EP3569765B1 - Roadway limiting element and method for opening a roadway limiting element and use of a fluidics device for opening a roadway limiting element - Google Patents

Description

The present invention relates to a roadway delimiting element and a method for opening a roadway delimiting element and the use of a fluidic device for opening a roadway delimiting element.

Various such roadway delimitation elements, colloquially also called crash barriers, are known from the prior art. The purpose of lane delimitation is to hold vehicles back on the roadway in the event of an accident. However, generic roadway delimitation elements should make it possible to provide a passage for emergencies.

Here is with the DE 20 2004 011 860 U1 a device for opening/closing a passage in a lane boundary has become known. It is a lane delimitation element which is designed in two parts. A first element is stationary and a second element is arranged to be movable relative to this first stationary element. In the DE 20 2004 011 860 U1 it is proposed to move a telescopic element by hydraulics with a motor drive. This design is disadvantageous because it has a complex structure, requires additional energy sources and requires complex maintenance.

GB 2 479 722 A shows a lane boundary element with a fluidic device.

It is the object of the invention to eliminate these and other disadvantages of the prior art and in particular to provide a roadway delimitation element that can be opened quickly and easily and a method for opening a roadway delimitation element that is quick and easy.

This object is solved by a device and a method according to the independent claims.

The object is achieved by a lane delimitation element which comprises a stationary element and a telescopic element. The telescopic element can be moved relative to the stationary element, with the telescopic element being displaceable in particular into a crash barrier element. The telescopic element and the stationary element are connected or can be connected by means of a locking device. The locking device is connected to a fluidic device by means of a force transmission element, in particular a traction drive. The locking device and the telescopic element can be moved by the fluid power device. The fluidic device includes a pressure accumulator.

Equipping the roadway boundary element with a fluidic device that has a pressure accumulator enables the locking device and telescopic element to be moved in a power-saving manner, independently of an external energy source. In particular, no further motorized drive device is provided. By dispensing with a motor drive, the lane delimitation element is simpler and cheaper to manufacture and maintain. The fluid-technical device can be configured as hydraulic or as pneumatic. If the telescopic element can be moved into a crash barrier element, the telescopic element can be moved without requiring any further space.

The roadway delimiting element preferably has fastening elements, in particular threads. The fastening elements are located in particular at the body's center of gravity of the lane delimitation element. In particular, the attachment options serve to attach lifting lugs.

This makes it possible to fasten the lane delimitation element easily and quickly during transport and thus to increase load security. Is the thread at the body's center of gravity fitted, safety is further enhanced by maintaining the balance of the load, preventing movement such as tipping or excessive slewing. The design of the attachment as a thread makes it easy and quick to assemble and disassemble screws, lifting lugs or other fastening options with threads.

A lane delimitation element preferably comprises a gripping element. The locking device can be opened by actuating the handle element. By using the handle element, in particular the telescopic element can be moved, in particular when the pressure accumulator of the fluid power device is not filled.

With such a grip element, the lane delimitation element is independent of the existing pressure and the functionality of the fluid-technical device and can always be operated in an emergency.

The telescopic element preferably has a stroke length of at least 1.6 m.

Such a width of the emergency opening allows fire-fighting support vehicles to pass through without any problems.

Preferably, the fluidic device of a lane delimitation element comprises a moving element, in particular a hydraulic or pneumatic cylinder, a connecting device and an operating element, in particular a release button.

A moving element such as a hydraulic or pneumatic cylinder easily converts the pressure from the accumulator into motion which can be transmitted to the power transmission element by a connecting device such as ferrules, joints, rings, hooks, turnbuckles or other suitable devices. Is the fluid power device with a Equipped with an operating button, the use of the emergency opening by the people present and thus their self-rescue is made possible.

The fluidic device of the lane delimitation element is preferably arranged outside of the telescopic element. In particular, the fluidic device is arranged in a crash barrier element.

As a result, the telescopic element is less heavy and can be moved with less effort. If the hydraulic device is arranged in a crash barrier element, it is exposed to fewer external influences and therefore requires less maintenance. Furthermore, no additional cover is required, which requires less material and thus reduces the manufacturing costs.

