A gear shifting device of a vehicle

Abstract

A gear shifting device (100) is disclosed. The device (100) includes a bracket (1) 5 connectable to a body frame of the vehicle, and a lever (4) operable in a swingable manner by the rider, for shifting of gears. The device (100) further includes an adjustable arm (8) connected to the lever (4). A gear shift spindle (10) is connected to the adjustable arm (8) via a shift component (11). The adjustable arm (8) includes a pair of eyelets (15, 16) coupled together by a connecting rod (17). An eye (15a, 16a) portion 10 of each of the pair of the eyelets (15, 16) include a spherical bearing (24). Provisioning the adjustable arm (8) and the shift component (11), in the device (100), prevents sticking, reduces and / or substantially eliminates play or chatter, whereby preventing increasing the magnitude of swing length of the lever (4), during gear shifting operation. 15 To be published with FIG. 2 PCT2666

Description

‘A GEAR SHIFTING DEVICE OF A VEHICLE’TECHNICAL FIELD

[0001] The present disclosure relates in general to vehicles, for example, a two wheeler vehicle. More particularly, the present disclosure relates to a gear shifting device of the vehicle.BACKGROUND

[0002] The information in this section merely provides background information related to the present disclosure and may not constitute prior art(s) for the present disclosure.

[0003] Vehicles such as, but not limited to, motorized scooters, motorcycles, etc., among other components and assemblies include body frame, a power unit such as, but not limited to, an internal combustion engine, a passenger seating area, a storage space, a set of wheels and a gear shifting device configured to shift gears in a gear box / assembly of the vehicle. The gear shifting device includes a foot operated lever (also referred to as gear change pedal) interfaced / connected to a shifter shaft (also referred to as a gear shift spindle) of the gear box. The foot operated lever is usually operated by a left foot of the rider, to shift gears, which in turn varies torque supplied to wheels of the vehicle.

[0004] In conventional configurations, the foot operated lever, usually, includes a first portion operable by toe of the rider (i.e., the toe portion) and a second portion operable by heel ofthe rider (i.e., the heel portion). In some configurations, the elongate member may only include the toe portion, without the heel portion. An intermediate portion (in case of the lever including both the toe and heel portions) or an end portion (in case of the lever including only the toe portion), is interfaced with the shifter shaft configured to shift gears. The toe portion and the heel portions may include crossbars covered by cushion, for ergonomics. In some conventional configurations, the crossbar is not a separate member, rather ends of the elongate member itself is bent at a substantially perpendicular angle, to form the crossbar.

[0005] In existing configurations, at an interface region, where the foot operated lever is connected / interfaced with the shifter shaft, there arises a problem of ‘sticking’, during gear shifting operation. Sticking can be termed as impediment / resistance generated atthe interface / connecting region of the foot operated lever and the shifter shaft, during shifting of gears. That is, while the rider tries to shift gears by application of force on the crossbar, the shifter shaft exhibits an opposing / resisting force. Such resisting force is usually generated due to manufacturing limitations, where the foot operated lever is not connected in a perfectly perpendicular fashion, owing to manufacturing tolerances. Further, the conventional gear shift device is made of metallic alloys which may lead to high manufacturing cost and process.

[0006] In addition to the above, there also exists problem of play (play around or machine chatter), due to vibration transmitted by the shifting shaft. Such play or chatter leads to misalignment and / or loosening of connection between the foot operated lever and the shifter shaft. Further, said play or chatter results in increasing the magnitude of swing length, by which the foot operated lever is to be operated, during shifting of gears. For instance, the swing length may increase from 5 mm to 8 mm or 10 mm, which is undesirable and risky.

[0007] The present disclosure is directed to overcome one or more limitations stated above or any other limitations associated with the prior art.SUMMARY

[0008] One or more shortcomings of the prior art are overcome by a gear shifting device for a two-wheeled vehicle as claimed and additional advantages are provided through the two-wheeled vehicle including the gear shifting device as claimed in the present disclosure. Additional features and advantages are realized through the techniques of the present disclosure. Other embodiments and aspects of the disclosure are described in detail herein and are considered a part of the claimed disclosure.

[0009] In one non-limiting embodiment of the present disclosure, a gear shifting device of a two-wheeled vehicle [also referred to as the ‘vehicle’ hereinafter] is disclosed. The gear shifting device includes a bracket connected to a body frame of the two-wheeled vehicle. The gear shifting device further includes a lever swingably coupled to the bracket. The gear shifting device further includes an adjustable arm coupled to the lever. The adjustable arm is coupled to translate and reciprocate along an axis thereof, upon swingably operating the lever. The adjustable arm includes a connecting rod extending along the a first axis of the adjustable arm. The adjustable arm further includes a firsteyelet connected to a first end of the connecting rod. The adjustable arm further includes a second eyelet connected to a second end of the connecting rod. Further, the first eyelet and the second eyelet is made of resin. The adjustable arm further includes a shift component connected to an end of the adjustable arm. The shift component is configured to operate a gear shift spindle. The gear shift spindle is interfaced with a gear box assembly of the two wheeled vehicle. The constructional features of the gear shifting device as described above is configured to overcome the problem of sticking during gear shifting operation. Further, by connecting the adjustable arm between the gear shift spindle and the lever, it avoids the resistance [repulsive force] generated at the interface region of gear shift spindle and the lever.

[0010] In an embodiment, the shift component is configured to convert reciprocating motion of the adjustable arm into a rotary motion thereof, to operate the gear shift spindle.

[0011] In an embodiment, the adjustable arm includes a fastening member positioned at an intermediate portion of connecting rod. The fastening member is integrally formed with the connecting rod. Further, the fastening member is configured to selectively vary operational length of the connecting rod. The connecting rod, extending along the first axis of the adjustable arm, helps in varying the effective operational length of the connecting rod, upon torquing of the fastening member formed at an intermediate portion of the connecting rod.

[0012] In an embodiment, the first eyelet includes a first eye and a first shank defined with internal threads. The second eyelet includes a second eye and a second shank defined with internal threads. The eyelets include eyes and shanks. The shanks are defined with internal threads to facilitate the threaded connection with the connecting rod.

[0013] In an embodiment, each of the first end and the second end of the connecting rod, is defined with external threads. Further the said external threads configured to threadedly engage with the first shank and the second shank. That is, the end portions are defined with external threads configured to engage with internal threads of the shanks.

[0014] In an embodiment, the gear shifting device includes a mounting member coupled to the bracket. The gear shifting device further includes a footrest pivotally connected to the mounting member. Here, the footrest is pivotally connected so as to be selectively adjustable, to be moved between deployed and retraced positions.

[0015] In an embodiment, the adjustable arm includes the fastening members. The fastening members are disposed on threads defined on each of the first end and the second end of the connecting rod. Further, the fastening members is configured to limit movement of the first eyelet and the second eyelet over the connecting rod. Such configuration helps in varying effective operational length of the connecting rod.

[0016] In an embodiment, the adjustable arm includes a proximal end configured to be coupled to the lever. The adjustable arm further includes a distal end configured to be coupled to the shift component. That is, the adjustable arm is connected to the lever and the shift component.

[0017] In an embodiment, each of the first eye and the second eye include a spherical bearing. The spherical bearing includes an outer ring and an inner ring. The inner ring is disposed within the outer ring. Further, the inner ring is configured to rotate relative to the outer ring. The spherical bearing is made from at least any one of a metallic material and a resinous material. The spherical bearing includes the inner ring and the outer ring, with outer ring configured to have relative motion with the inner ring.

[0018] In an embodiment, the inner ring and outer ring is configured to form a heim joint for articulation and adjustability. The inner ring being defined with a hole at the center thereof. The inner ring is configured to have rotational movement with respect to the outer ring, to compensate for angular misalignment and rocking motion.

[0019] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.BRIEF DESCRIPTION OF FIGURES

[0020] The novel features and characteristics of the disclosure are set forth in the appended disclosure and in the appended claims. The disclosure itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following description of an illustrative embodiment when read in conjunction with the accompanying figures. One or more embodiments are now described, by way of example only, with reference to the accompanying figures wherein like reference numerals represent like elements and in which:

[0021] Figure 1 illustrates a gear shifting device, in accordance with an embodiment of the present disclosure;

[0022] Figure 2 illustrates an exploded view of the gear shifting device of the Figure 1;

[0023] Figure 3 illustrates a perspective view of the device of the Figure 1;

[0024] Figure 4 illustrates another perspective view of the device, albeit without a bracket of the device of the Figure 1;

[0025] Figure. 5a and 5b illustrate a top perspective and a side perspective views of an adjustable arm of the device of the Figure 1;

[0026] Figure. 6 illustrates another perspective view of the adjustable arm (in exploded view) of the Figures 5a and 5b;

[0027] Figure. 7 illustrates the device of the Figure 1 in a top perspective view, albeit without the bracket; and

[0028] Figure. 8 illustrates another top perspective view of the device of the Figure 1, including the bracket, in accordance with an embodiment of the present disclosure.

