity of the biasing member. The water channel of the flush kit can be closed by the valve member. Then, when water is supplied into the flush kit, the valve member moves by the water pressure to open the water channel of the flush kit. Further, when the start switch is operated by the movement of the valve member, the engine is started. Therefore, when water is supplied from the water supply hose into the engine, the engine starts, and when the engine is stopped, water can be prevented from being fed into the engine.
[0009]
Further, still another structural feature of the foolproof mechanism in the flush kit according to the present invention is that the flush kit includes an engine connecting part side kit and a water supply hose side kit which are detachable from each other. A connection confirmation switch that operates when the kit and the water supply hose side kit are coupled is provided, and the start switch can start the engine only when the connection confirmation switch is activated. .
[0010]
The foolproof mechanism in the flush kit of the present invention thus configured is provided with a connection confirmation switch that operates when the kit for the engine connection portion and the kit for the water supply hose constituting the flush kit are provided. The start switch allows the engine to start only when the start switch is activated. Therefore, when the engine connection part kit and the water supply hose side kit are not connected, for example, even if an object hits the start switch or the start switch is activated, the start switch starts the engine. I can't.
[0011]
As a result, the engine connection part side kit and the water supply hose side kit are connected, and the engine can be started only when the water supply into the engine is ready. In addition, since the water washing kit is composed of the engine connecting part side kit and the water supply hose side kit which can be detached from each other, the mounting of the start switch and the connection confirmation switch becomes easy.
[0012]
Another structural feature of the fool-proof mechanism in the flush kit according to the present invention is that the fool-proof mechanism in the flush kit for connecting the engine connection portion and the water supply hose when flushing the engine of the water vehicle. A lanyard that enables the engine to be driven by being mounted on a predetermined portion of the water vehicle, or a security mechanism that disables the driving of the engine, and a signal when the lanyard is mounted or the security by the security mechanism is released. Is provided.
[0013]
In the fool-proof mechanism of the flush kit of the present invention configured as described above, the lanyard is mounted or the security is released by the security mechanism by the signal generated by the signal generating device, and the engine can be started. You can know that. Thereby, it is possible to prevent water from being supplied to the engine by mistake when the engine cannot be started. In this case, the signal generator can generate a signal when both the lanyard is mounted and the security is released by the security mechanism. This signal includes a sound and image display.
[0014]
Further, still another structural feature of the foolproof mechanism in the flush kit according to the present invention is that the flush kit includes an engine connecting part side kit and a water supply hose side kit which are detachable from each other. There is provided a connection confirmation switch that is activated when the kit and the water supply hose side kit are coupled, and the signal generator emits a signal only when the connection confirmation switch is activated.
[0015]
The foolproof mechanism in the flush kit of the present invention thus configured is provided with a connection confirmation switch that operates when the kit for the engine connection portion and the kit for the water supply hose constituting the flush kit are provided. The signal generator emits a signal only when the power switch is activated. Therefore, it is possible to prevent water from being supplied to the washing kit when the engine connection part side kit and the water supply hose side kit are not connected.
[0016]
As a result, only when the engine connection part side kit and the water supply hose side kit are connected and the water supply into the engine is ready, the signal that the engine can be started and the water supply You can know that it is possible. In addition, the operation of the start switch and the connection confirmation switch described above is not limited to changing from the off state to the on state, but may be changing from the on state to the off state.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a water vehicle provided with a foolproof mechanism in a water washing kit according to the present invention. In this water vehicle, a steering handle 11 is provided substantially at the center of an upper portion of a hull 10, and a seat 12 is provided behind the steering wheel 11. An engine 13 is provided at the bottom center of the hull 10, and a shaft 14 of an impeller (not shown) connected to a drive shaft of the engine extends rearward from the rear of the engine 13. The shaft 14 is connected to an impeller mounted inside a propulsion device 15 provided at the stern of the hull 10, and transmits the torque of the drive shaft driven by the engine 13 to the impeller to rotate the impeller.
