Low-noise chain having bushings and rollers with matching curved surfaces to keep fluid disposed therebetween

A low-noise chain member comprises a bushing, a roller and oil grooves in which a wedge or squeeze effect of a lubricating oil, which is interposed between the bushing and the roller, is effective in reducing noise. The oil grooves are provided on at least one of the outer surface of the bushing and...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA KOJI, ANDO TAKAHISA, OTANI TOMOFUMI, TAKAHASHI TOSHIO, MAEDA SACHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVINGPURPOSES BLASTING CHAINS CONVEYING ENGINEERING ELEMENTS AND UNITS FITTINGS PREDOMINANTLY USED THEREFOR GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HEATING LIGHTING MECHANICAL ENGINEERING PACKING PERFORMING OPERATIONS PNEUMATIC TUBE CONVEYORS SHOP CONVEYOR SYSTEMS STORING THERMAL INSULATION IN GENERAL TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A low-noise chain member comprises a bushing, a roller and oil grooves in which a wedge or squeeze effect of a lubricating oil, which is interposed between the bushing and the roller, is effective in reducing noise. The oil grooves are provided on at least one of the outer surface of the bushing and the inner face of the roller. The inner face of the roller is formed with a curved surface so as to conform to the contour of a curved outer surface of the bushing. A clearance between the inner face of the roller and the outer surface of the bushing is not widened around both ends of the roller. Only a small amount of the lubricating oil between the roller and the bushing escapes to the outside, of the roller and bushing, so that a fluid lubricating state between the bushing and the roller is maintained.