DE3729085A1 - Safety motor vehicle with a vehicle front part which is mounted so as to be capable of pivoting downwards and lateral mirror devices - Google Patents

Abstract

The invention relates to a safety motor vehicle with a vehicle front part (260) which is mounted, so as to be capable of pivoting downwards, on an interior space (261) of the vehicle, the vehicle front part being held in a stop position by the pretensioning force of the compression spring (265) of a shock absorber spring unit (265, 266). In order to be able to exert the pretensioning force in a variable fashion, in the present patent application pneumatic springs (298) are additionally attached so as to be capable of pivoting between the front part of the vehicle and the interior space of the vehicle so that the compression spring only produces the required minimum pretensioning force and a control range up to a maximum pretensioning force is made possible by means of the pneumatic springs depending on the pressure applied to them. Thus, when braking on ice, it is for example possible for the rear part of the vehicle to be pivoted merely counter to the pretensioning force of the compression spring towards the front part of the vehicle by the shearing force produced during braking when the pneumatic springs have no pressure applied to them, as a result of which the stability of the vehicle is increased and at the same time lateral veering off of the rear part of the vehicle is avoided. As a result of a highly curved windscreen of the safety motor vehicle which deflects the slipstream laterally, it has been necessary to somewhat modify the mode of operation of the mount of the lateral mirror devices. <IMAGE>

Description

In German patent application P 37 25 591.6 and G 87 10 577.2 is a security force trained as a passenger car Vehicle (SiKfz) depicted and described based on the a mirror device for motor vehicles is constructed and its slippery wind due to a swivel around the vertical axis of a wiper bracket is formed curved windshield. The front part of the SiKfz's is designed as a luggage compartment and swivels down with a front suspension by one ho horizontal transverse axis mounted on the vehicle interior, the Front part of the vehicle through the compression spring of a shock absorber spring unit is held in the stop position or normal position. The patent application also mentions the pretensioning force of the Pressure spring may be adjustable, but this takes time dig and / or complicated to accomplish.

If you look at the different shock absorbers in question types that already exist for the suspension of a motor vehicle have been developed and have one or the other property, which may also apply to the front part suspension of a safety vehicle could be a part, here would be a shock absorber with inte air spring, for example in the large ADAC guide Auto shown and described on page 48, the effect support the compression spring, so that depending on its Druckbe also the pre-tensioning force with which the vehicle front Part of a SiKfz'es held against or against the Front part can be swung down, could be varied. The one shown here, referred to as an air spring and with a Shock absorber combined air cylinder is with a bellows sealed so that the pressure in the cylinder is maintained and does not sink by itself.

Because the required stroke of a cylinder with a wheel suspension is less than the required stroke for the shock absorber Fe the unit for the front part suspension at a SiKfz and there a bellows may leak over time in the present patent application as an alternative to an impact damper with integrated air spring, sepa rate air cylinder with roller bellows seal effective between the front of the vehicle and the interior of the vehicle,  in such a way that their required stroke in any case in real lisable limits is kept.

Instead of a bellows cylinder, there may also be membrane cylinders the conceivable where a rubber membrane for maintaining the Pressure ensures, but is the feasible with membrane cylinders Stroke certainly less.

In order to differentiate from the usual pressure that is not suitable here Air cylinders with piston seals are out of the question here Coming air cylinders with flexible seals as well the expression "air spring" chosen, especially since their mode of operation the same as that of the ones already envisaged, spiraled out those compression spring that the vehicle front part in the stop position holds.

Through the possibility of changing the preload, that is now by the compression spring and the two attached to the side air springs is generated, the braking behavior of a Si Kfz'es be adapted to the particular road surface, because yes when braking a SiKfz'es on smooth, damp or san digem Boden the thrust, which ge over the front part of the vehicle against the rear of the vehicle or against the rear Front part is caused to be smaller than the pushing force when Braking on a non-slip and dry road surface.

If the compressed air is now released from the two air springs, so that only the somewhat weaker compression spring here Holds the front part of the vehicle to the stop, so you may also be able to Braking on black ice will reach the front part down something is pivoted against the vehicle interior, so that the Rear wheels slightly against the front by lifting the transverse axis the wheels can run up.

A SiKfz then behaves something like a bull in the arena instinctively demonstrates, for example, when it wants to come to a full stop on sandy ground: it goes up at the front and stretches its hind legs forward (see Fig. 5 left) . In terms of numbers and artificial weapons, he is inferior to the people here, especially since the tips of his horns and the vocal cords have been removed, but what about his courage, his strength and endurance and his instinct (man is more misunderstood than one Filzlaus), it is superior to humans and as far as intelligence is concerned, one can at least argue about it here.

However, if money justifies the means, it is louder Saints who watch; because in the arena such a bull brings surely more taxpayers' money, like at the slaughterhouse, like a pastor brings in more eggs and inheritance with a cook, like someone who is properly married (most jealousy widows who later passed away).

But if you see things the way they are, then it is definitely possible that the instinctive behavior of a four-legged friend, about carry on a motor vehicle, the lateral breakaway of a Ver the vehicle with the rear part when braking on black ice prevents or at least diminishes.

Because with a SiKfz the possible transverse axis is possible speed is given that the rear wheels against the front wheels simultaneous lifting of the transverse axis can occur here is also the possibility that the vehicle rear part when braking on black ice while simultaneously tightening the Compression spring maintains the direction of travel instead of sideways the thrust against the vehicle generated when braking to dodge left or right.

Instead of skidding, the vehicle becomes here interior slightly raised at the front, which also increases the pressure pressure of the wheels against the road and thus also the stability activity of the vehicle is increased.

If the road surface has a better grip, the two air springs are then to apply a correspondingly high pressure, since here too the thrust between the front and rear of the SiKfz'es is greater when braking.

A compressor can be used to pressurize the compression springs be provided or an air pump from the driver's seat can be operated by hand or by foot, for the pressure display also requires a manometer.

In the event that no air spring should leak, one is Take appropriate precautions to ensure that the defective air spring can be separated from the air pump via a valve.

The road safety of a SiKfz'es is due to the failure ner air spring however not diminished, since the greater danger in slippery ground conditions and there is pressure the air springs should be reduced anyway.

Nevertheless, it is advisable in such a case to use the defective air spring to fix or replace as soon as possible,  so that the SiKfz has a better grip when braking sharply Roadway does not swing up so high and therefore here in the event of a Rear-end collision the kinetic impact energy more effectively is dismantled, which requires less on slippery roads Lich, since here the vehicle you hit is less Stability and thus by giving in to the impact reduces energy accordingly.

Due to an arch around the swivel axis of a wiper bracket te windshield of a Si that repels the wind from the side Kfz'es must also mount the mirror devices in their How it works can be changed somewhat.

The holder still has two parallel to each other ver put on axes, namely a vertically downward Swivel axis for the swivel bearing of the holder and a ver tically upward axis for the swivel bearing of the game gel device.

In addition, however, there is a snap-in device between the Mirror device and the holder required, which the The mirror device can be swiveled vertically upwards protruding axis of the holder when opening the driver or front passenger prevents door, so that the mirror device when opening the Do not open the door vertically as before using an articulated lever axis protruding at the top, but around the axis vertically projecting downwards Swivel axis of the holder is pivoted outwards.

This not only prevents the door against the spit gel device strikes, but it is also prevented that the mirror device against the curved windshield is pivoted.

However, the automatic swiveling in and out is no longer necessary device for the holder around its vertically projecting downward Swivel axis according to patent application P 37 08 935.8 or G 87 04 115.4 (FRG).

The automatically functioning swivel device enables in a conventional motor vehicle opening the front hood without the two mirror devices on the side only from Must be swung out and swings the mirror directions after the front hood is closed. Since the mirror devices are no longer in a SiKfz The swivel range of the front hood is only here as Luggage compartment lid is used, the front hood is also swung in  ten mirror devices can be folded up at any time, so that the Training and Swinging in the mirror devices is unnecessary.

The intended pivotability of a mirror device around the The vertical axis of the holder is now only then necessary if the lie below the mirror device ing part of the "front approach" of the vehicle interior must be cleaned.

