JP2003061425A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that, in a seedling-transplanter having such a construction that a transplanting part is placed on the rear part of the seedling transplanter of a motive power vehicle, a feeding device of a fertilizing apparatus is placed on the backside of an operator seat and on the front side of the planting part, and the fertilizing apparatus transports fertilizer from the feeding device to a fertilizing port near a seedling-transplanting position of the transplanting part through a fertilizing hose, if powers are transmitted from the front side of the operator seat to the transplanting part and to the feeding port of fertilizing apparatus through different transmission mechanisms, the transmission mechanism becomes complicated. SOLUTION: In a seedling transplanter having the above-mentioned construction, power is transmitted to the transplanting part 4 through an input shaft 45 which transmits power from the front side of the operator seat 9 to the backside. At the same time, the input shaft 45 is branched on the backside of the center in terms of the front and back direction of the operator seat 9, and power is transmitted to the feeding device 31 of the fertilizing apparatus 5.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling planter in which a feeder of a fertilizer is disposed behind a cockpit of a machine and in front of a planting section. is there. 2. Description of the Related Art A planting section is mounted on the rear of the power plant, which is a power vehicle, and a fertilizer is provided behind the cockpit of the machine and in front of the planting section. A fertilizer is arranged in the seedling transplanter, and a fertilizer is transferred from the dispenser via the fertilizer hose to a fertilizer port near the seedling planting position of the planting part. If the transmission is performed by a different transmission mechanism from the front of the cockpit to the planting section and the feeder of the fertilizer application, respectively, the transmission configuration becomes complicated. [0003] In order to solve the above problems, the present invention has the following configuration. That is, the planting section 4 is attached to the rear of the machine 2 which is a powered vehicle, and the feeder 3 of the fertilizer 5 is provided behind the cockpit 9 of the machine 2 and in front of the planting section 4.
1 and the fertilizer applicator 5 transfers fertilizer from the feeder 31 via the fertilizer hose 33 to a fertilizer port near the seedling planting position of the planting section 4.
The input shaft 4 that transmits from the front to the rear of the cockpit 9 of the machine 2
5 and a transmission from the input shaft 45 to the feeder 31 of the fertilizer applicator 5 at the rear of the front and rear center of the cockpit 9. Seedling planter. Accordingly, the seedling transplanter according to the present invention transmits the seedlings from the main unit 2 to the planting unit 4 via the input shaft 45, so that the seedlings are planted by the planting unit 4 while the main unit 2 is running. The fertilizer can also be applied by the fertilizer 5 by branching from the input shaft 45 behind the center of the cockpit 9 and transmitting to the feeder 31 of the fertilizer 5. [0005] Accordingly, the input shaft 45 transmitting from the machine 2 to the planting section 4 branches off from the front and rear center of the cockpit 9 to transmit to the feeder 31 of the fertilizer device 5. With this configuration, the transmission configuration of the fertilizer application device 5 to the feeder 31 is simplified. Since the transmission branch of the fertilizer applicator 5 to the feeder 31 is located behind the front and rear center of the cockpit 9, the transmission mechanism from the transmission branch to the feeder 31 is located at the rear of the cockpit 9. The maintenance of the transmission mechanism can be easily performed from the rear side of the machine 2 without the cockpit 9 being in the way. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A seedling planting machine 1 shown in FIG. 1 is a fertilizing rice planting machine, and this fertilizing rice planting machine 1 is attached to a link device 3 provided in a main unit 2 which is a power vehicle. Is provided so as to be able to ascend and descend, and a fertilizer application device 5 is provided in a space between the main unit 2 and the planting section 4. In the figure, 6 is a front wheel, 7 is a rear wheel,
Reference numeral 8 denotes an engine, and 9 denotes a cockpit. The link device 3 is a link base 1 of the main unit 2.
A pair of left and right upper links 1 rotatably attached to 0
1, 11 and lower links 12, 12, and a connecting frame 13 is connected to the rear ends of these upper and lower links. The planting portion 4 is mounted on a rolling shaft 14 projecting rearward from the lower end of the connection frame 13 so as to be rotatable in a plane perpendicular to the traveling direction. The piston rod 18 of the hydraulic cylinder 17 having the base mounted on the machine frame 16
11 is connected to the distal end of a swing arm 15 protruding downward from the base of the plant 11. The planting section 4 is moved up and down by expanding and contracting the hydraulic cylinder. The hydraulic cylinder 17 is controlled by a hydraulic valve 28 described later. The planting section 4 includes a transmission case 20 also serving as a planting section frame, a seedling mounting table 21 which is provided above the transmission case with a front side inclined upward, and a rear end of the transmission case 20. Planting devices 22, ... for the number of planting strips provided in
The seedling mounting table 21 reciprocates left and right to sequentially supply the seedlings on the table to a seedling take-out port provided below the seedling mounting table.
