Passage barrier and method for producing a passage barrier

Abstract

A passage barrier has first and second guide elements that cooperate to define a gate region, through which a person passes from an entrance region into a passage region. The passage barrier has a drive drive unit. The drive has an output unit including a hollow shaft having an outer shell surface. The hollow shaft has a barrier element mount formed for fixing a plate-shaped barrier element on the hollow shaft and is formed substantially in a U-shape. The barrier element is fixed between the limbs of the barrier element mount, wherein at least two adhesive grooves are provided on the inside at the base of the barrier element mount. At least two opposing adhesive grooves are provided for receiving an adhesive on the inside on both limbs of the barrier element mount and opposing grooves are formed on the inside at distal ends of the barrier element mount.

Claims

1. A passage barrier comprising: guide elements, wherein said guide elements comprise a first guide element and a second guide element, wherein the first guide element and the second guide element cooperate to define a gate region configured such that a person passes from an entrance region into a passage region; at least one barrier element, wherein the barrier element is arranged inside the gate region, wherein the barrier element, the first guide element, and the second guide element cooperate such that passage of a person from the entrance region into the passage region is configured to be prevented or enabled; and a drive having a drive unit and an output unit, wherein the drive unit, the output unit, and the barrier element are operatively connected such that the barrier element is movable by means ofusing the drive unit into a position closing the gate region and into a position releasing the gate region, wherein the output unit comprises a hollow shaft, wherein the hollow shaft has an outer shell surface and a barrier element mount, wherein the barrier element mount is formed for fixing a plate-shaped barrier element on the hollow shaft, wherein the barrier element mount is formed substantially in a U-shape and the barrier element is fixed between the limbs of the barrier element mount, wherein at least two adhesive grooves configured to receive an adhesive are provided on the inside at the base of the barrier element mount and at least two opposing adhesive grooves are provided for receiving the adhesive on the inside on both limbs of the barrier element mount and at least two opposing grooves are formed on the inside at the distal ends of the barrier element mount.

2. The passage barrier, according to claim 1, wherein the barrier element mount is arranged on the outer shell surface of the hollow shaft and the barrier element mount is formed integrally with the hollow shaft.

3. The passage barrier, according to claim 1, wherein the hollow shaft is formed as an extrusion or a cast part.

4. A method for manufacturing a passage barrier, wherein the passage barrier has guide elements, wherein said guide elements comprise a first guide element and a second guide element, wherein the first guide element and the second guide element cooperate to define a gate region configured such that a person passes from an entrance region into a passage region, the passage barrier further includes at least one barrier element, wherein the barrier element is arranged inside the gate region, wherein the barrier element, the first guide element, and the second guide element cooperate such that passage of a person from the entrance region into the passage region is configured to be prevented or enabled, the passage barrier has a drive having a drive unit and an output unit, wherein the drive unit, the output unit, and the barrier element are operatively connected such that the barrier element is movable using the drive unit into a position closing the gate region and into a position releasing the gate region, wherein the output unit comprises a hollow shaft, wherein the hollow shaft has an outer shell surface and a barrier element mount, wherein the barrier element mount is formed for fixing a plate-shaped barrier element on the hollow shaft, wherein the barrier element mount is formed substantially in a U-shape and the barrier element is fixed between the limbs of the barrier element mount, wherein at least two adhesive grooves configured to receive an adhesive are provided on the inside at the base of the barrier element mount and at least two opposing adhesive grooves are provided for receiving an adhesive on the inside on both limbs of the barrier element mount and at least two opposing grooves are formed on the inside at the distal ends of the barrier element mount the method including the following steps: applying an adhesive into the adhesive grooves of the barrier element mount using a nozzle, which has nozzle openings in the number of adhesive grooves, inserting the plate-shaped barrier element into the barrier element mount, and hardening of the adhesive.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further measures that improve the disclosure will be outlined in greater detail below with the description of preferred exemplary embodiments of the disclosure on the basis of the figures. In this case, the features mentioned in the claims and in the description may each be essential to the disclosure individually by themselves or in any combination. In this case, it must be noted that the figures have only a descriptive character and are not intended to limit the disclosure in any way.

