Patent Publication Number: US-2023157401-A1

Title: Dual helmet

Description:
TECHNICAL FIELD 
     The present disclosure relates to the field of protective headwear. More particularly, the present disclosure relates to a protective helmet that can be easily converted into two sets of helmets having protective cushioning, and which are comfortable, yet strong, safe, and up to the required industrial standards. 
     BACKGROUND 
     Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art. 
     Protective helmets and headwear are known to protect a wearer&#39;s head from accidental trauma. For example, helmets are strictly required to be worn by users/riders of two-wheeled vehicles around the world, as they are most prone to accidents. Further, construction workers are often required to wear hard hats or other safety headwear due to the increased risk of falling objects in and around construction sites. Similarly, athletes are required to wear protective helmets, such as football, baseball, hockey, lacrosse, skiing, snowboarding, skydiving, and cycling helmets, to protect their heads in case of high impact collisions. 
     Two-wheeler vehicular accidents account for the highest number of road accidents and deaths around the world. There are strict advisories by different jurisdictions across the globe, for the riders of two-wheelers vehicles, to wear helmets. Further, there are strict standards for the type and attributes of the helmet, which are to be followed and maintained while manufacturing the helmets. Otherwise, such helmets that are not following and maintaining these standards are not allowed to be manufactured or worn by riders while driving. Only the certified helmets, which are up to the standards are allowed to be manufactured and used by riders. 
     Various types of certification standards followed by helmet manufacturers around the world are the Department of Transportation (DOT), Indian Standard Institute (ISI), Economic Commission for Europe (ECE), and SNELL. The helmets undergo various safety tests including impact test, penetration test, and rigidity test, before being approved up to the standards and allowed to be worn by riders on road. All the tests are done by the manufacturers themselves. If a helmet fails the safety tests, the entire batch of the helmets is removed from the market. In addition, there are some penalties that can be imposed on the manufacturer if the helmets are no up to the standards. 
     Typical helmets available in the market are made considering the important impact zones of the head, that the rider may witness at the time of accidents. Basically, there is four impact zone on the head, that is considered the most important. These include the forehead, top head, ear, and rear head. The typical helmet includes a rigid outer shell defining a shell exterior and a shell interior, which is configured to be worn on the wearer&#39;s (rider&#39;s) head and extend to protectively cover the head circumferentially and vertically over the top of the wearer&#39;s skull. The helmet \includes an impact absorber line disposed under the rigid outer shell. Further, multiple comfort-fit paddings are disposed of within the absorber line, above the most important impact zones of the rider&#39;s head, and face (chin). The helmet is provided with a face shield to protect the rider from dust and wind. Further, a retention system is provided in the helmet to maintain the helmet over the rider&#39;s head. 
     Two-wheeler vehicles are mostly ridden by one to two riders. The first rider being the driver of the vehicle and the second rider being the person sitting behind the driver. In general practice, the driver of the vehicle is used to wear a helmet, however, the person sitting behind the driver generally does not wear any helmet. This irresponsible practice had diluted the strict advisories of the jurisdictions to reduce the number of fatal accidents and death caused due to two-wheeler road accidents. 
     However, the recent strict advisories in India and around the world have forced both the riders to wear helmets that are up to the standards. This has led to the use of two different helmets by the riders while riding the vehicle. With such restrictions and advisories, it has become difficult for the riders to carry two helmets with them, as the space for storing the helmets in their vehicle is limited to only one. Vehicles such as scooty are provided with space under the seat. However, the space under the seat is limited to store just one helmet. Further, motorbikes have space to hang just one helmet. 
     In many cases, a single rider (driver of the vehicle) is accompanied by another rider on-road or in between, without any notice. Even though the driver was carrying his/her helmet, the second rider cannot ride with the driver, as in the general case, the single rider does not carry an additional helmet. 
     There is, therefore, a need to provide a protective helmet that can be easily and quickly converted into two sets of helmets having different protective cushioning, and which are comfortable, yet strong, safe, and up to the required industrial standards. 
     OBJECTS OF THE PRESENT DISCLOSURE 
     Some of the objects of the present disclosure, which at least one embodiment herein satisfies are as listed herein below. 
     It is an object of the present disclosure to protect a driver as well as secondary pillion rider of a vehicle, specifically two-wheeler vehicles, from an accident. 
     It is an object of the present disclosure to provide a strong and reliable protective helmet that can be easily and quickly converted into two sets of helmets having protective cushioning. 
     It is an object of the present disclosure to provide a protective helmet that can be easily converted into two sets of helmets having protective cushioning, and which are comfortable, yet strong, safe, and up to the required industrial standards. 
     It is an object of the present disclosure to provide a compact yet comfortable cushioning means for a helmet, which can be easily and quickly converted into two sets of cushions for two different helmets when required. 
     It is an object of the present disclosure to provide a cushioning means comprising two cushions being removably configured with one another, wherein the two cushions are having an efficient design that allows them to form a single, compact yet comfortable cushion when configured together. 
     It is an object of the present disclosure to provide a compact and efficient retention system for helmets, which can be easily and quickly converted into two sets of retention straps for two different helmets when required. 
     SUMMARY 
     The present disclosure relates to a protective helmet that can be easily converted into two sets of helmets having protective cushioning, and which are comfortable, yet strong, safe, and up to the required industrial standards. 
     An aspect of the present disclosure pertains to a dual helmet adapted to be transformed into two separate helmets. The dual helmet may comprise a first shell that may be adapted to be worn over the head of users, and extending circumferentially and vertically over the head of the users. The dual helmet may further comprise a second shell that may be adapted to be removably configured over the first shell such that at least a section of the second shell is adapted to move between a first position and a second position. The first position may correspond to an expanded position where the second shell is expanded to facilitate separation of the second shell from the first shell, and the second position may correspond to a retracted position where the second shell is retracted and adapted to be configured over any of the first shell, and the head of the use. Further, the dual helmet may comprise a protective cushion arrangement adapted to be configured on an inner surface of the first shell. The protective cushion arrangement may comprise a first cushion adapted to be configured on the inner surface of the first shell, and a second cushion adapted to be removably configured within any of the first cushion, and an inner surface of the second shell. 
     Accordingly, when the second shell is separated from the first shell, the first cushion may be configured on the inner surface of the first shell to form a first helmet, and the second cushion may be configured on the inner surface of the second shell to form a second helmet. Further, when the second shell is configured over the first shell, the protective cushion arrangement may be configured on the inner surface of the first shell to form a combined helmet. 
     In an aspect, the first cushion may comprise a first set of protrusions being positioned at a predefined position on an inner surface of the first cushion such that a first set of depressions are formed between the first set of protrusions. Further, the second cushion may comprise a second set of protrusions being positioned at a predefined position on an inner surface of the second cushion such that a second set of depressions are formed between the second set of protrusions. Accordingly, when the second cushion is configured within the first cushion to form the protective cushion arrangement, the first set of protrusions of the first cushion may engage with the second set of depressions of the second cushion, and the second set of protrusions of the second cushion may engage with the first set of depressions of the first cushion. 
     In an aspect, the first helmet and/or the second helmet may comprise a lock arrangement to facilitate the locking of the first helmet and the second helmet to form the combined helmet. In an aspect, the dual helmet may comprise a comfort foam adapted to be removably configured and disposed within any or a combination of the first cushion, and the second cushion, and wherein the dual helmet comprises a face protector adapted to be removably coupled to any or a combination of the first helmet, the second helmet, and the combined helmet. 
     In an aspect, the dual helmet may comprise a first strap and a second strap removably coupled to each other to form a combined strap, and may be adapted to retain any or a combination of the first helmet, the second helmet, and the combined helmet, respectively, over the head of users. The first strap may be adapted to be configured with the first helmet, the second strap may be adapted to be configured with the second helmet, and the combined strap may be adapted to be configured with the combined helmet. Further, each of the first strap and the second strap may comprise ear cavities to accommodate the ears of the users. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure. 
       In the figures, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label. 
         FIG.  1 A  illustrates an exemplary view of a first embodiment of the proposed dual helmet having a face guard or chin guard, in a combined state, in accordance with an embodiment of the present invention. 
         FIG.  1 B  illustrates an exemplary side view and front view of a second embodiment of the proposed dual helmet without a face guard or chin guard, in a combined state, in accordance with an embodiment of the present invention 
         FIG.  1 C  illustrates an exemplary view of the proposed dual helmet of  FIG.  1 A  being separated into a first helmet and a second helmet. 
         FIG.  1 D  illustrates an exemplary view of the proposed dual helmet of  FIG.  1 B  being separated into a first helmet and a second helmet. 
