DESC:

FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See section 10 and rule 13)

1. TITLE OF THE INVENTION:

SELF-PROPELLED & POWERED FRONT GRILL CLEANER ASSEMBLY FOR TRACTOR

2. APPLICANT (S):

a) NAME: ESCORTS KUBOTA LIMITED
b) Nationality: Legal entry incorporated under the law of India
c) Address: Escorts Kubota Limited, Knowledge Management Centre.
15/5, Mathura Road, Faridabad – 121003 (India)

3. INVENTOR (S)

a) NAME: AMIT MARUTI GENGE
b) Nationality: Indian
c) Address: Escorts Kubota Limited, Knowledge Management Centre.
15/5, Mathura Road, Faridabad – 121003 (India)

a) NAME: RAJENDRA PAL
b) Nationality: Indian
c) Address: Escorts Kubota Limited, Knowledge Management Centre.
15/5, Mathura Road, Faridabad – 121003 (India)

PREAMBLE TO THE DESCRIPTION:

COMPLETE:
The following specification particularly describes the invention and the manner in which
it is to be performed:

SELF-PROPELLED & POWERED FRONT GRILL CLEANER ASSEMBLY FOR TRACTOR
Field of the invention:
The present invention generally relates to a novel self-propelled and powered front grill cleaning solution, to be employed into a tractor. The invention provides a novel auto front grill cleaner assembly, to be installed with a tractor, which is capable of function/rotate automatically and mechanically drives the cleaning brush which keeps on rotation by using air draft in front of radiator. This concept is more effective and no external power required for cleaning of front grill.
Said self-propelled and powered front grill cleaner assembly for a tractor mainly comprises grill front subassembly, bracket & brush arrangement, brush bracket assembly, connecting shaft and the fan; wherein said front grill cleaner assembly is characterized in:-
• its brushes in front of the grill, which is connected to a fan at another side of the grill and which rotates mechanically on its axis due to inward air-flow in front of the radiator; and wherein
• no external power is required to rotate the said brushes.
This frequent cleaning arrangement on tractor front grill will improve farmer’s productivity and reduces manpower and breakdown.
Background of the invention and prior arts:
Mechanized agriculture is the process of using agriculture machinery to mechanize the work of agriculture, greatly increasing farm worker’s productivity. The use of mechanized power for agriculture purpose, particularly in Indian conditions and agricultural practices, reduces not just the hardship faced by the farmers under traditional manual practices but also speeds up agricultural processes, saves cost and enhances agricultural productivity. Moreover, timely harvesting may be faced by problems of low work efficiency. The use of straw reaper has been increased and during this application, tractors front grill getting chocked due to fine flying materials of crops (Bhusa). Such frequent chocking of front grill leads to arrest the fresh air in to cooling system of tractor.
Due to such chocking of front grill, the overall operation of the farmer involving the tractor and its attachments, suffers substantial interruptions at an average interval of every 10 to 15 minutes. Subsequently, said chocked front grill needs manual cleaning and therefore separate manpower is required there, other than the tractor’s operator leading to increased cost to the farmer ~400Rs/day (25 days ~ 10000Rs / Season) and if the chocking of front grill has been unattended, this may cause major tractor engine breakdown.
This practice unnecessary affecting farmers Economy, decreasing productivity as well as major breakdown surprises.
In view of the abovementioned practical hardships associated with the conventional tractors and the front grill chocking incidences thereof and to overcome the drawbacks involved with conventional machines and practices, the inventors of the instant inventive concept have conceptualized the concept of auto front grill cleaner assembly for tractor.
Prime object of the instant invention is to provide a self-propelled and powered front grill cleaner assembly to be installed with a tractor so as to avoid front grill chocking and allowing the fresh air entry to the cooling system of the tractor.
Another object of the instant invention is to provide a novel front grill cleaner assembly to be installed with a tractor so as to avoid front grill chocking and allowing the fresh air entry to the cooling system of the tractor.
Another object of the invention is to provide self-propelled and powered front grill cleaner assembly for a tractor mainly comprises grill front subassembly, bracket & brush arrangement, brush bracket assembly, connecting shaft and the fan; wherein said front grill cleaner assembly is characterized in Its brushes in front of the grill, which is connected to a fan at another side of the grill and which rotates mechanically on its axis due to inward air-flow in front of the radiator; wherein no external power is required to rotate the said brushes.
Another object of the instant invention is to provide a tractor installed with the front grill cleaner assembly, which is capable of functioning/rotating without the involvement of any power from the tractor and automatically drives the cleaning brush towards continuous removal of any husk and debris from the front grill thereof.
Another object of the instant invention is to provide a self-propelled front grill cleaner assembly, installed with a tractor in front of its front grill, used to drive the cleaning brush which keeps on rotating by using air draft in front of radiator.
Description of the drawings:
Figure 1: Represents the schematic top view of the tractor’s front grill with the auto cleaner assembly, to be mounted in front of the tractor’s engine cabinet, installed with the radiator;
Figure 2: Represents the schematic complete view of the tractor’s front grill with the auto cleaner assembly, showing the positioning of the rotatable fan thereof; to be mounted in front of the tractor’s engine cabinet, installed with the radiator;
Figure 3: Represents the schematic exploded view of the tractor’s front grill with the auto cleaner assembly and the tractor’s engine cabinet, installed with the radiator;
Figure 4: Represents a view of the actual working of the tractor, showing its front grill with the auto cleaner assembly thereof;
Figure 5: Represents another view of the actual working of the tractor, showing its front grill with the auto cleaner assembly thereof;
Figure 6: Represents the schematic exploded sketch drawings of the components of the tractor’s front grill with the auto cleaner assembly and the tractor’s engine cabinet, installed with the radiator.
List of numerals used in the drawings and the particulars of the constructional aspects involved in the instant inventive concept:
Sr. No. PART DESCRIPTION
1 GRILL FRONT SUBASSEMBLY
2 BRACKET AND BRUSH ARRANGEMENT of the self-propelled and powered front grill cleaner
3 BOLT to assemble the Bracket & Brush arrangement with the fan (10)
4 SPRING WASHER
5 PLAIN WASHER
6 BUSH-BRACKET ASSEMBLY for connecting the Bracket & Brush Arrangement (2) with the Fan (10)
7 CONNECTING SHAFT
(i.e., shaft connected to Fan (10) and Brush Frame (13))
8 NUT
9 PLAIN WASHER
10 FAN OF THE SELF-PROPELLED AND POWERED FRONT GRILL CLEANER
11 Tractor Radiator
12 Radiator Fan
13 Brush Frame
14 Bush to support Fan of the self-propelled and powered front grill cleaner assembly
15 Brush to Swipe straw

