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1. 发明公开

EP4008922A1 REVERSE INPUT CUTOFF CLUTCH 有权
公开(公告)号：EP4008922A1
公开(公告)日：2022-06-08
申请号：EP20865188.5
申请日：2020-09-23
申请人： NSK Ltd.
发明人： DOHI Nagao , DAIKOKU Yuya , MIYAZAKI Tomoyuki
IPC分类号： F16D13/14 , F16D51/12 , F16D63/00 , F16D67/02 , F16D65/22 , F16D121/14 , F16D125/20 , F16D43/02 , F16D41/08
摘要： A reverse input cutoff clutch is achieved that is capable of smoothly switching from a locked state or semi-locked state to an unlocked state when rotational torque is inputted to an input member.
The reverse input cutoff clutch includes: a pressed member having a pressed surface 20 around the inner peripheral surface; an input member coaxially arranged with the pressed surface 20 and having an input-side engaging portion 8 arranged on the inner side in the radial direction of the pressed surface 20; an output member that is coaxially arranged with the pressed surface 20 and having 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 an engaging element 5 arranged on the inner side in the radial direction of the pressed surface 20 and arranged so as to be able to move in a first direction as a direction toward or away from the pressed surface 20. The engaging element 5 is composed of a main engaging element body 30 having a pressing surface 32 and a pivot-support shaft 33, and a link member 31. The link member 31 has a first end portion that is pivotally linked to the pivot-support shaft 33, and a second end portion that is pivotally linked to the input-side engaging portion 8.

2. 发明公开

EP3954918A1 REVERSE-INPUT-BLOCKING CLUTCH 有权
公开(公告)号：EP3954918A1
公开(公告)日：2022-02-16
申请号：EP20903120.2
申请日：2020-12-17
申请人： NSK Ltd.
发明人： DOHI Nagao , DAIKOKU Yuya
IPC分类号： F16D51/12 , F16D63/00 , F16D67/02 , F16D65/22 , F16D121/14 , F16D125/20 , F16D43/02 , F16D41/08
摘要： A reverse-input blocking clutch is achieved that is capable of smoothly performing switching from a locked state to an unlocked state when a rotational torque is inputted to an input member without a reduction in controllability of a rotation drive source.
The reverse-input blocking clutch includes: a pressed member having a pressed surface 20; an input member having an input-side engaging portion 8 arranged on the inner side in the radial direction of the pressed surface 20; an output member having an output-side engaging portion arranged further on the inner side in the radial direction than the input-side engaging portion 8; an engaging element 5 arranged to move in a first direction as a direction away from or toward the pressed surface 20, and composed of a main engaging element body 30 and a link member 31, the ling member 31 having a first end portion pivotally linked to a pivot-support shaft 33 and a second end portion pivotally linked to the input-side engaging portion 8; and an elastic body 56 arranged between the main engaging element body 30 and the link member 31, the elastic body 56 applying an elastic force to the link member 31 in a direction toward the pressed surface 20 in the first direction.

3. 发明公开

EP3981997A1 REVERSE-INPUT-BLOCKING CLUTCH 有权
公开(公告)号：EP3981997A1
公开(公告)日：2022-04-13
申请号：EP20917248.5
申请日：2020-11-25
申请人： NSK Ltd.
发明人： DOHI Nagao , DAIKOKU Yuya
IPC分类号： F16D51/18 , F16D67/02 , F16D65/22 , F16D121/14 , F16D125/28 , F16D43/02
摘要： Provided is a structure of a reverse input cutoff clutch capable of easily releasing the state in which the rotation of the output member is prevented or suppressed. The reverse input cutoff clutch comprises a pressed member 4 having a pressed surface 10, an input member 2 arranged coaxially with the pressed surface 10 and having an input-side engaging portion 7 arranged radially inside the pressed surface 10, an output member 3 arranged coaxially with the pressed surface 10 and having an output-side engaging portion 9 arranged more radially inside than the input-side engaging portion 7, and an engaging element 5 arranged radially inside the pressed surface 10 and having a pressing surface 11 facing the pressed surface 10, an input-side engaged portion 14 that engages with the input-side engaging portions 7, and an output-side engaged portion 15 that engages with the output-side engaging portion 9. The output-side engaged portion 15 is configured by a recessed portion, and the interior surface of the recessed portion has a pair of guided surfaces 19. The output-side engaging portion 9 has a pair of guide surfaces 17 facing the pair of guided surfaces 19.

4. 发明公开

EP4006370A1 REVERSE INPUT BLOCKING CLUTCH 有权
公开(公告)号：EP4006370A1
公开(公告)日：2022-06-01
申请号：EP20866367.4
申请日：2020-09-23
申请人： NSK Ltd.
发明人： DOHI Nagao , DAIKOKU Yuya , MIYAZAKI Tomoyuki
IPC分类号： F16D51/12 , F16D63/00 , F16D67/02 , F16D65/22 , F16D121/14 , F16D125/20 , F16D43/02 , F16D41/08
摘要： Provided is a reverse input blocking clutch capable of smoothly switching from a locked or semi-locked state to an unlocked state when rotational torque is inputted to an input member. The reverse input blocking clutch 1 includes a pressed member having a pressed surface 20, an input member having an input-side engaging portion 8, an output member having an output-side engaging portion 11, and an engaging element 5. The engaging element 5 includes an engaging element main body 30 and a link member 31. The engaging element main body 30 includes a pair of main body plates 40a, 40b and a pivot support shaft 33. The pair of main body plates 40a, 40b has a pair of pressing surfaces 32a, 32b and an output-side engaged portion 34. One pressing surface 32a is provided on one main body plate 40a. The other pressing surface 32b is provided on the other main body plate 40b. The link member 31 has a first end portion that is pivotally connected to the pivot support shaft 33 and a second end portion that is pivotally connected to the input-side engaging portion 8.

5. 发明公开

EP4006371A1 REVERSE INPUT BLOCKING CLUTCH 有权
公开(公告)号：EP4006371A1
公开(公告)日：2022-06-01
申请号：EP20892359.9
申请日：2020-11-27
申请人： NSK Ltd.
发明人： DOHI Nagao , DAIKOKU Yuya
IPC分类号： F16D51/18 , F16D67/02 , F16D65/22 , F16D121/14 , F16D125/28 , F16D43/02
摘要： [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.

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