Abstract: A lumbar support system for an aircraft seat includes a deformable lumbar support basket having a proximate end and a distal end. The system includes a shape memory alloy tension cable in communication with the proximate end of the deformable lumbar support basket, and the distal end of the deformable lumbar support basket. The shape memory alloy tension cable has a changeable tension length with an electric current through the cable. The system also includes a controller operatively connected with the shape memory alloy tension cable. The controller transmits the electric current through the shape memory alloy tension cable based on the user actuation. The electric current causes the shape memory alloy tension cable to deform the lumbar support basket by tension force applied to the proximate end of the deformable lumbar support basket and the distal end of the deformable lumbar support basket.

Abstract: A device for pneumatically adjusting a seat in a transport vehicle, in particular in a motor vehicle, including one or more adjusting devices, each of which includes a pneumatic actuating device for adjusting the seat by generating pneumatic pressure, and including a trigger device, which the actuating device is switched from a standby state to an active state in response to a trigger signal when the device is being operated. The pneumatic actuating device brings about an adjustment of the seat in the active state. The pneumatic actuating device is designed such that the actuating device is mechanically preloaded in the standby state, and the mechanical preload is released in the active state in order to thus bring about the adjustment of the seat.

Abstract: A vehicle seat device includes a seat cushion disposed on a floor of a vehicle, a seat back linked to a rear end part of the seat cushion, and a headrest fitted to an upper end part of the seat back, wherein a vibration system that also includes the seat back and the headrest is equipped with a dynamic damper. The dynamic damper includes an elastic member that is embedded within a cushion member of the vibration system, and a weight embedded in the elastic member. The weight has a center of gravity thereof set to a position offset to at least one side from a center of the cushion member in an up-and-down direction of a seat, and the weight has an asymmetric shape in at least one of a lateral direction and an up-and-down direction.

Abstract: A frame serving as a seatback frame for a vehicle seat and simply configured to reduce a load applied to a seated occupant at the time of a vehicle collision is provided. A seatback frame includes a connecting wire which connects side frames. The center of the connecting wire is bent to extend toward a front side of a vehicle seat. When the seated occupant is moved toward a rear side of the vehicle seat at the time of a vehicle rear-end collision, the forward extending portion restrains a portion of the back of the seated occupant in which a thoracic vertebra is located and reduces an amount of a rearward movement of the portion.

Abstract: A vehicle control device that includes: an airbag device including an airbag, the airbag being configured as an integral bag body for surrounding a head of an occupant with a front deployment section including a front inflation section that is inflated and deployed in front of a seat corresponding to the head and at least one of shoulders or a chest of the occupant, and a left and right pair of lateral deployment sections including lateral inflation sections that are connected to the front deployment section and are inflated and deployed at sides of the head of the occupant; and a controller that, after the airbag device has been actuated, executes a drive-to-refuge mode in which driving of a power unit of a vehicle and steering of a steering system are controlled to drive the vehicle to take refuge at a road shoulder.

Abstract: A retaining device for vehicle headrests, including a guide element inside which a fixing rod for fixing a headrest can be housed, a retaining element movable between a retaining position, in which the retaining element prevents the movement of the fixing rod with respect to the guide element, and a release position, and a push button for moving the retaining element from the retaining position to the release position, and at least one lever linked with the push button transferring the movement of the push button to the retaining element, and an elastic element pushing the lever towards the retaining position of the retaining element, wherein the retaining element and the lever are made in a single piece.

Abstract: A vehicle seat includes a seat back and headrest provided with a stay, a pair of panel members that sandwich a part of the stay from front and rear or above and below, and joined to each other through outer peripheries so as to form a space inside, a cushion material formed so as to cover the panel members and the part of the stay, and a dynamic damper arranged inside the space. The dynamic damper has a weight, and an elastic body that fastens the weight and has a leg part extending in a direction away from the weight. A part of the leg part is attached to the pair of panel members by being sandwiched by the pair of panel members.

Abstract: The present invention relates to an assembly (21), particularly for a seat frame (7), comprising a structural tube (15) and at least one frame wire (20) mounted on the structural tube (15). The frame wire is mounted on the structural tube (15) by metal forming without the addition of external material. The present invention also relates to a seat frame (7), particularly for a backrest or a seat portion of a vehicle seat, comprising a left side flank (10) and/or a right side flank (11). The seat frame comprises at least one structural tube (15) mounted to the left side flank (10) and/or to the right side flank (11) by metal forming without the addition of external material.

