Spring devices – Spring panel
Patent
1996-03-11
2000-06-27
Oberleitner, Robert J.
Spring devices
Spring panel
29429, 53114, 53548, F16F 300
Patent
active
060796995
DESCRIPTION:
BRIEF SUMMARY
This invention relates to spring assemblies for use in mattresses, spring upholstered furniture and the like, to apparatus for manufacturing such spring assemblies, and to a method of manufacturing such spring assemblies. The present invention also relates to a spring interior comprised of a plurality of such spring assemblies. The present invention further relates to an article of spring upholstered furniture comprised of one or more of such spring assemblies.
In our International Patent Application No. WO 90/01285 we have disclosed a spring unit for use in making spring interiors for articles of furniture comprising a continuous coil sheathed in an envelope of strong yet flexible material. The sheath may comprise a tube into which a spring is inserted through a sleeve. In another construction the free ends of a sheet of calico material and a length of spring are drawn down through a Vee-shaped former which serves to direct the continuous edges of the sheet up and around the spring and simultaneously draws the sides of the sheet together whereafter they are stitched together in this position. Sheathed coil springs so produced may then be cut into discrete lengths which can then be arranged side-by-side and connected together, for example by the use of hog rings, to form a spring assembly. In another construction, a spring assembly can be formed by folding back and forth several times a single length of sheathed coil spring to form a plurality of rows disposed side-by-side.
We are aware of French Patent No. 1 503 723 which discloses a mattress comprising a succession of rows of metal springs which are arranged side-by-side and parallel to each other. Each row is individually encased in a fabric sleeve which separates itself from its neighbours. Each of the different sleeves is formed of two pieces of cloth, one below and one above, and the two pieces of cloth are fastened to each other in straight parallel lines between each row of springs, and at a position half way up the height of the spring.
In our International Patent Application No. WO 91/05732 we have also disclosed apparatus for encapsulating spring units between a pair of webs, in which the apparatus comprises an insertion device for inserting a spring unit between a pair of webs, means for tightening or tensioning the webs about the spring unit, compression means for compressing the spring unit, and securing means for securing the webs together in close proximity to the compressed spring unit to encapsulate same. A series of such encapsulated spring units comprise a spring assembly.
According to one aspect of our present invention a spring assembly comprises upper and lower superimposed webs of strong yet flexible material which are connected together at spaced intervals to define a plurality of similar pockets arranged side-by-side in a parallel relationship, and a length of continuous coil spring inserted into each successive pre-formed pocket.
The spring assembly may be cut to any convenient length, and may be used on its own or superimposed upon one or more similar assemblies to form a spring interior for a mattress or for use in other articles of upholstered furniture.
According to another aspect of our invention apparatus for use in making spring assemblies comprises upper and lower continuous webs of strong yet flexible material drawn into a superimposed relationship at a securing station, securing means adapted to traverse the webs at the securing station, to secure them together at spaced parallel locations, in turn to form a succession of spaced parallel pockets which traverse the webs, and an insertion device for inserting a spring unit into each successive pocket at an insertion station downstream of the securing station.
Preferably means are provided for drawing the webs from respective upper and lower rolls and through the stations in an intermittent step wise movement in synchronism with the operation of at least the securing means at the securing station.
The insertion device may comprise an elongate channel or trough shaped membe
REFERENCES:
patent: 2983236 (1961-05-01), Thompson
patent: 3668816 (1972-06-01), Thompson
patent: 4439977 (1984-04-01), Stumpf
patent: 4854023 (1989-08-01), Stumpf
patent: 5134763 (1992-08-01), Schulz, Jr. et al.
patent: 5553443 (1996-09-01), St. Clair et al.
Lipka Pamela J.
Oberleitner Robert J.
Slumberland PLC
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