[0029] The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description thatalternative embodiments of the frame illustrated herein may be employed without departing from the principles of the disclosure described herein.DETAILED DESCRIPTION

[0030] While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the FIG 1-8 and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure.

[0031] Before describing detailed embodiments, it may be observed that the novelty and inventive step that are in accordance with the present disclosure resides in a gear shifting device (also referred to as a gear changing device) of vehicle. However, such modifications should be construed within the scope of the present disclosure. Accordingly, the drawings are showing only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the disclosure with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

[0032] In the present disclosure, the term “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any embodiment or implementation of the present subject matter described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0033] The terms “comprises”, “comprising”, or any other variations thereof used in the disclosure, are intended to cover non-exclusive inclusions, such that an apparatus, device, assembly, mechanism, system, and method that comprises a list of components does not include only those components but may include other components not expressly listed or inherent to such apparatus, system, assembly, or device. In other words, one or more elements in a system proceeded by “comprises... a” does not, without more constraints, preclude the existence of other elements or additional elements in the system or apparatus or method.

[0034] The terms like “at least one” and “one or more” may be used interchangeably or in combination throughout the description.

[0035] While the present disclosure is illustrated in the context of a two-wheeled vehicle, however, the body frame, seating arrangement resulting from employing such body frame, and aspects and features thereof can be used with other type of vehicles as well. The terms “modular vehicle”, “vehicle”, “two-wheeled vehicle”, “electric vehicle”, “battery operated vehicle”, “EV” and “motorcycle”, “bike”, “motorbike” have been interchangeably used throughout the description. The term “vehicle” comprises vehicles such as motorcycles, scooters, bicycles, mopeds, scooter type vehicle, and the like. Further, the term “vehicle” may also include vehicles such as three-wheeled vehicle, all-terrain vehicles (ATV) and the like, without limiting scope of the present disclosure.

[0036] The terms “front / forward”, “rear / rearward / back / backward”, “up / upper / top”, “down / lower / lower ward / downward, bottom”, “left / leftward”, “right / rightward” used therein represents the directions as seen from a vehicle driver sitting astride.

[0037] While the present disclosure is illustrated in the context of a modular vehicle, however, the aspects and features thereof can be used with other type of vehicles as well. The terms “vehicle”, “two-wheeled vehicle”, “electric vehicle”, “EV”, “modular vehicle” and “motorcycle” have been interchangeably used throughout the description. The term “vehicle” comprises vehicles such as motorcycles, scooters, bicycles, mopeds, scooter type vehicle, and the like. Further, the terms “front / forward”, “rear / rearward / back / backward”, “up / upper / top”, “down / lower / lower ward / downward, bottom”, used therein represents the directions as seen from a vehicle driver sitting astride.

[0038] Reference will now be made to the exemplary embodiments of the disclosure, as illustrated in the accompanying drawings. Wherever possible, same numerals will be used to refer to the same or like parts. Embodiments of the disclosure are described in the following paragraphs with reference to FIG. l to 8. In Figures. 1 to 8, the same element or elements which have same functions are indicated by the same reference signs.

[0039] Figure 1 illustrates a gear shifting device (100) in accordance with an exemplary embodiment of the present disclosure. The gear shifting device (100) is also simply referred to as the ‘device’ (100) hereinafter. The device (100) is a assembly comprising of various components illustrated in the Figure 1. An exploded view of the device (100) is illustrated in the Figure 2. The components comprised in the device (100) may also include sub-assemblies at the component level. Furthermore, Figure 3 illustrates a perspective view of the device (100). The device (100) is now described with reference to Figures 1 to 3.

[0040] The device (100) includes a bracket (1) connectable to a body frame (also not shown in the Figures) of the vehicle (not shown in the Figures). The bracket (1) includes a mounting member (2), that may be C-shaped [which is also referred to as a C-shaped mounting member hereinafter] that is configured to be mounted upon with a footstep(3) [also referred to as the ‘footrest (3)’ hereinafter]. The footstep (3) is pivotally coupled to the C-shaped mounting member (2). The device (100) further includes a lever (4) that may be configured to be operable by a foot of the rider. The lever (4) is also referred to as a foot pedal or a gear change pedal. The lever (4) is configured to be operated by a toe of the rider, while the rider’s heel is rested / placed on the footstep (3). Figure 4 illustrates another perspective view of the device (100), albeit without the bracket (1). The lever (4) is operable in a swingable manner by the rider, for shifting of gears. The lever (4) is swingably coupled to the bracket (1) by means of a first set of fastening members (5a, 5b and 5c), illustrated in the Figure 2.

