Impact resistant compact disc tray structure

• US 5,727,680 A
• Filed: 12/19/1995
• Issued: 03/17/1998
• Est. Priority Date: 09/11/1995
• Status: Expired due to Fees

• Current Assignee: Tak Lun Liu
• Original Assignee: Tak Lun Liu
• Inventors: Liu, Tak Lun
• Primary Examiner(s): Foster, Jimmy G.
• Application Number:
  US08/574,944
• Time in Patent Office: 819 Days
• Field of Search: 206/309, 206/310, 206/312, 206/313, 206/308.1, 206/493
• US Class Current: 206/308.1
• CPC Class Codes: G11B 33/0427 comprising centre hole locking means

Abstract

A tray for holding a compact disc wherein the tray comprises a plate having a central region, an annular array of fingers in the central region for receiving the opening of the compact disc and an impact resistance shield within and below the annular array of fingers for receiving impact forces directed toward the fingers and for distributing the forces to the plate so as to protect the fingers from breakage upon impact. The impact resistance shield comprises a central body portion or core and a plurality of radially outwardly extending arms or tentacles located between adjacent fingers and extending into the plate. During impact the central body portion or core radiates the energy of impact directly outwardly and acts as a buffer for the fingers. The central core has a concave outwardly directed face positioned below the tips of the fingers which allows room for the fingers moving downwardly without hinderance for easy removal of the compact disc. The central core of the shield means can be located above the surface of the plate to allow room for the central region of another tray to fit in and to facilitate stacking of a number of trays.

Claims

1. A tray for holding a circular recording media compact disc having a substantially circular central opening, said tray comprising:

a) a plate having a central region;

b) an annular array of fingers in said central region for receiving the disc central opening, said annular array of fingers including a plurality of shoulders arranged in an annular array having a diameter, each of said fingers including an extension disposed substantially parallel to said plate and bendable toward said plate and said extension having a surface portion extending substantially parallel to and facing away from said plate;

c) impact resisting shield means in said central region and in the region of said annular array of fingers for receiving impact forces directed toward said fingers and for distributing said forces to said plate so as to protect said fingers from breakage upon impact, said shield means being spaced from said finger extensions so that said finger extensions can be pushed in a direction toward said plate without interference by said shield means during removal of a compact disc from said tray, said shield means comprising a central body portion and a plurality of radially outwardly extending arm portions located between adjacent fingers and joining said central body portion to said plate, each of said arm portions having a shoulder thereby providing a plurality of shoulders arranged in an annular array having a diameter;

d) each of said radially extending arm portions of said shield means having a surface portion extending substantially parallel to said plate and said surface portions of said radially extending arm portions of said shield means being located a short distance closer to said tray than said surface portions of said finger extensions; and

e) the diameter of said annular array of shoulders of said fingers being greater than the diameter of said annular array of shoulders of said arm portions of said shield means so that the disc central opening is contacted by said annular array of shoulders of said fingers and not by the arm portions of said shield means during receiving and removal of a compact disc.

2. The tray according to claim 1, wherein said fingers extend radially inwardly and terminate in an annular array of finger tips and wherein said central body of said shield means is located inwardly of said finger tips.

3. The tray according to claim 1, wherein said plate has a thickness and wherein said central body of said shield means has a thickness substantially equal to the thickness of said plate.

4. The tray according to claim 1, wherein said central body of said shield means has a concave surface facing in a direction away from said plate.

5. The tray according to claim 1, wherein said shield means is formed integrally with said plate.

6. The tray according to claim 1, in combination with a base and a cover hinged to said base to provide a package, said tray being received in said base.

7. The tray according to claim 1, wherein said finger extensions are disposed substantially in a plane and said central body portion of said impact resisting shield means is located between said plane and said plate.

8. A tray for holding a circular recording media compact disc having a substantially circular central opening, said tray comprising:

a) a plate having a substantially planar surface and a central region therein;

b) an annular array of fingers in said central region for receiving the disc central opening, each of said fingers having a first portion extending from said surface of said plate and a second portion extending in a plane substantially parallel to said surface of said plate, said first portion having a surface extending substantially parallel to and facing away from said plate, each of said finger second portions extending radially inwardly and terminating in a finger tip, said first and second portions of each of said fingers defining a shoulder which contacts the disc central opening in a snug fitting relation when the disc is held on said tray, there being a plurality of shoulders of said fingers arranged in an annular array having a diameter, and said second portions of each of said fingers being movable toward said plate to facilitate removal of the disc from the tray; and

c) impact resisting shield means having a central body portion located in the region of said fingers and a plurality of radially outwardly extending arm portions located between adjacent fingers and joining said central body portion to said plate for receiving and distributing impact force in a manner protecting said fingers from breakage upon impact, each of said arm portions having a surface extending substantially parallel to said plate, said shield means being spaced from said finger second portions so that said finger second portions can be pushed in a direction toward said plate without interference by said shield means during removal of the compact disc from said tray;

d) said surface of each of said radially extending arm portions of said shield means being located a short distance closer to said tray surface than said surface portions of said fingers;

e) each of said radially outwardly extending arm portions of said shield means having a first branch extending outwardly from said central portion and a second branch extending upwardly from said plate, said first and second branches meeting in a shoulder thereby providing a plurality of shoulders arranged in an annular array having a diameter; and

f) the diameter of said annular array of shoulders of said fingers being greater than the diameter of said annular array of shoulders of said arm portions of said shield means so that the disc central opening is contacted by said shoulders of said fingers and not by the arm portions of said shield means during holding and removal of a compact disc.

9. The tray according to claim 8, wherein said plate has a thickness and wherein said body of said shield means has a thickness substantially equal to the thickness of said plate.

10. The tray according to claim 8, wherein said central body of said shield means has a concave surface facing away from said plate.

11. The tray according to claim 10, wherein each of said radially outwardly extending portions of said shield means has a branch extending from said concave surface and upwardly inclined relative to said surface of said plate.

12. The tray according to claim 11, wherein said upwardly inclined branch of each of said radially outwardly extending portions of said shield means has an outer surface disposed substantially parallel to said plate surface.

13. The tray according to claim 8, wherein said central portion of said shield means is in the shape of a disc.

14. The tray according to claim 8, wherein said first portions of said fingers and said shield means define an open region to receive an annular array of fingers of another tray so that said trays can be stacked together.

15. The tray according to claim 8, in combination with a base and a cover hinged to said base to provide a package, said tray being received in said base.

16. The tray according to claim 8, wherein said central body portion of said impact resisting shield means is located between said plate and said plane in which the second portion of each of said fingers extends.

17. A tray for holding a circular recording media compact disc having a substantially circular central opening, said tray comprising:

a) a plate having a central region;

b) an annular array of fingers in said central region for receiving the disc central opening, said annular array of fingers including a plurality of shoulders arranged in an annular array having a diameter, each of said fingers including an extension disposed substantially parallel to said plate and bendable toward said plate; and

c) impact resisting shield means in said central region and in the region of said annular array of fingers for receiving impact forces directed toward said fingers and for distributing said forces to said plate so as to protect said fingers from breakage upon impact, said shield means comprising a central body portion and a plurality of radially outwardly extending arm portions located between adjacent fingers and joining said central body portion to said plate, each of said arm portions having a shoulder thereby providing a plurality of shoulders arranged in an annular array of having a diameter; and

d) the diameter of said annular array of shoulders of said fingers being greater than the diameter of said arm portions of said shield means so that the disc central opening is contacted by said annular array of shoulders of said fingers and not by the arm portions of said shield means during receiving and removal of a compact disc.