JP3001286U - Street tree pruning machine - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] By simultaneously and automatically performing the pruning work of roadside trees and the accumulation work of cuttings on the road side, it is possible to reduce the number of workers and improve work efficiency. Try at the same time. [Structure] A horizontal cutting blade mechanism 20 including a cutting blade extending in a substantially horizontal direction on a trolley 1, and mowing leaves pruned along the horizontal cutting blade mechanism are sequentially drawn from an upper surface of a roadside tree toward a side surface thereof. A horizontal pruning unit 2 having a leaf scraping mechanism 21 and a first discharging mechanism for collecting scraped cutting leaves and discharging the collected cutting leaves onto a road outside the curb, and a cutting blade extending in a substantially vertical direction. A second cutting blade mechanism 70 provided with a cutting blade and a cutting blade provided at the lower end of the cutting blade, which is cut by the vertical cutting blade mechanism 70 and drops downward, and discharges it onto the road outside the curb. And a vertical pruning unit with mechanism 90.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a pruning machine for pruning a street tree, particularly a so-called green belt that is implanted in a belt-like dense state along a curb of a road and mainly plays a role of guiding the eyes of a driver. Is.

[0002]

[Prior art]

 If this kind of roadside tree is neglected daily, the branches and leaves will stretch and spoil the aesthetics, and since it is located on the side of the road, it may obstruct traffic in some cases. It needs to be arranged. In this case, in view of the above-mentioned functional surface, this kind of street tree is usually a rectangular shape in which both the upper surface 100a and both side surfaces 100b, 100b are cut into a plane shape as shown in FIG. It is pruned in cross section.

In this way, when pruning the street tree 100 into a rectangular cross section, conventionally, a horizontal pruning mechanism having a pair of clipper-shaped cutting blades that relatively reciprocate, and a pair of clipper-shaped cutting blades have been conventionally used. Using a vertical tree pruning machine with a vertical pruning mechanism set on a cart, etc. in a substantially orthogonal state, while moving it along the curb 101, the horizontal pruning mechanism is used to move the upper surface 100a of the street tree 100. Also, a method of cutting each side surface 100b of the roadside tree 100 by a vertical pruning mechanism has been adopted.

[0004]

[Problems to be solved by the device]

 However, in such a conventional street tree pruning machine, as shown in FIG. 7, the cut leaves 104 cut by the horizontal pruning mechanism remain on the upper surface 100a of the street tree 100 and also by the vertical pruning mechanism. A part of the cut leaf 104 that has been cut falls to the road 103 side from the curb 101, but most of it falls down along the side surface 100 b of the road tree 100 and falls to the skirt of the road tree 100. Will be collected at the corner between the section and the planting section 102.

Therefore, when piling and carrying out the cut leaves 104, the cut leaves 104 on the roadside tree surface 100a and the cut leaves 104 on the soil planting portion 102 are manually scraped by hand. After being carried out on the road 103 outside the curb 101, it must be collected by a self-propelled road cleaning vehicle, etc., which requires a large number of workers and the work of scraping the cut leaves 104. Since it is work, there was a problem that the work efficiency was low and inferior to the number of workers.

In view of the above, the present invention is capable of simultaneously and automatically performing horizontal / vertical pruning work of street trees and collecting work of cut leaves on the road side, thereby reducing the number of working personnel and working efficiency. It was proposed as a proposal for a street tree pruning machine that can simultaneously improve the road.

[0007]

[Means for Solving the Problems]

 In the present invention, as a concrete means for solving such a problem, in a street tree pruning machine that prunes a street tree vegetated inside a curb arranged along the road side from the road side, along the curb The movable carriage is equipped with a horizontal cutting blade mechanism with a cutting blade extending in a substantially horizontal direction, and the cutting blades arranged along the horizontal cutting blade mechanism and mowed by the horizontal cutting blade mechanism are sequentially cut. A cutting leaf scraping mechanism that scrapes from a top surface of a roadside tree to its side surface, and a first discharging mechanism that collects cutting leaves scraped by the cutting leaf scraping mechanism and discharges the cutting leaves onto a road outside the curb. A vertical pruning unit equipped with a horizontal pruning unit, a cutting blade extending in a substantially vertical direction, and a vertical cutting blade mechanism provided at the lower end of the vertical cutting blade mechanism for cutting and dropping downward. Received cuttings and discharged it onto the road outside the curb Constitutes mounted a vertical pruning unit and a second discharging mechanism that.

[0008] In this case, the horizontal cutting blade mechanism uses the horizontal cutting blade mechanism to arrange the position in the width direction of the street tree, the extension angle in the up and down directions, the extension angle in the longitudinal direction of the street tree, and the rotation around the axis thereof. The vertical cutting blade mechanism can adjust the moving angle and the vertical angle of the road tree in the height direction of the street tree, the extending angle of the street tree in the width direction, and the longitudinal direction of the street tree. By making it possible to adjust both the exit angle and the rotation angle around its axis, the optimum cutting condition is realized according to various conditions such as the condition of the roadside tree or the relative positional relationship between the roadside tree and the road. Is something that can be done.

Further, the cutting leaf scraping mechanism in the horizontal pruning unit is composed of a plurality of scraping claws that move from the center in the width direction of the street tree toward the side surface, and the first discharging mechanism is the above. When the shooter is located at the end of the cutting leaf scraping mechanism and receives the scraped leaf scraped by the cutting leaf scraping mechanism and guides it to the outside of the curb, the horizontal cutting blade mechanism allows The cut leaves are not left on the upper surface of the roadside tree but are collected by the cut leaf scraping mechanism and discharged directly from the shooter to the road side. Further, the second discharge mechanism in the vertical pruning unit is rotated in a state where they are substantially opposed to the direction in which the cut leaves fall to apply a centrifugal force to the cut leaves, and to the periphery of the cut leaf discharge disks. If a guide member is provided which directs the scattering direction of the cut leaves, which are provided and scattered by the cut-leaf discharge disc, to the outside of the curb, the cut leaves cut by the vertical cutting blade mechanism are cut-cut discs. Due to the scattering action by the guide and the guide work by the guide member, it is discharged onto the road outside the curb without accumulating at the skirt of the roadside tree.

[0010]

[Action]

 In the present invention, with the above configuration, horizontal and vertical pruning of street trees are performed simultaneously in parallel by the horizontal cutting blade mechanism and the vertical cutting blade mechanism.In this case, the cutting blades cut by the horizontal cutting blade mechanism are The cut leaves cut by the vertical cutting blade mechanism are collected on the road 1 outside the curb without remaining on the street tree side. For this reason, it is not necessary for a worker to manually scrape the cut leaves left on the upper surface side or the hem portion of the street tree after pruning to the road side as in the past, and the work is simplified.

Further, in this pruning work, more appropriate horizontal pruning and vertical pruning are realized by appropriately adjusting the extension angles of the horizontal cutting blade mechanism and the vertical cutting blade mechanism according to working conditions. It is a thing.

[0012]

[Effect of device]

 Therefore, according to the road tree pruning machine of the present invention, since it is not necessary for the worker to scrape the cuttings left on the road tree side to the road side after pruning, it is possible to reduce the number of workers. Since it does not depend on manual work, it has the effect of dramatically increasing work efficiency.

Further, since more accurate horizontal pruning and vertical pruning are realized by adjusting the extension angle and the like of the horizontal cutting blade mechanism and the vertical cutting blade mechanism, the finished state is improved and the aesthetics of the road can be improved. There is also the effect.

[0014]

【Example】

 Hereinafter, the street tree pruning machine of the present invention will be specifically described with reference to the accompanying drawings.

FIG. 1 shows a street tree pruning machine according to an embodiment of the present invention. This street tree pruning machine is, for example, as shown in FIG. 6, densely planted in a planting portion 102 provided between left and right curbs 101, 101, which are arranged opposite to each other in a belt shape at a predetermined interval in the widthwise central portion of the road. For cutting the street tree 100 having a rectangular cross section vegetated in a tree shape, the upper surface 100a and its both side surfaces 100b, 100b are cut into planes from the outside of the curbs 101, 101 on the road 103, respectively. The self-propelled carriage 1 traveling on the road 103 along the curb 101 is equipped with a horizontal pruning unit 2 and a vertical pruning unit 3 described later.

Self-propelled bogie 1 The self-propelled bogie 1 is a substantially rectangular bogie provided with a total of six wheels 8, 8 ... The driver's seat 9 is arranged near the right side of the substantially central part of the vehicle, and a pair of front and rear side rollers 10, 10 are attached to the side surface 1a on the driver's seat 9 side, so that the side rollers 10, 10 roll on the curb 101. By doing so, it becomes easy to keep the distance between the self-propelled carriage 1 and the curbstone 101, that is, the distance between the self-propelled carriage 1 and the street tree 100 constant.

Further, a horizontal pruning unit 2 and a vertical pruning unit 3 which will be described later are arranged in front of and behind the driver's seat 9 of the self-propelled carriage 1, and these horizontal pruning unit 2 and When pruning the roadside tree 100 using the vertical pruning unit 3, the driver can drive the self-propelled carriage 1 while visually checking the working state.

Further, on the front part of the self-propelled carriage 1, a first guide rail 4 and a second guide for supporting the horizontal pruning unit 2 and the vertical pruning unit 3 movably in the vehicle width direction. The drail 5 is fixedly disposed in parallel with the vehicle front-rear direction at a predetermined distance in a state of straddling substantially the entire length in the vehicle width direction. Further, rack gears 6 and 7 are fixedly arranged on the lower surfaces of the guide rails 4 and 5 along the guide rails 4 and 5, respectively, as shown in FIGS. 2 and 4.

Horizontal Pruning Unit 2 The horizontal pruning unit 2 is, as shown in FIGS. 2 and 3, a horizontal cutting blade mechanism 20 provided with a pair of upper and lower clipper-shaped cutting blades 20A and 20B which relatively reciprocate. A cutting leaf scraping mechanism 21 having a plurality of scraping claws 22, 22, which are arranged in parallel to the horizontal cutting blade mechanism 20 and are driven by a chain, is provided immediately after the horizontal cutting blade mechanism 20. There is.

The horizontal cutting blade mechanism 20 has its base end side connected to a base member 24 via a reduction drive unit 28, and a hydraulic motor 27 attached to the base member 24 drives the reduction drive unit 28. It relatively reciprocates at a predetermined speed, and acts so as to sandwich the branches and leaves of the roadside tree 100 between the blades 20a, 20a of the pair of cutting blades 20A, 20B and shear them.

The cutting leaf scraping mechanism 21 has a base end portion supported together with the horizontal cutting blade mechanism 20 on the base member 24 side, and a drive sprocket (not shown) provided at the base end portion is decelerated. By being driven by the hydraulic motor 29 via the drive unit 30, each of the above-mentioned scratching pawls 22, 22, ... Is sequentially moved from its tip end side toward its base end side. In this case, the tip of each of the claws 22, 22, ... Is connected to the horizontal cutting blade mechanism 20 so that it is located near the blade base of each of the blades 20a, 20a ,. Relative position is set.

Further, a first vertical wall guide 31 made of a transparent acrylic plate is erected and fixed on the upper surface side of the cut leaf scraping mechanism 21 along the axial direction of the cut leaf scraping mechanism 21. At the same time, a second vertical wall guide 32 formed of a curved plate made of a steel plate is vertically fixed to the base end side of the first vertical wall guide 31 in a continuous manner. Further, a shooter 33 is attached at a lower position on the inner side in the bending direction of the second vertical wall guide 32, which is inclined downward in a curved shape toward the lifting columns 35, 35.

On the other hand, a slide mechanism 11 described below is arranged on the first guide rail 4. The slide mechanism 11 includes side guide rollers 13, 13, ... Which roll on both side surfaces of the first guide rail 4 on a slide body 12 which is a saddle seat for the first guide rail 4 from above. The upper guide rollers 14, 14 rolling on the upper surface of the first guide rail 4 and the lower guide rollers 15, 15 rolling on the lower surface are provided, respectively, which mesh with the rack gear 6 and are controlled by the hydraulic motor 16. It is configured to include a driven pinion gear 17. Therefore, the slide mechanism 11 is guided by the rollers by rotating the pinion gear 17 in the appropriate direction by the hydraulic motor 16 and is guided in the axial direction of the first guide rail 4 (that is, the vehicle width of the self-propelled carriage 1). Direction).

Further, at the front end of the slide mechanism 11, lower end portions of a pair of left and right lifting columns 35, 35 which are arranged in parallel at a predetermined interval and extend in a direction substantially orthogonal to the axial direction of the first guide rail 4 are provided. Are fixed respectively. Each of the elevating columns 35, 35 has a substantially U-shaped cross-sectional shape, and is arranged with the opening sides thereof facing each other. Then, the elevating table 36 described below is attached to the elevating columns 35.

The elevating table 36 is composed of a rectangular plate having a predetermined size, and one side surface thereof is elevating guide rollers 37, 37, which are rotatably fitted in the elevating columns 35, 35.・ ・ Is attached. Further, a bracket 41 and a bracket 43, which will be described later, are attached to the other side surface of the elevating table 36 so as to be appropriately spaced apart in the vertical direction and extend forward.

Further, a pair of chains 40, 40 having a predetermined length are stretched between the lifting table 36 and the lower ends of the lifting columns 35, 35. Each chain 40, 40 is mounted on a pair of left and right sprockets 39, 39 fixed to the rod end of a hydraulic cylinder 38, one end of which is pivotally supported on the lower end side of the lifting columns 35, 35. It is hung from around in a U shape. Therefore, the elevating table 36 receives the tension of the chains 40, 40 as the hydraulic cylinder 38 expands and contracts, and is vertically moved up and down within a stroke range twice that of the hydraulic cylinder 38. It will be.

In addition, the bracket 41 protruding from the elevating table 36 is provided with the elevating columns 35. A pivot shaft 42 is rotatably supported in a direction orthogonal to the axial direction of 35. Further, an arm 46 bent in a substantially U-shape is fixed to the pivot shaft 42, and the bent portion of the arm 46 extends in a direction orthogonal to the pivot shaft 42. The support shaft 47 is fixed. A guide cylinder 48 is rotatably fitted into the support shaft 47, and a rotary shaft 25 extending in a direction orthogonal to the axial direction is fixed to the guide cylinder 48. The rotary shaft 25 is provided in a guide cylinder 23 attached to the base member 24 on the side of the horizontal cutting blade mechanism 20 and the cutting blade scraping mechanism 21 in a direction substantially parallel to the axial direction of the horizontal cutting blade mechanism 20 and the like. It is rotatably fitted.

The guide cylinder 48 is prevented from coming off the support shaft 47 by a stop bolt 49, and its relative rotation is restricted by tightening the guide cylinder 48. The guide cylinder 23 is prevented from coming off from the rotary shaft 25 by a stop bolt 26, and its relative rotation is restricted by tightening the guide cylinder 23.

Further, the end portion of the portion of the arm 46 extending in the direction opposite to the extending direction of the support shaft 47 is capable of overlapping with the bracket 43. Further, the bracket 43 is formed with an arc-shaped elongated hole 44 having the center of curvature of the pivot shaft 42 as a center of curvature, and a bracket 45 arranged through the elongated hole 44 serves to fix the bracket 43. By tightening and fixing the arm 46 and the arm 46, the pivotal position of the pivot shaft 42, that is, the pivotal position of the support shaft 47 can be fixed at an arbitrary position.

In the horizontal pruning unit 2 configured as described above, the slide mechanism 11 moves in the vehicle width direction (direction of arrow ab) along the first guide rail 4 to thereby cause the horizontal cutting blade mechanism. The horizontal extension position of 20 is adjustable, and the horizontal pruning unit 2 itself is movable between a storage position shown by a solid line in FIG. 1 and a working position shown by a chain line in FIG. Further, the vertical position of the horizontal cutting blade mechanism 20 and the cutting blade scraping mechanism 21 can be adjusted by expanding and contracting the hydraulic cylinder 38 and moving the lifting platform 36 up and down in the direction of arrow cd. Further, by loosening the stop bolt 45 and rotating the support shaft 47 about the pivot shaft 42, the horizontal cutting blade mechanism 20 and the cut leaf scraping mechanism 21 move about the pivot shaft 42. It is tilted in the up-down direction (arrow ef direction) and the extension angle in the up-down direction can be adjusted. Further, by loosening the stop bolt 49 and rotating the rotary shaft 25, the horizontal cutting blade mechanism 20 and the cut leaf scraping mechanism 21 are moved in the horizontal direction (arrow gh direction) about the support shaft 47. ), The extension angle in the horizontal direction can be adjusted. Further, by loosening the stop bolt 26 and rotating the base member 24 around the rotation shaft 25, the horizontal cutting blade mechanism 20 and the cutting blade scraping mechanism 21 rotate about the rotation shaft 25 as an axis. The cutting angle of the horizontal cutting blade mechanism 20 with respect to the street tree 100 can be adjusted.

