DESC:TECHNICAL FIELD
[0001] The present subject matter relates generally to a saddle ride-type motor vehicle, and more particularly but not exclusively, to a frame member for the saddle ride-type motor vehicles.
BACKGROUND
[0002] Generally, in a two-wheeled vehicle a frame assembly extends rearward from a head tube. The frame assembly acts as a skeleton for the vehicle that supports the vehicle loads. A front portion of the frame assembly connects to a front wheel through one or more front suspension(s). The frame assembly extends rearward of the vehicle, where a rear wheel is connected to a frame assembly through one or more rear suspension(s). A power unit includes an internal combustion (IC) engine that is mounted to the frame assembly of the vehicle. The IC engine is functionally connected to the rear wheel, which provides the forward motion to the vehicle. Typically, plurality of panels is mounted to the frame assembly of the vehicle that covers various vehicle components.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] The detailed description of the present subject matter is described with reference to the accompanying figures. Same numbers are used throughout the drawings to reference like features and components.
[0004] Fig. 1 illustrates a left side view of an exemplary motor vehicle, in accordance with an embodiment of the present subject matter.
[0005] Fig. 2 (a) depicts a left side perspective view of the frame member with parts laid thereon, in accordance with an embodiment of the present subject matter.
[0006] Fig. 2 (b) depicts a left side perspective view of the frame structure, in accordance with the embodiment depicted in Fig. 2 (a).
[0007] Fig. 2 (c) depicts a left side view of the frame, in accordance with another embodiment as depicted in Fig. 2 (b).
[0008] Fig. 2 (d) an exploded view of the frame member, in accordance with embodiment as depicted in Fig. 2 (b).
[0009] Fig. 2 (e) depicts a left side view of the main frame of the frame member, in accordance with the embodiment of Fig. 2 (d).
[00010] Fig. 2 (f) depicts a plan view of the frame member, in accordance with the embodiment of Fig. 2 (b).
DETAILED DESCRIPTION
[00011] Typically, in the two-wheeled or three wheeled saddle type vehicle the frame assembly acts as the structural member of the vehicle. Also, the frame assembly is the load-bearing member of the vehicle. The frame assembly is one of the heavy parts of the vehicle. With the advancements in technology, the number of components and accessories mounted to the frame assembly are increasing. Therefore, to withstand the weight, the frame assembly may be provided with more thickness or with reinforced parts. However, this increases the weight of the frame assembly affecting the performance of the vehicle due to increased weight.
[00012] Furthermore, the frame assembly in a scooter type vehicle has a front zone, a rear zone, and a step-through portion. The front zone supports steering assembly and front suspensions connected to the front wheel. The front zone receives forces and shocks from the front wheel due to varying and/or other road conditions. Generally, the front zone consists of a main tube that supports the steering and is subject to the aforementioned forces and shocks. Also, the step-through portion is used for load carrying. Further, the front zone forms the under-bone zone and extends rearward supporting the rear zone.
[00013] The rear zone of the frame assembly supports the power train. The power train includes transmission system, air filter, and other components connected thereon adding additional weigh to the power train. The rear zone is subject to forces from the power train and also from the payload and the rear axle. The forces acting on the rear zone are also transferred to the front zone of the frame assembly. Therefore, the front zone should be stiff and meeting strength requirements to withstand the forces acting thereon.
[00014] Generally, the strength required for withstanding the loads is achieved by introducing main tube with higher cross-section. However, such higher cross-section of the main tube affects the space on the vehicle for packaging other components and also increases the weight of the frame assembly. Moreover, gussets are also used to reinforce the main tube. However, the provision of gussets increases the part count of the vehicle and welding of longer gussets or multiple gussets results in distortion of the main tube affecting the assembly and fit of parts to the frame assembly. For example, welding distortion affects the mounting of panels altering the desired fit and also resulting in interference or gaps between parts like front panel, and leg shield.
[00015] Thus, there is a need for a frame assembly for a vehicle having a stiff and rigid front zone and at the same time enable retaining compact size of vehicle and also without majorly increasing the weight.
