JP2007143501A - Seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make positioning of a seedling guide member precise and make seedling guide position of the seedling guide position adequate by stabilization of installation and improve planting accuracy, in the seedling guide member for guiding seedlings transferred to the planting position of a field by a seedling planting tool. <P>SOLUTION: In the seedling transplanter, the seedling planting tool for taking seedlings placed on a seedling-placing tank every one stock from a seedling-taking-out part, transferring seedlings downward and planting seedlings to the field and a seedling guide member (22) composed of a wire member extending downward from the neighborhood of the seedling-taking out part along a seedling transfer passage of the seedling planting tool are provided and a taking-out port-forming member for forming a seedling taking out port is provided at the seedling-taking out part and the seedling guide member (22) is made to abut on a hole (20) or a notch part provided at the taking-out port-forming member to carry out positioning of the seedling guide member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a seedling transplanting machine that takes out seedlings on a seedling tank one by one with a seedling planting tool and transplants the seedlings on a field, and belongs to the technical field of agricultural machinery.

Conventionally, as shown in Patent Document 1, the guide member provided along the planting movement locus at the tip of the seedling planting tool is a state in which the base is sandwiched between the support rail and the fitting fitting It is attached to.
JP-A-9-266711

  Since the conventional guide member has a mounting structure with only the base on the upper end side, not only the mounting state is unstable, but also the positioning is inaccurate, the seedling guide position cannot be optimized, and the planting accuracy is improved. There was a problem that caused a drop. It is an object of the present invention to accurately position a seedling guide member, to optimize the seedling guide position by stabilizing the mounting, and to improve planting accuracy.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention according to claim 1 is a seedling planting tool for taking seedlings placed in the seedling loading tank (12) one by one from the seedling extraction part (16), transferring them downward, and planting them in a field. 14) and a seedling guide member (22) made of a wire extending downward from the vicinity of the seedling extraction part (16) so as to follow the seedling transfer path of the seedling planting tool (14), the seedling extraction part (16 ) Is provided with an outlet forming member (19) for forming a seedling outlet (18), and the seedling guide member (22) is positioned in contact with a hole (20) or a notch provided in the outlet forming member. It is characterized by having a configuration.

  As a result, the seedling guide member (22) is engaged in and held in the hole (20) provided in the outlet forming member (19) at a midpoint below the attachment position of the base, and the positioning error is caused. The seedling guide member can be mounted simply by attaching only the base portion. Moreover, the positional relationship between the seedling outlet (18) and the seedling guide member (22) becomes appropriate, and the planting accuracy is improved.

  In short, according to the present invention, the seedling guide member (22) is positioned by engaging and holding the middle part of the seedling guide member (22) in the hole (20) provided in the outlet forming member (19). Positioning is accurate and the mounting configuration can be simplified. Moreover, although the mounting structure is simple, the mounting state of the seedling guide member is stable, the positional relationship between the seedling outlet (18) and the seedling guide member (22) can be optimized, and planting accuracy can be improved. be able to.

An embodiment of the present invention will be described with reference to the drawings.
1 and 2 show a riding rice transplanter that is an example of a seedling transplanting machine provided with a seedling planting device of the present invention. This riding rice transplanter 1 is equipped with an engine 2 and a pair of right and left that are driven and rotated. A six-row seedling planting portion 7 is connected to the rear of the traveling vehicle body 5 having the front wheels 3 and 3 and the rear wheels 4 and 4 via a lifting link 6. A driver's seat 8 is installed on the rear side of the traveling vehicle body 5 and in the upper part of the engine 2, and a steering handle 9 for steering the front wheels 3, 3 is provided on the front side of the driver's seat 8. Reference numeral 10 denotes a spare seedling placing table on which spare seedlings are placed.

  The seedling planting section 7 is provided with a seedling mounting tank 12 which can be reciprocated left and right so that the front portion is inclined to the upper side above the planting transmission case 11 input by transmission from the traveling vehicle body 5 side. A seedling planting device 13,... Capable of 6-row planting is provided at the rear end of the transmission case 11. When the aircraft is advanced with the float 15 in contact with the ground, the seedling mounting tank 13 reciprocates left and right, and the mat seedling on the tank is provided on the seedling receiving frame 17 of the seedling extracting portion 16 on the tank lower end side. The seedling planting device 14 of the seedling planting device 14 separates the seedling planting devices 14 from each other, transfers them to the lower side, and transfers them downward to plant them in the field.

  The seedlings that are transferred to the planting position of the field by the seedling planting tool 14 are not deviated from the seedling planting tool 14 in the left-right direction in the seedling receiving frame 17 that extends from the left and right parts of the back side of the seedling outlet 18 to the lower side as appropriate. A pair of seedling extraction guides 21 and 21 formed of a rubber material or the like that guides to are provided. In addition, a seedling guide member made of a round bar-like wire that guides the transferred seedling so as not to deviate forward from the seedling planting tool 14 at the front side corresponding portion of the seedling transporting path along the operation locus K of the seedling planting tool 14. 22 is opposed.

  The seedling extraction guides 21 and 21 are attached to the seedling receiving frame 17 via a fastening fixture 23 made of screws and nuts, with the base end side thereof being superposed on the extraction outlet forming member 19 that forms the seedling extraction outlet 18. ing.

  The seedling guide member 22 has an intermediate portion 22b separated from the attachment portion 22a provided to be bent annularly on the proximal end side toward the distal end side, and a long hole 20 (or a notch portion) provided in the outlet forming member 19. The base mounting portion 22a is detachably mounted via a locking fixture 24 such as a screw or bolt.

