Hub assembly and baby stroller

Abstract

A baby stroller is provided; and at least one hub assembly connecting the seat base with a bumper bar and a seat back of the baby stroller. The hub assembly includes a locking element displaceable between: an engaged state; a partially disengaged condition in which a locking element is received within the seat connector assembly housing but disengaged from a configuration extending from the bumper bar housing; thus, relative rotation between them is allowed to start a folding operation. In a fully disengaged state, the locking element is received within a configuration on the seat connector assembly housing and disengaged from a configuration extending from the seat base hub housing and the bumper bar housing; the seat connector housing is configured to allow relative rotation of the seat base hub and the bumper bar housing relative to the seat connector housing for folding thereof.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a hub assembly; and a stroller; and in particular to a hub assembly providing reclining and folding operations for a seat of a stroller. BACKGROUND

[0002] Most strollers or pushchairs have one or more front wheel assemblies mounted to a front frame, and two rear wheel assemblies mounted to a rear frame; with the front and rear frames being connected at a central hub. In many strollers or pushchairs, a single seat or carrycot is mounted in the vicinity of the hub; in some cases, interchangeable between a forward-facing “world-facing” configuration or a rear-facing “parent-facing” orientation.

[0003] Typically, the seat back of these strollers can be moved from an upright position to a semi-reclined position (and in some strollers to a fully reclined position) relative to the seat to facilitate the comfort / rest of a child or infant being transported by the stroller. Typically, to secure the child or infant in the stroller, a “bouncer” or “tummy” bar can also extend around the middle of the stroller.

[0004] Some strollers are also designed so that they can be folded into a smaller configuration for transportation (for example, in the boot, trunk or luggage compartment of a vehicle). This requires the removal and / or careful coordination of the movement of the seat back, seat base and bouncer bar relative to the seat hub; so that all parts are moved in the correct relative orientation to each other. The folding and unfolding operations must necessarily be intuitive, reliable and quick; particularly given the often unpredictable circumstances (and emotional state) in which parents / caregivers are required to work when looking after a baby or child. This folding / unfolding operation must also be able to be performed when the seat is in a forward-facing or parent-facing arrangement.

[0005] Some strollers are also designed so that they can support a seat, carrycot, car seat, or various combinations of two of these in various configurations, to provide for the relatively common situation of parents bringing children close together. In these situations, a second child is often born before the first child is able to walk independently or for long distances. At this point, it is often more convenient for the parents or caregivers to have a single stroller that is able to support both occupants, rather than having a separate stroller or pushchair for each child.

[0006] Accordingly, there is a need for strollers or pushchairs that are reconfigurable to handle situations where there is only one occupant and situations where there can be two occupants; and which have seats that provide functionality such as recline and / or fold when in a single configuration or when adapted to situations where there are multiple occupants.

[0007] Accordingly, there is a need for strollers or pushchairs that are reconfigurable to handle situations where there is only one occupant and situations where there can be two occupants; and which have seats that provide functionality such as recline and / or fold when in a single configuration or when adapted to situations where there are multiple occupants.

[0008] Accordingly, there is a need for strollers or pushchairs that are reconfigurable to handle situations where there is only one occupant and situations where there can be two occupants; and which have seats that provide functionality such as recline and / or fold when in a single configuration or when adapted to situations where there are multiple occupants. SUMMARY

[0009] The features and advantages of the present disclosure will be apparent from the following detailed description, from the claims, and from the accompanying drawings. Features and advantages of the present disclosure can be better understood by referring to the following detailed description in conjunction with the accompanying drawings. Embodiments of the present disclosure can be implemented in a variety of ways, some of which are described below.

[0010] According to a first aspect of the present disclosure, there is provided a hub assembly connecting a seat base with a stroller's bumper bar and a seat back of a seat, the hub assembly comprising:

[0011] a locking element displaceable between:

[0012] an engaged state in which the locking element engages with formations on the seat connector assembly housing, the bumper bar housing and the seat base hub housing to prevent relative rotation therebetween; and

[0013] a partially disengaged state in which the locking element engages with formations on the seat connector assembly housing and with formations extending from a first face of the seat base hub housing to prevent relative rotation therebetween; wherein in the partially engaged state the locking element is received within the seat connector assembly housing but is disengaged from formations extending from the bumper bar housing; thereby allowing relative rotation therebetween to initiate a folding operation; and

[0014] a fully disengaged state in which the locking element is received within formations on the seat connector assembly housing and is disengaged from formations extending from the seat base hub housing and the bumper bar housing; so as to allow relative rotation of the seat base hub and bumper bar housing with respect to the seat connector housing for folding thereof.

[0015] Preferably, the hub assembly further comprises a seat recline device for adjusting the relative inclination of the seat back shell relative to the second face of the seat base hub shell; the seat recline device comprising a recline actuator urged towards the seat back shell. Preferably, the recline actuator is urged towards the seat back shell by mating engagement of a ramped surface in the seat back shell with a corresponding ramped recess defined in the recline actuator, the recline actuator being urged by activation thereof by a user. The recline actuator can be activated via a cable attached thereto, the cable being pulled by a user by operation of a recline handle to rotate against the ramped surface of the seat back shell.

[0016] Preferably, the rotational axis of the seat recline device and one side of the seat base shell of the seat recline device is offset relative to the rotational axis of the other side of the seat base shell and the seat connector assembly shell.

[0017] Rotation of the seat back shell relative to the seat base hub shell and in proximity to the position of the bumper bar can be configured to urge the sliding element towards the seat base hub to a first position; wherein the sliding element in the first position displaces the primary locking element through the seat base hub shell and out of the engaged state into the partially disengaged state.

[0018] Continued rotation of the seat back shell relative to the seat base hub shell can be configured to further urge the sliding element towards the seat base hub and into a second position, wherein the sliding element in the second position displaces the primary locking element through the seat base hub shell from the partially engaged state into the fully disengaged state.

[0019] The first ramped surface of the seat back shell can be positioned and dimensioned to abut against a corresponding ramped surface of the sliding element upon rotation thereof. The second ramped surface of the seat back shell can be positioned and dimensioned to abut against a corresponding second ramped surface of the sliding element upon rotation thereof.

[0020] The aperture defined in the primary locking element can be configured to receive a corresponding post extending from the face of the seat connector shell and seat base shell for secure engagement therewith.

[0021] The face of the bumper bar shell can comprise a recess and a groove defined therein for receiving a corresponding reset pin extending from the seat back shell and for returning the bumper bar shell to an operational position.

[0022] In another aspect, there is provided a stroller comprising a frame having at least one pair of rear ground-engaging wheels and one or more front wheels, the frame supporting at least one hub assembly connecting a seat base to a bumper bar and a seat back, the at least one hub assembly comprising:

[0023] a locking element displaceable between:

[0024] an engaged state in which the locking element engages with formations on the seat connector assembly housing, the bumper bar housing and the seat base hub housing to prevent relative rotation therebetween; and

[0025] a partially disengaged state in which the locking element engages with formations on the seat connector assembly housing and formations extending from a first face of the seat base hub housing to prevent relative rotation therebetween; wherein in the partially engaged state the locking element is received within the seat connector assembly housing but is disengaged from formations extending from the bumper bar housing; thereby allowing relative rotation therebetween to initiate a folding operation; and

[0026] a fully disengaged state in which the locking element is received within formations on the seat connector assembly housing and is disengaged from formations extending from the seat base hub housing and the bumper bar housing; to allow relative rotation of the seat base hub and bumper bar housings relative to the seat connector housing for folding thereof.