[00016] Hence, the present invention is aimed at addressing the aforementioned and other problems in the prior art. Hence, it is an object of the present subject matter is to provide a frame member for a saddle type vehicle. According to one aspect, the present subject matter provides a frame member that includes a main frame and a sub-frame connected thereto.
[00017] The main frame includes a first portion, a mid-portion, and a second portion. The mid-portion connects the first portion and the second portion. The second portion is disposed at angle with respect to the first portion. The sub-frame extends inclinedly rearward from a rear portion of the main frame. In one embodiment, the frame member defines a step-through portion. A power unit is swingably connected/coupled to the main frame.
[00018] In one embodiment, the first portion, the second portion, and the mid-portion are integrally composed of a lightweight material including a lightweight metal, or a fiber-reinforced plastic. The first portion extends substantially in along a vertical or an inclined manner below a handle bar assembly. The mid-portion, which is preferably an L-shaped bend with a smooth curved transition, connects the first portion to the second portion, wherein the second portion is disposed substantially horizontally. It is a feature of the present subject matter that the main frame is provided with increasing cross-sectional area moving in a direction away from the mid-portion.
[00019] It is a feature of one embodiment that the first portion includes an increasing cross-section moving in a direction away from the mid-portion, wherein the cross-sectional area increases in a first direction. In an embodiment, the first direction is a vertical direction. In other words, the cross-sectional area increases in a vertical direction when viewed from vehicle side. In one embodiment, the first portion includes a steering pivot housing disposed at a front end of said first portion, wherein said steering pivot housing includes a triangular profile when viewed from vehicle side. The steering pivot housing portion connects the steering portion to the main tube.
[00020] It is another feature that the second portion includes an increasing cross-section moving in a direction away from the mid-portion, wherein the cross-sectional area increases in a second direction. In an embodiment, the second direction is a lateral direction of the vehicle.
[00021] Therefore, it is a feature of the present subject matter that the main frame is provided with varying cross-section thereby providing improved load bearing front zone of the frame member. It is an advantage that the main frame is composed as a single frame structure that includes less components and further requiring less welding requirements.
[00022] In one embodiment, the second portion includes a pair of peripheral arms disposed on the lateral sides. The peripheral arms include a front portion connected to the lateral sides and a rear portion extends inclinedly aligning with a front portion of the sub-frame.
[00023] In one embodiment, the main frame is provided with engine mounting lugs provided on lower surface of the peripheral arms. The engine mounting lugs is provided with an aperture portion to enable swingable mounting of the IC engine through a toggle link or a swing arm.
[00024] It is yet another feature that at least a portion of the main frame includes a C-shaped cross-section, wherein the C-shaped cross-section has an opening disposed outward side. It is an advantage that the C-shaped cross-section enables easy accommodation of the various vehicle or frame member parts like a steering pivot housing. Subsequently, the open C-section is covered to provide an enclosed structure.
[00025] In another embodiment, the main frame is made of a fiber reinforced plastic material that is light is of lightweight and that same time is subject to any structural distortions.
[00026] In one embodiment, the main frame includes an outer layer member being made of a lightweight material including a fiber-reinforced plastic. Also, the outer layer enclosed one or more inner layers, wherein the inner layers provide structural support to the main frame. Also, the layer members may be hollow type or may include foam disposed therein. The frame member provides structural rigidity without increasing the weight.
[00027] Moreover, the main frame of the frame member is composed of less number of parts as the main frame is formed as a single structure. In one embodiment, the main frame is made of a lightweight metal that is of less weight and at the same time is capable of supporting various loads.
[00028] It is yet another advantage that any welding distortions are reduced thereby reducing any interference between the various panels of the vehicles.
[00029] In one embodiment, the mid-portion forms a transition portion connecting the first portion having wider sides in vertical direction and the second portion having wider sides in horizontal direction.
[00030] In one embodiment, the said second portion includes at least a portion with cross-section comprising a width substantially greater than a depth thereof, whereby the second portion will be acting as a floorboard portion or floorboard support portion.
[00031] In one another embodiment, the first portion includes a steering support portion disposed at front-end portion and the steering support portion includes a substantially triangular shape.
