JP5991659B2 - Tire removal apparatus and method - Google Patents

Description

  The present invention forcibly removes soil adhering to agricultural tires used for tractors when leaving the field (field), thereby minimizing the removal of cultivated soil from the field and reducing contamination of the paved road surface. The present invention relates to a tire removal apparatus and a removal method.

In the past, it has been pointed out that soil adhering to the tractor, such as tractor plowing work, has fallen and scattered on the paved road, resulting in the spread of environmental pollution and diseases in the region. In recent years, there are local governments that have been enacted with ordinances that stipulate that they must be cleaned and restored to their original state, and effective measures are required from the viewpoint of beautifying and preserving not only urban farmland but also mountainous farmland.
According to a questionnaire survey (2010 IKEN Center) conducted for local public bodies (47 prefectures) and farmers (45 prefectures) nationwide, there were complaints and consultations about road pollution damage from citizens. "18% (207 groups) of local governments." In addition, 94% (656 people) of farmers have experience of dropping mud on the road, and 9% of them are “no time to clean (35%)” or “troublesome smell (25%)”. The answer was “I have never cleaned it”. In addition, the local governments have struggled to adjust and deal with the cause and the whistleblower over the restoration of the original condition, and the farmers have received the opinion that a mechanism that can remove mud without mechanical cleaning is required. ing.
Against this background, forced soil removal from tractor tires when working in the field or when leaving the field minimizes the removal of cultivated soil from the field and reduces pavement surface contamination. It is considered necessary to develop a mud removal device. However, agricultural tires, unlike passenger car tires, are equipped with lugs so that they can run in a soft field without slipping, and it is not easy to remove the soil that has entered between the lugs. It is necessary to use a demudging device.

  Among the conventional technologies, as countermeasures for adhesion prevention, the tire tread surface is covered with a cover sheet made of a rubber material or a fluororesin coating material by covering the traveling body having a lug on the tread with a cover sheet to prevent mud adhesion. There is a technology, and a mud removal accelerating body technology for adhering a waste mud sheet made of sponge, foam rubber or the like to a valley of a rug. However, both require time for advance preparation and are not suitable in consideration of towing work by permanent tire installation.

  In addition, as a technique for removing mud after adhesion using external power, etc., a technique for scraping the mud remover of the rotating body against the crawler surface by driving the motor, pressurized air toward the tire circumference on the vehicle It is equipped with jetting nozzles to remove mud by pneumatic pressure, or a vehicle body jack-up device for idling tires, a safety frame with a water tank, water injection nozzle and water injection motor, and rear wheels. There is a traveling vehicle or the like that injects water. In addition, a pit cleaning system that removes mud by installing a simple water tank on the site and passing a vehicle is put into practical use mainly for 2t to 10t dump trucks. However, these technologies require external power sources such as a power source and a water source in the field, and the place of use is limited.

Furthermore, as a technology for removing mud after adhesion, a technology is provided to scrape off the mud adhering to the rear wheel by providing a mud scraping projecting from the side to the rear wheel side behind the vehicle fender, in the vicinity of the rear wheel axle or the front wheel axle. Technology to jack up the vehicle in the field, etc. by rotating the legs, and the tires are idled to remove the adhering mud (for example, Patent Document 1), coil springs below the center of rotation of the spoke wheel axle There exists a technique (for example, patent document 2) which drops the mud adhering to a wheel by the provided mud discharging member.
However, the technique disclosed in Patent Document 1 has a problem that vehicle modification is required for mounting the device. In addition, the mud dropping device described in Patent Document 2 is configured such that when the wheel rotates, the contact between the sludge body and the wheel and the disengagement from the wheel are repeated with the deflection and shape restoration of the elastic body. However, since the mud body is provided directly on the coil spring, the mud dropping device changes the angle of the mud body with respect to the coil axis and the wheel, so that mud between the lugs unique to agricultural tires can be sufficiently removed. The removal action is not enough. For this reason, conventionally, for example, an operation for removing mud adhering between the lugs using a mud dropping tool (for example, Patent Document 3) for removing mud between the lugs has been required.

