Wheeled luggage item with integrated personal mobility capability

Abstract

A wheeled luggage article comprising: a base defining an interior chamber; and a liner configured to divide the interior chamber into a first portion and a second portion, the second portion being physically isolated from the first portion. Personal luggage items may be stored in the first portion of the chamber. The first and second wheels are rotatably coupled to the base so as to be movable between a stowed position in the second portion of the chamber and a deployed position external to the base to achieve a riding mode of the luggage item. The steering lever is rotatably deployable to be operably connected to the first wheel such that the first wheel can be steered by a user riding the luggage item in a riding mode. To propel luggage items in a riding mode, a battery within the interior chamber may power an in-wheel motor operably connected to the second wheel.

Description

Technical Field

[0001] Embodiments disclosed herein relate to items of luggage, and more particularly, to items of wheeled luggage that are convertible into personal mobility devices. Background Art

[0002] Suitcases and other luggage items are known to incorporate wheels to facilitate the user's movement of the luggage. However, under certain travel conditions and due to age, fatigue, and / or other infirmities, it may be difficult for the user to roll the luggage item the required distance. Summary of the Invention

[0003] In one aspect of the embodiments described herein, a wheeled luggage item is provided. The luggage item includes a base defining an interior compartment and an inner liner configured to separate the interior compartment into a first portion and a second portion physically isolated from the first portion. Wheels are rotatably coupled to the base so as to be movable between a stowed position within the second portion of the compartment and a deployed position outside the second portion of the compartment.

[0004] In another aspect of the embodiments described herein, a wheeled luggage item is provided. The luggage item includes a base; and a steerable wheel rotatably coupled to the base so as to be movable between a stowed position and a deployed position. A first steering rod and a second steering rod are rotatably coupled to the base. The first steering rod and the second steering rod are further operatively coupled to the wheel so that, when the wheel is in the deployed position, the wheel is steered by simultaneously rotating the first steering rod in one of a first rotational direction and a second rotational direction opposite the first rotational direction and rotating the second steering rod in the other of the first rotational direction and the second rotational direction.

[0005] In another aspect of the embodiments described herein, a wheeled luggage item is provided. The luggage item includes a base defining an interior compartment and a steerable wheel rotatably coupled to the base so as to be movable between a stowed position and a deployed position. A first steering rod and a second steering rod are rotatably coupled to the base. A gear set is operably coupled to the first steering rod and the second steering rod. A torque transfer member is operably coupled to the gear set such that simultaneous rotation of the first steering rod in one of a first rotational direction and a second rotational direction opposite the first rotational direction and the second steering rod in the other of the first rotational direction and the second rotational direction causes the torque transfer member to rotate in an associated torque direction. The luggage item also includes a first steering cable and a second steering cable operably coupled to the torque transfer member and the wheel such that, when the wheel is in the deployed position, rotation of the torque transfer member in the associated torque direction causes the wheel to rotate in the associated direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The accompanying drawings are incorporated in and constitute a part of the specification, and illustrate various systems, methods, and other embodiments of the present disclosure. It should be understood that the element boundaries (e.g., boxes, box groups, or other shapes) shown in the figures represent one embodiment of the boundaries. In some embodiments, an element can be designed as multiple elements, or multiple elements can be designed as one element. In some embodiments, an element shown as an internal component of another element can be implemented as an external component, and vice versa. In addition, the elements may not be drawn to scale. In addition, for simplicity and clarity of description, corresponding or similar elements of different embodiments of the present invention appearing in different figures may have similar reference numerals where appropriate.

[0007] Figure 1A and 1B is a schematic perspective view of a wheeled luggage item according to embodiments described herein, shown in a transport mode of the luggage item.

[0008] Figure 1C yes Figure 1A and 1B Schematic perspective view of a wheeled luggage item showing a jockey wheel of the luggage item stowed within a portion of an interior compartment of the luggage item when the luggage item is in a transport mode.

[0009] Figure 1D is a schematic block diagram of a wheeled luggage item according to embodiments described herein, illustrating the luggage item's brake, throttle, and control systems for use in riding mode.

[0010] Figure 2 yes Figure 1A and 1B Schematic perspective view of an item of wheeled luggage shown in a riding mode of the device.

[0011] Figure 2A yes Figure 1A and 1B View of the wheeled luggage item as viewed from the front of the unit.

[0012] Figure 2B is a schematic end view of a steering handle of a luggage item incorporating a throttle handle, illustrating operation of the throttle handle to control the throttle and brake of the luggage item in riding mode.

[0013] Figure 3 yes Figure 2 Schematic side view of a wheeled luggage item showing a user or rider seated on a seat structure of the device, with the seat structure in a raised orientation.

[0014] Figure 4 yes Figure 2Schematic side view of a wheeled luggage item showing a user or rider seated on a seat structure of the device, wherein the seat structure is in a stowed or lowered orientation.

[0015] Figure 5 is a schematic perspective view of a front portion of a luggage item in a riding mode showing a mounting bracket configured for connecting a steerable wheel to a base of the luggage item and with the wheel secured in a deployed position.

[0016] Figure 5A yes Figure 5 A schematic perspective view of a front portion of a luggage item is shown illustrating the brakes incorporated into the front mounting bracket and the steering wheel.

[0017] Figure 6 yes Figure 2 Schematic perspective view of a support frame of a luggage item, the support frame supporting the front and rear wheels of the luggage item, wherein the front and rear wheels are in a deployed position for a riding mode.

[0018] Figure 7 is a schematic cross-sectional view of a portion of a first or front wheel of a luggage device in a deployed position, taken from the underside of the wheel, illustrating the connection of a steering cable to the hub of the wheel.

[0019] Figure 8 is a schematic front perspective view of a portion of a mechanism mounted within an interior cavity of a base of a luggage item for steering the luggage item when the luggage item is in a riding mode and for maintaining a steering rod in its stowed position when the luggage item is in a transport mode.

[0020] Figure 9 yes Figure 8 Schematic rear perspective view of a portion of the steering mechanism is shown.

[0021] Figure 10A yes Figure 8 and 9 A schematic front cross-sectional view of a portion of a steering mechanism is shown showing the mechanism's fixed rod in an orientation pivotally connecting the steering rod to the remainder of the steering mechanism to enable the luggage item to be steered in riding mode.

[0022] Figure 10B yes Figure 10A , showing a schematic front cross-sectional view of a luggage case item, showing the securing bar in an orientation that enables the steering bar to be rotated independently of the remainder of the steering mechanism to a stowed position along the base of the luggage case item.

[0023] Figure 10C yes Figure 10A and 10BA schematic perspective view of a portion of a steering mechanism is shown illustrating a detachable rotational connection between a pawl projection of a steering mechanism coupling member and a pawl receptacle of a steering mechanism gear block.

[0024] Figure 11 is a graph showing the relationship between the throttle angle and the kinetic force generated when the throttle rotates in a first direction and the relationship between the throttle angle and the braking force generated when the throttle rotates in a second direction opposite to the first direction. DETAILED DESCRIPTION

[0025] The present disclosure relates to a wheeled luggage item that can be user-configured into either a transport mode or a ride mode. In transport mode, a user can grasp the luggage item's handles to roll the item along the ground in the manner of a conventional rolling suitcase. In ride mode, the luggage item is self-propelled and configured to be driven by a user seated on the luggage item. The luggage item includes a base defining an interior chamber and an inner liner configured to separate the interior chamber into a first portion and a second portion physically isolated from the first portion. Personal luggage items can be stored in the first portion of the chamber. First and second wheels are rotatably coupled to the base so as to be movable between a stowed position within the second portion of the chamber and a deployed position outside the base, enabling the luggage item to be used in ride mode. A steering rod can be rotatably deployed to operably connect to the first wheel, enabling the first wheel to be steered by the user riding the luggage item in ride mode. To propel the luggage item in ride mode, a battery in the interior chamber can power an in-wheel motor operably connected to the second wheel. When not in use, the steering rod can be rotated into a cavity formed in the base so that the space occupied by the luggage items conforms to the space allowed for a carry-on suitcase on commercial airlines.

[0026] Figure 1A and 1B is a schematic perspective view of a wheeled luggage article 20 according to embodiments described herein. Figure 1A The wheeled luggage item 20 is shown in a transport mode in which the luggage item can be manually rolled along the ground in the manner of a conventional suitcase or other piece of luggage. In one or more arrangements, the wheeled luggage item 20 can be configured to fit within the permitted space of a carry-on suitcase on a commercial airline (e.g., 22 inches by 14 inches by 9 inches) when the wheeled luggage item is in transport mode. The wheeled luggage item 20 can be provided with a retractable handle 20z and conventional luggage rollers or wheels 20y ( Figure 1B ) to facilitate the user's movement of luggage items when the luggage item is in transport mode. Figure 1B Wheeled luggage item 20 is shown with handle 20z deployed for transport.

[0027] Figure 2 2 is another schematic perspective view of wheeled luggage item 20, showing the luggage item in riding mode. In riding mode, wheeled luggage item 20 may be self-propelled and manually steerable using a steering mechanism to enable a user to sit on the luggage item and use it as a personal vehicle. Figure 2A yes Figure 2 . In the embodiment described herein, the wheeled luggage item 20 is configured to be manually converted between a transport mode and a riding mode according to the needs of the user.

[0028] As used herein, elements are "rotationally connected" and "rotatably connected" to one another when they are connected so as to rotate in conjunction with one another. Elements are "removably rotationally connected" when the rotational connection between the elements can be disabled or interrupted by certain manipulations of the wheeled luggage item (e.g., rotating the securing rod 94 to the first position to enable free rotation of the steering rods 30a, 30b, or sliding contact between the coupling member and the associated gear block in response to the application of excessive steering torque to the steering rods, as described herein). Elements are "rotatably coupled" to one another when they are operably connected so that they can rotate relative to each other (i.e., can rotate independently or individually) or so that one of the elements can rotate relative to the other. Additionally, the term "operably connected" as used throughout this specification may include direct or indirect connections, including connections without direct physical contact.

[0029] refer to Figures 1A to 4 In one or more arrangements, the wheeled luggage item 20 can include a base 22. The base 22 can include interconnected walls that form a planar first edge 22a defining a first plane P1, a planar second edge 22b extending from the first edge 22a, a planar third edge 22c extending opposite the first edge 22a, and a planar fourth edge 22d extending from the first edge 22a toward the third edge and defining a second plane P2. A first beveled edge 22e can connect the third edge 22c with the fourth edge 22d, and a second beveled edge 22f can connect the second edge 22b with the third edge 22c.

[0030] like Figure 4As shown, when the wheeled luggage item 20 is in the riding mode, a portion of the first edge 22a can define a seating surface for a user. Additionally, the first edge 22a can be configured to form the top edge, or uppermost edge, of the wheeled luggage item 20. The second edge 22b can be configured to form the forward edge, or front edge, of the wheeled luggage item 20, and the fourth edge 22d can be configured to form the rear edge of the wheeled luggage item 20, when the wheeled luggage item 20 is in the riding mode. The third edge 22c can be configured to form the lowermost edge, or bottom edge, of the base 22, when the wheeled luggage item 20 is in the riding mode.

[0031] refer to Figures 1A to 4 The wheeled luggage article 20 may include a seat structure 24 having a first portion 24a and a second portion 24b extending from the first portion. The seat structure 24 may be operably connected to the base 22 so as to be capable of being positioned relative to the base 22 in a first (stowed) orientation (e.g., Figure 1A 、 1B and 4) and a second (elevated) orientation (as Figure 2 and 3 When the seat structure 24 is in the first orientation and the wheeled luggage item 20 is in the riding mode, the first portion 24a can form a seating surface positioned at a first height H1 above the ground surface GS1. Moreover, when the seat structure 24 is in the second orientation and the wheeled luggage item 20 is in the riding mode, the second portion 24b can form a seating surface positioned at a second height H2 above the ground surface GS1, wherein the second height H2 is greater than the first height H1. For relatively tall users, the seat structure 24 can be rotated to Figure 2 and 3 The seat structure 24 is shown in the raised orientation. A releasable locking mechanism (not shown) may be provided to maintain the seat structure 24 in the second orientation when raised. When the seat structure 24 is in the stowed orientation, the first portion 24a may extend along the first edge 22a of the base so as to be coplanar or flush with the first edge along plane P1, and the second portion 24b may extend along a portion of the fourth edge 22d of the base and be coplanar or flush with plane P2 of the fourth edge 22d. For rider comfort, one or more seat cushions may extend along the first and second portions 24a, 24b of the seat structure. In some arrangements, a gusset 24c may extend between the first and second portions 24a, 24b to help support the seat surface S2 when the seat structure is raised.

[0032] The base 22 may further include a first face 22g and a second face 22h extending opposite the first face 22g. The first face 22g may extend between the base edges 22a-22f to connect these edges along their respective first sides. Similarly, the second face 22h may extend between the base edges 22a-22f to connect these edges along their respective second sides.

[0033] The first steering rod receptacle 22s can be formed to extend between the first edge 22a and the first face 22g. The first steering rod receptacle 22s can be configured to receive the first steering rod 30a therein when the first steering rod 30a is rotated to the stowed orientation of the first steering rod (as shown in FIG. 1 ) (described in greater detail below). Similarly, a second steering rod receptacle 22t can be formed to extend between the first edge 22a and the second face 22h. The second steering rod receptacle 22t can be configured to receive the first steering rod 30a therein when the first steering rod 30b is rotated to the stowed orientation of the second steering rod (as shown in FIG. 1 ). Figures 1A to 1B ) receives a second steering rod 30b therein (described in more detail below).

[0034] 1 to 5 , the base edges 22a-22f and the first and second faces 22g, 22h can combine to define an interior chamber 22j of the base 22. The interior chamber 22j can be configured to receive and / or store therein elements, such as luggage to be transported in the base and other portions of the wheeled luggage item 20. The inner liner 23 can be configured to separate the interior chamber 22j into a first portion 22k and a second portion 22m adjacent to and physically separated from the first portion 22k to prevent objects from moving between the first portion 22k and the second portion 22m. The inner liner 23 can be formed, for example, from a molded polymer. Figure 5 As can be seen, the outer edge 23a of the liner 23 may abut or be located near the edges 22a-22f of the base 22 forming the base 22 to maximize the use of the space inside the base 22 for storage.

[0035] The first portion 22k of the interior chamber may form a receptacle for storing luggage and other items for transport by a user. The first portion 22k of the interior chamber may be accessed via an opening 22n formed along the first side 22g. The opening 22n may be provided by a door 22w ( Figure 2) closed. Door 22w can be connected to base 22 so as to be rotatable relative to the rest of base 22 or otherwise movable away from opening 22n to open and allow a user access to the contents of first portion 22k of interior compartment. Door 22w can have a relatively soft, flexible structure or a relatively rigid, secure structure. Door 22w can be secured in a closed position along first side 22g to retain the luggage item within first portion 22k of interior compartment during movement of wheeled luggage item 20. For example, door 22w can be secured in the closed position using a zipper, latch, or any other suitable mechanism. In certain arrangements, door 22w can have a pocket (not shown) (e.g., a sleeve for storing and transporting laptop computer 99) mounted on the portion of door 22w facing first portion 22k of interior compartment.

[0036] The second portion 22m of the interior chamber can be configured to form a wheel receptacle for receiving therein a first wheel 40 and a second wheel 42 (described in greater detail below) of the wheeled luggage item 20. The wheels 40, 42 can be configured to be deployable from the second portion 22m of the interior chamber as described herein to enable a user to ride the wheeled luggage item 20 in a riding mode.

[0037] refer to Figure 2A A pair of footrests 20p may be rotatably mounted along surfaces 22g and 22h to the base 22. The footrests 20p may be rotatably extended to support the user's feet in riding mode and may be rotated to be positioned within associated footrest cavities formed in the surfaces 22g, 22h.

[0038] refer to Figure 5 A wheel hinge pin sleeve receptacle 22r can be formed within the interior chamber 22j of the base along the second beveled edge 22f. The receptacle 22r can be configured to receive therein a hinge pin sleeve 60s (described in greater detail below) of the wheel mounting bracket 60, enabling the wheel mounting bracket to be rotatably coupled to the base 22 via a hinge pin 61 extending through the sleeve 60s. Each end of the hinge pin 61 can then be secured to an associated portion of the base 22 within the interior chamber 22j of the base. The wheel mounting bracket 60 and the attached first steerable wheel 40 can then be rotated into (and out of) the second portion 22m of the interior chamber for stowage and deployment.

[0039] refer to Figure 5A steering cable channel 22p can be formed within the interior chamber 22j of the base so as to extend along the second edge 22b of the base. The steering cable channel 22p can be configured to receive therein a pair of steering cables 70a, 70b (described in greater detail herein) that operatively connect the steering rods 30a and 30b to the first wheel 40 supported by the wheel mounting bracket 60. The steering cable channel 22p can be configured to guide and protect the steering cables 70a, 70b extending therethrough.

[0040] refer to Figure 1D and 5A , elements of a brake 40b can be incorporated into the first wheel 40 and the mounting bracket 60. In one or more arrangements, the brake 40b can be a conventional hydraulic disc brake or another type of mechanical brake. In a particular arrangement, the brake can include an actuator 40m (e.g., a servo motor) and a brake master cylinder 40c, which is connected to a caliper 40n via a hose 40y and is operable to pressurize the caliper 40n to engage the first wheel 40, thereby slowing and stopping the forward movement of the luggage item 20. The actuator 40m can be operably connected to the luggage item's control module 213 (described in more detail below) to receive control signals from the control module 213.

