A jogging stroller frame with a wheels automatic flattening folding mechanism is disclosed, which includes a foldable frame, a front wheel set, a pair of rear wheel sets and a driving mechanism. The driving mechanism is associated with the foldable frame for pivoting the front and rear wheels about
A jogging stroller frame with a wheels automatic flattening folding mechanism is disclosed, which includes a foldable frame, a front wheel set, a pair of rear wheel sets and a driving mechanism. The driving mechanism is associated with the foldable frame for pivoting the front and rear wheels about 90 degrees away from the longitudinal direction automatically during the jogging stroller frame is converting into its folded configuration for storage.
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1. A jogging stroller frame with a folding mechanism for automatically flattening wheels, including: a foldable frame, having an erected configuration for transportation of an occupant, and a folded configuration for storage;a front wheel set, swivelably mounted at a front end of the foldable frame,
1. A jogging stroller frame with a folding mechanism for automatically flattening wheels, including: a foldable frame, having an erected configuration for transportation of an occupant, and a folded configuration for storage;a front wheel set, swivelably mounted at a front end of the foldable frame, wherein the front wheel set is associated with the foldable frame by a linking rod such that the front wheel set can be rotated to a direction parallel to the second direction of the rear wheel sets as soon as the foldable frame has been converted to the folded configuration;a pair of rear wheel sets, each having a rear wheel and a sleeve swivelably sleeved on a rear lower end of the foldable frame thereby rotating and retaining the rear wheel between a first direction parallel to a travel direction and a second direction transverse to said first direction; anda driving mechanism, mounted and associated between the foldable frame and the pair of rear wheel sets thereby automatically driving the pair of rear wheel sets from the first direction to the second direction by converting the foldable frame from the erected configuration to the folded configuration. 2. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 1, wherein the foldable frame has a pair of rear struts and a push arm pivoted at the rear end thereof, and the sleeves of the rear wheel sets are swivelably sleeved on the lower ends of the pair of rear struts. 3. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 1, wherein the rear wheel sets each includes a rear wheel mount formed with the sleeve and pivotally connecting at least the rear wheel on one side thereof, the rear wheel sets being spaced apart from each other such that keeps the two rear wheels from overlapping or intercrossing with each other in the second direction. 4. The jogging stroller frame with a wheels automatic flattening folding mechanism for automatically flattening wheels of claim 1, wherein the front wheel set is swiveled to a direction parallel to the second direction of the rear wheel sets when the foldable frame has been converted to the folded configuration. 5. A jogging stroller frame with a folding mechanism for automatically flattening wheels, including: a foldable frame, having an erected configuration for transportation of an occupant and a folded configuration for storage;a front wheel set, swivelably mounted at a front end of the foldable frame;a pair of rear wheel sets, each having a rear wheel and a sleeve swivelably sleeved on a rear lower end of the foldable frame thereby rotating and retaining the rear wheel between a first direction parallel to a travel direction and a second direction transverse to said first direction; anda driving mechanism, mounted and associated between the foldable frame and the pair of rear wheel sets thereby automatically driving the pair of rear wheel sets from the first direction to the second direction by converting the foldable frame from the erected configuration to the folded configuration;wherein the foldable frame includes at least a front strut that has a swivel mount for swivelably connecting the front wheel set, a seat support frame pivoted to the front strut, and a linking rod pivotally connected between the swivel mount and the seat support frame, such that when the foldable frame is folding from the erected configuration, the rotation of the seat support frame drives the swivel mount through the linking rod, thereby rotating the front wheel set toward a direction parallel to the second direction of the rear wheel sets until the foldable frame has been converted to the folded configuration. 6. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 5, wherein the front wheel set includes a front wheel mount having a lower portion pivotally connected with a front wheel by an extension element and a top portion swivelably connected to the swivel mount. 7. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 5, wherein the rear wheel set includes a rear wheel mount connected with the sleeve and pivotally connected with the rear wheel on one side thereof; the sleeve being formed with a skewed slot for association with the driving mechanism. 8. A jogging stroller frame with a folding mechanism for automatically flattening heels including: a foldable frame, having an erected configuration for transportation of an occupant, and a folded configuration for storage;a front wheel set, swivelably mourned at a front end of the foldable frame;a pair of rear wheel sets, each having a rear wheel and a sleeve swivelably sleeved on a rear lower end of the foldable frame thereby rotating and retaining the rear wheel between a first direction parallel to a travel direction and a second direction transverse to said first direction; anda driving mechanism, mounted and associated between the foldable frame and the pair of rear wheel sets thereby automatically driving the pair of rear wheel sets from the first direction to the second direction by converting, the foldable frame from the erected configuration to the folded configuration;wherein the foldable frame has a pair of rear struts and a push arm pivoted at the rear end thereof, and the sleeves of the rear wheel sets are swivelably sleeved on the lower ends of the pair of rear struts;wherein the sleeve is formed with a skewed slot, the pair of rear struts each is formed with a long slot, and the driving mechanism includes:a pair of driving mounts associated with the push arm;a first pin slidably received in the long slot and having one end slidably inserted and received in the skewed slot;a return spring connected and biased on the first pin for moving the sleeve of the rear wheel sets through the skewed slot thereby rotating the pair of rear wheel sets to the first direction; anda linking element associated and connected between the driving mount and the first pin, when the foldable frame is converted from the erected configuration to the folded configuration, the push arm rotates the driving mounts and pulls the first pin against the return spring thereby rotating the pair of rear wheel sets to the second direction. 9. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 8, wherein the driving mechanism further includes a slider connected with the linking element, the return spring and the first pin thereby reciprocally carrying the first pin moving along the long slot. 10. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 9, wherein the linking element is a flexible member each having one end connected to the driving mount and another end connected to the slider. 11. The jogging stroller frame with a flattening folding mechanism for automatically flattening wheels of claim 9, wherein the linking element is a solid rod each having one end connected to the driving mount and another end connected to the slider. 12. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 8, wherein the push arm has two lugs for pivoting the pair of rear struts; the pair of driving mounts are mounted on the push arm and rotatable relative to the pair of rear struts. 13. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 8, wherein the sleeve is formed with a slot, and the pair of rear struts each has a positioning pin slidably inserted and engaged within the slot thereby limiting the rotation of the sleeve between the longitudinally travel direction and the second direction. 14. The jogging stroller frame with folding mechanism for automatically flattening wheels of claim 8, wherein the skewed slot has a first vertical section formed at one end thereof for positioning the first pin thereby stably locking the sleeve in the second direction. 15. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 8, wherein the skewed slot has a second vertical section formed at one end thereof for positioning the first pin thereby stably locking the sleeve in the first direction, so as to prevent wobbling of the rear wheel sets during the foldable frame is kept in the erected configuration. 16. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 8, wherein the pair of driving mounts is pivotally mounted in the rear struts and associated with the push arm by a pair of joint arms, the pair of joint arms has one end pivoted on the push arm, and another end connected to the driving mounts so as to pull the first pin through the linking element by rotating the push arm. 17. The jogging stroller frame with a folding mechanism for automatically flattening wheels of claim 8, wherein the pair of driving mounts is fixedly mounted on the push arm and associated with the first pin through the linking element.
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