Abstract: A motor vehicle seat (1) includes a backrest (3) and a headrest (2) which has a headrest body (2.1) which contains at least one filling material (2.1.2). The headrest body (2.1) is coupled to the backrest (3) by means of a maintaining element (2.2). The headrest body (2.1) can be axially moved automatically with respect to the backrest (3), at least in areas of a contact surface between a head of a passenger (A) and the headrest body (2.1). A sliding device (5) is introduced into at least one section between the maintaining element (2.2) and the filling material (2.1.2).

Abstract: The invention relates to a seat (1), in particular an office chair, comprising a seat support (3) for a seating surface (6) and comprising a backrest support (4) of a backrest (5), which is held on the seat support (3) so as to be able to move in a tiltable manner to the side, wherein the backrest support (4) comprises two support arms (4a, 4b) which are configured to be flexible and/or articulated laterally and spaced apart from one another. Preferably, the seating surface (6) and/or the backrest (5) comprises a curved seat shell and/or backrest shell (6a, 5a) provided with a cover (6b, 5b) with a number of flexible curved ribs (15, 16) on the edge of the shell, wherein the cover is stretched by the seat shell and/or backrest shell (6a, 5a) such that when the cover (6b, 5b) is loaded, the bending of the curved ribs (15, 16) is altered.

Abstract: An active head restraint for a seating assembly of a motor vehicle comprises a structural support for a seatback of the seating assembly, a movable head restraint pad having a stowed position and a deployed position, and a linkage deployment mechanism. The linkage deployment mechanism comprises an upper and lower bar pivotally attached at a forward end to a rear surface of the movable head restraint pad and pivotally attached at a rearward end to an outer tube fixed to an upper portion of the structural support. An inner tube reciprocates within the outer tube. A trigger mechanism is operatively connected with a lower end of the inner tube and urges the inner linkage and an actuating link to a raised deployed position in response to a rear impact event. The actuating link applies an upward force to the lower bar to deploy the movable head restraint pad.

Abstract: A vehicle seat for a passenger, comprising a backrest having a front face directed towards the passenger and a rear face opposite the front face, and a seat part having an upper face directed towards the passenger and a lower face opposite the upper face, wherein the rear face of the backrest and/or the lower face of the seat part comprise(s) at least one area that is deformable in the event of an impact, towards the front face of the backrest and/or towards the upper face of the seat part respectively, and in that the front face and rear face of the backrest, and/or the upper face and lower face of the seat part are located at a distance from each other, at least at said at least one deformable area, so as to define a clearance space, said at least one deformable area of the rear face of the backrest and/or of the lower face of the seat part being configured so as to deform into the clearance space in the event of an impact on the rear face of the backrest and/or the lower face of the seat part, without tran

Abstract: The present disclosure provides an electric headrest including: an oil damper which has a storing part in which oil is stored, and a rotary shaft coupled to the top of the storing part and having a first saw-toothed part protruding from the outer peripheral surface of the rotary shaft; a center cover that is formed in the center of the rear of a headrest pad and in which the oil damper is coupled to the inside of a hinge coupling part; and a side cover coupled to the center cover at the side of the center cover by the hinge coupling part, and having a second saw-toothed part formed at a position corresponding to the first saw-toothed part of the oil damper.

Abstract: Described herein is a system for setting a component of a vehicle for a driver or passenger, such as a vehicle seat or mirror, to increase driver and/or passenger safety. The system includes a vehicle component having at least one user-adjustable setting, such as a recline angle for a seat back. The system also includes a sensor, such as a camera or force sensor, configured to detect body measurement data corresponding to a physical attribute of a user. For example, the body measurement data may include a height, a weight or the like. The system also includes an electronic control unit (ECU) coupled to the vehicle component and the sensor. The ECU is designed to determine an optimal setting for the vehicle component based on the body measurement data. The ECU can also control the vehicle component to have the optimal setting.

Abstract: A headrest has a pad that is formed integrally with an outer cover by foam molding, and is also provided with: a low-resilience layer that is set in a front part of the pad and has lower resilience than the pad; a support member that is harder than the pad and supports the low-resilience layer from a backside of the low-resilience layer; and a blocking member that is located at a position to cover a contact area of the low-resilience layer and the support member from an outer circumference side while being in contact with at least one of the low-resilience layer and the support member and blocks infiltration of a foamed resin material of the pad into the contact area.

