EP0663164B1 - Piece of furniture with a stationary board and at least two supplementary boards - Google Patents
Piece of furniture with a stationary board and at least two supplementary boards Download PDFInfo
- Publication number
- EP0663164B1 EP0663164B1 EP94100586A EP94100586A EP0663164B1 EP 0663164 B1 EP0663164 B1 EP 0663164B1 EP 94100586 A EP94100586 A EP 94100586A EP 94100586 A EP94100586 A EP 94100586A EP 0663164 B1 EP0663164 B1 EP 0663164B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- board
- piece
- supplementary
- stationary
- attachment plate
- 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.)
- Expired - Lifetime
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- 230000013011 mating Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 2
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B1/00—Extensible tables
- A47B1/04—Extensible tables with supplementary leaves or drop leaves arranged at the periphery
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B17/00—Writing-tables
- A47B17/06—Writing-tables with parts, e.g. trays, movable on a pivot or by chains or belts
- A47B17/065—Pivotally mounted auxiliary tables
Definitions
- the invention relates to a piece of furniture with a stationary plate and with at least two attachment plates, which are mounted around a bearing axis located outside the attachment plate contour by guide means at a stationary bearing point of the piece of furniture and around the bearing point between a rest position located below the stationary plate and one aligned with the plate height
- the enlargement position can be swiveled and shifted in height parallel to the plate.
- a piece of furniture of this type is known from DE 42 07 743 A1, which is designed as a table that can be enlarged by a attachment plate, the attachment plate being mounted eccentrically on a table leg.
- the attachment plate is rigidly connected to a tubular sleeve pushed onto the table, the lower end edge of which rests on a pin which projects radially from the table leg.
- the end edge has a helical curve over its circumference, the slope of which is dimensioned such that the attachment plate is displaced in height when it is pivoted from a rest position below the table top into an enlarged position aligned with the table surface.
- the object of the invention is to provide a piece of furniture of the type mentioned, which has improved options for shape and size design.
- the at least two attachment plates are in the rest position below the stationary plate in parallel in different planes one above the other and have guide means with different pitch, and in that each attachment plate is held by means of a support element, the areas of which are outside the attachment plate contour Do not cut the path of movement of the at least one other attachment plate.
- a table is particularly provided as a piece of furniture.
- the invention also relates to other pieces of furniture such as shelves, sideboards or the like in the same way. This makes it possible to provide two or more attachment plates for enlarging the stationary plate, which in the enlargement position attached to the stationary plate are at the same level as the latter and are thus flush with the plate surface.
- a major advantage of the invention is that completely new dimensions for the enlargement of plates are created.
- attachment plates in different planes makes it possible to provide attachment plates which are substantially enlarged compared to the prior art and which overlap in a top view in the rest position under the stationary plate. This also makes it possible to enlarge relatively wide tables over their full width using one-piece attachment plates. As a result of the superimposition of the attachment plates, the degree of enlargement of the stationary plate is no longer dependent on the overall length of the stationary plate under which the attachment plates are mounted, as in the prior art. A short table can also be enlarged over a large area by the invention.
- the attachment plates can be moved past one another during their pivoting movement without being blocked by protruding areas of the supporting element of the respective other attachment plate.
- Carrying arms, brackets, angles or the attachment plate which thicken over and above the top and bottom sides are provided as support elements.
- a support arm, which projects radially below this for holding the attachment plate, is therefore at most dimensioned only in such a way that its front end does not intersect the path of movement of the front contour of the other attachment plate.
- the radial length of the support arm is therefore less than the radius of the movement path of the other attachment plate.
- both attachment plates are mounted on one side of the stationary plate.
- the attachment plates are considerably thinner than the stationary plate. This makes it possible to arrange the attachment plates largely invisibly under the stationary plate in their rest position, since the small thickness of the attachment plates also means that the height of the space required for storage below the stationary plate is relatively small. It is thus possible to keep the overall height of a table comparatively low despite the mounting of the attachment plates below the table top, and yet to maintain sufficient legroom for people sitting at the table.
- the attachment plate is held on the support arm so that it can be adjusted in height. This makes it possible to adjust the attachment plate relative to the stationary plate in order to compensate for tolerances that could lead to different heights between the attachment plate and the stationary plate.
- the guide means of the bearing point for pivoting the attachment plate are arranged directly in the area of the stationary plate. Due to the arrangement of the guide means for pivoting the attachment plate directly in the area of the stationary plate, this does not necessarily have to be mounted on a table leg, in contrast to the prior art, in order to achieve a secure tubular storage by a sufficient guide length.
- the attachment plate therefore no longer necessarily has to be mounted on a leg which extends to the floor and which also serves to support the stationary plate.
- the attachment plate can thus also be provided for round tables which have a support foot only in the middle.
- the guide means are arranged in a cylindrical, upper region of a support leg supporting the stationary plate. Since the guide means are arranged in the upper area of the support leg, the rest of the area of the support leg can be designed freely, for example as a square profile or the like.
- the guide means are provided on a cylindrical bearing stub arranged on an underside of the stationary plate.
- This stopper-like bearing stump can be attached at any point on the underside of the stationary plate and is only used for mounting the attachment plate and not - as in the prior art - additionally as a supporting leg of the stationary plate. This configuration is particularly advantageous for round tables.
- At least one link guide and at least one link block engaging in it are provided as guide means, which are assigned to a stationary and a rotatable bearing part of the mounting of the attachment plate, at least part of the link guide having a ratio of the pivoting angle and height difference of the attachment plate between the rest and the enlargement position has a corresponding slope.
- the height of the tubular sleeve was namely required for guiding, in order to ensure that the lower end edge was pressed sufficiently against the table leg bolts and to prevent the attachment plate from tilting. It is particularly advantageous if the tilting load on the bearing point is absorbed in several sliding blocks, preferably three, distributed over the circumference of the bearing part.
- the mutually facing edge regions of the attachment plate and the stationary plate can be coupled to one another at a distance from the bearing point by means of a support device in the enlarged position.
- the attachment plate mounted on a corner area is additionally supported in the enlarged position by the coupling with the stationary plate, as a result of which sufficient stability is achieved even with larger attachment plates.
- attachment plates which correspond to the width of the stationary plate can also be used with relatively wide stationary plates. The possible variations in shape and size of the furniture are improved.
- the support device is provided with a locking element for locking the stationary plate and the attachment plate against one another. This prevents the attachment plate from being unintentionally pivoted back out of the enlarged position, and thus creating a gap between the edge regions of the stationary plate and attachment plate facing one another.
- the support device has two mutually corresponding connecting elements, one of which is assigned to the edge region of the attachment plate and the other to the edge region of the stationary plate, and which can be connected in a positive or non-positive manner by the pivoting movement of the attachment plate into the enlarged position.
- the attachment plate is locked onto the stationary plate in a simple manner by the pivoting movement of the attachment plate toward the stationary plate, so that additional manipulations are avoided.
- the support device has a stationary locking lever which can be pivoted in an inclined plane and which tangentially engages behind a crescent-shaped locking plate on the underside of the attachment plate during the pivoting movement for locking and supporting the attachment plate, the radius of the crescent moon being smaller than that Swing radius of the locking lever.
- the locking lever engages under and thus already supports vertically during its pivoting movement for supporting and locking the attachment plate, and that during the further pivoting movement it pulls the attachment plate onto the stationary plate and the attachment plate onto the surface aligned with the surface of the stationary plate Height presses.
- a table (1) according to FIGS. 1 and 2 has a rectangular table top (2) which is supported at its four corners by four table legs (3).
- the four table legs (3) have a cylindrical shape.
- the table legs (3) protrude on the opposite long sides of the table top (2) - seen in the plan view of FIG. 2 - partially under the table top (2).
- Two attachment plates (4, 4a) can be attached to the table top (2) on their opposite broad sides. Both attachment plates (4, 4a) have the same size and are rectangular.
- the length of the opposite long sides of the two attachment plates (4, 4a) corresponds to the width of the table top (2).
- the two attachment plates (4 and 4a) are about half as thick as the table top (2).
- both attachment plates (4 and 4a) are on the opposite Broad sides of the table top (2) attached to this.
- the attachment plates (4 and 4a) are aligned with the table top (2), ie the surface of the attachment plates (4 and 4a) serving as a standing surface is at the same level as the table surface of the table top (2).
- the result is a uniform table surface that is almost twice as large as the table surface of the Table top (2).
- the enlargement position is shown in FIGS. 1 and 2 with dash-dotted lines.
- Each attachment plate (4, 4a) is held on a V-shaped forked arm (5 or 5a). Each attachment plate is in its rest position, in which no table enlargement is required, below the table plate (2) (FIG. 1 and dashed representation of the attachment plate 4 in FIG. 2).
- the attachment plates (4 and 4a) are mounted on two table legs (3) which are adjacent to one another along a long side of the table plate (2) and can be pivoted horizontally. Each attachment plate (4 and 4a) is mounted on the respective table leg (3) outside the attachment plate contour in the area of a corner of each attachment plate (4, 4a).
- Each attachment plate (4, 4a) is held on the associated support arm (5, 5a) such that in the rest position of each attachment plate (4, 4a) the long sides of the attachment plate (4, 4a) are aligned parallel to the long sides of the table plate (2) are. Since the long sides of each extension plate (4, 4a), which correspond to the lengths of the broad side of the table top (2), are longer than half the length of the long side of the table top (2), the two extension plates (4 and 4a) overlap in their resting position .
- the corresponding table leg (3) serves as the bearing point for each attachment plate (4, 4a).
- Each attachment plate (4, 4a) can be pivoted horizontally about a central longitudinal axis of the respective table leg (3).
- the support arm (5) is rigidly connected to a tubular bearing sleeve (6) which coaxially surrounds the table leg (3), the support arm (5) projecting radially from the upper end region of the bearing sleeve (6).
- the support arm (5a) is rigidly attached to a tubular bearing sleeve (6a) which essentially corresponds to the bearing sleeve (6) and is mounted coaxially on the other cylindrical table leg (3). Both bearing sleeves (6 and 6a) are held axially movable on the respective table leg (3). Both bearing sleeves (6 and 6a) extend in the axial direction over a large part of the respective table leg (3).
- the large axial guide length of the two bearing sleeves (6 and 6a) prevents the attachment plates (4, 4a) from tilting or tilting.
- An end edge (7) of the lower end of the bearing sleeve (6) lies against a bolt (8) which projects radially from the table leg (3) and is rigidly connected to the table leg (3).
- the circumferential end edge (7) of the bearing sleeve (6) lies on the bolt (8) due to the weight of the attachment plate (4), support arm (5) and bearing sleeve (6) and is supported by the latter.
- the front edge (7) is designed as a curve that rises in such a way that the attachment plate (4) is shifted in height from the rest position below the table top (2) to the enlargement position at the level of the table top (2) when swiveled clockwise becomes.
- the pivoting and height displacement of each attachment plate (4, 4a) correspond to the principle described in DE 42 07 743 A1, so that reference is made to this prior art in this regard.
- the curve has no linear slope, so that it is ensured that the attachment plate (4) does not come into contact with the opposite attachment plate (4a) nor with the underside of the table plate (2) during the pivoting movement.
- this function is solved by an initially flat and then steeper gradient, the two different gradient sections merging seamlessly into one another.
- the attachment plate (4) is first pivoted out of the rest position at the same height via a certain pivoting angle, before a linear relative steeply rising curve section bridges the height to the table top (2).
- the guide means for pivoting and shifting the height of the attachment plate (4) namely the guide bolt (8) and the curve of the front edge (7), are located at the lower end of the table leg (3).
- the pivoting and shifting of the height of the attachment plate (4a) essentially corresponds to that of the attachment plate (4), a guide bolt (8a) and a front edge (7a) provided with a curve being provided as guide means in the region of the lower end of the table leg (3).
- the attachment plate (4a) is pivoted out to the same side (in the direction of arrow 24 in the direction of arrow 24) under the table top (2) as the attachment plate (4), the attachment plate (4a) is pivoted counterclockwise. It is advantageous in this embodiment that the table (1) with the opposite long side of the table top (2) can be positioned directly on a shoulder or a wall of a room, and yet the table (1) can be enlarged because both attachment plates ( 4, 4a) can be pivoted out on the opposite long side.
- the curves (7 and 7a) have different slopes in order to raise both attachment plates (4 and 4a) to the same level in the enlarged position.
- the curve (7a) is therefore flatter relative to the curve (7).
- the attachment plates (4 and 4a) are considerably thinner relative to the table top (2), which means that they only require a relatively small height below the table top (2). This ensures sufficient legroom even when the two attachment plates (4 and 4a) are in the rest position.
- the length of the two radially projecting support arms (5 and 5a) is dimensioned relative to the respectively opposite attachment plate (4 or 4a) so that the respective support arm (5, 5a) is not in the path of movement the opposite attachment plate (4, 4a).
- the length of the support arm (5, 5a) is thus dimensioned less than the radius of the path of movement of the opposing attachment plate (4, 4a). This prevents one attachment plate (4 or 4a) from being blocked when pivoting out of the rest position by the support arm (5, 5a) of the other attachment plate (4 or 4a), which is arranged below the attachment plate (4, 4a). protrudes from the contour of the attachment plate (4, 4a). It is therefore essential that the areas of the support arm that overlap the attachment plate contour do not intersect the movement path of the other attachment plate.
- each attachment plate (4 and 4a) is additionally provided with a support device (10, 11), which in FIG. 2 is only for the attachment plate (4a). is shown.
- This support device (10, 11) acts at a distance from the mounting of the attachment plate (4a) and thus also at a distance from the central longitudinal axis of the table leg (3).
- This support device (10, 11) on the one hand achieves a non-positive locking of the attachment plate (4a) on the table plate (2) in its enlarged position.
- the support device (10, 11) is used for vertical support of the attachment plate (4a), since due to the eccentric mounting of the attachment plate (4a) on the table leg (3), relatively large leverage ratios act, which already occur due to the weight of the attachment plate (4a ) to a height difference between the attachment plate (4a) and the tabletop (2) at the opposite end of the broad side of the tabletop (2), to which the attachment plate (4a) connects.
- the support device (10, 11) on the opposite end of the longitudinal edge of the attachment plate (4a), which adjoins the broad side edge of the table top (2) has a locking pin (10) which, when pivoted into the enlarged position a corresponding locking hole (11) is inserted horizontally.
- Locking pin (10) and locking hole (11) are matched to one another so that the locking pin (10) is non-positively held in the locking hole (11) in the side edge of the table top (2), so that the attachment plate (4a) is locked in the enlarged position.
- Locking pin (10) and locking hole (11) therefore serve on the one hand for vertical support of the attachment plate (4, 4a) and on the other hand for horizontal securing on the table top (2).
- the support devices for the respective attachment plates are formed by separate support and locking elements, which, however, each carry out the double function of vertical support of the attachment plates and horizontal locking of the attachment plates in each case relative to the table top.
- each attachment plate (4, 4a) is held on the respective support arm (5 and 5a) so that it can be adjusted in height in the region of its bearing points.
- a block-like insert part (12) is provided on the underside of the attachment plate (4), which can be inserted into a corresponding receptacle (13) of the support arm (5).
- the insert part (12) and thus the attachment plate (4) are fixed in the receptacle (13) by a retaining screw (14) screwed centrally into the receptacle (12) from below, which is held in place by the receptacle (13).
- This enables a sensitive height adjustment of the attachment plate (4) and thus a horizontal and parallel alignment of the attachment plate (4) to the table top (2).
- each bearing sleeve (6 or 6a) is rotatably and axially displaceably supported on the corresponding support leg (3) with the aid of slide bearings in the form of sheet metal clamps (17).
- the two metal clamps (17) represent thin, plate-like sheets that around the outer circumference of the Table leg (3) are bent around at a distance from each other.
- plastic rings are provided as slide bearings.
- the two support arms (5 and 5a) are detachably attached to the upper end of the associated bearing sleeve (6 and 6a).
- an attachment flange provided with two bores is provided on the outside of the bearing sleeve (6) and is rigidly connected to the bearing sleeve (6) by welding.
- a corresponding attachment of the support arm (5) can be positively placed on this and fastened with the aid of two screws that can be screwed into the bores. This makes it possible to easily assemble or disassemble the support arm (5) so that the table (1) can be used with or without an attachment plate (4, 4a).
- the guide means for pivoting and shifting the height of the attachment plates (4 and 4a) according to FIG. 5 are provided in the region of an upper end of the table leg (3).
- the upper area of the table leg (3) is shown.
- the guide means are therefore located directly on the underside of the table top (2). This makes it possible to design the region of the table leg (3) which adjoins this upper end region downwards, since it is not used for mounting the attachment plate (4, 4a).
- the fork-shaped support arm (5) is radially projecting rigidly attached to an annular tubular sleeve (18) representing the rotatable bearing part of the bearing, which is distributed over its inner circumference with three radially inwardly projecting cylindrical guide bolts (19).
- This guide part (21) forms the upper end of the table leg (3).
- the outer diameter of the guide part (21) and the inner diameter of the tubular sleeve (18) are coordinated so that the Pipe sleeve (18) is movable according to the positive guidance through the link guides (20), but can neither tilt nor tilt.
- the three link guides (20) distributed over the circumference of the guide part (21) correspond to one another and serve to support and to securely guide the tubular sleeve (18).
- each link guide (20) is curved in such a way that the movement path of each attachment plate (4 or 4a) described in detail above is achieved from its rest position into the enlarged position and back without touching other parts of the table (1).
- the guide part (21) is offset from the adjoining area of the table leg (3) by a circumferential step, which at the same time serves to support the tubular sleeve (18) in the rest position.
- the guide part (21) is not provided with link guides (20), but with a thread with a corresponding pitch.
- the tubular sleeve (18) accordingly has a corresponding internal thread.
- pivoting and shifting the height of the support arm (5) and thus the attachment plate (4 or 4a) correspond to the rest of the previously described embodiments.
- each table leg (3) is provided with a mounting for one attachment plate each, so that a total of four attachment plates are provided for enlarging the table (1).
- the attachment plates are in their rest position below the table top not in different parallel planes, but all at one level, so that the helical curves in the area of the lower ends of the bearing sleeves have the same pitch.
- the attachment plates each extend over half the width of the table top and are flush with one another in pairs.
- the guide means for mounting the support arm (5a) and thus the attachment plate (4a), as in the exemplary embodiment according to FIG. 5, directly adjoin the underside of the table plate (2a).
- a cylindrical threaded stub (21a) is provided in this exemplary embodiment, which is rigidly connected to the underside of the table top (2a).
- This cylindrical bearing stub (21a) is provided with an external thread (22) onto which an internal thread (23) of the tube sleeve (18a) which essentially corresponds to the tube sleeve (18) can be screwed.
- This thread is also designed so that the maximum swivel angle of the support arm (5a) and thus the attachment plate (4a) in the form of a three-quarter circle is 270 ° and the required height shift is achieved. It is advantageous in this embodiment, however, that these guide means are not part of a table leg serving to support the table top (2), but only serve to support the attachment plate (4a).
- the bearing stump (21a) is therefore free at the bottom. This makes it possible to arrange the bearing stump (21a) and thus also the guide means for the attachment plate (4a) at any position in the region of the underside of the table top (2a), regardless of any table legs, so that there is extensive design freedom. This is particularly advantageous in the case of a round table top (2a) according to FIG. 6 (shown in broken lines), which is possibly provided with a central adjusting foot.
- the bearing stump (21a) can be positioned at a suitable location depending on the design of the table top (2a).
- the support device has a locking lever (27) which is pivotably mounted on a stationary bearing block (25) about a pivot axis (26).
- the bearing block (25) is arranged in the edge region of the table top (2) on its underside.
- the bearing block (25) protrudes obliquely downwards and towards the edge of the table top (2) from the underside of the table top (2).
- the locking lever (27) is pivotally mounted on the bearing block (25) in a radial plane, wherein the radial plane - based on the horizontal surface of the table top (2) - represents an inclined plane.
- the storage of the locking lever (27) is so stable that it can absorb vertical loads on the locking lever (27).
- the locking lever (27) has an upwardly projecting, straight locking edge (32) which tangentially engages to lock and support the attachment plate (4) on a circular curve contour of a crescent-shaped locking plate (29).
- the crescent-shaped locking plate (29) is attached to an underside of the attachment plate (4) in the edge region facing the table plate (2).
- both the table top (2) and the attachment plate (4) are made of glass, so that both the bearing block (25) and the locking plate (29) are glued to the respective undersides.
- the radius of the pivoting movement of the locking lever (27) is larger than the radius of the curve contour of the crescent-shaped locking plate (29), so that the dashed line (31) for the locking edge (32) of the locking lever (27) (Fig. 7a) results .
- the attachment plate (4) is first brought into the vicinity of the edge area of the table top (2).
- the locking lever (27) is then pivoted forward from its rest position shown in dash-dotted lines in the inclined swivel plane, with its locking edge (32) resting on the underside of the attachment plate (4) in the region of the curved contour of the locking plate (29).
- the attachment plate (4) is automatically pushed upwards and pulled towards the edge of the table top (2).
- the attachment plate (4) is flush with the surface of the table top (2).
- the locking lever (27) therefore takes over both the vertical support of the edge region of the attachment plate (4) downwards and the securing of the attachment position of the attachment plate (4) on the table top (2).
- the swivel lever can be released in both directions from the locking position shown in FIG. 7a.
- the support device according to FIGS. 8 and 8a has a locking lever (27a) which can be pivoted in a vertical pivoting plane and which is mounted in the upper region of the table leg (3) by means of a bearing pin about a horizontal bearing axis (26a).
- the locking lever (27a) engages behind a rectangular locking plate (29a) arranged on the underside of the attachment plate (4).
- the vertical support of the locking lever (27a) and thus also the support of the attachment plate (4) is carried out by a support cam (33) attached to the table leg (3), on which the locking lever (27a) rests in the locking position.
- To unlock the locking lever (27a) can be pressed horizontally outwards until it can slide down past the support cam (33).
- the locking lever (27a) To enable the locking lever (27a) to pivot horizontally, the locking lever (27a) is supported on the bearing pin by means of a rubber washer (34) so that it can be pushed away to the side.
- the support cam (33) is wedge-shaped in the vertical direction, so that it has a run-on slope on which the locking lever (27a) slides along in its locking position and is pressed outwards when it is swiveled out of the rest position shown in broken lines.
Landscapes
- Tables And Desks Characterized By Structural Shape (AREA)
- Laminated Bodies (AREA)
- Special Chairs (AREA)
- Table Devices Or Equipment (AREA)
- Cabinets, Racks, Or The Like Of Rigid Construction (AREA)
Abstract
Description
Die Erfindung betrifft ein Möbelstück mit einer stationären Platte sowie mit wenigstens zwei Ansetzplatten, die um eine außerhalb der Ansetzplattenkontur befindliche Lagerachse durch Führungsmittel an einem stationären Lagerpunkt des Möbelstücks gelagert und um den Lagerpunkt zwischen einer unterhalb der stationären Platte befindlichen Ruheposition und einer mit der Plattenhöhe fluchtenden Vergrößerungsposition parallel zur Platte verschwenk- und höhenverlagerbar sind.The invention relates to a piece of furniture with a stationary plate and with at least two attachment plates, which are mounted around a bearing axis located outside the attachment plate contour by guide means at a stationary bearing point of the piece of furniture and around the bearing point between a rest position located below the stationary plate and one aligned with the plate height The enlargement position can be swiveled and shifted in height parallel to the plate.
Aus der DE 42 07 743 A1 ist ein Möbelstück dieser Art bekannt, das als durch eine Ansetzplatte vergrößerbarer Tisch ausgebildet ist, wobei die Ansetzplatte exzentrisch an einem Tischbein gelagert ist. Die Ansetzplatte ist starr mit einer auf das Tischbei aufgeschobenen, rohrförmigen Hülse verbunden, deren untere Stirnkante auf einem vom Tischbein radial abragenden Bolzen aufliegt. Die Stirnkante weist über ihren Umfang eine wendelförmige Kurve auf, deren Steigung so bemessen ist, daß die Ansetzplatte bei einer Verschwenkung aus einer Ruheposition unterhalb der Tischplatte in eine mit der Tischoberfläche fluchtende Vergrößerungsposition höhenverlagert wird.A piece of furniture of this type is known from DE 42 07 743 A1, which is designed as a table that can be enlarged by a attachment plate, the attachment plate being mounted eccentrically on a table leg. The attachment plate is rigidly connected to a tubular sleeve pushed onto the table, the lower end edge of which rests on a pin which projects radially from the table leg. The end edge has a helical curve over its circumference, the slope of which is dimensioned such that the attachment plate is displaced in height when it is pivoted from a rest position below the table top into an enlarged position aligned with the table surface.
Aufgabe der Erfindung ist es, ein Möbelstück der eingangs genannten Art zu schaffen, das verbesserte Möglichkeiten zur Form- und Größengestaltung aufweist.The object of the invention is to provide a piece of furniture of the type mentioned, which has improved options for shape and size design.
Diese Aufgabe wird dadurch gelöst, daß die wenigstens zwei Ansetzplatten in der Ruheposition unterhalb der stationären Platte in jeweils unterschiedlichen Ebenen parallel übereinander gelagert sind und Führungsmittel mit unterschiedlicher Steigung aufweisen, und daß jede Ansetzplatte mittels eines Tragelementes gehalten ist, dessen außerhalb der Ansetzplattenkontur befindliche Bereiche die Bewegungsbahn der wenigstens einen anderen Ansetzplatte nicht schneiden. Als Möbelstück ist insbesondere ein Tisch vorgesehen. Die Erfindung betrifft jedoch in gleicher Weise auch andere Möbelstücke wie Regale, Sideboards oder ähnliches. Dadurch ist es möglich, zwei oder mehr Ansetzplatten zur Vergrößerung der stationären Platte vorzusehen, die in der an der stationären Platte angesetzten Vergrößerungsposition auf einer Höhe mit dieser sind und so mit der Plattenoberfläche fluchten. Ein wesentlicher Vorteil der Erfindung ist es, daß völlig neue Dimensionen für die Vergrößerung von Platten geschaffen werden. Durch die Anordnung der Ansetzplatten in unterschiedlichen Ebenen ist es nämlich möglich, gegenüber dem Stand der Technik wesentlich vergrößerte Ansetzplatten vorzusehen, die sich in einer Draufsicht in der Ruheposition unter der stationären Platte überschneiden. Dadurch ist es auch möglich, relativ breite Tische über ihre volle Breite durch einteilige Ansetzplatten zu vergrößern. Durch die Überlagerung der Ansetzplatten ist somit bei der Erfindung das Maß der Vergrößerung der stationären Platte nicht mehr - wie beim Stand der Technik - abhängig von der Baulänge der stationären Platte, unter der die Ansetzplatten gelagert sind. Durch die Erfindung ist auch ein kurzer Tisch großflächig vergrößerbar. Dadurch, daß die insbesondere an der Unterseite oder an der Oberseite der Ansetzplatte über die Ansetzplattenkontur hinausragenden Bereiche des Tragelementes zur Halterung der Ansetzplatte die Bewegungsbahn der anderen Ansetzplatte nicht schneiden, sind die Ansetzplatten bei ihrer Schwenkbewegung aneinander vorbeiführbar, ohne daß sie durch abstehende Bereiche des Tragelementes der jeweils anderen Ansetzplatte blockiert werden. Als Tragelemente sind Tragarme, Winkel o.a. die Ansetzplatte auf ihrer Ober- und ihrer Unterseite verdickend übergreifende Träger vorgesehen. Ein Tragarm, der zur Halterung der Ansetzplatte radial unter diese ragt, ist daher maximal lediglich so bemessen, daß seine vordere Stirnseite die Bewegungsbahn der vorderen Kontur der anderen Ansetzplatte nicht schneidet. Bei symmetrischen Tischen und daraus resultierenden gleichgroßen Ansetzplatten ist somit die radiale Länge des Tragarmes geringer bemessen als der Radius der Bewegungsbahn der anderen Ansetzplatte.This object is achieved in that the at least two attachment plates are in the rest position below the stationary plate in parallel in different planes one above the other and have guide means with different pitch, and in that each attachment plate is held by means of a support element, the areas of which are outside the attachment plate contour Do not cut the path of movement of the at least one other attachment plate. A table is particularly provided as a piece of furniture. However, the invention also relates to other pieces of furniture such as shelves, sideboards or the like in the same way. This makes it possible to provide two or more attachment plates for enlarging the stationary plate, which in the enlargement position attached to the stationary plate are at the same level as the latter and are thus flush with the plate surface. A major advantage of the invention is that completely new dimensions for the enlargement of plates are created. The arrangement of the attachment plates in different planes makes it possible to provide attachment plates which are substantially enlarged compared to the prior art and which overlap in a top view in the rest position under the stationary plate. This also makes it possible to enlarge relatively wide tables over their full width using one-piece attachment plates. As a result of the superimposition of the attachment plates, the degree of enlargement of the stationary plate is no longer dependent on the overall length of the stationary plate under which the attachment plates are mounted, as in the prior art. A short table can also be enlarged over a large area by the invention. Characterized in that the areas of the support element protruding beyond the attachment plate contour, in particular on the underside or on the top side of the attachment plate, for holding the attachment plate, the movement path of the other attachment plate do not cut, the attachment plates can be moved past one another during their pivoting movement without being blocked by protruding areas of the supporting element of the respective other attachment plate. Carrying arms, brackets, angles or the attachment plate which thicken over and above the top and bottom sides are provided as support elements. A support arm, which projects radially below this for holding the attachment plate, is therefore at most dimensioned only in such a way that its front end does not intersect the path of movement of the front contour of the other attachment plate. In the case of symmetrical tables and the resultant attachment plates of the same size, the radial length of the support arm is therefore less than the radius of the movement path of the other attachment plate.
In Ausgestaltung der Erfindung sind beide Ansetzplatten an einer Seite der stationären Platte gelagert. Dadurch ist es bei der Anordnung des Möbelstückes in einen Raum ausreichend, auf einer Seite der stationären Platte etwas mehr Raum für das Herausschwenken der Ansetzplatten vorzusehen. Dies ist insbesondere auch dann vorteilhaft, wenn das Möbelstück in der Nähe einer Wand des Raumes aufgestellt ist, da zur Vergrößerung der stationären Platte kein Wegschieben des Möbelstückes von der Wand notwendig ist.In an embodiment of the invention, both attachment plates are mounted on one side of the stationary plate. As a result, when arranging the piece of furniture in a room, it is sufficient to provide a little more space on one side of the stationary plate for the attachment plates to pivot out. This is particularly advantageous when the piece of furniture is placed near a wall of the room, since it is not necessary to push the piece of furniture away from the wall to enlarge the stationary plate.
In weiterer Ausgestaltung der Erfindung sind die Ansetzplatten wesentlich dünner als die stationäre Platte. Dadurch ist es möglich, die Ansetzplatten in ihrer Ruheposition weitgehend unsichtbar unter der stationären Platte anzuordnen, da durch die geringe Dicke der Ansetzplatten auch die Höhe des für die Lagerung unterhalb der stationären Platte benötigten Raumes relativ gering ist. Somit ist es möglich, die Bauhöhe eines Tisches trotz der Lagerung der Ansetzplatten unterhalb der Tischplatte vergleichsweise gering zu halten, und dennoch eine ausreichende Beinfreiheit für an dem Tisch sitzende Personen zu bewahren.In a further embodiment of the invention, the attachment plates are considerably thinner than the stationary plate. This makes it possible to arrange the attachment plates largely invisibly under the stationary plate in their rest position, since the small thickness of the attachment plates also means that the height of the space required for storage below the stationary plate is relatively small. It is thus possible to keep the overall height of a table comparatively low despite the mounting of the attachment plates below the table top, and yet to maintain sufficient legroom for people sitting at the table.
In weiterer Ausgestaltung der Erfindung ist die Ansetzplatte auf dem Tragarm höhenverstellbar gehalten. Dadurch ist eine Justierung der Ansetzplatte relativ zur stationären Platte möglich, um Toleranzen, die zu unterschiedlichen Höhen zwischen Ansetzplatte und stationärer Platte führen könnten, auszugleichen.In a further embodiment of the invention, the attachment plate is held on the support arm so that it can be adjusted in height. This makes it possible to adjust the attachment plate relative to the stationary plate in order to compensate for tolerances that could lead to different heights between the attachment plate and the stationary plate.
Bei einer anderen Ausgestaltung der Erfindung ist vorgesehen, daß die Führungsmittel des Lagerpunktes für eine Verschwenkung der Ansetzplatte unmittelbar im Bereich der stationären Platte angeordnet sind. Durch die Anordnung der Führungsmittel für die Verschwenkung der Ansetzplatte direkt im Bereich der stationären Platte muß diese entgegen dem Stand der Technik nicht unbedingt an einem Tischbein gelagert werden, um durch eine ausreichende Führungslänge eine sichere rohrförmige Lagerung zu erreichen. Die Ansetzplatte muß daher nicht mehr zwangsläufig an einem sich zum Boden erstreckenden Bein gelagert sein, das gleichzeitig zur Stützung der stationären Platte dient. Somit kann die Ansetzplatte auch bei runden Tischen vorgesehen werden, die lediglich in der Mitte einen Stützfuß aufweisen.In another embodiment of the invention, it is provided that the guide means of the bearing point for pivoting the attachment plate are arranged directly in the area of the stationary plate. Due to the arrangement of the guide means for pivoting the attachment plate directly in the area of the stationary plate, this does not necessarily have to be mounted on a table leg, in contrast to the prior art, in order to achieve a secure tubular storage by a sufficient guide length. The attachment plate therefore no longer necessarily has to be mounted on a leg which extends to the floor and which also serves to support the stationary plate. The attachment plate can thus also be provided for round tables which have a support foot only in the middle.
In weiterer Ausgestaltung der Erfindung sind die Führungsmittel in einem zylindrischen, oberen Bereich eines die stationäre Platte stützenden Stützbeines angeordnet. Da die Führungsmittel im oberen Bereich des Stützbeines angeordnet sind, ist der übrige Bereich des Stützbeines in seiner Form frei gestaltbar, beispielsweise als Vierkantprofil o.ä.In a further embodiment of the invention, the guide means are arranged in a cylindrical, upper region of a support leg supporting the stationary plate. Since the guide means are arranged in the upper area of the support leg, the rest of the area of the support leg can be designed freely, for example as a square profile or the like.
In weiterer Ausgestaltung der Erfindung sind die Führungsmittel an einem an einer Unterseite der stationären Platte angeordneten zylindrischen Lagerstumpf vorgesehen. Dieser stopfenartige Lagerstumpf ist an beliebigen Stellen an der Unterseite der stationären Platte anbringbar und dient lediglich zur Lagerung der Ansetzplatte und nicht - wie beim Stand der Technik - zusätzlich als Stützbein der stationären Platte. Diese Ausgstaltung ist insbesondere für runde Tische vorteilhaft.In a further embodiment of the invention, the guide means are provided on a cylindrical bearing stub arranged on an underside of the stationary plate. This stopper-like bearing stump can be attached at any point on the underside of the stationary plate and is only used for mounting the attachment plate and not - as in the prior art - additionally as a supporting leg of the stationary plate. This configuration is particularly advantageous for round tables.
