JP2540501Y2 - Fertilizer applicator nozzle mounting device - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to relates to a fertilizer machine to discharge the fertilizer in the field, detail the good buffering action of fertilization nozzle
The present invention relates to a fertilizer application nozzle mounting device that can easily and reliably set a reference position of a fertilizer application depth when the fertilizer application nozzle is mounted on a float.

[0002]

2. Description of the Related Art In general, a fertilizer that continuously injects fertilizer into a field in a streak form or intermittently injects into a dotted line is configured to apply fertilizer by a fertilizer nozzle set at a constant fertilizer depth. You .

In such a fertilizer applicator,
When a load exceeding a certain load is applied to the fertilizer nozzle, the fertilizer
Fertilizer nozzle buffer means for raising and retracting the swarf
Is known from Japanese Utility Model Laid-Open No. 2-111222,
Adjust the fertilizer application nozzle to the specified fertilization depth position.
The fertilizer application depth adjusting device is also based on Japanese Utility Model Publication No. 1-35133.
It is known.

[0004]

The present invention is to provide a way, the above-mentioned fertilization
The buffer means of the nozzle is provided with a compression
The fertilizer is applied with a fertilizer nozzle.
Another reasonable installation configuration in relation to depth adjustment means
In the fertilization depth adjustment device
Has special gain when adjusting the fertilizer application depth of the fertilizer nozzle.
It is necessary to use a
Was. The present invention is a nozzle buffer means so as to move the fertilization nozzle tip upwards when the load exceeding a predetermined load fertilization nozzle is applied, Misao fertilization depth adjustment means
Together are interposed in work mechanism, by this <br/> and providing a reference position setting means comprising adjusting stopper for setting a reference position of fertilization depth position of fertilization nozzle by utilizing the configuration of the nozzle buffer means, fertilization Always accurately and accurately regardless of the depth adjustment position
The cushioning effect of the chisel is provided, and the positioning work when installing the fertilizer nozzle can be performed easily and reliably.
Accordingly, an object of the present invention is to provide a fertilizer that solves the above problems.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and in a fertilizer applicator provided with a fertilizer nozzle for discharging fertilizer into soil, a fertilizer application depth of a fertilizer nozzle is adjusted by a bracket. Fertilization depth switching lever connected via
And the lever for changing the fertilization depth is
Pivotally attached to the bracket at the distal end side from the pivoted portion.
When the separated part is pressed downward by the elastic member,
In addition, a fertilizer depth switching lever and bracket
Via an adjustment stopper that can adjust the connection position with the
And the leading end of the fertilization depth switching lever is
It is characterized in that it is locked so as to be adjustable up and down .

[0006]

According to the above-mentioned structure, the fertilizer is fed from the tips of the fertilizing nozzles 51, 72, 79 into the soil based on the fertilizing depth adjusted by the fertilizing depth adjusting means 57 as the fertilizer applicator 1 moves forward. Discharged. At this time, when there is a portion where the tillage is shallower than the fertilization depth adjusted by the fertilization depth adjusting means 57, or when there is a hard obstacle such as a stone in the soil, the tips of the fertilization nozzles 51, 72, and 79 are used. Abuts against a plow or a stone, etc., the nozzle cushioning means 61, 65, 57a
The tips of the fertilizing nozzles 51, 72, 79 are moved upward against the urging force of No. 5. And the fertilizing nozzles 51, 72,
When the contact of the tip of the tip 79 with an obstacle such as a plow or a stone is released, the urging force of the elastic member 65 causes the fertilizer nozzles 51, 7
2, 79 The tip is moved downward, and the adjustment stopper 6
1 is a fertilizing nozzle 51, 72, 79 and fertilizing depth adjusting means 5
7 is regulated to a predetermined position, and the fertilizing nozzles 51, 72, 7
The tip portion 9 returns to the fertilization depth adjusted by the fertilization depth adjusting means 57.

