USRE48344E1 - Sleep system - Google Patents

Sleep system Download PDF

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Publication number
USRE48344E1
USRE48344E1 US15/697,747 US201715697747A USRE48344E US RE48344 E1 USRE48344 E1 US RE48344E1 US 201715697747 A US201715697747 A US 201715697747A US RE48344 E USRE48344 E US RE48344E
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United States
Prior art keywords
assembly
furniture
standalone
configuration
horizontal table
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.)
Active, expires
Application number
US15/697,747
Inventor
Blair Weiland
Steven Stieglitz
Anthony J. Warncke
Martin J. Krause, JR.
Joel D. Alberda
Donald E. Newfer
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.)
Sauder Manufacturing Co
Original Assignee
Sauder Manufacturing Co
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
Priority claimed from US13/168,438 external-priority patent/US9027178B2/en
Priority claimed from US13/528,499 external-priority patent/US9125496B2/en
Application filed by Sauder Manufacturing Co filed Critical Sauder Manufacturing Co
Priority to US15/697,747 priority Critical patent/USRE48344E1/en
Application granted granted Critical
Publication of USRE48344E1 publication Critical patent/USRE48344E1/en
Active legal-status Critical Current
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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/04Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/165Seating furniture changeable to beds by tilting or pivoting the back-rest with forward tiltable back-rest, e.g. back cushion
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B83/00Combinations comprising two or more pieces of furniture of different kinds
    • A47B83/04Tables combined with other pieces of furniture
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/04Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/163Seating furniture changeable to beds by tilting or pivoting the back-rest and a foot-rest
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/04Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/165Seating furniture changeable to beds by tilting or pivoting the back-rest with forward tiltable back-rest, e.g. back cushion
    • A47C17/1655Seating furniture changeable to beds by tilting or pivoting the back-rest with forward tiltable back-rest, e.g. back cushion forming top surface of the bed with non-rotatable seat cushion
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C17/00Sofas; Couches; Beds
    • A47C17/52Cabinet beds; Table beds, or like beds; Wardrobe beds
    • A47C17/62Table beds; Billiard table beds, or like beds
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/50Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/50Supports for the feet or the legs coupled to fixed parts of the chair
    • A47C7/506Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
    • A47C7/5066Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
    • A47C7/5068Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00Tables with tops of variable height
    • A47B9/20Telescopic guides

Definitions

  • the invention relates to furniture systems having the capability of converting between sofa and sleep surface configurations and, more particularly, furniture systems which may be adapted to healthcare environments for providing various environmental applications additional to sleeping and sitting, and providing such applications within a relatively small footprint.
  • Various furniture systems are known in the prior art which include the capability of converting between differing types of furniture configurations. For example, it is known in the art to provide for the capability of converting a furniture system in the form of a sofa to one which provides for a bed or other sleep surface.
  • many of the known systems have various disadvantages associated with their conversions between sofa and sleep surface configurations.
  • a number of convertible furniture systems include components which are useful with respect to only one of the configurations. Some of these systems include “fold out” components which provide for bed surfaces when the furniture system is in a sleep surface configuration, but do not require the bed surface component for any useful purpose when the furniture system is in the sofa configuration.
  • a number of convertible furniture systems include back supports which are used when the furniture system is in a sofa configuration.
  • the back support is retained in the same position as in the sofa configuration, and serves no useful purpose in the sleep surface configuration.
  • many of the known convertible furniture systems include relatively complex linkages for movement of various furniture components during conversion.
  • the complexity of these linkages can result in substantial expense and are often relatively more subject to breakdown or damage.
  • some linkages can present potential safety hazards.
  • complex linkages associated with known convertible furniture systems often include dangerous “pinch points” which can exist during linkage movement. Safety hazards associated with such linkage pinch points are exacerbated when the linkages are normally visible and physically accessible to children or others.
  • U.S. Pat. No. 6,904,628 generally describes a sofa bed having a frame with opposing arms, and a seat.
  • a subseat is hinged to the seat, and a connecting rod pivotably interconnects the subseat and the backrest.
  • Pairs of center legs and end legs are pivotably attached to the subseat and seat, respectively.
  • Mechanisms are provided for folding and unfolding the center and the end legs.
  • the configuration includes a leg-folding mechanism which is pivotably interconnected with the center and the end legs.
  • the frame, backrest, seat and subseat are configured so that the backrest, seat and subseat move from a folded position to an unfolded position.
  • the leg-folding mechanism includes a center leg mechanism and an end leg mechanism.
  • the center leg is pivotably interconnected with the subseat at a second pivot, with the second pivot being rearward of a first pivot when the sofa bed is in an unfolded position.
  • the center leg mechanism includes a brace which is pivotably connected with the center leg and with the seat.
  • the subseat and the seat are interconnected by means of a hinge.
  • the hinge includes a subseat plate fixed to the subseat.
  • the center leg is pivotably interconnected to the subseat plate at the second pivot.
  • Patella U.S. Patent Application Publication No. 2008/0148478 describes a sofa bed having a base structure with a series of mutually hinged frames.
  • the frames are supported by the base structure and support a series of padding elements.
  • a kinematic mechanism is utilized to change the positions of the frames.
  • the base structure includes a set of small legs, a spacer and a hinge plate consisting of two flat surfaces.
  • the hinge plate is fixed on the small leg which consists of two flat surfaces with a rectangular hole. The hole is tapped on one side to lodge the spacer.
  • An assembly procedure removes the clearance in the coupling between the hinge and the spacer, and obtains a perpendicular configuration between the spacer and the small leg.
  • Murphy, U.S. Pat. No. 7,549,182 discloses a seating unit having a frame and backrest section, with the backrest section having a cushion.
  • Body, hinge and foot sections share a common cushion, and a folding mechanism includes a series of pivotably interconnected links which are configured so as to move the backrest, body, hinge and foot sections between folded and unfolded positions.
  • the backrest, body, hinge and foot sections are horizontally disposed and serially aligned.
  • the backrest cushion and the common cushion face upwardly.
  • the backrest section In the folded position, the backrest section is upright, with the backrest cushion facing forwardly.
  • the body section is horizontally disposed, and the foot section overlies the body section.
  • the hinge section is vertically disposed and extends between the body and foot sections.
  • the common cushion is folded upon itself. A portion of the common cushion overlying the body section and a portion of the common cushion underlying the foot section are compressed against each other.
  • the body, hinge and foot sections each include a panel.
  • a fixed support hinge includes a flexible sheet member which is fixed to the body and hinge section panels.
  • a second support hinge which includes a flexible sheet member is fixed to the hinge and foot section panels.
  • an efficient and comfortable seating unit is incorporated within a furniture system which may be adapted for use in hospital patient rooms or other building structures where it is advantageous to provide a number of environmental functions, within relatively small footprints.
  • the invention includes a seating unit as a foundation, to which structure has been added which provides for desking and sleeping in one furniture unit having relatively efficient spatial requirements.
  • the furniture system essentially acts as a virtual “family unit” within a confined space, such as a hospital patient room.
  • the furniture system requires a relatively small and compact footprint which does not encroach on “working space” of a hospital room.
  • the furniture system in accordance with the invention includes convenient seating, while also providing for working space. Still further, in accordance with certain aspects of the invention, the furniture system can be readily converted from a seating position to a sleeping configuration.
  • the system can provide for integrated seating, work surface/desking, and sleeping configurations.
  • the furniture system can include integrated footrests and integrated storage areas.
  • the conversion from a seating position to a sleep configuration can occur within the structure's own footprint.
  • the sleep surface can be separate from the seating surface.
  • the conversion mechanisms for configuring and reconfiguring the furniture system can be concealed, such as within arms of the furniture system.
  • the seating configurations can include multiple positions, such as forward and sideways positions.
  • the work surface or desk associated with the furniture system in accordance with the invention can be converted, without the necessity of moving the work surface or desk out into the patient room.
  • the sleep system assembly is convertible between various environmental applications.
  • the assembly includes a supporting frame with a seat having an upper surface on which a user may sit when the assembly is in a sofa or sitting configuration.
  • At least one linkage mechanism is provided, with the linkage mechanism directly or indirectly connected to the frame, and adapted to move the sleep system assembly between the sofa configuration and others of the environmental applications.
  • a desk is positioned forwardly and extends in a horizontal plane when the sleep system assembly is in the sitting configuration.
  • the environmental applications include at least the sitting configuration, a sleeping configuration and a desking configuration.
