CN111093437A

CN111093437A - Folding suitcase and the suitcase blank

Info

Publication number: CN111093437A
Application number: CN201880043653.4A
Authority: CN
Inventors: 谢尔盖·弗拉基米罗维奇·马洛奇金; 亚历山大·弗拉迪米洛维奇·班克特
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-20
Filing date: 2018-07-12
Publication date: 2020-05-01
Also published as: WO2019017821A1; RU2654677C1

Abstract

The foldable suitcase in the assembled state comprises a housing formed by opposite front walls (1), a rear wall (2), a first side wall (3) and an opposite second side wall (4) as well as a bottom wall (6) and an opposite upper wall (5). The edges of the edge wall (6) facing the bottom of the front wall (1) and the rear wall (2) are firmly connected towards them. The edge of the front wall (1) is connected to the edges facing them of the upper wall (5) and the side walls (3, 4) with a first zipper (15), and the edge of the rear wall (2) is connected to the edges of the upper wall (5) and the side walls (3, 4) with a second zipper (16). The front and rear walls (1, 2) are made with rounded corners (1a, 1b, 2a, 2b), and the side walls (3, 4) of the body have surface portions (3a, 3b, 4a, 4b) made to be bent in the rounded corner areas of the front wall (1) and the rear wall (2). The front wall (1), the rear wall (2) and the side walls (3, 4) can also be folded at least in part to ensure that the suitcase is placed on the lower wall in a folded state so that the upper wall (5) is in contact with the adjacent wall. At least a part of the side wall. The result is a compact and lightweight foldable bag in the folded state, ensuring easy storage for use.

Description

Folding suitcase and blank thereof

Technical Field

The present invention relates to luggage cases, and more particularly to luggage case construction and assembly accessory design.

Background

The suitcase is characterized in that the suitcase is composed of a shell and a cover and has a rectangular structure. The existing luggage case has a traditional three-dimensional box shape, handles, legs, wheels and a pull rod for the luggage case to roll. The box shell has several production methods: adopts plastic molding, connection of plane parts and a compounding method. The method of making the shell and the choice of materials used affect not only the method of making the case, but also the structure from which the model and product are made.

The variety of luggage cases has been expanded by producing luggage cases for various purposes, such as: short travel luggage, business trip luggage, extra light luggage, wheeled luggage, and the like. Luggage quality is determined by the nature of use (ease, capacity, ruggedness) and aesthetic characteristics (beautiful appearance, materials, accessories, fashion orientation, etc.).

The market of the current luggage cases is full of various luggage cases, but most of the luggage cases have a fundamental defect that the luggage cases occupy a plurality of places when being stored.

The folding suitcase shell of the WO2017032998 patent (release date: 3/2/2017) is designed to be deformed; the first is an expanded state, a space is arranged between the opposite side plates of the first group, and the inner space can store things; the second is a folded position in which the first pair of opposing side panels lie in a substantially flat plane to reduce the internal and external space of the case. The luggage case is designed to include a handle for hanging the folded luggage case.

The area of the case in the folded state is the sum of the areas of the two side panels (front cover side panel and bottom side panel), so that the case is reduced in one plane but enlarged in the other plane. The overall dimension of the folding plane is not reduced too much because the product is of a frame structure, and the frame structure occupies a certain space. It should be noted that the folding wheels and the hand held design of the product, but the telescopic trolley rails and the folding wheel compartment occupy the internal volume of the luggage case. The use of a large number of parts and materials (metal, plastic, cloth, accessories, etc.) makes the product difficult and expensive to manufacture, and also makes the product heavy (not originally light), thus reducing the product payload.

The folding luggage case of US7175010 (release date: 2/13 of 2007) consists of a lid and four vertical side panels connected to a bottom panel by means of movable joints. The product comprises a box type hard folding frame and a soft coat which can be zipped with a zipper, and the luggage case is fixed by a pocket cover with a magic tape in a folding state. The corners of the vertical side panels are flexible so that the vertical side panels can be folded toward the upper portion of the bottom panel when the case is desired to be stored. The flexible corner is made of soft cloth or soft material. The upper side plate is fixed on the folded vertical side plate. Each flexible corner structure has means for dividing it into two parts, such as a zipper.

The case of this construction is folded toward the largest side panel so that the size of the folded case, except for the depth, is the same as the size of the front (upper) cover (side panel). The disadvantage of this product is the right angle (sharp corner) of the luggage case, making the product inconvenient in practical use and creating an unattractive appearance. This luggage case has no wheels and no additional hand grips, which is another disadvantage.

The folding luggage case of US2016213110 (release date: 2016, 7, 28) consists of front and rear case side panels (front and rear covers) and four side panels. The side plate is provided with a foldable part, so that the side plate is folded towards the side plate facing the side plate and is covered with the rear cover. Relatively rigid composites are used in siding manufacture (e.g., polyethylene, polypropylene, polycarbonate, polyvinyl chloride, abs engineering plastics). The foldable parts of the side panels are made of soft material (such as cloth, gum, knitted cloth, rubber, leather).

Like the structure described above, the luggage case of this structure is folded toward the largest side panel. In addition, the structure is complicated and expensive to manufacture.

The above mentioned suitcases all have the disadvantage that the suitcase in the folded state is relatively large in size, because the side panels are folded towards the largest side panel.

