Folding table with separable support bracket group

The support fitting group with a pivotally mounted support rod and locking mechanism addresses the ease of use and security issues in folding tables, providing a cost-effective solution for stable operation and storage.

DE102024003931A1Pending Publication Date: 2026-05-28BRUNN GMBH & CO KG
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Patent Information

Application Number
DE102024003931
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing folding tables with lockable fittings are not easy to use, safe, and cost-effective, particularly in terms of securing the position of the table legs relative to the tabletop during folding and unfolding.

Method used

A support fitting group with a support rod pivotally mounted on the table leg, featuring a force-fit and positive connection in the operating position, and a positive and/or force-fit locking mechanism in the storage position, allowing for easy setup and secure locking of the table legs.

Benefits of technology

Enables easy and secure conversion between operating and storage positions of the folding table, ensuring stability and safety during use and storage, while maintaining cost-effectiveness.

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Abstract

The invention relates to a folding table with a tabletop and at least one table leg that can be folded out and in individually relative to the tabletop. A support fitting assembly secures the position of the table leg relative to the tabletop in both an operating position and a storage position. The support fitting assembly comprises at least one support fitting attached to the tabletop and a support rod pivotally mounted on the table leg. In the operating position, the support rod rests against the support fitting. The table leg and the support rod are parts of a foot assembly pivotally mounted on the tabletop by means of a pivot fitting assembly. The support rod has an end-face support surface that, in the operating position, rests forcefully against a support surface of the support fitting. In the storage position, the end-face support surface is separated from the support surface.Furthermore, in the storage position, the support fitting locks the foot assembly in a form-fitting and / or force-fit manner. The present invention develops a folding table with an easy-to-use, safe and cost-effective support fitting group.
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Description

[0001] The invention relates to a folding table with a tabletop and with at least one table leg that can be folded out and in individually relative to the tabletop, wherein a support fitting group secures the position of the table leg relative to the tabletop both in the operating position in which the table leg is unfolded and in the storage position in which the table leg is folded in, wherein the support fitting group has at least one support fitting attached to the tabletop and a support rod pivotally mounted on the table leg and wherein, in the operating position, the support rod rests against the support fitting.

[0002] Folding tables with lockable fittings are known from EP 2 081 466 A1. When the table legs are folded in and out, a support rod is adjusted along a fitting on the tabletop side.

[0003] The present invention is based on the problem of developing a folding table with an easy-to-use, safe and cost-effective support fitting group.

[0004] This problem is solved by the features of the main claim. The table leg and the support rod are components of a leg assembly pivotally mounted on the tabletop by means of a pivot fitting. The support rod has a support surface on its end face, which, in the operating position, rests against a support surface of the support fitting in a force-fit manner. In the storage position, the support surface is separated from the support surface. Furthermore, in the storage position, the support fitting locks the leg assembly in place by means of a positive and / or force-fit connection.

[0005] In its operating position, the folding table rests on a surface, such as the floor of a room, using its leg(s). In its storage position, the folding table lies with the tabletop facing down, with the legs folded in. The legs are unfolded from the storage position before the entire folding table is turned upside down and placed on its leg(s). The legs are folded back in after the folding table is laid on its tabletop.

[0006] The folding table can have one or more legs, which can be swivelled individually or in groups relative to the tabletop. A leg group comprises at least one leg and a support rod that is swivelled to the leg. The entire leg group can be swivelled relative to the tabletop.

[0007] The support fitting assembly comprises the support rod and a support bracket located on the underside of the tabletop. In the operating position, the support rod and the support bracket are positively connected. For example, part of the force transmission runs from the tabletop via the support bracket and the support rod to the table leg. In the storage position, the support fitting assembly is separated. For example, the support rod lies within the support bracket and protrudes from it.

[0008] In both the operating and storage positions, the position of the support fitting relative to the base assembly can be positively locked. In the operating position, for example, a gravity-controlled locking element secures the support fitting assembly. In the storage position, the base assembly is detachably joined to the support fitting, for example, by press-fitting.

[0009] To unfold the leg assembly, the operator swings it out of the support bracket. As soon as the leg assembly hits a stop on the tabletop side, the support rod is swung into the support bracket relative to the table leg until, for example, the support surface of the support rod rests against the support surface of the support bracket. The folding table can then be set up in its operating position.

