JPH06217603A - Apparatus for preventing muddy soil from sticking of tillage cover - Google Patents

Abstract

PURPOSE:To prevent muddy soil from sticking to the inner peripheral surface of a tillage cover of a rotary tiller and enable the easy removal of the muddy soil from the outside if it sticks thereto. CONSTITUTION:This apparatus for preventing muddy from sticking of a tillage cover is obtained by forming openings 7 in parts of the tillage cover 4 near the sticking muddy soil 6 left unscraped by the tillage tines 3 and covering each opening 7 with a vibratile tool 8 composed of an elastic material in a rotary holders 2, 2... provided on the outer periphery of each tillage pipe 1 and the outside of the tillage tines 3, 3' covered with the tillage cover 4 and capable of scraping off the muddy soil sticking to the inner periphery of the tillage cover 4 by the rotation of the tillage tines 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mud adhesion preventing device for a tillage cover. This invention is attached to the front or rear part of an agricultural tractor or the like so that it can be adjusted up and down, and in a rotary cultivator that excavates and cultivates mud on the field surface by driving rotation of a plowing claw, the attached mud attached to the inner surface of the cultivating cover, It is a mud adhesion prevention device for a tillage cover that is hard to adhere and that can be easily removed even if it adheres.

[0002]

2. Description of the Related Art A conventional mud adhesion preventing device is a real-life type shokai 52.
-145107, Japanese Utility Model Laid-Open No. 53-77818, Japanese Patent Laid-Open No. 3-280801, etc.,
It is known that a plate of an elastic material for preventing mud adhesion is attached to the inner peripheral surface of a tilling cover with a space therebetween, slackened, or directly attached.

[0003]

Such a conventional one is intended to prevent the adhesion of mud by the deformation of the plate of the elastic material, and when the mud is not adhering to a certain extent in a dry field, the soil is dropped. However, as the water content increases, the amount of mud that adheres to the surface increases, and the vibration coefficient changes, making it difficult for the soil to fall.

In this case, the operator needs to lift the rotary tiller and remove the adhering mud inside the tiller cover from below, but if a stick or the like is put into the narrow gap between the tillers, the mud is peeled off. There was a problem that mud containing a large amount of water dropped onto the worker's face and arms.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem of the conventional device, and has taken the following technical means. That is, the claw holders 2, 2. ． Cultivating claws 3, 3. ． ．
, And this plowing claw 3,3. ． In the rotary tiller 5, which covers the outside of the plow with the tilling cover 4 and scrapes off the mud adhered to the inner circumference of the tiller cover 4 by the rotation of the tilling claw 3,
An opening 7 is provided in the tilling cover 4 near the adhering mud soil 6 left by the tilling claw 3 and the opening 7 is made of an elastic material.
The mud adhesion prevention device for the tillage cover is characterized by being covered with.

[0006]

The operation of the present invention will be described. First, the cultivating pipe 1 is driven and rotated by the driving force of the agricultural tractor through various transmission parts, and the cultivating claws 3 and 3 attached to the cultivating pipe 1. ． Rotates and runs while excavating and plowing mud on the surface of the field.

At this time, the mud carried by the tilling claws 3 in the tilling cover 4 adheres to the inner peripheral surface of the tilling cover 4, and the mud is adhered by the vibrating tool 8 provided in the vicinity of the attached mud 6. Is pressed. The adhering mud 6 increases with the lapse of time, but since the vibrating tool 8 is located at the opening 7, the worker pushes the vibrating tool 8 from the outside of the tilling cover 4 with a finger. be able to.

As a result, the adhering mud 6 adhering to the inside of the tilling cover 4 is deformed, peeled off, and falls downward.

[0009]

Embodiments of the present invention will be described in detail below with reference to the drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are as follows.
Unless otherwise specified, the scope of the present invention is not intended to be limited thereto and is merely an illustrative example.

In the illustrated example, an agricultural tractor (not shown) or the like is attached to a front portion or a rear portion thereof so as to be adjustable up and down, and cultivating claws 3, 3. ． The rotary tiller 5 excavates and cultivates the mud on the surface of the field by driving and rotating. Rotary cultivator 5 in the example
Although those shown in FIGS. 4 and 5 are side drive rotary, they can be folded into the center drive rotary and have the same effect.

On the left and right sides of the rotary tiller 5, there are provided a side transmission case 9 and a side support frame 10 for supporting the left and right sides of the tilling pipe 1 at their lower ends. The outer ends of the support pipes 11 and 12 are attached, and the main transmission case 13 is sandwiched and attached between the inner ends of the left and right support pipes 11 and 12. Reference numeral 14 is an input shaft. Input shaft 14
Protrudes forward from the main transmission case 13 at the upper center, and is used for the power take-off shaft (PTO) of an agricultural tractor (not shown).
The drive force of the shaft is taken in via the universal joint and driven and rotated.

