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A stroller fold joint has first and second joint parts. The first part has a hosel coupled to a hub body with a circumferential surface and a pivot axis. The second part has a connector coupled to two plates. The hub body is between the plates and the two joint parts pivot about the pivot axis betwe

A stroller fold joint has first and second joint parts. The first part has a hosel coupled to a hub body with a circumferential surface and a pivot axis. The second part has a connector coupled to two plates. The hub body is between the plates and the two joint parts pivot about the pivot axis between a folded and an unfolded orientation. A tunnel through the hub body is perpendicular to the pivot axis. A shuttle slides within the tunnel and has latch end and an actuator end. The latch end is adjacent the hub body's circumferential surface at one tunnel end and the actuator end extends into the hosel. The shuttle is not exposed and is covered when the fold joint is in the folded or unfolded orientations and when moving therebetween.

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1. A stroller fold joint comprising: a first joint part with a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body;a second joint part with two plates having confronting surfaces spaced apart by a gap therebetween, the hub body captur

1. A stroller fold joint comprising: a first joint part with a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body;a second joint part with two plates having confronting surfaces spaced apart by a gap therebetween, the hub body captured in the gap between the two plates, the first and second joint parts pivotable relative to one another about the pivot axis between a folded orientation and an unfolded orientation;cam surfaces defined on the confronting surfaces of the two plates;a latch slot defined on the confronting surfaces of the two plates adjacent the cam surfaces;a tunnel along and through the hub body perpendicular to the pivot axis, the tunnel bisecting the hub body and being aligned with the pivot axis; anda shuttle slidable within the tunnel and having a latch end and an actuator end, the shuttle biased to a latched position with the latch end captured in the latch slot retaining the fold joint in the unfolded orientation,wherein moving the shuttle to a released position withdraws the latch end from the latch slot permitting relative rotation of the first and second joint parts from the unfolded orientation to the folded orientation. 2. A stroller fold joint according to claim 1, wherein, when the fold joint is moved from the unfolded orientation toward the folded orientation, the latch end of the shuttle bears against the cam surfaces. 3. A stroller fold joint according to claim 1, wherein, when the fold joint moves from the unfolded orientation to the folded orientation, the cam surfaces guide the latch end of the shuttle back to the latched position. 4. A stroller fold joint according to claim 3, wherein, when the fold joint is moved from the folded orientation to the unfolded orientation, the latch end is guided by the cam surfaces back to the released position when adjacent the latch slot. 5. A stroller fold joint according to claim 1, wherein, when the fold joint is moved from the folded orientation to the unfolded orientation, the latch end clears the cam surfaces and aligns with the latch slot. 6. A stroller fold joint according to claim 5, wherein a spring biases the shuttle toward the latched position and when the latch end clears the cam surfaces the spring fires the shuttle into the latch slot and to the latched position. 7. A stroller fold joint according to claim 1, wherein the actuator end is connected to a release cable. 8. A stroller fold joint according to claim 1, wherein the shuttle has an elongate body and a first slot formed therethrough, and wherein a pivot pin through the hub body and two plates defines the pivot axis and passes through the first slot. 9. A stroller fold joint according to claim 1, wherein one end of the tunnel is aligned with a hosel bore of a hosel on the first joint part and the actuator end of the shuttle projects from the hub body into the hosel bore. 10. A stroller fold joint according to claim 9, wherein the other end of the tunnel opens to the circumferential surface of the hub body opposite the hosel. 11. A stroller fold joint according to claim 1, wherein the circumferential surface is substantially closed, other than where ends of the tunnel open thereto so that the circumferential surface is exposed as the fold joint is moved between the folded and unfolded orientations. 12. A stroller fold joint according to claim 1, wherein one end of the tunnel is aligned with a hosel bore of a hosel on the first joint part and the other end of the tunnel opens to the circumferential surface of the hub body opposite the hosel, and wherein a bore cover is secured to the hub body closing off the other end of the tunnel. 13. A stroller fold joint comprising: a first joint part with a frame connection hosel coupled to a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body;a second joint part with a frame connector coupled to two plates having a gap between confronting spaced apart surfaces of the two plates, the hub body sandwiched between the two plates and the first and second joint parts pivotable about the pivot axis relative to one another between a folded orientation and an unfolded orientation;a tunnel along and through the hub body perpendicular to the pivot axis;a bore cover attached to the circumferential surface of the hub body and over the one end of the tunnel; anda shuttle slidable within the tunnel and having an elongate body, a latch end, and an actuator end, the latch end positioned adjacent the circumferential surface of the hub body at one end of the tunnel and the actuator end extending at least into the frame connection hosel,wherein, when the fold joint is in the folded orientation, the unfolded orientation, or moving therebetween, the shuttle is not exposed but covered by portions of the fold joint. 14. A stroller fold joint according to claim 13, further comprising an end of a first stroller frame part received within the frame connection hosel and an end of a second stroller frame part received within the frame connector, wherein the ends of the first and second stroller frame parts are not exposed when the fold joint is in the folded orientation, the unfolded orientation, or moving therebetween. 15. A stroller fold joint according to claim 13, wherein only the circumferential surface of the hub body and/or the bore cover are exposed between the two plates. 16. A stroller frame assembly having a pair of frame sides, each frame side comprising: a front frame leg having an upper end;a handle push bar having a lower end; and a fold joint including a first joint part with a hosel coupled to a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body, the lower end of the push bar received within the hosel;a second joint part with a connector coupled to two plates having a gap between confronting spaced apart surfaces of the two plates, the hub body sandwiched between the two plates and the upper end of the front frame leg received within the connector, the first and second joint parts pivotable about the pivot axis relative to one another between a folded orientation and an unfolded orientation;a tunnel along and through the hub body perpendicular to the pivot axis; anda shuttle slidable within the tunnel and having an elongate body, a latch end, and an actuator end, the latch end positioned adjacent the circumferential surface of the hub body at one end of the tunnel and the actuator end extending at least into the hosel,wherein, when the fold joint is in the folded orientation, the unfolded orientation, or moving therebetween, the shuttle, the lower end of the push bar, and upper end of the front frame leg are not exposed but covered by portions of the fold joint. 17. A stroller fold joint comprising: a first joint part with a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body;a second joint part with two plates having confronting surfaces spaced apart by a gap therebetween, the hub body captured in the gap between the two plates, the first and second joint parts pivotable relative to one another about the pivot axis between a folded orientation and an unfolded orientation;cam surfaces defined on the confronting surfaces of the two plates;a latch slot defined on the confronting surfaces of the two plates adjacent the cam surfaces;a tunnel along and through the hub body perpendicular to the pivot axis; anda shuttle slidable within the tunnel and having a latch end and an actuator end, the shuttle biased to a latched position with the latch end captured in the latch slot retaining the fold joint in the unfolded orientation, the shuttle having an elongate body and a first slot formed therethrough,wherein moving the shuttle to a released position withdraws the latch end from the latch slot permitting relative rotation of the first and second joint parts from the unfolded orientation to the folded orientation, and wherein a pivot pin through the hub body and two plates defines the pivot axis and passes through the first slot. 18. A stroller fold joint comprising: a first joint part with a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body;a second joint part with two plates having confronting surfaces spaced apart by a gap therebetween, the hub body captured in the gap between the two plates, the first and second joint parts pivotable relative to one another about the pivot axis between a folded orientation and an unfolded orientation;cam surfaces defined on the confronting surfaces of the two plates;a latch slot defined on the confronting surfaces of the two plates adjacent the cam surfaces;a tunnel along and through the hub body perpendicular to the pivot axis; anda shuttle slidable within the tunnel and having a latch end and an actuator end, the shuttle biased to a latched position with the latch end captured in the latch slot retaining the fold joint in the unfolded orientation,wherein moving the shuttle to a released position withdraws the latch end from the latch slot permitting relative rotation of the first and second joint parts from the unfolded orientation to the folded orientation, andwherein the circumferential surface of the hub body is substantially closed, other than where ends of the tunnel open thereto so that the circumferential surface is exposed as the fold joint is moved between the folded and unfolded orientations. 19. A stroller fold joint comprising: a first joint part with a hub body having a puck shape, a circumferential surface, and a pivot axis extending transversely through the hub body;a second joint part with two plates having confronting surfaces spaced apart by a gap therebetween, the hub body captured in the gap between the two plates, the first and second joint parts pivotable relative to one another about the pivot axis between a folded orientation and an unfolded orientation;cam surfaces defined on the confronting surfaces of the two plates;a latch slot defined on the confronting surfaces of the two plates adjacent the cam surfaces;a tunnel along and through the hub body perpendicular to the pivot axis; anda shuttle slidable within the tunnel and having a latch end and an actuator end, the shuttle biased to a latched position with the latch end captured in the latch slot retaining the fold joint in the unfolded orientation,wherein moving the shuttle to a released position withdraws the latch end from the latch slot permitting relative rotation of the first and second joint parts from the unfolded orientation to the folded orientation,wherein one end of the tunnel is aligned with a hosel bore of a hosel on the first joint part and the other end of the tunnel opens to the circumferential surface of the hub body opposite the hosel, andwherein a bore cover is secured to the hub body closing off the other end of the tunnel.