Patents Assigned to SMC Kabushiki Kaisha
  • ELECTRIC ACTUATOR
    Publication number: 20130174679
    Abstract: In a body of an electric actuator, dust collecting pipes are disposed as a pair along an axial direction of a hole portion of the body. The dust collecting pipes are connected respectively to negative pressure supply ports provided in an end block, and include plural first through fifth suction holes separated mutually along an axial direction of the dust collecting pipes. Distances between the first through fifth suction holes are formed so as to become smaller stepwise from one end side of the dust collection pipes, on the side of the negative pressure supply ports, to the other end side thereof.
    Type: Application
    Filed: November 29, 2012
    Publication date: July 11, 2013
    Applicant: SMC Kabushiki Kaisha
    Inventor: SMC Kabushiki Kaisha
  • Solenoid pump
    Patent number: 8480383
    Abstract: A solenoid pump is equipped with a housing formed therein with a fluid passage through which a fluid flows from an inlet port to an outlet port, and a movable member, which is displaced based on an excitation state of a solenoid section, for thereby opening and closing the fluid passage. The fluid passage includes an inlet side passage that communicates with the inlet port, an outlet side passage that communicates with the outlet port, and a pump chamber made up of a space in communication with the inlet side passage and the outlet side passage, and surrounded by the housing and an end portion of the movable member. Accompanying displacement thereof, the movable member opens and closes communication between the pump chamber and the outlet side passage.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: July 9, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Takamitsu Suzuki
  • Gate valve
    Patent number: 8474791
    Abstract: Roller insertion grooves are formed along the longitudinal direction of inner wall portions of side frames, which are provided in the interior of a housing that makes up a gate valve. Respective pairs of retaining rollers are inserted into the roller insertion grooves. A valve disk is tilted, such that in a valve closed state in which the valve disk is seated on a valve seat, a load imposed from a displacement block, which is connected to a valve rod and tiltably displaced thereby, is imposed on the retaining rollers, the load being borne by first and second pressure receiving bodies, which abut against the retaining rollers and are disposed on the side frames. The first and second pressure receiving bodies are formed from a material having a hardness greater than that of the side frames.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: July 2, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Hiroshi Ogawa, Takeshi Nishikawa, Jiro Ishibe
  • ELECTROMAGNETIC ACTUATOR
    Publication number: 20130162379
    Abstract: The electromagnetic actuator is a linear electromagnetic actuator in which the relative position between a slide table that supports permanent magnets thereon and a guide rail that supports a coil, which is arranged in confronting relation to the permanent magnets, is displaced by means of a thrust force generated by a current flowing through the coil. The coil is disposed on the guide rail through a low coercive force magnetizable material body, the coercive force of which is lower than a predetermined value. Consequently, generation of residual magnetization can be suppressed, and an influence on the thrust force caused by such residual magnetization can also be suppressed.
    Type: Application
    Filed: February 21, 2013
    Publication date: June 27, 2013
    Applicant: SMC Kabushiki Kaisha
    Inventor: SMC Kabushiki Kaisha
  • TOOTH-SKIPPING PREVENTION MECHANISM FOR DRIVING FORCE TRANSMISSION BELT
    Publication number: 20130150193
    Abstract: A tooth-skipping prevention mechanism includes a block, which is inserted displaceably into a first end block in an electric actuator. A cavity having a semicircular shape in cross section is formed in one end of the block facing toward an outer circumferential side of a drive pulley and recessed toward another end side of the block. In addition, the cavity is arranged at a predetermined distance with respect to an outer circumferential surface of a timing belt that is enmeshed with the drive pulley. When the timing belt is moved in a radial outward direction so as to separate away from the drive pulley, movement of the timing belt is restricted, whereby the enmeshed condition of the timing belt and the drive pulley is maintained.
    Type: Application
    Filed: February 28, 2012
    Publication date: June 13, 2013
    Applicant: SMC Kabushiki Kaisha
    Inventors: Yoshihiro FUKANO, Shoichi Makado, Masaki Imamura
  • PIPE JOINT
    Publication number: 20130147183
    Abstract: A pipe joint contains a body having a fluid passage in the interior thereof, a tightening cap screw-engaged with an end of the body for connecting a tube thereto, and an indicator ring interposed between a stopper of the body and an end of the tightening cap. The indicator ring is equipped with a flat section and an inclined section, which is inclined with respect to the flat section, and is formed with a smaller diameter than an outer circumferential surface of the tightening cap. When the tightening cap is screw-rotated to thereby connect the tube, as a result of the inclined section being pressed and deformed by movement of the tightening cap, the inclined section projects radially outward with respect to the outer circumferential surface of the tightening cap, whereby a tightened condition is visually confirmed by the outer edge of the indicator ring.
