WO2011020919A1 - Appuie-tête - Google Patents

Appuie-tête Download PDF

Info

Publication number
WO2011020919A1
WO2011020919A1 PCT/EP2010/062199 EP2010062199W WO2011020919A1 WO 2011020919 A1 WO2011020919 A1 WO 2011020919A1 EP 2010062199 W EP2010062199 W EP 2010062199W WO 2011020919 A1 WO2011020919 A1 WO 2011020919A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
headrest
body portion
front surface
person
Prior art date
Application number
PCT/EP2010/062199
Other languages
English (en)
Inventor
Nathan Sparshott
Luke Pearson
Tom Lloyd
Christopher Vernall
Andrew Vernall
David Ferry
Original Assignee
Virgin Atlantic Airways Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Virgin Atlantic Airways Limited filed Critical Virgin Atlantic Airways Limited
Publication of WO2011020919A1 publication Critical patent/WO2011020919A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/062—Belts or other passenger restraint means for passenger seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/868—Head-rests movable or adjustable providing a lateral movement parallel to the occupant's shoulder line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/885—Head-rests provided with side-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0606—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with privacy shells, screens, separators or the like

Definitions

  • the present invention relates to a headrest and more particularly to a headrest for use in a vehicle, especially a passenger aircraft, for providing improved support and comfort to the head and neck. It is known to provide a headrest on a seat to provide comfort to the occupant during periods of rest or sleep. If the seat is located within a vehicle, then the need to provide comfort is especially important because the occupant may be in the seat for a long period of time; for example, during a long journey.
  • a basic headrest is often merely an extension of the seat itself with the backrest tapering inwardly at the sides to provide a narrower headrest portion with a surface against which the occupant can rest their head.
  • the headrest usually has a substantially flat surface, and so when an occupant places their head against that flat surface the head is free to fall to either side.
  • the occupant is forced to support and balance the weight of their head, in rest and sleep, in an almost upright position.
  • the occupant will naturally be constantly contracting the neck muscles to stop the head from rolling to either side. This can result in the occupant suffering from neck pain and discomfort, especially over a prolonged period of time.
  • the neck muscles will relax. This relaxation of the neck muscles may result in the head falling to either side on the flat surface and the occupant being suddenly awoken as the head falls. This relaxation and then sudden contraction of the neck and head muscles can, again, cause pain and discomfort to the occupant.
  • the seat's backrest is capable of reclining, in an attempt to improve relaxation for the occupant, and provide additional comfort, then the headrest will also move back with the backrest into the reclined position.
  • the movement of seats in multiple-occupant vehicles, such as passenger aircraft, is often severely restricted, and the backrest only has a small angle of recline. This small angle of recline takes little or no pressure off the neck and head muscles which means that the occupant is still required to balance the complete weight of their head in rest and sleep. The occupant will again be constantly contracting the neck muscles and will suffer from neck pain and discomfort, especially when the journey is over a prolonged period of time.
  • An occupant of a seat in a passenger vehicle will sometimes attempt to provide additional support for their head with the use of pillows placed behind the head and/or rested up against a nearby surface, with the weight of the head holding the pillow in place.
  • the placement of the pillow is often difficult when the seat is used in a limited space environment. Positioning the pillow is difficult because it is usually only possible to rest the pillow behind the head, against or on a fellow passenger or against a window or wall of the vehicle. Furthermore, when the pillow is only held in place by the weight of the head, which is itself unsupported, movement of the head may result in the pillow falling out of position and the occupant awaking suddenly and/or suffering from pain and discomfort. In addition, the head is usually heavier than the support material in the pillow which becomes crushed by the weight of the head. This means that the pillow can only provide cushioning and cannot provide any support to the weight or position of the head. With a lack of support the head is still able to fall in to an unnatural position to the side, putting pressure on the neck, and the head is still able to fall forward, causing the above- mentioned awakening and/or pain and discomfort after long periods of time.
  • Additional supports built into the headrest which are either static or can be actuated by the occupant.
  • additional actuated supports include lateral pullout supports, where sections of the headrest or seat back itself can be pulled out from the headrest surface to provide extra support for the occupants head.
  • An example of such lateral supports can be seen in GB 2317333 A which describes two extendable elements, initially retained in a headrest, which are pulled out to extend laterally relative to the headrest.
  • Further examples of additional actuated supports include side portions which rotate between a lower horizontal orientation and a raised vertical orientation, such as described in US 5370446 A.
  • US 2006/0181117 Al discloses a headrest assembly for a motor vehicle seat having two sections that can be assembled to form the headrest and mounted on a support.
  • One of the sections has three partial segments; the partial segments are connected to the partial segments by respective film hinges.
  • FR 2929185 Al discloses a headrest for a motor vehicle seat which comprises a body portion housing a retractable, curved support that can be deployed laterally to one side or the other according to the choice of a user of the seat to provide a complementary surface when the user wishes to drowse or sleep. In the retracted position, the support is almost entirely contained within a housing within the body portion.
  • these types of additional actuated supports tend to be have small contact surfaces and can only be deployed in a limited number of support positions. Furthermore, they are generally extended or rotated from the sides of the headrest and are, therefore, located at the sides of the headrest. When the occupant wishes to rest their head against such a support they must either move their head and body to the side of the seat or they must rotate their head downwardly to the side to rest against the support. When the occupant moves their head and body their shoulders will generally move out of the seatback area and the occupant is forced to twist their body inwardly on the seat causing discomfort over a prolonged period of time.
  • JP 58-152925 U discloses an alternative solution in which a headrest for a reclining seat having a generally concave front surface can be rocked on a pivot from side to side by means of a motor.
  • JP 61- 75758 U Yet another alternative solution, suitable for use in a motor vehicle, is disclosed by JP 61- 75758 U in which the position of a headrest can be adjusted relative to a seat to which it is fitted in order to provide lateral displacement of the headrest.
  • Headrests also suffer from the problem that their position is sometimes fixed with respect to the seatback and does not therefore allow for variations in height of the head of the occupant.
  • some headrests have been proposed which allow adjustment to the height of the headrest vertically relative to the seatback, as described for example in WO 09/025541 A.
