Railing element, scaffolding having a railing element of this type, and method for disassembling a railing element of this type

Abstract

The invention relates to a railing element (10.1) for safeguarding working or standing surfaces, comprising at least one railing strut (12.1) and comprising coupling elements (14.1) disposed at a first end (16.1.1) of the railing strut (12.1) and coupling elements (1.41) disposed at a second end (16.1.2) of the railing strut (12.1), the coupling elements being provided for detachably fastening the railing element (10.1) to and between two spaced scaffolding posts (15.1). The first coupling element (14.1) associated with the first end (16.1.1) of the railing strut (12.1) and / or the second coupling element (14.1) associated with the second end (16.1.2) of the railing strut (12.1) and / or the railing strut has at least one elongate guide (23.1), to which an associated connecting means (20.1) is coupled. The invention also relates to scaffolding (11.1) having a railing element (10.1) according to the invention and to a method for assembling a railing element (10.1) according to the invention.

Description

[0001] RAILING ELEMENT, SCAFFOLDING WITH SUCH A RAILING ELEMENT AND METHOD FOR DISASSEMBLING SUCH A RAILING ELEMENT

[0002] The invention relates to a railing element that can be mounted in advance for securing work or standing areas, in particular on a scaffold, a scaffold with such a railing element and a method for dismantling such a railing element.

[0003] Depending on legal regulations, the erection or assembly of scaffolding must be carried out in such a way that a level of scaffolding following a level of scaffolding erected below it is secured with at least one railing to prevent falling before persons, such as scaffold erectors, enter the work or standing areas of the next higher level. For this purpose, the railing in question can be mounted in advance. A railing that has been mounted in advance is also referred to as a pre-mounted railing.

[0004] Railings or scaffoldings with railings that can be mounted in advance are known, for example, from WO 02 / 057569 A1 and from WO 98 / 07934 A1 (EP 0 918 912 A1).

[0005] Pre-mounted railings or scaffolding with pre-mounted railings are also known from the applicant's German patent application No. 10 2021 101 768.8 and the parallel international application PCT / DE2021 / 100922, as well as from the applicant's German patent application DE 10 2021 133 941.3 and from the applicant's German patent application No. 10 2022 101 720.6, all of which had not yet been published as of the filing date of the present patent. These patent applications disclose differently designed railing rod ends for detachable and articulated attachment to differently designed railing fastening means or fastening elements of scaffolding posts. Each railing rod end can also be labeled or is labeled with a coupling element. Each railing fastener or fastening element can also be referred to as a connecting element. The railing fasteners or fastening elementsFastening elements are disclosed in the form of rosettes or perforated discs, as well as in the form of other support elements or suspension elements, particularly with rectangular or round cross-sections. The vertically positioned scaffolding posts can also be designated or referred to as scaffolding stands or vertical posts or vertical supports. Differently designed suspension hooks are disclosed as coupling elements for the detachable and articulated attachment of the railing elements to the railing fastening means or fastening elements of the scaffolding posts. The content of the applicant's four aforementioned patent applications is incorporated in full here.

[0006] The aforementioned railings cannot be removed from the completed scaffold unless the pre-erected vertical scaffolding posts are loosened or dismantled. Furthermore, these railings must be installed in advance during assembly. However, practice has shown that, if necessary, some railings must be removed again without loosening or dismantling the vertical posts or vertical scaffolding uprights or significantly changing their position.

[0007] Pre-mounted railings and pre-mounted railings are also known from EP 3 012 385 A1. Therein, vertical posts are disclosed which are provided with perforated discs at regular intervals for the detachable fastening of scaffolding components such as scaffolding ledgers. The scaffolding ledgers can also be used as railings. Each railing consists of an elongated, straight tube having two tube ends extending away from each other. A first connection head is articulated to the first tube end of the tube ends by means of a first shaft element in the form of a bolt or shaft of a standard hexagon screw. A second connection head is articulated to the second tube end of the tube ends by means of a second shaft element in the form of a bolt or shaft of a standard hexagon screw. Each connection head has an upper head section and a lower head section.between which a slot is formed, open to the front and sides, for attachment to an associated perforated disc of the associated scaffolding post. Each connecting head has an upper wedge opening on its upper head section and a lower wedge opening on its lower head section, through which a connecting wedge can be inserted to lock the connecting head to the perforated disc. The connecting wedge is captively connected to the connecting head. It can be moved upwards from a locking position, in which it extends through the upper wedge opening, through a hole in the perforated disc, and through the lower wedge opening, into an unlocking position, in which the connecting wedge still protrudes through the upper wedge opening, but in which its lower wedge end is moved upwards above the perforated disc into a release position.in order to be able to remove the connection head from the perforated disc or to attach the connection head to the associated perforated disc. The connection wedge has a holding part in the form of a notch or a protruding element. The holding part is designed to releasably suspend the connection wedge from the associated pipe end of the railing pipe. The pipe has two parallel elongated openings at each pipe end, each in the form of an elongated hole, which extend parallel to the longitudinal axis of the pipe and which, viewed in a transverse direction perpendicular to the longitudinal axis, are aligned with one another. Each connection head and each pipe end are articulated to one another by means of a hexagon screw which extends through the respective two elongated holes. The connection head connected to the hexagon screw can be moved along the respective elongated hole of the railing rod pipe from a first position in which the connection wedge,When hooked onto the tube end of the tube, it is held in a first wedge position, in which the mounting space between the upper and lower head sections is free to accommodate the perforated disc, and is transferred into a locking position. For this purpose, the connecting head is designed to move along the tube when the tube moves along the corresponding elongated holes, thereby releasing the connecting wedge from the tube end of the tube, allowing the connecting wedge to enter one of the holes in the perforated disc and through it into and through the lower wedge opening, thereby locking the connecting head by means of the connecting wedge to or with the perforated disc and the scaffold tube of the associated scaffolding post. In simple terms, the elongated holes in the tube of the railing rod serve exclusively toFor the purpose of an advance assembly of the railing, the tube, together with the connecting wedge suspended at its upper tube end via the holding part of the connecting wedge, can be moved upwards relative to the corresponding elongated holes so far that the connecting wedge is pulled upwards into a release position so far that a collision-free insertion of the connecting head with its insertion slot onto the associated perforated disc of the associated scaffolding post is possible, and that subsequently, i.e. after the connecting head has been inserted onto the perforated disc, in an intermediate assembly position in which the lower wedge end of the connecting wedge is in a position in which it is located over a desired hole of the holes of the associated perforated disc in order to be able to achieve a locking there,The railing rod tube can be moved back along the corresponding elongated holes relative to the hexagon screw and thus relative to the connecting head, to a position in which the upper tube end and the retaining part of the connecting wedge are disengaged, so that the connecting wedge can then, due to gravity, fall downwards with its lower wedge end through the associated hole in the perforated disc into a locking position in which the railing rod of the railing is locked via the connecting head and the connecting wedge to the associated perforated disc of the associated scaffolding post, although not yet firmly clamped. Subsequently, or even beforehand, the railing rod, which is locked against lifting at this railing rod end with the associated perforated disc, can be locked with another perforated disc of another scaffolding post.which can then be mounted on an already installed scaffold post by being raised upwards. This allows for a pre-mounted railing in which the railing rod is in a horizontal installation position. In this position, the railing can be dismantled either by loosening at least one of the two horizontally adjacent scaffold posts or by knocking out or pulling out the connecting wedge of a connecting head of the connecting heads until it reaches a release position in which the connecting head can be removed from the associated perforated disc of the scaffold post.This can be achieved exclusively by lateral pivoting of the affected connection head. However, due to the design, removing the respective connection head by pivoting it downwards or upwards relative to the perforated disc is impossible. These examples apply exclusively to scaffolding standards with special perforated discs as connecting elements and special railing rods with special cast metal connection heads as coupling elements, which are equipped with special connecting wedges. To attach these railing rods to the perforated discs, a separate tool in the form of a special connecting wedge is required, with which the affected connection head must be attached to a perforated disc.

[0008] A railing element that can be mounted in advance according to the preamble of claim 1 is known from DE 101 11 976 A1 and from the parallel WO 02 / 072977 A1. A suspension hook that can pivot about a transverse axis is provided on at least one tube end of a railing tube of the respective railing element as a rosette engagement means for hooking into a hole rosette of a vertical support of two horizontally adjacent vertical supports. In the advanced-mounted use position of the respective railing element, in which the respective railing tube is in a horizontal installation position, said suspension hook is locked against pivoting about the transverse axis by means of a locking sleeve mounted in the railing tube on its inner wall and axially displaceable relative to the latter.The locking sleeve is held in a locked position by the spring force of a spring, in which position an axial fixing projection of the suspension hook engages into the interior of the sleeve, engaging behind the inner wall of the sleeve. For the purpose of dismantling the railing element without loosening at least one of the two horizontally adjacent vertical supports, the axial locking sleeve can be moved into the interior of the scaffolding tube into an unlocked position, either with the aid of an actuating lever attached to it and referred to as a handle, or with the aid of a suitable actuating tool, against the spring force of the spring. In this unlocked position the fixing projection of the suspension hook is released from the front edge of the axial locking sleeve, so that the suspension hook is released for pivoting upwards relative to the railing tube.In the raised position of the suspension hook, a lower front edge of the locking sleeve presses against a sloping upper surface of the fixing projection, thereby exerting a force on the suspension hook that maintains the open position of the suspension hook. The basic idea of ​​these embodiments is that at least one of the suspension hooks serving as rosette engagement means, starting from the use position of the pre-mounted orA railing element mounted in advance, in which the railing element extends perpendicular to the longitudinal axes of the two associated, horizontally adjacent vertical supports, can be pivoted in such a way that the suspension hook can be removed upwards or downwards from the associated perforated rosette, whereupon, by pivoting the railing element upwards or downwards, the rosette engagement means at the other tube end of the railing tube can also be separated from the perforated rosette of the other vertical support located there, without any vertical support sections or vertical supports having to be dismantled. If pivoting rosette engagement means are provided at both ends of a railing element, this can be removed from the position of use without significant pivoting from the horizontal from both perforated rosettes.These embodiments also relate exclusively to scaffolding posts with special perforated discs as connecting elements and special, complex and damage-prone designs of railing rods with integrated, spring-loaded, axially displaceable locking sleeves and with special suspension hooks.

