EP4177418B1 - Railing beam for a leading railing, method of constructing a scaffold, and scaffold. - Google Patents

Description

The invention relates to a railing beam for a leading railing, as well as a scaffold comprising a railing beam.

Scaffolding railings that extend forward are well known. They are characterized by the fact that a scaffolding railing can be installed by a user who is on a lower scaffolding level or on the ground. This has the advantage that a user cannot fall down when he or she reaches the scaffolding level with the mounted railing, but is secured by the railing from the first time he or she steps onto the scaffolding level with the railing that extends forward. With the railings known from the state of the art, the railing beams can be mounted forward. However, the known railing beams can only be secured against shifting/falling down when a user is on the level of the railing beams. When erecting such a scaffold, a user is therefore at least partially on a scaffolding level with pre-assembled railing beams that are not yet secured. This means that more assembly steps are necessary and accidents cannot be completely ruled out. Scaffolding elements that can be mounted and secured forward are also known. However, these scaffolding elements are bulky, heavy and difficult to assemble.

EN 10 2004 055 394 A1 discloses a connecting arrangement for a railing device of a scaffolding.

US7,195,101 B2 reveals a facade scaffolding with a vertical post and a railing beam.

EP 3 719 234 A1 reveals a strut of a scaffolding.

DE 297 00 962 U1 discloses a scaffolding element which comprises a hollow profile and connections arranged at the two ends of the hollow profile.

WO 2011/078670 A discloses a method for producing a modular scaffolding system.

DE 101 07 889 A1 reveals a ballast weight for weighing down a stationary or mobile scaffold.

KR 200 414 367 Y1 reveals a wheel chock for vehicles.

US 4,819,910 A reveals a ramp onto which a vehicle can be driven.

DE 20 2010 008349 U1 discloses a loading device for a vehicle.

It is the object of the invention to overcome the disadvantages of the prior art and in particular to provide a scaffold and scaffold elements which can be used advantageously and ensure an increased level of safety.

The object is achieved by a railing according to claim 1 and by a scaffold according to claim 6.

The object of the invention is achieved according to claim 1 by a railing rail for a leading railing, which comprises at least a first and a second connection means for the respective fastening to a connection element of a vertical post. The railing beam comprises a central beam, which is designed in particular as a hollow tube and has a longitudinal axis. The railing beam comprises a first and a second section, wherein the first section comprises the first connection means and the second section comprises the second connection means. The connection means are preferably flat in relation to the central beam. The first and/or second connection means comprises an opening which has a central section and recesses, wherein the recesses are arranged radially from the center of the central section.

Such a railing can be mounted and secured particularly advantageously in advance.

Hollow tube means that the railing beam is hollow and can have a circular, elliptical or polygonal cross-section, for example four, six or octagonal. The central beam can be designed as a U-profile. The railing beam can have recesses to reduce weight or an ergonomic surface for better assembly. The railing beam has a length of between 0.5 m and 4 m, preferably between 1.5 m and 3.1 m.

The central section of the opening can be circular. It is also possible for the central section to be designed as a quadrilateral, polygon, square or oval. The recesses are preferably each designed as a rectangle. It is also possible for the recesses to be composed of several geometric bodies. The recesses can be designed as rectangles, on the short edge of which a semicircle is formed on the side facing away from the central section. The centers of the central sections of the openings can for example, have a distance of 1500 mm, 2000 mm, 2250 mm, 2500 mm or 3000 mm.

The railing can be made of steel and/or aluminum. The railing can also be made of plastic and/or a composite material.

The first section and the second section of the railing can be arranged so that they can move relative to one another. For example, the first section of the railing can partially accommodate the second section of the railing or the second section of the railing can partially accommodate the first section of the railing, so that the first section is movable relative to the second section. This allows the first section and/or the second section to be moved along the longitudinal axis. The length of the railing can thus be varied. The railing can comprise locking means such as screws and/or split pins and/or pins. The first section and/or the second section can have complementary locking devices such as bores or split pin holes. The first section and/or the second section of the railing can therefore basically be movable but lockable.

The first and/or second connection means can have a cavity. It is also possible for the first and/or second connection means to be designed without a cavity. In particular, the first and/or second connection means is flattened so that it can easily be pushed over a fastening means of a vertical post and can then be locked.

The first and/or the second connection means can be coaxial in cross-section to a longitudinal axis of the railing, in particular of the central spar. Preferably, the extent of the first and/or second connecting means in a first direction perpendicular to the longitudinal axis is greater than the extent of the central spar and in a second direction perpendicular thereto is smaller than the extent of the central spar. In particular, the extent in the second direction is less than 10 mm. Preferably, the plane of the opening extends along the first direction.

