초록 ▼

The invention concerns a lift truck with telescopic hoisting arm (2) mounted on a chassis carrying a front axle and a rear axle, in which the telescopic arm is articulated on the truck by means of a variable quadrilateral (A, B, C, D) having a tie rod (23) and an auxiliary arm (24), characterized in

The invention concerns a lift truck with telescopic hoisting arm (2) mounted on a chassis carrying a front axle and a rear axle, in which the telescopic arm is articulated on the truck by means of a variable quadrilateral (A, B, C, D) having a tie rod (23) and an auxiliary arm (24), characterized in that: the tie rod (23) is articulated on the one hand to the chassis (1) at a point (D) situated substantially above the front axle (10) and on the other hand to the telescopic arm (2) at a point (A) which, in low position of the arm, is substantially above the rear axle (11), the auxiliary arm (24) is articulated on the one hand to the chassis (1) of the truck substantially at the geometric center (C) of the chassis and on the other hand to the telescopic arm (2) at a point (B) situated in back of point (A), and in that, in low position, the telescopic arm (2) is entirely situated below points (A) and (B) of the quadrilateral and rests on the auxiliary arm (24) in a practially horizontal position whereas in high position the auxiliary arm (24) is in a substantially vertical position.

대표청구항 ▼

A lift truck comprising a telescopic hoisting arm mounted on a chassis carrying a front axle and a rear axle, in which the telescopic arm is articulated on the truck for movement between a low position and a high position by means forming a linkage of variable quadrilateral form including a tie rod

A lift truck comprising a telescopic hoisting arm mounted on a chassis carrying a front axle and a rear axle, in which the telescopic arm is articulated on the truck for movement between a low position and a high position by means forming a linkage of variable quadrilateral form including a tie rod and an auxiliary arm, the tie rod is articulated at one end to the chassis at a lower hinge point situated substantially above the front axle and at the other end to the telescopic arm at a first point which, in the low position of the arm, is substantially above the rear axle, the auxiliary arm is articulated at one end to the chassis substantially at its geometric center and at the other end to the telescopic arm at a second point in back of the first point, in the low position, the telescopic arm is entirely situated below the first and second points of the quadrilateral and rests on the auxiliary arm in a substantially horizontal position while in the high position the auxiliary arm is in a substantially vertically position.