JP2011019511A - Mechanism for suppressing propagation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable to suppress propagation of objects inhibiting growth of farm crops between farm crop rows and/or at roots of the farm crops to which the travelling means of a field travelling apparatus can not directly act. <P>SOLUTION: A mechanism 10 for suppressing propagation is constituted to be installed to a farm field travelling apparatus 1 equipped with a machine body frame 2 formed in a gate type crossing over a planted crop row in a farm field and a pair of crawlers 3 mounted on both sides of the machine body frame 2 to suppress propagation of objects inhibiting growth of farm crops between crop roots and/or the crop roots of the farm crop C. The mechanism is also equipped with support means 32 arranged at inner sides of machine bodies of each of crawlers 3 and stroking means 33 constituted so that the base ends of which are supported by the support means 32 and the top ends of which are extended to positions of roots of farm crop C inner sides of the machine body to stroke the farm field surface between crop roots and/or at the crop roots of the farm crop C. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a breeding suppression mechanism that is installed in a field traveling device that travels in a field such as a paddy field or a field, and that suppresses the propagation of a crop growth inhibition target between strains of the crop row or / and at the same time.

  As a prior art regarding an agricultural field traveling device, an agricultural field traveling device described in Patent Document 1 is exemplified. As shown in FIG. 15, the farm field traveling apparatus 101 includes traveling means 102 that allows the apparatus main body 103 to move within a field including a paddy field and a field where the crop C is grown, and grows on soil in the field. The growth inhibition target including weeds and pests to be pressed is pressed against the soil by the traveling means 102, and the growth inhibition target is excluded to suppress the reproduction.

  The work performed by the field traveling device 101 is fundamentally different from weeding (removing about once every 10 days) to remove the weeds that grow, damage the weeds before germination and growth, and suppress the growth of the weeds. It is a weeding operation, and it is preferable to repeat the operation at intervals shorter than weeding (performed twice a week). In this agricultural field traveling apparatus 101, the growth of weeds where the traveling means 102 has traveled is suppressed.

  In addition, as a conventional technique for weeding weeds grown between and between plants without damaging crops, first, a piano wire spring tine (an rake made of an elastic body) or a similar technique is exemplified. Examples of this type of technique include the technique used in the field action weeding machine of Patent Document 2 and the weeding working machine in the field farming of Patent Document 3. In these technologies, in order to adjust the contact pressure of the tine, various ideas such as the shape, attachment method, position and angle of the tine are devised. A flexible spring tine is used for the tine. Moreover, as an example of application of spring tine to paddy field weeding work, the paddy field weeder of Patent Document 4 and the weeder of Patent Document 5 are exemplified. In addition, as a technique for weeding between strains by means other than these spring tines, a method of weeding so as to scratch or roughen the surface of the field with a hard metal wire brush or a deck brush with a short hair, There exists a weeding machine (refer patent document 6) which weeds with a rotary-type weeding brush.

  Since weeding work by these weeding means is carried out at a frequency of about once every 10 days, it is necessary to remove weeds that have grown during about 10 days in the weeding work. In other words, the conventional weeding means that weeds that have grown to some extent in a single weeding operation even if the spring tine itself has flexibility or uses a brush so as not to damage the crops. Since it is necessary to have a performance sufficient to remove the film, it has a certain degree of hardness.

JP-A-2005-198604 Japanese Patent No. 3280925 Japanese Patent Laid-Open No. 2000-50702 JP 2005-287366 A JP 2006-271340 A JP 59-140803 A

  The field traveling device 101 of Patent Document 1 has a high suppression effect on the place where the traveling unit 102 has traveled, but has a problem that the suppression effect is low between strains and plants where the traveling unit 102 cannot directly act. .

  Therefore, it is also conceivable to combine the field traveling device of Patent Literature 1 with the weeding technology described in Patent Literatures 2 to 6. However, as described above, it is preferable to perform the weeding work by the field traveling device 101 about twice a week. In particular, when the seedling after transplanting in the field is not rooted in the field (about 10 immediately after transplanting the seedling). If you use conventional weeding technology (weeding technology with enough performance to remove weeds that have grown to some extent), the seedlings will be damaged significantly, rooting of the seedlings may be hindered, and the seedlings may leave the field There is a problem that there is sex.