[00032] In one embodiment, the main frame including the first portion, the mid-portion, and the second portion that are integrally composed.
[00033] In one another embodiment, the second portion includes a triangular shape when viewed from vehicle top, wherein the triangular shape includes a base portion in proximity to the power unit and a vertex of the triangular shape connected to the mid-portion.
[00034] The frame member is capable of supporting a sub-frame mounted to a pair of peripheral arms disposed on either lateral sides of said main frame.
[00035] With the essence of the embodiments provided below, the frame member can have inner layer members with multiple variations of regular or irregular geometrical cross-section. Correspondingly, outer layer members that are provided to secure the respective inner layer members take at least an outer peripheral shape of the inner layer members. Also, the frame member having inner layer members, outer layer members, and gussets being made of composite material can be integrally formed with frame structure.
[00036] 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.
[00037] Arrows provided in the top right corner of each figure depicts direction with respect to the vehicle, wherein an arrow F denotes front direction, an arrow R indicated rear direction, an arrow UP denotes upward direction, an arrow DW denoted downward direction, an arrow RH denotes right side, and an arrow LH denoted left side, as and where applicable.
[00038] Fig. 1 illustrates a left side view of an exemplary motor vehicle 100, in accordance with an embodiment of the present subject matter. The vehicle (100) comprises a frame member (200) with a step-through space (ST). A power unit (105) is swingably connected to the frame member (200) of the vehicle (100). The power unit (105) includes at least one of an internal combustion engine or a traction motor. The power unit (105) also comprises of a starter system mounted thereon. A rear wheel (110) is functionally coupled to the power unit (105) through a transmission system (115). The transmission system (115) may include a fixed gear chain drive or continuously variable transmission (CVT) or an automatic manual transmission (AMT) or the like.
[00039] Similarly, the vehicle (100) includes at least one front wheel (120). The front wheel (120) is connected to a handle bar assembly (125) through front suspension (130). A front fender (135) covers at least a portion of the front wheel (120). Similarly, a rear fender (140) covers at least a portion of the rear wheel (110). Further, one or more rear suspension(s) (145) functionally connect the rear wheel (110) to the frame member (200).
[00040] A floorboard (150) supported by the frame member (200) is disposed at the step through portion (ST). A seat assembly (155) may be supported by the portion of the frame member (200). In an embodiment, a utility box (not shown) is also supported by the frame member (200) and the seat assembly (155) is supported by the utility box. The seat assembly (155) is hinged and provides access to the utility box in an open condition of the seat assembly (155). In addition, the vehicle (100) has plurality of panels including a front panel (160A) disposed upwardly of the front fender (135). In the present embodiment, the front fender (135) is integrated with the front panel (160A). A leg shield (160B) is disposed rearwardly of the front panel (160A). The front panel (160A) and the leg shield (160B) cover at least portion of the frame member (200) at the front portion of the vehicle (100). A below seat cover (160C) is being disposed forwardly of the power unit (105) and below the seat assembly (155). A pair of rear panels (160D) are disposed below the seat assembly (155), which are extending downwardly covering at least a portion of the power unit (105). The internal combustion of the power unit (105) will be supplied with air fuel mixture supplied by a fuel tank (not shown) and an air induction system (not shown) that are coupled through a carburetor or a fuel injection system (not shown). The vehicle (100) comprises an auxiliary power source (not shown) that includes a battery or a hydrogen cell or a fuel cell or the like. Further, the traction motor of the power unit (105) is powered by the auxiliary power source mounted to the vehicle (100).
[00041] Further, the vehicle (100) includes various electronic, electrical, and mechanical systems such as a vehicle control unit, an anti-lock braking system, or a synchronous braking system. Also, a headlamp (165A), and a tail lamp (165B) are provided in a front portion and a rear portion of the vehicle (100) respectively.
[00042] Fig. 2 (a) illustrates a left side perspective view of a frame member (200) with parts mounted thereto, in accordance with an embodiment of the present subject matter. The frame member (200) comprises a main frame (205) and a sub-frame (225) connected thereto. The main frame (205) rotatably supports a steering assembly including the front wheel (120), which is connected to a handle bar pipe (125A) through the front suspension (130) and a steering tube (not shown).
