Bobbin core
AssigneeDayco Corporation
InventorRandy E. Bryant
Life of this patent
Estimating the term…
Abstract
A tubular core for carrying yarn wound therearound to define a bobbin for a textile machine, and method of making such core are provided, wherein the core has a load-carrying structure and an inside portion which is adapted to be engaged by a carrier shaft to provide substantially frictional holding of the core and bobbin on the shaft and wherein such inside portion comprises a sleeve made of a yieldable resilient polymeric material which is adapted to be yieldingly compressed between the structure and at least parts of the shaft to provide the frictional holding of the core in an improved manner and the yieldable resilient material of the sleeve enables the core and bobbin to be driven on the shaft while keeping such core substantially intact as well as enabling damage-free removal thereof to thereby define a reusable core.
Claims13
In a tubular core of a predetermined length for carrying yarn wound therearound to define a bobbin for a textile machine wherein said core has a load-carrying structure of said predetermined length and an inside portion which is adapted to be engaged by a carrier shaft to provide substantially frictional holding of said core and bobbin on said shaft, the improvement wherein said inside portion comprises a tubular sleeve of said predetermined length and made of a yieldable resilient polymeric material which is secured to said structure throughout said predetermined length thereof and which is adapted to be yieldingly compressed between said structure and at least parts of said shaft to provide said frictional holding of said core in an improved manner, and said yieldable resilient material of said sleeve enable said core and bobbin to be driven on said shaft while keeping said core substantially intact as well as enabling damage-free removal thereof to thereby define a reusable core.
In a tubular core for carrying yarn wound therearound to define a bobbin for a textile machine wherein said core has a load-carrying structure and an inside portion which is adapted to be engaged by a carrier shaft to provide substantially frictional holding of said core and bobbin on said shaft, the improvement wherein said inside portion comprises a sleeve made of a yieldable resilient polymeric material which is adapted to be yieldingly compressed between said structure and at least parts of said shaft to provide said frictional holding of said core in an improved manner, and said yieldable resilient material of said sleeve enables said core and bobbin to be driven on said shaft while keeping said core substantially intact as well as enabling damage-free removal thereof to thereby define a reusable core, said structure being made of paper, said paper being a wound paper strip having a plurality of turns, said paper strip having a first turn fastened to said sleeve and adhesive means fastening adjoining turns thereof.
Dependencies are inferred from the claim text.