Abstract: A bush bearing 7 includes a bearing body 8 having an inner peripheral surface 7 which is brought into contact with a cylindrical outer peripheral surface 6 of a rotating shaft portion 5 so as to be rotatable in an R direction, groove means 10 provided on an outer peripheral surface 9 of said bearing body 8 so as to extend in the R direction, and elastic ring means 16 fitted on said groove means 10 and having a pair of projecting portions 12 and 13 and portion 14, the pair of projecting portions 12 and 13 partially projecting radially outward from the outer peripheral surface 9 of said bearing body 8 in an A direction, the portion 14 being provided at positions in the R direction between the pair of projecting portions 12 and 13, and not projecting radially outward from the outer peripheral surface 9 of said bearing body 8.

Abstract: In a spherical annular seal member 38, a spherical annular base member 36 is constructed so as to be provided with structural integrity as a heat-resistant material 6 and a reinforcing member 5 are compressed to each other and intertwined with each other. In an outer layer 37, the heat-resistant material 6, a sintered solid lubricant constituted by a lubricating composition, and the reinforcing member 5 made from a metal wire net are compressed such that the sintered solid lubricant and the heat-resistant material 6 are filled in meshes of the metal wire net of the reinforcing member 5, and the solid lubricant, the heat-resistant material 6, and the reinforcing member 5 are integrated in mixed form, an outer surface 39 of that outer layer 37 being thus formed into a smooth surface 42 in which a surface 40 constituted by the reinforcing member 5 and a surface 41 constituted by the sintered solid lubricant are present in mixed form.

Abstract: A natural ventilation apparatus 1 includes a window frame 2 which is installed in a building; a framed panel 4 disposed in an opening portion 3 defined by the window frame 2; and opening/closing means 5 for opening and closing the opening portion 3 on the basis of an air current. The opening portion 3 is adapted to be opened by the opening portion opening movement of the framed panel 4 moving toward a building exterior 7 side, and to be closed by the opening portion closing movement of the framed panel 4 moving toward a building interior 8 side.

Abstract: An active dynamic vibration absorber 1 includes a weight 2; a frame 3 which is adjacent to the weight 2 in such a manner as to surround the weight 2 with clearances X1 and Y1; a holding mechanism 4 which is interposed between the weight 2 and the frame 3 and holds the weight 2 movably in an X direction with respect to the frame 3, while holding the weight 2 immovably in a Y direction and a vertical direction V; a detecting means 5 for detecting the relative vibration of a predetermined value in the X direction of the weight 2 with respect to the frame 3; and a moving means 6 for relatively moving the weight 2 in the X direction with respect to the frame 3 on the basis of a detection signal from the detecting means 5 such that the relative movement of the weight 2 in the X direction with respect to the frame 3 is allowed, while the vibrational displacement of the weight 2 in the X direction with respect to the frame 3 is reduced.

Abstract: A mast assembly for a forklift truck includes a plurality of guide units. At least one of the guide units includes a sliding pad member made of a plastic material and having a block-shaped body, which is hollow, is open at its base side, and has a rectangular ring-shaped cross section. The sliding pad member has a rectangular, plain, front wall provided at the side of the block-shaped body opposite to the base side thereof. The front wall has a sliding contact surface. Reinforcement ribs are formed on the inner surface of the front wall. Grooves are formed in the sliding contact surface, extending along the respective ones of the reinforcement ribs and helping avoid formation of shrinkage depressions in the sliding contact surface. The block-shaped body includes first and second pairs of opposing side walls. Tabs are formed on the first pair of opposing side walls.

Abstract: A spherical annular seal member 34 includes a spherical annular base member 32 defined by a cylindrical inner surface 28, a partially convex spherical surface 29, and annular end faces 30, 31, as well as an outer layer 33 formed integrally on the partially convex spherical surface 29. The spherical annular base member 32 includes a reinforcing member 5 made from a metal wire net 4 and a heat-resistant material 6 containing expanded graphite and a phosphate and integrated with the reinforcing member 5 in mixed form, and the outer layer includes the heat-resistant material 6 containing the expanded graphite and the phosphate and the reinforcing member 5 made from the metal wire net 4 integrated with the heat-resistant material 6 in mixed form, the expanded graphite in the heat-resistant material 6 having an ash content of not more than 0.1% by mass and a graphite content of not less than 99.7% by mass.

Abstract: A thrust sliding bearing 1 includes: a synthetic resin-made upper casing 2; a synthetic resin-made lower casing 3 which is superposed on the upper casing 2 so as to be rotatable about an axis O in a circumferential direction R relative to the upper casing 2; a synthetic resin-made thrust sliding bearing piece 5 disposed in an annular space 4 between the upper casing 2 and the lower casing 3; and a synthetic resin-made seal member 8 for sealing respective other end portions, communicating with the outside, of a gap 6 on an inner peripheral side and a gap 7 on an outer peripheral side in a radial direction A between the upper casing 2 and the lower casing 3, the gap 6 and the gap 7 respectively communicating with the annular space 4 at their one annular end portions.

