JPH1156019A - Paddy working machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the lateral size of devices for performing a sowing process of a direct sowing work machine. [MEANS FOR SOLVING PROBLEMS] An end of a plurality of hoppers 6 provided at a rear end of a traveling machine body 3. A part of the plurality of grounding floats 17 is configured to be freely foldable toward the inside of the machine by swinging around the axis in the vertical position, and one of the plurality of grounding floats 17 around the axis in the front and rear posture. By swinging, the outer end side is configured to be freely foldable so as to face upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground work device connected to the rear end of a traveling body so as to be able to move up and down, and a plurality of grounding floats are arranged laterally in parallel with the ground work device. A ground work device or a storage device having a landscape orientation at a rear end position of the traveling machine body, and a supply device for sending out the stored material of the storage device to a field in conjunction with traveling of the traveling machine body is provided with the ground work device. The present invention relates to an improvement of a paddy working machine configured to perform a plurality of ground work.

[0002]

2. Description of the Related Art Conventionally, as a paddy field working machine configured as described above, there is a direct sowing machine for sowing seeds in a field scene, and a direct sowing machine for sowing multiple rows is arranged in parallel in a horizontal direction. The arrangement dimensions of the plurality of ground contact floats are large, and the lateral dimension of a storage means such as a hopper for storing seed rice is large.

[0003]

However, since this type of working machine is mounted and moved on a truck bed, when the hopper has a large lateral dimension, the working machine is mounted on the truck bed. It cannot be mounted, or if it is mounted, it protrudes laterally from the carrier. or,
Similarly, even when the arrangement width of the grounding float is large, it becomes impossible to mount the work implement on the truck bed and there is room for improvement.

An object of the present invention is to rationally configure a paddy working machine capable of reducing the size in the width direction.

[0005]

According to a first feature of the present invention, as described at the outset, a ground working device is connected to a rear end of a traveling body so as to be able to move up and down freely, and the ground working device is connected to the ground. A plurality of grounding floats are horizontally arranged in parallel with the working device, and the ground working device or a storage device having a horizontally long attitude is provided at a rear end position of the running device, and the stored material of the storing device is moved by the running device. In a paddy field working machine configured to perform a plurality of ground work by providing a supply means for sending out to the field in conjunction with the field, the attitude of the end of the storage means is switched by the lateral direction of the storage means. It has a posture switching mechanism for reducing the amount of overhang, and its operation and effects are as follows.

A second feature (claim 2) of the present invention is that in claim 1, the storage means is constituted by a plurality of hoppers arranged in parallel in a lateral direction, and the attitude switching mechanism is provided with an end portion. The hopper at the end position is configured to change the lateral direction of the hopper at the end position in the front-rear direction by swinging of the swinging member that swingably supports around the axis in the vertical position, The operation and effect are as follows.

According to a third feature of the present invention, as described at the beginning, a ground working device is connected to the rear end of the traveling body so as to be able to move up and down, and a plurality of ground working devices are connected to the ground working device. The ground floats are arranged side by side in the horizontal direction, and the ground working device, or a storage means having a horizontally long attitude is provided at the rear end position of the traveling body, and the stored material of the storage means is linked to the traveling of the traveling body on the field. In a paddy working machine configured to perform a plurality of ground work by providing a supply means for sending out the ground float to the ground work device, the ground float is laterally extended by switching the posture of the end position of the ground float. It has a posture switching mechanism for reducing the amount, and its operation and effect are as follows.

According to a fourth feature of the present invention (claim 4), in accordance with claim 3, the attitude switching mechanism swingably supports the ground float at an end position so as to be able to swing around an axis in a front-back attitude. The configuration is such that the lateral outer end side of the grounding float at the end position is changed to the upwardly directed posture by swinging the member, and the operation and effect are as follows.

According to the first feature, by switching the attitude of the end of the storage means by the attitude switching mechanism, the amount of lateral protrusion of the storage means can be reduced.

According to the second feature, when the size of the storage means in the lateral direction is reduced, the hopper at the end of the plurality of hoppers constituting the storage means is swung around the longitudinal axis. By changing the posture so that the position of the outer end portion is in the front-rear direction of the body, the size in the lateral direction can be reduced.

According to the third feature, by switching the postures of the plurality of ground floats at the end positions to the posture switching mechanism, the amount of lateral protrusion of the ground floats can be reduced.

According to the fourth feature, when the arrangement size of the grounding floats in the horizontal width direction is reduced, one of the plurality of grounding floats at the end position is swung about the axis in the front-back posture. As a result, the outer end side of the ground float in the lateral direction is changed to the upward direction, and the arrangement dimension in the lateral width direction is reduced.

[Advantage of the Invention] Accordingly, a paddy working machine is provided which can reduce the size in the lateral width direction by reducing the amount of overhang of the storage means (claim 1). In particular, the size can be reduced rationally by a reasonable posture change of the hopper as the storage means (claim 2). Further, a paddy field working machine capable of reducing the dimension in the width direction by reducing the amount of protrusion of the grounding float is provided (claim 3). In particular, the size can be reduced rationally by a reasonable posture change of the grounding float (claim 4).

[0014]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2 (a) and 2 (b), a lifting cylinder 4 is driven by a lift cylinder 4 at the rear end of a riding type traveling machine body 3 having a pair of left and right front wheels 1 and rear wheels 2, respectively. A work unit A as a ground work device is supported in a freely rotatable manner around an axis X in a front-rear direction through a link mechanism 5 and four hoppers 6 as storage means provided at a rear end of the traveling machine body 3. Working part A
And a direct sowing machine for paddy rice which carries out the work of sending the rice under the field scene through the field.

In this direct sowing work machine, a transmission system for transmitting the power of the engine 7 mounted in the front hood of the traveling machine body 3 to the front transmission case 8 via a belt-type continuously variable transmission V is formed. The power from the front transmission case 8 is transmitted to the front wheels 1, the power from the front transmission case 8 is transmitted to the rear transmission case 10 via the intermediate shaft 9, and the power is transmitted from the rear transmission case 10. Is transmitted to the rear wheel 2. As shown in the figure, a steering handle 12 for steering the left and right front wheels 1 is disposed at a front position of a driving seat 11 of the traveling body 3, and the working unit A is raised and lowered at a right position of the driving seat 11. And a lifting lever 13 for controlling a work clutch C described later.

The working section A is connected to a supporting frame 15 in a laterally oriented state with respect to a connecting member 14 which is connected to the rear end of the link mechanism 5 in a freely rotatable manner, and extends rearward from the supporting frame 15. The ground floats 17 are connected to each other at positions at the rear ends of the plurality of arms 16 so as to be swingable around the axis P in the horizontal posture, and five ground floats 17 are arranged in a laterally parallel state. Further, by disposing a pair of groove forming devices 18 and 18 as a pair of supplying means for each of the grounding floats 17 and a covering plate 19 at a rear position of each of the groove forming devices 18 so that 10 seeds can be sowed. It is configured. The groove generator 18 is provided at the rear end position of the groove cutting plate 20 fixed to the ground float 17 so as to be able to adjust the vertical position, and the earth cover plate 19 is biased by a spring toward the lower side of the rear end side.

As shown in FIG. 2A, in this direct sowing work machine, one of the five grounding floats 17 which is located at the center position in the left-right direction has the center in the front-rear position with respect to the center in the left-right direction of the traveling body. On the line M, two grounding floats 17, 17 are arranged on both sides in a symmetrical relationship in the left-right direction, and the swinging posture of the grounding float 17 at this center position is measured. A sensor (not shown) for measuring the height of the work section with respect to the field is provided, and the lift cylinder 4 is driven so that the measurement result from this sensor is maintained at a target value. A control system is provided to maintain the height relative to the surface.

The working section A is configured so that the size of the working section A in the lateral direction can be shortened by switching to a posture in which the ground floats 17 at the left and right end positions are lifted upward. . That is, as shown in FIG. 5, the support frame 15 is composed of a first frame portion 15A at the center and second frame portions 15B and 15B on both sides, and the first and second frame portions 15A and 15B are respectively formed. They are connected via a link member L as a posture switching mechanism. The link member L is formed by pivotally connecting brackets 22, 22 connected to the first and second frame portions 15 </ b> A, 15 </ b> B, respectively, so as to be swingable about a swing shaft 23 in a front-back posture. By providing the buckle 24 for connecting and fixing the connection portions of the two frame portions 15A and 15B, the first and second frames 15A and 15B can be used at the time of work as shown by solid lines in FIG.
A and 15B are set to be in the horizontal position, and are connected and fixed by the buckle 24. When folded, the connection is released by the buckle 24 as shown by the imaginary line in FIG.
The posture is switched to a position in which the outer end of the second frame 15B is lifted upward.

As shown in FIGS. 2 to 4, the four hoppers 6 are arranged symmetrically to store three rows of seed rice in the center with respect to the center line M, and two rows outside the center. Are stored symmetrically with respect to the center line M. The hopper 6 is located at the lower position of each hopper 6.
The feeding mechanism 27 that feeds the seed rice downwards by a set amount from the hopper 6 is provided in a number corresponding to the number of strips of the hopper 6, and the seed rice fed by the feeding mechanism 27 is fed into the groove forming device 18. Supply hose 28 is provided,
The blower blower 3 driven by the electric motor 29 to supply an air flow for sending the seed rice to the supply hose 28.
0 is provided.

The feeding mechanism 27 includes a casing 27A.
Of the feed roll 27B rotating integrally with the rotating shaft 31 in the inside of the feed roll, the seed rice that has entered the plurality of recesses (not shown) formed on the outer periphery of the feed roll 27B is rotated and the lower funnel-shaped portion is rotated. It is configured to perform a feeding operation of dropping into the guide portion 27C, and a passive gear 32 that transmits a rotational force to the rotary shaft 31 is provided outside the casing 27A in a state of being externally fitted to the rotary shaft 31, and is engaged with the passive gear 32. The drive gear 33 is externally fitted and fixed to a drive shaft 34 supported on the rear surface of the casing 27A, and a pair of one-way clutches 35, 35 are provided at an intermediate portion of the drive shaft 34. A push-pull rod 39 pivotally connects a rotation arm 38 of a gear case 37 to which power synchronized with the traveling speed is transmitted from the front transmission case 8. On the front side of the casing 27A, a round-shaped blower pipe 40 into which the airflow is blown from the blower blower 30 is arranged in a state where the longitudinal direction thereof is along the machine body width direction, and branches off from the blower pipe 40. The supply path 41 formed in the front-rear position in the state is the feeding mechanism 27.
The discharge path 42 is set to be coaxial with the supply path 41 and communicates with the guide section 27C.
Is formed, and the supply hose 28 is
Are connected.

Inside the front transmission case 8, there is provided a work clutch C which can be switched between an engaged state for transmitting power to the gear case 37 and a disengaged state for shutting off. At the same time, by moving the body 3 with the blower blower 30 driven, the rotating arm 38 rotates at a speed synchronized with the traveling of the body 3, and this rotating force causes the push-pull rod 39 and the one-way clutch 35 to rotate. The drive shaft 24 is intermittently rotated in a predetermined direction through the drive gear 33, the passive gear 32, and the rotation shaft 31 to rotate the delivery roll 27B via each of the rotation shafts 31. A fixed amount of seed paddy is sent to the bottom of the field through the trencher 18.

The plurality of hoppers 6 are configured to be foldable toward both ends of the machine.
That is, the blower pipe 40 is located at the first position
The first pipe 40A is composed of a pipe 40A and second pipes 40B at both ends thereof.
4 is connected and supported via a columnar member 45, and a second pipe 40B is supported at both ends of the first pipe 40A via a link member L as a posture switching mechanism. The drive shaft 34 is composed of a first drive shaft 34A corresponding to the first pipe portion 40A and a second drive shaft 34B corresponding to the second pipe portion 40B. There is provided a connecting mechanism 47 composed of two members which can be switched between a connected state and a separated state by a structure. Further, the first pipe portion 40A is supported via a bracket 48 on a frame member 49 in a horizontally long posture which is connected and supported by a columnar member 45, and a pair of hoppers 6 at a central position are supported by the frame member 49. The left and right second pipe sections 4
The left and right hoppers 6 are supported by a frame member 49 in a horizontally long posture arranged at a position corresponding to each of the hoppers 6B. The link member L is formed by connecting the first shaft 51 of the first pipe portion 40A in the vertical position at the end to the second shaft 52 of the vertical position on the inner end side of the second pipe portion 40B in the middle portion in the vertical position. A pair of link pieces 5 as swing members connected by a third shaft 53
A buckle 55 is provided between the first pipe portion 40A and the second pipe portion 40B, and between the center position and the left and right frame members 49, 49 to maintain a connected state. ing.

With such a configuration, when reducing the size of the traveling machine body 3 in the horizontal direction, for example, by loading the direct sowing work machine on a truck bed or the like, the support frame 15 of the working unit A can be used. After the connection between the first and second frames 15A, 15B is separated by the operation of releasing the buckle 24, the outer ends of the left and right ground floats 17, 17 are lifted upward, as shown by phantom lines in FIG. Each ground float 1
7 and 17 are set to the storage postures, and the connection of the first and second pipes 40A and 40B of the blower pipe 40 and the connection of the frame members 49 and 49 at the center position and the left and right positions are performed by releasing the buckle 55. After the separation, the hoppers 6, 6 at the left and right ends and the feeding mechanism 27 are integrally moved in a parallel movement outward from the fuselage, and further, can be switched to the storage posture as shown in FIG. ing.

[Other Embodiments] In addition to the above embodiments, the present invention is configured such that, for example, the ground floats at both left and right end positions are slid inward while being lifted upward.
Alternatively, it is also possible to configure the attitude switching mechanism so that the storage is performed by swinging the hoppers at the left and right end positions toward the front side of the fuselage.

[Brief description of the drawings]

FIG. 1 is a side view of a direct sowing machine.

FIG. 2 is a plan view showing a state in which a ground float and a hopper are set to a working posture and a storage posture, respectively;

FIG. 3 is a rear view of the hopper with a partial cutaway.

FIG. 4 is a side view of the feeding mechanism.

FIG. 5 is a rear view showing a structure for switching a posture of a ground float at a side position.

[Explanation of symbols]

 Reference Signs List 3 traveling machine body 6 hopper 17 ground float 18 supply means 22 swing member 54 swing member A ground work machine L attitude switching mechanism

Claims (4)

[Claims] A ground work device is connected to the rear end of the traveling body so as to be able to move up and down freely, and a plurality of ground floats are arranged in parallel with the ground work device, and the ground work device or At the rear end position of the traveling body, a storage means having a horizontally long attitude is provided, and a plurality of ground work devices are provided with supply means for sending out the stored material of the storage means to the field in conjunction with the traveling of the traveling body by the ground work device. A paddy field working machine comprising a posture switching mechanism for reducing the amount of lateral extension of the storage means by switching the posture of the end of the storage means. 2. The storage means comprises a plurality of hoppers arranged in parallel in a horizontal direction, and the attitude switching mechanism allows the hopper at an end position to swing freely around an axis in a vertical attitude. The paddy working machine according to claim 1, wherein the lateral direction of the hopper at the end portion is changed in the front-rear direction by the swing of the swing member supported on the paddy field. 3. A ground work device is connected to the rear end of the traveling body so as to be able to move up and down, and a plurality of ground floats are arranged in parallel with the ground work device. At the rear end position of the traveling body, a storage means having a horizontally long attitude is provided, and a plurality of ground work devices are provided with supply means for sending out the stored material of the storage means to the field in conjunction with the traveling of the traveling body by the ground work device. A paddy field working machine comprising a posture switching mechanism for reducing the amount of lateral extension of the grounding float by switching the posture of an end position of the grounding float. 4. A laterally outward movement of the ground float at the end position by the swing of a swing member for supporting the ground float at the end position so as to be swingable around an axis in a front-rear posture. The paddy field working machine according to claim 3, wherein the end side is configured to change to a posture facing upward.