EP3489435B1 - Fastening element, frame, method for producing a frame - Google Patents

Fastening element, frame, method for producing a frame Download PDF

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Publication number
EP3489435B1
EP3489435B1 EP17203725.1A EP17203725A EP3489435B1 EP 3489435 B1 EP3489435 B1 EP 3489435B1 EP 17203725 A EP17203725 A EP 17203725A EP 3489435 B1 EP3489435 B1 EP 3489435B1
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EP
European Patent Office
Prior art keywords
wedge
fastening
securing
slot
fastening element
Prior art date
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Application number
EP17203725.1A
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German (de)
French (fr)
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EP3489435A1 (en
Inventor
Hasim Tamer
Timo Kuster
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Tobler AG
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Tobler AG
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Publication date
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Priority to EP17203725.1A priority Critical patent/EP3489435B1/en
Priority to RS20210102A priority patent/RS61422B1/en
Publication of EP3489435A1 publication Critical patent/EP3489435A1/en
Application granted granted Critical
Publication of EP3489435B1 publication Critical patent/EP3489435B1/en
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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
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or 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
    • E04G7/32—Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using wedges

Definitions

  • the invention relates to a fastening element, a frame and a method for producing a frame according to the preamble of the independent claims.
  • fastener which has a wedge support body. This has a wedge support surface for vertically supporting the lower end of the wedge against inadvertent movement of the wedge vertically downwards. This enables the fastening element to be slipped radially onto the perforated disk in an essentially horizontal direction without the risk of being blocked by the wedge.
  • the disadvantage of the aforementioned fastening element is that the wedge can inadvertently detach itself from the wedge support surface during fastening despite the wedge support surface and then prevents the fastening element from being attached.
  • a fastening element, a framework and a method for producing a framework with the features of the preambles of claims 1, 9 and 12 is by the EP 0 376 430 A1 known.
  • the object of the present invention is to create a fastening element which avoids the disadvantages of the prior art and to create a framework and a method for producing a framework in which the wedge cannot prematurely fall into the slot of the fastening element.
  • the invention achieves this object with a fastening element according to claim 1, a framework according to claim 9 and a method according to claim 12.
  • the fastening element for connecting a cross bar to a vertical post of a scaffolding comprises a wedge head and a wedge.
  • a wedge locking element is formed in the wedge head.
  • the wedge can be plugged into the wedge head through an opening so that the fastening element can be positively connected to the perforated disk of the vertical post through the wedge.
  • the wedge locking element can be switched from a locking position to a fastening position. The wedge can only be inserted into the opening in the fastening position in such a way that a form fit is created between the fastening element and the perforated disk during use.
  • the wedge securing element must first be switched from the securing position to the fastening position and only then can the fastening element be positively connected to the perforated disc by the wedge.
  • the securing element thus prevents the wedge from leaving the securing position prematurely.
  • This allows the crossbar to be brought into the ideal position, i.e. H. can be aligned without paying attention to the wedge.
  • a premature assumption of the fastening position by the wedge is reliably prevented by the wedge securing element. This facilitates the construction of a scaffolding and in particular enables simple and efficient fastening of the crossbar to the vertical post.
  • the opening of the wedge head is blocked by the wedge securing element in such a way that the wedge cannot be pushed through the opening.
  • the wedge locking element In the fastening position, the wedge locking element is switched over in such a way that the opening becomes free. Switching is done by moving a sub-element.
  • the wedge head and the wedge locking element are designed such that the wedge can be fixed in a holding position in the locking position.
  • the wedge head, the wedge and the wedge locking element are designed such that the wedge head falls when the wedge locking element is moved from the holding position into a closed position.
  • the cross bar can be brought up to the vertical post from a distance and, when the destination is reached, ie. H. After aligning the crossbar, the locking is automatically done by the wedge, since it falls from the holding position under the influence of gravity into a fastening position. This facilitates the construction of the scaffolding and, in particular, the creation of connections in difficult-to-reach places.
  • the wedge is captively connected to the head part.
  • the wedge head has an upper head part and a lower head part, each with an opening.
  • a slot is formed between the upper head part and the lower head part.
  • the wedge locking element locks in the securing position the path between the two openings at least partially.
  • the wedge lies in the opening of the upper head part in the securing position, the opening of the lower head part being made inaccessible to the wedge by the wedge securing element. This enables carefree movement of the crossbar on which the fastening element is arranged.
  • the securing element in this embodiment can be attached between the upper and lower head part in the slot.
  • the wedge locking element can thus be designed as a retrofittable element.
  • Existing cross bars / fastening elements can be retrofitted with a wedge locking element.
  • the slot can assume any shape, including a semicircular recess, a square recess, or a similar design.
  • the slot is designed as a narrowing slot, in particular conical.
  • the wedge locking element is designed as a sliding bolt.
  • the slide bolt runs in the slot of the fastening element.
  • the sliding bolt can be moved essentially parallel to the slot.
  • the sliding latch protrudes into the slot in the secured position.
  • the sliding latch is pushed back completely out of the slot in the fastening position.
  • the wedge securing element can thus be easily moved from the securing position into the fastening position.
  • the design of the wedge locking element as a sliding bolt enables the wedge locking element to be easily switched over by the perforated disc inserted into the slot during use. If the wedge locking element is designed as a sliding bolt which protrudes into the slot in the locking position, the sliding bolt is pushed back from the perforated disk when it is connected to the perforated disk. In this way, the wedge securing element can be switched over from the securing position to the fastening position in the simplest manner without active switching by a user.
  • the wedge locking element with the exception of the sliding bolt, which protrudes into the slot in the locking position and is pushed out of the slot in the fastening position, can be accommodated outside the slot, in particular in the crossbar, which advantageously runs parallel to the slot .
  • the wedge locking element can thus be arranged in a space-saving manner and protected from environmental conditions.
  • the wedge head can retain its usual shape. The wedge heads used up to now can easily be retrofitted with the function of a wedge locking element without major redesign.
  • a sliding bolt is a bolt that can be moved in relation to the wedge head.
  • the sliding bolt is designed such that it is so far into the secured position Slot protrudes so that it covers the entire length of the opening of the wedge head.
  • the sliding bolt is designed such that it is pushed back completely out of the slot in the fastening position, since the wedge can then be moved from the secured position into the fastening position without resistance and without impairing its movement.
  • a surface of the sliding bolt has a surface running at an angle and / or a groove.
  • the surface of the sliding bolt that runs at an angle can stabilize and / or hold the wedge in its secured position.
  • the wedge end which touches the sliding bolt in the locking position can be provided with a complementary surface that also runs at an angle.
  • a groove also allows the wedge to be stabilized, in particular if the end of the wedge head is matched to the shape and position of the groove.
  • the wedge locking element is carried out completely in the slot of the wedge head.
  • the wedge head accordingly does not have a through hole through which parts of the wedge securing element extend from the front of the wedge head to the rear of the wedge head.
  • the wedge securing element extends into the slot in its securing position so that it prevents movement of the wedge from the securing position to the fastening position.
  • the wedge locking element In the fastening position of the wedge locking element, the wedge locking element is still completely in the gap.
  • the wedge securing element is now arranged in the gap such that the wedge can be displaced from the securing position into the fastening position.
  • the wedge locking element does not have to be inserted into the wedge head but can simply be placed on it. Retrofitting the wedge head is possible with minimal effort.
  • the wedge locking element is designed as a compressible element in the slot. In its locking position, the wedge locking element is expanded and at least partially blocks the slot. In its fastening position, the wedge securing element is compressed in such a way that the wedge can be moved from the securing position into the fastening position.
  • the wedge securing element is designed as a rigid plate, which comprises springs on the rear.
  • the springs have a connecting device for connection to the Wedge head up.
  • the devices further include a spring protection, for example a bellows, which protects the springs from dirt and at the same time forms a support surface for the wedge.
  • the upper and / or the lower head part is shaped in such a way that a narrowing slot results.
  • the fastening element can thus be easily brought up to the perforated disc of the vertical post and the perforated disc can be centered in the middle of the gap.
  • the perforated disc can be inserted into the wide slot area without precise aiming and then easily centered by simply pushing it vertically. This makes it easier to attach the crossbar to the perforated disc and also enables it to be attached from a distance.
  • the wedge locking element is detachably connected to the fastening element.
  • the wedge locking element is detachably connected to the fastening element by a click connection.
  • the wedge locking element can be designed as an independent unit.
  • the wedge locking element can be attached to the fastening unit as required.
  • a detachable connection between the wedge locking element and the fastening element allows the wedge locking element to be replaced easily, for example in the event of a defect in the wedge locking element.
  • the fastening element comprises a restoring element.
  • the reset element is in a preferred embodiment mounted in the wedge locking element.
  • the restoring element is a spring which counteracts the movement of the wedge securing element from the securing position to the fastening position.
  • the wedge securing element experiences resistance when switching from the securing position to the fastening position. This resistance makes it difficult to switch from one position to the other. In particular, unwanted switching when the cross bar is brought up to the vertical post is prevented and the fastening unit can thus be easily installed.
  • the wedge securing element further comprises a latching device which, when moving the wedge securing element from the securing position to the fastening position, engages the wedge securing element in the fastening position when the fastening position is reached.
  • the latching device is designed such that it can be released manually. So the latching device after the release of the connection between the fastening element and the perforated disc can be deactivated. The fastening unit can then be used again.
  • the wedge locking element has a contact surface for contact with a vertical post.
  • the surface preferably has at least one groove.
  • the groove allows the excess zinc to flow off through the groove when the surface is galvanized.
  • Such a contact surface allows the fastening element to be attached flush to the vertical post. This is particularly important for creating a form fit, in particular for the wedge to fall independently due to gravity from the securing position through the openings in the wedge head into the fastening position in which the wedge forms a form fit with the perforated disk. Because if the surface of the fastening element is uneven, the element may not be able to be brought up to the perforated disk in such a way that the wedge can be moved from the securing position into the fastening position.
  • the wedge head has an opening for receiving connecting elements for connecting the wedge locking element to the wedge head.
  • the wedge head can also have the connecting elements, with the opening being provided accordingly in the wedge locking element.
  • a frame comprising at least one vertical post with a perforated disk, a cross bar, also leads to the solution of the object with a fastening element as described above.
  • the framework is designed in such a way that a wedge head of the fastening element, in particular a slot of the fastening element, and the perforated disk are matched to one another in their shape in such a way that the perforated disk can be guided into the slot.
  • the wedge locking element is designed in such a way that it switches from the locking position to the fastening position when the perforated disk is inserted into the slot.
  • connection of the vertical post to the transverse rod can be established in a particularly error-free manner.
  • the wedge locking element ensures that the wedge does not fall into the opening of the wedge head too early.
  • a scaffold consisting of several cross bars and vertical posts is particularly easy to assemble.
  • the holes of the perforated disc and the wedge are matched to one another in such a way that after the wedge locking element has been switched over, the wedge falls automatically into the hole of the perforated disc by gravity. The wedge thus falls into a form fit by itself.
  • connection between the vertical post and the crossbar can be made so easily without a person having to move the wedge from the securing position into the fastening position.
  • a method for producing a framework also leads to the solution of the problem.
  • a cross bar is used connected with a fastening element as described above and below with a vertical stem.
  • the perforated disc of the vertical post is designed with an elongated hole extending around the disc.
  • the wedge can simply fall from the securing position into the fastening position without alignment on the perforated disk as soon as the wedge securing element has been switched.
  • the perforated disc of the vertical post is designed with two semicircular elongated holes. This enables the perforated disc to be stronger without the need for any substantial alignment of the fastening element on the perforated disc. This saves time and therefore costs.
  • Figure 1 shows a vertical post 3 which comprises a perforated disk 9.
  • a crossbar 2 with a fastening element 1 is also shown.
  • the cross bar 2 can be connected to a perforated disk 9 of the vertical post 3 and thus to the vertical post 3 by the fastening element 1.
  • the fastening element 1 has a wedge head 5 which has a slot 12, a wedge 6 and a wedge securing element which is designed in the form of a sliding bolt 13 in the slot 12.
  • the wedge head 5 of the fastening element 1 is brought up to the perforated disk 9 to produce the connection.
  • the fastening element 1 is close enough to the perforated disk 9, as the cross bar 2 moves further towards the vertical post 3, the perforated disk 9 pushes the slide latch 13 horizontally into the cross bar 2 back.
  • the wedge 6 falls into a hole in the perforated disk 9 due to gravity.
  • the cross rod 2 is thus connected to the vertical post 3 in a form-fitting manner.
  • Figure 2 shows wedge head 5 consisting of an upper head part 10 and a lower head part 11.
  • the slot 12 is formed between the two head parts 10, 11.
  • the upper and lower head parts 10, 11 each have an opening 8 (see FIG Figure 5 regarding the opening of the upper head part).
  • the sliding bolt 13 is in a securing position in which it is extended and the slot 12 protrudes.
  • the sliding bolt 13 has a groove 19.
  • Wedge 6 is inserted through the opening of the upper head part 10, to which it is captively attached. The wedge 6 rests on the sliding bolt 13 and is prevented by this from penetrating the slot 12 and the opening 8 of the lower head part 11.
  • the wedge head 5 has a contact surface 17 on the upper head part 10 and on the lower head part 11. These contact surfaces 17 are designed perpendicular to the sliding bolt 13.
  • the contact surfaces 17 each have two grooves 18 which serve to drain the zinc during the manufacture of the wedge head, so that flat contact surfaces are created without further work steps being necessary.
  • the wedge 6 is at an acute angle to the sliding bolt 13 in a stable securing position on the sliding bolt 13.
  • Figure 3 shows the wedge head 5 from a side perspective.
  • the slide bolt 13 of the wedge locking element 7 is in a retracted position, which corresponds to a fastening position.
  • the wedge 6 is therefore in contrast to Figure 2 not in the secured position, but in a fastening position.
  • the wedge 6 In the fastening position, the wedge 6 is introduced both in the opening in the upper head part and in the opening in the lower head part 11. In this position, the wedge 6 penetrates the slot 12.
  • the wedge 6 is designed such that, after the penetration of the slot 12 and the opening of the lower head part 11, it is too thick for further falling through. The wedge 6 is therefore in a stable fastening position.
  • Figure 4 shows the contact surface 17 of the wedge head 5 again.
  • the grooves 18 can be seen in the contact surface 17. It can also be seen that the contact surface is slightly curved. The curvature corresponds to the radius of the vertical post 3 with which the wedge head 5 is to be connected.
  • Figure 5 shows the wedge head 5 from above.
  • the wedge 6 can be seen in this perspective.
  • Wedge 6 is shown in the fastening position in this figure.
  • the sliding bolt 13 is not visible in this figure, since the sliding bolt in its fastening position, ie is retracted in the wedge locking element 7. In this perspective, only the upper head part 10 can be seen.
  • Figure 6 shows the wedge head 5 from the front.
  • the wedge 6 is in the fastening position.
  • the sliding bolt 13 is - in order to make this wedge position possible at all - also in its fastening position, ie retracted into the wedge locking element.
  • Figure 7 shows the wedge head 5 from behind. It can be seen how the wedge securing element 7 is attached to the wedge head 5 by click connections 14. Such a click connection 14 is a detachable connection so that the wedge locking element can be removed from the wedge head 5 at any time.
  • Figure 8 4 shows an exploded view of the wedge locking element 7. It consists of a housing which includes the click connection elements 14. The housing further comprises a cover which can also be connected to the other part of the housing by means of click connection elements. There is space for the sliding bolt 13 in the housing. The sliding bolt 13 is connected to a restoring element 15. The restoring element 15 is designed as a spring in this exemplary embodiment. If the wedge locking element 7 is assembled, the spring 15 pushes the sliding bolt 13 out of the wedge locking element, whereby the sliding bolt is forced into the locking position.
  • the slide bolt 13 contacts the perforated disk 9.
  • the slide bolt 13 becomes the crossbar 2 when the crossbar 2 is moved further on the vertical post 3 against the spring force of the spring 15 pushed into the wedge locking element 7. If the sliding bolt 13 reaches a certain position, for example a position completely retracted into the housing, the sliding bolt 13 can snap into the wedge locking element 7 and thus be fixed in the position reached.

Description

Die Erfindung betrifft ein Befestigungselement, ein Gerüst, sowie ein Verfahren zur Herstellung eines Gerüstes gemäss dem Oberbegriff der unabhängigen Ansprüche.The invention relates to a fastening element, a frame and a method for producing a frame according to the preamble of the independent claims.

Es ist bei Befestigungselementen, welche einen Keil aufweisen im Gerüstbau bekannt, dass beim Anbringen des Befestigungselements der Keil oft ungewollt und zu früh in eine Sicherungsposition fällt, aus welcher der Keil mühsam wieder entfernt werden muss. Aus der DE 10 2012 104 694 A1 ist ein Befestigungselement bekannt, welches einen Keil-Stütz-Körper aufweist. Dieser weist eine Keil-Stützfläche zum vertikalen Abstützen des unteren Keilendes gegen ein unbeabsichtigtes Bewegen des Keils vertikal nach unten auf. Damit wird das Aufstecken des Befestigungselements in einer im Wesentlichen horizontalen Richtung radial auf die Lochscheibe ermöglicht, ohne dabei eine Blockade durch den Keil zu riskieren.In the case of fastening elements which have a wedge in scaffolding, it is known that when the fastening element is attached, the wedge often falls unintentionally and too early into a securing position from which the wedge must be laboriously removed. From the DE 10 2012 104 694 A1 a fastener is known which has a wedge support body. This has a wedge support surface for vertically supporting the lower end of the wedge against inadvertent movement of the wedge vertically downwards. This enables the fastening element to be slipped radially onto the perforated disk in an essentially horizontal direction without the risk of being blocked by the wedge.

