EP3361901A1 - Suitcase with collapsible structure - Google Patents

Suitcase with collapsible structure

Info

Publication number
EP3361901A1
EP3361901A1 EP16812878.3A EP16812878A EP3361901A1 EP 3361901 A1 EP3361901 A1 EP 3361901A1 EP 16812878 A EP16812878 A EP 16812878A EP 3361901 A1 EP3361901 A1 EP 3361901A1
Authority
EP
European Patent Office
Prior art keywords
suitcase
edge
wall
articulation
stretch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16812878.3A
Other languages
German (de)
French (fr)
Other versions
EP3361901B1 (en
Inventor
Chiara Caramelli
Alberto Grassi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chiara Caramelli Design Lab
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3361901A1 publication Critical patent/EP3361901A1/en
Application granted granted Critical
Publication of EP3361901B1 publication Critical patent/EP3361901B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C7/00—Collapsible or extensible purses, luggage, bags or the like
    • A45C7/0018—Rigid or semi-rigid luggage
    • A45C7/0022—Rigid or semi-rigid luggage comprising an integrated expansion device
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/14—Rigid or semi-rigid luggage with built-in rolling means
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C7/00—Collapsible or extensible purses, luggage, bags or the like
    • A45C7/0018—Rigid or semi-rigid luggage
    • A45C7/0036—Rigid or semi-rigid luggage collapsible to a minimal configuration, e.g. for storage purposes
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/03—Suitcases
    • A45C2005/037—Suitcases with a hard shell, i.e. rigid shell as volume creating element

Definitions

  • the invention relates to a suitcase, for example a travel suitcase, of variable volume, that during the use can change from an expanded configuration for maximum volume to contain and transport objects, clothes etc. to a collapsed configuration of minimum volume when the suitcase has to be stored.
  • the suitcase of invention is a rigid or semi-rigid type suitcase with a collapsible structure in which, one, or more of the side-walls are foldable so you can switch from one configuration to another.
  • one lateral side can be detached and folded by retracting some of the side-walls, in this specific example two opposite sidewalls are folded inwards.
  • the lateral side reduce his volume and can be placed between the two shells that may in turn be connected again by means of one of the zip, reducing the overall dimensions of the suitcase to the maximum level represented by thickness or height of the lateral side.
  • the first drawback is due to the fact that to pass from one configuration to another it is always necessary to completely disconnect at least one shell in order to subsequently reattach the shells together.
  • a further drawback is due to the fact that the corners of lateral side are substantially rigid and do not allow a complete bellow folding of the lateral side.
  • a further drawback of this example of realization is that due to the joints of the lateral sidewalls, is not possible to put a lateral handle in a barycentric position, with subsequent difficulties in handling and transportation of the suitcase.
  • the present invention intends to overcome the drawbacks of any already known solutions proposing a suitcase with a collapsible rigid structure, without the need for divisible parts, at the same time having a robust configuration when expanded and easily changed from the expanded configuration to the collapsed one and vice versa.
  • a further advantage lies in the robustness of the suitcase in its expanded configuration when used as a container and when carriage.
  • a further advantage consists in the possibility of applying barycentric carrying handles.
  • a further advantage consists of providing a double zip, where each zip performs distinct functions for construction of the structure in expanded configuration and in traditional opening and closing of the suitcase.
  • a further advantage is due to the fact that the zip providing the structural assembly is not accessible from the outside in the ordinary use of the suitcase thus increasing security against possible tampering.
  • a further advantage is due to the fact that the zips are not subject to structural stress during lifting and / or opening and closing of the suitcase.
  • FIG.1 shows a front elevation of the suitcase according to the invention
  • FIG. 2 shows a rear view of the suitcase of fig.1 ;
  • FIG. 3 shows a first side view of the suitcase of fig .1 ;
  • FIG. 4 shows a second side view of the suitcase of fig.1 ;
  • FIG. 5 shows a top view of the suitcase of fig.1 ;
  • FIG. 7 shows an isometric view of the suitcase of fig.1 ;
  • FIG. 8-14 shows successive views of the suitcase of fig.1 in transition from expanded to collapsed configuration
  • - Fig.15 shows a detailed isometric view of fig.1 of the suitcase in an intermediate stage of collapse
  • FIG. 16 shows a detail cross section in elevation of the suitcase.
  • Fig. 17a and 17b show a schematic detail of the articulated corners portions of the lateral sides of the suitcase.
  • FIG. 18a and 18b show an embodiment of the suitcase with only two wheels, in the expanded and collapsed configuration respectively.
  • FIG. 19a, 19b shows a schematic view of the inside of the suitcase when collapsed.
  • FIG. 20 shows the suitcase in the expanded open configuration from above.
  • the suitcase comprises of a front shell 1 provided with an edge 2, and a rear shell 3 provided with an edge 4, whereby the edges 2 and 4 are substantially overlapping each other in the collapsed configuration (fig.14).
  • both shells 1,3 are of concave shape and are made of a relatively rigid or semi-rigid material, for example polypropylene, polycarbonate, EVA or similar materials used in the industry, possibly coated with textile materials.
  • the suitcase also comprises of a perimeter side 5 which constitutes a frame for spacing the front and rear shells, generally quadrangular shape with plurality of sidewalls 12, 13, 14, 15, defined between a first edge 6 which extends in correspondence of the edge 2 of the front shell 1 , and a second edge 7, which extends in correspondence of the edge 4 of the rear shell 3.
  • a perimeter side 5 which constitutes a frame for spacing the front and rear shells, generally quadrangular shape with plurality of sidewalls 12, 13, 14, 15, defined between a first edge 6 which extends in correspondence of the edge 2 of the front shell 1 , and a second edge 7, which extends in correspondence of the edge 4 of the rear shell 3.
  • At least one of the side-walls 12, 13, 14, 15 of perimeter side 5 is provided with at least one intermediate folding line 11 orthogonal to the edges 6, 7 of side 5, and furthermore, are connected by folding articulated angular joint portions 30, 31, 32, 33.
  • the intermediate fold line 11 is provided on the side-wall 13 the lower bottom of the side 5 and it is arranged to allow a folding towards the inside of the suitcase.
  • a first linear reversible junction 9 arranged to connect at least to a portion of the first edge 6 of side 5 to, at least, a portion of the edge 2 of front shell 1, and a second linear reversible junction 10 arranged to connect, to at least, a portion of the second edge 7 of side 5 to at least a portion of the edge 4 of the rear shell 3.
  • the linear junctions 9, 10 are linear junctions as Zipper or "zip” type.
  • the suitcase side 5 may include a side-wall 12, split into sectors articulated 41 , 42, 65, defined by a first side 18 articulated along a stretch of articulation 16 with respect to the corresponding side 19 of the edge 2 of the front shell 1 and a second side 20 articulated along a stretch of articulation 17 with respect to side 21 of the edge 4 of the rear shell 3.
  • the side-wall 12 also has a line of intermediate articulation line 23 parallel to the first and second sides 18, 20. Thanks to this solution, when the suitcase is transformed to the collapsed configuration, the side-wall 12, being articulated along the intermediate articulation line 23, folds parallel to the edges of the articulation with the shells 1, 3 and allows the two shells 1 , 3 to overlap with precision along the respective edges while maintaining the physical continuity with side 5 by means of the articulation lines 16, 17 so that they can be stable therefore not detachable.
  • first linear junction 9 is extended to at least a portion 24 of the first edge 18 of the side-wall 12 as to allow the opening and closing of shell 1 relative to side-wall 12, and the second linear junction 10 is extended between the first and second ends 28, 29 of the articulation line 23 and includes preferably two portions 25, 27 which in turn extend from the ends of the stretch of articulation 17 to the ends of the intermediate line 23.
  • the side-wall 12 also comprises of a second intermediate articulation line 26 orthogonal to the stretches of articulation 16, 17 and extended from one end 39 of the stretch of articulation 16 to one end 29 of the first intermediate articulation line 23. Still with reference to Fig. 4, with the configuration as described, the side-wall 12 of the suitcase is articulated:
  • Figures 8-14 show the succession of the phases from the suitcase in open expanded configuration to the collapsed configuration of minimum volume.
  • Fig. 8 9 the two junctions 9, 10 are completely closed and the shell 1 is articulated to side-wall 12 by means of the stretch of articulation 16.
  • the suitcase By opening and closing junction 9, the suitcase can be opened (Fig.9) or closed (Fig.8) to access the full internal capacity.
  • linear junctions 9, 10 each comprise two half junction parts 34, 35; 36, 37, of which
  • the half part 34 is fixed inside edge 2 of shell 1 ,
  • the half part 35 is fixed to the outside of the edge 18 of the side 5 -
  • the half part 36 is fixed to the outside of the edge 20 of the side 5
  • the half part 37 is fixed inside the edge 4 of the shell 3.
  • the first junction 9 is accessible from the outside of the suitcase, while junction 10 is accessible and visible from the inside of the suitcase once the first junction 9 is opened.
  • junctions 9, 10 are represented in a thick continues line, the non-visible parts in dotted line.
  • junctions 9, 10 are both completely open, the side-wall 12 is cut by the opened junctions parts 25 and 27, and side 5 is attached to the shells 1 , 3 only by the stretches of articulation 16, 17 of the side-wall 12.
  • Side 5 can therefore begin to fold on the angular joints 30, 31 , 32, 33, on the line of intermediate articulation line 26 of the side-wall 12 and the intermediate articulation line 11 of the bottom side-wall 13.
  • the angular articulation 31 next to the intermediate articulation line 26 and the intermediate articulation line 11 of the side-wall 13 are fixed towards the interior of the suitcase so that sections 41, 42 of the sidewall 12 articulated along the intermediate line 26 are overlapped, the opposite side-wall 15 approaches side-wall 12, and side 5 may collapse against sidewall 12 with a bellows movement.
  • angular joints 30-33 are preferably constructed by articulation bands namely provided of more articulation lines, for the purpose of being able, where necessary, for example in folding corner 31, to bend the angle of the side both outward or inward.
  • side 5 is collapsed against side-wall 12 that can bend along the intermediate line 23 and allowing the collapsed side 5 to align parallel to shells 1 , 3 (Fig.12-Fig.13) inside the suitcase.
  • Fig. 15 shows, in greater detail, the method of folding side-wall 12 which is articulated into line 23 and it is free to slide shut due to cuts of the traits of open junctions 25, 27.
  • the intermediate articulation line 23 of side-wall 12, located at the half width of side-wall 12, in combination with cuts 25, 27, allows the two shells 1 , 3 to overlap with precision in the closing collapsed configuration and to match the respective edges 2, 4.
  • Fig. 14 shows the closed configuration suitcase, with the collapsed side 5 inwards.
  • the linear junctions 9, 10, are constituted by a zipper or "zip" type.
  • Fig.16 shows detail of a preferred shape of the suitcase, in which side 5 comprises of an upper side-wall 14 extended without joints between the two angular portions 30, 31 and is provided with external lateral abutment surfaces 51, 52, overlapping to the inner surfaces of abutment corresponding to sides 53, 54 of the front and rear shells 1 , 3.
  • the upper side-wall 14 is therefore capable of bearing the suitcase weight and is provided for the purpose of a handle 55 accessible from the outside for the purpose of carrying.
  • side-wall 15 of side 5 opposite to the collapsing side-wall 12, which may itself be provided with a carrying handle 56.
  • Figures 17a, 17b show in greater detail the sections of two possible realization forms of angular joint portion 30-33, which can be formed by a succession of slats or cylinders 64 connected for example by a coating of fabric (or co-molded in plastic material) and flexible in both bending directions (fig.17a), or by slats 62 put next to each other and connected by lines of reduced thickness 63 with articulation function (fig.17b).
  • the invention achieves important advantages.
  • the structure described above makes it possible to realize a suitcase that in its expanded configuration has an increased volume, but in its collapsed configuration has a much reduced volume, at the same time being easy and quickly transformed between states with no removable pieces to store separately.
  • the invention allows handles to be mounted in a barycentric position, on the upper and lateral sidewalls (for example in the view of Fig. 1), thereby facilitating carrying.
  • a further advantageous feature consist to the fact that, thanks to the overlap between shell and the side, the zips are not directly stressed, as they only serve to connect the rigid sections and therefore it avoids any misalignment of the rigid parts with a consequent deformation of the whole suitcase during lifting or when the suitcase is lifted by the handle.
  • a further advantageous feature is that the articulated corners are composed of a series of rigid elements and articulated between themselves like a chain, in such a way, that when they are inserted in a rigid channel, (connection between shelH , shell 2), they become segments of union for both parts and become more resistant to deformation.
  • a further advantageous feature consist in the fact that the inner linear junction 10 is not accessible from the outside when the suitcase is used in its expanded configuration, and therefore will reduce the chance of tampering.

