Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Takaaki Kawashima

Shinichi Nomura

Masayuki Maki

Masabumi Nishigaya

Junya Abe

Takashi Iwama

Hirotaka Shiratori

Yuuji Esaki

A planetary carrier includes a plurality of pinion gears, a plurality of pinion shafts that are each inserted in the corresponding pinion gear, a first supporting plate that supports one end of each of the pinion shafts, a second supporting plate that supports the other end of each of the pinion shafts, and a plurality of bridge plates, one end of each of which is joined to the first supporting plate via a welding portion and the other end of each of which is joined to the second supporting plate via a welding portion and which connects the first and second supporting plates.

Planetary carrier and method for manufacturing the same

A cylinder member of an automatic transmission that includes an outer peripheral introducing portion having a shape that is able to be formed by ironing without forming and trimming of a flange portion which was conventionally required for forming an outer peripheral introducing portion. Therefore, steps required for forming the flange portion are omitted, and the number of steps for manufacturing the cylinder member is reduced. Without using a large-scale press machine such as a progressive press and a transfer press, the cylinder member is manufactured by a smaller-sized press machine, thereby reducing equipment investment required for manufacturing the cylinder member.

Cylinder member of automatic transmission and manufacturing method thereof

A carrier is implemented which is capable of reducing the number of parts and the number of bonding steps. The carrier includes a pair of holding members that hold from both sides in an axial direction L a pinion shaft supporting a pinion gear. A first holding member as one of the pair of holding members includes a coupling portion extending in the axial direction L 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 Rof the outer peripheral gear in the second holding member.

Carrier

Growing community of inventors

Anjo, Japan

Takaaki Kawashima