Any one of a bracket and a first attachment tool includes a press-fit portion. Another one of the bracket and the first attachment tool includes a tubular press-fitted portion. The press-fit portion is press-fitted to the press-fitted portion. The press-fitted portion includes a tubular rigid portion having an inner surface with recesses depressed and an elastic film portion made of an elastic body bonded to an inner surface of the rigid portion. The press-fit portion includes: a first protrusion portion projecting in a direction perpendicular to the press fitting direction, the first protrusion portion biting into the elastic film portion; and a second protrusion portion that partially overlaps with the rigid portion as viewed in the press fitting direction with the second protrusion portion located inside the recess.

A vibration damping device including a main rubber elastic body elastically connecting first and second mounting members. An upper portion of the main rubber elastic body constitutes a small-diameter portion to which the first mounting member is bonded, while a lower portion thereof constitutes a large-diameter portion to which the second mounting member is bonded. The first mounting member includes an inner recess opening onto an outer circumferential surface thereof, and the small-diameter portion of the main rubber elastic body is bonded to the inner recess. The main rubber elastic body has an outside diameter dimension made larger at a portion bonded to the inner recess than an outside diameter dimension of the first mounting member at a lower side than the inner recess such that the small-diameter portion of the main rubber elastic body is thick-walled by being bonded to the inner recess.

A vibration-damping device comprising: first and second attachment members connected elastically by a main rubber elastic body; an inner bracket fixed to the first attachment member with its basal end superposed on an outside end face of the first attachment member while extending laterally relative to the first attachment member; a bag-shaped stopper rubber mounted covering the basal end of the inner bracket in a non-adhesive way; a through hole formed in the stopper rubber so that the first attachment member inserted through it and the inner bracket are mutually fixed; and an elastic contact part provided at a rim of the through hole and pressed against an outer peripheral face of the first attachment member from a distal end side of the inner bracket so that the stopper rubber is positioned relative to the inner bracket in extension direction of the inner bracket.

A junction with an antivibration base body joined to its outer periphery is equipped with a chamfer portion where a corner connecting a flange portion with the junction is removed, a base portion connected to the chamfer portion in the axial direction, and an end portion connected to the base portion in the axial direction. At the junction, a first projection plane made by projecting at least the end portion in a first direction orthogonal to the axis is set to be smaller in area than a second projection plane made by projecting at least the end portion in a second direction orthogonal to the axis and the first direction.

A hydraulic mount, in particular for mounting a motor vehicle engine, includes a mount core, a supporting spring comprising an elastomer material, a working chamber delimited by the supporting spring, and a compensation chamber separated from the working chamber by an intermediate plate. The working chamber and the compensation chamber may be filled with hydraulic fluid and connected to each other by a flow transfer duct. The mount core may have a first mount core part and a second mount core part operationally connected to each other by an elastomer body for high-frequency vibration decoupling. The elastomer body has a first elastomer body portion configured to absorb at least a static mount load acting on the mount core, and a second elastomer body portion configured to absorb at least a transverse force acting on the mount core.

A liquid composite spring for vehicles includes: a core shaft; an outer sleeve arranged on an upper portion of the core shaft, the upper portion of the core shaft being located inside the outer sleeve while the lower portion of the core shaft being located outside the outer sleeve; an upper liquid chamber formed in an upper portion of the outer sleeve, a lower end of the upper liquid chamber being connected to a top of the core shaft; and a lower liquid chamber formed in a lower portion of outer sleeve, the lower liquid chamber and the upper liquid chamber being connected with each other through a metal-rubber main spring. At least one flow channel body is provided in the metal-rubber main spring, so that liquid in the upper liquid chamber and liquid in the lower liquid chamber are communicated with each other through the flow channel body.

A fluid-filled engine mounting apparatus may include a core provided with a center into which a center bolt is inserted; an insulator with an internal lower portion in which a first fluid chamber is formed and with an upper internal circumferential surface adhered to an external circumferential surface of the core; an upper housing mounted on an upper portion of the insulator; upper and lower orifice plates mounted on an internal circumferential surface of the insulator and are provided with a center hole; a membrane mounted on the center holes between the upper and lower orifice plates; a first case mounted on a lower external circumferential surface of the insulator; a first diaphragm mounted on a lower portion of the insulator that closes the first fluid chamber; and a longitudinal vibration absorbing device provided at an upper portion of the insulator.

A fluid-filled engine mounting apparatus may include a core provided with a center into which a center bolt is inserted; an insulator with an internal lower portion in which a first fluid chamber is formed and with an upper internal circumferential surface adhered to an external circumferential surface of the core; an upper housing mounted on an upper portion of the insulator; upper and lower orifice plates mounted on an internal circumferential surface of the insulator and are provided with a center hole ; a membrane mounted on the center holes between the upper and lower orifice plates; a first case mounted on a lower external circumferential surface of the insulator; a first diaphragm mounted on a lower portion of the insulator that closes the first fluid chamber; and a longitudinal vibration absorbing device provided at an upper portion of the insulator.

A fluid mount is provided having continuously variable characteristics for improving driving performance in which an automatic fluid opening and closing unit is installed between upper and lower fluid chambers. The fluid mount includes a core having a central bolt, engaged with an engine, inserted into a central portion of the core, and a rubber member formed on an outer circumferential surface of the core. The core and the rubber member are disposed in a bracket housing. The upper and lower fluid chambers and the automatic fluid opening and closing unit are installed between the upper and lower fluid chambers to continuously open and close a flow path through current change.

A stopper portion includes a first protruding portion protruding from the end face of the first attachment portion closer to the outside in the main load input direction toward the outside in the main load input direction; and a second protruding portion protruding from the end face of the first attachment portion closer to the outside in the main load input direction toward the outside in the main load input direction, being spaced apart from the first protruding portion so as to be in a non-contact state with the first protruding portion, being thinner than the first protruding portion in the main load input direction, and having a protruding end in which a distance between the protruding end and the contact surface is longer in the main load input direction than a distance between a protruding end of the first protruding portion and the contact surface.