EP2312056B1 - Device for producing marking lines composed of several individual marking material portions - Google Patents

Description

The invention relates to devices for generating marking lines consisting of many individual marking material portions, wherein the marking material portions can be dispensed from a nozzle arrangement connected to a marking material source with a plurality of dispensing nozzles arranged side by side transversely to a direction of movement of the device by means of compressed air.

Such a device produces marking lines consisting of rows of small marking material portions of conventional two-component marking material, e.g. on roads. The marking material portions are applied to a nozzle beam apparatus known in the art, which is equipped with a series of nozzles arranged transversely to the direction of movement of the apparatus, which are filled from a marking material source via feed channels with the mixed bi-component marking material and at regular intervals Help from supplied via another channel opening into the nozzle channel compressed air blasts in the direction of the surface to be coated, such as road surface, be emptied. Upstream of the nozzle bar of the device is a mixing device to which the two marking material components are supplied, which form a chemically reacting, namely curing mixture during and after the flow through the mixer, which therefore have only a limited residence time in the system until discharge from the nozzles may. The residence time is usually between 5 and 15 minutes, depending on the type of marking material and the mixing ratio set.

The document WO 98/51864 A1 shows a marking device of the type mentioned with two spray guns for high-viscosity marking material. The pistols bring out a continuous spray with the help of compressed air. By changing the material pressure and air pressure, different types of marking lines can be created. The compressed air and the marking material are always applied continuously.

The documents WO 99/29964 A1 and US 2001/023876 A1 show marking devices with several spray guns for the discharge of the marking material, wherein the complete spray guns are variable in position relative to each other. In the device according to the document WO 99/29964 A1 this is done concretely by means of the arrangement of the spray guns on a rod on which the spray guns are displaceable and can be fixed by means of clamping screws. According to the document US 2001/023876 A1 For example, individual spray gun modules are connected in series with one another directly or with spacer plates interposed, forming a continuous material feed channel. By different thickness spacer plates, the distance can be varied.

In the document US Pat. No. 3,589,612 A It is described that two spray guns are arranged side by side on a rectangular hollow profile, which serves as a common material supply channel and is connected via bores with the spray guns in fluid communication. A change in distance of the spray guns relative to each other is not possible here on the hollow profile, since the holes specify a fixed distance.

The document EP 0 632 166 A1 describes an applicator for road marking machines for high viscosity markers. In this known application device is a device for applying high-viscosity markers which are pressed through outlet openings. The housing elements comprising the outlet openings are, however, here not applicable to a nozzle arrangement and detachable from this nozzle elements.

From the DE 103 61 531 A1 Further devices are known for producing marking lines consisting of a plurality of elements of highly viscous marking material on a surface to be marked, in particular a road surface. A first device has a housing bottom provided with outlet openings and a single or a plurality of sliding relative to the housing bottom, the outlet cross-sections of the outlet openings in locomotion the device periodically changing relative to the surface (s) slide on. A second device has a hollow cylinder rotatably drivable in the interior of a housing chamber provided with a passage opening in a housing wall and provided with passages in the cylinder jacket, with its cylinder jacket slidably adjacent to two passage opening edges.
The known devices have a number of disadvantages. One of the disadvantages of some devices is that the distance of the marking material portions transverse to the longitudinal direction of the marking line is unchangeable.
The desirability of the width of the marking line and the diameter of the individual heaps varies between the individual clients for such lines. Frequently, the lines of marking material portions are applied to previously applied sprayed flat lines of paint, and often no protrusion of the marking material portions over the edges of these lines is tolerated. On the other hand, the full width of the previously applied line for the subsequently applied Markierungsmaterialportionen should be exploited to the edges. However, if a change in the material content of the individual marking material portions is desired, this usually also involves a change in their height and diameter, and thus the overall width of the marking material portion marking lines also changes due to the change in the diameter of the outer marking material portion rows. The way out of this problem would be a slight change in the nozzle spacing, but this is a costly and expensive way out in terms of time and cost in the known devices, since this means the production of a new nozzle bar or a new housing bottom and slide or a new hollow cylinder. In order to meet different wishes, it often requires the provision of several device parts, such as a plurality of nozzle bars or a plurality of housing bases and slide or more hollow cylinder with slightly different nozzle or Auslassöffnungsabständen. Also, different line widths that require different nozzle bar or housing bottom or hollow cylinder lengths with a different number of nozzles or outlet openings, make the production of different corresponding device parts required. In addition, there are different wishes of the clients in the transverse distances of the marking material portions. All this leads to an almost unmanageable variety of manufacturable Nozzle bars or other corresponding device parts, which makes a storage little sense and therefore leads to expensive and time-consuming individual production in the current case of need.

Another drawback is the large amount of detergent used in eliminating clogging of individual nozzles during a marker insert and in cleaning the device after a marker insert has been completed.

