A support assembly for a seat of a vehicle

Abstract

A support assembly (100) for a seat (S) of a vehicle is disclosed The support assembly comprises a mounting plate (10), a cam (30), a plurality of followers (42), and a plurality of spring members (50). The mounting plate (10) is connected to a seat frame (SF) of the seat (S). The cam (30) is rotatably mounted on the mounting plate (10). The plurality of followers (42) is pivotally mounted on the mounting plate (10). Further, at least one portion of the plurality of followers (42) is engaged with a cam profile (32) of the cam (30). The plurality of followers (42) is movable based on the movement of the cam (30). Furthermore, a plurality of spring members (50) is connected to the plurality of followers (42) and the seat frame (SF). Furthermore, the plurality of spring members (50) is configured to be moved between an inflated position (IF) and a deflated position (DF) based on the movement of the plurality of followers (42) for comfort.

Description

A SUPPORT ASSEMBLY FOR A SEAT OF A VEHICLETECHNICAL FIELD

[0001] Present disclosure relates to a field of automobiles. Particularly, the present disclosure relates to a support assembly for a seat of a vehicle that provides proper comfort to users having bodies of different shapes and sizes.BACKGROUND OF THE DISCLOSURE

[0002] The following description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.

[0003] In automobiles or vehicles such as three-wheelers, four-wheelers, etc., seats are provided for a driver or passengers to sit thereon. The seat structure is basically categorized into parts, which are a base portion and a backrest portion. The base portion of the seat structure is provided to support the buttocks of the user and the backrest portion of the seat structure is provided to support the back. A variety of cushion materials is embedded in the base portion and the backrest portion of the seat structure to provide comfort to the user.

[0004] Typically, the conventional seating structures are manufactured based on standard sizes. However, the body shapes and sizes of users are different, therefore the conventional seating structure is not capable of providing comfort to every user. Further, some conventional seating structures are provided with contour- shaped cushion materials, which are also ineffective in providing comfort to the body having different shapes and sizes. Due to uncomfortable seating / posture, the back pain may be raised in the user's body, and this pain may continue for a long time, which is undesirable.

[0005] In some conventional seating structures, lumbar support adjustment devices are provided. These devices include adjustable elongated straps that are mounted on the back portion of the conventional seating structure. The adjustable straps are actuated through a crank and slider mechanism to be adjusted to provide back supportto the user. However, the usage of the crank and slider mechanism to adjust the adjustable strap makes the seating structure, complex.

[0006] The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the prior art.

[0007] The above-mentioned drawbacks / difficulties / disadvantages of the conventional techniques are explained just for exemplary purpose and this disclosure and description mentioned below would never limit its scope only such problem. A person skilled in the art may understand that this disclosure and below mentioned description may also solve other problems or overcome the above-mentioned drawbacks / disadvantages of the conventional arts which are not explicitly captured above.SUMMARY OF THE DISCLOSURE

[0008] The one or more shortcomings of the prior art are overcome by the method as claimed, and additional advantages are provided through the provision of the method as claimed in the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.

[0009] In one non-limiting embodiment of the present disclosure, a support assembly for a seat of a vehicle is disclosed. The support assembly comprises a mounting plate, a cam, a plurality of followers, and a plurality of spring members. The mounting plate is connected to a seat frame of the seat. The cam is rotatably mounted on the mounting plate. The plurality of followers is pivotally mounted on the mounting plate. Further, at least one portion of the plurality of followers is engaged with a cam profile of the cam. The plurality of followers is movable based on the movement of the cam. Furthermore, the plurality of spring members is connected to the plurality of followers. Furthermore, the plurality of spring members is configured to be moved between an inflated position and a deflated position based on the movement of theplurality of followers. The support assembly of the present disclosure is simple and provides proper comfort to users having different shapes and sizes.

[0010] In an embodiment of the present disclosure, each spring member of the plurality of spring members comprises one end connected to the seat frame and the other end connected to the plurality of followers. The connection of the spring members with the seat frame and the followers ensures smooth movement of the spring members.

[0011] In an embodiment of the present disclosure, the plurality of followers comprises a first follower and a second follower, wherein the first follower and the second follower are pivotally mounted at a single mounting point of the mounting plate. The provision of the single mounting point for both followers makes the support assembly compact.

[0012] In an embodiment of the present disclosure, the first follower and the second follower extend from the single mounting point and define a first engagement portion and a second engagement portion respectively.

[0013] In an embodiment of the present disclosure, the first follower and the second follower are biased towards the cam to keep the first engagement portion and the second engagement portion engaged with the cam profile of the cam through the plurality of spring members. The provision of the first engagement portion and the second engagement portion ensures the smooth operation of adjusting the spring members.