[0027] The stroller can further comprise a seat recline device for adjusting the relative inclination of the seat back housing relative to a second face of the seat base hub housing; the seat recline device comprising a recline actuator urged towards the seat back housing.

[0028] The recline actuator can be urged towards the seat back housing by mating engagement of an inclined surface in the seat back housing with a corresponding inclined recess defined in the recline actuator, the recline actuator being urged by activation thereof by a user.

[0029] The recline actuator can be activated via a cable attached thereto to rotate against an inclined surface of the seat back housing, the cable being pulled by a user by operation of a recline handle.

[0030] Preferably, an axis of rotation of the seat recline device and a side of the seat base housing of the seat recline device is offset relative to an axis of rotation of the other side of the seat base housing and the seat connector assembly housing.

[0031] Rotation of the seat back shell relative to the seat base hub shell and proximate to the position of the bumper bar is configured to urge the sliding element towards the seat base hub to a first position; wherein the sliding element in the first position displaces the primary locking element through the seat base hub shell and out of the engaged state into the partially disengaged state.

[0032] Continued rotation of the seat back shell relative to the seat base hub shell further urges the sliding element towards the seat base hub and into a second position, wherein the sliding element in the second position displaces the primary locking element through the seat base hub shell from the partially engaged state into the fully disengaged state.

[0033] A first inclined surface of the seat back shell is positioned and dimensioned to abut against a corresponding inclined surface of the sliding element as it rotates. A second inclined surface of the seat back shell is positioned and dimensioned to abut against a corresponding second inclined surface of the sliding element as it rotates.

[0034] An aperture defined in the primary locking element is configured to receive a corresponding post extending from a face of the seat connector shell and seat base shell for secure engagement therewith. A face of the bumper bar shell includes a recess and groove defined therein for receiving a corresponding reset pin extending from the seat back shell and for urging the bumper bar shell to an operational position as the seat back shell rotates rearward relative to the seat base shell.

[0035] The seat connector assembly can be engaged with the frame of the stroller at a first position or a different second position thereon. The frame can be configured to receive one or more accessories at the other of the first or second positions when the seat connector assembly is engaged with the frame of the stroller at the first or second positions. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to describe the manner in which the above-recited and other advantages and features of the disclosure can be obtained, a more particular description can be had by reference to specific embodiments thereof which are disclosed in connection with the appended drawings. It is to be understood that the drawings are only illustrative of the embodiments of the disclosure and the principles thereof, which can be practiced in various embodiments and utilized for purposes other than the particular embodiments illustrated. It is to be understood that the principles of the disclosure can be employed to other embodiments or of the disclosure can be embodied in other forms without departing from the spirit or scope thereof.

[0037] Preferred embodiments of the present disclosure will be explained in further detail by way of example and with reference to the accompanying drawings in which:

[0038] FIG. 1AA frontal perspective view of an exemplary baby stroller according to this disclosure is depicted, wherein the seat is in a forward-facing orientation and wherein the seat back is in an upright position.

[0039] FIG. 1B Depicting according to FIG. 1A The present disclosure includes a front-view perspective view of an exemplary baby stroller in which the seat is oriented forward and the seat back is in a semi-reclined position.

[0040] FIG. 1C Depicting according to FIG. 1A The present disclosure includes a front perspective view of an exemplary baby stroller in which the seat is oriented forward and the seat back is in a fully reclined position.

[0041] FIG. 1D Depicting according to FIG. 1A The exemplary stroller described in this disclosure; wherein the seat back is in an upright position; viewed from a rear view (the seat is facing forward).

[0042] FIG. 1E Depicting according to FIG. 1A The exemplary stroller described in this disclosure; wherein the seat back is in an upright position; viewed from the side (the seat is in a forward-facing orientation).

[0043] FIG. 1F Depicting according to FIG. 1A The exemplary stroller disclosed herein; wherein the seat back is in an upright position; viewed from the side and wherein the seat is oriented towards the parents.

[0044] FIG. 2A The text depicts the initial state of the seat before it is folded (an upright, forward-facing seat). FIG. 1A The exemplary baby stroller described in this disclosure.

[0045] FIG. 2B Depicting the process during folding FIG. 2A An example baby stroller.

[0046] FIG. 2C Depicting the situation compared to FIG. 2B The folding process described in the text progresses to a further stage. FIG. 2A An exemplary baby stroller; wherein the seat back, cushioning bar, and base are close to each other and can be further rotated.

[0047] FIG. 2D Depicting what happens after folding is complete. FIG. 2A An exemplary baby stroller; wherein the seat back, base, and bumper bar are relative to FIG. 2C The state depicted in the image rotates forward.

[0048] FIG. 2E Depicting what happens after folding is complete. FIG. 2A An exemplary baby stroller; wherein the seat back, base and bumper bar rotate backward.

[0049] FIG. 2F The image depicts the scene after folding is complete and the outriggers are folded together with the seat. FIG. 2A An example baby stroller.

[0050] FIG. 3A Depicting FIG. 1A An exemplary side view of a baby stroller is depicted, in which the seat is attached to the frame in a first position.

[0051] FIG. 3B Depicting FIG. 1A An exemplary side view of the stroller depicted shows the seat moved forward to a second position attached to the stroller frame.

[0052] FIG. 3C Depicting FIG. 3B An exemplary view of a baby stroller in which an additional seat has been added in a tandem configuration.

[0053] FIG. 3D An exemplary internal view of a baby stroller frame is depicted, showing a first position and a second position.

[0054] FIG. 3E An exemplary perspective view of a seat connector on a seat, the seat connector being inserted into... FIG. 3C Either the first or second position on the frame depicted in the diagram.

[0055] FIG. 3F An exemplary close-up view depicts a fixing mechanism for engaging the seat with the frame in an assembled state.

[0056] FIG. 3G An exemplary exploded perspective view depicts a fixing mechanism for engaging the seat with the frame in an assembled state.

[0057] FIG. 4A Depicting the most compact (shortest) backrest setting FIG. 1A An exemplary frontal perspective view of a baby stroller seat.

[0058] FIG. 4B Depicting the most extended backrest setting FIG. 1A An exemplary front-view stereoscopic view of a baby stroller.

[0059] FIG. 4C Depicting the most compact (shortest) backrest setting FIG. 1AAn exemplary rear-view perspective view of a stroller seat; in which the rear cover has been removed.

[0060] FIG. 4D Depicting the most extended backrest setting FIG. 1A An exemplary rear-view perspective view of a stroller seat, with the back cover removed.

[0061] FIG. 5A A seat hub and attached bumper bar of an exemplary stroller embodiment of the present disclosure are depicted.

[0062] FIG. 5B Depicting FIG. 5A An exploded left-side perspective view depicting the seat hub and attached bumper bar.

[0063] FIG. 5C Depicting FIG. 5A An exploded right-side perspective view of the seat hub depicted in the image.

[0064] FIG. 6A Depicting FIG. 1A The image depicts an internal side view of the seat back shell component of a baby stroller.

[0065] FIG. 6B The lower side of the inclined gear actuator is depicted, which is received in FIG. 6A The seat back shell component depicted in the image.

[0066] FIG. 6C Describes when inserted FIG. 6A In the seat back shell components FIG. 6B The inclined gear actuator.

[0067] FIG. 7A Describing the operation FIGS. 6A-6C An exemplary view of the seat back housing component shows how a reclining tooth actuator moves to push the reclining tooth component out of engagement with the teeth in the seat back hub, thereby allowing the seat back to rotate and thus recline or fold.

[0068] FIG. 7B Depicting FIG. 6A An internal view of the seat back shell component, wherein the inclined tooth engages with the corresponding tooth of the seat back shell component and is on top of the inclined tooth actuator in the retracted state.

[0069] FIG. 8A A top perspective view of a sliding element is depicted, which is received in the periphery of the distal side of the seat base hub.

[0070] FIG. 8B Depicting FIG. 8A A bottom-view perspective of the sliding element.

[0071] FIG. 8C A perspective view of the primary locking element is depicted.

[0072] FIG. 9A An exemplary side view of the proximal face of the seat base hub shell and the sliding element in a state where the seat base shell, the bumper bar shell and the seat connector assembly are engaged is depicted.

[0073] FIG. 9B An exemplary side view of the proximal face of the seat base hub shell and the sliding element is depicted showing the post of the sliding element partially protruding from the surface of the proximal face of the seat base hub assembly.

[0074] FIG. 9C An exemplary side view of the seat base hub assembly is depicted showing the post of the sliding element further protruding from the proximal surface of the seat base hub assembly.

[0075] FIG. 10A A side perspective view of the seat connector shell is depicted from the inside; and wherein other components have been removed for clarity, wherein the primary locking element is in its state of fully locking the seat connector, the bumper bar and the seat base hub.

[0076] FIG. 10B A side perspective view of the seat connector shell is depicted from the inside; and other components have been removed from this side perspective view for clarity, wherein the primary locking element is in its state of locking the seat connector and the seat base hub, but wherein the bumper bar is rotatable.

[0077] FIG. 10C A side perspective view of the seat connector shell is depicted from the inside; and other components have been removed from this side perspective view for clarity, wherein the primary locking element is in its state of allowing the seat connector, the bumper bar and the seat base hub to rotate.

[0078] FIG. 11A A side view of the distal face of the bumper bar shell is depicted from the seat connector shell.

[0079] FIG. 11B A side view of the proximal face of the bumper bar shell is depicted; closest to the seat connector shell.

[0080] FIG. 11C A distal face of the bumper bar shell assembly in a folded position and an internal perspective view of the seat connector shell in a folded state is depicted, wherein other components have been removed for clarity.

[0081] FIG. 11D A side view of the hub assembly is depicted when the seat is in a fully folded position; and wherein the position of the bumper bar reset pin is marked for clarity.

[0082] FIG. 11E depicts a side view of the hub assembly when the seat has transitioned to a state where the bumper bar has been fully deployed; and wherein, for purposes of explanation, the position of the bumper bar reset pin has been marked.

[0083] FIG. 11F depicts a side view of the hub assembly when the seat back continues to rotate, and wherein, for purposes of explanation, the position of the bumper bar reset pin has been marked.

[0084] FIG. 12 depicts a cross-sectional view of an exemplary hub assembly. DETAILED DESCRIPTION

[0085] Various embodiments of the present disclosure are discussed in detail below. While specific implementations are discussed, it should be understood that this is done for illustration purposes only. A person skilled in the relevant art will recognize that other components and configurations can be used without parting from the scope of the present disclosure.

[0086] REFERENCE FIGS. 1A-1F depicts an exemplary stroller 10 that includes a frame 12 that supports a seat 20 on which a child or infant sits. The seat 20 includes a seat base 22, a seat back 24, and a bumper bar or belly bar 26.

[0087] As FIGS. 1A-1E depicted, the seat can be attached to the frame in a forward-facing orientation. Alternatively, as FIG. 1F depicted in

[0088] As FIG. 1A depicted, the seat back can be positioned in an upright position, thereby supporting an infant or child when seated. The seat back 24 can be reclined relative to the seat base, as FIG. 1B depicted, and further reclined to a fully reclined position of the seat back 24 relative to the seat base 22 as FIG. 1C depicted, as the infant or child becomes more tired.

[0089] As FIG. 1D depicted, a rear perspective view illustrates the stroller also shown in FIG. 1A with the seat in a forward-facing orientation and in an upright position. For completeness, a side view of the same stroller, depicted in FIG. 1A is depicted in FIG. 1E with the forward-facing seat arrangement and upright seat back, while a side view is depicted in FIG. 1F for reference with the parent-facing upright seat back.

[0090] It should be understood that the reclining function of the seat back 24 relative to the base enhances the functionality and comfort of the occupant, and thus enhances the functionality and comfort of the parents and caregivers. The buffer bar 26 ensures that the child is restrained / confined within the seat 20 during movement.

[0091] like FIGS. 2A-2F As depicted, preferably, the seat back 24 can be folded toward the seat base 22 of the seat 20 of the stroller 10 by rotating about the seat hub 23, so as to enable transport and / or storage. It should be understood that even when the seat is positioned in a parent-oriented orientation, substantially the same process will be followed.

[0092] FIG. 2A Depicting FIG. 1A The stroller has a seat back 24 in an upright position. In this position, the bumper bar 26 and the seat back 24 are locked and cannot move relative to the frame 12 of the stroller 10.

[0093] like FIG. 2B As depicted herein, the handle 27 on the back of the seat back 24 can be actuated to fold the seat back 24 toward the seat base 22. As further described herein, when the seat back 24 is rotated to approach the buffer bar 26, the buffer bar is unlocked and moves with the seat back. In this position, the seat base remains locked relative to the frame 12 of the stroller 10.

[0094] like FIG. 2C As depicted herein, when the seat back 24 and the cushioning bar 26 approach the seat base 22, the seat base is configured to unlock from the frame, as further described herein. Once the seat base 22, seat back 24, and cushioning bar 26 are freely movable relative to the frame 12, these components can rotate to... FIG. 2D The positions depicted in the image. Alternatively, the seat base 22, seat back 24, and bumper bar 26 can rotate in opposite directions toward the rear wheels of the stroller 10, as shown in the image. FIG. 2E As depicted in [the text]. FIG. 2E The location depicted in the middle or FIG. 2D As depicted, the rear wheels can be moved toward the front wheels to further fold the stroller 10. FIG. 2F The location depicted in the text.

[0095] Advantageously, such as FIG. 3A As depicted, the exemplary stroller 10 may include a seat 20, which is advantageously attached to the frame 12 in a first position via a seat hub 23. This position on the frame is indicated by a solid arrow "A" and is located at the frame folding hub 30.

[0096] An alternative second position may also be provided, in which the attachment point of the seat hub 23 on the frame 12 is spaced forward relative to the frame hub 30, as depicted by the dashed arrow (marked "B"). In the illustrated exemplary arrangement, the spacing between the centers of the seat hubs attached to the frame in the first position may be in the range of 100 mm to 130 mm, and more preferably 120 mm where appropriate.

[0097] like FIG. 3B As depicted, the seat 20 can be moved to a second position in front of the frame hub 30 on the frame of the stroller 10, as indicated by the solid arrow in the figure. The dashed arrow indicates the previous attachment point between the seat hub 23 and the frame 12 of the stroller 20.

[0098] If seat 20a is positioned at FIG. 3B The forward position depicted in the diagram can be used to create additional space for use of the stroller 10 in a tandem configuration, an example of which is shown in... FIG. 3C As depicted, in the depicted exemplary embodiment, the rear section 15 has been extended to facilitate the second / rear seat attachment 20b.

[0099] It should be understood that many other different cascade arrangements may be used without departing from the scope of this disclosure. However, as depicted, in FIG. 3C In the exemplary tandem arrangement shown, additional space for attaching the second or rear seat 20b to the vicinity of the rear wheel provides additional space for a child to sit behind the first seat 20a.

[0100] Alternatively, if a platform instead of a seat is provided for tandem mode, older children can stand on such a platform, where additional space is created by the forward movement of the first seat away from the rear wheels.

[0101] It should be understood that such arrangements are exemplary, and without departing from the scope of this disclosure, optional features of the stroller disclosed herein may be implemented, and a wide variety of arrangements and configurations of platform / attachment seat / lightweight crib / car seat arrangements may be implemented.

[0102] refer to FIG. 3D Examples of exemplary attachment mechanisms exist at a first position and a second position on the frame 12 of the stroller. As depicted, a first slot 14 is defined on the frame at the first position by guide rails 16a, 16b. A second slot 18 is defined on the frame 12 at the second position by two guide rails 19a, 19b.

[0103] Advantageously, the locking hole 21 can be provided to secure the post of the seat connector extending from the seat hub in the first and second slots. Optionally, as depicted, there can be a protrusion 17 provided on the front rail 19a such that this protrusion will block the insertion of a seat (not shown) and thus block the insertion of the seat 20 in the parent-facing orientation.

[0104] As FIG. 3E depicted in FIG. 15, the seat connector 25 of the seat can be configured such that the relative width as depicted in the dimension labeled A-A is wider than the corresponding width at the location labeled B-B on the other side of the seat connector 25. The protrusion on the frame of the stroller (depicted as 17 in FIG. 15) and the asymmetric shape of the seat connector 25 prevent the seat connector 25 from being inserted in the second slot when parent-facing and thereby avoid potential instability issues that can result from the seat being so far forward on the frame 12 of the stroller 10 in the parent-facing orientation. FIG. 3D

[0105] FIG. 3F A side view of the hub 23 of the seat is depicted. As depicted, the seat hub 23 includes a button 32 provided on the top of the seat connector housing 25. Actuation of the button 32 in the direction labeled “A” will cause the locking protrusion 34 to retract (move in the direction labeled “B”), thereby allowing the seat 20 to be detached from the frame (not shown) of the stroller.

[0106] This is depicted in more detail in the exploded view of the hub 23 of the seat in FIG. 16. As can be seen in this figure, the button 32 and the locking protrusion 34 each have a resilient biasing device 33a, 33b and 35, respectively. FIG. 3G

[0107] FIG. 4A and FIG. 4B An optional feature of the embodiment of the seat 20 of the stroller of the present disclosure is depicted - the adjustable length of the seat back 24 - as seen from a front perspective view. As depicted in FIG. 17, the seat back 24 can be lengthened from a first, shortest or lower position to an extended or highest position as depicted in FIG. 18. FIG. 4A FIG. 4B This adjustment is advantageous as the occupant of the stroller inevitably grows relatively quickly and this feature can help to maximize the duration for which the stroller can be used.

[0108] As depicted, the seat recline handle 27 is visible, thereby facilitating adjustment of the relative inclination of the seat back 24 relative to the seat base 22 of the seat 20 first.

[0109] As FIG. 4C ​​​As depicted, seat height adjustment can be provided by including an upper frame 36 that is slidably supported on the lower frame 34. The upper frame 36 can be slid upward after actuation of the seat extension button 38; and disengages the frames from one another, thereby allowing the seat back 24 to be reclined from FIG. 4C to the length depicted in FIG. 4D . For ease of reference, the soft outer cover has been removed.

[0110] Reference is now made to FIG. 5A , which depicts an isolated perspective view of the bumper bar 26 and one side of the seat hub 23 as positioned on one side of the stroller 10 of FIGS. 1A-3C ; and on the seat 20 of FIGS. 4A-4D . It will be appreciated that the hub as described herein can also be fitted to both sides of the seat and configured to be actuated simultaneously by the user; or one active hub as described herein is provided on one side; with a simplified version provided on the other side without departing from the scope of the present disclosure.

[0111] Reference is now made to FIG. 5B , which depicts an exploded view of the bumper bar 26 and seat hub 23 as depicted in FIG. 5A . The function of the seat connector 25 is as described with reference to FIGS. 3F-3G .

[0112] The depicted components cooperate together to achieve the function depicted in FIGS. 1A-1F of reclining the seat back relative to the seat base; and the folding operation depicted in FIGS. 2A-2F .

[0113] During the reclining operation, advantageously, the orientation of the bumper bar 26 remains fixed relative to the seat base 22 and the seat back 24. As described further herein, the folding operation begins when the seat back 24 has been pushed forward to approximate the bumper bar 26. At this point, no child or infant is logically possible in the stroller or the folding pram.

[0114] Once the folding operation begins, the bumper bar is then unlocked and able to move towards the seat base 22, with the operational details within the seat hub that make this possible described hereinafter. As the bumper bar 26 and the seat back 24 approximate the seat base, these three components are rotatable together relative to the seat base connector 25.

[0115] The components of the seat hub 23 that provide these functions are depicted in FIG. 5B .

[0116] It can be seen in this figure that the button 32 and the locking protrusion 34 each have resilient biasing means 33a, 33b and 35 respectively.

[0117] A fastening bolt (not shown) secures the seat connector 25 seat connector assembly housing 127 to the seat base hub 160. The primary lock element spring 129 biases the primary lock element 130 against and into engagement with the cushion rod base housing 140 and in turn against a side of the seat base hub housing 160 such that the seat base (not shown, but extending therefrom) is locked in place.

[0118] Beginning on the right side of the figure, the seat back housing 220 is held in engagement with the other side of the seat base hub housing 160 by a bolt 222. Adjustment and retention of the relative recline of the seat back (not shown) relative to the seat base (not shown) is provided by engagement and disengagement of the recline cog 200 with corresponding protrusions of the seat base hub housing 160 and the seat back housing 220.

[0119] Engagement and disengagement of the recline operation is facilitated by the recline cog actuator 210, which pushes the recline cog 200 toward and away from the seat back housing 220, which will be further described herein. The cog return spring 190 biases the recline cog 200 against and into engagement with the recline cog actuator 210 and together with the inner face of the seat back housing 220. Also depicted is a cushion rod return pin 230 and return pin spring 232, which returns the cushion rod to an operational position after a deployment operation, as will be further described herein.