Summary of Invention:
The present invention discloses a self-propelled and powered front grill cleaner assembly for a tractor mainly comprises grill front subassembly, bracket & brush arrangement, brush bracket assembly, connecting shaft and the fan; wherein said front grill cleaner assembly is characterized in its brushes in front of the grill, which is connected to a fan at another side of the grill and which rotates mechanically on its axis due to inward air-flow in front of the radiator; wherein no external power is required to rotate the said brushes.
The issue of front grill chocking & breakdown of tractors was reported from farmers since critical, mechanization of reaper application has been in use. This is a major loss of Time, season and Money for farmer.
Auto front grill cleaning arrangement has brushes in front of grill and which is connected to fan at another side of grill, which rotates in its axis due to induced air flow in front of radiator, no external power required to rotate the brushes. This frequent cleaning arrangement on tractor front grill will improve farmer’s productivity and reduces manpower and breakdown
The invented “self propelled & powered front grill cleaner assembly” is actually provisioned around the grill front subassembly of the tractor. The said front grill of the tractor, comprises a subassembly, wherein a connecting shaft is secured on the body of the front grill through a bush-bracket assembly and in one side said shaft is connected to the bracket and brush arrangement and at the same time the said connecting shaft is connected to a fan at its another side. Said fan is connected to the connecting shaft through nut(s) and washer(s).
The connecting shaft, using the application of bolt(s), spring washer(s) and plain washer(s), is secured with the bush-bracket assembly. The Bracket & Brush assembly is suitably engaged and assembled with the said bush-bracket assembly so that the direction of the force of rotational motion gets converted to an input drive force for the brush frame and consequently for the self propelled rotation of brush(es).
At the bush-bracket assembly is so provisioned that the rotational motion of the fan is transferred to the bracket and brush arrangement and consequently the brush mounted on the brush frame performs its rotational motion around the axis of the said brush frame. Thus the brush, which is so positioned to almost touch the front grill surface, performs its straw swiping action towards cleaning the front grill cleaner.
The bracket & brush assembly consists of brush(es), mounted on at least one brush frame, positioned in front of the grill, which is connected to the fan at another side of the grill, near the radiator and said fan is provisioned to rotate mechanically on its axis due to inward air-flow in front of the radiator without external power .
Auto front grill cleaning arrangement has brushes in front of grill and which is connected to fan at another side of grill, which rotates on its axis due to induced air flow in front of radiator, and no external power required to rotate the brushes. The in-flow of the air, sucked by the radiator fan provides sufficient power to maintain the rotational motion of the fan present in the front grill auto cleaner assembly. This frequent cleaning arrangement on tractor front grill will improve farmer’s productivity and reduces manpower and breakdown.
During field application front grill of tractor getting chocked due to fine flying materials of crops (Bhusa) which is approximate in the sizes of 1.7 to 1.9 mm, whereas front grill of tractor has hole size of 1.7mm which is less than the size of Bhusa due to less in size of hole air is getting restricted for cooling system. Restriction of air increasing the water temperature of cooling system and can cause for overheating. Cleaning of front grill required very frequently if not getting done overheating may cause major break dawn.
So, auto front grill cleaning through the novel concept of creating an arrangement of self propelled front grill auto cleaner has been invented to overcome the issue.
Cooling system of the tractors has suction radiator fan where air is directed to front grill to radiator front and then getting heated and released to the ambient.
This suction of air has been used to drive the invented fan behind the front grill to rotate.
This rotation of fan arrangement has equipped with brush arrangement in front of front grill which rotates as the fan rotates at its axis.
As the brush threads contacts with grill from front where bhusa gets swiped out immediately and keeps clean surface for fresh air entry, which maintain effectiveness of cooling system.
Thus the cooling is proper engine over heating gets avoid.
Detailed description of the invention with the help of drawings:
In Figure 1 the tractor’s front grill assembly (1) with the auto cleaner assembly is shown, wherein the auto cleaner brush, its fan and its customized bracket is shown as single assembly, mounted around the front side of the tractor’s engine cabinet, installed with the radiator and its fan thereof. In Figure 2, the complete view of the tractor’s front grill with the auto cleaner assembly is shown, along with the positioning of the rotatable fan (10), mounted around its shaft (7) thereof.
