A landing gear for semitrailers has a leg the upper end of which is connected with the semitrailer and the lower end of which is connected with a ground contacting member by a load transmitting device which can turn relative to the leg about a horizontal axis back and forth to opposite sides of a neutral portion and has a part cylindrical shell which can roll on a skid between two upstranding sidewalls of the ground contacting member. The axial ends of the shell are connected with end walls which are inwardly adjacent the sidewalls and carry followers serving to track V-shaped cam slots in the adjacent sidewalls. The load transmitting device is biased to the neutral position by two leaf springs which are located at opposite sides of the pivot axis for the load transmitting device and each of which is separably connected to the leg as well as to the skid. The springs are accessible, at least in the neutral position of the load transmitting device, and extend through a circumferentially extending window in the shell. The load transmitting device and the ground contacting member can be made of metallic sheet stock.

Landing gear for semitrailers and the like

The invention relates to a swivel base 14 to support a supporting or lifting device 10, in particular a semitrailer support or the like, with a support tube 12 for pivotal support on a pivot axis 13 of the pivoting foot, wherein the swivel comprises a swivel unit with at least one swivel cheek 20 at a displacement of the pivot axis performs a rolling movement with a Abrollsteg, wherein the Abrollsteg is formed as an integral component of the swivel cheek 20th

Swivel foot for the ground support of a lifting device

A support device for a semitrailer comprises a roller segment (1), which is pivotably mounted on a support leg and a foot element (2) comprising a foot plate (12) and vertically projecting side walls (13). The roller segment (1) can roll along on the foot plate (12). A spring arrangement effects resetting of the pivotable roller segment (1) relative to the foot plate (12). A rod (15) passes through side walls (19) of the roller segment (1) and openings (14) in the side walls (13). The roller segment (1) forms a hollow cylindrical sector with part-cylindrical envelope (8), which has a slot (18) extending in its circumferential direction. Two coil springs (19) serve as the spring arrangement and extend through the slot (18). The springs are respectively fastened to the front and the rear of the support leg and of the foot plate (12).

Support device with movable foot element

Pied d'appui pour un dispositif d'appui telescopique pour remorque a sellette.

A semi-trailer of an articulated lorry has rear suspension with trailing arms controlled by air bags. The brakes lock wheels to axles 11 that are fixed to the trailing arms. If the height of the suspension then changes, the wheels may roll along the ground, causing the whole semi-trailer to move forwards or backwards. Landing gear at the front of the semi-trailer has sectional arcuate feet 16 than then roll on the ground, taking up the movement and avoiding high horizontal stresses on the landing gear.

Semi-trailer landing gear

UNE SEMI-REMORQUE D'UN CAMION ARTICULE COMPORTE UNE SUSPENSION ARRIERE 3 AVEC DES BRAS TRAINANTS 8 COMMANDES PAR DES SACS A AIR 10. LES FREINS BLOQUENT LES ROUES 14 SUR DES ESSIEUX 11 QUI SONT FIXES AUX BRAS TRAINANTS 8. SI LA HAUTEUR DE LA SUSPENSION CHANGE ALORS, LES ROUES 14 PEUVENT ROULER SUR LE SOL, PROVOQUANT LE DEPLACEMENT VERS L'AVANT OU VERS L'ARRIERE DE L'ENSEMBLE DE LA SEMI-REMORQUE. LA BEQUILLE SITUEE A L'AVANT DE LA SEMI-REMORQUE COMPORTE DES PIEDS, QUI ROULENT ALORS SUR LE SOL, RATTRAPANT LE MOUVEMENT ET EMPECHANT QUE DES CONTRAINTES HORIZONTALES ELEVEES N'AGISSENT SUR LA BEQUILLE.

Neil John Robinson

Papers

Semi-trailer landing gear

Perfectionnements apportes a des camions articules, notamment a des semi-remorques