A rotary suspension stop for a suspension strut comprises a bearing, a lower support forming a bearing surface for an upper turn of a helical spring and an annular shrink-fitting surface turned radially in a radial reference direction, a cover comprising an annular skirt extending axially facing and at a distance from the shrink-fitting surface and a seal having a body, at least one annular sealing lip in sliding contact against the annular skirt of the cover and at least a first set of one or more elastic first shrink-fit lips projecting toward the shrink-fitting surface and shrunk to the shrink-fitting surface.

Disclosed herein is a manufacturing method of a spring pad interposed among a spring used in an automobile suspension system and an upper sheet and a lower sheet for supporting the spring, wherein the spring pad includes an insulator getting in contact with the spring to absorb shock and forming a body of the spring pad, and is manufactured through foam injection molding of the insulator to be lightweight.

A method for creating a roller spring perch has steps for making a steel frame bracket, procuring snap rings, procuring four bearings, machining a steel cylindrical bearing housing, machining a bearing shaft, assembling the bearing shaft to the bearing housing with the four bearings pressed onto each of two bearing lands, assembling the snap rings in snap ring grooves of the bearing shaft, placing the bearing housing with the bearing shaft and bearings centered through holes in sidewalls of the steel bracket; and spot welding the bearing housing to the sidewalls of the steel bracket.

A damper system for changing a ground clearance of a vehicle, including a main damper having a main damper chamber and a main damper piston movably arranged in a main damper tube and a spring assembly. The spring assembly includes a spring, a lower spring seat, and an upper spring seat. The spring is arranged between the lower spring seat and the upper spring seat, wherein one of the lower spring seat and the upper spring seat includes a cylinder and a piston, and the other one of the lower spring seat and the upper spring seat is coupled to the main damper and movable with the spring. The piston of the spring assembly is steplessly adjustable between a first position and a second position, wherein the first position corresponds to a predefined minimum ground clearance and the second position corresponds to a predefined maximum ground clearance.

A suspension device for a vehicle, including a spring-absorber unit constituted by a shock absorber and a suspension spring that are formed as one unit, the shock absorber including a cylindrical housing, a piston disposed in the housing, and a piston rod that is connected at a basal portion thereof to the piston and that extends from the housing, the suspension spring being a coil spring through which the shock absorber passes, wherein one end portion of the suspension spring is capable of being supported by the housing of the shock absorber, and the other end portion of the suspension spring is capable of being supported by a distal portion the piston rod of the shock absorber while the suspension spring is receiving a tensile load.

A spring guide includes: a main body portion of which a coil spring is placed on a vehicle side, the main body portion being formed of a resin material; and a covering portion that covers an anti-spring side of the main body portion opposite to the coil spring. The covering portion is formed of a material having a physical property different from that of the resin material forming the main body portion.

In a vehicle suspension, a preload is adjusted by selective engagement of cam surfaces of different heights with a cam receiving part by rotation of an adjuster part, the adjuster part includes a vertical wall part erected in an axial direction of a spring from a spring receiving part and an engaging part with which a tool to rotate the adjuster part is to be engaged, and the engaging part includes a first engaging part formed by a gap between the plurality of vertical wall parts disposed separately from each other in a circumferential direction of the adjuster part and a second engaging part formed by a hole penetrating the vertical wall part.

A damping assembly for a vehicle suspension system may include a spring including a first end operably coupled to a body of a vehicle and a second end operably coupled to a wheel assembly of the vehicle, a spring isolator operably coupling the body of the vehicle to the first end of the spring, a hydraulic jounce bumper to dampen jounce forces on the vehicle, and a reinforcement member operably coupled to the hydraulic jounce bumper at a proximal end of the reinforcement member and to the spring isolator at a distal end of the reinforcement member. The reinforcement member may be integrated with the spring isolator at the distal end of the reinforcement member.

A strut assembly including a spring to help absorb impacts and a shock absorber to help control motion of the spring is disclosed. The shock absorber includes a base assembly and is mounted between a top mount assembly and a knuckle. The top mount assembly mounts to the body of the vehicle and helps support the spring. An upper spring seat is adjacent the top mount assembly and receives one end of the spring. A lower spring seat formed of a composite material is supported by the base assembly and is adapted to support another end of the spring. The lower spring seat includes at least one reinforcing element having a plurality of reinforcing cords disposed between an upper surface and a lower surface for improving impact resistance thereof.

A method of manufacturing a hollow coil spring which is made of a hollow wire in which a terminal sealed portion is formed on an end portion of the wire. The terminal sealed portion has a rotationally symmetric shape in which an axis passing through the center of the wire is the symmetric axis. The hollow coil spring includes an end wall portion, and an end face arc-shaped curved surface. The end wall portion includes an end face perpendicular to the axis. A distal-end-center closure portion is formed on the axis at the center of the end wall portion. A spring seat includes a base member and a sheet member. An end turn portion of the hollow coil spring is in contact with the sheet member. The end face of the end turn portion is opposed to a stopper wall of the spring seat.