DE102007042495A1 - Silica sand scattering device for a motor vehicle comprises a container mounted on a vehicle wheel with a conveying line joined to an upper suction tube and a refilling line for refilling the device with silica sand - Google Patents

Abstract

Silica sand scattering device comprises a container (2) mounted on a vehicle wheel (1) with a conveying line (3) joined to an upper suction tube (4) which is joined to an outflow line (5) and a refilling line (6) for refilling the device with silica sand. Preferred Features: The conveying line, the suction tube and the refilling line are dimensioned so that the amount of compressed air and silica sand can be controlled by the driver on each movement of the brake pedal. An outlet opening of the outflow line can be closed by a flap which is operated by a drive.

Description

The The invention relates to a device according to the preamble of claim 1.

The System closes the risk of skidding in the event of black ice and snow come, as far as possible.

The System leads when braking on an icy road, the vehicle without slipping and without any longer Stopping path to a halt.

The Provisions according to §§ 41,42,53,29 StVZO are not affected by the installation of system parts. It arise in this regard no changes affecting safety regulations.

The Safety system is used to slow down vehicles on icy smooth Lanes as well as snow cover and also limited in aquaplaning by a quartzite sand spreader with at least one mountable in front of a vehicle with container an overhead conveyor line, an overhead suction pipe and a top refill line.

Versus a sudden incoming ice-slippery (ice-storm) There is currently no road safety measure.

since Some years ago, winter slipperiness on highways and Motorways only scattered with salt; Salt and the condensate increase but the smoothness until the tread wear down the ice track and grip the roadway can.

In addition, can Rain the Autauwirkung of the salt pick up and then freeze.

Also after fresh snow must go again Salt are sprinkled.

The road administrations are currently unable to, at any time and in any place for handy people road conditions to care.

Versus Black ice is hardly road action to meet in time, as it is usually limited and occurs so suddenly that it the drivers surprised.

task It is therefore an object of this invention to provide equipment on motor vehicles, the the effect of street action to compensate for slipperiness in so far as they are excessive sliding and slippage of the vehicle automatically quickly eliminated. there should the possibility insist on showing the driver the slip in time.

These Task is according to the invention with the Characteristic feature of claim 1 solved.

development according to the invention results from the features of subclaims per se or in retrospect on the main claim.

facilities on road vehicles, which are called by means of compressed air Sand on their lane blown, have not been known and also not in use. The heavy trucks and buses for large climbs attached Sandstreuanlagen can so far only limited use; with them cold, not dried split or grainy sand by its gravity from a storage container by a compressed air operated slide opening in a spread about the tire width in front of the wheels the roadway.

Because he does not let himself be pressed in on icy trail and on ice and arrests he can not fix the slip.

Because of greater Scatter losses and low controllability reaches the litter barely. There is also a risk that the sand due to moisture in the container freezes and not reliable can sands.

Experience has shown On an icy track sliding wheel barely to hold or back to Because the necessary enlargement of the friction and form-fitting with the track with thawing or blunting scattering agents can not be reached fast enough.

Longer braking distances but are incalculable and often dangerous. By salt is the Braking distance as a result of the lubricating dew water as long as still diminished until the ice track breaks. For the slipping case usually takes too long.

These Statement helped to give up the "just sands". On the other hand became much larger after sanding on a stuck snow track determined when the sand was pressed in while rolling over and set could.

A Duration effect is with hot To achieve sand that melts and fixes on an icy track, with the wheel pressing him, so he frozen soon. This also results for the following vehicles a long handy track.

Here I emphasize: Especially for Young and inexperienced professional drivers need aids at hand are given.

The quartz sand diffuser eliminates with given values snow and ice smoothness immediately as they press the tires into the stuck track and press.

at Black ice, especially lightning ice, these agents achieve their effect by that the quartzite acts in its properties to soil and in conjunction with heated at a high temperature from the exhaust gas flow the quartzite and so melted down on icy lane and fixed.

Hot quartzite sand could although with usual, even simple devices spread, but not at the same time press on the road and usually not in time enough.

dosed adequate and timely for each vehicle achieves only one more crystalline according to the particular need Device according to the invention on the vehicles themselves; here dependent on slippage and self-acting.

The heat the exhaust gas flow, usually with over the half flows into the open unused, this is inventively in the Pressure chamber (storage space) dammed and heated by heat exchanger additionally.

