JP2568955B2 - Emergency braking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency braking device which is effective as a braking device for an icy road and which stops a traveling vehicle body urgently.

[0002]

2. Description of the Related Art
When stopping the running vehicle body in an emergency, it is only dangerous to apply the brakes to the normal wheels and only lock the wheels. Therefore, the braking force is weak and the vehicle body slides extremely dangerously.

[0003] In particular, when the road surface is wet or frozen, the force with which the wheels grip the road surface is extremely reduced, and a desired braking force cannot be obtained. When the vehicle feels the danger of slipping or rotating, the brakes are depressed more strongly, which further invites danger.

[0004] This means that when a film of water is continuously generated on the road surface due to rain, when there is a slight amount of snow, or when the road surface is frozen, the friction between the wheels and the road surface is close to zero. And the braking force from the brakes is almost gone,
It will cause a major accident.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides an emergency braking device capable of accurately and safely braking a traveling vehicle body to cause an abrupt stop.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

A grounding brake body 2 which can be in contact with the ground through a link mechanism formed by a link 8 is provided below the traveling vehicle body 1 so as to protrude therefrom, and the grounding brake body 2 is always provided along the lower surface of the traveling vehicle body 1. Elastic body with restoring force that can be positioned
The airbag body 6 is interposed between the traveling vehicle body 1 and the grounding brake body 2 and presses the grounding brake body 2 to protrude downward when inflated between the grounding brake body 2 and the lower surface of the traveling vehicle body 1. When the switch device 17 or the steering brake 3 provided in the vehicle is urgently operated, the airbag body 6 is inflated and the ground brake body 2 is inflated.
The present invention relates to an emergency braking device characterized in that a brake projecting mechanism a that instantaneously projects downward is provided in the traveling vehicle body 1.

[0008]

When the switch device 17 or the control brake 3 is actuated urgently, the brake projecting mechanism a is instantaneously actuated to inflate the airbag body 6 attached to the lower side of the traveling vehicle body 1 to lower the ground brake body 2 downward. The ground brake body 2 comes into pressure contact with the road surface 15, so that the traveling vehicle body 1 is suddenly stopped without causing a dangerous sliding state or a skidding state in conjunction with the braking of the vehicle body 16.

When the switch device 17 and the control brake 3 are released, the airbag body 6 contracts, and the grounding brake body 2 is brought into a state of being provided along the lower surface of the traveling vehicle body 1 via the link mechanism by the return force of the elastic body 11. Therefore, the vehicle can run again in a normal state.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings illustrate a preferred embodiment of the present invention and will be described below.

An attachment portion 4 for a grounding brake 2 is provided below the traveling body 1 of the automobile, and a brake body 2 having a frictional resistor 5 attached to the lower surface below the traveling body 1 via a brake projecting mechanism a. To protrude freely.

An example of the brake projection mechanism a will be described.
An airbag body 6 is provided between the upper surface of the brake body 2 and the lower surface of the traveling vehicle body 1, and a link 8 is provided between the mounting portion 4 and a mounting portion 7 provided on the upper surface of the brake body 2. A locking piece 9 is provided behind the upper surface of the brake body 2, an elastic body 11 is provided between the locking piece 9 and a locking portion 10 behind the lower surface of the running vehicle 1, and the airbag body 6 provided to the brake body 2 is provided. It is arranged in a folded state on the lower surface of the traveling vehicle body 1.

In this case, when the switch device 17 installed in the automobile is actuated urgently or the control brake 3 is depressed more strongly than usual, the airbag body 6 instantaneously responds to this movement. Inflated as shown in FIG. 2,
The friction mechanism 5 of the brake body 2 is pressed against the road surface 15 by the link mechanism of the link 8, and braking is applied to the vehicle body 16. At the same time, the traveling vehicle body 1 is suddenly stopped by the friction between the lower surface of the friction resistor 5 and the road surface 15. . When the switch device 17 and the control brake 3 are released, the airbag body 6 contracts, and the brake body 2 is restored to the lower surface of the traveling vehicle body 1 via the link mechanism by the restoring force of the elastic body 11, so that the vehicle can travel again in a normal state. .

As for this restoration structure, if a structure for automatically restoring is adopted, the structure becomes complicated and the cost may increase. Therefore, the structure is designed so that the driver can restore the original state when used. It may be designed to be replaced with a new one each time.

FIG. 3 shows another embodiment of the present invention, in which the brake body 2 is arranged by a connecting rod 12 so as to operate in a sliding state with a mounting portion 13 on the lower surface of the traveling vehicle body 1 as an axis. As a result, the expansion of the airbag body 6 causes the brake body 2 to rotate downward about the mounting portion 13 as an axis, and the lower surface of the frictional resistor 5 of the brake body 2 is pressed against the road surface 15 to brake the traveling vehicle body 1.

As the frictional resistor 5, a lower road surface 15 is used.
Such as attaching a tire chain-shaped thing to the contact surface with the stud for spiked tires,
It is possible to form a rubber compact similar to a studless tire and a tire having a tread pattern similar to a snow tire, or to use a frictional resistor 5 according to the season.

Further, it is desirable to install a seat belt pretensioner for a passenger seat for safety on the traveling vehicle body 1 on which the present apparatus is installed.

[0018]

Since the present invention is constructed as described above, when a switch device or a brake is actuated urgently due to a sense of danger, the brake body projects to the lower surface of the vehicle body at the same time as the wheel braking, and the brake body and the road surface Since the running body can be suddenly stopped by the frictional resistor, when the sudden braking is applied on a wet road or a frozen road in snowy place, there is a danger that the running body will slip or roll due to wheel slip. In addition, since an elastic body is provided that always positions the ground brake body on the lower surface of the traveling vehicle body, the airbag body shrinks when the switch device or steering brake is released, and the elastic body returns. Since the ground brake body is placed along the lower surface of the traveling vehicle body by the force, it is an excellent emergency braking device that can immediately travel again in a normal state.
In addition, the airbag system inflates the airbag body and instantly projects the grounding brake body downward, so that the grounding brake body can be realized with a simple configuration. Since the body is pressed against the road surface, the ground brake body has extremely high pressing strength against large sliding friction resistance in the running direction, and it is an excellent emergency braking device that can surely stop the running vehicle body suddenly. .

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a main part of a traveling vehicle body of the present invention when traveling.

FIG. 2 is a side view showing an operation of a main part at the time of operation of the present invention.

FIG. 3 is a side view showing a configuration of a main part of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running vehicle body 2 Grounding brake body 3 Operating brake 6 Airbag body 8 Link 11 Elastic body 17 Switch device a Brake projection mechanism

Claims (1)

(57) [Claims] 1. A grounding brake body which can come into contact with the ground via a link mechanism provided by a link is protrudably provided below the traveling vehicle body, and the grounding brake body can always be positioned along the lower surface of the traveling vehicle body. An airbag body that has an elastic body having a restoring force interposed between the traveling vehicle body and the grounding brake body and presses the grounding brake body to protrude downward when inflated between the grounding brake body and the lower surface of the traveling vehicle body. When the switch device or the control brake provided inside the vehicle is urgently operated, the brake device that expands the airbag body and instantly projects the ground brake body downward is provided on the traveling vehicle body. An emergency braking device, characterized in that: