JP2005169263A - Movable bush cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable bush cutter capable of drastically enhancing the efficiency of treatment and performing the bush-cutting with high safety. <P>SOLUTION: The movable bush cutter comprises a movable vehicle 12, a work arm 18 arranged on the movable vehicle 12 so that the direction thereof can be changed into the desirable direction and the height thereof can be controlled, a suction means 32 disposed along the work arm 18 and a crushing machine 26 which is disposed on the work arm 18 and is used for crushing branches and leaves. Further, the movable bush cutter is provided with taking-in mechanisms 50, 60 for taking the branches and leaves crushed by the crushing machine 26 into the suction means 32. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile brush cutter that can be suitably used for cutting branches and leaves in high places.

  Roadside trees, due to growth, obstruct road traffic, deteriorate road environment (poor visibility of national road signs, poor visibility of prefectural roads, city roads, town roads, etc., and lack of sunshine, or (traffic hindrance), etc. Therefore, branches and leaves that interfere with trees need to be pruned regularly.

  For example, there is a demand for a machine that can remotely remove the obstacle branches and leaves and easily perform the subsequent cleaning process.

The applicant of the present application discloses a mobile brush cutter in Patent Document 1 that can trim branches and leaves at a desired position and easily process the processed product. This mobile brush cutter performs cutting by pressing a working machine against branches and leaves (plants and the like).
JP 2003-143918 A

  However, in actual trimming, it is preferable to increase the processing efficiency by taking in the branches and leaves more actively. In addition, from the viewpoint of post-processing and safety, it is preferable to minimize scattering of processed objects such as branches and leaves.

  Accordingly, an object of the present invention is to provide a mobile brush cutter that greatly increases processing efficiency and performs highly safe brush cutting.

  Examples of the solving means of the present invention are as follows.

(1) A movable vehicle (12), a work arm (18) arranged on the vehicle (12) so that its orientation can be changed in a predetermined direction and its height can be adjusted, and the work arm (18) And a crusher (26) for crushing the branches and leaves provided at the tip of the working arm (18), and the branches and leaves crushed by the crusher (26). A mobile brush cutter characterized in that an intake mechanism (50, 60, 70) for taking in the suction means (32) is provided at the inlet of the suction means (32).

(2) The take-in mechanism (50, 60) has rollers (52, 62) for guiding the branches and leaves, and the branches and leaves are guided by the rollers (52, 62) to The above-described mobile brush cutter, which is taken into the openings (265, 665).

(3) The roller (52, 62) is connected to an electric motor, and the branches and leaves are automatically taken into the opening (265, 665) by the rotation of the roller (52, 62). Mobile brush cutter.

(4) The take-in mechanism (50) has a guide arm (51), and the guide arm (51) is pivotally connected to the vicinity of the opening (265) of the crusher (26). ) Turns to guide the branches and leaves to the opening (265).

(5) The crusher (26) has a cover (664), the take-in mechanism (60) has a moving member (61) movable along the cover (664), and the moving member (61) The above-described mobile brush cutter is characterized in that the opening (665) of the cover (664) can be opened and closed in accordance with the movement of the cover.

(6) The above-mentioned movement characterized in that the crusher (26) has a crushing claw (263) for crushing branches and leaves, and a part of the crushing claw (263) is configured as a blade with an acute angle. Type brush cutter.

(7) The above-mentioned mobile brush cutter, wherein the crushing claw (263) is formed in a double-edged shape.

(8) The take-in mechanism (70) has a swivel cover (751), and the swivel cover (751) is turnably connected in the vicinity of the opening (265) of the crusher (26). ) Turns to guide the branches and leaves to the opening (265).

  According to the present invention, the branches and leaves can be easily eaten. In particular, work can be performed efficiently regardless of the shape and direction of the branches and leaves.

  If a roller is provided in the take-in mechanism so that the branches and leaves are guided by the roller and taken into the opening, a large amount of branches and leaves can be taken in. If you connect the roller to an electric motor, you can take in the branches more actively.

  If the guide arm provided in the take-in mechanism is turned to guide the branches and leaves, the opening can be substantially expanded and a large amount of branches and leaves can be taken in. Further, if the swivel cover is provided, the opening can be narrowed by closing the swivel cover to prevent the foliage and the crushing claws from being scattered.

  If the opening can be opened and closed by a moving member that can move along the cover of the take-in mechanism, it is possible to prevent the branches and leaves and the crushing claws from being scattered.

  If a part of the crushing claw is formed as a blade with an acute angle, it is possible to crush even a slightly larger branch that can crush only a twig with a conventional blade.

  If the crushing claw is composed of double-edged blades, it can be effectively cut off even when the rotating body is rotated in reverse.

  The present invention relates to a movable vehicle, a working arm arranged on the vehicle so that its orientation can be changed in a predetermined direction and its height can be adjusted, suction means provided along the working arm, and a working arm Provided with a crusher for crushing branches and leaves, and in a mobile brush cutter configured to suck the crushed branches and leaves with suction means, provided a take-in mechanism for taking in the branches and leaves into the crusher Features a mobile brush cutter characterized by

  The take-in mechanism may have a roller, and the branches and leaves may be guided by the roller and taken into the opening. In this case, it is preferable that the roller is connected to an electric motor and the branches and leaves are actively taken into the opening by the rotation of the roller. However, the present invention includes a case where a roller that is simply rotatable is set. In the embodiment described below, the roller axis is set to be horizontal with the ground, but can be set to be vertical or oblique.

  It is preferable that the take-in mechanism has a guide arm, the guide arm is pivotally connected in the vicinity of the opening of the crusher, and the branch is guided to the opening by turning the guide arm. The structure which takes in a branch leaf by providing a roller in the front-end | tip of a guide arm is preferable. In the embodiments described below, the guide arm can be turned in the vertical direction, but can be turned in the horizontal direction or in an oblique direction.

  The crusher may have a cover, the take-in mechanism may have a moving member that can move along the cover, and the opening of the cover may be configured to open and close according to the movement of the moving member. In the embodiment described below, the moving member is shown as a slide cover that slides along the cover, but the movement of the moving member can also be a collage movement. Although the cover and the moving member (slide cover) are moved along the arc surface, the cover may be partially constituted by a plane, and the moving member made of a plane may be moved along the plane.

  The crusher has a crushing claw for crushing the branches and leaves, and a part of the crushing claw can be formed as a blade with an acute angle. It is good to comprise a crushing claw with a double blade.

  A swivel cover can be provided near the opening of the crusher. The swivel cover is preferably provided outside the guide arm and the roller.

  In the present invention, the working arm is provided with a crusher as a working machine.

  The crusher can crush and cut the object to be processed (a relatively small object such as a target twig). It becomes the object of suction (for example, blower suction) by a suction machine.

  The branches and leaves in the present invention include tree trunks, branches, leaves, stems, grasses, and the like. Further, the position of the branches and leaves only needs to be within a range where the working arm of the brush cutter reaches, in addition to the roadside. The to-be-processed object means the branches and leaves to be removed before the brushing process. The processed product means the branches and leaves after being cut off.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic front view showing an example of a mobile brush cutter according to the present invention. FIG. 2 is a schematic cross-sectional view showing a state in which the working machine is removed from the working arm of the mobile brush cutter in FIG. 1 and the working arm is turned to change the direction.

  The mobile brush cutter 10 is configured using an arm-mounted truck 12 as a specific example of the vehicle of the present invention.

  The truck 12 includes a loading platform 11, an outrigger 14, a turning post 16, a work arm 18, and an operation seat 20.

  A turning post 16, a work arm 18, and an operation seat 20 are installed on the outrigger 14. The outrigger 14 stably supports the work arm 18 during work.

  The work arm 18 and the operation seat 20 can be turned around the turning post 16. The operator 13 swings or swivels the work arm 18 to change the direction of the operation seat 20 and adjusts the height to direct the work seat 18 to the workpiece.

An example of the allowable weight of the work arm 18 is 800 kg to 900 kg. The height h ₁ from the ground of the operator 13 to perform the operation on the operation seat 20 during operation, for example, 4m. The horizontal distance X from the turning post 16 to the tip of the working machine 21 (specifically, the crusher 26) attached to the tip of the working arm 18 is, for example, 7 to 8 m. Working height h ₂ from the ground of the working machine 21 is, for example, adjustable to any height up to 15 m.

  The truck 12 has a tank 15, a suction machine 17, and a generator 19 on the loading platform 11.

  The tank 15 is an example of means for storing a processed product (branches and leaves after being removed).

  The suction machine 17 sucks the inside of a suction pipe 32 to be described later and guides the processed material into the tank 15. The suction machine 17 is connected to a cyclone 46 through a discharge pipe 44. The cyclone 46 is installed in the upper part of the tank 15 and has a blowout port 48 opened in the tank 15. A suction method in the suction pipe 32 by the suction machine 17 will be briefly described. The suction pipe 32 enters the suction machine 17 (having the same function as the dust collector), and the material (chips) discharged to the discharge pipe 44 is sent to the cyclone 46 and weakened and sent into the tank 15. .

  The generator 19 is used as a power source for a motor (not shown) of the work machine 21 and a motor (not shown) of the suction machine 17. The motor may be a hydraulic type.

  The distal end portion of the work arm 18 is configured as a mounting portion 22 to which the work machine 21 can be mounted by an attachment method. Various working machines 21 can be rotatably mounted on the mounting portion 22 via mounting brackets 24. In the present invention, a crusher 26 is provided as the work machine 21.

  A suction pipe 32 which is an example of a suction unit is provided along the work arm 18. The suction pipe 32 is configured to be bendable and moves with the work arm 18. The tip of the suction pipe 32 extends to the vicinity of the mounting portion 22. The proximal end of the suction pipe 32 communicates with the tank 15. The suction pipe 32 guides the processed material into the tank 15.

  FIG. 3 shows an example of a crusher.

  The crusher 26 has a rotating body 261 and a cover 264 covering the rotating body 261.

  The cover 264 is used to protect the rotating body 261 and temporarily place a processed material.

  The base end portion of the cover 264 is configured as a pipe 266. The pipe 266 is provided so as to be rotatable around its axis with respect to the distal end portion of the work arm 18, that is, the mounting portion 22, via the mounting bracket 24. The processed material is sucked in the direction of arrow V in the figure. The crusher 26 is preferably configured to be rotationally driven by a motor.

  The front end of the cover 264 is configured as an opening 265. An object to be processed such as branches and leaves is guided to the rotating body 261 from the opening 265.

  An intake mechanism 50 is provided near the opening 265 of the cover 264.

  The take-in mechanism 50 includes a guide arm 51 and a roller 52.

  A pair of guide arms 51 is connected to the upper side and the lower side of the cover 264. The proximal end of the guide arm 51 is pivotally connected to the vicinity of the opening 265 of the cover 264. The guide arm 51 has a drive mechanism (not shown) at the base end thereof, and can be driven to turn along the direction of the arrow r1. As the drive mechanism, for example, a drive mechanism used for a revolving door, a gate, or the like can be used.

  By opening the guide arm 51, the opening 265 can be substantially expanded, and by closing the guide arm 51, many branches and leaves can be taken into the opening 265.

  A roller 52 is provided at the tip of the guide arm 51. The axis of the roller 52 is connected to an electric motor (not shown). The electric motor is connected to the generator 19 and can be rotated in the direction of the arrow r2 by the roller 52, for example, at a moderate speed. Since the roller 52 rotates in the direction of the arrow r2, the branches and leaves can be actively taken into the opening 265.

  FIG. 4 shows an AA cross section of FIG.

  The rotating body 261 has a cylindrical portion 262 and a crushing claw 263. The axis of the cylindrical portion 262 is connected to an electric motor (not shown) provided on the cover 264. The electric motor is connected to the generator 19 and rotates the rotating body 261 at a desired speed in the direction of arrow R in FIG. The horsepower number of the electric motor is, for example, about 3.5 HP.

  A plurality of crushing claws 263 are provided on the circumferential surface of the cylindrical portion 262. In the illustrated example, the crushing claws 263 in adjacent rows are arranged in a staggered manner.

  FIG. 5 shows an example of a crushing claw. The crushing claw 263 has a right-angled blade, and crushes the object to be processed mainly by rotational force.

  FIG. 6 shows another example of a crushing claw. The crushing claw 563 has sharp-angled blades on both sides. By using the crushing claw 563, it is possible to crush even a larger branch and to work effectively even when the roller is reversely rotated.

For example, the cover 264 has a width W of about 800 mm and a height h ₃ of 400 mm to 500 mm. The height _{h 4} of the opening 265 is, for example, 300Mm～350mm. The diameter r of the pipe 266 is, for example, 150 mm to 200 mm. The weight of the crusher 26 is, for example, 150 kg.

  FIG. 7 shows another example of a crusher.

  The crusher 66 as the working machine 621 has a rotating body 661 and a cover 664 covering the rotating body 661.

  The cover 664 is for protecting the rotating body 661 and temporarily placing a treatment object.

  The base end portion of the cover 664 is configured as a pipe 666. The pipe 666 is provided so as to be rotatable around its axis with respect to the distal end portion of the work arm 18, that is, the mounting portion 22, via the mounting bracket 24. The processed material is sucked in the direction of arrow V in the figure. The crusher 66 is preferably configured to be rotationally driven by a motor.

  The front end of the cover 664 is configured as an opening 665. An object to be processed such as branches and leaves is guided to the rotating body 661 from the opening 665. The periphery of the cover 664 has a cylindrical shape except for a pipe 266 and an opening 665 which will be described later.

  An intake mechanism 60 is provided in the vicinity of the opening 665 of the cover 664.

  The take-in mechanism 60 has a slide cover 61 and a roller 62 as moving members of the present invention.

  The slide cover 61 is connected to the upper side and the lower side of the cover 664, respectively. The surface on the cover 664 side of the slide cover 61 is formed in an arc surface. The side surface of the slide cover 61 is slidably supported by a guide (not shown). The slide cover 61 can move along the cover 664. The slide cover 61 has a drive mechanism (not shown) at the base end thereof, and can be turned back in the direction of the arrow r1. As the drive mechanism, for example, a drive mechanism used for a sliding door, a shutter, or the like can be used.

  A roller 62 is provided at the tip of the slide cover 61. The axis of the roller 62 is connected to an electric motor (not shown). The electric motor is connected to the generator 19 and can rotate the roller 62 in the direction of the arrow r2 at a desired speed. Since the roller 62 rotates in the direction of the arrow r2, the branches and leaves can be positively taken into the opening 665.

  FIG. 8 shows a state in which the slide cover of the take-in mechanism of FIG. 7 is moved to close the opening. When the opening 665 is substantially closed, the processed material taken into the crusher 66 can be prevented from being scattered. Moreover, it is possible to prevent the crushing claws 263 described later from being scattered.

  FIG. 9 shows still another example of the crusher.

  The crusher 76 as the working machine 721 has a rotating body 261 and a cover 264 covering the rotating body 261. In addition, the same code | symbol is attached | subjected to the member same as the member shown in FIG. 3, and the description is abbreviate | omitted.

  An intake mechanism 70 is provided near the opening 265 of the cover 264.

