公开(公告)号：US06003422A

公开(公告)日：1999-12-21

申请号：US967279

申请日：1997-11-07

申请人： James R. Holston

发明人： James R. Holston

IPC分类号： B23D61/12 ,  B27B33/06

CPC分类号： B23D61/121 ,  Y10T83/9317 ,  Y10T83/9346 ,  Y10T83/936

摘要： A variable pitch band saw is provided which has a toothed edge comprising a plurality of recurrent groups of teeth. Each group includes an unset leading tooth and a plurality of teeth that are alternately set laterally to opposite sides of the saw. Each tooth has a cutting edge disposed in a predetermined cutting plane and an accumulated pitch distance between it and the next preceding saw tooth having a cutting edge coplanar with said predetermined plane. The size of gullet area of each tooth is made directly proportional to the accumulated pitch distance of that tooth so that the size of the gullet areas are the same for all teeth having the same accumulated pitch. Each of the tooth groups may include teeth of varying height and degrees of lateral set, some of the teeth of each group having a different pitch, measured from the tip of one of said teeth to the tip of a tooth adjacent the one, to avoid uniform tooth spacing between all the teeth to the group.

摘要翻译： 提供了一种可变节距带锯，其具有包括多个齿轮组的齿形边缘。 每个组包括一个未设定的引导齿和多个齿，其横向地交替设置在锯的相对侧上。 每个齿具有设置在预定切割平面中的切割边缘，并且其间具有与所述预定平面共面的切割边缘的下一个先前锯齿之间的累积间距距离。 每个齿的齿槽面积的大小直接与该牙齿的累积节距成正比，使得对于具有相同累积节距的所有齿，齿槽区域的尺寸相同。 每个齿组可以包括具有不同高度和横向组合度的齿，每组的一些齿具有不同的节距，从所述齿中的一个的尖端到与之相邻的齿的尖端测量，以避免 所有牙齿之间的牙齿间距均匀均匀。

公开(公告)号：US5410935A

公开(公告)日：1995-05-02

申请号：US144349

申请日：1993-11-01

申请人： James R. Holston ,  William B. Korb

发明人： James R. Holston ,  William B. Korb

IPC分类号： B23D61/12 ,  B27B33/06

CPC分类号： B23D61/121 ,  Y10T83/9319 ,  Y10T83/9358

摘要： An improved saw blade includes groups of saw teeth disposed along the cutting edge of the blade. Each group of teeth includes, in relation to the cutting direction of the blade, an unset leading tooth followed by two pairs of trailing teeth alternately set in opposite lateral directions outwardly of the centerline of the blade. The first pair of trailing teeth are generally of the same height as the leading tooth and the second pair of trailing teeth are shorter and have a substantially wider set than the first pair. The pair of trailing teeth that are shorter and wider set are disposed in consecutively and interposed relation between the first pair of trailing teeth. The set distance of the first pair of trailing teeth is approximately 50% of the set distance of the second pair of trailing teeth.

摘要翻译： 改进的锯片包括沿叶片的切割边缘设置的锯齿组。 每个组齿相对于叶片的切割方向包括一个未定位的前齿，随后是两对后齿，其在叶片的中心线的外侧交替地设置在相对的横向方向上。 第一对后齿通常具有与引导齿相同的高度，并且第二对后齿较短并且具有比第一对大得多的设定。 一对较短和较宽的后齿配置在第一对后齿之间的连续和中间关系中。 第一对后齿的设定距离约为第二对后齿的设定距离的50％。

公开(公告)号：US5803678A

公开(公告)日：1998-09-08

申请号：US492801

申请日：1995-06-20

申请人： William B. Korb ,  James R. Holston ,  Stephen A. Hampton

发明人： William B. Korb ,  James R. Holston ,  Stephen A. Hampton

IPC分类号： B23B51/04 ,  B23B51/05

CPC分类号： B23B51/0426 ,  B23B2251/14 ,  Y10T408/8957 ,  Y10T408/896 ,  Y10T408/906

摘要： An improved hole saw for cutting holes having a cylindrical shape that includes, along its cutting edge, a plurality of repetitive groups of saw teeth having at least four radially displaced trailing teeth. The displacement of each trailing tooth is such that it has a substantially greater displacement than for any other tooth of said group preceding said trailing tooth. The displacement of each tooth being such that the cutting edge thereof is characterized as being movable along a cutting path different from the cutting paths of the other teeth of the group as the hole saw is rotated whereby each tooth cuts chips of uniform size. Each group of teeth may include a raker tooth having no substantial displacement with respect to the side surfaces of the hole saw. The raker tooth may be the same height or of greater height than the trailing teeth.

摘要翻译： 一种用于具有圆柱形形状的切割孔的改进的孔锯，其沿其切割边缘包括具有至少四个径向移位的后齿的多个重复组的锯齿。 每个拖尾齿的位移使得其具有比所述拖尾齿之前的所述组的任何其他齿大得多的位移。 每个齿的位移使得其切割刃的特征在于当孔锯旋转时沿着与组中的另一个齿的切割路径不同的切割路径可移动，由此每个齿切割均匀尺寸的切屑。 每组齿可以包括相对于孔锯的侧表面没有实质位移的耙齿。 耙齿可以与后牙相同的高度或更大的高度。