JPH0672768U - Emergency braking system for vehicles - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to an emergency braking device for a vehicle,
The purpose is to function as an emergency brake in an emergency, and to absorb the rear impact of a following vehicle in a non-emergency situation. A rotating lever having one end pivotally attached to a rear portion of a frame, and an impact absorbing / brake lining member provided at the other end of the rotating lever and located at a bumper position near a lower portion of the rear end of the frame in a non-emergency state. An actuator mounted on the frame for rotating the shock absorbing / brake lining member, and a control means for giving an operation command to the actuator so that the shock absorbing / brake lining member moves to a brake position where the shock absorbing / brake lining member comes into contact with the road surface in an emergency. Is equipped with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an emergency braking device for a vehicle, and more particularly, to an emergency braking device for a vehicle that functions as a shock absorbing device when a shock is applied from the rear in a non-emergency situation such as during normal driving and as a brake in an emergency. .

[0002]

[Prior art]

 Generally, vehicles use a regular brake device for speed control and stop, but auxiliary brakes such as side brakes, exhaust brakes and retarders are used as needed to supplement the regular brake device. Has been done.

On the other hand, as shown in FIG. 3, a bumper 103 is attached to a rear end portion 101 A of a vehicle frame 101 via a supporting member 102, and the bumper 103 is located below the rear end portion 101 A of the frame 101. Is located in. In order to ensure the shock absorption in such a structure when a shock is received, Japanese Utility Model Laid-Open No. 4-115963 discloses the content of a mechanism that absorbs the shock when a following vehicle collides with an oil buffer provided on a bumper. ing.

[0004]

[Problems to be solved by the device]

 However, in the case of an emergency, the above-mentioned service brake device and auxiliary brake are required to have stronger braking force, and only those braking functions are problematic, and they have a shock absorbing function such as a bumper. Absent.

On the other hand, although there is a bumper having a structure that absorbs impact as described above, it is used only for its function and does not have a braking function. The present invention has been made to solve the above-mentioned problems, and the purpose thereof is to function as an emergency brake in an emergency and to absorb a rear impact from a following vehicle in a non-emergency situation. It is to provide an emergency braking device for vehicles.

[0006]

[Means for Solving the Problems]

 The present invention is a shock absorbing and brake lining that has a rotating lever whose one end is pivotally attached to the rear part of the frame, and is located at the other end of the rotating lever and is located at the bumper position near the lower end of the rear end of the frame in an emergency. Member, an actuator that is mounted on the frame to rotate the shock absorbing and brake lining member, and in the event of an emergency, the actuator is instructed to move to the brake position where the shock absorbing and brake lining member comes into contact with the road surface. And a control means for giving.

[0007]

[Action]

 In the present invention, the shock absorbing / brake lining member functions as a shock absorbing member at a bumper position near the lower end of the rear end portion of the frame in a non-emergency state, for example, during normal running or stopping.

Further, in case of emergency, the control means gives a command to the actuator, and the actuator absorbs the shock absorbing and brake lining member to rotate to the brake position. The shock absorbing and brake lining member at this braking position contacts the road surface and functions as an emergency brake.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show an emergency braking device for a vehicle according to an embodiment of the present invention.

In the figure, reference numeral 1 is a frame of a vehicle including a truck T, and one end 2A of a rotating lever 2 is pivotally attached to a rear portion of the frame 1. The other end 2B of the rotating lever 2 is provided with a shock absorbing / brake lining member 3 via a horizontal holding mechanism. The shock absorbing / brake lining member 3 is located on a bumper near the rear end 1A of the frame 1 in a non-emergency state. The above-mentioned horizontal holding mechanism is for holding the shock absorbing and brake lining member 3 in a horizontal state even when the turning lever 2 selects the bumper position or the brake position described later. The gear device or the like is caused to function in association with the rotation, and the shock absorbing and brake lining member 3 is rotated relative to the rotating lever 2 by the gear device or the like.

The shock absorbing / brake lining member 3 is composed of a plate member 3A and a brake lining 3B attached to the lower surface of the plate member 3A. One end 4A of an actuator 4 formed of an air cylinder is axially attached to the rear end 1A of the frame 1, and the other end 4B of the actuator 4 is pin-connected to a middle portion of the rotary lever 2.

