Mattress assembly

• US 4,369,535 A
• Filed: 12/19/1980
• Issued: 01/25/1983
• Est. Priority Date: 12/20/1979
• Status: Expired due to Fees

• Current Assignee: Vredestein N. V.
• Original Assignee: Vredestein NV
• Inventors: Ekkerink, Pierre J.
• Primary Examiner(s): Grosz, Alexander
• Application Number:
  US06/218,034
• Time in Patent Office: 767 Days
• Field of Search: 5/481, 5/462, 5/460, 5/191, 5/236, 5/237, 297/DIG. 1
• US Class Current: 5/690
• CPC Class Codes: A47C 23/02 using leaf springs, e.g. metal strips wooden springs A47C23/06
• CPC Class Codes: A47C 23/06 using wooden springs, e.g. of slat type ; Slatted bed bases
• CPC Class Codes: A47C 27/16 reinforced with sheet-like or rigid elements, e.g. profiled
• CPC Class Codes: A47C 27/20 with springs moulded in, or situated in cavities or openings in foamed material

Abstract

The invention relates to a mattress assembly comprising an elongated framework, a plurality of parallel laths fastened therein in the direction of width and a mattress consisting at least partly of foam material said mattress assembly being characterized in that the central parts (10) of the laths (8) are located in the mattress and surrounded by foam material and in that the two end parts emerge from the mattress.

Claims

1. A mattress assembly comprising an elongated framework, a plurality of parallel laths fastened therein in the direction of width and a mattress consisting at least partly of foam material, characterized in that the central parts of the laths are located in the and surrounded by the foam material and in that the two end parts emerge from the mattress.

2. A mattress assembly as claimed in claim 1, characterized in that a free space (16) extending up to the side of the mattress assembly is left between the end parts (9) of the laths (8) and the part of the mattress located above said parts.

3. A mattress assembly as claimed in claim 1 or 2, characterized in that the central parts of the laths are enclosed in a lower block of foam material fastened to the bottom side of an upper block of foam material, which is larger in a horizontal sense.

4. A mattress assembly as claimed in claim 3, characterized in that the lower block is partly embedded in the upper block.

5. A mattress assembly as claimed in claim 3, characterized in that the material of the lower block has a degree of rigidity differing from that of the upper block.

6. A mattress assembly as claimed in claims 1 or 2 in which said laths have central parts which are upwardly curved, whereas the two ends are located substantially horizontally and on both sides of the central upward curve the laths have an upward curve.

7. A mattress assembly as claimed in claim 6 characterized in that the top sides of the lateral upwards curves are slightly lower than the central upward curve.

8. A mattress assembly comprising an open, rectangular framework presenting spaced, longitudinally extending side frame members interconnected at their opposite ends by end frame members;

a mattress comprising a lower portion formed of foam material and having a plan view profile which is smaller than the space enclosed by said frame members, said mattress also including an upper portion which peripherally overlies said framework and is spaced above at least said side frame members; and

a plurality of laths having their opposite ends resting on said side frame members and having central portions embedded within said foam material of the lower portion of the mattress to present opposite end portions which project from said lower portion to underlie the periphery of said upper portion of the mattress in spaced relation thereto.

9. A mattress assembly as defined in claim 8 wherein said upper portion is provided with an undersurface recess fixedly receiving said lower portion.

10. A mattress assembly as defined in claim 8 or 9 wherein the central portions of said laths are upwardly arched.

11. A mattress assembly as defined in claim 10 wherein each lath is provided to each side of its central portion with a secondary upward arch, all of the arches of each lath being embedded in the foam material of said lower portion of the mattress.

12. A mattress assembly as defined in claim 11 wherein the upper portion of the mattress is also formed of foamed material in which the foamed material of said lower portion is more rigid than that of the upper portion.

13. A mattress assembly as defined in claim 8 or 9 wherein the upper portion of the mattress is also formed of foamed material in which the foamed material of said lower portion is more rigid than that of the upper portion.