JPH084824Y2 - Drain hose structure of fertilizer application - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a fertilizer application device that can be used for a rice transplanter for riding, a deep fertilizer for riding, a direct seeder for riding, a field crop management machine for riding, and more specifically, for a riding machine. The present invention relates to a drain hose structure of a fertilizer applicator configured to extract residual fertilizer in a fertilizer tank disposed below a provided front side deck part.

[Prior art]

The riding rice transplanter is composed of a lifting link mechanism installed at the rear of the four-wheeled passenger body and a planting section connected to the back of this lifting link mechanism. Is equipped with a fertilizer applicator that applies fertilizer in the soil at the same time when seedlings are planted by the planting section.

This fertilizer application is configured to include a fertilizer pump section that discharges fertilizer in the fertilizer tank from the fertilizer nozzle via the sub-tank, and the details are as follows. That is, a pair of left and right fertilizer tanks are arranged in front of the passenger machine body, and a fertilizer pump section is arranged on one rear side of the passenger machine body. In this fertilizer pump section, a plurality of screw pumps are arranged on a circular locus, and each discharge side of each screw pump is connected to a plurality of fertilizer application nozzles attached to the planting section through respective connecting pipes. The fertilizer discharge port of each of the fertilizer application nozzles is arranged at a position facing the soil having a predetermined depth.

The fertilizer pump section is provided with a sub tank for supplying fertilizer to the plurality of screw pumps.
The sub-tank and the fertilizer tank are connected by a fertilizer introduction hose, the fertilizer in the fertilizer tank is introduced into the sub-tank through the fertilizer introduction hose, and the fertilizer in the sub-tank is fed by a plurality of screw pumps to a plurality of fertilizer application nozzles. It is being sent under pressure.

[Problems to be solved by the invention]

By the way, as a fertilizer application apparatus of this type, for example, Japanese Patent Application Laid-Open No.
No. 249307, No. 62-104627, No. 62, No. 62 and No. 62
Japanese Patent Laid-Open No. 104629 has been proposed. These conventional fertilizer applicators have a structure in which a pair of left and right fertilizer tanks are arranged on both the left and right sides of the bonnet installed in the front of the machine.Therefore, allow a space for the drain hose to be provided for extracting fertilizer from the fertilizer tank. However, when the fertilizer tank is arranged below the front deck part of the passenger body so as not to impair the driver's forward visibility, there is a problem that there is no place for arranging the drain hose.

Therefore, the present invention has been made in view of the above-mentioned conventional circumstances to solve the problem, and relates to a fertilizer application apparatus in which a fertilizer tank is provided below the front deck parts provided on the left and right of the passenger aircraft. In addition, the drain hose structure of the fertilizer application allows the drain hose to be stored comfortably in a narrow space, and the fertilizer in the fertilizer tank can be easily extracted after the fertilizer application is finished, and the water can be efficiently washed. The purpose is to do so.

[Means for solving problems]

The present invention which achieves the above-mentioned object is a fertilizer tank on the front side,
In a fertilizer applicator having a fertilizer pump having a sub-tank on the rear side, the fertilizer tanks are respectively disposed below the left and right front step portions provided on a four-wheel type passenger aircraft,
Confluence pipes communicating below the both fertilizer tanks are arranged in a lateral direction in a substantially straight line, and a supply pipe and a connecting portion are respectively provided rearward on both left and right end sides of the confluence pipes, and the supply pipes have rear ends having the sub tanks. Is connected to the front end of the fertilizer introduction hose connected to, and the base end of a bendable drain hose is connected to the connection portion, and the free end side of the drain hose is held along the front-rear direction.

[Action]

Therefore, even in the fertilizer applicator having the fertilizer tank 13 on the front side and the fertilizer pump section 22 having the sub-tank 23 on the rear side, the left and right front step parts 11 on the left and right sides provided on the four-wheel type passenger aircraft Fertilizer tanks on both the left and right sides
The lower parts 13 are communicated with each other by a merging pipe 14 which is provided laterally below.