(2) They show:

(3) FIG. 1 passage barrier in perspective view

(4) FIG. 2 drive in perspective view

(5) FIG. 3 drive in longitudinal section view

(6) FIG. 4 drive unit in perspective view

(7) FIG. 5 output as a hollow shaft in top view

(8) FIG. 6 hollow shaft with torque transmission element in top view

(9) FIG. 7 torque transmission element in perspective view

(10) FIG. 8 hub and hub covering in sectioned view

(11) FIG. 9 arrangement of the drive unit in the hollow shaft in top view

(12) FIG. 10 drive unit, hollow shaft and bearing element in perspective view

(13) FIG. 11 locking apparatus and hollow shaft in perspective view

(14) FIG. 12 profile attachment element in perspective view

(15) FIG. 13 profile attachment element with vertical and horizontal profiles

(16) FIG. 14 profile attachment element in a sectioned representation

(17) FIG. 15 barrier element mount in cross-sectional view

(18) FIG. 16 production of an adhesive bond between barrier element and barrier element mount

(19) FIG. 17 barrier element mount with inserted barrier element

(20) FIG. 18 passage barrier with vertically running profile, locking apparatus, stop disc, hollow shaft in an exploded representation

DETAILED DESCRIPTION OF THE DRAWINGS

(21) FIG. 1 shows a passage barrier 1, with the passage barrier 1 having guide elements 2a, 2b, with the guide elements 2a, 2b comprising a first guide element 2a and the guide elements 2a, 2b comprising a second guide element 2b, with the first guide element 2a and the second guide element 2b cooperating in such manner that they define a gate region 3, through which a person passes from an entrance region 4 into a passage region 5. The guide elements 2a, 2b are formed substantially in a wall-like manner and are arranged parallel to one another. As shown in FIG. 1, the guide elements 2a, 2b can be formed substantially identically in order to allow a modular-like structure of a passage barrier 1.

(22) In the entry direction, symbolized in FIG. 1 by the arrow, the entrance region 4 is located in front of the guide elements 2a, 2b, through which a user of the passage barrier 1 accesses the gate region 3. When passing through the gate region 3 of the passage barrier 1, the user then enters into the passage region 5 in the entry direction behind the guide elements 2a, 2b.

(23) The passage barrier 1 also comprises at least one barrier element 6a, 6b, with the barrier element 6a, 6b being arranged inside the gate region 3. The barrier element 6a, 6b, the first guide element 2a and the second guide element 2b cooperate in such manner that the passage of a person from the entrance region 4 into the passage region 5 can be prevented and/or enabled. In the represented exemplary embodiment, one barrier element 6a, 6b is in each case arranged on each of the guide elements 2a, 2b. The barrier elements 6a, 6b are formed in the shape of door leaves. In the represented exemplary embodiment, the barrier elements 6a, 6b are formed from a transparent material, such as for example glass or plastic.

(24) The barrier elements 6a, 6b are arranged in a barrier element mount of the drive 7, as is explained in more detail in the following figures.

(25) The passage barrier 1 also has a drive 7, with the drive 7 having a drive unit 8 and with the drive 7 having an output unit 9, with the drive unit 8, the output unit 9 and the barrier element 6a, 6b being operatively connected in such manner that the barrier element 6a, 6b is movable by means of the drive unit 8 into a position closing the gate region 3 and into a position releasing the gate region 3.

(26) The drive 7 is explained in more detail on the basis of FIG. 2 and FIG. 3. The output unit 9 comprises a hollow shaft 10, with the hollow shaft 10 having an outer shell surface 11 and the hollow shaft 10 having an inner shell surface 12, with the inner shell surface 12 and the drive unit 8 being configured in such manner that the inner shell surface 12 surrounds the drive unit 8 at least in sections, preferably, as shown, completely.

(27) The drive unit 8 is formed as an electric motor in the represented exemplary embodiment.

(28) The hollow shaft 10 also has a barrier element mount 13, with the barrier element mount 13 being formed to fix a barrier element 6a, 6b on the hollow shaft 10. The barrier element mount 13 is arranged on the outer shell surface 11 of the hollow shaft 10 and formed integrally with the hollow shaft 10. To this end, the hollow shaft 10 is formed as an extrusion or cast part in the exemplary embodiment shown.

(29) The barrier element mount 13 is formed substantially U-shaped, and the barrier element 6 (not shown) can be fixed between the limbs of the U-shaped barrier element mount 13.