Japanese Patent Laid-Open No. 2003-19949 JP 2007-168733 A JP 2009-274655 A

  Accordingly, the present invention provides a tire dehumidifying device and a removal device that forcibly remove soil adhering to agricultural tires of a tractor, thereby minimizing the removal of cultivated soil from the field and reducing contamination of the pavement surface. It aims to provide a mud method. In addition, by constructing a tire mud removal device that has sufficient durability, is lightweight and compact, and that has a simple structure and excellent practicality, it is possible to realize lightening and labor saving of the mud removal work. It is aimed.

According to a first aspect of the present invention, there is provided a tire mud removal apparatus comprising two mud removal units corresponding to a pair of left and right agricultural tires, each of the mud removal units scraping off mud adhering to the agricultural tires. and mud scraping unit dropping, the support portion for supporting the mud scraping portion to be rotatable in a predetermined direction, Bei example an elastic body for urging the mud scraper unit in the agricultural tire surface direction, respectively The mud removing unit is fixed at a mud removing position behind the pair of left and right agricultural tires by a frame, and the base plate has a base plate connected and reinforced by a loop-shaped reinforcing material. A storage rotation shaft is provided, and each of the mud removal units is provided so as to be rotatable about the storage rotation shaft. By rotating the frame, the scraping portion is pivotally Jodoro unit in a predetermined direction which can be positioned in a storage position inside the dividing mud position and the agricultural tires of the agricultural tires rear Is provided.
According to this configuration, the elastic body portion can be biased toward the agricultural tire surface in a state where the movement of the scraping portion is restricted so as to move only in a predetermined direction. For this reason, the mud scraping part with respect to the curved surface (both running surface and side surface) of the tire surface is regulated so that the angle is within a predetermined range, and a lug is formed on the surface as the agricultural tire rotates. Will follow the curved surface of the tire. Therefore, it is possible to realize an effective mud removal by maintaining the angle of the mud scraping part with respect to the agricultural tire surface within a range in which the mud removal action is good. Moreover, the demudging device is always provided, and the demudging position and the storage position can be easily moved as necessary.
According to a second aspect of the present invention, in the tire dehumidifying device according to the first aspect, the mud scraping section has an angle between the agricultural tire surface and the mud scraping section within a predetermined range. It can be maintained within. According to this configuration, the moving direction of the scraping portion can be restricted to the rotation direction, and the angle between the agricultural tire surface and the scraping portion can be maintained within a range suitable for demudging.
According to a third aspect of the present invention, in the tire mud removal apparatus according to the second aspect, the mud scraping part is divided into a plurality of parts, and each of the divided mud scraping parts is individually provided. It is provided so that rotation is possible. With this configuration, each region in the width direction of the agricultural tire can be efficiently removed.
The present invention described in claim 4 is the tire removing mud according to claim 1, the lower link above the inner of the tractor body inside the agricultural tires, bags engagement for locking the falling soil collecting bag A stop is provided. According to this configuration, the mud removed from the inside of the agricultural tire can be collected in the fallen soil collection bag locked to the bag locking portion. For this reason, the collection | recovery operation | work of the mud produced by the mud removal and the operation | work which removes mud from the tractor main body after a mud removal can be made easy.
The present invention according to claim 5, in the dehumidifying mud according to claim 1, as the mud scraping section, and a thermoplastic resin.
According to a sixth aspect of the present invention, in the tire mud removal device according to the first aspect , the present invention further includes a biasing force adjusting means for changing a biasing force of the elastic body portion . With this configuration, the urging force can be adjusted according to the lug shape of the agricultural tire and the mud of the field used.
The present invention described in claim 7 is the tire removing mud according to any one of claim 1 to 6, and a fixing means for fixing the previous SL frame auto hitch. According to this structure, the attachment structure of a mud removal apparatus can be simplified. Here, the device called “auto hitch (quick hitch)” refers to a device used to attach a work machine that can be moved up and down by a hydraulic device. By attaching the mud removing device via the mud removing frame fixed to the auto hitch (quick hitch), the attachment structure of the mud removing device can be simplified.
The mud removal method of the present invention described in claim 8 is a mud removal method performed using the tire demudging device according to any one of claims 1 to 7 , wherein the mud removal device is used at a work site. the switch to the dividing mud position from the storage position, in parallel with the agricultural implement lean mud work. As described above, when the mud is clogged between the lugs of the agricultural tire and the driving force is reduced, the mud removal operation is performed in parallel with the farming operation, so that the driving force can be maintained and improved.

