Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
  • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
  • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C21/00—Attachments for beds, e.g. sheet holders or bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
  • A47C21/02—Holders for loose bed elements, e.g. sheet holders; bed cover holders
  • A47C21/026—Pillow holders; Mattress holders
• • 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
• • 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
  • A47C31/12—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons
  • A47C31/123—Means, e.g. measuring means, for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C20/00—Head-, foot- or like rests for beds, sofas or the like
  • A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47C—CHAIRS; SOFAS; BEDS
  • A47C21/00—Attachments for beds, e.g. sheet holders or bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
  • A47C21/02—Holders for loose bed elements, e.g. sheet holders; bed cover holders
  • A47C21/022—Sheet holders; Bed cover holders
• • 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
  • A47C31/10—Loose or removable furniture covers
  • A47C31/105—Loose or removable furniture covers for mattresses

Definitions

• This invention relates generally to the field of adjustable beds and more particularly to a structure incorporating a mating tension member extending from a a support bar engaged on a surface of a mattress support element inset from an edge to the underside of the mattress adjacent a companion edge for tension the mattress to prevent "lift” in the mattress due to its rigidity when flexed by the articulating support elements.
• the mattress employed with an articulating bed is typically a dense foam construction for adequate support and comfort of the user. Due to the relative rigidity of the foam, when the bed is articulated the mattress tends to resist bending, at least to a degree, and rises from one or more support surfaces on the structure of the bed. This rising effect can be deleterious since relative support is lost beneath the elevated portion and addition of weight may cause a rapid shift in position which is undesirable. Additionally, accurate positioning of the bed is difficult since mattress position may shift.
• Prior art articulating bed systems employ rigid frame elements extending from the bed support structure at the foot of the mattress to retain the mattress over the articulated frame as disclosed in copending US Patent Application serial no. 12/154,509 filed on 05/23/2008 issued as US Patent 7930780 on 04/26/201 1 entitled ADJUSTABLE BED FRAME ASSEMBLY having a common assignee with the present invention. While effective in maintaining the longitudinal and lateral position of the mattress, these prior art devices may interfere with applying bedding to the mattress, particularly fitted sheets rendering making the bed somewhat difficult. Additionally, such retention devices may allow lateral motion of the mattress during change of articulated position.
• the embodiments disclosed herein overcome the shortcomings of the prior art by providing a mattress retention system for adjustable beds using a tubular fabric tension web received over a retention bar attached to a top surface of an element of an articulating support structure. Brackets for bar attachment are inset from a longitudinal edge and lateral edges of the articulating support structure element. The tubular fabric tension web is attached to the bottom surface of a mattress adjacent an edge to be restrained.
• tubular fabric tension web is stitched to a non-woven mattress cover adjacent a peripheral zipper surrounding the mattress edge.
• FIG. 1 is a top isometric view of an adjustable bed showing the mattress atop the support elements in an articulated position;
• FIG. 2 is top view block diagram of the device shown with the mattress removed and the mattress cover transparent for clarity;
• FIG. 3A is an isometric top view of the retainer bar as mounted to the foot support member;
• FIG. 3B is an isometric top view of the retainer bar removed from the brackets on the foot support member;
• FIG. 4A is an isometric top view of the retainer bar as mounted to the foot support member with the tubular fabric element installed;
• FIG. 4B is an alternative pictorial top view the retainer bar as mounted to the foot support member with the tubular fabric element installed;
• FIG. 5 is a side view demonstrating incorporation of the embodiments described for both a head portion and a foot portion of the articulating bed.
• FIG. 1 Embodiments shown in the drawings and described herein provide a mattress retention system for adjustable beds as shown in FIG. 1 wherein the mattress 10 rests atop an articulating support structure 12 extending from a support base 14.
• the articulating support structure 12 has multiple support sections adjustable to various angles including a foot support member 13.
• a tubular fabric tension web 16 is received over a retaining bar 17 mounted to the top surface 15 of the foot support member 13 with a brackets 18.
• the tubular fabric tension web 16 is attached to a mattress cover 20 near a longitudinal edge of a zipper 22 which surrounds the mattress cover for inserting the mattress into the cover.
• the mattress cover 20 is a non- woven fabric.
• a reinforced fabric layer 19 may be stitched into the mattress cover in an end region adjacent the longitudinal edge of the cover for additional support and an edge 21 of the tension web 16 stitched or otherwise attached to the reinforced fabric layer.
• the reinforcing fabric is approximately 4 inches in width.
• the retaining bar 17 is placed well inboard from a longitudinal edge 23 of the foot support member 13 and is captured in the tubular fabric tension web 16 as will be described in greater detail subsequently.
• the brackets 18 for mounting of the retaining bar 17 are positioned approximately 6.5 inches from the longitudinal edge of the foot support member 13 to allow sheets or other bedding to be tucked under the mattress at the longitudinal edge 23.
• the width of the tubular fabric tension web 16 extends across only a center portion of the overall width of the foot support member inset from the lateral edges 24 of the bed. For the embodiment shown a 30 inch width is employed for a double bed having an overall width of approximately 60 inches. [Para 1 9] As shown in FIGs.
• the retaining bar 17 is substantially "C" shaped with open ends received in the brackets 18. This configuration allows rotation of the retaining bar around an axis 30.
• the bar is sufficiently resilient to be flexed allowing the ends to be inserted in receiving bores in the brackets and retained when the bar is unflexed. Removed from the brackets as shown in FIG. 3B, the bar 17 may be inserted into the tubular fabric retaining web 16 prior to insertion into the brackets 18.
• Reinforced stitched zones 25a and 25b may be employed in the tubular fabric tension web 16 to provide additional strength for tensioning by the bar 16 (zone 25a) and for stitching to the mattress cover 22 (zone 25b).
• Placement of the associated brackets 18 for securing the bars 17 and associated tubular tension webs to the top surface 15 of support structure 12 is as previously described.
• Use of the tension webs in attachment to the mating elements creates tension in the mated system which results in a moment 33 about the axis 30 to urge the mattress head or foot into contact with the respective support surface.
• lateral restraint for the mattress may also be desired.
• the structure associated with the embodiments described above may also be applied along the lateral extents of the mattress to restrain the mattress from lifting.

Landscapes

• Health & Medical Sciences (AREA)
• Nursing (AREA)
• General Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Invalid Beds And Related Equipment (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (2)

Family

ID=51228187

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (9)

Family Cites Families (20)

• 2014
  • 2014-01-23 CN CN201480010781.0A patent/CN105228493A/zh active Pending
  • 2014-01-23 RU RU2015131320A patent/RU2624724C2/ru active
  • 2014-01-23 EP EP14742950.0A patent/EP2948026B1/en active Active
  • 2014-01-23 WO PCT/US2014/012682 patent/WO2014116790A2/en not_active Ceased
  • 2014-01-23 JP JP2015555262A patent/JP6176506B2/ja not_active Expired - Fee Related
  • 2014-01-23 US US14/161,999 patent/US9107782B2/en active Active
  • 2014-01-23 ES ES14742950T patent/ES2773977T3/es active Active

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