The folding/disposable luggage case of the US8365886 (release date: 2/5/2013, and RU 2458610 patent) patent has an upper main panel, a lower main panel, and a plurality of side panels made by folding at least one blank drawn in lines. The luggage case has at least one planar blank having a plurality of apertures, and at least one elongated panel and an inset panel. The inset panel has wheels that engage the panel apertures. The inset panel is positioned between the elongated panel and the apertured panel such that folding the planar blank forms a wheeled luggage case.

Although several such cases can be stacked after folding, they take up a large amount of space. The area of the case in the folded state is equal to the area of the two panels (front main panel and side panels), although the case is made of a sheet material (flat material), and occupies a relatively large space when stored. The product contains a large number of individual detachable members that can cause difficulties during assembly, disassembly and storage. The right angle (sharp corner) of the case makes the product inconvenient in practical use and creates an unattractive appearance.

Therefore, there is a need to solve the problems associated with creating a folding luggage case.

Disclosure of Invention

The present invention is directed to eliminating the above-mentioned problems and overcoming one or more of the disadvantages of folding luggage cases considered above.

The invention aims to create a folding luggage case which can be folded tightly, occupies the minimum space when being stored, is easy to assemble, is convenient, practical and practical.

Another object of the invention is to create a folding suitcase of simple construction, with a minimum number of parts to be made. The production of such a product is simple and cheap.

A third object is to reduce the weight of the luggage case while maintaining its internal volume.

In addition, there is a fourth object to expand the variety of the folding luggage.

These objects can be solved by the design of the folding luggage case structure as follows: the assembled luggage case has a front panel and an opposing rear panel, a first side panel and an opposing second side panel, and a lower panel and an opposing upper panel; the edges of the lower plates of the front panel and the rear panel are connected with the lower plate; in addition, the edge of the front panel is connected with the edge of the upper plate and the side plate by a first zipper, and the edge of the rear panel is connected with the edge of the upper plate and the side plate by a second zipper; the front panel and the rear panel are called as round, and the side plate is bent at the round angle part of the front panel and the rear panel; the back and side panels or their components have a folding function that folds them or places them on the lower panel of the case to fold the case; when folded, the upper panel is adjacent to the next side panel (at least one side panel).

The folding function provided by the zigzag parts of the front panel and the rear panel is reasonable, so that the zigzag parts at least need to be bent by the front panel and the rear panel to be folded into at least three folds; the side plate needs to be folded into at least two folds at the bent position of the side plate; the number of folds of the side panels (at least a portion of the side panels) should be divided by 2.

It is desirable that the possibility of bending of the front and rear side plates is designed by the lower plate margin height calculation.

Furthermore, the front and back panel inflection heights may not be consistent with the side panel inflection (as counted from the lower panel).

The luggage case can be made of the following materials: cardboard, corrugated board, polypropylene, honeycomb polypropylene; the bent part of the side plate, namely the part of the side plate close to the round corners of the front panel and the rear panel, needs to be cut or made of soft materials.

Preferably, the luggage case is made of a thermoplastic material, such as ethylene vinyl acetate. This allows the front and back to be made with a serpentine edge.

The distance between the meanders of the front panel may not be the same as the distance between the meanders of the rear panel.

The object we propose can be solved by a blank designed as follows: the blank has at least two components; the first section has front and rear panels that are merged with a fold line with a lower panel between the front and rear panels. The second component has an upper panel and side panels merged with fold lines, the upper panel being between the side panels, each side panel being connected to an additional lower panel. The front and rear panels require at least two fold lines for folding at least a portion of the front panel and at least a portion of the rear panel at least three; each side panel is provided with at least one folding line for folding the side panel into at least two folds; the fold lines used to fold the panels need to run parallel to the fold lines connecting the front and rear panels and the lower panel; the side panel has a flexible place for folding at least a part of the folding line of the side panel (at least three-folding) to pass in parallel with the folding line connecting the side panel and the upper panel; the corners of the front and rear panels should be rounded.

The folding lines of the blank thus require at least three folds of at least the front and rear panel portions and at least two folds of each side panel, the thickness of these folding lines being different.

It is possible that at least a portion of the blank is made entirely of one piece of material.

The distance between the fold lines of the blank may be non-uniform.

The first component of the blank may have two separate vertically depending fold lines along the upper panel, the fold lines also passing through at least a portion of the front and rear panels; thus the extent of the first component of the blank, along its length, should be variable.

Suitable blank designs include: the first and second components of the blank should be made from a thermoplastic material, such as ethylene vinyl acetate; the edge portions of the front and rear faces should have a meandering edge.

Other features of the blank and the folding luggage will be described in more detail in the detailed description of the implementation.

Drawings

Examples of the inventive concept will be described in more detail below with reference to the accompanying drawings, in which reference numerals are given below:

FIG. 1 is a perspective view of a first embodiment of the luggage case in an assembled state, with FIG. 1A depicting the case from a front panel and a first side panel, with the upper panel being above; FIG. 1B illustrates the case from a rear panel and a first side panel, with the lower panel on top.

Figure 2 is a perspective view of the case of figure 1 with the zippers of the front and rear panels opened.

Figure 3 is a blank of the luggage case described in figure 1.