[0009] It is an object of the invention to provide a railing element which can be mounted in advance for securing work or standing areas, in particular on a scaffold, as well as a scaffold with such a railing element and a method for dismantling such a railing element, which can be produced simply and inexpensively, which has a comparatively simple construction and which can be used for a wide range of differently designed connecting elements of scaffolding stands and of differently designed coupling means, in particular suspension hooks, in order to be able to be mounted as a leading railing in a position of use in which the railing strut is arranged in a horizontal, in particular essentially horizontal, installation position, in particular perpendicular to the longitudinal axes of the associated, horizontally adjacent scaffolding stands, starting from which the railing element can be removed without loosening orat least one of the scaffolding uprights can be dismantled without dismantling or without a relevant change in position.

[0010] This object is achieved by claims 1, 13 and 14. Accordingly, the object of the invention with regard to the railing element for securing work or standing areas, in particular on a scaffold, is achieved in that the railing element has a railing strut, in particular a railing rod or a railing bar or a railing tube, and coupling elements arranged at its ends for releasably fastening the railing element to and between two spaced, vertical scaffolding uprights, wherein the elongated railing strut extends along its longitudinal axis, and wherein a first coupling element of the coupling elements is arranged at a first end of the ends of the railing strut and a second coupling element of the coupling elements is arranged at a second end of the ends of the railing strut pointing away from the first end, and wherein the first coupling element is designed such that it,preferably without a separate or separately handled aid, to a first connecting element of a first scaffolding upright, the scaffolding upright is articulated, in particular pivotable, attachable or fastened relative to the first connecting element, and wherein the second coupling element is designed such that it is articulated, in particular pivotable, attachable or fastened relative to the second connecting element, preferably without a separate or separately handled aid, to a second connecting element of a second scaffolding upright, the scaffolding upright is articulated, in particular pivotable, attachable or fastened relative to the second connecting element, and wherein the railing element, starting from a, preferably first, assembly and disassembly position, is pivotable in advance, in particular in an (imaginary) pivot plane containing the, preferably parallel, longitudinal axes of the first and second scaffolding posts, or is pivotable in an (imaginary) pivot plane that is arranged parallel to an (imaginary) plane that contains the,preferably parallel, longitudinal axes of the first and second scaffolding uprights, is pivotable into a use position to form a leading railing, in which the railing strut is arranged in a horizontal, in particular substantially horizontal, installation position and in which the first coupling element is releasably and articulately attached to the first connecting element of the first scaffolding upright and in which the second coupling element is releasably and articulately attached to the second connecting element of the second scaffolding upright, and wherein the railing strut is connected at its first end by means of a captively attached first connecting means to the first coupling element and / or at its second end by means of a captively attached second connecting means to the respective second coupling element. At least one locking means is provided for each railing element,which is in a locking position in which the coupling element assigned to it and the railing strut are locked relative to each other by means of the locking means against pivoting, preferably about a connecting axis of the assigned connecting means. The respective locking means can be transferred from the respective locking position into an unlocking position or removed from the respective railing element, so that the respective coupling element can be pivoted relative to the respective railing strut, preferably about the respective connecting axis of the respective assigned connecting means.to enable dismantling of the respective railing element without loosening or dismantling and / or without changing the position of at least one scaffolding stand of the respective scaffolding stands. According to the invention, the first coupling element assigned to the respective first end of the respective railing strut and / or the second coupling element assigned to the respective second end of the respective railing strut and / or the respective railing strut has / have at least one elongated guide for the respectively assigned connecting means, to which the respectively assigned connecting means is coupled and which is each designed and arranged such that in the respective unlocking position of the respectively assigned locking means, or when the respective locking means is removed from the respective railing element, the respectively assigned coupling element and the respective railing strut both relative to each other,preferably about the respective connection axis of the respectively assigned connecting means, so that a kink can be formed between the respectively assigned coupling element and the respective railing strut, and are also, preferably simultaneously, displaceable relative to one another along the respective elongated guide, in each case into a disassembly position or in each case into a, preferably second, assembly and disassembly position, starting from which the respective railing element can be detached from the respective connecting elements of the respective scaffolding stands without loosening or without disassembly or without a relevant change in position of at least one scaffolding stand of the respective scaffolding stands, in particular first from the respectively assigned connecting element of the respectively assigned scaffolding stand and subsequently from the respective other connecting element of the respective other scaffolding stand,is dismantled. This means that the respective railing element can be dismantled without loosening or dismantling or without a relevant change in the position of at least one scaffolding post.

[0011] According to a preferred embodiment, the at least one elongated guide can be a linear guide and / or an elongated opening, an elongated perforation, or an elongated hole. This enables a particularly simple and robust construction and advantageous displacement conditions.

[0012] According to a preferred development, it can be provided that the associated connecting means and / or the associated locking means is / are formed with a shaft, with a pin, with a bolt or with a screw.

[0013] According to a preferred embodiment, the associated connecting means and the associated locking means can be designed identically. This allows the railing element to be manufactured and designed even more simply and economically.

[0014] According to a particularly preferred embodiment, the associated locking means can be designed such that it can be released exclusively with the aid of a special tool, preferably one that is not generally commercially available, for the purpose of transferring it into the unlocked position and / or can be transferred into the unlocked position or removed from the railing element. This ensures that the locking means cannot be released inadvertently or without authorization, or can only be transferred into the unlocked position or removed from the railing element by authorized persons for the purpose of transferring it into the unlocked position.

[0015] According to a particularly preferred embodiment, it can be provided that the at least one elongated guide is provided on or in the associated coupling element, preferably and extends along a longitudinal axis of a connecting part of the coupling element which is articulatedly coupled to the railing strut by means of the connecting means, and that the railing strut is provided with at least two first openings, preferably through-holes, in particular bores, which, preferably viewed in the direction of the longitudinal axis of the railing strut, are arranged offset from one another at a first distance, wherein at least one first opening of the at least two first openings of the railing strut serves to at least partially receive the connecting means coupled to the associated coupling element,and wherein at least one second first opening of the at least two first openings serves to at least partially accommodate the associated locking means locked to the associated coupling element. This results in a particularly easy-to-manufacture, simple, and robust construction.

[0016] According to a further development, it can be provided that the associated coupling element has at least one second opening, preferably an opening, in particular a bore, which, in the locking position of the locking means locked with the associated coupling element, overlaps or is aligned with the at least one second first opening of the at least two first openings of the railing strut, so that the associated locking means engages both in the at least one second opening of the associated coupling element and in the at least one second first opening of the railing strut.

[0017] According to an alternative embodiment, it can be provided that the at least one elongated guide is provided on or in the railing strut, preferably and extends along the longitudinal axis of the railing strut, and that the associated coupling element is provided with at least two third openings, preferably through-holes, in particular bores, which are arranged offset from one another at a third distance, wherein at least a first third opening of the at least two third openings of the coupling element serves to at least partially receive the connecting means coupled to the railing strut, and wherein at least a second third opening of the at least two third openings of the coupling element serves to at least partially receive the associated locking means locked to the associated coupling element.

[0018] It can be provided that the railing strut has at least one fourth opening, preferably an opening, in particular a bore, which, in the locking position of the locking means locked with the associated coupling element, overlaps or is aligned with the at least one second third opening of the at least two third openings of the associated coupling element, so that the associated locking means engages both in the at least one fourth opening of the railing strut and in the at least one second third opening of the associated coupling element.

[0019] According to a preferred development, the first coupling element and the second coupling element can be designed identically. This can increase the installation reliability of the railing element. Furthermore, the railing element can be manufactured more economically and is designed to be simpler and more cost-effective.

[0020] It can be provided that the railing strut is designed symmetrically to a central plane of symmetry, which extends in the longitudinal center of the railing strut perpendicular to the longitudinal axis of the railing strut. This allows the above advantages to be further improved. The object of the invention is achieved with regard to the scaffolding in that it has several scaffolding uprights, several connecting elements, and at least one railing element according to the invention, preferably mounted in advance in one or the use position, or in that it is constructed from several scaffolding uprights, several connecting elements, and at least one railing element according to the invention, wherein a first scaffolding upright of the scaffolding uprights has a first connecting element of the connecting elements, to which the first coupling element of the railing element is articulated and detachably attached, preferably without a separate aid or without an aid that must be handled separately.and that a second scaffolding stand of the scaffolding stands has a second connecting element to which the second coupling element of the railing element is articulated and detachably fastened, preferably without a separate aid or without a separately handled aid, and wherein the railing element is mounted in a use position, preferably leading, in which the railing strut is arranged in a horizontal installation position, and wherein the coupling elements of the railing element and the connecting elements of the scaffolding stands are each designed to be coordinated with one another in such a way,that the railing element cannot be dismantled from the connecting elements of the scaffolding uprights without loosening or changing the position of at least one scaffolding upright of the scaffolding uprights or without transferring the associated locking means from its locking position to its unlocking position or without removing the locking means from the railing element from the connecting elements of the scaffolding uprights, in particular first from the associated connecting element of the associated scaffolding upright of the scaffolding uprights and subsequently from the other connecting element of the other scaffolding upright of the scaffolding uprights.

[0021] The object of the invention is achieved with regard to the method for dismantling a railing element according to the invention, preferably mounted in advance in a use position, of a scaffolding according to the invention in that the railing element is fastened to the first connecting element of the first scaffolding upright by means of the first coupling element of the coupling elements of the railing strut arranged in the horizontal installation position in a detachable and articulated manner, in particular in the unlocking position of the locking means, relative to the first connecting element, in particular in an (imaginary) pivoting plane containing the preferably parallel longitudinal axes of the first and second scaffolding uprights, or is fastened pivotably in an (imaginary) pivoting plane which is arranged parallel to an (imaginary) plane containing the preferably parallel longitudinal axes of the first and second scaffolding uprights,and that the railing element is releasably and articulately attached to the second connecting element of the second scaffolding upright by means of the second coupling element of the coupling elements of the railing strut, in particular in the unlocking position of the locking means, relative to the second connecting element, in particular in an (imaginary) pivoting plane containing the preferably parallel longitudinal axes of the first and second scaffolding uprights, or is pivotably attached in an (imaginary) pivoting plane arranged parallel to an (imaginary) plane containing the preferably parallel longitudinal axes of the first and second scaffolding uprights, wherein the locking means is in its locking position, in which pivoting of the coupling element of the coupling elements assigned to it, preferably about the connecting axis of the assigned connecting means, relative to the railing strut is prevented,so that the railing element cannot be dismantled without loosening or changing the position of at least one scaffolding upright or without transferring the locking means from its locking position to its unlocking position or without removing the locking means from the railing element, wherein the locking means is either transferred from the locking position to the unlocking position or is removed from the railing element, whereupon the coupling element associated with the locking means and the railing strut are pivoted relative to one another, preferably downwards, preferably about the connecting axis of the associated connecting means, and are displaced relative to one another, preferably simultaneously, along the elongated guide, so that a kink is formed between the associated coupling element and the railing strut,whereupon the associated coupling element is removed from the associated connecting element of the associated scaffolding upright, whereupon the other coupling element is also removed from the associated connecting element of the associated other scaffolding upright. As a result, the railing element is then dismantled without loosening or dismantling, or without changing the position of at least one scaffolding upright.

[0022] Further aspects, features and advantages of the invention can be found in the following description, in which preferred embodiments of the invention are described with reference to the drawings.

[0023] They show:

[0024] Figs. 1.1 to 1.3 show a section of a scaffolding with a leading-mounted first railing element according to a first embodiment, wherein,

[0025] Fig. 1.1 shows the first railing element in its first position of use, in which its first railing strut is in a horizontal first installation position, and wherein

[0026] Fig. 1.2 shows the first railing element after removal of the first locking means in a first disassembly intermediate position, and wherein

[0027] Fig. 1 .3 shows the first railing element in a first disassembly position.

[0028] Figs. 2.1 to 2.3 show a section of a scaffolding with a second railing element mounted in advance according to a second embodiment, wherein

[0029] Fig. 2.1 shows the second railing element in its second position of use, in which its second railing strut is in a horizontal second installation position, and wherein,

[0030] Fig. 2.2 shows the second railing element after removal of the first locking means in a second disassembly intermediate position, and wherein

[0031] Fig. 2.3 shows the second railing element in a second disassembly position.

[0032] Figs. 3.1 to 3.3 show a section of a scaffolding with a leading-mounted third railing element according to a third embodiment, wherein

[0033] Fig. 3.1 shows the third railing element in its third position of use, in which its third railing strut is in a horizontal third installation position, and wherein

[0034] Fig. 3.2 shows the third railing element after removal of the first third locking means in a third disassembly intermediate position, and wherein

[0035] Fig. 3.3 shows the third railing element in a third disassembly position.

[0036] Figs. 4.1 to 4.3 show a section of a scaffolding with a leading-mounted fourth railing element according to a fourth embodiment, wherein

[0037] Fig. 4.1 shows the fourth railing element in its fourth position of use, in which its fourth railing strut is in a horizontal fourth installation position, and wherein

[0038] Fig. 4.2 shows the fourth railing element after removal of the first fourth locking means in a fourth disassembly intermediate position, and wherein

[0039] Fig. 4.3 shows the fourth railing element in a fourth disassembly position.

[0040] Figures 1.1 to 1.3, 2.1 to 2.3, 3.1 to 3.3, and 4.1 to 4.3 show four different exemplary embodiments of railing elements 10.1, 10.2, 10.3, 10.4 according to the invention and scaffolding 11.1, 11.2, 11.3, 11.4 containing these railing elements 10.1, 10.2, 10.3, 10.4. For clarity, hidden edges are predominantly drawn with solid lines.

[0041] Each railing element 10.1 , 10.2, 10.3, 10.4 serves to secure working or standing areas not shown on a scaffold 11.1 ,

[0042] 11.2, 11.3, 11.4. Each railing element 10.1, 10.2, 10.3, 10.4 comprises an elongated railing strut 12.1, 12.2 extending straight along its longitudinal axis 13.1, 13.2, preferably in the form of a railing tube. Coupling elements 14.1, 14.2 are provided at the ends of each railing strut 12.1, 12.2.

[0043] 14.2, 14.3, 14.4 for detachable fastening of the respective railing element

[0044] 10.1, 10.2, 10.3, 10.4 on and between two horizontally spaced, vertical scaffolding uprights 15.1, 15.2. For each railing element 10.1,

[0045] 10.2, 10.3, 10.4, at a first end 16.1.1, 16.2.1 of the ends 16.1.1, 16.1.2; 16.2.1, 16.2.2 of the respective railing strut 12.1, 12.2, there is a first coupling element 14.1, 14.2, 14.3, 14.4 of the coupling elements 14.1, 14.2, 14.3, 14.4 and at a second end 16.2.1, 16.2.2 of the ends 16.1.1, 16.1.2; 16.2.1 , 16.2.2 of the respective railing strut 12.1 , 12.2 a second coupling element 14.1 , 14.2, 14.3, 14.4 of the coupling elements 14.1 , 14.2, 14.3, 14.4 is arranged. The respective first coupling element 14.1 , 14.2, 14.3, 14.4 of the respective two coupling elements 14.1 , 14.2, 14.3, 14.4 is designed in such a way that it can be connected to a first connecting element without a separate or separately handled aid.

[0046] 17.1, 17.2 of a first scaffolding stand 15.1, 15.2 of the scaffolding stands 15.1, 15.2 can be articulated and detachably fastened. The respective second coupling element 14.1, 14.2, 14.3, 14.4 of the respective two coupling elements 14.1, 14.2, 14.3, 14.4 is designed such that it can be articulated and detachably fastened to a second connecting element 17.1, 17.2 of a second scaffolding stand 15.1, 15.2 of the scaffolding stands 15.1, 15.2 without a separate or separately handled aid. Each railing element 10.1, 10.2, 10.3, 10.4 is pivotally mounted, starting from a preferably first, in particular oblique, assembly and disassembly position (not shown), in particular in a pivoting plane containing the preferably parallel longitudinal axes of the first and second scaffolding posts, or is pivotally mounted in a pivoting plane which is arranged parallel to a plane which contains the preferably parallel longitudinal axes of the first and second scaffolding posts, and can be pivoted in advance into a use position 18.1, 18.2, 18.3, 18.4 in order to form a leading railing in which the respective railing strut.

[0047] 12.1 , 12.2 is arranged in a horizontal, in particular substantially horizontal, installation position 19.1 , 19.2 and in which the respective first coupling element 14.1 , 14.2, 14.3, 14.4 is detachably and articulately fastened to the respective first connecting element 17.1 , 17.2 of the respective first scaffolding stand 15.1 , 15.2 and in which the respective second coupling element 14.1 , 14.2, 14.3, 14.4 is detachably and articulately fastened to the respective second connecting element

[0048] 17.1, 17.2 of the respective second scaffolding upright 15.1, 15.2 is detachably and articulately attached. Each railing strut 12.1, 12.2 is connected at its respective first end 16.1.1, 16.2.1 by means of a captively attached first connecting means 20.1 to the respective first coupling element 14.1, 14.2, 14.3, 14.4 and / or is connected at its respective second end 16.1.2, 16.2.2 by means of a captively attached second connecting means 20.1 to the second coupling element 14.1, 14.2, 14.3, 14.4. At least one locking means 20.2 is provided in each case, which is located in a locking position 21 in which the associated coupling element 14.1, 14.2, 14.3, 14.4 and the associated railing strut 12.1, 12.2 are locked relative to one another by means of the respective locking means 20.2, preventing pivoting about the respective connecting axis 22 of the respectively associated connecting means 20.1.2 can be transferred from the respective locking position 21 into an unlocking position or can be removed from the respective railing element 10.1, 10.2, 10.3, 10.4, so that the associated coupling element 14.1, 14.2, 14.3, 14.4 can be pivoted relative to the respective railing strut 12.1, 12.2 about the respective connection axis 22 of the associated connecting means 20.1, in order to enable dismantling of the respective railing element 10.1, 10.2, 10.3, 10.4 without loosening or dismantling or without a relevant change in position of at least one scaffolding stand 15.1, 15.2 of the respective scaffolding stands 15.1, 15.2. According to the invention, the first coupling element 14.1, 14.2, 14.3 assigned to the first end 16.1.1, 16.2.1 of the respective railing strut 12.1 and / or the second coupling element 14.1, 14.2, 14.3 assigned to the second end 16.1.2, 16.2.2 of the respective railing strut 12.1, 12.2 and / or the railing strut 12.2 at least one elongated guide 23.1, 23.2, 23.3 for the associated connecting means 20.1, with which the associated connecting means 20.1 is coupled. The elongated guide 23.1, 23.2, 23.3 is designed and arranged in such a way that in the unlocking position of the associated locking means or when the locking means 20.2 is removed from the railing element 10.1, 10.2, 10.3, 10.4, the associated coupling element 14.1, 14.2, 14.3, 14.4 and the railing strut 12.1, 12.2 are pivotable relative to each other about the connecting axis 22 of the associated connecting means 20.2, so that between the associated coupling element 14.1, 14.2, 14.3, 14.3 and the railing strut 12.1, 12.2 a kink 24.1, 24.2, 24.3, 24.4 can be formed, and, preferably simultaneously, can be displaced relative to one another along the elongated guide 23.1, 23.2, 23.3, namely into a disassembly position.

[0049] 41.1, 41.2, 41.3, 41.4 or into a preferably second assembly and disassembly position 25.1, 25.2, 25.3, 25.4, from which the railing element 10.1, 10.2, 10.3, 10.4 can be moved without loosening or disassembling or without a relevant change in the position of at least one scaffolding stand

[0050] 15.1 , 15.2 the scaffolding posts 15.1 , 15.2 from the connecting elements 17.1 ,

[0051] 17.2 of the scaffolding stands 15.1 , 15.2, in particular first of all from the associated connecting element 17.1 , 17.2 of the associated scaffolding stand 15.1 ,

[0052] 15.2 and then from the other connecting element 17.1 , 17.2 of the other scaffolding stand 15.1 , 15.2.

[0053] In the illustrated embodiments, the at least one elongated guide 23.1, 23.2, 23.3, 24.4 is a linear guide in the form of at least one elongated hole formed as an opening. Preferably, each railing strut 12.1, 12.2 is an elongated tube. The tube preferably has a substantially circular annular cross-section over its entire length.

[0054] Each connecting means 20.1 is preferably formed with a special screw not shown in the figures. Each locking means 20.2 is preferably formed with a special screw not shown in the figures. Each connecting means 20.1 is formed with a physical axis, in particular with a shaft, which extends along its longitudinal axis 26.1. Each locking means 20.2 is formed with a physical axis, in particular with a shaft, which extends along its longitudinal axis 26.2. Preferably, all connecting means 20.1 and all locking means 20.2 are designed identically. Even if the respective special screw is shown in the figures as a hexagon screw, which can be designed as a threaded screw and which can be secured against loss with a hexagon nut (not shown), at least each locking means 20.2 or each connecting means 20.1 and each locking means 20.2, designed in such a way that it or they can be released or removed exclusively with the aid of a special tool, preferably not generally available on the market, not shown in the figures.

[0055] Each coupling element 14.1 , 14.2 , 14.3 has a suspension hook 27.1 ,

[0056] 27.2 for detachable and articulated fastening to a connecting element

[0057] 17.1 , 17.2 of a scaffolding stand 15.1 , 15.2 of the respective scaffolding stand 15.1 ,

[0058] 15.2 and has a connecting part 28.1, 28.2, 28.2, 28.4 for connecting the respective scaffold strut 12.1, 12.2. Each connecting part 28.1, 28.2, 28.3, 28.4 is elongated and extends along its longitudinal axis 29.1,

[0059] 29.2, 29.3, 29.4 from the respective suspension hook 27.1, 27.2 to its respective connecting part end 30.1, 30.2, 30.3, 30.4, with which the respective railing strut 12.1, 12.2 is connected.

[0060] In the exemplary embodiments according to Figures 1.1 to 1.3, 3.1 to 3.3, and 4.1 to 4.3, the respective suspension hook 27.1 is designed identically to the suspension hook shown in particular in Figures 3.1, 3.2, and 4 of German patent application No. 10 2021 133 941.3 and described in the figure description therein. The content of this patent application is incorporated in its entirety here, particularly with regard to the suspension hooks disclosed therein.

[0061] In the exemplary embodiment according to Figures 2.1 to 2.3, the respective suspension hook 27.2 is designed identically to the suspension hook shown in particular in Figures 6 and 7 of German patent application No. 10 2021 101 768.8 and described in the figure description therein. The content of this patent application is incorporated in its entirety here, particularly with regard to the suspension hooks disclosed therein.

[0062] According to the embodiment shown in Figures 1.1 to 1.3 and according to the embodiment shown in Figures 2.1 to 2.3 and also according to the embodiment shown in Figures 3.1 to 3.3, it is provided that the at least one elongated guide in the form of the at least one elongated hole 23.1, 23.2 is provided in the associated coupling element 14.1, 14.2, 14.3 and extends along the longitudinal axis 29.1, 29.2, 29.3 of a connecting part 28.1, 28.2, 28.3 of the respective coupling element 14.1, 14.2, 14.3, which connecting part is articulatedly coupled to the respective railing strut 12.1 by means of the respective connecting means 20.1. In the embodiment shown in Figures 3.1 to 3.3, the elongated hole 23.2 of the connecting part 29.3 of the coupling element 14.3 is shorter than the respective elongated hole 23.1, 23.2 of the respective connecting part 29.1, 29.2 of the respective coupling element 14.1, 14.2 according to the embodiments shown in Figures 1.1 to 2.3. In the embodiment shown in Figures 3.1 to 3.3, the connecting part 29.3 is additionally provided with an opening in the form of a bore 43, which is arranged at the connecting part end 30.3 of the connecting part 29.3 pointing away from the suspension hook 27.1. This bore 43, also referred to as the second opening, of the connecting part 29.3 of the coupling element 14.3 is aligned in the locking position 21 of the locking means 20.2 locked with the associated coupling element 14.3 with the rear bore 31.2 of the at least two bores 31.1, 31.2 of the railing strut 12.1, so that the associated locking means 20.2 engages both in the said bore 43 of the connecting part of the associated coupling element 14.3 and in the rear bore 31.2 of the two bores 31.1, 31.2 of the railing strut 12.1. The at least one elongated hole 23.1, 23.2 according to these three embodiments extends along its elongated hole longitudinal axis 33.1, 33.2 parallel to the respective longitudinal axis 29.1, 29.2 of the respective connecting part 28.1, 28.2 of the respective coupling element 14.1, 14.2, 14.3.

[0063] In the embodiments shown in Figures 1.1 to 1.3 as well as 2.1 to 2.3 and 3.1 to 3.3, the respective railing strut 12.1 is provided at each end 16.1.1, 16.1.2 of its ends 16.1.1, 16.1.2 with two openings in the form of bores 31.1, 31.2, which, viewed in the direction of the respective longitudinal axis 38.1 of the respective railing strut 12.1, are arranged offset from one another at a first distance 32. The front bore 31.1 of the at least two bores 31.1, 31.2 of the respective railing strut 12.1 serves to pass through the shaft of the connecting means 20.1, which is preferably designed as a special screw and is coupled to the associated coupling element 14.1, 14.2, 14.3. The rear bore 31.2 of the at least two bores 31.1, 31.2 of the respective railing strut 12.1 serves to pass through the associated locking means 20.2, which is locked to the associated coupling element 14.1, 14.2, 14.3.This also applies to the shaft, preferably of the special screw.

[0064] According to the alternative embodiment shown in Figures 4.1 to 4.3, the at least one elongated guide is provided in the form of at least one elongated hole 23.3 in the railing strut 12.2. The at least one elongated hole 23.3 extends along the longitudinal axis 38.2 of the railing strut 12.2. The at least one elongated hole 23.3 extends along its elongated hole longitudinal axis 33.3 parallel to the longitudinal axis 38.2 of the railing strut 12.2. Furthermore, in this embodiment, the associated coupling element 14.4 is provided with two openings in the form of bores 34.1, 34.2, which are offset from one another at a second distance 35. The rear hole 34.2 of these two holes 34.1, 34.2 of this coupling element serves for the insertion of the connecting element coupled to the railing strut in the form of the shaft of the special screw. The front hole 34.1 of the two holes 34.1, 34.2 of this coupling element 14.4 serves to push through the associated locking means 20.2 in the form of the shaft, preferably the further special screw, which is locked with the associated coupling element 14.4.

[0065] In all embodiments shown in the figures, the respective first coupling element 14.1, 14.2, 14.3, 14.4 and the respective second coupling element 14.1, 14.2, 14.3, 14.4 of the respective two coupling elements 14.1, 14.2, 14.3, 14.4 of the respective railing element 10.1, 10.2, 10.3, 10.4 are of identical design. Each railing strut 12.1, 12.2 is designed symmetrically to a central plane of symmetry (not shown), which extends in the respective longitudinal center of the respective railing strut 12.1, 12.2 perpendicular to the respective longitudinal axis 38.1, 38.2 of the respective railing strut 12.1, 12.2. It is understood that the respective railing element can also be provided with differently designed coupling elements. Furthermore, it is also understood that each railing strut can be coupled to a coupling means at only one of its two ends, as shown, for example, in Figures 1.1 to 4.3 is shown on the left, while the railing strut can be provided at the other end of its two ends with an identical or different coupling element, which can be connected to the railing strut by turning or welding.

[0066] Figures 1.1, 2.1, 3.1 and 4.1 show four embodiments of scaffolding 11.1, 11.2, 11.3, 11.4 according to the invention. Each scaffold

[0067] 11.1, 11.2, 11.3, 11.4 comprises several scaffolding posts 15.1, 15.2, several connecting elements 20.1 and at least one railing element 10.1, 10.2, 10.3, 10.4 according to the invention. Each railing element 10.1, 10.2, 10.3,

[0068] 10.4 thus comprises an elongated railing strut 12.1 , 12.2, at each of whose ends 16.1.1 , 16.1.2; 16.2.1 , 16.2.2 a coupling element 14.1 ,

[0069] 14.2, 14.3, 14.4. Each railing element 10.1, 10.2, 10.3, 10.4 is connected to a respective connecting element 20.1 of the respective vertical scaffolding stand by means of the respective coupling element 14.1, 14.2, 14.3, 14.4 in the form of a respective hook 27.2, 27.2.

[0070] 15.1 , 15.2 are detachable and hinged. For each scaffold 11.1 , 11 .2 , 11 .3,

[0071] 11 .4, a first scaffold stand 15.1, 15.2 of the scaffold stands 15.1, 15.2 has a first connecting element 20.1 of the connecting elements 20.1, to which the first coupling element 14.1, 14.2, 14.3, 14.4 of the coupling elements

[0072] 14.1, 14.2, 14.3, 14.4 of the respective railing element 10.1, 10.2, 10.3, 10.4, each without a separate aid and also without a separately handled aid, is attached in an articulated and detachable manner. For each scaffold 11.1,

[0073] 11.2, 11.3, 11.4, a second scaffolding stand 15.1, 15.2 of the scaffolding stands 15.1, 15.2 has a second connecting element 20.1, to which the second coupling element 14.1, 14.2, 14.3, 14.4 of the coupling elements 14.1, 14.2, 14.3, 14.4 of the respective railing element 10.1, 10.2, 10.3, 10.4 is fastened in an articulated and detachable manner, in each case without a separate aid and also without an aid that has to be handled separately. For each scaffold 11.1, 11.2, 11.3, 11.4, the respective railing element 10.1, 10.2, 10.3, 10.4 is mounted in advance in one or the use position 18.1, 18.2, 18.3, 18.4, in which the respective railing strut 12.1, 12.2 is arranged in one or the horizontal, preferably substantially horizontal, installation position 19.1, 19.2. Preferably, therefore, the respective railing strut 12.1, 12.2 is in its installation position

[0074] 19.1, 19.2 are arranged such that their respective longitudinal axes 38.1, 38.2 are perpendicular to the two associated vertical scaffolding uprights 15.1, 15.2 or to their longitudinal axes 38.1, 38.2. For each scaffold 11.1, 11.2, 11.3, 11.4, the respective coupling elements 14.1,

[0075] 14.2, 14.3, 14.4 of the respective railing element 10.1 , 10.2, 10.3, 10.4 and the respective connecting elements 17.1 , 17.2 of the respective scaffolding stand 15.1 ,

[0076] 15.2 are each designed to be coordinated with one another in such a way that the respective railing element 10.1, 10.2, 10.3, 10.4 cannot be dismantled without loosening or dismantling or without a relevant change in position of at least one scaffolding post 15.1, 15.2 of the respective scaffolding posts 15.1, 15.2 or without transferring the respectively assigned locking means 20.2 from its respective locking position 21 into its respective unlocking position or without removing the respective locking means 20.2 from the respective railing element 10.1, 10.2, 10.3, 10.4.

[0077] In the exemplary embodiments of scaffolding 11.1, 11.3, 11.4 shown in Figures 1.1, 3.1, and 4.1, identically designed scaffolding stands 15.1 are used according to a first exemplary embodiment. These scaffolding stands 15.1 each have at least one first connecting element 20.1, which can also be referred to as a first railing fastening element, for detachably and articulately fastening the respective railing element 10.1, 10.3, 10.4. In these three exemplary embodiments of scaffolding 11.1, 11.3, 11.4 and the scaffolding stands 15.1 installed therein, all connecting elements 20.1 are of the same design and arrangement. These connecting elements 20.1 may each be a holder in the form of a U-bracket, as described, for example, in particular in Figures 2.1 and 2.2 of the applicant's German patent application 10 2021 133 941.3 and in the description of the figures therein.It can also be a holder, in particular in the form of a U-shaped bracket or a U-bracket, according to EP 1 983 129 A2 and the parallel WO 2008 / 128500 A2 of the applicant, which are shown there in particular in Figures 4, 10, 15 and 19 and described in the figure descriptions therein. These holders can, as partially shown therein, each be provided with a locking lever pivotable about a pivot axis, as shown in particular in the respective Figures 5, 7a-7d and 8a to 8e or in Figures 11, 12a to 12d and 13a to 13e and described in the figure descriptions therein. It can also be a holder in the form of a U-shaped bracket or a U-bracket according to DE 10 2018 114 244 A1 and the parallel WO 2019 / 238154 A1 of the applicant, which are shown there in particular in Figures 4 and 5 and described in the figure description there.This holder can also be provided with a locking lever pivotable about a pivot axis, as shown in particular in Figure 4 and described in the figure descriptions therein. The content of these intellectual property rights is also incorporated in full here, particularly with regard to the holders and locking levers disclosed therein.

[0078] In the embodiment of a scaffold 11.2 shown in Figure 2.1, other scaffolding stands 15.2 are used. These other scaffolding stands

[0079] 15.2 are each designed identically. They each have at least one different connecting element in the form of a perforated disc 17.2, to which a respective other coupling means 14.2 of a different railing element is attached.

[0080] 10.2 is detachably and articulately attachable or attached. Each perforated disc 17.2 can be provided with a plurality of through-holes in a manner known per se, of which a through-hole 36 is illustrated in Figures 2.1 to 2.3. Preferably, for example, eight through-holes can be provided in a manner likewise known, of which four large through-holes and four small through-holes can be arranged alternately in the circumferential direction and offset from one another at a circumferential angle of approximately 45 degrees.

[0081] In all of the exemplary embodiments shown, each scaffolding stand 15.1, 15.2 has a pipe connector 37 at its upper end for attaching another, preferably identical, scaffolding stand. The pipe connectors 37 are preferably each of the same design. Each scaffolding stand 15.1, 15.2 has a plug-in pipe at its lower end (not shown), by means of which it is attached to a pipe connector (likewise not shown) of a scaffolding component used to assemble the respective scaffold 11.1, 11.2, 11.3, 11.4, for example an identical scaffolding stand or a scaffolding stand of a different length or a starting piece. Each of the scaffolding uprights 15.1, 15.2 is mounted or plugged onto the scaffolding component (not shown) arranged directly below it in the vertical assembly position 39.1, 39.2 shown, releasably but secured against lateral pivoting. The longitudinal axes 38.1, 38.2 of the two horizontally adjacent scaffolding uprights 15.1, 15.2 of each scaffold 11.1, 11.2, 11.3, 11.4 are arranged essentially parallel to each other. To secure the two horizontally adjacent scaffolding uprights 15.1, 15.2 against lateral pivoting relative to each other, they can be connected with horizontal and diagonal scaffold struts or scaffolding ledges, such as longitudinal ledges and transverse ledges, and diagonal braces, which are not shown in the figures.

[0082] In all exemplary embodiments according to Figures 1.1 to 1.3 and according to Figures 2.1 to 2.3 and according to Figures 3.1 to 3.3 and according to Figures 4.1 to 4.3, the respective first locking means 20.2 and the respective second locking means 20.2 are designed identically, and the respective first connecting means 20.1 and the respective second connecting means 20.1 are also designed identically. In these exemplary embodiments, all locking means 20.2 and all connecting means 20.1 are designed identically. Therefore, for the sake of simplicity, regardless of the respective exemplary embodiment of the different railing elements 10.1, 10.2, 10.3, 10.4, the designation “locking means” is always used for all locking means 20.2, and the same main reference numeral 20 is always used for them. Furthermore, for the same reasons, all connecting means 20.1 always uses the term connecting means and the same main reference numerals 20 are always used.

[0083] Figures 1.1 to 1.3 show a section of a scaffold 11.1 with a first railing element 10.1 mounted in advance according to a first exemplary embodiment, with a first railing strut 12.1 according to a first exemplary embodiment. In this first railing strut 12.1, each end 16.1.1, 16.2.1 of its two ends 16.1.1, 16.2.1 is provided with two through holes or bores 31.1, 31.2 arranged offset from one another at an axial distance 32. The first railing element 10.1 has two coupling elements 14.1, 14.1, each according to a first exemplary embodiment, wherein each coupling element 14.1 is provided with at least one elongated hole 23.1. The first coupling element 14.1 shown on the left is hingedly and releasably attached to the associated first connecting element 17.1 of the associated first scaffolding stand 15.1 according to a first exemplary embodiment. The second coupling element 14 shown on the right.1 is articulated and detachably attached to the associated second first connecting element 17.1 of the associated second first scaffolding stand 15.1, also according to the first embodiment.

[0084] Fig. 1.1 shows the first railing element 10.1 in its first use position 18.1, in which its first railing strut 12.1 is in a horizontal or horizontal first installation position 19.1 and in which the first coupling element 14.1 shown there on the left and the first railing strut 12.1 are locked by means of a first locking means 20.2 located in its first locking position 21 against pivoting about the first pivot axis 22 of the first connecting means 20.1, also referred to as the connecting axis, by means of which the first coupling element 14.1 and the first railing strut 12.1 are pivotably coupled relative to one another.

[0085] Fig. 1.2 shows the first railing element 10.1 after removal of the first locking means 20.2 in a first disassembly intermediate position 40.1, in which the first coupling element 14.1 shown there on the left is relative to the associated first connecting element

[0086] 17.1 of the associated first scaffolding stand 15.1 downwards and at the same time the associated first end 16.1.1 of the first railing strut 12.1 relative to the first coupling element 14.1 about the first pivot axis 22 of the first connecting means 20.1 downwards and along the slot 23.1 of the first coupling element 14.1 backwards or downwards into a first intermediate position

[0087] 42.1 was postponed.

[0088] Fig. 1.3 shows the first railing element in a first disassembly position 41.1, in which the first coupling element 14.1 can be disassembled from the first connecting element 17.1 of the first scaffolding stand 15.1.

[0089] Figures 2.1 to 2.3 show a section of a scaffold 11.2 with a second railing element 10.2 mounted in advance according to a second embodiment, with a second railing strut 12.1. The second railing strut 12.1 is designed identically to the first railing strut 12.1 according to the first embodiment. The second railing element 10.2 comprises two coupling elements 14.2, 14.2, each according to a second exemplary embodiment, wherein each coupling element 14.2 is also provided with at least one elongated hole 23.1, of which the first second coupling element 14.2 shown there on the left is articulated and detachably fastened to the associated first second connecting element 17.1 of the associated first second scaffolding stand 15.2 according to a second exemplary embodiment, and of which the second second coupling element 14.2 shown there on the right is fastened to the associated second second connecting element 17.2 of the associated second second scaffolding stand 15.2 is also hinged and detachably attached according to the second embodiment.

[0090] In Fig. 2.1, the second railing element 10.2 is shown in its second use position 18.2, in which its second railing strut 12.1 is in a horizontal or horizontal second installation position 12.2 and in which the first second coupling element 14.2 and the second railing strut 12.1 shown there on the left are locked against pivoting about the first pivot axis 22 of the first second connecting means 20.1 by means of the first second locking means 20.2, which is in its locking position 21 and is designed in the same way as the first first locking means 20.2 according to the first exemplary embodiment, by means of which the first second coupling element 14.2 and the second railing strut 12.1 are pivotally coupled relative to one another.

[0091] In Fig. 2.2, the second railing element 10.2 is shown in a second disassembly intermediate position 40.2 after removal of the first second locking means 20.2, in which the first second coupling element 14.2 shown there on the left is pivoted downwards relative to the associated first second connecting element 17.2 of the associated first second scaffolding stand 15.2 and at the same time the associated first second end 16.1.1 of the second railing strut 12.1 is pivoted downwards relative to the first second coupling element 14.2 about the first pivot axis 22 of the first second connecting means 20.1 and is displaced backwards or downwards along the first second elongated hole 23.1 of the first second coupling element 14.2 into a first second intermediate position 42.2, in which the first second coupling element 14.2 is detached from the first second connecting element 17.1 of the first second scaffolding stand 15.2 is removable. In Fig. 2.3, the second railing element is 10.2 in a second disassembly position 41.2, in which the first second coupling element 14.2 and accordingly the second railing element 10.2 can be removed from the first second connecting element 17.2 of the first second scaffolding stand 15.2.

[0092] Figures 3.1 to 3.3 show a section of a scaffold 11.3 with a third railing element 10.3 mounted in advance according to a third exemplary embodiment, with a third railing strut 12.1 that is designed identically to the first railing strut 12.1 according to the first exemplary embodiment. The third railing element 10.3 comprises two coupling elements 14.3, 14.3, each coupling element 14.3 being provided with at least one elongated hole 23.2 and additionally with a through hole or bore 43 at its rear end. The first third coupling element 14.3 shown there on the left is articulated and detachably attached to the associated first connecting element 17.1 of the associated first scaffolding stand 15.1 according to the first exemplary embodiment. The second third coupling element 14.3 shown there on the right is on the associated second first connecting element 17.1 of the associated second first scaffolding stand 15.1 is also attached in an articulated and detachable manner according to the first embodiment.

[0093] Fig. 3.1 shows the third railing element 10.3 in its third use position 18.3, in which its third railing strut 12.1 is in a horizontal third installation position 19.3 and in which the first third coupling element 14.3 and the third railing strut 12.1 shown there on the left are locked by means of a first locking means 20.2 located in its first locking position 21 against pivoting about the first pivot axis 22 of the first connecting means 20.1, by means of which the first third coupling element 14.3 and the third railing strut 12.1 are pivotally coupled relative to one another. Fig. 3.2 shows the third railing element 10.3 after removal of the first locking means 20.2 in a third disassembly intermediate position 40.3, in which the first third coupling element 14.3 shown there on the left is relative to the associated first connecting element 17.1 of the associated first scaffolding stand 15.1 was wasted downwards and at the same time the associated first third end 16.1.1 of the third railing strut 12.1 was wasted downwards relative to the first third coupling element 14.3 about the first first pivot axis 22 of the first first connecting means 20.1 and was moved backwards or downwards along the third elongated hole 23.2 of the first third coupling element 14.3 into a third intermediate position 42.3.

[0094] Fig. 3.3 shows the third railing element 10.3 in a third disassembly position 41.3, in which the first coupling element 14.3 can be disassembled from the first connecting element 17.1 of the first scaffolding stand 15.1.

[0095] Figures 4.1 to 4.3 show a section of a scaffold 11.4 with a leading-mounted fourth railing element 10.4 according to a fourth embodiment, with a fourth railing strut 15.1 formed with at least one first fourth elongated hole 23.3. The fourth railing element

[0096] 10.4 comprises two coupling elements 14.1, 14.4, each according to a fourth embodiment, in which each coupling element 14.4 is provided with two through-holes 34.1, 34.2 arranged at a distance 35 from each other. The first fourth coupling element 14.4 shown there on the left is articulated and releasably attached to the associated first connecting element 17.1 of the associated first scaffolding stand 15.1 according to the first embodiment. The second fourth coupling element shown there on the right

[0097] 14.4 is articulated and detachably attached to the associated second first connecting element 17.1 of the associated second first scaffolding stand 15.1, also according to the first exemplary embodiment. In Fig. 4.1, the fourth railing element 10.4 is shown in its fourth use position 18.4, in which its fourth railing strut 12.4 is in a horizontal fourth installation position 19.4 and in which the first fourth coupling element 14.4 and the fourth railing strut 12.4 shown there on the left are locked against pivoting about the first pivot axis 22 of the first fourth connecting element 20.1 by means of a first fourth locking means 20.2 located in its first locking position 21, by means of which the first fourth coupling element 14.4 and the fourth railing strut 12.4 are pivotally coupled relative to one another.

[0098] In Fig. 4.2, the fourth railing element 10.4 is shown in a fourth disassembly intermediate position 40.4 after the removal of the first fourth locking means 20.2, in which the first fourth coupling element 14.4 shown there on the left has been pivoted downwards relative to the associated first connecting element 17.1 of the associated first scaffolding stand 15.1 according to the first exemplary embodiment and at the same time has been moved forwards or downwards along the first fourth elongated hole 23.3 of the fourth railing strut 12.2 into a fourth intermediate position 42.4 and at the same time the associated first fourth end 16.2.1 of the fourth railing strut 12.2 has been pivoted downwards relative to the first fourth coupling element 14.4 about the first pivot axis 22 of the first fourth connecting means 20.1.