The other end of the fertilizer introduction hose 36 whose front end is fixed to one side of the merging pipe 14 is connected to the sub-tank, and the drain hose 15 which is normally held along the front-rear direction is provided on the other side of the merging pipe 14. Since it is provided, the drain hose 15 etc. can be stored comfortably in a narrow space below the fertilizer tank,
After the fertilizing work, the drain hose 15 can be operated to quickly extract the residual fertilizer in the fertilizer tank 13, and the drain hose 15 can be used to efficiently perform water washing.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be described.

In FIGS. 1 and 2, the passenger rice transplanter is a passenger aircraft J configured in a four-wheel format including front wheels and rear wheels (not shown).
The lifting link mechanism 1 is provided at the rear of the lifting link mechanism 1 and the planting portion P connected to the rear of the lifting link mechanism 1. The lifting link mechanism 1 is composed of an upper link 2 provided in the center and lower links 3 provided on both left and right sides. The lifting link mechanism 1 can be raised and lowered by a hydraulic drive mechanism (not shown) including a hydraulic cylinder and a piston. Controlled.

A mission case 4 is arranged on the front side of the passenger body J, and a base end of an engine frame 5 extending forward is fixed to both front side walls of the mission case 4, and the mission case 4 is It is driven by an engine (not shown) fixed above the engine frame 5. The engine is covered with a bonnet 6, a steering wheel 7 is provided behind the bonnet 6, and a driver's seat 9 is provided behind the steering wheel 7. The driver's seat 9 from above the mission case 4 to the rear
A flat deck portion 10 having a flat upper surface is provided downwardly of the flat deck portion 10. The flat deck portion 10 is provided in a wide width across the machine width.

Front and rear deck portions 11 are formed on the left and right sides of the above-described bonnet 6 from the rear flat deck portion 10 to the front. The front deck portion 11 is a flat deck portion 10.
The height of the ground is higher than that of the front deck unit 11
And the flat deck unit 10 are inclined between the connection unit 12 and the flat unit 10.
The driver can go from the ridge or the like to the flat deck unit 10 through the front side deck unit 11 and the connecting deck unit 12. The front deck parts 11 on both the left and right sides are provided at a low height that does not impair the forward visibility of the driver sitting in the driver's seat 9.

A pair of left and right fertilizer tanks 13 are fixed below the left and right deck parts 11, respectively.
The lower front side of the tank is integrally connected by a horizontal merging pipe 14 that connects the two tanks 13 to each other. The merging pipe 14 is provided so as to pass through the mounting holes of the pair of left and right engine frames 5, and the merging pipe 14 has a connecting portion 14a which projects rearward from the engine frame 5 and faces rearward.
The connecting portion 14a is provided with
A drain hose 15 provided with 6 and having an intermediate portion formed to be bendable is provided. The drain hose 15 is normally held in the front-rear direction with the free end side facing rearward by a hook fixed to the right side of the engine frame 5, but the drain hose 15 is detached from the hook and is in a hanging state. By removing the fertilizer, the fertilizer in the fertilizer tank 13 can be quickly taken out into another container, and a water hose can be further inserted into the drain hose to easily wash the fertilizer introduction hose side. Further, as shown in FIG. 1, a supply lid 13a located below the front deck part 11 is provided on the upper surface of the fertilizer tank 13 on the right side,
Fertilizer is simultaneously supplied to the left and right fertilizer tanks 13 from the supply port without the supply lid 13a on one side. The left and right front side decks 11 and the bonnet 6 are integrally fixed and centered on the front side fulcrum. It can be opened and closed.

A pair of left and right front axles 17 whose base ends are fixed to both side walls of the above-mentioned case 4 are extended outward and fixed cases 19 having kingpin shafts (not shown) are fixed to both ends thereof. Below the case 19 is a rotating case that can be rotated in the left-right direction around the kingpin axis.
20 are provided respectively, and the front wheels are fixed to the left and right front wheel shafts supported by the rotating cases 20, respectively. Each front wheel shaft is driven from a transmission case 4 through a transmission mechanism passing through a front axle 17, and an arm 21 fixed to the rotating case 20 is connected to the steering wheel 7 via a connecting rod. By doing so, the front wheels are steerable.

