This application is the U.S. national phase of PCT/GB2018/052789, filed on Sep. 28, 2018, which claims the benefit of United Kingdom Patent Application Number 1715838.7, filed on Sep. 29, 2017, the entire disclosures of both of which are hereby incorporated by reference herein.
The present disclosure relates to articles of luggage. In particular, the present disclosure relates to suitcases.
Articles of luggage can come in many different shapes, sizes, and forms. In particular one known type of article of luggage is a suitcase. Typically, a suitcase may include at least one pair of wheel assemblies, and at least one or two handles. Known suitcases may be of a hard-side construction or a soft-side construction.
Hard suitcases (also known as hard-shell, hard-side or hard-construction suitcases) are typically constructed from rigid materials forming the major surfaces of the suitcase. For example, hard-side suitcases may be constructed from moulded plastic shells. The moulded plastic shells may be formed as three-dimensional shapes which, when assembled, define the major surface of the suitcase. As such, the rigid material forming of the outer surface may define the outer shape of the suitcase without the need for any other structural materials or supports.
Soft suitcases (also known as soft-shell, soft-side suitcases or soft-construction suitcases), typically include a fabric cover panels and a shape defining frame that is disposed around the periphery of one or more of the fabric cover panels. The fabric cover panels are often affixed to one another via the shape-defining frame such that the fabric cover panels substantially form the major surfaces of the suitcase.
In particular, for example, the shape-defining frame may take the form of flexible beading or piping, which is commonly used in the fabrication of soft suitcases as a means of separating and securing adjacent panels of the soft suitcase together, thereby defining the general shape of the suitcase. The adjacent edge portions of the panels are typically sewn to legs or flanges of the piping which extend beneath the outer face of the panels, leaving exposed to view only the usual outer tubular portion of the piping. Accordingly, the outer tubular portion of the piping typically sits proud of the surfaces of the suitcase thereby often defining many of the outer dimensions of the suitcase. The piping may be reinforced, such as by hard wire or coil wire inserted into the tubular portion.
In addition to piping, the shape-defining frame may also include interior metal framework combined with PE board and plywood or interior plastic frames that are bent and fixed together to form a particular shape so as to add further strength and structure to a suitcase.
Soft suitcases are usually either constructed in a “side bound” or “long bound” manner. Side bound is where whereby the piping is provided as two loops arranged in parallel either at the sides of the suitcase. Long bound is where one piping loop is provided at the rear of the suitcase on the main body and the other piping loop is provided on the front panel of the suitcase in a parallel arrangement. The loops mean that the edges defined by the loops will have a certain degree of curvature. This curvature means that the extremities of the three dimensional shape (commonly referred to as the “corners”) will also have a certain amount of curvature. As the corners will be rounded, this restricts the volume inside the suitcase that may be used for packing travel items (e.g. clothes), often known as the packing capacity or volume (measured in litres).
It is an object of the disclosure to provide an alternative and improved construction of soft-side suitcases.
According to a first aspect of the disclosure a suitcase is provided comprising a frame and a fabric cover for the frame. The fabric cover may be provided external to all outer edges of the frame, and the outer edges of the frame may internally tension the fabric cover to locate the fabric cover and to define the shape of the suitcase.
Preferably, the fabric cover is provided separately from the frame and is detached from the frame. In this regard, the fabric cover is located about the frame and tensioned by the frame without being fixed or attached directly to the frame. This allows a soft suitcase to be provided without the need for any piping (whether external or internal) or direct attachment to any frame elements.
By providing a suitcase whereby the cover is provided separately from the frame and detached from the frame, no fixings or attachments such as piping is required. This reduces the number of materials required to produce the suitcase. It also reduces the weight of the suitcase. Furthermore, the manufacturing and assembly process is simplified given that the cover may be constructed from a single material rather than requiring intermediary structure-providing materials such as piping or being attached to the frame.
The suitcase may comprise a shape-defining frame including a top moulded section, a bottom moulded section, and a plurality of elongate members connected between the top moulded section and the bottom moulded section. The suitcase may also comprise a fabric cover for the shape-defining frame provided external to all outer edges of the shape-defining frame. The shape-defining frame may include a top fabric cover panel, a bottom fabric cover panel, and an elongate fabric cover panel joined on a first side to the top fabric cover panel around a perimeter of the top fabric cover panel, and joined on an opposing side to the bottom fabric cover panel around a perimeter of the bottom fabric cover panel.