[0018]
The propulsion device 15 also includes a water inlet 15a opening at the bottom of the hull 10 and a water outlet 15b opening at the stern. The water introduced from the water inlet 15a is supplied to the water outlet by rotation of the impeller. Propulsion force is generated in the hull 10 by injecting it from 15b. The propulsion device 15 is attached to the bottom of the stern of the hull 10 in a state of being isolated from the main body side of the hull 10 by a casing 15c. It extends to the propulsion device 15.
[0019]
Further, from the engine 13, an exhaust expansion chamber 16 formed of a tube bent upward extends. The exhaust expansion chamber 16 extends forward from one side of the engine 13 and then extends upward in a circular arc, further extends rearward above the engine 13, and the rear end extends downward to form the casing 15 c. Reached nearby. The exhaust expansion chamber 16 has a central portion formed into a large-diameter tube, and both end portions formed into small-diameter tubes.
[0020]
The rear end of the exhaust expansion chamber 16 further extends to the other side in the hull 10 and communicates with the front of the water lock 17. The water lock 17 is formed in a tank shape, and a bifurcated downstream exhaust gas pipe 18 extends rearward from the rear upper surface. The upstream end of the downstream exhaust gas pipe 18 communicates with the upper surface of the water lock 17, and the downstream side branches left and right and extends upward once, then extends downward and rearward. And merges with the water injection port 15 b of the propulsion device 15.
[0021]
Further, an engine hatch 10a is formed below the seat 12 in the hull 10, and the engine connection side kit 20 shown in FIG. 2 is attached to the engine hatch 10a. The engine connecting part side kit 20 is used when washing the cooling water line in the engine 13 with a rubber cooling water hose 21 as an engine connecting part of the present invention connected to a lower end part. Connected to the engine 13. The engine connecting part side kit 20 is exposed on the upper surface of the hull 10 by removing the seat 12.
[0022]
As shown in FIG. 2, the main body 22 of the engine connection part side kit 20 is made of a metal formed in a cylindrical shape, and a screw 22a is provided on an upper part of an inner peripheral surface thereof. A first switch 23, which is a connection confirmation switch of the present invention, is attached to a lower end position of the screw 22a on the inner peripheral surface of the main body 22. At the center of the lower end of the main body 22, a switch mounting portion 25 is provided via a plurality of mounting pieces 24 extending from the inner peripheral surface of the main body 22 toward the center of the main body 22. A second switch 26, which is a start switch of the present invention, is attached.
[0023]
The first switch 23 and the second switch 26 are turned on when both are pressed from above. A flange-like projection 27 is formed on the outer periphery of the upper part of the main body 22. The opening of the engine connecting part side kit 20 is closed by covering the upper end of the main body 22 with a lid 28 except when the inside of the engine 13 is washed with water.
[0024]
FIG. 3 shows a water supply hose side kit 30 connected to the engine connection part kit 20 when the inside of the engine 13 is washed with water. The water supply hose side kit 30 is configured to be connectable to a tap of a water supply as a water supply source via a rubber water supply hose 31 connected to an upper part, and includes a metal cylindrical main body 32, An inner cylinder 33, which is a valve member of the present invention, movably mounted in the main body 32, and a coil spring 34, which is an urging member of the present invention, is provided.
[0025]
As shown in FIG. 3, the main body 32 is formed in a cylindrical shape, and a screw 32 a that can be screwed to the screw 22 a of the main body 22 is provided at a lower portion of the outer peripheral surface thereof. It is removable. Further, on the inner peripheral surface of the main body 32, there is provided a step portion 32b in which a lower portion of the main body 32 is formed thick and a central portion and an upper portion are formed thin. For this reason, the diameter of the hole in the main body 32 is small at the lower part and large at the center and the upper part.
[0026]
The inner cylinder 33 is formed in a cylindrical shape with a bottom that is in sliding contact with the lower portion of the inner peripheral surface of the main body 32, and has a flange-shaped projection that is in sliding contact with the central portion and the upper portion of the inner peripheral surface of the main body 32 at the outer peripheral upper end. 33a are formed. At the lower end of the inner cylinder 33, a plurality of holes 33b serving as water channels are provided at regular intervals along the peripheral surface. A coil spring 34 is attached to a space 35 surrounded by the step 32b of the main body 32, the protrusion 33a of the inner cylinder 33, and the inner peripheral surface of the main body 32 and the outer peripheral surface of the inner cylinder 33.
