Patents by Inventor Rikiya Kunii
Rikiya Kunii 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: 7309289Abstract: A first mark for indicating the direction of the rotational unbalance of a propeller shaft is provided on the propeller shaft while a second mark for indicating the direction of the rotational unbalance of a companion flange is provided on the companion flange, which is to be connected to the propeller shaft at a rotation-transmitting device. One of the directions of the rotational unbalances indicated by the first mark and the second mark is set as a direction along which the rotating mass becomes larger while the other is set as a direction along which the rotating mass becomes smaller, and one of the first mark and the second mark is provided over an angular region with a predetermined angle around an axis.Type: GrantFiled: December 7, 2004Date of Patent: December 18, 2007Assignee: Honda Motor Co., Ltd.Inventors: Rikiya Kunii, Yasushi Sugiura
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Patent number: 7059453Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed through an annular brake guide inside the fixed housing, an exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member arranged radially outside of the core member. Each of the core member and the armature member has a plurality of tapering surfaces. The tapering surfaces of the core member are respectively complementary in shape to the tapering surfaces of the armature member. The electromagnetic brake further includes a cylindrical pressure member movable in a direction of pressing the multiplate brake mechanism. The cylindrical pressure member has one end fixed to the armature member and another end engaged with the multiplate brake mechanism.Type: GrantFiled: June 26, 2003Date of Patent: June 13, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yoichiro Yamamoto, Katsuhiro Kitamura, Rikiya Kunii, Keiichi Ooiso, Kenji Honda, Akihiro Iwazaki
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Patent number: 7044879Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed in the fixed housing, an annular exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member opposed to the annular groove of the core member and having an outer diameter larger than the outer diameter of the core member. The electromagnetic brake further includes an annular pressure plate axially and movably mounted on the fixed housing at one end portion of the multiplate brake mechanism adjacent to the core member, and a cylindrical pressure member provided so as to surround the outer circumferential surface of the core member and be movable in a direction of pressing the multiplate brake mechanism as being guided by the core member.Type: GrantFiled: January 3, 2005Date of Patent: May 16, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii
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Patent number: 7002444Abstract: An electromagnetic coil assembly has a main coil having a first end and a second end, the main coil being wound without a bobbin, a first cover fitted over the main coil from the first end of the main coil, a second cover fitted over the main coil from the second end of the main coil and a molding resin covering the first and second covers.Type: GrantFiled: March 29, 2004Date of Patent: February 21, 2006Assignee: Honda Motor Co., Ltd.Inventors: Akihiro Iwazaki, Rikiya Kunii
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Publication number: 20050126285Abstract: According to the present invention, a first mark for indicating the direction of the rotational unbalance of a propeller shaft is provided on the propeller shaft while a second mark for indicating the direction of the rotational unbalance of a companion flange is provided on the companion flange, which is to be connected to the propeller shaft at a rotation-transmitting device. One of the directions of the rotational unbalances indicated by the first mark and the second mark is set as a direction along which the rotating mass becomes larger while the other is set as a direction along which the rotating mass becomes smaller, and one of the first mark and the second mark is provided over an angular region with a predetermined angle around an axis.Type: ApplicationFiled: December 7, 2004Publication date: June 16, 2005Applicant: HONDA MOTOR CO., LTD.Inventors: Rikiya Kunii, Yasushi Sugiura
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Publication number: 20050115782Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed in the fixed housing, an annular exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member opposed to the annular groove of the core member and having an outer diameter larger than the outer diameter of the core member. The electromagnetic brake further includes an annular pressure plate axially and movably mounted on the fixed housing at one end portion of the multiplate brake mechanism adjacent to the core member, and a cylindrical pressure member provided so as to surround the outer circumferential surface of the core member and be movable in a direction of pressing the multiplate brake mechanism as being guided by the core member.Type: ApplicationFiled: January 3, 2005Publication date: June 2, 2005Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii
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Patent number: 6854571Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed in the fixed housing, an annular exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member opposed to the annular groove of the core member and having an outer diameter larger than the outer diameter of the core member. The electromagnetic brake further includes an annular pressure plate axially and movably mounted on the fixed housing at one end portion of the multiplate brake mechanism adjacent to the core member, and a cylindrical pressure member provided so as to surround the outer circumferential surface of the core member and be movable in a direction of pressing the multiplate brake mechanism as being guided by the core member.Type: GrantFiled: July 19, 2002Date of Patent: February 15, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii
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Patent number: 6811001Abstract: An electromagnetic brake, interposed between a stationary housing and a rotational member, includes a multi-plate brake mechanism, a ring-like core member fixed within the housing, an exciting coil accommodated in a groove in the core member, and a ring-like armature disposed so as to confront the annular groove in the core member. The electromagnetic brake includes a cylindrical press member which having one end fixed to an outer circumferential portion of the armature and the other end engaged with the multi-plate brake mechanism and fitted on the core member, and also a cylindrical guide member having one end fixed to an inner circumferential portion of the armature and the other end fitted in the core member so that the armature is guided by the core member so as to move in the direction in which the multi-plate brake mechanism is pressed.Type: GrantFiled: July 23, 2003Date of Patent: November 2, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshio Hiyoshi, Rikiya Kunii
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Publication number: 20040212473Abstract: An electromagnetic coil assembly has a main coil having a first end and a second end, the main coil being wound without a bobbin, a first cover fitted over the main coil from the first end of the main coil, a second cover fitted over the main coil from the second end of the main coil and a molding resin covering the first and second covers.Type: ApplicationFiled: March 29, 2004Publication date: October 28, 2004Applicant: HONDA MOTOR CO., LTD.Inventors: Akihiro Iwazaki, Rikiya Kunii
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Patent number: 6761662Abstract: An electromagnetic coupling apparatus interposed between a fixed housing and a rotating member. The electromagnetic coupling apparatus includes a multiplate brake mechanism, a ringlike core member fixed in the housing, an annular exciting coil accommodated in an annular groove of the core member, and a ringlike armature member opposed to the annular groove of the core member. The armature member has an outer diameter larger than the outer diameter of the core member. The electromagnetic brake further includes a cylindrical pressure member having one end fixed to an outer circumferential portion of the armature member and the other end engaged with the multiplate brake mechanism. The cylindrical pressure member surrounds the core member so as to be movable in a direction of applying a pressure to the multiplate brake mechanism as being guided by the core member. The opposed portion between the core member and the armature member is formed by tapered end surfaces each having a predetermined tapered angle.Type: GrantFiled: February 5, 2003Date of Patent: July 13, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Shin Aoki, Rikiya Kunii
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Publication number: 20040129511Abstract: An electromagnetic brake, interposed between a stationary housing and a rotational member, includes a multi-plate brake mechanism, a ring-like core member fixed within the housing, an exciting coil accommodated in a groove in the core member, and a ring-like armature disposed so as to confront the annular groove in the core member. The electromagnetic brake includes a cylindrical press member which having one end fixed to an outer circumferential portion of the armature and the other end engaged with the multi-plate brake mechanism and fitted on the core member, and also a cylindrical guide member having one end fixed to an inner circumferential portion of the armature and the other end fitted in the core member so that the armature is guided by the core member so as to move in the direction in which the multi-plate brake mechanism is pressed.Type: ApplicationFiled: July 23, 2003Publication date: July 8, 2004Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Toshio Hiyoshi, Rikiya Kunii
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Publication number: 20040040801Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed through an annular brake guide inside the fixed housing, an exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member arranged radially outside of the core member. Each of the core member and the armature member has a plurality of tapering surfaces. The tapering surfaces of the core member are respectively complementary in shape to the tapering surfaces of the armature member. The electromagnetic brake further includes a cylindrical pressure member movable in a direction of pressing the multiplate brake mechanism. The cylindrical pressure member has one end fixed to the armature member and another end engaged with the multiplate brake mechanism.Type: ApplicationFiled: June 26, 2003Publication date: March 4, 2004Applicant: Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JapanInventors: Yoichiro Yamamoto, Katsuhiro Kitamura, Rikiya Kunii, Keiichi Ooiso, Kenji Honda, Akihiro Iwazaki
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Patent number: 6672443Abstract: The object of the present invention is to provide an electromagnetic friction connecting apparatus, which allows the easier operations associated with the installation of an exciting coil or a search coil in a core element. Input and output terminals having second horizontal parts extending in the vehicle inward direction and second vertical parts extending from the ends of the second horizontal parts into the radial outward direction are provided for the exciting coil and the search coil. Each end of the second vertical parts is situated radially inside a periphery surface of the exciting coil. Holes which allow the respective ends of the second vertical parts of the input and output terminals to face the outside are made on the core element and the housing. They are connected to the ends of the second vertical parts of the input and output terminals by inserting couplers into these holes.Type: GrantFiled: July 19, 2002Date of Patent: January 6, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii, Kenji Honda
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Publication number: 20030186773Abstract: An electromagnetic coupling apparatus interposed between a fixed housing and a rotating member. The electromagnetic coupling apparatus includes a multiplate brake mechanism, a ringlike core member fixed in the housing, an annular exciting coil accommodated in an annular groove of the core member, and a ring-like armature member opposed to the annular groove of the core member. The armature member has an outer diameter larger than the outer diameter of the core member. The electromagnetic brake further includes a cylindrical pressure member having one end fixed to an outer circumferential portion of the armature member and the other end engaged with the multiplate brake mechanism. The cylindrical pressure member surrounds the core member so as to be movable in a direction of applying a pressure to the multiplate brake mechanism as being guided by the core member. The opposed portion between the core member and the armature member is formed by tapered end surfaces each having a predetermined tapered angle.Type: ApplicationFiled: February 5, 2003Publication date: October 2, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Akihiro Iwazaki, Shin Aoki, Rikiya Kunii
