Patents by Inventor Shigeki Matsunami
Shigeki Matsunami 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: 11885366Abstract: A piercing nut according to the present invention includes an internal thread 11, a ring-shaped punching part 12, a ring-shaped groove 16, and a bearing surface 17. The internal thread 11 is formed at the center of a nut main body 10. The ring-shaped punching part 12 protrudes around the outer periphery of the internal thread 11. The ring-shaped groove 16 is formed around the outer periphery of the ring-shaped punching part 12. The bearing surface 17 protrudes around the outer periphery of the ring-shaped groove 16. The height h of the ring-shaped punching part 12 is equal to or lower than the height H of the bearing surface 17 in the opposite manner to the conventional technique.Type: GrantFiled: January 21, 2022Date of Patent: January 30, 2024Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Shigeki Matsunami, Kazuhiro Koga, Keiichiro Masui, Kenichiro Araki, Tsuyoshi Kojima, Yuichi Katsumata
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Patent number: 11879492Abstract: To reduce the load required to press-fit a nut into a plate material, the nut includes a base part 2 provided with a female screw 18, a cylindrical protrusion part 3 protruding from one surface of the base part and a plurality of foot parts 4 protruding from an outer peripheral surface side of the protrusion part. An end of the respective foot parts closer to the protrusion part is formed so that a width gradually expands from a tip end side toward a protrusion part side, and that both outer sides of the end are arc-shaped in plan view.Type: GrantFiled: November 18, 2020Date of Patent: January 23, 2024Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Shigeki Matsunami, Kazuhiro Koga, Tsuyoshi Kojima, Naoki Hoshino, Takuya Yoshida
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Patent number: 11773886Abstract: An article fixing device includes an adjustment mechanism, a protrusion, and a fastening bolt. The adjustment mechanism is joined to a side of a lower surface of the roof panel. The protrusion is provided integrally with the adjustment mechanism and fixes a roof rail. The fastening bolt fastens a support member to the adjustment mechanism. Further, the adjustment mechanism includes a fitting convex member provided integrally with the protrusion, a fitting concave member that that is able to be screwed into the fitting convex member, and a resin ring that is provided in the fitting concave member and that cooperates with rotation of the fastening bolt.Type: GrantFiled: May 19, 2021Date of Patent: October 3, 2023Assignees: HONDA MOTOR CO., LTD., AOYAMA SEISAKUSHO CO., LTD.Inventors: Kazunori Hida, Hideharu Kouketsu, Akihiro Furukawa, Shigeki Matsunami
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Patent number: 11725685Abstract: A caulking bolt includes a shank and a head, wherein a bearing face of the head has, along an outer circumference of the shank, a groove having a ring shape into which a crimped member is fitted. The caulking bolt includes projections and depressions for whirl-stop in the groove.Type: GrantFiled: June 12, 2020Date of Patent: August 15, 2023Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Yukinori Fujimoto, Shigeki Matsunami, Keiichiro Masui
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Publication number: 20220145925Abstract: A piercing nut according to the present invention includes an internal thread 11, a ring-shaped punching part 12, a ring-shaped groove 16, and a bearing surface 17. The internal thread 11 is formed at the center of a nut main body 10. The ring-shaped punching part 12 protrudes around the outer periphery of the internal thread 11. The ring-shaped groove 16 is formed around the outer periphery of the ring-shaped punching part 12. The bearing surface 17 protrudes around the outer periphery of the ring-shaped groove 16. The height h of the ring-shaped punching part 12 is equal to or lower than the height H of the bearing surface 17 in the opposite manner to the conventional technique.Type: ApplicationFiled: January 21, 2022Publication date: May 12, 2022Applicant: AOYAMA SEISAKUSHO CO., LTD.Inventors: Shigeki MATSUNAMI, Kazuhiro KOGA, Keiichiro MASUI, Kenichiro ARAKI, Tsuyoshi KOJIMA, Yuichi KATSUMATA
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Publication number: 20210372445Abstract: An article fixing device includes an adjustment mechanism, a protrusion, and a fastening bolt. The adjustment mechanism is joined to a side of a lower surface of the roof panel. The protrusion is provided integrally with the adjustment mechanism and fixes a roof rail. The fastening bolt fastens a support member to the adjustment mechanism. Further, the adjustment mechanism includes a fitting convex member provided integrally with the protrusion, a fitting concave member that that is able to be screwed into the fitting convex member, and a resin ring that is provided in the fitting concave member and that cooperates with rotation of the fastening bolt.Type: ApplicationFiled: May 19, 2021Publication date: December 2, 2021Inventors: Kazunori Hida, Hideharu Kouketsu, Akihiro Furukawa, Shigeki Matsunami
