Damper and operation unit
    1.
    发明授权

    公开(公告)号:US11493108B2

    公开(公告)日:2022-11-08

    申请号:US16637330

    申请日:2018-08-16

    Inventor: Ryohei Kaneko

    Abstract: Provided is a damper capable of damping a moving member which reciprocates along an axis, using a damping force having a hysteresis property.
    A damper includes a cylindrical housing into which a push rod is to be inserted in the direction of an axis thereof, and a damping mechanism placed in the housing and capable of damping the push rod by a damping force having a hysteresis property, wherein the damper is to be attached using a master cylinder mount space of a clutch pedal unit. In the damping mechanism of the damper, engagement between a helical cam groove formed in an inner wall of the housing and a guide protrusion formed on an outer circumference of a rotatable friction disk causes reciprocating linear motion of the push rod to be converted into rotating motion of the rotatable friction disk, and other friction disks, placed on both sides of the rotatable friction disk are pressed against respective sliding surfaces, of the rotating friction disk by an elastic force of a coil spring depending on an amount of displacement of the push rod.

    Damper
    2.
    发明授权
    Damper 有权

    公开(公告)号:US10900536B2

    公开(公告)日:2021-01-26

    申请号:US16309579

    申请日:2017-06-13

    Abstract: Provided is a damper wherein viscous fluid which fills a circular cylinder chamber is more reliably prevented from leaking.
    A rotary damper (1) includes: a first seal ring (8a) of an elastic body, arranged between a through-hole (23) of a circular cylinder chamber (21) in a case (2) and a lower end of a rotor body of a rotor (3); and a second seal ring (8b) of an elastic body, arranged between a through-hole (60) in a lid (6) and an upper end of the rotor body. The first seal ring (8a) has: an outer peripheral surface with a width in a direction of a center axis of the circular cylinder chamber (21), which is pressed against an inner peripheral surface of the through-hole (23); and an inner peripheral surface with a width in the direction of the center axis of the circular cylinder chamber (21), which is pressed against an outer peripheral surface of the lower end of the rotor body, and also a second seal ring (8b) has: an outer peripheral surface with a width in the direction of the center axis of the circular cylinder chamber (21), which is pressed against an inner peripheral surface of the through-hole (60); and an inner peripheral surface with a width in the direction of the center axis of the circular cylinder chamber (21), which pressed against an outer peripheral surface of the upper end of the rotor body.

    Rotary damper
    3.
    发明授权

    公开(公告)号:US10400846B2

    公开(公告)日:2019-09-03

    申请号:US15525152

    申请日:2015-11-06

    Abstract: [Problem] To provide a rotary damper wherein damping torque generated by rotation can be easily adjusted using a simple configuration. [Solution] A rotary damper 1 limits the movement of viscous fluid contained in a circular cylinder chamber 111, thereby generating damping torque against applied rotational force. This rotary damper 1 is configured such that: a lid 15 is screwed into a case 11; and the gap g1 between the lower surface 153 of the lid 15 and the upper surface 119 of a partition section 115 and the gap g2 between the lower surface 153 of the lid 15 and the upper surface 129 of a vane 122 can be adjusted by adjusting the amount of screwing of the lid 15 into the case 11. This means that adjusting the amount of movement of viscous fluid through the gaps g1, g2 can adjust damping torque generated by rotation.

    Synthetic resin-made thrust sliding bearing
    5.
    发明授权
    Synthetic resin-made thrust sliding bearing 有权
    合成树脂制推力滑动轴承

    公开(公告)号:US09004769B2

    公开(公告)日:2015-04-14

    申请号:US14205863

    申请日:2014-03-12

    Abstract: A synthetic resin-made thrust sliding bearing 1 includes a synthetic resin-made upper casing 12, a synthetic resin-made lower casing 22, a synthetic resin-made thrust sliding bearing piece 33 interposed between the upper casing 12 and the lower casing 22, an outer elastic seal member 47 having an inner elastically deformable lip portion 43 and an outer elastically deformable lip portion 46, and an inner elastic seal member 54 having an outer elastically deformable lip portion 50 and an inner elastically deformable lip portion 53.

