This rigged umbrella will look great on your patio. The crank shaft is moveable, and when turning it on the Z axis, the umbrella opens and closes. It does use a total of 48 joints with IK, so consider this if you need it for a game engine.
Two .mb files are included, one with just the umbrella and another with the lighting setup I used to render.
The poly count is for the low version, the high version has 3409 poly/ 3483 verts. There are no texture maps (materials only), but everything is UVd anyway, in case you'd like to use your own textures.
As always, I try to name all nodes in the scene so there will be no confusion about what things are. This umbrella is modeled to real world scale and stands about 180 cm tall (about 6ft). Please see the ReadMe file for an explanation of how the umbrella can be animated.