EP4391869A1 - Support de matelas à encombrement réduit - Google Patents

Support de matelas à encombrement réduit

Info

Publication number
EP4391869A1
EP4391869A1 EP22758600.5A EP22758600A EP4391869A1 EP 4391869 A1 EP4391869 A1 EP 4391869A1 EP 22758600 A EP22758600 A EP 22758600A EP 4391869 A1 EP4391869 A1 EP 4391869A1
Authority
EP
European Patent Office
Prior art keywords
support
bracing element
mattress
rotatable
rotatable bracing
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.)
Pending
Application number
EP22758600.5A
Other languages
German (de)
English (en)
Inventor
Cornelis Franciscus De La Haye
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.)
Ubed BV
Original Assignee
Ubed 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 Ubed BV filed Critical Ubed BV
Publication of EP4391869A1 publication Critical patent/EP4391869A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/64—Travelling or camp beds
    • A47C17/70—Travelling or camp beds the bed frame being foldable about a horizontal axis
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C19/00—Bedsteads
    • A47C19/20—Multi-stage bedsteads; e.g. bunk beds; Bedsteads stackable to multi-stage bedsteads
    • A47C19/202—Stacking or nesting bedsteads

Definitions

  • Mattress supports with folding legs and a rigid base, such as a steel base plate are well known. Such mattress supports are intended for use in emergency situations or temporary applications in emergency shelters.
  • the disadvantage of these well-known mattress supports is that, due to the rigid nature of the steel base plate, a relatively thick top mattress must be used in order to provide sufficient comfort.
  • the rotatable bracing element(s) span(s) a transverse width AY between the longitudinal beams.
  • a central part of the rotatable bracing element forms an area which, in the unfolded operating position, is furthest below the level of the underside of the main frame, at a central internal distance AR along the bracing direction and in relation to the axis of rotation.
  • a ratio AR/AY between the central inner distance and the transverse width should satisfy 0 ⁇ AR/AY ⁇ 1/10, and preferably 1/20 ⁇ AR/AY ⁇ 1/10.
  • the rotatable bracing element with plastic deformation can be rotated to the folded rest position, in which case it is completely contained within the internal volume of the main frame of the mattress support.
  • the extension of the turned folded rotatable bracing element does not project below the top or bottom surface of the main frame.
  • the rotation angle of the rotatable bracing element between the unfolded and the folded positions is 90°. Because of the position of the rotatable bracing element in the folded position above the nominal plane tangent to the underside of the frame, which coincides with the level of the underside of the frame, several mattress supports can be stacked on top of each other. This advantageously results in a compact and stable stack of stacked mattress supports with a minimum stacking height.
  • the ground support element may also include a transverse connecting beam.
  • the rotatable bracing element and the ground support element(s) may be offset by their respective pivot axes in the longitudinal direction of the longitudinal beams, the distance between them being greater than the sum of the internal central distance of the rotatable bracing element and the length of the ground support element.
  • a ground support body constructed in this way may also be included entirely within the said space under the load-bearing surface.
  • the elastic support material is elastically deformed by an applied force in the direction parallel to the transverse beams towards the longitudinal beams, fixed to the longitudinal beams and the applied force removed.
  • This results in a mattress support in which the elastically deformed mattress support material exerts a total inward force equal to the force applied to elastically deform the support material, in an inward direction parallel to the transverse beams and orthogonal to the direction of the longitudinal beams.
  • the inward force is between 200 and 40000 N, more preferably between 1000 and 30000 N, yet more preferably between 10000 and 27500 N and most preferably between 20000-25000 N.
  • the transverse force with which the longitudinal beams are pulled towards each other by the flexible support material may increase further when a person rests on this flexible supporting surface.
  • the longitudinal and transverse beams are made of extruded aluminium profiles, and the rotatable bracing elements are formed of bent aluminium tubing.
  • the beams and rotatable bracing elements are made of steel.
  • the invention provides a combination of at least two mattress supports according to the first aspect.
  • This combination can be formed by means of a process for forming a stack from at least a first mattress support and second mattress support, wherein the process comprises: - rotating the rotatable bracing elements about the corresponding axes of rotation to bring the first and second mattress bearers into the folded stacking positions, and - placing the second mattress support with a lower side of the main frame on top of an upper side of the main frame of the first mattress support.
  • the underside of the main frame of an upper mattress support rests on an underlying mattress support, such as on the upper side of the main frame of an underlying mattress support.
  • the underside of an upper frame rests on elements that are still above the upper side of the underlying main frame, such as the attachment elements of the support.
  • Figure 1 shows a perspective view of a mattress support in the position of use according to one embodiment
  • Figure 2 shows a partial cross-section of a rotatable bracing element along its axis of rotation according to the design in Figure 1 ;
  • the longitudinal and transverse directions X, Y are primarily aligned with a supportive surface (in so far as the surface permits i.e. uneven ground), and the vertical direction Z is preferably along (i.e., opposite to) the direction of gravity as much as possible.
  • the rotatable bracing elements 13a-b In their operational position, the rotatable bracing elements 13a-b have a downward curving shape which determines a plastic deformation 16a-b.
