Seed duct for a seed drill

Abstract

Seed line for a seed drill, in particular a precision seed drill, which is arranged between a metering device (4), such as a singulation device, and a dispensing and / or depositing device (3), wherein the seed line (6) has at least two separation points (7 and 8) dividing the seed line (6) into a first and a second section, wherein an intermediate section (9) of the seed line (6) is arranged between the two separation points (7 and 8) of the seed line (6), bridging the first and second sections of the seed line (6), wherein connecting elements (10 and 11) that can be opened and closed without tools are assigned to the separation points (7 and 8) between the sections of the seed line (6) and the intermediate section (9), wherein the connecting elements (10 and 11) are designed as cone-like male (10) and female parts (11) that interact together.wherein at least one of the connecting elements (10 and 11) is assigned a spring element (12) which holds the seed lines (6) and the intermediate line (9) in the connecting and closed position, characterized in that the cone-shaped connecting elements (10 and 11) are held in the connecting and closed position exclusively by the spring element (12).

Description

[0001] The invention relates to a seed delivery system for a seed drill according to the preamble of claim 1.

[0002] Such a seed line for a seed drill is a known design. This seed line is attached to the metering device by means of a nut-like clamping connection or a bayonet-like connection. Thus, a positive-locking, tool-like connection between the seed line and the metering device is used, secured by rotation. The tool-like connection created by rotating components of the nut-like clamping connection or bayonet-like connection, with its rotatable locking elements, can become rubbing or stiff, especially after prolonged use, inevitably requiring the use of a tool to release the connection.

[0003] The invention is based on the objective of creating a simplified and easy separation of the seed line in the area of ​​the metering device without the use of rotatable locking elements.

[0004] This problem is solved according to the invention in that the seed line has at least one, preferably at least two, separation points that divide the seed line into a first and a second section, that an intermediate section of the seed line is arranged between the two separation points of the seed line, bridging the first and second sections of the seed line, that connecting elements between the sections of the seed line and the intermediate section, which can be opened and closed without tools, are assigned to the separation points, that the connecting elements in the area of ​​the separation points are designed as cone-like male and female parts, and that at least one of the connecting elements is assigned a spring element that holds the seed lines and the intermediate section in the connected and closed position.

[0005] As a result of these measures, the locking elements no longer need to be twisted. This allows the seed tube to be easily opened at the designated separation point. The removable intermediate tube is held in its connected and closed position by the spring element. Furthermore, the conical male and female parts, in conjunction with the spring element, ensure a secure hold and centering of the intermediate tube within the seed tube. This also results in a good seal between the intermediate tube and the rest of the seed tube.

[0006] Easy retention of the intermediate pipe in the seed pipe, as well as the possibility of easy disassembly and removal of the intermediate pipe at the separation point of the seed pipe, is ensured by the fact that the cone-shaped connecting elements are held in the connecting and closed position exclusively by the spring element.

[0007] An advantageous assignment of the spring element to the intermediate line is achieved by assigning the spring element to the intermediate line and having a conical shape on the side facing the seed line.

[0008] In order to easily assign the spring element to the intermediate line, it is provided that the spring element is tubular and surrounds the intermediate line.

[0009] A simple design of the spring element can be achieved by designing the spring element as a rubber spring, foam element and / or rubber spring-like tube element.

[0010] For example, to make it easy to remove blockages in the seed line, the intermediate pipe in the seed line is designed to be removable.

[0011] Further details can be found in the example description and the drawings. These show Fig. 1 a single-seed seeding unit of a seed drill designed as a single-seed seed drill in schematic representation and in side view, wherein the seed line is closed at the separation point, Fig. 2 the seed pipe area to be separated, shown on a larger scale Fig. 1 in side view, Fig. 3 the single-seed seeding unit in the same representation as Fig. 1, however, the seed line is open at the separation point, Fig. 4 the seed pipe area to be separated, shown on a larger scale Fig. 2 in perspective view, Fig. 5 the seed pipe area to be separated, shown on a larger scale Fig. 4 in side view and Fig. 6 the seed pipe with the removable, separable part of the seed pipe in section A - A.

[0012] The single-seed seeder 1 has a frame 2 on, which is to be attached in a known manner (not shown) to a crossbeam of the seed drill, which is designed as a single-seed drill. Several single-seed drilling units are arranged in a known manner. 1 arranged side by side, spaced apart, on a crossbeam (not shown). On the frame 2 of the single-seed seed drill 1 is the squad unit 3 , the singulation device 4 and the seed container 5 arranged. Between the singulation device 4 and the unit 3 The trained dispensing and / or storage facility is the separably trained seed line. 6 arranged. The seed pipeline 6 indicates the two separation points 7 and8 with the intermediate line that is to be inserted and removed between them 9 on.

[0013] The intermediate line 9 and the seed pipeline 6 indicate in the area of ​​the separation points 7 and 8 Interacting cone-shaped male parts 10 and mother parts 11 up. In the area of ​​the lower separation point 7 is in the seed pipeline 6 the tubular spring element 12 arranged. This spring element 12 is designed as a rubber spring and rubber spring-like tubular element and surrounds the intermediate line. 9 in their lower area. The spring element 12 It can also be designed as a foam element.

