| 摘要 |
The stroller comprises a support frame including handle arms (101,102), front and rear wheel carrying leg tubes (111,112,121,122), a seat board (131), and armrests (141,142) mounted at two sides of the seat board (131). The handle arms (101,102) are pivotally connected with rear ends of the armrests (141,142) via first hinge structures (A), the front and rear leg tubes (111,112,121,122) are pivotally connected with the front ends of the armrests (141,142) via second hinge structures (B). The stroller has a linkage assembly including support brackets connected to linkage tubes (211,212). The support brackets are above the armrests (141,142) and connected between the handle arms (101,102). The linkage tubes (211,212) have middle portions pivotally connected with middle portions of the armrests (141,142), and each of the linkage tubes (211,212) has an upper end pivotally connected with one associated support bracket, and a lower end coupled to one associated rear leg tube (121,122) via further linkage elements. The tubes (211, 212) are locked with the rear leg tubes (121, 122) by spring-biassed latches when the stroller is opened-out for use and unlocked by release of the latches by operation of a button mechanism (500) via cables in the tubes (211, 212). |
