Description:FIELD OF THE INVENTION
[1] The present invention relates to the field of a kick-start mechanism for two-wheeler vehicles and more particularly relates to an apparatus for a kick-start mechanism in two-wheeler passenger vehicles.

BACKGROUND OF THE INVENTION
[2] The following description provides the information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[3] Two-wheeler passenger vehicles are a critical mode of transportation worldwide, requiring efficient and user-friendly mechanisms to ensure ease of use and convenience for riders. One essential component of these vehicles is a kick-start mechanism, which traditionally requires considerable physical effort to operate. This effort-intensive process is particularly challenging for users with limited physical strength, making it an area ripe for innovation. Additionally, conventional kick-start mechanisms occupy a significant amount of space within a vehicle, which limits design flexibility and negatively impacts the vehicle's overall aesthetics.
[4] Traditional kick-start mechanisms operate using offset motion between gears, which tends to be jerky and demands considerable force from the user. While various mechanical adjustments and alternative gear configurations have been attempted to alleviate these issues, the improvements have been incremental and insufficient. Most existing solutions have focused on either reducing the effort required to start the vehicle or minimizing the space occupied by the mechanism, but rarely achieve both objectives effectively.
[5] Previous attempts to address these issues have focused on modifying lever mechanisms and altering gear configurations to reduce the effort required for the kick-start. While these approaches have offered some improvements, they generally fail to address both the effort required and the space occupancy effectively. Traditional designs often involve direct, offset motion between gears, leading to jerky operations and requiring substantial physical force. Furthermore, these mechanisms necessitate larger space within the vehicle assembly, which can compromise design and limit the utility of the vehicle.
[6] Despite these advancements, existing technologies continue to exhibit significant limitations. The primary constraints include the high physical effort needed to initiate the kick-start and the substantial space these mechanisms occupy. These limitations highlight the necessity for a more compact, efficient, and user-friendly solution that can address both issues simultaneously.
[7] Additionally, as the demographic of two-wheeler users expands to include more women, elderly individuals, and those with varying physical abilities, the demand for a user-friendly kick-start mechanism becomes more pressing. A mechanism that requires less physical exertion can make two-wheelers more accessible to a wider range of users, thereby broadening the market and enhancing the appeal of these vehicles. This inclusivity is not only a social benefit but also a strategic advantage for manufacturers looking to cater to a diverse customer base.
[8] Modern two-wheeler vehicles are increasingly being designed to be lighter, more compact, and aesthetically appealing. This trend underscores the importance of developing the kick-start mechanism that not only reduces the physical effort required but also integrates seamlessly into the streamlined design of contemporary vehicles. The challenge lies in creating a mechanism that is both effective in function and compact in form.
[9] Therefore, there is a need for a kick-start mechanism that will address the limitations as mentioned above.

