JP2007006790A - Transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transplanter so designed that the lowermost-tiered preliminary seedling stand at the inner side of a supporting column is made easy to retreat owing to a retreating mechanism and a wide fertilizer feed space is formed above fertilizer tanks to facilitate the operation of feeding fertilizer to the tanks. <P>SOLUTION: The transplanter has the following construction: Fertilizer tanks 2a are loaded on a traveling machine body 4 left and right and preliminary seedling stand apparatuses 2 are installed where preliminary seedling stands 31 are arranged in multiple tiers at predetermined intervals inside and outside of the supporting columns 30 set upright outside of the fertilizer tanks 2a. In this transplanter, the preliminary seedling stands 31 arranged inside the supporting columns 30 and representing the second tier from the bottom are arranged with a fertilizer feed space H apart from the top of the fertilizer tanks 2a, and the lowermost-tiered preliminary seedling stands 31a are attached and supported on the supporting columns 30 in such a manner as to be switchable to a retreating posture for feeding fertilizer to the tanks 2a through retreating via the retreating mechanism 35 from above the feed ports 2b of the tanks 2a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a preliminary seedling mounting structure for a transplanter that simultaneously performs seedling planting and fertilization.

Conventionally, a planting device for scraping seedlings from a seedling stand and planting them in a field scene and a fertilizer tank that contains paste-like fertilizers, and a riding-type transplanter that applies fertilizer simultaneously with planting seedlings, Equipped with a fertilizer tank on the front left and right, and a spare seedling platform device (auxiliary seedling platform device) that has a plurality of spare seedling platforms with a certain vertical spacing on the pillars that stand up to the outside ing.
This preliminary seedling stage device is arranged with four stages of the preliminary seedling stage facing the inside and the outside of the support, and the innermost lower stage seedling stage is placed close to the fertilizer tank. . (For example, Patent Document 1).
This spare seedling stage device is configured to rotate the support to rotate and retract the entire preliminary seedling stage sideways to form a fertilizer supply space above the fertilizer tank and to supply fertilizer from the supply port It has become.
JP 2002-291111 A

  In the preliminary seedling stage structure shown in Patent Document 1, the four stages of the preliminary seedling stage are opposed to the inner side and the outer side of the support, and the innermost lower stage seedling stage is placed close to the fertilizer tank. Therefore, there is an advantage that the center of gravity of the preliminary seedling stage device can be lowered and the transplanting operation can be performed. However, when the fertilizer supply space is formed, the retraction operation is performed against the weight of all the spare seedling platforms, so that the support structure for stably rotating the support is complicated while the support is turned heavy. There are disadvantages such as. Moreover, since the range in which the support seedling stage is retracted by rotating the support is restricted, there is a problem that it is difficult to form a sufficient fertilizer supply space on the fertilizer tank.

  For this reason, it is a fixed-type spare seedling stage device that does not rotate the struts and the spare seedling stage, omits the installation of one stage of the seedling stage above the fertilizer tank, and this range is not installed in advance. It is possible to provide a fertilizer supply space by forming it in a space, but in this case, a three-stage preliminary seedling stage is provided on the inner side and a five-stage preliminary seedling stage is provided on the outer side with respect to the column whose height is restricted. As a result, the balance between the right and left of the support column is deteriorated, and the preliminary seedling stage, which is the lowermost stage on the outside, is too low to make it difficult to remove the mat seedling from the control unit side. There is.

  In order to solve the above problems, the preliminary seedling support structure of the transplanter according to the present invention firstly includes a fertilizer tank 2a mounted on the left and right sides of the traveling machine body 4, and a column 30 that is erected outside the fertilizer tank 2a. In the transplanting machine provided with the preliminary seedling stage device 2 in which the preliminary seedling stage 31 is arranged in a plurality of stages at predetermined intervals on the inner side and the outer side, the second stage of the preliminary seedling stage placed on the inner side of the support 30 The stand 31 is arranged with the fertilizer supply space H separated from the upper end portion of the fertilizer tank 2a, and the lowermost seedling stage 31a is placed on the support column 30 via the retraction mechanism 35 from above the supply port 2b of the fertilizer tank 2a. It is retracted and is mounted and supported so as to be switchable to a retracted posture for supplying fertilizer to the fertilizer tank 2a.

