公开(公告)号：US4236194A

公开(公告)日：1980-11-25

申请号：US84414

申请日：1979-10-12

申请人： Raymond M. Norman

发明人： Raymond M. Norman

IPC分类号： B60Q1/08 ,  F21V33/00 ,  B60Q1/12 ,  B60Q3/00

CPC分类号： B60Q1/08

摘要： A dampened light apparatus for a pivotal boom on a back hoe or the like including a support for securement to a boom. A well housing is mounted on the support, and a crank arm is pivotally mounted on the support. An electric light is mounted on the crank arm together with an electric current conducting means carried by the light, the arm and the support. A dampening blade is connected to and extending radially from the arm and extending into a liquid in the well housing for movement therein so that when pivotal movement of the boom causes relative pivotal movement between the support and the arm the blade moving through the liquid dampens the pivotal movement of the arm and the light thereon.

摘要翻译： 用于在后锄等上的枢转吊杆的阻尼光装置，包括用于固定到起重臂的支撑件。 井壳安装在支撑件上，曲柄臂枢转地安装在支撑件上。 电灯与由灯，臂和支撑件承载的电流传导装置一起安装在曲柄臂上。 阻尼叶片连接到臂并径向延伸并延伸到井壳体中的液体中以在其中运动，使得当悬臂的枢转运动在支撑件和臂之间产生相对的枢转运动时，移动通过液体的叶片将使 臂和其上的光的枢转运动。