Abstract: It is an object of the present invention to provide a thermoplastic adhesive sheet excellent in initial adhesiveness to an imide group-containing resin compounded with a filler and also excellent in electrolyte-resistance adhesiveness, and the object is achieved by a thermoplastic adhesive sheet that has a functional group introduced into a surface by surface modification and that is bonded to an imide group-containing resin compounded with a filler. The functional group is preferably at least one selected from the group of a hydroxyl group, a carboxyl group, a carbonyl group, a maleic anhydride group, a fumaric anhydride group, a maleimide group, a fluorosulfuryl group, a metallic base of a sulfonate group, and a sulfonate group.

Abstract: A combination viscous and resilient type of mount comprises a rigid boss adapted to be connected to a moving component such as an reciprocating engine, an annular flange adapted to be connected to a stationary support, a resilient element connected between the boss and the annular flange to resiliently supporting the moving component relative to the stationary support, the resilient element having a frustconical shape, a deformable element cooperating with the resilient element to define a chamber for viscous fluid, and a rigid partition connected to the flange and adapted to divide the fluid chamber into a working chamber and a compensation chamber, the partition including at least one orifice through which the two chambers are communicated with each other. A rigid spacer is interposed between the boss and a flange of the moving component and has an annular projection. A rigid ring is inserted into the resilient element and has an outwardly extending annular flange.

Abstract: A vibration preventing apparatus using fluid includes a main and an auxiliary fluid chamber in which fluid is confined. The main and auxiliary fluid chambers are communicated to each other by three kinds of orifices which exert different degrees of resistance to the flow of fluid. Two of such orifices which are smaller in resistance than the other are opened and closed independently of each other. The main fluid chamber is partly defined by an elastic member which supports a vibrating body. On vibration of the vibrating member, the volume of the main fluid chamber is varied to displace the fluid through any of the orifices. The particular orifices through which the fluid is to flow are determined based on the instantaneous vibration, whereby the vibration is absorbed effectively.

Abstract: A vibration isolator supports a vibrating body vibrating in a wide frequency range while isolating produced vibrations in the entire frequency range. The vibration isolator includes a first attachment member adapted to be connected to the vibrating body, a second attachment member adapted to be connected to the structural body, and an elastically deformable resilient member fixed to and interconnecting the first and second attachment members, the resilient member being elastically deformable in response to relative movement of the first attachment member with respect to the second attachment member. The vibration isolator has a first chamber defined at least partly by the resilient member and having a volume variable dependent on elastic deformation of the resilient member, and a second chamber communicating with the first chamber through a communication structure and having a volume variable dependent on variation of the volume of the first chamber, the first and second chambers being filled with a liquid.

Abstract: A compound engine mount has a first and a second fluid chamber defined thereinside and communicated to each other by a first orifice which is controllable in length and a second orifice which is controllable in effective path area. In an engine idling range, the two fluid chambers are intercommunicated by the first orifice only. The length of the first orifice is controlled to change the mass of a fluid inside of the orifice in response to a length of the orifice, whereby the dynamic spring constant of the engine mount is controlled. In a high engine speed range, the fluid chambers are intercommunicated by the second orifice resulting in a decrease in the dynamic spring constant of the engine mount. The effective area of the second orifice is controllable to control the dynamic spring constant.

Abstract: A vibration isolator for mounting a vibrating body on a structural body includes a first attachment member adapted to be connected to the vibrating body, a second attachment member adapted to be connected to the structural body, and an elastically deformable resilient member fixed to and interconnecting the first and second attachment members, the resilient member being elastically deformable in response to relative movement of the first attachment member with respect to the second attachment member. The vibration isolator has a first chamber defined at least partly by the resilient member and having a volume variable dependent on elastic deformation of the resilient member, and a second chamber operatively communicating with the first chamber through an operative communication structure and having a volume variable dependent on variation of the volume of the first chamber, the first and second chambers being filled with a liquid.