JPH042201B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an intertill weeder, and more particularly to an intertill weeder for expanding and softening soil without disturbing the soil surface.

For example, in British Patent Application No. 1493346 and British Patent Application No. 1574412 (Additional Patent) No. 1574412, a blade extends downward at an acute angle to the vertical and is supported at its upper end so that it can be towed across the ground with the blade facing forward. It has been proposed to provide a soil softening device with a blade. The blade is contoured to plow the soil above the blade and soften the soil beneath the blade without compacting it. Although such equipment has been manufactured and sold by the applicant,
This equipment has been found to have significant problems due to the lateral forces exerted on the blade during use, which are transmitted to the towing vehicle and cause the vehicle to become unsafe and skid.

An object of the present invention is to provide an improved intertill weeder that is capable of expanding and softening soil below the ground surface.

According to the invention, an inter-till weeder has a frame and a section extending downwardly into the soil in a plane substantially parallel to the way of travel through the soil with the blade facing forward during operation; at least one soil tillage implement mounted on a frame, the blade being inclined at an acute angle to the vertical and comprising a blade for tilling the soil above the blade; At the lower end of the ramp, the ramp has a support leg at the leading edge with a rearwardly upwardly sloping upper surface and upright, rearwardly extending sides, the sides extending substantially in the direction of travel. The vertical sides are parallel and have sufficient surface area to counteract the lateral thrust exerted on the tool by engaging the soil as the sloping blade acts on the soil.

Preferably, its sides are formed by replaceable plates perpendicular to the support legs. Advantageously, the leading edge of the sloping surface of the support leg extends beyond the leading edge of the blade, and the rear part of the side surface extends behind the rear part of the trailing edge of the blade.

Conveniently, the sloped upper surface of the support leg is in the form of a replaceable plate provided on the body and whose leading edge extends beyond the body of the support leg.

The blade part is formed by a downwardly sloping part and an integral upper upright part, and the upright part and the slanted part are connected by an adjacent curved part, and the upright part is formed by the blade part. Preferably, it has attachment means for fixing it to the frame. The leading edge and lower part of the blade can be fitted with replaceable edge members in the form of at least one plate on the angled leading edge.

The trailing edge of the blade can be cut with a member that can pivot about the rear end of the sloping section, and the pivotable member can be cut in line with the blade or in an upward direction relative to the blade. It can be adjusted to have a certain slope. Preferably, the pivotable member is provided at the lower end of the blade adjacent to the rearwardly extending portion of the support leg.

The invention will be explained in detail below with reference to figures showing one embodiment.

The inter-till weeder has a frame adapted to be mounted on a three-point support system of a tractor.
The frame has a front transverse beam 10 and a rear transverse beam or tool bar 11. The front beam 10 has laterally spaced brackets 12 and 13 for connection in a known manner to the lower arm of a three-point support (not shown) of the tractor. The beam 10 is perpendicular to the direction of travel A of the intertiller weeder, and the rear beam 11 is inclined to the direction of travel A.

Beams 10 and 11 are longitudinal beams 14 and 15
beam 14 is interconnected with beam 1
One end of beam 15 is connected to one end of bracket 13, and the other end of beam 10 is connected to bracket 12. As shown, beam 1
1 consists of two interconnected parts 11A and 11B with a flanged connection 16. If desired, portion 11B of beam 11 may be omitted, as will be explained below.

Beams 10 and 11 are also connected by a generally triangular truncated support member or headstock 17 which has a bracket 18 at its front upper end for attachment to the upper link of the three-point support. There is.

At the rear end of the beam 11 there is a grounding wheel device 20 having a pivot arm 21 and a height adjustment device 22, the grounding wheel 23 allows the frame to be adjusted to an adjustable height relative to the ground when using the intertill weeder. It is attached to the end of arm 21 for support. In this embodiment, the beams 1 are arranged at equal intervals along the beam 11.
Attached to 1 are four culti tool assemblies 25. Culti tools 25
are the same, and because the beam 11 is inclined with respect to the direction of travel A, the culturing tools are arranged in the form of a ladder, that is, each tool is provided in a sequentially retracted state.

Each cultivating tool 25 is attached to the beam 11 by a mounting plate 26 above the beam 11, which is secured to the body 27 below the beam 11 by four fixing bolts 28. The main body 27 extends parallel to the traveling direction A. Culti blade 30 shown in more detail in FIG.
is attached to the rear of the main body 27 by bolts 19. A rotating disc 32 is provided at the front end of the main body 27 in advance of the culturing blade 30 to cut an oblique groove in the ground. The disc 32 is attached to an arm 33, which receives the force of a spring downward and resiliently presses the disc 32 toward the ground when the intertill weeder is in operation, and removes the cultivar. It serves to create a vertically sloping groove in the ground that is aligned with the opening made in the ground by the blade 30.

Referring specifically to FIG. 4, the cultivar blade 30 is made of sheet steel and consists of a blade portion 35 having an upright portion 36 drilled at 37 for fastening to the body 27 with two bolts. Section 36 extends vertically and is integral with an inclined section 38 connected by a curved section 39 .
The blade portion 35 is designed to have sufficient length even with a relatively thin cross-section which will result in a relatively narrow opening in the ground after the blade is pulled with the blade facing forward. Made of high purity steel.

The inclined portion 38 of the blade portion serves as a working portion and is tapered toward the lower end. Part 38
The front end 41 of is angled so that the lower end thereof is more forward in the direction of travel than the upper end,
Because the section 38 is tapered, the trailing edge 42 of the blade section 38 is angled more forwardly than the leading edge 41.

At leading edge 41 bevel 43 is shaped to receive a replaceable leading edge member 44 . At the trailing edge 42 there is a hinge bracket 4 at the site 38.
5 is provided by means of which an adjustable flap 47 is attached to the culti blade.

Three adjacent leading edge members 44 are mounted along the edge 41, each bolted to the site 38 with a hole 46, so that each member 44 can be attached as the culti blade is towed across the ground. It has a bevel 49 that allows the soil to be more easily tilled since the soil passes over the culturing blade. The lower ground surface of each member 44 is flat and adjacent the underside of section 38 and is located parallel to the direction of travel. In this way,
The soil under the cultiform blade is not compacted meaninglessly while the culti blade passes.

The flap 47 is for selectively increasing the digging action of the tool. flap 4
7 is in the form of a plate and is welded along the edge of a tube 48 through which hinge pins which are engaged with both ends of the bracket 45 pass. Therefore,
The flap 47 can be pivoted about a hinge axis parallel to the plane of the inclined section 38 from a position in which the flap is aligned with the section 38 to a position in which the flap is raised. When the flap 47 is in the raised position,
The upper surface of the flap 47 is above the upper surface of the section 38 and provides further tilling action to the soil passing over the top of the cultivating implement.

Flap 47 is held in any raised position by screws (not shown). The screw has its axis perpendicular to the plane of the flap, can be screwed in and removed, and is engaged with the back side of the flap. The flap 47 has a lower edge parallel to the lower end of the blade portion 38;
The other edge is shaped like a truncated triangular shape that narrows towards the trailing edge.

In some cases the flap is removed.

A foot assembly 50 (see particularly FIG. 5) is welded to the lowermost end of the blade and serves to guide and stabilize the movement of the culturing implement through the ground. The main body 5 has various replaceable wear parts fixed to the support leg 50.
1 is included. A plate 52 inclined rearward and upward is attached to the front edge of the main body 51 with bolts. The plate 52 has a diagonally cut front edge 53.
, the slope of the top surface of which moves downward as the culturing tool enters the soil to ensure that the culturing tool is positioned and maintained at a constant depth in the soil. The plate 52 protrudes forward from the front edge of the blade and is placed on a portion of the main body 51. On both sides of the inclined plate 52 are side plates 54 attached to the main body 51.

The body 51 extends rearwardly and projects from the trailing edge of the blade adjacent the lower edge of the flap 47 (if installed). A plate 55 is placed along one lateral side of the body 51 to serve as a support member to withstand the lateral thrust on the tool caused by the recoil in the sloping blade when moving through the soil. ing. Such a thrust acts in a direction that tends to straighten the blade, ie, in the direction indicated by B in FIG.

A plate 55 is attached to the body with bolts 56, which plate extends vertically and parallel to the direction of travel. The plate 55 has lateral sides in contact with the soil next to the support legs to withstand the lateral thrusts B. The lateral sides provide a substantial surface area sufficient to resist the lateral thrust of the blade combination, which varies depending on the length and slope angle of the blade relative to the size of the support leg and the nature of the soil. You will see that

Thus, the support legs 50 maintain the cultivating implement at a predetermined depth, prevent lateral moments acting on the cultivating implement that would create rotational moments in the implement frame and tend to cause the tractor to skid, and prevent the cultivating blades from acting on the cultivating implement. It performs three functions to assist in the initial entry into the ground.