[0041] refer to Figure 6 , a support frame 22z can extend within the interior chamber 22j along the third edge 22c of the base to enable the first and second wheels 40, 42 to be rotatably coupled to the base 22. Mounting brackets 60, 160 supporting the first and second wheels 40, 42, respectively, can be rotatably mounted to the support frame 22z by associated first and second rotatable coupling mechanisms (not shown) to enable the first and second wheels 40, 42 to be stowed and deployed from the second portion 22m of the interior chamber, as described herein.

[0042] Reference again Figure 5 , the wheel mounting bracket 60 may be rotatably coupled to the frame 22z by a hinge pin 61 for rotatably supporting the first wheel 40 thereon. The wheel mounting bracket 60 and the wheel 40 may be configured to be securable in a first (stowed) orientation, in which the first wheel 40 rotatably coupled to the mounting bracket 60 is received (and retained) in the second portion 22m of the interior chamber of the base. The wheel mounting bracket 60 and the wheel 40 may also be configured to be securable in a second (deployed) orientation, in which the first wheel 40 rotatably coupled to the mounting bracket 60 is retained in the deployed position of the first wheel 40. A locking mechanism (not shown) may be operably connected to the mounting bracket 60 for securing the mounting bracket in the deployed orientation to support the deployed first wheel 40. As Figure 3 and 4As can be seen, the wheel mounting bracket 60 can be rotatably coupled to the base 22 to support the first wheel 40 so that when the first wheel 40 is locked in the deployed position and in contact with the ground surface GS1, the first wheel extends below the lowermost portion of the base 22 (in this example, the third edge 22c of the base).

[0043] refer to Figure 5 The wheel mounting bracket 60 may have a first end 60a that is rotatably coupled to the base 22. A hinge pin sleeve 60s (as previously described) may be located near the first end 60a of the wheel mounting bracket and configured to receive the hinge pin 61 therein to rotatably secure the wheel mounting bracket 60 to the base 22. The hinge pin sleeve 60s may have a first open end 60s-1, a second open end 60s-2 opposite the first open end 60s-1, and a main body 60s-3 extending between the first and second ends. The main body 60s-3 may be configured to allow portions of the steering cables 70a, 70b to be routed therethrough. Additionally, an opening 60s-4 may be formed in the main body 60s-3 to allow the steering cables 70a, 70b that enter the sleeve 60s at the first end 60s-1 to exit the sleeve 60s along the main body 60s-3.

[0044] The wheel mounting bracket 60 may also have a second end 60b (ie, a wheel supporting end) opposite the first end 60a. Figure 5 As can be seen, a steering knuckle 74 can be incorporated into the second end portion 60b of the wheel mounting bracket. The hub 40h of the first wheel 40 can be rotatably coupled to the steering knuckle 74 via a kingpin 40p in a known manner, allowing the hub 40h and the first wheel 40 to rotate about a kingpin axis 40x of the kingpin 40p. Rotation of the first wheel 40 about the kingpin axis 40x changes the direction in which the wheel 40 points, thereby enabling a user to steer the wheeled luggage item 20 in the manner described herein.

[0045] like Figure 5 、 6 7, the wheel mounting bracket 60 may further include an outwardly extending main body portion 60c configured to extend from the second end portion 60b of the mounting bracket along the front-back plane P9 ( ) away from the base 22 when the mounting bracket 60 supports the wheel 40 in the deployed position. Figure 7 ) direction. Figure 2A It can be seen that considering the wheeled luggage item 20 as a vehicle when it is in the riding mode and the base 22 is similar to the body of the vehicle, the front-back plane P9 of the base 22 can be a vertical plane extending through the front-back axis of the base 22 when the base is in the riding mode. Figures 5 to 7, the inwardly extending portion 60e of the mounting bracket 60 can be configured to extend from the end 60d of the outwardly extending main portion 60c in a direction toward the front-to-back plane P9 of the base 22 when the mounting bracket 60 supports the wheel 40 in the deployed position of the wheel. The outwardly extending main portion 60c and the inwardly extending portion 60e can combine to define a chamber 60f therebetween. Figure 7 , chamber 60f may be configured to receive a portion of wheel 40 therein when the wheel rotates in direction S2, as described in more detail below.

[0046] refer to Figure 5 and Figure 7 In a particular arrangement, the mounting bracket 60 can have a two-piece structure formed by a combination of an outer bracket member 62 and an inner bracket member 63. The outer bracket member 62 and the inner bracket member 63 can be bolted together or otherwise secured together. In such an arrangement, the outer bracket member 62 can have an associated first end 62a and a second end 62b opposite the first end. The first end 62a can incorporate a hinge pin sleeve 60s along it. The outer bracket member 62 can have a basic structure similar to that previously described with respect to the entire mounting bracket 60. That is, the outer bracket member 62 can have an outwardly extending main body portion 62c that is configured to extend from the second end 62b of the outer bracket member in a direction away from the front-to-back plane P9 of the base 22 when the mounting bracket 60 supports the first wheel 40 in the deployed position of the first wheel. The outer bracket member 62 may also have an inwardly extending main body portion 62e that is configured to extend from an end 62d of the outwardly extending main body portion 62c in a direction toward the fore-aft plane P9 and the first end 63a of the outer bracket member when the mounting bracket 60 supports the first wheel 40 in the deployed position of the wheels.

[0047] In a two-piece arrangement, the inner bracket member 63 may also have an associated first end 63a and a second end 63b opposite the first end 63a. The inner bracket member 63 may also have a basic structure similar to that previously described with respect to the entire mounting bracket 60. That is, the inner bracket member 63 may have an outwardly extending portion 63c configured to conform to the inner surface of the outwardly extending portion 62c of the outer bracket member. The inner bracket member 63 may also have an inwardly extending portion 63e configured to extend from an end 63d of the outwardly extending portion 63c in a direction toward the front-to-back plane P9 of the base when the mounting bracket 60 supports the first wheel 40 in the wheel-deployed position, thereby conforming to the inwardly extending portion 62e of the outer bracket member 62 for attachment thereto. The outwardly extending portion 63c and the inwardly extending portion 63e of the inner bracket member 63 may combine to define a chamber 60f therebetween.

[0048] refer to Figure 5 and 7 The inner bracket member 63 may also include a first channel 63p formed therethrough, configured to receive a portion of the first steering cable 70a therethrough. The inner bracket member 63 may also include a second channel 63r formed therethrough, configured to receive a portion of the second steering cable 70b therethrough. When the outer bracket member 63 is secured to the inner bracket member 62 to form the mounting bracket 60, the portions of the steering cables 70a, 70b extending along the channels 63p, 63r may be secured between the outer bracket member 62 and the inner bracket member 63. Thus, the channels 63p, 63r may help guide the steering cables 70a, 70b from the torque transfer member 65 (described below) to the corresponding connection locations on the first hub 40h. In some arrangements, a locking mechanism for securing the mounting bracket 60 in the deployed orientation may be incorporated into (or operably connected to) the inner bracket member 63. The wheels 40 may be rotatably coupled to the base 22 using the mounting brackets 60 so as to be movable between a stowed position within the second portion 22m of the chamber and a deployed position outside of the second portion of the chamber.

[0049] refer to Figure 5 and 7 The first steerable wheel 40 can be rotatably coupled to the base 22 so as to be movable between a stowed position and a deployed position. In one or more arrangements, the first wheel 40 is rotatably coupled to the base 22 by rotatably coupling it to the second end 60b of the mounting bracket. The first wheel 40 may include a tire 40a and a hub 40h supporting the tire. The end of a first steering cable 70a can exit its associated mounting bracket channel 63p to connect to the hub 40h along a first side T1 of the hub. Furthermore, the end of a second steering cable 70b can exit its associated mounting bracket channel 63r to connect to the hub 40h along a second side T2 of the hub 40h, opposite the first side. In the manner described herein, the operative connection of the first steering cable 70a to the first side T1 of the hub 40h enables force to be applied to the first cable 70a through rotation of a torque transfer member 65 (described below) to rotate the wheel 40 in a first direction S1 about the kingpin axis 40x. Furthermore, the operable connection of the second steering cable 70b to the second side portion T2 of the wheel hub 40h enables force to be applied to the second cable 70b by rotation of the torque transfer member 65 in the opposite direction to rotate the wheel 40 about the kingpin axis 40x in a second direction S2 opposite to the first direction S1. In one or more arrangements, the first wheel 40 can be rotatably coupled to the second end portion 60b of the mounting bracket along a single side of the wheel 40, such as Figure 5 and 7shown.

[0050] refer to Figures 8 to 10C The wheeled luggage item 20 may be provided with a steering mechanism to enable a user seated on the wheeled luggage item to steer the luggage item using a first steering lever 30a and a second steering lever 30b. The steering lever 30a may have a steering handle 30h adapted to be gripped by the user's right hand during riding. The steering lever 30b may have a steering handle 30j adapted to be gripped by the user's left hand during riding.

[0051] In one or more arrangements, one of the steering handles (e.g., steering handle 30h in the illustrated embodiment) may be implemented as a twist handle that is configured to be manually rotated when a user rides the luggage item in riding mode. Figure 1D and 2B The turning handle 30h may be combined with (or operatively connected to) an angle sensor 30s, which is configured to detect an angle at which the turning handle rotates in a first direction R1 or in a second direction R2 opposite to the first direction. Figure 2B As shown, in some arrangements, the first direction R1 can be toward the rearward-facing direction of the luggage item in the riding mode, and the second direction R2 can be toward the forward-facing direction of the luggage item in the riding mode. As described herein, the luggage item 20 can be configured such that rotation of the throttle 30h in the first direction R1 controls operation of the second wheel motor 42x to propel the luggage item forward. The luggage item 20 can also be configured such that rotation of the throttle 30h in the second direction R2 controls operation of the brake 40b mounted on the first (front) wheel 40 to slow and stop the forward movement of the luggage item. The angle sensor 30s can be wired or otherwise operably connected to a control module 213 (described in greater detail below) mounted in the second portion 22m of the interior chamber of the base.

[0052] In one or more arrangements, the steering mechanism can include a gear carrier 72 fixedly mounted on a support structure (not shown) positioned within a portion of the interior chamber 22j of the base, outside the liner 23 and inside an outer wall of the base forming the second edge 22b of the base. The gear carrier 72 can have a central opening 72a extending therethrough to accommodate a fixed shaft 76 therethrough.

[0053] A gear set (generally designated 78) can be supported (e.g., using bearings) on the gear carrier 72 to enable the gears of the gear set to rotate within a portion of the interior chamber 22j of the base as described herein. The gear set 78 can be configured to apply a force to the steering cables 70a, 70b extending through the base 22 in response to rotation of the steering rods 30a, 30b, as described herein.

[0054] The first gear block 80 can be rotatably coupled to the gear carrier 72 using one or more bearings 81. The first gear block 80 can have a central through-hole 80a to allow the fixed shaft 76 to pass through the central through-hole. The first gear block 80 can have a rotational axis X1. The first gear block 80 can have an outwardly facing first side 80b, wherein a first plurality of angularly spaced pawl receiving portions 80c extend along the first side. The pawl receiving portions 80c can be configured to removably engage complementary pawl projections 82a (described in more detail below) formed on the first coupling member 82 by receiving each pawl projection 82a between a pair of angularly adjacent pawl receiving portions 80c.

[0055] A spring receiving chamber 80d can be formed near the opening 80a and extend from the first side portion 80b into the opening. The opening 80a can have a shoulder 80e configured to support a first spring 85 (e.g., a coil spring) received therein. The first gear block 80 can also have an inwardly facing second side portion 80f positioned opposite the first side portion 80b. A first bevel gear 80g can be formed along the second side portion 80f of the first gear block. The first bevel gear 80g can be configured to meshingly engage with a plurality of pinions 86 rotatably coupled to the gear carrier 72 in the manner described herein. Thus, the pawl receiving portion 80c and the first bevel gear 80g are rotationally connected.

[0056] The first spring 85 can be positioned in the spring receiving chamber 80d and can be configured to apply a force to urge the first coupling member 82 (described in more detail below) away from the first gear block 80 to disengage the pawl projection 82a of the first coupling member 82 from the associated pawl receiving portion 80c of the first gear block when the force maintaining the pawl projection 82a engaged with the pawl receiving portion 80c is released.

[0057] The second gear block 87 may be rotatably coupled to the gear carrier 72 using one or more bearings 88. The second gear block 87 may have a central through-hole 87a to allow the fixed shaft 76 to pass therethrough. The second gear block 87 may have a rotational axis coaxial with the rotational axis of the first gear block (i.e., along axis X1). The second gear block 87 may have an outwardly facing first side 87b, with a second plurality of angularly spaced pawl receiving portions 87c extending along the first side. The pawl receiving portions 87c may be configured to removably engage complementary pawl projections 89a formed on the second coupling member 92 (described in more detail below) by receiving each pawl projection 89a between a pair of angularly adjacent pawl receiving portions 87c. A spring receiving chamber 87d may be formed adjacent to the opening 87a and extend from the first side 87b into the opening. The opening 87a may have a shoulder 87e configured to support a second spring 90 (e.g., a coil spring) received therein.

[0058] The second gear block 87 may also have a second side portion facing inwardly and positioned opposite the first side portion 87b. A second bevel gear 87g may be formed along the second side portion of the second gear block. The second bevel gear 87g may be configured to meshingly engage with the plurality of pinions 86 rotatably coupled to the gear carrier 72 in the manner described herein. Thus, the pawl receiving portion 87c and the second bevel gear 87g are rotationally connected.

[0059] The second spring 90 can be positioned in the spring receiving chamber 87d and can be configured to apply a force that pushes the second coupling member 92 (described in more detail below) away from the second gear block 87 to disengage the pawl projections 89a of the second coupling member 92 from the associated pawl receptacles 87c of the second gear block when the force holding the pawl projections 89a engaged with the pawl receptacles 87c is released.

[0060] The gear set 78 may also include one or more pinion gears 86 rotatably coupled to the gear carrier 72 between the first gear block 80 and the second gear block 87. The pinion gears 86 may be configured to rotatably mesh with the first bevel gear 80g of the first gear block 80 and the second bevel gear 87g of the second gear block 87 during rotation of the steering rods 30a, 30b, as described herein, such that all of the pinion gears 86 are rotatably coupled to each of the first bevel gear 80g and the second bevel gear 87g. A first pinion gear 86 may be configured to support the torque-transmitting member 65 rotatably connected to the first pinion gear 86. One or more additional pinion gears 86 may be rotatably coupled to the gear carrier 72 at locations along the gear carrier angularly spaced apart from the first pinion gear to also help maintain the spacing between the first gear block 80 and the second gear block 87.

[0061] refer to Figure 8 and 9 , the torque transmitting member 65 can be rotationally connected to the first pinion of the pinion gears 86. In the manner described herein, the ends of the first steering cable 70a and the second steering cable 70b can be attached to the torque transmitting member 65, and the opposite ends of the first steering cable 70a and the second steering cable 70b can be attached to the hub 40h ( Figure 7 ), such that rotation of the torque transmitting member 65 in an associated first torque direction V1 causes the steerable wheels 40 to rotate in a first direction S1, and rotation of the torque transmitting member 65 in an associated second torque direction V2 opposite to the first torque direction V1 causes the steerable wheels 40 to rotate in a second direction S2.

[0062] Reference again Figure 5 and 7 , the first steering cable 70a and the second steering cable 70b can extend downwardly through the interior chamber 22j of the base to enter the hinge pin sleeve 60s at the open end 60s-1. The first steering cable 70a and the second steering cable 70b can exit the hinge pin sleeve 60s at the opening 60s-4 to enter the associated steering cable channels 63p, 63r formed in the mounting bracket 60. Figure 7 A first steering cable 70a may be operably connected to a first side T1 of the wheel hub 40h so that a force can be applied to the first cable to rotate the wheel 40 in a first direction S1 about the kingpin axis 40x. A second steering cable 70b may be operably connected to a second side T2 of the wheel hub 40h opposite the first side of the wheel hub so that a force can be applied to the second cable 70b to rotate the wheel 40 in a second direction S2 about the kingpin axis that is opposite the first direction S1.

[0063] refer to Figures 8 to 10BThe first coupling member 82 may have a passage 82p extending therethrough to accommodate a portion of the fixed shaft 76. The first coupling member 82 may have a first end 82b that, in conjunction with the aforementioned detent projection 82a, engages a complementary detent receptacle 80c formed on the first gear block 80. A shoulder 82c on the first end may be positioned adjacent to the fixed shaft passage 82p to provide a bearing surface for the end of the first spring 85 extending from the spring receiving chamber 80d of the first gear block. The first coupling member 82 may also have a second end 82d positioned opposite the first end 82b. A portion of the second end 82d of the first coupling member may extend from the interior chamber 22j of the base and extend to the exterior of the base 22, where it may be rotatably coupled to the first steering rod 30a. At the location where the first coupling member 82 exits the base 22, a first bushing 82e may be interposed between the first coupling member 82 and the base 22 to rotatably support the first coupling member 82 relative to the base 22.

