US3094715A - Tubular frame construction for spring beds - Google Patents

Tubular frame construction for spring beds Download PDF

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Publication number
US3094715A
US3094715A US75383A US7538360A US3094715A US 3094715 A US3094715 A US 3094715A US 75383 A US75383 A US 75383A US 7538360 A US7538360 A US 7538360A US 3094715 A US3094715 A US 3094715A
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US
United States
Prior art keywords
sides
longer sides
section
flattened
corners
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
US75383A
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English (en)
Inventor
Pofferi Giancarlo
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.)
ITAL BED COST LETTI AFFINI
Ital-Bed Costruzione Letti Ed Affini S R L
Original Assignee
ITAL BED COST LETTI AFFINI
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 ITAL BED COST LETTI AFFINI filed Critical ITAL BED COST LETTI AFFINI
Application granted granted Critical
Publication of US3094715A publication Critical patent/US3094715A/en
Anticipated expiration legal-status Critical
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
    • A47C19/00—Bedsteads
    • A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
    • A47C19/021—Bedstead frames
    • A47C19/025—Direct mattress support frames, Cross-bars
    • A47C19/027—Direct mattress support frames, Cross-bars with means for preventing frame from sagging

Definitions

  • the present invention relates to improvements in bed frames, and for equivalent structure combined with spring members designed to form resilient supporting surfaces for mattresses and the like.
  • a frame made up according to the invention includes, in general, two U-s'haped tubular elements symmetrical to the length or with respect to the width of the frame. The elements are bent at the corners so that the frame sides are perpendicular to each other.
  • the spring members are extended in the transverse direction with respect to the frames length, in such a way that they stress the frame structure to flexure.
  • the partial flattening of the smaller sides, adjacent those to which the spring members are anchored compensates for the deformations imposed by the stresses generated by the spring members.
  • the invention eliminates the bending of the longer sides and effects the stifiening thereof.
  • a frame made up according to the invention is substantially formed by a tubular frame in one or more pieces.
  • the frame has shorter parallel sides adjacent those anchoring the spring members.
  • the short sides are parallel to the line 'of stress of the spring members.
  • the short sides are flattened with respect to the circular tubular cross-section; the deformation "being extended around the frames corners.
  • a frame which has two adjacent and opposed U shaped elements, joined together and flattened at the joined sides which are parallel to the lines of stress or tension of the springs.
  • FIG. 1 illustrates a perspective view of a bed frame, according to the invention, without any springs.
  • FIG. 2 illustrates a cross-section of the frames tubular structure taken along the line II-II of FIG. 1.
  • FIG. 3 illustrates the deformed tubular structure in a section taken along the line III-III of FIG. 1.
  • FIGS. 4 and 5 areplan views of the frame, before and after the springs are assembled.
  • FIG. 6 is a section of the central zone of the frames longitudinal sides taken on line VIVI .of FIG. 1.
  • a rectangular bed frame or the like is formed by tubular elements having a circular cross-section as illustrated in FIG. 2. These tubular elements from the longer sides 1 to which the sinusoidal springs 2 are anchored as indicated in FIG. 5.
  • the sides 3- are perpendicular to the sides 1 and define the frames shorter sides. Sides 2 are parallel to the line of tension of the springs 2.
  • the frames corners 4 are curved and continuous with the tubular sides 1 and 2.
  • the frame is formed by two U-shaped symmetrical members joined along the lines '5 (see FIG. 1).
  • Four legs 6 are detachably secured to sides 1 near corners 4.
  • the sides 3 are partly deformed by flattening in a direction perpendicular to the plane in which the frame lies, in such a way as to assume a somewhat oval or flattened cross-sectional configuration as illustrated, for example, in FIG. 3.
  • the flattening zone is extended around the arcuate corner portions 4.
  • the partial flattening of the tubular structure increases the resistance to flexure of the portions 3 and increase the stifiening of the sides 1 which are continuous with arcuate corners '4.
  • central sections 1a of sides 1 are slightly flattened to oval shape.
  • the major axis of the flattened section 1a is inclined outwardly and upward and downwardly inward with respect to the horizontal plane of the frame.
  • a bed frame construction comprising an endless flat rigid rectangular tubular member having two parallel shorter sides and two parallel longer sides perpendicularly disposed to the shorter sides, said member having four arcuately bent tapered corners continuous with the shorter and longer sides, said shorter sides and corners being flattened to substantially oval form through their lengths, the major axes of the flattened sides and corners being disposed in the plane of said member, and a plurality of sinuous springs tensioned along their lengths disposed in axially parallel positions in the plane of said member, said springs being secured at opposite ends thereof to spaced points only along the longer sides thereof, the flattened sides and corners of said member resisting the tension in said springs and forces applied by the springs to the longer sides when the springs are loaded, each of the longer sides having a central section and two end sections, each central section being flattened to substantially oval form, each central section having two flat opposed faces disposed parallel to each other, the major axes of the flattened central sections being inclined outwardly upward and downwardly inward with respect to
  • a bed frame construction comprising an endless fiat rectangular tubular member having two parallel shorter sides and two parallel longer sides perpendicularly disposed to the shorter sides for engaging opposite ends of a plurality of sinuous springs in the plane of said member, said member having four arcuately bent corners continuous with the shorter and longer sides, said shorter sides and corners being flattened to substantially oval form throughout their lengths, the major axes of the flattened sides and cor-ners being disposed in the plane of said member, each of the longer sides having a central section and two end sections, each central section being flattened to substantially oval form, each central section having two flat opposed faces disposed parallel to each other, the major axes of the flattened central sections being inclined outwardly upward and downwardly inward with respect to the horizontal plane of said member, the end sections of the longer sides being circular in crosssection, each end section being integrally joined at one end to a central section by a tapered transition section, each end section being integrally jointed at its other end to a round end of one of the tapered corners

Landscapes

  • Invalid Beds And Related Equipment (AREA)
  • Springs (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
US75383A 1959-12-10 1960-12-12 Tubular frame construction for spring beds Expired - Lifetime US3094715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2049959 1959-12-10

Publications (1)

Publication Number Publication Date
US3094715A true US3094715A (en) 1963-06-25

Family

ID=11167849

Family Applications (1)

Application Number Title Priority Date Filing Date
US75383A Expired - Lifetime US3094715A (en) 1959-12-10 1960-12-12 Tubular frame construction for spring beds

Country Status (9)

Country Link
US (1) US3094715A (nl)
AT (1) AT222289B (nl)
BE (1) BE598034A (nl)
CH (1) CH376244A (nl)
DE (1) DE1208049B (nl)
DK (1) DK100590C (nl)
FR (1) FR1275788A (nl)
GB (1) GB900791A (nl)
NL (1) NL111443C (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430507A1 (fr) * 1978-07-06 1980-02-01 Metodecor Sa Procede et moyens pour la realisation d'un cadre rigide
DE3736467C1 (de) * 1987-10-28 1989-06-01 Axel Dipl-Ing Bruchhaeuser Kragstuhl mit einem Stuhlgestell aus Stahlrohr

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US861508A (en) * 1906-03-24 1907-07-30 Orrin G Franks Bed.
US2040995A (en) * 1934-10-09 1936-05-19 William A Holt Bottom frame for spring beds
US2969124A (en) * 1958-09-29 1961-01-24 George P Nissen Bounding beds

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR709938A (fr) * 1931-01-24 1931-08-14 Lit métallique pliant
FR763144A (fr) * 1933-10-17 1934-04-24 Guggenheim & Co S Couchette
CH248434A (fr) * 1946-05-08 1947-05-15 Salvador Antonio Betere Sommier métallique.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US861508A (en) * 1906-03-24 1907-07-30 Orrin G Franks Bed.
US2040995A (en) * 1934-10-09 1936-05-19 William A Holt Bottom frame for spring beds
US2969124A (en) * 1958-09-29 1961-01-24 George P Nissen Bounding beds

Also Published As

Publication number Publication date
BE598034A (fr) 1961-03-31
GB900791A (en) 1962-07-11
CH376244A (it) 1964-03-31
DE1208049B (de) 1965-12-30
NL111443C (nl) 1965-06-15
AT222289B (de) 1962-07-10
FR1275788A (fr) 1961-11-10
DK100590C (da) 1964-12-14

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