  • a footprint of the assembly is maintained as a predetermined footprint independent of the particular environmental application of the assembly at any given time.
  • a back support is provided within the sofa configuration. The linkage mechanism is hidden from view at all times during operation and stationary position of the assembly.
  • the assembly is specifically adaptable between the sleep configuration and a desking application, and is also convertible between the sleep configuration and sitting configuration, and the sitting configuration and the desking application.
  • the work surface can be coupled to a back front surface. The work surface moves in unison with the back front surface when the assembly is moving between configurations. When the assembly is in the sleep configuration, the work surface is in a vertically oriented configuration. The work surface can be converted between an operable position and a non-operable position, without the necessity of moving outside of a footprint of the sleep system assembly when in either of the positions.
  • the work surface is positioned so as to not extend forwardly beyond a front vertical plane of the entirety of the assembly.
  • the work surface is capable of being stored between opposing seats of the assembly when the assembly is in the sleep configuration. In the sleep configuration, the work surface is fitted within opposing seats of the assembly.
  • the assembly When the assembly is in the sitting configuration, the assembly comprises pairs of bases and seats, configured so as to provide a spatial interior area between lateral sides of the seats and bases, with the seats and bases facing each other.
  • the users When in this configuration, and users are seated on the seats, the users can position their legs forwardly of a front vertical plane of the assembly or, alternatively, can position their legs in a sideways orientation, with their legs extending into the interior spatial area.
  • the assembly comprises at least one integrated storage area.
  • the assembly can also comprise at least one integrated footrest, with lever means for manipulating the footrest.
  • the work surface can be centered laterally between seats of the assembly, with a width which is smaller than the width of the spatial interior area.
  • FIG. 1 is a left-side perspective view of a first embodiment of a furniture system, with the furniture system illustrated in a sofa configuration, and having one or more retracted ottomans and a retracted drawer;
  • FIG. 2 is a right-side elevation view of the first embodiment of the furniture system shown in FIG. 1 , and showing a portion of the right-side of the furniture system cut away so as to illustrate one of the sleep system linkage mechanisms used with the furniture system;
  • FIG. 3 is a forward, perspective view of the sleep system linkage mechanism illustrated in FIG. 2 ;
  • FIG. 4 is a perspective view of the linkage mechanism shown in FIG. 3 , rotated 90 degrees in a horizontal plane relative to FIG. 3 ;
  • FIG. 5 is a front, elevation view of the linkage mechanism shown in FIG. 4 ;
  • FIG. 6 is a side, elevation view of the linkage mechanism shown in FIG. 5 , and illustrating the mechanism in a configuration corresponding to the furniture system being in a sofa configuration;
  • FIG. 7 is a rear, elevation view of the linkage mechanism shown in FIG. 6 ;
  • FIG. 8 is a view which can be characterized as a plan view of the linkage mechanism shown in FIG. 7 ;
  • FIG. 9 is a side, elevation view of the linkage mechanism shown in FIG. 8 , with the view directly opposing the side, elevation view of the linkage mechanism shown in FIG. 6 ;
  • FIG. 10 is an underside view of the linkage mechanism shown in FIG. 9 ;
  • FIG. 11 is a side, elevation view of the furniture system shown in FIG. 2 , with one of the linkage mechanisms shown within a cutout configuration, with the illustration similar to FIG. 2 but showing the furniture system and linkage mechanism in an “intermediate” position as the furniture system is moved between the sofa configuration and the bed or sleep surface configuration;
  • FIG. 12 is a side, elevation view of the furniture system shown in FIGS. 2 and 11 , with one of the linkage mechanisms shown in a cutout configuration, and showing the furniture system, relative to FIG. 11 , in a further transient position as the system is converted from the sofa configuration to the bed or sleep surface configuration;
  • FIG. 13 is a side, elevation view of the furniture system shown in FIG. 12 , and showing the system in further movement toward a bed or sleep surface configuration, with the back cushions moving further rearwardly;
  • FIG. 14 is a side, elevation view of the furniture system shown in FIG. 13 , and showing the furniture system in a final bed or sleep surface configuration, and further showing the position of the primary mechanism lever as it contacts a stop;
  • FIG. 15 is a left-side perspective view of a further embodiment of a furniture system in accordance with the invention, and showing the system in a sofa configuration, with recessed wood cap arms and an open base;
  • FIG. 16 is a left-side perspective view of the furniture system shown in FIG. 15 , but showing the high back support and the furniture system in a sleep configuration;
  • FIG. 17 is a left-side perspective view of a further embodiment of a furniture system in accordance with the invention, showing the system in a sleep position and having recessed wood cap arms with a continuous upholstered panel;
  • FIG. 18 is a left-side perspective view of the furniture system shown in FIG. 17 , but showing the furniture system in a sofa position;
  • FIG. 19 is a left-side perspective view of a further embodiment of a furniture system in accordance with the invention, with the illustration showing the furniture system in a sofa position and having recessed wood insert/wood cap arms with a continuous upholstered panel;
  • FIG. 20 is a left-side perspective view of the furniture system shown in FIG. 19 , but showing the system in a sleep configuration;
  • FIG. 21 is a left-side perspective view of a further embodiment of a furniture system in accordance with the invention, with the system shown in a sleep position and having recessed wood panel/wood cap arms with an open base;
  • FIG. 22 is a left-side perspective view of a furniture system in accordance with FIG. 21 , but showing the system in a sofa configuration;
  • FIG. 23 is a left-side perspective view of a further embodiment of a furniture system in accordance with the invention, illustrating the furniture system in a sofa position and having recessed wood panel/wood cap arms with one or more retracted ottomans and a retracted drawer;
  • FIG. 24 is a left-side perspective view of the furniture system shown in FIG. 23 , but showing the system in a sleep configuration;
  • FIG. 25 is a left-side perspective view of a further embodiment of a furniture system, illustrating the system in a sofa configuration and having recessed wood cap arms, with a drawer in a retracted position and an ottoman in an extended position;
  • FIG. 26 is a left-side perspective view of the furniture system shown in FIG. 23 , but showing an ottoman in an extended position;
  • FIG. 27 is a left-side perspective view of a further embodiment of a furniture system, illustrating the furniture system in a sofa configuration and having upholstered arms with a retracted drawer and an extended ottoman;
  • FIG. 28 is a left-side perspective view of the furniture system shown in FIG. 27 , but with the ottoman in a retracted position;
  • FIG. 29 is a left-side perspective view of the furniture system shown in FIG. 28 , but showing the system in a sleep configuration;
  • FIG. 30 is a side sectional view of an ottoman connected to a furniture system in accordance with the invention, and showing the ottoman in an extended position;
  • FIG. 31 is a front, elevation view of a furniture system in accordance with the invention, and showing the use of a desk and a sitting or sofa configuration;
  • FIG. 32 is a front, elevation view of the furniture system shown in FIG. 31 , but showing the system in a sleep configuration;
  • FIG. 33 is a right-side perspective view of the furniture system shown in FIG. 31 ;
  • FIG. 34 is a right-side perspective view of the furniture system shown in FIG. 31 , but showing the system in a position substantially half way between a sitting configuration and a sleep configuration;
  • FIG. 35 is a right-side perspective view of the furniture system shown in FIG. 31 , with the system in the configuration shown in FIG. 32 ;
  • FIG. 36 is a right-side perspective view of a further embodiment of a furniture system in accordance with the invention, with the embodiment showing a lever for purposes of manipulating an integrated footrest or ottoman;
  • FIG. 37 is a right-side perspective view of the furniture system shown in FIG. 36 , but with the system having the ottoman in an extended position;
  • FIG. 38 is a right-side perspective view of a still further embodiment of a furniture system in accordance with the invention, showing a system having an ottoman in a retracted position, and a storage drawer in a closed position;
  • FIG. 39 is a right-side perspective view of the furniture system shown in FIG. 38 , but showing the ottoman in an extended position;
  • FIG. 40 is a right-side perspective view of a still further embodiment of a furniture system in accordance with the invention, with the system having a pair of storage drawers, shown in retracted positions;
  • FIG. 41 is a right-side perspective view of the furniture system shown in FIG. 40 , but showing the system in a sleep configuration;
  • FIG. 42 is a front, elevation view of the sleep system shown in FIG. 40 , and showing the system in a sitting configuration;
  • FIG. 43 is a front, elevation view of the furniture system shown in FIG. 40 , but showing the system in a sleep configuration as also shown in FIG. 41 ;
  • FIG. 44 is a right-side perspective view of yet another embodiment of a furniture system in accordance with the invention, showing the system as having left and right-side bases and seats, along with a center base and seat;
  • FIG. 45 is a right-side perspective view of the furniture system shown in FIG. 44 , but showing the system in an orientation which is substantially half way between a sitting configuration and a sleep configuration;
  • FIG. 46 is a right-side perspective view of the furniture system shown in FIG. 44 , but showing the system in a sleep configuration;
  • FIG. 47 is a front, elevation view of the furniture system shown in FIG. 44 , and showing the system in a sitting configuration;
  • FIG. 48 is a front, elevation view of the furniture system shown in FIG. 44 , and showing the system in a sleep configuration;
  • FIG. 49 is a side, elevation view of the furniture system shown in FIG. 1 , with one of the linkage mechanisms shown in a cutout configuration and showing the system in a sitting configuration;
  • FIG. 50 is a side, elevation view of the furniture system shown in FIG. 49 , but showing the system as it initially moves away from the sitting configuration;
  • FIG. 51 is a right-side elevation view of the furniture system shown in FIG. 49 , and showing still further movement of the system away from the sitting configuration and toward the sleep configuration;
  • FIG. 52 is a right-side elevation view of the furniture system shown in FIG. 49 , but with further movement toward the sleep configuration;
  • FIG. 53 is another right-side elevation view of the furniture system shown in FIG. 49 , as the system nears its position in a sleep configuration;
  • FIG. 54 is a right-side perspective view of the furniture system shown in FIG. 49 , with the system in a final sofa, bed or sleep configuration;
  • FIG. 55 is a right-side perspective view of a further embodiment of a furniture system in accordance with the invention, and expressly showing an adjustable table or desk assembly in a lowered configuration, with the furniture system having integrated footrests or ottomans levers for manipulating the footrests and push button actuator for initiating motion of the back inner for presentation and conversion to a sleep surface;
  • FIG. 56 is a right-side perspective view of the furniture system shown in FIG. 55 , with the adjustable table assembly in a lowered position, and the inner back in a lowered sleep surface configuration;
  • FIG. 57 is a right-side elevation view of the embodiment of the furniture system shown in FIG. 55 , and showing a portion of the right side of the furniture system cut away so as to illustrate one of the sleep system linkage mechanisms used with the furniture system, with the sofa configuration in a normal seating position, the conversion mechanism latch and the inner back in an upright configuration;
  • FIG. 58 is a side, elevation view of the furniture system shown in FIG. 57 , and showing the sofa configuration in an initiating position for conversion to sleep status, where actuation of the push button actuator will open a latch and release a mechanism latch pin, while the assist cylinder will initiate motion of the inner back;
  • FIG. 59 is a right-side elevation view of the furniture system shown in FIG. 58 , with the inner back in an intermediate position between the upright sofa configuration and a sleep configuration;
  • FIG. 60 is a right-side elevation view of the furniture system shown in FIG. 59 , and further showing the inner back in a further movement toward a sleep configuration, and also showing the approximate position at which an end user can continue conversion of the furniture system by exerting forces forwardly on the inner back;
  • FIG. 61 is a right-side elevation view of the furniture system shown in FIG. 60 , and further showing the sofa configuration and the conversion mechanism in a fully positioned sleep configuration, with the entirety of the sleep surface presented in a horizontal configuration when the inner back is resting on the seat cushions;
  • FIG. 62 is a right-side elevation view of a close up of a cutaway of one portion of the arm assembly, showing elements such as the assist cylinder housing, mechanism assist link, mechanism back link and similar structures;
  • FIG. 63 is a right-side elevation view of a close up of a cutaway portion of the arm assembly, showing various elements of the back conversion mechanism in various stages of deployment, with FIG. 63 showing the positioning of the arm assembly when the inner back is in an intermediate position;
  • FIG. 64 is a right-side close up of an elevation view of a cutaway portion of the arm assembly, showing the back conversion mechanism closer to the sleep configuration;
  • FIG. 65 is a right-side elevation view of a close up of the arm assembly in a cutaway configuration, showing the back conversion mechanism after further movement of the inner back;
  • FIG. 66 is a right-side elevation view of a close up of a cutaway portion of the arm assembly, showing full movement of the back conversion mechanism;
  • FIG. 67 is a side, elevation view of a portion of the back mechanism in a standalone format, showing the mechanism front link and interconnected links;
  • FIG. 68 is a front, elevation view of interconnected elements of the back mechanism shown in a standalone format
  • FIG. 69 is a plan view of the elements of the back mechanism shown in FIG. 70 ;
  • FIG. 70 is a side, elevation view of the back linkage mechanism shown in FIG. 71 , but shown in an opposing image;
  • FIG. 71 is a further side, elevation view of the linkage mechanism shown in FIG. 69 , with the back mechanism shown in a standalone configuration;
  • FIG. 72 is a right-side front perspective view of the linkage mechanism shown in FIGS. 69 and 72 ;
  • FIG. 73 is a left-side front perspective view of the linkage mechanism shown in FIG. 73 ;
  • FIG. 74 is a partial, front elevation view of the adjustable table assembly in a lowermost, down or “seat” position
  • FIG. 75 is a right-side front perspective view of the furniture system shown in FIG. 55 , but showing the adjustable table in a middle or “arm” position;
  • FIG. 76 is a right-side front perspective view of the furniture system shown in FIG. 76 , but showing the adjustable table mechanism in an uppermost or “table” or “top” position;
  • FIG. 77 is a partial underside view in isolated format of the adjustable table in a down position
  • FIG. 78 is a right-side perspective view of the adjustable table mechanism, with the mechanism being in a position for the table to be at an uppermost or top height;
  • FIG. 79 is a right, front perspective view of the adjustable table mechanism shown in FIG. 78 , but shown with the mechanism in a position which provides for a middle level or “arm” height for the table;
  • FIG. 80 is a right-side elevation view of the adjustable table mechanism shown in FIGS. 78 and 79 , and further showing the position of the mechanism for the table to be at a “seat” height, or lowermost position;
  • FIG. 81 is a front, elevation view of the adjustable table mechanism shown in FIG. 80 , and further showing the mechanism at a position to provide for a middle level or arm height for the table;
  • FIG. 82 is a right-side, front perspective view of the adjustable table mechanism shown in FIG. 81 , and showing the table mechanism in a position for the table to be at a “seat” height, or lowermost position;
  • FIG. 83 is a plan view of the adjustable table mechanism shown in FIG. 82 , and further showing the mechanism at a position which presents an uppermost or full up height for the table;
  • FIG. 84 is a front, elevation view of the adjustable table mechanism shown in FIG. 83 , and further showing the mechanism for presenting the table height at an uppermost or full up position;
  • FIG. 85 is a front, elevation view of the adjustable table mechanism shown in FIG. 84 , and further showing the mechanism in a position that presents the table at a middle level or “arm” height;
  • FIG. 86 is a front, elevation view of the adjustable table mechanism shown in FIG. 85 , and in a position to present the seat at a lowermost or “full down” position;
  • FIG. 87 is a plan view of the adjustable table mechanism shown in FIG. 86 , and showing the positioning of the tabletop support assemblies;
  • FIG. 88 is a right-side, front and perspective view of a cutaway portion of the conversion mechanism associated with one of the furniture system arms;
  • FIG. 89 is a front, elevation view of the portion of the furniture system showing FIG. 88 ;
  • FIG. 90 is a plan view of the furniture system shown in FIG. 88 ;
  • FIG. 91 is a front, elevation view of the table and adjustable table mechanism, showing the table in a mid level position;
  • FIG. 92 is a front, elevation view of the adjustable table mechanism shown in FIG. 91 , but showing the table in an uppermost or “top” position;
  • FIG. 93 is a right, elevation view of a footrest and mechanism for adjustable of the footrest
  • FIG. 94 is a right, front perspective view of the foot assembly shown in FIG. 93 ;
  • FIG. 95 is a left-side elevation view of the furniture system shown in FIG. 94 , when the drawer assembly is extended;
  • FIG. 96 is a left-side, front perspective view of the furniture system shown in FIG. 95 , with the drawer assembly extended and the table in a lowermost position;
  • FIG. 97 is a left-side elevation view, shown in a partially cutaway portion so as to illustrate the leveling mechanism for the adjustable table mechanism
  • FIG. 98 is a rear, perspective view of the furniture system shown in FIG. 97 , and further showing details of the table mechanism leveling system;
  • FIG. 99 is a rear, perspective view of a portion of the furniture system shown in FIG. 98 , and further showing the configuration of the frame support bracket.
