JP2003061419A - Hopper unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hopper structure that can inhibit the fertilizer from overflowing from the gap of the hopper lid. SOLUTION: In the hopper in which the upper opening of the hopper 49 for storing the fertilizer and agrochemicals is freely closed with the hopper lid 129, a screening layer 138 made of an elastomer is formed on the back face of the hopper lid 129 so that the screening material 138 may come into contact with the opening edges 117 of the upper face of the hopper 49. Inclined faces 118, 118 facing to the side face openings 120, 120 are formed on the partition parts 49b 49b, 49b of the hoppers 49, 49, 49 communicated through the side face openings 120, 120 inside so that the hopper lid 129 may compress the inclined faces 118, 118 and the screening material 38, as the hopper lid 129 is kept half-opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper device provided in, for example, a side-row fertilizer applicator mounted on a rice transplanter equipped with a seedling table and a planting claw for continuous seedling work.

[0002]

2. Description of the Related Art Conventionally, there has been a riding-type rice transplanter in which a side-row fertilizer applicator is mounted immediately after a driver's seat to perform fertilizing work simultaneously with planting work. Generally, a lateral strip fertilizer applicator includes a fertilizer hopper, a fertilizer feeding device located below the fertilizer hopper, and a fertilizing hose connected to the fertilizer feeding device. It is configured to apply fertilizer to more mud layers.

In the side-row fertilizer applicator constructed as described above, as a structure for preventing fertilizer from spilling from the gap between the hopper and the hopper when the fertilizer is supplied to the hopper, FIGS. As shown, it is proposed that a shielding member 161 having an L-shaped side cross section, which is integrally formed over substantially the entire width of the hopper lid 160, is vertically provided on the back surface of the hopper lid 160. The shield member 161 has a rotating shaft 162.
When the hopper lid 160 is rotated about the center and is opened, the L-shaped tip portion is locked to the rear wall surface 166a of the hopper 166, and the gap between the hopper 166 and the hopper lid 160 is eliminated. Therefore, it is intended to prevent the fertilizer from spilling during the fertilizer supply work.

[0004]

In the above-mentioned prior art, the partition portion 163 between the adjacent hoppers 166, 166 is formed with a side surface U-shaped opening edge, and the U-shaped frame 164 is formed therein. When it is provided and replenished with fertilizer,
Fertilizer is manually moved between the hoppers 166 and 166 so that the amount is substantially uniform. Therefore, the shielding member 1
A notch 161a is formed at a location corresponding to the partition portion 163 of 61 so that the partition portion 163 and the shielding member 161 do not interfere with each other. Therefore, when the hopper lid 160 is opened and the fertilizer replenishing work is performed, the fertilizer spills from the notch 161a. The spilled fertilizer and chemicals are stored in the hopper 16
It adheres to the equipment located below 6 and causes rust, and the work of removing the spilled fertilizer and chemicals to prevent rust is troublesome. Therefore, the hopper device according to the present invention proposes a structure for preventing fertilizer from spilling from the gap between the hopper and the hopper lid during the fertilizer replenishing work while maintaining good opening and closing accuracy.

[0005]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described.

That is, according to the first aspect of the present invention, in the hopper device in which the upper opening of the hopper for storing the fertilizer or the medicine, or the fertilizer and the medicine is closed by the hopper lid so as to be openable and closable, the elastic material is formed on the back surface of the hopper lid. Providing a shielding member,
The shielding member contacts the upper surface of the hopper with the hopper lid opened.

According to another aspect of the present invention, a side wall opening for communicating the inside of the hopper is formed by notching a partitioning part for partitioning the inside of the hopper into each strip unit, and the shielding member contacts the partitioning part facing the side surface opening. It is formed by a contacting slope.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described. FIG. 1 is an overall side view of a riding rice transplanter according to this embodiment, FIG. 2 is a plan view of the same, and FIG. 3 is a schematic perspective view of a vehicle body frame and a mission case. FIG. 4 is a front view of a side-row fertilizer applicator equipped with a hopper device according to this embodiment, FIG. 5 is a schematic plan view of the left side, FIG. 6 is a left side view, FIG. 7 is a left side enlarged view, and FIG. Similarly, it is a left side sectional view, FIG. 9 is a left side view showing a power take-out configuration of a lateral row fertilizer applicator, and FIG. 10 is a front sectional view showing a transmission mechanism of the lateral fertilizer applicator. 11 is a plan view showing a hopper device according to the first embodiment, FIG. 12 is a side sectional view of the same, FIG. 13 is a side sectional view of a state in which the hopper lid is partially open, and FIG. 14 is a hopper lid. FIG. 3 is a side sectional view showing a state in which is opened. FIG. 15 is a plan view showing a hopper device according to the second embodiment, FIG. 16 is a side view of the same, FIG. 17 is a side enlarged view of the same, and FIG. 18 is a side enlarged view of a state in which the hopper lid is also open. FIG. 19 is a side sectional view showing a conventional hopper device, and FIG. 20 is a rear sectional view showing the same.

First, the overall construction of the riding rice transplanter according to this embodiment will be described with reference to FIGS. 1 to 3. However,
The present embodiment is a riding rice transplanter equipped with a six-row planting section 9. Therefore, a side-row fertilizer applicator 30 to be described later includes six sets of fertilizer units 48, 48 ... The planting part 9 may be a four-row planting type or an eight-row planting type, and the side-row fertilizer applicator 30 is equipped with fertilizer applying units 48, 48 ... And

The passenger rice transplanter comprises a traveling vehicle 1 and a planting section 9 connected to the rear portion of the traveling vehicle 1. The front wheel and the rear wheel of the traveling vehicle 1 have front wheels 2.2, respectively.
The rear wheels 3.3 are suspended, and an engine 5 as a power unit is mounted on the front portion of the vehicle body frame 4 and covered with a hood 22. Preliminary seedling mounts 90 are arranged on both sides of the bonnet 22, and a steering handle 8 is also arranged above and behind the bonnet 22. The main shift lever 7 is provided around the steering handle 8 and on the bonnet 22.
5. A seedling joint lever 76, an accelerator lever 72, etc. capable of turning on and off all power are provided, a main clutch pedal 74 is provided on the lower left side of the steering handle 8, and a brake pedal 73 is also provided on the lower right side. ing.

A mission case 6 formed in the front-rear direction is disposed at the rear of the engine 5 and substantially at the center of the body frame 4 in the left-right direction. The front portion of the mission case 6 supports the front wheels 2.2 and the rear portion thereof. The rear wheels 3.3 are supported by. The mission case 6 is a vehicle body cover integrally formed with a step 20c located behind the hood 22 and in front of the driver's seat 7, steps 20b and 20b located on the side of the driver's seat, and a pedestal for installing the driver's seat 7. The vehicle body cover 20 is covered with a driver seat 7. Further, on the driver's seat 7 side of the vehicle body cover 20, there are a shift lever 77, a hydraulic pressure sensitivity adjusting lever 141, and a hydraulic pressure adjusting lever 141 for performing operations such as raising and lowering of the planting portion 9, turning on / off of planting, shifting at the time of planting, drawing markers, and the like. Stop lever 142
Etc. are provided.

At the rear portion of the traveling vehicle 1, a planted transmission frame 92 which constitutes the planted portion 9 is provided.
An elevating and lowering link mechanism 10 including a top link 11 pivotally supported on an upper portion of a hitch 94 provided on a front portion of the hitch 2 via a rolling fulcrum shaft 17 and a lower link 12 pivotally supported on a lower portion of the hitch 94. Are connected via.

The top link 11 which constitutes the lifting link mechanism 10 has a mounting portion 43a which is fixed to the upper portion of a rear frame 43 which has an inverted U-shape in rear view and which constitutes the vehicle body frame 4.
Is pivotally supported. On the other hand, in the lower link 12, the front portion of the support body 12a provided in the front portion of the lower link 12 and having a triangular shape in a side view is pivotally supported by the lower portion of the rear frame 43, and the upper and lower portions of the support body 12a are lifted and lowered. An elevating cylinder 15 that drives the link mechanism 10 up and down is connected.

The rear frame 43 is used as a support portion of the lifting link mechanism 10, and the mounting plate 3 is used.
A rear axle case 38, which is integrally provided on the rear portion of the mission case 6, is connected via 9. Further, above the rear frame 43, between the driver's seat 7 and the planting section 9, a lateral fertilizer applicator 30 to be described later is arranged.

As described above, the planting section 9 connected to the rear part of the traveling vehicle 1 includes a six-row planting type seedling table 91 and a plurality of planting claws 9.
3, 93, etc., and the seedling table 91 arranged at the front high and the low low, the lower rail 95 and the guide rail 9
6 is supported by the planted transmission frame 92 so as to be reciprocally slidable in the left and right directions, and the rotary cases 93a, 93a ,.
The planting claws 93, 93 ... On which the seedlings are planted while the tip draws an elliptical locus by the rotation of, are arranged in the rear part of the planting transmission frame 92.

A center float 9 is provided below the planting section 9.
7 and side floats 98, 98 are arranged. The center float 97 is arranged on the left-right center line of the traveling vehicle 1, and the side floats 98, 98 are arranged at symmetrical positions of the center float 97 to keep the left-right balance of the planting section 9 and The posture is stabilized so that the planting can be done accurately. Further, the center float 97 and the side floats 98, 98 are provided with side strip groovers 33, 33 ... Adjacent to the planting site of the seedlings in each planting strip, and the side strip groovers 33.3.
3 ... enters the mud layer toward the lower side of the ground contact surface, forms a groove for supplying fertilizer, and feeds it from the side-row fertilizer applicator 30 via the transfer hoses 32. The applied fertilizer is applied to the mud layer.

In this manner, the above-mentioned riding rice transplanter utilizes the power of the engine 5 to drive the front wheels 2.2 and the rear wheels 3.3 to drive them and to move the same, and to reciprocate left and right. Nail 93.
・ Take out by and plant seedlings continuously.
It is constructed so that fertilizer can be applied at the same time as planting.

The side-row fertilizer applicator 30 will now be described. First, the support structure of the lateral strip fertilizer applicator 30 will be described. As shown in FIG. 3, rear U-shaped rear frames 43 in a rear view are fixedly mounted on the rear portions of the left and right front and rear frames 44, 44, which are constituent members of the vehicle body frame 4, and the left and right side portions of the rear frames 43 are fixed. The step support frames 109, 109 each having an L-shaped plane are fixedly mounted on the base plate, and their connecting portions are reinforced by the support brackets 108, 108, respectively.
Then, the fertilizer application lower frame 106c is horizontally mounted on the left and right support brackets 108 in the left-right direction of the machine body via the stay. When the side-row fertilizer applicator 30 is not installed in the rice transplanter, the support brackets 108 may support a rear deck (not shown) to extend the vehicle body cover 20 rearward.

Further, as shown in FIGS. 4 and 5, fertilizer application side frames 101L and 101R are provided at both left and right ends of the fertilizer application lower frame 106c.
As with 06c, the fertilization front frame 106a and the fertilization rear frame 106b are the fertilization side frames 101, respectively.
It is installed between L and 101R. The front part of the fertilizer feeding case 47, which will be described later, is applied to the fertilizer application front frame 106a, the rear part of the fertilizer application case 47 is applied to the fertilizer application rear frame 106b, and the fertilizer application case 4 is applied to the fertilizer application lower frame 106c.
It supports the bottom of 7. Then, the fertilization front frame 106a, the fertilization rear frame 106b, the fertilization lower frame 106c, and the fertilization side frame 101L / 10.
The fertilization frame 106 is composed of 1R or the like.

The left fertilization side frame 101L has a hole for communicating the air tank 51 and the blower 50, and the left fertilization side frame 101L.
A mounting portion 103 for supporting the blower 50 is fixed to the L, and the stay 1 provided on the front portion of the blower 50 is fixed to the mounting portion 103.
04 is detachably and rotatably attached. Further, the fixing flange 102 provided on the side portion of the blower 50 and the side frame 101L are locked by the hook-like locking tool 28 provided on the fixing flange 102 side to fix the blower 50 and the side frame 101L. There is. In this manner, the fertilizer application frame 106 configured as described above is equipped with the air tank 51 and the blower 50, and the fertilizer hoppers 49, 49 ... And the fertilizer feeding cases 47, 47.
And the like to configure the side-row fertilizer applicator 30.

As shown in FIGS. 1, 2 and 4, the side-row fertilizer applicator 30 has a fertilizer hopper 49 for storing the granular fertilizer.
And a fertilizer feeding case 47, which is a fertilizer feeding unit, and which houses a fertilizer feeding device for feeding a predetermined amount of fertilizer, and a float 9
The blower 50 of the turbo blower type for discharging fertilizer to the side-grooving gutter 33 of 7.98 / 98 through the flexible type transfer hose 32, and the cylindrical air tank 51 are provided, and one end of the air tank 51 (book) The air blower 50 is attached to the left side in the embodiment, and six sets of six fertilizer feeding cases 47, ... Are arranged above the air tank 51. Then, the fertilizer unit 48 is fed from the fertilizer hopper 49, the fertilizer feeding case 47, the transfer hose 32 and the like.
The fertilizer application units 48, 48 ... Are arranged side by side in the lateral direction of the machine body.

Here, the fertilizer application units 48, 48, ...
・ Explain. However, fertilizer unit 48
.. have substantially the same configuration, and the structure thereof will be described in detail using one set of fertilization units 48. As shown in FIGS. 6 to 8, the lower outlet 49a of the fertilizer hopper 49 is fitted to the inlet 47a on the upper side of the upper surface of the fertilizer feeding case 47 provided in the fertilizer application unit 48, while the lower surface of the fertilizer feeding case 47 is attached to the lower surface. A bottom hopper lid 56 that is inclined forward (the upper end side is inclined forward and the lower end side is inclined rearward) is detachably fixed. The bottom hopper lid 56 is made of a hard synthetic resin and is formed in a funnel shape (inverted conical shape), and a joint portion 56b is integrally formed under the bottom hopper lid 56. 56b communicates with each other through an outlet 56a having a small mouth area.

The front end of the joint portion 56b is
Joining pipe 5 for fitting the front end into the air tank 51
9 is connected and connected to the rear end portion, and the joint portion 56b
The transfer hose 32 is fitted to the rear end portion, and the air from the blower 50 is blown out from the air tank 51 to the joint part 56b and the transfer hose 32, and the outlet 56a of the bottom hopper lid 56 to the middle of the joint part 56b. The fertilizer which falls to the side is air-transported to the position of the side-grooving groove device 33 via the transport hose 32.

Further, as a fertilizer feeding device, an intake 61
an inlet plate 61 having a and a plurality of feeding ports 6 on the same circumference.
A feeding plate 63 having 3a, 63a, ... and a discharge port 65a
And a bottom hopper lid 5 with a fertilizer feeding case 47 and a substantially circular flat plate-shaped plate 61, 63, 65.
It is arranged in a multi-layered manner with respect to 6.

Then, a feeding shaft 66 is rotatably supported in a forwardly inclined posture inside the fertilizer feeding case 47, and each plate 61.6
3. The lower end side of the feeding shaft 66 is passed through the central portion of 3.65, the inlet plate 61 and the outlet plate 65 are locked to the fertilizer feeding case 47,
The payout shaft 66 is allowed to freely rotate with respect to each of the plates 61 and 65, and the payout plate 63 is supported by the payout shaft 66 so as to be engaged therewith.
6, the feeding plate 63 is forcibly rotated, and the intake 6
The fertilizer entering the delivery port 63a from 1a is moved to the discharge port 65a and dropped in the direction of the outlet 56a.

A residual fertilizer outlet 47e is provided in the front part of the fertilizer feeding case 47, from which the residual fertilizer in the fertilizer hopper 49 and the fertilizer feeding case 47 can be surely discharged and removed to the outside after the fertilizing work is completed. I am trying. As shown in FIG. 8, the residual fertilizer outlet 47e is provided with a shutter 82, and the shutter 82 can be opened and closed by operating the shutter operating lever 84. In this way, the residual fertilizer outlet 47e is opened and closed by opening and closing the shutter 82. An elbow pipe 85 made of a synthetic resin material (for example, hard rubber) is connected to the residual fertilizer outlet 47e, and a flexible discharge hose 86 is connected to the elbow pipe 85. At the time of fertilizer discharge work, the discharge hose 86 is extended in the lateral direction of the machine body and discharged.

Next, the transmission mechanism of the side-row fertilizer applicator 30 to the fertilizer feeding device will be described. As shown in FIGS. 8 to 10, the engine 5 serving as a drive source for driving the side-row fertilizer applicator 30.
The output from is branched to the planting section 9 side and the side-row fertilizer applicator 30 side by a power take-out mechanism 31 provided in the front-rear halfway portion of the mission case 6 and taken out. The power to the side-row fertilizer applicator 30 taken out by the intermediate shaft 35 is the intermediate shaft 35.
The continuously variable transmission input shaft 34b connected to the rear end inputs the continuously variable transmission 34, which will be described later, to the continuously variable transmission 3
The power that has been shifted by 4 is output from the continuously variable transmission output shaft 34c.
Is transmitted to a transmission shaft 37b connected to the transmission shaft 37b, and further the bevel gear 37a provided at the rear end of the transmission shaft 37b and the transmission output shaft 3
It is transmitted to the shift output shaft 36 via a bevel gear 36a provided on the gear 6. During this time, the amount of fertilizer fed out from the fertilizer feeding case 47 is adjusted by the continuously variable transmission 34, and the safety clutch device 37 acts on the transmission shaft 37b. A metering dial 29 for shifting the continuously variable transmission 34 to adjust the feed amount of fertilizer.
Is provided behind the driver's seat 7 and in a state of protruding upward from a hole 20a formed in the vehicle body cover 20,
It is configured so that an operator can operate it while being near the driver's seat 7.

The variable speed output shaft 36 is linked and interlocked with the feeding input shaft 41 projecting from the drive case 46 fixed to the support plate 106d arranged substantially in the center of the fertilizer frame 106 via the rotary shaft 40. At the same time, a feeding drive shaft 45 extending in the left-right direction of the machine is linked and linked to the feeding input shaft 41 via a pair of bevel gears 42. The feeding drive shaft 45 includes a plurality of shafts 45a, 45b,
45c ..., which are connected to each other by a connector 69, and each fertilizer application unit 48 has a clutch device 70 interposed therebetween, which is located in front of the side-row fertilizer applicator 30. Clutch lever 81 ・ 81 ・ 81
Depending on the left and right and central two fertilizer application units 48.4
8 can be selectively driven, and each fertilization unit 48, 48 ... Can be selectively driven by the row stopping operation rods 71, 71, ... Also located at the front of the side row fertilizer applicator. I am trying.

In such a structure, the power transmitted from the feeding drive shaft 45 is supplied to the pair of bevel gears 68.
When the feeding shaft 66 is driven via 66a, the fertilizer in the fertilizer hopper 49 is fed by the joint portion 5 by a predetermined feeding amount.
The fertilizer that has fallen in the middle of 6b is directly conveyed to the position of the side-grooving gutter 33 through the conveying hose 32. In addition, as shown in FIG. 1, the transfer hose 32 extends from the joint portion 56b in front of the seedling placing table 91 to the side groove grooving device 33 while keeping the inclination angle with respect to the ground as large as possible. The fertilizer transported by the transport hose 32 to the side-grooving gutter 33 is allowed to flow out smoothly without being clogged in the transport hose 32 to prevent uneven fertilization.

Next, a first embodiment of the hopper device according to the present invention will be described. The hopper device is mainly a fertilizer hopper 49.
And a hopper lid 129. The side-row fertilizer applicator 30 including the hopper device according to the first embodiment includes six fertilizer application units 4 for six rows so as to correspond to the six-row planting section 9.
8 and 48 are provided, and six fertilizer hoppers 49 are provided in these six sets of fertilizer application units 48 and 48.
49 ... is one hopper lid 129.1 for each of the three left and right bodies.
29 are provided. However, the structure of the hopper device according to the present invention is not limited to this. For example, when four sets of fertilizer application units are provided, left and right fertilizer hoppers 49, 49 or four fertilizer hoppers are provided. 49/49
.., one hopper lid 129 is provided for each of the side fertilizer applicators 30.
The number of hopper lids 129 and the like are appropriately selected according to the number of hoppers. Fertilizer hoppers 49, 49 ... of the hopper device according to the present embodiment
The structures of the left and right three rows are substantially the same, and the structure of the fertilizer hoppers 49, 49, 49 for the right three rows will be described below.

As shown in FIG. 4, FIG. 11 and FIG. 12, the fertilizer hopper 49, which is a three-piece, three-piece fertilizer hopper, is independently formed as a single piece.
Two sets of 49.49 are arranged adjacent to each other in the left-right direction, and three sets of hoppers 49.49.49 are arranged in the front-rear direction (direction perpendicular to the center of rotation of the hopper lid) inside. The partition parts 49b, 49b, ... Are partitioned, and the partition parts 49b, 49b ... Are notched so as to have a U-shape in a side view that opens upward and side surface openings 120, 120 are formed. Then, a U-shaped edge frame 127 in a side view
・ 127 fertilizer hoppers for the right three rows 49 ・ 49 ・
49 partitioning parts 49b, 49b ...
Fixed with 8.128 ..., the fertilizer hopper 49
・ 49 are connected. Similarly, the fertilizer hoppers 49, 49, 49 for the left three articles are also connected. In the present embodiment, the partition parts 49b, 49b ... Are U-shaped in a side view, but the side opening part 120 is formed in the partition parts 49b, 49b.
The shape is not limited as long as it is formed, and the partition portions 49b, 49b, ... May be concave in side view, for example.

As described above, the fertilizer hoppers 49.4 for the three articles
The height of the lowermost part of the partition parts 49b, 49b, ... Framed by the edge frames 127, 127, that is, the height of the lowermost part of the side surface openings 120, 120, is set to the fertilizer hopper 49. Is formed to be lower than the upper opening edge 117. However, the height of the lowermost portion of the side opening 120, 120 is set higher than the mesh net plates 126, 126, 126 installed in the fertilizer hoppers 49, 49, 49. And
The inside of each fertilizer hopper 49, 49, 49 for three articles is made to communicate with each other through the side opening 120, 120.
・ Fertilizer can be moved between 49 and 49 for leveling.

Furthermore, a single hopper lid 12 is provided at the upper opening of each fertilizer hopper 49, 49, 49 for the three fermenters.
9, the hopper lid 129 and the fertilizer hopper 4 are provided.
The inside of 9, 49, 49 is made of transparent synthetic resin that can be seen from the outside. In this way, the fertilizer hopper 49
49 ... The flow and amount of fertilizer inside can be easily viewed.

The hopper lid 129 is a fertilizer hopper 49.
The rear part of the hopper lid 129 is rotatably supported on the upper part of the rear surface of the 49 and 49, and is configured to be lifted and opened from the front. Hopper lid 129 and fertilizer hopper 49/49 /
49 is a hinge 133.133 integrally formed of a synthetic resin material having corrosion resistance.
The hopper lid 12 with respect to the fertilizer hoppers 49, 49, 49 with the constricted portions 133a, 133a of 33 as the rotation center 116.
9 is provided so as to be rotatable. The hinges 133, 133 used in this embodiment are installed on the rear two places of one hopper lid 129 provided on the three fertilizer hoppers 49, 49, 49 and on the left and right fertilizer hoppers 49, 49. The upper part is fixed to the hopper lid 129, and the lower part is fixed to the fertilizer hopper 4 through the constricted parts 133a and 133a.
It is fixed at 9/49.

In addition, three fertilizer hoppers 49, 49, 49
Of the fertilizer hoppers 49 located in the center of the left and right, a plastic protrusion 135 is fixed to the front side, or
9, a plastic hook 136 that is detachably locked to the projection 135 is fixed to the hopper lid 129, and the projection 135 and the hook 136 are engaged to fix the hopper lid 129 to the closed position. I have to.

Then, the center of rotation 116 of the hopper lid 129
On the lower side of the hopper lid 129, which is on the side, a shielding member 138 is provided in substantially the entire width on the left and right. In this embodiment, the shielding member 138 is vertically provided from the back surface of the hopper lid 129, and the shielding member 138 is located in the side opening 120 when the hopper lid 129 is closed in the fertilizer hoppers 49, 49, 49. Partition parts 49b, 49b, 49b, 49b, ...
It is in a position where it does not come into contact with, or does not come into pressure contact with it even if it comes into contact. The shielding member 138 is an elastic body made of a synthetic resin material and having a substantially L-shaped side cross section, and has a hopper lid 129.
Is integrally formed over substantially the entire width of the left and right sides, and due to the characteristics of the material, it can return to its original shape even if it is somewhat deformed and bent.

On the other hand, on the side of the fertilizer hoppers 49, 49, 49, the partition parts 49b, 49b.
The slopes 118, 118 are formed on the upper side (upper side of the edge frames 127, 127) facing the side opening 120, 120 and on the side of the rotation center 116 of the hopper lid 129. As shown in FIG. 13, the inclined surfaces 118, 118 are brought into contact (surface contact) with the shielding member 138 while the hopper lid 129 is being opened or closed, and thus the shielding member 138 is formed. The sloping surfaces 118 and 118 press-contact with each other to function as a stopper of the hopper lid 129, and the hopper lid 129 can maintain its opening in a state where it is partially opened.

Then, as shown in FIG. 14, the hopper lid 12
When the 9 is opened to the maximum, the fixing members 121 and 12 for fixing the hinges 133 and 133 to the hopper lid 129.
1 ... In the same manner as the hinges 133, 133, the hopper lid 12
The locking members 119 and 119 fixed to the outside of 9 are
The hinges 133, 133 are engaged with the locking projections 133b, 133b integrally formed on the fertilizer hopper 49, 49 fixed side of the hinges 133, 133, and the shield member 138 and the upper opening edge 117 of the fertilizer hopper 49 are in pressure contact with each other to form a stopper. It keeps the hopper lid 129 in the maximum opened state and prevents the hopper lid 129 from unintentionally closing due to the influence of wind or the like during the fertilizer replenishing work.

Further, when the hopper lid 129 is open, the shielding member 138 closes the gap 144 between the opening edge 117 of the fertilizer hoppers 49, 49, 49 and the hopper lid 129. Therefore, the fertilizer hoppers 49, 49, 49 are prevented from being scattered on the opposite side by the hopper lid 129 standing on one side of the fertilizer hopper 49.
The fertilizer that collided with 9 is hopper lid 129 and fertilizer hopper 49.
It is configured to prevent the fertilizer remaining on the upper surface of the shielding member 138 from falling into the fertilizer hoppers 49, 49, 49 when the hopper lid 129 is closed while preventing the fertilizer from dropping downward from the gap 144 between the 49, 49. ing.

In this way, the shielding member 138 has both the function of preventing the fertilizer from spilling and the function of maintaining the opening degree of the hopper lid 129, so that the hopper lid 129 can be used at the time of replenishing the fertilizer except for rainy weather. Is fully opened to the maximum opening angle for good replenishment work that is not affected by the hopper lid 129.
Slopes 118 formed on the partitions 49b, 49b, ...
The hopper lid 129 is pressed against the 118 and the shielding member 138.
Rain is fertilizer hopper 49.49.
The replenishment work is carried out while maximally preventing the intrusion into the inside.

Next, a second embodiment of the hopper device according to the present invention will be described. In the second embodiment, unlike the first embodiment, the above-mentioned shielding member 138 is not provided on the hopper lid 129, and the hinge 133 itself that connects the hoppers 49, 49, 49 and the hopper lid 129 functions as a shielding member. The main feature is that they are trying to fulfill.

As shown in FIGS. 15 to 18, the hopper lid 12 for closing the upper opening of the fertilizer hoppers 49, 49, 49.
9 is provided, and a hinge 154 is provided in the lower portion of the rear end of the hopper lid 129 so as to have a substantially horizontal width. The hinge 154 is a plate-like elastic body made of a synthetic resin material, and its upper part is fixed to the hopper lid 129, and its lower part is fixed to the fertilizer hoppers 49, 49, 49 via the rotation center 116. Hopper lid 12
9 has ribs 129b integrally formed on the front and left and right side surfaces, but there is no rib on the rear surface and there is a hinge 154 instead of the rib on the rear surface of the hopper lid 129. Therefore, the fertilizer hoppers 49, 49 ... The hinge 154 covers the upper side of the rear surface of the hopper 49, and the rotation center 116 of the hopper lid 129 is
Is the upper end of the rear end of the fertilizer hopper 49.49.49.

As described above, the hopper lid 129 and the fertilizer hopper 4 are used.
By rotatably connecting 9/49/49 with a hinge 154, the fertilizer hoppers 49/49/49 and the seedling table 91 located behind the fertilizer hoppers 49/49/49 do not interfere with each other. It is possible to secure the maximum capacity of the fertilizer hoppers 49, 49, 49. Also, the hopper lid 12
9 and the gap 144 between the fertilizer hoppers 49, 49, 49 is minimized, and the presence of the hinge 154 in the gap 144 prevents the fertilizer from spilling from the gap 144 during the fertilizer replenishment work, and The structure is highly waterproof.

