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1. (WO1998049451) SHOCK-PROOF HYDRAULIC CYLINDER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049451 International Application No.: PCT/EP1998/002408
Publication Date: 05.11.1998 International Filing Date: 23.04.1998
Chapter 2 Demand Filed: 16.09.1998
IPC:
B66F 9/22 (2006.01) ,F15B 15/22 (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
9
Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
06
movable, with their loads, on wheels or the like, e.g. fork-lift trucks
075
Constructional features or details
20
Means for actuating or controlling masts, platforms, or forks
22
Hydraulic devices or systems
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
22
for accelerating or decelerating the stroke
Applicants:
STILL GMBH [DE/DE]; Berzeliusstrasse 10 D-22113 Hamburg, DE (AT, BE, BR, CH, CY, CZ, DE, DK, ES, FI, FR, GB, GR, IE, IT, JP, KR, LU, MC, NL, PT, SE)
SCHÖNEWALD, Peter [DE/DE]; DE (UsOnly)
BAERWOLFF, Christian [DE/DE]; DE (UsOnly)
GAFFKE, Heinz [DE/DE]; DE (UsOnly)
Inventors:
SCHÖNEWALD, Peter; DE
BAERWOLFF, Christian; DE
GAFFKE, Heinz; DE
Priority Data:
297 07 639.628.04.1997DE
Title (DE) HYDRAULISCHER ZYLINDER MIT STOSSSICHERUNG
(EN) SHOCK-PROOF HYDRAULIC CYLINDER
(FR) CYLINDRE HYDRAULIQUE A PROTECTION ANTICHOC
Abstract:
(DE) Die Erfindung betrifft einen hydraulischen Zylinder mit Stoßsicherung, aufweisend ein Zylindergehäuse (1), in dem ein über eine Kolbenstange (10) angetriebener Kolben (4) axial verschiebbar angeordnet ist, sowie ggf. einen hohlzylindrischen Dämpfungskolben (11). Mittels unterschiedlicher Ausführungsformen wird eine ein- oder beidseitige Endlagendämpfung realisiert. Kolbenstange (10), Kolben (4) und Dämpfungskolben (11) können hohlzylindrisch ausgebildet sein.
(EN) The invention relates to a shock-proof hydraulic cylinder comprising a casing (1) inside which a piston is axially driven on a piston rod (10), and possibly a buffer piston in the form of a hollow cylinder (11). Owing to various embodiments, a damping effect can be obtained in an extreme position either on one or both sides. The piston rod (10), the pistons (4) and the buffer pistons (11) can have the form of hollow cylinders.
(FR) La présente invention concerne un cylindre hydraulique à protection antichoc, présentant un carter (1) dans lequel est installé un piston axialement mobile sur une tige de piston (10), et éventuellement un piston amortisseur en forme de cylindre creux (11). Grâce à différentes variantes, on obtient un amortissement en position extrême soit d'un côté soit des deux côtés. La tige de piston (10), les pistons (4) et les pistons amortisseurs (11) peuvent être conçus en forme de cylindres creux.
Designated States: BR, CZ, JP, KR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP1002198US6283008JP2001522439