Compact folding stroller

Abstract

To provide a stroller that provides multiple configurations or seating modes for a child and is foldable and compact. Disclosed herein is a collapsible or foldable stroller frame. The stroller frame is configured to fold to a compact size through a series of connections between the handle portion, front leg portion, and rear leg portion. In one aspect, a basket assembly is also provided that is attached to the stroller frame and configured to fold into a perimeter defined by the folded stroller frame. In another aspect, an adapter assembly is provided that enables a connection or support interface between a carrier and the stroller frame.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to U.S. Provisional Patent Application No. 63 / 032,826, filed June 1, 2020, the disclosure of which is incorporated herein by reference as if set forth in its entirety.

[0002] The present invention relates generally to strollers used to transport babies, toddlers, or children, and more particularly to strollers that can be folded to a compact size while allowing for multiple seating modes. [Background technology]

[0003] Existing strollers generally allow a child seat or carrier to be attached to the stroller frame in multiple configurations and / or are foldable, i.e., can be folded into a smaller size. Providing a folding feature on a stroller is desirable for initial packaging of the stroller and for transporting the stroller by the caregiver. Reducing the overall size of the folded or collapsed stroller is highly desirable to minimize the space required to pack and store the stroller. Typically, foldable strollers do not include all of the features associated with a child seat or stroller frame, or may include small wheel assemblies that are not suitable for rough terrain. Providing multiple configurations for a stroller is also desirable because it allows a caregiver to adapt a single stroller frame to various configurations depending on the child's specific age or needs. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2021 / 105286 [Patent Document 2] International Publication No. 2021 / 105945 Summary of the Invention [Problem to be solved by the invention]

[0005] There is a need for a stroller that provides multiple configurations or seating modes for a child and is foldable and compact. [Means for solving the problem]

[0006] In one aspect, the present disclosure is directed to a collapsible or foldable stroller frame. The stroller frame includes a series of connections, couplings, assemblies, and frame members that provide a compact package when the stroller frame is folded. A basket assembly is also provided that generally cantilevers rearward from the stroller frame when in an upright position. The entire stroller frame assembly, including the basket assembly, can be folded to a compact size.

[0007] In one aspect, a folding stroller frame assembly is provided. The folding stroller frame assembly includes a handle portion, a front leg portion, and a rear leg portion, each pivotally connected to one another by a central frame hub. A seat mount is connected to the central frame hub at a first portion of the seat mount and to a linking connector at a second portion of the seat mount. A seat mount guide link has a first end connected to the front leg portion and a second end connected to the linking connector. A basket guide link has a first end connected to the linking connector.

[0008] Also disclosed herein is an adapter assembly configured to allow a child or infant carrier to be attached to a stroller. The adapter assembly includes a vertical support including a receiving portion configured to receive a portion of the stroller. The vertical support further includes a latching area configured to receive a carrier plunger. A control member is attached to the vertical support and supports the adapter assembly relative to the carrier. The control member prevents outward expansion of the vertical support and ensures that the latching area remains securely engaged with the carrier plunger.

[0009] Additional embodiments are described below and in the claims.

[0010] The foregoing summary, as well as the following detailed description, will be better understood when read in conjunction with the accompanying drawings illustrating preferred embodiments of the present disclosure. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a stroller according to one embodiment. FIG. [Figure 2] 2 is a perspective view of a seat frame assembly configured for use in the stroller of FIG. 1; [Figure 3A] FIG. 2 is a perspective view of the upper frame of the seat frame assembly. [Figure 3B] FIG. 2 is a perspective view of the lower frame of the seat frame assembly. [Figure 3C] FIG. 10 is a perspective view of the tray hub of the seat frame assembly. [Figure 3D] FIG. 1 is an exploded view of the stroller's central hub assembly. [Figure 4A] FIG. 1 is a side view of the stroller assembly with the seat frame assembly in seat mode. [Figure 4B] FIG. 1 is a side view of the stroller assembly with the seat frame assembly in cradle mode. [Figure 5A] 10A-10C are side cross-sectional views showing the seat mount hub in various positions. [Figure 5B]10A-10C are side cross-sectional views showing the seat mount hub in various positions. [Figure 5C] 10A-10C are side cross-sectional views showing the seat mount hub in various positions. [Figure 6] FIG. 10 is a side cross-sectional view of the seat mount hub with the upper frame plunger retracted. [Figure 7A] FIG. 10 is a perspective view of the ramp surface of the latch pin assembly of the seat mount hub. [Figure 7B] FIG. 10 is a perspective view of the ramp surface of the upper seat frame hub. [Figure 8A] FIG. 10 is a perspective view of the interface between the lower frame plunger guide post and the upper seat frame hub in a first position. [Figure 8B] FIG. 10 is a perspective view of the interface between the lower frame plunger guide post and the upper seat frame hub in a second position. [Figure 9A] FIG. 1 is a side view of the seat frame assembly in seat mode. [Figure 9B] FIG. 1 is a side view of the seat frame assembly in a folded mode. [Figure 10] FIG. 1 is a side view of a stroller frame according to one embodiment. [Figure 11A] FIG. 10 is a side view of a central frame hub of a stroller according to one aspect. [Figure 11B] FIG. 11B is a perspective view of the central frame hub of the stroller of FIG. 11A. [Figure 12] FIG. 2 is a side view of the stroller in a folded state. [Figure 13A] FIG. 1 is a perspective view of one embodiment of a center frame hub. [Figure 13B] FIG. 10 is a perspective view of the interface between the seat mount and the basket guide linkage. [Figure 14A] FIG. 10 is a perspective view of an additional embodiment of the center frame hub and seat mount. [Figure 14B] FIG. 10 is a perspective view of an additional embodiment of the center frame hub and seat mount. [Figure 15A] FIG. 10 is a side view of the seat mount, center frame hub, and basket assembly. [Figure 15B] FIG. 10 is an additional perspective view of the seat mount, center frame hub, and basket assembly. [Figure 15C] FIG. 10 is an additional perspective view of the seat mount, center frame hub, and basket assembly. [Figure 16A] FIG. 1 is a side view of the center frame hub of the stroller in an upright position. [Figure 16B] FIG. 10 is a side view of the central frame hub of the stroller in a semi-folded position. [Figure 16C] FIG. 1 is a side view of the center frame hub of the stroller in a fully folded position. [Figure 17A] 1A-1C are perspective views of the central frame hub of the stroller in a series of positions from an upright position to a folded position. [Figure 17B] 1A-1C are perspective views of the central frame hub of the stroller in a series of positions from an upright position to a folded position. [Figure 17C] 1A-1C are perspective views of the central frame hub of the stroller in a series of positions from an upright position to a folded position. [Figure 17D] 1A-1C are perspective views of the central frame hub of the stroller in a series of positions from an upright position to a folded position. [Figure 17E] 1A-1C are perspective views of the central frame hub of the stroller in a series of positions from an upright position to a folded position. [Figure 18A] FIG. 1 is a side view of the stroller assembly in a fully folded position. [Figure 18B] FIG. 1 is a perspective view of the stroller assembly in a fully folded state. [Figure 18C] FIG. 10 is another perspective view of the stroller assembly in a fully folded position. [Figure 19A] 1 is a perspective view of the stroller assembly from a folded position to an upright position. FIG. [Figure 19B] 1 is a perspective view of the stroller assembly from a folded position to an upright position. FIG. [Figure 19C] 1 is a perspective view of the stroller assembly from a folded position to an upright position. FIG. [Figure 19D]1 is a perspective view of the stroller assembly from a folded position to an upright position. FIG. [Figure 20] FIG. 1 is a perspective view of a stroller assembly including an adapter assembly for a carrier. [Figure 21A] FIG. 21 is a perspective view of the adapter assembly of FIG. 20. [Figure 21B] FIG. 10 is a rear view of the adapter assembly engaged with the carrier. [Figure 22A] FIG. 2 is a perspective view of the adapter assembly in an open state. [Figure 22B] FIG. 2 is a perspective view of the adapter assembly in a stored state. [Figure 23A] FIG. 10 is a perspective view of another adapter assembly. [Figure 23B] FIG. 23B is an exploded view of the adapter assembly of FIG. 23A. [Figure 23C] FIG. 23C is a perspective view of the adapter assembly of FIGS. 23A and 23B. DETAILED DESCRIPTION OF THE INVENTION

[0012] In the following description, certain terminology is used for convenience only and is not limiting. The words "front," "rear," "top," and "bottom" designate directions in the drawings to which reference is made. The words "inward" and "outward" refer to directions toward and away from the part referenced in the drawings. "Axial" refers to a direction along the axis of the shaft. Reference to a list of items recited as "at least one of a, b, and c," where a, b, and c represent the listed items, means any one of items a, b, or c, or any combination thereof. This term includes the words specifically mentioned above, derivatives thereof, and words of similar import.

[0013] As shown in FIG. 1 , a foldable stroller assembly 1 (hereinafter referred to as a "stroller") is disclosed that includes a stroller frame 10 configured to accommodate child seat frames 20 of various configurations. As described in more detail herein, both the stroller frame 10 and the child seat frames 20 are foldable. Details regarding certain aspects of the stroller assembly are also disclosed in U.S. Patent Nos. 5,629,997 and 5,729,997, both of which are incorporated by reference in their entireties as if fully set forth herein.

[0014] As shown in FIGS. 2 and 3A-3D , one configuration of the child seat frame 20 may include an upper frame 210, a lower frame 220, a child tray 230, and a seat mount 240, also referred to herein as a seat hub. The upper frame 210 and the lower frame 220 are pivotally connected to the seat mount 240 via an upper seat frame hub 211 and a lower seat frame hub 221, respectively. The child tray 230 is also pivotally connected to the seat mount 240 via the child tray hub 231. The lower frame 220 may include a second latch portion 224 and a lower frame plunger 222. In one aspect, the second latch portion 224 provides an interface between the lower frame 220 and other components, such as the lower seat frame hub 221 and the lower frame plunger 222.

[0015] 4A and 4B, the child seat frame 20 may have a seat mode and a cradle mode. One configuration for attaching the child seat frame 20 to the main stroller frame 10 is in a forward-facing seating position. In another embodiment, the child seat frame 20 may be supported on the stroller frame 10 in a rear-facing seating position. Those skilled in the art will appreciate that additional configurations of the child seat frame 20 relative to the stroller frame 10 are possible.

[0016] 2 and 4A before attachment to the main stroller frame 10, the upper frame 210 may extend upward, specifically diagonally upward and rearward, from the seat mount 240, and the lower frame 220 may extend downward, specifically diagonally downward and forward, from the seat mount 240. In the upright position, the upper frame 210 and the lower frame 220 extend in a straight line passing through the seat mount 240. In the cradle mode shown in FIG. 4B, the upper frame 210 and the lower frame 220 extend horizontally from either side of the seat mount 240. The child seat frame 20 can be converted from the seat mode position to the cradle mode position as shown in FIGS. 4A and 4B.

[0017] 5A-5C, to convert the child seat frame 20 from seat mode to cradle mode, a user can use a cable to engage the recline handle 223 shown in FIG. 2, which can disengage the spring-loaded lower frame plunger 222 from engagement with the seat mount 240. This allows the entire child seat frame 20 to rotate to a horizontal position relative to the seat mount 240, and the spring-loaded lower frame plunger 222 re-engages the seat mount 240, locking the child seat frame 20 in this position. Those skilled in the art will appreciate that other types of recline handles or actuators can be implemented on the child seat frame 20.

[0018] In addition to the recline handle 223, the child seat frame 20 also includes a folding handle 213, shown in FIG. 2, for folding the child seat frame 20 as part of folding the stroller. When engaged, the folding handle 213 retracts the spring-loaded upper frame plunger 212 from its engaged position with the lower seat frame hub 221, as shown in FIG. 6. The upper frame 210 (i.e., the upper seat frame) can then rotate about the seat mount 240 relative to the lower frame 220 (i.e., the lower seat frame). The folding handle 213 can use a cable to retract the spring-loaded upper frame plunger 212. Those skilled in the art will appreciate that other types of folding handles or actuators can be implemented on the child seat frame 20.

[0019] 7A shows the angled surface 251 of the latch pin assembly 250, and FIG. 7B shows the corresponding angled surface 2111 of the upper seat frame hub 211. As the upper frame 210 rotates, the angled surface 2111 of the upper seat frame hub 211 acts against the angled surface 251 of the latch pin assembly 250, forcing the latch pin assembly 250 into the seat mount 240 and separating the latch pin assembly 250 from the child tray hub 231, thereby releasing the child tray 230 so that it can freely pivot about the seat mount 240. Those skilled in the art will recognize based on this disclosure that other configurations or arrangements can be provided for disengaging the latch pin assembly 250 from the child tray hub 231.

[0020] 8A and 8B, a helical control surface 2112 is provided on the upper seat frame hub 211 and is configured to act on the lower frame plunger guide post 2221 to unlock the lower seat frame hub 221 from the seat mount 240 shown in FIG. 3D by acting on the lower frame plunger guide post 2221. This allows the lower frame 220 to rotate about the seat mount 240 to a vertical (i.e., downward) position relative to the seat mount 240. In one aspect, a locked state is provided between the seat mount 240 and the lower seat frame hub 221 such that the lower seat frame hub 221 is rotatably fixed relative to the seat mount 240. In one aspect, an unlocked state is provided between the seat mount 240 and the lower seat frame hub 221 such that the helical control surface 2112 acts on the lower frame plunger guide post 2221 to unlock the lower seat frame hub 221 from the seat mount 240 such that the lower seat frame hub 221 is rotatable relative to the seat mount 240. Further details regarding the locked and unlocked states of this configuration are provided herein.