  • furniture systems in accordance with the invention have the capability of converting what is characterized as a “sofa” or “seat” or “sitting” configuration, to a “bed” or “sleep surface” or “sleep” configuration.
  • example embodiments of linkage mechanisms are disclosed herein for purposes of converting the furniture systems between the configurations, it should be emphasized that furniture systems in accordance with various principles of the invention are not limited to any specific type of linkage mechanism. That is, various linkage mechanisms can be utilized without departing from the primary novel concepts of the invention.
  • the furniture systems in accordance with the invention provide a highly efficient and compact seating unit as a foundation, and that includes the combination and addition of structures to meet the needs of “desking” and sleeping into a single space-efficient furniture unit. With such a unit, a virtual “family room” can be provided within a confined space, such as a hospital patient room.
  • furniture systems in accordance with certain aspects of the invention, and as disclosed in the embodiments herein can include integrated footrest and storage facilities, as well as multiple seating positions. Further, the desking or work surface areas can be positioned in functional configurations, without such work surfaces extending outwardly from the basic footprint of the furniture system.
  • FIGS. 31-54 example furniture systems utilizing linkage mechanisms to convert the systems between sofa and sleep configurations are described herein and illustrated in FIGS. 1-30 .
  • FIGS. 1-30 and described herein were previously described in a commonly owned provisional patent application titled “SLEEP SYSTEM MECHANISM” filed Dec. 14, 2009, and identified as U.S. Provisional Patent Application Ser. No. 61/286,285.
  • certain concepts associated with the use of a table or desk associated with the sleep system assembly were disclosed and claimed in U.S. patent application Ser. No. 13/168,438 filed Jun. 24, 2011.
  • FIG. 1 illustrates the furniture system 100 in a left-side perspective view.
  • the system 100 is shown in the “sofa” configuration.
  • FIG. 2 is a side, elevation and partially “cut away” view of the furniture system 100 shown in FIG. 1 , again with the system in a sofa configuration.
  • the furniture system 100 can include a lower base 102 having any of a number of various configurations.
  • the lower base 102 is connected to other structural components through a connecting frame 104 .
  • the base 102 and connecting frame 104 can be structured in any of a number of various configurations.
  • Integral with or otherwise secured to the lower base 102 are a series of front legs 106 and rear legs 108 (only one of the rear legs 108 being shown in FIGS. 1 and 2 ). Upstanding adjacent the front legs 106 are a pair of front corners 110 . Located at the rear of the furniture system 100 and extending upwardly from the rear legs 108 is a stationary furniture back 112 . Secured to the front of the stationary furniture back 112 adjacent the lateral edges thereof are a pair of sides 114 . The sides 114 extend forwardly and can include corresponding arms or armrests 116 positioned on the top of the sides 114 .
  • the furniture system 100 can also include a stationary high back support 118 extending upwardly from the stationary furniture back 112 .
  • the stationary high back support 118 can be positioned above the stationary furniture back 112 and secured through the use of a pair of support mounts 119 .
  • the overall shape and structural configuration of the stationary high back support 118 , support mounts 119 , and stationary furniture back 112 are best illustrated in drawings which show furniture system embodiments in a sleep or bed configuration, such as FIG. 16 .
  • the furniture system 100 also includes a movable high back cushion 120 .
  • the movable high back cushion 120 with the system 100 in a sofa configuration, can rest against the stationary high back support 118 as expressly shown in FIG. 2 .
  • the movable high back cushion 120 can include a handle 122 accessible to the user.
  • a user can be positioned in the front of the furniture system 100 and can pull forwardly on the handle 122 so as to initiate movement of the system 100 from a sofa configuration to a sleep or bed configuration.
  • an intermediate back cushion 124 Coupled to the movable high back cushion 120 at the lower portion thereof is an intermediate back cushion 124 .
  • the intermediate back cushion 124 can be somewhat angled relative to vertical when the system 100 is in the sofa configuration. Coupling between the movable back cushion 120 and the intermediate back cushion 124 can be provided through the use of a fabric hinge 126 .
  • the fabric hinge 126 can be configured so as to secure together the back cushion 120 and back cushion 124 , while allowing some relative movement there between when the furniture system 100 is moved from the sofa configuration to the sleep or bed configuration.
  • the furniture system 100 also includes a seat cushion 128 , shown in both FIGS. 1 and 2 . As will be apparent from further description herein, the seat cushion 128 remains stationary during conversion movement of the furniture system 100 between the sofa configuration and the bed or sleep surface configuration.
  • the system 100 can include one or a pair of extendable and retractable integrated ottomans 130 .
  • the ottomans 130 are shown in a retracted configuration in FIG. 1 , and are positioned below the seat cushion 128 on opposing sides of the system 100 .
  • the ottomans 130 will be subsequently described herein, primarily with respect to FIGS. 25, 26 and 27 .
  • the furniture system 100 can also include an extendable and retractable drawer 132 . As shown in FIG. 1 , the drawer 132 can be located below the seat cushion 128 and intermediate the ottomans 130 .
  • FIG. 1 illustrates the drawer 132 in a retracted position.
  • the furniture system 100 can also include a pair of linkage mechanisms 134 .
  • FIG. 2 illustrates one of the linkage mechanisms 134 .
  • the structure and functional operation of the linkage mechanisms 134 will be described in subsequent paragraphs herein with respect to FIGS. 2-14 .
  • the drawings illustrate only one of the linkage mechanisms 134 , and the subsequent description herein will primarily be directed only to a single linkage mechanism 134 . However, both of the linkage mechanisms 134 will operate in tandem and are structurally and functionally equivalent.
  • Each of the linkage mechanisms 134 is configured and packaged so as to exist within the interiors of each of the sides 114 below the arms 116 . Positioning the linkage mechanisms 134 in these “hidden” interiors essentially eliminates a safety hazard which exists with respect to other linkage systems which may have physically accessible “pinch points” and other structures of potential harm.
  • FIG. 2 illustrates one of the linkage mechanisms 134 as coupled to the furniture system 100 and secured within one of the sides 114 .
  • FIGS. 3-10 illustrate the linkage mechanism 134 in a “stand alone” configuration, with each of the illustrations showing the linkage mechanism 134 in various orientations. In each orientation, the linkage mechanism 134 is illustrated in the configuration shown in FIG. 2 , which corresponds to the furniture system 100 being in a sofa configuration.
  • the linkage mechanism 134 includes a mechanism base plate 136 having an elongated configuration as illustrated in each of FIGS. 2-10 .
  • the mechanism base plate 136 essentially remains stationary during functional operation of the linkage mechanism 134 as the furniture system 100 moves between the sofa position and the sleep or bed position.
  • the mechanism base plate 136 is fixedly secured to the inner portion of a corresponding side 114 at frame connection points 140 .
  • the mechanism base plate 136 includes three frame connections points 140 .
  • the connection points are essentially located at the ends of the base plate 136 and one connection point 140 is located adjacent the center area of base plate 136 .
  • the base plate 136 can be secured to the furniture system side 114 at the frame connection points 140 through a series of three plastic spacer bushings having flat head bolts (and associated T-nuts) inserted therethrough.
  • the plastic spacer bushings can be 0.80 inches thick, with the bolts each being 5/16 inches in size.
  • the plastic spacer bushing which is associated with the frame connection point 140 located at one end of the base plate 136 is identified not only with a numerical reference 140 , but with numerical reference 142 .
  • the plastic spacer associated with this particular connection points 140 , 142 will function as a stop for the linkage 148 (shown in FIG. 14 ) when the furniture system 100 is moved to a sleep position.
  • FIG. 2 is illustrating the system 100 in the sofa position.
  • the linkage mechanism 134 also includes a primary mechanism lever 138 having an elongated configuration as also shown in FIGS. 2-10 . Front and rear views of the primary mechanism lever 138 can best be seen in FIGS. 6 and 9 .
  • the primary mechanism lever 138 has an elongated configuration and is pivotably coupled to the mechanism base plate 136 at a mechanism hinge point 144 .
  • the primary mechanism lever 138 can be characterized as one of two moving levers which govern the path of the intermediate back cushion 124 during movement in converting between sofa and bed or sleep surface configurations.
  • the opposing terminating end includes a pivot connection referenced as the main hinge point 146 .
