Patent ID: 6036220
Filing Date: 2000-03-14
Classification: B62B,Y10T

Abstract:
A collapsible tricycle frame device comprising:a generally U-shaped handle having first and second ends,first and second push bars connected to the first and second ends of the generally U-shaped handle respectively,a first seat receiving a lower end of the first push bar,a second seat receiving a lower end of the second push bar,first and second front support rods disposed beneath the first and second push bars respectively,first and second rear support rods disposed under the first and second push bars respectively,the first seat receiving an upper end of the first front support rod and an upper end of the first rear support rod,the second seat receiving an upper end of the second front support rod and an upper end of the second rear support rod,a rear wheel support device receiving a lower end of the first rear support rod and a lower end of the second rear support rod,a front wheel support device receiving a lower end of the first front support rod and a lower end of the second front support rod,first and second base rods disposed between the front wheel support device and the rear wheel support device,the first front support rod having a first pivot end,the first rear support rod having a first pivot end,a first V-shaped recess formed on a lower portion of the first seat to receive the first pivot end of the first rear support rod,a first groove formed on a middle portion of the first seat to receive a first distal end of the first push bar,a first slot formed on an upper portion of the first seat to receive the first pivot end of the first front support rod,the second front support rod having a second pivot end,the second rear support rod having a second pivot end,a second V-shaped recess formed on a lower portion of the second seat to receive the second pivot end of the second rear support rod,a second groove formed on a middle portion of the second seat to receive a second distal end of the second push bar,a second slot formed on an upper portion of the second seat to receive the second pivot end of the second front support rod,the front wheel support device having a first positioning mount, a second positioning mount parallel to the first positioning mount, a first retaining plate disposed in a front of the first positioning mount, and a second retaining plate disposed in a front of the second positioning mount,a first boss disposed on the first positioning mount,a first inserted hole formed on the first boss,a first drive plate disposed on a front portion of the first retaining plate,a first hook end formed on a front end of the first retaining plate,a second boss disposed on the second positioning mount,a second inserted hole formed on the second boss,a second drive plate disposed on a front portion of the first retaining plate,a first hook end formed on a front end of the first retaining plate,a first pivot shaft fastening the first positioning mount and the first retaining plate,a second pivot shaft fastening the second positioning mount and the second retaining plate,a first inserted bar disposed on a lower end of the first front support rod,a first elastic tenon disposed on an end of the first inserted bar,a first protrusion disposed on the lower end of the first front support rod,the first inserted bar inserted in the first inserted hole,the first hook end hooking the first protrusion,a second inserted bar disposed on a lower end of the second front support rod,a second elastic tenon disposed on an end of the second inserted bar,a second protrusion disposed on the lower end of the second front support rod,the second inserted bar inserted in the second inserted hole, andthe second hook end hooking the second protrusion.