In devices with many nozzles connected in parallel and supplied by only one marker material source, the likelihood that the marking process must be interrupted due to clogging of one of the many nozzles and the entire system must be freed from reacting marker material mixture by solvent rinse is relatively large. The risk of clogging of one or more nozzles by incipient hardening of the marking material is also great in a nozzle system in that there is no appreciable clogging in the marking material at incipient clogging because the marking material makes its way through the other unclogged nozzles , A hindrance to achieving a high average speed of the marking process is that a blockage must always be eliminated immediately, otherwise curing of the marking material will occur at the blockage site up to its final hardness. The marking material can then be eliminated only mechanically, in the worst case by drilling.

The rinsing procedure is very time-consuming, because from the entire system the marking material in mixture and thus in a curing reaction has to be rinsed out, which requires a large amount of rinsing agent at a high flow rate. Detergents are expensive and polluting and must be collected below the nozzles and disposed of as hazardous. When flushing, one encounters the same drawback of the nozzle system, which also favors the tendency of the system to plug nozzles. The flushing agent seeks the easy path through the unclogged nozzles and often flushes the clogged nozzles and thus often eliminates clogging.

In the device already mentioned above, known from the relevant practice, the nozzle beam is provided with a marking material channel Distributor upstream, from which each nozzle of the nozzle beam is supplied via a separate line with marking material. In each line a commercial ball valve is arranged, with which the connection between the material distributor and nozzle can be interrupted. Although ball valves have the important advantage of the straight passage in the open position for the marking material in reaction, in the blocking position, marking material trapped in the ball bore and between the seals hardens and renders the cock useless. In addition, a commercial ball valve needs a supply and a derivative. After flushing the device, ie after removal of the marking material mixture from the device, marking material mixture from the distribution channel penetrates into the supply line as soon as it is restarted and cures after a short time. Ball valves are therefore unsuitable because of their principle of operation and especially in the aforementioned arrangement as a selection valve for switching on and off the marking material supply for the individual nozzles. The ball valves arranged in the known device in the marking material lines to the nozzles are only suitable for flushing the system for the complete flushing of all nozzles, the flushing process starts with all taps on passage and successively those cocks are closed, from the connected Nozzle clean detergent emerges. The nozzles together with their supply lines can thus be rinsed one after the other in the order of their resistance opposite to the detergent. In each case the remaining not flushed nozzles then acts in each case the entire available detergent pressure and that while until each of the least of the remaining resistances is overcome and after the flushing of the respective nozzle her upstream ball valve can be closed.

However, if the mixture of marking material in the clogged nozzle has already hardened, this flushing process will no longer help. Then the nozzle must mechanically, z. B. with the aid of tools, are freed from the blockage.

After removing a blockage but the device is far from ready to start again. To resume work, the device must again be completely filled with marking material mixture in the correct mixture, starting with the mixing device to the nozzles, which usually until the correct mixture is achieved, it is necessary to spray a more or less large initial amount into a collecting trough.

For the invention, therefore, the object is to provide devices which avoid single or simultaneously several of the above-mentioned disadvantages of the known devices and with which, individually or in combination with each other, in particular a high readiness to deliver, easy adaptability of the distances of the marking material for the individual case of need and an adjustment of the distances of the marking material portions by the operators of the device on site and the rapid provision of necessary for the various line widths device parts can be achieved.

The solution of this object is achieved according to the invention with devices of the type mentioned above with the characterizing features of each of claims 1 to 4.

In all the devices according to the invention, the individual discharge nozzles are located in nozzle elements which can be attached individually to the nozzle arrangement and which can be removed from the nozzle arrangement. The invention thus provides variable and also on the spot in the marking insert variable nozzle arrangements available that allow easy and quick adaptation to different requirements in the production of different marking lines from a variety of Markmaterialmaterialportionen.

In the apparatus according to claim 1 waiving a variability of the lateral distances of the nozzles to each other, the individual nozzle elements with an unchangeable lateral distance to each other on a common mount releasably mounted or attachable. To change the distance of the nozzles from each other here different brackets can be used. In order to be able to dispense with individual feed lines to all nozzle elements, the common holder has a continuous material supply channel and per nozzle member each extending approximately perpendicular to the material supply channel, branching off from this first Materialaustragkanalabschnitt. In addition, each nozzle element has a second material discharge channel section, which can be selectively inserted into and out of the first material discharge channel section in the associated holding element or in the common holder Flow connection can be brought. Thus, nozzles can be selectively switched on and off both during the marking process and during the rinsing process. In addition, each nozzle member relative to the associated support member or to the common support so slidable or rotatable that the first Materialaustragkanalabschnitt and the second Materialaustragkanalabschnitt relative to each other can be selectively brought into and out of coverage, wherein when brought into coverage Materialaustragkanalabschnitten a passage is released and wherein at uncovered Materialaustragkanalabschnitten the passage is completely locked. In this way one obtains technically very easy on-off valve function for the rinsing procedure described above with the successive blocking of the connection to the individual, already purged nozzles.

