JP4274169B2 - Mud removal equipment and agricultural machinery - Google Patents

Description

  The present invention relates to a mud dropping apparatus and an agricultural machine.

  In rice transplanters, wheels with an elastic ring formed by covering an annular rim with an elastic material such as a rubber material are used to ensure stable propulsion in soft ground such as paddy fields. . Lugs are arranged at regular intervals in the circumferential direction of the wheel on the outer peripheral surface and side surfaces of the elastic ring body. Such a wheel is configured to generate traction and buoyancy required for forward or reverse travel by providing lugs.

  Examples of the lug include a blade lug that protrudes largely to the side of the wheel, a triangular lug in which the amount of protrusion to the side is suppressed compared to the blade lug, and a trapezoidal lug arranged on the wheel equatorial plane.

  When the rice transplanter runs on the soft ground, mud adheres to the sides of the wheels. In particular, the blade lugs tend to adhere to mud. Since the wheel is rotating, the mud is lifted upward while adhering to the wheel. The mud lifted upward may fall due to its own weight. The fallen mud causes mud fogging, folding and falling on the seedlings that have just been planted. When a rice transplanter travels on a paved road with mud on the wheels, the road may be soiled. If the mud dries while attached to the wheels, it may be difficult to remove the mud during car washing. There are similar problems in agricultural machinery other than rice transplanters.

  Agricultural wheels that take into account the balance between the mud repellency and traction of the left and right blade lugs are disclosed in Japanese Patent Application Laid-Open No. 2002-347404. In this wheel, the protruding amounts of the left and right blade lugs in the axle direction are the same or substantially the same. And the lug with the large amount of elastic deformation or the amount of elastic deformation and the small lug are arranged by turns to the left and right by turns in the circumferential direction. This elastic deformation amount and elastic deflection amount are controlled by the circumferential thickness of the lug. In this agricultural wheel, the mud is shaken off by the difference in the amount of elastic deformation or the amount of elastic deflection of the left and right blade lugs.

Japanese Laid-Open Patent Publication No. 2001-80473 discloses a mud removing device that scrapes off mud adhering to a wheel by utilizing the rotation of the wheel. This device includes a large frame that can surround the front, rear, left and right of the wheel. The front part and the rear part of the frame body scrape off the mud adhering to the tread surface of the wheel. A blade made of an elastic material is fixed to the inside of the side surface of the frame, and the blade scrapes off mud adhering to the side surface of the wheel.
JP 2002-347404 A JP 2001-80473 A

  In the agricultural wheel described in Japanese Patent Application Laid-Open No. 2002-347404, the mud is shaken off by the difference in the amount of elastic deformation or the amount of elastic deflection of the left and right blade lugs. Such a lug configuration has a problem that the mud removal effect is not reliable. In the case of a triangular lug in which the protrusion to the side of the wheel is suppressed more than the blade lug, and a wheel having a trapezoidal lug with almost no protrusion, there is no difference in the amount of elastic deformation or elastic deformation of the left and right lugs. Therefore, mud cannot be removed by using this difference. Therefore, with this wheel, the problem caused by mud adhesion as described above cannot be solved.

  The frame provided in the mud dropping device of JP 2001-80473 must be larger than the outer diameter of the wheel. For this reason, the configuration of this apparatus becomes extremely large. In the rice transplanter to which this device is attached, the vehicle mass increases, so the running performance in soft ground such as paddy fields is reduced.

  In the apparatus described in Japanese Patent Laid-Open No. 2001-80473, the scraped mud adheres and accumulates on the front and rear portions of the frame. Due to this adhesion accumulation, mud lump is formed. Since the frame is configured to correspond to the outer diameter of the wheel, the frame is attached to a height equivalent to the wheel axle. For this reason, the lump of mud is formed at a height position equivalent to the axle. This mud mass may fall from this height position. Since the mud falling in this way has momentum, the planted seedlings are encouraged to break and fall. In this device, the frame surrounding the front, rear, left and right of the wheel is configured to scrape off the mud, so that the mud adhering to the inner side in the axial direction from the side surface of the wheel is not scraped off.

  An object of the present invention is to provide a mud removing device and an agricultural machine that can scrape mud adhering to a wheel without impairing the running performance of a vehicle on soft ground.

  The mud dropping apparatus according to the present invention includes a mud draining member having a mud body that scrapes off mud adhering to the wheel, and a support member that supports the mud draining member. The said sludge discharging member is provided with the elastic body which repeats a bending and shape restoration with rotation of a wheel.

  When the elastic body repeats bending and shape restoration, the mud draining member does not hinder the rotation of the wheel while contacting the wheel. Since the mud drain member is repeatedly deformed, durability against the deformation is extremely important. With the configuration using the bending of the elastic body, durability against repeated deformation can be improved. The configuration using the bending of the elastic body helps to simplify the structure and can contribute to cost reduction. The configuration using the bending of the elastic body can facilitate the replacement work of the elastic body and the maintenance of the apparatus.

  Preferably, in the mud dropping apparatus, the elastic body is a coil spring. By adopting a configuration in which the coil spring is bent, durability against repeated deformation can be further improved.

  Preferably, the mud dropping device includes a positioning adjustment mechanism capable of adjusting the position of the mud body.

  Preferably, in the mud dropping apparatus, the elastic body is the mud body.

  Preferably, in the mud dropping apparatus, the elastic body extends in the axial direction from the support member side toward the equatorial plane of the wheel.

  Preferably, in the mud dropping apparatus, the drainage member includes the elastic body and the mud body attached to an end of the elastic body.

  The agricultural machine according to the present invention includes a wheel and a mud removing device, and the mud removing device has a mud member having a mud body that scrapes off mud adhering to the wheel, and supports the mud member. And a supporting member. The said sludge discharging member is provided with the elastic body which repeats a bending and shape restoration with rotation of a wheel.

  Preferably, in this agricultural machine, the elastic body extends in the axial direction from the support member side toward the equatorial plane of the wheel, and the wheel includes a spoke. The spoke is configured to repeat the bending and shape restoration of the elastic body as the wheel rotates.

  A mud dropping apparatus for agricultural machinery wheels according to the present invention includes a supporting member that extends from the agricultural machinery body toward the outer periphery of the rotating area excluding the contact area of the wheels with side protruding lugs equipped in the agricultural machinery. And a drainage member projecting from the support member toward the rotation region of the side protruding lug during wheel rotation. The waste mud member is in contact with the rotation leading surface of the side protruding lug to scrape off the adhering mud, and as the side protruding lug rotates, the mud body contacts the side protruding lug. An elastic body that maintains the contact state and generates elasticity in a direction to return to the original position after passing through the rotation of the side protruding lug.

If such a mud dropping device is attached to an agricultural machine and set so that the drainage member abuts against the side protruding lug of the wheel rotating by traveling, the mud adhered to the side protruding lug can be reliably It can be scraped off.

Further, since the mud body is supported through an elastic body, the mud body returns to the original position (substantially horizontal state) after coming into contact with the side protruding lug, and comes into contact with the next side protruding lug. Such a vertical swinging motion is repeated. For this reason, even with this mud dropping device itself, even if mud adheres, a phenomenon that is immediately wiped off by vibration is obtained and does not accumulate. That is, it is possible to prevent the attached mud from becoming a large lump.

  Proximity position adjustment means that enables position adjustment of the sludge member along the radial direction of the wheel on the support member, height adjustment that enables position adjustment of the sludge member along the height direction from the ground contact ground Means, right / left position adjusting means for adjusting the position of the sludge member along the axial direction of the wheel, and adjustment of the contact angle at which the sludge body of the sludge member abuts against the side protruding lug It is preferable to provide an angle adjusting means. By providing these proximity position adjusting means, height adjusting means, left and right position adjusting means, angle adjusting means, etc., it is possible to give versatility to wheels having different types and sizes, or various agricultural machines. Become.

  It is preferable to form the tip of the mud body of the waste mud member in a circular cross section in a direction in which the mud body slides in contact with the rotation leading surface of the side protruding lug. By doing in this way, the contact | abutting and sliding contact with respect to a side protrusion lug can be made smooth, and generation | occurrence | production of the abrasion etc. with respect to a side protrusion lug can be prevented. The mud body of the sludge discharging member can be formed such that the tip end portion is inclined at an angle parallel to the inclination angle at which the rotation leading surface of the side protruding lug protrudes from the wheel side surface. By doing in this way, the scraping action of a mud and the abrasion prevention effect with respect to a side protrusion lug can be improved further.

  The mud body of the sludge discharging member is abutted at an angle close to a right angle with respect to the rotation leading surface of the side protruding lug, and is prevented from being caught with the side protruding lug when the wheel is reversed. What is necessary is just to form a convex curve. By adopting these shapes, the action of scraping off mud can be enhanced. Further, when the wheel is reversed, it is useful to prevent the side protruding lug and the mud dropping device from being damaged by preventing the side protruding lug from being caught. It is preferable that the mud body of the mud discharge member is formed in a shape in which the side edge portion facing the wheel side surface is in contact with or close to the wheel side surface.

By doing in this way, not only mud adhering to a side protrusion lug but mud adhering to the side of a wheel can be scraped off reliably. It is preferable that the mud discharge member is formed such that the mud body and the elastic body are formed as separate members and can be connected to and separated from each other. By doing so, it is possible to replace only the mud body or only the elastic body, and the running cost can be reduced. Further, there is an advantage that an elastic body can be selected while appropriately using another type depending on the strength of the elastic force.

  The mud draining member may be provided with a connecting plate between the mud body and the elastic body, and with a base rod provided at the base of the elastic body. In this case, the mud body and the connecting plate, the connecting plate and the elastic body, and the elastic body and the base rod may be fixed by the fastening means. Further, it is preferable that the left and right positions of the mud body can be adjusted based on the connecting plate, and the gap between the mud body and the wheel can be adjusted according to the width of the wheel.

  A mud dropping device for agricultural machinery according to the present invention includes a holding part attached to the fuselage, a stay attached to the holding part and extending in the length direction of the fuselage, and a wheel attached to the stay. And a mud body extending in the longitudinal direction of the airframe along the side surface. The holding unit includes a cylinder, a buffer body accommodated in the cylinder, and a fixture. The stay is provided with an elastic body which is bent when a force is applied and which is restored when the force is removed. The elastic body is fixed to the cylindrical body by being partly accommodated in the cylindrical body and tightened with a fixing tool via a buffer body.

  An agricultural machine according to the present invention includes an airframe, wheels, and a mud dropping device. This wheel includes a front wheel having only a block-like lug on its outer peripheral surface and a rear wheel having a blade lug on its outer peripheral surface. This mud dropping device includes a holding part attached to the fuselage, a stay attached to the holding part and extending in the longitudinal direction of the fuselage, and a length of the fuselage along the side of the wheel attached to the stay. It is provided with a mud body extending in the vertical direction. The stay is provided with an elastic body which is bent when a force is applied and which is restored when the force is removed.

  Preferably, in this agricultural machine, the holding unit includes a cylinder, a buffer body accommodated in the cylinder, and a fixture. A part of the elastic body is housed in the tubular body and is fixed to the tubular body by being tightened with a fixture via a buffer body.

  An agricultural machine according to the present invention includes an airframe, wheels, and a mud dropping device. This wheel is provided with a front wheel and a rear wheel having only block-like lugs on the outer peripheral surface thereof. This mud dropping device includes a holding part attached to the fuselage, a stay attached to the holding part and extending in the longitudinal direction of the fuselage, and a length of the fuselage along the side of the wheel attached to the stay. It is provided with a mud body extending in the vertical direction. The stay is provided with an elastic body which is bent when a force is applied and which is restored when the force is removed.

  Preferably, in this agricultural machine, the holding unit includes a cylinder, a buffer body accommodated in the cylinder, and a fixture. A part of the elastic body is housed in the tubular body and is fixed to the tubular body by being tightened with a fixture via a buffer body.

  The mud dropping device according to the present invention includes a support member and a mud discharge member. The support member includes a first arm extending along one side surface of the wheel, a second arm extending from the first arm in the axial direction of the wheel, and a second arm extending from the second arm along the other side surface of the wheel. With three arms. The mud draining member includes a first slurry extending in the axial direction from the first arm side toward the equator plane of the wheel, and a second slurry extending in the axial direction from the third arm side toward the equator plane. And.

  Preferably, in this mud dropping device, the first and second mud bodies are bent when a force is applied along the rotational direction of the wheel, and the shape is restored when the force is removed. ing.

  Preferably, in this mud dropping device, the first and second mud bodies are made of coil springs.

  Preferably, the mud dropping device includes a positioning adjustment mechanism capable of adjusting the positions of the first and second mud bodies.

