Vertically adjustable fifth wheel

Details Vertically adjustable fifth wheel Vertically adjustable fifth wheel

B - Operations, Transporting

62

D

B62D 53/08 (2006.01)

Patent

CA 2230803

The present invention is directed to a vertically adjustable fifth wheel for semimounted trailers comprising a trailer plate and a vertically adjustable underframe which supports the trailer plate on the chassis of a tractor unit. The underframe comprises at least one lever arrangement (10) consisting of two pivotably connected levers (12 14) of which the first (12) is pivotably connected with the chassis in a first, bottom axle (16), and pivotably connected with the centre portion of the second lever (14) in a second, top axle (18), with the second lever (14) being essentially twice the length of the first lever and pivotably and horizontally displaceably connected with the chassis in a first, bottom axle (20), and pivotably connected with the trailer plate in a second, top axle (18).

Cette invention concerne une sellette d'attelage réglable en hauteur pour semi-remorques formée d'une plaque montée sur un bâti de réglage en hauteur fixé au châssis du tracteur. Ce bâti comporte au moins un mécanisme à levier (10) composé de deux bras (12, 14) articulés l'un à l'autre, le premier bras (12) étant articulé au châssis au moyen d'un premier axe (16) et au milieu du second bras (14) au moyen d'un autre axe (18), ledit second bras (14), qui fait en longueur sensiblement le double du premier bras, étant articulé au châssis au moyen d'un axe de pivotement horizontal (20) et à la plaque susmentionnée par un second axe de pivotement (18)

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