One end of an air tube 5 is connected to the actuator 4, and an air tank 6 is connected to the other end of the air tube 5. An electromagnetic valve 7 is mounted in the middle of the air tube 5.

On the other hand, an abnormality detection switch 9 is provided below the tip of the brake pedal 8. The abnormality detection switch 9 is off during normal brake pedal depression (deceleration or stop), It is designed to be turned on at the time of maximum emergency step.

The abnormality detection switch 9 is connected to the solenoid valve 7 via a wiring 10. The abnormality detection switch 9, the wiring 10, the solenoid valve 7, the air tube 5, the air tank 6 and the like serve as a control means 11. The control means 11 gives an operation command to the actuator 4 to move the shock absorbing / brake lining member 3 to the brake position where it comes into contact with the road surface 12 in an emergency.

However, in the present embodiment, in a non-emergency state, for example, during normal traveling or stopping, when emergency braking is not applied or the brake operates normally, shock absorption is performed. In the state shown by the chain double-dashed line in FIG. 1, the combined brake lining member 3 is located at the bumper position near the lower rear end of the frame 1 and functions as a shock absorbing member. That is, when a following vehicle or the like collides with the shock absorbing / brake lining member 3, the rotary lever 2 rotates and the actuator 4 absorbs the shock.

In an emergency, for example, during emergency braking, when the brake function is impaired due to a fade phenomenon even when the service brake is operated, or when it is desired to assist the engine brake, the brake pedal is used. When the user depresses 8 to the maximum, the abnormality detection switch 9 is turned on, the control means 11 issues a command to the actuator 4, and the actuator 4 rotates the shock absorbing / brake lining member 3 to cause the actuator 4 to rotate. The brake position is as shown in (shown by the solid line). The shock absorbing and brake lining member 3 at this braking position comes into contact with the road surface 12, functions as an emergency brake, and is used as an auxiliary means of the service brake.

According to the configuration as described above, in an emergency, the shock absorbing / brake lining member 3 is moved to the braking position to expand the function as a brake having a strong braking force, and in a non-emergency state, the shock absorbing / brake lining member 3 is expanded. Can be positioned near the lower end of the rear end of the frame 1 to function as a bumper capable of absorbing a rear impact of a following vehicle or the like.

In this embodiment, the control means is composed of the abnormality detection switch 9, the wiring 10, the electromagnetic valve 7, the air tube 5, the air tank 6, etc., but is not limited to this, and for example, Alternatively, a microcomputer can be used.

Further, in the present embodiment, the detection of an emergency is performed by the abnormality detection switch 9, but the present invention is not limited to this. For example, a deceleration sensor is attached to the truck T, and thus the emergency is detected. It is also possible to detect braking as deceleration and actuate the actuator based on the signal.

Further, in the present embodiment, the truck T is described as an example of the vehicle, but the vehicle is not limited to this and can be applied to, for example, a trailer.

[0021]

[Effect of device]

 As described above, according to the present invention, in an emergency, the shock absorbing / brake lining member is moved to the brake position to expand the function as a brake having a strong braking force, and in a non-emergency state, the shock absorbing / brake lining member is used. By being positioned at the bumper position near the lower end of the rear end of the frame, it is possible to function as a bumper capable of absorbing a rear impact of a following vehicle or the like.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which an emergency braking device for a vehicle according to an embodiment of the present invention is attached to a frame.

FIG. 2 is a configuration diagram of an emergency braking device for the vehicle.

FIG. 3 is a side view showing a state in which a bumper is attached to a frame of a conventional vehicle.

[Explanation of symbols]

 1 Frame 1A Rear End 2 Rotating Lever 2A One End 2B Other End 3 Impact Absorption and Brake Lining Member 4 Actuator 11 Control Means 12 Road Surface

Claims (1)

[Scope of utility model registration request] 1. A rotating lever having one end pivotally attached to a rear portion of a frame, and an impact absorbing / brake provided at the other end of the rotating lever and located at a bumper position near a lower end of the rear end of the frame in a non-emergency state. A lining member, an actuator that is mounted on the frame to rotate the shock absorbing and brake lining member, and a control that gives an operation command to the actuator so that the shock absorbing and brake lining member moves to the brake position where it comes into contact with the road surface in an emergency. An emergency braking device for a vehicle, comprising: