EP4353924A1 - Dispositif de fixation pour fixer un élément d'échafaudage - Google Patents

Dispositif de fixation pour fixer un élément d'échafaudage Download PDF

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Publication number
EP4353924A1
EP4353924A1 EP23189580.6A EP23189580A EP4353924A1 EP 4353924 A1 EP4353924 A1 EP 4353924A1 EP 23189580 A EP23189580 A EP 23189580A EP 4353924 A1 EP4353924 A1 EP 4353924A1
Authority
EP
European Patent Office
Prior art keywords
receiving
scaffolding
clamping
fastening device
passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23189580.6A
Other languages
German (de)
English (en)
Inventor
Noah Tobisch
Marc Schmied
Tobias STECK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peri SE
Original Assignee
Peri SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peri SE filed Critical Peri SE
Publication of EP4353924A1 publication Critical patent/EP4353924A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22—Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/12—Clamps or clips for crossing members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/34—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using positive engagement, e.g. hooks or pins

Definitions

  • the invention relates to a fastening device for fastening a first scaffolding element to a second scaffolding element, comprising at least one clamping area which is provided for the non-positive fixing of the fastening device to the second scaffolding element, wherein the clamping area has a receiving element and a clamping element arranged movably thereto and the receiving element partially encloses a receiving space.
  • the fastening device further comprises at least one positioning area which is provided for positioning the fastening device on the second scaffolding element, wherein the positioning area partially encloses a receiving axis in its circumferential direction and has at least one positioning receptacle which is formed by a recess which penetrates the positioning area radially to the receiving axis, wherein the positioning area is connected to the clamping area and at least one connection interface which is provided for connecting the fastening device to a first scaffolding element. There is a distance between the positioning receptacle and the clamping area in the direction of the receiving axis.
  • the invention further relates to a scaffolding section with a fastening device and a method for attaching a connection interface to a second scaffolding element.
  • Facade scaffolding is used to design the exterior surfaces of buildings, for example to paint them. Facade scaffolding is usually constructed from facade scaffolding frames as the main components, but more recently it has also been constructed from modular scaffolding. In civil engineering, supporting scaffolding is used to position and hold various building parts. Such building parts can be, for example, prefabricated concrete parts, steel beams or steel structures. Furthermore, elements required for the construction of buildings such as temporary structures or formwork can be positioned with supporting scaffolding. Finally, scaffolding is also used in the service or inspection area, for example to support workers during large process plants, such as refineries, to safely reach the parts of the plant that are to be overhauled. In general, the basic requirements for scaffolding are that it must be easy to transport and easy to set up.
  • connection interfaces to other scaffolding elements.
  • These connection interfaces are usually permanently attached to the respective scaffolding element and are used to connect to another scaffolding element.
  • Such a connection interface can, for example, be designed as a hook to which another scaffolding element can be hung or attached.
  • Scaffolding or scaffolding systems are usually modular, which means that different scaffolding elements can be freely combined with one another like a kit in order to create different scaffold sizes and shapes.
  • there are a large number of different applications or areas of use for scaffolding for example due to different building shapes to which a scaffold is to be attached.
  • the connection interfaces permanently attached to the individual scaffolding elements are therefore often not sufficient to be able to create the individually required scaffolding shape in an application.
  • scaffolding couplings also known as scaffolding tube couplings, which can be attached to different positions on a scaffolding element and which in turn have an additional connection interface for connecting another scaffolding element.
  • These known scaffolding couplings are usually attached or clamped to a tubular section of a scaffolding element in a force-fitting manner.
  • the known scaffolding couplings comprise two gripping elements that can be rotated relative to one another, which are placed around a section of a scaffolding element in the application and are clamped to one another and around the scaffolding element using a screw connection.
  • scaffolding couplings have a large number of elements that can move relative to one another, which means that two hands are required to attach them to the scaffolding element.
  • tools are usually required to ensure that the scaffolding coupling fits tightly on the scaffolding element.
  • the position and alignment of known scaffolding couplings when attaching them to a scaffolding element must be determined by eye or by measuring with the help of a meter stick. The attachment of known scaffolding couplers to a scaffolding element is therefore complicated and therefore time-consuming and prone to errors.
  • the object of the invention is therefore to propose solutions which simplify the attachment of an additional connection interface to a scaffolding element.
  • the fastening device serves for the detachable fastening of a first scaffolding element to a second scaffolding element.
  • the first scaffolding element can be, for example, a railing rod which is attached to a scaffolding section in order to prevent people from falling from the scaffolding.
  • the second scaffolding element can be a vertical post or a second railing rod.
  • the fastening device has a clamping area.
  • the clamping area in turn comprises a receiving element and a clamping element which is movably mounted thereon.
  • the receiving element is shaped in such a way that it partially encloses a receiving space.
  • This receiving space extends along a receiving axis which represents an imaginary auxiliary geometry for describing the receiving space.
  • the receiving axis is oriented parallel or coaxially to the longitudinal axis of the second scaffolding element.
  • the receiving space preferably has a constant cross-section along the receiving axis which is oriented at a right angle to the receiving axis.
  • the receiving element only partially surrounds the receiving space in the circumferential direction around the receiving axis. This means that in the radial direction to the receiving axis, at least at one point in the circumferential direction around the receiving axis, there is an opening through which the second framework element can be introduced into the receiving space.
  • the clamping element can be changed in its position relative to the receiving element.
  • the clamping element In a clamping position, the clamping element can be positioned so that the clamping element and the receiving element together completely enclose the receiving space in the circumferential direction around the receiving axis.
  • at least two passages namely a first passage and a second passage, are arranged in the receiving element. These passages each penetrate a partial area of the receiving element.
  • the passages can be designed, for example, as openings with a rectangular cross-section. In the clamping position, in which the fastening device is non-positively attached to the second framework element, the clamping element is guided through the first passage and the second passage and penetrates them.
