JP2006006240A - Weeder used for rice paddy - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent damages to hurt transplanted seedlings due to weeding works, in a weeder used for a rice paddy for weeding weeds growing around the transplanted seedlings in the rice paddy. <P>SOLUTION: This weeder is provided by mounting an inter stock-weeding mechanism 4 for weeding between stocks Y of the transplanted seedlings P on a traveling machine body 1. The inter stock-weeding mechanism 4 is equipped with non-driven rotor blades 42 formed by installing plate blades radially on a rotary shaft 41 having an inclination leaving from the upper part to the lower part of the transplanted seedlings P and self rotating by a contact resistance with the ground at the inter stocks Y. The inter stock-weeding mechanism 4 is mounted on the traveling machine body 1 through an invading amount-regulating mechanism 7 for regulating the amount of invasion of the rotor blades 42 into the inter stocks Y. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention belongs to a technical field related to a weeder for paddy fields that weeds the weeds that grew around the seedlings planted in the paddy fields.

  Recently, weeding in paddy fields has been carried out by attaching a front weeding (extrusion) or rear wearing (towing) a weeding mechanism between plants that weeds planted seedlings and a weeding mechanism that weeds between planted seedlings on the traveling aircraft. By combining two different types of weeding forms, weeds that have grown over the seedlings have been uniformly weeded.

Conventionally, as a paddy weeder equipped with an inter-strain weeding mechanism and a streak weeding mechanism, for example, those described below are known.
In Japanese Patent Laid-Open No. 2002-204603, the inter-plant weeding mechanism has a blade that is radially provided on a rotating shaft that is inclined downward from above the planted seedlings, and rotates by ground resistance between the strains. A non-driving squirrel-cage rotor which is arranged as a non-driving rotor blade on the front side in the traveling direction of the traveling machine body, and the inter-row weeding mechanism is arranged in a substantially horizontal direction with a rotation shaft arranged in the horizontal direction and rotates by ground resistance. As a paddy field weeding machine arranged on the rear side in the traveling direction of the traveling machine body is described.

  The paddy field weeding machine according to Patent Document 1 uses the inter-plant weeding mechanism and the streak weeding mechanism as a non-driven type so that the planted seedlings are not damaged and damaged unnecessarily, and the inter-weeding mechanism scrapes from the strains. Weeds are weeded by weeds and weeds that grow between the strips by being embedded in mud by the interstitial weeding mechanism.

  In the paddy field weeding machine according to Patent Document 1, the attachment position of the rotor blade of the inter-plant weeding mechanism is fixed, and the amount of penetration of the rotor blade into the stock can be adjusted in accordance with the cultivar of seedlings, the growth situation, etc. Therefore, there is a problem in that the rotating rotor blade may come into contact with the stems of the planted seedlings to damage and damage the planted seedlings. Also, when the traveling aircraft is a small non-passenger one, when turning the direction of travel at the edge of the rice field, the planting wheel of the traveling aircraft is used as a fulcrum to lift the interplant weeding mechanism and the streak weeding mechanism to avoid planting seedlings However, the rotor of the interstitial weeding mechanism located at the rear side of the traveling direction of the traveling aircraft and hooking the leaf tips etc. of the planted seedlings damaged and damaged the planted seedlings. There is a problem that it sometimes happens.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a paddy field weeding machine that can prevent damage to planted seedlings caused by weeding work.

  In order to solve the above-described problems, the paddy field weeding machine according to the present invention employs the means described in the claims.

  That is, in claim 1, the inter-plant weeding mechanism for weeding the planted seedlings between the plants is mounted on the traveling body, and the inter-strain weeding mechanism is attached to the rotary shaft having an inclination that is spaced downward from above the planted seedlings. In a paddy weeding machine equipped with a non-driven rotor blade that rotates radially by ground resistance between strains, the inter-plant weeding mechanism is controlled by an intrusion amount adjusting mechanism that adjusts the amount of penetration of the rotor blade into the stock. It is mounted on a traveling machine body.

  In this means, the amount of penetration of the rotor blades of the inter-plant weeding mechanism between the strains is adjusted by the invasion amount adjusting mechanism in accordance with the varieties and growth conditions of the planted seedlings, etc. Is prevented from touching.

  Further, according to claim 2, in the paddy field weeder according to claim 1, the intrusion amount adjusting mechanism is a swivel arm in which adjacent rotor blades of the inter-plant weeding mechanism are respectively attached to end portions and are rotated and adjusted in a substantially horizontal plane. It is characterized by having.

  In this means, the amount of penetration of adjacent rotor blades of the inter- stock weeding mechanism between the stocks is adjusted to the same amount at the same time by the rotation of the turning arm of the intrusion amount adjusting mechanism.