[0010] To fold down the footrest, the operator lays the folding table down with the tabletop facing downwards. They can then swivel the support rod outwards relative to the table leg and swivel the entire footrest inwards relative to the tabletop until the footrest is held in the support bracket.

[0011] Further details of the invention will become apparent from the dependent claims and the following descriptions of the embodiments schematically illustrated in the figures. The figures show: Fig. 1: Folding table in an operating position; Fig. 2: Folding table in a storage position; Fig. 3: Support rod; Fig. 4: Support fitting; Fig. 5: Longitudinal section of the Fig. 4; Fig. 6: Partial longitudinal section of the folding table in the operating position; Fig. 7: Partial longitudinal section of the folding table in the storage position; Fig. 8: Detail of the securing mechanism in the storage position.

[0012] The Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. Figure 8 shows a folding table (10). Such folding tables (10) are stored in a storage position (11), see Figure 8. Fig. 2, e.g. stored stacked and, if required, in an operating position (12), see. Fig. 1, set up.

[0013] The individual folding table (10) has at least one table leg (32) which is pivotally mounted on a tabletop (13) about a pivot axis (25). The pivot axis (25) lies parallel to the flat underside (14) of the tabletop (13). The folding table (10) can be a bar table, a dining table, a side table, etc.

[0014] In the exemplary embodiment, the folding table (10) has two table legs (32) designed as column feet (32). These have a bearing crossbar (33) located at the top in the operating position (12), a central column element (34), and a lower support crossbar (35). The column element (34) can, for example, have several tubes parallel to each other and oriented in the vertical direction (7). It is also conceivable to design the folding table (10) with three or four table legs (32).

[0015] The individual table leg (32) is mounted on the tabletop (13) by means of a swivel fitting assembly (21). Each swivel fitting assembly (21) has, for example, three swivel bearing blocks (22-24) in which the bearing traverse (33) is mounted. The swivel axis (25) of the swivel fitting assembly (21) passes through all swivel bearing blocks (22-24). In the area of ​​the two outermost swivel bearing blocks (22, 24), the bearing traverse (33) has a stacking buffer (36) in each case. In the illustration of the Fig. 2. These stacking buffers (36) project upwards. The central pivot bearing block (23) has a stop plate (37) on which the bearing crossbeam (33) rests in the area of ​​the column element (34) in the operating position (12).

[0016] The two table legs (32) are arranged as mirror images of each other, e.g., offset from each other in the longitudinal direction (5) of the folding table (10). In the storage position (11), the support crossbars (35) point towards each other. The support crossbars (35) can be straight or curved. In the exemplary embodiment, they have support buffers (38) at their ends.

[0017] In the operating position (12), the height of each individual table leg (32) is, for example, 720 millimeters. At a height of, for example, three-quarters of this height, the individual table leg (32) has a double tab (39) on its inner side. A support rod (52) is mounted in this double tab (39) and is pivotally mounted in it by means of a clamping bolt assembly (44). The clamping bolt assembly (44) has a clamping bolt (42) which carries clamping discs (43) at both ends. These clamping discs (43) have, for example, a circular cross-sectional area. In this embodiment, their diameter is 20 millimeters each. The overall width of the clamping bolt assembly (44), oriented in the transverse direction (6), has a nominal dimension of 17.5 millimeters in this embodiment. In the operating position (12), the angle enclosed by the support rod (52) and the tabletop (13) is, for example, 53 degrees. This angle can be between 30 degrees and 75 degrees.A table leg (32), together with a support rod (52) and the clamping bolt unit (44) connecting these two parts, forms a leg assembly (41). This leg assembly (41) as a whole can be pivoted relative to the table top (13) about the pivot axis (25) of the pivot fitting assembly (21).

[0018] The Fig. Figure 3 shows a support rod (52). The individual support rod (52) has a length of, for example, 210 millimeters. It has a pivot point (53) with an opening (54) for receiving the clamping bolt (42) and a support point (55) integrally formed with the pivot point (53). In the exemplary embodiment, the support point (55) is cylindrical. Its outer diameter is, for example, 80% of the total length of the support rod (52). Instead of a cylindrical shape, the support point (55) can also be cuboid, prismatic, etc.

