EP3492657B1 - Marking machine for creating marking lines on road surfaces - Google Patents

Description

The invention relates to a marking machine for producing marking lines from flowable marking material on traffic areas, such as roads, with a chassis and with at least one extruder which can be guided over the area to be marked, the extruder having at least one outlet opening which is arranged by at least one marking material container arranged on the chassis can be supplied with the marking material by means of at least one marking material pump through at least one marking material line, and the position of the extruder can be adjusted transversely to a direction of travel of the marking machine.

From the DE 10 2010 003 142 A1 is a marking machine for producing marking lines from marking material on traffic areas, such as roads, with an extruder which can be guided over the area to be marked and which has at least one outlet opening that can be supplied with the marking material by a marking material pump from a marking material container through a marking material line and the other with the rest Marking machine and connected to the marking material container by means of a swivel arm and is adjustable transversely to a direction of travel of the marking machine. The extruder on the swivel arm can be pivoted between a position lying on a left side of the marking machine and a position on a right side of the marking machine, in each case outside a lateral contour of the other marking machine. The axis about which the swivel arm can be pivoted runs either horizontally in the longitudinal direction of the marking machine or alternatively vertically, in each case preferably in the vertical longitudinal center plane of the marking machine.

It has been found to be disadvantageous in the known marking machine that the connection which is necessarily articulated here over a large angular range the swivel arm and the marking material container represent a relatively high flow resistance for the marking material, which requires a correspondingly high pump output in order to ensure a fast marking process or which otherwise leads to limitation of the marking speed. In addition, with a horizontal swivel axis, the handling of the marking machine when swiveling the swivel arm with the extruder is difficult because the extruder must be moved overhead and manually rotated and aligned in its raised position. In the case of a vertical swivel axis provided alternatively in the known marking machine, the swivel arm on the underside of the marking material container must be connected to the latter so that the necessary swivel angle is made possible; however, this means that there is no space under the marking material container, e.g. B. there to accommodate a burner and a combustion chamber for heating hot marking material to be processed, or that the marking material container must be arranged accordingly higher, but this comes at the expense of driving stability and tipping safety of the marking machine.

The object of the present invention is therefore to create a marking machine of the type mentioned at the outset which avoids the disadvantages mentioned and in which, in particular when conveying the marking material from the marking material container to the outlet of the extruder, there is little flow resistance and simplifies its handling for the operating personnel is.

The object is achieved according to the invention with a marking machine of the type mentioned at the outset, which is characterized in that the marking material container is mounted on the chassis such that it can be rotated about a vertical axis of rotation, and that the marking material line and the extruder as a unit together with the marking material container the chassis are rotatable.

With the invention, it is advantageously achieved that the marking material line and the extruder always maintain their position relative to the marking material container, which enables inexpensive, less articulated or flexible elements in the line and thus low-resistance line design and line routing between the marking material container and extruder. In addition, the Marking machine according to the invention simplifies handling because for an adjustment of the position of the extruder relative to the rest of the marking machine, the extruder and the marking material line only need to be raised a little and can then be moved together with the marking material container by rotating it around its vertical axis of rotation into a desired new position.

In order to be able to produce marking lines with the marking machine in the largest possible area relative to the longitudinal center axis of the marking machine, it is further provided that the unit comprising the marking material container, the marking material line and the extruder can be rotated by up to 180 ° about the vertical axis of rotation. The range of rotation angles is expediently symmetrical to the longitudinal central axis of the marking machine, i.e. H. that the unit consisting of the marking material container, the marking material line and the extruder can be rotated through 90 ° on both sides from a central position in which the extruder lies on the longitudinal central axis of the marking machine.

It is further preferably provided that the marking material line connecting the marking material container to the extruder is arranged in an intermediate space between an underside of the chassis of the marking machine and the traffic area to be marked, and that the extruder, viewed in the direction of travel of the marking machine, between one on a left side of the marking machine and one on the right side of the marking machine is adjustable outside a lateral contour of the rest of the marking machine. The extruder can assume any intermediate positions between these extreme positions. If the marking material container, viewed in the longitudinal direction of the marking machine, is arranged between a front and a rear axle of the chassis, which makes sense for weight reasons, only positions in which a generated marking line would lie in the area of a bearing surface of wheels of the marking machine on the traffic area are excluded .

