FIELD OF INVENTION:
[001] The present subject matter described herein, relates to an impact energy absorber for front end of vehicle, and, in particular, to an energy absorber for front 5 bumper of the vehicle to absorb impact energy thus protecting leg of pedestrian and reducing injury to pedestrian upon impact. In more particularly, the present subject matter relates to a collapsible structure that collapse during collision to absorb impact energy and the collapsible structure is mounted in proximity of rigid components, such as towing hook in front part of the vehicle for reducing 10 pedestrian leg injury during offside/offset or frontal collision of vehicle with the pedestrian.
BACKGROUND AND PRIOR ART:
[002] Current bumper energy absorption systems are formed of plastic material to absorb impact energy during collision. Further, the bumper system has an 15 energy absorber which absorbs energy during pedestrian impact with the vehicle. Based on location of the impact, zones are defined, such as upper leg and lower leg where vehicle might hit the pedestrian. Further, the pedestrian leg injury is much more severe during impact with front towing hook of the vehicle which is usually a very stiff structure. The upper leg energy absorber is provided at the 20 upper cross member of the vehicle. Further, the lower leg energy absorber is provided at lower cross member of the vehicle.
[003] When vehicle hits the pedestrian directly from the front side at the towing hook location, the front bumper is not instrumental in reducing the impact energy which causes high intensity injury to the leg of the pedestrian. Impact of the 25 pedestrian with the towing hook may cause fracture in the bone of the lower leg at tibia 3 location.
[004] Fig. 1 illustrates conventional design of the energy absorber to absorb the impact energy and protect the pedestrian leg from injuries. The energy absorber
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104 is placed across width of front end of the vehicle behind the bumper. The energy absorber 104 is used to limit the pedestrian leg injury by absorbing the impact energy. The energy absorber 104 is mounted on front bumper beam 102 of the vehicle. When the pedestrian legform 106 hits the vehicle from front side, the energy absorber 104 absorbs the impact energy and saves the pedestrian legform 5 106 from injury. Figure 2 illustrates the mounting of energy absorber 104 across the width of the vehicle at the front side. The energy absorber 104 induces huge tooling as well as material cost. Further, the energy absorber 104 has complex design and high weight that increases the cost of the structure.
[005] Figure 3 illustrates location of offset front crash of the vehicle. Generally, 10 left hand side and right hand side has bad impact on the pedestrian leg during collision because these sides have very rigid structures, such as towing hook and joint of longitudinal member and front cross members. Therefore it is necessary to provide energy absorption structures over these rigid structures to avoid injuries on the pedestrian leg. Figure 4 illustrates the front view of the vehicle and section 15 A-A illustrates the side section where towing hook is located in the vehicle. Figure 5 illustrates the impact test with leg model or impactor. In the figure 5, front side 404 of the vehicle collides with leg model 402. The leg model 402 has upper leg and lower leg. Portion above the knee is considered as upper leg and the lower portion is considered as the lower leg. The lower leg has several points, 20 such as tibia 1, tibia 2, tibia 3, and tibia 4 where lower part of the vehicle causes injuries during impact of the pedestrian with the vehicle. At the lower front side of the vehicle a towing hook 406 at one side of the vehicle is given, the towing hook 406 causes more injury to the tibia 3 location of the lower leg during collision.
[006] Figure 5 illustrates the bending of the lower leg at the tibia 3 location 25 during collision. In the absence of absorbers as mentioned above lead to increase in the Pedestrian leg injury value beyond the permissible limit at towing hook location. Injury value at Tibia-3 section which is near the towing hook 406 exceeds the permitted limit and hence, it was required to bring down the Tibia 3 injuries. The reason for high Tibia 3 injury value is mainly due to the leg model 30
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402 interaction with the towing hook 406 directly. Towing hook 406, which possess high stiffness applies high resistive forces to Leg model 402 at Tibia 3 location resulting in high Tibia bending causing high Tibia bending moment at Tibia 3 location as shown in Figure 5.
[007] In order to improve the energy absorbing efficiency of the front bumper, 5 sometime foam based absorbers are position in between the bumper and the vehicle mounting rails. Adding of these absorbers results increase in cost increase of the bumper assembly of the vehicle. Further, the leg energy absorbers are not efficient which can protect the lower leg from the impact. Furthermore, the existing energy absorbers are expensive and complex in designing and 10 manufacturing. Therefore, there is a need in the art to provide an energy absorber that can be more simple and inexpensive, and which can be placed over the towing hook or other localized regions to absorbs the impact energy and reduce the injury to the pedestrian's lower leg.
OBJECTS OF THE INVENTION: 15
[008] The principal objective of the present invention is to provide a collapsible bracket structure that absorbs impact energy and reduces injuries to lower leg of pedestrian.
[009] Another object of the present subject matter is to provide a collapsible bracket structure that breaks during absorption of impact energy during vehicle 20 collision.
[0010] Another object of the present subject matter is to provide collapsible bracket above towing hook location to reduce impact of hard towing hook on the pedestrian leg during vehicle collision with the pedestrian.
[0011] Yet another object of the present invention is to provide an energy 25 absorbing collapsible bracket which is simple and inexpensive, and efficiently absorbs the impact energy above the towing hook or other localized regions without causing major injury to lower leg of the pedestrian.
SUMMARY OF THE INVENTION:
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[0012] The subject matter disclosed herein relates to a collapsible bracket structure that collapse during impact to absorb impact energy for reducing pedestrian leg injuries and damages during impact of the pedestrian leg with front side of the vehicle, in particularly to towing hook of the vehicle. The collapsible bracket structure is positioned in between the front cross member and front 5 bumper of the vehicle. The collapsible bracket structure is placed above towing hook to reduce the impact of the towing hook on the pedestrian leg. The collapsible bracket structure is mounted on plate of longitudinal member of the vehicle.
[0013] In another embodiment of the present subject matter, structure of the 10 collapsible bracket is illustrated. The collapsible bracket is in hollow structure made as a single integral part. The collapsible bracket structure has a mounting structure that mounts the collapsible bracket structure at front end of the vehicle by screw or clip. Further, the collapsible bracket structure has an impact absorbing portion for absorbing impact energy during frontal collision of the pedestrian with 15 the vehicle. The impact absorbing portion has a plurality of forwardly projecting crushable hollow structures that defines a single integrated hollow forwardly projecting structure. The plurality of forwardly projecting crushable hollow structures adapted to crush/deform upon impact to absorb impact energy in longitudinal direction of the vehicle. Each forwardly projecting crushable hollow 20 structure form the plurality of forwardly projecting crushable hollow structures has a front forwardly facing portion to receive the impact energy and a connecting portion that connects the forwardly projecting crushable hollow structure to another forwardly projecting crushable hollow structure at rear side. The connecting portion transfers the impact energy to the consecutive plurality of 25 forwardly projecting crushable hollow structures to absorb the impact energy completely/partially. The plurality of forwardly projecting crushable hollow structures spaced apart vertically by a distance equal to longitudinal length of the connecting portion from last forwardly projecting crushable hollow structure to first forwardly projecting crushable hollow structure. The plurality of forwardly 30 projecting crushable hollow structures deforms along direction of connecting
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portions during collision to minimize magnitude of impact of the towing hook on the pedestrian leg.
