JPH0567223U - Blowers for riding trimmers - Google Patents

Abstract

(57) [Summary] [Purpose] The crown of a tea tree was shredded in the course of one run of a mower, and then the branches were shredded. Provided is a blower for a riding trimmer. [Composition] A shredding mechanism D having a plurality of flare blades 36 for shredding the whole crown portion of a tea tree to a predetermined depth, and this shredding mechanism D
And a cutting mechanism E having cutting blades 50 and 51 for cutting the surface of the tea plant shredded by the cutting machine into a predetermined shape and adjusting the surface. A riding mower 1 for performing both operations of a branch, which is located substantially in the center in the width direction of the pruning mechanism E, is shredded by the shredding mechanism D, and is then shrunken by the pruning mechanism E. A blower mechanism F that blows off the cut branches and leaves between the ridges on both sides of the tea plant.
Was established.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a riding midfielder in which the crown of a tea tree is shredded in the course of one run of the mower and then shredded, and in particular the cut branches and leaves are blown down between the ridges on both sides of the tea tree. Air blower.

[0002]

[Prior Art]

 The Applicant has previously found that a shredding mechanism having a plurality of flare blades that shreds the entire crown portion of a tea tree to a predetermined depth, and the surface of the tea tree shredded by the shredding mechanism is cut into a predetermined shape. It has a pruning mechanism with a pruning blade for trimming, and proposes a riding weeder that performs both shredding and pruning work by a single stroke of the traveling mechanism.

[0003]

[Problems to be solved by the device]

 In the above-mentioned prior art, the cut branches and leaves that have been pruned after shredding may remain on the tea plant. There was a problem that the branch depth could not be confirmed (visually checked). Also, after cutting and pruning work, if cut branches and leaves are placed on the tea plant, it not only hinders the trimming work that is performed 2-3 months later, but also hinders the growth of tea leaves. However, there was a problem that it had to be removed. If the work speed is further increased during work by the mower, the cutting branches will accumulate on the front side of the pruning blade of the pruning mechanism, and the cutting function of the pruning blade will be impaired. There was also a problem that it was necessary to perform only the pruning work again depending on the situation.

The present invention has been made to solve the above problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the blower for a riding mower according to the present invention comprises a shredding mechanism having a plurality of flare blades for shredding the entire crown of a tea tree to a predetermined depth, and this shredding mechanism. It has a pruning mechanism with a pruning blade for pruning the surface of the shredded tea plant into a predetermined shape, and performs both chopping and pruning work by a single stroke of the traveling mechanism. In the riding lawn mower, it is located approximately in the center in the width direction of the pruning mechanism, and after being shredded by the shredding mechanism, the cutting branches and leaves that have been shredded by the shredding mechanism are blown into the ridges on both sides of the tea plant. It is characterized by having a blower mechanism that is designed to drop it.

[0006]

[Action]

 In the riding lawn mower of the present invention having the above structure, the entire crown portion of the tea tree is shredded by the shredding mechanism, and then shrunken by the pruning mechanism, and the cut branches and leaves are shredded by the blowing mechanism. Since it is blown down between the ridges on both sides of the tea plant, the operator operating the mower can check (visually) the depth of pruning while the mower is still on. In addition, after the shredding and pruning work is completed, there are no cutting leaves left on the tea plant, so there is no hindrance to the cutting work, which is a post-work, and there is an obstacle to the growth of tea leaves. Nor.

Further, even if the work speed is increased during work by the mower, the branches and leaves cut by the pruning blade of the pruning mechanism are always blown down between the ridges on both sides of the tea plant by the blowing mechanism. The cutting branches and leaves do not accumulate on the anterior side of the cutting, and the cutting function of the pruning blade is not impaired. Therefore, there will be no situation where the pruning traces become uneven and the pruning work only has to be performed again.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a riding trimmer, and this riding trimmer 1 includes a drive mechanism A, a traveling mechanism B, an operating mechanism C, a shredding mechanism D, a pruning mechanism E, and a blowing mechanism F.

The drive mechanism A is transmitted from the drive pulley 3 of the engine 2 mounted on the machine body 1 a to the intermediate pulley 5 via the belt 4, and from the intermediate pulley 5 via the belt 6 to the hydraulic pump 7. While being transmitted to the pulley 8, it is also transmitted to the pulley 11 of the blower 10 that constitutes the blower mechanism F via the belt 9. The belt 9 is provided with a tension roller 12. Further, it is transmitted from the intermediate pulley 5 to the pulley 15 of the transmission 14 via the belt 13 and to the cutter pulley 17 of the shredding mechanism D via the belt 16. A tension roller 18 and a tension roller 19 are provided on the belt 13 and the belt 16.

In the traveling mechanism B, power is transmitted from the drive gear 20 of the transmission 14 via the chain 21 to the drive gear 22 of the crawler wheels. An idle wheel 23 is provided on the side opposite to the drive gear 22 of the crawler wheel, and five auxiliary wheels 24 are provided below the drive gear 22 and the idle wheel 23. A belt crawler 25 is wound around the idler wheel 23, the auxiliary wheels 24, 24, ... To form a crawler wheel, and a pair of left and right crawler wheels are provided.

The operating mechanism C is provided with a control seat 26, a shift lever 27 is arranged on the left side of the control seat 26, and in the vicinity of the shift lever 27, a branch drive lever 28 and a branch upper and lower parts are provided. A lever 29 is provided. Here, the gear shift lever 27 is provided at a position lower than the branch drive lever 28 and the branch up / down lever 29. As a result, the gear shift lever 27 can be easily distinguished from the branch drive lever 28 and the branch up / down lever 29, and erroneous operation can be prevented.

An operation panel unit 30 is arranged in front of the control seat 26. The operation panel unit 30 has a side clutch lever 31, a drive switch 32 that is operated when driving the shredding mechanism D and the branching mechanism E, and a tension roller 12 in the blower 10 of the blower mechanism F that is turned on and off. An operation lever 33 and the like are provided. A clutch pedal 34 is provided below the control seat 26. Then, by depressing the clutch pedal 34 and operating the shift lever 27, the power to the traveling mechanism B is shifted.

In the shredding mechanism D, a rotary shaft 35 attached to a cutter pulley 17 is horizontally supported, and a large number of flare blades 36 are circumferentially spaced 120 ° on the peripheral surface of the rotary shaft 35. The electromagnetic clutch 37 is provided at the side end of the rotary shaft 35. Then, by rotating the electromagnetic clutch 37 on and off, the rotary shaft 35 is rotationally driven and stopped. Both ends of the rotary shaft 35 are supported by a pair of left and right support plates 39 having four guide holes 38, and a height adjusting member 41 having a screw portion 40 is attached to both support plates 39. An end portion of an adjusting screw 43 rotatably attached to the frame 42 is screwed to the screw portion 40. By tightening or loosening the adjusting screw 43, the height of the rotary shaft 35 is changed. By this, the heights of the plurality of flare blades 36, that is, the cutting height of the tea plant are adjusted.

A front cover 44 is rotatably attached to the front edge of the frame 42 via a hinge 45, and the opening angle is adjusted at the end of the front cover 44. An adjusting member 46 for this purpose is attached. When adjusting the opening angle by the adjusting member 46, by inserting positioning pins (not shown) of the adjusting member 46 into the plurality of positioning holes 47 provided in the front edge portion of the frame 42, the front cover 44 Can be opened with any opening. On the other hand, when the front cover 44 is closed, the positioning pin of the adjusting member 46 is pulled out from the positioning hole 47, so that the front cover 44 is rotated to a fixed position by its own weight.

The branching mechanism F is provided with a curved hood 48, and inside the hood 48, a crankcase 49 having a hydraulic motor at one end is provided, and is connected to the crankcase 49. A reciprocating upper-branch cutting blade 50 and a lower-branch cutting blade 51 are arranged so as to reciprocate in an arc shape by a hydraulic motor over the entire length of the hood 48. Height position adjusting members 52 having a plurality of positioning pins are attached to the left and right ends of the hood 48, and the hood 48, the upper-branch cutting blade 50, and the lower-branch cutting blade 51 are vertically adjusted. The height position adjusting member 52 is attached to a mounting plate 53, and an angle adjusting device 54 is provided between the height position adjusting member 52 and the mounting plate 53. The angle of the lower cutting blade 51 in the vertical direction is set arbitrarily.