In the apparatus according to claim 2, in order to easily change the lateral distance of the marking material portions within the marking lines, the individual nozzle elements with variable lateral distance from each other to the nozzle assembly can be assembled. Furthermore, each nozzle element is selectively replaceable associated with an individual support member which is expandable with a desired distance to adjacent support members forming spacers to a support beam. In this way, a beam of a variable number of variably spaced from one another attachable, each having a nozzle member holding elements is formed. In this case, the nozzle elements and the support elements can be efficiently produced and kept in large numbers. In the case of a clogged nozzle, the nozzle element in question, without a cumbersome rinsing procedure is necessary, replace within a few seconds against a non-clogged nozzle member and perform the clogged nozzle member in due course a separate cleaning with very low detergent consumption. As a result, it is possible to effectively reduce both the time required for flushing operations and the consumption of flushing agent in the case of nozzle clogging. The support members and the spacers each have a material passage channel, the support members also each have an approximately perpendicular to the material passageway extending, branching off this first Materialaustragkanalabschnitt and the support members are strung together with the spacers against each other by a clamping device to the support beam braced and form a through the aligned material passageways formed, outwardly dense material supply channel for the nozzle elements. Thus, the supply of the nozzles with the marking material is greatly simplified, because now no longer an individual external supply line is required for each nozzle. Since each nozzle element has a second material discharge channel section, which can be selectively brought into and out of fluid communication with the first material discharge channel section in the associated holding element or in the common holder, nozzles can be selectively switched on and off both during the marking process and during the rinsing process. Furthermore, it is provided here that each nozzle element is displaceable or rotatable relative to the associated holding element or to the common holder such that the first material discharge channel section and the second material discharge channel section can be selectively brought into and out of alignment relative to one another, wherein a passage is provided when the material discharge channel sections are brought into coincidence is released and wherein out of hiding Materialaustragkanalabschnitten the passage is completely blocked. In this way one obtains technically very easy on-off valve function for the rinsing procedure described above with the successive blocking of the connection to the individual, already purged nozzles.

In the apparatus according to claim 3 are dispensing with the variability of the lateral distances of the nozzles to each other, the individual nozzle elements with fixed lateral distance to each other on a common bracket removably mounted or attachable. To change the distance of the nozzles from each other here different brackets can be used. Furthermore, each nozzle element has a second material discharge channel section which can be selectively brought into and out of flow communication with the first material discharge channel section in the associated holding element or in the common holder. Thus, nozzles can be selectively switched on and off both during the marking process and during the rinsing process. Furthermore, it is also provided here that each nozzle element is displaceable or rotatable relative to the associated holding element or to the common holder, so that the first material discharge channel section and the second material discharge channel section can be selectively brought into and out of alignment relative to one another, with the material discharge channel sections being brought into coincidence Passage is released and with out of dispensed Materialaustragkanalabschnitten the passage is completely blocked. In this way one obtains technically very easy on-off valve function for the above-described rinsing procedure with the sequential successful blocking of the connection to the individual, already purged nozzles.

In the apparatus according to claim 4, in order to easily change the lateral distance of the marking material portions within the marking lines, the individual nozzle elements with variable lateral distance from each other to the nozzle assembly can be assembled. Furthermore, each nozzle element is selectively replaceable associated with an individual support member which is expandable with a desired distance to adjacent support members forming spacers to a support beam. In this way, a beam of a variable number of variably spaced from one another attachable, each having a nozzle member holding elements is formed. In this case, the nozzle elements and the support elements can be efficiently produced and kept in large numbers. In the case of a clogged nozzle, the nozzle element in question, without a cumbersome rinsing procedure is necessary, replace within a few seconds against a non-clogged nozzle member and perform the clogged nozzle member in due course a separate cleaning with very low detergent consumption. As a result, it is possible to effectively reduce both the time required for flushing operations and the consumption of flushing agent in the case of nozzle clogging. Since each nozzle element has a second material discharge channel section, which can be selectively brought into and out of fluid communication with the first material discharge channel section in the associated holding element or in the common holder, nozzles can be selectively switched on and off both during the marking process and during the rinsing process. Furthermore, it is provided here that each nozzle element is displaceable or rotatable relative to the associated holding element or to the common holder such that the first material discharge channel section and the second material discharge channel section can be selectively brought into and out of alignment relative to one another, wherein a passage is provided when the material discharge channel sections are brought into coincidence is released and wherein out of hiding Materialaustragkanalabschnitten the passage is completely blocked. In this way one obtains technically very easy on-off valve function for the rinsing procedure described above with the successive blocking of the connection to the individual, already purged nozzles.

