Seilklemme für Luftseilbahn

Kuppelbare Seilklemme Von Roll VR 101, Schwerkraft und Federkraft

Dating

1945

Persons

von Roll AG (von Roll'sche Eisenwerke AG, Giesserei Bern) (1823), Hersteller/in, archivalisch belegt

Description

Kuppelbare Seilklemme VR 101, Schwerkraft und Federkraft, der von Roll AG Beim Verlassen der Station wird die Klemme geschlossen und durch den Arretierhebel gegen ungewolltes Öffnen verriegelt. Mit dieser Klemme konnte die Geschwindigkeit auf 2.5 m/s erhöht werden. Weltweit wurden gegen 110 Anlagen mit diesem Klemmentyp ausgerüstet.

Signature / Inscription

Signatur / Beschriftung: Beschriftung: "3133C"

Object type

Object (three-dimensional)

Material / Technique

Metall, Kunststoff

Dimensions

zirka 60 x 60 x 20 cm

Inventory number

VHS-11791

Legend

VR 101, Von Roll, gravity/spring power grip, 1945 Birth of the detachable cable grip. On leaving the terminus, the grip is closed and secured against inadvertent opening by means of a locking lever. Use of this detachable grip allowed the speed of circulating cableways to rise to 9 km/h. More than 110 installations were equipped with this type of grip. The cable grip innovation The device attaching the chair or gondola to the cable is the central component of any detachable-grip cableway. The invention of a device capable of gripping as well as detaching itself from the propelling cable opened up a whole new world to the cableway industry. The concept has benefited mountain tourism as well as, more latterly, mass transit systems in cities. The first chairlifts featured chairs that were permanently clamped to the circulating cable, which made getting on and off at a constant speed of around 2 m/s something of a challenge. The detachable grip system allows the vehicle (chair or gondola) to be freed from the cable at the terminus and guides it onto a separate, propelling system travelling at less than 0.8 m/s. While rows of rubber tyre wheels slow the vehicle down, the otherwise free-hanging wheels of the cable grip mechanism run on their own rails in the terminus. When the vehicle's cable grip attaches itself back onto the circulating propelling cable, the vehicle returns to its considerably higher speed of between 4 and 8 m/s. The technology underpinning the detachable grip – now capable of exerting a pressure on the cable in excess of 600 kg – and the terminus circulation system have become increasingly sophisticated. The invention of the detachable grip quickly led to a boom in the chairlift segment. The circulating cableway system, to this day, owes its success as a transportation system to its key component – the detachable cable grip.