WO2023087041A1

WO2023087041A1 - Stand

Info

Publication number: WO2023087041A1
Application number: PCT/AT2022/060378
Authority: WO
Inventors: Maximilian Anatol KLAMMER
Original assignee: Klammer Maximilian Anatol
Priority date: 2021-11-17
Filing date: 2022-11-07
Publication date: 2023-05-25
Also published as: AT525043B1; AT525043A4

Abstract

The invention relates to a stand (1) having a plurality of elongate elements (3) which cross over one another, wherein each elongate element (3) has a first end (31), a second end (32) remote from the first end (31), and an intersection region (33) arranged between the first end (31) and the second end (32), wherein the elongate elements (3) are interconnected in regions of their first ends (31) via first joints (41), in regions of their second ends (32) via second joints (42), and in their intersection regions (33) via third joints (43) to form a continuously circumferentially extending, preferably asymmetrical scissor-lattice structure (7). In order to provide a robust stand (1) that is simple to assemble and disassemble, according to the invention each elongate element (32) comprises, in the region of the second end (32), at least one receptacle (10) for a flexible traction element (11), and the traction element (11) is guided through all the receptacles (10) such that the traction element (11) forms a ring connecting all the second ends (32) of the elongate elements (3).

Description

frame

The invention relates to a frame, in particular a furniture frame, for carrying or holding objects, with a plurality of elongate elements crossing one another, each elongate element having a first end, a second end remote from the first end and a crossing region arranged between the first and second ends has, wherein the elongate elements are connected to one another in areas of their first ends via first joints, in areas of their second ends via second joints and in their crossing areas via third joints to form an endlessly encircling—preferably asymmetrical, concertina lattice structure. The invention also relates to a method for producing this frame.

An element is referred to as elongate here, the extent of which in a longitudinal axis is a multiple, for example at least ten times or at least twenty times, its greatest width extent.

A holder for flower pots is known from ES 1 017 967 U, which has a body shaped as a rotational hyperboloid with two end rings with different diameters. Thread-like elements of polyester and fiberglass extend between the end rings, which are inclined at an angle to each other and arranged in different directions, forming a lattice-like structure. In the middle area, at the narrowest point of the body, there is another ring that serves as a mount, as a cover and as a fixation for the lattice-like structure. A receptacle for a flower pot is arranged inside the body. CN 106889827 A discloses a similar basket frame shaped as a hyperboloid for holding a flower pot.

DE 20 2020 002 245 U1 describes a folding frame with four pairs of rods connected like scissors, the individual rods of which are pivotably connected at their respective ends via a ring to an adjacent rod. In the crossing area, the rods of a pair are connected via a pivot point, which is arranged in such a way that the folding frame forms an asymmetrical scissor lattice structure. For stabilization, four further stabilizing rods are pivotably mounted in the rings at the lower ends of the folding frame, with the rods being connected to one another in an articulated manner at their free ends by a further ring. When erected, the stabilizing bars form a cross shape. The contact area defined by the lower ends of the rods and the usable area defined by the upper ends are unchangeably predetermined by the dimensions of the stabilizing rods. US Pat. No. 1,143,358 B1 relates to a tree skirt stand made from crossing rods. The rods are hingedly connected at their end positions.

US 2014 131 239 A1 shows a cover for a flower arrangement, with lateral bars being held together with a band.

WO 91/05921 A1 discloses a round, adjustable three-dimensional structure which is characterized by rods which are articulated at three positions. The perimeter and height of the structure are adjustable.

GB 748 874 A shows hinged slats which stabilize the legs of a foldable toilet seat.

From US 38 108 A a fence with crossed slats is known.

The object of the invention is to provide a robust and easy to assemble and disassemble frame for holding a flower pot, a table top or the like.

According to the invention, this object is achieved in that each elongate element has at least one receptacle for a flexible tension element in the region of the second end, and that the tension element is guided through all receptacles in such a way that the tension element forms a ring connecting all second ends of the elongate elements .

The tension element serves on the one hand to support the erecting process during production and on the other hand to fix the end position of the elongated elements in the finished frame. Furthermore, the target diameter of the frame that can be used for the object in the area of the second ends can be changed by the tension element and adapted to the respective application.