The left and right mounting plates 53 are supported by the parallel link 55 so as to be vertically movable between the left and right mounting plates 53, and an intermediate position of a connecting frame 56 connecting the left and right mounting plates 53, 53 to the upper body 1b. A hydraulic cylinder 57 is provided between them. The height of the upper cutting blades 50 and the lower cutting blades 51, that is, the depth of the cutting branches, is set on the control seat 26 by operating the levers 29 for raising and lowering the branching portion to expand and contract the hydraulic cylinder 57. You can change it. A guide plate 58 is erected on the upper surface of the hood 48.

The blower mechanism F connects two branched blower tubes 59 and 60 to the blower port of the blower 10, and the nozzles 59 a and 60 a of the blower tubes 59 and 60 are connected to the hood 48 at a substantially intermediate position. At the front side of the guide plate 58, the tea branches and leaves are arranged so as to cross each other toward the left and right, and the branches and leaves of the tea that are pruned by the upper-branch cutting blade 50 and the lower-branch cutting blade 51 are placed between the left and right ridges. I try to blow it off. The nozzles 59a and 60a of the blower pipes 59 and 60 are supported by the connecting frame 56 via the support arms 61 and 62, and the direction of the nozzles 59a and 60a is adjusted by adjusting the screw of the attachment part. It is possible to save. The blower operation lever 33 is used to operate and stop the blower 10.

The riding brush cutter 1 having such a configuration is used as follows. First, before starting the work, the blade heights of the shredding mechanism D and the pruning mechanism E are adjusted. That is, in the shredding mechanism D, the support plate 39 is moved up and down by tightening or loosening the adjustment screw 43. As a result, the rotary shaft 35 attached to the support plate 39 moves up and down, so that the position of the flare blade 36 is adjusted. Next, the front cover 44 is rotated and the positioning pin of the adjusting member 46 is inserted into one of the positioning holes 47 provided in the front edge of the frame 42. As a result, the front cover 44 is held in a state of having a predetermined opening.

On the other hand, in the pruning mechanism E, the height position adjusting member 52 vertically adjusts the hood 48, the upper pruning blade 50, and the lower pruning blade 51, and the angle adjusting device 54. To adjust the angle in the vertical direction. The work is started after the up-and-down adjustment of both cutting blades. In the pruning mechanism E, the pruning section up-and-down lever 29 is operated during the work to expand and contract the hydraulic cylinder 57, thereby The height position of the upper branch cutting blade 50 and the lower branch cutting blade 51, that is, the branch depth can be changed in the control seat 26.

On the other hand, the driving force from the engine 2 is transmitted to the intermediate pulley 5 via the driving pulley 3 and the belt 4, and the driving force transmitted to the intermediate pulley 5 is transmitted from the intermediate pulley 5 to the belt 6, It is transmitted to the hydraulic pump 7, the blower 10, the transmission 14, and the rotating shaft 35 of the shredding mechanism D via 9, 13, and 16. In the traveling mechanism B, power is transmitted from the drive gear 20 of the transmission 14 to the drive gear 22 of the crawler wheel via the chain 21, and the belt crawler 25 is rotated to travel. The shifting operation of the crawler wheels is performed by the shifting lever 27 of the speed changer 14.

The steering operation of the airframe is performed by the side clutch lever 31. In the shredding mechanism D, the electromagnetic clutch 37 is turned on and off to drive and stop the rotation of the rotary shaft 35. In the pruning mechanism E, by operating the pruning drive lever 28, the hydraulic motor in the crankcase 49 is turned on and off to drive and stop the upper pruning blade 50 and the lower pruning blade 51.

In such a state, the riding brush cutter 1 works while advancing along the row of tea trees. The ridge-shaped tea plant is first shredded by the flare blade 36 of the shredding mechanism D into shreds, and then cut by the upper-branch cutting blade 50 and the lower-shear cutting blade 51 of the pruning mechanism E. The part is pruned. At this time, a large number of flare blades 36 rotate at a high speed in a direction opposite to the traveling direction of the riding mower 1, so that the tea plant is shredded into a few millimeters and discharged backward. .. The released tea tree fragments fall from the upper part of the tea tree to the lower field of the field.

On the other hand, the branches and leaves of the middle cut portion of the tea tree cut by the pruning cutting blades 50 and 51 of the pruning mechanism E ride on the hood 48, and here, from the blower 10 of the blowing mechanism F to the blower pipe 59. , 60 is blown by the nozzles 59a, 60a to blow off the branches and leaves on the hood 48 along the guide plate 58 between the ridges on the left and right sides. The directions of the nozzles 59a and 60a of the blower pipes 59 and 60 are adjusted by adjusting the screws of the mounting portions of the support arms 61 and 62.

