Patent Publication Number: US-2022211176-A1

Title: Furniture element

Description:
BACKGROUND AND SUMMARY OF THE INVENTION 
     Exemplary embodiments of the present invention relate to a furniture element, in particular a shelf or shelving unit. 
     Furniture elements such as shelves or shelving units in which a support plate and a shelf guided thereon and simultaneously movable in rotation and translation are arranged are known, for example, from JP 10318669 or DE 10 2017 106 170 A1. 
     In particular, the support plate described in the latter publication has proven itself in practice. 
     In the case of such shelves or shelving units, there is often the problem of protecting the items stored on them from dirt on the one hand and allowing good accessibility to the items on the other. Furthermore, these shelves or shelving units must always be placed at a distance from side walls to allow them to be rotated without hitting the side wall. 
     Exemplary embodiments of the present invention are directed to a furniture element consisting of at least one bottom plate and a body, in particular a shelf or shelving unit, which equally ensures protection of the objects stored on or in the furniture element and good accessibility thereto. The furniture element is also to be further developed to enable further improved support of a body of the furniture element on a bottom plate and to be able to rotate furniture elements positioned on an interfering contour, such as a wall or in a corner. A body is a furniture component having a bottom and at least one closed side wall, behind which at least one storage element, for example a shelf, is arranged. 
     The furniture element comprises a bottom plate arranged on a body of the furniture element. 
     Bearing surfaces of the body and bottom plate facing each other have respective raceways in which rolling elements are guided. 
     The body of the furniture element can be moved relative to the bottom plate from an initial position to an intermediate position and further to an open position and back. 
     In the intermediate position, the body is rotated relative to the bottom plate in one direction of rotation and displaced in a predetermined direction. In the initial position and in the open position, the body is congruent with the bottom plate, i.e., it does not protrude beyond the dimensions of the bottom plate, but the body is rotated by 180° in each case. 
     In the event that the body in the initial position overlaps the bottom plate in dimensions, or vice versa, the same condition (same alignment/same overlap) is restored in the opening position, only with the body rotated by 180°. 
     If there is more than one raceway, one of the preferably two raceways of the bottom plate can be designed as a raceway open towards one edge of the bottom plate. 
     In the case of the furniture element, the at least one raceway of the bottom plate is in each case formed mirror-symmetrically with respect to an axis of symmetry running at an oblique angle to a side edge of the bottom plate. 
     In the case of the furniture element, at least one raceway of the bearing plate can additionally be formed mirror-symmetrically in each case with respect to an axis of symmetry running at an oblique angle to a side edge of the bearing plate. 
     Such a furniture element can be placed, for example, in a corner of a room consisting of two side walls at an angle to one another and turned out of this corner of the room in a simple manner, so that the furniture element is placed in an initial position, for example, in such a way that the furniture element is covered by side walls of the body and, in an opening position turned through 90° or 180°, for example, is turned out of the corner in such a way that the at least one storage level of the furniture element is freely accessible by a user. 
     Such a furniture element according to the invention, standing against a wall of a room or in a corner of a room, can be moved from a position closed by side walls of the body of the furniture element to an open position by turning while maintaining the same basic position. 
     Thus, an at least partially combined translation-rotation movement of the furniture element enables access to the contents of the furniture element in a simple manner. The proportions of translation and rotation in the overall movement can vary depending on the design of the raceways over the course of the movement. 
     Unlike conventional furniture elements, there are no obstructing doors, flaps or front panels in the access position that can hinder access. 
     According to an advantageous embodiment of the furniture element, the axis of symmetry extends at an angle of 45° to a side edge of the bottom plate and/or the bearing plate. 
     In particular, this allows the furniture element to rotate about an axis perpendicular to the plane of the raceways out of a right-angled corner of the room, wherein the furniture element performs a rotational movement of 45° to a side edge of the bottom plate with at least partial simultaneous translation. 
