Patents by Inventor Makoto Matsuzaki
Makoto Matsuzaki 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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Patent number: 11198414Abstract: An occupant restraint system for a vehicle includes: a seat belt device configured w restrain an occupant seated on a vehicular seat with a webbing, in which one end of the webbing is wound around a winding device and the other end is fixed to one of the vehicular seat and a vehicle body, and the seat belt device is configured so that a motor provided in the winding device is driven to wind the webbing; and an electronic control unit configured to drive the motor so that a prescribed amount of the webbing is wound, when a first condition is satisfied.Type: GrantFiled: October 10, 2019Date of Patent: December 14, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuya Nezaki, Motoki Sugiyama, Fumihito Komeno, Makoto Matsuzaki, Kenji Fukuta
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Patent number: 11135997Abstract: A buckle device includes: a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected; a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body; and a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to a vehicle seat or a vehicle body, and an energy absorbing member that is deformed by rotation of the take-up shaft.Type: GrantFiled: January 8, 2020Date of Patent: October 5, 2021Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Katsuya Shimazu, Yoshio Mizuno, Makoto Matsuzaki
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Patent number: 10808811Abstract: At a lift-up buckle device, due to a motor being driven and an output shaft of the motor being rotated, a drive screw is rotated. Further, a supporting tube rotatably supports a rear end portion of the drive screw. Here, the output shaft rotatably supports a front end portion of the drive screw. Therefore, offset between a rotation central axis of the output shaft and a rotation central axis of the drive screw can be suppressed.Type: GrantFiled: December 28, 2017Date of Patent: October 20, 2020Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventor: Makoto Matsuzaki
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Publication number: 20200247352Abstract: A buckle device includes: a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected; a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body; and a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to a vehicle seat or a vehicle body, and an energy absorbing member that is deformed by rotation of the take-up shaft.Type: ApplicationFiled: January 8, 2020Publication date: August 6, 2020Applicants: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki SeisakushoInventors: Katsuya Shimazu, Yoshio Mizuno, Makoto Matsuzaki
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Patent number: 10723309Abstract: A vehicle seat belt device includes: an anchor part configured to be provided at a vehicle seat or a vehicle body on a first side in a width direction of the vehicle seat, and to displace a lower end portion of a buckle device to a vehicle front side by being deformed by a load applied from a lap belt to the buckle device at a time of vehicle collision; and a buckle rotation mechanism configured to include a guide part that is provided at the vehicle seat or body on a vehicle downward side of the buckle device and inclined downward toward the vehicle front side, and a pull-in part that connects the guide part and an upper portion of the buckle device and is slidable along the guide part, and to rotate the buckle device to the vehicle front side and downward side due to the displacement.Type: GrantFiled: December 14, 2018Date of Patent: July 28, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsuyoshi Ohno, Makoto Matsuzaki
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Patent number: 10688957Abstract: In a lift-up buckle device, a slider and a shoe move forward and a buckle is moved to a stowed position. The shoe impacts against a protruding portion at a lower portion of a damper and interferes with a housing via the lower portion of the damper. Thus, the forward movement of the slider and shoe is stopped, while the damper absorbs an impact against the slider and shoe. Therefore, an amount of the impact against the slider and shoe that is absorbed by the damper may be increased by the protruding portion, and the damper may absorb the impact against the slider and shoe effectively.Type: GrantFiled: August 24, 2017Date of Patent: June 23, 2020Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Naoya Watanabe, Takuhiro Saito, Yasunori Hata, Makoto Matsuzaki, Yusuke Watada, Tatsuhiro Murasaki
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Publication number: 20200189517Abstract: In a lift-up buckle device, a movement resistance adjustment portion is provided on an outer circumferential surface of a drive screw. The movement resistance adjustment portion is formed by a first screw segment, a second screw segment, and a third screw segment on which are formed male screw threads that each have mutually different thread precisions. Because of this, when, as a result of the drive screw being rotated, a slider is moved in the longitudinal direction of the drive screw, the ease with which the drive screw can be rotated changes in accordance with the respective thread precisions of the first screw segment, the second screw segment, and the third screw segment.Type: ApplicationFiled: August 15, 2017Publication date: June 18, 2020Inventor: Makoto MATSUZAKI