  An agricultural machine according to the present invention includes a wheel and a mud removing device. This mud dropping device includes a supporting member and a mud discharging member. The support member includes a first arm extending along one side surface of the wheel, a second arm extending from the first arm in the axial direction of the wheel, and a second arm extending from the second arm along the other side surface. With three arms. The drainage member includes a first slurry extending in the axial direction from the first arm side toward the equator plane of the wheel, and a second slurry extending in the axial direction from the third arm side toward the equator plane. With body.

  Preferably, in this agricultural machine, the wheel includes a spoke. The spoke is configured to pass between the first and second mud bodies by the rotation of the wheels.

  The mud dropping device for agricultural machinery according to the present invention includes a holding part fixed to the machine body, and a mud body extending from the holding part in the longitudinal direction of the machine body along the side surface of the wheel. The mud body is directly fixed to the holding portion.

  Preferably, in the mud dropping apparatus, the mud body includes an elastic body extending in the axial direction on the tip side.

  The agricultural machine which concerns on this invention is equipped with the body, the wheel, and the mud dropping apparatus attached to this wheel. This wheel has a lug on its outer peripheral surface. This lug is composed only of block lugs. The mud dropping device includes a holding part fixed to the machine body, and a mud body extending from the holding part in the longitudinal direction of the machine body along the side surface of the wheel. The mud body is directly fixed to the holding portion.

  Preferably, in this agricultural machine, the mud body is provided with an elastic body extending in the axial direction on the tip side.

  According to the present invention, it is possible to surely scrape the mud adhered to the wheels without impairing the traveling performance of the vehicle.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show a first embodiment of a mud dropping apparatus 1 according to the present invention. As shown in FIG. 8, the mud dropping apparatus 1 is provided with a wheel 102 as a rear wheel (propulsion wheel) equipped on an agricultural machine 2 such as a rice transplanter as an object of action. As is clear from FIG. 1, the wheel 102 in the illustrated example protrudes radially around the axle mounting boss 110 while being reinforced by the central reinforcing plate 106, and each tip of each of the spokes 105. Thus, the elastic ring body 111 in which the metal ring-shaped core material is embedded in an elastic material such as rubber (the elastic material is vulcanized and attached around the core material) is supported.

Then, laterally protruding lugs 100 are provided on the outer peripheral portion of the elastic ring body 111 at predetermined intervals in the circumferential direction. The side protruding lug 100 protrudes toward the left and right sides (outside) in a state of being inclined with respect to a virtual line extending in the radial direction from the axle center of the boss 110.
This is a so-called “blade lug”. The side protruding lug 100 is provided on both side surfaces of the elastic ring body 111 from the inner peripheral end to the outer peripheral end, and the inclination direction is such that the radially inner end of the side protruding lug 100 has a diameter. The direction that is the front side of the rotational direction (at the time of forward movement) from the outer end of the direction, and therefore, the surface that sinks toward the surface with respect to mud or the like when the wheel 102 rotates becomes the rotation leading surface 112. .

  In addition, a plurality (three in the illustrated example) of trapezoidal lugs 113 are arranged in the circumferential direction between the side protruding lugs 100 at the center of the wheel width which is the outer peripheral edge of the elastic ring body 111. The mud dropping apparatus 1 according to the present invention includes a support member 5 and a mud discharge member 6. The support member 5 is a part for attaching the mud dropping device 1 to the body of the agricultural machine 2. What is necessary is just to employ | adopt suitably the attachment structure with respect to the agricultural machine 2, the detailed structure of an attachment part, etc. according to the vehicle shape of the agricultural machine 2, the positioning of the wheel 102, etc. FIG. In the illustrated example, as a form that extends rearward from the lower part of the agricultural machine 2 in a substantially horizontal state, the sludge member 6 is cantilevered at a position on the rear side of the wheel 102 in the outer periphery of the rotation region of the wheel 102. It is. The mud discharge member 6 scrapes off the mud adhering to the wheel 102.

The sludge discharging member 6 is provided in a protruding state from the support member 5 toward the rotation region of the side protruding lug 100 that rotates together with the wheel 102 when the wheel 102 rotates.
In this embodiment, since the side protrusion lug 100 is provided in the right and left both sides of the wheel 102, this drainage member 6 also has a pair of left and right as shown in FIG. The mud draining member 6 has a squeegee portion 10 as a mud body and an elastic stay portion 11 as an elastic body. When the squeegee portion 10 and the elastic stay portion 11 are formed of a material having both strength and elasticity among metals, resins, rubbers, etc., the entire drainage member 6 (the squeegee portion 10 and the elastic stay portion 11). Not only that, but also a base rod 13 and a connecting plate 15 (to be described later) may be integrally formed (including an integral connection such as welding), but in this embodiment, they are formed by separate members and connected by bolts 12. Shows what has been done.

  The left and right waste mud members 6 are connected so as to share the base rod 13, and the two elastic stay portions 11 are spaced from the base rod 13 by a predetermined interval corresponding to the width of the wheel 102. Are connected by fastening means 14 such as bolts, and a connecting plate 15 is installed between the ends of both elastic stay portions 11, and the left and right squeegee portions 10 are connected by bolts 12 via the connecting plate 15. It is. Here, the same number of squeegee portions 10 and elastic stay portions 11 are provided in each coaxial arrangement, but they are not coaxial arrangements (the squeegee portion 10 corresponds to the wheel width, but the elastic stay portion 11 It may be wider or narrower on the opposite side), and the left and right squeegee portions 10 may share one elastic stay portion 11.

  In the connecting portion between the connecting plate 15 and the squeegee portion 10, a long hole 16 that is long in the left-right direction is provided in either one so that the position adjustment of the left and right squeegee portions 10 relative to the connecting plate 15 can be performed. The squeegee unit 10 is formed in an L-shaped hook shape using a metal plate, a resin plate, a rubber plate or the like as a material. The end portion on the long side of the L-shaped hook shape is a rear end portion 20 used for connection to the elastic stay portion 11, and the end portion on the short side is the side protruding lug 100. It is the front-end | tip part 21 which contact | abuts.

  The mud draining member 6 is provided on the rear side of the wheel 102 so that the rear end portion 20 (connection portion with the elastic stay portion 11) faces rearward and the front end portion 21 faces forward and downward. Then, with respect to the rotation leading surface 112 of the side protruding lug 100 that is lifted up by scooping up mud from the ground due to the rotation of the wheel 102 when moving forward, the distal end portion 21 of the squeegee portion 10 is directed radially inward. The position is adjusted so as to abut at an angle close to a right angle. As shown in FIG. 3, the tip portion 21 of the squeegee portion 10 is formed in a circular cross section so that the squeegee portion 10 does not scratch the side protruding lug 100 during the abutment.

  Further, the squeegee portion 10 is formed in a shape in which a side edge portion facing the side surface of the wheel 102 is in contact with or close to the side surface of the wheel 102. In the example shown in the figure, it is a straight line (see FIG. 2 etc.), but if the side surface of the wheel 102 has a tight curve in the bulging direction (a curve with a small radius of curvature), a concave curve will follow the curve. It may be formed. Further, as shown in FIG. 5, the squeegee unit 10 is arranged so that the rotation leading surface 112 of the side protruding lug 100 has an angle parallel to the inclination angle θ protruding from the side surface of the wheel 102. The tip portion 21 is formed to be inclined.

  For this reason, as shown in FIGS. 6 and 7, the squeegee unit 10 abuts against the rotation leading surface 112 of the side protruding lug 100 at the radially inner end thereof, and then rotates the wheel 102. Along with this, the abutting state is maintained toward the radially outer end of the rotation leading surface 112 so as to come into sliding contact, and as a result, the mud adhering to the rotation leading surface 112 is surely scraped off. At the same time, the mud adhering to the side surface of the wheel 102 is surely written down. The elastic stay portion 11 is, for example, a coil spring or a leaf spring (which may be made of metal, resin, or rubber). As described above, the squeegee portion 10 is connected to the rear end portion 20 by the fastening means 12 such as a bolt.

  As shown in FIG. 4, the squeegee portion 10 can swing at least in the vertical direction by the elastic stay portion 11, and when the external force load disappears, the squeegee portion 10 returns to the original substantially horizontal state and is held in the substantially horizontal state. It becomes like this. For this reason, when the squeegee portion 10 is in contact with the sliding front surface 112 of the side protruding lug 100 and is in sliding contact as described above, the contact state of the squeegee portion 10 to the side protruding lug 100 is appropriately adjusted. It can be maintained with power. Further, after the side protruding lug 100 rotates and passes to a position where the squeegee portion 10 does not reach, the squeegee portion 10 is returned to the original position (substantially horizontal state). The elastic stay part 11 as an elastic body repeats bending and shape restoration as the wheel 102 rotates.

  When the wheel 102 is reversed, the squeegee portion 10 has an L-shaped hook shape and the squeegee portion 10 is supported by the elastic stay portion 11, so that the L-shaped hook-shaped back portion rotates in reverse. Thus, the side discharge lug 100 is placed in a state where it can be stroked downward without difficulty, and as a result, no inconvenient catching on the side protrusion lug 100 occurs. As described above, since the squeegee portion 10 and the elastic stay portion 11 are separate members and are connected by the fastening means 12, only the squeegee portion 10 or only the elastic stay portion 11 can be replaced.

  As shown in FIGS. 1 and 2, in the support member 5 for supporting the drainage member 6, the proximity position adjusting means 30, the height adjusting means 31, the left and right position adjusting means 32, the angle adjusting means 33, etc. Is provided. The proximity position adjusting means 30, the height adjusting means 31, the left / right position adjusting means 32, and the angle adjusting means 33 are positioning adjusting mechanisms. The proximity position adjusting means 30 is for enabling the position adjustment of the mud discharging member 6 along the radial direction of the wheel 102 (the horizontal direction in the figure). Specifically, it has a main body shaft 35 extending substantially horizontally from the agricultural machine 2 to the rear, and a slide member 36 slidably held with respect to the main body shaft 35. The mud draining member 6 is provided via the slide member 36. The slide member 36 is provided with appropriate fastening means (not shown) such as a set screw for positioning (fixing) with respect to the main body shaft 35.

  The height adjusting means 31 is for enabling the position adjustment of the mud draining member 6 along the height direction from the ground contact ground. Specifically, it has a vertical rod 37 protruding downward from the slide member 36 of the proximity position adjusting means 30 and an elevating member 38 slidably held with respect to the vertical rod 37. The mud draining member 6 is provided through the elevating member 38. The elevating member 38 is provided with appropriate fastening means (not shown) such as a set screw for positioning (fixing) with respect to the vertical rod 37. The left / right position adjusting means 32 is for enabling the position adjustment of the mud discharging member 6 along the axial direction of the wheel 102. In the case of the present embodiment, as described above, the horizontal position adjustment of the squeegee portion 10 along the long hole 16 is performed based on the connecting plate 15 provided between the squeegee portion 10 and the elastic stay portion 11 in the mud discharging member 6. Since this is possible, this structure is not necessarily a means for adjusting the left-right position. However, this structure mainly adjusts the gaps between the individual squeegee portions 10 and the wheels 102.

  Therefore, the left / right position adjusting means 32 is intended to more positively adjust the position of the sludge discharging member 6 as a whole including the elastic stay portion 11 and the like. Specifically, a bracket 41 provided in the elevating member 38 of the height adjusting means 31 and formed with a guide hole 40 penetrating left and right, and a left and right penetrating through the guide hole 40 of the bracket 41 are slidably held. Arm 42. This arm 42 is bent in an L shape in plan view, and the base rod 13 of the drainage member 6 is cantilevered in a laterally projecting manner at the bent portion.

  The bracket 41 is provided with appropriate fastening means (not shown) such as a set screw in order to position (fix) the base side (portion extending in the left-right direction) of the arm 42. The angle adjusting means 33 is for enabling adjustment of the contact angle at which the squeegee portion of the mud discharging member 6 contacts the side protruding lug 100. In the present embodiment, the left / right position adjusting means 32 also serves as the angle adjusting means 33. That is, the angle of the base rod 13 can be adjusted by adjusting the rotation angle of the arm 42 inserted into the guide hole 40 of the bracket 41, which corresponds to the angle adjustment of the mud draining member 6. .

  As is clear from the above detailed description, the mud dropping device 1 according to the present invention is attached to the agricultural machine 2, the proximity position adjusting means 30, the height adjusting means 31, the left and right position adjusting means 32, and the angle adjusting means of the support member 5. If the squeegee portion 10 of the mud draining member 6 is set in a predetermined state with respect to the wheels 102 by appropriately operating the 33 or the like as necessary, the side protruding lugs of the wheels 102 rotating by the traveling of the agricultural machine 2 The mud adhering to 100 is surely scraped off as the wheel 102 rotates, by slidingly contacting the rotation leading surface 112 of the side protruding lug 100 from its radially inner end to its radially outer end. It is what

  At the same time, the mud adhering to the side surface of the wheel 102 is surely scraped off by the side edge of the squeegee portion 10 in the mud discharging member 6. Further, since the squeegee portion 10 is supported through the elastic stay portion 11, the squeegee portion 10 returns to the original position (substantially horizontal state) after contacting the side protruding lug 100, and the next side protruding lug. The swinging motion in the up and down direction such as abutting 100 is repeated. For this reason, even with this mud dropping device 1 itself, even if mud adheres, a phenomenon of being wiped off by vibration immediately is obtained and does not accumulate. That is, it is possible to prevent the attached mud from becoming a large lump.