The roadway delimiting element or the crash barrier element preferably comprises a closable opening, in particular a cover which can be fastened with screws, preferably in order to enable access to the fluid-technical device.

A closable opening allows easy access to the fluid power device for maintenance work such as oil changes without the need for complete disassembly. This saves time and effort.

Preferably, the fluidic device or at least parts thereof is attached to a carrier element. The carrier element is in particular a plate with a wall thickness between 1-10 mm. In particular, the plate is made of steel. The carrier element is essentially formed in a crash barrier element. The carrier element with the fluidic device can be removed in particular from the crash barrier element.

A defective fluidic device can be eliminated by fastening the fluidic device to a carrier element exchange quickly and easily. If such a carrier element is located in a crash barrier element, it is protected from many external influences. If the carrier element with the fluidic device can be removed from the crash barrier element, the expenditure of time and work is reduced. The support element can be made of steel, aluminium, plastic or any other suitable material that forms a cheap and stable variant for a support element.

Preferably, the fluidic device of a lane delimitation element includes a hand pump with which the pressure accumulator of the fluidic device can be charged.

This enables charging regardless of the location of the lane delimitation element and the facilities available there. In the context of this invention, charging means increasing the internal pressure of the pressure accumulator by pumping in a fluid, such as a liquid, in particular hydraulic oil or air. In order for the hand pump to be easily accommodated and operated, it may be positioned at an angle W in another element, such as the guardrail element, the angle W being in the range of 20° to 60°. Within the scope of the invention, the angle W is formed between a longitudinal axis of a cylinder of the hand pump and the longitudinal axis of the crash barrier element.

At least one pressure sensor is preferably formed in the pressure accumulator of the fluid power device, the pressure sensor preferably being connected to a data transmission unit.

In this way, it is ensured with little expenditure of time and effort that the fluid power device has sufficient pressure and is thus functional. The pressure sensor can be arranged in the pressure accumulator or in a connected line which has the same pressure level or allows conclusions to be drawn about the pressure level in the pressure accumulator.

The fluidic device of the lane delimitation element preferably comprises a valve and a movement element, in particular a hydraulic or pneumatic cylinder. The movement speed of the moving element can be adjusted by the valve, in particular by adjusting the mass flow of the fluid through the valve. In particular, the movement speed can be adjusted in such a way that the displacement time of the telescopic element over its stroke length is 5-10 seconds.

Such a hydraulic device makes it possible for an opening time for the emergency opening to be selected that corresponds to the given situation and/or the requirements.

The operating element of the fluid power device can include a locking pin. Movement of the operating element can be blocked by attaching the locking pin.

This increases security. The operating element preferably has a diameter of 100 mm. The advantage of such a control element is that even people with a motor handicap are able to operate the emergency opening and thus save themselves. The control element can be made of plastic, another plastic or similar suitable material. In a preferred variant, the impact of a vehicle, in particular a passenger car, with a mass of 1300 kg, a speed of 80 km/h at an impact angle of 8° and/or a vehicle, in particular a truck, with a mass of 10000 kg, A speed of 70km/h can be stopped at an impact angle of 8° by the locking device of the lane delimitation element. As a result, the lane delimitation element withstands the impact at a level T3 according to EN 1317-2.

The lane delimitation element preferably comprises an opening tap. The opening tap of the fluid power device can be opened and closed by an operating element.

The operation of the lane delimitation element is quick and easy as a result.

The object is further achieved by a method for opening a lane delimitation element. The task is solved by a lane delimitation element as described above. First, a locking device is moved through the fluid power device. The movement of the locking device unlocks the connection between the telescopic element and the stationary element. After the connection has been unlocked, a telescopic element is moved, in particular shifted into a crash barrier element, by the continuation of the movement of the fluid power device.

The advantage of this method is that both the unlocking of the locking of the stationary element and the telescopic element and the movement of the telescopic element are brought about solely by the continuation of the movement of the fluid power device. No further drive or movement of the fluid power device is necessary. This makes the process simple and reliable.

The use of a fluid power device with a pressure accumulator for moving a telescopic element and a locking element of a roadway delimitation element as described above also leads to the solution of the task.

A lane delimitation element can thus be opened easily. Roadway boundary elements are typically set up along a roadway in the direction of travel. Lane boundary elements therefore typically have an elongated extension Lane direction, wherein the lane delimitation elements have a longitudinal axis which extends in the direction of travel in the intended use of the lane delimitation element.

The stationary element and the telescopic element of the lane delimitation element and the crash barrier element each have two side walls. By definition, side walls are elements that are arranged laterally with respect to a vertical plane extending through the longitudinal axis. The side walls of the telescopic element and the crash barrier element are each connected to one another and are each formed parallel to one another. They are preferably connected to one another in such a way that the telescopic element and/or the crash barrier element are designed as a hollow profile. The telescopic element is arranged within the crash barrier element so as to be displaceable along a longitudinal axis, with the telescope element being essentially surrounded by the crash barrier element in a cross section transverse to the longitudinal axis. Both the telescopic element and the stationary element as well as the crash barrier element have a cross section that is symmetrical to a vertical plane extending through the longitudinal axis L.

The roadway delimiting element can have a traction drive, in particular a cable drive, for displacing the telescopic element relative to the stationary element. The traction drive can be arranged between a side wall of the crash barrier element and a side wall of the telescopic element, in particular in a depression in the telescopic element, and extends in the direction of the longitudinal axis. The indentation on the telescopic element can be placed essentially centrally in relation to a vertical height of the telescopic element, which essentially corresponds to the external dimensions of the telescopic element. This means that the depression is in the middle third of the telescopic element.

The traction drive can be arranged vertically, that is to say that an axis of rotation of the drive will extend essentially horizontally. In addition or as an alternative, it can be provided that the traction drive is arranged in a bulge of the crash barrier element, or that the roadway delimiting element has two traction drives that lie opposite one another.

The vertical arrangement of the traction drive makes it possible to dispense with additional support for the individual strands. It is possible that the traction mechanism has a gear reduction.

It is possible to equip each lane delimitation element with a crank, which can be inserted into the coupling if necessary. For this purpose, the crank can be countersunk on the lane delimitation element. This means that a separate crank does not have to be provided for each lane delimitation element. In order to use the lane-limiting element, i.e. to move the telescopic element relative to the stationary element, it is thus sufficient that the worker or the user who manipulates the lane-limiting element only needs to be equipped with a single crank. A coupling between the traction drive and the crank can be arranged countersunk in the side wall.

The telescopic element can be mounted on the crash barrier element by means of rollers. The rollers are preferably located within the crash barrier element and are operatively connected to one or more surfaces of the crash barrier element that are on the inside of the crash barrier element. The rollers are in particular arranged in pairs and can be arranged diametrically opposite one another or offset. The rollers support a side wall of the telescopic element on a side wall of the crash barrier element. One This enables vertical guidance. In addition, rollers are provided in pairs at the top and bottom of the telescopic element. This allows the telescopic element to be guided horizontally. In addition, a support roller is formed on the telescopic element to absorb at least a portion of the telescopic element's own weight. This means that when the telescopic element is moved or telescoped, one end of the telescopic element moves away in relation to the crash barrier element. Due to the telescopic element's own weight, this tends to be bent downwards with this end. This can be prevented by the support roller.

The lane delimitation element includes a locking device that can be designed as a hook and bolt. It is conceivable to design the hook with a tapered fastening link, with a distance between the fastening link and a pivot point being greater in a first position than the distance between the fastening link and the pivot point in a second position. The first element of the locking device can be designed as a disc with an eccentric.