(30) The hollow shaft 10 is fixed by means of bearing elements 20a, 20b on the profile 39 in such manner that a rotation of the hollow shaft 10 with respect to a guide element 2a, 2b (not shown) is made possible. The bearing elements 20a, 20b are each arranged on a distal end of the hollow shaft 10. The fixing can in particular be configured in such manner that it is possible to displace the bearing elements 20a, 20b inside the profile 39. It is also advantageous to configure the bearing elements 20a, 20b in such manner that they can be fixed on or in the profile 39 so as to be detachable.

(31) A locking apparatus 19 can be arranged on a distal end of the hollow shaft 10, as represented in FIG. 2, between the hollow shaft 10 and a bearing element 20b in order to prevent a movement of the hollow shaft 10 and consequently of the barrier element 6, in particular mechanically and/or electrically and/or magnetically and therefore to exclude any unauthorized opening and/or closing of the barrier element.

(32) FIG. 3 shows a longitudinal sectioned view of the drive 7 known from FIG. 2. It can be seen that the drive unit 8 is formed as an electric motor and is arranged in the upper head region of the hollow shaft 10. The drive unit 8 is dimensioned in such manner that it can be pushed into the hollow shaft 10 along the inner shell surface 12 and is securely positioned in the hollow shaft 10. More detail will be provided on this later.

(33) The positioning of the drive unit 8 along the axis of rotation of the hollow shaft 10 is defined by means of a torque reception element 14 which can also be pushed into the hollow shaft 10. The torque transmission element 14 can be inserted in a frictional and/or positive manner into the hollow shaft 10 in order to implement a torque transmission from the drive unit 8 via the torque transmission element 14 to the hollow shaft 10.

(34) It can also be inferred from FIG. 3 that the drive unit 8 has a drive axis which coincides with the axis of rotation of the hollow shaft 10. The configuration of the drive 7,

(35) as it is shown in FIGS. 2 to 3 in its arrangement inside the hollow shaft 10, is explained further on the basis of FIG. 4. It can be seen that the drive unit 7 is formed in a tubular shape and that torque transmission elements 18a, 18b are each arranged on the distal ends of the tubular drive unit 7. The torque transmission element 18b is connected to the output shaft of the drive unit 7, while the torque transmission element 18a is fixed on the housing of the drive unit 7 that is not rotating. It is preferred that the drive 7 is arranged in the hollow shaft 10 in this configuration.

(36) The hollow shaft 10 is described below in more detail on the basis of FIG. 5.

(37) It can be seen that the inner shell surface 12 has a torque reception element which is formed as a torque reception toothing 15. The torque reception toothing 15 is formed integrally with the inner shell surface 12 of the hollow shaft 10. If the hollow shaft 10 has preferably been formed by means of an extrusion process, the torque reception toothing 15 of the hollow shaft 10 extends over its entire length of the inner shell surface 12.

(38) It can also be seen that the torque reception toothing 15 is formed of torque reception webs 16a-1, 16a-2, 16a-3, 16b-1, 16b-2, 16b-3 and torque reception grooves 17a-1, 17a-2, 17a-3, 17b-1, 17b-2, 17b-3 arranged between the torque reception webs 16a-1, 16a-2, 16a-3, 16b-1, 16b-2, 16b-3.

(39) It is also discernible that the torque reception webs 16a-1, 16a-2, 16a-3, 16b-1, 16b-2, 16b-3 comprise a first group of torque reception webs 16a-1, 16a-2, 16a-3 and a second group of torque reception webs 16b-1, 16b-2, 16b-3, with the first group of torque reception webs 16a-1, 16a-2, 16a-3 being geometrically different from the second group of torque reception webs 16b-1, 16b-2, 16b-3. In the particularly preferred configuration shown, torque reception webs 16a-1, 16a-2, 16a-3 of the first group and torque reception webs 16b-1, 16b-2, 16b-3 of the second group are each opposite one another. A corresponding torque transmission element 18 (not shown) can be inserted into the hollow shaft 10 in exactly the correct position by means of this configuration. More detail will be given on this below on the basis of FIG. 6.

(40) FIG. 7 shows a torque transmission element 18 which is inserted into the torque reception toothing 15 of the hollow shaft 10. The torque transmission element 18 is formed as a hub, which has a hub inner toothing 28 and a hub outer toothing 29.

