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).
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Publication number: 20150343608Abstract: A driving force transmission mechanism of a clamp apparatus includes first link arms, which are pivotally supported for rotation on ends of first and second piston rods, and second link arms, which connect other ends of the first link arms to respective ends on one end side of first and second clamp arms. Further, first rollers, which are provided on the one end of the first link arms, are guided in a horizontal direction along guide grooves of first guide members, and second rollers, which are provided on the other ends of the first link arms and the second link arms, are guided in a vertical direction along guide grooves of second guide members.Type: ApplicationFiled: December 11, 2013Publication date: December 3, 2015Inventors: Chiaki FUKUI, Kazuyoshi TAKAHASHI, Hideki SASAKI, Masaharu KOBAYASHI
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Publication number: 20150145195Abstract: A clamp apparatus is equipped with a body, and a drive unit having a piston displaced under the supply of a pressure fluid. A clamp arm is disposed rotatably on the body. In addition, a piston rod of the drive unit is connected detachably with respect to a displaceable body of a driving force transmission mechanism which is disposed in the interior of the body. Upon detachment of a connector of the piston rod from a connecting recess of the displaceable body, the state of connection between the drive unit and the driving force transmission mechanism is released.Type: ApplicationFiled: June 17, 2013Publication date: May 28, 2015Applicant: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Youji Takakuwa
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Publication number: 20140367906Abstract: 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: ApplicationFiled: October 11, 2012Publication date: December 18, 2014Applicant: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Noriyuki Miyazaki
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Publication number: 20140361478Abstract: 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: ApplicationFiled: October 11, 2012Publication date: December 11, 2014Applicant: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Noriyuki Miyazaki
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Publication number: 20140339753Abstract: An electric clamp apparatus includes a body, a rotary drive unit which is driven rotatably by an electric signal, a drive force transmission mechanism for transmitting a rotary drive force of the rotary drive unit to a toggle link mechanism, 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 the drive force transmission mechanism, whereby the clamp arm is rotated 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. At this time, an adjustment mechanism disposed on the clamp arm includes a rod, which advances and retracts so as to stably clamp workpieces of different plate thicknesses.Type: ApplicationFiled: October 11, 2012Publication date: November 20, 2014Applicant: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Noriyuki Miyazaki
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Publication number: 20140076157Abstract: A piston main body (13) in a piston assembly (10A) of a fluid pressure cylinder (11) has a first piston member (40) and a second piston member (42) composed of a plate-shaped member. The first piston member (40) and the second piston member (42) are joined in a state overlapping in the axial direction of a piston rod (15). The second piston member (42) is not provided with a hole that passes through in the plate thickness direction.Type: ApplicationFiled: May 22, 2012Publication date: March 20, 2014Applicant: SMC KABUSHIKI KAISHAInventor: Chiaki Fukui
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Patent number: 8302526Abstract: A sealing mechanism is mounted at an end section of a cylinder tube, which configures a cylinder device, by having a step section in between, and the sealing mechanism is sandwiched between the cylinder tube and a rod cover. The sealing mechanism includes a thin plate formed of a metal material, and a sealing member attached to one side surface of the plate. The plate and the sealing member are integrally arranged.Type: GrantFiled: August 30, 2007Date of Patent: November 6, 2012Assignee: SMC Kabushiki KaishaInventors: Chiaki Fukui, Kazuyoshi Takahashi, Atsushi Tamai
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Patent number: 8215622Abstract: A clamp device including a detection mechanism provided to detect whether the clamp device is in a clamped state or an unclamped state. The detection mechanism includes a tilt plate tiltably placed inside a switch holder installed on a body and a sliding rod displaced together with a piston rod and displaced in the direction normal to the tilt plate. When the sliding rod presses and tilts the tilt plate while a piston is displaced, a second detection switch detects that the clamp device is in the unclamped state.Type: GrantFiled: July 25, 2007Date of Patent: July 10, 2012Assignee: SMC Kabushiki KaishaInventors: Chiaki Fukui, Kazuyoshi Takahashi, Atsushi Tamai