In order to solve the above-mentioned problem, the reproduction suppression mechanism of the first invention is:
The plant frame is equipped with a machine frame formed in a gate shape straddling the crop row planted in the field, and a pair of travel means provided on both sides of the machine frame, and between the strains of the crop row Or / and a breeding suppression mechanism that suppresses the breeding of the crop growth inhibition target at the stock,
A support means attached to the field traveling device;
The base end side is supported by the support means, and the tip end side includes an abrading means configured to abrade the field surface on the side of the traveling means.

  Although it does not specifically limit as said crop growth inhibition object, The weeds and pests which grow on the soil of a field are illustrated. The side of the traveling means refers to the side of the traveling means on the outer side of the body or the side of the traveling means on the side of the body.

  According to this configuration, when the field traveling device travels along the crop row, the tip side of the grinding means wears the surface of the field on the side of the traveling means, so that the field traveling device travels. Propagation of crop growth inhibition target on the field surface where the means does not act directly can be suppressed. In addition, unlike the conventional weeding means that removes weeds that have grown to some extent, the mashing means rubs the surface of the field, so that it is less likely to damage the crop even if it comes into contact with the crop in the crop row.

As a reproduction suppression mechanism of the second invention, in the first invention,
The grinding means has an aspect in which the tip side is extended toward the stock source passing position of the crop line on the side, and the surface of the field between the stocks in the crop line and / or the stock line is worn. Illustrate.

  According to this configuration, since the mashing means rubs between the stocks in the crop row or / and the stock, the growth of the crops between the stocks in the crop row and / or the stock at which the travel means of the field traveling device does not directly act. Propagation of the inhibition target can be suppressed.

As the reproduction inhibiting mechanism of the third invention, in the second invention,
The said support means illustrates the aspect comprised so that the said friction means could be rock | fluctuated back and forth centering on the axis | shaft extended substantially up and down.

  According to this configuration, depending on whether the traveling direction of the field traveling device is moving forward or backward, the friction means swings around the axis, and the tip side of the friction means is Since it extends toward the rear in the traveling direction, it is possible to gently grind between the crops in the row of crops and / or between the plants.

As the reproduction inhibiting mechanism of the fourth invention, in the third invention,
The said support means illustrates the aspect comprised so that adjustment of the inclination of the said axis | shaft with respect to the said body frame was possible.

  According to this configuration, the inclination of the shaft can be adjusted as appropriate according to the state of the field, the crop line, and the like.

As the reproduction inhibiting mechanism of the fifth invention, in the first invention,
The support means is configured to extend laterally;
The friction means exemplifies a mode in which the upper end side as the base end side is supported by the support means so that the lower end side as the distal end side hangs down to the field surface on the side.

  According to this configuration, since the lower end side of the mashing means rubs the field surface on the side, the propagation of the crop growth inhibition target on the field surface where the traveling means of the field traveling device does not directly act is suppressed. Can do.

As a reproduction suppression mechanism of the sixth invention, in the fifth invention,
The support means exemplifies a mode in which a plurality of the friction means are arranged at intervals in the extending direction.

  According to this structure, the field surface in the said side can be abraded over a wide range by the said some abrading means.

As a reproduction suppressing mechanism of the seventh invention, in any one of the first to sixth inventions,
The field traveling device is configured to travel a plurality of crop rows planted in the field back and forth in a switchback manner,
The said support means illustrates the aspect provided so that it might be located in the approximate center of the front-back direction in the said traveling means.

  According to this configuration, since the support means is provided at a substantially front-rear symmetrical position in the traveling means, the farm field with respect to the row length direction of the target crop row (the crop row on which the machine body frame straddles). When the traveling direction of the traveling device is deviated, it is possible to minimize the interference between the machine body of the field traveling device and the crop line regardless of whether the field traveling device is moving forward or backward. it can.

As a reproduction suppressing mechanism of the eighth invention, in any one of the first to seventh inventions,
The said support means illustrates the aspect comprised so that the height position of the said friction means with respect to the said body frame could be adjusted up and down.

  According to this configuration, the height position can be adjusted as appropriate in accordance with the state of the field, the crop line, and the like.

As a reproduction suppression mechanism of the ninth invention, in any one of the first to eighth inventions,
The said support means illustrates the aspect arrange | positioned so that attachment or detachment to the said agricultural field traveling apparatus via a connection means is carried out.