By providing a fabric cover for the suitcase comprising a top fabric cover panel, a bottom fabric cover panel and an elongate fabric cover panel, a cover for the suitcase may be provided with a reduced number of seams and a reduced amount of stitching when compared to traditional side bound and long bound constructions. Accordingly, the fabric cover for the suitcase may be constructed in a more economic fashion with fewer and less complex manufacturing and assembly processes. Furthermore, the fabric cover is provided external to all outer edges of the shape-defining frame. Thus, the shape-defining frame may be provided internal to the fabric cover such that the frame is not formed using any piping arrangement such as the loops provided in the traditional side bound and long bound arrangements. The absence of loops of piping means that the edges of the suitcase need not be curved and accordingly, the cover may follow the contouring of the frame. The absence of piping in general also reduces weight and the number of materials used in the construction of the suitcase. As such, a suitcase is provided with a substantially clean-lined outer profile with smooth contouring due to the absence of piping. Furthermore, the suitcase may have an increased internal volume for a given set of outer dimensions.
Preferably, the elongate fabric cover panel includes a first end joined to an opposing second end of the elongate fabric cover panel. As such, the elongate fabric cover panel may wrap around the elongate members provided between the top moulded section and the bottom moulded section. Advantageously, by providing an elongate fabric cover panel which wraps around the elongate members, a fabric cover may be provided with fewer seams, resulting in a more economic manufacturing process.
Preferably, the elongate fabric cover panel is joined to the top fabric cover panel by an inward facing seam and/or joined to the bottom fabric cover panel by an inward facing seam. As such, the fabric cover may be constructed using inward facing seams.
Advantageously, providing an elongate fabric cover constructed with inward facing seams, a suitcase may be provided with substantially flat outer surfaces. In particular, the inward facing seams of the fabric cover provide a flatter profile than piping constructions known in the prior art.
Preferably, each elongate member defines an outer edge of the shape-defining suitcase. For example, four elongate members may be provided to define four outer edges of the suitcase. As such, each elongate member, for example, four elongate members may be running from one corner of a suitcase to another corner of a suitcase. Such an arrangement may provide additional strength and stability to the suitcase.
Preferably, the shape-defining frame forms a substantially parallelepiped shape. For example, the shape-defining frame may form a substantially cuboidal shape. Advantageously, such a shape may provide a large internal volume in an efficient manner.
Preferably, the suitcase further comprises a telescopic handle. Preferably, the handle extends through the fabric cover from a support member. By providing the suitcase with a telescopic handle, a user may be more easily able to manoeuvre the suitcase. Furthermore, the telescopic handle may be easily stowed within the suitcase when the handle is not in use.
Preferably, the suitcase comprises a plurality of wheel assemblies. Each wheel assembly may be attached to the shape-defining frame through the fabric cover. For example, the suitcase may comprise two wheel assemblies or four wheel assemblies. A wheel assembly may be a cast-type wheel assembly and/or a fixed axis wheel assembly.
Preferably, the suitcase further comprises a lid formed in the elongate fabric cover panel. The lid may be configured to extend across only one major surface of the suitcase. Advantageously, by forming the lid in only one major surface of the suitcase, the lid may be provided substantially flat relative to the major surface of the suitcase when the lid is closed. By providing a relatively flat lid the internal volume of the suitcase defined by the shape-defining frame may be maximised for a given outside external dimension of the suitcase.
Preferably, the elongate members are rods.
Preferably, the top moulded section and/or the bottom moulded section include a plurality of edge-defining regions. The edge-defining regions may be configured to provide a shape-defining surface for the fabric cover. As such, the top moulded section and/or the bottom moulded section may have a three-dimensional profile in the edge-defining regions. The three-dimensional profile may be configured to define a shape of the suitcase in the edge region. By providing the top moulded section and/or the bottom moulded section with an edge defining region, the suitcase according to the first aspect may be provided with additional strength and/or rigidity.
A suitcase according to a second aspect of the disclosure may be provided comprising a shape-defining frame including a top moulded section, a bottom moulded section and a plurality of elongate members connected between the top moulded section and the bottom moulded section. The suitcase also comprises a fabric cover for the shape-defining frame provided external to all outer edges of the shape-defining frame. The fabric cover includes a first, elongated fabric panel and a second elongated fabric panel. The first elongated fabric panel is configured to extend across three surfaces of the shape-defining frame/suitcase, the surfaces being connected in a C-shaped configuration. The second elongated fabric panel also extends across three surfaces of the frame/suitcase. The first elongated fabric panel is joined to the second elongated fabric panel along their respective perimeters, such that the fabric cover encloses the shape-defining frame. Advantageously, by providing a fabric cover formed from a first elongated fabric panel and a second elongated fabric panel, a reduced and/or minimised number of seams is provided for constructing the fabric cover (i.e. compared to conventional side bound or long bond suitcases). Accordingly, a fabric cover is provided with a more economic construction.