The driving force input to the input shaft 14 is transmitted via a bevel gear (not shown) in the main transmission case 13 to a spur gear in the side transmission case 9 or a transmission tool (not shown) such as a chain or a sprocket. ) To reach tilling pipe 1. Reference numeral 15 is an interlocking shaft in the middle. As shown in FIG. 1, a plurality of claw holders 2, 2. ． ． Are integrally welded, and the plowing nail 3 is bolted to the nail holder 2. Attach it with a fastener such as a nut (not shown).

On both sides of the tilling pipe 1, flanges 16,
16 are integrally welded, and are detachably attached between a drive flange 17 attached to a transmission tool on the side transmission case 9 side and a support flange (not shown) on the side support frame side.
Cultivating claws 3, 3. ． ． The cultivating cover 4 is covered between the upper part of the rotation locus and between the left and right support pipes 11 and 12, and the outermost end is covered with the side covers 18 and 18.

Cultivating claws 3, 3. ． ． Behind the rotation trajectory of
A rear edge of a rear cover 19 having a front edge attached to the cultivating cover 4 is provided so as to be movable up and down.
It is covered with 0. The cultivating claw 3 in the illustrated example is a loose claw, and the tip horizontal blade portion 3b projects sideways from the vertical blade 3a by a curved surface. As shown in FIG. 2, since mud cannot be excavated in this curved surface portion, The attached mud 6 attached to the inner peripheral surface of the tilling cover 4 largely attaches in the vicinity of the extension of the vertical blade 3a.

In the illustrated example, a plurality of openings 7 are provided in a zigzag shape in the tilling cover 4 which is an extension of the vertical blade 3a, and a vibrating tool 8 is attached to the openings 7. The vibrating device 8 is made of an elastic material such as rubber, has a mud adhering surface 21 and a scraping guide surface 22 on the side of the tilling claw 3, and has an engaging portion 23 on the outer surface. The mud that contacts the vibrating tool 8 vibrates due to the rotational drive of the tilling claws 3 and thus is unlikely to adhere during normal work. If such mud is attached, the vibrating tool 8 is stopped from the outside after the rotation of the tilling claw 3 stops. The adhering mud 6 can be peeled off and dropped by applying pressure deformation with a finger or the like.

Since the vibrating tool 8 does not need to change the gap between the tilling claw 3 and the tilling cover 4 due to this shape, the opening 7 can be additionally processed and attached to the conventional tilling cover 4. Although the illustrated example is explained with the nata claw, when only the vertical blade 3a in which the claw is upright like a normal claw, the adhering mud 6 is adhered between the blade and the blade, the position of the opening 7 is the claw holder 2, The middle part of 2 is sufficient.

6 and 7 show another embodiment of the vibrating tool. This vibrating tool 8a is provided with a cross-shaped cut 24 in the central portion of the mud adhering surface 21a, and the mud adhering surface 21a when pressure is applied with a finger.
However, it is designed to be greatly deformed as shown by a virtual line. The vibrating device shown in FIG. 8 is still another embodiment.

This vibrating tool 8b is provided with a hollow chamber 25 at the back of the mud adhering surface 21b. The hollow chamber 25 and the outside of the finger pressing are opened by a small hole 26, and the small hole 26 is closed by a finger. When pressed by pressing, the mud adhering surface 21b is largely and partially expanded. In this case, if rain or water that has been left outdoors or at the time of car washing enters the hollow chamber 25 through the small holes 26, there is a further swelling effect.

In the illustrated example, the vibrating tool 8 has been described as a rubber plug-like member, but it is also effective as a flat rubber plate inscribed in the tilling cover 4. In short, it is important that the elastic material in the tilling cover 4 is easily deformed outward by the opening 7 to prevent the mud from adhering for a long time and that the adhered mud can be directly peeled from the outside.

As a result, the vibrating tool 8 for preventing the attachment of mud attached to the inner peripheral surface of the tilling cover 4 can be brought close to the tilling cover 4, so that the radial dimension of the tilling cover 4 can be reduced. Next, the area around the rear cover 19 will be described in detail. The rear cover 19 can swing up and down on the rear end side around a rotation fulcrum 27 provided on the rear edge of the tilling cover 4.

Reference numeral 28 is a support rod, and 29 is a spring, which is of a normal construction for adjusting the pressing force of the rear cover 19 by adjusting the position of the spring 29. A hollow pipe 30 which also functions as a reinforcement is welded to the rear end portion of the rear cover 19, and a mounting plate 32 into which a support shaft 31 at the base end is inserted is suspended and swingably suspended from the hollow pipe 30.

