Vehicle seat assembly with airbag cradle

Abstract

A vehicle seat assembly is provided herein. The vehicle includes a seat base coupled to a seat back. A guide channel and an armrest are coupled to at least one of the seat back and the seat base. A cradle having an airbag is slidably coupled to the guide channel, wherein the cradle is operable between a stowed position and a use position. When in the stowed position, the cradle is disposed vehicle down of the armrest. When the cradle is in the use position, an airbag deployment side of the cradle is generally directed seat back of the seat assembly.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to vehicles, and more particularly, to vehicle seat assemblies. BACKGROUND

[0002] Autonomous vehicles create new expectations for occupants to move freely within the vehicle. This can challenge traditional wisdom of fixed airbag placement and use of traditional seat belts. SUMMARY

[0003] According to an aspect of the present disclosure, a vehicle seat assembly includes a seat base coupled to a seat back. A guide channel and an armrest are coupled to at least one of the seat back and / or the seat base. A cradle including an airbag is slidably coupled to the guide channel and is operable between a stowed position in which the cradle is disposed vehicle down of the armrest and a use position in which an airbag deployment side of the cradle is generally directed in a seat assembly rearward direction.

[0004] Embodiments of the first aspect of the invention can include any one or combination of the following features:

[0005] • the cradle further includes a panel that is pivotally coupled to the cradle and is configured to pivot open to allow the airbag to deploy out of the deployment side;

[0006] • the panel is configured to provide a reaction surface for the airbag;

[0007] • the vehicle seat assembly further includes a propulsion feature configured to move the cradle along the guide channel;

[0008] • the propulsion feature includes an electric motor; and

[0009] • the propulsion feature includes a pyrotechnic mechanism.

[0010] According to another aspect of the present disclosure, a seat assembly includes a seat base coupled to a seat back to generally define an occupant space. An armrest is coupled with the seat base. A guide channel is positioned between the seat base and the armrest. A cradle including an airbag is configured to move along the guide channel from a stowed position to a deployed position within the occupant space.

[0011] Embodiments of the second aspect of the invention can include any one or combination of the following features:

[0012] • the seat assembly further includes a propulsion feature configured to move the cradle along the guide channel;

[0013] • the guide channel is at least partially disposed within at least one of the seat base and the seat back;

[0014] • the guide channel is coupled to the armrest;

[0015] • the guide channel is at least partially disposed within at least one of the seat base and the seat back;

[0016] • a portion of the tray is disposed within the seat back when the tray is in the stowed position; and

[0017] • the seat assembly further comprises an anti-slip ramp coupled to the seat base.

[0018] According to yet another aspect of the disclosure, a seat assembly includes a seat base and a seat back coupled to the seat base to define an occupant space. A tray including a safety airbag is configured to move along a guide channel such that the safety airbag deploys into the occupant space.

[0019] Embodiments of the third aspect of the invention can include any one or combination of the following features:

[0020] • the tray is configured to slide along the guide channel;

[0021] • the tray further comprises an electrical energy distribution point;

[0022] • the seat assembly further comprises a propulsion feature configured to move the tray along the guide channel;

[0023] • the seat assembly further comprises a locking feature coupled to at least one of the tray and the guide channel, wherein the locking feature is configured to substantially prevent movement of the tray along the guide channel;

[0024] • the guide channel is at least partially disposed within at least one of the seat base and the seat back; and

[0025] • the guide channel is at least partially disposed within at least one of the seat base and the seat back;

[0026] These and other aspects, objects, and features of the present disclosure will be understood and appreciated by those skilled in the art upon reading the following specification, claims, and accompanying drawing. BRIEF DESCRIPTION OF DRAWINGS

[0027] In the drawings:

[0028] Figure 1 is a perspective view of a vehicle interior equipped with a seat assembly having a safety airbag tray according to one embodiment;

[0029] Figure 2A is a side elevation view of a seat assembly according to one embodiment, showing an occupant space defined by the seat assembly;

[0030] Figure 2B is a front elevation view of a seat assembly according to one embodiment, showing an occupant space defined by the seat assembly;

[0031] Figure 3 is a side perspective view of a seat assembly according to one embodiment, showing an airbag cradle operably coupled to a guide channel coupled with the seat assembly;

[0032] Figure 4A is a front elevation view of a seat assembly according to one embodiment, showing the cradle in a stowed position;

[0033] Figure 4B is a front elevation view of a seat assembly according to one embodiment, showing the cradle in a use position;

[0034] Figure 5A is a top down view of a seat assembly according to one embodiment shown in dashed lines, showing the cradle in a stowed position;

[0035] Figure 5B is a top down view of a seat assembly according to one embodiment shown in dashed lines, showing the cradle between a stowed position and a use position;

[0036] Figure 5C is a top down view of a seat assembly according to one embodiment, showing the cradle in a use position;

[0037] Figure 6 is a top down view of a seat assembly according to one embodiment shown in dashed lines with the cradle in a use position, showing a propulsion system, a propulsion feature, and a trailing portion of the cradle in the guide channel.

[0038] Figure 6A is a cross-sectional view taken along line VIA-VIA in Figure 6 , showing the guide channel, the propulsion feature, and the propulsion system below the armrest;

[0039] Figure 7A is a side elevation view of a seat assembly according to one embodiment, showing an airbag deployed from the cradle into the occupant space;

[0040] Figure 7B is a front elevation view of a seat assembly according to one embodiment, showing an airbag deployed from the cradle into the occupant space;

[0041] Figure 8 is a block diagram showing how a controller interacts with a vehicle; and

[0042] Figure 9 is a flowchart of a method of operating an airbag cradle according to one embodiment. DETAILED DESCRIPTION

[0043] Additional features and advantages of the present application will be set forth in the detailed description which follows, and in part will be readily apparent to those skilled in the art who practice the application, and which is further pointed out by the following description and claims, as well as by the appended drawings.

[0044] The term "and / or", as used in a permutation of two or more items, means that any of the listed items can be used individually, or any combination of two or more of the listed items can be used. For example, if a composition is described as containing components A, B, and / or C, the composition can contain A alone; B alone; C alone; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C.

[0045] In this document, relational terms such as first and second, top and bottom, and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any real such relationship or order between such entities or actions.

[0046] For purposes of this disclosure, the term "coupled" (in all of its forms: couple, coupled, coupling, etc.) generally means the joining of two components (electrical or mechanical) directly or indirectly to one another. Such joining can be stationary in nature or movable in nature. Such joining can be achieved with the two components (electrical or mechanical) formed as a single unitary body with one another or with the other (electrical or mechanical) component or with any additional intervening members. Unless otherwise stated, such joining can be permanent in nature or can be removable or releasable in nature.

[0047] The term "about", as used herein, means quantities, sizes, formulations, parameters, and other quantities and characteristics are not, and need not be, exact, but can be approximated and / or larger or smaller, as desired, reflecting tolerances, conversion factors, rounding off, measurement error and the like and other factors that are expected to be within the scope of one of skill in the art. When the term "about" is used in relation to a value or range of values, the disclosure should be understood to encompass the specific value or the endpoint of the range in question. Whether the end point of a numerical range or value is expressed as "about" is not intended to convey that the endpoint is inexact or that the endpoint is an approximation. It is also understood that the end point of each range is independently significant, and that the end point is independent of the other end point.

[0048] The terms “substantial,” “substantially,” and variations thereof as used herein are intended to note that a described feature is equal or approximately equal to a value or description. For example, a “substantially planar” surface is intended to denote a planar or approximately planar surface. Moreover, “substantially” is intended to denote that two values are equal or approximately equal. In some embodiments, “substantially” can denote values within about 10% of each other, such as within about 5% of each other, or within about 2% of each other.

[0049] The terms “the,” “a,” or “an,” as used herein, mean “at least one,” and should not be limited to only one unless explicitly indicated to the contrary. Thus, for example, reference to “a component” can include embodiments having two or more such components, unless the context explicitly indicates to the contrary.

[0050] Referring to Figures 1 to 9 , the vehicle 10 has a seat assembly 14. The seat assembly 14 includes a seat bottom 18 and a seat back 22 coupled to the seat bottom 18. An armrest 26 is coupled to the seat back 22 and / or the seat bottom 18. A guide channel 30 is coupled to at least one of the seat back 22 and the seat bottom 18. A cradle 34 including an airbag 38 is slidably coupled to the guide channel 30. The cradle 34 is operable between a stowed position disposed vehicle downwardly of the armrest 26 and a use position in which an airbag deployment side 42 of the cradle 34 is generally directed rearward of the seat assembly.

