JP2015073437A - Scatter prevention device, work vehicle including the same, and scatter prevention method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scatter prevention device moving together with a work vehicle without loads on a plurality of workers to prevent scatter of stones, plants, or the like even if a range for preventing the scatter of the stones, the plants, or the like is very wide, when performing mowing/cutting work of weeds, useless small trees, or the like by the work vehicle such as a hydraulic shovel, to provide the work vehicle including the scatter prevention device, and to provide a scatter prevention method.SOLUTION: A fence support 61 is attached to a side of a lower traveling body 2 of a hydraulic shovel 1 mounted with a mower to an upper turn structure 3 turnably installed on the lower traveling body 2, and the fence support 61 is made to support a protective fence 62.

Description

  The present invention relates to a scatter prevention device for preventing scattering of scattered objects such as stones and vegetation when cutting a weed or a weed tree by a work vehicle, a work vehicle including the same, and a scatter prevention method.

  A hydraulic excavator equipped with a mower attachment is used for cutting weeds and weeds on roadside slopes on expressways and ordinary roads. Also, during the work, a scattering prevention net is used to prevent scattering of scattered objects such as stones and vegetation, but this scattering prevention net needs to cover a wide range beyond the working range of the hydraulic excavator. It has become a big thing. Therefore, conventionally, the scattering prevention net is held by a plurality of workers other than the operator of the work vehicle and moves together with the movement of the excavator.

  In addition, for example, in Patent Document 1, a net is attached to the inside of a frame using a lightweight metal, and a handle is attached so that it can be carried. A scattering prevention net that is fixed to a suspended frame and capable of supporting itself is described. It is also possible to connect a plurality of units, or connect to a vehicle or the like to move for each vehicle, using L-shaped connecting pins and connecting rings provided before and after the drive unit.

Registered Utility Model No. 3107649

  As mentioned above, when weaving weeds and trees with a hydraulic excavator, multiple workers must have a very large scattering prevention net in their hands and must move along with the movement of the hydraulic excavator. Cost. In addition, the scattering prevention net described in Patent Document 1 can be self-supporting and can be driven by the wheels provided on the frame body, but when the scattering prevention net is large, the balance becomes poor and the self-supporting is not possible. Not only will it be difficult, but there is also the risk of falling out of balance while running on wheels.

  Therefore, in the present invention, when performing cutting work such as weeds and weeds with a work vehicle such as a hydraulic excavator, even if the range for preventing scattering of scattered objects such as stones and vegetation is very wide, a plurality of It is an object of the present invention to provide a scattering prevention device that can move together with a work vehicle without burden on the operator and prevent scattering of scattered objects, a work vehicle equipped with the same, and a scattering prevention method.

  The anti-scattering device of the present invention includes a fence support attached to a side of a lower traveling body of a work vehicle in which a mower is mounted on an upper revolving body that is installed so as to be able to turn on the lower traveling body, and is supported by the fence support. A protective fence.

  Further, the scattering prevention method of the present invention is a scattering prevention method for preventing scattering of scattered objects during a cutting operation by a work vehicle in which a mowing machine is mounted on an upper turning body installed to be capable of turning on a lower traveling body. The fence support is attached to the side of the lower traveling body, and the fence support is made to support the protective fence.

  According to the scattering prevention device and the scattering prevention method of the present invention, since the protective fence is supported by the fence support on the side of the lower traveling body of the work vehicle, the protective fence moves together with the work vehicle. That is, according to the scattering prevention device and the scattering prevention method of the present invention, it is possible to turn the upper revolving body of the work vehicle and work with the mower while moving the protective fence together with the work vehicle.

  Here, it is desirable that the protective fence is formed by inclining both ends in the horizontal direction toward the work vehicle. As a result, when scattered objects such as stones and vegetation that have been bounced off by the mower of the work vehicle hit the inclined portion of the protective fence, they are bounced back to the work vehicle.