FIG. 4 is a perspective view of a second embodiment of the luggage case in an assembled state, with FIG. 4A illustrating the luggage case from a front panel perspective, with the upper panel on top; figure 4B illustrates the case from a rear panel angle, with the lower panel on top.

Figure 5 is a perspective view of the case of figure 4 with the zippers of the front and rear panels opened.

Figure 6 is a blank of the luggage case illustrated in figures 4-5.

FIG. 7 is a perspective view of an alternative design of the second embodiment of the case in an assembled state, with FIG. 7A illustrating the case from the perspective of the front panel, with the upper panel on top; figure 7B illustrates the case from a rear panel angle, with the lower panel on top.

Figure 8 is a perspective view of the case of figure 7 with the zippers of the front and rear panels opened.

Fig. 9 is a blank of the luggage case illustrated in fig. 7-8.

FIG. 10 is a drawing of a luggage case with a detachable cart-platform and retractable drawbar, FIG. 10A illustrates the case from the rear panel angle, with the retractable drawbar pulled down; fig. 10B illustrates the case from the front panel, with the telescoping pull rod pulled up.

FIG. 11 is a perspective view of a third embodiment of the luggage case in an assembled state, with FIG. 11A illustrating the luggage case from the perspective of the front panel, with the upper panel on top; figure 11B illustrates the case from a rear panel angle, with the lower panel on top.

Figure 12 is a perspective view of the case illustrated in figure 11 with the zippers of the front and rear panels unzipped.

Figure 13 shows a wheeled platform cart in combination with a lower plate.

Fig. 14 is a blank of the luggage case illustrated in fig. 11-12.

Figures 15-19 illustrate the process of folding the case.

Figure 20 shows a luggage case with removable internal partitions.

FIG. 21 shows a luggage case with two carrying handles; FIG. 21A illustrates the luggage case from the corner of the side panel with the first handle; figure 21B illustrates the case from the opposite side panel with the second handle.

Figure 22 shows a luggage case with a special rolling handle for rolling the luggage case.

Figure 23 shows the folded case in a hung position.

FIG. 24 shows a luggage case with increased side panel stiffness.

Detailed Description

The embodiments of the invention described below are examples of what applicants have recognized as the best currently possible practice of the invention. These examples are not the only ways to implement the invention. The following detailed description of the embodiments of the invention is provided by way of example.

The structural members used in a consistent manner are located in the same position in each embodiment shown in the drawings.

In fig. 1 and 2, the shell of a folding luggage case (hereinafter referred to as a luggage case) is provided with a front panel 1 as a cover, an opposite rear panel 2, a first side panel 3, an opposite second side panel 4, an upper panel 5 and an opposite lower panel 6.

In fig. 1 and 2, the edge of the front panel 1 facing the lower surface 6 is fixedly joined to the lower panel at a fold line 7, and the edge of the rear panel 2 facing the lower surface 6 is fixedly joined to the lower panel at a fold line 8

The corners of the edges of the front panel 1 are rounded, the rounded corners at the upper panel 5 being indicated by the 1a standard; the rounded corners at the lower panel 6 are indicated by the 1b standard. The edge corners of the rear panel 2 are also rounded, the rounded corners at the upper panel 5 being indicated by the 2a standard; the rounded corners at the lower panel 6 are indicated by the 2b standard.

The surface of the first side plate 3 of the cabinet is provided with a zigzag part 3b at the upper panel 5 side; the edge of this meander approaches the fillet 1a from the front panel 1 side; the edge of this meander approaches the fillet 2a from the rear panel 2 side.

The second side plate 4 also has the same meanders. The surface of the first side panel 4 of the cabinet has a meander 4a at the side of the upper panel 5; when the case is folded, the edge of this meander approaches the fillet 1a from the front panel 1 side; when the case is folded, the edge of this meander approaches the fillet 2a, as seen from the rear panel 2; when the case is folded, it is located in a meander 4b of the part-panel 6, the edge of which meander 4b approaches the fillet 1a from the front panel 1 side and the fillet 2a from the rear panel side.

The front panel 1 has two parallel zigzag lines to make it folded into three, there is a distance between two zigzag lines, and the zigzag lines pass from a side plate of the box shell to two outer grid side plates. The meander line at the upper panel 5 is indicated with 9. The meander line at the lower panel 6 is indicated with 10.

The back panel 2 also has two parallel zigzag lines to make it folded into three, there is a distance between two zigzag lines, and the zigzag lines pass from a side plate of the box shell to two outer grid side plates. The meander line at the upper panel 5 is indicated with 11. The meander line at the lower panel 6 is indicated with 12.

Each side panel has a zigzag line which allows it to be folded in two, the zigzag line passing from the front panel 1 to the rear panel. The meander line of the first side panel 3 is indicated with 13 and the meander line of the second side panel 4 is indicated with 14 (fig. 2).

If the height of the luggage structural member is calculated from the lower panel to the upper panel, the zigzag lines of the

side panels

3 and 4 are between the front

panel zigzag lines

9 and 10, and also between the rear

panel zigzag lines

11 and 12. The front and

rear panels

1, 2 have different panel zigzag line positions from the side panel zigzag lines so that the product can maintain its shape in the assembled state.

The edges of the front panel 1 (fig. 1A) are connected to their

side panel

3, 4 edges and the upper panel 5 edge by a first zipper 15; the edges of the back panel 2 are attached to their

side panel

3, 4 edges and the upper panel 5 edges by a second zipper 16.

When the case is in the assembled state, the slider of the second zipper 16 may be positioned within the case such that the slider restricts access from the outside.

The first zipper may have a slider, but preferably has two tabs to allow the zipper to be pulled in two directions from the lower panel 6 to the upper panel 5. In an alternative embodiment design, both zippers may have two sliders.

The 15 and 1 zippers may be made of any suitable type, for example in the form of a spring/coil zipper, a nylon zipper, a molded plastic zipper, a zipper with molded teeth. The type of zipper depends on the size and material of the case.

The lower panel may be provided with legs 17 (indicated by a position) to provide added stability to the luggage case and to protect the luggage case from wear. By means of the legs, the two main parts of the luggage case blank can be connected, so that a unified case shell is formed. In alternative embodiments, wheels (fixed, collapsible or removable) or fasteners of a removable cart may be substituted for the legs.

The upper panel 5 has a handle 18. The handle 18 is a piece of cloth secured in two places with seams or rivets. The handle has a free end 18 a. The free end 18a of one of the pieces of cloth 18 is provided with a fastening means, namely a hook and loop fastener or a snap fastener for fastening the free end to a tab fastening means at the upper part of the side panel.

The flexible handle 18 is made of a piece of cloth or a sling and is compact and plays an important role in reducing the weight of the suitcase.

The zigzag part is a radial zigzag section which forms a side plate of the assembled luggage case and forms a zigzag line of the side plate in the folding process.

The folding or bending lines may be provided in the form of grooves, perforations, folds, etc.

The smoothest bend should be formed when the frequency on the domain notch-fold at the side panel meander is bent.

When the luggage case is folded, the bent part is unfolded to form the upper panel of the home, so that the folded front and rear panels can be placed in the folded luggage case.

The radius of curvature at the side panel meanders is selected according to the conditions that ensure proper operation of the zipper and must be of a minimum size to maintain the internal volume of the product in the assembled state.

The radius of curvature also depends on the thickness of the front and rear panels (the material from which the front and rear panels are made and the thickness of the coating and/or lining material (if used).

The folding luggage of the first embodiment is made from a blank consisting of two linked parts, fig. 3. The first portion 19 of the blank has front and

rear panels

1, 2 joined to the lower panel and joined by 7 and 8 meander lines. The front panel 1 and the rear panel 2 are of uniform width, the width of the front and rear panels exceeding the width of the lower panel 6 measured in the same direction.

The front panel has two

parallel meander lines

9 and 10 with a distance between them, which have the function of folding the panel.

The rear panel has two

parallel meander lines

11 and 12 spaced apart and serving as folding panels.

The width of the front panel 1 and the rear panel 2 exceeds the width of the lower panel 6 by an amount equal to the radius of the two rounded corners.

The width of the front and

rear panels

1, 2, and the depth of the lower panel 6 may be selected according to airline carry-on luggage size standards, and the product size may be scaled up if necessary to increase the product size to luggage size.

The front panel 1, rear panel 2 and lower panel of the first portion 19 of the blank are fixedly interconnected by two

meander lines

7 and 8.

The second portion 20 of the blank has a first side panel 3 and a second side panel 4 linked by an upper panel 5, each side panel being connected to a portion (flap) of an additional lower panel 21. The first side panel 3 and the second side panel 4 are each formed with a

meander line

13 and 14.

The edge 22 of the first side panel 3 (the meander line 22) is rigidly joined to the first portion 21a of the additional lower panel 22 and the edge 23 of the second side panel 4 (the meander line 23) is rigidly joined to the first portion 21b of the additional lower panel 22. The upper panel meander line 25 is rigidly joined to the side panel meander line 4a of the side panel 4.

The meander lines 24, 25 separating the upper panel 5 from the corresponding first and

second side panels

3, 4 allow the first and

second side panels

3, 4 to meander.

The lengths of the

parts

21a and 21b should be the same from their edges to the equivalent length of the 22, 23 meander line, each part corresponding to half the length of the lower panel measured in the same direction. In an alternative embodiment, the length of the

portion

21a, 21b may be shorter than the lower panel length.

In this embodiment, the additional lower panel 21 is narrower along the length of the lower panel than the lower panel by a measure equal to the width of both zipper halves.

The second portion of the luggage case blank of figures 1-3 has a rectangular profile, i.e. the portion of the length of the upper panel 5, the 3a and 3a zigzag lines of the first side panel 3, the 4a and 4b zigzag lines of the second side panel 4, and the additional lower panel 21, all along the length of the second portion 20 of the blank.

The blank second portion 20 comprises: the upper panel 5, the first side panel 3, the second side panel 4, the first part 21a of the additional lower panel 21, and the second part 21b of the additional lower panel 21 are rigidly joined at a zigzag line portion separating them.

The lower panel 6 of the first portion 19 of the blank, the first portion 21a of the additional lower panel 21, and the second portion 21b of the additional lower panel 21 all have holes marked with a 17 a mark for fixing the joined

blank portions

19, 20 with legs or rivets or wheels or fasteners of a removable trolley.

