Apparatus for sorting and feeding bead supporters for an electrode gun of a cathode-ray tube

• US 5,492,226 A
• Filed: 12/24/1992
• Issued: 02/20/1996
• Est. Priority Date: 12/24/1991
• Status: Expired due to Fees

• Current Assignee: Goldstar Jewellery LLC
• Original Assignee: Goldstar Jewellery LLC
• Inventors: Hwang, Cheol H., Son, Ki B.
• Primary Examiner(s): O'Shea, Sandra L.
• Assistant Examiner(s): Patel, Vip
• Application Number:
  US07/996,603
• Time in Patent Office: 1,153 Days
• Field of Search: 313/270, 313/417, 313/446, 209/697, 198/390, 198/391
• US Class Current: 209/695
• CPC Class Codes: B65G 47/1421 Vibratory movement
• CPC Class Codes: H01J 29/485 Construction of the gun or of parts thereof H01J29/481, H01J29/482, H01J29/484 and H01J29/487 take precedence
• CPC Class Codes: H01J 9/46 Machines having sequentially arranged operating stations

Abstract

This invention relates to a bead supporter for supporting a cathode assembly of an electron gun for a cathode-ray tube and fixing the assembly to a bead glass. This invention also relates to an apparatus for sorting and transporting the bead supporters in a properly oriented posture to an assembly line. The bead supporter includes a plurality of positioning projections formed on the lower side of its central portion, and cut-out portions formed in its upper edge portion opposite to the projections to permit the center of gravity of the supporter to vary depending upon its normal and reverse positions. The apparatus includes a feeding surface and a horizontal sorting surface for transferring the bead supporters. The width of the horizontal sorting surface is less than the width of the feeding surface such that each supporter having cut-out portions formed therein falls from the sorting surface when reversely positioned. The apparatus also includes a vertical sorting wall formed perpendicularly to the feeding and horizontal sorting surfaces for guiding the supporters.

Claims

1. An apparatus for sorting bead supporters for an electron gun of a cathode-ray tube, comprising:

a vertical sorting wall;

a horizontal feeding surface formed perpendicularly to said sorting wall for transferring said bead supporters; and

a horizontal sorting surface having a width less than a width of the horizontal feeding surface and formed perpendicularly to said sorting wall for sorting said bead supporters, the width of said horizontal feeding surface being such that bead supporters oriented in an incorrect orientation will fall from the sorting surface;

wherein said bead supporter comprises;

a semi-circular central portion for supporting the cathode assembly;

a plurality of positioning projections formed on a lower inward side of the semi-circular central portion of the bead supporter; and

a pair of extended portions projecting from said semi-circular central portion, parts of each of the pair of extended portions projecting to positions outward of the semi-circular central portion, for fixing a cathode assembly to opposing bead glasses;

wherein a cut-out portion is formed in an upper edge of at least one extended portion of the bead supporter, said cut-out portion causing said bead supporter to fall from said supporting surface if said bead supporter is incorrectly oriented.

2. The bead supporter of claim 1, wherein cut-out portions are formed in both said extended portions of the bead supporter.

3. The bead supporter of claim 2, wherein said cut-out portions extend on both sides of a vertical plane containing a center of gravity of said bead supporter.