Move vertically while drawing a predetermined trajectory, and the planting claw 23a of the planting rod 23 clamps the seedling supplied to the seedling removal outlet above the trajectory. It is open at the lower part of the track and is planted in the field. A center float 25 and a pair of left and right side floats 26, 26 are provided below the planting section 4, so that the field scene is leveled while proceeding with the airframe. Each of the floats 25, 26, 26 is provided with a groove forming device 27 for forming a groove for seedling planting at a predetermined position in the field scene. The center float 25 is also a sensor for detecting unevenness in a field scene, and the hydraulic valve 28 is driven according to the vertical movement of the center float 25. That is, when the center float 25 moves upward, the hydraulic valve 28 is driven in a direction to extend the hydraulic cylinder 17, and conversely, when the center float 25 moves downward, the hydraulic valve 28 is driven in a direction to contract the hydraulic cylinder 17. The fertilizer applicator 5 includes a fertilizer hopper 3 for adding fertilizer.
The feeder 3 feeds the fertilizer in the fertilizer hopper 30 sequentially downward by rotating the feed roll 31a.
, And fertilizer hoppers 32, ... provided facing the groove for seedling planting, and flexible fertilizer hoses 33, ... connecting the feeders 31, ... and the fertilizer hoppers 32, ... Become. Among them, the fertilizer hoppers 30,... And the feeders 31,... Which are the main parts of the fertilizer applicator are attached to a fertilizer application frame 35 laid horizontally on the link base 10. As shown in FIG. 11, the fertilizer application frame 35 is hollow, and warm air in the engine room 37 is supplied to the lower end of the feeder 31 through the fertilizer application frame 35 by the blower 36. The fertilizer is made to flow smoothly and is prevented from solidifying in the fertilizer hose. As shown in the figure, the fertilizer can be properly fed from the feeder 32 to the fertilizer hose 33 as shown in the figure.
It is preferable that the air inlet 38 for hot air or the like be provided in a portion of the funnel portion 31b of the feeder having a relatively large cross-sectional area. In addition,
The blower 36 is driven by power transmitted from the engine output shaft 8a via the transmission belt 36a. The working unit drive output of the machine 2 is a planting / fertilizing clutch case 40 provided at the rear of the body behind the cockpit 9.
, Where the output for driving the planting portion and the output for driving the fertilizer are separated and taken out. The output for driving the planting unit is transmitted to the transmission case 20 via the planting unit transmission shaft 41, and the output for driving the fertilizer is output from the clutch side arm 4.
2. It is transmitted to the feed roll 31a via a transmission mechanism including a connecting rod 43 and a feeder side arm 44. The structure of the clutch case 40 is as shown in FIGS. That is, an input shaft 45 connected to a transmission, a planting clutch shaft 46 to which the planting portion transmission shaft 41 is connected via a joint 41a, and a fertilizing clutch shaft 4 to which the clutch-side arm 42 is attached.
7 and a counter shaft 48 are supported in parallel, and the planting clutch shaft 4 is connected from the input shaft 45 via the counter shaft 48.
6 and from the input shaft 45 to the fertilizing clutch shaft 47. Input shaft gear 50,
51 and the gears 52 and 53 of the counter shaft, and the gears 54 and 55 of the counter shaft and the gears 56 and 57 of the planting clutch shaft selectively mesh with each other. Can be adjusted.
The gear 58 of the fertilizing clutch shaft is always meshed with the gear 51. Next, the configuration of the planting clutch 40A will be described. A cylindrical body 6 in which the gears 56 and 57 are integrally formed.
Numeral 0 is rotatably attached to the planting clutch shaft 46. The planting clutch body 61 is non-rotatably and slidably fitted to the planting clutch shaft 46 so as to face the cylindrical body 60. The planting clutch body 61 is made up of a cylindrical body 6 by a spring 62.
0, and are always claw 60a, 61a
Are engaged with each other to engage the planting clutch, but the planting clutch is disengaged by moving the planting clutch body 61 to the side opposite to the cylinder 60 with the planting clutch pin 63. The fertilizing clutch 40B has the same configuration as the planting clutch. A cylindrical body 65 integrally formed with the gear 58 is rotatably fitted to the fertilizing clutch shaft 47, and the fertilizing clutch body 66 is connected to the fertilizing clutch shaft 47. Are fitted non-rotatably and slidably. The planting clutch body 61 is urged toward the cylinder body 65 by a spring 67, and the claws 65a and 66a of both are normally engaged with each other to be in a fertilizing clutch. By moving the body 66 to the opposite side of the cylinder 65, the fertilization clutch is disengaged. Planting clutch 40A and fertilizing clutch 40B
The on / off operation and the raising / lowering operation of the planting section 4 are performed by a common operation lever 70 provided on the right side of the cockpit 9.