Bei dem genannten Befestigungselement ist nachteilig, dass der Keil trotz der Keil-Stützfläche bei der Befestigung sich aus der Keil- Stützfläche ungewollt lösen kann und anschliessend das Aufstecken des Befestigungselements verhindert.The disadvantage of the aforementioned fastening element is that the wedge can inadvertently detach itself from the wedge support surface during fastening despite the wedge support surface and then prevents the fastening element from being attached.

Ein Befestigungselement, ein Gerüst und ein Verfahren zur Herstellung eines Gerüstes mit den Merkmalen der Oberbegriffe der Ansprüche 1, 9 und 12 ist durch die EP 0 376 430 A1 bekannt.A fastening element, a framework and a method for producing a framework with the features of the preambles of claims 1, 9 and 12 is by the EP 0 376 430 A1 known.

Die Aufgabe der vorliegenden Erfindung ist es ein Befestigungselement zu schaffen, welches die Nachteile des Standes der Technik vermeidet und ein Gerüst und ein Verfahren zur Herstellung eines Gerüstes zu schaffen, bei welchen der Keil nicht vorzeitig in den Schlitz des Befestigungselementes fallen kann.The object of the present invention is to create a fastening element which avoids the disadvantages of the prior art and to create a framework and a method for producing a framework in which the wedge cannot prematurely fall into the slot of the fastening element.

Die Erfindung löst diese Aufgabe mit einem Befestigungselement gemäß Anspruch 1, einem Gerüst gemäß Anspruch 9 und einem Verfahren gemäß Anspruch 12.The invention achieves this object with a fastening element according to claim 1, a framework according to claim 9 and a method according to claim 12.

Erfindungsgemäss umfasst das Befestigungselement zur Verbindung einer Querstange mit einem Vertikalstiel eines Gerüstes einen Keilkopf und einen Keil. Im Keilkopf ist ein Keilsicherungselement ausgebildet. Der Keil ist durch eine Öffnung in den Keilkopf steckbar, so dass das Befestigungselement mit der Lochscheibe des Vertikalstiels durch den Keil formschlüssig verbindbar ist. Das Keilsicherungselement ist von einer Sicherungsposition in eine Befestigungsposition umstellbar. Der Keil ist ausschliesslich in der Befestigungsposition so in die Öffnung steckbar, dass im Gebrauch ein Formschluss zwischen Befestigungselement und der Lochscheibe entsteht.According to the invention, the fastening element for connecting a cross bar to a vertical post of a scaffolding comprises a wedge head and a wedge. A wedge locking element is formed in the wedge head. The wedge can be plugged into the wedge head through an opening so that the fastening element can be positively connected to the perforated disk of the vertical post through the wedge. The wedge locking element can be switched from a locking position to a fastening position. The wedge can only be inserted into the opening in the fastening position in such a way that a form fit is created between the fastening element and the perforated disk during use.

Vorteilhaft erweist sich, dass dadurch zuerst das Keilsicherungselement von der Sicherungsposition in die Befestigungsposition umgestellt werden muss und erst anschliessend das Befestigungselement durch den Keil formschlüssig mit der Lochscheibe verbunden werden kann. Das Sicherungselement verhindert also einen vorzeitiges verlassen der Sicherungsposition durch den Keil. Dadurch kann die Querstange in die ideale Position gebracht werden, d. h. ausgerichtet werden ohne, dass dabei auf den Keil geachtet werden muss. Ein vorzeitiges Einnehmen der Befestigungsposition durch den Keil wird durch das Keilsicherungselement zuverlässig verhindert. Dies erleichtert den Aufbau eines Gerüstes und ermöglicht insbesondere ein einfaches und effizientes befestigen der Querstange am Vertikalstiel.It has proven to be advantageous that the wedge securing element must first be switched from the securing position to the fastening position and only then can the fastening element be positively connected to the perforated disc by the wedge. The securing element thus prevents the wedge from leaving the securing position prematurely. This allows the crossbar to be brought into the ideal position, i.e. H. can be aligned without paying attention to the wedge. A premature assumption of the fastening position by the wedge is reliably prevented by the wedge securing element. This facilitates the construction of a scaffolding and in particular enables simple and efficient fastening of the crossbar to the vertical post.

In der Sicherungsposition ist die Öffnung des Keilkopfs durch das Keilsicherungselement derart versperrt, dass der Keil nicht durch die Öffnung schiebbar ist.In the secured position, the opening of the wedge head is blocked by the wedge securing element in such a way that the wedge cannot be pushed through the opening.

In der Befestigungsposition wird das Keilsicherungselement derart umgeschaltet, dass die Öffnung frei wird. Das Umschalten wird durch Verschiebung eines Teilelements bewerkstelligt.In the fastening position, the wedge locking element is switched over in such a way that the opening becomes free. Switching is done by moving a sub-element.

In einer bevorzugten Ausführungsform sind der Keilkopf und das Keilsicherungselement derart ausgebildet, dass in der Sicherungsposition der Keil in einer Halteposition fixierbar ist. Der Keilkopf, der Keil und das Keilsicherungselement sind derart ausgebildet, dass der Keilkopf beim Umstellen des Keilsicherungselements von der Halteposition in eine Verschlussposition fällt.In a preferred embodiment, the wedge head and the wedge locking element are designed such that the wedge can be fixed in a holding position in the locking position. The wedge head, the wedge and the wedge locking element are designed such that the wedge head falls when the wedge locking element is moved from the holding position into a closed position.

Vorteilhaft erweist sich, dass so die Querstange aus Distanz an den Vertikalstiel herangeführt werden kann und beim Erreichen des Bestimmungsorts, d. h. nach dem Ausrichten der Querstange die Verriegelung durch den Keil automatisch passiert, da dieser aus der Halteposition unter Einfluss der Schwerkraft in eine Befestigungsposition fällt. Dies erleichtert den Aufbau des Gerüsts und insbesondere das Erstellen von Verbindungen an schwierig erreichbaren Stellen.It has proven to be advantageous that in this way the cross bar can be brought up to the vertical post from a distance and, when the destination is reached, ie. H. After aligning the crossbar, the locking is automatically done by the wedge, since it falls from the holding position under the influence of gravity into a fastening position. This facilitates the construction of the scaffolding and, in particular, the creation of connections in difficult-to-reach places.

In einer bevorzugten Ausführungsform ist der Keil unverlierbar mit dem Kopfteil verbunden.In a preferred embodiment, the wedge is captively connected to the head part.

Vorteilhaft erweist sich, dass so der Keil nicht verloren gehen kann. Dies erleichtert die Handhabung des Befestigungselements, da dieses ohne Bedenken bewegt und so einfach an den Bestimmungsort geführt werden kann.It turns out to be advantageous that the wedge cannot be lost in this way. This facilitates the handling of the fastening element, since it can be moved without hesitation and thus easily guided to the destination.

Erfindungsgemäß weist der Keilkopf einen oberen Kopfteil und einen unteren Kopfteil mit je einer Öffnung auf. Zwischen dem oberen Kopfteil und dem unteren Kopfteil ist einen Schlitz ausgebildet. Das Keilsicherungselement versperrt in der Sicherungsposition den Weg zwischen den beiden Öffnungen zumindest teilweise.According to the invention, the wedge head has an upper head part and a lower head part, each with an opening. A slot is formed between the upper head part and the lower head part. The wedge locking element locks in the securing position the path between the two openings at least partially.

Vorteilhaft erweist sich, dass der Keil in dieser Ausführungsform in der Sicherungsposition in der Öffnung des oberen Kopfteils liegt, wobei die Öffnung des unteren Kopfteils für den Keil durch das Keilsicherungselement unzugänglich gemacht ist. Dies ermöglicht ein sorgloses Bewegen der Querstange, an welche das Befestigungselement angeordnet ist.It has proven advantageous that in this embodiment the wedge lies in the opening of the upper head part in the securing position, the opening of the lower head part being made inaccessible to the wedge by the wedge securing element. This enables carefree movement of the crossbar on which the fastening element is arranged.