SUMMARY OF THE INVENTION
[10] In accordance with an embodiment, an apparatus for a kick-start mechanism in two-wheeler passenger vehicles is disclosed. The apparatus includes a sun gear connected to a sun gear shaft. Further, a planet carrier is surrounding the sun gear and is configured to hold one or more planet gears. Further, a ring gear is adapted to mesh with the one or more planet gears. Further, a ratchet is configured to engage with the sun gear shaft and is connected to an engine crankshaft. Further, a ratchet guide spring is configured to facilitate the rotation and engagement of the ratchet. Further, a kicker shaft having one end attached to the planet carrier and the other end connected to a lever. Further, a return spring is mounted on the kicker shaft. The rotation of the planet carrier is adapted to rotate the sun gear which engages the ratchet to initiate the starting mechanism of the vehicle.
[11] In some embodiments, the planet carrier is adapted to hold at least three planet gears equidistantly spaced around the sun gear, to facilitate balanced load distribution and rotational motion by positioning the at least three planet gears at 120 degrees apart from each other and allow force transmission to the sun gear.
[12] In some embodiments, the ring gear is fixed to a transmission casing and adapted to mesh internally with the planet gears, providing a stationary outer boundary for the planet gears to engage, thereby allowing the planet gears to rotate around the sun gear when the planet carrier is actuated.
[13] In some embodiments, the ratchet guide spring biases the ratchet to engage with the sun gear shaft during a kick-start operation and ensure that the ratchet is aligned and engaged with the sun gear shaft by applying a force that maintains the ratchet in a correct position, preventing slippage and ensuring consistent engagement during the two-wheeler starting process.
[14] In some embodiments, the sun gear is centrally located and coaxial with the sun gear shaft, facilitating direct engagement with the ratchet by ensuring that the sun gear is adapted to transfer rotational motion directly to the ratchet.
[15] In some embodiments, the one or more planet gears are mounted on one or more planet gear carrier pins that allow them to rotate around the sun gear while being driven by the planet carrier, ensuring that as the planet carrier moves, the planet gears is adapted to drive to spin around the sun gear, converting the motion of the lever into rotational energy to start the engine.
[16] In some embodiments, the lever is adapted to actuate the kicker shaft, causing the planet carrier to rotate by transmitting the force applied by the user through the lever to the planet carrier, initiating the rotation of the planetary gear set.
[17] In some embodiments, the planetary gear set is adapted to convert the rotational motion of the lever into an enhanced torque output to the sun gear and ensuring that rotational energy is delivered to the sun gear to engage the ratchet and start the engine.
[18] In some embodiments, the ratchet transfers rotational motion from the sun gear shaft to the engine crankshaft to start the two-wheeler vehicle by functioning as a one-way clutch that engages with the sun gear shaft and allows the rotational motion to be transmitted to the crankshaft, thereby initiating the engine's starting process and preventing reverse rotation.
[19] In some embodiments, the planet carrier is adapted to rotate coaxially with the sun gear and the sun gear shaft, ensuring that all components move in a synchronized manner.
[20] In some embodiments, the kicker shaft is adapted to transmit rotational force from the lever to the planet carrier, serving as the connection between the lever and the planet carrier and transmitting the force applied by the user through the lever to drive the rotation of the planet carrier.
[21] In some embodiments, the apparatus includes circular clips to secure the planetary gear set within the assembly, preventing axial movement, and ensuring that the gears remain properly aligned and engaged during operation.
[22] In some embodiments, the return spring is adapted to return the kicker shaft to its initial position after the kick-start operation is completed, providing the necessary force to reset the kicker shaft automatically, ensuring that the mechanism is ready for the next use without requiring manual repositioning by the user.
[23] In this respect, before explaining at least one object of the invention in detail, it is to be understood that the invention is not limited in its application to the details of the set of rules and to the arrangements of the various models set forth in the following description or illustrated in the drawings. The invention is capable of other objects and of being practiced and carried out in various ways, according to the needs of that industry. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
[24] These together with other objects of the invention, along with the various features of novelty which characterize the invention, are pointed out with particularity in the disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS
[25] The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
