Multiple friction plate brake device in a buggy vehicle

A brake device for a buggy vehicle including a power unit, a propelling shaft connected to an output shaft of the power unit and extending longitudinally of the vehicle, a rear axle extending laterally of the vehicle, a reduction device which connects said propelling shaft and said rear axle to each other to reduce and transmit a power from the propelling shaft to the rear axle, and a pair of left and right rear wheels which each have a lower-pressure tire and which are mounted at opposite ends of said rear axle,

• said brake device comprising a plurality of rotatable friction brake plates which are axially slidably and relatively non-rotatably coupled to the propelling shaft or a transmitting shaft rotated with said propelling shaft, a plurality of stationary friction brake plates alternately superposed with said rotatable friction brake plates, a non-rotatable brake housing which houses said pluralities of the rotatable and stationary friction brake plates therein and which supports said stationary friction brake plates for axial sliding movement and against rotation, a pressure-receiving portion provided in said brake housing to carry one of opposite sides of said pluralities of the rotatable and stationary friction brake plates, and an operating means which is operated by the operation of a brake lever during travelling and which urges the other side of said pluralities of the rotatable and stationary friction brake plates against said pressure receiving portion, wherein
• said brake housing is comprised of a rear housing half seamlessly and integrally formed at a front end of a reduction case which houses said reduction device, and a front housing half separatably bolted to said rear housing half,
• lubricating oil scattered by rotation of a rotary member of said reduction device is stored in a lower portion of said reduction case, and wherein
• a series of upper oil passages for guiding the oil scattered by rotation of said rotary member into said pluralities of rotatable and stationary friction brake plates in said brake housing and a series of lower oil passages for returning the oil from the inside of said brake housing to said reduction case are each formed over said rear housing half and said front housing half.