Excavation and disposal equipment and excavation and disposal method

Abstract

Provided is an excavation and disposal device and an excavation and disposal method that reduce the burden on workers when discharging soil while performing manual excavation work and improve work efficiency. [Solution] The excavation and disposal device 1 is equipped with a base 10 that is installed on the ground and includes a support section 12 that extends in a direction intersecting the ground, and an arm section 13 that is supported on the tip of the support section and extends parallel to the ground, a support device 20 that includes a winch mechanism 30 that is supported on the arm section 13, and an operating rope 40 that is supported on and wound up by the winch mechanism 30, and an excavation and disposal mechanism 50 that includes an auger mechanism 51 that is connected to one end of the operating rope 40, and an operating rod 52 whose tip is detachable from the base end of the auger mechanism 51 and can be operated by a worker on the ground.

Description

[Technical Field]

[0001] The present disclosure relates to an excavation and disposal device and an excavation and disposal method. [Background technology]

[0002] In urban areas, manual digging using an auger is the norm for excavating holes for utility poles and other structures due to the influence of buried obstacles. This is because when using electric excavation tools, there is a risk of damaging the buried obstacles.

[0003] For example, Patent Document 1 proposes a device that uses a screw-type auger to manually dig a relatively deep vertical hole with light force and discharge soil as it digs. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-176297 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the screw-type auger in Patent Document 1 is heavy and difficult to operate. Furthermore, when digging a hole with a large diameter and depth, the amount of soil discharged increases, so the device must be lifted above ground to discharge the soil, which places a burden on the worker.

[0006] An object of the present disclosure is to reduce the burden on workers when discharging soil while performing manual excavation work, and to improve work efficiency. [Means for solving the problem]

[0007] In order to solve the above problems, an excavation and disposal device according to one aspect of the present disclosure is a base including a support portion installed on the ground and extending in a direction intersecting the ground, and an arm supported on a tip of the support portion and extending parallel to the ground; a support device including a winch mechanism supported by the arm and an operating rope supported by the winch mechanism and wound up; an excavation and disposal mechanism including an auger mechanism connected to one end of the operation rope, and an operation rod whose tip is detachable from the base end of the auger mechanism and can be operated by an operator on the ground; Equipped with. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to reduce the burden on workers when discharging soil while performing manual excavation work, thereby improving work efficiency. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram showing the configuration of an excavation and disposal device 1 of the present embodiment. [Figure 2] 1 is a diagram showing the configuration of an excavation and disposal device 1 of the present embodiment. [Figure 3] 1 is a diagram showing the configuration of a gantry 10 according to the present embodiment. [Figure 4] FIG. 2 is a front view showing the configuration of a support device 20 of the present embodiment. [Figure 5] FIG. 2 is a side view showing the configuration of a support device 20 of the present embodiment. [Figure 6] 2 is a diagram showing the configuration of an excavation and earth removal mechanism 50 of the present embodiment. FIG. [Figure 7] 1 is a flowchart showing an excavation and discharge method using the excavation and discharge device 1 according to the present embodiment. [Figure 8] FIG. 2 is a diagram showing a modified example of the excavation and disposal device 1 of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In all drawings describing the embodiments, common components are designated by the same reference numerals, and repeated description will be omitted. Note that the following embodiments do not unduly limit the content of the present disclosure described in the claims. Furthermore, not all components shown in the embodiments are necessarily essential components of the present disclosure. Furthermore, each drawing is a schematic diagram and is not necessarily a precise illustration.

[0011] In addition, in the following description, when describing elements of the same type without distinguishing between them, reference symbols (or common symbols among the reference symbols) may be used, and when describing elements of the same type with distinction between them, the identification numbers (or reference symbols) of the elements may be used.

[0012] <Overall structure> The excavation and discharge device according to this embodiment is a device that allows an operator on the ground to manually excavate the ground for utility pole holes, etc., and discharge the excavated soil electrically.