  Secondly, in order to switch the lowermost standby seedling stage 31a arranged inside the support column 30 to the retracted position, the lowermost preliminary seedling stage 31b arranged outside the support column 30 and two stages from the bottom It is characterized in that it is located at a predetermined distance from the preparatory seedling mount 31 of the eyes.

According to the transplanter of the present invention configured as described above, the second-stage preliminary seedling stage placed from the bottom is arranged with the fertilizer supply space separated from the upper end of the fertilizer tank, and the lowermost stage. By retracting the spare seedling stage from the upper side of the fertilizer tank supply port to the support via the retracting mechanism, the preliminary seedling stage can be easily retracted by the retracting mechanism, and the fertilizer tank supply port A wide fertilizer supply space can be easily formed above the upper part of the upper side. And it can make it easy to perform the fertilizer supply operation | work to a fertilizer tank, without interfering with a reserve seedling stand through a fertilizer supply space.
In addition, when the reserve seedling platform is in the retracted position, a fertilizer supply space of approximately two steps can be formed on the fertilizer tank, and for example, four steps on the inside and outside without raising the overall center of gravity. It is possible to provide the same number of spare seedling stage, and it is possible to configure a preliminary seedling stage device that does not impair the left-right balance.

  The lowermost preliminary seedling stage placed on the inner side of the column is positioned at a predetermined interval between the lowermost preliminary seedling stage placed on the outer side of the column and the second stage seedling stage. Thus, a wide fertilizer supply space can be easily formed above the fertilizer tank. In addition, it is possible to easily take out mat seedlings from the control unit side, because the lowermost lower stage seedling platform can be provided at a low position to lower the center of gravity and to form a wide spare seedling platform non-installation space above. Can do.

An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a riding type transplanter provided with a preliminary seedling stage structure (preliminary seedling stage apparatus) 2 according to the present invention above a fertilizer tank 2a installed on both sides of the front part of the machine body.
This transplanter 1 is mounted on a traveling machine body 4 having a front wheel 3 and a rear wheel 3a with an engine E covered by a bonnet 5 at the front part, a control part 6 disposed behind it, and the engine E from the engine E on the abdomen. A driven transmission 7 and a fertilizer pump 8 are provided, and a planting device 10 is supported at the rear of the machine body via an elevating link mechanism 9 so that the planting device 10 can be moved up and down. Fertilizer can be fed and fertilized.

The control unit 6 includes a deck portion 11 formed in a flat shape in an intermediate portion of the traveling machine body 4, a handle 12 and a seat 13 disposed before and after the deck portion 11, and the seat 13 corresponds to the deck portion 11. It is installed on the upper part of the seat frame 15 erected in the rear center.
This deck portion 11 is formed by connecting a front step 16 and a rear step 17 which are flat surfaces that can be walked and moved along the outer sides of the bonnet 5 and the seat frame 15 respectively.

The planting device 10 is grounded at the time of planting, a seedling stage 19 on which mat seedlings for 8 strips are placed, each of the planting claws 20, 20,. It consists of a plurality of floats 21 and the like. Each float 21 attaches and supports a plurality of fertilizer nozzles 22 downward.
The fertilizer in the fertilizer tanks 2a, 2a is fed from the fertilizer pump 8 through the fertilizer pipes 23 and fertilized from the fertilizer nozzles 22, 22,. It has become. Further, the fertilizer tanks 2a, 2a are provided with a fertilizer supply port that is opened and closed by a tank lid 2b at the front surface of the fertilizer tank 2a, and it is possible to supply the fertilizer to the fertilizer tank 2 from the end using step 16.

  The preliminary seedling stage device 2 and the fertilizer tank 2a are both attached and supported in a rigid structure on a support frame 25 formed at the front portion of the traveling machine body 4. The support frame 25 is formed in an inverted U shape in plan view, and has a front frame 26 that extends to the outside of the left and right fertilizer tanks 2a, 2a at the front of the machine body, and from both sides of the front frame 26 to the rear. The side frames 27 and 27 are extended.

The front frame 26 is attached and fixed to the front lower position from the machine frame 4a via a plurality of brackets 4b, and the side frames 27 and 27 are arranged in the middle part of the machine frame 4a by a plurality of intermediate support frames 29. The support frame 25 is firmly attached and fixed to the machine base frame 4a by being attached and fixed to the side portions.
As described above, the support frame 25 attached and fixed in a rigid structure can also use the front frame 26 as a bumper frame. Further, a footrest member 28 having an anti-slip surface can be provided on the left and right sides of the front frame 26, and an operator can step on the footrest member 28 at a low position and perform a fertilizer supply operation to be described later in a stable posture. It is also possible to make it easier to get on and off 16.

Next, the configuration of the spare seedling stage device 2 will be described. First, the support columns 30, 30 that support and constitute the preliminary seedling mounting device 2 are erected with the base side made of pipe ridges fixed to the middle portions of the side frames 27, 27 of the support frame 25. And the support | pillars 30 and 30 insert and connect and fix the connection rod 32 formed in the downward U-shape to the connection part 30a formed in the upper end part.
Further, the upper portions of the support columns 30 and 30 are connected and reinforced by inverted L-shaped stays 33 and 33 erected from the front side of the side frames 27 and 27. Also, the support columns 30 and 30 are provided with mounting cylinders 34 and 34 on the base side, and the lower end portion of the connecting rod 32 that is removed when the fuselage is stored can be inserted into the mounting cylinders 34 and 34 to be supported. The lower portions of the columns 30 and 30 can be connected and reinforced.

  As shown in FIG. 3 to FIG. 6, the preliminary seedling stage device 2 in the embodiment has four stages of the preliminary seedling stage 31 (31 a) on the inner side and the outer side of each support column 30 erected as described above. , 31b) is attached at a predetermined position to be described later. The support 30 is provided with a total of eight preliminary seedling platforms 31 that are the same as the number of mat seedlings placed on the seedling platform 19 of the planting device 10, and 16 pieces of left and right like the conventional ones. A preliminary seedling stage structure including a preliminary seedling stage 31 is provided, and mat seedlings can be preliminarily placed and transplanted.

The four preliminary seedling platforms 31 provided on the inner side of the support column 30 have an interval at which the lowermost preliminary seedling platform 31a can be installed from the upper surface of the fertilizer tank 2a so that one preliminary seedling platform 31 can be installed. In an open state, it is arranged in four stages with a standard seedling placement interval (seedling stand standard interval) above.
The four preliminary seedling platforms 31 provided outside the support column 30 are arranged such that the lowermost preliminary seedling platform 31b is positioned at a height close to the fertilizer tank 2a, and is lower than the innermost lower seedling platform 31a. One seedling stand standard interval (predetermined interval) is disposed on the side, and the second stage seedling stand 31 can be installed at an interval (hereinafter simply referred to as a single seedling stand 31). (This is referred to as a “preliminary seedling stand non-installation space”) L is arranged in an open state, and the upper three seedling placement stands 31 are arranged in three stages with the same seedling stand standard intervals as described above. .

That is, as shown in FIG. 3, the preliminary seedling stage device 2 configured as described above is configured so that the second stage preliminary seedling stage 31 arranged on the inner side of the support column 30 is changed from the upper end of the fertilizer tank 2 a to the fertilizer. The supply space (spare seedling stage non-installation space) H is arranged with a space therebetween, and the lowermost preliminary seedling stage 31a is retracted from the upper side of the supply port 2b of the fertilizer tank 2a to the support column 30 via a retraction mechanism 35 described later. The fertilizer tank 2a is mounted and supported so as to be switchable to a retracted posture for supplying the fertilizer.
And the innermost lower stage seedling stage 31a is formed between the outer first stage (lowermost stage) spare seedling stage 31b and the outer second stage preliminary seedling stage 31 and is not installed. The spare seedling platforms 31, 31... In the third and higher stages can be retreated in the space L, and are arranged oppositely at the same position as a pair inside and outside.

  Further, in the illustrated example, the preliminary seedling stage mounting structure for mounting and supporting each preliminary seedling stage 31 on the support column 30 is configured such that the lowermost preliminary seedling support base 31ba provided inside the support column 30 is provided by a retraction mechanism 35 as shown in FIG. The other preliminary seedling mounts 31 are attached and supported by an attachment / detachment support mechanism 36 as shown in FIG.