Figure 3 is an attempt to show the overall picture of the front grill assembly of a harvesting tractor, which also indicates the functionality aspect of the said front frill’s auto cleaner assembly. It also represents the schematic exploded view of the tractor’s front grill subassembly (1) with the auto cleaner assembly and the tractor’s engine cabinet, installed with the tractor’s radiator (11) and radiator fan (12).
Figure 6 represents the schematic exploded sketch drawings of the components of the tractor’s front grill subassembly (1) and the tractor’s engine cabinet, installed with the radiator, wherein it is particularly showing the complete exploded view of the components assembled together to form the auto cleaner assembly of the instant invention. The figure 6 also provides the isomeric view of the tractor’s front grill subassembly (1), from the front side (showing the cleaner brush (15) arranged at the front side of the tractor’s front grill) as well as from the back or inner side (showing the fan (10) arranged at the back side of the tractor’s front grill).
The invented “self propelled & powered front grill cleaner assembly” is actually provisioned around the grill front subassembly (1) of the tractor. The said front grill of the tractor, comprises a subassembly (1) wherein a shaft (7) is secured on the body of the front grill through a bush-bracket assembly (6), and in one side said shaft (7) is connected to the bracket and brush arrangement (2) and at the same time it (7) is connected to a fan (10) at its another side. Said fan (10) is connected to the connecting shaft (7) through nut(s) (8) and washer(s) (9).
The connecting shaft (7), using the application of bolt(s) (3), spring washer(s) (4) and plain washer(s) (5), is secured with the bush-bracket assembly (6). The Bracket & Brush assembly (2) is suitably engaged and assembled with the said bush-bracket assembly (6) so that the direction of the force of rotational motion gets converted to an input drive force for the brush frame (13) and consequently for the self propelled rotation of brush(es) (15).
At the bush-bracket assembly (6) is so provisioned that the rotational motion of the fan (10) is transferred to the bracket and brush arrangement (2) and consequently the brush (15) mounted on the brush frame (15) performs its rotational motion around the axis of the said brush frame (15). Thus the brush (15), which is so positioned to almost touch the front grill surface, performs its straw swiping action towards cleaning the front grill cleaner.
The bracket & brush assembly (2) consists of brush(es) (15), mounted on at least one brush frame (13), positioned in front of the grill, which is connected to the fan (10) at another side of the grill, near the radiator (11) and said fan (10) is provisioned to rotate mechanically on its axis due to inward air-flow in front of the radiator (11) without external power .
Auto front grill cleaning arrangement has brushes (15) in front of grill and which is connected to fan (10) at another side of grill, which rotates on its axis due to induced air flow in front of radiator (11), and no external power required to rotate the brushes (15). The in-flow of the air, sucked by the radiator fan (12) provides sufficient power to maintain the rotational motion of the fan (10) present in the front grill auto cleaner assembly. This frequent cleaning arrangement on tractor front grill will improve farmer’s productivity and reduces manpower and breakdown.
During field application front grill of tractor getting chocked due to fine flying materials of crops (Bhusa) which is approximate in the sizes of 1.7 to 1.9 mm, whereas front grill of tractor has hole size of 1.7mm which is less than the size of Bhusa due to less in size of hole, air is getting restricted for cooling system. Restriction of air increasing the water temperature of cooling system and can cause for overheating. Cleaning of front grill required very frequently if not getting done overheating may cause major break dawn.
So, auto front grill cleaning through the novel concept of creating an arrangement of self propelled front grill auto cleaner has been invented to overcome the issue.
Cooling system of the tractors has suction radiator fan where air is directed to front grill to radiator front and then getting heated and released to the ambient.
This suction of air has been used to drive the invented fan (10) behind the front grill to rotate.
This rotation of fan arrangement has equipped with brush arrangement (15) in front of front grill, which rotates as the fan rotates at its axis.
As the brush threads have contacts with the grill from front where bhusa gets swiped out immediately and keeps clean surface for fresh air entry, which maintain effectiveness of cooling system.
Thus the cooling is proper engine over heating gets avoid.

