The fall throw

By using eccentric joints to pivotally mount the end walls on the tub, the folding box or grill can be easily assembled and disassembled without tools, achieving compact storage and secure, firm standing when in use.

DE102020008224B4Active Publication Date: 2025-06-26ZIRK EDUARD
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Patent Information

Application Number
DE102020008224
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-10-06
Publication Date
2025-06-26
Estimated Expiration
2040-10-06

AI Technical Summary

Technical Problem

Existing folding boxes and grills require tools and small connectors for assembly and disassembly, and they do not fold down to a minimum volume without aids while maintaining secure cohesion and firm standing.

Method used

The end walls are pivotably mounted on both sides in an eccentric joint, with the eccentric pivot axis located on the tub, and paired coaxially with a bar or foot that covers the eccentrics with folded edges, securely engaging the end walls under hooks formed at the ends of the upper edge of the longitudinal walls.

Benefits of technology

This design allows the folding box or grill to be easily folded and unfolded without tools, achieving a minimum volume when folded and maintaining secure cohesion and firm standing when fully unfolded.

✦ Generated by Eureka AI based on patent content.

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Abstract

Folding box, in particular a standing grill, consisting of a tub (4) with end and longitudinal walls (1a, 1b;6a, 6b) and stands (5a, 5b), which is compactable, characterized in that in a fold (A50) of the stand (5a, 5b) two spaced-apart joint bores (A2a, A3a) are provided to form spatially arranged eccentric joints, wherein a first joint has a joint pin (A3) which extends in the joint bore (A3a) of the fold (A50) of the stand (5a, 5b) and a joint bore of the longitudinal wall (6a, 6b) and wherein a second joint has a joint pin (A2) which extends in the joint bore of a fold (A10) of the end wall (1a, 1b) and the other joint bore (A2a) of the fold (A50) of the stand (5a, 5b), so that the end wall (1a, 1b) is pivoted in a standing position, whereby the end wall (1a, 1b) securely engages under hooks (8) formed at the ends of the upper edge of the longitudinal walls (6a, 6b), and the end wall (1a, 1b) is foldable and released in an unlocking position;
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Description

[0001] The invention relates to a folding box according to the preamble of patent claim 1.

[0002] Such known folding boxes and / or grills are usually assembled from individual parts of a kit, allowing them to be stored compactly when disassembled. Assembly and disassembly always require the use of tools and small connectors.

[0003] From DE 20 2009 017 435 U1 a folding box with a tub and end and longitudinal walls is known, wherein in order to bring the end and longitudinal walls into a transport state the end and longitudinal walls are connected to the tub via a pivot joint.

[0004] The object of the invention is to provide a folding box which can be folded down to a minimum volume without any aids and, conversely, can be easily unfolded, whereby when fully unfolded it has a secure cohesion of the components and a firm stand.

[0005] To achieve this object, the invention has the features of patent claim 1.

[0006] The eccentric solution consists in the end walls being pivotably mounted on both sides in an eccentric joint, the corresponding eccentric pivot axis of which is located on the tub, with eccentric joints being arranged in pairs coaxially with an associated bar or foot, which covers them with folded edges, firmly connected or formed as one piece, so that the eccentrics have raised the end walls whenever the bar in question has been pivoted into a locked position or, if applicable, the foot in question has been pivoted into a standing position, whereby the end walls securely engage under hooks formed at the ends of the upper edge of the front and rear longitudinal walls.

[0007] Advantageous embodiments, in particular the bar as a foot and a further development as a grill device are covered in the subclaims.

[0008] The main components are articulated connectors and solid, essentially flat parts, in particular laser-cut or punched bent parts made of steel suitable for barbecue equipment. The high compactness of the folding boxes and free-standing grills results from the fact that in the unlocked position or when the stands are pivoted under the tub, the end walls and the front and rear longitudinal walls are released for folding. The latter are each held at the bottom by pivot bearings on a narrow upstand of the base tub. The end walls can be folded over one another in lateral bearings located close to the tub floor and, if necessary, placed over a grill grate. The end walls can then be folded firmly in place, pivoting around the eccentrics, in particular eccentric discs, which are arranged at the appropriate height for this purpose.

[0009] The bevels of the frame-shaped base are spaced apart so that they fit together when folded. When the feet are in the standing position, they are spaced further apart than the eccentric bearings, so that the weight of the grill exerts a torque on the eccentric, securely closing the end walls and connecting the long walls with a positive fit.

[0010] The base pan has a narrow upstand on all sides, and the long walls have sealing bevels on their narrow sides. These beveled edges, as well as the bevels on the end walls, serve to provide rigidity for the pan and form the basis of the entire construction.

