Seat components and support parts

By designing a support portion including a main part and an extension and connecting it with the seat back frame, the problem of insufficient support of the existing seat assembly is solved, and more effective user support and comfort are achieved.

CN117426635BActive Publication Date: 2025-03-28LEAR CORP
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Patent Information

Application Number
CN202310832032.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2022-07-21
Filing Date
2023-07-07
Publication Date
2025-03-28
Estimated Expiration
2043-07-07

AI Technical Summary

Technical Problem

Existing seat assembly and support sections may be designed with complexity and do not provide sufficient support, resulting in discomfort and unprotected users in the seat.

Method used

A support portion is designed, including a first and a second main portion, with a gap provided between the two and connected to the seat back frame through a plurality of first and second extensions to ensure that the gap is aligned with the user's spine and provide more effective support.

Benefits of technology

With this design, the support portion can more effectively limit the pressure on the user's spine and bone protrusions, improving the user's comfort and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a seat assembly and a support portion. A support portion for a seat assembly includes, in some configurations, a first main portion and a second main portion, the first main portion and the second main portion being configured so as to provide a gap between the first main portion and the second main portion. In some configurations, the support portion includes a plurality of first extensions protruding from the first main portion away from the gap; the support portion includes a plurality of second extensions protruding from the second main portion away from the gap; the first main portion and the second main portion are configured to extend along opposite sides of a user's spine so that the gap is aligned with the spine; and / or the plurality of first extensions and the plurality of second extensions are configured to connect to a seat back frame.
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Description

Technical Field

[0001] The present disclosure generally relates to seat assemblies and support portions for seat assemblies, including seat assemblies for vehicles. background

[0002] This background description is set forth below for the purpose of providing context only. Therefore, no aspect of this background description is admitted, either explicitly or implicitly, to be prior art to the present disclosure to the extent it is not otherwise qualified as prior art.

[0003] Some seat assembly and / or support portion designs may be relatively complex and / or may not provide sufficient support to adequately and / or comfortably support a user of the seat assembly.

[0004] There is a desire for solutions / options that minimize or eliminate one or more challenges or disadvantages of seat assemblies and / or support portions.The foregoing discussion is intended only to illustrate examples of the art and is not an admission of scope.

[0005] Overview

[0006] In some embodiments, a support portion for a seat assembly includes a first main portion and a second main portion, the first main portion and the second main portion being configured so that a gap is provided between the first main portion and the second main portion, wherein the support portion includes a plurality of first extensions protruding from the first main portion away from the gap; the support portion includes a plurality of second extensions protruding from the second main portion away from the gap; the first main portion and the second main portion are configured to extend along opposite sides of a user's spine so that the gap is aligned with the spine; and / or the plurality of first extensions and the plurality of second extensions are configured to be connected to a seat back frame.

[0007] According to some embodiments, a seat assembly includes a support portion and a seat back frame, wherein the support portion includes a first main portion and a second main portion, the first main portion and the second main portion being configured so that a gap is provided between the first main portion and the second main portion; the support portion includes a plurality of first extensions protruding from the first main portion away from the gap; the support portion includes a plurality of second extensions protruding from the second main portion away from the gap; the first main portion and the second main portion are configured to extend along opposite sides of a user's spine so that the gap is aligned with the spine; the plurality of first extensions and the plurality of second extensions are configured to be connected to the seat back frame; and / or the plurality of first extensions and the plurality of second extensions can be connected to the seat back frame.

[0008] The foregoing and other possible aspects, features, details, utilities and / or advantages of examples / embodiments of the present disclosure will be apparent by reading the following description and by examining the accompanying drawings.

[0009] This application also involves the following:

[0010] Item 1. A support portion for a seat assembly, comprising:

[0011] The first major part;

[0012] a second main portion, the second main portion being arranged such that a gap is provided between the first main portion and the second main portion;

[0013] a plurality of first extensions protruding from the first main portion away from the gap; and

[0014] a plurality of second extensions, the plurality of second extensions protruding from the second main portion away from the gap;

[0015] wherein the first main portion and the second main portion are configured to extend along opposite sides of a spine of a user such that the gap is aligned with the spine; and

[0016] The plurality of first extensions and the plurality of second extensions are configured to be coupled to a seat back frame.

[0017] Item 2. The support portion according to Item 1, wherein:

[0018] an end of the first main portion and an end of the second main portion each configured to be connected to a cross member of the seat back frame;

[0019] The plurality of first extensions each have a free end portion configured to be connected to a first side member of the seat back frame; and

[0020] The plurality of second extensions each have a free end configured to be connected to a second lateral member of the seat back frame.

[0021] Item 3. A support portion according to Item 1, wherein the first main portion and the second main portion are configured as longitudinal members, and the longitudinal members are configured to flex away from each other under the weight of the user to increase the width of the gap and cushion the user.

[0022] Item 4. The support portion of Item 1, wherein the first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions comprise a material having a lattice and / or a porous structure.

[0023] Item 5. The support portion of Item 1, wherein the plurality of first extensions and the plurality of second extensions are configured to limit pressure on bony prominences of the user.

[0024] Item 6. The support portion of Item 1, wherein at least some of the plurality of first extensions and at least some of the plurality of second extensions are configured to support a lumbar region of the user.

[0025] Item 7. The support portion according to Item 1, wherein:

[0026] The plurality of first extensions include a pair of first extensions;

[0027] The pair of first extensions are arranged adjacent to each other;

[0028] providing a second gap between the pair of first extensions;

[0029] The pair of first extensions are configured to be connected to the seat back frame such that the second gap is aligned with a shoulder blade protrusion of the user to limit pressure on the shoulder blade protrusion.

[0030] Item 8. A support portion according to Item 1, wherein the first main portion, the second main portion, at least one of the plurality of first extensions and the plurality of second extensions includes a reinforcement area, and the reinforcement area is configured to be connected to one or more of an air bag, a fan, a duct, the seat back frame, a cushion and / or a cable.

[0031] Item 9. The support portion of Item 1, comprising one or more airbags directly connected to at least one of the first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions.

[0032] Item 10. The support portion according to Item 1, comprising a transverse portion extending between and connecting the first main portion and the second main portion, wherein the transverse portion is configured to constrain the deflection of the first main portion and the second main portion under the weight of the user, at least to a certain extent.