  According to this configuration, for example, it is possible to prepare a breeding suppression mechanism including various types of friction means and replace them appropriately according to the growth stage of the crop. In addition, for example, while confirming the state of a field, a crop line, and the like at the site, the breeding suppression mechanism can be attached or detached, or replaced with a breeding suppression mechanism having a different manner of friction means.

As a reproduction suppressing mechanism of the tenth invention, in any one of the first to ninth inventions,
When the body frame is viewed from the side, the abrading means is supported on the base end side in the approximate center in the front-rear direction of the body frame, and when the field traveling device proceeds forward or backward, An example in which the distal end side is configured not to protrude from the front and rear of the body frame is illustrated.

  According to this configuration, it is possible to prevent an operator from stepping on the friction means by mistake during handling of the field traveling device.

Although it does not specifically limit as said friction means, The following aspect is illustrated. Here, the “flexibility” in the next aspect refers to a degree of flexibility that does not damage the crops even if the farm traveling device is in contact with the crops in the crop row while traveling.
(A) The aspect comprised so that the said field surface might be worn with the 1 or 2 or more rod body, belt body, or string body which has a softness | flexibility.
(B) The aspect comprised so that the said field surface might be worn with the channel brush or brush provided with the bristle which has a softness | flexibility.
(C) A mode in which the field surface is worn by a torsion brush or a channel roll brush (a brush in which a linear channel brush is wound around a shaft, a core, or the like) having a flexible handle.
(D) The aspect comprised so that the said agricultural field surface might be worn with a chain body (for example, a link chain, a roller chain, etc.). Although it does not specifically limit as a material of a chain body, A metal, resin, etc. are illustrated.

  According to the propagation suppressing mechanism according to the present invention, there is an excellent effect that it is possible to suppress the propagation of the crop growth inhibition target between the strains in the crop row where the traveling means of the field traveling device does not act directly and / or at the time of the planting.

1 is a front view of a field traveling device equipped with a breeding suppression mechanism according to a first embodiment embodying the present invention. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is a top view which shows the installation method to the agricultural field traveling apparatus of the same breeding suppression mechanism. It is a perspective view which shows the principal part of the same breeding suppression mechanism. It is a figure which shows the state which equipped the agricultural field traveling apparatus with the reproduction | regeneration suppression mechanism provided with the mashing means by a channel brush, (a) is a front view, (b) is the bb sectional view taken on the line of (a). It is a figure which shows the state which equipped the agricultural field traveling apparatus with the reproduction | regeneration suppression mechanism provided with the friction means by a torsion brush, (a) is a front view, (b) is the bb sectional view taken on the line of (a). It is a top view which shows the example which carries out switchback driving | running | working of the agricultural field apparatus equipped with the same breeding suppression mechanism, (a) is an example at the time of mounting the breeding suppression mechanism in the body inner part in a crawler, (b) is a breeding suppression mechanism. Are respectively shown in the crawler on the inner side and the outer side. It is the photograph which shows the state of the test plot at the time of a residual grass investigation, (a) is an untreated test plot, (b) is a test plot of the testing machine 1, (c) is a test plot of the testing machine 2 Show. It is a graph which shows a residual grass investigation result, (a) shows the result of each test section whole, (b) has shown the result for every place in each test section, respectively. It is a front view of an agricultural field traveling device equipped with a breeding suppression mechanism according to a second embodiment that embodies the present invention. It is the XII-XII sectional view taken on the line of FIG. It is the XIII-XIII sectional view taken on the line of FIG. It is sectional drawing similar to FIG. 13 which shows the example of a change of the reproduction suppression mechanism. It is a front view of the conventional agricultural field traveling apparatus.

  FIGS. 1-10 has shown the reproduction | regeneration suppression mechanism for the agricultural field traveling apparatuses of one Embodiment which actualized this invention, In each figure, the arrow F has pointed the advancing direction of the body.

