Patent ID: 7451999

Claim:
A tandem jogging stroller comprising: a handlebar, said handlebar comprising a transversely extending grip and two end rods respectively extended from two ends of said grip and arranged in parallel, said two end rods each having a longitudinal sliding slot and a connector fixedly fastened to a bottom end thereof; a rear wheel axle, said rear wheel axle having two wheel holders respectively affixed to two distal ends thereof to support a respective rear wheel, said wheel holders each having a barrel and a lug; two rear-seat rear frame bars, said rear-seat rear frame bars each having a top end respectively pivoted to the end rods of said handlebar with a respective pivot pin, and a bottom end respectively connected to the barrels of the wheel holders at the two ends of said rear wheel axle; two rear-seat front frame bars respectively coupled to the end rods of said handlebar, said rear-seat front frame bars each having a top end, a locating frame fixedly provided near the top end, said locating frame having two parallel mounting walls pivotally connected to the connector of the associating end rod of said handlebar with a pivot pin, and a bottom end; two rear-seat side frame bars, said rear-seat side frame bars each having a front end respectively pivoted to said rear-seat front frame bars with a respective pivot pin, and a rear end respectively pivoted to the lugs of the wheel holders at the two ends of said rear wheel axle; a movable bracket, said movable bracket comprising two side frame, two sliding holes respectively formed in said side frames, and two pairs of upright lugs respectively extended from said side frames and respectively pivoted to the bottom ends of said two rear-seat front frame bars with a respective pivot pin; two rear bottom frame bars respectively inserted through the sliding holes of said movable bracket, said rear bottom frame bars each having a rear end respectively pivoted to said rear-seat side frame bars with a respective pivot pin and a front end fixedly mounted with a locating frame; two front bottom frame bars, said front bottom frame bars each having a rear end respectively connected to the side frames of said movable bracket, a front end, and a coupling hole respectively axially formed in the front end; two front-seat rear frame bars, said front-seat rear frame bars each having a bottom end respectively pivoted to the locating frames of said rear bottom frame bars with a respective pivot pi and a top end fixedly mounted with a locating frame; two front-seat front frame bars, said front-seat front frame bars each having a top end respectively pivoted to the locating frames of said two front-seat rear frame bars and a bottom end respectively pivoted to the front ends of said two front bottom frame bars with a respective pivot pin; a reinforcing rod connected between said two front-seat front frame bars; and a front wheel bracket connected to said front bottom frame bars and holding a front wheel.