Abstract: A headrest position adjustment device includes a capacitance sensor unit, and a drive motor unit. The capacitance sensor unit includes a plurality of electrode groups each configured by a plurality of sensing electrodes. The total electrode area of each of the electrode groups is switchable by a switching unit of a circuit unit between at least a total electrode area A and a total electrode area A+B. The total electrode area A is selected when the distance d between a head and a headrest is short, and the total electrode area A+B is selected when the distance is long. In this way, the sensitivity is changed depending on how long or how short the distance is. An estimated center position of the head is calculated based on capacitance values obtained, and thereby the position of the headrest is adjusted.

Abstract: Provided is a headrest that is capable of improving the rigidity of a headrest frame and preventing the leakage of a foaming agent upon integral foam formation of the headrest. The headrest, which is disposed on the upper part of a seatback and includes a headrest frame inside the headrest, includes a retaining portion of a headrest stay guide in the headrest frame. Further, the headrest is configured in a manner that a headrest skin is sandwiched between the headrest stay guide and the headrest frame.

Abstract: A headrest pole guide structure may include a main body configured to be fixed to a seat back and disposed inside a seat cover, the main body having an upper surface in contact with a lower surface of the seat cover and a hollow space so that a pole may be selectively inserted into the hollow space, and a head disposed above the main body, wherein the head may be fastened to the main body with the seat cover interposed between the main body and the head.

Abstract: A fixing device is provided for a headrest that fixes the headrest at a predetermined position in an unadjustable manner, even after a guide lock is attached or even after a seatback is formed. At least one groove portion is formed by cutting out in a headrest pillar, without inclination in the radial direction. The fixing device has a knob portion, a resin spring portion formed continuously to the knob portion, and an engagement plate arranged in the knob portion, the resin spring portion is formed to extend on one side of the knob portion therefrom, and is provided with a space portion for expanding to surround the headrest pillar. The engagement plate is installed in the knob portion, and is formed in such a manner that part of the engagement plate is exposed in the space portion.

Abstract: A chair includes at least one leg; a rotatable seat; a backrest; and a headrest including a clamping member having a yoke with two hollow cylindrical yoke arms; two hook members extending forward downward from both sides of the yoke respectively; and a lower well; a support including a hinge head pivotably disposed between the yoke arms; and two opposite fastening portions; a head frame including two rear bars and two joints frictionally, slidably fastened on the bars, each joint frictionally, pivotably secured to the fastening portion; a hooking member in the well and including two hook elements curved upward forward wherein the hook elements cooperate with the hook members to releasably mount the headrest on the backrest; a first hinge element pivotably disposed in one yoke arm and includes a lever; and a second hinge element moveably disposed in the other yoke arm and the hinge head.

Abstract: A seat assembly having a headrest disposed on a support post. The headrest has a front shell and a rear shell. The front shell and rear shell may be configured to move in unison such that the front shell moves a greater distance than the rear shell.

Abstract: A protective headrest for land vehicles provides ergonomic support and protection against injury to a passenger's head and spine. The protective headrest has a back wall, sides, top and front wall. The front wall includes a head support segment co-joined and adjacent to a spine support segment. The head support segment has a semi-spherical concave curvature adapted and shaped to correspond with a passenger's head. The spine support segment is substantially shaped as a convex curvature adapted and shaped to correspond with the passenger's spine region at the neck-head interface. The spine support segment is located proximate and adjacent to the head support segment on a vertical plane. Preferably, the headrest includes a memory foam or other moldable insert within the head support segment and/or the spine support segment.

Abstract: A motor vehicle seat comprising an adjustable part, a fixed part, and an adjustable mechanism comprising a traveling wave piezoelectric motor having a rotor and a stator, the stator comprising two distinct power terminals connected to an electronic control unit adapted to operate according to three operating modes comprising: a locked operating mode in which the power terminals are not supplied power; a motorized operating mode in which two AC voltages are applied to the two power terminals; and a free operating mode in which an AC voltage is applied to one power terminal while the other is not supplied with power.

Abstract: A vehicle head restraint assembly has a guide member mounted to a vehicle seat back. A head restraint is mounted to another guide member that has notches and is mounted to the first guide member for movement in a fore and aft direction. A biasing member biases a locking mechanism that is mounted to the first guide member into engagement with the notches. A first actuator is mounted to the first guide member for actuation in a lateral direction from one lateral side such that linear actuation of a first actuator compresses the biasing member to disengage the locking mechanism from the notches to permit adjustment of the fore and aft position of the head restraint. A second actuator is mounted to the first guide member for actuation in a direction perpendicular to the lateral direction and cooperates with the first actuator for actuating the first actuator.