[0014] Thus, the seed pipeline 6 about the two separation points 7 and 8 divides it into a first and a second area. Between the two dividing points 7 and8 the seed management 6 is the intermediate line 9 the seed management 6 , which comprise the first and second sections of the seed pipeline 6 Bridging connections are arranged. The separation points 7 and 8 are, as described above, tool-free opening and closing devices that interact as cone-shaped parent components. 10 and mother parts 11 trained. The lower separation point 7 and the one who is considered a father 10 and mother parts 11 formed connecting elements between the seed line 6 and the intermediate line 9 is the spring element that holds in the connecting and closed position 12 assigned.

[0015] This allows the seed pipeline to be... 6 at the designated trend points 7 and 8 in a simple way by the intermediate line 9 to be removed. Via the spring element 12will the intermediate element 9 held in its connecting and closed position. Furthermore, a secure hold and centering of the intermediate conductor is ensured. 9 in the seed pipeline 6 through the cone-shaped and cooperating father- 10 and mother parts 11 in conjunction with the spring element 12 This is guaranteed. At the same time, a good seal is achieved for the intermediate line. 9 to the other areas of the seed management 6 .

[0016] This also makes it easy to hold the intermediate line. 9 in the seed pipeline 6 as well as the possibility of easy disassembly and removal of the intermediate line 9 at the separation points 7 and 8 the seed management 6 This is ensured. The cone-shaped connecting elements provide the necessary support. 10 and 11 exclusively through the spring element 12the intermediate line 9 in the seed pipeline 6 in connected and closed position.

[0017] The spring element 12 is the intermediate line 9 assigned and on the seed pipeline 6 The side facing the spring is conically shaped. This results in an advantageous positioning of the spring element. 12 with a good seal between the intermediate pipe 9 and the seed pipeline 6 in the area of ​​the separation points 7 and 8 .

[0018] For example, to remove blockages in the seed line 6 The intermediate line can be easily eliminated. 9 from the seed pipeline 6 remove.

[0019] The spring element 12 indicates the closed position of the seed tube 6 , as in the Fig. 1, Fig. 2, and 4 to 6, show a preload, so that the spring element 12 the separable part 9 the seed management 6 between the separation points 7 and 8 the seed line. Thus, it is solely due to the preload of the spring element. 12 the connecting element 9 the seed management 6 held in the closed position.

[0020] The function to create the intermediate line 9 the seed management 6 The process for moving it from the connected or closed position to the open position, and vice versa, is as follows:

[0021] For example, if the seed line is blocked 6 or for cleaning the seed line 6 the seed pipeline 6 in the area of ​​the separation points 7 and 8 If it needs to be opened, it can be done simply by pressing the intermediate line.9 downwards against the spring force of the spring element 12 The seed tube 6 can be pressed downwards without tools, so that the seed tube 6 to open the detachable intermediate line 9 the seed management 6 to swivel to the side, as the Fig. 3 shows, and then to take it out.

[0022] If the seed line is blocked 6 Once this is removed or cleaned, the intermediate line can be... 9 the seed management 6 back into its closed position between the separation points 7 and 8 reinsert so that the connection of the seed line 6 in the area between the separation points 7 and 8 has been restored.

[0023] Thus, the inventive design eliminates the need for an additional bayonet- or screw-like locking element in the area of ​​the intermediate line. 9 in the area of ​​the separation points 7 and 8 can be dispensed with.

Claims

[1] Seed line for a seed drill, in particular a precision seed drill, which is arranged between a metering device (4), such as a singulation device, and a dispensing and / or depositing device (3), characterized bythat the seed line (6) has at least one, preferably at least two, separation points (7 and 8) that divide the seed line (6) into a first and a second section, that an intermediate section (9) of the seed line (6) is arranged between the two separation points (7 and 8) of the seed line (6), bridging the first and second sections of the seed line (6), that connecting elements (10 and 11) that can be opened and closed without tools are assigned to the separation points (7 and 8) between the sections of the seed line (6) and the intermediate section (9), that the connecting elements (10 and 11) are designed as cone-like male (10) and female (11) parts that interact in the area of ​​the separation points (7 and 8), that at least one of the connecting elements (10 and 11) has a spring element (12) that holds the seed lines (6) and the intermediate section (9) in the connected and closed position is assigned. [2] Seed conduit (6) according to claim 1, characterized by , that the cone-shaped connecting elements (10 and 11) are held in the connecting and closed position exclusively by the spring element (12). [3] Seed conduit (6) according to at least one of the preceding claims, characterized by , that the spring element (12) is assigned to the intermediate line (9) and is conically shaped on the side facing the seed line (6). [4] Seed conduit (6) according to at least one of the preceding claims, characterized by , that the spring element (12) is tubular in shape and encloses the intermediate line (9). [5] Seed conduit (6) according to at least one of the preceding claims, characterized by , that the spring element (12) is designed as a rubber spring, foam element and / or rubber spring-like tube element. [6] Seed pipeline (6) according to at least one of the preceding claims, characterized by, that the intermediate line (9) is arranged to be removable in the seed line (6).

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