FORM 2
THE PATENTS ACT,
1970 (39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10, rule 13)
“A SUNROOF HEADLINER ATTACHEMENT SYSTEM ”
TATA MOTORS PASSENGER VEHICLES LIMITED an Indian company of Floor 3, 4, Plot-18, Nanavati Mahalaya, Mudhana Shetty Marg, BSE, Fort, Mumbai, Mumbai City, Maharashtra 400001, India
The following specification particularly describes the invention and the manner it is to be performed.

TECHNICAL FIELD
[01] Present disclosure, in general, relates to the field of automobile. Particularly, but not exclusively, the present disclosure relates to a sunroof headliner assembly system .
BACKGROUND
[02] In many passenger cars/SUVs, an opening is provided in the roof to permit the introduction of additional light and air during operation. Such openings are referred to generally as “sunroofs/pano roofs.” The sunroof typically includes an assembly frame surrounding an opening in which a sliding /tilting window is mounted. The assembly frame around the headliner sunroof cutout is secured to the underlying metal of the vehicle roof body. An aesthetic and noise damping headliner of a stabilized soft material or the like typically extends in surrounding relation to the sunroof in covering relation to the sunroof assembly frame and outboard portions of the roof. The headliner is required to be held in secure relation relative to the assembly frame.
[03] Conventionally, single/ dual lock fasteners are developed for securing the headliner assembly with the vehicle roof and sunroof system, and high levels of installation force and effort are required to establish the connection of the headliner to the sunroof assembly frame. The relatively high force levels for said installation requires a worker to be positioned at the interior of the vehicle to provide adequate upward/blind pushing force during assembly. The need for high installation forces may also lead to incidents of misalignment or partial engagement.
[04] Further, the headliner may be attached around the sunroof assembly in a variety of manners, including magnets and hook and loop type fasteners, such as dual lock fasteners. These manners of attachment are substantially hidden from view, which commonly causes difficulties in manufacturing, as the headliner must be vertically suspended by the assembler to align the fasteners. Further, once the fasteners are attached, they provide little to no movement to allow for adjusting the position of the headliner to attach additional fasteners.
[05] Moreover, around 15 to 20 magnets or dual lock fastener pieces are required for
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attaching the headliner with the sunroof assembly, and thereby high inventory is required and the total cost for the sunroof headliner attachment system increases. Further, improper assembly of the headliner with the sunroof frame assembly leads to wrinkles, marks and stress on the headliner, thereby deteriorating aesthetic appeal of the vehicle.
[06] Accordingly, there remains a need in the domain for an improved sunroof headliner assembly system and a method for assembling the sunroof headliner that overcome at least the problems identified above.
[07] The drawbacks/difficulties/disadvantages/limitations of the conventional techniques explained in the background section are just for exemplary purpose and the disclosure would never limit its scope only such limitations. A person skilled in the art would understand that this disclosure and below mentioned description may also solve other problems or overcome the other drawbacks/disadvantages of the conventional arts which are not explicitly captured above.
SUMMARY
[08] One or more shortcomings of the limitations stated above are overcome by a sunroof headliner attachment system as claimed, and additional advantages are provided through the provision of the system as claimed in the present disclosure. Additional features and advantages are realized through the aspects and 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.
[09] In a non-limiting embodiment of the present disclosure, a sunroof headliner attachment system for a vehicle is disclosed. The system includes a headliner and a sunroof assembly. The system is adapted to couple with a part of a roof of a vehicle. The headliner includes a metal frame and a soft material headliner fabric adapted to be coupled/ attached to the metal frame of the headliner. The metal frame of the headliner includes a first side edge and a second side edge defined opposite to the First side edge. Each of the first side edge and the second side edge defined to form an intermediate portion of the metal frame by way of a wall. Further, the sunroof assembly includes a first engagement edge and a second engagement edge. In accordance with the present
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disclosure, one of the first engagement edge or the second engagement edge being adapted to be mounted on to one of the first side edge and the second side edge of the metal frame of the headliner, respectively, for coupling the sunroof assembly with the headliner.