[0120] Also depicted is a slide element 180, which can protrude through the seat base hub housing 160 and depending on the position of the slide element, laterally moves the primary lock element 130 between:

[0121] An operational position in which the seat base is locked by engagement of the primary lock element 130 with the formations on the inner face of the seat connector assembly housing 127, the formations on the proximal face of the cushion rod housing 140, and the formations on the proximal face of the seat base hub housing 160, where such engagement in this position is substantially independent of the position of the seat back (except in the case of the seat back approaching the cushion rod position);

[0122] Fold start position (the position when the seat back shell 220 (and thus the seat back) is rotated to access the bumper bar 126). In this position; the primary locking element 130 (via the slidable element 180) translates laterally and towards the inner face of the seat connector assembly 127; and the teeth of the primary locking element move out of engagement with the formation on the bumper bar shell 140. Once out of engagement, the bumper bar shell (and thus the bumper bar) becomes freely rotatable relative to the seat base hub shell 160. However, in this position, the seat base is still locked in place by the engagement of the primary locking element with the formation on the inner face of the connector assembly shell 127, and the proximal side of the seat base hub shell 160;

[0123] Folded position, where the primary locking element is substantially housed within the seat connector assembly shell 127 (meaning that the bumper bar continues to be able to move relative to the base; and that the seat base is no longer fixed relative to the connector assembly). This is because the primary locking element 130 has translated to disengage from the formation on the proximal face of the seat base hub shell 160.

[0124] Referring to FIG. 5C , a right perspective exploded view of the bumper bar 26 and seat hub 23 depicted in FIG. 5A is depicted. As depicted, the seat back shell 220 is attached to the seat base hub shell 160 via the bolts 222.

[0125] As set out above, the recline function is provided by the mutual engagement of the recline lock actuator 210 and the recline cog 200, which are biased into engagement with the formation extending from the inner face of the seat back shell by the return spring 190. The distal face of the bumper bar base shell 140 is also visible and notable. The slidable element 180 interacts with the seat base hub shell 160 in the folding operation, as will be further described herein. The bumper bar return pin 230 and the bumper bar return pin spring 232 are also visible.

[0126] It can be seen that in this figure, the button 32 and the locking protrusion 34 each have resilient biasing means 33a, 33b and 35 respectively.

[0127] Fastening bolts (not shown) secure the seat connector assembly shell 127 of the seat connector 25 to the seat base hub 160. The primary locking element spring 129 biases the primary locking element 130 against and into engagement with the bumper bar base shell 140, and in turn against the side of the seat base hub shell 160, such that the seat base (not shown, but extending therefrom) is locked in place.

[0128] Starting from the right side of the figure, the seat back shell 220 is held in engagement with the other side of the seat base hub shell 160 by way of bolts 222. Adjustment and retention of the relative recline of the seat back (not shown) relative to the seat base (not shown) is provided by way of engagement and disengagement of the recline cog 200 with the corresponding protrusions of the seat base hub shell 160 and the seat back shell 220.

[0129] A fastening bolt (not shown) secures the seat connector assembly shell 127 of the seat connector 25 to the seat base hub shell 160. The main locking element spring 129 biases the main locking element 130 against and into engagement with the cushion rod base shell 140, and in turn against a side of the seat base hub shell 160, such that the seat base (not shown, but extending therefrom) is locked in place.

[0130] The button 32 and the locking protrusion 34 each have a resilient biasing means 33a, 33b and 35 respectively.

[0131] Referring to FIG. 6A , an exemplary view of the inner face of the seat back shell 220 is depicted. The formation 223 (in this case, a toothed recess for engagement with a corresponding protrusion of the recline cog (not shown)) can be seen. Three ramp elements 224 extend around the central axis and engage with corresponding ramped recesses formed in the recline cog actuator (not shown), but in FIG. 6B are depicted.

[0132] It will be appreciated that the three ramp elements are exemplary only, and that additional and / or alternative numbers or arrangements can also be utilised. An additional double ramp 225 is depicted as interacting with the sliding element 180, as will be described further herein. The double ramp 225 comprises a first ramped surface 226A, a first flat surface 226B, a second ramped surface 226C and a further flat surface 226D. The interaction of this double ramp 225 with the sliding element 180 will be described with reference to the sliding element depicted in FIGS. 8A-8B .

[0133] Referring to FIG. 6B , a plan view of the recline cog actuator 210 is depicted, having ramped recesses 212 configured to engage with the corresponding ramp elements 224 of the seat back shell depicted in FIG. 6A .

[0134] As FIG. 6CAn exemplary view of the inner face of the seat back shell 220 is depicted in the middle depiction. As depicted, a cable, represented in this figure by a dashed line, is attached at a fixed point on the circumference of the recline cog actuator 210. When this cable is pulled in the direction labeled "A" (e.g., by actuating a recline handle on the seat back (not shown)), the recline cog actuator 210 rotates; and the tilt recess (not visible) bears against the ramp element and pushes the recline cog actuator 210 upward and away from the inner face of the seat back shell 220.

[0135] As FIG. 7A depicted in the middle depiction, this movement of the recline cog actuator 210 bears against the recline cog 200; overcoming the biasing force of the recline cog return spring 190. Once this force is overcome, the recline cog 200 moves out of engagement with the formation 223 on the inner face of the seat back shell 220. This allows relative movement of the seat back hub shell 220 with respect to the seat base hub shell 160; and the relative displacement of the teeth of the recliner can be seen by dl labeled on this figure. The dual ramp 225 is also visible in this figure.

[0136] This can be contrasted with the position of the recline cog 200 depicted in FIG. 7B (where the teeth of the recline cog have retracted and are received within a formation of the inner face of the seat back shell 220, and the relative displacement of the teeth of the recliner can be seen by d2 labeled on this figure). In FIG. 7B the state depicted in the middle depiction, it can be appreciated that the seat back cannot be rotated to recline or fold, as the engagement of the recline cog prevents this. The dual ramp 225 is also visible in this figure, and will be discussed further.

[0137] Referring now to FIG. 8A , a top view of the slide element 180 is depicted; where the top face is received in the distal side of the seat base hub shell (not shown). The slide element 180 includes a first ramped surface 182A, a flat surface 182B, a second ramped surface 182C, and a further flat surface 182D. These surfaces bear against corresponding dual ramps 225 protruding from the inner surface of the seat back shell in a manner described further herein.

[0138] Referring now to FIG. 8B , a bottom view of the slide element 180 is depicted, depicting three posts 184 extending therefrom and passing through the seat base hub shell. These posts urge the primary locking element out of engagement with the cushion base shell, as will be described further herein with reference to FIGS. 9A-9C .

[0139] Referring to FIG. 8C, depicting an isometric view of the primary locking element 130 that rotates with the seat connector once the system is fully unlocked and the folded seat back and seat base are rotated on the frame. During the seat recline and seat fold operation, the primary locking element translates laterally and is pushed into the seat connector housing. A captive bolt extends through the central aperture 131 of the primary locking element 130. Apertures 132 can engage with corresponding “D-shaped” abutments extending from the seat connector housing and corresponding “D-shaped” abutments extending from the seat base hub housing, such engagement helps to enhance the locking strength.

