A baby stroller for transporting a child is disclosed. This baby stroller has a folding mechanism to facilitate folding for easier stowing and transporting. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in manufacturing
A baby stroller for transporting a child is disclosed. This baby stroller has a folding mechanism to facilitate folding for easier stowing and transporting. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in manufacturing costs.
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1. A stroller, comprising: a pivot member;a first rotatable member with a first aperture having a first gear, wherein the first gear is formed at a first edge portion of the first rotatable member defining a portion the first aperture;a second rotatable member with a second aperture having a second
1. A stroller, comprising: a pivot member;a first rotatable member with a first aperture having a first gear, wherein the first gear is formed at a first edge portion of the first rotatable member defining a portion the first aperture;a second rotatable member with a second aperture having a second gear, wherein the second gear is formed at a second edge portion of the second rotatable member defining a portion of the second aperture; anda third gear positioned in driving engagement with the first gear and the second gear so that the first rotatable member and the second rotatable member rotate relative to each other in geared coordination; wherein the first edge being radially outward of the axis of the third gear and the second edge being radially inward of the axis of the third gear, the first and second rotatable members being rotatably coupled to the pivot member to rotate about common axis of rotation. 2. The stroller of claim 1, wherein the pivot member being configured to be supportingly engaged by one of a front wheel support, a rear wheel support and a handle member, the first rotatable member being configured to be attached to a different one of the front wheel support, rear wheel support and handle member, and the second rotatable member being configured to be attached to yet another different one of the front wheel support, rear wheel support and handle member. 3. The stroller of claim 1, wherein the first aperture is elongated and the second aperture is elongated, and wherein the elongated first and second apertures at least in part overlap. 4. The stroller of claim 3, wherein the first gear has a first pitch diameter and the second gear has a second pitch diameter, with the first pitch diameter and the second pitch diameter not being the same. 5. The stroller of claim 4, wherein the first pitch diameter of the first gear is sized to rotate one of a front wheel support, a rear wheel support and a handle member to which the first rotatable member is configured to be attached through a first angle of rotation from a folded position to an unfolded position, and wherein the second pitch diameter for the second gear is sized to rotate another one of the front wheel support, rear wheel support and handle member to which the second rotatable member is configured to be attached through a second angle of rotation from a folded position to an unfolded position, with the first and second angles of rotation not being the same. 6. The stroller of claim 1, wherein the first gear has a first pitch and the second gear has a second pitch different than the first pitch, and wherein the third gear includes a first gear portion with the first pitch and a second gear portion with the second pitch, the first and second portions of the third gear rotating as a unit, and the first gear portion of the third gear is positioned in the first aperture in driving engagement with the first gear and the second gear portion of the third gear is positioned in the second aperture in driving engagement with the second gear. 7. A stroller, comprising: left and right side laterally spaced-apart first members, each of the first members having a first end portion, a second end portion, and connected through their first ends;left and right side laterally spaced-apart second members, each of the second members having a first end portion, a second end portion, and connected through their first ends;left and right side laterally spaced-apart third members, each of the third members having a first end portion, a second end portion, and connected through their first ends; andleft and right side laterally spaced-apart folding assemblies, each of the left and right side folding assemblies having a first rotatable plate and a second rotatable plate rotatably mounted on a pivot member to pivot about a common axis in parallel planes, the first rotatable plate having a first aperture with a first gear and the second rotatable plate having a second aperture with a second gear, each of the left and right side folding assemblies further having a third gear positioned in both the first and second apertures such that the first gear is formed at a first edge portion of the first rotatable plate defining a portion of the first aperture and the second gear is formed at a second edge portion of the second rotatable plate defining a portion of the second aperture of each the left and right side folding assemblies, with the first edge being radially outward of the axis of the third gear and the second edge being radially inward of the axis of the third gear, such that the third gear is in driving engagement with the first gear and the second gear so that the first rotatable plate and the second rotatable plate rotate relative to each other in geared coordination. 8. The stroller of claim 7, wherein one of the second end portions of a first one of the first, second and third members being attached to the first rotatable plate, one of the second end portions of a different second one of the first, second and third members being attached to the second rotatable plate, and one of the second end portions of another different third one of the first, second and third members supporting the pivot member. 9. The stroller of claim 7, wherein the first and second rotatable plates each have a central portion with the central portions arranged in face-to-face juxtaposition. 10. The stroller of claim 7, wherein the first and second rotatable plates each have a planar arm portion projecting therefrom and in coplanar relation therewith, the one of the second end portions attached to the first rotatable plate being attached to the arm portion thereof and the one of the second end portions attached to the second rotatable plate being attached to the arm thereof. 