(19)
(11)EP 1 953 421 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.03.2011 Bulletin 2011/13

(43)Date of publication A2:
06.08.2008 Bulletin 2008/32

(21)Application number: 08150785.7

(22)Date of filing:  29.01.2008
(51)International Patent Classification (IPC): 
F16H 48/06(2006.01)
F16H 48/02(2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30)Priority: 30.01.2007 JP 2007019678
30.01.2007 JP 2007019679

(71)Applicant: JTEKT CORPORATION
Chuo-ku Osaka-shi Osaka 542-8502 (JP)

(72)Inventors:
  • Noriyuki, Fujii
    Osaka-shi, Osaka 542-8502 (JP)
  • Makoto, Nishiji
    Osaka-shi, Osaka 542-8502 (JP)

(74)Representative: TBK-Patent 
Bavariaring 4-6
80336 München
80336 München (DE)

  


(54)Hybrid differential gear device, differential case therefor and assembling method of differential case


(57) It is an object of the present invention to provide a hybrid differential gear device achieving the small and light devices as a whole and easy assembling of a differential case.
A hybrid differential gear device has a first differential gear mechanism 2 and a second differential gear mechanism 3. The first differential gear mechanism 2 has a plurality of planetary gears 5 as an input element, a sun gear 6 engaging with the plural planetary gears 5 as a first output element, and an internal gear engaging with the plural planetary gears 5 as a second output element, The second differential gear mechanism 3 has side gears 14R, 14L connected respectively to a right and a left front tire wheel, pinion gears 12, 13 engaging with the side gears 14R, 14L, and a pinion gear shaft 15 supporting rotatably the pinion gears 12, 13. The pinion gear shaft 15 is supported non-rotatably and movably to a direction of a rotational axis of a differential case 4.







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