Es erweist sich weiter als vorteilhaft, dass das Sicherungselement in dieser Ausführungsform zwischen dem oberen und unteren Kopfteil im Schlitz angebracht werden kann. Dies erlaubt es, das Sicherungselement als separates Bauteil auszuführen, welches bei einem ersten Umschalten in den Schlitz und bei einem weiteren Umschalten aus dem Schlitz bewegt wird. Das Keilsicherungselement kann so als nachrüstbares Element ausgeführt sein. Bereits existierende Querstangen/Befestigungselemente können so durch ein Keilsicherungselement nachgerüstet werden.It also proves to be advantageous that the securing element in this embodiment can be attached between the upper and lower head part in the slot. This allows the securing element to be designed as a separate component, which is moved into the slot during a first switchover and out of the slot during a further switchover. The wedge locking element can thus be designed as a retrofittable element. Existing cross bars / fastening elements can be retrofitted with a wedge locking element.

Der Schlitz kann jede beliebige Form annehmen also auch als halbrunde Aussparung, quadratische Aussparung, oder in ähnlicher Weise ausgeführt sein. In einer Ausführungsform ist der Schlitz als sich verengender Schlitz, insbesondere konisch ausgeführt.The slot can assume any shape, including a semicircular recess, a square recess, or a similar design. In one embodiment, the slot is designed as a narrowing slot, in particular conical.

Erfindungsgemäß ist das Keilsicherungselement als Schieberiegel ausgebildet. Der Schieberiegel verläuft im Schlitz des Befestigungselements. Der Schieberiegel ist im Wesentlichen parallel zum Schlitz verschiebbar. Der Schieberiegel steht in der Sicherungsposition in den Schlitz vor. Der Schieberiegel ist in der Befestigungsposition vollständig aus dem Schlitz zurückgeschoben.According to the invention, the wedge locking element is designed as a sliding bolt. The slide bolt runs in the slot of the fastening element. The sliding bolt can be moved essentially parallel to the slot. The sliding latch protrudes into the slot in the secured position. The sliding latch is pushed back completely out of the slot in the fastening position.

Vorteilhaft erweist sich, dass so das Keilsicherungselement einfach von der Sicherungsposition in die Befestigungsposition verschoben werden kann. Insbesondere ermöglicht die Ausbildung des Keilsicherungselements als Schieberiegel ein einfaches Umschalten des Keilsicherungselements durch die im Gebrauch in den Schlitz eingeführte Lochscheibe. Ist das Keilsicherungselement als Schieberiegel ausgeführt, welcher in der Sicherungsposition in den Schlitz vorsteht, so wird beim Verbinden mit der Lochscheibe der Schieberiegel von der Lochscheibe zurück gestossen. So kann das Keilsicherungselement auf einfachste Weise, ohne aktives Umschalten eines Benutzers von der Sicherungsposition in die Befestigungsposition umgeschaltet werden. Es erweist sich weiter als vorteilhaft, dass so das Keilsicherungselement mit Ausnahme des Schieberiegels, welcher in der Sicherungsposition in den Schlitz hineinragt und in der Befestigungsposition aus dem Schlitz herausgeschoben wird, ausserhalb des Schlitzes, insbesondere in der vorteilhaft parallel zum Schlitz verlaufenden Querstange untergebrach werden kann. Dies hat den Vorteil, dass der Mechanismus, welcher das Umschalten des Keilsicherungselements ermöglicht einfach im Hohlraum der Querstange angeordnet und von dieser geschützt werden kann. Das Keilsicherungselement kann so platzsparend und von Umweltbedingungen geschützt angeordnet werden. Weiter kann der Keilkopf seine übliche Form beibehalten. Die bis anhin verwendeten Keilköpfe könne so ohne grosse Umgestaltung einfach mit der Funktion eines Keilsicherungselementes nachgerüstet werden.It has proven to be advantageous that the wedge securing element can thus be easily moved from the securing position into the fastening position. In particular, the design of the wedge locking element as a sliding bolt enables the wedge locking element to be easily switched over by the perforated disc inserted into the slot during use. If the wedge locking element is designed as a sliding bolt which protrudes into the slot in the locking position, the sliding bolt is pushed back from the perforated disk when it is connected to the perforated disk. In this way, the wedge securing element can be switched over from the securing position to the fastening position in the simplest manner without active switching by a user. It also proves to be advantageous that in this way the wedge locking element, with the exception of the sliding bolt, which protrudes into the slot in the locking position and is pushed out of the slot in the fastening position, can be accommodated outside the slot, in particular in the crossbar, which advantageously runs parallel to the slot . This has the advantage that the mechanism which enables the wedge locking element to be switched over can easily be arranged in the cavity of the crossbar and protected by it. The wedge locking element can thus be arranged in a space-saving manner and protected from environmental conditions. Furthermore, the wedge head can retain its usual shape. The wedge heads used up to now can easily be retrofitted with the function of a wedge locking element without major redesign.

Ein Schieberiegel ist ein gegenüber dem Keilkopf verschiebbarer Riegel.A sliding bolt is a bolt that can be moved in relation to the wedge head.

In einer bevorzugten Ausführungsform ist der Schieberiegel derart ausgeführt, dass er in der Sicherungsposition so weit in den Schlitz hineinragt, dass er die gesamte Länge der Öffnung des Keilkopfs abdeckt.In a preferred embodiment, the sliding bolt is designed such that it is so far into the secured position Slot protrudes so that it covers the entire length of the opening of the wedge head.

Erfindungsgemäß ist der Schieberiegel derart ausgeführt, dass er in der Befestigungsposition vollständig aus dem Schlitz zurückgeschoben ist, da der Keil dann ohne Widerstand und ohne Beeinträchtigung seiner Bewegung von der Sicherungsposition in die Befestigungsposition bewegbar ist.According to the invention, the sliding bolt is designed such that it is pushed back completely out of the slot in the fastening position, since the wedge can then be moved from the secured position into the fastening position without resistance and without impairing its movement.

In einer bevorzugten Ausführungsform weist eine Fläche des Schieberiegels eine in einem Winkel verlaufende Fläche und/oder einen Nut auf.In a preferred embodiment, a surface of the sliding bolt has a surface running at an angle and / or a groove.

So kann die in einem Winkel verlaufende Fläche des Schieberiegels den Keil in seiner Sicherungsposition stabilisieren und/oder festhalten. Insbesondere kann das Keilende, welches in der Sicherungsposition den Schieberiegel berührt mit einer komplementären, ebenfalls in einem Winkel verlaufenden Fläche versehen sein.In this way, the surface of the sliding bolt that runs at an angle can stabilize and / or hold the wedge in its secured position. In particular, the wedge end which touches the sliding bolt in the locking position can be provided with a complementary surface that also runs at an angle.

Weiter ist es möglich den Keil durch den im Schieberiegel ausgeführten Winkel in einer Position zu halten, in welcher der Keil neben der stabilen Position auch in einer guten Ausgangslage für den nach dem Umschalten des Keilsicherungselements erwünschten Durchfall des Keils durch den Schlitz und die Öffnung befindet. So kann die Montage der Querstange an den Vertikalstiel weiter vereinfacht werden.Furthermore, it is possible to hold the wedge in a position by means of the angle in the sliding bolt, in which the wedge is not only in a stable position but also in a good starting position for the wedge to fall through the slot and the opening after switching the wedge locking element. In this way, the assembly of the cross bar on the vertical post can be further simplified.

Auch eine Nut erlaubt ein Stabilisieren des Keils, insbesondere wenn das Ende des Keilkopfs auf die Form und Position der Nut abgestimmt ist.A groove also allows the wedge to be stabilized, in particular if the end of the wedge head is matched to the shape and position of the groove.

In einer Ausführungsform ist das Keilsicherungselement vollständig im Schlitz des Keilkopfes ausgeführt. Der Keilkopf weist dementsprechend kein Durchgangsloch auf, durch welches Teile des Keilsicherungselements von der Vorderseite des Keilkopfs zur Rückseite des Keilkopfs reichen. In dieser Ausführungsform erstreckt sich das Keilsicherungselement in seiner Sicherungsposition so in den Schlitz, dass es eine Bewegung des Keils von der Sicherungsposition in die Befestigungsposition verhindert. In der Befestigungsposition des Keilsicherungselements ist das Keilsicherungselement noch immer vollständig im Spalt. Im Gegensatz zur Sicherungsposition ist das Keilsicherungselement jedoch nun so im Spalt angeordnet, dass der Keil von der Sicherungsposition in die Befestigungsposition verschiebbar ist.In one embodiment, the wedge locking element is carried out completely in the slot of the wedge head. The wedge head accordingly does not have a through hole through which parts of the wedge securing element extend from the front of the wedge head to the rear of the wedge head. In this embodiment, the wedge securing element extends into the slot in its securing position so that it prevents movement of the wedge from the securing position to the fastening position. In the fastening position of the wedge locking element, the wedge locking element is still completely in the gap. In contrast to the securing position, however, the wedge securing element is now arranged in the gap such that the wedge can be displaced from the securing position into the fastening position.

