公开(公告)号：US06810596B2

公开(公告)日：2004-11-02

申请号：US10075927

申请日：2002-02-13

申请人： George C H Fung ,  Patrick C K Kwok ,  Vincent P. Cooper ,  Leo Driessen ,  Chan Ka Shing

发明人： George C H Fung ,  Patrick C K Kwok ,  Vincent P. Cooper ,  Leo Driessen ,  Chan Ka Shing

IPC分类号： B23B4900

CPC分类号： B25H1/0085

摘要： A power tool includes a leveling device which includes a rotatable member which seeks an equilibrium position which corresponds to a level position. A rotating device includes a member which enables passage of a beam. An electrical circuit which includes an emitting device, a receiving device and an indicating device is electrically coupled such that upon activation, the emitting device emits a beam which passes through the beam passing member. The beam is received by the receiving device which, in turn, activates the indicator device. The indicator is generally a light emitting device which has a varying brightness so that the user may view the indicator from all sides of the power tool.

摘要翻译： 一种电动工具包括一个调平装置，该调平装置包括一个可调节构件，该可旋转构件寻找一个对应于水平位置的平衡位置。 旋转装置包括能够使梁通过的构件。 包括发射装置，接收装置和指示装置的电路电耦合，使得在激活时，发射装置发射穿过光束通过部件的光束。 光束被接收装置接收，接收装置又激活指示装置。 指示器通常是具有变化的亮度的发光装置，使得用户可以从电动工具的所有侧面观察指示器。