Abstract: A patient procedures chair is provided with a system that permits ready interchangeability of patient headrests with ease of positioning and locking in position while at the same time guarding against inadvertent axial removal.

Abstract: The invention relates to a head restraint for a vehicle seat, in particular for a motor vehicle seat, wherein the head restraint has a cushion part facing the head of a seat occupant, a main body, and a comfort adjustment device, wherein in a usage situation of the head restraint the cushion part can be adjusted relative to the main body from a first position that is farther from the head of the seat occupant to a second position that is closer to the head of the occupant by means of the comfort adjustment device, wherein the cushion part can also be adjusted from the second position in the direction of the first position by means of the comfort adjustment device, wherein this requires a front extreme position of the cushion part to be set.

Abstract: A vehicle seat headrest assembly (20) includes a headrest (21) having a rear headrest portion (28) with a housing (29) mounted on vertical posts (26) for vertical movement and also includes a front headrest portion (30) having a housing (31) movable longitudinally in forward and rearward directions by a support linkage (46) under the control of a rack and pinion mechanism (62). A first helical spring locking clamp (44) permits upward adjusting movement of the headrest but normally prevents downward movement, and a second helical spring locking clamp (72) permits forward movement of the front headrest portion housing (29) while normally preventing rearward movement. An actuator (36) releases the first and second helical spring locking clamps (44 and 72) to permit downward movement of the headrest (21) and rearward adjustment of the front headrest portion (30) housing (31).

Abstract: A headrest (10) for a vehicle seat has at least one base (11), such as a support rod or the like. A main body (12) is held on the base (11). A support part (13) having a head support surface (44) can move relative to the main body (12) forward in the forward direction (x) toward the back of the head of the vehicle occupant and back in the rearward direction (z). The main body (12) is movable on the base (11) and can be shifted by at least one rotatable transmission element (K1; 28, 30) in the forward direction (x) and in the rearward direction (z). At the same time, the support part, which moveable in the same direction with the main body (12) in the forward direction (x) and the rearward direction (z), is pivoted on the same rotatable transmission element (K1; 28, 30).

Abstract: A head support for a backrest of a motor vehicle seat, which can be folded out of an upright use position into a cargo position directed in driving direction. The head support is mounted to be foldable toward the front side of the backrest between an upright operative position is in the use position, and a folded down inoperative position when the backrest is in the cargo position, around a horizontal head support spindle of a holder arranged at the backrest and carries the head support the head support spindle extends transverse to the driving direction. The holder is lowered completely or partially into a lowered position in the backrest in the inoperative position of the head support and can be raised from the lowered position into the raised position of the operative position.

Abstract: A head restraint assembly includes a post assembly which has a first post section, a second post section, and a cross member section connecting the first post section and the second post section. The first post section and the second post section are adapted to engage a vehicle seat. The head restraint includes a bun moveably attached to the post assembly, a first gear, and a motor that rotates the first gear in a clockwise or counter-clockwise direction. Rotation of the first gear drives a second gear which drives a third gear. Rotation of the second gear in a first direction causes movement of the bun to a tilted position while movement of the second gear in a second direction causes movement of the bun to an upright position.

Abstract: Folding assemblies for vehicles are described. In one aspect, a folding headrest assembly for a vehicle seat comprises a headrest having a frame. A pivot joint is coupled to the frame for rotatably supporting the headrest with respect to the vehicle seat between an upright position and a folded position. A support rod extends from the pivot joint and is configured for coupling to the vehicle seat. The headrest receives the pivot joint and a portion of the support rod, and the headrest defines an opening configured to provide clearance for the support rod as the headrest is rotated about the pivot joint relative to the support rod. A closeout member coupled to the support rod circumscribes at least an exposed portion of the pivot joint that is aligned with the opening of the headrest.

Abstract: It is described a neck rest where the cushion 1 is rotatably and eccentrically mounted on a mounting stay 2. The mounting stay is attached in a cushion by means of sector shaped hinges 3. The friction between the stay and cushion can be regulated by means of a wheel.

Abstract: A headrest includes a front casing, a rear casing fixed to the front casing, and a headrest support fixed between the front casing and the rear casing. The headrest support includes a metal plate and a stationary rod. The metal plate is fixed to the top of the stationary rod and clamped between the front casing and the rear casing, and the stationary rod is fixed to the rear casing and extends downward out of the rear casing. The headrest has a certain degree of pressure resistance and softness at the same time, and it retains its original profile after long periods of use.

