Reflection device for roadside marking
OwnerJohn Bjorlundinventor
Life of this patent
Estimating the term…
Abstract
A reflective roadside marking post, where the reflector is protected from dirt by a tubular means projecting in front of the reflector. The tubular means is by partition walls divided into a number of axial channels or cells and the reflector is visible through said cells. In order to make the reflector reachable for cleaning purposes it and/or the tubular means is/are moveable in relation to the post.
Claims9
In a reflective road marker of the type including a reflector supported at a specified height above the road, said reflector being removably carried by tubular means on a post beside the road, the improvement comprising:
- said reflector being supported by said post for reflection of light, directed thereat, generally toward a first direction, being held behind said tubular means within said post and being removable from said post;
- said tubular means being insertable into said post through an opening therein to a position where it at least substantially is received within said post, and including a plurality of channels, each channel
- (1) having its length in said first direction;
- (2) being closed at one end by said reflector and coacting therewith to define a stationary air cushion in front of said reflector;
- (3) having its length at least one-half the maximum internal transverse dimension;
- and
- (4) having a length-to-transverse-dimension ratio such that a visually roadside marking reflection effect of the incident light from the headlights of vehicles is provided at different positions on the road.
A reflection device according to claim 8, wherein said tubular means is insertable through a side opening in the post to a position where it at least substantially is received within the post and that the reflector is held behind the tubular means within the post and is removeable from the post.
In a reflection device for roadside marking of the kind comprising a reflector supported at a certain height above the road by a post placed beside the roadside and tubular means projecting in front of the reflector, said tubular means being intended to provide a stationary air cushion in front of the reflector and being removable from the reflector for making the latter accessible for cleaning, the improvement comprising:
- said post being provided with guide means for facilitating insertion of said tubular means into said post,
- whereby when said tubular means is inserted into said post, it lies substantially within the limiting surfaces of said post or its imaginary extensions.
Dependencies are inferred from the claim text.