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EP-4560092-B1 - RAILING POST FOR A LEADING RAILING FOR A SCAFFOLD, SCAFFOLD WITH A LEADING RAILING AND METHOD FOR TRANSFERRING A LEADING RAILING TO A SCAFFOLD

EP4560092B1EP 4560092 B1EP4560092 B1EP 4560092B1EP-4560092-B1

Inventors

  • BEHRBOHM, Wolf Christian

Dates

Publication Date
20260513
Application Date
20200311

Claims (12)

  1. Railing post (10.1, 10.2, 10.3) for scaffolding (50) having scaffolding levels (52, 54) with vertical members (58.1, 58.2)/vertical frames (56) running in a longitudinal direction (L)/vertical direction, with crossbars (60.1, 60.2) running in a transverse direction (Q)/horizontal direction, guard rails (68) and decks (62), for the mounting of a so-called leading railing, by means of which at least one temporary guard rail (20) can be mounted, from an existing lower scaffolding level (54), for an upper scaffolding level (52) to be mounted thereabove, with - a first connection device (12.1, 12.2), - a second connection device (16), - a third connection device (18), wherein - the first connection device (12.1, 12.2) is arranged in the upper end region of the railing post (10.1, 10.2, 10.3), to which at least one temporary guard rail (20) can be releasably connected, - the third connection unit (16) is arranged in the lower end region of the railing post (10.1, 10.2, 10.3), which can be releasably connected to existing components of the scaffolding (50), in particular to the vertical member (58.1) with connected guard rails (68) or a rosette (66) of the vertical member (58.2), - the second connection device (14) is arranged at a distance in the longitudinal direction (L) above the third connection device (16), which can be connected to the vertical member (58.1, 58.2) of the scaffolding (50) in a releasably lockable manner, - the second connection device (14) has a first form-fit unit (24) connected fixedly to the railing post (10.1, 10.2, 10.3) and a movable, in particular rotatable, form-fit unit (26) connected above or below or within the fixed form-fit unit (24), which rotatable form-fit unit is movable from a closed position to a maximum opening position, and vice versa, wherein in the closed position a positive locking of an inserted railing post (10.1, 10.2, 10.3) on a vertical member (58.1, 58.2) of the scaffolding (50) is obtained, - the third connection device (16) is designed as a protrusion device running in the transverse direction (Q), with - a first connection region (34) connected to the railing post (10.1, 10.2, 10.3, 10.4), - wherein the first connection region (34) has a downwardly facing, in particular curved, protrusion unit (38, 38.1), - characterized in that - the third connection device (16) is designed as a protrusion device running in the transverse direction (Q), with - a second connection region (36) connected to the first connection region (34) in the transverse direction (Q), - wherein the second connection region (36) has a recess (40) that is open downwards in the longitudinal direction (L).
  2. Railing post according to Claim 1, - characterized in that - the rotatable form-fit unit (26) is designed as a hook unit, which has an inclined front end contour in its free front end region (51).
  3. Railing post according to Claim 2, - characterized in that - the fixed form-fit unit (24) and the rotatable form-fit unit (26) have, at least in some sections, a part-circular inner contour profile which corresponds to the outer contour profile of the vertical member (58.1, 58.2), wherein, seen in a plan view in the closed position of the rotatable form-fit unit (26) together with the fixed form-fit unit (24), a complete or almost complete circular inner contour results, which securely locks the inserted vertical member (58.1, 58.2) in a form-fitting manner.
  4. Railing post according to one or more of the preceding claims, - characterized in that - the rotatable form-fit unit is rotatable via an upper rotation actuation device, wherein the upper rotation actuation device (22.1) is arranged below the first connection device (12.1, 12.2).
  5. Railing post according to one or more of the preceding claims, - characterized in that - the second connection device (14) is arranged within the railing post (10.1, 10.3) in such a way that when the railing post (10.1) is connected to the vertical member (58.1), it is arranged directly below a protruding component of the scaffolding, in particular a gusset plate (64), so that a displacement in the longitudinal direction (L) is blocked.