Abstract: A damper includes a vessel; a partitioning member which partitions the interior of the vessel into two chambers for accommodating a viscous fluid, and which rotates together with the vessel in a direction and is movable in an axial direction; a moving force imparting structure for imparting to the partitioning member a moving force in a direction by the input of rotation in a direction; a resilient structure for resiliently urging the partitioning member in a direction; a through hole for allowing the chambers inside the vessel to communicate with each other; and an allowing/limiting member which allows the viscous fluid to flow reciprocally between the chambers through the through hole, and which limits the flow of the viscous fluid in one chamber into the other chamber in the direction through the through hole.

Abstract: An absolute displacement sensor 1 includes a sensor housing 2 serving as a detection object; a mass body 3 having a mass m which is movably supported by the sensor housing 2 with a spring coefficient k and a damping coefficient c; a detecting means 4 which electrically detects a relative velocity of the sensor housing 2 with respect to the mass body 3; a feedback control means 5 which controls the absolute displacement of the mass body 3 attributable to the absolute displacement of the sensor housing 2 by positively feeding back the relative displacement and by negatively feeding back a relative acceleration obtained by primarily differentiating the relative velocity, respectively; and a phase lag compensation means 6 which performs phase lag compensation with respect to the relative displacement.

Abstract: A bush bearing 1 is comprised of: a synthetic resin-made bush 15 including a flexible semi-split cylindrical body 5 having an abutment portion 3 for slidably abutting against a rack shaft 25 and including a flexible open-ended annular body 14 which has a portion 6 formed integrally at one end face of the semi-split cylindrical body 5 and circular arc-shaped extended portions 12 and 13 whose distal ends 9 and 10 are opposed to each other with a clearance 11 in a circumferential direction R; and an elastic member 22 including an elastic body 21 for abutting against an outer surface 20 of the semi-split cylindrical body 5 and retained portions 16 and 17 which are respectively retained by both end portions 23 and 24.

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: In a multilayered sintered sliding member, a porous sintered alloy layer comprising 3 to 10 wt. % of an Sn component, 10 to 30 wt. % of an Ni component, 0.5 to 4 wt. % of a P component, 30 to 50 wt. % of an Fe component, 1 to 10 wt. % of a high-speed tool steel component, 1 to 5 wt. % of a graphite component, and 20 to 55 wt. % of a copper component is integrally diffusion-bonded to a backing plate.

Abstract: A thrust sliding bearing 1 includes a synthetic resin-made annular bearing body 4 having an annular upper surface 2 and an annular engaging projection 3; a synthetic resin-made annular bearing body 6; a synthetic resin-made thrust sliding bearing piece 7; an annular upper cover 9 having engaging projections 8 which engage the engaging projection 3 of the bearing body 4; and an annular metal plate 15 interposed between the bearing body 6 and the annular upper cover 9.

Abstract: A damper includes a vessel; a partitioning member which partitions the interior of the vessel into two chambers for accommodating a viscous fluid, and which rotates together with the vessel in a direction and is movable in an axial direction; a moving force imparting structure for imparting to the partitioning member a moving force in a direction by the input of rotation in a direction; a resilient structure for resiliently urging the partitioning member in a direction; a through hole for allowing the chambers inside the vessel to communicate with each other; and an allowing/limiting member which allows the viscous fluid to flow reciprocally between the chambers through the through hole, and which limits the flow of the viscous fluid in one chamber into the other chamber in the direction through the through hole.

Abstract: A solid lubricant for being embedded in pores or grooves formed at a sliding surface of a sliding member body, comprises 5 to 30% by volume of a polyethylene resin, 20 to 60% by volume of a hydrocarbon-based wax and 10 to 60% by volume of melamine cyanurate. Such a solid lubricant can exhibit sliding properties identical to or higher than those of lead-containing solid lubricants, even under high load conditions.

Abstract: A trimming press working apparatus 1 includes a trimming means 6 for cutting a plate material 2 along a trimming line 5 which divides a product portion 3 from a non-product portion 4 in the plate material 2; a scrap cutting means 9 for cutting the non-product portion 4 along scrap severing lines 7 each intersecting the trimming line 5 to make the non-product portion 4 into a plurality of scrap pieces 8; and a pad 10 for pressurizing and restraining the product portion 3 of the plate material 2.

Abstract: A bearing mechanism 1 includes a housing 3 having a cylindrical inner peripheral surface 2, a rack shaft 5 inserted and secured in the housing 3 and having a cylindrical outer peripheral surface 4, and a sliding bearing 6 interposed between the inner peripheral surface 2 of the housing 3 and the outer peripheral surface 4 of the rack shaft 5.

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 thrust sliding bearing 1 includes a synthetic resin-made bearing body 4 having an annular upper surface 2 and an annular outer peripheral surface 3; a synthetic resin-made bearing body 6 which is superposed on the bearing body 4 so as to be relatively rotatable; a synthetic resin-made thrust sliding bearing piece 7 interposed between the annular upper surface 2 of the bearing body 4 and an annular lower surface 5 of the bearing body 6; an annular upper cover 10 having an annular engaging inner peripheral surface 9 which engages an annular engaging outer peripheral surface 8 of the bearing body 4; and an annular metal plate 15 interposed between an annular upper surface 11 of the bearing body 6 and a lower surface 14 of the annular upper cover 10.

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 being 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 polyester fiber, and by twisting them in the direction opposite to the direction in which the single twist yarns were spun Additionally, a multi-layered sliding contact component having the overall shape of a flat plate or a circular cylinder includes the above-described sliding contact surface-forming material so as to configure at least the sliding-contact surface thereof.