Findings during actual application at field :-
Without Auto cleaning grill – front grill chocking 100 % up to 1.5 no’s trolley filling (Duration 40 to 50 Minutes)With Auto cleaning grill chocking 70 % up to 4.5 no’s of trolley. (Duration 160 to 170Minutes) – Internal chocking of radiator as resultant of poor sealing causing slowdown the invented fan.
Data obtained during the testing of the most preferred embodiment of the said auto front grill cleaning solution:-
Test component WITHOUT, SELF-PROPELLED & POWERED FRONT GRILL CLEANING SOLUTION WITH, SELF-PROPELLED & POWERED FRONT GRILL CLEANING SOLUTION
Front grill hole diameter 1.6 mm 1.6 mm
ERPM Used 1700 1700
Gear Used L1 & L2 L1 & L2
Grill chocking condition Front(rest area) 80-90% Natural chocking 30-35% Natural Chocking
Wiper area clean Not Applicable 70-80 % clean by wiper
Front grill side area chocking (LH&RH) Not Applicable 25-30% chocking
Radiator chocking 10% chocking 25-30% Chocking
Test time 40-50 Minute 160-170 Minute
Cluster Temperature needle position °Cat end of test 107 (Red Zone) 105(Red Zone)
Comparative water temp. °C and needle position at 40 to 50 min 107 (Red zone) 85 (Green Zone)
Ambient Temperature °C 37 37
Nos of trolley filling 1-1.5 4-4.5
Straw Condition Medium straw & fully dry Medium straw & fully dry
Straw condition on grill Straw sticking frequency is higher Straw clean by wiper up to 4-4.5 no’s trolley

