JP2000166454A - Sulky and self-propelled spray device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissolve a problem that an operator sitting in the middle part of the longitudinal direction is difficult to confirm spraying during running operations when a spray device is on the rear part of a machine body. SOLUTION: This self-propelled sulky spray device is constituted by installing a connecting hitch frame 18 through a lifting mechanism 14 in the front side of a self-propelled sulky traveling vehicle mounting a tank 22 for receiving a liquid for watering or disinfection, detachably installing a spray device 26 having a fixed center spray frame 27 having width equal to or slightly wider than the lateral whole width of the traveling vehicle 1 and a side spray frame 39 connected for its free end to face back upward of the traveling vehicle 1 by rotating around inclined shaft center on the both lateral sides of the center spray frame 27 to the connecting hitch frame 18, installing spray tubes 35, 48 provided with spray nozzles at a predetermined interval in a form along lateral directions to the both spray frames and feeding a liquid in a tank under pressure into the spray tubes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled riding sprayer for performing agricultural irrigation or disinfection by mounting a spraying device on a riding self-propelled traveling vehicle.

[0002]

2. Description of the Related Art Conventionally, an agricultural tractor, which is an example of a riding type vehicle, has a tank for containing a disinfecting solution mounted on a rear side thereof.
At the rear part of this rear side tank, a riding type spraying device configured so that a boom having a spray tube for disinfection rotates up and down on the left and right sides, and a boom split into two parts at the front of the tractor body are attached and sprayed. There was something to work on.

[0003]

SUMMARY OF THE INVENTION In the prior art,
Because the spray device is configured at the rear end of the vehicle body,
The problem that the disinfection spraying state is difficult for the pilot to see,
In the case of a boom divided into two parts at the front of the fuselage, if the projecting distal end of the boom is moved closer to the fuselage, the base end of the boom projects forward and the front-rear length is increased, making driving operation difficult.

[0004]

According to the present invention, there is provided a tank for storing a liquid for irrigation or disinfection.
On the front side of the self-propelled riding type traveling vehicle 1 mounted on the rear part, a connecting hitch frame 18 which moves up and down via an elevating mechanism 14 is disposed. A fixed center sprayer frame 27 which is equal to or slightly wider than the entire side width, and the left and right sides of the center sprayer frame 27 are rotated around the tilt axis so that the free end is located obliquely above and behind the traveling vehicle 1. Side spray frame 3 connected to face
And a spray device 26 having a spray nozzle 34 attached to both sprayer frames at predetermined intervals.
5, 48 were mounted in a horizontal direction, and the liquid in the tank was pumped into the spray pipe to form a riding self-propelled spray apparatus.

The center sprayer frame 27 attached to the connecting hitch frame 18 has a height in a side view from a low position in front of the front wheel 2 to a position substantially above the outer diameter of the front wheel 2. The riding self-propelled spraying device according to claim 1, which can be adjusted up and down over the interval.

According to a third aspect of the present invention, a center sprayer frame 27 is provided.
As the free end side of the side spray frame 39 folded so that the free end side is directed obliquely upward and rearward of the traveling vehicle 1, the free end side of the side hitch frame 18 rises The self-propelled riding spray device according to claim 1 or 2, wherein the self-propelled spraying device is configured to approach the upper edge of the tank 22.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a traveling vehicle, which is a four-wheel drive type tractor which is an example of a riding type vehicle. As is clear from FIGS. 1 and 2, an engine covered by a hood 5 is mounted on the upper front side of a vehicle body 4 having front wheels 2, 2 and rear wheels 3, 3, and a control seat 6 is provided at the rear. A steering post is provided upright at the center of the rear end of the hood at the left and right sides. Although not shown, the front wheels 2, 2 and the rear wheels 3, 3 of the tractor 1 can be switched between front wheel steering, rear wheel steering and front and rear wheel steering by push buttons 8a, 8b, 8c which can be selectively switched from the steering seat side. What you are doing. 9 is a main transmission lever, 10 is an auxiliary transmission lever, and 11 is a throttle lever. 12 is the cockpit floor,
It is stretched on the upper surface side of the vehicle body.