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Publication number: 20210115961Abstract: To reduce the load required to press-fit a nut into a plate material, the nut includes a base part 2 provided with a female screw 18, a cylindrical protrusion part 3 protruding from one surface of the base part and a plurality of foot parts 4 protruding from an outer peripheral surface side of the protrusion part. An end of the respective foot parts closer to the protrusion part is formed so that a width gradually expands from a tip end side toward a protrusion part side, and that both outer sides of the end are arc-shaped in plan view.Type: ApplicationFiled: November 18, 2020Publication date: April 22, 2021Applicant: AOYAMA SEISAKUSHO CO., LTD.Inventors: Shigeki MATSUNAMI, Kazuhiro KOGA, Tsuyoshi KOJIMA, Naoki HOSHINO, Takuya YOSHIDA
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Publication number: 20200300287Abstract: A caulking bolt includes a shank and a head, wherein a bearing face of the head has, along an outer circumference of the shank, a groove having a ring shape into which a crimped member is fitted. The caulking bolt includes projections and depressions for whirl-stop in the groove.Type: ApplicationFiled: June 12, 2020Publication date: September 24, 2020Applicant: AOYAMA SEISAKUSHO CO., LTD.Inventors: Yukinori FUJIMOTO, Shigeki MATSUNAMI, Keiichiro MASUI
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Patent number: 10655666Abstract: There is provided a caulking bolt which can be fastened by a general nut even when used to fix thin plates to each other, and which can also provide fitting strength similar to that of conventional products. The caulking bolt includes a head part and a shaft part, and has a non-circular, flat, rotation preventive protrusion formed on a seat surface of the head part. Also, the upper end of a normal complete thread part formed in the shaft part is brought close to the seat surface of the head part with a distance of 3 pitches or less, and an incomplete thread part formed at the portion of 3 pitches or less is used as a stopper part into which a metal flows when the caulking bolt is driven into a metal plate.Type: GrantFiled: May 21, 2018Date of Patent: May 19, 2020Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Naoki Hoshino, Toshiya Ohta, Mitsuki Yoshida, Tomoyuki Fukuchi, Shigeki Matsunami, Yukinori Fujimoto, Jun Omura
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Patent number: 10480564Abstract: There is provided a structure capable of ensuring a bearing surface pressure on an inner diameter side and an outer diameter side of a washer even if a thickness of the washer is suppressed. In a washer used at a fastening portion of a vehicle, a configuration in which a bearing surface is sectionalized into two faces, an inner abutting face and an outer abutting face, by an annular groove is adopted.Type: GrantFiled: July 21, 2017Date of Patent: November 19, 2019Assignees: Aoyama Seisakusho Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Takashi Matsuda, Toshinao Wada, Hideharu Koketsu, Masato Kanbe, Shigeki Matsunami, Yukinori Fujimoto
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Publication number: 20190063487Abstract: The present invention provides a bolt that can exhibit a looseness-prevention function even though the bolt is repeatedly attached and detached. A bolt 1 includes a groove 4 that extends along a helix of a screw thread 3 and that is provided on a peak 31 of the screw thread 3. Further, the bolt is configured to include a plurality of the grooves 4 being spaced apart from each other along a helical direction of the screw thread 3.Type: ApplicationFiled: October 29, 2018Publication date: February 28, 2019Applicant: AOYAMA SEISAKUSHO CO., LTDInventors: Takashi IKAMI, Kazuhiro KOGA, Shigeki MATSUNAMI, Yukinori FUJIMOTO
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Patent number: 10156250Abstract: Provided is a case nut in which a nut that is held inside a case body so as to swing freely is not fixed as a result of electrodeposition coating treatment. The case nut is provided with a case body that is welded to a body, and a nut that is held inside the case body so as to float freely. The nut is provided with a metal nut body and a resin insulating member that is formed on the outside of the nut body and prevents contact of the upper surface, lower surface and outer surfaces of the nut body with the inner wall surfaces of the case body and with the body.Type: GrantFiled: November 29, 2017Date of Patent: December 18, 2018Assignee: Aoyama Seisakusho Co., Ltd.Inventors: Yuichi Hiroi, Katsuhisa Katoh, Shigeki Matsunami, Yukinori Fujimoto