Stationary element, telescopic element and crash barrier element can be made of sheet metal elements. In relation to the position of the roadway delimiting element when used as intended, the crash barrier element and the stationary element of the roadway delimiting element can essentially have the contour of an upside-down T. The arms of the T form a base, the leg of the T forms a hollow profile. The telescopic element is located within the leg of the crash barrier element. The base of the crash barrier element and the stationary element can have a base plate that closes off the hollow profile. Both telescopic element and stationary element as the crash barrier element is also preferably designed as a welded construction.

Figur 1:

Fahrbahnbegrenzungselement in perspektivischer Darstellung

Figur 2:

Querschnitt durch das Leitplankenelement

Figur 3:

Querschnitt durch die Verbindungsvorrichtung der Hydraulikvorrichtung

Figur 4:

Detail der Verriegelungsvorrichtung

Figur 5:

Querschnitt durch das Teleskopelement

Figur 6:

Querschnitt durch das Leitplankenelement und Teleskopelement

An embodiment of a lane delimitation element is explained by way of example with reference to the following figures. It shows:

Figure 1:

Lane delimitation element in a perspective view

Figure 2:

Cross section through the crash barrier element

Figure 3:

Cross section through the connecting device of the hydraulic device

Figure 4:

Detail of the locking device

Figure 5:

Cross section through the telescopic element

Figure 6:

Cross section through the crash barrier element and telescopic element

the figure 1 shows a roadway delimiting element 100. The roadway delimiting element has three main elements, the stationary element 10, the telescopic element 20 and the locking device 30. These elements are arranged in such a way that the locking device 30 forms a detachable connection between the stationary element 10 and the telescopic element 20.

The stationary member 10 has a substantially T-shaped cross-sectional shape. The crossbar of the T forms a 300mm wide base, which is arranged at the bottom when used as intended. The leg of the stationary element 10 is essentially a hollow profile. The stationary element 10 has an inner element 42 which is similar in shape to the telescopic element 20 (cf. 4 , 6 ) on.

The telescopic element 20 can be moved into a crash barrier element 40 . The crash barrier element 40 has essentially the same contour as the stationary element 10. In order to facilitate the displacement of the telescopic element 20, various rollers 23, 24 and 25 are arranged in the telescopic element 20 (cf. figure 5 ). The locking device 30 comprises a hook 32 and a bolt 31, a handle 35 being attached to the hook 32 and a guide bolt 39 being attached below the hook 32 (cf. 4 ). The telescopic element is 1665 mm long, the stationary element is 2800 mm and the crash barrier element is 7000 mm long. The total length of the lane delimitation element 100 is 5000 mm, the total height is 510 mm.

Roadway delimiting element 100 is typically arranged along a roadway (not shown here) and therefore has a longitudinal axis L in the direction of travel.

figure 2 shows the crash barrier element 40 in a sectional view. The fluidic device 50 is arranged in the crash barrier element 40, here a hydraulic device 50, which is arranged on a carrier element 67 made of steel.

The hydraulic device 50 consists of the four main elements pressure accumulator 51, hydraulic cylinder 52, hand pump 53 and operating element 54.

The pressure accumulator 51 is configured parallel to the longitudinal axis L of the crash barrier element 40 (cf. figure 1 ). The pressure accumulator 51 is connected to an accumulator safety block 55 . The storage safety block 55 is connected both to a flow control valve 56 and to a manometer 57 which indicates the pressure in the hydraulic line 66 . Through the flow control valve 56, the opening speed of the emergency opening can be adjusted by the flow cross section of the measuring throttle of the flow control valve is increased or decreased by the cock 64.

The hydraulic cylinder 52 is essentially formed below the pressure accumulator 51 parallel to the longitudinal axis L of the crash barrier element 40 . The hand pump 53 is formed on the rear side of the hydraulic cylinder, with the axis of the cylinder of the hand pump 53 forming an angle W of 45° to the longitudinal axis L. However, the hand pump 53 can also be arranged at a different angle.

A check valve 58 is connected to the hand pump 53 . The hand pump 53 has a lever 59 that can be operated through an opening in the guardrail member 40 located in the leg end of the guardrail member 40 . The opening can be closed with a cover 60 . The cover 60 can be fixed with screws. However, the cover 60 could also be clamped or attached in any other suitable manner. A tank 61 is arranged below the hand pump 53, the longitudinal axis of the cylinder forming an angle W to the longitudinal axis L of 45°. However, the tank 61 could also be arranged at a different angle.

The operating element 54 is formed in a further opening in the crash barrier element 40 , this further opening being a continuous incision in the leg end of the crash barrier element 40 , as a result of which the operating element 54 can be operated from both sides of the crash barrier element 40 . The operating element 54 is connected to an opening tap 62 .

The hydraulic line 63 from the tank 61 to the check valve 58 of the hand pump 53 is blocked by the opening cock 62. The manometer 58 is connected to this line 63 . A hydraulic line 65 leads from the hydraulic cylinder connection A to the tank 61. Another hydraulic line 66 leads from the flow control valve 56 of the pressure accumulator 51 to the cylinder connection B. The hydraulic lines are arranged between the pressure accumulator 51 and the hydraulic cylinder 52.

To move the telescopic element 20 into the crash barrier element 40, i.e. to open the emergency opening, the opening cock 62 is rotated by the angle K of 90° by pressing down the operating element 54, as a result of which the hydraulic line 63 between the hydraulic cylinder 52 and the tank 61 is opened. The hydraulic oil can escape from cylinder port A. The hydraulic oil in the pressure accumulator 51 flows out through the safety block 55 and the flow control valve 56 into the cylinder connection B and thus retracts the hydraulic cylinder 52 .

To close the emergency opening, the operating element 54 is pulled out, as a result of which the opening cock 62 is turned back by the angle K of 90° and the hydraulic line 63 is thereby closed. Alternatively or additionally, hydraulic oil is pumped from the tank 61 into the cylinder port A by moving the lever 59 of the hand pump 53 . The hydraulic oil from cylinder port B is pressed back into pressure accumulator 51 by flow control valve 56 and safety block 55 .

Remote monitoring of the pressure accumulator using LoRaWAN technology (Long Range Wide Area Network) is possible where this network is available in the region of use of the lane boundary element. To do this, the manometer, which is connected to the pressure accumulator, is connected to a data transmission unit. However, other suitable monitoring systems can also be used, provided that this system covers the entire field of application of the lane delimitation element.

figure 3 shows a longitudinal section of the connecting device 70 between the hydraulic cylinder 52 and the force transmission element 80 in the form of a traction drive such as a cable, in particular a steel cable. However, chains, belts or other long-moving power transmission elements could also be used.

A guide tube 71 is fastened to the rear end of the telescopic element 20 with a fastening element 72 . Piston rod 73 of hydraulic cylinder 52, connecting element 74, turnbuckle 75 and cable clamp 76 are formed in guide tube 71. The piston rod 73 of the hydraulic cylinder 52 is connected to a connecting member 74 by means of the turnbuckle 75 . The connecting link 74 in turn is also connected to the rope clamp 76 . The cable clamp 76 connects the power transmission element 80 to the connecting device 70. Regardless of the functionality of the fluid power device 50, in particular when the pressure accumulator 51 is empty, the telescopic element 20 can be moved, the emergency opening can therefore be opened and closed. By actuating the handle element 35 ( figure 5 ) the guide tube 71 is pushed over the piston rod 73.

figure 4 shows the locking device 30. In the present case, the locking device 30 is formed from two main elements, a retaining bolt 31 and a hook 32 with a tapering contour. In the present case, the hook 32 is designed as a disc with an eccentric. The retaining bolt 31 is arranged on the stationary element 10, the hook 32 on the telescopic element 20. The hook 32 is rotatably mounted about a pivot pin 33. A guide pin 39 is arranged below the hook 32 . The hook 32 can be rotated in the direction of arrow P. A fastening link 34 is arranged on the hook 32 . The fastening link 34 has a first distance X1 and a second distance X2 from the pivot bolt 33, ie it is tapering. The attachment backdrop 34 is set up with this distance to come into operative connection with the retaining bolt 31. The distance X1 is greater than the distance X2. Thus, the hook 32 can be engaged with the retaining bolt 31. By rotating the hook 32 in the direction of arrow P, a distance between the telescopic member 20 and the stationary member 10 is shortened. The guide bolt 39 brings the telescopic element 20 and the stationary element 10 together in such a way that a connection is facilitated. As soon as the end faces of the telescopic element 20 and the stationary element 10 meet and the hook 32 is rotated further in the direction of the arrow P, a prestress is created between the telescopic element 20 and the stationary element 10 . They are definitely connected to that.