So muss das Keilsicherungselement nicht in den Keilkopf eingebracht sondern kann einfach auf diesen aufgesetzt werden. Ein Nachrüsten des Keilkopfs ist mit minimalem Aufwand möglich.The wedge locking element does not have to be inserted into the wedge head but can simply be placed on it. Retrofitting the wedge head is possible with minimal effort.

In einer Ausführungsform ist das Keilsicherungselement als zusammendrückbares Element im Schlitz ausgeführt. In seiner Sicherungsposition ist das Keilsicherungselement ausgedehnt und versperrt den Schlitz wenigstens teilweise. In seiner Befestigungsposition ist das Keilsicherungselement derart zusammengedrückt, dass es der Keil von der Sicherungsposition in die Befestigungsposition bewegt werden kann.In one embodiment, the wedge locking element is designed as a compressible element in the slot. In its locking position, the wedge locking element is expanded and at least partially blocks the slot. In its fastening position, the wedge securing element is compressed in such a way that the wedge can be moved from the securing position into the fastening position.

In einer Ausführungsform ist das Keilsicherungselement als steife Plate, welche rückseitig Federn umfasst ausgeführt. Die Federn weisen eine Verbindungsvorrichtung zur Verbindung mit dem Keilkopf auf. Weiter umfasst die Vorrichtungen einen Federschutz, beispielsweise einen Faltenbalg, welcher die Federn vor Schmutz schütz und gleichzeitig eine Auflagefläche für den Keil bildet.In one embodiment, the wedge securing element is designed as a rigid plate, which comprises springs on the rear. The springs have a connecting device for connection to the Wedge head up. The devices further include a spring protection, for example a bellows, which protects the springs from dirt and at the same time forms a support surface for the wedge.

In einer bevorzugten Ausführungsform ist der obere und/oder der untere Kopfteil derart geformt, dass sich ein verengender Schlitz ergibt.In a preferred embodiment, the upper and / or the lower head part is shaped in such a way that a narrowing slot results.

Vorteilhaft erweist sich, dass so das Befestigungselement einfach an die Lochscheibe des Vertikalstiels herangeführt und die Lochscheib in der Spaltmitte zentriert werden kann. Die Lochscheibe kann ohne genaues Zielen in den breiten Schlitzbereich eingeführt werden und anschliessend durch ein einfaches vertikales Schieben mühelos zentriert werden. Dies erleichtert das Anbringen der Querstange an die Lochscheibe und ermöglicht es das Anbringen auch aus Distanz.It has proven to be advantageous that the fastening element can thus be easily brought up to the perforated disc of the vertical post and the perforated disc can be centered in the middle of the gap. The perforated disc can be inserted into the wide slot area without precise aiming and then easily centered by simply pushing it vertically. This makes it easier to attach the crossbar to the perforated disc and also enables it to be attached from a distance.

In einer bevorzugten Ausführungsform ist das Keilsicherungselement lösbar mit dem Befestigungselement verbunden. Insbesondere ist das Keilsicherungselement durch eine Klickverbindung lösbar mit dem Befestigungselement verbunden.In a preferred embodiment, the wedge locking element is detachably connected to the fastening element. In particular, the wedge locking element is detachably connected to the fastening element by a click connection.

So kann das Keilsicherungselement als eigenständige Einheit ausgeführt werden. Das Keilsicherungselement kann je nach Bedarf an die Befestigungseinheit angebracht werden. Insbesondere erlaubt eine lösbare Verbindung zwischen dem Keilsicherungselement und dem Befestigungselement einen einfachen Austausch des Keilsicherungselements, beispielsweise bei einem Defekt des Keilsicherungselements.The wedge locking element can be designed as an independent unit. The wedge locking element can be attached to the fastening unit as required. In particular, a detachable connection between the wedge locking element and the fastening element allows the wedge locking element to be replaced easily, for example in the event of a defect in the wedge locking element.

In einer bevorzugten Ausführungsform umfasst das Befestigungselement ein Rückstellelement. Das Rückstellelement ist in einer bevorzugten Ausführungsform im Keilsicherungselement angebracht. In einer bevorzugten Ausführungsform ist das Rückstellelement eine Feder, welcher der Umstellbewegung des Keilsicherungselements von der Sicherungsposition in die Befestigungsposition entgegen wirkt.In a preferred embodiment, the fastening element comprises a restoring element. The reset element is in a preferred embodiment mounted in the wedge locking element. In a preferred embodiment, the restoring element is a spring which counteracts the movement of the wedge securing element from the securing position to the fastening position.

So erfährt das Keilsicherungselement beim Umschalten von der Sicherungsposition in die Befestigungsposition einen Widerstand. Durch diesen Widerstand wird ein ungewolltes Umschalten von der einen Position in die andere Position erschwert. Insbesondere wird so das ungewollte Umschalten beim Heranführen der Querstange an den Vertikalstiel verhindert und somit die einfach Montage der Befestigungseinheit ermöglicht.The wedge securing element experiences resistance when switching from the securing position to the fastening position. This resistance makes it difficult to switch from one position to the other. In particular, unwanted switching when the cross bar is brought up to the vertical post is prevented and the fastening unit can thus be easily installed.

In einer bevorzugten Ausführungsform umfasst das Keilsicherungselement weiter eine Einrastvorrichtung, welche beim Umstellen des Keilsicherungselements von der Sicherungsposition in die Befestigungsposition beim Erreichen der Befestigungsposition das Keilsicherungselement in der Befestigungsposition einrastet.In a preferred embodiment, the wedge securing element further comprises a latching device which, when moving the wedge securing element from the securing position to the fastening position, engages the wedge securing element in the fastening position when the fastening position is reached.

Vorteilhaft erweist sich, dass so das Erstellen eines Formschluss zwischen dem Befestigungselement und der Lochscheibe vereinfacht wird, in dem das Keilsicherungselement dem Befestigungselement nach einmaligem Erreichen der Anschlagsposition keinen Widerstand mehr bietet. Dies ist insbesondere dann vorteilhaft, wenn zur Erreichung des Formschlusses (finden eines Loches) das Befestigungselement auf der Lochscheibe hin und her bewegt werden muss.It has been found to be advantageous that creating a form fit between the fastening element and the perforated disk is simplified in that the wedge locking element no longer offers any resistance to the fastening element after the stop position has been reached once. This is particularly advantageous when the fastening element has to be moved back and forth on the perforated disk in order to achieve the form fit (find a hole).

In einer Ausführungsform ist die Einrastvorrichtung so ausgeführt, dass diese manuell lösbar ist. So kann die Einrastvorrichtung nach der Lösung der Verbindung zwischen dem Befestigungselement und der Lochscheibe deaktiviert werden. Die Befestigungseinheit kann anschliessend erneut verwendet werden.In one embodiment, the latching device is designed such that it can be released manually. So the latching device after the release of the connection between the fastening element and the perforated disc can be deactivated. The fastening unit can then be used again.

In einer bevorzugten Ausführungsform weist das Keilsicherungselement eine Kontaktfläche zum Kontakt mit einem Vertikalstiel auf. Die Fläche weist bevorzugt wenigstens eine Rille auf.In a preferred embodiment, the wedge locking element has a contact surface for contact with a vertical post. The surface preferably has at least one groove.

Vorteilhaft erweist sich, dass durch die Rille bei der Verzinkung der Fläche das überschüssige Zink über die Rille abfliessen kann. So entsteht auf einfache Weise und ohne die Notwendigkeit von weiteren Arbeitsschritten eine ebene Kontaktfläche. Eine solche Kontaktfläche erlaubt es das Befestigungselement bündig an den Vertikalstiel anzubringen. Dies ist insbesondere für die Herstellung eines Formschlusses, insbesondere für das selbständige durch die Schwerkraft bedingte Fallen des Keils von der Sicherungsposition durch die Öffnungen des Keilkopfs in die Befestigungsposition, in welcher der Keil einen Formschluss mit der Lochscheibe bildet von grosser Wichtigkeit. Denn bei unebener Fläche das Befestigungselement kann das Element unter Umständen gar nicht so an die Lochscheibe herangeführt werden kann, dass der Keil von der Sicherungsposition in die Befestigungsposition bewegt werden kann.It has proven to be advantageous that the groove allows the excess zinc to flow off through the groove when the surface is galvanized. This creates a flat contact surface in a simple way and without the need for further work steps. Such a contact surface allows the fastening element to be attached flush to the vertical post. This is particularly important for creating a form fit, in particular for the wedge to fall independently due to gravity from the securing position through the openings in the wedge head into the fastening position in which the wedge forms a form fit with the perforated disk. Because if the surface of the fastening element is uneven, the element may not be able to be brought up to the perforated disk in such a way that the wedge can be moved from the securing position into the fastening position.

