Patent ID: 8171822
Filing Date: 2012-05-08
Classification: F16H,Y10T

Abstract:
1. A reducer comprising: a casing enabling a tight seal between an inside and an outside of the reducer; a lubricant contained in the casing, the lubricant being at least partly flowable during operation of the reducer; a communicating part formed in the casing or in a component integrally formed with the casing, for communicating the inside and the outside of the reducer; and a blocking member arranged in the communicating part for blocking the communicating part, wherein the blocking member comprises a sheet member having oil repellency, air permeability, and non-permeability to oil, wherein: the communicating part comprises an engaging member having a hollow part and set in a through hole provided in the casing of the reducer; the engaging member protrudes further inwards from an inner-side end face of the through hole to have a protruded portion; and the blocking member is arranged at the protruded portion.