According to the tire dehumidifying device of the present invention, the soil attached to the agricultural tire of the tractor is forcibly removed, thereby minimizing the removal of cultivated soil from the field and reducing the contamination of the paved road surface. Is possible. In addition, by constructing a tire dehumidifier that has sufficient durability, is lightweight and compact, has a simple structure, and is excellent in practicality, it is possible to realize lightening and labor saving in demuding work. Is possible.
According to the mud removal method of the present invention, if necessary, a tire mud removal device is used in parallel with farm work to prevent mud from adhering to agricultural tires and to suppress the growth of adhering soil. It is possible to improve the work efficiency by suppressing the decrease of the above.

The front perspective view of the tire mud removal apparatus which is the 1st Embodiment of this invention 1 is a rear perspective view of the tire mud removal apparatus of FIG. 1 is a rear perspective view showing a state where the tire demudging device of FIG. 1 is attached. 1 is a rear perspective view showing a state in which the tire dehumidifier of FIG. 1 is attached to an auto hitch (quick hitch). The top view which shows the state which has arranged the mud removal unit in the tire mud removal position behind the agricultural tire Side view showing a state in which the mud removal unit is disposed at the tire mud removal position behind the agricultural tire Side view explaining the angle of the mud scraper with respect to the agricultural tire The perspective view which shows the urging | biasing force adjustment means of a mud removal unit The principal part perspective view explaining the storage mechanism of a mud removal unit The principal part perspective view which shows the state in which the mud removal unit was stored in the predetermined position The front perspective view which shows the tire mud removal apparatus provided with the bag latching | locking part for latching the falling soil collection | recovery bag which is the 2nd Embodiment of this invention. Drawing substitute photograph showing the state of mud recovery by the tire dehumidifier of FIG.

(First embodiment)
A first embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a front perspective view of the tire mud removal apparatus of the present embodiment as viewed from the front side, FIG. 2 is a rear perspective view of the tire demudation apparatus of FIG. 1 as viewed from the rear side, and FIG. It is a back perspective view showing the state where the tire demuding device of this was attached.

  As shown in FIGS. 1 to 3, the tire mud removal apparatus 100 of the present embodiment includes two mud removal units 10 corresponding to the pair of left and right agricultural tires 200. The mud removing unit 10 includes a mud scraping unit 1A to E for scraping off mud adhering to the agricultural tire 200, a supporting unit 2A to 2E for supporting the mud scraping unit 1, and a mud scraping unit 1 on the surface of the agricultural tire 200. A coil spring 3 is provided as an elastic body portion biased in the direction, and the support portions 2A to 2E are rotatably supported by the main body portion 4. Below, when not distinguishing mud scraping off part 1A-E or support part 2A-E, it is only called mud scraping off part 1 or support part 2.

  The mud scraping unit 1 is configured to be detachable from the support unit 2. For this reason, by replacing the mud scraping unit 1, the mud removing unit 10 can be made to correspond to the agricultural tire 200 having a different shape of the lug 201. Accordingly, it is possible to realize a low-cost response to different types of agricultural tires 200 according to the field mud quality and region.

  As a material of the mud scraping portion 1, an appropriate material may be used from the viewpoint of durability, strength, etc., but a material having a low friction coefficient and high wear resistance is preferably used. For example, a metal material or a polymer material can be used, but a thermoplastic resin such as PEEK (polyetheretherketone) material has low friction coefficient and high wear resistance, and is lightweight. Therefore, it is preferable. Examples of the metal material include iron, aluminum, and stainless steel.

  The support portion 2 is supported by the main body portion 4 by the rotation shaft 5 in a state in which the support portion 2 is rotatable within a predetermined range in the vicinity of the end portion opposite to the mud scraping portion 1. Thus, the support part 2 is provided in the main-body part 4 of the mud removal unit 10 so that the support part 2 can move to the rotation direction centering on the rotating shaft 5. FIG. A coil spring 3 is provided between the end of the support portion 2 on the mud scraping portion 1 side and the vicinity of the rotating shaft 5 of the main body portion 4. The tension of the coil spring 3 biases the support portion 2 in a direction approaching the main body portion 4, and the mud scraping portion 1 provided at the tip of the support portion 2 is biased toward the surface of the agricultural tire 200. With the above configuration, the mud scraping part 1 that is in contact with the surface of the agricultural tire 200 is biased by the coil spring 3, and the angle of the mud scraping part 1 with respect to the agricultural tire 200 is maintained within a predetermined range. The mud scraping part 1 can be made to follow the curved surface of the agricultural tire 200 surface in which the lug shape is formed.

