| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive force distribution device which can secure a press-in area of a second roller with respect to a first roller even if positions of the first roller and the second roller in axial directions are displaced from each other.SOLUTION: A drive force distribution device comprises: a first disc member which is arranged at an external periphery of an input shaft concentrically therewith, and is a disc member having a large outside diameter larger than a diameter of the input shaft; a first roller which is a cylindrical member whose an axial length is formed longer than an axial length of the first disc member, and in which the first disc member is inserted into and fixed to an internal periphery of the first roller concentrically therewith in an axial middle-degree position, an outside diameter of an axial one end is formed larger than an outside diameter of an axial other end, and inside diameters of axial both ends are formed in the same length; a second disc member which is arranged at an external periphery of an output shaft concentrically therewith, and a disc member whose outside diameter is larger than a diameter of the output shaft; and a second roller which is a cylindrical member whose axial length is formed longer than an axial length of the second disc member, and in which the second disc member is inserted into and fixed to an internal periphery of the second roller concentrically therewith in an axial middle-degree position, an outside diameter of an axial one end is formed larger than an outside diameter of an axial other end, and inside diameters of axial both ends are formed in the same length. |
