| 摘要 |
A fastener mechanism for the chin strap of a helmet. An insertion lock is secured to the helmet shell and has a receiving channel for receiving the fastener part of the chin strap. The fastener part is longitudinally displaceably provided in the receiving channel, with arresting teeth being disposed one after the other in the longitudinal direction on at least one narrow side of the fastener part. An arresting member is disposed in the insertion lock on one side of the receiving channel thereof and cooperates with the teeth of the fastener part. The arresting member is disposed essentially alongside the fastener part at least nearly in a plane therewith. A spring exerts force on the arresting member in a direction toward the fastener part, with the arresting member assuming an engagement position with the fastener part that prevents the latter from being pulled out of the insertion lock. A handle is provided for shifting the arresting member into a disengaged position whereby the fastener part is released.
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