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1. (WO1987003655) HYDRAULIC CYLINDER-PISTON UNIT PROVIDED WITH A MECHANICAL SAFETY DEVICE, PARTICULARLY FOR PANTOGRAPH TYPE MOTOR VEHICLE LIFTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1987/003655 International Application No.: PCT/EP1986/000696
Publication Date: 18.06.1987 International Filing Date: 02.12.1986
IPC:
B66F 3/30 (2006.01) ,B66F 7/08 (2006.01) ,F15B 15/26 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
F
HOISTING, 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
3
Devices, e.g. jacks, adapted for uninterrupted lifting of loads
24
fluid-pressure operated
25
Constructional features
30
Positive brakes or locks
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
F
HOISTING, 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
7
Lifting frames, e.g. for lifting vehicles; Platform lifts
06
with platforms supported by levers for vertical movement
08
hydraulically or pneumatically operated
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
15
Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
20
Other details
26
Locking mechanisms
Applicants:
ROSSATO, Eride [IT/IT]; IT
Inventors:
ROSSATO, Eride; IT
Agent:
PIOVESANA, Paolo; Corso del Popolo, 70 I-30172 Mestre, IT
Priority Data:
84159 A/8505.12.1985IT
Title (EN) HYDRAULIC CYLINDER-PISTON UNIT PROVIDED WITH A MECHANICAL SAFETY DEVICE, PARTICULARLY FOR PANTOGRAPH TYPE MOTOR VEHICLE LIFTS
(FR) ENSEMBLE HYDRAULIQUE CYLINDRE-PISTON POURVU D'UN DISPOSITIF MECANIQUE DE SECURITE, NOTAMMENT POUR ELEVATEURS DE VEHICULES A MOTEUR DU TYPE PANTOGRAPHE
Abstract:
(EN) A hydraulic cylinder-piston unit provided with a mechanical safety device, particularly for motor vehicle lifts of pantograph type and comprising a cylinder (1) in which there slides a piston (9) provided with a rod (4) emerging from an endpiece (3) of said cylinder (1), and comprising inside the cylinder (1) a portion (10) provided with toothing extending along the axis of said cylinder and cooperating with at least one deactivatable stop member (17) which during the elongation stage of said cylinder-piston unit moves relative to said toothed portion (10) by yielding elastically in its passage from one tooth to the next, whereas during the retraction stage it engages in the facing notch (11) defined by two successive teeth, to thus form the mechanical safety stop.
(FR) L'ensemble ci-décrit comporte un cylindre (1) dans lequel coulisse un piston (9) pourvu d'une bielle (4) sortant d'une pièce d'extrémité (3) dudit cylindre (1). A l'intérieur de ce dernier, une partie (10) est pourvue d'une denture s'étendant le long de l'axe dudit cylindre et coopérant avec au moins un organe de butée (17) pouvant être désactivé, laquelle butée, au cours de la phase d'allongement dudit ensemble cylindre-piston, se déplace par rapport à ladite portion dentée (10) en se déformant élastiquement lors de son passage d'une dent à l'autre, tandis que pendant la phase de rétraction, elle s'engage dans l'encoche (11) en regard définie par deux dents successives, pour former ainsi la butée mécanique de sécurité.
Designated States: AU, BB, BG, BR, DK, FI, HU, JP, KP, KR, LK, MC, MG, MW, NO, RO, SD, SU, US
European Patent Office (AT, BE, CH, DE, FR, GB, IT, LU, NL, SE)
African Intellectual Property Organization (CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0224914EP0293368US5205203AU1987068313