[0064] The first coupling member 82 can be operably connected to the gear set 78 (described in more detail below) about the fixed shaft 76 to enable the first coupling member 82 to move along the longitudinal axis X1 of the fixed shaft. The second end 82d of the first coupling member can have a cavity 82f with an internal shoulder 82g.

[0065] The first steering rod 30a can be rotatably coupled to the base 22 and adjacent to the first face 22g of the base 22 ( Figure 2 ) in order to be able to Figure 2 ) and the stowed orientation ( Figure 1A ) between. The first steering rod 30a can be rotatably connected to the first coupling member 82 and is close to the second end 82d of the first coupling member. Figure 1A and 8 The first steering rod 30a may have a fixed rod receiving cavity 30z formed therethrough that is configured to receive a fixed rod 94 (described in greater detail below) therein when the fixed rod 94 is rotated to its second orientation. The cavity 30z may be configured such that the fixed rod 94 extends flush with an outer surface of the first steering rod 30a when received therein, or such that the fixed rod 94 is recessed within the cavity 30z and positioned below the outer surface.

[0066] refer to Figure 10A and 10B, the second coupling member 92 can have a passage 92a extending therethrough to accommodate a portion of the fixed shaft 76. The second coupling member 92 can have a first end 92b that incorporates the aforementioned detent projection 89a for engaging a complementary detent receptacle 87c formed on the second gear block 87. A shoulder 87e at the second end can be positioned adjacent the fixed shaft passage 92a to provide a bearing surface for the end of the second spring 90 extending from the spring receiving chamber 87d of the second gear block.

[0067] The second coupling member 92 may also have a second end 92d positioned opposite the first end 92b. A portion of the second coupling member's second end 92d may extend from the base's internal cavity 22j and outside the base 22, where it may be rotatably coupled to the second steering rod 30b. At a location where the second coupling member 92 exits the base 22, a second bushing 92e may be interposed between the second coupling member 92 and the base 22 to rotatably support the second coupling member 92 relative to the base 22. The second steering rod 30b may be rotatably coupled to the second coupling member 92 near the second end 92d of the second coupling member.

[0068] refer to Figure 10A and 10B , the second coupling member 92 can have a chamber 92k formed therein and a chamber opening at a second end 92d of the second coupling member. The chamber 92k can have a base plate 92m therein for supporting a torque release spring 100 located thereon. The torque release spring 100 can be any type of spring suitable for the purposes described herein. The torque release spring 100 can have a first end supported against the base plate 92m and a second end opposite the first end. The torque release spring 100 can have a spring constant that is much greater than the spring constants of the first and second springs 85, 90 previously described (i.e., the torque release spring 100 can be much "harder" than the first and second springs 85, 90). A cap 101 can be applied to the torque release spring 100 to support the torque release spring at its second end. The cap 101 can be attached to the second end 76b of the fixed shaft 76 (described in more detail below) such that the force applied to the cap by the fixed shaft 76 in the direction F1 is transferred to the torque release spring 100 to compress the torque release spring. As Figure 8 、 10A 10B , the gear set 78 is mounted on the gear carrier 72 between the first coupling member 82 and the second coupling member 92 .

[0069] The second steering rod 30b can be rotatably coupled to the base 22 adjacent the second face 22h of the base 22 so as to be capable of rotating in the deployed orientation ( Figure 2 and 8) and the stowage direction ( Figure 1A and 1B The second steering rod 30b can be rotatably connected to the second coupling member 92 and is close to the second end 92d of the second coupling member.

[0070] The fixed shaft 76 may have a first end 76a extending into the cavity 82f at the second end of the first coupling member and a second end 76b extending into the spring receiving cavity 92k at the second end of the second coupling member. Figure 10A and 10B As shown, the fixed shaft 76 can extend into the cavity 82f at the second end of the first coupling member, through the first coupling member 82, the first gear block 80, the gear carrier 72, the second gear block 87, and the second coupling member 92, until the fixed shaft applies the cap 101 to the torque release spring 100. The fixed shaft 76 can be axially movable along the longitudinal axis X1 of the shaft in response to rotation of the fixed rod 94, as described below. The fixed shaft 76 can also be rotatable about the axis X1. As described herein, the combination of the fixed rod 94, the fixed shaft 76, and the torque release spring 100 can enable a force to be transmitted along the axis X1, which forces the detent projection 82a of the first coupling member into removable rotational engagement with the detent receiving portion 80c of the first gear block and the detent projection 89a of the second coupling member into removable rotational engagement with the detent receiving portion 87 of the second gear block.

[0071] The fixing rod 94 can be rotatably coupled to the fixing shaft 76 at the first end 76a of the fixing shaft, thereby forming a rotation axis X3 between the fixing rod 94 and the fixing shaft 76. The fixing rod 94 can also be configured to abut an internal shoulder 82g of the first coupling member located inside the cavity 82f at the second end of the first coupling member. The fixing rod 94 can be rotatable to (and can be fixed in) a first orientation ( Figure 10B ) and the second orientation ( Figure 8 、 10A ) in any orientation.

[0072] refer to Figure 10B In the first orientation of the fixing rod 94, the first surface 94b of the fixing rod 94 bears against the inner shoulder 82g of the first coupling member 82. In addition, the torque release spring 100 (fixed along the fixing axis 76 by the cap 101) bears against the bottom plate 92m of the second coupling member 92. With this arrangement, the fixing rod 94 is operatively connected to the first coupling member and the second coupling member.

[0073] The securing rod 94 may be configured such that rotation of the rod in direction DD1 to a first orientation (where the rod first surface 94b abuts the inner shoulder 82g) moves the securing shaft 76 in direction F2 ( Figure 10B). This movement causes the force exerted by the first spring 85 to push the first coupling member 82 in direction F1 (opposite to direction F2) away from the first gear block 80. This movement disengages the detent projection 82a of the first coupling member from rotational engagement with the detent receptacle 80c of the first gear block, thereby disconnecting the first coupling member 82 from the first gear block 80. Since the first steering rod 30a is rotationally connected to the first coupling member 82, the disconnection of the first coupling member 82 from the first gear block 80 allows the first steering rod 30a to rotate independently of the gear set 78.

[0074] Similarly, rotation of the fixing lever 94 to the first position enables the force exerted by the second spring 90 to push the second coupling member 92 in the direction F2 away from the second gear block 87. This movement disengages the detent projection 89a of the second coupling member from the detent receptacle 87c of the second gear block, thereby rotationally disconnecting the second coupling member 92 from the second gear block 87. Since the second steering rod 30b is rotationally connected to the second coupling member 92, the disconnection of the second coupling member 92 from the second gear block 87 enables the second steering rod 30b to rotate independently of the gear set 78.

[0075] Now refer to Figure 10AWhen the fixed rod 94 is rotated in direction DD2 to the rod's second orientation, the second surface 94a of the fixed rod 94 bears against the inner shoulder 82g. This rotation causes the fixed shaft 76 to move in direction F1. Because the spring constant of the torque release spring 100 is significantly greater than the spring constants of the first and second springs 85, 90, the movement of the fixed shaft 76 in direction F1 causes the second coupling member 92 to overcome the separation force applied by the second spring 90 and move in direction F1, thereby engaging the pawl projection 89a of the second coupling member with the pawl receptacle 87c of the second gear block without significant axial deflection of the torque release spring 100. This rotationally connects the second coupling member 92 and its rotationally connected second steering rod 30b to the second gear block 87 and the gear set 78. Similarly, movement of the fixed shaft 76 in direction F1, with the fixed lever 94 pushing against the shoulder 82g, causes the first coupling member 82 to overcome the separation force applied by the first spring 85 and move in direction F2, thereby engaging the first coupling member's pawl projection 82a with the first gear block's pawl receptacle 80c. This rotationally connects the first coupling member 82 and its rotationally connected first diverter lever 30a to the first gear block 80 and the gear set 78. Rotation of the fixed lever 94 in direction DD2 also retracts the fixed lever within the cavity 30z of the first diverter lever, thereby locking the fixed lever 94 in the retracted orientation, maintaining the first coupling member 82 in rotational connection with the first gear block 80 and the second coupling member 92 in rotational connection with the second gear block 87. Thus, rotation of the fixed lever 94 to the first orientation enables the first and second coupling members 82 and 92 to be rotationally disconnected from the gear set 78. Furthermore, rotation of the fixed rod 94 to the second orientation pushes the first and second coupling members 82 and 92 toward each other and into rotational connection with the gear set 78 , thereby rotationally connecting the first and second steering rods 30 a and 30 b to the gear set 78 .

[0076] refer to Figures 1A to 6 The second wheel 42 may be rotatably coupled to the base 22 so as to be capable of rotating in a stowed position (eg, Figures 1A to 1C shown) and the deployed position outside the first portion of the chamber ( Figure 2 、 3 and 4). In one or more arrangements, the second wheel 42 is rotatably coupled to the base 22 by rotatably coupling the second wheel 42 to a second end of another mounting bracket 160 having a structure similar to the aforementioned mounting bracket 60 but omitting the steering cable channel. The other mounting bracket 160 can be rotatably coupled to the frame 22z. The second wheel 42 can include a tire 42a and a hub 42h supporting the tire 42a. As shown, the wheel 42 can form a rear wheel of the wheeled luggage item 20. Figure 3 and 4As can be seen, the wheel mounting bracket 160 can be rotatably coupled to the base 22 to support the second wheel 42 so that when the second wheel 42 is locked in the deployed position and in contact with the ground surface GS1, the second wheel extends below the lowermost portion of the base 22 (in this example, the third edge 22c of the base).

[0077] refer to Figure 6 A known or later developed direct drive or other in-wheel motor 42x may be operably connected to the second wheel 42 to drive the second wheel 42 to rotate in a known manner during operation of the wheeled luggage item 20 in the transport mode. A battery 25 may also be mounted on the frame and operably connected to the motor 42x to power the wheel 42 to propel the wheeled luggage item 20 when it is in the riding mode.

[0078] In one or more arrangements, a planetary gearbox 42g can be used to transmit motion from motor 42x to the driven second wheel 42. For example, motor 42x can be statically mounted on wheel mounting bracket 160, and the output shaft of motor 42x can be configured to meshingly engage two or more external gears (not shown) that are rotatably coupled to a bracket that is rotationally connected to wheel 42. Rotation of the motor's output shaft then causes rotation of the external gears and the rotationally attached wheel 42. In this way, second wheel 42 can be driven by motor 42x in a known manner.

[0079] The motor 42x may be operatively connected (via a wired or wireless connection) to a control module 213 that may transmit a throttle control signal to the motor 42x to control the speed of the motor in response to the angle of the throttle 30h detected by the angle sensor 30s.

[0080] refer to Figure 1D , the luggage item 20 may include one or more processors 110. In one or more arrangements, the processor(s) 110 may be the main processor(s) of the luggage item 20. For example, the processor(s) 110 may be an electronic control unit (ECU).

[0081] Luggage item 20 may include memory 112. Memory 112 may be random access memory (RAM), read-only memory (ROM), a hard drive, flash memory, or other suitable memory for storing module(s). Memory 112 may include sensor data 119. As used herein, "sensor data" refers to any information regarding the sensor(s) equipped with luggage item 20, including the capabilities and other information regarding these sensors. For example, sensor data 119 may include information regarding the handlebar angle sensor 30s described herein.

[0082] Memory 112 may store a control module 213 for controlling various aspects of the luggage item 20 when used in driving mode. Luggage item 20 may include one or more such modules. The module(s) may be implemented as computer-readable program code that, when executed by processor(s) 110, implements one or more of the various processes described herein. One or more of the modules may be components of processor(s) 110, or one or more of the modules may be executed on and / or distributed across other processing systems operatively connected to processor(s) 110. A module may include instructions (e.g., program logic) executable by one or more processors 110. Alternatively or additionally, one or more of the data storage 115 or another portion of the luggage item 20 may contain such instructions.

[0083] Generally speaking, as used herein, modules include routines, programs, objects, components, data structures, and the like that perform specific tasks or implement specific data types. In other aspects, memory typically stores the modules mentioned. The memory associated with a module can be a buffer or cache embedded within a processor, RAM, ROM, flash memory, or other suitable electronic storage medium. In yet other aspects, the present disclosure contemplates modules implemented as application-specific integrated circuits (ASICs), hardware components of systems-on-chips (SoCs), programmable logic arrays (PLAs), or other suitable hardware components embedded with a defined set of configurations (e.g., instructions) to perform the disclosed functionality. In one or more arrangements, one or more of the modules described herein may include artificial intelligence or computational intelligence elements, such as neural networks, fuzzy logic, or other machine learning algorithms. Furthermore, in one or more arrangements, one or more of the modules described herein may be distributed across multiple modules described herein. In one or more arrangements, two or more of the modules described herein may be combined into a single module.

[0084] The control module 213 may include computer readable instructions that, when executed by the processor 110, cause the processor to control the rear wheel motor 42x to increase the driving force generated by the motor in proportion to the rearward angle to which the throttle 30h has been rotated as indicated by the angle sensor 30s. Figure 11 As can be seen, the control module 213 can also be configured to de-energize the motor when the throttle 30h is at a slightly rearward rotation angle to enable energy to be regenerated from the forward momentum of the luggage item 20 as it decelerates.

[0085] refer to Figure 5A and 11The control module 213 may include computer-readable instructions that, when executed by the processor 110, cause the processor to control the servo motor 60m to begin pressurizing the master cylinder 40c in response to the user rotating the throttle to a predetermined forward angle. The pressurization of the master cylinder 40c may cause the caliper 40n to contact the wheel hub, thereby decelerating or braking the wheel 40. The control module 213 may also include computer-readable instructions that, when executed by the processor 110, cause the processor to control the servo motor 40m to increase pressurization of the master cylinder 40c in response to further rotation of the throttle in direction R2. This may increase the pressure applied by the caliper 40n to the wheel 40, thereby increasing the braking force on the wheel 40. The control module 213 may also include computer-readable instructions that, when executed by the processor 110, cause the processor to control the servo motor 40m to decrease pressurization of the master cylinder 40c in response to rotation of the throttle 30h in direction R1. This may decrease the pressure applied by the caliper to the wheel 40, thereby decreasing the braking force. Furthermore, motor 42x may be configured to enable regeneration of energy from the forward momentum of luggage item 20 when caliper 40n is in frictional contact with wheel 40 (ie, when brake 40b is engaged). This energy may be diverted to battery 45 to help charge the battery.

[0086] The operation of the throttle and brake mechanisms will now be described with reference to the accompanying drawings.

[0087] In order to control the throttle to move the luggage item 20 forward, the handle 30h can be rotated backward in the direction R1, such as Figure 2B As shown. Figure 11 As shown, the control module 213 may be configured to control the operation of the motor 42x to increase the driving force generated by the motor in proportion to the rearward angle to which the throttle 30h has been rotated.

[0088] like Figure 11 As can be seen, to slow and stop the luggage item 20, the throttle handle can be rotated forward in direction R2. When the throttle handle 30h is at a slightly backward rotation angle, the motor 42x can be de-energized to regenerate energy from the luggage item's forward momentum as it decelerates. This energy can be diverted to the battery 45 to help charge it. When the user rotates the throttle handle 30h to a predetermined forward angle, the control module 213 can generate a signal to the servo motor 40m, thereby initiating active operation of the brake 40b. This causes the servo motor 40m to pressurize the cylinder 40c, causing the caliper 40n to frictionally engage the wheel 40.

[0089] The operation of the steering mechanism will now be described with reference to the accompanying drawings.

[0090] refer to Figure 1AThe wheeled luggage item 20 can initially be in transport mode. In this mode, the wheeled luggage item 20 can be manually pulled along the ground like a traditional suitcase. The wheeled luggage item 20 can be manually converted from transport mode to riding mode. To convert the wheeled luggage item 20 to riding mode, the first and second wheels 40, 42 can be unlocked from their respective stowed positions within the second portion 22m of the base's interior chamber and then rotated from the stowed positions (in direction G1 for wheel 40 and in direction G2 for wheel 42) to their respective deployed positions. The wheels 40, 42 can then be locked in their respective deployed positions.

[0091] The securing rod 94 can be moved from its second (locked) orientation (eg, Figure 1A 、 8 and 10A) to its first (unlocked) orientation (as Figure 10B ), so that the first coupling member 82 can be rotationally disconnected from the first gear block 80 and the second coupling member 92 can be rotationally disconnected from the second gear block 87, as previously described. This allows the first and second steering rods 30a, 30b to rotate independently of the gear set 78. The steering rods 30a, 30b can then be rotated to their respective raised or turned positions (e.g., as Figures 2 to 4 As shown), the first gear block 80 and the second gear block 87 do not need to be rotated.

[0092] Then, the securing lever 94 can be rotated back to the second orientation as previously described along direction DD2 to secure the engagement of the first coupling member's detent projection 82a with the first gear block's detent receptacle 80c and the second coupling member's detent projection 89a with the second gear block's detent receptacle 87c. This rotationally connects the steering levers 30a, 30b to the gear set 78, thereby enabling steering of the wheeled luggage item 20 when the user rides.