[0019] The support rod (52) is manufactured, for example, from a metallic tube using forming, cutting, and joining processes. The material used is, for example, a steel alloy. The end (56) facing away from the pivot point (53) is closed. The outer surface of the end (56) forms a support surface (57). This is, for example, the end face of the support rod (52). In the exemplary embodiment, the support surface (57) is designed as a flat surface. This is oriented perpendicular to the longitudinal extent of the support rod (52). It is also conceivable to design the support surface (57) as an inclined surface. The support surface (57) can also have, for example, a simply curved, a concave, or a convex shape.

[0020] The length of the support rod (52) can be adjustable. For example, the base (56) can be arranged on a screw-in part that can be screwed in or out relative to the pivot point (53). The set length can be secured, for example, by means of a lock nut.

[0021] A support fitting (62) is attached to the underside (14) of the tabletop (13). For example, the support fitting (62) is screwed to the tabletop (13). However, the support fitting (62) can also be glued to the tabletop (13). In the exemplary embodiment, the support fitting (62) is arranged on the tabletop (13) such that its central longitudinal plane penetrates the support rod (52) centrally. Furthermore, in the operating position (12), the support surface (57) of the support rod (52) rests against a support surface (63) of the support fitting (62). In the exemplary embodiment, the support fitting (62), a storage channel (81) aligned with the support fitting (62), and the support rod (52) form a support fitting assembly (61).

[0022] The Fig. 4 and Fig. Figure 5 shows a support fitting (62) in an isometric view and in a longitudinal section. The support fitting (62) is made, for example, of a thermoplastic or a thermosetting plastic. It has, for example, a length of 120 millimeters, a width of 55% of this length, and a height of 23% of the aforementioned length. A groove (64) oriented in the longitudinal direction (5) is closed on the side facing the table leg (32) by means of a groove wall (65).

[0023] The inner wall (66) of the groove wall (65) is inclined. The angle of the inner wall (66) to the base (67) of the support fitting (62) corresponds, for example, to the angle that the support rod (52) forms with the tabletop (13). In the exemplary embodiment, a magnet (68) is screwed into the groove wall (65). The magnet (68) is, for example, a permanent magnet with a circular pole face (69).

[0024] The support surface (63) is formed at the bottom of the groove (64). This forms a right angle with the inner wall (66), for example. The plane of the pole surface (69) and the plane of the support surface (63) intersect in a straight line oriented in the transverse direction (6), which runs in the base surface (67) of the support fitting (62). In the sectional view of the Fig. In section 6, the length of the support surface (63) corresponds to the diameter of the support surface (57) of the support rod (52). The support surface (63) can have an angle relative to the base surface (67) other than that specified. It can also be uniaxially curved or biaxially arched. Furthermore, the support surface (63) can be designed such that its angle relative to the base surface (67) and / or its position in space is adjustable. For this purpose, the support surface (63) can, for example, be arranged on a support adapter located in the support fitting (62).

[0025] Offset towards the groove opening (71) and relative to the support surface (63), two congruent, straight guide grooves (72) are embossed in the support fitting (62). In the exemplary embodiment, these guide grooves (72) are elongated. They run in the illustrations of the Fig. 5, Fig. 6 to Fig. 7 normal to the plane of the support surface (63). The angle enclosed by the straight guide channels (72) with the base surface (67) can be smaller than the angle enclosed by the inner wall (66) with the base surface (67). For example, this angle is at least 30 degrees and corresponds at most to the aforementioned angle between the inner wall (66) and the base surface (67). A design with a single guide channel (72) is also conceivable.

[0026] The at least one guide channel (72) can have curves and / or different gradients relative to the base surface (67) in sections. For example, an angle enclosed by a section of the guide channel (72) and the base surface (67) is at least 20 degrees and at most 80 degrees.

[0027] In the exemplary embodiment, the guide grooves (72) on the base surface (67) have a transverse insertion opening (73) for inserting a locking element (76). In the illustration of the Fig. 6. The guide channels (72) project beyond the support surface (63) by at least 125% of the guide channel width. In the exemplary embodiment, the guide channel width is 8.9 millimeters.

[0028] The groove (64) has a locking area (74) and a storage area (75) in the direction of the groove opening (71) facing away from the inner wall (66). The locking area (74) adjoins, for example, the guide grooves (72). In the exemplary embodiment, the length of the locking area (74) is 20% of the length of the support fitting (62). The locking area (74) has a cross-sectional area that is constant along its length, e.g., rectangular. The depth of the locking area (74) is, for example, 72% of the height of the support fitting (62). For example, the locking area (74) can have an insertion chamfer on its side facing away from the base surface (67). The nominal width of the locking area (74) corresponds to the nominal dimension of the clamping bolt unit (44). The clamping bolt unit (44) and the locking groove (74) are designed as an interference fit.

