US20080100118A1 - Dynamic headrest - Google Patents
Dynamic headrest Download PDFInfo
- Publication number
- US20080100118A1 US20080100118A1 US11/553,623 US55362306A US2008100118A1 US 20080100118 A1 US20080100118 A1 US 20080100118A1 US 55362306 A US55362306 A US 55362306A US 2008100118 A1 US2008100118 A1 US 2008100118A1
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- US
- United States
- Prior art keywords
- headrest
- shell
- actuator
- spring
- cam
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
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Classifications
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- 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
- B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
-
- 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
- B60N2/865—Head-rests movable or adjustable providing a fore-and-aft movement with respect to the occupant's head
Definitions
- the present invention relates to dynamic headrests of the type that move towards the head of a seat occupant when actuated.
- FIG. 1 illustrates a dynamic headrest seating system in accordance with one non-limiting aspect of the present invention
- FIGS. 2-3 illustrates views of the headrest in accordance with one non-limiting aspect of the present invention
- FIG. 4 a - b illustrate a partial view of an actuator in accordance with one non-limiting aspect of the present invention.
- FIG. 5 illustrates a component view of the actuator in accordance with one non-limiting aspect of the present invention.
- FIG. 1 illustrates a dynamic headrest seating system 10 in accordance with one non-limiting aspect of the present invention.
- the system 10 may be associated with a vehicle (not shown) having a vehicle seat 12 and controller (not shown).
- the vehicle seat may include a dynamic headrest 14 having capabilities to facilitate moving forwardly in response to signals received from the controller.
- the forward movement of the headrest may be suitable to satisfy the above-identified FMVSS requirements.
- the controller may be configured to instigate or otherwise coordinate actuation of the headrest 14 as a function of any number of vehicle operating conditions associated with a need to impart such movement and/or may the headrest may be directly actuate with signals form system associated with sensing pre/post-crash conditions, i.e., without processing by the controller.
- the controller may communicate, monitor, or otherwise interface with any number of vehicle elements suitable for use in assessing conditions suitable to actuation of the headrest, such as but not limited to those described in U.S. Pat. No. 5,882,060, the disclosure of which is hereby incorporated in its entirety.
- the controller may rely on pre-crash information gleaned from radar detectors, navigation elements, vehicle-to-vehicle warnings, and the like when assessing a need to actuate the headrest. This and other information may be helpful in actuating the headrest prior to or in anticipation of an impending accident or other incident suitable for headrest actuation.
- the controller may rely on information received from an accelerometer, air bag deployment sensor, and crash sensors when assessing a need to actuate the headrest.
- the accelerometer may indicate a rapid acceleration or other change in vehicle operation conditions commonly associated with an accident or other conditions suitable for actuating the headrest 14 .
- the air bag deployment sensor may indicate deployment of the air bag due to a crash or other event. Such crash-based or other vehicle movement based information may be helpful in actuating the headrest after an accident or other incident suitable for headrest deployment.
- the present invention contemplates any number of conditions for actuating the headrest and is not intended to be limited to the foregoing.
- the foregoing describes electronically determined operations and actuating the headrest 14 with signals generated by the controller as a function thereof.
- the present invention fully contemplates non-electronic or mechanical means and methods for actuating the headrest 14 , such as but not limited to other means similarly or not similarly associated with the foregoing pre-crash and post-crash conditions.
- the headrest 14 may include capabilities to facilitate moving forwardly in response to signals received from pre-crash or post crash conditions, such as but not limited to conditions measured with an accelerometer, manual actuation via occupant acceleration, and/or electromechanical actuation transforming occupant acceleration into electronic actuation.
- the system 10 is described with respect to automobiles and other vehicles where it may be desirable to actuation the headrest 14 in response to or in expectation of an accident or other suitable operating condition.
- the present invention is not intended to be limited to vehicles and actuating the headrest 14 in response to accidents.
- the present invention contemplates using the dynamic headrest 14 of the present invention in any number of non-automotive or non-vehicular applications.
- FIGS. 2-3 illustrates views of the headrest 14 in accordance with one non-limiting aspect of the present invention.
- the views illustrate an actuator 16 and headrest shell 18 in a pre-actuation position (solid) and actuated position (phantom).
- the actuator 16 may be configured to impart a rotary motion that results in linear displacement of the shell 18 in a forwardly direction, i.e., toward the occupant's head.
- One non-limiting aspect of this invention relates to a rotary member 24 24 having a cam 26 and cam follower 28 configured through an interference movement or direct cam follower attachment movement.
- Another non-limiting aspect may be off-set cams which provide variable displacement versus cam surface rotation.
- the actuator 16 may store kinetic energy such that the kinetic energy is released or fired in order to rapidly actuate the headrest 14 in a forwardly direction towards the occupants head. In this manner, the gap between the passenger's head and the headrest 14 is decreased so as to limit neck and head injuries during accidents and other operating conditions.
- a locking mechanism 34 may be included to prevent the occupant's head from rewardly moving the forwardly deployed headrest.
- the locking mechanism may include a spring biased locking lever 36 configured to interact with a gear 38 on the rotary member 24 (See FIGS. 4 a - b ) such that the headrest 14 is prohibited from moving rearwardly without unlocking the locking mechanism 34 with retraction of a cable 40 connected to the lever.
- the actuator 16 may comprise any type of actuator suitable to facilitate moving the headrest forwardly and is not necessarily limited to the illustrated actuator. With respect to the illustrated actuator 16 , however, it may correspond with the trigger assembly described in U.S. patent application corresponding with U.S. Ser. No. 11/472,203 that utilizes a smart memory alloy (SMA) trigger 44 to actuate to the rotary member 24 , the disclosure of which is hereby incorporated in its entirety.
- SMA smart memory alloy
- the actuator 16 may include a plate 46 for supporting a rotary member 24 .
- the plate 24 may be used to connect the rotary member 24 to a cross-bar portion 50 of a headrest support post 52 such that the rotary member 24 is fixed to the post.
- the shell 18 may include a relief 55 , 57 for riding within a laterally extending portion of the support post 52 .
- the shell 18 may be free to displace relative to the laterally extending portion of the support post 52 such that it displaces in a linear direction toward the seat occupant's head with actuation of the rotary member 24 , as shown in FIGS. 2-3 .
- the actuator 16 may include the cam follower 28 connected to a front face of the shell 18 , integrally molded thereto, and/or otherwise in communication therewith the facilitate its linear displacement.
- the cam follower 28 may be moved forwardly with actuation of the rotary member 24 .
- the rotary member 24 may include the cam 26 having a cam portion 56 configured to facilitate linearly moving the shell 18 forwardly about the support post with rotary action of the cam 26 .
- the cam 26 may include a relief with side walls 58 to engage and position the cam follower 28 thereto.
- the cam portion 56 may be arcuate in shape such that rotary motion of the cam 26 causes the cam follower 28 to displace linearly at a fixed elevation.
- the displacement of the cam follower 28 may result in the shell 18 moving forwardly about the laterally extending portion of the support post 52 towards the occupant's head. In this manner, the movement of the headrest 14 towards the passenger is defined relative to the support post 52 used to support the headrest.
- the support post 52 may be connected to a receiving unit (not shown) within the seat back.
- the support post 52 may be vertically or otherwise positioned relative to the seat back and the occupant's head so that actuation of the shell 18 corresponds with desired positioning of the headrest relative to the occupant's head.
- the support post 52 may be used to position the headrest 14 to any number of locations relative to the occupant's head and with mechanical or non-mechanical operations.
- the shell 18 may include grooves 60 - 62 or channels 64 operable with posts 66 - 68 and guide 70 of the support plate 46 .
- the posts and guides may extend into the channels of the shell to stabilize movement of the shell relative to the plate. This may be helpful to assure that both ends of the shell 18 move forwardly towards the passenger during actuation.
- the posts and guides may also be helpful in facilitation assembly of the headrest, and in particular, alignment of the shell relative to the actuator.
- FIG. 4 a - b illustrate a partial view of the actuator 16 in accordance with one non-limiting aspect of the present invention.
- FIG. 4 illustrates the actuator 16 in a loaded or non-actuate state
- FIG. 5 illustrates the actuator 16 in an unloaded or actuated state.
- the elevation of the cam follower 28 remains substantially fixed during the rotary motion of the cam 26 such that the shell 18 is moved forwardly at a corresponding fixed elevation.
- the cam follower 28 may be affixed to an inside face of the shell such that the positioning of the shell relative to the support post 52 is sufficient to secure the cam follower 28 relative to the cam without requiring a permanent mechanical connection between the cam follower and the cam and/or without requiring the side walls 58 .
- This lack of engagement may be helpful in facilitating manufacturing of the headrest as the assembler need only position the shell 18 relative to the rotary member 24 , as opposed to having to secure a permanent mechanical connection between the same.
- FIG. 5 illustrates a component view of the actuator 16 in accordance with one non-limiting aspect of the present invention.
- the movement of the actuator 16 may be associated with a power spring 80 configured to impart rotary action to the cam.
- the power spring may be mounted relative to a reference plate 82 that is fixed to plate 46 and used to define a central axis 84 of the actuator 16 , as described in the above-reference patent application.
- the spring 80 may be biased in a counter-clockwise direction such that it is loaded or otherwise configured to store its kinetic energy for subsequent release.
- the actuator may be actuated with the trigger retracting a trigger plate 86 and spring 88 to release an engagement fit between balls 90 - 94 and the cam 26 .
- the release of the cam 26 allows the power spring 80 to rotate in a clockwise direction, and thereby cause the cam 26 to rotate about the reference plate 82 in order to impart the linear displacement to cam follower 28 .
- the release and actuation of the rotary member 24 may correspond with the release and actuation of the trigger assembly included in U.S. Ser. No. 11/472,203.
- the rotary member 24 may be reloaded for subsequent actuation by simply pushing rearwardly on the headrest shell 18 .
- the rearward movement restores the power spring 80 to its loaded position.
- the illustrated locking mechanism 34 is included, it may need to be unlocked in order to permit the rearward movement.
- the illustrated locking mechanism 34 is shown for exemplary purposes and without intending to limit the scope and contemplation of the present invention.
- the locking mechanism 34 may be replaced with any device having suitable capabilities for preventing rearward movement of headrest 14 , and which may or may not require unlocking in order to reset the headrest 14 .
- the ability to reload the rotary member 24 , or more particularly the power spring, allows the present invention to provide a resettable dynamic headrest assembly. This may be advantageous in allowing the headrest to be repeatable reloaded over time without having to be replaced. This may be further advantageous over pyrotechnic or other so called ‘limited use’ headrest that require replacement of pyrotechnic devices (air bag) or other more involved processes to reset the headrest.
Abstract
Description
- 1. Field of the Invention
- The present invention relates to dynamic headrests of the type that move towards the head of a seat occupant when actuated.
- 2. Background Art
- On Jan. 4, 2001, the National Highway Traffic Safety Administration (NHTSA) published a Notice for Proposed Rulemaking (NPRM) regarding the upgraded requirements and changes to Federal Motor Vehicle Safety Standard (FMVSS) 202. The proposals focused on vehicle head restraints, which became final rule FMVSS 202A that took effect Sep. 1, 2005. One aspect of this rule relates to dynamic headrest. Accordingly, a need exists to provide a dynamic headrest that meets the FMVSS requirements.
- The present invention is pointed out with particularity in the appended claims. However, other features of the present invention will become more apparent and the present invention will be best understood by referring to the following detailed description in conjunction with the accompany drawings in which:
-
FIG. 1 illustrates a dynamic headrest seating system in accordance with one non-limiting aspect of the present invention; -
FIGS. 2-3 illustrates views of the headrest in accordance with one non-limiting aspect of the present invention; -
FIG. 4 a-b illustrate a partial view of an actuator in accordance with one non-limiting aspect of the present invention; and -
FIG. 5 illustrates a component view of the actuator in accordance with one non-limiting aspect of the present invention. -
FIG. 1 illustrates a dynamicheadrest seating system 10 in accordance with one non-limiting aspect of the present invention. Thesystem 10 may be associated with a vehicle (not shown) having avehicle seat 12 and controller (not shown). The vehicle seat may include adynamic headrest 14 having capabilities to facilitate moving forwardly in response to signals received from the controller. The forward movement of the headrest may be suitable to satisfy the above-identified FMVSS requirements. - The controller may be configured to instigate or otherwise coordinate actuation of the
headrest 14 as a function of any number of vehicle operating conditions associated with a need to impart such movement and/or may the headrest may be directly actuate with signals form system associated with sensing pre/post-crash conditions, i.e., without processing by the controller. The controller may communicate, monitor, or otherwise interface with any number of vehicle elements suitable for use in assessing conditions suitable to actuation of the headrest, such as but not limited to those described in U.S. Pat. No. 5,882,060, the disclosure of which is hereby incorporated in its entirety. - The controller may rely on pre-crash information gleaned from radar detectors, navigation elements, vehicle-to-vehicle warnings, and the like when assessing a need to actuate the headrest. This and other information may be helpful in actuating the headrest prior to or in anticipation of an impending accident or other incident suitable for headrest actuation.
- The controller may rely on information received from an accelerometer, air bag deployment sensor, and crash sensors when assessing a need to actuate the headrest. The accelerometer may indicate a rapid acceleration or other change in vehicle operation conditions commonly associated with an accident or other conditions suitable for actuating the
headrest 14. The air bag deployment sensor may indicate deployment of the air bag due to a crash or other event. Such crash-based or other vehicle movement based information may be helpful in actuating the headrest after an accident or other incident suitable for headrest deployment. - The present invention contemplates any number of conditions for actuating the headrest and is not intended to be limited to the foregoing. The foregoing describes electronically determined operations and actuating the
headrest 14 with signals generated by the controller as a function thereof. The present invention fully contemplates non-electronic or mechanical means and methods for actuating theheadrest 14, such as but not limited to other means similarly or not similarly associated with the foregoing pre-crash and post-crash conditions. For example, theheadrest 14 may include capabilities to facilitate moving forwardly in response to signals received from pre-crash or post crash conditions, such as but not limited to conditions measured with an accelerometer, manual actuation via occupant acceleration, and/or electromechanical actuation transforming occupant acceleration into electronic actuation. - The
system 10 is described with respect to automobiles and other vehicles where it may be desirable to actuation theheadrest 14 in response to or in expectation of an accident or other suitable operating condition. The present invention, however, is not intended to be limited to vehicles and actuating theheadrest 14 in response to accidents. The present invention contemplates using thedynamic headrest 14 of the present invention in any number of non-automotive or non-vehicular applications. -