The implements described and illustrated are capable of producing a swelling and softening effect on the soil over a substantial width, and the culturing implements interact to intercultivate over the width of the implement. If necessary, the intercultivation width can be reduced by removing a portion of the culturing tool, ie section 11B of beam 11. The cultivating tool 25 can be used independently or in combination with other cultivating tools.

The swelling and softening effect is obtained by tilling the soil by making it taut and breaking the soil over the blade to create fissures without disturbing the soil surface in any meaningful way. In order to achieve this swelling and softening of the soil, the blade section is set at approximately 25 to 60 degrees to the vertical line in the direction transverse to the direction of travel.
It is sloping.

In another aspect, the support leg may be removably attached to the blade so that when the surface of the support leg becomes worn,
The support legs may be made as a single piece, for example by forging, so that they can be replaced. Another embodiment may employ a replaceable wear part in which the front end and the sides are made as a single replaceable part that fits snugly into the body of the support leg, and the wear part may be removably attached to the body. Such replaceable parts may have a socket-like opening into which the body is fitted, and the body is fitted into the socket during use. Such instruments may use a single fastening member to hold the parts to the body.

[Brief explanation of drawings]

FIGS. 1 and 2 are perspective views of an intertill weeding machine. FIG. 3 is a front view of the weeding machine shown in FIGS. 1 and 2. FIG. FIG. 4 is a side view of the cultivating blade of the weeding machine in FIGS. 1 to 3. FIG. FIG. 5 is an enlarged perspective view of the support leg of the weeding machine shown in FIGS. 1 to 4. FIG. 10, 11, 14, 15...beam, 11B...
...Additional member, 17... Support shaft, 25... Cultivation tool, 30... Cultivation blade, 35... Blade portion, 37...
...attachment means, 38...slanted portion, 44...front edge member, 47...flap, 50...support leg, 5
2...Plate.

Claims (1)

[Claims] 1. A frame 10, 11, 14, 15 and at least one cultivating tool 2 attached to the frame.
5, the culturing tool includes a culturing blade 30 having a portion 38 that extends substantially parallel to the direction of movement of the cultivating tool in the soil and inclined at an acute angle with respect to the vertical line during operation, and further includes a culturing blade 30 for cultivating the soil. The tool has supporting legs 50 parallel to the direction of travel at the lower end of the inclined section 38.
The support leg has an upper surface whose front edge slopes rearwardly upward, and a surface extending rearwardly from the front edge substantially parallel to the direction of travel and having a surface sufficient to resist lateral thrust. An intertill weeding machine, characterized in that it has a vertical side having a region; 2. The inter-till weeding machine according to claim 1, further comprising a replaceable plate 55 on the vertical side surface of the support leg 50. 3. Claim 1 or 2, wherein the front edge of the inclined upper surface of the support leg 50 is positioned so as to protrude further than the front edge of the inclined portion 38. Intertillage weeding machine. 4. The inter-till weeding machine according to claim 1, 2 or 3, wherein the rear end of the vertical side surface extends to the rear of the lower end of the rear edge of the inclined portion 38. 5 Further, on the inclined upper surface of the support leg 50,
5. The inter-till weeding machine according to claim 1, 2, 3 or 4, in which a replaceable plate 52 is attached, the front edge 58 of which extends beyond the main body 51 of the support leg. 6 Part 38 where the culti blade 30 is inclined
The upright part 36 is integral with the upper upright part 36, and the upright part and the inclined part are connected by an adjacent curved part, and the upright part is used for fixing the culti blade to the frame. Claims 1, 2, 3, 4 or 5 having attachment means 37
Intertillage weeding machine. 7. Intertillage weeding according to any one of the preceding claims, in which at least one replaceable leading edge member 44 with an angled leading edge is attached to the lower leading edge of the inclined section 38. Machine. 8 A member 47 that can pivot around the rear end of the inclined portion 38 is attached to the inclined portion 38.
provided at the lower part of the trailing edge, the pivotable member being adjustable so as to be aligned with the plane of the region or in a particular position inclined rearwardly upward relative to the plane; An intertill weeder according to any of the preceding claims, and wherein the pivotable member constitutes a generally triangular shape that narrows upwardly. 9 has a headstock 17 adapted to be attached to the top link of the three-point support of the tractor, which headstock is connected to the front and rear beams 10, 1 of the frame;
1 extending between and attached to their frames and extending upwardly from the frames at its forward end. 10 The rear frame member or beam 11 is inclined with respect to the direction of travel and can be fitted at its rear end with an extension member 11B designed to hold at least one cultivating device. An intermediate tillage weeding machine according to claim 9.