[0013] In this embodiment, the term "distal end" refers to one end in the longitudinal direction, and the term "base end" refers to the other end in the longitudinal direction. Furthermore, "parallel" refers to a state within ±20° from the parallel direction, and "perpendicular" refers to a state within ±20° from the perpendicular direction.

[0014] The configuration of the excavation and discharge equipment 1 according to this embodiment will be described. Fig. 1 is a diagram showing the configuration of the excavation and discharge equipment 1 according to this embodiment, during excavation work. Fig. 2 is a diagram showing the configuration of the excavation and discharge equipment 1 according to this embodiment, during earth discharge work.

[0015] As shown in Figures 1 and 2, the excavation and disposal equipment 1 comprises a base 10, a support device 20, and an excavation and disposal mechanism 50. The base 10 is installed on the ground near the hole to be excavated and supports the support device 20. The support device 20 supports an auger mechanism 51 of the excavation and disposal mechanism 50 by an operating rope 40. The excavation and disposal mechanism 50 includes an auger mechanism 51 and an operating rod 52 that is detachable from the auger mechanism 51.

[0016] As shown in Figure 1, during excavation work, an auger mechanism 51 of an excavation and soil discharge mechanism 50 is connected to an operating rod 52. When an operator manually operates the operating rod 52 from the ground to rotate it clockwise, the auger mechanism 51 rotates and excavates the ground underground. This generates excavated soil in the hole.

[0017] As shown in Figure 2, during soil discharge work, the operating rod 52 is detached from the auger mechanism 51 of the excavation and discharge mechanism 50. When the worker operates the lever 33c of the support device 20, the operating rope 40 is electrically wound up. As a result, the excavated soil piled up on the auger mechanism 51, together with the auger mechanism 51 supported by the operating rope 40, is lifted up to the ground and discharged. At this time, by separating the operating rod 52 from the auger mechanism 51 and discharging the soil, operability during lifting can be improved and the load on each part due to the weight of the operating rod 52 can be reduced.

[0018] <Configuration of the stand 10> The configuration of the gantry 10 according to this embodiment will be described below. Fig. 3 is a diagram showing the configuration of the gantry 10 according to this embodiment.

[0019] As shown in FIG. 3, the pedestal 10 includes a leg portion 11, a support portion 12, an arm portion 13, a first reinforcing portion 14, and a second reinforcing portion 15.

[0020] The legs 11 are placed on the ground and allow the platform 10 to stand on its own. The legs 11 include a pair of first sections extending parallel to the ground and parallel to each other, and a second section connecting the ends of the pair of first sections. Each of the pair of first sections perpendicularly intersects with the second section. That is, the pair of first and second sections form a U-shape. A hole is formed in the ground in the center of this U-shape. The first and second sections may be connected by welding or fixed with bolts or the like. The legs 11 are, for example, square pipes made of metal.

[0021] The base end of the support portion 12 is connected to the upper surface of the longitudinal center portion of the second section of the leg portion 11, and extends vertically to the ground. The tip of the support portion 12 supports the arm portion 13. The support portion 12 has enough strength to support the weight of the arm portion 13, the support device 20, the auger mechanism 51, and soil removal, etc. The support portion 12 is, for example, a pipe made of a metal member.

[0022] The base end of the arm portion 13 is connected to the tip of the support portion 12. The arm portion 13 extends parallel to the ground and passes above the center of the U-shaped leg portion 11. The arm portion 13 supports the support device 20 so that it can move longitudinally. The arm portion 13 has enough strength to support the weight of the support device 20, the auger mechanism 51, and soil removal equipment. The arm portion 13 is, for example, a square pipe made of a metal member.

[0023] The first reinforcing portion 14 is provided to connect the vicinity of the tip of the support portion 12 and the vicinity of the base end of the arm portion 13. The first reinforcing portion 14 extends, for example, at an angle of 45° with respect to the longitudinal directions of the support portion 12 and the arm portion 13. The first reinforcing portion 14 reinforces the arm portion 13 so that it can maintain a perpendicular position relative to the support portion 12. The first reinforcing portion 14 is formed, for example, from a metal member.

