EP3231941A1 - Post system - Google Patents

Abstract

Post system with a post (1), in particular a bollard and a floor anchorage (2), wherein the post (1) in the ground anchorage (2) releasably by means of a closure located on the underside of this (12) on a top side of the ground anchorage (2) the closure (12) is releasably connected by a plug-and-turn connection with the mating closure (20), wherein the post (1) below a centrally arranged guide mandrel (121) with a centered shaft and the ground anchoring (2) on the upper side further comprises a central recess (202) with a central bore complementary to the central bore, wherein the guide pin (121) has at least one laterally projecting from the shaft to the outside and the central recess (202 ) has at least one radial recess complementary to the collection, which laterally of the central Bore extends outwards.

Description

TECHNICAL AREA

The present invention relates to a post system for the attachment of posts to a substrate. Where by posts and rods, stands or the like are to be understood. For example, these are bollards, bollards, railings, safety barriers, signposts, supports for signs or trash cans, or bike racks. The underground may be, for example, a carriageway, a sidewalk or a place, outdoors or inside a building.

STATE OF THE ART

From the CH 631 769 is a Absperrpfostensystem known in which a post is detachably arranged in a ground anchorage and held by a bayonet closure of this. A locking mechanism prevents unauthorized persons from removing the bollard. A disadvantage of such a system is that the insertion of the post causes a correct alignment of the locking elements of the bayonet closure. For this purpose, the post must first be placed on the floor anchorage and then by rotation of the post a correct position must be found. The ground anchoring of such a system is susceptible to contamination, which adversely affects the insertion and locking of the post. Another disadvantage is the rigid connection between the post and the ground anchorage, as this results in a force acting on the post that at least the fasteners of the bayonet closure are destroyed. To reduce the destruction as possible on the fasteners have the fasteners Breaking points on. Such a fastener in the form of a screw is from the CH 707 526 known. A disadvantage of such a screw is the complicated production or reworking. In addition, the driving profile reaching through the head into the threaded shank causes an additional weakening, which leads to a greatly reduced screw strength.

PRESENTATION OF THE INVENTION

It is therefore an object of the invention to provide a post system, a closure, a ground anchor, a fastening and a predetermined breaking screw, which avoids the above-mentioned disadvantages.

Such a problem solves a post system with the features of claim 1, a closure with the features of claim 4, a ground anchor with the features of claim 7, a fastening with the features of claim 10 and a predetermined breaking screw with the features of claim 13.

In a preferred post system with a post and a ground anchorage of the post in the ground anchorage is detachably arranged, wherein the post by means of a lower side located on this closure on a top side of the ground anchorage mating closure is rotatably arranged. Post and ground anchors may be metal, such as steel, stainless steel, aluminum or the like, or plastic or composite, or a combination thereof. In the post, a lock can be provided at the top and a bolt, which is operatively connected to the latter by a tension element, which engages in the closing position by engaging the closure in a bolt-receiving recess in the floor anchorage. The closure is releasably connected by a plug-and-turn connection, such as a bayonet lock or a Storz coupling, with the mating closure. The post further has a centrically arranged guide pin on the underside with a central shaft and the ground anchor has on the upper side furthermore a central recess with a central bore complementary to the central bore.

Preferably, the guide pin has at least one laterally projecting from the shaft to the outside elevation and the central recess has at least one complementary to the collection radial recess which extends laterally of the central bore to the outside. This has the advantage that the post is not only centered when aligning the guide pin in the ground anchorage but also aligned. As a result, the post no longer has to be turned until at some point find the closure elements of the post in the recesses provided in the ground anchorage.

For this purpose, it is advantageous if the guide pin is longer than the closure elements and this projecting in the insertion direction. Also advantageous is the design of smooth transitions between the central shaft of the guide pin and the projections provided thereon, as well as between the central bore of the mating closure and the subsequent radial recesses, since then the alignment with little effort, almost as if done by itself ,

Preferably, the guide pin has a tip, which is realized by a conical converge of the circumference of the shaft. There is no survey in the area of the peak. Following the top, an area with at least one elevation connects. Alternatively, two, three, four or more surveys may be present. Preferably, the number of elevations of the guide pin corresponds to the number of radial recesses in the counter-closure. However, an uneven number is also conceivable. Subsequent to the area with the at least one elevation, a shaft area adjoins which has no elevations. This area allows the guide pin, and thus the whole closure, to be rotatable after insertion into the counter-lock. For this purpose, it is advantageous if the counter-closure has an upper-side area with the recesses complementary to the guide pin, and an underlying area which is designed such that it does not hinder the guide pin with its elevations from rotating about its longitudinal axis.