  • the clamping force with which the fastening device is held on the second scaffolding element is adjustable relative to the receiving element.
  • This adjustable clamping force is achieved by varying the size of the space or cross-section enclosed jointly by the receiving element and the clamping element during such a linear movement of the clamping element relative to the receiving element.
  • This jointly enclosed space can be reduced by a linear movement of the clamping element, whereby a second scaffolding element introduced into the receiving space is finally clamped between the receiving element and the clamping element.
  • the fastening device further comprises a positioning area which is provided for simplified positioning of the fastening device on the second scaffolding element. The positioning area is connected to the clamping area, preferably firmly connected.
  • the positioning area partially encloses the receiving axis in its circumferential direction. This means that the positioning area has at least one point in the circumferential direction around the receiving axis which is open and through which the second scaffolding element can be introduced into the positioning area.
  • the positioning area has at least one positioning receptacle which is formed by a recess. This recess penetrates the positioning area in the radial direction to the receiving axis and is open on one side in the direction of the receiving axis. A railing hook of a second scaffolding element designed as a vertical post can be introduced into the positioning holder through this opening.
  • the fastening device also comprises at least one connection interface which is provided for connecting the fastening device to the first scaffolding element.
  • the connection interface can be designed as a railing hook, for example.
  • the connection interface is preferably firmly attached to the positioning area, but it is also possible for the connection interface to be arranged in other sub-areas of the fastening device. It is also possible for the connection interface to be attached to the fastening device in a detachable or exchangeable manner. There is a distance between the positioning holder and the clamping area in the direction of the receiving axis.
  • This distance is intended to guide a railing hook, which is arranged on a second scaffold element designed as a vertical post, towards the opening of the position holder and to insert it.
  • This distance is in the circumferential direction and the receiving axis is provided at least in the area in which the position receptacle is located. It is thus possible that there is no distance between the position area and the clamping area, for example offset by 90° in the circumferential direction to the receiving axis. This area in which no such distance exists can, for example, be used to connect the clamping area and the position area.
  • the fastening device to comprise two or more position receptacles which are arranged at different positions in the circumferential direction around the receiving axis.
  • two position receptacles can be provided which lie opposite one another in the circumferential direction around the receiving axis.
  • a distance is arranged between each position receptacle and the clamping area, which allows access to the respective opening of the position receptacle.
  • the fastening device according to the invention can be used, if required, to attach an additional connection interface to a second scaffolding element.
  • the fastening device can be connected to the second scaffolding element in a simple manner in a force-fitting manner, whereby the second scaffolding element is introduced into the receiving space and clamped between the receiving element and the clamping element.
  • the clamping area is designed in such a way that the force-fitting fixation of the fastening device to the second scaffolding element can be established and released again by a simple, linear movement of the clamping element relative to the receiving element. This makes it possible to at least initially fix the fastening device to the second scaffolding element without the aid of tools.
  • the presence of the positioning area significantly simplifies the positioning and alignment of the fastening device relative to the second scaffolding element compared to the prior art.
  • a connection interface already present on the second scaffolding element such as a railing hook, can be introduced in a form-fitting manner into the position receptacle of the positioning area. This form-fitting already specifies the correct position and alignment of the fastening device relative to the second scaffolding element. This means that there is no need for time-consuming estimation or measuring of the correct position.
  • the position area with the position recording can be used, for example, to initially attach the fastening device to the second scaffolding element and a connecting interface arranged on it in a form-fitting manner.
  • fastening device can be used, for example, to arrange an additional connection interface on a second scaffolding element designed as a vertical post.
  • the fastening device according to the invention can also be fixed to a second scaffolding element designed as a railing rod. In this way, it is possible, for example, to connect two railing rods to one another using the fastening device and thus provide an extension of a railing rod.
  • connection interface on the fastening device can be designed in different ways. In addition to the embodiment already described, in which the connection interfaces are designed as railing hooks, these connection interfaces can also be designed as a connecting disc, eyelet, threaded bolt or other fastening element.
  • the fastening device according to the invention is simple and robust, ergonomic to use and can be used flexibly in different scaffolding sections. The fastening device according to the invention thus simplifies the attachment of an additional connection interface to a scaffolding element.
  • the receiving element is U-shaped in a plan view from the direction of the receiving axis and the first passage and the second passage are each arranged in a leg of the U, wherein in the clamping position the clamping element connects the legs of the U.
  • the receiving space is arranged inside a U-shaped receiving element.
  • the first passage and the second passage are each arranged adjacent to a free end of a leg of the U and each penetrate a leg of the U. In the clamping position in which the clamping element is guided through the first passage and the second passage, the clamping element connects the two free ends of the legs of the U.
  • This embodiment requires particularly little material, which means that the clamping area is lightweight.
  • the clamping element is designed to be wedge-shaped at least in some areas and that its wedge-shaped area has a first contact surface and a second contact surface, the first contact surface being oriented at an acute angle to the second contact surface, the first contact surface resting on an inner surface of the first passage and on an inner surface of the second passage in the clamping position.
  • the clamping element is designed to be wedge-shaped in some areas. This shape reduces or enlarges the space or cross section enclosed jointly by the clamping element and the receiving element during a linear movement of the clamping element relative to the receiving element.
  • the wedge-shaped area has a first, preferably flat, contact surface and a second contact surface oriented at an angle to it, preferably also flat, which lie opposite one another in a direction radial to the receiving axis on the clamping element.
  • first contact surface rests on at least one inner surface of the first passage and the second passage.
  • opposite second contact surface rests on the second framework element introduced into the receiving space.
  • the acute angle between the first contact surface and the second contact surface is in the range between 2° and 30°, preferably in a range between 5° and 10°.
