WO2001005215A1 - Refilling machine for sown ground - Google Patents

Abstract

The invention concerns a refilling machine for sown ground essentially characterised in that the scarifying discs are divided into three separate modules (8, 9, 10) mounted on three support pins (11, 12, 13) integral with three separate carriages (5, 6, 7); the scarifying disc modules (8, 9, 10) are arranged such that they cover, when placed juxtaposed, over a common axis or on offset axes, the useful width of the funnels (4) associated with a seed store; each carriage (5, 6, 7) is controlled in vertical positioning by its own actuator-type driving means.

Description

 SEED GROUND TRIMMER

The invention relates to a seeded soil replenisher of the type comprising a chassis associated with a displacement means, of the wheeled type, a seed tank, seed distribution funnels, a carriage carrying a plurality of scarifying discs arranged at regular intervals along a support axis and hollow sowing fingers, provided with an end capable of spreading the lawn and distributing the seeds in the furrows produced by said scarifying discs.

The turf of sports fields or golf greens constitute homogeneous surfaces of a carpet of grasses which should be maintained by a relining operation.

Known relining machines generally comprise a single, straight axis, carrying a plurality of discs (or teeth) positioned at regular intervals. The working width (fixed) corresponds to a well-defined application. They include a reservoir associated with a seed distributor which falls behind the scarifying elements.

These sets are compact, heavy, not adaptable to the height difference, the seedbed is irregular and they are specific to each application.

The soil replenisher seeded according to the invention is essentially characterized in that:

- the scarifier discs are divided into three separate modules mounted on three separate support axes secured to three separate carriages;

- Said scarifier disc modules are arranged in such a way that they cover, placed in juxtaposition, on the same axis or on offset axes, the useful width of the funnels associated with the reservoir and maintained, at regular intervals, by a transverse support;

- Each carriage is controlled in vertical positioning by its own cylinder type displacement means. According to other characteristics of the invention:

- Each sowing finger is associated with a roller itself associated with a telescopic arm secured to the corresponding carriage so as to adjust the height of the end of the sowing finger relative to the ground and to the scarifying discs; - the cylinders regulate the height of the carriages therefore the penetration rates of the scarifying discs and the ends of the sowing fingers;

- masses serving as ballast are arranged on the chassis by means of connection means: they are sized according to the jacks themselves sized according to the type of task to be performed. The fragmentation of the bearing axis of the discs allows:

- a better adaptation of the work to the width to be treated and to the shape of the ground;

- work that does not tear off the surface to be treated in the curves. The combination of cylinders and counterweights allows:

- better insertion of the discs;

- better sizing of the sub-assemblies according to the work to be done; resulting in improved sowing quality. The fingers can even be reversed 180 ° to go from a fine job to a coarser job depending on the height of the lawn. A better dosage of the seed has the consequence of reducing losses, thus saving money and obtaining greater regularity of sowing. Such an assembly appreciably reduces friction with the ground and the lawn and eliminates any risk of scalping of the sprinkler heads.

The characteristics and advantages of the invention will appear more clearly on reading the following detailed description of at least one preferred embodiment of the invention given by way of non-limiting example and shown in the accompanying drawings. In these drawings:

- Figure 1 is an elevational view of the relarnisher according to the invention;

- Figure 2 is a simplified top view of said relining machine;

- Figure 3 is a simplified profile view of a carriage provided with an inverted sowing finger.

The relining machine shown in the figures is of the type comprising a frame (1) associated with a displacement means (2), of the wheeled type, a seed tank (3), funnels (4) for distributing the seeds, a carriage ( 5,6,7) carrying a plurality of scarifying discs (8,9,10) arranged at regular intervals along a support axis (11,12,13) and sowing fingers (14), hollow, provided with an end (15) capable of spreading the lawn and distributing the seeds in the furrows produced by said scarifying discs. According to the essential characteristics of the invention: - the scarifying discs are divided into three separate modules (8,9,10) mounted on three separate support axes (11,12,13) integral with three separate carriages (5,6,7 );

- the scarifier disc modules (8, 9, 10) are arranged in such a way that they cover, placed in juxtaposition, on the same axis or on offset axes, the useful width of the funnels (4) associated with the reservoir (3 ) and maintained at regular intervals by a transverse support (16);