    Type: Application
    Filed: September 10, 2012
    Publication date: June 13, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Tadashi Uchino
  • PINCH VALVE
    Publication number: 20130119284
    Abstract: A pinch valve includes a spring disposed between a movable iron core of a solenoid and an end cover thereof, and which urges the movable iron core toward the side of a tube provided in a body. An elastic force of the spring is set to be smaller than a reactive force of the tube that is applied to a valve plug. In a non-excited state of the solenoid, the valve plug is pressed toward the solenoid by the reactive force of the tube, so as to enable a fluid to flow through a flow passage of the tube. Conversely, in an excited state of the solenoid, since an attractive force of the movable iron core toward the tube is added to the elastic force of the spring, the valve plug is pressed in opposition to the reactive force of the tube for thereby blocking the flow passage.
    Type: Application
    Filed: May 16, 2012
    Publication date: May 16, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro FUKANO, Shoichi Makado, Yasuhiro Ushijima
  • CHECK VALVE
    Publication number: 20130112302
    Abstract: A check valve includes a first body disposed on an upstream side, and a second body disposed on a downstream side and being connected to the first body. A valve plug is disposed displaceably in a communication chamber formed in the interior of the first body. A skirt, which urges a main body portion of the valve plug in a direction for seating the main body portion on a valve seat surface, is provided on the valve plug, such that the main body portion is seated on the valve seat surface by an elastic force of the skirt. In addition, by supplying a pressure fluid to the first body, the valve plug is displaced in opposition to the elastic force of the skirt, whereby the interior of the first body and the interior of the second body are placed in communication and the pressure fluid is allowed to flow there through.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 9, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventor: SMC KABUSHIKI KAISHA
  • SOLENOID VALVE
    Publication number: 20130099146
    Abstract: A solenoid valve. In a solenoid section forming part of the solenoid valve, a sleeve is provided on the inner circumferential side of a bobbin around which a coil is wound. This sleeve is formed from magnetic material and includes a cylindrical section and a flange section formed at a lower end of the cylindrical section. At an upper end of the cylindrical section, a tapered section is formed in which an outer circumferential face is recessed in the radially inward direction. The tapered section is arranged facing and in close contact with the outer circumferential face of a fixed core such that the magnetic flux density in the tapered section increases when the solenoid section is excited.
    Type: Application
    Filed: June 22, 2011
    Publication date: April 25, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro Fukano, Masami Yoshida, Takeshi Karibe
  • Non-contact transport apparatus
    Patent number: 8419094
    Abstract: A non-contact transport apparatus includes a housing and a plate which is fitted into a circular recess formed at a central portion in a lower surface of the housing. The housing is formed in an octagonal shape corresponding to the shape of a workpiece to be transported. In the plate, a plurality of nozzles are arranged radially at equal angular intervals. The nozzles include first nozzle grooves and second nozzle grooves having cross sectional areas that are determined in proportion to distances between a principal side of the housing and the nozzle and between an oblique side of the housing and the nozzle for making the flow rates of the pressure fluid through the first nozzle groove and the second nozzle groove different.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: April 16, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Taira Omiya, Katsuaki Takahashi, Koji Iida
  • Electromagnetic actuator
    Patent number: 8421564
    Abstract: The electromagnetic actuator is a linear electromagnetic actuator in which the relative position between a slide table that supports permanent magnets thereon and a guide rail that supports a coil, which is arranged in confronting relation to the permanent magnets, is displaced by means of a thrust force generated by a current flowing through the coil. The coil is disposed on the guide rail through a low coercive force magnetizable material body, the coercive force of which is lower than a predetermined value. Consequently, generation of residual magnetization can be suppressed, and an influence on the thrust force caused by such residual magnetization can also be suppressed.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: April 16, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Hisashi Yajima, Nobuhiro Fujiwara
  • VACUUM SUCTION APPARATUS
    Publication number: 20130082475
    Abstract: A vacuum suction apparatus is equipped with a body having a supply port, and a pad provided on a lower portion of the body to which a workpiece can be attracted under suction. The pad is constituted from a base plate accommodated in a space of the body, a flexible intermediate plate provided on a lower portion of the base plate, and a suction sheet body disposed on a lower portion of the intermediate plate and having a sheet that attracts the workpiece under suction. In addition, the base plate, the intermediate plate and the suction sheet body are stacked along an axial direction of the body. The rigidity of the base plate is highest, whereas the rigidities of the intermediate plate and the suction sheet body are lower in this order, and the flexibilities thereof are greater in this order from the base plate.
