Headrest locking device

摘要

The headrest locking device (20) acts with a connecting element (18) linking a height-adjustable headrest to the backrest of a vehicle seat. The connecting element is formed from recesses (22) spaced out from each other. The locking device includes a lock (26) sprung in a casing. The lock can be moved between a locked position and a free position in the recesses in the connecting element. The casing (24) contains a weight element (44) to fix the lock positively in the appropriate recess under crash acceleration or deceleration.