A front hitch 13 is provided on the front side of the vehicle body 4. Reference numeral 14 denotes an elevating mechanism, which pivotally connects the base sides of the upper link 16 and the lower link 17 to a fixed base frame 15 which can be appropriately attached to and detached from the front hitch 13 so as to be rotatable around a horizontal axis. , 17 are connected to each other by a connecting hitch frame 18 so that the connecting hitch frame 18 can be linked up and down. And this lifting mechanism 1
In the link configuration of No. 4, the link fulcrum interval L on the distal end side than the link fulcrum interval M on the base side is set such that the inclination of the connecting hitch frame 18 is directed rearward or forward at the middle of the vertical movement. Wide. Reference numeral 19 denotes an electric cylinder, which has its base side pivotally connected to the connecting hitch frame 18 and its piston side pivotally connected to the lower link 17 so that the connecting hitch frame 18 is moved up and down by the ingress and egress operations of the piston 19a. .

Reference numeral 20 denotes a tank, which is a resin tank for storing irrigation water and a disinfecting solution, and is formed in a U-shape in plan view so as to surround the left and right sides and the rear side of the cockpit 6. It can be easily detached while sliding backward. Further, a spray adjusting operation section 21 such as a switching valve, a pressure adjusting valve, or a spray position switching valve of the spray device is provided integrally with the tank 20 above the right side portion of the tank 20. Reference numeral 22 denotes a liquid supply lid, and 23 denotes a set screw of the tank 20. Reference numeral 24 denotes a dynamic injection pump, which is a rear hitch 25 of the tractor,
, And is driven from a rear output shaft (not shown).

Reference numeral 26 denotes a spray device, which is a center sprayer frame 27.
And the side sprayer frame 39 can be divided and configured as follows. The center sprayer frame 27 includes a hook-like notch engaging portion 30 that can be selectively scratched on either side of the engaging shafts 28 and 29 fixed to the front end portion of the connecting hitch frame 18 in two vertical stages, In the locked state, the connecting hitch frame 18 and the connecting hitch frame 18 are integrally provided with a detachable fitting 33 having a fixing hole 32 through which a pin 31 can be inserted and removed. 34,3
4,. . . Are fixed at predetermined left and right intervals so that the nozzle 34 faces downward. Reference numeral 36 denotes a handle for rotating the center sprayer frame 27 at the time of detachment. Reference numeral 37 denotes a column for supporting a side sprayer frame (to be described later) at the time of folding, and a center sprayer frame 2.
The base is fixed to the left and right end sides of 7 so as to face rearward and upward during setting. A transport handle 38 for lifting and transporting the entire sprayer frame is provided at the upper end of the column 37. In addition, this transport handle 38
The direction of the grip portion is configured in the direction of gravity when the entire sprayer frame (including the entire spray frame portion on the center and side) is hung on the left and right columns 37, so that it is possible to carry while maintaining balance. I have.

The side sprayer frame 39 has a pin 4 attached to a bracket 40 fixed to the left and right end sides of the center sprayer frame 27.
The movable member 42 is rotatable upward and rearward at 1 and is fixed to the movable member 42 by means of a pin 43 to a metal fitting 44 which can be rotated substantially horizontally only on the rear side.

Reference numeral 45 denotes an electric cylinder for rotating the side sprayer frame 39 around the pin 41. The cylinder 45 is connected to the center sprayer frame 27 and its piston 45a is connected to the movable member 42. Connecting and piston 45
The side sprayer frame 39 is developed in the same direction as the direction in which the side sprayer frame 39 extends due to the projection of a, and is extended on the extension thereof, and is refracted upward and rearward by the retraction of the piston 45a. . Reference numeral 46 denotes a spring for holding the side sprayer frame 39 in the lifting direction, interposed between the column 37 and the movable member 42, and for maintaining the side sprayer frame 39 by the electric cylinder 45 and raising the swinging force. It works to help.

The spring 47 is provided on the side sprayer frame 3.
In the state in which the side sprayer frame 39 extends in the left and right lateral direction interposed between the metal frame 9 and the metal fitting 44, when foreign matter comes into contact with the machine frame 39 from the front side, the machine frame 39 rotates around the pin 43. To prevent the machine frame 39 from being damaged, and to return to the original state in which it is aligned with the center spray machine frame 27 when the contact of foreign matter is removed.

Numeral 48 denotes a side spray pipe which is attached along the lower portion of the side spray machine frame 39 and extends outwardly from the machine frame 39 so that the spray nozzle 3
4, 34,. . . Are mounted at predetermined left and right intervals.
Reference numeral 49 denotes a flexible rubber connection hose which is connected to the center spray pipe 35 and the side spray pipe 48 from the dynamic injection pump 24 via the respective valves of the spray control operation section 21 so as to send pressure liquid. It is a hose that does.

Reference numeral 50 denotes a lock device for maintaining the side sprayer frame 39 in a swung state.
7 for holding the side sprayer frame 39 attached to 7
1 and a lock fitting 52 for closing the entrance so that the side sprayer frame 39 is not accidentally dropped from the entrance when the side sprayer frame 39 is fitted into the holding fitting 51. The lock fitting 52 is connected to the side spray pipe 48. Is operably provided by a rod 54 provided movably by a lever 53 in the direction of the tube 48. The lever 53 is, of course, provided integrally with the side sprayer frame 39 and the side spray pipe 48.
When the steering wheel 8 is swung upward and rearward, it is configured to be in a position where it can be easily operated from the cockpit 6 side. Reference numeral 55 denotes a spring that holds a locked state, and 56 denotes a lever guide that inserts the rod 54 and locks the lever 53 so that the lock fitting 52 holds the unlocked state. Reference numeral 57 in the drawing denotes a moving rolling wheel fixed to the center sprayer frame 27 via a bracket 58.

Next, the operation of the above example will be described in detail. The traveling vehicle 1 becomes a simple vehicle by removing the rear tank 20, the dynamic injection pump 24, the spraying device 26, and the elevating mechanism 14, and is used for other work. Can be a vehicle. Further, in the watering operation or the disinfecting operation, these operations can be performed in the illustrated state.

That is, while the vehicle is operated while straddling the ridges on which the crops in the field are vegetated, the operator performs an appropriate operation of the spray adjusting operation section to supply the liquid to the spray device 26 side. The liquid sprayed under pressure from the spray nozzles 34 of the center spray pipe 35 and the side spray pipes 48 is sprayed onto the plants (vegetables and flowers) growing on the ridge on which the vehicle is straddling and the ridges on the left and right sides in a spray state. Or perform disinfection.

When the vehicle reaches the end of the field, the vehicle is turned while continuing or interrupting the watering and disinfecting operations, and the vehicle is moved to the ridge side of the unworked portion.
The required side of the side sprayer frame 39 on both the left and right sides is swung upward and rearward to narrow the left and right width of the sprayer 26 so that it can be easily turned. In this operation, the left and right electric cylinders 45, 45 are separately operated by switches (b) and (c) provided near the cockpit 9 to operate the piston 4
When one or both of 5a and 45a are retracted, the left and right side sprayer frames 39 are rotated around the pins 41 and swung up as shown in FIGS. This state is the same during operation on the road, but it is necessary to operate the lock device 50 to prevent the side sprayer frame 39 from unexpectedly turning downward during operation on the road. Further, since the side sprayer frame 39 is always held in the lifting direction by the spring 46, the lifting force is weak and a large electric cylinder is not required.

If the side sprayer frame 39 collides with foreign matters such as ridges and piles during the operation, the frame 39 is rotated rearward against the spring 47 around the pin 43, and the frame 39 is rotated. And the spray tube 48 can be held without being damaged, and return to the original state when foreign matter passes by. Further, in order to change the spray height in accordance with the difference in the ridge height or the growing state of the crop, the electric cylinder 19 of the lifting mechanism 14 may be operated by a switch (a) to change the lifting height. If the adjustment cannot be made within the adjustment range of the elevating mechanism 14, the entire spraying device 26 can be changed by vertically moving the mounting position of the center sprayer frame 27 from the engagement shaft 28 to the 29 side.

When the spraying device 26 is detached from the lifting mechanism 14 and is stored and stored in an appropriate place, it is possible to carry out the detaching operation alone. That is, in a state where the left and right side sprayer frames 39 are swung upward to be folded and locked by the lock device 50, the handle 36 is grasped with one hand, and the pin 31 is removed and lifted to remove the fitting 33 from the engagement shaft 28. The notch locking part 30 is removed, the lower part is lowered to the ground, and then the left and right transport handles 38 are grasped and transported while being lifted. At this time, the center of gravity of the spray device 26 is
When it is suspended, it acts on the vertical side of the handle 38 to select a position and a direction in which there is no rotation in the front-rear direction, so that it can be easily lifted and transported.

The elevating mechanism 14 changes the angle of the spray device 26 with respect to the traveling vehicle 1 as shown in FIG. 1 by raising and lowering it. Side sprayer frame 3 including 48
The angle of 9 becomes gentle, and when it descends, it becomes a steep angle, and when it rises, the height of the upper end of the side spray pipe 48 is lowered so as not to obstruct the road running.

