| 摘要 |
<p>A brake device for a pushcart includes a main movable member (5) disposed movably within a main seat (3), an auxiliary movable member (6) disposed movably within an auxiliary seat (4), and a connecting member (93) interconnecting the main and auxiliary movable members (5, 6). The main movable member (5) is biased to an upper limit position, and is movable to a lower limit position so as to engage a main brake pin (72) with a groove (712) in a main pin-engaging member (71) that is connected fixedly to one wheel (2). Hence, the connecting member (93) moves the auxiliary movable member (6) from a first position to a second position so as to engage an auxiliary brake pin (72) with a groove (712) in an auxiliary pin-engaging member (71) that is connected fixedly to another wheel (2'). As a result, the wheels (2, 2') are locked.</p> |