         FIG.  1 E  illustrates an exemplary view of the first helmet and the second helmet of  FIG.  1 A  being completely separated from each other. 
         FIG.  1 F  illustrates an exemplary view of the first helmet and the second helmet of  FIG.  1 B  being completely separated from each other. 
         FIG.  1 G  illustrates an exemplary combined view of the  FIGS.  1 A,  1 C, and  1 E . 
         FIG.  1 H  illustrates an exemplary combined view of the  FIGS.  1 B,  1 D, and  1 F . 
         FIG.  2    illustrates an exemplary view of the first cushion and the second cushion of the proposed dual helmet, in accordance with an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims. 
     In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details. 
     If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic. 
     As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise. 
     The use of “including”, “comprising” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items. Further, the use of terms “first”, “second”, and “third”, and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. 
     The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention. 
     Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims. 
     Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those of ordinary skill in the art. Moreover, all statements herein reciting embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure). 
     The present disclosure relates to a protective helmet that can be easily converted into two sets of helmets having protective cushioning, and which are comfortable, yet strong, safe, and up to the required industrial standards. 
     According to an aspect, the present disclosure elaborates upon a dual helmet adapted to be transformed into two separate helmets. The dual helmet can include a first shell that can be adapted to be worn over the head of users, and extending circumferentially and vertically over the head of the users. The dual helmet can further include a second shell that can be adapted to be removably configured over the first shell such that at least a section of the second shell is adapted to move between a first position and a second position. The first position can correspond to an expanded position where the second shell is expanded to facilitate separation of the second shell from the first shell, and the second position can correspond to a retracted position where the second shell is retracted and adapted to be configured over any of the first shell, and the head of the use. Further, the dual helmet can include a protective cushion arrangement adapted to be configured on an inner surface of the first shell. The protective cushion arrangement can include a first cushion adapted to be configured on the inner surface of the first shell, and a second cushion adapted to be removably configured within any of the first cushion, and an inner surface of the second shell. Accordingly, when the second shell is separated from the first shell, the first cushion can be configured on the inner surface of the first shell to form a first helmet, and the second cushion can be configured on the inner surface of the second shell to form a second helmet. Further, when the second shell is configured over the first shell, the protective cushion arrangement can be configured on the inner surface of the first shell to form a combined helmet. 
     In an embodiment, the first cushion can include a first set of protrusions being positioned at a predefined position on an inner surface of the first cushion such that a first set of depressions are formed between the first set of protrusions. In another embodiment, the second cushion can include a second set of protrusions being positioned at a predefined position on an inner surface of the second cushion such that a second set of depressions are formed between the second set of protrusions. Accordingly, when the second cushion is configured within the first cushion to form the protective cushion arrangement, the first set of protrusions of the first cushion can engage with the second set of depressions of the second cushion, and the second set of protrusions of the second cushion can engage with the first set of depressions of the first cushion. 
     In an embodiment, at least one of the first cushion, and the second cushion can be adapted to be bend, to facilitate removal of the second cushion from the first cushion. 
     In an embodiment, the first helmet and/or the second helmet can include a lock arrangement to facilitate the locking of the first helmet and the second helmet to form the combined helmet. Further, the lock arrangement can facilitate the locking of the second helmet in the second position. 
     In an embodiment, the dual helmet can include a first strap and a second strap removably coupled to each other to form a combined strap, and can be adapted to retain any or a combination of the first helmet, the second helmet, and the combined helmet, respectively, over the head of users. The first strap can be adapted to be configured with the first helmet, the second strap can be adapted to be configured with the second helmet, and the combined strap is adapted to be configured with the combined helmet. Further, each of the first strap and the second strap can include ear cavities to accommodate the ears of the users. 
     In an embodiment, the dual helmet can include a comfort foam adapted to be removably configured and disposed within any or a combination of the first cushion, and the second cushion, and wherein the dual helmet includes a face protector adapted to be removably coupled to any or a combination of the first helmet, the second helmet, and the combined helmet. 
     Referring to  FIGS.  1 A to  1 H , the proposed dual helmet  100  (also referred to helmet  100 , or combined helmet  100 , herein) can be converted into two separate helmets namely a first helmet  102 - 1  and a second helmet  102 - 2 , and further reconverted and combined into the dual helmet  102 . 