The Exhaust gases are in a pressure vessel by means of a heat pump additionally heated. The hot air flows through then the quartzite sand and heat it.

The Exhaust gas according to the invention can also be a tube system in the sand container flow through that the sand flowing through Air heated so they as heat exchangers acts and heats the sand. The temperatures of air and sand are controlled by the compressed air quantities of the compressor.

The hot air is inventively a hose or other line on the intake manifold / delivery pipe tangentially from above blown to the profile to make it handy and possibly. Ice-free. It is switched on by the slip pre-signal or already before by the Driver.

With the hot air gets hotter at the same time Sand over the profile is strewn on the road ahead of the wheels. Suitable for this purpose middle grain Quartzite of grain size 2/3 mm is particularly good because it is evenly dense scattered and hot melted, one of the road surface similar Structure of the lane results.

at same weight of sand, it can be sprinkled much denser as coarse-grained Split, the form closure of Profils obstructed and the lane harms.

Of the Quartzite sand in this form is also suitable in wet and with water-smoothness only thin under the wheel pressure Slip layer to bridge.

According to the invention Air and sand quantities adjustable. A device with a pneumatic sand production was therefore according to the invention with a adjustable compressor and other controllable inflows too the containers and the vents created.

The Regulation of the facilities, from the exhaust gas flow to the vents, is done by the driver and is also influenced by the driver.

By simple changes their assignment, such as head and filling capacity let yourself According to the promotion program vary widely.

The Setup is in all variations by the driver first himself affected like the dosage of the flow rate, nevertheless by the regulation of the brake pressure.

Of the Braking distance and the brake pressure regulates the consumption of the anti-slipping agent (Quartzite sand). Crucial, however, is the road condition.

According to the invention of Driver on ice and snow perform full braking without risk at any time, without to spin and no longer Stopping distance.

The flow energy the exhaust gases from the engine via delivery lines to the stray sand containers. The of the hot air in the promotion line metered quartzite sand quantities are thus blown to the tire tread, that it she takes in profile width on the icy track.

There the quartzite grains melt the ice sheet, wherein they are pressed by the profile so that they are in the frozen track are fixed and freeze.

The activities against slipping are advantageously of signals of Gleitschutzreglers triggered.

in this connection exists a pre and a main signal. At low slip is first the hot air and if the slippage continues, the hot air is released with quartzite sand.

The anti-skid controls, which have long been known on rail vehicles, are being solved by sets of wheels that set the slip limit set on their controller Pass the brake for them to roll again.

Because similar Regulator now also on road vehicles to be used, their wheels despite loosing Often the brakes on icy tracks are not going to roll, It is suggested to turn on the quartzite sand at the same time as it releases and also before this for huge Anti-skid set limit lower starting value Adjust sliding and skidding slip.

incipient Slip can be namely even by a slight improvement in friction and form fit finish quickly.

From this fore signal is the hot air and with further slippage only little time delays the sands turned on, which then continues when the slip is the upper set Limit is exceeded, with the brake is released will and the wheel on the sand track now safe and fast again rolls, even if the braking force is only reduced.

Thereby become the shortest possible with slip Achieved sliding and braking distances and avoided more severe slippage.

There the slider slip earlier and more reliable notes as the driver, it is suggested that the advance signal for him e.g. Flashing light / acoustics and the sanding turns on, so he still intervene and also adapt his driving style.

The Slip signal controlled automatic anti-slip device and the information of the driver contribute significantly to his driving safety and for accident prevention at.

in this connection Only a small amount of air and quartzite sand is consumed because it is controlled depending on slip become so, only with smoothness, by road measures not or not yet eliminated, despite the quartzite sand the vehicle that has driven ahead remains; Slippage due to hot air and short sanding is completed quickly, also because the sliding and Braking distances are only short, finally, because only little sand remains unused, since he blown to the profile and taken from him to the track and thereby limited to profile width.

Without every restriction The invention will be described in more detail below with reference to exemplary embodiments and explains because the drawings are shown only schematically.

Here in shows:

1 An obsolete by an inventive device according to claim 1 and the composition of the system parts of the stray sand container and the functions;

2 shows the function of the reserve tank;

3 shows in detail the function of a quartzite sand spreader and an electronic control of refilling the stray sand containers;

3a shows the cross section of the stray sand container;

4 shows the mechanics, starting from the cab and the influence of the driver on the dosage of the spread rate, the pusher and the device to the brake shaft;

5 shows the function of the stray sand device for rear-wheel drive.

paraphrase

The System can be used both in the two-circuit system (only on drive wheels) as also in the four-circle system (on all Bikes) be applied.