In weiterer Ausgestaltung der Erfindung sind als Führungsmittel wenigstens eine Kulissenführung und wenigstens ein in diese eingreifender Kulissenstein vorgesehen, die einem stationären und einem drehbaren Lagerteil der Lagerung der Ansetzplatte zugeordnet sind, wobei wenigstens ein Teil der Kulissenführung eine dem Verhältnis aus Schwenkwinkel und Höhendifferenz der Ansetzplatte zwischen der Ruhe- und der Vergrößerungsposition entsprechende Steigung aufweist. Dadurch ist es in einfacher Weise möglich, die Bewegungsbahn der Ansetzplatte bei ihrer Bewegung aus der Ruhe- in die Vergrößerungsposition zu optimieren. Durch die Verwendung einer Kulissenführung und eines Kulissensteines wird eine Zwangsführung erreicht, so daß die Höhe der Lagerhülse zur Lagerung der Ansetzplatte gegenüber dem Stand der Technik wesentlich verringert ist. Beim Stand der Technik wurde nämlich die Höhe der Rohrhülse zur Führung benötigt, um eine ausreichende Andrückung der unteren Stirnkante an den Tischbeinbolzen zu gewährleisten und ein Verkanten der Ansetzplatte zu verhindern. Besonders vorteilhaft ist es, wenn die Kippbelastung auf den Lagerpunkt in mehreren über den Umfang des Lagerteiles verteilten Kulissensteinen, vorzugsweise drei, aufgefangen wird.In a further embodiment of the invention, at least one link guide and at least one link block engaging in it are provided as guide means, which are assigned to a stationary and a rotatable bearing part of the mounting of the attachment plate, at least part of the link guide having a ratio of the pivoting angle and height difference of the attachment plate between the rest and the enlargement position has a corresponding slope. This makes it possible in a simple manner to optimize the movement path of the attachment plate as it moves from the rest position into the enlargement position. By using a link guide and a sliding block, a positive guide is achieved so that the height of the bearing sleeve for mounting the attachment plate is significantly reduced compared to the prior art. In the prior art, the height of the tubular sleeve was namely required for guiding, in order to ensure that the lower end edge was pressed sufficiently against the table leg bolts and to prevent the attachment plate from tilting. It is particularly advantageous if the tilting load on the bearing point is absorbed in several sliding blocks, preferably three, distributed over the circumference of the bearing part.
Bei einer weiteren Ausgestaltung der Erfindung sind in der Vergrößerungsposition die einander zugewandten Randbereiche der Ansetzplatte und der stationären Platte in Abstand zum Lagerpunkt mittels einer Stützeinrichtung miteinander koppelbar. Dadurch wird die an einem Eckbereich gelagerte Ansetzplatte in der Vergrößerungsposition durch die Koppelung mit der stationären Platte zusätzlich gestützt, wodurch auch bei größeren Ansetzplatten eine ausreichende Stabilität erreicht wird. Ein Durchbiegen der Ansetzplatte bei einem Abstellen von schwereren Gegenständen in Abstand zum Lagerpunkt wird dadurch vermieden. Somit können auch bei relativ breiten stationären Platten Ansetzplatten eingesetzt werden, die der Breite der stationären Platte entsprechen. Die Variationsmöglichkeiten für Form und Größe der Möbelstücke werden dadurch verbessert.In a further embodiment of the invention, the mutually facing edge regions of the attachment plate and the stationary plate can be coupled to one another at a distance from the bearing point by means of a support device in the enlarged position. As a result, the attachment plate mounted on a corner area is additionally supported in the enlarged position by the coupling with the stationary plate, as a result of which sufficient stability is achieved even with larger attachment plates. This prevents the attachment plate from sagging when heavy objects are parked at a distance from the bearing point. In this way, attachment plates which correspond to the width of the stationary plate can also be used with relatively wide stationary plates. The possible variations in shape and size of the furniture are improved.
In weiterer Ausgestaltung der Erfindung ist die Stützeinrichtung mit einem Verriegelungselement zum Arretieren der stationären Platte und der Ansetzplatte gegeneinander versehen. Dadurch wird vermieden, daß die Ansetzplatte unbeabsichtigt aus der Vergrößerungsposition zurückverschwenkt wird, und so zwischen den einander zugewandten Randbereichen von stationärer Platte und Ansetzplatte ein Spalt entsteht.In a further embodiment of the invention, the support device is provided with a locking element for locking the stationary plate and the attachment plate against one another. This prevents the attachment plate from being unintentionally pivoted back out of the enlarged position, and thus creating a gap between the edge regions of the stationary plate and attachment plate facing one another.
In weiterer Ausgestaltung der Erfindung weist die Stützeinrichtung zwei zueinander korrespondierende Verbindungselemente auf, von denen eines dem Randbereich der Ansetzplatte und das andere dem Randbereich der stationären Platte zugeordnet ist, und die durch die Schwenkbewegung der Ansetzplatte in die Vergrößerungsposition form- oder kraftschlüssig verbindbar sind. Dadurch erfolgt die Arretierung der Ansetzplatte an der stationären Platte in einfacher Weise bereits durch die Schwenkbewegung der Ansetzplatte zur stationären Platte hin, so daß zusätzliche Handgriffe vermieden werden.In a further embodiment of the invention, the support device has two mutually corresponding connecting elements, one of which is assigned to the edge region of the attachment plate and the other to the edge region of the stationary plate, and which can be connected in a positive or non-positive manner by the pivoting movement of the attachment plate into the enlarged position. As a result, the attachment plate is locked onto the stationary plate in a simple manner by the pivoting movement of the attachment plate toward the stationary plate, so that additional manipulations are avoided.
In weiterer Ausgestaltung der Erfindung weist die Stützeinrichtung einen stationär gelagerten, in einer schiefen Ebene schwenkbaren Arretierhebel auf, der bei der Schwenkbewegung zur Verriegelung und Stützung der Ansetzplatte an einer Unterseite der Ansetzplatte eine halbmondförmige Arretierplatte tangential hintergreift, wobei der Radius des Halbmondes kleiner ist als der Schwenkradius des Arretierhebels. Vorteilhaft ist hierbei, daß der Arretierhebel bei seiner Schwenkbewegung zur Stützung und Verriegelung der Ansetzplatte diese untergreift und damit bereits vertikal abstützt, und daß er bei der weiteren Schwenkbewegung die Ansetzplatte an die stationäre Platte heranzieht und die Ansetzplatte auf die mit der Oberfläche der stationären Platte fluchtende Höhe drückt.In a further embodiment of the invention, the support device has a stationary locking lever which can be pivoted in an inclined plane and which tangentially engages behind a crescent-shaped locking plate on the underside of the attachment plate during the pivoting movement for locking and supporting the attachment plate, the radius of the crescent moon being smaller than that Swing radius of the locking lever. It is advantageous here that the locking lever engages under and thus already supports vertically during its pivoting movement for supporting and locking the attachment plate, and that during the further pivoting movement it pulls the attachment plate onto the stationary plate and the attachment plate onto the surface aligned with the surface of the stationary plate Height presses.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Unteransprüchen. Nachfolgend sind Ausführungsbeispiele der Erfindung beschrieben und anhand der Zeichnungen dargestellt.
- Fig. 1
- zeigt eine Seitenansicht einer Ausführungsform eines erfindungsgemäßen Möbelstückes in Form eines Tisches, der mit zwei in der Ruheposition in unterschiedlichen Ebenen übereinander gelagerten Ansetzplatten versehen ist,
- Fig. 2
- eine Draufsicht auf den Tisch nach Fig. 1, aus der die Anordnung jeder Ansetzplatte unterhalb der Tischplatte und die statisch bestimmte Dreipunktlagerung jeder Ansetzplatte auf einem Tragarm ersichtlich sind,
- Fig. 3
- in vergrößerter, teilweise geschnittener und ausschnittsweiser Darstellung die höhenverstellbare Lagerung einer Ansetzplatte auf einem Tragarm,
- Fig. 4
- in perspektivischer Explosionsdarstellung die Anordnung eines Tragarmes für eine Ansetzplatte an einer rohrförmigen Lagerhülse, die unter Zwischenschaltung von Blechschellen auf einem rohrförmigen Tischbein drehbar lagerbar ist,
- Fig. 5
- eine weitere perspektivische, explosionsartige Darstellung einer weiteren Ausführung der Lagerung eines Tragarmes an einem Tischbein, wobei der gabelförmige Tragarm starr mit einer hohlzylindrischen Lagerhülse verbunden ist, die mit radial nach innen gerichteten Nocken zur Führung in entsprechenden Kulissenführungen eines oberen Bereiches eines Tischbeines versehen ist,
- Fig. 6
- eine weitere Ausführung der Erfindung, bei der zur Höhenverlagerung des Tragarmes ein an einer Unterseite einer Tischplatte angeordneter Gewindestopfen vorgesehen ist, auf den die mit einem Innengewinde versehene Lagerhülse aufschraubbar ist,
- Fig. 7 und 7a
-
eine weitere Ausführungsform zur Verriegelung und Stützung der Ansetzplatte an der Tischplatte, bei der vorteilhaft beim Verriegeln der Ansetzplatte ein Heranziehen der Ansetzplatte an die stationäre Platte und ein Hochdrücken der Ansetzplatte auf die mit der Oberfläche der stationären Platte fluchtende Höhe erreicht wird, und - Fig. 8 und 8a
-
eine weitere Ausführungsform zur Verriegelung und Stützung der Ansetzplatte an der Tischplatte, die einen an einem Tischbein schwenkbar gelagerten Arretierhebel aufweist.
- Fig. 1
- 1 shows a side view of an embodiment of a piece of furniture according to the invention in the form of a table which is provided with two attachment plates which are superimposed in different levels in the rest position,
- Fig. 2
- 1, from which the arrangement of each attachment plate below the table plate and the statically determined three-point mounting of each attachment plate on a support arm can be seen,
- Fig. 3
- in an enlarged, partially sectioned and partial representation, the height-adjustable mounting of an attachment plate on a support arm,
- Fig. 4
- a perspective exploded view of the arrangement of a support arm for a mounting plate on a tubular bearing sleeve which can be rotatably supported on a tubular table leg with the interposition of sheet metal clamps,
- Fig. 5
- another perspective, exploded view of a further embodiment of the mounting of a support arm on a table leg, the fork-shaped support arm being rigidly connected to a hollow cylindrical bearing sleeve which is provided with radially inwardly directed cams for guidance in corresponding link guides of an upper region of a table leg,
- Fig. 6
- a further embodiment of the invention, in which a threaded plug is provided on an underside of a table top for shifting the height of the support arm, onto which the bearing sleeve provided with an internal thread can be screwed,
- 7 and 7a
-
a further embodiment for locking and supporting the attachment plate on the table top, in which advantageously when the attachment plate is locked, an attachment of the attachment plate to the stationary plate and a pushing up of the attachment plate to the height aligned with the surface of the stationary plate is achieved, and - 8 and 8a
-
a further embodiment for locking and supporting the attachment plate on the table top, which has a locking lever pivotally mounted on a table leg.
Ein Tisch (1) nach den Fig. 1 und 2 weist eine rechteckige Tischplatte (2) auf, die an ihren vier Ecken durch vier Tischbeine (3) gestützt wird. Die vier Tischbeine (3) weisen Zylinderform auf. Die Tischbeine (3) ragen an den gegenüberliegenden Längsseiten der Tischplatte (2) - in der Draufsicht nach Fig. 2 gesehen - teilweise unter der Tischplatte (2) hervor. An die Tischplatte (2) sind an ihren gegenüberliegenden Breitseiten zwei Ansetzplatten (4, 4a) ansetzbar. Beide Ansetzplatten (4, 4a) weisen die gleiche Größe auf und sind rechteckig gestaltet. Die Länge der gegenüberliegenden Längsseiten der beiden Ansetzplatten (4, 4a) stimmt mit der Breite der Tischplatte (2) überein. Die beiden Ansetzplatten (4 und 4a) sind etwa halb so dick wie die Tischplatte (2). In der Vergrößerungsposition des Tisches (1) sind beide Ansetzplatten (4 und 4a) auf den gegenüberliegenden Breitseiten der Tischplatte (2) an diese angesetzt. In dieser Vergrößerungsposition fluchten die Ansetzplatten (4 und 4a) mit der Tischplatte (2), d.h. die als Stellfläche dienende Oberfläche der Ansetzplatten (4 und 4a) befindet sich auf einer Höhe mit der Tischoberfläche der Tischplatte (2). In der Vergrößerungsposition, in der die der Tischplatte (2) zugewandten seitlichen Längskanten der Ansetzplatten (4 und 4a) an den gegenüberliegenden seitlichen Breitkanten der Tischplatte (2) anliegen, ergibt sich eine einheitliche Tischfläche, die nahezu doppelt so groß ist wie die Tischfläche der Tischplatte (2). Die Vergrößerungsposition ist in Fig. 1 und 2 mit strichpunktierten Linien dargestellt.A table (1) according to FIGS. 1 and 2 has a rectangular table top (2) which is supported at its four corners by four table legs (3). The four table legs (3) have a cylindrical shape. The table legs (3) protrude on the opposite long sides of the table top (2) - seen in the plan view of FIG. 2 - partially under the table top (2). Two attachment plates (4, 4a) can be attached to the table top (2) on their opposite broad sides. Both attachment plates (4, 4a) have the same size and are rectangular. The length of the opposite long sides of the two attachment plates (4, 4a) corresponds to the width of the table top (2). The two attachment plates (4 and 4a) are about half as thick as the table top (2). In the enlarged position of the table (1), both attachment plates (4 and 4a) are on the opposite Broad sides of the table top (2) attached to this. In this enlargement position, the attachment plates (4 and 4a) are aligned with the table top (2), ie the surface of the attachment plates (4 and 4a) serving as a standing surface is at the same level as the table surface of the table top (2). In the enlarged position, in which the side longitudinal edges of the attachment plates (4 and 4a) facing the table top (2) lie against the opposite wide side edges of the table top (2), the result is a uniform table surface that is almost twice as large as the table surface of the Table top (2). The enlargement position is shown in FIGS. 1 and 2 with dash-dotted lines.