Abstract: The time until a headrest contacts the head of an occupant in the event of a rear collision is shortened with a simple configuration. In a seat device, a stay (46) (including grommets (22)) is set with bending rigidity towards the vehicle front lower than the bending rigidity towards the vehicle rear. Accordingly, when the headrest oscillates in the event of a vehicle rear collision, the headrest is initially displaced towards the vehicle rear, however the headrest changes direction in a short time and begins to be displaced towards the vehicle front. Moreover, there is a large displacement of the headrest towards the vehicle front since the stay (46) (including the grommets (22)) has a lower bending rigidity towards the vehicle front than the bending rigidity towards the vehicle rear. The time until the headrest contacts the head (H) of the occupant can accordingly be shortened.

Abstract: Articulation device between arms of a rod assembly of a folding roof for a passenger vehicle, which roof may be adjusted between a closed position which spans a passenger compartment and an open position in which the roof may be stored in a rear space of the vehicle. The arms held in position by a rivet device which includes a blind rivet and a rivet shaft which extends through the arms.

Abstract: Embodiments of the present invention may include a vehicle seat having a seatback and a headrest. The headrest has a first headrest portion, a second headrest portion and a headrest cover. The first headrest portion is connected to the seatback. The second headrest portion is provided nearer to a user seated in the seat than the first headrest portion. The second headrest portion is provided on the first headrest portion so as to be vertically movable. The headrest cover covers the first headrest portion and the second headrest portion. The headrest cover includes an elastic region. When the second headrest portion moves vertically with respect to the first headrest portion, the elastic region is deformed so as to allow movement of the second headrest portion.

Abstract: It is obtained a headrest and a vehicle seat provided therewith and a method of manufacturing a headrest, that can reduce load to a neck portion of a vehicle occupant at a time of a rear collision while ensuring NV performance. A first urethane and a second urethane are disposed at an inner side of a headrest skin of a vehicle seat, and structure a headrest pad. The first urethane is embedded in the second urethane, and is elastically deformable, and supports a mass body. An elastic coefficient of the second urethane is set to be higher than that of the first urethane.

Abstract: A child safety seat includes a seat back and a head rest disposed on the seat back. When a child sits on the child safety seat, his back is against the seat back, and his head is against the head rest. The child safety seat also includes two sliding slot structures, formed on the seat back, and two sliding rods. The two sliding rod are connected to two opposite sides of the head rest corresponding to the two sliding slot structures and slidably disposed in the corresponding sliding slot structures. When the sliding rod is at a first restraining position of the sliding slot structure and the child safety seat shakes because of an impact, the head rest moves relative to the seat back, so that the sliding rod slides to a second restraining position sliding slot structure, which reduces possible harm to the head of the child.

Abstract: A head restraint assembly is provided with a head restraint frame mounted to a post for movement along the post for adjustment relative to a vehicle seat. The head restraint frame has a contact surface. A biasing member is mounted to the head restraint frame for movement relative to the head restraint frame to maintain the head restraint frame in a locked condition along the post. An actuation member is mounted to the head restraint frame for movement relative to the head restraint frame. The actuation member cooperates with the biasing member such that movement of the actuation member moves the biasing member, thereby disengaging the biasing member from the post to permit movement of the head restraint along the post such that the biasing member engages the contact surface in the second position to provide feedback to the user of an unlocked condition of the head restraint frame.

Abstract: A vehicle headrest, including two side wings at opposite ends of the headrest that rotate around respective axes; and a locking mechanism that locks each of the side wings, and backwards movement is restricted by the locking mechanism when each side member is rotated around the respective axis.

Abstract: A headrest support rod includes a first hollow tubular portion and a second hollow tubular portion. The first hollow tubular portion includes a first end having a first opening configured to receive filler material from an injection pump, is configured to support a headrest, and is configured to be disposed at least partially outside of the headrest. The second hollow tubular portion includes an opening and is configured to be disposed at least partially inside the headrest. The first hollow tubular portion is configured to enable the filler material to be transmitted from the first opening to the second hollow tubular portion, and the second hollow tubular portion is configured so as to enable the filler material to pass through the second opening to form the headrest.

