US 11,926,514 B1
Forklift
Eric O'Keeffe, Monaghan (IE); and Manuel Schwaighofer, Henndorf am Wallersee (AT)
Assigned to PALFINGER AG, Bergheim bei Salzburg (AT)
Filed by Palfinger AG, Bergheim bei Salzburg (AT)
Filed on Aug. 14, 2023, as Appl. No. 18/233,621.
Claims priority of application No. 22190535 (EP), filed on Aug. 16, 2022.
Int. Cl. B66F 9/08 (2006.01); B66F 9/12 (2006.01)
CPC B66F 9/082 (2013.01) [B66F 9/125 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A forklift comprising:
a chassis;
a mast hydraulically tiltable relative to the chassis in a primary tilting motion between a substantially upright position and an inclined position;
a fork carriage for mounting forks for supporting a load, the fork carriage being hydraulically tiltable relative to the mast in a secondary tilting motion between a position in which the fork carriage is substantially aligned with the mast and a position in which the fork carriage is inclined relative to the mast; and
a hydraulic system having an operating element to allow a user to control the primary tilting motion and the secondary tilting motion;
wherein the hydraulic system is configured to carry out a hydraulic sequence control of the primary tilting motion and the secondary tilting motion,
wherein the chassis, the mast, the fork carriage, and the hydraulic system are configured such that, for picking up a load, upon actuation of one operating element, the secondary tilting motion from the position in which the fork carriage is substantially aligned with the mast to the position in which the fork carriage is inclined relative to the mast is achieved before the primary tilting motion from the substantially upright position to the inclined position, and
wherein the chassis, the mast, the fork carriage, and the hydraulic system are configured such that, for setting down a load, upon actuation of one operating element, the secondary tilting motion from the position in which the fork carriage is inclined relative to the mast to the position in which the fork carriage is substantially aligned with the mast is achieved before the primary tilting motion from the inclined position to the substantially upright position, and the primary tilting motion from the inclined position to the substantially upright position is hydraulically locked until the fork carriage is substantially aligned with the mast.