An automotive head restraint apparatus includes a housing having a padded and upholstered exterior, the housing being rotatable about a lateral support tube that supports a lock plate having a lobe extending radially with a detent slot extending therein. A latch finger extends from a pivotable lock lever plate to releasably engage in the detent slot to latch the housing in the deployed position. A pull rod is secured to the lock lever plate, and is connected to a release lever arm at its other end. A shape memory alloy (SMA) wire loop is passed about a drive pulley that is supported by a reciprocally translatable slide. A drive arm extends from the slide to impinge on the release lever and raise the pull rod when the SMA wire loop is energized and contracted, thereby releasing the latch finger to rotate the housing to the retracted position.

An automotive head restraint apparatus includes a housing having a padded and upholstered exterior, the housing being rotatable about a lateral support tube that supports a lock plate having a lobe extending radially with a detent slot extending therein. A latch finger extends from a pivotable lock lever plate to releasably engage in the detent slot to latch the housing in the deployed position. A pull rod is secured to the lock lever plate, and is connected to a release lever arm at its other end. A shape memory alloy (SMA) wire loop is passed about a drive pulley that is supported by a reciprocally translatable slide. A drive arm extends from the slide to impinge on the release lever and raise the pull rod when the SMA wire loop is energized and contracted, thereby releasing the latch finger to rotate the housing to the retracted position.

An automotive head restraint apparatus includes a housing having a padded and upholstered exterior, the housing being rotatable about a lateral support tube that supports a lock plate having a lobe extending radially with a detent slot extending therein. A latch finger extends from a pivotable lock lever plate to releasably engage in the detent slot to latch the housing in the deployed position. A pull rod is secured to the lock lever plate, and is connected to a release lever arm at its other end. A shape memory alloy (SMA) wire loop is passed about a drive pulley that is supported by a reciprocally translatable slide. A drive arm extends from the slide to impinge on the release lever and raise the pull rod when the SMA wire loop is energized and contracted, thereby releasing the latch finger to rotate the housing to the retracted position.

An automotive head restraint apparatus includes a housing having a padded and upholstered exterior, the housing being rotatable about a lateral support tube that supports a lock plate having a lobe extending radially with a detent slot extending therein. A latch finger extends from a pivotable lock lever plate to releasably engage in the detent slot to latch the housing in the deployed position. A pull rod is secured to the lock lever plate, and is connected to a release lever arm at its other end. A shape memory alloy (SMA) wire loop is passed about a drive pulley that is supported by a reciprocally translatable slide. A drive arm extends from the slide to impinge on the release lever and raise the pull rod when the SMA wire loop is energized and contracted, thereby releasing the latch finger to rotate the housing to the retracted position.

A headrest module for a motor vehicle seat includes a base component and a headrest mounted in the base component. The headrest is configured to be guided in a vehicle longitudinal direction so as to be extendable and retractable relative to the base component. The headrest further includes a fixing mechanism having a first fixing element with teeth and a second fixing element configured to be moved towards the first fixing element for engagement between adjacent teeth. Contact faces of the two fixing elements are configured such that an extension of the headrest is possible under the action of a force on the headrest in an extension direction. A movement of the headrest in a retraction direction is possible under action of a release mechanism of the headrest module configured to move the second fixing element out of the region between the teeth of the first fixing element.

A headrest module for a motor vehicle seat includes a base component and a headrest mounted in the base component. The headrest is configured to be guided in a vehicle longitudinal direction so as to be extendable and retractable relative to the base component. The headrest further includes a fixing mechanism having a first fixing element with teeth and a second fixing element configured to be moved towards the first fixing element for engagement between adjacent teeth. Contact faces of the two fixing elements are configured such that an extension of the headrest is possible under the action of a force on the headrest in an extension direction. A movement of the headrest in a retraction direction is possible under action of a release mechanism of the headrest module configured to move the second fixing element out of the region between the teeth of the first fixing element.

A headrest assembly for use in a vehicle includes a housing having a front portion and a rear portion, the front portion slidably connected to the rear portion. The headrest assembly also includes an armature operatively coupling the rear portion to a seatback of an automobile seat. The headrest assembly further includes an adjustment mechanism permitting movement of the front portion with respect to the rear portion from a vertically non-adjusted position, wherein the front portion is generally vertically aligned with the rear portion, to a vertically adjusted position, wherein the front portion is moved vertically from the vertically non-adjusted position.

A vehicle seat including a seatback, and headrest including a shell member. A release mechanism is mounted to the shell member. The release mechanism selectively locks the headrest relative to the seatback. An actuator system extends between the seatback and the headrest. The actuator system includes a sleeve having a first end fixedly connected relative to the seatback, a second end fixedly connected relative to the headrest shell, and an intermediate portion defining a longitudinal length of the sleeve, and a cable extending through the sleeve. The cable has a first end section arranged in the seatback and a second end section coupled to the release mechanism. The longitudinal length of the sleeve includes a first dimension when the seatback is in an upright position and the longitudinal length has a second, longer dimension, when the seatback is in a folded configuration.

A vehicle seat including a seatback, and headrest including a shell member. A release mechanism is mounted to the shell member. The release mechanism selectively locks the headrest relative to the seatback. An actuator system extends between the seatback and the headrest. The actuator system includes a sleeve having a first end fixedly connected relative to the seatback, a second end fixedly connected relative to the headrest shell, and an intermediate portion defining a longitudinal length of the sleeve, and a cable extending through the sleeve. The cable has a first end section arranged in the seatback and a second end section coupled to the release mechanism. The longitudinal length of the sleeve includes a first dimension when the seatback is in an upright position and the longitudinal length has a second, longer dimension, when the seatback is in a folded configuration.

The present invention relates to a headrest controlling apparatus, and more particularly, to a headrest controlling apparatus which includes a first fixing member installed on a first member, and a second fixing member installed in the second member to slide in a lateral direction and configured to fix a position of the headrest, wherein one of the first fixing member and the second fixing member includes a fixing groove formed in a lateral direction, the other one includes a fixing protrusion which is inserted into the fixing groove, and the second fixing member includes a first fixing member insertion groove formed to pass therethrough in a rotational direction of the second member so that the first fixing member is inserted thereinto, and thus has a simplified structure, and the first fixing member is fitted onto the first fixing member insertion groove when an occupant pushes the second fixing member to fold a headrest, and thus, convenience of use can be increased by not continuously pushing the second fixing member.