公开(公告)号：US20220397163A1

公开(公告)日：2022-12-15

申请号：US17619143

申请日：2020-11-27

Applicant: NSK LTD.

Inventor： Nagao Dohi ,  Yuya Daikoku

IPC: F16D41/10 ,  F16D43/21

Abstract: [Problem] To realize a reverse input blocking clutch capable of suppressing looseness of an output member.
[Solution] The reverse input blocking clutch has a pressed member having a pressed surface 20 on the inner circumferential surface; an input member that has an input-side engaging portion 8 arranged on the inner side in the radial direction of the pressed surface 20, and is coaxially arranged with the pressed surface 20; an output member that has an output-side engaging portion 11 arranged further on the inner side in the radial direction than the input-side engaging portion 8 on the inner side in the radial direction of the pressed surface 20, and is coaxially arranged with the pressed surface 20; an engaging element 5 arranged on the inner side in the radial direction of the pressed surface 20 so as to be able to move in a first direction which is a far-near direction with respect to the pressed surface 20; and an elastic member 56 arranged at a position overlapping the output-side engaging portion 11 with respect to the first direction so as to be elastically stretched between the output-side engaging portion 11 and the engaging element 5.

公开(公告)号：US11506249B2

公开(公告)日：2022-11-22

申请号：US17596524

申请日：2020-11-25

Applicant: NSK LTD.

Inventor： Nagao Dohi ,  Yuya Daikoku

IPC: F16D43/02 ,  F16D51/18 ,  F16D65/22 ,  F16D67/02

Abstract: The reverse input cutoff clutch comprises a pressed member having a pressed surface, an input member arranged coaxially with the pressed surface and having an input-side engaging portion arranged radially inside the pressed surface, an output member arranged coaxially with the pressed surface and having an output-side engaging portion arranged more radially inside than the input-side engaging portion, and an engaging element arranged radially inside the pressed surface and having a pressing surface facing the pressed surface, an input-side engaged portion that engages with the input-side engaging portions, and an output-side engaged portion that engages with the output-side engaging portion. The output-side engaged portion is configured by a recessed portion, and the interior surface of the recessed portion has a pair of guided surfaces. The output-side engaging portion has a pair of guide surfaces facing the pair of guided surfaces.

公开(公告)号：US11428278B2

公开(公告)日：2022-08-30

申请号：US17053902

申请日：2019-04-26

Applicant: NSK LTD.

Inventor： Yuya Daikoku ,  Hirotaka Kishida ,  Hiroki Hashiguchi ,  Toshirou Toyoda

IPC: F16D45/00 ,  F16D43/18 ,  F16H25/22 ,  F16D41/08

Abstract: A reverse input blocking clutch includes an input member, an output member, a pressed member, and an engaging member. When a rotational torque is inputted to the input member, the engaging member moves in a direction away from a pressed surface of the pressed member due to engagement with the input member, and transmits the rotational torque inputted to the input member to the output member due to engagement with the output member; and when rotational torque is reversely inputted to the output member, moves in the direction closer to the pressed surface based on engagement with the output member, and by being pressed against the pressed surface does not transmit the rotational torque reversely inputted to the output member to the input member, or transmits only part thereof to the input member due to engagement with the input member.

公开(公告)号：US20220228630A1

公开(公告)日：2022-07-21

申请号：US17606641

申请日：2020-12-17

Applicant: NSK LTD.

Inventor： Nagao Dohi ,  Yuya Daikoku

IPC: F16D41/08 ,  F16D43/02

Abstract: A reverse-input blocking clutch includes: a pressed member having a pressed surface; an input member having an input-side engaging portion on an inner side in a radial direction of the pressed surface; an output member having an output-side engaging portion further on the inner side in the radial direction than the input-side engaging portion; an engaging element on the inner side in the radial direction of the pressed surface to move in a first direction away from or toward the pressed surface, having a main engaging element body having a pivot-support shaft, and a link member having a first end portion pivotally linked to the pivot-support shaft and a second end portion pivotally linked to the input-side engaging portion; and an elastic body between the main engaging element body and the link member and applying an elastic force to the link member toward the pressed surface in the first direction.