The present invention has been made in an effort to provide a hollow drive shaft and a method for manufacturing the same in which the concentrated load to a weak point which may be occurred by differences of sectional thicknesses and outer diameters is dispersed so that the strength may be uniform throughout the whole length. A hollow drive shaft includes: one or more small-diameter portion having a hollow shape; and a large-diameter portion which is disposed in the vicinity of the small-diameter portion and has an outer diameter relatively greater than the small-diameter portion. A sectional thickness of the large-diameter portion is less than a sectional thickness of the small-diameter portion, and a first sectional portion from an outer surface to a point corresponding to 35% to 60% of a sectional thickness of the large-diameter portion is carburized to have a first hardness.
HOLLOW DRIVE SHAFT AND METHOD FOR MANUFACTURING SAME
HOHLANTRIEBSWELLE UND VERFAHREN ZUR HERSTELLUNG DAVON
ARBRE D'ENTRAÎNEMENT CREUX ET SON PROCÉDÉ DE FABRICATION
2021-05-26
Patent
Electronic Resource
English
Hollow drive shaft for vehicle and manufacturing meathod of the same
European Patent Office | 2016
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