  6. Railing post according to one or more of the preceding claims, - characterized in that , in the end region of the first connection unit (12.1), there is in each case at least one connection unit (72) for the temporary guard rail (20).
  7. Railing post according to Claim 6, - characterized in that - the connection units (72) each have a tilting pin (74).
  8. Railing post according to Claim 1, - characterized in that - the second connection region (36) has an outwardly open receiving unit (48) with two spaced-apart legs, on each of which the downwardly open recess (40) is formed.
  9. Railing post according to Claim 1, - characterized in that - the protrusion unit (38.1) is designed as a curved profile unit, in particular curved towards the railing post (10.1, 10.3).
  10. Scaffolding (50) having vertical frames (56) with vertical members (58.1), and with crossbars (60.1) which connect the vertical members (58.1) in the transverse direction (Q) and are connected via a gusset plate (64), and with guard rails (68) connected to the vertical members (58.1), - with a connected leading railing with railing posts (10.1, 10.3) according to one or more of the preceding Claims 1 to 9, - wherein temporary guard rails (20) are connected to the first connection device (12.1) on both sides, - the third connection device (16) is suspended in the existing guard rails (68) via its downwardly open recesses (40) of the second connection region (36), in the region where the existing guard rails (68) are connected to the vertical member (58.1), - the vertical member (58.1) runs through the open recess (48) of the second connection region (36), and - the second connection device (14) is connected to the vertical member (58.1) directly below the gusset plate (64), and therefore an upward displacement in the longitudinal direction (L) is blocked.
  11. Scaffolding (50) having vertical members (58.2), with rosettes (66) which have recesses and are connected in the longitudinal direction (L) in a predetermined unit spacing, and having crossbars (60.2) which connect the vertical members (58.2) to the rosettes (66) in the transverse direction (Q) by means of a wedge-head connection, and guard rails (68) connected to the rosettes (66) of the vertical members (58.2), - with a connected leading railing with railing posts (10.2, 10.4) according to one or more of the preceding Claims 1 to 9, - wherein temporary guard rails (20) are connected to the first connection device (12.2) on both sides, - the third connection device (16) is inserted, via its in particular curved protrusion unit (38) facing downwards in the longitudinal direction (L), into a recess of the rosette (66) to which the existing guard rails (68) are connected, so that a displacement in the longitudinal direction (L) is blocked by the safety stop unit (32) or by the curved contour of the protrusion unit (38), - the second connection device (14) is connected to the vertical member (58.2).
  12. Method for implementing a leading railing on scaffolding, in particular according to Claim 10 or 11, with railing posts (10.1, 10.2, 10.3, 10.4) according to one or more of Claims 1 to 9 connected to vertical members (58.1, 58.2), from an existing secured scaffolding level (54), for a further scaffolding level (52) to be mounted thereabove and secured, characterized by the following method steps: - releasing the second connection device (14) from the vertical member (58.1, 58.2), - tilting the railing post (10.1, 10.2, 10.3, 10.4) outwards, - lifting the railing post (10.1, 10.2, 10.3, 10.4) upwards in the longitudinal direction (L) to release the third connection device (16) from the vertical member (58.1, 58.2), - lifting the railing post (10.1, 10.2, 10.3, 10.4) further upwards in the longitudinal direction (L) until the height of the existing guard rail (68) is reached, - attaching the third connection device (16) at the height of the rosette (66) onto connected existing guard rails (68) by inserting the in particular curved protrusion unit (38.1) into a recess of the rosette (66) or at the height of the connection of the existing guard rails (68) to the vertical member (58.1) by attaching the second connection region (36) with the recesses (40) into the existing guard rails (68), - tilting the railing post (10.1, 10.2, 10.3, 10.4) in the direction of the vertical member (58.1, 58.2) of the scaffolding (50) for connecting the railing post (10.1, 10.2, 10.3, 10.4) to the vertical member (58.1, 58.2) via the second connection device (14), - connecting the second connection device (14) to the vertical member (58.1, 58.2).