When producing the luggage case, each part of the blank is first bent according to the zigzag lines separating the panels and the parts thereof. The first and

second portions

19, 20 of the blank are then turned to a condition in which they are perpendicular to each other. The second part 20 is then placed inside the first part 19, the

parts

21a and 21b of the second part 20, which parts are attached to the lower panel 21, are placed on the lower panel 19 of the second part 20 and rigidly connected, using legs or rivets or wheels or fasteners of a detachable trolley.

The

meander lines

7 and 8 connecting the front and rear panels and the lower panel have the effect of making the front and rear panels meander towards the lower panel.

The 7 and 8 meander lines of the pair of first portions 19 are designed to compensate for the thickness of the material in which the second portion 20 is embedded and allow the zipper to be pulled up and down normally and the front and

rear panels

1 and 2 to be easily placed inside the case. The 24, 25 meander lines separating the upper panel 5 and the side panels require the additional lower panel to be folded towards the adjacent side panels when folding the case.

Depending on the type of material used and its thickness, the bending lines providing the bending function can be made double, like 7 and 8 meander lines. This folding function may be provided by a large number of adjacent meander lines, or by wider meander lines.

The interconnected lower panel 6 and the additional lower panel 21 constitute a bottom surface of the reinforced two-layer bottom in the case that they match in length.

The first portion 19 and the second portion 20 of the blank are joined by

zippers

15 and 16 when formed into the luggage case shape.

Figure 4 in a second embodiment, which is shown in figure 6, unlike the first embodiment, the front panel has two additional

parallel meander lines

26 and 27 spaced apart across the front panel from the lower panel 6 to the front panel edge of the upper panel 5. The rear panel 2 also has two spaced parallel

additional meander lines

28 and 29 passing through the rear panel from the rear close to the edge of the lower panel 6 to the edge of the upper panel 5.

Additional zigzag lines 26-29 form the reinforcement of the front and rear panels. These lines add to the overall rigidity of the product when the case is assembled and make the product more comfortable and aesthetically pleasing by forming smooth right angles to the side slopes.

The second portion 20 (fig. 6) of the blank of this embodiment has a width of the first portion 19 of the blank. The part of the side panel 3 between the 3a and 3-meanders has a narrower width than the parts 21a of the upper panel 5 and the additional lower panel 21.

The 3a and 3-b-meanders are smoothly curved towards the outer edge, but the outer-facing edge of the side panel 3 is straight between the 3a and 3-b-meanders. The width of the side panel 4 at the 3a and 3-meanders is narrower than the width of the upper panel 5 and lower panel 21 portions. The 4a and 4-meanders are smoothly curved towards the outer edge, but the outer edge of the side panel 4 is straight between the 4a and 4-meanders.

This variable width shape of the blank second portion 20 allows the side wash corner portions 30, side wash corner panels, that make up the luggage case, to be more rigid in the assembled state of the overall product.

The width of the side wash corner 30 is selected so that it is commensurate with the radius of the front and rear panel corner radii. In one aspect, the slope of the side ramps 30 should be optimized so as not to significantly reduce the internal volume of the product. Viewed from another aspect, the slope of the side bevel 30 should be sufficient to form a stiffener.

In an alternative second embodiment of fig. 7-8, the additional vertical meander lines 26, 27 (labeled the same location) of the front panel 1 forming the stiffener are curved to face each other where they project and traverse the front panel portion from the rounded corner 1a to the opposite rounded corner 1 b. In this embodiment the

additional meander lines

28, 29 of the back panel are designed like the meander lines 26, 27 as described above.

In an alternative second embodiment, the first portion 19 of the blank of figure 9 is located at the additional zigzag line of the front and rear panels, the rounded corners of the front and rear panels being curved and projecting outwardly therefrom.

In a second embodiment, the width of the side panels of the second portion 20 of the blank of figure 9 is variable, in which case the meanders of the outward edges are straight and the edges between the meanders of the queen edges are curved to point towards each other where they project.

In an alternative second embodiment (not shown), the additional vertical meander line shape may be different from this second embodiment, and the product design will be modified according to geometrical changes corresponding to the new shape.

In each embodiment, the blank first portion 19 and the lower panel 6 may be formed as a single piece of material as a whole.

In each embodiment, the upper panel 5, the first side panel 3, the second side panel 4, the first portion 21a of the additional lower panel 21, and the second portion 21b of the additional lower panel 21 may be integrated.

Each portion of the blank may be carved out of the board (cardboard, corrugated board, single sheet or honeycomb polypropylene, etc.) on a perforated zigzag line. Portions of the blank may also be made by casting or thermoforming plastic.

The two parts of the blank and/or their constituent members (panels and their parts) may be made of one material or of different materials. For example, where the side curve forming the radius is curved, resilient materials (rubber, polyurethane) may be used in addition to the usual perforations

To reinforce the luggage case, the upper panel 5 and/or the

side panels

3, 4 may be reinforced by making them double-layered. In the case of side panels made of corrugated cardboard or cellular polypropylene, the material layer may be rather transverse.

The folding luggage case of fig. 10 may be provided with a telescopic pull rod 31 and a trolley-flat cart 32 with two wheels 33. When the detachable cart 32 is used, its flat plate is joined to the lower panel 6. The telescoping members by which the pull rods 31 can be pulled apart are located at the side wash corner 30 of the back panel 2 beyond the size of the product. The telescopic members, which can be pulled apart by the pull rods 31 in the lower part of the cabinet, are fixed to a trolley-flat cart 32. The retractable member which can be pulled open by the pull rod 31 on the upper part of the case shell is fixed on the side washing corner 30 through a slipknot 34 and is combined by the leech nails 35 of the pull rod 31. In alternative embodiments, cart-flat cart 32 may have four wheels or may be removable.

