1. Field of the Invention
This invention relates to wheeled carts and, more particularly, to a method of transporting discrete articles in containers using such a cart.
2. Background Art
Modern shopping malls are configured to allow shoppers to walk from one store to the next and progressively accumulate purchases. To facilitate this, containers/bags are offered to the consumers, each into which one or a plurality of discrete articles can be placed. The containers/bags may be made from paper or plastic and are commonly provided with some handle structure that can be gripped in the hand of a user. For example, plastic bags are commonly made with a cutout into which a user's fingers can be directed so as to surround a length of the plastic in a gripping fashion. Paper bags may be equipped with paper, plastic, or string handles for this same purpose.
Consumers are allowed to grasp handles on a number of such containers/bags with each hand and transport them relatively comfortably with the arm(s) in a lowered position. There comes a point when the number of purchases makes it impractical to continue to shop. The accumulation of containers/bags may become too heavy or so bulky as to interfere with further enjoyable shopping. This situation normally leads to one of two events. The shopper may end up shopping in stages, accumulating containers/bags to a certain extent and then returning them to a parked vehicle, whereupon the shopping is resumed. Alternatively, the consumer may call off the shopping trip, to be continued at another time. The former represents a significant inconvenience, particularly when cars are parked distant from the last visited store. The latter may cause consumers to forego purchases that would otherwise be made had they been able to continue shopping in a single trip.
Aside from the problem of ultimately having to transport the container/bags home or to a vehicle, during the shopping process, the consumer is required to repeatedly place the container/bags down to allow inspection of other articles for potential purchase. By repeatedly putting the containers/bags down and elevating them, the user taxes his/her knees, back, neck, shoulders, and hands. This detracts from the shopping experience and could even lead to an injury. Also, there is the risk that when the bags are put down and elevated they may be reoriented in a manner that articles therein may fall out. Thus, one contends with the problem of re-packing the containers/bags and also of risking loss of articles.
Additionally, aside from carrying the container/bags, the consumer generally has on his/her person purses, cell phones, drinks, etc. The consumer must devise ways to also hold all of these articles in a comfortable manner that allows a continuing enjoyable shopping experience.
It is known to use portable and collapsible shopping carts to store and transport a number of containers/bags. The most common construction utilizes a wire basket with a relatively large wheel base and an integrally formed, U-shaped handle that opens downwardly and/or rearwardly with respect to a travel direction. The basket defines an upwardly opening receptacle into which the containers/bags and/or loose articles can be placed for storage. While this type of cart allows a user to potentially transport a large number of container/bags, this cart construction has a number of drawbacks.
First of all, the cart normally has a fixed width and is collapsible to reduce its dimensions only in a fore-and-aft direction. The width is generally approximately equal to the dimension of the wheel base, which may be relatively large to afford stability in use. If the user wishes to transport the empty cart, it is either carried in an elevated position or rolled over an underlying surface. It may be inconvenient or impractical to navigate the cart within crowds and in relatively narrow shopping aisles by rolling the cart. The same problem exists with the cart in an operative state in which the basket is configured to its largest volume.
By reason of its size, the cart also may be intrusive in a storage state within a vehicle and/or in a user's home.
The wire basket also has some inherent drawbacks. By reason of the fact that the-containers/bags are deposited in the upwardly opening receptacle, they may reconfigure, as a result of which the contents thereof may potentially shift and escape not only from a container/bag, but from the basket through openings in a mesh material normally bounding the basket container.
The configuration of these carts is such that items must be stacked, one upon the other. In the event items are fragile, they are prone to being broken or damaged.
Further, one or more large items may alone fill the receptacle, in which event additional items may have to be individually carried by hand. If a single large item does not fit in the receptacle, the user is required to separately transport the cart and the item.
This type of cart normally is designed to be pivotable about the wheel axis between stored and operative states. In the former state, the cart pivots under the weight of the contents in a rearward direction. The user is required to grasp the operating handle, typically with both hands, and pivot the entire cart around the wheel axis in a forward direction before the cart can be moved. Depending upon the distribution of weight within the basket container, this pivoting action may be awkward or difficult to effect.
Further, in light of the relatively large wheel base, the cart, particularly in a loaded state, may be difficult to maneuver in tight spaces and within crowds. A turning radius may be sufficiently large that a user may have to steer the cart by lifting or sliding it, rather than by merely rolling the same.
This type of cart is normally made from metal components, including formed wire of relatively small gauge. Metal components are prone to rusting. Additionally, the wire components are prone to being bent or broken and also present sharp edges that may injure a user and/or hang up on his/her clothing. Metal components are also generally relatively expensive and introduce costs that must be passed on to the end user.
The industry continues to seek out alternative cart designs that facilitate convenient storage and transportation of purchased articles, while addressing one or more of the above problems.
In one form, the invention is directed to a method of transporting articles. The method includes the steps of: providing a cart; placing at least one article in a container/bag having at least one downwardly facing edge; placing the container/bag with the at least one article therein in a hanging position on the cart; and applying a moving force to the frame to reposition the cart with the container/bag thereon. The step of providing a cart involves providing a frame with a top, a bottom, a wheel assembly on the frame and having at least one wheel that can be rolled against an underlying surface, and a hanging assembly. The frame is repositionable between a first storage state and an operative state. With the container/bag in the hanging position, the at least one downwardly facing edge bears against a part of the hanging assembly so that at least a part of the combined weight of the at least one article and container/bag is supported by the hanging assembly. The container/bag with the at least one article therein is suspended above the underlying surface with the frame in the first stored and operative states. The moving force applied to the frame causes the at least one wheel to roll against the underlying surface and the cart and container/bag with the at least one article therein to be repositioned relative to the underlying surface with the cart in the operative state.
The hanging assembly may include an elongate rod that projects in cantilever fashion from the frame.
In one form, the elongate rod has a length and a plurality of discrete receptacles spaced along the length of the elongate rod, each for receiving at least one downwardly facing edge on a container/bag.
The method may further include the step of repositioning the elongate rod relative to the frame between an extended position and a stored position.
In one form, the frame has a receptacle that is configured so that in repositioning the elongate rod between the extended position and stored position, the rod is moved into the frame receptacle.
The cart may further have a graspable handle. The method may include the step of grasping the graspable handle with at least one hand so that the moving force is applied through the graspable handle with the at least one hand grasping the graspable handle.
The frame may have a receptacle for the graspable handle that is moveable between a grasping position and a stored position. As an incident of changing the graspable handle between the grasping position and stored position, the graspable handle is moved into the frame receptacle.
The cart may further include a stabilizing assembly with at least a first stabilizer that abuts to a container/bag in the hanging position to thereby support the container/bag in conjunction with the hanging assembly.
In one form, the frame has a front, a rear, and laterally spaced sides. The elongate rod projects in cantilever fashion rearwardly from the frame. The method may further include the step of repositioning the first stabilizer from a stabilizing position, wherein the first stabilizer projects from the frame in cantilever fashion, into a stored position wherein the first stabilizer is moved from the stabilizing position into the frame receptacle.
The stabilizing assembly may further include a second stabilizer, with the first and second stabilizers projecting in cantilever fashion in opposite directions away from the frame.
The wheel assembly, in one from, consists of first and second spaced wheels between which the frame resides.
In one form, the wheel assembly includes at least one wheel having a rotational axis. The step of repositioning the frame between the first storage state and operative state is effected by moving the frame around the rotational axis.
In one form, the frame has an abutting surface that abuts to the underlying surface to thereby consistently maintain the frame in the first storage state.
In the first storage state, the frame has a vertically extending portion and an offset portion extending rearwardly from the vertically extending portion and defining the abutting surface.
In one form, the front of the frame has a curved shaped where the vertically extending portion blends into the rearwardly extending offset portion. In one form, the frame consists of first and second parts that are relatively repositionable. The method may further include the step of relatively repositioning the first and second frame parts between an assembled state, wherein the frame has a first a vertical dimension with the frame in the first storage state, and a storage state wherein the frame has a corresponding second vertical dimension that is less than the first vertical dimension.
The first and second frame parts may be relatively repositioned by separating the first and second frame parts, each from the other.
The method may further include the steps of releasably securing the first and second frame parts together in the collapsed state.
The cart may include at least one lockable ring for securing an object to the frame.
The frame may have a holder with a receptacle for at least one of: a) cellular telephone; b) a PDA; c) a drinking bottle; and d) a drinking cup.
In one form, the cart frame has a shape that simulates the appearance of an animal with a tail that is defined by the rearwardly extending offset portion.
The frame has laterally spaced sides and a first width between the laterally spaced sides. In one form, the wheel assembly has first and second wheels rotatable around a laterally extending axis and having a second width. The first frame width resides within the second width.
In one form, the second width is not greater than 15 inches.
In
The cart 10 is shown schematically in that it is contemplated that virtually a limitless number of different configurations of frame 12, wheel assembly 14, and hanging assembly 18 might be devised consistently with the teachings herein. As just one example, the wheel assembly 14 may consist of a single wheel 16 or two or more wheels 16.
The method of transporting articles, according to the present invention, involves a series of steps, as shown schematically in
One specific form of the cart 10 is shown in
The frame 12, in the solid line storage state of
The wheel assembly 14 consists, in this embodiment, of a pair of laterally spaced wheels 16 rotatable about a common axis 44 (
The frame 12 is pivotable about the axis 44 between positions wherein it resides in its operative and separate storage states. With the frame 12 in, or near, the solid line, storage state shown in
The hanging assembly 18, which is adjacent to the top 32 of the frame 12, consists of an elongate rod 52 that projects in cantilever fashion from the frame 12 in a rearward direction. The elongate rod 52 has a series of upwardly opening, generally U-shaped, discrete receptacles 54 spaced along the length thereof. The number and shape of the receptacles 54 are not critical to the present invention. It is contemplated that each receptacle 54 be capable of accommodating at least one container/bag 20.
More particularly, exemplary containers/bags are shown at 20 and 20′ in
The container/bag 20′ has a similar conventional construction with a peripheral wall 58′ bounding a storage space 60′ for an article 62. Instead of the cut out 64, the container/bag 20′ has a pair of separately attached, U-shaped handles 72 (one shown) which can be surroundingly grasped by a user. In so doing, the user's hand engages a generally downwardly facing edge 74 on each handle 72. The handles 72 and peripheral wall 58′ cooperatively surround an opening 76 through which the user's hand is directed to grasp the handle 72.
In operation, the containers/bags 20, 20′ and cart 10 are relatively repositioned so that the elongate rod 52 projects through the cutout 64 or opening 76, as shown in
Normally, the user will initially place the cart 10 so that the frame 12 is in the solid line, storage state of
As noted previously, the operative state of the frame 12 includes a range of angular positions therefor between the storage states shown in
To facilitate repositioning of the frame 12 and movement of the cart 10, a graspable handle 86 is provided at the top 32 of the frame 12 and projects upwardly and forwardly with the frame in the solid line, storage state of
Since the elongate rod 52 has a limited lateral dimension D (
With the above-described structure, the user can conveniently load a plurality of containers/bags 20, 20′ in a hanging position upon the hanging assembly 18 with the frame 12 in the solid line storage state of
Additional features of the cart 10, which add further versatility, will now be described. As seen in
A mechanism 112 is provided, acting between the frame 12 and elongate rod 52, to potentially allow the rod 52 to be releasably fixed in a plurality of different angular positions within the pivoting range identified by the angle θ, which may be on the order of 100°. The mechanism 112 may also releasably lock the elongate rod in the stored position therefor.
A forwardly opening receptacle 114 is provided at the top 32 of the frame 12 to accommodate the graspable handle 86. The graspable handle 86 is selectively pivotable between a grasping position, as shown at E in
Receptacles 118, 120 are provided in the frame 12 and are complementarily curved to match the shape of the stabilizing elements 102, 104 and open laterally oppositely to each accept one of the stabilizing elements 102, 104. Exemplary stabilizing element 102 can be pivoted from its stabilizing position in the direction of the arrow 122 in
A suitable mechanism 130, of a type well known to those skilled in the art, may act between at least one of the stabilizing elements 102, 104 and frame 12, thereby releasably maintain the same in the stored and/or stabilizing position and potentially positions therebetween.