Abstract

Suitcase with collapsible structure, comprising a front shell (1), a rear shell (3), a peripheral side-wall (5) spacing front and rear shells, connected to the shells via reversible linear joints, in which at least one side-wall (12, 13, 14, 15) of side (5) is provided with at least a folding line (11 ) for the collapse of the side-wall (5).

Description

SUITCASE WITH COLLAPSIBLE STRUCTURE
Technical field
The invention relates to a suitcase, for example a travel suitcase, of variable volume, that during the use can change from an expanded configuration for maximum volume to contain and transport objects, clothes etc. to a collapsed configuration of minimum volume when the suitcase has to be stored.
More in detail the suitcase of invention is a rigid or semi-rigid type suitcase with a collapsible structure in which, one, or more of the side-walls are foldable so you can switch from one configuration to another.
Background art
Currently collapsible suitcases are already known.
An example is represented by the international patent application WO2013056392. In this document a suitcase is described consisting of two shells, one front and one rear, joined together by two parallel zips to a lateral side composed of foldable side- walls, in which the presence of the double zip has the purpose to pair side-walls in different measures.
In the first example (fig.5), by fuily opening both zips, one lateral side can be detached and folded by retracting some of the side-walls, in this specific example two opposite sidewalls are folded inwards.
Therefore, the lateral side reduce his volume and can be placed between the two shells that may in turn be connected again by means of one of the zip, reducing the overall dimensions of the suitcase to the maximum level represented by thickness or height of the lateral side.
However, this well known suitcase has some drawbacks.
The first drawback is due to the fact that to pass from one configuration to another it is always necessary to completely disconnect at least one shell in order to subsequently reattach the shells together.
Further drawback consist in the fact that in the expanded configuration, both front and rear shells are connected by a portion of zip that is subject to efforts and tensions that could potentially damage it, either when both shells are to be opened and closed to fill the suitcase or during the process of lifting and transportation of the suitcase. A further drawback is due to the fact that in the reduced configuration, the detachable lateral side must be stored separately.
A further drawback is due to the fact that the corners of lateral side are substantially rigid and do not allow a complete bellow folding of the lateral side.
A further drawback of this example of realization is that due to the joints of the lateral sidewalls, is not possible to put a lateral handle in a barycentric position, with subsequent difficulties in handling and transportation of the suitcase.
In a further example given in the document WO2013056392 (fig.1), the side is not completely detachable, but is fixed with one edge to one of the shells and is equipped with a half-zip along the free edge. In this case, the lateral side is made of a continuous sidewall linked by corner portions collapsible with bellow movement, such that to vary the suitcase configuration it is always necessary to detach a shell, but you can open a single zip, fold the side corners with bellow movement, and fold the side-walls inward before to connect once again the two shells.
Object of the invention
The present invention intends to overcome the drawbacks of any already known solutions proposing a suitcase with a collapsible rigid structure, without the need for divisible parts, at the same time having a robust configuration when expanded and easily changed from the expanded configuration to the collapsed one and vice versa.
Summary of the invention
To these purposes it has been achieved realizing a suitcase according to at least one of the attached claims.
The first advantage consists of the fact that to pass from the expanded to the collapsed configuration it is not necessary to detach the lateral side of the suitcase, but it is possible to maintain the physical continuity of lateral side with the shells, and to overlap the shells in the collapsed configuration even if made by rigid or semi-rigid material.
A further advantage consists in the simplicity and speed of the actions that the user must perform to convert the suitcase from the expanded configuration to the collapsed and vice versa.
A further advantage lies in the robustness of the suitcase in its expanded configuration when used as a container and when carriage. A further advantage consists in the possibility of applying barycentric carrying handles.
A further advantage consists of providing a double zip, where each zip performs distinct functions for construction of the structure in expanded configuration and in traditional opening and closing of the suitcase.
A further advantage is due to the fact that the zip providing the structural assembly is not accessible from the outside in the ordinary use of the suitcase thus increasing security against possible tampering.
A further advantage is due to the fact that the zips are not subject to structural stress during lifting and / or opening and closing of the suitcase.
Design list
These and others advantages will be best understood by someone skilled in this specific field, from the following descriptions and attached drawings, given as non- limiting examples, in which:
- Fig.1 shows a front elevation of the suitcase according to the invention;
- Fig. 2 shows a rear view of the suitcase of fig.1 ;
- Fig. 3 shows a first side view of the suitcase of fig .1 ;
- Fig. 4 shows a second side view of the suitcase of fig.1 ;
- Fig. 5 shows a top view of the suitcase of fig.1 ;
- Fig. 6 shows a bottom view of the suitcase of fig .1 ;
- Fig. 7 shows an isometric view of the suitcase of fig.1 ;
- Fig. 8-14 shows successive views of the suitcase of fig.1 in transition from expanded to collapsed configuration;