Only by truck / bus

The System works with turbocharger (accumulation charge); in this connection becomes the flow energy used the exhaust gases. The exhaust gases give their, before they flow into the open air Energy to a turbine.

Only by truck / bus

The Turbine drives a compressor, which is connected to the same shaft is. The compressor sucks extra Fresh air and passes it with high pressure and heated in one Storage container. The exhaust gases are first dammed in a storage container in front of the exhaust gas turbine. By the Jam charging, the exhaust gases with almost constant pressure to the turbine directed.

The exhaust gas flow is in front of the rear silencer or behind the catalyst over redirected a parallel side channel. This will be a Choke / closing flap attached, which is connected to a cable, leads into the car and is attached to the dashboard (pull knob with grid and tension spring).

The tension spring is tightened when the throttle valve is closed. If the cable is unlatched on the dashboard, the tension spring loosens and simultaneously opens the throttle and the exhaust gases go through the tailpipe into the open air.

turbine

at The turbine is a custom-made, measured at the work capacity Motor vehicles, in particular for buses and heavy vehicles; For cars, the installation of a turbine is not required.

The Impeller of the turbine is centripetal, from outside to inside, led around one higher Pressure for the work transfer to reach.

By the congestion charge, the exhaust gases with almost constant pressure directed to the turbine. As the pressure increases, the temperature increases and becomes at excessive pressure through a blow-off valve according to the ISO rule and the working capacity (utilization energy the exhaust gases) kept constant.

Storage space (pressure chamber)

The flow energy the exhaust gas is the working capital unlimited available.

Because this gaseous Energy the combustion process in the Engine is removed, applies to the process of Work process to eliminate another part of pollutants. Therefore, a deposit, e.g. Soot particles, before entering in the pressure vessel performed.

at The pneumatic device is a compressed air preparation device, which operates on the Side channel (diversion channel) is installed. This is it a compressed air filter, an impact-resistant sight glass; here be the solid and liquid Pollutants separated.

Of another is located before entering the pressure vessel Pressure valve for setting the required working pressure. Of the Pressure is displayed and controlled by means of a pressure gauge.

conditioned the material stress with inner high pressure / overpressure the material procurement of the pressure vessel is essential. The pressure vessel is therefore made of special material.

Choke / closing flap

The Throttle is a custom-made and part of the patent system.

The Throttle valve is behind the catalyst to the exhaust system with a cable and a pull button inside the car on the dashboard appropriate. At the knob is a grid with a tension spring, around the pull button during to lock in the operating time. It is planned to be able to control the system parts electronically.

At the axis of the throttle is a tension spring and a Hook for hanging the Cable line.

The Axle of the throttle is helical divided and regulates the opening or closing the Main channel of the exhaust system.

The Cross-connection to the brake pedal is considered to be a regulator that operates when pressing the Brake pedal opening and closing the two throttle valves (in the main and side channel) to the brake pressure adapts and the amount of anti-slipping agent regulates.

in the Four-way system will help achieve the necessary flow energy an additional one Rotor mounted, which is powered by a small electric motor.

Of the pressure vessel is sized so that too after repeated braking the full braking effect to anti-slip system is ensured.

Side channel (exhaust diversion)

Behind the throttle valve, the exhaust system is interrupted and with a Flange (T-piece) provided. In the flange is a Abgasumleitung, parallel to the exhaust system, appropriate.

• – Eine weitere Drossel-/Schließklappe
• – ein Druckbehälter
• – ein Schmutzabweiser
• – ein Druckmanometer mit Abblaseventil
• – eine Turbine mit Verdichter
• – Verbindungsteile zu den Bremssystemen und deren Elementen
• – Leitungen zu den Quarzitsandbehältern und Leitungen.

The duct is connected:

• - Another throttle / closing flap
• - a pressure vessel
• - a dirt deflector
• - a pressure gauge with relief valve
• - a turbine with compressor
• - Connecting parts to the brake systems and their elements
• - Pipes to the quartz sand tanks and pipes.