In einer Ausführungsform weist der Keilkopf eine Öffnung zur Aufnahme von Verbindungselementen zur Verbindung des Keilsicherungselements mit dem Keilkopf auf.In one embodiment, the wedge head has an opening for receiving connecting elements for connecting the wedge locking element to the wedge head.

Selbstverständlich kann der Keilkopf auch die Verbindungselemente aufweisen, wobei die Öffnung entsprechend im Keilsicherungselement vorgesehen sind.Of course, the wedge head can also have the connecting elements, with the opening being provided accordingly in the wedge locking element.

Zur Lösung der Aufgabe führt ebenfalls ein Gerüst umfassend wenigstens ein Vertikalstiel mit einer Lochscheibe, einer Querstange mit einem Befestigungselement wie vorangehend beschrieben.A frame comprising at least one vertical post with a perforated disk, a cross bar, also leads to the solution of the object with a fastening element as described above.

In einer bevorzugten Ausführungsform ist das Gerüst derart ausgebildet, dass ein Keilkopf des Befestigungselements, insbesondere ein Schlitz des Befestigungselements und die Lochscheibe in ihre Form derart aufeinander abgestimmt, dass die Lochscheibe in den Schlitz führbar ist. Das Keilsicherungselement ist derart ausgeführt, dass es beim Einfügen der Lochscheibe in den Schlitz von der Sicherungsposition in die Befestigungsposition umschaltet.In a preferred embodiment, the framework is designed in such a way that a wedge head of the fastening element, in particular a slot of the fastening element, and the perforated disk are matched to one another in their shape in such a way that the perforated disk can be guided into the slot. The wedge locking element is designed in such a way that it switches from the locking position to the fastening position when the perforated disk is inserted into the slot.

Vorteilhaft erweist sich, dass so die Verbindung des Vertikalstiels mit der Querstange besonders fehlerunanfällig hergestellt werden kann. Das Keilsicherungselement stellt sicher, dass der Keil nicht schon zu früh in die Öffnung des Keilkopfs hinein fällt. Ein Gerüst bestehend aus mehreren Querstangen und Vertikalstielen ist so besonders einfach aufbaubar.It has proven to be advantageous that in this way the connection of the vertical post to the transverse rod can be established in a particularly error-free manner. The wedge locking element ensures that the wedge does not fall into the opening of the wedge head too early. A scaffold consisting of several cross bars and vertical posts is particularly easy to assemble.

In einer bevorzugten Ausführungsform sind die Löcher der Lochscheibe und der Keil derart aufeinander abgestimmt, dass nach dem Umschalten des Keilsicherungselements der Keil durch die Schwerkraft von selbst in das Loch der Lochscheibe fällt. Der der Keil fällt somit von alleine in einen Formschluss.In a preferred embodiment, the holes of the perforated disc and the wedge are matched to one another in such a way that after the wedge locking element has been switched over, the wedge falls automatically into the hole of the perforated disc by gravity. The wedge thus falls into a form fit by itself.

Vorteilhaft erweist sich, dass die Verbindung zwischen dem Vertikalstiel und der Querstange so einfach hergestellt werden kann, ohne dass dabei eine Person den Keil von der Sicherungsposition in die Befestigungsposition bewegen muss.It has proven to be advantageous that the connection between the vertical post and the crossbar can be made so easily without a person having to move the wedge from the securing position into the fastening position.

Zur Lösung der Aufgabe führt ebenfalls ein Verfahren zur Herstellung eines Gerüstes. In diesem Verfahren wird eine Querstange mit einem Befestigungselement wie vorangehenden und im Folgenden beschrieben mit einem Vertikalstiel verbunden.A method for producing a framework also leads to the solution of the problem. In this procedure, a cross bar is used connected with a fastening element as described above and below with a vertical stem.

Vorteilhaft erweist sich, dass das Verfahren aufgrund des Keilsicherungselements besonders einfach ausgeführt werden kann, da der Keil während des Verfahrens durch das Keilsicherungselement vor dem Durchfall in die Öffnung des Keilkopfs bewahrt wird.It has been shown to be advantageous that the method can be carried out particularly easily due to the wedge locking element, since the wedge is prevented from falling into the opening of the wedge head during the method by the wedge locking element.

In einer Ausführungsform ist die Lochscheibe des Vertikalstiels mit einem rund um die Scheibe reichenden Langloch ausgeführt.In one embodiment, the perforated disc of the vertical post is designed with an elongated hole extending around the disc.

So kann der Keil einfach ohne Ausrichtung an der Lochscheibe von der Sicherungsposition in die Befestigungsposition fallen, sobald das Keilsicherungselement umgeschaltet wurde.In this way, the wedge can simply fall from the securing position into the fastening position without alignment on the perforated disk as soon as the wedge securing element has been switched.

In einer weiteren Ausführungsform ist die Lochscheibe des Vertikalstiels mit zwei halbrunden Langlöchern ausgeführt. So wird eine stärkere Festigkeit der Lochscheibe ermöglicht ohne dass ein wesentliches Ausrichten des Befestigungselements an der Lochscheibe nötig wird. Dies spart Zeit und somit Kosten.In a further embodiment, the perforated disc of the vertical post is designed with two semicircular elongated holes. This enables the perforated disc to be stronger without the need for any substantial alignment of the fastening element on the perforated disc. This saves time and therefore costs.

Die Erfindung wird im Folgenden an Hand von Ausführungsbeispielen in Figuren weiter erläutert. Hierbei zeigen:

  • Figur 1: Schematisch ein erstes Ausführungsbeispiel eines Vertikalstiels und einer Querstange mit einem erfindungsgemässen Befestigungselement.
  • Figur 2: Das Befestigungselement des ersten Ausführungsbeispiels aus Figur 1 in der Sicherungsposition in einer perspektivischen Darstellung.
  • Figur3: Das Befestigungselement des ersten Ausführungsbeispiels aus Figur 1 in der Befestigungsposition in einer seitlichen Perspektive.
  • Figur 4: Das Befestigungselement des ersten Ausführungsbeispiels aus Figur 1 in einer perspektivischen Darstellung von unten.
  • Figur 5: Das Befestigungselement des ersten Ausführungsbeispiels aus Figur 1 in einer Draufsicht.
  • Figur 6: Das Befestigungselement des ersten Ausführungsbeispiels aus Figur 1 in einer Rückansicht.
  • Figur 7: Das Befestigungselement des ersten Ausführungsbeispiels aus Figur 1 in einer Vorderansicht.
  • Figur 8: Das Keilsicherungselement eines erfindungsgemässen Befestigungselements.
In the following, the invention is further explained in figures using exemplary embodiments. Here show:
  • Figure 1 : Schematically a first embodiment of a vertical stick and a cross bar with a fastening element according to the invention.
  • Figure 2 : The fastener of the first embodiment Figure 1 in the secured position in a perspective view.
  • Figure3 : The fastener of the first embodiment Figure 1 in the mounting position in a side perspective.
  • Figure 4 : The fastener of the first embodiment Figure 1 in a perspective view from below.
  • Figure 5 : The fastener of the first embodiment Figure 1 in a top view.
  • Figure 6 : The fastener of the first embodiment Figure 1 in a rear view.
  • Figure 7 : The fastener of the first embodiment Figure 1 in a front view.
  • Figure 8 : The wedge locking element of a fastening element according to the invention.

Figur 1 zeigt ein Vertikalstiel 3, welcher eine Lochscheibe 9 umfasst. Weiter ist eine Querstange 2 mit einem Befestigungselement 1 gezeigt. Die Querstange 2 kann durch das Befestigungselement 1 mit einer Lochscheibe 9 des Vertikalstiels 3 und somit mit dem Vertikalstiel 3 verbunden werden. Das Befestigungselement 1 weist dazu einen Keilkopf 5, welcher einen Schlitz 12 aufweist, einen Keil 6 und ein Keilsicherungselement, welches in Form eines Schieberiegels 13 im Schlitz 12 ausgeführt ist auf. Der Keilkopf 5 des Befestigungselements 1 wird zur Herstellung der Verbindung an die Lochscheibe 9 herangeführt. Ist das Befestigungselement 1 genug nahe an der Lochscheibe 9, schiebt bei weiterem heran bewegen der Querstange 2 an den Vertikalstiel 3 die Lochscheibe 9 den Schieberiegel 13 horizontal in die Querstange 2 zurück. Der Keil 6 fällt bei richtiger Ausrichtung schwerkraftbedingt in ein Loch der Lochscheibe 9. Die Querstange 2 ist so mit dem Vertikalstiel 3 formschlüssig verbunden. Figure 1 shows a vertical post 3 which comprises a perforated disk 9. A crossbar 2 with a fastening element 1 is also shown. The cross bar 2 can be connected to a perforated disk 9 of the vertical post 3 and thus to the vertical post 3 by the fastening element 1. For this purpose, the fastening element 1 has a wedge head 5 which has a slot 12, a wedge 6 and a wedge securing element which is designed in the form of a sliding bolt 13 in the slot 12. The wedge head 5 of the fastening element 1 is brought up to the perforated disk 9 to produce the connection. If the fastening element 1 is close enough to the perforated disk 9, as the cross bar 2 moves further towards the vertical post 3, the perforated disk 9 pushes the slide latch 13 horizontally into the cross bar 2 back. When properly aligned, the wedge 6 falls into a hole in the perforated disk 9 due to gravity. The cross rod 2 is thus connected to the vertical post 3 in a form-fitting manner.

