JP2007089486A - Groove-cutting machine for riding rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a groove-cutting machine cutting a groove in a soil face of a paddy field by lowering a groove-cutting body by a linking structure, and driving a riding rice transplanter to enable the groove-cutting body to travel in the paddy field by being pulled, carrying out the escaping operation of the groove-cutting body from a groove-cutting position to an upper escaping position by an escaping structure after the groove-cutting operation for conveying the groove-cutting body from the paddy field to a farm road or a levee by the riding rice transplanter, to prevent the groove-cutting body from colliding with a slope face or the like even if the riding rice transplanter is tilted by the difference in level between the paddy field and the farm road or the levee by the escaping action from the groove-cutting position to the upper escaping position by the escaping structure. <P>SOLUTION: The groove-cutting machine is obtained by connecting a holding frame body 3 to a rear position of the riding rice transplanter 1 with a connecting structure 2 so as to be freely movable in the upper and lower direction, installing the groove-cutting body 4 capable of cutting the groove in the soil face M of the paddy field in the holding frame body, and further installing the escaping structure 5 for moving the groove-cutting body from the groove-cutting operation position to the upper escaping position so as to escape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a grooving machine for a riding rice transplanter that is used, for example, when cutting a drainage groove for smooth entry and drainage in a paddy field.

Conventionally, as this kind of grooving machine for riding rice transplanters, a holding frame body is connected to a rear position of the riding rice transplanter by a connecting mechanism so as to be movable up and down, and a groove cutting body capable of grooving the paddy soil surface to the holding frame body. The thing of the structure formed by providing is known.
JP-A-4-210501

  However, in the case of these conventional structures, when the grooving operation is started, when the grooving machine for riding rice transplanter enters the paddy field from the farm road or the avenue, or when the grooving work is completed, the grooving machine for riding rice transplanter is removed from the paddy field. When carrying out to a farm road or azure road, if the level difference between the paddy field and the farm road or the azure road is large, the riding rice transplanter may tilt significantly and the grooved body may collide with the slope, etc. There is a disadvantage that it may be.

  The present invention aims to solve these disadvantages. Among the present inventions, the invention according to claim 1 connects the holding frame body to the rear position of the riding rice transplanter so as to be movable up and down by a connecting mechanism. The holding frame body is provided with a groove cutting body capable of grooving on the paddy soil surface, and a retraction mechanism for retracting the groove cutting body from the grooving operation position to the upper retraction position is provided. It is in the grooving machine for riding rice transplanters.

  According to a second aspect of the present invention, as the retracting mechanism, a support frame is attached to the holding frame, an attachment member is provided on the holding frame, a fulcrum horizontal axis is provided on the attachment member, and the fulcrum horizontal axis is swiveled. A member is provided so as to be pivotable up and down, a fixing mechanism capable of fixing the swiveling member at a groove cutting work position and an upper retracted position is provided, and a groove cutting body is provided on the swivel member, According to a third aspect of the present invention, the support frame is provided on the holding frame so as to be horizontally swingable about a fulcrum shaft, and grooved bodies are arranged in parallel at both left and right positions of the support frame. In addition, the invention according to claim 4 is characterized in that the grooved body is provided so as to freely swing by a swing mechanism.

  As described above, according to the first aspect of the present invention, in the paddy field, when the groove cutting body is lowered by the connecting mechanism and the riding rice transplanter is driven, the groove cutting body is pulled and driven in the paddy field. Then, the grooving body cuts the groove on the paddy soil surface, and after the grooving operation is completed, as shown in FIG. 9, the grooving body is retracted from the grooving work position to the upper evacuation position by the retraction mechanism. Therefore, the rice paddy can be transported from the paddy field to the farm road or the avenue by the riding rice transplanter. Even if the riding rice transplanter tilts due to the level difference, it is possible to prevent the grooved body from colliding with the slope, etc. When getting into the paddy field, the evacuation mechanism By retracting the body from the grooving work position to the upper evacuation position, even if the paddy rice transplanter tilts due to the level difference between the paddy field and the agricultural road or the maze road, the grooving body is prevented from colliding with the slope. It is possible to improve the work-in / out workability.

  According to a second aspect of the present invention, as the retraction mechanism, a support frame is attached to the holding frame, an attachment member is provided on the holding frame, a fulcrum horizontal axis is provided on the attachment member, and a fulcrum horizontal axis is provided. The swivel member is provided so that it can be swung up and down, and the swivel member is provided with a fixing mechanism capable of fixing the swivel member at the grooving work position and the upper retracted position. In the invention according to claim 3, the support frame is provided on the holding frame so as to be horizontally swingable about a fulcrum shaft, and both left and right positions of the support frame are provided. Since the grooved bodies are arranged in parallel to each other, the groove cutting operation can be satisfactorily performed by the movement of the grooved bodies. In the invention according to claim 4, the grooved body is provided with a swing mechanism. Because of this, it is possible to perform the grooving operation better by the free movement of the grooving body. That

  1 to 10 show an embodiment of the present invention. Reference numeral 1 denotes a riding rice transplanter. The riding rice transplanter 1 includes a body 1a and wheels 1b and is connected to a rear position of the riding rice transplanter 1. The rice transplanter mechanism (not shown) attached by the mechanism 2 is removed, and the holding frame body 3 is connected by the connecting mechanism 2 instead of the rice transplanter mechanism.

  This connecting mechanism 2 is composed of a pair of left and right upper links 2a and 2a pivoted at the base end, a pair of left and right lower links 2b and 2b, and a cylinder mechanism 2c, and includes an upper link 2a and 2a and a lower link 2b and 2b. A holding link 3a as a part of the holding frame 3 is pivotally attached to the tip, and the holding link 3a is provided so as to be swingable up and down by the cylinder mechanism 2c.

  Reference numeral 4 denotes a groove cutting body and a retraction mechanism. In this case, the groove cutting body 4 is formed in a flat tapered shape with a substantially V-shaped cross section, and has a shape that cuts a substantially V-shaped groove F in the paddy soil surface M. The cylindrical portion 3b is formed on the holding link 3a, the fulcrum shaft 3c is rotatably supported on the cylindrical portion 3b, and the bottom ends of the pair of lower links 2b and 2b are alternately arranged on the front end portion of the fulcrum shaft 3c. Attached bolts 3d and 3d are attached, and a square pipe-like support frame 6 is attached to the tip of the fulcrum shaft 3c with attachment pieces 3e and bolts 3f, and telescopic cylinders 3g and 3g are attached to both the left and right sides of the support frame 6. It is inserted and fixed so as to be able to project and retract, and an attachment member 7 is attached to the outer end surface of the telescopic cylinders 3g and 3g, and positioning pins 8a and 8a as a fixing mechanism 8 are attached to the attachment member 7 by bearing plates 8b and 8b and springs 8c and 8c. It is provided so that it can be projected and retracted through the projecting holes 8d and 8d, and on the telescopic tubes 3g and 3g The positioning plate 8f is provided with a locking groove 8g formed in the positioning plate 8f, the six insertion holes 9a are formed in the swiveling members 9 and 9, and three end portions of the six insertion holes 9a are respectively provided. One of the two insertion holes 9a is selected and inserted, and the turning members 9 and 9 are provided to the attachment member 7 by a fulcrum horizontal shaft 10 so that the turning members 9 and 9 can turn 180 degrees up and down, and the fixing mechanism 8 Positioning pins 8a and 8a are inserted into the opposing insertion holes 9a so that the swiveling members 9 and 9 can be positioned and fixed freely in the up-and-down turning position, and the positioning pins 8a are locked to the locking grooves 8g on the positioning plate 8f. As a result, the positioning pin 8a is held in the retracted position against the spring 8c, and the cylindrical portions 10a and 10a as the swing mechanism 10 are suspended from the pivoting members 9 and 9, and the mounting shafts are attached to the cylindrical portions 10a and 10a. Rotate 10b and 10b horizontally The guide grooves 10c and 10c in the range of about 120 degrees are formed in the cylindrical portions 10a and 10a, and the pins 10d and 10d that can be fitted in the guide grooves 10c and 10c are projected from the mounting shafts 10b and 10b. The groove cutting body 4 is mounted on the mounting shafts 10b and 10b.

  Accordingly, the positioning pins 8d and 8d as the fixing mechanism 8 of the retracting mechanism 5 are removed from the insertion holes 9a and 9a, and the turning members 9 and 9 are turned up and down around the fulcrum horizontal shaft 10 and fixed at the turning position. By inserting the positioning pins 8d and 8d of the mechanism 8 into the insertion holes 9a and 9a, the groove cutting body 4 can be fixed at the groove cutting work position A or the upper retracted position B which is located below.

  Further, the groove cut body 4 is arranged in parallel at both the left and right positions, and can be horizontally swung horizontally around the fulcrum shaft 3c. Further, the groove cut body 4 can be swung horizontally by the swing mechanism 10. .

