Abstract: A tri-adaptive apparatus is disclosed and configured for functioning as a dynamic force isolation and dampening metamaterial that reduces the transmission of dynamic forces between a dynamic force source and an object. In at least one embodiment, the apparatus provides at least one cell unit that provides a pair of opposing first and second cell plates, between which is positioned at least one spring, restrainer and dashpot. An outer surface of the first cell plate is positioned in contact with the dynamic force source. An outer surface of the second cell plate is positioned in contact with the object. The at least one spring, restrainer and dashpot are configured for transferring dynamic force energy mutually between one another while deforming mechanically in response to the dynamic forces transmitted by the dynamic force source.

Abstract: A microphone is provided that prevents or reduces generation of noises caused by vibration from a grip body. A microphone includes a grip body having a shape of a cylinder, a head case attached to the grip body, a microphone unit disposed inside the head case, an internal cylinder to which the microphone unit is attached, and an elastic member configured to undergo shear deformation in the longitudinal direction of the grip body. The internal cylinder is disposed inside the grip body with the elastic member.

Abstract: A method of making a compressible elastomeric spring including at least one compressible elastomeric pad enclosed by a pair of metal plates includes the steps of forming plates with a center aperture and a plurality of prongs positioned about a peripheral edge thereof, forming each end of the pad with an axial projection and abutting groove, aligning the plurality of prongs with each respective projection and respective groove and applying axial force to one end of the spring to frictionally interlock the plurality of prongs with such projection and groove. The method also provides for making a multi-tiered stack of pads separated by plates in the above described manner and pre-shortening the spring prior to installation into the conventional yoke. The above described method additionally improves axial straightness and lateral stability of the multi-tiered spring assembly.

Abstract: An annular vibration isolator for a rotating shaft supported by a bearing is provided. The annular vibration isolator comprises an outer ring extending substantially entirely around the bearing, an arc portion having a contact portion extending toward the bearing, first and second axial portions enclosing a cavity, a first flange portion forming a first channel, a second flange portion forming a second channel, and the first and second flange portions forming a chamber within the cavity and forming a radial passageway connecting the chamber to the first and second channels, and a bellows disposed in the chamber and coupled to the radial passageway, the bellows adapted to receive a fluid from the first and second channels.

Abstract: A bound stopper provided with a drainage path for draining water that has passed through drainage holes formed in a bottom portion of a bracket. The drainage path is constituted by a recessed portion formed on at least one of a plurality of corresponding portions of a fixing metal fitting and the recessed portion opens outward in a direction perpendicular to an axial direction of the fitting. The corresponding portions are positioned so as to correspond to each of the plurality of the drainage holes, upon the fitting being in contact with the bracket. A locating projection is provided on an outer surface of the corresponding portion different from the corresponding portion having the recessed portion. Insertion of a locating projection into the drainage hole corresponding to the different corresponding portion allows the fitting to be circumferentially positioned such that the corresponding portions correspond to the drainage holes.

Abstract: A fluid-filled vibration-damping device includes an elastic body elastically connects a first mounting member and a cylindrical second mounting member bonded to opposite side thereof; a diaphragm supported by the second mounting member so that the diaphragm cooperates with the elastic body to define therebetween a fluid chamber; and a partition member supported by the second mounting member so that the partition member divides the fluid chamber into a primary fluid chamber and an auxiliary fluid chamber which are held in communication through an orifice passage defined by an orifice-defining member having a movable rubber plate disposed in its central hole. The surface of the orifice-defining member is coated at a primary-fluid-chamber-defining area by a coating rubber layer, thereby minimizing noises caused by bubbles in the fluid chamber.

Abstract: A hydraulic vibration isolator with sub-orifices having each rubber valve is provided, such that is aimed at ensuring a sufficient orifice length for a main orifice (22). An intermediate cylinder (32) disposed between an inner and an outer cylinders (12, 14) is comprised of fitting peripheral walls (34, 36) at both ends and joining walls (38, 40) between them; a first and a second liquid chambers (18, 20) are delimited by a vibration-isolating base body (16) interconnecting the joining walls and the inner cylinder; the fitting peripheral walls and the inner cylinder are interconnected by end walls (42) of rubber-like elastomer, and orifice-forming parts (44, 46) are provided on the outer surface sides of the joining walls. At the orifice-forming parts, a channel (50) having a first rubber valve (24) forming a first sub-orifice (26), a channel (56) having a second rubber valve (28) forming a second sub-orifice (30), and fitting recessed portions (48, 54) are provided.

Abstract: A fluid filled vibration damping device including: an elastic body elastically connecting a first and a second mounting member and partially defining a pressure receiving chamber filled with a non-compressible fluid and undergoing fluid pressure variation upon application of vibrational load between the first and second mounting members; a flexible diaphragm partially defining an equilibrium chamber filled with the non-compressible fluid and whose volume is variable; and an orifice passage permitting a fluid communication between the pressure-receiving chamber and the equilibrium chamber. The flexible diaphragm is constituted by a rubber elastic layer having an annular thick-walled portion and a central thick-walled portion situated at a substantially central portion of an inner area surrounded by the annular thick-walled portion, while being independent of the annular thick-walled portion.

Abstract: A hydraulic mount having first and second fluid tracks, and a decoupler functioning as an air spring with two remotely selectable settings. The settings allow tailoring of the air spring characteristics to provide mount damping for differing engine operating states, such as engine idle. A solenoid is used to select a smaller or larger air volume to control the characteristics of the air spring and, in turn, the dynamic response of the hydraulic mount. An integral controller provides switched operation of the solenoid and compensates for variations in temperature and input voltage, as well as minimizing electrical noise generated by the solenoid when it is energized.

Abstract: A hydraulic vibration-damping support comprising two strength members interconnected by an elastomer body which defines a working chamber communicating with a compensation chamber via a constricted passage. The two hydraulic chambers are separated from each other by a rigid partition formed by two gratings disposed one on the other, and a decoupling flap is mounted with a small amount of clearance between the gratings. The decoupling flap is provided with two catches that are clipped onto one of the gratings.

Abstract: An improved hydraulic engine mounting device is provided which includes a main body defined by first and second shells. Each of these shells contains a chamber separated from each other by an orifice assembly. The first shell includes a flange for supporting the orifice assembly the second shell interengaging with the first shell at the flange area. The diaphragm is interposed between the second shell and the orifice assembly within the second chamber. The orifice assembly includes a ledge portion extending about an outer perimeter of the orifice assembly, the perimeter of the diaphragm captured between the ledge portion and the perimeter of the second shell. A plastically deforming perimeter of the first shell presses the diaphragm between the orifice and the second shell to provide a tight hydraulic seal.

Abstract: An elastomeric spring (10) comprises a body (11) of elastomeric material which extends between a pair of opposed end regions (12, 13) whereby compression forces acting in a first direction (16) on said end regions are resisted by compression of the elastomeric body, the body (11) of elastomeric material being of a substantially symmetrical shape as considered in cross section about a major axis (16) of the spring extending in said first direction, and substantially hollow in the vicinity of at least one (13) of said end regions, said body (11) of elastomeric material being of progressively increasing external cross-sectional dimension over a first part (21) of the length of the body extending from a first (32) of said end regions and of progressively decreasing external cross-sectional dimension over a second part (22) of the length of the body extending to a second (13) of said end regions, a substantially inextensible reinforcement member (17) embedded in and bonded to said body (11) of elastomeric material