[0011] When designing a barbecue, the bottom of the pan is conveniently covered with a grate, preferably hinged on one side, to ensure the embers are well ventilated. A grate also prevents the pan from deforming when lit. It can be easily cleaned afterward by pivoting it upwards. The upper areas of the longitudinal walls are conveniently provided with notches and / or holes for inserting and rotating skewers or the like. In an upgraded version, intermeshing gears are also arranged there, which have an edged holder for a skewer. All of the coupled gears can be rotated together, for which a crank and / or a motor drive is provided.

[0012] One figure shows a folding box, in particular a freestanding grill, in perspective in an oblique view. One end with the eccentric area is shown in an exploded view.

[0013] The base of the folding box or grill is the tub 4, which has an upstand 41 on all sides from the floor. Bearing pins 7 are inserted into the tub on the inner end faces, to which the longitudinal walls 6a, 6b are hinged in a foldable manner. These longitudinal walls carry stiffening ribs 9 on their short sides and have hooks 8 cut out at the ends of their free longitudinal edges, opening downwards. Furthermore, the grill version has notches (not shown) punched out for hanging skewers on one side and corresponding holes opposite to form skewer openings. In a special version, pivot bearings and intermeshing gears are arranged next to the holes so that they can be driven jointly with a crank or, if necessary, with a motor drive.

[0014] If a stand 5a, 5b is pivoted under the tub 4, the eccentrics lower the corresponding end wall 1a, 1b from the hook 8. In this free position, the longitudinal walls 6a, 6b can be folded one above the other over the tub floor 40 and, if necessary, over the grate, and the end walls 1a, 1b can be folded onto them. Preferably, the bearing pins 7 are designed as bolt-like hinge axes on the two longitudinal walls 6a, 6b, offset in height so that they can be pivoted down, if necessary, even onto a rotisserie assembly. The stands 5a, 5b are also fixed in the eccentrics and the spacing of their bevels A50 is dimensioned such that, when folded together, they are compacted around each other and the tub 4.

[0015] The figure shows a design of the eccentric, which is integrated into the folds of the bar or post 5a, 5b to such an extent that only its simple joints, into which hinge pins A2, A3 are inserted, are directly incorporated. The spatial position of the mutually eccentric joints in the compacted and unfolded states is shown in the figure. The folds A50 of the bar or post 5a, 5b are located close to the upstand 41 of the trough 4, and folds A10 of the end wall 1a cover the other fold A50, leaving a hinge hole through which a hinge pin A2 is passed, which is welded into the fold A50 or into the fold A10. By integrating the eccentrics into the bar or post 5a, 5b, numerous components and the associated assembly time are saved. List of reference symbols 1a, 1b end walls 4 tub 5a Stand 5b Stand 6a Longitudinal wall 6b Longitudinal wall 7 bearing bolts 8 hooks 9 Stiffening rib 40 tub floor 41 Upstand A2 hinge bolt A2a joint holes A3 hinge bolt A3a joint holes A10 bending A50 bending

Claims

Folding box, in particular a standing grill, consisting of a tub (4) with end and longitudinal walls (1a, 1b;6a, 6b) and stands (5a, 5b), which is compactable, characterized in that in a fold (A50) of the stand (5a, 5b) two spaced-apart joint bores (A2a, A3a) are provided to form spatially arranged eccentric joints, wherein a first joint has a joint pin (A3) which extends in the joint bore (A3a) of the fold (A50) of the stand (5a, 5b) and a joint bore of the longitudinal wall (6a, 6b), and wherein a second joint has a joint pin (A2) which extends in the joint bore of a fold (A10) of the end wall (1a, 1b) and the other joint bore (A2a) of the fold (A50) of the stand (5a, 5b), so that the end wall (1a, 1b) is pivoted into a standing position, whereby the end wall (1a, 1b) securely engages under hooks (8) formed at the ends of the upper edge of the longitudinal walls (6a, 6b), and the end wall (1a, 1b) is released in a foldable manner in an unlocking position; Folding box or stand grill according to claim 1, characterized in that it consists of lasered or punched bent parts, namely the tub (4), the end walls (1a, 1b), the longitudinal walls (6a, 6b) and the frame-shaped stands (5a, 5b), which each have at least two stabilizing and / or sealing bevels, raised edges and / or indentations and from which functional and / or weight-saving recesses are lasered or punched out and wherein raised edges (41) of the tub (4) carry bolt-like joint axes of the eccentrics and the longitudinal walls (6a, 6b). Folding box or standing grill according to claim 1 or 2, characterized in that the corresponding hinge axes of the two longitudinal walls (6a, 6b) are each at such a distance from the tub bottom (40) that they lie tightly one above the other when folded. Folding box or standing grill according to claim 2, characterized in that a grate (42) is pivotably hinged on one long side and supported on the other side on bearing bolts (7) which extend in the corner regions of the tub (4) over the tub bottom (40) thereof.

Citation Information

Patent Citations

  • Foldable grill

    DE202009017435U1