(1) A fence support attached to a side of a lower traveling body of a work vehicle in which a mower is mounted on an upper revolving body installed on the lower traveling body so as to be capable of turning; and a protective fence supported by the fence support; It is possible to turn the upper revolving body of the work vehicle and work with the mower while moving the protective fence together with the work vehicle, and without the burden of multiple workers other than the operator of the work vehicle, It is possible to prevent a wide range of scattering.

(2) Since the protective fence is formed by inclining both ends in the horizontal direction toward the work vehicle side, the scattered objects such as stones and vegetation that are bounced off by the mower of the work vehicle are inclined to the protective fence. When it hits the part, it comes to be bounced back to the work vehicle side, and it becomes possible to suppress the scattered matter within a narrower range.

It is a figure which shows the work vehicle provided with the scattering prevention apparatus in embodiment of this invention, Comprising: (a) is a top view, (b) is a front view. It is an enlarged view around the fence support of the scattering prevention apparatus of FIG. 1, (a) is a top view, (b) is a front view. It is a figure which shows the detail of a support bracket, Comprising: (a) is a top view, (b) is a front view, (c) is a left view. It is a figure which shows the detail of a support arm, Comprising: (a) is a top view, (b) is a front view, (c) is a left view. It is a figure which shows the detail of a 1st fence, Comprising: (a) is a front view, (b) is a right view. It is a figure which shows the work vehicle provided with the scattering prevention apparatus which shows another embodiment of this invention, Comprising: (a) is a top view, (b) is a front view, (c) is AA sectional drawing. It is a figure which shows the detail of a support bracket, Comprising: (a) is a top view, (b) is a front view, (c) is a left view. It is a figure which shows the detail of a support arm, Comprising: (a) is a top view, (b) is a front view, (c) is a right view, (d) is a left view. It is a figure which shows the detail of a support arm, Comprising: (a) is a top view, (b) is a front view, (c) is a right view.

  FIG. 1 is a view showing a work vehicle provided with a scattering prevention device according to an embodiment of the present invention, wherein (a) is a plan view and (b) is a front view.

  As shown in FIG. 1, a hydraulic excavator 1 as a work vehicle according to an embodiment of the present invention has an upper swing body 3 installed on a lower traveling body 2, and an anti-scattering device 10 on the side of the lower traveling body 2. It is provided. The lower traveling body 2 moves the hydraulic excavator 1 forward and backward by rotating a crawler belt (infinite track) 4 wound around both left and right end portions in the traveling direction. The upper turning body 3 is mounted on the upper surface of the lower traveling body 2 and can turn in any direction with respect to the lower traveling body 2.

  The upper swing body 3 includes a swivel base 5, a work implement 6, a vehicle body portion 7, a cab 8, and the like. The work machine 6 includes a boom 6a, an arm 6b attached to the tip of the boom 6a, and a mower 6c attached to the tip of the arm 6b. The work machine 6 performs cutting work such as weeds and trees while moving the boom 6a, the arm 6b, the mowing machine 6c, and the like up and down by the hydraulic cylinders 9a, 9b, and 9c.

  The vehicle body section 7 includes an engine room that houses an engine and the like, an equipment room that houses a fuel tank, a hydraulic oil tank, an operation valve, and the like. The cab 8 is a cab where an operator of the hydraulic excavator 1 gets on and off, and is disposed at a position where the tip of the work machine 6 can be seen.

  The scattering prevention device 10 has a fence support 11 attached to the side of the lower traveling body 2 and a protective fence 12 supported by the fence support 11. 2A and 2B are enlarged views around the fence support 11 of the scattering prevention device 10 of FIG. 1, wherein FIG. 2A is a plan view and FIG. 2B is a front view.

