| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear housing whose inner pressure is kept at an atmospheric pressure regardless of its simple structure. SOLUTION: A gear housing into which grease is injected is equipped with: a gear housing main body 1 with a space into which the grease G is injected; a reservoir 2 which is formed at a lateral side of the gear housing main body 1 and has a vertically long space; two paths which are formed at upper and lower positions of the lateral side of the gear housing main body 1 and connect each of spaces of the gear housing main body 1 and reservoir 2 and further in which when the grease has been injected into the gear housing main body, the grease flows in a lower path 3a and the grease or air flows in an upper path 3b; and a vent hole 4 which is formed at an upper portion than the two paths in the reservoir to communicate with outside air. COPYRIGHT: (C)2007,JPO&INPIT
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