公开(公告)号：US20030088988A1

公开(公告)日：2003-05-15

申请号：US10010356

申请日：2001-11-13

Applicant: S-B Power Tool Company

Inventor： Brad M. Baber ,  Wolfgang Hirschburger ,  Ed Ennis

IPC: B26B007/00

CPC classification number: B27G19/04 ,  B23D47/126 ,  B25F3/00

Abstract: A tool guard attachment for a rotary hand tool of the type which has a housing with a nose portion from which an output shaft protrudes and which typically has a mechanism for holding tool bits or implements is disclosed. The tool guard attachment, which mounts to the nose portion of the rotary hand tool, has a guard housing with an enlarged guard portion at the outer end thereof which provides a shield or guard for a flat circular tool implement that is mounted on an arbor shaft assembly that in turn is connected by a U-joint to a drive shaft assembly at an acute angle relative to the arbor shaft assembly. The drive shaft assembly engages a driver nut or the like that is mounted to the output shaft of the rotary hand tool. The angle between the drive shaft and the arbor shaft is offset about 10 to 30null so that the rotary hand tool itself does not interfere with the cutting blade engaging a work surface at a perpendicular angle during operation. A lower guard that is retractable in the enlarged guard portion of the housing is normally biased away from the enlarged guard portion for protecting a user from injury.

Abstract translation: 公开了一种用于旋转式手动工具的工具保护附件，其具有带有鼻部的壳体，输出轴从该外壳突出，并且通常具有用于保持工具钻头或工具的机构。 安装在旋转式手动工具的鼻部的工具防护件附件具有防护壳体，在其外端具有放大的防护部分，其提供用于安装在心轴上的平坦圆形工具工具的屏蔽或防护装置 组件又通过U形接头相对于心轴组件以锐角连接到驱动轴组件。 驱动轴组件接合安装到旋转手动工具的输出轴上的驱动螺母等。 驱动轴和心轴之间的角度偏离约10°至30°，使得旋转手形工具本身在操作期间不会以与垂直角度接合的工作表面干涉切割刀片。 在外壳的扩大的防护部分中可伸缩的下护罩通常偏离放大的防护部分，以防止使用者受伤。