     According to one embodiment variant, a base of the body has a recess on its side facing the bottom plate, in which a bearing plate is fastened, in whose side facing the bottom plate at least one raceway is formed. Alternatively, the bearing plate can also be formed integrally with the base of the body. 
     This enables a furniture element, which was previously equipped without the possibility of translational-rotational movement, to be easily fitted and, if necessary, retrofitted with such a bearing plate and the components connected to it to enable such a translational-rotational movement. 
     According to a further embodiment variant, the raceways formed in the bearing surface of the body are designed as closed, circumferential raceways and thus enable reliable guidance of the rolling elements. 
     Preferably, the bottom plate, the bearing plate, the rolling elements, and the rolling element cage form a translational-rotational bearing. Such a translational rotational bearing can be provided as a kit and can in particular also be integrated subsequently into the base of a furniture element. 
     Preferably, the furniture element can have a body having at least one closed side wall. This body can be designed in such a way that, in an initial situation, the contents of the furniture element are concealed and thus kitchen utensils, such as a coffee machine or kettle, can easily “disappear” when not in use. 
     This allows a very aesthetic design of the kitchen or other living or working rooms or bathrooms, as well as their furniture. This is especially beneficial in open space concepts and meeting rooms. 
     According to a further embodiment variant, the body of the furniture element has a plurality of storage levels, thereby multiplying the storage space of the furniture element in a simple manner. 
     According to a further embodiment, the rolling elements are captively accommodated in at least one rolling element cage, which in particular facilitates mounting of the rolling elements between the raceways. 
     According to a further embodiment variant, a further translational-rotational bearing is fixed to a cover plate of the furniture body. This enables, in particular, the arrangement of such a furniture element in a piece of furniture such as, for example, a cooking island or, for example, also in a corner of a kitchen furniture structure which is open on two sides. This ensures good running behavior of the furniture element and prevents it from tilting. 
     In particular, such an arrangement has the advantage over a pharmacist&#39;s drawer that by guiding the furniture element via two such bearings, simultaneous approach of the furniture element in both bearings, in particular at the bottom and at the top, is realized. 
     In such an arrangement of two bearings on a furniture element, also known as a “tandem arrangement”, it is important to maintain a suitable ratio of the overall height or the distance between the bearings to the diameter of the bearing or the curved tracks formed in the bearing. If the ratio is unfavorable, for example if the diameter of the bearings is small and the distance between the bearings is large, tilting can easily occur, since it is not always possible to ensure that the upper and lower bearings run loose at the same time. 
     In addition, exclusively linear guidance of the rolling elements, as in the case of the pharmacist&#39;s drawer, can easily lead to tilting of the furniture element. In contrast, the combined translational and rotational motion reduces tilting because the rolling elements are guided over the entire surface. 
     According to a preferred embodiment variant, the raceways formed in the bearing plate form at least one outer raceway and one inner raceway. 
     According to a preferred further development, a third raceway is formed between the outer raceway and the inner raceway. Such a third raceway serves to perform additional functions such as, in particular, limiting the rotation of the furniture element. In this case, such a third raceway must also be formed in the bottom plate. 
     According to a further embodiment variant, a fixing device is provided on the body of the furniture element for vertical fixing of the bottom plate. 
     According to a further embodiment variant, the bottom plate has a slot into which a guide sleeve protrudes from the underside of the base facing the bottom plate and thus guides the translational movement. Particularly in the case of asymmetrical loads, this ensures a permanent connection between the bearing plate and the bottom plate, and thus the functionality of the bearing. 
     A piece of furniture according to the invention comprises a body having a plurality of side walls and/or partitions and a cover plate. At least one furniture element as described above is arranged in the furniture according to the invention. 
     Particularly preferably, the furniture element is arranged in a corner area of the furniture. 
     Particularly preferably, such furniture elements are arranged in at least two corner areas of the furniture. 
     A further piece of furniture according to the invention comprises at least two furniture elements according to the invention, which are arranged in a tandem arrangement with translational-rotational bearings as described above, and a cover plate which covers the at least two furniture elements. This piece of furniture explicitly avoids the use of rigid side or partition walls to connect the base to the cover plate. Thus, the cover plate is supported exclusively by the at least two furniture elements according to the invention, and the stability of the furniture is ensured by the bearing of the built-in at least two furniture elements. This makes it possible, in particular, to arrange such a furniture element in a free-standing piece of furniture. 
     In a preferred variant, a further piece of furniture according to the invention having a first body and a furniture element comprises a body that can be placed in a fixed position on a floor by friction. 
     Such a piece of furniture can be used, for example, as a table, in particular a desk or also as a kitchen worktable, in which the furniture element can be moved relative to the fixed furniture body with the aid of the translational-rotational bearing relative to the fixed furniture body from a position of the furniture element covering the body into a position of the furniture element not completely covering the body and back. 
     For example, in the open position, the furniture element can be aligned perpendicularly to the fixed furniture body. A first lifting device can additionally be attached to the body. 
     In this case, the furniture element can have a second lifting device that can be synchronously actuated with the first lifting device, wherein the translational-rotational bearing of the furniture element is mounted on the first lifting device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWING FIGURES 
       Preferred embodiment variants are explained in more detail below with reference to the accompanying drawings, wherein: 
         FIG. 1  shows a schematic perspective view of an embodiment variant of a furniture element according to the invention, arranged in a corner of a room, 
         FIG. 2  shows a representation of the furniture element corresponding to  FIG. 1  in a position rotated out of the corner of the room by an angle, 
         FIG. 3  shows a representation of the furniture element corresponding to  FIG. 1  in an open position rotated by 180°, 
         FIG. 4  shows a perspective view of the furniture element shown in  FIGS. 1-3  with the bottom plate removed to show the raceways, 
         FIG. 5  shows a top view of an alternative embodiment variant of a raceway design and correspondingly adapted rolling element cage, 
         FIG. 6  shows a top view of further alternative embodiment variants of rolling element cages, 
         FIG. 7  shows a perspective exploded view of an alternative embodiment variant of a furniture element according to the invention, accommodated in a furniture body, having two bearings allowing a combined translational-rotational movement, 
         FIGS. 8-11  show perspective views of the embodiment variant according to  FIG. 7  in different positions, 
         FIG. 12  shows a perspective view of the embodiment variant according to  FIG. 7  in the position shown in  FIG. 8  with only dashed contours of the furniture body, 
         FIGS. 13-15  show schematic top views of the furniture body according to  FIGS. 8 to 11  to show possible arrangements of the furniture element according to  FIG. 7  in the furniture body, and 
         FIGS. 16-22  show schematic views of a further alternative embodiment variant of a furniture element according to the invention, which can be moved in translation and rotation relative to a furniture body. 
     
    
    
     DETAILED DESCRIPTION 
     In the following figure description, terms such as top, bottom, left, right, front, rear, etc. refer exclusively to the exemplary representation and position of the furniture element, body, raceways, bottom plate, rolling elements and the like selected in the respective figures. These terms are not to be understood restrictively, i.e., these references may change due to different working positions or the mirror-symmetrical design or the like. 
     In  FIGS. 1 to 4 , a first variant of a furniture element according to the invention is designated by the reference sign  2 . 
     In  FIGS. 7 to 15 , the reference sign  3  indicates an alternative embodiment variant of a furniture element. 
     In  FIGS. 16 to 22 , the reference sign  12  indicates a further alternative embodiment variant of a furniture element. 
     The furniture element  2  shown in  FIGS. 1 to 4  is designed by way of example as a shelf having a square base and three storage compartments. 
     The furniture element  2  comprises a body  22 , having a base  23  and a plurality of shelves  25 . The uppermost of the shelves  25  here forms the top of the shelf, so that the latter is designed to be closed at the top. 
     The body  22  of the furniture element  2  further comprises two side walls  24 , which enclose the furniture element  2  from two sides. 
