JPH0713822Y2 - Pest control device - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention is configured so that a spray pipe for spraying chemicals in a pest control machine can be flexibly bent, and even if the spray pipe hits a crop or an obstacle, the crop is damaged or the spray pipe is damaged. -The present invention relates to a self-propelled control device capable of preventing deformation.

Conventional technology and problems to be solved As a self-propelled pest control device, a tractor-pulled type and a dedicated pest control device are known, but the conventional self-propelled pest control device is one that sprays chemicals from above the crop (boom). The sprayer is common, and the chemicals do not easily adhere to the leaves in the lower part of the crop and the back side of each leaf, so there is a drawback that the control effect is likely to be incomplete even if the corner control work is performed. Therefore, it is conceivable to put a spray pipe for spraying chemicals between crop rows and spray it from the side of the crop, but if the spray pipe is left inside the crop, the spray pipe may hit an obstacle or contact the crop during work. (It is likely to occur when the trajectory of the aircraft is corrected), causing problems such as damage and deformation of the injection pipe and damage to crops.

Therefore, in the present invention, in the device in which the disinfecting machine S is detachably connected to the traveling machine body 1 through the elevating link 7, the chemical spraying jet pipe 26 of the exterminating machine S is appropriately arranged in the machine width direction. An elastic joint 26c, which is made of an elastic material and connects the upper pipe 26a and the lower pipe 26b, which hang down in a comb shape at intervals and which is vertically divided at the base end portion or the middle portion of each injection pipe 26, is provided. However, the above-mentioned problems are to be solved by covering the outer circumference of the connecting ends of the elastic joint 26c, the upper pipe 26a and the lower pipe 26b with a coil spring.

Action When crop control work is to be performed, set each jet tube to the crop posture with the intervening crop lines, and then run the traveling machine to start the control work. If the jet pipe hits an obstacle or a crop during the work or gets caught on the crop, the elastic pipe part bends and escapes freely, so the jet pipe is damaged or deformed or the crop is sprayed. It is not damaged by the pipe. Further, when the external force is no longer applied, the injection pipe immediately elastically returns to the proper working posture.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a paddy field vehicle having front wheels 2 and rear wheels 3 and an engine 4 mounted at the front (a rice transplanter in the illustrated example). In this traveling machine (this machine), a planting part M (see FIG. 3) is detachably attached to the rear part of the vehicle through a parallel link (elevating link) 7 including a top link 5 and a lower link 6. The portion M can be vertically moved by a hydraulic cylinder connected to the top link 5 while maintaining a horizontal posture. R is a hydraulic operating lever, and one lever R is used for hydraulic valve and PTO.
Both clutches can be controlled simultaneously.
Reference numeral 8 denotes a main unit side hitch provided on the free end side (planting portion M connection side) of the elevating link 7, and the working unit side hitch 9 is detachably connected to the main unit side hitch 8. This machine side hitch 8
The structure of the work machine side hitch 9 is illustrated in FIGS. 4 and 5. That is, the hitch 8 on the machine side has the upper and lower pin insertion holes 8
It is connected to the free end side of the top link 5 and the lower link 6 through the connecting pins 10 and 11 which are penetrated in a and 8b, and has a U shape in plan view, and the upper end corner portion is on the rear surface side. A trough-shaped pin receiving seat 8c is integrally fixed at a position, and a lateral pin fitting groove 8d is formed at a midway portion in the longitudinal direction.
In addition, a hook 13 for locking, which is located in the vicinity of the pin insertion groove 8d and pivots up and down around the pivot pin 12, is provided in the hitch 8 on the machine side. You can operate it from the driver's seat. On the other hand, the work machine side hitch 9 is wider than the machine side hitch 8 and has a U-shape, and like the machine side hitch 8, the front side is opened and the pins 15 and 16 are provided.
Is vertically suspended, and the hitch portion H can be attached / detached with one touch by the above-mentioned hand operation. Further, the control machine S is integrally connected to the work machine side hitch 9. That is, on the back side of the working machine side hitch 9,
A power sprayer 17, which is linked to a PTO shaft (not shown) via a drive shaft 17a, is fixed in a machine frame 18 that also serves as a stand. Above the power sprayer 17, a frame body 19 has a substantially front half portion. Lifting link 7
The hitch 9 on the working machine side and the machine frame 18 are integrally fixed to each other while facing upward, and the chemical tank 2 with the agitator 20a is provided in the frame body 19.
0 is arranged as close to the machine side as possible and is detachably fixed by a tightening band 21. 22 is a rescue step, 23
Is a suction pipe, 24 is a discharge pipe, and the discharge pipe 24 is connected to a jet pipe 26 described later through the agitator 20a and the pipe 25. Although not shown in the figure, the agitator 20a has a built-in impeller and a flow dividing valve that rotate at the discharge pressure of the drug, and forcibly rotates the stirring impeller shaft penetrated into the tank 20 by the rotation of the impeller.
It is designed to stir the drug in the tank. It should be noted that the discharge pressure (discharge amount) of the power sprayer 17 is set to a high value in advance, and excess chemical is circulated into the tank 20 via the return pipe 27.