Then, as shown in FIG. 17, stoppers 155, 155 are fixed by fixing members 152, 152, .. to the upper left and right sides of a hinge 154 which is elongated in the left-right direction. The stoppers 155 and 155 are hinges 1.
It is provided on the upper surface of the hopper lid 129 via 54,
When the hopper lid 129 is closed, the rear portion 155a of the stopper 155 projects rearward from the hopper lid 129 in a side view. As shown in FIG. 18, the fertilizer hopper 49 is opened via the hinge 154 by opening the hopper lid 129.
The state in which the rear portion 155a of the stopper 155 is in contact with 49 and 49 is the state in which the hopper lid 129 is opened to the maximum extent, and the stopper 155 prevents the hopper lid 129 from rotating further rearward.

[0045]

Since the present invention is constructed as described above,
The following effects are achieved.

That is, as described in claim 1, in the hopper device in which the upper opening portion of the hopper for storing the fertilizer or the medicine, or the fertilizer and the medicine is openably and closably closed by the hopper lid, the elastic material is formed on the back surface of the hopper lid. Provided a shielding member,
Since the shielding member is configured to contact the upper surface of the hopper with the hopper lid being opened, the fertilizer is prevented from spilling from the gap between the hopper lid and the fertilizer hopper when the fertilizer hopper is replenished with fertilizer.

According to a second aspect of the present invention, a partition portion for partitioning the inside of the hopper into a plurality of strips is cut out to form a side opening portion for communicating the inside of the hopper, and the shielding member is provided at the partition portion facing the side opening portion. Since the abutting slope is formed, the slope and the shielding member come into pressure contact with each other during the opening of the hopper lid to function as a stopper, and the hopper lid is held open halfway, so that the hopper lid can be opened in rainy weather. The fertilizer replenishment work can be done without completely opening.

[Brief description of drawings]

FIG. 1 is an overall side view of a riding rice transplanter according to an embodiment.

FIG. 2 is a plan view of the same.

FIG. 3 is a schematic perspective view of a body frame and a mission case.

FIG. 4 is a front view of a side-row fertilizer applicator including the hopper device according to the present embodiment.

FIG. 5 is a schematic plan view of the left part of the same.

FIG. 6 is a left side view of the same.

FIG. 7 is a left side enlarged view of the same.

FIG. 8 is a left side sectional view of the same.

FIG. 9 is a left side view showing a power take-out configuration of a side-row fertilizer applicator.

FIG. 10 is a front cross-sectional view showing a power transmission mechanism of a side-row fertilizer applicator.

FIG. 11 is a plan view showing a hopper device according to the first embodiment.

FIG. 12 is a side sectional view of the same.

FIG. 13 is a side cross-sectional view showing a state in which the hopper lid is also partially open.

FIG. 14 is a side sectional view showing a state in which the hopper lid is also open.

FIG. 15 is a plan view showing a hopper device according to a second embodiment.

FIG. 16 is a side view of the same.

FIG. 17 is an enlarged side view of the same.

FIG. 18 is an enlarged side view of the state where the hopper lid is also open.

FIG. 19 is a partial side sectional view showing a conventional hopper device.

FIG. 20 is a partial rear sectional view of the same.

[Explanation of symbols]

30 Side row fertilizer applicator 47 Fertilizer feeding case 48 Fertilizer unit 49 fertilizer hopper 49b partition 116 center of rotation 117 Top opening edge 118 slope 120 side opening 129 Hopper lid 133 hinge 138 Shielding member

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B052 BC05 BC08 BC09 BC16 CA14                       EA15                 2B121 CB09 CB24 CB33 CB45 CB61                       EA26 FA06

Claims (2)

[Claims] 1. A hopper device in which a fertilizer or a chemical agent, or an upper opening of a hopper for storing a fertilizer and a chemical agent is closed by a hopper lid so as to be openable and closable, and a shielding member formed of an elastic body is provided on a back surface of the hopper lid, A hopper device, wherein a shielding member is configured to contact the upper surface of the hopper with the lid opened. 2. A side opening that connects the inside of the hopper is formed by cutting out a partition that partitions the inside of the hopper into strips, and a slope that the shielding member abuts is formed in the partition facing the side opening. The hopper device according to claim 1, wherein: