DE1480243A1 - Flashing device, in particular for securing stopping motor vehicles - Google Patents

Description

Flashing device, in particular for securing stopping motor vehicles. The invention shall look to a flashing device, retaining in particular for securing motor vehicles by flashing circuit existing rear, braking and / or flashing lights, which has a Biaetallelement in its load circuit, interrupts at ung the circuit to the consumers through its deformation and / or includes .

Flashing devices for securing stopping motor vehicles, in which parts of the existing rear, brake or flashing lights are used, have been known for a long time. ] Co has also been suggested propping or the brake lights of motor "vehicles to the backup at jeäem contents of Yahrzeuges automatically flashing lights switch: The circuit took place in these devices, either a connection .B. with the speed drop the Gesohwindgkeitemessers or hichLaschine or via separate Ylishkraftregler.

These devices have the disadvantage that they are by the automatic control for each the flashing circuit nahalten cause, without then such a fuse would be necessary in most cases of stopping. Two fast transport our time Aue but any unnecessary Auuimerksamikeitswiridumg be avoided. For this reason, such flashing devices with automatic switching are to be rejected. For flashing such devices are similar to known from direction indicators, blind sensors with binetallic strips - which each cause a circuit to flash. the on different circuits in the case of Change of direction in these devices is within the Directional switch made. Furthermore, there are switching devices for Beklaoe lighting bam came, in which Beism body and dgroh the heat effect aoa l Am geastromes of the The Beleuoheine Bregneteohe Bader has been prepared in the same way is affected, which at räiirwag des stroario r eis nater # breaks and closes the circuit again when it cools down.

With these switching devices , however, it is inevitable that when the circuit is interrupted as a result of the Breguet's spring heating up, an arc is created, since the Breguet's spring only deforms slowly and therefore only slowly interrupts the circuit. This switching process results in a permanent fire hazard and also causes the contacts to wear out very quickly. Another disadvantage is that the Breguet spring responds even to small vibrations and therefore can not be used with mobile units. There is also known thermally controlled switching devices, in which a besteAden of insulating material and contacts with comparable planned action switch back and forth, with a current circle is closed and is interrupted again. The reciprocating movement of the switching member is caused by that a Bimetallatreifen undergoes through a heating coil, a heating or cooling, characterized deforms and presses a formed as an omega spring Dbertotpunktfeder, which for their part again back the switching member back and forth. In this switching device, the bimetal strip is only heated by a specially provided heating coil. The intermediate omega spring has cutting edges on its two elfids , in which the biaetallic strip and the switching element are mounted. This arrangement is extremely sensitive to vibrations and requires cumbersome and difficult adjustment work so that the switching process proceeds with reasonably without interference. A time switch has also become known which is switched on manually by actuating a lever. This mechanical movement of a Bimetallstreiten is changed in its Zage and presses an insulator a metal strip against a further strip of metal. By the two metal strips now flows current, etc. brings a lamp to light up. "By the operation of the shift lever, a second current is circular closed, which flows through the lever to the bimetallic strip and this heated. Infolger the deformation of the bimetal. Arguing is the lever returns to its original position, the second circuit is interrupted, the bimetallic strip cools down and detaches from the metal strip. This also interrupts the second circuit and the lamp , etc. goes out. This timer therefore only causes a single IVxtlighting the lamp ups., the Biiaetallstreifen only serves ö, then extinguished the lamp after a certain time by itself. an automatic and rhythmic up Glow = th and extinction is now impossible.

Finally, a flashing device is known in which on a bimetallic strip below the contact to the first circuit an insulating piece is secured, which actuates a contact spring in Verformugg of the bimetallic strip, which until Wiedererkalten of Bimetallstreifenn a second stream circle: Due to the arrangement of the insulating below of the contact to the first circuit is due to the free swinging of the bimetal strip above the Insulating piece a better contact can be achieved.

This arrangement has the disadvantage that the bimetal strip does not swing far enough at the level of the insulating piece to ensure perfect contact between the downstream contact springs , since the counterpressure of the downstream contact springs on the bimetal strip is so strong that it does swing freely above the insulating piece, on the other hand, the downstream contact springs are no longer actuated. In addition, this arrangement has the disadvantage that the Bimetallm stripes no longer work properly in big oiled because he is supercooled by the surrounding him old as far as being able to maintain its required for deformation characteristic temperature.