A scissor lattice is generally understood to mean a lattice consisting of a plurality of elongated elements crossing one another, which can be pushed together, with its crossing elements moving in the manner of scissors. Each elongate element has three joints, namely a first joint at a first end of the element, a second joint at a second end of the element and a third joint in an area of intersection of two elements. In the first joint, the element is connected to a first end of an adjacent element arranged on one side. In the second joint, the element is connected to a second end of a further adjacent element arranged on this side. In the third joint node, the element is connected to the crossing area of a crossing element. An asymmetrical concertina structure is understood to mean a concertina structure in which the third joint is arranged eccentrically between the first and the second joint.

Preferably, two elongate elements that intersect in a third joint in their intersection areas form an intersection pair, with the elongate elements of two adjacent intersection pairs each having a first joint in corresponding areas of first ends and each having a second joint in corresponding areas of second ends are articulated to each other.

Crossing is understood here to mean crossing two elongated elements lying one on top of the other, with each element being arranged such that it projects beyond the crossing area in both longitudinal directions. The arrangement of one end of an element in the crossing area of another element or the superimposed arrangement of the ends of two elements is not understood as crossing in this sense.

Endlessly circulating means that the concertina structure, consisting of a large number of pairs of crossings, has no beginning and no end.

In one embodiment of the invention, it is provided that each elongate element has a first hole in the area of its first end for the first joint, a second hole in the area of its second end for the first joint and a third hole in the crossing area for the third joint, wherein preferably the third bore is arranged eccentrically between the first and the second bore. The first, second and third bores are used to receive a first, second and third joint. The joints can be formed, for example, by rivets—particularly blind rivets—or screws—particularly in combination with sleeve nuts.

It is particularly advantageous if the third bore of each elongate element is arranged at a distance of between 18% and 48%, preferably between 25% and 45%, particularly preferably between 30% and 40% of the length of the elongate element from the first bore , where the length is defined as the distance between the first hole and the second hole.

In the assembled state, all first joints are arranged on a first circle, all second joints on a second circle and all third joints on a third circle. The first circle has the smallest diameter and the second circle has the largest diameter. The diameter of the third circle is around 18% to 48%, preferably between 20% and 45%, in particular preferably between 25% and 40% greater than the diameter of the first circle, based on the difference in diameters between the second circle and the first circle. The first circle, the second circle and the third circle are concentric, - in the fully assembled state concentric to the vertical axis of the frame - arranged.

In one embodiment of the invention, it is provided that the elongated elements are formed by rods or slats, preferably by slats—particularly preferably spring slats—of at least one bed slatted frame. Rods are usually round objects similar in cross-section to a stick. A slat is to be understood as an element with an angular cross-section, for example a rectangular element. Spring slats of bed slatted frames are designed to be curved along their longitudinal axis to generate a prestress.

The elongate elements consist, for example, of wood, metal or plastic and are preferably flexible in bending and/or torsion. Spring slats of bed slatted frames usually have these flexible and/or torsionally elastic properties. In the context of the invention, it is provided that old slats from rusting bed slats are processed as elongated elements.

In the context of the invention, the first ends are designed to be placed on a footprint when used as intended. In the fully assembled state of the frame, the first ends are arranged in a plane normal to the vertical axis of the frame in order to ensure a stable stand on the contact area. The second ends are preferably designed to hold or carry at least one object—for example a flower pot or a table top—when used as intended.

In one embodiment variant of the invention it is provided that the receptacle is formed by an eyelet. The pulling element is preferably formed by a rope, a band, a cord or a chain.

It is particularly advantageous if the receptacles are arranged on an inside of the frame.

In a further embodiment of the invention, it is provided that at least one holding device for holding an object, in particular a flower pot or a tabletop, is arranged on the inside of the frame - preferably in the area of the second ends of the elongate elements, the holding device preferably passing through the receptacles is formed. The recordings thus fulfill two functions: On the one hand, they serve to clamp the elongated ten elements in the upright position and to fix this position. On the other hand, the recordings serve as a holding device for a flower pot or a tabletop, for example.

