Patents by Inventor Chiaki Fukui
Chiaki Fukui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11371538Abstract: A fluid pressure cylinder is provided with a cylinder tube having a sliding hole internally; a piston unit disposed along the sliding hole so as to be capable of moving back and forth, and a piston rod projected in the axial direction from the piston unit. The piston unit can shorten the axial dimension of a piston body by mounting a wear ring to an outer circumferential section of a ring-shaped magnet attached to an outer circumferential section of the piston body.Type: GrantFiled: March 8, 2019Date of Patent: June 28, 2022Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Tetsuya Ikari, Takeshi Seo
-
Publication number: 20210309888Abstract: A brittle adhesive sheet includes a film base material, and an adhesive layer provided at a first surface side of the film base material, wherein the film base material has a film base material main body formed of a polystyrene-based resin and a print receptive layer provided at a second surface side, opposite to a side of the film base material where the adhesive layer is provided, and the print receptive layer includes a polyester-based resin or an acrylic-based resin.Type: ApplicationFiled: September 19, 2019Publication date: October 7, 2021Inventors: Chiaki FUKUI, Tadahiro TOMINO
-
Publication number: 20210010494Abstract: A fluid pressure cylinder is provided with a cylinder tube having a sliding hole internally; a piston unit disposed along the sliding hole so as to be capable of moving back and forth, and a piston rod projected in the axial direction from the piston unit. The piston unit can shorten the axial dimension of a piston body by mounting a wear ring to an outer circumferential section of a ring-shaped magnet attached to an outer circumferential section of the piston body.Type: ApplicationFiled: March 8, 2019Publication date: January 14, 2021Applicant: SMC CORPORATIONInventors: Chiaki FUKUI, Tetsuya IKARI, Takeshi SEO
-
Patent number: 10800008Abstract: A clamp device is provided with a detection section which detects the pivotal position of a clamp arm. The detection section has: a cam section which is provided on a pivot shaft, includes a predetermined cam surface, and is formed so that the radial distance from the center of the pivot shaft to the cam surface varies circumferentially; and a proximity sensor which detects the position of the cam surface which varies as the pivot shaft pivots.Type: GrantFiled: November 18, 2015Date of Patent: October 13, 2020Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Takeshi Seo, Jiro Mandokoro, Koichi Katsumata
-
Patent number: 10744621Abstract: A clamp device is equipped with a clamp body, a piston rod, a link mechanism, a detection mechanism for detecting a state of rotary motion of a clamp arm, and a determination unit for determining whether a state of clamping exists. The detection mechanism includes a first proximity sensor, and a knuckle joint having a first sloped surface. The determination unit, on the basis of a comparison of an output signal from the first proximity sensor to a clamp threshold value, determines whether a state of clamping exists, and on the basis of a comparison to a clamping force generation threshold value, determines whether a state of generation of clamping force exists.Type: GrantFiled: January 5, 2016Date of Patent: August 18, 2020Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Takeshi Seo, Jiro Mandokoro, Koichi Katsumata
-
Patent number: 10677270Abstract: In an interior of a cylinder tube of a fluid pressure cylinder, a piston unit is provided, which is displaced along an axial direction under the supply of a pressure fluid. The piston unit includes a disk shaped plate body, which is connected to one end of a piston rod, and a ring body connected to an outer edge portion of the plate body. The plate body is connected to the piston rod by plural second rivets, which are punched in an axial direction with respect to the piston rod.Type: GrantFiled: June 1, 2016Date of Patent: June 9, 2020Assignee: SMC CORPORATIONInventors: Yasunaga Suzuki, Chiaki Fukui, Makoto Yaegashi
-
Patent number: 10670053Abstract: In a piston unit of a fluid pressure cylinder a plurality of magnets are disposed through holes provided in a ring body. The magnets are disposed in facing relation to detection sensors that are mounted on connecting rods, and are provided in the same quantity as the connecting rods. Further, a guide rod extending from a head cover to a rod cover is inserted through the interior of the ring body. When the piston unit is displaced along the cylinder tube, rotational displacement is restricted by the piston unit being displaced along the guide rod, whereby the magnets are retained to face toward the connecting rods at all times. Therefore, the position of the piston unit is detected by the detection sensors through the magnets.Type: GrantFiled: June 1, 2016Date of Patent: June 2, 2020Assignee: SMC CORPORATIONInventors: Yasunaga Suzuki, Chiaki Fukui, Makoto Yaegashi
-