[0024] The second reinforcing portion 15 is a pair of strip-shaped members that connect both end portions of the second portion of the leg portion 11 to the longitudinal center portion of the support portion 12. The second reinforcing portion 15 extends toward the support portion 12 at an angle of 60° with respect to the longitudinal direction of the second portion of the leg portion 11, for example. The second reinforcing portion 15 reinforces the support portion 12 so that it can maintain its perpendicular position relative to the leg portion 11 (the ground).

[0025] <Configuration of Support Device 20> The configuration of the support device 20 according to this embodiment will be described. Fig. 4 is a front view showing the configuration of the support device 20 according to this embodiment. Fig. 5 is a side view showing the configuration of the support device 20 according to this embodiment.

[0026] 4 and 5, the support device 20 includes a winch mechanism support section 21, a winch mechanism 30, and an operating rope 40. The support device 20 is a device that electrically lifts the auger mechanism 51 during soil removal work and automatically stops after lifting it to a desired position.

[0027] The winch mechanism support part 21 is supported by the arm part 13. The winch mechanism support part 21 is movable in the longitudinal direction of the arm part 13. The winch mechanism support part 21 supports the winch mechanism 30.

[0028] The winch mechanism 30 includes a drum support portion 31, a drum 32, a switch mechanism 33, and a drive device .

[0029] The drum support portion 31 is held by a holding portion 33a of the switch mechanism 33. The drum support portion 31 includes a plurality of rotating shafts and gears, and rotatably supports the drum 32. The drum support portion 31 is formed of, for example, a metal member.

[0030] The drum 32 is supported rotatably around the rotation axis of the drum support part 31. The drum 32 is formed of a cylindrical metal member. The drum 32 rotates around the rotation axis to wind up the operating rope 40. In this embodiment, the operating rope 40 is wound around the drum 32 two times (two laps), but this is not limited thereto, and the operating rope 40 may be wound three or more times.

[0031] The switch mechanism 33 includes a holding portion 33a, a release mechanism 33b, a lever 33c, and a lever holding plate 33d. Each portion of the switch mechanism 33 operates in response to the winding of the operating rope 40 by the drum 32, thereby controlling the driving of the drive device 34 and automatically stopping it.

[0032] The holding portion 33a is supported on the arm portion 13 by the winch mechanism support portion 21 so as to be movable in the longitudinal direction. The holding portion 33a holds the drum support portion 31. The holding portion 33a holds the release mechanism 33b on both side surfaces of the drum support portion 31. The holding portion 33a also fixes and rotatably holds the base ends of the lever 33c and the lever holding plate 33d on one side of the drum support portion 31 (one axial side of the drum 32). Furthermore, the holding portion 33a holds the drive device 34 in a position where it can drive the drum 32. The holding portion 33a is formed of, for example, a metal member.

[0033] The release mechanism 33b is a metal rod-like member that is U-shaped when viewed from the front in FIG. 4. The release mechanism 33b is held by the holding portion 33a and is provided so as to cover both side surfaces and the lower side of the drum support portion 31. That is, the release mechanism 33b includes a pair of first portions extending downward and a second portion connecting the lower ends of the first portions. The first portions of the release mechanism 33b are held by the holding portion 33a so as to be movable up and down. The second portion is provided with a cylindrical pipe 33b-2 that extends in the vertical direction, and the operating rope 40 is inserted through the pipe 33b-2. The pipe 33b-2 guides the operating rope 40 so that it is wound around the drum 32.

[0034] 5, a protrusion 33b-1 extending perpendicular to the longitudinal direction of the first portions is provided on one side of the pair of first portions of the release mechanism 33b. When the release mechanism 33b is lifted upward, the protrusion 33b-1 pushes up the lever holding plate 33d from below its tip, causing the lever holding plate 33d to rotate.