According to the invention, the frame can be produced in a particularly simple and time-saving manner by the following steps:

• Providing a defined number of elongated elements;

• Connecting the elongate elements to form a—preferably flat—open scissor lattice structure with two open lattice ends;

• closing the lattice ends of the open concertina structure to a - preferably planar - closed concertina structure in the form of a non-convex regular - preferably planar - polygon, the outer corners of the polygon being formed by the second ends of the elongate elements;

• attaching a flexible tie to the second ends such that the flexible tie forms an open ring around the polygon;

• Erecting the closed concertina structure while applying a tensile force to the ends of the tensile elements until the diameter of the ring is reduced to a defined target diameter;

• Locking of the pulling element in the end position corresponding to the defined target diameter of the ring.

In this way, the frame can be manufactured in a short time and with little effort.

The invention is explained in more detail below with reference to the non-limiting exemplary embodiments shown in the figures. It shows, in part schematically:

1 shows a frame according to the invention in an axonometric representation;

Figure 2 shows an elongate element of the frame in an axonometric view;

3 shows a pair of crossings of the frame in an axonometric representation;

4 shows a concertina structure of a frame according to the invention in a first variant in an axonometric view;

5 shows a manufacturing step of this frame in a schematic plan view; 6 shows this production step in an axonometric representation;

7 manufacturing steps of a frame according to the invention in a second embodiment variant in a plan view;

8 manufacturing steps of this frame in a front view;

Fig. 9 manufacturing phases of this frame in an axonometric representation; and

Fig. 10 this frame in the erected state in an axonometric representation.

Identical parts are provided with the same reference symbols in the embodiment variants.

The frame 1 is used to hold an object 2. In the exemplary embodiments, the frame 1 is designed as a furniture frame for carrying or holding an object 2, for example a flower pot or a tabletop or the like.

1 shows a frame 1 according to the invention in the assembled state. The frame 1 consists of a large number of elongated elements 3 which are connected to one another via connections 4 to form a concertina structure 7 . The connections 4 are designed here as joints 41, 42, 43, which allow an articulated connection of the elongate elements 3 with a single degree of freedom.

Fig. 4 shows this concertina structure 7 in the open state - i.e. as an open concertina structure 7. Fig. 1, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10 show the concertina structure 7 each in the closed state - i.e. as a closed concertina structure 7.

As shown in FIG. 2 , each elongate element 3 has a first end 31 and a second end 32 and an intersection region 33 disposed between the first 31 and second end 32 . Each elongated element 3 has a first bore 51 in the area of the first end 31 , a second bore 52 in the area of the second end 32 and a third bore 53 in the area of intersection 33 . The third bore 53 is arranged eccentrically on the elongate elements in relation to the first bore 51 and the second bore 52, with a first distance a measured between the third bore 53 and the first bore 51 being smaller than a distance a between the third Bore 53 and the second bore 52 measured second distance b. In each elongate element 3, the third bore 53 and thus the third joint 43 is arranged at a distance a from the first bore 51, which is between 18% and 48%, preferably between 25% and 45%, particularly preferably between 30%. and 40% of the length c of the elongate element 3. The length c is defined as the distance between the first bore 51 and the second bore 52 or between the first joint 41 and the second joint 42 .

In each case two elongated elements 3, which cross in a third joint 43 in their crossing areas 33, form a pair of crossings 6 which can be seen in FIG.

The elongate elements 3 of two adjacent pairs of crossings 6 are connected to one another in an articulated manner via a first joint 41 in corresponding areas of first ends 31 and via a second joint 42 in corresponding areas of second ends 32 to form an asymmetrical concertina lattice structure 7, as shown in Fig. 4 is. The third joints 43 of the concertina structure 7 are eccentric

The two lattice ends 71, 72 of this open concertina structure 7 are connected to one another and formed into a frame 1 with a closed, circumferential concertina structure 7.

4, 5 and 6 show a first exemplary embodiment of a frame 1 according to the invention with twelve pairs of crossings 6, i.e. also twelve first joints 41, second joints 42 and third joints 43.

7, 8, 9 and 10 show a second exemplary embodiment of a frame 1 according to the invention with nine pairs of crossings 6, ie also nine first joints 41, second joints 42 and third joints 43 each.

In figures 5, 7, 8 and 9 the elongate elements 3 and joints 41, 42, 43 are shown schematically.