[0051] Referring now to Figure 1 and Figure 2A , the vehicle 10 includes a seat assembly 14. The seat assembly 14 can include a seat back 22 coupled to a seat bottom 18. The seat bottom 18 can include an anti-submarine ramp 20 configured to prevent a passenger from sliding under a safety restraint, such as a seat belt or an airbag 38, in the event of a vehicle collision or sudden stop. An armrest 26 can be coupled to the seat back 22 and / or the seat bottom 18.

[0052] The seat assembly 14 can be movable within the vehicle 10. For example, the seat assembly 14 can be movable in vehicle forward and rearward directions, as with typical vehicle seat assemblies. In some embodiments, the seat assembly 14 can be movable in various directions within the vehicle 10 and / or turned or rotated relative to the vehicle 10 such that the seat assembly 14 can face various vehicle directions.

[0053] Referring now to Figure 2A and Figure 2B , the seat bottom 18 and the seat back 22 can generally define a passenger space 46. In embodiments in which the seat assembly 14 includes an armrest 26, the passenger space 46 is laterally delineated by an inner side 28 of the armrest 26, as shown in Figure 2B .

[0054] Referring to Figure 3 , the guide channel 30 can be coupled to the seat assembly 14. In various embodiments, the guide channel 30 can be coupled to the seat base 18, the seat back 22, the armrest 26, and / or combinations thereof. In some embodiments, the guide channel 30 can be at least partially disposed within the seat back 22 and / or the seat base 18. In some embodiments, the guide channel 30 can be disposed between the armrest 26 and the seat base 18. In some embodiments, the guide channel 30 can be disposed below the armrest 26. In other words, the guide channel 30 can be disposed vehicle-downward of the armrest 26 and / or a portion of the armrest 26. The profile of the guide channel 30 can be generally tubular. In some embodiments, the guide channel 30 can have a curved, elongated portion. In some examples, the guide channel 30 can be partially disposed within and extend a certain lateral extent within the seat base 22, and partially disposed outside of and extend a generally longitudinal extent forwardly therefrom to below the armrest 26.

[0055] Further referring to Figure 3 , the seat assembly 14 can include a carriage 34. The carriage 34 can be movably coupled to the guide channel 30. In some embodiments, the carriage 34 can be slidably coupled to the guide channel 30. The carriage 34 can include a tail portion 36 configured to be in sliding engagement with the guide channel 30. In embodiments where the guide channel 30 is tubular in shape, the tail portion 36 can be engaged with the guide channel 30 such that at least a portion of the tail portion 36 can be positioned within the tubular portion of the guide channel 30. The tail portion 36 can be curved. As Figure 3 shown, in some embodiments, the guide channel 30 can have a keyway that corresponds to an attachment fin that couples the tail portion 36 to the carriage 34. In operation, the keyway receives the attachment fin to allow the tail portion 36 to slide into the guide channel 30 without the carriage 34 impeding movement.

[0056] Referring to Figures 4A to 5C , the carriage 34 can be operable between a stowed position and a use position. As Figure 4A and Figure 5A shown, in some embodiments, when in the stowed position, the carriage 34 can be disposed vehicle-downward of the armrest 26. In some embodiments, when in the stowed position, the carriage 34 can be disposed within the lateral bounds of the armrest 26. In such examples, when in the stowed position, the carriage 34 is generally hidden from view from a top-down perspective.

[0057] As Figure 4B , Figure 5C and Figure 6As shown, in some embodiments, when in the use position, the bracket 34 may be located within the occupant space 46. In some embodiments, the bracket 34 may be rotated approximately ninety degrees (90°) from the folded position to the use position. For example, the bracket 34 may be substantially parallel to the armrest 26 in the folded position and substantially perpendicular to the armrest 26 in the use position.

[0058] In various embodiments, the bracket 34 can be moved between a folded position and a use position by sliding along the guide channel 30. It is conceivable that in some embodiments, the bracket 34 can be moved between the folded position and the use position by using movements that are not sliding or movements other than sliding. For example, the bracket 34 can be moved between the folded position and the use position by pivoting, rotating, turning, extending, and / or combinations of these movements.

[0059] like Figure 5B As shown, in various embodiments, in addition to extending fully from the folded position to the use position, the bracket 34 may extend partially to a position between the folded and use positions. In the partially extended position, the bracket 34 may serve as a resting surface for passenger belongings or provide additional comfort to the seat occupant. In some embodiments, the partial extension of the bracket 34 may allow the occupant to utilize the power distribution point 50, which will be described in more detail below.

[0060] refer to Figure 6 and Figure 6A A propulsion feature 54, configured to move the bracket 34 between a retracted position and a used position, may be coupled to the seat assembly 14, the guide channel 30, and / or the bracket 34. In some embodiments, the propulsion feature 54 may be an electric motor. In some embodiments, the propulsion feature 54 may include a pyrotechnic mechanism. It is contemplated that the propulsion feature 54 may be at least one of a variety of other devices configured to move the bracket 34 between a retracted position and a used position.

[0061] refer to Figure 6 and Figure 6AA propulsion system 58 configured to engage with the propulsion feature 54 can be coupled to the carriage 34. The propulsion system 58 can be coupled to and / or engaged with the aft portion 36 of the carriage 34. It is contemplated that, in some embodiments, the propulsion system 58 can include at least one of a variety of devices (e.g., solenoid, piston assembly, etc.) that engage with the propulsion feature 54. In some embodiments, the propulsion system 58 can include a circulating ball race nut 60. The circulating ball race nut 60 can be coupled to the seat assembly 14 and / or the guide channel 30. Additionally, the circulating ball race nut 60 can be operatively coupled to the propulsion feature 54. The circulating ball race nut 60 can engage with a threaded drive screw 62. The threaded drive screw 62 can be curved. The threaded drive screw 62 can have a mechanically reversible thread. The threaded drive screw 62 can be coupled to the carriage 34. In some embodiments, the threaded drive screw 62 can be coupled to the aft portion 36 of the carriage 34.

[0062] In operation, the propulsion feature 54 can be configured to rotate the circulating ball race nut 60; the circulating ball race nut 60, in turn, drives the threaded drive screw 62, which subsequently moves the carriage 34. In examples where the threaded drive screw 62 has a mechanically reversible thread, the carriage 34 can move back and forth depending on the direction of rotation of the circulating ball race nut 60. In other words, the carriage 34 can move from the stowed position to the use position, and from the use position to the stowed position.

[0063] In some embodiments, the propulsion feature 54 can be controlled by the occupant. For example, the occupant can operate a switch configured to control the propulsion feature 54. In such examples, the occupant can engage the switch, which subsequently causes the propulsion feature 54 to power the extension of the carriage 34 and / or the retraction of the carriage 34. In some embodiments, the carriage 34 can be manually moved by the occupant. In this manner, the carriage 34 can be moved by the occupant without engaging the propulsion feature 54.

[0064] Further reference is made to Figures 6 to 6AThe locking feature 68 can be coupled to the tray 34 and / or the guide channel 30. The locking feature 68 can be configured to substantially prevent movement of the tray 34 along the guide channel 30. The locking feature 68 can include at least one of a series of mechanisms (e.g., pins, detents, claws, pawls, abutments, etc.) configured to prevent movement. In some embodiments, the locking feature 68 can include the propulsion feature 54 (e.g., an electric motor). For example, the electric motor configured to move the tray 34 can also lock the tray 34 in place by continuous actuation after the tray 34 is fully extended into the use position. In some embodiments, the locking feature 68 can be manually engaged and / or disengaged by the occupant. For example, the locking feature 68 can be engaged and / or disengaged by operation of a switch. In some embodiments, the locking feature 68 is engaged by default and the tray 34 can be moved when the locking feature 68 is disengaged. In some embodiments, the locking feature 68 can be engaged and / or disengaged by the controller 70, which will be discussed in greater detail below.

[0065] In some embodiments, the locking feature 68 can be engaged and / or disengaged when the tray 34 is in the stowed position and / or the use position. In some embodiments, the locking feature 68 can be engaged and / or disengaged when the tray 34 is between the stowed position and the use position. In some embodiments, the locking feature 68 can be engaged when the tray 34 is in the stowed position and / or the use position and / or between the stowed position and the use position.

[0066] Referring now to Figure 3 and Figures 7A to 7B The tray 34 can include an airbag 38. The airbag 38 can be disposed within the tray 34 and configured to deploy out of the tray 34. In some embodiments, the airbag 38 can be configured to deploy into the occupant space 46 when the tray 34 is in the use position. In some embodiments, the airbag 38 can be configured to deploy only when the tray 34 is in the use position. The airbag 38 can be deployed by at least one of a series of mechanisms (e.g., pyrotechnic mechanisms) known to those of ordinary skill in the art for deploying airbags.

