TECHNICAL FIELD
[0001] The present subject matter relates generally to a saddle type two wheeled or three wheeled vehicle. More particularly but not specifically, the present invention relates a body frame structure for the saddle type vehicle.
BACKGROUND
[0002] In order to make a vehicle appealing to diverse groups, various models of motorized vehicle designs have been developed. Generally, such motorized vehicle includes an engine block coupled with other components and suspended on a body frame with pair of wheels. Such motorized vehicle, often referred to as a saddle type vehicle, may include a vehicle body cover which surrounds the engine to improve the outer appearance of the vehicle and protect the component elements of the vehicle.
[0003] Generally, in a saddle type vehicle a frame assembly extends rearward from a head tube where the frame assembly acts as a skeleton for the vehicle that supports the vehicle loads. A front portion of the frame assembly is connected to a front wheel through one or more front suspension(s). The frame assembly extends rearwardly of the vehicle, where a rear wheel is connected to the frame assembly through one or more rear suspension(s). An internal combustion (IC) engine is mounted to the frame assembly of the vehicle and functionally connected to the rear wheel, which provides the forward motion to the vehicle.
[0004] Conventionally, the body frames of two-wheeled vehicles fall under two categories: first one is tubular body frames and second one is monocoque body frames. Typically, tubular body frames are made using a plurality of metal tubes welded together to form a skeletal load bearing framework. Further, body panels are assembled over the plurality of metal tubes to complete the body and to enhance the aesthetic appeal of the two-wheeled vehicle. Unlike tubular body frames, monocoque body frames do not include the plurality of metal tubes to form the skeletal load bearing framework.

Typically, in monocoque body frames, the skeletal load bearing framework and the body panels are unified to form a single unit. Despite different types of frame structure the space constraints is continuous challenge for automotive manufacturers. Even many infotainment and onboard diagnosis system requires plurality of batteries not only to run the vehicle but for operations of essential component, so the degree of freedom of space available in proportion to the four wheeler vehicle is relatively small, Further in saddle type two and three wheeled vehicle impact on compactness, weight and cost become critical.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] The detailed description is given with reference to the accompanying figures. The same numbers are used throughout the drawings to reference like features and components.
[0006] Fig. 1 illustrates a left side view of an exemplary motor vehicle typically called a saddle type vehicle, in accordance with an embodiment of the present subject matter.
[0007] Fig. 2 illustrates a left side view of a frame assembly according to the embodiment of the present subject matter.
[0008] Fig. 3 denotes an exploded view of a box member, according to the embodiment of the present subject matter.
[0009] Fig. 4a illustrates a front view of the box member assembled in the space, according to the embodiment of the present subject matter.
[00010] Fig. 4b illustrates a side view of the box member assembled in the space, according to the embodiment of the present subject matter.
[00011] Fig. 5 denotes a perspective view of the box member, according to the embodiment of the present subject matter.

DETAILED DESCRIPTION
[00012] The saddle type vehicles are easier to maneuver in traffic and congested areas and provide good control with better operability in heavy, stop and go driving. The engine in said vehicle is disposed low and provides a lower center of gravity making it easier to balance and control giving it better turnability and maneuverability. Such vehicles are also lighter in weight as compared to corresponding vehicles like three and four wheeler also. The rider can just place their feet on foot pegs and sit upright. The two wheeled or three wheeled vehicle having a vehicle longitudinal axis comprises of a frame unit, an engine, a suspension system, a wheel assembly, a fender assembly, a steering assembly, a seat assembly, an electronic system, a body panel assembly, a chain drive, an exhaust assembly, a headlamp assembly, a tail-lamp assembly, and a fuel tank system. Out of which the frame unit is an essential part of the saddle type vehicle. Despite different types of frame structure when the manufacturers look for e-mobility to move towards being eco-friendly and greener transport solutions. Therefore, there exists a continuous challenge for automotive manufacturers to address the emission problem within minimum space / size of the vehicle as well as at a reduced cost and weight. Hence the disposition of batteries and many essential components in saddle ride vehicle is crucial.
[00013] Further, the risk associated with the batteries is overheating which leads to explosion of batteries under extreme conditions, other risk with batteries like chemical risk due to the toxic liquid and gases, and/or, mechanical risk also there due to weight of batteries. As balancing of saddle ride vehicle may be affected if plurality of batteries is placed unevenly. Moreover, due to the presence of at least a portion of a rear shock absorber in a center portion of the vehicle, packaging the battery, especially a large sized battery becomes complicated due to the space constraints involved. Even disposing the battery near the internal combustion engine which is a heat dissipating member is also bit risky in terms of safety for the rider.

