Patents by Inventor Shigetaka Kinme
Shigetaka Kinme 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: 7488134Abstract: A shaft body has an engagement portion with a slip-off preventing groove, and a positioning recess extending from the engagement portion. A shaft joint having an engagement groove to be engaged with the engagement portion and a bore facing the engagement groove is provided with a flexible member which is provided on an outer side in a longitudinal direction of the engagement groove to be engaged with the positioning recess. When an insufficient amount of engagement prevents engagement in the correct position, the engagement portion contacts with the flexible member and prevents the shaft body from engaging with the shaft joint. When canceling the coupling for maintenance, etc., the engagement of the flexible member with the positioning recess is cancelled by deflecting the flexible member in a width direction of the engagement groove. Consequently, the shaft body can be easily pulled out in a longitudinal direction of the engagement groove.Type: GrantFiled: March 8, 2004Date of Patent: February 10, 2009Assignees: JTEKT Corporation, Nissan Motor., Co. Ltd.Inventors: Shigetaka Kinme, Kenichi Aota, Tadakatsu Take
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Patent number: 7461996Abstract: An erroneous assembling preventing tool for a universal joint prevents a shaft from being fixed to a cylindrical section of a yoke main body of the universal joint by fastening a bolt in a state where the shaft is not inserted into a normal position of an axial direction of the cylindrical section. The erroneous assembling preventing tool comprises a fixing section fixed to the yoke main body, a prevention section arranged between first and second tabs of the yoke main body, and a driving section for driving a prevention section. The prevention section is displaceable to a prevention position at which an end of the bolt can be prevented from being inserted through a screw hole of the second tab of the yoke and a prevention release position. The driving section displaces the prevention section to the prevention release position when it is pressed by an end of the shaft inserted into the normal position of the axial direction of the cylindrical section.Type: GrantFiled: February 17, 2006Date of Patent: December 9, 2008Assignees: Jtekt Corporation, Koyo Machine Industries Co., Ltd., Togo Seisakusyo CorporationInventors: Shigetaka Kinme, Mitsuharu Ozaki, Katsutoshi Nishizaki, Akio Kobayashi, Takehiko Ozawa
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Publication number: 20070259722Abstract: A universal joint yoke (1) is formed by press-forming a sheet metal (60) whose thickness is 8 mm or more. The yoke (1) comprises tabs (2, 3) formed of a pair of mutually parallel flat plates. First end portions (2a, 3a) of the tabs (2, 3) are coupled to each other by a coupling portion (4). A cylindrical portion (5) to which a shaft (30) is joined extends from the coupling portion (4). From second end portions (2b, 3b) to intermediate portions (2c, 3c) of the tabs (2, 3), relief recesses (9, 10) are formed on the inside surfaces (7, 8) of the tabs (2a, 3a), respectively. By the relief recesses (9, 10), a columnar relief space (11) is defined between the tabs (2, 3). The cylindrical portion (5) includes a slit (14) extending in an axial direction of the cylindrical portion (5).Type: ApplicationFiled: November 29, 2004Publication date: November 8, 2007Inventors: Shigetaka Kinme, Tae Kamikawa, Masako Ueno, Seijun Inoue, Katsuhiko Ikeda
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Patent number: 7275458Abstract: A tilt steering assembly includes a support shaft extended along a tilt central axis. The support shaft is conductively assembled to a steering column and is unitarily rotated with the steering column during tilt adjustment. A resilient conductive member is interposed between a conductive end member provided at an end of the support shaft and a conductive fixed side plate including a support hole for supporting the support shaft. The steering column is grounded via the support shaft, the end member, the conductive member and the fixed side plate.Type: GrantFiled: June 15, 2004Date of Patent: October 2, 2007Assignee: Jtekt CorporationInventors: Shigetaka Kinme, Kenichi Aota
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Patent number: 7241068Abstract: The coupling structure includes: a shaft body 1 having an engagement portion 11 with a slip-off preventing groove; a shaft joint body 2 having an engagement groove 21 with which the engagement portion 11 is engaged and bores 22 and 23 facing the engagement groove 21; a locking body 3 press-fitted into the bore 23; and a plate body 5 having regulating tongues 51 for regulating movement of the shaft body 1, a supported portion 56 extending from the regulating tongues 51 and supported between the locking body 3 and the shaft joint body 2, and a projection 57 projecting from the supported portion 56. The shaft joint body 2 and/or the locking body 3 have a recessed portion 27 into which the projection 57 is fitted.Type: GrantFiled: January 26, 2004Date of Patent: July 10, 2007Assignee: Jtekt CorporationInventors: Kenichi Aota, Shigetaka Kinme
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Patent number: 7168741Abstract: A first housing rotatably supports a steering shaft having an end portion coupled to a steering wheel. A second housing engages with the first housing via two impact energy absorbing rings separate from each other in the axial direction. The first housing and the second housing are relatively movable in the axial direction. One of the first housing and the second housing has first and second impact energy absorbing protrusions projected from positions between the impact energy absorbing rings separately in the axial direction so as to contact with the circumferential surface of the other of the first housing and the second housing. The impact energy absorbing protrusions therefore reduce the load applied to the impact energy absorbing rings in usual steering. Further, the impact energy absorbing rings reduce the load due to frictional resistance in impact energy absorption.Type: GrantFiled: November 25, 2003Date of Patent: January 30, 2007Assignees: Koyo Seiko Co., Ltd, Fujikiko Kabushiki KaishaInventors: Shigetaka Kinme, Kenichi Aota, Yasunori Takeda, Satoshi Kinoshita
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Patent number: 7127921Abstract: Engagement parts 52c of the locking device for a steering shaft are formed on a side face of a driven gear of a reduction gear mechanism which is fastened to a steering shaft 2. Since a locking part 6a is arranged near the reduction gear mechanism, elements related to a locking function can be removed from the key cylinder of the engine key, so that the key cylinder of the engine key can be downsized, or can be arranged in another position. Consequently, even in a state where a reduction gear mechanism, a steering assist motor and the like are arranged in the middle of the steering shaft, a longer stroke of the impact absorbing mechanism in comparison with conventional mechanisms can be ensured, utilizing a decrease in length of the downsized or reduced key cylinder in the axial direction of the steering shaft 2.Type: GrantFiled: February 26, 2003Date of Patent: October 31, 2006Assignee: Koyo Seiko Co., Ltd.Inventors: Shigetaka Kinme, Norio Hosomi, Kenichi Aota
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Publication number: 20060204326Abstract: An erroneous assembling preventing tool for a universal joint prevents a shaft from being fixed to a cylindrical section of a yoke main body of the universal joint by fastening a bolt in a state where the shaft is not inserted into a normal position of an axial direction of the cylindrical section. The erroneous assembling preventing tool comprises a fixing section fixed to the yoke main body, a prevention section arranged between first and second tabs of the yoke main body, and a driving section for driving a prevention section. The prevention section is displaceable to a prevention position at which an end of the bolt can be prevented from being inserted through a screw hole of the second tab of the yoke and a prevention release position. The driving section displaces the prevention section to the prevention release position when it is pressed by an end of the shaft inserted into the normal position of the axial direction of the cylindrical section.Type: ApplicationFiled: February 17, 2006Publication date: September 14, 2006Inventors: Shigetaka Kinme, Mitsuharu Ozaki, Katsutoshi Nishizaki, Akio Kobayashi, Takehiko Ozawa
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Publication number: 20050016314Abstract: A tilt steering assembly includes a support shaft extended along a tilt central axis. The support shaft is conductively assembled to a steering column and is unitarily rotated with the steering column during tilt adjustment. A resilient conductive member is interposed between a conductive end member provided at an end of the support shaft and a conductive fixed side plate including a support hole for supporting the support shaft. The steering column is grounded via the support shaft, the end member, the conductive member and the fixed side plate.Type: ApplicationFiled: June 15, 2004Publication date: January 27, 2005Inventors: Shigetaka Kinme, Kenichi Aota
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Publication number: 20040185947Abstract: A shaft body has an engagement portion with a slip-off preventing groove, and a positioning recess extending from the engagement portion. A shaft joint having an engagement groove to be engaged with the engagement portion and a bore facing the engagement groove is provided with a flexible member which is provided on an outer side in a longitudinal direction of the engagement groove to be engaged with the positioning recess. When an insufficient amount of engagement prevents engagement in the correct position, the engagement portion contacts with the flexible member and prevents the shaft body from engaging with the shaft joint. When canceling the coupling for maintenance, etc., the engagement of the flexible member with the positioning recess is cancelled by deflecting the flexible member in a width direction of the engagement groove. Consequently, the shaft body can be easily pulled out in a longitudinal direction of the engagement groove.Type: ApplicationFiled: March 8, 2004Publication date: September 23, 2004Applicants: Koyo Seiko Co., Ltd., NISSAN MOTOR CO., LTD.Inventors: Shigetaka Kinme, Kenichi Aota, Tadakatsu Take
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Patent number: 6782771Abstract: A steering assist system which transmits the rotation of an electric motor to a steering shaft via a worm shaft and a worm wheel meshed with a worm of the worm shaft, where an output shaft of the electric motor and the worm shaft are interconnected via a joint. The joint includes a cylindrical first transmission member mounted on the output shaft, a cylindrical second transmission member to which the worm shaft is mounted, and a cylindrical elastic body interposed between the first and second transmission members. The joint may further include a torque limiter including a spring which is interposed between an end surface of the second transmission member and a spring seat formed at an end surface of a third transmission member in opposed relation with the end surface of the second transmission member for inhibiting relative rotation between the second and third transmission members.Type: GrantFiled: January 18, 2002Date of Patent: August 31, 2004Assignee: Koyo Seiko Co., Ltd.Inventors: Kunihiro Oka, Osamu Sano, Takeo Iino, Masanori Kobayashi, Shigetaka Kinme
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Publication number: 20040156670Abstract: The coupling structure includes: a shaft body 1 having an engagement portion 11 with a slip-off preventing groove; a shaft joint body 2 having an engagement groove 21 with which the engagement portion 11 is engaged and bores 22 and 23 facing the engagement groove 21; a locking body 3 press-fitted into the bore 23; and a plate body 5 having regulating tongues 51 for regulating movement of the shaft body 1, a supported portion 56 extending from the regulating tongues 51 and supported between the locking body 3 and the shaft joint body 2, and a projection 57 projecting from the supported portion 56. The shaft joint body 2 and/or the locking body 3 have a recessed portion 27 into which the projection 57 is fitted.Type: ApplicationFiled: January 26, 2004Publication date: August 12, 2004Applicant: Koyo Seiko Co., Ltd.Inventors: Kenichi Aota, Shigetaka Kinme
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Publication number: 20040104567Abstract: A first housing 3 for rotatably supporting a steering shaft having an end portion coupled to a steering wheel, or a second housing 5 engaged with the first housing 3 via two impact energy absorbing rings 6 and 7 separated in the axial direction so as to be relatively movable in the axial direction, has first and second impact energy absorbing protrusions 8 and 9 projected from positions between the impact energy absorbing rings 6 and 7 separately in the axial direction so as to contact with the circumferential surface of the other of the first housing 3 and the second housing 5. The impact energy absorbing protrusions 8 and 9 therefore can reduce the load applied to the impact energy absorbing rings 6 and 7 in usual steering and the impact energy absorbing rings 6 and 7 can reduce the load due to frictional resistance in impact energy absorption.Type: ApplicationFiled: November 25, 2003Publication date: June 3, 2004Applicants: Koyo Seiko Co., Ltd., Fujikiko Kabushiki KaishaInventors: Shigetaka Kinme, Kenichi Aota, Yasunori Takeda, Satoshi Kinoshita