[0140] Tooth 134 is a stepped tooth; upper portion 134a engages at its periphery with a corresponding recess formed in the annular periphery of the bumper bar housing (not shown); and wherein lower portion 134b can engage with the seat connector housing (not shown) and the seat base hub housing (when locked). When the seat base hub housing is unlocked, the lower portion of tooth 134b is also fully received within the seat connector housing, as will be described herein.

[0141] Post 135 can engage with and enhance the locking with a corresponding recess formed in the bumper bar housing proximal face (not shown).

[0142] It should be understood that while as depicted, the primary locking element 130 is in the form of a generally circular “cog”; it should be understood that other overall perimeter shape profiles are possible without departing from the scope of the present disclosure. Tooth 134 of locking element 130 needs to be stepped to provide the functionality described herein (particularly, bumper bar rotation without seat base / seat back unlock). As depicted, various shapes and cutouts of the primary locking element are provided to enhance overall compactness, with the goal of the hub extending as little as possible into the space to be occupied by the occupant.

[0143] Referring to FIG. 9A , depicting a view of the proximal face of the seat base hub housing 160.

[0144] As depicted; the three posts 184 of the sliding element do not protrude beyond the proximal face of the seat base hub housing; but are visible.

[0145] In this view, the primary locking element (not shown) has been removed for clarity; but is engaged with the seat base hub housing 160, the bumper bar base housing (not shown), and the seat connector housing (not shown) and prevents seat base movement in the state of the seat base hub / sliding element depicted in FIG. 9A

[0146] ​In particular, the teeth of the primary locking element (not shown) are configured so that they are complementary to and engageable with corresponding protrusions 162 extending from the proximal face of the seat base hub housing 160 and the proximal surface of the bumper bar base housing (not shown).

[0147] As FIG. 9B depicted in FIG. 6, the sliding element is pushed against the distal surface of the seat base hub housing 160 and the post 184 partially protrudes from its proximal surface. This is because the seat back (and thus the seat back housing (not shown)) has been rotated far enough so that the sliding element is pushed onto the first inclined surface of the sliding element.

[0148] In this figure, it can be seen that the post 184 of the sliding element protrudes relatively more from the distal surface of the seat base hub housing 160 than in FIG. 9A depicted in FIG. 5. In this state, the primary locking element has moved laterally because the sliding element has been pushed by the first inclined surface of the ramped portion of the seat back housing, thereby being pushed against the first inclined surface of the sliding element. The protrusion of the post disengages the upper teeth from the bumper bar housing (not shown) and allows relative movement of the housing (and thus the attached bumper bar). At the same time, in this state, the lower teeth of the locking element maintain engagement with the seat base hub housing and the seat post; thereby locking the seat.

[0149] As FIG. 9C depicted in FIG. 7, the post 184 of the sliding element protrudes further from the proximal surface of the seat base hub housing 160 (relative to both the FIG. 9A , FIG. 9B proximal surface of the seat base hub housing 160 and the distal surface of the seat back housing). This is because the seat back (and thus the seat back housing (not shown)) has been rotated far enough so that the second inclined surface of the sliding element is in contact with the corresponding ramped surface in the distal surface of the seat base hub housing.

[0150] The protruding post 184 pushes the sliding element laterally and further into the seat connector assembly housing; thereby disengaging the lower teeth from the seat base hub housing. In this position, the primary locking element no longer engages the seat base hub with the seat connector housing. This allows the seat base, the seat back, and the bumper bar to rotate freely. The seat base and the bumper bar rotate about the lower axis labeled “A”, while the seat back rotates about the upper axis labeled “B”.

[0151] Further reference to the corresponding FIGS. 10A-10C the folding operation can be further understood, these figures depict the inner face of the seat connector housing 127 of the seat connector housing 25 and its interaction with the primary locking element 130.

[0152] In FIG. 10AIn the state depicted, the longer (radially outwardly extending) portions of the teeth 134a of the primary locking element 130 are able to engage the cushion rod housing (not shown) with the depicted seat connector housing 127, given the relative height of the primary locking element protruding from the housing 127.

[0153] At the same time, the lower portions of the teeth 134b engage with formations 123 formed in the inner face of the seat connector housing 127, and the seat base hub housing (not shown). When the primary locking element is in this state; the seat base hub is locked with the seat connector assembly; and thus, the seat base cannot rotate relative to the seat back. In this position, the primary locking element also locks the cushion rod housing with the seat connector assembly.

[0154] As the upper portions of the teeth 134a of the primary locking element 130 are pushed towards the corresponding formations 123 defined in the inner face of the seat connector housing (not shown) by rotation of the sliding element (but see FIG. 9B description), these teeth disengage from the corresponding formations of the cushion rod housing. This is depicted in FIG. 10B At the same time, the lower portions of the teeth 134b remain engaged with the formations 123 formed in the inner face of the seat connector housing as depicted. When the primary locking element is in this state, the cushion rod housing can rotate freely; but the seat base hub housing is locked with the seat connector assembly 25; and thus the seat cannot rotate.

[0155] Next, as shown in FIG. 10C depiction), the upper portions of the teeth 134a and the lower portions of the teeth 134b of the primary locking element are pushed further into the corresponding formations 123 defined in the inner face of the seat connector housing 127 by rotation of the sliding element (but see FIG. 9C description). When the primary locking element is in this state, the cushion rod housing can still rotate freely; and the seat base hub housing (not shown) is unlocked from the seat connector assembly 25; and thus the seat can now rotate.

[0156] Referring now to the side view of the distal face of the cushion rod housing 140 depicted in FIG. 11A a recess 142 formed in the distal face of the housing is depicted. A cushion rod reset pin (not shown) is biased against this recess by a pin reset spring (not shown). In the folding operation, as the cushion rod moves with the seat base, the pin is housed within the recess. Also depicted are some locating tabs 146 proximate to the internal void of the cushion rod housing, where these are received within corresponding recesses (not shown) defined in the seat base hub housing (not shown).

[0157] As will be described below with reference to FIGS. 11D-11FDescribed in more detail, as the bumper bar returns to the vicinity of its original position during the unfolding operation, the bumper bar reset pin 230 has travelled past the recess 142; and is located at or near the groove 144, which is also defined in the distal face of the bumper bar base housing 140.

[0158] In this position; the force applied by the bumper bar reset pin can be adjusted by the shape of the edge of the recess and / or the strength of the spring used. The bumper bar reset pin 230 is pushed against the edge of the recess 142 until the bumper bar housing 140 reaches its fully upright / full range of travel (where the locating tab 146 stops further movement). Further rotation of the seat back relative to the seat base pushes the pin 230 against the pin reset spring 232, retracting the bumper bar reset pin. In its retracted state, the pin is able to move up and over the top / corner edge of the recess 142 and travel along the groove 144.

[0159] If the bumper bar reset pin is not present, the bumper bar will not automatically return to its upright / operational position and will need to be manually returned by the user rotating the bumper bar itself.

[0160] As FIG. 11B depicted in the side view of the proximal face of the bumper bar. The formation 147 which engages with the teeth of the primary locking element is visible.

