US3838469A - Undermattress - Google Patents

Undermattress Download PDF

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Publication number
US3838469A
US3838469A US00325447A US32544773A US3838469A US 3838469 A US3838469 A US 3838469A US 00325447 A US00325447 A US 00325447A US 32544773 A US32544773 A US 32544773A US 3838469 A US3838469 A US 3838469A
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US
United States
Prior art keywords
frame
horizontal members
elements
undermattress
set forth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00325447A
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English (en)
Inventor
J Rademaker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RADEMAKER C AND ZOOM
RAWI FAB BV
Original Assignee
RADEMAKER C AND ZOOM
RAWI FAB BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RADEMAKER C AND ZOOM, RAWI FAB BV filed Critical RADEMAKER C AND ZOOM
Application granted granted Critical
Publication of US3838469A publication Critical patent/US3838469A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/02—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using leaf springs, e.g. metal strips
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type
    • A47C23/14—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type forming nets; combined with nets

Definitions

  • ABSTRACT Foreign Application Priority Data
  • An undermattress consisting of a frame having a number of horizontal members and a supporting surface disposed thereon for a top mattress, said supporting surface being formed by a set of wire-shaped or tubeshaped elements parallel with one another which extend transversely over the horizontal members between the frame sides parallel therewith and which are secured against displacement in relation thereto.
  • the supporting surface is formed by a set of wire-shaped or tube-shaped elements parallel with one another which extend transversely over the horizontal members between the frame sides parallel therewith and are secured against transverse displacement in relation thereto.
  • a mattress support of this kind has a very large open surface, because the open spaces are bounded by two adjacent parallel elements and two horizontal members placed apart at a distance which is a multiple of the distance between the elements.
  • the supporting surface is stiffened by the supporting effect of the horizontal members.
  • the apertures cannot become imperrnissibly large, since the elements are secured against transverse displacement in relation to the horizontal members.
  • a large amount of material is saved in comparison with the prior art steel wire mattresses, since use is made exclusively of straight wire-shaped or tube-shaped elements extending in one direction. This also has the advantage of reducing cost and making the mattress support very easy to handle.
  • the elements are secured by their ends in the frame sides parallel with the horizontal members. In that case the elements need not be attached to the horizontal members in the longitudinal direction.
  • the horizontal members are secured in the long sides of the frame and the elements take the form of steel wires spot-welded to the horizontal members. The result is a very rigid construction, since the wires have only very short free portions and therefore local loading subjects only a small portion of the wire to tensile stressing.
  • Another special advantage is that the welding of the wire, first by its end to the first horizontal member and then successively to each following horizontal member, heats and therefore expands the wire, so that after cooling its free portions are prestressed.
  • the horizontal members are formed with recesses in which the elements rest.
  • the elements have a plastic coating by means of which they are glued or welded to the plastic coating of the horizontal members. In this way the elements can be secured in a very simple manner, and the mattress can be given an attractive appearance by the use of differently coloured plastics.
  • the horizontal members have punched-out lips beneath which the elements are clamped. In that case there is no need for welding or glueing.
  • the horizontal members are formed by an angular section, more particularly a square tube, which is secured in a position such that the wire-shaped elements contact an angular edge of the section.
  • a construction of this kind is very advantageous for spot-welding since it readily produces point contact between the wires and the horizontal members.
  • FIG. 1 is a perspective view of a mattress according to the invention
  • FIG. 2 is a section through a portion of the mattress illustrated in FIG. 1, taken parallel with its long side, and
  • FIG. 3 is a plan view of a portion of the mattress illustrated in FIG. I.
  • the mattress illustrated in the drawings consists of a frame of metal tube sections. Two sections 1, 2 form the long sides of the frame, while its short sides are formed by sections 3, 4
  • the frame can also be formed by wooden beams.
  • the frame also has five horizontal members 5 secured, for instance by welding, to the long sides 1, 2.
  • Sections 5 are formed by square tubes having one edge turned upwards.
  • the mattress-supporting surface is formed by a set of straight wires 6 extending parallel at a short distance from one another along the long sides 1, 2 of the frame.
  • the wires 6 are welded to the horizontal members 5. At their'ends the wires 6 are inserted into apertures in the sections 3 and 4 forming the short sides of the frame.
  • the wires can be secured fairly tightly in the apertures by clamping.
  • wires are welded to the horizontal members 5, there is no need for the wires to be rigidly secured in the short sides of the frame. However, this of course does not mean that in certain circumstances it may not be advantagous to secure the wires rigidly in the short sides of the frame by welding or in some other manner.
  • the supporting surface is very rigid, since the wires 6 have a very short free length, so that they cannot stretch under loading. As a result they also have high resistance to sagging between the horizontal members 5.
  • An undermattress consisting of a rigid frame of open rectangular construction and a plurality of rigid horizontal members extending between and joined to opposite sides of said frame in spaced relation to each other parallel with the ends of said frame whereby said open rectangular construction afforded by said frame is subdivided into a number of smaller open rectangular subframes, and a rigid mattress-supporting surface disposed within the open rectangular construction of said frame, said supporting surface being formed by a set of wire-shaped or tube-shaped elements disposed in spaced parallel coplanar relation with one another and parallel to said frame sides to extend transversely over the horizontal members between said frame ends, and means rigidly securing said elements to the assembly constituted by said frame and horizontal members for preventing displacement of said elements whereby to present a rigid mattress support which also provides a major portion of its area as ventilation openings.
  • An undermattress as set forth in claim 3 characterised in that said horizontal members are formed by an angular section more particularly a square tube, which is secured in a position such that said wire-shaped elements contact an angular edge of the section.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Wire Processing (AREA)
US00325447A 1972-06-30 1973-01-22 Undermattress Expired - Lifetime US3838469A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7209273A NL7209273A (pl) 1972-06-30 1972-06-30
FR7347176A FR2256632A5 (en) 1972-06-30 1973-12-28 Mattress with a steel tube frame - has parallel rods or tubes supported by parallel cross-tubes

