Patents Assigned to Kurashiki Kako Co., Ltd.
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Patent number: 11885440Abstract: Provided is a method for manufacturing a laminated rubber hose that includes a first layer and a second layer laminated on an outer surface of the first layer, the first layer containing a thermosetting resin in an amount of 4.5 parts by mass or less relative to 100 parts by mass of a rubber component, the method including laminating the second layer on the outer surface of the first layer with the outer surface of the first layer maintained at a temperature range of 65° C. or more and 105° C. or less.Type: GrantFiled: April 30, 2020Date of Patent: January 30, 2024Assignee: KURASHIKI KAKO CO., LTD.Inventor: Yuya Miyake
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Patent number: 11801723Abstract: A strut mount includes: an inner member coupled to a suspension; an outer bracket having an outer cylinder portion housing the inner member, and a flange portion protruding radially outward from the outer cylinder portion and coupled to a vehicle body; an elastic member interposed between the inner member and the outer cylinder portion; and a seal member interposed between the flange portion and the vehicle body. The seal member includes an annular portion located between the flange portion and the vehicle body, and a first downward extending portion extending downward from an outer peripheral portion of the annular portion toward the opposite side from the vehicle body. The flange portion includes a placement surface portion which faces toward the vehicle body and on which the annular portion is placed, and a first sidewall portion extending from an outer peripheral portion of the placement surface portion to the opposite side from the vehicle body.Type: GrantFiled: September 30, 2021Date of Patent: October 31, 2023Assignees: KURASHIKI KAKO CO., LTD., SUBARU CORPORATIONInventors: Yuya Watanabe, Naoki Miyamoto, Hiroo Kawano
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Publication number: 20220105765Abstract: A strut mount includes: an inner member coupled to a suspension; an outer bracket having an outer cylinder portion housing the inner member, and a flange portion protruding radially outward from the outer cylinder portion and coupled to a vehicle body; an elastic member interposed between the inner member and the outer cylinder portion; and a seal member interposed between the flange portion and the vehicle body. The seal member includes an annular portion located between the flange portion and the vehicle body, and a first downward extending portion extending downward from an outer peripheral portion of the annular portion toward the opposite side from the vehicle body. The flange portion includes a placement surface portion which faces toward the vehicle body and on which the annular portion is placed, and a first sidewall portion extending from an outer peripheral portion of the placement surface portion to the opposite side from the vehicle body.Type: ApplicationFiled: September 30, 2021Publication date: April 7, 2022Applicants: KURASHIKI KAKO CO., LTD., SUBARU CORPORATIONInventors: Yuya WATANABE, Naoki MIYAMOTO, Hiroo KAWANO
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Publication number: 20200362994Abstract: Provided is a method for manufacturing a laminated rubber hose that includes a first layer and a second layer laminated on an outer surface of the first layer, the first layer containing a thermosetting resin in an amount of 4.5 parts by mass or less relative to 100 parts by mass of a rubber component, the method including laminating the second layer on the outer surface of the first layer with the outer surface of the first layer maintained at a temperature range of 65° C. or more and 105° C. or less.Type: ApplicationFiled: April 30, 2020Publication date: November 19, 2020Applicant: KURASHIKI KAKO CO., LTD.Inventor: Yuya MIYAKE
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Patent number: 10837512Abstract: A method for manufacturing a vibration isolation apparatus includes: molding elastic parts of an elastic body; compressing in which the elastic parts are pressed against positions in which the elastic parts are provided to an inner member so that the elastic parts are compressed to have a size equivalent to a size in which the elastic parts fit between the inner member and an outer cylinder; press-fitting the inner member and the elastic parts integrally into the outer cylinder while the elastic parts are kept compressed; and fastening the elastic parts to the inner member and the outer cylinder.Type: GrantFiled: October 26, 2018Date of Patent: November 17, 2020Assignee: KURASHIKI KAKO CO., LTD.Inventors: Yuji Itano, Mineyuki Ohara