Vertical Pruning Unit 3 As shown in FIGS. 4 and 5, the vertical pruning unit 3 includes a vertical cutting blade mechanism 70 composed of a pair of cutting blades 70A and 70B which reciprocate relative to each other. The vertical cutting blade mechanism 70 is arranged so as to extend downward with its base end supported by the speed reduction drive unit 71, and the speed reduction drive unit 71 is provided with a hydraulic motor 72 via a bracket 73. Are linked to. Therefore, the vertical cutting blade mechanism 70 can reciprocate relative to each other by the hydraulic motor 72 to trim the side surfaces 100b of the street tree 100.

Further, between the lower end portion of the vertical cutting blade mechanism 70 and the lower end portion of a stay 88, which will be described later, which is arranged substantially parallel to the vertical cutting blade mechanism 70, the vertical cutting blade mechanism 70 is arranged so as to straddle both of them. A cut leaf discharge disc 90 is attached upward via a bracket 89. This cut leaf discharge disc 90 is provided with a plurality of discharge blades 91, 91, ... Radially on its upper surface side and is rotationally driven by a hydraulic motor 92. Further, an arc-plate-shaped guide member 93 formed of a transparent acrylic plate so as to surround a peripheral edge of the cutting leaf discharge disk 90 on the rear side in the traveling direction of the self-propelled carriage 1, is provided with the vertical cutting blade mechanism 70. It is attached so as to straddle the stay 88. In this case, the cut leaf discharge disc 90 is slightly inclined downward to the stay 88 side, and the guide member 93 has the end portion on the stay 88 side rearward of the self-propelled carriage 1 by a predetermined angle. It is leaning toward you. The rotation direction of the cut leaf discharge disc 90 is set in the direction of rotation from the vertical cutting blade mechanism 70 toward the stay 88, as shown by the arrow in FIG. Therefore, when the cut leaves 104 cut by the vertical cutting blade mechanism 70 fall downward and reach the cut leaf discharging disc 90, the cutting leaf discharging disc 90 imparts a centripetal force and the guide. It is guided by the member 93 and scattered from the stay 88 side toward the self-propelled carriage 1 side, and is discharged onto the road 103 outside the curb 101.

On the other hand, a slide mechanism 51 described below is arranged on the second guide rail 5. This slide mechanism 51 has a structure similar to that of the slide mechanism 11 on the side of the horizontal pruning unit 2, and a slide body 52 that is saddle-saddled from above the second guide rail 5 is attached to the second guide rail 5. Side guide rollers 53, 53, ... Rolling on both side surfaces of the guide rail 5, upper guide rollers 54, 54 rolling on the upper surface of the second guide rail 5, and lower guides rolling on the lower surface. Rollers 55, 55 are provided, and a pinion gear 57 that meshes with the rack gear 7 and is driven by a hydraulic motor 56 is provided. Therefore, the slide mechanism 51 is guided by the rollers by rotating the pinion gear 57 in an appropriate direction by the hydraulic motor 56 and is guided in the axial direction of the second guide rail 5 (that is, the vehicle width of the self-propelled carriage 1). Direction).

Further, at the front end of the slide mechanism 51, lower end portions of a pair of left and right lifting columns 59, 59 which are arranged in parallel at a predetermined interval and extend in a direction substantially orthogonal to the axial direction of the second guide rail 5 are provided. Are fixed respectively. The elevating columns 59, 59 each have a substantially U-shaped cross-sectional shape, and are arranged with their opening sides facing each other. Then, an elevating table 60 described below is attached to the elevating columns 59, 59.

The elevating table 60 is composed of a rectangular plate having a predetermined size, and one side surface thereof is elevating guide rollers 61, 61, which are rotatably fitted in the elevating columns 59, 59.・ ・ Is attached. Further, on the other side surface of the elevating table 60, an arm 66 is supported in a vertical and horizontal direction by a stay 68 and a stay 67 in a direction substantially orthogonal to the axial direction of the ascending and descending columns 59, 59. It is arranged to project.

Further, a pair of chains 64, 64 having a predetermined length are stretched between the lifting table 60 and the lower ends of the lifting columns 59, 59. Each of the chains 64, 64 has a pair of left and right sprockets 63, 63 fixed to the rod end of a hydraulic cylinder 62, one end of which is pivotally supported on the lower end side of the lifting columns 59, 59, from above. It is hung around in a U shape. Therefore, the elevating table 60 is vertically moved within the double stroke range of the hydraulic cylinder 62 by receiving the tension of the chains 64, 64 as the hydraulic cylinder 62 expands and contracts. It will be.

On the other hand, a fixed guide cylinder 74 is fixed to the arm 66 substantially parallel to the arm 66, and a support shaft 75 is rotatably fitted in the fixed guide cylinder 74. The support shaft 75 is provided with a flange 77 that abuts the flange 76 attached to the fixed guide cylinder 74, and the support shaft 75 is provided with the flange 76 and the flange 77 at a predetermined rotation position. By tightening the stopper bolt 78, the rotational position is fixedly held.

Further, a bracket 79 bent in a U shape is fixed to the tip of the support shaft 75, and an arm 81 is supported by the bracket 79 so as to be vertically swingable. There is. The vertical tilting position of the arm 81 with respect to the support shaft 75 has one end on the arm 81 side via a bolt 96 and the other end on the support shaft 75 via a bolt 97 provided in an elongated hole 95. It is adjustable by stays 94 connected to the respective sides.

A guide cylinder 83 extending in the up-down direction orthogonal to the axial direction of the arm 81 is fixed to the tip of the arm 81, and a support shaft 98 is rotatably fitted to the guide cylinder 83. Has been inserted. Further, the bracket 73 is fixed to the upper end of the support shaft 98, the bracket 73 is provided with a long hole 86, and the guide cylinder 83 is provided with a lever 84. The rotational position of the bracket 73 around the support shaft 98 is fixed and held by tightening the bracket 89 and the lever 84 at a predetermined position with a stop bolt 87.

In the vertical pruning unit 3 configured as described above, the amount of protrusion of the vertical cutting blade mechanism 70 from the self-propelled carriage 1 (that is, by the movement of the slide mechanism 51 in the direction of the arrow mn) is as follows. The position of the vertical cutting blade mechanism 70 in the width direction of the street tree 100 is adjustable, and the vertical cutting blade mechanism is moved up and down in the direction of the arrow oop by moving the hydraulic cylinder 62. The height position of 70 is adjustable. Further, by rotating the support shaft 75 with respect to the fixed guide cylinder 74, the vertical cutting blade mechanism 70 is tilted about the support shaft 75 in the direction of the arrow qr, and the vertical cutting blade mechanism 70 is automatically moved. The extension angle of the traveling vehicle 1 in the traveling direction (that is, the longitudinal direction of the roadside tree 100) can be adjusted. Further, by rotating the support shaft 98 in the arrow u-v direction with respect to the guide cylinder 83, the rotation angle around the axis of the vertical cutting blade mechanism 70 can be adjusted. Further, by tilting the arm 81 with respect to the support shaft 75, the vertical cutting blade mechanism 70 is tilted in the arrow x-y direction to increase the extension angle of the vertical cutting blade mechanism 70 in the street tree width direction. Can be adjusted.

Description of Pruning Work Next, the working state of pruning the street tree 100 using the street tree pruning machine configured as described above will be described.

At the time of pruning work, first, the self-propelled carriage 1 is positioned on the side of the curb 101, and the side rollers 10, 10 thereof are brought into contact with the curb 101 so that the self-propelled carriage 1 and the roadside tree 100 are formed. Adjust the spacing.

Next, the horizontal pruning unit 2 and the vertical pruning unit 3 are set to the working positions (the positions shown in FIGS. 2 and 4). Then, the positions of the horizontal cutting blade mechanism 20 and the vertical cutting blade mechanism 70 are adjusted according to the cutting height and the cutting width, and the extension of the street tree 100 and the street of the self-propelled carriage 1 caused by the inclination of the street. The respective extension angles of the horizontal cutting blade mechanism 20 and the vertical cutting blade mechanism 70 are adjusted according to various conditions such as relative inclination with respect to the tree 100. This completes the preparation work.

