| 摘要 |
<p>This invention provides a duo-two leading type drum brake device which simplifies a drum brake structure as well as improves a transmission efficiency of a application force from a shoe actuator to brake shoes. A pivot lever (60) has an intermediate portion pivotally supported on the brake shoes (40). A shoe-actuator (20) is positioned adjacent to the first anchors (30,30) and being disposed between the ends (60a,50a) of the pivot lever (60) and the other brake shoe (50). A strut (70) is positioned between and functionally engaged with the other ends (60b,50b) of the pivot lever (60) and the other brake shoe (50). An application force of the shoe actuator (20) is transmitted to the brake shoe (40) via a pivot section of the pivot lever (70) and transmitted to the other brake shoe (50) directly from the shoe-actuator (20) and indirectly via the strut (70). <IMAGE></p> |
