SMC Co.

Geumcheon Gu, South Korea
Geumcheon Gu, South Korea
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Patent
SMC Corporation | Date: 2017-07-19

A linear guide device (10A) constituting an actuator (12) is provided with: a base section (20); a slider (26) that is slidably provided to the base section (20); and guide sections (28a, 28b) that are disposed between the base section (20) and the slider (26) in a state wherein the guide sections are extended in the sliding direction of the slider (26). DLC films (92a, 92b) are formed on the guide sections (28a, 28b), and the guide sections (28a, 28b) are locked to the slider (26) such that the guide sections can slide in a state wherein the DLC films (92a, 92b) are applying a predetermined preload with respect to the base section (20).


Patent
SMC Corporation | Date: 2017-07-19

A piston rod (18) and a rod cover (22) which constitute this hydraulic cylinder (10) are configured from aluminum or an aluminum alloy. An alumite coating film (58) is formed on at least a part of the inner wall surface of the rod cover (22) that constitutes a rod insertion hole (20), and a diamond-like carbon coating film (42) is formed on the outer wall surface of the piston rod (18), said diamond-like carbon coating film (42) being in sliding contact with the alumite coating film (58).


Patent
SMC Corporation | Date: 2017-05-31

An electric actuator (10) such that a nut (52) threadedly engaged with a sliding screw shaft (18) is displaced along an axial direction under the operation of a motor (12), the sliding screw shaft (18) being made of a light metal or light metal alloy. A diamond-like carbon film (50, 60) is formed on at least either a portion of screw threads (58) of the nut (52) that is located at least within three threads from a starting end in the axial direction, or screw threads (48) of the sliding screw shaft (18).


Patent
Smc Corporation | Date: 2016-11-15

A position detecting sensor is mounted in a sensor attachment groove formed in a cylinder device and having a wide portion and a narrow portion. Mounting members each include a mounting member main body positioned in the wide portion having a width dimension larger than a groove width of the narrow portion, and an extension extending from the mounting member main body and positioned in the narrow portion. The housing and the mounting members are connected by connecting bolts, whereby a portion of the cylinder device is retained between the housing and the mounting members.


Patent
Smc Corporation | Date: 2016-11-15

A position detecting sensor is mounted in a sensor attachment groove of a cylinder device. The sensor attachment groove includes a wide portion on the side of a groove bottom surface, and a narrow portion on the side of a side surface of the cylinder device. The position detecting sensor includes a mounting member having a width dimension larger than a groove width of the narrow portion. The mounting member includes a first engagement part and a second engagement part, which are flexible and are arranged in confronting relation, opening with a gap mutually therebetween in a widthwise direction of the sensor attachment groove.


Patent
Smc Corporation | Date: 2016-06-10

A pressure sensor includes a ceramic sensor that is accommodated between a body and a holder. On an end surface of the sensor, plural resistive bodies are printed and fired in a straight line using a thick-film resistive paste material by screen printing.


Patent
Smc Corporation | Date: 2016-06-10

A pressure sensor is equipped with a body including a fluid passage in the interior thereof, a holder connected to one end of the body, and a ceramic sensor accommodated in the interior of the holder. Plural protrusions are disposed on an outer edge portion of an end surface of the sensor, which is pressed by the holder. In addition, when the holder is fastened with respect to the body, in a state in which a pressing portion of the holder abuts against the protrusions, a fastening force is applied in an axial direction, and the sensor is fixed.


Patent
SMC Corporation | Date: 2017-08-16

A pilot check valve (10) according to the present invention comprises: a fluid channel body (16); a moveable body (85) that moves in an axial direction under the effects of pilot pressure; a packing (20) comprising a lip portion (62) that is displaceable, integrally with the moveable body (85), between a valve close position and a valve open position; and a detector (25) for detecting the position of the moveable body (85). The packing (20), in the valve close position, allows the flow of an operating liquid from a first port (12) side of the fluid channel body (16) to a second port (14) side and prevents the flow of the operating liquid from the second port (14) side to the first port (12) side, and in the valve open position, connects the first port (12) and the second port (14). (Fig. 1)


Patent
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.


Patent
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.

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