| 摘要 |
A device for lowering a load along a metal band (2) comprises a brake housing (4) accomodating a brake mechanism with at least one brake shoe (14, 16; 34, 36; 54, 56; 74, 76) which acts on the metal band (2). The brake shoe (14, 16; 34, 36; 54, 56; 74, 76) is pressed against the metal band (2) by a force which depends on the mass or load. The load is suspended from a load wedge (17; 37; 57; 77) which, in the brake mechanism, converts a pull substantially in the longitudinal direction of the metal band (2) to a pressure acting on the metal band (2) through said brake shoe (14, 16; 34, 36; 54, 56; 74, 76).
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