JP2002046661A - Hand farming machine and hand seedling planting machine - Google Patents

Abstract

(57) [Summary] (With correction) [Problem] To facilitate work operation and prevent a worker from stepping on a work ridge during steering turning. SOLUTION: A handle 3 is provided behind a vehicle body 2 in which one of right and left wheels 1R is displaced outward and can be axially mounted, and an auxiliary handle 4 is provided behind the deviated wheel 1R. A configuration of a hand farm working machine characterized by the above-mentioned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand agricultural working machine and a hand seedling working machine, and is used as a working machine for performing seedling planting work, sowing work, and the like while traveling along a ridge.

[0002]

2. Description of the Related Art In ridge work, there is known a technique in which the distance between the right and left wheels (tread) of a working machine is adjusted so that each wheel is pressed against a groove between ridges.

[0003]

In the ridge work, ground work such as seedling planting and sowing is performed on the upper surface of the ridge. Therefore, in the case of a hand-type work machine provided with a protruding handle behind the vehicle body, It is easy for the operator to walk on the upper surface of the ridge, and therefore, when walking on the upper surface of the ridge is inconvenient, the operating posture is located on the side of the steering wheel because the operator walks in the groove on the lateral side. In some cases, it is difficult to supply seedlings.

[0004]

According to the first aspect of the present invention, a steering wheel 3 is provided at a rear side of a vehicle body 2 in which one of the right and left wheels 1R is deflected outward to enable axial mounting. The hand-held agricultural machine is characterized in that an auxiliary handle 4 is provided behind the eccentric wheel 1R.

According to a second aspect of the present invention, the handle 3
The left and right grips 5L and 5R have side clutch levers 6
L, 6R, and a grip 7 of the auxiliary handle 4.
Has a side clutch lever 6L for operating a side clutch of the opposite wheel 1L.

According to a third aspect of the present invention, a seedling supply device 10 that supplies seedlings to a seedling beak 9 that operates at a fixed position while rotating while receiving seedling supply from a seedling hopper 8 is provided. And a hand seedling working machine characterized in that it is provided so as to be movable. The invention according to claim 4 is a seedling supply device 10 that supplies seedlings to a seedling beak 9 that operates at a fixed position while rotating while receiving seedling supply to the seedling hopper 8, and is disposed outside the seedling supply device 10. Then, an auxiliary seedling supply device 12 having a seedling hopper 11 for inheriting and supplying seedlings to the seedling hopper 8 is provided, which constitutes a hand seedling planting machine.

[0007]

According to the first aspect of the present invention, the left and right wheels 1
When the distance between L and 1R is normal, the driver can operate the vehicle by operating the steering wheel 3. However, when the distance between the wheels 1L and 1R is widened by displacing the wheel 1R outward, the left steering wheel 3 is turned when turning right. The steering wheel can be steered by operating the auxiliary handle 4 of the wheel 1R deviated to the right side when turning left, and the turning operability can be easily performed by not stepping on the ridge surface. . Further, the configuration of the auxiliary handle 4 can be simplified.

According to the second aspect of the present invention, by operating the left and right side clutch levers 6L and 6R of the handle 3, the side clutches of the operating wheels 1L and 1R are disengaged, thereby turning left or right. Although it is possible to turn rightward, in the embodiment in which the auxiliary handle 4 is deviated rightward as described above, the left wheel 1L can be operated by operating the side clutch lever 6L of the grip portion 7.
Turn off the side clutch and turn left.
Operability can be improved.

According to a third aspect of the present invention, when a seedling planting operation is performed on the upper surface of the ridge, the operator operates the steering wheel while walking in the groove on either the left or right side of the ridge, and supplies the seedling. The plant 10 is replenished with seedlings. If the wheel 1L is moved laterally outward to increase the distance between the wheels 1L and 1R, or if the distance between the seedling placement position and the walking position is increased, the seedling supply device 10 is also moved to the same side as the wheel 1L. By doing so, the relative position between the handle operation position and the seedling supply device 10 is maintained constant, and an easy and accurate seedling supply operation to the seedling supply device 10 can be maintained.

According to a fourth aspect of the present invention, the seedling hopper 1 of the auxiliary seedling supply device 12 supplies the seedling while the operator operates the handle.
When the auxiliary seedling supply device 12 is supplied, the seedlings of each seedling hopper 11 are passed on to the seedling hopper 8 of the seedling supply device 10 and supplied by rotation of the auxiliary seedling supply device 12, and are planted on the ridge soil surface by the seedling planting beak 9. For this reason, by disposing the auxiliary seedling supply device 12 so as to be deviated to the outside of the seedling supply device 10,
It is possible to carry out the recruitment of seedlings widely, and in the seedling planting operation when the ridge width is wide, the handle operation and the replenishment of the seedlings can be easily performed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a hand working machine for grasping and operating a handle while walking, such as a seedling plant, a seeding machine, a management work machine, and the like. The working machine can be effectively implemented as a work form for planting and sowing seedlings on the upper surface of the ridge. Usually, in the ridge work, when the ridge width is wide and the worker does not step on the ridge upper surface as much as possible, the operation work posture becomes worse, and when replenishment of seedlings is required like a seedling planter, This replenishment posture is also worsened, and the degree of work fatigue is likely to be increased. However, in the present invention, workability is facilitated by adopting the following embodiment. The invention according to claim 1 has a handlebar 3 at the rear of a vehicle body 2 in which one of the left and right wheels 1R is deviated outward and can be axially mounted, and an auxiliary wheel is disposed behind the deviated wheel 1R. With the configuration of the hand-operated agricultural machine characterized by providing the handle 4, the auxiliary handle 4 is positioned outside the turn, and the turning operation is facilitated by minimizing stepping on the wide ridge upper surface as much as possible. It is. According to the second aspect of the present invention, the handle 3 is provided with side clutch levers 6L, 6R on the left and right grips 5L, 5R, and the grip 7 of the auxiliary handle 4 is provided with a side wheel 1L of the opposite wheel 1L. A side clutch lever 6L for operating the clutch is provided, and the side clutch lever 6L on the auxiliary handle 4 side is provided.
, The side clutch of the opposite wheel 1L is disengaged, so that the turning operation by the steering wheel can be further easily performed.

In this case, in a mode in which the left wheel 1L is deviated, the auxiliary handle 3 is provided so as to be located behind the left wheel 1L. According to the third aspect of the invention, when the hand working machine is a seedling planting machine, the seedlings are supplied to the seedling beak 9 that operates at a fixed position while being intermittently rotated while receiving seedling supply to the seedling hopper 8. A turntable 10 as an example of a seedling supply device is provided so as to be movable in a lateral movement direction of a wheel 1L, and has a configuration of a hand seedling working machine, wherein the turntable 10 is displaced by a wheel 1L. By moving to the same side as the moving side, it is easy for the operator to supply the seedlings to the turntable 10 while operating the handle.

According to the invention of claim 4, the seedling hopper 8
A turntable 10 which is an example of a seedling supply device which supplies seedlings to a seedling beak 9 which operates at a fixed position while intermittently rotating after receiving supply of seedlings, and a seedling hopper 8 arranged outside the turntable 10. Seedling hopper 1
1 is provided with an auxiliary turntable 12, which is an example of an auxiliary seedling supply device having a handle 1. The hand seedling planting machine has a configuration in which the turntable 10 and the handle position are separated. In a state where it is difficult to replenish the seedlings from the position, by replenishing the seedling hopper 11 of the auxiliary turntable 12 between them, the replenishment of the seedlings can be easily performed while operating the handle, and the ridge width can be reduced. Operability can be further improved even in a wide case.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in more detail with reference to the drawings. The first embodiment is shown in FIGS. The second embodiment mainly appears in FIG.

[0015]

First Embodiment A first embodiment will be described with reference to FIGS. An axle housing 16 is provided on both left and right sides of the vehicle body 2.
A drive wheel 1 is mounted on a wheel transmission case 44 which can be turned up and down around the front wheel, and a front wheel 13 is disposed in front of the drive wheel 1. The vehicle can travel by transmitting the drive wheels 1 by an engine 48 mounted on a front portion of the vehicle body 2. A handle 3 is provided at the rear of the vehicle body 2, a seedling mounting table 14 is provided at an upper part, and a seedling linking mechanism 15 having a planting beak 9 at the rear end is provided. 10 are provided. By transmitting the seedling link mechanism 15 from the engine 48, the seedling from the turntable 10 is received at the upper position while the planting beak 9 is raised and lowered, and the seedling is transmitted to the soil surface A on the ridge at the lower position. A seed hole is formed and a seedling is planted.

Reference numeral 17 denotes a pitching cylinder for moving the drive wheel 1 up and down. Reference numeral 18 denotes a grounding sensor for detecting the height of the soil surface A. The height on A is maintained and controlled to be constant. Reference numeral 19 denotes a rolling cylinder, which controls the vehicle body 2 horizontally in the left and right direction in conjunction with an inclination sensor for detecting the left and right inclination of the vehicle body 2. Numeral 20 denotes a cultivation disk, which is cultivated at the root of the seedling planted on the soil surface A on the ridge to maintain the planting posture of the seedling.

Reference numeral 47 denotes a seesaw bar, which is rotatably supported at the tip of the pitching cylinder 17 and connects between the left and right ends and each wheel transmission case 44 by a link rod. Is provided. A large number of seedling hoppers 8 are arranged on the turntable 10, and the driver supplies the seedling hopper 8 with vegetable seedlings taken out from the seedling mounting table 14. This turntable 10
Turns intermittently at a constant angle every time the seedling link mechanism 15 is moved up and down so that each seedling hopper 8 faces the seedling receiving position of the planting beak 9.

The seedling link mechanism 15 is arranged so that a pair of front and rear crank arms 25 and 26 respectively swing up and down in a double crank form on transmission cases 22, 23 and 24 mounted at fixed positions on the vehicle body 2 side. The planting beak 9 is mounted between the rear ends of the crank arms 25 and 26. The front crank arm 25 is vertically swung by the rotation of the crankshaft 27. This base is connected to a swing arm 28. Also the rear crank arm 26
Is vertically swung by the rotation of the crankshaft 29. This base is connected to the swing arm 30.

A front-rear horizontal connecting link 31 is connected between the rear ends of the crank arms 25 and 26. As the crankshafts 27 and 29 rotate in the same direction, the crank arms 25 and 26 are swung up and down to connect the link 3
1 is raised and lowered while maintaining the horizontal posture. The connecting link 31
Connecting pins 32, 3 with crank arms 25, 26 at both ends
A pair of planting beaks 9 are mounted between the three, and can be pivoted back and forth.

The mechanism for opening and closing the planting beak 9 is constituted by a cam mechanism which rotates integrally with the crankshaft 29. By raising and lowering the crank arms 25 and 26,
At the upper part, the planting beak 9 is closed to accommodate and support the seedlings.
In the lower part, a planting hole is formed by rushing into the soil surface A, and is opened back and forth, and the contained seedling is dropped and planted in the planting hole. D is a planting trajectory line indicating an operating locus of the lower end of the planting beak 9.

The planting beak 9 is formed in a conical shape having a larger upper end diameter and a smaller lower end side, and has a flat beak shape near the lower end opening. The lower surface of the seedbed of the seedling dropped from the seedling hopper 8 is supported in the planting beak 9 and can be transported to the planting hole. The support structure of the drive wheel 1 is an arrangement in which the right wheel transmission case 44 is largely offset (displaced) with respect to the vehicle body 2. The left and right wheel transmission cases 44 have their front end bases fitted in an axle bracket 45 in the form of a tube, and are supported so as to be vertically rotatable and horizontally slidable. Body 2 and left and right wheel transmission cases 44
An actuator 34 in the form of a telescopic cylinder is provided between them, and the offset and the position of the wheel transmission case 44 can be changed and adjusted by performing telescopic control with hydraulic pressure or the like.
Alternatively, the left wheel transmission case 44 may be in a fixed form in which the left and right wheel transmission cases 44 cannot move left and right.

The left and right driving wheels 1 are located outside the respective wheel transmission cases 44, and are mounted on the rear end of the vehicle by axles 35.
It is driven and rotated from the vehicle body 2 through the axle housing 16 and the transmission mechanism in the wheel transmission case 44. The front wheel 13 is also provided so as to be able to move up and down and left and right similarly to the drive wheel 1, and can rotate and run at substantially the same phase position. The axle bracket 45 is connected to the lower part of the vehicle body 2 by the pivot shaft 36.
The base 39 of a T-shaped socket 38 is provided in the socket portions 37 at both left and right ends so as to be able to move left and right and rotate F. Reference numeral 40 denotes this set pin. The front wheel 13 is attached to the shaft 41 at the socket 38 at the tip.
A support rod 42, which is rotatably mounted around the shaft, is inserted therethrough so that the vertical movement G can be adjusted. 43 is this set pin. Thus, the support arm 7 is constituted by the socket 38 and the support rod 42. The support rod 42 can be configured to be rotatable to the right and left with respect to the socket 38 as appropriate.

The support arm 46 pivots around the socket 37 of the axle bracket 45 to move the front wheel 13 between the upper front and lower rear portions to adjust the height of the front wheel 13. be able to. In this adjustment mode, since the front wheel 13 can move forward and backward, it is effective when changing the interval between the front drive wheel 1 and the rear drive wheel 1. Further, in a mode in which the support rod 42 is moved up and down with respect to the socket 38, the front-rear position of the front wheel 13 does not change.

When planting seedlings on the ridge soil surface A,
With the planting beak 9 facing the soil surface A on the furrow, the drive wheel 1
And the front wheel 13 is pressed against the groove B between the ridges. Drive wheel 1,
Then, the front wheel 13 is moved right and left and up and down so as to approach the lower end of the ridge slope C so that the bottom surface of the groove B is pressed.

In this way, the vehicle body 2 is steered and guided in the direction along the ridges by the left and right drive wheels 1 and the front wheels 13 being propelled so as to sandwich the ridge slopes C on both sides of the working ridge. In addition, the working position for planting seedlings by the planting beak 9 can be kept constant. In the embodiment shown in FIG.
And the front wheel 13 and the like are offset to the right side, so that when the same ridge is planted in a reciprocating stroke, the soil surface A on the ridge
Can be planted in two rows.

The handle 3 is disposed immediately behind the seedling plant 9 and the turntable 10 so as to form a left-right bifurcated form.
By protruding the L and 5R, when working in a place where the ridge width is relatively narrow, while walking along the groove B on the left or right side of the ridge A, hold the left grip 5L or hold the right grip. Work can be performed while operating the handle 3 with the 5R. The steering clutch operation at this time is performed by operating the side clutch levers 6L and 6R provided on the grip portions 5L and 5R. The interlocking of the side clutch levers 6L, 6R is performed by wire-coupling a steering side clutch (not shown) provided in a transmission mechanism to the driving wheels 1L, 1R, and the side clutch of the gripping side side clutch lever 6L, 6R. Is cut off,
Steering turning in this turning direction can be performed.

On the right side of the handle 3, the wheel 1R
The auxiliary handle 4 is detachably provided at the rear side of the wheel 1 </ b> R on the side that is largely displaced. The grip portion 7 is provided with a side clutch lever 6L for operating the left side clutch, and the left wheel can be operated regardless of which side clutch lever 6L is operated together with the side clutch lever 6L in the grip portion 5L of the handle 3. 1L side clutch can be disengaged.

By providing such an auxiliary handle 4 and the side clutch lever 6L of the gripping portion 7, when working with a wide ridge width and the right driving wheel 1R largely deviated outward, the auxiliary handle is used. The work can be performed while walking along the groove on the side of No. 4, but in particular, when turning and steering to the left, it is possible to hold the grip 7 on the right and turn while operating the side clutch lever 6 </ b> L. The grip portion 7 located on the outer peripheral portion of the vehicle body 2 that is turned F around the left wheel 1L as a center can be easily operated by walking along the outer groove B portion, and the soil surface on the ridge A
Can be reduced.

The intermittent drive of the turntable 10 is as follows.
Part of the swing arm 2 constituting the seedling link mechanism 15
The rotation arm 51 at the lower end of the table shaft 50 of the turntable 10 is interlocked with a link rod 49 connected to the upper end of the rotation arm 8, and the rotation arm 51 can be reciprocated by the swing of the swing arm 28. A ratchet claw 5 is provided at the tip of the rotating arm 51.
2 and 53, and the claw ring 54 can be intermittently rotated around the table shaft 50 in a fixed direction at a fixed angle.

In the illustrated example, the turntable 10 is a seedling hopper 8.
Are arranged at an octant angle, and the intermittent rotation is set as every eighth rotation. A seedling plant 9 is raised and lowered at a certain position below the turntable 10, and when ascending, the bottom of the seedling hopper 8 at the opposite position is opened, and the stored seedlings are dropped into the seedling 9 and supplied. The other bottom of the seedling hopper 8 is kept closed.

The turntable 10 can be set to move left and right. The operator normally grips the left grip 5L of the steering wheel 3 to operate the steering wheel, so that the left wheel 1
The seedlings to be taken out from the seedling mounting table 14 are supplied to each seedling hopper 8 of the turntable 10 while walking in the groove B portion behind L. If the distance between the left wheel 1L and the turntable 10 is increased by moving the left wheel 1L outward by a ridge width or the like, it becomes difficult to replenish the seedlings. In such a case, the support stay 55 supporting the turntable 10 is appropriately moved to the left side L with respect to the vehicle body 2 so that one of the turntables 10 is brought closer to the worker side to facilitate the seedling supply operation. . In this case, the turntable 10 is configured to be able to move around the seedling hopper 8 located on the seedling planting beak 9, so that the transfer of the seedling between the seedling hopper 8 and the seedling planting beak 9 is constant, A stable supply of seedlings can be maintained.

In such a drive mechanism of the turntable 10, the link rod 49 is positioned at a position related to the seedling beak 9.
In the case where is a hindrance (FIG. 9), the bent portion 56 may be formed in a U-shape so as to bypass the position of the seedling beak 9. When the vehicle body 2 tilts left and right, the rolling cylinder 19 is expanded and contracted by a hydraulic circuit, a geared motor or the like by detecting the tilt angle by a horizontal sensor 57 in the form of a pendulum, thereby moving the left wheel transmission case 44 up and down. The vehicle body 2 is controlled to be kept horizontally horizontally by rotating. By changing the mounting angle K between the pendulum 58 and the hydraulic control arm 59, the left-right horizontal posture of the vehicle body 2 can be changed to the left-right inclined posture. That is, the angle of the pendulum 58 can be changed by moving the guide rod 60 attached to the pendulum 58. The guide rod 60 has a guide groove 63 formed in a control arm 59 attached to a control valve shaft 62 for rolling control, and a guide pin 64 at the upper end of the guide rod 60 is fitted and guided in the guide groove 63. When the guide rod 60 inserted into the pendulum 58 moves along the guide groove 63 of the control arm 59,
The relative angle between the pendulum 58 and the control arm 59 can be changed. The guide pin 64 may be provided with a roller so that the guide pin 64 can move smoothly.

A wire 65 is connected to the guide pin 64, and is connected to an inclination adjusting lever for determining a left-right inclination angle of the vehicle body 2. The shape of the guide groove 63 is formed in a curved shape such that the angle of the control arm 59 becomes substantially constant with respect to the movement amount of the guide rod 60, and the response of the rolling control for maintaining the left-right inclined posture is achieved. It is configured to be constant at any position with respect to the operation of the tilt angle adjusting lever.

Further, a resin bush 61 is provided at a sliding portion between the pendulum 58 and the guide rod 60 in order to eliminate the backlash of the guide rod 60 with respect to the pendulum 58 and maintain a smooth movement. 66 is a spring for resiliently pushing the guide rod 60 downward. A stopper mechanism is provided between the control arm 59 and the control case 67 to absorb the vibration inertia caused by the left and right swing of the pendulum 58. 6
Reference numeral 8 denotes a stopper bolt provided on a bolt stay 69 of the control valve case 67. The stopper bolt has a shock absorber made of rubber or the like at its tip, and can shock a stopper 70 formed on the control arm 59. Reference numeral 71 denotes a stopper bolt provided on the control arm 59, which has a shock absorber made of rubber or the like at the tip and can collide with the stopper 72 of the control valve case 67.

[0035]

Second Embodiment Differences from the above example will be described mainly with reference to FIG. In order for the left wheel 13 to be largely moved outward, for example, the seedling cup 8 of the seedling N by an operator is set.
If it becomes difficult to replenish the table, the replenishment turntable 12 is provided on the grip portion 5L side of the support stay 55 of the turntable 10, and these table shafts 50, 73 are provided.
The interval is intermittently rotated in conjunction with the chain 74. A shutter is provided at the bottom of each seedling cup 11 of the auxiliary turntable 12, and a seedling cup 8 of the turntable 10 is provided.
When the shutter is opened, the seedlings N in the seedling cup 11 fall into the seedling cup 8 of the turntable 10 and are successively supplied. The seedling supply to the seedling plant 9 is performed from the seedling cup 8.

As described above, the supply of the seedling N to the seedling cup 11 of the turntable 10 and the auxiliary turntable 12 provided so as to be deviated from the seedling planting beak 9 to the side of the holding portion 5L is performed by the worker. Because it is close, it is easily done in a comfortable posture.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment.

FIG. 2 is a side view thereof.

FIG. 3 is a perspective view of the front wheel portion.

FIG. 4 is a plan view of the turntable unit and a side view of a part thereof.

FIG. 5 is a perspective view of the turntable support.

FIG. 6 is a front view of the horizontal sensor unit.

FIG. 7 is a right side view thereof.

FIG. 8 is a left side view thereof.

FIG. 9 is a plan view showing another embodiment of the present invention;

FIG. 10 is a perspective view of a tene table portion showing the second embodiment.

[Explanation of symbols]

 Reference Signs List 1 (1L, 1R) Wheel 2 Body 3 Handle 4 Auxiliary handle 5 (5L, 5R) Gripping part 6 (6L, 6R) Side clutch lever 7 Gripping part 8 Seedling hopper 9 Seedling beak 10 Turntable 11 Seedling hopper 12 Auxiliary tin table

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) A01C 11/02 334 A01C 11/02 334D 3J070 360 360 360Z B62B 3/00 G05G 1/08 A G05G 1/08 11 / 00 11/00 B62B 3/00 GE (72) Inventor Yoshihiko Okubo 1, Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Agricultural Machinery Co., Ltd.Technical Department (72) Inventor Norihiro Uejima 1 Eighth Town, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. F term (reference) in Iseki Works 2B060 AD04 AE01 BA03 CA03 CA09 CB05 CC05 2B062 AA02 AB04 BA11 BA22 2B063 A A02 AB02 AB08 BA07 BA30 2B064 AB07 EB08 EB11 EB16 3D050 AA12 AA14 BB01 BB21 DD01 EE08 EE15 FF04 GG06 HH06 KK03 KK13 3J070 AA13 CA43 EA21

Claims (4)

[Claims] 1. A steering wheel 3 is provided at the rear of a vehicle body 2 which allows one of the left and right wheels 1R to be displaced outward and mounted on an axis, and an auxiliary handle 4 is provided at the rear of the deviated wheel 1R. A hand-held agricultural machine. 2. The handle 3 has left and right grips 5L,
The side clutch levers (6L, 6R) are provided on the 5R, and the side clutch lever (6L) for operating the side clutch of the opposite wheel (1L) is provided on the grip portion (7) of the auxiliary handle (4). Hand farm work machine. 3. A seedling supply device 10 for supplying seedlings to a seedling beak 9 that operates at a fixed position while rotating while receiving supply of seedlings from a seedling hopper 8 is provided so as to be movable in the lateral movement direction of the wheel 1L. A hand seedling planter. 4. A seedling supply device 10 for supplying seedlings to a seedling beak 9 that operates at a fixed position while rotating while receiving supply of seedlings from a seedling hopper 8, and the seedlings disposed outside the seedling supply device 10. A hand seedling planting machine, comprising an auxiliary seedling supply device 12 having a seedling hopper 11 for transferring and supplying seedlings to a hopper 8.