The spacers are preferably formed by spacers, whereby they are simple and inexpensive to manufacture.

In the simplest case, all the nozzle elements to a nozzle beam summarizing clamping device may be formed by one or two clamping rods on which the corresponding holes having nozzle elements are pushed. Spacers can be arranged between the nozzle elements. About the thickness and number of the distance between the nozzle elements and thus the nozzle spacing can be adjusted or changed. The distortion can then be e.g. done by screwed end to the tie rods clamping nuts.

It is also possible, if one does not want to dispense with the advantage of variable nozzle distances, to assign a holding element to each nozzle element, which in turn can be fastened variably to the adjacent holding elements on a common holder. The common support may e.g. be a bar-shaped profile to which the support members are attachable. Alternatively, the common holder can also be formed by one or two rods connecting all the holding elements, onto which the holding elements having corresponding bores with interposed spacers are pushed. With the thickness or number of spacers, the distance between the support elements can be adjusted as needed or changed.

In order to enable a desired quick and easy, in particular tool-free change of the nozzle elements, it is preferably provided that each nozzle element can be pressed by at least one retaining spring to the associated support member or to the common support and thus easily releasably halterbar.

The support is advantageously supported by a positive connection between the nozzle element on the one hand and the associated support member or the common support on the other. For this purpose, the invention provides that each nozzle element on the one hand and each associated support member or the common support on the other hand are equipped with cooperating positioning means and / or guide means. This ensures with little effort, that the nozzle member on the one hand and the associated support member or the common support on the other hand safely occupy their desired position or desired positions relative to each other and maintained during operation of the device, but if necessary also slightly relative to each other are adjustable.

As described above, the marking material portions of the individual discharge nozzles are ejected by means of compressed air surges. In this context, it is preferably provided that each nozzle element for supplying the compressed air surges into the discharge nozzle has an air channel which extends directly through the nozzle element or through an air channel body, preferably detachably, inserted into the nozzle element. The first alternative is manufacturing technology particularly simple. In the second alternative, an on-demand replacement of the compressed air channel can be achieved by simply replacing the air duct body without the need to replace the entire nozzle element.

A further embodiment proposes that the compressed air duct is extended in a tubular manner into the discharge nozzle. With this design of the compressed air channel, an undesired penetration of marking material from the discharge nozzle into the compressed air channel is prevented when no more compressed air surges are triggered, but a rest of marking material still flows into the discharge nozzle.

Fig. 1

eine aus dem Stand der Technik bekannte Vorrichtung im Querschnitt, zusammen mit einer aus einzelnen Markierungsmaterialportionen gebildeten Markierungslinie in Seitenansicht und in Draufsicht,

Fig. 2

die Vorrichtung nach dem Stand der Technik aus Fig. 1 in Draufsicht,

Fig. 3

ein erstes Beispiel der erfindungsgemäßen Vorrichtung in einem ersten Betriebszustand, im Querschnitt,

Fig. 4

die Vorrichtung aus Fig. 3 in einem zweiten Betriebszustand, im Querschnitt,

Fig. 5

die Vorrichtung aus Fig. 3 in Draufsicht,

Fig. 6

die Vorrichtung aus Fig. 3 bis Fig. 5 in Seitenansicht gemäß dem Pfeil VI in Fig. 3,

Fig. 7

ein zweites Beispiel der erfindungsgemäßen Vorrichtung in einem ersten Betriebszustand, im Querschnitt,

Fig. 8

die Vorrichtung aus Fig. 7 in einem zweiten Betriebszustand, im Querschnitt,

Fig. 9

die Vorrichtung aus Fig. 7 in Draufsicht,

Fig. 10

die Vorrichtung aus Fig. 7 bis Fig. 9 in Seitenansicht gemäß dem Pfeil X in Fig. 7,

Fig. 11

ein drittes Beispiel der erfindungsgemäßen Vorrichtung in einem ersten Betriebszustand, im Querschnitt,

Fig. 12

die Vorrichtung aus Fig. 11 in einem zweiten Betriebszustand, im Querschnitt,

Fig. 13

die Vorrichtung aus Fig. 11 in Draufsicht,

Fig. 14

die Vorrichtung aus Fig. 11 bis Fig. 13 in Seitenansicht gemäß dem Pfeil XIV in Fig. 11,

Fig. 15

ein viertes Beispiel der erfindungsgemäßen Vorrichtung im Querschnitt,

Fig. 16

die Vorrichtung aus Fig. 15 in Draufsicht,

Fig. 17

die Vorrichtung aus Fig. 15 und Fig. 16 in Ansicht gemäß dem Pfeil XVII in Fig. 15, und

Fig. 18

ein fünftes Beispiel der erfindungsgemäßen Vorrichtung im Querschnitt.

