Patent ID: 7418786
Filing Date: 2008-09-02
Classification: G01C

Abstract:
1. A marking device comprising: a support mounted inside a housing; a light source unit holder swingably suspended by said support through a gimbal mechanism; and a light source unit mounted on this light source unit holder so as to diffuse a light flux only in a single direction to radiate a line of light; said support being coupled with said housing through dampers in an upper portion and lower portion of the support and wherein the dampers are formed of an impact absorber, such that when an outside impact is applied to the housing, said dampers absorb impact energy so as to prevent the impact force from being transmitted to said support, said dampers having a hole in an axial direction thereof and a small diameter portion in a middle portion thereof in the axial direction; and a mounting shaft positioned in the hole and coupled with the housing or the support at one end of the mounting shaft, the damper being coupled with said support, and wherein said small diameter portion is fit in with a portion substantially integrated with said support or housing so that the upper portion and the lower portion of the support are coupled with the housing through the dampers.