POWER TRANSMISSION DEVICE AND WORK VEHICLE PROVIDED WITH POWER TRANSMISSION DEVICE
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United States of America Patent
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app pub date -
Jun 8, 2015
filing date -
Jun 8, 2015
priority date (Note) -
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Abstract
A power transmission device for a work vehicle includes a boss section, a spline shaft, a rotational force transmission section, and a housing. The boss section includes a spline groove on an internal circumferential surface thereof. The spline shaft fits to the spline groove. The rotational force transmission section is coupled to the boss section or the spline shaft. The housing includes an oil sump section retaining lubricating oil. The oil sump section is in communication with a fitting section at which the spline shaft and the spline groove are fitted to each other, an oil inlet path arranged to introduce the lubricating oil into the oil sump section, and an oil drain path arranged to drain lubricating oil retained in the oil sump section, the oil drain path being positioned higher than a lower end of the spline groove.
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