JPH04110432U - grass mower - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent interference between the reaping bodies and to prevent uncut material between the reaping bodies in the relationship between the horizontally rotating reaping body that reaps the top surface of a ridge and the inclined rotary reaping body that reaps the slope surface. . [Structure] While the horizontal rotary cutting blade 14 for cutting the ridge top surface is fixed, the inclined rotating cutting blade 24 for cutting the slope surface is configured to be adjustable in its inclination angle and horizontal position.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a grass mower that can simultaneously mow ridges and slopes.

0002

[Prior art and problems to be solved by the invention]

In general, some of these types of mowers cut grass on the top of ridges and on slopes at the same time. A horizontal rotary reaping body for reaping horizontal surfaces, and a horizontal rotary reaping body located on the side of the horizontal rotary reaping body. Some devices include an inclined rotary reaping body for reaping sloped surfaces. However, before Since the angle of inclination of the slope is not unified in the recording ridge, the inclination of the inclined rotary reaping body is If the angle is fixed, the tilting rotary cutting body does not follow the ridge slope and leaves uncut parts. This has the disadvantage of causing Therefore, the inclination angle of the tilting rotary reaping body can be adjusted freely. Various configurations have been proposed, but when the angle of the tilted rotary cutting body is changed, There is a risk that the rotating reaping bodies will interfere with each other, so with the conventional type, adjustment is unavoidable. Limit the angle range or move it away from the horizontally rotating reaping unit to avoid leaving uncut parts. The reality is that there are.

0003

[Means to solve the problem]

In view of the above-mentioned circumstances, the present invention has been developed to develop a lawn mower that can eliminate these drawbacks. It was invented with the purpose of providing a horizontally rotating reaping body that rotates, and a horizontally rotating reaping body that A lawn mower comprising a tilting rotary cutting body for mowing, wherein the machine body has a tilting rotary cutting body. An inclination angle adjustment means for adjusting the inclination angle of the rotary reaping body, and a state in which the inclination angle is maintained. The horizontal position adjustment means for adjusting the horizontal position of the tilt rotary cutting body and the tilt rotary mower through the horizontal position adjustment means. It is characterized by supporting the collection.

0004 With this configuration, the present invention can improve the ridge top surface and the slope regardless of the inclination angle of the slope surface. This allows the grass on the surface to be cut without leaving anything uncut.

[0005]

【Example】

Next, one embodiment of the present invention will be described based on the drawings. In the drawing, 1 is mowing The mower 1 has a vertically swinging mechanism connected to the front end of a traveling body 2 via a connecting arm 3. They are movably connected and can be fixed at any desired height by the adjustment arm 4. It's getting old.

[0006] 5 is a gear case fixed to the tip of the connecting arm 3; At one end of the input shaft 6, which is rotatably supported in the left-right direction on the engine 7, An input pulley 10 is provided which is interlocked and connected to the output pulley 8 of the output pulley 8 via a transmission belt 9. It is.

[0007] Reference numeral 11 denotes a first cutting blade shaft rotatably supported in the gear case 5 facing in the vertical direction. The first cutting blade shaft 11 has a driven bevel gear 12 provided at its upper end. It is driven by meshing with a drive bevel gear 13 provided on the input shaft 6. A horizontal rotary cutting blade 14 along a horizontal plane is provided on the lower end side protruding from the lower surface of the gear case 5. It is provided.

[0008] On the other hand, 15 is an upper cover that covers the upper part of the horizontal rotary cutting blade 14. -15 is a pair of front and rear upper brackets 1 fixed on the upper surface thereof and facing in the left and right direction. 6, but at one end of the upper cover 15 in the left and right direction, The extension cover 17 is attached via bolts 18 inserted into long holes 17a facing left and right. It is attached.

[0009] Furthermore, 19 is provided with a hinge 20 on the outer edge of the extension cover 17 so as to be able to swing vertically. The side cover 19 is provided with a vertical direction on the outer surface thereof. A pair of front and rear side brackets 21 facing each other are fixedly installed, and both side brackets 2 A base plate 22 is provided between the base plate 22 and the base plate 22, which is supported in a vertically adjustable manner. The plate 22 is biased rearward by a predetermined length L with respect to the front-rear position of the first cutting blade shaft 11. A second cutting blade shaft 23 is rotatably supported on the inner side of the side cover 19. An inclined rotary cutting blade 24 is provided at the tip of a second cutting blade shaft 23 that protrudes from the front.

0010 The inclined rotary cutting blade 24 has a flexible power transmission shaft 2 whose base end is connected to the input shaft 6. 5, it is driven simultaneously with the horizontal rotary cutting blade 14, and the horizontal The rotation direction of the rotary mower blade 14 and the inclined rotary mower blade 24 is determined according to the mowing direction of each rotary mower blade 14, 24. In order to wrap objects between both rotary cutting blades 14 and 24, the front ends of each rotating cutting blade 14 and 24 are The rotary cutting blades 14 and 24 are set in the direction of rotation toward the gap between them. , the circumferential speed of the inclined rotary cutting blade 24 is set higher than the circumferential speed of the horizontal rotating cutting blade 14. ing. That is, the number of teeth of the driving bevel gear 13 is greater than the number of teeth of the driven bevel gear 12. By reducing the angle, the inclined rotary cutting blade 24 can be rotated at high speed relative to the horizontal rotating cutting blade 14. However, as a result, the cuttings of the inclined rotary cutting blade 24 and the cutting objects are scattered on the inclined rotating cutting blade 24 side. The horizontally rotating cutting blade 14 can vigorously rake up the harvested material from the slope onto the horizontal surface. I'm starting to be able to do it.

