JP4076507B2 - Ride type rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a riding type rice transplanter having a structure in which the piping routes of hoses for connecting feeding portions to furrow openers can simply be changed into piping routes not interfering with peripheral members. <P>SOLUTION: This rice transplanter manufactured by liftably connecting a planter to a travel machine frame, disposing a hopper for putting agricultural granules therein and multiple row feeding portions for delivering the agricultural granules from the hopper on the travel machine frame, disposing a seedling tray 17 and furrow openers 19 for forming furrows for feeding the agricultural granules to the surface of a paddy field on the surface of the paddy field on the planter, and disposing hoses 23 for connecting the feeding portions to the furrow openers 19 is characterized by disposing piping route-changing mechanisms (support members 29) for laterally displacing the hoses 23 along the back side of the seedling tray 17 to change the piping routes for the hoses. <P>COPYRIGHT: (C)2005,JPO&amp;NCIPI

Description

  The present invention includes a planting device connected to a traveling machine body so as to be movable up and down, and a hopper for putting agricultural powder particles into the traveling machine body, and a multi-row feeding section for feeding the agricultural powder particles of the hopper. The planting device is equipped with a seedling stage and a groover for forming a groove on the surface for supplying agricultural powder to the surface, and a hose for connecting the feeding portion and the groover. It relates to type rice transplanters.

Conventionally, in this type of riding type rice transplanter, the hose for supplying the agricultural granular material contained in the hopper to the grooving device from the feeding portion is prevented from interfering with surrounding members (for example, rear wheels). A hose support member that regulates the path is provided. For example, the hose is locked to the planting device with members fixed to the planting device such as the hose guide frame (137), the holding band (138), and the support arm (140) in Patent Document 1, 1 and the like, such as the hose coupling body (141) and the left and right locking portions (142) in FIG.
JP 2000-152706 A (FIG. 20)

  However, with the configuration as in Patent Document 1, the hose is supported by the fixing member at a plurality of locations, and it is necessary to provide a large number of hose support members for regulating the piping path of the hose in the planting device. There is a problem that the structure of the planting device becomes complicated.

  SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a configuration in which a hose that connects a feeding portion and a groove producing device can easily change the structure of a piping path that does not interfere with surrounding members (for example, rear wheels). .

[I]
(Constitution)
The first feature of the present invention is that a planting device is connected to the traveling machine body so as to be movable up and down, and a hopper for putting the agricultural powder particles into the traveling machine body, and a multi-row feeding for feeding the agricultural powder particles in the hopper. A planting device, a planting device, and a hose for connecting the feeding unit and the groove-growing device, including a seedling stage and a groove-growing device for forming a groove for supplying the agricultural granular material to the surface. In the riding type rice transplanter having
A support member that supports the hose is provided in a planting device, and the support member is configured to be urged in a lateral direction along the back surface of the seedling stage,
When the planting device is raised and the hose sag, the support member is configured to include a piping path changing mechanism that changes the piping path of the hose by displacing the hose in the lateral direction along the back surface of the seedling mount. It is.

(Function)
According to the first feature of the present invention, when the planting device is raised and the hose sag, the piping path changing mechanism for changing the hose piping path by displacing the hose laterally along the back surface of the seedling platform. Therefore, the following effects are produced.
If the planting device is in the non-lifted position, the hose will not sag, so the hose connecting the feeding section and the groover maintains a normal piping path and interferes with surrounding members (for example, rear wheels). do not do. When the planting device is raised, sagging occurs in the hose due to the close-up of the feeding portion and the groove generator. The sagging hose hangs down due to gravity, unlike the piping path before displacement in front view or plan view, as the sagging hose is displaced laterally along the back of the seedling platform by the piping path changing mechanism. The piping route is not taken, and the piping route is changed so as not to interfere with surrounding members (for example, rear wheels). Thus, without providing a large number of members for fixing and supporting the hose in the planting device, interference between the hose and surrounding members (for example, rear wheels) can be prevented by providing a piping path changing mechanism, Piping path can be constructed with simple structure.
Since the planting device is provided with a support member that supports the hose, and the support member is configured to be urged in the lateral direction along the back surface of the seedling table, the planting device is raised and sagging in the hose When this occurs, the support position of the support member supporting the hose is displaced laterally by the bias, and the piping path of the hose is changed. Also, when the planting device is lowered and the distance between the feeding part and the groove producing device becomes longer, the tension of the hose connecting the feeding part and the groove producing device increases, and the support position that has been displaced laterally is Due to the increased tension of the hose, it is operated so as to return to the position before the displacement against the bias, and the piping path of the hose returns to the original state .
Thus, as the planting device moves up and down, the hose support position is moved laterally by urging or tension of the hose itself, so that the support position is moved according to the slack of the hose. A separate mechanism is not required, and the piping route can be changed according to the slack of the hose with the support member alone.

(effect)
According to the first feature of the present invention, since an appropriate piping path can be configured with a simple structure, the number of parts of the riding rice transplanter can be suppressed, the member cost can be reduced, and the appearance can be improved.
Also, there is no need for a separate mechanism for moving the support position according to the slack of the hose, and it is possible to change the piping path according to the slack of the hose with a single support member. It can be configured, and the number of parts of the riding type rice transplanter can be suppressed, the cost of the member can be reduced, and the appearance can be improved.

  FIG. 1 shows an overall side view of the riding type rice transplanter, and FIG. 2 shows an overall plan view thereof. This riding type rice transplanter is moved up and down by the operation of a hydraulic cylinder 2 at the rear of the riding type traveling machine body 1. By connecting the seedling planting device 4 via the swinging link mechanism 3 and mounting the fertilizer application device 5, it is configured to have a mid-mount fertilization specification.

As shown in FIGS. 1 and 2, the traveling machine body 1 transmits power from an engine 6 mounted on the front thereof via a belt-type transmission device 7 and a hydrostatic continuously variable transmission 8. 9 and is configured to be a four-wheel drive type that transmits the driving power from the gear type transmission device 9 to the left and right front wheels 10 and the rear wheels 11, and on the rear side, the left and right front wheels 10 are steered. A boarding operation unit 14 including a steering wheel 12 and a driver seat 13 is formed.

  In the seedling planting device 4, the ground leveling float 15 levels the seedling planting site in advance as the aircraft travels, while the working power from the gear type transmission device 9 is the power distribution mechanism 16 (see FIGS. 3 and 4). The seedling stage 17 is reciprocated with a constant stroke in the left-right direction with the distributed power from the power distribution mechanism 16, and each of the rotary type plantings arranged side by side at a predetermined interval in the left-right direction. The mechanism 18 is configured to perform a planting operation in which a predetermined amount of seedlings are taken out from the lower end of the seedling mount 17 and planted in the field.

  In the fertilizer application 5, the grooving device 19 provided in the leveling float 15 forms a fertilization groove so as to correspond to each planting line as the machine travels, while each feeding device 20 is connected to the gear transmission 9. The fertilizer in the fertilizer hopper 21 is fed out by a predetermined amount with the working power, and the fertilizer fed out in each feeding device 20 by the operation of the blower 22 is pumped toward the corresponding groove forming device 19 through the fertilizing hose 23. Thus, the fertilizer is configured to be buried in the lateral side portion of the planted seedling in the field. In the following description, the left side component from the center of the fuselage will be described, but the right side portion is configured in the same manner.

  As shown in FIG. 3 and FIG. 4, a relief valve 24 that can be opened and vented when the wind pressure in the fertilizer hose 23 becomes stronger than a predetermined value is located in the middle of the fertilizer hose 23 on the back side of the seedling platform 17. Is provided. A pair of seedling support 26 extends toward the upper side of the seedling support 17 at the left and right ends of the planting part frame 25 erected across the left and right in the lower part on the back side of the seedling planting device 4. The seedling support 26 is provided with a mounting stay 28 in parallel with the planting part frame 25 via a bracket 27. The relief valve 24 is provided with a locking portion 24a, and the mounting stay 28 is bolted to the relief valve 24 at the locking portion 24a.

  As shown in FIG. 6, the relief valve 24 projects from the cylinder body 24 b that externally connects the fertilizer hose 23, a branch path 24 c that branches obliquely upward and laterally, and branches a cap 24 d that is biased downward by its own weight. It is constructed so as to cover the end of the path 24c. The locking portion 24a is formed by a pair of flanges 24e that are formed integrally with the cylinder main body 24b and have opposing surfaces parallel to each other. The root side of the hose guide 29 (corresponding to the support member of the present invention) is located between the flanges 24e, and the hose guide 29 and the relief valve 24 are fastened to the mounting stay 28 together with bolts 30.

  The hose guide 29 is attached to the attachment stay 28 so as to extend toward the feeding device 20 side from the relief valve 24 in the fertilization hose 23. That is, as shown in FIGS. 6, 7 and 8, a long hose guide 29 is formed by bending a spring wire, and the base side is bolted to the mounting stay 28, and the fertilizer hose The loop part 29a which latches and guides 23 is formed in the front-end | tip. The loop portion 29a has an open port on the outer side of the machine body in a plan view, and has a substantially semicircular shape. In a natural state where no external force acts, the hose guide 29 faces obliquely outward with respect to the mounting surface of the mounting stay 28 (see FIG. 6). However, when the loop portion 29a is locked to the fertilizer hose 23, the hose guide 29 The loop part 29a is positioned in a state where the elastic force of the guide 29 balances the force of returning the loop part 29a outward in the lateral direction of the machine body and the force of the fertilizer hose 23 pulling the loop part 29a inward of the machine body. . In this way, the piping path of the fertilizer hose 23 is determined in a state where the tension of the fertilizer hose 23 and the elastic force of the hose guide 29 are balanced.

Specifically, when the seedling planting device 4 is in the lowered position, the distance between the feeding device 20 and the groove producing device 19 extends, so the fertilizer hose 23 that connects both takes a straight piping path in plan view, The hose guide 29 holds and holds the fertilizer hose 23 in a state where the elastic force is stored. When the seedling planting device 4 is set to the raised position, the distance between the feeding device 20 and the grooving device 19 is reduced, so that sagging occurs in the fertilizer hose 23 that connects the two. At this time, since the hose guide 29 storing the elastic force tends to return to a natural state, the fertilizer hose 23 locked by the loop portion 29a is swung in a plan view or a front view by the swinging of the loop portion 29a of the hose guide 29. Take a bypassed piping route. Therefore, the slack produced when the seedling planting device 4 is lifted is absorbed by the change of the piping path in the left-right direction, so that interference with surrounding members can be prevented.

  Thus, by guiding the fertilization hose 23 with the hose guide 29 which is a support member, the slack of the fertilization hose 23 accompanying the raising and lowering of the seedling planting device 4 can be absorbed, and the back surface of the seedling mounting platform 17 It is possible to prevent interference with a spring (not shown) for preventing rolling of the planting device provided in the rear wheel 11 and the rear wheel 11. In addition, it can be used as a guide for cables for other mechanical devices, and since the configuration is simple, an effect of improving the appearance can be expected.

  The air blower 22 which produces the wind pressure for pumping the fertilizer toward the corresponding groove producing device 19 through the fertilizer hose 23 will be described. As shown in FIGS. 1, 2, 9, and 10, the blower 22 includes a blower 31 and a blower 33 provided with an electric motor 32 that drives the blower 31, and a lower end portion of each feeding device 20. A blower duct 34 connected to the front side, and an intake duct extending from the intake port 31a of the blower 31 of the blower 33 to the front side of the vehicle body and having an extended end side opened to a driving part having the engine 6 and the engine exhaust muffler 36. 35.

  The air duct 34 is provided so as to communicate with the fertilizer discharge port 39 formed on the rear side of the lower end of each of the plurality of feeding devices 20 in a straight line in the longitudinal direction of the vehicle body. The horizontal pipe-shaped distribution duct portion 41 that is connected to the vehicle body 40 and the portion 41a that is located at the center of the distribution duct portion 41 in the vehicle body lateral direction is directed downward from the vehicle body and slightly forward. And an introduction duct portion 42 formed integrally with the central portion 41a so as to be a single part with the central portion 41a. The introduction duct portion 42 of the air duct 34 is arranged in a state of passing through the vehicle body cover 43 covering the upper portion of the rear portion of the vehicle body frame at the center portion in the left-right direction of the vehicle body behind the driver seat 13. The introduction port 42 a of the introduction duct portion 42 is connected to the outlet 31 b of the blower 31 below the vehicle body cover 43.

  In other words, the air blower 22 sucks the air heated inside the prime mover having the engine 6 and having a temperature rise through the intake duct 35 by the blower 31 driven by the electric motor 32, so that the high-temperature fertilizer conveying wind is supplied. The fertilizer conveying wind is sent from the outlet 31b to the distribution duct portion 41 through the introduction duct portion 42 of the blower duct 34, and is distributed to the plurality of feeding devices 20 by the distribution duct portion 41. The fertilizer discharge port 39 is supplied from the wind intake port.

  As shown in FIG. 10, the lower end position H <b> 1 of the air inlet 31 a of the blower 31 is configured to be lower in the height direction than the lower end position H <b> 2 of the outer periphery of the motor 32. With this configuration, when water enters the blower 31 from the feeding device 20 side and reaches the height of H1, the water is discharged to the outside through the intake duct 35. . Therefore, even if a large amount of water enters the blower 31, the motor 32 does not enter the water, and the possibility of failure of the motor 32 is reduced.

Side view of the entire riding rice transplanter with fertilizer application Plan view of the entire riding rice transplanter with fertilizer application Side view of seedling planting device Rear view showing the route of fertilization hose when the seedling planting device is lowered Rear view showing the route of fertilization hose with the seedling planting device raised Enlarged front view showing the relief valve and its surroundings provided on the left side of the aircraft center Enlarged side view showing relief valve and its surroundings provided on the left side of the machine body An enlarged plan view of the hose guide provided on the left side from the center of the machine Longitudinal rear view of fertilizer application and blower Longitudinal rear view showing the internal structure of the blower

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling machine body 4 Planting apparatus 17 Seedling stand 19 Grower 20 Feeding part 21 Hopper 23 Hose 29 Support member

Claims (1)

A planting device is connected to the traveling machine body so as to be movable up and down, and the traveling machine body is provided with a hopper for putting agricultural powder particles, and a multi-row feeding section for feeding the agricultural powder particles of the hopper, The planting device includes a seedling stage and a groover for forming a groove on the surface of the farm to supply the agricultural granular material to the field surface, and a hose for connecting the feeding portion and the groover. A riding rice transplanter,
A support member that supports the hose is provided in a planting device, and the support member is configured to be urged in a lateral direction along the back surface of the seedling stage,
There comprises the hose sags raises the planting device, the support member is displaced laterally along the hose to the back surface of Naeno stand, a pipe path changing mechanism for changing the pipe path of the hose Riding type rice transplanter.

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