主权项 |
1. A cutting device comprising:
a cutting unit having a rotary blade; a table for placing a workpiece thereon; a support device vertically movably supporting the cutting unit relative to the table, the cutting unit including:
a blade case covering an upper portion of the rotary blade and having a dust discharge member; anda movable cover covering a lower portion of the rotary blade and opened and closed in response to the vertical movement of the cutting unit, a dust guide device including a dust guide member covering an edge portion of the rotary blade exposed as the movable cover is opened, the dust guide member serving to guide dust produced at a cutting region toward the dust discharge member of the blade case; and a dust guide moving device moving the dust guide member in a direction of extending downward from a lower portion of the blade case as the cutting unit moves downward, wherein:
the dust guide member is vertically pivotally connected to the support device about a first pivotal axis,the cutting unit is vertically pivotally connected to the support device about a second pivotal axis,the first pivotal axis is located at a position lower than the second pivotal axis,the dust guide member includes a first end portion pivotally connected to the support device about the first pivotal axis and a second end portion opposite to the first end portion, andthe second end portion is coupled to the blade case via a guide mechanism that includes a guide projection and a guide surface engaging the guide projection, the guide projection being provided on one of the second end portion and the blade case, and the guide surface being provided on the other of the second end portion and the blade case. |