JP2009287278A - Earth removal-cum-raking device mountable on earth removing blade of backhoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earth removal-cum-raking device mountable on an earth removing blade of a backhoe, which dispenses with additional provision of a rake dozer, is mountable to the blade without working on the blade when mounted, eliminates a complicated structure of the blade, is free from drop out, breakage, or the like of the device due to resistance etc. during execution of work, and can instantaneously switch a working mode. <P>SOLUTION: According to the structure of the earth removal-cum-raking device, a bottom board 10 is mounted between lower edges of right and left lateral side boards 30, and a front board 20 is mounted between lower-half front edges of the right and left lateral side boards 30, respectively. The bottom board 10 has a number of rake main bodies 11 vertically mounted thereon, and the front board 20 has a proximal end of an earth removing auxiliary board 40 pivotally supported on the upper edge of the front board. When the earth removing auxiliary board 40 is turned downward to assume a vertical position and the device is set in an earth removing mode, the lower edge of the earth removing auxiliary board 40 is located at least below the lower edge of the rake body 11. Further when the earth removing auxiliary board 40 is turned upward about a pivot portion 50, the device is in a mode in which raking work is carried out by the rake body 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a soil removal and rake device that can be attached to a soil removal board of a backhoe.

  During construction such as road construction, repair of existing roads, and parking lot construction, roads and parking lots are constructed by stacking layers of a certain height until a desired height is formed. At this time, each layer to be formed is laminated by performing an operation of rolling the ground and improving adhesion to the next layer by damaging the pressed ground, that is, a rake operation.

  Conventionally, when performing rake work, a special bulldozer called a rake dozer is used, but the price of the rake dozer is high. Also, the use of rental machines for rake dozers is cumbersome and cumbersome because of the small number and the need to arrange them.

  In addition, a series of operations in which a rake dozer is separately transported to the construction site for rake work, and then transported out of the construction site again after the rake work is costly. Since it emits carbon, it is not good for the global environment.

  Therefore, the demand for easy rake work by attaching a rake device to the excavation board of highly versatile construction machines such as backhoes frequently used at construction sites is a cost reduction and global environment protection. It is increasing year by year from the viewpoint.

  On the other hand, there has already been disclosed a soil discharging plate which is configured so that the soil discharging plate is processed and attached with a rake so that the soil discharging plate has a rake function (see, for example, Patent Document 1).

  The technique disclosed in Patent Document 1 performs the rake function by suspending the rake downward when used, and by rotating and storing the rake upward around the pivot at the upper end of the rake during the soil removal work. It is configured to fulfill.

  Moreover, since the technique disclosed in Patent Document 1 must be processed in advance on the earth discharging plate and the rake device must be attached, the structure of the earth discharging plate is complicated, and the rake storage and working mode are also different. Since it becomes complicated and the structure becomes complicated as a whole, the strength may be inferior. Furthermore, since the rake folding structure is attached to the earth discharging surface of the earth discharging plate, the rake folding structure may be damaged by the earth pressure due to the earth discharging work, so that the rake work can be performed smoothly. Rake assembly work could not be performed.

  Because of such a structure, the technique disclosed in Patent Document 1 is not effectively utilized.

  Therefore, a detachable apparatus that is configured to be mounted on a soil removal board of a construction machine such as a backhoe and that can be mounted without processing the soil discharge board is disclosed (for example, Patent Document 2). reference).

However, Patent Document 2 does not disclose a soil removal and rake device that can be attached to a soil removal plate of a detachable backhoe that can also perform a rake operation. In addition, the detachment structure between the earth removal plate of the construction machine to be attached and the detachable device has different parts. Furthermore, the original function of the earth removing plate is difficult to be achieved once the device is mounted on the earth removing plate unless the device is removed.
Japanese Utility Model Publication No. 58-29646 Japanese Patent No. 2942955

  For this reason, when performing rake work, a special bulldozer called a rake dozer is used, but the price of the rake dozer is high. Furthermore, the use of a rental machine for a rake dozer has a drawback that it is troublesome and troublesome since the number of the rental machines is small and it is necessary to arrange the rental machine.

  In addition, a series of operations in which a rake dozer is separately transported to the construction site for rake work, and then transported out of the construction site again after the rake work is overly costly. Since it emits carbon, it has a disadvantage that is not good for the global environment.

  The technique disclosed in Patent Document 1 has a drawback in that the structure of the earth discharging plate is complicated because it is necessary to perform processing on the earth discharging plate when attaching the rake.

  Moreover, since the technique disclosed in Patent Document 1 needs to perform processing on the earth discharging board when attaching a rake, a highly versatile construction machine has become mainstream at the current construction site. In the case of a rental machine, there is a drawback that it is difficult to mount the rake on a soil removal board of a construction machine such as a backhoe because it cannot be processed without permission.

  Furthermore, the technique disclosed in Patent Document 1 also complicates rake storage and work forms, and the overall structure is complicated, so that the strength is inferior. Since the rake folding structure is attached to the rake, there is a risk that the rake folding structure may be damaged by the earth pressure due to the earth removal work, and the rake assembly work cannot be performed smoothly when performing the rake work. It was.

  The device that can be mounted on the existing construction machine's earth discharge plate disclosed in Patent Document 2 can be attached to the existing construction machine's earth removal board without processing or the like. Although the cost and other costs can be reduced, the structure for detaching the construction machine from the earth plate disclosed in Patent Document 2 has the effect that the device falls off or breaks due to the influence of resistance and vibration received from the soil. There was a risk of doing so.

  Furthermore, the device mounted on the earth discharging plate of the construction machine with the detaching structure disclosed in the above-mentioned Patent Document 2 is once attached to the earth discharging plate of the construction machine. However, there is a drawback that the earth removal work cannot be performed or the efficiency of the earth removal work is lowered.

  In other words, the device mounted on the soil removal board of the construction machine with the detachable structure disclosed in Patent Document 2 cannot instantaneously switch between the normal function of the soil removal board and the special function of the device attached to the soil removal board. There were drawbacks.

  Therefore, the present invention lays a bottom plate between the lower edge portions of the left and right lateral side plates and a front side plate between the lower half front end edges of the left and right lateral side plates. When the base edge of the earth removal auxiliary plate is pivotally supported on the upper edge of the side plate, and the earth removal auxiliary plate is rotated downward to be in the suspended state, the lower edge of the earth removal auxiliary plate is The rake body is configured to be positioned at least below the lower end of the rake body, and in addition, the rake work by the rake body can be performed in a state where the earth removal auxiliary plate is rotated upward about the pivotal support. It is an object of the present invention to provide a soil removal and rake device that can be attached to a soil discharge plate of a characteristic backhoe.

  Further, the present invention is characterized in that bolt insertion holes are formed in the upper portions of the left and right lateral side plates so as to be attached to the side plates of the backhoe earth removal plate via bolts.

  Furthermore, a fixing means is provided in the vicinity of the upper front edge of the left and right side plates for fixing the earth removal auxiliary plate to the left and right side plates by rotating upward about the pivotal support. Have

  According to the first aspect of the present invention, a bottom plate is installed between the lower edge portions of the left and right lateral side plates, and a front plate is installed between the lower half front end edges of the left and right lateral side plates. If the base end edge of the earth removal auxiliary plate is pivotally supported on the upper edge of the front side plate, and the earth removal auxiliary plate is rotated downward to form the earth removal work form, The lower end edge of the plate is configured to be positioned at least below the lower end of the rake body. Furthermore, in the state where the earth removal auxiliary plate is pivoted upward about the pivotal support portion, the rake operation by the rake body can be performed. Because of the configuration, it is necessary to procure a rake dozer separately by attaching a soil removal and rake device (hereinafter referred to as a soil removal and rake device) that can be attached to the backhoe's soil removal plate to the construction machine's soil removal plate. Is effective in reducing expenses and protecting the global environment. There is also that effect. In addition, when attaching the soil removal and rake device, there is no need to process the soil removal plate, so there is an effect that the structure of the soil removal plate does not become complicated, and regardless of the ownership of the construction machine, There is an effect that it can be easily mounted on the earth discharging plate of the construction machine. In addition, the storage and work form of the rake is simplified, and the overall structure is simple, so there is an effect that is not inferior in strength. When performing the work, the soil removal and rake device can be assembled smoothly. effective. In addition, since the configuration of the soil removal and rake device itself constitutes the partition space by each plate as described above, by storing the soil discharge plate in the partition space, the soil removal and rake device and the soil discharge plate Can be tightly integrated with each other, so that when performing rake work or earth removal work, there is an effect that the earth removal and rake device does not fall off or break due to resistance such as earth pressure or vibration. Furthermore, as described above, the earth removal assisting plate freely pivots upward or downward about the pivot, so that the rake work or the earth removal work can be instantaneously switched, and the rake work or earth removal can be efficiently performed. There is an effect to work. Further, since the lower end edge of the soil removal auxiliary plate is positioned at least below the lower end of the rake body, there is an effect that there is no possibility of interference with the rake body when performing the soil removal operation.