Hereinafter, a device according to the prior art and embodiments of the device according to the invention will be described with reference to a drawing. The figures of the drawing show:

Fig. 1

a device known from the prior art in cross-section, together with a marking line formed from individual marking material portions in side view and in plan view,

Fig. 2

the device according to the prior art Fig. 1 in plan view,

Fig. 3

a first example of the device according to the invention in a first operating state, in cross section,

Fig. 4

the device off Fig. 3 in a second operating state, in cross section,

Fig. 5

the device off Fig. 3 in plan view,

Fig. 6

the device off FIG. 3 to FIG. 5 in side view according to the arrow VI in Fig. 3 .

Fig. 7

A second example of the device according to the invention in a first operating state, in cross section,

Fig. 8

the device off Fig. 7 in a second operating state, in cross section,

Fig. 9

the device off Fig. 7 in plan view,

Fig. 10

the device off FIGS. 7 to 9 in side view according to the arrow X in Fig. 7 .

Fig. 11

A third example of the device according to the invention in a first operating state, in cross-section,

Fig. 12

the device off Fig. 11 in a second operating state, in cross section,

Fig. 13

the device off Fig. 11 in plan view,

Fig. 14

the device off Fig. 11 to Fig. 13 in side view according to the arrow XIV in Fig. 11 .

Fig. 15

A fourth example of the device according to the invention in cross-section,

Fig. 16

the device off Fig. 15 in plan view,

Fig. 17

the device off FIGS. 15 and 16 in view according to arrow XVII in Fig. 15 , and

Fig. 18

a fifth example of the device according to the invention in cross section.

The Fig. 1 and the Fig. 2 The drawing shows in cross-section and in plan view of a known from the prior art device 1 'for generating consisting of many individual marking material portions 11 marking lines 10. In the illustrated known device 1', the connection between a marking material channel 2 'having manifold 2 to a nozzle bar 3 made by flexible lines 4 and 5. Between the lines 4 and 5 is in each case a break valve 6, usually in the form of a ball valve.

The components of a two-component marking material flow through a (not shown) mixing device and enter as a curing reaction mixture in the marking material channel 2 'in the arrow direction and flow from there via the lines 4 and 5 in the nozzle 7 of the nozzle beam. 3

At regular intervals, the constantly forming in the nozzles 7 marking material filling is expelled by compressed air lines 8 supplied compressed air surges. By a certain timing of the compressed air surges, the marking line 10 consisting of a plurality of marking material portions 11 is formed.

The Fig. 3 to Fig. 18 The drawing shows various embodiments of devices according to the invention 1. In this case, the same parts of the device 1 in the FIGS. 3 to 18 provided with the same reference numerals, so not all reference numerals in each drawing figure must be rewritten.

In Fig. 3 to Fig. 6 a first example of the device 1 is shown. This device 1 has a continuous support 15, on the side by side nozzle elements 17 by means of a respective retaining spring 26 releasably and vertically displaceable, but with fixed distances from each other, are clamped.

The marking material is supplied to the individual nozzle elements 17 via individual supply lines 23 and, after flowing through a respective first material discharge channel section 24, arrives in the holder 15 in the in Fig. 3 congruent to this subsequent second Materialaustragkanalabschnitt 25 of the bracket 15 pressed by the retaining spring 26 nozzle member 17 and through this second material discharge passage 25 then to the discharge nozzle 18th

By moving the nozzle member 17 in an upper, in Fig. 4 As shown, the two Materialaustragkanalabschnitte 24 and 25 are offset from each other and made to coincide, that the transition from a Materialaustragkanalabschnitt 24 to the other Materialaustragkanalabschnitt 25 is completely interrupted.

The force of the retaining spring 26 is chosen so that the pressure of the marking material in the Materialaustragkanalabschnitten 24 and 25 is not able to remove the nozzle member 17 to form a gap from the holder 15.

To guide the nozzle elements 17 during the displacement are formed on the continuous support 15 integrally formed in 3 and 4 shown in dashed lines and in Fig. 5 By means of a further guide means in the form of a nose 27 per nozzle element 17 on the holder 15 and an associated groove 27 'on each nozzle member 17, the displacement path is predetermined and limited to the necessary extent.

The nozzle elements 17 are easily interchangeable here and take over the function of releasing and interrupting the supply of marking material or detergent to the individual discharge nozzles 18 in cooperation with the holder 15.

In FIGS. 7 to 10 a second example of the device 1 is shown. This device 1 also has a continuous holder 15, on the side by side nozzle elements 17 are mounted releasably and vertically displaceable by means of a respective retaining spring 26. Here, the holder 15 has a continuous material supply channel 30 running in its longitudinal direction and branching off approximately perpendicularly from this material supply channel 30 per nozzle element 17, each having a first material discharge channel section 24.