[0014] In an embodiment of the present disclosure, the cam profile of the cam is defined with at least one concave- shaped portion and at least one convex-shaped portion.

[0015] In an embodiment of the present disclosure, the first engagement portion and the second engagement portion are engaged with the concave-shaped portions of the cam profile at the deflated position. The provision of the concave- shaped portions and the convex-shaped portion provides a quick response to the knob rotation.

[0016] In an embodiment of the present disclosure, the first engagement portion and the second engagement portion are engaged with the convex- shaped portions of the cam at the inflated position.

[0017] In an embodiment of the present disclosure, the cam comprises a protruding portion extending rearwards through a mounting hole formed at the mounting plate to mount a knob. The provision of protruding portion ensures the smooth movement of the cam and the knob.

[0018] In an embodiment of the present disclosure, the knob is adapted to move the cam in order to actuate the plurality of followers for selectively moving the plurality of spring members from the deflated position to the inflated position for comfort.

[0019] In an embodiment of the present disclosure, the plurality of spring members comprises a first spring member attached to the first follower and a second spring member attached to the second follower.

[0020] In an embodiment of the present disclosure, the first spring member is configured to be moved from the deflated position to the inflated position by rotating the knob in a clockwise direction at 90° angle and the second spring member is configured to be moved from the inflated position to the deflated position by rotating the knob (20) in an anticlockwise direction at 90° angle. These features of the support assembly ensure providing support to different back portions of the user as per requirement.

[0021] In an embodiment of the present disclosure, a cushion member is configured to be positioned between the plurality of spring members and the seat frame.

[0022] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the disclosure.

[0023] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

[0024] The novel features and characteristics of the disclosure are set forth in the description. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following description of an illustrative embodiment when read in conjunction with the accompanying drawings. One or more embodiments are now described, by way of example only, with reference to the accompanying drawings wherein like reference numerals represent like elements and in which:

[0025] Figure 1 illustrates a rear perspective view of a seat of a vehicle, according to an embodiment of the present disclosure.

[0026] Figure 2 illustrates a front perspective view of a support assembly mounted on a seat frame of the seat, according to an embodiment of the present disclosure.

[0027] Figure 3 illustrates a perspective view of the support assembly, according to an embodiment of the present disclosure.

[0028] Figure 4 illustrates a perspective view of a follower of the support assembly, according to an embodiment of the present disclosure.

[0029] Figure 5 illustrates a perspective view of a cam of the support assembly, according to an embodiment of the present disclosure.

[0030] Figure 6 illustrates a front perspective view of a mounting plate of the support assembly, according to an embodiment of the present disclosure.

[0031] Figure 7 illustrates a rear perspective view of the mounting plate of the support assembly, according to an embodiment of the present disclosure.

[0032] Figure 8 illustrates a perspective view of a knob of the support assembly, according to an embodiment of the present disclosure.

[0033] Figure 9 illustrates a perspective view of the support assembly that showcases an inflated position and a deflated position of spring members, according to an embodiment of the present disclosure.

[0034] Skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the drawings may be exaggerated relative to other elements to help to improve understanding of embodiments of the present disclosure.DETAILED DESCRIPTION

[0035] While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in Figures 1 to 9. and will be described in detail below. It should be understood, however, that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure as defined by the appended claims.

[0036] Before describing detailed embodiments, it may be observed that the novelty and inventive steps that are in accordance with the present disclosure reside in a support assembly for a seat of a vehicle. It is to be noted that a person skilled in the art can be motivated by the present disclosure and modification of the support assembly, seat, and vehicle. However, such modification should be construed within the scope of the present disclosure. Accordingly, the drawings show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having the benefit of the description herein.

[0037] In the present disclosure, the term “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment or implementation of the present subject matter described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0038] The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusions, such that an assembly that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such setup or assembly or device or method. In other words, one or more elements in a system or assembly or apparatus or method proceeded by “comprises... a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or assembly or apparatus or method.

[0039] The terms like “at least one” and “one or more” may be used interchangeably or in combination throughout the description.

[0040] Embodiments of the present disclosure disclose a support assembly for a seat of a vehicle. Generally, the seating structure is provided with standard- sized cushion materials. The body shapes and sizes of users are different therefore, the standardsized cushion material is ineffective in providing comfort to the user. Further, in some conventional seating structures, adjustable straps along with a crank and slider mechanism are provided so that the straps can adjust as per the body shape of the user. The usage of the crank and slider mechanism makes the seating structure, complex.

