JPH065408U - Seedling planting equipment - Google Patents

Abstract

(57) [Summary] [Purpose] The seedlings can be taken out smoothly using the planted nails.
(EN) Provided is a seedling planting device in which the edge of the seedling stand can be easily repaired and replaced. [Structure] A seedling take-out port 5 is formed on a sliding rail 4 which slidably receives and supports the lower end of the seedling placed on a seedling placing table 3 which reciprocates laterally, and from this seedling take-out port 5, seedlings to be planted A planting claw 17 for taking out and planting in the field is provided, and the distance between the seedling receiving surface 4a of the sliding rail 4 and the seedling taking-out position by the planting claw 17 is configured to be changeable and adjustable. In the apparatus, a part 28 of the edge of the seedling placing surface 3a of the seedling placing table 3 on the seedling taking-out port 5 side is detachably attached to the seedling placing surface body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention forms a seedling take-out port on a sliding rail that slidably receives and supports the lower end of a seedling placed on a seedling stand that moves laterally back and forth, and takes out the target seedling to be planted from this seedling take-out port. The present invention relates to a seedling planting device, which is provided with a planting claw for planting in a field by changing the distance between the seedling receiving surface of the sliding rail and a seedling take-out position by the planting claw.

[0002]

[Prior art]

 In the above-mentioned seedling planting apparatus, conventionally, the seedling stand and the slide rail are integrally moved up and down to adjust the amount of the planting claw entering the seedling take-out opening, that is, the seedling taking amount. It was configured (see, for example, Japanese Utility Model Laid-Open No. 1-98519).

[0003]

[Problems to be solved by the device]

 However, in the case of the conventional structure described above, the operation path of the planting claw is at a fixed position, but since the seedling stand and the slide rail move up and down integrally, The distance between the inner edge and the locus of the planting nail will change with the adjustment of the harvesting amount. The distance between the seedlings became large, and the seedlings to be planted and the succeeding seedlings could not be separated smoothly when the seedlings were taken out by the planting claw, and the seedlings were dragged. Therefore, as a method to eliminate such an adverse effect, the seedling stand is fixed in the vertical direction so that it can be moved only in the horizontal direction, and only the sliding rail is moved up and down independently along the seedling supply direction. A configuration that allows adjustment was considered. In such an improved structure, the relationship between the lower edge of the seedling table in the seedling feeding direction and the locus of the planting claw is set by making these positions, which are fixed in the vertical direction, as close as possible to each other. Although it is possible to solve the problem, this structure may cause the planting claws to interfere with the bottom edge of the seedling stand due to the assembly error of each member. May be damaged. However, since the seedling placing table is configured to be horizontally reciprocally moved in the lateral direction and is a large member, the repair work for these seedlings becomes large, which is a troublesome work. The present invention aims to solve the above-mentioned inconveniences by rational structural improvement.

[0004]

[Means for Solving the Problems]

 A feature of the present invention is that in the seedling planting device described at the beginning, a part of the end edge of the seedling placement surface of the seedling placement surface on the seedling placement surface is attached to and detached from the seedling placement surface main body. The point is that it is installed on its own.

[0005]

[Action]

 Even if the lower edge of the seedling stand interferes with the operation trajectory of the planting claws due to the assembly error of each member or the adjustment of the seedling removal amount, a part of the edge part on the seedling take-out port side Since the seedlings are detachably attached to the main body of the seedling mounting surface, it is possible to remove and repair the entire seedling stand, which is a large member, by replacing only a part of the damaged seedling outlet side edge. Repair work can be performed easily without any hassle.

[0006]

[Effect of device]

 Therefore, even if the edge of the seedling table is damaged due to the interference between the edge of the seedling table and the planting claw caused by an assembly error, the seedling table can be repaired and replaced with a simple operation. It is possible to bring the edge of the seedling take-out port side of the seedling as close as possible to the operation locus of the planting claw, so that the seedlings to be planted and the succeeding seedlings can be separated smoothly during the seedling planting operation. By adopting a structure that can be independently adjusted up and down, it is possible to always maintain the distance between the above-mentioned edge and the operating locus of the planting claw at a small interval regardless of the seedling removal amount adjustment. Become.

[0007]

