A wear sleeve for a shock body is disclosed. The wear sleeve inner diameter (ID) that is larger than an outer diameter (OD) of a shock body. A wear sleeve OD that is smaller than a spring coupler ID, such that the wear sleeve will fit about the outside of said shock body and between the shock body and the spring coupler.

A spring seat installed in a damper device including a first rotor, a second rotor and a plurality of elastic members is disclosed. The spring seat includes an end surface support portion and an outer periphery support portion. The end surface support portion includes a recess on a radially middle part thereof. The recess is recessed toward at least one of the elastic members. The end surface support portion supports one end surface of the at least one of the elastic members. The end surface support portion is supported by a pressing surface of a first accommodation portion of the first rotor and a pressing surface of a second accommodation portion of the second rotor. The outer periphery support portion supports part of a radially outer part of the at least one of the elastic members.

A head unit device for controlling motion of an object includes shear thickening fluid (STF), an alternative STF (ASTF), and a chamber configured to contain a portion of the STF and the ASTF. The chamber further includes a piston compartment and an alternative reservoir. The head unit device further includes a reservoir injector configured within the chamber, and a piston housed at least partially radially within the piston compartment. The chamber further includes a set of fluid flow sensors and a set of fluid manipulation emitters to control the reservoir injector to adjust flow of the ASTF from the alternative reservoir to the piston compartment to cause selection of one of a variety of shear rates for a mixture of the STF and the STF within the piston compartment.

A roll mount device for a vehicle includes: a front mount configured to be connected to a power train; a rear mount configured to be connected to a vehicle body; and a rod disposed between the front mount and the rear mount. The front mount comprises: a core configured to be connected to the power train to receive vibration transmitted from the power train; an outer pipe disposed outside the core and spaced from the core by a predetermined distance with respect to a radial direction of the core; an elastic body disposed between the core and the outer pipe to absorb vibration transmitted thereto from the core; and a stopper disposed on an outer surface of the core to be spaced from an inner surface of the outer pipe by a predetermined distance.

A dampener for an exit device may be disposed between a portion of an exit device actuator and an exit device chassis so that the dampener dampens vibrations to reduce noise of the exit device and/or inhibit unintentional movement of the actuator to an actuated position. The dampener may be composed at least partially of a viscoelastic material.

A damping valve device for a vibration damper includes a first damping valve that moves into a through-flow operating position in a first operating range with increasing flow velocity of a damping medium. A second operating range with a progressive damping force characteristic is influenced by a throttle point in connection with a valve body that can be transferred into a throttle position. The valve body moves in closing direction with increasing flow velocity of the damping medium and is arranged in series with the damping valve. The valve body is constructed as a ring element with variable diameter that executes a radial closing movement in direction of a flow guide surface in which a defined minimum passage cross section is maintained.

A seatbelt assembly includes a seatbelt buckle and an air damper. The seatbelt buckle is coupled to an anchor point. The air damper is disposed between and coupled to the seat belt buckle and the anchor point. The air damper is configured to increase a resistance force applied to counteract movement of the seatbelt buckle away from the air damper as a speed of the movement of the seatbelt buckle increases.

A suspension limiter includes a diaphragm element configured to be placed in operable communication with a suspension such that a rate of increase in load per unit travel of compression of the suspension is reduced near a full travel of the suspension than would exist for the suspension if the diaphragm element were not present, the diaphragm element arranged to deform only elastically through the full travel of the suspension. Suspension arrangements and methods of loading suspension arrangements are also described.

A lower-side spring-receiving member of a suspension device, receiving a suspension spring structured to have a rising section at a lower side of the suspension spring, having a partially annular shape and including: a base end portion arranged at one end of the lower-side spring-receiving member wherein an end of the suspension spring is inserted into the base end portion; a slope portion arranged at the other end of the lower-side spring-receiving member and having a thickness in a cross-sectional view varying so as to follow a shape of the rising section of the suspension spring; and a holding portion that is arranged between the base end portion and the slope portion and holds the suspension spring, wherein the slope portion has a recess portion (Nk) formed on its bottom-surface; the recess portion includes a ridge portion is formed in a substantially mountain shape in a cross-sectional view taken along a radial direction of the partially annular shape and may be or may not be in contact with a mounting surface when no spring load of the suspension spring is applied.

A leaf spring vehicle suspension system includes a chassis rail. Also included is an axle. Further included is a first stage leaf spring operatively coupled at a first end and a second end to the chassis rail, the first stage leaf spring formed of a single steel spring plate and having a first length. Yet further included is a second stage leaf spring operatively coupled to the first stage leaf spring in a stacked arrangement proximate the axle, the second stage leaf spring formed of a composite material and having a second length that is less than the first length of the first stage leaf spring.