JPH0536331Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to an in-soil fertilizer applicator that applies fertilizer into the soil between crop rows while moving along the crop rows in a field.

Conventional technology Soil fertilizer applicators that apply liquid, paste, or granular fertilizer to the soil between crop rows while moving along crop rows in a field are already known and have not been put into practical use. has been done.

Problems that the invention aims to solve By the way, conventional fertilizer applicators of this type are equipped with separators to guide and lower the fertilizer applicator between the crop rows. If it is overgrown and overgrown, it may interfere with lowering the fertilizer applicator between the crop rows, or it may overturn or damage the crop when lowering the fertilizer applicator between the crop rows. Not only that, but in soft fields, the sliding resistance of the fertilizer is large and there are problems such as the inability to slide smoothly.

Therefore, in view of the problems of the conventional ones, the present invention allows the fertilization device to be lowered smoothly between the rows of crops, even if the crops are thick and cover the rows. Moreover, it is an object of the present invention to provide an in-soil fertilizer applicator that does not cause the risk of overturning or damaging crops, has low sliding resistance even in soft fields, and can always apply fertilizer smoothly.

Means for Solving the Problems The present invention has the following technical means for achieving its purpose.

In other words, the soil fertilizer applicator according to the present invention is a soil fertilizer applicator that applies fertilizer to the soil between crop rows while moving along the crop rows, and the fertilizer applicator has a fertilization section that applies fertilizer into the soil and a soil surface. The upper fertilizing part is fixed to the base frame of the fertilizer applicator in a downwardly inclined manner toward the rear, and the support frame of the sled body is connected to the base frame through a link mechanism consisting of upper and lower links. In addition to being connected so that they can move up and down,
The rotation fulcrum of the upper link and support frame of the above link mechanism is provided in a position forward of the rotation fulcrum of the lower link and support frame, so that when the fertilization part is located above the ground surface, it will not move downward due to its own weight. The sled body maintains a forward-downward posture, and when the fertilization part is located underground, the sled body, which has moved upward in contact with the ground surface, maintains a forward-wardward upward posture and slides on the ground surface. This is a characteristic feature.

Function The fertilizer application device consists of a fertilizer application section that applies fertilizer into the soil and a sled body that slides on the ground surface. When in the upper position, the sled body is in a forward-down position, so when the fertilizer applicator is lowered between the crop rows, the sled body combs the crops and descends smoothly.
There is no risk of crushing or damaging crops. Further, when the fertilizing section is located underground, the sled body in contact with the ground surface is raised forward, so that sliding resistance is small and the fertilizing work is carried out smoothly. Note that during fertilization, the sled body maintains the soil depth of the fertilized area constant, so the fertilization depth is always constant.

Example An embodiment of the present invention will be described with reference to the drawings.

In Figures 1 and 3, reference numeral 1 denotes a fertilizer application device of an in-ground fertilizer applicator, and sled bodies 4, 4 are movable up and down on a base frame 2 via a link mechanism consisting of upper and lower links 3, 3a. , and left and right separators (weed dividing plates) 5, 5 are attached so as to surround the sled bodies 4, 4. Reference numeral 6 denotes a fertilizing nozzle constituting a fertilizing section, and this fertilizing nozzle 6 is fixed to the base frame 2, and extends rearward in a downwardly inclined manner. Reference numeral 7 denotes a fertilization depth adjustment bolt, and this adjustment bolt 7 is a stopper for regulating the raised position of the sled bodies 4, 4 and the separators 5, 5. 8 is the sled body 4,
This is a lower limit stopper that restricts the lowering position of the separators 4 and 5. Further, 9 is a fertilization stopper that opens and closes the discharge port of the fertilization nozzle 6. When the fertilizing nozzle 6 is located above the ground surface, the sled bodies 4, 4 are in a forward-downward posture with respect to the ground surface,
In addition, the sled bodies 4, 4 are connected by the upper and lower links 3, 3a so as to assume a forward-upward posture when sliding on the ground. That is, 10 is a support frame provided at the rear part of the sled bodies 4, 4,
As shown in FIGS. 2 and 3, the support frame 10
The rising portion of the sled body 4 and the base frame 2 are connected by parallel upper links 3 and lower links 3a, so that the sled bodies 4, 4 can freely move up and down. By providing the pivot point 10a between the upper link 3 and the support frame 10 at a position forward of the pivot point 10b between the lower link 3a and the support frame 10, when the sled bodies 4, 4 are moving downward under their own weight, The sled body 4 is configured to be in a forward-down position with respect to the ground surface, and to be in a forward-up position when the sled bodies 4, 4 touch the ground surface and move upward. Note that the separators 5, 5 are also supported by the support frame 10. The fertilization stopper 9 is pivoted to a pivot point 10b between the support frame 10 and the lower link 3a so as to be movable up and down, and has a stop valve body made of an elastic body (sponge etc.) attached to an arm 11 that extends backward in a downwardly bent shape. 12 is attached, and the stop valve body 12 corresponds to the discharge port of the fertilizing nozzle 6 when the sled bodies 4, 4 are lowered. The tip end side of the arm 11 serves as a grounding guide part 13, and a weight 1 is attached to the corresponding part of the stop valve body 12.
4 is installed. The fertilization stopper 9 rotates downward under its own weight, but it may be biased downward by a spring. In addition, the fertilization stopper 9 may be fixed to the separators 5, 5 and moved up and down together with the separators 5, 5.

The fertilizer applicator 1 of the soil fertilizer applicator is shown in Figures 4 and 5.
As shown in the figure, a plurality of units are mounted on the tractor 15. That is, a horizontal tool bar 18 is attached to the tractor 15 via an upper link 16 and a lower link 17, and the fertilizer application device 1 is mounted on the tool bar 18 at equal intervals on its base frame 2.
is attached by a connecting arm 19 so as to be able to swing vertically and horizontally. A flexible fertilizer feeding pipe 21 extending from a fertilizer tank 20 mounted on the tractor 15 is connected to the fertilizing nozzle 6 via a pump 22.

Note that a weeding guide 23 is attached to the side surface of the tractor 15 to prevent crops from becoming entangled.
24 is a driver's seat of the tractor 15, and 25 is a handle. The fertilization section is the fertilization nozzle 6 as described above when the fertilizer is in liquid form, but is constituted by a groove-forming body when the fertilizer is in granular form.

Using a soil fertilizer applicator configured as described above,
To apply fertilizer into the soil between the crop rows, the fertilization device 1 is positioned between the crop rows, guided through the space by separators 5, and lowered. In this state, the sled bodies 4, 4 are close to the fertilizing nozzle 6, and the sled bodies 4, 4 touch the ground first, and then the fertilizing nozzle 6 is inserted into the soil. Then, the sled bodies 4, 4 touch the ground and the fertilizing device 1 rises under the pressure of the earth, so the fertilizing nozzle 6 is inserted into the soil to a certain depth, and the arm 11 of the fertilizing stopper 9 comes into contact with the ground and the fertilizing nozzle 6 and enters the fertilization state. The insertion depth of the fertilization nozzle 6 can be adjusted using an adjustment bolt 7. on the other hand,
When the fertilizing device 1 is raised, the sled bodies 4, 4 descend and approach the fertilizing nozzle 6, and the stop valve body 12 of the fertilizing stopper 9 comes into contact with the tip of the fertilizing nozzle 6, causing fertilizer to leak out from the fertilizing nozzle 6. is prevented.

By the way, as mentioned above, when the fertilizer application device 1 is above the ground surface, the sled body 4, which has moved downward due to its own weight,
Since the sled 4 maintains a forward and downward posture, when it is lowered between the crop rows, the sled bodies 4, 4 comb the crop and touch the ground. Therefore, the fertilizing nozzle 6 can be reliably inserted into the center between the rows, and the crops can be properly fertilized without being pushed down or damaged. Also,
When the sled bodies 4, 4 touch the ground, they are raised forward, so the sliding resistance is small, and fertilization can be carried out smoothly even in soft fields.

Effects of the invention As described above, the present invention provides an in-soil fertilizer applicator that applies fertilizer to the soil between the crop rows while moving along the crop rows. The fertilizing section is fixed to the base frame of the fertilizer applicator in a downwardly inclined manner toward the rear, and the support frame of the sled body is connected to the base frame through a link mechanism consisting of upper and lower links. When the fertilizing part is located above the ground surface by connecting the link mechanism so as to be able to move vertically, and by providing the pivot point between the upper link and the support frame of the link mechanism at a position forward of the pivot point between the lower link and the support frame. In this case, the sled body moves downward due to its own weight and maintains a forward downward posture.
When the fertilizer applicator is located underground, the sled body is configured so that it moves upward in contact with the ground surface and slides on the ground surface while maintaining a forward raised position, so that when the fertilizer applicator is lowered between the crop rows, In this case, the sled body in a forward-sloping position can guide the fertilizer application part to the center of the crop rows and land it on the ground without combing between the crop rows and damaging the crop. It has the effect of being able to carry out fertilizer application work smoothly because the sliding resistance is low in the upright position.

[Brief explanation of the drawing]

The drawings show one embodiment of the sub-soil fertilization machine according to the present invention, in which Fig. 1 is an overall plan view of the fertilization device, and Fig. 2 is an overall view of the fertilization device with the fertilization part located in the soil. 3 is an overall side view of the fertilization device with the fertilization part located above the ground surface, FIG. 4 is an overall side view showing the fertilization device mounted on a tractor, and FIG. 5 is a rear view of the same as above. It is. 1... Fertilizer application device, 2... Base frame, 3...
Upper link, 3a...lower link, 4,4...sled body,
5, 5... Separator (grass dividing board), 6... Fertilization nozzle, 7... Fertilization depth adjustment bolt, 8... Lower limit stopper, 9... Fertilization stopper, 10... Support frame, 10a, 10b... ... Pivot point, 12 ... Stop valve body, 15 ... Tractor.

Claims (1)

[Scope of utility model registration request] In a soil fertilizer applicator that applies fertilizer into the soil between crop rows while moving along crop rows, the fertilizer applicator is composed of a fertilizer applicator that applies fertilizer into the soil and a sled body that slides on the ground surface. The support frame of the sled body is connected to the base frame of the fertilizer applicator so as to be tilted downwardly toward the rear, and the support frame of the sled body is connected to the base frame so as to be movable up and down through a link mechanism consisting of up and down links. When the rotation fulcrum of the upper link and the support frame is located forward of the rotation fulcrum of the lower link and the support frame, and the fertilization part is located above the ground surface, the sled body, which has moved down due to its own weight, will move forward. A soil structure characterized in that the sled body maintains a downward posture and when the fertilization part is located underground, the sled body moves upward in contact with the ground surface and slides on the ground surface while maintaining a forward upward posture. Medium fertilizer applicator.