[0041] Accordingly, a support assembly for a seat of a vehicle is disclosed. The support assembly comprises a mounting plate, a cam, a plurality of followers, and a plurality of spring members. The mounting plate is connected to a seat frame of the seat. The cam is rotatably mounted on the mounting plate. The plurality of followers is pivotally mounted on the mounting plate. Further, at least one portion of the plurality of followers is engaged with a cam profile of the cam. The plurality of followers is movable based on the movement of the cam. Furthermore, the plurality of spring members is connected to the plurality of followers. The plurality of spring members is configured to be moved between an inflated position and a deflated position based on the movement of the plurality of followers for comfort.Accordingly, the support assembly of the present disclosure provides proper comfort to users having different body shapes and sizes. Further, the support assembly of the present disclosure is simple, easy to manufacture, and economical.

[0042] Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, same numerals will be used to refer to the same or like parts. Embodiments of the disclosure are described in the following paragraphs with reference to Figures 1 to 9. In Figures 1 to 9, the same element or elements that have the same functions are indicated by the same reference signs.

[0043] Referring to Figure 1, which relates to a seat (S) of a vehicle. The seat (S) may be configured to be utilized in three-wheelers, four-wheelers, and / or heavy vehicles. The seat (S) may be configured to be utilized in fields other than vehicles, without limiting the scope of the present disclosure. The seat (S) is configured for a driver or passengers of the vehicle to sit thereon. The seat (S) comprises a seat frame (SF) and cushion material (C). The seat frame (SF) may be made of metal and configured to support the cushion material (C). The seat frame (SF) may be mounted on a floor of the vehicle. The seat frame (SF) may be defined with a base support portion [not shown in Figures] and a back support portion (BS). The base portion may substantially lie in a horizontal orientation. The base support portion may be configured to support to buttocks of a user. The back support portion (BS) may be connected to the base portion of the seat frame (SF) through mounting provisions (M). The back support portion (BS) may extend from the base portion upwards and / or rearwards to some extent. The back support portion (BS) may be movable about the mounting provisions (M). The back support portion (BS) may be configured to support to back portion of the user.

[0044] The seat (S) comprises a support assembly (100) that may be mounted on the back support portion, as shown in Figure 2. The support assembly (100) is configured to provide proper comfort to users having different body shapes and sizes. The support assembly (100) comprises a mounting plate (10). The mounting plate (10) is mounted at a front side portion of the back support portion of the seat (S). The mounting plate (10) comprises a mounting hole (12), as shown in Figures 6 and 7.The mounting plate (10) may be positioned corresponding to position of a through hole defined at the back support portion of the seat (S). The mounting plate (10) is configured to secure other components of the support assembly (100).

[0045] Referring to Figure 3, which illustrates the support assembly (100). The support assembly (100) comprises a cam (30), a plurality of followers (42), and a plurality of spring members (50). The cam (30) is rotatably mounted on the mounting plate (10). In an embodiment, the cam (30) comprises a protruding portion (30a) that may extend rearwardly through the mounting hole (12) of the mounting plate (10) and the through hole of the back support portion. The protruding portion (30a) is configured to mount a knob (20). The provision of protruding portion (30a) ensures the smooth movement of the cam (30) and the knob (20). The knob (20) may be located at a rear face of the back support portion. The knob (20) is configured to be operated by the user in order to rotate the cam (30). The cam (30) is defined with a cam profile (32) that may be configured to be engaged with the plurality of followers (42). The plurality of followers (42) may be pivotally mounted on the mounting plate (10). The plurality of followers (42) is movable based on the movement of the cam (30).

[0046] In an embodiment, the plurality of followers (42) comprises a first follower (42a) and a second follower (42b). The first follower (42a) and the second follower (42b) may be pivotally mounted at a single mounting point (14) of the mounting plate (10), as shown in Figure 3. The provision of the single mounting point (14) for both followers (42a, 42b) make the support assembly compact. The single mounting point (14) may comprise a pin, about which the first follower (42a) and the second follower (42b) may move in a direction opposite to one another. Further, the movement of the first follower (42a) and the second follower (42b) may be in same direction, without limiting the scope of the present disclosure. The first follower (42a) and the second follower (42b) may be configured to be engaged with the cam profile (32) of the cam (30). Further, the first follower (42a) and the second follower (42b) may be configured to move based on the movement of the cam (30).

