JP2511648B2 - Structure of the device attachment part of the spare seedling of the walk type rice transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walk-behind rice transplanter equipped with a preliminary seedling placing device and a fertilizer applying device. A walk-behind rice transplanter equipped with a fertilizer applicator equipped with a preliminary seedling placing device is, for example, as shown in Japanese Utility Model Laid-Open No. 60-185421, between left and right traveling wheels. There is a plant with a fixed seedling placement device and a fertilizer fertilizer tank installed above the running wheels. In the above structure, since the weight of the spare seedling and the weight of the fertilizer act near the axle, the weight of the spare seedling does not disturb the front-rear weight balance of the body and the stability of the body is ensured. However, in order to remove the preliminary seedlings from the control position behind the aircraft, it is necessary to extend the hands forward over the seedling stand because the preliminary seedling placement device is fixed. It was often troublesome to take out. The present invention has been made paying attention to such a point, and facilitates the taking out of seedlings from the preliminary seedling placing device, and reduces the labor at the time of fertilizer replenishment work by utilizing the structure. , With the aim of improving the handleability. Further, since the upper end of the fertilizer tank is at a high position, it was necessary to raise the fertilizer bag or container and support it by hand while supplying fertilizer. In practice, a fertilizer bag or container may be temporarily placed on the edge of the fertilizer tank to reduce the strain on the hand, but since a fertilizer tank is generally made of a lightweight plastic material, There is a risk that the fertilizer tank will be damaged if the load on the rim is applied incorrectly, so it was necessary to carefully perform fertilizer replenishment work. In order to achieve the above object, a walk-behind rice transplanter with a fertilizer application device according to the present invention has a fertilizer tank of the fertilizer application device disposed in the front-rear direction near the axle of a traveling wheel. In a walk-behind rice transplanter with a fertilizer application, which is equipped with a preliminary seedling setting device on the upper part of the machine body, the auxiliary seedling setting device is provided above the fertilizer tank so as to be movable back and forth via a guide rail, and the guide rail is also provided. Is placed near the upper end of the fertilizer tank and installed. Further, in order to achieve the above-mentioned object, the front-back movement range of the preliminary seedling placing device on the guide rail is
The seedling stand support frame located in front of the rear edge of the upper end opening of the fertilizer tank at the position where the preliminary seedling placing device moves to the front side, the auxiliary seedling placing device moves to the rear side along with the movement to the rear side. It is advisable to set it in a range that deviates rearward from the upper end opening position of the fertilizer tank. For the same purpose, a pair of left and right guide rails for guiding the preliminary seedling placing device so as to be movable back and forth,
The fertilizer tank may be disposed above the fertilizer tank, and the front end portions of the left and right guide rails may be connected to each other by a bridge portion. According to the above construction, the auxiliary seedling placing device is located close to the fertilizer tank during planting to maintain the front-rear weight balance of the aircraft, and the auxiliary seedling placing device is slid backward to take out the auxiliary seedling taking out the aircraft. Makes it easy to remove seedlings from the rear. When replenishing fertilizer to the fertilizer tank, move the preliminary seedling placing device backwards to open the guide rail part near the upper end of the fertilizer tank, and place the fertilizer bag and supply container on this empty guide rail part to make it heavy. Supplying fertilizer from the opening at the top of the fertilizer tank without the need to hold the fertilizer bag or supply container while supplying it and the total weight of the fertilizer does not directly affect the top of the fertilizer tank. You can Further, as described in claim 2, the front and rear movement range of the preliminary seedling placing device on the guide rail is defined by the seedling placing frame of the preliminary seedling placing device.
If the range is set to the rear side of the upper end opening position of the fertilizer tank with the movement of the spare seedling placing device to the rear side, the spare seedling placing device is moved backward when the fertilizer is replenished. Since the upper end opening of the fertilizer tank is not obstructed by the placing device portion, the replenishment work can be easily performed at this point. Further, the wheels are located on the side of the guide rail on the side of the fertilizer tank, and the distance from the worker on the side of the wheels to the fertilizer tank or the guide rail tends to be large. As described above, by providing a bridge portion that connects the front end portions of the left and right guide rails, the worker does not stick to the wheel lateral position, but is located in front of the wheel avoiding the wheel position, and the tank, the guide rail, and the bridge are located. Fertilizer replenishment work can be performed while approaching the part. Therefore, it is possible to more easily perform the supply operation with the fertilizer bag or the like placed on the guide rail or the bridge portion at the approaching position. Further, the strength of the guide rails is improved by connecting the left and right guide rails by the bridge portion. As a result, at the time of taking out the preliminary seedlings, it is possible to easily take out the preliminary seedlings from the rear of the machine body, and the weight of the fertilizer when the fertilizer is supplied to the guide rails that support the preliminary seedling placing device so as to be movable back and forth. It can be used as a supporting member, and the fertilizer can be replenished with less labor without imposing an excessive load on the fertilizer tank. By adopting the configuration described in claim 2, it is possible to easily perform the replenishment work of the fertilizer in the fertilizer tank without being hindered by the existence of the preliminary seedling placing device.