[0021] The helical control surface 2112 is formed with a tapered or sloped profile that tapers or slopes radially outward from the center of the upper seat frame hub 211 between the circumferential ends of the helical control surface 2112 so that as the upper seat frame hub 211 rotates relative to the seat mount 240, the helical control surface 2112 abuts and drives the lower frame plunger guide post 2221.

[0022] The seat mount 240 includes a recess that may be formed by a first latch portion 241 configured to receive the lower frame plunger guide post 2221 to rotatably secure the seat mount 240 to the lower seat frame hub 221. Although the term first latch portion 241 is used to define a recess on the seat mount 240, other types of slots, pockets, receivers, etc. that are dimensioned to receive at least a portion of the lower frame plunger guide post 2221 may be formed on the seat mount 240.

[0023] The lower frame plunger guide post 2221 is biased toward a locked position in the recess of the seat mount 240 via a spring, in one example. In one aspect, the spring may engage the lower frame plunger 222. Other configurations may be used to bias the lower frame plunger guide post 2221 into the recess of the seat mount 240. The lower frame plunger guide post 2221 is configured to be selectively driven away from the recess of the seat mount 240 so that the lower seat frame hub 221 can rotate relative to the seat mount 240. In one aspect, the lower frame plunger 222 formed with the lower frame plunger guide post 2221 drives the lower frame plunger guide post 2221 toward or away from the recess of the seat mount 240 along the axis of the lower frame 220. The lower frame plunger 222 is rotatably fixed to the lower frame 220, such that rotation of the lower frame 220 also rotates the lower frame plunger 222.

[0024] The upper seat frame hub 211 may be formed with a drive slot (i.e., a slot forming a helical control surface 2112 as shown in FIGS. 8A and 8B), and the lower frame plunger 222 has a lower frame plunger guide post 2221 formed therein that is movably positionable within the drive slot. The drive slot is generally arcuate and may have a particular angular extent, e.g., less than 180°. In one embodiment, the angular extent of the drive slot is at least 120°.

[0025] The lower frame plunger guide post 2221 abuts the helical control surface 2112, and as the upper seat frame hub 211 rotates, the helical control surface 2112 can actuate the lower frame plunger 222 to selectively move the lower frame 220 between a locked state, in which the lower frame 220 is rotatably fixed relative to the seat mount 240, and an unlocked state, in which the lower frame 220 is rotatable relative to the seat mount 240. Based on this configuration, rotation of the upper seat frame hub 211 transitions the lower frame 220 between the locked and unlocked states. In one aspect, forward rotation of the upper seat frame hub 211 (i.e., clockwise rotation as shown in FIGS. 8A and 8B ) of the upper seat frame hub 211 results in an unlocked state between the lower frame 220 and the seat mount 240. Additionally, the spring engaging with the lower frame plunger guide post 2221 can bias the lower frame plunger guide post 2221 toward the locked state such that when the upper seat frame hub 211 rotates in the opposite direction (i.e., counterclockwise as viewed in Figures 8A and 8B), the spring drives the lower frame plunger guide post 2221 into the locked state.

[0026] The spiral control surface 2112 may be configured to unlock the lower frame 220 from the seat mount 240 after the upper seat frame hub 211 is rotated a predetermined angle. One skilled in the art will recognize that the width of the slots forming the spiral control surface 2112 may be uniform. Alternatively, the width of the slots forming the spiral control surface 2112 may be non-uniform. One skilled in the art will recognize that the profile of the slots forming the spiral control surface 2112 may vary.

[0027] As the upper frame 210 extends away from the lower frame 220, the lower frame plunger guide post 2221 is positioned in the wide portion of the drive slot, as shown in FIG. 8A . As the upper frame 210 gradually rotates toward the lower frame 220, the shape of the spiral control surface 2112 gradually reduces or narrows the slot width of the drive slot. As the upper frame 210 approaches the lower frame 220, the rotation of the spiral control surface 2112 gradually moves the lower frame plunger guide post 2221 away from the center of the upper seat frame hub 211. As the upper frame 210 and the lower frame 220 approach each other, the lower frame plunger guide post 2221 is positioned in a position of the drive slot where the slot width is narrow. At this stage, the lower frame plunger guide post 2221 disengages from the first latch portion 241 of the seat mount 240, and the lower seat frame 220 and the upper frame 210 pivot relative to the seat mount 240, allowing them to fold toward each other. Based on this configuration, the lower frame plunger guide post 2221 of the lower frame plunger 222 is selectively displaced or moved to engage or disengage with the first latch portion 241 .

[0028] Those skilled in the art will understand, based on this disclosure, that in addition to the lower frame plunger guide post 2221 and the helical control surface 2112 that can convert rotational motion imparted to one component (i.e., the upper frame 210) into lateral displacement of another component (i.e., the lower frame plunger guide post 2221 of the lower frame plunger 222) so that one or more portions of the child seat frame 20 are locked or unlocked relative to the seat mount 240, other configurations can be used or implemented in the child seat frame 20.

[0029] 9A and 9B show how the upper frame 210, the lower frame 220, and the child tray 230 are each configured to be driven from an extended state (i.e., the seat mode of FIG. 9A) to a folded state (shown in FIG. 9B) by pivoting the upper frame 210, the lower frame 220, and the child tray 230 downwardly from the seat mount 240 so that the upper frame 210, the lower frame 220, and the child tray 230 are positioned approximately parallel to one another in the folded state.

[0030] As shown in Figure 10, in one aspect, a stroller frame 10 is disclosed that generally comprises a handle portion 110, a rear leg portion 120, and a front leg portion 130. The stroller frame 10 is shown in Figure 10 in an in-use (i.e., upright) position, with the handle portion 110 pointing generally upward and the rear leg portion 120 and front leg portion 130 fully extended.

[0031] The handle portion 110 and the front leg portion 130 can be maintained in a straight configuration in use. In other configurations, the handle portion 110 and the front leg portion 130 can be offset from one another. The handle portion 110, the rear leg portion 120, and the front leg portion 130 are each pivotally connected to one another at a central frame hub 140. A seat mount 135 is attached to the central frame hub 140 and extends generally perpendicularly from the central frame hub 140 in a cantilevered manner. The top of the seat mount 135 includes a bayonet 135c configured to engage another element, such as an infant or child carrier or a car seat. In one embodiment, as shown in FIG. 15A , the bayonet 135c is not directly vertically aligned with the rest of the seat mount 135; instead, the bayonet 135c is angularly offset from the rest of the seat mount 135. In one aspect, the bayonet 135c is configured to engage within a receptacle of the seat mount 240 to attach the seat frame 20 to the stroller frame 10.

