JPS63287646A - Braking device for automobile - Google Patents

Abstract

PURPOSE:To prevent an automobile accident caused by slippage by mixing magnetic powder into a tire while laying a magnetic board on the specified place of a road face. CONSTITUTION:Magnetic powder is mixed into a tire 11 while electromagnets 12 are radially provided in the tire 11. On the other hand, a magnetic board 20 is laid on a road face in the stop-line position of a crossing, etc. As a driver applies brakes at the crossing throwing in the switch of the electromagnets 12, a magnetic force is generated in the electromagnets 12 and acts in the outer peripheral direction of the tire. And, when the tire arrives at the magnetic board 20 on the road face, strong attraction due to magnetism is generated between the tire 11 and the magnetic board 20, to stop a wheel 10. Thus, since the tire is attracted to the magnetic board on the road face when an automobile comes to a stop, the automobile can be stopped without causing slippage even if a road face is slippery being wet with rain, and the like.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention involves mixing magnetic powder into tires of automobile wheels,
This invention relates to an automatic braking device that uses magnetic attraction to apply braking.

[Prior Art 1] Ordinary automobiles are equipped with hydraulically operated drum brakes or disc brakes, and such braking devices apply brakes to the wheels to stop the automobile.

[Problem to be interpreted by the invention] However, the road surface was wet from rain and icy.

If the brake system described above applies strong braking to the wheels, the friction between the wheels' tires and the road surface will rapidly decrease, causing the tires to slip, causing the car to be unable to stop and causing an accident. There was a problem that caused it.

The present invention has been made in consideration of the above points, and provides a braking device for an automobile that can apply braking to an automobile while preventing wheel slippage, and is constructed as follows.

[Means for Solving the Problems] That is, in the braking device of the first aspect of the present invention, magnetic powder is mixed into the tire of the wheel, a stone is placed inside the tire, and a magnet is placed at a specific location on the road surface. A magnetic plate is embedded, and when the wheel reaches a specific point, it is configured to apply braking force to the wheel by the attraction action of the electromagnet.

In addition, in the braking device of the second invention, magnetic powder is mixed in the tie puller 7 of the wheel, and an electromagnet is buried in a specific location on the road surface, and when the wheel reaches the specific location, the braking force is applied to the wheel by the adsorption action of the electromagnet. It is configured to multiply.

[Function] When stopping a car at a specific point on the road, a braking device configured as described above operates in addition to the normal braking device operation.
Electromagnets buried within the tire or on the road surface are energized to create an adsorption effect. The adsorption effect of the electromagnet attracts the tires to the road surface, preventing slippage between the tires and the road surface and stopping the vehicle at a specific location even when the road surface is wet with rain or frozen.

[Example] Embodiments of the present invention will be described below based on the drawings.

1 and 2 show an embodiment of the first invention, in which a tire 11 of a wheel 10 of an automobile is mixed with magnetic powder such as iron powder. Further, within the tire 11, a plurality of electromagnets 12 are arranged radially at appropriate intervals with the outer periphery facing. The coils of the electromagnet 512 are respectively connected to the current collecting brushes 14 provided in the wheel 19, and the current collecting brushes 14 in the wheel 19 contact the slip ring 15 provided on the 7 flange portion 17 of the axle 18, and is connected to the power line on the vehicle body side. Therefore, when the switch installed in the driver's seat is turned on, current flows through the slip ring 15.
The coil of the electromagnet 12 inside the tire 11 is energized via the current collecting brush 14, and the electromagnet 12 generates magnetic force.

On the other hand, a magnetic plate 20 (for example, a steel plate) having a sufficient thickness and area is buried on the road surface at a stop position of a car on a road, for example, at a stop line position such as an intersection.

