Transport system having a child carrier with an extending and / or rotating handle

Abstract

In one example, the transportation system includes a child carriage and a child carrier removably coupled to the child carriage. The carriage includes a frame and wheels attached thereto. The carrier includes a frame or body for supporting a child therein, a handle coupled to the frame or body, a handle rotation lock, and a handle extension lock. The handle extends, retracts, and rotates to different rotational positions relative to the frame or body. The handle rotation lock selectively locks the handle in each of the rotational positions, and the handle extension lock selectively locks the handle in the extended and retracted positions. The carrier can include (i) a rotation stop that selectively blocks rotation of the handle when the handle is extended, and / or (ii) an extension stop that selectively blocks extension of the handle when the handle is in a position for manually transporting the carrier.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to U.S. Provisional Patent Application No. 63 / 128,441, filed December 21, 2020, U.S. Provisional Patent Application No. 63 / 174,843, filed April 14, 2021, and U.S. Provisional Patent Application No. 63 / 237,443, filed August 26, 2021, the disclosures of all of which are incorporated by reference in their entireties herein.

[0002] FIELD OF THE DISCLOSURE The present disclosure relates generally to wheeled carriages for transporting children. [Background technology]

[0003] Strollers are commonly used to transport young children, such as by pushing an infant in an infant car seat, when the infant car seat is removed from the vehicle. Most strollers have a foldable frame so that they can be stored in the trunk of a car or other storage location. For some time, reducing the folded size of strollers has been a goal of the juvenile products industry. Although improvements have been made in this area, there remains a desire in the industry to reduce the folded size of strollers. Summary of the Invention

[0004] In one example, a child carrier is configured to be removably coupled to a child carriage for pushing the child carrier. The child carrier includes a frame or body, a handle coupled to the frame or body, and a handle rotation lock. The frame or body defines an opening configured to support a child therein. The handle is configured to transition between an extended position and a retracted position relative to the frame or body and to rotate relative to the frame or body between a plurality of rotational positions. The handle rotation lock has a rotation latch configured to move along an axis of the handle between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions.

[0005] In another example, a child carrier is configured to be removably coupled to a child carriage for pushing the child carrier. The child carrier includes a frame or body, a handle, a handle extension lock, and a handle extension stop. The frame or body defines an opening configured to support a child therein. The handle is coupled to the frame or body by a handle hub such that the handle is configured to rotate relative to the frame or body between a plurality of rotational positions. The handle is also configured to transition between an extended position and a retracted position relative to the frame or body. The handle extension lock is configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions. The handle extension stop is disposed within the handle hub and configured to move between 1) a blocking position that prevents the handle from moving from the retracted position to the extended position regardless of the position of the handle extension lock, and 2) a released position that allows the handle to move from the retracted position to the extended position while the handle extension lock is in the unlocked position.

[0006] In yet another example, a transportation system includes a child carriage and a child carrier. The child carriage includes a frame and a plurality of wheels. The frame has an upper end and a lower end, with the wheels attached to the lower end. The child carrier is configured to be removably coupled to the upper end. The child carrier includes a frame or body, a handle coupled to the frame or body, a handle rotation lock, and a handle rotation stop. The frame or body defines an opening configured to support a child therein. The handle is configured to transition between an extended position and a retracted position relative to the frame or body and to rotate relative to the frame or body between a plurality of rotational positions. The handle rotation lock is configured to move between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions. The handle rotation stop is configured to move between (1) a blocking position that prevents the handle from rotating from one of the rotation positions to the other, regardless of the position of the handle rotation lock, and (2) a release position that allows the handle to rotate from one of the rotation positions to the other while the handle rotation lock is in the unlocked position. The carriage does not include any push handle extending above the child carrier, and the handle of the child carrier is configured to push the child carriage when the child carrier is coupled to the child carriage.

[0007] In yet another example, a transportation system includes a child carriage and a child carrier. The child carriage includes a frame and a plurality of wheels. The frame has an upper end and a lower end, with the wheels attached to the lower end. The child carrier is configured to be removably coupled to the upper end. The child carrier includes a frame or body, a handle coupled to the frame or body, a handle extension lock, and a handle extension stop. The frame or body defines an opening configured to support a child therein. The handle is configured to transition between an extended position and a retracted position relative to the frame or body and is configured to rotate relative to the frame or body between a plurality of rotational positions. The handle extension lock is configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions. The handle extension stop is configured to move between 1) a blocking position that prevents the handle from moving from the retracted position to the extended position regardless of the position of the handle extension lock, and 2) a released position that allows the handle to move from the retracted position to the extended position while the handle extension lock is in the unlocked position. The carriage does not include any push handle extending above the child carrier, and the handle of the child carrier is configured to push the child carriage when the child carrier is coupled to the child carriage.

[0008] The following description of example embodiments may be better understood when read in conjunction with the accompanying drawings, it being understood that potential embodiments of the disclosed systems and methods are not limited to those shown in the drawings. [Brief explanation of the drawings]

[0009] [Figure 1] 1 shows a perspective view of an example transportation system including a child carriage, a child carrier, and an organizer. [Figure 2] 2 shows a side view of the transportation system of FIG. 1 with the child carrier separated from the child carriage. [Figure 3]2 illustrates a front perspective view of the child carriage of FIG. 1 according to an example. [Figure 4] FIG. 4 shows a rear perspective view of the child carriage of FIG. 3. [Figure 5A] 4 shows a side view of the inside of the child carriage linkage of FIG. 3, with the child carriage in an extended configuration. [Figure 5B] 5B shows a side view of the interior of the linkage of FIG. 5A with the child carriage in a first folded configuration. [Figure 5C] 5B shows a perspective view of the linkage of FIG. 5A with the child carriage in a first folded configuration. [Figure 6A] 5B shows a perspective view of the linkage of FIG. 5A with a portion of one link cut away to show the latch housing when the child carriage is in an extended folded configuration. [Figure 6B] 6B shows a perspective view of the linkage of FIG. 6A with a portion of one link cut away to show the latch housing when the child carriage is in a first folded configuration. [Figure 6C] 6B shows a perspective view of the linkage of FIG. 6A when the child carriage is in a second folded configuration. [Figure 7A] 5B shows a cross-sectional top view of a portion of the linkage and handle of FIG. 5A to show the folding latch and actuator in the latched position. [Figure 7B] 5B shows a cross-sectional top view of a portion of the linkage and handle of FIG. 5A to show the folding latch and actuator in an unlatched position. [Figure 8A] 4 shows a perspective view of the child carriage of FIG. 3, with the child carriage in a first folded configuration. [Figure 8B] 4 illustrates a front view of the child carriage of FIG. 3, with the child carriage in a first folded configuration. [Figure 8C] 4 shows a side view of the child carriage of FIG. 3, with the child carriage in a first folded configuration. [Figure 9A] 4 illustrates a front view of the child carriage of FIG. 3, with the child carriage in a second folded configuration. [Figure 9B] 4 illustrates a top view of the child carriage of FIG. 3, with the child carriage in a second folded configuration. [Figure 10] 2 illustrates a front perspective view of the child carrier of FIG. 1 according to an example. [Figure 11] 11 shows a rear perspective view of the child carrier of FIG. 10. FIG. [Figure 12A] 11 illustrates a side view of the child carrier of FIG. 10 with the handle of the child carrier in a retracted position. [Figure 12B] 11 illustrates a side view of the child carrier of FIG. 10 with the handle of the child carrier in an extended position. [Figure 13A] 11 shows a perspective view of the child carrier of FIG. 10 coupled to a car seat base. [Figure 13B] 13B shows a perspective view of the car seat base of FIG. 13A. [Figure 14] 11A-11C show multiple side views of the child carrier of FIG. 10 with the handle in various rotational positions. [Figure 15] 11 shows an exterior side view of a portion of the child carrier of FIG. 10, including a portion of the handle and a hub that attaches the handle to the body of the child carrier, with a portion of the hub removed to show the rotation lock. [Figure 16] 16 shows an outer side view of the hub of FIG. 15 with the rotation lock in the locked position. [Figure 17] 16 shows an outer side view of the hub of FIG. 15 with the rotation lock in the unlocked position. [Figure 18] 16 illustrates an exterior side view of the hub of FIG. 15 with the rotation stop of the child carrier in a released position moving the rotation lock to an unlocked position. [Figure 19] 16 illustrates an exterior side view of the hub of FIG. 15 with the rotation stop of the child carrier in a blocking position blocking movement of the rotation lock to the unlocked position. [Figure 20] FIG. 16 shows an inner side view of the hub of FIG. 15 with a portion of the hub removed to show the handle extension stop. [Figure 21]FIG. 16 shows an exterior side view of the hub of FIG. 15 with the handle extension stop in the released position, with a portion of the hub removed to show the handle extension stop. [Figure 22] 16 shows an exterior side view of the hub of FIG. 15 with a portion of the hub removed to show the handle extension stop in a blocking position preventing extension of the handle. [Figure 23] 11 illustrates an exterior cross-sectional view of a portion of the handle of the child carrier of FIG. 10 according to an example, where the portion includes a handle extension lock configured to selectively lock the handle in an extended position and a retracted position. [Figure 24] 11 shows a top cross-sectional view of a portion of the handle of the child car seat of FIG. 10, including a handle extension lock and an actuator configured to actuate the handle extension lock. [Figure 25] 11 shows an exterior cross-sectional side view of a portion of the handle of the child carrier of FIG. 10 with a handle extension lock. [Figure 26] 11 illustrates a cross-sectional view of a portion of the handle of the child carrier of FIG. 10, including the organizer latch in a blocking position. [Figure 27] 11 illustrates a cross-sectional view of a portion of the handle of the child carrier of FIG. 10, including the organizer latch in a non-blocking position. [Figure 28] 11 shows a perspective view of a portion of the organizer and a portion of the handle of the child carrier of FIG. 10, with a portion of the handle shown in cross section. [Figure 29] 11 shows a perspective view of a portion of the transport system of FIG. 1, including an organizer and a portion of the handle of the child carrier of FIG. 10. [Figure 30] 11 shows a perspective view of a portion of the transport system of FIG. 1 with the organizer deployed, including the organizer and a portion of the handle of the child carrier of FIG. 10. [Figure 31] 2 illustrates a top view of a tray of an organizer of the transfer system of FIG. 1 according to an example. [Figure 32]2 illustrates a perspective view of a first side of a tray of the organizer of the travel system of FIG. 1 according to an example, the tray having a coupling for attaching to a child carrier handle, the coupling shown in an extended position. [Figure 33] 2 illustrates a perspective view of a first side of a tray of the organizer of the transfer system of FIG. 1 with the coupling shown in a retracted position. [Figure 34] 1 according to another example, the organizer in a compact configuration. [Figure 35] FIG. 35 shows a perspective view of the organizer of FIG. 34, with the organizer in an expanded configuration. [Figure 36A] 5 shows a perspective view of a transport system including the child carriage of FIGS. 3 and 4 and an infant seat with a fabric seating portion shown in dashed double-dashed lines. FIG. [Figure 36B] 36B shows a perspective view of the transfer system of FIG. 36A without the textile seat. [Figure 37A] 36A and 36B, showing the carriage and infant seat in an extended configuration. [Figure 37B] 36A and 36B, showing the carriage and infant seat in a folded configuration. [Figure 38] 36C shows a partial cross-sectional side view of the area of ​​the infant seat handle circled in FIG. 36B, showing the infant seat handle extension lock. [Figure 39A] 36A and 36B show exploded views of the folding hub of the infant seat of FIG. 36B with the outer cover of the folding hub hidden. [Figure 39B] 39B shows a side view of the folding hub of FIG. 39A with the outer cover of the folding hub hidden and the infant seat in an extended configuration. [Figure 39C] 39B shows a side view of the folding hub of FIG. 39A with the outer cover of the folding hub hidden and the infant seat in a folded configuration. [Figure 40A]36A and 36B with the folding hub, first coupling portion, and second coupling portion cut out below the folding hub, with the second coupling portion in a non-latching configuration. [Figure 40B] 36A and 36B with the folding hub, first coupling portion, and second coupling portion cut out below the folding hub, with the second coupling portion in a latched configuration. [Figure 41A] 40B shows a cross-sectional end view of the folding hub and first coupling of FIG. 40A, with the first coupling in an unlatched configuration. [Figure 41B] 40C shows a cross-sectional end view of the folding hub and first coupling of FIG. 40B, with the first coupling in a latched configuration. [Figure 42] 40A-41B show perspective views of the actuators for the first and second coupling portions and the movable latch of the first coupling portion; [Figure 43] 5 shows a perspective view of the child carriage of FIGS. 3 and 4 with a basket. FIG. [Figure 44] FIG. 44 illustrates a side view of the child carriage of FIG. 43 in a first folded configuration. [Figure 45] FIG. 44 illustrates an end view of the child carriage of FIG. 43 in a second folded configuration. [Figure 46] 5 shows a perspective view of the child carriage of FIGS. 3 and 4 with another basket. FIG. [Figure 47] FIG. 47 shows a side view of the child carriage of FIG. 46 in a first folded configuration. [Figure 48] 48 shows an end view of the child carriage of FIG. 47 in a second folded configuration. DETAILED DESCRIPTION OF THE INVENTION

[0010] 1 and 2, an example of a transportation system 10 is shown including a child carriage 100 and at least one removable child carrier. Generally, the at least one removable child carrier may include an infant car seat 200 as shown in FIGS. 1 and 2, an infant seat 400 as shown in FIG. 36A, a bassinet (not shown), or a carrycot (not shown). In some examples, the transportation system 10 may include the infant car seat 200, the infant seat 400, the bassinet, or the carrycot, or any combination thereof. The child carriage 100 includes a frame 102 configured to support the child carrier (e.g., 200, 400) above the riding surface, and a plurality of wheels 104 attached to the frame 102 and configured to translate the child carriage 100 and the child carrier (e.g., 200, 400) along the riding surface. The child carrier (e.g., 200, 400) and child carriage 100 are configured to be removably coupled to one another. When not in use, child carriage 100 can be folded compactly for storage in a vehicle, an aircraft overhead bin, or other location. As discussed in further detail below, child carriage 100 can be configured to fold from an extended configuration to a first folded configuration (e.g., FIGS. 8A-8C), and optionally from the first folded configuration to a second folded configuration (e.g., FIGS. 9A, 9B), where child carriage 100 occupies a smaller volume in the second folded configuration than in the first folded configuration.

[0011] Unlike conventional strollers, the child carriage 100 is not provided with a push handle used to push a child. In other words, the child carriage 100 is not provided with a handle extending above the child carrier that is accessible to an adult for pushing the child carriage 100 while the adult is standing upright. Rather, the child carrier (e.g., 200, 400) is provided with a handle (e.g., 226 in FIG. 10 , 404 in FIG. 36A ) that can be used by a caregiver to push the child carriage 100 and child carrier (e.g., 200, 400) along the riding surface when the child carrier (e.g., 200, 400) is coupled to the child carriage 100. In some examples, the same handle (e.g., 226) can be used to carry the child carrier (e.g., 200) when the child carrier (e.g., 200) is detached from the child carriage 100. The child carrier (e.g., 200, 400) is configured such that removing the child carrier (e.g., 200, 400) from the child carriage 100 removes the handle (e.g., 226, 404) along with the child carrier (e.g., 200, 400) from the child carriage 100. As a result, the child carriage 100 can achieve a more compact folded volume than a conventional stroller with a comparable push handle. In some examples, the travel system 10 can include a travel organizer 300 that can be configured to hold at least one item, such as a drink container, a portable device, or other item for a caregiver. The travel organizer 300 can be configured to removably couple to the handle (e.g., 226, 404) of the child carrier (e.g., 200, 400).

[0012] Child Carriage 2 to 4, the frame 102 of the child carriage 100 has an upper end 102a and a lower end 102b that are offset from each other along a vertical direction V. The frame 102 has a front end 102c and a rear end 102d that are offset from each other along a longitudinal direction L that is perpendicular to the vertical direction V. The frame has a first side 102e and a second side 102f that are offset from each other along a lateral direction A that is perpendicular to both the vertical direction V and the longitudinal direction L.

