, Description:AN OPTIMIZED TRIM MOUNTING PORTION FOR BACK DOOR OF A VEHICLE
FIELD OF INVENTION:
[001] The present subject matter described herein, relates to a vehicle construction and more particularly, relates to a back door trim mounting area.
BACKGROUND AND PRIOR ART:
[002] In hatchback vehicles usually, trim mounting area contains multiple cutouts to meet the assembly and service requirements. Further, to cover these multiple cutouts the size of trim board is quite big. The existing trim mounting area consists of multiple assembly and service cutouts which results in reducing the stiffness of trim mounting area, and to counter this problem multiple bridges are provided along the multiple cutouts. This leads to a big trim mounting area, which requires a big trim board to cover this complete area. Hence, trim board cost for this structure is very high, and formability is complex.
[003] United States Design Patent publication USD803123S1 provides an ornamental design for a body part for a vehicle, wherein a back-door structure of a vehicle is provided.
[004] However, the assembly, shape, operation and location of the parts mentioned in the prior art are not similar to the present disclosure.
OBJECTS OF THE INVENTION:
[005] The principal objective of the present invention is to provide an optimized trim mounting portion for back door of a vehicle.
[006] Another object of the present subject matter is to provide a simple, cost effective, and efficiently designed trim mounting portion that is distinct from all conventional designs.
SUMMARY OF THE INVENTION:
[007] The present invention relates to an optimized trim mounting portion provided substantially in a center of a back door of a vehicle. The trim mounting portion includes a top edge, a bottom edge, and a plurality of side edges separating the top edge from the bottom edge, wherein the top edge includes an upper part, a lower part and a stepped portion connecting the upper part and the lower part; a T-shaped structure including the stepped portion proximal to the top edge, and a web bridge connecting the lower part of the top edge and the bottom edge, wherein the web bridge and the lower part defines the T-shaped structure; and a plurality of cutouts, each of the plurality of cutouts defines an irregular shape between the lower part of the top edge, the bottom edge, the side edges, and the web bridge, wherein the plurality of cutouts are symmetrical about a center line axis of the back door passing through the web bridge.
[008] In order to further understand the characteristics and technical contents of the present subject matter, a description relating thereto will be made with reference to the accompanying drawings. However, the drawings are illustrative only but not used to limit scope of the present subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS
[009] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system or methods in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
[0010] Fig. 1 illustrates a schematic of a back door of a vehicle;
[0011] Fig. 2a illustrates a detailed view of trim mounting portion in accordance with an embodiment of the present disclosure; and
[0012] Fig. 2b illustrates a sectional view of the trim mounting portion about a section A-A’.
[0013] The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily 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.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0014] The present disclosure presents embodiments for an optimized trim mounting portion provided substantially in a center of a back door of a vehicle. The trim mounting portion includes a top edge, a bottom edge, and a plurality of side edges separating the top edge from the bottom edge, wherein the top edge includes an upper part, a lower part and a stepped portion connecting the upper part and the lower part; a T-shaped structure including the stepped portion proximal to the top edge, and a web bridge connecting the lower part of the top edge and the bottom edge, wherein the web bridge and the lower part defines the T-shaped structure; and a plurality of cutouts, each of the plurality of cutouts defines an irregular shape between the lower part of the top edge, the bottom edge, the side edges, and the web bridge, wherein the plurality of cutouts are symmetrical about a center line axis of the back door passing through the web bridge.
[0015] It should be noted that the description and figures merely illustrate the principles of the present subject matter. It should be appreciated by those skilled in the art that conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present subject matter. It should also be appreciated by those skilled in the art that by devising various arrangements that, although not explicitly described or shown herein, embody the principles of the present subject matter and are included within its spirit and scope. Furthermore, all examples recited herein are principally intended expressly to be for pedagogical purposes to aid the reader in understanding the principles of the present subject matter and the concepts contributed by the inventor(s) to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. The novel features which are believed to be characteristic of the present subject matter, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures.
[0016] These and other advantages of the present subject matter would be described in greater detail with reference to the following figures. It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.
[0017] Fig. 1 illustrates a schematic of a back door 101 of a vehicle (not shown). In an embodiment, the back door 101 of the vehicle includes an optimized trim mounting portion 100 provided substantially in a center in accordance with an embodiment of the present disclosure. In an example, the trim mounting portion 100 is configured to receive a door trim board (not shown).
[0018] Fig. 2a illustrates a detailed view of the trim mounting portion 100 in accordance with an embodiment of the present disclosure. In an embodiment, the trim mounting portion 100 includes a top edge 102, a bottom edge 104, and a plurality of side edges 106 separating the top edge 102 from the bottom edge 104. The top edge 102 includes an upper part 103, a lower part 107 and a stepped portion 110 connecting the upper part 103 and the lower part107. The trim mounting portion 100 further includes a T-shaped structure 108 including the stepped portion 110 proximal to the top edge 102. The T-shaped structure 108 further includes a web bridge 112 connecting the lower part 107 of the top edge 102 and the bottom edge 104, such that the web bridge 112 and the lower part 107 defines the T-shaped structure 108. In an example, the web bridge 112 provides additional rigidity to the trim mounting portion 100.
[0019] In an embodiment, the trim mounting portion 100 further includes a plurality of cutouts 114. In an example, each of the plurality of cutouts 114 defines an irregular shape between the lower part 107 of the top edge 102, the bottom edge 104, the side edges 106, and the web bridge 112. Alternatively, plurality of cutouts 114 may define any regular geometrical shape known in the art.
[0020] In an embodiment, the plurality of cutouts 114 are symmetrical about a center line axis O-O of the back door 101 passing through the web bridge 112. In another example, the plurality of cutouts 114 may be asymmetrically provided in the trim mounting portion 100.
[0021] As shown in Fig. 2a, in an embodiment, a plurality of trim board mounting clips 115 are provided on the trim mounting portion 100. In an example, at least one of the trim board mounting clip 115 of the plurality of trim board mounting clips 115 is adjacent to the stepped portion 110 of the T-shaped structure 108. Further, wire harness routings 116 are provided adjacent to the stepped portion 110 of the T-shaped structure 108, such that the plurality trim board mounting clips 115 and the wire harness routings 116 define a step 118 there between. In an example, trim board mounting clips 115 are positioned in such a manner so as to avoid contact with a wiring harness in vehicle running condition to avoid damage to the wiring harness. Further, a shape associated with the wire harness routings 116 provides ease of assembly of the wire harness. In an example, the step 118 defined with the wire harness routings 116 is configured to receive wiring harness through a wiring harness mounting 117 provided on the web bridge 112.
[0022] As shown in Fig. 2a, the trim mounting portion 100 includes a plurality of hole spaces 122 that are provided adjacent to the plurality of side edges 106. In an example, the hole spaces 122 provides easy harness pulling and assembly of defogger grommet. Further, a plurality of flat lands 124 are provided adjacent to bottom edge 104. In an example, the flat lands 124 are secured for spot welding of the back door center reinforcement, such that the back door does not fail under buckling conditions. Fig. 2b illustrates a sectional view of the trim mounting portion 100 about a section A-A’ passing through the web bridge 112 of the T-shaped structure 108 of Fig. 2a. As shown in Fig. 2b, an underside of the web bridge 112 of the T-shaped structure 108 proximal to the top edge 102 includes no stepped portion at a position 200. Such a non-provision of the stepped portion eliminates injury to an operator’s hand during assembling of various components through the plurality of cutouts 114. Further, as shown in Fig. 2b, the web bridge 112 includes a bead shape 202, wherein the bead shape 202 provides strength to the T-shaped structure 108.
[0023] The optimized design associated with the trim mounting portion 100 requires a relatively smaller sized door trim board as compared to the conventional designs. This reduces the trim board cost, and difficulties associated with the formability of large trim boards. Further, the optimized design of the trim mounting portion 100 provides easy assembly of harness and other related components.
[0024] Although embodiments for the present subject matter have been described in language specific to structural features, it is to be understood that the present subject matter is not necessarily limited to the specific features described. Rather, the specific features and methods are disclosed as embodiments for the present subject matter. Numerous modifications and adaptations of the system/component of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the scope of the present subject matter.

Claims:We claim:
1. An optimized trim mounting portion (100) provided substantially in a center of a back door (101) of a vehicle, the trim mounting portion (100) comprising:
a top edge (102), a bottom edge (104), and a plurality of side edges (106) separating the top edge (102) from the bottom edge (104), wherein the top edge (102) includes an upper part (103), a lower part (107) and a stepped portion (110) connecting the upper part (103) and the lower part (108);
a T-shaped structure (108) including the stepped portion (110) proximal to the top edge (102), and a web bridge (112) connecting the lower part (107) of the top edge (102) and the bottom edge (104), wherein the web bridge (112) and the lower part (107) defines the T-shaped structure (108); and
a plurality of cutouts (114), each of the plurality of cutouts (114) defines an irregular shape between the lower part (107) of the top edge (102), the bottom edge (104), the side edges (106), and the web bridge (112), wherein the plurality of cutouts (114) are symmetrical about a center line axis (O-O) of the back door (101) passing through the web bridge (112).
2. The trim mounting portion (100) as claimed in claim 1, wherein a plurality of trim board mounting clips (115) are provided on the trim mounting portion (100), with at least one of the trim board mounting clip (115) of the plurality of trim board mounting clips (115) is adjacent to the stepped portion (110) of the T-shaped structure (108).
3. The trim mounting portion (100) as claimed in claim 2, wherein wire harness routings (116) are provided adjacent to the stepped portion (110) of the T-shaped structure (108), such that the plurality trim board mounting clips (115) and the wire harness routings (116) define a step (118) therebetween.
4. The trim mounting portion (100) as claimed in claim 3, wherein the step (118) defined with the wire harness routings (116) is configured to receive wiring harness through a wiring harness mounting (117) provided on the web bridge (112).
5. The trim mounting portion (100) as claimed in claim 1, wherein a plurality of hole spaces (122) are provided adjacent to the plurality of side edges (106).
6. The trim mounting portion (100) as claimed in claim 1, wherein a plurality of flat lands (124) are provided adjacent to bottom edge (104).
7. The trim mounting portion (100) as claimed in claim 1, wherein an underside of the web bridge (112) of the T-shaped structure (108) proximal to the top edge (102) includes no flange at position (200).
8. The trim mounting portion (100) as claimed in claim 7, wherein the web bridge (112) includes a bead portion (202).