Abstract: A compact headrest having a simplified and more compact mechanism is provided. The headrest includes a first and a second headrest pillars, and a stationary unit disposed therebetween. The stationary unit is movable in a vertical direction along the pillars. The headrest further includes a movable unit movable forward away from the stationary unit and rearward toward the stationary unit through a moving mechanism. The headrest further includes a front-rear locking mechanism having a lock receiver and a locking component engaging therewith. The front-rear locking mechanism locks and unlocks the movable unit moving in a front-rear direction to the stationary unit. The headrest further includes a vertical locking mechanism locking and unlocking the stationary unit stepwise in a vertical direction along the pillars. The headrest further includes an operation unit for simultaneously operating the front-rear locking mechanism and the vertical locking mechanism in a substantially identical direction.

Abstract: A headrest includes linkage supports with high rigidity. The headrest includes a first headrest pillar and a second headrest pillar, a stationary unit disposed between the first and the second headrest pillars, a movable unit which is movable forward away from the stationary unit and backward toward the stationary unit, and a linkage linking the stationary unit with the movable unit. The linkage includes linkage segments. The stationary unit and the movable unit include supports, respectively. The linkage segments are rotatably connected to and supported by the respective supports. The supports each have a width in the widthwise direction and a thickness in the front-rear direction, the width is greater than the thickness.

Abstract: A head restraint assembly is provided and includes a base including a cross member. Also included is a head restraint having a housing. Further included is an internal cavity at least partially defined by the housing. Yet further included is a lock mechanism assembly retained within the internal cavity, the lock mechanism assembly comprising first and second lock members, the first lock member including a first plurality of teeth and the second lock member including a second plurality of teeth, wherein the pluralities of teeth are engageable with each other and selectively rotatable with respect to each other in first and second directions. Also included is an actuator arm engaged with the second lock member and configured to selectively permit rotation of the second lock member relative to the first lock member.

Abstract: Disclosed is a safety belt system for vehicle seats, including: a vehicle seat part which includes a seat portion, and a backrest; a safety belt which includes a shoulder belt, and a waist belt, and restricts a body of an occupant; a headrest which is connected with the backrest by a rotation shaft, and protects a face or neck region of the occupant from the shoulder belt using a cushion having both convex sides; a sensor which senses impact of the vehicle; and a rotation locking unit which prevents the headrest from being rotated when the sensor senses an accident signal that is equal to or greater than a predetermined output.

Abstract: A movable headrest includes a base member including a headrest stay; a movable member that is slidable relative to the headrest stay; and a lock mechanism that locks the movable member such that the movable member is restrained from sliding relative to the headrest stay. The movable member includes a flexure part that bends due to a load received from a head of an occupant, a frame part that supports the flexure part, and an engaging portion. The frame part includes a sliding portion that slides relative to the headrest stay, and when the flexure part is bent such that the engaging portion is moved relative to the frame part, the movable member is unlocked.

Abstract: In a vehicle seat, a bracket contact member is fixed to a seat back frame and contacts support brackets in an initial use position, to suppress rearward tilting of a head rest with respect to the seat back frame. While suppressing rearward tilting, forward tilting of the head rest with respect to the seat back frame from the initial use position, by inertia force in the event of a rear-end collision of a vehicle, is not suppressed by the contact member.

Abstract: Provided is a vehicle seat by which an impact of rear end collision is reduced and of which peripheral structure of a side frame is simplified. A vehicle seat includes: a seat back frame which includes side portions positioned at the sides thereof, a pressure receiving member which is jointed to the seat back frame through joint members and supports an occupant, and an impact reduction member which is disposed on at least one of the side portions to engage with the joint member and to move by a predetermined amount of impact load applied to the pressure receiving member so that the pressure receiving member is caused to move rearward; in which the side portion includes a convex portion protruding in the movement range of the impact reduction member, and the impact reduction member abuts against the convex portion so that the movement of the impact reduction member is prevented.

Abstract: A vehicle headrest device capable of both securing the comfort of an occupant under normal conditions and enhancing the whiplash injury prevention effect, while enabling the headrest body to be made thinner. In this device, a dilatant pad formed from a material with dilatant characteristics is disposed at a front portion of a headrest body. The pad is soft in normal circumstances, and so the occupant's head can be softly supported by the headrest body. However, the pad instantly becomes hard when load from the occupant's head is imparted to the front portion of the headrest body such as during an impact to the rear face of a vehicle, suppressing rearward head movement. Moreover, a thinner headrest body can be achieved due to being able to dispense with a foam body disposed at the front portion of the headrest body to secure the comfort of the occupant.