In an advantageous embodiment, the at least one radial recess is formed such that it serves as a guide for the at least one elevation during insertion of the guide pin into the central recess and serves as Bolzenaufnahmeausnehmung after making the plug-and-turn connection. That after rotation into the locking position, the bolt engages in one of the at least one radial recesses. For this purpose, it is advantageous if the longitudinal center axis of the bolt lies on a circle about the longitudinal central axis of the guide pin, which lies within the region of the radial recesses. This embodiment has the advantage that no additional recesses for receiving the Bozen must be provided in the counter-closure.

Alternatively and with the same idea, the bolt may be arranged such that its longitudinal central axis lies on a circle about the longitudinal central axis of the guide pin, which lies within the range of peripheral recesses which are provided for receiving closure elements. Preferably, the bolt is in the closed state of the post in an insertion of the peripheral recesses, since this is occupied only during the introduction of the closure elements of the post in the mating closure by the closure elements and is unoccupied in the closed state. The arrangement of the bolt in a peripheral region has the advantage that larger torques can be absorbed, which act on the post about its longitudinal central axis, or that of the guide pin.

Preferably, a displaceable locking core is arranged in the ground anchoring, which closes in an unconnected to the post state, the upper anchoring on the bottom anchoring recesses upwards and which can be depressurized by the guide pin and / or other elements of the plug-and-turn connection. Closing the top recesses prevents the floor anchoring from becoming clogged. For example, prevents leaves, snow or ice from clogging the recesses, making it difficult to insert the post. The locking core can be made of metal or plastic. A locking core made of metal, is particularly resistant to wear, whereby a long life can be achieved. For example, a metallic locking core is made of stainless steel or aluminum. A locking plastic core has the advantage that the Plastic has a different thermal expansion coefficient than the surrounding housing of the mating closure. This prevents or reduces the risk of icing at temperatures around or below freezing. For example, such a closure core is based on a polycarbonate blend. Advantageously, the locking core is pressed by a spring element in the upper side recesses up. For example, by a spiral or leaf spring or other known from the prior art spring elements.

The closure according to the invention can also be used for posts, rods, posts or the like, in particular barrier posts, known from the prior art, such a closure having a centrally arranged guide pin, and preferably having at least one projection projecting laterally outward from the shaft. The advantages to be achieved are the same as in the above-described post system.

The closure preferably has at least one claw as an element of the plug-in rotary connection. Other known closure elements, such as bayonet locks or Storz couplings, such as a slot and bolt combination, may also be used.

In an advantageous embodiment, the guide pin has in its interior a cable receptacle in the form of a bore which extends from the guide pin opposite side of the closure along the longitudinal axis of the guide pin in this, wherein the guide pin receptacles for elements for fixing a retaining rope in the cable receptacle are provided. The retention rope has the advantage that when the closure is separated from the remainder of the post, the closure still remains connected to the remainder of the post, so that when the closure is still locked in the mating closure, the remainder of the post does not move freely from the mating closure, resp The floor anchorage can be removed.

In order to prevent the closure from being released from the mating closure when the remainder of the post has been separated from the closure, a locking pin is preferably provided in the closure which locks with the mating closure when the closure engages Closure from the rest of the post, that is separated from the bottom of the post.

Like the closure, the ground anchoring according to the invention can also be used with posts, rods, posts or the like known from the prior art, in particular bollards, wherein such a ground anchorage has a counter-closure located on the top side thereof a centrically arranged recess with a central bore the central recess has at least one radial recess which extends laterally outward of the central bore. The advantages to be achieved are the same as in the above-described post system.

Preferably, the bottom anchoring on the upper side further comprises at least one peripheral recess as an element of the plug-in rotary connection, which has an insertion region and a closure region, wherein the insertion region is wider in the radial direction than the closure region.

As previously described in connection with the post system, a displaceable locking core is arranged in the stand-alone ground anchoring, by which the upper anchoring on the bottom anchoring recesses are closed at the top and which is held by a spring element in a position closing the recesses.

An attachment for a post or post system for attaching the closure to a bottom of the post on the underside, comprising at least one fastener, a first receptacle on the closure, and a second receptacle on the bottom, each fastener being received on its one side in the first receptacle and is recorded on the other side in the second shot. The fastener has a longitudinal axis and the closure and the bottom are braced against each other in the direction of the longitudinal axis. Preferably, the second receptacle is movable in a predetermined range substantially in the direction of the longitudinal axis. This leads to a conditional compliance of the second receptacle, which has the advantage that the force acting on the one or more fasteners forces are damped and thus damage to the fasteners can be reduced.

Preferably, the bottom has a passage for each fastening element and the second receptacle has at least one guide element which is arranged around each passage, wherein at least one fixing and at least one spring element for the corresponding fastening element are guided in each guide element. As guide elements are, for example, cages or sleeves, as a fixation example, nuts, cotter pins or bolts and as a spring element, for example, tensile, pressure or disc springs.

Preferably, the at least one spring element between the bottom and the at least one fixation is arranged. In such an arrangement, the fixation is printed by the spring element from the ground and there is an increase in the force acting on the fixation force when the fixation is moved in the direction of the ground.