According to the invention, the railing has four recesses per opening. By arranging four recesses per opening on the railing, the four recesses can be arranged particularly advantageously. This simplifies the assembly and securing of the railing.

The recesses can each have a length and a width, with the length being greater than the width. In particular, the lengths of the recesses extend in a radial direction starting from the center of the central section of the opening.

As a result, the opening of the connecting elements is designed in such a way that the railing rail can be mounted and secured complementarily to a connecting element. The respective length of the recess is preferably longer than the respective width of the recess. The length of the recesses is preferably between 10 mm and 40 mm, in particular between 15 mm and 25 mm. The width of the recesses is preferably between 2 mm and 14 mm, in particular preferably between 6 mm and 10 mm.

According to the invention, the four recesses have longitudinal axes which run in the direction of the length of the recesses. The longitudinal axes of the recess preferably run radially away from the center of the central section. According to the invention, the longitudinal axes of the four recesses describe a cross.

This design of the recesses makes it particularly advantageous to mount and secure the railing in advance.

The four recesses can be designed to be point-symmetrical. This means that the railing can be easily inserted into a connecting element from below and is then fixed in a horizontal position.

The longitudinal axis of the recesses of the railing beam can be arranged at an angle of between 40° and 50°, preferably at an angle of substantially 45°, with respect to the longitudinal axes of the central beam. In addition, the longitudinal axes of the recesses can be arranged at an angle of between 130° and 140°, preferably at an angle of substantially 135°, with respect to the longitudinal axis of the central beam. The longitudinal axes of two recesses arranged point-symmetrically to one another can be the same.

The described angles between the longitudinal axis of the railing beam and the longitudinal axes of the recesses result in a geometry of the recesses through which the railing beam can be mounted and secured in a particularly advantageous manner in front and complementary to the connecting elements.

The surface of the central spar can have one, in particular two, projections projecting radially outwards.

The projection ensures that the railing can be mounted particularly advantageously. The projection has a longitudinal extension radially from the longitudinal axis of the central rail, wherein this radial extension is formed in particular parallel to the first direction of the first and/or second connecting means. Preferably, two projections are formed which are arranged symmetrically to the central axis of the railing, which is formed perpendicular to the longitudinal axis of the railing.

The projection can be designed, for example, as a cube or cuboid. It is also possible for the projection to be essentially cuboid-shaped with rounded edges and/or corners. The projection can also be circular-cylindrical. It is also possible for the projection to be composed of several geometric figures. It is thus possible for the projection to have an essentially cuboid-shaped part and for half circular cylinders to be arranged on two opposite sides of the cuboid. The projection can be made of steel or plastic or a composite material. The projection preferably has the same material as the railing rail. The projection preferably protrudes from the central rail between 10 mm and 40 mm, particularly preferably between 20 mm and 30 mm, from the surface of the central rail. The projection can be formed by a pin that can be inserted into a hole in the central rail. The longitudinal axis of the pin is in particular at least 25% longer than the diameter of the central rail. The distance of the projection from the center of the opening of the respective closer connection means can be less than 30 cm and more than 8 cm.

The task is also carried out by a vertical post of a scaffold with a retaining pin for the detachable attachment of a railing solved, which vertical post, however, does not form part of the invention. The retaining pin comprises a longitudinal axis which is arranged perpendicular to a longitudinal axis of the vertical post. The retaining pin comprises a locking element which is movably, in particular displaceably, mounted on the retaining pin. The locking element can be brought into an insertion position and into a locking position. The retaining pin has a groove arranged essentially perpendicular to the longitudinal axis of the retaining pin, into which a connecting means of a railing beam can be at least partially inserted.

The retaining pin allows a railing rail to be attached to the vertical post particularly easily, safely and with no complications.

When used as intended, the groove is preferably arranged on the upper side of the retaining pin, so that a railing rail remains in the groove under its own weight. The groove has a length, a height and a width. The height of the groove is between 2 mm and 8 mm, preferably between 4 mm and 6 mm. The width of the groove is between 4 mm and 10 mm, preferably between 6 mm and 8 mm.

The groove is arranged in such a way that a connecting means of a railing can be pushed over the locking element and then fastened in the groove. When the locking element of the retaining pin is in the insertion position, the first and/or second connecting means of a railing can be pushed over the locking element and the retaining pin until it engages in the groove. When the locking element of the retaining pin is in the locking position, a first and/or second connecting means of a railing can only be pushed over the locking element of a vertical standing vertical post when the longitudinal axis of the central rail is arranged substantially orthogonal to the longitudinal axis of the retaining pin and the longitudinal axis of the central rail is arranged at an angle of substantially 45° and/or 135° to a horizontal plane. When the locking element is in the locking position and the first and/or second connecting means of the central rail have been pushed over the locking element, the angle of the longitudinal axis of the central rail with respect to a horizontal plane can be changed such that the railing rail can no longer slip off the retaining pin. Rather, the railing rail is positively secured in this position in that the first and/or second connecting means of the railing rail are secured by the locking element.

The vertical post can comprise a partial perforated disc, wherein the retaining pin is formed adjacent to the partial perforated disc. The partial perforated disc can enclose at least 190° of the vertical post.

Because the vertical post includes a partial perforated disc, it can be used advantageously in scaffolding construction. The longitudinal axis of the vertical post can intersect the plane of the partial perforated disc essentially perpendicularly.

Also disclosed is a vertical frame not according to the invention, which comprises two vertical posts as described above and at least one crossbar for connecting the two vertical posts. The crossbar is fixed to the vertical posts in the middle third of the length of the vertical posts. The vertical frame comprises an upper section above the crossbar and a lower section below the crossbar.

With such a vertical frame, a leading scaffold can be erected particularly easily and quickly.

The crossbar can be designed as a hollow tube or as a U-profile, for example. The longitudinal axis of the crossbar can be perpendicular to the longitudinal axis of the two vertical posts.

The vertical frame may have two diagonal struts, each connecting a vertical post to the crossbar, wherein the diagonal struts have a diagonal strut opening on the side facing away from the crossbar.

The diagonal brace stabilizes the vertical frame and allows the individual elements to be dimensioned advantageously. The vertical frame can be easily assembled through the diagonal brace opening. It is possible to lift the vertical frame and place the diagonal brace opening onto a projection of another scaffolding element. The vertical frame is then held by the projection. This makes it possible to pre-assemble the vertical frame on a scaffold.

In the vertical frame as described above, the vertical posts can comprise two partial perforated discs with retaining pins in the upper section, wherein the retaining pin is arranged in the direction of the other vertical post.

By arranging partial perforated discs with retaining pins on the vertical posts of the vertical frame, both railings and other scaffolding elements can be conveniently mounted on the vertical frame. The longitudinal axes of the retaining pins can be designed parallel to the plane of the partial perforated disc. The longitudinal axis of the Vertical rods can cut the longitudinal axes of the retaining pins as well as the plane of the partial hole disc perpendicularly.

A mounting aid can be formed in the lower section of a vertical post of a vertical frame as described above. The mounting aid can extend towards the other vertical post and comprise a mounting aid opening.

The assembly aid allows the vertical frame to be mounted particularly conveniently.

It is possible to lift the vertical frame and place it on a projection of another scaffold element using the assembly aid. The vertical frame is then fixed to another scaffold element by gravity and the projection. This makes it possible to pre-assemble the vertical frame on a scaffold. The assembly aid opening can be circular-cylindrical or cuboid-shaped. Other geometric shapes are also conceivable. The decisive factor is that a projection of another scaffold element can be inserted into the assembly aid opening of the assembly aid.

The crossbar of a vertical frame as described above may comprise a slip prevention device for a scaffold deck.

The anti-slip device allows scaffolding planks to be conveniently placed on the crossbar and secured against displacement.

When used as intended, the anti-slip device can be arranged on the top of the crossbar of the vertical frame. The anti-slip device can be made of steel, aluminum or other materials. The anti-slip device is preferably made of the same material as the crossbar.

The anti-slip device can be designed as a circular cylinder. It is also conceivable that the anti-slip device could be in the form of a cuboid or circular cylinder with rounded corners and/or edges. It is also possible for the anti-slip device to be in the shape of half a sphere.

1. A Aufbauen einer ersten Gerüstsektion auf einer ersten Ebene, wobei die erste Gerüstsektion einen ersten und einen zweiten Vertikalrahmen umfasst;
2. B Befestigung eines dritten Vertikalrahmens, insbesondere eines Vertikalrahmens wie oben beschrieben, auf dem zweiten Vertikalrahmen, wobei der dritte Vertikalrahmen auf den zweiten Vertikalrahmen gesteckt wird;
3. C Befestigen eines Geländerholms wie vorhergehend beschrieben an dem dritten Vertikalrahmen, wobei der Geländerholm mit dem ersten Anschlussmittel über den Haltezapfen des dritten Vertikalrahmens geschoben wird.

The object of the invention is also achieved according to claim 5 by a method for constructing a scaffold. The method comprises the following steps:

1. A erecting a first scaffold section on a first level, the first scaffold section comprising first and second vertical frames;
2. B fastening a third vertical frame, in particular a vertical frame as described above, on the second vertical frame, wherein the third vertical frame is plugged onto the second vertical frame;
3. C Fastening a railing post as previously described to the third vertical frame, whereby the railing post is pushed with the first connecting means over the retaining pin of the third vertical frame.