[0035] The lever 33c is a metal rod-shaped member. The base end of the lever 33c in the longitudinal direction is rotatably held by the holding portion 33a. When the operator operates (rotates) the tip of the lever 33c in the longitudinal direction, the switch of the drive unit 34 is pressed (turned on) and the drive unit 34 is driven. Also, when viewed from the side in FIG. 5, the lever 33c is provided with a protrusion 33c-1 extending perpendicular to the longitudinal direction. This protrusion 33c-1 fits into an opening 33d-1 of the lever holding plate 33d, thereby fixing the angle of the lever 33c and keeping the switch of the drive unit 34 turned on.

[0036] The lever holding plate 33d is a rectangular metal plate. The base end of the lever holding plate 33d in the longitudinal direction is rotatably held by the holding portion 33a. The lever holding plate 33d rotates when the protrusion 33b-1 of the release mechanism 33b presses the lever holding plate 33d from below the tip in the longitudinal direction. The lever holding plate 33d has an opening 33d-1 below the center in the longitudinal direction. By fitting the protrusion 33c-1 of the lever 33c into the opening 33d-1, the lever holding plate 33d can fix the angle of the lever 33c and keep the switch of the drive unit 34 on.

[0037] The drive unit 34 is a device that applies a rotational force to the rotation shaft of the drum support unit 31 and the drum 32. The drive unit 34 applies a rotational force to the rotation shaft of the drum support unit 31, thereby rotating the drum 32 from the rotation shaft via a gear. The drive unit 34 is, for example, an electric screwdriver. The drive unit 34 is held by the holder 33a at a position where it can apply a rotational force to the rotation shaft of the drum support unit 31 and where a switch can be operated by the lever 33c.

[0038] The operating rope 40 is wound around and supported by the drum 32. One end of the operating rope 40, which passes through the drum 32, is inserted into the pipe 33b-2 of the release mechanism 33b and connected to the auger mechanism 51. The other end of the operating rope 40 is operated by an operator. The operating rope 40 includes a release mechanism operating unit 41 at an arbitrary position between the pipe 33b-2 of the release mechanism 33b and the auger mechanism 51. The diameter of the release mechanism operating unit 41 is larger than the diameter of the pipe 33b-2 of the release mechanism 33b. Therefore, when the operating rope 40 is wound around the drum 32 and the release mechanism operating unit 41 reaches the position of the pipe 33b-2, the release mechanism operating unit 41 lifts the release mechanism 33b via the pipe 33b-2. The release mechanism operating unit 41 includes, for example, a washer and a hose clamp that secures the washer to the operating rope 40.

[0039] The support device 20 is driven when lifting the auger mechanism 51 during soil removal work. First, the worker operates the lever 33c and presses the switch of the drive device 34, turning the drive device 34 on. At this time, the protrusion 33c-1 of the lever 33c fits into the opening 33d-1 of the lever holding plate 33d, and the lever holding plate 33d rotates downward due to its own weight, fixing the lever 33c at a predetermined angle. This keeps the switch of the drive device 34 on, and the drive device 34 continues to operate. As the drive device 34 is driven, the drum 32 rotates, the operating rope 40 is wound up, and the auger mechanism 51 is lifted up.

[0040] When the auger mechanism 51 is lifted to a desired position on the ground, the release mechanism operating unit 41 reaches the position of the pipe 33b-2 of the release mechanism 33b and lifts the release mechanism 33b via the pipe 33b-2. When the release mechanism 33b is lifted, the lever holding plate 33d rotates upward by the protrusion 33b-1 of the release mechanism 33b. This causes the protrusion 33c-1 of the lever 33c to disengage from the opening 33d-1 of the lever holding plate 33d, and the lever 33c returns to its original position due to its own weight, and the switch of the drive device 34 is no longer pressed. Then, the switch of the drive device 34 is turned off, the rotation of the drum 32 automatically stops, and the lifting of the auger mechanism 51 is completed.

[0041] <Configuration of excavation and discharge mechanism 50> The configuration of the excavation and discharge mechanism 50 according to this embodiment will be described below. Fig. 6 is a diagram showing the configuration of the excavation and discharge mechanism 50 according to this embodiment.

[0042] The excavation and discharge mechanism 50 includes an auger mechanism 51 and an operating rod 52. The excavation and discharge mechanism 50 is a mechanism that excavates the ground underground and discharges the excavated soil.

[0043] The auger mechanism 51 includes a main body 51a, a head portion 51b, a screw portion 51c, a convex portion 51d, a protruding portion 51e, a guide portion 51f, and an operating rope connecting portion 51g.

[0044] The main body 51a is a rod-shaped metal member. A head portion 51b is provided at the tip of the main body 51a. A protrusion 51d is provided at the base end of the main body 51a, and an operating rod 52 is detachably attached to the protrusion 51d.

[0045] The screw portion 51c is provided on the base end side of the head portion 51b of the main body 51a. The screw portion 51c is composed of a spiral blade and is provided 360° in the circumferential direction. The screw portion 51c and the head portion 51b excavate the ground underground. Furthermore, the excavated soil accumulates on the upper surface of the screw portion 51c, and the excavated soil can be discharged by lifting the auger mechanism 51 above ground.

[0046] The protrusion 51d is provided at the base end of the main body 51a. The cross-sectional shape of the protrusion 51d is, for example, circular. The diameter of the protrusion 51d is smaller than the inner diameter of the recess 52c of the operation unit 51, and the protrusion 51d fits into the recess 52c. The protrusion 51d is formed of, for example, a metal member. In FIG. 6, the protrusion 51d is provided integrally with the main body 51a at the base end of the main body 51a, but it may also be attached as a separate part.

[0047] The protrusion 51e is provided on the side surface of the convex portion 51d. The width of the protrusion 51e is smaller than the width of the opening 52d of the recess 52c. Therefore, when the convex portion 51d is fitted into the recess 52c, the protrusion 51e can move along the opening 52d.

[0048] The guide portion 51f is provided at the base end of the main body 51a (the base end of the convex portion 51d). The guide portion 51f has a tapered shape in which the diameter decreases toward the base end of the convex portion 51d. The tapered shape may be, for example, a cone, a triangular pyramid, or a square pyramid. The tapered shape of the guide portion 51f allows the guide portion 51f to serve as an insertion guide when inserting the guide portion 51f into the recessed portion 52c.

[0049] The operating rope connection part 51g is formed from a string-like metal member. The operating rope connection part 51g is U-shaped. Both ends of the U-shape are connected to the longitudinal center of the main body 51a. The operating rope connection part 51g is rotatable around the connection point with the main body 51a. When the operating rope 40 is connected to the bottom of the U-shape and pulled, the bottom of the U-shape is lifted upward, allowing the auger mechanism 51 to be lifted. Because the operating rope connection part 51g is formed from a metal member, shaking is suppressed when the auger mechanism 51 is lifted, improving operability.

[0050] The operating rod 52 includes a main body 52a, a handle 52b, a recess 52c, and an opening 52d. During excavation work, the operating rod 52 is connected to the auger mechanism 51 and is operated by a worker on the ground to excavate the ground.

[0051] The main body 52a is a rod-shaped member, and its cross section is, for example, circular. The main body 52a is made of, for example, metal.

[0052] The handle 52b is provided at the base end of the main body 52a. The handle 52b is a rod-shaped member that is held by a worker on the ground. The handle 52b extends perpendicular to the longitudinal direction of the main body 52a. In other words, the main body 52a and the handle 52b form a T-shape. The worker excavates the ground underground by rotating the handle 52b clockwise.

[0053] The recess 52c is provided at the tip of the main body 52a. The cross-sectional shape of the recess 52c is, for example, circular, and the inner diameter of the recess 52c is larger than the diameter of the protrusion 51d of the auger mechanism 51, so that the protrusion 51d fits inside the recess 52c.