     The furniture element  2  further comprises a bottom plate  21  arranged on the body  22 , in this case on the base  23  of the furniture element  2 . 
     Bearing surfaces of the body  22  and the bottom plate  21  facing one another have respective raceways  27 ,  28  in which rolling elements  51  are guided, which serve for the movable bearing of the body  22  relative to the bottom plate  21 . 
     In the first exemplary embodiment, according to  FIG. 4 , the raceways  27  associated with the body  22  are arranged on a bearing plate  26 , which is fixed to the base  23  of the body  22 . However, the bearing plate  26  can also be an integral part of the base  23 . 
     The rolling elements  51  are mounted in a rolling element cage  5 , which in the embodiment variant shown here is designed as a square-shaped frame having a total of eight rolling elements  51  mounted therein, preferably designed as balls. 
     Depending on the degree of surface pressure and thus the forces acting on the rolling elements  51 , it is conceivable to vary the number and/or the diameter of the rolling elements  51  in order to achieve a desired surface pressure. 
     The rolling elements  51  are arranged in the corners of the rolling element cage  5 , which is designed as a square frame, respectively for improved support of the body  22  relative to the bottom plate  21 . Four further rolling elements are placed centrally on the respective sides of the rolling element cage  5 . 
     While the raceways  27  on the underside of the bearing plate  26  facing the bottom plate  21  are formed as closed, circumferential raceways, the preferably two raceways  28  of the bottom plate  21  are each formed mirror-symmetrically to an axis of symmetry extending at an oblique angle, preferably 45° to a side edge of the bottom plate  21 . 
     In the embodiment variant shown here, the axis of symmetry extends parallel to the side edge of the bottom plate  21 . 
     One of these two raceways  28  is formed as a closed, circumferential raceway. The second of these raceways  28  is designed in such a way that ends of this raceway open into two side edges of the bottom plate  21  which are at an angle to each other and are thus designed as open raceways. 
     The choice of an open and a closed raceway thereby enables sufficient stabilization of the furniture element  2  both at rest and during rotation of the furniture element  2 , provided that a surface overlap between the bottom plate  21  and the body  22  of the furniture element  2  is at least 50% in each position. 
     If the surface overlap between the bottom plate and the body of the furniture element  2  is less than 50% in any position, more than one open raceway is necessary to ensure sufficient stabilization of the furniture element  2  both at rest and during rotation of the furniture element  2 . 
     In general, sufficient stabilization of the furniture element  2  both at rest and during rotation of the furniture element  2  is possible by varying the type and number of raceways, the orientation and positioning of the raceways relative to the desired direction of the translational movement and, optionally, further supporting functional elements such as the fixing device  7  mentioned further below. 
     This design of the raceways  28  and of the bottom plate  21  enable the body  22  of the furniture element  2  to be rotated out of a room corner  4  shown schematically in  FIGS. 1 to 3 , consisting of a base  41  on which the bottom plate  21  of the furniture element  2  rests and two side walls  42 ,  43  which are aligned at right angles to one another here, wherein two of the side edges of the bottom plate  21  are positioned close to the side walls  42 ,  43 , so that the furniture element  2  is positioned overall in the room corner. 
     The rotation and translation of the body  22  relative to the bottom plate  21  made possible by the raceways  28  in the bottom plate  21  and the raceways  27  in the bearing plate  26  and the rolling elements  51  arranged between them allows the furniture element  2  to be positioned in the corner of the room  4  in an initial position shown in  FIG. 1 . At the same time, the furniture element  2  is closed, i.e., covered by the side walls  24 , which prevents access to objects stored in the furniture element  2  or protects them from dust or splashing water and gives an aesthetic impression of the furniture element  2 . 
     By rotating the body  22  relative to the bottom plate  21  from this initial position, the furniture element  2  is opened, i.e., the side walls  24  of the body  22  are moved during the rotation into a position in which the side walls  24  are arranged directly opposite the side walls  42 ,  43 , so that objects stored in the furniture element  2  are now freely accessible. 