The first ends 31 of the elongate elements 3 serve as feet of the frame 1 and are designed to be placed on the ground or on another contact area 8 when used as intended. The first ends 31 are arranged in a plane q normal to the vertical axis la of the frame 1 (FIG. 8). The second ends 32 of the elongate elements 3 of the frame 1 are designed to hold or carry at least one object 2 when used as intended, for example a flower pot or a table top. In order to hold or carry the object 2, it is favorable if the frame 1 has at least one holding device 9 for the object 2 on the inside 1b in the region of the second ends 32 of the elongated elements 3.

It is particularly advantageous if the elongate elements 3 are flexible in terms of bending and/or torsion. The elongated elements 3 can be made of wood, metal or plastic.

In the exemplary embodiments, the elongate elements 3 are formed, for example, by elastic slats of a bed slatted frame, it being possible for the slats, for example made of wood, to be curved, as can be seen in FIG. 2, FIG. 3 and FIG. In particular, worn-out slats from old bed slatted frames can also be reused.

In other - not shown - embodiments of the invention, the elongate elements 3 are formed by posts, rods, tubes or other rod-like elements.

The elongated elements 3 of the frame 1 are articulated in areas of their first ends 31 via the first joints 41, in areas of their second ends 32 via the second joints 42 and in their crossing areas 33 via the third joints 43 to form the endlessly rotating concertina lattice structure 7. The first joints 41 and third joints 43 are formed in the exemplary embodiments by rivets, in particular blind rivets, which are applied in the first bores 51 or third bores 53 of two elongated elements 3 arranged one on top of the other and these elements 3 lying one on top of the other in the areas of the first Ends 31 or in the crossing areas 33 are held together in an articulated manner. The second joints 42 are formed by sleeve nuts inserted into the second bores 52 and screws screwed into them, in particular eyebolts, which hold two elongated elements 3 placed one on top of the other in the regions of their second ends 32 in an articulated manner. Spacer rings made of metal, plastic or rubber (not shown in any more detail) can be arranged between two elongated elements 3 placed one on top of the other. These allow a defined play of the elongated elements 3 in relation to the axes of the joints 41, 42.

Each elongate element 3 has in the region of the second end 32 at least one receptacle 10 for a flexible - preferably formed by an eyelet Tension element 11 on. The pulling element 11 can be formed, for example, by a cable, a band, a cord or a chain.

All first joints 41 of the frame 1 are arranged on a first circle kl, all second joints 42 on a second circle k2 and all third joints 43 on a third circle k3, the first circle, the second circle and the third circle being concentric to one Vertical axis of the frame are arranged (Fig. 7). The first circle kl has the smallest diameter dl and the second circle k2 has the largest diameter d2. The third diameter d3 of the third circle k3 is 18% to 48%, preferably 25% to 45%, particularly preferably 30% to 40% larger than the first diameter dl of the first circle kl, based on the difference d2 -dl the diameter d2, dl between the second circle k2 and the first circle kl. In Fig. 8 are the in - measured in the direction of the vertical axis la - height distances h _a between the third circle k3 and the first circle kl, hb between the second circle k2 and the third circle k3, and h _c between the second circle k2 and the drawn in the first circle kl. The height distances h _a , hb, h _c are in the same ratio to one another in every phase of the erecting process as the distances a, b, c or the diameter differences d3-dl, d2-d3 and d2-dl.

As can be seen from FIG. 10, each elongate element 3 has in the region of its second end 32 at least one receptacle 10 formed by an eyelet, for example a screw eyelet, for a flexible tension element 11. The pulling element 11 can be formed, for example, by a cable, a band, a cord or a chain. The pulling element 11 is guided through all receptacles 10 in such a way that the pulling element 11 forms a ring connecting all of the second ends 32 of the elongated elements 3 . The tension element 11 serves on the one hand to support the erecting process during production and on the other hand to fix the end position of the elongated elements 3 in the finished frame 1 d2 of the second circle k2 defined target diameter D of the frame 1 for the object 2 in the area of the second ends 32 can be changed and adapted to the respective application, as indicated by the arrows F in Fig. 5 and Fig. 6.

The receptacles 10 are ideally arranged on the inside 1b of the frame 1. This has the advantage that the receptacles 10 also function as a holding device 9 for the object 2, so that separate holding devices can be omitted.

