• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    A furniture frame (10) for an extensible table, comprising two members (12, 14) being connected to each other by means of a pivot joint (20), is provided. The members (12, 14) are moveable relative each other between a closed end position and a final end position, and the pivot joint (20) is configured such that the members (12, 14) are pivotally moveable betw een the closed end position and an intrinsic end position, whereby the opening angle (α) of the intrinsic end position is less than the opening angle (β) of the final end position.
    公开号:SE1650959A1
    申请号:SE1650959
    申请日:2016-07-01
    公开日:2018-01-02
    发明作者:Andersson Benny
    申请人:Ikea Supply Ag；
    IPC主号:
    专利说明:

    A FURNITURE FRAME, AND A TABLE COMPRISING SUCH FURNITUREFRAME Technical FieldThe present invention relates to a furniture frame and in particular to afurniture frame for use with collapsible furniture, such as a table. The present invention also relates to a method for extending a table using such fumiture frame.
    BackgroundFor various reasons it is desirable to provide fumiture with an extensible functionality, e. g. in order to design versatile fumiture or to allow stowing. Adding suchfunctionality may be accomplished in various ways, such as by using telescopiccomponents. Another way of accomplishing collapsible fumiture is to rely on hingeswhereby specific fumiture parts, being connected to the hinge on opposite sides of afixed axis of rotation, can be folded into a less space-requiring configuration.
    The hinge should normally be configured to allow for a rotation between twopositions; a folded or retracted position, in which the furniture is at least semi-collapsed,and an unfolded or open position, in which the furniture is operational in an extendedposition.
    Especially for fumiture robustness is of great importance. When introducinghinges e. g. to an extensible table it is desired to ensure smooth pivotal action, but alsowell-defined end position for the hinge. An example of an extensible table is describedin GB190910532.
    In order to provide strong and rigid furniture once extended, the associatedhinges must be manufactured using high precision tolerances for keeping any side playor end play at a minimum. Hence, the overall cost for the furniture will rapidly increase.
    In view of this, there is a need for an improved solution which fulfills the above-mentioned requirements but at the same time may be manufactured less costly.
    SummagAccordingly an object of the present invention is to provide a fumiture frame which solves the problem of prior art solutions.
    An idea of the present invention is to provide a furniture frame having a pivotjoint such that the furniture frame can be pivoted to an end position, and thereafterbeing urged and locked in a final end position being angularly positioned beyond thefirst end position. Hence, the pivot joint is manufactured with a built-in error as the pivotal capability of the fumiture frame is not enough to open the pivot joint to its desired open end position. By introducing the tension to compensate for the built-inerror any end play of the pivot joint will disappear, thus greatly increasing therobustness of the associated furniture frame.
    According to a first aspect, a furniture frame for an extensible table isprovided. The furniture frame comprises two members being connected to each other bymeans of a pivot joint, wherein the members are moveable relative each other between aclosed end position and a final end position. The pivot joint is configured such that themembers are pivotally moveable between the closed end position and an intrinsic endposition, whereby the opening angle of the intrinsic end position is less than the openingangle of the final end position.
    The pivot joint may be provided with an angular stop defining the maximumopening angle of the intrinsic end position between the members.
    The opening angle of the final end position may be l80°, and the opening angleof the intrinsic end position may be between l75° and l79°.
    One of said members may be fixed, whereby the other member may bemoveable by means of the pivot joint.
    At least one member may form part of a furniture leg.
    According to a second aspect a furniture frame assembly is provided. Thefurniture frame assembly comprises at least two furniture frames according to the firstaspect, wherein one member of the first furniture frame is connected to one member ofthe second furniture frame.
    The connection between the two furniture frames may be formed by means of ahinge.
    The connection between the two furniture frames may be formed by means of apivot joint such that the connected members of the first and second fumiture frame aremoveable relative each other between a closed end position and a final end position, andwherein the pivot joint is configured such that the connected members of the first andsecond fumiture frames are pivotally moveable between a closed end position and anintrinsic end position, whereby the opening angle of the intrinsic end position is lessthan the opening angle of the final end position.
    The furniture frame assembly may further comprise a locking mechanism formaintaining the final end position of the connected members of the first and secondfurniture frames.
