The field of the invention relates generally to towable baggage items having casters for rolling the baggage along the ground, and more particularly, to hardsided luggage pieces having casters.
Various types of luggage items, commonly referred to as baggage or bags, are commonly available in hardside and softside constructions, each having its own pros and cons from a manufacturer's perspective, as well as from a user perspective. Improvements are desired, particularly in hardsided luggage constructions.
Various types of bags, from luggage items to briefcases and backpacks, also now include wheels and a towing handle which allow the bags to be pushed or pulled along a surface rather than being carried above the ground. The towing handle is typically located on an end of the bag opposite the wheels, and the bag is movable along the ground on the wheels without lifting the bag from the ground. Such towable baggage items can be very convenient and are now popular. Towable bags are, however, disadvantaged in some aspects and improvements are desired.
Non-limiting and non-exhaustive embodiments are described with reference to the following Figures, wherein like reference numerals refer to like parts throughout the various views unless otherwise specified.
Certain improvements in baggage construction to provide luggage pieces and the like are described herein. In order to understand the invention to its fullest extent, a discussion of the state of the art and some of its issues is first presented below, followed by description of exemplary embodiments of luggage items implementing the inventive concepts. Inventive method aspects of implementing the inventive features described and/or using the inventive features described are in part apparent and in part explicitly discussed in the description below.
Hardside and softside luggage pieces each have devoted followings in the traveling public. Frequent travelers have reasons to like each of them, so deciding whether to purchase one or the other can sometimes be a difficult choice.
Traditional hardside luggage pieces such as suitcases generally include front and rear shells or frames connected to one another with a closure element such as central zipper. Each of the front and rear shells defines an interior volume, sometimes referred to as a compartment, for containing items packed therein. The central zipper typically extends around the periphery of the front and rear shells with the front and rear shells being joined to one another along one side, typically by a hinge. The central zipper is positionable in a first position to join and secure the front and rear shells together and close the case, or in a second position allowing the front and rear frames to be separated and folded open along the hinge.
The front and rear shells of hardsided luggage pieces are fabricated from a generally lightweight but structurally rigid material and are preferred by some travelers over other commonly available softsided luggage items having relatively soft and flexible frame constructions. Hardsided bags are not without their drawbacks, however.
For example, the central zipper opening between the first and second shells in conventional hardsided luggage pieces provides the only access to pack items into the case in conventional hardsided suitcase construction. Consequently, the traditional central zipper means that users must pack each half of the case separately from one another. That is, the compartments defined by the front and rear shells are packed separately while the case is opened. This is not always convenient, however, or preferred.
Softsided luggage items generally include a main body and a front flap joined to one side of the main body and closeable with a zipper. The front flap may be configured with interior and exterior pockets. Small items can be conveniently packed and stored in the front pockets of the flap, while other larger items may be separately packed and stored in the larger main body of the luggage piece. Softside luggage pieces may therefore be considered by some to be more convenient and easier to pack, especially when small items can be packed and retrieved from the interior pockets in the front flap without disturbing items packed in the main body.
Hardsided luggage constructions exist that incorporate interior front pockets that are hinged from the bottom side on the interior of the front shell. While such front pockets accept small items, access to the pockets via the bottom hinge is not as familiar to most users as a hinge on one of the vertical sides as consumers have grown to like in softsided luggage designs. Thus, use of such pockets, especially in constrained spaces can be awkward because one has to access the pocket from the top side of the bag. As users tend to open the bag with the bottom side closest to them, the bottom hinged packets can be inconvenient to use.
Hardside case constructions also exist that include an exterior front pocket attached to an indented portion of the front shell of the case. Such front case pockets, however, reduce the capacity of the case to be packed with items.
The rear shell 104 defines an opening or receptacle having a first internal volume for packing of items therein, sometimes referred to as a main compartment or rear compartment. The shell pieces 106 and 108 of the front shell 102, in combination, define a second internal volume or area for packing items, sometimes referred to as a front compartment, that is smaller than the first volume of the rear shell 104. As shown in
The first and second shell pieces 106 and 108 of the front shell 102 are attachable by a zipper closure element 128, and thus are independently operable in combination as desired. From a closed position, the rear shell 104 and the first shell piece 106 of the front shell 102 may be opened, without opening the second shell piece 108, to provide full, unobstructed access to the rear shell 104 for packing or unpacking the main compartment.
Alternatively, when the rear shell 104 and first shell piece 106 of the front shell 102 are closed, a user may open the second shell piece 108 of the front shell 102 via the zipper element 128 to access the front compartment only. If desired, the user may then open the flap 118 via the zipper element 120 to access the pass-through opening 122 and the main compartment in the rear shell 104. Convenient options are therefore provided for a user to access the items in the rear shell 104 in more than manner.
Moreover, the pocket 116 in the flap 118 provides additional storage for conveniently storing smaller items without having to access the rear shell 104 or the main compartment at all. That is, even when the flap 118 is closed via the zipper element 120, the pockets 116 and 114 are still accessible when the second shell piece 108 is opened via the zipper element 128.
All the movable shell pieces 104, 106, 108 and the flap 118 in the case construction are attached along a vertical hinge at the left side of the case as shown in
In the example shown, the second or front shell piece 108 and the intermediate or first shell piece 106 of the front shell 102 have a tapered shape that facilitates optimal storage while still providing convenient pockets and adequate storage area for larger items inside the case 100. In particular, the front or second shell piece 108 has a wedge-like shape that is wider at the top edge than at the bottom edge in the depiction of
With the interior front pockets 114 and the forward facing pocket 116 in the flap 118, users are afforded quick access to smaller items like they would with a softside case, yet still have the benefits of a rugged construction in a hardsided shell construction, and also still have easy and convenient access to the main luggage compartment in the rear shell 104 when desired. The pass-through opening 122 from the front compartment in the front shell 102 allows users the option to pack the case entirely from the front like they would with a softsided case. The luggage piece 100 accordingly includes some of the most desirable elements of hardside and softside construction in a single piece.
While the luggage piece 100 shown and described is configured as suitcase that may in some embodiments be a qualifying carry-on piece of luggage that may be brought aboard an airplane, a variety of bags in different shapes and sizes may alternatively be provided with similar features. Further, while the luggage piece 100 is shown in a suitcase configuration, other baggage configurations are possible to transport the same or different items that a user would typically carry in a suitcase. The convenience of the split front shell construction and various features described above are not limited to the particular bag configuration shown, and may accordingly be desirable and well-liked in other types of bags.
As shown in
Luggage on casters 150 are desirable in that the casters 150 offer nearly unlimited directions of movement with very little effort of a person to move them compared to more traditional two-wheeled luggage designs that are more difficult to move and turn. One drawback of conventional caster systems for towable luggage, however, is that they don't have a natural resting position like traditional two-wheeled luggage design that may rest on their bottom surfaces without the wheels, located only on the rear side, being able to roll and perhaps not even in contact with the ground when the body of the bag is not inclined relative to the ground. As such, luggage with casters 150 can be problematic if the user wishes to stop the luggage on a surface that is not level. Conventional bags with casters may tend to roll away in such circumstances.
Certain types of luggage items having casters equipped with braking systems do exist that are intended to solve roll away luggage problems that casters can sometimes present, but their actuation often requires the user to bend down, nearly to the ground or floor, to engage or disengage them. The engagement or disengagement of the caster brake may also involve levers and rotary actuators that are not intuitive to operate for many users. Because of this, they can be frustrating and confusing to at least some users who might think that the brake is engaged when it isn't, or alternatively when the brake has become inadvertently engaged and the user cannot quickly see how to disengage it.
Additionally, known luggage having casters and braking systems are designed for single wheeled casters. Dual casters (i.e. casters having two wheels), however, are preferred for their greater stability. Braking systems designed for single wheeled casters are not compatible with dual casters.