[0032] 11A and 11B show details of the central frame hub 140. Generally, a series of plates are provided that are attached to at least one of the handle portion 110, the rear leg portion 120, and the front leg portion 130. Specifically, a handle plate 112 is attached to the handle portion 110, a rear leg plate 122 is attached to the rear leg portion 120, and a front leg plate 132 is attached to the front leg portion 130. As shown in FIG. 11A , a pin 112a may be provided to secure the handle plate 112 to the handle portion 110, a pin 122a may be provided to secure the rear leg plate 122 to the rear leg portion 120, and a pin 132a may be provided to secure the front leg plate 132 to the front leg portion 130. Other types of fastening means may be used to secure the plates to their respective portions.

[0033] A frame latch 142 is connected to the rear leg plate 122. In one aspect, the frame latch 142 is pivotally attached to the rear leg plate 122 via a pin 124. A latch surface 142a of the frame latch 142 engages a pin 134 on the front leg plate 132 to lock the stroller frame 10 in the open position. In one embodiment, the pin 134 is integrally formed with the front leg plate 132, although it may be attached to the front leg plate 132 in other ways.

[0034] When the frame latch 142 is rotated so that the latch surface 142a passes and disengages from the pin 134, the handle plate 112 is configured to rotate and pull the nose landing gear plate 132 into the folded position using the linkage 125. The linkage 125 may be secured at a first end to the nose landing gear plate 132 via connection 125a and at a second end to the handle plate 112 via connection 125b.

[0035] A biasing element 145 is disposed around the pin 124 and extends between the rear leg plate 122 and the frame latch 142. An end 146 of the biasing element 145 may include a hook configured to engage within the opening 144 in the central frame hub 140 and the opening in the rear leg plate 122. In one aspect, the biasing element 145, which may include a spring, is configured to bias the frame latch 142 toward the locked position (i.e., in a clockwise direction in FIG. 11B ).

[0036] As shown in FIG. 12, the handle portion 110, rear leg portion 120, and front leg portion 130 are configured to fold in a generally parallel configuration relative to one another. As shown in FIG. 12, the overall width (W) of the folded stroller frame 10 is between 9.0 inches and 12.0 inches. In one embodiment, the overall width (W) is between 10.0 inches and 11.5 inches. In a preferred embodiment, the overall width (W) is 10.75 inches. In one embodiment, the overall height (H) of the folded stroller frame 10 is between 25.0 inches and 30.0 inches. In another embodiment, the overall height (H) of the folded stroller frame is between 27.0 inches and 28.5 inches. In a preferred embodiment, the overall height (H) is 27.5 inches.

[0037] FIG. 13A provides additional details regarding the central frame hub 140. In one embodiment, the central frame hub 140 may include a central portion defining an upper track 136. As also shown in FIG. 13A, a lower track 127 is provided defined on the rear leg portion 120. Those skilled in the art will appreciate that in another embodiment, the lower track 127 may be formed on a lower portion of the central frame hub 140. The lower track 127 preferably includes a first linear track portion 127a formed as a straight elongated portion and a second curved track portion 127b. In one embodiment, the lower track 127 has a generally "J" shaped profile. As shown in FIG. 13A, the elongated portion 127a of the lower track 127 has a longitudinal axis (A1), and the upper track 136 has a longitudinal axis (A2). In one embodiment, the longitudinal axis (A1) of the elongated portion 127a of the lower track 127 is not parallel to the longitudinal axis (A2) of the upper track 136. In one embodiment, the longitudinal axis (A2) of the upper track 136 is offset from the longitudinal axis (A1) of the elongated portion 127a of the lower track 127 by at least 5 to 40 degrees. In another embodiment, the longitudinal axis (A2) of the upper track 136 is offset from the longitudinal axis (A1) of the elongated portion 127a of the lower track 127 by 15 to 25 degrees. In one embodiment, the curved track portion 127b has a longitudinal axis (A3) that is angled relative to the longitudinal axis (A1) of the elongated portion 127a of the lower track 127. The longitudinal axis (A3) can be angled from 45 to 85 degrees relative to the longitudinal axis (A1). In one embodiment, the longitudinal axis (A3) is angled at between 55 and 75 degrees relative to the longitudinal axis (A1).

[0038] 13B shows additional details regarding the interface or connection provided by lower track 127. An interlocking connector 150 is provided, which will be described in more detail herein, that connects or couples lower portion 135b of seat mount 135 to seat mount guide linkage 148 and optionally basket guide linkage 165. Interlocking connector 150 may include a pin 151 that extends through lower portion 135b of seat mount 135, second end 148b of seat mount guide linkage 148, and first end 165a of basket guide linkage 165.

[0039] During folding of the stroller frame 10, rotation of the front leg portion 130 is guided relative to the rear leg portion 120 via a seat mount guide linkage 148 that is pivotally attached to the front leg portion 130 at a first end 148a and connected to the lower portion 135b of the seat mount 135 at a second end 148b. In one embodiment, the seat mount guide linkage 148 comprises a single rigid linkage that extends from the front leg portion 130 to the rear leg portion 120. The second end 148b of the seat mount guide linkage 148 is connected to the rear leg portion 120 by the lower track 127.

[0040] In use, at least a portion of interlocking connector 150, which is connected to lower portion 135b of seat mount 135, second end 148b of seat mount guide linkage 148, and first end 165a of basket guide linkage 165, terminates in or engages curved track portion 127b. In one embodiment, interlocking connector 150 includes a track-following component that is guided or follows along lower track 127. Lower track 127 can be configured as an internal track having a recess defined therein that is sized to receive a portion of interlocking connector 150. For example, interlocking connector 150 can include a protrusion configured to be received within the recess of lower track 127. Those skilled in the art will recognize that other configurations for interlocking connector 150 defining a recess configured to receive the protrusion formed by lower track 127 can be used. In this configuration, lower track 127 can be an external track, i.e., a T-track, and the recess defined by interlocking connector 150 follows along the external track defined by lower track 127. As one of ordinary skill in the art will recognize based on this disclosure, various alternative configurations can be used to provide a connection between interlocking connector 150 and lower track 127. In one embodiment, interlocking connector 150 is formed separately from the pins or other connecting elements that couple seat mount guide linkage 148, seat mount 135, and basket guide linkage 165 together.