In a preferred embodiment, a predetermined breaking screw for fastening a closure to a bottom of a post is used, which has a threaded shaft with an external thread and a head with a driving profile, wherein the predetermined breaking screw has a predetermined breaking point area on the threaded shaft, wherein on the opposite side of the head of the predetermined breaking point area , is subsequently formed on these at least one recess. The predetermined breaking screw should prevent that when exceeding a permissible force on the closure, this is damaged. The predetermined breaking point area ensures that the predetermined breaking screw breaks before the closure is damaged. After the head of the screw has been removed from the threaded shank, it is important that the threaded shank can still be removed. For this purpose, the at least one recess is provided on the threaded shaft.

Preferably, the predetermined breaking point region is subsequently formed on the head. This arrangement ensures that the recess is accessible after the separation of the head from the direction in which the head was previously located. With a tool can be engaged in this recess to remove the threaded shaft. Instead of a recess, two, three, four, five, six or more recesses may be provided. Thus, for example, six recesses may be formed such that a conventional hexagon can be used to the Unscrew threaded shaft. Alternatively, a plurality of recesses may be provided, which may be formed, for example, as Torx.

In an alternative embodiment, the at least one recess is designed such that it penetrates the threaded shank transversely to its longitudinal central axis. Then, the head is separated, creating a slot which extends transversely through the threaded shaft. As a tool then a conventional flat-head screwdriver can be used.

Further embodiments are given in the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

eine perspektivische Ansicht eines erfindungsgemässen Pfostensystems vor dem Einführen eines Absperrpfostens in eine Bodenverankerung,

Fig. 2

eine Teilschnittansicht des Pfostensystems durch einen Verschlussbolzen und ein Befestigungselement bei eingeführtem Absperrpfosten,

Fig. 3

eine perspektivische Unteransicht eines erfindungsgemässen Verschlusses,

Fig. 4

eine perspektivische Oberansicht des Verschlusses der Figur 3,

Fig. 5

eine perspektivische Oberansicht eines erfindungsgemässen Gegenverschlusses,

Fig. 6

eine perspektivische Teilschnitt-Unteransicht des Gegenverschlusses der Figur 5,

Fig. 7

eine perspektivische Teilschnitt-Oberansicht einer erfmdungsgemässen zweiten Aufnahme,

Fig. 8

eine perspektivische Ansicht einer erfindungsgemässen Sollbruchschraube und

Fig. 9

eine Teilschnittansicht des Pfostensystems durch einen Sperrbolzen bei eingeführtem Absperrpfosten.

Preferred embodiments of the invention will be described below with reference to the drawings, which are given by way of illustration only and are not to be interpreted as limiting. In the drawings show:

Fig. 1

3 is a perspective view of a post system according to the invention before the insertion of a barrier post into a ground anchor,

Fig. 2

a partial sectional view of the post system by a closure pin and a fastener with inserted bollard,

Fig. 3

a perspective bottom view of a closure according to the invention,

Fig. 4

a top perspective view of the closure of FIG. 3 .

Fig. 5

a perspective top view of an inventive mating closure,

Fig. 6

a partial perspective sectional bottom view of the counter-closure of FIG. 5 .

Fig. 7

a perspective partial sectional top view of a second inventive recording,

Fig. 8

a perspective view of an inventive predetermined breaking screw and

Fig. 9

a partial sectional view of the post system by a locking pin with inserted bollard.

DESCRIPTION OF PREFERRED EMBODIMENTS

The FIG. 1 shows a perspective view of a post system according to the invention prior to insertion of a bollard 1 in a ground anchorage 2. The bollard 1 has a tube 10, the tube 10 in the lower area closing bottom 11, a bottom 11 arranged on the bottom closure 12, and a tube 10 in the upper region closing lid 13.

Between the cover 13 and the upper end of the post 1, an intermediate piece 14 can optionally be arranged. The intermediate piece 14 is an annular component and connects at its one end substantially seamlessly to the tube 10 of the post 1 and has at its other end a receptacle for the cover 13 is formed. In the intermediate piece 14 recesses 140 are provided. These recesses 140 can be used, for example, to receive a chain therein, which has the advantage that no eyelets on the post are needed. The construction with the recesses 14 is less expensive than those with attached to the pipe of the post eyelets. In addition, such a cover 13 can be used without chains without eyelets disturbing on the post side of this off and survive.

Inside the box a lock 8 is arranged in an upper area, which can be operated from the outside and in which a key 80 can be inserted for actuation. The lock 80 is operatively connected via a locking rod 70 with a closure pin 7. Also in the post interior are the second receptacles 30 for receiving the fasteners 4 of the closure 12, as shown in the FIG. 2 are shown.