     In an embodiment, the proposed helmet  100  can be configured to be transformed into a combined helmet  100  as shown in  FIGS.  1 A and  1 B , and a separated state as shown in  FIGS.  1 E and  1 F , where the combined helmet  100  is separated into the first helmet  102 - 1  and the second helmet  102 - 2 . The helmet  100  can include a first shell (also designated as  102 - 1 , herein) and a second shell (also designated as  102 - 2 , herein) removably configured with each other, and defining a shell of the first helmet  102 - 1  and the second helmet  102 - 2 , respectively. The dual helmet  100  (in the combined state), as well as the first helmet  102 - 1  and the second helmet  102 - 2  (in the separated state), can be configured to be worn on wearer&#39;s (also referred to as a rider or user, herein) head and can extend to protectively cover the head circumferentially and vertically over the top of wearer&#39;s skull as well as protect chin and face of the wearer. 
     Referring to  FIGS.  1 C, and  1 D , in an embodiment, the second helmet  102 - 2  can have the second shell  102 - 2  being removably configured over the first shell  101 - 1  such that at least a section of the second shell  102 - 2  of the second helmet  102 - 2  can be expanded to facilitate separation of the second helmet  102 - 2  from the first helmet  102 - 1 , thereby separating the dual helmet  100  into two separate helmets. The second shell  102 - 2  of the second helmet can again be retracted back from the expanded state, once the second helmet  102 - 2  is separated from the first helmet  102 - 1 . The second helmet  102 - 2  can be provided with locks  104 - 1 ,  104 - 2  to facilitate the locking of the sections of the second shell of the second helmet  102 - 2  to keep the second helmet  102 - 2  in the retracted state. 
     In an exemplary embodiment, as illustrated in  FIG.  1 C , the second shell  102 - 2  of the second helmet  102 - 2  can be expanded and separated into two sections, which can be hinged to each other at least at one point  106 . 
     In an exemplary embodiment, as illustrated in  FIG.  1 C , the locks  104 - 1 ,  104 - 2  can facilitate the locking of the second helmet  102 - 2  over the first shell of the first helmet  102 - 1 , when the dual helmet is used as a single helmet in the combined state. Further, the locks  104 - 1 ,  104 - 2  can also facilitate the locking of the second shell to form the second helmet  102 - 2 , when the dual helmet is converted into two sets of helmets. 
     In another exemplary embodiment, as illustrated in  FIG.  1 F , the second helmet  102 - 2  can include a set of locking mechanisms  104 - 3 , and  104 - 4  at left/right sides, and bottom-back side, respectively, of the second helmet  102 - 2 . Further, the first helmet  102 - 1  can include a set of lock guides  104 - 5 , and  104 - 6  at left/right sides, and bottom-back side, respectively, of the first helmet  102 - 1 . The set of locking mechanism  104 - 3 , and  104 - 4  can be adapted to engage and lock in the set of lock guides  104 - 5 , and  104 - 6 , to enable locking of the first helmet  102 - 1  and the second helmet  102 - 2  together to provide the combined helmet  100 . 
     In an embodiment, the dual helmet  100  can include a first cushion  108 - 1  (also referred to as first protective cushioning or first foam, herein) and a second cushion  108 - 2  (also referred to as second protective cushioning or second foam, herein), being removably configured together, and disposed within the first shell such that the first cushion  108 - 1  and the second cushion  108 - 2  can function as a single cushion (also referred to as a protective cushion arrangement, herein) when the dual helmet  100  is used a single helmet (combined helmet  100 ) in the combined state. 
     In an embodiment, the first cushion  108 - 1  can be permanently or removably disposed of within the first shell  102 - 1 , and the second cushion  108 - 2  can be removably configured within the first cushion  108 - 1 . Further, the second cushion  108 - 2  can be removed from the first cushion  108 - 1 , and can be configured within the second shell  102 - 2  of the second helmet  102 - 2  to provide the first helmet  102 - 1  and the second helmet  102 - 2 , each having a different cushion, and which are up to the required industrial standards. 
     In an embodiment, the helmet  100  can include a comfort foam  110  removably configured and disposed of within the first cushion  108 - 1  and/or the second cushion  108 - 2  to provide additional comfort to the wearer. In another embodiment, as illustrated in  FIGS.  1 A,  1 C,  1 E, and  1 G , the first helmet  102 - 1  and or the second helmet  102 - 2  can include a face guard  112  (also referred to as chin guard, herein) being configured with the corresponding shells to protect the face as well as the chin of the wearer from shock and accident. The face guard  112  can also be provided with a comfort foam on the inner side, to provide comfort as well as protection to the wearer. 