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Patent number: 10640081Abstract: A vehicle seat includes a seat back, a motor, a gear, a take-up device and a pre-tensioner component. The seat back extends in a seat vertical direction and supports the back area of a seat occupant. A seat back frame structures a framework of the seat back. The motor is mounted to an upper portion of the seat back frame. The gear is arranged along the seat back frame adjacent to the motor and transmits driving force from the motor. The take-up device is arranged along the seat back frame adjacent to the gear, and is provided with a spool onto which a webbing is wound. Driving force from the motor is transmitted to the take-up device via the gear. The pre-tensioner component is arranged along the seat back frame adjacent to the take-up device. When activated, the pre-tensioner component forcibly takes up the spool.Type: GrantFiled: November 5, 2018Date of Patent: May 5, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Osamu Fukawatase, Makoto Matsuzaki
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Publication number: 20200114866Abstract: An occupant restraint system for a vehicle includes: a seat belt device configured w restrain an occupant seated on a vehicular seat with a webbing, in which one end of the webbing is wound around a winding device and the other end is fixed to one of the vehicular seat and a vehicle body, and the seat belt device is configured so that a motor provided in the winding device is driven to wind the webbing; and an electronic control unit configured to drive the motor so that a prescribed amount of the webbing is wound, when a first condition is satisfied.Type: ApplicationFiled: October 10, 2019Publication date: April 16, 2020Applicant: Toyota Jidosha Kabushiki KaishaInventors: Takuya Nezaki, Motoki Sugiyama, Fumihito Komeno, Makoto Matsuzaki, Kenji Fukuta
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Publication number: 20190225185Abstract: A vehicle seat belt device includes: an anchor part configured to be provided at a vehicle seat or a vehicle body on a first side in a width direction of the vehicle seat, and to displace a lower end portion of a buckle device to a vehicle front side by being deformed by a load applied from a lap belt to the buckle device at a time of vehicle collision; and a buckle rotation mechanism configured to include a guide part that is provided at the vehicle seat or body on a vehicle downward side of the buckle device and inclined downward toward the vehicle front side, and a pull-in part that connects the guide part and an upper portion of the buckle device and is slidable along the guide part, and to rotate the buckle device to the vehicle front side and downward side due to the displacement.Type: ApplicationFiled: December 14, 2018Publication date: July 25, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsuyoshi OHNO, Makoto MATSUZAKI
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Publication number: 20190193674Abstract: A vehicle seat includes a seat back, a motor, a gear, a take-up device and a pre-tensioner component. The seat back extends in a seat vertical direction and supports the back area of a seat occupant. A seat back frame structures a framework of the seat back. The motor is mounted to an upper portion of the seat back frame. The gear is arranged along the seat back frame adjacent to the motor and transmits driving force from the motor. The take-up device is arranged along the seat back frame adjacent to the gear, and is provided with a spool onto which a webbing is wound. Driving force from the motor is transmitted to the take-up device via the gear. The pre-tensioner component is arranged along the seat back frame adjacent to the take-up device. When activated, the pre-tensioner component forcibly takes up the spool.Type: ApplicationFiled: November 5, 2018Publication date: June 27, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Osamu FUKAWATASE, Makoto MATSUZAKI
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Patent number: 10220811Abstract: A reduction in the durability of a coupling member coupled to a buckle is suppressed. A lift-up buckle device includes a buckle that engages with a tongue inserted through webbing worn by an occupant, and wires that each have a portion fixed to the buckle and that are displaced to move the buckle. The lift-up buckle device also includes a wire guide that includes a guide groove that guides the wires, and a soft lower cover that engages with the wire guide and covers the wires. A dimension of an end portion on the buckle side of the guide groove is set so as to increase on progression toward the buckle side.Type: GrantFiled: January 19, 2017Date of Patent: March 5, 2019Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Tatsuhiro Murasaki, Takuhiro Saito, Yasunori Hata, Yusuke Watada, Koji Hayashi, Makoto Matsuzaki
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Publication number: 20180202523Abstract: At a lift-up buckle device, due to a motor being driven and an output shaft of the motor being rotated, a drive screw is rotated. Further, a supporting tube rotatably supports a rear end portion of the drive screw. Here, the output shaft rotatably supports a front end portion of the drive screw. Therefore, offset between a rotation central axis of the output shaft and a rotation central axis of the drive screw can be suppressed.Type: ApplicationFiled: December 28, 2017Publication date: July 19, 2018Inventor: Makoto MATSUZAKI
