Disclosed is a product that may include an active shock absorber guide rod having a guide groove formed in an outer surface thereof, wherein the guide groove has a central portion and a first slanted or spiral portion at a first end of the central portion.

A coil spring device includes: a main body spring and an insulator, the insulator is provided with a support groove which extends around a coil axis and into which a lower end portion of the main body spring is fitted, the lower end portion of the main body spring adheres to an inner surface of the support groove, the inner surface of the support groove is provided with a plurality of spacer protrusions which support an outer peripheral surface of a wire rod, a plurality of adjacent spacer protrusions adjacent to an open end edge of the support groove of the plurality of spacer protrusions each includes a pair of side wall surfaces extending toward the open end edge and are provided at intervals therebetween in an extension direction of the open end edge in a plan view of a part including the open end edge in the inner surface of the support groove, and inclination angles of the side wall surfaces adjacent to each other in the extension direction with the interval therebetween with respect to an orthogonal direction orthogonal to the open end edge are different from each other in the plan view.

An isolator comprises an inner core including a bore extending therethrough, an outer shell including a cylindrical wall and an elastomer positioned radially between the inner core and the outer shell. The elastomer includes a first leg and a diametrically opposed second leg as well as a third leg in a diametrically opposed fourth leg. The first leg and the second leg interconnect the inner core and the outer shell and originate at the inner core and diverge radially outwardly along a first longitudinal direction. The third leg and the fourth leg each interconnect the inner core and the outer shell and originate at the

Disclosed are an anti-vibration ring and a motor assembly. The anti-vibration ring includes: an anti-vibration body, an installation ring and an anti-rotation limit part. The anti-vibration body is connected to one of the ring surfaces of the installation ring, and an identification structure is provided at the anti-vibration body and/or the installation ring. The anti-rotation limit part includes limit protrusions respectively provided at the edges of the anti-vibration body and/or the installation ring on opposite sides, and at least part of the identification structure is provided between two limit protrusions.

Described is a gas spring (200), comprising a guide (2), having an outer surface (212), a slider (1), defining with said guide (2) at least one chamber (11) containing pressurised gas, said slider (1) being slidably connected to said guide (2) in such a way as to have a maximum stroke, of expansion, wherein said guide (2) is partially extracted from said slider (1), and a maximum stroke, of compression, characterised in that it comprises a bushing (3), positioned between said slider (1) and said guide (2), comprising sealing means for the tightness of the chamber (11), and removably coupled and so as to move integrally with said slider (1) up to said maximum stroke, in such a way that, when said slider (1) slides with respect to said guide (2) beyond said maximum stroke, said bushing (3) decouples from said slider (1) so as to eliminate the seal of the chamber (11).

Provided is a shock absorber in which trivalent chromium is used to achieve both high hardness and low frictional force at a high level without using hexavalent chromium which is suspected of causing damage to the human body and the environment, and a method for manufacturing the shock absorber. A shock absorber (100) of the present invention includes: a cylinder (1) which is filled with hydraulic oil (3); a piston rod (2) which is movable in the cylinder (1); and an oil seal (8) which is fixed to the cylinder (1) and slides on the piston rod (2), in which a hard layer mainly containing chromium obtained from a trivalent chromium plating bath is provided on a surface of the piston rod (2), and the hard layer contains both a crystalline material and an amorphous material, and also contains an additive other than chromium.

A shock absorber includes a first passage provided in a piston and through which a working fluid moves from a chamber on an upstream side to a chamber on a downstream side in a cylinder due to movement of the piston, a first damping force generation mechanism provided in the first passage to generate a damping force, a second passage (141) provided in a piston rod (21), and a fixing member fixed to the piston rod (21) to form the second passage (141), and a second damping force generation mechanism provided in the second passage (141) to generate a damping force, in which a throttle member (161) provided in the second damping force generation mechanism, including a plurality of notch parts (171) at substantially regular intervals in a circumferential direction to form a throttle flow path (76) in the second passage due to the notch parts (171), and formed to have a flow path area of the throttle flow path (76) that is constant regardless of an attachment position thereof in the circumferential direction is further provided.

A hydraulic vibration damper comprises a damper tube having a hollow main body, a first end, and a second end opposite to the first end, a piston rod that extends into the damper tube through the second end of the damper tube, a primary piston mounted on the piston rod inside the damper tube, a secondary piston mounted on the piston rod inside the damper tube, and a two-stage jounce cut off assembly mounted directly to, and in direct contact with, an inner surface of the hollow main body of the damper tube, wherein the jounce cut off assembly is located between the first end of the damper tube and the secondary piston, and wherein the jounce cut off assembly is configured to increase a hydraulic resistance to movement of the piston rod through the damper tube when the secondary piston engages the jounce cut off assembly.

An anti-vibration mount includes: an inner member for insertion of a shaft; an outer member surrounding the inner member; and a resilient body including a covering portion covering an outer peripheral surface of the inner member, a connecting portion connecting the inner member with the outer member, and a first engagement portion formed on an outer peripheral surface of the covering portion. A restricting member includes: a support for insertion of the shaft; and a resilient body formed on the support and including a facing surface with a restriction region spaced apart and facing an end surface of the outer member, a groove portion formed in the facing surface and extending along a circumferential direction of the shaft, an inner peripheral surface facing the outer peripheral surface of the covering portion, and a second engagement portion formed on the inner peripheral surface and engaging with the first engagement portion.

A covering shelf apparatus for a vehicle includes a covering shelf disposed rearward of the second-row seat of the vehicle. The covering shelf may be accommodated and stored in an upwardly inclined position using a simple and robust structure when the covering shelf is not in use. The covering shelf apparatus further includes a damper 300 coupled to the covering shelf 100 may be utilized to reduce or eliminate rattle noise occurring while the vehicle is in motion.