Patent Application
20200031262
This disclosure relates to a headrest assembly for a seat in a vehicle.
Headrests are configured to be positioned relative to the back of an occupant's head and neck. Known headrests can be vertically adjusted by raising and lowering a head restraint to accommodate occupants of different heights.
Some known headrest assemblies include a rod having two vertical portions, and further include dedicated locks relative to each vertical portion. In order to adjust the position of the headrest, an occupant is required to activate both locks simultaneously, which requires use of both of the occupant's hands.
A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a rod configured to connect the headrest assembly to a seat back. The rod includes a first vertical portion and a second vertical portion, which each have a plurality of recesses. The headrest assembly further includes a head restraint including a pushing plate having a first locking portion and a second locking portion. The first and second locking portions selectively engage the recesses of the first and second vertical portions, respectively, to adjust a vertical position of the head restraint.
In a further non-limiting embodiment of the foregoing headrest assembly, the head restraint includes a push button configured to move the pushing plate when depressed.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the pushing plate is moveable between an engaged position and a disengaged position by the push button.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, in the engaged position, the first and second locking portions are engaged with the recesses of the first and second vertical portions to prevent a vertical adjustment of the head restraint.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, in the disengaged position, the first and second locking portions are disengaged from the recesses of the first and second vertical portions to permit vertical adjustment of the head restraint.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the pushing plate is moveable in a direction substantially perpendicular to the first and second vertical portions of the rod by the push button.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the pushing plate is biased toward the engaged position.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the first and second locking portions are provided by first and second locking plates, respectively.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the first and second locking portions are carried by the pushing plate.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the head restraint includes a plurality of springs configured to urge the pushing plate to the engaged position.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the head restraint includes a first cover and a second cover, the first and second covers are connected together and provide an interior space, and the pushing plate is provided entirely in the interior space.
In a further non-limiting embodiment of any of the foregoing headrest assemblies, the first cover and the second cover support a cushion and an encasement.
A seat for a motor vehicle according to an exemplary aspect of the present disclosure includes, among other things, a seat back and a headrest assembly. The headrest assembly includes, among other things, a rod configured to connect the headrest assembly to a seat back. The rod includes a first vertical portion and a second vertical portion, which each have a plurality of recesses. The headrest assembly further includes a head restraint including a pushing plate having a first locking portion and a second locking portion. The first and second locking portions selectively engage the recesses of the first and second vertical portions, respectively, to adjust a vertical position of the head restraint.
In a further non-limiting embodiment of the foregoing seat, the head restraint includes a push button configured to move the pushing plate when depressed, the pushing plate is moveable in a direction substantially perpendicular to the first and second vertical portions by the push button, and the pushing plate is biased toward the engaged position.
In a further non-limiting embodiment of any of the foregoing seats, the pushing plate is moveable between an engaged position and a disengaged position by the push button.
In a further non-limiting embodiment of any of the foregoing seats, in the engaged position, the first and second locking portions are engaged with the recesses of the first and second vertical portions to prevent vertical adjustment of the head restraint, and in the disengaged position, the first and second locking portions are disengaged from the recesses of the first and second vertical portions to permit vertical adjustment of the head restraint.
In a further non-limiting embodiment of any of the foregoing seats, the first and second locking portions are provided by first and second locking plates, respectively.
In a further non-limiting embodiment of any of the foregoing seats, the head restraint includes a plurality of springs configured to urge the pushing plate to the engaged position.
In a further non-limiting embodiment of any of the foregoing seats, the head restraint includes a first cover and a second cover, wherein the first and second covers are connected together and provide an interior space therebetween, and wherein the pushing plate is provided entirely in the interior space.
In a further non-limiting embodiment of any of the foregoing seats, the first cover and the second cover support a cushion and an encasement.
The embodiments, examples and alternatives of the preceding paragraphs, the claims, or the following description and drawings, including any of their various aspects or respective individual features, may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments, unless such features are incompatible.
This disclosure generally relates to a headrest assembly for a seat in a vehicle. In one example of the present disclosure, the headrest assembly includes a head restraint having a vertically adjustable position relative to a seat back. The head restraint includes a pushing plate, which includes first and second locking portions configured to selectively engage respective recesses.
Providing the first and second locking portions on a common pushing plate allows an occupant to adjust the vertical position of the head restraint relatively easily by depressing a single button. The occupant can depress the button using a single finger from one hand, for example, which frees the occupant's other hand to adjust the vertical position of the headrest assembly. In some instances, the occupant can adjust the headrest assembly without needing to turn around and face the headrest assembly. That is, the occupant can reach over his or her shoulders while still facing forward to make the adjustment. The disclosed arrangement also provides a simplified head restraint, which reduces cost and increases manufacturability.
The “raise” and “lower” directions are labeled in
While not illustrated in
The rod 30 includes an upper portion 46 surrounded by the first and second covers 34, 36 and received in the interior space 38, and a lower portion 48 configured to couple to the seat back 24. The rod 30 is generally configured to remain fixed relative to the seat back 24. The head restraint 28 is configured to selectively move along the rod 30 in the “raise” and “lower” directions when the push button 32 is depressed. The push button 32 is support by at least one of the first and second covers 34, 36.
As shown in
In this example, the head restraint 28 includes a pushing plate 60 having a first locking portion 62 and a second locking portion 64. In this example, the pushing plate 60 is a single structure including, or supporting, the first and second locking portions 62, 64. In one example, the first and second locking portions 62, 64 are separate structures connected to the pushing plate 60, and in another example the first and second locking portions 62, 64 are integrally formed with the pushing plate 60. In one particular example, the pushing plate 60 is formed of a single piece of plastic material, and the first and second locking portions are provided from metallic material. The first and second locking portions 62, 64 are configured to selectively engage the recesses 56, 58 of the first and second vertical portions 50, 52, respectively, to adjust a vertical position of the head restraint 28.
In this example, the pushing plate 60 is configured to move in a horizontal direction between an engaged position and a disengaged position by the push button 32. In
In this example, the pushing plate 60 is biased toward the engaged position by a plurality of biasing elements 66. In the engaged position, the first and second locking portions 62, 64 are received in the recesses 56, 58 under the force of the biasing elements 66, which urge the pushing plate 60 in the direction D2, such that vertical adjustment of the head restraint 28 is prevented. When the push button 32 is depressed such that the force of the biasing elements 66 is overcome, the push plate 60 moves in the direction D1 to the disengaged position. In this position, the locking portions 62, 64 are not received in the recesses 56, 58, which allows vertical adjustment of the head restraint 28 in the “raise” and “lower” directions. When the vertical position of the head restraint 28 is set, the occupant releases the push button 32, and the biasing elements 66 urge the push plate 60 in the direction D2 back to the engaged position.
In this example, the plate 68 is received in a slot 70 of the push plate 60. The push plate 60 further includes a rod opening 72 sized to allow the plate 68 to selectively engage the recesses 58 and to allow movement of the push plate 60 in the directions D1, D2.
Further, in this example, the plate 68 includes a plurality of projections 74 for supporting an end of a biasing element 66. In this example, the biasing element 66 is a coil spring received over the projection 74. The biasing elements are also received, at an opposite end, over projections 76, 78 formed in the first and second covers 34, 36 respectively. While
It should be understood that terms such as “vertical” and “horizontal” are used above with reference to the normal, upright position of a car seat in a vehicle. These terms have been used herein for purposes of explanation, and should not be considered otherwise limiting. Terms such as “generally,” “substantially,” and “about” are not intended to be boundaryless terms, and should be interpreted consistent with the way one skilled in the art would interpret those terms.
Although the different examples have the specific components shown in the illustrations, embodiments of this disclosure are not limited to those particular combinations. It is possible to use some of the components or features from one of the examples in combination with features or components from another one of the examples.
One of ordinary skill in this art would understand that the above-described embodiments are exemplary and non-limiting. That is, modifications of this disclosure would come within the scope of the claims. Accordingly, the following claims should be studied to determine their true scope and content.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2016/103544 | 10/27/2016 | WO | 00 |