figure 5 shows the telescopic element 20 in a sectional view. You can see the hook 32 and the traction drive 80, as well as the rollers 24 and 25, which are arranged on the telescopic element. Further rollers 23 are arranged on the crash barrier element 40 . The rollers 23, 24 and 25 support the telescopic element 20 and facilitate the sliding of the telescopic element 20.

The rollers 24 are arranged at the top and bottom of the telescopic element 20, with the upper rollers 24 being offset from the lower ones. The telescopic element 20 has four lower and four upper pairs of rollers 24, i.e. a total of sixteen rollers 24.

The rollers 23 are two diametrically opposite lateral rollers 23 arranged on the crash barrier element 40, whereby they are located in the recess 26 of the side wall of the telescopic element 20 (cf. Fig.6 ).

The roller 25 is located below the hook and behind the guide pin and comes into contact with the ground, thereby supporting the telescopic element 20 and facilitating movement of the telescopic element 20 over the ground.

However, more or fewer than the rollers 23, 24 and 25 mentioned can also be used.

The axis of rotation 33 of the hook 32 is mounted on the side walls of the telescopic element 20 , the hook 32 being arranged essentially on the front side of the telescopic element 20 . A stop bolt 36 is positioned adjacent the hook 32 . The hook 32 is provided with a bulge 37 to which a connecting bolt 38 is attached. A traction drive 80, here a cable 80, is attached to the connecting bolt 38.

Before the emergency opening is opened, the telescopic element 20 is fully extended, the telescopic element 20 is in position C. When the emergency opening is opened, the piston rod 73 of the hydraulic cylinder 52 is released figure 3 moved in. This is carried out by the connection device 70 figure 3 to a train on the traction drive 80, which is guided over a roller 81. The hook 32 is rotated about its axis of rotation by the train on the traction drive 80 until the bulge 37 reaches the stop bolt 36 . When this is reached, the telescopic element 20 moves away from the stationary element 10 until the position B of the stroke length HL of the telescopic element 20 is reached. The stroke length HL of the telescopic element 20 is the shortest distance between the hook 32 and the end face of the stationary element 10, i.e. positions B and C. This results in an opening in the roadway boundary element 100.

A thread is cut at the center of gravity SP, to which a lifting eyelet, hook or other suitable fastening element is attached can become. The cross section of figure 6 is marked in it.

the figure 6 shows a cross-section along line A of FIG figure 5 . The telescopic element 20 is arranged within the crash barrier element 40 . Both elements are essentially each formed from two separate halves. A one-piece production would also be conceivable. Both elements have a cross section that is symmetrical to a vertical plane extending through the longitudinal axis L. The side walls of the crash barrier element 40 and the telescopic element 20 are parallel to one another. The telescopic element 20 has an essentially rectangular cross-section, the side walls of the telescopic element 20 for supporting the rollers 23 having a recess 26 halfway up the telescopic element 20, which extends parallel to the longitudinal axis L. In addition, the two side walls are curved inward at the upper and lower ends to allow the rollers 24 to be stored. But it is also conceivable to attach the rollers 24 in a different way.

The base of the crash barrier element 40 has a base plate 41 which closes off the hollow profile of the crash barrier element 40 . In the figure 6 the rollers 24 are visible, which support the telescopic element 20 in relation to the crash barrier element 40 . The one in the figure 6 The rollers 24 lying below are in contact with the base of the crash barrier element 10 and roll over this base. In addition, further rollers 24 are arranged offset in the upper area of the telescopic element 20 (cf. figure 5 ), which limit the mobility of the telescopic element vertically upwards.