  • the number of positions in which the headrest can be fixed along the path of movement can be limited.
  • the headrest can suffer from inadvertent raising or lowering if the weight of the head is too great or through movement of the vehicle. Actuating the vertical movement of the headrest can also require the user to use both hands, with the occupant being required to turn around in their seat, or leave the seat entirely.
  • movement of the headrest in the vertical direction away from the seatback may lead to a further restriction to the view of any passengers seated behind.
  • a headrest can also function as an important safety feature; this is especially the case for headrest on seats in fast moving vehicles.
  • a headrest can act to restrict the movement of the occupant's head, relative to the occupant's body, during normal, exaggerated and excessive movement of the vehicle, or when the occupant moves back in to the seat after being restrained by seat belts or airbags.
  • a lack of head support can result in injury to the occupant such as whiplash and whiplash-associated disorders (WAD). This need to restrict the movement of the head is important when the seat is used in a fast moving vehicle such as an aircraft, train, bus, car, etc.
  • WAD whiplash and whiplash-associated disorders
  • An aircraft's normal journey would include fast acceleration during take off, accelerating or decelerating speed during the flight, excessive and random movement during turbulence, and deceleration during landing. In extreme cases or emergencies the movement may be even more exaggerated and the need to provide safety even more important.
  • headrest attempt to provide lateral support for the head for safety reasons to prevent sideways movement of the head during such excessive movements.
  • An example of this type of headrest is the c-shaped lateral support, which may be fixed to the seat, and tightly encloses the occupant's head, as shown in US 1744364 A.
  • US 5211696 A discloses a headrest for a vehicle which has a cut-out that is shaped to receive a pillow having a concave front with sides providing lateral support for the head.
  • the pillow has a self-adhering fastener fitted to its back which is mateable with a fastener in the cut-out.
  • the pillow partially wraps around the user's head and is located at the centre of a seat for supporting the head in a substantially centred (non-leaning) position.
  • the pillow is not connected to the headrest via a structural element and would therefore be unsuitable for use on an aeroplane.
  • headrest are more commonly used in simulators, which undergo excessive movement, or in situations where the occupant cannot support the weight of their own head. Often movement of the head is severely restricted by the use of a tightly fitted headrest cushion which is not particularly comfortable for the occupant because the headrest seeks to restrain movement of the head rather than to cushion it.
  • JP 2000-38070 A discloses a headrest for a motor vehicle having a frame that is deformable and extends between stays.
  • the frame is connected to the stays by means of coupling members that are rotatable around and axially movable. By varying the rotation angles and vertical positions of the coupling members, the frame is held in a given shape and the head rest is formed into the desired shape.
  • a headrest can also incorporate features to provide support, comfort and safety for the neck.
  • the neck bears all the weight of the head and has no support.
  • the additional actuated supports mentioned above merely provide a lateral resting position for the head which leaves pressure on the neck. Over long periods of time, this pressure on the neck leads to the pain and discomfort discussed above.
  • Some headrests do attempt to provide neck support, but they are usually either so small as to be tokenistic and inadequate, or they are too large which forces the head into an unnatural position, which is uncomfortable over a period of time, and, when used in multi-passenger vehicles, can severely restrict the view of occupants in any seats behind.
  • a headrest assembly for a seat, which headrest assembly comprises a headrest body portion having a concave front surface for supporting the head or neck of a person using the seat and a convex rear surface, said front surface having two opposing side regions; and means for attaching the headrest body portion movably to the seat, such that the two opposing side regions of the front surface protrude forwardly with respect to the seat for supporting respective opposite sides of the person's head or neck; wherein the attaching means comprise an elongate arcuate track on the rear surface of the body portion and a track follower that can be connected to a seat, thereby to permit movement of the headrest body portion with respect to the seat such that the front surface can be rotated relative to the seat for adjusting the extent to which the side regions protrude in the forwards direction.
  • the headrest body portion may comprise a unitary body member having a single, continuous front surface for supporting the head or neck of a person using a seat in all positions, the front surface comprising the two opposing side regions and a central region therebetween, with no substantial joins or discontinuities between the two side regions and central region that are provided by the same body member.
  • the headrest assembly of the invention differs from known headrest assemblies that comprise deployable lateral supports that are movably connected to a fixed central body portion or the like.
  • the headrest assembly of the invention may thus comprise a single head-supporting component, namely said headrest body portion; the head-supporting means of the assembly consist essentially of said headrest body portion.
  • the headrest body portion can be fixedly secured to the seat by means of the attaching means which provide a structural connection between the headrest and the seat, rendering the headrest suitable for use on an aircraft as well as other vehicles.
  • the headrest body portion is rotatable relative to the seat between a centre position, in which the two side regions of the front surface of the body portion extend forwardly of the seat to substantially the same extent such that the headrest body portion is arranged to support the head or neck of a person using a seat in a normal centred position, and two opposite, fully rotated positions in which one or other of the side regions protrudes forwardly of the seat to its maximum extent for supporting the side of the person's head in a sideways inclined resting position.
  • the headrest body portion provides the sole means for supporting the person's head, and it is not substantially covered or housed by or used in conjunction with any other head-supporting elements.
  • the headrest assembly of the invention may consist essentially of the headrest body portion and said attaching means.
  • the headrest of the present invention has forwardly protruding side regions which a person using the seat can use to support the side of his or her head or neck for relaxing or sleeping. Such side regions are continuous with the central region of the front surface of the headrest body portion or member which is generally used to support the person 1 s head in a normal upright position.
  • the capability of the headrest of the invention to support the side of the person's head or neck comfortably and stably represents a significant step forward in the art and, especially when applied to a seat for a passenger vehicle, significantly increases the chance of a passenger using the seat relaxing or sleeping well during the course of a journey, while still satisfying the applicable safety standards.
  • the positions of the side regions can be adjusted as desired by the person using the seat in order to provide maximal comfort and support.