The outlet forming member 19 is attached to the seedling receiving frame 17 through the attachment hole 25. Reference numeral 26 denotes a mounting hole for the seedling guide member 22.
The embodiment shown in FIGS. 9 and 10 shows another example of the mounting structure of the seedling guide member. The seedling guide member 22 of this embodiment is provided with a bent locking portion 22c formed in the middle, and the bent locking portion 22c is provided in the center of the base end portion of the left and right extraction guides 21 and 21. 27, and the base end portion is clamped and fixed by only one clamping bolt 28. Conventionally, it was attached with two bolts, and the angle of attachment to the seedling planting tool was adjusted, but in this example, the bending locking portion 22c is inserted and locked in the notch groove 27 in the middle, By simply tightening one bolt, the mounting position angle is determined and no adjustment is required.

  In addition, in the embodiment shown in FIGS. 11 to 13, a locking member 22 d is provided in the vicinity of the proximal end side attachment portion 22 a of the seedling guide member 22, and the attachment portion 22 a is connected to the outlet by a single bolt 28. The engaging member 22d is configured to be directly attached to the forming member 19, and the engaging member 22d is engaged with a locking protrusion 29 protruding from the outlet forming member 19 to be positioned (stopped).

  In the embodiment shown in FIG. 14, the seedling receiving frame 17 and the support rail 30 of the seedling mounting tank 12 are supported by an L-shaped plate 31 that is bent into an L shape. Thereby, it is possible to sufficiently secure the sliding direction of the front receiving frame and the strength in the direction perpendicular to the sliding direction.

  As shown in FIG. 15, when the rotary cam 36 reaches the top dead center or the bottom dead center by driving the motor 35 that repeatedly stops at half rotation (approximately 180 degrees), the planting operation arm 37 and the paste operation are performed. The arm 38 is actuated so that planting / paste latch can be alternately turned on and off. The planting operation arm 37 and the paste operation arm 38 are configured to swing and displace about the same fulcrum axis P. The planting clutch is engaged via the shifter operating member 39 by the swinging displacement of the planting operation arm 37. The paste clutch is configured to be turned on and off, and the paste clutch is turned on and off via the operation linkage mechanism 40 by the swinging displacement of the paste operating arm 38.

  Since the operation arm for planting and the operation arm for paste are oscillated and displaced with the same axis as a fulcrum, the structure is simple, and since these are operated by a single rotating cam, there is an advantage that no malfunction occurs. .

  Further, in the embodiment shown in FIG. 16, the vertical rotation fulcrum shaft 42 of the paste nozzle 41 and the vertical rotation fulcrum shaft 43 of the float 15 are arranged at positions close to each other so that the front-rear position does not change so much. In the positional relationship between the planting drive shaft 44 and the vertical rotation fulcrum shaft 42 of the paste nozzle, the front and rear positions are provided close to each other so as not to change much. According to this, even if the depth to the ground of the paste nozzle is changed, the hose arrangement is not affected.

  As shown in FIGS. 17 and 18, a paste pump drive shaft 46 for feeding paste fertilizer is mounted on the interior of the square tube of the front frame 45. Separately configured paste tanks 47, 47 are arranged on the left and right sides of the vehicle body, and the pump shafts 48, 48 of the paste pump for feeding the paste fertilizer in the left and right tanks 47, 47 rotate from the pump drive shaft 46. It is linked to drive.

  Inside the front frame is a paste pump drive shaft that feeds paste fertilizer, so that the hollow space in the frame can be used effectively, eliminating the need for extra space and the need for a guard. Can be configured.

  Further, as shown in FIG. 19, in the paste spot fertilizing means, a paste fertilizer in a tank 47 provided on the traveling vehicle body side, in which a feed pump 50 for each strip is disposed immediately above the paste nozzle 41 and above the float 15. If it is configured to feed out, the accuracy of the feeding timing is stabilized and the lighting accuracy is improved. Further, a valve 51 is provided on the upper side of the feeding pump, and the valve 51 is configured to be opened when the feeding pump 50 is rotated forward and backward, and closed when the feeding pump is stopped. According to this, the fertilizer leak prevention effect at the time of reverse feed pump can be improved, and the fertilizer leak at the time of stoppage of the feed pump can also be prevented.

Side view of rice transplanter Same as above Side view of essential parts of seedling planting device Rear view of the main part Perspective view of seedling outlet forming member Side view of seedling outlet forming member Same as above Same as above Front view of main parts of seedling planting device Side view of the main part Side view of part of seedling planting device Top view of the main part Rear view of the main part Side view of essential parts of seedling planting device Side view of planting / paste clutch operating mechanism Side view of the main part of the seedling planting part Side view of essential parts of rice transplanter with fertilizer application Top view of the main part Side view of the main part of the paste spot fertilizer application device Diagram of pump speed and valve opening / closing

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Seedling mounting tank 14 Seedling planting tool 16 Seedling planting part 17 Seedling receiving frame 18 Seedling outlet 19 Takingout forming member 20 Long hole 22 Seedling guide member

Claims (1)

  A seedling planting tool (14) for picking seedlings placed in the seedling loading tank (12) one by one from the seedling extraction part (16), transferring them downward, and planting them in the field, and the seedling planting tool (14) A seedling guide member (22) made of a wire extending downward from the vicinity of the seedling extraction section (16) along the seedling transfer path is provided, and a seedling extraction outlet (18) is formed in the seedling extraction section (16). A seedling transplanter provided with an outlet forming member (19) and configured to position the seedling guide member (22) in contact with a hole (20) or a notch provided in the outlet forming member. .

Images