[0067] In various embodiments, the tray 34 can include an airbag deployment side 42, the airbag 38 can be configured to deploy out of the airbag deployment side 42. The airbag deployment side 42 can be located on the inner side 34A of the tray 34, as shown in Figure 6 In some embodiments, the airbag deployment side 42 of the tray 34 points laterally inward relative to the seat assembly 14 when the tray 34 is in the stowed position. In some embodiments, the airbag deployment side 42 of the tray 34 can point rearward of the seat assembly when the tray 34 is in the use position.

[0068] Referring now toFigures 7A to 7B In some embodiments, the release portion 56 can deform and / or open prior to and / or as the airbag 38 deploys. In some embodiments, the force of the airbag 38 deploying can cause the release portion 56 to deform and / or open. As shown in FIG. 3, in some embodiments, the release portion 56 can be a panel 48 pivotally coupled to the console 34. The panel 48 can deform and / or open prior to the airbag 38 deploying by pivoting about a pivot axis 48A or by the deployment force of the airbag 38. In some examples, the pivot axis 48A of the panel 48 can point generally in the same direction as the length of the armrest 26 when the console 34 is in the stowed position. In some examples, the pivot axis 48A of the panel 48 can point generally in a direction orthogonal to the length of the armrest 26 when the console 34 is in the use position. In some embodiments, the release portion 56 can be a seam in the console 34 that is perforated and / or made of a relatively weak material that deforms and / or opens as the airbag 38 deploys. It is contemplated that, in some embodiments, the release portion 56 can include at least one of a variety of mechanisms suitable for releasing the airbag 38. The opening and / or deformation of the release portion 56 can provide a gap 64 in the console 34. The airbag 38 can deploy out of the console 34 through the gap 64. Figures 7A to 7B

[0069] In various embodiments, the console 34 can include a reaction surface 40 configured to provide directional support to the airbag 38 as the airbag 38 deploys. In some embodiments, the reaction surface 40 can be the console 34. As shown in FIG. 3, in some embodiments, the reaction surface 40 can be defined by the open release portion 56. In some examples, the reaction surface 40 can be the panel 48. The panel 48 can provide directional support to the airbag 38 by pivoting open prior to the airbag 38 deploying or as a result of the airbag 38 deploying, then limiting the airbag 38 from moving forward. In some embodiments, the panel 48 can pivot open in a seat assembly forward direction. It is contemplated that, in some embodiments, the panel 48 can pivot open in various seat assembly directions. Figure 7A Figure 7B

[0070] As shown in FIG. 3, in some embodiments, the reaction surface 40 can be defined by the open release portion 56. In some examples, the reaction surface 40 can be the panel 48. The panel 48 can provide directional support to the airbag 38 by pivoting open prior to the airbag 38 deploying or as a result of the airbag 38 deploying, then limiting the airbag 38 from moving forward. In some embodiments, the panel 48 can pivot open in a seat assembly forward direction. It is contemplated that, in some embodiments, the panel 48 can pivot open in various seat assembly directions. Figure 3 ​​​As depicted and described above, the cradle 34 can include an electrical power distribution point 50. The electrical power distribution point 50 can be configured to charge a remote electronic device, such as a cellular mobile phone. In some embodiments, the electrical power distribution point 50 can be configured to allow data to be transmitted to and from the remote electronic device. The electrical power distribution point 50 can be a standard automobile outlet port, a USB port, a wireless charging surface, and / or any suitable mechanism known to those of ordinary skill in the art for transmitting electrical power and / or data to and from a remote electronic device.

[0071] Reference is now made to Figure 8 As described above, the seat assembly 14 is further shown as having a controller 70 that receives various inputs 78 and controls various outputs. According to various embodiments, the controller 70 can include a microprocessor 72 and a memory 74 as shown. It should be appreciated that the controller 70 can include control circuitry, such as analog and / or digital control circuitry. Stored within the memory 74 and executed by the microprocessor 72 is logic 76 for processing the various inputs 78 and controlling the various outputs described herein. The inputs 78 to the controller 70 can include an occupant presence signal 80 that can be obtained by one or more occupant sensors or from another controller and can indicate whether an occupant is present in the seat assembly 14. Whether an occupant is present in the seat assembly 14 can be determined by a variety of methods and / or by a variety of features (e.g., weight sensors, proximity sensors, etc.). Additionally, the controller 70 can receive a cradle position signal 82 as an input 78. The cradle position signal 82 can be obtained from another controller and can indicate the position of the cradle 34. For example, the cradle position signal 82 can indicate that the cradle 34 is in the stowed position, in the use position, or in a position between the stowed position and the use position. Additionally, the controller 70 can receive a threat prediction signal 84 as an input 78.