  • the direction of plastic deformation for the rotatable bracing element 13b is indicated by RD
  • the direction of plastic deformation is indicated by R.
  • This plastic deformation 16 is shaped in such a way that the flexible support material surface 14 is not hindered from making a (limited) downward elastic deformation.
  • each rotatable bracing element 13 can be described by a function for the radially outward shape deviation from the respective axis of rotation A, which depends on the transverse position along the axis of rotation A between two opposite ends of the rotatable bracing element 13.
  • each rotatable bracing element 13 is bent away from the axis of rotation A near the ends by a component along the deformation direction +R, and further towards a central part bent back by an opposite (i.e. negative) component along the deformation direction -R.
  • both the ends of the traverse 13 and the central portion of the traverse 16 in this example run substantially parallel to the axis of rotation A.
  • the mattress support 10 is also provided with two ground support element 30a, 30b, with pivoting ground support bodies 31 a, 31 b.
  • These ground support bodies 31 enable, in the unfolded state, the main frame 29 to be positioned stably and at a non-zero support height AZO in relation to a supporting ground surface.
  • a height AZ1 of the main frame 29 with longitudinal beams 11 a, 11 b and transverse beams 12a, 12b is in the order of a few tens of millimeters, for example about 50 millimeters.
  • the support height AZO in this example is of the order of a few hundred millimetres, for example about 250 millimetres.
  • the rotatable bracing elements 13 extend in relation to the nominal lower surface of the main frame 29, with a distance in the centre of the order of several tens of millimetres.
  • FIG 2 shows a cross-sectional view of a rotatable bracing element 13 in the mattress support 10 according to Figure 1.
  • the rotation means 15 are provided with a bearing 20.
  • This bearing 20 is formed from a plug 21 attached to the rotatable bracing element 13, a pin 41 fixed in the longitudinal beam 11 and extending inwardly thereof towards the internal space 40, and a counter piece 22 lying like a collar around the pin 41 .
  • the plug 21 has a blind hole 42 in which the pin 41 is rotatably incorporated and an end face 23 which cooperates with and lies flat against a counter surface 24 of the counter piece 22.
  • the end face 23 and the counter surface 24 are held firmly together in the transverse directions ⁇ Y.
  • a suitable plastic (or metal) with a low friction coefficient, or interstitial lubricating agent By using a suitable plastic (or metal) with a low friction coefficient, or interstitial lubricating agent, the rotatable bracing element 13 can nevertheless be easily rotated around the axis of rotation A and relative to the main frame 29. In doing so, the walls of the blind hole 42 and the pivot pin 41 incorporated therein work together to prevent the end face 23 from moving in transverse directions (here X and Z) relative to the axis of rotation A.
  • the pivot means may be designed differently, for example, by using a through hole instead of a blind hole, by reversing the pin and hole, and/or by using roller bearings instead of glide bearings.
  • the end face 23 and the counter surface 24 have protrusions 25 or recesses 26 which, under the influence of the force exerted by the flexible support material, mutually engage, both in the operating position shown in Figure 2 and in the rest position.
  • the recesses 26 and the protrusions 25 can engage in a blocking manner in the retracted rest position and/or in the deployed operational position of the rotatable bracing element 13, and act as a blocking means for blocking the rotatable bracing element 13 in these positions.
  • a stable position of the rotatable bracing element 13 is achieved in both cases.
  • the flexible support material 14 is stretched between the longitudinal beams 11 , and is situated with a lower surface 17 at a plane distance AZ2 above a plane aligned with the underside (lower surface) 18 of the longitudinal beams 11 .
  • a block or plate-shaped internal space 40 is formed between the lower surface 17 of the flexible support material 14, the plane aligned with the underside 18 of the longitudinal beams 11 , and inward facing (opposing) sides of the longitudinal beams 11 .
  • This internal space 40 provides enough space to accommodate the folded rotatable bracing element 13, such that in its resting position it does not project beneath to the plane aligned with the undersides 18 of the longitudinal beams 11.
  • Figure 3 shows a combination of similarly shaped mattress supports 10a-10f in collapsed rest positions.
  • the protrusions 27 of an upper mattress support 10(i) can be stably accommodated in the recesses 28 of the immediately underlying mattress support 10(i-1 ).
  • a stable stack from mattress supports 10 is obtained.
  • Both the rotatable bracing elements 13 and the ground support bodies 31 of each mattress support 10 in the stack are, when collapsed, completely contained in the internal space 40 between the lower surface of the flexible support material 14 and the plane aligned with underside 18 of the longitudinal beams 11 of the corresponding mattress support.
  • This total height AZt is only equal to the sum of the thicknesses AZ1 of the longitudinal beams 11 and/or the transverse beams 12 of the mattress supports 10 stacked on top of each other, whichever the greater.
  • Figure 2 illustrates that the flexible support material 14 is at approximately the same height as the top sides 39 of the longitudinal beams 11 , so that the vertical internal space 40 is as large as possible.
  • Figures 4a-4c and 5a-5c show views of another embodiment of a mattress support 110 in the unfolded use position and the folded rest position, respectively.
  • Elements and features of the abovedescribed embodiment of the mattress support 10 may also be present in the mattress support 1 10 shown in Figures 4a-5c, and are not revisited here. Similar elements are indicated by similar reference numerals (same last two digits), but preceded by a 1 to distinguish the embodiment.
  • X first direction e.g. longitudinal direction
  • Y second direction e.g. transverse direction
  • Z third direction e.g. vertical direction