Of the Side channel is mounted behind the catalyst; §§ 22/19 StVZO will not be touched.

Of the Installation of the side channel is behind the catalyst at each point possible, also on the tailpipe.

The exhaust systems are usually equipped as standard 2-4-piece, so that an additional separation of the exhaust system to install a flange partially repeals. The installation of the side channel and associated parts are gas / airtight completed so that at a Abgasuntersu There can be no incorrect measurement.

Of the Distance of the side channel to the exhaust system and to all other vehicle parts is at least 25 mm.

To the complete installation, the exhaust system is on their tightness checked.

Quartzite sand container

in this connection is it for each wheel has a separate container; in the four-way system also on the rear wheels (for buses and vehicles over 10 meters Length = mandatory).

Of the container includes the quartzite sand that is over a suction line and a suction port located inside (Screen tube) and outside, on End of the suction line attached vent, initiates the braking process.

Of the vent is equipped with slats.

The Anti-slip agent consists of 100% quartzite.

at the outflow is the share of funds in the total volume approx. 15%. The calculation of the Contents in the containers, based on the braking time and the brake pressure at multiple braking takes place primarily depending on the exhaust gas streams and the sucked fresh air.

As soon as the driver presses the brake pedal moved the control rod with the tooth ribs and the toothed segment thus regulates the volume of flow energy and associated with this the amount of quartzite sand in the outflow.

Fuse (off and on)

The Fuse represents the pull button on the dashboard in the cab. This is connected to the throttle in the exhaust port and a throttle in the side channel.

at normal road conditions the pull button is pressed in (unlatched) and here the locking pin on the axis of the throttle actuated.

The Exhaust system (main channel) is for the exhaust gases to the tailpipe free. The entire system system remains installed throughout the year; It is a system system completely separate from the exhaust system.

A Backup represents the suspension of all Movement elements when no longer need the anti-slip process. The throttle in the main channel and the throttle in the side channel is over a toothed segment interconnected. The two pinions are set on the sector gear so that when the throttle is in Main channel opened at the same time, the throttle in the side channel is closed and vice versa.

On the sector gear is another pinion with an internal thread attached, in which a toothed screw is screwed. With the screwing the tooth worm is actuated a locking pin which, during the Braking, the movement elements responds and this after completion of the braking operations Locking pin with the help of the tooth worm from the push rod up pull out to the stop so that this for further braking, leave the moving elements at a standstill.

at Resumption of braking at The driver pulls the pull button again. By briefly pressing the Brake is the locking pin with the help of the toothed screw again in the lead the push rod screwed in and actuated the entire movement element.

The Sprockets are tuned so that this at the end of the braking each on the last segment teeth come to a standstill.

The gap width all three pinions are each in the same to the toothed segment relationship (Module and number of teeth). Pinion and sector gear each have the same module to each other.

reserve tank

Of the Reserve tank, provided with quartzite sand, serves to refill the container by means a rotor and a transistor.

The Need for refilling cause sensors that fall below the safety stock on a control unit the time of refilling and the refill quantity determine.

Filling / refilling the container with quartzite sand from the reserve tank

To the Fill up the container Quartzite sand is used on the cover plate of the container Pulse wire sensor driven by a permanent magnet becomes.

The permanent magnet, a small flat magnet, is glued directly onto a rotating sprocket wheel. The sprocket wheel will sit by means of a pinion and one on the same shaft brought the reel to rotate.

in the Interior of the container is located below the cover plate, a pressure plate (this push that Quartzite sand successively, depending on consumption, down). With the Lowering the pressure plate is on reaching the safety stock triggered a pulse by means of a roll-off.

A mounted on the cover plate rotation disk, with a Toothed ring is provided, on which a permanent magnet is attached, is by means of the unwinding spool and sitting on the same shaft pinion made to rotate. Work on the induction principle the motion sensors and the position sensors. The date of the Impulses regulates itself over the position of the permanent magnet to the pulse wire sensor, the container is attached.

With the rotation of the unwinding spool is the same dimension as a sprocket, which lies on the sprocket. Upon reaching the lowest level (Safety stock) reaches the magnet by means of rotation of the ring gear the intersection of the pulse wire sensor.

Connected with the reserve tank the pulse wire sensor induces a voltage and transmits a signal to the sensor on the reserve tank is appropriate. At the same time, an acoustic signal is issued to the driver.

