JPH01141136A - Emergency brake flasher - Google Patents

Abstract

PURPOSE:To give a succeeding car previous notice that it is at the time of emergency braking and thereby obviate any accident of a rear-end collision or the like by turning on a pressure switch installed in a hydraulic braking device at the time of emergency braking, and switching a brake lamp on and off via a flashing relay or the like. CONSTITUTION:At the time of normal braking of a brake pedal P, since hydraulic pressure in a master cylinder 2 connected to a brake oil tank 1 is less than the setting value, a pressure switch 4 will not be turned to ON. Consequently, each wheel is properly controlled via each brake pipeline 3 and simultaneously each brake lamp is continuously lighted. On the other hand, at the time of sudden braking, the pressure switch 4 is turned to ON in proportion as the hydraulic pressure in the master cylinder 2 goes up beyond the setting value. Accordingly, a flashing relay 6 is turned to ON via a timer 5, thereby turning each brake lamp on and off via each wiring 7. With this constitution, a face that it is at the time of emergency braking is informable to a succeeding car so that any accident of a rear-end collision or the like can be obviated.

Description

[Detailed Description of the Invention] 3. The present invention relates to an emergency brake flashing light provided at the rear of a vehicle for the purpose of preventing rear-end collisions. The prior art related to the present invention is disclosed in Japanese Patent Publication No. 59-14373.
According to research in Section 2, there is a publication in which the scope of the claim consists of a vehicle deceleration detection device, a depression acceleration detection device, and an emergency brake pedal alarm device. Brake lights currently installed on vehicles turn on when the brake pedal is pressed, regardless of whether the brakes are sudden or gentle. In other words, the brake lights will turn on in the same way whether you press the brake pedal a little or hard. There have also been cases where rear-end collisions have occurred because the driver stepped on the brakes one-tenth of a second later. This allows you to visually determine whether the following vehicle is braking slowly or suddenly.
There was a demand for a car with a similar structure, but it was not realized.

When explaining the structure of the invention based on the drawings, Figure 1 shows the automatic [
A perspective view of the brake system of li, the second figure is a side view of the mask cylinder with a pressure switch, timer, flashing relay, and the third figure is a pressure switch in the brake piping.
The operation will be explained using the second figure of the above embodiment, which is a side view of the mask cylinder in which the timer and blinking relay are arranged.When the car is under normal braking, which does not require sudden braking, the pressure inside the mask cylinder is set. When the pressure switch is 4 or lower, when the vehicle's brake pedal is depressed, the brake light is turned on and the hydraulic pressure in the brake system increases, and the wheels are braked to decelerate and come to a stop. On the other hand, if you press the brake pedal hard during sudden braking, the brake light will come on and the mask cylinder will turn on.
Pressure changes as oral pressure increases.

When the pressure reaches the set pressure value of switch 4, a timer 5 for turning on the pressure switch 4 is activated, and a red emergency brake flashing light installed at the rear of the vehicle is activated from a flashing relay 6 to a wiring 7. When the pressure in the brake system drops below the set pressure, the pressure switch 4 is turned off, the timer 5 is turned off, the flashing light is turned off, the emergency brake flashing light is turned off, and when the brake pedal is released, the brake light is turned off. In the embodiment, two examples are shown in FIGS. 2 and 3, both of which have a structure in which the internal pressure of the brake system of the vehicle abnormally increases and the system is activated when sudden braking is applied. With conventional brake lights, following vehicles could not judge the braking situation of the vehicle in front.
By installing the emergency brake flashing light of the present invention, it is possible to determine the abnormal situation of the vehicle in front, and it is possible to quickly shift to deceleration, thereby maintaining the inter-vehicle distance necessary for safe driving. When applying the brakes, conventional brake lights and emergency brake flashing lights are displayed, making it clear that there is an abnormal situation with the vehicle in front of you.In tests on expressways, etc., it can be seen even from 300 meters behind, reducing rear-end collisions. This is expected to be effective.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an automobile's brake system. Figure 2 is a side view of an example of a mask cylinder. Figure 3 is a side view of an example of brake piping. 2: Master cylinder - 3 - Brake piping 4:
Pressure switch 5: Time timer 6: Flashing relay
7: Wiring 8: Emergency brake flashing light

Claims (1)

[Claims] A pressure switch is screwed onto the vehicle's hydraulic brake system,
A timer flashing relay is installed near the pressure switch.
Emergency brake flashing light installed at the rear of the vehicle from wiring 7.