- Each carriage (5,6,7) is controlled in vertical positioning by its own displacement means (17,18,19) of the jack type. According to particular features of the invention:

- The rear carriage (5) is central and is connected to the chassis (1) via an articulated arm (20) and an offset arm (21);

- The front carriages (6,7) are lateral and are connected to the chassis (1) by means of articulated arms (22,23); - Each sowing finger (14) is associated with a roller (24) itself associated with a telescopic arm (25) integral with the corresponding carriage (5,6,7) so as to adjust the height of the end (15) of the sowing finger (14) relative to the ground (26) and to the discscarifiers (8,9,10);

- the jacks (17,18,19) regulate the height of the carriages (5,6,7) therefore the penetration rates of the scarifying discs (8,9,10) and the ends

(15) sowing fingers (14);

- masses (27), serving as ballast, are arranged on the chassis (1) by means of connection means (28);

- The connection between the funnels (4) and the sowing fingers (14) is ensured by offset pipes (29,30,31);

- the sowing fingers (14) are held on the carriages (5,6,7) by means of spacers (32);

- the sowing fingers (14) can be reversed by 180 ° rotation to work on thicker lawns; - The chassis (1) has lateral (33,34) and central (35) attachment arms to the tractor. Of course, the invention is not limited to the embodiments described and shown for which other variants can be provided, in particular in:

- the number of trolleys and discs per trolley used;

- the respective locations of the carriages between them;

- the means of movement and articulation of the various sub-assemblies;

- the types of seeds and possible applications.

Claims

1- Seeded soil replenisher of the kind comprising a frame (1), associated with a displacement means (2), of the wheeled type, a seed tank (3), funnels (4) for distributing seeds, a carriage (5,6,7) carrying a plurality of scarifying discs (8,9,10) arranged at regular intervals along a support axis (11,12,13) and sowing fingers (14), hollow, provided with an end (15) capable of spreading the lawn and distributing the seeds in the furrows produced by said scarifying discs; characterized in that the scarifier discs are distributed in three separate modules (8,9,10) mounted on three separate support axes (11,12,13) secured to three separate carriages (5,6,7); in that said scari icing disc modules (8, 9, 10) are arranged in such a way that they cover, placed in juxtaposition, on the same axis or on offset axes, the useful width of the funnels (4) associated with the reservoir (3) and maintained at regular intervals by a transverse support (16); and in that each carriage (5,6,7) is controlled in vertical positioning by its own displacement means (17,18,19) of the jack type. 2- Stacker, according to claim 1, characterized in that the rear carriage (5) is central and is connected to the chassis (1) via an articulated arm (20) and an offset arm (21 ). 3- Stacker, according to claim 1, characterized in that the front carriages (6,7) are lateral and are connected to the chassis (1) by means of articulated arms (22,23). 4- reloader, according to any one of the preceding claims, characterized in that each sowing finger (14) is associated with a roller (24) itself associated with a telescopic arm (25) integral with the corresponding carriage (5,6, 7) so as to adjust the height of the end (15) of the sowing finger (14) relative to the ground (26) and to the scarifying discs (8, 9, 10). 5- relining device, according to any one of the preceding claims, characterized in that the jacks (17,18,19) regulate the height of the carriages (5,6,7) therefore the penetration rates of the scarifying discs (8,9, 10) and the ends (15) of the sowing fingers (14). 6- relining device, according to any one of the preceding claims, characterized in that masses (27), serving as ballast, are arranged on the chassis (1) by means of connection means (28). 7- Device according to claim 1, characterized in that the connection between the funnels (4) and the sowing fingers (14) is provided by offset pipes (29,30,31). 8- Releeder according to claim 1, characterized in that the sowing fingers (14) are held in the carriages (5,6,7) by means of spacers (32). 9. Releeder according to claim 1, characterized in that the sowing fingers (14) can be reversed by rotation through 180 ° to work on turf of greater thickness. 10- Stuffing machine, according to claim 1, characterized in that the chassis (1) comprises lateral (33,34) and central (35) attachment arms to the tractor.