All Pipes inside the container, like exhaust gas flow line, Suction line to the vent as well as reprinting are telescopically installed.

With the contact to the reserve tank becomes the refill line to the container open. With the beginning of refilling there is a reversibility of the principle. Upon reaching the lowest level the pulse wire sensor induces a voltage and transmits a signal to the sensor of the reserve tank. With the open the reprinting reversibility occurs and the voltage is set to zero by means of a further rotation of the ring gear by 30 °, so that the intersection is interrupted.

With the time to refill of the container the value / force of the magnetic flux is changed.

The Unwinding reel receives from the sensor of the reserve tank the impulse for reversal and turns in the inverse relationship above, rolls up and thus pulls the pressure plate parallel with after filling above.

at Reaching the highest level the pressure plate is a signal to the sensor of the reserve tank and the filling line will be closed; the filling process is thus finished.

1

Vehicle wheel / wheels front wheel drive

2

Stray sand container, front-wheel drive

2a

Stray sand container, rear wheel drive

3

delivery line the flow energy

4

intake manifold, Connection to the vent

4a

rotor

5

outflow With

5a

Outlet opening / closing

6

replenishing line

7

vent

8th

Abzweigflansch

9

Compressor, only by truck / bus

10

Turbine, only by truck / bus

11

intake for fresh air

12

Tank / Front

12a

Tank / rear

13

rotor

13a

pulse receiver

14

transistor

15

drive shaft

16

fan belt

17

quartzite sand

18

cover plate

19

off reel

20

Ring gear / pulley

21

pinions

22

permanent magnet

23

Pulse wire sensor

24

printing plate

25

wiredrive to the unwinding reel

26

axis of rotation

27

Safety Line / Minimum Holding

27a

Security line / maximum stock

28

pull knob with tension spring and grid

29

rope

30

guide rings on the rope

31

throttle in the exhaust system (exhaust)

32

throttle valve axis

33

tension bolt on the throttle valve axis

34

tension spring with fastening hooks

35

Tooth rib segment

36

pinions to regulate the exhaust gas flow

37

side channel

38

throttle in the side channel

39

pinions to regulate the exhaust gas flow in the side channel

40

Schmutzpartikelabweiser

41

pressure gauge

42

Push rod device / cross connection

43

ball joint

44

hinge pins

45

bracket

46

pinions with internal thread

46a

inner thread for safety pin

47

safety pin

48

dental screw

49

leadership Machine to the push rod

50

pushrod

51

Pressure chamber / storage

52

holder on the bearing block

53

Pushrod cross connection

54

pushrod to the brake pedal shaft

55

delivery line at the branch flange to the rear drive

56

rotor

57

Rear drive wheels

58

tailpipe the exhaust system

Claims (39)