In order to optimally utilize the space available on the chassis and the width of the marking machine that is permissible for driving on public roads outside of marking inserts, the invention proposes that the marking material container essentially has the shape of a standing cylinder and that the vertical axis of rotation along the vertical central axis of the marking material container runs. When the marking material container is rotated, its outer circumference therefore advantageously remains on a constant line. The marking material container expediently has the maximum possible and permissible outer diameter and a maximum possible and permissible height in order to be able to carry as much marking material as possible in the sense of a long, uninterrupted marking operation.

For the purpose of a secure and smooth rotation, the marking material container is expediently arranged on or in a rotary bearing which is arranged between the marking material container and the chassis. If the pivot bearing is designed accordingly, the marking material container can be rotated, but cannot tip over, connected to the chassis. In addition, there is the possibility to replace the marking material container for itself with little effort if necessary.

In order to relieve the operating personnel of the marking machine from heavy activities when handling the marking machine, a rotary drive, preferably a hydraulic or compressed air or electric motor, is expediently provided for rotating the marking material container.

So that the marking lines generated with the marking machine are as exact as possible, the unit consisting of the marking material container, the marking material line and the extruder can preferably be locked relative to the chassis by means of a locking device in any rotational position, or in different steps. An undesired and annoying automatic adjustment of the position of the unit consisting of the marking material container, marking material line and extruder relative to the rest of the marking machine is thus ruled out.

A further embodiment of the marking machine provides that the marking material line is also designed as a support arm for the extruder. In this embodiment, the marking material line advantageously has two functions, which advantageously keeps the expenditure on individual parts of the marking machine low.

In a further development of the marking machine, the marking material line designed as a support arm for the extruder is by means of a swivel or swivel joint connected to the marking material container so as to be pivotable about a horizontal axis of rotation or swivel axis running transversely to the longitudinal direction of the marking material line. With this, the extruder can be raised and lowered in a technically simple manner at the outer end of the marking material line, which is remote from the container, relative to the rest of the marking machine and relative to the traffic area.

In order to be able to align the extruder appropriately relative to the traffic area to be marked, irrespective of its position relative to the rest of the marking machine, it is provided according to the invention that the extruder can be rotated by at least 180 ° about an axis vertical in its marking position, with an extruder-side end serving as a support arm Marking material line designed for the extruder is connected. The extruder is also expediently lockable in the desired, set rotational positions relative to the marking material line.

Because traffic areas to be marked are often not exactly flat and smooth, the invention provides that the extruder has rollers and that in a marking position of the extruder, the marking material line designed as a support arm for the extruder is free in the vertical direction around the horizontal axis of rotation or pivoting is rotatable or pivotable and roll the rollers on the traffic area to be marked. The extruder can thus automatically and precisely follow the course of the traffic area to be provided with the marking line, which ensures exact and uniformly wide marking lines.

A further measure to relieve the operating personnel of the marking machine is that the marking material line, which is designed as a support arm for the extruder, can preferably be lifted together with the extruder by means of a lifting drive from the marking position into a rest position in which the extruder is at a vertical distance from the traffic area vice versa. For this purpose, for example, at least one pneumatic or hydraulic cylinder which directly generates the lifting movement or alternatively a cable pull or lever arrangement which can be actuated by at least one pneumatic or hydraulic cylinder can be provided.

So that the extruder rolling on the traffic area to be marked by means of its rollers can also easily follow changing inclinations of the traffic area, it is further proposed that an extruder-side end be used as a support arm marking material line designed for the extruder and the extruder are connected to one another via a ball joint.

It is further provided for the marking machine according to the invention that the marking material pump is integrated in the marking material line. In this way, a particularly space-saving design is achieved, which is fundamentally advantageous for a mobile marking machine.

The marking material pump can be integrated into the marking material line particularly easily and inexpensively if, as is preferably provided according to the invention, the marking material pump is a screw pump and a screw conveyor of the marking material pump is arranged in the marking material line.

Depending on the weight of the extruder and the dynamic loads acting on it when moving the marking machine, it may be expedient that, in addition to the marking material line designed as a support arm for the extruder, the extruder by means of a connection that only mechanically connects it to the marking material container, relative to the marking material container same axis as the marking material line is held pivotable separate holding frame.