[0011] On the other hand, 26 is a guide plate, and the base end of the guide plate 26 is located on the left side. The upper bracket 1 is connected to the upper bracket 1 through a bolt 27 inserted into a long hole 26a facing rightward. 6, while the tip part is fixed to the elongated hole 2 facing in the front-rear direction on the guide plate 26 side. 6b and the long hole 21a facing in the vertical direction on the side bracket 21 side. It is fixed to the upper end of the side bracket 21 via a bolt 28. That is, bolt 2 8 is loosened, the swing angle of the side cover 19 is adjusted by the action of the long holes 21a and 26b. The angle of inclination of the inclined rotary cutting blade 24 can be adjusted. When the bolts 18 and 27 are loosened, the guide action of the elongated holes 17a and 26a The horizontal position of the side cover 19, that is, the horizontal position of the inclined rotary cutting blade 24, can be adjusted. However, since the operation points for each adjustment are independent, the inclined rotary cutting blade 2 When adjusting the left and right position in step 4, the inclination angle is now maintained at a predetermined angle. ing. Note that the rotary cutting blades 14 and 24 employed in this embodiment are Harvesting is carried out using cord bodies 14a and 24a extending in the direction, but the rotation of the present invention It goes without saying that the reaping body is not limited to this one.

0012 In the embodiment of the present invention configured as described above, when cutting ridges, The inclination angle of the inclined rotary cutting blade 24 is adjusted to match the inclination angle of the ridge slope surface. wife To adjust the tilt angle of the rotary cutting blade 24, remove the side cover with the bolt 28 loosened. This is done by vertically swinging the blade 19, but here, the inclined rotary cutting blade 24 rotates horizontally. Necessary when interfering with the cutting blade 24 or between the inclined rotating cutting blade 24 and the horizontal rotating cutting blade 14. If there is a gap larger than that, remove the extension cover with bolts 18 and 27 loosened. 17 to adjust the left and right position of the inclined rotary cutting blade 24, the optimum gap can be obtained. It will be done. Therefore, in order to avoid interference between the rotary cutting blades 14 and 24, the rotating cutting blades 14 and 24 are tilted. Limiting the tilt adjustment range of the tilted rotary cutting blade 24, or It is possible to avoid placing the blade at a distance from the flat rotary cutting blade 14, and as a result, the work It is possible to do so without being subject to any restrictions and without leaving any uncut material.

[0013] Moreover, the inclination angle and left/right position adjustment of the inclined rotary cutting blade 24 are independently performed. The left side of the inclined rotary cutting blade 24 is When adjusting the right position, the inclination angle can be maintained at a predetermined angle. wife After adjusting the inclination angle of the inclined rotary cutting blade 24 to follow the slope, the inclination angle is maintained. The horizontal rotary cutting blade 14 and the inclined rotating cutting blade 24 can be adjusted horizontally while holding the blade. The gap can be adjusted with extremely high precision, and as a result, there is no interference between the rotary cutting blades. It is possible to further ensure prevention and prevention of uncut material between rotating cutting blades.

[0014] Further, in the embodiment, the inclined rotary cutting blade 24 is arranged vertically with respect to the side cover 19. Since it is mounted via the base plate 22 whose position can be adjusted, it can be positioned more precisely. Adjustments can be made.

[0015]

[effect]

In summary, since the present invention is constructed as described above, it is possible to reap horizontal surfaces. A horizontally rotating reaping body that performs cutting, and a horizontally rotating reaping body that is located on the side of the horizontally rotating reaping body that The top surface of ridges and slopes can be harvested at the same time. However, the tilting rotary reaping body only changes the tilt angle. The horizontal position can also be adjusted, so when adjusting the tilt angle, the tilting rotary reaping body can be Necessary when interfering with flat rotary reaping body or between inclined rotary reaping body and horizontal rotary reaping body If a gap larger than This can be avoided. Therefore, in order to avoid interference between the rotating reaping bodies, the inclined rotation Limit the tilt adjustment range of the reaping body, or rotate the tilted rotary reaping unit more horizontally than necessary. It does not need to be installed at a distance from the body, and as a result, the mowing work can be done easily. There may be restrictions on where this can be done, or there may be problems that leave uncut areas in the gaps between the rotary reaping bodies. You can resolve it at your convenience. Moreover, it maintains the pre-adjusted inclination angle. The left and right position of the tilting rotary reaping body can be adjusted while the The gap can be adjusted with extremely high precision, and this allows the rotation of the rotary reaping bodies to It is possible to further ensure interference prevention and prevention of uncut areas between rotating reaping bodies.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a reaper.

FIG. 2 is a perspective view of essential parts of the same as above.

FIG. 3 is an exploded front view with a portion of the main part cut away.

FIG. 4 is a front view of the same as above.

FIG. 5 is a partially cutaway front view of the same as above.

FIG. 6 is a transmission diagram of the reaper.

FIG. 7 is a front view showing the action.

FIG. 8 is a side view showing the positional relationship of cutting blades.

FIG. 9 is a perspective view showing the effect.

[Explanation of symbols]

1 Reaping machine 14 Horizontal rotary cutting blade 15 Upper cover 17 Extension cover 19 Side cover 24 Inclined rotary cutting blade 26 Guide plate

Claims (1)

[Scope of utility model registration request] 1. A grass cutter comprising a machine body comprising a horizontal rotary reaping body that reaps horizontal surfaces, and an inclined rotary reaping body that is located to the left and right sides of the horizontal rotary reaping body and reaps sloped surfaces. In this method, the machine body is provided with a tilt angle adjustment means for adjusting the tilt angle of the tilt rotary reaping body, and a lateral position adjustment means for adjusting the left and right position of the tilt rotary reaping body while maintaining the tilt angle. A lawn mower characterized by supporting its body.