In the third embodiment shown in fig. 11 and 12, the front panel 1, the rear panel 2 and the side surfaces 3 and 4 are not folded in their entirety, unlike the first embodiment, and only a part of them is folded.

The front panel 1, the rear panel 2 and the side faces 3, 4 thus have additional transverse meander lines, which are indicated by the

reference numerals

36, 37, 38 and 39. They are at a distance from the lower panel 6 in order to ensure the panel folding function and to ensure that the folded panel has a designated space with it. With the surface of the height limiting panel being created with a space with the lower panel 6, a space is formed in the folded state of the suitcase. At least the folded front and rear panels can be placed in that space.

The

additional meander lines

36, 37, 38, 39 may be at different distances from the lower panel, determined according to the type of cart-flatbed connected to the lower panel, using materials and/or pulleys.

In this embodiment, the luggage case may be provided without the cart-platform 32, or the cart-platform 32 may have wheels 33 projecting generally outwardly similar to those shown in FIG. 10. in this case, only one panel, a folded front panel or a folded rear panel, may be received in the space between the front and rear panels; the designated spaces are determined by the thickness of the material used.

In an alternative second embodiment, the panel 40 of FIG. 13 may be attached to the lower panel of the case. The plate 40 may have a flange 41 or a flange 42 for holding the front and rear panel portions adjacent to the flange. Plate 40 may have wheels 43 and legs 44. The wheels 43 are secured in such a manner that they project downwardly and also project forwardly beyond the collar 42, and they may also project beyond the collar 42 in an opposite direction.

In order to guarantee the folding tightness, the height of the convex edge is selected according to the following conditions: the flange 41 near the front panel 1 should be lower than the flange 42 near the rear panel so that the flange 41 is at the level of the meander line 36 and the folding of the front panel 1 starts from the folding of the meander line 36. Rather, the height of the flange 42 is equal to the height of the designated blank, at the level of the zigzag line 37, and the folding of the rear panel 2 starts from the folding of the zigzag line 37.

The legs (the latter legs) are positioned between the wheels so that when several cases are stacked and stacked, they are turned towards each other with the legs between the wheels, thereby reducing the height of the stack of cases.

When the plate 40 is secured to the lower panel of the case, the portion of the wheel 43 that extends beyond the collar 42 rests on a member 45 located within the case, specifically a member for storing the wheel portion (fig. 12).

In this case, the storage space of at least the front and rear panels may be provided with a member 45 for storing a portion of the wheel 43. The size of the designated space from the lower panel is selected according to the size of the wheel.

In the third embodiment of figures 11 and 12, the case is made by molding a thermoplastic material of the vinyl acetate type. An allergy-free, flexible, easily moldable, easily reconstitutable, relatively inexpensive ethylene/vinyl acetate copolymer (Eva foam) can be used as the thermoplastic material.

The edges of the front and

rear panels

1, 2 are shaped from three sides (where the zipper is sewn) with an edge 46. the edge 46 is formed in one way and marked with a logo 46. the edge 46 faces the edge of the opposite panel.

In the third embodiment, if the luggage case blank is made of cardboard, corrugated cardboard, single sheet or cellular polypropylene, the design is different from the blank of the first embodiment. The blank panel requires additional zigzag lines across it. In order to ensure that the panels are folded with a designated space, the additional meander line is spaced from the lower panel.

In this case, if the plate 40 with wheels 43 is fixedly combined with the rear panel (the wheel portion is buried inside the trunk) on the front panel 1, holes for installing members 45 (not shown) for storing a part of the wheels are necessary on the transverse curved line 36 separating the front panel 1 and the rear panel.

In a third embodiment, if the case is made by moulding of thermoplastic material (figure 14), the first and second portions of the blank will be formed three-dimensional, due to the fact that the blank has been formed with front and rear panel edges 46 which meander at an almost right angle, and due to the fact that the portions (3a,4a,3b,4b) of the side panels meander radially.

If, in the embodiment, the plate 40 with the wheels 43 (of the wheel part placed deep in the cabinet) is fixed to the lower panel, the first part 19 of the blank may be formed with a member 45 for storing a part of the wheels.

In this case, a preferred embodiment of the product will be given. The embodiments described above all fold the product by folding the panels at their folds, at least the front and rear panels in three folds and at least the side panels in two folds.

However, this design is not limited to these embodiments and encompasses many other embodiments, such as adding panel meander lines to fold the panels more times. In this case, there is a necessary condition that the number of folds of the side panel is divided by two.

The width of the meander lines providing the folding function of at least a portion of the front and rear panels and the side panels are determined by the thickness of the material they create, as well as by stacking, such as stacking ("accordion" method), and looping the meander lines (i.e., how to wrap in one direction at the meander). When stacking, the meander lines need to be evenly organized. When the ring zigzag lines are rotated, the zigzag lines cannot be uniformly arranged, and the thickness of the zigzag lines is different; the wider the stack is, the more turns, the more different the thickness of the meander.

The fold lines may be stacked in any orientation to facilitate the stacking process, e.g., the stacking face of the stack may act as a lid.