• D Befestigen des Geländerholms an einem vierten Vertikalrahmen, insbesondere an einem Vertikalrahmen wie oben geschrieben;
• E Befestigen des vierten Vertikalrahmens auf dem ersten Vertikalrahmen, wobei der vierte Vertikalrahmen angehoben und auf den ersten Vertikalrahmen gesteckt wird.

The method may also comprise the following further steps:

• D Attaching the guardrail to a fourth vertical frame, in particular to a vertical frame as described above;
• E Attach the fourth vertical frame to the first vertical frame by lifting the fourth vertical frame and placing it on the first vertical frame.

As a result of the lifting movement of the fourth vertical frame, the first connection means of the railing bar is locked by the retaining pin of the third vertical frame. The second connection means of the railing bar is locked by the retaining pin of the fourth vertical frame. The locking element of the retaining pin of the third vertical frame can be in the locking position at least during method steps B to E. The locking element of the retaining pin of the third vertical frame can also be in the locking position during the entire method. The locking element of the retaining pin of the fourth vertical frame can also be in the locking position during the entire method. It is also possible for the railing bar to be attached to the fourth vertical frame by sliding the railing bar over the retaining pin, with the locking element in the insertion position. The locking element can then be brought into the locking position.

A scaffold can be supplemented by a fastening element not according to the invention for connecting a crossbar of a scaffold to a vertical post, in particular as described above. The fastening element comprises a wedge head and a wedge, wherein the wedge can be inserted through an opening in the wedge head and, in use, a positive connection can be achieved between the fastening element and a partial perforated disk of a vertical post of a scaffold. The wedge head has an upper head part and a lower head part, each with an opening, wherein a slot for receiving the partial perforated disk is formed between the upper head part and the lower head part. The surface of the wedge head is at least partially essentially flush with the surface of the crossbar. When inserted, the wedge protrudes no more than 5 mm from the wedge head on its head side.

The essentially flush transition between the wedge head and the crossbar ensures that no components protrude suddenly into the free air space. This means that there are no protrusions that could injure users. The fact that the wedge does not protrude more than 5 mm from the wedge head when inserted also ensures that the wedge does not obstruct any other components during further assembly of the scaffolding.

It is possible that the wedge does not protrude more than 3 mm from the wedge head on its head side when inserted. It is also possible that the wedge is essentially flush with the surface of the wedge head with its head side when inserted.

Also disclosed, but not according to the invention, is an anti-tilt block for securing a scaffold deck against tipping. The anti-tilt block comprises a first stop surface for a scaffold deck, a second stop surface for a scaffold deck, a stop surface for a first console element, a stop surface for a second console element, a stop surface for a scaffold tube, a stop surface for a partial perforated disk and a groove. The groove has a longitudinal axis. The groove runs in the second stop surface for the scaffold deck. The longitudinal axis of the groove is essentially parallel to the first stop surface for the scaffold deck. The stop surface for the scaffold tube and the stop surface for the first console element are each curved.

The anti-tilt block makes it possible to secure scaffolding decks particularly effectively against tipping over.

The anti-tilt block can be made of steel or plastic. The anti-tilt block can also be made of aluminum or a composite material. The stop surface for the scaffold tube and the stop surface for the first console element, which are curved, can have a circular curvature. The stop surface for the scaffold tube and the stop surface for the first console element can also have a curvature that includes several radii. The stop surface for the scaffold tube and the stop surface for the first console element can also have a curvature that includes several surfaces that are angled to one another.

The groove has a length, a width and a height. The height is preferably between 1.5 mm and 8 mm, particularly preferably between 2 mm and 4 mm. The width is preferably between 1 mm and 4 mm, particularly between 1.5 mm and 3 mm. The groove can be designed as a cuboid-shaped recess. The groove can also be designed as a recess that is composed of several geometric bodies. It is possible for the groove to be designed as a recess that is composed of a cuboid and half a circular cylinder. Other geometric shapes of the groove are also conceivable.

The anti-tilt block as described above can have a distance between the groove and the first stop surface for the scaffolding deck in the range of 14 - 17 mm, essentially 15.5 mm.

This distance ensures that the anti-tilt block can be mounted on standard scaffolding decks.

A scaffold can be supplemented by a scaffold covering not according to the invention for laying on two vertical frames, in particular for laying on two vertical frames as described above. The scaffold covering comprises an upper side which is designed for walking on the scaffold, a lower side, as well as upper and lower longitudinal edges and upper transverse edges and lower transverse edges. The upper longitudinal edges and the upper transverse edges limit the upper side of the scaffold covering and the lower longitudinal edges and the lower transverse edges limit the underside of the scaffold covering. The distance between the upper transverse edges is greater than the distance between the lower transverse edges.

