The field of invention generally relates to luggage.
Luggage cases or the like may include two or more wheels mounted on or next to the bottom panel of such luggage cases to facilitate transportation of the luggage cases by dragging or pushing the luggage cases. Even when such luggage cases include this convenient wheeling system, it may be necessary to lift or carry the case by hand. For example, placing the luggage case in the trunk or passenger compartment of a vehicle or transferring the luggage to or from a luggage carousel in an airport or the like may require the luggage case to be lifted or carried. Any handles or grips for such purposes should be quite strong since each handle must support the weight of the luggage case when it is filled with a traveler's belongings. Also, for a structured soft-side luggage case, the panel to which the carry handle is attached must be sturdy enough to not significantly distort the shape of the case when the filled luggage is carried by the handle.
Another challenge for making such luggage cases is that the purchaser often lifts luggage cases when shopping for luggage to determine the sturdiness and weight of the luggage case. Of course these luggage cases on display in the luggage shop are empty. Also one measure used by luggage retailers and manufacturers to sell luggage is the empty weight of the luggage case expressed in kilograms or pounds. Thus, a criteria for buying a luggage case is the weight of the luggage case, even though the empty weight of the luggage case usually amounts to a small percentage of the weight of the case when packed for travel.
Also, when lifting the empty luggage case to judge its weight, the prospective luggage purchaser must decide whether the luggage construction is sturdy enough to withstand the rigors of travel. It is this conflict or dichotomy, the lightness of an empty luggage case and perceived robustness or durability of the case, that luggage manufacturers have grappled with for decades.
One embodiment of a luggage case may include a panel with a carry handle integrated therewith. The panel may include a generally flat sheet of flexible laminar body material that constitutes the bulk of the outside surface of the soft-side luggage case, The luggage case may further include a resilient hoop positioned around the perimeter of the panel. A resilient hoop may be firmly attached to the flexible laminar body material. In some embodiments, this body material is firmly attached to at least a majority of the hoop. Two side portions of the flat sheet may be reduced in dimension to form a handle grip located generally in the center of the sheet. Beneath this grip may be a second sheet of a flexible laminar material, preferably also of body material, affixed at its edges to the remaining portions of the perimeter wire hoop exposed by the narrowed portion of laminar body material that defines the handle grip.
Another embodiment of a luggage case may include a first panel. The first panel may include a perimeter edge. The first panel may define at least a portion of an outer surface of the luggage. The first panel may include a first textile body. The first textile body may define at least a portion of an outer surface of the first panel. The first textile body may further define at least a portion of the perimeter edge of the first panel. The first textile body may include a grip portion defining a grip for a carry handle.
Described herein are methods for making structured but essentially soft-sided luggage cases, and products created using such methods. These cases are usually formed from textile panels, leather panels or simulated leather panels. These cases may include other components, such as frames, boards, and so on, that are intended to hold the otherwise flimsy panels in a generally flat rectangular shape to form a luggage case with an overall parallelepiped shape. More particularly, described herein is a particularly lightweight construction for those panels that also serves to mount a carry handle for manually carrying or towing the luggage case during travel, etc. The construction methods include making rectangular, or other shaped, panels with integrated carrying handled for luggage cases, such as upright or spinner type cases, or the like (e.g., duffel bags, backpacks, and so on) where one mode for transporting the luggage case is to drag or push the luggage case on two or more wheels mounted on or next to the bottom panel of such luggage case. In constructing such panels, minimal or no rigid stiffening structures may be used to reduce to weight of the style luggage case. Such a light construction may contribute to the overall light weight of the empty case, while demonstrating that the case is robust and dimensionally stable.
In describing the components of the luggage and alternative versions, or embodiments, of some of these components, the same reference number may be used for elements that are the same as, or similar to, elements described in other versions or embodiments.
Turning to
Each side 105 of the luggage case 100 may be formed using one or more panels 130. In some embodiments, each side 105 of the luggage case 100 may be formed using a single panel 130. In other embodiments, two or more panels 130 may be used to form a side 105 of the luggage case 100. At least some of the panels 130 forming the sides 105 of the luggage case 100 may define at least a portion of the outer surface 135 of the luggage case 100. For example, with reference to
The luggage case 100 may further include carry handles 145 integrally joined with the one or more panels 130 that define the sides 105 of the luggage case 100. With reference to
The following description of forming the carry handle 145 on a panel 130 will be described with respect to the side panel 130a. However, this description should be understood as applicable for the top panel 130b, or any other panel 130, that incorporates an integral handle. With reference to
The side panel 130a may include the perimeter edge 140, an outer surface 160 and an inner surface 165. The perimeter edge 140 may define a rectangular shape, or any other desired shape. The outer surface 160 may be constructed using a first textile body 170 and a second textile body 175. The first and second textile bodies 170, 175 may be formed from a robust woven textile, such as nylon, polyester, Ramie or the like.