4 to 9 show the mounting portion, and the operation lever 70
A planting cam 72A, a fertilizing cam 72B, and a hydraulic cam 72C are integrally mounted on a mounting shaft 71 of the first roller 71, and a roller 73 (which contacts a cam surface formed on the lower surface of the cam 72 (A, B, C)). A, B, C) are operating arms 74
(A, B, C). Each operation arm 74 (A, B, C) is rotatably mounted on the operation arm shaft 75 up and down, and is urged toward the cam by a spring 76 (A, B, C). Planting operation arm 74A
The fertilizing operation arm 74B is provided with the fertilizing clutch pin 68 and the tension wire 77 for applying tension to the transmission belt 38 for driving the blower. Also,
A valve operation wire 78 for operating the hydraulic valve 28 is attached to the hydraulic cam 72C. The operation lever 70 is designed to rotate back and forth.
Is set. The hydraulic cam 72C is a positioning cam for the operation lever, and includes positioning recesses formed on the cam surface.
When the roller 73C is engaged with the
0 is stably held at the lever position. In addition, the operation wire 78 advances and retreats due to the rotation of the hydraulic cam 72C, and the hydraulic valve 28 is appropriately switched. That is, when the operation lever 70 is at the position "up", when it is at the "fixed", when it is at the "down", and when it is at the "auto". The planting cam 72A is wider than the roller 73A, and a guide plate 80A is provided at an appropriate position. The roller 73A is held by a pair of springs 81A, 81A so as to be movable left and right. The roller 73A follows a different path on the cam surface between when and 70 are operated. That is, when the operation lever 70 is operated from behind, the roller 73A passes in the order of →→→→ on the cam surface, but when the operation lever 70 is operated from behind, the roller 73A passes through in the order of → ′ →→→ on the cam surface. It passes. The roller 73A is located on the cam surface.
′, The planting clutch is disengaged, and when the roller 73A is on the cam surface, the planting clutch is engaged. The same applies to the relationship between the fertilizing cam 72B and the roller 73B. When the operating lever 70 is manually operated, the roller 73B passes through the cam surface, but when the operating lever 70 is manually operated, the roller 73B is driven by the cam. Face '
Via. When the roller 73B is on the cam surface, the fertilizer application clutch is disengaged and the blower 36 is inactive. When the roller 73B is on the cam surface, the fertilizer application clutch is engaged and the blower 36 is turned on. Operate. 80B in the figure is a guide plate, and 81B is a spring. Tables 1 and 2 summarize the relationship between the lever position and the planting clutch, fertilizing clutch and hydraulic valve described above. That is, when the operating lever 70, which is an operating tool, is stepped forward in a stepwise manner, the planting unit 4 is lowered from the raised position to the lowered position, and the fertilizer 5 and the planting unit 4 are sequentially operated. At this time, the fertilizer application device 5
Start the operation before the planting section 4, so that the fertilizer fed from the feeders 31,... Has moved to the vicinity of the fertilizer hoppers 32,. The fertilizer is applied to the hopper 3 with the operation of the attachment 4
It is supplied to the field from the fertilizer ports of 2,. Also,
When the operating lever 70 is raised, the planting section 4 is raised, and the fertilizer 5 and the planting section 4 are sequentially stopped. Also in this case, the fertilizer application device 5 stops before the planting unit 4, so that the fertilizer application hopper 3 is almost at the same time as the planting unit 4 stops.
The supply of fertilizer from 2, ... stops. FIG. 10 shows a configuration different from the above-mentioned operation lever mounting portion. In this operation lever mounting portion, a hydraulic cam 90, a planting operation rod 91 and a fertilization operation rod 92 are mounted on a mounting shaft 71 of an operation lever 70. ing. Hydraulic cam 90
In the same manner as the planting cam 72C of the previous embodiment, the positioning recesses (1) to (3) are formed, and one end of a valve operation wire 78 for operating the hydraulic valve 28 is attached to an appropriate position. A hydraulic roller 95 that engages with the positioning recesses is mounted on a hydraulic arm 94 that is rotatably provided to face the hydraulic cam 90. The hydraulic arm 94 is urged toward the cam by a spring 96. At the lower end of the planting operation rod 91, a support pin 100 is provided horizontally, and the support pin is loosely fitted in the long hole 102 of the planting operation plate 101. The planting operation plate 101 is supported by a support pin 104 that loosely fits into a long hole 103 different from the long support hole 100 and the long hole 102.