[0013] The child carriage 100 includes a plurality of wheels 104 disposed on a lower end 102b of the frame 102. The upper end 102a of the frame 102 is configured to removably couple to a child carrier (e.g., 200, 400) to space the child carrier (e.g., 200, 400) above the riding surface. As will be described in more detail below, the upper end 102a of the frame 102 includes at least one seat coupling portion that removably couples the child carrier (e.g., 200, 400) to the child carriage 100, thereby limiting movement of the child carrier (e.g., 200, 400) relative to the child carriage 100 along at least one of a vertical direction V, a longitudinal direction L, and a lateral direction A. In some examples, the at least one seat coupling is configured to removably couple the child carrier (e.g., 200, 400) to the child carriage 100 to limit movement of the child carrier (e.g., 200, 400) relative to the child carriage 100 along at least two of the vertical direction V, the longitudinal direction L, and the lateral direction A, for example, along all three of the vertical direction V, the longitudinal direction L, and the lateral direction A. For example, the at least one seat coupling may be configured to removably couple the child carrier (e.g., 200, 400) to the carriage 100 to prevent removal of the child carrier (e.g., 200, 400) along an upward direction. At least one seat coupling portion may be configured to removably couple to a rigid portion of the child carrier (e.g., 200, 400), such as the rigid body (e.g., 202 in FIG. 10), or the shell of the child carrier (e.g., 200), or the rigid frame (e.g., 402 in FIG. 36A) of the child carrier (e.g., 400).

[0014] The frame 102 may include at least one leg assembly 106(1) and a second leg assembly 106(2) offset from one another along a lateral direction A. The first leg assembly 106(1) may be adjacent to a first side 102e, and the second leg assembly 106(2) may be adjacent to a second side 102f. The first leg assembly 106(1) may include a first front leg 108(1) and a first rear leg 110(1) offset from one another along a longitudinal direction L perpendicular to the lateral direction. The first leg assembly 106(1) may include a first hinge 112(1) pivotally coupling the first front leg 108(1) and the first rear leg 110(1) relative to one another. For example, a first hinge 112(1) can pivotally couple an upper end of the first front leg 108(1) to an upper end of the first rear leg 110(1). The first hinge 112(1) can define a pivot axis AP1 extending along the lateral direction A. The first front leg 108(1) and the first rear leg 110(1) can be configured to pivot about the pivot axis AP1 such that the lower ends of the first front leg 108(1) and the first rear leg 110(1) move toward each other along the longitudinal direction L to a first folded configuration and move away from each other along the longitudinal direction L to an extended configuration.

[0015] The second leg assembly 106(2) may include a second front leg 108(2) and a second rear leg 110(2) that are offset from one another along the longitudinal direction L. The second leg assembly 106(2) may include a second hinge 112(2) that pivotally couples the second front leg 108(2) and the second rear leg 110(2) relative to one another. For example, the second hinge 112(2) may pivotally couple an upper end of the second front leg 108(2) to an upper end of the second rear leg 110(2). The second hinge 112(2) may define a pivot axis AP1 that extends along the lateral direction A. The second front leg 108(2) and the third rear leg 110(2) can be configured to pivot about the pivot axis AP1 such that the lower ends of the second front leg 108(2) and the second rear leg 110(2) move toward each other along the longitudinal direction L to a first folded configuration and move away from each other along the longitudinal direction L to an extended configuration.

[0016] The frame 102 may include at least one crosspiece 114(1), 114(2) extending between the first and second leg assemblies 106(1) and 106(2) to space the first and second leg assemblies 106(1) and 106(2) from one another along the lateral direction A. Each crosspiece may be shaped like a bar, a tube, or the like, or may have any other suitable shape. The at least one crosspiece 114(1), 114(2) may include a first crosspiece 114(1) extending from the first leg 108(1) to the front leg 108(2). The first crosspiece 114(1) may have a first end attached to the first front leg 108(1) and a second end attached to the second front leg 108(2). At least one crosspiece 114(1), 114(2) may include a second crosspiece 114(2) extending from the first rear leg 110(1) to the second rear leg 110(2). The second crosspiece 114(2) may have a first end attached to the first rear leg 110(2) and a second end attached to the second rear leg 110(2). In some examples, the frame 102 may include a third crosspiece 114(3) extending between the first and second leg assemblies 106(1) and 106(2). The third crosspiece 114(2) may be positioned higher in the vertical direction V than the first and second crosspieces 114(1) and 114(2). The third crosspiece 114(2) may be disposed at a position between the first and second crosspieces 114(1) and 114(2) relative to the longitudinal direction L when the carriage 100 is in the extended configuration. The third crosspiece 114(3) may define a carry handle 122. The carry handle 122 may be configured to carry the child carriage 100 by hand when a child carrier (e.g., 200, 400) is detached from the child carriage 100.

[0017] The plurality of wheels 104 may include at least three wheels 104, and in some examples, may include four wheels 104. For example, the plurality of wheels 104 may include a first pair of wheels 104 disposed at the rear end 102d of the frame 102. A first wheel 104 of the first pair may be coupled to a lower end of a first rear leg 110(1) of a first leg assembly 106(1), and a second wheel 104 of the first pair may be coupled to a lower end of a second rear leg 110(2) of a second leg assembly 106(2). The plurality of wheels 104 may include at least one wheel 104 disposed at a front end 102e of the frame 102. For example, the plurality of wheels 104 may include a second pair of wheels 104 disposed at the front end 102e of the frame 102. The first wheel 104 of the second pair may be coupled to a lower end of the first front leg 108(1) of the first leg assembly 106(1), and the second wheel 104 of the second pair may be coupled to a lower end of the second front leg 108(2) of the second leg assembly 106(2). Alternatively, the multiple wheels may include a single wheel 104 (not shown) disposed at the front end 102e of the frame. The single wheel 104 may be coupled to the lower end of the frame 102 at a location between the first legs 108(1) and 108(2), or the frame 102 may include a single front leg with a wheel 104 attached.

[0018] As discussed above, the child carriage 100 may include at least one coupling configured to couple a child carrier (e.g., 200, 400) to the child carriage 100. While FIGS. 2-4 show one specific example of a coupling that may be used to couple the child carrier (e.g., 200, 400) to the child carriage 100, it is understood that the child carrier (e.g., 200, 400) may be coupled to the child carriage 100 using other suitable couplings. In some examples, as shown in FIGS. 2-4, the at least one coupling may include a first pair of couplings 116(1), 116(2). The first coupling 116(1) of the first pair may be disposed on the first side 102e of the frame 102. The first coupling 116(1) may be attached to the first leg assembly 106(1). The first coupling portion 116(1) may be configured to couple to a first lateral side (e.g., 202e in FIGS. 10 and 11) of the child carrier (e.g., 200, 400). The second coupling portion 116(2) of the first pair may be disposed on a second side 102f of the frame 102. The second coupling portion 116(2) may be configured to couple to a second lateral side (e.g., 202f in FIGS. 10 and 11) of the child carrier (e.g., 200, 400). The second coupling portion 116(2) may be attached to the second leg assembly 106(2). In some examples, the first and second coupling portions 116(1) and 116(2) may each define a bayonet 117, as shown, although embodiments of the present disclosure are not limited thereto.

[0019] Each bayonet 117 may be an upwardly extending protrusion. Each bayonet 117 may have a length along a generally vertical direction V. Each bayonet 117 may have a thickness along a lateral direction A, a height along the vertical direction V, and a width along a longitudinal direction L. The height may be greater than the thickness and / or width. In some examples, the width may be greater than the thickness.

[0020] Each of the first and second coupling portions 116(1), 116(2) can define a protrusion or opening 118 configured to engage with the other of the protrusions and openings (e.g., 216 in FIGS. 10 and 11 , 446 in FIGS. 40A and 40B) of the child carrier (e.g., 200, 400). FIGS. 2-4 show an example in which each coupling portion 116(1), 116(2) defines an opening 118 on an inner surface thereof configured to receive the protrusion (e.g., 216 in FIGS. 10 and 11 ) of the child carrier (e.g., 200, 400). Each coupling portion 116(1), 116(2) can engage a different lateral side of the child carrier (e.g., 200, 400) to limit movement of the child carrier along the lateral direction A. The protrusion or recess 118 of each coupling portion 116(1), 116(2) may be configured to engage with the other of the protrusions and openings (e.g., 216 in Figures 10 and 11) of the child carrier (e.g., 200, 400) to limit movement of the child carrier along the vertical direction V (e.g., at least one of an upward direction and a downward direction) and / or the longitudinal direction L.

[0021] The at least one coupling portion may include at least one other coupling portion, such as a pair of infant car seat coupling portions 120(1), 120(2) configured to releasably couple to the infant car seat 200. The at least one infant car seat 120(1), 120(2) may be configured to engage a movable latch 220 (see FIG. 10) of the infant car seat 200 that secures the infant car seat 200 to the car seat base 500 (see FIGS. 13A, 13B). Each of the at least one infant car seat coupling portions 120(1), 120(2) may define an engagement surface configured to engage with the movable latch 220 of the infant car seat 200 to limit movement of the infant car seat along at least one of the vertical direction V and the longitudinal direction L.

[0022] Each of the at least one infant car seat couplings 120(1), 120(2) can be offset from the first pair of couplings 116(1), 116(2) along the longitudinal direction L. For example, each of the at least one infant car seat couplings 120(1), 120(2) can be disposed in front of or behind the first pair of couplings 116(1), 116(2) with respect to the longitudinal direction L. The at least one infant car seat coupling 120(1), 120(2) couples the infant car seat 200 to the carriage 100 so as to limit the torque applied to the pair of seat couplings 116(1), 116(2) when a force is applied to the handle 226 (see FIG. 10 ) of the infant car seat 200. 2-4, each infant car seat 120(1), 120(2) includes a cylindrical pin having an outer curved surface that defines an engagement surface. Each cylindrical pin may be oriented such that the central axis of the cylindrical pin extends along the lateral direction A. It is understood that in alternative examples, each engagement surface may be defined by a shape other than a cylindrical pin, or the cylindrical pin may be oriented in another manner.

[0023] The at least one coupling may comprise at least one infant seat coupling 132(1), 132(2) configured to removably couple to the infant seat 400. The at least one infant seat coupling 132(1), 132(2) may be the same as the at least one infant car seat coupling 120(1), 120(2), or may be another coupling spaced apart from the at least one infant car seat coupling 120(1), 120(2). In some examples, the at least one coupling may comprise a pair of infant seat couplings 132(1), 132(2), each configured to removably couple to the infant seat 400. The at least one infant seat coupling 132(1), 132(2) may be configured to engage a movable latch 456 (see FIGS. 40A and 40B) of the infant seat 400. Each of the at least one infant seat coupling portions 132(1), 132(2) can define an engagement surface configured to be engaged by a movable latch 456 of the infant seat 400 to limit movement of the infant seat 400 along at least one of the vertical direction V and the longitudinal direction L. Each of the at least one infant seat coupling portions 132(1), 132(2) can be offset from the first pair of coupling portions 116(1), 116(2) along the longitudinal direction L. For example, each of the at least one infant seat coupling portion 132(1), 132(2) can be disposed forward or rearward of the first pair of coupling portions 116(1), 116(2) with respect to the longitudinal direction L. In one example, each infant car seat coupling 120(1), 120(2) can be disposed rearward of the first pair of couplings 120(1), 120(2), and each infant seat coupling 132(1), 132(2) can be disposed forward of the first pair of couplings 116(1), 116(2). At least one infant seat coupling 132(1), 132(2) couples the infant seat 400 to the carriage 100 so as to limit the torque applied to the pair of seat couplings 116(1), 116(2) when a force is applied to the handle 404 (see FIG. 36A ) of the infant seat 400.

[0024] The child carriage 100 may include at least one folding latch (e.g., 125 in FIGS. 6A and 7B , discussed in further detail below) configured to releasably lock the child carriage 100 in the extended position. The child carriage 100 may include an actuator (e.g., 127 in FIG. 6A , discussed further below) configured to actuate the at least one folding latch to move the at least one folding latch between an unlocked position, which allows the child carriage 100 to be folded, and a locked position, which prevents the child carriage 100 from folding. The actuator may include a third crosspiece 114(3) defining a handle 122 configured to be grasped by a caregiver to move the at least one lock to the unlocked position. In some examples, the handle 122 may extend between the first and second leg assemblies 106(1) and 106(2). For example, the handle 122 may have a length along the lateral direction A. 2-4, the handle 122 has a bar-like shape. However, it is understood that the handle 122 can have other suitable shapes in other examples. For example, the handle 122 can alternatively comprise a woven webbing or cord (not shown) that extends between the first and second leg assemblies 106(1) and 106(2), where the webbing or cord unlocks the folding latches when the webbing or cord is pulled.

[0025] In some examples, the handle 122 may comprise a movable actuator body (e.g., 129 in FIG. 6A , discussed below), such as a movable button, configured to be engaged by a caregiver and to move at least one lock (e.g., 125 in FIGS. 6A-7B ) to an unlocked position when the movable actuator body is moved (e.g., when the movable button is depressed). The child carriage 100 may be configured such that pulling the actuation handle 122 upward along a vertical direction may transition the carriage 100 from the extended configuration to the first folded configuration. In some examples, this may be performed after moving the movable actuator body. In other embodiments (such as when the handle comprises webbing or cord), movement of the actuator handle 122 itself may transition the at least one lock from a locked position to an unlocked position, after which further movement of the actuator handle 122 may transition the child carriage 100 from the extended configuration to the first folded configuration.

[0026] The child carriage 100 may include at least one coupling 124(1), 124(2). Figures 3 and 4 show an example in which the child carriage 100 includes a first coupling 124(1) attached to a first side 102e of the frame 102 and a second coupling 124(2) attached to a second side 102f of the frame 102. In some examples, each coupling 124(1), 124(2) may be configured to drive one of the front legs 108(1), 108(2) and one of the rear legs 110(1), 110(2) to move toward each other when transitioning the child carriage 100 to the first folded configuration, and away from each other when transitioning the first carriage 100 to the extended configuration. Each of the at least one coupling portion 124(1), 124(2) may include at least one seat coupling portion. For example, each of the at least one coupling portion 124(1), 124(2) may include one of the infant car seat coupling portions 120(1), 120(2) and / or one of the infant seat coupling portions 132(1), 132(2). In some examples, each of the at least one coupling portion 124(1), 124(2) may include a support surface configured to support a child carrier (e.g., 200, 400) thereon. Each of the at least one coupling portion 124(1), 124(2) may include a fold lock 125 (described in more detail below) that limits movement of the coupling portion when the fold lock 125 is in the locked position, thereby preventing the child carriage 100 from transitioning from the extended configuration to the first folded configuration.

[0027] 5A-5C, each link 124(1), 124(2) may include a first link 124a and a second link 124b. The first and second links 124a and 124b may have inner ends pivotally connected to one another at a first hinge 124c. The first link 124a may be further pivotally connected to one of the front legs 108(1), 108(2), and the second link 124b may be further pivotally connected to one of the rear legs 110(1), 110(2). The first and second links 124a and 124b of each link 124(1), 124(2) may each have a bar-like or plate-like shape, or any other suitable shape. The first and second links 124a and 124b of each coupling 124(1), 124(2) may define corresponding support surfaces 124c and 124d, respectively, that are aligned with one another when the child carriage 100 is in the extended configuration. The support surfaces 124c and 124d may support a bottom surface of a child carrier (e.g., 200) when the child carrier (e.g., 200) is coupled to the frame 102 such that the bottom surface rests on the support surfaces 124c and 124d. This may prevent downward movement of the child carrier relative to the frame 102.