[26] Figure 1 illustrates an isometric view of a kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[27] Figure 2 illustrates an exploded view of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[28] Figures 3A-3B illustrate rear views of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[29] Figure 4 illustrates a front view of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[30] Figure 5A illustrates a lever coupled to a sun gear of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[31] Figure 5B illustrates the lever coupled to a sun gear of the kick-start assembly apparatus depicting a ratchet guide spring coupled to a ratchet and a guide spring disposed beneath the sun gear, in accordance with an example embodiment of the present disclosure;
[32] Figure 6A illustrates a side view of the lever coupled to the sun gear of the kick-start assembly apparatus depicting the ratchet guide spring coupled to the ratchet, in accordance with an example embodiment of the present disclosure;
[33] Figure 6B illustrates a top view of the lever the kick-start assembly apparatus depicting the ratchet guide spring coupled to the ratchet and the guide spring disposed beneath the sun gear, in accordance with an example embodiment of the present disclosure;
[34] Figure 7 illustrates an isometric view of a planetary gear set of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[35] Figure 8 illustrates an isometric view of a planet gear carrier of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[36] Figure 9 illustrates an isometric view of a kicker shaft of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[37] Figure 10 illustrates an isometric view of the ratchet of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[38] Figure 11 illustrates an isometric view of the ratchet coupled with the ratchet guide spring of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[39] Figure 12 illustrates an isometric view of the ratchet guide spring, in accordance with an example embodiment of the present disclosure;
[40] Figure 13 illustrates an isometric view of the return spring of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[41] Figure 14 illustrates a top sectional view of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure;
[42] Figure 15 illustrates a schematic depicting internal mechanism of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure; and
[43] Figure 16 illustrates an isometric view of the kick-start assembly apparatus connected to a crankshaft of a vehicle, in accordance with an example embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE DRAWINGS
[44] Reference will now be made in detail to specific embodiments or features, examples of which are illustrated in the accompanying drawings. Wherever possible, corresponding, or similar reference numbers will be used throughout the drawings to refer to the same or corresponding parts. Moreover, references to various elements described herein, are made collectively or individually when there may be more than one element of the same type. However, such references are merely exemplary in nature. It may be noted that any reference to elements in the singular may also be construed to relate to the plural and vice-versa without limiting the scope of the disclosure to the exact number or type of such elements unless set forth explicitly in the appended claims.
[45] Some embodiments of this disclosure, illustrating all its features, will now be discussed in detail. The words “comprising,” “having,” “containing,” and “including,” and other forms thereof, are intended to be equivalent in meaning and be open-ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items or meant to be limited to only the listed item or items.
[46] It must also be noted that as used herein and in the appended claims, the singular forms “a,” “an,” and “the” include plural references unless the context dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, the preferred systems, and methods are now described.
[47] Embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings in which like numerals represent like elements throughout the several figures, and in which example embodiments are shown. Embodiments of the present disclosure may, however, be embodied in alternative forms and should not be construed as being limited to the embodiments set forth herein. The examples set forth herein are non-limiting examples and are merely examples among other possible examples.
[48] Embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings.
[49] The present disclosure provides an apparatus for a kick-start mechanism in vehicles, e.g., two-wheeler passenger vehicles. The apparatus for the kick-start mechanism in two-wheeler passenger vehicles includes a sun gear connected to a sun gear shaft. Further, a planet carrier surrounds the sun gear and is configured to hold one or more planet gears. Further, a ring gear is adapted to mesh with the one or more planet gears. Further, a ratchet is configured to engage with the sun gear shaft and is connected to an engine crankshaft. Further, a ratchet guide spring is configured to facilitate the rotation and engagement of the ratchet. Further, a kicker shaft has one end attached to the planet carrier and the other end connected to a lever. Further, a return spring is mounted on the kicker shaft. The rotation of the planet carrier is adapted to rotate the sun gear which engages the ratchet to initiate the starting mechanism of the vehicle.
[50] Figure 1 illustrates an isometric view of a kick-start assembly apparatus 100, in accordance with an example embodiment of the present disclosure. Figure 2 illustrates an exploded view of the kick-start assembly apparatus, in accordance with an example embodiment of the present disclosure. Figures 3A-3B illustrate rear views of the assembly 100, in accordance with an example embodiment of the present disclosure.