[0027]
Therefore, the inner cylinder 33 is installed in the main body 32 with the hole 33b closed at the lower portion of the inner peripheral surface of the main body 32 in a state of being urged upward by the coil spring 34.
Further, when the inner cylinder 33 is moved downward with respect to the main body 32 against the elasticity of the coil spring 34, the hole 33 b of the inner cylinder 33 is released from the closed state by the lower inner peripheral surface of the main body 32. Open. The elastic force of the coil spring 34 is set to a size that can support the inner cylinder 33 and easily contracts when water is supplied into the inner cylinder 33. A C-shaped clip 36 is fixed to the upper part of the inner peripheral surface of the main body 32 to prevent the inner cylinder 33 from coming off from the main body 32.
[0028]
The water vehicle according to the present embodiment includes, in addition to the above-described devices, an electric control device 40, a start switch 41, a lanyard 42, a security mechanism 43 shown in FIG. A buzzer 44 and a warning buzzer 45 are also provided. The electric control device 40 includes a CPU, a ROM storing a program to be described later, and the like. The electric control device 40 is connected to a start switch 41, a first switch 23, a second switch 26, a lanyard 42, and a security mechanism 43. Input signals from switches and devices.
[0029]
The start switch 41 is configured by an ignition switch that starts the engine 13 by being turned on by an operation of an operator or control of the CPU of the electric control device 40. The lanyard 42 is configured by connecting a string to a terminal that is engaged with a kill switch provided on a predetermined portion of the steering handle 11, and connecting a ring that can be attached to a driver's wrist to an end of the string. I have.
[0030]
Therefore, for example, if the driver falls into the sea while the water vehicle is running, the terminal of the lanyard 42 comes off, and the kill switch operates. By the operation of the kill switch, the start switch 41 is turned off and the engine 13 stops. Therefore, when the lanyard 42 is mounted on the steering wheel 11, the engine 13 can be started, and when the lanyard 42 is off the steering wheel 11, the engine 13 cannot be driven.
[0031]
The security mechanism 43 is configured by an immobilizer for preventing theft, and by activating the immobilizer, the engine 13 cannot be started. Further, by releasing the security by the security mechanism 43, the engine 13 becomes ready to start. The preparation OK buzzer 44 emits a sound based on a signal from the electric control device 40 when the lanyard 42 is mounted and the security mechanism 43 releases the security.
[0032]
The warning buzzer 45 emits a sound based on a signal from the electric control device 40 when at least one of the mounting of the lanyard 42 and the release of the security of the security mechanism 43 is not performed. The electric control device 40 starts the engine 13 when an ON signal is input from the second switch 26 after the mounting signal from the lanyard 42 and the security release signal from the security mechanism 43 are input. The CPU of the electric control device 40 starts executing the program when the first switch 23 is turned on.
[0033]
Next, the operation when the engine 13 of the water vehicle configured as described above is washed with water and the control performed by the electric control device 40 will be described. First, the operator removes the seat 12 of the hull 10 and removes the lid 20 from the engine connecting part side kit 20. Then, as shown in FIG. 5, the screw 32 a of the main body 32 is screwed into the screw 22 a of the main body 22 to connect the engine connecting part side kit 20 and the water supply hose side kit 30. Then, the lower end of the water supply hose side kit 30 is brought into contact with the first switch 23 as shown in FIG.
[0034]
By contact with the water supply hose side kit 30, the first switch 23 is turned on, and the program of the flowchart shown in FIG. 7 is executed. The program is started in step 100, and the CPU of the electric control device 40 checks the mounting of the lanyard 42 and the security release check of the security mechanism 43 in step 102, and then determines whether or not the preparation is OK in step 104. I do. Here, the mounting of the lanyard 42 and the release of the security of the security mechanism 43 are performed, and if "YES" is determined, the process proceeds to step 106 to sound the preparation OK buzzer 44.
[0035]
If the lanyard 42 has not been mounted and the security of the security mechanism 43 has not been released, and the determination is "NO", the process proceeds to step 108 to sound the warning buzzer 45, and the program returns to step 104. Then, as long as the lanyard 42 is mounted and the security mechanism 43 is released, the processing of steps 104 and 108 is continuously performed, and the warning buzzer 45 is continuously sounded.
[0036]
During the circulation processing in steps 104 and 108, the operator performs the operation of mounting the lanyard 42 and releasing the security of the security mechanism 43. Accordingly, the CPU determines “YES” in step 104, and the program proceeds to step 106 to make the preparation OK buzzer 44 sound. After the process of step 106, the electric control device 40 starts executing the circulation process including steps 110 and 112.
[0037]
On the other hand, the operator knows that the engine 13 can be started and that tap water can be supplied, opens the water tap, turns on the start switch 41, and starts the engine 13. As a result, tap water is pressed into the water supply hose side kit 30 via the water supply hose 31, and the inner cylinder 33 of the water supply hose side kit 30 descends while pressing and contracting the coil spring 34 with the projection 33a. Then, the state shown in FIG. 8 or 9 is obtained. As a result, the hole 33b of the inner cylinder 33 is opened, and the tap water supplied into the water supply hose side kit 30 passes through the hole 33b and proceeds into the engine connection part side kit 20, and the cooling water hose It is sent to the engine 13 via 21.
[0038]
In step 110 during the circulation process consisting of steps 110 and 112, it is determined whether or not the engine 13 has been started. In step 112, it is determined whether or not the second switch 26 is on. Here, since the start switch 41 has already been turned on and the engine 13 has been driven, "YES" is determined and the routine proceeds to step 116, where the program ends. In addition, if tap water is supplied while the engine 13 is stopped and the start switch 41 is forgotten to be turned on, “NO” is determined in step 110.
[0039]
Here, if the lower end surface of the inner cylinder 33 in the water supply hose side kit 30 is not in contact with the second switch 26 as shown in FIG. Proceeding to step 110, the circulation processing of steps 110 and 112 is continued to be executed. This process is repeated until the lower end surface of the inner cylinder 33 in the water supply hose side kit 30 contacts the second switch 26 as shown in FIG. Then, the lower end surface of the inner cylinder 33 contacts the second switch 26, and the second switch 26 is turned on. If “YES” is determined in the step 112, the program proceeds to a step 114.
[0040]
In step 114, the engine 13 is forcibly started under the control of the electric control device 40. Then, the program proceeds to step 116 and ends. Thereby, the tap water is supplied into the engine 13 while the engine 13 is driven. As a result, by using the water vehicle, the seawater accumulated in the engine 13 is washed away together with the supplied tap water.
[0041]
In this case, the supplied tap water passes through the cooling water line of the engine 13, then passes through the exhaust expansion chamber 16, the water lock 17, and the downstream exhaust gas pipe 18, and is discharged from the water injection port 15b to the outside. . When the flushing of the engine 13 is completed and the faucet is closed, the supply of the tap water is stopped, and the inner cylinder 33 moves upward by the elasticity of the coil spring 34. Thus, when the second switch 26 is turned off, the engine 13 is stopped by a program process (not shown).
[0042]
As described above, in the water vehicle according to the present embodiment, when the tap water is supplied into the water supply hose side kit 30 while the operation of the start switch 41 is forgotten, the inner cylinder 33 is lowered by the water pressure and the inner cylinder 33 is lowered. The opening 33b of the opening 33 is opened, and the lowering of the inner cylinder 33 activates the second switch 26, whereby the engine 13 is forcibly started. Therefore, when tap water is supplied from the water supply hose 31 into the engine 13, the engine 13 always starts, and when the engine 13 is stopped, water can be prevented from being sent into the engine 13. .
As a result, it is possible to prevent the tap water from flowing back into the engine and damaging the engine.
