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公开(公告)号：USD836370S1
公开(公告)日：2018-12-25
申请号：US29556080
申请日：2016-02-26
申请人： NTN CORPORATION
设计人： Kyohei Sasanuma , Yumiko Mineno
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公开(公告)号：US10302156B2
公开(公告)日：2019-05-28
申请号：US14912245
申请日：2014-08-08
申请人： NTN CORPORATION
发明人： Naotsugu Kitayama , Kyohei Sasanuma , Marina Fukunari , Takahide Saito , Koji Sato , Masahiro Kawai
IPC分类号： F16D41/08 , F16D27/112 , F16D27/108 , F16D23/12
摘要： A rotation transmission device is provided in which leakage of magnetism from an armature to a control retainer is reduced, and of which a two-way clutch can be operated accurately and reliably. This device includes a restricting arrangement for restricting the fitting amount between a coupling tube of the armature and a tubular portion of the control retainer such that a gap is defined between a back surface of the armature, with respect to its surface to be attracted to a rotor, and an end surface of the tubular portion, to prevent leakage of magnetism from the back surface of the armature to the end surface of the tubular portion when an electromagnet is energized and the armature is pulled to the rotor.
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公开(公告)号：US12078220B2
公开(公告)日：2024-09-03
申请号：US18043870
申请日：2022-01-26
发明人： Kunihiro Mikasa , Yasumasa Hibi , Kyohei Sasanuma , Shaoluan Bian
摘要： Provided is a clutch unit in which an output-side outer ring member is attached to a base plate without welding. A clutch unit (100) includes an output-side clutch (60) and a housing (11) that accommodates the output-side clutch (60). The output-side clutch (60) includes an output-side outer ring member (62). The output-side outer ring member (62) and the housing (11) have an engagement protrusion (62s) and an engagement groove (11s) that engage with each other to restrict relative rotation therebetween.
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公开(公告)号：US10151357B2
公开(公告)日：2018-12-11
申请号：US14763527
申请日：2014-01-16
申请人： NTN CORPORATION
发明人： Naotsugu Kitayama , Marina Fukunari , Kyohei Sasanuma , Koji Akiyoshi , Masahiro Kawai , Takahide Saito , Koji Sato
IPC分类号： F16D27/112 , F16D27/14 , F16D41/08 , F16D27/08 , F16D27/10 , F16D27/108 , F16D27/102 , F16D41/10 , F16D41/07 , F16D23/12
摘要： A rotation transmission device is configured such that when an electromagnet of an electromagnetic clutch is energized, an armature is attracted toward a rotor, so that a control retainer defining a two-way clutch is moved in an axial direction, whereby the control retainer and a rotary retainer are rotated relative to each other in a direction in which circumferential widths of pockets decrease, thereby disengaging pairs of rollers from an inner periphery of an outer ring and an outer periphery of an inner ring. The rotation transmission device includes a shock absorbing member on a surface of the armature facing the rotor, the shock absorbing member being configured to absorb impact force when the armature is attracted to the rotor by being elastically deformed.
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公开(公告)号：US12097787B2
公开(公告)日：2024-09-24
申请号：US18043817
申请日：2022-01-26
IPC分类号： F16D41/063 , B60N2/16 , F16D41/08
CPC分类号： B60N2/1635 , F16D41/063 , F16D41/084
摘要： A clutch unit includes an operation lever, an operation member, an input-side clutch, an output-side clutch, and a bottomed cylindrical housing. The input-side clutch includes an input-side inner ring member and an operation bracket. The operation bracket includes an engagement portion that engages with the input-side inner ring member, a facing portion that faces the bottom surface of the housing with a gap therebetween, a fastened portion that penetrates a through hole formed in the bottom surface of the housing and is fastened to the operation member, and a sliding-contact portion that extends from the facing portion toward the bottom surface of the housing and comes into sliding-contact with the bottom surface of the housing.