  When two squeegee portions 10 are provided, it is preferable to provide two elastic stay portions 11 corresponding to each squeegee portion 10, so that a large space is formed between the two elastic stay portions 11. However, mud is immediately dropped from this space as the squeegee unit 10 repeats the vertical swinging motion. Therefore, it is possible to surely prevent mud from adhering and remaining on the base rod 13 and the connecting plate 15 as well as the squeegee portion 10 and the elastic stay portion 11 and the enlargement thereof (with enlargement). Naturally, the space is not filled).

  From these things, the problem that the already planted seedling 103 is damaged by the direct hit of the falling mud is surely solved. In particular, by setting the mounting height of the squeegee 10 to a relatively low position (from near the center of the wheel 102 to the bottom), mud is removed every time the wheel comes out from the surface of the ground (such as a field). Therefore, the mud soil scraped off from the side surfaces of the laterally protruding lugs 100 and the wheels 102 or the mud soil removed from the mud dropping device 1 itself has a small drop momentum. Rather than saying "falling", it is an image of being put down quietly. Therefore, protection of the seedling 103 is ensured.

  Further, the pavement road surface is not soiled by the falling mud, and there is no difficulty in removing the adhering mud with respect to the wheel 102 during the car wash. As described above, the mud dropping device 1 itself does not accumulate adhering mud and does not become a large lump, so that the mud removing device 1 does not have any difficulty in removing the adhering mud. By the way, this invention is not limited to the said embodiment, It can change suitably according to embodiment. For example, as shown in the modification of FIG. 9, the squeegee portion 10 of the mud discharging member 6 can be formed in a convex curve as a shape viewed from the side. Even in the squeegee portion 10 having such a shape, the squeegee portion 10 is abutted at a relatively close angle to the rotation leading surface 112 of the side protruding lug 100. It can prevent catching.

  The mud dropping apparatus 1 according to the present invention can also be applied to agricultural machines other than rice transplanters. The wheel 102 may be a front wheel or a rear wheel, or all wheels may be attached to a target. The mud discharging member 6 can be attached to only one side surface of the wheel 102. The proximity position adjusting means 30, the height adjusting means 31, the left / right position adjusting means 32, the angle adjusting means 33, and the like of the support member 5 are not limited in any way, such as the presence / absence thereof, the adopted structure, or the like.

  According to the mud dropping apparatus 1 for agricultural machinery wheels of the above-described embodiment, mud attached to the side protruding lugs of the wheels, the wheel side surfaces, and the like can be reliably removed. In particular, by setting the mounting position of this mud drop device (removal position of the attached mud) to a low position, mud is removed every time the wheel comes out from the surface of the ground (field etc.) and the attached mud is enlarged. Therefore, the problem that seedlings that have already been planted are damaged by direct hitting of mud is surely solved. Also, the mud removal part (squeegee part) swings up and down by repeated contact with and separation from the side protruding lugs, so the mud adhering to the mud dropping device itself is immediately wiped off by vibration. , Do not deposit. Therefore, it is possible to prevent the attached mud from becoming a large lump. For these reasons, the pavement surface is not soiled with falling mud, nor is it difficult to remove the mud adhering to the wheels or the mud dropping device itself during washing.

  FIG. 11 is a front view showing an agricultural machine 2x according to the second embodiment of the present invention. This agricultural machine 2x includes an airframe 4x, wheels 6x, and a mud dropping device 8x. The wheel 6x includes a front wheel 10x and a rear wheel 12x. This agricultural machine 2x is a four-wheel type rice transplanter. This machine 4x is equipped with equipment for functioning as a rice transplanter. In the agricultural machine 2x, the mud dropping device 8x is attached to the front wheel 10x and the rear wheel 12x. In FIG. 11, the left-right direction represents the length direction of the airframe 4x. The left side of the paper is the front side of the agricultural machine 2x. And the perpendicular direction of this paper surface represents the axial direction of the wheel 6x.

  The front wheel 10x includes only a block-shaped lug 14x on the outer peripheral surface thereof. In this agricultural machine 2x, this block-shaped lug 14x is composed of a trapezoidal lug 16x and a triangular lug 18x. The trapezoidal lug 16x is disposed on the equator plane of the front wheel 10x. The triangular lugs 18x extending outward in the axial direction of the trapezoidal lugs 16x are alternately arranged on both sides of the trapezoidal lugs 16x in the rotation direction. The rear wheel 12x includes a trapezoidal lug 16x and a blade lug 20x on the outer peripheral surface thereof. In the rear wheel 12x, the trapezoidal lugs 16x and the blade lugs 20x are alternately arranged in the rotation direction. This blade lug 20x protrudes greatly to the side. The lateral protrusion of the triangular lug 18x is smaller than that of the blade lug 20x. The trapezoidal lug 16x does not have such a lateral protrusion. Therefore, in the front wheel 10x including the trapezoidal lug 16x and the triangular lug 18x, the lateral protrusion is small. In the rear wheel 12x including the blade lugs 20x, the lateral protrusion is large. The wheel 6x having such a lug is formed by baking a rubber material on an annular rim.

  FIG. 12 is a plan view showing a part of the mud dropping device 8x provided in the agricultural machine 2x of FIG. In FIG. 12, the vertical direction represents the axial direction of the wheel 6x. The left-right direction represents the length direction of the airframe 4x. The left side of the paper is the front side of the agricultural machine 2x. The mud dropping device 8x includes a support member 22x and a mud discharge member 24x. The mud discharging member 24x scrapes off the mud adhering to the wheel 6x. The support member 22x includes an arm portion 26x attached to the machine body 4x, and a holding portion 28x disposed along the ground contact surface of the wheel 6x from the arm portion 26x. The drainage member 24x is attached to the holding portion 28x and extends in the length direction of the machine body 4x. The squeegee member is attached to the stay 30x and extends in the length direction of the machine body 4x. 32x.

  The arm portion 26x includes a first rod 34x, a second rod 36x, a third rod 38x, a first ring 40x, a second ring 42x, and a third ring 44x. The first rod 34x extends from the body 4x in the length direction toward the rear side. The second rod 36x extends in the vertical direction of the body 4x. A first ring 40x is fixed to the upper end of the second rod 36x by welding. The third rod 38x is bent. Accordingly, the third rod 38x is configured to extend in the axial direction and the length direction. A portion extending in the axial direction of the third rod 38x passes through the third ring 44x. The portion extending in the length direction of the machine body 4x is fixed to the holding portion 28x by welding on the rear side. In the agricultural machine 2x, the third ring 44x and the second ring 42x are fixed by welding.

  The first ring 40x can be fixed at a predetermined position by sliding the first rod 34x. The second ring 42x slides on the second rod 36x and can be fixed at a predetermined position. The third ring 44x can slide at a portion extending in the axial direction of the third rod 38x and can be fixed at a predetermined position. In the agricultural machine 2x, the first rod 34x, the second rod 36x, and the third rod 38x are all made of a round bar. Each rod may be a square bar having a rectangular cross section.

  The holding portion 28x includes a substrate 46x, a bolt 48x, and a nut 50x. The substrate 46x is configured to be long in the axial direction. The holding portion 28x may include another fastening means other than the bolt 48x and the nut 50x. Although not shown, bolt holes into which the bolts 48x can be inserted are formed on both sides of the substrate 46x.

  The stay 30x is provided with a coil spring 52x as an elastic body that bends when a force is applied and recovers when the force is removed. At both ends of the coil spring 52x, flanges 54xa and 54xb are formed. The flange 54xa located on the rear side is applied to the lower side of the substrate 46x, and the nut 50x is disposed thereunder. The bolt 48x is inserted through the bolt hole and the inside of the flange 54xa from the upper side of the board 46x. The bolt 48x is screwed into the nut 50x. The coil spring 52x is fixed to the substrate 46x by being tightened with the bolt 48x and the nut 50x.

  The material of the coil spring 52x is preferably a metal material from the viewpoint of strength. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance.

  The squeegee member 32x includes a mud 56x, a connection plate 58x, a bolt 60x, and a nut 62x. The mud 56x is configured to scrape off the mud 64x adhering to the wheel 6x. In the agricultural machine 2x, the mud 56x includes a handle 66x extending in the length direction and a claw 68x extending downward from the end of the handle 66x toward the road surface. In this agricultural machine 2x, a 2x mud 56x extends in the length direction of the machine 4x along the side surface of the wheel 6x. The tip of the mud 56x is rounded. An adjustment hole 70x is formed on the stay 30x side of the mud 56x. The adjustment hole 70x has a long shape in the axial direction. Note that the shape of the mud 56x is appropriately determined in consideration of the shape of the lug, the size of the wheel 6x, and the like.

  Examples of the material of the mud 56x include a metal material and a synthetic polymer material. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance. Examples of the synthetic polymer material include plastic materials and rubber materials. From the viewpoint of strength and versatility, a plastic material is preferable. Examples of the plastic material include polyvinyl chloride, polystyrene, polyethylene, polypropylene, polyacetal, and nylon.

  The connection plate 58x is configured to be long in the axial direction. Although not shown, bolt holes into which the bolts 60x are inserted are formed on both sides of the connection plate 58x. The bolt 60x passes through the adjustment hole 70x of the mud 56x, the bolt hole of the connection plate 58x, and the inside of the flange 54xb located on the front side of the coil spring 52x, and is screwed into the nut 62x disposed below the flange 54xb. It is. The squeegee member 32x is fixed to the stay 30 by tightening the coil spring 52x, the connection plate 58x, and the mud 56x with the bolt 60x and the nut 62x. Thus, the mud 56x is attached to the end of the coil spring 52x as an elastic body. As described above, since the adjustment hole 70x of the mud 56x has a long shape in the axial direction, the position of the mud 56x in the axial direction can be adjusted. The squeegee member 32x may be fixed to the stay 30x by another fastening means other than the bolt 60x and the nut 62x. The squeegee member 32x and the stay 30x may be formed as one member by using a rubber material that is an elastic material.

  In this agricultural machine 2x, since the first ring 40x can slide in the length direction of the machine body 4x, the position of the mud body 56x in the length direction can be adjusted. Since the second ring 42x can slide in the vertical direction, the vertical position of the mud 56x can be adjusted. Since the third rod 38x can slide in the axial direction, the axial position of the mud 56x can be adjusted. And since this 3rd rod 38x can rotate to the same direction as the wheel 6x, the angle with respect to the length direction of the mud 56x can also be adjusted. The agricultural machine 2x is provided with a positioning adjustment mechanism using such a slide lock. Therefore, in this agricultural machine 2x, the position of the mud 56x can be adjusted according to the state of the field, the diameter of the wheel 6x, the width of the wheel 6x, the adhesion state of the mud 64x, and the like.

  As described above, the front wheel 10x of the agricultural machine 2x is configured by the block-shaped lugs 14x that are small in the lateral protrusion. Since the mud 56x is disposed along the side surface of the front wheel 10x, the mud 56x reliably scrapes off the mud 64x adhering to the side. The rear wheel 12x of the agricultural machine 2x includes a blade lug 20x that protrudes greatly to the side. The mud 56x is fixed to the coil spring 52x via the connection plate 58x. For this reason, the mud 56x reliably scrapes off the mud 64x adhering to the rotation leading surface 72x by moving to the outer side in the length direction of the machine body 4x while contacting the rotation leading surface 72x of the lug. Can do. The coil spring 52x as an elastic body repeats bending and shape restoration as the front wheel 10x rotates. Since the tip of the mud 56x is rounded, resistance at the time of contact between the tip of the mud 56x and the rotation leading surface 72x is suppressed. Accordingly, the mud 56x can move smoothly on the rotation leading surface 72x.

  In this agricultural machine 2x, the mud 64x adhering to the wheel 6x can be surely scraped off, so that the mud 64x does not accumulate on the wheel 6x. Since the scraped mud 64x does not accumulate, a lump of mud 64x is not formed. Since this agricultural machine 2x is provided with the positioning adjustment mechanism, the mud 56x can be arranged at a low position from the road surface. For this reason, the position of the mud 64x scraped off is also low. Since the position of the mud 64x to be scraped off is low, the momentum of the mud 64x falling on the road surface is suppressed. In this agricultural machine 2x, the mud 64x does not fall as a lump, and the momentum of the falling mud 64x is suppressed, so that damage to seedlings and the like can be prevented.

