Linear Actuating Assemblies for Motorized Headrests

A motorized headrest comprising:

• a fixed portion;
• a moveable portion adapted to support a head of an occupant;
• a first motor having a first stator fixedly connected to the fixed portion, a first rotor circumferentially surrounding the first stator, and a first shaft extending axially through the first stator and fixedly connected to the first rotor;
• and
• a first nut connected to a first threaded portion of the first shaft and fixedly connected to the moveable portion, wherein rotation of the first rotor of the first motor causes linear movement of the moveable portion relative to the fixed portion in a first direction.

A motorized headrest comprising:

• a moveable portion adapted to support a head of an occupant;
• a fixed portion having a hollow region with a first support post extending within;
• a sled slidably mounted to the first support post within the hollow region of the fixed portion;
• a first motor having a first stator fixedly connected to the fixed portion, a first rotor circumferentially surrounding the first stator, a first shaft fixedly connected to the first rotor, and a first connector fixedly connected to the sled and having a nut connected a first threaded portion of the first shaft, wherein rotation of the first rotor of the first motor around the first stator causes linear movement of the sled along the first support post in a first direction;
• and
• a second motor having a second stator fixedly connected to the sled, a second rotor circumferentially surrounding the second stator, a second shaft fixedly connected to the second rotor, and a second connector fixedly connected to the moveable portion and having a second nut connected to a second threaded portion of the second shaft, wherein rotation of the second rotor of the second motor around the second stator causes linear movement of the fixed portion in a second direction.