SMC Corporation | Date: 2016-12-14
A number n of Hall elements of a position detecting device output analog detection signals responsive to magnetism from a magnet of a piston. A number n of AD converters carry out analog to digital conversion to convert the analog detection signals into digital detection signals. A ladder circuit receives, as an n-bit digital signal, the digital detection signals output from a number n of magnetic detectors, and performs digital to analog conversion thereof into a single analog output signal. A control IC detects an approximate position of the piston on the basis of the single analog output signal that is input thereto.
SMC Corporation | Date: 2016-05-16
A pressure switch is equipped with a pressure sensor, a housing that houses the pressure sensor, an annular seal member arranged in a hole of the housing and which is interposed between the pressure sensor and the housing, and a pressing member that is fixed to the housing. The pressing member includes a base section that faces the seal member, and engagement arms that extend from the base section, are elastically deformable, and engage with the housing.
SMC Corporation | Date: 2016-04-15
A flow passage switching unit includes a valve body in which plural ports are formed, a spool arranged slidably in axial directions in the interior of the valve body, a spool drive unit for driving the spool in an A direction, a biasing mechanism that is configured to bias the spool elastically in the interior of the valve body, and a piston section that exerts a force on the spool in a B direction based on the pressure of a first output port.
Smc Corporation | Date: 2016-04-19
A flow passage unit of a switching valve includes an energy-saving valve mechanism provided in a second flow passage of a flow passage body. The energy-saving valve mechanism has a movable body including a piston section and a valve member, and an elastic member that biases the movable body elastically. At a time that compressed air is supplied to the second flow passage, when a force that acts on the piston section based on the pressure of a first flow passage becomes smaller than a biasing force of the elastic member, due to the biasing force of the elastic member, the movable body is moved to a valve-closed position for blocking the second flow passage.
Smc Corporation | Date: 2016-02-25
In a joint mechanism as a pipe joint, an indicator ring is disposed between an end of a tightening cap and an outer wall portion of a body. The indicator ring is made up from a flat section that abuts against the body, an inclined section on an outer circumferential side of the flat section, and a protrusion formed on an outer edge portion of the inclined section. The protrusion is formed in parallel along an outer circumferential surface of the tightening cap. When the tube is connected, the inclined section is pressed by the end of the tightening cap, whereby the inclined section becomes substantially coplanar with the flat section. Concurrently, the protrusion projects toward an outer circumferential side of the inclined section.
SMC Corporation | Date: 2016-06-06
A chuck apparatus grips a workpiece by a gripping section having a pair of chuck members. The chuck apparatus is equipped with a cover member and pressing members. The cover member includes insertion holes through which fingers of the chuck members are inserted, and seal members that surround the insertion holes and abut against the fingers. The cover member is attached to a body so as to cover base portions of the chuck members, and is elastically deformable so as to follow displacement of the chuck members. The pressing members press the seal members against the fingers.
Smc Corporation | Date: 2016-02-09
A measurement flow path is formed in a detector that makes up a thermal type flow sensor. A temperature sensor is disposed on an upstream side, and a heater is disposed on a downstream side in a fluid flow direction of the measurement flow path. Furthermore, a heat transfer preventing wall is disposed between the temperature sensor and the heater. Preferably, a rectifying means such as an orifice or the like is disposed on the downstream side of the heat transfer preventing wall, and between the temperature sensor and the heater.
Smc Corporation | Date: 2016-02-01
To provide a gate valve such that two connected surfaces perpendicular to each other of a valve plate housing frame can be connected to two side walls perpendicular to each other of a chamber in such a manner that the connected surfaces are in contact with the side surfaces. When screwing a fixation screw perpendicularly into a screw hole formed in one chamber wall of a chamber through a screw insertion hole formed in one frame wall of a valve plate housing frame of a gate valve, and tightening the fixation screw to press and fix the frame wall against and to the first chamber wall, a thrust force in a direction perpendicular to the axis of the fixation screw is generated in the valve plate housing frame by a cam mechanism formed on the fixation screw and in the screw insertion hole, and the other frame wall of the valve plate housing frame is pressed against and fixed to the other chamber wall of the chamber by the thrust force.
Smc Corporation | Date: 2016-02-02
An electrode unit formed by mounting a discharge electrode in a first housing, and a power supply control unit formed by locating a high voltage generation circuit that outputs a pulsating high voltage to the electrode unit in a second housing are electrically connected via a shielded cable, and a capacitor is connected to a ground line electrically connecting between a shield layer of the shielded cable and the ground.
Smc Corporation | Date: 2016-05-26
A chuck apparatus includes a first rotating shaft provided with a first gripping member, a second rotating shaft provided with a second gripping member, and a power transmission mechanism configured to convert reciprocating movement of a piston unit into rotational movement of the first rotating shaft and the second rotating shaft. The first rotating shaft and the second rotating shaft are arranged side by side in a direction of displacement of the piston unit.