[0028] The third crosspiece 114(3) may be coupled to at least one link. For example, the third crosspiece 114(3) may be coupled to the first link 124(1), such as one of the first and second links 124a and 124b of the first link 124(1). The third crosspiece 114(3) may also be coupled to the second link 124(2), such as one of the first and second links 124a and 124b of the second link. The third crosspiece 114(3) is configured such that when the third crosspiece 114(3) is moved upward relative to the first and second leg assemblies 106(1) and 106(2), the inner ends of the first and second links 124a and 124b of each link 124(1), 124(2) pivot and move upward relative to each other. This, in turn, causes the outer ends of the first and second links 124a and 124b of each coupling 124(1), 124(2) to move toward each other, pulling the front legs 108(1), 108(2) and rear legs 110(1), 110(2) toward the first folded configuration. Furthermore, each of the connectors 120(1) and 120(2) retracts as the front and rear legs move toward each other. Therefore, it can be said that the child carriage 100 includes at least one coupling that retracts at least one connector when the child carriage 100 is transitioned to the first folded configuration.

[0029] Conversely, when third crosspiece 114(3) is moved downward relative to first and second leg assemblies 106(1) and 106(2), first and second links 124a and 124b of each link 124(1), 124(2) pivot and move downward relative to one another. This in turn causes the outer ends of first and second links 124a and 124b of each link 124(1), 124(2) to move away from one another, thereby moving front ends 108(1), 108(2) and rear ends 110(1), 110(2) away from one another to the extended configuration. Furthermore, each of connectors 120(1) and 120(2) stretches as the front and rear legs move away from one another. Thus, child carriage 100 can be said to include at least one linkage that extends at least one connector when child carriage 100 transitions to the extended configuration. It will be understood that in alternative examples, third crosspiece 114(3) need not be connected to at least one linkage. For example, third crosspiece 114(3) could alternatively be coupled to one of carriage legs 108(1), 108(2), 110(1), 110(2), or hinges 112(1), 112(2).

[0030] 5A-5C, each coupling 116(1), 116(2) may be configured to be positionably fixed relative to a corresponding one of the leg assemblies 106(1), 106(2) when the carriage 100 is in the extended configuration, preventing the coupling 116(1), 116(2) from rotating relative to the leg assemblies 106(1), 106(2). In some examples, each coupling 116(1), 116(2) may be permitted to rotate when the carriage 100 is transitioned to the first folded configuration. For example, each coupling 116(1), 116(2) may be configured to rotate forward toward the front end of the carriage 100 when the carriage 100 is transitioned to the first folded configuration, as discussed further below with respect to FIGS. 37A and 37B. Carriage 100 may include at least one stop for each coupling 116(1), 116(2) configured to limit rotation of couplings 116(1), 116(2) when carriage 100 is in the extended configuration and allow rotation when carriage 100 is in the first folded configuration. For example, carriage 100 may include a stop 119 for each coupling 116(1), 116(2) configured to engage couplings 116(1), 116(2) to limit downward rotation of couplings 116(1), 116(2) toward rear end 102d of carriage frame 102 when carriage 100 is in the extended configuration. Each stop 119 may be attached to one of rear legs 110(1), 110(2).

[0031] Each coupling 116(1), 116(2) may include at least one rotatable stop, such as a pair of rotatable stops 116a and 116b. Each rotatable stop 116a, 116b may be engaged on a different side of the leg tube 108a of one of the front legs 108(1), 108(2). Each coupling 116(1), 116(2) may include a rotatable hub 116c attached to the bayonet 117 of the coupling 116(1), 116(2), which includes at least one rotatable stop 116a, 116b. The rotatable hub 116 may be rotatably fixed relative to the bayonet 117 such that rotation of the rotatable hub 116 causes rotation of the bayonet 117. When the carriage 100 is in the extended configuration (FIG. 5A), the at least one rotation stop 116a, 116b can be positioned to prevent the rotation hub 116, and thus the at least one rotation stop 116a, 116b and the bayonet 117, from rotating forward toward the front end 102c of the carriage frame 102.

[0032] When the carriage 100 is in the first folded configuration (FIG. 5B), rotation of the leg tube 108a causes the rotation hub 116, and thus the at least one rotation stop 116a, 116b, and the bayonet 117, to rotate forward as shown in FIG. 5B. The at least one stop 116a, 116b engages the leg tube 108a to limit further forward rotation of the rotation hub 116, the at least one stop 116a, 116b, and the bayonet 117. Note that when the carriage is in the first folded configuration in FIG. 5B, the at least one rotatable stop 116a, 116b may be positioned to allow downward rotation of the couplings 116(1), 116(2) toward the rear end 102d of the carriage frame 102.

[0033] 6A-7B, the child carriage 100 may include a folding latch 125 for each of at least one of the first and second linkages 124(1), 124(2). Each folding latch 125 may prevent links, such as the first and second links 124a and 124b, of each of the linkages 124(1), 124(2) from pivoting relative to one another. Each folding latch 125 may include a movable protrusion 125a configured to transition between a locked position and an unlocked position. In the locked position, the protrusion 125a may engage with at least one of the first and second links 124a and 124b to prevent the first and second links 124a from pivoting relative to one another about the hinge 124c. At least one of the first and second links 124a and 124b may include an engagement surface 124e configured to be engaged by the protrusion 125a. In the unlocked position, the protrusion 125a can be retracted such that the protrusion 125a disengages from at least one of the first and second links 124a and 124b, thereby allowing the first and second links 124a to pivot about the hinge 124c relative to one another. In some examples, the protrusion 125a can rotate between the locked and unlocked positions, as shown in FIGS. 7A and 7B.

[0034] Each folding latch 125 may include a latch housing 125b configured to accommodate the protrusion 125a. Note that in FIGS. 6A and 6B, a portion of the link 124b is cut away to expose the latch housing 125b. Each latch housing 125b may pivotally connect the third crosspiece 114(3) to each of the first and second links 124a and 124b about pivot axis AP2 or AP3. The carriage 100 may be configured to fold about pivot axis AP2 or AP3 to transition to the second folded configuration (FIG. 6C). The carriage 100 may be configured such that each latch housing 125b is at least partially disposed within the link of each of the coupling portions 124(1), 124(2) when the carriage 100 is in each of the extended configuration (FIG. 6A), the first folded configuration (FIG. 6B), and the second folded configuration (FIG. 6C). In this manner, each latch housing 125b can occupy the space S between end 114a of third crosspiece 114(3) and each of first and second coupling portions 124(1), 124(2) so as to avoid any potential pinch points that would otherwise exist in space S without housing latch 125b.

[0035] 7A and 7B , the actuator 127 may include a movable actuator body 129 configured to be engaged by a caregiver to move the folding latch 125 between the unlocked and locked positions. The movable actuator body 129 may be movable relative to the handle 122. In one example, the movable actuator body 129 may be carried by the handle 122. For example, the movable actuator body 129 may define a button configured to retract into the handle 122 when depressed by the caregiver. The actuator 127 may include a link 131, such as a band, wire, or cable, attached to the movable actuator body 129 and the folding latch 125 such that movement of the movable actuator body 129 translates into movement of the folding latch 125 between the locked and unlocked positions. For example, actuator body 129 may have an angled surface 129a that engages an angled surface of link 131 to translate link 131 along the lateral direction A when actuator body 129 is moved along a direction angularly offset from the lateral direction A (e.g., vertically or longitudinally). Movement of link 131 may cause latch protrusion 125a to rotate about pivot 125c between locked and unlocked positions. Latch 125 and actuator 127 may be implemented in another suitable manner.

[0036] In alternative examples, the at least one linkage may be configured in a manner other than that shown. For example, in some examples, the at least one linkage may not define a support surface. In some examples, the at least one linkage may not support either connector 120(1) or 120(2). In some examples, the at least one linkage may have more than two links, and / or the links may be configured in a manner other than that shown. In some examples, the at least one linkage may not engage with the at least one folding latch 125, and the at least one folding latch 125 may be located elsewhere. For example, the at least one folding latch 125 may be located on at least one of hinges 112(1), 112(2) (FIG. 3).

[0037] Returning to FIGS. 8A-9B, child carriage 100 can be folded from the extended configuration to a first folded configuration ( FIGS. 8A-8C ) by pivoting front legs 108(1), 108(2) relative to rear legs 110(1), 110(2) about a first pivot axis AP1 extending along lateral direction A. In some examples, child carriage 100 can be folded from the first folded configuration ( FIGS. 8A-8C ) to a second folded configuration ( FIGS. 9A and 9B ) about at least one other pivot axis, such as about pivot axes AP2, AP3, each angularly offset from first pivot axis AP1. For example, at least one other pivot axis AP2, AP3 can extend substantially along vertical direction V. The child carriage 100 can be folded from the first folded configuration (FIGS. 8A-8C) to the second folded configuration (FIGS. 9A, 9B) by rotating the first and second leg assemblies 106(1) and 106(2) toward each other about at least one other pivot axis.

[0038] Each crosspiece 114(1), 114(2), 114(3) may include at least one hinge, such as first hinge 114d and second hinge 114e, offset from one another along the length of the crosspiece (e.g., along lateral direction A). Child carriage 100 is configured such that when frame 102 is moved to the first folded configuration, first hinges 114b of crosspieces 114(1), 114(2), 114(3) are aligned with one another along second pivot axis AP2 and second hinges 114b of crosspieces 114(1), 114(2), 114(3) are aligned with one another along third pivot axis AP3. This arrangement allows the first leg assembly 106(1) to be rotated about the second pivot axis AP2 toward the second leg assembly 106(2), and allows the second leg assembly 106(2) to be rotated about the third pivot axis AP3 toward the first leg assembly 106(1).

[0039] 1 and 2, child carriage 100 does not include a push bar or push handle extending upward from leg assemblies 106(1), 106(2) above child carrier (200, 400) when the child carrier is coupled to child carriage 100. Furthermore, as can be seen in FIGS. 3 and 4, child carriage 100 does not include any frame structure extending above leg assemblies 106(1), 106(2) to support a fabric seat. In fact, child carriage 100 can be configured so that no portion of child carriage 100 extends above child carrier (200, 400) when child carrier (200, 400) is coupled to child carriage 100.

[0040] Child Carriage Basket 43-45, an example child carriage 100 including a basket 126 is shown. The basket 126 may be formed from at least one woven fabric. The basket 126 may be disposed between the first and second leg assemblies 106(1) and 106(2). The basket 126 may have a front end 126a and a rear end 126b offset from each other along the longitudinal direction L. The front end 126a and the rear end 126b may be substantially closed. The basket 126 may have a first side 126c and a second side 126d offset from each other along the lateral direction A. The first side 126c may be attached to the first leg assembly 106(1), and the second side 126c may be attached to the second leg assembly 106(2). The first and second sides 126c and 126d may extend from the front end 126a to the rear end 126b. The first and second sides 126c and 126d can be substantially closed, and the front end 126a and the rear end 126b can extend from the first side 126c to the second side 126d.

[0041] The basket 126 may have an upper end 126e and a lower end 126f offset from each other along the vertical direction V. The upper end 126e and the lower end 126f may extend from the upper end 126a to the rear end 126b and from the first side 126e to the second side 126d. At least a portion of, or all of, the upper end 126e may be open. The lower end 126e may be closed to prevent items stored therein from falling out of the basket 126. The basket 126 may define recesses therein between the front end 126a and the rear end 126b, between the first side 126c and the second side 126d, and between the upper end 126e and the lower end 126f.

[0042] The basket 126 may be attached to the first and second front legs 108(1) and 108(2) and to the first and second rear legs 110(1) and 110(2). The rear end 126b of the basket 126 may extend along the longitudinal axis L beyond at least a portion of each of the first and second rear legs 110(1) and 110(2). The rear end 126b may extend along the longitudinal axis L beyond the second (i.e., rear) crosspiece 114(2). The second crosspiece 114(2) may be disposed within the basket 126. First side 126c, second side 126d, front end 126a, and rear end 126b can extend above second crosspiece 114(2) such that second crosspiece 114(2) is between front end 126a and rear end 126b and between first side 126c and second side 126d. In some examples, second crosspiece 124(2) can be disposed closer to bottom end 126f than to top end 126e.

[0043] The rear end 126b may include a stiffener 128 therein. In one example, the stiffener 128 may have a "U" shape with first and second ends 128a and 128b attached to the first and second leg assemblies 106(1) and 106(2), respectively. The stiffener 128 may be a piece of plastic or other flexible material. In some examples, the stiffener 128 may be a bent rod received in a tunnel (e.g., a fabric tunnel) in the basket 126. The stiffener 128 may be disposed along the upper end 126e. The stiffener 128 may be configured such that the stiffener 128, and thus the rear end 126b of the basket 126, retracts relative to the first and second rear legs 110(1) and 110(2) when the child carriage 100 is transitioned from the extended configuration ( FIG. 43 ) to the first folded configuration ( FIG. 44 ). For example, the first and second ends 128a and 128b of the stiffener 128 may be pivotally attached to the first and second rear legs 110(1) and 110(2), respectively, such that the stiffener 128 rotates relative to the first and second rear legs 110(1) and 110(2) about a pivot axis when the child carriage 100 is transitioned from the extended configuration (FIG. 43) to the first folded configuration (FIG. 44). The pivot axis may extend along the lateral direction A. The stiffener 128 may also bend or move when the child carriage 100 is transitioned from the first folded configuration (FIG. 44) to the second folded configuration (FIG. 45). Thus, the child carriage 100 can be transitioned to the first and second folded configurations while the basket 126 remains attached. This is possible, at least in part, because (1) basket 126 extends beyond rear legs 110(1), 110(2) and / or stiffeners 128 fold and / or pivot while child carriage 100 is folded.

[0044] 46-48, a child carriage 100 including a basket 126 according to another example is shown. The basket 126 has a front end 126a, a first side 126c, a second side 126, an upper end 126e, and a lower end 126f, configured similarly to those discussed above in FIGS. 43-45. The basket 126 also has a rear end 126b configured differently from the rear end 126b discussed above in FIGS. 43-45. In this example, the rear end 126b extends beyond at least a portion of the rear legs 110(1) and 110(2). The rear end 126b includes a reinforcement member 128 having a planar shape. The reinforcement member 128 may be a piece of plastic or other flexible material. The reinforcement member 128 may extend from the upper end 126e to the lower end 126f. The reinforcement 128 can extend from the first side 126c to the second side 126d. Each of the first and second sides 126c and 126d can include at least one fold 130, such as an accordion fold, that allows the rear end 126 to transition between an open position (shown) and a closed position, with the rear end 126 extending farther along the longitudinal direction L from the first and second rear legs 110(1) and 110(2) in the open position than in the closed position. The child carriage 100 can include at least one pair of magnets configured to maintain the rear end 126b in the closed position and spaced apart to transition the basket 126 to the open position. For example, the pair of magnets may include at least one first magnet 121 disposed on the frame 102 and at least one second magnet 123 disposed on the basket 126 (e.g., on the rear end 126b or on the fabric between adjacent folds 130) configured to mate with the at least one first magnet 121. In some examples, the child carriage 100 may include a pair of magnets on each side 102e and 102f of the frame 102. Each first magnet 121 may be fixed to one of the first and second coupling portions 124(1), 124(2), such as the rear end of one of the first and second coupling portions 124(1), 124(2).

[0045] Infant car seat with push handle 10 and 11, an example child carrier 200 is shown. The child carrier 200 may be installed within an infant car seat (also known as an infant carrier). Typically, the infant car seat 200 includes an infant car seat body 202. The body 202 may define a seat shell. The infant car seat body 202 has an upper end 202a and a lower end 202b that are opposite each other along a vertical direction V. The upper end 202a extends inward toward the lower end 202b and defines a recess 204 that terminates in a seat surface 206 configured to support an infant thereon. The seat surface 206 may include a seat back 206a and a seat bottom 206b. Note that the underside of the seat bottom 206b is shown in FIG. 11. Although not shown, the infant car seat 200 may include a fabric disposed within the recess 204 that is configured to provide cushioning for the infant.