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公开(公告)号：US11149802B2
公开(公告)日：2021-10-19
申请号：US17059069
申请日：2019-05-29
发明人： Kunihiro Mikasa , Kyohei Sasanuma
IPC分类号： F16D41/067 , B60N2/04
摘要： A clutch unit used for a vehicle seat includes an input side clutch is configured such that one member of the input side inner ring member and the input side outer ring member rotates with a rotation of the operation lever, and the other member of the input side inner ring member and the input side outer ring member is rotated via the input side transmission member, so that the rotation of the operation lever is transmitted to the output side clutch. A rotation suppressing member configured to urge the other member in the rotation axis direction and apply a rotational resistance force greater than a force for the co-rotating is provided so as to suppress co-rotation of the other member. A pressing force transmission portion configured to transmit a force the rotation suppressing member urges in the rotation axis direction to the output side transmission member is provided.
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公开(公告)号：US10794483B2
公开(公告)日：2020-10-06
申请号：US15500303
申请日：2015-07-17
申请人： NTN CORPORATION
IPC分类号： F16K11/07 , F16K31/50 , F16H25/22 , F16H63/06 , F16K31/53 , F16K31/04 , F16H61/02 , B60W10/04 , B60W10/101 , F15B13/04 , F16K11/065 , F16H63/30 , F16H25/20 , F16H61/66
摘要： A spool valve includes a spool in a spool insertion hole defined in a valve body. The spool is configured to be moved by an electric motor via a ball-screw to a first position where an input port is in communication with an output port, while the output port is not in communication with a drain port, and to a second position where the input port is not in communication with the output port, while the output port is in communication with the drain port.
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公开(公告)号：US11708012B2
公开(公告)日：2023-07-25
申请号：US17059047
申请日：2019-05-29
发明人： Kunihiro Mikasa , Kyohei Sasanuma
IPC分类号： F16D41/066 , B60N2/16 , B60N2/90 , B60N2/18 , F16D41/08
CPC分类号： B60N2/165 , B60N2/1864 , B60N2/933 , F16D41/066 , F16D41/08
摘要： A clutch unit used for a vehicle seat includes an input side clutch configured such that one member of an input side inner ring member and an input side outer ring member rotates with a rotation of an operation lever, and the other member is rotated via an input side transmission member, so that a rotation of the operation lever is transmitted to an output side clutch. A rotation suppressing member configured to apply a rotational resistance force greater than a force for the co-rotating is provided between the other member and a member that does not rotate during a return operation of the operation lever, so as to suppress co-rotation of the other member by the one member during the return operation to the neutral position.
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公开(公告)号：US11434962B2
公开(公告)日：2022-09-06
申请号：US17288994
申请日：2019-10-25
申请人： NTN Corporation
发明人： Kyohei Sasanuma
摘要： A clutch unit includes a lever-side clutch section configured to control transmission and interruption of rotational torque input by a rotation of an operation lever, and a brake-side clutch section configured to transmit the rotational torque from the lever-side clutch section to an output side and interrupt rotational torque that is reversely input from the output side. The lever-side clutch section includes a side plate to which the operation lever is fixed and an outer ring member that fits with the side plate. The brake-side clutch section includes a cover whose rotation is restricted. An angle regulating part configured to regulate a rotation angle of the operation lever is disposed radially inside of outer peripheral edges of the outer ring member and the cover and includes a claw of the outer ring member and a through hole of the cover.
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公开(公告)号：US10408281B2
公开(公告)日：2019-09-10
申请号：US15113616
申请日：2015-01-26
申请人： NTN CORPORATION
发明人： Marina Fukunari , Takahide Saito , Koji Sato , Makoto Tokuda , Kyohei Sasanuma , Motohiro Tada , Naotsugu Kitayama
IPC分类号： F16D41/08 , F16D27/10 , F16D41/066 , F16F1/373 , F16F1/376 , F16D23/12 , F16D27/112 , F16D27/14 , F16D41/10
摘要： A rotation transmission device is provided in which a collision sound by an armature and a rotor is less likely to occur, and further the armature is stably attracted to the rotor. A buffer is provided between the armature and the rotor. The buffer is constituted by a metal annulus axially movably supported by the armature, and a rubber annulus configured such that as the armature approaches the rotor, the rubber annulus is axially compressed by the metal annulus and the armature. The rubber annulus has different axial thicknesses at different circumferential locations thereof such that when the degree of axial compression of the rubber annulus is large, the rubber annulus is axially compressed in its longer circumferential area than when the degree of axial compression of the rubber annulus is small.
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