JPS63240406A - Vehicle - Google Patents

Abstract

PURPOSE:To make it possible to arbitrarily adjust an air pressure of tires even in driving a vehicle and thereby obtain a proper air pressure at all times, by connecting a compressed air supplying device mounted on a vehicle body to the tires through a pressure adjusting device operable at a driver's seat. CONSTITUTION:Air filling members 5 and 6 are attached to tires 3 and 4 located at front and rear portions of a vehicle body 2 of a vehicle, e.g., a large truck 1. A compressor 8 adapted to be driven by an on-vehicle engine 7 is provided to supply a compressed air through a piping 9 to the air filling members 5 and 6 and fill the air into the tires 3 and 4. A pressure adjusting device 10 is located in the piping 9 at a position upstream of the air filling members 5 and 6. The pressure adjusting device 10 is operated by a control knob 11 located at a driver's seat. Accordingly, even in driving the vehicle, the air pressure of the tires 3 and 4 may be arbitrarily adjusted by operating the control knob 11, and a proper air pressure may be obtained at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a vehicle that is capable of adjusting the air pressure of its tires even while the vehicle is in operation, depending on the road surface condition or the contact state between the tires and the road surface.

[Prior art]

In automobiles, in order to meet requirements such as driving performance, load resistance, vibration resistance, and stability, it is necessary to set tire air pressure to the most appropriate pressure for the road surface condition and the loaded load.

If the condition of the road surface is constant, it is sufficient to maintain a constant air pressure at all times, but in reality, the condition of the road surface is concrete or asphalt.

There are many different types of soil, such as gravel, soil, and sand, and it is problematic to keep the air pressure constant.

For example, if a large trunk is loaded with heavy cargo and transported to a designated location, and the return journey is with almost no cargo on board, the tire pressure may be increased higher than normal on the outbound trip. By lowering the tire pressure on the return trip, stable driving can be achieved.

Furthermore, in competition vehicles that run on places where the ground contact conditions of the tires change significantly, such as flat areas, urban areas, sandy areas, or soft roads, the tire pressure must be adjusted significantly.

As mentioned above, the road surface on which a vehicle travels changes in a wide variety of ways. For example, when driving on desert or soft ground, low-pressure tires are generally used, and the tire pressure is lowered accordingly. , -GTo drive on roads, tire pressure must be increased.

Due to the above-mentioned circumstances, it is necessary to obtain tire pressure that is appropriate for the road surface condition. To do this, the tire pressure is usually adjusted at a factory with air supply equipment, or the tire pressure is adjusted by removing the tire. Had to adjust and reinstall that tire.

Therefore, even if it is necessary to change the tire pressure, it is practically impossible due to the presence or absence of air supply equipment and the complexity involved in changing the tire pressure. For this reason, conventionally, even if there is a slight problem in driving, the actual situation is that the vehicle is driven without adjusting the tire pressure.

However, as mentioned above, when driving a truck through soft terrain, especially desert areas, or when using special tires, it becomes more necessary to adjust the tire pressure, so an air filling machine is installed on the truck bed, etc. The current situation is that we are responding by doing so.

However, with this method, each time the tire pressure is changed, it is necessary to stop the vehicle, connect a hose to each tire, and operate the filling machine, which is quite a complicated task.

Further, if a tire gets flat while the vehicle is running, the air pressure of the tire rapidly decreases, often making it impossible or difficult to steer the vehicle.

[Purpose of the invention]

The present invention has been achieved in order to solve the problems of the conventional vehicles, and its first purpose is to improve the road surface condition, load condition, or To provide a vehicle that can easily adjust tire pressure even while traveling without having to stop the vehicle and change the tire pressure every time the traveling speed etc. changes. .

The second purpose is that even in the event of an emergency such as a tire blowing out while driving, if a tire pressure abnormality warning device is installed, it will not only alert you to the abnormality but also prevent the pressure from decreasing and allow you to safely move to an evacuation area. The purpose is to provide a vehicle that can reach the destination.

[Summary of the invention]

To achieve the above object, the present invention provides a vehicle in which a compressed air supply device mounted on a vehicle body and a tire are connected through an adjustment device so that the air pressure can be easily adjusted. In a preferred embodiment, a vehicle is provided in which the tire air pressure can be adjusted while remaining in the driver's seat.

The present invention connects a compressed air supply device such as a compressor mounted on a vehicle body to a tire via a compressed air adjustment device.

This compressed air adjustment device can be adjusted manually from the driver's seat while the vehicle is running, or by collecting various information associated with the vehicle's running, such as the contact status between the tires and the road surface, such as vehicle speed, weight, road surface condition, etc. It is possible to adopt a device that can detect this with a sensor and automatically adjust it.

〔Example〕

FIG. 1 is a side view of a truck 1 embodying the present invention, in which a front tire 3 and a rear tire 4 provided on a vehicle body 2 are each provided with a tire air filling member 5.6.

FIG. 2 is a circuit diagram of an air filling device, in which air compressed by a compressor 8 driven by an engine 7 is transferred to a pipe 9.
It is configured to supply the fuel to the front tires 3 and rear tires 4 via. A pressure regulator IO is provided in front of the pipe 9 connected to the tire, and is operated by a control knob 11 in the driver's seat to set the pressure to an arbitrary value.