Next, with the horizontal cutting blade mechanism 20, the cutting blade scraping mechanism 21, the vertical cutting blade mechanism 70, and the cutting blade discharge disc 90 driven, the self-propelled carriage 1 is run at a predetermined speed. The horizontal cutting blade mechanism 20 prunes the street tree 100 on the upper surface 100a side, and the vertical cutting blade mechanism 70 prunes the side surface 100b of the street tree 100 in parallel.

In this case, first, in the horizontal pruning of the street tree 100 by the horizontal cutting blade mechanism 20, the cut leaves 104 cut by the horizontal cutting blade mechanism 20 are sequentially scratched by the claws 22 of the cut leaf scraping mechanism 21. , 22, and the guiding action of the first vertical wall guide 31 and the second vertical wall guide 32 causes the horizontal cutting blade mechanism 20 to be scraped to the proximal end side and collected on the shooter 33 side. . Then, the cut leaves 104 collected in the shooter 33 are discharged from the shooter 33 to the self-propelled carriage 1 side by a natural fall as shown by an arrow A in FIG. 3, and as shown in FIG. It is stored on the road 103. Further, in this horizontal pruning, since the first vertical wall guide 31 is made of a transparent acrylic plate, it is possible to confirm the horizontal pruning state of the driving vehicle of the self-propelled carriage 1 in the operating state. It is possible to achieve more accurate horizontal pruning work.

On the other hand, in the vertical pruning by the vertical cutting blade mechanism 70, the cut leaves 104 cut by the vertical cutting blade mechanism 70 fall on the cut leaf discharge disc 90 as they are. The cut leaves 104 dropped on the cut leaf discharge disc 90 are sequentially discharged to the self-propelled carriage 1 side due to the scattering action of the rotation of the cut leaf discharge disc 90 and the guiding action of the guide member 93, and the curbstone. Collected on road 103 outside 101. In this case, since the guide member 93 is transparent, the driver can check the vertical pruning state while driving the self-propelled carriage 1, and more accurate vertical pruning work can be realized. Is.

As described above, according to the street tree pruning machine of this embodiment, there is almost no cut leaf 104 on the street tree upper surface 100a after pruning and between the skirt of the street tree 100 and the curb 101. Almost all of the cut leaves 104 are not collected and are collected on the road 103 side. Therefore, as with the conventional pruning work using a road tree pruning machine, the worker manually cuts the cut leaves 104 remaining on the upper surface 100a of the road tree 100 or the hem of the road tree 100 to the road outside the curb 101. It is possible to reduce the number of workers and to perform an efficient pruning work without the need to scratch it on 103. Further, since the horizontal pruning unit 2 and the vertical pruning unit 3 are mounted on the self-propelled carriage 1, it is possible to reduce the fatigue of the worker as compared with the case where the conventional hand truck is used, for example. Is.

The cut leaves 104 collected on the road 103 are, for example, collected by a collection and transportation means such as a road cleaning vehicle and delivered to a predetermined place. After the work is completed, the horizontal pruning unit 2 and the vertical pruning unit 3 are stored on the side of the self-propelled carriage 1.

[Brief description of drawings]

FIG. 1 is a plan view of a street tree pruning machine according to an embodiment of the present invention.

2 is a II-II enlarged arrow view of FIG. 1. FIG.

FIG. 3 is a view on arrow III-III in FIG.

FIG. 4 is an enlarged view of IV-IV in FIG.

5 is a view taken along the line VV of FIG.

FIG. 6 is an explanatory view of a street tree pruning operation using the street tree pruning machine of the present invention.

FIG. 7 is an explanatory diagram of a street tree pruning operation using a conventional street tree pruning machine.

[Explanation of symbols]