[51] Hereinafter, the kick-start assembly apparatus 100 or an apparatus for kick-start mechanism may be referred to as an assembly 100. The assembly 100 may comprise a housing 102 having a first side 102a and a second side 102b distal to the first side 102a. Further, the housing 102 may have a first portion 102c and a second portion 102d distal to the first portion 102c. The first side 102a may be adapted to be coupled to a transmission system (not shown) of a vehicle. The first side 102a may be adapted to define a first opening 104 within a periphery 106 between the first portion 102c and the second portion 102d of the first side 102a of the housing 102. Further, the second side 102b may be adapted to define a second opening 108 disposed towards the first portion 102c of the second side 102b of the housing 102. In an embodiment, the housing 102 may be screwed to the transmission system of the vehicle using one or more fasteners (not shown) within one or more holes disposed along the periphery 106 of the second side 102b of the housing 102. In an embodiment, the housing 102 may be defined as a clutch cover adapted to enclose the transmission system of the vehicle.
[52] The assembly 100 may comprise a sun gear 110 adapted to be mounted on sun gear shaft 112. Further, the assembly 100 may comprise a planet carrier 114 adapted to be surrounding the sun gear 110. In an embodiment, the planet carrier 114 may be adapted to hold one or more planet gears 116. Further, the assembly 100 may comprise a ring gear 118 adapted to be meshed with the one or more planet gears 116 within the planet carrier 114.
[53] Further, the assembly 100 may include a ratchet 120 having a ratchet guide spring 122. The ratchet 120 may be adapted to be engaged with the sun gear shaft 112 at one side via the ratchet guide spring 122. The ratchet 120 may be coupled to the crankshaft 144 as shown in Figures 14-16. The ratchet guide spring 122 may be adapted to facilitate the rotation and engagement of the ratchet 120.
[54] Further, the assembly 100 may include a kicker shaft 124 and a return spring 128. The kicker shaft 124 may have one end attached to the planet carrier 114 and the other end connected to a lever 130. In an embodiment the lever 130 may be referred to as a kicker lever or a kick lever. Further, the return spring 128 may be mounted on the kicker shaft 124.
[55] In an embodiment, rotation of the planet carrier 114 may be adapted to rotate the sun gear 110 which may engage the ratchet 120 to initiate the starting mechanism of the vehicle.
[56] Further, the assembly may include circular clips 132 adapted to secure a planetary gear set 700, i.e., the one or more planet gears 116, the ring gear 118, and the sun gear 110, within the assembly. In an embodiment, the circular clips 132 may prevent axial movement of the one or more planet gears 116 and ensure that the one or more planet gears 116 remain properly aligned over the planet carrier 114 and engaged with the ring gear 118 during operation.
[57] Further, the assembly 100 may include one or more planet gear carrier pins 134 disposed over the planet carrier 114, as illustrated in Figure 12. The one or more planet gears 116 may be mounted on the one or more planet gear carrier pins 134 that allow them to rotate around the sun gear 110 while being driven by the planet carrier 114. Therefore, as the planet carrier 114 may move, the one or more planet gears 116 may be adapted to drive to spin around the sun gear 110. The rotation of the one or more planet gears 116 around the sun gear 110 may convert the motion of the lever 130 into rotational energy to start the engine of the vehicle.
[58] Figure 4 illustrates a front view of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 5A illustrates the lever 130 coupled to the sun gear 110 of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 5B illustrates the lever 130 coupled to the sun gear 110 of the assembly 100 depicting the ratchet guide spring 122 connected to the ratchet 120 and the ratchet guide spring 122 disposed beneath the sun gear 110, in accordance with an example embodiment of the present disclosure.
[59] In an embodiment, the ring gear 118 may be fixed to a transmission casing, i.e., inner surface of the housing 102. The ring gear 118 may be adapted to mesh internally with the one or more planet gears 116. The ring gear 118 may be adapted to provide a stationary outer boundary for the one or more planet gears 116 to engage. The ring gear 118 may allow the one or more planet gears 116 to rotate around the sun gear 110 when the planet carrier 114 may be actuated.
[60] In the illustrated embodiment, the ratchet guide spring 122 may bias the ratchet 120 to engage with the sun gear shaft 112 during the kick-start operation. Further, the ratchet guide spring 122 may ensure that the ratchet 120 may be aligned and engaged with the sun gear shaft 112 by applying a force that maintains the ratchet 120 in a correct position. The force applied may prevent slippage of the ratchet 120 and ensure consistent engagement during the two-wheeler starting process.
[61] Figure 6A illustrates a side view of the lever 130 coupled to the sun gear 110 of the assembly 100 depicting the ratchet guide spring 122 coupled to the ratchet 120, in accordance with an example embodiment of the present disclosure. Figure 6B illustrates a top view of the lever, the assembly 100 depicting the ratchet guide spring 122 coupled to the ratchet 120 and the ratchet guide spring 122 disposed beneath the sun gear 110, in accordance with an example embodiment of the present disclosure.
