Abstract: A crank mechanism for eyewear comprises a rigid, elongated member which extends across the front frame of the eyewear. Opposite ends of the crank mechanism pivotally connect to the front ends of the right and left temple members, respectively, and operates to move the temple members between their open and folded positions simultaneously with each other.

Abstract: Safety passenger seat apparatus for a vehicle including a passenger seat having a backrest pivotally attached to a seat rest. Energy absorption devices are provided for dissipating and absorbing collison and/or deceleration forces acting on the seat or a passenger in the seat, which energy absorption devices utilize both pivotal and linear movement of portions of the seat during the energy absorption. In one preferred embodiment, a rotation energy transformer is provided at the pivotal connection between the backrest and the seat rest, while a further rotation energy transformer is provided at the attachment of the seat rest to a fixed foot support structure. This preferred embodiment further includes a linear energy transformer which frictionally dissipates energy during linear movement of the foot and attached seat along guide rails fixed in the floor of the vehicle.