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Publication number: 20040091308Abstract: A covering member 13 is attached for covering a shaft coupling portion 10a of a yoke 10. Provided at the covering member 13 is an L-shaped salient tongue 13c which projects inwardly of the shaft coupling portion 10a. A groove portion 12f is formed at a bolt-width portion 12a of a pinion shaft 12. The groove portion 12f has a width in the axial direction with a center at a position which opposes the salient tongue 13c when the bolt-width portion 12a is arranged at a set position in the shaft coupling portion 10a. When the bolt-width portion 12a of the pinion shaft 12 is inserted through an opening portion 10g of the shaft coupling portion 10a, insertion is prohibited unless the salient tongue 13c is inserted into the groove portion 12f, so that a problem of poor insertion positioning of a shaft in a yoke is solved.Type: ApplicationFiled: October 30, 2003Publication date: May 13, 2004Inventors: Shigetaka Kinme, Kenichi Aota, Hirohisa Suzuki
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Patent number: 6708796Abstract: An electric power steering apparatus in which a shaft of a worm interlocking with rotation of a motor for steering assistance is movable in a radial direction, a pressing body for pressing the worm toward a worm wheel is provided, and the pressing body is provided with a V-shaped contact portion to abut in two circumferential positions of the shaft and an annular elastic body for restricting movement of the pressing body in a direction crossing the radial direction.Type: GrantFiled: May 18, 2001Date of Patent: March 23, 2004Assignee: Koyo Seiko Co., Ltd.Inventors: Shigetaka Kinme, Tatsuhiro Yamamoto, Susumu Imagaki, Osamu Sano, Kunihiro Oka, Tomoyuki Takei, Masanori Kobayashi, Yoshio Ito, Tatsuo Otsuka
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Publication number: 20030160413Abstract: Engagement parts 52c of the locking device for a steering shaft are formed on a side face of a driven gear of a reduction gear mechanism which is fastened to a steering shaft 2. Since a locking part 6a is arranged near the reduction gear mechanism, elements related to a locking function can be removed from the key cylinder of the engine key, so that the key cylinder of the engine key can be downsized, or can be arranged in another position. Consequently, even in a state where a reduction gear mechanism, a steering assist motor and the like are arranged in the middle of the steering shaft, a longer stroke of the impact absorbing mechanism in comparison with conventional mechanisms can be ensured, utilizing a decrease in length of the downsized or reduced key cylinder in the axial direction of the steering shaft 2.Type: ApplicationFiled: February 26, 2003Publication date: August 28, 2003Inventors: Shigetaka Kinme, Norio Hosomi, Kenichi Aota
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Publication number: 20020096005Abstract: In a steering assist system for providing steering assist by transmitting the rotation of an electric motor to a steering shaft via a worm shaft and a worm wheel meshed with a worm of the worm shaft, an output shaft of the electric motor and the worm shaft are inteconnected via a joint. The joint includes a cylindrical first transmission member mounted on the output shaft, a cylindrical second transmission member to which the worm shaft is mounted, and a cylindrical elastic body formed of rubber or the like and interposed between the first and second transmission members.Type: ApplicationFiled: January 18, 2002Publication date: July 25, 2002Inventors: Kunihiro Oka, Osamu Sano, Takeo Iino, Masanori Kobayashi, Shigetaka Kinme
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Publication number: 20020017420Abstract: An electric power steering apparatus in which a shaft of a worm interlocking with rotation of a motor for steering assistance is movable in a radial direction, a pressing body for pressing the worm toward a worm wheel is provided, and the pressing body is provided with a V-shaped contact portion to abut in two circumferential positions of the shaft and an annular elastic body for restricting movement of the pressing body in a direction crossing the radial direction.Type: ApplicationFiled: May 18, 2001Publication date: February 14, 2002Applicant: KOYO SEIKO CO., LTD.Inventors: Shigetaka Kinme, Tatsuhiro Yamamoto, Susumu Imagaki, Osamu Sano, Kunihiro Oka, Tomoyuki Takei, Masanori Kobayashi, Yoshio Ito, Tatsuo Otsuka