The first textile body 170 may be generally rectangular in shape, or any other shape that generally matches at least a portion of the shape defined by the perimeter 140 edge of the side panel 130a. A central or grip portion 180 of the first textile body 170 may define a relatively narrow band of material between first and second portions 185, 190 of the first textile body 170. The relatively narrow band of material defines the grip for the carry handle 145a. The first and second portions 185, 190 may be formed at end or outer portions of the first textile body 170. The central or grip portion 180 may be smoothly and integrally joined to the first and second portions 185, 190 of the first textile body 170 by way of curved edges. Each first and second portion 185, 190 of the first textile body 170 may widen from a relative narrow dimension proximate the central or grip portion 180 to the full width dimension of the generally rectangular side panel 130a.
In some embodiments, the central or grip portion 180 of the first textile body 170 defines a handle grip with a longitudinal axis that is relatively transverse to an edge defining the width of the first and second portions and/or the panel. Such a configuration is shown, for example, in
As shown, for example, in
In some embodiments, the first textile body 170 may formed using two or more pieces of textile material. For example, with reference to
The foregoing examples are merely illustrative of some ways that the first textile body 170 may be formed, and are not intended to limit how the first textile body 170 may be formed. Further, while described as being formed using one, two or three pieces of textile material, any number of pieces of textile material may be use to created the first textile body 170.
The first and second portions 185, 190 of the first textile body 170 may be joined to the edge beading 150. The first and second portions 185, 190 may be joined to the edge beading 150 by stitching the first and second portions 185,190 along at least a portion of their edges to the edge beading 150, or by using any other suitable connection method, including, but not limited to, adhering or bonding the first and second portions 185, 190 to the edge beading 150. This joining of the first and second portions 185,190 of the first textile body 170 to the edge beading 150 functions to operatively connect the first textile body 170 with the hoop 155.
The second textile body 175 may be generally square or rectangular in shape. The second textile body 175 may be positioned underneath the central or grip portion 180 of the first textile body 170. The second textile body 175 may include two edges, which may be referred to as first and second edges 200, 205, that each span the width of the first and second portions 185, 190 of the first textile body 170, and two other edges, which may be referred to as third and fourth edges 210, 215, that span at least the length of the central or grip portion 180 of the first textile body 170. In some embodiments, the third and fourth edges 210, 215 may end proximate the perimeter edge 140 of the side panel 130a. The first and second edges 200, 205 may be joined to the first textile body 170 by a suitable connection method, such as stitching or bonding. The third and fourth edges 210, 215 may be joined to the perimeter edge 140 of the panel 130a by a suitable connection method, such as stitching or bonding. Together, the first and second textile bodies 170, 175 may define substantially the entire outer surface 135 of the side panel 130a. Portions of the edges of the first and second textile bodies 170, 175 may also collectively define the perimeter edge 140 of the side panel 130a.
The inner surface 165 of the panel may be formed using a lining material 220. This lining material 220 may be a textile material that is fairly light and smooth to give a pleasing interior texture and finished look to the luggage case 100. The lining material 220 is not necessary from a structural standpoint. Thus, the lining material 220 may be omitted, if desired. In such embodiments, the first and second textile bodies 170, 175 may define the inner surface 165 of the side panel 130a.
Once constructed, the lifting force from the handle grip (i.e., the central or grip portion 180 of the first textile body 170) may transferred by way of the first and second portions 185, 190 of the first textile body 170 to the perimeter edge 140 of the side panel 130a. In particular, the lifting force may result in horizontal and vertical forces being imposed on the perimeter edge 140 of the side panel 130a. The horizontal forces may generally result in compressive forces applied along the longitudinal axes of the hoop 155. The vertical forces may generally result in the rest of the luggage case and its contents hanging from the hoop 155. Thus, the hoop 155 helps to minimize the distortion of the side panel 130a with the integrated carry handle 145a. This, in turn, helps to maintain the overall shape of the luggage case 100 when carried by the carry handle 145a. Both the horizontal and vertical forces applied to the hoop 155 may be relatively uniform, which may further help to minimize the distortion of the side panel 130a with the integrated carry handle 145a.
Because of the lack of further rigid structures under it, the panels 130 that incorporate the integrated carry handle 145 are relatively light. As a result of this construction, the prospective purchaser may perceive the luggage case 100 to be strong enough to withstand the rigors of travel, while also appreciating it as being lighter than conventional luggage constructions.
In some embodiments, a relatively rigid material, such as a polypropylene or polyethylene board, may be positioned under the first and second textile bodies 170, 175 to help maintain the shape of the panel 130. In such embodiments, the first textile body 170 may be joined to the relatively rigid material to transfer at least some of the forces imposed upon the carry handle 145 to the relatively rigid material. With reference to
With reference to
The third textile body 305 may include a grip portion 320 to define, in conjunction with the first textile body 170, the grip of the carry handle 145. The grip portion 320 for the third textile body 305 may correspond to, or otherwise match in shape, the grip portion 180 of the first textile body 170. The third textile body 305, like the first textile body 170, may further include first and second portions (not shown) with the grip portion 320 positioned between the first and second portions. The first and second portions of the third textile body 305, when present, may generally correspond to, other otherwise match, the shape of the first and second portions of the first textile body 170. In some embodiments, however, the first and second portions of the third textile body 305 may extend only under a portion of the respective first and second portions 185, 190 of the first textile body 170. In such embodiments, one or more edges of the first and second portions of the third textile body 305 may not extend to the perimeter edge 140 of the panel 130.
