Abstract: A shape memory foam member is disclosed. A coefficient of water absorption of the shape memory foam member is in the range between 0.01 g/cm3 and 0.2 g/cm3 in a non-compressed state. The shape memory foam member is compressed with heating; cooled with keeping the shape memory foam member in the compressed state; and released from the compressive pressure on the shape memory foam member after cooling. The original shape of the shape memory foam member is substantially recovered by heating.

Abstract: The present invention provides an anti-squeal shim for use in a disc brake comprising a pressing member for pressing a brake pad toward a disc rotor and a back plate of the brake pad in a disc brake, wherein the anti-squeal shim comprises a plated steel plate and a rubber layer, wherein the rubber layer is fixed on at least one side thereof.

Abstract: In order to provide a shim structure capable of controlling the generation of a voltage by the difference in the standard electrode potentials specific to metals between an aluminum caliper and a metal plate, the shim structure abutting against the backing plate of a friction material, which forms a disc pad, is constituted by providing rubber layers on both sides of an aluminum alloy plate. Since the aluminum alloy plate is used for the metal plate constituting the shim structure, even when a steel caliper is replaced with the aluminum caliper, the generation of the voltage generated between metals is controlled to a lesser degree, thereby preventing corrosion of the caliper arising therefrom.

Abstract: A shape memory foam material is obtained by impregnating a base foam material in a thermoplastic substance, heating and compressing the same at a temperature the same as or higher than the softening temperature of a thermoplastic substance as well as less than the softening temperature of the base foam material, cooling down while retaining the compressed state, and releasing the pressure after the cooling operation. The compressed state of the shape memory foam material is retained in a room temperature by a hardened product of a thermoplastic substance existing at least in the surface layer part thereof. The compressed state is released by softening the hardened product by heating. Moreover, a soundproof cover for an automobile engine is obtained using this shape memory foam.

Abstract: In order to provide durable shock absorbers, a bearing to bear a piston rod is enhanced in wear resistance and made low in friction. A cylindrical-shaped bearing for reciprocatory sliding, to bear a piston rod comprises lengthy inclined portions and a short parallel portion on an inner-peripheral surface of the bearing.

Abstract: The invention provides a hydraulic shock absorber which can satisfy a demand of weight saving for a rod guide and can reduce a manufacturing cost. Since a rod guide is constituted by a press molded product formed by press molding a sheet member, and at least a sliding surface of the rod guide with respect to a piston rod is coated with a sliding synthetic resin layer, it is possible to achieve a widely weight saving in comparison with the case of using a metal sintered housing, it is possible to secure a sufficient rigidity in comparison with the case that an entire of the rod guide is formed by a synthetic resin for sliding, and it is possible to achieve a further weight saving in comparison with the structure in which a composite sliding member is pressed.

Abstract: It is intended to provide a terminal control device and a universal serial bus system capable of achieving stable system operation wherein the termination control device controls termination considering propagation delay time required for bus voltage level to shift to termination voltage when a universal serial bus system is terminated and an erroneous detection due to propagation delay time of voltage level shifting is avoided, accordingly. A pull-up start signal PU is inputted to a mask counter 11, timing operation is conducted in a manner of count operation. As a result of count operation, mask count signals MC are outputted to a comparator 13. Masking-time setting signals SC are inputted to the comparator 13. The mask count signals MC and the masking-time setting signals SC are compared to calculate a predetermined length of masking time that begins with start of pull-up. During this masking time, detection of SE0 state or bus-reset state is masked.

Abstract: The invention provides a method of processing an inner surface of a bearing having a cylindrical shape which bearing includes a resin layer composed mainly of a synthetic resin as the inner surface, the method improving roughness of the inner surface and dimensional accuracy of an inner diameter of the bearing without cutting the inner surface. According to the method, the bearing is press-fitted into a jig and then the jig is mounted on a chuck. Next, a mandrel having a cylindrical bar shape is inserted into an inner diameter portion of the bearing and then the mandrel is heated by a heater up to 250° C., for example. The mandrel is expanded due to thermal expansion by the heating so that the inner surface, i.e., a surface of the resin layer is pressed by a press face of a peripheral surface of the mandrel.

Abstract: A sound absorbing structure comprising at least one porous member including a plurality of holes, and the holes are at least one kind of through holes and non-through holes. It is preferable that a plurality of porous members are stacked. It is also preferable that the holes of porous members are formed as diameter-varied holes, and an area of opening of each diameter-varied hole formed in the surface opposite to a sound source is largest and the area of opening of each the diameter-varied hole is reduced in a direction of the thickness of the porous member. Moreover, it is also preferable that the sound absorbing structure further comprises a coating film formed on at least a surface of the porous member which is opposite to a sound source wherein the holes penetrates the coating film and the porous member.

Abstract: In prior art, the wear resistance and frictional properties of a sliding member are improved by adding bismuth, an alkaline earth metal salt or the like, but not lead, to a polytetrafluoroethylene used as a base resin, in view of the undesirable influences of lead on the environment. However, a further improved wear resistance at a high PV value has been desirable. In the present invention, a sliding member having excellent wear resistance and frictional properties even when used at a high PV value can be obtained by using a thermosetting resin as a base resin in a proportion of 50 to 80 vol % and adding thereto a PTFE with a molecular weight of 3,000,000 or more in a proportion of 10 to 40 vol % and bismuth and/or a bismuth alloy in a proportion of 1 to 20 vol %.

