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公开(公告)号：US5946985A
公开(公告)日：1999-09-07
申请号：US932645
申请日：1997-09-17
CPC分类号： B23D61/021 , B23D61/04 , B23D61/121 , B23D61/14 , B23D65/02 , Y10T83/04 , Y10T83/9319 , Y10T83/9326 , Y10T83/936 , Y10T83/9362
摘要： A saw blade has a plurality of teeth with each tooth formed by a beveled gullet forming a trailing face, a beveled gullet forming a leading face and a planar surface forming a curved cutting face. The gullets forming the trailing face and the leading face are beveled in opposite directions. The planar surface is generally parallel to the beveled trailing face. The unique tooth profile provides a saw tooth having a positive rake angle to significantly improve the strength of the tooth. The method of manufacturing of the unique tooth profile begins by orienting a saw blade blank about three axes and performing a first grinding operation which forms every other tooth gullet and every other planar surface. The partially formed blank is then oriented about two of the three axes in an opposite direction and a second grinding operation is performed. The second grinding operation grinds the remaining gullets and planar surfaces. The unique tooth profile of the present invention is applicable to jigsaw blades, linear edge saw blades and circular saw blades as well as the various types of bi-metal saw blades.
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公开(公告)号：US5884547A
公开(公告)日：1999-03-23
申请号：US805000
申请日：1997-02-25
IPC分类号： B27B33/02 , B23D45/00 , B23D49/00 , B23D61/02 , B23D61/04 , B23D61/12 , B23D61/14 , B23D65/02 , B27B33/06 , B27B33/12
CPC分类号： B23D49/00 , B23D45/00 , B23D61/021 , B23D61/04 , B23D61/121 , B23D61/14 , B23D65/02 , Y10T83/9319 , Y10T83/9326 , Y10T83/936 , Y10T83/9362
摘要： A saw blade has a plurality of teeth with each tooth formed by a beveled leading face, a beveled trailing face and a chamfered surface located on the trailing face of each tooth. The trailing and leading faces are beveled in opposite directions in alternate order throughout the saw blade prior to the forming of the chamfered surface. The beveled leading face of each tooth intersects the chamfered surface on the trailing face of each tooth to form a curved cutting edge having a negative rake angle. The beveled faces are manufactured by first forming a plurality of rough-formed gullets. The rough-formed gullets are then finished-formed into beveled gullets by a cold-forming operation prior to the grinding of the chamfered surface to form the curved cutting face of the tooth.
摘要翻译： 锯片具有多个齿，每个齿由倾斜的前表面，斜面的后表面和位于每个齿的后表面上的倒角表面形成。 在形成倒角表面之前，后缘和前导面在整个锯片上以相反方向以相反的方向倾斜。 每个齿的倾斜的前导面与每个齿的后表面上的倒角表面相交，以形成具有负前角的弯曲切削刃。 通过首先形成多个粗糙的齿槽来制造斜面。 然后，在研磨倒角表面之前，通过冷成型操作将粗糙的齿槽精加工成倾斜的齿槽，以形成牙齿的弯曲切割面。
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公开(公告)号：US06427573B1
公开(公告)日：2002-08-06
申请号：US08938875
申请日：1997-09-26
IPC分类号： B27B3302
CPC分类号： B23D61/021 , B23D61/04 , B23D61/121 , B23D61/14 , B23D65/02 , Y10T83/04 , Y10T83/9319 , Y10T83/9326 , Y10T83/936 , Y10T83/9362
摘要： A saw blade has a plurality of teeth with each tooth formed by a beveled gullet forming a trailing face, a beveled gullet forming a leading face and a planar surface forming a curved cutting face. The gullets forming the trailing face and the leading face are beveled in opposite directions. The planar surface is generally parallel to the beveled trailing face. The unique tooth profile provides a saw tooth having a positive rake angle to significantly improve the strength of the tooth. The method of manufacturing of the unique tooth profile begins by orienting a saw blade blank about three axes and performing a first grinding operation which forms every other tooth gullet and every other planar surface. The partially formed blank is then oriented about two of the three axes in an opposite direction and a second grinding operation is performed. The second grinding operation grinds the remaining gullets and planar surfaces. The unique tooth profile of the present invention is applicable to jigsaw blades, linear edge saw blades and circular saw blades as well as the various types of bi-metal saw blades.
摘要翻译： 锯片具有多个齿，每个齿由形成后表面的斜齿槽形成，形成前表面的斜齿槽和形成弯曲切割面的平面表面。 形成后表面和前表面的凹槽在相反方向上倾斜。 平坦表面通常平行于倾斜的后表面。 独特的齿廓提供了具有正前角的锯齿，以显着提高牙齿的强度。 制造独特牙齿轮廓的方法是通过使锯片坯料绕三个轴线定向并执行形成每隔一个齿槽和每隔一个平面的第一研磨操作开始的。 然后将部分形成的坯料沿着相反的方向围绕三个轴线中的两个定向，并且执行第二研磨操作。 第二次研磨操作研磨剩余的孔和平面。 本发明的独特的齿廓可应用于拼花刀，线性边锯片和圆锯片以及各种类型的双金属锯片。
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公开(公告)号：US5775181A
公开(公告)日：1998-07-07
申请号：US730425
申请日：1996-10-10
IPC分类号： B27B33/02 , B23D45/00 , B23D49/00 , B23D61/02 , B23D61/04 , B23D61/12 , B23D61/14 , B23D65/02 , B27B33/06
CPC分类号： B23D49/00 , B23D45/00 , B23D61/021 , B23D61/04 , B23D61/121 , B23D61/14 , B23D65/02 , Y10T83/9319 , Y10T83/9326 , Y10T83/936 , Y10T83/9362
摘要： A saw blade has a plurality of teeth with each tooth formed by a beveled leading face, a beveled trailing face and a chamfered surface located on the trailing face of each tooth. The trailing and leading faces are beveled in opposite directions in alternate order throughout the saw blade prior to the forming of the chamfered surface. The beveled leading face of each tooth intersects the chamfered surface on the trailing face of each tooth to form a curved cutting edge having a negative rake angle. The beveled faces are manufactured by first forming a plurality of rough-formed gullets. The rough-formed gullets are then finished-formed into beveled gullets by a cold-forming operation prior to the grinding of the chamfered surface to form the curved cutting face of the tooth.
摘要翻译： 锯片具有多个齿，每个齿由倾斜的前表面，斜面的后表面和位于每个齿的后表面上的倒角表面形成。 在形成倒角表面之前，后缘和前导面在整个锯片上以相反方向以相反的方向倾斜。 每个齿的倾斜的前导面与每个齿的后表面上的倒角表面相交，以形成具有负前角的弯曲切削刃。 通过首先形成多个粗糙的齿槽来制造斜面。 然后，在研磨倒角表面之前，通过冷成型操作将粗糙的齿槽成形为倒角齿槽，以形成牙齿的弯曲切割面。
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公开(公告)号：US5063670A
公开(公告)日：1991-11-12
申请号：US592706
申请日：1990-10-03
摘要： A cutter tool is constructed to be portable and maneuverable so that it can be used at an accident scene to extricate a victim that is trapped in place by the foot pedal and/or steering wheel of a vehicle by cutting the same to free the trapped victim.
摘要翻译： 刀具被构造成便携式和可机动的，以便可以在事故现场使用，以便通过切割车辆将车辆脚踏板和/或车辆的方向盘捕获到被捕获的被害人以释放被困的受害者 。
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