  As shown in FIG. 3, the mud removal unit 10 is fixed by the frame 6 and the bolt 7, and is located at the mud removal position behind the agricultural tire 200. The frame 6 is formed by connecting and reinforcing a base plate 61 with a loop-shaped reinforcing material 62. A configuration for moving the mud removal unit 10 to the storage position inside the agricultural tire 200 will be described later with reference to FIGS. 8 and 9.

FIG. 4 is a rear perspective view showing a state where the mud removal apparatus of FIG. 1 is attached to an auto hitch (quick hitch) 300. Since the figure is for explaining a configuration for attaching the tire demuding apparatus 100 to an auto hitch (quick hitch) 300, the demuding unit 10 is not shown.
As shown in the figure, an auto hitch (quick hitch) 300 is a member used to mount a plurality of work machines that can be moved up and down by a hydraulic device provided in the tractor body. The dimensions of the auto hitch (quick hitch) 300 are defined as common to tractor manufacturers. For this reason, by attaching the frame 6 to the auto hitch (quick hitch) 300, the attachment structure of the tire mud removal apparatus 100 can be simplified.

  The tire mud removal device 100 includes an upper locking portion 8, a center bracket 9, and a hole 91 (see FIG. 1) as fixing means for fixing to an auto hitch (quick hitch) 300. The upper locking portion 8 is engaged with the shaft 302 that is passed through the upper link 301 that protrudes from the tractor. In the state where the upper locking portion 8 is engaged with the shaft 302 as described above, the two center brackets 9 and 9 that straddle the frame 6 and bolts that pass through the holes 91 and 91 from the front side of the frame 6 ( The tire removing device 100 is fixed to the auto hitch (quick hitch) 300 by fitting with each other.

  In this way, by using the generally used auto hitch (quick hitch) 300 for mounting the frame 6, the structure for mounting the tire removing device 100 can be simplified. However, the means for attaching the mud removal apparatus of the present invention to the tractor is not limited to the above-mentioned fixing means, and a structure in which the upper link 301 and the lower links 303 and 303 are directly attached can also be used.

  FIG. 5 is a plan view showing a state in which the mud removal unit 100 is arranged at the mud removal position behind the agricultural tire 200. As shown in the figure, the support portion 2 of the mud removal unit 10 is divided into five support portions 2A to 2E, and is arranged symmetrically with respect to the center line C in the width direction of the agricultural tire 200. Has been. Similarly, the mud scraping section 1 is divided into five mud scraping sections 1A to 1E and arranged symmetrically with respect to the center line C. Thus, by positioning the support portion 2C at the center of the support portion 2 on the center line C of the agricultural tire 200, the mud scraping portion 1C provided on the support portion 2C causes the vicinity of the center of the agricultural tire 200 in the width direction. Mud can be removed efficiently. In the present embodiment, only the support portion 2C is provided with a plurality of mud scraping portions 1C (see FIG. 1). This corresponds to the fact that it is particularly difficult to remove the mud on the center line C in the width direction when removing the mud from the agricultural tire 200.

  FIG. 6 is a side view showing a state in which the mud removal unit 10 of the tire mud removal apparatus 100 of the present embodiment is disposed at the mud removal position behind the agricultural tire 200. As shown in the figure, a coil spring 3 is locked in the vicinity of the mud scraping portion 1 attachment portion of the support portion 2. The other end of the coil spring 3 is locked to a locking portion 41 in the vicinity of the rotation shaft 5 of the main body portion 4. The coil spring 3 can urge the mud scraper 1 in a direction to press it against the surface of the agricultural tire 200 at a predetermined angle via the support 2.