[0046] The lower end 202b has a bottom surface 208 configured to rest on the underside of a vehicle seat when the infant car seat 200 is installed in the vehicle. The infant car seat body 202 has a first or front end 202c and a second or rear end 202d on opposite sides along the longitudinal direction L. The front end 202c is spaced from the rear end 202d in the forward direction. The front end 202c is configured to face the back of the vehicle seat in which the infant car seat 200 is installed. Conversely, the rear end 202d is configured to face away from the back of the vehicle seat in which the infant car seat 200 is installed. When a child sits in the infant car seat body 202, the child's head is positioned closer to the rear end 202d, and the child's feet are positioned closer to the front end 202c. The infant car seat body 202 has a first side 202e and a second side 202f on opposite sides along the lateral direction A.

[0047] In some examples, the bottom surface 208 may be curved as it extends along the longitudinal direction L so that when the infant car seat 200 is supported on a floor, the infant car seat 200 may be rocked back and forth along the longitudinal direction L. For example, the bottom surface 208 may be curved so that when the infant car seat 200 is placed on a flat surface, a portion of the bottom surface 208 between the front end 202 c and the rear end 202 d contacts the flat surface and the bottom surface 208 is spaced apart from the flat surface at one or both of the front end 202 c and the rear end 202 d. However, it will be understood that the bottom surface 208 need not be curved.

[0048] In some examples, lower end 202b may include first rail 210(1) and second rail 210(2) spaced apart from one another along lateral direction A. First rail 210(1) may be defined on first side 202e, and second rail 210(2) may be defined on second side 202f. Each of first and second rails 210(1) and 210(2) may have an inner surface and an outer surface opposite one another along lateral direction A. Each of first and second rails 210(1) and 210(2) may have a length L along longitudinal direction L that is greater than the width of rails 210(1), 210(2) along lateral direction A. Thus, each rail 210(1) and 210(2) may have a long dimension along longitudinal direction L. The bottom end 202b can define a space 212 between the first rail 210(1) and the second rail 210(2). For example, the inner surface of the first rail 210(1) can face the inner surface of the second rail 210(2) to define the space 212 therebetween. Each rail 210(1), 210(2) can comprise a portion of the bottom surface 208. It is understood that in alternative examples, the bottom end 208 need not include the first and second rails.

[0049] The infant car seat 200 may include at least one coupling configured to couple the infant car seat 200 to the child carriage 100 such that movement of the infant car seat 200 relative to the child carriage 100 is limited along at least one of the vertical direction V, the longitudinal direction L, and the lateral direction A. While FIGS. 10 and 11 show one specific example of a coupling that may be used to couple the infant car seat 200 to the child carriage 100, it will be understood that the infant car seat 200 may be coupled to the child carriage 100 using any other suitable coupling. In some examples, as shown in FIGS. 10 and 11 , the at least one coupling may comprise a first pair of couplings 214(1), 214(2). The first coupling 214(1) of the first pair may be located on the first side 202e of the infant car seat 200. A second coupling portion 214(2) of the first pair may be disposed on a second side 202f of the infant car seat 200. Each of the first and second coupling portions 214(1), 214(2) defines a protrusion or opening 216 configured to engage with the other of the protrusions and openings 118 of the child carriage 100. Each side 202e, 202f and each coupling portion 214(1), 214(2) may engage with a different lateral side of the child carriage 100 to limit movement of the child carrier along the lateral direction A. The protrusion or recess 216 of each coupling portion 214(1), 214(2) may be configured to engage with the other of the protrusions and openings 118 of the child carriage 100 along the lateral direction A to limit movement of the infant car seat 200 along the vertical direction V (e.g., along at least one of an upward direction and a downward direction).

[0050] 10 and 11 show an example in which each coupling portion 214(1), 214(2) includes a movable latch defining a protrusion 216 that extends out from the side of the infant car seat 200. The first coupling portion 214(1) may include a protrusion 216 that extends out from the first side 202e of the infant car seat 200. The protrusion 216 may be movably attached to the car seat body 202 such that the protrusion 216 is configured to retract into and extend out from the first side 202e of the car seat body 202. The protrusion 216 of the first coupling portion 214(1) may be spring loaded to bias it toward an extended position. The first coupling portion 214(1) may be configured to couple to the first coupling portion 116(1) of the child carriage 100. For example, the protrusion 216 of the first coupling portion 214 ( 1 ) may be configured to be received in the opening 118 of the first portion 116 ( 1 ) of the child carriage 100 .

[0051] The second coupling portion 214(2) of the first pair may be disposed on the second side 202f of the infant car seat 200. The second coupling portion 214(2) may include a protrusion 216 extending from the second side 202f of the infant car seat 200. The protrusion 216 may be movably attached to the car seat body 202 such that the protrusion 216 retracts into the second side 202f of the car seat body 202 and extends from the second side 202f of the car seat body 202. The protrusion 216 of the second coupling portion 214(2) may be spring loaded so as to be biased to an extended position. The second coupling portion 214(2) may be configured to couple to the second coupling portion 116(2) of the child carriage 100. For example, the protrusion 216 of the second coupling portion 214 ( 2 ) may be configured to be received within the opening 118 of the second coupling portion 116 ( 2 ) of the child carriage 100 .

[0052] The at least one coupling portion may include at least one other coupling portion, such as a second pair of coupling portions 218(1), 218(2). Each of the at least one other coupling portion 218(1), 218(2) may include a movable latch 220 configured to engage an engagement surface (e.g., 120(1), 120(2)) of the child carriage 100 to limit movement of the infant car seat 200 relative to the child carriage 100 along at least one of the vertical direction V and the longitudinal direction L. Each of the at least one other coupling portion 218(1), 218(2) may be offset from the first pair of coupling portions 214(1), 214(2) along the longitudinal direction L. For example, each of the at least one other coupling portion 218(1), 218(2) may be disposed closer to the front end 202c than the first pair of coupling portions 214(1), 214(2). Each of the at least one other coupling portion 218(1), 218(2) can be disposed toward the front of the handle hubs 228(1), 228(2) (discussed below). Each of the at least one other coupling portion 218(1), 218(2) can be disposed at the bottom end 202b of the infant car seat 200, such as on the underside of the infant car seat 200.

[0053] 10 and 11 show one example in which each movable latch 220 defines a movable hook that engages with a corresponding one of the coupling portions 120(1), 120(2) of the child carriage 100. Each movable latch 220 may be disposed in a recess extending toward the lower end 202b, such as in the bottom surface 208, of the infant car seat 200. It will be appreciated that in alternative examples, each movable latch 220 may be defined in a shape other than a hook and may be oriented in another manner. For example, each movable latch 220 may be a movable bar, and each coupling portion 120(1), 120(2) of the child carriage 100 may define a hook that receives the movable bar. Couplings 218(1), 218(2) may be the same couplings used to attach infant car seat 200 to a car seat base (500 in FIGS. 13A and 13B) for mounting infant car seat 200 on a vehicle seat. In other words, each coupling 218(1), 218(2) may be configured to releasably couple to a coupling (508 in FIGS. 13A and 13B) on the car seat base to prevent infant car seat 200 from being removed from car seat base (500 in FIGS. 13A and 13B) along an upward direction. Each of at least one other coupling 218(1), 218(2) may be configured to engage coupling (508 in FIGS. 13A and 13B) along a downward direction.

[0054] 13A and 13B, the car seat base 500 includes a lower end 502 configured to rest on a vehicle seat when the car seat base 500 is installed in the vehicle. The car seat base 500 includes an upper end 504 configured to support the infant car seat 200. In some examples, the car seat base 500 may define at least one recess 506 extending into the upper end 504 toward the lower end 502. The recess 506 may be configured to receive a lower portion of the infant car seat 200 therein. The car seat base 500 may include at least one coupling portion 508, such as a pair of coupling portions 508, offset from one another along the lateral direction A. Each coupling portion 508 may be disposed within the at least one recess 506 of the car seat base 500. Each coupling 508 may be configured to couple to one of couplings 218(1), 218(2) of infant car seat 200 so as to prevent removal of infant car seat 200 along vertical direction V. Couplings 508 may be configured in any suitable manner. In some examples, each coupling 508 may comprise a rod configured to be engaged by a hook defined by each of couplings 218(1), 218(2) of infant car seat 200.

[0055] 10 and 11 , the infant car seat 200 may include at least one actuator 224 configured to be actuated by a caregiver to transition the couplings 214(1), 214(2) of the infant car seat 200 and / or the couplings 218(1), 218(2) of the infant car seat 200 between an unlocked configuration and a locked configuration. For example, the at least one actuator 224 may be configured to be actuated by a caregiver to (1) release the couplings 214(1), 214(2) of the infant car seat 200 from the couplings 116(1), 116(2) of the child carriage 100 and / or (2) release the couplings 218(1), 218(2) of the infant car seat 200 from the couplings 120(1), 120(2) of the child carriage 100. Furthermore, at least one actuator 224 may be configured to be actuated by a caregiver to release the coupling portions 218(1), 218(2) of the infant car seat 200 from the coupling portion 508 of the base 500. For example, the actuator 224 may be configured to retract the coupling portions 214(1) and 214(2) of the infant car seat 200 toward inside the seat main body 202 when actuated by the caregiver. The actuator 224 may be configured to move the movable latches 220 of the coupling portions 218(1), 218(2) to uncouple them from the coupling portions 120(1), 120(2) of the child carriage 100 when actuated by the caregiver. In some examples, the actuator 224 may include a handle that is engaged by the caregiver to actuate the actuator 224. In some examples, the actuator 224 may be disposed on the underside of the seat main body 202 near the rear end 202d of the seat main body 202. However, it is understood that the actuator 224 may be located elsewhere.

[0056] 10-12B, the infant car seat 200 may include a handle 226. The infant car seat handle 226 may be configured to transition between a retracted position (FIG. 12A) in which the handle 226 can be grasped by a caregiver to transport the infant car seat 200 and an extended position (FIG. 12B) in which the handle 226 can be used to push the child carriage 100 when the car seat 200 is docked as shown in FIG. 1. Thus, the infant car seat handle 226 may be referred to as a push and carry handle. The handle 226 may have a first side bar 227a and a second side bar 227b spaced apart from each other along the lateral direction A. The handle 226 may define a space between the first side bar 227a and the second side bar 227b. The space may have a width greater than the width of the car seat body 202. The handle 226 may have a gripping bar 227c that defines a surface to be grasped by a caregiver to carry and / or push the infant car seat 200. The gripping bar 227c may extend from the first handle side bar 227a to the second handle side bar 227b.

[0057] The infant car seat 200 may include a first handle hub 228(1) and a second handle hub 228(2). The first handle hub 228(1) may be configured to couple a first handle side bar 227a of the infant car seat bundle 226 to a first side 202e of the car seat body 202 such that the handle 226 is selectively rotatable relative to the car seat body 202. Similarly, the second handle hub 228(2) may be configured to couple a second handle side bar 227b of the infant car seat handle 226 to a second side 202f of the car seat body 100 such that the handle 226 is selectively rotatable relative to the car seat body 202. The infant car seat handle 226 may have a first handle portion 226a, a second handle portion 226b, and a third handle portion 226c, with the third handle portion 226c attached to the first and second handle portions 226a and 226b such that the third handle portion 226c nests within each of the first and second handle portions 226a and 226b. The first handle portion 226a extends from a first hub 228(1) and defines a portion of a first handle sidebar 227a. The second handle portion 226b extends from a second hub 228(2) and defines a portion of a second handle sidebar 227b. Each of the handle portions 226a and 226b may have a tubular shape. The third handle portion 226c can be tubular and have a "U" shape, with the ends of the "U" shape attached to the first and second handle portions 226a and 226b. For example, the ends of the "U" shape can be received within the first and second handle portions 226a and 226b for translation within the first and second handle portions 226a and 226b. The bottom of the "U" shape can define a grip bar 227c. In some examples, the infant seat handle 226 can have a grip 226d disposed on the third handle portion 226c for grasping by a caregiver. The grip 226d can be a flexible surface, such as a rubberized surface.

[0058] 14 , the infant car seat handle 226 may be configured to selectively rotate between a plurality of different positions. For example, the handle 226 may be configured to rotate to a first rotated position (Position A) in which the handle 226 is angled upward and away from the seat body 202 as the handle 226 extends toward the front end 202c of the seat body 202. The first rotated position may be oriented to allow a caregiver to use the handle 226 to push the child carriage 100 when the car seat 200 is docked. The first position may also be referred to as an “angled position” or “pushing position.” The handle 226 may be configured to rotate to a second rotated position (Position B) in which the handle 226 extends upward along the vertical direction V. The second rotated position may be oriented to allow a caregiver to use the handle 226 to transport the infant car seat 200. The second rotated position may also be referred to as an “upright position” or “carrying position.” The handle 226 may be configured to rotate to a third rotational position (position C) in which the handle 226 is angled upward and away from the seat main body 202 when the handle 226 extends toward the rear end 202d of the seat main body 202. The handle 226 may be configured to rotate to a fourth rotational position (position D) in which the handle 226 extends toward the rear end 202d of the car seat 200 along the longitudinal direction L. The handle 226 may be configured to rotate to a fifth rotational position (position E) in which the handle 226 is angled downward and away from the car seat main body 202 when the handle 226 extends toward the rear end 202d of the car seat 200. It will be understood that in alternative examples, one or more of the third, fourth, and fifth rotational positions may be omitted.

[0059] The operation of the handle 226 will now be described. In general, the infant car seat 200 may be configured such that the handle 226 can transition from the retracted position to the extended position when the handle 226 is in a first position (also referred to as the pressed position or Position A), but cannot transition when the handle 226 is in one or more other positions. In some examples, the infant car seat 200 may be configured such that the handle 226 can only transition from the retracted position to the extended position when the handle 226 is in the first rotated position (Position A). The infant car seat 200 may include at least one handle extension stop (e.g., 244 in FIGS. 20-22, discussed further below) configured to prevent the handle 226 from transitioning from the retracted position to the extended position when the handle 226 is not in the pressed position. Thus, the infant car seat 200 may be configured to prevent the handle 226 from transitioning to the extended position when the handle 226 is in the second, third, fourth, and fifth rotational positions, as shown in FIG. 14 . The infant car seat 200 may include at least one handle extension lock (e.g., 246 in FIGS. 23-25 ​​, discussed further below) configured to selectively lock the handle 226 in the extended and retracted positions while the handle 226 is in the depressed position. The handle extension lock may be activated by a caregiver while the handle 226 is in the depressed position to transition the handle extension lock between a locked position, in which the handle 226 is prevented from being extended or retracted, and an unlocked position, in which the handle 226 is permitted to be extended or retracted. If a caregiver attempts to activate the handle extension lock while the handle 226 is not in the depressed position, a handle extension stop (e.g., 244 in FIGS. 20-22 ) may prevent the handle 226 from extending.

[0060] The infant car seat 200 may be configured to prevent the handle 226 from rotating while the handle 226 is in the extended position. The infant car seat 200 may include at least one handle rotation stop (e.g., 242 in FIGS. 18 and 19 , discussed further below) configured to prevent the handle 226 from rotating while the handle 226 is in the extended position. Thus, the handle 226 may be prevented from rotating to the second, third, fourth, and fifth rotational positions when the handle 226 is in the extended position, as shown in FIG. 14 . The infant car seat 200 may include at least one handle rotation lock (e.g., 230 in FIG. 15 , discussed further below) configured to be actuated by a caregiver to selectively lock the handle 226 in different rotational positions while the handle 226 is in the retracted position. The handle rotation lock can be moved between a locked position, in which the handle 226 is prevented from being rotated from a selected one of the rotation positions, and an unlocked position, in which the handle 226 is permitted to rotate to another one of the rotation positions. If a caregiver attempts to activate the handle rotation lock while the handle 226 is in the extended position, a handle rotation stop (e.g., 242 in FIGS. 18 and 19) can prevent the handle 226 from rotating.

[0061] 15-17, one example of a rotation lock 230 is shown mounted within one of the handle hubs 228(2). It is understood that another rotation lock 230 may be mounted within another of the handle hubs 228(1). It is further understood that the rotation lock 230 may be implemented in another suitable manner. The rotation lock 230 includes a lock plate 234 that defines multiple rotational positions for the handle 226. For example, the lock plate 234 may have a surface that defines a slot 236 therein. The slot 236 may have a circular or partially circular portion 236a and multiple grooves 236b that open into the circular or partially circular portion 236a and are circumferentially spaced apart from one another along the length of the slot 236. Each groove 236b may correspond to a different rotational position of the handle 226 (e.g., positions A-E). Rotation lock 230 may include a rotation latch 238 with a projection 238a, such as a pin, extending therefrom into slot 236. Protrusion 238a may be configured to be selectively received in groove 236b to lock handle 226 in different rotational positions.

[0062] In an alternative example (not shown), rotary latch 238 can define at least one recess and locking plate 234 can define a plurality of protrusions circumferentially spaced from one another. The at least one recess of rotary latch 238 can be configured to selectively receive a protrusion to selectively lock handle 226 in a plurality of rotational positions. Thus, it can be said that the locking plate can define a plurality of grooves or protrusions and the rotary latch can define at least one protrusion or groove configured to selectively engage the groove or protrusion to selectively lock the handle in different rotational positions.

[0063] The rotational latch 238 is configured to be translated between a locked position ( FIG. 16 ) in which the rotational latch 238 engages the locking plate 234 (e.g., the projection 238 a is received in one of the grooves 236 b corresponding to one of the rotational positions) and an unlocked position ( FIG. 17 ) in which the rotational latch 238 disengages from the locking plate 234 (e.g., the projection 238 a is moved out of one of the grooves 236 b and into the circular or partially circular portion 236 a of the slot 236). The rotational latch 238 can be configured to translate along the axis of each of the first and second handle portions 226 a, 226 b such that the rotational latch 238 disengages from the locking plate 234 (e.g., the projection 236 a can be removed from one of the grooves 236), thereby rotating the handle 226. The handle 226 can then be rotated to the other rotational position. The rotary latch 238 (and protrusion 238a) is rotatably fixed relative to the handle 226, such that rotation of the handle 226 correspondingly rotates the rotary latch 238 (and protrusion 238a) relative to the locking plate 234. Both the handle 226 and the rotary latch 238 may be configured to rotate about a pivot 240. The pivot 240 may define a pivot axis extending along the lateral direction A. The rotary latch 238 may define a slot 238b that receives the pivot 240 such that the rotary latch 238 translates within the slot 238b as it translates between the locked and unlocked positions. When the handle 226 is rotated to another rotational position, the rotary latch 238 (and groove 238a) may be moved to a locked position in which the rotary latch 238 engages the locking plate 234 (e.g., the protrusion 238a is received in the groove 236b corresponding to the other rotational position). The rotary latch 238 may be spring-loaded so that when the rotary actuator 232 is released, the rotary latch 238 engages with the locking plate 234 (e.g., so that the protrusion 238a of the rotary latch 238 moves toward one of the grooves 236b).

[0064] The infant car seat 200 may include a rotational actuator 232 configured to be actuated by a caregiver to move at least one rotation lock 230 from a locked position ( FIG. 16 ), which prevents the handle 226 from rotating, to an unlocked position ( FIG. 17 ), which allows the handle 226 to rotate. The rotational actuator 232 includes a movable body 235 defining an engagement surface 235 a (shown in FIG. 15 ) configured to be engaged by a caregiver to actuate the rotational actuator 232. In one example, the movable body 234 may be shaped as a handle disposed around one of the first and second handle portions 226 a, 226 b and configured to translate along the lower handle portion 226 a. The movable body 235 may have other suitable shapes, such as a tube or a collar, and the engagement surface 235 a may be an outer surface of the rotational actuator. The rotational actuator 232 may include a wire or cable 236 extending from the movable body 235 to the rotational latch 238. Movement of movable body 235 away from hub 228(2) along selected direction DS causes corresponding movement of wire or cable 236 along selected direction DS, and corresponding movement of rotational latch 238 along selected direction DS disengages rotational latch 238 from locking plate 234 (e.g., moving protrusion 238a out of one of grooves 236b of locking plate 234). It will be understood that in alternative examples, rotational actuator 232 may be configured in another suitable manner. For example, movable body 235 may be implemented as a push button rather than a handle. As another example, movable body 235 may be located in another location, such as at the bottom of the “U” shape of third handle portion 226c (i.e., grip bar 227c) or on one of handle hubs 228(1), 228(2).

[0065] 18 and 19, the rotation stop 242 is configured to prevent rotation of the handle 226 when the handle 226 is in the extended position. Note that the rotation stop 242 is hidden in FIGS. 15-17 to better view the rotation latch 238. The rotation stop 242 may be configured to move between (i) a blocking position ( FIG. 19 ) in which the stop 242 interferes with the rotation latch 238 and prevents the rotation latch 238 from being moved to the unlocked position (thereby preventing the handle 226 from being rotated), and (ii) a release position ( FIG. 18 ) in which the interference between the stop 242 and the rotation latch 238 is removed and the rotation latch 238 is allowed to move to the unlocked position (thereby allowing the handle 226 to rotate). While FIGS. 18 and 19 show one example of the rotation stop 242, it will be understood that the rotation stop 242 may be implemented in any other suitable manner.

[0066] The rotation stop 242 can have a first engagement surface 242a configured to engage with the rotation latch 238 when in a blocking position interfering with the rotation latch 238. The rotation stop 242 can have a second engagement surface 242b configured to be engaged by the third handle portion 226c such that the rotation stop 242 is moved to the released position. In particular, the third handle portion 226c can nest with respect to the first and second handle portions 226a and 226b between the extended and retracted positions, as discussed above. As shown in FIG. 18 , when the third handle portion 226c is in the retracted position, the third handle portion 226c can engage the second engagement surface 242b to move the rotation stop 242 to the released position. 19, when the third handle portion 226c is in the extraction position, the third handle portion 226c can be moved away from the second engagement surface 242b to move the rotation stop 242 to the blocking position. The rotation stop 242 can be spring biased toward the blocking position. The rotation stop 242 can be configured to rotate about the pivot 240.

[0067] 20-22, the handle extension stop 244 is configured to prevent extension of the handle 226 when the handle 226 is not in the depressed position (i.e., not position A in FIG. 14). The handle extension stop 244 may be configured to move between a released position (FIGS. 20 and 21) and a blocked position (FIG. 22). For example, the handle extension stop 244 may be configured to rotate about an axis of rotation between the released and blocked positions. The handle extension stop 244 and the axis of rotation may be located within each of the handle hubs 228(1), 228(2). In the blocked position, the handle 226 is in a position other than the depressed position, and the handle extension stop 244 prevents the handle 226 from moving to the extended position. For example, the handle extension stop 244 may include a protrusion 244a that extends through an opening in one of the first and second handle portions 226a, 226b and into the third handle portion 226c while the handle extension stop 244 is in the blocking position (FIG. 22). The protrusion 244a blocks the third handle portion 226c from extending. The protrusion 244a may be disposed within each of the first and second handle hubs 228(1), 228(2). The handle extension stop 244 is moved toward the released position (FIGS. 20 and 21) by rotating the handle 226 to the depressed position. In the released position, the protrusion 244a is removed from the third handle portion 226c to allow the handle 226 to extend. The handle extension stop 244 may be spring biased toward the unlocked position. When the handle extension lock 246 (discussed below) is in the unlocked position while the handle extension stop 244 is in the released position, the handle 226 is permitted to move from the retracted position to the extended position. The handle extension stop 244 may be configured to prevent extension of the handle 226 while the handle 226 is in the transport position (Position B), regardless of whether the handle extension lock 246 is in the locked or unlocked position.

[0068] The handle extension stop 244 can have a first side defining a protrusion 244a and a second side 244b opposite the first side 244a. The handle extension stop 244 can be configured such that the second side 244b of the handle extension stop 244 rides along the inner surface of the corresponding one of the handle hubs 228(1), 228(2) when the handle 226 is rotated. The inner surface prevents outward rotation of the handle extension stop 244, thereby maintaining the handle extension stop 244 in a blocking position. When the handle 226 is rotated to a selected position (e.g., the pressed position shown in FIGS. 20 and 21 ), the second side 244b of the second handle extension stop 244 aligns with the opening 245 in the inner surface, thereby rotating the handle extension stop 244 outward at least partially through the opening to the released position. It should be noted that the handle extension stop 244 may be disposed entirely within the housing of the corresponding one of the handle hubs 228(1), 228(2), with the exterior portion of the housing hidden in FIG. 20 so that the handle hub is not visible inside.

[0069] 23-25, a handle extension lock 246 is configured to selectively lock the handle 226 in the retracted and extended positions. The handle extension lock 246 may be implemented in one of the first and second handle portions 226a, 226b. It is understood that another handle extension lock 246 may be implemented within the other of the first and second handle portions 226a, 226b. Furthermore, although FIGS. 23-25 ​​show one example handle extension lock 246, it is understood that the handle extension lock 246 may be implemented in another suitable manner.

[0070] The handle extension lock 246 may include a handle extension latch 248 configured to move between a locked position ( FIG. 25 ) and an unlocked position. In the locked position, the latch 248 prevents the handle 226 from transitioning between the extended and retracted positions. In the unlocked position, when the handle 226 is in the first rotational position (i.e., when the handle extension stop 244 is in the released position), the handle 226 is permitted to transition between the extended and retracted positions. When the handle extension stop 244 is in the blocking position, the handle 226 cannot be extended, regardless of whether the handle extension lock 246 is in the locked or unlocked position.

[0071] The handle extension latch 248 may include a protrusion 248a configured to move between a locked position and an unlocked position. The protrusion 248a may move along a direction angularly offset from, e.g., perpendicular to, the axis AH of the handle 226. In the locked position, the protrusion 248a extends into an opening in one of the first and second handle portions 226a, 226b and into an opening in the third handle portion 226c such that the protrusion 248a blocks the third handle portion 226c from being extended. In some examples, the handle portions 226a, 226b may include multiple openings offset from one another along these axes, each opening corresponding to a different extension position. In the unlocked position, the protrusion 248a is removed from the opening in the third handle portion 226c, thereby allowing the third handle portion 226c to be extended or retracted.

[0072] Handle extension lock 246 may include a latch guide 250 configured to guide movement of latch 248 between a locked position and an unlocked position. Latch guide 250 may be configured to translate toward and away from each of hubs 228(1), 228(2) along a selected direction DS along axis AH of handle 226. Latch guide 250 may include a guide surface that guides a corresponding surface of latch 248. For example, latch guide 250 may include a slot 250a angularly offset from selected direction DS, and latch 248 may have a pin 248b received in slot 250a. When latch guide 250 is moved along the selected direction away from each of hubs 228(1), 228(2), pin 248b translates along slot 250a, causing protrusion 248a to move out of the opening in one of first and second handle portions 226a, 226b and out of third handle portion 226c (i.e., moving latch 248 to the unlocked position). When latch guide 250 is moved along the selected direction toward each of hubs 228(1), 228(2), pin 248b translates along slot 250a, causing protrusion 248a to move into the opening in one of first and second handle portions 226a, 226b and into third handle portion 226c (i.e., moving latch 248 to the locked position).

[0073] The infant car seat 200 may include a handle extension actuator 252 (labeled in FIG. 24) configured to be engaged by a caregiver to move the handle extension latch 248 between a locked position and an unlocked position. The handle extension actuator 252 includes a movable body 254 having an engagement surface 254a configured to be engaged by a caregiver to actuate the handle extension actuator 252. In one example, the movable body 254 defines a push button that defines the engagement surface 254a. The push button can be actuated by depressing the push button into the handle 226 along the actuator direction DA, such as into the third handle portion 226c or another handle portion.

[0074] The handle extension actuator 252 can include a link 258, such as a wire or cable, extending from the movable body 254 to the handle extension lock 246. The handle extension actuator 252 can be configured such that movement of the movable body 254 by the caregiver correspondingly moves the link 258, thereby transitioning the handle actuation lock 246 between a locked position and an unlocked position. The handle extension actuator 252 can be configured to convert translational movement of the movable body 254 into the handle 226 along the action direction DA into translational movement of the link 258 along the handle 226. For example, the interior of the movable body 254 can define at least one inclined surface 254b, and the handle extension actuator 252 can include at least one wedge 256 having at least one inclined surface 256a that engages with the at least one inclined surface 254b of the movable body 254. The handle extension actuator 252 may be configured to move the at least one wedge 256 along a direction perpendicular to the action direction DA by causing the at least one inclined surface 254b of the movable body 254 to translate along the at least one inclined surface of the at least one wedge 256 when the movable body 254 is pushed by the caregiver. This, in turn, moves the link 258 along the handle 226 and moves the handle actuation lock 246. It will be understood that in other examples, the handle extension actuator 252 may be implemented in another suitable manner. For example, the handle extension actuator 252 may be implemented as a handle instead of a button and / or in another location, such as along one of the first and second handle portions 226a, 226b.

[0075] Bassinet or carrycot with push handle Although not shown, according to some examples, the child carrier may be a bassinet or carrycot. The bassinet or carrycot may have a body and / or frame as known in the art. The bassinet or carrycot may have a handle configured as discussed above in connection with infant car seat 200, such that the handle operates in the manner described above in connection with handle 226 of infant car seat 200. Additionally, the bassinet or carrycot may include couplings similar to couplings 214(1) and 214(2) and, optionally, couplings similar to couplings 218(1) and 218(2). It is understood that the above description of couplings 214(1), 214(2), 218(1), and 218(2) is equally applicable to a bassinet or carrycot.

[0076] Travel Organizer 29-33, the transport system 10 can optionally include a transport organizer 300, which can be configured to hold at least one item, such as a child caregiver's beverage container, a portable device, or other item. The organizer 300 can be configured to removably couple to the handle 226 of a child carrier (e.g., 200, 400). For example, the organizer 300 can be configured to couple to the handle 226 in the space between the first handle side bar 227a and the second handle side bar 227b, and between the grip bar 227c and the seat of the child carrier. The organizer 300 can be configured to couple to any suitable handle of any suitable child carrier (e.g., any infant car seat, toddler seat, bassinet, or carrycot).

[0077] The organizer 300 can have a first organizer side 300a and a second organizer side 300b offset from one another along the lateral direction A. In some examples, the organizer 300 can have a length along the lateral direction A that is greater than the width of the organizer 300 along the longitudinal direction L and / or the height of the organizer 300 along the vertical direction V.

[0078] The organizer 300 may include a tray 302 and a storage container 304 coupled to and disposed below the tray 302. The tray 302 may be formed from a suitably rigid material, such as a polymer or other suitable material. The tray 302 may have an upper tray edge 302a defining an upper surface and a lower tray edge 302b spaced from the upper tray edge 302a along a vertical direction V. The tray 302 may define at least one tray opening, such as multiple tray openings, extending within the upper tray edge 302a toward the lower tray edge 302b. For example, the tray 302 may define a circular tray opening 302c extending within the upper tray edge 302a. The circular tray opening 302c may be sized and shaped to receive a beverage container therein, such as a can, bottle, or cup. As another example, the tray 302 may additionally or alternatively define a tray opening 302d that defines a recess extending into the tray upper end 302a and closed at the bottom of the tray opening 302d. As yet another example, the tray 302 may additionally or alternatively define a tray opening 302e that defines a through-hole extending through the tray 302 (i.e., through the tray upper end 302a and the tray lower end 302b) such that the tray opening 302e opens to the storage container 304 below the tray 302. In some examples, the tray 302 may include a lid 306 that closes to cover at least one of the tray openings and opens to provide a caregiver with access to the contents of at least one of the tray openings.

[0079] The storage container 304 may have a container upper end 304a and a container lower end 304b spaced from the container upper end 304a along the vertical direction V. The container upper end 304a may define at least one container opening 304c extending therein and terminating before the container lower end 304b such that the at least one container opening 304c is closed. The at least one container opening 304c may be aligned with at least one of the openings of the tray 302 along the vertical direction. For example, the at least one container opening 304c may be aligned with the tray opening 302e such that an item can be placed into the at least one container opening 304c through the tray opening 302e. In some examples, the at least one tray opening 302e may be aligned with all of the tray openings along the vertical direction.

