Handrail, scaffold, method of erecting a scaffold and use of a handrail in a scaffold

Abstract

A guardrail for a scaffold, which has at least at one end a coupling section for coupling with a coupling element of a vertical post or vertical frame of the scaffold, wherein the coupling section is flat and is penetrated by an elongate opening which extends parallel to a longitudinal axis of the railing member and which has a constant width as far as an extension at the end.A scaffold comprising a guardrail, a method for erecting a scaffold and a use of a guardrail.

1 . A guardrail for a scaffold, having at least at one end a coupling portion for coupling to a coupling member of a vertical post or of a vertical frame of the scaffold,
 wherein the coupling portion is flat and is penetrated by an elongate opening which extends parallel to a longitudinal axis of the railing spar, which has a constant width up to an end widening.   
     
     
         2 . The guardrail according to  claim 1 ,
 wherein, in top view of the coupling portion, the opening and/or the extension is/are arranged centrally with respect to the longitudinal axis.   
     
     
         3 . The guardrail according to  claim 1 ,
 wherein the end-side widening is arranged at the end of the opening facing the railing spar, wherein, in top view of the coupling section, the opening is widened on one side only.   
     
     
         4 . The guardrail according to  claim 1 ,
 wherein, in top view of the coupling section, the extension is guided in a slot-like manner up to a side edge of the coupling section.   
     
     
         5 . The guardrail according to  claim 1 ,
 wherein the end-side widening is arranged at the end of the opening facing away from the railing spar, wherein, in top view of the coupling section, the opening is widened on both sides, is formed mirror-symmetrically with respect to the longitudinal axis.   
     
     
         6 . The guardrail according to  claim 5 ,
 wherein, in top view of the coupling section, the extension is rounded, circular or part-circular.   
     
     
         7 . The guardrail according to  claim 5 ,
 wherein the coupling section has a reduced width at its end facing away from the railing spar, wherein, for reducing the width, the coupling section has a recess on both sides.   
     
     
         8 . The guardrail according to  claim 1 ,
 wherein the coupling portion has, in top view, two straight side edges and an arcuate end edge connecting the two side edges, wherein the arcuate end edge is concentric with a rounding at the outer end of the opening.   
     
     
         9 . The guardrail according to  claim 1 ,
 wherein the guardrail is formed from a metal tube which has a circular cross-sectional shape and/or is plastically deformed at least at one end to form or receive a coupling portion.   
     
     
         10 . The guardrail according to  claim 1 ,
 wherein the guardrail has a coupling section at both ends and wherein the two coupling sections are of the same or of different design.   
     
     
         11 . A scaffolding having at least one guardrail according to  claim 1  and at least one vertical post or vertical frame, which has at least one coupling element for coupling to a coupling section of the guardrail spar. 
     
     
         12 . The scaffolding according to  claim 11 ,
 wherein the coupling element is substantially L-shaped and has a first section connected to the vertical stem or vertical frame and a second section arranged at right angles thereto, which second section extends vertically upwards in the position of use of the vertical stem or vertical frame.   
     
     
         13 . The scaffolding according to  claim 12 ,
 wherein the first portion and the second portion of the coupling element each have a circular cross-sectional shape and/or the second portion has a bead-like projection which extends only over a partial circumferential region.   
     
     
         14 . The scaffolding according to  claim 13 ,
 wherein the bead-like projection is arranged at least on the side of the second portion facing the vertical stem or the vertical frame, so that the distance between the second portion of the coupling element and the vertical stem or the vertical frame is reduced by the projection.   
     
     
         15 . A method of erecting a scaffold in which a guardrail according to  claim 1  is connected to an already assembled first vertical post or frame and a second vertical post or frame yet to be assembled, comprising:
 a) coupling a first coupling portion of the guardrail rail to a coupling member of the first vertical post or frame, 
 b) coupling a second coupling portion of the guardrail rail to a coupling member of the second vertical post or frame, 
 c) positioning the railing post with the aid of the second vertical post or frame, which is moved into its position of use for this purpose, the railing post being pivoted about the coupling element of the first vertical post or frame. 
 
     
     
         16 . The method according to  claim 15 ,
 wherein in step a) and/or in step b) the coupling element of the vertical post or frame is brought into engagement with the opening of the respective coupling portion of the railing rail.   
     
     
         17 . Use of a guardrail spar according to  claim 1  in a scaffold, in a modular or frame scaffold, for forming a leading guardrail.