  • the present invention also provides a vehicle seat assembly comprising a plurality of adjacent seats and a common supporting frame for supporting the seats off the floor of a vehicle, each of the adjacent seats comprising a headrest assembly according to the invention, the arrangement being such that the headrest body portions of a pair of neighbouring seats can be rotated in opposite directions to one another relative to the respective seats to form an area of increased privacy for the occupants of the pair of seats.
  • the concave front surface and convex rear surface of the headrest body portion may correspond generally to one another, such that the headrest body portion or member has a generally arcuate shape in cross-section.
  • the radius of the front surface may be the same or different from the radius of the rear surface. In some embodiments, the radius of the rear surface may be shorter than the radius of the front surface.
  • the headrest body portion may be substantially "banana shaped" in cross-section.
  • the convex rear surface may have two opposite lateral ends, each of which is juxtaposed a respective one of the side regions of the front surface.
  • Said arcuate track may extend in a direction between said opposite lateral ends.
  • said arcuate track may extend around a major proportion of the rear surface of the headrest body portion.
  • the track may extend around at least 40%, 50% or 60% of the rear surface between said opposite lateral ends.
  • said track may be substantially circular in cross-section, such that movement of the headrest body portion relative to the track follower results in substantially no translational (sideways) movement of the headrest body portion relative to the seat in the plane of the track, but substantially only rotation of the body portion.
  • the track may be shaped as appropriate.
  • the headrest body portion may comprise arcuate backing plate having a convex rear surface and a concave front surface and a layer of foam or other padding material attached to the concave front surface.
  • the layer of foam or other padding material and optionally at least part of the backing plate may be covered by a fitted cover of a fabric or leather or leather-like material.
  • the track follower may form part of a bracket assembly that can be mounted to the seat.
  • the headrest body portion When attached to a seat therefore the headrest body portion may be moved with respect to the bracket assembly, such that the bracket assembly slides along the track, owing to the movement of the headrest body portion relative to the bracket assembly.
  • This movement along the arcuate track produces rotational movement of the headrest body portion.
  • the track and track follower allow for continuous adjustment of the position of the headrest body portion along the length of the track.
  • the track and follower may be configured to allow the headrest body portion to be rotated smoothly relative to the seat.
  • the engagement of the track follower in the track allows the position of the headrest body portion to be adjusted relative to the seat manually by a person using the seat; but is sufficiently tight to prevent free movement of the headrest body portion relative to the seat, so that the headrest body portion will remain in the desired position unless adjusted manually.
  • the track and track follower may comprise a detent to define a centre position in which the track follower is positioned substantially at the midpoint of the track, with the headrest body portion being positioned generally symmetrically with respect to the seat.
  • the concave front surface of the headrest body portion may define an arc of at least 45°, preferably at least 60 - 90°.
  • the concave front surface may define an arc of up to 180°.
  • the front surface may extend along an arc in the range 100-150°, preferably 110-130°, e.g. about 120°. Therefore, in some embodiments the headrest body portion can have a generally semi-circular shape.
  • the rear surface may define an arc of at least 120°, preferably at least 150°, and typically about 180°.
  • the track and track follower may be configured to permit rotation of said front surface through an arc of at least 30°, or 15° to each side of a centre position in which the side regions protrude forwardly to a substantially equal extent.
  • the attaching means may permit an even greater degree of rotation of said front surface, e.g., 40° or more.
  • the attaching means may permit rotation of said front surface by more than 50°, 60°, 70°, 80° or 90°.
  • said attaching means may further permit translational movement of the headrest body portion relative to the seat in a direction generally parallel to the neck of a person using the seat for adjusting the position of the headrest body portion according to the height of a person.
  • said bracket assembly may comprise one or more sliders that are configured to engage slidably in one or more corresponding linear tracks fitted to the seat to permit translational movement of the bracket assembly relative to the seat, said one or more linear tracks being oriented substantially orthogonally to the arcuate track in a direction generally parallel to the neck of a person using the seat, whereby the position of the headrest body relative to the seat can be adjusted according to the height of the person.
  • the seat assembly of the present invention may also allow vertical adjustment of the position of the headrest assembly relative to a seat to which it is fitted in order to accommodate persons of different heights. It will be understood that by
  • vertical in this context is meant in a direction generally parallel to the neck and spine of a person using the seat, or the up-down direction of the backrest, and not vertical in the strict geometric sense.
  • the seat to which the headrest assembly of the invention may be fitted may in some embodiments be reclinable; and the actual direction of adjustment of the position of the headrest will vary according to the angle of recline of the seat.
  • the headrest body portion has a top and bottom and the front surface is wedge shaped, tapering in a forwards direction from the top to the bottom of the body portion such that the front surface extends into the nape of the neck of a person using the seat.
  • said front surface may taper progressively from the top to the bottom to provide a gradual slope.
  • the wedge-shaped body portion may be configured to support the neck and the base of the person's skull.
  • the front surface of the headrest body portion may be "tear drop” shaped, such that the body portion has a forwardly protruding, bulbous lower region and a thinner upper region.
  • the front surface of the headrest may have a slope in the range 1 in 5 to 1 in 2, e.g., about 1 in 3.
  • the sloped front surface of the headrest body portion may also be slightly concave in vertical cross-section. It has been found that such a shape of the headrest body portion advantageously provides good support for the head and neck of persons using the seat of a range of different heights.
  • the front surface of the headrest body portion may be configured such that it tapers forwardly more in said central region between the side regions than at said side regions. In this way, the concave front surface may have a deeper curve towards its top than towards its bottom.
  • the concave front surface may, in some embodiments, the generally circular cross-section, with a smaller radius at the top than at the bottom.
  • the concave front surface may define a central pad that is positioned generally symmetrically intermediate the side regions, towards the bottom of the front surface.
  • the wedge-shaped headrest body portion may also be employed in other headrests that do not protrude forwardly at the sides; and accordingly in a different distinct aspect of the present invention there is provided a headrest for a seat, which headrest has a top and bottom and a front surface for supporting the head or neck of a person using the seat, the front surface being wedge-shaped, tapering in a forwards direction from the top to the bottom of the headrest, such that the front surface extends into the nape of the person using the seat.
  • the wedge-shaped headrest may support the neck and the base of the person's skull and, in particular, the wedge-shaped front surface of the headrest may extend below the person's occipital bone.
  • the wedge shaped headrest body portion as described above has been found to be particularly advantageous when used on reclinable seats in conjunction with attaching means that permit vertical adjustment of the position of the headrest body portion relative to the seat as described above; since for a given passenger, a different vertical position of the headrest may be desirable when the seat is upright from when the seat is reclined.
  • a headrest In a reclined position, it has been found that it is generally desirable for a headrest to support the head a little further forwards off the seat than in the upright position; and in accordance with the present invention the position of the headrest body portion may be adjusted in the direction generally parallel to the neck of the passenger, such that the passenger's head contacts the front surface of the body portion at a position where the gradated slope defined by the wedge shape affords the correct degree of support off the surface of the seat.
  • a seat comprising a headrest assembly in accordance with the invention.
  • said seat may be a vehicle seat for a passenger vehicle, especially a passenger aircraft.
  • the headrest assembly of the invention may provide improved support for the neck in the reclined position. This improved support enables a person using the seat to relax during a long journey without repeated awakening, muscle cramps, pain or ongoing discomfort.
  • said seat may be configured for being arranged in rows in the manner commonly found in passenger vehicles, especially aircraft.
  • the headrest assembly of the invention is especially suitable for use with vehicle seats for use in the economy class section of a passenger aircraft, where a pitch between adjacent rows of seats is typically in the range 31-35 inches. It has been found that the headrest assembly of the present invention may have a compact design that is suitable for use in such an arrangement where the seats are packed closely together.
  • FIG. 1 is a front perspective view of a headrest assembly according to the present invention fitted to a seat.
  • FIG. 2 is a front perspective view of the headrest assembly of FIG.1.
  • FIG. 3 is a rear perspective view of the headrest assembly of FIGS. 1 and 2.
  • FIG. 4 is a front view of the headrest assembly of FIGS. 1-3.
  • FIG. 5 is a rear view of the headrest assembly of FIGS. 1-4.
  • FIG. 6 is a plan view of the headrest assembly of FIGS. 1-5, showing the headrest assembly fitted to the backrest of a seat which is illustrated schematically.
  • FIG. 7 is a side view of the headrest assembly of FIGS. 1-6.
  • FIG. 8 is a cross-sectional view of the headrest of FIGS. 1-7 on the line VIII-VIII of FIG 5.
  • FIG. 9 is a partially cut away isometric view showing the front surface of a backrest of a seat and part of the headrest assembly of FIGS. 1-8, illustrating how the headrest assembly is attached to the backrest.
  • FIG.10 is a plan view of the headrest assembly of FIGS. 1-9, showing the rotational movement of the headrest assembly.
  • FIG. 11 is a side view of the upper ends of the backrests of two adjacent seats, each of which is fitted with a headrest assembly in accordance with the invention, showing the vertical adjustment of the headrest assembly.
  • FIG. 12A is a plan view of two-adjacent seats, each of which is fitted with a headrest assembly according to the invention, showing how the headrests of the two adjacent seats can be rotated to increase privacy between the two seats.
  • FIG. 12B is a plan view similar to FIG. 12A, showing how the headrest assemblies of the two seats can be adjusted to increase privacy for the users of the two seats together.
  • a headrest assembly 10 comprises a headrest body portion 12 for attachment to a front surface 102 of a backrest 104 of a seat 100. As shown in FIG. 1, the headrest body portion 12 is adapted to be attached to the front surface 102 of the backrest 104 at or near an upper end 103 of the backrest 104.
  • the headrest body portion 12 comprises a substantially rigid backing plate 20 having a front surface 22 and a rear surface 24 and a shaped layer of foam or other suitable padding material 30 having a front surface 32, which layer 30 is fixedly secured to the front surface 22 of the backing plate 20.
  • Said backing plate 20 may be made from any suitably strong, lightweight material, but in some embodiments a fibre-reinforced plastic composite material is preferred.
  • the layer of foam or other padding material is shaped as described in more detail below.
  • the headrest body portion 12 may also comprise a fitted cover 38 that fits over the layer of foam or other padding material 30 to protect the layer 30 and provide a more attractive finish.
  • the fitted cover may be made of fabric or leather.
  • the layer of foam or other padding material 30 that is attached to the front surface 22 of the backing plate 20 may be shaped in any manner to provide a comfortable supporting surface for the head of a person using the seat; and the thickness of the layer may be adjusted as desired.
  • the headrest body portion 12 thus forms a unitary body member having a top 14, a bottom 16 and side regions 17, 18. As best seen in FIGS.
  • the backing plate 20 is arcuate such that its front surface 22 is concave and its rear surface 24 is convex, the shapes of the front and rear surfaces 22, 24 corresponding to one another; said backing plate 20 extends between opposite lateral ends 27, 28 thereof, which ends protrude forwardly as a result of the curvature of the backing plate 20, as best seen in FIG. 6.
  • the backing plate 20 is substantially circular in cross-section. Juxtaposed each lateral end 27, 28, the backing plate 20 forms a respective side region 17, 18 of the headrest body portion 12. Intermediate said side regions 17, 18, the headrest body portion 12 defines a central region 19.
  • the concave front surface 32 of the body portion 12 is shaped to accommodate the head of a person using the seat 100, such that the side regions 17, 18 of the body portion 12 are disposed on opposite sides of the persons head for supporting the same.
  • the front surface of the layer of foam or other padding material 30 is generally circular in cross-section, like the backing plate 20, but in other embodiments the concave front surface may deviate from circular if desired.
  • the front surface 32 is continuous between the side regions 17, 18 and central region 19 of the body portion 12, such that the front surface 32 is substantially uninterrupted, without any joins, discontinuities or the like that would be uncomfortable to a person using the headrest, forming a single supporting surface without any sub-elements.
  • the backing plate 20 of the headrest body portion 12 may extend along an arc of about 180°, such that at the lateral ends 27, 28 of the backing plate 20, the side regions protrude substantially forwardly which can give an overall shape that is generally semi-circular.
  • the front surface 32 of the body portion 12 may have a greater radius than the radius of the backing plate, typically extending along an arc of about 120°; in other embodiments, the front surface 32 may extend along an arc in the range 90-150°, preferably 110-130°.
  • the body portion 12 is generally arcuate or "banana shaped" as best seen in FIG. 6.
  • the layer of foam or other padding material 30 is wedge-shaped as shown in FIG. 8, such that it tapers progressively forwardly from the backing plate 20 from the top 14 of the body portion 12 to the bottom 16.
  • the front surface 32 of the layer of foam or other padding material 30 may be generally "teardrop" shaped as shown in FIG.8, having a forwardly protruding, bulbous lower region 36 and a thinner upper region 34, the lower region 36 being configured to extend into the nape of the neck of the person using the seat to support the person's neck at the base of their skull.
  • the layer of foam or other padding material 30 may be at least 50% thicker at its widest part towards the bottom 16 than at its top 14, such that the front surface 32 forms a gradual slope having a gradient of about 1:3.
  • the front surface 32 of the foam or other padding material layer 30 may have a gradient in the range 1:2— 1:5. As best illustrated in FIG.
  • the bulbous lower region 36 of the layer of foam or other padding material 30 may be thicker towards the central region 19 of the headrest body portion than at the side regions 17, 18, such that the bulbous lower region 36 forms a central pad 33.
  • the radius of the front surface 32 of the headrest body portion 12 may be shorter at the top 14 than at the bottom 16, such that the front surface 32 of the headrest body portion has a deeper curve towards the top 14 than the bottom 16.
  • the wedge shape of the layer of foam or other padding material 30 advantageously provides effective support for the head and neck of persons of a range of different heights.
  • This particular shaping of the headrest body portion 12 to provide the wedge shape between its top 14 and bottom 16 may also be applied to other headrests (not illustrated) which need not be arcuate in the same way as the headrest 10 illustrated in the
  • the rear surface 24 of the backing plate 20 is shaped intermediate the top 14 and bottom 16 of the body portion 12 to provide an arcuate track 40 that extends longitudinally in the direction between the lateral ends 27, 28 of the backing plate 20.
  • the track 40 is formed integrally with the backing plate 20; but in other embodiments the track 40 may comprise a separate track part that can be fixedly secured to the backing plate 20 in an equivalent manner.
  • the track 40 has first and second ends 47, 48 disposed respectively juxtaposed the ends 27, 28 of the backing plate 20 and comprises two elongate, rearwardly protruding, L-shaped walls 42, 43 that oppose one another to form an elongate slot 45 therebetween, which slot extends between the first and second ends 47, 48 of the track 40.
  • the track extends round a major portion of the rear surface 24 of the backing plate to cover an arc of about 90°, which approximates to about 50% of the distance between the lateral ends 27, 28 of the backing plate 20.
  • the L-shaped walls 42, 43 define an elongate recess 48 within the track 40 intermediate the layer of foam or other padding material 30.
  • Said recess 48 accommodates snugly a shaped slider part 52, which may suitably be made from a plastics material for sliding reciprocally within the track 40 between the first and second ends 47, 48 thereof.
  • the slider part 52 has first and second lateral ends 57, 58 and is curved to correspond to the curvature of the arcuate track 40; a rearwardly protruding rib 59 that extends longitudinally between said ends 57, 58 affords additional strength.
  • Said slider part 52 forms part of a bracket assembly 50 for moveably attaching the headrest body portion 12 to the front surface 102 of the backrest 104 of the seat 100.
  • Said bracket assembly 50 further comprises two shaped blocks 53, 54 that may be made from the same plastics material as the slider part 52 and are fixedly secured to said slider part 52 at the respective opposite ends 57, 58 thereof by means of a plurality of bolts 72 that extend through the slider member 52 and the respective blocks 53, 54, and are retained in position by means of nuts in the manner well known to those skilled in the art as shown in FIG.9.
  • Each block 53, 54 has a shaped front surface 62 as described in more detail below and a rear slider portion 63 having a substantially flat rear surface 64 and spaced, vertically extending lateral grooves 65 for engagement with corresponding track members 113, 114 provided on the backrest 104. As best shown in FIGS. 3, 5, 7 and 8, the rear slider portions 63 of the blocks 53, 54 extend substantially orthogonally to the longitudinal direction of the track 40.
  • each block 53, 54 is shaped to follow the shape of the rear outer surfaces of the L-shaped walls 42, 43 of the track 40 as best shown in FIG. 7; and each block 53, 54 comprises a forwardly extending, central lug 68 that extends through the slot 45 between the L-shaped walls 42, 43 and abuts stably against the rear surface of the slider part 52.
  • the slider part 52 and blocks 53, 54 define generally L-shaped channels between the curved front surfaces 62 of the blocks 53, 54 and the rear surface of the slider part 52, which L-shaped channels accommodate snugly the L-shaped walls 42, 43 of the track 40, such that the bracket assembly 50 can slide stably along the track 40 between the first and second ends 47, 48 thereof without juddering.
  • the slider member 52 and blocks 53, 54 may be made from a low friction plastics material.
  • the fit between L-shaped walls 42, 43 and the L- shaped channels defined by the slider part 52 and blocks 53, 54 should be sufficiently tight as to prevent free sliding of the bracket assembly 50 along the track 40 and cause the bracket assembly 50 to be retained in any desired position along the track 40, but should not be so tight as to make movement of the bracket assembly 50 by hand along the track 40 unduly difficult.
  • the bracket assembly 50 and the track 40 form a detent (not shown) at a position generally midway between the first and second ends 47, 48 of the track 40, for locating the bracket assembly 50 in a centre position.
  • the person skilled in the art will know various different ways of achieving such a detent, including, for example, moulding the L-shaped walls 42, 43 of the track 40 with a slight recess at the centre position.
  • upper ends of the blocks 53, 54 carry a metal bar 74 that extends therebetween, which bar 74 carries a depending slotted spring member 76 that extends vertically over the track 40 between the two blocks 53, 54 at a position
  • the spring member 76 may be made from any suitably resilient metal that forms a spring.
  • the spring member 76 has upper and lower ends 77, 78 and curves forwardly towards the backing plate 20 of the headrest body portion 12 at each end, and defines an elongate, vertically extending slot 80, which is enlarged at the upper end 77 of the spring member 76 to allow the head of a bolt 115 secured to the front surface 102 of the backrest 104 to be entered through the slot as described in greater detail below.
  • the lower end 78 forms a finger-engaging tab to provide a quick release mechanism for the headrest 10 as described in more detail below.
  • the rear slider portions 65 of blocks 53, 54 are configured to engage slideably in said corresponding track members 113, 114 provided on the front surface of 102 of the backrest 104 of the seat 100.
  • Said track members 113, 114 extend substantially vertically with respect to the backrest 104, such that movement of the blocks 53, 54 along the track members 113, 114 causes movement of the headrest 10 in the general vertical direction with respect to the backrest 104.
  • the backrest is capable of being reclined, in which case the vertical direction defined by the backrest, which is generally parallel to the spine of a person using the seat, will not necessarily be truly vertical. Instead, the term “vertical” is used herein to mean generally the up-down direction relative to the backrest of the seat.
  • Each of the track members 113, 114 is fitted with a plurality of spaced spring members 118 for urging the block members 53, 54 forwardly with respect to the backrest to tighten the engagement between the rear slider portions 65 of the blocks 53, 54 and the respective track members 113, 114, thereby to prevent unwanted sliding of the headrest 10 along the tracks 113, 114 and to retain the headrest 10 in position unless it is moved by hand.