[0041] During unfolding of the stroller frame, the interlocking connector 150 is first driven upward, away from the end of the curved track section 127b, and then driven linearly downward along the elongated section 127a of the lower track 127. The downward curvature of the curved section 127b (i.e., toward the ground or support surface) ensures that the second end 148b of the seat mount guide linkage 148 remains in a stationary position when the stroller is unfolded and moved to its in-use position, thereby maintaining the front and rear leg sections 130, 120 in the proper orientation relative to one another. In addition to controlling the rotation and movement of the seat mount 135 during folding and unfolding, the lower track 127 also provides vertical support for the seat mount 135 when in its in-use position due to the downward curvature of the curved section 127b.

[0042] As shown in FIGS. 14B and 15B , the first or intermediate portion 135a of the seat mount 135 is connected to the upper track 136 by a pivot guide 163. In one embodiment, the pivot guide 163 includes a protrusion configured to engage within the upper track 136. The upper track 136 may be formed with a slotted profile, and the protrusion on the pivot guide 163 may include an enlarged head that slides within the upper track 136. The pivot guide 163 thereby provides both rotational support for the seat mount 135 and linear guide support along the upper track 136. Those skilled in the art will appreciate that alternative configurations can be provided in which the upper track 136 is an outer track and defines a protrusion, and the pivot guide 163 defines a recess dimensioned to receive the outer track of the upper track 136. Various configurations and engagement profiles can be used to couple or otherwise connect the pivot guide 163 to the upper track 136.

[0043] As shown in Figures 16A-16C and 17A-17E, during folding of the stroller frame 10, when the stroller frame 10 is folded from an upright position, the upper track 136 and the lower track 127 work together to ensure that the longitudinal axis of the bayonet 135c remains substantially upright or vertical during the folding operation. Those skilled in the art will appreciate that if the entire stroller frame 10 is tilted or otherwise not upright during folding, the bayonet 135c may not be in an upright position during folding. In one aspect, the longitudinal axis of the bayonet 135c extends within the gap or space defined between the handle portion 110 and the front leg portion 130 throughout the folding operation. In one aspect, the longitudinal axis of the bayonet 135c does not pivot or rotate more than 45 degrees during folding of the stroller frame 10. The longitudinal axis of the bayonet 135c can be configured not to pivot or rotate more than 25 degrees during folding of the stroller frame 10. In one aspect, during folding of the stroller frame 10, the bayonet 135c is driven primarily in a single direction (i.e., from the extended state to the stowed state), although slight or accidental tilting or pivoting may occur.

[0044] Based on the folding configuration, the folded child seat frame 20 remains within the folding boundaries of the stroller frame 10 to minimize the folded size of the stroller frame assembly. This is also shown in FIGS. 18A and 18B. The child seat frame 20 is configured to fold within the stroller frame 10 (i.e., between the handle portion 110 and the front leg portion 130), as shown in FIGS. 18A and 18B. This configuration results in a more compact shape compared to other stroller assemblies in which the child seat frame is positioned outside the stroller frame 10. The retractable bayonet 135c also assists in the ability of the child seat frame 20 to be pulled within the folded perimeter, contour, or envelope of the stroller frame 10.

[0045] A lower portion 135b of the seat mount 135 is pivotally connected to a first end 165a of a basket guide linkage 165. An opposite second end 165b of the basket guide linkage 165 is connected to a basket frame 166. In one aspect, a basket assembly can be made up of the basket guide linkage 165, the basket frame 166, and the basket frame linkage 164.

[0046] In one embodiment, the connection of the second end 165b of the basket guide linkage 165 to the basket frame 166 comprises a sliding connection. The sliding connection may include a guide slot 167 formed in the basket guide linkage 165 and a guide 169 attached to the basket frame 166. The basket frame linkage 164 extends from the rear leg portion 120 toward the front leg portion 130, as shown in FIGS. 14A, 16B, and 16C. The basket frame linkage 164 is attached to the rear leg portion 120 at a first end 164a and positioned adjacent to the lower track 127. The basket frame linkage 164 can be fixed to a portion of the lower track 127. In one embodiment, the basket frame linkage 164 is fixed in position at an acute angle relative to the lower track 127. The second end 164b of the basket frame linkage 164 is attached to the first end 166a of the basket frame 166. In one aspect, the basket frame linkage 164 provides a pivotal connection between the rear leg section 120 and the basket frame 166 .

[0047] Figures 16A-16C show one embodiment of folding the stroller frame, and Figures 17A-17E show additional embodiments of folding the stroller frame. Folding of the stroller assembly can generally be initiated by a release or folding mechanism, such as the configurations disclosed in Figures 11A and 11B. Once the latch or other mechanism is released, the handle portion 110 can begin to fold downward and the front leg portion 130 can rotate toward the rear leg portion 120.

[0048] During frame folding, the guide slots 167 in the basket guide linkages 165 allow the basket frame 166 to rotate downward to fold within the folded frame boundary between the front leg portion 130 and the handle portion 110. As shown in FIGS. 16A-16C and 17A-17E, the basket frame linkages 164, basket guide linkages 165, and basket frame 166 cooperate to control the folding and unfolding of the basket assembly. As shown in FIG. 17A, in the unfolded state, the basket frame linkages 164 may be parallel to the basket frame 166. In the folded state, as shown in FIGS. 17E and 18C, the basket guide linkages 165, basket frame 166, and basket frame linkages 164 are angled relative to one another. In one aspect, the basket guide linkages 165, basket frame 166, and basket frame linkages 164 form a triangle in the folded state.

[0049] 17A and 17B, as the frame begins to fold (i.e., handle portion 110 folds downward toward rear leg portion 120), interlocking connector 150 is first moved upward along lower track 127, away from the end of curved track portion 127b, and out of curved track portion 127b. Interlocking connector 150 then begins to move downward along elongated portion 127a.

[0050] As the front leg section 130 and the rear leg section 120 are driven toward each other during folding, the front leg section 130 drives the seat mount guide linkage 148 upward and out of the curved track portion 127b of the lower track 127. In one embodiment, the inner linkage 125 of the center frame hub 140 (as shown in FIG. 11A ) guides the front leg section 130 toward the rear leg section 120 during folding. Other embodiments of the connection shown in FIG. 11A may also be used to control the folding operation. As shown in FIG. 17C , as the linkage connector 150 continues to be driven downward on the lower track 127 and the handle section 110 continues to fold downward, the basket frame 166 folds downward. As the folding operation continues, as shown in FIG. 17D , the guide 169 moves within the guide slot 167 as the basket frame 166 is driven further downward, folding toward the front leg section 130 along with the rear leg section 120. Finally, the stroller is folded as shown in Figure 17E, which shows that the basket guide linkage 165 and basket frame 166 essentially cross each other in a cross or "X" configuration. As shown in Figure 17E, the guide 169 has moved to the opposite end of the guide slot 167 compared to when the stroller is in the upright or unfolded position.

