To provide a differential limiting device enabling a reduction in size.
This differential limiting device is formed so that helical gear teeth are formed on the surfaces of pinion gears 30, a ring gear 40, and a sun gear 50, and the ring gear 40 is disposed on the same axis as that of the sun gear 50 rotatably relative to each other. The helical teeth of the pinion gears 30 mesh with the helical gear teeth of both the sun gear 50 and the ring gear 40. A carrier 20 is disposed on the same axis as that of the sun gear 50 rotatably relative to the sun gear 50 and the ring gear 40, and rotatably supports the pinion gears 30. The ring gear 40 is so formed that the carrier 20 and the ring gear 50 are held by first side wall part 45 and a second side wall part 46 extended to the radial inner side. Thus, a thrust reaction generating for developing differential limiting function can be held without installing a housing for covering the ring gear 40 from the outside.
Toshio Morita
Takao Matsuyama
Tadashi Muto
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