0014] Various essential parts of saddle type vehicle like air cleaner, which is used to supply clean air to the internal combustion engine. The efficient working of the air cleaner enhances the engine performance hence there is consideration for changing it more frequently because of lot of impurities in the air. The inefficient working of the air cleaner can causes engine to produce black smoke, rough noise, back firing, low mileage etc. However, when air filter is disposed near to the internal combustion engine due to the presence of larger fins of the large sized internal combustion engine there is a space constraint for disposing the air filter in the body frame of the vehicle. Furthermore, when there is a feature of varying seat height in the vehicle then the space constraint for disposing the battery and the air filter are very high. Additionally, the components like air filter & battery need to be accessible for ease of servicing, their mass be substantially disposed closer to the Centre of Gravity of the vehicle as well as adequately protected from entry of mud, water and other foreign contaminants. For optimum performance and high durability of the powertrain, it is desirable to have larger size of the air filter. However, with the space constraint & need of a compact vehicle layout requirement, increasing the size of the filter unit becomes a challenge.
[00015] There is therefore a need to provide an alternative location for disposing a battery and an air-filter in a saddle type vehicle as well as solving the above problems.
[00016] Various features and embodiments of the present invention here will be discernible from the following further description thereof, set out hereunder. However, it is contemplated that the disclosure in the present invention may be applied to any two or three wheeled vehicle without defeating the spirit of the present subject matter. The detailed explanation of the constitution of parts other than the present invention which constitutes an essential part has been omitted at suitable places.
[00017] According to an embodiment, pair of wheels is described here to operate a vehicle. The pair of wheels is installed in a saddle type vehicle typically called as motorcycle. It is pertinent to note that the pair of wheels may be mounted in

two wheeled vehicles in different arrangements. However, in the ensuing description, such pair of wheels is disposed at extreme ends of the two wheeled vehicle. It is contemplated that the concepts of the present invention may be applied to other types of vehicles and other types of casting methods within the spirit and scope of this invention. Further "front" and "rear", and "left" and "right" referred to in the ensuing description of the illustrated embodiment refer to front and rear, and left and right directions as seen from a rear portion of the vehicle and looking forward. The detailed explanation of the constitution of parts other than the present invention which constitutes an essential part has been omitted at suitable places.
[00018] The term ‘monocoque type body frame structure’ is used as a sub-frame is at least partially exposed acting as a body panel of the vehicle. Hereinafter, the term ‘body frame structure’ is used to refer to the frame assembly of the present subject matter.
[00019] The present invention has been made in view of the above circumstances.
[00020] It is an embodiment of the present invention to provide a saddle type vehicle including a front wheel and a rear wheel, a body frame structure connecting the front wheel and the rear wheel, and a main tube supported in a front portion of the body frame structure.
[00021] It is another embodiment of the present invention to provide a saddle type vehicle including a body frame structure which integrally comprises a main frame, a pair of sub frame members; the pair of sub frame members encompasses at least a portion of the rear shock absorber. In present embodiment, the rear shock absorber is a mono-shocker.
[00022] It is yet another embodiment of the present invention to provide a saddle type vehicle including the pair of sub frame members having C-shape facing front direction of the vehicle, extending in rearward direction of the vehicle;