In an alternative embodiment of the marking machine, it is provided that the marking material line is designed as an articulated or flexible line with no load-bearing functions and that the extruder is held on a separate holding frame that only mechanically connects it to the marking material container and can be pivoted relative to the marking material container about the same axis as the marking material line .

In a further embodiment of the marking machine it is provided that a second marking material line is connected to the marking material container with a second extruder at its free end. For example, two marking lines can be applied in parallel.

For the marking machine with two extruders, however, it is preferably provided that the second extruder in series, when viewed in the direction of travel of the marking machine is arranged with the first extruder. This creates the possibility of creating a special marking line in two application stages, such as. B. first a smooth marking line with the first extruder and then marking material points placed on it with the second extruder.

In the marking machine according to the invention, an outlet of the marking material container connected to the marking material line can advantageously be arranged laterally in the lower container area, which means both good ground clearance, a safe low center of gravity of the marking machine and a relatively low filling height for the marking material and also a large space for accommodating an optionally necessary heating device, such as burner with combustion chamber and heating jacket, for the marking material in the marking material container.

If the marking machine is to be operated with two-component marking material, the inside of the marking material container can be divided into two container sections, which then each hold one component of the marking material. A separate pump and a separate marking material line are then expediently assigned to the container departments. The marking material lines then both run to the extruder, which in this embodiment of the marking machine expediently additionally has a mixer upstream of the outlet opening for the components of the marking material.

Figur 1

eine Markiermaschine in Seitenansicht, teils im Vertikalschnitt,

Figur 2

die Markiermaschine aus Figur 1 in einer ersten Betriebsstellung, in Draufsicht,

Figur 3

die Markiermaschine aus Figur 1 in einer zweiten Betriebsstellung, in Draufsicht,

Figur 4

eine aus einem Markierungsmaterialbehälter, einer Markierungsmaterialpumpe, einer Markierungsmaterialleitung und einem Extruder bestehende Baueinheit der Markiermaschine nach den Figuren 1 bis 3, in einer Ansicht schräg von oben,

Figur 5

die Baueinheit aus Figur 4 in Seitenansicht auf die die Markierungsmaterialleitung aufweisende Seite,

Figur 6

die Baueinheit aus Figur 4 in Draufsicht,

Figur 7

einen Teil der Markierungsmaterialleitung und den Extruder der Baueinheit nach Figur 4 bis 6, in einem Vertikalschnitt,

Figur 8

den Markierungsmaterialbehälter mit seinem Drehlager und einem Ausschnitt des Fahrgestells, in einem vertikalen Schnitt durch die vertikale Drehachse,

Figur 9

die Baueinheit aus Figur 4 in Ansicht schräg von oben auf die von der Markierungsmaterialleitung abgewandte Seite und

Figur 10

die Baueinheit aus Figur 9 in Seitenansicht.

An exemplary embodiment of the invention is explained below with reference to a drawing. The figures in the drawing show:

Figure 1

a marking machine in side view, partly in vertical section,

Figure 2

the marking machine Figure 1 in a first operating position, in top view,

Figure 3

the marking machine Figure 1 in a second operating position, in plan view,

Figure 4

one consisting of a marking material container, a marking material pump, a marking material line and an extruder Unit of the marking machine according to the Figures 1 to 3 , diagonally from above,

Figure 5

the unit Figure 4 in side view of the side having the marking material line,

Figure 6

the unit Figure 4 in top view,

Figure 7

part of the marking material line and the extruder of the assembly Figure 4 to 6 , in a vertical section,

Figure 8

the marking material container with its pivot bearing and a section of the chassis, in a vertical section through the vertical axis of rotation,

Figure 9

the unit Figure 4 in an oblique view from above onto the side facing away from the marking material line and

Figure 10

the unit Figure 9 in side view.

In the following description of the figures, the same parts in the various drawing figures are always provided with the same reference numerals, so that all reference numerals do not have to be explained again for each drawing figure.

Figure 1 the drawing shows a marking machine 1 according to the invention in side view, partly in vertical section. The marking machine 1 has a frame-shaped chassis 10 with two rear wheels 11 and two steerable front wheels 11 'and a drive unit 16 arranged at the rear of the marking machine 1. By means of this drive unit 16, the marking machine 1 is on a traffic area 5 on which marking lines 50 are to be attached, movable. A driver station 17 for a driver and operator of the marking machine 1 is arranged in front of the drive unit 16, from which the marking machine 1 is steered in operation via a steering 18.