[00043] The main frame (205) of the frame member includes (200) a first portion (205), a mid-portion (215), and a second portion (220). The first portion (210) of the main frame (205) rotatably supports the steering assembly. The first portion (210) is connected to the mid-portion (215), which is a bent portion. The mid-portion (215) acts as a transition portion, wherein the cross-section of the main frame changes from first portion (210) to the second portion (220) through the mid-portion (215) forming the transition portion. Further, the mid-portion (215) is connected to the second portion (220). The second portion (220) is disposed at angle with respect to the first portion 210. In the present embodiment, the main frame (205) defines a step-through portion (ST). The sub-frame (225) extends inclinedly rearward from a rear portion of the main frame (205). In a preferred embodiment, the sub-frame (225) includes a pair of rear tubes (225R, 225L) that are disposed with a separation therebetween.
[00044] The power unit (105), in one embodiment, is swingably connected to the main frame (205). The internal combustion (IC) engine of the power unit (105) is forwardly inclined, wherein a piston axis of the IC engine is forwardly inclined. In the present embodiment as depicted in Fig. 2 (a), the power unit (105) is mounted to the swing arm (170) that is swingably connected to the main frame (205). In one embodiment, the power unit (105) includes the traction motor that includes a brush less direct current (BLDC) motor. The traction motor is hub mounted to the rear wheel (110) or directly mounted to a swing arm, wherein the hub motor is mounted to a rear wheel axle (not shown) that supports the rear wheel (110), wherein the traction motor is in direct contact with a rim of the rear wheel (110). Further, the rear suspension (145) is provided to connect the rear wheel (110) to the pair of rear tubes (225R, 225L). The sub-frame (225) is provided with plurality of cross members (230) that are connecting the pair of rear tubes (225R, 225L).
[00045] Fig. 2 (b) illustrates a left side perspective view of the frame member (200), in accordance with the embodiment of Fig. 2 (c). Fig. 2 (c) illustrates a left side view of the frame member (200), in accordance with the embodiment of Fig. 2 (b). The first portion (210) extends from below a handle bar assembly (125) towards the mid-portion (215). In one embodiment, the first portion (210) is disposed at the center of the vehicle (100). The first portion (210) extends substantially along a vertical or an inclined manner. The mid-portion (215) connected to a lower end portion of the first portion is an L-shaped bend with a smooth curved transition. The mid-portion (215) is connected to the second portion (220) that extends substantially horizontally, in the longitudinal direction of the vehicle (100). In one embodiment, the first portion (210), the mid-portion (215), and the second portion (220) are integrally formed. Also, in another embodiment, the main frame (205) is made of a carbon fiber, glass fiber, or fiber reinforced place that provide structural rigidity and at the same time taking up less weight.
[00046] Further, the frame member (200) with the second portion (220) includes at least a portion with cross-section comprising a width (220W) substantially greater than a depth (220D) thereof. Thus, the cross-section taken at the second portion (220) is having a rectangular cross-section or the like with longer width compared to depth that forms the floorboard or the floorboard support.
[00047] Further, the second portion (220) includes a pair of peripheral arms (220A) that are disposed on the lateral sides of the second portion (220). The peripheral arms (220A) includes a front portion (220AF) connected to the lateral sides and a rear portion (220AR) extends inclinedly aligning with a front portion of the sub-frame (225) thereby enabling reception of the sub-frame (225). Further, the front portion has tapering thickness, wherein the front portion (220AF) is tapering in a forward direction of the main frame (205). The peripheral arms (220A) are integrated with the second portion (220) of the main frame (205).
[00048] In an assembled condition, the sub-frame (225) is secured to the main frame (205). In case of the frame member being made of a fiber-reinforced plastic or the like, the sub-frame (225) is secured to the peripheral arms (220A) of the main frame (205). Also, an additional reinforcing member (235) is provided at the joint section of the main frame (205) and the sub-frame (225) to provide structural rigidity.