  The inventor of the present invention has found that it is important to maintain the angle of the mud scraper 1 with respect to the surface of the agricultural tire 200 in removing the mud from the surface of the agricultural tire 200. With the rotation of the agricultural tire 200, the mud scraper 1 moves along the shape of the agricultural tire 200. When the mud scraping part 1 is provided directly on the coil spring 3 as in the past, when the lug 201 is exceeded, the angle of the mud scraping part 1 with respect to the agricultural tire 200 changes greatly, so the mud scraping part 1 The mud removal efficiency will decrease. In view of this, the tire mud removal device 100 is configured such that the support unit 2 including the mud scraping unit 1 is provided on the main body unit 4 of the mud removal unit 10 so as to be rotatable about the rotation shaft 5. With this configuration, the mud scraping unit 1 can be moved only in a predetermined direction, that is, in a rotating direction around the rotating shaft 5 when the mud is removed by rotation of the agricultural tire 200. It becomes possible to suppress the change of the angle with respect to one agricultural tire 200 and maintain it within a predetermined range. Therefore, since the mud scraping part 1 follows the shape of the agricultural tire 200, the mud removal efficiency can be improved as compared with the conventional example. Here, “within a predetermined range” refers to a range in which the mud removal effect of the agricultural tire 200 by the tire mud removal device 100 is good.

  The angle of the mud scraper 1 with respect to the agricultural tire is set in a range where the surface of the mud scraper 1 and the surface of the lug 201 do not contact when the mud scraper 1 climbs and descends the lug 201. . Thereby, the mud removal effect can be made favorable. This point will be described below with reference to FIG.

  FIG. 7 is a side view for explaining the angle of the mud scraper with respect to the agricultural tire. The lug 201 of this embodiment protrudes in a trapezoidal shape from the surface of the agricultural tire 200. The angle formed by the horizontal plane L and the side surface on the upstream side (the side in contact with the mud scraper 1) of the lug 201 of the agricultural tire 200 rotating in the direction indicated by the white arrow in the same figure is R (201-1). And the angle formed by the side surface on the downstream side (the side in contact with the mud scraper 1 and the horizontal surface) and the horizontal plane L is R (201-2). If the angle R formed by the surface of the mud scraping unit 1 and the horizontal plane is set to satisfy R (201-1) <R <R (201-2), the mud scraping unit 1 is used when climbing and descending. The surface contact with the lug 201 can be prevented and a good mud removal effect can be obtained. That is, when riding on the lug 201, the angle R when the tip of the mud scraping unit 1 hits the root of the side surface on the upstream side in the rotation direction of the lug 201 is larger than R (201-1), and the tip of the mud scraping unit 1 If the angle of the mud scraper 1 is set so that the angle R when the lug 201 falls along the side surface on the downstream side in the rotational direction of the lug 201 is smaller than R (201-2), surface contact can be prevented. A good mud removing effect can be obtained.

When the surface of the lug 201 is formed by a curved surface, the angle formed by the straight line connecting the farm tire 200 side end and the top side end of the curved surface and the horizontal plane L is the R (201-1) and the R ( 201-2).
Moreover, when the angle with respect to the horizontal surface L of the side surface of the lug 201 has a width | variety, the largest angle in the range which touches the mud scraping part 1 in the rotation direction upstream is set to R (201-1), and in the rotation direction downstream, The smallest angle in the range in contact with the mud scraping unit 1 is R (201-2).

  As shown in FIG. 8, if the angle formed by the both side surfaces of the lug 201 is 2θ, 2θ = R (201-2) −R (201-1). Here, the corner bisector formed by the both side surfaces of the lug 201 is positioned on the surface of the mud scraping unit 1 when the mud scraping unit 1 gets over the lug 201. When the angle R is set, a good mud removing effect can be achieved by maintaining the angle R of the mud scraping portion 1 within the range of R ± θ. As in the mud removing device 100 of the present embodiment, the support portion 2 is supported on the main body portion 4 by the rotation shaft 5 in a state where the support portion 2 can be rotated within a predetermined range near the end opposite to the mud scraping portion 1. According to the structure to do, it can implement | achieve easily maintaining the angle R of the mud scraping part 1 in the range of R +/- theta.

  In the present embodiment, the angle of the mud scraper 1 with respect to the agricultural tire 200 refers to an angle R formed by a surface obtained by extending the surface of the mud scraper 1 and the horizontal plane L, as shown in FIG. In the figure, angles R (D) and R (E) with respect to the agricultural tire 200 are shown for the surface P (D) of the mud scraping portion 1D and the surface P (E) of the mud scraping portion 1E. In the mud removal unit 10, as described above, the mud scraping portions 1A to 1E are arranged symmetrically with respect to the center line C of the agricultural tire 200. For this reason, in the mud scraping parts 1A to E of the tire demudder 100, the angles R (A) and R (E) are the same, and the angles R (B) and R (D) are the same.