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Patent number: 10000182Abstract: In a buckle device, displacement of a buckle cover in a width direction with respect to a buckle guide is restricted by restricting grooves of the buckle cover and restricting ribs of the buckle guide that enter the restricting grooves. This enables a space to be secured between a wall portion on one side in a width direction of the buckle cover and a wall portion on one side in a width direction of the buckle guide.Type: GrantFiled: February 7, 2017Date of Patent: June 19, 2018Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Koji Hayashi, Makoto Matsuzaki
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Patent number: 9974364Abstract: In a seat belt device, when a buckle cover is moved obliquely upward in a vehicle forward direction relative to a buckle guide and the buckle cover reaches a moving endpoint at a vehicle upper side relative to the buckle guide, cover-side engagement portions of the buckle cover become sandwiched between vehicle lower side surfaces of guide-side engagement portions of the buckle guide, and the outside surfaces of guide long-side wall portions of the buckle guide. Due to this, not only movement of the cover-side engagement portions of the buckle cover in the vehicle upward direction but also movement of the cover-side engagement portions outwards in the thickness directions of the cross-sectional shapes of the buckle cover and the buckle guide are restrained by the guide-side engagement portions.Type: GrantFiled: April 13, 2016Date of Patent: May 22, 2018Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Tatsuhiro Murasaki, Takuhiro Saito, Makoto Matsuzaki, Koji Hayashi, Hiroto Tanaka
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Publication number: 20180056933Abstract: In a lift-up buckle device, a slider and a shoe move forward and a buckle is moved to a stowed position. The shoe impacts against a protruding portion at a lower portion of a damper and interferes with a housing via the lower portion of the damper. Thus, the forward movement of the slider and shoe is stopped, while the damper absorbs an impact against the slider and shoe. Therefore, an amount of the impact against the slider and shoe that is absorbed by the damper may be increased by the protruding portion, and the damper may absorb the impact against the slider and shoe effectively.Type: ApplicationFiled: August 24, 2017Publication date: March 1, 2018Inventors: Naoya WATANABE, Takuhiro SAITO, Yasunori HATA, Makoto MATSUZAKI, Yusuke WATADA, Tatsuhiro MURASAKI
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Patent number: 9849859Abstract: In a buckle device, cord portions that are pulled out from a distal end portion in a longitudinal direction of a helical portion of a curl cord are electrically and mechanically connected to a terminal of a buckle switch of a buckle. The distal end portion in the longitudinal direction of the helical portion of the curl cord is held by a holding bracket that is provided at a first cover component of a buckle cover. Consequently, even when the buckle cover is moved, excellent connections can still be maintained between the cord portions of the curl cord and the terminal of the buckle switch of the buckle.Type: GrantFiled: July 13, 2016Date of Patent: December 26, 2017Assignee: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHOInventors: Koji Hayashi, Takuhiro Saito, Makoto Matsuzaki
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Publication number: 20170232928Abstract: A buckle guide formed in the shape of a cross-sectionally rectangular tube is inserted from a vehicle rear and lower end portion of a buckle cover of a buckle, and guide ribs that project from an inner surface of the buckle cover are in abutting contact with a rectangular guide surface that is an outer surface of the buckle guide. Because of this, swiveling of the buckle cover relative to the buckle guide is limited.Type: ApplicationFiled: August 13, 2015Publication date: August 17, 2017Inventors: Atsushi TATSUMA, Makoto MATSUZAKI, Nao ONODERA, Hiroto TANAKA, Koji HAYASHI, Takuhiro SAITO
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Publication number: 20170232927Abstract: A reduction in the durability of a coupling member coupled to a buckle is suppressed. A lift-up buckle device includes a buckle that engages with a tongue inserted through webbing worn by an occupant, and wires that each have a portion fixed to the buckle and that are displaced to move the buckle. The lift-up buckle device also includes a wire guide that includes a guide groove that guides the wires, and a soft lower cover that engages with the wire guide and covers the wires. A dimension of an end portion on the buckle side of the guide groove is set so as to increase on progression toward the buckle side.Type: ApplicationFiled: January 19, 2017Publication date: August 17, 2017Inventors: Tatsuhiro MURASAKI, Takuhiro SAITO, Yasunori HATA, Yusuke WATADA, Koji HAYASHI, Makoto MATSUZAKI
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Publication number: 20170225645Abstract: In a buckle device, displacement of a buckle cover in a width direction with respect to a buckle guide is restricted by restricting grooves of the buckle cover and restricting ribs of the buckle guide that enter the restricting grooves. This enables a space to be secured between a wall portion on one side in a width direction of the buckle cover and a wall portion on one side in a width direction of the buckle guide.Type: ApplicationFiled: February 7, 2017Publication date: August 10, 2017Inventors: Koji HAYASHI, Makoto MATSUZAKI