Speed change mechanism with load bearing saddle
AssigneeDana Corporation
InventorJames A. Charles
Life of this patent
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Abstract
A speed change mechanism of the type having a gear change yoke actuated by a travelling ball nut on a screw includes a load-bearing saddle slidably mounted over the nut. The saddle provides for avoidance of radial loads on the nut and screw via the yoke, while allowing for transmission of axial loads between said members. The yoke moves between first and second limits of movement and contains a provision for relief of axial loads to the nut and screw whenever the yoke is positioned at either of said limits.
Claims7
In a speed change mechanism having a gear change yoke actuable by a nut screw assembly, said nut being axially movable along said screw, said mechanism including a housing having internal walls;
- an improvement comprising a load bearing saddle mounted on the nut and engageable with said yoke, said saddle further comprising a radial load-bearing surface, wherein said surface is in sliding engagement with at least one of said internal walls of said housing.
Dependencies are inferred from the claim text.