FIG. 3 is a sectional view showing the main parts of the front wheel, and shows the rim 1.
A mounting plate 17 having a rotary joint 16 for connecting the pipe 9 and the air supply port of the tire is attached to the side surface of the tire.

As shown in FIG. 4, the details of the rotary joint 16 include a ring body 18 fixed to the center of a disc-shaped mounting plate 17, and a rotatable joint mounted inside a hole provided in the center of the ring body 18. A groove 20 is provided in the center of the inner surface of the ring body 18, and grooves 21, 21 are provided on both sides of the groove 20, and an O-ring 22 is inserted into the inner surface of the ring body 18. Insert and seal.

A flexible pipe 9a whose one end is connected to the pipe 9 is connected to the connecting body 19, and a relatively soft metal pipe 9b (for example, a steel pipe or an aluminum pipe) is connected to the ring body 19. is connected to the tire's air supply.

The tire air filling member 5 connected to the front tire 3 is a fifth tire air filling member 5 connected to the front tire 3.
As shown in the figure, links 5a and 5b are connected by a pin 5c, a fixing member 5e is swingably supported by a shaft 5d on the link 5a, and the shaft is inserted into a hole 5f provided in the fixing member 5e. The air filling member 5 is configured to be able to rotate, and the connecting body 1 is connected to the link 5b via a shaft 5g.
9 is swingably supported, and the connecting body 19 is assembled to a ring body 18 fixed to a mounting plate 17. This structure allows the air supply path to follow when steering the front wheels.

To explain an example in which the rear tires 4 are two sets, the tire air filling member 6 is attached to the support body 6 as shown in FIGS. 7 and 8.
a and 6b are connected by a pin 6C, and a rotary joint 16.1 is inserted into the elongated hole 6d provided in each of the supports 6a and 6b.
6 is inserted so that it can be slid back and forth.

Note that the ring body 18 of this rotary joint 16 is fixed to the mounting plate 17a as in the case of FIG. 4 above. Furthermore, a flexible tube 9C connected to the piping 9 is connected to the connection body 19 of each rotary joint 16.16, so that even if the rear wheel moves relative to the vehicle body, it can follow this. It is configured as follows. Although not shown, the ring body 18 and the air intake port of the rear tire 4 are connected by a pipe.

Further, the mounting plate 17a is bolted to a hub camp 27 of a hub 26 provided at the end of the rear axle 25, as shown in FIG.

The air filling member 5 of the front tire 3 is constituted by a link mechanism as shown in FIG. The air pressure of the front tire 3 can be adjusted while moving up and down.

The rear tires 4 are arranged in two rows as shown in Fig. 1.
When the front and rear tires 4 move up and down relative to each other, the rotary joint 1
The distance between the rotary joints 16.16 and 6.16 fluctuates, but the variation in this distance is due to the fact that the rotary joints 16.16
is absorbed by sliding back and forth.

In addition, the front and rear tires 4 move up and down relative to each other,
This movement is performed by connecting the supports 6a, 6b with the bottle 6c, so the supports 6a, 6b move around the bottle 60.
can be absorbed by rotating.

〔Effect of the invention〕

A vehicle according to the present invention is configured such that a compressed air supply device mounted on a vehicle body and a tire are connected through an adjustment device so that the air pressure of the tire can be adjusted.

Therefore, by operating the control knob provided on the driver's seat, the tire air pressure can be adjusted even while driving.

In particular, the present invention is effective when the vehicle travels in places where the road surface conditions change significantly, such as when a vehicle travels between an urban area and a desert area.

Furthermore, it can be effectively applied to large trucks whose loaded weight varies significantly.

It should be noted that the present invention can of course be applied to a new car, but it is sufficient to attach additional parts to a general standard specification car, and there is no need to prepare a special car with a special mechanism.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of a truck, FIG. 2 is a diagram showing piping between a compressor and a tire, and FIG. 3 is a diagram showing main parts of a front wheel portion. 4 is a sectional view of the rotary joint provided in the front wheel, FIG. 5 is a perspective view of the air filling member for the front tire, FIG. 6 is a sectional view showing the main parts of the rear wheel, and FIG. 7 is a sectional view of the rotary joint provided in the front wheel. A perspective view of the air filling member of the rear tire, and FIG. 8 is a side view of the same. ■...Trunk, 2...Vehicle body, 3...Front tire,
4... Rear tire, 5.6... Tire air filling member,
6a, 6b...Support, 6c...Pin, 7...Engine, 8...Compressor, 9...Piping, lO.
...Pressure regulator, 11...Control knob, 15
... Rim, 16... Rotating joint, 17... Mounting plate,
18... Ring body, 19... Connection body, 25... Rear axle, 26... Hub, 27... Hub cap.

Claims (2)

[Claims] (1) A vehicle that connects a compressed air supply device mounted on the vehicle body and the tires via an adjustment device so that the air pressure of the tires can be adjusted. (2) The vehicle according to claim 1, wherein the compressed air supply device mounted on the vehicle body and the tires are connected through an adjustment device, so that the tire air pressure can be adjusted from the driver's seat.