公开(公告)号：US08122609B2

公开(公告)日：2012-02-28

申请号：US12807810

申请日：2010-09-14

申请人： Harvey H. Farr ,  William H. Farr

发明人： Harvey H. Farr ,  William H. Farr

IPC分类号： B43L7/12

CPC分类号： B43L7/12 ,  B43L7/14 ,  E04F21/0076 ,  E04F21/26

摘要： A tool for use when laying out lines on stair stringers or roof rafters along which cuts are to be made. The step and rafter tool includes a framing square, an angle bracket and two carriage bolts with washers and wingnuts. Each leg of the framing square has a longitudinal slot which is about 90% of the length of the leg. The angle bracket has two central longitudinal slots in the first flange, each of which is about 40% of the length of the angle bracket. The angle bracket is positioned against the framing square so that two carriage bolts are place within holes formed by the overlapping slots of the bracket and square with washers and wingnuts assembled therein. With the wingnuts loose, the angle bracket can be positioned wherever is desired with respect to the framing square and then the wingnuts are tightened. The second flange of the angle bracket now provides a shoe which can slide on the narrow side of a board to be marked and cut for use as a stair stringer or a roof rafter, and thereby stabilize the framing square in place to act as a marking guide. Various indicia, guide marks and data tables are engraved into the legs of the framing square to aid in set up and marking. The edges of the slots in the framing square also provide useful marking guides which are a known distance from other outer or inner edges of the framing square legs.

摘要翻译： 在沿着这些切割进行切割的楼梯桁条或屋顶椽子上铺设线条时使用的工具。 台阶和椽子工具包括一个框架方形，一个角度支架和两个带垫圈和翼型的托架螺栓。 框架正方形的每条腿都有一个纵向槽，约为腿部长度的90％。 角撑架在第一凸缘中具有两个中心纵向槽，每个中心纵向槽约为角撑架长度的40％。 角支架定位在框架正方形上，使得两个滑架螺栓位于由支架和方形的重叠槽形成的孔内，垫圈和翼型组装在其中。 翼形松散时，角架可以相对于框架方格定位在任何需要的位置，然后翼节被紧固。 角支架的第二凸缘现在提供了一种可在板的窄边上滑动以被标记和切割以用作梯形桁架或屋顶椽子的鞋，从而将框架方形稳定在适当位置以作为标记 指南。 各种标记，引导标记和数据表刻在框架方形的腿部，以帮助设置和标记。 框架方形中的槽的边缘还提供有用的标记引导件，其与框架方形腿的其它外边缘或内边缘是已知的距离。

公开(公告)号：US20110107610A1

公开(公告)日：2011-05-12

申请号：US12807810

申请日：2010-09-14

申请人： Harvey H. Farr ,  William H. Farr

发明人： Harvey H. Farr ,  William H. Farr

IPC分类号： B43L7/10

CPC分类号： B43L7/12 ,  B43L7/14 ,  E04F21/0076 ,  E04F21/26

摘要： A tool for use when laying out lines on stair stringers or roof rafters along which cuts are to be made. The step and rafter tool includes a framing square, an angle bracket and two carriage bolts with washers and wingnuts. Each leg of the framing square has a longitudinal slot which is about 90% of the length of the leg. The angle bracket has two central longitudinal slots in the first flange, each of which is about 40% of the length of the angle bracket. The angle bracket is positioned against the framing square so that two carriage bolts are place within holes formed by the overlapping slots of the bracket and square with washers and wingnuts assembled therein. With the wingnuts loose, the angle bracket can be positioned wherever is desired with respect to the framing square and then the wingnuts are tightened. The second flange of the angle bracket now provides a shoe which can slide on the narrow side of a board to be marked and cut for use as a stair stringer or a roof rafter, and thereby stabilize the framing square in place to act as a marking guide. Various indicia, guide marks and data tables are engraved into the legs of the framing square to aid in set up and marking. The edges of the slots in the framing square also provide useful marking guides which are a known distance from other outer or inner edges of the framing square legs.

摘要翻译： 在沿着这些切割进行切割的楼梯桁条或屋顶椽子上铺设线条时使用的工具。 台阶和椽子工具包括一个框架方形，一个角度支架和两个带垫圈和翼型的托架螺栓。 框架正方形的每条腿都有一个纵向槽，约为腿部长度的90％。 角撑架在第一凸缘中具有两个中心纵向槽，每个中心纵向槽约为角撑架长度的40％。 角支架定位在框架正方形上，使得两个滑架螺栓位于由支架和方形的重叠槽形成的孔内，垫圈和翼型组装在其中。 翼形松散时，角架可以相对于框架方格定位在任何需要的位置，然后翼节被紧固。 角支架的第二凸缘现在提供了一种可在板的窄边上滑动以被标记和切割以用作梯形桁架或屋顶椽子的鞋，从而将框架方形稳定在适当位置以作为标记 指南。 各种标记，引导标记和数据表刻在框架方形的腿部，以帮助设置和标记。 框架方形中的槽的边缘还提供有用的标记引导件，其与框架方形腿的其它外边缘或内边缘是已知的距离。