The FIG. 2 shows a partial sectional view of the post system by a closure pin 7 and a fastener in the form of a predetermined breaking screw 4 with imported bollard 1. The bollard 1 is by means of its closure 12 in the mating closure 20 of the ground anchor 2 in engagement. Claws 122 of the closure 12 form in the closure region 2011 of peripheral recesses 201 a positive connection with a correspondingly complementary geometry on the mating closure 20. The insertion of 2010 peripheral recesses 201 is released in the closed state, ie there is no claw 122 in the area.

The guide pin 121 is guided in the locked state in the ground anchor 2 through a central bore 2020 of a central recess 202. As a rotation of the locking pin 7 is guided in a bolt passage 110 in the bottom 11 and a collinear passage 127 in the closure 12 and engages in the mating closure 20 in a radial recess 2021 of the central recess 202. To solve the engagement, the key 80 in Lock 8 are actuated, whereby the closure pin 7 is pulled by means of the locking rod 70 from the radial recess 2021. Alternatively, the closure pin 7 may be arranged so that it can engage in one of the peripheral recesses 201. If the locking pin 7 is located farther away from the center of the radius, the same torque can be absorbed by the same bolt, or a smaller bolt can be used to absorb the same torque.

The bollard 1 has in its lower part a bottom 11, which is embedded in the tube 10 and fixedly connected thereto. Below the bottom 11 and then in alignment with the closure 12 is arranged. The closure 12 is fixedly mounted by means of a fastening 3 on the bottom 11, wherein the attachment 3 has a first receptacle 123 on the closure 12, a second receptacle 30 on the bottom 11 and a predetermined breaking screw 4. Details of the closure 12 are in the FIGS. 3 and 4 shown details of the second receptacle 30 in the FIG. 7 and details of the predetermined breaking screw in the FIG. 8 , The head 42 of the predetermined breaking screw 4 is in the first Receiving 123 arranged on the closure 12. It is in the first receptacle 123 shown here is a counterbore, which has the countersink on the side of the closure 12, on which the guide pin 121 is arranged. Thus it can be avoided that the screw 4 protrudes an underside of the closure 12. In the bottom 11, a passage 111 is provided, which has a substantially same diameter as the counterbore 123 in the closure 12. The diameter is dimensioned so that there is sufficient lateral play, that the tube 10 with the bottom 11 with respect to the closure 12th can be inclined by up to 15 degrees, preferably up to 10 degrees, preferably up to 8 degrees, without the screw jammed.

In the interior of the post 1, ie inside the tube 10, the second receptacle 30 is arranged on the bottom 11. The second receptacle 30 has guide elements 31 in the form of threaded bolts. Three such threaded bolts 31 are arranged around a respective through hole 111 of a predetermined breaking screw 4. Between the three threaded bolts 31, a stack of disc springs 35 is arranged, which is laterally guided by the threaded bolt 31. On the disk spring stack 35, a nut 34 is arranged, which serves as a fixation 34 of the predetermined breaking screw 4. About the nut 34, a stop plate 32 is provided, which supports the nut 34 upwards and at the same time serves as a rotation for the nut 34. The stopper plate 32 is secured by nuts 33, which are screwed to the free ends of the threaded bolt 31. A breakaway screw 4 can be inserted through the first receptacle 123 in the closure 12, pushed through the passage 111 in the bottom 11 until it reaches the nut 34 where it can be screwed. The more the screw 4 is tightened, the more the disk springs 35 are compressed and the greater becomes the clamping force. The screw 4 is not fully tightened, so that a lifting of the bottom 11 of up to 15 millimeters, preferably up to 10 millimeters, preferably up to 8 millimeters with respect to the closure 12 is possible. As the distance between bottom 11 and closure 12 increases, the clamping force increases until all the cup springs are fully compressed. If this distance is further increased, the longitudinal force acting on the predetermined breaking screw 4 increases. If the force exceeds the permitted value of the predetermined breaking screw, it breaks in the predetermined breaking point region 44 and the screw head 42 is separated from the threaded shank 40. The three second shots 30 are regularly, that is arranged at an angle of 120 degrees to each other with respect to the central axis of the bottom 11 about this.

