JP2005295891A - Seedling guide apparatus in transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the assembling workability of both the first seedling guide and the second seedling guide, in a transplanter having the first seedling guide which is disposed below a notched mat seedling-picking-off port disposed in the seedling-receiving portion of an apron for receiving mat seedlings loaded on a seedling tray and contacts with the front portions of the seedlings picked off with a planting tine to prevent the picked-off seedlings from forward falling, and the second seedling guide for stopping the scattering of the picked-off seedlings. <P>SOLUTION: The front upper end portion 15e of the second seedling guide 15 is obliquely upward extended from the lower end portion of the sliding rail portion 13a of the apron 13, and a fitting portion F is disposed in the front upper end portion 15e. The base end portion 14a of the first seedling guide 14 can threadedly be attached to the fitting portion F in an elastically held state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention comprises an apron comprising a slide rail portion and a seedling receiving portion that supports a seedling stage so as to be capable of reciprocating left and right, and a seedling scraped off by a planting claw from a mat seedling scraping opening provided on the apron. The present invention relates to a seedling guide device in a transplanting machine such as a rice transplanter provided with a seedling guide for guiding the plant in the planting direction.

In a conventional transplanter such as a rice transplanter, a slide rail (apron) that slidably receives a lower end portion of a seedling mount is provided, and a seedling extraction port through which a planting claw passes is formed on the slide rail. In addition, a seedling outlet guide is attached along the edge of the seedling outlet, and left and right seedling guides are provided on the lower side of the seedling outlet to prevent the seedlings from spreading along the movement trajectory of the planting nails. A structure in which a base end portion of a guide plate made of a stainless material along the rear edge of the left and right seedling guides is sandwiched and supported between the seedling outlet guide and the slide rail is known (for example, , See Patent Document 1).
JP-A-6-339315 (page 2-3, FIG. 2 to FIG. 7)

  However, when the base end portion of the above-described guide plate made of stainless steel is actually sandwiched and supported between the seedling outlet guide and the slide rail, the guide is folded back into a generally U shape in side view. The base end portion of the plate is sandwiched between the inner back side surface of the vertical plate-shaped opening forming portion formed in a U shape in plan view along the edge of the seedling outlet guide and one side surface of the frame portion of the slide rail. In this state, the seedling outlet guide and the left and right seedling guide mounting parts must be fastened together and fixed to the vertical surface for receiving seedlings of the slide rail, and the assembly workability is extremely poor. For the purpose of positioning and holding, the projection formed on the inner back side of the opening forming part of the seedling outlet guide and the engaging hole provided in the guide plate are fitted, but this is not sufficient. Further, the position of the guide plate could not be adjusted alone.

  The present invention was devised for the purpose of solving the above-mentioned problems, and is a scraping opening in an apron provided with a sliding rail part and a seedling receiving part that support the lower end part of the seedling stage so as to be capable of reciprocating left and right. A first seedling guide that comes into contact with the front part of the seedling scraped off by the planting nail from the scraping mouth and prevents the scraped seedling from falling forward, and the seedling scraped off by the planting nail In the transplanter provided with the second seedling guide for suppressing diffusion, a fitting part is provided in front of the apron attaching part in the second seedling guide, and the base part of the first seedling guide is provided in the fitting part. The first feature is that it is screwed in a state of being held.

  The second feature is that the front upper end portion of the second seedling guide extends upward from the lower end portion of the sliding rail portion of the apron and a fitting portion is provided at the front upper end portion.

  According to invention of Claim 1, when attaching a 1st seedling guide to a 2nd seedling guide, the fitting part which provided the base end part of the 1st seedling guide ahead of the attaching part to the apron of the 2nd seedling guide The first seedling guide can be easily positioned with respect to the second seedling guide by simply holding it in the next position, and can then be screwed in a state where the base end portion of the first seedling guide is held by the fitting portion. Therefore, at that time, the deviation of the first seedling guide with respect to the second seedling guide is suppressed, no extra adjustment is required, and the both seedling guides can be attached to and detached from the apron in an assembled state. The workability is greatly improved, and the management of the parts constituting the both seedling guides can be further simplified. In addition, even after the second seedling guide is attached to the apron, the first seedling guide can be attached and detached alone, and the first seedling guide is relative to the planting trajectory drawn by the planting claws caused by assembly errors. The positional deviation can be adjusted by the first seedling guide alone after being attached to the second seedling guide.

