ROTATION SUPPORTING STRUCTURE AND CLOCK EQUIPPED WITH THE SAME

PROBLEM TO BE SOLVED: To provide a rotation supporting structure minimizing the temperature dependance of lubricating operation of fluid lubricant in a bearing, and to provide a clock equipped therewith. SOLUTION: The rotation supporting structure 1 for the clock includes an inside structure 2, and...

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Bibliographische Detailangaben
Hauptverfasser:	TSUNEYOSHI JUN, AMANO YUKI, SHIGESHIRO KOICHIRO, MUGISHIMA KATSUYA
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOROLOGY LIGHTING MECHANICAL ENGINEERING MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a rotation supporting structure minimizing the temperature dependance of lubricating operation of fluid lubricant in a bearing, and to provide a clock equipped therewith. SOLUTION: The rotation supporting structure 1 for the clock includes an inside structure 2, and an outside structure 3 suitable for the outer periphery of the inside structure 2 rotatably relative to the inside structure 2. It is lubricated by the fluid lubricant L stored in a clearance G between the inside structure 2 and the outside structure 3. The outside structure 3 is formed of a material M2 having a negative coefficient of thermal expansion, while the inside structure 2 is formed of a material M1 having a coefficient of thermal expansion opposite to that for the outside structure 3. COPYRIGHT: (C)2011,JPO&INPIT