[0022]

According to the present invention, a tank 22 containing a liquid for irrigation or disinfection is mounted at the rear part and moves up and down via a lifting mechanism 14 to the front side of a self-propelled riding type traveling vehicle 1. An elevator frame is provided, and a center spray pipe 35 at the center in the left-right direction, which is equal to or slightly wider than the entire width on the left and right sides of the traveling vehicle 1, is attached to the elevator frame.
A transmission cylinder 45 rotates side spray pipes 48 around the axis on both left and right sides of the center spray pipe 35. The projecting end of the side spray pipe 48 is connected to the left and right sides of the traveling vehicle 1. The wide spraying workable state, which extends substantially linearly to the left and right ends of the center spray pipe 35 in the width direction, and the protruding ends of one or both side spray pipes 48 are brought closer to the vehicle body 4 side of the traveling vehicle 1. The basic configuration is a riding self-propelled spraying device that is provided so as to be switchable between a narrow spraying workable state and a narrow storage state, and a protruding end of the side spray pipe 48 when the narrow spraying workable state is set. Is added to the vehicle body 4 side while moving upward about the center axis of both ends of the center spray pipe 35, or when the narrow spray state is set, the projecting end of the side spray pipe 48 I'm getting closer to the tank 22 on the rear side A With riding self-propelled spray device obtained by adding a structure which rotates around the axis of the center spray tube 35 ends in an obliquely rearward and upward position exhibits the following technical unique effect.

That is, a center spray pipe 35 is attached to the foremost part of the traveling vehicle 1 in the left-right direction, and a base of a side spray pipe 48 is attached to the axial center of both ends of the center spray pipe 35. Since the projecting distal end of the 48 rotates about the shaft center so as to approach the fuselage side, the base end of the side spray pipe 48 does not project forward or downward from both ends of the center, so that the steering of the traveling vehicle can be performed. It can be done easily.

When the protruding end of the side spray pipe 48 is turned up and down around the axis of both ends of the center spray pipe 35, the side spray is performed while the traveling vehicle 1 is moving in a contour direction on an inclined ground in a front view. By vertically adjusting the projecting tip of the tube 48, the distance between the tip and the ground can be visually adjusted, and the traveling performance does not decrease.

When the storage section is further narrowed, the side spray pipe 48 is folded obliquely rearward so as to approach the rear tank 22 on the side of the vehicle body 4, so that the side spray pipe is inclined. The maneuverability is improved by shortening the length around minutes.

[Brief description of the drawings]

FIG. 1 is an overall side view, partially in section, of an embodiment of the present invention.

FIG. 2 is an overall plan view of the embodiment of the present invention.

FIG. 3 is an enlarged side view of a main part, which is an embodiment of the present invention.

FIG. 4 is an enlarged front view of a main part, which is an embodiment of the present invention.

FIG. 5 is a perspective view of an essential part of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running vehicle 2 Front wheel 14 Elevating mechanism 18 Connecting hitch frame 22 Tank 26 Spraying device 27 Center sprayer frame 34 Spray nozzle 35 Spray tube 39 Side spray frame 48 Spray tube

Claims (3)

[Claims] 1. A connecting hitch frame 18 which moves up and down via an elevating mechanism 14 is arranged at the front side of a self-propelled riding type vehicle 1 having a tank 22 containing a liquid for irrigation or disinfecting mounted at the rear. The connecting hitch frame 18 is provided with a fixed center sprayer frame 27 which is equal to or slightly wider than the entire width of the traveling vehicle 1 on the left and right sides.
A spraying device 26 having a side spraying frame 39 which is rotatable on the left and right sides around the tilt axis and whose free end is connected to the rear obliquely upward of the traveling vehicle 1 is provided detachably,
Spraying tubes 35 and 48 having spraying nozzles 34 attached at predetermined intervals to both sprayer frames are mounted in a horizontal direction, and the liquid in the tank is pumped into the spraying tubes for riding self-propelled spraying. apparatus. 2. The center sprayer frame 27 attached to the connecting hitch frame 18 has a height position in a side view from a low position in front of the front wheel 2 to a position substantially above the outer diameter of the front wheel 2. The self-propelled riding spray device according to claim 1, wherein the lift is adjustable. 3. The side spray frame 39 which is rotated around the left and right inclined axes of the center sprayer frame 27 and folded so that the free end is directed obliquely upward and rearward of the traveling vehicle 1.
3. The self-propelled spraying device according to claim 1, wherein the free end side of the vehicle approaches the upper edge of the tank 22 as the connecting hitch frame 18 moves upward.