Description:FIELD
The present disclosure relates to relates to a side sill reinforcement structure for a vehicle to improve side impact collision.
BACKGROUND
The background information herein below relates to the present disclosure but is not necessarily prior art.
Generally, vehicles and shipping containers are provided with side sills on left and right sides. These side sills extend in a longitudinal direction to form side bodies of the vehicle or the container framework.
In case of the vehicles, front pillars and center pillars are allowed to raise from the respective side sills, so that a roof panel can be mounted on the respective pillars to form a framework for a passenger compartment. Thus, the side sills constitute a member which forms a base for the framework of the passenger compartment and thus, determines the stiffness of the vehicle body.
Typically, when the vehicle undergoes a side impact or side collision, the side sill absorbs the maximum amount of impact. Conventionally, the side sills are provided with a reinforcement which is made of aluminum extrusion. The aluminum reinforcement members are generally mounted within an enclosed space of the side sill by means of a plurality of mounting brackets. These mounting brackets are snapped into an intermediate space between the reinforcement member and the side sill. However, when the vehicle experiences the side impact, since the conventional reinforcement member is fitted intermittently by means of the brackets, therefore there is non-uniform distribution of impact along the side sill and thus the impact is transmitted to the inner part of framework or to the passenger compartment.
Further, the conventional reinforcement member is made of aluminum, therefore it makes the reinforcement costly.
Thus, there is felt a need for a reinforcement structure for a side sill that alleviates the aforementioned drawbacks.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as follows:
An object of the present invention is to provide a reinforcement structure for a side sill.
Another object of the present invention is to provide a side sill reinforcement structure for a vehicle.
Yet another object of the present invention is to provide a side sill reinforcement structure for a shipping container.
Still another object of the present invention is to provide a side sill reinforcement structure which facilitates uniform distribution of impact energy.
Yet another object of the present invention is to provide a side sill reinforcement structure which improves rigidity of the side sill against side collision or side impact.
Still another object of the present invention is to provide a side sill reinforcement structure which prevents a battery pack from being damaged at the side collision in a vehicle.
Yet another object of the present invention is to provide a side sill reinforcement structure which improves compressive strength of the reinforcement member.
Still another object of the present invention is to provide a side sill reinforcement structure which is rigidly mountable to the side sill.
Yet another object of the present invention is to provide a side sill reinforcement structure which is economical.
SUMMARY
The present disclosure envisages a reinforcement structure for a side sill. The reinforcement structure comprises an inner member and an outer member, an enclosed space defined between the inner member and the outer member and a set of reinforcement members and at least one partitioning element. The set of reinforcement members is configured to be housed inside the enclosed space and operatively mounted to the side sill. The at least one partitioning element is configured to be housed inside the enclosed space between the set of reinforcement members and operatively mounted to the side sill. The set of reinforcement members and the at least one partitioning element extends at least partially along the length of the enclosed space to form the reinforcement structure.
The set of reinforcement members includes a first reinforcement member attached to the inner member and a second reinforcement member attached to the partitioning element. The first and second reinforcement members extend at least partially along the length of the enclosed space.
In an embodiment, the first reinforcement member and the second reinforcement member are selected from a group of shape consisting of a C-shape, a U-shape or a combination thereof.
In an embodiment, the partitioning element is configured with a flat portion extending along the length of the enclosed space. The partitioning element is selected from a group of sheet material consisting of mild steel, alloy steel. The thickness of the partitioning element varies in the range of 0.6mm to 3.0mm depending on energy absorption requirement, vehicle weight and configuration.
In an embodiment, the first reinforcement member and the second reinforcement member are selected from a group of sheet material consisting of high strength steel, ultra-high strength steel, and advanced high strength steel. The thickness of the first reinforcement member and the second reinforcement member varies in the range of 0.6mm-3.0mm depending on energy absorption requirement, vehicle weight and configuration.
Further, the first reinforcement member and the second reinforcement member are configured with alternately a plurality of flat portions and bead portions at a predetermined interval and the partitioning element is configured with a curvature profile extends along the length of the enclosed space. The first reinforcement member is concavely joined to the operative surface of the inner member such that first web portion of the first reinforcement member is facing the curvature profile of the partitioning element.
In an embodiment, a first predefined intermediate space is provided at the flat portion between the first web portion and the curvature profile of the partitioning element in the range of 4mm-6mm.
In an embodiment, a second predefined intermediate space is provided at the bead portion between the first web portion and the curvature profile of the partitioning element in the range of 6.5mm-8.5mm.
Further, the second reinforcement member is concavely joined to the operative surface of the partitioning element such that second web portion of the second reinforcement member is facing an inner operative surface of the outer member.
In an embodiment, the first reinforcement member, the second reinforcement member, the inner member, the outer member and the partitioning element are joined operatively by means of welding or brazing.
Further, the present disclosure also envisages a side sill reinforcement structure for a vehicle. The side sill reinforcement structure comprises the inner member and the outer member defined for the side sill and the outer member is disposed operatively oppositely to the inner member. The enclosed space is defined by joining an operative portion of the outer member to an operative portion of the inner member and extends along the length of the side sill of the vehicle. The first reinforcement member, the second reinforcement member and partitioning element are housed within the enclosed space. The first reinforcement member is configured to be attached to an operative surface of the inner member and is extending longitudinally along the length of the enclosed space. The partitioning element extends along the length of the enclosed space and is configured to be operatively joined to the enclosed space. The second reinforcement member extends parallelly to the first reinforcement member. The second reinforcement member is configured to be attached to an operative surface of the partitioning element.
In an embodiment, a first predefined intermediate space is provided at the flat portion between the first web portion and the curvature profile of the partitioning member in the range of 4mm-6mm. Also, a second predefined intermediate space is provided at the bead portion between the first web portion and the curvature profile of the partitioning member in the range of 6.5mm-8.5mm.
In an embodiment, the first reinforcement member and the second reinforcement member with the partitioning element forms a punch-die configuration.
In an embodiment, the thickness of the first reinforcement member and the second reinforcement member varies in the range of 0.6mm-3.0mm. The thickness of the partitioning element varies in the range of 0.6 mm to 3.0mm depending on energy absorption requirement, vehicle weight and configuration.
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWING
A reinforcement structure for side sill of the present disclosure will now be described with the help of the accompanying drawing, in which:
Figure 1a illustrate a perspective isometric view of a framework of passenger compartment of a vehicle with side sills.
Figure 1b illustrate a perspective isometric view of mounting of a conventional reinforcement member with a plurality of mounting brackets on a side sill.
Figure 2 illustrate a perspective isometric view of a side sill reinforcement structure in accordance with an embodiment of the present disclosure.
Figure 3a and Figure 3b illustrate a perspective isometric cross-sectional view of a conventional reinforcement structure and a reinforcement structure in accordance with an embodiment of the present disclosure.
Figure 4 illustrate a perspective sectional view of a conventional reinforcement structure housed within the enclosed space of side sill.
Figure 5a and Figure 5b illustrate a perspective sectional view of the present reinforcement structure at a flat portion and at a bead portion of the reinforcement member in accordance with an embodiment of the present disclosure.
Figure 6 illustrate a perspective isometric view of the present reinforcement structure housed within the sill in accordance with an embodiment of the present disclosure.
Figure 7 illustrate a perspective isometric exploded view of a first reinforcement member, a second reinforcement member, and a partitioning element in accordance with an embodiment of the present disclosure.
Figure 8a and Figure 8b illustrate a perspective cross-sectional exploded view of a first reinforcement member, a second reinforcement member, and a partitioning element in accordance with an embodiment of the present disclosure.
Figure 9 illustrate a perspective isometric view of the present reinforcement structure in accordance with an embodiment of the present disclosure.
Figure 10 illustrate a perspective view of simulation testing of the present reinforcement structure in accordance with an embodiment of the present disclosure.
Figure 11a illustrate a energy absorption curve for the conventional reinforcement structure and figure 11b illustrate energy absorption curve for the present reinforcement structure.