  FIG. 13 is a front view showing a part of an agricultural machine 74x according to the third embodiment of the present invention. FIG. 13 shows the vicinity of the rear wheel 76x of the agricultural machine 74x. The configuration of the agricultural machine 74x other than the rear wheel 76x is the same as that of the agricultural machine 2x shown in FIG. The rear wheel 76x includes only a block-shaped lug 78x with a small lateral protrusion on the outer peripheral surface thereof.

  Also in this agricultural machine 74x, the stay 30x includes a coil spring 52x as an elastic body configured to bend when a force is applied and to be restored when the force is removed. And the squeegee member 32x is provided with the mud body 56x arrange | positioned along the side surface of the wheel 80x. For this reason, this mud 56x can reliably scrape off the mud 64x adhering to the side surface of the wheel 80x. Since the mud 64x is surely scraped off, the mud 64x does not accumulate on the wheels 80x. Since this agricultural machine 74x also has a positioning adjustment mechanism similar to that of the agricultural machine 74x of FIG. 11 in its arm portion 26x, the mud 56x can be arranged at a low position from the road surface. For this reason, the position of the mud 64x scraped off is low. Since the position of the mud 64x to be scraped off is low, the momentum of the mud 64x falling on the road surface is suppressed. In this agricultural machine 74x, since the mud 64x does not fall as a lump, and the momentum of the falling mud 64x is suppressed, damage to seedlings and the like can be prevented.

  FIG. 14 is a front view showing an agricultural machine 82x according to a fourth embodiment of the present invention. This agricultural machine 82x includes an airframe 4x, wheels 6x, and a mud dropping device 84x. The machine 4x is equipped with equipment for functioning as a rice transplanter. The wheel 6x includes a front wheel 10x and a rear wheel 12x. This agricultural machine 82x is a four-wheel type rice transplanter. The mud dropping device 84x is attached to the front wheel 10x and the rear wheel 12x. In FIG. 14, the left-right direction represents the length direction of the airframe 4x. The left side of the paper is the front side of the agricultural machine 82x. The vertical direction of the paper surface represents the axial direction of the wheel 6x. The configuration of the agricultural machine 82x other than the mud removing device 84x is the same as that of the agricultural machine 82x in FIG.

  The front wheel 10x includes only a block-shaped lug 14x including a triangular lug 18x and a trapezoidal lug 16x on the outer peripheral surface thereof. For this reason, the protrusion to the side of this front wheel 10x is small. The rear wheel 12x includes a trapezoidal lug 16x and a blade lug 20x on the outer peripheral surface thereof. For this reason, the lateral protrusion of the rear wheel 12x is large.

  FIG. 15 is a partially cutaway front view of a mud dropping device 84x provided in the agricultural machine 82x of FIG. FIG. 16 is a plan view of the mud dropping device 84x of FIG. The mud dropping device 84x includes a support member 86x and a mud discharge member 88x. The support member 86x includes an arm portion 90x attached to the machine body 4x, and a holding portion 92x disposed along the ground contact surface of the wheel 6x from the arm portion 90x. The drainage member 88x is attached to the holding portion 92x and extends in the length direction of the machine body 4x. The squeegee 96x is attached to the stay 94x and extends in the length direction of the machine body 4x. And. The mud dropping device 84x has the same configuration as the mud dropping device 8x shown in FIG. 12 except for the holding portion 92x and the stay 94x. In FIG. 15, the direction perpendicular to the paper surface is the axial direction. The left-right direction is the length direction of the airframe 4x. In FIG. 16, the vertical direction represents the axial direction of the wheel 6x. The left-right direction represents the length direction of the body 4x of the wheel 6x.

  The arm portion 90x includes a first rod 98x, a second rod 100x, a third rod 102x, a first ring 104x, a second ring 106x, and a third ring 108x. And this arm part 90x is also provided with the positioning adjustment mechanism similar to the mud dropping apparatus 8x with which the agricultural machine 2x of FIG. 11 was equipped.

  The holding portion 92x includes a cylindrical body 110x, a substrate 112x, a fixture 114x, and a buffer body 116x. In the holding portion 92x, two cylinders 110x are arranged on both sides of the substrate 112x. The number and location of the cylinders 110x provided in the holding portion 92x are determined as appropriate. One cylinder 110x may be arranged at the center of the substrate 112x.

  The stay 94x includes a coil spring 118x as an elastic body. The coil spring 118x is configured to bend when a force is applied and to be restored when the force is removed. In this agricultural machine 82x, one end of the coil spring 118x is accommodated in the cylindrical body 110x. A flange 120x is formed at the other end of the coil spring 118x.

  The squeegee 96x includes a mud body 122x, a connection plate 124x, a bolt 126x, and a nut 128x. The mud body 122x is configured to scrape off the mud 64x. The mud body 122x is attached to the end of the coil spring 118x. The mud body 122x is disposed along the side surface of the wheel 80x. An adjustment hole 130x is formed on the side of the stay 94x of the mud body 122x. Although not shown, bolt holes through which the bolts 126x are inserted are formed on both sides of the connection plate 124x. The bolt 126x passes through the adjustment hole 130x of the mud body 122x, the bolt hole of the connection plate 124x, and the inside of the flange 120x of the coil spring 118x, and is screwed into the nut 128x disposed below the flange 120x. Also in this agricultural machine 82x, the squeegee 96x is fixed to the stay 94x by tightening the coil spring 118x, the connection body and the mud body 122x with the bolt 126x and the nut 128x. Since the adjustment hole 130x has a long shape in the axial direction, the position of the mud body 122x in the axial direction can be adjusted.

  The front wheel 10x of the agricultural machine 82x is configured by a block-shaped lug 14x with a small lateral protrusion. Since the mud body 122x is disposed along the side surface of the front wheel 10x, the mud body 122x reliably scrapes off the mud 64x adhering to the side surface. The rear wheel 12x of the agricultural machine 82x includes a blade lug 20x that protrudes greatly to the side. The mud body 122x is fixed to the coil spring 118x via the connection plate 124x. For this reason, this mud body 122x is surely scraped off the mud 64x adhering to the rotation leading surface 72x by moving to the outer side in the longitudinal direction of the machine body 4x while contacting the rotation leading surface 72x of this lug. Can do. The coil spring 118x as an elastic body repeats bending and shape restoration as the rear wheel 12x rotates. Since the tip of the mud body 122x is rounded, resistance at the time of contact between the tip of the mud body 122x and the rotation leading surface 72x is suppressed. Accordingly, the mud body 122x can move smoothly on the rotation leading surface 72x.

  Since the arm 90x is provided with the positioning adjustment mechanism, the position of the mud 122x can be adjusted according to the state of the field, the diameter of the wheel 6x, the width of the wheel 6x, the adhesion state of the mud 64x, and the like. In such an agricultural machine 82x, since the mud body 122x can be disposed at a low position from the road surface, the position of the mud 64x to be scraped off is also low. Since the position of the mud 64x to be scraped off is low, the momentum of the mud 64x falling on the road surface is suppressed. In this agricultural machine 82x, the mud 64x does not fall as a lump, and the momentum of the falling mud 64x is suppressed, so that damage to seedlings and the like can be prevented.

  FIG. 17 is a cross-sectional view taken along the line DD in FIG. FIG. 17 shows a state where the coil spring 118x is fixed to the cylindrical body 110x. In FIG. 17, a cylindrical body 110x, a coil spring 118x, a buffer body 116x, and a fixture 114x including a bolt 132x and a nut 134x are shown. A part of the coil spring 118x is accommodated in the cylindrical body 110x. The buffer 116x is accommodated in the cylinder 110x, and is disposed between the coil spring 118x and the cylinder 110x. The cylindrical body 110x includes a fixing hole 136x penetrating from the outer side to the inner side of the cylindrical body 110x. In this device, the bolt 132x is screwed into the fixing hole 136x from the outside of the cylinder 110x, whereby the tip of the bolt 132x presses the side surface of the coil spring 118x via the buffer 116x. The nut 134x tightens the cylinder 110x from the outside thereof, so that the bolt 132x does not move, so that the coil spring 118x is fixed to the cylinder 110x. In this apparatus, the stay 94x can be fixed to the holding portion 92x in this way. Since the coil spring 118x is fixed to the cylindrical body 110x, the coil spring 118x is not deformed or broken. Such a mud dropping device 84x is excellent in durability. In addition, this fixing tool 114x may be comprised with a clamp.

  The buffer body 116x may be a flat sheet having a predetermined size. The buffer body 116x may be a curved sheet formed in advance so that its cross section has a curved shape so that it can be adapted to the outer surface shape of the cylindrical body 110x. The buffer body 116x may be configured to cover the entire circumference of the cylindrical body 110x. As a material of the buffer body 116x, a plastic material and a rubber material are preferable. From the viewpoint of elastic deformation, a rubber material is preferable. Examples of the rubber material include natural rubber, styrene-butadiene rubber, butadiene rubber, and isoprene rubber. From the viewpoint of versatility, natural rubber is preferable.

  The inventors have examined in detail the durability of the mud dropping devices 8x and 84x of the agricultural machines 2x and 82x. In this examination, when the planting speed was changed from 1.5 km / h to 1.7 km / h and rice planting was carried out, the time until the elastic bodies of the mud dropping devices 8x and 84x were damaged was measured. ing. In the mud dropping device 8x attached to the agricultural machine 2x in FIG. 11, the damage of the coil spring 52x is confirmed in two hours from the start of the work. On the other hand, in this mud dropping device 84x, the examination result that the damage of the coil spring 118x was not recognized even if the operation was continued for 40 hours or more was obtained. Also in the examination result by the actual machine, it has been confirmed that the durability of the mud dropping device 84x is further improved than the durability of the mud dropping device 8x in FIG.

  FIG. 18 is a front view showing a part of an agricultural machine 138x according to the fifth embodiment of the present invention. FIG. 18 shows the vicinity of the rear wheel 140x of the agricultural machine 138x. The configuration of the agricultural machine 138x other than the rear wheel 140x is the same as that of the agricultural machine 82x shown in FIG. The rear wheel 140x includes only a block-shaped lug 142x whose protrusion to the side is small.

  Also in this agricultural machine 138x, the stay 94x includes a coil spring 118x as an elastic body configured to bend when a force is applied and to be restored when the force is removed. The coil spring 118x repeats bending and shape restoration as the wheel 144x rotates. And the squeegee 96x is provided with the mud body 122x arrange | positioned along the side surface of the wheel 144x. Therefore, the mud body 122x can reliably scrape off the mud 64x adhering to the side surface of the wheel 144x. Since the mud 64x is surely scraped off, the mud 64x does not accumulate on the wheels 144x.

  The holding portion 92x of the agricultural machine 138x also includes a substrate 112x, a cylinder 110x, a fixture 114x, and a buffer 116x. A part of the coil spring 118x is housed in the cylindrical body 110x and is fixed by being fastened by the fixing tool 114x via the buffer body 116x. Therefore, the coil spring 118x is deformed or broken. There is nothing. Such a mud dropping device 84x is excellent in durability.

  Since the arm portion 90x of the agricultural machine 138x also includes a positioning adjustment mechanism similar to that of the agricultural machine 82x in FIG. 14, the mud body 122x can be disposed at a low position from the road surface. For this reason, the position of the mud 64x scraped off is low. Since the position of the mud 64x to be scraped off is low, the momentum of the mud 64x falling on the road surface is suppressed. In this agricultural machine 138x, since the mud 64x does not fall as a lump, and the momentum of the falling mud 64x is suppressed, damage to seedlings and the like can be prevented.

  Since the mud removing apparatus described in the second to fifth embodiments includes the mud body disposed along the side surface of the wheel, mud adhering to the side surface of the wheel can be surely scraped off. Therefore, mud does not accumulate on the wheels. The stay includes an elastic body that bends when a force is applied and restores when the force is removed. For this reason, in a wheel having a large lateral protrusion such as a blade lug, the tip of the mud body can move outward in the longitudinal direction of the machine body while contacting the top surface of the blade lug. Therefore, this mud dropping device can also scrape mud adhering to the rotation leading surface of the blade lug. The elastic body is fixed to the cylindrical body by being partly accommodated in the cylindrical body and tightened with a fixing tool via a buffer body. For this reason, in an agricultural machine equipped with this mud dropping device, this elastic body does not deform or break during operation. Such a mud removal apparatus is excellent in durability.

FIG. 19 is a side view showing an agricultural machine 2y according to a sixth embodiment which is a reference embodiment of the present invention. The agricultural machine 2y includes a main body 4y, wheels 6y, and a mud dropping device 8y. The main body 4y is equipped with equipment for functioning as a rice transplanter. The wheel 6y is composed of a front wheel 10y and a rear wheel 12y. This agricultural machine 2y is a four-wheel type rice transplanter. The mud dropping device 8y is attached to the rear wheel 12y. In FIG. 19, the left side of the paper is the front side of the agricultural machine 2y. The vertical direction of the paper surface represents the axial direction of the wheel 6y. The agricultural machine 2y may be a two-wheeled vehicle.

