| 摘要 |
A safety belt mechanism of the spring-actuated spool type which includes mechanism for permitting belt protraction and retraction and with which an improved belt position control mechanism is combined to allow a limited protraction of the belt by the user after the belt has reached an initial position of protraction in a secured position against the user to accomplish, first, an easing of the belt pressure on the user and, second, the assumption of a locked position against retraction of the belt in that eased position until the belt is selectively released by the user. |