In the in Fig. 7 shown position of the nozzle member 17 is the first Materialaustragkanalabschnitt 24 each at the interface to the clamped on the holder 15 nozzle member 17 congruent into a second Materialaustragkanalabschnitt 25 in this nozzle member 17 via. From the second material discharge channel section 25, the marking material reaches the discharge nozzle 18.

By moving the nozzle member 17 relative to the bracket 15 in an upper, in Fig. 8 shown position, the two Materialaustragkanalabschnitte 24 and 25 offset from each other so that they get out of coverage and thus the transition from one material discharge channel section 24 to the other material discharge channel 25 is completely interrupted. To guide the nozzle elements 17 during this displacement are projections 28 of the holder 15. A Verschiebungswegbegrenzung effect each have a nose 27 on the holder 15 and a cooperating, elongated groove 27 'on the nozzle member 17th

About the front ends of the holder 15, the marking material is fed to the material supply passage 30 via a respective only partially shown common supply line 23 '. In this case, alternatively, the one supply line 23 'for supplying the marking material and the other supply line 23' serve for supplying rinsing liquid.

The compressed air supply also takes place here by means of individual compressed air lines 19 'and a compressed air channel 19 per nozzle unit 17 to each discharge nozzle 18th

In 11 to FIG. 14 a third example of the device 1 is shown. This device 1 has a number of support members 20 which are pushed with corresponding holes on two tie rods 21. The desired distance of the support members 20 to each other is here with intermediate spacers 22, here spacers set. At each support member 20, a nozzle member 17 is detachably arranged, here again clamped by means of a respective retaining spring 26.

By clamped on the tie rods 21 end clamping nuts 21 ', the support members 20 and the intermediate spacers 22 against each other to form a composite in the form of a support beam 15' braced.

In this embodiment of the device 1, one obtains both the desired variable adjustability of the nozzle spacing in the transverse direction of the marking line and easy exchangeability of the nozzle elements 17.

The marking material is supplied to the individual support elements 20 here via individual supply lines 23 and, after flowing through a first material discharge channel section 24 in the support element 20, enters the in Fig. 11 congruent to this subsequent second Materialaustragkanalabschnitt 25 of the nozzle member 17 and through this second Materialaustragkanalabschnitt 25 to the discharge nozzle 18th

By sufficiently far displacement of the nozzle member 17 in an upper, in Fig. 12 As shown, the two Materialaustragkanalabschnitte 24 and 25 are offset from each other so that the transition from one material discharge passage 24 to the other material discharge passage 25 is completely interrupted.

Out FIGS. 11, 12 and 13 It can be seen that the spacers 22 used for adjusting the nozzle spacing between the holding elements 20 have a protrusion 28 protruding beyond the holding elements 20 and serving for laterally guiding the nozzle elements 17 as they are displaced relative to the holding elements 20.

In FIGS. 15 to 17 a fourth example of the device 1 is shown. The support members 20 and spacers 22 here each have a material passageway 29, for example in the form of a bore, and each approximately perpendicularly branching off from this material passageway 29 a first material discharge channel section 24.

In the position of the nozzle member 17 according to Fig. 15 the first Materialaustragkanalabschnitt 24 on the separation surface to the clamped nozzle member 17 in the second Materialaustragkanalabschnitt 25 of this nozzle member 17 via. From the in Fig. 15 As shown, each nozzle member 17 can be individually displaced upwardly to bring the Materialaustragkanalabschnitte 24 and 25 out of register, thus shutting off the passage.

By clamped on the tie rods 21 end clamping nuts 21 ', the support members 20 and the intermediate spacers 22 against each other to a marking material and rinsing fluid-tight composite in shape a support beam 15 'braced. Strung together form the support members 20 and spacers 22 thereby from the material passageways 29 a continuous material supply channel 30 in the support bar 15 '.

The front ends of the support bar 15 'are formed by the two end pieces 32 and 33. Via at least one of the end pieces 32, 33, the marking material is fed to the material supply channel 30 through one or two supply lines 23 '.

At the in FIGS. 15 to 17 1, the distribution function of the material supply channel 30 with the function of mountable with variable distance support members 20 and with the blocking function for interrupting Markierungsmaterial- or detergent supply to the individual nozzle elements 17 is advantageous in space and Markierungsmaterialinhalt saving and thus detergent-saving manner compactly summarized.

In Fig. 18 a fifth and last example of the device 1 is shown. It again has a continuous holder 15, here for example an extruded aluminum. On the holder 15 individual nozzle elements 17 are placed easily replaceable side by side, one of which is visible in cross section. Each nozzle element 17 has an individual marking material supply line 23, which continues in the interior of the nozzle element 17 as a channel 25 up to a downward-pointing discharge nozzle 18. Each of its own compressed air duct 19 'and a downwardly continuing compressed air duct 19 each discharge nozzle 18 can be supplied controlled from above compressed air shocks to each eject a Markierungsmaterialportion 11 from the discharge nozzle 18 on the substrate to be marked, such as road.