(41) The hub outer toothing 29 comprises torque transmission grooves 30a-1, 30a-2, 30a-3, 30b-1, 30b-2, 30b-3, which are formed to be engaged with the corresponding torque reception webs 16a-1, 16a-2, 16a-3, 16b-1, 16b-2, 16b-3 in the inserted state of the hub toothing 29 in the hollow shaft 10.

(42) It is also discernible that torque transmission grooves 30a-1, 30a-2, 30a-3, 30b-1, 30b-2, 30b-3 comprise a first group of torque transmission grooves 30a-1, 30a-2, 30a-3 and a second group of torque transmission grooves 30b-1, 30b-2, 30b-3, with the first group of torque transmission grooves 30a-1, 30a-2, 30a-3 being geometrically different from the second group of torque transmission grooves 30b-1, 30b-2, 30b-3. In the particularly preferred configuration shown, torque transmission grooves 30a-1, 30a-2, 30a-3 of the first group and torque transmission grooves 30b-1, 30b-2, 30b-3 of the second group are each opposite one another.

(43) The torque transmission element 18 preferably also has a positioning aid 33 which visually indicates a positioning of the torque transmission element 18 with respect to the hollow shaft 10 and/or the barrier element mount 13. The positioning aid 33 can be formed as an opening, borehole, colored marking, engraving, web or similar. The positioning aid 33, as shown in FIG. 8, is particularly preferably arranged on a common axis with the torque reception groove 30a-3 and 30b-1 and the axis of rotation of the hub inner toothing 28.

(44) In FIG. 8, a particularly preferred configuration of a torque transmission element 18 is depicted in a sectioned representation. The torque transmission element 18 comprises a hub 26 and a hub covering 27 here. The hub 26 and the hub covering 27 are formed here of different materials, which is indicated by the hatchings in FIG. 8. The hub covering 27 is preferably formed of an elastic material and the hub of a non-elastic material. The hub covering 27 is formed of a rubber-like material, in particular India rubber, with natural India rubber particularly preferably being used. Moreover, the hub is preferably formed of a metallic material, in particular of steel.

(45) The hub 26 has a triangular base contour, with the corners of the triangular base contour being replaced for concave circular-arc-shaped grooves. In this way, a particularly good fixing of the hub covering 27 and the hub 26 is in particular achieved.

(46) The hub also preferably has openings 34a-f, through which the hub covering 27 engages in order to thus bring about an improved fixing of the hub covering 27 and of the hub 26.

(47) The hub outer toothing 28 is formed on the hub covering 27. As already explained in FIG. 7, the hub outer toothing 29 comprises torque transmission grooves 30a-1, 30a-2, 30a-3, 30b-1, 30b-2, 30b-3, which are formed to be engaged with the corresponding torque reception webs 16a-1, 16a-2, 16a-3, 16b-1, 16b-2, 16b-3 in the inserted state of the hub toothing 29 in the hollow shaft 10.

(48) As a result the hub outer toothing 28 is manufactured from an elastic material in the exemplary embodiment shown in FIG. 8, a torque transmission element 18 configured in this manner can particularly advantageous absorb torque peaks and vibrations and as a result ensure a particularly safe and low-noise operation of the drive 7. This configuration also offers the advantage of providing simple, but effective torque overload protection in order to prevent mechanical damage in particular to the torque reception toothing on the inner shell surface of the hollow shaft.

(49) In addition to the elastic configuration of the covering of the torque transmission element 18, the special geometric formation of the torque transmission element 18 also improves the torque overload protection and the smooth running of the drive of the passage barrier 1. To this end, the torque transmission element 18 has a first group of torque transmission grooves 30a-1, 30a-2, 30a-3, which have a circular-arc-shaped contour and the second group of torque transmission grooves 30b-1, 30b-2, 30b-3 which have a rectangular contour. The opening width Bk of the circular-arc-shaped groove contour of the first group of torque transmission grooves 30a-1, 30a-2, 30a-3 is preferably greater than the opening width Br of the rectangular groove contour of the second group of torque transmission grooves 30b-1, 30b-2, 30b-3, with the opening width Bk of the circular-arc-shaped groove contour in particular being 4 to 10 times, in particular preferably 5 to 8 times greater than the opening width Br of the rectangular groove contour.

(50) FIG. 9 shows the arrangement of a drive unit 8 in the hollow shaft 10. It can be seen that the drive unit 8 in no way has direct contact points with the hollow shaft 10, whereby a transmission of vibrations and structure-borne noise from the drive unit 8 to the hollow shaft 10 is prevented and a low-noise operation of the passage barrier 1 is made possible. As a result, the mechanical and therefore also acoustic coupling preferably takes place via a hub 26, which is formed with an elastic hub covering 27, between the drive unit 8 and the hollow shaft 10, the smooth running of the passage barrier 1 can be further improved.

(51) FIG. 10 shows a bearing element 20a which is couplable with a torque transmission element 18 of the drive unit 8 which is arranged in the hollow shaft 10. To this end, the bearing element 20a has an opening with an inner shell surface 21. The inner shell surface 21 is configured in such manner that it is formed as a torque reception element 22 for torque-transmitting coupling with the torque transmission element 18. The torque reception element 22 of the bearing element 20a therefore comprises a torque reception toothing 23 which is configured to engage into a complementary torque transmission toothing 29 of the torque transmission element 18.

(52) The torque reception toothing 23 of the bearing element 20a has a plurality of torque reception webs 24 and torque reception grooves 25 which are formed on the inner shell surface 21 of the bearing element 20a.

(53) The dimensioning and geometric configuration of the torque reception webs 24 and torque reception grooves 25 of the bearing element 20a correspond substantially to the dimensioning and geometric configuration of the torque reception webs 16 and torque reception grooves 17 of the hollow shaft 10.

(54) The bearing element 10 can be fixed, for example via a screw connection, on a guide element 2 of the passage barrier 1, so as to be detachable.

(55) According to a further preferred configuration of the disclosure, a locking apparatus 19 can be provided on a distal end of the hollow shaft 10 which is shown in FIG. 11 and is described below.

(56) The locking apparatus 19 is preferably formed as a toothed brake. The locking apparatus 19 has a torque transmission toothing 35, which is formed such that it can engage into the complementary torque reception toothing 15 of the hollow shaft 10. In this way, the locking apparatus 19 can be coupled with the hollow shaft 10 in a torque-transmitting manner by simply inserting it into the hollow shaft. The locking apparatus can be configured in particular as a toothed brake.

(57) FIG. 12 shows a profile attachment element 36 which is used in a guide element 2a, 2b in order to provide an attachment of at least one profile of a guide element 2a, 2b on the base of a building structure.

(58) The profile attachment element 36 has a vertical profile mount 37 for mounting a vertically running profile 39 (represented in FIG. 13) on the profile attachment element 36.

(59) The profile attachment element 36 also has a horizontal profile feedthrough 38 for feeding a horizontally running profile 40 (represented in FIG. 13) through the profile attachment element 36.

(60) Moreover, means 41a, 41b are provided on the profile attachment element 36 to mechanically fix electrical components 43 (represented in FIG. 13) of the passage barrier 1.

(61) The profile attachment element 36 has a substantially square spatial shape, with the longitudinal sides of the profile attachment element 36 extending in the vertical direction in the mounted state. The elements of the profile attachment element 36, which are arranged on the sides of the square profile attachment element 36 facing the gate region 3 of the passage barrier 1, are marked with the additional reference numeral a or b.

(62) In particular, sensors (not represented) for detecting objects within the gate region 3 can also be arranged on and/or in the horizontally running profile 40, which runs through the horizontal profile feedthrough 38 of the profile attachment element 36.

(63) Furthermore, the drive 7 of the passage barrier 1 can be arranged on and/or in the vertically running profile 39, it is for example shown in FIG. 2.

(64) The profile attachment element 36 is formed as a cast part, in particular a metallic die-cast part.

(65) Furthermore, the profile attachment element 36 has a first cable feedthrough 42a and a second cable feedthrough 42b, with the first cable feedthrough 42a and the second cable feedthrough 42b being located opposite one another and each being arranged on the sides of the profile attachment element 36 facing the gate region. Electrical lines of an electrical component 43 (represented in FIG. 13) are in particular guided through the cable feedthroughs 42a, 42b from outside of the profile attachment element 36 into the profile attachment element 36.

(66) The opposing cable feedthroughs 42a, 42b are separated from one another by a partition wall 44, 44a, 44b. The partition wall 44, 44a, 44b runs substantially diagonally through the square profile attachment element 36 as is easily visible in FIG. 14. In this way, it can be ensured that cables can be guided from an electrical component 43 only in a predetermined space of the profile attachment element 36 or of a guide element 2a, 2b, whereby the risk of possible incorrect wiring of electrical components 43 in the passage barrier 1 can be minimized.