    Type: Application
    Filed: September 10, 2012
    Publication date: April 4, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Yoshihiro FUKANO, Shuzo Sakurai, Masahiko Someya
  • PRESSURE REDUCING APPARATUS
    Publication number: 20130074956
    Abstract: A pressure reducing apparatus includes a body being equipped with a first side port through which a pressure fluid is supplied and a second side port through which the pressure fluid having been reduced in pressure is discharged. Further, a feedback passage is formed, which establishes communication between the second side port and a third diaphragm chamber that faces toward a pilot valve. Additionally, a pressure fluid that flows through the second side port is introduced through the feedback passage into the third diaphragm chamber, whereby a third diaphragm is pressed upwardly against an elastic force of a second spring into equilibrium.
    Type: Application
    Filed: June 15, 2011
    Publication date: March 28, 2013
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Masayuki Okitsu, Naoki Iguma, Kenji Tsukamoto
  • Fluid pressure cylinder with trunnion support fitting
    Patent number: 8387515
    Abstract: A pair of trunnion support fittings is installed on a cylinder tube, and the trunnion support fittings have main fittings placed along vertical outer surfaces of the cylinder tube and also have fastening fittings connected to arm sections of the main fittings by screws. Installation projections formed on the fastening fittings are engaged with engagement grooves formed in lateral outer surfaces of the cylinder tube. Also, particle layers are formed on the trunnion support fittings and are in contact with the vertical outer surfaces and lateral outer surfaces of the cylinder tube.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: March 5, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Tetsuya Ikari, Makoto Yaegashi
  • Manifold made from amorphous resin
    Patent number: 8387663
    Abstract: A manifold comprises a base material section made from an amorphous resin, a solenoid valve section including a plurality of solenoid valves made up of valve bodies, and a coupling section including a plurality of pipe couplings. The overall surface of the base material section is covered in a surrounding fashion without pinholes by a protective film, which is a dense layer film made from a chemically stable material. The manifold is surrounded by a protective box as necessary.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: March 5, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Katsumi Iijima, Kouji Wada, Yasunori Yoshida, Yutaka Yoshida
  • Pump apparatus
    Patent number: 8382451
    Abstract: In a constant rate discharge pump, a rotary drive source is disposed on an end of a housing, and on the other end of the housing, a pump head is provided, having a pump chamber into which a fluid is drawn, and a filling chamber filled with an indirect medium. Further, a displacement mechanism having a displacement nut which is displaced under a driving action of the rotary drive source is disposed in the interior of the housing. A bellows is interposed between a tubular body connected to the displacement nut and a first block of the pump head, wherein the interior of the bellows also is filled with the indirect medium, which is made up from an incompressible fluid. Furthermore, a flexible diaphragm is disposed in the pump head between the fluid and the indirect medium.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: February 26, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Yoshihiro Fukano, Takamitsu Suzuki
  • FLUID PRESSURE CYLINDER
    Publication number: 20130032027
    Abstract: In a fluid pressure cylinder, a piston is displaced in an axial direction under the action of a pressure fluid. A circular protrusion, which projects toward the piston along an axial direction of the cylinder tube, is formed on an inner end surface of a collar member constituting part of the fluid pressure cylinder, a concavity, which can be fitted externally over the circular protrusion, is formed on the piston, and an annular groove is formed on an inner circumferential edge of an end plate. By the piston coming into contact with the end plate, a pressure receiving chamber is formed between the piston and the annular groove, together with an opening of a second port on an inner side of the cylinder tube being closed to a maximum of 90%.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 7, 2013
    Applicant: SMC Kabushiki Kaisha
    Inventors: Shun ORIHARA, Yasunaga Suzuki, Naoki Hoshi, Hiroyuki Asahara
  • Rodless cylinder
    Patent number: D678912
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 26, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventors: Takashi Abe, Soichi Sato
  • Fluid pressure cylinder with plate
    Patent number: D681163
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: April 30, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventor: Tsuyoshi Asaba
  • Fluid pressure cylinder with plate
    Patent number: D681164
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: April 30, 2013
    Assignee: SMC Kabushiki Kaisha
    Inventor: Tsuyoshi Asaba