Abstract: A vibration-damping device for damping vibrations of a vibrative member of a vehicle, including: a mass member disposed in the vibrative member such that the mass member is non-adhesive to and is displaceable independent of and relative to the vibrative member; the mass member and the vibrative member being brought into impact against with each other at their abutting portions. At least one of the abutting portions of the mass member and the vibrative member is formed of an elastic member adapted to undergo shear deformation in a direction in which the mass member and vibrative member are brought into impact against each other.

Abstract: Disclosed is a fluid-filled cylindrical vibration damping device including an elastic body interposed between an inner and outer sleeves for elastically connecting these sleeves with each other. A plurality of fluid chambers filled with a non-compressible fluid are partially defined by the elastic body so that a pressure of the fluid in the plurality of fluid chambers vary upon application of a vibrational load to the vibration damping device. A first orifice passage permitting a fluid communication between the fluid chambers is at least partially defined by an elastic member adapted to be subjected to shear deformation due to a fluid pressure acting on the first orifice passage so that a cross sectional area of the first orifice passage increases according to an increase of the pressure of the fluid acting on the first orifice passage owing to the shear deformation of the elastic member.

Abstract: A vibration-damping device comprising: at least one rigid housing member fixedly disposed in a vibrative member; and a plurality of independent mass members disposed non-adhesively and independently in the at least one housing member such that each of the plurality of independent mass members is opposed to the at least one housing member with a given spacing therebetween in a vibration input direction, and is displaceable relative to the at least one housing member. The each independent mass member is independently displaced relative to the at least one housing member so that the independent mass member and the housing member are brought into elastic impact against each other at their respective abutting surfaces which are opposed to each other in the vibration input direction.

Abstract: Disclosed is a dynamic damping device for a steering system of an automotive vehicle, which equipped with a telescopic steering column, including a plurality of mutually independent dynamic dampers, each including a mass member and a spring member for elastically supporting the mass member to the steering column or wheel. At least two of natural frequencies of the plurality of dynamic dampers are tuned to a higher and a lower frequency range in relation to a central value of a range of variation in a natural frequency of the steering wheel due to an expansion or contraction of the telescopic steering column, within the range of vibration in the natural frequency of the steering wheel. Further, a difference between adjacent ones of the natural frequencies of the plurality of dynamic dampers is made held within 10-40% of the central value of the range of vibration in the natural frequency of the steering wheel.

Abstract: A vibration restraining apparatus for vehicle of the present invention is comprised of a housing formed by a rigid material and having an inner space, and fixed to a vibration transmitting member; a filled member sealed in the inner space of said housing in a non-adhered state with leaving a gap with respect to a vibrating direction of said housing, and formed by an elastic body at least at a surface thereof. When the housing resonates by vibration transmitted from the vibration transmitting member, the filled member contacts inner surface parts located at both sides of the housing in a vibrating direction thereof to exercise a damping character due to an energy loss caused by a sliding friction and a collision. Thus, a large damping character occurs inside of the housing to reduce vibration of the housing effectively. As a result, vibration of the vibration transmitting member is effectively reduced.

Abstract: A vibration-damping device for damping vibrations of a vibrative member of a vehicle, including: a mass member disposed in the vibrative member such that the mass member is non-adhesive to and is displaceable independent of and relative to the vibrative member; the mass member and the vibrative member being brought into impact against with each other at their abutting portions. At least one of the abutting portions of the mass member and the vibrative member is formed of an elastic member adapted to undergo shear deformation in a direction in which the mass member and vibrative member are brought into impact against each other.

Abstract: A vibration-damping device comprising: at least one rigid housing member fixedly disposed in a vibrative member; and a plurality of independent mass members disposed non-adhesively and independently in the at least one housing member such that each of the plurality of independent mass members is opposed to the at least one housing member with a given spacing therebetween in a vibration input direction, and is displaceable relative to the at least one housing member. The each independent mass member is independently displaced relative to the at least one housing member so that the independent mass member and the housing member are brought into elastic impact against each other at their respective abutting surfaces which are opposed to each other in the vibration input direction.

Abstract: A pneumatically operated active vibration damping device is disclosed, which comprises: a first and a second mounting member elastically connected with each other by an elastic body interposed therebetween; a working air chamber adapted to apply an oscillating force between the first and second mounting member, based on a periodic change of an air pressure in the working air chamber; an air piping system connected to the working air chamber and cooperate with the working air chamber to define a negative pressure applied region; a switch valve connected to the air piping system and operable for connecting the air chamber alternately to a vacuum source and an atmosphere for thereby causing the periodic change of the air pressure in the working air chamber; and at least one pressure-regulating valve connected to the negative pressure applied region and optionally operable for introducing the atmosphere into the negative pressure applied region, when the level of the negative pressure in the negative pressure app

Abstract: An apparatus for the biological treatment of waste fluid from the coating process is presented in the present invention. Said apparatus comprises a biological treatment vessel filled with carriers immobilizing microorganism useful for the treatment of waste fluid from the coating process, a tank in which said biological treatment vessel is set, a heating means to heat said waste fluid in said tank, a stirrer to stir said waste fluid, an aeration means to blow air into said waste fluid, a filter for filtration of said waste fluid having been treated, and a return pass to return filtrate of said waste fluid to said tank.

Abstract: A double-mass type dynamic damper mounted on a rod-shaped oscillating member, which includes a first damper system and a second damper system that are tuned to two different frequency ranges. Each of the damper systems includes a cylindrical mass member disposed radially outwardly of the oscillating member, and an elastic support member for elastically supporting the mass member with respect to the oscillating member. The elastic support members of the two damper systems are disposed in series and connected to each other in the axial direction. The dynamic damper further includes an elastic connector formed by adjacent parts of the two elastic support members, for elastically connecting axially opposed faces of the two mass members.

Abstract: A rod-damper combination comprising an oscillating rod member and a dynamic damper mounted on the rod member is disclosed. The dynamic damper includes a mass portion having a substantially cylindrical shape, and two elastic support members formed on axially opposite sides of the mass portion to elastically support the mass portion. The oscillating rod member includes a small-diameter portion formed at an axially middle portion thereof, and two large-diameter portions formed on axially opposite sides of the small-diameter portion. Alternatively, the rod member includes a middle portion, and two tapered portions on axially opposite sides of the middle portion. The two elastic support members of the dynamic damper are mounted on the two large-diameter or tapered portions of the oscillating rod member, respectively.

Abstract: A rod-damper combination comprising an oscillating rod member and a dynamic damper mounted on the rod member is disclosed. The dynamic damper includes a mass portion having a substantially cylindrical shape, and two elastic support members formed on axially opposite sides of the mass portion to elastically support the mass portion. The oscillating rod member includes a small-diameter portion formed at an axially middle portion thereof, and two large-diameter portions formed on axially opposite sides of the small-diameter portion. Alternatively, the rod member includes a middle portion, and two tapered portions on axially opposite sides of the middle portion. The two elastic support members of the dynamic damper are mounted on the two large-diameter or tapered portions of the oscillating rod member, respectively.

Abstract: Disclosed is a karaoke authoring apparatus for mixing or authoring karaoke music data based on an electronic music sound source. The invention can analyze chronologically, in a sound reproduction block, the musical performance data expressed by a code such as MIDI code and has a pre-inserted event code, and will generate an interrupt in a timer circuit at a time interval based on the tempo instruction on the code. The invention can also acquire, as an individual file at the timing of the event code, an integrated value given by the timer circuit in accordance with the type of event, and combine and arrange these files in chronological order to calculate a time difference between consecutive event codes, for producing time data. The authored data allows color turning of the words of the music, page turning, presentation of the title of the music and a video image update which is performed accurately to the timing as planned, in synchronism with the musical performance.

Abstract: A flexible joint for an exhaust pipe of a motor vehicle which includes: a cylindrical inner layer which consists of a cloth made of ceramic fibers, the inner layer being expansible in an axial direction thereof; an intermediate layer formed of a heat insulating material, for covering an outer circumferential surface of the inner layer; and a cylindrical outer layer disposed radially outwardly of the intermediate layer and formed of an elastic material.