[0072] The threat prediction signal 84 can indicate a variety of conditions. In some embodiments, the threat prediction signal 84 indicates the likelihood of a collision. In other words, the threat prediction signal 84 can indicate the likelihood of a collision of the vehicle 10 with an object outside of the vehicle 10. The likelihood of a collision can be determined by considering at least one of a number of factors, which can include, but are not limited to, the speed of the vehicle 10, the proximity of the vehicle 10 to the object, the size and / or shape of the object, the proximity of the vehicle 10 to the object, the direction of movement of the vehicle 10 relative to the object, the direction of movement of the object relative to the vehicle 10, and / or the speed of movement of the object. The factors of the likelihood of a collision can be determined by a variety of devices, which can include, but are not limited to, cameras, proximity sensors, and / or radar sensors. It is contemplated that a variety of other features can be employed to determine the factors of the likelihood of a collision.

[0073] With further referenceFigure 8 In some embodiments, the input 78 to the controller 70 can include various other signals, such as signals from other controllers within the vehicle 10, and / or signals sent to the controller 70 through occupant activated switches.

[0074] In some embodiments, the input 78 to the controller 70 can include various other signals, such as signals from other controllers within the vehicle 10, and / or signals sent to the controller 70 through occupant activated switches.

[0075] The controller 70 can also interface with, interact with, and / or control various other components of the vehicle 10 (e.g., the seat assembly 14, the propulsion feature 54, the airbag 38, the locking feature 68, etc.) and the functionality of those components (e.g., movement, movement speed, activation, engagement, deployment, etc.) directly and / or through communication with another controller. For example, the controller 70 can facilitate movement of the cradle 34 from the stowed position to the use position and deployment of the airbag 38 from the cradle 34. In some examples, the controller 70 can facilitate such actions by receiving the input 78 (e.g., the threat prediction signal 84) and executing the logic 76 stored within the memory 74 with the microprocessor 72.

[0076] Referring to Figure 9 A method of operating an airbag cradle 110 is disclosed. The method can include a step 112 of receiving at least one input 78. As discussed above, the controller 70 can receive the input 78 from various sources. In various embodiments, the input 78 can include the occupant presence signal 80, the cradle position signal 82, the threat prediction signal 84, and / or various other signals. In some embodiments, upon receiving the threat prediction signal 84, the controller 70 can classify the threat prediction signal 84 into at least one of a plurality of threat levels 88 (e.g., a first threat level 90, a second threat level 92, and a third threat level 94). The controller 70 can determine a change in the threat level 88. In some embodiments, the controller 70 can determine the change in the threat level 88 by utilizing the logic 76 within the memory 74 and / or the microprocessor 72.

[0077] Next, the method of operating the airbag carrier 110 can include a step 114 of moving the carrier 34. As discussed above, the carrier 34 can be moved between a stowed position and a use position. In various embodiments, the carrier 34 can be moved along the guide channel 30. In some embodiments, the carrier 34 is moved along the guide channel 30 by sliding.

[0078] The carrier 34 can be moved by the propulsion feature 54 and / or the propulsion feature 54 working in tandem with the propulsion system 58. As discussed previously, the propulsion feature 54 can include a variety of means for moving the carrier 34, such as an electric motor according to one embodiment, or a pyrotechnic mechanism according to another embodiment.

[0079] In various embodiments, the carrier 34 can be moved in response to the controller 70 receiving at least one input 78. In some embodiments, the carrier 34 can be moved from the stowed position to a position between the stowed position and the use position in response to the occupant presence signal 80. In some embodiments, the carrier 34 can be moved from the stowed position to the use position in response to the threat prediction signal 84, classifying the threat prediction signal 84 into one of the threat levels 88, and / or determining a change in the threat level 88. For example, the carrier 34 can be moved from the stowed position to the use position in response to the controller 70 determining that the threat prediction signal 84 is reclassified from a first threat level 90 to a second threat level 92. In some examples, the carrier 34 can be moved toward the stowed position in response to a change in the threat level 88.

[0080] In some embodiments, the speed at which the carrier 34 moves between the stowed position and the use position can depend on the input 78 received by the controller 70. For example, in some embodiments, the speed at which the carrier 34 moves in response to the threat prediction signal 84, the threat level 88, and / or a change in the threat level 88 can be greater than the speed at which the carrier 34 moves in response to the occupant presence signal 80.

[0081] In some embodiments, the carrier 34 moving from the stowed position to the use position can expose the electrical energy distribution point 50 disposed on the carrier 34. In other words, when the carrier 34 is in the stowed position, the electrical energy distribution point 50 can be hidden from view of the seat occupant, inconveniently positioned for the seat occupant, easily accessible to the seat occupant, and / or substantially accessible to the seat occupant. Thus, when the carrier 34 is in the use position, the electrical energy distribution point 50 can be presented to the seat occupant, more conveniently positioned for use by the seat occupant, more easily accessible to the seat occupant, and / or substantially accessible to the seat occupant.

[0082] Further reference is made to Figure 9The method of operating the airbag cradle 110 can include a step 116 of locking the cradle 34 via the locking feature 68. The cradle 34 can be locked in the appropriate position among the stowed position and the use position and the various positions including the stowed position and the use position. As discussed above, the cradle 34 can be locked in the appropriate position by the locking feature 68, which in some embodiments can include the propulsion feature 54 (e.g., an electric motor).

[0083] In some embodiments, the cradle 34 can be locked in the appropriate position via the locking feature 68 in response to the controller 70 receiving the at least one input 78. In some embodiments, the cradle 34 can become locked in the appropriate position by the locking feature 68 in response to the cradle position signal 82. For example, the cradle 34 can become locked in the appropriate position in response to the cradle position signal 82 indicating that the cradle 34 is in the use position and / or the cradle position signal 82 indicating that the cradle 34 is in the stowed position. In some embodiments, the cradle 34 can become locked by the locking feature 68 in response to the threat prediction signal 84, the classification of the threat prediction signal 84 into at least one of the threat levels 88, and / or the determination of a change in the threat levels 88. For example, the cradle 34 can become locked in the appropriate position relative to the guide channel 30 by the locking feature 68 in response to the controller 70 determining that the threat prediction signal 84 is reclassified from a first threat level 90 to a second threat level 92. In some embodiments, the cradle 34 can be stopped from being locked in the appropriate position by the locking feature 68 in response to the controller 70 receiving the at least one input 78.

[0084] Next, the method of operating the airbag cradle 110 can include a step 118 of opening the release portion 56 of the cradle 34. As discussed above, the release portion 56 can be opened by deforming. For example, the release portion 56 can deform and thus open under the force generated by the deployment of the airbag 38. In various embodiments, the release portion 56 can open to provide the gap 64 through which the airbag 38 can deploy. As discussed above, in some embodiments, the release portion 56 can be a panel 48 pivotally coupled to the cradle 34. The panel 48 can open by pivoting about the pivot axis 48A.

[0085] Next, the method of operating the airbag cradle 110 can include a step 120 of deploying the airbag 38. In various embodiments, the airbag 38 can deploy through the gap 64. As discussed above, in various embodiments, the airbag 38 can be configured to deploy into the occupant space 46 when the cradle 34 is in the use position. In some embodiments, the airbag 38 can be configured to deploy in the seat assembly rearward direction when the cradle 34 is in the use position. In some embodiments, the airbag 38 can be configured to deploy only when the cradle 34 is in the use position.

[0086] In various embodiments, the airbag 38 can be configured to deploy in response to the controller 70 receiving at least one input 78. In some embodiments, the airbag 38 can be configured to deploy in response to the threat prediction signal 84, classifying the threat prediction signal 84 into at least one of the threat levels 88, and / or determining a change in the threat level 88. For example, the airbag 38 can deploy in response to the controller 70 determining that the threat prediction signal 84 is reclassified from the second threat level 92 to the third threat level 94.

[0087] Next, the method of operating the airbag cradle 110 can include a step 122 of supporting the airbag 38 with the reaction surface 40. In some embodiments, the reaction surface 40 can be defined by the open release portion 56. In some examples, the reaction surface 40 can be the panel 48. The panel 48 can support the airbag 38 by pivoting open prior to deployment of the airbag 38 and / or as a result of deployment of the airbag 38. The panel 48 can then limit the airbag 38 from moving forward of the seat assembly. In other words, the release portion 56 can provide directional support to the airbag 38. Supporting the airbag 38 with the reaction surface 40 can benefit the occupant in the event of a crash by allowing the airbag 38 to press against the reaction surface 40, effectively providing a relatively stable cushion to the occupant.

[0088] It should be appreciated that the steps of the method of operating the airbag cradle 110 need not be performed in the order listed above, unless otherwise specified in the claims.

