Description:FIELD OF THE INVENTION

The present disclosure relates generally to a door panel assembly, and particularly, the present invention relates to a top mounting panel for the door panel assembly.

BACKGROUND

Door panels are known for use in applications such as cupboards, entry/exit gates, furniture, etc. One of the types of door panels is sliding door panels, which have long been a staple in architectural and interior design, providing an elegant and space-saving solution for room dividers, closets, and various entryways. Conventional sliding door assemblies require door panels to be precisely fit into guide rails, a process that is inherently limited by the unchangeable width of these guide rails. Consequently, the door panels must conform to the standardized width of the guide rail to be accommodated correctly within the sliding door assemblies.

The conventional approach to installation of the door panels in the sliding door assemblies poses several limitations. First and foremost, the conventional approach necessitates the production of the door panels with specific widths matching those of the guide rails, which results in a lack of versatility. As a result, the door panels of different thicknesses cannot be seamlessly integrated into the guide rails without custom-made design. Furthermore, such limitation has a direct impact on the design possibilities, due to the limitation of the choice of materials and the overall design flexibility. Addressing such limitations would not only expand design possibilities but also simplify the installation processes of the door panels in the sliding door assemblies, thereby making the sliding doors a more adaptable option for residential and commercial applications.

Furthermore, the issue of gaps between door panels in conventional sliding door assemblies has been a persistent problem. The gaps allow the ingress of dust, pests, liquids, and other undesirable elements therein, and also into the enclosed spaces, compromising cleanliness. Therefore, the threats posed due to such gaps not only affect the overall functionality of the door, but also necessitate frequent maintenance and cleaning efforts.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention nor intended for determining the scope of the invention.

The present disclosure relates to a top mounting panel for mounting a door panel in a door panel assembly. The top mounting panel includes a mounting plate adapted to be slidably coupled to a track. The mounting plate includes a pair of oblong slots, and a bracket. The bracket further includes a first arm coupled to a top portion of the door panel, and a second arm extending orthogonally from the first arm and over an oblong slot of the pair of oblong slots. The second arm includes a hole. The second arm is adapted to slide over the oblong slot along a length thereof to position the hole along the oblong slot in a plurality of positions based on a thickness of the door panel. A lock is adapted to be inserted through the hole and the oblong slot to secure the mounting plate to the bracket in a position based on the thickness of the door panel.

Additionally, the present disclosure relates to a mounting assembly including a top mounting panel for mounting a door panel in a door panel assembly. The top mounting panel includes a mounting plate adapted to be slidably coupled to a track. The mounting plate includes a pair of oblong slots, and a bracket. The bracket further includes a first arm coupled to a top portion of the door panel, and a second arm extending orthogonally from the first arm and over an oblong slot of the pair of the oblong slots. The second arm includes a hole. The second arm is adapted to slide over the oblong slot along a length thereof to position the hole along the oblong slot in a plurality of positions based on the thickness of the door panel. A lock is adapted to be inserted through the hole and the oblong slot to secure the mounting plate to the bracket in a position based on the thickness of the door panel. The mounting assembly further includes a bottom mounting panel mounted on a bottom portion of the door panel. The bottom mounting panel is adapted to adjust the door panel along a bottom guide rail of the sliding door assembly based on the thickness of the door panel.

The present disclosure further relates to a door panel assembly including a door panel having a top portion and a bottom portion. The door panel assembly further includes a mounting assembly having a top mounting panel coupled to the top portion. The top mounting panel is adapted to slidably dispose the door panel in a top guide rail of the door panel assembly. The top mounting panel includes a mounting plate adapted to be slidably coupled to a track. The mounting plate includes a pair of oblong slots, and a bracket. The bracket further includes a first arm coupled to a top portion of the door panel, and a second arm extending orthogonally from the first arm and over an oblong slot of the pair of oblong slots. The second arm includes a hole. The second arm is adapted to slide over the oblong slot along a length thereof to position the hole along the oblong slot in a plurality of positions based on the thickness of the door panel. A lock is adapted to be inserted through the hole and the oblong slot to secure the mounting plate to the bracket in a position based on the thickness of the door panel. The mounting assembly further includes a bottom mounting panel coupled to the bottom portion. The bottom mounting panel is adapted to adjust the door panel along a bottom guide rail of the sliding door assembly based on the thickness of the door panel.

The mounting assembly of the present disclosure allows for the accommodation of door panels with different thicknesses. The mounting assembly therefore helps in opening up possibilities for enabling architects and interior designers to select from a broader range of door panels and create custom solutions to suit diverse requirements with respect to the guide rails. Unlike conventional systems, the mounting assembly disclosed herein simplifies the process of retrofitting the sliding doors into any existing furniture or openings. The ability to adapt the door panel thickness to the specific requirements of the space reduces the need for costly structural modifications thereof.

To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

Figure 1 illustrates a side view of a door panel assembly having a mounting assembly, according to an embodiment of the present disclosure;
Figure 2 illustrates an upper part of the door panel assembly showing a detailed view of the top mounting assembly for a first door panel and a second door panel in the door panel assembly, according to an embodiment of the present disclosure;
Figure 3 illustrates a perspective view of a top mounting panel for a second door panel of the door panel assembly, according to an embodiment of the present disclosure;
Figure 4 illustrates a perspective view of a top mounting panel for a first door panel of the door panel assembly, according to an embodiment of the present disclosure;
Figure 5A illustrates adjustment of the top mounting assembly with respect to a thickness of the second door panel, according to an embodiment of the present disclosure;
Figure 5B illustrates the adjustment of the top mounting assembly with respect to the thickness of the second door panel, according to an embodiment of the present disclosure; and
Figure 6 illustrates a dust strip disposed between the first door panel and the second door panel, according to an embodiment of the present disclosure.

Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. Furthermore, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skilled in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.

For example, the term “some” as used herein may be understood as “none” or “one” or “more than one” or “all.” Therefore, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would fall under the definition of “some.” It should be appreciated by a person skilled in the art that the terminology and structure employed herein is for describing, teaching, and illuminating some embodiments and their specific features and elements and therefore, should not be construed to limit, restrict, or reduce the spirit and scope of the present disclosure in any way.

For example, any terms used herein such as, “includes,” “comprises,” “has,” “consists,” and similar grammatical variants do not specify an exact limitation or restriction, and certainly do not exclude the possible addition of one or more features or elements, unless otherwise stated. Further, such terms must not be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated, for example, by using the limiting language including, but not limited to, “must comprise” or “needs to include.”

Whether or not a certain feature or element was limited to being used only once, it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do not preclude there being none of that feature or element, unless otherwise specified by limiting language including, but not limited to, “there needs to be one or more…” or “one or more elements is required.”

Unless otherwise defined, all terms and especially any technical and/or scientific terms, used herein may be taken to have the same meaning as commonly understood by a person ordinarily skilled in the art.

Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and/or elements of the present disclosure. Some embodiments have been described for the purpose of explaining one or more of the potential ways in which the specific features and/or elements of the proposed disclosure fulfil the requirements of uniqueness, utility, and non-obviousness.

Use of the phrases and/or terms including, but not limited to, “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or other variants thereof do not necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and/or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and/or elements may be described herein in the context of only a single embodiment, or in the context of more than one embodiment, or in the context of all embodiments, the features and/or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and/or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

Any particular and all details set forth herein are used in the context of some embodiments and therefore should not necessarily be taken as limiting factors to the proposed disclosure.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

The present disclosure relates to a door panel assembly, which includes top and bottom mounting panels for securely mounting door panels within a door panel assembly. The mounting panels of the door panel assembly disclosed herein ensures not only the structural integrity of the door panels but also a fine alignment thereof withing the door panel assembly based on a thickness of the door panels. Both the top and bottom mounting panels offer a holistic solution for a seamless operation of the door panel assembly.