[0099] In Fig. 4.3, the fourth railing element 10.4 is shown in a fourth disassembly position 41.4, in which the first coupling element 14.4 can be disassembled from the first connecting element 17.1 of the first scaffolding stand 15.1. LIST OF REFERENCE SYMBOLS

[0100] 10.1 Railing element (Fig.1)

[0101] 10.2 Railing element (Fig. 2)

[0102] 10.3 Railing element (Fig. 3)

[0103] 10.4 Railing element (Fig. 4)

[0104] 11.1 Scaffolding (Fig. 1 )

[0105] 11.2 Scaffolding (Fig. 2)

[0106] 11.3 Scaffolding (Fig. 3)

[0107] 11.4 Scaffolding (Fig. 4)

[0108] 12.1 Railing brace (Figs. 1, 2, 3)

[0109] 12.2 Railing brace (Fig. 4)

[0110] 13.1 Longitudinal axis of 12.1 (Figs. 1 , 2, 3)

[0111] 13.2 Longitudinal axis of 12.2 (Fig. 4)

[0112] 14.1 Coupling element (Fig. 1 )

[0113] 14.2 Coupling element (Fig. 2)

[0114] 14.3 Coupling element (Fig. 3)

[0115] 14.4 Coupling element (Fig. 4)

[0116] 15.1 Scaffolding stand / vertical post (Fig. 1, 3, 4)

[0117] 15.2 Scaffolding stand / vertical post (Fig. 2)

[0118] 16.1.1 first end (left) of 12.1

[0119] 16.1.2 second end (right) of 12.1

[0120] 16.2.1 first end (left) of 12.2

[0121] 16.2.2 second end (right) of 12.2

[0122] 17.1 Connecting element (U-bracket) (Figs. 1, 3, 4

[0123] 17.2 Connecting element / perforated disc (Fig. 2)

[0124] 18.1 Position of use of 10.1

[0125] 18.2 Use position of 10.2

[0126] 18.3 Use position of 10.3

[0127] 18.4 Use position of 10.4

[0128] 19.1 (horizontal / horizontal) installation position of 12.1 19.2 (horizontal / horizontal) installation position of 12.2

[0129] 20.1 Fasteners (special screw)

[0130] 20.2 Locking device (special screw)

[0131] 21 Locking position of 20.2

[0132] 22 Connecting axis / swivel axis of 20.1

[0133] 23.1 (long) guide / linear guide / long hole (Figs. 1 , 2)

[0134] 23.2 (long) guide / linear guide / long hole (Fig. 3)

[0135] 23.3 (long) guide / linear guide / long hole (Fig. 4)

[0136] 24.1 Kink (Fig. 1 )

[0137] 24.2 Kink (Fig. 2)

[0138] 24.3 Kink (Fig. 3)

[0139] 24.4 Kink (Fig. 4)

[0140] 25.1 (second) assembly and disassembly position (Fig. 1.3)

[0141] 25.2 (second) assembly and disassembly position (Fig. 2.3)

[0142] 25.3 (second) assembly and disassembly position (Fig. 3.3)

[0143] 25.4 (second) assembly and disassembly position (Fig. 4.3)

[0144] 26.1 Longitudinal axis of 20.1

[0145] 26.2 Longitudinal axis of 20.2

[0146] 27.1 Hooks of 14.1 , 14.3 , 14.4 (Figs. 1 , 3, 4)

[0147] 27.2 Hooks from 14.2 (Fig. 2)

[0148] 28.1 Connection part of 14.1 (Fig. 1 )

[0149] 28.2 Connection part of 14.2 (Fig. 2)

[0150] 28.3 Connecting part of 14.3 (Fig. 3)

[0151] 28.4 Connecting part of 14.4 (Fig. 4)

[0152] 29.1 Longitudinal axis of 28.1 (Fig. 1 )

[0153] 29.2 Longitudinal axis of 28.2 (Fig. 2)

[0154] 29.3 Longitudinal axis of 28.3 (Fig. 3)

[0155] 29.4 Longitudinal axis of 28.4 (Fig. 4)

[0156] 30.1 Connector end of 28.1 (Fig. 1 )

[0157] 30.2 Connector end of 28.2 (Fig. 2)

[0158] 30.3 Connector end of 28.3 (Fig. 3)

[0159] 30.4 Connector end of 28.4 (Fig. 4) (front) opening / bore in 12.1 (Figs. 1, 2, 3) (rear) opening / bore in 12.1 (Figs. 1, 2, 3) (first) distance between 31.1 and 31.2 Longitudinal axis of slotted hole of 23.1 (Figs. 1, 2) Longitudinal axis of slotted hole of 23.2 (Fig. 3) Longitudinal axis of slotted hole of 23.3 (Fig. 4) (front) opening / bore in 14.4 (Fig. 4) (rear) opening / bore in 14.4 (Fig. 4) (second) distance between 34.1 and 34.2 Through hole of 17.2 (Perforated disc) (Fig. 2) Pipe connector Longitudinal axis of 15.1 Longitudinal axis of 15.2 Assembly position of 15.1 Assembly position of 15.2 (first) Disassembly intermediate position (second) Disassembly intermediate position (third) Disassembly intermediate position (fourth) Disassembly intermediate position (first) Disassembly position (second) Disassembly position (third) Disassembly position (fourth) Disassembly position (first) Intermediate position (second) Intermediate position (third) Intermediate position (fourth) Intermediate position Opening / bore in 28.3

Claims

PATENT CLAIMS Guardrail element (10.1 , 10.2, 10.3, 10.4) for securing working or standing areas, in particular on a construction scaffold (11.1 , 11.2, 11.3, 11.4), with a guardrail strut (12.1, 12.2) and with coupling elements (14.1, 14.2, 14.3, 14.4) arranged at the ends (16.1.1, 16.1.2; 16.2.1, 16.2.2) of the guardrail strut (12.1, 12.2) for detachably fastening the guardrail element (10.1, 10.2, 10.3, 10.4) to and between two spaced-apart scaffold uprights (15.1, 15.2), wherein the elongated guardrail strut (12.1, 12.2) extends along its longitudinal axis (13.1, 13.2), and wherein at a first end (16.1.1, 16.2.1 ) of the ends (16.1.1 , ,16.1.2; 16.2.1 , 16.2.2) of the railing strut (12.1 , 12.2) a first coupling element (14.1 , 14.2, 14.3, 14.4) of the coupling elements (14.1 , 14.2, 14.3, 14.4) and at a second end (16.2.1 , 16.2.2) pointing away from the first end (16.1.1 , 16.2.1 ) of the ends (16.1.1 , 16.1.2; 16.2.1 , 16.2.2) of the railing strut (12.1 , 12.2) a second coupling element (14.1 , 14.1 , 14.1 , 14.2 ) of the railing strut (12.1 , 12.2) 14.2, 14.3, 14.4) of the coupling elements (14.1 , 14.2, 14.3, 14.4) is arranged, and wherein the first coupling element (14.1 , 14.2, 14.3, 14.4) is designed such that it can be pivotally attached to a first connecting element (17.1 , 17.2) of a first scaffold stand (15.1 , 15.2) of the scaffold stands (15.1 , 15.2), and wherein the second coupling element (14.1 , 14.2,. 14.3, 14.4) is designed such that it can be pivotally attached to a second connecting element (17.1, 17.2) of a second scaffold upright (15.1, 15.2) of the scaffold uprights (15.1, 15.2), and wherein the guardrail element (10.1, 10.2, 10.3, 10.4) can be pivoted from an assembly and disassembly position into a service position (18.1, 18.2, 18.3, 18.4) to form a leading guardrail in which the guardrail strut (12.1, 12.2) is arranged in a horizontal installation position (19.1, 19.2) and in which the first coupling element (14.1, 14.2, 14.3, 14.4) at the first connection- element (17.1 , 17.2) of the first scaffold stand (15.1 , 15.2) is detachably and pivotally attached and in which the second coupling element (14.1 , 14.2, 14.3, 14.4) is attached to the second connecting element (17.1 , 17.2) of the second scaffold upright (15.1 , 15.2) is detachably and pivotally attached, and wherein the guardrail strut (12.1 , 12.2) is connected at its first end (16.1.1 , 16.2.1 ) to the first coupling element (14.1 , 14.2, ) by means of a captive first connecting element (20.1 ) 14.3, 14.4) is connected and / or at its second end (16.1 .2, 16.2.2) is connected to the second coupling element (14.1, 14.2, 14.3, 14.4) by means of a captive second connecting element (20.1), and wherein a locking means (20.2) is provided which is in a locking position (21) in which the associated coupling element (14.1, 14.2, 14.3, 14.4) and the guardrail strut (12.1, 12.2) are locked against pivoting relative to each other by means of the locking means (20.2), and wherein the locking means (20.2) can be moved from the locking position (21) to an unlocking position or removed from the guardrail element (12.1, 12.2) so that the associated coupling element (14.1, 12.2) is 14.2, 14.3, 14.4) relative to the railing strut (12.1 , 12.2) is pivotable to allow disassembly of the railing element (10.1 , 10.2, 10.3, 10.4) without allowing at least one scaffold stand (15.1 , 15.2) to be loosened or repositioned, characterized in that the first end (16.1.1 , 16.2.1 ) of the guardrail strut (12.1 , 12.2) the first coupling element (14.1, 14.2, 14.3, 14.4) associated with the second end (16.1.2, 16.2.2) of the railing strut (12.1, 12.2) and / or the second coupling element (14.1, 14.2, 14.3, 14.4) associated with the second end (16.1.2, 16.2.2) of the railing strut (12.1, 12.2) and / or the railing strut (12.1, 12.2) has or has at least one elongated guide (23.1, 23.2, 23.3) for the associated connecting element (20.1) with which the associated connecting element (20.1) is coupled and which is designed and arranged in such a way, that in the unlocked position of the associated locking device or when the locking device is removed from the railing element (10.1, 10.2, 10.3, 10.4), the associated coupling element (14.1, 14.2, 14.3, 14.4) and the railing strut (12.1, 12.2) are both pivotable relative to each other, so that a kink (24.1, 24.2, 24.3, 24.4) can be formed between the associated coupling element (14.1, 14.2, 14.3, 14.4) and the railing strut (12.1, 12.2), and are also displaceable relative to each other along the elongated guide (23.1, 23.2, 23.3) into a disassembly position (41.1, 41.2, 41.3, 41.4), from which the railing element (10.1, 10.2, 10.3, 10.4) can be dismantled without loosening or changing the position of at least one of the scaffold uprights (15.1, 15.2).