[0033] Item 11. A support portion according to item 10, wherein the lateral portion is arranged at or around the ends of the first main portion and the second main portion, and the first main portion and the second main portion are configured to be arranged in the waist region of the user.

[0034] Item 12. The support portion according to Item 11 comprises a plurality of generally V-shaped connecting portions extending between and connecting the first main portion and the second main portion, wherein the plurality of connecting portions are more flexible than the lateral portion.

[0035] Item 13. The support portion according to Item 1 includes a plurality of roughly V-shaped connecting portions extending between and connecting the first main portion and the second main portion, wherein the plurality of connecting portions are configured to deform under the weight of the user to facilitate the first main portion and the second main portion to flex away from each other, thereby increasing the width of the gap and cushioning the user.

[0036] Item 14. The support portion of Item 13, wherein the plurality of connecting portions are more flexible than the first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions.

[0037] Item 15. The support portion of Item 13, wherein at least one of the plurality of connection portions comprises:

[0038] a first substantially linear portion extending from said first main portion;

[0039] a second substantially linear portion extending from the second main portion; and

[0040] A joining portion connects the first substantially linear portion and the second substantially linear portion.

[0041] Item 16. The support portion of Item 13, wherein at least one of the plurality of connection portions is curved and includes at least two inflection points such that the at least one connection portion forms a bell curve shape.

[0042] Item 17. The support portion of Item 13, wherein:

[0043] The plurality of connection portions include a first connection portion and a second connection portion;

[0044] Each of the first connection portion and the second connection portion is curved and includes at least two inflection points such that the first connection portion and the second connection portion each form a bell curve shape; and

[0045] The bell-curve shape of the first connecting portion is taller and / or narrower than the bell-curve shape of the second connecting portion.

[0046] Item 18. A seat assembly comprising:

[0047] The support portion according to claim 1; and

[0048] the seat back frame;

[0049] Wherein, the plurality of first extensions and the plurality of second extensions are connected to the seat back frame.

[0050] Item 19. The seat assembly of Item 18, wherein the seat back frame does not include a wire suspension pad.

[0051] Item 20. The seat assembly of Item 18, wherein:

[0052] The seat back frame includes two side members and at least one cross member connecting the two side members; and

[0053] The first main portion and the second main portion extend substantially parallel to the two side members of the seat back frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Although the claims are not limited to specific illustrations, an understanding of various aspects may be gained through a discussion of various examples. The drawings are not necessarily to scale, and certain features may be exaggerated or hidden to better illustrate and explain the innovative aspects of the examples. In addition, the exemplary illustrations described herein are not exhaustive or otherwise limiting, and the embodiments are not limited to the precise forms and configurations shown in the drawings or disclosed in the following detailed description. The exemplary illustrations are described in detail with reference to the drawings as follows:

[0055] Figure 1 is a perspective view generally illustrating an embodiment of a seat assembly in accordance with the teachings of the present disclosure.

[0056] Figure 2 is a rear view generally illustrating an embodiment of a support portion relative to a user in accordance with the teachings of the present disclosure.

[0057] Figures 3 to 6 is a front view generally illustrating an embodiment of a support portion in accordance with the teachings of the present disclosure.

[0058] Figure 7 is a front view generally illustrating an embodiment of a seat assembly in accordance with the teachings of the present disclosure.

[0059] Figure 8 is a side view generally illustrating an embodiment of a seat assembly in accordance with the teachings of the present disclosure. Detailed Description

[0060] Reference will now be made in detail to embodiments of the present disclosure, examples of which are described herein and illustrated in the accompanying drawings. Although the present disclosure will be described in conjunction with the embodiments and / or examples, these embodiments and / or examples do not limit the present disclosure to these embodiments and / or examples. On the contrary, the present disclosure encompasses alternatives, modifications and equivalents.

[0061] In some embodiments, for example Figure 1 , Figure 7 and Figure 8 As generally shown in FIG. 1 , the seat assembly 100 is configured as a modular seat assembly that includes a plurality of components that, when assembled, form a vehicle seat, such as for a passenger vehicle 200 (e.g., a car, van, SUV, truck, bus, train, ship, boat, airplane). The seat assembly 100 may be used in any other suitable situation or installation, such as a home, office building, theater, stadium, recreational vehicle, commercial vehicle, and / or agricultural equipment, among others, and is not limited to vehicle applications.

[0062] In some embodiments, for example Figure 7 and Figure 8 1 , the seat assembly 100 includes a seat frame 102, a seat base 104, a seat bottom 106, a seat back 108, one or more air bag assemblies 198, and / or a support portion 120. The seat frame 102 is connected to the seat base 104, which can be removably and / or slidably connected to the track assembly 146. The seat bottom 106 and / or the seat back 108 are connected to and / or supported by the seat frame 102. The seat frame 102, the seat bottom 106, and / or the seat back 108 can be configured to move relative to each other (e.g., adjust, tilt, rotate, fold, collapse) and / or move along the track assembly 146 via actuation of the seat adjuster 148. In an embodiment, the seat bottom 106 and / or the seat back 108 may include one or more other elements, components and / or assemblies, such as pads or cushions 106A, 108A, cushion / cushion assemblies and / or trim assemblies. Additionally and / or alternatively, the seat back 108 may be connected to one or more other parts of the seat assembly 100 and / or one or more other parts of the vehicle 200.

[0063] In some embodiments, the seat frame 102 includes a seat bottom frame 110 (see, e.g., Figure 7 and Figure 8 ) and the seat back frame 112 (see e.g. Figure 1 , Figure 7 and Figure 8 ). A seat bottom frame 110 is disposed in and / or connected to the seat bottom 106. A seat back frame 112 is disposed in and / or connected to the seat back 108. The seat bottom frame 110 and the seat back frame 112 are connected to each other via connectors such as brackets, fasteners, and / or hinges. Alternatively, the seat frame 102, the seat bottom frame 110, and / or the seat back frame 112 may be formed together as a single integral component so that the seat frame 102 is a one-piece structure.

[0064] According to some embodiments, for example, Figure 1 and Figure 7 As generally depicted in FIG. 1 , the seat back frame 112 includes a plurality of cross members (e.g., a first cross member 114 and a second cross member 114') and a plurality of side members (e.g., a first side member 116 and a second side member 116'). The cross members 114, 114' and / or the side members 116, 116' may include one or more of a variety of configurations, such as, for example, members, beams, bars, rods, tubes, and / or extensions of the seat back frame 112. The cross members 114, 114' may generally extend in the Y direction (e.g., if / when the seat back is in a vertical, forward-facing position). The side members 116, 116' may generally extend in the Z direction (e.g., generally perpendicular or inclined relative to the XY plane), such as if / when the seat back is in a vertical, forward-facing position. The first and second cross members 114, 114' extend between and connect the opposite ends of the first and second side members 116, 116' to define an opening 118. The opening 118 facilitates at least partial deformation of the seat back that may occur when forces are applied to the seat back (e.g., when the user 300 sits on the seat assembly 100 and / or leans on the seat back 108). Although in Figure 1 and Figure 7 The seat back frame 112 has a generally rectangular shape in the depicted embodiment, but the seat back frame 112 may have other suitable or desired shapes.

[0065] In some embodiments, for example Figure 1 , Figure 7 and Figure 8As generally depicted in , the seat assembly 100 includes a support portion 120 configured to support a user 300. The support portion 120 is flexible and deformable to compensate for applied forces (e.g., the weight of the user 300 sitting on the seat assembly 100 and / or leaning on the seat back 108). The support portion 120 is configured to limit (e.g., reduce) pressure on the spine 302 and / or one or more bones and / or bony protrusions 306, 306', 308, 308', 310, 310' of the user 300 sitting on the seat assembly 100. The support portion 120 can be a substitute and / or replacement for a conventional wire suspension mat, which typically includes a plurality of metal wires. Therefore, in some embodiments, the seat assembly 100 does not include a wire suspension mat (see, e.g., Figure 1 , Figure 7 and Figure 8 ).

[0066] In some embodiments, Figure 1 and Figure 3-Figure 7 As generally shown in FIG. 1 , the support portion 120 is formed as a one-piece component. However, in other embodiments, the support portion 120 may include a plurality of separate separate portions connected to each other and / or to the seat back frame 112 (see, for example, FIG. 1 ). Figure 2 The support portion 120 and / or its material may be porous and / or include a lattice structure or microstructure 122, which may include an array of X-shaped openings 124 (see, e.g. Figure 2 ). Additionally and / or alternatively, the lattice structure 122 can have openings 124 of any other desired shape. The shape of the lattice structure 122 and / or the openings 124 can facilitate deformation (e.g., flexure, stretching) of the support portion 120, and can be configured in a variety of different ways to provide desired properties and / or characteristics to the support portion 120. The support portion 120 includes and / or consists of a composite plastic material. In other embodiments, the support portion 120 may include other desired materials (e.g., metal, plastic, rubber, foam) and / or may be composed of other desired materials (e.g., metal, plastic, rubber, foam) and / or may not have a lattice structure 122. In some embodiments, parts, regions and / or zones of the support portion 120 (e.g., main portion 130, 130', extensions 170, 170', lateral portion 140, connecting portion 150, mounting structure 190, reinforcement zone 192) may have different lattice structures 122 and / or may be composed of different materials / structures to provide different properties and / or characteristics to parts, regions and / or zones of the support portion 120.

[0067] In some embodiments, Figure 1 , Figure 7and Figure 8 1 , the support portion 120 is disposed on and connected to the seat frame 102 (e.g., a rear surface 112A of the seat back frame 112 facing away from the user 300). The support portion 120 extends partially or completely through the opening 118 of the seat back frame 112. The support portion 120 is disposed in the seat back 108 and can be connected to and / or support one or more elements and / or components of the seat assembly 100 (e.g., the seat back cushion 108A, the distribution / ventilation cushion). Additionally and / or alternatively, the support portion 120 can be disposed within the opening 118 and / or connected to the front surface of the seat back frame 112 facing the user 300. In some embodiments, the support portion 120 can be disposed on and / or at least partially embedded in one or more elements and / or components of the seat assembly 100 (e.g., the seat back cushion 108A, the distribution / ventilation cushion).

[0068] In some embodiments, for example Figure 1-Figure 6 As generally depicted in FIG, support portion 120 includes a first main portion 130 and a second main portion 130'. Main portions 130, 130' are longitudinal members having a generally rectangular cross-section in the XY plane if / when the seat back is in a vertical, forward-facing position. Main portions 130, 130' extend generally in the Z direction (e.g., generally perpendicular or obliquely relative to the XY plane) if / when the seat back is in a vertical, forward-facing position. Although Figure 1-Figure 6 The support portion 120 in FIG. 1 includes two main portions 130 , 130 ′, but the support portion 120 may include other numbers of main portions 130 and 130 ′, and the main portion 130 or 130 ′ may have other appropriate or desired shapes.

[0069] In some embodiments, for example Figure 1 As generally depicted in FIG. 1 , the main portion 130, 130' is connected to the seat back frame 112. In some embodiments (e.g. Figure 1 and Figure 3-Figure 6 In some embodiments (such as those generally depicted in FIG. 1 ), the first end 130A of the first main portion 130 and the first end 130A′ of the second main portion 130′ are connected to the first cross member 114 of the seat back frame 112 via respective connectors / fasteners 194. In some embodiments, for example Figure 1 and Figure 3-Figure 6, the main portions 130, 130' may not be connected and / or may not be configured to be directly connected to the second cross member 114'. In other embodiments, the second end 130B of the first main portion 130 and the second end 130B' of the second main portion 130' may be connected to the second cross member 114' of the seat back frame 112 via corresponding connectors 194. In some embodiments (e.g. Figure 2 In some embodiments, the main portions 130, 130' may not be directly connected and / or may not be configured to be directly connected to the seat back frame 112 (e.g., may not be directly connected to the first cross member 114, nor directly connected to the second cross member 114'), and may only be indirectly connected to the seat back frame 112 (e.g., via one or more extensions 170, 170'). In some embodiments, one or more main portions 130, 130' may be connected to another portion of the seat back frame 112 (e.g., the first or second side members 116, 116') and / or another portion of the seat assembly 100 (e.g., the seat back cushion 108A, the blower, the duct, the cable, etc.).

[0070] In some embodiments, for example Figure 1-Figure 6 , the first main portion 130 and the second main portion 130' are disposed adjacent to each other and spaced apart from each other to define a first gap 132 therebetween. In some embodiments, the first main portion 130 and the second main portion 130' extend generally obliquely relative to each other such that the width of the first gap 132 (e.g., extending generally in the Y direction if / when the seat back is in a vertical, forward-facing position) varies (see, e.g., Figure 3 and Figure 6 In other embodiments, the first main portion 130 and the second main portion 130' extend substantially parallel to each other at least in some regions, so that the width of the first gap 132 is constant (see, for example, Figure 1 , Figure 2 , Figure 4 and Figure 5 In some embodiments, at least a portion of the first main portion 130 and / or the second main portion 130' extends substantially parallel to the first and / or second lateral members 116, 116' and is spaced apart from the first and second lateral members 116, 116' (see, e.g. Figure 1In some embodiments, at least in some regions, first main portion 130 and second main portion 130' are disposed closer to each other than first and / or second lateral members 116, 116' (e.g., a width of first gap 132 is less than a distance between first main portion 130 and first lateral member 116 and a distance between second main portion 130' and second lateral member 116').

[0071] In an embodiment, for example, Figure 1-Figure 6 , the first main portion 130 and the second main portion 130' are configured to limit pressure on the spine 302 (and / or one or more bony prominences thereof) of a user 300 seated on the seat assembly 100. The main portions 130, 130' are configured to extend along opposite sides of the user's spine 302 (e.g., generally in the Z direction if / when the seat back is in a vertical, forward-facing position) such that the first gap 132 is aligned with the spine 302 of the user 300 seated on the seat assembly 100 (see, e.g., Figure 2 ). Thus, the main portions 130, 130' are configured to minimize overlap with the user's spine 302 and / or limit or eliminate the amount of pressure applied directly to the user's spine 302 by the support portion 120. One or more elements and / or components of the seat assembly 100 (e.g., the seat back cushion 108A, the distribution / ventilation cushion) disposed above the first gap 132 are able to deform to a greater extent than in an area aligned with the main portions 130, 130', which in turn can limit and / or reduce the amount of pressure applied to the user's spine 302. Additionally and / or alternatively, the first main portion 130 and the second main portion 130' can be configured to provide targeted support to the user's spine 302 to provide a more uniform distribution of pressure in an area of ​​the spine 302 (and / or one or more bony prominences thereof), thereby limiting and / or reducing the amount of pressure applied to the user's spine 302.

[0072] In some embodiments, for example Figure 1-Figure 6As generally depicted in FIG. 1 , the first main portion 130 and the second main portion 130' are flexible and are configured to elastically deform (e.g., flex, stretch) when a force is applied to the support portion 120 (e.g., under the weight of a user 300 sitting on the seat assembly 100 and / or leaning on the seat back 108). In some embodiments, the main portions 130, 130' are configured to flex (e.g., in the X direction and / or in the Y direction if / when the seat back is in a vertical, forward-facing position) when the user 300 sits on the seat assembly 100 and / or leans on the seat back 108 to cushion and support the user 300. In some examples, the first main portion 130 and the second main portion 130' are configured to flex away from each other, which can increase the width of the first gap 132 (at least in some areas) and further limit the amount of pressure applied to the user's spine 302. Additionally and / or alternatively, when the user 300 sits on the seat assembly 100 and / or leans on the seat back 108, the first main portion 130 and the second main portion 130' can stretch, which can promote more localized deformation of the support portion 120. This in turn can promote the support portion 120 to conform to the shape of the user 300, support the user 300, and / or reduce pressure applied to the user's spine or other bony prominences, which can increase the user's comfort. For example, if / when the seat back is in a vertical, forward-facing position, the first main portion 130 and the second main portion 130' can stretch generally in the Y direction, which can increase the width of the first and / or second main portions 130, 130', and / or can stretch generally in the Z direction, which can increase the length of the first and / or second main portions 130, 130'. In some embodiments, the first main portion 130 and the second main portion 130' are more resistant to deformation and / or deform less (e.g., less flexible, less stretchable) than one or more extensions 170, 170' and / or one or more connecting portions 150. Additionally and / or alternatively, the first main portion 130 and the second main portion 130' can be less resistant to deformation and / or deform more (e.g., more flexible, more stretchable) than the lateral portion 140.

[0073] In some embodiments, for example, Figure 1 , Figure 3 , Figure 4 and Figure 6As generally depicted in , the support portion 120 includes a transverse portion 140. The transverse portion 140 is configured to limit and / or constrain flexure of the main portions 130, 130' (e.g., flexure under the weight of the user 300), at least to some extent. The transverse portion 140 is connected to the first main portion 130 and the second main portion 130' and extends through the first gap 132 (e.g., generally in the Y direction if / when the seat back is in a vertical, forward-facing position). In some embodiments, the transverse portion 140 is connected at or around the second ends 130B, 130B' of the main portions 130, 130', and / or is disposed in the lumbar region 304 of the user 300. In some embodiments, the transverse portion 140 is more resistant to deformation and / or is less deformed (e.g., less flexible, less stretchable) than one or more main portions 130, 130', one or more extensions 170, 170', and / or one or more connecting portions 150. Although Figure 1 , Figure 3 , Figure 4 and Figure 6 The embodiment generally depicted in FIG. 1 includes a single transverse portion 140, but the support portion 120 may include other numbers of transverse portions 140 or may not include a transverse portion 140 (see, e.g. Figure 2 and Figure 5 ).

[0074] In some embodiments, for example, Figure 1 and Figure 3-Figure 6 , the support portion 120 includes one or more connecting portions / structures 150. The connecting portions 150 are configured to facilitate flexion of the first main portion 130 and the second main portion 130' (e.g., away from each other) and / or provide support to the user's spine 302. In some cases (e.g., when fully extended and / or stretched), the connecting portions 150 may also limit and / or constrain flexion of the first main portion 130 and the second main portion 130' to at least some extent. The connecting portions 150 are connected to the first main portion 130 and the second main portion 130' and extend through the first gap 132 (e.g., generally in the Y direction). In some embodiments, the connecting portions 150 are spaced apart from each other along the first main portion 130 and the second main portion 130' (e.g., generally in the Z direction if / when the seat back is in a vertical, forward-facing position) at least in multiple zones. In some embodiments, the connecting portion 150 is less resistant to deformation and / or more deformable (e.g., more flexible, more stretchable) than one or more main portions 130, 130', one or more extensions 170, 170', and / or lateral portion 140. In some embodiments, the support portion 120 may include a single type of connector portion 150 (see, e.g., Figure 1 and Figure 3-Figure 5 ) and / or may include a plurality of different types of connecting portions 150 (see, e.g. Figure 6 ).Although Figure 1 and Figure 3-Figure 6 The embodiment generally depicted in FIG. 1 includes several connecting portions 150, but the support portion 120 may include other numbers of connecting portions 150 (e.g., a single connecting portion) or may not include a connecting portion 150 (see, e.g., Figure 2 ).

[0075] In some embodiments, for example, Figure 1 and Figure 3-Figure 6 As generally depicted in FIG. 1 , the connecting portion 150 is generally V-shaped (which includes a U-shaped configuration). In some embodiments, for example, Figure 3 and Figure 6 As generally depicted in FIG. 1 , one or more connecting portions 150 (e.g., a first type of connecting portion 152) may have a first substantially linear portion 152A, a second substantially linear portion 152B, and a joining portion 152C connecting the first and second substantially linear portions 152A, 152B, such that, for example, the connecting portion 152 forms an inverted V shape or a chevron shape. In some embodiments, for example, Figure 1 , Figure 4-Figure 6 As generally depicted in FIG. 1 , one or more connecting portions 150 (e.g., Figure 1 , Figure 4 and Figure 6 The second type of connection portion 154 and / or Figure 5 and Figure 6The third type of connecting portion 156 in the embodiment of the present invention can be curved and / or include one or more inflection points 158A, 158B. One or more connecting portions 150 (e.g., the second and third types of connecting portions 154, 156) can have two inflection points 158A, 158B, so that the connecting portions 154, 156 form a bell curve shape. The shape of the connecting portion 150 may affect its properties, characteristics and / or performance. For example, the V-shape of the connecting portion 150 (e.g., the first, second and third types of connecting portions 152, 154, 156) can promote deformation of the connecting portion 150 and / or flexure of the main portion 130. A connecting portion 150 (e.g., the first type of connecting portion 152) including one or more linear portions 152A, 152B and / or one or more sharp corners (e.g., the joining portion 152C) can be more rigid and / or more resistant to deformation than a curved connecting portion 150 (e.g., the second and third types of connecting portions 154, 156). A connecting portion 150 having a lower peak (e.g., flatter) (e.g., the second type of connecting portion 154) may be more rigid and / or more resistant to deformation than a connecting portion 150 having a higher peak (e.g., taller and / or narrower) (e.g., the third type of connecting portion 156).

[0076] In some embodiments, for example, Figure 1-Figure 6 As generally depicted in , the support portion 120 includes a plurality of first extensions 170 and a plurality of second extensions 170'. The first extensions 170 and the second extensions 170' are substantially mirror images of each other relative to the first gap 132. Therefore, embodiments of the first extensions 170 and the second extensions 170' are described together below. The first extensions 170 and the second extensions 170' are not limited to mirror image configurations, and the first extensions 170 and the second extensions 170' may be configured the same as or differently from each other. The support portion 120 may also have other numbers of first extensions 170 and other numbers of second extensions 170'. Although in Figure 1-Figure 6 In the embodiment of FIG. 1 , the support portion 120 includes the same number of first and second extensions 170 , 170 ′, but the support portion 120 may alternatively include a different number of first extensions 170 than second extensions 170 ′.

[0077] In some embodiments, for example, Figure 1-Figure 6, if / when the seat back is in a vertical, forward-facing position, the extensions 170, 170' are longitudinal members having a generally rectangular cross-section in the XZ plane. One or more of the extensions 170, 170' may extend generally in the Y direction (e.g., generally perpendicular or inclined relative to the XZ plane). The extensions 170, 170' are (e.g., integrally) connected to and protrude from the associated main portions 130, 130'. If / when the seat back is in a vertical, forward-facing position, the extensions 170, 170' are generally spaced apart from each other along the associated main portions 130, 130' in the Z direction. In some embodiments, one or more extensions 170, 170' may be arranged to align with the lumbar region 304 of the user 300 to increase user comfort and / or limit (e.g., reduce) back pain for the user 300. In some embodiments, one or more of the extensions 170, 170' may be generally relative to each other (see, e.g. Figure 1-Figure 6 In the embodiment of the present invention, the extensions 1701, 1702, 1703, 1704, 1701', 1702' and 1703', 1704') and / or the main portion 130, 130' extend obliquely. Additionally and / or alternatively, one or more of the extensions 170, 170' may extend substantially parallel to each other (see, for example, Figure 2 1702, 1705 and extensions 1702', 1705' in the figure). The end of each of the extensions 170, 170' opposite the corresponding main portion 130, 130' (e.g., free end 170A, 170A') is connected to the side members 116, 116' via a corresponding connector 194. Additionally and / or alternatively, one or more extensions 170, 170' can be connected to another portion of the seat back frame 112 (e.g., the first and / or second cross members 114, 114') and / or another portion of the seat assembly 100 (e.g., the seat back cushion 108A).

[0078] In some embodiments, the extensions 170, 170' are configured to limit / reduce pressure on one or more bony protrusions (e.g., first scapular bony protrusions 306, 306', second scapular bony protrusions 308, 308', pelvic bony protrusions 310, 310') of a user 300 sitting on the seat assembly 100. One or more of the extensions 170, 170' can be configured to deviate from (e.g., misalign) one or more bony protrusions 306, 306', 308, 308', 310, 310' of the user 300 so that the bony protrusions 306, 306', 308, 308', 310, 310' are configured to align with one or more gaps 174, 174', 178, 178', 182, 182' between adjacent extensions 170, 170', which can enable one or more elements and / or components of the seat assembly 100 (e.g., the seat back pad 108A, the distribution / ventilation pad) to deform to a greater extent than in an area aligned with the extensions 170, 170'. This in turn can limit and / or reduce the amount of pressure applied to the bony protrusions 306, 306', 308, 308', 310, 310' by the support portion 120 and / or other portions of the seat assembly 100. One or more of the extensions 170, 170' can be configured to minimize overlap with one or more bony protrusions 306, 306', 308, 308', 310, 310' of the user 300 and limit the amount of pressure applied directly to the one or more bony protrusions 306, 306', 308, 308', 310, 310' of the user 300 by the support portion 120. Additionally and / or alternatively, one or more of the extensions 170, 170' can be configured to provide targeted support to one or more areas surrounding and / or including one or more bony protrusions 306, 306', 308, 308', 310, 310', which can provide a more uniform pressure distribution in the area of ​​the bony protrusions 306, 306', 308, 308', 310, 310', thereby limiting and / or reducing the maximum / peak pressure applied to the bony protrusions 306, 306', 308, 308', 310, 310'.

[0079] In some embodiments, for example, Figure 1-Figure 6100 and / or the seat back 108 to cushion and support the user 300. As generally depicted in FIG. 100 , the extensions 170, 170' are flexible and are configured to elastically deform (e.g., flex, stretch) when a force is applied to the support portion 120 (e.g., under the weight of a user 300 sitting on the seat assembly 100 and / or leaning on the seat back 108). One or more extensions 170, 170' are configured to flex (e.g., in the X direction and / or in the Y direction if / when the seat back is in a vertical, forward-facing position) when the user 300 sits on the seat assembly 100 and / or leans on the seat back 108 to cushion and support the user 300. In some examples, one or more extensions 170, 170' are configured to flex away from and / or toward one or more other extensions 170, 170' to cushion and support the user 300 (e.g., extensions 1702, 1702' can flex away from extensions 1701, 1701' and toward extensions 1705, 1705'). In some examples, when one or more extensions 170, 170' flex, the width of one or more gaps 174, 174', 178, 178', 182, 182' between adjacent extensions 170, 170' can increase, at least in some areas, which can further limit the amount of pressure applied to one or more bony protrusions 306, 306', 308, 308', 310, 310'. Additionally and / or alternatively, when the user 300 sits on the seat assembly 100, one or more extensions 170, 170' can stretch, which can promote more localized deformation of the support portion 120. This in turn can promote the support portion 120 to conform to the shape of the user 300 and / or support the user 300, which can increase the comfort of the user 300. For example, if / when the seat back is in a vertical, forward-facing position, one or more extensions 170, 170' can stretch generally in the Y direction, which can increase the length of the extension 170, 170', and / or can stretch generally in the Z direction, which can increase the width of the extension 170, 170', which can allow additional movement of the main portion 130, 130' and / or reduce pressure on the user's spine. In some embodiments, one or more of the extensions 170, 170' is less resistant to deformation and / or deforms more (e.g., is more flexible, is more stretchable) than one or more of the main portions 130, 130' and / or the transverse portions 140. Additionally and / or alternatively, one or more of the extensions 170, 170' is more resistant to deformation and / or deforms less (e.g., is less flexible, is less stretchable) than one or more of the connecting portions 150. One or more of the extensions 170, 170' may be about the same in terms of resistance to deformation and in terms of deformability as one or more of the connecting portions 150.

[0080] In some embodiments, for example, Figure 1 and Figure 3-Figure 6 As generally depicted in FIG. 1 , the width 150W of the connecting portion 150 (e.g., perpendicular to the length and / or longitudinal extent of the connecting portion 150) is less than the width 130W of the main portion 130, 130' (e.g., perpendicular to the length and / or longitudinal extent of the main portion 130, 130'; generally in the Y direction), the width 170W of the extension 170, 170' (e.g., perpendicular to the length and / or longitudinal extent of the extension 170, 170'; generally in the Y direction), and the width 170W of the extension 170, 170' (e.g., perpendicular to the length and / or longitudinal extent of the extension 170, 170'; generally in the Y direction). The width 140W of the lateral portion 140 may be greater than the widths 130W, 170W, 150W of the main portion 130, 130', the extensions 170, 170', and / or the connecting portion 150, which may result in the lateral portion 140 being less resistant to deformation and / or being more deformable (e.g., being more flexible, more stretchable) than the main portion 130, 130', the extensions 170, 170', and / or the connecting portion 150. The width 140W of the lateral portion 140 may be greater than the widths 130W, 170W, 150W of the main portion 130, 130', the extensions 170, 170', and / or the connecting portion 150, which may result in the lateral portion 140 being more resistant to deformation and / or being less deformable (e.g., being less flexible, less stretchable) than the main portion 130, 130', the extensions 170, 170', and the connecting portion 150. In some embodiments, the width of the extension 170, 170' is less than the width of the main portion 130, 130', which can cause the extension 170, 170' to be less resistant to deformation and / or more deformable (e.g., more flexible, more stretchable) than the main portion 130, 130'. In some examples, the width 130W, 140W, 170W of the main portion 130, 130', the lateral portion 140, and the extension 170 can be at least two or three times as wide as the width 150W of the connecting portion 150, but can have other widths.

[0081] In some examples, the support portion 120 in a stress-free position (e.g., when a user is not seated and / or before connection with the seat back frame 112) is substantially planar and / or parallel to the YZ plane when in a vertical configuration. The widths 130W, 140W, 170W can be significantly greater than the thickness of the support portion 120.

[0082] In some embodiments, for example, Figure 8As generally depicted in FIG. 1 , the main portion 130, 130', the transverse portion 140, the connecting portion 150, and the extensions 170, 170' each have substantially the same thickness (e.g., in the X direction if / when the seat back is in a vertical, forward-facing position). In other embodiments, the thicknesses of the main portion 130, 130', the transverse portion 140, the connecting portion 150, and the extensions 170, 170' may not be equal, for example, to adjust the respective deformation resistance of the connecting portion 150, the main portion 130, 130', the extensions 170, 170', and / or the transverse portion 140 relative to each other.

[0083] In some embodiments, for example, Figure 1-Figure 6 As generally depicted in FIG. 1 , the extensions 170, 170' include one or more pairs of extensions (e.g., a first pair of first extensions 172, a second pair of first extensions 176, a third pair of first extensions 180, a first pair of second extensions 172', a second pair of second extensions 176', a third pair of second extensions 180'). A pair of extensions 172, 172', 176, 176', 180, 180' includes two extensions 170, 170' (see, e.g., Figure 2 The extensions 1701, 1702, 1703, 1704, 1705 and extensions 1701', 1702', 1703', 1704', 1705' in the seat back are arranged to be generally adjacent to each other and spaced apart from each other in the Z direction when the seat back is in a vertical, forward-facing position. The extensions 170, 170' of the pair of extensions 172, 172', 176, 176', 180, 180' may extend generally obliquely relative to each other (see, for example, Figure 1-Figure 6 The extensions 1701, 1702, 1703, 1704, 1701', 1702', 1703', 1704') and / or may extend parallel to each other (see, e.g. Figure 2In some embodiments, the support portion 120 includes a first pair of extensions 172, 172' configured to limit pressure on a first scapula bone protrusion 306, 306' of the user 300. The extensions 1701, 1702, 1701', 1702' of the first pair of extensions 172, 172' are disposed offset from (e.g., not aligned with) the first scapula bone protrusion 306, 306' of the user 300, such that, for example, a second gap 174, 174' between the first pair of extensions 172, 172' is disposed to align with the first scapula bone protrusion 306, 306'. In some embodiments, the support portion 120 includes a second pair of extensions 176, 176' configured to limit pressure on the pelvic bony protrusions 310, 310' of the user 300. The extensions 1703, 1704, 1703', 1704' of the second pair of extensions 176, 176' are disposed offset from (e.g., misaligned with) the pelvic bony protrusions 310, 310' of the user 300, such that, for example, a third gap 178, 178' between the second pair of extensions 176, 176' is disposed to align with the pelvic bony protrusions 310, 310'. In some embodiments, the support portion 120 includes a third pair of extensions 180, 180' configured to limit pressure on the second scapula bony protrusions 308, 308' of the user 300. The extensions 1702, 1705, 1702', 1705' of the third pair of extensions 180, 180' are configured to be offset from (e.g., misaligned with) the second scapula bone protrusions 308, 308' of the user 300, such that, for example, the fourth gaps 182, 182' between the third pair of extensions 180, 180' are configured to be aligned with the second scapula bone protrusions 308, 308'.

[0084] In some embodiments, for example, Figure 1, the support portion 120 is directly connected to the seat back frame 112 via a plurality of connectors 194. However, direct connection of the support portion 120 to the seat back frame 112 is not required, and the support portion 120 may additionally and / or alternatively be indirectly connected to the seat back frame 112. The support portion 120 and / or one or more portions thereof may be connected (e.g., directly) to the seat back cushion 108A, the seat bottom frame 110, the seat bottom 106, and / or another portion of the seat assembly 100 (in addition to and / or in lieu of the seat back frame 112). In some embodiments, the connectors 194 are configured as Christmas tree connectors. Additionally and / or alternatively, one or more of the connectors 194 (e.g., all of the connectors 194) may be configured as rivets, hooks, fasteners, clips, adhesives, screws, bolts, and / or other similar structures.

[0085] In some embodiments, for example, Figure 1 1, the support portion 120 and / or one or more portions thereof (e.g., the main portion 130, 130', the extension 170, 170') include one or more mounting structures 190 that are configured to facilitate connection of the support portion 120 to one or more other elements and / or components (e.g., the seat back frame 112, the air bag assembly 198, the seat back cushion 108A, the blower / fan, the duct, etc.). In some embodiments, the mounting structure 190 can be configured (e.g., via increased thickness and / or material properties) as a reinforced region 192 that is stronger and / or has improved resistance to deformation. One or more elements and / or components (e.g., of the seat assembly 100) can be connected to the reinforced region 192 of the support portion 120, which can provide a stronger and / or more stable connection between the element / component and the support portion 120. In other examples, the mounting structure 190 can be configured as a socket, protrusion, and / or other structure that engages one or more elements and / or components (e.g., blower / fan, duct, etc.) of the seat assembly 100. In some examples, such as in Figure 1, the first main portion 130, the second main portion 130', and the extensions 170, 170' include one or more mounting structures 190 and / or one or more reinforcement areas 192. A connector 194 engages the reinforcement areas 192 of the main portions 130, 130' and the extensions 170, 170' to provide an enhanced and / or stronger connection of the support portion 120 to the seat back frame 112. In some examples, an airbag assembly 198 (e.g., a lumbar airbag assembly) is connected to the reinforcement areas 192 of the main portions 130, 130' and several of the extensions 170, 170' via fasteners 196 (e.g., clips, cable ties, adhesives, rivets, screws, nuts, and bolts) and / or other similar structures (e.g., directly).

[0086] In some embodiments, the seat bottom frame 110 can be configured and / or constructed similarly to the seat back frame 112. The seat assembly 100 can include another support portion (e.g., a seat bottom support portion) that can be configured and / or constructed similarly to the support portion 120. The seat bottom support portion can be connected to the seat bottom frame 110 and can function similarly to the support portion 120.

[0087] Various examples / embodiments for various devices, systems, and / or methods are described herein. Many specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture, and use of the examples / embodiments described in the specification and illustrated in the accompanying drawings. However, it will be appreciated by those skilled in the art that the examples / embodiments can be practiced without such specific details. In other examples, well-known operations, parts, and elements are not described in detail so as not to obscure the examples / embodiments described in this specification. It will be appreciated by those of ordinary skill in the art that the examples / embodiments described and illustrated herein are non-limiting examples, and therefore it will be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the scope of the embodiments.

[0088] References to "example", "in an example", "according to an example", "various embodiments", "according to an embodiment", "in an embodiment", or "an embodiment" and the like throughout the specification mean that a particular feature, structure, or characteristic described in conjunction with the example / embodiment is included in at least one embodiment. Therefore, the appearance of the phrases "example", "in an example", "according to an example", "in various embodiments", "according to an embodiment", "in an embodiment", or "an embodiment" and the like in multiple places throughout the specification do not necessarily refer to the same embodiment. In addition, particular features, structures, or characteristics may be combined in any suitable manner in one or more examples / embodiments. Therefore, the particular features, structures, or characteristics shown or described in conjunction with one embodiment / example may be combined in whole or in part with the features, structures, functions, and / or characteristics of one or more other embodiments / examples without restriction, as long as such a combination is not illogical or inoperative. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the scope of the present disclosure.

[0089] It should be understood that references to individual elements are not necessarily so limited, but may include one or more such elements. Any directional references (e.g., positive, negative, upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above, below, vertical, horizontal, clockwise, and counterclockwise) are used only for identification purposes to help the reader understand the present disclosure and do not create limitations, particularly with respect to the position, orientation, or use of the examples / embodiments.

[0090] Reference to engagement (e.g., attachment, connection, connection, etc.) should be interpreted broadly, and may include intermediate members between the connection of elements, relative movement between elements, direct connection, indirect connection, fixed connection, removable connection, operational connection, indirect contact and / or direct contact. Therefore, reference to engagement does not necessarily mean that two elements are directly connected / connected and are in a fixed relationship with each other. The connection of electrical components (if any) may include mechanical connection, electrical connection, wired connection and / or wireless connection, etc. The use of "for example" and "such as" in this specification should be interpreted broadly and used to provide non-limiting examples of embodiments of the present disclosure, and the present disclosure is not limited to such examples. The use of "and" and "or" should be interpreted broadly (e.g., regarded as "and / or"). For example and without limitation, the use of "and" does not necessarily require all listed elements or features, and the use of "or" is inclusive, unless such a construction is originally illogical.

[0091] Although processes, systems, and methods may be described herein in conjunction with one or more steps in a particular sequence, it should be understood that such methods may be practiced with steps in a different order, by performing certain steps simultaneously, with additional steps, and / or by omitting certain described steps.

[0092] It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes may be made in detail or structure without departing from the disclosure.

Claims

1. A support portion for a seat assembly, comprising: The first major part; a second main portion, the second main portion being arranged such that a gap is provided between the first main portion and the second main portion; a plurality of first extensions, the plurality of first extensions protruding from the first main portion away from the gap; as well as a plurality of second extensions, the plurality of second extensions protruding from the second main portion away from the gap; wherein the first main portion and the second main portion are configured to extend along opposite sides of a spine of a user such that the gap is aligned with the spine; The plurality of first extensions and the plurality of second extensions are configured to be coupled to a seat back frame; an end of the first main portion and an end of the second main portion each configured to be connected to a cross member of the seat back frame; The plurality of first extensions each have a free end portion configured to be connected to a first side member of the seat back frame; and The plurality of second extensions each have a free end configured to be connected to a second lateral member of the seat back frame.

2. A seat assembly comprising: A supporting part, the supporting part comprising: The first major part; a second main portion, the second main portion being arranged such that a gap is provided between the first main portion and the second main portion; a plurality of first extensions protruding from the first main portion away from the gap; and a plurality of second extensions, the plurality of second extensions protruding from the second main portion away from the gap; a seat back frame, said seat back frame not including a wire suspension pad; wherein the first main portion and the second main portion are configured to extend along opposite sides of a spine of a user such that the gap is aligned with the spine; and The plurality of first extensions and the plurality of second extensions are connected to the seat back frame.

3. The support portion according to claim 1, wherein: The first main portion and the second main portion are configured as longitudinal members configured to flex away from each other under the weight of the user to increase the width of the gap and cushion the user.

4. The support portion according to claim 1, wherein: The first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions include a material having a lattice and / or a porous structure.

5. The support portion according to claim 1, wherein: The plurality of first extensions and the plurality of second extensions are configured to limit pressure on bony prominences of the user.

6. The support portion according to claim 1, wherein: At least some of the plurality of first extensions and at least some of the plurality of second extensions are configured to support a lumbar region of the user.

7. The support portion according to claim 1, wherein: The plurality of first extensions include a pair of first extensions; The pair of first extensions are arranged adjacent to each other; providing a second gap between the pair of first extensions; as well as The pair of first extensions are configured to be connected to the seat back frame such that the second gap is aligned with a shoulder blade protrusion of the user to limit pressure on the shoulder blade protrusion.

8. The support portion according to claim 1, wherein: At least one of the first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions includes a reinforcement area configured to connect to one or more of an air bag, a fan, a duct, the seat back frame, a cushion, and / or a cable.

9. The support portion of claim 1, comprising one or more air bladders directly connected to at least one of the first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions.

10. The support portion of claim 1, comprising a transverse portion extending between and connecting the first main portion and the second main portion, wherein: The lateral portion is configured to at least to some extent restrain deflection of the first main portion and the second main portion under the weight of the user.

11. The support portion according to claim 10, wherein: The lateral portion is disposed at or around ends of the first and second main portions, the first and second main portions being configured to be disposed in a waist region of the user.

12. The support portion according to claim 11, comprising a plurality of generally V-shaped connecting portions extending between and connecting the first main portion and the second main portion, wherein: The plurality of connecting portions are more flexible than the lateral portions.

13. The support portion of claim 1, comprising a plurality of generally V-shaped connecting portions extending between and connecting the first main portion and the second main portion, wherein: The plurality of connecting portions are configured to deform under the weight of the user to facilitate flexing of the first main portion and the second main portion away from each other, thereby increasing the width of the gap and cushioning the user.

14. The support portion according to claim 13, wherein: The plurality of connection portions are more flexible than the first main portion, the second main portion, the plurality of first extensions, and the plurality of second extensions.

15. The support portion according to claim 13, wherein: At least one of the plurality of connecting portions comprises: a first substantially linear portion extending from said first main portion; a second substantially linear portion extending from the second main portion; and A joining portion connects the first substantially linear portion and the second substantially linear portion.

16. The support portion according to claim 13, wherein: At least one connection portion of the plurality of connection portions is curved and includes at least two inflection points such that the at least one connection portion forms a bell curve shape.

17. The support portion of claim 13, wherein: The plurality of connection portions include a first connection portion and a second connection portion; Each of the first connecting portion and the second connecting portion is curved and includes at least two inflection points, so that the first connecting portion and the second connecting portion each form a bell curve shape; as well as The bell-curve shape of the first connecting portion is taller and / or narrower than the bell-curve shape of the second connecting portion.

18. The seat assembly of claim 2, wherein: an end of the first main portion and an end of the second main portion are each connected to a cross member of the seat back frame; The plurality of first extensions each have a free end connected to a first side member of the seat back frame; and The plurality of second extensions each have a free end connected to a second lateral member of the seat back frame.

19. The seat assembly of claim 2, wherein: The seat back frame includes two side members and at least one cross member connecting the two side members; and The first main portion and the second main portion extend substantially parallel to the two side members of the seat back frame.

20. A support portion for a seat assembly, comprising: The first major part; a second main portion, the second main portion being arranged such that a gap is provided between the first main portion and the second main portion; a plurality of first extensions, the plurality of first extensions protruding from the first main portion away from the gap; as well as a plurality of second extensions, the plurality of second extensions protruding from the second main portion away from the gap; wherein the first main portion and the second main portion are configured to extend along opposite sides of a spine of a user such that the gap is aligned with the spine; The plurality of first extensions and the plurality of second extensions are configured to be coupled to a seat back frame; as well as The plurality of first extensions and the plurality of second extensions are configured to limit pressure on bony prominences of the user.

Citation Information

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