Description

TECHNICAL AREA The present invention relates to a guardrail post for a scaffold with scaffold levels, vertical uprights/frames extending longitudinally/vertically, crossbeams extending transversely/horizontally, guardrail rails, and decking for mounting a so-called leading guardrail, by means of which at least one temporary, telescopic guardrail rail can be mounted from an existing lower scaffold level for an upper scaffold level to be mounted above it, comprising a first connection device, a second connection device, and a third connection device, wherein the first connection device is arranged in the upper end region of the guardrail post, to which at least one temporary guardrail rail can be detachably connected, the third connection device is arranged in the lower end region of the scaffold post, which can be detachably connected to existing components of the scaffold, in particular to the vertical upright with attached guardrail rails or a rosette of the vertical upright, and the second connection device is arranged longitudinally spaced above the third connection device, which is attached to The vertical post of the scaffold can be detachably and lockably connected; a continuous rotatable shaft is arranged inside the railing post; the rotatable shaft is connected to externally accessible rotary actuation devices, which are arranged in the upper and/or lower end area of the railing post and are movable in one direction, in particular rotatable in one direction of rotation; the second connection device is a positive locking unit firmly connected to the railing post and a [missing information] above or has a movable, in particular rotatable, form-locking unit connected below or within the fixed form-locking unit, which is movable from a closed position to a maximum open position and vice versa, wherein in the closed position a form-locking locking of an inserted guardrail post to a vertical post of the scaffold is provided. The present invention further relates to a scaffold with a leading railing having such railing posts and a method for repositioning a leading railing on an existing scaffold. Typically, side protection with a guardrail is only installed once the scaffolder is on the level of the scaffold being worked on. This is dangerous because, without side protection, the scaffolder is exposed at great heights and, in the worst-case scenario, could fall from the scaffold. To increase safety, so-called leading guardrails are used, which provide side protection on the upper level of the scaffold being worked on. These types of advancing guardrails typically consist of three individual components per scaffold bay: two identical guardrail posts attached to existing vertical uprights of the scaffold, to which at least one, and preferably two, telescopic rails are connected. The guardrail posts with their attached rails are assembled from the scaffold level below, thus providing at least a single section of side protection on the next, upper scaffold level due to their length. As construction progresses, one additional guardrail post of the advancing guardrail is successively moved upwards to secure the upper scaffold level for further assembly work. Disassembly is carried out in reverse order. STATE OF THE ART From the DE 10 2009 024 816 A A railing post for a leading railing is known, featuring two scissor-like claws that must be actively opened and closed for connection. A pin serves as a locking and securing mechanism at the bottom of the scissor-like claws. To ensure a positive fit, the outer tube of the railing post must be moved vertically, then rotated, and lowered again. Unlocking is performed in reverse order. A disadvantage of this leading railing is that installation and removal require awkward vertical and horizontal movements. Furthermore, during installation, care must be taken to ensure that the upper and lower scissor-like claws are fully connected to and encircle the vertical frame or post being attached. The EP 1 338 723 A2 discloses a device for mounting a temporarily existing guardrail of a scaffold, in which the third lower connection device is hooked onto existing guardrails and the second connection device is connected to the guardrail by means of a U-shaped receiving unit with wedge unit. The EP 1 571 275 A2 Disclosing a device for mounting a temporarily existing guardrail post with attached telescopic guardrails to existing vertical posts of a scaffold according to the features of the preamble of claim 1. The guardrail post has claws with an automatic clamping function, wherein a continuous rotatable shaft is inserted inside the guardrail post, which can be rotatably actuated via actuating units and is connected to the claws via a relatively complex mechanism. By a rotary movement of the actuating unit To connect the vertical post to the railing post, the posts must be actively opened and closed. This is achieved by rotating the operating unit accordingly. A disadvantage of t