Patent ID: 8672800
Filing Date: 2014-03-18
Classification: F16H

Abstract:
1. A carrier that is used in a planetary gear mechanism and is fixed so as to rotate together with a rotating shaft, comprising: a pair of holding members that hold from both sides in an axial direction a pinion shaft supporting a pinion gear, wherein a first holding member as one of the pair of holding members includes a coupling portion extending in the axial direction toward a second holding member as the other holding member, the second holding member is a disc-like member, and has an external outer peripheral gear integrally formed in its outer peripheral portion, the coupling portion is bonded to a coupling bonding portion provided on a radially inner side of the outer peripheral gear in the second holding member, the rotating shaft includes a collar-like portion that is extended in a radial direction with respect to an outer peripheral surface of the rotating shaft, the coupling bonding portion includes an insertion opening in which a distal end of the coupling portion is inserted, at least one of the first holding member and the second holding member includes a fitting portion that is fitted on the collar-like portion, and the collar-like portion and the fitting portion are bonded together by welding, and the coupling portion and the insertion opening are bonded together by welding.