Claims (15)

1. Roadway delimitation element (100) comprising a stationary element (10) and a telescopic element (20), the telescopic element (20) being movable relative to the stationary element (10), the telescopic element (20) being displaceable in particular into a crash barrier element (40), the telescopic element (20) and the stationary element (10) being connected or connectable by means of a locking device (30), characterized in that the locking device (30) is connected to a fluidic device (50) by means of a force transmission element (80), in particular a traction drive (80), the locking device (30) and the telescopic element (20) being movable by the fluidic device (50), the fluidic device (50) comprising a pressure accumulator (51).
2. Roadway delimitation element (100) according to claim 1, characterized in that the roadway delimitation element (100) has fastening elements, in particular threads, which are located in particular at the body center of gravity of the roadway delimitation element (100), the fastening elements serving in particular for fastening lifting eyes.
3. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the roadway delimitation element (100) comprises a handle element (35), wherein the locking device (30) can be opened by actuating the handle element (35), wherein in particular the telescopic element (20) can be moved by using the handle element (35), in particular when the pressure accumulator (51) of the fluidic device (50) is not filled.
4. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the telescopic element (20) has a stroke length of at least 1.6 meters.
5. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the fluidic device (50) of the roadway delimitation element (100) comprises a movement element (52), in particular a hydraulic or pneumatic cylinder, a connecting device (70) and an operating element (54), in particular a release button (54).
6. Roadway delimitation element (100) according to one of the preceding claims, wherein the fluidic device (50) of the roadway delimitation element (100) is arranged outside the telescopic element (20), in particular in a crash barrier element (40).
7. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the roadway delimitation element (100) or the crash barrier element (40) comprises a closable opening (60), in particular a base (60), which can be fastened with screws, preferably to allow access to the fluidic device (50).
8. Roadway delimitation element (100) according to one of the preceding claims, wherein the fluidic device (50) or at least parts thereof is fastened on a support element (67), in particular a plate (67) with a wall thickness of 1-10 mm, in particular a plate (67) of steel, wherein the support element (67) is substantially formed in a crash barrier element (40), wherein in particular the support element (67) with the fluidic device (50) is removable from the crash barrier element (40).
9. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the fluidic device (50) of the roadway delimitation element (100) comprises a hand pump (53) with which the pressure accumulator (51) of the fluidic device (50) can be charged.
10. Roadway delimitation element (100) according to one of the preceding claims, characterized in that at least one pressure sensor is formed in the pressure accumulator (51) of the fluidic device (50), the pressure sensor preferably being connected to a data transmission unit.
11. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the fluid-technical device (50) of the roadway delimitation element (100) comprises a valve (64) and a movement element (52), in particular a hydraulic or pneumatic cylinder, wherein the speed of movement of the movement element (52) is adjustable by a valve (55), in particular the adjustment of the mass flow by the valve (55), wherein the speed of movement is adjustable in particular such that the displacement time of the telescopic element (20) over its stroke length is between 5-10 seconds.
12. Roadway delimitation element (100) according to one of the claims 5-11, characterized in that the operating element (54) of the fluidic device (50) comprises a securing pin, wherein a movement of the operating element (54) can be blocked by attaching the securing pin.
13. Roadway delimitation element (100) according to one of the preceding claims, characterized in that the roadway delimitation element comprises an opening tap (62), the opening tap (62) of the fluidic device (50) being openable and closable by an operating element (54).
14. Method for opening a roadway delimitation element (100) according to one of the preceeding claims, characterized in that first a locking device (30) is moved by a fluidic device (50), wherein the connection between telescopic element (20) and stationary element (10) is unlocked by the movement of the locking device (30), wherein after the unlocking of the connection a telescopic element (20) is moved, in particular displaced into a crash barrier element (40), by the continuation of the movement of the fluidic device (50).
15. Use of a fluidic device (50) with pressure accumulator (51) for moving a telescopic element (20) and a locking element (32) of a roadway delimitation element (100) according to any of claims 1-13.

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