On the front part of the chassis 10, a standing cylindrical marker material container 12 is arranged, the lower part with a reduced Diameter protrudes downwards through the chassis 10 into an intermediate space between the underside of the chassis 10 and the traffic area 5. In its lower region, the marking material container 12 is connected to an approximately tangentially departing marking material line 2, through which marking material can be guided from the marking material container 12 to an extruder 4 which is moved over the traffic area 5 and is arranged at the outer end 22 of the marking material line 2.

The extruder 4 has on its underside a slot-shaped outlet opening 41 through which the marking material is applied to the traffic area 5 in order to form the marking line 50. The outlet opening 41 can be opened and closed, if necessary, by means of elements known per se, not visible here, such as slides.

On and in a part of the marking material line 2 near the container, a marking material pump 3 is arranged, which comprises a screw conveyor 31 located within the marking material line 2 and a pump motor 32 connected to it and arranged outside the marking material line 2.

It is essential in the marking machine 1 that the marking material container 12 can be rotated together with the marking material line 2 and the marking material pump 3 and the extruder 4 as a unit about a vertical axis of rotation 13 relative to the rest of the marking machine 1. For this purpose, the marking material container 12 is arranged on or in a rotary bearing 29 which is arranged between the marking material container 12 and the chassis 10. In this way, the marking material container 12 can be rotated about the vertical axis of rotation 13, but is tilt-proof, connected to the chassis 10. In this way, the extruder 4 can be adjusted relative to the remaining marking machine 1 in a direction transverse to its direction of travel 15 in order to be able to bring out a marking line 50 in different positions relative to the marking machine 1.

A rotary drive 28 arranged at the front end of the chassis 10, for example a hydraulic or compressed air or electric motor, is used to turn the marking material container 12 and the other aforementioned components connected to it.

In order to be able to guide the extruder 4 at a suitable distance from the traffic area 5 to be provided with a marking line 50, the extruder 4 has a pair of rollers 42 which roll on the traffic area 5 in the marking operation of the marking machine 1.

Furthermore, the extruder 4 is movably connected to the extruder-side end 22 of the marking material line 2, in particular rotatable about a vertical axis of rotation 40, in order for it to be correct in every position of rotation of the marking material container 12 with the associated components, that is to say with the axis of rotation of the rollers 42 running transverse to the direction of travel 15 to be able to align.

In addition, the marking material line 2 is connected at its container-side end 21 to the marking material container 12 so as to be pivotable about a horizontal axis extending transversely to the longitudinal direction of the marking material line 2, in order to be able to change the height of the extruder 4, in particular to adapt to uneven traffic areas 5. In addition, so the extruder 4, preferably with one in the Figure 1 not visible lifting device, raised upwards and removed from the traffic area 5 when the marking machine 1 is moved without marking operation.

As the Figure 1 illustrated, the marking material container 12 has a favorable deep position in the chassis 10, which benefits the driving stability of the marking machine 1. In addition, the space between the underside of the chassis 10 and the traffic area 5 offers sufficient space for accommodating, if necessary, a heating device attached to the lower part of the marking material container 12, such as burners with a combustion chamber, if thermoplastic marking material is to be processed.

Figure 2 shows the marking machine 1 Figure 1 in a first operating position in plan view, in which case the marking material container 12, the marking material line 2 and extruder 4 assume a first rotational position about the vertical axis of rotation 13, in which a marking line 50 is generated on the right outside of a right lateral contour 14r of the non-rotatable part of the marking machine 1 becomes.

Next is in Figure 2 It can be seen that, in the exemplary embodiment shown, the extruder 4 is carried in addition to the marking material line 2 via a separate holding frame 26 which runs from the marking material container 12 to the extruder 4 in order to increase the mechanical stability of the arrangement.

The extruder 4 is oriented relative to the marking material line 2 and the separate holding arm 26 in such a way that the axis of rotation of the rollers 42 of the extruder 4 runs exactly transverse to the direction of travel 15 of the marking machine 1. The contact and rolling of the rollers 42 on the traffic area 5 is expediently effected solely by the weight of the extruder 4 and the marking material line 2 connected to it, as long as no force lifting the extruder 4 and the marking material line 2 from the traffic area 5, for example the lifting device mentioned above , is applied. It is also possible to apply a force, such as spring force, to the extruder 4 to preload it in the direction of the traffic surface 5.