11. The stroller of claim 7, wherein the first gear has a first pitch diameter and the second gear has a second pitch diameter, with the first pitch diameter and the second pitch diameter not being the same. 12. The stroller of claim 11, wherein the first pitch diameter of the first gear is sized to rotate the one of the first, second and third members attached to the first rotatable plate through a first angle of rotation from a folded position to an unfolded position, and wherein the second pitch diameter for the second gear is sized to rotate the one of the first, second and third members attached to the second rotatable plate through a second angle of rotation from a folded position to an unfolded position, with the first and second angles of rotation not being the same. 13. The stroller claim 7, wherein the first and second rotatable plates are rotatably mounted to rotate about the common axis through spaced apart parallel rotation planes with the common axis transverse to the first and second rotatable plates, and the third gear is rotatably mounted to rotate about an axis transverse to the rotation planes of the first and second rotatable plates and spaced apart from the common axis of the first and second rotatable plates. 14. The stroller of claim 13, wherein the first and second rotatable plates each have a planar arm portion projecting therefrom and in coplanar relation therewith and rotatable with the first and second rotatable plates through the respective spaced apart parallel rotation planes of the first and second rotatable plates, the one of the second end portions attached to the first rotatable plate being attached to the arm portion thereof and the one of the second end portions attached to the second rotatable plate being attached to the arm thereof. 15. The stroller of claim 7, wherein the third gear is rotatably mounted to rotate about an axis parallel to and spaced apart from the common axis of the first and second rotatable plates. 16. The stroller of claim 15, wherein the first and second rotatable plates are rotatably mounted to rotate about the common axis with the first and second gears being in parallel rotation planes. 17. The stroller of claim 7, wherein the first gear has a first pitch and second gear has a second pitch different than the first pitch, and wherein the third gear includes a first gear portion with the first pitch and a second gear portion with the second pitch, the first and second portions of the third gear rotating as a unit, and the first gear portion of the third gear is positioned in the first aperture in driving engagement with the first gear and the second gear portion of the third gear is positioned in the second aperture in driving engagement with the second gear. 18. A stroller, comprising: a folding assembly comprisinga first rotatable member and a second rotatable member rotatably mounted to rotate relative to each other, the first rotatable member being positioned for rotation in a first rotation plane and the second rotatable member being positioned for rotation in a second rotation plane spaced apart from the first rotation plane, the first rotatable member having a first gear portion and the second rotatable member having a second gear portion; anda third gear extending between the spaced apart first and second rotation planes and positioned such that the first rotatable member has a first aperture and the first gear is formed at a first edge portion of the first rotatable plate defining a portion of the first aperture and the second rotatable member has a second aperture and the second gear is formed at a second edge portion of the second rotatable member defining a portion of the second aperture, with the first edge being radially outward of the axis of the third gear and the second edge being radially inward of the axis of the third gear such that the third gear is in driving engagement with both the first and second gear portions so that the first rotatable member and the second rotatable member rotate relative to each other in geared coordination. 19. The stroller of claim 18, wherein the first edge portion is positioned at an elongated outward edge of the first aperture and the second edge portion is positioned at an elongated inward edge of the second aperture. 20. The stroller of claim 19, wherein the first gear portion has a first pitch diameter and the second gear portion has a second pitch diameter, with the first pitch diameter and the second pitch diameter not being the same. 21. The stroller of claim 18, wherein the stroller is movable between a folded position and an unfolded position, wherein the first pitch diameter of the first gear portion is sized to rotate the first rotatable member through a first angle of rotation from the folded position to the unfolded position, and wherein the second pitch diameter for the second gear portion is sized to rotate the second rotatable member through a second angle of rotation from the folded position to the unfolded position, with the first and second angles of rotation not being the same. 22. The stroller of claim 18, wherein the first and second rotatable members are positioned for rotation in parallel first and second rotation planes, and the first and second rotatable members are rotatably mounted on a pivot member for symmetric rotation about a common axis of rotation through the spaced apart parallel first and second rotation planes with the common axis transverse to the first and second rotatable members, and the third gear is rotatably mounted to rotate about an axis transverse to the first and second rotation planes of the first and second rotatable members and outwardly spaced apart from the common axis of the first and second rotatable members. 23. The stroller of claim 18, wherein the first and second rotatable members are rotatably mounted on a pivot member for rotation about a common axis of rotation and the third gear is rotatably mounted to rotate about an axis parallel to and spaced apart from the common axis of the first and second rotatable members. 24. The stroller of claim 18, wherein the first gear portion has a first pitch and second gear portion has a second pitch different than the first pitch, and wherein the third gear includes a third gear portion with the first pitch and a fourth gear portion with the second pitch, the third and fourth gear portions of the third gear rotating as a unit, and the third gear portion of the third gear is positioned in the first aperture in driving engagement with the first gear portion and the fourth gear portion of the third gear is positioned in the second aperture in driving engagement with the second gear portion. 25. The stroller of claim 24, wherein the third gear portion of the third gear is a first pinion gear and the fourth gear portion of the third gear is second pinion gear, the first and second pinion gears being in coaxially arrangement.
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