  • the primary mechanism lever 138 can be characterized as linking this main hinge point 146 to the sofa frame or side 114 through the mechanism base plate 136 .
  • the linkage mechanism 134 further includes a secondary mechanism lever 148 , again primarily shown in FIGS. 2-10 .
  • the secondary mechanism lever 148 controls the rotational arc of the back cushions 120 , 124 as they move between sofa and bed configurations.
  • the secondary mechanism lever 148 is connected to the primary mechanism lever 138 at the main hinge point 146 through what is characterized as a mechanism control link 150 .
  • the mechanism control link 150 can be characterized as being locked into position relative to the back cushion 124 . That is, the relative orientations of the link 150 and back cushion 124 remain the same during movement.
  • the secondary mechanism lever 148 is hinged to the mechanism control link 150 at the hinge point 152 illustrated in the drawings.
  • the mechanism control link 150 is particularly shown in its entirety in FIG.
  • the linkage mechanism 134 also includes a mechanism drive shaft 158 .
  • the mechanism drive shaft 158 has a cylindrical and elongated configuration. One end of the mechanism drive shaft 158 is secured to one end of the second angled section 156 of the mechanism control link 150 .
  • the drive shaft 158 can be press fitted or otherwise secured to the mechanism control link 150 in any suitable manner. As further shown in a number of the drawings, including FIG.
  • a mechanism connection plate 160 is fixedly secured to an outer surface of the mechanism drive shaft 158 .
  • the mechanism connection plate 160 can be rectangular in configuration, with its elongated dimension running axially along the outer surface of the mechanism drive shaft 158 .
  • the connection plate 160 can be secured to the drive shaft 158 by any suitable means, including weldments and the like.
  • the inner portion of the side 114 shown therein includes a cut out portion in the form of a curvilinear clearance slot 162 .
  • the clearance slot 162 acts so as to provide for what could be characterized as minimum clearance for other components so as to avoid the occurrence of any pinch points associated with the sleep mechanism.
  • the connection plate 160 can be appropriately secured to these components of the system 100 .
  • apertures 164 are formed through the connection plate 160 so as to provide the capability of securing the connection plate 160 to other components of the furniture system 100 through screws or other suitable connecting means.
  • the connection plate 160 can be secured through the use of 5/16 inch buttonhead bolts, with corresponding T-nuts.
  • FIG. 2 illustrates the furniture system 100 in a sofa configuration.
  • the user can pull forward on the top of high movable back cushion 120 through the handle 122 (the handle 122 is illustrated in FIG. 1 ).
  • the primary mechanism lever 138 linking the main hinge point 146 to the frame of the furniture system 100
  • the pulling forces exerted on the high movable bed cushion 120 will cause the main hinge point 146 to move upwardly and forwardly. This movement is particularly shown in FIGS. 11, 12 and 13 .
  • this movement of the main hinge point 146 upwardly and forwardly permits the back cushions 120 , 124 to also move upwardly and rotate forwardly in a manner so as to “clear” the seat cushion 128 .
  • the intermediate back cushion 124 is permitted to clear the seat cushion 128 without interfering with the stationary furniture back 112 .
  • FIGS. 12 and 13 show the back cushion 124 clearing the seat cushion 128 , with corresponding clearance of the stationary furniture back 112 .
  • the secondary mechanism lever 148 controls the rotational arc of the back cushion 124 . As illustrated in part in FIG.
  • the secondary mechanism lever 148 is in a substantially horizontal plane.
  • the rotational arc of the secondary mechanism lever 148 and the back cushion 124 is initially upward. This upward movement provides for the requisite lift so as to clear the seat cushion 128 .
  • the high movable back cushion 120 provides not only seating comfort when in the sofa configuration, but also provides a relatively large sleep surface when in the sleep or bed configuration. This occurs in substantial part because the particular motion of the system mechanism allows the lower “hidden” portion of the back to be pulled out from behind the seat cushion, and to therefore be utilized as part of a sleep surface.
  • the fabric hinge 126 has allowed a gap or a spacing 166 to be formed between the high movable back cushion 120 and the intermediate back cushion 124 . This capability of exhibiting this spacing 166 provided by the fabric hinge 126 permits the back of the high movable back cushion 120 and the back of the intermediate back cushion 124 to locate in the same, level horizontal plane.
  • the fabric hinge 126 allows this horizontal plane configuration to be achieved, while also allowing a somewhat angular orientation to exist between the cushions 120 , 124 when the furniture system 100 is in the sofa position as shown in FIG. 2 .
  • the fabric hinge 126 permits articulation of the back cushions 120 , 124 .
  • the interface between the height and angle of the seat cushion, and the front sides of the two back cushions also plays a role in achieving the advantageous horizontal, planar sleep surface.
  • the secondary mechanism lever 148 can essentially be characterized as being oriented beyond center. With this configuration, the secondary mechanism lever 148 will essentially support the sleep surface formed by the back cushions 120 , 124 , with the back cushion 124 located in part within the area which overhangs the seat cushion 128 . That is, downwardly directed forces exerted on the back cushion 124 within this area which overhangs the seat cushion 128 will essentially be translated to the mechanism 142 through the primary mechanism lever 138 and the coupling to the secondary mechanism lever 148 . Movement will essentially be stopped when the secondary mechanism lever 148 abuts the spacer associated with the frame connection point 142 , which essentially acts as a third attachment for the mechanism base plate 136 .
  • the linkage mechanisms 134 can be confined within the sides 114 of the system 100 . Accordingly, there is an aesthetically favorable “clean” look to the sides of the system 100 , with no linkage mechanisms 134 being visible. Also, the linkage mechanisms 134 do not exhibit any physically accessible or visual pinch points which can present a safety hazard. In this regard, the clearance slot 162 is hidden from view by the back and sufficient distance is provided between the slot 162 and the mechanism drive shaft 158 and mechanism connection plate 160 so as to avoid any pinch points which may be associated therewith. Further, with the linkage mechanisms 134 , movement between sofa and sleep configurations is highly controlled, relatively error-proof, and requires only a “simple” path of motion.
  • the reference to the “simple” or “single” path of motion refers to the required motion of the user. That is, to operate the furniture system 100 , the user does not have to exert forces in multiple directions, take multiple stances or otherwise require any complex body movements.
  • the operational activities required by the user are essentially of minimal effort and can also be characterized as being “intuitive” for activities associated with converting an apparatus between a sofa position and a bed position.
  • areas which can be characterized as “cleanouts” are provided at interfaces between the seat cushion 128 and the intermediate back cushion 124 . These cleanout spaces also exist between the movable back cushions 120 , 124 and the stationary furniture back 112 .
  • the formation of these spatial areas provides for allotted space for dirt and the like to fall (or to be pushed through) directly to a floor surface below the furniture system 100 . This is a feature which can be particularly advantageous in settings such as health care facilities and areas of public access.
  • the system 100 is shown in FIG. 1 with a pair of extendable and retractable ottomans 130 positioned on opposing sides of the front of the lower portion of the furniture system 100 .
  • the ottomans 130 are shown in FIG. 1 in a retracted position.
  • a drawer can also be incorporated within the furniture system 100 , such as the extendable and retractable drawer 132 positioned intermediate the ottomans 130 .
  • the drawer 132 is also shown in a retracted position.
  • the drawer 132 includes a handle 168 for purposes of extending and retracting the drawer 132 .
  • manually operable actuator levers 170 can be located on the outer surfaces of the opposing sides 114 of the furniture system 100 (only one of these levers 170 being shown in FIG. 1 ).
  • One of the levers 170 can be utilized to functionally operate the ottoman 130 closest to the lever 170 .
  • the mechanisms for linking levers such as levers 170 to extendable and retractable ottomans are relatively well known in the art. Any of a number of different connection mechanisms can be utilized to provide for the appropriate structure and functional operation.
  • FIGS. 15-29 illustrate various other embodiments of furniture systems showing the systems in both sofa and sleep configurations, and also showing various illustrations of the use of the ottomans 130 and drawer 132 .
  • FIG. 15 illustrates a furniture system 200 in the sofa configuration.
  • the sides 114 and arms 116 can be characterized as having a recessed configuration with wood cap arms.
  • the system 200 can be characterized as an “open base” system, without ottomans or any drawer.
  • FIG. 16 illustrates the furniture system 200 shown in FIG. 15 , but showing the furniture system 200 in the sleep or bed configuration.