     The design of the raceways  27 ,  28  makes it possible for the furniture element  2  to be positioned with its base  23  congruent with the bottom plate  21  again in the opening position shown in  FIG. 3 . 
     Only in the intermediate position shown in  FIG. 2  is the base  23  of the furniture element  2  pivoted towards the bottom plate  21 . 
     To further stabilize the translational and rotational movement of the body  22  relative to the bottom plate  21  and to fix the bottom plate  21  to the body  22 , the bottom plate  21  has a slot  29  that is aligned in the direction of the axis of symmetry of the raceways  28  of the bottom plate  21 . A guide sleeve  71  projects into this slot  29  and is fixed by a screw  72  projecting from the underside of the base  23  facing the bottom plate  21 . 
     This screw  72  is centrally positioned in the base  23  of the body  22  of the furniture element  2 . 
     Other fixing options are also conceivable, such as latching, clamping, pressing in, gluing, screwing or the like. 
     For use, the furniture element  2  positioned in the corner of the room  4  in  FIG. 1  can thus also be moved out of the corner of the room  4  in direction A and essentially simultaneously rotated by turning about a position-variable vertical axis of rotation from the initial position shown in  FIG. 1  in a direction of rotation M 1 , M 2  into the open position shown in  FIG. 3 . In this case, the proportions of translation and rotation in the overall movement can vary over the course of the movement. 
     As shown in  FIG. 5 , in an alternative embodiment variant, a third raceway  28   c  is integrally formed in the bottom plate  21  and in the bearing plate  26  in addition to an outer raceway  28   a  and an inner raceway  28   b.    
     Such a third raceway  28   c  enables further functions in the translational-rotational movement of the furniture element  2 ,  3 . 
     The third raceway  28   c , which in  FIG. 5  follows a section of the outer raceway  28   a  radially further inwards from the origin of the rotational movement, serves here to limit the rotation of the furniture element. 
     In order to make this possible, the rolling element cage  5 ′ shown in the middle of the three illustrations in  FIG. 5 , which here is approximately square in shape with slightly radially inwardly curved sides, is formed with recesses for rolling elements  51 , which are arranged in the outer corners of the rolling element cage  5 ′, for rolling elements  51  which can be moved in the outer raceway groove  28   a . These rolling elements  51  are arranged on an outer circle K 1 . 
     Receptacles for further rolling elements  51  are integrally formed approximately centrally in the sides of the rolling element cage  5 ′, which rolling elements  51  are movable in the inner raceway groove  28   b . These rolling elements  51  are arranged on an inner circle K 2 . 
     The rolling element  51  to be guided in the third raceway  28   c  is provided radially inside one of the rolling elements  51  arranged in the corners of the rolling element cage  5 ′. This rolling element  51  is arranged on a central circle K 3 . 
     The axes of symmetry SK 2 , of the rolling element arrangement  51  on the circle K 1  are inclined by 45° to the axes of symmetry SK 2  of the rolling element arrangement  51  on the circle K 2 . 
     As can be seen in the lower representation of  FIG. 5 , inner raceway grooves  27   a  and outer raceway grooves  27   b  are also integrally formed in the bearing plate  26 , as well as a further third raceway groove  27   c , which is also formed relative to a portion of one of the outer raceway grooves  27   b  radially further inward toward the origin of rotation U. 
     As can further be seen in this figure, the raceways  27   a  and  27   b  are shaped to be symmetrical with respect to both an axis of symmetry S 1 , which is vertical here, and a horizontal axis of symmetry S 2 . 
       FIG. 6  shows further embodiment variants for rolling element cages  5 ,  5 ″ with rolling element receptacles arranged in such a way so as to be disposed accordingly on an outer circle K 1  and on an inner circle K 2 . 
       FIGS. 7 to 15  show a further embodiment variant of a furniture element  3  according to the invention. 