All of these disadvantages are completely eliminated by the invention. It differs from the known Vorrich # obligations in that the bimetallic strip above the contact for the first circuit a provided with a contact insulator is fastened, which closes upon deformation of the bimetallic strip a second circuit. The power supply to contact the insulating piece is made via a flexible one Conductor, wire or the like .. By the arrangement of the insulating piece Above the contact to the first circuit and the arrangement of the contact on the insulating piece , it is achieved that the free swinging of the metal strip is not hindered by any counterpressure and that the two circuits make clean contact. The bimetallic strip quickly releases from mating contact and squeezes as a result of the unhindered off. the insulating piece vibrates with the contact firmly on the mating contact belonging to the second circuit , which ensures reliable contact separation in the first circuit and contact in the second circuit and vice versa. In order to achieve perfect deformation of the bimetallic strip even with extreme celts , the mating contact of the bimetal. strip, a heating resistor is connected downstream in parallel to the first circuit. This heating resistor not only causes the immediate vicinity of the bimetallic strip to be heated , but also requires a somewhat stronger mechanical longitudinal section deformation of the bimetallic strip, which consequently only suddenly releases from mating contact at a higher temperature.

The existing lights of the motor vehicle lighting are switched in such a way that taillights, brake lights and / or flashing lights, diagonally or alternately in parallel, light up as a springboard door. This flashing circuit is especially adapted to a long-range effect , which when stopping as a result of an emergency, e.g. 8 ..

a breakdown or the like, is absolutely necessary on long-distance traffic roads.

The switching can take place in such a way that, for example, both taillights, both brake lights and / or both rear turn signal lights are made to flash in parallel . Will also have a flashing effect on the If the front of the vehicle is desired in order to warn oncoming vehicles on oncoming traffic , this switching can also be carried out very easily. The warning effect is reinforced if necessary by the fact that, depending on the color of the existing rear, brake and / or indicator lights, the right rear light and the left brake or indicator light and vice versa left taillight and the right brake or indicator light to Light up. This jumping circuit is very simple be carried out so that the insulator having a plurality of contacts provided with contact bridge of conductive material is comparatively see when the bimetal strip is deformed, several circuits, possibly of different polarity, are opened and / or closed . To verhiädern fatigue of the Bimetall'atreifene by seasonal temperature changes, it is further proposed that the counter-contacts in a known manner train.

The application of the new : of course, not entertaining to the field of securing motor vehicles is limited, but is possible in all applications where a flashing circuit even more complicated way is desired.

The drawing shows some exemplary embodiments of the invention. Fig.l represents a circuit diagram; 2 shows a 2-pole flasher unit; 3 shows a 3-pole flasher unit and in Pig.4 a further embodiment of the flashing device is shown of several circuits to the circuit. The circuit diagram in Fig.l gis flasher switched so, that they can be used as a warning flashing device when the vehicle is stationary and serves as a direction indicator device when the vehicle is moving. while holding the contact a of the two left turn signals 11 and L2 for both right flashing lights R1 and R2, Sovie the contact is by tightening the hand brake in a fastened to the hand brake lever switch HB b, which passes the positive current to the turn signal switch BO closed. If now the Warnur be switched blinklicht, so the blinker switch is B8 of the plus circuit to the bunker relay IM closed by actuation. By the direction indicator lever BO 1 and the negative circuit to the winker relay B8 is now closed and the four bunker lamps L1, L2, R1 and R2 flash rh7thaisch on. During the trip, the contacts a and b of the switch # Handbrens BB opened, the two left Blinklichtir L1 and L2 are separated from the two right-hand flashing lights R1 and R2 again, and the plus contact b is opened again. The blinker. relay BR receives the positive current through the ignition ZSC and by actuation of the direction indicator lever BS 1 g via the contacts of the winker relay BR Minus current is now supplied and f via the contacts of the electric circuit is closed to the left or to the right flashing lights, which are now through their blinking indicate the desired change of direction. This arrangement is guaranteed, then the hazard warning device may be only at su # handbrake, so at a standstill iahrzeug turned on. While with the handbrake released. So during the stretch, the flasher indicates the change in direction by actuating the direction indicator lever.