     In yet another embodiment, as illustrated in  FIGS.  1 B,  1 D,  1 E, and  1 H , the helmets  102 - 1  and  102 - 2  can include a visor  114  made of a transparent material to protect the wearer from wind, dust, water, and sunlight. The visor  114  can be movably configured with the helmets  102 - 1 , and/or  102 - 2  to allow the wearer to adjust the visor  114  as required. The first helmet  102 - 1 , and the second helmet  102 - 2  can include a front cap guide  110  to fix the visor  114  to the corresponding helmets. 
     In an embodiment, impact foams can be coupled to the first cushion  108 - 1  and the second cushion  108 - 2 , as well as the face guard  112  to provide additional impact protection to the first helmet  102 - 1 , and the second helmet  102 - 2 . 
     The dual helmet  100  can include the second shell associated with the second helmet  102 - 2 , on the extreme outer side of the dual helmet  100 . The helmet can include the first shell  102 - 1  associated with the first helmet  102 - 1 , being disposed of within the second shell. The helmet  100  can further include the first cushion  108 - 1  associated with the first helmet  102 - 1 , being configured within the first shell  102 - 1 . 
     In an embodiment, the second cushion  108 - 2  associated with the second helmet  102 - 2  can be removably configured within the first cushion  108 - 1 , such that the second cushion  108 - 2  can be easily separated from the first cushion  108 - 1  by slightly bending the second cushion  108 - 2  or the first cushion  108 - 1 . In another embodiment, the second cushion  108 - 1  can again be configured with the first cushion  108 - 2  to form a combined foam  108 , or combined cushion when the dual helmet is used as a combined helmet  100 . 
     In an embodiment, the dual helmet  100  can include the comfort foam  110  being disposed of within the second cushion  108 - 2 . In another embodiment, the first helmet  102 - 1  can include ear foam paddings  118 - 1 , and the second helmet  102 - 2  can include ear foam paddings  118 - 2 , to provide comfort to ears of the wearer, and protect the ears of the wearer from shock and accidents. 
     Referring to  FIG.  1 F , in an embodiment, the dual helmet can include a first strap  116 - 1  and a second strap  116 - 2  being removably coupled to each other to form a combined strap, using Velcro, but not limited to the like. The first strap  116 - 1  can be associated with the first helmet  102 - 1 , and the second strap  116 - 2  can be associated with the second helmet  102 - 2 , to facilitate keeping any or a combination of the dual helmet  100 , the first helmet  102 - 1  and the second helmet  102 - 4 , over the head of the wearers. 
     In an exemplary embodiment, the material for the first shell  102 - 1 , the second shell  102 - 2 , the face guard  112  can be selected from a group of materials including fiberglass, carbon fiber, polycarbonate, composite fiver, plastic, metal, alloys, and Kevlar, but not limited to the likes. 
     In an embodiment, an inner lining of the first shell  102 - 1  and the outer shell  102 - 2  can be provided with any or a combination of Styrofoam and koroyd, but not limited to the likes, having the capability to absorb impacts. 
     In an embodiment, the retention system can include two sets of straps being riveted to the first shell  102 - 1  and the second shell  102 - 2  associated with the first helmet and the second helmet, respectively. In an embodiment, the set of straps can include one or more engaging means such as but not limited to rivets to couple the set of straps to the first shell  102 - 1  and the second shell  102 - 2 . The two sets of straps can be coupled to each other using Velcro, and the likes, when the helmet is used as a combined helmet. The two sets of straps can be separated and used as a separate retention system for the first helmet  102 - 1  and the second helmet  102 - 2 , when the dual helmet is used in a separated state. 
     In an embodiment, the straps can include a set of foam pieces being configured with the straps of the retention system. The straps can include ear cavities to accommodate the ears of the wearer. The retention system can further include a set of locks to maintain and fix the helmet over the head of the wearers. 
     In an embodiment, the set of foams can be separated from the retention system and can be used as a comfort foam for and around the ear of the wearer of the helmets. In an exemplary embodiment, the set of foams can be configured with Velcro to facilitate coupling of the set of foams to the part of the helmet around the ear of the wearer of the second helmet. 
     In an embodiment, the first cushion  108 - 1  can be permanently or removably disposed of within the first shell  102 - 1 , and the second cushion  108 - 2  can be removably configured and disposed of within the first cushion  108 - 2 . In an embodiment, an inner surface of the first cushion  108 - 1  facing the second cushion  108 - 2  can have a zigzag arrangement of a first set of protrusions (also referred to as first male engaging means, herein) being positioned at predefined positions such that a first set of depressions (also referred to as first female engaging means, herein) are formed between the first set of protrusions. Further, a surface of the second cushion  108 - 2  facing the first cushion  108 - 1  can have a zigzag arrangement of a second set of protrusions (also referred to as second male engaging means, herein) at predefined positions such that a second set of depressions (also referred to as second female engaging means, herein) are formed between the first set of protrusions. 
     In an implementation, as shown in  FIG.  2   , when the helmet  100  is in the combined state, the first set of protrusions of the first cushion  108 - 1  can engage with the second set of depressions of the second cushion  108 - 2 , and the second set of protrusions of the second cushion  108 - 2  can engage with the first set of depressions of the first cushion  108 - 1 , thereby joining the two cushion  108 - 1 ,  108 - 2  together to form the cushioning  108 . 
     As illustrated in  FIG.  2   , the second cushion  108 - 2  can be a structure adapted to be fit between the second shell  102 - 2  associated with the second helmet  102 - 2 , and the first cushion  108 - 1 . In an embodiment, the structure of the second cushion  108 - 2  can have a second set of depressions  206  or cut sections  206  (also referred to as the second female engaging means  206 , herein) being configured at predefined positions around the structure of the second cushion  108 - 2 . 
     In an embodiment, the bending of the second cushion  108 - 2  can facilitate the pulling out or removal of the second cushion  108 - 2  from the first cushion  108 - 1 . In an embodiment, the second cushion  108 - 2  can include strings  204  being configured within the structure of the second cushion  108 - 2  to facilitate bending of the second cushion  108 - 2  to remove the second cushion  108 - 2  from the first cushion  108 - 1 . 
     In an exemplary embodiment, the structure of the second cushion  108 - 2  can be made of a material selected from polystyrene, and Styrofoam, but not limited to the likes. 
     Further, the first cushion  108 - 1  can be a structure adapted to fit within the first shell  102 - 1  associated with the first helmet  102 - 1 . The structure of the first cushion  108 - 1  can be adapted to accommodate the second cushion  108 - 2 , when required. In an embodiment, the structure of the first cushion  108 - 1  can have a first set of protrusions  202  (also referred to as first male engaging means  202 , herein) being configured at predefined positions around the structure of the first cushion  108 - 1 . 
     In an exemplary embodiment, the structure of the first cushion  108 - 1  can be made of a material selected from polystyrene, and Styrofoam, but not limited to the likes. 
     In an implementation, when the dual helmet  100  is in the combined state, the first male engaging means  202  associated with first cushion  108 - 1  can engage with the second female engaging means  206  associated with the second cushion  108 - 1 , to facilitate coupling of the second cushion  108 - 2  within the first cushion  108 - 1 . 
     As used herein, and unless the context dictates otherwise, the term “coupled to” is intended to include both direct coupling (in which two elements are coupled to each other or in contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms “coupled to” and “coupled with” are used synonymously. Within the context of this document terms “coupled to” and “coupled with” are also used euphemistically to mean “communicatively coupled with” over a network, where two or more devices are able to exchange data with each other over the network, possibly via one or more intermediary device. 
     Moreover, in interpreting the specification, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer to at least one of something selected from the group consisting of A, B, C . . . and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc. 
     While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art. 
     Advantages of the Present Invention 
     The present invention protects a driver as well as secondary pillion rider of a vehicle, specifically two-wheeler vehicles, from an accident. 
     The present invention provides a strong and reliable protective helmet that can be easily and quickly converted into two sets of helmets having protective cushioning. 
     The present invention provides a protective helmet that can be easily converted into two sets of helmets having protective cushioning, and which are comfortable, yet strong, safe, and up to the required industrial standards. 
     The present invention provides a compact yet comfortable cushioning means for a helmet, which can be easily and quickly converted into two sets of cushions for two different helmets when required. 
     The present invention provides a cushioning means comprising two cushions being removably configured with one another, wherein the two cushions are having an efficient design that allows them to form a single, compact yet comfortable cushion when configured together. 
     The present invention provides a compact and efficient retention system for helmets, which can be easily and quickly converted into two sets of retention straps for two different helmets when required.