     As shown in the exploded view in  FIG. 7 , in contrast to the embodiment variant of the furniture element described on the basis of  FIGS. 1 to 4 , a translational-rotational bearing  6  is arranged in each case both below a base  33  of the body  32  of the furniture element  3  and above a cover plate  31  of the furniture body  32  of the furniture element  3 , wherein the upper bearing  6  is arranged with the bottom plate  61  facing upwards. 
     Both the base  33  and the cover plate  31  form a cavity in this case with an upper edge and a lower edge of the furniture body  32 , in which at least part of the bearing  6  is accommodated. 
     The essential structure of the two bearings  6  is essentially the same as that described with reference to  FIGS. 1 to 4 . In this exemplary embodiment, too, there is a fixing device  7  having a screw  72  and a guide sleeve  71  and a rolling element cage  62  having rolling elements  66 . 
     In this case, the bottom plate  61  corresponds to the bottom plate  21 , and the bearing plate  63  corresponds to the bearing plate  26 . In the application of the furniture element  3  shown in  FIG. 7 , this element can preferably be used in a piece of furniture  8  as shown in  FIGS. 8 to 15 . 
     The piece of furniture  8  shown in  FIGS. 8 to 15  is here, for example, kitchen furniture in the form of a cooking island. However, other places of use for such a furniture element  3  are also conceivable. 
     In order to adapt the bottom plate  61  of the translational-rotational bearing  6 , which is fixed below the base  33  of the furniture element  3 , to the height of the bases of the other components of the piece of furniture  8 , feet  68  are attached to a lower side of the bottom plate  61  facing away from the raceways  64 . These feet  68  can be designed to be adjustable. 
     The bearing plate  63  is preferably attached to the underside of the base  33  of the body  32  of the furniture element  3  facing the bottom plate  61 . It would also be conceivable here to work the raceways  65  directly into the underside of the base  33  instead of the bearing plate  63 . 
       FIG. 8  shows the piece of furniture  8  in the form of an island unit having a cover plate  81 , several side walls  83  and a base panel  82  with a furniture element  3  arranged in a corner in the closed state of the furniture element  3 . The feet  68  are arranged behind the base panel  82 . 
       FIG. 9  shows the furniture element  3  in a slightly open position,  FIG. 10  shows the furniture element  3  in an almost fully rotated open position and  FIG. 11  shows the piece of furniture  8  with the furniture element  3  fully open. 
     In  FIG. 12 , the piece of furniture  8  is still shown with dashed lines, to show the furniture element  3  installed in the piece of furniture  8  below the cover plate  81 . 
       FIGS. 13 to 15  show possible embodiment variants of such a piece of furniture with one furniture element  3  ( FIG. 13 ), two such furniture elements  3  ( FIG. 14 ) and four such furniture elements  3  ( FIG. 15 ). When arranging a plurality of furniture elements  3 , preferably only one common cover plate  81  is used. 
       FIGS. 16 to 22  show a further embodiment variant of a piece of furniture  10  according to the invention with a furniture element  12  which is movable in translation and rotation relative to a furniture body  11  standing fixedly or frictionally on a floor of a room. 
     The piece of furniture  10  is designed, as shown in particular in  FIGS. 16 and 20 to 22 , as desk furniture or kitchen island or kitchen worktable or the like, with the furniture body  11  fixedly placed on the room floor and the furniture element  12  which can be moved in translation and rotation relative to the furniture body  11 . 
     As shown in  FIGS. 17, 21 and 22 , the furniture body  11  includes a receptacle  112  in a central region of a work surface  111  for accommodating a first lifting device  13 . 
     The lifting device  13 , designed here as a telescopic lifting device, is accommodated in the receptacle  112  of the furniture body  11 , wherein telescopic elements  131 ,  132 ,  133  are movable upwards out of the receptacle  112 . 
     A support plate  134  is mounted on the uppermost of the telescopic elements  133 . A bottom plate  91  of a further embodiment variant of a translational-rotational bearing  9  is mounted on this support plate  134 . 