  The form, size, and the like of the wheel 6y are appropriately determined in consideration of the specifications of the agricultural machine 2y. In this agricultural machine 2y, the wheel 6y covers the hubs 14ya and 14yb, the spokes 16ya and 16yb extending radially from the hubs 14ya and 14yb, an annular rim attached to the ends of the spokes 16ya and 16yb, and the rim. Elastic ring bodies 18ya and 18yb. An axle is fitted to the hubs 14ya and 14yb. The spokes 16ya and 16yb provided on the wheel 6y are three. The number of spokes 16ya and 16yb may be four or more. In FIG. 19, the rim is not shown because it is covered with the elastic rings 18ya and 18yb.

  The spokes 16ya and 16yb and the rim are made of metal pipes. Examples of the material of the spokes 16ya and 16yb and the rim include steel and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance.

  The hubs 14ya and 14yb and the spokes 16ya and 16yb and the spokes 16ya and 16yb and the rim are joined by welding. These may be joined by a method such as riveting or bolting. In this agricultural machine 2y, the spokes 16ya and 16yb adjacent to the joints with the rim are also partly covered with the elastic rings 18ya and 18yb. In the spokes 16ya and 16yb, a portion covered with the elastic rings 18ya and 18yb is a covering portion 20y.

  The elastic ring bodies 18ya and 18yb are provided with lugs 22ya and 22yb. In this agricultural machine 2y, the lugs 22ya and 22yb have different configurations for the front wheel 10y and the rear wheel 12y. The lug 22ya of the front wheel 10y includes a protrusion 24y and a propulsion part 26y. The protrusion 24y is disposed on the equator plane of the wheel 6y. The propulsion portions 26y extending outward in the axial direction from the protrusions 24y are alternately arranged on the left and right sides in the rotation direction on both sides of the protrusions 24y. The lug 22yb of the rear wheel 12y is provided with a straight guide part 28y and a blade part 30y. The rectilinear guide portions 28y and the blade portions 30y are alternately arranged in the rotation direction. The forms of the lugs 22ya and 22yb are also determined in consideration of the specifications of the agricultural machine 2y. Therefore, the lug 22yb of the rear wheel 12y may be configured by the protrusion 24y and the propulsion unit 26y. In the agricultural machine 2y, the elastic rings 18ya and 18yb are made of a rubber material.

  FIG. 20 is a partially enlarged plan view showing a part of the mud dropping device 8y of FIG. 19 together with the rear wheel 12y. In FIG. 20, the horizontal direction of the paper surface represents the axial direction. The mud dropping device 8y includes an adapter 32y, a support member 34y, and a waste mud member 36y. In FIG. 20, the alternate long and short dash line CLy represents the equator plane of the wheel 6y.

  The adapter 32y is located between the main body 4y and the support member 34y. The adapter 32y is attached to the main body 4y and extends toward the rear wheel 12y. In this agricultural machine 2y, the end portion 44y of the adapter 32y is bent so as to be parallel to the axial direction. The configuration and attachment location of the adapter 32y are determined in consideration of the form of the agricultural machine 2y, the size of the wheels 6y, and the like. The support member 34y may be directly attached to the main body 4y.

  The support member 34y includes a first arm 48y extending from the adapter 32y along one side surface 46y of the wheel 6y, a second arm 50y extending in the axial direction from the first arm 48y, and a wheel 6y extending from the second arm 50y. And a third arm 52y extending along the other side surface 46y.

  The first arm 48y includes a first ring 54y at one outer end and a second ring 56y at the other outer end. The third arm 52y includes a third ring 58y at one outer end. The second arm 50y is fixed to the first arm 48y and the third arm 52y by being gripped by the first ring 54y and the third ring 58y. As the second ring 56y grips the adapter 32y, the support member 34y is fixed to the adapter 32y.

  The mud draining member 36y includes a first mud body 60y, a second mud body 62y, a first grasping body 64y, and a second grasping body 66y. The first slurry 60y extends in the axial direction from the support member 34y side, that is, the first arm 48y side, toward the equatorial plane of the wheel 6y. The first grasping body 64y includes a fourth ring 68y at the outer end thereof. And this 1st grasping body 64y is located between the 1st arm 48y and the 1st slurry 60y, and while fixing this 1st slurry 60y, it is the 1st arm 48y by this 4th ring 68y. Is gripping. The second scraper 62y extends in the axial direction from the third arm 52y side toward the equatorial plane of the wheel 6y. The second grasping body 66y includes a fifth ring 70y at the outer end thereof. The second gripping body 66y is located between the third arm 52y and the second slurry 62y, and fixes the second slurry 62y and holds the third arm 52y by the fifth ring 70y. is doing.

  The first scraper 60y and the second scraper 62y are configured to bend when a force is applied along the rotation direction of the wheel 6y, and the shape is restored when the force is removed. The mud bodies 60y and 62y repeat bending and shape restoration as the wheels rotate. In this agricultural machine 2y, the first and second mud bodies 60y and 62y are coil springs. Examples of the material of the coil spring include metal materials and synthetic polymer materials. From the viewpoint of strength, the coil spring is preferably made of a metal material. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance. In addition, this 1st slurry body 60y and the 2nd slurry body 62y may be comprised with the bar material which consists of rubber materials. In this case, examples of the rubber material include natural rubber, styrene-butadiene rubber, butadiene rubber, and isoprene rubber. From the viewpoint of versatility, natural rubber is preferable.

  The first ring 54y and the third ring 58y are configured to slide the second arm 50y and be fixed at a predetermined position of the second arm 50y. The fourth ring 68y is configured to slide the first arm 48y and be fixed at a predetermined position of the first arm 48y. The fifth ring 70y is configured to slide the third arm 52y and be fixed at a predetermined position of the third arm 52y. The second ring 56y is configured to slide the adapter 32y and be fixed at a predetermined position of the adapter 32y.

  In this agricultural machine 2y, the first arm 48y, the second arm 50y, the third arm 52y, and the adapter 32y are all made of round bars. The round bar may be a square bar having a rectangular cross section. Although not shown, the first ring 54y has a slide hole through which the round bar material constituting the second arm can be inserted, and a screw portion to which the round bar material can be fixed to the outer peripheral side surface of the first ring 54y. I have. The screw portion is composed of a screw and a screw hole. When the screw is screwed into the screw hole, the screw presses the side surface of the round bar. The round bar is fixed by pressing the screw. In the agricultural machine 2y, the second ring 56y, the third ring 58y, the fourth ring 68y, and the fifth ring 70y have the same configuration as the first ring 54y. The agricultural machine 2y is provided with a positioning adjustment mechanism using such a slide lock. In this agricultural machine 2y, by this positioning adjustment mechanism, the positions of the first and second mud bodies 60y and 62y are determined according to the state of the field, the diameter of the wheels 6y, the width of the wheels 6y, the attached state of mud, and the like. Can be adjusted. In this agricultural machine 2y, mud tends to adhere to the vicinity of the covering portion 20y. Therefore, in this agricultural machine 2y, the first slurry body 60y and the second slurry body 62y are arranged at positions where the covering portion 20y can come into contact. In addition, this positioning adjustment mechanism may be comprised with a clamp etc.

  The material of the round bar and the fixture is preferably a metal material from the viewpoint of strength. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance.

  In FIG. 20, a double arrow line DAy represents a gap between the tip 72ya of the first slurry 60y and the tip 72yb of the second slurry 62y located on the wheel 6y equatorial plane side. A point PAy represents the center of the gap DAy. In this agricultural machine 2y, this point PAy is located on the equator plane of the wheel 6y. Note that this point PAy may deviate from the equator plane. The front end 72ya of the first mud discharge portion and the front end 72yb of the second discharge mud portion may contact each other.

  21 is a cross-sectional view taken along line EE in FIG. In FIG. 21, the first slurry 60y, part of the first gripping body 64y, the second slurry 62y, part of the second gripping body 66y, and the covering portion 20y of the device 8y are shown. It is shown. With the rotation of the wheel 6y, the covering portion 20y approaches the first slurry body 60y and the second slurry body 62y. And this coating | coated part 20y contact | abuts to the 1st slurry 60y and the 2nd slurry 62y. In FIG. 21, the arrow line F represents the rotational direction of the wheel 6y.

  FIG. 22 is a cross-sectional view showing a state in which the covering portion 20y is in contact with the first and second mud bodies 60y and 62y. When the covering portion 20y comes into contact with the first scraper 60y and the second scraper 62y, force is applied to the first scraper 60y and the second scraper 62y. Due to this applied force, the first slurry 60y and the second slurry 62y bend. The covering portion 20y passes between the first and second slurry bodies 60y and 62y while being bent. When the covering portion 20y passes between the two, the force applied to the first and second slurry bodies 60y and 62y is removed. Since the first scraper 60y and the second scraper 62y have shape restoring properties, when the force applied to the first scraper 60y and the second scraper 62y is removed, The first mud 60y and the second mud 62y return to the state shown in FIG. In this agricultural machine 2y, such bending and shape restoration of the first and second mud bodies 60y and 62y are repeated. In this way, the spokes 16ya and 16yb are configured to repeat the bending and shape restoration of the mud bodies 60y and 62y as elastic bodies in accordance with the rotation of the wheel 6y. In FIG. 22 as well, the arrow F represents the rotational direction of the wheel 6y.

  When the covering portion 20y comes into contact with the first mud body 60y and the second mud body 62y, the mud adhered to the covering portion 20y is scraped off. As described above, in the device 8y, the covering portion 20y is configured to pass between the first and second mud bodies 60y and 62y, so that the inner side in the axial direction from the side surface 46y of the wheel 6y. The attached mud can be surely scraped off. Because the scraped mud does not adhere and accumulate, no mud mass is formed.

  In this agricultural machine 2y, the length of the first mud 60y or the second mud 62y with which the covering portion 20y abuts is greater than that of the mud drain member whose tip is composed of one mud that exceeds the equator plane. It's short. Therefore, in this agricultural machine 2y, wear of the covering portion 20y is suppressed. In the agricultural machine 2y in which the wear of the covering portion 20y is suppressed, a decrease in the durability of the wheel 6y is suppressed.

  In this agricultural machine 2y, since it is not necessary for the mud removing device 8y to cover the front, rear, left and right of the wheel 6y unlike the conventional mud removing device, an increase in vehicle mass is minimized. For this reason, the runnability in soft ground such as paddy fields does not deteriorate. In addition, since the mud discharge member 36y can be disposed at a position where the height from the road surface is low, the height position where the mud is scraped off is low. For this reason, the momentum of the mud falling on the road surface is suppressed. In this agricultural machine 2y, the mud does not fall as a lump, and the momentum of the falling mud is suppressed, so that damage to seedlings and the like can be prevented.

  23 to 25 show a mud draining member 37y which is a modified example of the mud draining member 36y according to the sixth embodiment. The sludge discharging member 36y is provided with two elastic bodies (coil springs) extending in the axial direction from the support member 34y side toward the equator plane of the wheel 6y. On the other hand, the sludge discharging member 37y is provided with one elastic body (coil spring) extending in the axial direction from the support member 34y side toward the equatorial plane of the wheel 6y. The elastic body is provided only on one side in the axial direction of the wheel 6y. In the following description of the mud discharging member 37y, the same configuration as that of the mud discharging member 36y is given the same reference numeral as that of the mud discharging member 36y and the description thereof is omitted as appropriate.

  The mud draining member 37y includes a mud body 61y and a grasping body 65y. The mud 61y extends in the axial direction from the support member 34y side, that is, the arm 49y side, toward the equatorial plane of the wheel 6y. This grasping body 65y is provided with a ring 69y at its outer end. The gripping body 65y is located between the arm 49y and the mud body 61y, fixes the mud body 61y, and holds the arm 49y by the ring 69y.

  The mud 61y is provided in an axial range that overlaps with the axial width of the covering portion 20y (or the spoke 16yb). The mud 61y crosses from the axial one end side position to the axial other end side position of the covering portion 20y (or the spoke 16yb). That is, the mud body 61 is provided over the entire axial width of the abdomen 20y (or the spoke 16yb). The mud 61y is configured to bend when a force is applied along the rotation direction of the wheel 6y, and the shape is restored when the force is removed. The mud 61y repeats bending and shape restoration as the wheel 6y rotates. The mud 61y is a coil spring. Examples of the material of the coil spring include metal materials and synthetic polymer materials. From the viewpoint of strength, the coil spring is preferably made of a metal material. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance. In addition, this mud 61y may be comprised with the bar material which consists of rubber materials. In this case, examples of the rubber material include natural rubber, styrene-butadiene rubber, butadiene rubber, and isoprene rubber. From the viewpoint of versatility, natural rubber is preferable.