Jede Ansetzplatte (4, 4a) ist auf einem V-förmig gegabelten Tragarm (5, bzw. 5a) gehalten. Jede Ansetzplatte befindet sich in ihrer Ruheposition, in der keine Tischvergrößerung benötigt wird, unterhalb der Tischplatte (2) (Fig. 1 und gestrichelte Darstellung der Ansetzplatte 4 in Fig. 2). Die Ansetzplatten (4 und 4a) sind an zwei entlang einer Längseite der Tischplatte (2) zueinander benachbarten Tischbeinen (3) horizontal verschwenkbar gelagert. Die Lagerung jeder Ansetzplatte (4 und 4a) an dem jeweiligen Tischbein (3) erfolgt außerhalb der Ansetzplattenkontur im Bereich einer Ecke jeder Ansetzplatte (4, 4a). Jede Ansetzplatte (4, 4a) ist auf dem zugehörigen Tragarm (5, 5a) derart gehalten, daß in der Ruheposition jeder Ansetzplatte (4, 4a) die Längsseiten der Ansetzplatte (4, 4a) parallel zu den Längsseiten der Tischplatte (2) ausgerichtet sind. Da die Längsseiten jeder Ansetzplatte (4, 4a), die den Längen der Breitseite der Tischplatte (2) entsprechen, länger sind als die halbe Länge der Längsseite der Tischplatte (2), überlagern sich die beiden Ansetzplatten (4 und 4a) in ihrer Ruhepositon. Als Lagerstelle für jede Ansetzplatte (4, 4a) dient das korresdondierende Tischbein (3). Jede Ansetzplatte (4, 4a) ist um eine Mittellängsachse des jeweiligen Tischbeines (3) horizontal verschwenkbar.Each attachment plate (4, 4a) is held on a V-shaped forked arm (5 or 5a). Each attachment plate is in its rest position, in which no table enlargement is required, below the table plate (2) (FIG. 1 and dashed representation of the
Der Tragarm (5) ist starr mit einer das Tischbein (3) koaxial umschließenden, rohrförmigen Lagerhülse (6) verbunden, wobei der Tragarm (5) radial vom oberen Endbereich der Lagerhülse (6) abragt. Der Tragarm (5a) ist starr an einer der Lagerhülse (6) im wesentlichen entsprechenden, rohrförmigen Lagerhülse (6a) befestigt, die koaxial auf dem anderen zylindrischen Tischbein (3) gelagert ist. Beide Lagerhülsen (6 und 6a) sind auf dem jeweiligen Tischbein (3) axial beweglich gehalten. Beide Lagerhülsen (6 und 6a) erstrecken sich in axialer Richtung über einen großen Teil des jeweiligen Tischbeines (3). Ein Verkippen oder Verkanten der Ansetzplatten (4, 4a) wird durch die große axiale Führungslänge der beiden Lagerhülsen (6 und 6a) vermieden. Eine Stirnkante (7) des unteren Endes der Lagerhülse (6) liegt an einem vom Tischbein (3) radial abragenden Bolzen (8) an, der starr mit dem Tischbein (3) verbunden ist. Die umlaufende Stirnkante (7) der Lagerhülse (6) liegt durch das Eigengewicht von Ansetzplatte (4), Tragarm (5) und Lagerhülse (6) auf dem Bolzen (8) auf und wird durch diesen gestützt. Die Stirnkante (7) ist als Kurve ausgebildet, die derart ansteigt, daS die Ansetzplatte (4) bei einer Schwenkbewegung im Uhrzeigersinn (Fig. 2) aus der Ruheposition unterhalb der Tischplatte (2) in die Vergrößerungsposition auf Höhe der Tischplatte (2) höhenverlagert wird. Die Verschwenkung und Höhenverlagerung jeder Ansetzplatte (4, 4a) entsprechen den in der DE 42 07 743 A1 beschriebenen Prinzip, so daß diesbezüglich auf diesen Stand der Technik verwiesen wird. Die Kurve weist keine lineare Steigung auf, damit gewährleistet ist, daS die Ansetzplatte (4) bei der Schwenkbewegung weder mit der gegenüberliegenden Ansetzplatte (4a) noch mit der Unterseite der Tischplatte (2) in Berührung kommt. Beim Ausführungsbeispiel ist diese Funktion durch eine zunächst flach und anschließend steiler verlaufende Steigung gelöst, wobei die beiden unterschiedlichen Steigungsabschnitte stufenlos ineinander übergehen. Bei einem nicht dargestellten Ausführungsbeispiel wird die Ansetzplatte (4) zunächst über einen bestimmten Schwenkwinkel aus der Ruheposition heraus auf gleicher Höhe verschwenkt, bevor ein linear relativ steil ansteigender Kurvenabschnitt die Überbrückung der Höhe bis zur Tischplatte (2) bewirkt. Bei beiden Ausführungsformen befinden sich die Führungsmittel zur Verschwenkung und Höhenverlagerung der Ansetzplatte (4), nämlich der Führungsbolzen (8) und die Kurve der Stirnkante (7), am unteren Ende des Tischbeines (3).The support arm (5) is rigidly connected to a tubular bearing sleeve (6) which coaxially surrounds the table leg (3), the support arm (5) projecting radially from the upper end region of the bearing sleeve (6). The support arm (5a) is rigidly attached to a tubular bearing sleeve (6a) which essentially corresponds to the bearing sleeve (6) and is mounted coaxially on the other cylindrical table leg (3). Both bearing sleeves (6 and 6a) are held axially movable on the respective table leg (3). Both bearing sleeves (6 and 6a) extend in the axial direction over a large part of the respective table leg (3). The large axial guide length of the two bearing sleeves (6 and 6a) prevents the attachment plates (4, 4a) from tilting or tilting. An end edge (7) of the lower end of the bearing sleeve (6) lies against a bolt (8) which projects radially from the table leg (3) and is rigidly connected to the table leg (3). The circumferential end edge (7) of the bearing sleeve (6) lies on the bolt (8) due to the weight of the attachment plate (4), support arm (5) and bearing sleeve (6) and is supported by the latter. The front edge (7) is designed as a curve that rises in such a way that the attachment plate (4) is shifted in height from the rest position below the table top (2) to the enlargement position at the level of the table top (2) when swiveled clockwise becomes. The pivoting and height displacement of each attachment plate (4, 4a) correspond to the principle described in DE 42 07 743 A1, so that reference is made to this prior art in this regard. The curve has no linear slope, so that it is ensured that the attachment plate (4) does not come into contact with the opposite attachment plate (4a) nor with the underside of the table plate (2) during the pivoting movement. In the exemplary embodiment, this function is solved by an initially flat and then steeper gradient, the two different gradient sections merging seamlessly into one another. In an embodiment not shown, the attachment plate (4) is first pivoted out of the rest position at the same height via a certain pivoting angle, before a linear relative steeply rising curve section bridges the height to the table top (2). In both embodiments, the guide means for pivoting and shifting the height of the attachment plate (4), namely the guide bolt (8) and the curve of the front edge (7), are located at the lower end of the table leg (3).
Die Verschwenkung und Höhenverlagerung der Ansetzplatte (4a) entspricht im wesentlichen der Ansetzplatte (4), wobei als Führungsmittel im Bereich des unteren Endes des Tischbeines (3) ein Führungsbolzen (8a) und eine mit einer Kurve versehene Stirnkante (7a) vorgesehen sind. Da die Ansetzplatte (4a) jedoch zur gleichen Seite (in Fig. 2 in Richtung des Pfeiles 24 nach vorne) unter der Tischplatte (2) hervorgeschwenkt wird wie die Ansetzplatte (4), erfolgt die Verschwenkung der Ansetzplatte (4a) im Gegenuhrzeigersinn. Vorteilhaft bei dieser Ausgestaltung ist es, daß der Tisch (1) mit der gegenüberliegenden Längsseite der Tischplatte (2) direkt an einem Absatz oder einer Wand eines Raumes positioniert werden kann und dennoch eine Vergrößerung des Tisches (1) möglich ist, da beide Ansetzplatten (4, 4a) auf der gegenüberliegenden Längsseite herausgeschwenkt werden. Da die beiden Ansetzplatten (4 und 4a) in unterschiedlichen parallelen Ebenen unterhalb der Tischplatte (2) angeordnet sind, weisen die Kurven (7 und 7a) unterschiedliche Steigungen auf, um beide Ansetzplatten (4 und 4a) in der Vergrößerungsposition auf dasselbe Niveau höhenzuverlagern. Die Kurve (7a) ist daher relativ zur Kurve (7) flacher ausgebildet. Außerdem sind die Ansetzplatten (4 und 4a) relativ zur Tischplatte (2) wesentlich dünner, wodurch sie unterhalb der Tischplatte (2) nur eine relativ geringe Höhe beanspruchen. Dies gewährleistet eine ausreichende Beinfreiheit auch in der Ruheposition der beiden Ansetzplatten (4 und 4a).The pivoting and shifting of the height of the attachment plate (4a) essentially corresponds to that of the attachment plate (4), a guide bolt (8a) and a front edge (7a) provided with a curve being provided as guide means in the region of the lower end of the table leg (3). However, since the attachment plate (4a) is pivoted out to the same side (in the direction of
Die Länge der beiden radial abragenden Tragarme (5 und 5a) ist relativ zur jeweils gegenüberliegenden Ansetzplatte (4 bzw. 4a) so bemessen, daß der jeweilige Tragarm (5, 5a) nicht in der Bewegungsbahn der gegenüberliegenden Ansetzplatte (4, 4a) liegt. Beim Ausführungsbeispiel ist somit die Länge des Tragarmes (5, 5a) geringer bemessen als der Radius der Bewegungsbahn der gegenüberliegenden Ansetzplatte (4, 4a). Dadurch wird verhindert, daß die eine Ansetzplatte (4 oder 4a) bei der Herausschwenkung aus der Ruheposition durch den Tragarm (5, 5a) der anderen Ansetzplatte (4 oder 4a) blockiert wird, der durch seine Anordnung unterhalb der Ansetzplatte (4, 4a) von der Kontur der Ansetzplatte (4, 4a) abragt. Maßgeblich ist also, daß die die Ansetzplattenkontur übergreifenden Bereiche des Tragarmes die Bewegungsbahn der anderen Ansetzplatte nicht schneiden.The length of the two radially projecting support arms (5 and 5a) is dimensioned relative to the respectively opposite attachment plate (4 or 4a) so that the respective support arm (5, 5a) is not in the path of movement the opposite attachment plate (4, 4a). In the exemplary embodiment, the length of the support arm (5, 5a) is thus dimensioned less than the radius of the path of movement of the opposing attachment plate (4, 4a). This prevents one attachment plate (4 or 4a) from being blocked when pivoting out of the rest position by the support arm (5, 5a) of the other attachment plate (4 or 4a), which is arranged below the attachment plate (4, 4a). protrudes from the contour of the attachment plate (4, 4a). It is therefore essential that the areas of the support arm that overlap the attachment plate contour do not intersect the movement path of the other attachment plate.