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 headrest device comprises a headrest body which includes a headrest rear portion supported with respect to a seatback of a seat on which a passenger of a vehicle sits, and a headrest front portion that is movable within a predetermined range from a fully closed position that is closest to the headrest rear portion to a fully open position that is farthest from the headrest rear portion; a detection unit which detects a running state or an operation state of the vehicle; a prediction unit which predicts a possibility of a rear vehicle collision with the vehicle on the basis of the running state or the operation state of the vehicle detected by detection unit; and a control unit which controls, in a case in which the possibility of the rear vehicle collision is predicted by the prediction unit, movement of a position of the headrest front portion so that a backset becomes smaller than a backset at the time of the prediction, the backset being a horizontal distance between the headrest front portion and a head

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 head restraint system includes a first support arm formed of a flexible material. The head restraint further includes a first clamp arm coupleable to a child seat. A first joint for coupling the first support arm to the first clamp arm is configured to allow actuation of the first support arm between a first position extending horizontally across a portion of a child's forehead and a second position disposed away from the child's forehead.

Abstract: To perform highly precise position adjustment for head restraint in short time regardless of distance between head restraint and human body and head shape. Head restraint position adjusting device 100 includes capacitance sensor unit 10 and drive motor unit 30. Capacitance sensor unit 10 includes first and third sensing electrodes 11 and 13 and detection circuit 20. First sensing electrode 11 is arranged in an upper portion of front portion of head restraint 43 and senses capacitance between itself and vicinity of parietal region 49a of head 49 of human body 48. Third sensing electrode 13 is arranged in lower portion of front portion and senses capacitance between itself and any portion of human body 48 other than vicinity of parietal region 49a.

Abstract: A head restraint assembly for a vehicle seat has a head restraint post adapted to be mounted to the vehicle seat. A support member is coupled to the head restraint post. The support member having a plurality of attachment receptacles to mount the head restraint post to one of the plurality of attachment receptacles. A compressible pad member is mounted to the support member. A convex outer surface provides support for a head of an occupant. The support member is mounted to head restraint post at one of the plurality of attachment receptacles positions the compressible pad at a distance from the convex outer surface.

Abstract: A rear headrest mechanism used in the motor vehicles enables the passenger to bring said headrest to use position by discomforting the back of the passenger in the non-use position.

Abstract: A protective headrest for land vehicles provides ergonomic support and protection against injury to a passenger's head and spine. The protective headrest has a back wall, sides, top and front wall. The front wall includes a head support segment co-joined and adjacent to a spine support segment. The head support segment has a semi-spherical concave curvature adapted and shaped to correspond with a passenger's head. The spine support segment is substantially shaped as a convex curvature adapted and shaped to correspond with the passenger's spine region at the neck-head interface. The spine support segment is located proximate and adjacent to the head support segment on a vertical plane. Preferably, the headrest includes a memory foam or other moldable insert within the head support segment and/or the spine support segment.

Abstract: A head rest position adjusting device 100 has a capacitance sensor unit 10 and a drive motor unit 30, and the capacitance sensor unit 10 has plural detection electrodes 11 to 15. Each detection electrode 11 to 15 are formed in a rectangular strip having a long side arranged in a width direction intersecting with a height direction of a head restraint 43 at the front face side thereof, and are arranged in such a way that the long sides are aligned along the height direction. A detection circuit 20 has plural capacitance detection circuits 21 to 25 connected to the detection electrodes 11 to 15, respectively, and an arithmetic processing circuit 28, and the drive motor unit 30 has a motor drive circuit and a drive motor.

Abstract: A vehicle seat includes a seatback, a headrest body, a stay and a locking member. The seatback is provided on a floor of a vehicle body. The headrest body is provided above the seatback. The stay extends downward from the headrest body into the seatback. The locking member, provided to the seatback and engaging with the stay at a specific position in a longitudinal direction of the stay, engages with the stay at a substantially longitudinal center of the stay when the headrest body is positioned at a lowest position.

Abstract: The invention relates to a seat that comprises: a base; a sitting portion and a back support mounted on the base; a back including a shell and a padding attached to the shell; at least one attachment point provided with attachment means for attaching the back holder to the back; a headrest; and a headrest holder. The seat further includes: a bearing profile section adapted for attachment to the top of the shell of the back; and an arm with a planar aspect extending between the padding and the shell of the back, wherein said arm extends down to the attachment point(s) and is held rigidly by the attachment means of the back to the back holder.

