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    • 2. 发明公开
    • Scroll saw
    • 滚动锯
    • EP0792711A3
    • 1999-11-24
    • EP97301357.6
    • 1997-02-28
    • Black & Decker Inc.
    • O'Banion, Michael L.Shadeck, Louis M.Sommerville, Thomas R.Welsh, Robert P.
    • B23D49/00
    • B23D51/125Y10T83/705Y10T83/7055Y10T83/9481
    • A scroll saw (1) including an adjustable tensioning mechanism is disclosed. The saw (1) includes a housing (5) having an inner surface and a pivoting arm (7) having a rearward end disposed within an opening in the housing (5). A first blade clamp (30) is disposed at the forward end of the pivoting arm (7) and secures the upper end of a saw blade (27). The lower end of the saw blade (27) is secured in a second blade clamp (30) disposed at the forward end of a lower arm (9). A wedge (41) is disposed within the housinc (5), in contact with the inner surface of the housing (5). The wedge (41) is also disposed in contact with and translatable along a surface of the pivoting arm (7). A rod (43) is linked to the wedge (41) at one end and extends through the pivoting arm (7). The rod (43) includes an upwardly turned arm (43a). A cam (45) having a spiral track (45b) is rotatably mounted at the front of the pivoting arm (7) with the upwardly turned arm (43a) disposed in the track (45b). Rotation of the cam (45) causes the track (45b) to move along the upwardly turned arm (43a), further causing the rod (43) and wedge (41) to move forwardly, with the contact between the wedge (41) and the inner surface causing the wedge (41) and the rearward end of the pivoting arm (7) to pivot downwardly, and the forward end of the pivoting arm (7) to pivot upwardly to increase the tension of the blade (27).
    • 4. 发明公开
    • Scroll saw
    • Dekupiersäge
    • EP0792711A2
    • 1997-09-03
    • EP97301357.6
    • 1997-02-28
    • Black & Decker Inc.
    • O'Banion, Michael L.Shadeck, Louis M.Sommerville, Thomas R.Welsh, Robert P.
    • B23D49/00
    • B23D51/125Y10T83/705Y10T83/7055Y10T83/9481
    • A scroll saw (1) including an adjustable tensioning mechanism is disclosed. The saw (1) includes a housing (5) having an inner surface and a pivoting arm (7) having a rearward end disposed within an opening in the housing (5). A first blade clamp (30) is disposed at the forward end of the pivoting arm (7) and secures the upper end of a saw blade (27). The lower end of the saw blade (27) is secured in a second blade clamp (30) disposed at the forward end of a lower arm (9). A wedge (41) is disposed within the housinc (5), in contact with the inner surface of the housing (5). The wedge (41) is also disposed in contact with and translatable along a surface of the pivoting arm (7). A rod (43) is linked to the wedge (41) at one end and extends through the pivoting arm (7). The rod (43) includes an upwardly turned arm (43a). A cam (45) having a spiral track (45b) is rotatably mounted at the front of the pivoting arm (7) with the upwardly turned arm (43a) disposed in the track (45b). Rotation of the cam (45) causes the track (45b) to move along the upwardly turned arm (43a), further causing the rod (43) and wedge (41) to move forwardly, with the contact between the wedge (41) and the inner surface causing the wedge (41) and the rearward end of the pivoting arm (7) to pivot downwardly, and the forward end of the pivoting arm (7) to pivot upwardly to increase the tension of the blade (27).
    • 公开了一种包括可调张紧机构的蜗形锯(1)。 锯(1)包括具有内表面的壳体(5)和枢转臂(7),其具有设置在壳体(5)内的开口内的后端。 第一刀片夹(30)设置在枢转臂(7)的前端并固定锯片(27)的上端。 锯片(27)的下端固定在设置在下臂(9)的前端的第二刀片夹(30)中。 楔形物(41)设置在壳体(5)内,与壳体(5)的内表面接触。 楔形物(41)也设置成与枢转臂(7)的表面接触并可平移。 杆(43)在一端与楔形件(41)连接并延伸穿过枢转臂(7)。 杆(43)包括向上转动的臂(43a)。 具有螺旋形轨道(45b)的凸轮(45)可旋转地安装在枢转臂(7)的前部,同时向上转动的臂(43a)设置在轨道(45b)中。 凸轮(45)的旋转使得轨道(45b)沿着向上转动的臂(43a)移动,进一步导致杆(43)和楔形件(41)向前移动,楔形件(41)和 所述内表面使所述楔块(41)和所述枢转臂(7)的后端向下枢转,并且所述枢转臂(7)的前端向上枢转以增加所述叶片(27)的张力。