- Fig.15 shows a detailed isometric view of fig.1 of the suitcase in an intermediate stage of collapse;
- Fig. 16 shows a detail cross section in elevation of the suitcase.
- Fig. 17a and 17b show a schematic detail of the articulated corners portions of the lateral sides of the suitcase.
- Fig. 18a and 18b show an embodiment of the suitcase with only two wheels, in the expanded and collapsed configuration respectively.
- Fig. 19a, 19b shows a schematic view of the inside of the suitcase when collapsed.
- Fig. 20 shows the suitcase in the expanded open configuration from above. Detailed description
Described with reference to the attached drawings is a collapsible suitcase structure according to the invention.
The suitcase comprises of a front shell 1 provided with an edge 2, and a rear shell 3 provided with an edge 4, whereby the edges 2 and 4 are substantially overlapping each other in the collapsed configuration (fig.14).
Preferably, but not in a limiting sense, both shells 1,3 are of concave shape and are made of a relatively rigid or semi-rigid material, for example polypropylene, polycarbonate, EVA or similar materials used in the industry, possibly coated with textile materials.
The suitcase also comprises of a perimeter side 5 which constitutes a frame for spacing the front and rear shells, generally quadrangular shape with plurality of sidewalls 12, 13, 14, 15, defined between a first edge 6 which extends in correspondence of the edge 2 of the front shell 1 , and a second edge 7, which extends in correspondence of the edge 4 of the rear shell 3.
At least one of the side-walls 12, 13, 14, 15 of perimeter side 5 is provided with at least one intermediate folding line 11 orthogonal to the edges 6, 7 of side 5, and furthermore, are connected by folding articulated angular joint portions 30, 31, 32, 33. Preferably, the intermediate fold line 11 is provided on the side-wall 13 the lower bottom of the side 5 and it is arranged to allow a folding towards the inside of the suitcase.
According to the invention, it is provided a first linear reversible junction 9 arranged to connect at least to a portion of the first edge 6 of side 5 to, at least, a portion of the edge 2 of front shell 1, and a second linear reversible junction 10 arranged to connect, to at least, a portion of the second edge 7 of side 5 to at least a portion of the edge 4 of the rear shell 3.
Preferably, the linear junctions 9, 10 are linear junctions as Zipper or "zip" type.
As it is best seen in Fig. 4, in the illustrated shape of realization, the suitcase side 5 may include a side-wall 12, split into sectors articulated 41 , 42, 65, defined by a first side 18 articulated along a stretch of articulation 16 with respect to the corresponding side 19 of the edge 2 of the front shell 1 and a second side 20 articulated along a stretch of articulation 17 with respect to side 21 of the edge 4 of the rear shell 3.
According to the invention, the side-wall 12 also has a line of intermediate articulation line 23 parallel to the first and second sides 18, 20. Thanks to this solution, when the suitcase is transformed to the collapsed configuration, the side-wall 12, being articulated along the intermediate articulation line 23, folds parallel to the edges of the articulation with the shells 1, 3 and allows the two shells 1 , 3 to overlap with precision along the respective edges while maintaining the physical continuity with side 5 by means of the articulation lines 16, 17 so that they can be stable therefore not detachable.
Preferably the first linear junction 9 is extended to at least a portion 24 of the first edge 18 of the side-wall 12 as to allow the opening and closing of shell 1 relative to side-wall 12, and the second linear junction 10 is extended between the first and second ends 28, 29 of the articulation line 23 and includes preferably two portions 25, 27 which in turn extend from the ends of the stretch of articulation 17 to the ends of the intermediate line 23.
The side-wall 12 also comprises of a second intermediate articulation line 26 orthogonal to the stretches of articulation 16, 17 and extended from one end 39 of the stretch of articulation 16 to one end 29 of the first intermediate articulation line 23. Still with reference to Fig. 4, with the configuration as described, the side-wall 12 of the suitcase is articulated:
- at 16 and 17 with respect to the shells 1 , 3;
- at 30 and 33 with respect of the upper side-wall14 and lower side-wall 13 of side 5,
- With the intermediate line 23 parallel to the articulation lines 16, 17,
- With the intermediate line 26 comprised and orthogonal between the lateral articulation line 16 and the intermediate line 23;
whilst it is attachable reversibly to the shells 1 , 3 by means of junctions 9, 10, the latter by partly crossing the width of side-wall 12 by means of the stretch junction 25,
27 until it meets the intermediate articulation line 23 to each ends 28, 29.
Figures 8-14 show the succession of the phases from the suitcase in open expanded configuration to the collapsed configuration of minimum volume.
In Fig. 8, 9 the two junctions 9, 10 are completely closed and the shell 1 is articulated to side-wall 12 by means of the stretch of articulation 16. By opening and closing junction 9, the suitcase can be opened (Fig.9) or closed (Fig.8) to access the full internal capacity.
In greater detail, the above mentioned linear junctions 9, 10 each comprise two half junction parts 34, 35; 36, 37, of which
- The half part 34 is fixed inside edge 2 of shell 1 ,
- The half part 35 is fixed to the outside of the edge 18 of the side 5 - The half part 36 is fixed to the outside of the edge 20 of the side 5
- The half part 37 is fixed inside the edge 4 of the shell 3.
Preferably, according to the invention, the first junction 9 is accessible from the outside of the suitcase, while junction 10 is accessible and visible from the inside of the suitcase once the first junction 9 is opened.
In the figures, the visible parts of junctions 9, 10 are represented in a thick continues line, the non-visible parts in dotted line.