[0054] The opening 52d is provided on the side surface of the recess 52c. The opening 52d includes a first portion, a second portion, and a third portion. The first portion extends in the longitudinal direction from the tip to the base end of the main body 52a. The second portion extends in the lateral direction from the end of the first portion on the base end side. The third portion extends in the longitudinal direction from the end of the second portion opposite the first portion side toward the base end side. The width of the opening 52d is greater than the width of the protrusion 51e.

[0055] <Excavation method> A description will now be given of a method for excavating and discharging soil using the excavating and discharging apparatus 1 according to this embodiment. Fig. 7 is a flowchart showing the method for excavating and discharging soil using the excavating and discharging apparatus 1 according to this embodiment.

[0056] First, a worker on the ground uses a shovel or the like to dig a hole that can be reached from the ground. Next, as shown in FIG. 7, the excavation and disposal device 1 is set up (step S11). Specifically, the platform 10 is placed on the ground. At this time, the platform 10 is placed so that a hole is located in the center of the U-shape of the leg 11. Then, the support device 20 is attached to the arm 13 of the platform 10, and one end of the operating rope 40 is connected to the auger mechanism 51.

[0057] Next, the auger mechanism 51 is lowered (step S12). Specifically, the other end of the operating rope 40 is operated by a worker on the ground, and the auger mechanism 51 connected to one end of the operating rope 40 via the drum 32 is lowered to the bottom of the hole.

[0058] Next, the operating rod 52 is connected to the auger mechanism 51 (step S13). Specifically, the operator on the ground operates the operating rod 52, and the protrusion 51d of the auger mechanism 51 fits into the recess 52c of the operating rod 52. At this time, by pushing the operating rod 52, the protrusion 51e of the auger mechanism 51 enters along a first portion of the opening 52d of the operating rod 52 and reaches the end of the first portion. Then, by rotating the operating rod 52 in the circumferential direction, the protrusion 51e enters along a second portion. By further pushing the operating rod 52, the protrusion 51e enters along a third portion of the opening 52d, and the operating rod 52 and the auger mechanism 51 are connected.

[0059] Next, excavation work is performed (step S14). Specifically, as shown in FIG. 1, an operator on the ground rotates the operating rod 52 while pushing it in, thereby rotating the auger mechanism 51. The rotation of the auger mechanism 51 excavates the ground. When the excavated soil accumulates in the hole, the excavation work is temporarily stopped.

[0060] Next, the operating rod 52 is removed from the auger mechanism 51 (step S15). Specifically, the operating rod 52 is pulled upward along the third portion of the opening 52d, rotated circumferentially along the second portion, and pulled upward along the first portion, thereby removing the operating rod 52 from the auger mechanism 51.

[0061] Next, as shown in Fig. 2, the auger mechanism 51 is lifted up by the operating rope 40, and soil removal work is performed (step S16). Specifically, a worker on the ground operates the lever 33c, pushing in the switch of the drive device 34 and turning on the drive device 34. At this time, the various parts of the switch mechanism 33 work together to keep the switch of the drive device 34 on, and the drive device 34 continues to operate. As the drive device 34 is driven, the drum 32 rotates, the operating rope 40 is wound up, and the auger mechanism 51 is lifted up.

[0062] When the auger mechanism 51 is lifted to a desired position on the ground, the various parts of the switch mechanism 33 work together to turn off the switch of the drive device 34, automatically stop the rotation of the drum 32, and complete the lifting of the auger mechanism 51. Then, the excavated soil piled up in the auger mechanism 51 is discharged.

[0063] Next, if the excavation work has not been completed (NO in step S17), the process returns to step S12 and the same work is carried out. On the other hand, if the excavation work has been completed (YES in step S17), the excavation and earth removal work is completed.

[0064] <Summary> As described above, the excavation and disposal device 1 of this embodiment is equipped with a platform 10 that is installed on the ground and includes a support unit 12 that extends in a direction intersecting the ground and an arm unit 13 that is supported at the tip of the support unit and extends parallel to the ground; a support device 20 that includes a winch mechanism 30 supported by the arm unit 13 and an operating rope 40 that is supported by the winch mechanism 30 and wound up; an excavation and disposal mechanism 50 that includes an auger mechanism 51 supported at one end of the operating rope 40 and an operating rod 52 whose tip is detachable from the base end of the auger mechanism 51 and can be operated by a ground worker. This allows for manual excavation work and electrically operated earth removal work to be performed simultaneously. This reduces the burden on the worker during earth removal and improves work efficiency.

[0065] Furthermore, in the excavation and disposal device 1 of this embodiment, the winch mechanism 30 includes a drum 32 that winds up the operating rope 40, a drive device 34 that rotates the drum 32, and a switch mechanism 33 that controls the drive of the drive device 34. As a result, during soil disposal work, the drive device 34 can be easily driven by operating the switch mechanism 33, further reducing the burden on the worker.

[0066] Furthermore, in the excavation and disposal device 1 of this embodiment, the switch mechanism 33 automatically stops the drive device 34 in response to the winding of the operating rope 40. This eliminates the need for the worker to perform an operation to stop the drive device 34, thereby further reducing the burden on the worker.

[0067] Furthermore, in the excavation and disposal device 1 of this embodiment, a protrusion 51d is provided at the base end of the auger mechanism 51, a recess 52c into which the protrusion 51d of the auger mechanism 51 fits is provided at the tip of the operating rod 52, and a guide portion 51f is provided on the protrusion 51d to guide the insertion of the recess 52c. This makes it easy to attach and detach the auger mechanism 51 and the operating rod 52.

[0068] (Variation) FIG. 8 is a diagram showing a modified example of the excavation and disposal device 1 of this embodiment. As shown in FIG. 8, in this modified example, the drum 32 may include a partition 32a that divides the drum 32 in the axial direction. The partition 32a is provided in the center of the drum 32 in the axial direction. The partition 32a is also provided along half the circumference of the drum 32 (180°). The drum 32 supports the first winding of the operating rope 40 on one side separated by the partition 32a, and the second winding of the operating rope 40 on the other side. In other words, the windings of the operating rope 40 can be separated. This prevents the operating rope 40 from becoming tangled or overlapping when the drum 32 winds up the operating rope 40 during soil removal work, and prevents interference with the drive of the winch mechanism 30.

[0069] In the above embodiment, the pedestal 10 is configured to support the arm 13 with the legs 11 and the support 12, but the present invention is not limited to this. For example, there may be no legs, and two pairs of support parts may support the arm 13. The pair of support parts may be configured to extend obliquely to the ground (for example, at an angle of 45° to 60° to the ground) and support each other.

[0070] In the above embodiment, the configuration of each part of the pedestal 10 is fixed, but the present invention is not limited to this. For example, the first part of the leg 11 may be extendable in the longitudinal direction. Also, for example, the angle of the first part of the leg 11 relative to the second part may be changeable. Also, for example, the arm 13 and the first reinforcing part 14 may be foldable so as to be stored parallel to the support part 12. Also, for example, the arm 13 and the first reinforcing part 14 may be rotatable in the circumferential direction of the support part 12.

[0071] In the above embodiment, one protrusion 51e is provided on the auger mechanism 51, but the present invention is not limited to this. For example, two protrusions 51e may be provided at an interval of 180°. Correspondingly, two openings 52d may be provided on the operating rod 52.

[0072] In the above embodiment, the frame 10, the support device 20, and the excavation and disposal mechanism 50 are each made of metal, but the present invention is not limited to this. Any material having a strength comparable to that of metal may be used, such as carbon or plastic.

[0073] (Addendum) The matters described in the above embodiments will be supplemented below.

[0074] (Appendix 1) a base including a support portion installed on the ground and extending in a direction intersecting the ground, and an arm supported on a tip of the support portion and extending parallel to the ground; a support device including a winch mechanism supported by the arm and an operating rope supported by the winch mechanism and wound up; an excavation and disposal mechanism including an auger mechanism supported on one side of the operation rope, and an operation rod whose tip is detachable from the base end of the auger mechanism and can be operated by an operator on the ground; An excavation and soil removal device equipped with:

[0075] (Appendix 2) The excavation and disposal device described in (Appendix 1) includes a drum that winds up the operating rope, a drive device that rotates the drum, and a switch mechanism that controls the drive of the drive device.

[0076] (Appendix 3) The excavation and disposal device according to claim 2, wherein the drum includes a partition portion in the center in the axial direction.

[0077] (Appendix 4) The excavation and disposal device according to claim 2, wherein the switch mechanism automatically stops the drive device in response to winding of the operating rope.

[0078] (Appendix 5) The excavation and disposal device according to claim 1, wherein a protrusion is provided at the base end of the auger mechanism, and a recess into which the protrusion of the auger mechanism fits is provided at the tip of the operating rod.

[0079] (Appendix 6) The excavation and disposal device according to claim 5, wherein a guide portion is provided on the convex portion of the auger mechanism to guide the insertion of the operating rod into the concave portion.

[0080] (Appendix 7) A method for excavating and discharging soil using the excavation and discharging device according to any one of (Appendix 1) to (Appendix 6), connecting the operating rod to the auger mechanism; operating the operating rod to excavate the ground with the auger mechanism; removing the operating rod from the auger mechanism; A step of discharging excavated soil by lifting the auger unit with the operating rope; An excavation and soil removal method comprising: [Explanation of symbols]

[0081] 1. Excavation and disposal equipment 10. Mounting stand 11...legs 12...Support part 13 Arm section 14 First reinforcement part 15 Second reinforcement section 20...Support device 21. Winch mechanism support part 30. Winch mechanism 31 Drum support part 32 drums 32a···Partition 33 Switch mechanism 33a...Holding part 33b...Release mechanism 33b-1...Protrusion 33b-2 Pipe 33c···Lever 33c-1...Protrusion 33d Lever retaining plate 33d-1 Opening 34. Drive unit 40 Operating rope 41...Release mechanism operation part 50 Excavation and soil removal mechanism 51 Auger mechanism 51a···Main body 51b Head 51c···Screw part 51d···Convex part 51e...Protrusion 51f Guide part 51g Operating rope connection 52...operation rod 52a···Main body 52b···Handle 52c Recess 52d...Opening

Claims

1. a base including a support portion installed on the ground and extending in a direction intersecting the ground, and an arm supported on a tip of the support portion and extending parallel to the ground; a support device including a winch mechanism supported by the arm and an operating rope supported by the winch mechanism and wound up; an excavation and disposal mechanism including an auger mechanism connected to one end of the operation rope, and an operation rod whose tip is detachable from the base end of the auger mechanism and can be operated by an operator on the ground; An excavation and soil removal device equipped with:

2. 2. The excavation and disposal device according to claim 1, wherein the winch mechanism includes a drum that winds up the operating rope, a drive device that rotates the drum, and a switch mechanism that controls the drive of the drive device.

3. The excavation and removal device according to claim 2, wherein the drum includes a partition portion at the center in the axial direction.

4. 3. The excavation and disposal device according to claim 2, wherein the switch mechanism automatically stops the drive device in response to winding of the operating rope.

5. 2. The excavating and discharging device according to claim 1, wherein a protrusion is provided at the base end of the auger mechanism, and a recess is provided at the tip of the operating rod, into which the protrusion of the auger mechanism fits.

6. 6. The excavating and discharging device according to claim 5, wherein the convex portion of the auger mechanism is provided with a guide portion for guiding the insertion of the operating rod into the concave portion.

7. A method for excavating and discharging soil using the excavating and discharging device according to any one of claims 1 to 6, connecting the operating rod to the auger mechanism; operating the operating rod to excavate the ground with the auger mechanism; removing the operating rod from the auger mechanism; a step of discharging excavated soil by lifting the auger mechanism with the operating rope; An excavation and soil removal method comprising:

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