JP2007068425A - Transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transplanter where a space for threading a granular fertilizer-spreading hose therethrough is secured in between an apron and a drive case without altering the position of a scraping level control shaft. <P>SOLUTION: The transplanter 3 is equipped with a mechanism 14 for controlling the seedling scraping levels of a planting unit 11 based on the position alteration of the apron 13. In this transplanter 3, the mechanism 14 comprises a turnable scraping level control shaft 15 set along the apron 13 and the drive case 4, a control arm 16 for moving the apron 13 in response to the turning of the scraping level control shaft 15, and a scraping level control lever 17 functioning to make a turning operation of the control shaft 15; wherein the control shaft 15 is partially deviated to provide a space for threading the granular fertilizer-spreading hose 21 therethrough in between the apron 13 and the drive case 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a transplanter such as a riding rice transplanter equipped with a scraping amount adjusting mechanism for adjusting a seedling scraping amount of a planting mechanism based on a position change of an apron.

A transplanter such as a riding rice transplanter includes a seedling platform on which a seedling is placed, an apron arranged along the lower end of the seedling platform, and a seedling scraping opening formed on the apron. A planting mechanism for scraping seedlings from a mounting stand and planting the scraped seedlings in a field, and a drive case arranged along an apron to transmit planting power to the planting mechanism Has been. In addition, since the amount of seedling scraped by the planting mechanism needs to be adjusted according to the type of seedling, etc., the amount of scraping that adjusts the amount of seedling scraped based on the apron position change is usually included in the transplanter. An adjustment mechanism is provided. The scraping amount adjusting mechanism includes, for example, a rotatable scraping amount adjusting shaft disposed along the apron and the drive case, and an adjusting arm that moves the apron according to the rotation of the scraping amount adjusting shaft. And a scraping amount adjusting lever for rotating the scraping amount adjusting shaft.
JP 2005-58073 A

  By the way, in recent years, transplanting machines equipped with a fertilization system are increasing in order to perform side row fertilization simultaneously with seedling planting. For example, a granular fertilizer system that applies lateral fertilizer to granular fertilizer is delivered from a granular fertilizer provided at the rear of the fuselage, a side groove groover that forms fertilizer grooves on the side of the planting mechanism, and a granular fertilizer. And a granular fertilization hose for guiding the granular fertilizer to the side groove grooving device. The granular fertilization hose is preferably piped so as to incline from the granular fertilizer to the side groove grooving unit in order to promote a smooth flow of the fertilizer and prevent clogging of the fertilizer. For example, when the granular fertilization hose is piped so as to pass between the apron and the drive case, the granular fertilization hose is inclined well and the flow of fertilizer becomes smooth. However, in the transplanter equipped with the above-described scraping amount adjusting mechanism, since the scraping amount adjusting shaft is disposed between the apron and the drive case, it is difficult to pass a thick hose for granular fertilization. In order to pass the granular fertilization hose between the apron and the drive case, it is conceivable to change the position of the scraping amount adjusting shaft. Since it is necessary to shift or to change the arm length of the adjustment arm, there is a possibility that the cost will be greatly increased due to a major design change.

The present invention was created for the purpose of solving these problems in view of the above circumstances, and is arranged along a seedling stage on which a seedling is placed and a lower end portion of the seedling stage. An apron to be scraped off, a seedling scraping port formed on the apron to scrape seedlings from a seedling stand, a planting mechanism for planting the scraped seedlings in a field, and a planting power to the planting mechanism In the transplanting machine, comprising: a drive case arranged along the apron for transmitting the power; and a scraping amount adjusting mechanism for adjusting the scraping amount of the planting mechanism based on a change in the position of the apron. The adjustment mechanism includes a rotatable scraping amount adjusting shaft disposed along the apron and the drive case, an adjusting arm that moves the apron in accordance with the rotation of the scraping amount adjusting shaft, and a scraping amount adjusting shaft. When configuring with a scraping amount adjusting operation tool that rotates the scraping amount, Axis partially bias the, characterized in that it has a space for the passage of the granular fertilizer hoses between the apron and drive case. In this way, it is possible to secure a space for passing the granular fertilization hose between the apron and the drive case without changing the overall position of the scraping amount adjusting shaft. No major design changes, such as shifting parts or changing the arm length of the adjustment arm, are required, and as a result, a granular fertilization hose is passed between the apron and the drive case without incurring a significant cost increase. The flow of granular fertilizer in the hose can be made smooth.
Further, the scraping amount adjusting shaft is characterized in that an intermediate portion is deviated with respect to both left and right end portions, and at least one of left and right end portions is supported by a pin inserted from an inner end thereof. In this way, even if the scraping amount adjusting shaft is partially biased, deformation of the scraping amount adjusting shaft is suppressed, so that variation in the scraping amount due to deformation of the scraping amount adjusting shaft is prevented. be able to.

  Next, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling machine body of a riding rice transplanter, and a planting work machine 3 is connected to a rear side of the traveling machine body 1 through a lifting link mechanism 2 so as to be lifted and lowered. As shown in FIGS. 2 to 4, the planting work machine 3 includes a drive case 4 facing left and right, a float support shaft 5 along the lower side, and a pair of left and right seedling stand support stays 6 facing up and down. A frame 7 is configured. On the work machine frame 7 side, a seedling mounting base 8 for mounting a seedling (mat seedling) is supported so as to be slidable in the left-right direction, and a plurality of floats 9 are supported so as to be swingable up and down.

  A planter case 10 extending rearward is provided at both left and right ends of the drive case 4. A pair of left and right planting mechanisms 11 are provided at the rear end of the planter case 10, and planting power is supplied to the planting mechanism 11 from the drive case 4 via the planter case 10. The If the planting mechanism 11 scrapes a seedling from the lower end part of the seedling mounting stand 8, and plantes this scraped seedling in a farm field, there will be no restriction | limiting in a planting system. For example, in this embodiment, the rotary type planting mechanism 11 which performs planting twice by one rotation is employ | adopted.

  As the float 9, one center float 9 a and a pair of left and right side floats 9 b are provided. Both floats 9 are suspended by the float support shaft 5. The float support shaft 5 is configured to change the vertical position of each float 9 by turning according to the operation of the planting depth adjusting lever 12. Based on the vertical position change of the float 9, seedling planting Depth adjusted. Further, the center float 9a has a sensing float function for sensing the height of the planting work machine 3 with respect to the rice field, and automatic raising / lowering control of the planting work machine 3 is performed according to the height detection.

  On the work machine frame 7 side, an apron 13 is supported along the lower end of the seedling table 8. The apron 13 has a seedling scraping port (not shown) corresponding to the planting claw position of each planting mechanism 11, and the seedling is scraped through these seedling cleaning ports. Further, the apron 13 is supported so as to be movable in the vertical direction, and the seedling scraping amount of the planting mechanism 11 is adjusted based on the position change of the apron 13.

  The scraping amount adjusting mechanism 14 that changes the position of the apron 13 includes a scraping amount adjusting shaft 15, an adjusting arm 16, and a scraping amount adjusting lever (scraping amount adjusting operation tool) 17. The scraping amount adjusting shaft 15 is a pipe member disposed along the apron 13 and the drive case 4, and both end portions thereof are rotatably supported by flange members 18 provided at both end portions of the drive case 4. Yes. The adjustment arm 16 protrudes forward from the left and right end portions of the scraping amount adjustment shaft 15, and the tip end portion is engaged with the apron 13. That is, the adjustment arm 16 maintains the vertical position of the apron 13 and moves the apron 13 up and down according to the rotation of the scraping amount adjustment shaft 15. The scraping amount adjusting lever 17 extends forward and upward from one end portion of the scraping amount adjusting shaft 15, and the scraping amount adjusting shaft 15 is rotated according to the front-back operation.

  As shown in FIG. 1, the riding rice transplanter of the present embodiment is equipped with a granular fertilization system that applies granular fertilizer to the side stripes at the same time as seedling planting. This granular fertilizer system is delivered from a granular fertilizer 19 provided at the rear part of the traveling machine body 1, a side grooving device 20 that forms a fertilizer groove on the side of each planting mechanism 11, and the granular fertilizer 19. A granular fertilization hose 21 that guides the granular fertilizer to the lateral groove grooving device 20 is provided.

  The granular fertilization hose 21 is preferably piped so as to incline from the granular fertilizer 19 toward the side groove grooving device 20 in order to promote a smooth flow of the fertilizer and prevent clogging of the fertilizer. For example, when the granular fertilization hose 21 is piped so as to pass between the apron 13 and the drive case 4, the granular fertilization hose 21 is inclined well and the flow of fertilizer becomes smooth. However, in the planting work machine 3 provided with the scraping amount adjusting mechanism 14 described above, the scraping amount adjusting shaft 15 is disposed between the apron 13 and the drive case 4, so that a thick hose for granular fertilization is passed. Is difficult. Further, in order to pass the granular fertilization hose 21 between the apron 13 and the drive case 4, it is conceivable to change the position of the scraping amount adjusting shaft 15. Since it is necessary to shift the rotation support part or to change the arm length of the adjustment arm 16, there has been a risk of a significant cost increase resulting in a major design change.

  In order to solve the above problems, in the planting work machine 3 according to the embodiment of the present invention, the scraping amount adjusting shaft 15 is partially biased so that the granular fertilization is performed between the apron 13 and the drive case 4. A space for passing the hose 21 is formed. In this way, a space for passing the granular fertilization hose 21 between the apron 13 and the drive case 4 can be secured without changing the entire position of the scraping amount adjusting shaft 15, so that the scraping amount adjusting shaft can be secured. No major design changes such as shifting the rotation support position of 15 or changing the arm length of the adjustment arm 16 are required. As a result, the apron 13 and the drive case 4 The granular fertilizer hose 21 can be passed between them to smoothly flow the granular fertilizer in the hose 21.