Die bereits beschriebenen Elemente werden im Folgenden nicht weiderholt, wobei die vorangehende Beschreibung, wenn nichts anderes erwähnt ist, ebenso auf die Elemente der weiteren Figuren zutrifft.The elements already described are not repeated below, the preceding description also applying to the elements of the other figures, unless otherwise stated.

Figur 2 zeigt Keilkopf 5 bestehend aus einem oberen Kopfteil 10 und einem unteren Kopfteil 11. Zwischen den beiden Kopfteilen 10, 11 bildet sich der Schlitz 12. Der obere und untere Kopfteil 10, 11 weisen jeweils eine Öffnung 8 auf (siehe Figur 5 bezüglich der Öffnung des oberen Kopfteils). Figure 2 shows wedge head 5 consisting of an upper head part 10 and a lower head part 11. The slot 12 is formed between the two head parts 10, 11. The upper and lower head parts 10, 11 each have an opening 8 (see FIG Figure 5 regarding the opening of the upper head part).

Der Schieberiegel 13 befindet sich in einer Sicherungsposition, in welcher er ausgefahren ist und den Schlitz 12 hineinragt. Der Schieberiegel 13 weist eine Nut 19 auf. Keil 6 ist durch die Öffnung des oberen Kopfteils 10 gesteckt, an welchem er unverlierbar befestigt ist. Der Keil 6 liegt auf dem Schieberiegel 13 auf und wird durch diesen vor dem Durchdringen des Schlitzes 12 und der Öffnung 8 des unteren Kopfteils 11 gehindert.The sliding bolt 13 is in a securing position in which it is extended and the slot 12 protrudes. The sliding bolt 13 has a groove 19. Wedge 6 is inserted through the opening of the upper head part 10, to which it is captively attached. The wedge 6 rests on the sliding bolt 13 and is prevented by this from penetrating the slot 12 and the opening 8 of the lower head part 11.

Der Keilkopf 5 weist am oberen Kopfteil 10, sowie am unteren Kopfteil 11 eine Kontaktfläche 17 auf. Diese Kontaktflächen 17 sind senkrecht zum Schieberiegel 13 ausgeführt. Die Kontaktflächen 17 weisen jeweils zwei Rillen 18 auf, welche bei der Herstellung des Keilkopf dem Abfluss des Zinks dienen, so dass ebene Kontaktfläche entstehen, ohne dass dazu weitere Arbeitsschritte nötig sind.The wedge head 5 has a contact surface 17 on the upper head part 10 and on the lower head part 11. These contact surfaces 17 are designed perpendicular to the sliding bolt 13. The contact surfaces 17 each have two grooves 18 which serve to drain the zinc during the manufacture of the wedge head, so that flat contact surfaces are created without further work steps being necessary.

Der Keil 6 steht in einem spitzen Winkel zum Schieberiegel 13 in einer stabilen Sicherungsposition am Schieberiegel 13 an.The wedge 6 is at an acute angle to the sliding bolt 13 in a stable securing position on the sliding bolt 13.

Figur 3 zeigt den Keilkopf 5 aus einer seitlichen Perspektive. Der Schieberiegel 13 des Keilsicherungselements 7 befindet sich in einer eingefahrenen Position, welche einer Befestigungsposition entspricht. Der Keil 6 ist deshalb im Gegensatz zu Figur 2 nicht in der Sicherungsposition, sondern in einer Befestigungsposition. In der Befestigungsposition ist der Keil 6 sowohl in der Öffnung des oberen Kopfteils als auch in der Öffnung des unteren Kopfteil 11 eingebracht. Der Keil 6 durchdringt in dieser Position den Schlitz 12. Der Keil 6 ist so ausgeführt, dass er nach dem Durchdringen des Schlitzes 12 und der Öffnung des unteren Kopfteils 11 für ein weiteres Durchfallen zu dick ausgebildet ist. Der Keil 6 befindet sich deshalb in einer stabilen Befestigungsposition. Figure 3 shows the wedge head 5 from a side perspective. The slide bolt 13 of the wedge locking element 7 is in a retracted position, which corresponds to a fastening position. The wedge 6 is therefore in contrast to Figure 2 not in the secured position, but in a fastening position. In the fastening position, the wedge 6 is introduced both in the opening in the upper head part and in the opening in the lower head part 11. In this position, the wedge 6 penetrates the slot 12. The wedge 6 is designed such that, after the penetration of the slot 12 and the opening of the lower head part 11, it is too thick for further falling through. The wedge 6 is therefore in a stable fastening position.

In Figur 4 ist der Keilkopf 5 von unten, d. h. mit Blick an die Unterseite des unteren Kopfteils 11 gezeigt. Das Keilsicherungselement 7 ist in diese Figur in der Sicherungsposition dargestellt. Der Schieberiegel 13 ist also ausgefahren und durch die Öffnung 8 des unteren Kopfteils 11 sichtbar. Der Schieberiegel verhindert in dieser Position das Durchfallen des Keils 6 (nicht sichtbar).In Figure 4 the wedge head 5 is shown from below, ie with a view of the underside of the lower head part 11. The wedge locking element 7 is shown in this figure in the locking position. The sliding bolt 13 is therefore extended and visible through the opening 8 of the lower head part 11. In this position, the sliding bolt prevents the wedge 6 (not visible) from falling through.

Figur 4 zeigt erneut die Kontaktfläche 17 des Keilkopfes 5. Die Rillen 18 sind in der Kontaktfläche 17 ersichtlich. Weiter sieht man dass die Kontaktfläche leicht gekrümmt ausgebildet ist. Die Krümmung entspricht dem Radius des Vertikalstiels 3, mit welcher der Keilkopf 5 verbunden werden soll. Figure 4 shows the contact surface 17 of the wedge head 5 again. The grooves 18 can be seen in the contact surface 17. It can also be seen that the contact surface is slightly curved. The curvature corresponds to the radius of the vertical post 3 with which the wedge head 5 is to be connected.

Figur 5 zeigt den Keilkopf 5 von oben. In dieser Perspektive ist der Keil 6 erkennbar. Keil 6 ist in dieser Figur in der Befestigungsposition dargestellt. Der Schieberiegel 13 ist in dieser Figur nicht sichtbar, da der Schieberiegel in seiner Befestigungsposition, d. h. im Keilsicherungselement 7 eingefahren ist. In dieser Perspektive ist ausschliesslich der obere Kopfteil 10 ersichtlich. Figure 5 shows the wedge head 5 from above. The wedge 6 can be seen in this perspective. Wedge 6 is shown in the fastening position in this figure. The sliding bolt 13 is not visible in this figure, since the sliding bolt in its fastening position, ie is retracted in the wedge locking element 7. In this perspective, only the upper head part 10 can be seen.

Figur 6 zeigt den Keilkopf 5 von vorne. Der Keil 6 befindet sich in der Befestigungsposition. Der Schieberiegel 13 ist - um diese Keilposition überhaupt zu ermöglichen - ebenfalls in seiner Befestigungsposition, d. h. in das Keilsicherungselement eingefahren. Figure 6 shows the wedge head 5 from the front. The wedge 6 is in the fastening position. The sliding bolt 13 is - in order to make this wedge position possible at all - also in its fastening position, ie retracted into the wedge locking element.

Figur 7 zeigt den Keilkopf 5 von hinten. Es ist ersichtlich, wie das Keilsicherungselement 7 durch Klickverbindungen 14 an dem Keilkopf 5 angebracht sind. Eine solche Klickverbindung 14 ist eine lösbare Verbindung, sodass das Keilsicherungselement jederzeit von dem Keilkopf 5 entfernt werden kann. Figure 7 shows the wedge head 5 from behind. It can be seen how the wedge securing element 7 is attached to the wedge head 5 by click connections 14. Such a click connection 14 is a detachable connection so that the wedge locking element can be removed from the wedge head 5 at any time.