  As shown in FIGS. 1 to 3, the field traveling device 1 equipped with the reproduction suppression mechanism 10 of the present example includes a body frame 2 formed in a gate shape straddling a row of crops planted in the field, and the body. A pair of crawlers 3 provided on both sides of the frame 2 as a traveling means, a pair of drive units 4 for supplying driving force to each of the crawlers 3, and a pair of states for detecting the front and rear states of the machine body, respectively. A sensor 5 as detection means, a drive control unit 6 that controls both drive units 4 based on a state detected by the sensor 5, and a battery 7 that supplies power to the drive unit 4 and the drive control unit 6 are provided. A plurality of crop rows planted in the field are configured to travel back and forth in a switchback manner.

  The crawler 3 as a traveling means includes a plurality of driven wheels 14 and 15 arranged in a row at a lower end portion of the support frame 12, a drive wheel 16 disposed above the plurality of driven wheels 14 and 15, and the plurality of driven wheels 14 and 15. Driven wheels 14 and 15, and a crawler belt 17 wound around the drive wheel 16. The crawler belt 17 includes a protrusion row 18 arranged along the entire inner circumference. The drive wheel 16 disposed above the plurality of driven wheels 14 and 15 is configured to form the highest vertex on the orbit of the crawler belt 17. Further, the driven wheels 14 and 15 and the drive wheel 16 are arranged so that the orbit of the crawler belt 17 is symmetrical in the front-rear direction in the side view of the airframe. It is configured to make it. In the agricultural field traveling device 1 of this example, the crawler 3 is adopted as the traveling means, but is not particularly limited as long as the machine body can be moved in the agricultural field. For example, it is installed at both ends of the apparatus main body. It is also possible to use a tire.

  The breeding suppression mechanism 10 of this example suppresses the breeding of the crop growth inhibition target between the strains in the crop row and / or at the border, and is connected to the inside of the body of each crawler 3 as shown in FIGS. The support means 32 disposed via the means 31 and the base end side are supported by the support means 32, and the tip end side is extended to the stock row passing position of the crop row on the inner side of the machine body, And / or a grinding means 33 configured to wear the surface of the field at the planting. As shown in FIG. 1, since the connection means 31 and the support means 32 are arrange | positioned in the interior space of the crawler belt 17, they do not contact the crop C (the crawler belt 17 contacts first).

  As shown in FIG. 4, the connecting means 31 of this example includes a pair of locking portions 34 and 35 that are respectively locked to the tip ends of the shafts 20 of the pair of driven wheels 15 and 15 of the crawler. A connecting rod 37 attached to the stop portion 35 and a snap lock 38 for connecting the connecting rod 37 and the other locking portion 34 in a connectable and separable manner are provided. The locking portions 34 and 35 are provided with locking holes 34a and 35a into which the tip of the shaft 20 can be inserted. The tip of the shaft 20 has an annular shape that engages with the locking holes 34a and 35a. A convex portion 20a is provided. The other locking portion 34 may be fixed to the tip of the shaft 20 in advance. In order to connect the connecting means 31 to the crawler 3, the locking holes 34 a and 35 a of the both locking portions 34 and 35 are engaged with the convex portions 20 a at the tip of the shaft 20, respectively, The stop portions 34 and 35 are connected while being urged so as to approach each other. To remove the connecting means 31 from the crawler 3, the reverse is performed.

  As shown in FIG. 5, the support means 32 of the present example can be attached to an arbitrary position in the longitudinal direction of the connecting rod 37 while being arbitrarily inclined in the circumferential direction of the connecting rod 37. And a support portion 41 attached to the attachment portion 40 so that the vertical position can be adjusted. In this example, the attachment portion 40 is attached to the connecting rod 37 so that the friction means 33 is positioned at the approximate center of the crawler 3 in the front-rear direction. A shaft 43 extending substantially vertically is provided at the upper end portion of the abrading means 33, and the support portion 41 is configured to support the shaft 43 so as to be slidable in the axial direction and rotatable in the circumferential direction. ing. The range of rotation of the shaft 43 is limited to a range in which the tip of the friction means 33 reaches the plant stock passing position of the crop line at the inner side of the machine body by a rotation restriction means (not shown) (two points in FIG. 4). (See arrows shown with chain lines). At the upper end of the shaft 43, an annular convex portion 44 is provided to prevent the shaft 43 from coming out downward from the support portion 41. Further, as a method of attaching the attachment portion 40 to the connecting rod 37, the attachment portion 40 may be attached with a degree of freedom of rotation in the axial circumferential direction of the connecting rod 37.