     As shown by way of example in  FIG. 17 , the furniture element  12  has a body  121  with a worktop, to the base of which the bearing plate  93  of the translational-rotational bearing  9  is attached. 
     A side part  122  is arranged, in particular fastened, at one end of the body  121 , which side part  122  has a central receptacle for accommodating a second lifting device  16 . 
     The structure of the second lifting device  16  preferably corresponds to that of the first lifting device  13 , i.e., it also has a first, a second and a third telescopic element  161 ,  162 ,  163 . 
     A foot  165  with at least two rolling elements  166  is arranged on the lowest, first telescopic element  161  of the lifting device  16 . 
     The side part  122  thus serves as a second support leg of the furniture element  12  for the lifting device  16  arranged thereon. 
     The furniture element  12  is thus supported on the one hand by the side part  122  and the second lifting device  16  arranged thereon and via the first lifting device  13 . 
     The lifting device  13  thereby supports the body  121  of the furniture element  12  via the translational-rotational bearing  9  accommodated therebetween. 
     The furniture element  12  can thus be moved from an initial position shown in  FIG. 16 , in which the furniture element  12  covers the furniture body  11 , here completely, by synchronous actuation of the lifting devices  13 ,  16 , with which the furniture element  12  can be lifted relative to the furniture body  11 , to the open position shown in  FIG. 20 . 
     In the open position, the upper side of the body  121  of the furniture element  12 , which serves here as a work surface, is aligned perpendicularly to the work surface  111  of the furniture body  11 . Other opening positions are also conceivable. Depending on the orientation and embodiment of the translational-rotational bearing  9 , the furniture element  12  can be moved through a larger or smaller angle, for example 180°. 
     The arrangement of the translational-rotational bearing  9  on the support plate  134  of the first lifting device  13  makes it possible to move the furniture element  12  from the position shown in  FIG. 16  to the position shown in  FIG. 20  when the furniture body  11  is located in a corner of the room, without the furniture element  12  protruding over a rear edge of the furniture body  11  during the movement. This is very advantageous when the furniture body  11  is arranged against a wall or in a corner. 
     The translational-rotational bearing  9  shown in  FIG. 17  is shown in detail in  FIGS. 18 and 19 . 
     As shown in  FIGS. 18 and 19 , the bottom plate  91  also has raceways  94  on its bearing surface facing the bearing plate  93  for guiding rolling elements  51 , here in the form of balls. 
     The rolling elements  51  are also captively accommodated in a rolling element cage  92 . As in the embodiment variant shown in  FIG. 7 , the rolling element cage  92  is circular with several arms extending radially outward. 
     A guide channel  97  is also provided here centrally and diagonally to two side edges of the bottom plate  91  which are aligned at right angles to each other. 
     A guide carriage  151  is displaceably mounted in this guide channel  97 . 
     The guide carriage  151  as part of a fixing device  15  comprises, on its upper side facing the bearing plate  93  or the body  121  of the furniture element  12 , a bearing neck  152  projecting into an opening  99  in the bearing plate  93 , which is preferably integrally formed on the upper side of the guide carriage  151 . 
     The bearing neck  152  serves as an axis for a rolling bearing ring  157 , in particular a ball bearing ring, inserted into the opening  99  of the bearing plate  93 , which is preferably in the form of a bore, by means of which low-friction rotational movement of the bearing plate  93  relative to the guide carriage  151  and thus relative to the bottom plate  91  is made possible. 
     A roller bearing having at least two rollers  154  arranged one behind the other in the longitudinal direction of the guide channel  97  is arranged, in particular fastened, on the underside of the guide carriage  151  facing away from the bearing plate  93 . 
     Each of these rollers  154  has a circumferential V-shaped groove  155  into which V-shaped webs  95 , which protrude from opposite side walls of the guide channel  97 , form running faces for the rollers  154 . 