When the reference position of the fertilization depth position of the deep fertilization nozzle 51 with respect to the float 32 is set by reference position setting means including an adjustment stopper 61 for setting the reference position of the fertilization depth position of the fertilization nozzle, FIG. after attaching the left side the float 32 deep fertilization nozzle 51 as shown in via the base over scan 36 1, long bored the rising portion 36a of the protruding pin 59 and the base 36 of fertilization depth switching lever 57 In a state where the engagement with the hole 36d is released, the fertilization depth switching lever 57 is rotated clockwise, and the grass burial blade attached to the front of the deep soil injection nozzle 51 in front of the soil penetration portion 51b. With the front edge of 51c contacting the front end of the hole 36b on the bottom surface of the base 36, a reference matching portion 36g provided on the rising portion 36a of the base 36 and a fertilization depth switching lever 57 As the opposing gap between the lower surface are parallel
By rotating the eccentric shaft 61b of the adjustment stopper 61, the set position of the fertilization depth switching lever 57 is adjusted up and down to make the opposed gap parallel. Thus, the deep fertilizer application nozzle 51 can be used without using a special gauge member as in the related art.
The reference position of the fertilization depth position can be easily set.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings. As shown in FIGS. 7 and 8, the riding rice transplanter 1 has a towing vehicle 2 at the front and a deep fertilizer application section 3 at the rear. The deep fertilizer application section 3 is configured to receive power from the towing vehicle 2 and to be towed. The towing vehicle 2 has front wheels 5,
5 and a traveling body 7 supported by rear wheels 6 and 6. The traveling body 7 has an engine 9 mounted on the front upper portions of front wheels 5 and 5. Further, fertilizer tanks 10 for shallow layer are arranged on the left and right sides of the engine 9, and a suction hose 11 is connected to the fertilizer tanks 10 for shallow layer. The suction hose 11 extends to the rear of the fuselage 7 and is connected to and connected to a shallow fertilizer application pump 12 disposed in the center of the fuselage 7. A sub tank 13 is provided below the shallow fertilizer application pump 12.

A driver's seat 15 is provided on the body 7 behind the engine 9, and a deep fertilizer tank 16 is disposed on the right side of the driver's seat 15. Further, a deep layer fertilization pump 19 is provided at a portion of the body 7 behind the driver's seat 15.
Is fixed, and the deep-layer fertilizer application pump 19 is connected to the deep-layer fertilizer tank 16 via a suction hose 20. A hitch 22 is provided in front of the deep fertilizer application section 3, and the hitch 22 and the towing vehicle 2 are provided.
Is connected to a top link 23a of the lifting link 23 and lower links 23b, 23b so as to be able to move up and down. PT is provided between the top link 23a and the lower links 23b, 23b.
An O-axis is provided. Further, an indicator 25 is fixed substantially at the center upper portion of the lower link 23b, and a number of inlets of the indicator 25 are connected to the shallow fertilizer pump 12 and the deep fertilizer pump 19 by tubes 26 and 27, respectively. Are linked. A plurality of outlets of the indicator 25 are respectively connected to and connected to a switching valve 29, and one of the outlets of the switching valve 29 is connected to the sub-tank 13 via a return tube 30.

Below the deep fertilizer application section 3, a left side float 32, a center float 33, and a right side float 35 are provided. As shown in FIGS. 1 and 6, a base 36 is fixed to the upper surface of the left side float 32 via a shallow fertilizer application nozzle mounting base 32a. The base 36 is fixed to the left side float 32 by bolts 36e, 36e and nuts 36f, 36f.
It is mounted and fixed to the left side float 32 together with a reinforcing plate 32d provided on the lower surface. On the left and right sides of the shallow fertilizer application nozzle mounting base 32a, shallow fertilizer application nozzles 37 and 39 are provided to project obliquely rearward and obliquely downward in a side view. The shallow fertilizer nozzles 37 and 39
The shaft 41 is inserted through a cylindrical bracket 40 fixed to the shallow fertilizer application nozzle mounting base 32a.
Brackets 42, 42 fixed to both ends of the nozzle and brackets 43, 4 fixed to each of the shallow fertilizing nozzles 37, 39.
3 is fixedly connected to connect the left and right shallow fertilizing nozzles 37 and 39, and can be interlocked and adjusted by an adjusting mechanism 45 so as to be vertically rotatable. The shallow fertilizer application nozzles 37 and 39 are arranged so as not to protrude outside the left and right ends of the left side float 32 in plan view. Joints 37a and 39a are connected to and communicate with the base ends of the shallow fertilizer application nozzles 37 and 39, respectively, and the joints 37a and 39a and the outlet of the switching valve 29 are connected by tubes 46 and 46, respectively. .