  • FIG. 17 illustrates a further embodiment of a furniture system 210 .
  • the system 210 is shown in the sleep configuration and includes sides 114 and arms 116 having recessed configurations with wood cap arms.
  • the lower front of the system 210 includes a continuous upholstered panel.
  • the system 210 does not include any ottomans 130 or drawer 132 .
  • FIG. 18 illustrates the furniture system 210 shown in FIG. 17 , but with the system 210 in the sofa configuration.
  • FIG. 19 identifies a further embodiment of a furniture system characterized as furniture system 220 .
  • the furniture system 220 is shown in the sofa configuration in FIG. 19 .
  • the system 220 can be characterized as having sides 114 and arms 116 identified as recessed wood inserts with wood cap arms.
  • the system 220 can also be characterized as one having a continuous upholstered panel.
  • FIG. 20 is a further illustration of the system 220 shown in FIG. 19 , but showing the system 220 in the sleep or bed configuration.
  • FIG. 21 illustrates a further embodiment of a furniture system referenced as furniture system 230 .
  • the sides 114 and arms 116 of the system 230 can be characterized as having a recessed wood panel configuration, with wood cap arms.
  • the system 230 also includes an open base, without ottomans 130 or a drawer 132 .
  • FIG. 22 is a further illustration of the furniture system 230 as shown in FIG. 21 , but showing the system 230 in the sofa configuration.
  • FIG. 23 is an illustration somewhat similar to FIG. 1 , but showing a furniture system 240 .
  • the system 240 includes sides 114 and arms 116 which can be characterized as having a recessed wood panel configuration, with wood cap arms.
  • FIG. 23 also illustrates the ottoman and drawer options, and shows a pair of ottomans 130 and drawer 132 in retracted positions.
  • FIG. 24 also illustrates the furniture system 240 , but shows the furniture system 240 in the sleep or bed configuration.
  • FIG. 25 is an illustration of furniture system 242 , showing a sofa with a recessed wood cap arm, having ottoman and drawer options.
  • the ottoman 130 is shown in an extended position.
  • FIG. 26 illustrates a furniture system 250 similar to the system shown in FIG. 24 , with the system having a recessed wood panel with wood cap arms, and ottoman and drawer options with the ottoman 130 in an extended position.
  • the sides 114 and arms 116 can be characterized as having recessed wood panels with wood cap arms.
  • FIG. 27 illustrates a furniture system 260 .
  • the system is shown with an extended ottoman 130 .
  • the sides 114 and arms 116 of system 260 can be characterized as having upholstered configurations.
  • FIG. 28 is a further view of the furniture system 260 .
  • the furniture system 260 in FIG. 28 is shown with the ottomans 130 in retracted positions.
  • FIG. 29 illustrates the furniture system 260 with the ottomans 130 in a retracted position, and with the system 260 in a sleep or bed configuration.
  • FIG. 30 illustrates a furniture system 300 in a vertical, sectional view, showing an example interconnection of an ottoman 302 to the furniture system 300 , with the furniture system 300 having the convertible sofa/bed conversion mechanisms as previously described herein.
  • FIG. 30 illustrates the ottoman 302 in an extended position.
  • the ottoman 302 is connected to appropriate elements of the sofa/bed configuration through a hardware assembly 304 .
  • the hardware assembly 304 includes a stationary support frame 306 fixedly secured to other elements of the sofa/bed configuration.
  • FIG. 30 is illustrating only one-half of the configuration of the ottoman 302 with the associated hardware assembly 304 .
  • Pivotably secured to a rear portion of the stationary support frame 306 is a pivot bracket 308 .
  • the pivot bracket 308 at an end opposing the connection to the stationary support frame 306 , is coupled to a pivot link 310 .
  • the pivot link 310 is coupled both to the stationary support frame 306 and is associated with a second pivot bracket 312 .
  • the second pivot bracket 312 is coupled at one end in a pivotal matter to an external linkage 314 .
  • the external linkage 314 includes a first footpad link 316 .
  • the first footpad link 316 is coupled to a lower frame section of a first footpad 318 .
  • Coupled to the lower frame section of the first footpad 318 is a second footpad linkage 320 .
  • the second footpad linkage 320 is, in turn, coupled to the second footpad 322 .
  • the hardware assembly 304 facilitates extension and retraction of the ottoman 302 in a relatively conventional manner.
  • An ottoman having features associated with extension and retraction from seating furniture is disclosed in Johnson et al., U.S. Pat. No. 5,695,239, issued Dec. 9, 1997.
  • FIG. 31 illustrates the furniture system 400 in a front, elevation view.
  • the furniture system 400 in accordance with the invention can include sets of front legs 402 , and corresponding rear legs 406 (with rear legs 406 being shown, for example, in FIGS. 33 and 34 ).
  • the legs 402 , 406 support a frame 404 for the entirety of the furniture system 400 .
  • the system 400 further includes a furniture back 408 , with the furniture back 408 having a back front surface 410 (as shown in FIG. 31 ) and a rear back surface 412 (as shown in FIG. 32 ).
  • the desk 414 Extending forwardly from the upper central portion of the back front surface 410 is a desk 414 .
  • the desk 414 includes an upper work surface 434 .
  • the desk provides for an integrated work surface for use by individuals using the furniture system 400 .
  • the desk is preferably positioned so that it does not extend forwardly beyond the frontal vertical plane of the furniture system 400 .
  • the furniture system 400 also includes a pair of bases 426 .
  • the bases 426 include a left-side base 416 and right-side base 418 .
  • Positioned above the bases 426 are a pair of seats 424 .
  • the seats 424 comprise a left-side seat 420 and right-side seat 422 .
  • a spatial interior area 427 exists between the lateral sides of the seats 424 and bases 426 which face each other.
  • the furniture system 400 can also include a pair of arms 428 positioned on opposing sides of the system 400 .
  • the arms 428 can include a left-side arm 430 and right-side arm 432 . These arms 428 provide arm rests for individuals seated on the seats 424 .
  • FIG. 31 illustrates the furniture system 400 in a sitting configuration.
  • FIG. 32 illustrates the furniture system 400 in a sleep configuration.
  • the rear surface 412 of the back 408 acts as the sleep surface for the user.
  • the desk 434 conveniently is stored between the seats 424 when the furniture system 400 is in the sleep configuration.
  • the desk 414 does not extend beyond the footprint of the basic furniture system 400 .
  • the furniture system 400 can include a pair of linkage mechanisms 470 .
  • One of the linkage mechanisms 470 is illustrated in FIGS. 49-54 .
  • FIGS. 49-54 illustrate the general configuration of one of the linkage mechanisms 470 when the furniture system 400 is moving between the sitting configuration and the sleep configuration.
  • Details of the linkage mechanisms which can be utilized with furniture systems in accordance with the invention have been substantially described with respect to the linkage mechanism 134 associated with the furniture systems illustrated in FIGS. 1-30 . Accordingly, a detailed description of the operation of linkage mechanism 470 will not be set forth herein. However, its specific operation will be apparent from the description of the operation of the linkage mechanism 134 .
  • various types of linkage mechanisms can be utilized in accordance with the invention, other than linkage mechanism 470 , without departing from the spirit and scope of the principal novel concepts of the invention.
  • the linkage mechanism 470 can include a first link 472 , as specifically shown in FIGS. 49-54 .
  • the first link 472 is substantially elongated and is connected at its end through a connection point 474 to the back 408 .
  • the other end of the first link 472 is connected through a link point 476 to the seat 424 .
  • This link and connection point 476 is further connected to one end of an extension link 478 .
  • the other end of the extension link 478 is connected through a link point 480 to a long link 482 .
  • the opposing end of the long link 482 is connected through a link point 484 to a short link 486 .
  • the short link 486 is connected to an intermediate link 488 through a connection point 496 .
  • the short link 486 while being connected to the long link 482 and link point 484 , is connected to or otherwise integral with an intermediate link 488 at a connection point 496 .
  • intermediate link 488 At the opposing end of intermediate link 488 , the link is connected to a further link 494 through a link point 492 .
  • the opposing end of the further link 494 is secured to the back 408 through the connection point 490 .
  • connection points 474 and 490 permit the furniture back 408 to rotate relative to the aforedescribed links.
  • FIG. 49 the configuration of the linkage mechanism 470 when the back 408 is in an upright position and the furniture system 400 is in a full sitting configuration is shown in FIG. 49 .
