DIFFERENTIAL DEVICE
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United States of America Patent
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Issued Date -
Sep 7, 2017
app pub date -
Mar 6, 2017
filing date -
Mar 7, 2016
priority date (Note) -
Published
status (Latency Note)
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Abstract
In a differential device including: a first transmission member having a first axis an eccentric rotating member in which are joined a hollow first output boss and an eccentric shaft portion; a second transmission member rotatably supported on the shaft portion; a third transmission member having a hollow second output boss rotatable around the first axis and facing the second transmission member; a first speed change mechanism between the first and second transmission members; and a second speed change mechanism between the second and third transmission members, one of mating faces of a first hub of a differential case and a first drive shaft fitted and supported in the hub is provided with a helical groove that can draw in lubricating oil within a transmission case. An oil passage communicating the groove with the first speed change mechanism is provided between the differential case and the rotating member.
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