In fig.10, junctions 9, 10 are both completely open, the side-wall 12 is cut by the opened junctions parts 25 and 27, and side 5 is attached to the shells 1 , 3 only by the stretches of articulation 16, 17 of the side-wall 12. Side 5 can therefore begin to fold on the angular joints 30, 31 , 32, 33, on the line of intermediate articulation line 26 of the side-wall 12 and the intermediate articulation line 11 of the bottom side-wall 13. In more detail, the angular articulation 31 next to the intermediate articulation line 26 and the intermediate articulation line 11 of the side-wall 13 are fixed towards the interior of the suitcase so that sections 41, 42 of the sidewall 12 articulated along the intermediate line 26 are overlapped, the opposite side-wall 15 approaches side-wall 12, and side 5 may collapse against sidewall 12 with a bellows movement.
It is noted that the angular joints 30-33 are preferably constructed by articulation bands namely provided of more articulation lines, for the purpose of being able, where necessary, for example in folding corner 31, to bend the angle of the side both outward or inward.
In fig.11 , side 5 is collapsed against side-wall 12 that can bend along the intermediate line 23 and allowing the collapsed side 5 to align parallel to shells 1 , 3 (Fig.12-Fig.13) inside the suitcase.
Fig. 15 shows, in greater detail, the method of folding side-wall 12 which is articulated into line 23 and it is free to slide shut due to cuts of the traits of open junctions 25, 27.
Advantageously, it is noted that, the intermediate articulation line 23 of side-wall 12, located at the half width of side-wall 12, in combination with cuts 25, 27, allows the two shells 1 , 3 to overlap with precision in the closing collapsed configuration and to match the respective edges 2, 4.
Fig. 14 shows the closed configuration suitcase, with the collapsed side 5 inwards. In a preferred example of embodiment, the linear junctions 9, 10, are constituted by a zipper or "zip" type. Fig.16 shows detail of a preferred shape of the suitcase, in which side 5 comprises of an upper side-wall 14 extended without joints between the two angular portions 30, 31 and is provided with external lateral abutment surfaces 51, 52, overlapping to the inner surfaces of abutment corresponding to sides 53, 54 of the front and rear shells 1 , 3.
In this form, the upper side-wall 14 is therefore capable of bearing the suitcase weight and is provided for the purpose of a handle 55 accessible from the outside for the purpose of carrying.
A similar consideration applies to side-wall 15 of side 5, opposite to the collapsing side-wall 12, which may itself be provided with a carrying handle 56.
It is specified that the highlighted section in Figure 16 extends around the entire perimeter of side 5 in correspondence of edges 2, 4 of the front and rear shells 1 , 3. In various practical applications, it will be then possible to provide a further implementation of luggage on wheels, for example four wheels 60 fixed to the body of the shells 1 and 3, and comprising of a removable handle 61 from the rear shell 3, like a "Trolley" which is already know and therefore not further described.
In figures 18a, 18b it is shown a possible "trolley" configuration, respectively, in the expanded configuration and in the reduced configuration, in which only two wheels 60 are provided, fixed underneath to the rear body shell 3. In this case it will be possible to advantageously reduce the overall depth of the front shell 1 which may have a substantially flat form with additional benefit in reducing the total volume of the collapsed suitcase
Figures 17a, 17b show in greater detail the sections of two possible realization forms of angular joint portion 30-33, which can be formed by a succession of slats or cylinders 64 connected for example by a coating of fabric (or co-molded in plastic material) and flexible in both bending directions (fig.17a), or by slats 62 put next to each other and connected by lines of reduced thickness 63 with articulation function (fig.17b).
Figures 19a and 19b show the inner section of the suitcase, with the highlighted fold pattern of side 5 between the two shells 1 and 3, in the collapsed configuration, with the angular joints in the form shown in Figures 17a and 17b respectively.
The invention achieves important advantages.
The structure described above makes it possible to realize a suitcase that in its expanded configuration has an increased volume, but in its collapsed configuration has a much reduced volume, at the same time being easy and quickly transformed between states with no removable pieces to store separately.
Furthermore, the invention allows handles to be mounted in a barycentric position, on the upper and lateral sidewalls (for example in the view of Fig. 1), thereby facilitating carrying.
A further advantageous feature, consist to the fact that, thanks to the overlap between shell and the side, the zips are not directly stressed, as they only serve to connect the rigid sections and therefore it avoids any misalignment of the rigid parts with a consequent deformation of the whole suitcase during lifting or when the suitcase is lifted by the handle.
A further advantageous feature is that the articulated corners are composed of a series of rigid elements and articulated between themselves like a chain, in such a way, that when they are inserted in a rigid channel, (connection between shelH , shell 2), they become segments of union for both parts and become more resistant to deformation.
A further advantageous feature consist in the fact that the inner linear junction 10 is not accessible from the outside when the suitcase is used in its expanded configuration, and therefore will reduce the chance of tampering.
The invention has been described with reference to a preferred form of embodiment, however it is understood that equivalent modifications may be made without however departing from the main scope of the protection agreed to the present industrial invention.