With continued reference to
With continued reference to
While the foregoing examples demonstrate some potential ways to construct the carry handle 145 using textile fabrics, these examples are intended only to be illustrative and not limiting. As such, other techniques or constructions may be used to create the carry handle 145 when formed using at least the first textile body fabric.
Additional materials or components may be placed between the first and third textile bodies 170, 305, if desired. These additional materials or components may be used to help maintain the shape of the carry handle 145, to provide additional structural support for the handle, or to enhance the comfort for a user.
As another example, a rigid or semi-rigid board 405, such as a high-density polyethylene (HDPE) board, may be positioned between the first and third textile materials 170, 305. The board 405 may extend from one end of the grip to the opposite end of the grip. Within the grip, the board may be shaped to correspond to the shape of the grip portions 180, 320 for the first and third textile bodies 170, 305. The board 405 may help to maintain the shape for the handle and/or may provide structural support for the handle. If desired, the board 405 may be mechanically fastened with fasteners (such as screws, rivets, and so on), or otherwise joined, to other underlying materials to maintain the relative position of the board to the first and third textile bodies 170, 305.
As yet another example, a rigid or semi-rigid plate 410, such as a steel plate, may be positioned between the first and third textile materials 170, 305. Like the board 405, the plate 410 may extend from one end of the grip to the opposite end of the grip. Also like the board 405, the plate 410 may help to maintain the shape for the handle and/or may provide structural support for the handle.
The foregoing examples are merely illustrative of some components or materials that may be positioned between the first and third textile bodies. Some or all of these materials may or may not be positioned between the first and third textile bodies. Further, other materials or components may or may not be positioned between the first and third textile bodies, such as cardboards, foams other than EVA foams, other fabrics, and so on. Further, in some embodiments, there may be no additional components or materials positioned between the first textile bodies.
Reducing the weight of the luggage may be further enhanced with other modifications to the luggage case 100. More particularly, the luggage case 100 may constructed of materials that further enhance its lightweight impression. For example, in contrast with conventional luggage cases, the down tubes 230 (shown in
Lastly, a higher quality steel may be used to form the thin perimeter wire hoops 155 around the carry handle-bearing panels and around the other panels 130 of the luggage case 100. This permits the diameter of that wire to be reduced, resulting it in a further incremental weight saving. Other materials and constructions may also be used to make the hoop 155, such as an extruded polymer bent into the hoop shape during extrusion or in a post-forming step. The hoop 155 may also be made of one piece, such as by injection molding or stamping from a preformed sheet so long as the sheet panel is sufficiently stiff to resist collapse when subjected to the pulling forces from the first textile body attached to the perimeter of the stiff panel. Alternately, the perimeter hoop could be made of different separate pieces (e.g., injection molded corners with straight pultruded sides).
The above-described constructions may reduce the weight of the upright luggage case compared to conventionally constructed luggage cases. In particular, all things being equal, it is believe that the incorporating a handle into a textile body that forms at least a portion of the outer surface of a panel (e.g., a side panel and/or a top panel) may contribute to a substantial weight saving over an equivalently sized but conventionally constructed case with rigidifying perimeter or corrugated or honeycomb frame members.
All directional references (e.g., upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are only used for identification purposes to aid the reader's understanding of the embodiments of the present invention, and do not create limitations, particularly as to the position, orientation, or use of the invention unless specifically set forth in the claims. Connection references (e.g., attached, coupled, connected, joined, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. As such, connection references do not necessarily infer that two elements are directly connected and in fixed relation to each other.
In some instances, components are described with reference to “ends” having a particular characteristic and/or being connected with another part. However, those skilled in the art will recognize that the present invention is not limited to components which terminate immediately beyond their points of connection with other parts. Thus, the term “end” should be interpreted broadly, in a manner that includes areas adjacent, rearward, forward of, or otherwise near the terminus of a particular element, link, component, part, member or the like. In methodologies directly or indirectly set forth herein, various steps and operations are described in one possible order of operation, but those skilled in the art will recognize that steps and operations may be rearranged, replaced, or eliminated without necessarily departing from the spirit and scope of the present invention. It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes in detail or structure may be made without departing from the spirit of the invention as defined in the appended claims.
The present application is a continuation of co-pending U.S. application Ser. No. 12/908,761 (the “'761” Application), now U.S. Pat. No. 8,636,123, entitled “Luggage Panel With Integrated Carry Handle For Soft-Side Type Luggage Cases”, and filed on Oct. 20, 2010, which claims the benefit under 35 U.S.C. § 119(e) to U.S. provisional application No. 61/253,242 (the “'242” Application), entitled “Lightweight Top and Side Panel Carry Handle Construction for Soft-Side Type Luggage Cases” and filed on Oct. 20, 2009. The '761 and '242 Applications are hereby incorporated herein by reference in their entireties.
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Number | Date | Country | |
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Parent | 12908761 | Oct 2010 | US |
Child | 14151556 | US |