    The locking mechanism may comprise a shoulder and a moveable lockingmember configured to apply a pressing force to said connected members of the first andsecond furniture frames.
    The locking member may be moveable in a direction being perpendicular to thelongitudinal direction of the fumiture frames.
    The locking member may be moveable in a direction being parallel with thelongitudinal extension of the furniture frames.
    The locking mechanism may comprise a groove in Which the connectedmembers of the first and second fumiture frames will fit.
    According to a third aspect, a fumiture side structure is provided. The fumitureside structure comprises two fumiture frame assemblies according to the second aspect,Wherein two members of different furniture frame assemblies are rigidly connected.
    According to a fourth aspect a furniture, such as a table is provided. Thefurniture comprises at least one fumiture frame according to the first aspect.
    The furniture frame may form part of a furniture frame assembly according tothe second aspect, and/or a fumiture side structure according to the third aspect.
    According to a fifth aspect a method for extending a fumiture, such as a table,is provided. The method comprises providing a furniture frame, comprising at least twomembers being pivotally connected by means of a pivot joint; moving at least one ofsaid members by a pivoting action to an intrinsic end position of the pivot joint,resulting in a total length of the fumiture frame being slightly less than the desired totallength of the furniture frame; applying a force to at least one of said two membersurging the pivot joint to open further, thus extending the total length of the furnitureframe; and locking the pivot joint such that said two members are forced towards each other.
    Brief Description of the Drawings The invention will be described in further detail below under reference to theaccompanying drawings, in which Fig. 1 is a side view of a pivot joint for use with a furniture frame according toan embodiment; Fig. 2a-c are top views of a pivot joint for use with a fumiture frame accordingto an embodiment; Fig. 3 is a top view of a furniture frame according to an embodiment; Fig. 4 is a top view of a furniture frame according to an embodiment; Fig. 5 is a top view of a furniture frame according to an embodiment; Fig. 6a is an isometric view of an extensible table, shown in a retractedposition, and having several furniture side structures according to an embodiment; Fig. 6b is an isometric view of the table shown in Fig. 6a, here shown in an extended position; Fig. 7 is an overview of the procedure for rearranging a table having severalfurniture side structures according to an embodiment between a retracted position andan extended position; Figs. 8a-c are top views of an assembly including a furniture side structureaccording to an embodiment; Fig. 9 is a front view of a table using a furniture side structure according to anembodiment; Fig. 10 is a cross-sectional view of a table using a furniture side structureaccording to an embodiment; Fig. 11 is a bottom view of a table using a furniture side structure according toan embodiment; Fig. 12 is a front view of a furniture side structure according to anembodiment; Fig. 13 is an isometric view of furniture legs for use with furniture sidestructures according to various embodiments; and Fig. 14 is a schematic view of a method according to an embodiment.
    Detailed DescriptionStarting in Fig. la general description of a furniture frame 10 will be given.
    The furniture frame 10, which has proven to be particularly advantageous for use withextensible tables, is formed by two members 12, 14 being connected to each other bymeans of a pivot joint 20. The pivot joint 20 may be configured according to variouswell known techniques, such as by alternating cylindrical parts 15, 16 being axially andradially secured to each other by a pin 17 extending through the cylindrical parts 15, 16.One member 12 is provided with one or more cylindrical parts 15, while the othermember 14 is provided with one or more cylindrical parts 16. The pin 17 extendsthrough all cylindrical parts 15, 16 as is shown in Fig. 1. Due to this arrangement, whichcould be replaced by other working principles of pivot joints 20, the first member 12 ispivotable relative the second member 14 and vice versa.
    However, the pivot joint 20 is also provided with a stop member 30 whichlimits the pivot movement of the members 12, 14. The stop member 30, which e.g.could be provided as a protruding part at one or more positions as indicated in Fig. 1, isconstructed such that the pivot movement ends close to the linear position when theangle between the first and second members is 180°.