With regard to the other in Figure 2 visible details of the marking machine 1 is based on the description of the Figure 1 referred.

Figure 3 shows the marking machine 1 Figure 1 in a second operating position in plan view, here the unit consisting of the marking material container 12, the marking material line 2 and the extruder 4 assumes a second rotational position about the vertical axis of rotation 13, in which on the left outside of a left side contour 14l of the non-rotatable part of the marking machine 1 a marking line 50 is generated.

The extruder 4 is here again aligned by rotating about its vertical axis of rotation relative to the marking material line 2 such that the axis of rotation of the rollers 42 of the extruder 4 runs exactly transverse to the direction of travel 15 of the marking machine 1.

Except for the two in the Figures 2 and 3rd Twist positions shown by way of example, the unit consisting of marking material container 12, marking material line 2 and extruder 4 can also assume further positions, which are either further away from the lateral contours 14r, 14l or which lie in a region between the rear wheels 11, 11 'of the marking machine 1. The only exceptions are Positions of the extruder 4, which would produce a marking line 50, which would be run over by the rear wheels 11, 11 'when the marking machine 1 was moving in its direction of travel 15.

As the Figures 1 to 3 show, the marking material container 12 has the shape of a standing cylinder, the outer diameter of which is so large that it closes with the lateral contours 14r, 14l of the non-rotatable part of the marking machine 1. The width of the marking machine 1 is thus optimally utilized in order to be able to carry as large a supply of marking material as possible in the marking material container 12.

Like a comparison of the Figures 2 and 3rd shows, the steering 18 can be adjusted to the left and right so that the driver of the marking machine 1 can always sit in the driver's seat 17, which is closest to the extruder 4 and the generated marking line 50, in order to be able to observe them well during the marking operation.

With regard to the other in Figure 3 visible details of the marking machine 1 is based on the description of the Figures 1 and 2nd referred.

Figure 4 shows the consisting of the marking material container 12, the marking material pump 3, the marking material line 2 and the extruder 4 unit of the marking machine according to the Figures 1 to 3 , in an oblique view from above. In the Figure 4 visible assembly of the parts mentioned is in total and as a whole about the vertical axis of rotation 13 relative to the rest, in Figure 4 Marking machine, not shown, and its chassis can be rotated.

To fill the marking material container 12 with marking material, the latter has one or more removable or adjustable lids on the upper side, as is known per se. The interior of the marking material container 12 can form a uniform large space or alternatively can be divided into two or more chambers, depending on whether one-component or multi-component marking material is to be processed.

In its lower part, the marking material container 12 has a reduced diameter and lies with this part within a U frame which is connected in a fixed position to the marking material container 12 and lies in a horizontal plane 27. On this lower part of the marking material container 12 there is a lateral pipe connection 12 ', to which the container-side end 21 of the marking material line 2 is connected. The connection is designed as a swivel or swivel joint 23, the swivel or swivel axis 23 'of which runs radially to the marking material container 12 and perpendicular to the marking material line 2 in a horizontal direction.

The pump motor 32 of the marking material pump 3 is visible axially outside the end 21 of the marking material line 2 on the container side. The screw conveyor is not visible here inside the marking material line 2.

With the other end 22 of the marking material line 2, the extruder 4 is connected via a ball joint 24 which, in addition to a rotary movement about a vertical axis, also allows smaller pivoting movements about any horizontal axes. In this way, the extruder 4 can always adapt to the course of the traffic area to be provided with a marking line such that its two rollers 42 remain in constant contact with the traffic area.

Behind the extruder-side end 22 of the marking material line 2, the holding frame 26 is partially recognizable, which can be pivoted in the same direction as the marking material line 2 in order to enable the height of the extruder 4 to be moved.

The holding frame 26 lies below the U-frame 27 and can be pivoted about a transverse axis coinciding with the axis of rotation or pivoting 23 'of the marking material line 2 relative to the U-frame 27 and the marking material container 12 in order to move the extruder 4 if necessary Lift off traffic area 5. For this purpose, a cable pull arrangement is used, each with a cable 19 and a deflection roller 19 ′, which are symmetrical on both sides of the marking material container 12. A first end of the ropes 19 is fixed to the U-frame 27. The rope 19 then runs over the deflection roller 19 ′ attached to the holding frame 26. By means of a tensile force source, such as pneumatic or hydraulic cylinders, acting on the other ends of the cables 19, which are concealed here, the holding frame 26 can be pivoted upward by pulling on the cables 19 and the extruder 4 can thus be raised.