• Improvement observed in front grill chocking, with self-propelled front grill cleaning concept.
• With self-propelled front grill cleaning concept chocking observed 60-70% in 3 hrs/ 4-4.5 nos trolley against Existing front grill chocking 80-90 % in 40-45 Minute/ 1-1.5 nos trolley.
Advantages of the invention:
Advantages to Farmer:
? Eco friendly – self powered
? Un-interrupted operation at reaper application
? Manpower cost reduction (~10000Rs / Season)
? Engine Breakdown cost reduction (~30000 to 40000Rs)
? Season lost cost (2.5lac to 3.5Lac)
Advantages to Tractor Manufacturer:
? Less service concern
? MSP of product sell
? Reduce customer claims.
? Simplicity of front grill design.
? Easy to installation
It will be apparent to those skilled in the art that various modifications and variations can be made in the scheme(s) and embodiments of the invention or other possible arrangements and rearrangements within the present invention, without departing from the spirit or scope of the invention. Thus, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the description, illustrations, drawings, appended claims and their equivalents.
,CLAIMS:We Claim:
1. A self-propelled and powered front grill cleaner assembly, to be installed with a tractor so as to avoid front grill chocking and allowing the fresh air entry to the cooling system of the tractor; wherein said front grill cleaner assembly for a tractor mainly comprises grill front subassembly (1), bracket & brush arrangement (2), brush bracket assembly (6), connecting shaft (7) and the fan (10); wherein:-
• The grill front assembly (1) consists of the bracket & brush assembly (2) at the front side of the tractor’s front grill and a rotating fan (10) at the back side of the said tractor’s front grill;
• Said bracket & brush assembly (2) and the fan (10) are connected to each other by a connecting shaft (7) at the bush-bracket assembly (6).
2. The front grill cleaner assembly, as claimed in claim 1, wherein the bracket & brush assembly (2) consists of brush(es) (15), mounted on at least one brush frame (13), positioned in front of the grill, which is connected to the fan (10) at another side of the grill, near the radiator (11) and said fan (10) is provisioned to rotate mechanically on its axis due to inward air-flow in front of the radiator (11) without external power .
3. The front grill cleaner assembly, as claimed in claim 1, wherein no external power is required to rotate the said fan (10) and the brushes (15).
4. The front grill cleaner assembly, as claimed in claim 1, wherein it is characterized in avoiding front grill chocking and allowing the fresh air entry to the cooling system of the tractor by way of mechanically .
5. The front grill cleaner assembly, as claimed in claim 1, which is capable of functioning/rotating without the involvement of any power from the tractor and automatically drives the cleaning brush (15) towards continuous removal of any husk and debris from the front grill thereof.
6. The front grill cleaner assembly, as claimed in claim 1, wherein said self-propelled front grill cleaner assembly, installed with a tractor in front of its front grill, used to drive the cleaning brush (15), which keeps on rotating by using air draft in front of radiator.
7. The front grill cleaner assembly, as claimed in claim 1, wherein:-
• The grill front subassembly (1) of the tractor. The said front grill of the tractor, comprises a subassembly (1) wherein a shaft (7) is secured on the body of the front grill through a bush-bracket assembly (6), and in one side said shaft (7) is connected to the bracket and brush arrangement (2) and at the same time it (7) is connected to a fan (10) at its another side.
