FR2703875A1 - Design of garden implement for digging a liquid under pressure into the ground and working the latter in the same operation - Google Patents

Abstract

The invention relates to a design of interchangeable garden implement making it possible, at the same time as the hoeing operation, for example, to water the ground deep down whilst keeping aerated soil on the surface. It consists of a hollow handle (1) (section A) fitted onto and clamped at (3) into a handgrip (2), equipped with a digger (14), which may be standard, connected by a hose (15) to a mains water watering hose or to a portable pressurised-water reservoir such as a spray device. Hollow teeth (4), (5), (6) (section B), like the teeth of a claw, are secured to the handle (7), welded on in a leaktight fashion and each includes, preferably at its pointed end (8), (9), (10), a water-ejection hole (11), (12), (13), preferably pointing in the opposite direction in which the implement works the ground. The design according to the invention is particularly intended for gardening and simultaneous watering of the ground during the same operation.

Description

 The present invention relates to a concept of gardening tool which works and buries, under pressure, in the ground a liquid, a paste or a powder, in the same operation.

 In gardening, ventilation and watering operations are traditionally done with different tools and means, but never to our knowledge, in a single operation.

 Some hanging tools, for example, adapted on agricultural tractors, in agricultural operations bury "slurry" in the ground to meet health criteria but, do not work the soil for the purpose of cultivation or maintenance of culture and especially not in fields in short of exploitation. These tools in no way recall the use of the tool according to the invention.

 The concept of the gardening tool according to the invention makes it possible to improve the working of the soil and watering for example, because the hoeing operation for example, so beneficial to a vegetable garden is carried out at the same time as the watering operation, precisely and efficiently. These two simultaneous operations considerably improve the state of cultivation of the soil by creating deep watered soil and aerated soil on the surface.

 Hoeing makes it possible to aerate the soil to oxygenate the roots around plants or shrubs for example, but watering, if it is carried out after this operation, destroys the effects of hoeing because the runoff of water from 'A watering can, a water jet, or an automatic sprinkler, which operates over the ground create a crust of earth which hardens as it dries.

 The concept of the gardening tool according to the invention allows other actions, all equally important and useful, offering numerous advantages. Indeed, hoeing / watering with the claw according to the demonstration, for example, allows a substantial saving of water, because thus injected deep into the soil, it approaches the roots as close as possible, and water them first.

In this hoeing / watering operation, as in the other adaptations of gardening tool, not limiting in number, it is possible to add to the watering of the treatment elements against diseases or fertilizers, and this in reduced dose since it is possible to limit the treatment only near the roots.

 The use of the gardening tool according to the invention is very effective in sloping ground because hoeing / watering eliminates runoff and therefore prevents soil erosion.

 It is also possible to treat the soil with a powder, see a paste injected under pressure thanks to an autonomous pressure device for example, which will pass into the gardening tool.

 I1 in fact comprises, according to a first characteristic in a simple design, a working handle which may be standard, connected to a source of supply of pressurized water, running water tap, or autonomous mobile tank with pressurization, and equipped with a trigger to trigger at will the arrival of water in the tool which can be interchangeable, claw, hoe, scraper, rake, dibber, for example depending on the work to be done. This tool can have a handle extension, more or less long, or more or less large to obtain a tool allowing standing work. This handle is preferably presented as a hollow body to conduct the water to the tool. This tool can be a claw of which one or more teeth will be pierced at, or towards their end, with one or more holes if useful, and preferably oriented opposite the direction of attack or working in the ground to reduce the risk of blocking a water ejection hole while working the tool.

 According to particular embodiments.

- The handle can be a standard handle already used for portable sprayers for example, which allows interchanging several forms of different tools.

- The handle of the tool threaded into the handle, it is made of metal or rigid tubular plastic in its simplest design, to ensure the circulation of water.

- The claws made of metal or rigid tubular plastic for example, in a simple configuration, can be secured to the handle and assembled in a sealed manner by welding for example, to allow the arrival of water, without leakage in order to keep the pressure at the ends of the claws before it is ejected.

- The end of each claw cut into a point for example, is pierced with a hole to allow the ejection of water, of relatively precise diameter to ensure precise metering of water during the work of the tool. In the case where the claw is made of plastic, it can be covered with a metal cap, drilled with a hole, and glued waterproof.

- The end hole of a claw, for example, will preferably be located opposite the attack side of the latter in the ground to reduce the risk of blockage. This hole can be lateral for example and preferably located in the area of the claw remaining under the ground during work. It can be envisaged several holes per claw distributed and oriented differently if this is useful.

- The accompanying drawings illustrate the invention.

 FIG. 1 represents the tool according to the invention separated from its handle, in a claw formula and in hand tools. In A, section in section of the handle and in B section in section of one of the claws.

 FIG. 2 represents the tool according to the invention working in the ground with the water jet oriented opposite to the working direction of the claw in the ground and revealing the aerated top of the ground and the bottom of the ground ( hatched) moistened or watered.

 Figure 3 shows the tool according to the invention working around a plantation, close to the roots.

 FIG. 4 represents the same tool according to the invention provided with a valve or an adjustment valve, for a more precise adjustment of the water flow rate.

This valve can be adapted to any other place on the tool, or on the handle and any other existing or to be created tools.

- Figure 5 shows the same tool according to the invention with an intermediate handle of greater length or larger diameter for example, allowing use of the tool in a standing position. This handle extension accepts all other tools.

- Figure 6 shows a scraper tool which allows for example weeding and a weedkiller treatment in depth in the same operation. The cup
C shows the positioning of the water ejection hole.

- Figure 7 shows a hoe tool and its section C is common to Figure 6 for positioning the water ejection hole.