In der in den Fig. 1 und 2 strichpunktiert dargestellten Vergrößerungsposition jeder Ansetzplatte (4 und 4a) ist jede Ansetzplatte (4 und 4a) zusätzlich mit einer Stützeinrichtung (10, 11) versehen, die in Fig. 2 lediglich für die Ansetzplatte (4a) dargestellt ist. Diese Stützeinrichtung (10, 11) wirkt in Abstand zur Lagerung der Ansetzplatte (4a) und damit auch in Abstand zur Mittellängsachse des Tischbeines (3). Durch diese Stützeinrichtung (10, 11) wird zum einen eine kraftschlüssige Arretierung der Ansetzplatte (4a) an der Tischplatte (2) in ihrer Vergrößerungsposition erzielt. Zum anderen dient die Stützeinrichtung (10, 11) zur vertikalen Abstützung der Ansetzplatte (4a), da aufgrund der exzentrischen Lagerung der Ansetzplatte (4a) an dem Tischbein (3) relativ große Hebelverhältnisse,wirken, die bereits aufgrund des Eigengewichtes der Ansetzplatte (4a) zu einer Höhendifferenz zwischen Ansetzplatte (4a) und Tischplatte (2) am gegenüberliegenden Ende der Breitseite der Tischplatte (2), an die die Ansetzplatte (4a) anschließt, führen können. Um dies zu vermeiden, weist die Stützeinrichtung (10, 11) am gegenüberliegenden Ende der Längskante der Ansetzplatte (4a), die an die Breitseitenkante der Tischplatte (2) anschließt, einen Raststift (10) auf, der bei der Verschwenkung in die Vergrößerungsposition in eine korrespondierende Rastbohrung (11) horizontal einfährt. Raststift (10) und Rastbohrung (11) sind so aufeinander abgestimmt, daß der Raststift (10) kraftschlüssig in der Rastbohrung (11) in der seitlichen Kante der Tischplatte (2) gehalten wird, so daß die Ansetzplatte (4a) in der Vergrößerungsposition arretiert ist. Raststift (10) und Rastbohrung (11) dienen daher einerseits zur vertikalen Abstützung der Ansetzplatte (4, 4a) und andererseits zur horizontalen Sicherung an der Tischplatte (2). Bei anderen Ausführungsformen der Erfindung sind die Stützeinrichtungen für die jeweiligen Ansetzplatten durch separate Stütz- und Arretierungselemente ausgebildet, die jedoch jeweils die Doppelfunktion von vertikaler Abstützung der Ansetzplatten und horizontaler Arretierung der Ansetzplatten jeweils relativ zur Tischplatte verwirklichen.In the enlarged position of each attachment plate (4 and 4a) shown in dash-dot lines in FIGS. 1 and 2, each attachment plate (4 and 4a) is additionally provided with a support device (10, 11), which in FIG. 2 is only for the attachment plate (4a). is shown. This support device (10, 11) acts at a distance from the mounting of the attachment plate (4a) and thus also at a distance from the central longitudinal axis of the table leg (3). This support device (10, 11) on the one hand achieves a non-positive locking of the attachment plate (4a) on the table plate (2) in its enlarged position. On the other hand, the support device (10, 11) is used for vertical support of the attachment plate (4a), since due to the eccentric mounting of the attachment plate (4a) on the table leg (3), relatively large leverage ratios act, which already occur due to the weight of the attachment plate (4a ) to a height difference between the attachment plate (4a) and the tabletop (2) at the opposite end of the broad side of the tabletop (2), to which the attachment plate (4a) connects. To avoid this, the support device (10, 11) on the opposite end of the longitudinal edge of the attachment plate (4a), which adjoins the broad side edge of the table top (2), has a locking pin (10) which, when pivoted into the enlarged position a corresponding locking hole (11) is inserted horizontally. Locking pin (10) and locking hole (11) are matched to one another so that the locking pin (10) is non-positively held in the locking hole (11) in the side edge of the table top (2), so that the attachment plate (4a) is locked in the enlarged position. Locking pin (10) and locking hole (11) therefore serve on the one hand for vertical support of the attachment plate (4, 4a) and on the other hand for horizontal securing on the table top (2). In other embodiments of the invention, the support devices for the respective attachment plates are formed by separate support and locking elements, which, however, each carry out the double function of vertical support of the attachment plates and horizontal locking of the attachment plates in each case relative to the table top.
Jede Ansetzplatte (4, 4a) ist entsprechend Fig. 3 im Bereich ihrer Lagerpunkte höhenverstellbar auf dem jeweiligen Tragarm (5 und 5a) gehalten. Wie anhand der Ansetzplatte (4) nach Fig. 3 dargestellt ist, ist dazu an der Unterseite der Ansetzplatte (4) ein blockartiges Einsetzteil (12) vorgesehen, das in eine korrespondierende Aufnahme (13) des Tragarmes (5) einsetzbar ist. Aus dem Boden der Aufnahme (13) ragen beim Ausführungsbeispiel vier von der Unterseite der Aufnahme (13) her einschraubbare Gewindebolzen (15) heraus, die die Aufnahme (12) stützen. Durch eine zentrisch in die Aufnahme (12) von unten her eingeschraubte Halteschraube (14), die durch die Aufnahme (13) gegengehalten ist, wird das Einsetzteil (12) und damit die Ansetzplatte (4) in der Aufnahme (13) fixiert. Dadurch ist eine feinfühlige Höhenverstellung der Ansetzplatte (4) und damit eine waagrechte und parallele Ausrichtung der Ansetzplatte (4) zur Tischplatte (2) möglich.3, each attachment plate (4, 4a) is held on the respective support arm (5 and 5a) so that it can be adjusted in height in the region of its bearing points. 3, a block-like insert part (12) is provided on the underside of the attachment plate (4), which can be inserted into a corresponding receptacle (13) of the support arm (5). In the exemplary embodiment, four threaded bolts (15), which can be screwed in from the underside of the receptacle (13) and which support the receptacle (12), protrude from the bottom of the receptacle (13). The insert part (12) and thus the attachment plate (4) are fixed in the receptacle (13) by a retaining screw (14) screwed centrally into the receptacle (12) from below, which is held in place by the receptacle (13). This enables a sensitive height adjustment of the attachment plate (4) and thus a horizontal and parallel alignment of the attachment plate (4) to the table top (2).
Jede Lagerhülse (6 bzw. 6a) ist entsprechend Fig. 4 auf dem korrespondierenden Stützbein (3) mit Hilfe von Gleitlagerungen in Form von Blechschellen (17) drehbeweglich und axial verschiebbar gelagert. Die beiden Blechschellen (17) stellen dünne, plattenartige Bleche dar, die um den Außenumfang des Tischbeines (3) in Abstand zueinander herumgebogen sind. Bei einer anderen Ausführungsform der Erfindung sind als Gleitlagerungen Kunststoffringe vorgesehen. Die beiden Tragarme (5 und 5a) sind entsprechend Fig. 4 lösbar am oberen Ende der zugehörigen Lagerhülse (6 bzw. 6a) befestigt. Dazu ist an der Außenseite der Lagerhülse (6) ein mit zwei Bohrungen versehene Ansetzflansch vorgesehen, der durch Verschweißen starr mit der Lagerhülse (6) verbunden ist. Auf diese ist ein korrespondierender Ansatz des Tragarmes (5) formschlüssig aufsetzbar und mit Hilfe von zwei in die Bohrungen einschraubbaren Schrauben befestigbar. Dadurch ist es möglich, in einfacher Weise den Tragarm (5) zu montieren oder zu demontieren, so daß der Tisch (1) mit oder ohne Ansetzplatte (4, 4a) einsetzbar ist.According to FIG. 4, each bearing sleeve (6 or 6a) is rotatably and axially displaceably supported on the corresponding support leg (3) with the aid of slide bearings in the form of sheet metal clamps (17). The two metal clamps (17) represent thin, plate-like sheets that around the outer circumference of the Table leg (3) are bent around at a distance from each other. In another embodiment of the invention, plastic rings are provided as slide bearings. 4, the two support arms (5 and 5a) are detachably attached to the upper end of the associated bearing sleeve (6 and 6a). For this purpose, an attachment flange provided with two bores is provided on the outside of the bearing sleeve (6) and is rigidly connected to the bearing sleeve (6) by welding. A corresponding attachment of the support arm (5) can be positively placed on this and fastened with the aid of two screws that can be screwed into the bores. This makes it possible to easily assemble or disassemble the support arm (5) so that the table (1) can be used with or without an attachment plate (4, 4a).
Bei einer anderen Ausführungsform der Erfindung sind die Führungsmittel für die Verschwenkung und Höhenverlagerung der Ansetzplatten (4 und 4a) nach Fig. 5 im Bereich eines oberen Endes des Tischbeines (3) vorgesehen. In Fig. 5 ist der obere Bereich des Tischbeines (3) dargestellt. Die Führungsmittel befinden sich daher unmittelbar an der Unterseite der Tischplatte (2). Dadurch ist es möglich, den an diesen oberen Endbereich nach unten anschließenden Bereich des Tischbeines (3) beliebig zu gestalten, da er nicht zur Lagerung der Ansetzplatte (4, 4a) herangezogen wird. Beim Ausführungsbeispiel nach Fig. 5 ist der gabelförmige Tragarm (5) radial abragend starr an eine das drehbare Lagerteil der Lagerung darstellende ringförmige Rohrhülse (18) angesetzt, die über ihren Innenumfang verteilt mit drei radial nach innen abragenden zylindrischen Führungsbolzen (19) versehen ist. Diese Führungsbolzen (19) greifen in drei Kulissenführungen (20) ein, die in einem hohlzylindrischen, abgestuften Führungsteil (21) des Tischbeines (3) ausgebildet sind, wobei der Führungsteil (21) als stationärer Lagerteil der Lagerung für die Ansetzplatte (4, 4a) dient. Dieser Führungsteil (21) bildet das obere Ende des Tischbeines (3). Der Außendurchmesser des Führungsteiles (21) und der Innendurchmesser der Rohrhülse (18) sind so aufeinander abgestimmt, daß die Rohrhülse (18) zwar gemäß der Zwangsführung durch die Kulissenführungen (20) beweglich ist, aber weder verkanten noch verkippen kann. Die drei über den Umfang des Führungsteiles (21) verteilten Kulissenführungen (20) entsprechen einander und dienen zur Stützung und zur sicheren Zwangsführung der Rohrhülse (18). Dadurch wird ein Verkippen aufgrund von Hebelkräften, die durch die exzentrische Anordnung von Tragarm (5) und Ansetzplatte (4) hervorgerufen sind, sowie eine Verkantung der Rohrhülse (18) vermieden. Die Form und Steigung jeder Kulissenführung (20) ist derart gekrümmt, daß die zuvor ausführlich beschriebene Bewegungsbahn jeder Ansetzplatte (4 bzw. 4a) aus ihrer Ruheposition in die Vergrößerungsposition und zurück ohne Berührung mit anderen Teilen des Tisches (1) erreicht wird. Der Führungsteil (21) ist von dem anschließenden Bereich des Tischbeines (3) durch eine umlaufende Stufe abgesetzt, die gleichzeitig zur Stützung der Rohrhülse (18) in der Ruheposition dient. Bei einem nicht dargestellten Ausführungsbeispiel der Erfindung ist der Führungsteil (21) nicht mit Kulissenführungen (20), sondern mit einem Gewinde mit entsprechender Steigung versehen. Die Rohrhülse (18) weist dementsprechend ein korrespondierendes Innengewinde auf. Verschwenkung und Höhenverlagerung des Tragarmes (5) und damit der Ansetzplatte (4 bzw. 4a) entsprechen im übrigen jedoch den zuvor beschriebenen Ausführungsformen.In another embodiment of the invention, the guide means for pivoting and shifting the height of the attachment plates (4 and 4a) according to FIG. 5 are provided in the region of an upper end of the table leg (3). In Fig. 5 the upper area of the table leg (3) is shown. The guide means are therefore located directly on the underside of the table top (2). This makes it possible to design the region of the table leg (3) which adjoins this upper end region downwards, since it is not used for mounting the attachment plate (4, 4a). 5, the fork-shaped support arm (5) is radially projecting rigidly attached to an annular tubular sleeve (18) representing the rotatable bearing part of the bearing, which is distributed over its inner circumference with three radially inwardly projecting cylindrical guide bolts (19). These guide bolts (19) engage in three link guides (20) which are formed in a hollow cylindrical, stepped guide part (21) of the table leg (3), the guide part (21) being a stationary bearing part of the bearing for the attachment plate (4, 4a ) serves. This guide part (21) forms the upper end of the table leg (3). The outer diameter of the guide part (21) and the inner diameter of the tubular sleeve (18) are coordinated so that the Pipe sleeve (18) is movable according to the positive guidance through the link guides (20), but can neither tilt nor tilt. The three link guides (20) distributed over the circumference of the guide part (21) correspond to one another and serve to support and to securely guide the tubular sleeve (18). This prevents tilting due to lever forces caused by the eccentric arrangement of the support arm (5) and attachment plate (4), as well as tilting of the tubular sleeve (18). The shape and slope of each link guide (20) is curved in such a way that the movement path of each attachment plate (4 or 4a) described in detail above is achieved from its rest position into the enlarged position and back without touching other parts of the table (1). The guide part (21) is offset from the adjoining area of the table leg (3) by a circumferential step, which at the same time serves to support the tubular sleeve (18) in the rest position. In an embodiment of the invention, not shown, the guide part (21) is not provided with link guides (20), but with a thread with a corresponding pitch. The tubular sleeve (18) accordingly has a corresponding internal thread. However, pivoting and shifting the height of the support arm (5) and thus the attachment plate (4 or 4a) correspond to the rest of the previously described embodiments.