  • the front surface 102 of the backrest 104 is also fitted with a forwardly protruding bolt 115 (see FIG. 9) which engages in the slot 80 of the slotted spring member 76, with the head of the bolt 115 being entrapped forwardly of the spring member 76 by the spring member itself.
  • the slotted spring member 76 is configured such that the bolt 115 and cannot normally pass the upper or lower ends 77, 78, thus providing end stops for vertical movement of the headrest 10 relative to the seat.
  • the lower end 78 of the spring member 76 may be depressed by hand by engaging the tab 78 at the lower end and urging it rearwardly against the spring towards the front surface of the seat 102, such that the head of the bolt 115 is then able to pass through the enlarged upper end 77.
  • FIG. 11 of the accompanying drawings shows the upper parts of the backrest 104, 104' of two adjacent seats 100, 100', each fitted with a headrest 10, 10' as hereinbefore described.
  • the chain-dot line in FIG. 11 shows how the vertical position of the headrest 10 may be adjusted relative to the backrest 104.
  • the headrest 10 In order to fit the headrest 10 to the backrest 104 of the seat 100, the headrest 10 is held in position juxtaposed the backrest 104, with the rear slider portions 65 of blocks 53, 54 generally aligned with the track members 113, 114 on the seat 100.
  • the lower tab 78 of the slotted spring member 76 is pushed rearwardly away from the rear surface of the headrest body portion 12, and the upper end 77 of the member 76 is entered over the head of the bolt 115, such that the bolt 115 enters the slot.
  • the rear slider portions 65 of blocks 53, 54 are slid into the respective tracks 113, 114.
  • the spring member 76 can then be released and the headrest 10 moved vertically along the tracks 113, 114 to its desired position, excessive movement of the headrest 10 being prevented by engagement of the bolt 115 in the slot.
  • the bracket assembly 50 of the headrest 10 When fitted to a seat 100, the bracket assembly 50 of the headrest 10 according to the invention allows movement of the headrest body portion 12 with respect to the backrest 104, by permitting the bracket assembly 50 to slide along the track 40 that is provided on the rear surface 24 of the backing plate 20 of the headrest body portion 12.
  • the bracket assembly 50 remains stationary with respect to the backrest 104 (apart from the possibility of vertical movement relative thereto as described above) and the headrest body portion 12 slides relative to the bracket assembly 50 along the arcuate track 40 between the first and second ends 47, 48 thereof.
  • this movement of the headrest body portion 12 relative to the bracket assembly 50 is manifested as rotational movement of the headrest body portion 12, allowing the extent to which the side regions 17, 18 of the headrest body portion 12 protrude forwardly relative to the seat 100 to be adjusted.
  • there is substantially no translational displacement of the body portion 12 relative to the seat although if that were desired then the shape of the track could be altered accordingly to provide one or more non-circular sections. This is best shown in FIG.
  • the body portion 12 which shows in chain-dot lines the rotation of the headrest body portion 12 from the middle position defined by the detent in which the bracket assembly 50 is positioned substantially centrally with respect to the track 40 and a rotated position in which the bracket assembly 50 is disposed at one end of the track 40 owing to movement of the track 40 relative to the bracket assembly 50, and one side region 18 protrudes forwardly to a greater extent with respect to the backrest 104 than the other side region 17.
  • the body portion Owing to the curvature of the body portion 12 and the length of the track 40, the body portion is able to rotate through an angle of at least about 20° and preferably more to each side of the central position.
  • the position of the headrest body portion 12 can be adjusted by a person using the seat to provide a comfortable support for the side of his or her head.
  • the person using the seat can thus adjust the side-to-side position of the headrest body portion 12 to provide a surface on which he or she may lean his or her head to the side for sleeping. This provides a substantially more comfortable arrangement for sleeping or relaxing than a headrest which provides little or no support for the side of the head.
  • the wedge shape of the layer of foam or other padding material 30 on the front surface 22 of the backing plate 20 of the headrest body portion 12 provides proper support for the person's neck and base of his or her skull, so that the person's neck does not have to support the entire weight of his or her head.
  • the vertical position of the headrest 10 relative to the backrest 104 can be adjusted according to the angle of recline. It has been found that persons using the seat generally prefer their heads to be supported further off the backrest in a reclining position than in an upright position.
  • the point on the wedge shaped front surface 32 of the layer of foam or other padding material 30 that contacts the back of the person's head can be adjusted to provide the desired degree of "lift" for the person off the backrest.
  • FIGS. 12A and 12B show two adjacent seats 100, 100', each of which is fitted with a headrest 10, 10' as hereinbefore described.
  • the headrests 10, 10' of the two adjacent seats 100, 100' can be adjusted so that in each seat a different side region 17, 18 of the headrest body portion 12, 12' protrudes more forwardly of the backrest 104, 104'.
  • the headrests 10, 10' can be adjusted to increase privacy between the two adjoining seats 100, 100' as shown in FIG. 12A; or can be adjusted to increase the privacy (intimacy) for the two seats together as shown in FIG. 12B.
  • FIG. 12A shows two adjacent seats 100, 100', each of which is fitted with a headrest 10, 10' as hereinbefore described.
  • the headrests 10, 10' of the two adjacent seats 100, 100' can be adjusted so that in each seat a different side region 17, 18 of the headrest body portion 12, 12' protrudes more forwardly of the backrest 104, 104'.
  • the side regions 17, 18' of the headrest 10, 10' which are nearest to one another may be positioned more forwardly of the backrest 104, 104' than the other side regions 17', 18; and in the later case, as illustrated in FIG. 12B the side regions 17, 18' of the headrests 10, 10' that are disposed closest to one another may be positioned so that they protrude less far forwardly relative to the backrests 104, 104' than the side regions 17', 18 of the two headrests 10, 10' that are disposed furthest away from one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un ensemble appuie-tête (10) pour un siège (100). Ledit ensemble appuie-tête comprend une partie de corps d'appuie-tête (12) ayant une surface avant concave (32) pour supporter la tête ou le cou d'une personne utilisant le siège et une surface arrière convexe (24), ladite surface avant ayant deux zones latérales opposées (17,18); et un moyen de fixation (50) pour fixer la partie de corps d'appuie-tête de manière mobile au siège, de sorte que les deux zones latérales opposées de la surface avant fassent saillie vers l'avant relativement au siège, afin de supporter des côtés opposés respectifs de la tête ou du cou d'une personne. Le moyen de fixation (50) comprend une piste arquée allongée (40) située sur la surface arrière de la partie de corps et un suiveur de piste (52, 53, 54) pouvant être fixé au siège, permettant ainsi le mouvement de la partie de corps d'appuie-tête relativement au siège, de sorte que la surface avant (32) puisse être tournée relativement au siège afin d'ajuster l'étendue de la saillie des zones latérales vers l'avant.
PCT/EP2010/062199 2009-08-20 2010-08-20 Appuie-tête WO2011020919A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23551609P 2009-08-20 2009-08-20
US61/235,516 2009-08-20
GB0914587.1 2009-08-20
GB0914587A GB2472836A (en) 2009-08-20 2009-08-20 Headrest