     The V-shaped grooves  155  of the rollers  154 , which are guided along the V-shaped webs  95  in the guide channel  97 , produce an extremely stable and constant sequence of the translational-rotational movement of the furniture element  12 . 
     In addition, a push-to-move mechanism in the form of an ejector element  14  is shown in  FIG. 18 , which consists of a force accumulator  141  and a plunger  142  and is arranged in the guide channel  97  in order to eject the furniture element  12  after unlocking in a direction of movement. 
     The use of such a push-to-move mechanism makes it possible in particular to design the furniture element without an actuating handle and to initiate the opening movement of the furniture element by pushing it in against the intended opening direction. The use of an ejection mechanism that can be activated in another way is also conceivable. 
     Alternatively, the piece of furniture can also be designed as desk furniture or kitchen island or kitchen worktable or the like, without an additional second lifting device on the furniture element  12 . In this case, the furniture part which is movable in a translation-rotational manner is supported only by the first lifting device arranged on the stationary furniture body. 
     Although the invention has been illustrated and described in detail by way of preferred embodiments, the invention is not limited by the examples disclosed, and other variations can be derived from these by the person skilled in the art without leaving the scope of the invention. It is therefore clear that there is a plurality of possible variations. It is also clear that embodiments stated by way of example are only really examples that are not to be seen as limiting the scope, application possibilities or configuration of the invention in any way. In fact, the preceding description and the description of the figures enable the person skilled in the art to implement the exemplary embodiments in concrete manner, wherein, with the knowledge of the disclosed inventive concept, the person skilled in the art is able to undertake various changes, for example, with regard to the functioning or arrangement of individual elements stated in an exemplary embodiment without leaving the scope of the invention, which is defined by the claims and their legal equivalents, such as further explanations in the description. 
     LIST OF REFERENCE SIGNS 
     
         
           2  Furniture element 
           21  Bottom plate 
           22  Body 
           23  Base 
           24  Side wall 
           25  Shelf 
           26  Bearing plate 
           27 ,  27   a .  27   b ,  27   c  Raceway 
           28 ,  28   a ,  28   b ,  28   c  Raceway 
           29  Slot 
           3  Furniture element 
           31  Cover plate 
           32  Body 
           33  Base 
           34  Side wall 
           35  Shelf 
           4  Room corner 
           41  Base 
           42  First side wall 
           43  Second side wall 
           5 ,  5 ′,  5 ″ Rolling element cage 
           51  Rolling elements 
           6  Translational-rotational bearing, bearing 
           61  Bottom plate 
           62  Rolling element cage 
           63  Bearing plate 
           64  Raceway 
           65  Raceway 
           66  Rolling elements 
           67  Slot 
           68  Foot 
           7  Fixing device 
           71  Guide sleeve 
           72  Screw 
           8  Piece of furniture 
           81  Cover plate 
           82  Base panel 
           83  Side wall 
           9  Translational-rotational bearing, bearing 
           91  Bottom plate 
           92  Rolling element cage 
           93  Bearing plate 
           94  Raceway 
           95  Web 
           97  Guide channel 
           99  Opening 
           10  Piece of furniture 
           11  Furniture body 
           111  Work surface 
           112  Receptacle 
           12  Furniture element 
           121  Body 
           122  Side part 
           13  Lifting device 
           131  First telescopic element 
           132  Second telescopic element 
           133  Third telescopic element 
           134  Support plate 
           14  Ejector element 
           141  Force accumulator 
           142  Plunger 
           15  Fixing device 
           151  Guide carriage 
           152  Bearing neck 
           154  Roller 
           155  Groove 
           157  Bearing ring 
           16  Second lifting device 
           161  First telescopic element 
           162  Second telescopic element 
           163  Third telescopic element 
           165  Foot 
           166  Roller element 
         A Direction 
         K 1 , K 2 , K 3  Circle 
         R 1 , R 2  Direction of rotation 
         S 1 , S 2  Axis of symmetry 
         SK 1 , SK 2  Axis of symmetry 
         U Origin of rotation