[0161] FIG. 11C An exemplary internal perspective view of the distal face of the bumper bar housing 140 in the folded position and the seat connector housing in the folded state is depicted, with other components removed for clarity. While the bumper bar reset pin 230 and the bumper bar reset spring pin 232 have been retained, the seat back hub housing against which they bear has been removed for clarity.

[0162] Advantageously, as described herein, the hub of the present disclosure is configured such that even if the bumper bar housing does not return to the upright / operational position (e.g. the user holds the bumper bar housing and prevents rotation), the seat will nonetheless open and the primary locking element will still engage and the seat can be safely used. In this way, the hub of the present disclosure is designed to provide safe operation even if for some reason the bumper bar enters an unexpected state due to user misuse or mechanical failure.

[0163] FIG. 11D A side view of the assembled hub 23 is depicted when the seat is in the fully folded position (i.e. the seat back 24, bumper bar 26 and seat base 22 are folded together). For explanatory purposes, the position of the bumper bar reset pin 230 is labelled. It will be appreciated that the bumper bar reset pin is generally not visible during operation.

[0164] FIG. 11E depicts a side view of the hub assembly 23 in an assembled state when the seat has transitioned to a state where the bumper bar 26 has fully deployed (i.e. with the seat back 24 having at least partially upright relative to the seat base 22); and wherein the position of the bumper bar reset pin 230 has been marked for explanatory purposes. It will be appreciated that the bumper bar reset pin 230 has entered the groove defined in the distal face of the bumper bar housing 140 (not visible, refer to FIG. 11C groove 144).

[0165] It will be appreciated that the bumper bar reset pin 230 is generally not visible during operation; but has been explicitly marked for explanatory purposes.

[0166] Referring now to FIG. 11F , a side view of the hub assembly 23 is depicted when the seat back 24 continues to rotate to a reclined position relative to the base 22; with the bumper bar 26 in its deployed position. The position of the bumper bar reset pin 230 has again been marked for explanatory purposes. It will be appreciated that the bumper bar reset pin 230 is travelling within the groove 144 defined in the distal face of the bumper bar housing 140; without interfering with the seat back adjustment operation.

[0167] Referring now to FIG. 12 , an exemplary cross-sectional view of the hub assembly 23 of the present disclosure is depicted when the primary locking element 130 is in an initial state; and as depicted in FIG. 10A . The fastening bolt 128 secures the seat connector housing.

[0168] As depicted, the teeth of the primary element 130 engage with formations in the bumper bar housing 140; with formations on the inner face of the seat connector housing 127; and with formations on the seat hub base housing 160.

[0169] As depicted, the recline cog 200 and the recline cog actuator 210 are in an initial position such that the seat back housing 220 engages with formations on the other face of the seat base hub housing. The slide element is also in an initial position whereby the slide element does not protrude through the seat base hub housing 160, as depicted in FIG. 9A . The recline cog bolt 222 is also depicted for reference.

[0170] Although the movement of the primary locking element of the improved hub assembly of the present disclosure has been described with reference to a folding operation, it will be appreciated that the unfolding operation is essentially the reverse of the folding operation. In particular, once the frame 12 of the stroller 10 has been unfolded, the seat back 24 can be rotated upwards relative to the seat base 22 back to the operative position. As the seat base 22 and the seat back 24 are rotated apart relative to each other by the user pushing one or the other outwards, the primary locking element will automatically engage with the seat connector and the seat base to lock the seat in place.

[0171] As the seat back 24 is pulled away from the seat base 22, the bumper bar 26 is pushed rearwards into FIGS. 1A-1F the operative position depicted. Once the bumper bar 26 has reached the operative position, further rotation of the seat back 24 relative to the seat base 22 pushes the bumper bar reset pin 230 in the groove of the bumper bar base housing 140. It will be appreciated that in this arrangement, the bumper bar reset pin 230 contained in the groove of the bumper bar housing does not interfere with the adjustment of the seat back relative to the seat base.

[0172] Advantageously, the hub arrangement of the present disclosure is designed such that if the bumper bar does not return to the operative upright position during the unfolding operation for any reason, there is sufficient force to engage the primary locking element with the teeth between the seat connector housing 127 and the seat base hub housing 160 such that the stroller can still be used. At the appropriate time, once the primary locking element is finally locked with the bumper bar base housing assembly, the engagement of the seat base 22, seat back 24 and bumper bar 26 with the seat connector 25 is further enhanced.

[0173] The improved hub assembly and stroller of the present disclosure has several advantages.

[0174] The folding and unfolding operation of the seat and bumper bar addresses a common and frustrating problem with prior art strollers. In particular, the frustration of having to remove and / or accommodate a fixed bumper bar is overcome when the bumper bar is unlocked as the seat back is automatically moved towards the seat base. The folding operation is intuitive and does not require any complex actuation by the user. Furthermore, the temptation for the user to use significant force to overcome the intended restriction on operation is removed by the simple and intuitive folding and unfolding operation that can be achieved with the improved hub assembly as described herein.

[0175] In another aspect, it will be appreciated that as the rotation axis of the bumper bar and the seat base are common; but offset from the rotation axis of the seat back, the folded seat allows the bumper bar to fold within the space and at the same time allows the relatively bulky luggage cover fabric accessory associated with the seat to be folded with the seat as well. If the rotation axis of the bumper bar, seat base and seat back were common, there would be no / minimal space to accommodate such an accessory.

[0176] The hub of the present disclosure has a relatively thin lateral thickness. It will be appreciated that this is important as it does not encroach on the space of the hips / bottom of a child or baby seated within the pushchair. It will be appreciated that the overall width of the pushchair is necessarily constrained by considerations such as being able to fit through doorways, limitations on handling performance, and there are limits on the maximum width of the wheels, frame, and corresponding seat that can be accommodated. Accordingly, the relatively thin hub of the present disclosure and the pushchair described herein is configured to provide all the recline / folding operation functionality required, but at the same time maximises the width available to the occupants.

[0177] The hub of the present disclosure allows the pushchair to be folded with the seat in place, either facing the parent or facing forwards, compared to other arrangements on pushchairs which can not work in some configurations or can require the seat and / or the bumper bar to be removed before folding can commence.

[0178] Advantageously, the second / forward fixed position of the seat can hold accessories when the seat is in the home position. These accessories can include additional storage bags / pouches; a cup holder; a phone / tablet holder; a sun shade; and toys which can be provided to assist in transporting, cooling, amusing the occupants of the pushchair, and the like.

[0179] Furthermore, if in an optional embodiment the pushchair includes a rear extension member; as already referenced FIG. 3C The hub of the present disclosure allows the folding operation to be performed despite the extended configuration being provided.

[0180] The positioning of the seat in the standard position in the single user configuration, or the slight forward movement of the seat in the tandem configuration, as described herein, provides enhanced functionality to accommodate the needs of growing families. In particular, this arrangement provides more space for the occupants of the rear of the pushchair to stand or sit in the tandem configuration. Indeed, the weight of the occupants is also more evenly distributed which is more convenient for the parent / carer to manoeuvre.

[0181] Finally, the arrangement of the extendable backrest described herein with reference to FIG. 4C and FIG. 4D means that the pushchair can be adapted to changing as the baby or child grows.

[0182] The above embodiments are described by way of example only. Many variations are possible without departing from the scope of the present disclosure as defined in the appended claims.

