Hollow tubular center bulging foam spring

A tubular, hollow technology, applied in the field of foam springs, can solve the problems of small height and diameter, collapse, lateral misalignment, etc.

Active Publication Date: 2020-10-16
ELISANA S A R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage of these foam springs is that they can experience lateral (sideways) misalignment or collapse when an axial load is applied
Another disadvantage is its small height-to-diameter ratio, which also limits the packing density of the spring bed

Method used

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  • Hollow tubular center bulging foam spring
  • Hollow tubular center bulging foam spring
  • Hollow tubular center bulging foam spring

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Embodiment Construction

[0024] Before the inventive subject matter is described in detail, it is to be understood that this disclosure is not limited to particular embodiments described, as changes may be made in these embodiments. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not limiting, since the scope of the present disclosure will be limited only by the appended claims. While the invention is capable of different embodiments in different forms, there has been shown in the drawings and will be described in detail herein a preferred embodiment of the invention, it being understood that this disclosure is to be considered as illustrative of the principles of the invention, And the scope of the present invention is not limited to the shown embodiments. Unless stated otherwise, all features, elements, components, functions and steps described with respect to any embodiment presented herein can be freely combined and ...

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Abstract

A hollow tubular foam spring (10) having a plurality of radially extending holes (20) extending from an outer surface (30) towards a central hollow core (40). The tubular foam spring (10) is arrangedwith wall thickness and diameter to height ratios such that center bulging is achieved under compressive loads. In an embodiment, such as in a mattress, seat, cushion or pillow, springs (10) are arranged in an array whereby some impinge upon one another due to central bulging.

Description

[0001] This application claims priority to US Patent Application 62 / 590,084, entitled "Hollow Tubular Central Expansion Foam Spring," filed November 22, 2017, which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to generally cylindrical foam springs for use in cushions, pillows, mattresses, seats and the like. Background technique [0003] Various hollow core foam springs are known for use in cushions, pillows, seats, mattresses, and the like. Generally tubular foam springs having a plurality of slits or holes extending inwardly from an outer surface are also known. [0004] An example of such a hollow cylindrical foam spring can be found in US Patent 4,194,255 to Pope and US Published Application US 2009 / 0079119A1 to Poppe. In this example, inwardly extending generally transversely uniform holes are shown, wherein the holes form transversely extending diamond shapes. One disadvantage of such structures is that e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C27/06F16F1/37
CPCA47C27/04A47C27/14A47G9/10A47G2009/1018A47C27/065F16F1/37A47C23/0438A47C7/18A47C20/02A47C27/0453A47C27/056A47G2400/10F16F2224/0225F16F2234/02
Inventor S.塞斯科H.P.沃纳
Owner ELISANA S A R L
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