초록 ▼

A fluid operated actuator includes a housing having a longitudinally extending aperture with open ends. First and second end caps are attached to opposite ends of the housing forming a chamber within the housing. A longitudinally reciprocal piston and attached rod are disposed within the chamber wit

A fluid operated actuator includes a housing having a longitudinally extending aperture with open ends. First and second end caps are attached to opposite ends of the housing forming a chamber within the housing. A longitudinally reciprocal piston and attached rod are disposed within the chamber with the rod extending externally of the chamber through one of the end caps. The piston is adapted for reciprocal movement from one end limit of travel adjacent the first end cap to a second end limit of travel adjacent the second end cap. At least one of the first and second end caps includes a longitudinal aperture in communication with the chamber and a transverse aperture communicating between the longitudinal aperture and an exterior of the end cap. A sleeve is connected to the rod adjacent the piston and is engageable within the longitudinal aperture of the end cap when the piston is in the end limit of travel. A sensor is sealingly engaged within the transverse aperture of the end cap for sensing the piston in the end limit of travel. A retaining ring secures the sensor within the transverse aperture, while allowing pull-out removal of the sensor when the retaining ring is removed. The housing includes a recessed portion formed on an external surface defining two shoulders generally parallel to the end caps. Each shoulder has an aperture extending outwardly toward the end of the housing adjacent the end caps. Bolts are engaged through the aperture in the shoulders for threadingly securing the end cap to the housing, such that the end cap is removable without dismounting the fluid operated actuator.

대표청구항 ▼

A fluid operated actuator comprising: a housing member having a longitudinally extending aperture with open ends; first and second end caps for attachment to opposite ends of the housing forming a chamber within the housing; means for sealingly connecting the first and second end caps to the housing

A fluid operated actuator comprising: a housing member having a longitudinally extending aperture with open ends; first and second end caps for attachment to opposite ends of the housing forming a chamber within the housing; means for sealingly connecting the first and second end caps to the housing; a longitudinally reciprocal piston member and attached rod disposed within the chamber with the rod extending externally of the chamber through one of the end caps, the piston member adapted for reciprocal movement from one end limit of travel to a second end limit of travel; at least one of the first and second end caps having a longitudinal aperture in communication with the chamber and a transverse aperture communicating between the longitudinal aperture and an exterior of the end cap, the transverse aperture including an enlarged portion adjacent the exterior of the end cap; enlarged shoulder means carried by the rod adjacent the piston member and engageable within the longitudinal aperture of the end cap when the piston member is in one of the end limits of travel; sensor means sealingly engaged within the transverse aperture of the end cap for sensing the piston member in the end limit of travel, wherein a substantial portion of the sensor means is received within the enlarged portion of the transverse aperture such that an exterior end of the sensor means is generally flush with the exterior of the end cap providing a low profile between the end cap and the sensor means; and retaining ring means for securing the sensor means within the transverse aperture while allowing pull-out removal of the sensor means when the retaining ring means is removed.