    This is shown in Figs. 2a-c, of which Fig. 2a shows a position of the members12, 14 where the pivot joint is fully operational. When reaching the position shown inFig. 2b, i.e. when the stop member 30 engages with the second member 14, further pivoting of the second member 14 is prevented. The stop member 12 is thus preferablyfixed relative the first member 12, such that it will always engage the second member14 when the second member 14 is arranged at a specific angle ß relative the firstmember 12. This position represents an intrinsic end position.
    Unless the pivot joint 20 is manufactured with perfect tolerances there will be acertain play in the connection between the first and second member 12, 14. However,the inventors has surprisingly discovered that the robustness of the pivot joint 20, andthus also of the furniture frame 10, can be highly improved by applying a force to thefurniture frame 10 such that the second member 14 moves past the intrinsic end positionto reach a desired end position, as indicated in Fig. 2c, defined by the angle ot. Whenthis force is applied, a rotational movement of the second member 14 will cause radialforces of much greater magnitude to the pivot joint 20 such that any play present willdisappear. During application of the force the second member 14 will act as a lever arm,only requiring a very small torque to be applied at the free end of the second member 14for achieving the desired radial force. The furniture frame can thus be said to operateaccording to the principles of a crowbar.
    The idea is thus to manufacture the pivot joint with a built-in error such that therotational end position is slightly before the desired end position, which normally isdefined at ot = l80°, and to force the members 12, 14 of the furniture frame 10 to moveeven further such that radial forces acting on the pivot joint reduces any slack in theconstruction of the pivot joint 20.
    This specific principle can be used for various furniture frames 10 as will befurther described in the following. In Fig. 3 one embodiment of a furniture frame 10 isshown, wherein one member 12 is fixed to a support 32, such as a wall or similar. Thefree end of the second member 14, i.e. the end facing away from the pivot joint 20, maybe provided with a furniture leg 40. The furniture frame 10 can thus be used to fold inand out a leg 40 from the wall, and a table surface (not shown) could be arranged on topof the leg 40. As is easily understood, two or more furniture frames 10 could be used inthis manner to improve supporting the table surface.
    In Fig. 4 another embodiment of the use of fumiture frames 10 is shown. Here,two furniture frames 10a, 10b form a fumiture frame assembly 50. The free ends of thesecond members 14a, l4b of the first and second furniture frames 10a, 10b areconnected by means of a hinge 60.
    A yet further configuration of a furniture frame assembly 50 is shown in Fig. 5,in which the hinge 60 of the embodiment shown in Fig. 4 is replaced by a pivot joint 20being similar to the configuration described above. Hence, the second member 14a ofthe first furniture frame 10a is connected to the second member l4b of the second furniture frame 10b by the pivot joint 20. The pivot joint 20 thus ensures that theconnected members 14a, 14b of the first and second furniture frame l0a, 10b aremoveable relative each other between a closed end position and a final end position, andthe pivot joint 20 is configured such that the connected members 14a, 14b of the firstand second furniture frames l0a, 10b are pivotally moveable between a closed endposition and an intrinsic end position, Whereby the opening angle ß of the intrinsic endposition is less than the opening angle ot of the final end position.
    Now turning to Fig. 6a an extensible table 100 is shown, which is providedwith furniture frames 10 in the form of furniture frame assemblies 50. The table 100 isshown in a contracted or collapsed position. A tabletop 102 is supported by twoopposite supports 103. The supports 103 and the tabletop 102 forms an interior space104 accommodating the various parts used for extending the table 100.
    As is further illustrated in Fig. 6b, the table 100 can be extended by pulling outa number of table sections l05a-e from the space 104. Each table section l05a-eincludes a front pair of legs 40a-e, 40”a-e. The legs 40a-e, 40”a-e of a common pair, e. g.the two legs 40a and 40”a, are connected by a rigid rim 107, while two legs of adjacentpairs, e. g. the two legs 40”a and 40”b and the two legs 40a and 40b, are connected by arespective fumiture frame assembly 50 forming a pivotable rim for the table sectionl05a-e. Hence, except for the last table section l05e the rear leg pair 40b-e, 40'b-e ofeach table section l05a-d form the front leg pair of the subsequent table section l05b-e.
    Preferably, for this particular embodiment the furniture frame assembly 50 ofthe last table section l05e is connected at one respective end at the leg pair 40e, 40”e,and at the opposite ends at the supports 103.
    Each table section 5a-e is further provided with an associated tabletop 108a-e.Each tabletop l08a-e rests on a frame formed by the rims 107, the upper ends of thelegs 40a-e, 40”a-e, and the furniture frames 10.
    As can be seen in Fig. 6a when the table 100 is contracted, the fumiture framesassemblies 50 are folded or closed such that the leg pairs 40a-e, 40”a-e are arranged inclose proximity to each other. When the table 100 is arranged in this position thetabletops 108a-e of each table section l05a-e may be stowed, e.g. in the space availableundemeath the tabletop 102 of the table 100. As can be seen in Fig. 6a the width of eachsupport 103 is greater than the total width of the leg pairs 40a-e, 40”a-e such that thetabletops l08a-e of the table sections l05a-e may be positioned within the space 104while still allowing the leg pairs 40a-e, 40”a-e to fit as well. The legs 40a-e, 40”a-e arethus fully accommodated within the space 104.
    Now turning to Fig. 7 another embodiment of an extensible table 100 is shown.Starting at the leftmost portion of the figure, the table 100 includes a rectangular tabletop 110 and four legs 40a-b, 40”a-b arranged at each corner of the tabletop 110.The legs 40a-b, 40'a-b are arranged in pairs, such that two legs 40a, 40”a are connectedby a rigid rim 107a, while the other two legs 40b, 40”b are connected by a similar rigidrim 107b.
    The tabletop 110 rests on a frame 113 formed by two essentially parallel rims114, extending on the lower side of the tabletop 110. ln this particular figure only onerim 114 is shown, but it is to be understood that a corresponding rim is provided on theopposite side of the tabletop 110.
    The rims 114are preferably securely attached to the tabletop 110. Each rim 114has a longitudinal extension along the underside of the tabletop 110 such that it endsslightly before the edge of the tabletop 110. Hence, the legs 40a-b, 40”a-b will beallowed to fit adj acent to the respective rims 114 while still being arranged underneaththe tabletop 110.
    Importantly, the legs 40a-b, 40”a-b are not directly connected with the rims114and/or the tabletop 110, but instead each leg 40a-b, 40”a-b is indirectly connected withthe tabletop/rim construction by means of a respective furniture frame assembly 50.Each furniture frame assembly 50 is thus at one end connected to the rim/tabletopconstruction, and at the opposite end it is connected to a leg 40a-b, 40”a-b.
    As can be seen in the rightmost portion of Fig. 7, each leg pair 40a, 40”a or40b, 40”b can be pulled out from the tabletop 110 by means of the furniture frameassemblies 50. The furniture frame assemblies 50 are moveable from a closed position,as indicated in the leftmost portion of Fig. 7, to an open position as shown in therightmost portion of Fig. 7. An intermediate position of the furniture frame assemblies50 is shown in the centre portion of Fig. 7. In the open position the furniture frameassemblies 50 will form elongations of the rigid rims 114, and additional tabletops108a-b may be arranged on top of the support frame formed by two opposite furnitureframe assemblies 50 and the upper ends of the legs 40a, 40”a or 40b, 40”b such thatadditional table sections 105a, 1055b are formed.
    With respect to the description above two possible table configurations havebeen disclosed, for which the extensible functionality is made possible by the provisionof the furniture frame assemblies 50 formed by connected furniture frames 10. By usingthis type of furniture frame assemblies 50, of which the details will be further explainedin the following, also other furniture may be improved by adding an extensiblefunctionality. Such examples include chairs, sofas, foldable panels, etc. ln Figs. 8a-c the functionality of the furniture frame assemblies 50 is shown inmore detail. For facilitating the understanding, the furniture frame assemblies 50 are shown in a configuration being similar to the furniture frame assemblies 50 used for thetables 100 shown in Figs. 6a-b and Fig. 7.
    As can be seen in Fig. Sa two furniture frame assemblies 50a, 50b are providedto form a fumiture side structure 200.
    Each furniture frame assembly 50a, 50b is formed by two interconnectedfurniture frames l0a, 10b. The first member 12 of a furniture frame 10 represents afurniture leg 40, or parts of it. Each pair of first members 12a, 12b are connected by arigid connecting member 107, corresponding to the rigid rims 107 of Figs. 6a-b and Fig.7.