[00049] In the present embodiment, the main frame (205) is provided with engine mounting lugs (220E) that support at provided on lower surface of the peripheral arms (220A). The engine mounting lugs (220E) is provided with an aperture portion to enable swingable mounting of the IC engine through a toggle link or a swing arm. In one embodiment, the engine mounting lugs (220E) are made of fiber-reinforced plastic molded with the second portion (220) of the main frame (205). Also, the engine mounting lugs (220E) includes metal bearings or the like enmolded therewith, wherein the metal bearings or the like enable swinging motion of the IC engine.
[00050] Fig. 2 (b) depicts cross-sections taken at axis X-X’ and at Y-Y’. The first cross-section is taken at the front-end portion of the first portion 210. The first cross-section at X-X’ has lateral sides wider than other sides thereof. Similarly, the second cross-section is taken at the rear-end portion of the second portion (220). The second cross-section at Y-Y’ has horizontal sides wider than the other sides thereof. Thus, mid-portion (215) connecting the first portion (210) and the second portion (220) forms smooth transition for the change of shape of the first portion (210) having wider sides in vertical direction to the second portion (220) having wider sides in width direction.
[00051] Fig. 2 (d) depicts an exploded view of the frame member (200), in accordance with the embodiment as depicted in Fig. 2 (a). Fig. 2 (d) depicts an exploded view of various parts being mounted or affixed to the main frame (205). The main frame (210) of the frame member (200) functions as a gusset member that supports the various parts of the frame member (200). It is an advantage that the main frame (205), which is the front zone of the frame member (200), is a single piece structure that is rigid and lightweight. In one embodiment, at least a portion of the main frame (205) includes a C-shaped cross-section. The C-shaped cross-section has an opening disposed outward side. The C-shaped section enables easy accommodation of the various vehicle or frame member parts. In the present embodiment, a front portion of the first portion (210) of the main frame (205) also includes the C-section with opening facing frontward of the vehicle (100), wherein the C-section is capable of accommodating a steering pivot housing (240) also referred to as HSP. Subsequently, the open C-section is covered thereby securing the steering pivot housing (240) to the main frame (205). Similarly, in another embodiment, the rear portions (220AR, 220AL) are provided with C-section to hold the sub-frame (225) ruggedly. It is an advantage that the parts like steering pivot housing (240) and the sub-frame are secured to the main frame (205) as the C-section improves ease of manufacturability. Further, the main frame (205) is provided with increasing cross-sectional area in a direction away from the mid-portion, thereby providing structural ruggedness.
[00052] Furthermore, the frame member (200) includes a side stand-mounting bracket (245) that is disposed preferably on the left side of the main frame (205), wherein the side stand mounting bracket (245) is made of metal. In case of the main frame made of metal, the side stand mounting bracket (245) is welded to the main frame (205). Similarly, in case of the main frame (205) made of fiber-reinforce plastic, the side stand mounting bracket (245) is enmolded with the main frame. In addition, the mainframe (205) supports a pair of pillion foot peg brackets (250R, 250L) that are disposed on either sides of the main frame (205). The foot peg brackets (250R, 250L) are also of rigid material like metal to withstand the weight and the foot peg brackets (250R, 250L) are either welded or enmolded depending on the composition of the main frame. In another embodiment, the vehicle includes the floorboard (150) disposed at the step-through portion of the vehicle (100), wherein the step through portion is define by the frame member (200). Thus, the frame member (200) also includes a pair of floorboard support members (255R, 255L) that are secured to the mid-portion (215) of the main frame (205), wherein the floorboard support members (255R, 255L) support the floorboard (150) being disposed at the step-through portion (ST).