For this purpose, the between the mirror device and the latching device attached to the holder is released or released be coupled so that the holder projects around its downward Swivel axis and thus also the mirror device by hand are pivotable, where then the mirror device in "Cleaning position" is located, that is, where its lower, in use area lying above the front attachment are cleaned can.

In the figures, Fig. 1 to 5 a safety motor vehicle 13 is provided with a curved about the pivot axis of a wiper strap from the viewing disk shown 26, wherein u in the figures Fig. 1, 2. 4 shows a mirror device 20 which is pivotably mounted on the driver's side of the vehicle in its various pivot positions, namely in the position of use, in the pivoted-out position with the driver door 103 open and in the "cleaning position".

For a mirror device on the passenger side In principle, the same precautions must be taken as for one Mirror device on the driver's side.

In Fig. 3 is an example between the Spiegeleinrich device and the holder 12 attached latching device 300 is provided, which causes the mirror device when opening the driver's door via an articulated lever 21 and the vertically downwardly pivoting axis 17 of the holder is pivoted outwards .

In Fig. 5, in comparison to the instinctive behavior of a peace-loving bull when braking on soft ground, the behavior of a SiKfz'es when braking on also slippery ground is shown, with the two sides attached to the SiKfz, swiveling between one Vehicle front part 260 and a vehicle interior 261 attached air springs 298 are depressurized so that a corresponding flexibility between the front part and the rear part of the safety device is ensured.

Fig. 1 shows a on the driver's side of a SiKfz'es 13 te mirror device 20 in the use position.

Fig. 2 shows a mirror device 20 in Ausschwenklage with an open driver's door 103rd

Fig. 3 shows according to section 3-3 of Fig. 2 in longitudinal section a between the mirror device 20 and the holder 12 brought, attached to the frame bottom 89 of the mirror device te locking device 300th

Fig. 4 shows a mirror device 20 in the "cleaning position".

Fig. 5 shows the behavior of SiKfz'es 13 when braking on slippery ground compared to a four-legged friend.

Fig. 1 shows a pivotally attached to a SiKfz 15 mirror device 20 in the use position with the driver's door 103 closed. Between the mirror device and a holder 12 , a locking device 300 is attached, which in the locked state establishes a positive connection between the mirror device and the holder and also in the unlocked state by a stop 306 against the holder prevents the mirror device from moving vertically after above-projecting axis 18 of the holder can be pivoted towards a curved windshield 26 provided on the SiKfz. The locking device is attached to the underside of the mirror device.

About the locking device and a vertically downwardly projecting pivot axis 17 of the holder 12 , the Spiegeleinrich device is now pivoted via an articulated lever 21 in a laterally attached to the front extension 293 of the vehicle interior 261 mounted bearing housing 19 and with the driver door 103 closed via the articulated lever shown in Position of use kept.

When opening the driver door pivotally mounted about an axis 105 , the mirror device is now pivoted outward about the articulated lever 21 about the vertically downwardly pivoting axis 17 of the holder 12 (see FIG. 2).

After the opening angle of, for example, 70 ° of the door (he position R , Fig. 2), the holder 12 is then in a latching position R , where a latching device is provided between the holder and its bearing housing 19 , so that the door is also is in a rest position.

After an opening angle of, for example, 80 ° of the door, the holder is in a stop position A , where a stop is formed between the holder and the bearing housing, which prevents the holder from swiveling out further, so that a stop for the door in its stop position is thus also achieved A is formed. The position designations G, R u. A for the door and the articulated lever 21 refer to the respectively applicable position of the holder in its position of use G , locking position R and stop position A.

Appropriately, the pivotability of the holder inward, viewed from the position of use G also be limited, in a prevented by the stop 306 of the locking device 300 pivot position, so that the Spiegelein direction does not immediately hit the curved windshield 26 when the stop 306 should be chipped off by external force.

The length of the articulated lever 21 is somewhat adjustable, with its joint heads forming the pivot axis being slidably displaceable to one another in the longitudinal direction of the lever via a resilient intermediate piece (not shown here) with a compression spring accommodated therein, so that a certain resilience of the mirror device on the outside The effect of force is sufficient and the door stop when the door 103 is swung out is somewhat damped in its stop position A (see FIG. 2).