    Hence, each furniture frame assembly 50a, 50b corresponds to any of theembodiments described previously with respect to Figs. 4 and 5.
    The second members 14a, 14b of the same furniture frame assembly 50a, 50bwill preferably have the same length, or substantially the same length, for allowing thefirst members 12a, 12b to be arranged in close proximity to each other when thefurniture frame assemblies 50a, 50b are fully closed. However, should it be desired tohave an offset between the first members l2a, 12b when the furniture frame assemblies50a, 50b are closed it would be possible to provide the second members 14a, 14b ofdifferent lengths such that the second member 14a of the first furniture frame assembly50a has the same length as the second member 14b of the second furniture frameassembly 50b.
    Each interface between a first member 12a, 12b and its associated secondmember 14a, 14b is provided by means of a pivot joint 20 as previously described.
    As shown in Fig. Sa, when the first members 12a, 12b are pulled away fromeach other the furniture side structure 200 will open, until the furniture frames 10 reachtheir intrinsic open end position being shown in Fig. 8b. As is clearly shown, the openend position angle between the respective first and second members 12a, 12b, 14a, 14bis slightly less than 180°, which is required for ensuring fully extended fumiture sidestructure 200. For example, the intrinsic open end position angle ot may e.g. be in therange of l75-179° depending on the application. At this position, any slack in afurniture frame 10 caused by tolerances or other manufacturing errors will reduce therobustness of the furniture side structure 200. Therefore, as indicated by the thickarrows in Fig. 8b, the furniture frames 10 will be pressurized in response to a pressingforce being applied in the direction of the arrows. Such force will urge the furnitureframes 10 to open further until the desired open end position angle ß of 180° is reached.As is evident any suitable intrinsic open end position angle ot is possible, as long as it isslightly less than the desired open end position angle ß.
    The final position of the furniture side structure 200 is shown in F ig. 8c, inwhich the furniture frames 10 have been urged outwards to reach the desired open endposition angle ß of 180°.
    A maintained force is required for keeping the furniture frame 10 in thepressurized state shown in Fig. 8c. For this, a number of mechanisms may be provided,of which some will be discussed in the following.
    In Fig. 9 a cross-sectional view of a part of a furniture is shown. A tabletop 102(or other furniture structure) is resting on a frame comprising at least one furnitureframe assembly 50; in the shown embodiment two parallel furniture frame assemblies50a, 50b are shown, supporting a respective side of the tabletop 102. The tabletop 102 isprovided with two identical locking mechanisms 130 for ensuring that the furnitureframe assemblies 50 remain in their pressurized position once mounted. Each lockingmechanism 130 of Fig. 9 consists of two main parts; a shoulder 132 having a fixedposition relative the tabletop 102 and being aligned such that an inner surface of theshoulder 132 is positioned such that the furniture frame assembly 50, when pressedagainst the inner surface, will have its desired open end position. In addition to theshoulder 132 the locking mechanism 130 also comprises a moveable locking member134 which is moveable from an idle position, which allows the furniture frameassembly 50 to be positioned between the shoulder 132 and the locking member 134when the furniture frame assembly 50 is positioned in its intrinsic open end position,and a locked position in which the locking member 134 presses the furniture frameassembly 50 against the shoulder 132.
    In Fig. 9 the locking mechanism 130 shown to the left is arranged in an idleposition, i.e. when the locking member 134 is positioned in the idle position. In thisposition the furniture frame assembly 50 is opened to its maximum end position by apurely pivoting action, i.e. slightly less than the desired open end position. When thelocking member 134 is moved in the direction of the arrow the furniture frame assembly50 will be exposed to a pressing force and hence the fumiture frame assembly 50 isurged to move to a pressurized position, shown to the right in Fig. 9. The lockingmember 134 may e. g. be guided by sliding rails, grooves, etc in the tabletop 102 and asnap-locking may be provided at the end position of the locking member 134, i.e. at theposition where the furniture frame assembly 50 is pressed against the shoulder 132.
