| 摘要 |
<p>A vertical frame made of metal, particularly a scaffolding frame, having at least one first vertical shaft (21) and a bar-shaped, horizontal transversal arm (23) extending away from the same, the shaft and arm being permanently connected to each other. A first perforated disk having a plurality of openings is permanently mounted to the shaft, the perforated disk surrounding the shaft in a flange-like manner. At least one first mounting device is provided on the shaft at a distance to the perforated disk for mounting a fall-protection means. The transversal arm has on one end thereof a first connecting head, and on the second end thereof facing away from the first end a second connecting head by means of which the transversal arm can be secured on a second vertical shaft via a second perforated disk equipped with a plurality of openings by forming a vertical frame. Each connecting head is delimited by side wall parts having vertical exterior surfaces that are tapered toward a centre n a wedge-like manner. Each connecting head has an upper head part and a lower head part. A slot that is open toward the respectively associated shaft and toward the vertical outer surfaces is provided between the upper head part and the lower head part. Each connecting head is mounted with the slot thereof on the associated perforated disk at least partially protruding into the same. Each connecting head is connected to the associated shaft and preferably also permanently connected to the associated perforated disk by means of welding.</p> |