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Patent number: 10807454Abstract: A stopper portion includes a first protruding portion protruding from the end face of the first attachment portion closer to the outside in the main load input direction toward the outside in the main load input direction; and a second protruding portion protruding from the end face of the first attachment portion closer to the outside in the main load input direction toward the outside in the main load input direction, being spaced apart from the first protruding portion so as to be in a non-contact state with the first protruding portion, being thinner than the first protruding portion in the main load input direction, and having a protruding end in which a distance between the protruding end and the contact surface is longer in the main load input direction than a distance between a protruding end of the first protruding portion and the contact surface.Type: GrantFiled: August 31, 2018Date of Patent: October 20, 2020Assignees: KURASHIKI KAKO CO., LTD., MAZDA MOTOR CORPORATIONInventors: Yoshinori Kondo, Kenta Okamoto, Masaki Aoyama, Tomo Fujiaki
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Patent number: 10724598Abstract: An active vibration isolator including a movable stage provides good vibration isolation performance. An active vibration isolator includes: a stage moving under thrust to position a mounted object; a vibration isolation table supporting the stage; a servo valve imparting, to the vibration isolation table, a control force that reduces vibrations of the vibration isolation table; a position/thrust obtaining unit obtaining a position of the stage on a movement track and the thrust actually applied to the stage with movement of the stage; and a vibration control FF control unit performing feed-forward control of the servo valve, based on what is obtained by the position/thrust obtaining unit, to allow the servo valve to generate a control force commensurate with vibrations of the vibration isolation table caused by the movement of the stage.Type: GrantFiled: July 26, 2018Date of Patent: July 28, 2020Assignee: KURASHIKI KAKO CO., LTD.Inventors: Ichiro Kishimoto, Seigo Abe, Rina Hoshida, Min Li, Shingo Takahashi
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Publication number: 20190301556Abstract: A method for manufacturing a vibration isolation apparatus includes: molding elastic parts of an elastic body; compressing in which the elastic parts are pressed against positions in which the elastic parts are provided to an inner member so that the elastic parts are compressed to have a size equivalent to a size in which the elastic parts fit between the inner member and an outer cylinder; press-fitting the inner member and the elastic parts integrally into the outer cylinder while the elastic parts are kept compressed; and fastening the elastic parts to the inner member and the outer cylinder.Type: ApplicationFiled: October 26, 2018Publication date: October 3, 2019Applicant: KURASHIKI KAKO CO., LTD.Inventors: Yuji ITANO, Mineyuki OHARA
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Patent number: 10279671Abstract: A protrusion (54) acting as an engagement portion is provided to a root (52) of a spindle (5) to an engine. An extending portion (45) extending above the root (52) of the spindle (5) is provided to a stopper (4). An opening (46) acting as a coupler is provided to the extending portion (45). The protrusion (54) and the opening (46) engage with each other, thereby reducing the risk of the spindle (5) coming off and regulating relative displacement of an upper rigid member (2) supporting the spindle (5) inserted into the upper rigid member (2).Type: GrantFiled: September 13, 2016Date of Patent: May 7, 2019Assignee: KURASHIKI KAKO CO., LTD.Inventor: Prabhakar Soma
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Publication number: 20190070945Abstract: A stopper portion includes a first protruding portion protruding from the end face of the first attachment portion closer to the outside in the main load input direction toward the outside in the main load input direction; and a second protruding portion protruding from the end face of the first attachment portion closer to the outside in the main load input direction toward the outside in the main load input direction, being spaced apart from the first protruding portion so as to be in a non-contact state with the first protruding portion, being thinner than the first protruding portion in the main load input direction, and having a protruding end in which a distance between the protruding end and the contact surface is longer in the main load input direction than a distance between a protruding end of the first protruding portion and the contact surface.Type: ApplicationFiled: August 31, 2018Publication date: March 7, 2019Applicants: KURASHIKI KAKO CO., LTD., MAZDA MOTOR CORPORATIONInventors: Yoshinori KONDO, Kenta OKAMOTO, Masaki AOYAMA, Tomo FUJIAKI