Publications (1)

Publication Number Publication Date
WO2011020919A1 true WO2011020919A1 (fr) 2011-02-24

Family

ID=41171686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/062199 WO2011020919A1 (fr) 2009-08-20 2010-08-20 Appuie-tête

Country Status (2)

Country Link
GB (1) GB2472836A (fr)
WO (1) WO2011020919A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011055895A1 (de) * 2011-11-30 2013-06-06 Grammer Ag Fahrzeugsitz mit seitlichem Stützelement
DE102011055897A1 (de) * 2011-11-30 2013-06-06 Grammer Ag Fahrzeugsitz und Nutzfahrzeug
US8998335B2 (en) 2011-11-30 2015-04-07 Grammer Ag Vehicle seat and commercial vehicle
US9221362B2 (en) 2013-06-26 2015-12-29 Grammer Ag Vehicle seat and utility vehicle comprising at least one vehicle seat
US9266447B2 (en) 2011-11-30 2016-02-23 Grammer Ag Vehicle seat and commercial vehicle
US9283871B2 (en) 2013-06-26 2016-03-15 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9527409B2 (en) 2013-06-26 2016-12-27 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9604557B2 (en) 2014-04-16 2017-03-28 Grammer Ag Dust-insensitive slide rail
US9610864B2 (en) 2013-06-26 2017-04-04 Grammar Ag Vehicle seat and utility motor vehicle comprising a vehicle seat

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2883742A1 (fr) * 2013-12-11 2015-06-17 Airbus Operations GmbH Ensemble de modification de siège et siège de passager d'avion comportant un tel ensemble
CN104354614B (zh) * 2014-11-03 2017-02-01 上海延锋江森座椅有限公司 靠背可旋转座椅

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744364A (en) 1928-07-11 1930-01-21 David G Cruickshank Headrest
US3393938A (en) * 1966-10-11 1968-07-23 Kenneth H. Meyer Headrest
JPS58152925U (ja) 1982-04-06 1983-10-13 三金工業株式会社 治療用椅子
JPS6175758U (fr) 1984-10-25 1986-05-22
US5211696A (en) 1991-04-09 1993-05-18 Jim Lacy Head support for vehicle seat backs
US5370446A (en) 1993-12-10 1994-12-06 Bancod; Ludovico E. Headrest with side supports
DE19602909A1 (de) * 1996-01-27 1997-07-31 Keiper Recaro Gmbh Co Kopfstütze für Fahrzeugsitze
GB2317333A (en) 1996-09-24 1998-03-25 Autoliv Dev Headrest with extendable side elements
JP2000038070A (ja) 1998-07-22 2000-02-08 Mitsubishi Motors Corp 自動車用ヘッドレスト構造
US20060181117A1 (en) 2003-03-20 2006-08-17 Schmuda Von Trzebiatowski Pete Headrest,particularly for a motor vehicle seat
AT505212A1 (de) * 2007-04-13 2008-11-15 Greiner Purtec Gmbh Sitz, insbesondere für öffentliche verkehrsmittel
WO2009025541A1 (fr) 2007-08-20 2009-02-26 Automotive Design Services Sdn Bhd Dispositif de verrouillage pour appui-tête réglable
FR2929185A1 (fr) 2008-03-27 2009-10-02 Peugeot Citroen Automobiles Sa Dispositif a double effet pour la commande d'un support coulissant d'appuie-tete de siege de vehicule automobile

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1744364A (en) 1928-07-11 1930-01-21 David G Cruickshank Headrest
US3393938A (en) * 1966-10-11 1968-07-23 Kenneth H. Meyer Headrest
JPS58152925U (ja) 1982-04-06 1983-10-13 三金工業株式会社 治療用椅子
JPS6175758U (fr) 1984-10-25 1986-05-22
US5211696A (en) 1991-04-09 1993-05-18 Jim Lacy Head support for vehicle seat backs
US5370446A (en) 1993-12-10 1994-12-06 Bancod; Ludovico E. Headrest with side supports
DE19602909A1 (de) * 1996-01-27 1997-07-31 Keiper Recaro Gmbh Co Kopfstütze für Fahrzeugsitze
GB2317333A (en) 1996-09-24 1998-03-25 Autoliv Dev Headrest with extendable side elements
JP2000038070A (ja) 1998-07-22 2000-02-08 Mitsubishi Motors Corp 自動車用ヘッドレスト構造
US20060181117A1 (en) 2003-03-20 2006-08-17 Schmuda Von Trzebiatowski Pete Headrest,particularly for a motor vehicle seat
AT505212A1 (de) * 2007-04-13 2008-11-15 Greiner Purtec Gmbh Sitz, insbesondere für öffentliche verkehrsmittel
WO2009025541A1 (fr) 2007-08-20 2009-02-26 Automotive Design Services Sdn Bhd Dispositif de verrouillage pour appui-tête réglable
FR2929185A1 (fr) 2008-03-27 2009-10-02 Peugeot Citroen Automobiles Sa Dispositif a double effet pour la commande d'un support coulissant d'appuie-tete de siege de vehicule automobile

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011055895A1 (de) * 2011-11-30 2013-06-06 Grammer Ag Fahrzeugsitz mit seitlichem Stützelement
DE102011055897A1 (de) * 2011-11-30 2013-06-06 Grammer Ag Fahrzeugsitz und Nutzfahrzeug
US8998335B2 (en) 2011-11-30 2015-04-07 Grammer Ag Vehicle seat and commercial vehicle
US9120405B2 (en) 2011-11-30 2015-09-01 Grammer Ag Vehicle seat with lateral support element
US9266447B2 (en) 2011-11-30 2016-02-23 Grammer Ag Vehicle seat and commercial vehicle
US9221362B2 (en) 2013-06-26 2015-12-29 Grammer Ag Vehicle seat and utility vehicle comprising at least one vehicle seat
US9283871B2 (en) 2013-06-26 2016-03-15 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9527409B2 (en) 2013-06-26 2016-12-27 Grammer Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9610864B2 (en) 2013-06-26 2017-04-04 Grammar Ag Vehicle seat and utility motor vehicle comprising a vehicle seat
US9604557B2 (en) 2014-04-16 2017-03-28 Grammer Ag Dust-insensitive slide rail

Also Published As

Publication number Publication date
GB0914587D0 (en) 2009-09-30
GB2472836A (en) 2011-02-23

Similar Documents

Publication Publication Date Title
WO2011020919A1 (fr) Appuie-tête
US10829019B2 (en) Headrest for a vehicle seat
WO2017155069A1 (fr) Structure de siège
US10239419B2 (en) Anthropomorphic pivotable upper seatback support
CN108528284B (zh) 用于仰卧式机动车辆座椅总成的座椅靠背举升机构
US3495871A (en) Adjustable seat,primarily for motor vehicles
KR100898863B1 (ko) 년소자용 자동차의자
US20060170274A1 (en) Seat portion of a seat
US7819474B2 (en) Adjustable thigh support for a motor vehicle seat
EP0677423A1 (fr) Soutien du cou pour sièges de véhicules
EP3385117A1 (fr) Dispositif de support d'occupant pour siège
JP6053657B2 (ja) 車両用シートの頚支持装置
CN110352146B (zh) 乘坐物用座椅
JP3146000U (ja) 乗物用枕、及び、これを備えた乗物用の座席シート
JP3130252B2 (ja) 座席のヘッドレスト装置
JP7300223B1 (ja) カスタムクッション式シートバック
US20110031792A1 (en) Lower pelvic corner support device for automotive recliner seat
JP2023000747A (ja) 調整式シートバック
KR100516583B1 (ko) 차량 뒷좌석의 헤드 레스트
KR970003868Y1 (ko) 자동차용 리어시트의 리클라인(Recline)장치
JPS6328654Y2 (fr)
CN116946372A (zh) 斜倚式座椅
JPS62518Y2 (fr)
JPH055066Y2 (fr)
KR101694703B1 (ko) 착석 길이 조절이 가능한 차량용 시트

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10748075

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2012525179

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: JP

122 Ep: pct application non-entry in european phase

Ref document number: 10748075

Country of ref document: EP

Kind code of ref document: A1