Finally, certain luggage pieces with casters and braking systems include a pin that is pressed into engagement with the outside of the caster wheel. If the caster wheel is wet or dirty, as is sometimes inevitable while traveling, such brake systems may be generally ineffective. Such brake systems that operate externally on a caster can also present reliability issues as they are susceptible to damage as the bag is handled by, for example, airport personnel.
The luggage piece 100 therefore includes a caster brake system 200, as shown in
As shown in
The subassembly 202 also includes a wheel housing 212 that may be mounted to the caster housing 204 using known fastening techniques. The wheel housing 212 includes an attachment portion 216 configured for attachment to the caster housing 204, and a caster shaft 218 extending downwardly from the attachment portion 216. The caster shaft 218 includes a slot or ring 220 that interfits in a keyed arrangement with a caster pivot housing 222. The wheel housing 212 may be formed from suitable materials known in the art, such as plastic or metal, according to known techniques.
The castor pivot housing 222 has a pivot portion 224 formed with a bore that accepts the wheel housing caster shaft 218 with, for example, snap-fit engagement. The bore may be formed with a projection that lockingly engages the slot 220 of the wheel housing caster shaft 218. When the wheel housing caster shaft 218 is engaged to the castor housing pivot portion 224, the castor pivot housing 222 is rotatable on the shaft 218 about a vertical axis 225 that coincides with a corresponding axis of the shaft 218.
The castor pivot housing 222 also includes a wheel mount portion 226 having a through hole bore 228 for mounting of a first and second caster wheels 230, 232 with an axle 234 extending through the bore 228 and corresponding central openings in a hub of each wheel 230, 232. Fasteners 238, 240 are provided to secure the axle 234 and the wheels 230, 232 in place. When assembled, each wheel 230, 232 is freely rotatable about a horizontal axis 242 coincident with an axis of the axle 234.
Each caster wheel 230, 232 includes an inner facing perimeter surface 242 that is configured with a brake surface such as teeth in one example. The teeth on the inner facing perimeter surface 242 face the castor pivot housing 222 and are spaced from the wheel tread in each wheel 230, 232. When the caster 150 is assembled, the brake surface formed on the inner facing perimeter 242 is thus protected to a large extent from water and dirt that the wheel treads may encounter as the casters are used to tow or push the luggage piece 100 along the ground.
The subassembly 202 also includes a brake shaft 244 and brake pad 246. The brake shaft 244 extends through an internal bore in the caster housing pivot portion 224 and also through a center bore formed in the wheel housing shaft 218. The brake pad 246 attaches to a lower end of the brake shaft 244 and has opposing curved brake surface 248a, 248b. When the brake pad 244 is attached to the brake shaft 244, the brake shaft 244 is movable up and down along the vertical axis 225 to engage and release the brake pad surfaces 248a, 248b with the brake surfaces of the inner facing perimeter 242 of each respective wheel 230, 232. The pad brake surfaces 248a, 248b may include teeth that mesh or mate with teeth provided on the brake surfaces of the wheel inner facing perimeters 242. In other embodiments, other types of mating brake surfaces may be utilized. The teeth as shown and described are exemplary only.
The brake shaft 244 and the brake pad 246 may be made from metal or other suitable materials known in the art. The brake pad 246 may be overmolded with a plastic material in some embodiments to mesh with the brake surfaces of the caster wheels 230, 232.
The brake lever 252 pivots about a pivot pin 270 extending in the lever housing 254 and into the pivot bore 260. The first end 257 of the lever 252 is coupled to the brake cable 256. The second end 258 of the lever 252 is attachable to the upper end of the brake shaft 244 (
The lever housing 254 may be fabricated from plastic and forms a protective enclosure for the brake lever 252 and its attachment to the brake cable 256.
