Claims:WE CLAIM:
1. A system (100) for converting a conventional levelling implement to a laser levelling implement, said system (100) comprising:
a ‘Y’ shaped frame having a towing arm (10), two connecting arms (10A, 10B) extending and diverging from the towing arm (10) and a beam (10C) extending between the connecting arms (10A, 10B), said towing arm (10) has a tow hook (TH) to connect with a hitch point of a vehicle and said connecting arms (10A, 10B) have end points (E1, E2) to connect to the conventional levelling implement;
a link (T) extending from the beam (10C) to a support point (P) of the conventional levelling implement for supporting a receiver mast (M) in a vertical position; and
a solenoid valve (V) adapted over the frame (Y), said solenoid valve (V) in signal communication with a controller to operate a blade (B) of the levelling implement up or down.
2. The system as claimed in claim 1, wherein the receiver mast (M) has a receiver (R) fixed at a top end.
3. The system as claimed in claim 1, wherein the solenoid valve (V) enables swingable movement of the blade (B) through a hydraulic unit (H).
4. The system as claimed in claim 3, wherein the hydraulic unit (H) is disposed between a guiding arm (S) connected to the blade (B), and an axle of a wheelset (W).
5. The system as claimed in claim 4, wherein the wheelset (W) is pivoted behind of the blade (B).
Dated this 30th day of March 2019

For MAHINDRA & MAHINDRA LIMITED
By their Agent

(GIRISH VIJAYANAND SHETH) (IN/PA 1022)
KRISHNA & SAURASTRI ASSOCIATES LLP
, Description:FORM – 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
THE PATENTS RULES, 2003

COMPLETE SPECIFICATION
(SEE SECTION 10, RULE 13)

A SYSTEM FOR CONVERTING A CONVENTIONAL LEVELLING IMPLEMENT TO A LASER LEVELLING IMPLEMENT;

MAHINDRA & MAHINDRA LIMITED, HAVING ADDRESS: MAHINDRA RESEARCH VALLEY, MAHINDRA WORLD CITY, 41/ 1, P.O. – ANJUR, CHENGALPATTU – 603004, DISTT. – KANCHEEPURAM, TAMIL NADU, INDIA

THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

TECHNICAL FIELD OF INVENTION
The present invention relates to a system for converting a conventional levelling implement to a laser levelling implement.
BACKGROUND OF THE PRESNET INVENTION
Levelling implements are used for levelling soil at beginning of a crop cycle, so that seeds can be sown in the levelled soil. Levelling equipment includes a levelling blade which is attached to the back of a tractor through mechanical linkages.
During the process of levelling, it becomes necessary that the levelling is done with utmost precision. For achieving a high precision levelling, laser levelling implements are also used after the soil is levelled with conventional levelling equipment. However, the user has to perform the arduous task of dethatching the conventional levelling equipment and then attaching the laser levelling equipment. Hence, efforts are required for changing from conventional levelling implement to laser levelling implement. Further, it also leads to consumption of time.
Referring to the accompanying Fig. 1, a conventional levelling implement is attached to a tractor with linkages which are part of the tractor/vehicle. The linkages (1, 2, 3) which are connected with a back of the tractor/vehicle on one side. On the other side, the linkages (1, 2, 3) are connected to spherical joints (4, 5, 6) of a levelling implement, during conventional levelling. The operation of conventional levelling may be required to followed by a laser levelling operation. For the same, the conventional levelling implement has to be removed completely. Thereafter, the laser levelling equipment has to be attached to the tractor. Owing to the same, the user has to purchase and store two levelling implements, i.e. the conventional levelling implement and a laser levelling implement, which is not cost effective. Further, storing two different implements requires space, which is an inconvenience to the user.
Therefore, there is also a need for a solution wherein at least one of the above drawbacks seen in the prior art can be obviated.
SUMMARY OF THE PRESENT INVENTION
In order to overcome the above-mentioned problem, the present invention provides a system for converting a conventional levelling implement to a laser levelling implement, said system comprising: a ‘Y’ shaped frame having a towing arm, two connecting arms extending and diverging from the towing arm and a beam extending between the connecting arms, said towing arm has a tow hook to connect with a hitch point of a vehicle and said connecting arms have end points to connect to the conventional levelling implement, a top link extending from the beam to a support point of the conventional levelling implement for supporting a receiver mast (M) in a vertical position, and a solenoid valve adapted over the frame, said solenoid valve in signal communication with a controller to operate a blade of the levelling implement up or down.
As per an embodiment of the present invention, the receiver mast has a receiver fixed at a top end.
As per another embodiment of the present invention, the solenoid valve enables swingable movement of the blade through a hydraulic unit.
As per yet another embodiment of the present invention, the hydraulic unit is disposed between a guiding arm connected to the blade, and an axle of a wheelset.
BRIEF DESCRIPTIONOF THE DRAWINGS
The detailed description is described with reference signs to the accompanying figures. Further, reference will be made to embodiments of the invention, examples of which may be illustrated in the accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in the context of these embodiments, it is not intended to limit the scope of the invention to these embodiments.
Fig. 1(a) shows an exploded perspective view of a conventional levelling implement, as seen in the prior art.
Fig. 2 shows an exploded perspective view of a system for converting a conventional levelling implement to a laser levelling implement, as per an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PRESNET INVENTION
While this invention is susceptible of embodiment in many different forms, there is shown in the drawings and will herein be described in detail, a preferred embodiment of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspects of the invention to the embodiment illustrated.
The subject matter is now described regarding the drawings, wherein like reference numerals are used to refer to like features/ elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It may be evident, however, that such matter can be practiced without these specific details. In other instances, well–known structures are shown in diagram form to facilitate describing the invention.
Referring to the accompanying Fig. 2, a system (100) for converting a conventional levelling implement to a laser levelling implement as per an embodiment of the present invention is seen. The system (100) as per an embodiment of the present invention comprises: a ‘Y’ shaped frame, a towing arm (10), at least two connecting arms (10A, 10B), a beam (10C), a tow hook (TH), at least two end points (E1, E2), a link (T), a support point (P), a receiver mast (M), a solenoid valve (V), a blade (B), a receiver mast (M).
The ‘Y’ shaped frame has a towing arm (10). The ‘Y’ shaped frame has at least two connecting arms (10A, 10B) which are extending and diverging from the towing arm (10). However, the number of connecting arms can be more than two as per an embodiment of the present invention. A beam (10C) is extending between the connecting arms (10A, 10B). As per an embodiment, multiple beams can be implemented. The towing arm (10) has a tow hook (TH) which connects with a hitch point of a vehicle/tractor. The connecting arms (10A, 10B) have end points (E1, E2) which connect with the levelling implement. As per an embodiment, the end points (E1, E2) are hinged points. The link (T) or top link (T) is extending from the beam (10C) to a support point (P) of the levelling implement and supports the receiver mast (M) in a vertical position. The solenoid valve (V) is adapted over the frame (Y). The solenoid valve (V) is in signal communication with a controller (not shown) which operates the blade (B) of the levelling implement up and/or down.
As per an embodiment of the present invention, the receiver mast (M) has a receiver (R) fixed at a top end. The solenoid valve (V) enables swingable movement of the blade (B) through a hydraulic unit (H). The hydraulic unit (H) is disposed between a guiding arm (S) connected to the blade (B), and an axle of the wheelset (W). As per an embodiment of the present invention, the axle of the wheel set (W) is pivoted behind the blade (B).
During conventional levelling, the blade (B) is used for levelling the soil. As the laser levelling mode is switched on, the receiver (R) receives signal from a transmitter (not shown) which is positioned in the field. The signal contains information regarding the topography of the soil at a particular place on the ground. This information is sent to the controller (not shown) which actuates the solenoid valve (V), such that the solenoid valve (V) manages operation of the hydraulic unit (H). As the hydraulic unit (H) is connected with the blade (B), hence the blade (B) moves swingably up and down as per the topography of the ground, to precisely level the soil. Therefore, precision levelling can be achieved.
During operation, there in no need for a user to change the blade when the conventional levelling operation is over and laser levelling operation has begun with same blade (B). In fact, by using the invention disclosed and claimed herein, the user is free from purchasing two separate implements for conventional and laser levelling, as seen in the prior art. Therefore, the time, efforts and additional cost incurred by the user are completely obviated with the system disclosed and claim hereinbelow.