A cushioning sheet having an elastic body and including a flat plate, and a plurality of protruding portions that protrudes from the flat plate, an interior of each protruding portion being a cavity that opens in an opposite direction to a protrusion direction, wherein at least one of an inner surface and an outer surface of the protruding portion is provided with a groove that serves as a deformation starting point when the protruding portion is compressed and deformed.

A coil spring 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, a 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, the support groove extends in an angle range of 180 or more and 360 or less around the coil axis, and a ratio of a volume of the spacer protrusions occupying a gap between the inner surface of the support groove and the outer peripheral surface of the wire rod at a center portion in the gap in a circumferential direction around the coil axis is larger than that at the other portions in the gap in the circumferential direction.

A tubular vibration isolation device for a motor mount includes an inner shaft member and an outer tubular member that are connected by a main body rubber elastomer. The main body rubber elastomer includes rubber legs that extend from the inner shaft member toward the outer tubular member to connect the inner shaft member and the outer tubular member to each other. The rubber leg is provided with vibration damping protrusions that protrude on a surface and are located at an intermediate portion separated from both the inner shaft member and the outer tubular member in a connecting direction. The vibration damping protrusions are disposed in parallel and separated from each other in the connecting direction of the rubber leg.

An air spring having at least one composite part is provided. The air spring will have a top plate, a flexible sleeve, and a clamp ring coupled together by an injection molded collar. The injection molded collar will be formed to hold the top plate, flexible sleeve, and clamp ring in compression to form an air tight seal. In certain aspects, the top plate and/or the clamp ring may be formed from composites or metals.

Provided are a method for manufacturing a sliding member, a method for manufacturing a shock absorber, a sliding member, a shock absorber, and a method for adjusting ride comfort capable of improving retention of lubricating oil between sliding members while increasing operability and capable of sustaining smooth sliding of the sliding members. A method for manufacturing a sliding member that performs a sliding operation in a presence of a lubricating oil, the method having a first polishing step of polishing a surface of the sliding member in a circumferential direction of the sliding member by using a polishing tape having a first whetstone to form a plurality of grooves disposed around the sliding member in the circumferential direction; and a second polishing step of polishing the sliding member after the first polishing step to form a surface cross section in a longitudinal direction of the sliding member in a plateau shape.

A diaphragm holder for an oleo-pneumatic-type shock absorber includes a tubular body made of thermoplastic material, having one end arranged to hold a diaphragm and an opposite end defining an arched bottom for withstanding pressure forces. An insert is housed in the bottom of the tubular body and is arranged to mechanically reinforce the bottom and to distribute the pressure forces evenly.

A damping assembly includes a mount comprising a circular opening and a support configured to be inserted into said circular opening of said mount. The support comprises a baseplate having a cylindrical outer lateral surface. The support comprises a damping cylinder comprising an inner lateral surface surrounding the outer lateral surface of said base and an outer lateral surface configured to be held on said circular opening. Said damping cylinder comprises at least one radial projection protruding from the inner lateral surface of said damping cylinder or from the outer lateral surface of said damping cylinder.

In a tubular vibration isolation device 10, an inner shaft member 12 and an outer tubular member 14 are connected by a main rubber elastic body 16. The main rubber elastic body 16 includes a pair of rubber legs 28 connecting, on both sides of the inner shaft member in a shaft-perpendicular direction, the inner shaft member and the outer tubular member. A protrusion rubber 46 is provided, in a cut hole 40 formed by penetrating one of the pair of rubber legs 28, 28 in an axial direction, to protrude from the side of the outer tubular member to the side of the inner shaft member toward the side of the inner shaft member. The protrusion rubber is arranged as a contact rubber 56 contacting the side of the inner shaft member in a state in a vehicle mounted state.

A tubular vibration-damping device including a tubular resin outer member including a detent protrusion protruding from its outer circumferential surface, an inner shaft member inserted through the resin outer member, and a main rubber elastic body interconnecting the two members. A tubular collar member into which the resin outer member is fitted includes a window into which the detent protrusion is inserted. A gap is provided between the window and the detent protrusion on a distal end side in a direction of fit of the resin outer member and on both sides in a circumferential direction. An end surface of the detent protrusion on a proximal end side in the direction of fit is a locking surface inclining radially outward toward the distal end side in the direction of fit, and the collar member is axially locked to the locking surface.

A spring (5;105;205;305;404;505) for a clamp suitable for attachment to a tubular member, the spring comprising a resilient body (6;106;206;306;406;506) having first and second ends (8;108;208;308;408;508) and an internal surface (7;107;207;307;407;507) adapted to seat within a clamp member and an external surface (9;109;209;309;409;509) adapted to contact the outer surface of a tubular member, the internal and external surfaces extending between the first and second ends and wherein the stiffness of the resilient body of the spring varies over the length of the body between the first and second ends.