Figure 5 shows the unit Figure 4 in side view. It can be seen particularly clearly here that the marking material container 12 has a larger diameter in its upper part and a smaller diameter in its lower part. The container-side end 21 of the marking material line 2 with the marking material pump 3 connects to the lower part of the marking material container 12 with the smaller diameter. The marking material line 2 runs from there to the extruder 4. The latter is articulated via the ball joint 24 to the extruder-side end 22 of the marking material line 2, so that the extruder 4 can be rotated about the vertical axis of rotation 40 relative to the marking material line 2 and can also be pivoted about any horizontal axes .

Figure 6 shows the unit Figure 4 in plan view, here again the round outline shape of the marking material container 12 becomes clear.

With regard to the other in Figure 6 Details presented are based on the preceding description, in particular the Figures 4 and 5 , referred.

Figure 7 shows an extruder-side part of the marking material line 2 and the extruder 4 of the assembly according to the Figures 4 to 6 , in a vertical section. The marking material line 2 is designed as a rectangular hollow profile and forms a channel for the passage of marking material in the direction of the extruder 4.

The extruder 4 is connected to the extruder-side end 22 of the marking material line 2 via the ball joint 24, which forms a flow passage from the extruder-side end 22 of the marking material line 2 into the interior of the extruder 4. Due to the construction of the ball joint 24, the extruder 4 can be rotated relative to the extruder-side end 22 of the marking material line 2 about the vertical axis of rotation 40 shown and additionally pivotable about any horizontal axes to a limited extent, but sufficient to adapt to the course of the traffic area 5.

The extruder 4 has on its underside the slot-shaped outlet opening 41, through which the marking material exits during the marking operation of the marking machine and reaches the traffic area 5 as a marking line 50. The desired vertical distance between the outlet opening 41 of the extruder 40 and the traffic area 5 becomes given by the rollers 42 mounted on the extruder 4, one of which is visible in the background.

As is known per se, the outlet opening 41 can be assigned an adjustable closure slide, which is not shown here, in order to be able to release and block a flow of the marking material through the outlet opening 41 quickly and cleanly. Also, as is also known per se, the length of the slot forming the outlet opening 41, e.g. B. can be changed by one or more other sliders to be able to vary the width of the marking line generated.

Figure 8 shows the marking material container 12 with its pivot bearing 29 and a section of the chassis 10, in a vertical section through the vertical axis of rotation 13 of the marking material container 12. Here it can be seen again that the marking material container 12 has an upper part with a larger diameter and a lower part with a smaller diameter Has. In addition, here a heating material 25 'with a burner 25 is shown, which surrounds the marking material container 12 on the underside and on the circumference and which follows the shape of the marking material container 12 at a distance, in order to heat the marking material to be processed in the marking material container 12.

With a downward-facing surface of the marking material container 12 or its heating jacket 25 ', the marking material container 12 lies relatively on the pivot bearing 29 attached to the chassis 10, which rotates the marking material container 12 together with the marking material line and the extruder, both of which are not visible here to the chassis 10 and the other marking machine 1.

The pivot bearing 29 is here formed by two rings arranged horizontally and concentrically to one another with balls lying between them, that is to say by a large ball bearing, the one ring of the pivot bearing 29 here with the interposition of a stabilizing metal ring 27 ′ with the surface of the heating jacket 25 ′ pointing downward. and the other ring of the pivot bearing 29 is connected to the chassis 10. The marking material container 12 is rotatable, but tilt-proof, connected to the chassis 10 by means of the pivot bearing 29.

Alternative designs of the pivot bearing 29 are possible, e.g. B. Rollers with radial axes of rotation or sliding surfaces made of low-friction materials such as PTFE.

In Figure 8 Clearly visible under the marking material container 12 is sufficient space for accommodating the heating jacket 25 'and the associated burner 25 without the free distance from the traffic area 5 becoming too small.

Figure 9 shows the unit Figure 4 in an oblique view from above onto the side facing away from the marking material line 2, in a functional position with the extruder 4 raised.