[0041] The device (100) further includes an adjustable arm (8) connected to the lever(4). The adjustable arm (8) is also referred to as the ‘arm’ (8) hereinafter. The arm (8) is also referred to as tie rod. The arm (8) is coupled to the lever (4), at an intermediate portion of the lever (4). A proximal end (9) [or a first end] of the arm (8) is coupled to the lever (4), by means of a second set of fastening member (6a, 6b). In a preferred embodiment, the adjustable arm (8) is made of hard plastic material.

[0042] The device (100) further includes a gear shift spindle (10). The gear shift spindle (10) is also referred to as the spindle (10) hereinafter. The gear shift spindle (10) is also referred to as the ‘spindle’ (10). The spindle (10) is interfaced with an gear box assembly (not shown in the Figures) of the vehicle. The spindle (10) may be consideredpart of the gear box assembly, and acts an a force transmission member between the lever (4) and / or arm (8) and the gear box assembly. The spindle ( 10) is connected to the arm (8) via an arm gear shift component (11) [also referred to as the ‘shift component’ (11) hereinafter], A distal end (12) [or a second end] of the arm (8) is coupled to the shift component (11), by means of a third set of fastening member (7a, 7b). A first end (13) ofthe shift component (11) is coupled to the distal end (12) ofthe arm (8). Further, a second end (14) of the shift component (11) is coupled to the spindle (10). The first end (13) and the second end (14) of the shift component (11) lie along different planes that are parallel to each other. That is, while the first end (13) lies on third axis (27), the second end (14) lies on fourth axis (28), that are parallel to each other.

[0043] As can be seen and construed from the Figures 1 to 3 described above, swingable movement of the lever (4), operates the arm (8) in a reciprocating manner (in an up and down direction, although in an inclined plane). Such reciprocating motion of the arm (8) in turn operates the shift component (11) in a rotary motion. Said rotary motion of the shift component (11) in turn rotates the spindle (10), to effect shifting of gear in the gear box assembly.

[0044] Figures 5a and 5b illustrate a top perspective and a side perspective views of the arm (8), in accordance with an exemplary embodiment of the present disclosure. Further, Figure 6 illustrates another perspective view of the arm (8) of the Figures 5a and 5b. The arm (8) is now described with reference to the Figures 5a, 5b and 6. The arm (8) is sub-assembly level component including a pair of eyelets (15, 16) coupled together by a connecting rod (17). The connecting rod (17) and the pair of eyelets (15, 16) are defined with threads to have threaded connection therebetween. In an illustrative embodiment, the arm (8) includes two eyelets i.e. a first eyelet (15) and a second eyelet (16).

[0045] Each of the pair of the eyelets (15, 16) includes an eye (15a, 16a) and shank (15b, 16b) extending from the eye (15a, 16a). The shank (15b, 16b) of the each of the pair of eyelets (15, 16) is defined with internal threads. In the illustrative embodiment, the first eyelet (15) includes a first eye (15a) and a first shank (15b) defined with the internal threads, to facilitate the threaded connection with the connecting rod (17). Further, the second eyelet (16) includes a second eye (16a) and a second shank (16b)defined with the internal threads. Correspondingly, both ends (18, 19) of the connecting rod (17) [i.e., the ends configured to be coupled or to be threadedly connected with the shank (15b, 16b)] is defined with external threads. In the illustrative embodiment, the connecting rod (17) of the arm (8) includes two ends i.e. a first end (18) and the second end (19) defined with external threads. In an embodiment, the pair of the eyelets (15, 16) includes an eye (15a, 16a) and shank (15b, 16b) may be made of polymeric material. In an embodiment, the pair of the eyelets (15, 16) includes an eye (15a, 16a) and shank (15b, 16b) may be made of hard polymeric or hard plastic material. In an embodiment, the connecting rod (17) may be made of metallic material, such as, steel, stainless steel, metallic alloys, steel alloys, and the like. The connecting rod (17) may be made of metallic material that is suitable for catering to strength and load bearing requirements of the connecting rod (17), during operation.