[0047] In an embodiment, the first follower (42a) is defined with a first engagement portion (42c), and the second follower (42b) is defined with a second engagementportion (42d), as shown in Figure 9. The first engagement portion (42c) and the second engagement portion (42d) may be configured to be engaged with the cam profile (32) of the cam (30) through a plurality of spring members (50). The plurality of the spring members may be connected to the plurality of followers (42), as shown in Figure 3. In an embodiment, the plurality of spring members (50) may be configured to bias the first follower (42a) and the second follower (42b) towards the cam (30) to keep the first engagement portion (42c) and the second engagement portion (42d) engaged with the cam profile (32) of the cam (30). The provision of the first engagement portion (42c) and the second engagement portion (42d) ensures the smooth operation of adjusting the spring members (50).

[0048] In an embodiment, each spring member of the plurality of spring members (50) has one end connected to the seat frame (SF) and the other end connected to the plurality of followers (42), as shown in Figure 3. The end of the spring member connected to the seat frame (SF) is fixed at a position where the other end connected to the plurality of followers (42) is movable along with the movement of the plurality of followers (42). The connection of the plurality of spring members (50) with the seat frame (SF) and the plurality of followers (42) ensures smooth movement of the spring members (50). The plurality of spring members (50) is configured to be moved between an inflated position (IF) and a deflated position (DF) based on the movement of the plurality of followers (42). The inflated position (IF) and the deflated position (DF) of the plurality of spring members (50) may be adjusted to provide comfort to the user as per their requirements. The inflated position (IF) and the deflated position (DF) of the plurality of spring members (50) may adjust by operating the knob (20) located at the rear side of the back support portion. The inflated position (IF) may be referred to as a position of the spring member (50) in which a portion of the spring member (50) is shifted from a preset position of the spring member (50) towards the back portion of the user to support that back portion. The deflated position (DF) may be referred to as a position of the spring member in which a portion of the spring member is shifted back to the preset position of the spring member from the inflated position (IF). The inflated position (IF) and the deflated position (DF) of the plurality of spring members (50) may be illustrated in Figure 9.

[0049] The plurality of spring members (50) comprises a first spring member (50a), and a second spring member (50b). The first spring member (50a) is attached to the first follower (42a) and the second spring member (50b) is attached to the second follower (42b), as shown in Figures 3 and 9. The first spring member (50a) and the second spring member (50b) may be configured to provide support at different back portions of the user. The first spring member (50a) may move based on the movement of the first follower (42a) and the second spring member (50b) may move based on the movement of the second follower (42b).

[0050] In an embodiment, the cam profile (32) of the cam (30) is defined with at least one concave- shaped portion (34) and at least one convex-shaped portion (36), as shown in Figure 5. In an embodiment, the first engagement portion (42c) of the first follower (42a) and the second engagement portion (42d) of the second follower (42b) are engaged with the concave-shaped portions (34) of the cam profile (32) at the deflated position (DF). Upon rotation of the cam (30), the first engagement portion (42c) and the second engagement portion (42d) slide over the cam profile (32) and are shifted from the concave- shaped portions (34) to the convex-shaped portions (36) resulting in shifting of the first spring member (50a) and the second spring member (50b) from the deflated position (DF) to the inflated position (IF). The provision of the concave- shaped portions (34) and the convex-shaped portion (36) on the cam profile (32) provides a quick response to the knob (20) rotation.

[0051] Figure 8 relates to the knob (20). The knob (20) connected to the cam (30) may be operable by the user to rotate the cam (30). When the knob (20) rotates in a clockwise direction from the knob’s neutral position, at an angle, for example 90°, the cam (30) actuates the first follower (42a) to shift the first spring member (50a) from the deflated position (DF) to the inflated position (IF). When the knob (20) rotates in an anti-clockwise direction from the knob’s neutral position, at an angle, for example, 90°, the cam (30) actuates the second follower (42b) to shift the second spring member (50b) from the deflated position (DF) to the inflated position (IF). This configuration of the support assembly (100) ensures the adjustment of each spring member based on the user requirements.

[0052] The support assembly (100) comprises a cushion member (60), as shown in Figure 3. In an embodiment, the cushion member (60) may be positioned between a portion of the spring members (50) and the first face of the seat frame (SF). The cushion member (60) may be configured to provide comfort to the user when the spring members (50) are pressed through the body of the user.

[0053] In accordance with the present disclosure, the support assembly (100), as explained in the above paragraphs, provide proper comfort to users having different shapes and sizes. Further, the support assembly (100), as recited in the above paragraphs, is simple, easy to manufacture, and economical.

[0054] The various embodiments of the present disclosure have been described above with reference to the accompanying drawings. The present disclosure is not limited to the illustrated embodiments; rather, these embodiments are intended to fully and completely disclose the subject matter of the disclosure to those skilled in this art. In the drawings, like numbers refer to like elements throughout. The thicknesses and dimensions of some components may be exaggerated for clarity.