The retraction mechanism 35 will be described. First, a reserve seedling stage (hereinafter simply referred to as a movable spare seedling stage) 31 at the innermost lower stage is rotated laterally from the seedling mounting position shown by the solid line in FIGS. It is possible to reversibly switch to the retracted posture (fertilizer supply posture) that has been retracted and moved into the seedling stand non-installation space L.
As shown in FIG. 6, the retracting mechanism 35 is a cylindrical rotation in which a mounting rod 37 is provided in the middle of the column 30 having a cylindrical cross section so that the movable spare seedling table 31 is detachably mounted on the left and right. The rod 39 is inserted and inserted, and the upper and lower portions of the rotating rod 39 are positioned and supported by the fixing pieces 40 and 41 provided on the column 30 so as to be rotatable.

Accordingly, when the movable preliminary seedling table 31 is supported by the inner mounting rod 37 protruding from the rotating rod 39 and the rotating rod 39 is rotated, the rotation can be switched from the seedling mounting posture to the retracted posture. .
Reference numeral 42 denotes a fixing pin that is inserted and removed when the movable preliminary seedling stage 31 is switched and fixed between the two postures. The attachment rod 37 is the same as that of the attachment / detachment support mechanism 36 described later, and the attachment / detachment support mechanism 36 of the movable preliminary seedling stand 31 with respect to the rotation rod 39 has the same structure.

Next, the attachment / detachment support mechanism 36 will be described with reference to FIG. First, the support rods 30 are provided with mounting rods 37 for attaching the respective seedling stand 31 at predetermined positions on the inner side and the outer side in the same manner as the rotating rods 39, and the cross-sectional shape of the mounting rods 37 is polygonal (illustrated example). Is a hexagon).
The illustrated seedling mounting table 31 is attached to and detached from a mounting frame 50 having a mounting cylinder 45 formed with a hexagonal mounting hole to be fitted to the mounting rod 37 and a plate shape that follows the shape of the mounting frame 50. It is comprised from the seedling mounting plate 51 which is positioned and mounted so as to be possible.

The mounting frame 50 is formed in a U shape in a plan view by projecting the horizontal flange portions 53, 53 at both ends of the vertical flange portion 52 having the mounting cylinder 45.
The mounting frame 50 is fixed by shifting the mounting cylinder 45 by a predetermined distance (center of gravity movement distance) from the center of the length of the vertical flange 52 to one side.

With this configuration, as shown by the arrow in FIG. 5, when the mounting frame 50 is fitted to the mounting rod 37 of the support column 30 via the mounting cylinder 45 with the mounting cylinder 45 disposed on the rear side, The preliminary seedling stage 31 can be positioned and supported in a substantially horizontal posture by the square fitting, and the center of gravity of the preliminary seedling stage 31 can be positioned on the front side.
Further, when each of the preliminary seedling mounts 31 is removed from the mounting rods 37 and then turned upside down, the mounting tube 45 can be mounted on the front side, and the mounting tube 45 can be attached to the inner and outer mounting rods 37. By replacing and fitting, the support 30 can be provided on the support column 30 in a state where the center of gravity of the preliminary seedling table 31 is moved to the rear side.

According to the above configuration, the structure for attaching and detaching the preliminary seedling stage 31 is simple, and the position of the center of gravity of the preliminary seedling stage device 2 is changed by changing the preliminary seedling stage 31 so that the front-rear balance at the time of traveling work is simple. There is an advantage that the vehicle can be adjusted to be stable and can be driven with good stability.
It should be noted that the preliminary seedling table 31 can be prevented from being detached by fixing means such as a bolt (not shown) provided on the mounting rod 37 side of the mounting tube 45 inserted into the mounting rod 37.

  As described above, the preliminary seedling stage device 2 in which each preliminary seedling stage 31 is provided on the support column 30 is the innermost lowermost movable preliminary seedling stage among the plural stages of the preliminary seedling stage 31 provided on the inside and outside of the support column 30. Since the stand 31 is arranged above the upper end of the fertilizer tank 2a with a predetermined interval and the movable spare seedling stage 31 can be retracted from above the fertilizer tank 2a, the seedling box can be placed even in a state where it is placed. The fertilizer supply operation can be performed easily and efficiently.

  That is, the single movable preliminary seedling stage 31 can be rotated lightly around the support column 30 by the retraction mechanism 35, and the outermost lowermost preliminary seedling stage 31b and the second stage preliminary seedling stage 31 can be rotated. It can be easily switched by moving it into the space L for non-installing the seedling stand. Thus, the movable preliminary seedling stage 31 is stored in a retracted position without interfering with the surroundings, and a fertilizer supply space in which the fertilizer supply space H is enlarged to the height of the inner second stage preliminary seedling stage 31 is easily formed. can do.

As a result, the operator can easily open the exposed tank lid 2b within the widely formed fertilizer supply space, and properly expose the container as a fertilizer supply tool and the fertilizer supply tank to the supply port. The fertilizer supply work can be performed efficiently and reliably.
At this time, the operator can carry out the fertilizer supply work in a stable posture by carrying the fertilizer supply tank from the heel side and setting the foot on the footrest member 28 or step 16.
Moreover, the movable preliminary seedling table 31 can be returned to the original seedling mounting position by the reverse operation, and the transplanting operation can be continued promptly.

  In this transplanting operation, the spare seedling stage device 2 forms a fertilizer supply space H on the fertilizer tank 2a with respect to the preliminary seedling stage non-installation space L formed above the lowermost preliminary seedling stage 31b. Since the movable preliminary seedling stage 31 provided is opposed to each other and each of the third and higher stages of the preliminary seedling stage 31 is opposed to the same position as a pair inside and outside, a fertilizer supply space for two stages In order to form H, it is possible to place and set eight mat seedlings by raising one stage without raising the preliminary seedling stage 31 two steps higher than the conventional one, and suppressing the rise in the center of gravity. There is an advantage that it can be configured.

  At this time, the lowermost lower stage seedling stand 31b lowers the center of gravity at a low position and contributes to running stability, and even if it is the farthest position from the control section 6, a wide spare seedling stand non-installation space L is formed upward. Therefore, the mat seedling can be easily taken out from the control unit 6 side without taking an unreasonable posture.

  In the illustrated example, the retracting mechanism 35 of the movable preliminary seedling table 31 is configured to rotate the rotary rod 39 on the support column 30. It is also possible to provide a mechanism for switching and supporting the movable preliminary seedling stage 31 to the retracted posture by moving it upward in the direction along the support 30.

It is a side view of the transplanter provided with the preliminary seedling mounting device of the present invention. It is a top view of FIG. It is a front view which shows the structure of the preliminary seedling mounting base apparatus of the transplanter of FIG. It is a top view which shows the effect | action of the movable reserve seedling mounting stage of FIG. It is a perspective view which shows the structure and effect | action of the attachment / detachment support mechanism of a preliminary seedling mounting stand. It is a side view which shows the structure of a evacuation mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transplanter 2 Preliminary seedling stand device 2a Fertilizer tank 4 Traveling machine body 30 Prop 31 Preliminary seedling stand 35 Retraction mechanism H Fertilizer supply space L Spare seedling stand non-installation space

Claims (2)

  The fertilizer tank (2a) is mounted on the left and right of the traveling machine body (4), and the preliminary seedling platforms (31) are arranged in a plurality of stages on the inside and outside of the support (30) standing outside the fertilizer tank (2a). In the transplanting machine provided with the spare seedling stage device (2) arranged at a predetermined interval, the preliminary seedling stage (31) in the second stage from the bottom arranged inside the support (30) is used as a fertilizer tank (2a). ) With a fertilizer supply space (H) separated from the upper end of the fertilizer tank (2a) through the retreat mechanism (35) with the lowermost preliminary seedling stage (31a) on the support (30) A transplanter that is retracted from above (2b) and is mounted and supported so as to be switchable to a retracted posture for supplying fertilizer to the fertilizer tank (2a). In order to switch the lowermost preliminary seedling stage (31a) arranged inside the support (30) to the retracted position, the lowermost preliminary seedling stage (31b) arranged outside the support (30) The transplanter according to claim 1, wherein the transplanter is positioned at a predetermined interval from a preliminary seedling stage (31) in the second stage from the bottom.

Images