JPH0534496Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a seed potato planting machine that mechanically plants seed potatoes such as Konniyaku sweet potato, taro, and yams.
This invention relates to a seed potato planting machine that allows adjustment of the falling position of seed potatoes.

[Conventional technology]

For example, in a Konnyaku potato planting machine, three pulleys, a lower pulley, a front pulley, and a rear pulley, are supported in a triangular shape when viewed from the side via a pulley support member on a machine frame to which wheels are attached. A conveyor belt with a large number of conveyor plates planted at regular intervals is hung between each of the pulleys, and the seed potatoes thrown between the conveyor plates at the seed potato input section between the front pulley and the rear pulley are transferred to the conveyor belt. The present inventors have developed a system in which seed potatoes are mechanically planted by transporting them to the lower pulley and dropping them.

In the conventional Konniyaku potato planting machine, the support position of the lower pulley relative to the machine frame was fixed.

[Problem that the invention attempts to solve]

The seed potatoes for Konniyaku sweet potatoes are usually two-year-old or three-year-old ones, and the size of the seed potatoes and the length of the sprouts growing on the seed potatoes vary.

Konniyaku potato seed potatoes must be planted with the buds facing up, and are dropped from the lower pulley of the planting machine into the planting groove without changing the planting position with the buds facing up. It is necessary. The stability of the planting posture of seed potatoes is higher as the seed potatoes are larger or the sprouts growing on the seed potatoes are longer. Small seed potatoes or seed potatoes with short buds tend to lose their posture while falling.

With conventional Konniyaku potato planting machines, the support position of the lower pulley relative to the machine frame is fixed and fixed, so the position at which the seed potatoes fall cannot be adjusted, and small seed potatoes fall over a long distance. The planting posture was easily lost during the fall.

In view of the problems of the conventional Konniyaku potato planting machine, the present invention has been developed so that the falling position of Konniyaku potato seeds can be adjusted according to the size, type, or length of the buds. This was done with the aim of making it possible to plant Konniyaku potato seed potatoes in the correct planting position with the buds facing up.

[Means for solving the problem]

The present invention supports three pulleys, a lower pulley, a front pulley, and a rear pulley, in a triangular shape when viewed from the side via a pulley support member on a machine frame with wheels attached, and supports a large number of conveyor plates at a fixed position. A conveyor belt installed at intervals is hung between each of the pulleys, and at the seed potato input section between the front pulley and the rear pulley, the seed potatoes introduced between the conveyor plates are transferred to the portion of the lower pulley by the conveyor belt. In a seed potato planting machine configured to mechanically plant seed potatoes by conveying them to a certain point and dropping them, the fixing position of a lower pulley support member for supporting the lower pulley in the diagonal up and down direction relative to the machine frame can be adjusted. A lower pulley support member is attached to the machine frame, and the lower pulley is supported at the lower end of the lower pulley support member, and the conveyor belt is hung between the three pulleys via a tension device. The seed potato planting machine is characterized in that the support position of at least one of the front pulley and the rear pulley relative to the support member can be adjusted.

〔Example〕

Embodiments of the invention are shown in FIGS. 1-4.

An axle 8 is rotatably supported via a pair of bearings 6 on the rear lower surface of a machine frame 4 in which two angle members 2 having a U-shaped cross section are connected at a predetermined interval. A wheel 10 is attached to each. The two angle members 2 constituting the machine frame 4 face each other with their openings facing inward.

On the top surface of the machine frame 4, there are a front pulley 12 and a rear pulley 1.
Front and rear pulley support members A for supporting 4 are fixed. The front and rear pulley support member A includes a pedestal 16 fixed to the machine frame 4 and a pair of support plates 22 supported by the pedestal 16 via a front column 18 and a rear column 20. This support plate 22 is made of an angle material, and a pair of support plates 22 are connected to each other at a predetermined interval.

A front pulley shaft 24 is attached to the front and rear ends of the pair of support plates 22.
The front pulley 12 and the rear pulley 14 are supported via the rear pulley shaft 26 and the rear pulley shaft 26, respectively.

As shown in FIGS. 1 and 4, the lower pulley support member B has a configuration in which two angle members 28 having a U-shaped cross section are connected at a predetermined interval via a connecting plate 30. A lower pulley 34 is supported at the lower end of the angle member 28 via a lower pulley shaft 32. The two angle members 28 that make up the lower pulley support member B have their openings facing outward, and each angle member 28 has a large number of fixing holes 36 at regular intervals along its length. It is placed along the direction.

A pair of fixing tools C are used to fix the lower pulley support member B, which is made up of two angle members 28, to the machine frame 4. This fixture C consists of a rectangular plate 3 that can be fitted into each of the angle members 2 and 28.
8 and 40 are connected by a connecting tube 42. As shown in FIG. 1, the lower pulley support member B is
It is necessary to fix it to the machine frame 4 so that its upper end is inclined backward, and the fixing tool C is required to correspond to this.
The two rectangular plates 38 and 40 are connected to a connecting tube 42.

When the square plates 38 and 40 of the fixture C are fitted into the angle members 2 and 28, respectively, and the square plates 38 and 40 and the angle members 2 and 28 are fixed via bolts 43 and nuts 44, the lower parts are attached to the machine frame 4. The pulley support member B is fixed in a backward tilted position. Angle material 28
is provided with a large number of fixing holes 36, and by changing the fixing holes 36 used, the fixing position of the lower pulley support member B relative to the machine frame 4 in the diagonal vertical direction can be adjusted.

Konniyaku potato seed potatoes (hereinafter simply referred to as seed potatoes) D
A falling attitude adjuster 45 for adjusting the falling attitude of the lower pulley support member B is integrally attached to the lower pulley support member B via an attachment plate 46.

Front pulley 12, rear pulley 14 and lower pulley 34
Three pulleys are attached to the machine frame 4 on the front and rear pulley support members A.
It is supported via the lower pulley support member B so as to have a triangular shape when viewed from the side.

A large number of conveyor plates 50 are installed at regular intervals on the conveyor belt 48 , and the conveyor belt 48 connects the lower pulley 34 , the front pulley 12 , the rear pulley 14 and the central large diameter portion of the axle 8 . As shown in FIG. 6, a predetermined tension is applied to the conveyor belt 48 by a tension roller 51 provided near the axle 8a.

Next, a drive mechanism for running the conveyor belt 48 will be explained.

As shown in FIGS. 1 and 5, a rotating plate 54 that rotates around a fulcrum pin 52 in the center is attached to the side surface of one angle member 2 of the machine frame 4.
A chain gear 5 with a small number of teeth is attached to both ends of this rotating plate 54.
6,58 are attached.

As shown in FIGS. 4 and 6, a chain gear attachment shaft 60 is supported at the upper end of the lower pulley support member B. A chain is connected between the chain gear 62 attached to one end of the chain gear attachment shaft 60, the chain gear 64 attached to the axle 8, and each of the chain gears 56 and 58 attached to both ends of the rotating plate 54. 66 is hung in the state shown in FIG. 1, and the rotational force of the axle 8 is transmitted to the chain gear attachment shaft 60.

As shown in FIGS. 4 and 6, a chain 71 is installed between the chain gear 68 attached to the other end of the chain gear attachment shaft 60 and the chain gear 70 attached to the end of the lower pulley shaft 32. The rotating force of the chain gear attachment shaft 60 is transmitted to the lower pulley shaft 32, and the lower pulley 34 is driven and rotated.

The side of the rotating plate 54 on which the chain gear 58 is attached is constantly pulled upward by the action of the tension spring 72, and the lower pulley support member B relative to the machine frame 4
The slack in the chain 66 caused by changing the fixing position of the chain 66 is absorbed.

By changing the fixed position of the lower pulley support member B relative to the machine frame 4, the lower pulley 34 relative to the machine frame 4 can be fixed.
In order to change the falling position of the seed potatoes D by changing the attachment position of the seed potatoes D, the position of at least one of the front pulley 12 and the rear pulley 14 must be changed. Cannot be hung.

In this embodiment, as shown in FIGS. 8 and 9, an elongated hole 74 (having a width that allows the rear pulley shaft 26 to be inserted) is provided at the center of the rear part of the support plate 22. The mounting position of the bearing 76 supporting the rear pulley shaft 26 with respect to the support plate 22 is adjusted using the elongated hole 74 and the tension roller 51 to solve the above problem.

If adjustment cannot be made using only this elongated hole 74,
The pair of support plates 22 supporting the front pulley 12 and the rear pulley 14 are configured to be movable back and forth with respect to the machine frame 4, or the rear pulley 14 is configured to be able to move up and down with respect to the machine frame 4. It is necessary.

The groove cutting plate 78 is for forming a groove in the soil surface for planting the seed potatoes D, and is attached to the front part of the machine frame 4, and a part of the falling attitude adjustment tool 45 is installed in this groove. It has entered the inside of the cutting plate 78.

Further, a seed potato input section E is provided between the front pulley 12 and the rear pulley 14, and seed boxes 80 containing seed potatoes D are installed on both sides of this seed potato input section. In FIG. 1, reference numerals 82 and 84 indicate a connecting rod provided at the front end of the machine frame 4, and a hook provided at the rear of a towing vehicle such as a walking tractor.

And, as shown in FIGS. 1 and 2,
While walking, the worker throws the seed potatoes D stored in the seed box 80 between the conveyor plates 50 of the conveyor belt 48 at the seed potato input section E. When the seed potatoes D placed on the conveyor belt 48 pass through the slope between the front pulley 12 and the lower pulley 34 and approach the lower pulley 34, the drop position adjuster 45 moves the seed potatoes D upwards. The falling posture is adjusted, and the seedlings fall into the planting groove 86 formed by the groove cutting board 78 and are planted.

By changing the fixed position of the lower pulley support member B with respect to the machine frame 4 as described above, the position of the lower pulley 34 with respect to the machine frame 4 can be adjusted.

FIG. 2 shows a case in which seed potatoes D smaller than those shown in FIG. It is lowered to prevent the seed potatoes D from losing their planting position with the buds facing up while they are falling.

The present invention can also be applied to a machine for planting taro, yam, etc.

[Effect of idea]

The present invention makes it possible to adjust the fixed position of the lower pulley support member for supporting the lower pulley in the diagonal vertical direction with respect to the machine frame, and attaches the lower pulley support member to the machine frame, so that the lower end of the lower pulley support member In addition to supporting the lower pulley, a conveyor belt is hung between the three pulleys via a tension device, and the support position of at least one of the front pulley and the rear pulley relative to the support member can be adjusted as necessary. Therefore, the falling position of the seed potatoes can be freely adjusted according to the size of the seed potatoes to be planted, and at the same time, even if the mounting position of the lower pulley support member to the machine frame is changed to adjust the falling position of the seed potatoes, the above-mentioned three The conveyor belt can be hung on two pulleys without any problem.

Therefore, the seed potatoes can be dropped into the planting furrow at the optimal dropping position depending on the size and type of the seed potatoes, and this prevents the planting position of the seed potatoes from collapsing mid-way due to the falling position being too high. This makes it possible to mechanically plant seed potatoes in the correct posture.

[Brief explanation of the drawing]

Figures 1 and 2 are side views of the seed potato planting machine according to the present invention with the seed potatoes D falling at different positions, Figure 3 is a rear view, and Figure 4 is the lower pulley support member B. 5 is a plan view of the rotating plate 54, and FIG. 6 is a perspective view of the machine frame 4.
7 is a side view of the tension roller 51, FIG. 8 is a rear view of the rear pulley 14, and FIG. 9 is a rear view of the rear pulley 14. It is an enlarged side view. The explanation of the symbols of the main parts is as follows. A... Front and rear pulley support member, B... Lower pulley support member, C... Fixture, D... Seed potato, E... Seed potato input section, 2... Angle material forming the machine frame,
4...Machine frame, 10...Wheel, 12...Front pulley,
14... Rear pulley, 28... Angle material forming the lower pulley support member, 34... Lower pulley, 3
6...Fixing hole provided in the angle material 28, 48
...Transportation belt, 50...Transportation plate.

Claims (1)

[Claims for Utility Model Registration] (1) Three pulleys, a lower pulley, a front pulley, and a rear pulley, are supported in a triangular shape when viewed from the side via a pulley support member on a machine frame to which wheels are attached; A conveyor belt with a large number of conveyor plates planted at regular intervals is hung between each of the pulleys, and the seed potatoes thrown between the conveyor plates at the seed potato input section between the front pulley and the rear pulley are transferred to the conveyor belt. In a seed potato planting machine that mechanically plants seed potatoes by conveying them to the lower pulley and dropping them, the lower pulley support member is fixed to the machine frame in an oblique vertical direction to support the lower pulley. The lower pulley support member is attached to the machine frame with its position adjustable, and the lower pulley is supported at the lower end of the lower pulley support member, and the conveyor belt is inserted between the three pulleys via a tension device. A seed potato planting machine that is characterized by a hanging position and is capable of adjusting the position at which the seed potatoes fall. (2) A seed potato in which the falling position of the seed potato is adjustable as set forth in claim 1 of the utility model registration claim, characterized in that the supporting position of at least one of the front pulley and the rear pulley with respect to the support member is adjustable. Planting machine.