As shown in FIGS. 1, 2 and 3, a boss member 50 is fixed to one of the rising portions 36a of the base 36, and the boss member 50 is provided with a deep fertilizing nozzle 51. The base shaft 51a is a nozzle rotation fulcrum 51d.
Are pivotally supported up and down around the center. A hole 36b on the bottom surface of the base 36, a hole 32b of the shallow fertilizing nozzle mounting base 32a, a hole 32c of the left side float 32, and a hole 32e of the reinforcing plate 32d for mounting the base 36 have soil of the deep fertilizing nozzle 51. Middle penetration part 51b
Is inserted obliquely downward and rearward. The tip of the soil penetration part 51b of the deep fertilization nozzle is arranged so as not to protrude from the rear end of the left side float 32 in plan view. A joint 51 is attached to the base shaft portion 51a.
e has passed coupling and communication, it is connected by a tube 52 to the outlet of the switching valve 29 and the Jiyointo 51e.
Further, a bracket 53 extends forward and is fixed to a portion of the base shaft portion 51a on the joint 51e side. Also, four elongated holes 36d, 36d, 36d, and 36 are formed in a rising portion 36c of the base 36 opposite to the rising portion 36a.
36d is open. The upper three slots are for setting the deep fertilizer application nozzle 51 at the fertilizer application position, and the fertilizer application depth is set to 15 cm, 12 cm, and 9 cm from the upper row. The slot at the bottom is for setting the deep fertilizer application nozzle 51 at the storage position along the lower surface of the left side float 32. And the bracket 53
Bolt 55 and nut 5 on the nozzle base shaft portion 51a side.
The base end side of a fertilization depth switching lever 57 composed of a leaf spring member is rotatably stopped and fixed by 6 and 56, and a projection pin 59 is fixed to the other end of the fertilization depth switching lever 57. The protruding pins 59 are connected to the elongated holes 36d, 36d.
d, 36d, and 36d. The front portion of the bolt 55 of該施fertilizer depth switching lever 57 has been opened stopper hole 57a, the said stopper hole 57a rotatably retaining-nut 60 to the bracket 53
The fixed adjustment stopper 61 is inserted therethrough. Stopper hole 57a has a larger diameter than the shaft diameter of the adjusting stopper 61 fertilization, regulation stopper 61 has a movable flexible feature within the stopper hole 57a, the large diameter of the boss portion 61a from the stopper hole 57a It is stopped from the depth switching lever 57. The adjustment stopper 61 is connected to the fourth
As shown in the drawing, the eccentric shaft portion 61b and the screw portion 61c are provided, and by rotating the eccentric shaft portion 61b, the contact position with the stopper hole 57a can be adjusted. Is screwed with the nut 60.

A spring support 62 is provided horizontally on the front right side of the adjustment stopper 61 of the bracket 53, and an adjustment bolt 63 is mounted on the spring support 62.
The one end 66 of the spring 65 is received and supported via. The spring 65 is connected to the bracket 53.
Is wound around and supported by a spring support shaft 53a provided laterally,
Its outer end is supported by a washer 53b so that it cannot be pulled out. The other end of the spring 65 is brought into contact with the upper surface of the fertilizer depth switching lever 57, biases the lever 57 in a downward direction, by the biasing force of the spring 65, adjusting stopper <br/> Pas The eccentric shaft 61b of 61 is the stopper hole 57a of the lever 57
And the projection pin 59 of the lever 57 is connected to the elongated hole 36d, 36d, 36 of the rising portion 36c of the base.
d, 36d, the fertilization depth of the deep fertilization nozzle 51 is set.
By selecting a combination with d, 36d, 36d, 36d, the fertilization depth of the deep fertilization nozzle 51 can be switched. Further, the adjusting bolt 6
3, the biasing force of the spring 65 is adjusted, and by rotating the eccentric shaft 61b of the adjustment stopper 61, the fertilization depth of the deep fertilization nozzle 51 based on the set fertilization depth is set. The position is adjusted.

When setting the reference position of the fertilization depth position of the deep fertilization nozzle 51 with respect to the left side float 32, as shown in FIG.
1 is attached to the left side float 32 via the base 36, and then the projection pin 59 of the fertilization depth switching lever 57
A long hole 36 opened in the rising portion 36a of the base 36
In the state of disengagement with the d., the fertilization depth switching lever 57 is rotated clockwise as shown in FIG.
b The front edge of the grass straw buried blade 51c attached to the front is brought into contact with the front end of the hole 36b on the bottom surface of the base 36. At this time, at the upper end of the rising portion 36a of the base 36, a reference matching portion 36g which is notched obliquely is formed, and the lower surfaces of the fertilization depth switching levers 57 are configured to face in parallel. ing. Then, with the front edge of the grass straw buried blade 51c abutting on the front end of the hole 36b on the bottom surface of the base 36, the reference matching portion 36g and the lower surface of the fertilization depth switching lever 57 are opposed to each other. When the gaps are parallel, the normal reference setting position is set, and when the opposing gaps are not parallel, the eccentric shaft 61b of the adjustment stopper 61 is splinted.
The setting position of the fertilization depth switching lever 57 is adjusted up and down by rotating the urging force against the urging force of the bush 65 to make the opposed gaps parallel. Fertilization depth position of the deep fertilization nozzle 51 without using a more conventional, such as special gauge member to the reference position setting <br/> hand stage consisting adjusting stopper 61 for setting a reference position of fertilization depth position of the fertilization nozzle Can be easily set. After setting the reference position of the deep fertilizing nozzle 51 in the above procedure, the projecting pin 59 of the fertilizing depth switching lever 57 is connected to one of the long holes 36d formed in the rising portion 36a of the base 36 as shown in FIG. To set the deep fertilizer application nozzle 51 to the fertilizer application position or the storage position.

As shown in FIG. 6, a base 70 is fixed to the center float 33.
On the left side, a shallow fertilizer application nozzle 71 is provided so as to be inclined obliquely rearward and downward in a side view. A joint 71 a is connected to and communicates with the base end of the shallow fertilizer application nozzle 71, and the joint 71 a and the outlet of the switching valve 29 are connected by a tube 46. Further, a deep fertilization nozzle 72 is attached to the right side of the base 70 in the same manner as the deep fertilization nozzle 51. A joint 72c is connected to and communicates with the base shaft 72a of the deep fertilization nozzle 72. The joint 72c and the outlet of the switching valve 29 are connected by a tube 52. The shallow fertilizing nozzle 71 and the deep fertilizing nozzle 72 are arranged near the planting strip at the center of the center float 33 and opposite to each other with respect to the planting strip. Furthermore,
The distal end of the deep fertilizing nozzle 72 in the soil penetration portion 72b is arranged so as not to protrude from the rear ends of the left and right side floats 32 and 35 in plan view.

