阅读说明：本技术 用于农业作业的用具 (Implement for agricultural operations ) 是由 卢西亚诺·佩格拉罗 于 2020-04-06 设计创作，主要内容包括：本发明涉及一种用于农业作业的用具(1),该用具设置有两个主要元件,即作业工具(2)和支撑元件(3),这两个主要元件制作为借助紧固装置(4)彼此可联接。这种装置(4)接收在制做在支撑元件(3)上的开口(5)中和制做在作业工具(2)上的邻接表面(60、61)中；所述邻接表面(60、61)有利地成形为使得工具(2)可以根据装置(4)的端部中的一个端部是否与两个邻接表面(60、61)中的一个邻接表面邻接或与另一个邻接表面邻接而与支撑元件(3)联接和锁定。(The invention relates to an implement (1) for agricultural work, provided with two main elements, namely a work tool (2) and a support element (3), which are made coupleable to each other by means of a fastening device (4). Such means (4) are received in openings (5) made in the support element (3) and in abutment surfaces (60, 61) made on the work tool (2); the abutment surfaces (60, 61) are advantageously shaped so that the tool (2) can be coupled and locked with the support element (3) depending on whether one of the ends of the device (4) is in abutment with one or the other of the two abutment surfaces (60, 61).)

1. An implement for agricultural work, comprising a work tool (2) and a support element (3) connected to the work tool (2),

said work tool (2) comprising at least one shaped area (22, 32) designed to be positioned and reversibly connected with said support element (3) by inserting fastening means (4) into a hole or opening (5),

wherein the work tool (2) comprises, at the at least one forming area (22, 32), respective abutment surfaces (60, 61) made on opposite portions of the work tool (2) that allow insertion and accommodation of at least a portion of the fastening device (4) so that the fastening device (4) can slide in the opening (5) from a locking position to a release position, or vice versa, allowing locking or releasing, respectively, the work tool (2) onto or from the support element (3), characterized in that the fastening device (4) comprises:

-a head (41) and a central body (42), wherein the central body (42) has a cross section that is larger with respect to the cross section of the head (41);

-a rod (40) connected to the central body (42), wherein the rod (40) has a cross section that is smaller with respect to the cross section of the central body (42),

wherein the fastening device (4) remains inserted in the opening (5) in an assembled position, according to which the work tool (2) is constrained to the support element (3), and in an unassembled position, according to which the work tool (2) is released from the support element (3),

wherein the head (41) abuts a first one of the abutment surfaces (61) in the locked position and the central body (42) abuts a second one of the abutment surfaces (60) in the released position.

2. An implement for agricultural operations according to claim 1, characterized in that the fastening means (4) is a substantially cylindrical pin.

3. An implement for agricultural operations according to at least one of the preceding claims, characterized in that the central body (42) comprises a groove (43) inside which a braking element (50) is housed, suitable for interacting by interfering with the opening (5) so as to ensure the coupling stability between the fastening means (4) and the opening (5).

4. An implement for agricultural operations according to claim 5, characterized in that the braking element (50) is annular or C-shaped and made of steel, elastic steel, polymer or elastomeric material.

5. An implement for agricultural operations according to any one of the preceding claims, characterized in that the implement is a subsoiler or ripper adapted to break more or less deep soil.

6. An implement for agricultural operations according to at least one of the preceding claims, characterized in that a first of said abutment surfaces (60, 61) is grooved to allow insertion and removal of the tool (2) also simply by sliding on the support element (3) when the central body (42) abuts the first abutment surface (60) and is in the release position.

7. An implement for agricultural operations according to any one of the preceding claims, characterized in that at least a second of the abutment surfaces (60, 61) is made to allow the tool (2) to slide only when the head (41) of the fastening device (4) does not protrude from the opening (5) and therefore when the fastening device (4) is in the release position.

Technical Field

The present invention relates to the field of agricultural implements and equipment for cultivating soil. The invention relates in particular to an agricultural implement comprising a tool for cultivating soil and a support element that can be fastened to an agricultural vehicle, wherein such a support element can be disconnected from the vehicle itself.

Background

In agriculture, it is common practice to use farming equipment, commonly defined as tillers; such tools include plows, rake, subsoilers, and the like.

Such implements include a plurality of work elements secured to a support frame of a mobile agricultural vehicle (e.g., a tractor) and prepared to perform soil working procedures such as plowing subsoil, plowing, tilling, minimum tilling, and the like.

The frame of the implement may be secured to and supported directly by the tractor, or may be towed by the tractor, such as via wheels.

Depending on the task to be performed, the work tools may have various shapes and sizes, and they are fastened to a support element, usually having an elongated and/or curved shape, which is called a spring-loaded tine, which in turn is connected to a support frame.

A farming apparatus or tiller includes a support frame provided with a plurality of aligned or offset spring-loaded tines, each spring-loaded tine secured to a work tool.

Due to wear or damage, the work tool may also be removed for replacement with a new tool, or replaced with a different tool when the farmer requires a different operation to be performed on a different soil.

For this purpose, the work tool is reversibly fastened to the connecting end of the support element, for example by means of screws or bolts.

However, due to scale, rust, dirt, soil, etc., the fastening mechanism may be locked, making the releasing operation longer and more difficult, especially if the tiller comprises several spring-loaded tines each with a respective work tool. Irrespective of this, the farmer in any case has to arrange a suitable mechanism for removing the fastening means of the work tool; furthermore, if bolts or the like are involved, they are easily lost once they are removed.

An implement for agricultural operations having technical features that can be considered as the closest prior art to the inventions described below, such features being present in the preamble of the appended claim 1, for example, described in patent documents US2018/288929a1, US8770311B2, US3773114A, GB 2209651A.

To circumvent these drawbacks, the junior work device is conceived to comprise an adapter fastened to the free end of the support element by means of bolts and configured to be engaged by a leg or a bar of the agricultural work machine.

The tool may be assembled on the adapter and locked in the working position. For this purpose, and in order to ensure that the farming tool does not leave the adapter during the work, a special locking mechanism is provided which mutually fastens the tool and the adapter.

The foregoing devices allow for simplifying and speeding up the assembly/disassembly process of the tool to/from the spring-loaded tines, but they also have certain disadvantages. In fact, the locking mechanism may remain locked due to scale, rust, dirt, soil, etc., and prevent the tool from being released from the adapter. Also, the legs may remain wedged and locked to the adapter.

Disclosure of Invention

The objects of the present invention include:

improving the known agricultural work apparatus, the apparatus comprising a work tool and a support element which can be fastened to the frame of the farming vehicle, the work tool and the support element being reversibly couplable to each other;

an agricultural work apparatus is made that allows for easier and faster assembly and disassembly of a jostling tool to and from a corresponding support element (e.g., spring-loaded tines);

an agricultural working apparatus is made which can be associated in any case with a farming machine or a cultivator and which has a robust construction and simple and reliable operation.

These and other objects are achieved by an agricultural implement according to the appended claim 1; further technical details and features are indicated in the dependent claims.

Drawings

The invention may be better understood and implemented with reference to the accompanying drawings, which show by way of non-limiting example some embodiments of an agricultural implement, in which:

FIGS. 1A, 1B, 1C and 1D are perspective views of an agricultural work apparatus of the present invention during assembly and disassembly steps;

FIGS. 2A to 2F are side views of the assembled device;

FIGS. 3 and 4 are cross-sections of details of FIGS. 1A to 2F;

figure 4 shows a detail of a fastening device according to the invention;

figure 5 shows a different embodiment of an appliance according to the invention.

Detailed Description

With reference to fig. 1A to 2F, they show an implement of a farming machine 1 for farming soil, which implement can be associated with a movable farming machine (not shown) and comprises a work tool 2 arranged to interact with the soil and a support element 3 that can be fastened to the farming machine and supported by the work tool 2.

The embodiments described and illustrated in the drawings are particularly indicated for subsoilers or scarifiers, which are suitable for breaking up more or less deep soils; however, the device object of the present invention can be advantageously used for fastening different implements, such as a hoe, a rake or any other agricultural implement suitable for working or interacting with the soil.

The work tool 2 advantageously comprises a work area 21 or an operating part adapted to interact with the soil, and a connecting part 22 or a forming area for removable connection with the support element 3.

In the embodiment shown in the figures, the support element 3 is made in one piece and comprises a hole or opening 5 adapted to connect the work tool 2 to the support element 3, and thus to the farming machine, by means of the insertion of the fastening means 4.

Advantageously, the work tool 2 and the support element 3 may be coupled to each other by means of respective shaped areas 22 and 32, which are complementary to each other, as shown in detail in fig. 1A to 2F.

The operation of the fastening means 4 and its interaction with the elements 2 and 3 can be better understood by means of the side views of fig. 2A and 2F.

They show a possible embodiment of the agricultural implement 1, in which the fastening device 4 is in an assembled configuration, and in particular assembled with two subsoiler implements.

The fastening device 4 is characterized in that it always remains inserted in the opening 5 in the assembled configuration and in the disassembled configuration, and in that it can be moved from the engaged position to the disengaged position by means of a simple sliding in the opening 5. The sliding is obtained by the farmer by acting only on the fastening device 4 by means of a suitable tool, such as a hammer or mallet.

Thus, the fastening device 4 always remains accommodated in the opening 5 and is constructed in such a way that one of its two ends (the rod 40 or the head 41) advantageously protrudes from the opening 5 depending on whether the work tool 2 is released from or locked to the support element 3, respectively.

The work tool 2 is advantageously made with abutment surfaces 60 and 61 which may thus allow the work tool to be positioned on or removed from the support element 3 or locked on the support element 3, respectively.

The abutment surfaces 60 and 61 have the difference: the surface 60 may advantageously be grooved or simply have a profile that serves as an abutment for the device 4, to allow the insertion and removal of the tool 2 by sliding on the support element 3, also when the lever 40 protrudes from the opening 5 and is in the release position; in contrast, the surface 61 is designed to allow sliding of the tool 2 only when the head 41 of the fastening device 4 does not protrude from the opening 5, and therefore when the same device 4 is in the release position.

In summary, the surfaces 60 and 61 obtained on opposite sides of the work tool 2 make it possible for said fastening device 4 to pass from a locking position, according to which said head 41 abuts on the surface 61, to a release position, according to which said rod 40 abuts on the second surface 60, and vice versa.

Fig. 4 shows the structural components of the fastening device 4 in detail. In a preferred embodiment, said means 4 can be a pin, for example made of steel, having a central body 42 with a larger diameter with respect to the ends constituted by the stem 40 and the head 41; this enables the pin to be advantageously coupled with the opening 5 with play (although minimal).

In another embodiment, such a rod 40 (the outline of which is shown in dashed lines in fig. 4) may also be absent: for operating the device it is in fact sufficient that the central body 42 abuts the abutment surface 40 of the work tool 2, and its operation is one that facilitates performing manual operations in the passage from the engaged and disengaged positions.

The surface of the central body 42 also has a groove 43 of given length suitable for housing a braking element 50, advantageously made of steel or elastic steel or elastomeric material, and preferably annular or C-shaped, which interacts by interfering with the walls of the opening 5 and ensures the stability of the coupling.

With reference to fig. 3A to 3C, the work tool 2 is shown in action positioned on the support element 3 (fig. 3A) to better appreciate the operation of the fastening device 4; the fastening device 4 is in the release configuration and its head 41 does not protrude from the opening 5, it being on its own seat. In this way, the rod 40, which protrudes from the opening 5 on the other face of the support element 3 when present, can engage the surface 60 of the tool 2 until its correct positioning on the support element 3.

In this regard, the operator can lock the work tool 2 by simply acting on the central body 42 or, when present, on the rod 40 of the fastening device 4, so as to move it into the locking position (fig. 3B) by applying an axial force in the direction indicated by the arrow F, for example causing the fastening device 4 to slide along the opening 5 and the head 41 to occupy a corresponding seat at the upper surface 61 of the work tool 2; in this way, the head 41 abuts on the surface 61 and the work tool 2 can be held in a locked position on the support element 3.

In order to pass from the release configuration (fig. 3C), the farmer need only repeat the same operation in the opposite way, exerting an opposite force on the head 41 of the device 4 according to the direction of the arrow E; in this way, the central body 42 abuts the surface 60, and the work tool 2 can thus be slid on the support element 3 and removed.

This excludes the possibility of accidental or undesired release operations, since the sliding of the fastening device 4 in the opening 5 can only be obtained if an external operator applies a direct force along the axis of said device 4 by means of a tool, for example a hammer or a mallet.

