发明授权
US6019148A Door machine 失效
门机

Door machine
摘要:
A door machine is provided for the production of a raised-panel door product of the type having a central panel framed in a sash of left and right stiles and upper and lower rails. In this type of raised panel door, the stiles and rails are joined by four butt joints to form the sash which features four inner edges that join the four edges of the central panel in edge joints. Preferably, the rails extend between and space apart the stiles and as such, these rails have opposite "butt" edges. The door machine includes a stand and a table on the stand formed with openings. The table and stand support a power and drive assembly which includes at least driven three spindles. Each spindle has a head for mounting a knife, and this head protrudes through an opening in the table as slightly above a plane of the table. The knives include a panel knife and an associated fence for shaping all four edges of the central panel, a stile knife and associated fence for shaping each inner edge of both stiles and both rails, and a coping knife and associated fence for shaping the butt edges. Altogether, the spindle heads and fences are spatially distributed around the table to avoid interference with one another for the shaping work to be performed by each spindle.
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