Such a scaffolding deck is advantageous for use in scaffolding construction. Due to the larger distance between the upper transverse edges, it is possible to install the scaffolding deck in such a way that the scaffolding deck at least partially covers the horizontal scaffolding elements, which are located under the upper transverse edges of the scaffolding deck when installed. In this way, an essentially continuous surface of scaffolding decks can be created, which essentially has no large gaps, slots or steps that could hinder passers-by when walking on the scaffold.

It is possible for the side scaffolding surface that connects the upper transverse edges to the lower transverse edges to be curved. The surface can also be made up of several partial surfaces that are at an angle to one another. Several partial surfaces that are arranged at an angle to one another can thus result in a curved side surface of the scaffolding surface. The upper transverse edges can be more than 2 cm apart than the lower transverse edges. The upper transverse edges can also be more than 4 cm apart than the lower transverse edges.

A scaffold can be supplemented by a scaffold covering not according to the invention, in particular a scaffold covering as described above, for laying on two vertical frames, in particular for laying on two vertical frames as described above. The scaffold covering comprises a surface which is designed for walking on the scaffold. The scaffold covering is roughened by blasting with glass particles and/or with metal particles.

The roughened scaffold decking is non-slip, so that passers-by can walk on the scaffold decking safely and it is unlikely that passers-by will slip and fall onto the scaffold decking when walking on the scaffold decking.

The metal particles can be metal chips. The metal particles can also be essentially spherical.

A scaffold covering as described above can be manufactured by a method not according to the invention for roughening a scaffold covering, wherein the surface of the scaffold covering is irradiated with glass particles and/or metal particles.

The procedure is simple and uncomplicated to carry out.

The metal particles can be metal chips. The metal particles can also be essentially spherical.

The glass particles and/or metal particles can have a size of 0.1 mm to 2 mm, in particular 0.5 mm to 1.5 mm. This size of the glass particles and/or metal particles results in particularly advantageous non-slip properties of the scaffolding covering.

• Ein Kippsicherungsklotz wie oben beschrieben und;
• Ein Geländerholm wie oben beschrieben,

gelöst.The object is further achieved according to claim 6 by a framework comprising

• An anti-tilt block as described above and;
• A railing as described above,

solved.

• Einen nicht erfindungsgemässen Vertikalrahmen wie vorhergehend beschrieben und/oder;
• Einen nicht erfindungsgemässen Gerüstbelag wie vorhergehend beschrieben und/oder;
• Einen nicht erfindungsgemässen Vertikalstiel wie vorhergehend beschrieben und/oder;
• Ein nicht erfindungsgemässes Befestigungselement wie vorhergehend beschrieben.

The framework may also include the following elements:

• A vertical frame not according to the invention as described above and/or;
• A scaffold decking not according to the invention as described above and/or;
• A vertical post not according to the invention as described above and/or;
• A fastening element not according to the invention as described above.

Such a scaffold is easy to install and can be safely accessed by users or passers-by.

Figur 1:

Ein Geländerholm für ein vorlaufendes Geländer umfassend ein erstes und ein zweites Anschlussmittel;

Figur 2:

Ein Anschlussmittel mit einer Öffnung, welche einen zentralen Abschnitt sowie vier Aussparungen aufweist;

Figur 3:

Ein Vertikalrahmen mit Haltezapfen sowie Verriegelungselementen;

Figur 4:

Ein Vertikalstiel mit einer Teil-Lochscheibe sowie einem Haltezapfen mit einem Verriegelungselement sowie einer Zapfennut;

Figur 5:

Ein horizontales Gerüstelement mit einem Keilkopf und einem Keil;

Figur 6:

Ein Keilkopf mit einem Keil;

Figur 7:

Ein Kippsicherungsklotz;

Figur 8:

Eine Draufsicht auf ein Gerüstsegment mit einem Gerüstbelag, Kippsicherungsklötzen, Keilköpfen, einer Teil-Lochscheibe sowie einem Haltezapfen;

Figur 9:

Ein Kippsicherungsklotz an einem Gerüstbelag;

Figur 10:

Ein Gerüstbelag mit Kippsicherungsklötzen;

Figur 11:

Einen Vertikalstiel mit einer Teil-Lochscheibe und einer Montagehilfe mit einer Montagehilfenöffnung;

Figur 12:

Zwei Vertikalstiele und einen Geländerholm;

Figur 13:

Einen Vertikalrahmen mit einer Diagonalstrebe;

Figur 14:

Einen Vertikalstiel, einen Geländerholm sowie einen Vertikalrahmen mit einer Diagonalstrebe;

Figur 15:

Einen Vertikalrahmen mit einer Diagonalstrebe sowie einer Verschiebesicherung einer Querstange;

Figur 16:

Zwei Gerüstbeläge mit jeweils einer oberen Querkante und einer unteren Querkante.