The production of the frame 1 takes place with the following steps: • providing a defined number of elongated elements 3; in each elongate element 3, a first bore 51 for a first articulation 41 in the region of the first end 31, a second bore 52 for a second articulation 42 in the region of the second end 32 and a third bore 53 for a third articulation 43 in an eccentric Intersection area 33 between the first bore 51 and the second bore 52 is produced.

• Connecting the elongate elements 3 to form an ideally planar concertina structure 7 with two open lattice ends 71, 72 (FIG. 4); pairs of intersections 6 are formed from two elongated elements 3 each, in that the third bores 53 of two elongated elements 3 are connected to one another by a third joint 43 . The pairs of crossings 6 are joined together to form an open, flat concertina structure 7 by passing the first bores 51 of two elongated elements 3 of two pairs of crossings 6 through a first joint 41 and the first bores 51 of two elongated elements 3 of two adjacent pairs of crossings 6 through a second joint 42 be connected to each other.

• Closing the lattice ends 71, 72 of the open scissor lattice structure 7 to form a closed scissor lattice structure 7 in the form of a non-convex, regular—preferably planar or level—polygon 70—that is, a geometric star structure—(FIG. 5, FIG. 6, FIG. 7, Fig. 9), the outer corners of the polygon 70 - i.e. the outer vertices of the star structure - being formed by the second joints 42 of two elongate elements 3 connected at the second ends 32;

• attaching a flexible tension member 11 to the second ends 32 such that the flexible tension member 11 forms an open ring around the polygon 70 (Figures 5, 6); the flexible tension element 11 is advantageously not very stretchable in the direction of its longitudinal axis and has a modulus of elasticity E which corresponds to at least a defined minimum modulus of elasticity Emin. The defined minimum modulus of elasticity Emin can be 1 GPa, for example.

• Raising the closed concertina structure 7 while applying a tensile force F to the ends 111, 112 of the tension element 11 until the diameter of the ring is reduced to a defined target diameter D (FIG. 7, FIG. 8, FIG. 9);

• Locking of the pulling element 11 in the end position corresponding to the defined target diameter D of the ring by means of a locking device 12 indicated in FIG. 6, for example a clamping device for the pulling element 11 (FIG. 10). 5 and 6 show a manufacturing step of a frame 1 according to the invention in the first embodiment variant, the closed concertina structure 7 being in a flat, ideally level position.

7 to 9 show several production steps of a frame 1 according to the invention in the second embodiment variant, through which the frame 1 according to the invention moves from a flat, ideally planar position with the application of a tensile force F (see Fig. 5, Fig. 6) is erected on the traction device 11 according to the arrows P. The traction mechanism 11 is not shown in FIGS. 7 to 9 for reasons of clarity. In this case, A designates a first step of the erecting process, in which the, for example, essentially flat concertina structure 7 is closed to form a non-convex, regular polygon 70 . An intermediate step is denoted by C, in which the closed concertina lattice structure 7 indicated by dashed lines is partially erected. In step C, the closed concertina structure 7 is fully erected - the frame 1 is in its final position. Due to the fact that the concertina structure 7 is designed asymmetrically, the frame 1 can have a conical shape in the fully erected state.

After locking the pulling element 11 by means of the locking device 12, the frame 1 can be fitted with the desired object 2--for example a flower pot or a tabletop.

Claims

PATENT CLAIMS Frame (1), in particular a furniture frame, for carrying or holding objects (2), with a plurality of elongate elements (3) crossing one another, each elongate element (3) having a first end (31), a first end ( 31) opposite second end (32) and a crossing area (33) arranged between the first end (31) and the second end (32), the elongate elements (3) being connected to one another in areas of their first ends (31) via first joints (41), in areas of their second ends (32) via second joints (42) and in their crossing areas (33) via third joints (43) to form an endlessly circulating - preferably asymmetrical concertina lattice structure (7), characterized in that each elongate element (32) has at least one receptacle (10) for a flexible tension element (11) in the area of the second end (32), and that the tension element (11) is guided through all receptacles (10) in such a way that the tension element ( 11) forms a ring connecting all second ends (32) of the elongate elements (3). Frame (1) according to Claim 1, characterized in that two elongate elements (3) which cross each other in a third joint (43) in their crossing areas (33) form a crossing pair (33), and the elongate elements ( 3) two adjacent pairs of crossings (33) are articulated to each other via a first joint (41) in corresponding areas of first ends (31) and via a second joint (32) in corresponding areas of second ends (32). Frame (1) according to claim 2, characterized in that the scissor lattice structure (7) has at least three pairs of crossings (33), and preferably a maximum of twenty pairs of crossings (33). Frame (1) according to any one of Claims 1 to 3, characterized in that each elongate element (3) has a first bore (51) in the region of its first end (31) for the first articulation (41), a second bore (52) in the region of its second end (32) for the second joint (42) and a third bore (53) in the crossing region (33) for the third joint (43), the third bore (53) preferably being eccentric between the first bore ( 51) and the second bore (52) is arranged. Frame (1) according to any one of claims 1 to 4, characterized in that the third bore (53) of each elongate element (3) in a A distance between 18% and 48%, preferably between 25% and 45%, particularly preferably between 30% and 40% of the length (c) of the elongate element (3) is arranged away from the first bore (51), the length ( c) is defined as the distance between the first bore (51) and the second bore (52). Frame (1) according to one of claims 1 to 5, characterized in that all first joints (41) on a first circle (kl), all second joints (42) on a second circle (k2) and all third joints (43) are arranged on a third circle (k3), the first circle (kl) having the smallest diameter (dl) and the second circle (k2) having the largest diameter (d2), and wherein preferably the first circle (kl), the second Circle (k2) and the third circle (k3) concentrically - in particular to a vertical axis (la) of the frame (1) - are arranged. Frame (1) according to Claim 6, characterized in that the diameter (d3) of the third circle is 18% to 48%, preferably between 25% and 45%, particularly preferably between 30% and 40% larger than the first diameter (dl) of the first circle (kl), based on the difference in diameter (d2, dl) between the second circle (k2) and the first circle (kl). Frame (1) according to one of Claims 1 to 7, characterized in that the elongate elements (3) are formed by rods or slats, preferably by slats of at least one bed slatted frame, in particular designed as spring slats. Frame (1) according to one of Claims 1 to 8, characterized in that the elongate elements (3) are designed to be flexible in bending and/or torsion. Frame (1) according to any one of Claims 1 to 9, characterized in that the elongate elements (3) are made of wood, metal or plastic. Frame (1) according to one of Claims 1 to 10, characterized in that the first ends (31) are designed to be placed on a standing surface (8) when used as intended. Frame (1) according to one of Claims 1 to 11, characterized in that the second ends (32) are designed to hold or carry at least one object (2) when used as intended. Frame (1) according to one of Claims 1 to 12, characterized in that the receptacle is formed by an eyelet. Frame (1) according to one of Claims 1 to 13, characterized in that the tension element (11) is formed by a cable, a band, a cord or a chain. Frame (1) according to one of Claims 1 to 14, characterized in that the receptacles (10) are arranged on an inside (lb) of the frame (1). Frame (1) according to one of claims 1 to 15, characterized in that on an inner side (lb) of the frame (1) - preferably in the region of the second ends (32) of the elongated elements (3) - at least one - preferably several - Holding device(s) (9) for holding an object (2), in particular a flower pot or a tabletop, is arranged, with at least one holding device (9) preferably being formed by a receptacle (10). Method for manufacturing a frame (1) according to one of Claims 1 to 16, characterized in that the following steps are carried out:

• providing a defined number of elongated elements (3);

• Connecting the elongate elements (3) to form a—preferably flat—open scissor lattice structure (7) with two open lattice ends (71, 72);

• Closing the lattice ends (71, 72) of the open scissor lattice structure (7) to a - preferably closed - scissor lattice structure (7) in the form of a non-convex regular - preferably flat - polygon (70), the outer corners of the polygon (70) through the second ends (32) of the elongate elements (3) are formed;

• attaching a flexible tension member (11) to the second ends (32) such that the flexible tension member (11) forms an open ring around the polygon (70);

• erecting the closed concertina structure (7) while applying a tensile force (F) to the ends of the tensile elements (111, 112) until the diameter of the ring formed by the flexible tensile element (11) is reduced to a defined target diameter (D);

• Locking of the pulling element (11) in the end position corresponding to the defined target diameter (D) of the ring.

18. Use of the frame (1) according to any one of claims 1 to 17 as a flower pot stand or as a table top support.

2022 11 07

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