The FIG. 3 shows a perspective bottom view of an inventive closure 12 and the FIG. 4 a corresponding top view. The closure 12 essentially has a circular disk 120, which is formed substantially flat on its upper side and which has formed on its underside in the extension of the disk center axis a guide pin 121 which extends away from the disk 120 down. The guide pin 121 has substantially the shape of an arrowhead with a bolt-shaped shaft 1210, which at its free end, ie on the opposite side of the disc 120, a conically converging tip 1211 has. Subsequent to the tip 1211, three wing-shaped elevations 1212 are arranged rotationally symmetrically with respect to the center axis of the guide pin 121 or of the disk 120. The elevations 1212 are in the form of vanes, the radial extent of which increases continuously from the tip towards the disk 120 until it reaches a value which corresponds approximately to the radius of the shank 1210. The diameter of the shaft 1210 measures 5 to 20 millimeters, preferably 8 to 15 millimeters. That is, the elevations 1212 extend in cross section from the center of the shaft 5 to 35 millimeters, preferably 10 to 25 millimeters radially outward. The angle between the longitudinal central axis of the shaft 1210 and the outer contour of the elevations 1212 is between 8 and 20 degrees, preferably 10 to 15 degrees. Subsequently, the expansion decreases again, so that between the area with the elevations 1212 and the disc 120 is an area that has no elevations. The decrease of the expansion toward the disk 120 is stronger than the increase on the side of the tip. The angle between the outer contour of the surname and the outer contour of the decrease is 90 to 150 degrees, preferably 110 to 130 degrees. The width of the individual elevations in cross section measure 3 to 10 millimeters, preferably 5 to 8 millimeters. The length of the area without elevation is matched to the thickness of the support plate 203 of the mating closure 20 and measures 10 to 50 millimeters, preferably 15 to 35 millimeters.

From the top of the disc 120, a cable receiver 126 is arranged in the form of a bore which extends from the top to the central axis of the disc 120 in the Guide mandrel 121 extends into it. Laterally on the shank 1210 threaded bores 124 are provided, in which screw elements can be screwed for clamping a wire rope.

In a peripheral, circumferentially close region of the disc 120, three rotationally symmetrically distributed claws 122 extend from the disc 120 downwards. Each pawl 122 is an elevation 1220 extending from the disk 120 parallel to its axis of rotation and has substantially the shape of a ring segment in a cross-section parallel to the disk 120. The radial dimension of each ring segment is 5 to 15 millimeters, preferably 5 to 10 millimeters. The radial dimension in the region of the elevations 1220 is substantially twice as large as that of the ring segments, i. 5 to 30 millimeters, preferably 10 to 20 millimeters. A free end of the claw is converging towards the free end in the circumferential direction. That The free end has chamfers 1223 on both sides in the circumferential direction. In a region adjoining the disk 120, the claw has a recess 1221 on the side directed radially outwards, so that the claw is made thinner in this area in the radius direction. A directed against the disc 120 surface of the recess 1221 is formed parallel to the disc 120 and a surface of this opposite surface sealing surface 1222 of the recess 1221 is helical. The helical shape causes the closure surface 1222 of the post to rise when the post is tightened, i. during rotation of the post, braced against a corresponding closure surface 2013 of the mating closure 20. Alternatively, the closure surface 1222 may be formed parallel to the disc 120. As long as at least one of the closure surfaces 1222, 2013 is helically formed, takes place when tightening the post tension.

In the disc 120 three rotationally symmetrical distributed counterbores 123 are formed, wherein the counterbores on the bottom, that are formed on the side of the guide mandrel 121. Furthermore, in the disc 120, a through hole 127 and a locking pin receptacle 125 are arranged, whose longitudinal central axes are located on a common circle around the disc center. The Durchgansbohrung 127 has a diameter which is so matched to the diameter of the locking bolt 7, that this easily in the Through hole 127 can be performed. The locking pin receptacle 125 has a larger diameter seen from the top of the disc, as on the opposite side. The resulting paragraph forms a lower stop for a locking pin 90 as in the FIG. 9 is pictured, which can be inserted into the locking pin receptacle 125. The diameter of the bolt 90 and the receptacle 125 are coordinated so that the bolt 90 in the exception 125 falls under the action of gravity falls down. That is, the bolt is loose in the receptacle. On the disc top, adjacent to the locking pin receptacle 125, two threaded bores are provided, into which screws can be inserted, which prevent the loose bolt from falling out of the receptacle when the closure 12 is turned upside down. In addition, the bolts prevent the bolt from being removed without authorization when the shutter 12 is disconnected from the remainder of the shut-off post.

The ground anchoring 2, as used in the FIG. 2 is shown in a sectional view, has a mating closure 20, which forms a complementary counterpart to the closure 12. Individual times of the mating closure 20 are in the FIGS. 5 and 6 shown. The mating closure 20 is placed on a tubular bottom sleeve 21, partially embedded in this and firmly connected to her.

The FIGS. 5 and 6 show a perspective top view, or a partial perspective sectional view of a counter-closure 20 according to the invention. The mating closure 20 is substantially hat-shaped and has on the upper side a support plate 203 and a subsequent thereto, circumferential side wall 2014, which extends from the periphery of the support plate 203 extends below. The support plate 203 is essentially a circular disk and the side wall is a pipe sleeve.

In the center of the support plate 203, a central recess 202 is arranged, which extends along the longitudinal center axis of the mating closure 20 through the support plate 203 and forms a passage from the interior of the mating closure to the outside. The central recess 202 has a central bore 2020 whose diameter is matched to that of the shank 1210 of the guide mandrel 121, that the guide pin 121 can be guided easily pushed in the central recess 202. From the central bore 2020, three radial recesses 2021 extend radially outward. The radial recesses 2021 are rotationally symmetrical and uniformly distributed around the central bore 2020. The dimensions of the radial recesses 2021 are matched with the elevations 1212 of the guide mandrel 121 such that the elevations 1212 can be easily guided in the radial recesses 2021.

