Differential planet gear unit

A differential planet gear unit (1), in which a sun gear is engaged with first (5) and second (9) ring gears coaxially aligned through planet gears (7) interposed therebetween, and the tooth number of the first ring gear (5) is different from the tooth number of the second ring gear (9), in which th...

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Bibliographische Detailangaben
1. Verfasser:	HORI, KOUHEI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A differential planet gear unit (1), in which a sun gear is engaged with first (5) and second (9) ring gears coaxially aligned through planet gears (7) interposed therebetween, and the tooth number of the first ring gear (5) is different from the tooth number of the second ring gear (9), in which the first (5) and second (9) ring gears engage with first (7a) and second (8a) portions of each planet gear (7), and the diameters of the addendum circles (5a; 7a) of the teeth of the first ring gear (5) and the first tooth portion of each planet gear (7) are different from those (9a; 8a) of the second ring gear (9) and the second tooth portion of each planet gear (7), respectively, to reduce a difference between an approaching contact length and a receding contact length along a contact action line. The first ring gear (5) and the second tooth portion of each planet gear (7) may be formed with first and second chamfers, respectively, in both sides of addendum of the teeth to reduce the difference between the approaching and receding contact lengths.