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

L'invention concerne un support de matelas (10) constitué de longerons (11a, 11b) se déployant à une certaine distance l'un de l'autre, de traverses (12a, 12b) reliées de manière rigide aux extrémités ou à proximité des extrémités des longerons, d'un matériau de support flexible (14) tendu entre les longerons et situé à une certaine distance au-dessus de la face inférieure des longerons, et d'au moins un élément de contreventement rotatif (13a, 13b) sous la surface du matériau de support flexible qui est chargé sous pression par la surface du matériau de support flexible. L'élément de contreventement rotatif peut être tourné entre une position opérationnelle dépliée dans laquelle l'élément de contreventement rotatif se déploie vers le bas à angle droit par rapport à la surface du matériau de support flexible pour permettre une déformation élastique de la surface du matériau de support flexible, et une position de repos pliée. L'élément de contreventement rotatif (13a, 13b) comprenant les moyens de rotation (15a, 15b) peut être au moins partiellement contenu dans l'espace défini entre la face inférieure du matériau de support flexible, la face inférieure des longerons et les surfaces internes des longerons se faisant face.
EP22758600.5A 2021-08-25 2022-08-23 Support de matelas à encombrement réduit Pending EP4391869A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2029050A NL2029050B1 (en) 2021-08-25 2021-08-25 Space-saving mattress support
PCT/NL2022/050484 WO2023027583A1 (fr) 2021-08-25 2022-08-23 Support de matelas à encombrement réduit

Publications (1)

Publication Number Publication Date
EP4391869A1 true EP4391869A1 (fr) 2024-07-03

Family

ID=78771103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22758600.5A Pending EP4391869A1 (fr) 2021-08-25 2022-08-23 Support de matelas à encombrement réduit

Country Status (3)

Country Link
EP (1) EP4391869A1 (fr)
NL (1) NL2029050B1 (fr)
WO (1) WO2023027583A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB532573A (en) 1939-09-08 1941-01-27 Bradsteds Ltd Improved combined bed, seat and stretcher
FR2666730B1 (fr) * 1990-09-17 1992-11-06 Forest Paul Couchette de relaxation empilable.
CN203524247U (zh) * 2013-10-16 2014-04-09 杭州师范大学 S形折叠沙滩床

Also Published As

Publication number Publication date
NL2029050B1 (en) 2023-03-17
WO2023027583A1 (fr) 2023-03-02

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