[0029] For example, the clamping bolt unit (44) has an interference of one to two tenths of a millimeter. It is also conceivable to design the cross-sectional area of ​​the locking region (74) with interlocking lugs. When the clamping bolt unit (44) is inserted, the interlocking lugs then engage behind the clamping discs (43).

[0030] The storage area (75) is trough-shaped. For example, its cross-sectional area is bounded by a semi-ellipse. The diameter of the small circle of curvature is, for example, larger than the diameter of the support rod (52).

[0031] The storage area (75) is connected to the storage channel (81). The storage channel (81) has the same cross-section at its apex as the storage area (75). The sum of the lengths of the securing area (74), the storage area (75), and the storage channel (81) is at least equal to the length of the support rod (52).

[0032] The locking element (76) is mounted in the guide grooves (72), see the Fig. 6 and Fig. 7. In the exemplary embodiment, the locking element (76) is designed as a cylindrical bolt that lies loosely in both guide grooves (72) parallel to the table top (13). The cross-section of the locking element (76) is, for example, 90% of the guide groove width.

[0033] The locking element (76) can also be designed as a sphere, cuboid, prism, cone, etc. It can be guided on one or two sides in the support fitting (62). It is also conceivable to design the locking element (76) to be, for example, insertable into the support fitting (62) on one side or fixed in the support fitting (62).

[0034] The representations of Fig. 1 and Fig. Figure 6 shows the folding table (10) in its operating position (12). The table legs (32) are, for example, perpendicular to the tabletop (13). It is also conceivable to arrange the table legs (32) at an angle to the tabletop (13) in the operating position (12). For example, in a side view, the table legs (32), the tabletop (13), and the floor would then form a trapezoid.

[0035] The support rod (52) is deflected relative to the table leg (32) in the operating position (12). Its free end, which has the base (56), projects into the support fitting (62). The support surface (63) of the support fitting (62) rests on the bearing surface (57) of the support rod (52). The force flow from the tabletop (13) to the table leg (32) thus passes via the support surface (63) of the support fitting (62) and the bearing surface (57) of the support rod (52). The contact between the bearing surface (57) and the support surface (63) can be a point contact, a line contact, or an area contact. In the exemplary embodiment, the support surface (63) contacts the entire bearing surface (57).

[0036] In the operating position (12), the support rod (52) rests against the magnet (68). This fixes the position of the support rod (52) relative to the support fitting (62). The magnet (68) may be adjustable, allowing, for example, the adjustment of the position of the support rod (52) in the operating position (12).

[0037] The locking element (76) is located in the guide grooves (72) as shown in the illustration of the Fig. 6 at the lower end of the guide channels (72). In this locked position (78), the locking element (76) prevents the support rod (52) from accidentally pivoting and / or separating from the support fitting (62).

[0038] To move the folding table (10) from the operating position (12) to the position in the Fig. 2 and Fig. To bring the folding table (10) into the storage position (11) shown in Figure 7, it is first turned upside down so that the usable side of its tabletop (13) rests, for example, on the floor. The underside (14) faces upwards. The foot assemblies (41) initially remain in the same position relative to the tabletop (13) as shown in Figure 7. Fig. 1 and Fig. 6 shown.

[0039] In the guide grooves (72), the locking element (76) slides to the table-side end of the guide grooves (72). In this release position (77), the locking mechanism of the support fitting group (61) is released. The support rod (52) can now be manually swung out. The swinging action is performed in the direction of the base crossbar (35) of the associated table leg (32). The support fitting group (61) is now separated.

[0040] The entire foot assembly (41) is then pivoted about the pivot axis (25) towards the tabletop (13). During this movement, the base (56) of the support rod (52) contacts the storage area (75) of the support fitting (62) or the storage channel (81). The base (56) slides along the storage channel (81) until the clamping bolt unit (44) engages in the locking area (74). For example, both clamping discs (43) are fully received in the locking area (74). As the clamping bolt unit (44) engages, the locking area (74) is elastically deformed, thus securing the engaged clamping bolt unit (44) by positive and / or non-positive locking. Fig. Figure 8 shows the foot group (41) secured in the storage position (11).

