METHOD FOR CLOSING A HYDRAULIC PNEUMATIC AND/OR OLEOPNEUMATIC CYLINDER AND MEANS FOR IMPLEMENTING THEREOF

Method for manufacturing a jack or hydraulic, pneumatic and/or olepneumatic cylinder of the kind comprising a tubular cylindrical body (4) at the ends thereof a bottom (1) and a head (5) are fastened, inside thereof a piston (2 ) slides integral with a rod (3), characterized in that in order to fast...

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Bibliographische Detailangaben
Hauptverfasser:	CANDELIERI, TOMMASO, ROVINA, GIOVANNI, CARCAGNI, DONATO
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CYLINDERS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PISTONS PUNCHING METAL SEALINGS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	Method for manufacturing a jack or hydraulic, pneumatic and/or olepneumatic cylinder of the kind comprising a tubular cylindrical body (4) at the ends thereof a bottom (1) and a head (5) are fastened, inside thereof a piston (2 ) slides integral with a rod (3), characterized in that in order to fasten in an irremovable way the head (5) and the bottom (1) to the tubular body (4) of t he jack without threading and/or welding procedures, it provides implementing a t the end of the tubular body a controlled plastic deformation extended to the whole thickness of the tubular body itself, apt to locally deform the ends thereof by generating on each of them at least a circumferential ring radial ly projecting inwards so as to insert in at least a specific groove (7) arrange d on the bottom (1) and on the head (5) inserted in the tube itself, respectively, so as to lock them in sito. Said plastic deformation guarantee s the mechanical seal of the coupling between tube and bottom and tube and hea d.