  More specifically, the scraping amount adjusting shaft 15 includes a pair of left and right end shafts (pipe shafts) 15a and 15b that are not biased, an intermediate shaft 15c that is biased upward with respect to the end shafts 15a and 15b, and an end The shafts 15a and 15b and the plate 15d for integrally connecting the intermediate shaft 15c are provided. The adjusting arm 16 is provided on the left and right end shafts 15a and 15b, and the scraping amount adjusting lever 17 is provided on the one end shaft 15a. However, depending on the connection strength of the shafts 15a to 15c, the adjusting arm 16 is scraped. There is a possibility that the apron 13 is tilted due to the torsional deformation of the amount adjustment shaft 15 and the amount of scraping varies.

  In the present embodiment, in order to solve such a problem, an intermediate support member 22 that supports the inner end portion of the other end shaft 15b is provided. As shown in FIG. 5, the intermediate support member 22 includes a pin 22a inserted into the inner end of the other end shaft 15b, a first support plate 22b that supports the pin 22a, and a first support plate 22b that supports the first support plate 22b. The two support plates 22c are integrally provided. In this way, even if the scraping amount adjusting shaft 15 is partially biased, the deformation of the scraping amount adjusting shaft 15 is suppressed, so that the amount of scraping varies due to the deformation of the scraping amount adjusting shaft 15. Is prevented. Further, in this embodiment, when the intermediate support member 22 is bolted to the drive case 4, the intermediate support member 22 is fastened together with the link mounting bracket 23 of the center float 9 a, so that it can be carried out without providing a dedicated fixing hole.

  According to the present embodiment configured as described, the seedling stage 8 on which the seedling is placed, the apron 13 arranged along the lower end of the seedling stage 8, and the apron 13 are formed. A seedling is scraped from the seedling mount 8 through the seedling scraping port, and the apron 13 is used to transmit the planting power to the planting mechanism 11 and the planting mechanism 11 for planting the scraped seedling in the field. In planting work machine 3 provided with drive case 4 arranged along with, and scraping amount adjustment mechanism 14 which adjusts the amount of seedling scraping of planting mechanism 11 based on the position change of apron 13, scraping amount adjustment The mechanism 14 includes a rotatable scraping amount adjusting shaft 15 disposed along the apron 13 and the drive case 4, and an adjusting arm 16 that moves the apron 13 in accordance with the rotation of the scraping amount adjusting shaft 15. And a scraping amount adjusting lever 17 for rotating the scraping amount adjusting shaft 15. In doing so, the scraping amount adjusting shaft 15 is partially biased to form a space for passing the granular fertilization hose 21 between the apron 13 and the drive case 4. Even if it does not change, it becomes possible to let the granular fertilization hose 21 pass between the apron 13 and the drive case 4. FIG. This eliminates the need for major design changes such as shifting the rotation support portion of the scraping amount adjusting shaft 15 and changing the arm length of the adjusting arm 16, and as a result, does not cause a significant increase in cost. The granular fertilization hose 21 is passed between the apron 13 and the drive case 4 so that the flow of the granular fertilizer in the hose 21 can be made smooth.

  Further, the scraping amount adjusting shaft 15 is deviated from the left and right ends, and at least one of the left and right ends is supported by the pin 22a inserted from the inner end thereof. Even if the adjusting shaft 15 is partially biased, deformation of the scraping amount adjusting shaft 15 is suppressed, and as a result, variation in the scraping amount due to deformation of the scraping amount adjusting shaft 15 can be prevented.

It is a side view of a riding rice transplanter. It is a side view of a planting work machine. It is a principal part front view of a planting work machine. It is a principal part top view of a planting work machine. (A) is a front view which shows an intermediate | middle support member, (B) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Planting work machine 4 Drive case 8 Seedling stand 11 Planting mechanism 13 Apron 14 Scraping amount adjusting mechanism 15 Scraping amount adjusting shaft 16 Adjusting arm 17 Scraping amount adjusting lever 19 Granular fertilizer 20 Side preparation Groove 21 Granular fertilizer hose 22 Intermediate support member 22a Pin

Claims (2)

A seedling mounting table on which the seedling is mounted, an apron arranged along the lower end of the seedling mounting table, and a seedling from the seedling mounting table through a seedling scraping port formed on the apron, A planting mechanism for planting the scraped seedlings in the field, a drive case arranged along the apron to transmit planting power to the planting mechanism, and a seedling of the planting mechanism based on the apron position change In a transplanter equipped with a scraping amount adjusting mechanism for adjusting the scraping amount,
The scraping amount adjusting mechanism includes a rotatable scraping amount adjusting shaft disposed along the apron and the drive case, an adjusting arm for moving the apron in accordance with the rotation of the scraping amount adjusting shaft, and a scraper. In constructing the scraping amount adjusting operation tool for rotating the picking amount adjusting shaft, the scraping amount adjusting shaft is partially biased to provide a space for passing the granular fertilization hose between the apron and the drive case. A transplanter characterized by being formed.   2. The scraping amount adjusting shaft is characterized in that an intermediate portion is deviated with respect to both left and right end portions, and at least one of left and right end portions is supported by a pin inserted from an inner end thereof. The transplanter described.

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