Abstract: A chair including a dynamically-flexible back and seat having a shape that adjusts to the movements of a user seated in the chair to enhance user comfort. Each of the back and seat has an air gap formed therewithin and a resilient frame or liner with a spring memory. The resilient liner is adapted to flex in response to compressive forces that are generated as the user slides his body back or from side-to-side in the chair. Accordingly, some of the chair back and some of the chair seat move into respective air gaps so that the shapes of the back and seat change to conform to the movements of the user. The air gaps also establish air flow ventilation channels which run laterally through the back and seat of the chair.

Abstract: A head restraint for a vehicle seat is provided, wherein at least one first part facing the head of the seat occupant can be moved linearly in the direction of the head of a seat occupant, wherein during the relocating motion, a relative motion between the first part and a second part of the head restraint arranged on a third part occurs, and a contact surface of the first part lies against a contact surface of the second part, and a contact surface is provided with a form-fit element, in particular a toothing arrangement. A method is provided for adjusting a head restraint.

Abstract: The present invention relates to a headrest having a headrest box which is mounted on at least one retaining rod and can be displaced in the X direction.

Abstract: The invention relates to a head support comprising a head support case that can be moved in relation to at least one stay bar in the X direction. The invention also relates to a locking system.

Abstract: The present invention relates to a crash-active headrest of a motor vehicle seat having a head part at least partially displaceable in the direction of the head of a seat occupant for comfort and/or safety purposes, and that can be locked in said position by means of a form-fit and/or frictional connection means, said headrest comprising means for transitioning the form-fit and/or frictional connection means from a locked into an unlocked position, characterized thereby.

Abstract: In a vehicle seat that has a seat back and a headrest attached to an upper portion of the seat back, the seat back has an upper frame member that extends in the width direction at an upper portion. The upper frame member and the headrest are structured such that a second distance is greater than a first distance. The first distance is a horizontal distance, between a front surface first portion of the headrest and a head of a head restraint measuring device (HRMD) that is attached to an H-point device seated in the seat, that has been measured by the head restraint measuring device. The second distance is a horizontal distance between the front surface first portion of the headrest and a front surface of the upper frame member that is positioned to the rear of the front surface first portion.

Abstract: A head and neck restraint system includes a vertical support and a head and neck restraint assembly coupled to the vertical support. The head and neck restraint assembly includes a pair of spaced members coupled to the vertical support. The pair of spaced members have a spring memory that permits movement of one of said members toward and away from the other member or movement of both of said members toward and away from each other. One or more spring biased wedges avoid the spring memory from returning one or both of the spaced members to a starting position after movement of one of the members toward the other member or movement of both of the members towards each other.

Abstract: An object is to provide a head and neck protection apparatus for vehicle which is simple in a structure and an operation principle and excellent in reliability and safety and can protect the head and neck part by alleviating not only a rearward impact received by the head part at a rear-end collision but also a forward impact. A head and neck protection apparatus for vehicle according to the present invention is attached to a vehicle seat, provided with a fixed frame having a mounting stay, a swing frame swingably connected with respect to the fixed frame, and a lock stopper for locking the swing frame with respect to the fixed frame, in which the swing frame has a rear-head part contact member with which the rear head part is brought into contact and a front-head part buffer member alleviating an impact of the front head part.

Abstract: A headrest including: a headrest body that supports a head portion of an occupant; a pair of side frame sections that supports the headrest body, the side frame sections extending along a seat height direction and disposed at a separation from each other along a seat width direction; and an inclined wall portion that is provided between the side frame sections, that is inclined towards a seat front-rear direction front side with respect to the side frame sections such that a lower end portion of the inclined wall portion is positioned further to the seat front-rear direction front side than an upper end portion of the inclined wall portion, and that bears load acting on the headrest body from a seat front-rear direction rear side.

Abstract: Headrests for motor vehicle seats. The headrests may include a fixed part, a moving part movable with respect to the fixed part from a rest position to an active position, with connection means connecting the fixed part and the moving part to determine the path and the position of the moving part. A drive device drives and moves the moving part with respect to the fixed part in the event of a crash. Movement of at least one portion of the moving part to a forward position with respect to the active position may be provided by a damping assembly. The damping assembly may also allow the backward movement to the active position after an impact of the user's head on the moving part, absorbing energy in the backward movement.