[0051] When the stroller frame 10 is opened from the folded position to the unfolded position, the rear leg sections 120 and the front leg sections 130 are driven a predetermined distance away from each other before the basket frame 166 is driven to its upright position. The delay in driving the basket frame 166 upward during unfolding of the stroller frame 10 is due to the orientation and connection provided by the basket frame linkages 164, guide slots 167, and guides 169. As shown in Figures 19A-19D, upon unfolding the frame, the basket guide linkages 165 pivot the basket frame 166 to a raised, relatively horizontal position, maximizing the storage capacity of the basket.

[0052] As shown in FIG. 17E , in one embodiment, the seat mount 135 is disposed within the contour or envelope of the central frame hub 140 in the folded state. The interlocking connector 150 moves the bayonet 135c between an extended position corresponding to the unfolded or upright position of the stroller frame 10 and a retracted position corresponding to the folded state of the stroller frame 10. In one example, the bayonet 135c is configured to extend further outward from the central frame hub 140 in the extended position compared to the retracted position. The bayonet 135c can extend to a first height (i.e., an extended height) defined above the central frame hub 140 when the stroller frame assembly 10 is unfolded. The bayonet 135c can extend to a second height (i.e., a retracted height) that is lower than the first height when the stroller frame assembly 10 is folded. In one embodiment, the second height can correspond to a position where at least a portion of the bayonet 135c is above the central frame hub 140. In another embodiment, the bayonet 135c is positioned entirely vertically below the upper or top surface 140a of the central frame hub 140 in the retracted position. Those skilled in the art will appreciate that other configurations of the bayonet 135c can be provided and that the bayonet 135c can be configured to assume various positions relative to the central frame hub 140, or any other component of the frame 10, in the extended and retracted positions.

[0053] In one aspect, a method of folding the stroller frame 10 from an upright position to a folded position is also provided. The method includes folding the handle portion 110 downward such that the handle portion 110 drives the front leg portion 130 toward the rear leg portion 120. The method also includes driving the interlocking connector 150 along the track 127 defined on the rear leg portion 120 from the curved track portion 127b to the straight track portion 127a. The interlocking connector 150 is commonly attached or connected to the seat mount 135 defining the bayonet 135c, the seat mount guide linkage 148 connected to the front leg portion 130, and the basket guide linkage 165. The method may include any one or more other features disclosed herein as described with respect to the stroller frame 10. Any one or more functions of the components described herein may be used in conjunction with the method of folding the stroller frame 10.

[0054] In another aspect, as shown in Figures 20, 21A, 21B, 22A, and 22B, an adapter assembly 170 is provided that is configured to engage with a child or infant carrier 180 and that can be attached to a seat mount 135.

[0055] 21A and 21B, includes a vertical support 172, a control member 173 including a bearing surface 174, and at least one latching area 176. In one embodiment, the control member 173 is a pivoting control member due to its connection to the vertical support 172 being provided through a pivoting connection 175 between the vertical support 172 and the control member 173. As shown in FIG. 21B, the pivoting connection 175 may include a pin. In one embodiment, the control member 173 has a C-shaped profile.

[0056] Vertical support 172 is configured to support carrier 180 vertically and / or laterally. Vertical support 172 includes a base 177 having a first receiving portion 177a on an upper side and a second receiving portion 177b on a lower side. First receiving portion 177a, also referred to herein as the carrier receiving portion, is configured to support or receive a portion 184 of carrier 180, such as the hub of a carry handle of carrier 180. In one embodiment, first receiving portion 177a may be formed as a curved surface or a pocket.

[0057] The second receiving portion 177b, also referred to herein as the stroller receiving portion, is configured to receive a portion of the stroller frame, such as the bayonet 135c of the seat mount 135. In one aspect, the second receiving portion 177b may be formed as an elongated slot having an enclosed lateral perimeter. To vertically support the underside of the carrier 180, the adapter assembly 170 may include at least one of (i) the first receiving portion 177a and (ii) a support surface 173a defined on the control member 173.

[0058] The adapter assembly 170 is provided with a release button 181 that is configured to release the adapter assembly 170 from the stroller frame 10. In one aspect, the release button 181 is configured to disengage the adapter assembly 170 from the bayonet 135c of the stroller frame 10.

[0059] Latching area 176 is configured to receive at least one plunger of carrier 180 to secure carrier 180 to vertical support 172 and prevent unintentional removal of carrier 180 from adapter assembly 170. In one aspect, latching area 176 is formed as a receptacle or pocket. Those skilled in the art will appreciate that other configurations for latching area 176 can be used.

[0060] The bearing surface 174 is configured to interact with a corresponding surface 182 of the carrier 180 to ensure that the latch area 176 and the carrier plunger remain properly engaged while the carrier 180 is supported on the stroller frame 10. Thus, the control member 173 and the bearing surface 174 function, in one aspect, as a locking assembly. The bearing surface 174 also ensures that the adapter assembly 170 is securely fastened, particularly in the lateral direction (i.e., from left to right in FIG. 21B ). After the control member 173 is lowered or deployed, the rocker rail of the carrier 180 is positioned into a pocket or space defined between the bearing surface 174 and the vertical support 172.

[0061] When the adapter assembly 170 is removed from the stroller frame 10, the control members 173 are configured to rotate inward and engage receptacles 179 on the vertical supports 172. This folded configuration of the control members 173' is shown in FIG. 22B and reduces the size of the adapter assembly 170 for easier storage in the stroller. In one aspect, the control members 173 include elongated slots 178 configured to receive the pivot connections 175, which slide along the elongated slots 178 as the control members 173 are rotated from the use position (i.e., FIG. 22A) to the folded position (i.e., FIG. 22B).

[0062] 23A-23C illustrate another embodiment of an adapter assembly 270. As shown in FIGS. 23A-23C, the adapter assembly 270 includes at least one vertical support 272a, 272b. The features of the vertical supports 272a, 272b are otherwise identical to the vertical support 172, unless otherwise noted herein. The adapter assembly 270 also includes control members 273a, 273b, which are pivotally attached to the bottom of a respective one of the vertical supports 272a, 272b. The control members 273a, 273b can be considered pivotal control members based on their pivotal connection to adjacent components or elements. In one aspect, the control members 273a, 273b are each connected to a central connector link 275. The control members 273a, 273b may include bearing surfaces 283a, 283b configured to engage or bear against the bottom surfaces of the rocker rails of the carrier 180. The central connector linkage 275 has a first end 275a pivotally connected to a first one of the control members 273a and a second end pivotally connected to a second one of the control members 273b. The first control member 273a includes a first end 274a configured to be pivotally attached to the first end 275a of the central connector linkage 275. The second control member 273b includes a first end 274b configured to be pivotally attached to the second end 275b of the central connector linkage 275. In one aspect, the first ends 274a, 274b of the control members 273a, 273b are angled. Similarly, the first and second ends 275a, 275b of the central connector link 275 may also be angled.