A fertilizer pump section 22 located on the right side is disposed in the machine body below the driver's seat 9, and the fertilizer pump section 22 includes a sub tank 23 located on the front side and a fertilizer pump 24 located behind the sub tank 23. This fertilizer pump consists of 24
As shown in FIG. 4, six screw pumps 25 are arranged on a circular locus, and one end of each connecting pipe 27 connected to the discharge side of each screw pump 25 has an indicator 31 at the other end. It is connected to the upper part of each fertilizer application nozzle 30 attached to the left and right sides of the float 29 provided in the planting part P via the fertilizer. The lower part of the fertilizer application nozzle 30 is provided in the soil so that the fertilizer can be applied to a predetermined depth.

The planting section P is provided with a seedling mounting table 32 that reciprocates laterally to the left and right, and under the seedling mounting table 32, six planting rods 33 are installed at predetermined intervals to oppose each other. A rod 33 divides the seedling soil for one strain from the pine-shaped seedlings placed on the seedling placing table 32 and plantes it in a field, and at the same time as this seedling planting, fertilizer is applied to a predetermined depth.

The drive shaft 34 extending rearward from the mesh case 4 is linked to a transmission mechanism in a rear wheel drive case 35 fixed to the rear, and the pair of left and right rear wheels are driven via the rear wheel drive case 35. To be done.

Below the sub-tank 23, there is integrally provided a connecting case 23a which is formed so as to project downward as shown in FIG. 4, and an inlet port which is provided in the connecting case 23a and faces the front side, and a merging pipe 14 Is connected to the supply pipe 40 that is connected to the left side and protrudes rearward of the engine frame 5 and that is connected to the rear side by a fertilizer introduction hose 36 in the front-rear direction that passes below the front axle 17, but on the sub-tank 23 side. Between the introduction port and the supply port of the supply pipe 40 on the merging pipe 14 side, the sub tank 23 side is provided low so that there is a height H difference in a side view, and the fertilizer introduction hose 36 is connected in a substantially linear shape. Therefore, it is possible to improve the fluidity of the fertilizer introduced in the order of the fertilizer tank 13 → the confluent pipe → the fertilizer introduction hose 36 → the sub tank 23. The fertilizer introduction hose 36 is detachably held by a plurality of hooks 36a provided on the body of the fertilizer introduction hose so as not to loosen in the middle. The fertilizer introduction hose 36 may be arranged in a substantially horizontal posture in a side view.

Further, as shown in FIG. 4, a drain hose having a detachable lid 37 at the tip and a bendable middle portion is formed at a rearward-facing outlet provided in the connection case 23a below the sub tank 23. The base end of 39 is attached, and this drain hose 39 is normally arranged along the outer periphery of the fertilizer pump 24 which is arranged at the rear of the sub tank 23 and is formed in a substantially circular shape, and the upper part of the drain hose 39 stands upright. Although it is detachably held on the hook 41, remove it from the hook 41, put it in the hanging state, and then cover it.
By removing 37, the fertilizer introduction hose 36 and sub tank
The residual fertilizer in 23 can be quickly taken out to another container. It is also possible to insert a water pipe for water washing into the drain hose 39 to wash the inside of the sub tank 23 and the inside of the fertilizer introduction hose 36 in which the joint 43 is removed and the joint 43 is grounded.

The supply pipe 40 on the side of the confluent pipe 14 and the fertilizer tank 13 side of the fertilizer introduction hose 36 are connected by a removable joint portion 43 as shown in FIG. That is, on the side of the supply pipe 40, the joint 44a having a screw on the outer diameter is attached to the band 4
4b, and also on the fertilizer introduction hose 36 side, a joint 45a having a collar is attached by a band 45b, and a detachable ring 46 having a screw on the inner diameter is fitted and inserted into this joint 45a to form a joint 44a and a joint 45a. Since a packing is provided on the surface connecting with each other, by the tightening and loosening operation of the detachable ring 46,
The supply pipe 40 and the fertilizer introduction hose 36 can be easily attached and detached. The joint portion 43 may be provided in the middle portion of the fertilizer introduction hose 36.