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Publication number: 20030075395Abstract: An electromagnetic brake interposed between a fixed housing and a rotating member. The electromagnetic brake includes a multiplate brake mechanism, a ringlike core member fixed in the fixed housing, an annular exciting coil accommodated in an annular groove formed on the core member, and a ringlike armature member opposed to the annular groove of the core member and having an outer diameter larger than the outer diameter of the core member. The electromagnetic brake further includes an annular pressure plate axially and movably mounted on the fixed housing at one end portion of the multiplate brake mechanism adjacent to the core member, and a cylindrical pressure member provided so as to surround the outer circumferential surface of the core member and be movable in a direction of pressing the multiplate brake mechanism as being guided by the core member.Type: ApplicationFiled: July 19, 2002Publication date: April 24, 2003Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii
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Publication number: 20030047408Abstract: The object of the present invention is to provide an electromagnetic friction connecting apparatus, which allows the easier operations associated with the installation of an exciting coil or a search coil in a core element. Input and output terminals having second horizontal parts extending in the vehicle inward direction and second vertical parts extending from the ends of the second horizontal parts into the radial outward direction are provided for the exciting coil and the search coil. Each end of the second vertical parts is situated radially inside a periphery surface of the exciting coil. Holes which allow the respective ends of the second vertical parts of the input and output terminals to face the outside are made on the core element and the housing. They are connected to the ends of the second vertical parts of the input and output terminals by inserting couplers into these holes.Type: ApplicationFiled: July 19, 2002Publication date: March 13, 2003Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Akihiro Iwazaki, Rikiya Kunii, Kenji Honda
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Patent number: 6422365Abstract: In a power transmission system for a four-wheel drive vehicle, a multiple disk clutch for distributing a proportion of the torque of the front wheels to the rear wheels is provided between a driving shaft which is connected to the front wheels which are main driven wheels and a driven shaft which is connected to the rear wheels which are auxiliary driven wheels. Between the driving shaft and the driven shaft a torque cam mechanism, a hydraulic pump and a bidirectional clutch mechanism are provided, in that order. When the rotational rate of the front wheels exceeds the rotational rate of the rear wheels, the bidirectional clutch mechanism is engaged, a first rotor of the hydraulic pump which is operatively connected to the front wheels and a second rotor which is operatively connected to the rear wheels rotate relative to each other, and a rotational load is generated by a hydraulic circuit.Type: GrantFiled: November 30, 2000Date of Patent: July 23, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Kentaro Arai, Rikiya Kunii
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Patent number: 6386348Abstract: A multiple plate clutch 11 is provided between a drive shaft 5 continuously extending to front wheels which are main wheels and a driven shaft continuously extending to rear wheels. which are sub-drive wheels for distributing a part of the torque on the front wheels to the rear wheels. A tow-way clutch mechanism in which the drive shaft 5 is connected to a single hydraulic pump 26 via a clutch outer 17 and a sleeve 31 locks when the rotation speed of the drive shaft 5 exceeds the rotation speed of the driven shaft 6 beyond a predetermined rate to thereby drive the hydraulic pump 26 so as to put the vehicle in a four-wheel drive condition, irrespective of the straight-ahead or straight-backward running operation of the vehicle, i.e., irrespective of the rotating direction of the drive shaft 5.Type: GrantFiled: November 28, 2000Date of Patent: May 14, 2002Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Rikiya Kunii
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Publication number: 20010002629Abstract: In a power transmission system for a four-wheel drive vehicle, a multiple disk clutch for distributing a proportion of the torque of the front wheels to the rear wheels is provided between a driving shaft which is connected to the front wheels which are main driven wheels and a driven shaft which is connected to the rear wheels which are auxiliary driven wheels. Between the driving shaft and the driven shaft a torque cam mechanism, a hydraulic pump and a bidirectional clutch mechanism are provided, in that order. When the rotational rate of the front wheels exceeds the rotational rate of the rear wheels, the bidirectional clutch mechanism is engaged, a first rotor of the hydraulic pump which is operatively connected to the front wheels and a second rotor which is operatively connected to the rear wheels rotate relative to each other, and a rotational load is generated by a hydraulic circuit.Type: ApplicationFiled: November 30, 2000Publication date: June 7, 2001Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Kentaro Arai, Rikiya Kunii
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Patent number: 6089364Abstract: A hydraulic pressure-control valve for controlling a pressure to be supplied to a frictional engaging element such as a start clutch in an automatic vehicle transmission, including a first pressure-regulating valve connected to a hydraulic pressure source and connected to the frictional engaging element through a second passage, and a solenoid for displacing the first-pressure-regulating valve.Type: GrantFiled: June 28, 1999Date of Patent: July 18, 2000Assignee: Honda Giken Kogyo Kabushiki KaishaInventor: Rikiya Kunii