US3441961A - Bedstead with spring steel bottom - Google Patents

Bedstead with spring steel bottom Download PDF

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Publication number
US3441961A
US3441961A US610406A US3441961DA US3441961A US 3441961 A US3441961 A US 3441961A US 610406 A US610406 A US 610406A US 3441961D A US3441961D A US 3441961DA US 3441961 A US3441961 A US 3441961A
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US
United States
Prior art keywords
wires
spring steel
bedstead
longitudinal
wire
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
US610406A
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English (en)
Inventor
Jannes Jonge Poerink
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Individual
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Individual
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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
    • A47C23/12—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
    • 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
    • A47C23/145—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 with horizontal interlocking wound springs; Attachment thereof to the frame
    • 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
    • A47C23/15—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 with braided or crossed flat springs or cords; with horizontal wound springs
    • 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
    • A47C23/28—Tensioning devices therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/04—Clamps for attaching flat elastic strips or flat meandering springs to frames
    • A47C31/06—Clamps for attaching flat elastic strips or flat meandering springs to frames for attaching flat meandering springs

Definitions

  • This invention provides a bedstead comprising a frame member and a spring steel gauze bottom member.
  • the gauze bottom member includes a plurality of wires interlaced by several transverse wires which are arranged in pairs.
  • a pair of the transverse wires is mounted within a hook means which is carried by the frame member at each end thereof. That is, in each hook portion there is an outermost transverse wire and an inner transverse wire engaged by each of the said hooks.
  • the longitudinal wires have free ends passing between the said outermost transverse wire and inner transverse wire. These free ends are completely bent around the said outermost transverse wire to connect the said spring steel gauze member to the said frame member.
  • All of the hitherto known bedsteads are provided with frame parts the longitudinal and transverse sides of which are engaged by coil springs and wire bracings supporting a plurality of conical helical springs the tips of which are directed downwardly.
  • the wires and springs are covcred by a protecting blanket consisting of sack-cloth, on which the spring-mattresses are placed.
  • the conventional beds and mattresses have a number of considerable disadvantages.
  • the wires, coil springs and conical helical springs which form a flat surface in unloaded state arecompressed when loaded by the weight of the human body whereby depressions are formed in the places subjected to the highest load. These depressions cause a positioning of the body which is not in keeping with its anatomy which means that the person who is sleeping or resting on the bed has to occupy an unnatural position which prevents true relaxation.
  • protecting blankets are necessary in order to prevent damage or soiling by the metal springs and Wires which might become rusty.
  • the protecting blankets are made of sackcloth and fillers which cause considerable dust and dirt.
  • Such blankets are unhygienic because they are seldom replaced and hardly ever cleaned. They often favor the accumulation of many bacteria. For this reason the conventional beds are completely unsuited for use in hospitals.
  • Another object of the invention is to provide a bed which meets the highest requirements in hygienic respect.
  • a further object is to provide a mattress which can be manufactured in a very simple manner by using only wire and which yet represents a highly resilient bed which is far superior to the conventional mattresses having conical helical springs.
  • Yet another object of the invention is to provide a bed the spring tension of which can be adjusted in a simple manner according to the weight placed thereon.
  • the invention provides a bedstead with a spring steel bottom, which comprises a spring steel gauze consisting of a plurality of longitudinal wires interlaced by several traverse wires arranged in pairs.
  • the distance between the individual longitudinal wires is relatvely small in comparison with the distance between the pairs of interlaced transverse wires.