Further, the passenger aircraft J is provided with a PTO shaft 47 projecting rearward from the mission case 4, and the planting portion P is driven by a universal joint shaft (not shown) connected to the rear end of the PTO shaft 47. , With the sprocket fixed to this PTO shaft 47,
A transmission chain via a speed change and an intermittent mechanism is wound between the sprocket fixed to the drive shaft for driving the fertilizer pump, and the series of power intake section 50 for driving the fertilizer pump 24 is the sub-tank 23. It is provided on the front side. That is, the details are the same as the structure shown in FIG. 1 of Japanese Patent Application Laid-Open No. 62-249307, so the description thereof will be omitted. However, each drive shaft concentrically connected to each screw pump 25 has a sub-tank 23. Small-diameter spur gears are fixed to the shaft ends that extend through the front to the front side, respectively, and the plurality of spur gears are respectively meshed with the large-diameter spur gears located in the central portion. One of the drive shafts is structured to be driven from the PTO shaft 47 via the speed change / interruption mechanism, and the power intake portion 50 is covered with a safety cover 49.

[Effect of device]

The present invention configured as described above has the following effects.

Since the front fertilizer tanks are respectively disposed on the left and right sides of the passenger body below the front step portions, the driver's front view can be improved.

In addition, when installing the confluence pipe, fertilizer introduction hose, and drain hose in the lower space of the fertilizer tank, which is extremely narrowed by arranging the front fertilizer tank under the front step on both left and right sides of the passenger aircraft, use the confluence pipe. It is provided in a substantially straight line in the lateral direction, and a supply pipe and a connecting portion are provided rearward on both left and right ends of this confluent pipe,
The front end of the fertilizer introduction hose is connected to this supply pipe, the base end of the drain hose is connected to the connecting part so that they do not overlap vertically, and the free end side of this drain hose is held in the front-back direction. Even in the lower space, the fertilizer introduction hose and the drain hose can be favorably stored in a state of being dispersed left and right.

In addition, the drain hose was connected to the rearward connecting part of the confluence pipe to hold the free end side in the front-back direction to eliminate sagging, so that the drain hose caught on the surface of the field during work traveling and came off. There is no such thing.

Furthermore, since fertilizer introduction hoses and drain hoses are provided at both ends of the confluent pipes that are arranged in a substantially straight line in the lateral direction, after the fertilizer application work, the residual fertilizer is removed, and then a water hose is inserted into the drain hose and the fertilizer introduction hose side is removed. It can be easily washed and is convenient.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is a side view of a riding rice transplanter with front wheels and rear wheels omitted, and a fertilizer application device, FIG. 2 is a plan view of FIG. 1, and FIG. Is a side view of the joint portion shown in cross section above the center line, and FIG. 4 is a longitudinal rear view of the fertilizer pump showing the drain hose. J ... passenger plane, P ... planting part, 6 ... bonnet, 11 ... front step part, 13 ... fertilizer tank, 14 ... confluent pipe, 15 ...
Drain hose, 17 ... Front axle, 22 ... Fertilizer pump part, 23 ... Sub tank, 23a ... Connection case, 24 ... Fertilizer pump, 36 ... Fertilizer introduction hose, 40 ... Supply pipe.

Claims (1)

[Scope of utility model registration request] 1. A fertilizer applicator comprising a fertilizer tank on the front side and a fertilizer pump having a sub-tank on the rear side, wherein the fertilizer tanks are provided on the left and right front step portions of the four-wheeled passenger aircraft, respectively. The confluent pipes that communicate with the lower part of both fertilizer tanks are arranged in a substantially straight line in the lateral direction, and the supply pipe and the connecting portion are respectively provided rearward on the left and right ends of the confluent pipe, and the rear end of the supply pipe is provided. A fertilizer applicator that connects the front end of a fertilizer introduction hose whose end is connected to the sub-tank, connects the base end of a bendable drain hose to the connecting part, and holds the free end side of the drain hose in the front-rear direction. Drain hose structure.