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1. WO2022008813 - LOAD-HANDLING VEHICLE

Publication Number WO/2022/008813
Publication Date 13.01.2022
International Application No. PCT/FR2021/051105
International Filing Date 18.06.2021
IPC
B66F 9/065 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
FHOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
9Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
06movable, with their loads, on wheels or the like, e.g. fork-lift trucks
065non-masted
B66F 9/22 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
66HOISTING; LIFTING; HAULING
FHOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
9Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
06movable, with their loads, on wheels or the like, e.g. fork-lift trucks
075Constructional features or details
20Means for actuating or controlling masts, platforms, or forks
22Hydraulic devices or systems
F15B 11/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11Servomotor systems without provision for follow-up action
02Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
Applicants
  • MANITOU BF [FR]/[FR]
Inventors
  • BOUYSSOUX, François
Agents
  • GODINEAU, Valérie
  • DUTREIX, Hugues
Priority Data
FR200717407.07.2020FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) LOAD-HANDLING VEHICLE
(FR) ENGIN DE MANUTENTION DE CHARGE
Abstract
(EN) Load-handling vehicle comprising: - a load-handling member, - a jack (4) for lifting the load-handling member, comprising a lifting chamber (5) and a lowering chamber (6), - a fluid source (7), - a first fluid connection (8) from the lifting chamber (5) to the source (7), - a second fluid connection (9) from the lowering chamber (6) to the source (7), - the first connection (8) comprising a safety valve (10) that is open in the direction of the fluid source (7) towards the lifting chamber (5), and that is normally closed in the direction of the lifting chamber (5) towards the fluid source (7). A valve (11) arranged on the second link (9) is sensitive to the pressure of the portion of the first link (8) extending between the valve (10) and the source (7), and a unidirectional fluid circulation line (12), which can be closed according to the pressure weighing on the portion of the second fluid connection (9) between the valve (11) and the source (7), connects the first and second connections (8, 9).
(FR) Engin de manutention de charge comprenant : - un organe de manutention de charge, - un vérin (4) de levage dudit l'organe de manutention comprenant une chambre de levage (5) et une chambre d'abaissement (6), - une source (7) de fluide, - une première liaison (8) fluidique de la chambre de levage (5) à ladite source (7), - une deuxième liaison (9) fluidique de la chambre d'abaissement (6) à ladite source (7), - la première liaison (8) comprenant un clapet (10) de sécurité ouvert dans le sens source (7) de fluide vers chambre de levage (5), et normalement fermé dans le sens chambre de levage (5) vers source (7) de fluide. Une valve (11) disposée sur la deuxième liaison (9) est sensible à la pression de la portion de la première liaison (8) s'étendant entre le clapet (10) et la source (7) et une ligne (12) de circulation de fluide unidirectionnelle obturable en fonction de la pression régnant sur la portion de la deuxième liaison (9) fluidique entre la valve (11) et la source (7) relie les première et deuxième liaisons (8, 9).
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