Spool assembly

• US 4,387,863 A
• Filed: 12/17/1981
• Issued: 06/14/1983
• Est. Priority Date: 12/17/1981
• Status: Expired due to Term

• Current Assignee: AT&T, Inc.
• Original Assignee: Western Electric Co., Inc. (Nokia Corporation)
• Inventors: Edmonston, Donald R., Weaver, Frederick R.
• Primary Examiner(s): Christian, Leonard D.
• Application Number:
  US06/331,715
• Time in Patent Office: 544 Days
• Field of Search: 242/116, 242/117, 242/118, 242/118.4, 242/118.7, 242/118.8, 242/71.8, 242/77, 242/118.41, 242/125, 242/125.1, 242/125.2, 242/125.3
• US Class Current: 242/118.4
• CPC Class Codes: B65H 2701/5136 Moulded plastic elements
• CPC Class Codes: B65H 75/14 with two end flanges
• CPC Class Codes: B65H 75/28 Arrangements for positively securing ends of material
• CPC Class Codes: G02B 6/4457 Bobbins; Reels

Abstract

A spool for receiving windings of elongated material, such as connectorized lightguide cable, is made of compressive and resilient material and has a flange on each end of a hub portion. Each flange has inner and outer rims of differing diameter and a clearance therebetween for forming a channel to hold a connector that terminates an end of the cable. The channel communicates with the surface of the hub via a flared groove for passing the cable ends from hub to channel. The spool is assembled by intermeshing two identical segments.

Claims

1. A spool adapted to hold one or more windings of an elongated material having at least one end terminated with a connector, said spool comprising:

a circular hub having a first circular flange at one end thereof and a second circular flange at the other end thereof, each of said flanges comprising first and second peripheral rims, one of said rims being of greater diameter than the other rim, means forming a channel between said rims comprising a region of lesser diameter than said rims; and

the rim closer to the hub in each of said flanges having a flared groove therein extending from said channel to a point tangent to the hub, the groove in the rim of said first flange extending in a direction opposite to the groove in the rim of said second flange.

2. A spool as claimed in claim 1, wherein said spool comprises first and second substantially identical segments of semi-rigid material, said segments being formed to mate with each other to form a unitary spool, each of said segments having a semicircular hub and a semicircular flange at each end thereof.

3. A spool as claimed in claim 1, wherein the width of the channel in each of said flanges is slightly less than the maximum outside dimension of the connector on the end of the elongated material said spool is adapted to hold.

4. A spool as claimed in claim 1, wherein each of said flared grooves is tapered from a maximum depth at its channel end to a minimum depth at the point of tangency with the hub.

5. A spool as claimed in claim 1, wherein the peripheral rims adjacent said hub are of greater diameter than the peripheral rims separated therefrom by the channel.

6. A spool as claimed in claim 2, wherein said semi-rigid material is expanded polystyrene.

7. A spool assembly as claimed in claim 2, wherein each of said segments includes a semicircular opening extending therethrough, the locus of the radius of said opening forming the locus of the radii of said hub and said flanges, longitudinally extending rib members on either side of said opening, and longitudinally extending slots adjacent said rib members.

8. A spool assembly as claimed in claim 7, wherein the rib on one side of said opening is closer to the said opening than its adjacent slot, and the slot on the other side of said opening is closer to said opening than its adjacent rib, whereby the slots in one of said segments are adapted to receive the ribs in the other of said segments when said segments are mated to form a spool.