[00053] Fig. 2 (e) depicts a left side view of the main frame of the frame member, in accordance with the embodiment of Fig. 2 (d). Fig. 2 (f) depicts a plan view of the main frame, in accordance with the embodiment of Fig. 2 (b). The main frame (205) comprises an increasing cross-sectional area in a direction away from the mid-portion (215). In the present embodiment, the main frame (205) at the mid-portion has a first cross-sectional area (A1), wherein the cross-sectional area of the first portion (210) is substantially equal to the cross-sectional area of the mid-portion (215) at the connecting portion and the cross-sectional area of the first portion (210) increases moving in a direction away from the mid-portion (215). Further, the cross-sectional area increases in a first direction (UP-DW), which is substantially along vertical direction of the frame member (200). In other words, the first portion (210) of the main frame (205) includes a first triangular shape (T1) when viewed from vehicle side, wherein a first vertex (VT1) of the first triangular shape (T1) is in proximity to the mid-portion (215) and a first base portion (BT1) of the first triangular shape (T1) is away from the mid-portion (215). In the present embodiment, a second cross-sectional area (A2) of the first portion at the front end is substantially greater than the first cross-sectional area (A1), which is in proximity to the mid-portion (215). Herein, the cross-sectional area in proximity to the mid-portion (215) is referred to as first cross-sectional area (A1) and the cross-sectional area away from the mid-portion (215) is referred to as the second cross-sectional area (A2). Thus, the first portion (210) with increasing cross-section with the second cross-sectional area (A2) at the steering pivot housing (240) mounting portion enables in withstanding loads/forces acting on the main frame (205).
[00054] In one embodiment, the first portion (210) includes the steering support portion (245) disposed at a front end of the first portion (210), wherein the steering support portion (245) includes a triangular shape (T2) when viewed from vehicle side. The steering supporting portion (245) having a second triangular shape (T2) has a second base portion (BT2), which is same as a first base (BT1) and a second vertex (VT2) of the triangular portion (T2) is away from the base portion (BT2). The steering support portion (245) capable of accommodating the steering pivot housing (240) connects the steering pivot housing (240) to the main tube (210) of the main frame (205).
[00055] Similarly, the main frame (205), as shown in plan view in Fig. 2 (f), comprises the second portion (220) with increasing cross-sectional area moving in a direction away from the mid-portion (210). In the present embodiment, the main frame (205) has a third cross-sectional area (A3) in proximity to the sub-frame (225), wherein the third cross-sectional (A3) area is substantially greater than the first cross-sectional (A1). Further, the cross-sectional in the second portion (220) increase in a second direction, which is in a lateral direction RH-LH of the frame member (200). In one embodiment, the second portion (220) is capable of supporting the floorboard (150), wherein the second portion (220) includes the triangular shape (T3) when viewed from vehicle top. A vertex (VT3) of the third triangular portion (T3) is in proximity to the mid-portion (215) and a third base portion (BT3) of the third triangular portion (T3) is disposed away from the mid-portion (215). Thus, the rear portion of the main frame (205) is capable of withstanding the loads/forces acting on the main frame (205) from the power unit (105) or the sub-frame (225). Therefore, the main frame (205) includes a first cross-sectional area (A1) at the mid-portion (210) and the cross-sectional area increases moving in a direction away & downstream from the mid-portion (215), wherein the first portion (210) includes the second cross-sectional area (A2) increasing in the first direction (UP-DW) and the second portion (220) includes the third cross-sectional area (A3) increasing in the second direction (RH-LH).
[00056] Thus, the main frame of the frame member is capable of withstanding forces from the front wheel and from the power unit coupled to the rear wheel acting on the front zone of the frame member, wherein the front zone is the main frame of the frame member.
[00057] It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein. Many modifications and variations of the present subject matter are possible in the light of above disclosure.

List of reference signs

100 vehicle
105 power unit
110 rear wheel
115 transmission system
120 front wheel
125 handlebar assembly
130 front suspension
135 front fender
140 rear fender
145 rear suspension
150 floorboard
155 seat assembly
160A front panel
160B leg shield
160C below seat cover
160D rear panel
200 frame member
205 main frame
210 first portion
215 mid-portion
220 second portion
220A peripheral arms
220AF front portion
220AR rear portion
220W width
220D depth
220E mounting lugs
225 sub frame
225R, 225L pair of rear tubes
230 cross members
235 additional reinforcing member
240 steering pivot housing
245 stand-mounting bracket
UP-DW first direction
T1 first triangular shape
T2 second triangular shape
T3 third triangular shape
VT1 first vertex
VT2 second vertex

VT3 third vertex
BT1 first base portion
BT2 second base portion
BT3 third base portion
ST step-through portion
,CLAIMS:We claim:
1. A frame member (200) for a saddle ride type vehicle (100), said frame member (200) comprising:
a main frame (205) including a first portion (210), a mid-portion (215), and a second portion (220), said first portion (210), capable of rotatably supporting a steering member of said vehicle (100), extends downward towards said mid-portion (215), said second portion (220) extends rearward from said mid-portion (215) substantially in a longitudinal direction (F-R) of said vehicle (100), wherein at least one of said first portion (210) and said second portion (220) are having a cross-sectional area (A2, A3) increasing moving away from said mid-portion (215) having a first cross-sectional area (A1).