Claims

1. A suitcase with collapsible structure, capable of assuming an expanded configuration of normal use (C1) and a collapsed configuration (C2), comprising: a front shell (1) provided with a perimetral edge (2);
a rear shell (3) provided with a perimetral edge (4) that can be associated to the edge (2) of the front side (1);
a perimetral side (5) for distancing said front and rear shells, comprising a plurality of distancing walls (12, 13, 14, 15) defined between a first edge (6) that in the configuration of use extends at the edge (2) of the front shell (1) and a second edge (7) that extends at the edge (4) of the rear shell (3), said walls being connected by foldable articulated angular portions (30, 31 , 32, 33);
a first reversible linear joining element (9) for connecting at least one stretch of the first edge (6) of the side (5) to at least one stretch of the edge (2) of the front shell
(1) ; and
a second reversible linear joining element (10) for connecting at least one stretch of the second edge (7) of the side (5) to at least one stretch of the edge (4) of the rear shell (3);
wherein at least one wall (12, 13, 14, 15) of the side (5) is provided with at least one intermediate folding line (11) orthogonal to the edges (6, 7) of the side (5),
said suitcase being characterized in that:
said side (5) comprises a wall (12) defined by a first side (18) that can be articulated along a stretch (16) of articulation with respect to a side (19) of the edge
(2) of the front shell (1) and a second side (20) that can be articulated along a stretch (17) of articulation with respect to a side (21) of the edge (4) of the rear shell (3); and said wall (12) comprises a first intermediate articulation line (23) comprised between and parallel to said articulation stretches (16, 17) of the wall (12).
2. The suitcase according to Claim 1, characterized in that:
said first linear joining element (9) extends for at least one openable joining stretch (24) of the first edge (18) of the wall (12), which runs from one end to the other (38, 39) of the articulation stretch (16) to enable reversible opening and closing of the shell (1) with respect to the side (5) of the suitcase; said second linear joining element (10) extends for at least one openable joining stretch (40) that runs from one end (28) to the other end (29) of said first intermediate articulation line (23); and
said wall (12) comprises a second intermediate articulation line (26) orthogonal to said articulation stretches (16, 17) of the wall (12), which extends from the side (18) to one end (29) of the first intermediate articulation line (23).
3. The suitcase according to Claim 2, wherein the second intermediate articulation line (26) orthogonal to said articulation stretches (16, 17) of the wall (12) extends from one end (39) of the articulation stretch (16) to one end (29) of the first intermediate articulation line (23).
4. The suitcase according to any one of the preceding claims, wherein said first linear joining element (9) is accessible for being operated from outside the suitcase, and said second linear joining element (10) is accessible for being operated only inside the suitcase.
5. The suitcase according to any one of the preceding claims, wherein said joining stretch (40) of the second linear joining 3 element (10) extends for at least one joining stretch (25, 27) that runs from the second edge (20) of the wall (12) to one end (28, 29) of said first intermediate articulation line (23).
6. The suitcase according to Claim 5, comprising two joining stretches (25, 27) that run from the ends of the articulation stretch (17) to the respective ends (28, 29) of the first intermediate articulation line (23).
7. The suitcase according to any one of the preceding claims, wherein said at least one intermediate folding line (11) is provided in a bottom wall (13) of the side (5).
8. The suitcase according to any one of the preceding claims, wherein said side comprises a top wall (14) extending without articulations between two angular portions (30, 31) and provided with external lateral contrast surfaces (32, 33) that can be superimposed on internal contrast surfaces of corresponding sides (34, 35) of the front and rear shells (1 , 3), said top wall (14) being provided with a handle (36) accessible from outside for carrying the suitcase.
9. The suitcase according to any one of the preceding claims, wherein at least one of said linear joining elements (9, 10) is constituted by a zip fastener.
10. The suitcase according to any one of the preceding claims, wherein at least one of said shells (1 , 3) is a shell having a concave shape made of a rigid or semi-rigid material, for example polypropylene, polycarbonate, EVA.
EP16812878.3A 2015-10-16 2016-10-17 Suitcase with collapsible structure Active EP3361901B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB2015A005228A ITUB20155228A1 (en) 2015-10-16 2015-10-16 SUITCASE WITH A COLLASSABLE STRUCTURE
PCT/IT2016/000241 WO2017064739A1 (en) 2015-10-16 2016-10-17 Suitcase with collapsible structure

Publications (2)

Publication Number Publication Date
EP3361901A1 true EP3361901A1 (en) 2018-08-22
EP3361901B1 EP3361901B1 (en) 2020-03-25

Family

ID=55315638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16812878.3A Active EP3361901B1 (en) 2015-10-16 2016-10-17 Suitcase with collapsible structure

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EP (1) EP3361901B1 (en)
IT (1) ITUB20155228A1 (en)
WO (1) WO2017064739A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL261016A (en) 2018-08-06 2019-01-31 Keter Holdings Ltd Suitcase
DE202019001691U1 (en) * 2019-04-12 2020-07-14 Marwin Gmbh Foldable suitcase with zip and side wheels
LU500217B1 (en) * 2021-05-28 2022-11-28 Hey Circle Gmbh I G Foldable transport container
LU500218B1 (en) * 2021-05-28 2022-11-28 Hey Circle Gmbh I G Foldable transport container
CN216453766U (en) * 2021-12-17 2022-05-10 上海海琛国际贸易有限公司 Foldable luggage case

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013056392A1 (en) * 2011-10-18 2013-04-25 伯勒仕有限公司 Suitcase structure

Also Published As

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ITUB20155228A1 (en) 2017-04-16
WO2017064739A1 (en) 2017-04-20
EP3361901B1 (en) 2020-03-25

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