By adopting the configuration according to claim 3, since not only the left and right guide rail portions that support the preliminary seedling placing device so as to be able to move back and forth, but also the bridge portion can be used as a fertilizer weight supporting member when replenishing fertilizer, It is possible to expand the range that can support the weight of fertilizer when supplying fertilizer. Therefore, if the front bridge portion of the guide rail is used, fertilizer can be supplied more easily without hindering the existence of the wheels, and the strength of the guide rail can be improved at the bridge portion. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 5, a pair of left and right traveling wheels 1 and 1 are mounted so that they can be moved up and down, and have an engine 2 arranged at the front of the machine body. On the rear part of the self-propelled vehicle having a control section 4 provided with a, a cover 5 for covering the engine 2 and an upper part of a body frame (not shown), a preliminary seedling placing device 6 arranged in front of the control section 4, and the like. , 4 seedling planting arms 7 arranged side by side in the machine direction,
A seedling planting section having a seedling stand 8 is provided, and a plurality of ground floats 9 ... Are attached to the lower portion of the self-propelled machine body. Then, in synchronization with the seedling planting movement of the seedling planting arms 7, powdered fertilizers are intermittently taken out from the plurality of fertilizer tanks 10 ...
By attaching a fertilizer application device configured to supply fertilizer while forming fertilization grooves near each of the four-row seedling planting points to the self-propelled machine, it is possible to perform fertilization work simultaneously with four-row seedling planting work. The walk-type rice transplanter is configured as described above. The preliminary seedling placing device 6 ...
As shown in FIG. 4, four seedling support bases 6a ... and a seedling support base frame 1 for supporting these seedling support bases 6a vertically and horizontally are supported.
2 and a pair of left and right guide rails 13,
Four mounting parts 14 are provided on the seedling support frame 12 arranged so as to act on each of the two guide rails 13, and are mounted on the left and right guide rails 13, 13.
The seedling support frame 12 includes the left and right support frame bodies 12a,
12a and a rod portion 12b that connects the left and right support frame bodies 12a, 12a to each other. As shown in FIG. 1, the left and right guide rails 13 and 13 are connected to the self-propelled vehicle body portion 16 at both ends via a connector 15.
In addition, the intermediate portion is formed in the longitudinal direction portion of the fuselage on both end sides of one bent angle pipe 17 connected to the cover 5. As shown in FIG. 4, each of the four mounting portions 14 is formed so that a portion engaging with the guide rail 13 has a bifurcated shape which straddles the guide rail 13 when viewed in the longitudinal direction of the machine body. The pair of legs 14a, 14a and the guide rail 13 are abutted against each other so that the guide rail 13 can be slid while being prevented from lateral displacement, and the guide rail 13 can be fitted from above. Further, it is made of a synthetic resin so that the guide rail 13 slides smoothly, and a rod portion 12b for connecting the left and right support frame bodies 12a, 12a of the seedling stand support frame 12 is formed as described above. It is bolted to the support frame body 12a. That is, the preliminary seedling placing device 6 is attached to the seedling placing base support frame 1
A pair of guide rails 13 are provided so that a handle 18 attached to the guide rail 2 can be manually slid in the front-back direction of the machine body and the mounting portion 14 can be mounted on the guide rail 13 only by fitting the mounting portion 14 from above. It is attached to 13. A pair of left and right brake tools 19, 19 for fixing the preliminary seedling placing device 6 to the sliding operation position are provided on the left and right support frame bodies 12a, 12a of the seedling placing base support frame 12.
And a pair of springs 21 and 21 that are individually acted on the pair of brake tools 19 and 19 and slidable inside the handle 18. It is configured to be operated by a brake operating tool 22 attached to the. That is, when the brake operating tool 22 is not operated, as shown by the solid line in FIG. 1, the left and right brake tools 19 and 19 have the brake shoe portion 19a at the free end thereof guided by the urging force of the spring 21. It is operated in a mounting posture in contact with the bottom surface of the seedling, and is brought into an acting posture so as to fix the preliminary seedling placing device 6 in a slidingly operated position by friction with the guide rail 13. When the brake operating tool 22 is gripped together with the handle 18, as shown by the phantom line in FIG. 1, the left and right brake tools 19, 19 are respectively braked by the sliding operation force of the brake operating tool 22. Is operated downwardly from the guide rails 13 to release the braking action on the preliminary seedling placing device 6 to allow the preliminary seedling placing device 6 to slide so as to be in the releasing posture. Each of the pair of left and right brake tools 19 and 19 acts as a brake shoe portion 19a and acts on the guide rail 13 from below to prevent the attachment portion 14 from slipping out upward from the guide rail 13. It is configured to prevent the preliminary seedling placing device 6 from coming off. More specifically, the position of the preliminary seedling placing device 6 is adjusted in order to supply the seedlings to the preliminary seedling placing device 6 and the seedling placing base 8 and to supply the fertilizer to the fertilizer tanks 10 located at the left and right central portions of the machine body. In doing so, while pushing the grip 18 of the brake operating tool 22, push the handle 18 forward,
By pulling backward, the front stroke end where the mounting portion 14 on the front side abuts the inclined portion 13a on the front end side of the guide rail due to the lateral bending of the front end side of the guide rail 13 as shown in FIG. The position and the rear stroke end position where the mounting portion 14 on the rear side contacts the inclined portion 13b on the rear end side of the guide rail due to the downward bending of the rear end side of the guide rail 13 as shown in FIG. During this period, the preliminary seedling placing device 6 slides back and forth. Thus, in the state where the preliminary seedling placing table 6 has reached the rear stroke end position, that is, in the state where the rear mounting portion 14 is in contact with the inclined portion 13b on the rear end side of the guide rail, FIG. As can be understood from the positional relationships of FIG. 2 and FIG. 5, in FIG. 2, which shows the state close to the front stroke end position of the preliminary seedling placing table 6, the seedling placing that was located above the upper end opening of the fertilizer tank 10 is performed. The rod portion 12b of the platform support frame 12 is located rearward of the upper end opening of the fertilizer tank 10. That is, the guide rail 13
As a front-back movement range of the preliminary seedling setting device 6 above, the seedling setting base positioned in front of the rear end edge of the upper end opening of the fertilizer tank 10 at the front moving position of the preliminary seedling setting device 6. A part of the support frame 12 is a preliminary seedling placing device 6
Is set to a range that is displaced rearward from the upper end opening position of the fertilizer tank 10 as the fertilizer tank 10 moves rearward. Then, by releasing the grip operation of the brake operating tool 22, the pair of brake tools 19, 19 are brought into the working posture, and the preliminary seedling placing device 6 is fixed at the adjusting position. The left and right connecting members 15, 15 are configured to swing with respect to the body portion 16 about an axis P pivotally attached to the body portion 16 at the rear end side of the cover 5. When the cover 5 is vertically swung up and down, the preliminary seedling placing device 6 is also swung together with the cover 5. Display plate 2 for operating position of the traveling speed change lever 23
4 is attached to the pair of connecting members 15 and 15. [Other Embodiments] In order to fix the preliminary seedling placing device, an engagement type lock mechanism may be adopted in addition to the friction type brake. It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of the drawings] [Fig. 1] Side view with partial cutout of the preliminary seedling placing device [Fig. 2] Plan view with partial cutout of the preliminary seedling placing device [Fig. 3] Rear view of the preliminary seedling placing device [Fig. 4] Cross-sectional view of the guide rail mounting part of the spare seedling placing device [Fig. 5] Side view of the entire walk-behind rice transplanter [Explanation of reference numerals] 1 Wheels for traveling 6 Preliminary seedling placing device 10 Fertilizer tank 12 Seedling support frame 13 Guide rail 13c Bridge part

Claims (1)

(57) [Claims] 1. A fertilizer applicator near the axle of the traveling wheel (1) in the longitudinal direction.
The fertilizer tank (10) of
Walk with fertilizer applicator equipped with spare seedling placement device (6)
In the type rice transplanter , a guide rail (1) is provided above the fertilizer tank (10).
3) The spare seedling placing device (6) that can be moved back and forth through
And the guide rail (13) of the fertilizer tank (10).
An installation characterized by being installed near the upper end
Walk-type rice transplanter with fertilizer. 2. A walk-behind rice transplanter with a fertilizer application equipped with a fertilizer fertilizer tank (10) near the axle of the traveling wheel (1) in the front-rear direction and equipped with a preliminary seedling placing device (6) at the top of the machine. In the upper part of the fertilizer tank (10), the guide rail (1
3) The spare seedling placing device (6) that can be moved back and forth through
And the guide rail (13) is placed near the upper end of the fertilizer tank (10) and installed, and the forward and backward movement range of the preliminary seedling placing device (6) on the guide rail (13) is , Its seedling setting device (6)
Seedling stand support frame (1) located forward of the rear end edge of the upper end opening of the fertilizer tank (10) at the moving position of the fertilizer tank (10) to the front side.
2) A walk-behind rice transplanter with a fertilizer application device, which is set in a range in which the auxiliary seedling placing device (6) is displaced rearward with respect to the upper end opening position of the fertilizer tank (10) with the rearward movement. 3. A walk-behind rice transplanter with fertilizer application, which has a fertilizer tank (10) for fertilizer application near the axle of the traveling wheel (1) in the front-rear direction and is equipped with a preliminary seedling placing device (6) on the top of the machine. In the upper part of the fertilizer tank (10), the guide rail (1
3) The spare seedling placing device (6) that can be moved back and forth through
And a guide rail (13) is installed near the upper end of the fertilizer tank (10), and a pair of left and right guide rails (6) for guiding the preliminary seedling placing device (6) so as to be movable back and forth. 13) is the fertilizer tank (1
0) A walk-behind rice transplanter with a fertilizer application, which is disposed at a position above 0), and the front end portions of the left and right guide rails (13) are connected by a bridge portion (13c).