公开(公告)号：US20240035528A1

公开(公告)日：2024-02-01

申请号：US18275724

申请日：2022-11-11

Applicant: NSK Ltd.

Inventor： Nagao DOHI ,  Shohei KANEKO

IPC: F16D43/18 ,  F16D41/08

CPC classification number: F16D43/18 ,  F16D41/08

Abstract: In a predetermined first state, a distance (D1) in a second direction between a contact portion (Pin) between a input-side engaging part (9) and an input-side engaging part (17) and a rotation center (O) is larger than a distance (D2) in the second direction between a contact portion (Pout) between an output-side engaging part (12) and an output-side engaged part (14) and the rotation center (O). In a locked state or a semi-locked state, a contact portion (C1) between the output-side engaging part (12) and the output-side engaged part (14) is located closer to the rotation center (O) of the output member (4) in a first direction than an imaginary straight line (L) connecting a contact portion (C2) between one pressing surface (13) of the pair of pressing surfaces (13) and a pressed surface (6) to the rotation center (O) of the output member (4).

公开(公告)号：US20190024751A1

公开(公告)日：2019-01-24

申请号：US16069702

申请日：2017-01-13

Applicant: NSK LTD.

Inventor： Nagao DOHI ,  Hiroki NISHII ,  Shohei KANEKO ,  Eisaku SUZUKI

IPC: F16F15/14 ,  F16F15/134

CPC classification number: F16F15/145 ,  F16F15/1202 ,  F16F15/131 ,  F16F15/134

Abstract: In the centrifugal pendulum damper, a plurality of pendulums are swingably supported on a rotating body. The pendulum includes a swinging shaft serving as the swing center and a rolling shaft including a rolling surface on the outer periphery thereof. The rotating body includes a plurality of pendulum support portions, and the pendulum support portion includes a swinging shaft guide portion that guides the swinging shaft in a radial direction of the rotating body, and a rolling shaft guide portion that is in rolling-contact with the rolling surface of the rolling shaft to cause the pendulum to swing around the swing axis.

公开(公告)号：US20230392653A1

公开(公告)日：2023-12-07

申请号：US18039565

申请日：2022-10-28

Applicant: NSK Ltd.

Inventor： Nagao DOHI ,  Shohei KANEKO

IPC: F16D41/08

CPC classification number: F16D41/082

Abstract: A distance (D1) between a rotation center (O) of an input member (3) and a contact portion (Pin) between an input side engaging portion (9) and an input side engaged portion (17) in a second direction is set to be shorter than a distance (D2) between a rotation center (O) of an output member (4) and a contact portion (Pout) between an output side engaging portion (12) and an output side engaged portion (14) in the second direction in a state in which a pair of pressing surfaces (13) is pressed against a pressed surface (6) in accordance with a rotation of the output member (4) in a predetermined direction and the input side engaging portion (9) engages with the input side engaged portion (17) in accordance with a rotation of the input member (3) in a direction opposite to the predetermined direction. In a locked or semi-locked state, a contact portion (C1) between the output side engaging portion (12) and the output side engaged portion (14) is located on the side closer to the rotation center (O) of the output member (4) in a first direction in relation to a virtual line (L) connecting the rotation center (O) of the output member (4) and a contact portion (C2) between one pressing surface (13) of the pair of pressing surfaces (13) and the pressed surface (6).

公开(公告)号：US20250129825A1

公开(公告)日：2025-04-24

申请号：US18682317

申请日：2023-04-20

Applicant: NSK LTD.

Inventor： Nagao DOHI ,  Shohei KANEKO ,  Atsushi MAEDA

IPC: F16D41/10

Abstract: In a reverse input cutoff clutch (1), two contact parts (PI1 and PI2) of a first group are respectively disposed closer to a first reference line (RL1) than two of a fifth contact part (PO1), a sixth contact part (PO2), a seventh contact part (PO3), and an eighth contact part (PO4), and two contact parts (PI3 and PI4) of a second group are respectively disposed farther from the first reference line (RL1) than the other two of the fifth contact part (PO1), the sixth contact part (PO2), the seventh contact part (PO3), and the eighth contact part (PO4).

公开(公告)号：US20240239401A1

公开(公告)日：2024-07-18

申请号：US18684209

申请日：2023-06-13

Applicant: NSK Ltd.

Inventor： Shin YAMAMOTO ,  Atsushi MAEDA ,  Shohei KANEKO ,  Cyou KYO ,  Hideyuki SAITO

IPC: B62D5/04 ,  F16D43/21

CPC classification number: B62D5/043 ,  F16D43/211

Abstract: An actuator with reverse input blocking clutch has a function of switching the reverse input blocking clutch to a state in which torque can be transmitted between an input member and an output member, in a state in which reverse torque is input to the output member from an output-side mechanism, by applying torque to the input member by an actuator in an opposite direction to a direction of the reverse torque, and then by giving an instruction to the actuator to apply torque having a magnitude smaller than a magnitude of the reverse torque to the input member in the opposite direction, transmitting the reverse torque to the input member.

公开(公告)号：US20240200617A1

公开(公告)日：2024-06-20

申请号：US18287951

申请日：2022-12-27

Applicant: NSK Ltd.

Inventor： Nagao DOHI ,  Shohei KANEKO

IPC: F16D41/063

CPC classification number: F16D41/063

Abstract: The efficiency of assembling a reverse-input blocking clutch including an elastic member is improved. A reverse-input blocking clutch 1 includes a pressed member 2 having a pressed surface 7, an input member 3 having an input-side engaging portion 22, an output member 4 having an output-side engaging portion 33, an engaging element 5 having a pressing surface 45, an input-side engaged portion 50, and an output-side engaged portion and arranged between the pressed surface 7 and the output-side engaging portion 33 with respect to a first direction which is a direction of moving toward or away from the pressed surface 7, an elastic member 6 that elastically urge the pressing surface 45 toward the pressed surface 7 in the first direction, and a displacement prevention means for preventing relative displacement in the axial direction of the engaging element 5 with respires to the output member 4.

公开(公告)号：US20220268358A1

公开(公告)日：2022-08-25

申请号：US17632698

申请日：2020-12-11

Applicant: NSK LTD.

Inventor： Hirotaka KISHIDA ,  Ricardo RODRIGUEZ LOPEZ ,  Seigou URAKAMI ,  Shohei KANEKO ,  Akihiro YAMAMOTO

IPC: F16H63/04 ,  F16H63/30 ,  F16H61/32

Abstract: A cam device having a drive cam and a driven cam; and a friction engagement device having at least one friction plate and at least one separation plate are provided. The friction engagement device is configured so as to be put into a connected state by pressing the friction plate and the separation plate against each other by the driven cam, and a disconnected state. Also provided are a rotation transmission state switching device having a first member and a second member coaxially arranged, and a mode selecting part configured to rotate or displace in the axial direction according to rotation of the drive cam. The rotation transmission state switching device has at least one mode of a free mode and a lock mode of the first member and the second member, and a one-way clutch mode.