Fig. 5 shows some embodiments of the surface 60 in order to better illustrate its functionality: it is worth noting that such a surface 60 is sufficient to have at least one interference portion, also of minimum size, which can overlap the opening 5, with which the central body 42 of the device 4 can abut when the tool 2 is released.

The fact that the surfaces 60 and 61 are shaped so as to prevent complete sliding and therefore the fastening device 4 from coming out of its own seat advantageously eliminates the possibility of accidental release and/or loss of the pin.

Furthermore, the coupling system made according to the invention allows the operator to easily and quickly assemble and disassemble various tools from the support, whatever the type of tool.

The characteristics of the invention and its advantages appear clearly from the description.

Finally, the invention has been described by way of example only, without limiting its scope of application, according to its preferred embodiments, but it should be understood that an expert in the field can modify and/or adapt the invention without departing from the scope of the inventive concept.

The claims (modification according to treaty clause 19)

1. An implement for agricultural work, comprising a work tool (2), a fastening device (4) and a support element (3) connected to the work tool (2),

the work tool (2) comprising at least one shaped area (22, 32) designed to be positioned and reversibly connected with the support element (3) by inserting the fastening means (4) into a hole or opening (5),

wherein the work tool (2) comprises, at the at least one forming area (22, 32), respective abutment surfaces (60, 61) made on opposite portions of the work tool (2) that allow insertion and accommodation of at least a portion of the fastening device (4) such that the fastening device (4) can slide in the opening (5) from a locking position to a release position, or vice versa, allowing locking or releasing, respectively, the work tool (2) onto or from the support element (3), characterized in that the fastening device (4) comprises:

-a head (41) and a central body (42), wherein the central body (42) has a cross section that is larger with respect to the cross section of the head (41);

-a rod (40) connected to the central body (42), wherein the rod (40) has a cross section that is smaller with respect to the cross section of the central body (42),

wherein the fastening device (4) remains inserted in the opening (5) in an assembled position, according to which the work tool (2) is constrained to the support element (3), and in an unassembled position, according to which the work tool (2) is released from the support element (3),

wherein the head (41) abuts a first one of the abutment surfaces (61) in the locked position and the central body (42) abuts a second one of the abutment surfaces (60) in the released position.

2. An implement for agricultural operations according to claim 1, characterized in that the fastening means (4) is a substantially cylindrical pin.

3. An implement for agricultural operations according to at least one of the preceding claims, characterized in that the central body (42) comprises a groove (43) inside which a braking element (50) is housed, suitable for interacting by interfering with the opening (5) so as to ensure the coupling stability between the fastening means (4) and the opening (5).

4. An implement for agricultural operations according to claim 3, characterized in that the braking element (50) is annular or C-shaped and made of steel, elastic steel, polymer or elastomeric material.

5. An implement for agricultural operations according to any one of the preceding claims, characterized in that the implement is a subsoiler or ripper adapted to break more or less deep soil.

6. An implement for agricultural operations according to at least one of the preceding claims, characterized in that a first of said abutment surfaces (60, 61) is grooved to allow insertion and removal of the tool (2) also simply by sliding on the support element (3) when the central body (42) abuts the first abutment surface (60) and is in the release position.

7. An implement for agricultural operations according to any one of the preceding claims, characterized in that at least a second of the abutment surfaces (60, 61) is made to allow the tool (2) to slide only when the head (41) of the fastening device (4) does not protrude from the opening (5) and therefore when the fastening device (4) is in the release position.

8. A work tool (2) designed to be reversibly connected to a support element (3) by means of a fastening device (4),

wherein the support element (3) is provided with an opening (5) for slidably inserting the fastening device (4),

the fastening device (4) comprises:

-a head (41) and a central body (42) having a cross section that is greater with respect to the cross section of the head (41);

-a rod (40) connected to the central body (42), wherein the rod (40) has a cross section that is smaller with respect to the cross section of the central body (42),

it is characterized in that the preparation method is characterized in that,

the work tool (2) comprises at least one shaped area (22) having an abutment surface (60) overlapping the opening (5) by means of at least one interference portion with which the central body (42) of the device (4) abuts, preventing the fastening device (4) from sliding completely through the opening (5).