  • FIG. 50 illustrates the orientation of the linkage mechanism 470 as a user would pull forwardly on the back 408 , so as to start to move the back 408 away from the sitting configuration.
  • FIG. 51 illustrates a further orientation of linkage mechanism 470 as the back 408 is further pulled forwardly by the user.
  • FIG. 52 and 53 illustrate further orientations of the linkage mechanism 470 as the back 408 is moved toward the sleep configuration.
  • FIG. 54 specifically illustrates the linkage mechanism 470 when the back 408 is fully reclined and the entirety of the furniture system 400 is in the sleep configuration.
  • FIGS. 36 and 37 illustrate another embodiment of a furniture system 500 in accordance with the invention.
  • the furniture system 500 includes at least one ottoman or footrest 440 positioned within the right side base 418 .
  • the ottoman or footrest 440 cannot actually be seen in FIG. 36 , as it is in a retracted position.
  • the ottoman or footrest 440 is operated through the lever arm 438 . Details associated with the use of a linkage mechanism for purposes of operating an ottoman through the use of a lever arm at the side of a furniture system were previously shown in FIG. 30 and also previously described herein in the detailed description of FIG. 30 .
  • FIG. 36 illustrates the ottoman or footrest 440 in the retracted position
  • FIG. 37 illustrates the ottoman or footrest 440 in the extended position.
  • FIGS. 38 and 39 illustrate a further embodiment 520 of a furniture system in accordance with the invention.
  • FIG. 38 illustrates an ottoman or footrest 440 in a retracted position, and further illustrates a storage drawer 442 positioned below the seat 420 within the base 416 .
  • the storage drawer 442 is shown in the retracted position.
  • FIG. 38 illustrates the ottoman or footrest 440 in the retracted position, while FIG. 39 illustrates the ottoman or footrest 440 in the extended position.
  • FIGS. 40-43 An additional embodiment of the invention is shown as embodiment 540 as illustrated in FIGS. 40-43 .
  • the furniture system 540 does not include an ottoman or footrest, but instead includes a pair of storage drawers 444 , identified as left-side storage drawer 442 and right-side storage drawer 446 .
  • FIGS. 40 and 42 illustrate the furniture system 540 in a sitting configuration
  • FIGS. 41 and 43 illustrate the furniture system 540 in a sleep configuration.
  • FIGS. 44-48 A still further embodiment of a furniture system in accordance with the invention is illustrated in FIGS. 44-48 .
  • the furniture system 560 is illustrated in a sitting configuration in FIGS. 44 and 47 .
  • FIGS. 46 and 48 illustrate the furniture system in a sleep configuration.
  • FIG. 45 illustrates the furniture system 560 as it is being moved between a sitting configuration and sleep configuration.
  • the particular embodiment 560 of a furniture system in accordance with the invention does not include any ottoman or footrest, or any storage drawers.
  • the furniture system 560 includes a left-side base and seat configuration 448 , and a right-side base and seat configuration 450 .
  • the furniture system 560 includes a center base and seat configuration 452 .
  • the center base and seat configuration 452 is positioned in the center of the furniture system 560 , intermediate the right and left-side base and seat configurations 446 , 448 , respectively.
  • FIGS. 55-99 A number of the principal concepts associated with sofa and sleep conversion mechanisms, sleep systems and basic concepts associated with the use of a work surface with a furniture system have been described in prior paragraphs herein. Accordingly, many of these details will not be repeated, although they clearly are associated with furniture system 600 and other embodiments of furniture systems in accordance with the invention.
  • FIGS. 55 and 56 the furniture system 600 is illustrated in FIG. 55 in a sofa configuration.
  • FIG. 56 illustrates the system 600 in a sleep configuration.
  • FIGS. 57-61 illustrate side, elevation and partially “cutaway” views of the system 600 , for purposes of illustrating the use of linkage mechanisms in converting the furniture system 600 from a sofa to a sleep configuration.
  • the furniture system 600 can include a lower base 602 having any of a number of various supporting configurations.
  • the lower base 602 is connected to other structural components through a connecting frame 604 .
  • the base 602 and frame 604 can be structured in various embodiments.
  • Integral with or otherwise secured to the lower base 602 are a series of front legs 606 and rear legs 608 . Upstanding and adjacent the front legs 606 are a pair of front corners 610 .
  • the outer back 612 can be characterized as providing a main structural member for the furniture system 600 , while also providing support for the movable high back cushion or inner back 620 (described in subsequent paragraphs herein).
  • each of the arms 611 and 613 can be characterized as a main structural member of the furniture system 600 .
  • the linkage mechanism associated with the right arm 613 is characterized as right-side conversion mechanism 800 .
  • the mechanisms 800 and 801 are substantially similar in structure but may function with certain differences which will be made apparent from subsequent description herein (see, for example, the push button actuator 615 which is connected into the right-side mechanism 800 ). Collectively, the mechanisms 800 , 801 are characterized as a “linkage mechanism” 880 . It should be noted that each of the mechanisms 800 , 801 is configured and packaged so as to exist within the interiors of the sides 614 . Positioning the mechanisms 800 , 801 in these “hidden” interiors essentially eliminates a safety hazard which exists with respect to other linkage mechanisms which may have physically accessible “pinch points” and other structures of potential harm.
  • the linkage mechanisms 800 , 801 operate so as to mechanically provide the conversion of the furniture system 600 between sleep and sofa configurations.
  • the sides 614 extend forwardly and can include corresponding armrests 616 positioned on the top of the sides 614 .
  • the system 600 also includes a movable high back cushion or inner back 620 .
  • the movable back cushion 620 with the system 600 in a sofa configuration (as shown in FIGS. 55 and 56 ), is supported on the stationary outer back 612 .
  • the high back cushion or inner back 620 provides a back cushion when the furniture system 600 is in the sofa configuration, and further provides a sleep surface (with the rear surface of the inner back 620 providing the upward facing sleep surface) when the furniture system 600 is in the sleep configuration.
  • a removable high back cushion 120 included a handle 122 accessible to the user. The user could be positioned in the front of the furniture system 100 , and pull forwardly on the handle 122 to initiate movement of the system 100 from a sofa configuration to a sleep or bed configuration.
  • the furniture system 600 includes what is characterized as a push button actuator 615 mounted on the arm rest 616 associated with the right arm 613 , although the actuator 615 can be positioned in any of a number of desired positions.
  • the push button actuator 615 is directly associated with the mechanism 800 (as described in subsequent paragraphs herein) and is adapted for use by an end user for purposes of engaging a conversion mechanism latch (described in subsequent paragraphs herein). Engaging the conversion mechanism latch will cause the inner back 620 to initiate forward motion and present itself for conversion to a sleep surface.
  • the use of the push button actuator 615 can take the place of a handle or similar device associated with the inner back 620 which the user may physically engage and pull forward so as to initiate the conversion process.
  • the push button actuator 615 can be particularly advantageous.
  • the furniture system 600 can also include a pair of opposing seat cushions 628 .
  • the seat cushions 628 can remain stationary during conversion movement of the furniture system 600 between the sofa configuration and the bed or sleep surface configuration.
  • the seat cushions 628 provide both a seating surface when the system 600 is in the sofa configuration, and a sleep surface “support” when the system 600 is in the sleep configuration.
  • the system can include one or a pair of extendable and retractable integrated ottoman foot rests 630 .
  • An ottoman foot rest 630 is shown in a retracted configuration in FIG. 55 , and is positioned below the seat cushion 628 on the right side of the system 600 as looking toward the back of the same. Accordingly, in both FIGS. 55 and 56 , the ottoman foot rest 630 is substantially hidden from view. Details associated with the foot rest 630 are set forth in subsequent paragraphs herein, with respect to a description of the illustrations of FIGS. 93 and 94 .
  • the furniture system 600 can include an ottoman actuator lever 601 , illustrated in a number of the drawings, including FIGS. 55 and 56 .
  • the actuator lever 601 can be manually operated by the user for purposes of extending and retracting the ottoman foot rest 630 .
  • the system 600 can include an extendable and retractable drawer assembly 632 .
  • the drawer assembly 632 like the ottoman foot rest 630 , is also located below one of the seat cushions 628 and is shown in a retracted position in FIGS. 55 and 56 .
  • a drawer front panel 634 is specifically shown in FIGS. 55 and 56 , while details relating to the drawer assembly 632 which may be utilized in accordance with the invention are described in subsequent paragraphs herein, and illustrated in FIGS. 96 and 97 .