The dotted lines show schematically in the direction of view "a" of a driver, not shown here, his gaze deflection via an insight mirror insert 1 and an outlook mirror insert 2 in the direction of travel "b" , and in the direction of view "a '" of the driver's sen gaze deflection via a rearview mirror 10 in the opposite direction of travel "c" .

On the outside of the rearview mirror in the same vertical longitudinal direction, an additional flashing light 221 is attached to indicate a change of direction.

A serving as a luggage compartment lid, pivotally mounted about a horizontal transverse axis 299 front hood 106 can be folded up at any time in front of a SiKfz even with pivoted mirror devices, so that the Aus u. Swinging in the mirror devices when opening the front hood is unnecessary.

The vehicle front part 260 of the SiKfz'es, together with the wheel suspension, can be pivoted downward about a transverse axis 263, which is only indicated by dash-dotted lines , on the front extension 293 of the vehicle interior 261 , the vehicle front part being spring-loaded via a shock-absorber spring unit 265, 266 and air springs 298 in Stop position is held or is pressed against a stroke 264 of the interior (see Fig. 5).

For the pressurization of the two air springs, an air pump 294 accommodated under the dashboard 297 is seen here, which can be actuated via a hand lever 295 . The lever is pivotally attached to a horizontally mounted drive shaft for actuating the air pump, the drive shaft being guided to the side of the dashboard.

The pivoting end of the lever 295 , which projects vertically upwards, is angled inwards just above the dashboard, which is drawn somewhat obliquely downwards here, and has a ball button or the like protruding vertically upwards via a pin screw, by means of which the air pump can be actuated by hand.

In the starting position shown, the lever is in a middle position, into which, after being actuated by Fe derkraft is automatically swung back again.

Here, its mode of operation is chosen so that when the lever is pivoted backwards in the direction of the arrow "+" air is pumped into the air springs and when the lever is pivoted forward in the direction of the arrow "-" the air is released again. While in the former case the swiveling process has to be repeated several times if necessary, the lever when releasing the air only has to be pressed forward against the pressure force of a return spring until the pressure is reduced accordingly, here a pressure gauge 296 attached to the dashboard shows the respective air pressure in the air springs. Instead of a manual control, a foot control can also be considered or a compressor can be used.

In order to be able to clean the part of the front extension 293 lying under the mirror device and the corresponding lower part of the mirror itself, the latching device 300 (see FIG. 3) must be released so that the holder with the driver's door closed from its position of use G can be swung out by hand in detent position R (see FIG. 4), where it is swung out in the "cleaning position" by the mirror device.

If necessary, the locking position R of the holder can also be moved further outwards, which is easily possible by enlarging the lever formed by the driver's door when pivoting out the mirror device, but the mirror device would then also correspondingly unload the vehicle in the appropriate cleaning position enlarge.

Since the front extension 293 is usually pulled downwards slightly towards the outside and is also rounded off at the transition to the lateral boundary, the accessibility should be sufficient when cleaning in the cleaning position shown.

Fig. 2 shows a, on a SiKfz 13 pivotally attached mirror device 20 in the pivoted position with the driver's door open. The driver's door is here after an assumed opening angle of 70 ° in a latching position R , where a latching device is effectively attached between the bracket 12 and its bearing housing 19 .

If necessary, the door can also be pivoted up to a pivoting position A , where a stop formed between the holder and its bearing housing after an opening angle of 80 ° assumed here limits the pivotability of the door to the outside, here the against the biasing force of a compression spring somewhat flexible trained lever 21 dampens the impact of the door accordingly.

Due to the fact that between the mirror device and the holder sam sam attached device 300 prevents that the mirror device when opening the door about the vertically upwardly projecting axis 18 of the holder is pivoted inwards against the curved windshield 26 , which in itself also the stop 306 attached to the underside of the mirror device against the outside of the holder is prevented if the latching device is released or defective. The stop 306 simultaneously forms a component of the locking device 300 and, in cooperation with the same, enables a positive connection between the Spiegelein device and the holder via the axis 18 (see FIG. 3).