  According to a third aspect of the present invention, in the paddy field weeder of the second aspect, a plurality of swivel arms of the intrusion amount adjusting mechanism are arranged in the adjacent direction and are connected by link arms arranged in the adjacent direction. And

  In this means, the amount of penetration of the multiple rotor blades in the adjacent direction of the inter- stock weeding mechanism between the stocks is adjusted to the same amount at the same time.

  Further, according to claim 4, the traveling body is equipped with an inter-plant weeding mechanism for weeding between planted seedlings and an inter-row weeding mechanism for weeding between planted seedlings. The paddy field is arranged on the front side or the rear side in the traveling direction of the traveling machine body as a non-driving type, and the streak weeding mechanism is arranged on the rear side in the traveling direction of the traveling body body as a non-driven type that rotates by ground resistance between the strips. In the weeding machine, the inter-strain weeding mechanism and the streak weeding mechanism are supported by the traveling machine body so that the supporting angle can be changed along the traveling direction.

  In this means, the inter-plant weeding mechanism and the streak weeding mechanism are lifted with the traveling wheel of the traveling body as a fulcrum, and the support angle of the inter-strain weeding mechanism and the streak weeding mechanism to the traveling machine body is changed, so that the traveling machine body progresses. It is possible to avoid the streak weeding mechanism located on the rear side in the direction and located at the bottom of the lifting from catching the leaf tip of the planted seedling.

  Further, according to claim 5, in the paddy field weeder according to claim 4, the inter-plant weeding mechanism and the streak weeding mechanism are attached to the main frame having a rear part extending from the front part of the traveling machine body through the traveling wheel and having a handle as a handle. The main frame is provided with an angle operating mechanism for operating a support angle of the inter-strain weeding mechanism and the streak weeding mechanism.

  In this means, the support angle of the inter-plant weeding mechanism and the streak weeding mechanism is operated by an angle operating mechanism attached to a main frame in which a part of the traveling machine body becomes a handle.

  The paddy field weeding machine according to the present invention of claim 1 is rotated by adjusting the amount of intrusion between the rotor blades of the inter-plant weeding mechanism in accordance with the planting seedling varieties, growth conditions, etc. by the mounting position adjusting mechanism. Since the contact of the rotor blade with the stem of the planted seedling is prevented, there is an effect of preventing damage to the planted seedling due to the weeding work. Further, as claimed in claim 2, since the amount of intrusion between adjacent rotor blades of the inter- stock weeding mechanism is adjusted to the same amount simultaneously by the rotation of the swivel arm of the intrusion amount adjusting mechanism, the operation of adjusting the intrusion amount is easy. , Has the effect of becoming accurate. Further, as claimed in claim 3, since the amount of penetration of the multiple rotor blades in the adjacent direction of the inter- stock weeding mechanism between the stocks is adjusted to the same amount at the same time, there is an effect that the operation of adjusting the intrusion amount becomes easier.

  Furthermore, the paddy field weeding machine according to the present invention of claim 4 has the stock weeding mechanism and the streak weeding mechanism lifted with the traveling wheel of the traveling body as a fulcrum, and the stock weeding mechanism and the streak weeding mechanism are connected to the traveling body. By changing the support angle, it is possible to avoid the interstitial weeding mechanism located at the bottom of the lifting position located on the rear side of the traveling direction of the traveling aircraft body from catching the leaf tips etc. It has the effect of preventing damage to planted seedlings due to weeding. Further, as claimed in claim 5, since the support angle of the inter-plant weeding mechanism and the streak weeding mechanism is operated by the angle operating mechanism attached to the main frame where a part of the traveling machine body is a handle, There is an effect that the support angle can be easily changed by lifting the mechanism.

  Hereinafter, the best mode for carrying out the paddy weeder according to the present invention will be described with reference to the drawings.

  FIGS. 1-6 shows the 1st example of the best form for implementing the weeder for paddy fields based on this invention.

  In the first example, as shown in FIG. 1 and FIG. 2, a non-passenger self-propelled drive type is used as the traveling machine body 1.

  The traveling machine body 1 is provided with two main frames 13 that sandwich the traveling wheel 12 from the front to the rear of one traveling wheel 12 that is rotationally driven by the engine 11. The main frame 13 is constituted by a handle 14 having a portion extending to the rear part bent upward and widened to the left and right.

  At the front part of the main frame 13 of the traveling machine body 1, the inter-weeding mechanism 4, the inter-row weeding mechanism 5, and the float 6 are mounted by the variable angle structure 2 and the support frame 3.