The invention and other components not according to the invention with which a scaffold can be supplemented are explained in more detail in the following figures. Here:

Figure 1:

A railing for a leading railing comprising a first and a second connecting means;

Figure 2:

A connector having an opening which has a central portion and four recesses;

Figure 3:

A vertical frame with retaining pins and locking elements;

Figure 4:

A vertical post with a partial perforated disc and a retaining pin with a locking element and a tenon groove;

Figure 5:

A horizontal scaffolding element with a wedge head and a wedge;

Figure 6:

A wedge head with a wedge;

Figure 7:

An anti-tilt block;

Figure 8:

A top view of a scaffolding segment with a scaffolding deck, anti-tilt blocks, wedge heads, a partial perforated disc and a retaining pin;

Figure 9:

An anti-tilt block on a scaffolding deck;

Figure 10:

A scaffolding deck with anti-tilt blocks;

Figure 11:

A vertical post with a partial perforated disc and an assembly aid with an assembly aid opening;

Figure 12:

Two vertical posts and a railing bar;

Figure 13:

A vertical frame with a diagonal brace;

Figure 14:

A vertical post, a railing bar and a vertical frame with a diagonal brace;

Figure 15:

A vertical frame with a diagonal brace and a crossbar to prevent displacement;

Figure 16:

Two scaffolding boards, each with an upper transverse edge and a lower transverse edge.

Figure 1 shows a railing post 1 for a leading railing. The railing post 1 comprises a first connection means 2 and a second connection means 3. The first connection means 2 and the second connection means 3 each have openings 7. In addition, the railing post 1 has a first section 5 and a second section 6. Furthermore, a projection 10 is formed on the railing post 1. The first connection means 2 and the second connection means 3 are flat in relation to the tube. The railing post 1 is essentially tubular. The openings 7 comprise a central section 8 and recesses 9. The central section 8 is circular. The recesses 9 are arranged in a cross shape starting from the central section 8 of the opening 7. In this example, the projection 10 is essentially cuboid-shaped with two half circular cylinders attached to the opposite sides of the cuboid.

Figure 2 shows a first connection means 2 of a railing beam 1. The first connection means 2 of the railing beam 1 comprises an opening 7. The opening 7 comprises a central section 8 and recesses 9. The central section 8 is circular. The recesses 9 are essentially rectangular, with a semicircle formed on each side of the rectangle. The recesses 9 are formed radially from the central section 8. The recesses 9 are cross-shaped, with the two opposite recesses 9 each having an identical longitudinal axis. The longitudinal axes of all recesses 9 thus intersect at one point, which is also the center of the central section 8 of the opening 7 of the first connection means 2. The opening 7 with the central section 8 and the recesses 9 is thus point-symmetrical.

Figure 3 shows a vertical frame 39 of a scaffold with holding pins 11 and locking elements 12. The vertical post 4 has two holding pins 11 and two locking elements 12. The locking elements 12 are arranged in the locking position in this position. The vertical frame 39 has a crossbar with a displacement lock 30. The vertical frame 39 also has two diagonal struts 31. The vertical frame 39 has an upper section 37 which lies above the crossbar. In addition, the vertical frame 39 has a lower section 38 below the crossbar. Figure 4 shows a vertical post 4 of a scaffold with a partial perforated disk 16 and a holding pin 11. The holding pin 11 has a locking element 12 and a pin groove 13. The plane of the partial perforated disk 16 is arranged such that the longitudinal axis of the vertical post 4 intersects the plane of the partial perforated disk 16 essentially perpendicularly. The vertical post 4 is designed as an essentially cylindrical hollow tube. The locking element 12 of the holding pin 11 is in the locking position. The pin groove 13 is designed such that it is arranged perpendicular to the longitudinal axis of the holding pin 11.

Figure 5 shows a substantially horizontal scaffolding element 27 with a wedge head 14. The wedge head 14 has an upper head part 17 and a lower head part 18. A slot 19 is formed between the upper head part 17 and the lower head part 18. A wedge 15 is also shown. The wedge 15 is inserted into the upper head part 17 and the lower head part 18. The wedge head 14 is substantially flush with the surface of the horizontal scaffolding element 27. In this example, the wedge 15 protrudes with its head side by 5 mm from the wedge head 14. The substantially horizontal scaffolding element 27 is tubular.

Figure 6 shows a wedge head 14 with a wedge 15. The wedge head 14 has an upper head part 17 and a lower head part 18. A slot 19 is formed between the upper head part 17 and the lower head part 18. The wedge 15 is located in the opening of the upper head part 17 and in the opening of the lower head part 18. In this example, the head part of the wedge 15 protrudes 5 mm from the wedge head 14.