  In the present embodiment, the angle R (C) is initially set to 40 °, the angle R (D) and the angle R (B) are set to 52 °, and the angle R (E) and the angle R (A) are initially set to 45 °. However, this is only an example, and the mud scraper 1 and the lug 201 may be appropriately set to a numerical value corresponding to the shape of the lug 201 so that the lug 201 does not come into surface contact. .

  Moreover, when the mud scraping-off part 1 leaves | separates from the surface of the agricultural tire 200 when getting over the lug 201, it becomes a cause which reduces mud removal efficiency. Therefore, in the mud removal unit 10, in the present embodiment, the scraping portion 1 is divided into five in the width direction of the agricultural tire 200. With this configuration, it is possible to suppress the degree to which the mud scraper 1 is separated from the surface of the agricultural tire 200 when getting over the lug 201.

  In the agricultural tire 200, lugs 201 of a target shape are often arranged alternately with the center line C in the width direction as the center. Conventionally, a configuration in which a mud scraping part is provided separately on the left and right of the agricultural tire 200 has been adopted. On the other hand, in the mud scraping unit 1 of the mud removal unit 10, the mud scraping unit 1 corresponding to the left and right lugs 201 is divided into two parts, and the mud scraping units 1A and B and the mud scraping unit 1D. -It is set to E (refer FIG. 5). Moreover, the mud scraping parts 1A to E are provided on the support parts 2A to E that can be rotated separately. With this configuration, the timing at which the mud scraper 1 rides over the lug 201 on each of the left and right of the center line C of the agricultural tire 200, that is, the timing at which the mud scraper 1 separates from the surface of the agricultural tire 200 can be varied. it can. In this way, in each of the left and right of the center line C, the mud scraping unit 1 separately moves over each lug 201 to suppress the mud scraping unit 1 from separating from the surface of the agricultural tire 200. Can do. As a result, the tracking of the mud scraping portion 1 to the surface of the agricultural tire 200 becomes good, and it is possible to improve the mud removal performance.

  FIG. 8 is a perspective view showing the urging force adjusting means of the mud removal unit 10. As shown in the figure, the mud removal unit 10 includes a bolt 21 and a nut 22 as biasing force adjusting means. Hereinafter, a mechanism for changing the urging force of the mud scraper 1 by changing the tension of the coil spring 3 will be described.

  As shown in FIG. 6, the coil spring 3 is locked to the locking portion 211 on the agricultural tire 200 side of the bolt 21 provided in the vicinity of the end portion on the mud scraping portion 1 side of the support portion 2. As shown in FIG. 7, the bolt 21 passes through the hole of the support portion 2 and is fixed by a nut 22 on the side opposite to the agricultural tire 200, and protrudes from the nut 22 by rotating the nut 22. The length X of the bolt 21 to be changed can be changed. By changing the length X, the position of the locking portion 211 that locks the coil spring 3 on the agricultural tire 200 side can be adjusted, and the tension of the coil spring 3 can be changed.

More specifically, when the length X of the bolt 21 that can be adjusted within a predetermined range is increased, the coil spring 3 is pulled to increase the tension. As a result, the urging force against the mud scraping portion 1 by the coil spring 3 is increased. Conversely, when the length X is reduced, the coil spring 3 is contracted, so that the urging force of the coil spring 3 against the mud scraping portion 1 is reduced.
As described above, the mud removal unit 10 of the present embodiment realizes the urging force adjusting mechanism of the mud scraping unit 1 by a simple mechanism of the bolt 21 and the nut 22. By adjusting the urging force of the mud scraper 1, the mud removal force can be improved according to the type of the agricultural tire 200 and the quality of the mud at the place where it is used.

  In the present embodiment, the coil spring 3 is used as a tension spring and the mud scraper 1 is urged by the attractive force. However, the configuration for urging the mud scraper 1 by the coil spring 3 is limited to this. It is not a thing. For example, a configuration in which the mud scraper 1 is urged by the extension force of the coil spring 3 can be employed. Specifically, as shown by a broken line in FIG. 6, a configuration in which the mud removal unit 10 is extended upward and a coil spring is disposed as a push spring between the extended portion and the support portion may be employed. In this case, for example, the rotation shaft can be arranged at a position indicated by 51 in the figure. In addition, the structure which supports the support parts 2A-E which can be rotated with a compression spring may be sufficient.

