发明名称 Cutting devices
摘要 A cutting device includes a cutting unit having a rotary blade, a table for placing a workpiece thereon, and a support device vertically movably supporting the cutting unit relative to the table. The cutting unit includes a blade case. The blade case covers an upper portion of the rotary blade and has a dust discharge member for discharging dust produced at a cutting region. The cutting device further includes a dust guide device disposed on at least one of an upstream side and a downstream side of the dust discharge member with respect to a flow of the dust. A position of at least a part of the dust guide device changes relative to the dust discharge member according to change of the vertical position of the cutting unit.
申请公布号 US9021930(B2) 申请公布日期 2015.05.05
申请号 US201113086951 申请日期 2011.04.14
申请人 Makita Corporation 发明人 Kani Toshiyuki;Yamamura Goh
分类号 B26D1/14;B23D47/00;B27B5/00;B23D45/04;B23D59/00 主分类号 B26D1/14
代理机构 Oliff PLC 代理人 Oliff PLC
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.
地址 Anjo-shi JP