JP2917562B2 - Device for facilitating the attachment and detachment of solution tanks on mobile agricultural machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for easily attaching and detaching a solution tank of a mobile agricultural machine. The present invention provides a solution tank that is attached to the rear end of a mobile agricultural machine by overhanging, for example, a tank that stores a chemical solution for control. It is designed to be easily detachable.

[0002]

2. Description of the Related Art In a conventional mobile agricultural machine, when a solution tank for accommodating a chemical solution is mounted on a mounting table at a high position, there are workers on the left and right sides of the tank, the tank is lifted to a position higher than the mounting table, and then moved laterally. When putting on and removing, the opposite work was done.

[0003]

In such a conventional mounting method, if a plurality of workers are required, and if there is a large difference in physical strength, the balance between the left and right is easily lost, and the members are damaged due to the tank falling. In the worst case, it was easy for the worker to be injured.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the conventional apparatus, and has the following technical means. That is, the lower receiving stand 2 and the swinging lock 3 are attached to the rear part of the lifting link 1 which is disposed at the rear of the body of the mobile agricultural machine 6 so as to be vertically movable, and the lowering of the lifting link 1 with respect to the body height is performed. When the regulating tool 4 for regulating is provided in the main frame 5 and the solution can be stored therein, and the solution tank 7 provided with the engaging tool 8 in the lower part of its abdomen is placed on the lower receiving table 2, This engaging tool 8 is attached to the swing
And a device for facilitating attachment / detachment of the solution tank of the mobile agricultural machine.

[0005]

According to the present invention, with the above-mentioned structure, the swinging stopper is provided by attaching the engaging member 8 provided at the lower part of the belly of the tank to the rear portion of the lifting link 1 while pulling the solution tank 7 backward at the time of removal. When the hook is completed and the rear end of the solution tank 7 is moved down after the hooking is completed, the engaging member 8 and the engaging member 3 constitute a rotating shaft portion. As the weight approaches the ground, most of the weight of the solution tank 7 is received by the rotating shaft, so that the removal can be performed with a light force.

At the time of mounting, the solution tank 7 is set upright on the ground with the rear side of the solution tank 7 as the bottom position, and the engaging member 8 is positioned at the middle part in the vertical direction. After the swinging lock 3 at the rear of the elevating link 1 attached to the lower link is restricted to the vicinity of the engaging tool 8, the solution tank 7 is slightly lifted to move the engaging tool 8 to the swing locking tool. When the hook is completed and the rear end of the solution tank 7 is moved up after the hooking is completed, the engaging member 8 and the engaging member 3 constitute a rotating shaft. It can be lifted lightly without fear of falling.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements and the like of the components described in this embodiment are as follows:
Unless there is a particular description, the scope of the present invention is not intended to limit the scope of the present invention only to them, but is merely an illustrative example.

In the illustrated example, the configuration of the present invention is incorporated into a work for attaching and detaching a solution tank 7 for control, which is attached to the rear part of the mobile agricultural machine 6. The mobile agricultural machine 6 in the illustrated example has two main frames 5, 5 on the left and right from the front end to the rear end in the front-rear direction of the body, and the front left and right front wheels 9, 9 on the front of the main frame 5 and the rear. Rear wheels 10, 10 are provided.

The front and rear wheels 9 and 1 of the main frame 5 are viewed from the side.
There is a concave portion 11 which is downwardly lowered in the interval 0. A central floor surface made of a flat plate on which the driver places his / her foot is provided between the concave portions 11 and 11 of the left and right main frames 5 and 5 on both sides thereof. At the same level, the steps 12, 12 are mounted on a support frame (not shown) projecting from the machine frame. The rear part of the step 12 constitutes a fender 13 extending to a position above the rear wheel 10, and the fender 13 serves as a carrier that can withstand a load.

The left and right rear wheels 10, 10 are connected left and right by an axle case 14 which detours upward in a gate shape, and the axle case 14 is attached to the lower surfaces of the left and right main frames 5, 5. At the front part of the axle case 14, left and right support bosses for attaching the support shafts 15 and 15 are integrally provided, and the elevating link 1 is mounted using the support shaft 15 as a pivot.

The elevating link 1 comprises two links on the left and right and a hitch 16 integrally connecting the left and right links at the rear ends thereof.
A link that protrudes rearward from the fuselage by bypassing the upper part of the axle case 14 from the front support shaft 15 of the main frame. It is configured to be able to move up and down via hydraulic cylinders (not shown) attached to the rear portions of 5, 5.

However, when mounting the solution tank 7 according to the present invention, since a large weight of liquid acts on the lifting link 1, the lowering is restricted by a restricting device 4 described below so as not to move below a certain position. . As shown in the back sectional view of FIG. 4, the restricting tool 4 integrally mounts holding pipes 18 via mounting plates 17, 17 from left and right lifting links 1, 1, and both ends of the holding pipes 18. Attachment shafts 19, 19 are attached to extend and contract freely. The check shaft 19 is expanded and contracted by inserting and removing the pine needles 20 and the like, and the back cross-sectional view of the illustrated example shows a state where the left side is extended one step and a right side where the main frame 5 is contracted so as not to contact the main frame 5.

After the elevating link 1 is rotated upward from the main frame 5, the tether shaft 19 is extended by one step and lowered, and the tether shaft 1 is moved downward.
The projecting end of 9 contacts the upper edge of the receiving metal 21 welded to the main frame 5, and its lowering is restricted, so that the position of the lifting link 1 with respect to the main frame 5 is determined. The lower receiving stand 2 and the swing lock 3 are attached to the hitch 16 of the lifting link 1. A pump (not shown) for pressurizing a chemical solution for controlling work is provided in the lower receiving table 2.
And the upper surface thereof serves as a carrier for supporting the lower rear part of the solution tank 7.

At the front of the lower receiving table 2, a bridge plate 22 which can rotate back and forth is attached via a hinge 23. When the bridge plate 22 rotates forward, the bridge plate 22 reaches the upper edge of the fender 13 and is continuously connected to the loading floor. Surface. As shown in FIGS. 2 and 5, the swing locking member 3 is a U-shaped bar in a plan view, and protrudes rearward from a rear support frame 24 at the rear of the lower support 2.

On the other hand, an engaging member 8 of a plate material having a hook-shaped tip is attached to the lower part of the abdomen of the solution tank 7, and when the solution tank 7 is attached to and detached from the lower receiving table 2 of the mobile agricultural machine 6,
The solution tank 7 is turned up and down by scratching both the swing locking member 3 and the engaging member 8. That is, at the time of mounting, as shown in FIG. 2, the solution tank 7 is set upright on the ground with the rear side of the solution tank 7 as the bottom position, and the engaging tool 8 is positioned at the middle part in the up-down direction, and is protruded from the rear side. Multiple wheels 25, 25. . .
As a result, the engaging tool 8 of the solution tank 7 is moved to the vicinity of the swing locking tool 3 attached to the rear part of the lifting link 1. After moving,
When the solution tank 7 is slightly lifted and the engaging tool 8 is hooked on the swinging locking tool 3 and the rear end of the solution tank 7 is moved upward after the hooking is completed, the engaging tool 8 and the locking tool 3 rotate. Since the shaft portion is formed, the solution tank 7 can be lightly moved to the position of the solution tank 7 indicated by a solid line in FIG.

Reference numeral 26 denotes a lifting handle, which protrudes rearward from an upper portion on the rear side of the solution tank 7.
Reference numerals 27, 27 denote wheels, which are respectively mounted on the front left and right of the lower part of the abdomen of the solution tank 7, and
3 is used to move the solution tank 7 above. Rear wheel 1
Above the main frame 5 on 0, 10 there is a driver's seat 2
A support column 27 for mounting 8 is provided.

As shown in FIG.
The stays 28, 28 that rotate up and down are mounted on a shaft 29,
With the solution tank 7 removed, the restraining shaft 19 described with reference to FIG. 4 is inserted and mounted in the mounting hole 30 provided at the tip of the stay 28, whereby the lifting link 1 can be fixed at a position near the highest position. By this fixing, no excessive load is applied to the hydraulic cylinder when traveling on uneven roads due to the weight of the working machine, so that the hydraulic device can be prevented from being damaged.

When the stay 28 is not used, the stay 28 moves upward as indicated by the imaginary line and moves substantially forward of the column 27, so that the stay 28 does not become an obstacle even when the solution tank 7 or the like is attached. A reinforcing horizontal column 31 is integrally provided at a vertical intermediate portion of the column 27, and a bulging portion 33 provided below the intermediate front wall 32 of the solution tank 7 shown in FIG. Left and right support 2
The solution tank 7 is pressed from the back between 7, 27 to fix the solution tank 7 to the main frame 5 portion.