[0043]
In addition, when the lanyard 42 is mounted or the security is released by the security mechanism 43, the preparation OK buzzer 44 sounds, so that the engine 13 can be started. As a result, it is possible to prevent water from being supplied to the engine 13 by mistake when the engine 13 cannot be started.
Also, when the water supply hose side kit 30 is attached to the engine connection part side kit 20 and the first switch 23 is turned on, the program of FIG. 7 is executed, and the second switch 26 is also turned on. Then, the engine 13 is automatically and forcibly started without turning on the start switch 41. Therefore, even when the second switch 26 is turned on when the engine connection side kit 20 and the water supply hose side kit 30 are not connected, the engine 13 is not started, and the engine connection side kit 20 The water supply hose side kit 30 is connected to the water supply hose kit 30 so that the engine 13 can be forcibly and automatically started only when the water supply into the engine 13 is ready.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a water vehicle provided with a foolproof mechanism in a water washing kit according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an engine connection part side kit.
FIG. 3 is a sectional view showing a water supply hose side kit.
FIG. 4 is a block diagram showing an electric control device provided in the water vehicle.
FIG. 5 is a cross-sectional view showing a state where a water supply hose side kit is attached to the engine connection part side kit.
FIG. 6 is a cross-sectional view showing a state where the water supply hose side kit shown in FIG. 5 is lowered and brought into contact with a first switch.
FIG. 7 is a flowchart illustrating a program executed by a CPU included in the electric control device.
8 is a cross-sectional view showing a state when tap water is supplied to the water supply hose side kit shown in FIG.
FIG. 9 is a cross-sectional view showing a state where the water supply hose side kit shown in FIG. 8 is lowered and brought into contact with a second switch.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Hull, 13 ... Engine, 20 ... Engine connection part side kit, 21 ... Cooling water hose, 22, 32 ... Main body, 23 ... First switch, 26 ... Second switch, 30 ... Water supply hose side kit, 31 ... water supply hose, 33 ... inner cylinder, 33b ... hole, 34 ... coil spring, 40 ... electric control device, 41 ... start switch, 42 ... lanyard, 43 ... security mechanism, 44 ... preparation OK buzzer, 45 ... warning buzzer.

Claims (5)

In a fool-proof mechanism in a water washing kit for connecting an engine connection portion and a water supply hose when washing an engine of a water vehicle,
A cylindrical water washing kit having one end attached to the engine connection portion and the other end attached to the end of the water supply hose;
A flush switch provided inside the flush kit, comprising: a start switch that starts when the water is supplied to the flush kit via the water supply hose and starts the engine. Foolproof mechanism. Inside the water washing kit, the elasticity of the urging member is used to close the water passage of the water washing kit, and when water is supplied into the water washing kit via the water supply hose, 2. A foolproof mechanism in a flush kit according to claim 1, wherein a valve member is provided which moves by water pressure against elasticity to open a water passage of the flush kit, and the start switch is operated by movement of the valve member. . The water washing kit is composed of a detachable engine connection part side kit and a water supply hose side kit, and is used for connection confirmation that operates when the engine connection part side kit and the water supply hose side kit are connected. The foolproof mechanism in the flush kit according to claim 1 or 2, further comprising a switch, wherein the start switch can start the engine only when the connection confirmation switch is operated. In a fool-proof mechanism in a water washing kit for connecting an engine connection portion and a water supply hose when washing an engine of a water vehicle,
A lanyard that enables driving of the engine by being mounted on a predetermined portion of the water vehicle or a security mechanism that disables driving of the engine is provided, and when the security of the mounting of the lanyard or the security mechanism is released. A foolproof mechanism in a water washing kit, comprising a signal generator for emitting a signal. The water washing kit is composed of a detachable engine connection part side kit and a water supply hose side kit, and is used for connection confirmation that operates when the engine connection part side kit and the water supply hose side kit are connected. The foolproof mechanism in the flush kit according to claim 4, wherein a switch is provided, and the signal generator emits a signal only when the connection confirmation switch is operated.

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