Figure 1 illustrates a side view of a door panel assembly 100 mounted on a frame 500 including a first door panel 200-1, a second door panel 200-2, and a mounting assembly 600 including a top mounting panel 400, and a bottom mounting panel 300. The door panel assembly 100 may include a frame 500 with a top guide rail 104, and a bottom guide rail 106. The top guide rail 104 may be positioned on an inner side of a top edge 102-1 of the frame 500, and the bottom guide rail 106 may be positioned on an inner side of a bottom edge 102-2 of the frame 500. The bottom edge 102-2 may be parallel to the top edge 102-1, thereby making the guide rails 104, 106 parallel to each other, ensuring that the door panels 200-1, 200-2 are securely mounted between the guide rails 104, 106.

The first door panel 200-1 and the second door panel 200-2 may include a top portion 200-1A, 200-2A and a bottom portion 200-1B, 200-2B. The top mounting panel 400 may be adapted to be coupled to the top portion 200-1A, 200-2A of the door panels 200-1, 200-2, along with the bottom mounting panel 300 adapted to be coupled to the bottom portion 200-1B, 200-2B.

The top mounting panel 400 may be attached to the top portion 200-1A, 200-2A of the door panels 200-1 and 200-2 respectively, allowing for precise adjustments of the door panels 200-1, 200-2 along the top guide rail 104. The bottom mounting panel 300 may be attached to the bottom portion 200-1B, 200-2B of the door panel assembly 100, allowing for precise adjustments of the door panels 200-1, 200-2 along the bottom guide rail 106.

In one example, the first door panel 200-1 may be a front door of the door panel assembly 100 and the second door panel 200-2 may be a rear door of the door panel assembly 100. It is to be understood that the front and rear notations are based on the arrangement of the door panels on the frame, and such notation may be interchanged based on the arrangement. For the purpose of ongoing explanation of the present disclosure, the first door panel 200-1 will be considered as the front door of the door panel assembly 100, and the second door panel 200-2 will be considered as the rear door of the door panel assembly 100.

In one embodiment, the top mounting panel 400 may be adapted to slidably couple the first door panel 200-1 and/or the second door panel 200-2 to the top guide rail 104 of the door panel assembly 100. Similarly, the bottom mounting panel 300 may be adapted to slidably dispose the first door panel 200-1 and/or the second door panel 200-2 in the bottom guide rail 106 of the door panel assembly 100 based on the thickness of the door panel(s) 200-1, 200-2 in the bottom guide rail 106. Therefore, each of the mounting panels 300, 400 may be adapted to guide and secure the first door panel 200-1 and/or the second door panel 200-2 within the door panel assembly 100.

According to the present disclosure, the mounting panels 300, 400 of the door panel assembly 100 are adapted to adjust the door panels 200-1, 200-2 in the door panel assembly 100 based on the thicknesses of the door panels 200-1, 200-2, the mounting panels 300, 400 helps in providing enhanced adjustability, ease of installation, and stability to the door panels 200-1, 200-2 in the guide rails 104, 106 of the door panel assembly 100. The door panel assembly 100 may therefore enable smooth and adjustable sliding of the door panels 200-1, 200-2 within the guide rails 104, 106.

In one embodiment, additional door panels (not shown) may be added, each featuring a designated mounting assembly 600 including a top and a bottom mounting panel. For instance, the additional door panel may be slidably disposed between an additional top guide rail (not shown) and an additional bottom guide rail (not shown). The additional top guide rail and the additional bottom guide rail may be adjacent to the top guide rail 104 and the bottom guide rail 106 respectively. Further, the additional door panel may include a mounting assembly 600 having the top mounting panel coupled to a top portion of the additional door panel. The bottom mounting panel may be coupled to a bottom portion of the additional door panel.

The construction and functioning of the top mounting panel 400 of the door panel assembly 100 have also been depicted in Figures 2-4. Specifically, Figure 2 illustrates an upper part of the door panel assembly 100 showing a detailed view of the top mounting panel 400 for the first door panel 200-1 and the second door panel 200-2 in the door panel assembly 100. In one embodiment, the top mounting panel 400 may include a top mounting panel 400A for the first door panel 200-1, and a top mounting panel 400B for the second door panel 200-2. Specifically, Figure 3 illustrates a perspective view of the top mounting panel 400B for the second door panel 200-2, and Figure 4 illustrates a perspective view of a top mounting panel 400A for the first door panel 200-1.

Referring to Figures 2 and 4, the top mounting panel 400A may be adapted to install the first door panel 200-1 into the top guide rail 104. The top mounting panel 400A may include a mounting plate 402. The mounting plate may have orthogonal planes 402-1, 402-2, 402-3. The mounting plate 402 may be securely attachable to the top guide rail 104 via the planes 402-3. The plane 402-1 of the mounting plate 402 may be connected to the top portion 200-1A of the door panel 200-1. The plane 402-2 may extend orthogonally from the plane 402-1 over an edge 204 of the door panel 200-2.

Referring now to Figures 2 and 3, the top mounting panel 400B may include a mounting plate 402 and a bracket 412. The mounting plate may be securely attachable to the top guide rail 104. The mounting plate may have orthogonal planes 402-2, 402-3. The plane 402-2 may include a pair of oblong slots 418 thereon. The bracket 412 may include a first arm 412-1 and a second arm 412-2. The first arm 412-1 may be connected to the top portion 200-2A of the door panel. The second arm may extend orthogonally from the first arm 412-1 and over one of the oblong slots 418. The second arm 412-2 may include a hole 414 pivotal to the adjustability of the bracket 412.

Referring collectively to Figures 3 and 4, each of the top mounting panels 400A, 400B may include a roller 408 to enhance the sliding function of the door panels 200-1, 200-2 within the assembly 500. The roller 408 may be incorporated onto a top surface of the plane 402-2 of the mounting plate 402. The roller 408 may be adapted to facilitate a smooth movement of the door panels 200-1, 200-2 along the top guide rail 104 of the track, ensuring an effortless user experience. The roller may further help in the adjustment of the height of the top mounting panels 400A, 400B corresponding to a length of the door panels 200-1, 200-2.

Adjustment of the second door panel 200-2 aided by the top mounting panel 400B shall now be explained in detail with reference to Figures 5A and 5B, in conjunction with Figure 3. Specifically, Figures 5A and 5B illustrate the adjustment of the top mounting panel 400 with respect to the thickness of the second door panel 200-2. To facilitate the fine-tuning of the hole's 414 position along the oblong slot 418, the second arm 412-2 of the bracket 412 may be adapted to slide along a length L of the oblong slot 418, enabling precise positioning of the hole 414 along the oblong slot 418 in a plurality of positions based on the thickness of the door panel. For fine-tuning the position of the hole 414 along the oblong slot 418, a top surface 404 of the second arm 412-2 may include a plurality of graduations 406, acting as reference marks for linear displacement of the hole 414 along the oblong slot 418. Additionally, the mounting plate 402 may include reference markings 420 on the plane 402-2 thereof, such that the reference markings 420 may align with the corresponding graduations 406 on the second arm 412-2 of the bracket 412, providing visual cues to indicate the exact position of the hole 414 along the oblong slot 418.

In one embodiment, the top mounting panel 400B may include a lock 416. Once a desired position of the hole 414 is achieved along the oblong slot 418, the lock 416 may secure the mounting plate 402 to the bracket 412, ensuring stability of the bracket 412, thereby stabilizing the door panel in the top guide rail 104 based on the thickness thereof. In one example, the lock 416 may include, but is not limited to, a screw running through the hole 414, the oblong slot 418, and then through the top edge 204 of the door panel.

It is to be understood that the top mounting panels 400A, 400B of the present disclosure allow for the accommodation of the door panels 200-1, 200-2 with varying thicknesses in the door panel assembly 100 which may include guide rails 104, 106 of unalterable widths. The top mounting panel 400 therefore helps in opening up possibilities for enabling architects and interior designers to select from a broader range of the door panels 200-1, 200-2 and create custom solutions to suit diverse requirements with respect to the guide rails 104, 106. Unlike conventional systems, the top mounting panels 400A, 400B simplify the process of retrofitting sliding door panels, for instance, door panels 200-1, 200-2 of the present disclosure, into any existing furniture or openings. The ability to adapt to different thicknesses of the door panels 200-1, 200-2 in the door panel assembly 100 reduces the need for costly structural modifications in the door panel assembly 100, and the door panels 200-1, 200-2.

In one embodiment, even after accommodating the door panels 200-1, 200-2 based on the thickness thereof, there may still be a need to seal any gaps D (shown in Figure 2) between the door panels 200-1, 200-2 for cleanliness purposes. To seal the same, the door panel assembly 100 may include a dust strip 426 disposed between the first door panel 200-1, the second door panel 200-2, and/or the additional door panels, as depicted in Figure 6. Specifically, Figure 6 illustrates a dust strip 426 disposed between the first door panel 200-1 and the second door panel 200-2. The dust strip 426 may be adapted to prevent the ingress of impurities and pests between adjacent door panels 200-1, 200-2. The top guide rail 104 in the door panel assembly 100, is adapted to provide sliding of the door panels 200-1, 200-2 therein. By effectively sealing the gaps D between the door panels 200-1, 200-2, the door panel assembly 100 eliminates the entry points for dust, pests, liquids, and other unwanted elements. Such an enhancement not only improves the cleanliness, but also enhances the overall functionality and longevity of the door panel assembly 100.

In addition, reduced gaps D between the door panels 200-1, 200-2 helps in easier maintenance and cleaning of the door panel assembly 100. With fewer areas for dirt and debris to accumulate, the door panel assembly 100 is more user-friendly and requires less frequent upkeep, saving both time and resources.

While specific language has been used to describe the present disclosure, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.
, Claims:1. A top mounting panel (400B) for mounting a door panel (200-2) in a door panel assembly (100), comprising:
a mounting plate (402) adapted to be slidably coupled to a track, the mounting plate (402) comprising a pair of oblong slots (418); and
a bracket (412) comprising:
a first arm (412-1) coupled to a top portion (200-1A, 200-2A) of the door panel, and
a second arm (412-2) extending orthogonally from the first arm (412-1) and over an oblong slot of the pair of oblong slots (418), the second arm (412-2) having a hole (414), wherein the second arm (412-2) is adapted to slide over the oblong slot (418) along a length (L) thereof, to position the hole (414) along the oblong slot (418) in a plurality of positions based on a thickness of the door panel (200-2); and
a lock (416) adapted to be inserted through the hole (414) and the oblong slot (418) to secure the mounting plate (402) to the bracket (412) in a position based on the thickness of the door panel (200-2).

2. The top mounting panel (400B) as claimed in claim 1, wherein a top surface (404) of the second arm (412-2) comprises a plurality of graduations (406) adapted to indicate a linear displacement of the hole (414) along the oblong slot (418).

3. The top mounting panel (400B) as claimed in claim 2, comprising a pair of reference markings (420) on the mounting plate (402) along a/the edges of the second arm (412-2) of the bracket (412), a graduation (406) from each of the plurality of graduations (406) is adapted to align with the pair of reference marks (420) to indicate a position of the hole (414) along the oblong slot (418).

4. The top mounting panel (400B) as claimed in claim 1, comprising a roller (408) disposed on a top surface of the mounting plate (402), the roller (408) adapted to slidably mount the door panel (200-1, 200-2) in a top guide rail (104) of the door panel assembly (100).

5. A mounting assembly (600) comprising:
a top mounting panel (400B) for mounting a door panel (200-2) in a door panel assembly (100), the top mounting panel (400B) comprising:
a mounting plate (402) adapted to be slidably coupled to a track, the mounting plate (402) comprising a pair of oblong slots (418); and
a bracket (412) comprising:
a first arm (412-1) coupled to a top portion (200-2A) of the door panel (200-2), and
a second arm (412-2) extending orthogonally from the first arm (412-1) and over an oblong slot (418) of the pair of oblong slots (418), the second arm (412-2) having a hole (414), wherein the second arm (412-2) is adapted to slide over the oblong slot (418) along a length (L) thereof to position the hole (414) along the oblong slot (418) in a plurality of positions based on a thickness of the door panel (200-2); and
a lock (416) adapted to be inserted through the hole (414) and the oblong slot (418) to secure the mounting plate (402) to the bracket (412) in a position based on the thickness of the door panel (200-2); and
a bottom mounting panel (300) mounted on a bottom portion (200-1B, 200-2B) of the door panel (200-1, 200-2), wherein the bottom mounting panel (300) is adapted to adjust the door panel (200-1, 200-2) along a bottom guide rail (106) of the sliding door assembly (100) based on the thickness of the door panel (200-1, 200-2).

6. A door panel assembly (100) comprising:
a door panel (200-1, 200-2) having a top portion (200-1A, 200-2A) and a bottom portion (200-1B, 200-2B); and
a mounting assembly (600) comprising:
a top mounting panel (400B) for mounting a door panel (200-2) in the door panel assembly (100), the top mounting panel (400B) comprising:
a mounting plate (402) adapted to be slidably coupled to a track, the mounting plate (402) comprising a pair of oblong slots (418); and
a bracket (412) comprising:
a first arm (412-1) coupled to the top portion (200-2A) of the door panel (200-2), and
a second arm (412-2) extending orthogonally from the first arm (412-1) and over an oblong slot of the pair of oblong slots (418), the second arm (412-2) having a hole (414), wherein the second arm (412-2) is adapted to slide over the oblong slot (418) along a length (L) thereof to position the hole (414) along the oblong slot (418) in a plurality of positions based on a thickness of the door panel (200-2); and
a lock (416) adapted to be inserted through the hole (414) and the oblong slot (418) to secure the mounting plate (402) to the bracket (412) in a position based on the thickness of the door panel (200-2); and
a bottom mounting panel (300) mounted on the bottom portion (200-1B, 200-2B) of the door panel (200-1, 200-2), wherein the bottom mounting panel (200-1B, 200-2B) is adapted to adjust the door panel (200-1, 200-2) along a bottom guide rail (106) of the door panel assembly (100) based on the thickness of the door panel (200-1, 200-2).

7. The door panel assembly (100) as claimed in claim 6, comprising a frame (500) having the top guide rail (104) disposed on an inner side of a top edge (102-1) of the frame (500), and the bottom guide rail (106) disposed on an inner side of a bottom edge (102-2) of the frame (500), wherein the bottom edge is parallel to the top edge.

8. The door panel assembly (100) as claimed in claim 7, comprising an additional door panel slidably disposed between an additional top guide rail and an additional bottom guide rail, wherein the additional top guide rail and the additional bottom guide rail are adjacent to the top guide rail (104) and the bottom guide rail (106) respectively.

9. The door panel assembly (100) as claimed in claim 8, wherein the additional door panel comprises a mounting assembly (600) comprising: the top mounting panel (400A, 400B) coupled to a top portion of the additional door panel, the bottom mounting panel (300) coupled to a bottom portion of the additional door panel.

10. The door panel assembly (100) as claimed in claim 8, comprising a dust strip (426) disposed between the door panel (200-1, 200-2) and the additional door panel, and adapted to prevent ingress of impurities and pests between the door panel (200-1, 200-2) and the additional door panel.