[00023] It is yet another embodiment of the present invention to provide a saddle type vehicle including the sub frame member where the sub frame member upper end is connected to the sub frame mounting and a lower end of sub frame member is connected to a bracket frame bottom.
[00024] It is an embodiment of the present invention to provide a saddle type vehicle including a box member which is inverted U-shaped lying horizontally in the longitudinal direction of the vehicle opening the front direction of the vehicle.
[00025] It is further an embodiment of the present invention to provide a saddle type vehicle including the box member comprises an inside surface; the inside surface is there to pass at least a portion of the rear shock absorber and the main frame.
[00026] It is an embodiment of the present invention to provide a saddle type vehicle including the box member covered by the plurality of a case member to cover the internal component.
[00027] It is yet another embodiment of the present invention to provide a saddle type vehicle including the box member accommodates at least one internal component is accommodated in said space.
[00028] Accordingly, the saddle type vehicle including a body frame structure connecting a front wheel and a rear wheel of the saddle type vehicle and forming a skeletal framework of the saddle type vehicle. The body frame structure as per an embodiment of the present invention integrally comprises the pair of sub frame members in a center portion thereof and adapted to encompass at least a portion of the rear shock absorber passing through the pair of sub frame members of the two-wheeled vehicle. Particularly, the pair of sub frame members are provided in a manner such that a space is defined between the pair of sub frame members and

in proximity of the main tube, so that at least one internal component of the saddle type vehicle is capable of being accommodated in the space.
[00029] As per an aspect of the present invention, at least one internal component of the vehicle including a battery unit and an air-filter unit is accommodated in the space formed between the pair of sub frame members. In the present embodiment, the pair of sub frame members also serves to support a main tube. Thus, as per an aspect of the present invention, the battery unit and the air-filter unit are disposed in a center portion of the two-wheeled vehicle.
[00030] Disposing the battery unit and the air-filter unit in the centre portion of the saddle type vehicle as per the present invention aids in balancing the centre of gravity of the vehicle. Moreover, disposition of the battery unit and the air-filter unit in the centre portion of the saddle type vehicle facilitates easy accessibility of the battery unit and the air-filter unit for servicing and other purposes. Further, disposing the battery unit and the air-filter unit in the centre portion of the saddle type vehicle also aids in ensuring that enough space is available at a front portion of the saddle type vehicle to accommodate big size internal combustion engine with larger fins and other internal components of the saddle type vehicle and utilizes the dead space and does not affect the existing layout. Further, it is also ensured that the feature of varying the seat height in the vehicle is retained there with presence of the battery unit and the air-filter unit. The batteries and air cleaner not visible from outside which improves the aesthetic of the vehicle.
[00031] Additionally, the components like air filter and battery need to be accessible for ease of servicing. Also, air filter and battery mass need to be substantially disposed closer to the Centre of Gravity of the vehicle as well as adequately protected from entry of mud, water and other foreign contaminants. For optimum performance and high durability of the powertrain, it is desirable to have larger size of the air filter. However, with the space constraint of compact vehicle layout requirement, increasing the size of the filter unit becomes a challenge.

[00032] Further the first half comprises pre chamber and post chamber are of equal volume, which is ideal for the air filter construction and aids in the efficient performance of the engine.
[00033] Furthermore, the presence of sub frame member as style and structural member eliminates the need of side cover of the vehicle which reduces the cost and assembly time of vehicle
[00034] Further the box member having plurality of grooves on the outer casing which ensures effective cooling of the battery unit which aids to minimize the risk of overheating, thermal, chemical and mechanical risk associated with batteries.
[00035] The aforesaid and other advantages of the present subject matter would be described in greater detail in conjunction with the figures in the following description.
[00036] Exemplary embodiments detailing structure and layout of a body frame structure with box member in accordance with the present invention will be described hereunder with reference to the accompanying drawings. Various aspects of different embodiments of the present invention will become discernible from the following description set out hereunder. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. It is to be noted that terms “upper”, “lower”, “right”, “left”, “front”, “rear”, “forward” “downward”, “upward”, “top”, “bottom” and like terms are used herein based on the illustrated state or in a standing state of the saddle type vehicle with a rider sitting thereon. Furthermore, a saddle type vehicle longitudinal axis refers to a front to rear axis relative to said vehicle, while a vehicle lateral axis refers to a side to side, or left to right axis relative to the vehicle. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
[00037] Fig. 1 illustrates a left side view of an exemplary motor vehicle (100), in accordance with an embodiment of the present subject matter. Arrows provided in the top right corner of first figure depicts direction with respect to the vehicle,

wherein an arrow F denotes front direction, an arrow R indicates rear direction, an arrow Up denotes upward direction, and an arrow Dw denotes downward direction. The vehicle (100) includes a power unit (110) is fixedly mounted to a frame assembly (105). The power unit (110) includes at least one of an internal combustion engine and a traction/electrical motor (not shown). A front portion of a swing arm (115) is swingably connected to the frame assembly (105) and a rear portion of the swing arm (115) rotatably supports a rear wheel (120). The rear wheel (120) is functionally coupled to the power unit (110) through a transmission system. The transmission system (not shown) includes a chain drive/belt drive, a variable gear ratio system, or an automatic type transmission. A rear fender (125) disposed upwardly of the rear wheel (120) covers at least a portion of the rear wheel (120). Further, a pair of front forks (130) supports a front wheel (135) and is steerably supported by a main tube (shown in Fig. 2). A handlebar assembly (140) is connected to an upper portion of the pair of front forks (130). Further, a front fender (145) covers at least a portion of the front wheel (135) and the front fender (145) is mounted to the front forks (130).
[00038] A fuel tank assembly (150) is mounted to the frame assembly (105) and is disposed rearwardly of the handlebar assembly (140). A seat assembly (155) including a rider seat is disposed rearwardly of the fuel tank assembly (150) and is supported by the frame assembly (105). The seat assembly (155) may include a pillion seat. Further, a pair of rider foot pegs (165) mounted to the frame assembly (105) of the vehicle (100) that enable in supporting rider foot.
[00039] Further, the engine assembly (110) includes an air-fuel supply system (not shown) that supplies air and fuel to the engine assembly (110). An exhaust pipe (not shown) extends from the engine assembly (110) towards a muffler (not shown) that is disposed adjacently of the rear wheel (120). Plurality of panels (170) covers at least a portion of the frame assembly (105) and one or more vehicle parts.
[00040] Furthermore, the vehicle (100) includes various electrical and electronic systems including a starter system (not shown), a headlamp (175), a vehicle

control unit, and a tail lamp (180). In addition, the vehicle includes safety systems including a synchronous braking system (not shown), and an anti-lock braking system.
[00041] Fig. 2 illustrates a left side view of the frame assembly (105) according to the embodiment of the present subject matter. In present illustration; the frame assembly (105) is shown after removing the internal and external parts of the vehicle (100) from the frame assembly (105). In present embodiment; the body frame structure (105) of the vehicle is connecting the front wheel (135) and the rear wheel longitudinally F-R. As the body frame structure (105) begins from the main tube (105A), which is disposed in the front portion of the vehicle (100), and extends towards a rear portion of the vehicle (100). The body frame structure (105) extends in longitudinal direction F-R of the vehicle (100). Further, the body frame structure (105) comprise a pair of sub frame members (105B) having C-shape extending in rearward direction R of the vehicle (100) from the main frame (105A), wherein said sub frame member upper end (106a) is connected to the sub frame mounting (not shown) and a lower end (106b) is connected to a bracket frame bottom (not shown).
[00042] In the present embodiment, a mono-shock type rear suspension (201) connects the swing arm (115) to the body frame structure (105). In another embodiment; the swing arm (115) is coupled to the body frame structure (105) through one or more rear suspension(s) (201).
[00043] As per a first embodiment of the present invention and as may be seen in Fig. 2, the body frame structure (105) comprises a space (205) defined between the pair of sub frame members (201). Further, the space (205) lies in the proximity of rear portion of the main frame (105A) and the proximity of the rear shock absorber (201). The space (205) is spread laterally along the width of the vehicle (100), which means along the direction perpendicular to the longitudinal axis F-R of the vehicle (100). The space (205) also includes the gap ahead of the rear suspension (201) as well as behind of the rear suspension (201) present in proximity of the pair of sub frame members (105B). In the present embodiment,