Reference numeral 34 denotes a tightening tool, which has a handle for tightening on the head of the bolt, but may have a hexagonal head. Reference numeral 35 denotes a holding plate,
A frame projecting downward from the upper surface of the holding plate 35 has a U-shape. The screw portion of the fastener 34 is tightened into a nut welded to the front wall of the holding plate 35.

Reference numeral 36 denotes a fastener, and the holding plate 3
5 is turned upside down around the pin 37 at the lower portion by removing the fastener 34. Reference numeral 38 denotes a rear receiver, which is attached to the lower right and left of the lower portion of the solution tank 7, and which is connected to the rear receiver 3.
8 is pressed on the upper part of the fastener 36. The lower wheel 25 among the wheels 25 in FIG. 2 shares the rear receiving metal 38 as a mounting portion.

The solution tank 7 is made of a light resin material such as FRP or ABS resin, and has left and right extending portions 39, extending on both sides thereof near the front edge of the seat 28 with the front seat 28 as a recess. 40. Other materials may be used as long as they are strong and resistant to chemicals. The left extending portion 39 is provided with a concave groove 41 from the upper surface to the vicinity of the lower end of the front surface, and a transparent gauge pipe 42 is provided so as not to protrude from the inside of the concave groove 41.

If the transparent resin body is integrally attached to a part of the wall, any gauge may be used, but if the groove is formed, it becomes stronger against contact with other objects. The upper surface of the right extension portion 40 is a substantially horizontal mounting seat 43, and the mounting seat 43
Pressure regulating valve 44 composed of an on-off cock, a pressure tank, a hose, etc.
Is mounted.

A lift lever 46 is provided between the seat 28 and the right extension 40 to switch a high-pressure oil passage to a hydraulic cylinder interlocked with the lifting link 1. When a certain solution tank 7 is used, the lifting link 1 restricts downward weight movement as described above, but does not restrict upward movement. this is,
If the main frame 5 has rigidity, it locks up and down. However, in this lightweight and inexpensive mobile agricultural machine 6, there is a possibility that the main frame 5 may be deformed when the hydraulic cylinder is extended, so that the upward locking is not restricted. .

However, when the lift lever 46 is operated in the ascending direction, although it is not necessary due to an erroneous operation of the operator, the solution tank 7 moves up and comes into contact with the driver's back, or the tank mounting / fixing part is not fixed. May be damaged. Reference numeral 47 denotes a lever restricting tool which is disposed on the lift operation side of the lift lever 46 and restricts the movement of the lift lever 46. The lever restricting tool projects downward from the pedestal 45 and is separately provided in the illustrated example. However, it may be integrated with the base 45.

FIG. 11 is an overall side view of the mobile agricultural machine 6 to which the control device 48 is attached. The control device 48, which is attached to the front of the fuselage so as to be adjustable up and down, comprises a central boom frame 49 and left and right side boom frames 50, 50. During the operation, the side boom frame 50 moves in the width direction in front of the fuselage. The left and right side boom frames 50, 50 are folded laterally during non-operation, so that the entire body width is reduced to facilitate traveling.

The boom frames 49, 50 have booms 51, 51. . . . . . Are installed and spray on the ground crop.

[Brief description of the drawings]

 The figure shows an embodiment of the present invention.

FIG. 1 is a side view of a main part.

FIG. 2 is a side view of a main part when a member is attached and detached.

FIG. 3 is a side view showing a lifting link and a restricting tool.

FIG. 4 is a back sectional view of FIG. 3;

FIG. 5 is a plan view of FIG. 2;

FIG. 6 is a side view of a main part partially sectioned.

FIG. 7 is a plan view of a main part.

FIG. 8 is a partial sectional front view of a main part.

FIG. 9 is a partially enlarged side view of another main part.

FIG. 10 is a plan view of FIG. 9;

FIG. 11 is an overall side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevating link 2 Lower support 3 Swing lock 4 Regulator 5 Main frame 6 Moving agricultural machine 7 Solution tank 8 Engagement tool

Claims (1)

(57) [Claims] 1. A lower cradle 2 and a swing lock 3 are attached to a rear portion of a lifting link 1 movably disposed at a rear portion of a body of a mobile agricultural machine 6 so as to be movable up and down. A regulating tool 4 for regulating the downward movement is provided on the main frame 5 and
When the solution tank 7, which is capable of storing a solution therein and is provided with an engagement tool 8 at the lower part of its belly, is placed on the lower receiving table 2, the engagement tool 8 comes into contact with the swing locking tool 3. A device for facilitating the attachment and detachment of a solution tank of a mobile agricultural machine, characterized in that: