Description:DUAL AXIS SHIFTING FORK AND THE METHOD OF OPERATING THEREOF
FIELD OF INVENTION
The present invention relates to a Dual axis shifting fork to engage or disengage the gears which is in two different Axis. In particular, the invention relates to designing of two shifting gears in which one gear shifted to engagement other gear should not contact with rotating parts and vice-verse. Moreover the present invention also relates to the method of operating the dual axis fork defines the neutral condition, Mid PTO condition, and the rear PTO condition, wherein when one gear is engaged the other gear is not in contact with the rotating parts and vice-versa.
BACKGROUND OF INVENTION

Generally if the gears which needs to be shift in order to engage or disengage the drive are in two different axes, generally proceed for two shifting systems for each axis. But this concept complicated and also requires more cost for two shifting systems. Two different PTO drives available in compact tractor. One is rear live PTO, in which drive is taken from rear side of tractor. Other one is mid PTO in which drive is taken from rear bottom (Towards front direction) of the tractor. Rear Live PTO is single gear pair system, in which sliding gear provides in (output) shaft. Mid PTO is three gear pair (four gear mesh) system, in which sliding gear provided in driving (input) shaft.

JP05066109B2 relates to provide a transmission for a tractor, operating for speed change a single shift fork acting on the first transmission and the second transmission by a single speed change operation tool. SOLUTION: This transmission for the tractor includes the speed changing shift fork 50 provided with: the first engaging recessed part 50a fit around the first shift sleeve S6, in the first shift fork part 50A for operating for speed change a super deceleration mechanism 16; and the second engaging recessed part 50b fit around the second shift sleeve S7, in the second shift fork part 50B for operating for speed change an overdrive mechanism 45. A common leg portion 50e engaged with the first shift sleeve S6 and the second shift sleeve S7 is formed in an intermediate position between the first engaging recessed part 50a and the second engaging recessed part 50b.
CN105318002B relates to a dual-shifting fork, the two shifting fork comprises a sliding fork and a rotating fork, rotating is rotatable connected to the sliding fork. A pair of pad members arranged in sliding fork on the inner side of the two ends. The sleeve is arranged on the inner side of the slide fork and the pad member. Underlay component in the rotating fork simultaneously engage with the sliding fork and a rotary fork on the inner side of the two ends. When independently moving the slide fork sleeve, rotary fork rotates at a predetermined angle relative to the sliding fork.
CN201660753U relates to an embroidery machine, especially a two-shaft double bright piece shifting fork device, wherein the output end of a driving gear is coupled with a motor plate; a shifting mechanism is fixed on the motor plate; the driving gear comprises a step motor and a transmission mechanism; the input end of the transmission mechanism is coupled with the output end of the step motor, while the output end thereof is coupled with the motor plate; the transmission mechanism comprises two track shafts, a plug plate, a fixed plate and a transmission plate; the plug plate is fixed on one side of a drive plate; the fixed plate is arranged on one side of the plug plate; the bottom of the plug plate is connected to the drive plate of which the other end is connected to the motor plate; the track shafts are fixed on the plug plate; and the motor plate is provided with a guide rail matched to the track shafts. Only the aforementioned structure realizes a two-shaft rail structure, which improves processing accuracy and lowers processing difficulty; and the utility model prevents the device from swinging due to false operation in the process of installation, debugging and transportation.
CA1133724A1 relates to selectively adjustable means for positioning a shift fork on a shift rail. The adjustable means correlates the shift fork with a shift lever position and assures full engagement of the clutch teeth when the lever is shifted. Positive detent mechanism will assure the transmission will not jump out of gear while coasting or driving under load.
CN208381288U relates to a shifting fork, the shifting fork comprises a fork and fork, the fork is cylindrical structure, the fork is a circular arc structure, the section shape of the fork is inverse convex-shaped. lower end of said shifting fork rod fixedly connected to the arm of the arc top middle position, upper end processing of the said shifting fork rod with thread, the thread is screwed with a nut, the lower part of the thread a set vertical to the shifting distance between the axis of the through hole, the through hole is provided with a fixed baffle is detachable, the length of said fixing block is greater than the diameter of the rod, arc direction of the arm of the plane of the through hole are the same. A fork of the utility model, the lower end of the fork connection is underneath of arc structure, improves the stress surface of shifting power, ensures stable and reliable power and obvious using effect and worth popularizing, and it has compact structure, low cost, good manufacturability, convenient to manufacture and assembly.
The prior arts mentioned herein above are mainly related to the invention is for single output having shifting forks, fork having circular pads, shifting gears, Dual axis fork and common lever for engagement of multiple gears in transmission. None of the references have provided an effective mechanism containing shifting rails, shifting gears , and dual axis forks all together in one application which is cost effective and in which if one gear shifted to engagement other gear doesn’t come in contact with rotating parts and vice -verse, in which rear live PTO and Mid PTO is engaged and neutral position common lever in progressive manner , and in the present invention both rear PTO or Mid PTO gear trains (not simultaneously), that means the output is dual purpose. Thus, there is a need in the art to provide a technically advanced Dual axis fork system to shift these two gears because both gears are in different shafts.