Abstract: A fluid-filled elastic mount wherein an elastic body elastically connecting a first and a second support partially defines a fluid chamber filled with a non-compressible fluid. The elastic mount further includes an oscillating plate which partially defines the fluid chamber and which is supported by the second support such that the oscillating plate is displaceable relative to the second support, and an electrostrictive/magnetostrictive element for oscillating the oscillating plate to thereby change a pressure of the fluid in the fluid chamber. The second support has a small-diameter cylindrical portion to which the elastic body is secured, and a large-diameter cylindrical portion in which the oscillating plate having a large surface area is accommodated. The electrostrictive/magnetostrictive element is interposed between the oscillating plate and a support member fixed to the second support.

Abstract: A fluid-filled elastic mount wherein an elastic body elastically connecting a first and a second support partially defines a fluid chamber filled with a non-compressible fluid. The elastic mount further includes an oscillating plate which partially defines the fluid chamber and which is supported by the second support such that the oscillating plate is displaceable relative to the second support, and an electrostrictive/magnetostrictive element for oscillating the oscillating plate to thereby change a pressure of the fluid in the fluid chamber. The second support has a small-diameter cylindrical portion to which the elastic body is secured, and a large-diameter cylindrical portion in which the oscillating plate having a large surface area is accommodated. The electrostrictive/magnetostrictive element is interposed between the oscillating plate and a support member fixed to the second support.

Abstract: A dynamic damper for a hollow drive shaft, including a damper mass member disposed in a hollow bore of the drive shaft, such that the damper mass member is coaxial with the drive shaft with a predetermined clearance being provided between the damper mass member and an inner circumferential surface of the drive shaft; and a pair of elastic support members respectively fixed to axially opposite ends of the damper mass member, the support members connecting the damper mass member to the drive shaft, thereby elastically supporting the damper mass member.

Abstract: A method of supporting an exhaust pipe for an engine of a motor vehicle, on a vehicle body is disclosed. Initially, the exhaust pipe is formed such that the pipe is flexible at an intermediate point thereof in the vicinity of a rear axle of the vehicle, on which a nodal point of a primary natural vibration mode of the vehicle lies. The exhaust pipe has a rear section which extends rearwards from the intermediate point. Then, the rear section of the exhaust pipe is elastically supported on the vehicle body, such that the rear section is oscillatable about the intermediate point relative to the vehicle body. With a natural frequency of the rear section of the exhaust pipe tuned to a primary natural frequency of the vehicle body, the rear section of the pipe serves as a dynamic damper for the vehicle body. Also disclosed is a support structure for supporting the exhaust pipe in the manner described above.

Abstract: A fluid-filled mount having first and second elastic bodies which elastically connect an inner and an outer sleeve and partially define a pressure-receiving chamber which communicates with a variable-volume equilibrium chamber through an orifice passage. The first elastic body includes two radial portions extending from diametrically opposite circumferential portions of the inner sleeve, in respective radial directions almost perpendicular to a diametric direction in which a static load acts on the mount. A connecting member extends from the inner sleeve between the above two radial portions and which is located on one of diametrically opposite sides of the inner sleeve on which the radial distance between the two sleeves is reduced by the static load.

Abstract: A fluid-filled elastic mount including an elastic body which is interposed between radially spaced-apart inner and outer sleeves and which at least partially defines a first pressure-receiving chamber containing a non-compressible fluid. A partition is provided for partially defining at least one second pressure-receiving chamber filled with the fluid. The partition includes a displaceable flexible layer which permits a pressure change in the first pressure-receiving chamber to be transmitted to the second pressure-receiving chamber or chambers. A variable-volume equilibrium chamber filled with the fluid is partially defined by a flexible diaphragm, and communicates with the first pressure-receiving chamber through a first orifice passage, and with each second pressure-receiving chamber through a second orifice passage whose ratio of a transverse cross sectional area to a length is larger than that of the first orifice passage.