  Since this embodiment is configured as described above, as shown in FIG. 8, when the groove cutting body 4 is moved down by the connecting mechanism 2 in the paddy field and the riding rice transplanter 1 is run, the groove cutting body 4 The grooving body 4 cuts the groove F in the paddy soil surface M, and after the grooving operation is completed, the grooving body 4 is moved to the grooving work position A by the retraction mechanism 5 as shown in FIG. From the paddy field to the farm road or the hot road G by the riding rice transplanter 1.

  Therefore, even if the riding rice transplanter is tilted by the step between the paddy field and the farm road or the gaze road G by retracting the groove cutting body 4 from the groove cutting work position A to the upper retraction position B by the retraction mechanism 5, the groove It is possible to prevent the cut body from colliding with the slope K, etc., and when starting the grooving operation, when the grooving machine for the riding rice transplanter is put into the paddy field from the agricultural road or the azure road, the retraction mechanism 5 cuts the groove. By retracting the body 4 from the grooving work position A to the upper evacuation position B, even if the riding rice transplanter tilts due to a step between the paddy field and the farm road or the ridge road, the grooving body collides with the slope or the like. Can be suppressed, and carrying-in / out workability can be improved.

  In this case, as the retraction mechanism 5, the support frame 6 is attached to the holding frame 3, the attachment member 7 is provided on the holding frame 3, the fulcrum horizontal shaft 10 is provided on the attachment member 7, and the fulcrum horizontal shaft 10 is provided. The swivel member 9 is provided so as to be able to swivel up and down, the fixing member 8 capable of fixing the swivel member 9 at the groove cutting work position A and the upper retreat position B is provided, and the groove member 4 is provided on the swivel member 9. The grooved body 4 can be retracted reliably. In this case, the support frame 6 is provided on the holding frame 3 so as to be horizontally swingable about the fulcrum shaft 3c. Since the groove cutting bodies 4 and 4 are arranged in parallel on both the left and right positions of the groove cutting operation, the groove cutting operation can be performed satisfactorily by the movement of the groove cutting bodies 4 and 4. In this case, Since the swing mechanism 11 is provided so as to freely swing in the horizontal direction, the groove cutting operation is further improved by the free movement of the groove cutting bodies 4 and 4. It is possible.

  The present invention is not limited to the above-described embodiment. For example, the structure of the retracting mechanism 5 and the fixing mechanism 8, the number of grooves 4 disposed, the structure of the riding rice transplanter 1 and the like are appropriately changed and designed. It is what is done.

  As described above, the intended purpose can be sufficiently achieved.

1 is an overall side view of an embodiment of the present invention. 1 is an overall plan view of an embodiment of the present invention. 1 is an overall rear view of an embodiment of the present invention. It is a fragmentary sectional side view of the example of an embodiment of the invention. It is a partial plane sectional view of the example of an embodiment of the invention. It is a fragmentary top view of the example of an embodiment of the invention. It is a fragmentary sectional side view of the example of an embodiment of the invention. It is a use state figure of the example of an embodiment of the invention. It is a use state figure of the example of an embodiment of the invention. It is a fragmentary perspective view of the example of an embodiment of the invention.

Explanation of symbols

M Water surface Soil surface F Groove A Groove work position B Upper retreat position 1 Riding rice transplanter 2 Connection mechanism 3 Holding frame body 3c Support shaft 4 Groove body 5 Retraction mechanism 6 Support frame body 7 Mounting member 8 Fixing mechanism 9 Turning member 10 Horizontal axis of fulcrum 11 Swing mechanism

Claims (4)

  The holding frame body is connected to the rear position of the riding rice transplanter by a connecting mechanism so as to be movable up and down, and the holding frame body is provided with a groove cutting body capable of grooving the paddy soil surface. A grooving machine for riding rice transplanters, comprising a retracting mechanism for retracting from a position to an upward retracted position.   As the retraction mechanism, a support frame is attached to the holding frame, an attachment member is provided on the holding frame, a fulcrum horizontal axis is provided on the attachment member, and a turning member is provided on the fulcrum horizontal axis so as to be rotatable up and down. 2. The grooving machine for a riding rice transplanter according to claim 1, wherein a fixing mechanism capable of fixing the member at a grooving operation position and an upward retracted position is provided, and the turning member is provided with a grooving body.   3. The support frame body is provided with the support frame body so as to be horizontally swingable about a fulcrum shaft, and grooved bodies are arranged in parallel at both left and right positions of the support frame body. Riding machine for riding rice transplanters as described. The grooving machine for a riding rice transplanter according to any one of claims 1 to 3, wherein the grooving body is provided so as to freely swing horizontally by a swing mechanism.

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