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: A motor-vehicle headrest has a head part and a base part, the latter being surrounded by and shiftable on the head part in a predetermined direction. A pair of inner racks on the base part are directed oppositely outward toward the head part and each have an array extending in the direction of gear teeth. Similarly, a pair of outer racks on the base part are directed toward each other inward, confront the inner racks, and are formed with respective arrays extending in the direction of gear teeth. Respective gears each mesh with a respective one of the outer racks and the respective inner rack so that on movement between the inner and outer positions the gears roll between the respective racks. A play compensator between one of the racks and the respective part biases the racks and gears into tight engagement with one another.

Abstract: An adjustable headrest that provides both support and comfort to the user and one that can be used in connection with various types of passenger vehicles. The adjustable headrest includes novel slide assemblies that permit multiple height adjustments of the headrest. More particularly, the headrest of the invention can be moved from a first lower position to a second intermediate position and finally to an uppermost position.

Abstract: A headrest for a vehicle seat, in particular for a motor vehicle seat, is proposed. The headrest includes a padded part facing the head of a seat occupant, a basic part and a comfort-adjustment device. When the headrest is in use, the padded part can be adjusted by the comfort-adjustment device relative to the basic part from a first position, in which it is further away from the head of the seat occupant, into a second position, closer to the head of the seat occupant. The comfort-adjustment device has two control elements which can be set in a locking position and in an unlocking position, the movement of the control elements being synchronized.

Abstract: The invention relates to a headrest that is retained on a vehicle seat by at least one support rod (12) and that has at least one adjustment part (13) that can be moved relative to the back rest by at least one drive mechanism (14, 15, 16, 22) having at least one first drive (14, 15) that is fixed to the adjustment part and a second drive (16, 22) that is fixed to the back rest. The special feature is that the drive (14, 15, 16, 22) has an overload safety device (17) that can be moved from a starting position into a release position when a maximum force acting on the adjustment part (13) is exceeded, and, in the release position, the drive (14, 15, 16, 22) is at least partially relieved of the force acting on the adjustment part (13).

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: A dental patient seating apparatus includes a dental chair having a chair body with a head rest receiving slot therein. The dental patient seating apparatus also includes a head rest having a head support to receive a patient's head thereagainst, and a coupling projection extending downwardly from the head support to be received in the head rest receiving slot for coupling to the dental chair. The dental patient seating apparatus includes a tool staging arm coupled to the head support.

Abstract: A head restraint includes a base element on which two wing elements are mounted by at least one hinge so as to rotate about a vertical axis. The hinge has a pin and a recess which are frustoconical. The support structure of each wing element is in two parts.

Abstract: A vehicle seat is provided comprising: a seat back frame having a side frame; a headrest for supporting a head of a seat occupant; a load receiving member disposed behind the seat occupant and movable rearward in response to a load from the seat occupant; and a link member mounted to the seat back frame and rearwardly movable; wherein: a rearward movement of the load receiving member moves the link member rearward and reduces a distance between the head of the seat occupant and the headrest; the load receiving member is provided with a first through-hole and a second through-hole; and the first through-hole and the second through-hole are disposed in a same horizontal plane.

Abstract: In a latching device for a head restraint, a locking element is movably mounted in a carrier device. The locking element can be moved from a locked position into an unlocked position by actuation of an actuating device. The latching device is movably mounted with respect to a retaining rod. In the unlocked position, the locking element allows the latching device to be moved with respect to the retaining rod, while in the locked position the locking element engages in at least one cut-out of the retaining rod for latching the latching device with respect to the retaining rod.

Abstract: A head rest has a head rest cushion which is provided on at least one holding rod. The holding rod is supported in a holding member that is fixed to the frame of a vehicle seat backrest by a connecting member.

Abstract: The invention relates to a method for producing a head restraint, in particular a motor vehicle head restraint, wherein the head restraint has a cover and a foam material, wherein the foam material fills out the cover at least in some areas, wherein the method comprises the following steps: producing a prototype mold, wherein the prototype mold comprises at least two parts, wherein when the parts of the prototype mold are assembled, the prototype mold has an inner surface that faces the interior of the prototype mold and an outer surface, producing the cover, assembling the parts of the prototype mold in such a way that the cover is arranged in the interior of the prototype mold, and introducing the foam material into the interior of the cover, wherein the foam material is at least partially liquid when said foam material is introduced into the interior of the cover.

