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US 2022/0089403 A1Published application
Boltless reel with paperboard drum and molded flanges
AssigneeSonoco Development, Inc.
InventorHarvey Charles Echols, JR.
Life of this patent
Estimating the term…
Abstract
A reel for carrying cable, wire or other wound materials is provided. The reel comprises a paperboard drum and molded flanges. The drum forms a friction fit with a hub located on each flange and forms an adhesive bond at an annular groove defined by each flange. The friction fit and the adhesive bond secure the flange to the drum sufficiently to eliminate the need for bolts or other attachment means.
Claims4
A reel comprising:
- a hollow cylindrical drum made from paperboard, the drum configured to receive strand or sheet material thereon, the drum defining an axis (A) about which the drum can rotate, the drum having a central bore and a drum inner surface defining a drum inner diameter (DID) and an outer surface defining a drum outer diameter (DOD), the drum extending axially from a first drum end to an opposite, second drum end;
- a first flange affixed to the first drum end;
- and
- a second flange affixed to the second drum end;
- wherein
- each flange is made from molded waste wood and a binder;
- each flange has a circular rim, a flange inner surface and a flange outer surface spaced axially apart from the inner surface;
- each flange further comprises a centrally located, annular hub, the hub having an outer perimeter surface for receiving the drum in a friction fit therewith, the hub having a hub outer diameter (HOD) substantially equal to the drum inner diameter (DID);
- each flange inner surface defines an annular groove located circumferentially around the hub and configured to receive an end of the drum, the end of the drum being adhered to the groove with adhesive;
- and
- the friction fit and adhesive secure the flanges to the drum sufficiently to eliminate the need for bolts or other attachment means.
8 more elements
A reel consisting essentially of:
- a hollow cylindrical drum made from paperboard, the drum configured to receive strand or sheet material thereon, the drum defining an axis (A) about which the drum can rotate, the drum having a central bore having a drum inner surface defining a drum inner diameter (DID) and an outer surface defining a drum outer diameter (DOD), the drum extending axially from a first drum end to an opposite, second drum end;
- a first flange affixed to the first drum end and a second flange affixed to the second drum end, each flange having a circular rim, a flange inner surface and a flange outer surface spaced axially apart from the inner surface, each flange further comprising a centrally located annular hub, the hub having an outer perimeter surface for receiving the drum in a friction fit therewith, each flange inner surface defining an annular groove located circumferentially around the hub and configured to receive an end of the drum;
- and
- adhesive disposed in the annular groove for adhering the flanges to the drum.
1 more element
A method of making a boltless reel, the method comprising the steps of:
- forming a hollow cylindrical drum from paperboard, the drum configured to receive strand or sheet material thereon, the drum defining an axis (A) about which the drum can rotate, the drum having a central bore that extends axially from a first drum end to an opposite, second drum end;
- molding a first flange from waste wood and a binder, the first flange having a circular rim and having a flange inner surface and a flange outer surface spaced axially apart from the flange inner surface, the first flange further comprising a centrally located hub having an outer perimeter surface and a hub outer diameter (HOD), the flange inner surface defining an annular groove located around the hub and configured to receive a first end of the drum, wherein the molding comprises
- drying the waste wood to produce dry waste wood;
- mixing the dry waste wood with the binder to make a mixture;
- and
- compressing the mixture in a mold cavity at a pressure and temperature to form the first flange;
- positioning the drum over the hub until the first end is inserted into the annular groove and the drum and the hub outer perimeter surface form a friction fit;
- adhering the first flange to the first end using adhesive;
- and
- molding a second flange in the same manner as the first flange and attaching the second flange to the second end of the drum in the same manner as the first flange;
- wherein
- the friction fit and adhesive secure the flanges to the drum sufficiently to eliminate the need for bolts or other attachment means.
9 more elements
Dependencies are inferred from the claim text.