JPH0137083B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention mainly relates to a seed potato planting machine for planting taro seeds with their sprouts facing upward.

[Conventional technology]

Taro seed potatoes cannot be grown in good shape unless they are planted with their buds facing upwards. However, since most taro potatoes have a similar oval shape, it is difficult to plant them mechanically with the buds facing up. For this reason, planting taro seeds depended solely on human hands, and there were no practical machines available.

[Problem that the invention seeks to solve]

The present invention mechanizes the planting of taro seed potatoes,
This was done with the aim of improving the work efficiency.

[Means for Solving the Problems] The present invention provides a support that includes a rising portion that is inclined slightly rearward with respect to a vertical line, and a rearward extending portion that extends rearward substantially horizontally at the upper end of this rising portion. The frame is fixed to the machine frame, and a front pulley and a lower pulley are supported at the upper and lower ends of the rising part of the support frame, respectively, and a rear pulley is supported at the rear end of the rear extension, and a large number of transport plates are supported. In a seed potato planting machine having a structure in which belts with seed potatoes planted at equal intervals are hung around these pulleys, a recess is provided in the center of the conveying plate to prevent the seed potatoes from falling out and to maintain the posture. This conveying plate is placed forward and planted on the belt, and a cover is provided in the descending part between the front pulley and the lower pulley in close proximity to the conveying plate planted on the belt.
By positioning the lower end of the cover in front of the lower end of the lower pulley, bending the lower end of the cover to position it almost vertically, and providing a recess opposite to the recess provided in the conveyance plate in this vertically located part. A seed potato falling posture adjustment part for adjusting the falling posture of the seed potatoes is formed at the lower end of the cover, and a fall guide plate extending from the lower end of the cover to the bottom of the groove immediately after formation is arranged approximately perpendicular to or toward the rear of the lower end of the cover. The gist of this is that it is installed at an angle.

〔Example〕

Embodiments of the invention are illustrated in FIGS. 1-6.

An axle 4 is rotatably supported on the rear lower surface of the machine frame 2 via a pair of bearings 6, and wheels 8 are attached to both ends of the axle 4, respectively. A connecting rod 10 is provided at the front end of the machine frame 2, and the connecting rod 10 is inserted into a hook 12 provided at the rear of a towing vehicle (not shown) such as a walking tractor so as to be slidable in the vertical direction. and is fixed at a predetermined height.

The support frame 14 has three pulleys 16, 1 which will be described later.
8 and 20, and consists of a rising portion 14a that is inclined slightly rearward with respect to the vertical line, and a rearward extending portion 14b that extends rearward approximately horizontally at the upper end of this rising portion 14a. . A pair of support racks 14 are arranged parallel to each other and spaced apart from each other on the machine frame 2, and the lower end portions of the rising portions 14a are fixed to the machine frame 2. A lower pulley 16 is supported on the lower end of the rising portion 14a of the support rack 14, a front pulley 18 is supported on the upper end thereof, and a rear pulley 20 is further supported on the rear end of the rear extending portion 14b of the support rack 14. is supported. A belt 22 is hung around these three pulleys 16, 18, 20.

A large number of conveyor plates 24 are installed on the belt 22 at equal intervals. As shown in FIG. 6, this conveyor plate 24 is curved so that the upper surface becomes a concave surface, and a concave portion 24a along the running direction P of the belt 22 is provided in the center. 24 is installed on the belt 22 in a tilted forward state and inclined toward the advancing side of the belt 22. The recess 24a is for transporting the seed potatoes 26 in a stable posture and preventing them from falling out during transport.
The reason why the upper surface of 4 is made concave is that in the lowering part A of the front pulley 18 and the lower pulley 16,
The seed potatoes 26 placed on the conveyor plate 24 slide to the tip of the conveyor plate 24 to maintain a good falling posture. This is to allow the seed potatoes 26 to slide off the conveyance plate 24 smoothly.

Since it is necessary to plant the seed potatoes 26 with the sprouts facing upward, when placing the seed potatoes 26 in the recess 24a of the conveyance plate 24 in the horizontal running section B of the front pulley 18 and the rear pulley 20, It must be placed with the bud facing down.

Further, as shown in FIG. 7, a stop plate 24'b may be provided to stabilize the posture of the seed potatoes 26 placed on the conveyance plate 24'. This stop plate 24'b
is formed by extending only both sides of the rear side of the lower end of the conveying plate 24' and lifting it rearward, so that a notch 24'c is formed in the center of the stop plate 24'b. By positioning the grown sprouts of the seed potatoes 26 in the notches 24'c, damage to the sprouts of the seed potatoes 26 is prevented.

The chain gear 28 attached to the axle 4 and the lower pulley 1
A chain 32 is suspended between a chain gear 30 attached to a rotating shaft 29 of 6. As the towing vehicle travels, the wheels 8 rotate in the direction of arrow Q due to ground resistance.
The rotation of this wheel 8 is transmitted to the lower pulley 16 via the chain 32.
As a result, the belt 22 on which a large number of conveyor plates 24 are installed runs in the direction of arrow R.

The descending portion A and the horizontal running portion B of the belt 22 include
A side plate 34 is provided to cover both sides of the belt 22, and a descending portion A is provided from the folded portion of the front pulley 18.
A cover 36 is provided close to the conveyor plate 24 which is embedded in the belt 22 over almost the entire length of the belt 22 .

This cover 36 prevents the seed potatoes 26 placed on the conveyance plate 24 at the lower end A of the belt 22 from sliding forward, and also prevents the seed potatoes 26 placed on the conveyance plate 24 at the lower end of the cover 36 from sprouting. This is to help the person fall smoothly while facing up. The lower end of the cover 36 is located in front of the lower end of the lower pulley 16.

As shown in FIGS. 4, 5, and 8, the lower end of the cover 36 is bent in the opposite direction to the previous curved portion and is located approximately vertically. A recess 38 facing the recess 24a provided at the center of the conveyor plate 24 is formed in the transport plate 24. In this way, by locating the lower end of the cover 36 substantially vertically and providing the recess 38 in this substantially vertically located portion,
The cover 36 is a seed potato falling posture adjusting section 40 for adjusting the falling posture of the seed potato 26 with the bud facing up just before falling.
is formed at the lower end of the

Immediately before the seed potatoes 26 fall, the portion of the seed potatoes 26 that is sliding off the conveyance plate 24 facing the sprouts is inserted into the recess 38, so that the falling posture of the seed potatoes 26 is adjusted so that the sprouts are on top.

Further, as shown in FIGS. 3 to 5, the upper part of a support plate 42 having a large cutout in the center is fixed to the lower end of the cover 36, and the inside of this support plate 42 is fixed to the lower end of the cover 36. An elastic plate 44 which is flexible and has restoring force is attached to the. The upper part of the elastic plate 44 is fixed to the lower end of the cover 36, and the lower part is supported in contact with the lower end of the support plate 42. Therefore, the central portion of the elastic plate 44 can be deformed and restored. Elastic plate 44
A cutout 44a is provided in the lower half in the vertical direction to facilitate deformation.

This elastic plate 44 is for absorbing a light impact when the seed potatoes 26 fall from the seed potato falling attitude adjusting section 40 and for guiding the seed potatoes 26 to fall while maintaining the attitude with their sprouts facing up. It is. In this embodiment, the support plate 42 and the elastic plate 44 constitute a fall guide plate 46. This elastic plate 44 is the cover 3
It is attached to the lower end of 6 with a slight inclination toward the rear. The reason why the elastic plate 44 is attached to the lower end of the cover 36 in such a state is that the seed potatoes 26 are attached to the seed potato falling attitude adjustment part 4 in consideration of the traveling speed of the towing vehicle.
This is to keep the seed potatoes 26 in constant contact with the elastic plate 44 when falling from zero, thereby preventing the seed potatoes 26 from losing their falling posture with the sprouts facing up.

The groove cutting board 48 has a V shape for planting seed potatoes 26.
This is for forming a letter-shaped groove 50 (Fig. 12) on the soil surface.
It is inserted into and fixed to a support metal 54 provided in the. Furthermore, a pair of soil return rods 56 are attached to the rear of the groove cutting plate 48 for returning soil that has been shoved aside on both sides by forming the groove 50 with the groove cutting plate 48 into the groove 50.

The elastic plate 44 described above enters the center of the groove cutting plate 48 and faces into the groove 50 immediately after being formed, so that the seed potatoes 26 that have fallen into the groove 50 immediately after being formed are caught at the lower end of the elastic plate 44. Immediately after the seed potatoes 26 fall, the soil that has been shoveled on both sides of the groove 50 by the soil returning rods 56 is slightly returned to the groove 50, so that the seed potatoes 26 can be raised with their buds upward. It is fixed in the position.

In addition, seed boxes 60 for loading seed potatoes 26 are provided on both sides of the horizontal running portion B of the belt 22 via pillars 58 erected on the machine frame 2. Note that 50a in the figure indicates the bottom of the groove 50.

Next, the operation of the seed potato planting machine of the above embodiment will be explained with reference to FIGS. 8 to 11.

When the wheel 8 travels in the direction of arrow Q due to the running of the towing vehicle, the rotation of the wheel 8 is transmitted to the lower pulley 16 via the chain gear 28, chain 32, and chain gear 30, and the belt 22 travels in the direction of arrow R. In the horizontal running section B of the belt 22, the seed potatoes 26 loaded in the seed box 60 are placed in the recess 24a of the one-piece conveyance plate 24 with the buds facing down. Since the conveyor plate 24 is installed in a forward position on the belt 22, the tip of the conveyor plate 24 is located below the base end in the descending part A of the belt 22, but the upper surface of the conveyor plate 24 is The belt 22 is curved to form a concave surface, and a cover 36 is provided on the descending portion A of the belt 22 in close proximity to the conveyance plate 24, so that the seed potatoes 26 placed in the concave portion 24a of the conveyance plate 24 are It maintains a proper posture and reaches the folded part of the lower pulley 16 (the lower end of the cover 36) without falling (FIG. 8).

When the belt 22 runs slightly from the state shown in FIG. 8, the conveyor plate 22 moves as shown in FIG.
The portion of the seed potato 26 facing the sprout slips slightly on the top and enters the recess 38 provided at the lower end of the cover 36, and the seed potato 26 is gradually adjusted to a falling posture with the sprout facing upward. As the belt 22 runs further, the seed potatoes 26 almost slide out from the conveyor plate 24 as shown in FIG. Here, as mentioned above, the cover 36
Since the lower end of is located almost vertically, the recess 3
The seed potato 26 that has almost completely entered into the recess 3
Guided by 8, it is in a falling position with the bud facing upwards.

At the next moment, when the support of the conveying plate 24 is removed, the seed potatoes 26 fall into the grooves 50 that have just been formed while maintaining the above-mentioned falling posture while being guided by the elastic plate 44, and the seed potatoes 26 fall at the lower end of the instantaneous elastic plate 44. (Figures 11 and 12)
Immediately after that, the soil on both sides of the groove 50 is scraped off slightly by the soil return rod 56, and the seed potato 26 is thereby fixed in the groove 50 with its sprout facing upward.

The flexible elastic plate 44 absorbs the light impact caused by a change in position when the seed potato 26 falls from the lower end of the cover 36, and also elastically deforms depending on the falling posture of the seed potato 26, so that the seed potato 26 does not fall when it falls.
No unreasonable reaction force is applied to the For this reason, the proper falling posture of the seed potatoes 26 with the sprouts facing up is not disturbed.

Note that the seed potato planting machine according to the present invention can also be used for planting potatoes other than taro.

〔Effect of the invention〕

In the present invention, a conveyor plate having a concave portion in the center to maintain the posture of the seed potatoes and prevent them from slipping is planted on a belt in a forward-tilt state, and the seed potatoes are placed on the conveyor plate at the lowering part of the belt. A cover to prevent the seed potatoes from slipping is provided close to the conveyor plate, the lower end of the cover is placed in front of the lower pulley, the lower end of the cover is bent to position it almost vertically, and A seed potato falling posture adjustment part is formed at the lower end of the cover to adjust the falling posture of the seed potatoes by providing a recess opposite to the recess provided in the conveyance plate in the positioned part, and a dropper made of an elastic plate is formed at the lower end of the cover. Since the guide plate is installed almost vertically or slanted toward the rear, the seed potatoes can be slid out from the conveyor plate in a circular motion with the buds facing up at the lower end of the cover, and the seed potatoes that have slipped from the conveyor plate can be easily removed. can be dropped in the groove immediately after formation along a fall guide plate made of an elastic plate in the same posture.

For this reason, it is possible to mechanize the planting of taro, which was difficult to plant with the buds facing up because of their oval-like shape, and the work efficiency is significantly improved.

[Brief explanation of drawings]

FIG. 1 is a side view of a seed potato planting machine according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view of the seed potato planting machine for explaining the operation of the present invention.
FIG. 4 is a front view of the fall guide plate 46, and FIG.
The sectional view taken along the line X-X in FIG. 4 and the belt 22 shown in FIG.
FIG. 7 is a perspective view of the belt 22 with another conveyor plate 24' installed therein, and FIGS. 8 to 11 illustrate the operation of the present invention. FIG. 12, which is a diagram for explanation, is a cross-sectional view of a state in which the seed potato 26 has fallen into the groove 50. [Explanation of symbols of main parts], A: Lowering part of the belt, B: Horizontal running part of the belt, 2: Machine frame, 14:
Support rack, 14a: Rising part of support rack, 14b: Rear extension part of support rack, 16: Lower pulley, 18: Front pulley, 20: Rear pulley, 22: Belt, 24: Transport plate, 24a: Transport plate Concave part, 26: Seed potato, 3
6: cover, 38: recess provided at the lower end of the cover, 40: seed potato falling posture adjustment section, 44: elastic plate,
46: Fall guide plate, 50a: Groove bottom.

Claims (1)

[Scope of Claims] 1. A support frame consisting of a rising part inclined slightly rearward with respect to a vertical line and a rear extending part extending rearward almost horizontally at the upper end of this rising part is fixed to the machine frame. A front pulley and a lower pulley were supported at the upper and lower ends of the rising part of the support frame, respectively, a rear pulley was supported at the rear end of the rear extension part, and a number of conveyor plates were planted at equal intervals. In a seed potato planting machine that has a belt hooked around these pulleys,
A concave part is provided in the center of the conveyor plate to prevent the seed potatoes from falling out and to maintain the posture, and the conveyor plate is tilted forward and installed on the belt, and a descending part between the front pulley and the lower pulley is provided. A cover is provided close to the conveyor plate installed on the belt, the lower end of the cover is positioned in front of the lower end of the lower pulley, the lower end of the cover is bent and positioned almost vertically, and the lower end of the cover is A seed potato falling posture adjustment part is formed at the lower end of the cover to adjust the falling posture of the seed potatoes by providing a recess opposite to the recess provided on the conveying plate in the lower end of the cover, and a recess is provided at the lower end of the cover to the bottom of the groove immediately after formation. A seed potato planting machine characterized in that a falling guide plate is attached to the lower end of the cover so as to be inclined substantially perpendicularly or toward the rear. 2. The fall guide plate is composed of a support plate with a large cutout in the center and an elastic plate that is flexible and has restoring force, and the lower part of the elastic plate is supported in contact with the lower end of the support plate. 2. The seed potato planting machine according to claim 1, wherein the central portion of the elastic plate is deformable and restorable. 3. A recess is provided in the center of the conveyor plate to prevent the seed potatoes from falling out and to maintain their posture.
The conveyor plate is tilted forward and installed on the belt, and only the lower end rear side of the conveyor plate is extended on both sides,
The seed potato planting machine according to claim 1, characterized in that the rear part is raised. 4. The seed potato planting machine according to claim 1, characterized in that a soil return rod is attached to the rear of the groove cutting plate.