[0080] In some examples, the tray 302 and the storage container 304 can each have a cross-sectional shape that is perpendicular to the vertical direction, and the cross-sectional shapes of the tray 302 and the storage container 304 match and / or mate with one another. In alternative examples, the tray 302 can have a larger cross-sectional shape than when the storage container 304 is positioned only partially below the tray 302. When the tray 302 is coupled to the storage container 304, the tray 302 can act as a top for the storage container 304.

[0081] 34 and 35 , in some examples, the organizer 300 can be configured to transition between a compact configuration ( FIG. 34 ) and an expanded configuration ( FIG. 35 ). In particular, the tray 302 can be movably coupled to the storage container 304 such that the vertical distance between the tray 302 and the storage container 304 can be selectively increased or decreased. In other words, the organizer 300 can be transitioned from the compact configuration to the expanded configuration by increasing the distance between the tray 302 and the storage container 304, and from the expanded configuration to the compact configuration by decreasing the distance between the tray 302 and the storage container 304. When the organizer 300 is in the compact configuration, the tray 302 and the storage container 304 can be in contact with one another. The organizer 300 has a greater internal storage capacity when the organizer 300 is in the expanded configuration than when the organizer 300 is in the compact configuration.

[0082] The organizer 300 may include a flexible material 308 coupled to the tray 302 and the storage container 304. The flexible material 308 may be a fabric, such as a mesh fabric, or any other suitable material. In one example, the storage container 304 may be formed of a semi-rigid material, such as ethylene vinyl acetate (EVA), that is less rigid than the tray 302 but more rigid than the flexible material 308, and the flexible material 308 may be a fabric that is thermoformed to the storage container 304. The flexible material 308 may have a tubular shape defining an upper end 308a and a lower end 308b that are offset from each other along the vertical direction V. The flexible material 308 may define a receiving space extending from the upper end 308a to the lower end 308b. The upper end 308a may be coupled to the tray 302, such as the lower end 302b of the tray 302. The bottom end 308b may be coupled to the storage container 304, such as the top end 304a of the storage container 304. Alternatively, the bottom end 308b may surround the bottom end 304b of the storage container 304.

[0083] When the organizer 300 is in the expanded configuration, the flexible material 308 can define sides of the organizer 300 for container items within the receiving space. When the organizer 300 is in the compact configuration, the flexible material 308 can be folded inside the organizer 300. Although not shown, in some examples, the flexible material 308 can define an access opening on a side thereof between the open top ends 308a and 308b to provide a caregiver with access to the receiving space within the flexible material 308. Additionally or alternatively, the caregiver can access the receiving space through an opening 203e that defines a through-hole extending through the tray 302.

[0084] The organizer 300 can include a fastener 310 configured to selectively secure the organizer 300 in the compact configuration. For example, the fastener 310 can include a zipper having a first tape portion 310a with a first plurality of teeth and a second tape portion 310b with a second plurality of teeth configured to mate with the first plurality of teeth. The tray 302 can include the first tape portion 310a that can be attached to a body of the tray 302, such as the bottom end 302b of the tray 302. The storage container 304 can include the second tape portion 310b that can be attached to a body of the storage container 304, such as the top end 304a of the storage container 304. In alternative examples, the organizer 300 can be implemented with a fastener 310 other than a zipper, such as a snap, button, toggle latch, or any other suitable fastener that can secure the organizer 300 in the compact configuration.

[0085] 31 and 32, as discussed above, the organizer 300 can be configured to be removably attached to the handle 226 of the infant car seat 200. The organizer 300 can define a first coupling portion 312(1) on the first organizer side 300a configured to engage the first coupling portion 229 (see FIG. 26) of the first handle side bar 227a of the handle 226 to couple the first organizer side 300a to the first handle side bar 227a. The first coupling portion 312(1) of the organizer 300 can define at least one of a protrusion and an opening, and the first coupling portion of the handle 226 can define the other of the protrusion and the opening configured to mate with the first coupling portion 312(1). Similarly, the organizer 300 can define a second coupling portion 312(2) on the second organizer side 300b configured to engage the second coupling portion 229 of the second handle sidebar 227b of the handle 226 to couple the second organizer side 300b to the second handle sidebar 227b. The first coupling portion 312(2) of the organizer 300 can define at least one of a protrusion and an opening, and the second coupling portion of the handle 226 can define the other of the protrusion and an opening configured to mate with the second coupling portion 312(2).

[0086] 31 and 32 show a specific example in which the first and second coupling portions 312(1) of the organizer 300 each define a protrusion, and the coupling portion 229 of the car seat handle 226 defines an opening for receiving the protrusion. The first and second coupling portions 312(1) and 312(2) are attached to the tray 302, although in alternative examples, the coupling portions may be attached to other portions of the organizer 300. One of the coupling portions, such as the protrusion of the first coupling portion 312(1), may be positioned and fixed so as not to retract into the organizer 300. Additionally or alternatively, the other of the coupling portions, such as the protrusion of the second coupling portion 312(2), may be configured to selectively extend from the organizer 300 (FIG. 32) and retract into the organizer 300 (FIG. 33). In such an example, the protrusion of the second coupling portion 312(2) may be spring biased to protrude from the organizer 300. The organizer 300 may optionally include an actuator 314 configured to be engaged by a caregiver to transition the protrusion of the first coupling portion 312(1) between an extended position (FIG. 32) and a retracted position (FIG. 33).

[0087] 24 and 26-28, in some examples, the infant car seat 200 can be configured so that the organizer 300 can be loaded only when the handle 226 is in the extended position. Additionally or alternatively, in some embodiments, the infant car seat 200 can be configured so that the handle 226 cannot be retracted when the organizer 300 is coupled. For example, the handle 226 of the infant car seat 200 can include at least one organizer latch 260 configured to transition between a blocking position ( FIG. 26 ) that prevents the organizer 300 from attaching to the coupling portion 229 of the car seat handle 226, and an unblocking position (e.g., FIG. 27 ) that allows the organizer 300 to attach to the coupling portion 229 of the car seat handle 226.

[0088] Each organizer latch 260 may be implemented on one of the handle side bars 227a, 227b. In some examples, each handle side bar 227a, 227b may include an organizer latch 260. While FIGS. 26 and 27 show a specific example of the organizer latch 260, it will be understood that the organizer latch 260 may be implemented in any other suitable manner. The organizer latch 260 may define an opening 260a therein. The organizer latch 260 may be configured such that the opening 260a of the organizer latch 260 is substantially aligned with the opening defined by the handle coupling portion 229 when the organizer latch 260 is in the non-blocking position (FIG. 27). As such, one of coupling portions 312(1), 312(2) of organizer 300 can be inserted through opening 229 in handle 226 and into opening 260a in organizer latch 260. This is shown in FIG. 28. In some examples, organizer latch 260 can be coupled to link 258 of handle extension actuator 252 such that when a caregiver activates handle extension actuator 252, organizer latch 260 moves from the unlocked position ( FIG. 27 ) to the blocked position ( FIG. 26 ). Referring to FIG. 28 , when organizer 300 is attached to car seat handle 226, each of coupling portions 312(1), 312(2) interferes with the movement of organizer latch 260, thereby preventing the caregiver from activating handle extension actuator 252. Thus, handle 226 is prevented from moving from the extended position to the retracted position while organizer 300 is coupled to handle 226. Conversely, while the handle extension actuator 252 is actuated by the caregiver, the organizer latch 260 is in a blocking position, preventing the organizer 300 from being installed.

[0089] The infant car seat handle 226 can be configured such that when the infant car seat handle 226 is in the retracted position, each organizer coupling portion 229 of the handle 226 is covered by one of the first and second handle portions 226 a, 226 b. In other words, in the retracted position, each organizer coupling portion 229 can be retracted toward the inside of one of the first and second handle portions 226 a, 226 b such that the organizer 300 cannot couple to the organizer coupling portion 229.

[0090] 24 and 26-28 illustrate an example in which each organizer coupling portion 229 of infant car seat handle 226 defines an opening configured to receive a protrusion on coupling portions 312(1), 312(2) of organizer 300, but examples of the present disclosure are not limited in this respect. In alternative examples, each organizer coupling portion 229 of infant car seat handle 226 can include a protrusion (not shown) extending inwardly from handle 226, and each coupling portion 312(1), 312(2) of organizer 300 includes an opening configured to receive a corresponding one of the protrusions. In some such examples, the protrusion on each organizer coupling portion 229 can be configured to retract into handle 226 when handle 226 is in the retracted position, thereby preventing organizer 300 from attaching to coupling portion 229. Furthermore, when organizer 300 is attached to each organizer coupling 229 of handle 226, each coupling 229 interferes with each of couplings 312(1), 312(2) of organizer 300, thereby preventing each of couplings 312(1), 312(2) from retracting into handle 226. The handle 226 discussed above may alternatively be implemented on a child carrier other than an infant car seat, such as on an infant seat 400, or on a bassinet or carrycot. Thus, the above description is equally applicable to infant seat 400, or a bassinet, or carrycot.

[0091] Infant seat with push handle Returning to FIGS. 36A-37B, the transport system 10 is shown including the child carriage 100 of FIGS. 3 and 4 and a removable child carrier 400, which is an infant seat. The infant seat 400 includes a seat frame 402 and a push handle 404 attached to the seat frame 402. The seat frame 402 may be a tubular frame formed from one or more tubes. The seat frame 402 includes first and second side rails 406, 408 spaced apart from each other along the lateral direction A to define an opening or space 410 therebetween within which a child is positioned when seated in the infant seat. The infant seat 400 may include a seating surface 416a and a fabric 416 disposed within the space 410, the fabric 416 being configured to provide cushioning for the infant. The fabric 416 may define a seat pan 416b and a seat back 416c. The fabric 416 may define a pair of spaced-apart side walls 416d. A seat pan 416b and a seat back 416c may extend between the side walls 416d. In an alternative example (not shown), the infant seat 400 may include a plastic body defining a seating surface 416a, including a seat pan 416b and a seat bottom surface 416c.

[0092] The first side rail 406 has a first rail end 406a and a second rail end 406b spaced apart from each other along a first direction D1. The first side rail 406 may have an elongated length along the first direction D1. Similarly, the second side rail 408 has a first rail end 408a and a second rail end 408b spaced apart from each other along the first direction D1. The second side rail 406 may have an elongated length along the first direction D1. The seat frame 402 may include a foot rail 412 extending between the first and second side rails 406 and 408. For example, the foot rail 412 may extend from the second rail end 406b of the first side rail 406 to the second rail end 408b of the second side rail 408. The foot rail 412 may extend along a second direction D2 that is perpendicular to the first direction D1. In some examples, the second direction D2 can be aligned with the lateral direction A. The foot rail 412 can have an elongate length along the second direction D2. Thus, the first side rail 406, the second side rail 408, and the foot rail 412 can together define a "U" shape. The first side rail 406, the second side rail 408, and the foot rail 412 can be separate pieces that are joined to one another or can be portions of a continuous tube that is bent to define the shape of the seat frame 402.

[0093] The push handle 404 is configured to be grasped by a caregiver to push the transport system 10 when the infant seat 400 is attached to the child carriage 100. For example, the push handle 404 may extend above the seat frame 402 so as to be accessible to a caregiver. The infant seat 400 is configured such that removing the infant seat 400 from the child carriage 100 causes the handle 400 to be removed from the child carriage 100 along with the infant seat 400.

[0094] The push handle 404 may be configured to transition between the extended position and the retracted position. In some examples, the push handle 404 may be configured to transition to one or more intermediate positions between the extended position and the retracted position. The push handle 404 may extend further above the seat frame 402 when in the extended position but not in the retracted position. In one example, the push handle 404 may be attached to the seat frame 402 such that the handle 404 nests relative to the seat frame 402. For example, the handle 404 may include a first handle portion 404a and a second handle portion 404b. The first handle portion 404a may nest relative to the first side rail 406, and the second handle portion 404b may nest relative to the second side rail 408. The first and second handle protrusions 404a and 404b may be offset from one another along the lateral direction A. The handle 404 may optionally include a third handle portion 404c extending between the first and second handle portions 404a and 404b. In an alternative example (not shown), the push handle may be pivotally mounted to the seat frame at a pivot point such that the handle rotates toward and away from the seat frame along a pivot axis, which may extend, for example, along the second direction D2.

[0095] Referring to FIG. 38 , the infant seat 400 may include at least one handle extension lock 420 configured to selectively lock the handle 404 in the extended and retracted positions. The at least one handle extension lock 420 is configured to selectively lock the handle 404 in the retracted and extended positions. Each handle extension lock 420 may be implemented on one of the first and second handle portions 404 a and 404 b. The handle extension lock 420 may include a handle extension latch 422 configured to move between a locked position ( FIG. 38 ) and an unlocked position. In the locked position, the latch 422 prevents the handle 404 from moving between the extended and retracted positions. In the unlocked position, the handle 404 is permitted to move between the extended and retracted positions. For example, the handle extension latch 422 may define a protrusion 422 a configured to move between the locked and unlocked positions. The handle extension latch 422 can move along a direction angularly offset from, e.g., perpendicular to, the axis AH of the first or second handle portion 404a or 404b. In the locked position, the protrusion 422a of the handle extension latch 420a extends into an opening 409 in one of the first and second side rails 406 and 408 such that the protrusion 422a blocks the handle 404 from extending. One of the first and second side rails 406 and 408 may each include multiple openings 409 offset from one another along the axis AH that correspond to different positions of the handle 404. In the unlocked position, the protrusion 422a of the handle extension latch 422 is removed from the opening 409 in one of the first and second side rails 406 and 408, thereby extending or retracting the handle 404.

[0096] The handle extension lock 420 may include a latch guide 424 configured to guide movement of the latch 420 between the locked and unlocked positions. The latch guide 424 may be configured to translate along a selected direction DS along the axis AH of the handle 404. The latch guide 424 may include a guide surface that guides a corresponding surface of the latch 422. For example, the latch guide 424 may include a slot 424a angularly offset from the selected direction DS, and the latch 422 may include a pin 422b received in the slot 424a. When the latch guide 424 is moved upward along the selected direction DS, the pin 422b translates along the slot 424a, moving the protrusion 422a out of the opening 409 in one of the first and second side rails 406 and 408. When the latch guide 424 is moved downward along the selected direction DS, the pin 422b translates along the slot 424a, causing the protrusion 422a to move into one of the openings 409 in one of the first and second side rails 406 and 408.

[0097] The infant seat 400 may include a handle extension actuator 426 (labeled in FIG. 36A ) configured to be engaged by a caregiver to move the handle extension lock 420 between a locked position and an unlocked position. The handle extension actuator 426 may be implemented in any suitable manner. The handle extension actuator 426 includes a movable body having an engagement surface configured to be engaged by a caregiver to actuate the handle extension actuator 426. In one example, the movable body defines a push button that defines the engagement surface. The push button may be actuated by depressing the push button into the handle 404.

[0098] With continued reference to FIG. 38 , the handle extension actuator 426 may include a link 428, such as a wire, cable, or band, extending from the movable body of the actuator 426 to the handle extension lock 420. The handle extension actuator 426 may be configured so that movement of the movable body by the caregiver correspondingly moves the link 428, thereby transitioning the handle actuation lock 420 between a locked position and an unlocked position. The handle extension actuator 426 may be configured to convert translational movement of the movable body of the actuator 426 into translational movement of the link 428 along axis AH. It will be appreciated that in other examples, the handle extension actuator 426 may be implemented in another suitable manner. For example, the handle extension actuator 426 may be implemented as a pull handle rather than a button, or as a collar that translates along a portion of the handle 404. The handle extension actuator 426 may also be implemented in locations other than those shown.