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Publication number: 20190032747Abstract: An active vibration isolator including a movable stage provides good vibration isolation performance. An active vibration isolator includes: a stage moving under thrust to position a mounted object; a vibration isolation table supporting the stage; a servo valve imparting, to the vibration isolation table, a control force that reduces vibrations of the vibration isolation table; a position/thrust obtaining unit obtaining a position of the stage on a movement track and the thrust actually applied to the stage with movement of the stage; and a vibration control FF control unit performing feed-forward control of the servo valve, based on what is obtained by the position/thrust obtaining unit, to allow the servo valve to generate a control force commensurate with vibrations of the vibration isolation table caused by the movement of the stage.Type: ApplicationFiled: July 26, 2018Publication date: January 31, 2019Applicant: KURASHIKI KAKO CO., LTD.Inventors: Ichiro KISHIMOTO, Seigo ABE, Rina HOSHIDA, Min LI, Shingo TAKAHASHI
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Publication number: 20180257471Abstract: A protrusion (54) acting as an engagement portion is provided to a root (52) of a spindle (5) to an engine. An extending portion (45) extending above the root (52) of the spindle (5) is provided to a stopper (4). An opening (46) acting as a coupler is provided to the extending portion (45). The protrusion (54) and the opening (46) engage with each other, thereby reducing the risk of the spindle (5) coming off and regulating relative displacement of an upper rigid member (2) supporting the spindle (5) inserted into the upper rigid member (2).Type: ApplicationFiled: September 13, 2016Publication date: September 13, 2018Applicant: KURASHIKI KAKO CO., LTD.Inventor: Prabhakar SOMA
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Publication number: 20170355241Abstract: Disclosed herein is a strut mount interposed between a vehicle body and a piston rod of a shock absorber of a suspension. The strut mount includes an interior member passed through by and fixed to the piston rod; an exterior member including a cylindrical part surrounding the interior member, and a bottom formed in a ring shape by extending radially inward from a lower end of the cylindrical part, an elastic member formed in a ring shape between the interior member and the exterior member, and sandwiched between a part of the vehicle body or an upper member and the bottom of the exterior member; and a positioner radially positioning the elastic member. The elastic member is not in contact with the cylindrical part of the exterior member over its entire axial length and over its entire circumference.Type: ApplicationFiled: November 13, 2015Publication date: December 14, 2017Applicant: KURASHIKI KAKO CO., LTD.Inventor: Junya HAYASHI
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Patent number: 9618078Abstract: A vibration isolator includes: a pair of opposing members fixed to a vehicle body of the vehicle to be located on both sides of a protrusion protruding from an outer circumferential edge of the power train in a direction perpendicular to the principal axes of inertia to oppose to each other in the direction about the principal axes of inertia; a precompressed part provided on part of each of the opposing members facing the protrusion to be precompressed by the opposing member and the protrusion in the direction about the principal axes of inertia; and a contacting part provided on part of each of the opposing members facing the protrusion to be spaced from the protrusion, and contacts the protrusion when the power train vibrates in the direction about the principal axes of inertia.Type: GrantFiled: March 6, 2015Date of Patent: April 11, 2017Assignees: KURASHIKI KAKO CO., LTD., KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yoshinori Kondo, Kazuo Miyake, Sumio Uchida, Hidehito Kondo
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Patent number: 8950737Abstract: An antivibration device (1) has a vehicle body-side fixing member (3) adapted to be fixed to a vehicle body. A shaft (6) extends to couple between a pair of sidewalls (11) of the vehicle body-side fixing member (3). An engine-side fixing member (2) is adapted to be fixed to an engine and is provided between the sidewalls (11) to surround around the shaft (6). An elastomer stopper (5) is provided integrally on an inner surface of the engine-side fixing member (2) to define an annular stopper surface (20) that surrounds the shaft (6) while leaving a given gap therebetween. An elastomer mount body (4) couples a base (10) of the vehicle body-side fixing member (3) and the engine-side fixing member (2) together. The antivibration device (1) adequately absorbs a vibrational load applied from the engine in various directions, while ensuring compactness.Type: GrantFiled: November 16, 2011Date of Patent: February 10, 2015Assignee: Kurashiki Kako Co., Ltd.Inventors: Soma Prabhakar, Takashi Nishie