Figur 8 zeigt eine Explosionsdarstellung des Keilsicherungselements 7. Es besteht aus einem Gehäuse, welches die Klickverbindungselemente 14 umfasst. Das Gehäuse umfasst weiter einen Deckel, welcher ebenfalls durch Klickverbindungselemente auf den anderen Teil des Gehäuses verbunden werden kann. Im Gehäuse findet der Schieberiegel 13 Platz. Der Schieberiegel 13 ist mit einem Rückstellungselement 15 verbunden. Das Rückstellungselement 15 ist in diesem Ausführungsbeispiel als Feder ausgeführt. Ist das Keilsicherungselement 7 zusammengebaut so drückt die Feder 15 den Schieberiegel 13 aus dem Keilsicherungselement heraus, wodurch sich der Schieberiegel in der Sicherungsposition gezwungen wird. Figure 8 4 shows an exploded view of the wedge locking element 7. It consists of a housing which includes the click connection elements 14. The housing further comprises a cover which can also be connected to the other part of the housing by means of click connection elements. There is space for the sliding bolt 13 in the housing. The sliding bolt 13 is connected to a restoring element 15. The restoring element 15 is designed as a spring in this exemplary embodiment. If the wedge locking element 7 is assembled, the spring 15 pushes the sliding bolt 13 out of the wedge locking element, whereby the sliding bolt is forced into the locking position.

Wird nun im Gebrauch der Keilkopf 5 mit dem Keilsicherungselement 7 an eine Lochscheibe 9 eines Vertikalstiels 3 herangeführt, so berührt der Schieberiegel 13 die Lochscheibe 9. Der Schieberiegel 13 wird bei weiterem Heranführen der Querstange 2 an den Vertikalstiel 3 entgegen der Federkraft der Feder 15 in das Keilsicherungselement 7 hinein gestossen. Erreicht der Schieberiegel 13 eine gewisse Position, beispielsweise eine völlig ins Gehäuses eingefahrene Position, so kann der Schieberiegel 13 im Keilsicherungselement 7 einrasten und so in der erreichten Position fixiert werden.If the wedge head 5 with the wedge securing element 7 is now brought up to a perforated disk 9 of a vertical post 3 during use, the slide bolt 13 contacts the perforated disk 9. The slide bolt 13 becomes the crossbar 2 when the crossbar 2 is moved further on the vertical post 3 against the spring force of the spring 15 pushed into the wedge locking element 7. If the sliding bolt 13 reaches a certain position, for example a position completely retracted into the housing, the sliding bolt 13 can snap into the wedge locking element 7 and thus be fixed in the position reached.

Claims (13)

  1. Fastening element (1) for connecting a crossbar (2) to a vertical shaft (3) of a scaffolding (4), comprising a wedge head (5) and a wedge (6), wherein a wedge securing element (7) is formed in the wedge head (5) and the wedge (6) can be inserted through an opening (8) in the wedge head (5) so that the fastening element (1) can be positively connected to a perforated disc (9) of a vertical shaft (3), wherein the wedge securing element (7) can be changed over from a securing position into a fastening position, wherein the wedge (6) can be inserted into the opening (8) exclusively in the fastening position in such a way that, in use, a form fit is produced between the fastening element (1) and the perforated disc (9), wherein the wedge head (5) has an upper head part (10) and a lower head part (11) each with an opening (8), wherein a slot (12) is formed between the upper head part (10) and the lower head part (11), wherein the wedge securing element (7) in the securing position at least partially blocks the path between the two openings (8), wherein the wedge securing element is designed as a sliding bolt and the sliding bolt (13) extends in the slot (12) of the fastening element (1) and is displaceable substantially parallel to the slot (12), the sliding bolt (13) projecting into the slot (12) in the securing position, characterised in that the sliding bolt (13) is pushed back completely out of the slot in the fastening position.
  2. Fastening element (1) according to claim 1, wherein the wedge head (5) and the wedge securing element (7) are designed in such a way that in the securing position the wedge (6) can be fixed in a holding position, wherein the wedge head (5) and the wedge securing element (7) are designed in such a way that the wedge (6) falls from the holding position into a closing position when the wedge securing element (7) is changed over.
  3. Fastening element (1) according to claim 1, wherein one surface of the sliding bolt (13) is formed to extend at an angle and/or has a groove (19).
  4. The fastening element (1) according to claims 1 to 3, wherein the upper and/or the lower head part (10, 11) are formed in such a way that a narrowing slot (12) is formed.
  5. Fastening element (1) according to one of the preceding claims, wherein the wedge securing element (7) is detachably connected to the fastening element (1), in particular by a click connection (14).
  6. Fastening element (1) according to one of the preceding claims, further comprising a restoring element (15), in particular a spring, which counteracts the changeover movement of the wedge securing element (7) from the securing position to the fastening position.
  7. Fastening element (1) according to one of the preceding claims, wherein the wedge securing element (7) further has an engagement device which engages when the wedge securing element (7) is moved from the securing position into the fastening position, when the fastening position is reached.
  8. Fastening element (1) according to one of the preceding claims, said fastening element (1) having a contact surface (17) for contact with the vertical stem (3), said surface (17) having at least one groove (18).
  9. Scaffolding (4) comprising at least one vertical stem (3) with a perforated disc (9) and a crossbar (2), characterized by a fastening element (1) according to one of the preceding claims 1 to 8.
  10. Scaffolding (4) according to claim 9, wherein the slot (12) of the fastening element (1) and the perforated disc (9) are matched to one another in their shape in such a way that the perforated disc (7) can be guided into the slot (12) and the wedge securing element (7) switches over from the securing position into the fastening position in the process.
  11. Scaffolding (4) according to one of claims 9 or 10, wherein the holes of the perforated disc (9) and the wedge (6) are matched to one another in such a way that after the wedge securing element (7) has switched over, the wedge (6) falls by gravity through the hole in the perforated disc (9) into a positive fit of its own accord.
  12. A method of manufacturing a scaffolding (4), characterised in that a crossbar (2) with a fastening element (1) according to one of claims 1 to 8 is connected to a perforated disc of a vertical stem (3).
  13. Fastening element according to one of claims 1 to 6, characterized in that the wedge securing element comprises a restoring element (15) and connecting elements (14), in particular click-connecting elements (14), which can be inserted into further openings in the wedge head (5), the wedge securing element comprising a latching device for latching the wedge securing element in the fastening position when the fastening position is reached when the wedge securing element is moved from the securing position to the fastening position.
EP17203725.1A 2017-11-27 2017-11-27 Fastening element, frame, method for producing a frame Active EP3489435B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17203725.1A EP3489435B1 (en) 2017-11-27 2017-11-27 Fastening element, frame, method for producing a frame
RS20210102A RS61422B1 (en) 2017-11-27 2017-11-27 Fastening element, frame, method for producing a frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17203725.1A EP3489435B1 (en) 2017-11-27 2017-11-27 Fastening element, frame, method for producing a frame

Publications (2)

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EP3489435A1 EP3489435A1 (en) 2019-05-29
EP3489435B1 true EP3489435B1 (en) 2020-12-02

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EP17203725.1A Active EP3489435B1 (en) 2017-11-27 2017-11-27 Fastening element, frame, method for producing a frame

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EP (1) EP3489435B1 (en)
RS (1) RS61422B1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02178442A (en) * 1988-12-28 1990-07-11 Tatsuo Ono Connecting method for stanchion and stanchion device
FR2680196A1 (en) * 1991-08-05 1993-02-12 Atem Sa DEVICE FOR ASSEMBLING AND ATTACHING AN END OF A RUNWAY TO AN EDGE AND SCAFFOLDING SYSTEM COMPRISING TRAVERS HAVING EACH OF THE END OF SUCH A DEVICE.
JPH0752283Y2 (en) * 1992-08-17 1995-11-29 アサヒ産業株式会社 Wedge type joint
US5988317A (en) * 1998-09-21 1999-11-23 Riding; Gary Modular hinged scaffold unit
JP4621028B2 (en) * 2004-01-21 2011-01-26 株式会社ラリック Scaffolding plate structure
US8393439B2 (en) * 2010-01-26 2013-03-12 Steve Howard Thacker Scaffold system and method
WO2012163340A1 (en) 2011-06-01 2012-12-06 Wilhelm Layher Verwaltungs-Gmbh Arrangement of a scaffolding component and of a vertical scaffolding element
DK3012385T3 (en) * 2014-10-20 2018-11-26 Jerslev Stilladsservice As Scaffolding Safety Railing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
RS61422B1 (en) 2021-03-31
EP3489435A1 (en) 2019-05-29

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