A configuration for switching the position of the mud removing unit 10 when the tire mud removing device 100 is used and when not used will be described below with reference to FIGS. 9 to 10.
FIG. 9 is a perspective view of a main part for explaining the storage mechanism of the mud removal unit 10. As shown in the figure, in a state in which the bolt 7 (see FIG. 3) for fixing the mud removal unit 10 to the frame 6 is removed, the mud removal unit 10 has the base plate 61 of the frame 6 around the storing rotation shaft 11. It is configured to be rotatable substantially parallel to the surface. The mud removal unit 10 is rotated with respect to the frame 6 around the storage rotation shaft 11, thereby removing the mud between the mud removal position behind the agricultural tire 200 and the storage position inside the agricultural tire 200. The unit 10 can be easily moved.

  Specifically, the mud scraping unit 1 of the mud removal unit 10 is separated from the surface of the agricultural tire 200 (arrow A in the figure), and the mud removal unit 10 is used as the agricultural tire with the storage rotation shaft 11 as the central axis. It is turned in the direction of the inside 200 and knocked down (arrow B in the figure). Thereby, the mud removal unit 10 can be moved from the mud removal position behind the agricultural tire 200 to the storage position inside the agricultural tire 200.

  In addition, the said movement operation | work can be performed using the releasing jig | tool 20 corresponding to the shape of the mud removal unit 10, as shown in FIG. The release jig 20 moves the mud scraping unit 1 and the lug 201 of the agricultural tire 200 when returning the mud removal unit 10 from the retracted position to the mud removal position (movement opposite to the arrow B in the figure). Also used to prevent interference.

FIG. 10 is a perspective view of relevant parts showing a state in which the mud removal unit 10 is stored at a predetermined position. As shown in the drawing, with the rotation shaft 11 for storage as the central axis, the mud removal unit 10 is rotated inside the agricultural tire 200, and the hole 70 of the base plate 61 is passed through the snap pin. 12 is inserted up to the corresponding hole 72 of the mud removal unit 10. The snap pin 12 is used as a pin for fixing the mud removing unit 10 at the storage position or releasing the storage fixing state. In addition, the hole 70 used when fixing the mud removal unit 10 to the mud removal position behind the agricultural tire can be used as the hole 70.
When returning the mud removal unit 10 from the storage position to the mud removal position, the snap pins 12 may be removed from the holes 70 and 72 and the procedure opposite to the movement to the storage position may be performed.

  A farming machine such as a wheeled tractor is always equipped with a mud removal unit 10 and can be easily arranged at a mud removal position only when necessary. For this reason, for example, the mud removal work can be performed in parallel with the farm work by switching the mud removal unit 10 from the storage position to the mud removal position before the last step of the work site.

  It should be noted that the tire mud removing device 100 is a position where the mud removing unit 10 does not come into contact with the tractor body and the agricultural tire 200 during the lifting / lowering by the hydraulic device even when the mud removing unit 10 is located at either the mud removing position or the storage position. Provided.

  The tire dehumidifying device 100 according to the present embodiment removes the bolt 7 that fixes the mud removing unit 10 to the frame 6 so as to be rotatable about the storing rotation shaft 11 as a central axis, thereby releasing the jig 20. Is used to move the mud removal unit 10 from the mud removal position to the storage position. However, a mechanism for moving and fixing the mud removal unit 10 with respect to the frame 6 may be configured to be performed by automatic control by motor drive.

As described above, the tire mud removal apparatus 100 according to the present embodiment is always equipped with the mud removal unit 10 and can be disposed at the mud removal position only when necessary. For this reason, by using the tire mud removal apparatus 100 of this embodiment, the position of the mud removal unit 10 can be switched as necessary, and the mud removal work can be performed in parallel with the farm work.
According to the mud removal method of the present invention in which the mud removal work is performed in parallel with the farm work, mud can be prevented from clogging between the lugs 201. Therefore, the driving force of the agricultural tire 200 can be maintained and improved by using the mud removal method of the present invention as necessary.

