US 6,206,557 B1 · Traffic sign with vertically movable light source

Abstract

A traffic sign for use in a paved road has a housing with an open upper end. A holder is vertically movably received in the housing. A light emitting unit is installed in the holder to move therewith. A transparent plate is mounted on the holder to move therewith. The transparent plate permits a light from the light emitting unit to transmit therethrough. A space is defined between a bottom of the housing and a lower end of the holder to permit the vertical movement of the holder in the housing. An elastic support ring has an inner wall fixed to an outer surface of the holder and an outer wall fixed to an inner surface of the housing. Projections are formed on the elastic support ring. Each projection projects upward beyond the transparent plate. Recesses are provided by the elastic support ring. Each recess is defined between the projections, so that the light from the light emitting unit is viewed through the transparent plate and each of the recesses.

Claims19

Dependent claims

A traffic sign comprising:

a housing having an open upper end;
a holder vertically movably received in said housing;
a light emitting unit installed in said holder to move therewith;
a transparent plate mounted on said holder to move therewith, said transparent plate permitting a light from said light emitting unit to transmit therethrough;
a space defined between a bottom of said housing and a lower end of said holder to permit the vertical movement of said holder in said housing;
an elastic support ring having an inner wall fixed to an outer surface of said holder and an outer wall fixed to an inner surface of said housing;
projections formed on said elastic support ring, each projection projecting upward beyond said transparent plate;
and
recesses provided by said elastic support ring, each recess being defined between said projections, so that the light from said light emitting unit is viewed through said transparent plate and each of said recesses.

6 more elements

Dependencies are inferred from the claim text.

Traffic sign with vertically movable light source

Life of this patent

Traffic sign with vertically movable light source

Life of this patent

Abstract

Claims19