28 is a boss fixed to the rear portion of the frame body 19. The round boss stay 29 is provided on the boss 28, in which a plurality of injection pipes 26 are vertically arranged in a comb shape at appropriate intervals in the machine width direction. In addition, both wings are foldably inserted so as to be centered around the pivot 29a. Above-mentioned spout 26
Has a plurality of injection holes 33 at least laterally, and the wire 31 can be operated by operating a lever 30 provided on one side of the driver's seat a.
From the action posture (Fig. 1 and Fig. 2 solid line b) and the crop space d that intervene in the crop space d where the jet pipe 26 should be sprayed by moving the arm 29a integrated with the stay 29 back and forth via the It is configured to be able to switch to the retracted non-acting posture (the same virtual line B).

By the way, each of the injection pipes 26 is configured to be bendable with an elastic material K interposed at a base end portion or an intermediate portion thereof, and its specific configuration is illustrated in FIGS. 6 to 8. That is, as shown in FIG. 6 and FIG.
a and a lower tube 26b are divided into two parts, and the upper tube 26a and the lower tube 26b are appropriately separated and opposed to each other, and are connected so as to be bendable in the entire circumferential direction via an elastic joint 26c made of a rubber tube or a vinyl tube, The outer periphery is elastically held by a coil spring 26d, and the one shown in FIG. 8 has an elastic material K made of rubber or the like integrally connected to the base end portion of the injection pipe 26, K
Is fixed to the stay 29. 32 is a hose.

By the way, the front wheels 2 and the rear wheels 3 are provided with weed guides 34, 35 which cover the sides of the wheels via stays 34a, 35a to prevent the crops from being caught by the wheels.

As shown in FIGS. 9 and 10, the rotary tiller B for the tillage is detachably attached to the main unit 1 of the paddy field vehicle equipped with the fertilizer applying device P for the fluidized fertilizer so that the fertilizer is applied simultaneously with the tillage and weeding. It was done. 41 is a stay integrated with the hitch 9 on the working machine side, 42 is a gear case, 43 is a transmission case, 44 is a rotary claw, 45 is a rolling wheel, 46 is a rotary cover, 47 is a rolling wheel mounting column, 48 is a transmission shaft, and 49 is Fertilizer tank, 50 is fertilizer pump,
51 is a suction pipe, 52 is a discharge pipe, 53 is a fertilizer nozzle, 54
Is a nozzle fixing bracket. In the illustrated example, the fertilizer application nozzle 53 is set behind the rotary pawl 44, but it may be set in front of the rotary pawl 44.

In the above configuration, when disinfecting / controlling the crop b, the planting section M is detached from the main unit 1 side of the riding rice transplanter,
The control machine S is connected. At this time, with the lifting link 7 lowered, the machine 1 is retracted toward the grounded insect control machine S (the injection pipe 26 is raised), and the machine side hitch is attached to the pin seat 8c of the machine side hitch 8. When the upper pin 15 of 9 is placed and the hydraulic lever R is operated in this state to raise the elevating link 7, the working machine side hitch 9 is rotated downward about the upper pin 9 by the weight of the pest control machine S. Since the lower pin 16 of the working machine side hitch 9 is fitted into the pin fitting groove 8d of the working machine side hitch 8, the hook 13 is operated by hand to lock the working machine side hitch 8 and the working machine side hitch 9 and the working machine 1 The side PTO shaft and the power sprayer 17 are connected via the drive shaft 17a. Then, the pest control machine S is fixed to the required spray height adapted to the growth degree of the crop b (hydraulic fixation) by operating the lever, and after the chemical to be sprayed is put in the tank 20, the lever is
If the jet tube 26 is set to the crop posture with the intervention of the crop condition d as shown by the solid line (a) in FIGS. 1 and 2 by the operation of 30, and the PTO clutch is engaged and the machine 1 is driven. The medicine in the tank 20 is sprayed on the crop b from the injection port 33 of the injection pipe 26 through the suction pipe 23, the power sprayer 17, the discharge pipe 24, the agitator 20a and the pipe 25 in this order. At this time, since the drug is sprayed from the side toward the crop b as shown in the figure, the spout 33 is provided on each of the left and right sides of the injection pipe 26, so that the leaves are spread over the entire stem length of the crop. Not only on the front side but also on the back side, there is no corner, and it is evenly adhered, and the control effect is further enhanced. Lever the jet tube 26 when the aircraft travels at the end of the line.
It is carried out by rotating it to the horizontal state shown by the phantom line (b) in FIG.