  The fence support 11 includes support brackets 13 and 15 fixed to the side cover 20 of the lower traveling body 2, support arms 14 and 16 fixed to the support brackets 13 and 15, respectively. In the hydraulic excavator 1 according to the present embodiment, the side cover 20 is provided with a step 21 for getting on and off when the operator gets on and off the cab 8, and the support brackets 13 and 15 are provided on the side plate 20 via the base plate 17. 21 is fixed.

  3A and 3B are diagrams showing details of the support bracket 13, wherein FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a left side view. 4A and 4B are diagrams showing details of the support arm 14, wherein FIG. 4A is a plan view, FIG. 4B is a front view, and FIG. 4C is a left side view. Since the support bracket 15 and the support arm 16 are symmetrical with the support bracket 13 and the support arm 14, respectively, illustration and detailed description thereof are omitted.

  As shown in FIG. 3, the support bracket 13 includes an attachment part 30 for fixing to the base plate 17, a bracket body part 31 formed by a square pipe, a fence fixing part 32 to which the protective fence 12 is fixed, and a support An arm fixing portion 33 to which the arm 14 is fixed. The attachment part 30, the bracket main body part 31, the fence fixing part 32, and the arm fixing part 33 are made of steel and are integrated by welding. The mounting portion 30 is provided with a bolt hole 34 for fixing to the base plate 17 with a bolt (not shown). The fence fixing portion 32 is provided with a bolt hole 35 for fixing the protective fence 12 with a bolt (not shown). The arm fixing portion 33 is provided with a bolt hole 36 for fixing the support arm 14 with a bolt (not shown).

  As shown in FIG. 4, the support arm 14 includes a mounting portion 40 for fixing to the arm fixing portion 33 of the support bracket 13, an arm main body portion 41 formed by a square pipe, and a fence to which the protective fence 12 is fixed. And a fixing portion 42. The attachment part 40, the arm main body part 41, and the fence fixing part 42 are made of steel and are integrated by welding. The mounting portion 40 is provided with a bolt hole 43 for fixing with a bolt (not shown) together with the bolt hole 36 of the arm fixing portion 33 of the support bracket 13. The fence fixing portion 42 is provided with a bolt hole 44 for fixing the protective fence 12 with a bolt (not shown).

  The protective fence 12 is divided, and includes a first fence 12a supported by the support bracket 13, a second fence 12b supported by the support arm 14, and a third fence 12c supported by the support bracket 15. The fourth fence 12d is supported by the support arm 16, the fifth fence 12e is supported outside the second fence 12b, and the sixth fence 12f is supported outside the fourth fence 12d. In addition, the 1st-6th fences 12a-12f are fixed with the volt | bolt etc. which are not shown mutually.

  5A and 5B are diagrams showing details of the first fence 12a, where FIG. 5A is a front view and FIG. 5B is a right side view. As shown in FIG. 5, the 1st fence 12a provided the net member 51 in the outer frame member 50 formed in the rectangular shape. In addition, a reinforcing member 52 extending in the horizontal direction is provided at the lower portion of the outer frame member 50. An attachment member 53 for fixing to the fence fixing portion 32 of the support bracket 13 is provided between the reinforcing member 52 and the lower frame member 50a of the outer frame member 50. The attachment member 53 is provided with a bolt hole 54 for fixing with a bolt (not shown) together with the bolt hole 35 of the fence fixing portion 32.

  In addition, about the 2nd fence 12b, the 3rd fence 12c, and the 4th fence 12d, although the detailed description is abbreviate | omitted by the structure similar to the 1st fence 12a, each attachment member 53 is each fence 12b-12d. Is disposed at a position corresponding to the position of the fence fixing portions 32 and 42 to which is fixed. Further, the reinforcing member 52 and the attachment member 53 are omitted for the fifth fence 12e and the sixth fence 12f. Further, as shown in FIG. 1A, the fifth fence 12e and the sixth fence 12f are each a second fence 12b so that both ends in the horizontal direction of the protective fence 12 are inclined toward the hydraulic excavator 1 side. And it fixes to the 4th fence 12d diagonally.

  In the hydraulic excavator 1 having the above configuration, the protective fence 12 is supported by the fence support 11 on the side of the lower traveling body 2, and thus the protective fence 12 moves together with the hydraulic excavator 1. That is, in this hydraulic excavator 1, it is possible to work by the mower 6c by turning the upper swing body 3 while moving the protective fence 12 together with the hydraulic excavator 1, and a plurality of operators other than the operator of the hydraulic excavator 1 can operate. It is possible to prevent the scattering of stones and vegetation over a wide range without burden on the operator.

  Further, in the protective fence 12 in the present embodiment, the fifth fence 12e and the sixth fence 12f at both ends in the horizontal direction are inclined toward the excavator 1 side, so that the bouncing is performed by the mower 6c of the excavator 1. When the scattered objects such as stones and vegetation hit the inclined portion of the fifth fence 12e or the sixth fence 12f, they are bounced back to the excavator 1 side, and the scattered objects can be suppressed within a narrower range.

  In addition, in the said embodiment, although the fence support 11 is being fixed to the step 21 for boarding / alighting of the side cover 20 of the lower traveling body 2, you may fix to another site | part of the side of the lower traveling body 2. . Moreover, it is also possible to employ | adopt the shape and attachment structure other than having demonstrated in the said embodiment also about the fence support tool 11 and the protection fence 12. FIG.

  Next, a more preferred embodiment of the scattering prevention device of the present invention will be described. 6A and 6B are diagrams showing a work vehicle including a scattering prevention device according to another embodiment of the present invention, wherein FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. It is. In the following description, components that are the same as those described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  A scattering prevention device 60 shown in FIG. 6 includes a fence support 61 attached to the side of the lower traveling body 2 and a protective fence 62 supported by the fence support 61. The fence support 61 is fixed between the brackets 63 and 65, the support brackets 63 and 65 fixed to the side cover 20 of the lower traveling body 2, the support arms 64 and 66 fixed to the support brackets 63 and 65, respectively. Support arm 67 and the like. Each of the support arms 64 and 66 is of a split type, and includes support arms 64a and 64b and support arms 66a and 66b.

  7A and 7B are diagrams showing details of the support bracket 63, where FIG. 7A is a plan view, FIG. 7B is a front view, and FIG. 7C is a left side view. FIG. 8 is a diagram showing details of the support arm 64a, where (a) is a plan view, (b) is a front view, (c) is a right side view, and (d) is a left side view. FIG. 9 is a diagram showing details of the support arm 64b, in which (a) is a plan view, (b) is a front view, and (c) is a right side view. Since the support bracket 65 and the support arms 66a and 66b are symmetrical with the support bracket 63 and the support arms 64a and 64b, respectively, illustration and detailed description thereof are omitted.

  As shown in FIG. 7, the support bracket 63 includes an attachment portion 70 for fixing to the base plate 17, a bracket body portion 71 formed by a square pipe, an arm fixing portion 72 to which the support arm 64 a is fixed, and a support And an arm fixing portion 73 to which the arm 67 is fixed. The attachment portion 70, the bracket main body portion 71, and the arm fixing portions 72 and 73 are made of steel and are integrated by welding. The mounting portion 70 is provided with a bolt hole 74 for fixing to the base plate 17 with a bolt (not shown). Similarly, bolt holes 75 and 76 for fixing the support arms 64a and 67 with bolts (not shown) are also provided in the arm fixing portions 72 and 73, respectively.

  As shown in FIG. 8, the support arm 64a includes an attachment portion 80 for fixing to the arm fixing portion 72 of the support bracket 63, an arm main body portion 81 formed by a square pipe, and an arm to which the support arm 64b is fixed. It has the fixing | fixed part 82 and the fence fixing | fixed part 83 to which the protective fence 62 is fixed. The attachment portion 80, the arm main body portion 81, the arm fixing portion 82, and the fence fixing portion 83 are made of steel and are integrated by welding. The mounting portion 80 is provided with a bolt hole 84 for fixing with a bolt (not shown) together with the bolt hole 75 of the arm fixing portion 72 of the support bracket 63. The arm fixing portion 82 is provided with a bolt hole 85 for fixing the support arm 64b with a bolt (not shown). The fence fixing portion 83 is provided with a bolt hole 86 for fixing the protective fence with a bolt (not shown).