Quartzite sand spreader for a vehicle, in particular a motor vehicle, comprising at least one in front of a vehicle wheel ( 1 ) mountable containers ( 2 ) with an overhead conveying line ( 3 ) an overhead suction pipe ( 4 ) connected to a discharge line ( 5 ) and a top refill line ( 6 ) for refilling quartzite sand. The top suction device ( 4 ) is equipped with a small motor for actuating a rotor ( 4a ) for the purpose of suction. Quarzitsand spreader according to claim 1, characterized in that a connected to the discharge line vent ( 7 ) provided with fins just before the footprint of the vehicle wheel is directed to the ground. Quarzitsand spreader according to claim 1 or 2, characterized in that the delivery line ( 3 ), Suction pipe and discharge line ( 5 ) as well as 6 ) are so assigned and dimensioned so that with each movement of the brake pedal by the driver, the metered quantities of compressed air streams and Quarzitsandmengen are regulated. Device according to Claims 1 to 3, characterized that initially hot compressed air, From a certain amount of compressed air more and more quartzite sand smaller grains and larger amounts with stronger airflows promoted to Qarzitsand become. Device according to one of claims 1 to 4, characterized in that an outlet opening ( 5a ) of the discharge line ( 5 ) with one of a drive ( 4a ) operated flap is closed. Device according to one of claims 1 to 5 characterized in that the outflow line ( 5 ) has a fixed connection to a compressed air source that introduced compressed air has the flow energy that incoming compressed air from the container ( 2 ) expelled quartzite sand and from the outlet opening of the outflow ( 7 ) blows out. Device according to one of claims 1 to 6, characterized in that the exhaust gas flow and additional fresh air supply ( 11 ) via a compressor ( 9 ) a turbine ( 10 ) is flowed through and heated. Device according to one of the preceding claims, characterized in that the hot air covers the quartzite sand in the container ( 2 ) flows through, heated, dried and flows through the discharge line ( 5 ). Device according to one of the preceding claims, characterized in that in the stray sand container interdependent tube / pipe system is that flows through the exhaust gas and additional fresh air and thereby the quartzite sand ( 17 ) heated. Device according to one of the preceding claims, characterized in that the flow energy over at least one compressor ( 9 ) in the stray sand container ( 2 ) via a pipe system ( 4 ) the quartzite sand ( 17 ) flows through it, heats it, dries and by vortexing to promote the amount of quartzite sand to be applied via the outflow line ( 5 ) is discharged. Device according to one of the preceding claims, characterized in that the compressor output via at least one throttle valve ( 38 ) to the stray sand container and that the throttle is adjustable. Device according to claim 11, characterized in that a further throttle valve ( 31 ) mounted in the exhaust system with the throttle ( 38 ), Paragraph 11, with a pull rope ( 29 ) leads into the car and is attached to the dashboard, pull knob ( 28 ). Device according to claim 12, characterized in that the traction cable ( 29 ) with a tension spring and a grid directly with the throttle in the exhaust system ( 31 ) and can be operated by the driver. Device according to one of the preceding claims, characterized in that, measured by the working capacity in gravity vehicles and buses, an additional turbine ( 10 ) is installed for work transfer. Device according to claim 14, characterized in that the impeller of the turbine ( 10 ) centripetal is performed in order to achieve a higher pressure for the work transfer. Advantageous embodiments and developments of the invention will become apparent from the features of the dependent claims themselves or in reference to the main claim. Device according to one of the preceding claims, characterized in that the exhaust gases initially in a storage container (pressure vessel) ( 51 ) are dammed. Claim characterized in that before the occurrence of the exhaust gas flow in the pressure vessel, a pressure valve ( 41 ) to set the required working pressure. Device according to one of the preceding claims, characterized in that a flexible delivery hose ( 55 ), connected to the branch flange of the conveyor line of the front-wheel drive ( 8th ) to the quartz sand filled containers ( 2a ) is made possible for rear-wheel drive of the scattering process. Device according to claim 17, characterized in that on the branch flange ( 8th ) of the support line ( 3 ) a hose connects, the rear wheel drive firmly in front of the wheel, with front wheel drive on the brake linkage ( 54 ) is held so that hot air and quartzite sand is blown from above tangentially to the profile of the drive wheel, which takes the quartzite sand on the road, forming a narrow sand trace; for subsequent vehicles also advantageous. Device according to one of the preceding claims characterized in that no at the same time both drive wheels, e.g. from the middle of the vehicle Supplied hose lines. Device according to one of the preceding claims characterized in that Vehicles with Gleitschutzregler this by means of its signals starting slippage turning on the hot air sanding and loosening the Braking causes the switching on of the hot air, the sands and / or the brake release delayed simultaneously or temporally to each other. Device according to claim 20, characterized that at Vehicles without anti-slip control the slip signals from the voltage drop in the power transmission generated as a result of sliding and skidding slip. Device according to claims 20 and 21, characterized that by the slip leading