FIGS. 2-3 illustrates views of theheadrest 14 in accordance with one non-limiting aspect of the present invention. The views illustrate anactuator 16 andheadrest shell 18 in a pre-actuation position (solid) and actuated position (phantom). Theactuator 16 may be configured to impart a rotary motion that results in linear displacement of theshell 18 in a forwardly direction, i.e., toward the occupant's head. One non-limiting aspect of this invention relates to arotary member 24 24 having acam 26 andcam follower 28 configured through an interference movement or direct cam follower attachment movement. Another non-limiting aspect may be off-set cams which provide variable displacement versus cam surface rotation. - The
actuator 16 may store kinetic energy such that the kinetic energy is released or fired in order to rapidly actuate theheadrest 14 in a forwardly direction towards the occupants head. In this manner, the gap between the passenger's head and theheadrest 14 is decreased so as to limit neck and head injuries during accidents and other operating conditions. Alocking mechanism 34 may be included to prevent the occupant's head from rewardly moving the forwardly deployed headrest. The locking mechanism may include a springbiased locking lever 36 configured to interact with agear 38 on the rotary member 24 (SeeFIGS. 4 a-b) such that theheadrest 14 is prohibited from moving rearwardly without unlocking thelocking mechanism 34 with retraction of acable 40 connected to the lever. - The
actuator 16 may comprise any type of actuator suitable to facilitate moving the headrest forwardly and is not necessarily limited to the illustrated actuator. With respect to the illustratedactuator 16, however, it may correspond with the trigger assembly described in U.S. patent application corresponding with U.S. Ser. No. 11/472,203 that utilizes a smart memory alloy (SMA) trigger 44 to actuate to therotary member 24, the disclosure of which is hereby incorporated in its entirety. - The
actuator 16 may include aplate 46 for supporting arotary member 24. Theplate 24 may be used to connect therotary member 24 to across-bar portion 50 of aheadrest support post 52 such that therotary member 24 is fixed to the post. Theshell 18 may include arelief support post 52. Theshell 18 may be free to displace relative to the laterally extending portion of thesupport post 52 such that it displaces in a linear direction toward the seat occupant's head with actuation of therotary member 24, as shown inFIGS. 2-3 . - The
actuator 16 may include thecam follower 28 connected to a front face of theshell 18, integrally molded thereto, and/or otherwise in communication therewith the facilitate its linear displacement. Thecam follower 28 may be moved forwardly with actuation of therotary member 24. Therotary member 24 may include thecam 26 having acam portion 56 configured to facilitate linearly moving theshell 18 forwardly about the support post with rotary action of thecam 26. Thecam 26 may include a relief withside walls 58 to engage and position thecam follower 28 thereto. - The
cam portion 56 may be arcuate in shape such that rotary motion of thecam 26 causes thecam follower 28 to displace linearly at a fixed elevation. The displacement of thecam follower 28 may result in theshell 18 moving forwardly about the laterally extending portion of thesupport post 52 towards the occupant's head. In this manner, the movement of theheadrest 14 towards the passenger is defined relative to thesupport post 52 used to support the headrest. - The
support post 52 may be connected to a receiving unit (not shown) within the seat back. Thesupport post 52 may be vertically or otherwise positioned relative to the seat back and the occupant's head so that actuation of theshell 18 corresponds with desired positioning of the headrest relative to the occupant's head. Thesupport post 52 may be used to position theheadrest 14 to any number of locations relative to the occupant's head and with mechanical or non-mechanical operations. - The
shell 18 may include grooves 60-62 orchannels 64 operable with posts 66-68 andguide 70 of thesupport plate 46. The posts and guides may extend into the channels of the shell to stabilize movement of the shell relative to the plate. This may be helpful to assure that both ends of theshell 18 move forwardly towards the passenger during actuation. The posts and guides may also be helpful in facilitation assembly of the headrest, and in particular, alignment of the shell relative to the actuator. -
FIG. 4 a-b illustrate a partial view of theactuator 16 in accordance with one non-limiting aspect of the present invention.FIG. 4 illustrates theactuator 16 in a loaded or non-actuate state andFIG. 5 illustrates theactuator 16 in an unloaded or actuated state. As shown, the elevation of thecam follower 28 remains substantially fixed during the rotary motion of thecam 26 such that theshell 18 is moved forwardly at a corresponding fixed elevation. - The
