Title:
SHAFT COUPLING AND IN-WHEEL MOTOR SYSTEM USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/007709
Kind Code:
A1
Abstract:
A shaft coupling capable of always providing stable power transmission characteristics
by a system in which power is transmitted through rolling elements disposed between
two axes positioned parallel with each other at the intersections of guide grooves
crossing perpendicularly to each other. Guide grooves (5, 6) in the opposed surfaces
of both plates (1, 2) are so formed that these two grooves in proximity with to each
other in each of the plates can be extended in directions at an angle of 45°
relative to reference lines X connecting the mid points of the intersections
and the center of the plate. The elongated holes (7) of a cage (4) are formed to be
extended along a straightline connecting the intersections of two guide grooves
in proximity to each other. Accordingly, the position of two sets of rolling element
guide mechanisms (8) sharing one elongated hole (7) among those rolling element
guide mechanisms (8) in which one elongated hole (7) and the pair of guide grooves
(5, 6) crossing the elongated hole are used as a set is differentiated from the
rotating direction of the cage. Since the relative rotation of the cage (4) to
both plates (1, 2) is prevented from occurring when the power is transmitted between
these both plates (1, 2), the power transmission characteristics can be stabilized.
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Inventors:
TASHIRO KATSUMI (JP)
UTSUNOMIYA SATOSHI (JP)
OKAMOTO DAIJI (JP)
UTSUNOMIYA SATOSHI (JP)
OKAMOTO DAIJI (JP)
Application Number:
PCT/JP2006/313677
Publication Date:
January 18, 2007
Filing Date:
July 10, 2006
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
NTN TOYO BEARING CO LTD (JP)
TASHIRO KATSUMI (JP)
UTSUNOMIYA SATOSHI (JP)
OKAMOTO DAIJI (JP)
NTN TOYO BEARING CO LTD (JP)
TASHIRO KATSUMI (JP)
UTSUNOMIYA SATOSHI (JP)
OKAMOTO DAIJI (JP)
International Classes:
F16D3/04; B60K7/00
Domestic Patent References:
| WO2005050042A1 | 2005-06-02 |
Foreign References:
| JP2004245409A | 2004-09-02 | |||
| JPH02113123A | 1990-04-25 | |||
| US2343244A | 1944-03-07 |
Other References:
See also references of EP 1906039A4
Attorney, Agent or Firm:
KAMADA, Bunji et al. (Nipponbashi 1-chome Chuo-k, Osaka-shi Osaka 73, JP)
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