The zipper is sewn in by machine. In alternative embodiments of the zipper, the zipper may be brazed or adhesively bonded, depending on the materials used.

The width of the product depends on the prevailing requirements (e.g. 18-22 cm for the width of the box). The ratio of the length (height) of the front panel to the width of the product cannot be less than 3:1 (50-55 cm on the chassis), so that the total width of the product is not exceeded when the suitcase is folded into three. When larger size products (e.g., luggage cases) are manufactured, the ratio remains.

In a first second embodiment, the folding of the luggage case is performed as follows:

the

zippers

15, 16 are first fully unzipped and the front 1 and rear 2 panels are placed in the position depicted in figure 5 or figure 8. The front panel is then tri-folded at 9 and 10 fold lines and placed on the lower panel 6 (fig. 15). The back panel is then tri-folded at 11 and 12 fold lines and placed over the already folded front panel.

The rear panel may be folded over and placed on its lower panel, and then the front door panel may be folded over and placed on the already folded rear panel.

There are two methods of stacking panels, the accordion method and the "wrap" method, which is to wrap around portions of the panels that are separated by a zigzag line.

It is then necessary to fold the

side panels

3 and 4 in the

zigzag lines

13 and 4 towards the opposite side panel and then place them on the already folded front and

rear panels

1, 2. The upper panel 5 releases the portions of the

side plates

3 and 4 that are close to each other (fig. 17).

Due to the size of the case and the height of the folded

side panels

3, 4, the upper panel 5 may only release a portion of one of the side panels that is close.

To secure the folded case, the free end 18a of a piece of cloth 18 is secured by a securing element at the lower panel fold.

In a third embodiment, the case folding begins with the addition of a zig-zag fold, and the front and rear panels need to be placed in the storage space where at least the front and rear panels can be stored (fig. 18). The

side panels

3, 4 then need to be folded over at the meander lines 13, 14 towards the opposite side panels and placed on the already folded front and

back panels

1, 2.

In the embodiment in which the wheeled plate and the lower panel are combined (the wheels being placed partly deep in the cabinet), the folding of the panels starts from the front panel 1. It is first folded in a zigzag line and the stack formed by the front panel cannot be released from the wheels, see fig. 19.

In this case, the folding of the front and rear panels is preferably performed by folding about a zigzag line adapted to fold the panels.

The assembly of the luggage case is performed in the reverse order.

The luggage case may have one (as shown in figure 20) or several removable internal partitions 47 in each embodiment.

The removable internal partition 47 provides for sorting the luggage compartment space by use and increases its rigidity. This function is important in the case of increasing the size of the luggage case to a consignment luggage case. The detachable inner partition 47 is combined with the inside of the side panel by a hook and loop fastener of the flap or a snap fastener.

In an alternative embodiment (fig. 21), the luggage can be provided with an additional handle 48 located on the first side panel 3. In this case, the opposite second side plate is provided with an attachment leg. The luggage case has only one handle if the size of the luggage case meets the size requirement of the boarding box (40 x 50 x 20 cm).

In another alternative embodiment (fig. 22), the handle 18 on the upper panel 5 passes over the leech nails 49 on the upper panel. This design allows the handle to be elongated by simply disengaging the handle end from the retainer 50. Embodiments of such a handle are multifunctional. If the lower panel of the case has wheels, the case can be rolled with an elongated handle.

If the luggage case needs to be folded and stored, the cloth handle with the free end is designed to have the redundant advantage that the free end can be used as a means for keeping the assembled luggage case. Thus, when the suitcase is folded for storage, it is less likely to be lost.

In an alternative embodiment (fig. 11A), the second handle 48 may be formed by securing the free end 18a of one of the piece goods-lifting cords 18 with the fastener 18 b.

A cloth-sling 1 handle design provides for hanging a storage case, such as by hanging the case from a hanger, as shown in fig. 23.

In order to reinforce the rigidity of the luggage case, the side panels thereof may be provided with rigidity-reinforcing members. The design of the elements of the reinforcing side plates may be similar to the elements of fig. 24. So that the sides should be double-layered. The inner layer of the side plate should have a bent portion 53. The outer leg 54 of the folded portion begins at the side panel meander line and passes upwardly. The outer envelope 54 of the folded portion 53 of the case in the folded condition is scored into the side panel and secured to the inner layer of the opposite side panel. When the luggage case is folded, the zigzag line formed on the outer layer is located at the bent portion of the inner layer. The component of reinforcing curb plate uses the function that increases the suitcase and preapres for an unfavorable turn of events shape.

If the case is made using an ethylene/vinyl acetate copolymer (Eva foam) material using a pre-forming process, the product acquires some of the extra attributes and functionality. Due to the double curvature surface, the end product has increased rigidity, which better maintains its shape in the assembled (folded) state. Due to the smooth shape, the product obtains a more attractive appearance and provides the surface with the function of embossing, volume texture and pictures. When the suitcase is made by a preforming method, recesses can be formed on the surface of the blank, in which the wheels, accessories (rings, fasteners, carabiners, locks, handholds, legs) can be stored. This avoids them exceeding the product size. Furthermore, when the product is formed, the product can be given a more tetragonal shape without strongly protruding members, so that a new function of making it easier to store and stack the product appears in the folded state.