[62] Figure 7 illustrates an isometric view of the planetary gear set 700, i.e., the one or more planet gears 116, the ring gear 118, and the sun gear 110 of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 8 illustrates an isometric view of the planet carrier 114 of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 9 illustrates an isometric view of a kicker shaft 124 of the assembly 100, in accordance with an example embodiment of the present disclosure.
[63] In the illustrated embodiment, the planet carrier 114 may be adapted to hold at least three planet gears 116 equidistantly spaced around the sun gear 110. The planet carrier 114 may be adapted to facilitate balanced load distribution and rotational motion by positioning the at least three planet gears 116 at 120 degrees apart from each other and allow force transmission to the sun gear 110.
[64] The sun gear 110 may be centrally located and coaxial with the sun gear shaft 112. The sun gear shaft 112 may facilitate direct engagement with the ratchet 120 by ensuring that the sun gear 110 may be adapted to transfer rotational motion directly to the ratchet 120.
[65] The assembly 100 may include kicker shaft 124. Further, the kicker shaft 124 having one end 124a attached to the planet carrier 114 and the other end 124b connected to the lever 130. Further, the return spring 128 may be mounted on the kicker shaft 124.
[66] In some embodiments, the lever 130 may be adapted to actuate the kicker shaft 124. The lever 130 may cause the planet carrier 114 to rotate by transmitting the force applied by the user through the lever 130 to the planet carrier 114. The rotation of the planet carrier 114 may initiate the rotation of the planetary gear set 700, i.e., the one or more planet gears 116, the ring gear 118, and the sun gear 110.
[67] The planetary gear set 700, i.e., the one or more planet gears 116, the ring gear 118, and the sun gear 110 may be adapted to convert the rotational motion of the lever 130 into an enhanced output revolutions-per-minute (RPM) to the sun gear 110 and ensuring that rotational energy is delivered to the sun gear 110 to engage the ratchet 120 and start the engine.
[68] The kicker shaft 124 may be an elongated shaft having stepped configuration. For instance, the one end 124a of the kicker shaft 124 may be stepped with different diameters to be coupled to the planet carrier 114. The other end 124b of the kicker shaft 124 may have a first cylindrical geared surface 136 and a second cylindrical geared surface 138 separated by a step 140. In an embodiment, the step 140 may be adapted to receive the return spring 128. The first cylindrical geared surface 136 may be coupled with the lever 130 and the second cylindrical geared surface 138 may be partially adapted to receive the return spring 128.
[69] Figure 10 illustrates an isometric view of the ratchet 120 of the kick-start assembly 100, in accordance with an example embodiment of the present disclosure. Figure 11 illustrates an isometric view of the ratchet 120 coupled with the ratchet guide spring 122 of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 12 illustrates an isometric view of the ratchet guide spring 122, in accordance with an example embodiment of the present disclosure. In an embodiment, the ratchet guide spring 122 may have a first portion 122a and a second portion 122b. The first portion 122a may be a circular-shaped ring that may be wound or wrapped around an outer surface of the ratchet 120. The second portion 122b may be an elongated U-shaped wire that may be adapted to guide the ratchet 120 during the operation of engaging with the crankshaft 144. Figure 13 illustrates an isometric view of the return spring 128 of the assembly 100, in accordance with an example embodiment of the present disclosure.
[70] In the illustrated embodiment, the ratchet 120 may be coupled to the crankshaft 144 of the engine of the vehicle. The ratchet 120 may facilitate motion from the planetary gear set 700, i.e., the one or more planet gears 116, the ring gear 118, and the sun gear 110.
[71] The ratchet 120 may transfer rotational motion from the sun gear shaft 112 to the engine crankshaft 144 to start the two-wheeler vehicle by functioning as a one-way clutch that engages with the sun gear shaft 112. The ratchet 120 may allow the rotational motion to be transmitted to the crankshaft 144, thereby initiating the engine's starting process and preventing reverse rotation.
[72] The planet carrier 114 may be adapted to rotate coaxially with the sun gear 110 and the sun gear shaft 112, ensuring that all components move in a synchronized manner.
[73] The kicker shaft 124 may be adapted to transmit rotational force from the lever 130 to the planet carrier 114, serving as the connection between the lever 130 and the planet carrier 114. The kicker shaft 124 may transmit the force applied by the user through the lever 130 to drive the rotation of the planet carrier 114.
[74] In one embodiment, the circular clip 132 may be provided to secure the planetary gear set within the assembly 100. The circular clip 132 may prevent axial movement and ensure that the one or more planet gears 116 remain properly aligned and engaged during operation.
[75] The return spring 128 may be adapted to return the kicker shaft 124 to an initial position after the kick-start operation is completed. The return spring 128 may provide the necessary force to reset the kicker shaft 124 automatically. The return spring 128 may ensure that the mechanism is ready for the next use without requiring manual repositioning by the user.
[76] Figure 14 illustrates a top sectional view of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 15 illustrates a schematic depicting internal mechanism of the assembly 100, in accordance with an example embodiment of the present disclosure. Figure 16 illustrates an isometric view of the assembly 100 connected to the crankshaft 144 of a vehicle, in accordance with an example embodiment of the present disclosure.
[77] In an embodiment, when the lever 130 may be pushed downward, the kicker shaft 124, through the leverage effect, may cause the one or more planet gears 116, i.e., three planet gears, to rotate and revolve around the sun gear 110. The rotation and revolution of the one or more planet gears 116 may occur due to the engagement with the ring gear 118. Subsequently, the rotational motion of the one or more planet gears 116 may be transmitted to the sun gear 110, causing rotation about the central axis. The sun gear shaft 112, which extends from the sun gear 110, may include spiral gear teeth. The ratchet 120 may be mounted onto the sun gear shaft 112, where the internal spiral teeth slide over the external spiral teeth of the sun gear shaft 112.
[78] In an embodiment, spiral gears may have a specialized purpose and functionality. The sun gear 110 may be constrained to only rotate and the ratchet 120 may be restricted to both linear motion and rotational motion.
[79] In the illustrated embodiment, a ratchet nut 142 may be affixed to the crankshaft 144 of the engine. Further, by transmitting the rotation of the crankshaft 144 through the ratchet nut 142, the crankshaft 144 moves the piston up and down to start the engine. Further, for disengagement of the ratchet 120 from the ratchet nut 142 may be required once the crankshaft 144 may start rotating at full revolutions per minute (RPM). The disengagement may be necessary to prevent continuous engagement during full RPM operation.
[80] In an embodiment, the sun gear shaft 112 may perform the function of facilitating disengagement. When the sun gear 110 may receive rotational motion from the one or more planet gears 116 via the planet carrier 114 and the lever 130, the sun gear 110 may rotate about the central axis, and the sun gear shaft 112 may also rotate. Initially, the ratchet 120 may slide along the sun gear shaft 112 until engagement with the ratchet nut 142 may be achieved. The sliding motion may occur due to the presence of the ratchet guide spring 122, which provides friction. The friction may prevent the ratchet 120 from rotating along the sun gear shaft 112 before reaching engagement, ensuring linear sliding instead.
[81] Further, when the ratchet 120 may slide and mesh with the teeth of the ratchet nut 142, as illustrated in Figures 14-16, the ratchet 120 may begin to rotate at the same RPM as the sun gear shaft 112. At this stage, the entire rotational motion of the sun gear shaft 112 may be converted into torque, which may be subsequently transferred to the crankshaft 144, resulting in the crankshaft’s 144 rotational motion. Further, the engine may be started through the operation of the planetary gear set 700, i.e., the one or more planet gears 116, the ring gear 118, and the sun gear 110.
[82] In an embodiment, once the engine starts, the ratchet 120 may return to an original position by bringing the lever 130 back to the starting position. The return spring 128 may be responsible for moving the lever 130 back to an initial position.
[83] In an embodiment, the ratchet guide spring 122 may slide within the guide to travel with the ratchet 120. The frictional force from the ratchet guide spring 122 may be overcome by the torque generated from the assembly 100.
[84] The benefits and advantages which may be provided by the present invention have been described above with regard to specific embodiments. These benefits and advantages, and any elements or limitations that may cause them to occur or to become more pronounced are not to be construed as critical, required, or essential features of any or all of the embodiments.
[85] While the present invention has been described with reference to particular embodiments, it should be understood that the embodiments are illustrative and that the scope of the invention is not limited to these embodiments. Many variations, modifications, additions, and improvements to the embodiments described above are possible. It is contemplated that these variations, modifications, additions, and improvements fall within the scope of the invention. , Claims:We Claim:
1. An apparatus (100) for a kick-start mechanism in vehicles, the apparatus (100) comprising:
a sun gear (110) connected to a sun gear shaft (112);
a planet carrier (114) surrounding the sun gear (110) and holding one or more planet gears (116);
a ring gear (118) adapted to mesh with the one or more planet gears (116);
a ratchet (120) engaged with the sun gear shaft (112) and connected to an engine crankshaft (144);
a ratchet guide spring (122) facilitating the rotation and engagement of the ratchet (120);
a kicker shaft (124) with one end attached to the planet carrier (114) and the other end connected to a lever (130); and
a return spring (128) mounted on the kicker shaft (124) ;
wherein rotation of the planet carrier (114) is adapted to rotate the sun gear (110), which engages the ratchet (120) to initiate the starting mechanism of the vehicle.