[0046] In the illustrative embodiment of the Figures 5 and 6, the first shank (15b) of the eyelet (15) is defined with internal threads that run in a clockwise direction. Correspondingly, the first end (18) of the connecting rod (17) is defined with external threads that run in the clockwise direction. Similarly, the shank (16b) of the eyelet (16) is defined with internal threads that run in a counter clockwise direction, to facilitate threaded connection therebetween. Correspondingly, the second end (19) of the connecting rod (17) is defined with external threads that run in the counter clockwise direction, to facilitate threaded connection therebetween.

[0047] The connecting rod (17) further includes a fastening member (20) positioned at an intermediate portion of the connecting rod (17). The fastening member (20) may be integrally formed with the connecting rod (17) [may be welded to the connecting rod (17)], such that the fastening member (20) and the connecting rod (17) do not have any relative motion therebetween. Accordingly, torquing the fastening member (20) by a torquing tool (such as a spanner or a plier), would in turn rotate the connecting rod (17) along a first axis (21). The first axis (21) may also be referred to as a longitudinal (lengthwise) axis (21) of the connecting rod (17). The connecting rod (17), extending along the first axis (21) of the adjustable arm (8), helps in varying the effective operational length of the connecting rod (17), upon torquing of the fastening member (20) formed at an intermediate portion of the connecting rod (17).

[0048] The arm (8) further includes a pair of fastening members (22, 23) disposed on threaded portions of the first end (18) and the second end (19) of the connecting rod (17). The pair of fastening members (22, 23) can be operated independent of each other, to vary operational length (effective length) of the connecting rod (17) threadedly accommodated in the shank (15b, 16b) of the pair of the eyelets (15, 16). Torquing the fastening member (22) varies operational length of the connecting rod (17) threadedly accommodated within the first shank (15b). Similarly, torquing the fastening member (23) varies operational length of the connecting rod (17) threadedly accommodated within the shank (16b). On the other hand, torquing the fastening member (20) varies operational length of the connecting rod (17) threadedly accommodated within the shank (15b, 16b), on either sides, simultaneously.

[0049] The eye (15a, 16a) portion of each of the pair of the eyelets (15, 16) include a spherical bearing (24). The spherical bearing (24) is made up of an inner ring (24a) and an outer ring (24b). The spherical bearing (24) including the inner ring (24a) and the outer ring (24b) may be configured to form a join similar to a heim joint, for articulation and adjustability. The inner ring (24a) may be a spherical member (ball) defined with a hole (25) at the centre thereof. The inner ring (24a) may be concentrically confined within the circumference of the outer ring (24b). In an embodiment, the inner ring (24a) and the outer ring (24b) may be made up of hard polymeric material or hard plastic material. The inner ring (24a) and the outer ring (24b) may be configured to have relative motion therebetween. That is, the inner ring (24a) is configured to have rotational movement with respect to the outer ring (24b), to compensate for the angular misalignment and rocking motion.

[0050] Figure 7 illustrates the device ( 100) in a top perspective view, albeit without the bracket (1). Similarly, Figure 8 is another top perspective view of the device (100) including the bracket (1). With reference to the Figures 7 and 8, the arm (8) is disposed in a substantially straight line alignment between the shift component (11) and the lever (4), along second axis (26). Both ends of the arm (8), that is both the proximal end (9) and the distal end (12) is disposed along the second axis (26), to have a substantially straight line (in-line) alignment therebetween. The arm (8) is sufficiently torqued at both ends (9 and 12) thereof in a manner such that there exists no and / or minimal relative movement therein. That is, there exists no and / or minimal relative movementbetween the arm (8) and the shift component (11), the lever (4). However, during operation, if there arises a minor relative movement (which may be due to manufacturing and assembly tolerances, such as minor horizontal movement along third axis (27) or angular misalignment therebetween, the spherical bearing (24) accommodates such relative movement, without affecting gear shifting operation.

[0051] In an embodiment, the device (100) of the present disclosure overcomes the problem of ‘sticking’ and play / chatter of the lever (4). The aspect of providing arm (8) between the shift component (11) and the lever (4), overcomes the problem of ‘sticking’, during gear shifting operation. Further, impediment / resistance generated at the interface / connecting region of the lever (4) and the >v. _z, „ direct coupling / connection between the lever (4) and the spindle (10), is prevented by the arm (8). The aspect of provisioning the arm (8) and the shift component (11), in the device (100), reduces and / or substantially eliminates play or chatter, whereby preventing increasing the magnitude of swing length of the lever (4), during gear shifting operation. Further, the adjustable arm (8), by virtue of being made of hard plastic material, leads to low manufacturing costs and is of light weight.