  • FIGS. 55 and 56 also partially illustrate an adjustable table assembly 700 , having a tabletop 701 .
  • concepts associated with the adjustable table assembly 700 form a number of the principal concepts of the invention.
  • the table assembly 700 is provided within a furniture system which provides for a number of different functional configurations.
  • the advantages of the adjustable table assembly 700 in accordance with the invention will be described in subsequent paragraphs herein with respect to operation of the adjustable table assembly 700 .
  • a table 60 mechanism brake release handle 702 and table skirt 706 is also illustrated in FIGS. 55 and 56 , as part of the adjustable table assembly 700 .
  • the brake release handle 702 is an input device employed by the end user to disengage the table mechanism brake by way of a table mechanism brake link described and illustrated in subsequent paragraphs herein.
  • the release of the table mechanism brake allows the table mechanism to be moved into one of three positions. Greater details regarding the table assembly 700 and the adjustable positioning of a table mechanism 710 will be described in subsequent paragraphs herein with respect to additional illustrations.
  • the furniture system 600 employs a conversion mechanism 880 comprising linkage mechanisms 800 , 801 which are associated with the furniture arms 612 , 613 , respectively.
  • FIGS. 62-66 are enlarged views of the linkage mechanism 800 as positioned and operable within the arms 611 , 613 .
  • FIGS. 67-73 are various views of components of the linkage mechanism 800 , but shown in a standalone format independent of other elements of the furniture system 600 .
  • FIG. 88 illustrates a front, perspective view of the right arm 613 and linkage mechanism 800 when the furniture system is in the sofa configuration.
  • FIG. 90 is a front, elevation view of one half of the furniture system 600 , showing the linkage mechanism 800 within the right arm 613 in an exposed configuration, and with the system in a full sofa configuration.
  • FIG. 90 is a plan view of the linkage mechanism 800 shown in an exposed position, and further showing the right half of the furniture system 600 .
  • the mechanism 800 (which is associated with the side 614 comprising the right arm 613 ) will be described in detail with regard to furniture system operation.
  • the linkage mechanism 801 (which is associated with the side 614 comprising the left arm 611 ) will essentially operate in tandem and is substantially structurally and functionally equivalent to the mechanism 800 .
  • the furniture system 600 is first in the sleep configuration as illustrated in FIG. 55 .
  • the user will activate the push button actuator 615 , exerting downwardly directed forces on the same.
  • the actuator 615 being characterized as an “end user input device”, operates so as to disengage a conversion mechanism latch 804 (described in subsequent paragraphs herein). This disengagement will initiate movement of the inner back 620 into motion, for presenting itself for conversion to a sleep surface.
  • the push button link 802 can be in a form of a formed steel rod that translates vertical input motion into a horizontal motion which releases the conversion mechanism latch 804 .
  • a push button link guide 810 is positioned near the bottom portion of the push button link 802 , and provides a bearing surface for the push button link 802 to convert from vertical motion to horizontal motion.
  • a push button security bolt 816 which can be used to facilitate prevention of intentional or accidental misuse of the entirety of the linkage mechanism 880 .
  • links are positioned which can be characterized as mechanism mount links 830 .
  • One such mount link 830 is shown adjacent the push button link guide 810 located at the bottom portion of the push button link 802 .
  • Each mechanism mount link 830 associated with the right arm 613 provides for a connection within the linkage mechanism 880 which mounts the linkage mechanism 800 to the inside portion of the right arm 611 .
  • the push button link 802 moves horizontally along the push button link guide 810 , it will act to operate the mechanism latch 804 located near the bottom central portion of the right arm 613 .
  • This feature is shown in detail in the enlarged illustration of FIG. 62 which corresponds to FIG. 57 with respect to the inner back 620 beginning to overcome inertial forces and move forwardly.
  • a function of the mechanism latch 804 is to lock the back cushion or inner back 620 in the stationary position corresponding to the sofa configuration. That is, the mechanism latch 804 acts so as to lock the conversion mechanism 880 in the upright or “normal” seating position with respect to the inner back 620 .
  • a mechanism assist link 806 is activated.
  • the mechanism assist link 806 provides a mechanical interface between an assist cylinder housing 818 and the conversion mechanism 800 associated with the right arm 613 . As illustrated in a number of the drawings, include FIGS. 57-67 , the mechanism assist link 806 is connected at its lower end to the assist cylinder housing 818 .
  • the assist cylinder housing 818 houses an assist cylinder 808 and directs forces from the assist cylinder 808 directly to a specific point on a mechanism front link 826 through a mechanism assist link 806 .
  • the mechanism assist link 806 essentially provides the interface between the assist cylinder housing 818 and the mechanical linkages of the conversion mechanism 800 through the mechanism front link 826 .
  • the lower portion of the mechanism assist link 806 is directly connected to the assist cylinder housing 818 and the upward portion of the assist cylinder 808 housed therein.
  • the upward portion of the mechanism assist link 806 is pivotably connected to the elongated mechanism front link 826 .
  • the mechanism front link 826 can be characterized as a link in the conversion mechanism 800 to which the assist cylinder 808 applies forces through the mechanism assist link 806 .
  • a push button interface 615 is operated by the user, so as to activate vertical and horizontal motion of a push button link 802 .
  • the push button link guide 810 provides a bearing surface for the push button link 802 to convert the vertical motion provided by the push button actuator 615 into a horizontal motion.
  • the horizontal motion of the push button link 802 releases the mechanism latch 804 .
  • the push button link 802 also operates in combination with the assist cylinder 812 .
  • the assist cylinder 812 applies forces to the conversion mechanism 800 through the mechanism assist link 806 and the mechanism front link 826 .
  • the assist cylinder 808 applying forces to the conversion mechanism 800 , the mechanism 800 causes the inner back to be lifted to a predefined position. This occurs as a result of opening the mechanism latch 804 so as to operationally release the assist cylinder 808 .
  • This activity is primarily shown in FIGS. 57, 58 and 62, 63 .
  • the assist cylinder 808 applies forces to the conversion mechanism 800 . These forces will cause the inner back 620 to move from its “sofa” position shown in FIG. 57 to a raised and predefined position shown in FIG. 58 .
  • the assist cylinder 808 is allowed to operate after the push button link 802 , through its horizontal motion, releases the mechanism latch 804 .
  • the mechanism front link 826 is characterized as the link in the conversion mechanism 800 to which the assist cylinder 808 applies forces.
  • the mechanism front link 826 has one end pivotably connected to a mechanism mount link 830 .
  • the mechanism mount links 830 provide links in the conversion mechanism 800 which mount the same to the inside portion of the arm panel.
  • An opposing end of the mechanism front link 826 is pivotably connected to one end of a mechanism back link 820 .
  • the pivot connection between the mechanism front link 826 and the mechanism back link 820 provides for control of the motion of the mechanism back link 820 .
  • the mechanism back link 820 can be characterized as providing the link in the conversion mechanism 800 which transfers motion through the mechanism back link rod 822 and mechanism back attachment plate 832 .
  • the mechanism back link rod 822 is illustrated from an “end on” position in FIGS. 56-67 .
  • the longitudinal extension of the rod 822 is illustrated, for example, in FIGS. 68-70 and 72, 73 .
  • the mechanism back attachment plate 832 is primarily shown in FIGS. 68, 72 and 73 .
  • the mechanism back link rod 822 in conjunction with the mechanism back link 820 and the mechanism back attachment plate 832 , aids in the transfer of motion to the inner back 620 .
  • the mechanism back attachment plate 832 provides for an interface between the conversion mechanism 800 and the inner back 620 , while aiding in the transfer of motion to the inner back 620 .
  • Connections between the mechanism back link rod 822 and the mechanism back attachment plate 832 are primarily shown in FIGS. 68-73 .
  • Other elements associated with the conversion mechanism 800 include an assist pivot clip 834 .
  • the pivot clip places and secures the assist pivot 814 in the proper location on the right arm assembly.
  • the mechanism 800 includes an assist cylinder guide 836 .
  • the assist cylinder guide 836 can be utilized to hold the assist cylinder housing 818 in position during cylinder installation.
  • FIGS. 57 and 58 the furniture system 600 is moved from a normal seating position or sofa position to one where the inner back 620 is put into motion by the assist cylinder 812 .
  • FIG. 59 illustrates the assist cylinder 812 at what could be characterized as “maximum stroke.” In this position, the assist cylinder 812 can essentially be characterized as presenting and holding the inner back 620 for additional end user input.