By the way, in the control work, since the jet pipe 26 intervenes between the crop strips to run the aircraft, the spray pipe 26 is placed in an invisible part behind the driver's seat a, and the jet pipe 26 is installed in the crop b.
It is easy to come into contact with the protruding part of the farm field, obstacles such as stones, and the jet pipe 26 is likely to be caught by the crop b, ridges, etc., especially when the trajectory of the machine is corrected. When added, the elastic material K is bent and escapes in the pressing direction, so that the crop b is prevented from being broken or damaged, or the jet pipe 26 is damaged or deformed. Since the injection pipe 26 can be bent in the entire circumferential direction at the elastic material K portion, it can handle any external force applied to the injection pipe 26, and when the external force disappears, the injection pipe 26 immediately To elastically return to the proper working posture,
The chemical spraying work is always performed well and surely. Since the elastic material K is independently interposed in each of the injection pipes 26, even if the crop b or the like is caught in one of the injection pipes 26, the other injection pipes 26 are not adversely affected.

Further, the pest control device of the present invention is a main body of a paddy field work vehicle such as a passenger rice transplanter having a relatively light body weight as a traveling body, a high body height from a ground contact surface, and a narrow wheel (tire) width.
Since it uses the above, it can significantly increase the operation rate of paddy field work vehicles without adding special improvements to existing traveling vehicles, and even in the case of narrow ridge work that is difficult to enter with tractors etc. It is possible to carry on pest control work, etc. by riding in lightly without ruining. By removing the drug tank 20 from the frame 19, the frame 19 can be used as a carrier so that it can be used as a carrier.
The machine frame 18 also serves as a grounding stand, and the storage space can be reduced by manually raising the jet pipe 26 as shown in the phantom line (c) in FIG. 1 and engaging it with the engaging portion 19a. .

Effects of the Invention As described above, according to the present invention, during the control work, the spray pipe can be intervened between crop rows to effectively spray the chemicals, and the spray pipe can be used even if the spray pipe hits a crop or an obstacle. Since it bends and escapes at the elastic joint while maintaining the function of, it can prevent crops from being broken or the jet pipe to be deformed or damaged, and when external force is not applied, the jet pipe becomes elastic. Since the restoring force of the coil spring immediately restores the proper working posture, the medicine spraying work can always be performed favorably and reliably.

[Brief description of drawings]

Fig. 1 is an overall side view of a riding rice transplanter with a control unit connected to the main unit, Fig. 2 is a rear view of the same, Fig. 3 is a side view of the riding rice transplanter, and Fig. 4 is a hitch on the unit side. FIG. 5 is a perspective view showing the structure of the working machine side hitch, FIG. 5 is a cross-sectional view showing the connecting state of the main machine side hitch and the working machine side hitch, and FIGS. 6 to 8 are examples of elastic materials interposed in the injection pipe. FIG. 9 is a partially cutaway side view, and FIG. 9 and FIG. 10 are a side view and a rear view, respectively, of an example in which a fertilizer application-equipped rotary tiller with a fertilizer application unit is connected to the main unit. 1 ... Traveling aircraft, 7 ... Lifting link, 28 is a jet tube, 33 ...
Spout, K ... Elastic material, S ... Pest control machine.

Claims (1)

[Scope of utility model registration request] 1. A device in which a control machine (S) is detachably connected to a traveling machine body (1) through an elevating link (7), and a spray pipe (26) for spraying chemicals of the control machine (S) has a machine body width. Made of an elastic material that hangs down in a comb shape at appropriate intervals in the direction and connects the upper pipe (26a) and the lower pipe (26b) that are vertically divided at the base end or the middle of each injection pipe (26). Elastic joint made of pipe (2
6c) is interposed, the elastic joint (26c) and the upper pipe (26a),
A pest control device in which a coil spring is installed on the outer periphery of the connection end of the lower pipe (26b).