| 摘要 |
<p>In a brake actuator the brake force is transmitted between an axially movable push rod (6) and a brake block holder (3), movable out of line with the push rod, by means of a separate force transmission member (22). This member is arranged between a transverse cylindrical portion (21) in the brake block holder and a cylindrical push rod end (6') perpendicular to said portion and has cylindrical surfaces cooperating with said portion and end, respectively. The cylindrical surface (22') of the member (22), which cooperates with the brake block holder portion (21), is arcuate with its circle center coinciding with the center for the cylindrical push rod end (6'). A shackle (24) biassed by springs (28) forwards in a brake application direction relative to a back cover (25) on the brake block holder engages toothed protrusions (23) on the actuator push rod (6). <IMAGE></p> |