2. The frame member (200) for the saddle ride type vehicle (100) as claimed in claim1, wherein said first portion (210) includes a second cross-sectional area (A2) increasing in a first direction (UP-DW) when moving away from said mid-portion (215), and said first direction (UP-DW) is substantially a vertical direction.
3. The frame member (200) for the saddle ride type vehicle (100) as claimed in claim1, wherein said second portion (220) includes a third cross-sectional area (A3) increasing in a second direction (RH-LH) moving away from said mid-portion (215), and said second direction (RH-LH) includes a lateral direction.
4. The frame member (200) for the saddle ride type vehicle as claimed as claimed in any preceding claims, wherein said first direction (UP-DW) is a vertical direction when viewed from a side of the vehicle (100) and said second direction (RH-LH) is a width direction (RH-LH) when viewed from a top of the vehicle (100).
5. The frame member (200) for saddle ride type vehicle (100) as claimed in claim 1, wherein said mid-portion (215) forms a transition portion connecting the first portion (210) having wider sides in vertical direction (UP-DW) and the second portion (220) having wider sides in horizontal direction (RH-LH).
6. The frame member (200) for the saddle ride type vehicle (100) as claimed as claimed in 1, wherein said second portion (220) includes at least a portion with cross-section comprising a width (220W) substantially greater than a depth (220D) thereof.
7. The frame member (200) for the saddle ride type vehicle (100) as claimed in claim1, wherein said first portion (210) includes a steering support portion (245) disposed at a first end portion disposed away from the mid-portion (215), said steering support portion (245) includes substantially a second triangular shape (T2) when viewed from side of said main frame (205), said second triangular shape (T2) includes a second base portion (BT2) supporting a steering pivot housing (240) and a second vertex (VT2) away from the second base portion (BT2).
8. The frame member (200) for the saddle ride type vehicle (100) as claimed in claim 1 or 7, wherein said first portion (210) includes a first triangular portion (T1) having a first base portion (BT1), and said first base portion (BT1) substantially overlaps with the second base portion (BT2) of said second triangular portion (T2).
9. The frame member (200) for the saddle ride type vehicle as claimed in claim 1, wherein said second portion (220) includes a third triangular shape (T3) when viewed from vehicle top, wherein said triangular shape (T3) includes a base portion (BT3) in proximity to a power unit (105) and a vertex (VT3) of the triangular shape (T3) connected to the mid-portion (215).
10. The frame member (200) for the saddle ride type vehicle as claimed in claim1, wherein said first portion (210), said mid-portion (215), and said second portion (220) are integrally composed, and said main frame (205) being made of a rigid material including at least one of carbon fiber, glass fiber, fiber reinforced plastic, or any known metal.
11. The frame member (200) for the saddle ride type vehicle as claimed in claim 1, wherein said frame member (200) includes a sub-frame (225) mounted to a pair of peripheral arms (220AR, 220AL) disposed on either lateral sides (RH, LH) of said main frame (205).
12. The frame member (200) for the saddle ride type vehicle as claimed in claim 1 or 11, wherein said second portion (220) includes a pair of peripheral arms (220AR, 220AL) that are disposed on the lateral sides of the second portion (220), said peripheral arms (220A) includes a front portion (220AF) connected to a lateral side(s) of said second portion (220) with a profile having receding thickness in a front portion and a rear portion (220AR) extends inclinedly rearward aligning with a front portion of the sub-frame (225).