JPS646683Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rotary mower reaping device.

Conventionally, in a rotary mower, a plurality of cutting blades protruding outward are provided on the peripheral edge of a flat rotor blade that rotates while facing the ground due to driving force from an engine. In addition to cutting the root part of the grass, etc., we also cut the splash plates fixed approximately radially to the upper surface of the rotor, and the conveyor rods located above the rotor and rotating in a plane approximately parallel to the rotor. The structure is such that the grass, etc. is placed on the side in the direction of movement of the aircraft by interfering with the grass, etc. Once the root part cut by the cutting blade rests on the upper surface of the rotor blade, it is interfered with by the splash plate and sent to the side, but the cutting blade protrudes outward from the periphery of the rotor blade. For this reason, there are grasses and the like that are cut by the cutting blade but the cut root portion does not get on the rotary blade. Such grass, etc., is cut again by another cutting blade that rotates next before it is interfered with by the splash plate, resulting in a short cut grass portion. This waste grass is left on the ground surface when harvesting cut grass, etc., which has the drawback of reducing the yield of grass, etc. accordingly.

This invention was developed in view of these points, and the purpose is to provide a rotary mower cutting device that can prevent the formation of waste grass due to double mowing and prevent a decrease in the yield of grass, etc. It is something to do.

This idea is to provide a disc-shaped rotor blade that rotates around the axis of a rotating shaft that faces the ground and has a vertical axis at the front of the body of a mobile agricultural machine. Grass, etc. is cut with freely provided cutting blades, and furthermore, the cutting blades are placed on the peripheral edge of the rotary blade at the rear in the direction of rotation of the cutting blades, and have a protruding size approximately equal to the protruding size of the cutting blades. By providing a rotatable removal plate that protrudes from the blade, the removal plate interferes with the root of the grass etc. cut by the cutting blade, causing the cut grass etc. to fall to the side in the direction of movement of the machine and to prevent other The structure is such that it is possible to prevent the grass from being cut again by the cutting blade and forming debris.

An embodiment of this invention will be described based on the drawings. Engine 2 which is the driving part of the body 1 of the mobile agricultural machine
A plurality of pulleys 4 and 5 are fixed to the output shaft 3 of. A pulley 9 is fixed to an input shaft 8 of a gear case 7 to which a running wheel 6 is connected, and a belt 10 is stretched between the pulley 9 and the pulley 4. A gear case 12 is provided at the front of the machine body 1, and holds a mower shaft 11, which is a rotating shaft having an axis in the vertical direction, rotatably around the axis.
A belt 15 is stretched between the pulley 5 and a pulley 14 fixed to an input shaft 13 connected to the mower shaft 11 of the gear case 12. These pulleys 4, 5, 9, 14 and belts 10, 15 are covered by a belt cover 16.

A disk-shaped rotary blade 17 facing substantially parallel to the ground is fixed to the lower part of the mower shaft 11, and a bowl-shaped cover is located below the rotor blade 17 and is connected via a bearing (not shown). 18 is attached. A plurality of cutting blades 20 are rotatably attached to the peripheral edge of the rotary blade 17 by cutting blade mounting bolts 19 having vertical axes, and are rotatable about the cutting blade mounting bolts 19. A plurality of splash plates 21 having a predetermined height are fixed to the upper surface of the rotary blade 17 in a substantially radial manner. The outer end of the splash plate 21 reaches the peripheral edge of the rotary blade 17 to which the cutting blade 20 is attached,
A removal plate 24 is attached to the outer end of the pop-up plate 21 via a mounting member 22 and a fulcrum pin 23 having a vertical axis, so as to be rotatable about the axis of the fulcrum pin 23. The exclusion plate 24 is located close to the rear of the cutting blade 20 in the rotational direction (direction of arrow A), and has a dimension that is approximately equal to the protruding dimension of the cutting blade 20 outward from the peripheral edge of the rotary blade 17. It is determined to protrude with a protruding dimension.

In such a configuration, the mower shaft 11 rotates around the axis due to the driving force from the engine 2, and the rotor blades 17 also rotate integrally. The cutting blade 20 and the removal plate 24 are maintained in a state of protruding outward from the peripheral edge of the rotary blade 17 by centrifugal force.
Due to the rotation of the rotary blades 17, the grass etc. located in front of the moving direction of the machine body 1 is cut from its root portion by the cutting blade 20. The cut portion of the cut grass, etc. that has landed on the upper surface of the rotor blade 17 is interfered with by the splash plate 21, and the cut portion of the grass etc.
The trees are cut down in rows to the right in the direction of travel. mower blade 2
The removal plate 24 located immediately after the cutting blade 20 interferes with the grass, etc. that was cut by the blade 0 and the cut portion did not get on the upper surface of the rotor blade 17, and these grass, etc. are also removed in the direction of movement of the aircraft 1. They are cut down in rows on the right side. Therefore, all of the grass etc. cut by the cutting blade 20 is successively laid down to the side of the machine body 1 by the splash plate 21 and the removal plate 24.
Once cut grass, etc. is not cut again by another cutting blade 20 rotating from behind, short cut grass parts are not formed, and a decrease in the yield of grass, etc. can be prevented. . In addition, the cutting blade 20, the exclusion plate 24
Both are rotatably attached, so
When it hits an obstacle such as a stone, it rotates and escapes backwards, preventing damage.

As mentioned above, this device is located at the rear of the cutting blade in the direction of rotation and has a protruding dimension that is approximately equal to the outward protruding dimension of the cutting blade. All the cut grass etc. can be thrown down in a row to the side in the direction of movement of the aircraft while riding on the upper surface of the rotor or being interfered with by the removal plate. It is possible to prevent grass, etc. that has been cut by the blade from being cut again by other cutting blades, and to prevent the formation of short grass sections due to repeated cutting, reducing the yield of grass, etc. It can also prevent
Since the cutting blade and the removal plate are rotatable, they have the advantage of being able to prevent damage even if a stone or the like interferes with them.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a side view of the whole, Figure 2 is a partially cutaway plan view, Figure 3 is a partially enlarged plan view, and Figure 4 is a partially enlarged cross-sectional view. FIG. 1...Aircraft, 2...Engine (drive unit), 11
...Mower shaft (rotating shaft), 17...Rotor blade, 20...
...Kariblade, 24...Exclusion board.

Claims (1)

[Scope of utility model registration request] A rotating shaft having a vertical axis and being connected to a drive unit and rotating around the axis is provided in the front part of the body of the mobile agricultural machine, and a rotating shaft is provided at a lower part of the rotating shaft facing the ground and integral with the rotating shaft. A plurality of splash plates having a predetermined height dimension are fixed approximately radially to the upper surface of the rotor blades, and a plurality of spring plates located at the tips of these spring plates are connected to each other. A plurality of cutting blades protruding outward are provided on the peripheral edge of the rotary blade, and the cutting blades are located at the rear in the rotational direction of the cutting blades and protrude outward with a protrusion dimension that is substantially equal to the protrusion dimension of the cutting blades. A reaping device for a rotary mower, characterized in that a removal plate is rotatably attached to the peripheral edge of the rotary blade.