(67) FIG. 15 shows the hollow shaft 10 with a barrier element mount 13, with the barrier element mount 13 being formed for fixing a plate-shaped barrier element 6a, 6b (not shown) on the hollow shaft (10). The barrier element mount 13 is formed substantially U-shaped and the barrier element 6 is fixed between the limbs of the U-shaped barrier element mount 13, which is shown in greater detail in FIG. 17.

(68) At least two adhesive grooves 52a, 52b are provided for receiving an adhesive 55 on the inside at the base of the U-shaped barrier element mount 13. Furthermore, at least two opposing adhesive grooves 53a, 53b are provided for receiving an adhesive 55 on the inside on both limbs of the U-shaped barrier element mount 13.

(69) Furthermore, opposing grooves 54a, 54b are formed on the inside on the distal ends of the U-shaped barrier element mount 13.

(70) A method for producing a materially-bonded connection between the barrier element mount 13 and a barrier element 6 is explained in more detail on the basis of FIG. 16. Firstly, a nozzle 56 is inserted into the barrier element mount 13 and then an adhesive is introduced into the adhesive grooves 52a, 52b, 53a, 53b of the barrier element mount 13 by means of a nozzle 56. The nozzle 56 has nozzle openings 57a, 57b, 57c, 57d corresponding with the number of adhesive grooves 52a, 52b, 53a, 53b, with the nozzle openings 57a, 57b, 57c, 57d being configured such that they apply the adhesive 55 into the corresponding adhesive grooves 52a, 52b, 53a, 53b.

(71) After removing the nozzle 56 from the barrier element mount 13, the plate-shaped barrier element 6 is inserted into the barrier element mount 13 and the adhesive 55 is hardened. This state is shown in FIG. 17.

(72) FIG. 22 shows the passage barrier according to the disclosure with vertically running profile 39, with a locking apparatus 19 arranged on the profile 39, a stop disc 56 couplable to the locking apparatus 19, a hollow shaft 10 couplable to the locking apparatus 19 in an exploded representation, with the right image showing the arrangement with stop element 32 arranged on the locking apparatus 19.

(73) A locking apparatus 19 is arranged on the vertically running profile 3. The locking apparatus 19 has a torque transmission toothing 35, which engages into a complementary torque reception toothing 15 of the hollow shaft 10. A circular stop disc 56 is also present, which has a toothing engagement 57, which is engaged with the torque transmission toothing 35 of the locking apparatus 19.

(74) The stop disc 56 has on its stop disc circumferential surface 59 a stop lug 58 which protrudes radially from the stop disc circumferential surface 59. The stop lug 58 cooperates with a stop element 32 arranged on the vertically running profile 39 in such manner that a rotation of the stop disc 56 is delimited by the stopping of the stop lug 58 against the stop element 32.

(75) The stop disc 56 and the stop lug 58 are formed monolithically.

(76) The torque transmission toothing 35 has three teeth in the embodiment shown which protrude from the locking apparatus 14 parallel to the vertically running profile 39. The plurality of teeth of the torque transmission toothing 35 is arranged in a circle with a regular, identical circle division.

(77) It is easily discernible on the basis of FIG. 22 that the stop disc 56 comprises a plurality of toothing engagements 57 corresponding to the plurality of teeth of the torque transmission toothing 35 which are arranged in a circle with a regular identical circle division. The toothing engagements 57 are arranged as openings in the stop disc 56 through which the torque transmission toothing 35 engages.

(78) In the exemplary embodiment shown, the stop lug 58 of the stop disc 56 is arranged opposite a toothing engagement 57. In this configuration shown, a barrier element arranged on the hollow shaft 10 can be rotated in two directions by 90° before the stop lug 58 abuts against the stop element 32 and the opening angle of the barrier element is thus mechanically delimited.

(79) The stop element 32 is arranged in the vertically running profile 39 so as to be displaceable. It has a semi-circular recess which is configured in such manner that it comprises the stop disc 56.

(80) When assembling the passage barrier, the following steps are then carried out in any order: Arrangement of the locking apparatus 19 on the vertically running profile 39 of a guide element, Arrangement of the stop element 32 on the vertically running profile 39 of the guide element, Arrangement of a stop disc 56 on the locking apparatus 19 and subsequent arrangement of the hollow shaft 10 on the locking apparatus 19