signal a flashing light and sanding a steady light for the Driver is turned on. Device according to claim 1, characterized in that the refilling of the containers ( 2 ) with Quarzitstreusand by means of a rotor ( 13 ) and a transistor ( 14 ) he follows. Device according to claim 23, characterized in that one on the cover plate ( 18 ) mounted impulse wire sensor ( 23 ) a permanent magnet ( 22 ). The permanent magnet, a small flat plate ( 22 ) is directly on a rotating sprocket ( 20 ) glued. Device according to one of the preceding claims, characterized in that the toothed wheel disc ( 20 ) by means of a toothed pinion ( 21 ) and a sitting on the same shaft up / unwinding reel ( 19 ) made to rotate. Device according to claims 24 and 25, characterized in that in the interior of the freezer ( 2 ) below the cover plate ( 18 ) a printing plate ( 24 ) is located. The pressure plate ( 24 ) pushes the sand, down according to consumption. It is directly connected to the roll-up / unwind spool ( 19 ) on the cover plate ( 18 ) connected. Device according to claim 26, characterized in that with the lowering of the pressure plate ( 24 ) a sprocket plate ( 20 ) on the cover plate ( 18 ) by means of a toothed pinion ( 21 ) made to rotate. That the permanent magnet mounted on the sprocket wheel ( 22 ) at the rotation end point of the sprocket ( 20 ) triggers an impulse. The momentum is generated by a specific pivot point of the sprocket ( 20 ) and fixedly connected to the permanent magnet ( 22 ) from a sensor / pulse wire sensor ( 23 ) aired. Device according to one of the preceding claims, characterized in that with the rotation of the sprocket plate ( 20 ) dimension equal to a roll-up and unwind ( 19 ) is set in motion. Device according to one of the preceding claims, characterized in that the pulse generator ( 23 ) on the cover plate of the stray sand container ( 2 ) is connected to a sensor on the reserve tank ( 12 ) for quartzite streusand. The pulse receiver on the reserve tank ( 12 ) triggers the refilling of debris sand from the reserve tank ( 12 ) in the stray sand containers ( 2 ) to escape from the wheels ( 1 ). Device according to one of the preceding claims, characterized in that the pulse-wire sensor ( 23 ) induces a voltage and thus transmits a signal to the sensor of the reserve tank ( 12 ). Here, a light / acoustic signal is issued to the driver. Device according to one of the preceding Claims characterized in that reversibility occurs at the beginning of refilling. Upon reaching the lowest point ( 27 ) the scattering agent in the container ( 2 ), wherein the pulse wire sensor ( 23 ) induces a voltage and transmits a signal to the sensor ( 13a ) of the reserve tank ( 12 ). With the opening of the Nachfülleitung ( 6 ) reversibility occurs, the sprocket ( 20 ) now rotates counterclockwise and the tension is set to zero by means of a rotation of the ring gear ( 20 ) by 30 °. Device according to claim 31, characterized in that when the maximum level is reached ( 27a ) to the reservoir of sand in the container a pulse to the sensor ( 13a ) of the reserve tank ( 12 ) and the filling line ( 6 ) will be closed. Device according to one of the preceding claims, characterized in that a fuse ( 47 ), connected to the pull button ( 28 ) in the cab, a throttle ( 31 ) in the exhaust system and another throttle in the side channel ( 38 ), consists. In normal road conditions, the pull button is pressed in, unlocked, and thus the safety pin ( 33 ) operated on the axis of the throttle. The exhaust system is for the exhaust gas flow to the tailpipe ( 58 ) free. Device according to claim 1, characterized in that the fuse ( 47 ) the exposure of the entire movement elements when no longer needed to stray sand means. The entire system system remains installed throughout the year; this is a completely separate system. Device according to Claim 34, characterized in that the throttle flap in the exhaust gas duct ( 31 ) and the throttle in the side channel ( 38 ) via a toothed segment ( 35 ) are interconnected. The two pinions ( 36 ) and ( 39 ) are on the toothed segment ( 35 ) so that when the throttle ( 31 ) is opened in the exhaust system, at the same time the throttle in the side channel ( 38 ) is closed and vice versa. Device according to claim 35, characterized in that on the toothed segment ( 35 ) another pinion ( 46 ) with an internal thread ( 46a ), in which a toothed screw ( 48 ) is screwed. By screwing in the tooth worm ( 48 ) a locking pin ( 47 ), which, during the braking operations, the moving elements responsive and this after completion of the braking operations, the locking pin ( 47 ) with the help of the tooth worm ( 48 ) from the push rod ( 50 ) pulls out to the stop ( 49 ), so that they leave the movement elements at a standstill in further braking on dry roads. Device according to Claim 36, characterized in that when the braking operations resume in the case of black ice, the driver again sets the pull button ( 28 ), briefly pressing the brake and the safety pin ( 47 ) with the help of the tooth worm ( 48 ) back into the guide of the push rod ( 49 ) and set the entire movement element in motion. Device according to Claims 36 and 37, characterized that the Toothed sprockets are tuned so that these at the end of the braking each on the last segment teeth for Come to a standstill. The gap width the three pinions are each in the same proportion to the toothed segment (modul and number of teeth). pinions and toothed segment each have the same module to each other. Device according to claim 1, characterized that one conversion from a mechanical control to electronic control advantageous embodiments and further education possible becomes.