- Figure 8 shows a dibble tool with several holes at the periphery allowing watering of the hole during its creation and therefore before transplanting. In this tool configuration it can be seen that the handle can be an integral part of the tool, and a valve could be integrated in the handle.

- Figure 9 shows a rake tool with four teeth, for example, with a hole at their ends.

- Figure 10 shows a possible variant of sections and sections of the handle, of a claw tooth with a water conduit of smaller section inside.

- Figure It shows a possible variant of cuts and sections of the handle or claw tooth with a water section of smaller section outside. The water conduit is not necessarily integral over the entire length of the tool but will become integral at the end of the tooth of the claw for example, not shown.

With reference to these drawings, the concept of the gardening tool comprises a handle (1) whose section A in its simplest form of tube and whose outside diameter may correspond to a dimension adaptable to a standard handle (2) a pressure sprayer available on the market. This handle (1) will be equipped with different working forms to form interchangeable tools, or fixed if each of them has a suitable integral handle. FIG. 1 represents a claw tool with three tooth teeth (4), (5), (6) integral (7) with the handle (1) and sealed assemblies. Each tooth end, of pointed shape, for example, (8), (9), (10) has towards its end for example, a hole (11), (12), (13) oriented in the opposite direction (17 ) in the working direction of the tool, shown in Figure 2. The section
B of teeth in its simplest form shows a tube. The handle (2) has a clamping system (3) for the handle (1) when it is fitted, and it is preferably equipped with a trigger system (14) for better dosing of the water continuously or intermittently for example. In the handle (2) there is a flexible hose (15) supplied with pressurized water supplied for example by a portable sprayer tank or supplied by water from a garden hose connected to city water for example . FIG. 2 represents in profile a "claw" tool in working in the ground (16) which shows the orientation of the water jet (17) opposite to the working direction, the area of earth shaded, wet , watered (18) and the top soil (19) aerated and moist.

FIG. 3 represents this same "claw" tool working around a plantation (20).

 In an embodiment according to Figure 4 the handle (1) can be equipped with a flow control valve or valve (21) located for example at the connection (6) with the claws (3), (4) , (5). This valve (21) can be adapted to all other tools.

 In the embodiment according to Figure 5 the handle (1) is equipped with an intermediate handle (22) which is connected to the handle (2). The intermediate handle (22) which makes it possible to work upright can be of larger diameter for better rigidity and better grip.

 In the embodiment according to FIG. 6 of a scraper tool (24), it can be seen in section C that the hole (25) on the two arms (26) and (27) orients the water jet (28) in the opposite direction of tool work.

 In the embodiment according to FIG. 7 of a hoe tool (29), the section is the same as section C of FIG. 6.

 In the embodiment according to FIG. 8 of a planter tool (30), the holes (31) are distributed over the periphery of the cone (32) to ensure uniform watering of the hole.

 In the embodiment according to FIG. 9 of a rake tool (33) the four teeth, for example, (34), (35), (36), (37) also have a hole (38), (39) , (40), (41) oriented opposite the working direction.

 In the embodiments according to FIG. 10 which represent the sections of the handles or of the teeth of the tools can have a cylindrical (42) or square (43) section for example, representing a round (44) or rectangular (45) duct for example to the interior.

 In the embodiments according to FIG. 11 which represents the sections of the handles or of the teeth of the tools can have a cylindrical (46) or rectangular (47) section for example, having a round (48) or square (49) duct for example , outdoors.

 In an embodiment according to Figure 12 which shows in section, a claw (4) made of rigid plastic or metal (4) can be dressed with a cynical cap (50) for example, pierced with a hole ( 51) and sealed or welded tight (52).

 According to a variant not illustrated, each hole can be equipped with an automatic shutter which covers the latter as soon as there is no longer any water pressure.

 The dimensions of each and of the intermediary (ies) will be adapted to each use.

The concept of gardening tool according to the invention is particularly intended for working and simultaneously watering the soil in a single operation.

Claims (10)

 1 / Concept of a gardening tool which buries a liquid under pressure in the soil and which works the soil in the same operation, characterized in that it comprises a hollow handle (1) to ensure the passage of water.  2 / Concept of gardening tool according to claim 1 characterized in that the handle (1) is fitted into the handle (9) and is locked in (3) to be supplied with water.  3 / Concept of gardening tool according to claim 1 characterized in that this handle (1) is equipped with different working forms to provide interchangeable tools, claw, hoe, scraper, rake, dibber for example.  4 / Concept of gardening tool according to the preceding claim characterized in that the claw tool shapes (3), (4), (5) are assembled tight (6) on the handle (1) so as not to lower pressure due to possible leaks.  5 / Concept of gardening tool according to the preceding claim characterized in that the ends (7), (8), (9) of the claws (3), (4), (5) are preferably pointed.  6 / Concept of gardening tool according to claims 3, 4, 5 characterized in that the ends of the claws (3), (4), (5) are pierced with a hole (10), (11), ( 12) preferably oriented opposite to the direction of work.  7 / Concept of gardening tool according to any one of the preceding claims, characterized in that each tool can be equipped with a valve or a tap for adjusting the water flow rate (21) according to the quality of the desired work and watering, or viscosity, for example if a fertilizer had a pasty appearance.  8 / Concept of gardening tool according to any one of the preceding claims, characterized in that the handle (1) of the tool can be connected to the handle (2) by an intermediate handle (22) of a larger diameter. important, if necessary, also having a water supply duct, to allow standing work.  9 / Tool concept according to any one of the preceding claims, characterized in that the handle (2) can be connected either to a portable tank with pressurization of water, or to a garden hose supplied by the city water for example.  10 / Concept of gardening tool according to claim 2 characterized in that each tool can have a handle (1) connected integrally to the handle (2) such as the dibber, for example in FIG. 8.