[0063] The second end 276a of the first control member 273a is pivotally attached to the vertical support 272a. The second end 276b of the second control member 273b is pivotally attached to the vertical support 272b. In one embodiment, the second ends 276a, 276b of the control members 273a, 273b are straight or flat.

[0064] Based on the shape and interaction of the control members 273a, 273b and the central connector link 275, the control members 273a, 273b can fold downward relative to the vertical supports 272a, 272b, after which the control members 273a, 273b can hinge or fold relative to the central connector link 275. In the deployed orientation, the vertical supports 272a, 272b are positioned at a predetermined distance relative to one another such that their respective latching regions align with plungers on the carrier. The predetermined distance is limited based on the length or shape of the control members 273a, 273b and the central connector link 275. The connections between the control members 273a, 273b and the vertical supports 272a, 272b and the connections between the control members 273a, 273b and the central connector link 275 provide multi-axis folding movement. Based on this configuration, the control members 273a, 273b and central connector linkage 275 rigidly attach the vertical supports 272a, 272b to the carrier.

[0065] Both adapter assemblies 170, 270 include features or components that prevent the vertical supports 172, 272a, 272b from splaying outward. These features help prevent the plunger of the carrier 180 from inadvertently disengaging from the vertical supports 172, 272a, 272b. In FIGS. 21A and 21B, the bearing surface 174 performs this function by engaging the inside of one of the carrier rocker rails. In FIGS. 23A-23C, the connection or interface between the vertical supports 272a, 272b, the control members 273a, 273b, and the central connector linkage 275 performs this function by limiting the distance or width between the two vertical supports 272a, 272b. Generally, the control member is configured to maintain the latching region in alignment with the carrier plunger and prevent the vertical supports from splaying outward.

[0066] In another embodiment, the control members 273a, 273b can be replaced with flexible connectors, such as straps, bands, or tethers, attached to the vertical supports 272a, 272b to limit the distance the vertical supports 272a, 272b can be spaced apart. In one aspect, the flexible connectors are inelastic. In another embodiment, the control members 273a, 273b and the central connector linkage 275 can be replaced with a single, integral, rigid structure. Limiting the distance between the vertical supports prevents inadvertent outward spreading of the vertical supports, which could otherwise cause them to disengage from the carrier plunger.

[0067] In another aspect, a method of using the adapter assembly 170, 270 is also disclosed herein. The method may include engaging the adapter assembly 170, 270 with a car seat or carrier to provide an interface with a stroller frame. The method may also include folding the adapter assembly 170, 270 to a more compact storage or folded state than the use state. The method may also include additional steps that implement the functionality of any one or more of the components of the adapter assembly 170, 270.

[0068] While the present embodiments have been described in detail above, it should be understood, and will be apparent to those skilled in the art, that many physical modifications, some of which are illustrated in the detailed description of this disclosure, can be made without changing the inventive concepts and principles embodied herein.

[0069] It should also be understood that many embodiments are possible that incorporate only portions of the preferred embodiment, and as such do not change the inventive concepts and principles embodied therein.

[0070] The present embodiments and any configurations are therefore to be considered in all respects as illustrative and / or explanatory and not restrictive, the scope of the present disclosure being indicated by the appended claims rather than the foregoing description, and all alternative embodiments and modifications thereto that come within the meaning and range of equivalence of said claims are accordingly embraced therein. [Additional note 1] a handle portion, a front leg portion, and a rear leg portion, each pivotally connected to one another by a central frame hub; a seat mount connected to the central frame hub at a first portion of the seat mount and connected to an interlocking connector at a second portion of the seat mount; a seat mount guide link having a first end connected to the front leg section and a second end connected to the interlocking connector; A folding stroller frame assembly comprising: [Additional note 2] The folding stroller frame assembly described in Appendix 1 further includes a basket guide connection portion having a first end connected to the connecting connector, and a basket frame connection portion including a first end connected to the rear leg portion and a second end connected to the basket frame, wherein the basket guide connection portion includes a guide slot and a guide connected to the basket frame. [Additional note 3] 3. A foldable stroller frame assembly as described in claim 2, wherein the guide moves from a first end of the guide slot to a second end opposite the guide slot when the foldable stroller frame assembly is folded. [Additional note 4] 3. The folding stroller frame assembly according to claim 2, wherein the basket frame and the basket guide connector intersect with each other when the folding stroller frame assembly is folded. [Additional note 5] 3. The foldable stroller frame assembly of claim 2, wherein the basket guide connector, the basket frame, and the basket frame connector are each angled relative to one another when the foldable stroller frame assembly is folded. [Additional note 6] an upper portion of the seat mount including a bayonet configured to be in an extended position when the folding stroller frame assembly is unfolded and to be in a stowed position when the folding stroller frame assembly is folded; 2. The foldable stroller frame assembly of claim 1, wherein the bayonet extends to a first height above the central frame hub in the extended position, and the bayonet extends to a second height lower than the first height in the stored position. [Additional note 7] 7. The foldable stroller frame assembly of claim 6, wherein the bayonet is positioned vertically below the upper surface of the central frame hub when in the stored position. [Additional note 8] 7. The folding stroller frame assembly of claim 6, wherein the bayonet is offset from the first and second portions of the seat mount. [Additional note 9] 7. The foldable stroller frame assembly of claim 6, further comprising a foldable child seat frame configured to be supported by the bayonet, the foldable child seat frame being positioned within an outer periphery defined by the foldable stroller frame assembly when both the foldable child seat frame and the foldable stroller frame assembly are folded. [Additional Note 10] 2. The foldable stroller frame assembly of claim 1, wherein the first portion of the seat mount is connected to the central frame hub via an upper track defined on the central frame hub. [Additional Note 11] Item 1. The folding stroller frame assembly, wherein the rear leg portion defines a lower track, the lower track configured to receive a portion of the interlocking connector. [Additional Note 12] Item 12. The folding stroller frame assembly of claim 11, wherein the lower track is formed of a first straight track portion and a second curved track portion formed at an end of the first straight track portion. [Additional Note 13] Item 13. A folding stroller frame assembly according to item 12, wherein the second curved track section is angled at least 45 to 85 degrees relative to the first straight track section. [Additional Note 14] the first portion of the seat mount is connected to the central frame hub via an upper track defined on the central frame hub; a lower track defined in the rear leg portion, the lower track configured to receive a portion of the interlocking connector; 2. The folding stroller frame assembly of claim 1, wherein the longitudinal axis (A1) of the lower track is angled relative to the longitudinal axis (A2) of the upper track. [Additional Note 15] 1. An adapter assembly configured to enable a child or infant carrier to be attached to a stroller frame, said adapter assembly comprising: at least one vertical support including a stroller receiving portion configured to receive a portion of the stroller and a latching area configured to receive a carrier plunger; at least one control member attached to at least one of the vertical supports, the at least one control member configured to maintain the latching region in alignment with a carrier plunger and prevent spreading of the at least one vertical support while supporting the carrier; and An adapter assembly comprising: [Additional Note 16] 16. The adapter assembly of claim 15, wherein at least one of the vertical supports further includes a carrier receiving portion configured to vertically support a portion of the carrier. [Additional Note 17] 16. The adapter assembly of claim 15, wherein at least one of the control members defines a bearing surface configured to engage a surface of the carrier. [Additional Note 18] 16. The adapter assembly of claim 15, wherein at least one of the control members has a C-shaped profile and a pivotal connection with at least one of the vertical supports. [Additional Note 19] 18. The adapter assembly of claim 17, wherein at least one of the vertical supports defines a receiving portion dimensioned to receive the bearing surface of at least one of the pivot members in the folded state. [Additional Note 20] The adapter assembly of claim 15, wherein at least one of the control members includes a first control member and a second control member, and the adapter assembly further includes a central connector link pivotally connected to both the first control member and the second control member. [Additional Note 21] An adapter assembly as described in claim 20, wherein an end of the central connector link has an angled profile, and each end of the first control member and the second control member pivotally connected to the end of the central connector link also has an angled profile. [Additional note 22] 16. The adapter assembly of claim 15, wherein the at least one vertical support includes a first vertical support and a second vertical support, and the at least one control member is configured to limit the distance between the first vertical support and the second vertical support. [Additional note 23] 1. A method of folding a stroller frame from an upright position to a folded position, comprising: folding the handle portion downwardly so that the handle portion drives the front leg portion toward the rear leg portion; driving an interlocking connector along a track from a curved track section to a straight track section, the track defined in the rear leg section, the interlocking connector connected to a seat mount defining a bayonet, a seat mount guide linkage connected to the front leg section, and a basket guide linkage; A method comprising: [Explanation of symbols]

