CS215116B2 - Appliance for cultivating the lawns - Google Patents

Abstract

The appliance serves for treating mown material and making it possible to use it as fertilizer for the freshly mown lawn area. The treatment apparatus (1) designed as a trailer unit comprises a housing (4) with a worm (7), a cutter disc (12) and a broadcaster (14). The cut and picked-up mown material is fed via pneumatic conveying means (2, 3) to the worm housing (4) where the mown material is compacted and juice is extracted from it. The compacting and juice extraction are followed by comminution, by means of which the mown material is cut into very small pieces by the cutter disc (12). The mown material is subsequently separated into solid and liquid constituents and is applied to the mown lawn area in a fine spread by means of the broadcaster (14). The worked lawn area thus undergoes complete care treatment in a single operation. <IMAGE>

Description

The present invention relates to an apparatus for:. • Treating green areas where the cut material is scattered on the soil surface.

When mowing lawn areas, the remainder of the mowed grass is created, which either remains evenly on the lawn, or must be picked up by lawn sweepers or sucked and removed. If the mowed grass is left lying on the mowed area, which is only possible with low and thin grass, then the lawn becomes felted over time, which in turn leads to root suffocation and damage to the lawn plants.

If the lawn is swept or vacuumed, then the working process should always be interrupted when the hopper is full and must be transported to a suitable place for emptying. Since suitable areas for storing and composting the mowed material are not usually in the vicinity of the work surfaces, it must then be reloaded onto the lorry for removal. This lengthy manipulation extends the care for green areas.

Experience has shown that cut grass, if not removed, although it usually falls to the ground, but there dries and creates a kind of felt, which prevents the air to the roots and thereby damaging lawn plants. Drying occurs because the cut grass is still loose and is therefore difficult to rot. This undesirable condition must be disrupted by laborious working procedures. If the lawn is very dense and tall, then a layer of mown lawn will form on the surface of the mowed lawn which will leave brown spots on the lawn when rotting, which will hardly be covered with the growing grass again. Therefore, the dense grass is swept or sucked after mowing and the swept or sucked grass weighs. This procedure makes the lawn care very expensive.

Addition . it is necessary to take frequent detours when cutting edges on highways and green belts, especially when transporting the cut material, as the exit is not anywhere at any point; and. when driving back on the motorway, return to the nearest ramp.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a device which makes it possible to treat waste occurring during mowing in such a way that it can be immediately removed, i.e. dispersed again on the mowed area.

The essence of the lawn care device lies according to. of the invention in that it consists of a cylindrical housing provided with a worm and. a hopper into which the mowed grass supply pipe opens and a rotating plate is placed under the cylindrical housing for spreading grass and juice.

In the rear of the cylindrical housing there is a free space for pressed cut grass, under which a lockable pipeline for draining juice is provided.

A vertical perforated disc is mounted behind the auger, in front of which a rotating blade disc is mounted.

Experiments have shown that the cut grass can thus be processed into a dispersible state of substantially lower volume if it is compressed, ground and, if necessary, also juice-free. After evenly scattering on the cut green area, there is no visible residue and no felled soil is formed, since the volume of the dispersed mass is so small that it does not cover the entire area but the individual particles fall directly on the soil beside the roots.

At the same time, the optimum particle size of the dispersed mass is achieved by their rapid and perfect soil absorption. At the same time, the nutrients supplied to the green area significantly reduce the consumption of fertilizer, which has been proven in experiments with a non-swept mowed area of minimal grass length.

Such compression and grinding can be achieved by a screw press similar to a meat grinder or by a machine similar to a fruit screw press or by impact drums, as is known in particular for harvesting mowers, or by a combination of these devices.

Subsequent scattering can be carried out in the manner customary for fertilizer using roller or centrifugal spreaders.

The liquid present in the dewatering of the cut juice, optionally supplemented with additional water, can also be dispersed evenly over the green surface in a conventional manner, or it can be collected in a storage tank.

However, if the compressed and ground mowed mass is not to be dispersed, it can be collected in containers or collection bags and then weighed, with the advantage that the substantially reduced volume of the compressed mowed mass allows it to be emptied less frequently than a normally mown mass.

The object of the invention is shown schematically in the drawing in front view.

An essential part of the device is the so-called trimmer 1 for mowed material, which is obtained by an unmarked mower driven from the tractor side and is also conveyed by means of an unmarked suction device via line 2, 3. It consists of a hollow cylindrical box 4 the universal joint shaft 5 of the tractor by means of the intermediate propeller shaft 6.

The housing 4 is closed on the side opposite to the drive by a perforated disc 8, in the center of which a worm shaft is mounted in the bearing 9.

In front of the perforated disk 8, a free space 10 is formed into which the cut matter conveyed by the worm 7 is compressed. Hereby, inter alia, the liquid contained therein is released and can flow through the outlet duct 11 arranged in the wall of the housing 4 at its lowest point.

A knife blade is mounted on the worm shaft pin behind the perforated disk 8

12, which rotates with the worm 7 and disrupts the compacted strands of mown material extruded through the holes in the punching disk 8 into very small sections. By means of a flexible spring clip 13, the perforated disk 8 is fixed in position. The blade disc 12 rotates together with the worm 7 while the perforated disc 8 is secured immovably to the housing 4.

The cut off particles of mowed material fall on a rotating plate 14 of a centrifugal spinner connected to the treatment plant 1 by which they are scattered. In the same way, the liquid pressed from the cut matter and the outlet or dripping pipe 11 is pushed and sprayed by centrifugal action over the rim of the turntable 14. The rotational movement of the turntable 14 is derived from the rotation of the screw 7 in an unmarked manner.

The mowed mass enters the treatment plant 1 via lines 2, 3 and the feed hopper 15 and exits the treatment plant 1 in a dispersive state.

Claims (3)

THE INVENTION OF THE INVENTION A lawn care device associated with a grass clipping device, characterized in that it comprises a cylindrical housing (4) provided with a screw (7) and a hopper (15) into which the grass clipping pipe (2, 3) opens. wherein a rotating plate (14) for spreading grass and juice is arranged under the cylindrical housing (4). Lawn care device according to claim 1, characterized in that a free space (10) for pressed cut grass is provided in the rear part of the cylindrical housing (4), below which a lockable juice-discharge pipe (11) is provided. Lawn care device according to Claims 1 and 2, characterized in that a vertical perforated disc (8) is mounted behind the auger (7), in front of which a rotating blade disc (12) is mounted.