In the support plate 203 are arranged around the central recess 202, spaced from this peripheral recesses 201. The peripheral recesses 201 are rotationally symmetrical and uniformly arranged around the central recess 202, ie at an angle of 120 degrees to each other. In a cross-section parallel to the support plate 203, each peripheral recess 201 has substantially the shape of a ring segment, each peripheral recess 201 being divided into an insertion area 2010 and a closure area 2011. Each peripheral recess 201 extends circumferentially over an angular area which is half in the introductory area 2010 and the closure area 2011. The cross-section of the insertion area 2010 is matched to the cross-section of the elevation 1220 of the claw 122 of the closure 12 in such a way that it can easily be inserted into the insertion area 2010. The cross section of the closure region 2011 is matched to the cross section in the region of the recess 1221 of the claw 122 of the closure 12 in such a way that the closure 12 can easily be guided rotatably from the insertion region 2010 into the closure region 2011. The inner radius of the insertion area 2010 corresponds to the inner radius of the closure area 2011. The outer radius of the closure area 2011 is smaller than the outer radius of the insertion area 2010, creating a heel in the radius direction between the two areas. However, the shoulder does not extend over the entire height of the mating closure 20. In the closure region 2011 there is a recess 2012, which has the same dimensions in cross-section as the heel and which causes the outer diameter in the region of the recess, the outer diameter of the lead-in area 2010 corresponds. Through the recess 2012 creates a closure surface 2013, which is spaced from the support surface 203 and this is arranged opposite. The closure surface 2013 is helical. Alternatively, the closure surface 2013 parallel to Support surface 203 may be formed. The closure surface 2013 of the mating closure 20 is designed to be complementary to the closure surface 1222 of the closure 12.

Like in the FIG. 2 can be seen, a ring 22 is disposed on the inside of the support plate 203 of the mating closure 20. The ring 22 is then arranged on the peripheral recesses 201 on the inner sides thereof and extends from the support plate 203 substantially parallel to the side wall 204 of the mating closure 20. The ring 22 is designed such that it is an inner for the introduced claws 122 of the closure 12 Leadership forms. The length of the ring is sized so that it can guide the claws 122 until fully inserted. The ring 22 widens in diameter along its longitudinal central axis from the platen 203 in the direction away from the plate. The ring 22 serves on the one hand as a guide and on the other hand as a dirt deflector. In addition, the ring 22 acts as a reinforcing element for the support plate 203. In the illustrated embodiment, the ring 22 is a single part, which is connected to the inside of the support plate 203. Alternatively, the platen 203 and the ring 22 may be integrally formed with each other.

A tube 23 is also arranged on the inside of the support plate 203 of the mating closure 20. The tube 23 is arranged concentrically around the longitudinal center axis of the mating closure 20 and thus also around the central recess 202 of the mating closure 20. The tube diameter is dimensioned such that the tube 23 completely encloses the central recess 202. The tube 23 extends from the inside of the support plate 203 to beyond the mating closure 20 and substantially the same distance as a lower edge of the bottom sleeve 21 of the ground anchorage 2. The tube 23 serves as a dirt deflector and on the other hand as a guide for the lock core 5 Um to prevent a rotation of the closure core 5, the tube 23 is formed as a square tube. Alternatively, a round tube with an anti-twist device can be used. The tube 23 is formed as a single part, which is connected to the inside of the support plate 203. Alternatively, the platen 203 and the tube 23 may be integrally formed with each other.

Around the tube 23 is arranged a substantially hat-shaped closure core 5, wherein the locking core 5 has a bottom 50 and a circumferential side wall 51. In the installed state, the closure core 5 is arranged with a complementary to the tube 23 recess in the bottom 50 around the tube 23 and is guided by this so that only a movement in the longitudinal direction is possible. The circumferential side wall 51 has interruptions and the cross sections through the side wall 51 in a plane parallel to the bottom, corresponding to the cross sections of the peripheral recesses 201 of the mating closure 20. The length of the side wall 51 is dimensioned so that the bottom 50 abuts the ring 22, when the portions of the side wall 51 extend into the peripheral recesses 201 and an upper end surface of the side wall portions 51 is substantially flush with the surface of the support plate 203. In the bottom 50 of the closure core 5 drainage openings 52 are provided, through which water can drain, which has passed through the mating closure 20 in the closure core 5.

