Mechanical neck rest retraction device with a memory function

Details Mechanical neck rest retraction device with a memory function Mechanical neck rest retraction device with a memory function

A - Human Necessities

47

C

A47C 7/38 (2006.01) B60N 2/20 (2006.01) B60N 2/48 (2006.01)

Patent

CA 2329463

A mechanical neck rest retraction device with a memory function including a movably supported locking member which is designed to yieldingly be brought into engagement with one of several stop notches of a neck rest rod. A bridge member is designed to be connected to the ends of the two neck rest rods and a detent member biased by a first spring, is movably supported on the bridge member. An elongate actuator adapted to be moved in parallel with the axis of the neck rest rods, which actuator is engaged by an actuating rope which, when actuated, pulls the actuator downwards against a second spring which biases the actuator upwards. A series of detent recesses are on the elongate actuator for the detent member, which recesses extends in the longitudinal direction of the actuator and having a spacing which corresponds to the spacing of the stop notches, the detent member being located between two adjoining detent recesses when the locking member is in engagement with a stop notch. A stationary guide interacts with the actuator such that when the actuator is in an upper position, the detent member is out of engagement with the actuator, but the actuator is moved towards the detent member from a given displacement path onwards, which causes it to engage the next following upper detent recess. An unlocking member is connected to the actuator, which member actuates the locking member for the release of the neck rest rod when the actuator is moved downwards.

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