In Fig. 2, the plus and minus circuits to the flasher unit are closed via the flasher switch BS 2. The positive current flows through the bimetal strip B via its contact 1b and via the Gegenkontakt'lji to the consumer L and to the stimulus resistor Hw. The lamp L lights up and the heating resistor HV heats up the area around the biaetallic meeting . Due to the mechanical deformation of the bimetal strip it sets its thermal deformation while resisting until, after reaching a certain temperature, it abruptly separates from the contact 1 and free dure.13 vibrates, whereby it the connectedness by a Isolierpimpel with it which contact 22, which receives power via a flexible conductor D, wire or the like, presses firmly against the spring-loaded contact 3a; now the lamp up lights up . After the bimetallic strip has cooled down , it snaps back and makes contact with lamp L again, while contact with lamp R is interrupted. 5 shows an example. Embodiment of the flasher unit at the WEL chem the current over a fleaibelen conductor D to the conductive bridge 2 and after the thermal. Verfc: ° Taring of the bimetallic strip B, via the contacts 2b and 2c to the contacts 3 and 3b of the flashing lamps L1 / 12 and Rl / * 22 flows. Big.4 illustrates an embodiment of the flasher unit in which five of each umanhängige lamps over five different circuits are made to flash. After activating the indicator switch BS 3 , the current flows through the bimetal strip B to the heating resistor HW and to the lamp H3, at the same time it flows through the flexible conductors D and D1 to the conductive bridges 2 and 2a and from there via the contacts ld / lc to lamp Hl and via contacts lh / lf to lamp H2. After heating , the bimetallic strip B suddenly detaches from its contact 1 and, due to its thermal deformation, presses the contacts 22 against the contacts 3, as a result of which the lamps V1 and V2 light up. After the bimetal strip B has cooled down, it snaps back, whereby the circuit to the lamps V1 and V2 is interrupted and the circuit to the lamps H1, E2 and H3 is closed again. The two conductive bridges 2 and 2a are through art.

stÖffpispel K connected to the bimetallic strip B in an insulated manner.

Claims (1)

Claims. 1. Indicator device, retaining in particular for securing motor vehicles by flashing circuit existing rear, braking and / or flashing lights, which in their usage circuit comprising a bimetal element which interrupts upon heating the circuit to the consumers through its deformation, characterized in that by tightening the hand brake connects a same associated switch (FS) via a closing contact (a) two independent circuits. (L1 / L2, Rl / R2) to a circuit and a second closing contact (b) the current to a hand switch (BS) , which after actuation closes the circuit via a flasher unit (BR) and a second hand switch (BS 1) to the consumers (11 / L2-R1 / R2). z. Flashing device according to Claim 1, characterized in that the two closing contacts (a + b) of the switch (ES) on the handbrake are designed as opening contacts . 3. Indicator device according to claims 1 and 2, gekenazeichnet in that the bimetallic strip (B) above the Kontak- th (1) to the first circuit (L + HW) an insulating piece (K) is fixed on which a further contact ( 22), which closes a second circuit (R) when the metal strip (B) is deformed. 4. Flashing device according to claims 1 to 3, characterized in that the insulating piece (K) carries one or more bridges (2 + 2a) provided with contacts which, when the bimetallic strip (B) deforms, further circuits, possibly different ones Polity, open or close. 5. Flashing device according to claims 1 to 4, characterized in that the contact or the bridges on the insulating piece (22 + 2 / 2a ) is supplied with current via flexible conductors (D / D1). 6. Flashing device according to claims 1 to 5, characterized in that the terminal to the first circuit is followed by a stimulus resistor (SW) in parallel with the first circuit . ?. Indicator device according to claims 1 to 6, characterized labeled in # is characterized in that the bimetallic strip (B) inlekanater manner is deformed diagonal mechanically in its longitudinal section, so that jerky thermal deformation when exceeding a certain temperature.