[0052] The various embodiments of the present disclosure have been described above with reference to the accompanying drawings. The present disclosure is not limited to the illustrated embodiments; rather, these embodiments are intended to fully and completely disclose the subject matter of the disclosure to those skilled in this art. In the drawings, like numbers refer to like elements throughout. Thicknesses and dimensions of some components may be exaggerated for clarity.

[0053] Herein, the terms “attached”, “connected”, “interconnected”, “contacting”, “mounted”, “coupled” and the like can mean either direct or indirect attachment or contact between elements, unless stated otherwise.

[0054] Well-known functions or constructions may not be described in detail for brevity and / or clarity. As used herein the expression “and / or” includes any and all combinations of one or more of the associated listed items.

[0055] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein,the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises”, “comprising”, “includes” and / or “including” when used in this specification, specify the presence of stated features, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, operations, elements, components, and / or groups thereof.

[0056] While considerable emphasis has been placed herein on the particular features of this disclosure, it will be appreciated that various modifications can be made, and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other modifications in the nature of the disclosure or the preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.EQUIVALENTS

[0057] With respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.

[0058] It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits anyparticular claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and / or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system (100) having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc.). In those instances where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system (100) having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B.”

[0059] In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.

[0060] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspectsand embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope being indicated by the following claims.

Claims

We Claim:

1. A gear shifting device (100) of a two-wheeled vehicle (200), comprising: a bracket (1) connected to a body frame of the two-wheeled vehicle (200); a lever (4) swingably coupled to the bracket (1); an adjustable arm (8) coupled to the lever (4), the adjustable arm (8) being configured to translate and reciprocate along an axis thereof, upon swingably operating the lever (4), the adjustable arm (8) comprising: a connecting rod (17) extending along a first axis (21) of adjustable arm (8); a first eyelet (15) connected to a first end (18) of the connecting rod (17); a second eyelet (16) connected to a second end (19) of the connecting rod (17) and wherein the first eyelet (15) and the second eyelet (16) is made of resin; and a shift component (11) connected to an end of the adjustable arm (8), the shift component (11) configured to operate a gear shift spindle (10) interfaced with a gear box assembly of the two wheeled vehicle (200).

2. The gear shifting device (100) as claimed in claim 1, wherein the shift component (11) is configured to convert reciprocating motion of the adjustable arm (8) into a rotary motion thereof, to operate the gear shift spindle (10).

3. The gear shifting device (100) as claimed in claim 1, wherein the adjustable arm (8) comprises: a fastening member (20) positioned at an intermediate portion of connecting rod (17), the fastening member (20) being integrally formed with the connecting rod (17), and the fastening member (20) configured to selectively vary operational length of the connecting rod (17).

4. The gear shifting device (100) as claimed in claim 1, wherein the first eyelet (15) includes a first eye (15a) and a first shank (15b) defined with internal threads, and wherein the second eyelet (16) includes a second eye (16a) and a second shank (16b) defined with internal threads.

5. The gear shifting device (100) as claimed in claim 1, wherein each of the first end (18) and the second end (19) being defined with external threads, said external threads configured to threadedly engage with the first shank (15b) and the second shank (16b).

6. The gear shifting device (100) as claimed in claim 1, comprises: a mounting member (2) coupled to the bracket (1); and a footrest (3) pivotally connected to the mounting member (2).

7. The gear shifting device (100) as claimed in claim 1, wherein the adjustable arm (8) includes the fastening members (22, 23) disposed on threads defined on each of the first end (18) and the second end (19) of the connecting rod (17), and wherein the fastening members (22, 23) being configured to limit movement of the first eyelet (15) and the second eyelet (16) over the connecting rod (17).

8. The gear shifting device (100) as claimed in claim 1, wherein the adjustable arm (8) comprises: a proximal end (9) configured to be coupled to the lever (4); and a distal end (12) configured to be coupled to of the shift component (11).

9. The gear shifting device (100) as claimed in claim 1, wherein each of the first eye (15a) and the second eye (16a) include a spherical bearing (24), wherein the spherical bearing (24) includes an outer ring (24b), and an inner ring (24a) disposed within the outer ring (24b), the inner ring (24a) being configured to rotate relative the outer ring (24b), and wherein the spherical bearing (24) is made from at least any one of a metallic material and a resinous material.

10. The gear shifting device (100) as claimed in claim 9, wherein the inner ring (24a) and the outer ring (24b) being configured to form a heim joint for articulation and adjustability, wherein inner ring (24a) being defined with a hole (25) at the center thereof.

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