Abstract: There is provided a double-sided sliding thrust bearing of a plate shape adapted to be in sliding contact with a counterpart on each of both faces of the thrust bearing, comprising a bearing structure provided with a plate-shaped base member having an anchor effect on each of both faces thereof, and a sliding layer having a thickness not less than 30 &mgr;m on each of the faces of said base member which sliding layer is made of a thermosetting resin-containing material. By making the thickness of the sliding layer 10 not less than 30 &mgr;m, it becomes possible for the thrust bearing 1 to slide shoes for a longer time even when being used in a dry state and the sliding layer 10 comes to be hardly peeled off from the base member 2 because of the anchor effect of the base member 2. Further, the mechanical strength and thermal conductivity of the thrust bearing 1 can be improved by the base member 2 located between the sliding layers 10.

Abstract: Bush 4 is fabricated by providing porous sintered metal layer 7 of copper on the surface side of back metal layer 5 of steel plate through copper plating layer 6 and coating the inside and the surface of porous sintered metal layer 7 with sliding material 8 by impregnation. Sliding material 8 comprises 1-25 vol.% of tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin, 1-25 vol.% of at least one member selected from the group consisting of oxybenzoylpolyester resin and polyimide resin and 0.1-10 vol.% of hard particles having a Mohs hardness of 4 or more and average particle sizes of 5 &mgr;m or less such as Al2O3 and SiC, the balance being polytetrafluoroethylene resin (55 vol.% or more of the total siding material) as the main component. 0.5-25 vol.% of a solid lubricant such as graphite and MoS2 can be further contained in total together with the hard particles.

Abstract: A sound absorbing structure including a film with through holes formed is laminated on a porous member having communicating voids on the side facing a sound source. At least one of the through holes has an opening area of 19 mm2 or more, and the total of the opening area accounts for 1 to 70% with respect to the area of a film formation surface on the porous member. A soundproof cover including the sound absorbing structure disposed on the inner surface of a cover main body are also provided.

Abstract: Disclosed is a composite sliding material consisting of a back metal, a porous alloy layer which is formed on the surface of the back metal by sintering a copper alloy powder, and a resin layer which is formed so as to impregnate into and cover the porous alloy layer. The alloy layer consists of sintered copper alloy particles and has a thickness of superimposed plural particles. The copper alloy powder has an average particle size of 25 to 100 &mgr;m so that the composite sliding material has smallersliding-contact resistance.

Abstract: A vibration damping shim structure is provided, which not only can sufficiently exert vibration damping effect in a wide range of temperatures, but also can prevent a squeal phenomenon particularly in low temperatures.

Abstract: A vibration damping shim structure is provided, which not only can sufficiently exert vibration damping effect in a wide range of temperatures, but also can prevent a squeal phenomenon particularly in low temperatures. A rubber coating layer a1 is formed on one side of a first constraint plate a2 of a metallic plate and a second constraint plate a4 is stuck to the other side of the first constraint plate a2 with a adhesive layer a3 placed in-between. The ratio of the thickness of the first constraint plate a2 to a sum total of the thickness of the back plate b1 forming a disc brake B and the second constraint plate a4 is taken as within 0.1 to 0.2, and the second constraint plate a4 is used so as to be brought into contact with the back plate b1.

Abstract: In order to obtain a sliding material which does not include lead particles and is harmless to the environment, there is provided a sliding material which includes, by volume, 3 to 40% bismuth particles but no lead particles, while having a low coefficient of friction and excellent wear resistance.

Abstract: A soundproof cover to be mounted on the engine of an automobile is provided. The soundproof cover includes a foam material having a mixed cell structure of open cells and closed cells and a water absorption coefficient of 0.01 g/cm3 or more and less than 0.5 g/cm3. The foam material is provided along the circumferential rim of a cover main body surface facing an engine, and projects to the engine side by a predetermined height such that the foam material closes the gap with respect to the engine at the time it is mounted on the engine.

Abstract: A sound absorbing structure including a film with through holes formed is laminated on a porous member having communicating voids on the side facing a sound source. At least one of the through holes has an opening area of 19 mm2 or more, and the total of the opening area accounts for 1 to 70% with respect to the area of a film formation surface on the porous member. A soundproof cover including the sound absorbing structure disposed on the inner surface of a cover main body are also provided.

Abstract: A shape memory foam material is obtained by impregnating a base foam material in a thermoplastic substance, heating and compressing the same at a temperature the same as or higher than the softening temperature of a thermoplastic substance as well as less than the softening temperature of the base foam material, cooling down while retaining the compressed state, and releasing the pressure after the cooling operation. The compressed state of the shape memory foam material is retained in a room temperature by a hardened product of a thermoplastic substance existing at least in the surface layer part thereof. The compressed state is released by softening the hardened product by heating. Moreover, a soundproof cover for an automobile engine is obtained using this shape memory foam.