Process and apparatus for producing filling material
AssigneeAnmin Manufacturing Co., Ltd.
InventorKazo Yasue
Life of this patent
Estimating the term…
Abstract
Process and apparatus for producing a synthetic filling material comprising a plurality of filaments having a short fiber length and being bent in the form of a loop to be converged to one point and to be integrally bonded at the converged point. A filament bundle formed of a plurality of gathered filaments is inserted among filament bending members to bend the filament bundle zigzag and is heated to cut and bond on the top of the zigzag at one side thereof.
Claims5
A process for producing filling material, which comprises steps of inserting a filament bundle formed of a plurality of arranged filament among a plurality of filament bending members disposed contiguously to one another by filament inserting members in the state where the filament bundle is kept in contact with the end portions of the filament bending members, to bend the filament bundle zigzag, heating and melt-cutting the filament bundle at the parts kept in contact with the end portions of the filament bending members to form two fold filament bundles having a short fiber length and simultaneously fusion-bonding the end portions of the filament bundles near said melt-cut parts, whereby is obtained filling material comprising a plurality of filament having a short fiber length and being bent in the form of a loop, ends of said filaments converging to one point and the converging filaments being integrally fusion-bonded to one another at said convergent point.
An apparatus for producing filling material, which comprises two endless members supported by pulleys respectively, a plurality of filament bending members disposed contiguously to one another on the first endless member, a plurality of filament inserting members disposed contiguously to one another on the second endless member, said filament bending members and said filament inserting members being arranged so that they can be advanced between the point where the top ends of the filament bending members confront the top ends of the filament inserting members and the point where the top ends of the filament bending members alternate with the top ends of the filament inserting members, and a heater of a melt-cutting and fusion-bonding member which is disposed at the point where the top ends of the filament bending members alternate with the top ends of the filament inserting members, in the state where the heater is kept in contact with the top ends of the filament bending members, whereby the filament bundles are melt cut at the top of the filament bending members and said melt cut ends fuse to form loops.
Dependencies are inferred from the claim text.