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Patent number: 8926313Abstract: A bladder-type jig used for manufacturing a stiffened panel structure using a hat stringer has the advantage that deformation of prepreg can be suppressed effectively, and durability of the jig can be improved so that repeated use of the jig is achieved. A body of the bladder includes a pipe-shaped portion and a coating film covering the outer peripheral surface of the pipe-shaped portion. The pipe-shaped portion is a main body portion of the body, and is made of a silicone rubber composition material such that its transverse cross-section has a trapezoidal pipe shape. Both side edge portions of an exposed wall portion corresponding to a lower base of the transverse cross-section are thickened edge portions which are greater in thickness than another wall portions. The thickened edge portions support the exposed wall portion from inward of the body, and can suppress the exposed wall portion from getting deformed inwardly.Type: GrantFiled: September 8, 2010Date of Patent: January 6, 2015Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Kurashiki Kako Co., Ltd., Tsubakimoto Kogyo Co., Ltd.Inventors: Toshikazu Sana, Yasuo Hanafusa, Hidehisa Nishina, Seiichi Oyama, Yuji Yamaguchi
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Patent number: 8794605Abstract: A first elastic member coupling a first inner cylinder and a first cylindrical part is integrated with the outer surface of the first inner cylinder and the inner surface of the first cylindrical part, thereby ensuring flexibility in molding the first cylindrical part. In addition, a stopper body is formed by making a part of the inner surface of the first cylindrical part facing the first inner cylinder in a main-load application direction project inward along a radius of the first cylindrical part.Type: GrantFiled: November 4, 2011Date of Patent: August 5, 2014Assignee: Kurashiki Kako Co., Ltd.Inventor: Masaaki Mizobe
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Publication number: 20130168907Abstract: A torque rod includes a stopper. The stopper includes a first guide portion sloped to a top-bottom direction of a vehicle body on one side in the top-bottom direction of the vehicle body relative to a reference axis, and a second guide portion sloped to the top-bottom direction of the vehicle body in an opposite direction of the slope of the first guide portion on the other side in the top-bottom direction of the vehicle body relative to the reference axis.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: Kurashiki Kako Co., Ltd.Inventors: Masaaki MIZOBE, Kazuo MIYAKE
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Publication number: 20130134641Abstract: A vibration isolator includes an elastic body. The elastic body has a pair of main spring portions extending on both sides in a first axis-perpendicular direction from an outer peripheral surface of an inner cylinder body and coupled to an inner peripheral surface of an outer cylinder body, and an axis-perpendicular stopper portion protruding inward in a second axis-perpendicular direction perpendicular to the first axis-perpendicular direction from the inner peripheral surface of the outer cylinder body and restricting relative movement between the inner and outer cylinder bodies in the second axis-perpendicular direction. The vibration isolator further includes a first coupling elastic body provided between the axial stopper elastic body and one of the main spring portions to couple them together, and a second coupling elastic body provided between the axial stopper elastic body and the axis-perpendicular stopper portion to couple them together.Type: ApplicationFiled: November 29, 2011Publication date: May 30, 2013Applicant: KURASHIKI KAKO CO., LTD.Inventor: Hirofumi Yanagi
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Publication number: 20120219660Abstract: A bladder-type jig used for manufacturing a stiffened panel structure using a hat stringer has the advantage that deformation of prepreg can be suppressed effectively, and durability of the jig can be improved so that repeated use of the jig is achieved. A body of the bladder includes a pipe-shaped portion and a coating film covering the outer peripheral surface of the pipe-shaped portion. The pipe-shaped portion is a main body portion of the body, and is made of a silicone rubber composition material such that its transverse cross-section has a trapezoidal pipe shape. Both side edge portions of an exposed wall portion corresponding to a lower base of the transverse cross-section are thickened edge portions which are greater in thickness than another wall portions. The thickened edge portions support the exposed wall portion from inward of the body, and can suppress the exposed wall portion from getting deformed inwardly.Type: ApplicationFiled: September 8, 2010Publication date: August 30, 2012Applicants: KAWASAKI JUKOGYO KABUSHIKI KAISHA, TSUBAKIMOTO KOGYO CO., LTD., KURASHIKI KAKO CO., LTD.Inventors: Toshikazu Sana, Yasuo Hanafusa, Hidehisa Nishina, Seiichi Oyama, Yuji Yamaguchi