Variable-size bed
AssigneeStjernfjadrar AB
InventorsJohan Dahlin, Claes Lindh, Olov Karlsson, Håkan Karlsson
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Abstract
The present invention relates to a variable-size bed (10) comprising a mattress core (16) and a base (14), which base is adapted to support at least a portion of the mattress core, wherein the mattress core and base have adjustable widths or lengths and each of the mattress core and base is changeable between an expanded state and a contracted state corresponding to an expanded state and a contracted state of the bed, respectively, and wherein the bed further comprises a cover means adapted to provide covering over the mattress core in both the expanded state and the contracted state of the bed. The present invention also relates to a vehicle comprising such a variable-size bed.
Claims23
A variable-size bed comprising:
- a mattress core;
- and
- a base configured to support at least a portion of the mattress core, wherein the mattress core and base have adjustable widths or lengths and each of the mattress core and base is changeable between an expanded state and a contracted state corresponding to an expanded state and a contracted state of the bed, respectively,
- wherein the bed further includes a cover configured to provide covering over the mattress core in both the expanded state and the contracted state of the bed,
- wherein the mattress core is a pocket-spring mattress core having a plurality of interconnected coil springs enclosed in spring covers, in which the pocket-spring mattress core includes at least two springs that are located adjacent to one another and are arranged side-by-side to be aligned along an axis extending in a direction in which the mattress core and base adjust in said widths or lengths between the expanded and contracted states,
- wherein each of the at least two springs includes a central axis, which are aligned substantially parallel to the axis extending in the direction that the mattress core expands and contracts, and
- wherein the at least two springs are spaced apart by an interadjacent separation distance when the mattress core is in the expanded state and are closer together when the mattress core is in the contracted state.
A variable-size bed, comprising:
- a mattress core;
- a base to support the mattress core, the base and mattress core configured to adjust in width or length between expanded and contracted states corresponding to respective expanded and contracted states of the bed;
- a cover configured to cover the mattress core in both the expanded and contracted states of the bed;
- and
- a retractor configured to release the cover when the bed changes from the contracted state to the expanded state and to retract the cover when the bed changes from the expanded state to the contracted state, wherein:
- the mattress core includes adjacent coil springs spaced by a distance when the mattress core is in the expanded state and closer together when the mattress core is in the contracted state, and
- the retractor includes a non-elastic material coupling an edge of the cover to the base of the bed, said non-elastic material being arranged to maintain the cover in a substantially tense state.
A variable-size bed, comprising:
- a mattress core;
- a base configured to support at least a portion of the mattress core, the based and mattress core configured to adjust in width or length between expanded and contracted states corresponding to respective expanded and contracted states of the bed, respectively,
- a cover configured to cover the mattress core in both the expanded and contracted states of the bed;
- and
- a first roller configured to automatically roll out the cover in the expanded state and roll in the cover in the contracted state, wherein:
- the mattress core includes adjacent springs spaced by a distance when the mattress core is in the expanded state and closer together when the mattress core is in the contracted state, and
- a first portion of the cover coupled to the first roller is thinner than a second portion of the cover.
An apparatus to provide support, comprising:
- a base;
- and
- a core coupled to the base and including a plurality of springs,
- wherein a size of the base and core change in a first direction between contracted and expanded states,
- wherein at least two springs of the plurality of springs are located adjacent to one another and aligned along an axis extending in the first direction and are separated by a first distance in the contracted state and are separated by a second distance greater than the first distance in the expanded state, and
- wherein each of the at least two springs includes a central axis, which are aligned substantially parallel to the axis extending in the direction that the mattress core expands and contracts.
Dependencies are inferred from the claim text.