  Similar to the first arm 48y described above, the arm 49y is formed of a round bar. As described above, the second arm 50y, the third arm 52y, and the adapter 32y are all made of a round bar. The round bar may be a square bar having a rectangular cross section. Although not shown, the mud draining member 37y is provided with a positioning adjustment mechanism using such a slide lock. By this positioning adjustment mechanism, the position of the mud 61y can be adjusted according to the state of the field, the diameter of the wheel 6y, the width of the wheel 6y, the adhesion state of mud, and the like. In this agricultural machine 2y, mud tends to adhere to the vicinity of the covering portion 20y. Therefore, in this agricultural machine 2y, the mud 61y is arranged at a position where the covering portion 20y can come into contact. In addition, this positioning adjustment mechanism may be comprised with a clamp etc.

  The material of the round bar and the fixture is preferably a metal material from the viewpoint of strength. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance.

  24 is a cross-sectional view taken along line GG in FIG. In FIG. 24, the mud body 61y, a part of the grasping body 65y, and the covering portion 20y are shown. With the rotation of the wheel 6y, the covering portion 20y approaches the mud 61y. And this coating | coated part 20y contact | abuts to the mud 61y. In FIG. 24, the arrow line H represents the rotation direction of the wheel 6y.

  FIG. 25 is a cross-sectional view showing a state in which the covering portion 20y is in contact with the mud 61y. When the covering portion 20y comes into contact with the mud 61y, a force is applied to the mud 61y. Due to this applied force, the mud 61y bends. The covering portion 20y passes through the tip of the mud 61y while bending the mud 61y. When the covering portion 20y passes through the tip portion, the force applied to the mud 61y is removed. Since this mud 61y has shape restoring properties, when the force applied to the mud 61y is removed, the mud 61y returns to the state shown in FIG. As described above, with the rotation of the wheel 6y, the bending and shape restoration of the mud body 61y, which is an elastic body, are repeated. Thus, the spokes 16ya and 16yb are configured to repeat the bending and shape restoration of the mud 60y as an elastic body with the rotation of the wheel 6y. Also in FIG. 25, the arrow line H represents the rotational direction of the wheel 6y.

  When the covering portion 20y comes into contact with the mud body 61y, the mud adhered to the covering portion 20y is scraped off. As described above, since the covering portion 20y is configured to pass through the tip of the mud 61y while contacting the mud 61y, mud adhered to the inner side in the axial direction from the side surface 46y of the wheel 6y. It can surely be scraped off. Because the scraped mud does not adhere and accumulate, no mud mass is formed.

FIG. 26 is a side view showing a part of an agricultural machine 74y according to a seventh embodiment which is a reference embodiment of the present invention. The agricultural machine 74y includes a main body 4y, wheels 6y, and a mud dropping device 8y. This agricultural machine 74y is also a four-wheeled vehicle in which the wheels 6y are composed of front wheels 10y and rear wheels 76y. FIG. 26 shows a part of the mud dropping device 8y and the rear wheel 76y. The mud dropping device 8y is attached to the rear wheel 76y. The rear wheel 76y is provided with a blade lug 78y protruding on the inner peripheral surface thereof. The configuration other than the rear wheel 76y of the agricultural machine 74y is the same as that of the agricultural machine 2y in FIG. Accordingly, the mud dropping device 8y includes a positioning adjusting mechanism that can adjust the positions of the first and second mud bodies 60y and 62y provided in the mud discharging member 36y. For this reason, in this agricultural machine 74y, the 1st mud body 60y and the 2nd mud body 62y can be arrange | positioned in the position in which the balance of runnability and mud scraping was considered. Therefore, in this agricultural machine 74y, the running performance is not deteriorated due to the interference between the first and second slurry bodies 60y and 62y and the blade lugs 78y. In addition to this, the agricultural machine 74y can surely scrape the mud adhering to the wheel 6y.

FIG. 27 is a plan view showing a part of a mud dropping device 82y provided in an agricultural machine 80y according to an eighth embodiment which is a reference embodiment of the present invention. The agricultural machine 80y includes a main body 4y, wheels 6y, and a mud dropping device 82y. The main body 4y and the wheels 6y of the agricultural machine 80y have the same configuration as the agricultural machine 2y in FIG. This agricultural machine 80y is also a four-wheeled vehicle in which the wheels 6y are composed of front wheels 10y and rear wheels 12y. Also in this agricultural machine 80y, the mud dropping device 82y is attached to the rear wheel 12y. FIG. 27 shows a part of the rear wheel 12y and a part of the mud dropping device 82y.

  The mud dropping device 82y includes an adapter 84y, a supporting member 86y, and a mud discharging member 88y. The support member 86y includes a first arm 90y extending from the adapter 84y along one side surface 46y of the wheel 6y, a second arm 92y extending in the axial direction from the first arm 90y, and the other side surface from the second arm 92y. And a third arm 94y extending along 46y. The mud discharging member 88y includes a first mud 96y extending in the axial direction from the first arm 90y side toward the equator plane of the wheel 6y, and an axial direction from the third arm 94y side toward the equator plane of the wheel 6y. And a second slurry 98y extending in the direction. The first scraper 96y and the second scraper 98y are coil springs.

  In FIG. 27, a double arrow line DBy represents a gap between the tip 100ya of the first slurry body 96y and the tip 100yb of the second slurry body 98y. A double arrow line WBy represents the width of the covering portion 20y in the axial direction. The point PBy is the center of the gap DBy. In this agricultural machine 80y, the tip 100ya of the first slurry body 96y and the tip 100yb of the second slurry body 98y are located on the outer side in the axial direction of the covering portion 20y. The leading ends 100ya and 100yb may be configured to contact the side surface of the covering portion 20y. Therefore, in this agricultural machine 80y, this gap DBy is set equal to or greater than the width WBy. In such an agricultural machine 80y, since the area | region where the 1st slurry body 96y and the 2nd slurry body 98y and the coating | coated part 20y contact is suppressed to the minimum, abrasion of the coating | coated part 20y is suppressed. Since the wear of the covering portion 20y is suppressed, a decrease in durability of the wheel 6y is suppressed. In this agricultural machine 80y, this point PBy is located on the equator plane of the wheel 6y. The point PBy may be shifted from the equator plane.

FIG. 28 is a plan view showing a part of a mud dropping device 104y provided in an agricultural machine 102y according to a ninth embodiment which is a reference embodiment of the present invention. The agricultural machine 102y includes a main body 4y, wheels 6y, and a mud dropping device 104y. A main body 4y and wheels 6y of the agricultural machine 102y have the same configuration as the agricultural machine 2y in FIG. This agricultural machine 102y is also a four-wheeled vehicle in which the wheels 6y are composed of front wheels 10y and rear wheels 12y. Also in this agricultural machine 102y, the mud dropping device 104y is attached to the rear wheel 12y. FIG. 28 shows a part of the rear wheel 12y and a part of the mud dropping device 104y.

  The mud dropping device 104y includes an adapter 106y, a supporting member 108y, and a mud discharging member 110y. The support member 108y includes a first arm 112y extending from the adapter 106y along one side surface 46y of the wheel 6y, a second arm 114y extending in an axial direction from the first arm 112y, and a wheel 6y extending from the second arm 114y. And a third arm 116y extending along the other side surface 46y. The mud discharging member 110y includes a first mud body 118y extending in the axial direction from the support member 108y side, that is, the first arm 112y side toward the equator plane of the wheel 6, and the wheel 6y from the third arm 116y side. And a second slurry 120y extending in the axial direction toward the equatorial plane. As with the mud dropping device 104y shown in FIG. 28, the equatorial plane side tips 122y of the first and second mud bodies 118y and 120y are positioned on the axially outer side of the covering portion 20y. In this agricultural machine 102y, the equatorial plane ends 122ya and 122yb of the first and second slurry bodies 118y and 120y do not come into contact with the covering portion 20y.

  In FIG. 28, a double arrow line DCy represents a gap between the tip 122ya of the first slurry 118y and the tip 122yb of the second slurry 120y. A double arrow line WCy represents the width of the covering portion 20y in the axial direction. The point PCy is the center of the gap DCy. In this agricultural machine 102y, the tip 122ya of the first slurry 118y and the tip 122yb of the second slurry 120y are located on the outer side in the axial direction of the covering portion 20y. Therefore, the gap DCy is larger than the width WCy. large. In such an agricultural machine 102y, since there is no contact between the first slurry 118y and the second slurry 120y and the covering portion 20y, the covering portion 20y is not worn. Since the covering portion 20y does not wear, the durability of the wheel 6y does not decrease. In this agricultural machine 102y, this point PCy is located on the equator plane of the wheel 6y. This point PCy may be shifted from the equator plane.

  In this agricultural machine 102y, since there is no contact between the first slurry body 118y and the second slurry body 120y and the covering portion 20y, the first slurry body 118y and the second slurry body 120y are bent and elastic. Bars that are not considered for restoration may be used. The manufacturing cost of the mud dropping device 104y is reduced by using rods for the first mud body 118y and the second mud body 120y. Examples of the cross-sectional shape of the bar include a circle or a rectangle. The material of the bar is preferably a metal material or a synthetic polymer material. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance. Examples of the synthetic polymer material include plastic materials and rubber materials. From the viewpoint of versatility and workability, a plastic material is preferable. Examples of the plastic material include polyvinyl chloride, polystyrene, polyethylene, polypropylene, polyacetal, and nylon.

  Since the mud dropping apparatus of the sixth to ninth embodiments is not a large-scale configuration covering the front, rear, left and right of the wheel, an increase in vehicle mass is minimized. For this reason, the runnability in soft ground such as paddy fields does not deteriorate. In addition to this, the device is mounted at a low height from the road surface, so that mud is scraped off at a low height from the road surface. In this device, a first and second slurry bodies extending in the axial direction toward the equator plane of the wheel are provided. For this reason, this apparatus can scrape off the mud adhering to an axial direction inner side rather than the side surface of a wheel reliably. Since the scraped mud does not adhere and accumulate, no mud mass is formed. In this apparatus, mud soil does not fall as a lump and the height position to be scraped off is low, so that damage to seedlings and the like is not promoted.

FIG. 29 is a front view showing an agricultural machine 2z according to a tenth embodiment which is a reference embodiment of the present invention. The agricultural machine 2z includes a body 4z, wheels 6z, and a mud dropping device 8z. This machine 4z is equipped with equipment for functioning as a rice transplanter. The wheel 6z is composed of a front wheel 10z mounted in front of the machine body 4z and a rear wheel 12z mounted in the rear of the machine body 4z. This agricultural machine 2z is a four-wheel type rice transplanter. The mud dropping device 8z is attached to the front wheel 10z and the rear wheel 12z. In FIG. 29, the horizontal direction represents the length direction of the body 4z. The left side of the paper is the front side of the agricultural machine 2z. The direction perpendicular to the paper surface represents the axial direction of the wheel 6z.

  The wheel 6z includes an iron wheel 14z and a ring-shaped elastic ring body 16z on the outer side in the radial direction of the iron wheel 14z. The iron wheel 14z includes a boss 18z, spokes 20z that extend radially from the boss 18z, and a ring-shaped rim that is fixed to the end of the spoke 20z. This wheel 6z is a spoke type. This rim is not shown because it is covered with the elastic ring body 16z.

  The elastic ring body 16z includes a lug 22z on the outer peripheral surface thereof. This lug 22z is composed only of block-like lugs 24z. The block-shaped lug 24z includes a trapezoidal lug 26z and a triangular lug 28z. The elastic ring body 16z does not include the blade lug 22z that protrudes to the side of the wheel 6z. The trapezoidal lug 26z is disposed on the equator plane of the wheel 6z. In this trapezoidal lug 26z, there is no protrusion of the wheel 6z to the side. The triangular lug 28z extends outward in the axial direction of the trapezoidal lug 26z. The triangular lugs 28z are alternately arranged on both sides of the trapezoidal lug 26z in the rotation direction. The protrusion of the triangular lug 28z to the side of the wheel 6z is smaller than the blade lug 22z. Such a lateral protrusion of the wheel 6z is small. In addition, the lug 22z of any one wheel 6z of the front wheel 10z and the rear wheel 12z attached to the agricultural machine 2z may be configured by only the block-shaped lug 24z. In this case, the mud dropping device 8z is attached to a wheel 6z in which the lug 22z is composed only of the block-shaped lug 24z. This agricultural machine 2z may be provided with auxiliary wheels. In this case, the mud dropping device 8z may be attached to an auxiliary wheel provided with only the block-like lug 24z without providing the blade lug 22z on the outer peripheral surface thereof.