[0041] It is also conceivable to secure the support rod (52) of the foot assembly (41). The support fitting (62) can clamp the pivot point (53) and / or the support point (55).

[0042] To reset the folding table (10), with the tabletop (13) initially in its unchanged position, both leg groups (41) are swung out relative to the tabletop (13). The support rods (52) are inserted with their bases (56) into the support fittings (62) so that the support surface (57) rests against the support surface (63). The support fitting groups (61) are temporarily joined. During this process, the support rods (52) engage with the magnets (68). The operator receives audible confirmation of the correct position of the support rod (52) relative to the support fitting (62) due to the click. The locking elements (76) initially remain in the position shown in the Fig. 7 shown solution position (77).

[0043] After the foot assemblies (41) are set up, the folding table (10) is rotated so that it can be placed on the table legs (32). The foot assemblies (41) remain in their position relative to the tabletop (13). The locking elements (76) fall into their locked position (78) under the influence of gravity, cf. Fig. 6. The support fitting groups (61) are locked against accidental separation.

[0044] Combinations of the exemplary embodiments are also conceivable. Reference symbol list: 5 Longitudinal direction 6 transverse direction 7 Altitude 10 folding tables 11 Storage location 12 Operating situation 13 Tabletop 14 Underside of (13) 21 Swivel fitting group 22 Swivel bearing block 23 Swivel bearing block, middle swivel bearing block 24 Swivel bearing block 25 Swivel axis 32 Table base, column base 33 Bearing crossbeam 34 column elements 35 Stand traverse 36 stacking buffers 37 Stop plate 38 Stand buffers 39 Double flap 41 Foot Group 42 clamping bolts 43 clamping discs 44 clamping bolt unit 52 support pole 53 Linkage area 54 Breakthrough 55 Support area 56 Floor 57 Support surface 61 Support fitting group 62 Support fitting 63 Support surface 64 Nut 65 Grooved wall 66 Inner wall of (65) 67 Base area of ​​(62) 68 Magnet 69 Polar area 71 Groove opening 72 female leaders 73 Insertion opening 74 Security area 75 storage area 76 locking bodies 77 Solution position 78 Locking position 81 Storage trough QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 2 081 466 A1

[0002]

Claims

Folding table (10) with a tabletop (13) and with at least one table leg (32) that can be folded out and in individually relative to the tabletop (13), wherein a support fitting group (61) secures the position of the table leg (32) relative to the tabletop (13) both in an operating position (12) in which the table leg (32) is folded out and in a storage position (11) in which the table leg (32) is folded in, wherein the support fitting group (61) has at least one support fitting (62) attached to the tabletop (13) and a support rod (52) pivotally mounted on the table leg (32), and wherein in the operating position (12) the support rod (52) is supported on the support fitting (62), characterized in that the table leg (32) and the support rod (52) are parts of a pivotable assembly (21) attached to the tabletop (13). supported foot group (41) are,- that the support rod (52) has an end-face support surface (57),which in the operating position (12) rests forcefully against a support surface (63) of the support fitting (62), - that in the storage position (11) the support surface (57) is separated from the support surface (63) and - that in the storage position (11) the support fitting (62) locks the foot assembly (41) in a form-fit and / or force-fit manner. Folding table (10) according to claim 1, characterized in that it has two table feet (32) designed as column feet (32). Folding table (10) according to claim 1, characterized in that in the operating position (12) the support surface (57) and the support surface (63) are in contact with each other. Folding table (10) according to claim 3, characterized in that the support surface (57) and the support surface (63) are designed as flat surfaces. Folding table (10) according to claim 1, characterized in that the length of the support rod (52) is adjustable. Folding table (10) according to claim 1, characterized in that a gravity-controlled locking element (76) is mounted in the support fitting (62). Folding table (10) according to claim 6, characterized in that the locking body (76) is guided in at least one guide groove (72), wherein at least one section of the guide groove (72) encloses an angle of at least 20 degrees and at most 80 degrees with a base surface (67) of the support fitting (62). Folding table (10) according to claim 1, characterized in that in the storage position (11) a clamping bolt unit (44) of the foot group (41) which supports the support rod (52) on the table base (32) is held in the support fitting (62). Folding table (10) according to claim 1, characterized in that in the storage position (11) a support area (55) of the support rod (52) lies in a storage groove (81).

Citation Information

Patent Citations

  • Folding table

    EP2081466A1