  According to the second aspect of the present invention, since the bolt insertion hole for attaching to the side plate of the backhoe's earth removing plate via the bolt is formed in the upper part of the left and right lateral side plates, the side plate of the backhoe's earth discharging plate is provided. The formed wire engaging hole for lifting the existing earthing board is matched with the bolt insertion hole, and the bolt can be inserted to fix the earthing / rake device and the backhoe earthing board. . Therefore, there is an effect that the soil removal and rake device can be more easily attached to and detached from the soil removal plate of the backhoe.

  According to the third aspect of the present invention, in the vicinity of the upper front end edge of the left and right lateral plates, the fixing means for rotating the earth removal assisting plate upward about the pivotal support and fixing it to the left and right lateral plates. Because the earth removal auxiliary plate does not fall forward due to resistance, such as earth pressure received from the soil when performing rake work, or vibration, the rake work can be performed more reliably. There is.

  In the present invention, the bottom plate is installed between the lower edges of the left and right lateral plates, the front plate is installed between the lower half front end edges of the left and right lateral plates, and a large number of rake bodies are suspended from the bottom plate. When the base edge of the earth removal auxiliary plate is pivotally supported at the upper edge, and the earth removal auxiliary plate is rotated downward to be suspended, the earth removal work plate is used as the lower edge. It is configured to be positioned at least below the lower end of the slab. Further, the rake work by the rake body can be performed in a state where the earth removal assisting plate is rotated upward about the pivotal support.

  Further, bolt insertion holes are formed in the upper portions of the left and right lateral side plates to be attached to the side plates of the backhoe earth removal plate via bolts.

  Further, a fixing means is provided in the vicinity of the upper front edge of the left and right lateral side plates for rotating the earth removal auxiliary plate about the pivotal support so as to be fixed to the left and right lateral side plates.

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

  1 is a right side view showing a backhoe B equipped with a soil removal and rake device A, FIG. 2 is a perspective view showing the soil removal and rake device A and a soil discharge plate C, and FIG. 3 is a soil removal and rake. FIG. 4 is an enlarged view showing the right side surface of the apparatus A attached to the earth discharging plate C, FIG. 4 is a front view showing the earth discharging / rake apparatus A, and FIG. 5 shows the earth discharging / rake apparatus A as the earth discharging plate C. It is the schematic diagram which showed the procedure at the time of attaching to.

  As shown in FIG. 1, B shows a backhoe equipped with the soil discharge and rake device A of the present invention. A crawler 62 is provided at the lower part of the machine frame 61, and a turntable is provided at the upper part of the machine frame 61. A base 64 is mounted via 63, and a driver seat 65 and a canopy 65 a are provided on the base 64, and a substantially boom-shaped base boom 71 is connected to the front end of the base 64 via a connecting bracket 66. It is connected continuously so that it can rotate up and down.

  A tip boom 72 is pivotally supported at the tip of the base boom 71, and a bucket 74 is pivotally connected to the tip via a link mechanism 73. 71a is a base hydraulic cylinder for rotating the base boom 71 up and down. 72a is a front end hydraulic cylinder for rotating the front end boom 72 up and down. 74a denotes a bucket hydraulic cylinder for rotating the bucket 74 up and down.

  In addition, a soil discharge plate C projects from the front end of the machine casing 61 below the base boom 71 via an arm 82. Reference numeral 83 denotes a soil discharge hydraulic cylinder for driving the arm 82 to be pivotable up and down around the pivotal support portion 81 at the base end of the arm 82.

  As shown in FIGS. 2 and 3, the earth removing plate C is constituted by an earth removing face plate 85 and side plates 86 on the left and right side portions thereof. The earth removal face plate 85 is formed in a semicircular cross section, and moves the excavated soil, embankment and the like in a predetermined direction as the backhoe B advances, and at the lower end edge of the earth removal face plate 85, The flat work can be done. Side plates 86 are provided on the left and right side portions of the soil discharge surface plate 85. Therefore, the soil discharge surface plate 85 and the left and right side plates 86 form a fixed volume of the soil discharge space 87, and the soil discharge space 87 is constant. It is configured so that a large amount of soil can be removed.