[0014] 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 5 only but not used to limit scope of the present subject matter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] 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 10 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 15 embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
[0016] Fig. 1 illustrates placement of energy absorber across width of the vehicle as known in the art;
[0017] Fig. 2 illustrates structure of the energy absorber as known in the art; 20
[0018] Fig. 3 illustrate front end of the vehicle for frontal offset/full frontal impact;
[0019] Fig. 4 illustrates cross section of the front end of the vehicle with leg model to explain impact of collision on tibia 3 location, in accordance in accordance with an embodiment of the present subject matter; 25
[0020] Fig. 5 illustrates bending of the leg model near the tibia 3 location during collision of the vehicle with the pedestrian, in accordance with an embodiment of the present subject matter;
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[0021] Fig. 6 illustrates front side part of the vehicle, in accordance with an embodiment of the present subject matter;
[0022] Fig. 7 illustrates structure of the collapsible bracket, in accordance with an embodiment of the present subject matter;
[0023] Fig. 8 illustrates front view of the collapsible bracket structure, in 5 accordance with an embodiment of the present subject matter;
[0024] Fig. 9 illustrates side view of the collapsible bracket structure of figure 7, in accordance with an embodiment of the present subject matter;
[0025] Fig. 10 and 11 illustrate breaking of the collapsible bracket structure in direction of impact, in accordance with an embodiment of the present subject 10 matter;
[0026] Fig. 12 illustrates different structure of the collapsible bracket, in accordance with an embodiment of the present subject matter; and
[0027] Fig. 13 illustrates different structure of the collapsible bracket, in accordance with an embodiment of the present subject matter. 15
[0028] 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. 20
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0029] The subject matter disclosed herein relates to a collapsible bracket structure for reducing pedestrian leg injuries and damages during impact of the pedestrian leg with front side of the vehicle, in particularly to towing hook of the vehicle. The collapsible bracket structure is positioned in between the front cross 25 member and front bumper of the vehicle. The collapsible bracket structure is placed in proximity of towing hook to reduce the impact of the towing hook on the pedestrian leg. The collapsible bracket structure is a hollow structure that has a
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plurality of forwardly projecting crushable hollow structures that extend toward the front bumper to cover the towing hook. The plurality of forwardly projecting crushable hollow structures of the collapsible bracket structure extends in forward direction from the front bumper. The plurality of forwardly projecting crushable hollow structures deform during the collision to minimize the magnitude of the 5 impact on the pedestrian leg from the towing hook. The collapsible bracket structure absorbs the impact energy and reduces the injuries caused to the lower leg.
[0030] In another embodiment of the present subject matter, structure of the collapsible bracket is illustrated. The collapsible bracket is a hollow structure as a 10 single integral part. The collapsible bracket structure has a mounting portion that mounts the collapsible bracket structure at front end of the vehicle by screw or clip. Further, the collapsible bracket structure has an impact absorbing portion for absorbing impact energy during frontal collision of the pedestrian with the vehicle. The impact absorbing portion has a plurality of forwardly projecting 15 crushable hollow structures that defines a hollow structure. The hollow structure can be of any shape, such as rectangular, triangular, polygon. The plurality of forwardly projecting crushable hollow structures adapted to crush/deform upon impact to absorb impact energy in longitudinal direction of the vehicle. Each forwardly projecting crushable hollow structure from the plurality of forwardly 20 projecting crushable hollow structures has a front forwardly facing portion to receive the impact energy and a connecting portion that connects the forwardly projecting crushable hollow structure to another forwardly projecting crushable hollow structure at rear side. The connecting portion transfers the impact energy to the consecutive plurality of forwardly projecting crushable hollow structures to 25 absorb the impact energy completely. The plurality of forwardly projecting crushable hollow structures spaced apart vertically by a distance equal to longitudinal length of the connecting portion from last forwardly projecting crushable hollow structure to first forwardly projecting crushable hollow structure. The plurality of forwardly projecting crushable hollow structures 30
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deform along direction of connecting portions during collision to minimize magnitude of impact of the towing hook on the pedestrian leg.
[0031] 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 5 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 10 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 15 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.
[0032] These and other advantages of the present subject matter would be 20 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. 25
[0033] Fig. 7 and 8 illustrate structure of collapsible bracket in accordance with an embodiment of the present subject matter. The collapsible bracket structure 800 has mounting portion 600 and an impact absorbing portion 700. The mounting portion 600 has a mounting hole 601 through which collapsible bracket 800 can be mounted on longitudinal member of the vehicle. The collapsible 30
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bracket structure 800 is positioned in between the front cross member and front bumper of the vehicle. The collapsible bracket structure 800 can be placed in proximity of towing hook to reduce the impact of the towing hook on the pedestrian leg. As shown in the figure 8 and 9, the impact absorbing portion 700 is a hollow structure that has a plurality of forwardly projecting crushable hollow 5 structures 701, 702, 703, 704, 705 that extend forwardly toward the front bumper to cover the towing hook. The plurality of forwardly projecting crushable hollow structures 701, 702, 703, 704, 705 of the collapsible bracket structure 800 extends in forward direction from the front bumper. The plurality of forwardly projecting crushable hollow structures can be in any number upto n number. As shown in the 10 figures, number of the plurality of forwardly projecting crushable hollow structures are not limited to four or five, it can be of any numbers. The number of plurality of forwardly projecting crushable hollow structures depend on the distance between the front member and the front bumper and longitudinal length of the connection portion as explained in below paragraphs. 15
[0034] The collapsible bracket structure 800 is in hollow structure made as a single integral part. The hollow structure of the collapsible bracket structure 800 can be of any shape, such as rectangular, triangular, and any polygon shape. In the present subject matter, rectangular shape is considered for explanation. The present structure should not be limited to rectangular shape. The collapsible 20 bracket structure 800 is mounted in the longitudinal member of the vehicle at front end via the mounting portion 600 either through screw or clip. Further, the collapsible bracket structure 800 has an impact absorbing portion 700 for absorbing impact energy during frontal collision of the pedestrian with the vehicle. The impact absorbing portion has a plurality of forwardly projecting 25 crushable hollow structures 701, 702, 703, 704, 705 that defines a hollow structure. The plurality of forwardly projecting crushable hollow structure 701, 702, 703, 704, 705 is hollow structures that joined with each other to form a hollow collapsible bracket structure 800. The plurality of forwardly projecting crushable hollow structures 701, 702, 703, 704, 705 adapted to crush/deform upon 30 impact to absorb impact energy in longitudinal direction of the vehicle.
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[0035] To avoid complexity of the structure, first forwardly projecting crushable hollow structure 701 is explained with second forwardly projecting crushable hollow structure 702. Each forwardly projecting crushable hollow structure 701 from the plurality of forwardly projecting crushable hollow structure 701, 702, 703, 704, 705 has a front forwardly facing portion 701ac to receive the impact 5 energy and a connecting portion 701a that connects the forwardly projecting crushable hollow structure 701 to following forwardly projecting crushable hollow structure 702 at rear side. Similarly, all the forwardly projecting crushable hollow structures are connected with the following forwardly projecting crushable hollow structure via connecting portions, such as 701a, 702a, 703a, 704a, 705a. 10 The connecting portions 701a, 702a, 703a, 704a, 705a connect the plurality of forwardly projecting hollow portions from middle. If number of forwardly projecting crushable hollow structures is more, number of the connecting portions is also more. The number of connecting portions directly relates with the number of forwardly projecting crushable hollow structure. The impact absorbing portion 15 700 is a combination of a plurality forwardly projecting crushable hollow structure. The impact absorbing portion 700 can have combination of full hollow structures and half hollow structures. Further, full hollow structures and the half hollow structures can be placed at any position in the impact absorbing portion 700. For example, in the present embodiment, as shown in the figures 7-11, has 20 two half rectangular hollow portions that are arranged at lower side. The present impact absorbing portion 700 has one half hollow structure 701 at front end. The first half hollow structure is connected with another full hollow rectangular structure at an angle to initiate absorbing of impact energy during collision. Further, each forwardly projected hollow rectangular structure can have different 25 cross section area. Furthermore, the cross section area of the forwardly projected hollow rectangular structure can be optimized as per requirements of the vehicle and magnitude of the impact energy or collision.
[0036] The connecting portions 701a, 702a, 703a, 704a, 705a transfer the impact energy or impact force from one forwardly projecting crushable hollow structure 30 to next forwardly projecting crushable hollow structure to absorb the impact
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energy completely. The plurality of forwardly projecting crushable hollow structure 701, 702, 703, 704, 705 spaced apart vertically from each other by a distance equal to longitudinal length of the connecting portion 701a, 702a, 703a, 704a, 705a from last forwardly projecting crushable hollow structure 704 to first forwardly projecting crushable hollow structure 701. The vertical width of the 5 connecting portions can be optimized based on the requirements and magnitude of the impact. The plurality of forwardly projecting crushable hollow structure 701, 702, 703, 704, 705 deforms along direction of connecting portions 701a, 702a, 703a, 704a, 705a during collision to minimize magnitude of impact of the towing hook on the pedestrian leg. 10
[0037] In another embodiment of the present subject matter, as shown in the figure 9, the connecting portions 701a, 702a, 703a, 704a, 705a has a crush initiator portion 701ab (not shown in the figure), 702ab, 703ab, 704ab. The crush initiator 702ab, 703ab, 704ab initiate/induce deformation/crush of the plurality of forwardly projecting hollow structures in the direction of the impact during 15 collision to absorb impact energy. The crush initiator 702ab, 703ab, 704ab can be any shape, such as semicircular, reverse V shape, rectangular shape. The crush initiators 702ab, 703ab, 704ab are generally a cut that is induced in the connecting portions by removing material from the connecting portions. In the present embodiment, the crush initiators 702ab, 703ab, 704ab are shown in semicircular 20 shape that gives direction for deformation of the plurality of forwardly projecting hollow structures.
[0038] As shown in the figure 10 and 11, the collapsible bracket structure 800 receives impact from the front side. During impact, first forwardly projected hollow structure 701 receives the impact energy and plastically deforms or breaks 25 during absorption of impact energy. The first forwardly projected hollow structure 701 transfers the remaining impact force on the next forwardly projected hollow structure 702 via connecting portion 701a. The second forwardly projected hollow structure 702 absorbs the impact energy and deforms accordingly. If there is some impact energy left, it goes to next forwardly projected hollow structure of the 30
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impact absorbing portion 700. In this manner, the present collapsible bracket structure 800 deforms plastically in direction of impact to absorb the impact energy and reduces injuries to pedestrian leg.
[0039] The collapsible bracket structure is made as a single integral unit via injection process. The collapsible bracket structure is made from polyester resin, a 5 polycarbonate or mixture of thereof. The present collapsible bracket structure 800 has inclined profile to match with direction of impact to absorb impact energy efficiently.
[0040] As shown in figure 12(a) and 12(b), the collapsible bracket structure 1200 has a mounting portion 1201 and a plurality of forwardly projecting hollow 10 structure 1202, 1203, 1204, 1205 that are connected with each other through connecting portions. The collapsible bracket structure 1200 has downwardly inclined angle profile for direction of impact. The angle inclination 1206 depends on the front bumper profile, behavior of leg of pedestrian and towing hook location to cater direction of impact. As shown in the figure 13(a) and 13(b), the 15 collapsible bracket 1300 has different inclined profile. Further, the collapsible bracket structure 1300 has two different angular profiles to cater direction of impact.
[0041] It is easy to manufacture and assemble the present collapsible bracket structure in the vehicle. The present collapsible bracket structure can be easily 20 manufactured using simple molding operation and can be assembled to vehicle using screw, clip, welding or any other attachment method based on vehicle requirement. The present collapsible bracket structure is light weighted as it is made of resin. In the present collapsible bracket structure, the plurality of forwardly projecting crushable hollow structure deforms during the collision to 25 minimize the magnitude of the impact on the pedestrian leg from the towing hook. The collapsible bracket structure absorbs the impact energy and reduces the injuries cause to the lower leg.
[0042] Although embodiments for the present subject matter have been described in language specific to structural features, it is to be understood that the present 30
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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 5 which fall within the scope of the present subject matter.

We claim:
1. A collapsible bracket structure (800) for reducing pedestrian leg injuries by absorbing impact energy during collision of vehicle with the pedestrian leg, the collapsible bracket structure (800) comprising:
a mounting portion (600) for mounting the collapsible bracket 5 structure (800) at front end of the vehicle; and
an impact absorbing portion (700) for absorbing impact energy during frontal collision of the pedestrian with the vehicle, the impact absorbing portion (700) comprising:
a plurality of forwardly projecting crushable hollow structure 10 (701, 702, 703, 704, 705) adapted to crush upon impact to absorb impact energy in longitudinal direction of the vehicle, wherein each forwardly projecting crushable hollow structure (701) from the plurality of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) has a front forwardly facing portion (701ac) to 15 receive the impact energy and a connecting portion (701a) that connects the forwardly projecting crushable hollow structure (701) to another forwardly projecting crushable hollow structure (702) at rear side, wherein the plurality of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) spaced apart vertically from last 20 forwardly projecting crushable hollow structure (704),
wherein the plurality of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) deforms along connecting portions (701a, 702a, 703a, 704a, 705a) during collision to minimize magnitude of impact of the towing hook on the pedestrian leg. 25
2. The collapsible bracket structure (800) as claimed in claim 1, wherein each of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) from the plurality of forwardly projecting crushable hollow structure (701,
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702, 703, 704, 705) are connected with each other by connecting portions (701a, 702a, 703a, 704a, 705a).
3. The collapsible bracket structure (800) as claimed in claim 1, wherein the each forwardly projecting crushable hollow structure (702, 703, 704, 705) 5 from the plurality of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) has crush initiator portion (702ab, 703ab, 704ab, 705ab) for initiating deformation of the forwardly projecting crushable hollow structure (702, 703, 704, 705) during impact.
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4. The collapsible bracket structure (800) as claimed in claim 1, wherein the each forwardly projecting crushable hollow structure (702, 703, 704, 705) from the plurality of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) has different cross section area.
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5. The collapsible bracket structure (800) as claimed in claim 1, wherein shape of the plurality of forwardly projecting crushable hollow structure (701, 702, 703, 704, 705) is selected from rectangular, triangular, and any polygon shape.
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6. The collapsible bracket structure (800) as claimed in claim 1, wherein number of crushable hollow structures in the collapsible bracket structure (800) is upto n numbers.
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7. The collapsible bracket structure (800) as claimed in claim 1, wherein the impact absorbing portion (700) has inclined profile to absorb pedestrian leg impact.
8. The collapsible bracket structure (800) as claimed in claim 1, wherein the 30 impact absorbing portion (700) has different angled impact absorbing profile.
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9. The collapsible bracket structure (800) as claimed in claim 1, wherein the collapsible bracket structure (800) is a single integral unit.
10. The collapsible bracket structure (800) as claimed in claim 1, wherein the collapsible bracket structure (800) is made from polyester resin, a 5 polycarbonate, or mixture thereof.
11. The collapsible bracket structure (800) as claimed in claim 1, wherein the connecting portions (701a, 702a, 703a, 704a, 705a) defines crushable 10 distance between two consecutive forwardly projecting crushable hollow structures.
12. The collapsible bracket structure (800) as claimed in claim 1, wherein the collapsible bracket structure (800) is mounted in between front bumper and 15 front cross member of the vehicle in proximity of toeing hook in impact direction, wherein a distance is provided in between the collapsible bracket structure (800) and back surface of the front bumper.