Patent ID: 7442144

Claim:
A slide-proof structure between an outer wall of a planet gear and a planet frame of a differential mechanism comprising: a left half shaft engaged to a left gear; a right half shaft engaged to a right gear; at least one planet gear installed between the left gear and the right gear; a planet frame installed at outer sides of the left half shaft and the right half shaft; the planet frame being formed by two pieces which includes a left sub-frame and a right sub-frame; a slide proof device installed at an upper outer wall of the planet gear and located between the left sub-frame and the right sub-frame of the planet frame; and an elastic body installed at an outer side of the slide proof device; the elastic body resisting against the slide proof device; a limiting element for confining the elastic body; and a washer placed between the limiting element and the elastic body so that the elastic body give a pressure to the slide proof device.