JPH0571069U - In-vehicle tire cleaning device - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the weight of the components of tire cleaning equipment,
Increase vehicle loading capacity and facilitate vehicle layout. [Structure] The branch pipes 5A, 5B to which the tire cleaning nozzle 6 is attached are provided with electromagnetic opening / closing valves 8A, 8B, respectively, and control means for controlling the electromagnetic opening / closing valves 8A, 8B are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle-mounted cleaning device that removes mud and the like adhering to tires.

[0002]

[Prior Art]

 It has a water pump driven by an engine through an electromagnetic clutch, branches the water pipe from the water pump into a plurality of pipes, and attaches a nozzle to each branch pipe in the vicinity of the tire of the vehicle. Vehicle-mounted tire cleaning devices that spray water to clean tires are already known.

FIG. 7 shows a water pipe of a conventional tire cleaning apparatus of this type, 1 is an automobile engine, 2 is an electromagnetic clutch, 3 is a water pump, 4 is a water tank, 5 is a water pipe, and 5 A is a right tie. Branch pipe on the side of the tire, 5B is a branch pipe on the side of the left tire, 6 is a nozzle attached to each of the branch pipes 5A and 5B close to the tire, 7 is a pressure regulating valve, and in the example shown, the nozzle 6 is 5 on the right side. , A total of 10 on the left side.

When the electromagnetic clutch 2 is turned on and the water pump 3 is driven by the engine 1, water is sucked up from the water tank 4, and water is jetted simultaneously from the ten nozzles 6 through the water pipe 5, the branch pipes 5A and 5B. Clean the tires.

[0005]

[Problems to be solved by the device]

 By the way, in the case of the conventional device described above, a high-capacity water pump is required because high-pressure water is jetted at once from the 10 nozzles for the left and right tires. The weight of the pump will increase, and the load on the vehicle will decrease accordingly. Also, the mountability of the electromagnetic clutch and the water pump becomes poor.

The present invention has been made to solve the above-mentioned problems of the conventional device, and can sufficiently wash the tires with a small capacity water pump, reduce the weight of system components, The purpose of the present invention is to provide an in-vehicle tire cleaning device that increases the load capacity of the vehicle and facilitates in-vehicle layout.

[0007]

[Means for Solving the Problems]

 Therefore, according to the present invention, the water pump driven by the engine through the electromagnetic clutch is provided, and the water pipe of the water pump is branched into a plurality of pipes, and each branch pipe is brought close to the tire of the vehicle. In a vehicle-mounted tire cleaning device for mounting a nozzle and injecting water from the nozzle to wash a tire, an on-vehicle vehicle provided with an electromagnetic opening / closing valve for each branch pipe and a control means for controlling opening / closing of the electromagnetic opening / closing valve. A tire cleaning device is provided.

[0008]

[Action]

 When the washing switch is rotated to the R side, the electromagnetic clutch is turned on and the water pump is driven by the engine, and at the same time, the electromagnetic on-off valve provided on the right branch pipe opens, and the water discharged by the water pump moves to the right side. It is sprayed from the nozzle provided on the branch pipe to clean the right tire. When the washing switch is rotated to the L side, the electromagnetic clutch is turned on and the water pump is driven by the engine, and at the same time, the electromagnetic on-off valve provided on the left branch pipe opens, and the water discharged by the water pump is left side. The left side tire is washed by being sprayed from the nozzle provided on the branch pipe.

As described above, depending on whether the cleaning switch is rotated to the R side or the L side, the electromagnetic opening / closing valve provided in one of the branch pipes is opened, and water is jetted from the nozzle on the branch pipe side. The tire on one side is washed.

[0010] In addition to branching the branch pipe into right and left tires and left and right tires so that each branch pipe is provided with an electromagnetic opening / closing valve, branching back and forth is provided with an electromagnetic opening / closing valve in each branch pipe, The front and rear tires may be washed separately. Further, the opening / closing control of the left and right (front and rear) electromagnetic opening / closing valves may be automatically performed using a timer and a relay.

[0011]

【Example】

 FIG. 1 shows a state in which a vehicle is equipped with a tire cleaning apparatus, and FIG. 2 shows a water pipe section. In the figure, a water pump 3 driven by an engine 1 of the vehicle via a clutch 2 is provided. The water pipe 5 from the water pump 3 branches into a right branch pipe 5A and a left branch pipe 5B. A nozzle 6 is attached to each of the branch pipes 5A and 5B in the vicinity of each tire. The illustrated example is a large-sized truck having one front wheel tire on one side and four front wheel tires on the front and rear sides. Five nozzles 6 are attached to each branch pipe 5A, 5B. Reference numeral 7 is a pressure regulating valve, and the above is the same as the conventional tire cleaning device described above. In the present invention, each branch pipe 5A, 5B is provided with an electromagnetic on-off valve 8A, 8B.