EXAMPLES Examples will be described below with reference to the drawings. Figure 1 shows the rear of the rice transplanter. This rice transplanter is configured by connecting a seedling planting device 2 to a rear part of a traveling machine (not shown) via a linking mechanism 1. The seedling planting device 2 puts seedlings for planting and reciprocates horizontally with a constant stroke. Seedlings are taken out one by one from the seedling take-out port 5 formed on the moving seedling stand 3 and the slide rail 4 slidably supporting the lower end of the seedling placed on the seedling stand 3, and planted in the field. The planting mechanism 6 and the leveling float 7 are provided. An endless swivel type vertical feed is provided in the upper and lower middle portions of the seedling placing surface 3a of the seedling placing table 3 to vertically feed a predetermined amount of the placed seedlings to the seedling taking-out port side at a lateral movement stroke end of the seedling placing table 3. A device 8 is provided. The vertical feeding device 8 is configured to wind an endless rotating belt 11 having a projection around upper and lower pulleys 9 and 10 and to rotate the lower pulley 10. That is, as shown in FIG. 2, in a state in which the operating arm 14 that is rotationally driven in a fixed direction via the one-way rotation clutch 13 to the support shaft 12 of the lower pulley 10 is returned to the standby position by the spring and biased. A pair of left and right rotary cams 16 are attached to the vertical feed drive shaft 15 which is installed and supported in the horizontal direction, and at the end of the lateral movement stroke, the operating arm 14 is attached to the rotary cam 16 which is constantly driven to rotate. Are contacted with each other and rotated by a predetermined amount to drive the endless rotating belt 11 to rotate. Further, this rice transplanter is provided with a mechanism for changing and adjusting the seedling removal amount per one planting by the planting claw 17 in the planting mechanism 6. That is, the slide rail 4 that receives and supports the lower end edge of the placed seedling is configured to be movable along the seedling slide direction, and slides via the link mechanism 19 in accordance with the operation of the seedling picking amount adjustment lever 18. The moving rail 4 can be moved and adjusted, and the distance between the seedling receiving surface 4a of the sliding rail 4 and the operation locus L by the planting claw 17 is changed, so that one plant seedling picking by the planting claw 17 can be performed. It is configured so that the amount can be changed. That is, the depth of penetration of the planting claw 17 with respect to the seedling take-out port 5 formed on the slide rail 4 is relatively changed. However, since the relative relationship between the operation locus L of the planting claw 17 and the seedling stand 3 is constant regardless of such adjustment operation, the edge of the seedling placing surface on the seedling take-out port 5 side and the planting surface are planted. By making the locus L of the attachment nail 17 smaller, the separation from the succeeding seedling in the planting operation can be reliably performed. In this rice transplanter, the vertical feed amount by the vertical feed device 8 is changed in conjunction with the above-mentioned work for adjusting the seedling removal amount. In other words, the operation arm 14 of the vertical feed device 8 is supported in abutment at the return biasing side standby position, and the abutment tool 20 for regulating the standby posture thereof is attached to the seedling stand 3 in a fixed position. The cylinder 21 is configured so that its position can be freely changed, and by changing the standby posture, the contact swing amount by the rotary cams 16, 16 can be changed, that is, the vertical feed rotation amount can be changed, and the electric cylinder can be changed. 21 is configured to be driven and controlled by a control device 22 equipped with a microcomputer. The control device 22 takes in the data of the seedling taking amount from the potentiometer PM provided at the swinging fulcrum of the seedling taking amount adjusting lever 18, and based on the predetermined characteristics as shown in FIG. The electric cylinder 21 is drive-controlled so as to correspond to. The actual operation amount of the electric cylinder 21 is configured to be fed back to the control device 22 by the stroke sensor 23. Further, the control characteristics are configured to be changed to various characteristics by the setting device 24 according to the characteristics of the seedling. That is, in contrast to the characteristic Q1 when the seedlings are of standard hardness, when the seedlings are soft, the characteristic Q2 is set to reduce the vertical feed amount relative to the amount of seedlings taken, and when the seedlings are hard. The characteristic Q3 is set so as to increase the vertical feed amount relative to the seedling removal amount. As described above, as a result of reducing the edge of the seedling placement surface 3a on the seedling take-out port 5 side and the locus L of the planting claw 17, the planting claw 17 of the planting claw 17 may be damaged due to assembly error or long-term use. If the edge of the seedling placement surface 3a on the seedling take-out port 5 side is damaged due to the operation, the repair work can be easily performed. That is, the lower side seedling placing portion of the support member 26, which is attached to the rear surface of the lower end side of the seedling placing table 3 so as to be slidable with respect to the frame 25, is substantially continuous with the seedling placing surface main body and the sliding rail. 4 is placed so as to overlap with the upper side of the seedling placing portion 4b, and the placing supporting member 28 made of a material having high rigidity and being resistant to rust is placed on the upper side of the lower side seedling placing portion of the supporting member 26. The left and right ends are detachably attached with screws. This placement support member 28 constitutes a part of the edge portion of the seedling placement surface 3 a on the seedling removal port side. The upper side of the placing support member 28 in the seedling moving direction is formed into a hook shape to be locked and supported by the end portion of the seedling placing portion of the supporting member 26, and formed into a smooth circular arc shape. It is designed so as not to get caught. Further, as shown in FIG. 3, the end edge of the mounting support member 28 on the side of the planting claw is formed with a large number of notches 29 so that it can be slightly elastically deformed, and the planting claw 17 interferes with it. Even so, it is considered that only a part of it may be modified.

It should be noted that although reference numerals are added to the claims of the utility model for easy comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Side view of the rear part of rice transplanter

[Fig. 2] Side view of the notch on the bottom of the seedling stand

[Fig. 3] Plan view of the lower end of the seedling stand

[Figure 4] Vertical feed rate characteristic diagram

[Explanation of symbols]

 3 Seedling support 3a Seedling placement surface 4 Sliding rail 4a Seedling receiving surface 5 Seedling take-out port 17 Planting claw 27 Seedling placement surface main body 28 Part of seedling placement surface

Claims (1)

[Scope of utility model registration request] 1. A seedling take-out port (5) is formed on a slide rail (4) slidably receiving and supporting a lower end of a seedling placed on a seedling stand (3) which reciprocates laterally. It is equipped with a planting claw (17) for taking out the seedling to be planted from the seedling take-out port (5) and planting it in the field, and by the seedling receiving surface (4a) of the sliding rail (4) and the planting claw (17). A seedling planting device configured to be able to change and adjust a distance from a seedling take-out position, the edge portion of the seedling placement surface (3a) of the seedling placing table (3) on the seedling take-out port (5) side. Seedling planting device in which a part (28) of the above is detachably attached to the main body of the seedling placing surface.