  As shown in FIG. 9, the support arm 64b includes a mounting portion 90 for fixing to the arm fixing portion 82 of the support arm 64a, an arm main body portion 91 formed by a square pipe, and a fence to which the protective fence 62 is fixed. And a fixing portion 92. The attachment portion 90, the arm main body portion 91, and the fence fixing portion 92 are made of steel and are integrated by welding. The mounting portion 90 is provided with a bolt hole 93 for fixing with a bolt (not shown) together with the bolt hole 85 of the arm fixing portion 82 of the support arm 64a. The fence fixing portion 92 is provided with a bolt hole 94 for fixing the protective fence with a bolt (not shown). A similar fence fixing portion 96 is also provided at an intermediate portion of the support arm 67 fixed between the brackets 63 and 65.

  The protective fence 62 is a divided type of a first fence 62a to a sixth fence 62f, and is connected to each other by bolts or the like (not shown). Further, the fence fixing portions 83, 92, 96, etc. of the support arms 64a, 64b, 66a, 66b, 67 are located at the connecting portions of the fences 62a-62f, and the fence fixing portions 83, 92, 96, etc. 62a to 62f are fixed together two by two. In addition, attachment portions 87 and 95 for fixing the support arms 94 that support up to the middle portions of the fences 62a to 62f in the vertical direction are provided on the support arms 64a and 64b, respectively.

  In the scattering prevention device 60 configured as described above, all of the first fence 62a to the sixth fence 62f are fixed to the support arms 64a, 64b, 66a, 66b, and 67 at the connecting portions of the fences 62a to 62f, and the support bracket 63, 65 can be supported by the side cover 20 of the lower traveling body 2, so that the split type protective fence 62 is firmly fixed to the lower traveling body 2. Further, since the support arms 94 support up to the middle part of each fence 62a to 62f in the vertical direction on the support arms 64a, 64b, 66a, 66b, it is possible to prevent the protective fence 62 from shaking.

  INDUSTRIAL APPLICABILITY The anti-scattering device, the work vehicle including the anti-scattering device, and the anti-scattering method of the present invention are useful for preventing the scattering of stones, vegetation, and the like during the cutting of weeds and miscellaneous trees.

DESCRIPTION OF SYMBOLS 1 Hydraulic excavator 2 Lower traveling body 3 Upper turning body 4 Crawler track (infinite track)
DESCRIPTION OF SYMBOLS 5 Turntable 6 Working machine 6a Boom 6b Arm 6c Mowing machine 7 Car body part 8 Cab 10,60 Scatter prevention device 11,61 Fence support 12,62 Protective fence 20, Side cover 21 Step for getting on and off

Claims (4)

A fence support attached to a side of the lower traveling body of a work vehicle in which a mower is mounted on an upper revolving body that is turnably installed on the lower traveling body;
An anti-scattering device having a protective fence supported by the fence support.   The scattering prevention device according to claim 1, wherein the protective fence has both horizontal ends inclined toward the work vehicle. A work vehicle in which a mower is mounted on an upper turning body that is installed on the lower traveling body so as to be capable of turning,
A fence support attached to the side of the lower traveling body;
A work vehicle having a protective fence supported by the fence support. A scattering prevention method for preventing scattering of scattered objects at the time of mowing work by a work vehicle in which a mowing machine is mounted on an upper turning body that is turnably installed on a lower traveling body,
A method for preventing scattering, wherein a fence support is attached to a side of the lower traveling body, and the fence support is supported by the fence support.

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