JP3644032B2 - Agricultural machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a farm working machine that supports a crushed soil body by a machine frame and has a leveling plate provided in a swingable manner behind the crushed soil body.
[0002]
[Prior art]
It is known that the leveling board provided behind the crushed soil is leveled in a free state during work, and when the soil on the convex part of the field is moved to the concave part, the leveling board is fixed and the leveling is fixed. . As this type of proposal, Japanese Utility Model Publication No. 63-12644 by the same applicant is known. In this known technique, an intermediate link and an auxiliary rod are provided on the leveling plate, and a fixed switching device comprising a slidable operating rod and engaging means is provided.
[0003]
[Problems to be solved by the invention]
Such a conventional fixed switching device has a complicated configuration, and has a disadvantage that the number of parts increases and the weight as a whole increases.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problem, in an agricultural machine including a machine frame and a crushed earth body having a cover body at an upper portion, and a ground leveling plate connected to a rear portion of the cover body in a swingable manner, the leveling board is a machine frame. Is supported by a connecting member that swings with a pin on the side plate forming a fulcrum, and a lever is rotatable in a horizontal direction with respect to a vertical supporting boss provided on a side surface of the machine frame, and a lever stopper is connected to the connecting member. An agricultural work machine characterized in that it is configured to be able to be fixed and released by turning a lever between a state in which the upper swing of the leveling plate is fixed by contacting the upper surface of the material and a free state is provided. .
[0005]
[Action]
Since it is configured as described above, when it is brought into the field and the soil of the convex part is moved, the fixing means provided on the machine frame side on the upper surface of the connecting material that supports the leveling plate is attached to the support part. Rotate horizontally to fix the leveling plate upward swing. When releasing the fixation, the operation means is simply turned in the opposite direction to enter the free state.
[0006]
【Example】
The configuration will be described based on the drawings in which the present invention is implemented. FIG. 1 shows a side view of the present invention, FIG. 2 is a perspective view showing fixing means for a leveling plate, and FIG. 3 is a rear view of the main part.
[0007]
Reference numeral 1 denotes a traveling body, which is a riding four-wheel tractor in the present embodiment, which is formed by connecting the front part of an agricultural machine with a lower link 2 and a top link 3. Reference numeral 4 denotes a hydraulic cylinder that raises the pair of left and right lower links 2. Reference numeral 17 denotes a transmission case, which is transmitted to the main mission 18 via the PTO on the side of the traveling body 1 and drives the left and right crushed bodies 5. Reference numeral 21 denotes a machine frame, which is formed from a main mission 18, a side plate 20, and a cover body 6. The cover body 6 covers the crushed soil part, and a leveling plate 8 is connected to the rear part by a swing link 7 so as to be swingable in parallel. Reference numeral 19 denotes a rubber material that forms the lower end of the leveling plate 8 and leveles the field surface with an appropriate elastic force. The gist is the same even if the steel plate material is hinged instead of the rubber material 19.
[0008]
Reference numeral 9 denotes a fixing means. By rotating the lever 13 in the horizontal direction with the support boss 12 provided on the side surface of the side plate 20 as a fulcrum, the stopper 16 is brought into contact with the upper surface of the connecting member 10 that swings around the pin 22 as a fulcrum. The swing of the leveling plate 8 is fixed.
[0009]
Reference numeral 14 denotes a rod that holds the leveling plate 8 by inserting an appropriate elastic body, and the leveling plate 8 has an appropriate elasticity with respect to the mud and follows smoothly.
[0010]
FIG. 2 is a perspective view for explaining the operation of the fixing means 9. The lever 13 rotates in the horizontal direction with respect to the support boss 12 in the vertical direction, and a corner 19 is formed at the lower part of the lever 13. . When the leveling plate 8 is fixed, the stopper 16 is brought into contact with the upper surface of the connecting member 10 and is fixed to the side surface of the corner portion 19 by a regulating member 15 made of a spring material.
[0011]
The rod 14 in FIG. 3 slides against the bracket of the side plate 20 while pressing the coil spring up and down. The rod 14 slides by the swing amount of the leveling plate 8. At this time, the wire 24 is expanded and contracted at the same time, and the expansion / contraction amount operates as a sensor for automatic tilling depth to control the hydraulic cylinder 4. , Keep a constant plowing depth.
[0012]
【The invention's effect】
Since it comprised as mentioned above, the fixed switching of the leveling board with respect to a crushed soil body becomes a simple structure, and it has the advantage that the whole structure can be manufactured lightweight.
[Brief description of the drawings]
FIG. 1 is a side view of the present invention. FIG. 2 is a perspective view of the main part. FIG. 3 is a rear view of the main part.
DESCRIPTION OF SYMBOLS 1 Traveling body 2 Lower link 3 Top link 4 Hydraulic cylinder 5 Crushing body 6 Cover body 7 Swing link 8 Leveling plate 9 Fixing means 10 Connection material 11 Auxiliary link 12 Support boss 13 Lever 14 Rod 15 Restriction material 16 Stopper 17 Transmission case 18 Main mission 19 Rubber material 20 Side plate 21 Machine frame 22 Pin 23 Coil spring 24 Wire

Claims (1)

The machine frame,
It has a crushed clay body with a cover body on the top,
In the agricultural machine with a leveling plate connected to the rear of the cover body in a swingable manner,
The leveling plate is supported by a connecting member that swings with a pin of a side plate forming a machine frame as a fulcrum,
The lever is rotatable in the horizontal direction with respect to the vertical support boss provided on the side surface of the machine frame, and the stopper of the lever contacts the upper surface of the connecting member to fix the upward swing of the leveling plate. State and free state,
Agricultural machine characterized in that it can be fixed and released by turning the lever.

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