OBJECTIVES OF THE INVENTION
The main objective of the present invention is to provide a Dual axis shifting fork to engage or disengage the gears which are in two different axes.
The another objective of the present invention is to provide the Dual axis fork which comprises of two circular pads for both axis gears, by which both the gears shift simultaneously shifting gears.
Yet the another objective of the present invention is to provide the two shifting gears in which if one gear shifted to engagement other gear should not contact with the rotating parts and vice-verse.
Yet another objective of the present invention is to provide the method of operating the dual axis shifting fork.
SUMMARY OF THE INVENTION
Accordingly the present invention relates to a dual axis shifting fork to engage or disengage the gears which is in two different axis , wherein the shifting fork comprises of two circular pads for both axis gears, by which both the gears shift simultaneously. Moreover the present invention provides two shifting gears in which if one gear shifted to engagement other gear should not contact with the rotating parts and vice-verse. In this mechanism rear live PTO, mid PTO and neutral position is engaged by common lever in progressive manner. The dual axis shifting fork according to embodiments of the present invention to engage and disengage the gears, comprises:
(a) Two circular pads of fork (21&22);
(b) Shifting gears (10, 11);
(c) Shifting Rail (13)
wherein the said fork comprises two circular pads (21 & 22) for both axis gears by which simultaneous shifting of both the gears (10, 11), and the said shifting gears is having two different drives, one is rear live PTO taken from rear side of the vehicle, and other one is Mid PTO drive taken from rear bottom that is towards front direction of the vehicle, the dual fork is configured to engage both gears (10, 11) simultaneously, it shift gears which are in two different axis from neutral position to either for Rear PTO engagement or Mid PTO engagement and when one gear is engaged the other gear is devoid of any contact with the rotating parts of the transmission, the Live PTO, Mid PTO and Neutral position are engaged by common lever in progressive manner.

It is another aspect of the present invention to provide a dual axis shifting fork, wherein the Rear live PTO drive (2) is a single gear pair system in which sliding gear provided is driven (output) shaft.

It is another aspect of the present invention to provide a dual axis shifting fork, wherein the mid PTO (3) is three gear pair (Four gear mesh) system, in which sliding gear provided in driving (Input) shaft.

It is another aspect of the present invention to provide a dual axis shifting fork, wherein in the neutral position condition the claimed fork is in centre position in which gear 1 (10) & gear 2 (11) are not engaging with the mating gears.

It is another aspect of the present invention to provide a dual axis shifting fork, wherein at Mid PTO Position condition dual axis fork moved to LH (Left Hand) side by means of shift levers, and gear 1 (10) engages with mating gears in which the input drive (7) transferred to Mid PTO shaft by means of gear pairs and gives output in the output shaft in the range of 1400 rpm to 2200 rpm, and the rear PTO does not rotate in mid PTO position, as gear 2 (11) does not engage with mating gears

It is another aspect of the present invention to provide a dual axis shifting fork, wherein at rear PTO Position condition the dual axis fork (16) moves to RH (Right Hand) side by means of shift levers, and gear 2 (11) engages with mating gear with the result that the input drive (7) transferred to rear PTO shaft (2) by means of gear 2 and provide 400 rpm to 600 rpm in the output Shaft, wherein the mid PTO not rotates in Rear PTO Position, as gear 1 (10) does not engage with mating gears.