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Publication number: 20090283948Abstract: A clamp device including a detection mechanism provided to detect whether the clamp device is in a clamped state or an unclamped state. The detection mechanism includes a tilt plate tiltably placed inside a switch holder installed on a body and a sliding rod displaced together with a piston rod and displaced in the direction normal to the tilt plate. When the sliding rod presses and tilts the tilt plate while a piston is displaced, a second detection switch detects that the clamp device is in the unclamped state.Type: ApplicationFiled: July 25, 2007Publication date: November 19, 2009Applicant: SMC Kabushiki KaishaInventors: Chiaki Fukui, Kazuyoshi Takahashi, Atsushi Tamai
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Publication number: 20090260516Abstract: A sealing mechanism is mounted at an end section of a cylinder tube, which configures a cylinder device, by having a step section in between, and the sealing mechanism is sandwiched between the cylinder tube and a rod cover. The sealing mechanism includes a thin plate formed of a metal material, and a sealing member attached to one side surface of the plate. The plate and the sealing member are integrally arranged.Type: ApplicationFiled: August 30, 2007Publication date: October 22, 2009Applicant: SMC Kabushiki KaishaInventors: Chiaki Fukui, Kazuyoshi Takahashi, Atsushi Tamai
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Patent number: 6997447Abstract: A clamp apparatus converts the rectilinear motion of a cylinder into the rotary motion by means of a toggle mechanism to clamp a workpiece by using an arm. A release projection is covered with a top cover made of metal, preferably with a top cover coated with a material excellent in smoothness. When the arm is going to be unlocked by using the release projection, a tongue of the top cover is lifted upwardly to open the top cover, and the release projection is pushed and moved downwardly.Type: GrantFiled: August 19, 2003Date of Patent: February 14, 2006Assignee: SMC Kabushiki KaishaInventor: Chiaki Fukui
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Publication number: 20040041324Abstract: A clamp apparatus converts the rectilinear motion of a cylinder into the rotary motion by means of a toggle mechanism to clamp a workpiece by using an arm. A release projection is covered with a top cover made of metal, preferably with a top cover coated with a material excellent in smoothness. When the arm is going to be unlocked by using the release projection, a tongue of the top cover is lifted upwardly to open the top cover, and the release projection is pushed and moved downwardly.Type: ApplicationFiled: August 19, 2003Publication date: March 4, 2004Applicant: SMC Kabushiki KaishaInventor: Chiaki Fukui
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Patent number: 6568313Abstract: A fluid pressure cylinder apparatus comprises a cylinder tube integrally connected between a head cover and a rod cover; a piston internally installed in the cylinder tube, for making displacement in accordance with an action of a pressure fluid supplied into the cylinder tube; and a piston rod connected to the piston; wherein a pair of first dust-removing members are installed on an outer circumferential surface of the piston with a piston packing intervening therebetween; and a second dust-removing member and a third dust-removing member are installed to an inner circumferential surface of a support section of the rod cover for the piston rod with a rod packing intervening therebetween.Type: GrantFiled: March 7, 2001Date of Patent: May 27, 2003Assignees: SMC Kabushiki Kaisha, Sakagami Seisakusho Ltd.Inventors: Chiaki Fukui, Shigeo Iinuma
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Publication number: 20020124719Abstract: A fluid pressure cylinder apparatus comprises a cylinder tube integrally connected between a head cover and a rod cover; a piston internally installed in the cylinder tube, for making displacement in accordance with an action of a pressure fluid supplied into the cylinder tube; and a piston rod connected to the piston; wherein a pair of first dust-removing members are installed on an outer circumferential surface of the piston with a piston packing intervening therebetween; and a second dust-removing member and a third dust-removing member are installed to an inner circumferential surface of a support section of the rod cover for the piston rod with a rod packing intervening therebetween.Type: ApplicationFiled: March 7, 2001Publication date: September 12, 2002Applicant: SMC KABUSHIKI KAISHAInventors: Chiaki Fukui, Shigeo Iinuma
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Patent number: 6199847Abstract: Circular arc-shaped projections are formed on a support lever which is exposed to the outside through openings formed through a first casing and a second casing for constructing a body. The circular arc-shaped projections abut against plates which are coupled to the body. Accordingly, the rotary action of an arm is stopped.Type: GrantFiled: October 20, 1999Date of Patent: March 13, 2001Assignee: SMC Kabushiki KaishaInventor: Chiaki Fukui
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Patent number: D705030Type: GrantFiled: October 15, 2013Date of Patent: May 20, 2014Assignee: SMC CorporationInventors: Chiaki Fukui, Youji Takakuwa, Kenichi Takeda
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Patent number: D720977Type: GrantFiled: October 15, 2013Date of Patent: January 13, 2015Assignee: SMC CorporationInventors: Chiaki Fukui, Youji Takakuwa, Kenichi Takeda
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Patent number: D736586Type: GrantFiled: January 16, 2014Date of Patent: August 18, 2015Assignee: SMC CORPORATIONInventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi