JPH088566Y2 - Fixing structure of eye plate type seeder - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a seeding device using a plate type feeding device,
The present invention relates to a structure for fixing a plate to a feeding shaft.

(B) Prior Art Conventionally, a plate type feeding device has been publicly known, for example, the technology of Japanese Utility Model Laid-Open No. 62-65021 is publicly known.

In these conventional perforated plates, the perforated plate was inserted into the screw part of the feeding shaft and fixed with nuts, but since the perforated plate sometimes rotated due to the load at the time of sowing, the seeding position was sometimes misaligned.
As shown in FIG. 4, the fixing knob 22 'is provided with a slotted portion at the base thereof so that a perforation is inserted and fixed to the feeding shaft 16'.

(C) Problems to be solved by the invention However, when the eye plate is fixed by a fixed knob having a slot, when the eye plate is loaded, for example, the eye plate is near the drop opening. If the seeds enter between the bottom plate and the bottom plate, the bolts will be tightened, and the bolts could not be removed by hand during maintenance or replacement of the eye plate, and even with pliers, they could be removed and damaged. is there.

(D) Means for Solving the Problems The present invention is configured as follows in order to solve such problems.

In the feeding device A of the plate type seeder, a flange portion 16a for receiving the lower surface of the plate 20 is provided on the upper portion of the feeding shaft 16 projecting from below the feeding case 13 to the center of the feeding case 13, and the flange portion 16a is provided. At the center of the shaft, a slitting part 16b having two surfaces parallel to the axis and equidistant from the axis of the feeding shaft 16 is provided, and the base of the slit 16b is provided. Is provided with a shaft portion 16d having a diameter C smaller than the width B of the slit portion 16b, and a screw portion 16c is provided above the slit portion 16b above the center of the flange portion 16a. A nut 22a fixed to a fixing knob 22 is fitted to the outer periphery of the slit portion 16b and the screw portion 16c by fitting the plate 20 and the elastic body 21 in order from the bottom.
The eye plate 20 is fixed by being screwed to 6c.

(E) Embodiment of the Invention The object of the invention is as described above, and the structure of the invention will be described based on the structure of the embodiment shown in the accompanying drawings.

FIG. 1 is a side view of the whole seeding machine equipped with the fixing device of the present invention, FIG. 2 is a side sectional view of a seed tank and a feeding device, and FIG. 3 is a perspective view of a perforated plate of the present invention.

To explain from the overall configuration in FIG. 1, a mounting body 1 for mounting on a tool bar or the like of a rotary cultivator is provided in the upper front part of the seeder, and a fitting insertion portion 1a opened in the mounting body 1.
The toolbar is inserted and fixed so that its position can be adjusted. The seeding frame 3 is attached to the lower part of the mounting body 1 through parallel links 2 and 2.
Are connected to each other so that they can be moved up and down in parallel, and a spring 4 is interposed at a pivotal support portion on a diagonal line of the parallel links 2, 2 to urge the seeding frame 3 downward.

A supporting rod is vertically provided at the front end of the seeding frame 3, and grooved discs 5, 5 are pivotally supported at the lower end of the supporting rod in a V-shape in a plan view.
A scraper 6 is brought into contact with the circumferential portion of the grooving disk 5 so as to scrape off the attached soil or the like.

A mounting arm 7 is projected rearward and downward from a pin that pivotally supports the parallel link 2 and the seeding frame 3, and a soil cover disk 8 is pivotally supported at a lower end of the attachment arm 7. It is urged downward by a spring interposed between the seeding frames 3 to cover the groove formed by the grooving disk 5.

Further, a roller frame 10 is projected rearward from the rear end of the seeding frame 3, and a compression roller 11 is rotatably supported by the rear end of the roller frame 10. The compression roller 11
The radial lugs 11a, 11a ... Are radially projected on the outer peripheral side of the lug so that the lugs 11a, 11a.
A sprocket is fixedly mounted on the side of the shaft to transmit the power of the input shaft 18 of the feeding device A described later through the chain. 12 is a chain case.

The feeding device A is mounted on the seeding frame 3 while being tilted backward,
A seed tank 14 is detachably attached to the feeding device A by a locking tool 29. A lid 14a is provided on the upper part of the seed tank 14, and a seed drop hole 14b is opened on the lower surface of the rear part, and the drop port 14b can be opened and closed by a shutter 15 provided on the lower part thereof.

As shown in FIG. 2 and FIG. 3, the feeding device A is a device for feeding a seed 20 in a feeding case 13 inside and feeding the seed 20 by a fixed amount by rotating the dish 20. The feeding case 13 has a funnel shape at the center of the bottom surface 13b, a shaft support portion 13c for pivotally supporting the feeding shaft 16 provided at the center thereof, and a drop opening 13a provided at the front portion of the bottom surface 13b. The feeding shaft 16 is
The feeding case 1 is pivotally supported on the shaft support portion 13c below the feeding case 13.
The upper end of the inside of 3 projects.

A seed pipe 23 is communicated with the lower end of the drop port 13a, and the lower end of the seed pipe 23 is inserted between the grooving discs 5, 5. Then, the bottom plate 30 is attached on the bottom surface 13b, and the bottom plate 30 is
The surface is made of slippery material so that the seeds will not be damaged during transportation.

A bevel gear 17 is fixed to the lower end of the feeding shaft 16, meshes with a bevel gear 19 fixed to an input shaft 18 mounted on the seeding frame 3, and the feeding shaft 16 can be rotated by rotating the compression roller 11. is there.

