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Title:
DIFFERENTIAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/188672
Kind Code:
A1
Abstract:
A differential device in which the differential case is formed divided into a pair of half-cases, wherein the differential case (C) is formed by a pair of half-cases (C1, C2) which are joined to each other in a state in which the opening end portions thereof are facing each other in the axial direction. An inner circumferential surface (C2i) of at least one half-case (C2) is formed by lathe machining in which the rotational axis (CL) of the object being machined is aligned with the rotational axis (first axis X1) of the differential case. The one half-case (C2) has a wall section (W2) for which the position of an outside surface (ws) is determined such that an oil hole (61) running from the inside to the outside of the one half-case (C2) is formed by the lathe machining. Thus, an oil hole in the half-case can be formed without additional machining by utilizing lathe machining on an inner circumferential surface of the one half-case, and lubricating oil inside the differential case can be discharged smoothly to the outside of the differential case from the oil hole.

Inventors:
ODA Hirohisa (39-5, Aza Daizen, Ueta-cho, Toyohashi-sh, Aichi 60, 〒4418560, JP)
Application Number:
JP2019/011738
Publication Date:
October 03, 2019
Filing Date:
March 20, 2019
Export Citation:
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Assignee:
MUSASHI SEIMITSU INDUSTRY CO., LTD. (39-5, Aza Daizen Ueta-cho, Toyohashi-sh, Aichi 60, 〒4418560, JP)
International Classes:
F16H48/40; F16H48/08; F16H57/04
Foreign References:
JP2002147580A2002-05-22
JP2007113747A2007-05-10
US4959043A1990-09-25
JP2010007699A2010-01-14
Attorney, Agent or Firm:
OCHIAI & CO. (TO Building, 6-3 Taito 2-chome, Taito-k, Tokyo 16, 〒1100016, JP)
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