Bei einem nicht dargestellten Ausführungsbeispiel der Erfindung ist jedes Tischbein (3) mit einer Lagerung für je eine Ansetzplatte versehen, so daß insgesamt vier Ansetzplatten zur Vergrößerung des Tisches (1) vorgesehen sind. Bei dieser Ausführung befinden sich die Ansetzplatten in ihrer Ruheposition unterhalb der Tischplatte nicht in unterschiedlichen parallelen Ebenen, sondern alle auf einer Höhe, so daß auch die wendelförmigen Kurven im Bereich der unteren Enden der Lagerhülsen die gleiche Steigung aufweisen. Die Ansetzplatten erstrecken sich jeweils über die Hälfte der Breite der Tischplatte und liegen paarweise bündig aneinander an.In an embodiment of the invention, not shown, each table leg (3) is provided with a mounting for one attachment plate each, so that a total of four attachment plates are provided for enlarging the table (1). In this embodiment, the attachment plates are in their rest position below the table top not in different parallel planes, but all at one level, so that the helical curves in the area of the lower ends of the bearing sleeves have the same pitch. The attachment plates each extend over half the width of the table top and are flush with one another in pairs.
Beim Ausführungsbeispiel nach Fig. 6 schließen die Führungsmittel zur Lagerung des Tragarmes (5a) und damit der Ansetzplatte (4a) wie auch beim Ausführungsbeispiel nach Fig. 5 unmittelbar an die Unterseite der Tischplatte (2a) an. Dazu ist bei diesem Ausführungsbeispiel ein zylindrischer Gewindestumpf (21a) vorgesehen, der starr mit der Unterseite der Tischplatte (2a) verbunden ist. Dieser zylindrische Lagerstumpf (21a) ist mit einem Außengewinde (22) versehen, auf das ein Innengewinde (23) der im wesentlichen der Rohrhülse (18) entsprechenden Rohrhülse (18a) aufschraubbar ist. Auch dieses Gewinde ist so ausgeführt, daß der maximale Schwenkwinkel des Tragarmes (5a) und damit der Ansetzplatte (4a) in Form eines Dreiviertelkreises 270° beträgt und die erforderliche Höhenverlagerung erzielt wird. Vorteilhaft bei dieser Ausführung ist jedoch, daß diese Führungsmittel nicht Teil eines zur Stützung der Tischplatte (2) dienenden Tischbeines sind, sondern lediglich zur Lagerung der Ansetzplatte (4a) dienen. Der Lagerstumpf (21a) ist daher nach unten frei. Dadurch ist es möglich, den Lagerstumpf (21a) und damit auch die Führungsmittel für die Ansetzplatte (4a) unabhängig von etwaigen Tischbeinen an beliebigen Positionen im Bereich der Unterseite der Tischplatte (2a) anzuordnen, so daß insoweit weitgehende Gestaltungsfreiheit besteht. Dies ist besonders vorteilhaft bei einer runden Tischplatte (2a) gemäß Fig. 6 (strichpunktiert dargestellt), die womöglich mit einem zentralen Stellfuß versehen ist. Der Lagerstumpf (21a) kann je nach Gestaltung der Tischplatte (2a) an geeigneter Stelle positioniert werden.In the exemplary embodiment according to FIG. 6, the guide means for mounting the support arm (5a) and thus the attachment plate (4a), as in the exemplary embodiment according to FIG. 5, directly adjoin the underside of the table plate (2a). For this purpose, a cylindrical threaded stub (21a) is provided in this exemplary embodiment, which is rigidly connected to the underside of the table top (2a). This cylindrical bearing stub (21a) is provided with an external thread (22) onto which an internal thread (23) of the tube sleeve (18a) which essentially corresponds to the tube sleeve (18) can be screwed. This thread is also designed so that the maximum swivel angle of the support arm (5a) and thus the attachment plate (4a) in the form of a three-quarter circle is 270 ° and the required height shift is achieved. It is advantageous in this embodiment, however, that these guide means are not part of a table leg serving to support the table top (2), but only serve to support the attachment plate (4a). The bearing stump (21a) is therefore free at the bottom. This makes it possible to arrange the bearing stump (21a) and thus also the guide means for the attachment plate (4a) at any position in the region of the underside of the table top (2a), regardless of any table legs, so that there is extensive design freedom. This is particularly advantageous in the case of a round table top (2a) according to FIG. 6 (shown in broken lines), which is possibly provided with a central adjusting foot. The bearing stump (21a) can be positioned at a suitable location depending on the design of the table top (2a).
Die Stützeinrichtung nach den Fig. 7 und 7a weist einen Arretierhebel (27) auf, der um eine Schwenkachse (26) an einem stationären Lagerblock (25) schwenkbar gelagert ist. Der Lagerblock (25) ist im Randbereich der Tischplatte (2) an ihrer Unterseite angeordnet. Der Lagerblock (25) ragt schräg nach unten und zur Kante der Tischplatte (2) nach vorne von der Unterseite der Tischplatte (2) ab. Der Arretierhebel (27) ist in einer Radialebene an dem Lagerblock (25) schwenkbar gelagert, wobei die Radialebene - auf die waagrechte Oberfläche der Tischplatte (2) bezogen - eine schiefe Ebene darstellt. Die Lagerung des Arretierhebels (27) ist so stabil, daß sie vertikale Belastungen auf den Arretierhebel (27) aufnehmen kann. Der Arretierhebel (27) weist eine nach oben ragende, geradlinige Rastkante (32) auf, die zur Verriegelung und Stützung der Ansetzplatte (4) an einer kreisförmigen Kurvenkontur einer halbmondförmigen Arretierplatte (29) tangential angreift. Die halbmondförmige Arretierplatte (29) ist an einer Unterseite der Ansetzplatte (4) in dem der Tischplatte (2) zugewandten Randbereich befestigt. Beim Ausführungsbeispiel sind sowohl die Tischplatte (2) als auch die Ansetzplatte (4) aus Glas hergestellt, so daß sowohl der Lagerbock (25) als auch die Arretierplatte (29) an die jeweiligen Unterseiten angeklebt sind. Der Radius der Schwenkbewegung des Arretierhebels (27) ist größer als der Radius der Kurvenkontur der halbmondförmigen Arretierplatte (29), so daß sich die strichpunktiert dargestellte Bewegungsbahn (31) für die Rastkante (32) des Arretierhebels (27) (Fig. 7a) ergibt. Für die Festlegung der Ansetzplatte (4) an der Tischplatte (2) wird die Ansetzplatte (4) zunächst in die Nähe des Randbereiches der Tischplatte (2) gebracht. Anschließend wird der Arretierhebel (27) aus seiner strichpunktiert dargestellten Ruheposition in der schiefen Schwenkebene nach vorne verschwenkt, wobei seine Rastkante (32) an der Unterseite der Ansetzplatte (4) im Bereich der Kurvenkontur der Arretierplatte (29) zur Anlage kommt. Beim weiteren Verschwenken des Arretierhebels (27) zur Mitte hin wird die Ansetzplatte (4) automatisch nach oben gedrückt und an die Kante der Tischplatte (2) herangezogen. In der Endposition fluchtet die Ansetzplatte (4) mit der Oberfläche der Tischplatte (2). Zwischen den einander zugewandten Kanten von Ansetzplatte (4) und Tischplatte (2) befindet sich ein elastischer Stützgummi, der beim Heranziehen der Ansetzplatte (4) an die Tischplatte (2) zusammengedrückt wird. Dadurch entsteht eine Gegenkraft gegen die formschlüssige Haltekraft des Arretierhebels (27), wodurch die Arretierung aufrecht erhalten bleibt. Der Arretierhebel (27) übernimmt daher sowohl die vertikale Abstützung des Randbereiches der Ansetzplatte (4) nach unten als auch die Sicherung der Ansetzposition der Ansetzplatte (4) an der Tischplatte (2). Der Schwenkhebel kann aus der in Fig. 7a dargestellten Verriegelungsposition in beiden Richtungen gelöst werden.The support device according to FIGS. 7 and 7a has a locking lever (27) which is pivotably mounted on a stationary bearing block (25) about a pivot axis (26). The bearing block (25) is arranged in the edge region of the table top (2) on its underside. The bearing block (25) protrudes obliquely downwards and towards the edge of the table top (2) from the underside of the table top (2). The locking lever (27) is pivotally mounted on the bearing block (25) in a radial plane, wherein the radial plane - based on the horizontal surface of the table top (2) - represents an inclined plane. The storage of the locking lever (27) is so stable that it can absorb vertical loads on the locking lever (27). The locking lever (27) has an upwardly projecting, straight locking edge (32) which tangentially engages to lock and support the attachment plate (4) on a circular curve contour of a crescent-shaped locking plate (29). The crescent-shaped locking plate (29) is attached to an underside of the attachment plate (4) in the edge region facing the table plate (2). In the embodiment, both the table top (2) and the attachment plate (4) are made of glass, so that both the bearing block (25) and the locking plate (29) are glued to the respective undersides. The radius of the pivoting movement of the locking lever (27) is larger than the radius of the curve contour of the crescent-shaped locking plate (29), so that the dashed line (31) for the locking edge (32) of the locking lever (27) (Fig. 7a) results . To fix the attachment plate (4) to the table top (2), the attachment plate (4) is first brought into the vicinity of the edge area of the table top (2). The locking lever (27) is then pivoted forward from its rest position shown in dash-dotted lines in the inclined swivel plane, with its locking edge (32) resting on the underside of the attachment plate (4) in the region of the curved contour of the locking plate (29). When the locking lever (27) is pivoted further towards the center, the attachment plate (4) is automatically pushed upwards and pulled towards the edge of the table top (2). In the end position, the attachment plate (4) is flush with the surface of the table top (2). Between the mutually facing edges of the attachment plate (4) and table top (2) there is an elastic support rubber which is compressed when the attachment plate (4) is pulled up against the table top (2). This creates a counterforce against the positive holding force of the locking lever (27), whereby the locking is maintained. The locking lever (27) therefore takes over both the vertical support of the edge region of the attachment plate (4) downwards and the securing of the attachment position of the attachment plate (4) on the table top (2). The swivel lever can be released in both directions from the locking position shown in FIG. 7a.