[10] In an embodiment of the present disclosure, the headliner fabric includes a frontward edge and a rearward edge to couple the headline fabric and the metal frame with the sunroof assembly.
[11] In an embodiment of the present disclosure, the wall is defined with a curved profile, to be selectively deformable between the first side edge and the second side edge of the metal frame.
[12] In an embodiment of the present disclosure, the wall is deflected to engage the at least one of the frontward edge with the frontward edge of the headliner fabric.
[13] In an embodiment of the present disclosure, the wall is deflected to engage the second side edge with the rearward edge of the headliner fabric.
[14] In an embodiment of the present disclosure, the one of the first side edge of the metal frame is adapted to be mounted on the one of the first engagement edge or the second engagement edge of the sunroof assembly.
[15] In an embodiment of the present disclosure, the second side edge of the metal frame is adapted to be mounted on the first engagement edge of the sunroof assembly. The frontward edge of the headliner fabric is adapted to be accommodated between the first side edge of the metal frame and the first engagement edge of the sunroof assembly.
[16] In an embodiment of the present disclosure, the rearward edge of the headliner fabric is
adapted to be accommodated between the second side edge of the metal frame and the
second engagement edge of the sunroof assembly.
[17] In an embodiment of the present disclosure, the headliner fabric and the metal frame define a gap to accommodate the headliner fabric on to the metal frame.
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[18] Within the scope of the present disclosure, the system for sunroof headliner assembly eliminate requirement of magnets and dual lock fasteners for coupling the headliner with the sunroof assembly, thereby facilitating reduced inventory, reduced assembly time and costs related thereto. Further, the system for the sunroof headliner assembly of the present disclosure eliminate issue of magnet/ dual lock fastener engagement/ disengagement.
[19] Also, the gap defined between the headliner fabric and the metal frame of the headliner facilitates creating/ allowing flexibility of the headliner fabric with respect to the metal frame, and thus eliminates the issues related to the marks in the headliner fabric. Additionally, the sunroof headliner assembly system may be customized according to the vehicle type and the vehicle body (i.e., the roof of the vehicle).
[20] 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.
[21] 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 FIGURES
[22] The novel features and characteristics of the present disclosure are set forth in the present description. The present 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:
[23] FIG. 1 illustrates a sunroof headliner assembly system comprising a sunroof
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assembly and a headliner, in accordance with an embodiment of the present disclosure;
[24] FIG. 2 illustrates a right-side view of the sunroof headliner assembly system of FIG. 1, in accordance with an embodiment of the present disclosure; and
[25] FIG. 3 illustrates a left-side view of the sunroof headliner assembly system of FIG. 1, in accordance with an embodiment of the present disclosure.
[26] The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DETAILED DESCRIPTION
[27] The foregoing has broadly outlined the features and technical advantages of the present disclosure in order that the detailed description of the disclosure that follows may be better understood. Additional features and advantages of the disclosure will be described hereinafter which form the subject of the claims of the disclosure. It should be appreciated by those skilled in the art that, the conception and specific embodiments disclosed may be readily utilized as a basis for modifying other systems, mechanisms, devices, and assemblies for carrying out the same purposes of the present disclosure. It should also be realized by those skilled in the art that, such equivalent constructions do not depart from the scope of the disclosure as set forth in the appended claims. The novel features which are believed to be characteristics of the disclosure, to its system, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures. It is to be expressly understood, however, that each of the figures is provided for the purpose of illustration and description only and is not intended as a definition of the limits of the present disclosure.
[28] The terms “comprises”, “comprising”, or any other variations thereof, are intended to cover a non-exclusive inclusions, such that a mechanism, an assembly, or a device that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup
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or device or method. In other words, one or more elements in a system or apparatus proceeded by “comprises… a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus.
[29] The terms “front/forward”, “rear/rearward/back/backward”, “up/upper/top”, “down/lower/lower ward/downward, bottom”, “left/leftward”, “right/rightward” used therein represents the directions as seen from a vehicle driver sitting astride.
[30] 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 FIGS. 1 to 3. In FIGS. 1 to 3, the same element or elements which have same functions are indicated by the same reference signs.
[31] Referring to FIGS. 1-3, a sunroof headliner attachment system (10) (hereinafter referred to as “the system (10)”) is disclosed. The system (10) comprises a headliner(60) and a sunroof assembly (40). Within the scope of the present disclosure, the headliner (60) includes a metal frame (70) and a headliner fabric (70) adapted to be coupled/ attached to the metal frame (70). Without deviating from the scope of the present disclosure, the metal frame (70) and the headliner fabric (80) may be manufactured as a unitary structure such that the metal frame (70)and the headliner fabric (80) are manufactured and/ or available (for procurement) as a single unit.
[32] In an embodiment of the present disclosure, the system (10) is adapted to couple with a
roof of a vehicle (not shown). The roof of the vehicle may be supported by various
pillars, including an A-pillar, a B-pillar, a C-pillar, and a D-pillar. A front door may be
defined between the A-pillar and the B-pillar, and a rear door may be defined between
the B-pillar and the C-pillar. The opposing side of the vehicle similarly
comprises a corresponding arrangement of pillars that support the opposing side of the
roof. A header extends between the A-pillars and the D-pillars to support the front and
rear portions of the roof, respectively. It is contemplated that various alternative pillar
arrangements may support the vehicle roof having the system (10) of the present
disclosure. Accordingly, the vehicle may conceivably include alternative vehicle types,
such as all passenger vehicles, i.e., cars/SUVs, trucks, boats, and other conceivable
vehicles as generally understood by one having ordinary skill in the art.
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[33] The roof of the vehicle may comprise a roof panel that engages a top surface of the sunroof assembly (40). The roof panel may be formed to have a central aperture that includes a rim that borders at least one side of the sunroof headliner assembly system (10), concealing the peripheral structure/ frame of the sunroof assembly (40). In an embodiment, the sunroof assembly (40) may comprise a forward glass panel (42’) and a rearward glass panel (42’’). The forward and rearward glass panels (42’, 42’’) engage along a seal that extends laterally across a central portion of the sunroof assembly (40). It is contemplated that the forward glass panel (42’) may be raised away from the seal and slide rearwardly over the rearward glass panel (42’’). It is also conceivable that additional glass panels may be included and alternative glass panel sliding configurations may be employed within the scope of the system (10).
[34] Further, the headliner (60) may comprise an upper surface that surrounds an opening (62). The opening (62) may be formed to align with the glass panels (42’, 42’’) of the sunroof assembly (40), such that the headliner (60) conceals the peripheral structure of the sunroof assembly (40) from view within the interior of the vehicle.
[35] In accordance with the present disclosure, the metal frame (70) of the headliner (60) comprises a first side edge (74) and a second side edge (76) defined opposite to the first side edge (74). Specifically, the peripheral structure of the metal frame (70) comprises the first side edge (74) and the second side edge (76). As illustrated in the FIGS.2 and 3, each of the first side edge (74) and the second side edge (76) of the metal frame (70) is contained in a plane that is vertically above the plane containing the intermediate portion (72) of the metal frame (70). Without deviating from the scope of the present disclosure, each of the first side edge (74) and the second side edge (76) is defined to form the intermediate portion (72) by way of a wall (78’, 78’’) that has a curved profile, when seen from a cross-section taken along a plane parallel to a longitudinal axis of the vehicle. The first side edge (74) may be a left side of the vehicle or a right side of the vehicle and when the first side edge (74) is the left side of the vehicle then the second side edge (76) may be the converse of the first side edge (74). Further, the wall (78’, 78’’) may be selectively deformable between the forward edge (74) and the second side edge (76 ) of the metal frame (70). The wall (78’,78”) may be defined with a variable thickness when compared to the edge (74,76) or to the intermediate portion (72). Within the scope of the present disclosure, the wall (78’) of
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the metal frame (70) associated with the first side edge (74) facilitates deflecting the first side edge (74) with respect to the intermediate portion (72) in a left direction of the vehicle. Similarly, the wall (78’’) of the metal frame (70) associated with the second side edge (76) facilitates deflecting the second side edge (76) with respect to the intermediate portion (72) in a right direction of the vehicle. The deflection is in the form of bending for example the first side edge (74) may correspond to the left side of the vehicle then the bending of the first side edge (74) with respect the intermediate portion (72) may be towards the left side of the vehicle. Similarly, the second side edge (76) may correspond to the right side of the vehicle then the bending of the second side edge (76) with respect the intermediate portion (72) may be towards the right side of the vehicle.
