JPH0419803B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement in a fertilizer spreader that spreads powdered or granular fertilizer.

[Prior art and its problems] Conventionally, a so-called lime sawer for dispersing chemical fertilizers, lime, etc., as shown in FIG. However, it is common to spray this on fields.

However, in order to put these chemical fertilizers, etc. from the bag into the fertilizer hopper 2, the bag is turned upside down so that the opening is located at the bottom, and the chemical fertilizers, etc. that accumulate in the fertilizer hopper 2 are fed out from the opening. The bag must be lifted upwards to such an extent that the opening is not obstructed, and therefore, it is not easy to pour chemical fertilizer or the like into the fertilizer hopper 2 from the bag.

Furthermore, after the fertilizer hopper 2 is filled with chemical fertilizers, etc., and the chemical fertilizers, etc. remain in the fertilizer hopper 2 even though the work of spreading it on the field is finished, if you leave it as it is, the fertilizer If the hopper 2 is made of metal, there will be a problem of rust, and chemical fertilizers will cause a problem of chemical changes. Therefore, the remaining chemical fertilizer, etc. must be collected in bags, and the collection work is also cumbersome.

Furthermore, when the fertilizer hopper 2 is filled with chemical fertilizers and the like, and the work of dispersing them onto the field is interrupted due to rain or the like, a similar problem occurs if the interruption lasts for a long period of time.

[Object of the Invention and Disclosure] Therefore, the present invention has been made in order to solve the above-mentioned problems of the prior art. To provide a novel fertilizer spreader with a simple structure capable of modifying the form of a conventional fertilizer hopper 2.

In order to achieve this purpose, the fertilizer spreader of the present invention has a hopper, which has an opening at the top into which an ordinary fertilizer bag is inserted, supported on the machine frame. A bag support for suspending and supporting a fertilizer bag in an inverted position with the opening facing downward is arranged and installed at a position where the opening of the fertilizer bag to be supported is inserted into the hopper. It is characterized by

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. The same reference numerals are used for components common to the conventional one.

FIG. 2 is a perspective view of a tow-type fertilizer spreader according to a first embodiment of the present invention. In the same figure,
3 is a shallow hopper supported on the machine frame;
The hopper 3 has an opening 3a at its upper part into which an opening 4a of a normal fertilizer bag 4 is inserted. Inside the hopper 3, there is provided an agitator (stirring device) 6, which is formed into a basket shape with a round rod that is powered by a drive wheel 5 and rotates, and directly delivers the fertilizer in the fertilizer bag 4 to the field. It's starting to spread.

Further, above the hopper 3, there is a bag support 7 for suspending and supporting the fertilizer bag 4 in an inverted position with the opening 4a facing downward. It is arranged and installed so that it can be inserted into the body.

In FIG. 2, 8 is a traction culm, 9 is a bag holding rubber band, 10 is a lock handle, 11 is a bag holding plate, and 12 is a holding plate fixing lock.

FIG. 3 is a side view of the bag support 7 that can be raised and lowered. In the same figure, 7a is a support frame whose base end is attached to the upper edge of the rear wall of the hopper 3 with a support shaft.
3, and a stand and lifting handle 14 is attached to the back of the distal end side, and the bag presser plate 11 and the presser plate fixing lock 12 are provided at the tip of the support frame 7a, Lifting handle 1
The fertilizer bag 4 is set with the support frame 7a held horizontally through the support frame 7a, and then the support on which the fertilizer bag is set is extended to the rear wall of the hopper 3 through the stand/lifting handle 14. The frame body 7a is erected and locked onto the machine frame 1 using a lock handle 10.

When the support frame 7a extends to the rear wall of the hopper 3 and is erected and locked, the stand/lifting handle 14 can be folded onto the back of the support frame 7a, or It may also be made removable from the support frame 7a.

Further, the support frame 7a can be adjusted in length and contraction depending on the length of the fertilizer bag 4 in the vertical direction.

In FIG. 3, 15 is a shutter handle which opens and closes the bottom of the hopper 3 below the agitator 6. In this embodiment, the agitator 6 performs both stirring and feeding functions, and is mainly used for spreading granular fertilizer.

On the other hand, a device as shown in FIG. 4 is used to spread powdered fertilizer. That is, in this device, a feed pipe 16 is provided below the bottom of the hopper 3, an agitator 6 dedicated to stirring is pivotally supported above the bottom of the hopper 3, and on the other hand, the feed pipe 1
A feeding device 17 exclusively used for feeding is pivotally supported within 6.

FIG. 5 is a perspective view of a three-point hit fertilizer spreader according to another embodiment of the present invention. In the figure, reference numeral 18 denotes a lock stay, whose base end is connected to an upper link hitch 19, and whose distal end locks the support frame 7a. 20 is a lower link hitch. In addition, the configuration of hopper 3, agitator 6, etc.
It is similar to that of the example.

In addition, in FIG. 6, 3b is a hopper lower opening serving as an outlet for feeding out fertilizer from the hopper 3, 15a is a shutter for opening and closing the hopper lower opening 3b, 21 is fertilizer, and a is a level.

[Operations of Examples] Next, the main functions of each of the above-mentioned embodiments will be described with respect to the granular fertilizer spreader.

As shown in FIG. 3, when the support frame 7a of the bag support 7 is laid down, the support frame 7a
The fertilizer bag 4 is placed on top a, and its bottom is set on the support frame 7a via the bag holding plate 11 and the holding plate fixing lock 12. Next, the fertilizer bag 4,
The opening 4a is opened by cutting the free end of the head located on the opposite side of the support frame 7a. Next, from this state, with the shutter 15a of the hopper closed, the support frame 7a and the third
As shown by the chain line in the figure, it is pulled up to an upright position centered on the support shaft 13 and fixed in this state.

As a result, the fertilizer bag 4, whose bottom side is set on the support frame 7a by the bag holding plate 11, assumes an inverted position with the head side facing down with the opening 4a open, as shown in FIG. The support frame 7a is suspended along the front surface of the support frame 7a so that the open opening 4a faces the inside of the hopper 3.

As a result, the granular fertilizer 21 in the fertilizer bag 4 is
From the opening 4a that is open below the fertilizer bag 4,
As shown in FIG. 7, it flows into the hopper 3.

The fertilizer 21 flowing out from the opening 4a of the fertilizer bag 4 gradually accumulates in the hopper 3 and blocks the opening 4a, but as shown in FIG. surface level a
is sloped, and while the particles of the fertilizer 21 are collapsing and flowing on the surface layer, the flow continues, and the flow of the fertilizer raises the level a of the sediment layer to the edge of the opening 4a, as shown in FIG. When the fertilizer particles reach the edge and there is no movement on the surface of the grain layer, the fertilizer accumulated in the hopper 3 is transferred to the fertilizer bag 4.
The opening 4a of the fertilizer bag 4 is closed, and the fertilizer in the fertilizer bag 4 stops flowing out.

Next, in this state, put the fertilizer spreader into the field, operate the shutter handle 15, and operate the hopper lower opening 3, which serves as the outlet for the fertilizer from the hopper 3.
Run the fertilizer spreader with b open.

As a result, the agitator 6 that is pivotally supported within the hopper 3 is driven by the rotation of the drive wheel 5, and the sixth
It rotates counterclockwise in the figure, and while stirring the fertilizer 21 that has flowed out from the opening 42 of the fertilizer bag 4 and accumulated in the hopper 3, the fertilizer 21 is fed from the lower opening 3b of the hopper, which is the fertilizer outlet. Take it out and spray it on the field.

As a result, the level a of the surface layer of the fertilizer 21 deposited in the hopper 3 gradually decreases as the fertilizer 21 is fed out from the hopper lower opening 3b, and from the state shown in FIG. 8 described above to the state shown in FIG. It becomes a state of. As a result, the fertilizer 21 in the fertilizer bag 4 is deposited on the outside of the opening 4a of the fertilizer bag 4, and the fertilizer 21 that had been blocking the opening 4a is removed.
When the balance between the pressure due to the weight of the sedimentary layer and the pressure due to the weight of the fertilizer 21 in the fertilizer bag 4 is broken, the fertilizer 21 flows out from the opening 4a into the hopper 3 at once, and the hopper 3 returns to the hopper 3. The level a of the surface layer of the fertilizer 21 deposited inside is raised.
With this rise in level a, the fertilizer 21 accumulated in the hopper 3 is transferred to the opening 4a of the fertilizer bag 4 as shown in FIG.
This fertilizer bag 4 is blocked and dammed up.
The fertilizer 21 stops flowing out from the opening 4a.

While the fertilizer flows out into the hopper 3 from the opening 4a of the fertilizer bag 4, and even when the flow stops, the fertilizer 21 accumulated in the hopper is removed by the agitator 6 from the hopper lower opening 3b.
It is then rolled out one after another and sprayed on the fields.

Therefore, the fertilizer 21 in the fertilizer bag 4 is stored in the open opening 4a.
From there, a considerable amount of fertilizer intermittently flows into the hopper 3 to maintain a pooled state in the hopper 3, and the fertilizer in the hopper 3 is fed out quantitatively by the agitator 6 through the lower opening of the hopper. It comes to be paid out from 3b and sprayed on the field.

During this fertilizer spreading work, when the shutter handle 15 is operated to close the shutter 15a, the delivery of the fertilizer 21 to the field is stopped.

[Effects of the Invention] As described above, according to the fertilizer spreader of the present invention, the troublesome work of emptying granular or powdered fertilizer from a bag into a hopper, which was conventionally performed, can be omitted, and There is no need to install a large fertilizer hopper.

Furthermore, since the granular or powdered fertilizer in the fertilizer bag will be in the same state as being directly sprayed onto the field, when the spraying work is finished, the support frame 7a should be folded down and the fertilizer bag 4 By removing the fertilizer bag 4
The fertilizer remaining inside the fertilizer bag 4 can be stored together with the fertilizer bag 4, making it possible to rationally dispose of the fertilizer remaining inside the fertilizer spreader during fertilizer spreading work. Be able to do it.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional fertilizer spreader, Fig. 2 is a perspective view of a towed type fertilizer spreader according to the first embodiment of the present invention, and Fig. 3 is a longitudinal cross-sectional side view of the same towed type fertilizer spreader. , FIG. 4 is a vertical sectional view of the main parts of a fertilizer spreader according to a second embodiment of the present invention, FIG. 5 is a perspective view of a three-point hit fertilizer spreader according to a third embodiment of the present invention, and FIG. The figure is a vertical sectional view of the main part of each of the above-mentioned embodiments of the present invention, and FIGS. 7 and 8 are explanatory diagrams of the operation. Explanation of drawing symbols, a...Level, 1...Machine frame,
10...Lock handle, 11...Bag holding plate, 1
2... Presser plate fixing lock, 13... Support shaft, 14... Stand and lifting handle, 15... Shutter handle, 15a... Shutter, 16... Feeding pipe, 1
7... Feeding device, 18... Lock stay, 19...
...Hit for upper link, 2...Conventional fertilizer hopper, 20...Hit for lower link, 21
... Granular fertilizer, 3 ... Hopper of the present invention, 3a...
... Opening port, 3b ... Hopper lower mouth, 4 ... Fertilizer bag, 4a ... Opening, 5 ... Drive wheel, 6 ... Agitator, 7 ... Bag support, 7a ... Support frame, 8 ...Traction culm, 9...Rubber band.

Claims (1)

[Claims] 1 A hopper with an opening at the top into which a normal fertilizer bag is inserted is supported on the machine frame, and above the hopper, the fertilizer bag is suspended in an inverted position with the opening facing downward. A fertilizer spreader comprising a bag support device arranged to support the fertilizer bag at a position where the opening of the fertilizer bag to be supported is inserted into the hopper.