In order to increase the durability and attractiveness of the product, it may be coated, in whole or in part, with cloth, leather or other finishing material on the outside and with lining material on the inside and outside of the product.

The side plates can be rolled with soft profiles, or high quality fittings (rivets, legs, wheels, handles, leech nails, locks, treadmills, built-in combination locks) can be used with additional pockets.

Industrial applicability

This luggage case has the following advantages over known designs: compactness (10: 1 ratio of assembled and folded products), light weight (due to the use of durable and lightweight materials such as cellular polypropylene, etc.), low production cost (due to simple design and small number of components), the possibility of using environmentally friendly materials, and their possibility of recycling.

Claims

1. Folding luggage is characterized in that: the luggage in the assembled state has a front panel and an opposite rear panel, a first side panel and an opposite second side panel, and a lower panel and an opposite upper panel; The edge of the lower panel is connected with the lower panel; in addition, the edge of the front panel is connected with the edge of the upper panel and the side panel with a first zipper, and the edge of the rear panel is connected with the edge of the upper panel and the side panel with a second zipper; The front and rear panels are called round, and the side panels are zigzag at the rounded part of the front and rear panels; the rear panel and the side panels or their components have a zigzag function, zigzag them or put them on the lower panel of the trunk to fold the trunk; fold When the upper plate is close to the abutting side plate, at least one side plate is close.

2. The foldable luggage case according to claim 1, characterized in that the zigzag lines of the front and rear panels allow at least a part of the front and rear panels to be folded into at least three folds; At least part of the side panel) should be folded into a number that should be divided by 2.

3. The foldable luggage case according to claim 1, 2, characterized in that, the possibility of bending of the front and rear side panels is designed by calculating the height of the margin of the lower panel.

4. The foldable luggage case according to claim 1, wherein the height of the front and rear panel bends can be inconsistent with the side panel bends (calculated from the lower panel).

5 . The foldable luggage case according to claim 1 , wherein the front and rear panels have vertical additional zigzag lines passing through from the lower panel to the upper panel, and when the luggage case is assembled, they have the function of forming reinforcing ribs. 6 .

6. The foldable luggage case according to claim 1, characterized in that, it is made of the following materials: cardboard, corrugated cardboard, polypropylene, honeycomb polypropylene; the zigzag part of the side panel is the part where the side panel is close to the rounded corners of the front and rear panels , requires a lot of chopping or crafting with soft materials.

7. The foldable luggage case of claim 6, wherein at least a portion of the panels are at least double-layered.

8. A foldable luggage case according to claim 1, characterized in that it is formed by molding a thermoplastic material of the vinyl acetate type.

9. The foldable luggage case of claim 1, wherein the front and rear edge portions should have curved edges.

10. The foldable luggage case according to claim 1, characterized in that there is at least one zipper with two zipper pullers for zipping the zipper from two directions.

11. The foldable luggage case according to claim 1, characterized in that, in the assembled state, the zipper head of the second zipper 16 can be located in the case, so that the zipper head restricts access from the outside.

12. The foldable luggage case according to claim 1, wherein the distance between the zigzag line of the front panel and the zigzag line of the rear panel is different.

13. The foldable luggage case according to claim 1, characterized in that the handle is fixed on the panel and has a free end-to-end cloth design handle.

14. The foldable luggage case of claim 1, wherein there is at least one removable partition.

15. A foldable luggage case according to claim 1, characterised in that there is an additional trolley-flat or flat with at least two wheels; the trolley-flat or flat with at least two wheels can be fixed on the lower panel .

16. Luggage blank, characterized in that it has at least two components; the first has front and rear panels merged with fold lines, with a lower panel between the front and rear panels; and the second component has an upper part merged with fold lines Panels and side panels, the upper panel is between the side panels, each side panel is connected to an additional lower panel; the front and rear panels need to have at least two fold lines to fold at least a portion of the front panel and at least a portion of the rear panel into at least three fold; each side panel has at least one fold line for folding the side panel into at least two folds; the fold line used to fold the panel needs to pass parallel to the fold line connecting the front and rear panels and the lower panel; the side panel has Where zigzag is possible, the fold lines used to fold into at least a portion of the side panels (to make at least three folds) need to pass parallel to the fold lines connecting the side and upper panels; the corners of the front and rear panels should be rounded.

17. The luggage case blank according to claim 16, wherein the folding lines are required to fold at least the front and rear panels into at least three folds, and each side panel into at least two folds, and these fold lines have different thicknesses.

18. The luggage case blank of claim 16, wherein at least a portion is formed entirely from one piece of material.

19. The trunk-like blank of claim 16, wherein the distances between the meander lines are different.

20. The luggage case blank of claim 16, wherein there are two separate vertical additional fold lines along the upper panel, the fold lines also passing through at least a portion of the front and rear panels; The breadth of a component, along its length, should be variable.

21. The luggage case blank of claim 16, wherein the vertical additional meander lines are straight or smoothly curved.

22. The luggage case blank of claim 16, wherein it is fabricated from a thermoplastic material, such as ethylene vinyl acetate, such that the portion formed by this method is three-dimensional.

23. The trunk blank of claim 16, wherein the front and rear edge portions should have curved edges.

24. Luggage blank according to claim 16, characterized in that it can be adapted to manufacture a folded luggage according to any of claims 1-16.