[36] In accordance with the present disclosure, the sunroof assembly (40) of the system (10) includes a first engagement edge (44) and a second engagement edge (46). As illustrated in FIGS. 2 and 3, the first engagement edge (44) and the second engagement edge (46) may extend/ tilt downwardly and angularly (by way of an ‘L-shaped’ bracket) from the rim of the sunroof assembly (40). The first engagement edge (44) may extend in the left direction of the vehicle and the second engagement edge (46) may extend in the right direction of the vehicle. Within the scope of the present disclosure, one of the first engagement edge (44) or the second engagement edge (46) being adapted to be mounted on to one of the first side edge (74) and the second side edge (76) of the metal frame (70) of the headliner (60), respectively, for coupling the sunroof assembly (40) with the headliner (60). For example, during the mounting of the first engagement edge (44) with the first side edge (74) the first engagement edge (44) bends the wall (78’) in the left direction of the vehicle. Further, during the mounting of the second engagement edge (46) with the second side edge (76), the second engagement edge (46) bends the wall (78”) in the right direction of the vehicle.
[37] In an embodiment of the present disclosure, at the frontward end of the sunroof assembly (40), once the metal frame (70) is coupled with the sunroof assembly (40), the first side edge (74) of the metal frame (70) and the first engagement edge (44) of the sunroof assembly (40) are stacked vertically. Specifically, the first engagement edge (44) of the sunroof assembly (40) is mounted on the first side edge (74) of the metal frame (70) . Similarly, at the rearward end of the sunroof assembly (40), once
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the metal frame (70) is coupled with the sunroof assembly (40), the second side edge (76) of the metal frame (70) and the second engagement edge (46) of the sunroof assembly (40) are stacked vertically. Specifically, the second engagement edge (46) of the sunroof assembly (40)is mounted on the second side edge (76) of the metal frame (70).
[38] In an embodiment, for coupling the metal frame (70) with the sunroof assembly (40), the second engagement edge (46) of the sunroof assembly (40) is mounted on the second side edge (76) of the metal frame (70). Thereafter, the first side edge (74) of the metal frame (70) is arranged proximal to the first engagement edge (44) of the sunroof assembly (40) and subsequently, the first side edge (74) is deflected, with respect to the intermediate portion (72), in the left direction of the vehicle by way of the wall (78’) associated with the first side edge (74) and the first side edge (74) is pushed upwards such that, upon retraction of the wall (78’), the first side edge (74) of the metal frame (70) mounts on the first engagement edge (44) of the sunroof assembly (40), thereby coupling the sunroof assembly (40) with the metal frame (70) of the headliner (60).
[39] In another embodiment, for coupling the metal frame (70) with the sunroof assembly (40), the first side edge (74) of the metal frame (70) is mounted on the first engagement edge (44) of the sunroof assembly (40). Thereafter, the second side edge (76) of the metal frame (70) is arranged proximal to the second engagement edge (46) of the sunroof assembly (40) and subsequently, the second side edge (76) is deflected, with respect to the intermediate portion (72), in the right direction of the vehicle by way of the wall (78’’) associated with the second side edge (76) and the second side edge (76) is pushed upwards such that, upon retraction of the wall (78’’), the second side edge (76) of the metal frame (70) mounts on the second engagement edge (46) of the sunroof assembly (40), thereby coupling the sunroof assembly (40) with the metal frame (70).
[40] Within the scope of the present disclosure, the headliner fabric (80) may be formed with
the metal frame (70) of the headliner (60) according to the system (10) of the present
disclosure. As illustrated in FIGS. 2 and 3, the edges of the headliner fabric (80) may be
attached, for example, pasted, fastened, etc., with the edges of the metal frame (70).
For example, a frontward edge (84) of the headliner fabric (80) may be coupled with
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the first side edge (74) of the metal frame (70) and a rearward edge (86) of the headliner fabric (80) maybe coupled with the second side edge (76) of the metal frame (70). In an embodiment, the frontward edge (84) of the headliner fabric (80) may be arranged over the first side edge (74) of the metal frame (70), as illustrated in FIG. 2. Similarly, the rearward edge (86) of the headliner fabric (80) may be arranged over the second side edge (76) of the metal frame (70), as illustrated in FIG. 3.
[41] In a further embodiment of the present disclosure, the headliner fabric (80) may be coupled to the metal frame (70) leaving a gap (68) therebetween. The gap (68) may accommodate headliner fabric (80) on to the metal frame (70). Further, the gap (68) may facilitate creating/ allowing flexibility of the headliner fabric (80) with respect to the metal frame (70).
[42] In an embodiment, for coupling the metal frame (70) and the headliner fabric (80) with the sunroof assembly (40), the second engagement edge (46) of the sunroof assembly (40) is mounted on the second side edge (76) of the metal frame (70) accommodating the rearward edge (86) of the headliner fabric (80) between the second engagement edge (46) of the sunroof assembly (40) and the second side edge (76) of the metal frame (70). Thereafter, the first side edge (74) of the metal frame (70) that carries the frontward edge (84) of the headliner fabric (80) is arranged proximal to the first engagement edge (44) of the sunroof assembly (40). Subsequently, the first side edge (74) of the metal frame (70) is deflected, with respect to the intermediate portion (72), in the left direction of the vehicle by way of the wall (78’) associated with the first side edge (74) and the first side edge (74) is pushed upwards such that, upon retraction of the wall (78’), the first side edge (74) of the metal frame (70) mounts on the first engagement edge (44) of the sunroof assembly (40) accommodating the frontward edge (84) of the headliner fabric (80) between the first side edge (74) of the metal frame (70) and the first engagement edge (44) of the sunroof assembly (40), thereby coupling the headliner (60) with the sunroof assembly (40).
[43] In another embodiment, for coupling the metal frame (70) and the headliner fabric (80) with the sunroof assembly (40), the first engagement edge (44) of the sunroof assembly (40)is mounted on the first side edge (74) of the metal frame (70) accommodating the frontward edge (84) of the headliner fabric (80) between the
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first engagement edge (44) of the sunroof assembly (40) and the first side edge (74) of the metal frame (70). Thereafter, the second side edge (76) of the metal frame (70) that carries the rearward edge (86) of the headliner fabric (80) is arranged proximal to the second engagement edge (46) of the sunroof assembly (40) and subsequently, the second side edge (76) of the metal frame (70) is deflected, with respect to the intermediate portion (72), in the right direction of the vehicle by way of the wall (78’’) associated with the second side edge (76) and the second side edge (76) is pushed upwards such that, upon retraction of the wall (78’’), the rearward edge (76) of the metal frame (70) mounts on the second engagement edge (46) of the sunroof assembly (40) accommodating the rearward edge (86) of the headliner fabric (80) between the rearward edge (76) of the metal frame (70) and the second engagement edge (46) of the sunroof assembly (40), thereby coupling the headliner (60) with the sunroof assembly (40).
[44] Within the scope of the present disclosure, the system (10) eliminate the requirement of magnets and dual lock fasteners for coupling the headliner (60) with the sunroof assembly (40), thereby facilitating reduced inventory, reduced time of assembly and reduced cost. Further, the system (10) of the present disclosure eliminate issue of magnet/ dual lock fastener engagement/ disengagement.
[45] Also, the gap (68) defined between the headliner fabric (80) and the metal frame (70) of the headliner (60) facilitates creating/ allowing flexibility of the headliner fabric (80) with respect to the metal frame (70), and thus eliminates the issues related to the marks in the headliner fabric (80). Additionally, the sunroof headliner assembly system (10) may be customized according to the vehicle type and the vehicle body (i.e., the roof of the vehicle).
EQUIVALENTS:
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
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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 scope of the embodiments as described herein.
Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers, or steps, but not the exclusion of any other element, integer or step, or group of elements, integers, or steps.
The use of the expression “at least” or “at least one” suggests the use of one or more elements or ingredients or quantities, as the use may be in the embodiment of the disclosure to achieve one or more of the desired objects or results.
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.
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
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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.
REFERENCE NUMERALS

PARTICULARS REFERRAL NUMERAL
Sunroof Headliner Attachment System 10
Sunroof Assembly 40
Forward Glass Panel 42’
Rearward Glass Panel 42’’
First Engagement Edge 44
Second Engagement Edge 46
Headliner 60
Opening 62
Gap 68
Metal Frame 70
Intermediate Portion 72
First Side Edge 74
Second Side Edge 76
Wall 78’
Wall 78’’
Headliner Fabric 80
Frontward Edge 84
Rearward Edge 86

We claim :
1. A sunroof headliner attachment system (10) of a vehicle, the system (10) comprising: a headliner (60) comprising:
a metal frame (70) coupled with a headliner fabric (80), the metal frame (70) comprising:
a first side edge (74) and a second side edge (76), defined opposite to the first side edge (74), wherein each of the first side edge (74) and the second side edge (76) defined to form an intermediate portion (72) of the metal frame (70) by way of a wall (78’,78”); and a sunroof assembly (40), comprising:
a first engagement edge (44) and a second engagement edge (46), wherein one of the first engagement edge (44) or the second engagement edge (46) being adapted to be mounted on to one of the first side edge (74) and the second side edge (76) of the metal frame (70) of the headliner (60), respectively, for coupling the sunroof assembly (40) with the headliner (60).
2. The sunroof headliner attachment system (10) as claimed in claim 1, wherein the headliner fabric (80) comprise a frontward edge (84) and a rearward edge (86) to couple the headline fabric (80) and the sunroof assembly (40) with the metal frame (70).
3. The sunroof headliner attachment system (10) as claimed in claim 1, the wall (78’,78”) is defined with a curved profile, to be selectively deformable between the first side edge (74) and the second side edge (76) of the metal frame (70).
4.The sunroof headliner attachment system (10) as claimed in claim 3, wherein the wall (78’,78”) is deflected to engage the at least one of the first side edge (74) with the frontward edge (84) of the headliner fabric (80).
5. The sunroof headliner attachment system (10) as claimed in claim 3, wherein the wall (78’,78”) is deflected to engage the second side edge (76) with the rearward edge (86) of the headliner fabric (80).

6. The sunroof headliner attachment system (10) as claimed in claim 1, wherein the one of the First side edge (74) of the metal frame (70) is adapted to be mounted on the one of the first engagement edge (44) or the second engagement edge (46) of the sunroof assembly (40).
7. The sunroof headliner attachment system (10) as claimed in claim 1, wherein the second side edge (76) of the metal frame (70) is adapted to be mounted on the first engagement edge (44) of the sunroof assembly (40), and wherein the frontward edge (84) of the headliner fabric (80) is adapted to be accommodated between the First side edge (74) of the metal frame (70) and the first engagement edge (44) of the sunroof assembly (40).
8. The sunroof headliner attachment system (10) as claimed in claim 2, wherein the rearward edge (86) of the headliner fabric (80) is adapted to be accommodated between the second side edge (76) of the metal frame (70) and the second engagement edge (46) of the sunroof assembly (40).
9. The sunroof headliner attachment system (10) as claimed in claim 1wherein the headliner fabric (80) and the metal frame (70) define a gap (68) to accommodate the headliner fabric (80) on to the metal frame (70).