  The take-in mechanism 70 includes a guide arm 51 and a roller 52.

  A swivel cover 751 is provided outside the guide arm 51 and the roller 52. The swivel cover 751 is formed of a flat thick plate, and its base end is fixed to the vicinity of the opening 265 of the cover 764 so as to be swivelable. The swivel cover 751 can swivel together with the guide arm 51. The swivel cover 751 can prevent the branches and leaves and the crushing claws 263 taken into the crusher 76 from scattering by any chance.

  In addition, this invention is not limited to the above-mentioned Example. The size and arrangement method of the crushing claws are arbitrary. The configuration of the capturing mechanism is not limited to the illustrated one.

It is a schematic front view which shows an example of the mobile brush cutter by this invention. It is a schematic cross-sectional view which shows the state which removed the working machine (crusher) from the working arm of the mobile brush cutter of FIG. 1, and rotated the working arm and changed direction. An example of a crusher is shown. The AA cross section of FIG. 3 is shown. An example of a crushing claw is shown. Another example of a crushing nail is shown. Another example of a crusher is shown. FIG. 8 shows a state in which the slide cover of the take-in mechanism in FIG. 7 is moved to close the opening. Another example of a crusher is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Mobile brush cutter 12 Truck 13 Worker 14 Outrigger 15 Tank 16 Turning post 17 Suction machine 18 Work arm 19 Generator 20 Operation seat 21, 621, 721 Work machine 22 Mounting part 24 Mounting bracket 26, 66, 76 Crusher 32 Suction pipe 44 Discharge pipe 46 Cyclone 50, 60, 70 Take-in mechanism 51 Guide arm 52, 62 Roller 61 Slide cover (moving member)
261, 661 Rotating body 262, 662 Cylinder part 263, 563, 663 Crushing claw 264, 664, 764 Cover 265, 665 Opening part 266, 666 Pipe 751 Rotating cover

Claims (8)

  A movable vehicle (12), a work arm (18) disposed on the vehicle (12) so that its orientation can be changed in a predetermined direction and its height can be adjusted, and a work arm (18) are provided. Provided with a suction means (32) and a crusher (26) provided at the tip of the working arm (18) for crushing the branches and leaves, and suctioning the branches and leaves crushed by the crusher (26) ( 32) A mobile brush cutter, characterized in that a take-in mechanism (50, 60, 70) for taking in to 32) is provided at the inlet of the suction means (32).   The take-in mechanism (50, 60) has rollers (52, 62) for guiding the branches and leaves, and the branches and leaves are guided by the rollers (52, 62) to open the openings of the take-in mechanism (50, 60) ( 265, 665).   3. The roller (52, 62) is connected to an electric motor, and the branches and leaves are automatically taken into the opening (265, 665) by the rotation of the roller (52, 62). The described mobile brush cutter.   The take-in mechanism (50) has a guide arm (51), and the guide arm (51) is pivotally connected in the vicinity of the opening (265) of the crusher (26), and the guide arm (51) turns. The mobile brush cutter according to any one of claims 1 to 3, wherein the branches and leaves are guided to the opening (265).   The crusher (26) has a cover (664), and the take-in mechanism (60) has a moving member (61) movable along the cover (664). 5. The mobile brush cutter according to claim 1, wherein the opening (665) of the cover (664) is configured to be openable and closable.   The crusher (26) has a crushing claw (263) for crushing branches and leaves, and a part of the crushing claw (263) is formed as a blade with an acute angle. The mobile brush cutter according to any one of the above.   7. The mobile brush cutter according to claim 6, wherein the crushing claw (263) is formed in a double-edged shape. The take-in mechanism (70) has a swivel cover (751), and the swivel cover (751) is pivotally connected near the opening (265) of the crusher (26), and the swivel cover (751) swivels. The mobile brush cutter according to any one of claims 1 to 3, wherein the branches and leaves are guided to the opening (265).

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