It is another aspect of the present invention to provide a dual axis shifting fork, wherein the shifting rail (13) comprises a detent bore, in which spring (18) and detent ball (14) are mounted.

It is another aspect of the present invention to provide a dual axis shifting fork, wherein the detent ball (14) is locked in the groove (15) provided on the rail (13) by means of spring force due to which the fork (16) stays in its position till external force applied by means of lever, operated by driver.

It is another aspect of the present invention to provide a method of operating of the dual axis shifting fork, comprising steps:
(a) Neutral Position Condition :
(i) dual axis fork (16) is positioned at the centre, transfer of power from engine to a shaft, in this condition none of the bottom shafts gets the torque, and it is in neutral condition as gear 1 (10) & gear 2 (11) do not engage with mating gears;
(ii) transferring of input is not done through the input drive to either Mid PTO or Rear PTO.

(b) Mid PTO Position Condition:
(i) moving of dual axis fork (16) to left hand side by means of shift levers, wherein the power from the engine is transferred to the shaft and further transfer to gear 1 (10) to mating gears;
(ii) Transferring input drive to mid PTO shaft by means of gear pairs and provide 2000 rpm torque in the output shaft, there is no rotation of rear PTO (2) is not in this position, as gear 2 (11) not engaging with mating gears.

(c) Rear PTO Position Condition
(i) Moving the dual axis fork (16) to right hand side by means of shift lever, causing shifting of the gear and the fork towards right side, in which gear 2 (11) is engaging with mating gear;
(ii) Transferring the torque from the engine i.e., input drive to rear PTO shaft by means of gear 2, and provide 540 rpm torque in the output shaft, and no rotation of the mid PTO is caused in this position, as gear 1 (10) is not engaging with mating gear.