As the friction means 33 in this example, the following three types (A) to (C) are prepared.
(A) The aspect comprised so that the agricultural field surface might be worn with the three rods 45 which have a softness | flexibility (refer FIGS. 1-5). In this example, the three rod bodies 45 are connected on the lower side of the shaft 43. The rod body 45 is exemplified by a material made of a soft resin such as nylon or polypropylene and having a diameter of about 1 to 3 mm. However, the rod body 45 is not limited to this, and the material, diameter, and length are appropriately changed. May be. Instead of the rod body 45, a belt body or a string body may be employed.
(B) The aspect comprised so that the field surface might be worn with the channel brush (or brush) provided with the hair | bristle which has a softness | flexibility (refer FIG. 6). An example of the material of the brush hair is soft resin.
(C) The aspect (refer FIG. 7) comprised so that the field surface might be worn with the torsion brush (or channel roll brush) provided with the pattern which has a softness | flexibility. Examples of the material of the brush handle include soft resin.

  1 to 7, the propagation suppression mechanism 10 is provided on the inner side of the crawler 3 on the inside of the crawler 3. However, the present invention is not limited to this. Two or more may be arranged.

  Next, a method for causing the field traveling device 1 equipped with the breeding suppression mechanism 10 of this example to travel in a paddy field will be described. First, the field traveling device 1 is installed in a field scene so that the machine body frame 2 formed in a gate shape straddles the crop line planted in the field, and is started toward the line length direction of the crop line. Then, the drive control unit 6 detects the front and rear states of the airframe via the sensor 5 and controls the drive unit 4 based on the detected state, so that the crop row is in the left-right direction of the airframe frame 2. Run the aircraft so that it passes through the center. Then, when the aircraft reaches the end of the crop row, the drive control unit 6 moves the aircraft to the adjacent crop row by the switchback method. By repeating this, the agricultural field traveling device 1 travels forward and backward through a plurality of crop rows planted in the agricultural field in a switchback manner.

  FIG. 8A shows an example in which the field traveling device 1 equipped with the breeding suppression mechanism 10 on the inner side of the crawler 3 switches back, and FIG. 8B shows the breeding suppression mechanism 10 on the inner side and outer side of the crawler 3. The example which switches back the agricultural field traveling apparatus 1 equipped with is shown. Unlike the example of FIG. 8A, when the propagation suppression mechanism is installed on the inside and outside of the body as in the example shown in FIG. The breeding suppression mechanism 10 can be worn on both sides, and the travel distance and working time of the breeding suppression mechanism 10 can be shortened.

  Next, a description will be given of a test carried out regarding the reproduction suppression effect of the reproduction suppression mechanism 10 of this example.

In the test, paddy soil mixed with weed seeds collected in the field in 2008 was packed to a width of 60 cm, a length of about 3 m and a height of about 10 cm, submerged, and added with a water heater / thermostat (25 ° C setting). This was done by the warming method. The test conditions are as follows.
・ Venue: Nakatsugawa City, Gifu Prefecture ・ Soil mixing (Oyster): March 13, 2009 ・ Transplanting rice: March 13, 2009, transplanting pot seedlings (15 cm between plants, 2 plants / strain)
-Traveling period: March 16, 2009 to March 25, 2009-Reproduction suppression method: The field traveling device 1 equipped with a reproduction suppression mechanism was reciprocated at a frequency of three times a week.
Test zone / zone system: Test machine 1 (configuration shown in FIG. 6 and equipped with the friction means 33 of the mode (B)), test machine 2 (configuration shown in FIG. 7 and mode (C) ), Untreated, 2 ward system, and residual weed survey: March 25, 2009 (after waterfall, 0.09 square meter in the untreated zone and 0.18 square meter in the traveling zone) (Samples were taken from two locations, and the number and dry weight were investigated. In the traveling zone, the crawler trace and the crawler trace were surveyed separately. Fig. 9 shows the state of each test plot during the residual grass survey.)
-Rice stock survey: About 13 stocks except for 4 stocks at both ends, it was examined whether two stocks remained healthy one by one.

The test results were as follows. FIG. 10 is a graph showing the results of the residual grass survey (in the figure, the range of the maximum value and the minimum value of the data is indicated by an I-shaped bar for each bar graph).
(1) Since weed seeds were sprayed and the water was heated, the amount of weeds generated was remarkably large.
(2) As shown in FIG. 10 (a), the number of weeds in the section where the test machine was run was suppressed to about 20% compared to the untreated section.
(3) As shown in FIG. 10 (b), the propagation suppression effect of the testing machine 1 is higher than that of the testing machine 2, and is somewhat inferior to the crawler trace, and is considered effective.
(4) No impact on rice stocks was observed in all the districts.

  According to the reproduction suppression mechanism 10 of the present example configured as described above, when the field traveling device 1 travels along the crop line, the friction means 33 is arranged between the strains of the crop line across the body frame 2 or Since the cultivars are cultivated, the breeding of the crop growth inhibition target can be suppressed between the cultivars in which the crawler 3 of the field traveling device 1 does not act directly or / and at the cultivars. In addition, unlike the conventional weeding means for removing weeds that have grown to some extent, the wheat straw means 33 is used to grind the field surface between the strains in the crop row or / and the border of the crops. Will not be damaged.

  Moreover, the agricultural field traveling device 1 is configured to travel forward and backward through a plurality of crop rows planted in the agricultural field in a switchback manner, and the support means 32 is positioned at the approximate center of the crawler 3 in the longitudinal direction. Since the support means 32 is provided in a substantially front-rear symmetrical position in the crawler 3, the support means 32 is provided with respect to the row length direction of the target crop row (the crop row on which the machine body frame 2 straddles). When the traveling direction of the field traveling device 1 is deviated, the interference between the machine body of the field traveling device 1 and the crop row is minimized regardless of whether the field traveling device 1 is moving forward or backward. Can be suppressed.

  Further, the support means 32 is configured to support the friction means 33 so as to be swingable back and forth around a shaft 43 extending substantially vertically, so that the traveling direction of the farm field traveling device 1 is moving forward. Depending on whether there is a reverse movement or not, the friction means 33 swings around the shaft 43 and the leading end side of the friction means 33 extends rearward in the traveling direction. And you can gently grind stocks.

  Further, the support means 32 is configured to be attachable with the attachment portion 40 being arbitrarily inclined in the circumferential direction of the connecting rod 37, so that the inclination of the shaft 43 relative to the body frame 2 can be adjusted. This can be adjusted as appropriate according to the state of the field or crop line.

  Further, the support means 32 is configured such that the height position of the friction means 33 relative to the body frame 2 can be adjusted up and down by attaching the support part 41 to the attachment part 40 so that the vertical position can be adjusted. This can be adjusted as appropriate according to the state of the field or crop line.

  In addition, since the support means 32 is detachably disposed on the field traveling device 1 via the connection means 31, for example, the breeding suppression mechanism 10 including various modes of the friction means 33 is prepared. They can be exchanged as appropriate according to the growth stage of the crop C. In addition, for example, while confirming the state of a farm field, a row of crops, and the like on the site, the breeding suppression mechanism 10 can be attached or detached, or replaced with a breeding suppression mechanism 10 having a different manner of friction means 33.

  Next, FIGS. 11 to 14 show a second embodiment in which the present invention is embodied. This breeding suppression mechanism 10 (10A, 10B) is mainly different from the first embodiment in the following points. Accordingly, portions common to the embodiment are given the same reference numerals, and redundant description is omitted.

  The farm field traveling device 1 equipped with the propagation suppression mechanisms 10A and 10B of this example is mainly different from the first embodiment in the following two points. First, the sensor 5 as a pair of detection means for detecting the front and rear states of the airframe is incorporated in the drive control unit 6. Second, in the crawler 3, the driven wheel 15 disposed above the driven wheel 14 is disposed only on one side of each projection row 18, as with the driven wheel 14. In this example, the crawler 3 is provided with a pair of protrusion rows 18 on the inner peripheral surface, and the driven wheels 15 are respectively arranged outside the pair of protrusion rows 18. As a result, like the driven wheel 14, the driven wheel 15 is also prevented from being trapped or trapped with mud, dirt or foreign matter.