By reason of being able to place the elongate rod 52, graspable handle 86 and stabilizing elements 102, 104 each selectively in a stored position, the frame 12 can be compacted, as shown in
To further compact the cart, the frame 12 can be made with two relatively repositionable parts 132, 134, as seen most clearly in
The parts 132, 134 in are repositionable relative to each other in pivoting movement about a laterally extending axis 136 defined by a pin 138 that engages the lower region of the frame part 134 and upper region of the frame part 136 at a mid-height location on the frame 12 with the frame 12 in the assembled and operative state of
With the frame 12 in the assembled state of
Alternatively, as shown for another embodiment for the cart 10′ in
To releasably maintain the connection between the parts 132′, 134′, one or more spring-biased studs 147 are employed. The studs 147 are located on the male component 146 and project through a like number of openings 148 in the lower part 132′. The parts 132′, 134′ are released by depressing the studs 147. With the upper and lower parts 132′ and 134′ connected, the studs 147 are spring-loaded outwardly into the openings 148, thereby to releasably lock the connection of the parts 132′, 134′.
The frame 12′ is collapsed by separating the parts 132′, 134′ through opposite force application along the line of the double-headed arrow 149, which parts thereafter may be releasably joined together in a collapsed/stored/storage state (storage state), as shown in
The pin connector 151, normally stored by being directed through a bore 155 in the upper part 134′ as shown in
The pin connector 150 has a shank 158 with fixed heads 160, 162.
By aligning the head 162 at the opening 152 with the frame parts 132′, 134′ separated, the frame parts 132′, 134′ can be moved towards each other to the
The pin connector 151 has detent elements 164 (one shown in
In the storage state, the rear edge 166 on the frame upper part 134′ bears against a shoulder 168 defined by an enlargement 169 on the rearwardly extending offset portion 38 that defines the abutting surface 42. This further stabilizes the connected parts 132′, 134′ in their storage state. The cart 10′ in
As seen in
In both embodiments, the frame body has a substantially uniform thickness identified at D2, fully between the top and bottom thereof. Accordingly, the frame 12 can be made compact in nature. As shown from the exemplary cart 10, the wheels 16 each has an axial dimension D3 (
The collapsed frame 12, as seen in the storage state in
With the cart 10′ in the storage state, the frame parts 132′, 134′ are placed facially side-to-side to reside within a width dimension D6 that is equal to approximately twice the width dimension D2 and substantially less than the width dimension D5. Thus, the cart 10′ is significantly reduced in its perimeter volume, which represents the minimum volume bounded by spaced and parallel, orthogonal plane pairs within which the cart 10 can be contained.
The frame 12 and parts attached thereto on the cart 10 are uniquely shaped to simulate in this case the appearance of an animal with a tail. That is, the vertically extending portion 36 has a shape that simulates the body of an animal with a head at the top thereof, with the rearwardly extending offset portion 38 simulating the appearance of a tail. By reason of the part of the elongate rod 52 being exposed in its stored position, the receptacles 54 give the appearance of a serrated-type backbone. The opening 152 is strategically located to simulate the appearance of an eye.
For added convenience, additional components may be provided on the frame. For example, locking rings 174, 176 are shown on the frame 12 in vertically spaced relationship to secure in place valuable articles, such as a purse, or the like.
As a still further alternative, a holder, as shown at 178, may be attached to the frame 12 and defines a receptacle 180 conforming to at least one of a cellular telephone, a PDA, a drinking bottle, a drinking cup, or other discrete components. The holder 178 may be fixedly attached or attached to be movable, such as on a swivel connection. In the latter configuration, the holder 178 has a ring 182 which supports a collapsible net 183. The ring 182 is pivotable, as indicated by the double-headed arrow 184, through approximately 90° between the operative position, shown in
The frame 12 lends itself to a molded construction from plastic, or a composite. Metal construction, while not preferred, is also contemplated.
As shown in
A pin connector 198 on the cart 10 functions similarly to the pin connector 150 as a weight stabilizer 150 on the cart 10′.
The frame and components attached thereto may be configured to selectively simulate the appearance of other animals and may be colored or otherwise adorned to more closely simulate such an animal in appearance.
As noted previously, it is contemplated that only a single wheel 16 might be used. Other structure might be used to stabilize the cart with the frame 12 in its storage position. The single or multiple wheels may be on the order of six inches in diameter. This diameter may be greater or less, depending upon user preference.
Other variations are contemplated consistent with the disclosure herein.
The foregoing disclosure of specific embodiments is intended to be illustrative of the broad concepts comprehended by the invention.