| 摘要 |
2051427 9012710 PCTABS00002 A safety belt retractor in which the reel (16) is supported on a movable frame (14) which cooperates with a braking mechanism (18) such that when the reel locks, subsequent belt tension displaces the movable frame into camming engagement with a pivoting braking mechanism (18) to shift a brake shoe (50) into direct contact with the belt web. The brake shoe (50) is supported on the braking mechanism (18) for movement relative thereto. The brake shoe (50) and its mounting portions preferably have complementary interfitting bearing surfaces (56 and 54) which share a common axis of curvature, with the bearing surface (56) on the brake shoe (50) being convex, and the complementary surface (54) on the cam (52) being concave.
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