According to a third aspect of the disclosure, a method of manufacturing a suitcase is provided. The method comprises a first step of joining plurality of a fabric cover panels together to form a fabric cover and a second step of assembling a frame inside the fabric cover. The inside of the fabric cover may be accessed through an opening in the fabric cover. The frame may be assembled such that outer edges of the frame may internally tension the fabric cover to locate the fabric cover to define the shape of the suitcase. Preferably, a fabric cover comprising fabric cover panels according to the first aspect or the second aspect may be joined together in the first step. Preferably, in the second step, the shape-defining frame of the first or second aspect may be assembled from inside the fabric cover in a single step, the inside of the fabric cover accessed through the opening in the fabric cover. The outer edges of the frame may internally tension the fabric cover to locate the fabric cover. As such, no stitching or joining of the outer cover to the frame may be required in order to manufacture the suitcase.
The invention may be put into practice in a number of ways and specific embodiments will now be described by way of example only and with reference to the Figures in which:
As shown in
The top moulded section 162 as shown in
The top moulded section 162 also includes edge defining regions 163. An edge defining region 163 may be provided along a length of the perimeter of the top moulded surface 162 which defines the top side surface of the internal shape-defining frame 160. As shown in
The perimeter of the top moulded section 162 may also define corners of the suitcase on the top side surface. As such, the perimeter of the top moulded section 162 may define the two-dimensional shape of the corners on the top side surface of the suitcase 100. The corners defined by the top moulded section 162 have a rounded profile. Preferably the corners have a rounded profile with a radius of curvature of no greater than 5 mm. Advantageously, by providing corners with a radius of curvature of no greater than 5 mm, the profile of the internal shape-defining frame 160 may have abrupt corners such that the internal volume of the suitcase 100 is increased and/or maximised whilst maintaining a suitable surface over which the fabric cover may extend without causing undue stress to the fabric cover 110. In alternative embodiments, the corners may be “sharp” in that there is no visible curvature. Alternatively, the radius of curvature may take a value in a range between 3 mm and 20 mm, and preferably between 3 and 10 mm.
The top moulded section 162 is preferably constructed from moulded plastic such as a thermoplastic polymer. Preferably, the top moulded section 162 is made from polypropylene or Acrylonitrile Butadiene Styrene (ABS) although any moulded plastic may be considered that provides sufficient rigidity and strength to the suitcase frame 160, ideally whilst being a lightweight material. The top moulded section 162 defines four corners of the suitcase 100.
The bottom moulded section 164 may also be constructed from moulded plastic such as described herein for the top moulded section 162. As such, the construction of the bottom moulded section 164 may be substantially the same as the top moulded section 162. In this regard, both the top moulded section 164 and the bottom moulded section 164 may be produced from the same mould.
Alternatively, the corner profiles and/or the edge defining region of the bottom moulded section 164 may differ from the construction of the profile and edge defining regions of the top moulded section 162 in order to define the desire shape of the suitcase 100. Such variations will be readily apparent to the person skilled in the art.
The internal shape-defining frame 160 as shown in
Each elongate member 165, 166, 167, 168, may be connected to the top moulded section 162 or the bottom moulded section 164 by connection means. Connection means for connecting the elongate members to either the top moulded section 162 or the bottom moulded section 164 may be provided by a fastener. The fastener may be connected through the top moulded section 162 or the bottom moulded section 164 to one of the ends of the elongate member. Alternatively, the elongate member may be connected to one of the top moulded section 162 or the bottom moulded section 164 by an adhesive. Suitable adhesives for attaching the elongate members to the top moulded section 162 or the bottom moulded section 164 are known to the skilled person.
The top moulded section and/or the bottom moulded section may include at least one elongate member receiving section for receiving one end of an elongate member 165, 166, 167, 168. As such the elongate member receiving section defines a void into which one end of an elongate member 165, 166, 167, 168 may be received. For example, the receiving section may be provided as a counterbore for receiving an end of the elongate member 165, 166, 167, 168. The end of the elongate member 165, 166, 167, 168 may be secured in the elongate member receiving section of the top moulded section 162 or the bottom moulded section 164 by connection means such as a fastener or adhesive. Alternatively, the elongate member receiving section of the top moulded section 162 or bottom moulded section 164 may secure the end of the elongate member 165, 166, 167, 168 by a frictional push fit. As such the elongate member receiving section may also be connection means according to this disclosure. For example, in the embodiment shown in
As shown in
As shown in
As, discussed above, the elongate fabric panel 116 is to be joined to the top fabric cover panel 112 by a single seam and the elongate fabric panel 116 is to be joined to the bottom fabric cover panel 114 by a single seam. A further vertical seam is provided by the joining of the two ends of the elongate fabric panel 116. Preferably, the fabric cover panels in the first embodiment of this disclosure are joined using stitching. Of course, other forms of joining may be equally suitable for providing the fabric cover 110 according to the first embodiment. For example, the fabric cover panels may be glued together using a suitable adhesive or the fabric cover panels may be fused together by the application of heat. The most suitable method of joining may depend upon the material used for the fabric cover 110.
The fabric cover 110 including the top fabric cover panel 112, the bottom fabric cover panel 114 and the elongate fabric cover 116 may be constructed from any fabric suitable for use in soft-sided articles of luggage. For example, the fabric cover 110 may be constructed from a nylon or a polyester material. Preferably, the fabric cover is provided by a woven material, for example, woven polyester or woven nylon. Such a material may provide the suitcase with a hard-wearing, water-resistant outer covering. Advantageously, such a covering helps protect the suitcase and its contents.
As shown in
A lid (opening) 170 is formed in the elongate fabric cover panel 116. The lid 170 in the elongate fabric cover panel 116 is formed by cutting the elongate fabric cover panel 116. As shown in
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The skilled person will appreciate that the embodiment shown in
Next, a method of constructing the suitcase according to either the first embodiment or the second embodiment of this disclosure will be described.
Firstly, the outer fabric cover may be fully assembled by stitching together all respective seams of the fabric cover. As such, the fully assembled fabric cover may fully define an internal volume. As the fabric cover does not have any shape-defining frame such as piping, it is generally flexible and does not comprise any rigid structure.
Next, an opening (i.e. the lid) in the fabric cover may be used to access the internal volume defined by the fabric cover. The shape-defining internal frame 160, 210, may then be assembled inside the fabric cover through the opening provided in fabric cover. For example, the shape-defining internal frame 160, 210 may be assembled through the opening provided by the lid 170, 230. As such, the completed suitcase is assembled by constructing the internal shape-defining frame within the fabric cover via the opening. Such a method of construction allows the fabric cover 110, 220 to be constructed in a separate manufacturing step prior to the assembly complete suitcase 100, 200 including the shape-defining frame 160, 210. Such a method of construction is advantageous as it does not require any further adhesion, joining or handle stitching of the fabric cover 110, 220 to the internal shape-defining frame 167, 210. Thus, the suitcase 100, 200 may be assembled in a reduced and/or minimal number of manufacturing steps. Furthermore, as piping is not required, less stitching is needed to assemble the suitcase 100, 200, thereby further reducing and/or minimising the number of manufacturing steps.
Optionally, the fabric cover may be provided with an internal lining layer. The internal lining layer may include an opening to allow the internal frame to be assembled between the internal lining layer and the layer defined by the fabric cover. The internal lining layer may be attached to the fabric cover around the opening in order to line the internal volume of the suitcase. The lining layer may be provided as a fabric material. The internal lining layer may be attached to the fabric cover by any suitable joining method, for example by stitching or adhesive.
Accordingly, a soft suitcase, a soft-sided suitcase, or soft-type suitcase according to this disclosure is provided. The skilled person will appreciate that other articles of luggage may also be constructed according to this disclosure using a soft-type or soft-sided construction. For example, other shapes of articles of luggage may be provided with a soft-sided construction by providing an internal shape-defining frame including moulded sections connected by elongate members and a fabric cover for the shape-defining internal frame including a reduced number of seams. Thus, an article of luggage which has a soft-sided construction may be provided which is lightweight and resilient whilst still being economic to manufacture. In particular, an article of luggage with a reduced number of seams according to this disclosure may have a relatively flat profile giving the article of luggage a distinctive look and reducing the complexity of the construction of the article of luggage.
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1715838 | Sep 2017 | GB | national |
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PCT/GB2018/052789 | 9/28/2018 | WO |
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WO2019/064025 | 4/4/2019 | WO | A |
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