Fig. 3 shows, according to section 3-3 of Fig. 2, a longitudinal section through a on the underside of the mirror device on the frame bottom 89 attached locking device 300th

In this case, a pawl 302 designed as a double-armed lever is provided in order to produce a positive connection between the mirror device and the holder 12 . For the purpose of mounting the pawl 302 , two stable bearing eyes 301 with corresponding holes for the mounting of a horizontally arranged axis 303 are formed on the underside of the frame bottom 89 , the axis being pivotally mounted in the two bearing eyes and being axially fixed.

Between the two bearing eyes, the pawl designed as a two-armed lever is now applied to the axle, the pawl being arranged at right angles to the holder and encompassing the holder on its underside with its inner pivoting end, while a compression spring 304 is effective on its outer pivoting end is arranged between the frame floor and the pawl.

The compression spring presses the outer pivoting end of the pawl downwards and via the axis 303 the inner pivoting end of the pawl.

The positive connection between the mirror device and the holder is now formed on the one hand by the stop 306 attached to the outside of the holder and on the other hand by a slightly spherically shaped end surface 307 formed on the inner pivot end of the pawl, the end face facing the inside of the holder is.

The inside of the holder is slightly beveled in the region of the crowned end surface 307 , in such a way that it forms a slightly downwardly facing contact surface for the outwardly facing end surface of the pawl.

Via the compression spring 304 , the pawl 302 is now pressed with its end face 307 against the bevelled inside of the holder, as a result of which the stop 306 is also pressed against the outside of the holder.

The stop 306 is designed as a bar and fastened on the inside of the two bearing eyes 301 .

At the outer swiveling end of the pawl, a ball knob 305 is now attached to its underside, which projects somewhat downwards via a stud screw.

By lifting the spherical button, the inner pivoting end of the pawl is pivoted downward about the axis 303 while simultaneously tightening the compression spring, so that the latching device is thus released and the mirror device can be pivoted outwards from its position of use into the cleaning position ( FIG. 4). . The driver door 103 must be closed.

For the re-engagement of the pawl a contact surface 308 is provided on the inside at its pivoting end so that the mirror device can also be brought back into a positive, play-free connection to the holder by simply pivoting against the holder.

It is also possible to latch the latch by opening the driver's door like that (see FIGS . 4 and 2).

Fig. 4 shows a pivotally attached to a SiKfz 13 mirror device 20 in the cleaning position with the driver's door 103 closed. By lifting the ball knob 305 , the pivotally mounted about the axis 303 , designed as a lever acting on both arms lever detached pawl 302 or released the positive connection between the mirror device and the holder, so that the Spiegeleinrich device via the ball knob from its position of use in Darge Cleaning position could be swung out.

The holder was pivoted from its position of use G into its locking position R.

When pivoting the mirror device in the cleaning position shown, the articulated lever 21 is pivoted out of its normal position G (see dash-dotted line) a little further out into the pivot position shown, and when pivoting the mirror device also the intended pivotability of the same about the vertically upwardly projecting axis 18 of the holder 12 is used.

The mirror device can also be pivoted a little further to the striking position A of the holder.

FIG. 5, a four-legged shows behavior of a counterfeit SiKfz'es during braking on slippery ground.

The both sides between the vehicle front part 260 and the vehicle interior 261 pivotally mounted air springs 298 have been depressurized, for example, when there is a risk of black ice, so that the vehicle front part here when braking the vehicle only against the biasing force of a suitably designed pressure spring 265 of a shock absorber spring unit 265, 266 was pivoted below about a transverse axis 263 against the vehicle interior.

By automatically lifting the transverse axis when braking th the rear wheels run slightly against the front wheels so that  the rear of the vehicle despite the thrust generated when braking Maintained the direction of travel against the front of the vehicle and did not dodge sideways (theory).

In addition, by lifting the transverse axis or the vehicle center of gravity is directed downwards, which corresponds to the lifting force Reactive force generated not only across the transverse axis the contact pressure of the front wheels against the road surface, but also the contact pressure of the rear wheels against the road and thus the Stability of the vehicle increased when braking.

