A dust cover to cover an opening of a housing through which at least one of a shaft and a pipe extends includes a hole-edge portion and a main body. The at least one of the shaft and the pipe is extendable through the through hole. The hole-edge portion defines an edge of a through hole through which the at least one of the shaft and the pipe is extendable. The main body is configured to cover the opening. The main body has a hardness different from a hardness of the hole-edge portion.

A folding bellows for protecting an interior of the folding bellows effectively from environmental influences and managing pressure changes in the interior. The folding bellows having a gas-tight casing including a plurality of folds in an axial direction. Opposed front faces adjoining the casing. The front faces closed in a gas-tight manner. The casing having a wide region and a narrow region each formed of a plurality of folds with the outer cross-sectional surface of the folds in the wide region being larger than those in the narrow region. The folding bellows in one embodiment used with a motor vehicle subassembly.

A folding bellows for protecting an interior of the folding bellows effectively from environmental influences and managing pressure changes in the interior. The folding bellows having a gas-tight casing including a plurality of folds in an axial direction. Opposed front faces adjoining the casing. The front faces closed in a gas-tight manner. The casing having a wide region and a narrow region each formed of a plurality of folds with the outer cross-sectional surface of the folds in the wide region being larger than those in the narrow region. The folding bellows in one embodiment used with a motor vehicle subassembly.

A cylinder device includes a cylinder that has one end from which a piston rod extends, a pipe-shaped cover member that has an extendable bellows portion and a small-diameter portion whose inner diameter is smaller than an inner diameter of the bellows portion, the cover member being configured to protect the piston rod, and a capping member fitted into the cylinder, the capping member having a convex portion to which the small-diameter portion of the cover member is locked, at an outer periphery, wherein at the small-diameter portion of the cover member, a bulge portion that bulges outside in a radial direction is formed.

A cylinder device includes a cylinder that has one end from which a piston rod extends, a pipe-shaped cover member that has an extendable bellows portion and a small-diameter portion whose inner diameter is smaller than an inner diameter of the bellows portion, the cover member being configured to protect the piston rod, and a capping member fitted into the cylinder, the capping member having a convex portion to which the small-diameter portion of the cover member is locked, at an outer periphery, wherein at the small-diameter portion of the cover member, a bulge portion that bulges outside in a radial direction is formed.

The present disclosure relates to a cover cap and an insulator for a shock absorber including the same, and the cover cap according to the embodiment of the present disclosure includes a cap main body having a circular plate shape, and a cap hollow portion penetrating a center of the cap main body. Further, a part or the entirety of the cap hollow portion is formed such that a diameter thereof increases toward one surface of the cap main body and the diameter maximally increases at one surface of the cap main body.

The present disclosure relates to a cover cap and an insulator for a shock absorber including the same, and the cover cap according to the embodiment of the present disclosure includes a cap main body having a circular plate shape, and a cap hollow portion penetrating a center of the cap main body. Further, a part or the entirety of the cap hollow portion is formed such that a diameter thereof increases toward one surface of the cap main body and the diameter maximally increases at one surface of the cap main body.

A dust cover is configured to cover an outer side of a damper extending in a predetermined direction. The dust cover includes bellows portions and a flange portion. The bellows portions are inclined alternately toward a radially outer side and a radially inner side in an axial direction. The flange portion extends radially outward from a cylindrical portion of the dust cover. The flange portion protrudes radially outward from the cylindrical portion of the dust cover by a dimension larger than a height dimension in a radial direction between a radially inner end and a radially outer end of each of the bellows portions. A thickness of the flange portion is larger than a thickness of the radially outer end of each of the bellows portions.

A dust cover is configured to cover an outer side of a damper extending in a predetermined direction. The dust cover includes bellows portions and a flange portion. The bellows portions are inclined alternately toward a radially outer side and a radially inner side in an axial direction. The flange portion extends radially outward from a cylindrical portion of the dust cover. The flange portion protrudes radially outward from the cylindrical portion of the dust cover by a dimension larger than a height dimension in a radial direction between a radially inner end and a radially outer end of each of the bellows portions. A thickness of the flange portion is larger than a thickness of the radially outer end of each of the bellows portions.

A bumper cap for a damper, the damper including an outer tube with a tube end. A rod extending through the tube end. The damper including a damping fluid, such as a hydraulic oil, that is movable within the damper in response to movement of the rod to provide a damping effect. The bumper cap has a cup shaped body having a side wall and a base, the side wall having an inner surface and an outer surface, the inner surface having a dimension that is sized to be press fit over the outer tube. The base of the bumper cap has a through hole in the base, the through hole configured to have the rod pass therethrough. The base has at least one fluid passage extending away from the through hole that is in fluid communication with a fluid reservoir in the side wall.