  According to the invention of claim 2, the front upper end of the second seedling guide extends upward from the lower end of the sliding rail portion of the apron, and the fitting portion is provided at the front upper end. Can attach the base end portion of the first seedling guide away from the planting locus drawn by the planting claw, so that the root of the seedling scraped off by the planting claw on the mounting unit (fitting unit) It becomes difficult for soil and soil to adhere, and mud dropping also improves, so that the planting posture of seedlings is less likely to occur.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, a planting part 3 is connected to a rear part of a riding type rice transplanter 1 as a transplanter via a link mechanism 2 so as to be movable up and down. The planting part 3 is provided with a plurality of planting transmission cases 4 side by side with a predetermined interval in the left-right direction of the airframe via a shaft case (not shown), and above the planting transmission case 4. A seedling stand 5 in a forward tilt posture that reciprocates left and right is attached.

  Further, on one side or both sides of the rear portion of the planting transmission case 4, a rotary case 6 that is rotated by planting power transmitted from the body side of the riding type rice transplanter 1 and a pair of planter arms 7 provided at both ends thereof. And a float 9 that can swing up and down is provided below the planting transmission case 4.

  The rotary case 6 is provided with a gear train (not shown) so that the planting claw 10 provided at the tip of the planter arm 7 draws a predetermined planting locus. After the nail 10 scrapes off the seedling from the lower end of the seedling stage 5, it reaches the planting position in the soil while drawing an arc that swells forward, and then rises linearly in a semimoon-like stationary locus A (FIG. 2). The tip movement locus of the planting claw 10 at the time of traveling stop shown in FIG. Thereby, planting is performed twice each time the rotary case 6 rotates once.

  Further, as shown in FIGS. 2 and 3, a substantially L-shaped support member 11 is integrally attached to the back surface of the lower end portion of the seedling mount 5 that reciprocates left and right, and attached to the support member 11. A plurality of resin-made slide pieces 12 having a substantially concave cross section facing downward are screwed together, and a slide rail portion 13a having a substantially square pipe-like cross section fitted to the concave portion of the slide piece 12, An apron 13 having a seedling receiving portion 13b integrally extending rearward from the slide rail portion 13a is disposed in the left and right direction (width direction) of the machine body, and supports the seedling mounting table 5 so as to be capable of reciprocating left and right. Yes.

  The mat seedling placed on the seedling mount 5 is received by the seedling receiving portion 13b, and a mat seed scraping opening 13c corresponding to the planting claw 10 is provided in a notch shape in the seedling receiving portion 13b. The planting claw 10 can scrape a predetermined amount of mat seedling while passing from the top to the bottom of the scraping port 13c along the stationary locus A described above. Further, the apron 13 is configured to be movable in the vertical direction in the tilting direction of the seedling mount 5, and the relative positional relationship between the seedling receiving portion 13 b and the stationary locus A of the planting claw 10 is changed to The amount of mat seedling scraped off by the claw 10, that is, the number of seedlings to be planted can be adjusted.

  Further, below the scraping opening 13 c of the apron 13, the first seedling guide 14 for suppressing the forward fall of the seedling scraped by the planting nail 10 from the scraping opening 13 c and the planting nail 10 were scraped off. A second seedling guide 15 that suppresses the diffusion of seedlings, and more specifically, the first seedling guide 14 is formed of a wire-like stainless steel and the seedling scraped by the planting claws 10 The scraping seedling is prevented from falling forward while abutting the front part and bending and deforming along the stationary locus A of the planting claw 10. On the other hand, the resin-made second seedling guide 15 has left and right side walls 15a and 15b for suppressing the diffusion of the seedling scraped off by the planting claws 10, and the seedlings 14 and 15 support the seedling in an appropriate posture. Planting is to be executed.

  Further, the upper part of the second seedling guide 15 is formed in a gate shape so that the upper part of the second seedling guide 15 can be positioned in a state of being fitted into the scraping port 13c of the apron 13, and the left and right side walls 15a and 15b are integrally extended downward. Has been established. The second seedling guide 15 can be screwed from the lower side of the seedling receiving portion 13b of the apron 13 on the upper rear side of the second seedling guide 15 formed in a gate shape. The left and right attachment portions 15c and 15d having a substantially L-shaped flange are integrally formed.

  Further, the front upper end portion 15e of the second seedling guide 15 formed in a gate shape as described above extends obliquely upward from the lower end portion of the sliding rail portion 13a of the apron 13, and the front upper end portion 15e The fitting part F for elastically mounting the base end part 14a of the seedling guide 14 is provided. More specifically, the base end portion 14a of the wire-shaped first seedling guide 14 is bent into a ring shape, and the base end of the first seedling guide 14 with respect to the fitting portion F provided in the second seedling guide 15 The fitting dimension between the two parts 14a and 14F is set so that the part 14a can be gripped using the elasticity of the resin constituting the second seedling guide 15, and the base end part 14a of the first seedling guide 14 is It is configured so that it can be screwed through a bolt 16 and a nut 17 in a state of being elastically held by the fitting portion F of the two seedling guide 15.

  That is, by holding the base end portion 14a of the first seedling guide 14 against the fitting portion F provided on the second seedling guide 15, a wire-like shape with respect to the second seedling guide 15 having the left and right side walls 15a and 15b. The positioning of the first seedling guide 14 is facilitated, the displacement of the first seedling guide with respect to the second seedling guide when the bolt 16 and the nut 17 are subsequently screwed in is suppressed, and the planting caused by an assembly error or the like is suppressed. The shift of the relative positional relationship of the first seedling guide 14 with respect to the planting locus A drawn by the attached nail 10 is adjusted in the direction of arrow E in the figure by the first seedling guide 14 alone after being attached to the second seedling guide 15. It is also possible. Furthermore, when the first seedling guide 14 is a wire-shaped guide as in the present embodiment, it acts in a state of penetrating into the center of the tip of the planting claw 10 that is notched in a bifurcated shape. Since the first seedling guide 14 can be easily aligned with the center of the tip of the planting claw 10, it is extremely effective.

  And as above-mentioned, since the base end part 14a of the 1st seedling guide 14 can be screwed in the state which elastically held in the fitting part F provided in the 2nd seedling guide 15, assembly workability | operativity is large. To improve. In addition, as shown in FIG. 4, both the seedling guides 14 and 15 can be attached to and detached from the apron 13 in an assembled state. In this case, both seedling guides 14 and 15 need to be positioned and attached individually. Therefore, the working time can be shortened, and the process management of the parts constituting the both seedling guides 14 and 15 can be further simplified.

  Further, as described above, the front upper end portion 15e of the second seedling guide 15 extends obliquely upward from the lower end portion of the sliding rail portion 13a of the apron 13, and the first seedling guide 14 is provided on the front upper end portion 15e. The fitting portion F for holding the base end portion 14a is provided. In more detail, the fitting portion F is formed on the upper portion of the scraping port 13c of the apron 13 as shown in FIGS. Since it is provided above the front extension line C (corresponding to the upper inner surface of the second seedling guide 15 formed in a gate shape), the proximal end portion 14a of the first seedling guide 14 is drawn by the planting claw 10 Since it can be attached at a distance from the planting locus A, and the attachment part (fitting part F) extends in front of the front upper end of the second seedling guide 15 and does not protrude downward, The roots and soil of the seedlings scraped by the planting claws 10 are the extension part. Hardly adhere to the neighborhood, and hardly occurs disturbance in planting attitude seedlings because mud dropping also becomes good.

  A U-shaped notch K (see FIG. 3) is provided at the tip of the projecting portion 15e of the second seedling guide 15 to facilitate the attachment and detachment of the bolt 16 from the direction of arrow D shown in FIG. Even if the nut 17 is dropped, the first seedling guide 14 is easily dropped onto the field by the bolt 16 inserted into the base end portion 14a of the first seedling guide 14 bent into a ring shape. There is nothing.

  Moreover, the relative positional relationship between the seedling receiving portion 13b of the apron 13 and the planting claw 10 is changed by moving the apron 13 in the vertical direction in the tilt direction of the seedling mounting base 5, thereby changing the planting claw 10 In this case, the first seedling guide 14 and the second seedling guide 15 that are integrally assembled with the apron 13 are configured so that the amount of mat seedling scraped by the knives can be adjusted. Since the apron 13 moves in parallel with the apron 13, a large deviation between the wire-shaped first seedling guide 14 and the planting locus (stationary locus A) drawn by the planting claw 10 with the change in the scraping amount of the mat seedling. Does not happen.

The side view of a planting part. The principal part side view of the seedling stand lower end part. B arrow view in FIG. The side view which shows the seedling guide of the assembled state.

Explanation of symbols

5 Seedling stand 10 Planting claw 13 Apron 13a Sliding rail part 13b Seedling receiving part 13c Scraping opening 14 First seedling guide 14a Base end part 15 Second seedling guide 15e Front upper end part F Fitting part

Claims (2)

  An apron (13) provided with a sliding rail part (13a) and a seedling receiving part (13b) for supporting the lower end part of the seedling mounting base (5) so as to be capable of reciprocating left and right is provided with a scraping opening (13c). A first seedling guide (14) that comes into contact with the front part of the seedling scraped by the planting claw (10) from the opening (13c) and suppresses the scraping seedling from falling forward, and a planting claw (10 And a second seedling guide (15) that suppresses the spreading of the seedlings scraped off by a fitting part (in front of the attachment part to the apron (13) in the second seedling guide (15)). A seedling guide device in a transplanting machine, characterized in that F) is provided and is screwed to the fitting part (F) while the base end part (14a) of the first seedling guide (14) is elastically supported.   A front upper end portion (15e) of the second seedling guide (15) extends upward from a lower end portion of the sliding rail portion (13a) of the apron (13) and is fitted to the front upper end portion (15e). The seedling guide device for a transplanter according to claim 1, wherein (F) is provided.

Images