[0055] Herein, the terms “attached”, “connected”, “interconnected”, “contacting”, “mounted”, “coupled” and the like can mean either direct or indirect attachment or contact between elements, unless stated otherwise.

[0056] Well-known functions or constructions may not be described in detail for brevity and / or clarity. As used herein the expression “and / or” includes any and all combinations of one or more of the associated listed items.

[0057] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and / or “including” when used in this specification, specify the presence of stated features, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, operations, elements, components, and / or groups thereof.

[0058] While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other modifications in the nature of the disclosure or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

[0059] LIST OF REFERENCE NUMERALS

[0060] EQUIVALENTS:The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and / or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.Any discussion of documents, acts, materials, devices, articles and the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the field relevant to the disclosure as it existed anywhere before the priority date of this application.The numerical values mentioned for the various physical parameters, dimensions or quantities are only approximations and it is envisaged that the values higher / lower than the numerical values assigned to the parameters, dimensions or quantities fall within the scope of the disclosure, unless there is a statement in the specification specific to the contrary.

Claims

We claim:

1. A support assembly (100) for a seat (S) of a vehicle, the support assembly (100) comprising: a mounting plate (10) connected to a seat frame (SF) of the seat (S); a cam (30) rotatably mounted on the mounting plate (10); a plurality of followers (42) pivotally mounted on the mounting plate (10), wherein at least one portion of the plurality of followers (42) is engaged with a cam profile (32) of the cam (30), wherein the plurality of followers (42) is movable based on the movement of the cam (30); and a plurality of spring members (50) connected to the plurality of followers (42), wherein the plurality of spring members (50) is configured to be moved between an inflated position (IF) and a deflated position (DF) based on the movement of the plurality of followers (42) for comfort.

2. The support assembly (100) as claimed in claim 1, wherein each spring member of the plurality of spring members (50) comprises one end connected to the seat frame (SF) and the other end connected to the plurality of followers (42).

3. The support assembly (100) as claimed in claim 1, wherein the plurality of followers (42) comprises a first follower (42a) and a second follower (42b), wherein the first follower (42a) and the second follower (42b) are pivotally mounted at a single mounting point (14) of the mounting plate (10).

4. The support assembly (100) as claimed in claim 3, wherein the first follower (42a) and the second follower (42b) extend from the single mounting point (14) and define a first engagement portion (42c), and a second engagement portion (42d) respectively.

5. The support assembly (100) as claimed in claim 4, wherein the first follower (42a) and the second follower (42b) are biased towards the cam (30) to keep the first engagement portion (42c) and the second engagement portion (42d) engaged with the cam profile (32) of the cam (30) through the plurality of spring members (50).

6. The support assembly (100) as claimed in claim 1, wherein the cam profile (32) of the cam (30) is defined with at least one concave-shaped portion (34) and at least one convex-shaped portion (36).

7. The support assembly (100) as claimed in claims 4 and 6, wherein the first engagement portion (42c) and the second engagement portion (42d) are engaged with the concave- shaped portions (34) of the cam profile (32) at the deflated position (DF).

8. The support assembly (100) as claimed in claims 4 and 6, wherein the first engagement portion (42c) and the second engagement portion (42d) are engaged with the convex-shaped portions (36) of the cam (30) at the inflated position (IF).

9. The support assembly (100) as claimed in claim 1, wherein the cam (30) comprises a protruding portion (30a) extending rearwards through a mounting hole (12) formed at the mounting plate (10) to mount a knob (20).

10. The support assembly (100) as claimed in claim 9, wherein the knob (20) is adapted to move the cam (30) in order to actuate the plurality of followers (42) for selectively moving the plurality of spring members (50) from the deflated position (DF) to the inflated position (IF) for comfort.

11. The support assembly (100) as claimed in claim 1, wherein the plurality of spring members (50) comprises a first spring member (50a) attached to the first follower (42a) and a second spring member (50b) attached to the second follower (42b).

12. The support assembly (100) as claimed in claim 11, wherein the first spring member (50a) is configured to be moved from the deflated position (DF) to the inflated position (IF) by rotating the knob (20) in a clockwise direction at 90° angle and the second spring member (50b) is configured to be moved from thedeflated position (DF) to the inflated position (IF) by rotating the knob (20) in an anticlockwise direction at 90° angle.

13. The support assembly (100) as claimed in claim 1, comprising a cushion member (60) configured to be positioned between the plurality of spring members (50) and the seat frame (SF).

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