The right side float 35 has the same construction as the left side float 32, and the base 7
5. Shallow fertilizer nozzles 76 and 77 and deep fertilizer nozzle 7
9 are provided. The shallow fertilizing nozzles 76 and 77
It is arranged so that it may not protrude outside the right and left ends of the right side float 35 in plan view.
Are arranged so as not to protrude from the rear end. As shown in FIG. 7 and FIG. 8, the upper part of the floats 32, 33, and 35 behind the deep fertilizer application section 3 extends over
The base planting apparatuses 80 are arranged at equal intervals, and are configured to plant five rows of seedlings. Further, the planting device 80
A seedling stand 82 is disposed above and at a slant toward the front. Further, as shown in FIG. 9, the discharge amount of the deep fertilizing nozzle 72 is set to approximately half of that of the other deep fertilizing nozzles 51 and 79. Then, as shown in FIG. 10, the distance from each of the planting condition of deep fertilization nozzles 51,79 tip S _1, the distance from the ground surface and l _1, from the planting condition of deep fertilization nozzle 72 tip of the distance _{S 2,} and the distance from the ground surface and _{l 2, S 1> S 2} , l 1 <l
Deep fertilizing nozzles 51 and 7 so that the relational expression ₂ is satisfied.
2, 79 are arranged. Thereby, the deep fertilizing nozzles 51 and 79 apply fertilizer between the streaks, and the deep fertilizing nozzle 72 near the planting streak and other deep fertilizing nozzles 51 and 79.
It is configured to fertilize deeper.

The present embodiment has the above-described configuration, and the floating rice transplanter 1 is moved forward by the float 3
2, 33, 35 equalize the field scene and deep fertilizer application section 3
Is kept substantially horizontal. Then, the five seedlings set on the seedling holder 82 are planted in five fields in the field scene by the five planting devices 80. The paste or liquid fertilizer for shallow layer is sent from the fertilizer tanks 10 for shallow layer to the fertilizer pump 12 for shallow layer via the suction hose 11, and the fertilizer pump 12.
Are fed to the indicator 25 and a number of switching valves 29 through a number of tubes 26 via the number of tubes 26, and the switching valves 29 allow the fertilizing nozzles 37, 39, 71, 76,
It is switched to reach 77. The multiple switching valves 29
By operating respectively, the fertilizer for shallow layer can also be pressure-fed to the sub-tank 13 via the return tube 30,
This makes it possible to stop. The fertilizer that has been switched to communicate with the shallow fertilizer application nozzle has five tubes 46 and joints 37a, 39a, 71a, 76a, 77a.
And fed to the shallow fertilizing nozzles 37, 39, 71, 76, 77 through the
A predetermined amount is discharged into the ground from the tip of the nozzle 7.

On the other hand, the paste for deep layer or liquid fertilizer is sent from the fertilizer tank for deep layer 16 through the suction hose 20 to the fertilizer pump 19 for deep layer, and from a number of outlets of the fertilizer pump 19 through a number of tubes 27. The pressure is fed to the indicator 25 and a number of switching valves 29, and the switching valves 29 are switched to communicate with the deep-layer fertilization nozzles 51, 72, 79. By operating each of the plurality of switching valves 29, the fertilizer for deep layer is returned through a tube as in the case of the shallow layer, though not shown, although not shown.
It can also be pressure-fed to a sub-tank provided between the pump 6 and the deep-layer fertilization pump 19, thereby making it possible to block. The fertilizer that has been switched to communicate with the deep fertilizer application nozzle has three tubes 52 and joints 51c and 72.
c, 79c, the base shaft portions 51a, 7 of the deep fertilizing nozzle
Based on the fertilization depth set by the fertilization depth switching lever 57, a predetermined amount is discharged from the tip of the soil infiltration part 51b, 72b, 79b of the deep fertilization nozzle into the ground. At this time, the discharge amount of the deep fertilization nozzle 72 is substantially half that of the other deep fertilization nozzles 51 and 79. As the riding rice transplanter 1 moves forward, five seedlings are planted on the field by the five planting devices 80, and the fertilizer for the shallow layer is applied to the shallow fertilizing nozzles 37, 39, 71, 76, 77.
, The fertilizer for deep layer is discharged to the deep underground at a predetermined position with respect to the planting streak by the deep fertilizing nozzles 51, 72, 79.

When there is a portion where the cultivator is shallower than the fertilization depth set by the fertilization depth switching lever 57, or when there is a hard obstacle such as a stone in the soil, the deep fertilization nozzle may be used in the soil. When the invading portions 51b, 72b, 79b contact the cultivator or the stone and turn upward, the deep fertilizing nozzle base end shaft portions 51a, 72a, 79 resist the urging force of the spring 65.
a and the brackets 53, 53, 53
It rotates downward about 72d and 79d. With the rotation downward of the bracket 53, bolt 55 and adjustment
The node stopper 61 also rotates downward, and the eccentric shaft 61b of the adjustment stopper is released from contact with the upper end of the stopper hole 57a, and rotates downward in the stopper hole 57a. 57 is moved downward by the bolt 55, and the projecting pin 59 of the lever 57 moves downward in the elongated hole 36d. Furthermore, the soil penetration part 51 of the deep fertilizer nozzle
When the b, 72b, 79b is further rotated upward, the projection pin 59 contacts the rear end of the long hole 36d, and the upward rotation of the deep fertilizing nozzle into the soil 51b, 72b, 79b is performed. Stopped. And the soil penetration part 51 of the deep fertilization nozzle
When the contact of the b, 72b, and 79b with the shallow portion of the cultivator and obstacles such as stones is released, the biasing force of the spring 65 causes the soil penetration portions 51b, 72b, and 79b to rotate downward. The base shafts 51a, 72a, 79a and the brackets 53, 53, 53 move to the pivots 51d, 72d, 79.
It rotates upward about d. As the bracket 53 rotates upward, the bolt 55 and the adjustment stopper 6
1 also rotates upward, the eccentric shaft 61b of the adjustment stopper comes into contact with the upper end of the stopper hole 57a, and the rotation is stopped. At the same time, the fertilization depth switching lever 57 and the projection pin 59 are interlocked with the bolt 55. And the projection pin 59 returns to the central portion of the elongated hole 36d. As a result, the downward rotation of the deep fertilizing nozzle into the soil penetration portions 51b, 72b, 79b is stopped, and the fertilizing depth is returned to the fertilizing depth set by the fertilizing depth switching lever 57.

Further, deep fertilizing nozzles 51, 72, 79,
Are arranged symmetrically to each other, and the underground fertilizer application section 3 has an even underground resistance acting on the left and right sides.
It is possible to improve the rolling performance by 3, 35. Further, since the deep fertilizer application nozzles 51, 72, and 79 are inside the left end of the left side float 32 and inside the right end of the right side float 35 and do not protrude outward,
The auxiliary wheels can be used without hindrance, and the work on the ridge can be efficiently performed. Further, when a certain load or more is applied to the soil infiltration portions 51b, 72b, 79b of the deep fertilization nozzle, the soil intrusion portions 51b, 72b, 79 of the deep fertilization nozzle resist the urging force of the spring 65.
b rotates upward, so that the deep fertilizing nozzles 51 and 7
2,79 can be secured without damaging it, and the floats 32,33,35
The rolling performance of the deep fertilization work unit 3 can be improved without moving in conjunction with the first, second, and seventh operations. Ma
In addition , the soil penetration portions 51b, 72b, 79 of the deep fertilizer nozzle
b to stop the evacuation above the projecting pin 5 for switching the fertilization depth
9 and the long hole 36d, the number of components is not increased, and the nozzle shock absorber can be made compact. Further, the reference position setting means comprising adjusting stopper 61 by utilizing the configuration of the nozzle buffer means 65, 57a for setting a reference position of fertilization depth position of fertilization nozzles 51,72,79, the nozzle buffer means 65, 57a To
The gauge function for setting the reference position of the fertilization depth can also be provided, and the fertilization nozzles 51, 72, 79
Easy and reliable positioning work when mounting Although the above-described embodiment uses a method of continuously injecting fertilizer into a streak into a field as a deep fertilizer, the invention is not limited to this, and a method of intermittently injecting fertilizer in a dotted line may be used. it can. In addition, the application range is not limited to riding rice transplanters, and it can be applied to walking rice transplanters.In addition to rice transplanters, it can be used for paddy fields such as direct sowing machines in submerged soil, deep fertilizer fertilizer, etc. It can also be applied to fertilizer applicators.

[0020]

[Effect of the Invention] According to the present invention configured as described above,
For example, it is possible to adjust the fertilization depth of the fertilizer nozzle.
When a load exceeding a certain load is applied to the fertilizer application nozzle,
Since the fertilizer nozzle retreats upward due to the spill buffer,
Proper fertilization work without damaging the fertilizer nozzle
It can be carried out. Further, the fertilization depth can be adjusted by utilizing the configuration of the nozzle buffer means.
The reference position setting consisting of an adjustment stopper for setting the reference position
Means for attaching the fertilizer nozzle to the fuselage
It is possible to quickly set the fertilizer application depth reference position of the fertilizer nozzle.
It is possible to obtain a highly accurate fertilization depth. And these nozzle buffer means and adjustment stopper
Reference position setting means connected to the fertilizing nozzle.
Between the bracket to be applied and the lever for changing the fertilization depth.
Therefore, the configuration becomes extremely compact
Easy handling, especially setting of fertilizer depth reference position
The means utilizes the urging force of the elastic member in the nozzle buffer means.
With the fertilization depth switching lever urged in one direction
Set the reference position by rotating the adjustment stopper.
Because the accuracy of the reference position setting is high,
In addition, the configuration is simple and the adjustment operation is easy. Etc. effect
To play. In addition, the said code | symbol is for referring to drawings and does not limit a structure at all.

[Brief description of the drawings]

FIG. 1 is a side view of a fertilization depth adjusting device and a nozzle buffer portion in a state where a reference position of a deep fertilization nozzle is set.

FIG. 2 is a plan view of the fertilizer application depth adjusting device and the nozzle buffer device according to the present invention.

FIG. 3 is a side view of a fertilizer application depth adjusting device and a nozzle buffer unit in a state where a deep fertilizer nozzle is in a normal state.

FIG. 4 is a side view of the fertilizer application depth adjusting device and the nozzle buffer device in a state where the deep fertilizer application nozzle is rotated upward and retracted.

5A and 5B are diagrams showing an adjustment stopper, FIG. 5A is a perspective view of the adjustment stopper, and FIG. 5B is a front view of the adjustment stopper.

FIG. 6 is a plan view of a shallow layer and a deep layer fertilizing nozzle portion.

FIG. 7 is a side view of the riding rice transplanter to which the present invention is applied.

FIG. 8 is a plan view of the riding rice transplanter to which the present invention is applied.

FIG. 9 is a sectional view showing the positional relationship between the planting streak and the deep fertilization position according to the present invention.

FIG. 10 is a detailed sectional view showing the positional relationship between the planting streak and the deep fertilization position according to the present invention.

[Explanation of symbols]

Reference Signs List 1 work machine (riding rice transplanter) 36 base 36g reference matching part 51 fertilizing nozzle (deep fertilizing nozzle) 53 fertilizing depth adjusting means (fertilizing depth switching lever) 57a nozzle buffer means (stopper hole) 61 adjusting stopper 65 elastic member (Spring) 72 Fertilizer nozzle (deep fertilizer nozzle) 79 Fertilizer nozzle (deep fertilizer nozzle)

Claims (1)

(57) [Scope of request for utility model registration] 1. A fertilizer having a fertilizer nozzle for discharging fertilizer into the soil, wherein the fertilizer depth of the fertilizer nozzle is determined by a braquet.
Can be adjusted with the fertilization depth switching lever connected via a nut
So that the fertilization depth switching lever has its proximal end
A part pivotally attached to the bracket and separated from the pivoted part toward the distal end
Position is pressed downward by an elastic member,
The connection position between the fertilizer depth switching lever and the bracket
The fertilizer is applied with an adjustment stopper that can adjust the
The tip side of the depth switching lever is automatically adjusted up and down by a locking device.
A fertilizer application nozzle mounting device for a fertilizer, characterized in that it is locked in place .