[0099] 36A-37B, infant seat 400 can be configured to move between an extended configuration (FIG. 37A) and a folded configuration (FIG. 37B). Frame 402 can include an upper frame end 402a and a lower frame end 402b, such that when a child is seated in infant seat 400, upper frame end 402a is positioned closer to the child's head and lower frame end 402b is positioned closer to the child's legs. Infant seat 400 is configured to be transitioned from the extended configuration to the folded configuration by rotating upper frame end 402a toward lower frame end 402b, and from the folded configuration to the extended configuration by rotating upper frame end 402a away from lower frame end 402b. In the folded configuration, upper frame end 402a can be substantially parallel to lower frame end 402b. The frame 402 may include a pair of folding hubs 418(1), 418(2) that pivotally connect the upper frame end 402a and the lower frame end 402b relative to one another. The first folding hub 418(1) may be attached to the first side rail 406 between the first and second rail ends 406a and 406b of the first side rail 406. Similarly, the second folding hub 418(2) may be attached to the second side rail 408 between the first and second rail ends 408a and 408b of the second side rail 408. The infant seat 400 may be configured to remain secured to the carriage 100 when the infant seat is in the folded configuration and the carriage 100 is in the first folded configuration, as shown in FIG. 37B . As shown, when both infant seat 400 and carriage 100 are folded, couplings 116(1), 116(2) can be rotated forward so that upper frame end 402a of infant seat 400, lower frame end 402b of infant seat 400, and front legs 108(1), 108(2) of carriage 100 can be approximately parallel to one another.

[0100] 39A-39C, infant seat 400 may include at least one folding latch 430 configured to releasably lock child carriage 100 in the extended position. Each folding latch 430 may be disposed within one of folding hubs 418(1), 418(2). Each folding latch 430 may be implemented in any suitable manner. FIGS. 39A-39C show an example of first folding hub 418(1). Second folding hub 418(2) may be implemented similarly. However, it will be understood that folding hub 418(1) and folding latch 430 may be implemented in another suitable manner. Infant seat 400 may include a fold actuator 432 (labeled in FIG. 36B) configured to actuate at least one fold latch 430 to move at least one fold latch 430 between an unlocked position that allows infant seat 400 to fold and a locked position that prevents infant seat 400 from folding. Actuator 432 may be any suitable actuator.

[0101] Generally, each folding hub 418(1), 418(2) has a lower end plate 434 and an upper end plate 436 pivotally coupled relative to one another. The upper end plate 436 is positionably fixed to the upper frame end 402a of the seat frame 402 such that rotation of the upper frame end 402a results in corresponding rotation of the upper end plate 436. The lower end plate 434 is positionably fixed to the lower frame end 402b of the seat frame 402 such that rotation of the lower frame end 402b results in corresponding rotation of the lower end plate 434. The upper end plate 436 and the lower end plate 434 may be aligned relative to one another along a folding pivot axis AF. The folding latch 430 can be rotatably fixed to one of the upper end plate 436 and the lower end plate 434 and can be configured to releasably engage the other of the upper end frame 436 and the lower end frame 434 so as to rotatably lock the frame upper end 402a and the frame lower end 402b relative to each other.

[0102] For example, FIGS. 39A-39C illustrate one embodiment in which the folding latch 430 is rotatably fixed relative to the top plate 436 and configured to releasably engage the bottom plate 434. The folding latch 430 is translatable relative to the top plate 436 along the axis of the top end 402a. The bottom plate 434 can define a guide slot 434a and multiple recesses 434b, 434c extending from the guide slot 434a. The guide slot 434a can be curved to define an arc or a circle. Each recess 434b, 434c can correspond to a different folding configuration of the infant seat 400. For example, the bottom plate 434 can define a first recess 434b corresponding to the extended configuration and a second recess 434c corresponding to the folded configuration. The folding latch 430 includes a protrusion 430a configured to translate along a guide slot 434a as the infant seat 400 transitions between the folded and expanded configurations. The protrusion 430a may extend through a linear slot 436a in the upper end plate 436 and into a guide slot 434a in the lower end plate 434 to translate along the linear slot 436a. The protrusion 430a is configured to be selectively received in the recesses 434b, 434c to rotatably lock the frame upper end 402a and the frame lower end 402b relative to one another in one of the expanded and collapsed configurations. Figure 39B shows the infant seat 400 in an extended configuration with the projection 430a of the fold latch 430 received within the first recess 434b, and Figure 39C shows the infant seat 400 in a folded configuration with the projection 430a of the fold latch 430 received within the second recess 434b.

[0103] The infant seat 400 may optionally include an arm bar or child tray 438. The arm bar or child tray 438 may be configured to fold with the seat frame 402. In one example, a folding hub may be configured to guide the arm bar or child tray 438 as it transitions between the extended and folded configurations. For example, the arm bar or child tray 438 may include a hub 440 having a protrusion 440a. The bottom end plate 434 may have a first groove 434d that receives the protrusion 440a of the hub 440. The first groove 434d may be curved to define an arc or a circle. The first groove 434d may have an upper end 434e that limits movement of the protrusion 440a, and therefore the arm bar or tray 438, in an upward direction when the infant seat 400 is in the extended configuration, as shown in FIG. 39B . The top end plate 436 can have a second groove 436b that receives the protrusion 440a of the hub 440. The second groove 436b has a lower end 436c and a lower end 436d. The lower end 436d limits the downward movement of the protrusion 440a, thereby limiting the downward movement of the arm bar or tray 438, when the infant seat 400 is in the extended configuration, as shown in FIG. 39B. When the frame 402 is rotated to the folded configuration, the top end plate 436 rotates downward, causing the upper end 436d of the second groove 436b to rotate downward and engage the protrusion 440a of the hub 440, driving the protrusion 440a, and therefore the arm bar or tray 438, downward, as shown in FIG. 39C.

[0104] 36A to 37B, the infant seat 400 is configured to be removably coupled to the child carriage 100. The infant seat 400 may include at least one coupling portion configured to removably couple the infant seat 400 to the carriage 100. The at least one coupling portion may include a pair of coupling portions 414(1), 414(2). The first coupling portion 414(1) of the pair may be configured to be removably coupled to the first seat coupling portion 116(1) of the child carriage 100. The first coupling portion 414(1) may be attached to the first side rail 406 between the first and second rail ends 406a and 406b of the first side rail 406. The second coupling portion 414(2) of the pair may be configured to be removably coupled to the second seat coupling portion 116(2) of the child carriage 100. The second coupling 414(2) may be attached to the second side rail 408 between the first and second rail ends 408a and 408b of the second side rail 408.

[0105] 40A-42, in some examples, each of the first and second coupling portions 414(1), 414(2) of the infant seat 400 can define a receptacle 442 configured to receive the bayonet 117 of a corresponding one of the first and second seat coupling portions 116(1) and 116(2). Note that in alternative examples, the child carriage can include the receptacle, and the infant seat 400 can include the bayonet. Each receptacle 442 defines a recess 444 configured to receive at least a portion of the corresponding one of the bayonets 117 therein, such as an upper portion of the bayonet 117. Each of the first and second coupling portions 414(1), 414(2) can define a protrusion or opening 446a configured to engage the other one of the protrusions and openings 118 (labeled in FIG. 5A ) of the child carriage 100. 40A-42 show an example in which each of the first and second coupling portions 414(1), 414(2) defines a protrusion 446a configured to be received in an opening 118 (labeled in FIG. 5A) of the child carriage 100. Each protrusion 446a extends into a recess 444 in each of the coupling portions 414(1), 414(2). Each coupling portion 414(1), 414(2) can engage a different lateral side of the child carriage 100 to limit movement of the infant seat 400 relative to the carriage 100 along the lateral direction A, the vertical direction V, and / or the longitudinal direction L.

[0106] In some examples, each coupling portion 414(1), 414(2) may include a movable latch 446 with a protrusion 446a. The movable latch 446 may be movable between a latched position (FIG. 41B) and an unlatched position (FIG. 41A). In the latched position, the protrusion 446a may extend into an opening 118 of a corresponding one of the seat coupling portions 116(1), 116(2) of the child carriage 100. In the unlatched position, the protrusion 446a is removed from the opening 118.

[0107] 41A-42, infant seat 400 may include an actuator 450 for each coupling 414(1), 414(2) configured to be engaged by a caregiver to move latch 446 between a latched position and an unlatched position. Each actuator 450 may be any suitable actuator. Each actuator 450 may define an actuation surface 452, such as a push button, configured to be recessed within a corresponding one of folding hubs 418(1), 418(2). In an alternative example (not shown), each actuation surface 452 may define a pull handle. Each actuator 450 may include at least one link 454 operably coupling engagement surface 452 to movable latch 446. In one example, at least one link 454 can have at least one inclined surface 454a, such as a pair of inclined surfaces 454a, that engage with at least one corresponding engagement surface 446b of the latch 446, such that the at least one engagement surface 454a rides along the at least one inclined surface 454a, thereby allowing the latch 446 to pivot between the latched position and the unlatched position.

[0108] 40A and 40B , in some examples, the infant seat 400 may include at least one other coupling portion 456, such as a pair of other coupling portions 456 disposed in front of or behind the pair of coupling portions 414(1), 414(2). The pair of other coupling portions 456 may be offset from one another along the lateral direction A. Each of the at least one other coupling portion 456 may be attached to each of the first and second side rails 406, 408. Each of the at least one other coupling portion 456 may be configured to be removably coupled to one of the at least one other coupling portions 132(1) or 132(2) (labeled in FIG. 3 ) of the child carriage 100. Each of the at least one other coupling portion 456 couples the infant seat 400 to the carriage 100 so as to limit the torque applied to the pair of coupling portions 414(1), 414(2) when force is applied to the handle 404 (see FIG. 36) of the infant seat 400.

[0109] In some examples, each of the at least one other coupling portions 456 may include a movable latch 458 configured to move between a latched configuration ( FIG. 40B ) and an unlatched configuration ( FIG. 40A ). For example, each movable latch 458 may define a hook configured to pivot between the latched and unlatched configurations. Each movable latch 458 may be configured to be actuated by an actuator 450. The actuator 450 may be any suitable actuator. In some examples, each movable latch 458 may be actuated by an actuator 450 that also actuates one of the latches 446. Each actuator 450 may include a link 460 that operably couples one of the latches 446 to a corresponding one of the actuation surfaces 452. Each link 460 may extend at least partially within one of the first and second side rails 406 and 408. Actuation of the actuator 450 causes translation of the link 406, thereby pivoting the latch 458 between the latched ( FIG. 40B ) and unlatched configurations ( FIG. 40A ). The latch 458 may be biased toward the latched configuration.

[0110] It should be noted that the illustrations and descriptions of the examples and embodiments shown in the drawings are for illustrative purposes only and should not be construed as limiting the present disclosure. Those skilled in the art will recognize that the present disclosure contemplates various embodiments. In addition, it should be understood that the concepts described above in accordance with the above examples and embodiments may be employed alone or in combination with any of the other examples and embodiments described above. Furthermore, it should be understood that the various alternatives and embodiments described above for one illustrated embodiment may apply to all examples and embodiments described herein, unless otherwise specified.

[0111] Unless expressly stated otherwise, each numerical value and range should be construed as being approximate, as if the value or range were preceded by the words "about," "approximately," or "substantially." The terms "about," "approximately," or "substantially" can be understood as describing a range within 15 percent of the specified value, unless otherwise stated.

[0112] In particular, conditional language used herein, such as "can," "could," "could," "could," "for example," and the like, is generally intended to convey that certain embodiments include certain features, elements, and / or steps, but not others, unless specifically stated otherwise or understood otherwise in the context of use. Thus, such conditional language is generally not intended to imply that features, elements, and / or steps are in any way required by one or more embodiments, or to include the logic in determining whether one or more embodiments include these features, elements, and / or steps, or whether they must be implemented in any particular embodiment, regardless of whether they were entered or suggested by the author. Terms such as "comprising," "including," and "having" are synonymous and are used in an open-ended, inclusive manner and do not exclude additional elements, features, acts, operations, etc. Additionally, the term "or" is used in an inclusive (not exclusive) sense; when used, for example, to connect a list of elements, the term "or" may refer to one, some, or all of the elements in the list.

[0113] Although specific examples have been described, these examples are not intended to limit the scope of the invention(s) disclosed herein. Thus, nothing in the above description should be construed as implying that any particular feature, characteristic, step, module, or block is required or essential. Indeed, the novel methods and systems described herein may be embodied in a variety of other forms. Furthermore, various omissions, substitutions, and changes may be made in the form of the methods and systems described herein without departing from the spirit of the invention(s) disclosed herein. The accompanying embodiments and their equivalents are intended to cover any such forms or modifications within the scope and spirit of certain of the invention(s) disclosed herein.

[0114] It should be understood that the steps of the example methods described herein do not necessarily have to be performed in the order described, and the order of the steps of such methods should be understood as merely exemplary. Similarly, additional steps may be included in such methods, and certain steps may be omitted or combined in methods consistent with various embodiments of the present invention.

[0115] Although elements in the methods below are referred to in a particular sequence by corresponding labeling, where applicable, these elements are not necessarily intended to be limited to implementation in a particular sequence, unless a claim reference otherwise implies a particular sequence for implementing some or all of these elements.

[0116] The words "inwardly," "outwardly," "upwardly," and "downwardly" refer respectively to directions toward and away from the geometric center of the component. It will be understood that the use of an indefinite article or the use of "a" or "an" herein describing a feature, such as a component or step, does not exclude additional features or features. For example, a reference to a device having, comprising, including, or defining "a" feature does not exclude the device from having, comprising, including, or defining more than one feature, so long as the device has, comprises, includes, or defines at least one feature. Similarly, a reference to "one of" multiple features herein does not exclude the invention from including more than one of the features. For example, a reference to a device having, comprising, including, or defining "one of a protrusion and a recess" does not exclude the device from having both a protrusion and a recess. [Additional note 1] a child carrier configured to be removably coupled to a child carriage for pushing the child carrier; a frame or body defining an opening configured to support a child therein; a handle coupled to the frame or body and configured to transition between an extended position and a retracted position relative to the frame or body and configured to rotate between a plurality of rotational positions relative to the frame or body; a handle rotation lock having a rotation latch configured to move along the axis of the handle between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions. [Additional note 2] A child carrier as described in Appendix 1, comprising a handle rotation stop configured to move between (1) a blocking position that prevents the handle from rotating from one of the rotation positions to another regardless of the position of the handle rotation lock, and (2) a release position that allows the handle to rotate from one of the rotation positions to another while the handle rotation lock is in the unlocked position. [Additional note 3] the handle having a first side bar, a second side bar, and a grip bar extending between the first and second side bars; A child carrier as described in appended claim 2, wherein the child carrier comprises first and second hubs that pivotally connect the first and second side bars to the first and second sides of the seat frame or main body, respectively. [Additional note 4] 4. The child carrier of claim 2 or 3, wherein the handle rotation stop blocks the handle rotation lock from moving to the non-rotating position while the handle rotation stop is in the blocking position. [Additional note 5] 5. The child carrier according to any one of claims 2 to 4, wherein movement of the handle from the extended position to the retracted position moves the handle rotation stop to the released position. [Additional note 6] the handle rotation lock comprises a lock plate; the rotational latch engages the locking plate to lock the handle in each of the plurality of rotational positions; 5. The child carrier of any one of claims 2 to 4, wherein the rotation latch disengages from the locking plate to allow the handle to rotate relative to the frame or main body. [Additional note 7] A child carrier as described in appended claim 6, wherein the locking plate defines a plurality of grooves or protrusions, and the rotational latch defines at least one protrusion or groove configured to selectively engage with the grooves or protrusions to selectively lock the handle in each of the different rotational positions. [Additional note 8] A child carrier as described in any one of appendix items 2 to 7, wherein the rotating latch is rotatably fixed to the handle so that rotation of the handle causes the rotating latch to rotate together with the handle relative to the lock plate. [Additional note 9] A child carrier as described in any one of appendix items 2 to 8, wherein the handle is configured to rotate relative to the frame or body about a handle pivot, and the handle rotation stop is configured to rotate about the pivot between the blocking position and the release position. [Additional Note 10] A child carrier as described in Appendix 9, wherein the rotating latch defines a slot that receives the pivot so that the pivot translates within the slot when the rotating latch moves between the locked position and the unlocked position. [Additional Note 11] A child carrier as described in any one of appended claims 2 to 10, wherein the handle rotation stop has a first engagement surface configured to engage with the handle rotation lock while the handle is in the blocking position, and a second engagement surface configured to be engaged by the handle while the handle is in the retracted position and to move the handle rotation stop to the release position. [Additional Note 12] 12. The child carrier according to any one of claims 2 to 11, wherein the handle rotation stop is spring-biased toward the blocking position. [Additional Note 13] a handle extension lock configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions; 13. The child carrier of claim 2, further comprising a handle extension stop configured to move between: 1) a blocking position that prevents the handle from moving from the retracted position to the extended position regardless of the position of the handle extension lock; and 2) a release position that allows the handle to move from the retracted position to the extended position while the handle extension lock is in its unlocked position. [Additional Note 14] 14. The child carrier of claim 13, wherein the handle extension stop is configured to rotate about an axis of rotation between the release position of the handle extension stop and the blocking position of the handle extension stop. [Additional Note 15] 15. A child carrier as described in appended paragraph 14, wherein the rotation axis is disposed within a handle hub that rotatably couples the handle to one side of the frame or body. [Additional Note 16] the handle comprises an outer portion and an inner portion nested within the outer portion; 16. A child carrier as described in any one of clauses 13 to 15, wherein the handle extension stop comprises a protrusion that extends through an opening in each of the outer and inner portions of the handle while the handle extension stop is in the blocking position of the handle extension stop. [Additional Note 17] 17. A child carrier as described in any one of appended clauses 13 to 16, wherein the handle extension stop is moved between the blocking position and the releasing position of the handle extension stop by rotating the handle. [Additional Note 18] the child carrier includes a handle hub rotatably coupling the handle to one side of the frame or body; the handle extension stop has a first side defining the projection and a second side opposite the first side; 17. The child carrier of claim 16, wherein the handle extension stop is configured such that, as the handle is rotated, the second side of the handle extension stop rides up along the inner surface of the handle hub until the second side is aligned with an opening in the inner surface that receives the handle extension stop, thereby allowing the handle extension stop to be moved to its release position. [Additional Note 19] a child carrier configured to removably couple to a child carriage for pushing the child carrier; a frame or body defining an opening configured to support a child therein; a handle coupled to the frame or body by a handle hub such that the handle is configured to rotate relative to the frame or body between a plurality of rotational positions and configured to transition between an extended position and a retracted position relative to the frame or body; a handle extension lock configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions; a handle extension stop disposed within the handle hub and configured to move between 1) a blocking position that prevents the handle from moving from the retracted position to the extended position regardless of the position of the handle extension lock, and 2) a release position that allows the handle to move from the retracted position to the extended position while the handle extension lock is in the unlocked position. [Additional Note 20] 20. The child carrier of claim 19, wherein the handle extension stop is configured to be in the release position when the handle is in a first rotational position for pushing the child carrier on the child carriage, and to be in the blocking position when the handle is in a second rotational position for transporting the child carrier. [Additional Note 21] 21. The child carrier of claim 19 or 20, wherein the handle extension stop is configured to rotate about an axis of rotation between the release position and the blocking position. [Additional Note 22] 22. The child carrier of claim 21, wherein the rotation axis is disposed within the handle hub. [Additional note 23] the handle comprises an outer portion and an inner portion nested within the outer portion; 23. A child carrier as described in any one of clauses 19 to 22, wherein the handle extension stop comprises a protrusion that extends through an opening in each of the outer portion and the inner portion while the handle extension stop is in the blocking position. [Additional note 24] 24. The child carrier of any one of clauses 19 to 23, wherein the handle extension stop is moved between the blocked position and the released position by rotating the handle. [Additional note 25] the handle extension stop has a first side defining a protrusion and a second side opposite the first side; 25. The child carrier of any one of claims 19 to 24, wherein the handle extension stop is configured such that, when the handle is rotated, the second side of the handle extension stop rides up along the inner surface of the handle hub until the second side is aligned with an opening in the inner surface that receives the handle extension stop, thereby allowing the handle extension stop to be moved to the released position. [Additional note 26] a handle rotation lock configured to move between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions; 26. A child carrier as described in any one of appended clauses 19 to 25, comprising a handle rotation stop configured to move between (1) a blocking position that prevents the handle from rotating from one of the rotation positions to another regardless of the position of the handle rotation lock, and (2) a release position that allows the handle to rotate from one of the rotation positions to another while the handle rotation lock is in the unlocked position of the handle rotation lock. [Additional note 27] 27. The child carrier of clause 26, wherein movement of the handle from the extended position to the retracted position moves the handle rotation stop to the released position. [Additional note 28] 28. A child carrier as described in claim 26 or 27, wherein the handle rotation lock includes a rotation latch that translates along the axis of the handle when the handle rotation lock moves between its unlocked and locked positions. [Additional note 29] 29. The child carrier of any one of clauses 19 to 28, wherein the handle hub includes a housing, and the handle extension stop is disposed entirely within the handle. [Additional note 30] 1. A mobile system comprising: A child carriage, a frame having an upper end and a lower end; a child carriage comprising: a plurality of wheels attached to the lower end; a child carrier configured to removably couple to the upper end, the child carrier comprising: a frame or body defining an opening configured to support a child therein; a handle coupled to the frame or body and configured to transition between an extended position and a retracted position relative to the frame or body and to rotate relative to the frame or body between a plurality of rotational positions; a handle rotation lock configured to move between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions; a handle rotation stop configured to move between (1) a blocking position that prevents the handle from rotating from one of the rotation positions to another regardless of the position of the handle rotation lock, and (2) a release position that allows the handle to rotate from one of the rotation positions to another while the handle rotation lock is in the unlocked position; A travel system wherein the carriage does not include any push handle extending above the child carrier, and the child carrier is configured to push the child carriage when the child carrier is coupled to the child carriage. [Additional note 31] 31. The transfer system of claim 30, wherein the handle rotation lock includes a rotation latch configured to move along the axis of the handle between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions. [Additional note 32] 32. The transfer system of claim 30 or 31, wherein the child carrier is configured such that movement of the handle from the extended position to the retracted position moves the handle rotation stop to the released position. [Additional note 33] 33. The transfer system of any one of clauses 30 to 32, wherein the handle is configured to rotate relative to the frame or body about a handle pivot, and the handle rotation stop is configured to rotate about the pivot between the blocked position and the released position. [Additional note 34] 34. A child carrier as described in claim 33, wherein the rotating latch defines a slot that receives the pivot such that the pivot translates within the slot when the rotating latch moves between the locked position and the unlocked position. [Additional note 35] 35. The child carrier according to any one of claims 30 to 34, wherein the handle is connected to the frame or body by a handle hub, and the handle rotation stop is disposed within the handle hub. [Additional note 36] 1. A mobile system comprising: A child carriage, a frame having an upper end and a lower end; a child carriage comprising: a plurality of wheels attached to the lower end; a child carrier configured to removably couple to the upper end, the child carrier comprising: a frame or body defining an opening configured to support a child therein; a handle coupled to the frame or body and configured to transition between an extended position and a retracted position relative to the frame or body and configured to rotate between a plurality of rotational positions relative to the frame or body; a handle extension lock configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions; a handle extension stop configured to move between: 1) a blocking position that prevents movement of the handle from the retracted position to the extended position regardless of the position of the handle extension lock; and 2) a release position that allows movement of the handle from the retracted position to the extended position while the handle extension lock is in the unlocked position; A travel system wherein the carriage does not include any push handle extending above the child carrier, and the handle of the child carrier is configured to push the child carriage when the child carrier is coupled to the child carriage. [Additional note 37] 37. The transfer system of claim 36, wherein the handle is coupled to the frame or body by a handle hub, and the handle extension stop is disposed within the handle hub. [Additional note 38] 38. The transfer system of claim 36 or 37, wherein the handle extension stop is configured to be in the release position when the handle is in a first rotational position for pushing the child carrier on the child carriage, and to be in the blocking position when the handle is in a second position for transporting the child carrier. [Additional note 39] 39. The transfer system of any one of clauses 36 to 38, wherein the handle extension stop prevents extension of the handle while the handle is in the second rotational position, regardless of whether the handle extension stop is in the locked or unlocked position. [Additional note 40] the child carrier includes a handle hub rotatably coupling the handle to one side of the frame or body; the handle extension stop has a first side defining the projection and a second side opposite the first side; 40. The transfer system of any one of clauses 36 to 39, wherein the handle extension stop is configured such that, as the handle is rotated, the second side of the handle extension stop rides up along an inner surface of the handle hub until the second side aligns with an opening in the inner surface that receives the handle extension stop, thereby allowing the handle extension stop to be moved to the released position.

Claims

1. a child carrier configured to be removably coupled to a child carriage for pushing the child carrier; a frame or body defining an opening configured to support a child therein; a handle coupled to the frame or body, configured to transition between an extended position and a retracted position relative to the frame or body, and configured to rotate between a plurality of rotational positions relative to the frame or body; a handle rotation lock having a rotation latch configured to move along the axis of the handle between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions; Equipped with the handle is translatable between the retracted position and the extended position when the handle is in the first rotated position; A child carrier wherein the handle is non-translatable between the retracted position and the extended position when the handle is in the second rotated position.

2. 2. The child carrier of claim 1, further comprising a handle rotation stop configured to move between (1) a blocking position that prevents the handle from rotating from one of the rotation positions to another regardless of the position of the handle rotation lock, and (2) a release position that allows the handle to rotate from one of the rotation positions to another while the handle rotation lock is in the unlocked position.

3. the handle having a first side bar, a second side bar, and a grip bar extending between the first and second side bars; 3. The child carrier of claim 2, wherein the child carrier comprises first and second hubs pivotally coupling the first and second side bars to the first and second sides of the frame or body, respectively.

4. 3. The child carrier of claim 2, wherein the handle rotation stop blocks the handle rotation lock from moving to the unlocked position while the handle rotation stop is in the blocking position.

5. 3. The child carrier of claim 2, wherein movement of the handle from the extended position to the retracted position moves the handle rotation stop to the released position.

6. the handle rotation lock comprises a lock plate; the rotational latch engages the locking plate to lock the handle in each of the plurality of rotational positions; 3. The child carrier of claim 2, wherein the rotation latch disengages from the locking plate to allow the handle to rotate relative to the frame or body.

7. 7. The child carrier of claim 6, wherein the locking plate defines a plurality of grooves or protrusions, and the rotational latch defines at least one protrusion or groove configured to selectively engage with the grooves or protrusions to selectively lock the handle in each of the different rotational positions.

8. 7. The child carrier of claim 6, wherein the rotational latch is rotatably fixed to the handle such that rotation of the handle causes the rotational latch to rotate with the handle relative to the locking plate.

9. 3. The child carrier of claim 2, wherein the handle is configured to rotate relative to the frame or body about a handle pivot, and the handle rotation stop is configured to rotate about the handle pivot between the blocking position and the release position.

10. 10. The child carrier of claim 9, wherein the rotational latch defines a slot that receives the handle pivot such that the handle pivot translates within the slot when the rotational latch transitions between the locked and unlocked positions.

11. 3. The child carrier of claim 2, wherein the handle rotation stop has a first engagement surface configured to engage the handle rotation lock while the handle is in the blocking position, and a second engagement surface configured to be engaged by the handle while the handle is in the retracted position and to move the handle rotation stop to the released position.

12. The child carrier of claim 2 wherein the handle rotation stop is spring biased toward the blocking position.

13. a handle extension lock configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions; 3. The child carrier of claim 2, comprising a handle extension stop configured to move between: 1) a blocking position that prevents movement of the handle from the retracted position to the extended position regardless of the position of the handle extension lock; and 2) a release position that allows movement of the handle from the retracted position to the extended position while the handle extension lock is in the unlocked position of the handle extension lock.

14. 14. The child carrier of claim 13, wherein the handle extension stop is configured to rotate about an axis of rotation between the release position of the handle extension stop and the blocking position of the handle extension stop.

15. 15. The child carrier of claim 14, wherein the pivot point is disposed within a handle hub that rotatably couples the handle to one side of the frame or body.

16. the handle comprises an outer portion and an inner portion nested within the outer portion; 14. The child carrier of claim 13, wherein the handle extension stop comprises a protrusion that extends through an opening in each of the outer and inner portions of the handle while the handle extension stop is in the blocking position of the handle extension stop.

17. 14. The child carrier of claim 13, wherein the handle extension stop is moved between the blocking position and the releasing position of the handle extension stop by rotating the handle.

18. the child carrier includes a handle hub rotatably coupling the handle to one side of the frame or body; the handle extension stop has a first side defining the projection and a second side opposite the first side; 17. The child carrier of claim 16, wherein the handle extension stop is configured such that, as the handle is rotated, the second side of the handle extension stop rides up along the inner surface until the second side is aligned with an opening in the inner surface of the handle hub that receives the handle extension stop, thereby allowing the handle extension stop to be moved to the release position of the handle extension stop.

19. a child carrier configured to removably couple to a child carriage for pushing the child carrier; a frame or body defining an opening configured to support a child therein; a handle coupled to the frame or body by a handle hub, whereby the handle is configured to rotate relative to the frame or body between a plurality of rotational positions and whereby the handle is configured to transition between an extended position and a retracted position relative to the frame or body; a handle extension lock configured to move between a locked position and an unlocked position to selectively lock the handle in the retracted and extended positions; a handle extension stop disposed within the handle hub and configured to move between 1) a blocking position that prevents the handle from moving from the retracted position to the extended position regardless of the position of the handle extension lock, and 2) a release position that allows the handle to move from the retracted position to the extended position while the handle extension lock is in the unlocked position.

20. 20. The child carrier of claim 19, wherein the handle extension stop is configured to be in the release position when the handle is in a first rotational position for pushing the child carrier on the child carriage and to be in the blocking position when the handle is in a second rotational position for transporting the child carrier.

21. 20. The child carrier of claim 19, wherein the handle extension stop is configured to rotate about an axis of rotation between the release position and the blocking position.

22. 22. The child carrier of claim 21, wherein the axle is disposed within the handle hub.

23. the handle comprises an outer portion and an inner portion nested within the outer portion; 20. The child carrier of claim 19, wherein the handle extension stop comprises a protrusion that extends through an opening in each of the outer portion and the inner portion while the handle extension stop is in the blocking position.

24. 20. The child carrier of claim 19, wherein the handle extension stop is moved between the blocked position and the released position by rotating the handle.

25. the handle extension stop has a first side defining a protrusion and a second side opposite the first side; 20. The child carrier of claim 19, wherein the handle extension stop is configured such that when the handle is rotated, the second side of the handle extension stop rides up along the inner surface until the second side is aligned with an opening in the inner surface of the handle hub that receives the handle extension stop, thereby allowing the handle extension stop to be moved to the released position.

26. a handle rotation lock configured to move between an unlocked position and a locked position to selectively lock the handle in each of the rotational positions; 20. The child carrier of claim 19, comprising a handle rotation stop configured to move between: (1) a blocking position that prevents the handle from rotating from one of the rotation positions to another regardless of the position of the handle rotation lock; and (2) a release position that allows the handle to rotate from one of the rotation positions to another while the handle rotation lock is in the unlocked position of the handle rotation lock.

27. 27. The child carrier of claim 26, wherein movement of the handle from the extended position to the retracted position moves the handle rotation stop to the released position.

28. 27. The child carrier of claim 26, wherein the handle rotation lock comprises a rotation latch that translates along an axis of the handle as the handle rotation lock moves between its unlocked and locked positions.

29. 20. The child carrier of claim 19, wherein the handle hub includes a housing and the handle extension stop is disposed entirely within the handle.

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