  A feature of the embodiment of the present invention resides in that the soil removal and rake device A is mounted on the soil discharge plate C. As shown in FIG. 2, the partition space of the soil removal and rake device A has a bottom plate 10 formed to have substantially the same length as the width of the soil discharge plate C, and a length substantially equal to the width of the soil discharge plate C. A front plate 20 erected at a substantially right angle to a front end edge of the bottom plate 10, a left and right lateral plate 30 that is connected to the left and right side edges of the bottom plate 10 and the left and right edges of the front plate 20, and an upper end edge of the front plate 20 It is comprised from the earth removal auxiliary | assistant board 40 pivotally attached so that vertical rotation was possible.

  With such a configuration, the soil removal and rake apparatus A has a simple structure and is not inferior in strength, and it is not necessary to perform processing on the soil discharge plate C. The assembly work of the device A can be performed smoothly, and it is not necessary to consider the ownership of the construction machine to which the soil removal and rake device A is attached.

  Furthermore, since the soil removal and rake device A forms a partition space by the bottom plate 10, the front side plate 20, and the left and right lateral side plates 30, the soil removal plate C can be surrounded. Accordingly, since the soil removal and rake device A is securely attached to the soil discharge plate C, the soil removal and rake device A is affected by the influence of resistance such as earth pressure and vibration when performing the rake work and the soil removal work. There is no risk of dropout or damage.

  As shown in FIG. 3 and FIG. 4, 51 is a pivot that pivotally attaches the front side plate 20 and the soil removal auxiliary plate 40. Reference numeral 21 denotes a front plate pivot bearing boss projecting from the upper edge of the front plate 20. 41 is a soil discharge auxiliary plate pivot boss protruding from the base edge of the soil discharge auxiliary plate 40, and when the front plate pivot bearing boss 21 and the soil discharge auxiliary plate pivot bearing boss 41 are connected by the pivot 51. It is in a state of being alternately engaged.

  Therefore, since the earth removal auxiliary | assistant board 40 freely rotates up and down, a rake operation and an earth removal operation | work can be switched instantaneously, without removing the earth removal and rake apparatus A. FIG. For this reason, the soil discharging and rake device A can shorten the construction period and has the effect of reducing the cost.

  As shown in FIGS. 2 to 4, a rake body 11 is suspended from the bottom plate 10 of the soil discharge and rake device A. The function of the rake body 11 is to form irregularities in advance on the surface that has been compacted by the rake body 11 when repairing a road surface or the like, so that the rake body 11 adheres well to the next rolling layer. The lower end position of the main body 11 is configured to be located at least above the lower end edge in the opened state of the soil removal auxiliary plate 40, that is, the state of performing the soil removal function, so as not to hinder the soil removal work. .

  That is, the rake body 11 does not interfere with the soil removal work when the soil removal work is performed.

  In addition, the rake body 11 can optimally form the above-described concave and convex stripes according to the material forming the rolling layer by optimally designing the interval of the rake body 11 depending on the work.

  Further functions of the rake body 11 are that the rake body 11 is suspended from the bottom plate 10 in a comb shape as shown in FIG. It is to remove organic matters such as glass and tree roots, that is, foreign matters. A similar function of the rake body 11 is to remove foreign matters such as a material having a nonstandard particle size in a roadbed material having a adjusted particle size.

  The soil discharge and rake device A exhibits such a function and removes foreign matters and the like so that the roadbed is reliably formed in accordance with the specification standards, so that it adheres well to each rolling layer. Not only can the quality of roads and parking lots be improved.

  Since the earth discharging and rake device A is configured as described above, the structure of the earth discharging plate C is not complicated, and is attached to the earth discharging plate C of the backhoe B so that rake work and earth removing work are performed. This eliminates the need to procure a rake dozer separately, thereby contributing to cost reduction and global environmental protection.

  As shown in FIGS. 2 and 3, bolt insertion holes 31 are formed in the vicinity of the upper ends of the left and right lateral plates 30, and when the soil removal and rake device A is attached to the soil removal plate C, the soil removal plate The left and right side plates 86 of C and the left and right side plates 30 of the soil discharging and rake device A are fixed by fixing bolts K inserted into the bolt insertion holes 31. Each bolt insertion hole 31 is drilled in accordance with the position of an existing wire engagement hole 88 drilled to lift the earth discharging plate C.