Publications (1)

Publication Number Publication Date
US3838469A true US3838469A (en) 1974-10-01

Family

ID=44356150

Family Applications (1)

Application Number Title Priority Date Filing Date
US00325447A Expired - Lifetime US3838469A (en) 1972-06-30 1973-01-22 Undermattress

Country Status (8)

Country Link
US (1) US3838469A (pl)
JP (1) JPS4986161A (pl)
AT (1) AT323930B (pl)
DE (1) DE2332985A1 (pl)
FR (1) FR2256632A5 (pl)
GB (1) GB1374547A (pl)
IT (1) IT1005155B (pl)
NL (1) NL7209273A (pl)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352522A1 (fr) * 1976-05-24 1977-12-23 Frapo Spa Sommier et procede pour sa fabrication
GB2187087A (en) * 1986-02-27 1987-09-03 Alan Swinburne Adjustable mattress support
US5155881A (en) * 1991-12-17 1992-10-20 Batts, Inc. Adjustable bed with wire grid mattress support
FR2791237A1 (fr) * 1999-03-26 2000-09-29 Jean Guy Pierre Denis Lecart Couchage de securite
US20110301751A1 (en) * 2010-06-03 2011-12-08 Li Creative Technologies Low noise humanoid robotic head system
US8091161B1 (en) * 2009-08-27 2012-01-10 Schulz Jr Martin Variable spring surface deck and foundation having variable spring surface deck

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195518U (pl) * 1975-01-27 1976-07-31
JPS51116104U (pl) * 1975-03-17 1976-09-20
JPS551482Y2 (pl) * 1976-11-24 1980-01-17
JPS551483Y2 (pl) * 1976-12-15 1980-01-17
JPS5781666U (pl) * 1980-11-05 1982-05-20
GB2134380B (en) * 1983-01-27 1986-08-13 Richard Anthony Chamberlain Horticultural benching
JPS6229150U (pl) * 1985-08-05 1987-02-21

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803293A (en) * 1953-10-12 1957-08-20 David L Rowland Spring assembly
US2909216A (en) * 1957-09-03 1959-10-20 Stubnitz Greene Spring Corp Spring seat
US3188073A (en) * 1963-03-13 1965-06-08 American Metal Prod Seat construction
US3441961A (en) * 1966-01-27 1969-05-06 Jannes Jonge Poerink Bedstead with spring steel bottom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803293A (en) * 1953-10-12 1957-08-20 David L Rowland Spring assembly
US2909216A (en) * 1957-09-03 1959-10-20 Stubnitz Greene Spring Corp Spring seat
US3188073A (en) * 1963-03-13 1965-06-08 American Metal Prod Seat construction
US3441961A (en) * 1966-01-27 1969-05-06 Jannes Jonge Poerink Bedstead with spring steel bottom

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352522A1 (fr) * 1976-05-24 1977-12-23 Frapo Spa Sommier et procede pour sa fabrication
GB2187087A (en) * 1986-02-27 1987-09-03 Alan Swinburne Adjustable mattress support
US5155881A (en) * 1991-12-17 1992-10-20 Batts, Inc. Adjustable bed with wire grid mattress support
FR2791237A1 (fr) * 1999-03-26 2000-09-29 Jean Guy Pierre Denis Lecart Couchage de securite
US8091161B1 (en) * 2009-08-27 2012-01-10 Schulz Jr Martin Variable spring surface deck and foundation having variable spring surface deck
US20110301751A1 (en) * 2010-06-03 2011-12-08 Li Creative Technologies Low noise humanoid robotic head system

Also Published As

Publication number Publication date
NL7209273A (pl) 1974-01-02
GB1374547A (en) 1974-11-20
DE2332985A1 (de) 1974-01-10
FR2256632A5 (en) 1975-07-25
IT1005155B (it) 1976-08-20
JPS4986161A (pl) 1974-08-17
AT323930B (de) 1975-08-11

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