Abstract: A sliding contact surface-forming material includes a reinforcing base impregnated with a resol-type phenolic resin having polytetrafluoroethylene resin dispersed therein. The reinforcing base is composed of a woven fabric formed by using, respectively as the warp and the weft, a ply yarn which is formed by paralleling at least two strands of a single twist yarn spun from fluorine-containing resin fiber and a single twist yarn spun from polyphenylene sulfide fiber, and by twisting them in the direction opposite to the direction in which the single twist yarns were spun. Also, a multi-layered sliding contact component having the overall shape of a flat plate or a circular cylinder includes the sliding contact surface-forming material so as to configure at least the sliding-contact surface thereof.

Abstract: A damper is provided which damps an applied external force in accordance with the strength of the external force (impact strength). The damper 10 comprises a vessel 20 having a cylindrical chamber 21 filled with a viscous fluid, a turn member 60 turned by the external force, a slider member 40 which is moved in the chamber 21 of the vessel 20 by turn of the turn member 60, partition member 80 engaged with the slider member 40, a coiled spring 100 for energizing the slider member 40 toward the turn member 60, and a resin cap 100 blocking an opening of the vessel 20.

Abstract: A damper 1 includes a vessel 2; a partitioning member 6 which partitions the interior of the vessel 2 into two accommodation chambers 4 and 5 for accommodating a viscous fluid 3, and which rotates together with the vessel 2 in an R direction and is movable in an axial direction A; a moving force imparting means 7 for imparting to the partitioning member 6 a moving force in an A1 direction by the input of rotation in an R1 direction; a resilient means 8 for resiliently urging the partitioning member 6 in an A2 direction; a through hole 9 for allowing the two accommodation chambers 4 and 5 inside the vessel 2 to communicate with each other; and an allowing/limiting member 10 which allows the viscous fluid 3 accommodated in the two accommodation chambers 4 and 5 in the vessel 2 to flow reciprocally between the two accommodation chambers 4 and 5 through the through hole 9, and which limits the flow of the viscous fluid 3 in the accommodation chamber 4 into the accommodation chamber 5 in the A2 direction through t

Abstract: There are provided a solid lubricant having an island-and-sea structure, which, with the sea phase strengthened, remains free of troubles such as chipping even in use under high load conditions, and a sliding member having the solid lubricant embedded therein. The solid lubricant comprises 1 to 10% by volume of a polyethylene resin, 20 to 60% by volume of a hydrocarbon-based wax, 10 to 60% by volume of melamine cyanurate, 5 to 15% by volume of a polyamide resin, and 2 to 10% by volume of a modified polyethylene resin. The sliding member has the solid lubricant embedded in pores or grooves formed in a sliding surface of the sliding member body.

Abstract: A damper 1 includes a vessel 2; a partitioning member 6 which partitions an internal space of the vessel 2 into two accommodation chambers 4 and 5 for accommodating a viscous fluid 3 and which is movable with respect to the vessel 2; a moving force imparting device 7 for imparting to the partitioning member 6 a moving force in an A1 direction by the input of rotation in an R2 direction with respect to the vessel 2, so that the moving velocity is set to one corresponding to the rotating velocity of that input of rotation; a resilient device 8 for resiliently urging the partitioning member 6 in an A2 direction; a communicating hole 9 formed in the partitioning member 6; and a flow limiting device 10 for limiting the flow of the viscous fluid 3 in the accommodating chamber 4 into the accommodating chamber 5 through the communicating hole 9 when the internal pressure of the viscous fluid 3 accommodated in the accommodating chamber 4 has exceeded a fixed value.

Abstract: A spherical annular seal member includes a spherical annular base member defined by a cylindrical inner surface, a partially convex spherical outer surface, and large- and small-diameter-side annular end faces and of the partially convex spherical outer surface, as well as an expandable annular coating layer formed integrally on the cylindrical inner surface of the spherical annular base member. The coating layer consists of a mixture of acid-treated graphite and wax.

Abstract: Provided is a highly versatile conductive metallic coating material which is free from the limitation related to a facility without handling complication, and which can maintain its anticorrosive action for a long period. Specifically provided is a conductive metallic coating material which has an organic resin component and a metal component containing aluminum and magnesium and which exhibits a sacrificial anticorrosive reaction on iron. A content ratio of the metal component and the organic resin component is desirably 98:2 to 80:20 in terms of weight ratio. The conductive metallic coating material according to the present invention is usable for preventing corrosion of a building structure or a civil engineering structure and for repairing a corrosion proof treated surface of an existing building structure or a civil engineering structure.

Abstract: An iron-based sintered sliding member that contains no free cementite in its structure and is excellent in tribological property such as friction and wear, and a method of manufacturing that iron-based sintered sliding member are provided. To iron powder as a main component, 3-20 mass % alloy powder, which comprises 4-6 mass % manganese, 3-5 mass % iron, and copper as a remaining component, and 1-5 mass % carbon powder are blended, and mixed to obtain powder mixture. Then, the powder mixture is filled in a mold and compacted to make a green compact of a desired shape. This green compact is sintered at a temperature of 1000-1100 degrees Celsius for 60 minutes in a heating furnace whose inside is adjusted to be a neutral or reducing atmosphere.

Abstract: A damper includes a vessel; a partitioning member which partitions an internal space of the vessel into two accommodation chambers for accommodating a viscous fluid and which is movable with respect to the vessel; a moving force imparting device for imparting to the partitioning member a moving force in an A1 direction by the input of rotation in an R2 direction with respect to the vessel, so that the moving velocity is set to one corresponding to the rotating velocity of that input of rotation; a resilient device for resiliently urging the partitioning member in an A2 direction; a communicating hole formed in the partitioning member; and a flow limiting device for limiting the flow of the viscous fluid in the accommodating chamber into the accommodating chamber through the communicating hole when the internal pressure of the viscous fluid accommodated in the accommodating chamber has exceeded a fixed value.

Abstract: A friction damper includes: a base body; a support secured to an elongated member of the base body and having a through hole; a rod which extends in such a manner as to pass through the through hole of the support and is movable in an axial direction with respect to the support; a friction member which has a hollow cylindrical portion interposed between the support and a main body portion of the rod in the through hole of the support, and which is fixed immovably with respect to the relative movement of the rod in the axial direction with respect to the base body; and a tightening device provided for the support so as to tighten the hollow cylindrical portion of the friction member onto the main body portion of the rod.

Abstract: The present invention relates to a copper-based sintered slide member comprising 0.5 to 20% by weight of tin, 0.1 to 35% by weight of manganese, 2 to 25% by weight of a solid lubricant and the balance essentially consisting of copper; and a multilayer copper-based sintered slide member comprising a copper-based alloy sintered layer and a metal backing plate which are formed into an integral multilayer structure, wherein the copper-based alloy sintered layer comprises 0.5 to 20% by weight of tin, 0.1 to 35% by weight of manganese, 2 to 25% by weight of a solid lubricant and the balance essentially consisting of copper. The above slide members are in the form of a lead-free copper-based sintered slide member.

Abstract: A bush bearing (1) is a wrapped bush bearing which has a cylindrical inner peripheral surface (2) serving as a sliding surface as well as an outer peripheral surface (3), and whose abutting faces (4) are abutted against each other. The outer peripheral surface (3) includes a cylindrical surface (11); a tapered surface (13) interposed between the cylindrical surface (11) and one annular end face (12) in an axial direction X and formed by roll forming; a smooth circular arc surface (14) interposed between the tapered surface (13) and the cylindrical surface (11); and a smooth circular arc surface (15) interposed between the tapered surface (13) and the end face (12).

