JPH0445451Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is a mobile working machine that can be used as a rice transplanter.
The present invention relates to a mobile work machine-mounted type flooded direct sowing machine that is removably equipped with a sowing device.

(Prior art) Conventional rice cultivation involves transplanting seedlings grown in a nursery into paddy fields, and examples of rice transplanters that perform this rice transplanting work include, for example, Japanese Utility Model Application Publication No. 1983-121979;
The method described in Japanese Utility Model Application Publication No. 115754/1983 is known.

On the other hand, in recent years, direct flooding technology has been developed to sow paddy directly into paddy fields. For example, there is a flooded direct sowing machine that performs this flooded direct sowing, as described in the specification and drawings of Utility Model Application No. 59-58952, and this flooded direct sowing machine has a unique mobile body and a power transmission mechanism to the seeding device. It has become a dedicated machine.

(Problems that the invention aims to solve) As described above, rice cultivation is changing from the seedling raising method to the direct sowing method, but farmers already own rice transplanters and are disposing of usable rice transplanters. Purchasing a dedicated direct sowing machine is extremely uneconomical, and a seedling raising method may also be used.

This problem can be solved by considering the rice transplanter as a type of mobile working machine without performing rice planting work, and by detachably attaching the sowing device to the mobile working machine, thereby constructing a flooded direct sowing machine. It becomes possible to solve it.

However, in this case, the driving force for the feed roll of the seeding device is extracted from the swinging member of the actuation mechanism that operates the planting claws in the rice transplanter, so that the power transmission system can be manufactured at low cost. The feed roll must have a rotational motion,
Moreover, the feeding grooves are formed on the surface of the feeding roll at equal intervals in the circumferential direction, and it is newly required to configure the power transmission system so that the seed rice is sown from the feeding grooves of the feeding roll at accurate intervals. .

(Means for solving the problem) The present invention provides a mobile working machine 11 that can be used as a rice transplanter.
A sowing device 8 is removably attached to the machine frame 6, and a swinging member 1 for operating the planting claw 20 of the mobile working machine 11 is attached.
7 and the seeding roll shaft 37, an intermittent feeding mechanism 51 is provided.
is provided, and the intermittent feed mechanism 51 converts the swinging of the swinging member 17 into intermittent rotational movement in one direction,
By configuring the feeder to be fed intermittently in integer multiples of the number of feed grooves 40, the above-mentioned problems can be solved and new requirements can be met.

That is, the specific structure of the problem-solving means of the present invention is characterized by a mobile body 4 having drive wheels 2 and a transmission case 13 to which power is transmitted from the mobile body 4. A machine frame 6 connected to the machine frame 6 and a float 7 that supports this machine frame 6
and a swinging member 1 pivotally supported by the transmission case 13.
7, and the swinging member 1 is powered by the movable body 4.
7 is provided with an operating mechanism 21 that swings back and forth, a seeding device 8 and a seeding float 9 are removably attached to the machine frame 6, and planting claws 20 are provided on the swinging member 17, so that it can be used as a rice transplanter. In the mobile working machine configured as shown in FIG. An intermittent feeding mechanism 51 is provided, and the number of times the intermittent feeding mechanism 51 feeds each rotation of the feeding roll 361 is set to an integral multiple of the number of feeding grooves 40 of the feeding roll 36.

(Function) By traveling the mobile body 4, the rear part of the mobile work machine 11 and the seeding device 8 mounted on the rear thereof are supported by the float 7 and the seeding float 9 and travel on the mud surface in the rice field. Power from the mobile body 4 drives the working mechanism 21 via the transmission case 13. The actuating mechanism 21 is for causing the planting claws 20 to perform a substantially elliptical planting movement when the mobile work machine 11 is used as a rice transplanter.
The swinging member 17 providing the zero performs a swinging motion centering on the rear upper part of the transmission case 13. This swinging member 17
The movement is carried out by the roll shaft 35 via the intermittent feed mechanism
It is transmitted to the feed roll 36 provided in the. The swinging motion of the swinging member 17 is converted into forward and reverse rotational motion of the ratchet wheel 54 through the connecting member 65, and the ratchet wheel 54 rotates the casing 53 in one direction through the pawl 56 only during forward rotation. , the roll shaft 35 is intermittently rotated in the position direction. The number of teeth of the ratchet wheel 54 is set to an integral multiple of the number of feeding grooves 40 of the feeding roll 36, and when the feeding roll 36 stops intermittently, the number of teeth of the feeding groove 40
reaches the optimum position for feeding out the seed rice.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In Fig. 3 showing the whole, the flooded direct sowing machine 1
1 shows a riding type vehicle, which includes a mobile body 4 having drive wheels 2 and steering drive wheels 3, a machine frame 6 connected to the rear of the mobile body 4 via a link mechanism 5 so as to be vertically movable; a float 7 that supports the machine frame 6;
a seeding device 8 detachably attached to the machine frame 6;
It is equipped with a seeding float 9 and a fertilization device 10.

The machine frame 6 has a gear case 12 and a transmission case 13 at the rear thereof. A transmission shaft 15 is connected to the gear case 12 in order to receive power from the engine 14 of the mobile body 4, and the power is transmitted to the transmission case 1.
3 has also been transmitted.

A seedling stand 16 is attached to the machine frame 6 via various supporting members.
is supported so that it can slide left and right, and the gear case 12
It slides with power from. In addition, transmission case 1
The upper part of a substantially L-shaped swinging member 17 is pivotally supported at the rear upper part of 3 via a pivot shaft 18, and the end of a crankshaft 19 protruding from the transmission case 13 is connected to the front part of the swinging member 17 so as to be relatively rotatable. , and a planted nail 20 is provided. The swinging member 17 and the crankshaft 1
9 or the like constitutes an operating mechanism 21 for causing the tip of the planting claw 20 to make a substantially elliptical seedling planting movement, and the swinging member 17 makes a swinging movement about a pivot 18.

That is, the mobile body 4, the link mechanism 5, the machine frame 6, the float 7, the seedling stand 16, and the gear case 1.
2. The transmission case 13, the operating mechanism 21, the planting claws 20, etc. are the same as those of the conventional riding rice transplanter, and constitute the mobile work machine 11.
1 can be used as a rice transplanter as it is by removing the seeding device 8, fertilizing device 10, etc. In other words, the seeding device 8 is added to the conventional rice transplanter.
The submerged direct sowing machine 1 is constructed by detachably attaching devices necessary for submerged direct sowing, such as the fertilization device 10 and the like.

Since a conventional rice transplanter is used as is, the seedling platform 16, planting claws 20, etc. may remain attached, but since they are completely unnecessary for direct sowing, they may be removed. Further, as the mobile working machine, a traveling rice transplanter disclosed in Japanese Utility Model Application Publication No. 60-121979 or the like may be applied.

1 to 5, the transmission case 13 (or other members) of the machine frame 6 includes an upper support member 2.
3. The lower support member 24 and the inclined support member 25 provided between their tips are fixed, and a tool bar 27 is provided in the middle of the inclined support member 25 via a bracket 26, and this tool bar 27 has one or more parts. A plurality of seeding devices 8 are supported, a fertilizing device 10 is supported on the upper part of the inclined support member 25 via a bracket 28, and a seeding float 9 is connected to the tip of the lower support member 24 via a parallel link mechanism 29. There is.

The seeding device 8 can sow seeds in two places using two or a chute 30, two fertilizing devices 10 are arranged for one seeding device 8, and a chute 30a, 30b is installed in each of the two or two chute 30. Fertilize through. The number of fertilizer application devices 10 may be halved by using two or a chute. The seeding device 8 and the fertilizing device 10 can also be used independently by being attached to the machine frame 6. In addition, the seeding device 8 is equipped with fertilizer and
You may also use a type that feeds out the seed rice at the same time.

The seeding device 8 is attached to the tool bar 27 via a mounting bracket 32, a tank 34 is attached to the upper part of the feeding case 33, and the two-pronged chute 30 is connected to the lower part.

Reference numeral 35 denotes a roll shaft supported by the feeding case 33. A grooved roll 37 of the feeding roll 36 is fixed to this roll shaft 35, and a gear rotating body 38 is screwed into the threaded cylinder portion 37a of this grooved roll 37. An adjusting rod roll 39 is fitted to the rotating body 38 so as to be relatively freely connected, and the adjusting rod 39a of the adjusting rod roll 39 enters the groove of the groove roll 37 to determine the width of the feeding groove 40.

A gear 42 provided on a cylindrical shaft 41 meshes with the gear rotating body 38 , and the cylindrical shaft 41 is loosely fitted onto a shaft 43 and has a dial 44 at its outer end. By rotating 44, the width of the feeding groove 40 is adjusted and the amount of sowing is adjusted.

Reference numeral 45 denotes a brush that is in sliding contact with the outer circumferential surface of the feed roll 36, and its forward and backward position relative to the feed roll 36 can be adjusted by operating a lever 46.

A one-way intermittent feed mechanism 51 is provided between the outer end of the roll shaft 35 and the swinging member 17.
52 is a ratchet device provided on the roll shaft 35, and the casing 53 is fixed to the roll shaft 35.
A pair of left and right rotating bodies 55 each having a ratchet wheel 54 are disposed therein, and the pawl 5 is pivotally supported on the casing 53.
6 is engaged with the ridge 54a of the ratchet wheel 54. Claw 56
is pressed toward the ratchet wheel 54 by a spring 57, allowing the ratchet wheel 54 to rotate in the direction of arrow A, but preventing rotation in the opposite direction.

A supporting member 58 is attached to the feeding case 33 and supports the protruding portion of the roll shaft 35 via a bearing.

Although the ratchet wheel 54 is bolted to the rotary body 55, it may be formed integrally, and each of the left and right rotary bodies 55 is supported by the roll shaft 37 via a bearing 59, with a connection projecting radially outward. It has an arm 60. The left and right connecting arms 60 are connected to the swinging member 17.

A support stand 63 is attached to the rear upper part of the swinging member 17 via a mounting stand 62, and this support stand 63 is arranged across the axis of the pivot shaft 18, and has two long supports at positions equidistant from the axis. It has a hole 64.

Reference numeral 65 denotes a connecting member that connects the left and right connecting arms 60 and the support base 63. A turnbuckle 66 for length adjustment is provided in the middle of the connecting member, and both ends of the connecting member 65 connect the connecting arm 60 through tie rod ends 67 and 68. The tip is connected to the elongated hole 64 of the support base 63. Tie rod end 6 penetrating through long hole 64
A position adjustment member 69 is fitted into the pin 68a of No. 8, and by moving this position adjustment member 69 with respect to the support base 63, the position of the pin 68a is adjusted within the elongated hole 64, and the position of the pin 68a from the pivot 18 is adjusted. Distance is changed.

When the rear upper part of the swinging member 17 swings back and forth about the pivot 18, it pushes and pulls the two connecting members 65 in opposite directions, causing the rotating body 55 and ratchet wheel 54 to rotate forward and backward by a certain angle. When the ratchet wheel 54 rotates in the direction of arrow A, it rotates relative to the casing 53, and when it rotates in the opposite direction of arrow B, the relative rotation is prevented by the pawl 55, causing the casing 53 to rotate integrally. Therefore, the pulling action of one connecting member 65 rotates the casing 53 by a certain angle, and during the pushing action of the connecting member 65, the other connecting member 65 pulls and rotates the casing 53 again by a certain angle, and then stops. Intermittent motion in one direction with almost no time is given to the feed roll 36.

One rotation angle of the casing 53 is an angle corresponding to the pitch of one or two ridges of the ratchet wheel 54, and the number of ridges 54a of the ratchet wheel 54 is set to an integral multiple of the number of 40 feeding grooves of the feeding roll 36. The structure is such that even if the casing 53 rotates intermittently, the stop position of the feed groove 40 is always at the optimum position for dropping the seed rice. That is, although the rotation angle of the ratchet wheel 54 may be any number of times, the number of feeds per rotation of the feed roll 36 is set to an integral multiple of the number of feed grooves 40, so that the seed rice always falls from the feed grooves 40 under the same conditions. I'm starting to do that.

The intermittent feed mechanism 51 is constructed by providing a ratchet device 52 with a pair of left and right ratchet wheels 54 and a pawl 56, but it is constructed with only one of the left and right ratchets 52, and the swinging member 17
The feed roll 36 may be rotated only when it swings in one direction, and instead of the ratchet device 52, a one-way clutch used in bearings or the like may be used, and the connecting member 65 may be connected to the outer ring of the one-way clutch. It can also be configured as follows. Furthermore, the connecting member 65
It does not have to be a rod, as long as the swinging motion of the swinging member 17 can be transmitted to the member that performs intermittent feeding.

Reference numeral 71 denotes a shutter mechanism of the two-pronged chute 30, in which a support shaft 72 is provided between the tips of the two-pronged chute 30, a boss portion of a shutter member 73 is loosely fitted onto this support shaft 72, and an arm protrudes from the boss portion. 74 and a bracket 75 fixed to the swinging member 17 are connected by a link 76.

The shutter member 73 is connected to the shutters 30a, 30
It is inserted inward from the tip of b, and chute 3
The tips of 0a and 30b can be opened and closed freely, and the link 76 and arm 7 are opened and closed by the swinging of the swinging member 17.
4, the feed roll 36
After once receiving the seed rice fed out, it is possible to sow seeds at regular intervals, and has the function of increasing sowing accuracy.

(Effect of the invention) According to the invention detailed above, the roll shaft 35 provided with the feed roll 36 of the seeding device 8 and the swinging member 1
The reciprocating swing of the swinging member 17 is performed between the roll shaft 3 and the roll shaft 3.
Intermittent feed mechanism 51 that converts to unidirectional intermittent rotation of 5
The feeding roll 36 of this intermittent feeding mechanism 51 is provided with
Since the number of feeds per rotation is set to an integral multiple of the number of feeding grooves 40 of the feeding roll 36, the swinging member 1
Even if the roll 7 swings back and forth, the delivery roll 36
can be intermittently rotated in one direction, and compared to the case where the feed roll 36 rotates back and forth, seed rice can be sown more accurately without damaging the seed rice.
When the feed roll 36 stops for each swing of
The feeding groove 40 can be stopped at the optimal position for feeding out the rice seeds, and the amount of sowing can be made accurate.

[Detailed description of the invention] The drawings show an embodiment of the invention, in which Fig. 1 is a side view of the main part, Fig. 2 is a partially sectional rear view of the main part,
3 is an overall side view, FIG. 4 is a partially sectional side view of the intermittent feed mechanism, and FIG. 5 is a sectional view taken along the line -- in FIG. 4.

DESCRIPTION OF SYMBOLS 1... Reservoir direct seeding machine, 4... Mobile body, 6... Machine frame, 7... Float, 8... Seeding device, 9... Seeding float, 10... Fertilizer application device, 13... Transmission case, 17 ...Swinging member, 18... Pivot, 20...
... Planting claw, 21 ... Actuation mechanism, 35 ... Roll shaft, 36 ... Payout roll, 40 ... Payout groove, 5
1...Intermittent feed mechanism, 60...Connection arm, 65
...Connection member.

Claims (1)

[Claims for Utility Model Registration] A mobile body 4 having drive wheels 2, a machine frame 6 connected to the mobile body 4 with a transmission case 13 to which power is transmitted from the mobile body 4, and this machine. A float 7 that supports the frame 6 and the transmission case 13
The movable body 4 has a swinging member 17 pivotally supported by the
A sowing device 8 and a seeding float 9 are removably attached to the machine frame 6, and a planting claw 20 is attached to the swinging member 17. In a mobile working machine configured to be able to be used as a rice transplanter, the reciprocating swing of the swinging member 17 is controlled between the swinging member 17 and the roll shaft 35 on which the feed roll 36 of the seeding device 8 is provided. A movement characterized in that an intermittent feeding mechanism 51 that converts to one-way intermittent rotation is provided, and the number of feeds per rotation of the feeding roll 361 of the intermittent feeding mechanism 51 is set to an integral multiple of the number of feeding grooves 40 of the feeding roll 36. Work equipment-mounted flooded direct seeding machine.