Upper mattresses
AssigneeMarpal AG
InventorHugo Degen
Life of this patent
Estimating the term…
Abstract
An upper mattress for reclining or seating furniture comprises a foam substance member preferably divided horizontally into two symmetrical halves. A plurality of cavities extend through the middle of the member or between the halves transversely to the longitudinal axis of the mattress. Each cavity is defined by a wall having a step forming a horizontal support shoulder extending parallel to the longitudinal axis of the cavity. The shoulder is arranged between the apex of the cavity and the median plane so that the resilient reaction force of the mattress increases continuously with increasing loading and then, when the support shoulder is deflected so as to come into contact with an opposite part of the cavity wall, assumes a progressively increasing value.
Claims11
An upper mattress for reclining or seating furniture, said mattress comprising:
- (a) a foam substance member having a longitudinal axis and a plurality of cavities formed therein,
- (b) each cavity defined by a boundary wall and having a longitudinal axis and at least one horizontal support shoulder,
- (c) each cavity further having a horizontal plane of symmetry and an apex with an intermediate region therebetween,
- (d) the longitudinal axes of said cavities extend transversely to the longitudinal axis of said member, and
- (e) each said boundary wall including said at least one horizontal shoulder which extends parallel to said longitudinal axis of said cavity,
- (f) said at least one horizontal shoulder being situated at said intermediate region whereby the resilient reaction force of said foam substance member adjacent each said cavity initially rises continuously with increasing loading and thereafter, as soon as said support shoulder is deflected to contact said boundary wall, assumes a progressively increasing value.
A mattress comprising:
- (a) a foam substance member having a longitudinal axis and a plurality of cavities formed therein,
- (b) each cavity having a longitudinal axis and being defined by a boundary wall extending between an apex, and a laterally spaced horizontal plane with at least one horizontal support shoulder intermediately located between said apex and said horizontal plane,
- (c) each cavity extending transversely to the longitudinal axis of said foam substance member,
- (d) said at least one horizontal shoulder being effective to cause the resilient reaction force of said foam substance member adjacent each said cavity to initially rise continuously with increasing loading on said mattress.
Dependencies are inferred from the claim text.