the space (205) allows passage for enabling at least partial accommodation of at least one internal component (shown in Fig.3) of the saddle type vehicle (100). The accommodation of at least one internal component (shown in Fig.3) takes place through at least a portion of a box member (shown in Fig.3). Particularly, the space (205) is defined in a manner such that at least one internal component of the saddle type vehicle (100) besides the main frame (105A) and the rear shock absorber (201) is accommodated therein.
[00044] Fig. 3 denotes an exploded view of the box member (300), according to the embodiment of the present subject matter. Arrows provided in the top right corner of third figure depicts direction with respect to the vehicle, wherein an arrow F denotes front direction, an arrow R indicates rear direction, an arrow Up denotes upward direction, and an arrow Dw denotes downward direction. In present embodiment, the box member (300) comprises of at least one internal component (210,185). The said box member (300) is a single unit comprises a first half (303) and a second half (304). Both the first half (303) and the second half (304) is connected by the junction member (305). The first half (303) has one of the internal component and the second half (304) has another internal component. The internal components includes a battery unit (210), and an air-filter unit (185) and wherein said internal components (210,185) is placed in the first half (303) and the second half (304) respectively. The internal components (210,185) are accommodated in said space (205). The box member (300) covered by the plurality of a case member (301) to cover the internal component (210,185). The case member (301) having a curved shaped provided with plurality of slots (308).
[00045] In present embodiment, the first half (303) has an air-filter unit (185) and the second half (304) has a battery unit (210), as the internal components. The plurality of case member (301) is disposed to cover the internal component (210,185) present in the box member (300). The inside surface (302) is there to pass at least a portion of the rear shock absorber (201) and the main frame (105A). Further, the inside surface (302) is having a clearance with at least a portion of the

rear shock absorber (201) ranging from 5 milli meter to 18milli meter. The air inlet pre chamber (306) is positioned in such a way that fresh air is introduced without affecting existing layout and the air outlet to the engine (110), the battery unit (210) can be inserted into second half (304) having opening in front direction F of the saddle type vehicle (100). Further the grooves (307) on the outer cover of the box member (300) and slots (308) in cover members (301) ensure the proper cooling and ventilation of air which enhances the performance of internal component (210, 185) of the vehicle (100).
[00046] In another embodiment, the first half (303) opening in front direction F of the vehicle (100) having cylindrical case (309) to accommodate the various components like Antilock braking system module. Similarly, in second half (304) below the tube connection portion the cylindrical case (309) (partly shown) is provided to hold the various components. Both the cylindrical case (309) are attached to the box member (300).
[00047] Fig. 4a illustrates a front view of the box member (300) assembled in the space (205), according to the embodiment of the present subject matter. Arrows provided in the top right corner of fourth figure depicts direction with respect to the vehicle, wherein an arrow Rh denotes rightward direction, an arrow Lh indicates leftward direction, an arrow Up denotes upward direction, and an arrow Dw denotes downward direction. In present embodiment, the body frame structure (105) comprise the main frame (105A), the pair of sub frame members (105B) in a centre portion thereof and adapted to encompass at least a portion of the rear shock absorber (201) passing through the pair of sub frame members (105B) of the saddle type vehicle (100). Particularly, the pair of sub frame members (105B) are provided in a manner such that the space (205) is defined between the pair of sub frame members (105B) and in proximity of the main tube(105A), so that at least one internal component (210,185) of the saddle type vehicle (100) is capable of being substantially accommodated in the space (205). In present embodiment, disposing the battery unit (210) and the air-filter unit (185) in the centre portion of the saddle type vehicle (100) aids in ensuring that enough space is available at a

front portion of the saddle type vehicle (100) to accommodate big size internal combustion engine (110) with larger fins and other internal components of the saddle type vehicle (100).
[00048] Further, the space (205) is wide enough to accommodate the box member (300) having the battery unit (210) and the air-filter unit (185) in addition to the passage which also allows easy access to battery unit (210) and the air-filter unit (185). Further, the battery unit (210) and the air-filter unit (185) are reliably secured between the pair of sub frame members (105B) and are protected from damage. As front side of the box member (300) is shadowed by the main frame (105A) and sideward the box member (300) is covered by the pair of sub frame members (105B). Additional support in the form of support cables may be provided to secure the battery unit (210) to the main tube (105A) to prevent rattling of the battery unit (210). In another embodiment, Resilient mountings may also be used which aid in damping vibrations and thereby aid in preventing damage to said battery unit (210). The space (205) defined in the body frame structure (105) as per an embodiment of the present invention, aids in ensuring that the box member (300) of a large size with large size of the battery unit (210) and the air-filter unit (185) is also be comfortably accommodated therein.
[00049] Fig. 4b illustrates a side view of the box member (300) assembled in the space (205), according to the embodiment of the present subject matter. Arrows provided in the top right corner of fifth figure depicts direction with respect to the vehicle, wherein an arrow F denotes front direction, an arrow R indicates rear direction, an arrow Up denotes upward direction, and an arrow Dw denotes downward direction. In present embodiment, the body frame structure (105) comprises the pair of sub frame members (105B) in a centre portion thereof. The pair of sub frame members (105B), at least the portion of the main frame (105A) and at least the portion of the rear shock absorber (shown in Fig. 2 and Fig. 4a) combinedly comprises the box member (300) in the space (205), so that at least one internal component (210,185) of the saddle type vehicle (100) is capable of being accommodated in the space (205).

