Fiber tray insertion apparatus and method

• US 6,275,641 B1
• Filed: 08/31/1999
• Issued: 08/14/2001
• Est. Priority Date: 08/31/1999
• Status: Expired due to Term

• Current Assignee: RPX Corporation
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Daoud, Bassel Hage
• Primary Examiner(s): Lee, John D.
• Assistant Examiner(s): RAHLL, JERRY T
• Application Number:
  US09/386,765
• Time in Patent Office: 714 Days
• Field of Search: 385/135
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4455 characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding

Abstract

An optical fiber organizer includes a plurality of optical fiber trays. Each tray has a top side for holding a fiber. Each tray has a hinge portion. The tray carrier has a plurality of sockets. Each socket is capable of receiving the hinge portion of a respective tray. Each tray has a first position on the tray carrier. The trays are stacked parallel to each other when the trays are in the first position. Each socket has an associated first detent, including a first boss below the socket, for maintaining its respective tray in the first position. Each socket has a second-position detent, including a second boss above the socket, for maintaining its respective tray in a second position about 90 degrees from the first position. The top side of one of the trays is exposed when at least one of the trays is in the second position. The hinge portion of the tray has a hole capable of receiving either the first boss or the second boss. The hinge portion of the tray has a pair of ramps adjacent the hole, for guiding either the first or second boss of the tray carrier to the hole. The tray carrier includes: a first stop for preventing the tray from rotating beyond the first position, and a second stop for preventing the tray from rotating beyond the second position.

Claims

1. An optical fiber organizer comprising:

at least one optical fiber tray having a top side for holding a fiber, the tray having a pivot pin;

a tray carrier having at least one socket, the socket capable of having the pivot pin of the tray inserted therein and allowing the tray to rotate therein, the tray carrier having a respective protrusion proximate to the socket, the protrusion positioned so that the tray acts as a lever while being inserted in the socket, and the protrusion is a fulcrum of the lever, to forcibly insert the pivot pin of the tray into the socket by applying a force on the tray.

2. The optical fiber organizer of claim 1, wherein the tray acts as a class 2 lever.

3. The optical fiber organizer of claim 1, wherein a moment arm between the protrusion and the pivot pin is substantially less than a moment arm between the protrusion and a portion of the tray on which the force is applied.

4. The optical fiber organizer of claim 3, wherein a moment arm between the protrusion and the pivot pin is substantially less than a moment arm between the protrusion and a location where a hinge portion that includes the pivot pin is connected to the tray.

5. The optical fiber organizer of claim 1, wherein the socket is hook-shaped.

6. The optical fiber organizer of claim 1, wherein the socket has a substantially cylindrical sleeve portion, an entrance portion connected to the sleeve portion, and a constriction therebetween, the constriction being smaller than a diameter of the sleeve portion.

7. The optical fiber organizer of claim 1, wherein the protrusion acts as a stop after insertion of the pivot pin in the socket, so as to limit rotation of the tray to a predetermined angle.

8. The optical fiber organizer of claim 7, further comprising a detent that maintains the tray at the predetermined angle.

9. The optical fiber organizer of claim 1, wherein the protrusion has a rounded corner where a hinge portion that includes the pivot pin contacts the protrusion.

10. The optical fiber organizer of claim 1, wherein

the optical fiber organizer comprises a plurality of optical fiber trays, each tray having a top side for holding a fiber, each tray having a pivot pin; and

the tray carrier has a plurality of sockets, each socket capable of having the pivot pin of a respective tray inserted therein and allowing the respective tray to rotate therein, the tray carrier having a respective protrusion proximate to each socket, positioned so that the respective tray being inserted in the socket acts as a lever, and the respective protrusion is a fulcrum of the lever, to forcibly insert the pivot pin of the tray into its respective socket by applying a force on the tray.

11. The optical fiber organizer of claim 10, wherein:

the protrusion of a first one of the sockets acts as a stop after insertion of the pivot pin of a first one of the trays in the first socket, so as to limit rotation of the first tray in a first direction to a predetermined angle, and

the protrusion of a second one of the sockets adjacent the first socket acts as a stop, so as to limit rotation of the first tray in a second direction opposite the first direction.

12. A method for inserting an optical fiber tray into a tray carrier, comprising the steps of:

(a) inserting a pivot pin of the optical fiber tray into an entrance of a socket in the tray carrier;

(b) applying a force on the optical fiber tray, using the tray as a lever and a first protrusion on the tray carrier as a fulcrum of the lever; and

(c) rotating the optical fiber tray till the pivot pin moves from the entrance to a sleeve portion of the socket.

13. The method of claim 12, further comprising the step of stopping the rotating when a hinge portion that includes the pivot pin contacts a second protrusion on the tray carrier.

14. The method of claim 13, further comprising the step of engaging a detent when the hinge portion contacts the second protrusion on the tray carrier.

15. The method of claim 12, further comprising the steps of:

(d) rotating the tray in a direction opposite the direction of rotation in step (c), and

(e) stopping the rotation of step (d) when a hinge portion that includes the pivot pin contacts the first protrusion.

16. The method of claim 15, further comprising engaging a detent when the hinge portion contacts the first protrusion.