ES406499A1 - Selflocking retractor reel for safety belts in passenger conveying vehicles - Google Patents

Abstract

Self-locking belt reel for passenger transport safety belts with a shaft supported by a spring-loaded wrap-around box, on which the belt can be wound, and an inert locking member eccentrically supported at one end of the shaft, which organ with a previously determined acceleration of rotation of the shaft in the sense of unwinding of the belt, undergoes an outwardly directed movement and collides with stops located in the casing, the blocking member having a recess of curved shape with at least one additional stop in which a protruding insert fits at the end of the shaft, which serves as a stop for the blocking member in the event of a relative movement between the shaft and the blocking member, characterized in that the locking member is structured as a toothed disc or with at least one thick tooth and because the toothed disc is disposed in the central hole of a pressure disk, which has notches on the periphery of the central hole, for the tooth in which the tooth fits in the case of the previously determined rotational acceleration when the toothed disk moves eccentrically, the degree of engagement being delimited by the additional stop, which is provided on the one hand on the shaft and on the other hand on the toothed disc, but which due to its structure and/or the thickness of the material can be exceeded in terms of the position, for example by cutting off a sectional pin, when the acting forces are correspondingly large, after which the tooth is pressed radially with a form closure in the notch of the pressure disc, the forces being transmitted from the shaft, through of the toothed disc support that acts as an angled lever, radially to the pressure disc. (Machine-translation by Google Translate, not legally binding)