With its lower part, which has the smaller diameter, the marking material container 12 protrudes into the horizontally oriented U-frame 27 which is fixedly connected to the marking material container 12.

Under the U-frame 27 is the holding frame 26, which also has the basic shape of a lying U, from which an arm-shaped frame part extending in the middle to the extruder-side end 22 of the marking material line 2 and to the extruder 4 also extends. This holding frame 26 is mounted on the lower part of the marking material container 12 near the free end of its two U-legs pivotable about the axis of rotation or pivoting 23 '.

To the free, in Figure 9 On the left end of the two U-legs of the holding frame 26, a pneumatic cylinder 19 "is attached as a power drive, the piston rod of which projects into the interior of the associated U-leg, which is designed as a rectangular tube. Below a transverse part of the U-frame 27 are on the holding frame 26 the two deflection rollers 19 'are mounted. A rope 19 runs over each of the deflection rollers 19', one end of which is attached to the piston rod of the associated pneumatic cylinder 19 "and the other end of which is attached to the U-frame 27.

When the piston rod of the pneumatic cylinder 19 'is retracted, a tensile force is exerted on the cable 19, which leads to the fact that the holding frame 26 together with the extruder 4 and the marking material line 2 is pivoted upward about the axis of rotation or pivoting 23'. The extruder 4 is thus lifted from a traffic area and can then be rotated through the entire Figure 9 shown unit relative to the rest, in Figure 9 Marking machine, not shown, can be pivoted sideways.

To lower the extruder 4, the piston rod of the pneumatic cylinder 19 'is extended.

In the marking operation, the pneumatic cylinder 19 'is expediently depressurized and the extruder 4 then runs on the traffic area due to its weight by means of its rollers 42 and follows it.

Figure 10 shows the unit Figure 9 in side view in the same functional position as in Figure 9 is shown. Right in Figure 10 the extruder 4 can be seen, which is connected to the marking material line 2 for supplying marking material. Furthermore, the extruder 4 is connected to the marking material container 12 via the holding frame 26 so as to be pivotable about the axis 23 '. The cylinder 19 "is used for pivoting in cooperation with the cable 19 and the deflection roller 19 ', as already described above.

The U-frame 27 located above the holding frame 26 is fixedly connected to the lower part of the marking material container 12. At the in Figure 10 A second pipe connection 12 ″, which is closed with a flange, is provided here for the side of the marking material container 12 facing the viewer. Instead of the flange, a second marking material line can be connected here with a second extruder.

With regard to the other in Figure 10 illustrated parts is based on the description of the previous figures, in particular the Figure 9 , referred. <u> List of reference symbols: </u> character designation 1 Marking machine 10th chassis 11, 11 ' Rear wheels, front wheels 12th Marking material container 12 ' Pipe connection to 12 for 2 12 " second pipe connection 13 vertical axis of rotation of 12 14r, 14l right, left side contour of 1 15 Direction of travel from 1 16 Drive unit 17th Driver's seat 18th steering 19th rope 19 ' Pulleys 19 " cylinder 2nd Marking material line 21 container-side end of 2 22 extruder side end of 2 23 Swivel or swivel joint between 12 and 21 23 ' Rotation or swivel axis from 23 24th Ball joint between 22 and 4 25th burner 25 ' Heating jacket 26 Holding frame 27 U frame 27 ' Metal ring 28 Rotary drive 29 Pivot bearing 3rd Marking material pump 31 Auger 32 Pump motor 4th Extruder 40 vertical axis of rotation of 4 41 Outlet opening 42 Castors 5 traffic area 50 Marking line

Claims (19)