At the lower free end of the tube 23, a ring plate 24 is arranged and at least partially fixed thereto. A stop, for example in the form of a cotter pin or a bolt, prevents the ring plate 24 from being moved beyond the free end, away from the mating closure 20. The opposite direction can also be blocked, but not necessarily. The ring plate 24 serves a compression spring 6 as a lower stop. The outer diameter of the annular plate 24 is greater than the outer diameter of the compression spring. The compression spring is disposed between the ring plate 24 and the lock core 5 and causes the lock core 5, and the portions of the side wall 51 are pressed into the peripheral recesses 201 of the mating closure.

The FIG. 8 shows a perspective view of a novel predetermined breaking screw 4. The inventive predetermined breaking screw 4 corresponds to a conventional countersunk screw with a hexagon socket 43, which has been reworked. Alternatively, this can also be a special screw without post-processing. A post-processing is the predetermined breaking point 44, which is attached in the area subsequent to the head 42 in the threaded shaft 40. The predetermined breaking point 44 is in the illustrated form a circumferential groove, which locally reduces the diameter of the threaded shaft 40. The groove is then arranged on the head 42, but it may also be spaced from this formed in the threaded shaft 40. A Further post-processing represent the recesses 45 arranged laterally from the threaded shank 40 following the predetermined breaking point 44. Shown are four recesses 45 which are arranged rotationally symmetrically about the longitudinal central axis L of the predetermined breaking screw 4. After the separation of the screw head 42 from the threaded shaft 40, the four recesses form a square in cross section, which can be taken with a corresponding complementary tool.

Alternatively, other cross sections may be realized, such as those with three, five, six or more edges. As a further alternative, an oval cross-section can be realized.

As a further alternative, a predetermined breaking screw instead of the recesses 44, which extend substantially on the surface of the screw shaft, also have recesses which extend through the screw shaft. Thus forms a single recess, which extends transversely to the screw longitudinal axis L, with respect to the screw shaft frontal slot when the screw head is cut off. In this slot then a slot screwdriver can be inserted to unscrew the screw shaft from its recording. Alternatively, two or more such continuous recesses may be arranged regularly or irregularly distributed with respect to the circumference of the screw and thus form different engagement shapes for a corresponding tool after detaching the screw head. For example, two relative to the longitudinal center axis L mutually perpendicular, continuous recesses, after the separation of the screw head forms an engagement form for a cross-head screwdriver.

The FIG. 9 shows a partial sectional view of the post system by a locking pin 90 with inserted bollard 1. In order to prevent the closure 12 of the bollard 1 can be uncoupled from unauthorized when the closure 12 has been separated from the rest of the bollard 1, in the assembled state of the locking pin 90th disposed between the bottom 11 and the closure 12 of the post 1. The locking pin 90 has a shaft which has a circumferential flange 91 at a distance from the two free ends. One of the two free ends is tapered and the other free end has a clamping member 92 in the mold a rubber ring, which is arranged in a groove. The bolt 90 is received in the assembly in a designated locking pin receptacle 125 in the closure 12 and secured by two screws. However, other retaining elements of a different number may be used. In the bottom 11, a further locking pin receptacle 112 is provided, in which the free end of the locking pin 90 can be received with the clamping element. The diameter of the locking pin receptacle 112 in the bottom 11 is dimensioned such that the locking pin 90 is clamped by the clamping element in the locking pin receptacle 112 and can not fall down by gravity. Only when the bottom 11 is separated from the closure 12, the locking pin 90 can fall down into a recess provided in the mating closure 20. In the illustrated embodiment, the bolt 90 falls into one of the radial recesses 2021 of the central recess 202. Alternatively, the bolt can fall into a separate recess or into one of the peripheral recesses 201. With the arrangement in the peripheral recess larger torques can be absorbed or with a smaller bolt the same torque. LIST OF REFERENCE NUMBERS 1 Bollards 2013 closure surface 10 pipe 202 Centric recess 11 ground 2020 Centric bore 110 Locking bolt through 2021 Radial recess 111 passage 203 platen 112 Locking bolt receptacle 204 Side wall 12 shutter 21 ground socket 120 disc 22 ring 121 guide pin 23 pipe 1210 shaft 24 ring plate 1211 top 3 attachment 1212 survey 30 Second shot 122 claw 31 guide element 1220 survey 32 attack 1221 recess 33 fixation 1222 closure surface 34 fixation 1223 chamfer 35 spring element 123 First recording 4 Breaking screw 124 threaded hole 40 threaded shaft 125 Locking bolt receptacle 41 thread 126 cable receptacle 42 head 127 passage 43 driving profile 13 cover 44 Breaking point 14 connecting piece 45 recess 140 recess 5 lock core 2 ground anchor 50 ground 20 against closure 51 Side wall 201 Peripheral recess 52 drainage 2010 insertion 6 feather 2011 closure area 7 locking bolt 2012 recess 70 locking bar 8th lock 91 flange 80 key 92 clamping element 9 Tether L longitudinal axis 90 locking pin

Claims (15)