[0089] Various advantages can be provided using the present disclosure. First, the airbag 38 within the cradle 34 can deploy in the event of a crash to protect the occupant. Second, the cradle 34 coupled to the seat assembly 14 and having the airbag 38 can deploy into the occupant space 46, providing a consistent deployment of the airbag system into the occupant space 46 regardless of the position of the seat assembly 14 within the vehicle 10. Third, the cradle 34 can provide a location for resting arms or other items (e.g., books, phones, etc.) when in the use position or between the use position and the stowed position.

[0090] It should be appreciated that changes and modifications can be made to the above-described structures, and also that the above-described contributing concepts can be applied to other structures, without departing from the concept of the present disclosure, and it is intended to cover in the appended claims all such changes and modifications that are within the scope of these contributing concepts.

[0091] According to the present invention, a vehicle seat assembly is provided having a seat base coupled to a seat back; a guide channel and an armrest coupled to at least one of the seat back and the seat base; and a cradle including an airbag and slidably coupled to the guide channel, wherein the cradle is operable between a stowed position disposed vehicle downwardly of the armrest and a use position in which an airbag deployment side of the cradle is generally directed rearward of the seat assembly.

[0092] According to one embodiment, the above invention is further characterized by a panel pivotally coupled to the cradle and configured to pivot open to allow the airbag to deploy out of the airbag deployment side.

[0093] According to one embodiment, the panel is configured to provide a reaction surface for the airbag.

[0094] According to one embodiment, the above invention is further characterized by a propulsion feature configured to move the cradle along the guide channel.

[0095] According to one embodiment, the propulsion feature includes an electric motor.

[0096] According to one embodiment, the propulsion feature includes a pyrotechnic mechanism.

[0097] According to the present invention, a seat assembly is provided having a seat base; a seat back coupled to the seat base to generally define an occupant space; an armrest coupled with the seat base; a guide channel positioned between the seat base and the armrest; and a cradle including an airbag and configured to move along the guide channel from a stowed position to a deployed position within the occupant space.

[0098] According to one embodiment, the above invention is further characterized by a propulsion feature configured to move the cradle along the guide channel.

[0099] According to one embodiment, the guide channel is generally tubular.

[0100] According to one embodiment, the guide channel is coupled to the armrest.

[0101] According to one embodiment, the guide channel is at least partially disposed within at least one of the seat base and the seat back.

[0102] According to one embodiment, a portion of the cradle is disposed within the seat back when the cradle is in the stowed position.

[0103] According to one embodiment, the present application is further characterized by a submarine escape ramp coupled to the seat base.

[0104] According to the present application, a seat assembly is provided having a seat base; a seat back coupled to the seat base to define an occupant space; and an armrest including an airbag and configured to move along a guide channel such that the airbag deploys into the occupant space.

[0105] According to one embodiment, the carriage is configured to slide along the guide channel.

[0106] According to one embodiment, the present application is further characterized by an electrical energy distribution point.

[0107] According to one embodiment, the above-described application is further characterized by a propulsion feature configured to move the carriage along the guide channel.

[0108] According to one embodiment, the above-described application is further characterized by a locking feature coupled to at least one of the carriage and the guide channel, wherein the locking feature is configured to substantially prevent movement of the carriage along the guide channel.

[0109] According to one embodiment, the guide channel is at least partially disposed within at least one of the seat base and the seat back.

[0110] According to one embodiment, the guide channel is generally tubular.

Claims

1. A vehicle seat assembly comprising: a seat base coupled to a seat back; a guide channel and an armrest coupled to at least one of the seat back and the seat base; and a tray comprising an airbag and slidably coupled to the guide channel, wherein the tray is operable between a stowed position disposed vehicle downward of the armrest and a use position in which a side of the airbag of the tray is generally directed rearward of the seat assembly; a panel pivotally coupled to the tray and configured to pivot open to allow the airbag to deploy out of the tray and the panel is configured to provide a reaction surface to the airbag; the reaction surface is configured to provide directional support to the airbag as it deploys; the reaction surface can limit movement of the airbag forward of the seat assembly.

2. The vehicle seat assembly of claim 1, further comprising: a propulsion feature configured to move the tray along the guide channel.

3. The vehicle seat assembly of claim 2, wherein the propulsion feature comprises an electric motor.

4. The vehicle seat assembly of claim 2, wherein the propulsion feature comprises a pyrotechnic mechanism. ​

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