2. Railing element according to claim 1, characterized in that the at least one elongated guide (23.1 , 23.2 , 23.3) is a linear guide.

3. Railing element according to claim 1 or 2, characterized in that the at least one elongated guide (23.1 , 23.2 , 23.3) is an elongated opening or an elongated perforation or a slot.

4. Railing element according to one of the preceding claims, characterized in that the associated connecting means (20.1 ) is designed with a shaft, with a pin, with a bolt or with a screw.

5. Railing element according to one of the preceding claims, characterized in that the associated locking means (20.2) is equipped with a shaft, a pin, a bolt or a screw- a railing element according to one of the preceding claims, characterized in that the associated connecting element 20.1 and the associated locking element (20.2) are identical in design. A railing element according to one of the preceding claims, characterized in that the associated locking element (20.2) is designed such that it can only be released and / or moved into the unlocked position using a special tool, or can be removed from the railing element (10.1, 10.2, 10.3, 10.4). A railing element according to one of claims 1 to 7, characterized in that at least one elongated guide is provided on or in the associated coupling element (14.1, 14.2, 14.3), and that the railing strut (12.1) has at least two first openings (31.1, 31.2).2) is provided which are arranged at a first distance (32) from each other, wherein at least one first opening. (31.1) of the at least two first openings (31.1, 31.2) of the railing strut (12.1) serves for at least partial reception of the connecting element (20.1) coupled to the associated coupling element (14.1, 14.2, 14.3), and wherein at least one second first opening (31.2) of the at least two first openings (31.1, 31.2) serves for at least partial reception of the associated locking element (20.2) locked to the associated coupling element (14.1, 14.2, 14.3). Railing element according to claim 8, characterized in that the associated coupling element (14.3) has at least one second opening (34.2) exhibits the locking means locked in the locking position (21) with the associated coupling element (14.3). (20.2) overlaps or aligns with the at least one second first opening (31.2) of the at least two first openings 31.1 , 31.2 of the railing strut (12.1 ), so that the associated locking means (20.2) engages both in the at least one second opening (34.2) of the associated coupling element (14.3) and in the at least one second first opening (31.2) of the railing strut (12.1 ). A railing element according to one of claims 1 to 7, characterized in that the at least one elongated guide (23.3) is provided on or in the railing strut (12.2), and that the associated coupling element (14.4) is provided with at least two third openings (34.1, 34.2) which are arranged offset from each other at a third distance (35), wherein at least one first third opening (34.2) of the at least two third openings (34.1, 34.2) of the coupling element (14.4) is for at least partially receiving the railing strut (12.2).2) coupled connecting means (20.1), and wherein at least one second third opening (34.1) of the at least two third openings (34.1, 34.2) of the coupling element (14.4) serves to at least partially receive the associated locking means (20.2) locked to the associated coupling element (14.4). Railing element according to claim 10, characterized in that the railing strut has at least one fourth opening which, in the locked position of the locking means locked to the associated coupling element, overlaps or aligns with the at least one second third opening of the at least two third openings of the associated coupling element, such that the associated locking means engages both in the at least one fourth opening of the railing strut and in the at least one second third opening of the associated coupling element. Railing element according to one of the preceding claims, characterized in that the first coupling element (14.1 , 14.2, 14.3, 14.4) and the second coupling element (14.1, 14.2, 14.3, 14.4) are identically designed. Scaffolding (11.1, 11.2, 11.3, 11.4) with several scaffold uprights (15.1, 15.2), several connecting elements (17.1 , 17.2) and a railing element (10.1 , 10.2, 10.3, 10.4) according to one of the preceding claims, characterized in that a first scaffold stand (15.1 , 15.2) of the scaffold stand (15.1 , 15.2) has a first connecting element (17.1 , 17.2) of the connecting elements (17.1 , 17.2) to which the first coupling element (14.1 , 14.2, 14.3, 14.4) of the railing element (10.1 , 10.2, 10.3, 10.4) is articulated and detachably attached, and that a second scaffold stand (15.1 , 15.2) the scaffold stand (15.1 , 15.2) has a second connecting element (17.1 , 17.2) to which the second coupling element (14.1 , 14.2, 14.3, 14.4) of the railing element (10.1 , 10.2, 10.3, 10.4) is hinged and detachably fastened, and wherein the railing element (10.1 , 10.2, 10.3, 10.4) is mounted in a service position (18.1 , 18.2, 18.3, 18.4) in which the guardrail strut (12.1 , 12.2) is arranged in a horizontal installation position (19.1 , 19.2), and wherein the coupling elements (14.1 , 14.2, 14.3, 14.4) of the guardrail element (10.1 , 10.2, 10.3, 10.4) and the connecting elements (17.1 , 17.2) of the scaffold uprights (15.1 , 15.2) are designed to be coordinated in such a way that the railing element (10.1 , 10.2, 10.3, 10.4) cannot be dismantled without loosening or changing the position of at least one of the scaffold uprights (15.1 , 15.2) or without moving the locking device (20.2) from its locking position (21 ) to its unlocking position or without removing the locking device (20.2) from the railing element (10.1 , 10.2, 10.3, 10.4). Method for dismantling a railing element (10.1 , 10.2, 10.3, 10.4) of a scaffold (11.1 , 11.2, 11.3, 11.4) according to claim 13, wherein the guardrail element (10.1 , 10.2, 10.3, 10.4) is connected to the first coupling element (14.1 , 14.2, 14.3, 14.4) of the coupling elements (14.1 , 14.2, 14.3, 14.4) in the horizontal installation position (19.1 , 19.2) arranged guardrail strut (12.1, 12.2) is detachably and pivotally attached to the first connecting element (17.1, 17.2) of the first scaffold upright (15.1, 15.2) and is detachably and pivotally attached to the second coupling element (14.1, 14.2, 14.3, 14.4) of the coupling elements (14.1, 14.2, 14.3, 14.4) of the guardrail strut (12.1, 12.2) to the second connecting element (17.1, 17.2) of the second scaffold upright (15.1, 15.2), wherein the locking means (20.2) associated with it is in its locking position 21, in which a pivoting of the associated The coupling element (14.1, 14.2, 14.3, 14.4) of the coupling elements (14.1, 14.2, 14.3, 14.4) is prevented from moving relative to the guardrail strut (12.1, 12.2), so that the guardrail element (10.1, 10.2, 10.3, 10.4) cannot be moved without loosening or changing the position of at least one scaffold stand (15.1, 15.2) of the scaffold stands (15.1) 15.2) or cannot be disassembled without moving the locking means (20.2) from its locking position (21) to its unlocking position or without removing the locking means (20.2) from the railing element (10.1, 10.2, 10.3, 10.4), characterized in that the associated locking means (20.2) is moved from the locking position (21) to the unlocking position or is removed from the railing element (10.1, 10.2, 10.3, 10.4), whereupon the coupling element (14.1, 14.2, 14.3, 14.4) associated with the locking means (20.2) and the railing strut (12.1, 12.2) are pivoted relative to each other and along the elongated guide (23.1, 23.2, 23.3) are shifted relative to each other, so that between the to- where the ordered coupling element (14.1, 14.2, 14.3, 14.3, 14.4) and the guardrail strut (12.1, 12.2) form a kink (24.1, 24.2, 24.3, 24.4), whereupon the associated coupling element (14.1, 14.2, 14.3, 14.4) is removed from the connecting element (17.1, 17.2) of the associated scaffold stand (15.1, 15.2) to which it is assigned, whereupon the other coupling element (14.1, 14.2, 14.3, 14.4) is also removed from the connecting element of the associated scaffold stand (15.1, 15.2) to which it is assigned.

Images