In the automobile braking system configured as described above, when the driver stops at a stop line such as at an intersection, the driver depresses the brake pedal to activate the normal brake system to decelerate and stop the wheels 10, and at the same time, the driver depresses the brake pedal to activate the normal brake system to decelerate and stop the wheels 10. Throw in the switch for 1 stone and 12. Then, the coil of the electric current 1M'512 provided inside the tire 11 is energized through the slip ring 15 and the current collecting brush 14, and the electromagnet 12 generates a strong magnetic force. This magnetic force effectively acts in the outer circumferential direction of the tire 11 due to the effect of the magnetic powder mixed in the tire 11, and when the tire 11 reaches the magnetic plate 17 buried at the stop line position, the tire 11 and the magnetic plate A strong magnetic attraction force is generated in question 17, and the wheels 10, that is, the car, stop so that the tires 11 are attracted to the magnetic plate 17. In this way, when the car is stopped, the tires 11 act to be attracted to the magnetic plates 17 on the road surface, so even if the road surface is wet from rain or frozen and extremely slippery, , it is possible to reliably stop the car on the stop line without causing it to slip.

FIG. 3 shows an embodiment of the second invention. Magnetic powder such as iron powder is mixed into the tires 26 of the wheels 25 of this automobile, so that the attraction force of the laminated stone acts on the tires 26.

On the other hand, an electromagnet 27 is buried in the road at a stop position of a car on the road, for example, at a stop line position such as an intersection. This electromagnet 27 has a coil 27 in the middle part of the core 27a.
The coil 27b has a structure in which a coil 27a is wound around the coil 27a, and when a current is passed through the coil 27b, the direction of generation of magnetic lines of force is approximately perpendicular to the road surface, and a strong magnet is generated above the core 27a, that is, on the road surface. arranged to occur. Also, electromagnet 2
7 is housed in a non-magnetic case 28 and buried, and a non-magnetic protection plate 29 is provided on top of the electromagnet 27 to protect the electromagnet. .

The electromagnet 27 buried at the stop line position of the passageway is connected to a power supply circuit that is energized at the same time as the red stop signal lights up if a traffic light is installed at that location.

Then, when a car with wheels 25 with tires 26 mixed with magnetic powder approaches an intersection where electromagnets 27 are buried and the traffic light turns red, the driver presses the brake pedal to stop the car at the stop line. The driver decelerates the wheel 25 by activating a normal brake device. On the other hand, the electromagnet 27 buried at the stop line position on the road is energized at the same time the traffic light turns red, and a strong magnetic force is generated above the electromagnet 27. Therefore, when the wheels 25 of a car moving while decelerating reach the stop line, that is, the electromagnet, the tires 26 are strongly absorbed by the magnetism of the electromagnet 27, and the wheels, that is, the car, are attracted to the stop line. Stop at.

In this way, when the car is stopped, the magnetic force acts on the tires 2.
6 is adsorbed onto the road surface, so even if the road surface is very slippery due to rain or ice, the vehicle can be reliably stopped on the stop line without slipping.

[Effects of the Invention] As explained above, according to the braking device for a vehicle of the present invention, magnetic powder is mixed into the tires of the wheels, and the tires are magnetically attracted to specific points on the road surface to apply braking to the wheels. It was configured as follows. Therefore, even if the road surface is wet, frozen, and slippery, the vehicle can be reliably stopped at a specific location, such as at a stop line at an intersection, with almost no slippage between the tires and the road surface. is possible,
Accidents caused by slips can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of an embodiment of the first invention, FIG. 2 is a cross-sectional view of a wheel thereof, and FIG. 3 is a partial cross-sectional view of an embodiment of the second invention.

Claims (1)

[Claims] 1. Magnetic powder is mixed into the tire of a wheel, an electromagnet is arranged inside the tire, a magnetic plate is buried in a specific location on the road surface, and when the wheel reaches the specific location, the A braking device for an automobile that is characterized by applying braking force to wheels through the adsorption action of an electromagnet. 2. An automobile characterized in that magnetic powder is mixed in the tires of the wheels, electromagnets are buried in specific locations on the road surface, and when the wheels reach the specific locations, braking force is applied to the wheels by the adsorption action of the electromagnets. Braking device.