Patent ID: 6866217

Claim:
An idler mechanism for a magnetic tape device, comprising: a pair of reels; an idler gear swingingly displaced between first and second positions to selectively transmit rotation to one of the pair of reels, the idler gear having a bearing hole; an input gear meshing with the idler gear, the input gear having a center shaft that is rotated forwardly and reversely and a flange projecting from a periphery of the input gear; a swing member arm having one end coupled in a relatively rotatable manner to the center shaft, the swinging member having a shaft integrally formed with the swinging member on the other end and being inserted in a relatively rotatable manner into the bearing hole; wherein the flange comprises a friction force applying face, the friction force applying face being inclined and extending radially outwardly relative to the center shaft, and an outer peripheral portion of the idler gear that is held in a space between the friction force applying face and the swinging member slidably comes into contact with the friction force applying face in a part where the input gear meshes with the idler gear.