Patent ID: 7493689

Claim:
A head assembly for a chip mounter comprising: a housing having a plurality of spindle receiving holes; a plurality of nozzle spindles configured in the plurality of spindle receiving holes for vertical and rotational movement, each nozzle spindle of the plurality including a nozzle for picking up and mounting electronic components; a selection member configured to select at least one nozzle spindle of the plurality of nozzle spindles; a horizontal driver configured to horizontally move the selection member above the plurality of nozzle spindles; and an elevating driver configured to vertically move the selection member for raising and lowering the at least one nozzle spindle, wherein the selection member comprises: a combining portion that is rotatably coupled with the horizontal driver and vertically movable relative to operation of the elevating driver; and a spindle contacting portion projecting from the combining portion, the spindle contacting portion configured to select one or more of the plurality of nozzle spindles.