Abstract: A child safety seat includes a seat back and a head rest disposed on the seat back. When a child sits on the child safety seat, his back is against the seat back, and his head is against the head rest. The child safety seat also includes two sliding slot structures, formed on the seat back, and two sliding rods. The two sliding rod are connected to two opposite sides of the head rest corresponding to the two sliding slot structures and slidably disposed in the corresponding sliding slot structures. When the sliding rod is at a first restraining position of the sliding slot structure and the child safety seat shakes because of an impact, the head rest moves relative to the seat back, so that the sliding rod slides to a second restraining position sliding slot structure, which reduces possible harm to the head of the child.

Abstract: A head restraint for a vehicle seat is provided. The head restraint includes a basic body and a foam body surrounding the basic body. The foam body at a front has a contact surface for a head of a person using the vehicle seat, and a front surface of the basic body facing the contact surface has a vertically running concave curvature. The basic body in a region of an upper end of the contact surface comprises a ramp, which, with respect to a portion of the front surface of the basic body arranged below this upper end, is directed towards the front.

Abstract: A locking device is disclosed, such as for head restraint of a vehicle seat. The head restraint has a first subsection that may be displaced from a first position in a direction of displacement into a comfort position. Relative movement of a second subsection relative to the first subsection and/or relative to a third subsection is provided about a rotational axis substantially parallel to the direction of displacement. A blocking device and a sliding device are arranged between the first and second subsections and/or between the second and third subsections.

Abstract: Embodiments of the present invention may include a vehicle seat having a seatback and a headrest. The headrest has a first headrest portion, a second headrest portion and a headrest cover. The first headrest portion is connected to the seatback. The second headrest portion is provided nearer to a user seated in the seat than the first headrest portion. The second headrest portion is provided on the first headrest portion so as to be vertically movable. The headrest cover covers the first headrest portion and the second headrest portion. The headrest cover includes an elastic region. When the second headrest portion moves vertically with respect to the first headrest portion, the elastic region is deformed so as to allow movement of the second headrest portion.

Abstract: An active headrest adapted for use with a rear seat, including a translatable, conformable, or otherwise reconfigurable shell, an active material actuator disposed within and drivenly coupled to the shell, and preferably including a linkage system fixedly coupled to the seat and/or shell, wherein the actuator is operable to cause the headrest to achieve one of a plurality of achievable positions.

Abstract: Embodiments of the present invention may include a vehicle seat having a seatback and a headrest. The headrest has a first headrest portion, a second headrest portion and an elastic portion. The first headrest portion is connected to the seatback. The second headrest portion is arranged closer to an occupant than the first headrest portion. The second headrest portion is movable relative to the first headrest portion. The elastic portion generates an elastic force so as to restore the second headrest portion to an initial position when the second headrest portion moves from the initial position.

Abstract: A head rest for a vehicle seat includes: at least one first section that is oriented towards the head of the seat occupant, a second section, and a third section, wherein the second section is arranged essentially between the first and third sections. In the event of an accident, the first section can be displaced in the direction of displacement, due to the effect of a relative displacement of the second section from a working position into a safety position in the direction of the head of the seat occupant. The relative movement of the sections is a rotation about an essentially parallel rotational axis in the direction of displacement. A mounting of the first section in relation to the second section is provided during the relative displacement about the rotational axis. The first section comprises a first bearing surface and the second section comprises a second bearing surface.

Abstract: Disclosed herein is an apparatus for moving a headrest. The apparatus includes a stay rod, a fixing cam which is fixed to the stay rod and provided with a locking protrusion, a rotating cam which is provided on the fixing cam and has an insert depression into which the locking protrusion is inserted, a support spring which biases the rotating cam to the fixing cam, and a return spring which has a first end fixed in place and a second end connected to the rotating cam. The fixing cam has a spring support supporting the support spring. The rotating cam has a through hole which has a diameter greater than a diameter of the stay rod so that the rotating cam can be provided around the stay rod after passing through one end of the stay rod and a bent portion of the stay rod.

Abstract: A head-rest of a vehicle seat with a deformable central supporting body which forms an impact zone for the head of a vehicle occupant and into which the kinetic energy of the head in the event of an accident is admitted. On both sides of the impact zone the central supporting bodies are joined by lateral supporting surfaces which are extendable out of the plane of the head-rest in the direction of travel in order to laterally support the head. In order to avoid or at least to reduce the risk of a cervical-spine whiplash injury, it is proposed according to the invention that the head-rest comprises a device for absorbing the energy admitted into the central supporting body and for outputting the absorbed energy in order to activate lateral supporting surfaces.