  FIG. 30 is a plan view showing a part of the mud dropping device 8z provided in the agricultural machine 2z of FIG. In FIG. 30, the vertical direction represents the axial direction of the wheel 6z. The lower side of this page is the outside of the wheel 6z. The horizontal direction represents the length direction of the airframe 4z. The left side of the paper is the front side of the agricultural machine 2z. An alternate long and short dash line CLz represents a center line of the wheel 6z. This center line CLz passes through the equator plane of the wheel 6z.

  The mud dropping device 8z includes a support member 30z and a squeegee 32z as a mud body. The support member 30z includes an arm portion 34z that is fixed to the body 4z, and a holding portion 36z that is disposed along the ground contact surface of the wheel 6z from the arm portion 34z. The squeegee 32z extends from the holding portion 36z in the length direction of the machine body 4z.

  The arm portion 34z has a first rod 38z whose one end is welded to the airframe 4z, a second rod 42z whose first ring 40z is welded to its one end, and is bent. Three rods 44z, a second ring 46z, and a third ring 48z are provided. The first rod 38z extends in the length direction toward the rear side of the body 4z. The second rod 42z extends downward from the first ring 40z. The third rod 44z includes a portion extending in the axial direction and a portion extending in the length direction by being bent.

  The holding part 36z includes a substrate 50z, a bolt 52z, and a nut 54z. The substrate 50z is configured to be long in the axial direction. Although not shown, bolt holes through which the bolts 52z can be inserted are formed on both sides of the substrate 50z. In the mud dropping device 8z, the inner surface 56z of the substrate 50z and the outer peripheral surface 58z of the portion extending in the length direction of the third rod 44z are fixed by welding.

  The squeegee 32z is disposed along the side surface of the wheel 6z. The squeegee 32z includes a handle 60z extending in the length direction from the holding portion 36z toward the front of the machine body 4z, and a claw 62z extending downward from the end of the handle 60z toward the road surface. An adjustment hole 64z is provided on the holding portion 36z side of the handle 60z. The adjustment hole 64z is long in the axial direction. The tip of the claw 62z is rounded. Note that the shape of the squeegee 32z is appropriately determined in consideration of the shape of the lug 22z, the size of the wheel 6z, and the like.

  In the mud dropping apparatus 8z, the handle 60z is disposed on the substrate 50z. The bolt 52z passes through the adjustment hole 64z and the bolt hole, and is screwed into a nut 54z disposed below the bolt hole. By tightening the squeegee 32z and the substrate 50z with the bolt 52z and the nut 54z, the squeegee 32z is directly fixed to the holding portion 36z. As described above, the adjustment hole 64z of the squeegee 32z has a long shape in the axial direction, so that the position of the squeegee 32z in the axial direction can be adjusted. The squeegee 32z may be fixed to the holding portion 36z by another fastening means other than the bolt 52z and the nut 54z.

  The first ring 40z slides on the first rod 38z and can be fixed at a predetermined position. By the first ring 40z sliding on the first rod 38z, the position of the squeegee 32z in the length direction can be adjusted. The second ring 46z can slide on the second rod 42z and be fixed at a predetermined position. The position of the squeegee 32z in the height direction can be adjusted by the second ring 46z sliding on the second rod 42z. The third ring 48z can slide at a portion extending in the axial direction of the third rod 44z and can be fixed at a predetermined position. The position of the squeegee 32z in the axial direction can be adjusted by sliding the portion of the third ring 48z extending in the axial direction of the third rod 44z. Since the third rod 44z rotates in the same direction as the wheel 6z, the angle of the squeegee 32z with respect to the length direction can also be adjusted. The agricultural machine 2z is provided with a positioning adjustment mechanism using such a slide lock. For this reason, this squeegee 32z can be arranged at an optimum position according to the state of the field, the diameter of the wheel 6z, the width of the wheel 6z, the adhesion state of the mud 66z, and the like.

  As described above, the squeegee 32z is disposed along the side surface of the wheel 6z. For this reason, in this agricultural machine 2z, the squeegee 32z surely scrapes off the mud 66z adhering to the side surface of the wheel 6z. Since the mud 66z attached to the wheel 6z is surely scraped off, the mud 66z does not accumulate on the wheel 6z. Since the mud 66z does not accumulate, the lump of the mud 66z is not formed.

  Since this agricultural machine 2z is provided with the positioning adjustment mechanism, the squeegee 32z can be arranged at a low position from the road surface. For this reason, the position of the mud 66z to be scraped off is low. Since the position of the mud 66z to be scraped off is low, the momentum of the mud 66z falling on the road surface is suppressed. In this agricultural machine 2z, the mud 66z does not fall as a lump, and the momentum of the falling mud 66z is suppressed, so that damage to seedlings and the like can be prevented.

  Examples of the material of the squeegee 32z include metal materials and synthetic polymer materials. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance. Examples of the synthetic polymer material include plastic materials and rubber materials. From the viewpoint of strength and versatility, a plastic material is preferable. Examples of the plastic material include polyvinyl chloride, polystyrene, polyethylene, polypropylene, polyacetal, and nylon.

  FIG. 31 is a front view showing a part of an agricultural machine 68z according to the eleventh embodiment of the present invention. This agricultural machine 68z includes an airframe, wheels 70z, and a mud dropping device 72z. The agricultural machine 68z is a four-wheel type rice transplanter in which the wheel 70z is composed of a front wheel and a rear wheel. FIG. 31 shows a wheel 70z and a mud dropping device 72z attached to the wheel 70z. The configuration of the agricultural machine 68z other than the mud removing device 72z is the same as that of the agricultural machine 68z shown in FIG. In FIG. 31, the horizontal direction represents the length direction of the aircraft. The left side of the paper is the front side of the agricultural machine 68z. The direction perpendicular to the paper surface represents the axial direction of the wheel 70z.

  FIG. 32 is a plan view showing a part of the mud dropping device 72z of FIG. In FIG. 32, the vertical direction represents the axial direction of the wheel 70z. The lower side of this page is the outside of the wheel 70z. The horizontal direction represents the length direction of the aircraft. The left side of the paper is the front side of the agricultural machine 68z. An alternate long and short dash line CLz represents a center line of the wheel 70z. The center CLz passes through the equator plane of the wheel 70z.

  The mud dropping device 72z includes a support member 74z and a squeegee 76z. The support member 74z includes an arm portion 78z that is fixed to the airframe, and a holding portion 80z that is disposed along the ground contact surface of the wheel 70z from the arm portion 78z. The squeegee 76z extends in the length direction of the fuselage from the holding portion 80z. The squeegee 76z is directly fixed to the holding portion 80z by bolts 82z and nuts 84z. The configuration of the mud dropping device 72z other than the squeegee 76z is the same as that of the mud dropping device 72z shown in FIG.

  The squeegee 76z is disposed along the side surface of the wheel 70z. The squeegee 76z includes a handle 86z extending in the length direction from the holding portion 80z, and a claw 88z extending downward from the end of the handle 86z toward the road surface. The handle 86z includes an adjustment hole 90z on the holding portion 80z side. The adjustment hole 90z has a shape that is long in the axial direction. The tip of the claw 88z is rounded. In the mud dropping device 72z, the squeegee 76z located inside the wheel 70z further includes an elastic member 92z as an elastic body on the tip side.

  The elastic member 92z is located below the claw 88z and is fixed to the front surface of the claw 88z. The elastic member 92z extends in the axial direction from the inside to the outside of the wheel 70z. The tip of the elastic member 92z reaches the tip of the squeegee 76z located outside the wheel 70z beyond the equator plane of the wheel 70z. In addition, each squeegee 76z located on the outer side and the inner side of the wheel 70z may include an elastic member 92z extending toward the equator plane of the wheel 70z on the tip side. In this case, the elastic member 92z is configured such that the tip thereof is disposed on the equator plane.

  The elastic member 92z includes a fixed portion 94z welded to the claw 88z and a coil spring 96z as an elastic body. Since the arm portion 78z includes a positioning adjustment mechanism, the coil spring 96z is disposed at an optimum position. In the wheel 70z, a boundary portion 98z is between the spoke 20z and the elastic ring body. In the mud dropping device 72z, the coil spring 96z is arranged so that the boundary portion 98z can come into contact therewith.

  With the rotation of the wheel 70z, the boundary portion 98z comes into contact with the coil spring 96z. When the boundary portion 98z abuts on the coil spring 96z, a force is applied to the coil spring 96z. The coil spring 96z is bent by the applied force. The boundary portion 98z moves while bending the coil spring 96z. When the boundary portion 98z moves away from the coil spring 96z, the force applied to the coil spring 96z is removed. When the force applied to the coil spring 96z is removed, the shape of the coil spring 96z is restored. In this agricultural machine 68z, such bending and shape restoration of the coil spring 96z are repeated. At the time of traveling, the coil spring 96z bends when a force is applied, and the shape of the coil spring 96z is restored when the force is removed. Therefore, the contact between the boundary portion 98z and the coil spring 96z is not impaired. Is repeated.

  Since the boundary portion 98z comes into contact with the coil spring 96z, the mud 66z attached to the boundary portion 98z is scraped off. For this reason, in this agricultural machine 68z, the mud 66z attached to the inner side of the side surface of the wheel 70z can be surely scraped off. As described above, since the squeegee 76z is arranged along the side surface of the wheel 70z, the mud 66z attached to the side surface of the wheel 70z is also scraped off reliably. Since the mud 66z is surely scraped off, the mud 66z does not accumulate on the wheel 70z. Since the mud 66z does not accumulate, the lump of the mud 66z is not formed. In the agricultural machine 68z, a positioning adjustment mechanism is used, and the squeegee 76z can be disposed at a position where the height from the road surface is low. For this reason, the mud 66z is scraped off at a position where the height from the road surface is low. Since the height of the mud 66z to be scraped off is low, the momentum of the mud 66z falling on the road surface is suppressed. In this agricultural machine 68z, since the mud 66z does not fall as a lump, and the momentum of the falling mud 66z is suppressed, damage to seedlings and the like can be prevented.

  Examples of the material of the coil spring 96z include a metal material and a synthetic polymer material. From the viewpoint of strength, the coil spring 96z is preferably made of a metal material. Examples of the metal material include steel, aluminum alloy, and stainless steel. Stainless steel is preferred from the viewpoint of corrosion resistance. In addition, this coil spring 96z may be comprised with the bar material which consists of rubber materials. In this case, examples of the rubber material include natural rubber, styrene-butadiene rubber, butadiene rubber, and isoprene rubber. From the viewpoint of versatility, natural rubber is preferable.

  Since the mud dropping apparatus of the tenth embodiment and the eleventh embodiment includes the squeegee as a mud body extending along the side surface of the wheel, the mud adhering to the side surface of the wheel is surely scraped off. For this reason, mud does not accumulate on a wheel. Since mud does not accumulate on the wheels, no mud mass is formed. In the agricultural machine to which the mud dropping device is attached, mud does not fall as a lump, so that mud covering, folding and falling do not occur on seedlings.

  The mud dropping apparatus according to the present invention can be mounted on various agricultural machines.

