公开(公告)号：US09976608B2

公开(公告)日：2018-05-22

申请号：US15024998

申请日：2014-09-25

申请人： NTN CORPORATION

发明人： Koji Akiyoshi ,  Koji Sato ,  Naotsugu Kitayama ,  Takahide Saito

IPC分类号： F16D47/04 ,  F16D21/08 ,  F16D27/118 ,  F16D41/067 ,  F16D41/08

CPC分类号： F16D47/04 ,  F16D21/08 ,  F16D27/118 ,  F16D41/067 ,  F16D41/088

摘要： When a control retainer and a rotary retainer rotate relative to each other, a plurality of pairs of rollers received in respective pockets are pushed by pillars so as to move to their disengaged position. An anti-rotation arrangement is provided between an outer ring and the control retainer. The anti-rotation arrangement prevents the control retainer from rotating relative to the outer ring when the rollers are engaged, so that that the rollers does not move to their neutral position. This increases reliability. The anti-rotation arrangement includes a plurality of first protrusions formed on the surface of the outer ring, and a plurality of second protrusions formed on the surface of the control retainer axially opposed to the surface of the outer ring. Heat treatment is performed to the first and second protrusions so as to increase the hardness thereof.

公开(公告)号：US10814749B2

公开(公告)日：2020-10-27

申请号：US16325463

申请日：2017-07-31

申请人： NTN CORPORATION

发明人： Naotsugu Kitayama ,  Koji Sato

IPC分类号： B60N2/18 ,  F16D41/067 ,  B60N2/16 ,  F16D41/08 ,  F16D41/06 ,  F16D41/02 ,  F16D41/10 ,  F16D67/02 ,  F16D15/00

摘要： A clutch unit includes a lever-side clutch part to control transmission and interruption of rotational torque input through a lever operation and a brake-side clutch part to transmit the rotational torque from the lever-side clutch part to the output side and interrupt rotational torque reversely input from the output side. The brake-side clutch part includes an outer ring constrained in rotation, an output shaft to output the rotation, cylindrical rollers to control interruption of the rotational torque reversely input from the output shaft and transmission of the rotational torque input from the lever-side clutch part through engagement and disengagement between the outer ring and the output shaft, a friction ring to apply a rotational resistance to the output shaft, and a variable part to change the rotational resistance applied to the output shaft between the transmission and the interruption of the rotational torque.

公开(公告)号：US10683926B2

公开(公告)日：2020-06-16

申请号：US16065193

申请日：2016-12-16

申请人： NTN CORPORATION

发明人： Masahiro Kawai ,  Koji Sato

IPC分类号： F16H57/04 ,  B60K17/06 ,  F04C2/344 ,  F16D41/067 ,  F16H61/00 ,  F16D47/04 ,  B60K17/26 ,  F04B17/05 ,  F04C15/00 ,  F04B17/03

摘要： An oil pump driving device includes an oil pump to be driven by either of an engine and an electric motor, and is short in axial dimension. The oil pump driving device includes a first one-way clutch for transmitting motive power from the engine only in one direction, and a second one-way clutch for transmitting motive power from the electric motor only in the above one direction. The first one-way clutch is disposed within an opening formed in a partition wall of a transmission case. The oil pump includes a rotor having an inner peripheral portion defining a hollow space. The second one-way clutch is disposed inside of the inner peripheral portion of the rotor.

公开(公告)号：US11346403B2

公开(公告)日：2022-05-31

申请号：US17041236

申请日：2019-03-19

申请人： NTN CORPORATION

发明人： Takahide Saito ,  Koji Sato

IPC分类号： F16D27/112 ,  F16D1/10 ,  F16D41/08 ,  H01F7/08 ,  F16D121/20 ,  F16D49/00 ,  F16D51/00 ,  F16D65/16

摘要： A rotation braking device includes a clutch mechanism disposed between an inner member and an outer member. The clutch mechanism includes an electromagnetic actuator which controls relative rotation of the cage such that, due to the relative rotation, engaging elements are moved between an engaged position and a neutral position. An armature is rotationally fixed relative to the cage, and can be directly magnetically attracted to an electromagnet which is rotationally fixed relative a housing that houses the clutch mechanism. The outer member is directly supported in a radial direction by the housing and engages the housing so as to limit relative rotation relative to each other.