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Publication number: 20180266475Abstract: There is provided a caulking bolt which can be fastened by a general nut even when used to fix thin plates to each other, and which can also provide fitting strength similar to that of conventional products. The caulking bolt includes a head part 11 and a shaft part 12, and has a non-circular, flat, rotation preventive protrusion 14 formed on a seat surface 13 of the head part. Also, the upper end of a normal complete thread part 17 formed in the shaft part 12 is brought close to the seat surface 13 of the head part with a distance of 3 pitches or less, and an incomplete thread part 18 formed at the portion of 3 pitches or less is used as a stopper part into which a metal flows when the caulking bolt is driven into a metal plate.Type: ApplicationFiled: May 21, 2018Publication date: September 20, 2018Applicant: AOYAMA SEISAKUSHO CO., LTD.Inventors: Naoki HOSHINO, Toshiya OHTA, Mitsuki YOSHIDA, Tomoyuki FUKUCHI, Shigeki MATSUNAMI, Yukinori FUJIMOTO, Jun OMURA
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Publication number: 20180112701Abstract: Provided is a case nut in which a nut that is held inside a case body so as to swing freely is not fixed as a result of electrodeposition coating treatment. The case nut is provided with a case body 2 that is welded to a body 1, and a nut 3 that is held inside the case body 2 so as to float freely. The nut 3 is provided with a metal nut body 4 and a resin insulating member 6 that is formed on the outside of the nut body 4 and prevents contact of the upper surface, lower surface and outer surfaces of the nut body 4 with the inner wall surfaces of the case body 2 and with the body 1.Type: ApplicationFiled: November 29, 2017Publication date: April 26, 2018Applicant: AOYAMA SEISAKUSHO CO., LTD.Inventors: Yuichi HIROI, Katsuhisa KATOH, Shigeki MATSUNAMI, Yukinori FUJIMOTO
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Publication number: 20180087559Abstract: There is provided a structure capable of ensuring a bearing surface pressure on an inner diameter side and an outer diameter side of a washer even if a thickness of the washer is suppressed. In a washer (1) used at a fastening portion of a vehicle, a configuration in which a bearing surface (5) is sectionalized into two faces, an inner abutting face (3) and an outer abutting face (4), by an annular groove (2) is adopted.Type: ApplicationFiled: July 21, 2017Publication date: March 29, 2018Applicants: AOYAMA SEISAKUSHO CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi MATSUDA, Toshinao WADA, Hideharu KOKETSU, Masato KANBE, Shigeki MATSUNAMI, Yukinori FUJIMOTO
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Publication number: 20170276165Abstract: A fastening tool according to the invention includes: a female screw member (10) having an inverse screw that is fixed to the first member (1); a collar bolt (11) that is screwed with the female screw member (10); a fastening bolt (27) that is inserted into a center hole (19) of the collar bolt (11) from the second member side (2) and rotates the collar bolt (11) through a torque transmitter (25), thereby moving the collar bolt to a position colliding with the second member (2); and a fastening nut (33) that is fixed to the first member (1). An earth claw (21) protruding toward the second member (2) is formed at an outer periphery of an end surface of the collar bolt (11) facing the second member. The earth claw (21) is configured to bite into the second member (2) in an axial direction due to axial force generated by screwing the fastening bolt (7) with the fastening nut (33), thereby breaking an insulating coating layer (3) and thus ensuring electrical conduction.Type: ApplicationFiled: June 12, 2017Publication date: September 28, 2017Applicant: AOYAMA SEISAKUSHO CO., LTD.Inventors: Shigeki MATSUNAMI, Yuichiro SUZUKI, Tsuyoshi KOJIMA
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Patent number: 6135689Abstract: A self-locking fastener wherein crests of respective threads of a part of a group of threads on the self-locking fastener are deformed to provide a group of lock portions so that the respective threads have a cross section of a trapezoidal-shape over an arcuate region of 10 to 40 degrees about an axis of the self-locking fastener in a cross section perpendicular to the axis. In addition a region, in which a group of the lock portions are formed in an axial direction of the self-locking fastener, is such that when the self-locking fastener is screwed into a nut, a major part of the group of lock portions are screwed into threads of the nut.Type: GrantFiled: May 20, 1998Date of Patent: October 24, 2000Assignee: Aoyama Seisakusho Co., Ltd.Inventor: Shigeki Matsunami