On the side of the rear cover 19 on the cultivating claw 3, a flat plate-like back plate 33 made of an elastic material for preventing the attachment of mud is provided with a plurality of locking members 34, 34. ． ． It is attached by. The lower end of the back plate 33 projects rearward longer than the rear cover 19, and the projecting part is attached to the mounting plate 32 via the lower end locks 35, 35. As a result, the mounting plate 32 moves up and down about the support shaft 31, so that the rear half of the back plate 33 moves toward and away from the rear cover 19.

By this movement, the mud adhered to the rear half of the back plate 33 is naturally easily peeled off when the rotary tiller 5 is moved up and down. Next, the lock 34 will be described. The lock 34 is simply a bolt. Although it may be a nut or the like, in the illustrated example, it is composed of a holding surface 36 portion that abuts the inner back plate 33 side and a locking brim surface 37 that locks in the opening of the rear cover 19 to prevent deformation and falling after mounting. To do this, the pressing lid 38 is pushed from the outside into the space recess 39 provided in the center.

When the mounting recess 40 is provided on the side of the back plate 33 so as to fill the holding surface 36, the adhesion of mud and the ease of cleaning are improved. 14 and 15 show the structure around one side cover 18 and the other side is symmetrical, so the description thereof will be omitted, but the prevention of mud adhesion in this part will be described. As shown in the figure, an inner cover plate 41 made of an elastic material such as rubber is attached to the inner periphery of the side cover 18.

The lower side of the inner cover plate 41 is the mounting metal 4
2 to the attachments 43, 43. ． , The upper end is bent toward the cultivating cover 4 side for a certain length, and the bent portion 44 is attached to the cultivating cover 4 by the mounting tools 43, 43. ． Attach via. Reference numeral 45 denotes an air chamber, which is an elastic cylinder, such as a rubber tube, which is longly arranged along the corners of the side cover 18 and the tillage cover 4 as shown in FIG. By adjusting the injection of air, the adhering mud is thrown away when excavating tillage.

[0026]

Since the present invention is constructed as described above,
It has the following technical effects. That is, the plowing nails 3,
3. ． ． Due to the drive rotation of the field, the mud excavated from the surface of the field will remain as the adhering mud 6 on the inner peripheral surface of the plowing cover 4 due to the amount of water, while being crushed by the plowing claws 3 in the plowing cover 4 while being crushed. However, since the opening 7 is provided in the vicinity of the portion where the adhered mud 6 adheres and the opening 7 is covered by the vibrating tool 8, the vibrating tool 8 is provided close to the tilling cover 4. Also, since the vibration of the vibrating tool 8 is not regulated outward, it is easy to vibrate, so that the attachment of mud is prevented for a long time.

Even if the mud adheres due to long-term use, if the 8 vibrating tools provided on the plowing cover 4 are pressed from the outside with hands, fingers, etc., the adhering mud 6 inside can be removed. Choreography 8
It is safe because the operator does not need to clean the tillage cover 4 from below because it easily peels off and falls due to the deformation.

[Brief description of drawings]

 The figure shows an embodiment of the invention.

FIG. 1 is a rear view of a main part, which is a partial cross section.

FIG. 2 is an enlarged explanatory view of the main part.

FIG. 3 is an enlarged rear view of the main part.

FIG. 4 is an overall front perspective view.

FIG. 5 is an overall side view.

FIG. 6 is an enlarged rear view of the second embodiment of the main part.

FIG. 7 is a bottom view of FIG.

FIG. 8 is an enlarged rear view of the third embodiment of the main part.

FIG. 9 is an overall rear perspective view.

FIG. 10 is a sectional side view of a rear cover portion.

11 is a partially enlarged view of FIG.

FIG. 12 is another partially enlarged view of FIG.

FIG. 13 is a second embodiment of FIG.

FIG. 14 is a partial cross-sectional rear view in which another main portion is folded.

FIG. 15 is a side view of FIG.

[Explanation of symbols]

 1 Cultivating pipe 2 Claw holder 3 Cultivating claw 4 Cultivating cover 5 Rotary cultivator 6 Adhesive mud 7 Opening 8 Vibrating tool

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Gen Odagiri, No. 1 Hachikura, Tobe, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. Claw holders provided on the outer periphery of a tilling pipe 1, 2. ． Cultivating claws 3, 3. ． ． , And this plowing claw 3,3. ． In the rotary tiller 5 for covering the outside of the plough cover 4 with the plowing cover 4 and scraping off the mud attached to the inner circumference of the plowing cover 4 by the rotation of the plowing claw 3, the plowing cover 4 in the vicinity of the attached mud 6 left on the plowing claw 3 A mud adhesion preventing device for a cultivating cover, characterized in that an opening 7 is provided in a portion, and the opening 7 is covered with a vibrating tool 8 made of an elastic material.