1. Marking machine (1) for creating marking lines (50) of fluid marking material on traffic surfaces (5) such as roads, comprising a chassis (10) and at least one extruder (4) to be guided over the surface (5) to be marked, said extruder (4) having at least one outlet orifice (41) supplied with the marking material by a marking material pump (3) from at least one marking material container (12) arranged on the chassis (10), through at least one marking material duct (2), with the extruder (4) being adjustable in its position transversely to a direction of movement (15) of the marking machine (1),
   characterised in that
   the marking material container (12) is mounted on the chassis (10) for rotary movement around a vertical axis of rotation (13) relative to the chassis (10) and that the marking material conduit (2) and the extruder (4) together with the marking material container (12) are rotatable as a unit relative to the chassis (10).
2. The marking machine according to claim 1, characterised in that the unit consisting of the marking material container (12), the marking material conduit (2), and the extruder (4) is capable of being rotated by up to 180° about the vertical axis of rotation (13).
3. The marking machine according to claim 1 or 2, characterised in that the marking material conduit (2) connecting the marking material container (12) to the extruder (4) is arranged in an intermediate space between a lower side of the chassis (10) and the traffic surface (5) to be marked and that viewed in the direction of movement (15) of the marking machine (1) the extruder (4) is adjustable between a left side of the marking machine (1) and a right side of the marking machine (1), in each case in a position lying outside of a lateral contour (14r, 141) of the rest of the marking machine (1).
4. The marking machine according to one of claims 1 to 3, characterised in that the marking material container (12) is essentially in the shape of an upright cylinder and that the vertical axis of rotation (13) extends along the central vertical axis of the marking material container (12).
5. The marking machine according to one of claims 1 to 4, characterised in that the marking material container (12) is arranged on or in a pivot bearing (29) situated between the marking material container (12) and the chassis (10).
6. The marking machine according to one of claims 1 to 5, characterised in that a rotary drive (28), preferably a hydraulic, pneumatic, or electric motor, is provided to rotate the marking material container (12).
7. The marking machine according to one of claims 1 to 6, characterised in that the unit consisting of the marking material container (12), the marking material conduit (2), and the extruder (4) is capable of being locked continuously in any rotary position or in increments of specific pre-given rotary positions relative to the chassis (10).
8. The marking machine according to one of claims 1 to 7, characterised in that the marking material conduit (2) serves simultaneously as a support arm for the extruder (4).
9. The marking machine according to claim 8, characterised in that the marking material conduit (2) designed as a support arm for the extruder (4) is connected to the marking material container (12) by a pivot or swivel joint (23) for pivotal or swivel motion about a horizontal pivotal or swivel axis (23') extending transversely to the longitudinal direction of a portion of the marking material conduit (2) located near the container.
10. The marking machine according to claim 8 or 9, characterised in that the extruder (4) in its marking position is connected to an extruder-side end (22) of the marking material conduit (2) designed as a support arm for the extruder (4), for rotation by at least 180° about a vertical axis (40).
11. The marking machine according to claim 9 or 10, characterised in that the extruder (4) has rollers (42) and that in a marking position of the extruder (4) the marking material conduit (2) designed as a support arm for the extruder (4) can be freely pivoted or swivelled in the vertical direction about the horizontal pivot or swivel axis (23') and the rollers (42) roll along the traffic surface (5) to be marked.
12. The marking machine according to one of claims 9 to 11, characterised in that the marking material conduit (2) designed as a support arm for the extruder (4) is capable of being lifted and lowered together with the extruder (4) by a power-driven lifting device from the marking position into an idle position in which the extruder (4) is vertically spaced apart from the traffic surface (5).
13. The marking machine according to one of claims 8 to 12, characterised in that an extruder-side end (22) of the marking material conduit (2) designed as a support arm for the extruder (4) and the extruder (4) are connected to one another through a ball joint (24).
14. The marking machine according to one of claims 1 to 13, characterised in that the marking material pump (3) is integrated into the marking material conduit (2).
15. The marking machine according to claim 14, characterised in that the marking material pump (3) is a worm pump and that a screw conveyor (31) of the marking material pump (3) is arranged in the marking material conduit (2).
16. The marking machine according to one of claims 9 to 15, characterised in that in addition to the marking material conduit (2) designed as a support arm for the extruder (4), the extruder (4) is held by a separate retaining frame (26), the retaining frame being pivotable about the same axis (23') as the marking material conduit (2) relative to the marking material container (12) and connecting the extruder only mechanically to the marking material container (12).
17. The marking machine according to one of claims 1 to 7, characterised in that the marking material conduit (2) is designed as an articulated or flexible conduit with no support function and that the extruder (4) is held on a separate retaining frame (26), the retaining frame being pivotable about a horizontal axis relative to the marking material container (12) and connecting the extruder only mechanically to the marking material container (12).
18. The marking machine according to one of claims 1 to 17, characterised in that a second marking material conduit with a second extruder at its free end is connected to the marking material container (12).
19. The marking machine according to claim 18, characterised in that viewed in the direction of movement (15) of the marking machine (1), the second extruder is arranged in series to the first extruder (4).

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