[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.

A damper (10) includes a housing (11) and a rotor (16) combined with the housing (11) so as to be capable of rotating relative to the housing (11). The damper (10) includes an attenuating medium (90) filled in a rotation area inside the housing (11) wherein the rotor (16) rotates, and added with viscoelasticity by a viscoelasticity treatment; and an enclosure portion (80) provided outside the rotation area of the rotor (16), and communicating with the rotation area.

A damper (10) includes a housing (11) and a rotor (16) combined with the housing (11) so as to be capable of rotating relative to the housing (11). The damper (10) includes an attenuating medium (90) filled in a rotation area inside the housing (11) wherein the rotor (16) rotates, and added with viscoelasticity by a viscoelasticity treatment; and an enclosure portion (80) provided outside the rotation area of the rotor (16), and communicating with the rotation area.

The invention relates to a method for operating a ground-coupling arrangement for a vehicle comprising a ground receiving element for receiving a grounding object, wherein the ground receiving element is at least partially filled with a fluid which contacts the grounding object; at least one coupling means which is designed for coupling the grounding object to the ground receiving element by means of the fluid and thus to a vehicle structure that is rigidly connected to the vehicle, and/or for at least partially decoupling of the ground receiving element from the vehicle structure; and a hydraulic line which connects the coupling means to the fluid, wherein the grounding object compresses the fluid in the case of a crash and the coupling means directs the fluid out of the ground receiving element or reroutes the fluid in the ground receiving element.

A line retraction device includes a rotatable drum having a line associated therewith, with the line including a first end directly or indirectly attached to the drum and a second end opposite the first end, and at least one retraction member biasing the drum in a first rotational direction of the drum opposite a second rotational direction of the drum, where the drum is configured to: (i) retract the line when the drum moves in the first rotational direction; and (ii) payout the line when the drum moves in the second rotational direction. The device further including a damper assembly configured to provide rotational resistance to the drum in: (i) the first rotational direction of the drum as the line is being retracted; and (ii) the second rotational direction as the line is being paid out.

A damper providing varying damping force is provided. The damper may include a housing and a rotary member rotatably received the housing. The rotary member may rotate within the housing between defined end points of travel to define an angular range of travel of the rotary member. An outermost surface of the rotary member may be spaced inwardly from an inner surface of the housing defined between the end points of travel to define a gap between the outermost surface of the rotary member and the inner surface of the housing throughout the angular range of travel. The gap may vary in dimension depending on a rotational position of the rotary member to provide varying damping rates within the angular range of travel of the rotary member.

A shock absorber includes a holding member that holds a rod. Inside the holding member, there is formed a flow path through which oil passes. The flow path include a first flow path extending along an axis of the rod from one end of the holding member in an axial direction, a second flow path extending from one end portion of the first flow path along a radial direction of the rod, and a third flow path extending along the axis of the rod from one end portion of the second flow path to the other end of the holding member in the axial direction.

A rotary damper includes a housing and a rotor. The housing includes, inside a cylindrical surface, two plate-shaped fixed vanes. A fixed vane clearance portion is formed as such an inclined surface that both side walls of a tip end portion of the fixed vane extend inwardly in a thickness direction toward the tip end portion. The rotor includes, on an outer surface of a shaft body, two movable vanes. A movable vane clearance portion is formed as such an inclined surface that both side walls of the base side of the movable vane extend inwardly in the thickness direction toward the tip end portion. The rotor turns until part of a base portion of the movable vane enters a recessed cutout region of the fixed vane clearance portion.

An actuator provided with a motor for moving an output arrangement, the actuator including both an output lever and a fusible connection that acts up to a mechanical torque threshold to constrain the output arrangement and the output lever to move together in rotation about an axis of rotation. The actuator also includes a fluid damper device housed between the output lever and the output arrangement to act, following rupture of the fusible connection, to damp movement of the output lever relative to the output arrangement in rotation about the axis of rotation.

Provided is a rotary damper configured so that specifications can be easily changed and favorable economic performance can be provided by continuous use of a typical rotary damper. The rotary damper (100) includes a housing (101) and a turning characteristic defining unit (140). The housing (101) has an inner chamber (103) housing a movable vane (132) of a rotor (130) and fluid (170). The housing body (102) has first externally-communicable paths (110) to (113) and second externally-communicable paths (114) to (116) communicating with an outer surface of the housing body (102). The turning characteristic defining unit (140) has, in a unit body (141), turning characteristic definers (160) to (163) defining turning characteristics of the rotor (130) and first definer communication paths (150) to (153) and second definer communication paths (154) to (156) causing the turning characteristic definers (160) to (163) and an outer surface of the unit body (141) to communicate with each other.