(Second Embodiment)
In this embodiment, the structure provided with the bag latching | locking part for latching a fallen soil collection | recovery bag in the mud removal unit of embodiment mentioned above is demonstrated. The configuration other than this is the same as that described in the above-described embodiment.

  FIG. 11 is a front perspective view showing the tire mud removal apparatus 110 of this embodiment provided with a bag locking portion 111 for locking the falling soil collection bag. As shown in the figure, the bag engaging portion 111 is constituted by a substantially rectangular ring provided inside the mud removal unit 10 and is fixed to the frame 6. The falling soil collection bag 112 set in the bag locking portion 111 falls inside the two agricultural tires 200 by locking and setting to the bag locking portion 111 with the falling soil recovery bag opened upward. Mud can be recovered.

  FIG. 12 is a drawing-substituting photograph showing a mud recovery state by the mud removal apparatus of FIG. 11, and shows a state seen from above the tractor. As shown in the photograph, the mud removed from the surface of the agricultural tire 200 by the mud scraping unit 1 can be collected in the falling soil collection bag 112. For this reason, it can suppress that the removed mud falls, for example on the lower link 303 (refer FIG. 4). In addition, if the fall soil collection | recovery bag 112 uses the bag etc. which are generally used for sandbag production, for example, conveyance of the collected mud will become easy.

  As described above, the tire mud removal apparatus 110 according to the present embodiment removes the mud removed from the surface of the agricultural tire 200 by the falling soil collection bag 112 set in the bag locking portion 111 provided above the lower link 303. Can be recovered. Therefore, it becomes possible to reduce the burden of cleaning the tractor itself after the mud removal work.

  The mud removal apparatus of the present invention is useful as an apparatus that can be provided in order to remove mud adhering to the agricultural tire of a tractor that pulls an agricultural machine or the like.

1A to E Mud scraping part 2A to E Support part 3 Coil spring ( elastic body part )
4 Body 5 Rotating shaft 6 Frame 7 Bolt 8 Upper locking part (fixing means)
9 Center bracket (fixing means)
91 hole (fixing means)
DESCRIPTION OF SYMBOLS 10 Mud removal unit 11 Rotating shaft 12 Snap pins 100, 110 Tire mud removal device 111 Bag locking part 112 Falling soil collection bag 200 Agricultural tire 201 Lug 300 Auto hitch (quick hitch)
301 Upper link 303 Lower link

Claims (8)

Corresponding to a pair of left and right agricultural tires, equipped with two mud removal units,
Each said mud removal unit
A mud scraping part that scrapes off mud adhering to the agricultural tire;
A support portion that rotatably supports the mud scraping portion in a predetermined direction;
E Bei and an elastic body for urging the mud scraper unit in the agricultural tire surface direction,
Each of the mud removal units is fixed by a frame at a mud removal position behind the pair of left and right agricultural tires,
In the frame, the base plate is connected and reinforced by a loop-shaped reinforcing material,
The base plate is provided with a rotating shaft for storage,
Each of the mud removal units is provided so as to be rotatable around the storage rotation shaft,
By rotating the mud removal unit with respect to the frame about the storage rotation shaft, the mud removal position behind the agricultural tire and the storage position inside the agricultural tire can be positioned. A mud removal device characterized by being able to. The mud scraping section is provided in the mud removing unit so as to be pivotable by a pivot shaft, and the angle between the agricultural tire surface and the mud scraping section can be maintained within a predetermined range. The mud removal apparatus according to claim 1. The said mud scraping part is divided | segmented into plurality, and each of the divided said mud scraping part is provided so that rotation is possible separately, The mud removal apparatus of Claim 2 characterized by the above-mentioned. . Removing mud according to claim 1, characterized in that the lower link above the inner of the tractor body inside the agricultural tire, and a bag locking portion for locking the falling soil collection bag. The mud removing apparatus according to claim 1 , wherein a thermoplastic resin is used as the mud scraping section. The mud removal apparatus according to claim 1 , further comprising an urging force adjusting unit that changes an urging force of the elastic body portion . The mud removing device according to any one of claims 1 to 6 , further comprising fixing means for fixing the frame to the auto hitch. A dividing mud method using the removing mud according to any one of claim 1 to 7
In work site, by switching the dividing mud device to the dividing mud position from the storage position, removing mud method characterized by carrying out the removal mud work in parallel with farm work.