FIG. 1 is a side view showing a mud removing apparatus according to an embodiment of the mud removing apparatus according to the present invention. FIG. 2 is a view taken along line AA in FIG. 3 is a view taken in the direction of arrows BB in FIG. FIG. 4 is a diagram illustrating the movement of the elastic stay portion corresponding to FIG. FIG. 5 is a view taken along the line CC of FIG. FIG. 6 is a diagram for explaining the usage situation (corresponding to FIG. 2). FIG. 7 is a diagram (corresponding to FIG. 2) for explaining the usage situation. FIG. 8 is a side view showing an example of attachment to an agricultural machine. FIG. 9 is a side view showing a modified example of the mud discharging member (squeegee portion). FIG. 10 is a side view illustrating a conventional problem phenomenon. FIG. 11 is a front view showing an agricultural machine according to an embodiment of the present invention. FIG. 12 is a plan view showing a part of the mud dropping device provided in the agricultural machine of FIG. 11. FIG. 13 is a side view showing a part of an agricultural machine according to another embodiment of the present invention. FIG. 14 is a front view showing an agricultural machine according to still another embodiment of the present invention. FIG. 15 is a partially cutaway front view of a mud dropping device provided in the agricultural machine of FIG. FIG. 16 is a plan view of the mud dropping apparatus of FIG. FIG. 17 is a cross-sectional view taken along the line DD in FIG. FIG. 18 is a side view showing a part of an agricultural machine according to still another embodiment of the present invention. FIG. 19 is a side view showing an agricultural machine according to an embodiment of the present invention. 20 is a partially enlarged plan view showing a part of the mud dropping device attached to the agricultural machine of FIG. 19 together with the rear wheel. 21 is a cross-sectional view taken along line EE in FIG. It is sectional drawing by which the state which the coating | coated part contact | abutted to the 1st scraping body and the 2nd scraping body was shown. FIG. 22 is a cross-sectional view showing a state where the covering portion is in contact with the first and second scrapers and the first and second scrapers are bent. FIG. 23 is a partially enlarged plan view showing a part of a modified example of the mud dropping apparatus shown in FIG. 24 is a cross-sectional view taken along line GG in FIG. It is sectional drawing in which the state in which the coating | coated part is contact | abutting to the mud body was shown. FIG. 25 is a cross-sectional view showing a state where the covering portion is in contact with the mud body and the mud body is bent. FIG. 26 is a side view showing a part of an agricultural machine according to another embodiment. FIG. 27 is a plan view showing a part of a mud dropping device provided in an agricultural machine according to still another embodiment. FIG. 28 is a plan view showing a part of a mud dropping device provided in an agricultural machine according to still another embodiment. FIG. 29 is a front view showing an agricultural machine according to an embodiment of the present invention. FIG. 30 is a plan view showing a part of the mud dropping device provided in the agricultural machine of FIG. FIG. 31 is a front view showing a part of an agricultural machine according to another embodiment of the present invention. FIG. 32 is a plan view showing a part of the mud dropping apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mud removal apparatus 2 ... Agricultural machine 5 ... Support member 6 ... Mud discharge member 10 ... Squeegee part (sludge body)
11 ... Elastic stay (elastic body)
DESCRIPTION OF SYMBOLS 21 ... Tip part 30 ... Proximity position adjustment means 31 ... Height adjustment means 32 ... Left-right position adjustment means 33 ... Angle adjustment means 100 ... Side protrusion lug 102 ... Wheel 112 ... Rotation leading surface 2x, 74x, 82x, 138x ... Agricultural machinery 4x ... Airframe 6x, 80x, 144x ... Wheels 8x, 84x ... Mud drop device 10x ... Front wheels 12x, 76x , 140x ... rear wheels 14x, 78x, 142x ... block-shaped lugs 16xa, 16xb ... trapezoidal lugs 18x ... triangular lugs 20x ... vane lugs 22x, 86x ... support members 24x, 88x ..Mudging member 26x, 90x ... Arm part 28x, 92x ... Holding part 30x, 94x ... Stay 32x, 96x ... Squeegee 34x, 98x ... First b 36x, 100x ... second rod 38x, 102x ... third rod 40x, 104x ... first ring 42x, 106x ... second ring 44x, 108x ... third ring 46x, 112x・ ・ Boards 48x, 60x, 126x, 132x ... Bolts 50x, 62x, 128x, 134x ... Nuts 52x, 118x ... Coil springs 54xa, 54xb, 120x ... 、 56x, 122x ... Mud Body 58x, 124x ... Connection plate 64x ... Mud 66x ... Pattern 68x ... Claw 70x, 130x ... Adjustment hole 72x ... Pre-rotation surface 110x ... Tube 114x ... Fixed 116x ... buffer body 136x ... fixed hole 2y, 74y, 80y, 102y ... agricultural machine 4y ... main body 6y ... Wheel 8y, 82y, 104y ... Mud drop device 10y ... Front wheel 12y, 76y ... Rear wheel 14ya, 14yb ... Hub 16ya, 16yb ... Spoke 18ya, 18yb ... Elastic wheel 20y ..Coating part 22ya, 22yb ... Lug 24y ... Projection part 26y ... Propulsion part 28y ... Linear guiding part 30y ... Blade part 32y, 84y, 106y ... Adapter 34y, 86y, 108y ... Support members 36y, 88y, 110y ... Drainage member 42y ... Bottom 44y ... End 46y ... Side 48y, 90y, 112y ... First arm 50y, 92y, 114y ... Second arm 52y, 94y, 116y ... Third arm 54y ... First ring 56y ... Second ring 58y ... Third ring 6 y, 96y, 118y ... 1st slurry 62y, 98y, 120y ... 2nd slurry 64y ... 1st grip body 66y ... 2nd grip body 68y ... 4th ring 70y・ ・ ・ Fifth ring 72ya, 72yb, 100ya, 100yb, 122ya, 122yb ... Tip 78y ... Blade lug 124y ... Rim 2z, 68z ... Agricultural machinery 4z ...
6z, 70z ... Wheels 8z, 72z ... Mud drop device 10z ... Front wheel 12z ... Rear wheel 14z ... Iron wheel 16z ... Elastic wheel 18z ... Boss 20z ... Spoke 22z ... lugs 24z ... block-shaped lugs 26z ... trapezoidal lugs 28z ... triangular lugs 30z, 74z ... support members 32z, 76z ... squeegees 34z, 78z ... arm parts 36z, 80z ... Holding part 38z ... First rod 40z ... First ring 42z ... Second rod 44z ... Third rod 46z ... Second ring 48z ... Third ring 50z・ Substrate 52z ... Bolt 54z ... Nut 56z ... Inner side surface 58z ... Outer peripheral surface 60z, 86z ... Handle 62z, 88z ... Nail 64z, 90z ... Adjustment hole 66z · Mud 92z ··· elastic member (elastic body)
94z ・ ・ ・ fixed part 96z ・ ・ ・ coil spring 98z ・ ・ ・ boundary part

Claims (21)

A mud member having a mud body that scrapes off mud adhering to the wheel, and a support member that supports the mud member,
The waste mud member includes an elastic body that repeats bending and shape restoration with the rotation of a wheel, and the mud body attached to an end of the elastic body,
The elastic body is a coil spring,
The coil spring is bent by a side protruding lug attached to the side surface of the wheel or mud attached to the side surface of the wheel,
A mud dropping device configured such that the mud body repeats a swinging operation by the bending of the coil spring, and mud adhering to the mud body is removed by repeating the swinging operation.   The mud dropping device according to claim 1, further comprising a positioning adjustment mechanism capable of adjusting a position of the mud body. Equipped with wheels and a mud drop device,
This mud removing device comprises a mud draining member having a mud body that scrapes off mud adhering to the wheel, and a support member that supports the mud draining member,
The waste mud member includes an elastic body that repeats bending and shape restoration with the rotation of a wheel, and the mud body attached to an end of the elastic body,
The elastic body is a coil spring,
The coil spring is bent by a side protruding lug attached to the side surface of the wheel or mud attached to the side surface of the wheel,
An agricultural machine configured such that the mud body repeats the swinging motion by the bending of the coil spring, and the mud adhering to the mud body is wiped off by repeating the swinging motion. A support member extending from the body of the agricultural machine toward the outer periphery of the rotating area excluding the contact area of the wheel with a laterally protruding lug equipped on the agricultural machine, and toward the rotating area of the laterally protruding lug when the wheel rotates The sludge member projecting from the support member, and the sludge member abuts against the rotation leading surface of the laterally projecting lug and scrapes the adhering mud, and the laterally projecting member. Along with the rotation of the lug, there is an elastic body that maintains the contact state with the side protrusion lug by the mud body and that generates elasticity in a direction to return to the original position after the side protrusion lug has passed through the rotation. And
The mud body is attached to the end of the elastic body,
The elastic body is a coil spring,
The agriculture according to claim 1, wherein the mud body repeats the swinging motion by the bending of the coil spring, and the mud adhered to the mud body is wiped off by repeating the swinging motion. Machine wheel mud remover.   The mud dropping device for a wheel for an agricultural machine according to claim 4, wherein the support member is provided with a proximity position adjusting means for adjusting a position of the mud discharging member along a radial direction of the wheel. .   6. The height adjustment means which enables position adjustment of a sludge member along the height direction from a ground contact ground is provided in the said support member, The Claim 4 or Claim 5 characterized by the above-mentioned. A mud remover for wheels for agricultural machinery.   The left and right position adjusting means for enabling the position adjustment of the sludge discharging member along the axial direction of the wheel is provided on the support member. A mud remover for wheels for agricultural machinery.   5. The support member according to claim 4, further comprising an angle adjusting means for adjusting an abutting angle at which the mud body of the drainage member abuts against the side protruding lug. Item 8. A mud removing device for a wheel for an agricultural machine according to any one of Items 7 to 9.   The tip of the mud body of the mud member is formed in a circular cross section in a direction in which the mud body slides while abutting against the rotation leading surface of the side protruding lug. A wheel mud remover for agricultural machinery according to any one of the above.   The mud body of the mud draining member is characterized in that a tip portion is inclined at an angle parallel to an inclination angle (θ) at which a rotation leading surface of a side protruding lug protrudes from a wheel side surface. Item 10. A mud removing apparatus for agricultural machinery wheels according to any one of Items 4 to 9.   The sludge body of the above-mentioned sludge member is abutted at an angle close to a right angle with respect to the rotation leading surface of the side protruding lug, and is formed into an L-shaped hook shape so as to prevent catching with the side protruding lug when the wheel is reversed. It forms, The mud dropping apparatus of the wheel for agricultural machines in any one of Claims 4-10 characterized by the above-mentioned.   The mud body of the sludge member is formed to have a convex curve in such a way that it is abutted against the rotation leading surface of the side protruding lug and prevents the side protruding lug from being caught when the wheel is reversed. The wheel mud removing apparatus for agricultural machinery according to any one of claims 4 to 11.   13. The scraper of the mud member is formed in a shape in which a side edge portion facing the wheel side surface is in contact with or close to the wheel side surface. Agricultural machine wheel mud remover as described.   The agricultural machine according to any one of claims 4 to 13, wherein the mud draining member is formed of a sludge body and an elastic body as separate members so as to be connected to and separated from each other. Wheel mud remover.   The mud member is provided with a connecting plate between the mud body and the elastic body, and a base rod is provided at the base of the elastic body, and the mud body and the connecting plate, the connecting plate and the elastic member are elastic. The mud drop device for agricultural machinery wheels according to claim 14, wherein the body, the elastic body and the base rod are fixed by fastening means.   The drainage member is provided with a connecting plate between the mud body and the elastic body, and the mud body can be adjusted in the left-right position based on the connecting plate, and the mud body according to the width of the wheel. The wheel mud removing apparatus for agricultural machinery according to claim 14, wherein a gap between the wheel and the wheel can be adjusted. A holding part attached to the airframe, a stay attached to the holding part and extending in the length direction of the airframe, and attached to the stay and extending in the length direction of the airframe along the side surface of the wheel The holding portion includes a cylindrical body, a buffer body accommodated in the cylindrical body, and a fixture, and the stay is bent when force is applied. It is provided with an elastic body that is restored when removed, and this elastic body is fixed to the cylindrical body by being partly accommodated in the cylindrical body and tightened with a fixture via a buffer body,
The mud body is attached to the end of the elastic body,
The elastic body is a coil spring,
The coil spring is bent by a side protruding lug attached to the side surface of the wheel or mud attached to the side surface of the wheel,
The mud remover for agricultural machinery is configured such that the mud body repeats the swinging motion by the bending of the coil spring, and mud adhering to the mud is wiped off by repeating the swinging motion. . It has a fuselage, wheels, and a mud drop device.
This wheel includes a front wheel having only a block-like lug on its outer peripheral surface, and a rear wheel having a blade lug on its outer peripheral surface,
The mud drop device is attached to the aircraft, a holding unit attached to the holding unit and extending in the longitudinal direction of the aircraft, and the length of the aircraft along the side of the wheel attached to the stay. With a slurry extending in the vertical direction,
This stay is provided with an elastic body that bends when force is applied and restores when the force is removed,
The mud body is attached to the end of the elastic body,
The elastic body is a coil spring,
The coil spring is bent by the blade lug attached to the side surface of the wheel or mud attached to the side surface of the wheel,
An agricultural machine configured such that the mud body repeats the swinging motion by the bending of the coil spring, and the mud adhering to the mud body is wiped off by repeating the swinging motion. The holding portion includes a cylinder, a buffer body accommodated in the cylinder, and a fixture.
The agricultural machine according to claim 18, wherein a part of the elastic body is housed in the tubular body and is fastened to the tubular body by being fastened with a fixture via a buffer body. It has a fuselage, wheels, and a mud drop device.
This wheel is provided with a front wheel and a rear wheel provided with only a block-like lug on its outer peripheral surface
The mud drop device is attached to the aircraft, a holding unit attached to the holding unit and extending in the longitudinal direction of the aircraft, and the length of the aircraft along the side of the wheel attached to the stay. With a slurry extending in the vertical direction,
This stay is provided with an elastic body that bends when force is applied and restores when the force is removed,
The mud body is attached to the end of the elastic body,
The elastic body is a coil spring,
Due to the mud adhering to the side of the wheel, the coil spring is bent,
An agricultural machine configured such that the mud body repeats the swinging motion by the bending of the coil spring, and the mud adhering to the mud body is wiped off by repeating the swinging motion. The holding portion includes a cylinder, a buffer body accommodated in the cylinder, and a fixture.
21. The agricultural machine according to claim 20, wherein a part of the elastic body is housed in the tubular body and is fastened to the tubular body by being tightened with a fixture via a buffer body.

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