JPH0453225Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application The present invention relates to the structure of an agricultural granule spreader that is attached to the front of an agricultural tractor and spreads powdered or granular chemicals or fertilizers.

(b) Prior art There is a known technology for dispersing powder, granules, etc. onto a field by attaching an agricultural powder and granule spreader to a work equipment attachment device at the rear of a tractor or the front end of a bumper at the front of a tractor. As shown in Figure 5, the configuration of the agricultural powder and granule spreader attached to the front bumper of the tractor is as shown in Fig. 5, where funnels 2, 2... , connect the hoses 3, 3... to the funnels 2, 2..., and cover the lower part of the hoses 3, 3... from the middle to the bottom with a windproof cover 4 to prevent the chemicals from scattering. It was configured to do so.

(c) Problems that the invention aims to solve However, with the above configuration, the windproof cover is made of one layer, so when working in strong winds, the windproof cover may flap or roll up. This causes the chemicals to scatter. Also,
When passing over stumps, weeds, etc., parts of the windbreak cover would lift or get caught, and the chemicals would flow out. Afterwards,
The scattered chemicals were sucked into the radiator, air cleaner, etc., and were having a negative impact on the tractor's engine and main body.

(d) Means to solve the problems In order to solve these problems, this invention
It is constructed as follows.

In the spread material fall section disposed at the bottom of the agricultural powder and granule spreader S, double front and rear inner windbreak covers 17, 18 and outer windbreak covers 19, 20 are arranged at the bottom of the hopper 1, and the inner windbreak covers 17, 18 , while gradually narrowing down the left and right sides of the outer windbreak covers 19, 20, the inner windbreak covers 17, 18 and the outer windbreak covers 19, 20.
Cuts 17a, 17a, 18a, 18 at the bottom
a, 19a, 19a, 20a, 20a... are provided.

(e) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

Figure 1 is a side view of the agricultural powder spreader of the present invention attached to the front of an agricultural tractor. Figure 2 is an assembled perspective view of the windbreak cover. Figure 3 is a side view and partial cross-sectional view of an agricultural powder and granule spreader. FIG. 4 is a partial sectional view of a plan view of the end of the windproof cover.

In FIG. 1, a rotary tilling device R is attached to the rear of a top link 10 and a lower link 11 attached to the rear of an agricultural tractor T, and a hitch 6 of an agricultural powder spreader S is attached to a pumper 12 at the front end of the agricultural tractor T. At the same time as the fertilizer or chemicals are being spread, the soil is tilled using a rotary tiller R for embedding and stirring.

The structure of the agricultural powder and granule spreader S is as follows:
A pipe 13 is fitted into the front part so that its height can be adjusted, and the pipe 13 is fixed with lock bolts 14, 14. The upper end of the pipe 13 is fixed to a bracket 15, and the bracket 15 is fixed to the lower rear surface of the hopper 1. The hopper 1 has a lid 1a on the top.
is arranged via the hinge 16, and the front part is attached to the locking fitting 3.
It is locked at 0. 31 is a handle. A mounting frame 33 is fixed to the left side of the hopper 1 to which a motor 32 is attached, and an agitator shaft 42 is connected to the output shaft of the motor 32 to drive an agitator installed horizontally in the lower part of the hopper 1.

A support rod 34 is attached to the right side of the hopper 1,
A receiving pipe 35 is fixed to the rear of the support rod 34, and a release lever 36 is fitted into the receiving pipe 35. The tip of the release lever 36 is connected to an arm 38 via a spring 37, the arm 38 is fixed at its center to a rotating shaft 39 with a bolt 40, and an abutment roller 41 is pivotally supported at the other end of the arm 38. has been done.
The corresponding contact roller 41 contacts the cams 43, 43 fixed to the agitator shaft 42, and on the other hand, a guide plate 45 is installed obliquely in the hopper 1, and
A driving rod 44 is provided on the rotation shaft 39 and protrudes below the guide plate 45.

That is, the agitator shaft 42 by the motor 32
When the cams 43, 43 are rotated together with the rotation of the arm 38, the arm 38 is tilted and when the arm 38 returns rapidly due to the biasing force of the spring 37, the driving rod 44 hits the back side of the guide plate 45, and this continuous operation reduces the vibration. It causes it. Therefore, the bridging phenomenon that occurs when the drug in the hopper 1 decreases is eliminated by the vibration, and the drug is prevented from stagnation.

Further, a funnel mounting plate 46 is fixed to the lower end of the hopper 1, and funnels 2, 2, . . . are attached to the funnel mounting plate 46 at regular intervals in the left-right direction. Hoses 3, 3... are fitted into the lower ends of the funnels 2, 2, and fixed with hose bands 29. Further, the upper support metal fittings 25 and 26 are jointly fastened and fixed to the funnel mounting plate 46 at several places in the front and back, and the upper support metal fittings 2
Lower support fittings 23 and 24 and inner mounting plates 27 and 28 are jointly fixed to the lower portions of 5 and 26 with bolts.
An external mounting plate 2 is provided at the other end of the lower support fittings 23 and 24.
1 and 22 are fixed with bolts. The external mounting plate 2
1 and 22 have a width (6 cm) in order to provide a space between the inner windbreak cover and the outer windbreak cover, which will be described later. 47 is a spacer.

Inner windbreak covers 17 and 18 are fixed to the lower part of the inner mounting plates 27 and 28, and outer windbreak covers 19 and 20 are fixed to the lower part of the outer mounting plates 21 and 22 with bolts, and have a length that almost touches the ground. However, the front inner windbreak cover 17 is a little short. Inner windbreak cover 1
7, 18, the outer windbreak covers 19, 20 are made of rubber or synthetic resin, etc., and have a cut 17 at the bottom.
a, 17a...18a, 18a...19a, 19
a... 20a, 20a... are provided in the form of a curtain curtain. In addition, the notch 17a of the inner windbreak cover,
17a...18a, 18a... and notches 19a, 19a...20a, 20a... on the outer windbreak cover.
As shown in Figure 4, the positions of the fragments are staggered so that they are not on the same line, and when an obstacle passes, the contact position of the fragments is changed between the outer windbreak cover and the inner windbreak cover to prevent the chemicals from scattering. is kept to a minimum.

In addition, the inner mounting plates 27 and 28 and the outer mounting plate 2
The left and right sides of 1 and 22 face each other and form a “ku”.
It is constructed so that it gradually bends in a square shape, and is constructed so that both ends of the windproof covers 17, 18, 19, and 20 to be attached can be squeezed.

(f) Function of the device When spraying work is carried out with this configuration, the chemicals or fertilizers put into the hopper 1 are agitated by the agitator and fall from the drop hole through the funnel 2 and hose 3. The flying powder is trapped by the windproof covers 17, 18, 19, and 20. That is, when wind is generated due to driving or weather conditions, the outer windbreak covers 19 and 20 prevent the wind from reaching the inner windbreak covers 17 and 18, and the apertures on both sides improve the flow of crosswinds. Additionally, when obstacles such as weeds occur, the windbreak cover breaks into pieces due to the notches provided at the bottom of the cover.

(g) Effects of the invention With the above configuration, the invention provides the following effects.

First, because the windbreak cover has a double structure, it is possible to reduce scattering even when working in strong winds, and there is no longer any negative impact on the tractor or operator located at the rear.

Second, since the left and right sides of the windbreak cover are constricted, crosswinds flow better, the windbreak cover is less likely to deform, and a wide windbreak area can be maintained.

Third, a cut is made at the bottom of the windbreak cover so that it can be broken piece by piece against obstacles, minimizing deformation of the windbreak cover and reducing contact resistance with obstacles. was made smaller.

[Brief explanation of the drawing]

Figure 1 is a side view of the agricultural powder spreader of the present invention attached to the front of an agricultural tractor. Figure 2 is an assembled perspective view of the windbreak cover. Figure 3 is a side view and partial cross-sectional view of an agricultural powder and granule spreader. FIG. 4 is a plan view of the end of the windbreak cover and a partially sectional view. FIG. 5 is a side view of a conventional agricultural powder and granule spreader. S... Agricultural powder spreader, 2... Funnel, 3...
Hose, 17, 18... Inner windbreak cover, 19, 2
0...Outer windbreak cover, 17a, 18a, 19a,
20a...notch.

Claims (1)

[Scope of utility model registration request] In the spread material fall section disposed at the bottom of the agricultural powder and granule spreader S, double front and rear inner windbreak covers 17, 18 and outer windbreak covers 19, 20 are arranged at the bottom of the hopper 1, and the inner windbreak covers 17, 18 , while gradually narrowing down the left and right sides of the outer windbreak covers 19, 20, the inner windbreak covers 17, 18 and the outer windbreak covers 19, 20.
Cuts 17a, 17a, 18a, 18 at the bottom
An agricultural powder and granule spreader characterized in that it is provided with: a, 19a, 19a, 20a, 20a...