  The variable angle structure 2 includes a pin 21 penetrating the front end of the main frame 13 of the traveling machine body 1 and a U-shaped pin seat fixed to the support frame 3 by rotatably supporting the pin 21. 22.

  The support frame 3 is a square pipe disposed in the width direction of the traveling machine body 1 (in a direction perpendicular to the strips of the planted seedlings P) with the pin receiving seat 22 of the variable angle structure 2 fixed to the center of the arrangement. Consists of.

  The inter-plant weeding mechanism 4 is for weeding the inter-plant Y of the planted seedling P, and is not driven to rotate by the ground resistance on the rotary shaft 41 having a slope that is spaced downward from above the planted seedling P. A rotor blade 42 of the type is rotatably supported. In the rotor blade 42, a substantially rectangular plate blade 422 is radially provided on a sleeve 421 fixed to the rotating shaft 41, and a substantially triangular blade 423 is formed at the tip of the plate blade 422.

  Two inter-weeding mechanisms 4 are arranged so as to confront one line of the planted seedlings P from both sides, and a total of eight are supported by the support frame 3 via the intrusion amount adjusting mechanism 7. The mounting position of the inter-plant weeding mechanism 4 is set in front of the traveling direction of the traveling machine body 1 relative to the mounting position of the inter-row weeding mechanism 5. The intrusion amount adjusting mechanism 7 selects the U-shaped swivel arm 71 that supports the rotating shafts 41 adjacent to the inter-weed weeding mechanism 4 at the lower end (two in total) and the central part of the swivel arm 71. It consists of a mounting bolt 72 that is fixed at a mounting angle.

  The inter-row weeding mechanism 5 weeds the inter-row X of the planted seedling P, and is composed of a non-drive-type squirrel-cage rotor in which a rotation shaft is disposed in a substantially horizontal direction and rotates by ground resistance between the strips.

  One of the inter-row weeding mechanisms 5 is arranged for one of the planted seedlings P (inter-row X), and a total of five are supported by the support frame 3 via the attachment stays 8. The mounting position of the inter-row weeding mechanism 5 is set behind the traveling position of the traveling machine body 1 relative to the mounting position of the inter-plant weeding mechanism 4.

  The float 6 is in contact with mud and prevents the interstitial weeding mechanism 4 and the streak weeding mechanism 5 from settling, and is formed in a ski plate shape.

  Two floats 6 are supported by the support frame 3 via attachment stays 9. The mounting position of the float 6 is set to be substantially the same as the mounting position of the inter-plant weeding mechanism 4.

  An angle operating mechanism 10 is connected to the support frame 3 and is attached along the main frame 13 of the traveling machine body 1. The angle operation mechanism 10 is connected to the link bar 101a and the link pin 101b of the link bar 101a supported by the main frame 13 of the traveling machine body 1 as the support frame 3 and the handle 14, and the end of the link unit 101. And an operation lever 102 attached to the handle 14.

  According to the 1st example, the weeding work substantially the same as the paddy field weeding machine concerning the above-mentioned patent documents 1 will be performed. However, since the scraper 423 of the rotor blade 42 of the inter-plant weeding mechanism 4 weeds so as to scrape the weed of the inter-plant Y together with the mud, weeding is more reliably performed than the paddy field weeder according to Patent Document 1 described above.

  In the weeding work according to the first example, it is possible to change the attachment angle by turning the turning arm 71 by loosening the attachment bolt 72 of the intrusion amount adjusting mechanism 7, so that it corresponds to the cultivar of seedlings P, the growing condition, etc. Thus, the amount of penetration of the rotor blades 42 of the inter-plant weeding mechanism 4 into the inter-plant Y (interval a of the rotor blades 42) can be adjusted (see FIGS. 3 and 4). As a result, in the weeding operation, the rotating rotor blade 42 of the inter-plant weeding mechanism 4 does not come into contact with the stem or the like of the planted seedling P, and the planted seedling P is not damaged or damaged.

  In the adjustment of the intrusion amount of the rotor blade 42 of the inter-plant weeding mechanism 4 into the inter-plant Y, at least two adjacent rotor blades 42 invade so as to confront one row of the planted seedling P of the inter-weed weeding mechanism 4 Since the same amount is simultaneously adjusted by the swivel arm 71 of the amount adjusting mechanism 7, the operation for adjusting the intrusion amount can be performed easily and accurately.