Post system with a post (1), in particular a bollard (1) and a floor anchorage (2), wherein the post (1) in the ground anchorage (2) is detachably arranged, wherein the post (1) by means of a lower side located on this closure (12) is rotatably arranged on a top closure on the floor anchorage (2) mating closure (20), wherein in the post (1) above a lock (8) and below with this by a tension element (70) in operative connection standing bolt (7 ), which in the closed position penetrates the closure (12) engages in a Bolzenaufnahmeausnehmung in the ground anchor (2), wherein the closure (12) by a plug-and-turn connection to the mating closure (20) is detachably connected, wherein the Post (1) on the underside further comprises a centrally arranged guide pin (121) with a central shaft (1210) and the ground anchor (2) on the upper side further comprises a central recess (202) with a centric bore (2020) which is complementary to the central shaft (1210), characterized in that the guide pin (121) has at least one projection (1212) protruding laterally from the shaft (1210) and the central recess (202) has at least one for elevation (1212) complementary radial recess (2021), which laterally of the central bore (2020) extends to the outside. Post system according to claim 1, wherein the at least one radial recess (2021) is designed such that it serves as a guide for the at least one elevation (1212) during insertion of the guide pin (121) into the central recess (202) and after the production of the Plug-and-turn connection serves as Bolzenaufnahmeausnehmung. Post system according to claim 1 or 2, wherein in the ground anchorage (2) a displaceable closure core (5) is arranged, which in an unconnected to the post (1) state on the ground anchorage (2) on the upper side located recesses (201, 202) closes towards the top and which can be depressurized by the guide pin (121) and / or other elements of the plug-in rotary connection. A post (1) closure (12) of a post system of claim 1, wherein the closure (12) comprises a centrally disposed guide pin (121), characterized in that the guide pin (121) extends at least one laterally outwardly of the shaft (1210) having protruding elevation (1212). A closure (12) according to claim 4, wherein the closure (12) comprises at least one claw (122) as an element of the plug-in pivot connection. A closure (12) according to any one of claims 4 or 5, wherein the guide pin (121) comprises a cable retainer (126) in the form of a bore extending from the side of the closure opposite the guide pin (121) along the longitudinal axis (L) of the shutter Guide mandrel (121) extends into this, wherein on the guide pin (121) for receiving elements for securing a retaining rope (90) in the cable receptacle (126) are provided. Floor anchor (2) for use with a post (1) of a post system of claim 1, wherein a mating closure (20) located on the top of the ground anchor (2) has a centrally located recess (202) with a central bore (2020) characterized in that the central recess (202) has at least one radial recess (2021) which extends outwards from the central bore (2020). Floor anchor (2) according to claim 7, wherein the floor anchorage (2) on the upper side further comprises at least one peripheral recess (201) as an element of the plug-and-turn connection, which has an insertion (2010) and a closure region (2011), wherein the Insertion region (2010) in the radial direction wider than the closure region (2011) is configured. Floor anchorage (2) according to claim 7 or 8, wherein in the ground anchorage (2) a displaceable locking core (5) is arranged, by which on the ground anchorage (2) upper side recesses (201, 202) are closable at the top and which is held by a spring element (6) in a position closing the recesses (201, 202). Attachment (3) for a post (1) of a post system of claim 1 for attaching the closure (12) to a bottom (11) of the post (1) on the underside, comprising at least one fastening element (4), a first receptacle (123) on A closure and a second receptacle (30) on the bottom (11), wherein each fastening element (4) is accommodated on its one side in the first receptacle (123) and is received on the other side in the second receptacle (30) Fastening element (4) has a longitudinal axis (L) and the closure (12) and the bottom (11) in the direction of the longitudinal axis (L) are braced against each other, characterized in that the second receptacle (30) substantially in the direction of Longitudinal axis (L) is movable in a predetermined range. A fastener (3) according to claim 10, wherein the bottom (11) has a passage (111) for each fastener (4) and the second receptacle (30) comprises at least one guide member (31) disposed about each passage (111) , wherein at least one fixing (34) and at least one spring element (35) for the corresponding fastening element (4) are guided in each guide element (31). Attachment (3) according to claim 10 or 11, wherein the at least one spring element (35) between the bottom (11) and the at least one fixing (34) is arranged. A breakaway screw (4) for attaching a closure (12) to a bottom (11) of a post (1) of a post system of claim 1, comprising a threaded shank (40) having an external thread (41) and a head (42) with a driving profile (43), wherein the predetermined breaking screw (4) has a predetermined breaking point region (44) on the threaded shank (40), characterized in that on the head (42) opposite side of the predetermined breaking point region (44), then at least one recess (45) is formed. Predetermined breaking screw (4) according to claim 13, wherein predetermined breaking point region (44) is subsequently formed on the head (42). Predetermined breaking screw (4) according to claim 13 or 14, wherein the at least one recess (45) is formed such that it penetrates the threaded shank (40).

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