• The connecting shaft (7), using the application of bolt(s) (3), spring washer(s) (4) and plain washer(s) (5), is secured with the bush-bracket assembly (6). The Bracket & Brush assembly (2) is suitably engaged and assembled with the said bush-bracket assembly (6) so that the direction of the force of rotational motion gets converted to an input drive force for the brush frame (13) and consequently for the self propelled rotation of brush(es) (15).
• At the bush-bracket assembly (6) is so provisioned that the rotational motion of the fan (10) is transferred to the bracket and brush arrangement (2) and consequently the brush (15) mounted on the brush frame (15) performs its rotational motion around the axis of the said brush frame (15). Thus the brush (15), which is so positioned to almost touch the front grill surface, performs its straw swiping action towards cleaning the front grill cleaner.
• The bracket & brush assembly (2) consists of brush(es) (15), mounted on at least one brush frame (13), positioned in front of the grill, which is connected to the fan (10) at another side of the grill, near the radiator (11) and said fan (10) is provisioned to rotate mechanically on its axis due to inward air-flow in front of the radiator (11) without external power .
• The auto front grill cleaning arrangement has brushes in front of grill and which is connected to fan at another side of grill, which rotates in its axis due to induces air flow in front of radiator, wherein no external power required to rotate the brushes.
8. The front grill cleaner assembly, as claimed in claim 1, wherein said front grill is approximate in the sizes of 1.7 to 1.9 mm and hole size of 1.7 mm which is less than the size of husk (Bhusa) and which is cleaned frequently by the brush and fan behind the front grill to avoid overheating and any possibility of major break dawn; wherein said cleaning is characterized as under:
• Cooling system of the tractors has suction radiator fan where air is directed to front grill to radiator front and then getting heated and released to the ambient.
• This suction of air has been used to drive the invented fan behind the front grill to rotate.
• This rotation of fan arrangement has equipped with brush arrangement in front of front grill which rotates as the fan rotates at its axis.
• As the brush threads contacts with grill from front where bhusa gets swiped out immediately and keeps clean surface for fresh air entry, which maintain effectiveness of cooling system.
• Thus the cooling is proper engine over heating gets avoid.
9. The front grill cleaner assembly, as claimed in claim 1, wherein with auto cleaning grill chocking is reduced upto 70 % up to 4.5 no’s of trolley (Duration 160 to 170Minutes), wherein in a preferred illustrative situation of operating a tractor with the auto front grill cleaner assembly is characterized in the following Data obtained:-
Test component WITHOUT, SELF-PROPELLED & POWERED FRONT GRILL CLEANING SOLUTION WITH, SELF-PROPELLED & POWERED FRONT GRILL CLEANING SOLUTION
Front grill hole diameter 1.6 mm 1.6 mm
ERPM Used 1700 1700
Gear Used L1 & L2 L1 & L2
Grill chocking condition Front(rest area) 80-90% Natural chocking 30-35% Natural Chocking
Wiper area clean Not Applicable 70-80 % clean by wiper
Front grill side area chocking (LH&RH) Not Applicable 25-30% chocking
Radiator chocking 10% chocking 25-30% Chocking
Cluster Temperature needle position °C 107 (Red Zone) 105(Red Zone)
Ambient Temperature °C 37 37
Test time 40-50 Minute 160-170 Minute
Nos of trolley filling 1-1.5 4-4.5
Straw Condition Medium straw & fully dry Medium straw & fully dry
Straw condition on grill Straw sticking frequency is higher Straw clean by wiper up to 4-4.5 no’s trolley

10. The front grill cleaner assembly, as claimed in claim 1, wherein the construction and operational aspects is indicated in the schematic drawings of Figure 3 and Figure 6, as under:

FIGURE: 3

Figure 6