Patent number: 10662981Abstract: On inner wall surfaces of a head cover and a rod cover of a fluid pressure cylinder, respective pluralities of first and second spigot pins are installed to project out from the inner wall surfaces. The first and second spigot pins are disposed on circumferences of a predetermined diameter that internally contact or inscribe the cylinder tube. Further, when the cylinder tube is assembled with respect to the head cover and the rod cover, by the flange members of the first and second spigot pins inscribing the inner circumferential surface thereof, the cylinder tube is positioned and assembled coaxially with respect to the centers of the head cover and the rod cover.Type: GrantFiled: June 1, 2016Date of Patent: May 26, 2020Assignee: SMC CORPORATIONInventors: Yasunaga Suzuki, Chiaki Fukui, Makoto Yaegashi
-
Patent number: 10661412Abstract: A clamp apparatus including two pairs of first and second clamp arms, which are supported rotatably with respect to a body and are disposed mutually in parallel. First and second cam members including respective cam surfaces are provided on ends of the first and second clamp arms. The first cam members are pressed by rollers upon lowering of a block body under a driving action of a first cylinder that makes up a drive unit. The first clamp arms are rotated to assume a clamped state. The second cam members are pressed by rollers upon lowering of a block body under a driving action of a second cylinder of the drive unit, whereby the second clamp arms are rotated to assume a clamped state.Type: GrantFiled: July 10, 2014Date of Patent: May 26, 2020Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
-
Patent number: 10662982Abstract: In a fluid pressure cylinder a piston unit, which is displaced along an axial direction under the supply of a pressure fluid, is disposed in an interior of a cylinder tube of the fluid pressure cylinder. The piston unit includes a disk shaped plate body connected to one end of a piston rod, and a ring body connected to an outer edge portion of the plate body. The ring body is connected together with the plate body by a plurality of third rivets that are punched in an axial direction with respect to the plate body.Type: GrantFiled: June 1, 2016Date of Patent: May 26, 2020Assignee: SMC CORPORATIONInventors: Yasunaga Suzuki, Chiaki Fukui, Makoto Yaegashi
-
Patent number: 10612570Abstract: In a fluid pressure cylinder, a piston unit, which is displaced along an axial direction under the supply of a pressure fluid, is disposed in the interior of a cylinder tube of the fluid pressure cylinder. The piston unit includes a disk shaped plate body connected to one end of a piston rod, and a ring body connected to an outer edge portion of the plate body. The plate body is formed from an elastically deformable metal material, and by the plate body becoming elastically deformed and flexing when the ring body of the piston unit abuts against the head cover or the rod cover, shocks applied with respect to the piston unit are buffered.Type: GrantFiled: June 1, 2016Date of Patent: April 7, 2020Assignee: SMC CORPORATIONInventors: Yasunaga Suzuki, Chiaki Fukui, Makoto Yaegashi
-
Patent number: 10605275Abstract: In an interior of a cylinder tube of a fluid pressure cylinder, a piston unit is displaced along an axial direction under the supply of a pressure fluid, and the piston unit is connected to one end of a piston rod. Further, a rod cover is disposed on another end of the cylinder tube, and in the center thereof, a cylindrical holder is provided that displaceably supports the piston rod. The holder is fixed integrally by a plurality of first rivets, in a state in which a flange member, which is expanded radially outward, abuts against an inner wall surface of the rod cover.Type: GrantFiled: June 1, 2016Date of Patent: March 31, 2020Assignee: SMC CORPORATIONInventors: Yasunaga Suzuki, Chiaki Fukui, Makoto Yaegashi
-
Patent number: 10549394Abstract: The present invention relates to a clamp device. The clamp device is provided with a driving force transmission mechanism, which transmits driving force from a drive unit to clamp arms. The driving force transmission mechanism converts the rectilinear movement of a piston rod of the drive unit into: a first operation, in which the clamp arms rotate while moving in directions toward or away from each other; and a second operation, in which the clamp arms move in parallel in directions toward or away from each other with gripping surfaces in a mutually parallel state.Type: GrantFiled: January 5, 2016Date of Patent: February 4, 2020Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Takeshi Seo
-
Patent number: 10543561Abstract: A welding gun includes a driving-force transmission mechanism which converts linear displacement of an output unit of a driving unit into rotational displacement of a clamping arm. The driving-force transmission mechanism includes: an inclined part which is integrally displaced with the linear displacement of the output unit, and which is inclined with respect to the displacement direction of the output unit; and a part to be pressed which is pressed by the inclined part. The clamping arm rotates in accordance with movement of the part to be pressed which is pressed by the displaced inclined part, and generates clamping force.Type: GrantFiled: March 16, 2015Date of Patent: January 28, 2020Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kenichi Takeda