Figure 7 shows an anti-tilt block 21 with a first stop surface 22 for a scaffold deck 20, a stop surface 23 for a first console element, a stop surface 24 for a second console element and a stop surface 25 for a scaffold tube. The anti-tilt block 21 also has a block groove 26. The stop surface 24 for the second console element and the stop surface 25 for the scaffold tube are each curved. The longitudinal axis of the block groove 26 runs parallel to the first stop surface 22. The longitudinal axis of the block groove 26 runs essentially parallel to the first stop surface 22 at a distance of 15.5 mm.

Figure 8 shows a top view of a scaffolding segment with a scaffolding plan 20, anti-tilt blocks 21, a retaining pin 11, a locking element 12, a tenon groove 13, a wedge head 14, a wedge 15 and a partial perforated disk 16. The anti-tilt blocks 21 each support the scaffolding plan 20 against tipping. The anti-tilt blocks 21 are arranged between the plan 20 and the wedge heads 14. The top view shows the first stop surfaces 22 of the anti-tilt blocks 21. The wedge heads 14 are inserted into essentially horizontal scaffolding elements 27. The locking element 12 is in the locking position.

Figure 9 shows an anti-tilt block 21 on a scaffolding deck 20. The anti-tilt block 21 has a stop surface 23 for a first console element and a stop surface 24 for a second console element and a stop surface 25 for a scaffolding tube. The stop surface 25 for a scaffolding tube is curved. The anti-tilt block 21 is inserted into a profile of the scaffolding deck 20 with the block groove (not shown) and the first stop surface (not shown). The scaffolding deck 20 has an upper side 32 and a lower side 33. The upper side 32 has an upper transverse edge 34. The lower side 33 has a lower transverse edge 35. The upper transverse edge 34 of the upper side 32 and the lower transverse edge 35 of the lower side 33 are connected by an arcuate surface 36.

Figure 10 shows a scaffolding deck 20 with anti-tilt blocks 21. The anti-tilt blocks 21 have a stop surface 23 for a first console element and a stop surface 24 for a second console element and a stop surface 25 for a scaffolding tube. In this example, at least three anti-tilt blocks 21 are arranged on the deck 20. The anti-tilt blocks 21 are advantageously arranged as close as possible to the corners of the deck 20. The scaffolding deck 20 has an upper side 32 and a lower side 33. The upper side 32 is delimited by an upper transverse edge 34. The lower side (not shown) is delimited by a lower transverse edge 35. The upper transverse edge 34 of the upper side 32 and the lower transverse edge 35 of the lower side (not shown) are connected by an arcuate side surface 36.

Figure 11 shows a vertical post 4 with a partial perforated disc 16 and an assembly aid 28 with an assembly aid opening. The vertical post 4 is designed as a hollow tube. The partial perforated disc 16 and the assembly aid 28 are each from the hollow tube arranged radially. The partial perforated disc 16 and the assembly aid 28 each describe a plane which perpendicularly intersects the longitudinal axis of the hollow tube of the vertical post 4.

Figure 12 shows two vertical posts 4 and a railing 1. A vertical post 4 has a retaining pin 11. The retaining pin 11 has a longitudinal axis that is arranged perpendicular to the longitudinal axis of the vertical posts 4. The retaining pin 11 comprises a pin groove 13 and a locking element 12. The locking element 12 is arranged in the locking position. The pin groove 13 is arranged perpendicular to the longitudinal axis of the retaining pin 11. The second connection means 3 of the railing 1 is secured by the locking element 12 of the retaining pin 11. The connection means of the railing 1 is also locked into the pin groove 13. The railing 1 has a radially protruding projection 10. The projection 10 has the shape of a circular cylinder. The longitudinal axis of the projection 10 runs perpendicular to the longitudinal axis of the retaining pin 11 and perpendicular to the pin groove 13. An assembly aid 28 with an assembly aid opening of a further vertical post 4 is placed on the projection 10. The longitudinal axes of the two vertical posts 4 run parallel.

Figure 13 shows a vertical frame 39 with a vertical post 4, a diagonal strut 31 and a partial perforated disc 16 as well as a crossbar. The diagonal strut 31 has a diagonal strut opening 29. The longitudinal axis of the vertical post 4 is arranged perpendicular to the longitudinal axis of the crossbar. The longitudinal axis of the vertical post 4 also runs perpendicular to the plane of the partial perforated disc 16. The longitudinal axis of the crossbar lies on the plane of the partial perforated disc 16.

Figure 14 shows a vertical post 4, a railing beam 1 and a vertical frame 39 with a diagonal strut 31. The vertical post 4 has a retaining pin 11. The retaining pin 11 has a longitudinal axis that is arranged perpendicular to the longitudinal axis of the vertical post 4. The retaining pin 11 comprises a tenon groove 13 and a locking element 12. The locking element 12 is arranged in the locking position. The tenon groove 13 is arranged perpendicular to the longitudinal axis of the retaining pin. The second connection means 3 of the railing beam 1 is secured by the locking element 12 of the retaining pin 11. The second connection means 3 of the railing beam 1 is also locked into the tenon groove 13. The railing beam 1 has a radially protruding projection 10. The projection 10 has the shape of a circular cylinder. The longitudinal axis of the projection 10 runs perpendicular to the longitudinal axis of the retaining pin 11 and perpendicular to the pin groove 13. The diagonal strut 31 of the vertical frame 39 is placed on the projection 10 so that the projection 10 is located in the diagonal strut opening 29.

Figure 15 shows a vertical frame 39 with a vertical post 4, a partial perforated disc 16, a crossbar with an anti-displacement device 30 and a diagonal strut 31. The anti-displacement device 30 is arranged on the upper side of the crossbar.

Figure 16 shows two scaffolding decks 20, each with a top side 32, a bottom side 33, an upper transverse edge 34, a lower transverse edge 35 and an arcuate side surface 36. The scaffolding decks 20 each rest on horizontal scaffolding elements 27. The two arcuate side surfaces 36 of the scaffolding decks face each other. The two upper transverse edges 34 of the scaffolding decks 20 are arranged above a horizontal scaffolding element.

Claims (6)

1. Guard rail (1) for an advancing guard rail, comprising at least a first and a second connecting means (2, 3) for respective attachment to a connecting element of a vertical upright (4) and a central spar, the central spar being designed in particular as a hollow tube and having a longitudinal axis, wherein the guard rail (1) comprises a first and a second section (5, 6), wherein the first section (5) comprises the first connecting means (2) and the second section (6) comprises the second connecting means (3), wherein the connecting means (2, 3) are flat in relation to the central spar, wherein the first and/or second connecting means (2, 3) comprises an opening (7) which has a central section (8) and recesses (9) which are arranged radially starting from the center of the central section (8), characterized in in that four recesses (9) are provided per opening (7), the four recesses (9) having longitudinal axes which extend in the direction of the longitudinal extension of the recesses (9) and the longitudinal axes of the four recesses (9) describing a cross in the central section (8) of the opening (7) .
2. Guard rail (1) according to claim 1, characterized in that the recesses (9) each have a longitudinal extension and a width extension and the longitudinal extension is in each case greater than the width extension and, in particular, the longitudinal extension extends in the radial direction starting from the center of the central section (8) of the opening (7).
3. Guard rail (1) according to one of the preceding claims, characterized in that the longitudinal axes of the recesses (9) are arranged at an angle between 40° and 50°, preferably substantially 45°, and/or at an angle between 130° and 140°, preferably substantially 135°, with respect to the longitudinal axis of the central spar.
4. Guard rail (1) according to one of the preceding claims, characterized in that the surface of the central spar has one, in particular two, radially outwardly projecting projections (10).
5. Process for assembling a scaffolding comprising the steps of:

   A assembling a first scaffolding section on a first level, the first scaffolding section comprising a first and a second vertical frame (39);

   B attaching a third vertical frame (39) to the second vertical frame (39), wherein the third vertical frame (39) is placed on the second vertical frame (39);

   C attaching a guard rail (1) according to one of claims 1 - 4 to the third vertical frame (39), wherein the guard rail (1) is pushed with the first connecting means (2) over the retaining pin (11) of the third vertical frame (39);

   D in particular fastening the guard rail (1) to a fourth vertical frame (39);

   E in particular attaching the fourth vertical frame (39) to the first vertical frame (39), the fourth vertical frame (39) being lifted and placed on the first vertical frame (39) .
6. Scaffolding comprising

   - a guard rail (1) according to one of claims 1 to 4 and

   - an anti-tilt block (21) for securing a scaffold planking (20) against tilting, comprising a first stop surface (22) for a scaffold planking (20), a second stop surface for a scaffold planking, a stop surface (23) for a first bracket element, a stop surface (24) for a second bracket element, a stop surface (25) for a scaffold tube, a stop surface for a perforated partial disk (16) and a groove (26), which has a longitudinal axis, wherein the stop surface (25) for the scaffold tube and the stop surface (23) for the first bracket element are each curved, the groove (26) extends in the second stop surface for the scaffold planking (20) and the longitudinal axis of the groove (26) extends essentially parallel to the first stop surface (22) for the scaffold planking.

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