Sketchup is a 3D data without the possibility to export as a vector.
You can get a free plug-ins, however.

Referring: Sketchup SKP Convert Files to DXF or STL

http://www.guitar-list.com/download-software/convert-sketchup-skp-files-dxf-or-stl

How To:

Download ruby first.
More from the bottom screen from Attachment, Latest version skp_to_dxf.rb button.

WIN is C: \ program files \ google \ google sketchup \ plugins
The MAC / Library / Application Support / Google SketchUp / SketchUp / Plugins

Rb files will be moved to, sketchup started.

Appropriate experiment.
Suitable material to stick, dxf models selected in the menu you want to convert to "Tools" from the "Export to DXF ot STL" button.

When asked a scale, select Millimeters ordinary Japanese specifications.

DXF output option if the following four.

· DXF polyface mesh (recommended).
Standard terms with. This selection must be set nothing in particular.

· DXF polylines
Polyline output models only. No plane, in the form of wire frame.

· DXF triangular mesh
All aspects of the output side of the square in the face of the triangular diagonal pull.

· DXF lines
All output lines.

AutoCAD2009 work test. Opened properly.
However,

Sorry Material can not be exported together.