cam follower 28 may be affixed to an inside face of the shell such that the positioning of the shell relative to thesupport post 52 is sufficient to secure thecam follower 28 relative to the cam without requiring a permanent mechanical connection between the cam follower and the cam and/or without requiring theside walls 58. This lack of engagement may be helpful in facilitating manufacturing of the headrest as the assembler need only position theshell 18 relative to therotary member 24, as opposed to having to secure a permanent mechanical connection between the same. -
FIG. 5 illustrates a component view of theactuator 16 in accordance with one non-limiting aspect of the present invention. The movement of theactuator 16 may be associated with apower spring 80 configured to impart rotary action to the cam. The power spring may be mounted relative to areference plate 82 that is fixed to plate 46 and used to define acentral axis 84 of theactuator 16, as described in the above-reference patent application. Thespring 80 may be biased in a counter-clockwise direction such that it is loaded or otherwise configured to store its kinetic energy for subsequent release. - The actuator may be actuated with the trigger retracting a
trigger plate 86 andspring 88 to release an engagement fit between balls 90-94 and thecam 26. The release of thecam 26 allows thepower spring 80 to rotate in a clockwise direction, and thereby cause thecam 26 to rotate about thereference plate 82 in order to impart the linear displacement tocam follower 28. The release and actuation of therotary member 24 may correspond with the release and actuation of the trigger assembly included in U.S. Ser. No. 11/472,203. - From the actuated position (phantom), the
rotary member 24 may be reloaded for subsequent actuation by simply pushing rearwardly on theheadrest shell 18. The rearward movement restores thepower spring 80 to its loaded position. If the illustratedlocking mechanism 34 is included, it may need to be unlocked in order to permit the rearward movement. The illustratedlocking mechanism 34 is shown for exemplary purposes and without intending to limit the scope and contemplation of the present invention. Thelocking mechanism 34 may be replaced with any device having suitable capabilities for preventing rearward movement ofheadrest 14, and which may or may not require unlocking in order to reset theheadrest 14. - The ability to reload the
rotary member 24, or more particularly the power spring, allows the present invention to provide a resettable dynamic headrest assembly. This may be advantageous in allowing the headrest to be repeatable reloaded over time without having to be replaced. This may be further advantageous over pyrotechnic or other so called ‘limited use’ headrest that require replacement of pyrotechnic devices (air bag) or other more involved processes to reset the headrest. - As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention that may be embodied in various and alternative forms. The figures are not necessarily to scale, some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for the claims and/or as a representative basis for teaching one skilled in the art to variously employ the present invention.
- While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention.
Claims (26)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US11/553,623 US20080100118A1 (en) | 2006-10-27 | 2006-10-27 | Dynamic headrest |
DE102007034496A DE102007034496A1 (en) | 2006-10-27 | 2007-07-24 | Dynamic headrest |
GB0720748A GB2443321A (en) | 2006-10-27 | 2007-10-24 | Dynamic headrest with a rotary actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/553,623 US20080100118A1 (en) | 2006-10-27 | 2006-10-27 | Dynamic headrest |
Publications (1)
Publication Number | Publication Date |
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US20080100118A1 true US20080100118A1 (en) | 2008-05-01 |
Family
ID=38829763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/553,623 Abandoned US20080100118A1 (en) | 2006-10-27 | 2006-10-27 | Dynamic headrest |
Country Status (3)
Country | Link |
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US (1) | US20080100118A1 (en) |
DE (1) | DE102007034496A1 (en) |
GB (1) | GB2443321A (en) |
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US20080129098A1 (en) * | 2006-12-04 | 2008-06-05 | Lear Corporation | Smartfold electronic actuation |
US20090224584A1 (en) * | 2008-03-04 | 2009-09-10 | Gm Global Technology Operations, Inc. | Active material actuated seat base extender |
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US10336231B2 (en) * | 2014-09-30 | 2019-07-02 | Cj Albert Builders Pty Ltd | Head and neck rest |
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US11091060B2 (en) * | 2019-01-10 | 2021-08-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Components with SMA-controlled hinge |
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DE102010012836B4 (en) * | 2009-03-25 | 2014-11-13 | Johnson Controls Gmbh | Adjustable headrest |
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2006
- 2006-10-27 US US11/553,623 patent/US20080100118A1/en not_active Abandoned
-
2007
- 2007-07-24 DE DE102007034496A patent/DE102007034496A1/en not_active Withdrawn
- 2007-10-24 GB GB0720748A patent/GB2443321A/en not_active Withdrawn
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US20070246285A1 (en) * | 2006-04-17 | 2007-10-25 | Gm Global Technology Operations, Inc. | Active material based conformable and reconfigurable seats |
US7758121B2 (en) * | 2006-04-17 | 2010-07-20 | Gm Global Technology Operations, Inc. | Active material based conformable and reconfigurable seats |
US8109567B2 (en) * | 2006-10-31 | 2012-02-07 | GM Global Technology Operations LLC | Active material actuated headrest utilizing bar linkage deployment system |
US20100140987A1 (en) * | 2006-10-31 | 2010-06-10 | Gm Global Technology Operations, Inc. | Active material actuated headrest utilizing bar linkage deployment system |
US20080129098A1 (en) * | 2006-12-04 | 2008-06-05 | Lear Corporation | Smartfold electronic actuation |
US7775596B2 (en) * | 2006-12-04 | 2010-08-17 | Lear Corporation | Smartfold electronic actuation |
US20090224584A1 (en) * | 2008-03-04 | 2009-09-10 | Gm Global Technology Operations, Inc. | Active material actuated seat base extender |
US8083287B2 (en) | 2008-08-27 | 2011-12-27 | Hyundai Motor Company | Headrest apparatus moveable in cooperation with seat back |
US7967375B2 (en) * | 2008-08-27 | 2011-06-28 | Hyundai Motor Company | Headrest apparatus moveable in cooperation with seat back |
US20110221238A1 (en) * | 2008-08-27 | 2011-09-15 | Hyundai Motor Company | Headrest apparatus moveable in cooperation with seat back |
US20100052372A1 (en) * | 2008-08-27 | 2010-03-04 | Hyundai Motor Company | Headrest Apparatus Moveable in Cooperation with Seat Back |
US20110095592A1 (en) * | 2009-05-06 | 2011-04-28 | Lear Corporation | Folding Vehicle Head Restraint Assembly |
US8348347B2 (en) | 2009-05-06 | 2013-01-08 | Lear Corporation | Folding vehicle head restraint assembly |
US8851574B2 (en) | 2009-05-06 | 2014-10-07 | Lear Corporation | Folding vehicle head restraint assembly |
US8641148B2 (en) | 2010-10-04 | 2014-02-04 | Lear Corporation | Movable head restraints for vehicle seats |
US8833860B2 (en) | 2010-10-04 | 2014-09-16 | Lear Corporation | Movable head restraints for vehicle seats |
US9561742B2 (en) | 2010-10-04 | 2017-02-07 | Lear Corporation | Movable head restraints for vehicle seats |
US20120235460A1 (en) * | 2011-03-16 | 2012-09-20 | Lear Corporation | Seat assembly having a moveable headrest assembly |
US8657380B2 (en) * | 2011-03-16 | 2014-02-25 | Lear Corporation | Seat assembly having a moveable headrest assembly |
US8899685B2 (en) | 2012-06-27 | 2014-12-02 | Porter Group, Llc | Vehicle seat headrest assembly having vertical and longitudinal adjustment |
US10384577B2 (en) * | 2012-07-06 | 2019-08-20 | Ts Tech Co., Ltd. | Seat device for vehicle and method for assembling same |
US10647234B2 (en) | 2012-07-06 | 2020-05-12 | Ts Tech Co., Ltd. | Seat device for vehicle and method of assembling same |
CN103538507A (en) * | 2013-08-02 | 2014-01-29 | 宁波继峰汽车零部件股份有限公司 | L-type automobile back headrest framework capable of being regulated in four directions |
US9573499B2 (en) | 2014-03-18 | 2017-02-21 | Bae Industries, Inc. | Headrest dump assembly integrated into a seatback |
US10336231B2 (en) * | 2014-09-30 | 2019-07-02 | Cj Albert Builders Pty Ltd | Head and neck rest |
US10046684B2 (en) * | 2016-03-25 | 2018-08-14 | Gill Industries, Inc. | Dual latch high pivot head restraint |
US11091060B2 (en) * | 2019-01-10 | 2021-08-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Components with SMA-controlled hinge |
US11338715B2 (en) * | 2020-05-28 | 2022-05-24 | Mark A. Gummin | Shape memory alloy latch release mechanism for vehicle head restraint |
Also Published As
Publication number | Publication date |
---|---|
GB0720748D0 (en) | 2007-12-05 |
GB2443321A (en) | 2008-04-30 |
DE102007034496A1 (en) | 2008-05-08 |
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