  The breeding suppression mechanisms 10A and 10B of this example include a support means 32 attached to the field travel device 1 via a connection means 31, a base end side supported by the support means 32, and a tip end side crawler 3 as a travel means. And a sanding means 33 configured to sand the field surface on the side of the paddle. Specifically, the breeding suppression mechanism 10A is arranged such that support means extending inward of the crawler 3 is spanned between the pair of crawlers 3, and a plurality of (in this example) the support means 32 are provided. Five (5) grinding means 33 are arranged at intervals in the extending direction. Both end portions of the support means 32 of the breeding suppression mechanism 10A are detachably attached to the support frame 12 via connection means 31, respectively. Further, in the breeding suppression mechanism 10B, support means 32 extending outward of the crawler 3 is disposed on the outer side of the crawler 3, and the support means 32 includes a plurality of (three in this example) friction means 33. Are arranged at intervals in the extending direction. The base end portion of the support means 32 of the breeding suppression mechanism 10 </ b> B is detachably attached to the case of the battery 7.

  The connection means 31 has a long hole 31a extending in the vertical direction, and a support means 32 is attached so that the vertical position in the long hole 31a can be adjusted.

  The support means 32 is disposed so as to be positioned at the approximate center of the crawler 3 in the front-rear direction.

  The upper end side as the base end side is supported by the support means 32 so that the lower end side as the distal end side hangs down to the field surface on the side of the crawler 3. When the body frame 2 is viewed from the side, the abrading means 33 has an upper end supported substantially at the center of the body frame 2 in the front-rear direction, and even when the field traveling device 1 travels forward or backward, The lower end side is configured not to protrude from the front and rear of the body frame 2. The friction means 33 of this example is formed of a string 33a (for example, a wire) having a strong waist from the support means 32 to the vicinity of the field surface for weight reduction, and a chain 33b is formed at the tip of the string 33a. It is connected. Instead of the string body 33a, an elastic rod body may be adopted, or the string body 33a or the rod body may be omitted, and the entire abrading means 33 may be constituted by the chain 33b. Further, as the friction means 33 of this example is arranged closer to the crawler 3, the length of the portion (chain 33b in this example) that hangs down in the field is shortened. This is because during the switchback running of the farm field traveling device 1, this hanging part (particularly, the one of the friction means 33 arranged close to the crawler 3) is between the outer periphery of the crawler belt 17 and the surface of the farm field, This is to make it difficult to bite between the inner circumference of the crawler belt 17 and the driven wheel 14. Examples of the chain 33b include the use of a link chain shown in FIGS. 11 to 13 (specifically, a stainless steel having a wire diameter of 5 to 6 mm) and a roller chain shown in FIG. Although it does not specifically limit as a link chain, The thing made from stainless steel with a wire diameter of 5-6 mm is illustrated. Note that the agricultural field traveling device 1 of this example operates without the crawler 3 being locked even if a portion of the crawler belt 17 that hangs down on the agricultural field is caught between the inner circumference of the crawler belt 17 and the driven wheel 14. The crawler belt 17 is adjusted so as to have a play so that it can continue.

  When the field traveling device 1 equipped with the breeding suppression mechanisms 10A and 10B of this example is traveled in a paddy field, it is performed by switching back as in FIG. 8B in the first embodiment. In addition, when mounting only the reproduction | regeneration suppression mechanism 10A in the agricultural field traveling apparatus 1, it is made to switch back similarly to Fig.8 (a) in 1st embodiment.

  According to the propagation suppression mechanisms 10A and 10B of this example, the support means 32 is configured to extend to the side of the crawler 3, and the friction means 33 has a lower end side of the field surface on the side of the crawler 3. Since the upper end side is supported by the support means 32 so as to hang down, the lower end side of the grinding means 33 abrades the field surface on the side of the crawler 3, so that the field traveling device is the same as in the first embodiment. Propagation of the crop growth inhibition target on the field surface where one crawler 3 does not directly act can be suppressed.

Further, since a plurality of friction means 33 are arranged on the support means 32 at intervals in the extending direction, the plurality of friction means 33 extends over the field surface on the side of the crawler 3 over a wide range. You can wear it.

