公开(公告)号：USD328751S

公开(公告)日：1992-08-18

申请号：US763754

申请日：1991-09-20

申请人： Stephen P. Bohrer

设计人： Stephen P. Bohrer

公开(公告)号：US5605085A

公开(公告)日：1997-02-25

申请号：US229630

申请日：1994-04-19

申请人： Stephen P. Bohrer

发明人： Stephen P. Bohrer

IPC分类号： B23D59/00 ,  B23Q1/48 ,  B26D7/06 ,  B27B13/04

CPC分类号： B23D59/00 ,  B23Q1/4804 ,  Y10T83/727 ,  Y10T83/728 ,  Y10T83/747

摘要： A circle cutting device for selectively rotatably retaining a workpiece in a jigsaw permits a user of the circle cutting device to cut accurate circles with the jigsaw. The circle cutting device includes an elongated track secured to the jigsaw, and further includes a housing having an upper portion slidably adjustably attached to the elongated track for location at a preselected position and a lower portion with a centrally located opening therein. A pin is positioned in the centrally located opening of the lower portion of the housing and extends a predetermined distance from the opening for selectively engaging a workpiece and maintaining the workpiece in a preselected position in relation to the jigsaw, thereby providing a pivot point for rotatably retaining the workpiece in the jigsaw so as to permit the user of the jigsaw to accurately cut circles from the workpiece. A spring is located within the housing between the upper shoulder portion of the housing and the thumbscrew, biasing the pin downwardly onto the workpiece and a pin is located in the lower portion of the housing for securing the pin within the housing at a predetermined distance.

摘要翻译： 用于将工件选择性地旋转地保持在拼图中的圆切割装置允许圆切割装置的使用者用拼图来切割准确的圆。 圆切割装置包括固定到拼图的细长轨道，并且还包括壳体，该壳体具有可滑动地可调节地附接到细长轨道的上部，用于位于预选位置处以及在其中具有居中定位的开口的下部。 销定位在壳体下部的中心位置的开口中，并且从开口延伸预定距离，用于选择性地接合工件并将工件保持在相对于拼图的预选位置，从而提供可旋转的枢轴点 将工件保持在拼图中，以允许拼图的使用者从工件上精确地切割圆圈。 弹簧位于壳体的上肩部和指旋螺钉之间的壳体内，将销向下偏压到工件上，并且销位于壳体的下部中，以将销固定在壳体内预定的距离。