Therefore, the operator who operates the mower 1 can confirm (visually) the depth of the pruning by looking backward, and the depth of the pruning can be adjusted accurately. Further, after the completion of the chopping and pruning work, there are no cut branches or leaves left on the tea plant, so there is no hindrance to the subsequent cutting work, and there is no hindrance to the growth of tea leaves. Furthermore, even if the work speed is increased during work by the mower 1, the branches and leaves cut by the pruning mechanism are always blown down between the ridges on both sides of the tea plant by the blowing mechanism, so the front side of the pruning blade is There is no accumulation of cutting branches and leaves, which does not impair the cutting function of the pruning blade. For this reason, there is no unevenness in the traces of pruning.

[0025] Furthermore, since all the tea tree pieces that have fallen in the field below the tea tree are extremely finely chopped, they are weathered and decomposed quickly, and are effective as organic fertilizers. Since it prevents direct sunlight, it also has the effect of preventing dryness and cold.

[0026]

[Effect of the device]

 As described above, according to the air blower in the riding trimmer of the present invention, the cutting branches that have been shredded by the shredding mechanism and then pruned by the pruning mechanism are left and right by the air blowing mechanism. It is blown down between the ridges on both sides, allowing the operator who operates the mower to check (visually) the depth of the pruning while the mower is still on, making it easy to adjust the mowing depth. As a result, the workability is good, and the highly accurate shredding / pruning / cutting work can be performed efficiently. In addition, after the shredding and pruning work is completed, there are no cutting leaves left on the tea plant, so there is no hindrance to the post-cutting work, which is an obstacle to tea leaf growth. There is no.

Further, even if the working speed is increased during work by the mower, the branches and leaves cut by the pruning blade of the pruning mechanism are always blown down by the air blowing mechanism between the ridges on the left and right sides of the tea plant. Therefore, the cutting branches and leaves do not accumulate on the front side of the cutting blade, and the cutting branches do not impair the cutting function of the cutting blade. Therefore, the work efficiency can be improved, and the situation that the pruning trace has irregularities and the pruning work must be performed again does not occur.

[Brief description of drawings]

FIG. 1 is a right side view showing an embodiment of a riding mower of the present invention.

FIG. 2 is a left side view of the riding trimmer of FIG.

FIG. 3 is a rear view showing the riding trimmer of FIGS. 1 and 2.

FIG. 4 is a partial front view showing the riding trimmer of FIGS. 1 and 2.

[Explanation of symbols]

 1 Riding mower 1a Airframe 1b Upper airframe A Drive mechanism 2 Engine 4, 6, 9, 13, 16 Belt 5 Intermediate pulley 7 Hydraulic pump 14 Transmission B Travel mechanism 22 Drive gear 23 Idler wheel 24 Auxiliary wheel 25 Belt crawler C Operation mechanism 26 Control seat 27 Gear shift lever 28 Branch drive lever 29 Branch up / down lever 30 Operation panel 31 Side clutch lever 33 Blower operation lever D Shredding mechanism 35 Rotating shaft 36 Flare blade 37 Electromagnetic clutch 41 Height adjusting member 43 Adjusting screw 44 Front cover 46 Adjusting member E Shearing mechanism 48 Hood 49 Crankcase 50,51 Shearing blade 52 Height position adjusting member 54 Angle adjusting device 55 Parallel link 56 Connecting frame 57 Hydraulic cylinder 58 Guide plate F Blower mechanism 10 Blower 59,60 Blower tube 59a, 60a Nozzle 61,62 Support arm

Claims (1)

[Scope of utility model registration request] 1. A shredding mechanism having a plurality of flare blades for shredding the whole crown portion of the tea tree to a predetermined depth, and the surface of the tea tree shredded by the shredding mechanism is cut into a predetermined shape to be trimmed. And a pruning mechanism having a pruning blade for carrying out both the chopping and pruning operations by one stroke of the traveling mechanism by self-propelling. At the time of riding, a blower mechanism is provided that blows off the cut branches that have been shredded by the shredding mechanism after being shredded by the shredding mechanism between the ridges on both sides of the tea plant. Blower for mowers.