[0071] 1. Folding stroller assembly 10 Stroller Frame 20 Child seat frame 110 Handle part 112 Handle plate 112a pin 120 Rear leg part 122 Rear leg plate 122a pin 125 Connection part 125a, 125b connection 127 Lower orbit 127a First straight track section, elongated section 127b Second curved track section 130 Front leg part 132 Nose landing gear plate 132a pin 134 pins 135 Seat Mount 135a middle part 135b lower part 135c bayonet 136 Upper orbit 140 central frame hub 142 Frame Latch 142a Latch surface 144 Opening 145 energizing element 146 End 148 Seat mount guide connection 148a first end 148b second end 150 Interlocking Connector 151 pins 163 Pivoting guide 164 Basket frame connection part 164a, 165a, 166a, 274a, 274b, 275a First end 164b, 165b, 275b second end 165 Basket guide connection part 166 Basket Frame 167 Guide slot 169 Guide 170, 270 adapter assembly 172, 272a, 272b vertical supports 173, 173', 273a, 273b control members 173a Support surface 174 Bearing surface 175 Pivot connection 176 Latch Area 177 Base 177a First Reception Section 177b Second Reception Section 178 Slots 179 Acceptance Department 180 Career 181 Release button 182 sides 184 parts 210 Upper Frame 211 Upper seat frame hub 212 Upper frame plunger 213 Folding handle 220 Lower Frame 221 Lower seat frame hub 222 Lower Frame Plunger 223 Reclining handle 224 Second latch part 230 Child Tray 231 Child Tray Hub 240 Seat Mount 241 First latch part 250 Latch pin assembly 251 Slope 275 Central connector joint 276a Second end 283a, 283b bearing surface 2111 Slope 2112 Spiral Control Surface 2221 Lower frame plunger guide post A1, A2, A3 longitudinal axes

Claims

1. a handle portion, a front leg portion, and a rear leg portion, each pivotally connected to one another by a central frame hub; a seat mount connected to the central frame hub at a first portion of the seat mount and connected to an interlocking connector at a second portion of the seat mount; a seat mount guide link having a first end connected to the front leg section and a second end connected to the interlocking connector; Equipped with The interlocking connector includes a pin extending through the seat mount and the seat mount guide connection.

2. 2. The folding stroller frame assembly of claim 1, further comprising: a basket guide connection portion having a first end connected to the connecting connector; and a basket frame connection portion including a first end connected to the rear leg portion and a second end connected to the basket frame, wherein the basket guide connection portion includes a guide slot and a guide connected to the basket frame.

3. 3. The folding stroller frame assembly of claim 2, wherein the guide moves from a first end of the guide slot to an opposite second end of the guide slot when the folding stroller frame assembly is folded.

4. 3. The folding stroller frame assembly of claim 2, wherein the basket frame and the basket guide connector intersect with each other when the folding stroller frame assembly is folded.

5. 3. The folding stroller frame assembly of claim 2, wherein the basket guide connector, the basket frame, and the basket frame connector are each angled relative to one another when the folding stroller frame assembly is folded.

6. an upper portion of the seat mount including a bayonet configured to be in an extended position when the folding stroller frame assembly is unfolded and to be in a stowed position when the folding stroller frame assembly is folded; 2. The folding stroller frame assembly of claim 1, wherein the bayonet extends to a first height above the central frame hub in the extended position, and the bayonet extends to a second height less than the first height in the stowed position.

7. 7. The folding stroller frame assembly of claim 6, wherein the bayonet is disposed vertically below an upper surface of the central frame hub when in the stowed position.

8. 7. The folding stroller frame assembly of claim 6, wherein the bayonet is offset from the first and second portions of the seat mount.

9. 7. The folding stroller frame assembly of claim 6, further comprising a folding child seat frame configured to be supported by the bayonet, the folding child seat frame being positioned within an outer periphery defined by the folding stroller frame assembly when both the folding child seat frame and the folding stroller frame assembly are folded.

10. 2. The folding stroller frame assembly of claim 1, wherein the first portion of the seat mount is connected to the central frame hub via an upper track defined on the central frame hub.

11. 2. The folding stroller frame assembly of claim 1, wherein the rear leg portions define a lower track, the lower track configured to receive a portion of the interlocking connector.

12. 12. The folding stroller frame assembly of claim 11, wherein the lower track is formed of a first straight track section and a second curved track section formed at an end of the first straight track section.

13. 13. The folding stroller frame assembly of claim 12, wherein the second curved track section is angled at least 45 to 85 degrees relative to the first straight track section.

14. a lower track defined in the rear leg portion, the lower track configured to receive a portion of the interlocking connector; 11. The foldable stroller frame assembly of claim 10, wherein the longitudinal axis (A1) of the lower track is angled relative to the longitudinal axis (A2) of the upper track.

Images