Structure of signboard

• US 6,305,109 B1
• Filed: 12/09/1999
• Issued: 10/23/2001
• Est. Priority Date: 12/09/1999
• Status: Expired due to Fees

• Current Assignee: Chi-Huang Lee
• Original Assignee: Chi-Huang Lee
• Inventors: Lee, Chi-Huang
• Primary Examiner(s): Silbermann, Joanne
• Application Number:
  US09/457,071
• Time in Patent Office: 684 Days
• Field of Search: 405/46, 406/17, 406/05, 362/31, 160/135
• US Class Current: 40/546
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0083 Details of electrical connections of light sources to drivers, circuit boards, or the like
• CPC Class Codes: G02B 6/0091 of the light source relative to the light guide G02B6/0021 takes precedence

Abstract

A signboard, which includes a rail, the rail having a longitudinally extended bottom opening, two parallel flanges longitudinally downwardly extended at two opposite sides of the bottom opening, at least one longitudinal coupling groove on the periphery thereof, and two longitudinal mounting grooves bilaterally disposed on the inside; a LED circuit board mounted in the longitudinal mounting grooves inside the rail, the LED circuit board having a plurality of light emitting diodes at a bottom side thereof; a light conducting board mounted in the bottom opening on the rail and fixedly connected between the parallel flanges, the light conducting board having a design; two end caps respectively covered on two distal ends of said rail; and a plurality of mounting members respectively fastened to the rail for positioning, said mounting members each having at least one coupling rib respectively coupled to the at least one longitudinal coupling groove on the rail.

Claims

1. A signboard comprising:

a longitudinally extended rail formed in one-piece formation, said rail having (a) a tubular contour wherein a cavity extends longitudinally therethrough, (b) an opening formed through a wall thereof and extending between opposing longitudinal ends of said rail, said opening being in open communication with said cavity, (c) a pair of parallel longitudinally extended flanges respectively disposed on opposing sides of said opening and extending from said wall, (d) a pair of longitudinally extended mounting grooves respectively formed on opposing wall surfaces internal to said cavity, and (e) a plurality of coupling grooves formed in angularly spaced relationship in an outer surface of said rail, one of said coupling grooves being located in diametrically opposed relationship with respect to said opening;

a circuit board mounted in said mounting grooves within said cavity and carrying a plurality of light emitting diodes arranged in a plurality of rows, said plurality of light emitting diodes extending toward said opening;

a light conducting board carrying indicia being disposed in said opening in said rail for transmission of light from said plurality of light emitting diodes, said light conducting board being affixed to said pair of flanges, said light conducting board having an opaque rear side;

a pair of end caps mounted to said longitudinal ends of said rail; and

,

a plurality of mounting members coupled to said rail for securing said rail to a base surface, each of said mounting members having a plurality of coupling ribs respectively engaged within a corresponding one of said coupling grooves.

2. The signboard as recited in claim 1, wherein said plurality of light emitting diodes include light emitting diodes of different colors.