[00050] In an embodiment of the present subject matter the sub frame member (105B) can be integrated to foot peg holder (107).
[00051] Fig. 5 denotes a perspective view of the box member (300), according to the embodiment of the present subject matter. Arrows provided in the top right corner of sixth figure depicts direction with respect to the vehicle, wherein an arrow F denotes front direction, an arrow R indicates rear direction, an arrow Up denotes upward direction, and an arrow Dw denotes downward direction. The box member (300) is of inverted U-shaped lying horizontally and opening in front direction F of the vehicle (100). The first half (303) of the box member (300) having pre chamber (306) and post chamber (402). The pre chamber is at extreme left side of the first half (303) of the box chamber (300). The pre chamber (306) has optimized opening (306a) which allow measured air intake as per requirement, further the first half (303) having post chamber (402) provided with filter media. The first half (303) opening is in the front direction F of the vehicle (100) where the tube (400) is connecting first half (303) to the engine (110) to introduce the fresh air in the vehicle (100). As the fresh air is mixed with the fuel which is combusted inside the combustion chamber. Further, the second half (304) of the inverted U-shape box member (300) having opening towards the front direction F of the vehicle (100), where the battery unit (210) is inserted into that opening area of the second half (304) of the vehicle (100).
[00052] As per an aspect of the present invention, the pair of sub frame members (105B) are visible from outside and working as both style and structural part, hence eliminated which need of the side cover, hence this configuration reduces the cost and the assembly time of the vehicle (100).
[00053] As per an aspect of the present invention, in another embodiment the pair of sub frame member (105B) is integrated with the foot peg holder (107) which leads to the reduction of parts and cost associated with it.
[00054] As per an aspect of the present invention, the battery unit (210) and the air-filter unit (185) are disposed substantially in a center portion of the saddle type vehicle (100). Disposing the battery unit (210) and the air-filter unit (185) in the

centre portion of the saddle type vehicle (100) aids in balancing the centre of gravity of the vehicle (100). Moreover, disposition of the battery unit (210) and the air-filter unit (185) in the centre portion of the saddle type vehicle (100) and configured to be mounted substantially symmetrically about the mid plane of the vehicle facilitates easy accessibility of the battery unit (210) and the air-filter unit (185) for servicing and other purposes from respective side of the vehicle (100), as the battery unit (210) and the air-filter unit (185) are located substantially on either side of the vehicle (100).
[00055] Further, the space (205) for putting at least the portion of the box member (300) is sufficient enough to ensure that the feature of varying the seat assembly (155) height in the vehicle (100) is retained with presence of the battery unit (210) and the air-filter unit (185). Further the risk of overheating, thermal, chemical and mechanical risk associated with batteries is minimized.
[00056] While preferred embodiments of the present subject matter have been described above, further the first half (303) and second half (304) can be used interchangeably for placing internal components. The first half (303) can be used to place the battery unit (210) and second half (304) can be used to place the air-filter (185). So without departing the scope and spirit of the present subject matter many modifications will be apparent to those skilled in the art like internal components are not limited to batteries (210) and air cleaner (185).