    Abstract translation: 合成树脂制推力滑动轴承1包括合成树脂制的上壳体12,合成树脂制的下壳体22,插入在上壳体12和下壳体22之间的合成树脂制推力滑动轴承件33, 具有内部弹性可变形唇部43和外部弹性可变形唇部46的外部弹性密封构件47和具有外部可弹性变形的唇部50和内部可弹性变形的唇部53的内部弹性密封构件54。

    Rotary damper, and brake system
    6.
    发明授权

    公开(公告)号:US12162455B2

    公开(公告)日:2024-12-10

    申请号:US18558929

    申请日:2022-03-21

    Abstract: Provided is a rotary damper (1) suitable for use as a damper for a brake pedal with a fail-safe feature.
    In the rotary damper (1) intended for a brake pedal of an automobile and configured to generate a damping torque by rotation of a casing (11) in a forward direction N relative a rotor (12), the casing (11) is made of thermoplastic resin and is provided with a pair of arms (19a, 19b) projecting radially outward so as to hold a plate (5) therebetween. The plate (5) is configured to rotate about a pedal rotation center in conjunction with the brake pedal (4). Moreover, the arm (19a) out of the arms (19a, 19b), which is located downstream in the forward direction, includes a curved portion (191) with a constant width and a supporting portion (192) located more distal than the curved portion (191) is, and is configured to support the plate (5) with the supporting portion (192).

    Damper
    9.
    发明授权
    Damper 有权

    公开(公告)号:US11287008B2

    公开(公告)日:2022-03-29

    申请号:US16769629

    申请日:2018-11-21

    Abstract: A rotary damper (1) has a first sealing ring (8a) and a first bushing (4a) which are located between a through-hole (23) of a circular cylindrical chamber (21) inside a case (2) and a lower end part (33a) of a rotor body (31) of a rotor (3), and a second sealing ring (8b) and a second bushing (4b) which are located between a through-hole (60) in a lid (6) and an upper end part (33b) of the rotor body (31). The first sealing ring (8a) has an outer peripheral surface (85) having a width in a direction of a center axis of the circular cylindrical chamber (21) and being pressed against an inner peripheral surface (220) of the through-hole (23), and an inner peripheral surface (84) having a width in the direction of the center axis of the circular cylindrical chamber (21) and being pressed against an outer peripheral surface (34) of the lower end part (33a), and the second sealing ring (8b) has an outer peripheral surface (85) having a width in the direction of the center axis of the circular cylindrical chamber (21) and being pressed against an inner peripheral surface (64) of the through-hole 961 (60), and an inner peripheral surface (84) having a width in the direction of the center axis of the circular cylindrical chamber (21) and being pressed against the outer peripheral surface (34) of the upper end part (33b).

    Rotary damper
    10.
    发明授权

    公开(公告)号:US11143262B2

    公开(公告)日:2021-10-12

    申请号:US16491040

    申请日:2018-03-12

    Inventor: Ryohei Kaneko

    Abstract: Provided is a rotary damper on which the timing for generating a damping torque can be set freely. Groove-like bypass passages (805) that are longer in the circumferential direction than vanes (501) are formed in the upper surface (803) of a torque regulation plate (8) arranged on the bottom part (201) of a cylindrical circular chamber (200). When the rotor (5) rotates in a first rotational direction R1, if both end faces (508a, 508b) of the vanes (501) are positioned within a range of the respective bypass passages (805), each area (218) and the corresponding area (217) are communicated via the corresponding bypass passage (805), enabling movement of a viscous fluid (6) from the area (217) to the area (218). Subsequently, if the rotor (5) rotates further in the first rotational direction R1 and one or both of the end faces (508a, 508b) of each vane (501) is outside of the range of the corresponding bypass passage (805), each area (218) and the corresponding area (217) are not communicated via the corresponding bypass passage (805), and the viscous fluid (6) is unable to move from each area (217) to the corresponding area (218).

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