    The shoulder 132 may extend along the fumiture frame assembly 50 at least tosome extent, and the centre position of the shoulder 132 may preferably coincide withthe centre position of the furniture frame assembly 50. This means that the fixed axis ofrotation of the fumiture frame assembly 50 should preferably be arranged within the longitudinal extension of the shoulder 132. In a similar manner the locking member 134 may extend along the furniture frame assembly 50 at least to some extent, and the centreposition of the locking member 134 may preferably coincide with the centre position ofthe furniture frame assembly 50. This means that the fixed axis of rotation of thefurniture frame assembly 50 should preferably be arranged within the longitudinalextension of the locking member 134.
    Another embodiment of the locking mechanism is shown in Fig. 10. Here, thelocking mechanism 130 is provided as a longitudinal groove 136 extending at the underside of the tabletop 102. When the furniture frame assemblies 50 are to be arranged intheir desired open end positions a user may manually urge the fumiture frameassemblies 50 outwards until the open end position angle ß, e.g. l80°, ensures that themembers of the furniture frame assembly 50 are aligned With the respective groove 136.Upon this the tabletop 102 will sink downwards such that the grooves 136accommodate the upper part of the fumiture frame assemblies 50. The width of eachgroove 136 should be dimensioned such that there is no or very little slack for thefurniture frame assembly 50 to move inside the groove 136. The force acting on thefumiture frame assemblies 50 will thus be constant until a user manually pulls thetabletop 102 upwards for allowing the furniture frame assemblies 50 to retum to its non-pressurized state, i.e. to its intrinsic open end position. ln Fig. 11 a yet further alternative for a locking mechanism 130 is shown. Thelocking mechanism 130 includes a shoulder 132 in a similar manner as previouslydescribed with reference to Fig. 9. In addition to the shoulder 132 a moveable lockingmember 138 is provided, however this locking member 138 is moving in a directionbeing perpendicular to the moving direction of the locking member 134 of Fig. 9. As isbest shown to the right in Fig. 11 the locking member 138 is moveable along a guidingtrack 139, e. g. being provided as a groove or protrusion in the tabletop 102. Initially thelocking member 138 is arranged in an end position allowing the furniture frameassembly 50, opened to its intrinsic end position, to be positioned relative the tabletop102. The locking member 138 is then moved towards the centre of the fumiture frameassembly 50 along the track 139, thus coming into contact with the furniture frameassembly 50 and urging the furniture frame assembly 50 to open further. Optionally auser may urge the furniture frame assembly 50 to open further using one hand, whileusing the other hand to move the locking member 138. The locking member 138 ismoved until it reaches a position where it covers a part of both second members 14a,14b of the furniture frame assembly 50. This position is shown to the left in Fig. 1 1. Atthis position the fumiture frame assembly 50 is pressed against the shoulder 132, thusforming a rigid connection link between the two supports to which the furniture frame assembly 50 is attached to. The resulting force from the fumiture frame assembly 50 11 acts against the locking member 138, but since the locking member 138 is only allowedto move perpendicular to the direction of the resulting force it will remain at the lockingposition until a user manually moves the locking member 138 back to its idle position.
    In Fig. 12 another alternative for a locking mechanism 130 is shown. Here, thelocking mechanism 130 is provided in the furniture frame assembly 50 itself, meaningthat no additional details for achieving a locking action of the furniture frame assembly50 are required at surrounding constructional parts. The furniture frame assembly 50 isprovided with a sliding locking member 140 which is moveable along guiding tracks142 on the second member l4a of the first furniture frame l0a. The second member l4bof the second furniture frame 10b is also provided with guiding tracks 144 which arealigned with the guiding tracks 142 when the two members l4a, l4b are moved to itsdesired open end position. In this position a user may move the locking member 140along the guiding tracks 142, 144 until it reaches a position where the locking member140 covers a portion of the second members l4a, l4b, indicated by the dashed lockingmember 140 in Fig. 12. At this position the position of the fumiture frame assembly 50is fixed, as the locking member 140 prevents the fumiture frame assembly 50 to flexback to its intrinsic open end position.