-
Patent number: 10543584Abstract: A clamp apparatus is equipped with first and second clamp arms supported rotatably with respect to a body, and a drive unit having a pair of first and second pistons displaced under the supply of a pressure fluid. A driving force of the drive unit is transmitted to the first and second clamp arms through knuckle joints, which are connected to first and second piston rods, power-boost levers, and link arms. The power-boost levers are formed such that the length from a support pin toward the knuckle joint is longer than the length from the support pin toward the link arm.Type: GrantFiled: December 11, 2013Date of Patent: January 28, 2020Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
-
Patent number: 10335927Abstract: A clamp apparatus including first and second clamp arms, which are supported rotatably on a body, with a cover being installed to cover outer sides of the body. The cover includes openings through which portions of the first and second clamp arms are inserted and rotatably operated. An unloading tray is arranged in the body at a position below the openings in the direction of gravity. Spatter, which invades into the clamp apparatus from the openings when a welding operation is carried out on a workpiece that is clamped by the first and second clamp arms, is deposited on the unloading tray, and the spatter is eliminated by taking out the unloading tray to the exterior of the clamp apparatus.Type: GrantFiled: July 10, 2014Date of Patent: July 2, 2019Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
-
Patent number: 10220491Abstract: An electric clamp apparatus includes a body, a rotary drive unit which is driven rotatably by an electric signal, and a rotary body rotated under a driving action of the rotary drive unit. Gear teeth of a clamp arm are enmeshed with helical screw grooves formed on the outer circumferential surface of the rotary body. The rotary body is rotated by driving the rotary drive unit, whereby the clamp arm, which is enmeshed with the screw grooves, is rotated through a predetermined angle to bring about a clamped state for clamping a workpiece.Type: GrantFiled: October 11, 2012Date of Patent: March 5, 2019Assignee: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Noriyuki Miyazaki
-
Patent number: 10195720Abstract: An electric clamp apparatus includes a body, a rotary drive unit which is driven rotatably by an electric signal, and a clamp arm disposed rotatably with respect to the body. By driving the rotary drive unit, a drive force is transmitted to the clamp arm through a drive force transmission mechanism, whereby the clamp arm is rotated via a link arm through a predetermined angle with respect to the body, and a workpiece is clamped between the clamp arm and a support member of the body. Further, rotational operation of the clamp arm is regulated by abutment of a sub-roller against an inclined portion of a displacement body.Type: GrantFiled: October 11, 2012Date of Patent: February 5, 2019Assignee: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Noriyuki Miyazaki
-
Patent number: 10173303Abstract: A clamping device has a pair of first and second clamping arms rotatably supported with respect to a body, and a cam member having a cam surface is removably provided at one end of each of the first and second clamping arms. A pair of rollers pivotally supported by a block body constituting a drive unit are each in contact with the cam member. By a descent of the block body under the driving action of the drive unit, the cam surface of the cam member is pressed by the rollers, and the cam surface inclined in the displacement direction of the block body and recessed in a cross-sectional arc shape is pressed.Type: GrantFiled: January 28, 2014Date of Patent: January 8, 2019Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
-
Publication number: 20180298926Abstract: On inner wall surfaces of a head cover and a rod cover of a fluid pressure cylinder, respective pluralities of first and second spigot pins are installed to project out from the inner wall surfaces. The first and second spigot pins are disposed on circumferences of a predetermined diameter that internally contact or inscribe the cylinder tube. Further, when the cylinder tube is assembled with respect to the head cover and the rod cover, by the flange members of the first and second spigot pins inscribing the inner circumferential surface thereof, the cylinder tube is positioned and assembled coaxially with respect to the centers of the head cover and the rod cover.Type: ApplicationFiled: June 1, 2016Publication date: October 18, 2018Applicant: SMC CorporationInventors: Yasunaga SUZUKI, Chiaki FUKUI, Makoto YAEGASHI