  Further, when the body frame 2 is viewed from the side, the upper end side as the base end side of the friction means 33 is supported at the approximate center of the body frame 2 in the front-rear direction, and the field traveling device 1 is either forward or reverse. Since the lower end side as the front end side is configured not to protrude from the front and rear of the machine body frame 2 even when proceeding to, the operator erroneously steps on the abrading means 33 during handling of the field traveling device 1. Can be prevented.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) The present invention is implemented by being installed in a field traveling device 1 that travels in other fields (for example, fields, orchards, etc.) other than paddy fields.
(2) The structure for mounting the breeding suppression mechanism 10 to the field traveling device 1 is appropriately changed.
(3) In the second embodiment, each ring constituting the link chain as the chain 33b is appropriately changed in wire diameter, length, width, shape, etc. according to the position in the length direction of the link chain.
(4) In the second embodiment, instead of the chain 33b, a channel brush or brush having one or more flexible rods, belts, or strings, or having flexible hair Adopt or use a torsion brush or a channel roll brush with a flexible handle.

DESCRIPTION OF SYMBOLS 1 Field traveling apparatus 2 Machine frame 3 Crawler 4 Drive part 5 Sensor 6 Drive control part 7 Battery 10 Breeding suppression mechanism 12 Support frame 14 Drive wheel 15 Drive wheel 16 Drive wheel 17 Crawler belt 18 Projection row 20 Shaft 20a Protrusion part 31 Connection means 31a Long hole 32 Support means 33 Wear means 33a String body 33b Chain 34 Locking portion 34a Locking hole 35 Locking portion 35a Locking hole 37 Connecting rod 38 Snap lock 40 Mounting portion 41 Supporting portion 43 Shaft 44 Protruding portion 45 Rod Body C Crops F Direction of Aircraft

Claims (14)

The plant frame is equipped with a machine frame formed in a gate shape straddling the crop row planted in the field, and a pair of travel means provided on both sides of the machine frame, and between the strains of the crop row Or / and a breeding suppression mechanism that suppresses the breeding of the crop growth inhibition target at the stock,
A support means attached to the field traveling device;
A breeding suppression mechanism comprising: a base end side supported by the support means; and a tip end side configured to wear the surface of the field on the side of the traveling means.   The said sanding means is constructed so that the tip side extends toward the stock source passing position of the crop row on the side, and sands the field surface between the stocks in the crop row or / and at the side of the stock row. The reproduction suppression mechanism according to 1.   The reproduction suppressing mechanism according to claim 2, wherein the supporting means is configured to support the friction means so as to be swingable back and forth around an axis extending substantially vertically.   The reproduction suppressing mechanism according to claim 3, wherein the support means is configured to be capable of adjusting an inclination of the shaft with respect to the body frame. The support means is configured to extend laterally;
2. The breeding suppression mechanism according to claim 1, wherein the upper end side as the base end side is supported by the support means so that the lower end side as the distal end side hangs down to the field surface on the side.   The reproduction suppressing mechanism according to claim 5, wherein a plurality of said friction means are arranged in the supporting means at intervals in the extending direction. The field traveling device is configured to travel a plurality of crop rows planted in the field back and forth in a switchback manner,
The breeding suppression mechanism according to any one of claims 1 to 6, wherein the support means is provided so as to be positioned substantially at the center in the front-rear direction of the traveling means.   The breeding suppression mechanism according to any one of claims 1 to 7, wherein the support means is configured to be capable of vertically adjusting the height position of the friction means relative to the body frame.   The breeding suppression mechanism according to any one of claims 1 to 8, wherein the support means is detachably disposed on the field traveling device via a connection means.   When the body frame is viewed from the side, the abrading means is supported by the base end side at a substantially center in the front-rear direction of the body frame, and the field traveling device moves forward or backward. The breeding suppression mechanism according to any one of claims 1 to 9, wherein a distal end side is configured not to protrude from the front and rear of the body frame.   The breeding according to any one of claims 1 to 10, wherein the abrading means is configured to abrad the field surface with one or more flexible rods, belts, or strings. Suppression mechanism.   The propagation control mechanism according to any one of claims 1 to 10, wherein the abrading means is configured to abraze the surface of the field with a channel brush or a brush provided with flexible hairs.   The propagation control mechanism according to any one of claims 1 to 10, wherein the abrading means is configured to abraze the field surface with a torsion brush or a channel roll brush having a flexible handle.   The propagation control mechanism according to any one of claims 1 to 10, wherein the friction means is configured to wear the surface of the field with a chain.