JPH064660Y2 - Eye plate type seeding device - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Use The present invention relates to a seed-type seeder mainly used for sowing large-diameter seeds such as soybean among sowing devices. Is.

(B) Conventional Technology It has been well known that a seeding device is used as a feeding unit of a seeding device.

For example, Japanese Utility Model Laid-Open No. 62-104609 and Japanese Unexamined Patent Publication No.
6-164705, Japanese Utility Model Publication No. 32-10516, and Japanese Utility Model Publication No. 61-204416.

(C) Problems to be solved by the invention However, in the related art, the fixing direction of the rotary plate placed on the upper surface of the feeding case is between the upper end of the rotary plate shaft and the rotary plate fixing bolt. Since it was designed to be screwed and clamped with, it is necessary to strongly tighten the rotating plate fixing bolt to increase the clamping force, and remove the rotating plate fixing bolt for replacement of the rotating plate. However, there was a problem that it took time and effort.

Further, since the rotary plate is placed on the upper end surface of the rotary plate shaft and is pinched by the rotary plate fixing bolts thereon, when the rotary plate shaft 11 is fixed to the upper surface, the rotary plate shaft 11 is rotated. Even if the plate is fixed in an inclined state and is configured to be a plane of the placing surface of the upper surface of the feeding case 2, the rotating eye plate that rotates in an inclined state rotates while abutting in an unevenly distributed state. Therefore, there are problems such that dust easily enters between the rotary fine plate and the surface of the feeding case, and uneven wear occurs.

The present invention solves the problems of the rotating plate fixed to the rotating plate shaft in such a biased state.

(D) Means for Solving the Problems The object of the present invention is as described above, and the configuration for achieving the object will be described below.

In a feeding device, in which a rotating pan 4 is arranged below the seed tank 1, seeds are held in a seed hole 4a provided in the rotating pan 4 and dropped by a constant grain, a rotating pan shaft 11 and a rotating pan. Four
Is fixed by inserting the engaging projection 10a provided on the rotary plate fixing knob bolt 10 into the engaging hole 4b provided at the rotation center of the rotating plate 4 and projecting from the engaging projection 10a. The threaded portion 10b in the tightening direction is screwed onto the threaded portion 11a provided on the upper end of the rotary eyelet shaft 11, and the elastic washer 35 is interposed between the rotary eyelet fixing knob bolt 10 and the rotary eyelet 4. In addition, a gap t is provided between the upper end support surface 11b of the rotary fine plate shaft 11 and the lower surface of the rotary fine plate 4 at the position where the tip of the engaging projection 10a abuts the upper end support surface 11b. .

Further, a low friction coefficient plate 33 fixed to the feeding case 2 side is interposed between the rotary plate 4 and the upper surface of the feeding case 2.

(E) Embodiment The purpose and construction of the present invention are as described above. Next, the construction of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is an overall side view of the seeding device of the present invention, FIG. 2 is a perspective view of the upper surface of the feeding case 2 and the scraping brush 3, and FIG.
The drawing is a drawing of a disassembled state of the seed tank 1, the feeding case 2, the scraping brush 3, and the dish chamber shutter 8.

The overall structure will be described with reference to FIG.

Toolbar mount 1 provided at the upper front end of the seed dish type seeding device
The portion 9 is inserted into a toolbar attached to a tractor, a tiller, etc., and the position can be fixed while adjusting the seeding row interval to the left and right.

About 2 to 4 sets of the seeding device of the present invention are attached to the toolbar, and the seeding of the number of rows is performed at the same time.

At the bottom of the tool bar mount 19, parallel links 20, 2
1, the seeding frame 22 is supported so as to be vertically movable in parallel.

A biasing spring 27 for biasing the whole seeding device in the parallel movement state to the soil surface is formed by a parallelogram diagonal line formed by the parallel links 20 and 21 between the seeding frame 22 and the toolbar mounting body 19. It is installed at the position.

A supporting rod is projected downward from the front end of the seeding frame 22,
Left and right 2 below the support rod in the shape of a letter "C" in plan view
The grooving disk device 17 composed of one disk is arranged.

The seeding pipe 16 extended from the feeding case 2 of the seeding device is arranged between the rear "H" shape of the grooving disk device 17.

After sowing with the sowing pipe 16, one cover soil disk 18 arranged obliquely in a plan view is arranged, and the seed cover 13 drops the seeds that have fallen into the groove formed by the groove making disk device 17. To cover the soil.

At the rear part of the soil cover disk 18, a compression / drive wheel 7 is arranged.

The crushing / driving wheel 7 crushes the soil surface after the soil is covered by the soil cover disk 18, and the rotational force is taken out by the projections 25 ... And the feeding device drive shaft 3 by the chain case 9.
1 to rotate the bevel gear 1 on the feeding device drive shaft 31.
4, the power is transmitted to the bevel gear 13 on the rotary fine plate shaft 11 to rotate the rotary fine plate 4.

The soil disc 18 is a parallel link 21 of the seeding frame 22.
It is loosely fitted and supported by a rotary support arm 26 projecting from the vicinity of the pivot support portion, and an urging spring device is interposed between the rotary support arm 26 and the seeding frame 22.

Further, from the rear part of the seeding frame 22, the compression / drive wheel frame 23 supporting the compression / drive wheel 7 is projected rearward.

The scraper 2 to the rear from the compression / drive wheel frame 23
4 is projected.

The seeding frame 22 is composed of a left and right symmetrical press-made frame. The seed dropping port 2h and the rotary dish shaft support portion 2i at the bottom of the feeding case 2 are clamped between the left and right frames by bolts. It is integrated into one.

And the feeding case 2 fixed to the upper part of the sowing frame 22
On the other hand, the seed tank 1 is removable, and a tank lid 15 is openably and closably attached to the upper surface of the seed tank 1.

A tank shutter 5 is provided below the seed tank 1.

Next, description will be given with reference to FIGS. 2 and 3.

The seed tank 1 and the feeding case 2 are both made of resin, and both are made of transparent resin.

In addition, a bottom plate 1b is formed on the bottom of the seed tank 1, and a shutter opening 1a is provided so that the tank shutter 5 can open and close the seed plate. Between the seed tank 1 and the feeding case 2, a snap fastener 12 can be attached and detached with a snap.

Further, the engaging portion 1c of the seed tank 1 is pivotally engaged with the inclined rear lower projection 2j of the feeding case 2, and the front end of the seed tank 1 is placed on the feeding case 2 with the portion as a fulcrum.
The simple fastener 12 can snap it.

Next, the feeding case 2 has a seed dropping port 2h and a fixed plate shaft supporting portion 2i protruding from the lower surface thereof, and an upper part thereof constitutes a plate chamber 2e.

The rotary tray 4 is fitted and inserted into the upper end support surface 11b of the upper end of the rotary tray shaft 11 protruding to the portion of the tray chamber 2e, and in this state, the rotary tray fixing knob bolt 10 is used to rotate the rotary tray 4 and the rotary tray. The shaft 11 is fastened.

Then, a scraping brush 3 for scraping off the seed that has been excessively fitted in the seed hole 4a is arranged on the rotating rotary plate 4, and the scraping brush 3 forms a bridge in the seed hole 4a and does not fall. The knocker 6 that promotes the fall is integrally attached.

The scraping brush 3 has a "reverse" shape, and the knocker 6 is arranged inside the "reverse" shape.

The fixing of the integrated member of the scraping brush 3 and the knocker 6 is performed on the side wall 2f of the dish chamber 2e of the feeding case 2 by the second
Vertical insertion grooves 2c and 2d are provided as shown in the drawing, and the vertical insertion grooves 2
Both ends of the scraping brush 3 are fitted into c and 2d.

The seed tank 1 is placed to prevent the scraping brush 3 fitted in the vertical insertion grooves 2c and 2d from coming out upward.

Further, at the rear of the inclined lower end of the side wall 2f of the feeding case 2,
The vertical insertion groove pieces 2a and 2b are provided, and the dish chamber shutter is slid on the portions, and the seed tank 1 placed on the upper portion prevents the upward movement.

On the lower surface of the portion of the feeding case 2 where the rotary eye plate 4 is arranged,
The dust removal holes 2k, 2 are opened so that the dust that has entered under the rotary tray 4 can be discharged to the outside of the machine.

FIG. 4 is a cross-sectional view of the rotary tray 4 and the feeding case 2 without the low friction coefficient plate 33, FIG. 5 is an exploded perspective view, and FIGS. 6 and 7 are low friction coefficients. It is sectional drawing of the state which interposed the board 33, and a disassembled perspective view.

As shown in FIG. 4 and FIG. 6, the lower surface of the rotating plate 4 and the rotating plate shaft 11 are fixed with the rotating plate fixing knob bolt 10 engaging the rotating plate 4 with the rotating plate shaft 11. A gap t is formed between the upper end supporting surface 11b of the rotating plate 4 and the upper end supporting surface 11b of the rotating plate 4, and the rotating plate fixing knob bolt 10 is tightened at a position where the rotating plate 4 contacts the upper surface of the feeding case 2. After the completion, the tightening is absorbed by the elastic washer 35 interposed therebetween.

Therefore, in the state in which the rotary tray fixing knob bolt 10 is tightened, the lower surface of the rotary tray 4 and the upper surface of the feeding case 2 are pressed and brought into contact with each other by the elastic force of the elastic washer 35.

An engaging projection 10a and a screw portion 10b are formed on the rotary plate fixing knob bolt 10, and a portion of the engaging projection 10a is fitted into an engaging hole 4b of the rotating plate 4 to lock the rotation. The engaging hole 4b is screwed onto the screw portion 11a of the rotary fine plate shaft 11 to rotate the rotary fine plate shaft 11 to rotate the rotary fine plate fixing knob bolt 1
It is transmitted to the rotary pallet 4 via 0.

The screwing direction of the screw portion 10b and the screw portion 11a is the same as that of the rotary eye plate 4.
The direction of tightening is by rotating.

In the state shown in FIGS. 4 and 5, friction is generated between the lower surface of the rotary plate 4 and the upper surface of the feeding case 2, so that the feeding case 2 between the two as shown in FIGS. 6 and 7. It is fixed to the side and a low friction coefficient plate 33 is interposed.

The low friction coefficient plate 33 uses an ultra-high molecular weight polyethylene sheet or a Teflon (trademark) sheet. Then, a cutout portion 33a for the seed drop opening and a cutout portion 33b for the dust removing hole 2 are formed.

(F) Effect of the Invention Since the present invention is configured as described above, it has the following effects.

Firstly, as in the prior art, when the rotary tray is clamped and fixed between the upper end support surface of the rotary tray shaft 11 and the rotary tray fixing bolt, the rotary tray is tilted. Although there was a high possibility that it would be fixed, by constructing it as in claim 1 of the utility model registration, the rotary plate is received and supported by the upper surface of the feeding case 2, so that Since it can be locked along the surface, there is no gap between the rotating plate 4 and the feeding case 2 for entering dust, and uneven wear occurs due to the uneven part contacting and rotating. There is nothing to do.

Secondly, since the screw portion 10b which is tightened by rotation is screwed into the screw portion 11a provided at the upper end of the rotating dish shaft 11, the rotating dish fixing knob bolt 10 does not need to be strongly tightened.
Since it is always self-tightening, it will not loosen, and even when replacing the rotating plate 4, the rotating plate fixing knob bolt 1
It is possible to rotate together with the rotary pallet 4 simply by rotating 0, which facilitates the replacement work of the rotary pallet 4.

Thirdly, the rotary plate 4 is received on the upper surface of the feeding case 2. However, as described in claim 2 of the utility model registration, by interposing the low friction coefficient plate 33 therebetween, the space between the two is improved. It was able to smooth the rotation of.

[Brief description of drawings]

FIG. 1 is an overall side view of the seeding device of the present invention, FIG. 2 is a perspective view of the upper surface of the feeding case 2 and the scraping brush 3, and FIG.
The drawing shows a disassembled state of the seed tank 1, the feeding case 2, the scraping brush 3, and the eyelet chamber shutter 8. FIG. 4 shows the rotary eyelet 4 and the feeding case 2 in which the low friction coefficient plate 33 is not interposed. 5 is a sectional view of a portion of FIG. 5, FIG. 5 is a perspective view of an exploded state, and FIG.
FIG. 7 and FIG. 7 are a sectional view and a disassembled perspective view of a state in which the low friction coefficient plate 33 is interposed. 2 ... Feeding case 4 ... Rotating plate 10 ... Rotating plate fixing knob bolt 10b ... Screw part 11 ... Rotating plate shaft 11a ... Screw part 11b ... Upper end support surface 33 ... Low friction coefficient plate 35 ... Elastic washer

Claims (2)

[Scope of utility model registration request] 1. A feeding device for arranging a rotating plate 4 under a seed tank 1, holding seeds in a seed hole 4a formed in the rotating plate 4 and dropping the seeds by a constant grain, in a rotating plate shaft. 1
1 and the rotary plate 4 are fixed by the rotary plate fixing knob bolt 10
The engaging protrusion 10a provided on the rotary plate 4 is fitted into the engaging hole 4b provided at the center of rotation of the rotating plate 4, and the screw portion 10b protruding from the engaging protrusion 10a is tightened by rotation. The shaft 11 is screwed onto a screw portion 11a provided at the upper end of the shaft 11, and an elastic washer 35 is interposed between the rotary eye plate fixing knob bolt 10 and the rotary eye plate 4, and the tip of the engaging projection 10a is at the upper end. At the position where it comes into contact with the support surface 11b, the rotary dish shaft 1
A plate-type seeding device, characterized in that a gap t is provided between the upper end supporting surface 11b of No. 1 and the lower surface of the rotating plate 4. 2. A low friction coefficient plate 33 fixed to the feeding case 2 side is interposed between the rotary eye plate 4 and the upper surface of the feeding case 2 as claimed in claim 1 of the utility model. Eye plate type seeding device.