    The furniture frame assemblies 50 described above may be used with variouskinds of furniture. For some applications, such as the tables described above, thefurniture frame assemblies 50 may be connected to legs, of which some typicalexamples are shown in Fig. 13. A leg 40 may for example have a rectangular crosssection as is shown to the left in Fig. 13. The upper part of this leg 40 is formedintegrally with a first member 12 of a furniture frame 10. The adj acent leg 40 is formedas a frusto-conical body having a separate piece attached to it, whereby the separatepiece forms the first member 12 of a furniture frame 10. The next leg 40 is almostidentical to the previous leg 40, however the body is cylindrical instead of frusto-conical. The last leg 40 is shown without the first member 12. The leg body is hollowleaving the upper end open, whereby the open end forms means for inserting a firstmember 12 into it.
    So far various types of fumiture frames 10 have been described. Althoughshown mostly With reference to tables, the use of the principle of manufacturing pivotjoints 20 with a built-in error such that the furniture frames 10 can not be fully openedby pivotal movement only is applicable to various kinds of furniture, such as foldablechairs, sofas, etc. Further to this a furniture frame may not necessarily be limited to onlytwo moveable members; the furniture frame assembly 50could in practice be constructed by interconnecting more than two members by pivot connections, wherein 12 at least one of the pivot connections should be designed such that the intrinsic open endposition angle is slightly less than the desired open end position angle.
    In Fig. 14 a schematic overview of a method 300 according to an embodimentis shown. In a first step 302 a furniture frame 10 is provided. The furniture frame 10comprises at least two members 12, 14 being pivotally connected by means of a pivotjoint 20. In a next step 304 at least one of said members 12, 14 is moved by a pivotingaction to an intrinsic open end position of the pivot joint 20. This step should result in atotal length of the furniture frame 10 being slightly less than the desired total length ofthe fumiture frame 10. A subsequent step 306 is thereafter performed, in which a forceis applied to the furniture frame 10 urging it to open further, thus extending the totallength of the furniture frame 10. In a final step 308 locking of the furniture frame 10 isperformed such that the pressurized position of the furniture frame 10 is maintained.
    Although the present invention has been described above with reference tospecific embodiments, it is not intended to be limited to the specific form set forthherein. Rather, the invention is limited only by the accompanying claims.
    权利要求:
    Claims (8)
    [1] 1. A furniture frame (10) for an extensible table, comprising two members (12,14) being connected to each other by means of a pivot joint (20), wherein the members(12, 14) are moveable relative each other between a closed end position and a final endposition, and wherein the pivot joint (20) is configured such that the members (12, 14) are pivotallymoveable between the closed end position and an intrinsic end position, whereby theopening angle (ot) of the intrinsic end position is less than the opening angle (ß) of the final end position.
    [2] 2. The furniture frame (10) according to claim 1, wherein the pivot joint (20) isprovided with an angular stop (30) defining the maximum opening angle (ot) of theintrinsic end position between the members (12, 14).
    [3] 3. The furniture frame ( 10) according to any one of the preceding claims,wherein the opening angle (ot) of the final end position is 180°, and wherein the openingangle (ß) of the intrinsic end position is between 175° and 179°.
    [4] 4. The furniture frame (10) according to any one of the preceding claims,wherein one of said members (12) is fixed, whereby the other member (14) is moveable by means of the pivot joint (20).
    [5] 5. The furniture frame (10) according to any one of the preceding claims,wherein at least one member (14) forms part of a fumiture leg (40).
    [6] 6. A furniture frame assembly (50), comprising at least two fumiture frames(10, 10a, 10b) according to any one of the preceding claims, wherein one member (14a)of the first furniture frame (10a) is connected to one member (14b) of the secondfumiture frame (10b).
    [7] 7. The furniture frame assembly (50) according to claim 6, wherein theconnection between the two furniture frames (10a, 10b) is formed by means of a hinge(60).
