JPS6146700U - Flashing traffic safety facility - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a side view showing the relationship between the running vehicle and the luminous studs;
FIG. 2 is a graph showing changes in illuminance due to vehicle speed and a time chart showing the correspondence between the count number of clock pulses and the flashing period, and FIG. 3 is a circuit diagram of the embodiment. Z...Vehicle, PH...Photoelectric resistance, S,, S2...
Schmitt circuit, IC1...counter, VCF...
Voltage controlled oscillator, ta to td...rise time.

Claims (1)

[Scope of claim for utility model registration] ■ A sensor that detects vehicle speed, a drive circuit that is controlled by the output signal of the sensor and whose blinking frequency increases or decreases depending on the vehicle speed, and a blinker connected to the drive circuit. A flashing traffic safety facility equipped with an indicator light. ■ A utility model registration request characterized in that the sensor for detecting vehicle speed is equipped with a photoelectric element illuminated by a vehicle headlight and a circuit that detects the length of rise time of the output level of the photoelectric element. Flashing traffic safety facilities as described in Scope 1. ■ As a circuit for detecting the length of the rise time of the output level of a photoelectric element, a clock pulse generation circuit is used, and when the output level reaches a first level, it starts counting clock pulses, and a second higher level and a counter that stops counting the Crozug pulses when the level reaches the level of .
Flashing traffic safety facility as described in section.