LIST OF REFERENCE NUMERALS USED IN DETAILED DESCRIPTION AND DRAWING
100' conventional reinforcement structure
100 reinforcement structure for a side sill of the present disclosure
25' conventional mounting brackets
200 vehicle
90a inner member of a side sill
90b outer member of a side sill
80 enclosed space
70 first reinforcement member or first C-shaped reinforcement member
70a first web portion
70b first flange portion
60 second reinforcement member or second C-shaped reinforcement member
60a second web portion
60b second flange portion
F flat portion
B bead portion
40 partitioning element
40a curvature profile
J region of joining
30 outer cover for side sill
20 point of welding
15 first intermediate space
10 second intermediate space
DETAILED DESCRIPTION
Embodiments, of the present disclosure, will now be described with reference to the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the present disclosure to the person skilled in the art. Numerous details are set forth, relating to specific components, and methods, to provide a complete understanding of embodiments of the present disclosure. It will be apparent to the person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known grader structures, and well-known techniques are not described in detail.
The terminology used, in the present disclosure, is only for the purpose of explaining a particular embodiment and such terminology shall not be considered to limit the scope of the present disclosure. As used in the present disclosure, the forms “a”, “an”, and “the” may be intended to include the plural forms as well, unless the context clearly suggests otherwise. The terms “comprises”, “comprising”, “including”, and “having”, are open ended transitional phrases and therefore specify the presence of stated features, integers, steps, operations, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The particular order of steps disclosed in the method and process of the present disclosure is not to be construed as necessarily requiring their performance as described or illustrated. It is also to be understood that additional or alternative steps may be employed.
When an element is referred to as being “mounted on”, “engaged to”, “connected to”, or “coupled to” another element, it may be directly on, engaged, connected or coupled to the other element. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed elements.
The terms first, second, third, etc., should not be construed to limit the scope of the present disclosure as the aforementioned terms may be only used to distinguish one element, component, region or section from another component, region, or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.
Terms such as “inner”, “outer”, “beneath”, “below”, “lower”, “above”, “upper”, and the like, may be used in the present disclosure to describe relationships between different elements as depicted from the figures.
Typically, when the vehicle (200) experiences a side impact or collides, the side sill takes up the maximum amount of impact. Figure 1a illustrates a perspective isometric view of a framework of passenger compartment of a vehicle with side sills. Conventionally, the side sills are provided with a reinforcement (100’) which is made of aluminum extrusion. The aluminum reinforcement members (100’) are generally mounted within enclosed space (80) of the side sill by means of a plurality of mounting brackets (25’). These mounting brackets (25’) are snap fitted to an intermediate space between an operative upper edge of the reinforcement member (100’) and the side sill. Figure 1b illustrates a perspective isometric view of mounting of a conventional reinforcement member with a plurality of mounting brackets on a side sill. However, when the vehicle experiences the side impact, since the conventional reinforcement member (100’) is intermittently mounted by means of the brackets (25’), this results in a non-uniform distribution of impact along the side sill and results in the transmission of impact to the inner part of framework or the passenger compartment. In addition, the conventional reinforcement member (100’) is made of aluminum, therefore it makes the reinforcement costly.
In order to address the aforementioned problems, the present disclosure envisages a side sill reinforcement structure (hereinafter referred to as reinforcement structure 100). Figure 2 illustrates a perspective isometric view of a side sill reinforcement structure in accordance with an embodiment of the present disclosure. In comparison with the conventional reinforcement structure, the side sill reinforcement structure of the present disclosure forms a punch-die configuration with a blank therebetween. Figure 3a and Figure 3b illustrate a perspective isometric cross-sectional view of a conventional reinforcement structure and a reinforcement structure in accordance with an embodiment of the present disclosure. Figure 4 illustrates a perspective sectional view of a conventional reinforcement structure housed within the enclosed space of the side sill.
In accordance with the embodiment of the present disclosure, the side sill reinforcement structure (100) is defined by an inner member (90a) and an outer member (90b). An operative edge of the inner member (90a) and the outer member (90b) are operatively joined together to define an enclosed space (80) therebetween. The side sill is covered by an outer cover (30), which acts as an additional support for the side sill. The enclosed space (80) of the side sill comprises a first reinforcement member (70) and a second reinforcement member (60) and a partitioning element (40) therebetween.
In an embodiment, the first reinforcement member (70) and the second reinforcement member (60) are selected from a group of sheet material consisting of high strength steel.
In an embodiment, the partitioning element (40) is selected from a group of sheet material consisting of mild steel.
In an embodiment the first reinforcement member (70) and the second reinforcement member (60) are selected from a group of shape consisting of a C-shape, a U-shape or a combination thereof.
In a preferred embodiment, the first reinforcement member (70) and the second reinforcement member (60) are a C-shaped reinforcement member.
Further, the first reinforcement member (70) and the second reinforcement member (60) extends along the length of the enclosed space (80). The first reinforcement member (70) and the second reinforcement member (60) are configured with alternatively a flat portion (F) and a bead portion (B) thereon at a predetermined interval. Advantageously, the alternate bead portions (B) provide rigidity and stiffness to the reinforcement structure (100). Figure 5a and Figure 5b illustrate a perspective sectional view of the present reinforcement structure at a flat portion and at a bead portion of the reinforcement member. Figure 6 illustrates a perspective isometric view of the present reinforcement structure housed within the side sill.
In an embodiment, the thickness of the first reinforcement member (70) and the second reinforcement member (60) varies in the range of 0.6mm-3.0mm depending on energy absorption requirement, vehicle weight and configuration.
Further, the C-shaped first reinforcement (70) is provided with a first web portion (70a) and a pair of first flange portions (70b). The first reinforcement member (70) is operatively joined to an inner operative surface of the inner member (90a) such that the first web portion (70a) protrudes towards the operative front.
In an embodiment, the first reinforcement member (70) is joined to the inner member (90a) by means of welding or brazing or riveting.
Further, the partitioning element (40) is defined by a membrane sheet-like structure having a predetermined thickness and is configured to be attached or joined to an inner operative surface of the enclosed space (80) such that the partitioning element (40) divides the enclosed space (80) in two parts. The partitioning element (40) is joined to the inner operative surface of the enclosed space (80) by means of welding or brazing or riveting. Thus, the partitioning member (40) is operatively located above the first web portion (70a) of the first reinforcement member (70).
In an embodiment, the partitioning element (40) is a flat surface sheet which extends longitudinally along the length of the enclosed space (80).
In an embodiment, the partitioning element (40) is a flat surface sheet with a curvature profile in central portion of the partitioning element (40), which extends longitudinally along the length of the enclosed space (80).
In an embodiment, the curvature profile is selected from a concave profile or a convex profile or a combination thereof.
In another embodiment, the partitioning element (40) is a flat surface sheet with a curvature profile (40a), which extends longitudinally along the length of the partitioning element (40). The first web portion (70a) of the first reinforcement member (70) is facing the curvature profile (40a) of the partitioning element (40).
In a preferred embodiment, the first reinforcement member (70) is concavely joined to the operative surface of the inner member (90a) such that first web portion (70a) of the first reinforcement member (70) is facing the curvature profile (40a) of the partitioning element (40).
In an embodiment, the thickness of the partitioning element (40) varies in the range of 0.6mm to 3.0mm depending on energy absorption requirement, vehicle weight and configuration.
Further, the second reinforcement member (60) is provided with a second web portion (60a) and a pair of second flange portions (60b). The second reinforcement member (60) is operatively joined to an operative surface of the partitioning element (40) such that the second web portion (60a) protrudes towards an inner operative surface of the outer member (90b). Therefore, a first part of the enclosed space (80) includes the first reinforcement member (70), and a second part of the enclosed space (80) includes the second reinforcement member (60). Thus, when the side sill experiences the side collision, the sequence of impact transmission is from the outer member (90b) towards the inner member (90a) through the second reinforcement member (60), the partitioning element (40) and the first reinforcement member (70). Figure 7 illustrate a perspective isometric exploded view of a first reinforcement member, a second reinforcement member, and a partitioning element in accordance with an embodiment of the present disclosure.
In a preferred embodiment, the second reinforcement member (60) is concavely joined to the operative surface of the partitioning element (40) such that the second web portion (60a) of the second reinforcement member (60) is facing an inner operative surface of the outer member (90b). The second reinforcement member (60) is joined to the operative surface of the partitioning element (40) by means of welding or brazing or riveting. Figure 8a and Figure 8b illustrate a perspective cross-sectional exploded view of a first reinforcement member, a second reinforcement member, and a partitioning element. Figure 9 illustrates a perspective isometric view of the present reinforcement structure in accordance with an embodiment of the present disclosure.
In an embodiment, a first predefined intermediate space (15) is provided at the flat portion (F) between the first web portion (70a) and the curvature profile (40a) of the partitioning element (40) in the range of 4mm-6mm.
In an embodiment, a second predefined intermediate space (10) is provided at the bead portion (B) between the first web portion (70a) and the curvature profile (40a) of the partitioning element (40) in the range of 6.5mm-8.5mm.
The set of reinforcement members (60, 70) and the partitioning element (40) extends at least partially along the length of the enclosed space to form the reinforcement structure (100). An operative portion of the first reinforcement member (70), the second reinforcement member (60), the inner member (90a), the outer member (90b) and the partitioning element (40) are configured to be joined together to form a region of joining (J). Advantageously, the region of joining (J) enables the reinforcement structure (100) to transmit the impact load along the different members in connection and thereby facilitate the maximum absorption of the impact energy.
In a preferred embodiment, the first reinforcement member (70), the second reinforcement member (60), the inner member (90a), the outer member (90b) and the partitioning element (40) are joined operatively by means of spot welding.
Since, the partitioning element (40) is joined within the region of joining (J) of the inner member (90a) and the outer member (90b) of the side sill, therefore the region of joining (J) provides a blank holding force (BHF) similar to the die-punch configuration to the partitioning element (40) and thus it facilitates the second reinforcement member (60) to absorb maximum amount of energy without being transmitted to the first reinforcement member (70).
EXAMPLE:
In an exemplary embodiment, the reinforcement structure (100) of the present disclosure is subjected to an impact load. Figure 10 illustrate a perspective view of simulation testing of the present reinforcement structure in accordance with an embodiment of the present disclosure. The impact load acts on the outer member (90b) of the side sill and is transmitted to the different surfaces of the side sill, as shown in Figure 10(a). Consequently, the intermediate space defined between the inner operative portion of the outer member (90b) and the second web portion (60a) decreases and the intermediate space defined between the operative portion of the partitioning element (40) and the first web portion (70a) decreases, which results in the abutting of the outer member (90b) of the side sill on the second web portion (60a) and the abutting of the partitioning element (40) on the first web portion (70a) as shown in figure 10(b). The transmitted impact load acts on the second web portion (60a) causing the second web portion (60a) and the partitioning element (440) to bend as shown in figure 10(c).
The maximum amount of impact load is absorbed by the bending of the second web portion (60a) and the second flange portion (60b) since the second reinforcement member (60) is joined to the partitioning element (40) and the partitioning element (40) is rigidly held and supported by the region of joining formed by joining the outer member (90b) and the inner member (90a) of the side sill as shown in figure 10(d). Thereby, the second reinforcement member (60) absorbs the maximum amount of impact energy without being transferred to the first reinforcement member (70) or the inner member (90a) of the side sill as shown in figure 10(e). Thus, the framework of the passenger compartment and the battery pack remain protected and safe from side collision.
In an embodiment, the reinforcement structure (100) of the present disclosure can be used for side rails of a shipping container in addition to the side sills of the vehicle.