2. The apparatus (100) as claimed in claim 1, wherein the planet carrier (114) is adapted to hold the one or more planet gears (116) equidistantly spaced around the sun gear (110), to facilitate balanced load distribution and rotational motion by positioning the one or more planet gears (116) at 120 degrees apart from each other and allow force transmission to the sun gear (110).

3. The apparatus (100) as claimed in claim 1, wherein the ring gear is fixed to a transmission casing and adapted to mesh internally with the one or more planet gears (116), providing a stationary outer boundary for the one or more planet gears (116) to engage, thereby allowing the one or more planet gears (116) to rotate around the sun gear (110) when the planet carrier (114) is actuated.

4. The apparatus (100) as claimed in claim 1, wherein the ratchet guide spring (122) biases the ratchet (120) to engage with the sun gear shaft (112) during the kick-start operation and ensure that the ratchet (120) is aligned and engaged with the sun gear shaft (112) by applying a force that maintains the ratchet (120) in a correct position.

5. The apparatus (100) as claimed in claim 1, wherein the sun gear (110) is centrally located and coaxial with the sun gear shaft (112), facilitating direct engagement with the ratchet (120) by ensuring that the sun gear (110) is adapted to transfer rotational motion directly to the ratchet (120).

6. The apparatus (100) as claimed in claim 1, wherein the one or more planet gears (116) are mounted on one or more planet gear carrier pins (134) that allow them to rotate around the sun gear (110) while being driven by the planet carrier (114), ensuring that as the planet carrier (114) moves, the one or more planet gears (116) is adapted to drive to spin around the sun gear (110), converting the motion of the lever (130) into rotational energy to start the engine.

7. The apparatus (100) as claimed in claim 1, wherein the lever (130) is adapted to actuate the kicker shaft (124), causing the planet carrier (114) to rotate by transmitting the force applied by the user through the lever (130) to the planet carrier (114), initiating the rotation of the planetary gear set.

8. The apparatus (100) as claimed in claim 1, wherein the planetary gear set is adapted to convert the rotational motion of the lever (130) into an enhanced output rpm to the sun gear (110), and ensuring that rotational energy is delivered to the sun gear (110) to engage the ratchet (120) and start the engine.

9. The apparatus (100) as claimed in claim 1, wherein the ratchet (120) transfers rotational motion from the sun gear shaft (112) to the engine crankshaft (144) to start the two-wheeler vehicle by functioning as a one-way clutch that engages with the sun gear shaft (112) and allows the rotational motion to be transmitted to the crankshaft (144), thereby initiating the engine's starting process.

10. The apparatus (100) as claimed in claim 1, wherein the planet carrier (114) is adapted to rotate coaxially with the sun gear (110) and the sun gear shaft (112) in a synchronized manner.

11. The apparatus (100) as claimed in claim 1, wherein the kicker shaft (124) is adapted to transmit rotational force from the lever (130) to the planet carrier (114), serving as the connection between the lever (130) and the planet carrier (114) and transmitting the force applied by the user through the lever (130) to drive the rotation of the planet carrier (114).

12. The apparatus (100) as claimed in claim 1, comprising:
a circular clip (132) to secure the planetary gear set within the assembly, preventing axial movement and ensuring that the gears remain properly aligned and engaged during operation.

13. The apparatus (100) as claimed in claim 1, wherein the return spring (128) is adapted to return the kicker shaft (124) to its initial position after the kick-start operation is completed, providing the necessary force to reset the kicker shaft (124) automatically, ensuring that the mechanism is ready for the next use without requiring manual repositioning by the user.