1 is a self-propelled carriage, 2 is a horizontal pruning unit, 3 is a vertical pruning unit, 4 is a first guide rail, 5 is a second guide rail, 6 is a rack gear, 7 is a rack gear, 8 is a wheel, 9 is a driver's seat, 10 Is a guide roller, 11 is a slide mechanism, 1
2 is a slide body, 13 is a side guide roller, 14
Is an upper guide roller, 15 is a lower guide roller, 1
6 is a hydraulic motor, 17 is a pinion gear, 20 is a horizontal cutting blade mechanism, 21 is a cutting blade scraping mechanism, 22 is a scraping claw, 23 is a guide cylinder, 24 is a base member, 25 is a rotating shaft, 26 is a stop bolt,
27 is a hydraulic motor, 28 is a deceleration drive unit, 29 is a hydraulic motor, 30 is a deceleration drive unit, 31 is a first vertical wall guide, 32 is a second vertical wall guide, 33 is a shooter, 35 is a lifting column,
36 is a lift table, 37 is a lift guide roller, 38 is a hydraulic cylinder, 38 is a sprocket, 40 is a chain, 41 is a bracket, 42 is a pivot shaft, 43 is a bracket, 44 is a long hole, 45 is a fixing bolt, and 46 is a Arm, 47 is a spindle,
Reference numeral 48 is a guide cylinder, 49 is a retaining bolt, 51 is a slide mechanism, 52 is a slide body, 53 is a side guide roller, 54 is an upper guide roller, 55 is a lower guide roller, 56 is a hydraulic motor, 57 is a pinion gear, and 59 is a lifting column. , 60 is a lifting table, 61 is a lifting guide roller, 6
2 is a hydraulic cylinder, 63 is a sprocket, 64 is a chain, 66 is an arm, 67 is a stay, 68 is a stay, 70
Is a vertical cutting blade mechanism, 71 is a speed reduction drive unit, 72 is a hydraulic motor, 73 is a bracket, 74 is a fixed guide tube, 75 is a support shaft, 76 is a flange, 77 is a flange, 78 is a fixing bolt, 79 is a bracket, 80 Is a spindle, 81 is an arm, 8
2 is a guide tube, 83 is a guide tube, 84 is a lever, 85 is a bracket, 86 is a long hole, 87 is a fixing bolt, 88 is a stay, 89 is a bracket, 90 is a cutting leaf discharge disk, 91 is a lifting guide roller, 92 is a hydraulic motor, 93 is a guide member, 94 is a stay, 95 is an elongated hole, 96 is a bolt, 97 is a bolt, 98 is a spindle, 100 is a roadside tree, 101 is a curb,
102 is a soil planting part, 103 is a road, and 104 is a cut leaf.

Claims (3)

[Scope of utility model registration request] 1. A street tree pruning machine for pruning a street tree vegetated on the inside of a curb arranged along the road side of the road from the road side, wherein a carriage that is movable along the curb, A horizontal cutting blade mechanism provided with a cutting blade extending in a substantially horizontal direction and cutting leaves arranged along the horizontal cutting blade mechanism and mowed by the horizontal cutting blade mechanism are sequentially arranged from the upper surface of the roadside tree to its side surface side. A horizontal pruning unit including a scraped leaf scraping mechanism for scraping and a first discharging mechanism for collecting scraped leaves scraped by the scraped leaf scraping mechanism and discharging the scraped leaves onto a road outside the curb; A vertical cutting blade mechanism having a cutting blade extending in the vertical direction, and a cutting blade provided at the lower end of the vertical cutting blade mechanism, cut by the vertical cutting blade mechanism, and falling downward to receive it, A vertical pruning unit with a second discharge mechanism for discharging onto the road outside the curb. A street tree pruning machine characterized by being attached. 2. The horizontal cutting blade mechanism according to claim 1, wherein the horizontal cutting blade is arranged at a position in a width direction of the street tree, an extension angle in a vertical direction, an extension angle in a longitudinal direction of the street tree, and an axial center thereof. The rotation angle is adjustable, and the vertical cutting blade mechanism is arranged such that the arrangement position in the height direction of the street tree, the extension angle in the width direction of the street tree, and the extension angle in the longitudinal direction of the street tree. A road tree pruning machine characterized in that the rotation angle around the axis and the rotation angle can be adjusted. 3. The cutting mechanism according to claim 1, wherein the cut leaf scraping mechanism in the horizontal pruning unit is composed of a plurality of scraping claws that move from a widthwise center of the street tree toward a side surface thereof. The first discharge mechanism is formed of a shooter located at an end of the cut leaf scraping mechanism, receives the cut leaf scraped by the cut leaf scraping mechanism, and guides the fall to the outside of the curb. Further, the second discharging mechanism in the vertical pruning unit is provided in the cutting leaf discharging disc for rotating in a state of being substantially opposed to the cutting leaf dropping direction to impart a centrifugal force to the cutting leaf, and on the periphery of the cutting leaf discharging disc. A road tree pruning machine, comprising: a guide member for directing the scattering direction of the cut leaves scattered by the cut-leaf discharge disc to the outside of the curb.