BRIEF DESCRIPTION OF DRAWINGS
Figure 1a and 1b depicts the enlarged view of the shifting fork and the circular pads for mid and rear PTO engagement according to the present invention.
Figure 2 represents the shifting rail having detent groove according to the present invention.
Figure 3a represents the enlarged view of the power take-off transmission system of a vehicle with shifting fork and the circular pads for mid and rear PTO engagement according to the present invention.
Figure 3b represents the layout with shifting gears having shifting gear, Rear PTO, Mid PTO.
Figure 4 represents the enlarged view of the power take-off transmission system of a vehicle with shifting fork in Neutral position conditions of the gear 1 & 2.
Figure 5 represents the enlarged view of the power take-off transmission system of a vehicle with shifting fork in Mid PTO Position condition.
Figure 6 represents the enlarged view of the power take-off transmission system of a vehicle with shifting fork in Rear PTO Position condition.
Figure 7 represents the dual axis Fork mounted on the shift rail by the detent spring & detent ball assembly and on the detent groove.
Figure 8 represents the 3D isometric view-1 of complete shift fork, rail sub-assembly along with respective gear train.
Figure 9 represents the 3D isometric view-2 of complete shift fork, rail sub-assembly along with respective gear train.
DETAILED DESCRIPTION OF THE INVENTION
The present invention as embodied by a “Dual Axis shifting fork and the method for operating thereof” succinctly fulfills the above-mentioned need[s] in the art. The present invention has objective[s] arising as a result of the above-mentioned need[s], said objective[s] having been enumerated hereinabove.
The following description is directed to a dual axis fork and the method of operating thereof as much as the objective(s) of the present invention are enumerated, it will be obvious to a person skilled in the art that, the enumerated objective(s) are not exhaustive of the present invention in its entirety, and are enclosed solely for the purpose of illustration. Further, the present invention encloses within its scope and purview, any structural alternative(s) and/or any functional equivalent(s) even though, such structural alternative(s) and/or any functional equivalent(s) are not mentioned explicitly herein or elsewhere, in the present disclosure. The present invention therefore encompasses also, any improvisation[s]/modification[s] applied to the structural alternative[s]/functional alternative[s] within its scope and purview. The present invention may be embodied in other specific form[s] without departing from the essential attributes thereof.
Furthermore, the terms and phrases used herein are not intended to be limiting, but rather are to provide an understandable description. Throughout this specification, the use of the word "comprise" and variations such as "comprises" and "comprising" may imply the inclusion of an element or elements not specifically recited.
The present invention provides a dual axis fork (16) to engage or disengage the gears which is in two different axis, comprises of - two circular pads (21, 22) for both axis gears by which both the gears shift simultaneously through shifting rail. This fork used to shift gears (10, 11) which are in two different axis from neutral position to either for Rear PTO engagement or Mid PTO engagement.
The dual axis fork (16) comprises of shifting gears and these gears moves in the respective shaft splines. At neutral position, these gears are in middle portion, where these gears do not mesh with its respective mating gears. Dual axis common fork (16) as illustrated in Figure 1, hold these gears in its position by means of detent (15) as depicted in Figure 2. When fork moves either of RH (Right Hand) or LH (Left Hand) side, gears moves along with it and engage with respective gears. Position of gears controlled by shifting rail (13), in which detent grooves (15) are provided. Dual axis common fork moves on the rail. There is a spring detent (15) in the fork (16) which seated in the rail groove (13) by which the fork is retained in its position. External force is required to move the fork either RH or LH side, which is accomplished by means of shift lever.
Figure 1 represents dual axis shifting fork (16), this fork used to shift gears which are in two different axis from neutral position to either for rear PTO (Figure 6 ) engagement or Mid PTO engagement (Figure 5). According to figure 1, both the pads (21 22) positions can be customized according to the customer requirements. The centre distance as per the requirement can be modified.
Figure 2 represents shifting rail (13) in which position of gears is controlled by rail, in which detent grooves (15) is provided. Dual axis common fork moves on the rail. There is a spring detent (18) in the fork which seated in the rail groove (13) by which the fork (16) is retained in its position. External force is required to move the fork either RH or LH side, which is accomplished by means of shift lever.
Figure 3 (a) represents layout with shifting gears. These gears move in the respective shaft splines. At neutral position, these gears are in middle portion, where these gears do not mesh with its respective mating gears. Dual axis common fork (16) hold these gears in its position by means of detent (15). When fork moves either of RH or LH side, gears moves along with it and engage with respective gears (10, 11).
Referring to Figures 1 to 2, in an embodiment of the present invention, a shifting fork to engage or disengage the gears, gear 1 (10) and Gear 2 (11) which is in two different axis, and this fork is having two circular pads (21, 22) for both axis gears by which both the gears can be shifted simultaneously, and the two shifting gears as shown in the figures 1-2, is invented in a way that if one gear shifted to engagement other gear should not contact with rotating parts and vice versa. By the above mechanism Rear live PTO, Mid PTO and neutral position is engaged by common lever in progressive manner.
• Neutral Position – when the dual axis fork (16) is in centre position as shown in figure 4, gear 1 (10) & 2 (11) are not engaging with respective mating gears.
• Mid PTO Position – when dual axis fork (16) moved to LH side by means of shift levers as shown in figure 5, gear 1 (10) is engaging with respective mating gears. So the input drive transferred to Mid PTO shaft by means of gear pairs and offer 2000 rpm in the output shaft. Rear PTO does not rotate in this position because gear 2 (11) doesn’t engage with mating gears.
• Rear PTO Position – when dual axis fork moved to RH side by means of shift lever as shown in figure 6, gear 2 (11) is engaging with respective mating gears. So the input drive transferred to rear PTO shaft by means of gear 2 and offer 540 rpm in the output shaft. Mid PTO not rotates in this position, because gear 1 not engaging with mating gears.
Dual axis common fork (16): This fork used to shift gears (10, 11) which are in two different axis from neutral position to either for Rear PTO engagement (6) or Mid PTO engagement (5). It has a detent bore, where detent spring (18) and detent ball (14) mounted. This detent ball locked in the groove provided on the rail by means of spring force. Due to this only dual axis common fork firmly stay in its position till external force applied by means of lever, which operated by driver.
ADVANTAGES OF THE PRESENT INVENTION
1. The present invention provides the dual axis fork which can be used in sliding mesh gears arrangement.
2. The present invention claimed dual axis fork can also be used in constant mesh and synchromesh systems.
3. The present invention dual axis fork system is cost effective
4. Simplified in design
5. Ease of assembling and service.
It will be apparent to a person skilled in the art that the above description is for illustrative purposes only and should not be considered as limiting. Various modifications, additions, alterations, and improvements without deviating from the spirit and the scope of the invention may be made by a person skilled in the art.
, Claims:WE CLAIM:
1. A dual axis shifting fork to engage and disengage the gears, comprising:
Two circular pads of fork (21&22);
Shifting gears (10, 11); and
Shifting Rail (13),
wherein the said fork is characterized in that it has two circular pads (21 & 22) for both axis gears by which simultaneous shifting of both the gears (10, 11), and the said shifting gears is having two different drives, one is rear live PTO taken from rear side of the vehicle, and other one is Mid PTO drive taken from rear bottom that is towards front direction of the vehicle, the dual fork is configured to engage both gears (10, 11) simultaneously, it shift gears which are in two different axis from neutral position to either for Rear PTO engagement or Mid PTO engagement and when one gear is engaged the other gear is devoid of any contact with the rotating parts of the transmission, the Live PTO, Mid PTO and Neutral position are engaged by common lever in progressive manner.
2. The dual axis shifting fork as claimed in claim 1, wherein the Rear live PTO drive (2) is a single gear pair system in which sliding gear provided is driven (output) shaft.
3. The dual axis shifting fork as claimed in claim 1, wherein the mid PTO (3) is three gear pair (Four gear mesh) system, in which sliding gear provided in driving (Input) shaft.

4. The dual axis shifting fork as claimed in claim 1, wherein in the neutral position condition the claimed fork is in centre position in which gear 1 (10) & gear 2 (11) are not engaging with the mating gears.

5. The dual axis shifting fork as claimed in claim 1, wherein at Mid PTO Position condition dual axis fork moved to LH (Left Hand) side by means of shift levers, and gear 1 (10) engages with mating gears in which the input drive (7) transferred to Mid PTO shaft by means of gear pairs and gives output in the output shaft in the range of 1400 rpm to 2200 rpm, and the rear PTO does not rotate in mid PTO position, as gear 2 (11) does not engage with mating gears

6. The dual axis shifting fork as claimed in claim 1, wherein at rear PTO Position condition the dual axis fork (16) moves to RH (Right Hand) side by means of shift levers, and gear 2 (11) engages with mating gear with the result that the input drive (7) transferred to rear PTO shaft (2) by means of gear 2 and provide 400 rpm to 600 rpm in the output Shaft, wherein the mid PTO not rotates in Rear PTO Position, as gear 1 (10) does not engage with mating gears.

7. The dual axis shifting fork as claimed in claim 1, wherein the shifting rail (13) comprises a detent bore, in which spring (18) and detent ball (14) are mounted.

8. The dual axis shifting fork (16) as claimed in claim 7, wherein the detent ball (14) is locked in the groove (15) provided on the rail (13) by means of spring force due to which the fork (16) stays in its position till external force applied by means of lever, operated by driver.

9. A method of operating of the dual axis shifting fork as claimed in claim 1, comprises steps:
a. Neutral Position Condition : dual axis fork (16) is positioned at the centre, transfer of power from engine to a shaft, in this condition none of the bottom shafts gets the torque, and it is in neutral condition as gear 1 (10) & gear 2 (11) do not engage with mating gears;
transferring of input is not done through the input drive to either Mid PTO or Rear PTO.
b. Mid PTO Position Condition:
moving of dual axis fork (16) to left hand side by means of shift levers, wherein the power from the engine is transferred to the shaft and further transfer to gear 1 (10) to mating gears;
transferring input drive to mid PTO shaft by means of gear pairs and provide 2000 rpm torque in the output shaft, there is no rotation of rear PTO (2) is not in this position, as gear 2 (11) not engaging with mating gears.

c. Rear PTO Position Condition
Moving the dual axis fork (16) to right hand side by means of shift lever, causing
shifting of the gear and the fork towards right side, in which gear 2 (11) is
engaging with mating gear; and transferring the torque from the engine i.e., input
drive to rear PTO shaft by means of gear 2, and provide 540 rpm torque in the
output shaft, and no rotation of the mid PTO is caused in this position, as gear1
(10) is not engaging with mating gear.

Dated this 04th day of November, 2022
Kalyan Jhabakh IN/PA-830
Agent for Applicant