    [8] 8. The furniture frame assembly (50) according to claim 6, wherein the connection between the two furniture frames (10a, 10b) is formed by means of a pivot 14 joint (20) such that the connected members (l4a, l4b) of the first and second furnitureframe (l0a, 10b) are moveable relative each other between a closed end position and afinal end position, and wherein the pivot joint (20) is configured such that the connectedmembers (l4a, l4b) of the first and second furniture frames (l0a, 10b) are pivotallymoveable between a closed end position and an intrinsic end position, Whereby theopening angle (ot) of the intrinsic end position is less than the opening angle (ß) of thefinal end position. 10. The furniture frame assembly according to any one of claims 6-9, furthercomprising a locking mechanism (130) for maintaining the final end position of theconnected members (l4a, l4b) of the first and second furniture frames (l0a, 10b). 11. The furniture frame assembly according to claim 10, wherein the lockingmechanism (130) comprises a shoulder (132) and a moveable locking member (134)configured to apply a pressing force to said connected members (l4a, l4b) of the firstand second furniture frames (l0a, 10b). 12. The furniture frame assembly according to claim ll, Wherein the lockingmember (130) is moveable in a direction being perpendicular to the longitudinaldirection of the fumiture frames (l0a, 10b). 13. The furniture frame assembly according to claim ll, wherein the lockingmember (130) is moveable in a direction being parallel with the longitudinal extensionof the fumiture frames (l0a, 10b). 14. The furniture frame assembly according to claim 10, wherein the lockingmechanism (130) comprises a groove (136) in which the connected members (l4a, 14b)of the first and second fumiture frames (l0a, 10b) will fit. 15. A fumiture side structure (100), comprising two furniture frame assemblies(50, 50a, 50b) according to any one of claims 6-14, wherein two members (l2a, 12b) of different furniture frame assemblies (50a, 50b) are rigidly connected. 16. A furniture, such as a table (100), comprising at least one furniture frame (10) according to any one of claims 1-5. 17. The furniture according to claim 16, wherein said furniture frame (10) forms part of a furniture frame assembly (50) according to any one of claims 6-14. 18. The furniture according to claim 17, Wherein said furniture frame assembly (50) forms part of a fumiture side structure (200) according to claim 15. 19. A method for extending a fumiture, such as a table, said methodcomprising: providing a furniture frame, comprising at least two members being pivotallyconnected by means of a pivot joint; moving at least one of said members by a pivoting action to an intrinsic endposition of the pivot joint, resulting in a total length of the fumiture frame being slightlyless than the desired total length of the furniture frame; applying a force to at least one of said two members urging the pivot joint toopen further, thus extending the total length of the fumiture frame; and locking the pivot joint such that said two members are forced towards eachother.
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    同族专利:
    公开号 | 公开日
    EP3478122A1|2019-05-08|
    WO2018004448A1|2018-01-04|
    CN109475227A|2019-03-15|
    EP3478122A4|2019-11-27|
    SE541274C2|2019-06-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR388140A|1908-03-13|1908-08-03|Jean Baptiste Leon Boucher|Extension table deployment device|
    GB190910532A|1909-05-04|1910-02-24|Lewis Fullarton|Improvements in Extensible and Folding Tables.|
    DE2528505A1|1975-06-26|1977-01-13|Amtenbrink Paul|Table with fold away extension flaps - has flaps connected to top or wall by scissors links|
    US5826285A|1996-09-10|1998-10-27|Kolcraft Enterprises, Inc.|Play yard|
    US7748798B2|2006-10-25|2010-07-06|Kohler Co.|Collapsible furniture and braces useful therewith|
    CN101703346B|2009-10-28|2011-09-21|李福权|Folding table frame|
    CA2823471A1|2013-08-08|2015-02-08|David Hutchison|Expandable and collapsible table with nesting leaves|
    CN104739002A|2015-04-08|2015-07-01|成都得一实业有限公司|Foldable table with safety pins|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1650959A|SE541274C2|2016-07-01|2016-07-01|A furniture frame, and a table comprising such furniture frame|SE1650959A| SE541274C2|2016-07-01|2016-07-01|A furniture frame, and a table comprising such furniture frame|
    PCT/SE2017/050736| WO2018004448A1|2016-07-01|2017-06-30|A furniture frame, and a table comprising such furniture frame|
    EP17820664.5A| EP3478122A4|2016-07-01|2017-06-30|A furniture frame, and a table comprising such furniture frame|
    CN201780040803.1A| CN109475227A|2016-07-01|2017-06-30|Furniture frame and desk with this furniture frame|
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