It can be moved back and forth by the length of 103. The planting operation plate 101 is long in the front-back direction, and its lower surface 105 has a front portion 105.
a is low and the rear part 105b is stepped high. Below the planting operation plate 101, there is provided a planting arm 108 which is rotatable up and down about a central shaft 106 and is urged upward by a spring 107. The planting operation plate is attached to the planting arm 108. Planting roller 10 in contact with lower surface 105 of base 101
9 and a planting clutch wire 63 a for operating the planting clutch pin 63. When the hydraulic roller 95 is engaged with the positioning concave portion of the hydraulic cam 90, the planting roller 109 contacts the rear lower surface 105 b of the planting arm 108, and the hydraulic roller 95 engages with the positioning concave portion of the hydraulic cam 90. During this operation, the planting roller 109 comes into contact with the front lower surface 105a of the planting arm 108. At the lower end of the fertilizer operating rod 92, a stop pin 11 is provided.
The fertilizer application operation plate 111 is supported by the stopper pin and the support pin 114 which is loosely fitted in the elongated hole 113 so as to be able to move back and forth by the length of the elongated hole 113. This fertilizer application operation plate 101 has a lower surface 1 similar to the planting operation plate 101.
A front part 115a and a rear part 115b having a step shape are formed at 15. Reference numeral 118 denotes a fertilization arm, which is provided rotatably up and down about a central axis 106 common to the planting arm 108 and is urged upward by a spring 117. The fertilizer application arm 118 is provided with a fertilizer application roller 119 that contacts the lower surface 115 of the fertilizer application operation plate 111 and an operation member 59 that operates the fertilizer application clutch pin 58. Hydraulic cam 9
When the hydraulic roller 95 is engaged with the positioning recesses 0 to 0, the hydraulic roller 119 is engaged with the rear lower surface 115b of the fertilizing arm 118, and the hydraulic roller 95 is engaged with the positioning recess of the hydraulic arm 90. When in operation, the hydraulic roller 119 engages the front lower surface 115b of the hydraulic arm 118. According to the lever position, the hydraulic valve 2
8 is switched, and the planting clutch 40A and the fertilizing clutch 40B are turned on / off. Also in the case of this embodiment, the relationship between the lever position and the planting clutch, fertilizing clutch and hydraulic valve is summarized in Tables 1 and 2, and when the planting section 4 is lowered, the fertilizing clutch 40B
Is turned on earlier than the planting clutch 40A, and when the planting part 4 is raised, the fertilizing clutch 40B is turned off before the planting clutch 40A.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a fertilizer rice transplanter that is an example of a seedling transplanter. FIG. 2 is a cross-sectional side view of a planting and fertilizing clutch case developed and shown. FIG. 3 is a rear view of the planting / fertilizing clutch case shown in FIG. 2; FIG. 4 is a rear view of an operation lever mounting portion. FIG. 5 is a view taken in the direction of arrows AA in FIG. 4; 6 is a view taken in the direction of arrows BB in FIG. 4; FIG. 7 is a view as seen from the arrow C in FIG. 4; FIG. 8 is a view as viewed in the direction of arrows DD in FIG. 4; FIG. 9 is a view as seen from an arrow E in FIG. 4; FIG. 10 is a perspective view of an operation lever attachment portion different from the operation lever attachment portion shown in FIGS. 3 to 9; FIG. 11 is a side sectional view of a main part of the fertilizer application device. [Explanation of Signs] 1 ... fertilizer rice planting machine (seedling planting machine), 2 ... this machine, 4 ... planting section, 5
... fertilizer application device, 9 ... cockpit, 31 ... feeder, 33 ... fertilizer hose, 40 ... planting and fertilizer clutch case, 45 ... input shaft

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Riki Seike             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department (72) Inventor Hisashi Kamiya             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department (72) Inventor Takashi Suzuki             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department F-term (reference) 2B052 BC05 BC09 BC16 DB06                 2B060 AA02 AC03 AD09 BA04 BA09                       BB06 CA04                 2B062 AA14 AB01 BA13

Claims (1)

Claims: 1. A planting portion 4 provided at a rear portion of a machine 2 which is a powered vehicle.
, And the feeder 31 of the fertilizer 5 is arranged behind the cockpit 9 of the machine 2 and in front of the planting section 4.
Is the planting section 4 from the feeder 31 via the fertilizing hose 33.
In the seedling transplanter configured to transfer the fertilizer to the fertilizer application port near the seedling planting position of the above, the power is transmitted to the planting section 4 via the input shaft 45 which is transmitted from the front to the rear from the cockpit 9 of the machine 2. A seedling transplanter that branches off from the input shaft 45 behind the center in front and rear of the cockpit 9 and is transmitted to the feeder 31 of the fertilizer application device 5.