  • the clamping element has a width in a direction perpendicular to the first contact surface, at least in some areas, in particular at one of its ends, which is greater than the clear width of the first passage, and the clamping element has a projection which projects in a direction parallel to the first contact surface and parallel to the second contact surface, wherein the thickness of the clamping element together with the projection is greater than the clear width of the first passage and smaller than the clear width of the second passage.
  • the clamping element and the two passages are shaped in such a way that the clamping element cannot be separated from the receiving element.
  • the clamping element is but movably mounted relative to the receiving element.
  • the clamping element is secured against loss by the fact that, on the one hand, the clamping element has a width in a partial area that is greater than the clear width of the first passage.
  • the width of the clamping element is defined in a direction perpendicular to the first contact surface.
  • An end area that borders the wedge-shaped area of the clamping element is preferably wider than the clear width of the first passage in a plane perpendicular to the receiving axis.
  • the clamping element is inserted into the first passage with the side opposite the wide end area, which is narrower than the clear width of the first passage in this direction.
  • a projection is also attached, which protrudes beyond the clamping element in a direction parallel to the first contact surface and parallel to the second contact surface.
  • the thickness of the clamping element together with the projection is greater than the clear width of the first passage in the direction of the receiving axis. In this way, the end region with the projection cannot be guided through the first passage either.
  • the wide end region forms a stop when the clamping element moves relative to the first passage, and on the opposite side, the projection also forms a stop for the movement of the clamping element relative to the first passage.
  • the projection is attached during assembly after the end region opposite the wide end region has been guided through the first passage.
  • the projection can be formed, for example, by a rivet or a bolt, which is inserted into the clamping element and firmly connected to it.
  • the clamping element When assembled, the clamping element can be moved between these two stops relative to the first passage.
  • the clear width of the second passage in a direction parallel to the receiving axis is larger than the thickness of the clamping element together with the projection. In this way, the end region can be guided through the second passage.
  • the clamping element is moved relative to the receiving element until the second scaffolding element is clamped in the receiving space.
  • the clear width of this third passage in a direction parallel to the receiving axis is also larger than the thickness of the clamping element together with the projection. In this way, an end region can also be guided through the third passage and pulled out of it.
  • the clamping element is thus securely connected to the receiving element, whereby the clamping element can still be moved far enough to allow the second framework element to be inserted into the receiving element and the receiving space.
  • the receiving element has at least one inner surface which is oriented parallel to the receiving axis, wherein this inner surface is arranged in a plane perpendicular to the receiving axis on the side of the receiving axis opposite the first passage.
  • the receiving element has an inner surface, preferably flat, which is intended to serve as a contact surface for a second framework element introduced into the receiving space. This inner surface is oriented parallel to the receiving axis and is arranged in the receiving space on the side opposite the first passage or the clamping element.
  • the positioning area is arranged at a distance from the receiving element in the direction of the receiving axis and the opening points towards the receiving element. There is a distance in the direction of the receiving axis at least between a partial area of the positioning area and a partial area of the clamping area.
  • the opening of the positioning holder points towards the receiving element and merges into the distance between the positioning area and the receiving element. It is possible that the positioning area and the receiving element are connected to one another via a partial area of the positioning area and/or a partial area of the receiving element. In this area of the connection there is of course no distance between the positioning area and the receiving element.
  • the opening of the positioning holder points in a direction parallel to the receiving axis towards the receiving element.
  • the clamping area is located below the positioning area. This allows the fastening device to be positioned easily with the help of gravity by hooking it onto a connection interface of the second scaffolding element.
  • the positioning area is arranged at a distance from the receiving element in the direction of the receiving axis and the opening points away from the receiving element.
  • the opening of the positioning receptacle is oriented so that it points away from the receiving element.
  • two positioning receptacles can be arranged on the positioning area, opposite each other in the direction of the receiving axis, which allow the fastening device to be aligned in two opposite directions relative to the second scaffolding element.
  • the fastening device can be used particularly flexibly in different scaffolding sections.
  • the position holder has at least one inner surface which is oriented perpendicular to the receiving axis, wherein this inner surface is arranged opposite the opening in the direction of the receiving axis.
  • the position holder has an inner surface which is provided as a contact surface of the fastening device on a partial area of the second scaffold element, in particular on a connection interface arranged thereon. This inner surface can be designed to be flat or concavely curved.
  • the positioning area extends in the circumferential direction to the receiving axis and/or tangentially to a circle around the receiving axis and that the inner surface of the positioning area oriented in the direction of the receiving axis is adjacent to the Receiving space or radially to the receiving axis outside the receiving space.
  • the positioning area is shaped such that it at least partially surrounds the receiving space.
  • the positioning area is preferably shaped such that it partially surrounds the receiving axis in the circumferential direction or is at least shaped tangentially to form a circle around the receiving axis.
  • the positioning area also at least partially encloses a second scaffolding element introduced into the receiving space.
  • An inner surface of the positioning area oriented in the direction of the receiving axis is arranged adjacent to or outside the receiving space.
  • the positioning area is shaped so that it is arranged as close as possible to a second scaffolding element received in the receiving space. In this way, a compact design is also achieved in which the fastening device only protrudes slightly beyond the second scaffolding element and therefore does not represent an obstruction for people working on the scaffolding section.
  • the positioning area is designed in a plate-shaped manner, with the positioning receptacle adjoining the edge of the positioning area and the opening interrupting the edge of the positioning area, with the plate-shaped positioning area being connected to the receiving element via a connecting area, with the positioning area being oriented parallel to the receiving element at least in some areas.
  • the positioning area is designed in a plate-shaped manner. Plate-shaped means that its length and width are significantly larger, in particular at least by a factor of two, than its thickness. The length and width of a positioning area designed in this way are preferably oriented tangentially to the receiving space in some areas.
  • the positioning receptacle is introduced into this plate-shaped positioning area in such a way that its opening interrupts the edge of the positioning area and the positioning receptacle penetrates the positioning area in the direction of its thickness.
  • a positioning area designed in this way is connected to the receiving element via a connecting area.
  • This connecting area which is arranged between the receiving element and the positioning area, can also be designed in a plate-shaped manner. It is also possible for the positioning area, the connecting area and the receiving element are formed by a common, connected component.
  • the positioning area extends in the circumferential direction around the receiving axis around half the circumference, with two positioning receptacles being provided which are arranged opposite one another radially to the receiving axis and are aligned with one another.
  • the positioning area comprises two positioning receptacles which are arranged opposite one another in the circumferential direction around the receiving axis.
  • the positioning area extends at least around half the circumference.
  • the positioning range extends by slightly more than half in the circumferential direction, for example at an angle of at least 200° around the receiving axis.
  • the positioning area is U-shaped in a plan view from the direction of the receiving axis and the two positioning receptacles are each arranged opposite one another in one leg of the U and are aligned with one another.
  • the positioning area also comprises two positioning receptacles.
  • the positioning area is U-shaped in a plan view from the direction of the receiving axis, with one positioning receptacle being arranged in one leg of the U and the two positioning receptacles being aligned with one another.
  • a connecting area is arranged between the area of the U connecting the two legs and the receiving element. Further preferably, the two legs of the U are arranged so that they are located outside the receiving space.
  • connection interface is often designed as a railing hook, which is attached to a vertical post with a weld seam.
  • the distance between the legs (the U of the positioning area) to the vertical post or second scaffolding element ensures that the position holder does not accidentally rest on an irregularly shaped area of the weld seam, but on a cylindrically shaped part of the railing hook.
  • connection interface is formed by a railing hook, which has a base region that extends radially to the receiving axis and further has a threading region connected to the base region, which is oriented at right angles to the base region, parallel to the receiving axis.
  • connection interface attached to the fastening device is formed by a railing hook.
  • This railing hook can be used to hang a railing rod, which forms a first scaffolding element, on the fastening device.
  • the connection interface can also be shaped differently, for example as an internal thread, external thread, plug connection or similar.
  • an outer surface of the base area is arranged in the direction of the receiving axis at the same height as the inner surface of the position holder opposite the opening in the direction of the receiving axis.
  • the connection interface is also designed as a railing hook.
  • the base area and the inner surface of the position holder opposite the opening of the position holder are arranged at the same height.
  • connection interface and the connection interface already firmly attached to the second scaffolding element are located in exactly the same position in the direction of the support axis, whereby the railing bars are also arranged in the same position and thus form a common railing at the same height on the scaffolding section.
  • the center of the position receptacle in the circumferential direction around the receiving axis, is spaced 90° from the center of the connection interface, in particular where, in the case of two position receptacles in the circumferential direction around the receiving axis, the center of the first position receptacle is spaced 90° from the center of the connection interface and the center of the second position receptacle is spaced a further 90° in the same direction from the center of the connection interface. Viewed from the direction of the receiving axis, the center of the position receptacle is offset by 90° from the center of the connection interface.
  • connection interface is also be offset by 90° with respect to the longitudinal axis of the second scaffolding element from a connection interface already arranged on the second scaffolding element, for example a railing hook.
  • the fastening device preferably has two position receptacles that are opposite one another and are each spaced or offset by 90° from the center of the connection interface. In this way, the fastening device can be connected to a connection interface arranged on a second scaffold element in two relative positions that are offset by 180° from one another. To do this, the connection interface arranged on the second scaffold element is inserted into one of the two position receptacles of the fastening device.
  • a fastening hook is provided which extends in the direction of the receiving axis and whose tip projects radially to the receiving axis over the receiving space, wherein the fastening hook is connected to the receiving element or the position area.
  • the fastening device is provided with a fastening hook which projects over the remaining partial areas of the fastening device.
  • the fastening hook preferably both in the direction of the receiving axis and radially thereto over the other areas of the fastening device.
  • the fastening hook also protrudes over this second scaffolding element in the radial direction of the receiving axis.
  • tensioning elements such as cords or wire ropes can be hooked onto the fastening hook, which can be used to secure elements of a scaffolding section.
  • the fastening hook can also be used to secure brackets attached to a vertical post. A portion of such a bracket can be inserted into the space between the protruding end of the fastening hook and an outer surface of the second scaffolding element and secured there in a form-fitting manner.
  • the fastening hook thus provides additional functions of the fastening device. It is also possible for several fastening hooks to be arranged on the fastening device.
  • the receiving element has a third passage which completely penetrates the receiving element, wherein the second passage is spaced from the third passage in the circumferential direction around the receiving axis, wherein in the clamping position the clamping element can be introduced through the first passage and the second passage or through the first passage and the third passage.
  • a third passage is introduced into the clamping area, which is preferably arranged adjacent to the second passage.
  • the second and third passages are located opposite the first passage in the radial direction to the receiving axis. There is a distance between the second and third passages in the circumferential direction around the receiving axis.
  • the clamping element can be guided through the first passage and the second passage, as well as through the first passage and the third passage in order to assume the clamping position. Due to the distance between the first passage and the second passage, the cross section or space enclosed jointly by the receiving element and the clamping element differs between a passage of the clamping element through the second passage and the third passage.
  • the fastening device can thus be attached to second scaffolding elements of different dimensions without any conversion or modification of the fastening device being necessary.
  • the clamping element can be guided through the first passage and the second passage in order to to clamp a second scaffolding element with a larger diameter, for example a vertical post.
  • the clamping element is passed through the first passage and the third passage. In this way, one and the same fastening device can be easily connected to different second scaffolding elements.
  • the receiving element has a third passage which completely penetrates the receiving element, wherein the third passage is arranged radially to the receiving axis closer to the receiving axis than the second passage, wherein the receiving space which is defined jointly by the receiving element and the clamping element guided through the first passage and the second passage is smaller in its cross-sectional area perpendicular to the receiving axis than the receiving space which is defined jointly by the receiving element and the clamping element guided through the first passage and the third passage.
  • the third passage has a smaller radial distance from the receiving axis than the second passage. In this way, the receiving space when the clamping element is guided through the first passage and the third passage is smaller than the receiving space in a case in which the clamping element is guided through the first passage and the second passage.
  • the fastening device can be adapted to second scaffolding elements whose external dimensions differ only slightly.
  • first lead-through, the second lead-through and the third lead-through have a rectangular cross-section.
  • a rectangular shape is particularly suitable for interaction with a clamping element which is partially wedge-shaped.
  • the shape of the lead-through is always selected so that it complementary to the shape of the clamping element, in particular its first contact surface.
  • the bushings can also have a cross-section other than a rectangle.
  • the first contact surface of the clamping element rests on an inner surface of the first passage facing away from the receiving axis and on an inner surface of the second passage facing away from the receiving axis, or the first contact surface of the clamping element rests on an inner surface of the first passage facing away from the receiving axis and on an inner surface of the third passage facing away from the receiving axis.
  • the clamping element is guided through two passages in the receiving element, so that the clamping element and the receiving element together enclose the receiving space.
  • the second contact surface of the clamping element rests on the second scaffolding element and the first contact surface of the clamping element rests on an inner surface of the first passage and the second passage or the third passage facing away from the receiving axis.
  • the scaffold section according to the invention comprises at least two scaffold elements and a fastening device.
  • the fastening device is connected to a second scaffold element in a force-fitting and/or form-fitting manner and provides a connection interface for connection to the first scaffold element.
  • the first scaffold element is connected to the second scaffold element via the fastening device and its connection interface.
  • the second scaffold element is designed in a rod-shaped manner in some areas.
  • Rod-shaped means that the second scaffold element extends along a longitudinal axis, preferably linearly. The dimensions of the rod-shaped region along the longitudinal axis are significantly larger than its cross section perpendicular to the longitudinal axis.
  • the rod-shaped region of the second scaffold element is clamped in a force-fitting manner in the receiving space between the clamping element and the receiving element.
  • In the clamping position in which the second scaffolding element is clamped in the receiving space of the fastening device there is a closed flow of force between the fastening device and the second scaffolding element.
  • a fastening device according to the invention in the scaffolding section according to the invention means that an additional connection interface can be made available on the second scaffolding element in this scaffolding section in a simple manner.
  • This additional connection interface allows the functionality of the scaffolding section to be easily expanded.
  • the functionality of a second, originally simply constructed scaffolding element can be additionally expanded by using the fastening device. It is also possible for the scaffolding section according to the invention to have more than one fastening device in order to provide several additional connection interfaces.
  • connection interface designed as a railing hook is offset in the circumferential direction to the receiving axis to the railing hook arranged on the second scaffolding element, in particular offset by 90°, and/or the connection interface designed as a railing hook is located in the direction of the receiving axis at the same height as the railing hook arranged on the second scaffolding element.
  • the additional connection interface provided by the fastening device is offset by 90° in a plan view from the direction of the receiving axis to the connection interface fixedly arranged on the second scaffolding element.
  • the connection interface of the fastening device is preferably arranged at the same height as the fixed connection interface in the direction of the receiving axis. In this way, two identical or similar connection interfaces are provided, which are arranged on the second scaffolding element offset by 90° to one another at the same height. This embodiment is particularly advantageous for attaching two railing bars to a corner of a scaffolding section.
  • the longitudinal direction of the first scaffolding element is oriented at an angle of greater than 0°, in particular at a right angle, to the longitudinal axis of the second scaffolding element.
  • the first scaffolding element, in particular a railing rod, and the second scaffolding element, in particular a vertical post are arranged at an angle to one another in the scaffolding section. This angle is preferably substantially 90°.
  • the second scaffolding element is formed by a railing rod which has a rod-shaped region in its longitudinal direction between two end regions, wherein this rod-shaped region is introduced into the receiving space of the fastening device and the first scaffolding element is formed by a further railing rod, wherein the connection interface is designed as a railing hook and the connection interface is guided through an opening in the first scaffolding element.
  • the first scaffolding element and the second scaffolding element are each formed by a railing rod.
  • the fastening device is used to connect or chain two railing rods together in order to obtain a railing rod with a larger, individually adjustable length.
  • Such a railing rod with an individual length is often required in end sections of a scaffold which do not correspond to the normal grid of the scaffold.
  • a rod-shaped area of a railing rod is introduced into the receiving space and clamped there.
  • the connection interface on the fastening device is designed as a railing hook and the first scaffolding element is positively connected to this railing hook.
  • a fastening device which has a third passage in the receiving element and can thus be connected to second scaffold elements with different dimensions.
  • the opening in the first scaffolding element through which the connection interface designed as a railing hook is guided completely penetrates the first scaffolding element in a direction perpendicular to its longitudinal direction and is arranged in the longitudinal direction within 10% of the total length of the first scaffolding element away from one of its ends.
  • the first scaffolding element which is designed as a railing rod, has at least one opening which is used to pass through the connection interface of the fastening device. This opening is arranged at one end in the longitudinal direction of the first scaffolding element.
  • the second scaffolding element is preferably designed to be identical or very similar to the first scaffolding element.
  • the longitudinal direction of the first scaffolding element is oriented parallel to the longitudinal direction of the second scaffolding element.
  • Such an orientation makes it easy to create a connection between two scaffolding elements designed as railing rods, which has a greater length than one of the railing rods alone.
  • the method according to the invention serves to attach an additional connection interface to a second scaffolding element, which is designed as a vertical post with at least one railing hook.
  • a fastening device according to one of the previously described embodiments is used for the method.
  • the method is preferably carried out in the specified order of the method steps A) to D).
  • the method can be used in the reverse order of the method steps for removing an additional connection interface from a scaffolding section, in particular when dismantling this scaffolding section.
  • a first method step A the clamping element of the fastening device is first moved so that the second scaffolding element can be introduced into the receiving space. To do this, the clamping element is pulled out of the second or third passage, but remains partially in the first passage.
  • a second method step B the second scaffolding element is introduced into the receiving space or, conversely, the receiving space or the fastening device is moved relative to the second scaffolding element so that the second scaffolding element enters the receiving space.
  • the longitudinal axis of the second scaffolding element is oriented parallel to the receiving axis of the fastening device.
  • the fastening device is positioned relative to the second scaffolding element, whereby the railing hook attached to the second scaffolding element serves as an aid for this positioning.
  • the railing hook is inserted into the position holder until the railing hook is at one of the openings of the position holder opposite inner surface of the position holder. This positioning is easy to carry out, since the attachment between the position holder and the railing hook clearly indicates the correct positioning both in the longitudinal direction to the holder axis and in the circumferential direction to the holder axis.
  • a fourth process step D the clamping element is moved into the clamping position, whereby it is guided through the first passage and either the second passage or the third passage.
  • the second scaffolding element is clamped in the receiving space and thus fixed in a force-locking manner.
  • force is transmitted between the fastening device and the second scaffolding element both via the force-locking fixation in the receiving space and via the form-locking fixation between the railing hook of the vertical post and the position holder.
  • the method according to the invention is easy to carry out and does not require any tools for fastening the fastening device.
  • the clamping element can be additionally fixed with hammer blows after an initial manual fixation.
  • the correct positioning of the additional connection interface on the fastening device can be made easier and less susceptible to errors by the method according to the invention compared to the prior art.
  • Fig.1 shows a perspective view of a first embodiment of a scaffold section 100 according to the invention.
  • the scaffold section 100 shown comprises a fastening device 1 and a second scaffold element 3, which is formed here by a vertical post.
  • the first scaffold element 2 belonging to the scaffold section 100 according to the invention is shown in Fig.1 not shown in order to allow better recognition of the fastening device 1.
  • the vertical post, which forms the second scaffolding element 3 is rod-shaped in the area shown and has a circular cross-section that extends along a longitudinal axis of the second scaffolding element 3.
  • a connection interface in the form of a railing hook GH is arranged on the second scaffolding element 3, which is firmly and permanently connected to the second scaffolding element 3.
  • the railing hook GH serves as an aid for positioning the fastening device 1 on the second scaffolding element 3.
  • the fastening device 1 comprises a clamping area 11 arranged at the bottom of the illustration and a positioning area 12 arranged at the top connected to it via a connection area VB.
  • the clamping area 11 comprises a U-shaped receiving element 111 and a clamping element 112 which is movably mounted thereon.
  • the clamping element 112 is in Fig. 1 and 2 largely covered by the second scaffold element 3.
  • the clamping element 112 is in Fig.3 better seen and described.
  • the receiving element 111 and the clamping element 112 enclose the receiving space AR in the clamping position shown.
  • the receiving space AR is a hollow interior in the fastening device 1, into which a second scaffolding element 3 can be introduced and fixed.
  • the receiving space AR extends along a receiving axis AA, which represents an imaginary auxiliary geometry for describing the fastening device 1 and the scaffolding section 100.
  • the receiving axis AA runs in the middle of the receiving space AR in the direction in which the distance between the receiving element 111 and the position area 12 also extends.
  • the receiving element 111 has a first passage 111a, a second passage 111b and a third passage 111c.
  • the first passage 111a is arranged in the leg of the U-shaped receiving element 111 facing away from the viewer and in Fig.2 can be seen.
  • the second receptacle 111b and the third receptacle 111c are arranged in the leg of the receiving element 111 facing the viewer and completely penetrate this leg.
  • the clamping element 112 is guided through the first passage 111a and the second passage 111b and completely penetrates these two passages.
  • the second framework element 3 is clamped in the receiving space AR between the clamping element 112 and the receiving element 111, whereby the clamping force required for this was generated by a linear movement of the clamping element 112 relative to the receiving element 111. Details on the generation of this clamping force are described in connection with Fig.3 described.
  • the third passage 111c is offset or spaced from the second passage 111b in the circumferential direction around the receiving axis AA. Furthermore, there is also a distance between the third passage 111c and the second passage 111b in the direction of the receiving axis AA.
  • the clamping element 112 is guided through the first passage 111a and the second passage 111b, whereby the clamping element 112 and the receiving element 111 together enclose a larger receiving space AR, which is used to receive the Vertical post designed second scaffolding element 3.
  • a smaller receiving space AR can be formed by guiding the clamping element 112 through the first passage 111a and the third passage 111c.
  • Such a smaller receiving space is suitable for receiving a smaller dimensioned second scaffolding element 3, such as a railing rod.
  • All bushings 111a, 111b and 111c have a rectangular cross-section in the embodiment shown.
  • the positioning area 12 arranged above the receiving element 111 in the illustration serves to position the fastening device 1 relative to the second scaffolding element 3.
  • the positioning area 12 has at least one positioning receptacle 121, which is formed by a recess that completely penetrates a partial area of the positioning area 12 radially to the receiving axis AA.
  • An opening 1211 forms the access to the positioning receptacle 121 and thus enables the insertion of a railing hook GH into the positioning receptacle 121.
  • the positioning area 12 comprises two positioning receptacles 121 arranged opposite one another, which are aligned with one another.
