RU2190567C2 - Foldable box - Google Patents

Abstract

FIELD: packing containers. SUBSTANCE: invention can be used for storage and transportation of vegetables and fruit. Said box has bottom, two side and two end face walls hinge-coupled with bottom and longitudinal and cross flaps hinge-coupled with end face walls. According to invention, adjacent longitudinal and cross flaps and walls of box are connected by four cords passed through holes made in side walls and cross flaps. Each cord is secured in longitudinal flap, and its free ends, after fixing of corresponding corner, are fastened by knot. EFFECT: possibility of making foldable box without removable members and assembling it without tools, provision of sufficient strength and stability in stack. 3 cl, 2 dwg

Description

 The invention relates to containers and packaging, in particular to the design of folding boxes, and can be used for storage and transportation in a stacked form of fruits and vegetables and other products.

 Boxes having an unassembled flat shape, containing the bottom, side and end walls and means for fixing them in assembled form are well known [1].

 Known designs have disadvantages inherent in all drawers of this type. One of them is the unreliability of fixing the corners of the box due to the fact that during assembly of the box, the connection of its side and end walls adjacent to them is made at the contact points of the fixing elements, and not along the entire line of mating of the walls.

 Also known is a folding box formed from a flat workpiece, containing a bottom, articulated side and end walls that can be folded, a locking tongue placed on one wall with the possibility of passing through an opening formed in an adjacent wall and a locking wedge to press the tongue against the edge holes [2].

 This folding drawer has several disadvantages.

 Firstly, each of the four corners of the box has one fixing unit, which does not provide a reliable connection of the corners, and with an increase in the strength of the connected walls and the fixing units themselves, it leads to an unjustified consumption of materials and the mass of the box.

 Secondly, this design does not provide sufficient stability of the box in the stack and the convenience of stacking due to the low strength of the fixation nodes and the small size of the seating surfaces, making it difficult to quickly install one box on another.

 Thirdly, the removable locking wedges that are provided with all the fixation nodes of the above drawer may be lost during its operation, and their fastening to the walls using a strip of thin material leads to a higher cost of the structure.

 An object of the present invention is to provide an inexpensive thin-walled folding box design in which the corner joints of the mating elements are made not at points, but along the entire line of their connection.

 Another objective of the invention is the creation of such a folding box, which at low material consumption would have sufficient strength and stability in the stack.

 The third objective of the invention is the creation of a convenient folding drawer in operation without removable elements that does not require special tools and additional instructions when assembling it.

 The tasks are solved by the fact that in the folding box including the bottom, two side and two end walls are pivotally connected with it with the possibility of folding, according to the invention, each end wall is equipped with one longitudinal and two transverse valves pivotally connected to the end wall with the possibility of folding. The transverse valves and the adjacent edges of the side walls are provided with coaxial through holes. The locking elements are made in the form of four cords. Each of the cords with its middle is rigidly fixed at the edges of the longitudinal valves with the possibility of connecting with their help the mating ends of the longitudinal and transverse valves and transverse valves with the adjacent edges of the side walls. The free ends of each cord are made with a length sufficient to form a knot in the lower outer part of the box when they exit from the penultimate and last holes. Each transverse valve has at least one hole larger than the adjacent side wall edge.

 The invention is explained in detail on the examples of the box with reference to the accompanying drawings, in which figure 1 shows a schematic illustration of a box in an unfolded form; figure 2 - box, figure 1 in a perspective view.

 As can be seen from the drawings (see figures 1, 2), the inventive folding box contains a bottom 1, connected by means of flexible strips 2 with side walls 3 and end walls 4. To the end walls 4 by means of flexible strips 2 are connected one longitudinal valve 5 two transverse valves 6. side walls 3 are provided with openings 7, and longitudinal valves 6 are provided with openings 8 with the possibility of their coincidence during assembly of the box. An oval hole 9 is made in each end wall 4 for the convenience of gripping the box during its overload. On the edges of each longitudinal valve 5, the cord 10 is rigidly fixed in its middle part 11. After connecting the mutually perpendicular ends of the longitudinal valve 5 and the transverse valve 6, the two ends 12 of the cord 10 are “laced” through the coaxial holes 7, 8 and connected by a node 13 on the lower outer part drawer. Bottom 1, walls 3, 4 and valves 5, 6 can be made of several layers of wood veneer, corrugated cardboard, fiberboard, other suitable material, or a combination thereof. The flexible strip 2 can be articulated between the above drawer elements and can be fabric or other flexible material glued between veneer layers or glued to the mating drawer elements from the outside. In the case of manufacturing a box from corrugated cardboard, a flexible strip may serve as a bend line made directly on the workpiece material.

 The folding box according to the invention is simple in design, does not contain detachable elements that may be lost during operation, does not require additional materials and tools when assembling it, does not require large capital costs when organizing production.

 The box is easily disassembled and repaired, which allows its multiple use. The service life of the box is especially increased when wood veneer is used for its manufacture - an inexpensive, durable, environmentally friendly material.

 The above embodiment of a particular embodiment of the invention is not the only one possible. Various modifications and improvements are allowed without departing from the scope of the invention defined by the attached claims.

Sources of information
1. USSR author's certificate 499182, cl. B 65 D 5/00, 1971.

 2. Patent of the Russian Federation 2065388, cl. B 65 D 6/18, 1992.

Claims (3)

 1. A folding box comprising a bottom, two side and two end walls and means for securing the box in an assembled position, articulated with a possibility of folding, characterized in that each end wall is provided with one longitudinal and two transverse valves pivotally connected to the end wall with the possibility of folding, and the transverse valves and the adjacent edges of the side walls are provided with coaxial through holes, and the locking elements are made in the form of four cords, each of the cords with its middle rigidly it is fastened along the edges of the longitudinal valves with the possibility of connecting with them the mating ends of the longitudinal and transverse valves and transverse valves with the adjacent edges of the side walls.  2. The box according to claim 1, characterized in that the free ends of each cord are made with a length sufficient to form a node in the lower outer part of the box when they exit the penultimate and last holes.  3. The box according to claim 1, characterized in that each transverse valve has at least one hole more than the adjacent side wall edge.

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