公开(公告)号：US10800294B2

公开(公告)日：2020-10-13

申请号：US16325461

申请日：2017-07-31

申请人： NTN CORPORATION

发明人： Koji Sato

IPC分类号： B60N2/16 ,  F16D41/08 ,  A47C7/02 ,  F16D15/00 ,  F16D67/02 ,  B60N2/18

摘要： A clutch unit includes a lever-side clutch part to control transmission and interruption of rotational torque input through lever operation, and a brake-side clutch part to transmit the rotational torque from the lever-side clutch part to an output side, and interrupt rotational torque reversely input from the output side. The brake-side clutch part includes a cover constrained in rotation, an output shaft to output the rotation, an inner ring to receive the rotational torque input from the lever-side clutch part, and a cylindrical roller to control interruption of the rotational torque from the output shaft and transmission of the rotational torque from the inner ring through engagement and disengagement between an outer ring and the output shaft. The inner ring includes a slide gear which meshes with the cover during interruption of the rotational torque and is released from the meshing state during transmission of the rotational torque.

公开(公告)号：US10731716B2

公开(公告)日：2020-08-04

申请号：US15758487

申请日：2016-08-31

申请人： NTN CORPORATION

发明人： Takahide Saito ,  Koji Sato ,  Kimihito Ushida

IPC分类号： F16D28/00 ,  F16D23/12 ,  F16H25/12 ,  F16H25/20 ,  F16D13/56 ,  F16H1/06 ,  F16H1/16

摘要： An automatic clutch device includes an axial force generating mechanism formed by an electric motor adjacent to the outer periphery of an end of an input shaft of a transmission, and a rotation-linear motion conversion mechanism for converting the rotation of the rotor of the electric motor to a linear motion of a release bearing. The rotation-linear motion conversion mechanism includes plural tubes having different diameters and slidably fitted one in another to form a telescopic tube assembly on the input shaft; and cam mechanisms each disposed between a respective opposed pair of the tubes for converting the rotation of the larger-diameter one of the pair of tubes to a linear motion of the smaller-diameter one of the pair.

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.

公开(公告)号：US09874250B2

公开(公告)日：2018-01-23

申请号：US15116571

申请日：2015-02-02

申请人： NTN CORPORATION

发明人： Naotsugu Kitayama ,  Shintaro Ishikawa ,  Koji Sato ,  Takahide Saito

IPC分类号： F16D27/108 ,  F16D41/067 ,  F16D41/066 ,  F16D41/08 ,  F16D23/12

CPC分类号： F16D27/108 ,  F16D41/066 ,  F16D41/067 ,  F16D41/088 ,  F16D2023/123

摘要： A rotation transmission device includes an electromagnetic clutch which selectively engages and disengages a two-way clutch configured to selectively perform and stop transmission of torque between an input shaft and an output shaft. A spring holder fitted on the input shaft prevents rollers from axially moving. Spring holding pieces mounted to the spring holder are formed with respective engagement surfaces engaging with cam surfaces of an outer periphery of an inner ring such that the spring holder is rotationally fixed.

公开(公告)号：US11788585B2

公开(公告)日：2023-10-17

申请号：US17627432

申请日：2020-07-15

申请人： NTN Corporation

发明人： Koji Sato

IPC分类号： F16D41/08 ,  F16D27/108 ,  F16J15/3232 ,  F16D23/12

CPC分类号： F16D41/088 ,  F16D27/108 ,  F16J15/3232 ,  F16D2023/123

摘要： A rotation transmission device is provided which includes rollers disposed between the inner periphery of an outer ring and the outer periphery of an inner ring; an armature supported to axially move when an electromagnet is energized; and a ball ramp mechanism which converts the axial movement of the armature into the motion/movement of a roller cage from an engaged position to a disengaged position. This rotation transmission device further incudes an annular cover member made of aluminum, an O-ring and an oil seal.

公开(公告)号：US10711851B2

公开(公告)日：2020-07-14

申请号：US16075725

申请日：2017-03-06

申请人： NTN CORPORATION

发明人： Koji Sato ,  Masahiro Kawai

IPC分类号： F16D41/067 ,  B60N2/90 ,  B60N2/16 ,  F16D41/10 ,  F16D63/00 ,  F16D59/00 ,  B60N2/04 ,  F16D41/08 ,  F16D127/00 ,  F16D41/06

摘要： A clutch unit includes a lever-side clutch part to control transmission of rotational torque input through a lever operation, and a brake-side clutch part to transmit the rotational torque from the lever-side clutch part to an output side, and interrupt rotational torque from the output side. The brake-side clutch part includes an outer ring constrained in rotation, an output shaft configured to output the rotation, a cage arranged between the outer ring and the output shaft to receive the rotational torque from the lever-side clutch part, and a cylindrical roller to control the interruption of the rotational torque from the output shaft and the transmission of the rotational torque input from the cage through engagement and disengagement between the outer ring and the output shaft.