A similar behavior can be observed in every four-legged friend, like in this example here with a bull when he is on sandy Soil, for example, starts from full speed to brake.

By increasing his center of gravity when braking, he increases the Pressure of his legs against the floor and leaves his rear Swivel part against its front part.

The bull is the only one here who instinctively makes sense full behavior provides a model that can be used here. Although he's already more dead than alive!

The air springs 298 are pivotally mounted in the vertical longitudinal planes on the one hand on the frame of the vehicle front part 260 and on the other hand on the frame of the vehicle interior 261 , the distance between the two pivot axes of an individual air cylinder from the transverse axis 263 being selected such that the required stroke of the cylinder when pivoting the Front part against the interior is kept within realizable limits.

The most favorable leverage ratio when attaching the air springs, namely distance transverse axis 263 - pivot axis driving front part of the vehicle in relation to the distance transverse axis 263 - pivot axis vehicle interior must first be determined.

The distance between the two symmetrically arranged air springs should be should not be chosen too large, so that the distribution of forces is favorable if an air spring should fail.

When the air springs are pressurized, the loading weight of the vehicle must also be taken into account, which supports the effect of the compression spring 265 and the air springs.

Of course, more than two air springs can be used, as with for example, three or four air springs are used the, where then an odd number expediently one Air cylinder should be arranged centrally to the SiKfz.  

With a larger number of air cylinders, the contact pressure of the front part of the vehicle against the stop 264 of the vehicle interior can then be varied in a correspondingly larger area, as a result of which the pretensioning force caused by the compression spring 265 can then be reduced to a required minimum, which meets traffic safety requirements .

So that the braking behavior of the SiKfz'es when leaking an air spring does not change too much and the air pressure in The other air springs are maintained, for example a pneumatic valve in front of each air spring attached that when the air springs are pressurized by that generated by an air pump or compressor Air pressure is opened via a control line and after the Pressurization automatically closes and is also closed remains if an air spring should leak.

There is a compression spring in the Ven for closing the valve til housed and / or another control line to the valve from the air spring provided, for example, a little smaller piston area of a piston housed in the valve for the valve actuation is pressurized while for the Opening the valve provides the larger piston area. It is then expedient for each air spring to have its own mano meter and its own valve for releasing the compressed air to provide the air springs via a common air discharge line, wherein a pressure equalization between the individual air springs is made possible by one ger air discharge cross section is provided and also the through let cross section of the air release valves kept correspondingly narrow is so that the pressure in the air springs does not pass too quickly air spring that has become leaky can drop.

In this or a similar way, the pressure should also air supply for shock absorbers with integrated air spring a front or rear suspension, if for the probably pressurized the air springs in pairs own compressors are used (see ADAC car adviser, Page 48).

But it is also conceivable that for each air spring a separate comm pressor is provided and pressurization via a back check valve.

Claims (8)