  • the longitudinal wires as well as the transverse wires are corrugated at least at their points of intersection, but are preferably provided with vertical corrugations over their entire lengths.
  • the wires are provided with a sheathing made of synthetic plastics material.
  • each longitudinal wire are bent through about 3'60 in the formof a complete loop around the outermost transverse wires in such a manner that the transverse wire adjacent the outermost transverse wire in the region of each loop is arranged on the same side of the wire gauze as the free end portion of the loop.
  • several hooks engage around the two outermost transverse wires of the steel wire gauze, the hooks being connected to a flange of an angle piece the other flange of which is provided with several perforations which are engaged by screw bolts arranged on a crossbeam of a frame.
  • crossbeams which constitute angle pieces and have a slightly convex curvature in upward direction connect the ends of a pair of longitudinal beams preferably having slightly U-shaped cross sections, whereby the frame is formed.
  • Horizontal sliding feet are arranged on the ends f the vertical flange of the angle piece which is adjustable on the screw bolts by means of tightening nuts, the sliding feet resting on the lower bent-off portions of the U- shaped longitudinal beams. Reinforcing plates are provided on the sliding feet, which connect the ends of the flanges with the sliding feet.
  • FIG. 1 is a perspective view of a bedstead with a spring steel bottom according to the invention
  • FIG. 2 is a perspective view of a section of the spring steel gauze according to the invention.
  • FIG. 3 is a section through the spring steel bottom on the line III-III of FIG. 1;
  • FIG. 4 is a section on the line IV-IV of FIG. 3, and
  • FIGS. 5 and 6 are elevational views, on an enlarged scale, of the suspension of the spring steel gauze in unloaded and in loaded state.
  • the bedstead proposed by the invention consists of a frame 10 the-bototm side of which is provided with rigid supporting feet 11. At the end faces of the frame 10 parts 12 are arranged which limit the bedstead in longitudinal direction and may consist of plates made of wood or synthetic plastics material or cane work. The end faces of the frame 10 may, of course, also be provided with projections such as hooks, pins or the like which are insertable in corresponding recesses such as slots, holes or the like provided in the head and foot ends of a conventional bedstead.
  • the frame 10 itself consists of a pair of longitudinal beams 13 preferably of slightly U-shaped cross section and of a pair of crossbeams 14 having a slightly convex curvature in upward direction and connecting the longitudinal beams at the ends thereof.
  • the crossbeams 14 are preferably of L-shaped cross section and consist of angle pieces such as angle irons.
  • reinforcing elements 15 such as tubes, round irons, square irons, fiat irons or the like are arranged between the longitudinal beams 13 in the region of the crossbeams 14, the reinforcing elements being advantageously adapted for attaching thereto the supporting feet 11 of the bed.
  • the spring steel gauze consists of a plurality of spaced apart longitudinal wires 16 and of transverse wires 17 arranged in pairs at greater distances apart.
  • the longitudinal and transverse wires 16 and 17 are corrugated at least at their points of intersection but preferably have vertical corrugations over their entire lengths. By keeping the distances between the longitudinal wires 16 relatively small and maintaining larger distances between the transverse wires 17, socalled long meshes are formed in longitudinal direction.
  • the longitudinal and transverse wires 16 and 17 are provided with a sheating 18 of synthetic plastics material, as can be clearly seen from FIGS. and 6.
  • the spring steel gauze is designed in such a manner that at each of its sides facing the crossbeams 14 one pair of transverse wires 17 are arranged around which a plurality of hooks 19 engage. These hooks 19 are connected to a flange 20 of an angle piece 22 which has another flange 21 provided with a plurality of perforations through which screw bolts 23 arranged on the crossbeam 14 are passed.
  • the angle piece 22, the hooks 19 of which are acted upon by the tensile stress caused by the spring steel gauze, is maintained in a certain position with the aid of tightening nuts screwed on to the screw bolts 23 which tightening nuts may be embodied in hexagon nuts 24 as shown in FIG. 4.
  • the position of the angle piece 22 can, however, be changed by turning the nuts 24 on the screw bolts 23 whereby the tension in the spring steel gauze can be increased or decreased.
  • the pair of transverse wires 17 which are arranged at the opposite end of the spring steel gauze are engaged in a similar manner by hooks 27 which are connected to a flange of an angle piece 28. Also in this case the longitudinal wires 16 of the spring steel gauze are passed between the hooks 27.
  • the angle piece 28 is fixed to the respective crossbeam 14, e.g. by riveting or welding.
  • the invention further proposes to bend the end of each longitudinal wire 16 through about 360 in the form of a complete loop around the outermost transverse wire 17, the transverse wire next to the outermost transverse wire in the region of each loop being situated on the same side of the spring steel gauze as the free end portion of the wire loop.
  • This has the essential advantage that the free end of the wire loop presses against the hook 19 when the spring steel gauze is being tensioned or loaded and thus undoing of the loop is prevented.
  • the transverse wire 17 next to the outermost transverse wire 17 is pulled in the direction of the outermost transverse wire 17 whereby necessarily a deformation of that part of the longitudinal wire 16 which is situated between the outermost transverse wire 17 and the adjacent transverse wire is caused in such a manner that, as shown in FIG. 6, the loops formed by the longitudinal wires 16 engage around the outermost transverse wire at increasing angles.
  • the engagement of the outermost transverse wire 17 by the loops of the longitudinal wires 16 becomes stronger and safer. It is out of the question that the loops become undone.
  • the bedstead according to the invention having a spring steel bottom presents many advantages over the hitherto known embodiments of beds and mattresses.
  • the invention proposes a bed meeting the anatomical and physiological requirements and having a slightly convex curvature in upward direction, which curvature depending on the tension of the wires and the weight placed thereon yields to a more or less great extent. Even if the weight is extremely high the person using the bed rests on a fiat surface free of depressions.
  • the spring steel bottom proposed by the invention is extremely resilient due to the vertically corrugated wires extending in longitudinal direction, and it permits of an advantageous fiat resting position preventing the back from being bent through. This bed prevents injury to the interarticular disks because of a natural position of the spinal cord. Persons who already suffer from an injury to the interarticular disks will feel considerable relief when using this bed.
  • the bed proposed by the invention is extremely hygienic and above all particularly suited for hospitals, for the thin wires of the gauze which are provided with a sheathing of synthetic plastics material prevent an accumulation of dust. Further, it is very easy to clean them. It is to be emphasized that it is not required to use protecting blankets between the bottom of the bed and the mattresses because due to the sheathing of synthetic plastic material covering the wires, a contact of the mattresses with uncovered and rusty steel wires is prevented. Cumbersome spring-mattresses are no longer used as mattresses but thin mats of plastic foam such as foam rubber, polyurethane foam or the like are used which are very light, easy to clean, easy to replace and inexpensive to manufacture.
  • Another advantage resides in the use of spring steel wires when constructing the spring steel bottom of the bed instead of using the conventional conical helical springs and coil springs.
  • a bedstead comprising, in combination:
  • a spring steel gauze bottom member including a plurality of longitudinal spring steel wires interlaced by several transverse spring steel wires arranged in pairs,
  • transverse wires being mounted within said hook means at each end of the said frame member to thereby have an outermost transverse wire and an inner transverse wire engaged around by said hook means at each end of said bedstead,
  • said hook means includes an angle member carrying a plurality of hooks on a substantially horizontal portion and includes a substantially vertical portion, and further includes securing means to attach said angle member to said crossbeams at each end of said bedstead.
  • said securing means includes screw bolts mounted on said crossbeams and located to project through said perforations.
  • spring steel wires include vertical corrugations at least at the intersection of said longitudinal and transverse wires.
  • said spring steel wires includes a sheathing comprising a synthetic plastic material
  • said frame member includes longitudinal beams having U-shaped cross-sections
  • said crossbeams connect the ends of said longitudinal beams.
  • said angle member includes horizontal sliding feet located at the ends of said vertical portion and resting on a lower portion of said U-shaped longitudinal beams.
  • said angle member includes reinforcing elements mounted on said feet and being connected to at least one other portion of said angle member.

Landscapes

  • Bedding Items (AREA)
  • Wire Processing (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
US610406A 1966-01-27 1967-01-19 Bedstead with spring steel bottom Expired - Lifetime US3441961A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEN27966A DE1283463B (de) 1966-01-27 1966-01-27 Bettgestell
DE2306629A DE2306629A1 (de) 1966-01-27 1973-02-10 Bettgestell

Publications (1)

Publication Number Publication Date
US3441961A true US3441961A (en) 1969-05-06

Family

ID=43130728

Family Applications (1)

Application Number Title Priority Date Filing Date
US610406A Expired - Lifetime US3441961A (en) 1966-01-27 1967-01-19 Bedstead with spring steel bottom

Country Status (9)

Country Link
US (1) US3441961A (fr)
JP (1) JPS5224908B2 (fr)
AT (1) AT254445B (fr)
BE (1) BE693095A (fr)
CH (1) CH451431A (fr)
DE (2) DE1283463B (fr)
FR (1) FR1515269A (fr)
NL (2) NL6701245A (fr)
SE (1) SE328978B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838469A (en) * 1972-06-30 1974-10-01 Rawi Fab B V Undermattress
US4129908A (en) * 1977-11-07 1978-12-19 Sealy, Inc. Foundation unit with cushioned cross rails
US7636964B2 (en) * 2005-10-14 2009-12-29 FSB Management AB Bunk for a cab in a truck

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5189504U (fr) * 1975-01-09 1976-07-17
CH659768A5 (de) * 1983-04-26 1987-02-27 Ottfried Hoogstraal Liege.
KR950009849Y1 (ko) * 1993-08-10 1995-11-23 한영준 쿳션장치

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US185245A (en) * 1876-12-12 Improvement in spring bed-bottoms
US251630A (en) * 1881-12-27 Feedeeic a
US695607A (en) * 1900-11-08 1902-03-18 Alfred Guay Bed-spring.
US1163905A (en) * 1914-07-03 1915-12-14 William E Frank Bed-spring.
US1245060A (en) * 1916-06-15 1917-10-30 Stephen Stransky Spring-bottom for beds.
US2784773A (en) * 1953-11-23 1957-03-12 David L Rowland Weatherproof cushion

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1242960A (en) * 1916-01-18 1917-10-16 Frank A Hall Bed-bottom or the like.
US1340540A (en) * 1919-06-14 1920-05-18 George S Greenleaf Bed-bottom structure
GB251401A (en) * 1925-03-17 1926-05-06 Henry George Mortimer Improvements in spring mattresses
DE1871318U (de) * 1963-02-23 1963-05-02 Otto Adelmann Draht Und Kunsts Elastikplatte aus rundspiralgeflecht mit aufgezogener kunststoffolie.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US185245A (en) * 1876-12-12 Improvement in spring bed-bottoms
US251630A (en) * 1881-12-27 Feedeeic a
US695607A (en) * 1900-11-08 1902-03-18 Alfred Guay Bed-spring.
US1163905A (en) * 1914-07-03 1915-12-14 William E Frank Bed-spring.
US1245060A (en) * 1916-06-15 1917-10-30 Stephen Stransky Spring-bottom for beds.
US2784773A (en) * 1953-11-23 1957-03-12 David L Rowland Weatherproof cushion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838469A (en) * 1972-06-30 1974-10-01 Rawi Fab B V Undermattress
US4129908A (en) * 1977-11-07 1978-12-19 Sealy, Inc. Foundation unit with cushioned cross rails
US7636964B2 (en) * 2005-10-14 2009-12-29 FSB Management AB Bunk for a cab in a truck

Also Published As

Publication number Publication date
NL7402427A (fr) 1974-05-27
DE1283463B (de) 1968-11-21
DE2306629A1 (de) 1974-08-22
JPS5224908B2 (fr) 1977-07-04
NL152163B (nl) 1977-02-15
CH451431A (de) 1968-05-15
NL6701245A (fr) 1967-07-28
BE693095A (fr) 1967-07-03
FR1515269A (fr) 1968-03-01
JPS49105664A (fr) 1974-10-07
SE328978B (fr) 1970-09-28
AT254445B (de) 1967-05-26

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