Spring Tube And A Spring Pack For Spring Mattresses

a technology of spring mattress and spring tube, which is applied in the direction of seating furniture, sofas, and mattresses, can solve the problems of mattresses obtained

Inactive Publication Date: 2010-07-22
GASOLINEATI CESARE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]The object of the present invention is to propose a spring tube and a spring pack for mattresses shaped in such a way, as to avoid the above mentioned disadvantage, thus obtaining a homogeneous reaction of the springs independently from the load orientation and distribution.

Problems solved by technology

The disadvantage of the mattress obtained according to the above mentioned constructive technique derives from the fact that the assembly of springs does not resist elastically in homogeneous way, because the elastic reaction depends on whether the weight is applied prevailingly extending longitudinally or transversally.

Method used

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  • Spring Tube And A Spring Pack For Spring Mattresses
  • Spring Tube And A Spring Pack For Spring Mattresses
  • Spring Tube And A Spring Pack For Spring Mattresses

Examples

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Embodiment Construction

[0022]Referring to the above mentioned Figures, reference numeral 1 indicates the spring tube from which the spring pack for mattresses proposed by the invention is obtained.

[0023]The spring tube 1, like the known ones, includes a tube 10 of floppy plastic material, within which the springs 2 are enclosed and kept arranged side by side, at a selected distance.

[0024]The parts of the tube wall between one spring 2 and the subsequent one, are joined by welding lines 12, crossing the whole tube side to side, obtained e.g. by ultrasound welding. The welding lines are parallel to the axes A of the springs 2, so that each spring is contained within a closed portion 13 of the tube 10, separated from adjacent portions 13 (FIGS. 1a and 1b).

[0025]According to the invention, the welding lines 12 have a width L sufficient to assure the sealing of the portions 13 even after having done longitudinal cuts 120 along a center line of each portion 13.

[0026]According to a first preferred embodiment of ...

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PUM

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Abstract

A spring tube (1) encloses in known way a plurality of springs (2) arranged side by side, with facing parts of the wall (11) of the tube (10) joined, between one spring (2) and a subsequent spring, by welding lines (12), so that each spring (2) is contained in a portion (13) of tube (10), closed and separated from adjacent portions (13). The welding lines (12) have a predetermined minimum width (L) and are cut from one side of the tube inwards, so that each of the closed portions (13), containing a spring (2), can be compressed without any effect on the adjacent portions (13). this improves comfort while using a mattress manufactured with grouped spring packs (S) obtained from the spring tube (1). According to a second preferred embodiment, the spring tube (1) is cut along the welding lines at both sides.

Description

BACKGROUND OF THE INVENTION[0001]The invention relates to the technical field concerning the production of spring mattresses. In particular, the present invention relates to a spring tube and a spring pack obtained from the spring tube. The spring packs obtained from the spring tube are used to manufacture spring mattresses.DESCRIPTION OF THE PRIOR ART[0002]According to a widely used constructive technology, the springs use to manufacture spring mattresses are enclosed in a plastic tube, which keep them firmly side by side at a prefixed reciprocal distance. This is obtained by welding the facing parts of the tube walls comprised between adjacent springs to each other, for example by ultrasonic welding, so that each spring is contained in a portion of tube, closed and separated from the adjacent portions.[0003]Afterwards, the tube with the springs is cut into pieces to form spring packs having a selected length, and the spring packs are joined, side by side, so as to obtain an assemb...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A47C27/06
CPCA47C27/064
Inventor PETROLATI, CESAREROSSI, DORIANOWELLS, TOM
Owner GASOLINEATI CESARE
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