Die Stützeinrichtung nach den Fig. 8 und 8a weist einen in einer vertikalen Schwenkebene verschwenkbaren Arretierhebel (27a) auf, der mittels eines Lagerbolzens um eine horizontale Lagerachse (26a) im oberen Bereich des Tischbeines (3) gelagert ist. Der Arretierhebel (27a) hintergreift in der dargestellten Verriegelungsposition eine an der Unterseite der Ansetzplatte (4) angeordnete, rechteckige Arretierplatte (29a). Die vertikale Stützung des Arretierhebels (27a) und damit auch die Stützung der Ansetzplatte (4) übernimmt ein am Tischbein (3) befestigter Stütznocken (33), auf dem der Arretierhebel (27a) in der Verriegelungsposition aufliegt. Zur Entriegelung kann der Arretierhebel (27a) horizontal nach außen gedrückt werden, bis er seitlich an dem Stütznocken (33) nach unten vorbeigleiten kann. Um das horizontale Wegschwenken des Arretierhebels (27a) zu ermöglichen, ist der Arretierhebel (27a) auf dem Lagerbolzen mittels einer Gummischeibe (34) seitlich wegdrückbar gelagert. Der Stütznocken (33) ist in vertikaler Richtung keilförmig gestaltet, so daß er eine Anlaufschräge besitzt, an der der Arretierhebel (27a) beim Hochschwenken aus der strickpunktiert dargestellten Ruheposition in seine Verriegelungsposition entlanggleitet und nach außen gedrückt wird.The support device according to FIGS. 8 and 8a has a locking lever (27a) which can be pivoted in a vertical pivoting plane and which is mounted in the upper region of the table leg (3) by means of a bearing pin about a horizontal bearing axis (26a). In the locking position shown, the locking lever (27a) engages behind a rectangular locking plate (29a) arranged on the underside of the attachment plate (4). The vertical support of the locking lever (27a) and thus also the support of the attachment plate (4) is carried out by a support cam (33) attached to the table leg (3), on which the locking lever (27a) rests in the locking position. To unlock the locking lever (27a) can be pressed horizontally outwards until it can slide down past the support cam (33). To enable the locking lever (27a) to pivot horizontally, the locking lever (27a) is supported on the bearing pin by means of a rubber washer (34) so that it can be pushed away to the side. The support cam (33) is wedge-shaped in the vertical direction, so that it has a run-on slope on which the locking lever (27a) slides along in its locking position and is pressed outwards when it is swiveled out of the rest position shown in broken lines.
Claims (15)
- Piece of furniture with a stationary board (2) and at least two supplementary boards (4, 4a), that are supported for movement about a mounting axis external to the contour of the supplementary boards, at a stationary mounting point (3) of said piece of furniture, and can be swung, and shifted in height about said mounting point (3), in parallel to said board (2), between a rest position below said stationary board (2) and an enlarging position in which it extends flush with the board level, characterised in that the at least two supplementary boards (4, 4a) are supported, in their rest position, in parallel superimposed arrangement and in different planes below said stationary board (2) and comprise guide means (7, 8; 7a, 8a) inclined at different angles, and that each supplementary board (4, 4a) is held by a supporting element (5, 5a) whose areas external to the contour of the supplementary board do not intersect the path of movement of the at least one other supplementary board (4, 4a).
- Piece of furniture according to claim 1, characterised in that said supplementary boards (4, 4a) are supported on one side of said stationary board (2).
- Piece of furniture according to claim 1 or 2, characterised in that said supplementary boards (4, 4a) are considerably thinner than said stationary board (2).
- Piece of furniture according to claim 1, characterised in that the difference between the angles of inclination of said guide means (7, 8; 7a, 8a) corresponds at least to the thickness of one of said supplementary boards (4, 4a).
- Piece of furniture according to one or more of claims 1 to 4, characterised in that said supplementary board (4, 4a) is mounted on the supporting arm (5, 5a) in a vertically adjustable way.
- Piece of furniture according to claims 1 to 5, characterised in that said guide means (19, 20; 22, 23) of said mounting point are arranged directly in the area of said stationary board (2) to allow for the swinging movement of said supplementary board (4, 4a).
- Piece of furniture according to claim 6, characterised in that said guide means (18, 19, 20, 21) are arranged in a cylindrical upper area of a supporting leg that supports said stationary board (2).
- Piece of furniture according to claim 6, characterised in that said guide means (21a, 22, 18a, 23) are provided with a cylindrical bearing stud (21a) arranged on a bottom face of said stationary board (2a).
- Piece of furniture according to any of claims 6 to 8, characterised in that said guide means are formed by at least one connecting link guide (20) and at least one mating sliding block (19), that are associated with one stationary and one swinging bearing element (21, 21a; 18, 18a) of the mounting means of said supplementary board (4, 4a), with at least part of said connecting link guide (20) being inclined at an angle that corresponds to the ratio between the swinging angle and the difference in height of said supplementary board (4, 4a) between its rest position and its enlarging position.
- Piece of furniture according to any of claims 6 to 8, characterised in that said guide means comprise threaded guides (22, 23).
- Piece of furniture according to any of claims 1 to 9, characterised in that in the enlarging position, the opposite marginal areas of said supplementary board (4, 4a) and said stationary board (2) can be coupled one with the other by supporting means (10, 11), at a point spaced from said mounting point (3).
- Piece of furniture according to claim 11, characterised in that said supporting means (10, 11) is provided with a locking element for fixing said stationary board (2) and said supplementary board (4, 4a) one relative to the other.
- Piece of furniture according to claim 12, characterised in that said supporting means comprises two mutually corresponding connection elements (10, 11) which are respectively associated, in the marginal area, with said supplementary board and said stationary board, respectively, and which can be connected one with the other positively or in a force-locking way through a swinging movement of said supplementary board (4, 4a) when the latter is moved into its enlarging position.
- Piece of furniture according to claim 13, characterised in that the connection elements are constituted by a locking pin (10) and a corresponding locking bore (11) which have their common connecting axis extending in parallel to said stationary board (2).
- Piece of furniture according to claim 11, characterised in that said supporting means comprises a stationary locking lever (27), that is arranged to perform a swinging movement along an inclined plane, and that, when performing said swinging movement for the purpose of locking and supporting said supplementary board (4), engages tangentially behind a crescent-shaped locking plate (29) on a lower face of said supplementary board (4), the crescent radius being smaller than the radius of the swinging movement of said locking lever (27).
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94100586A EP0663164B1 (en) | 1994-01-17 | 1994-01-17 | Piece of furniture with a stationary board and at least two supplementary boards |
DK94100586.0T DK0663164T3 (en) | 1994-01-17 | 1994-01-17 | Furniture with a stationary plate and at least two additional plates |
AT94100586T ATE159153T1 (en) | 1994-01-17 | 1994-01-17 | ITEM OF FURNITURE WITH A STATIONARY TOP AND WITH AT LEAST TWO ATTACHMENT TABLES |
DE59404338T DE59404338D1 (en) | 1994-01-17 | 1994-01-17 | Piece of furniture with a stationary plate and with at least two attachment plates |
ES94100586T ES2109518T3 (en) | 1994-01-17 | 1994-01-17 | FURNITURE WITH A FIXED TABLE AND AT LEAST TWO SUPPLEMENTARY TABLES. |
JP03845394A JP3362075B2 (en) | 1994-01-17 | 1994-03-09 | Furniture part with fixed plate and additional plate |
US08/245,553 US5520122A (en) | 1994-01-17 | 1994-05-18 | Furniture having a stationary top and articulated leaves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94100586A EP0663164B1 (en) | 1994-01-17 | 1994-01-17 | Piece of furniture with a stationary board and at least two supplementary boards |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0663164A1 EP0663164A1 (en) | 1995-07-19 |
EP0663164B1 true EP0663164B1 (en) | 1997-10-15 |
Family
ID=8215609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94100586A Expired - Lifetime EP0663164B1 (en) | 1994-01-17 | 1994-01-17 | Piece of furniture with a stationary board and at least two supplementary boards |
Country Status (7)
Country | Link |
---|---|
US (1) | US5520122A (en) |
EP (1) | EP0663164B1 (en) |
JP (1) | JP3362075B2 (en) |
AT (1) | ATE159153T1 (en) |
DE (1) | DE59404338D1 (en) |
DK (1) | DK0663164T3 (en) |
ES (1) | ES2109518T3 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1294451B1 (en) * | 1997-01-07 | 1999-04-12 | Margaritelli Italia Spa | MODULAR MODULAR TABLE EQUIPPED WITH TOP AND ROTATING DRAWERS |
US5775233A (en) * | 1997-03-28 | 1998-07-07 | Kendall; Charles S. | Integrated tripod riser |
US5769004A (en) * | 1997-04-22 | 1998-06-23 | Kendall Charles S | Stand integrated tripod riser |
US6959454B2 (en) * | 2003-02-14 | 2005-11-01 | Dewinter David S | Structure with extendable leaves |
ITTV20040019U1 (en) * | 2004-04-15 | 2004-07-15 | Vetraria Biancadese S A S Soc | Table with at least two extension hinges cantilevered on a fixed shelf |
DE102004063580A1 (en) * | 2004-12-27 | 2006-07-06 | Vel Vega-Design E Tecnologia Ind. Unip. Lda., Funchal | Furniture with movable furniture segment |
EP1871196B1 (en) * | 2005-04-13 | 2009-12-30 | Società Vetraria Biancadese s.a.s. | Table having two or more retractable extensions |
SE0802030L (en) * | 2008-09-24 | 2009-11-17 | Swedestyle Ab | Device for mounting a table top on a rack with drive means |
CN104382339A (en) * | 2014-09-15 | 2015-03-04 | 浙江莫霞实业有限公司 | Table plate rail type connecting structure |
CN104382340A (en) * | 2014-09-15 | 2015-03-04 | 浙江莫霞实业有限公司 | Hidden embedding variant type dining table |
CN104382338A (en) * | 2014-09-15 | 2015-03-04 | 浙江莫霞实业有限公司 | Sliding groove base used for table plate installation rail |
CN110013120A (en) * | 2019-05-19 | 2019-07-16 | 仙游县龙虎山古典家俱有限公司 | A kind of desktop expanded type dining table |
CN111466704A (en) * | 2020-05-06 | 2020-07-31 | 尹梅花 | Rotatable lengthened multifunctional bar counter table |
US11448359B2 (en) * | 2020-06-17 | 2022-09-20 | Att Southern Llc | Adjustable plant stand assembly |
CN113788429A (en) * | 2021-09-07 | 2021-12-14 | 广东电网有限责任公司 | Power maintenance frame |
US20240116636A1 (en) * | 2022-10-11 | 2024-04-11 | B/E Aerospace, Inc. | Console mounted tray table with helical pivot |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2674111A1 (en) * | 1991-03-20 | 1992-09-25 | Marin Marie Josephe | Table/bar with pivoting boxes |
DE4207743C2 (en) * | 1992-03-11 | 2001-03-08 | Matthias Fischer | Extendable table with extension plates |
-
1994
- 1994-01-17 DE DE59404338T patent/DE59404338D1/en not_active Expired - Fee Related
- 1994-01-17 AT AT94100586T patent/ATE159153T1/en not_active IP Right Cessation
- 1994-01-17 ES ES94100586T patent/ES2109518T3/en not_active Expired - Lifetime
- 1994-01-17 EP EP94100586A patent/EP0663164B1/en not_active Expired - Lifetime
- 1994-01-17 DK DK94100586.0T patent/DK0663164T3/en active
- 1994-03-09 JP JP03845394A patent/JP3362075B2/en not_active Expired - Fee Related
- 1994-05-18 US US08/245,553 patent/US5520122A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2109518T3 (en) | 1998-01-16 |
JPH07213347A (en) | 1995-08-15 |
DK0663164T3 (en) | 1998-06-02 |
US5520122A (en) | 1996-05-28 |
DE59404338D1 (en) | 1997-11-20 |
ATE159153T1 (en) | 1997-11-15 |
EP0663164A1 (en) | 1995-07-19 |
JP3362075B2 (en) | 2003-01-07 |
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