Abstract: The invention relates to a head restraint for a vehicle seat having a head restraint body and at least one support element, wherein a covering is provided at least in sections on the outside of the head restraint body, which forms a surface of the head restraint. According to the invention, the cover is formed from at least one front section and one rear section which can be coupled to each other in a balloon or bag-like manner by means of at least one connecting seam, wherein a profile element is incorporated in the at least one connecting seam at least in sections in a force-fit and/or form-fit manner, forming a recess, protrusion and/or edge on the surface of the head restraint. The invention further relates to a method for producing a head restraint.

Abstract: Disclosed is a headrest fore-aft position adjuster including a displaceable body which receives load of an occupant's head and which displaces in a fore-aft direction with respect to a headrest pillar and a lock mechanism which locks and unlocks the displaceable body at a plurality of positions along the fore-aft direction, and the lock mechanism includes an engaging part which displaces in the fore-aft direction integrally with the displaceable body, a plurality of engaged part which is provided along a trajectory of the engaging part and which the engaging part is engaged with in a locked state and the engaging part is configured to engage with the engaged parts from a lateral position.

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 head restraint for a vehicle seat includes a first subsection facing the occupant's head, and is displaceable due to application of a predetermined force. A third subsection includes a central hub portion that supports the second subsection. The second subsection is arranged between the first subsection and a third subsection, and is mounted to the central hub portion of the third section and the first second and third subsections are rotatably displaceable about an axis of rotation that is parallel to the direction of displacement (C). A blocking device includes a toothed portion complimentarily engaged with a spacer device on the third subsection and having a resilient member preventing engagement of the toothed portion by the spacer device when the first subsection is not subjected to the application of the predetermined force, and also controls movement of the first subsection counter to a direction of displacement.

Abstract: An integrated adjustable headrest includes a first curved head support and a second curved head support. Each of the curved head supports is secured to an adjustable rail, which itself is connected to the vertical track of a respective interior compartment. The interior compartment is located near the top of a chair, near a headrest section, inside a cavity. The curved head support can slide in and out of the adjustable rail slot. When extended, a person can rest their head on the curved head support. The curved head supports are also tiltable and extendable by manipulating the interior compartments or the adjustable rails. Locking mechanisms allow a user to adjust both the extension of the curved head supports and the angle of the adjustable rail slots. Once adjusted, the locking mechanisms secure the curved head supports in a desired position.

Abstract: A headrest and a method for manufacturing a headrest are proposed, wherein the headrest is provided, in particular, as a motor vehicle headrest, wherein the headrest has a cover and a foamed material, wherein the foamed material fills the cover at least in certain areas, wherein the headrest is manufactured in such a way that the foamed material is at least partially liquid at the time when the foamed material is introduced into the cover, wherein the cover has at least one closure element, wherein an opening in the cover which is present before the foamed material is introduced can be closed off by means of the closure element.

Abstract: The invention provides a headrest for a dental treatment chair and a dental treatment chair wherein discomfort due to noise generated from dental treatment instruments can be reduced and communication between a dentist and a patient can be ensured. The headrest for the dental treatment chair and the dental treatment chair comprise a back head supporting member 91 for supporting a back of the head of the patient during dental treatment and ear supporting members 92 and 92 which can be bent in directions to cover ears of the patient at both ends of the back head supporting member 91. The ear supporting members 92 and 92 or the back head supporting member 91 has sound output sections 93 and 93 each for outputting a sound from a sound source, and the ear supporting members 92 and 92 have a sound collecting section 94 for collecting sounds in a surrounding environment. Acoustic filters 95 and 95 cut off frequencies higher than 8 kHz from a sound signal collected by the sound collecting section 94.

Abstract: A guide sleeve for a vehicle seat having a body portion adapted for insertion into a horizontal support of a vehicle seating assembly. The body portion includes a plurality of engagement members that extend radially outward from a center of the body portion.

Abstract: An airway positioning device facilitates the maintenance of a patent airway by correctly positioning a patient's head during anesthesia. A flat base supports a supine patient's head. A pair of rails slope downward from a first end of the base to a second end of the base. A track mounts with at least one of the rails. At least one adjustable support arm movably mounts with the track via a locking coupling device at an end of the arm distal to the patient's head. A patient engaging member mounted with an end of the arm proximal to the patient's head supports the patient's head in a desired position during an operation or procedure.