JPS61169602U

JPS61169602U -

Info

Publication number: JPS61169602U
Application number: JP5267285U
Authority: JP
Priority date: 1985-04-08
Filing date: 1985-04-08
Publication date: 1986-10-21

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す断面図、第２図
は同実施例におけるブリーザ部分の拡大断面図、
第３図は本考案の他の実施例を示す第１図相当図
、第４図は従来例を示すホイール部の部分断面図
である。１……アクスルシヤフト、２……自在継手、３
……ホイール部シヤフト、４……スピンドル、５
……ホイールハブ、ａ……内側軸受、ｃ……ナツ
クル、６……オイルシール、４４，４５……通気
路の一端が開口するスピンドルの段面、８……通
気路、９……ブリーザ、９２ａ……通気孔。 FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a breather portion in the same embodiment,
FIG. 3 is a view corresponding to FIG. 1 showing another embodiment of the present invention, and FIG. 4 is a partial sectional view of a wheel portion showing a conventional example. 1...Axle shaft, 2...Universal joint, 3
...Wheel part shaft, 4...Spindle, 5
...Wheel hub, a...Inner bearing, c...Knuckle, 6...Oil seal, 44, 45...Spindle step surface with one end of the ventilation path open, 8...Airflow path, 9...Breather, 92a...Vent hole.

Claims

[Scope of utility model registration request]

A cylindrical spindle is fitted onto the wheel portion shaft connected to the axle shaft via a universal joint, and a wheel hub is rotatably fitted onto the spindle via a pair of axial bearings, and
In a vehicle wheel portion, between the wheel hub and the spindle, an oil seal for preventing leakage of lubricating oil in the wheel hub is provided in a part of the two bearings further inside the inner bearing located inside the vehicle body. A step surface facing into the wheel hub is formed between the oil seal mounting portion and the inner bearing mounting portion on the outer circumferential surface of the spindle, and one end opens laterally at the step surface and communicates with the inside of the wheel hub. The spindle is provided with a ventilation passage whose other end is open on the outer peripheral surface of the spindle and communicates with the outside of the wheel hub, and a breather having a ventilation hole is attached to the opening part of the ventilation passage on the outer peripheral surface of the spindle. A ventilation structure for a vehicle wheel portion, which is characterized by: