Search International and National Patent Collections

1. (WO2013146486) LUBRICATION STRUCTURE FOR DIFFERENTIAL DEVICE

Pub. No.:    WO/2013/146486    International Application No.:    PCT/JP2013/057915
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Wed Mar 20 00:59:59 CET 2013
IPC: F16H 57/04
F16H 48/08
Applicants: HONDA MOTOR CO.,LTD.
本田技研工業株式会社
Inventors: YOSHIZAWA, Masahiro
吉澤 勝裕
FUSHIMI, Koichi
伏見 宏一
FURUTA, Takeo
古田 武男
SASAKI, Yuuto
佐々木 祐人
MAEDA, Eri
前田 恵里
KURACHI, Shinobu
倉地 忍
KOGA, Yuji
古賀 勇司
Title: LUBRICATION STRUCTURE FOR DIFFERENTIAL DEVICE
Abstract:
Provided is a lubrication structure capable of allowing lubricating oil to efficiently flow from the opening end of the inboard section of a differential case into a helical groove. The opening end (42a) of an inboard section (42) is provided with: an end surface section (43) which comprises a surface located farthest from the center of a differential device (1) in the axial direction and perpendicular to the axial direction; a shelf section (44) which is located adjacent to the end surface section (43) in the circumferential direction of the opening end (42a) so as to be closer to the center than the end surface section (43) in the axial direction; and a sloped surface-shaped tapered section (45) which is formed so as to continue to the inner diameter side of the shelf section (44) of the opening end (42a) and which is sloped toward the inner diameter side of the opening end (42a) so as to approach the center. Lubricating oil supplied to the opening end (42a) of the inboard section (42) flows to the tapered section (45) through the shelf section (44) and flows from the tapered section (45) into a helical groove (80) formed in the inner peripheral surface (42c) of the inboard section (42).