  • each position receptacle 121 has an inner surface which is oriented perpendicular to the receiving axis AA and serves as a stop surface for attaching to a railing hook GH when the fastening device 1 is attached.
  • the positioning area 12 with the openings 1211 of the two positioning receptacles 121 is arranged at a distance from the clamping element 111 of the clamping area 11 in the direction of the receiving axis AA.
  • the distance between the positioning area 12 and the clamping area 11 in the direction of the receiving axis AA thus corresponds at least to the diameter of the railing hook GH.
  • the distance between the clamping area 11 and the positioning area 12 can be, for example, 10 to 30 mm.
  • the positioning area 12 is also U-shaped in a plan view from the direction of the receiving axis AA, with two positioning receptacles 121 being arranged opposite one another in each leg of the U.
  • the positioning area 12 extends in the circumferential direction around the receiving axis AA by more than half of the circumference.
  • the two legs of the U and the connecting area between them are each designed in the form of a plate, with each of these areas being oriented tangentially to a circle around the receiving axis AA.
  • the two legs of the U-shaped positioning area 12 are located outside the receiving space AR and, in the mounted state shown, are at a distance from the cylindrical outer surface of the second framework element 3. This is better described as a Fig.3 can be seen. This distance between the areas of the positioning area 12 in which the position receptacle 121 is arranged to the second scaffolding element 3 prevents overdetermination when assembling the fastening device 1.
  • a plate-shaped connection area VB connects the receiving element 111 to the positioning area 12.
  • connection interface 13 of the fastening device 1 is designed in the embodiment shown as a railing hook, which is designed very similarly or identically to the railing hook GH of the second scaffolding element 3. In this way, the railing hook GH and the connection interface 13 can be used in the same way to connect to a first scaffolding element 2, for example in the form of a railing rod.
  • the connection interface 13 has a base area 131 which, in the embodiment shown, extends from the positioning area 12 in the radial direction away from the receiving axis A. Connected to the base area 131 is a threading area 132 which is oriented upwards at a right angle to the base area 131, away from the clamping area 11.
  • a fastening hook 14 is attached to the edge of the clamping area 11 pointing downwards in the illustration, pointing away from the positioning area 12.
  • the fastening hook 14 is firmly connected to the clamping area 11, extends in the direction of the receiving axis AA and radially to the receiving axis AA away from the receiving space AR.
  • the fastening hook 14 can be used to secure objects or other components or elements of the scaffolding section, such as a console.
  • the positioning area 12 is used in combination with the railing hook GH to easily position the fastening device 1 relative to the already attached railing hook GH.
  • fastening device 1 it is also possible to fasten the fastening device 1 elsewhere on the second scaffolding element 3 without a railing hook GH being inserted into a positioning receptacle 121. Furthermore, it is possible to fasten the fastening device 1 in the opposite orientation to the second scaffolding element 3, in which case the clamping area 11 is arranged above the positioning area 12.
  • Fig.2 shows another perspective view of the first embodiment of a scaffold section 100 of Fig.1 .
  • the same scaffold section 100 is shown as in Fig.1 .
  • the viewing direction in Fig.2 corresponds to a viewing direction in Fig.1 from the right rear onto the scaffold section 100.
  • Fig.2 the description applies to Fig.1 .
  • the first passage 111a can be clearly seen.
  • the dimension of the first passage 111a oriented radially to the receiving axis AA is larger than the dimensions of the second passage 111b and the third passage 111c oriented in this direction in the opposite leg of the receiving element 111.
  • the dimension in the direction of the receiving axis AA of the first passage 111a is smaller than the corresponding dimensions of the second passage 111b and the third passage 111c.
  • the one Fig.2 visible end region of the clamping element 112 has a width that is greater than the clear width of the first passage 111a in a direction radial to the receiving axis AA. This widened end region represents a loss protection, which makes it impossible to move the clamping element 112 to the rear left through the first passage 111a.
  • a projection is arranged on the opposite end region of the clamping element 112, which projects in the direction of the thickness.
  • the thickness of the clamping element 112 together with the projection is greater than the clear width of the first passage 111a in a direction parallel to the receiving axis AA. In this way, the Fig.1 recognizable end region also cannot move through the first passage 111a. In this way, the clamping element 112 cannot be accidentally separated from the receiving element 111. Nevertheless, the clamping element 112 is movable relative to the receiving element 111.
  • the second position holder 121 is clearly visible, since no railing hook GH is inserted in this position holder 121.
  • the opening 1211 of the position holder 121 points towards the receiving element 111.
  • the position holder 121 oriented to the front right is identical to the position holder 121 oriented to the rear left.
  • Fig.3 shows a plan view of the first embodiment of a scaffold section 100 from Fig.1 .
  • the scaffold section 100 is made of Fig.1 in a top view from the direction of the recording axis AA.
  • Fig.3 For elements not described, please refer to the description Fig. 1 and 2 referred to.
  • the clamping element 112 can be clearly seen.
  • the clamping element 112 has a wedge-shaped area in its center, which is limited on two opposite sides by two end regions. The width of the end region pointing to the right is greater than the width of the rest of the clamping element 112.
  • a projection which extends out of the plane of the drawing is arranged on the end region pointing to the left.
  • the wedge-shaped region of the clamping element 112 has a first contact surface 1121 pointing away from the second scaffolding element 3 and a second contact surface 1122 resting on the second scaffolding element 3.
  • the first contact surface 1121 is oriented at an acute angle to the second contact surface 1122.
  • the second contact surface 1122 rests on an outer surface of the second scaffolding element 3.
  • the first contact surface 1121 rests on an inner surface of the first passage 111a and the second passage 111b, wherein these inner surfaces are oriented parallel to the receiving axis AA and point in the direction of the receiving space AR.
  • the clamping element 112 is first moved all the way to the right so that an opening is released for inserting the second scaffolding element 3.
  • the clamping element 112 is then moved into the position shown, wherein the end region facing to the left is guided through the second passage 111b.
  • the clamping element 112 is then moved in a linear movement from right to left, wherein the second contact surface 1122 increasingly approaches the outer surface of the second scaffolding element 3.
  • the second contact surface 1122 rests on the second scaffolding element 3 and the first contact surface 1121 rests on the inner surfaces of the first passages 111a and 111b. If, starting from this state, further force is exerted on the clamping element 112 from right to left, the second scaffold element 3 is clamped in the receiving space AR. For this fixation, only a simple linear movement of the clamping element 112 relative to the receiving element 111 is required.
  • the connecting interface 13 of the fastening device 1 designed as a railing hook, is arranged in the circumferential direction around the receiving axis AA offset by 90° to the railing hook GH of the second scaffolding element 3.
  • This embodiment of a scaffolding section of the 100 allows a first scaffolding element 2, designed as a railing rod, to be suspended from the railing hook GH and the connecting interface 13.
  • the longitudinal axes of the two railing rods can be oriented at a 90° angle to each other, which makes it easy to attach a railing angled at 90° to a scaffold section 100.
  • a first scaffolding element 2 designed as a railing pole is shown in Fig. 4 and 5 to see.
  • Fig.4 shows a perspective view of a second embodiment of a framework section 100 according to the invention.
  • the same embodiment of a fastening device 1 is shown as in Fig. 1 to Fig. 3
  • the second scaffold element 3 is formed by a railing rod, of which only the middle area is shown.
  • the second scaffold element 3 designed as a railing rod is introduced into the receiving space AR, wherein the longitudinal axis of the second scaffold element 3 is oriented parallel or coaxially to the receiving axis AA.
  • a rod-shaped portion of the second scaffold element 3 is clamped in the receiving space AR between the receiving element 111 and the clamping element 112.
  • the clamping element 112 is guided through the invisible first passage 111a and the visible third passage 111c.
  • the receiving space AR is smaller and thus adapted to the smaller diameter of the second scaffolding element 3 designed as a railing rod compared to a vertical post.
  • the positioning area 12 is not used to position the fastening device 1. Due to the force-fitting connection between the fastening device 1 and the second scaffolding element 3, the fastening device can be continuously fastened to the second scaffolding element 3 at different locations and rotational positions.
  • a first scaffolding element 2 also in the form of a railing rod, is positively connected to the connection interface 13 designed as a railing hook.
  • the longitudinal axis of the first scaffolding element 2 is also oriented essentially parallel to the receiving axis AA.
  • the connection interface 13 is guided through an opening in an end region of the first scaffolding element 2.
  • two railing rods in the form of the first scaffolding element 2 and the second scaffolding element 3 are connected or linked together.
  • an extended railing rod with individually adjustable length can be created with the aid of the Manufacture fastening device 1.
  • Such an extended railing bar is often required in scaffolding sections in which the usual grid dimension of the scaffolding system cannot be maintained.
  • Fig.5 shows a side view of a second embodiment of a scaffold section 100 from Fig.5 .
  • Fig.5 is the same scaffold section 100 as in Fig.4 shown from the side.
  • the third passage 111c is arranged closer to the receiving axis AA in the radial direction to the receiving axis AA than the second passage 111b.
  • the receiving space AR enclosed jointly by the clamping element 112 and the receiving element 111 is thus smaller than when the clamping element 112 is inserted into the second passage 111b.
  • the positions of the second passage 111b and the third passage 111c can be adapted to the size of the second scaffolding elements 3 to be fixed. It is also possible to provide further, additional passages in the receiving element 111 in order to be able to fix additional sizes of second scaffolding elements 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP23189580.6A 2022-10-13 2023-08-03 Dispositif de fixation pour fixer un élément d'échafaudage Pending EP4353924A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022126678.8A DE102022126678A1 (de) 2022-10-13 2022-10-13 Befestigungsvorrichtung zur Befestigung eines Gerüstelementes

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EP4353924A1 true EP4353924A1 (fr) 2024-04-17

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EP23189580.6A Pending EP4353924A1 (fr) 2022-10-13 2023-08-03 Dispositif de fixation pour fixer un élément d'échafaudage

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EP (1) EP4353924A1 (fr)
DE (1) DE102022126678A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012046049A2 (fr) * 2010-10-06 2012-04-12 Steelhoard Limited Rambarde de sécurité d'échafaudage et procédé d'assemblage
WO2018019877A1 (fr) * 2016-07-27 2018-02-01 Peri Gmbh Élément de fixation
WO2022057960A1 (fr) * 2020-09-17 2022-03-24 Wilhelm Layher Verwaltungs-Gmbh Élément de raccordement pour un système d'échafaudage destiné au montage d'une barre de garde-corps d'échafaudage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451431A1 (fr) 1979-03-16 1980-10-10 Martinez Clement Barriere de protection, notamment pour echafaudages
FR2693498B1 (fr) 1992-07-10 1994-09-02 Hussor Erecta Sa Dispositif de stabilisation et de maintien d'étais pour coffrage de dalles ou analogues.
DE19814351A1 (de) 1998-03-31 1999-10-07 Plettac Ag Eckanschluß für ein Schutzgeländer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012046049A2 (fr) * 2010-10-06 2012-04-12 Steelhoard Limited Rambarde de sécurité d'échafaudage et procédé d'assemblage
WO2018019877A1 (fr) * 2016-07-27 2018-02-01 Peri Gmbh Élément de fixation
WO2022057960A1 (fr) * 2020-09-17 2022-03-24 Wilhelm Layher Verwaltungs-Gmbh Élément de raccordement pour un système d'échafaudage destiné au montage d'une barre de garde-corps d'échafaudage

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