  Furthermore, in the weeding work according to the first example, as in the paddy field weeding machine according to Patent Document 1 described above, the inter-plant weeding mechanism 4 with the traveling wheel 12 of the traveling machine body 1 as a fulcrum when turning the traveling direction at the end of the rice field. , The streak weeding mechanism 5 and the float 6 are lifted to avoid planting seedlings P (see FIG. 5). At this time, as shown in FIG. 6, by operating the operation lever 102 of the angle operation mechanism 10, the rotation between the pins 21 of the angle variable structure 2 is performed and the inter-plant weeding mechanism 4, the inter-row weeding mechanism 5, and so on. The support angle of the float 6 and the support frame 3 can be changed along the traveling direction of the traveling machine body 1. As a result, the streak weeding mechanism 5 located at the rear side in the traveling direction of the traveling machine body 1 is further lifted, and the rotor of the streak weeding mechanism 5 is The planted seedling P is not damaged and damaged by hooking a leaf tip or the like.

  In avoiding the planting seedlings P of the interstitial weeding mechanism 5, the angle operating mechanism 10 is attached to the handle 14 for lifting the interstitial weeding mechanism 4, the interstitial weeding mechanism 5, and the float 6 with the traveling wheel 12 of the traveling body 1 as a fulcrum. Since the operation lever 102 is attached, the operation is not troublesome without a large movement of the operator's hand.

  7 and 8 show a second example of the best mode for carrying out the paddy field weeding machine according to the present invention.

  In the second example, the link arm 20 disposed in the adjacent direction is connected to the turning arm 71 of the intrusion amount adjusting mechanism 7.

  According to the second example, when adjusting the amount of penetration of the rotor blade 42 of the inter-plant weeding mechanism 4 into the inter-plant Y, all the rotor blades 42 of the eight of the inter-plant weeding mechanism 4 are simultaneously transmitted via the link arm 20. , Because the amount is adjusted to the same amount, the intrusion amount can be adjusted more easily and accurately.

  As described above, in addition to the illustrated examples, the rotor blade 42 of the inter-strain weeding mechanism 4 adjacent to the swivel arm 71 of the intrusion amount adjusting mechanism 7 that is arranged against the adjacent strip of the planting seedling P is supported. It is also possible.

It is a top view of the 1st example of the best form for implementing the weeder for paddy fields concerning the present invention. It is a side view of FIG. It is a front view of the principal part expansion of FIG. FIG. 4 is another operation diagram of FIG. 3. It is another operation | movement figure of FIG. The operation is related to FIG. It is a top view of the principal part of the 2nd example of the best form for implementing the weeder for paddy fields concerning the present invention. FIG. 8 is another operation diagram of FIG. 7.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 12 Running wheel 13 Main frame 14 Handle 2 Angle variable structure 3 Support frame 4 Inter-weed weeding mechanism 41 Rotating shaft 42 Rotor blade 5 Inter-row weeding mechanism 7 Intrusion amount adjusting mechanism 71 Turning arm 10 Angle operating mechanism 20 Link arm P Planting Seedlings X Article Y Y Stock

Claims (5)

  An inter-strain weeding mechanism for weeding between planted seedlings is attached to the traveling aircraft, and the inter-strain weeding mechanism has a blade that is radially arranged on a rotating shaft that is spaced downward from above the planted seedling. In a paddy weeder equipped with a non-driven rotor blade that rotates by ground resistance, the inter-plant weeding mechanism is mounted on the traveling machine body via an intrusion amount adjusting mechanism that adjusts the intrusion amount of the rotor blade into the stock. A weeding machine for paddy fields.   The paddy field weeding machine according to claim 1, wherein the intrusion amount adjusting mechanism includes a swivel arm in which adjacent rotor blades of the inter-plant weeding mechanism are respectively attached to end portions and are rotated and adjusted in a substantially horizontal plane. Paddy field weeding machine.   3. The paddy weeder according to claim 2, wherein a plurality of swivel arms of the intrusion amount adjusting mechanism are arranged in the adjacent direction and connected by link arms arranged in the adjacent direction.   The traveling machine is equipped with an inter-plant weeding mechanism for weeding between planted seedlings and a streak weeding mechanism for weeding between planted seedlings. In the weeding machine for paddy fields, which is arranged on the rear side in the traveling direction of the traveling machine body as a non-driven type that rotates by the grounding resistance between the streaks The paddy field weeding machine is characterized in that the mechanism and the streak weeding mechanism are supported by the traveling machine body so that the support angle can be changed along the traveling direction.   5. The paddy field weeding machine according to claim 4, wherein the inter-plant weeding mechanism and the streak weeding mechanism are mounted on a main frame extending from the front part of the traveling machine body to the rear part via a running wheel and having a rear part as a handle. Weeding machine for paddy field, characterized in that an angle operating mechanism for controlling the support angle of the mechanism and the streak weeding mechanism is attached.

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