Linear actuator

A groove (G) is provided to the rear of an inner wall (S) of a cylinder (10). A locking ram (50) capable of freely sliding in a radial direction and a cam rod (40) having a profile changing with a transition from the rear to the front from a small diameter part to a large diameter part are provided...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SATO, TETSUJI, YAMANOUCHI, HIROSHI, TADA, KATSUTOSHI, OONO, MASARU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AEROPLANES AIRCRAFT AVIATION BLASTING COSMONAUTICS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HELICOPTERS HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A groove (G) is provided to the rear of an inner wall (S) of a cylinder (10). A locking ram (50) capable of freely sliding in a radial direction and a cam rod (40) having a profile changing with a transition from the rear to the front from a small diameter part to a large diameter part are provided at a piston (20). The inner end of the locking ram (50) makes contact with the profile, and the cam rod (40) is urged to the rear by the spring (60), so that the cam rod (40) can be pushed to the front by a push rod (70). The piston (20) can therefore be locked with a simple structure, and it is possible to provide a linear actuator (1) where locking can be released with a straightforward operation even when a pressurized oil source fails.