1. Safety motor vehicle with a downwardly pivotable vehicle front part and laterally mounted mirror devices, characterized in that between a pivotably downwardly about a transverse axis ( 263 ) on a vehicle interior ( 261 ) mounted vehicle front part ( 260 ) and the vehicle interior of a safety vehicle ( 13 ) on both sides of the same air springs ( 298 ) are effectively housed between the front part and the interior, the air springs are each pivotally mounted in the vertical longitudinal plane on the one hand on the frame of the front part and on the other hand on the frame of the interior and the effect of the compression spring ( 265 ) support an already provided shock absorber spring unit ( 265, 266 ) ( Fig. 5). 2. Safety motor vehicle according to claim 1, characterized in that for the pressurization of the air springs ( 298 ) an actuatable from the driver's seat air pump ( 294 ) or a compressor, and pneumatically or mechanically actuated, with means of spring pressure and / or air pressure automatically or mechanically Closing valves and for releasing the compressed air from the air springs from the driver's seat valves with a common, cross-sectionally restricted Luftab are provided and that at least one pressure gauge ( 296 ) is provided for the pressure display in the air springs. 3. Safety motor vehicle according to claim 1, characterized in that between a pivotally mounted on a SiKfz ( 13 ) mounted mirror device ( 20 ) and a holder ( 12 ) for their pivot mounting a device attached to the underside of the Spiegeleinrich, conventional latching device ( 300 ) hen hen is, with the locking device a positive connection between the mirror device and the holder can be produced by the locking device preventing the pivoting of the mirror device about a vertically upwardly projecting axis ( 18 ) of the holder, so that the mirror device when opening a driver's door ( 103 ) can be swiveled outward about a vertically downwardly pivoting axis ( 17 ) of the holder by means of an articulated lever ( 21 ) which can be pivotally fastened between the door and the mirror device, the holder, via its downwardly projecting pivot axis, in a side on a front Approach ( 293 ) of the vehicle interior ( 261 ) attached bearing housing ( 19 ) is pivotally mounted ( Fig. 1 u. 2). 4. Security motor vehicle according to claim 3, characterized in that outside of the holder ( 12 ) of the mirror device ( 20 ) on the underside of the mirror device, a stop ( 306 ) against the holder on the frame bottom ( 89 ) is attached, the stop being the pivotability of the Mirror device around the vertically upwardly projecting axis ( 18 ) of the holder inwards against a curved windshield ( 26 ) attached to the SiKfz and is attached so that the mirror device in the stop position formed by the stop against the holder in a position of use (G) of the holder is also in the position of use and that the stop at the same time as part of the latching device ( 300 ) in cooperation with the same form-fitting connection between the mirror device and the holder on the storage of the mirror device to the vertically upward Axis of the holder allows ( Fig. 1 and 3). 5. Security vehicle according to claim 3 u. 4, characterized in that between the pivotally via its downwardly pivoting axis ( 17 ) in the bearing housing ( 19 ) mounted holder ( 12 ) of the mirror device ( 20 ) and the bearing housing, a conventional snap-in device is brought into the latching position (R) of the stop , wherein the latching position of the holder corresponds to a conventional latching position (R) of the driver's door ( 103 ) and that the pivotability of the holder to the outside in a stop position (A) of the holder is limited by a conventional stop device provided between the holder and the bearing housing , wherein the stop position of the holder corresponds to a usual stop position (A) of the driver's door and that expediently by the same stop device the pivotability of the holder inwardly in a by the on the underside of the mirror device stop ( 306 ) against the holder practically prevented Swivel position of the holder is limited and even before the Sp The sealing device, theoretically considered, would strike against the curved windshield ( 26 ) of the SiKfz'es with the driver's door closed ( Fig. 2 and 1). 6. Security vehicle according to claim 3 u. 4, characterized in that between the mirror device ( 20 ) and its Hal ter ( 12 ) provided latching device ( 300 ) is formed by a designed as a double-acting lever, pivotable about an axis ( 303 ) pawl ( 302 ), the Jack between two outside of the holder on the frame bottom ( 89 ) of the mirror device molded bearing eyes ( 301 ) is ge and the holder in the stop position to a fixed to the bearing eyes stop ( 306 ) with its inner pivoting end by the inner pivoting end at a right angle arranged to the holder pawl one of the inside of the holder facing, slightly spherical end face ( 307 ) and the end face via a at the outer pivoting end of the pawl effectively between the frame bottom and the pawl pressure spring ( 304 ) up against a in the area of Face is slightly chamfered inside of the holder pressed and that on the sub On the side of the outer pivot end of the pawl, a ball button ( 305 ) or the like protruding downwards via a stud screw is fastened for the actuation of the pawl and that for the latching of the pawl a contact surface ( 308 ) is integrally formed on the end face on the inner pivot end of the pawl ( Fig. 3). 7. A security motor vehicle according to claim 3, characterized in that the joint heads of the articulated lever ( 21 ) pivotably fastened between the driver's door ( 103 ) and the mirror device ( 20 ) can be displaced somewhat with respect to one another against the pretensioning force of a compression spring in the longitudinal direction of the articulated lever are stored. 8. Safety motor vehicle according to claim 1, characterized in that more than two air springs ( 298 ), such as three or four air springs, are effectively housed between the front part of the vehicle ( 260 ) and the vehicle interior ( 261 ), with an air cylinder having an odd number is arranged for SiKfz ( 13 ).