List of references:
100 – Vehicle
105 – Frame structure
105A – Main tube
105B – Pair of sub frame member
107 – Foot peg holder
110 – Power unit
115 – Swing arm
120 – Rear wheel
125 – Rear fender
130 – Front fork
135 – Front wheel
140 – Handle bar assembly
145 – Front fender
150 – Fuel tank assembly
155 – Seat assembly
165 – Rider foot peg
175 – Head lamp
180 – Tail lamp
185 – Air filter unit
201 – Rear suspension
205 – Space
210 – Battery unit

300 – Box member
302 – Inside surface
303 – First half
304 – Second half

306 – Pre chamber
307 - Grooves
308 – Plurality of slots
309 – Cylindrical case 400 - Tube
402 – Post chamber

We Claim:
1. A saddle type vehicle (100) comprising:
a body frame structure (105) configured to have a main tube (105A) extending rearwardly from a head tube of said body frame structure (105); and
at least one front wheel (135) and at least one rear wheel (120) spaced apart longitudinally and connected by said body frame structure (105); and
a pair of sub frame member(105B) attached to said main tube(105A); wherein, said body frame structure (105) comprises a space (205) defined between said pair of sub frame members (105B) to enable at least partial accommodation of a box member (300), wherein said box member (300) accommodates at least one internal component (210,185) of said saddle type vehicle (100) in the space (205).
2. The saddle type vehicle (100) as claimed in claim 1, wherein said pair of sub frame members (105B) disposed laterally across width direction of the said vehicle (100) encompass at least a portion of a rear shock absorber (210).
3. The saddle type vehicle (100) as claimed in claim 1, wherein said pair of sub frame members (105B) having a substantial C-shape profile facing front direction F of the vehicle (100), said C-shape extending in rearward direction R of the vehicle (100).
4. The saddle type vehicle (100) as claimed in claim 3, wherein said sub frame member (105B) having sub frame member upper end (106a) connected to the sub frame mounting and a sub frame member lower end (106b) connected to a bracket frame bottom.

5. The saddle type vehicle (100) as claimed in claim 1, wherein the box member (300) is of inverted U-shaped lying horizontally in the longitudinal direction of the vehicle (100) and having opening in the front direction F of the vehicle (100) when seen in the plan view of the vehicle.
6. The saddle type vehicle (100) as claimed in claim 5, wherein said box member (300) comprises an inside surface (302), wherein said inside surface (302) is configured to accommodate at least a portion of the rear shock absorber (210) and the main frame (105A).
7. The saddle type vehicle (100) as claimed in claim 6, wherein said inside surface (302) has a clearance with at least a portion of the rear shock absorber (210) and this clearance ranges from 5milli meter to 18 milli meter.
8. The saddle type vehicle (100) as claimed in claim 1, wherein said box member (300) covered by a plurality of case member (301) to cover the internal component (210,185).
9. The saddle type vehicle (100) as claimed in claim 8, wherein said case member (301) having curved shape with plurality of slots (308) to provide effective cooling.
10. The saddle type vehicle (100) as claimed in claim 8, wherein said box member (300) comprises a first half (303) and a second half (304) connected together by a junction member (305).
11. The saddle type vehicle (100) as claimed in claim 10, wherein said first half (303) has one of the internal component and the second half (304) has another internal component.

12. The saddle type vehicle (100) as claimed in claim 11, wherein said internal component (210,185) comprises of at least a battery unit (210), and an air-filter unit (185).
13. The saddle type vehicle (100) as claimed in claim 10, wherein said first half (303) having opening towards the front direction F of the vehicle, wherein the battery unit (210) is inserted into the said opening area.
14. The saddle type vehicle (100) as claimed in claim 10, wherein second half (304) having pre chamber (306) and post chamber (402), wherein said pre chamber having optimized opening (306a) at extreme left end.
15. The saddle type vehicle (100) as claimed in claim 14, wherein post
chamber (402) having filter media and having opening in the front
direction F of the vehicle (100)
16. The saddle type vehicle (100) as claimed in claim 11, wherein said first half (303) opening is covered by case (309) to hold at least one internal component
17. The saddle type vehicle (100) as claimed in claim11, wherein said second half (304) covered by case (309) to hold at least one internal component below the air outlet region.
18. The saddle type vehicle (100) as claimed in claim12, wherein said battery unit (210) and the air-filter unit (185) is disposed in the centre portion of the saddle type vehicle (100) and configured to be mounted substantially symmetrically about the mid plane of the vehicle (100).