Further, in the example shown in FIG. 1, the water pipe 5 from the water pump 3 is branched into front and rear branch pipes 5C and 5D, and electromagnetic opening / closing valves 8C and 8D are provided in the respective branch pipes 5C and 5D. It

FIG. 3 shows an electric circuit of the tire cleaning apparatus, FIG. 4 shows a tire cleaning switch, 2 is an electromagnetic clutch provided between the engine and the water pump, and 8′A and 8′B are electromagnetically closed. An electromagnet 9 of the valve is an ECU that turns on (22 V) when the engine speed is less than 1200 rpm and turns off (0 V) when the engine speed is 1200 rpm or more. Reference numeral 10 denotes a tire washing switch which is manually operated, and includes an R side switch, an L side switch, and an OFF switch. 11A, 11B and 11C are relays, and 12 is a level sensor provided in the water tank, which is turned off when there is water and turned on when there is no water. 13 is a water level alarm monitor lamp, and 14 is a battery (24V).

Now, when the tire washing switch 10 is rotated to the R side, when the positive power source is connected by the ECU 9 (when the engine speed is less than 1200 rpm) and when the water level in the water tank is sufficient, the electromagnetic clutch 2 is turned on, and at the same time, the electromagnet 8'A for the right side connected in parallel with the electromagnetic clutch 2 is actuated to open the electromagnetic on-off valve 8A on the right side. Therefore, the water discharged by the water pump 3 flows through the electromagnetic opening / closing valve 8A on the right side to the nozzle 6 provided on the branch pipe 5A on the right side to wash the right tire.

When the tire washing switch 10 is rotated to the L side, the electromagnetic clutch 2 and the left-side electromagnet 8'B are activated to open the left-side electromagnetic opening / closing valve 8B. Therefore, the water discharged by the water pump 3 flows through the electromagnetic opening / closing valve 8B on the left side to the nozzle 6 provided on the branch pipe 5B on the left side to wash the left tire.

In the case of this embodiment, the driver can arbitrarily change the cleaning time according to how the tire is soiled, and only the tire on the soiled side can be determined by the driver and washed only there.

FIG. 5 shows an electric circuit of the tire cleaning apparatus when a timer is used. When the tire cleaning switch 10 is turned on, the timer 15A operates and the ECU 9 is connected to a positive power source (engine rotation speed). Is less than 1200 rpm) and when the water level in the water tank is sufficient, the electromagnetic clutch 2 is turned on, and at the same time, the timer 15B is activated, the electromagnet 8'A for the right side is activated, and the electromagnetic on-off valve 8A on the right side is activated. open. The electromagnetic opening / closing valve 8A on the right side is opened for a set time of the timer 15B (for example, 6S), and water is jetted from the nozzle 6 provided on the branch pipe 5A on the right side to wash the tire on the right side. When the operation of the timer 15B ends, the left-side electromagnet 8'B operates and the left-side electromagnetic opening / closing valve 8B opens, so that the left-side tire is cleaned. When the set time (for example, 12S) of the timer 15A ends, the electromagnet 2 and the left electromagnet 8'B are turned off, and the tire washing is stopped.

FIG. 6 is an operation time chart of the electromagnetic clutch 2 and the electromagnets 8′A and 8′B (electromagnetic opening / closing valves 8A and 8B), which are two electromagnets 8′A and 8′B (electromagnetic opening / closing valves 8A and 8B). ) Alternate, and the left and right tires are washed alternately.

According to this embodiment, it is possible to prevent the user from forgetting to drain water by making the water discharge time uniform, and save water in the water tank.

[0020]

[Effect of the device]

 According to the present invention, each branch pipe is provided with an electromagnetic on-off valve, and the electromagnetic on-off valve is controlled. Therefore, one of the electromagnetic on-off valves of each branch pipe is opened and the other is closed. The tires are cleaned with a water pump of a smaller capacity, which reduces the weight of system components by reducing the weight of the electromagnetic clutch, water pump, etc., thereby increasing the vehicle load and cleaning. In-vehicle layout of the system becomes easy.

[Brief description of drawings]

FIG. 1 is a vehicle layout diagram of a tire cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a view showing the water pipe section of FIG.

FIG. 3 is a diagram showing an electric circuit of the tire cleaning apparatus according to the first embodiment of the present invention.

FIG. 4 is a view showing a tire cleaning switch.

FIG. 5 is a diagram showing an electric circuit of a tire cleaning apparatus according to a second embodiment of the present invention.

FIG. 6 is an operation time chart of the electromagnetic clutch and the electromagnetic opening / closing valve of FIG.

FIG. 7 is a view showing a water pipe section of a conventional tire cleaning apparatus.

[Explanation of symbols]

 1 ... Engine 2 ... Electromagnetic clutch 3 ... Water pump 4 ... Water tank 5 ... Water piping 5A, 5B, 5C, 5D ... Branch pipe 6 ... Nozzle 7 ... Pressure regulating valve 8A, 8B, 8C, 8D ... Electromagnetic on-off valve

Claims (1)

[Scope of utility model registration request] 1. A water pump driven by an engine through an electromagnetic clutch, wherein water pipes from the water pump are branched into a plurality of pipes, and nozzles are attached to the respective branch pipes in proximity to vehicle tires. In a vehicle-mounted tire cleaning device for injecting water from the nozzle to wash a tire, each branch pipe is provided with an electromagnetic opening / closing valve, and a control means for controlling opening / closing of the electromagnetic opening / closing valve is provided. In-vehicle tire cleaning device.