DE10247805A1 - Flashing stop light for motor vehicle has coil spring constant and mass of metal core matched so contact between core and switch contacts is made under emergency braking - Google Patents

Abstract

The device has a metal core (2) arranged in an inertia switch (1) to move in the vehicle longitudinal axis direction. The core is positioned in a rest position by a contact spring (3) and a coil spring (4) and has a movable contact surface (5). The inertia switch has a fixed contact surface (6). The coil spring constant and the mass of the metal core are matched so that contact between the core and switch contacts is made under emergency braking.

Description

The The invention relates to a flashing stop light. The invention is used in motor vehicles and serves for additional Warning of the following traffic, if particularly braked becomes.

The Invention is based on that by timely informing and warning road users who are at risk As accident, congestion or other accident approach, further damage to the can be avoided. In particular, is suitable the invention for subsequent Installation in existing vehicles.

at The prevailing traffic density today is unfortunately accidents on the agenda. Heavy accidents happen again and again on the highways. The causes of accidents are diverse and should not be discussed further here become. In these accidents Road users are injured or even killed. The resulting property damage is considerable. After the accident the injured persons have to be accommodated and cared for and the accident site must be cleared become.

Unfortunately it happens again and again that in an already existing accident or danger point more Retract vehicles at high speed and thus the accident damage considerably increase. Often not only the road users of the original are Accident in addition affected, but also hurried to salvage and evacuation to the accident site Helpers are in danger.

The Cause for many accidents is to be seen in that one suddenly Emergencies such as, traffic jam and accident not in sufficient Dimensions the following road users can be transmitted.

The common Practice to warn of subsequent traffic in an accident, in the event of a traffic jam or in the event of a breakdown, it is necessary to switch on the hazard warning lights. However, the hazard warning lights are often only then by the driver turned on after he has braked hard and realizes that it is is a danger point. In many situations, though, then the time at which the hazard warning lights are turned on, for the subsequent Traffic too late.

Of the Invention is based on the object, the following traffic additionally to warn if a dangerous situation exists or exists. Is to to make a flashing stop light, which in heavy braking automatic takes effect ..

According to the invention Task by a flashing stop light on the motor vehicle accordingly following description.

Centerpiece of the flashing Stoplight is an inertial switch. This contains one in the vehicle's longitudinal axis movable metal core, by a contact spring and a compression spring is positioned in its rest position. The metal core has at its in the direction of travel front side a movable contact surface and the housing of the inertia switch has the movable contact surface against a solid contact surface. The Spring constant of the compression spring and the mass of the metal core are coordinated so that when an emergency braking the movable contact area of the metal core slides on the fixed contact surface and thus a contact is closed. That in an emergency braking is by the law of inertia the inertia switch closed. However, this requires that the contact spring conductive and their spring constant is such that when the contact is closed of contact surface of the metal core and solid contact surface continue to conduct Connection between contact spring and metal core exists.

Of the inertia switch is connected between the plus pole of the on-board voltage and a flashing module, which generates the required flashing voltage from the on-board voltage. This flashing voltage is switched to the stop light, which in case of danger then z. 10 to 15 times with a frequency of about 3 to 5 Hz flashes.

The Invention will be explained in more detail in the embodiment.

1 shows a device according to the invention

The flashing stop light consists of the inertia switch 1 , the flashing module 8th and the traffic light 9 , The inertia switch 1 is mounted in the vehicle so that the metal core 2 can move in the vehicle's longitudinal axis. During normal driving, the metal core becomes 2 through the contact spring 3 and the compression spring 4 positioned in a neutral rest position. During emergency braking, the metal core glides 2 Forward. The spring constant of the compression spring 4 and the mass of the metal core 2 are coordinated so that there is a conductive connection between mobile 5 and solid contact surface 6 is produced. By the adjusting device 7 can be fine tuned become. Because the contact spring 3 the contact between on-board voltage and metal core 2 produces, the on-board voltage becomes a solid contact surface 6 connected through. About the flashing module 8th the stop light is supplied with the flashing frequency. It can be controlled, for example, the middle or an additional indicator.

Advantageously, the flashing stop light according to the invention can be used for retrofitting to motor vehicles. In this case, the flashing module is additionally connected to the stop light switch of the motor vehicle. During normal braking, the signal from the stop light switch is given by the flashing module 8th to stop lamp 9 passed through. In case of danger the inertial switch 1 activated, the flashing module comes into operation and at the same time the connection from the stop light switch on the flashing module 8th to the traffic light 9 interrupted. The traffic light 9 now only via the flashing module 8th fed. After completion of the flashing signal, the flashing module switches again the connection of the stoplight switch - stop light.

1

inertia switch

2

Portable metal core

3

contact spring

4

compression spring

5

portable contact area

6

firm contact area

7

adjusting

8th

Blink module

9

Lamp, stoplight

Claims (5)

Flashing stop light on motor vehicle, characterized in that in the inertia switch ( 1 ) of the vehicle longitudinal axis movable metal core ( 2 ) is arranged that the metal core ( 2 ) by the contact spring ( 3 ) and the compression spring ( 4 ) is positioned in a rest position that the metal core ( 2 ) a movable contact surface ( 5 ) and the inertia switch ( 1 ) a solid contact surface ( 6 ) and that the spring constants of the compression spring ( 4 ) and the mass of the metal core ( 2 ) are coordinated with one another in such a way that, in the case of emergency braking, the contact of contact surface of the metal core ( 5 ) and solid contact surface ( 6 ) is closed. Flashing stop light on the motor vehicle according to claim 1, characterized in that the contact spring ( 3 ) is conductive and its spring constant is dimensioned such that in an emergency braking, ie with closed contact of contact surface of the metal core ( 5 ) and solid contact surface ( 6 ), a conductive connection between contact spring ( 3 ) and metal core ( 2 ) consists. Flashing stop light on motor vehicle according to claim 2, characterized in that the inertia switch ( 1 ) between the plus pole of the on-board voltage and the flashing module ( 8th ), and that the flashing module ( 8th ) with the stop light ( 9 ) connected is. Flashing stop light on motor vehicle according to claim 2, characterized in that the fixed contact surface ( 6 ) with an adjusting device ( 7 ) is provided. Flashing stop light on the motor vehicle according to claim 3, characterized in that the flashing module ( 8th ) is connected to the third, middle traffic light.