A perforated plate 20 is fitted on the upper end of the feeding shaft 16, and a perforated plate is fixed with a fixed knob 22 via an elastic body 21 such as a wave washer.
The seed plate 20 is configured to be fixed, and the seed holes 20a, 20a are concentrically opened in one row or several rows at regular intervals, and the seed holes 20a are formed above the falling holes 13a on the eye plate 20. , 20a ...
The lower end of the brush 24 for scraping off the extra seeds that could not be inserted into the contact is provided in contact with the brush 24, and the brush 24 is fixed to the feeding case 13. Reference numeral 25 is a thumbscrew that adjusts and fixes the height of the brush 24.

Further, the upper end of a leaf spring-like knocker 26 is fixed to the side portion of the brush 24 with a thumbscrew 27, and the lower end of the knocker 26 is arranged to be fitted into the seed hole 20a of the eye plate 20 on the drop hole 13a. And plate
The tip of the knocker 26 is fitted into the seed hole 20a when the 20 is rotated, and the seed is forcibly dropped by the impact at that time,
Prevents clogging.

The structure of the upper end of the payout shaft 16 for fixing the plate 20 is
As shown in FIGS. 5 and 6, a flange portion 16a for receiving the bottom surface of the plate 20 is provided on the upper portion of the feeding shaft 16, and the flange portion 16a is provided.
The upper surface of the slab is accurately machined horizontally, and is provided on the center of the flange 16a at two positions equidistant from the axis of the feeding shaft 16 and parallel to the axis and parallel to each other. Split part 16
b is erected, a shaft portion 16d is provided at the base of the slit portion 16b, and the diameter C of the shaft portion 16d is smaller than the width B of the slit portion 16b so that a gap is formed. There is. This is because, if the shaft portion 16d is not provided, as shown in FIG. 7, burrs and arcs are generated at the base of the slitting portion 16b, and when the eyelet 20 is fitted, the burrs come into contact with the burr and do not rattle without guiding. As a result, the base plate 30 comes into contact with the bottom plate 30 during feeding, and the perforated plate 20 and seeds are damaged. Therefore, by providing the shaft portion 16d that forms the gap, even if some burr or the like occurs, it is not affected, and the upper surface of the flange portion 16a can be easily processed. A screw portion 16c is provided upright on the center of the slit portion 16b.

In addition, a shaft hole 20b having a size substantially the same as the outer diameter of the slot 16b (so that it can be inserted into the slot 16b in close contact) is formed in the center of the eyelet 20, and the fixed knob 22 has a central portion. A nut 22a is integrally embedded on the back surface so that it can be screwed into the screw portion 16c, and a hakama portion 22b is provided around the lower portion of the fixed knob 22 so that the upper end of the slotted portion 16b does not hit when screwing,
When the pallet plate 20 is fixed, the lower surface of the skirt portion 22b contacts the elastic body 21 to prevent loosening.

(F) Effects of the Invention With the above-mentioned configuration, the invention has the following effects.

First, when the eye plate is fixed, the eye plate is fitted into the slit portion of the payout shaft, so that it cannot rotate with respect to the payout shaft. The plate did not rotate to tighten the fixed knob, and the fixed knob could be easily removed without the need for a tool such as a spanner.

Secondly, since the screw portion protrudes when the plate is fitted to the payout shaft, the screw hole on the payout shaft is searched for with the elastic body and the plate fitted to the fixing knob as in the conventional case. They did not need to be screwed, they could be easily fixed, and the time required for disassembly and assembly was shortened.

Thirdly, since it is provided on the shaft portion 16d having a diameter C smaller than the width B of the slit portion at the base of the slit portion of the feeding shaft, the upper surface of the flange portion can be easily machined, and Even if burrs etc. occur at the base of the slotting part, they are absorbed by the gap, and when the plate is fitted on the feeding shaft, the plate can be fixed horizontally, and it will not come into contact with the case with high accuracy. I was able to get out.

[Brief description of drawings]

FIG. 1 is a side view of the whole seeding machine equipped with the fixing device of the present invention, FIG. 2 is a side sectional view of a seed tank and a feeding device, FIG. 3 is a perspective view of the eyelet assembly of the present invention, and FIG. FIG. 5 is a front view of the upper part of the payout shaft, FIG. 5 is a side view of the same, and FIG. 7 is a front view of the upper part of the payout shaft when the shaft part is not provided. A: Feeding device, 13: Feeding case 16: Feeding shaft, 16a: Flange portion 16b: Sliding portion, 16c: Screw portion 16d: Shaft portion, 20 plate 21 ... Elastic body, 22 ...... Fixed knob

Claims (1)

[Scope of utility model registration request] 1. In a feeding device A of a plate type seeder, a flange portion 16a for receiving a lower surface of a plate 20 is provided on an upper part of a feeding shaft 16 projecting from the lower side of the feeding case 13 to the center of the feeding case 13. , In the center of the flange portion 16a, at positions equidistant from the axis line of the feeding shaft 16 and parallel to the axis line and parallel to each other 2
A slotted portion 16b provided with a surface is erected, a shaft portion 16d having a diameter C smaller than the width B of the slitted portion 16b is provided at the base of the slitted portion 16b, and the center upper portion of the flange portion 16a is provided. Then, a threaded portion 16c is provided on the upper portion of the slotted portion 16b, and a perforated plate 20 and an elastic body 21 are fitted to the outer periphery of the shaft portion 16d, the slotted portion 16b and the threaded portion 16c in order from the bottom, and the fixed knob 22 A plate-fixing structure for a plate-type seeder, characterized in that a nut 22a fixed to the above is screwed to the screw portion 16c to fix the plate 20.