[0093] As previously described, when the fixed rod 94 is in the second orientation, the first gear block 80 is rotationally connected to the first steering rod 30a and is also rotatably coupled to the pinion 86 to which the torque transfer member 65 is rotationally connected. Furthermore, the second gear block 87 is rotationally connected to the second steering rod 30b and is also rotatably coupled to the pinion 86 to which the torque transfer member 65 is rotationally connected. Figure 7 and 9The simultaneous rotation of the first steering rod 30a in a first rotational direction W1 and the second steering rod in a second rotational direction W2 opposite the first rotational direction can generate rotation of the pinion 86 (including the pinion rotationally connected to the torque transmission member 65) in an associated first torque direction V1. The rotation of the pinion 86 (rotatably connected to the torque transmission member 65) in the direction V1 causes the torque transmission member 65 to rotate in the first torque direction V1. The rotation of the torque transmission member 65 in the first torque direction V1 pulls the attached first steering cable 70a, which pulls the first side portion T1 ( Figure 7 ), thereby rotating the wheel 40 about the kingpin axis and causing the wheel 40 to turn in the direction S1 ( Figure 7 ).exist Figure 9 In the illustrated view, in the riding mode, the first rotational direction W1 of the steering rod is in a forward direction of the moving wheeled luggage item 20, and the second rotational direction W2 is in a rearward direction of the moving wheeled luggage item 20. Thus, during powered forward motion of the luggage item 20, a user can steer the device in a direction toward a first side P9-a of the vertical plane P9 (i.e., toward the "left" side of the base 22 from the perspective of a user sitting on the luggage item) by simultaneously rotating the first steering rod 30a forward and the second steering rod 30b rearward. Figure 3 and 4 shown) steering.

[0094] Similarly, simultaneous rotation of the first steering rod 30a in the second rotational direction W2 and the second steering rod 30b in the first rotational direction W1 can cause the pinion 86 (including the pinion rotationally connected to the torque transmitting member 65) to rotate in a second torque direction V2 that is associated with the first torque direction V1. The rotation of the pinion 86 rotationally connected to the torque transmitting member 65 causes the torque transmitting member 65 to rotate in the first torque direction V2. The rotation of the torque transmitting member 65 in the second torque direction V2 pulls the second steering cable 70b, which pulls the second side portion T2 ( Figure 7 ), causing the wheels 40 to rotate about the kingpin axis and causing the wheels 40 to turn in a direction S2 opposite to the direction S1. Thus, during powered forward motion of the wheeled luggage item 20, the user can steer the luggage item in a direction toward the second side P9-b of the vertical plane P9 (i.e., toward the "right" side of the base 22 from the perspective of a user sitting on the luggage item) by simultaneously rotating the first steering rod 30a rearwardly and the second steering rod 30b forwardly. Figure 3 and 4 When turning in this direction, a portion of the wheel 40 will also enter the wheel mounting bracket cavity 60f.

[0095] Return to Figure 10A , the torque release spring 100 can be configured to apply a compressive force to the gear set 78 and the first coupling member 82 when the fixed rod 94 is in the second orientation. In order for the steering rods 30a, 30b to operate normally, when the torque applied to the first steering rod is below a predetermined level, the force of the torque release spring can be sufficient to maintain the first coupling member 82 in rotational connection with the first gear block 80.

[0096] refer to Figure 10C The first coupling member 82 and the first gear block 80 can be configured such that the first coupling member 82 can be rotationally disconnected from the first gear block 80 in response to a torque applied to the first steering rod 30a that is equal to or greater than a predetermined level, overcoming the force applied by the torque release spring. To achieve this effect, the side portions 82s of the detent projection 82a of the first coupling member and the walls 80w forming the side portions of the detent receptacle 80c of the first gear block can be complementarily inclined or "ramped" to enable the detent projection 82a to slide relative to the receptacle wall 80w in response to a torque applied to the first steering rod 30a that is equal to or greater than a predetermined level. This relative sliding motion can disengage the projection 82a from the receptacle 80c, thereby overcoming the compressive force applied by the spring 100 and disconnecting the first coupling member 82 from the first gear block 80. Thus, for example, if a rider applies excessive torque to the first steering rod 30a in either of the rotational directions W1 or W2, the applied torque may cause the pawl projection 82a to slide along the side 80w of the pawl receiving portion 80c, thereby tending to disengage the first coupling member 82 from the first gear block 80. This allows the first coupling member 82 to "slip" relative to the first gear block 80, thereby helping to prevent damage to the steering mechanism due to excessive steering torque.

[0097] Similarly, the second coupling member 92 and the second gear block 87 can be configured such that the second coupling member 92 can be rotationally disconnected from the second gear block 87 in response to a torque applied to the second steering rod 30b that is equal to or greater than a predetermined level, overcoming the force applied by the torque release spring. To achieve this effect, the side portions (not shown) of the detent projection 89a of the second coupling member and the walls (not shown) forming the side portions of the detent receptacle 87c of the second gear block can be complementarily inclined or "ramped" to enable the detent projection 89a to slide relative to the detent receptacle 87c in response to a torque applied to the second steering rod 30b that is equal to or greater than the predetermined level, as described above. This relative sliding motion can disengage the projection 89a from the receptacle 87c, thereby overcoming the compressive force applied by the spring 100 and disconnecting the second coupling member 92 from the second gear block 87. Thus, for example, if a rider applies excessive torque to the second steering rod 30b in either the rotational direction W1 or W2, the applied torque may cause the pawl projection 89a to slide along the wall of the pawl receiving portion 87c, thereby tending to separate the second coupling member 92 from the second gear block 87. This allows the second coupling member 92 to "slip" relative to the second gear block 87, thereby helping to prevent damage to the steering mechanism due to excessive steering torque. Thus, in the manner just described, the first coupling member 82 can be removably and rotatably connected to the first gear block 80, and the second coupling member 92 can be removably and rotatably connected to the second gear block 87.

[0098] In the above detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like symbols generally indicate like parts, unless the context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not intended to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the scope of the subject matter described herein. It will be readily understood that the various aspects of the present disclosure, as generally described herein and illustrated in the drawings, may be arranged, substituted, combined, separated, and designed in a variety of different configurations, all of which are expressly contemplated herein.

[0099] As used herein, the terms "a" and "an" are defined as one or more than one. The term "plurality," as used herein, is defined as two or more. The term "another," as used herein, is defined as at least a second or more. The terms "including" and / or "having," as used herein, are defined as comprising (i.e., open language). As used herein, the phrase "at least one of... and..." refers to and encompasses any and all possible combinations of one or more of the associated listed items. For example, the phrase "at least one of A, B, and C" includes only A, only B, only C, or any combination thereof (e.g., AB, AC, BC, or ABC).

[0100] While the features and conditions of the present invention have been described in conjunction with certain embodiments, it should be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements within the spirit and scope of the appended claims, which scope should be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures as is permitted under the law.

Claims

1. A wheeled luggage item comprising: a base defining an interior chamber; a liner configured to separate the interior chamber into a first portion and a second portion, the second portion being physically isolated from the first portion; as well as A wheel is rotatably coupled to the base so as to be movable between a stowed position within the second portion of the interior chamber and a deployed position outside the second portion of the interior chamber.

2. The wheeled luggage item of claim 1, wherein: The base includes a first edge, a first face extending along a first side of the first edge, and a second face extending opposite the first face along a second side of the first edge opposite the first side, and wherein the wheeled luggage item further comprises: a first steering rod receiving portion extending between the first edge and the first face; a second steering rod receiving portion formed between the first edge and the second surface; a first steering rod rotatably coupled to the base so as to be movable between a deployed orientation and a stowed orientation within the first steering rod receptacle; and A second steering rod is rotatably coupled to the base so as to be movable between a deployed orientation and a stowed orientation within the second steering rod receptacle.

3. The wheeled luggage item of claim 1 , further comprising a seat structure operably connected to the base, the seat structure comprising a first portion and a second portion extending from the first portion, the seat structure being rotatable relative to the base between a first orientation and a second orientation such that when the seat structure is in the first orientation and the wheeled luggage item is in the riding configuration, the first portion forms a sitting surface at a first height above the ground, and when the seat structure is in the second orientation and the wheeled luggage item is in the riding configuration, the second portion forms a sitting surface at a second height above the ground, the second height being greater than the first height.

4. The wheeled luggage item of claim 1 , further comprising: another wheel rotatably coupled to the base so as to be movable between a stowed position within the second portion of the interior chamber and a deployed position outside the second portion of the interior chamber; as well as An in-wheel motor is operatively connected to the other wheel to drive rotation of the other wheel during operation of the wheeled luggage item in the transport mode of the wheeled luggage item.

5. The wheeled luggage item of claim 4, further comprising a battery operatively connected to the in-wheel motor to enable the battery to provide power to the in-wheel motor.

6. A wheeled luggage item comprising: base; a steerable wheel rotatably coupled to the base so as to be movable between a stowed position and a deployed position; a first steering rod rotatably coupled to the base; as well as a second steering rod rotatably coupled to the base, The first steering rod and the second steering rod are operatively connected to the steerable wheel so that, when the steerable wheel is in the deployed position, steering of the steerable wheel is achieved by simultaneously rotating the first steering rod in one of a first rotational direction and a second rotational direction opposite to the first rotational direction and rotating the second steering rod in the other of the first rotational direction and the second rotational direction.

7. The wheeled luggage item of claim 6, wherein: the first steering rod being rotatably coupled to the base and adjacent a first face of the base; the second steering rod being rotatably coupled to the base and adjacent a second face of the base opposite the first face; and The first steering rod and the second steering rod are operably connected to the steerable wheel so that the steerable wheel can be steered in a first direction extending from the front-rear plane of the base toward the first side by simultaneously rotating the first steering rod in a first rotational direction and the second steering rod in a second rotational direction opposite to the first rotational direction, and the steerable wheel can be steered in a second direction extending from the front-rear plane of the base toward the second side by simultaneously rotating the first steering rod in the second rotational direction and the second steering rod in the first rotational direction.

8. The wheeled luggage item of claim 6, further comprising: a gear set operably connected to the base; as well as a torque transmitting member operatively connected to the gear set and the steerable wheels such that rotation of the torque transmitting member in a first torque direction causes the steerable wheels to rotate in an associated first direction and such that rotation of the torque transmitting member in a second torque direction causes the steerable wheels to rotate in an associated second direction, wherein the first steering rod and the second steering rod are operatively connected to the gear set such that simultaneous rotation of the first steering rod in the first rotational direction and the second steering rod in the second rotational direction produces rotation of the torque transmitting member in the first torque direction, And wherein the first and second steering rods are operatively connected to the gear set such that simultaneous rotation of the first steering rod in the second rotational direction and the second steering rod in the first rotational direction produces rotation of the torque transmitting member in the second torque direction.

9. The wheeled luggage item of claim 8, wherein: The gear set includes: a first bevel gear rotatably coupled to the base and configured to be rotatably connected to the first steering rod; a second bevel gear rotatably coupled to the base and configured to be rotatably connected to the second steering rod; and a pinion gear rotatably coupled to the base and located between the first bevel gear and the second bevel gear, wherein the torque transmitting member is rotationally connected to the pinion, wherein the pinion is configured to meshingly engage with the first bevel gear and the second bevel gear such that simultaneous rotation of the first steering rod in the first rotational direction and rotation of the second steering rod in the second rotational direction causes the pinion and the torque transfer member to rotate in the first torque direction.

10. The wheeled luggage item of claim 6, further comprising a steering knuckle operably connected to the base, wherein The hub of the steerable wheel is rotatably coupled to the steering knuckle via a kingpin so as to be rotatable about a kingpin axis of the kingpin, and wherein the wheeled luggage item further comprises: a first steering cable operatively connected to the first steering rod and a first side of the wheel hub such that application of a force to the first steering cable causes the steerable wheel to rotate in a first direction about the kingpin axis; and a second steering cable operatively connected to the second steering rod and a second side of the wheel hub opposite the first side of the wheel hub such that application of a force to the second steering cable causes the steerable wheel to rotate about the kingpin axis in a second direction opposite the first direction.

11. The wheeled luggage item of claim 10, wherein: The steering knuckle is incorporated into a wheel mounting bracket rotatably coupled to the base, and wherein the first and second steering cables extend along the wheel mounting bracket to the hub of the steerable wheel.

12. The wheeled luggage item of claim 11, wherein: The wheel mounting bracket has a first end rotatably coupled to the base, a second end engaged with the steering knuckle, and a body portion extending between the first and second ends, the body portion comprising: an outwardly extending portion configured to extend from the second end of the wheel mounting bracket in a direction away from the front-to-rear plane of the base when the wheel mounting bracket supports the steerable wheel in its deployed position; and an inwardly extending portion configured to extend from an end of the outwardly extending portion in a direction toward the front-to-rear plane of the base when the wheel mounting bracket supports the steerable wheel in its deployed position, The outwardly extending portion and the inwardly extending portion combine to define a cavity therebetween, the cavity being configured to receive a portion of the steerable wheel therein when the steerable wheel is rotated in the first direction.

13. The wheeled luggage item of claim 6, further comprising: a first coupling member rotatably connected to the first steering rod; a second coupling member rotatably connected to the second steering rod; a gear set mounted to the base between the first coupling member and the second coupling member; as well as a fixing rod operatively connected to the first coupling member and the second coupling member, Rotating the fixed rod to a first orientation enables the first and second coupling members to be rotationally disconnected from the gear set, and rotating the fixed rod to a second orientation pushes the first and second coupling members into rotational connection with the gear set, thereby rotationally connecting the first and second steering rods to the gear set.

14. The wheeled luggage item of claim 13, further comprising a securing shaft, wherein the securing rod is rotatably coupled to the securing shaft and in contact with the first coupling member, in, The first coupling member, the gear set and the second coupling member are positioned along the fixed axis, And wherein the first coupling member is movably mounted on the fixed shaft such that rotation of the fixed lever to the second orientation pushes the first coupling member along the fixed shaft toward the second coupling member, thereby rotationally connecting the first and second coupling members with the gear set.

15. The wheeled luggage item of claim 13, further comprising: a first spring interposed between the first coupling member and the gear set; as well as a second spring interposed between the second coupling member and the gear set, wherein the wheeled luggage item is configured such that rotation of the securing rod to the first orientation causes the first spring to urge the first coupling member away from and out of rotational connection with the gear set, thereby disconnecting the first steering rod from rotational connection with the gear set, and The rotation of the fixed rod to the first orientation further enables the second spring to push the second coupling member away from the gear set and out of rotational connection with the gear set, thereby disconnecting the second steering rod from rotational connection with the gear set.

16. The wheeled luggage item of claim 13, wherein: The first coupling member is configured to be removably rotationally connected to the gear set when the securing bar is in the second orientation, wherein the wheeled luggage item further includes a torque release spring configured to apply a force to the gear set and the first coupling member when the securing bar is in the second orientation, the force being sufficient to maintain the first coupling member in rotational connection with the gear set when the torque applied to the first steering bar is below a predetermined level, and wherein the first coupling member and the gear set are configured such that the first coupling member can be rotationally disconnected from the gear set in response to applying a torque equal to or greater than a predetermined level to the first steering bar to overcome the force of the torque release spring.

17. The wheeled luggage item of claim 13, wherein: The second coupling member is configured to be removably rotationally connected to the gear set when the securing bar is in the second orientation, wherein the wheeled luggage article further comprises a torque release spring configured to apply a force to the second coupling member and the gear set when the securing bar is in the first orientation, the force being sufficient to maintain the rotational connection of the second coupling member with the gear set when the torque applied to the second steering bar is below a predetermined level, And wherein the second coupling member and the gear set are configured such that the second coupling member can be rotationally disconnected from the gear set in response to applying a torque equal to or above a predetermined level to the second steering rod to overcome the force of the torque release spring.

18. An article of wheeled luggage comprising: a base defining an interior chamber; steerable wheels rotatably coupled to the base so as to be movable between a stowed position and a deployed position; a first steering rod rotatably coupled to the base; a second steering rod rotatably coupled to the base; a gear set operatively connected to the first steering rod and the second steering rod; a torque transmitting member operatively connected to the gear set such that simultaneous rotation of the first steering rod in one of a first rotational direction and a second rotational direction opposite the first rotational direction and the second steering rod in the other of the first rotational direction and the second rotational direction causes the torque transmitting member to rotate in the associated torque direction; as well as A first steering cable and a second steering cable are operatively connected to the torque transmitting member and the steerable wheel such that when the steerable wheel is in the deployed position, rotation of the torque transmitting member in the associated torque direction causes the steerable wheel to turn in the associated direction.

19. The wheeled luggage item of claim 18, wherein: The interior compartment is divided into a first portion and a second portion opposite and physically separated from the first portion, and wherein the wheeled luggage item further comprises: another wheel rotatably coupled to the base so as to be movable between a stowed position within the second portion of the interior chamber and a deployed position outside the second portion of the interior chamber; and An in-wheel motor is operatively connected to the other wheel to drive rotation of the other wheel during operation of the wheeled luggage item in a transport mode of the wheeled luggage item.

20. The wheeled luggage item of claim 18, wherein: The gear set includes: a first bevel gear rotatably coupled to the base and configured to be rotatably connected to the first steering rod; a second bevel gear rotatably coupled to the base and configured to be rotatably connected to the second steering rod; and a pinion gear rotatably coupled to the base and located between the first bevel gear and the second bevel gear, wherein the torque transmitting member is rotationally connected to the pinion gear. wherein the pinion is configured to meshingly engage with the first bevel gear and the second bevel gear so that rotation of the steering rod in one of the first rotational direction and the second rotational direction and rotation of the second steering rod in the other of the first rotational direction and the second rotational direction causes the pinion and the torque transmitting member to rotate in the associated torque direction.

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