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A speed reduction mechanism (30) includes a sun gear (31) that consists of a spur gear; three planetary gears (32); a fixed gear (33); and a movable gear (34). The movable gear (34) has internal teeth (34a) on an inner circumferential face side and has external teeth (34b) on an outer circumferentia...

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Bibliographic Details
Main Authors MASAKI, YUTAKA, UENO, HARUHIKO, SAITO, SHOICHI
Format Patent
LanguageEnglish
French
German
Published 03.01.2007
Subjects
BLASTING
DIAGNOSIS
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
LIGHTING
MECHANICAL ENGINEERING
MEDICAL OR VETERINARY SCIENCE
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SURGERY
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:A speed reduction mechanism (30) includes a sun gear (31) that consists of a spur gear; three planetary gears (32); a fixed gear (33); and a movable gear (34). The movable gear (34) has internal teeth (34a) on an inner circumferential face side and has external teeth (34b) on an outer circumferential face side. The number of internal teeth (33a) of the fixed gear (33) differs from the number of internal teeth (34a) of the movable gear (34) by a predetermined number. The fixed gear (33) functions as the fixed gear (33) when an engaging portion (51a) is engaged with an engaging groove (33b). External teeth (32a) of the planetary gear (32) engages with external teeth (31a) of the sun gear (31) and the internal gears (33a, 34a) of the fixed gear (33) and the movable gear (34).
Bibliography:Application Number: EP20050719839