Beds – Having safety device – Side guard
Patent
1984-09-25
1986-08-19
Grosz, Alexander
Beds
Having safety device
Side guard
5481, 5490, A47G 900, A47C 2722
Patent
active
046060880
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a cushion or pillow, in particular for making upholstered furniture and comprising a generally block- or plate-shaped foam core and a fibrous stuffing material surrounding the core.
Cushions or pillows of the above type are known in the art and are usually sold to furniture manufactures as an intermediate article of manufacture for making upholstered furniture.
Examples of such cushions are disclosed in U.S. Pat. No. 3,283,346. The core is interposed between two batts of fibers which are generally coextensive with the core and each batt comprises loosely matted fibers. The batts and the core therebetween are disposed within a cover formed in two parts, one for each major side of the cushion, and each cover part has marginal edge portions which extend beyond the peripheral edges of the batts and core. These marginal edge portions are folded over each other in overlapping relation, and adhesive bonds are made partly between the overlapping edge portions and partly between the edge portions and the peripheral edges of the core.
This method of manufacture is complicated and, moreover, the cushions made thereby have several drawbacks. Thus, the relatively loose fibers in the two batts, which serve as stuffing material, are able to penetrate through the outer cover fabric if a relatively tight cover fabric is not used. Moreover, the stuffing material will eventually be "worn out" due to mechanical influences or stresses. This wear shows up by the cushion being thinner and harder at areas where it has been subjected to mechanical influences. The reason therefore is that the relatively short fibers, of which the stuffing material is constructed, will gradually be very firmly or permanently bonded into each other due to the mechanical influences, and this results in a harder and thinner stuffing material. Finally, the cushion must be cleaned by dry cleaning, since the mechanical influences, which the cushion is subjected to during usual washing and drying, will cause the fibrous stuffing material to lump or bond together which results in a substantial deterioration of the cushion.
The cushion or pillow according to the invention is characterized in that the stuffing material comprises at least one web or layer of a cable fiber material, the web being dimensioned and retained to completely enclose the core.
Cable fiber material is available in the shape of bundles of parallel and very long (in principle indefinitely long) fibers or filaments and such bundles can be spread out mechanically to define webs or layers wherein the long fibers or filaments still extend generally uniformly oriented and continuously through a cut web piece.
In accordance with the invention, the foam core is completely enclosed in one or more such web pieces or layers of cable fiber material, the web or webs of stuffing material being so dimensioned relative to the core that marginal portions of the stuffing material can be folded about the edges of the core in such a manner that the core is completely enclosed in the stuffing material. In the stuffing material there are no loose or free fibers which would possibly be able to penetrate through a cover and, accordingly, it is not necessary to make specific demands or limitations with respect to the tightness of the cover fabric.
Moreover, the long and continuous fibers or filaments in the stuffing material are not able to lump or bond together to a greater extent than the original shape of the stuffing material, and hence of the cushion, can be recovered by shaking. The fact that the fibers are not able to lump or bond firmly together has also the effect that cushions embodying the invention can be cleaned by usual washing and drying.
In order to stabilize or retain the stuffing material, it is not necessary to adhesively attach the stuffing material to the core, and suitable joints between the marginal portions of the stuffing material have proven to be sufficient. Such joints may be stitchings or weldings which are appropriately distributed around the core al
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patent: 3109182 (1963-11-01), Doak
patent: 3162868 (1964-12-01), Cramer
patent: 3283346 (1966-11-01), Marsh et al.
patent: 3403414 (1968-10-01), Unger
patent: 4080675 (1978-03-01), Kanowsky et al.
patent: 4184237 (1980-01-01), Blankenship
patent: 4207636 (1980-06-01), Ceriani
Herbsleb Peer
Michaelsen Jan
Grosz Alexander
Jorck & Larsen A/S
Vigil Thomas R.
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