  For this reason, the soil discharging and rake device A can be further easily detached by using the bolt insertion hole 31 and the wire engagement hole 88.

  Further, the bolt insertion hole 31 drilled in the vicinity of the upper end portion of the left and right lateral side plates 30 is aligned with the existing wire engagement hole 88 for lifting the earthing plate formed in the side plate 86 of the earthing plate C. One or more (two in this case) are formed so that they can be adjusted.

  Therefore, even if the wire engagement hole 88 is drilled at a slightly different position depending on the type of the earth discharging plate C, it can be accurately matched with any of the bolt insertion holes 31 among the plurality of drilled holes. The soil discharge and rake device A is securely fixed by the soil discharge plate C, and the soil discharge and rake device A does not fall off due to earth pressure or vibration during the rake operation or the soil discharge operation.

  Further, by mounting a plurality of bolt insertion holes 31, attachment of the soil discharge and rake device A centering on the contact portion between the lower edge of the soil discharge surface plate 85 of the soil discharge plate C and the soil discharge and rake device A is provided. You can also adjust the angle.

  As shown in FIG. 4, fixing bolts 33 are provided on the upper portions of the left and right lateral plates 30 via brackets 32, which are for fixing when the earth removal auxiliary plate 40 is closed.

  As shown in FIG. 3 and FIG. 4, the left and right side edges of the soil discharge auxiliary plate 40 are respectively provided with left and right fastening side plates 42, and the soil discharge auxiliary plate 40 is stored on the soil discharge plate C side. In this state, the interval between the left and right fastening side plates 42 is made shorter than the interval between the left and right lateral plates 30 so as to overlap at least the inside of the left and right lateral plates 30. Further, an engagement protrusion 43 is provided at the front end of the left and right wearing side plate 42 in the earthing function state of the earthing auxiliary plate 40, and the storage state of the earthing auxiliary plate 40, that is, the earthing function state In the rake function state in which the earth removal auxiliary plate 40 is inverted around the pivotal support portion 50 at the base end edge of the earth removal auxiliary plate 40, the engagement protrusion 43 engages with the fastening bolt 33 of the left and right lateral side plates 30. It is configured not to move forward.

  For this reason, by tightening the left and right fastening bolts 33, the front ends of the left and right fastening bolts 33 abut against the engaging protrusions 43 at the front ends of the left and right fastening side plates 42. That is, the left and right lateral plates 30 and the soil removal auxiliary plate 40 are fixed via the fixing bolts 33. Note that, when the earth discharge auxiliary plate 40 is fixed as described above, the engaging projection tip edge 43a abuts the earth discharge surface plate 85, although it depends on the curvature of the circular arc shape of the earth discharge surface plate 85. Stable and secure.

  Accordingly, the earth removal auxiliary plate 40 is securely fixed and does not fall down to the earth discharging plate C side or fall forward. Therefore, the earth removal and rake device A performs the rake work more efficiently and reliably. be able to.

  The embodiment of the present invention is configured as described above, and the soil discharge and rake device A of the present invention is attached to the existing discharge plate C of the backhoe B as follows. The mounting procedure will be described using schematic diagrams.

  As shown in FIG. 5 (a), first, the soil discharge and rake device A of the present invention is placed on a relatively flexible ground. At this time, the earth removal auxiliary plate 40 is pivoted downward to be in a suspended state. Therefore, the lower end of the earth removal auxiliary plate 40 and the lower end of the rake body 11 serve as legs, and the earth removal and rake of the present invention. Device A is placed and erected on the ground surface.

  In this state, the existing backhoe B is positioned behind the soil discharge / rake device A of the present invention, and the soil discharge / rake device A of the present invention is positioned in front of the soil discharge plate C of the backhoe B. .

  Next, as shown in FIG. 5B, the bucket 74 of the tip boom 72 of the backhoe B is moved up and down to strike the bottom plate 10 of the soil removal and rake device A of the present invention from above, so that the bottom plate 10 The suspended rake body 11 is buried in the ground. At this time, the earth removal auxiliary plate 40 does not interfere with the burial of the rake body 11 while sliding on the ground surface around the pivotal support portion 50 at the base edge and tilting forward. Alternatively, the bottom plate 10 of the soil removal and rake device A of the present invention, in which the soil removal auxiliary plate 40 is pivotally fixed in advance around the pivotal support 50 and stands diagonally on the ground, is beaten with the bucket 74 of the backhoe B. The rake body 11 is buried in the ground.

  Thereafter, as shown in FIG. 3 and FIG. 5 (c), the backhoe B is moved forward so that the soil discharge plate C is stored in the partition space formed by the left and right lateral plates 30, the bottom plate 10, and the front plate 20, Next, the left and right lateral plates 30 are abutted against the side plate 86 of the soil removal plate C from the outside while the lower edge of the soil removal surface plate 85 of the backhoe B is engaged with the upper edge of the front side plate 20 of the soil removal and rake device A of the present invention. The wire engaging hole 88 for lifting the earthing plate previously drilled in the side plate 86 of the earthing plate C and the bolt insertion holes 31 of the left and right side plates 30 are coded so that the fixing bolts K are attached to both holes. , And the left and right lateral plates 30 of the soil discharge and rake apparatus A of the present invention and the side plates 86 of the soil discharge plate C are fixed integrally.

  In such a state, the soil discharge and rake device A of the present invention is in a state of being integrally attached to the soil discharge plate C of the backhoe B.

  Next, as shown in FIG. 5 (d), when performing the earth removal work, the earth removal auxiliary plate 40 is rotated downward to come into contact with the surface of the front side plate 20 to be suspended. In such a state, the soil discharge auxiliary plate 40 is in an integrated state in which the front of the rake body 11 is cut off and connected to the lower side of the soil discharge plate C. Auxiliary plate 40 is effective to remove the embankment etc. on the ground surface, and also to increase the earthing functional area in cooperation with the original earthing plate C located above and behind the earthing auxiliary plate 40 In addition, efficient earth removal work can be performed.

  On the other hand, when the rake work is performed after the earth surface soil removal and pressure reduction work is completed, the earth removal assisting plate 40 is pivoted upward about the pivot 50 and fixed to the left and right lateral plates 30 by the fixing means. . In such a state, the rake work can be performed effectively without hindering the rake work of the rake body 11 in which the soil removal auxiliary plate 40 is suspended from the bottom plate 10.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

1 is a right side view of a backhoe equipped with a soil discharge and rake device according to the present embodiment. It is a perspective view of a soil discharge and rake device and a soil discharge plate according to the present embodiment. It is an enlarged view which shows the right side surface which mounted | wore the earth removal board with the earth removal and rake apparatus which concerns on this embodiment. It is a front view of the soil discharge and rake device according to the present embodiment. It is the schematic diagram which showed the procedure at the time of attaching the soil discharge and rake apparatus which concerns on this embodiment to a soil discharge board.

Explanation of symbols

A A soil removal and rake device that can be mounted on a backhoe discharge plate B A backhoe C A discharge plate K A fixing bolt 10 A bottom plate 11 A rake body 20 A front plate 21 A front plate pivot bearing boss 30 A lateral plate 31 A bolt insertion hole 32 A bracket 33 A stop Landing bolt 40 Earth removal auxiliary plate 41 Earth removal auxiliary plate pivot bearing boss 42 Stopping side plate 43 Engagement projection 43a Engagement projection tip edge 50 Pivot 51 Axis 72 Tip boom 73 Link mechanism 74 Bucket 85 Earth removal surface plate 86 Side plate 87 Earth removal space 88 Wire engagement hole

Claims (3)

Install the bottom plate between the lower edges of the left and right side plates, and the front plate between the lower half front end edges of the left and right side plates,
A large number of rake bodies are suspended from the bottom plate, and the base edge of the soil removal assisting plate is pivotally supported at the upper edge of the front plate, and the soil removal assisting plate is pivoted downward to be suspended. If so, the bottom edge of the soil discharge auxiliary plate is configured to be positioned at least below the bottom end of the rake body,
Furthermore, the earth removal auxiliary plate can be attached to the earth excavation plate of the backhoe, characterized in that the rake work can be performed by the rake body when the earth removal auxiliary plate is pivoted upward about the pivot. Cum rake device.   2. The exhaust according to claim 1, wherein a bolt insertion hole is formed in the upper part of the left and right lateral side plates to be attached to the side plate of the backhoe drainage plate via a bolt. Soil and rake device.   A fixing means is provided in the vicinity of the upper front edge of each of the left and right side plates to fix the earth removal auxiliary plate to the left and right side plates by rotating upward about the pivotal support. A soil removal and rake device that can be attached to the soil removal board of the backhoe according to 1 and 2.

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