Unlike in the previously described examples, the example follows Fig. 18 the compressed air channel 19 is not directly through the interior of the nozzle member 17, but by an air channel body 34, which is inserted as a separate item from above into the nozzle member 17, preferably releasably screwed is. Accordingly, here the compressed air line 19 'is connected to the upper end of the air duct body 34. An on-demand replacement of the compressed air channel 19, for example, in case of clogging or wear or to change the cross section of the Compressed air channel 19, so can be done by simply replacing the air duct body 34 without replacement of the entire nozzle member 17 is necessary.

Furthermore, in the example Fig. 18 provided that the compressed air channel 19 is tubular in the discharge nozzle 18 extends into it. In this case, the tubular lower part 19.1 of the compressed-air channel 19 protrudes into the discharge nozzle 18 so far that the free end of the compressed-air channel 19 lies at the level of the mouth of the channel 25 in the discharge nozzle 18. In this case, the outer diameter of the tubular part 19.1 of the compressed air channel 19 in relation to the inner diameter of the discharge nozzle 18 is so small that the tubular part 19.1 of the air duct 19 does not hinder the feeding of the marking material from the channel 25 into the discharge nozzle 18.

With this embodiment of the compressed air channel 19, penetration of marking material from the discharge nozzle 18 is prevented at the top in the compressed air channel 19 when no more compressed air surges are triggered, but still trailing a rest of marking material in the discharge nozzle 18. This ensures that malfunctions of the device 1 by in the compressed air channel 19 and cured therein marking material, which would lead to a blockage of the compressed air channel 19 and thus to inhibit the marking material output, no longer occur. An elaborate cleaning of blocked compressed air channels 19 is thus virtually no longer necessary during operation of the device 1 and the productivity of the device 1 is improved. LIST OF REFERENCE NUMBERS character description 1, 1 ' contraption 2 manifold bar 2 ' Marking material channel in 2 3 nozzle beam 4 flexible line 5 flexible line 6 cut-off valve 7 jet 8th Compressed air line 9 underground 10 marking line 11 Marking material portions 12 Direction of movement of the device 15 common bracket 15 ' retention beam 17 nozzle elements 18 discharge nozzles 19 Compressed air duct 19.1 tubular extended part of 19 19 ' Compressed air line 20 support members 21, 21 ' Clamping device (tie rods and nuts) 22 spacers 23 individual supply lines 23 ' common supply line (s) 24 first material discharge channel section (in 15, 20) 25 second material discharge passage section (in FIG. 17) 26 retaining spring 27, 27 ' Guide means (nose, groove) 28 Got over 29 Fluid passageway (in 20) 30 Material supply channel (in 15, 15 ') 32, 33 End pieces (at 15 ') 34 Air duct body

Claims (10)

1. Device (1) for producing marking lines (10) composed of many individual marking material portions (11), comprising a nozzle array connected to a marking material source and having several discharge nozzles (18) arranged side by side, transversely to a direction of movement (12) of the device (1) and provided to eject marking material portions (11) with the aid of blasts of compressed air,
   characterised in that
   the individual discharge nozzles (18) are situated in nozzle elements (17) adapted to be individually applied to and removed from the nozzle array, the individual nozzle elements (17) are or can be mounted on a common holding device (15) at a fixed lateral distance from one another,
   the common holding device (15) has a material feed duct (30) passing through it lengthwise, and per nozzle element (17) one first material discharge duct section (24) each extending approximately perpendicularly to and branching off from the material feed duct (30),
   each nozzle element (17) has a second material discharge duct section (25) capable of being brought alternatively into and out of fluidic connection to the first material discharge duct section (24) in the common holding device (15), and
   each nozzle element (17) is displaceable or rotatable relative to the common holding device (15) in such a way that the first material discharge duct section (24) and the second material discharge duct section (25) can be alternatively brought into and out of alignment relative to one another, wherein passage is cleared for those material discharge duct sections (24 and 25) that are moved into alignment, and passage is completely blocked for those material discharge duct sections (24 and 25) that are moved out of alignment.
2. Device (1) for producing marking lines (10) composed of many individual marking material portions (11), comprising a nozzle array connected to a marking material source and having several discharge nozzles (18) arranged side by side, transversely to a direction of movement (12) of the device (1) and provided to eject marking material portions (11) with the aid of blasts of compressed air,
   characterised in that
   the individual discharge nozzles (18) are situated in nozzle elements (17) adapted to be individually applied to and removed from the nozzle array, the individual nozzle elements (17) can be assembled with variable lateral spacing from one another to form the nozzle array,
   each nozzle element (17) is associated in a selectively exchangeable manner with an individual holding element (20) that can be expanded with spacing pieces (22) providing a desired distance between adjacent holding elements (20), to form a holding beam (15'),
   the holding elements (20) and the spacing pieces (22) each have a material passage duct (29); the holding elements (20) also each have a first material discharge duct section (24) extending approximately perpendicular to and branching off from the material passage duct (29); the holding elements (20) with the spacing pieces (22), held in a row against one another, can be clamped by a clamping device (21, 21') to the holding beam (15'), creating an outwardly tight material feed duct (30) for the nozzle elements (17) that is formed by the mutually aligned material passage ducts (29),
   each nozzle element (17) has a second material discharge duct section (25) capable of being brought alternatively into or out of fluidic connection to the first material discharge duct section (24) in the relevant holding device (20), and
   each nozzle element (17) is displaceable or rotatable relative to the associated holding element (20) in such a way that the first material discharge duct section (24) and the second material discharge duct section (25) can be alternatively brought into or out of alignment relative to one another, wherein passage is cleared for those material discharge duct sections (24 and 25) that are moved into alignment, and passage is completely blocked for those material discharge duct sections (24 and 25) that are moved out of alignment.
3. Device (1) for producing marking lines (10) composed of many individual marking material portions (11), comprising a nozzle array connected to a marking material source and having several discharge nozzles (18) arranged side by side, transversely to a direction of movement (12) of the device (1) and provided to eject marking material portions (11) with the aid of blasts of compressed air,
   characterised in that
   the individual discharge nozzles (18) are situated in nozzle elements (17) adapted to be individually applied to and removed from the nozzle array, the individual nozzle elements (17) are or can be mounted on a common holding device (15) at a fixed lateral distance from one another,
   the marking material can be fed to the individual nozzle elements (17) via individual feed lines (23) and a respective first material discharge duct section (24) in the holding device (15),
   each nozzle element (17) has a second material discharge duct section (25) that together with the first material discharge duct section (24) is displaceable or rotatable in the common holding device (15) relative to the common holding device (15) in such a way that the first material discharge duct section (24) and the second material discharge duct section (25) can be alternatively brought into or out of alignment relative to one another, wherein passage is cleared for those material discharge duct sections (24 and 25) that are moved into alignment, and passage is completely blocked for those material discharge duct sections (24 and 25) that are moved out of alignment.
4. Device (1) for producing marking lines (10) composed of many individual marking material portions (11), comprising a nozzle array connected to a marking material source and having several discharge nozzles (18) arranged side by side, transversely to a direction of movement (12) of the device (1) and provided to eject marking material portions (11) with the aid of blasts of compressed air,
   characterised in that
   the individual discharge nozzles (18) are situated in nozzle elements (17) adapted to be individually applied to and removed from the nozzle array,
   the individual nozzle elements (17) can be assembled with variable lateral spacing from one another to form the nozzle array,
   each nozzle element (17) is associated in a selectively exchangeable manner with an individual holding element (20) that can be expanded with spacing pieces (22) providing a desired distance between adjacent holding elements (20), to form a holding beam (15'),
   the marking material can be fed to the individual nozzle elements (17) via individual feed lines (23) and one first material discharge duct section (24) each in the respective holding element (20),
   each nozzle element (17) has a second material discharge duct section (25) capable of being brought alternatively into and out of fluidic connection to the first material discharge duct section (24) in the relevant holding element (20), and
   each nozzle element (17) is displaceable or rotatable relative to the associated holding element (20) in such a way that the first material discharge duct section (24) and the second material discharge duct section (25) can be alternatively brought into and out of alignment relative to one another, wherein passage is cleared for those material discharge duct sections (24 and 25) that are moved into alignment, and passage is completely blocked for those material discharge duct sections (24 and 25) that are moved out of alignment.
5. The device according to Claim 2 or 4, characterised in that the spacing pieces (22) are formed by sheet metal spacers.
6. The device according to one of Claims 1 to 5, characterised in that each nozzle element (17) can be urged by at least one retaining spring (26) against the relevant holding element (20) or against the common holding device (15).
7. The device according to Claim 6, characterised in that each nozzle element (17) on the one hand and each associated holding element (20) or the common holding device (15) on the other hand are equipped with interacting positioning means and/or guide means (27, 27').
8. The device according to one of Claims 1 to 7, characterised in that the marking material portions (11) capable of being ejected from the discharge nozzles (18) with the aid of blasts of compressed air may be ejected at regular time intervals.
9. The device according to one of Claims 1 to 8, characterised in that each nozzle element (17) has a compressed air duct (19) to feed the blasts of compressed air into the discharge nozzle (18), said compressed air duct running directly through the nozzle element (17) or through an air duct body (34) inserted, preferably releasably inserted, into the nozzle element (17).
10. The device according to Claim 9, characterized in that the compressed air duct (19) is extended in the form of a pipe into the discharge nozzle (18).

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