The brake system 200 is operable as follows. When the switch lever handle 304 is moved upwardly, the brake cable 256 is pulled upwardly in the same direction, causing the brake cable to lift the first end 257 (
When the switch lever handle 304 (
The bias spring 262 (
The housing 302 and the switch lever handle 304 (
The switch lever handle 304 is simple and intuitive to use. It is also easy to visually identify whether the brake pad is engaged or not by observing the position of the switch lever handle 304. The switch lever handle 304 is only one exemplary element capable of moving the brake cable 256 to provide the functionality described. Other actuation schemes are possible.
The brake system 200 provides a relatively simple and low cost brake assembly for dual wheel casters. The mechanical components of the brake system 200 are interior to the bag construction and interior to the caster assembly. As such, the brake system 200 is highly reliable and unlikely to be damaged as the bag is handled. Because the wheel brake surfaces are on the inside of each wheel in the caster assembly, the brake assembly works reliably regardless of what conditions the wheel tread may have been exposed to.
More than one brake assembly may be provided in the brake system 200 to operate on more than one of the casters 150 of the luggage piece 100. Multiple brake assemblies may be operated by the same or different switch lever handle 306 that is connected to more than one brake cable 256.
Adaptations of the brake system 200 are possible in one or more of the subassemblies described in relation to
For example,
The provision of a simple bar 322 may also provide a simpler assembly from a manufacturing perspective in comparison to curved engagement surfaces 248a, 248b described earlier in relation to the brake surfaces 248a, 248b.
Except for the bar 322 in lieu of the brake surfaces 248a, 248b the operation of the brake system 200 is similar to that described above. The subassembly 320 shown in
While the brake systems are illustrated in the context of the luggage piece 100, it may be implemented on other luggage pieces wherein dual wheel casters are desirable. Moreover, the brake mechanism described is not necessarily limited to luggage items at all. The exemplary luggage item 100 is shown and described for purposes of illustration rather than limitation. Any item using casters for similar purposes and/or presenting similar problems may benefit from the caster brake assembly described.
In certain embodiments, the brake assembly may also be modified to operate on a single wheeled caster. While the dual wheel casters are sometimes preferred for the reasons noted, single wheeled casters may also benefit from the brake mechanism described herein.
The benefits of the invention are now believed to have been amply illustrated in view of the exemplary embodiments disclosed.
An embodiment of a hardsided luggage piece has been disclosed including: a rear shell fabricated from a rigid material and defining a rear compartment for packing of items therein; a front shell joined to the rear shell, the front shell fabricated from a rigid material and defining a front compartment for packing of items; and a first closure element to detachably couple the rear shell and the front shell to one another; wherein the front shell comprises: a first shell piece and a second shell piece joined by a hinge; the first shell piece being intermediate the rear shell and the second shell piece; the first shell piece defining a pass through opening to the rear compartment in the rear shell; and a second closure mechanism configured to detachably couple the first and second shell pieces to one another, wherein the first closure mechanism and the second closure mechanism are independently operable from one another.
Optionally, the front compartment may be smaller than the rear compartment. The second shell piece may include an interior side, and at least one pocket accessible via the interior side. A flap may be joined to the first shell, and the flap may include a pocket structure.
The hardsided luggage piece may also include a third closure mechanism operable to detachably couple the flap to the first shell piece, the third closure mechanism independently operable from the first and second closure mechanisms. At least one of the first, second and third closure elements may be a zipper closure element.
The first and second shell pieces may be attached along a vertical hinge of the luggage piece. The luggage piece configured as a suitcase. The second shell piece may have a tapered shape. The second shell piece may include opposing first and second edges and a wedge-like shape that is wider at the first edge than at the second edge. The second shell piece may include a flat exterior front surface, and the pass-through opening may be angled with respect to the flat exterior front surface. The luggage piece may be configured as a carry-on piece of luggage.
The luggage piece may be configured as a towable piece of luggage including at least one wheel. At least one of the rear shell and the front shell may include at least one caster. The caster may include a dual wheeled caster. The hardsided luggage piece may include a brake system for the at least one caster.
The second shell piece may include at least one caster. The caster may be a dual wheeled caster. The hardsided luggage piece may include a caster brake system operable to lock the at least one dual wheeled caster in a stationary position.
An embodiment of a caster brake system has also been disclosed, including: at least one caster wheel provided with an inner brake surface; a brake element selectively positionable to engage or disengage the inner brake surface of the at least one wheel, wherein the at least one caster wheel is locked in a stationary position when the brake element is engaged and wherein the at least one caster wheel is freely rotatable when the brake element is disengaged; a brake lever mechanically linked to the brake element; a cable connected to the brake element; and a handle connected to the cable and movable between a first position and a second position, wherein when the handle is moved to the first position the brake lever causes the brake element to descend and engage the inner brake surface of the at least one wheel.
Optionally, the inner brake surface may include teeth on an inner facing perimeter surface of the at least one wheel. The brake element may include at least one brake pad having a curved brake surface configured to mesh with the inner brake surface of the at least one caster wheel. The brake lever may be biased to a position where the brake element is disengaged.
The caster brake system may also include a brake shaft, the shaft having a first end and a second end, the first end of the brake shaft coupled to the brake element, and the second end of the brake shaft coupled to the brake lever. The caster brake system may also include a pivot housing, the brake shaft extending through the pivot housing, and the at least one wheel attached to the pivot housing. The at least one caster wheel may include a first wheel and a second wheel each having an inner brake surface, each of the first wheel and second wheel attached to the pivot housing. The brake element may be selectively positionable to engage or disengage the inner brake surface of each of the first when and the second wheel.
The brake element may include a brake pad having first and second curved brake surfaces for respective engagement with the inner brake surface of each of the first and second wheel. The caster brake system may also include a wheel housing, the brake shaft further passing through the wheel housing. The caster brake system may also include a caster housing, the caster housing defining a caster recess accepting the wheel housing.
The caster brake system may be provided in combination with a piece of luggage. The piece of luggage may be one of a hardside and a softside piece of luggage. The piece of luggage may configured as a carry-on piece of luggage. The piece of luggage may be configured as suitcase.
The brake lever may be pivotally mounted at a location between the at least one wheel and the handle. The brake lever may be L-shaped. The brake system may be coupled to a piece of luggage. The piece of luggage may be fabricated with one of a hard side and soft side construction. The handle may be located on one of an upper external side piece of the luggage piece, a handle assembly for the luggage piece, and an extendable towing member.
The at least one caster wheel may be mounted on a piece of luggage.
An embodiment of a luggage piece has also been disclosed and includes: a rear shell fabricated from a rigid material and defining a rear compartment for packing of items therein; a front shell joined to the rear shell, the front shell fabricated from a rigid material and defining a front compartment for packing of items; a first closure element to detachably couple the rear shell and the front shell to one another; wherein the front shell comprises: a first shell piece and a second shell piece joined by a hinge; the first shell piece being intermediate the rear shell and the second shell piece; the first shell piece defining a pass through opening to the rear compartment in the rear shell; and a second closure mechanism configured to detachably couple the first and second shell pieces to one another, wherein the first closure mechanism and the second closure mechanism are independently operable from one another; and a caster brake system, comprising: at least one caster wheel provided with an inner brake surface, the at least one caster wheel mounted to one of the rear shell and the front shell; a brake element selectively positionable to engage or disengage the inner brake surface of the at least one wheel, wherein the at least one caster wheel is locked in a stationary position when the brake element is engaged and wherein the at least one caster wheel is freely rotatable when the brake element is disengaged; a brake lever mechanically linked to the brake element; a cable connected to the brake element; and a handle connected to the cable and movable between a first position and a second position, wherein when the handle is moved to the first position the brake lever causes the brake element to descend and engage the inner brake surface of the at least one wheel; wherein the handle is located on an upper external side of one of the rear shell and front shell, a handle assembly for the luggage piece, and an extendable towing member.
This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the invention is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 61/789,657 filed Mar. 15, 2013, the disclosure of which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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61789657 | Mar 2013 | US |