[0183] While aspects are illustrated with respect to a variety of examples and other information, no limitation of the scope of the claims should be implied based on any such example or other information, as such examples and other information merely provide a description of aspects. Further, while aspects can have been described with respect to particular structural and / or methodical examples, it should be appreciated that various aspects of the disclosure are not necessarily limited to one or another examples illustrated. For example, such acts can be distributed differently or performed in other components in a system, in different orders, or omitted entirely. Furthermore, such common but outstanding features of the descriptions should be understood not as restrictions but rather as descriptions of examples.

Claims

1. A hub assembly connecting a seat base with a shock rod and a seat back of a stroller, the hub assembly comprising: a locking element displaceable between: an engaged state in which the locking element engages with formations on a seat connector assembly housing, a shock rod housing, and a seat base hub housing to prevent relative rotation therebetween; and a partially disengaged state in which the locking element engages with formations on the seat connector assembly housing and with formations extending from a first face of the seat base hub housing to prevent relative rotation therebetween; wherein in the partially engaged state the locking element is received within the seat connector assembly housing but is disengaged from formations extending from the shock rod housing; thereby allowing relative rotation therebetween to initiate a folding operation; and a fully disengaged state in which the locking element is received within formations on the seat connector assembly housing and is disengaged from formations extending from the seat base hub and shock rod housings; to allow relative rotation of the seat base hub and shock rod housings with respect to the seat connector housing for folding thereof.

2. The hub assembly of claim 1, further comprising a seat recline device for adjusting a relative inclination of a seat back housing with respect to a second face of the seat base hub housing; the seat recline device comprising a recline actuator urged toward the seat back housing.

3. The hub assembly of claim 2, wherein, the recline actuator is urged toward the seat back housing by mating engagement of a ramped surface in the seat back housing with a corresponding ramped recess defined in the recline actuator, the recline actuator being urged by activation thereof by a user.

4. The hub assembly of claim 3, wherein, the recline actuator is activated via a cable attached thereto to rotate against a ramped surface of the seat back housing, the cable being pulled by a user by operation of a recline handle.

5. The hub assembly of claim 2, wherein, an axis of rotation of the seat recline device and a side of the seat base housing of the seat recline device is offset with respect to an axis of rotation of another side of the seat base housing and the seat connector assembly housing.

6. The hub assembly of any of the preceding claims, wherein, rotation of the seat back housing with respect to the seat base hub housing and proximate a location of the shock rod urges a sliding element toward the seat base hub to a first position; wherein the sliding element in the first position displaces the primary locking element through the seat base hub housing and out of the engaged state into the partially disengaged state.

7. The hub assembly of claim 6, wherein, continued rotation of the seat back housing with respect to the seat base hub housing further urges the sliding element toward the seat base hub and into a second position, wherein the sliding element in the second position displaces the primary locking element through the seat base hub housing from the partially engaged state into the fully disengaged state.

8. The hub assembly of claim 6, wherein, a first ramped surface of the seat back housing is positioned and dimensioned to abut against a corresponding ramped surface of the sliding element as it rotates.

9. The hub assembly of claim 8, wherein, A second inclined surface of the seat back shell is positioned and dimensioned to abut against a corresponding second inclined surface of the sliding element as it rotates.

10. The hub assembly of any of the preceding claims, wherein, An aperture defined in the primary locking element is configured to receive a corresponding post extending from a face of the seat connector shell and seat base shell for secure engagement therewith.

11. The hub assembly of any of the preceding claims, wherein, A face of the bumper bar shell includes a recess and a groove defined therein for receiving a corresponding reset pin extending from the seat back shell and for returning the bumper bar shell to an operational position.

12. A stroller comprising a frame having at least one pair of rear ground engaging wheels and one or more front wheels, the frame supporting at least one hub assembly connecting a seat base with a bumper bar and a seat back, the at least one hub assembly comprising: a locking element displaceable between: an engaged state in which the locking element engages with formations on a seat connector assembly shell, a bumper bar shell, and a seat base hub shell to prevent relative rotation therebetween; and a partially disengaged state in which the locking element engages with formations on the seat connector assembly shell and with formations extending from a first face of the seat base hub shell to prevent relative rotation therebetween; wherein in the partially engaged state the locking element is received within the seat connector assembly shell but is disengaged from formations extending from the bumper bar shell; thereby allowing relative rotation therebetween to initiate a folding operation; and a fully disengaged state in which the locking element is received within formations on the seat connector assembly shell and is disengaged from formations extending from the seat base hub shell and the bumper bar shell; to allow relative rotation of the seat base hub and bumper bar shells with respect to the seat connector shell for folding thereof.

13. The stroller of claim 12, further comprising a seat recline device for adjusting a relative inclination of a seat back shell with respect to a second face of the seat base hub shell; the seat recline device comprising a recline actuator urged towards the seat back shell.

14. The stroller of claim 13, wherein, The recline actuator is urged towards the seat back shell by mating engagement of an inclined surface in the seat back shell with a corresponding inclined recess defined in the recline actuator, the recline actuator being urged by activation thereof by a user.

15. The stroller of claim 14, wherein, The recline actuator is activated via a cable attached thereto to rotate against an inclined surface of the seat back shell, the cable being pulled by a user by operation of a recline handle.

16. The stroller of claim 13, wherein, An axis of rotation of the seat recline device and a side of the seat base shell of the seat recline device is offset with respect to an axis of rotation of the other of the seat base shell and the seat connector assembly shell.

17. The stroller of any of the preceding claims 12 to 16, wherein, Rotation of the seat back shell relative to the seat base hub shell and proximate to the position of the bumper post pushes the sliding element toward the seat base hub to a first position; wherein the sliding element in the first position displaces the primary locking element through the seat base hub shell and out of the engaged state into the partially disengaged state.

18. The stroller of claim 17, wherein, Continued rotation of the seat back shell relative to the seat base hub shell further pushes the sliding element toward the seat base hub and into a second position, wherein the sliding element in the second position displaces the primary locking element through the seat base hub shell from the partially engaged state into the fully disengaged state.

19. The stroller of claim 18, wherein, A first inclined surface of the seat back shell is positioned and dimensioned to abut a corresponding inclined surface of the sliding element as it rotates.

20. The stroller of claim 19, wherein, A second inclined surface of the seat back shell is positioned and dimensioned to abut a corresponding second inclined surface of the sliding element as it rotates.

21. The stroller of any of the preceding claims 12 to 20, wherein, An aperture defined in the primary locking element is configured to receive a corresponding post extending from a face of the seat connector shell and seat base shell for secure engagement therewith.

22. The stroller of any of the preceding claims 12 to 20, wherein, A face of the bumper post shell includes a recess and groove defined therein for receiving a corresponding reset pin extending from the seat back shell and for pushing the bumper post shell to an operational position as the seat back shell rotates rearward relative to the seat base shell.

23. The stroller of any of the preceding claims 12 to 20, wherein, The seat connector assembly is engageable with the frame of the stroller at a first position or a different second position thereon.

24. The stroller of claim 23, wherein, The frame is configured to receive one or more accessories at the other of the first or second positions when the seat connector assembly is engaged with the frame of the stroller at the first or second positions.

Images