Figure 11a illustrate a energy absorption curve for the conventional reinforcement structure and Figure 11b illustrate energy absorption curve for the present reinforcement structure. The graph shows different battery cell forces vs time history for two different configuration i.e aluminum (conventional arrangement) and sheet metal reinforcement (present invention) for regulatory side pole position. The maximum battery cell force generated within the sheet metal reinforcement is 0.28 and the maximum battery cell force generated within the conventional reinforcement structure is 0.9 .i.e. the energy generated within the sheet metal reinforcement is one third compared to that of aluminum reinforcement. Further, the time duration for impact transmission also increases with the sheet metal reinforcement of the present disclosure. The lower is the induced cell force, better is the battery safety. Hence, the sheet metal reinforcement performs superior when compared to the aluminum reinforcement.
The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to be within the scope of the present disclosure.
TECHNICAL ADVANCEMENTS AND ECONOMIC SIGNIFICANCE
The present disclosure described herein above has several technical advantages including, but not limited to, the realization of the reinforcement structure for a side sill, that:
• provides the side sill reinforcement structure for a vehicle;
• provides the side sill reinforcement structure for a shipping container;
• facilitates uniform distribution of impact;
• is economical;
• improves the rigidity of the side sill against side collision or side impact;
• prevents the battery pack from being damaged at the side collision in a vehicle;
• improves compressive strength of the reinforcement member;
• time duration for impact transmission increases; and
• is rigidly mountable to the side sill by means of the welding.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein.
The foregoing description of the specific embodiments 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.
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.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments 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 changes in the preferred embodiment as well as other embodiments of the disclosure 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.
, Claims:WE CLAIM:
1. A reinforcement structure (100) for a side sill, comprising:
• an inner member (90a) for said side sill;
• an outer member (90b) for said side sill disposed oppositely to said inner member (90a);
• an enclosed space (80) defined between said inner member (90a) and said outer member (90b); and
• a set of reinforcement members (60, 70) configured to be housed inside said enclosed space (80) and operatively mounted to said side sill; and
• at least one partitioning element (40) configured to be housed inside said enclosed space (80) between said set of reinforcement members (60, 70) and operatively mounted to said side sill;
said set of reinforcement members (60, 70) and said at least one partitioning element extends at least partially along the length of said enclosed space (80) to form said reinforcement structure (100).
2. The reinforcement structure (100) as claimed in claim 1, wherein said set of reinforcement members (60, 70) includes a first reinforcement member (70) attached and a second reinforcement member (60), said first reinforcement member (70) is configured to be attached on an operative surface of said inner member (90a) and said second reinforcement member (60) is configured to be attached on an operative surface of said partitioning element (40).
3. The reinforcement structure (100) as claimed in claim 2, wherein said first reinforcement member (70) and said second reinforcement member (60) are configured with alternately a plurality of flat portions (F) and bead portions (B) at a predetermined interval, and said partitioning element (40) is configured with a curvature profile (40a) extends along the length of said enclosed space (80).
4. The reinforcement structure (100) as claimed in claim 2, wherein said first reinforcement member (70) is concavely joined to the operative surface of said inner member (90a) such that first web portion (70a) of said first reinforcement member (70) is facing said curvature profile (40a) of said partitioning element (40), said second reinforcement member (60) is concavely joined to the operative surface of said partitioning element (40) such that second web portion (60a) of said second reinforcement member (60) is facing an inner operative surface of said outer member (90b).
5. The reinforcement structure (100) as claimed in claim 1, wherein said partitioning element (40) is configured with a flat portion extending along the length of said enclosed space (80), said partitioning element (40) is selected from a group of sheet material consisting of mild steel, alloy steel, the thickness of said partitioning element (40) varies in the range of 0.6mm to 3.0mm depending on energy absorption requirement, vehicle weight and configuration.
6. The reinforcement structure (100) as claimed in claim 3, wherein a first predefined intermediate space (15) is provided at said flat portion (F) between said first web portion (70a) and said curvature profile (40a) of said partitioning element (40), and a second predefined intermediate space (10) is provided at said bead portion (B) between said first web portion (70a) and said curvature profile (40a) of said partitioning element (40), said first predefined intermediate space is in the range of 4mm-6mm, and said second predefined intermediate space is in the range of 4mm-6mm.
7. The reinforcement structure (100) as claimed in claim 1, wherein said first reinforcement member (70) and said second reinforcement member (60) is selected from a group of sheet material consisting of high strength steel, ultra-high strength steel, and advanced high strength steel, the thickness of said first reinforcement member (70) and said second reinforcement member (60) varies in the range of 0.6mm-3.0mm depending on energy absorption requirement, vehicle weight and configuration, said first reinforcement member (70) and said second reinforcement member (60) are selected from a group of shape consisting of a C-shape, a U-shape or a combination thereof.
8. The reinforcement structure (100) as claimed in claim 1, wherein said first reinforcement member (70), said second reinforcement member (60), said inner member (90a), said outer member (90b) and said partitioning element (40) are joined operatively by means of welding or brazing.
9. A side sill reinforcement structure (100) for a vehicle (200), comprising:
• an inner member (90a) for said side sill;
• an outer member (90b) for said side sill and disposed operatively opposite to said inner member (90a);
• an enclosed space (80) defined by joining an operative portion of said outer member (90b) to an operative portion of said inner member (90a) and extends along the length of the side sill of the vehicle;
• first reinforcement member (70) housed within said enclosed space (80), configured to be attached to an operative surface of said inner member (90a) and extends longitudinally along the length of said enclosed space (80);
• a partitioning element (40) extends along the length of said enclosed space (80) and configured to be operatively mounted to said side sill; and
• second reinforcement member (60) extends parallelly to said first reinforcement member (70) and configured to be attached to an operative surface of said partitioning element (40).
10. The side sill reinforcement structure (100) as claimed in claim 9, wherein said first reinforcement member (70) and said second reinforcement member (60) are configured with alternately a plurality of flat portions (F) and bead portions (B) at a predetermined interval, said first reinforcement member (70) is configured with a first web portion (70a) and a pair of first flange portions (70b), said partitioning element (40) is defined by a membrane sheet like structure having a predetermined thickness and is configured with a curvature profile (40a) extending along the length of said partitioning element (40), said first reinforcement member (70) is concavely joined to the operative surface of said inner member (90a) such that said first web portion (70a) is facing said curvature profile (40a) of said partitioning element (40), a first predefined intermediate space (15) is provided at said flat portion (F) between said first web portion (70a) and said curvature profile (40a) of said partitioning member (40), and a second predefined intermediate space (10) is provided at said bead portion (B) between said first web portion (70a) and said curvature profile (40a) of said partitioning member (40), said first predefined intermediate space is in the range of 4mm-6mm, said second predefined intermediate space is in the range of 4mm-6mm.
.
11. The side sill reinforcement structure (100) as claimed in claim 9, wherein said second reinforcement member (60) is configured with a second web portion (60a) and a pair of second flange portions (60b), said second reinforcement member (60) is concavely joined to the operative surface of said partitioning element (40) such that said second web portion (60a) is facing an operative inner surface of said outer member (90b).
12. The side sill reinforcement structure (100) as claimed in claim 9, wherein said first reinforcement member (70) and said second reinforcement member (60) with said partitioning element (40) forms a punch-die configuration, said first reinforcement member (70) and said second reinforcement member (60) are selected from a group of shape consisting of a C-shape, a U-shape or a combination thereof.
13. The side sill reinforcement structure (100) as claimed in claim 9, wherein the thickness of said first reinforcement member (70) and said second reinforcement member (60) varies in the range of 0.6mm-3.0mm, and the thickness of said partitioning element (40) varies in the range of 0.6mm to 3.0mm depending on energy absorption requirement, vehicle weight and configuration.
14. The side sill reinforcement structure (100) as claimed in claim 9, wherein said first reinforcement member (70), said second reinforcement member (60), said inner member (90a), said outer member (90b) and said partitioning element (40) are joined operatively by means of welding, brazing, riveting or by fastening means, an operative portion of said first reinforcement member (70), said second reinforcement member (60), said inner member (90a), said outer member (90b) and said partitioning element (40) are configured to be joined together to form a region of joining (J).

Dated this 08th day of June, 2023

_______________________________
MOHAN RAJKUMAR DEWAN, IN/PA – 25
of R.K.DEWAN & CO.
Authorized Agent of Applicant