Abstract: A one-way valve having a conduit for allowing liquid to flow therein, a valve element provided in the conduit, a hole portion provided in the conduit on the upstream side of the valve element and configured to be brought into a closed state by being closed by the valve element, and a spring that urges the valve element in the direction to close the hole portion, in which the peripheral surface of the valve element is formed with a first surface and a second surface intersecting the direction of movement of the valve element and generating a component force in the direction to close the hole portion when an urging force of the spring is applied, the first surface and the second surface are formed so as to increase the component force in the direction to close the hole portion as the valve element approaches the hole.

Abstract: A damper is provided which damps an applied external force in accordance with the strength of the external force (impact strength). The damper 10 comprises a vessel 20 having a cylindrical chamber 21 filled with a viscous fluid, a turn member 60 turned by the external force, a slider member 40 which is moved in the chamber 21 of the vessel 20 by turn of the turn member 60, partition member 80 engaged with the slider member 40, a coiled spring 100 for energizing the slider member 40 toward the turn member 60, and a resin cap 100 blocking an opening of the vessel 20.

Abstract: A high-strength brass alloy for sliding members, consists of, by mass %, 17 to 28% of Zn, 5 to 10% of Al, 4 to 10% of Mn, 1 to 5% of Fe, 0.1 to 3% of Ni, 0.5 to 3% of Si, and the balance of Cu and inevitable impurities. The high-strength brass alloy has a structure that includes a matrix of a single phase structure of the ? phase and includes at least one of Fe—Mn—Si intermetallic compounds in the form of aciculae, spheres, or petals dispersed in the ? phase.

Abstract: A punch unit for a press die is provided for punching a hole in sheet metal. The punch unit includes a piercing punch provided with a sharp projection, a plunger for pressing the piercing punch, a cylinder for supporting the piercing punch and the plunger slidably in a punching direction, and a coil spring for retracting the piercing punch and the plunger. Also disclosed is a press die for punching a hole in sheet metal using the punch unit.

Abstract: A vibrational energy absorbing apparatus 1 includes: a reciprocating member 2 which is reciprocatable in H directions between positive and negative maximum displacement positions D±max with respect to an origin position O; a damping-force generating means 3 for generating a damping force R with respect to the reciprocating motion of the reciprocating member 2 in the H directions; and a controlling means 4 for controlling the damping-force generating means 3 so as to cause the damping-force generating means 3 to generate a fixed damping force R in the respective movement of the reciprocating member 2 in the H direction from the positive and negative maximum displacement position D±max to the origin position O in the reciprocating motion thereof in the H directions, while causing the damping-force generating means 3 to substantially not generate the damping force R in the respective movement of the reciprocating member 2 in the H direction from the origin position O to the positive and negative maximum displace

Abstract: A bush bearing (1) is a wrapped bush bearing which has a cylindrical inner peripheral surface (2) serving as a sliding surface as well as an outer peripheral surface (3), and whose abutting faces (4) are abutted against each other. The outer peripheral surface (3) includes a cylindrical surface (11); a tapered surface (13) interposed between the cylindrical surface (11) and one annular end face (12) in an axial direction X and formed by roll forming; a smooth circular arc surface (14) interposed between the tapered surface (13) and the cylindrical surface (11); and a smooth circular arc surface (15) interposed between the tapered surface (13) and the end face (12).

Abstract: A rack-and-pinion type steering apparatus 1 includes a gear case 3 made of aluminum or an aluminum alloy and having a hollow portion 2; a steering shaft 6 rotatably supported by the gear case 3 through rolling bearings 4 and 5; a pinion 7 which is rotatably supported in the gear case 3 through the steering shaft 6; a rack bar 9 on which rack teeth 8 meshing with the pinion 7 are formed; and a rack guide 10 which is disposed in the hollow portion 2 inside the gear case 3 and supports the rack bar 9 slidably with respect to its moving direction A.

Abstract: A multilayered sliding member has a resin composition filled in pores of, and coated on the surface of, a porous sintered metal layer 2 formed on the surface of a metallic backing plate 1. The resin composition is formed by compounding a phosphate, a carbon black, a melt moldable fluororesin, and a PTFE serving as a principal component, and is preferably formed by further containing graphite and/or a low molecular weight PTFE.