| 摘要 |
The safety belt blocking device comprises two pairs of links constituting an articulated parallelogram arrangement interconnecting a fixed member fixed to a support and a movable member between which members the safety belt extends. The links are operative to increase the clamping effect of the movable member on the belt when clamping has been initiated. Supplementary guide means, along which, and a contact with which, the belt is movable, are pivoted in one part to the support and in another part to the movable member. A spring biases the guide means in such manner as to transversely deviate the belt and the latter thus defines a zig-zag line so that, under the effect of a pull exerted on the belt, the belt urges back the guide means in opposition to the action of the spring and the guide means brings the movable member to its clamping position against the belt. |
