Leveling barge

Abstract

To provide a leveling barge capable of leveling the bottom of a water more neatly by applying rolling compaction. [Solution] A leveling barge 100 has one end 21 of a pair of left and right arms 20 rotatably attached to both left and right ends at the front of the hull in the leveling direction, with the other end 22 located underwater, and a blade 30 for leveling the bottom of the water attached between the two arms 20 on the other end 22 side, and the tip of a wire 50 extending from the rear of the hull in the leveling direction is fixed to the blade 30, so that the height position of the blade 30 in the water can be adjusted by changing the length of the wire 50. The blade 30 is rotatably attached between the other ends 22 of the pair of left and right arms 20, and is equipped with a main body 31 with a receiving surface portion 31a on the front side, a plurality of cutting claw portions 32 spaced apart in the left-right direction at the lower end of the receiving surface portion 31a, and a rolling portion 33 attached to the lower rear side of the main body 31, with a curved surface 33a protruding downwards, and rolling the soil and sand cut by the cutting claw portions 32.

Description

[Technical field]

[0001] The present invention relates to a leveling barge equipped with a blade for leveling the bottom surface of the water, for example, the sea or a river. [Background technology]

[0002] When leveling the bottom surface of the sea, river, etc. during dredging work, conventionally, as shown in Figures 7 and 8, an H-shaped steel beam 3 suspended by a wire 2 from a leveling barge 1 is used as a blade 5, and the blade 5, which extends in the width direction (left and right direction) of the leveling barge 1, is moved forward in the leveling direction to level the uneven bottom surface.

[0003] If the sediment on the bottom of the water is soft (silty), the blade 5 can effectively scrape off the sediment. However, if the sediment is hard, the blade 5 will float up or rotate, preventing the sediment from being scraped off. For this reason, the weight of the blade 5 is increased by pouring concrete 4 into the H-shaped steel 3, or, as shown in Figure 9, the blade 5 is constructed by connecting four H-shaped steel pieces 3 with concrete 4 poured into them. However, even with this, the depth of the blade 5 may become unstable due to the blade 5 floating up or rotating, making it difficult to install the blade properly.

[0004] In response to this, a blade 15 is known which has a plate-shaped tip portion 12 fixed to the tip side of a main body portion 11 and a plurality of claw portions 13 spaced apart in the width direction at the lower end of the tip portion 12, as shown in FIG. 10 (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4700761 Summary of the Invention [Problem to be solved by the invention]

[0006] Leveling the bottom of the water using the blade 15 shown in FIG. 10 can prevent the blade 15 from floating up or rotating, but it only scrapes the soil on the bottom of the water, so although it can eliminate differences in the unevenness of the bottom of the water, it cannot neatly level the bottom surface. Furthermore, since the bottom is only smoothed and not compacted afterwards, it is likely that unevenness will occur again over time.

[0007] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a leveling barge that can more neatly level the bottom of the water by applying rolling pressure. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention provides a leveling barge (100) in which one end (21) of a pair of left and right arms (20, 20) is rotatably attached to both left and right ends (22) of the front side of the hull in the leveling direction and located underwater, and a blade (30) for leveling the bottom of the water is attached between the arms (20, 20) on the other end (22) side, and a tip of a wire (50) extending from a winch (40) provided on the rear side of the hull in the leveling direction is fixed to the other end (22) of the arms (20, 20) or to the blade (30), and the height position of the blade (30) in the water can be adjusted by changing the length of the wire (50), The blade (30) is a main body portion (31) that is attached between the other ends (22) of the pair of left and right arms (20, 20) so as to be rotatable relative to the arms (20, 20) and that has a receiving surface portion (31a) on a front surface that is a front side in the smoothing direction; a plurality of cutting claw portions (32) provided at intervals in the left-right direction at a lower end of the receiving surface portion (31a) provided on the main body portion (31); a rolling section (33) provided at a rear lower portion of the main body section (31), having a curved surface (33a) protruding downward, for rolling the soil cut by the cutting claw section (32); The wires (50) extend from the left and right rear sides of the hull in the leveling direction in correspondence with the pair of left and right arms, The tip of the wire (50) is bifurcated, one (51) is connected to the upper front part of the main body part (31), and the other (52) is connected to the upper rear part of the main body part (31); Furthermore, one end (51) of the wire (50) is located behind the position of the receiving surface portion (31a) provided on the main body portion (31). A position higher than the position where the other wire (52) of the wire (50) is connected the other end (22) of the pair of left and right arms (20, 20) is connected forward of the position of the receiving surface portion (31a), When the receiving surface portion (31a) of the main body portion (31) is in a vertical position, the tip position (P) of the cutting claw portion (32) is made lower than the lowermost surface position (S) of the rolling portion (33).

[0010] In the present invention, the main body portion (31) is inclined upward from the rear side in the smoothing direction to the front side in the smoothing direction.

[0011] The present invention also provides The cutting claw portion (32) is inclined downward from the rear side in the smoothing direction to the front side in the smoothing direction, and a space (Q) is provided between the cutting claw portion (32) and the rolling portion (33).

[0013] The symbols in parentheses above indicate corresponding elements or items shown in the drawings and in the detailed description of the invention described below. Effect of the Invention

[0014] According to the leveling barge of the present invention, the blade that levels the bottom surface of the water is attached to the other end of a pair of left and right arms attached to the hull, and its height position underwater is adjusted via a wire.The leveling barge is equipped with a main body with a receiving surface portion on the front, multiple cutting claw portions, and a compacting portion, so that as the leveling barge moves forward in the leveling direction, unevenness in the bottom surface of the water is scraped off by the cutting claw portions and the scraped-off soil and sand is received by the receiving surface portion, and as the leveling barge moves further forward, the bottom surface of the water is leveled horizontally. The horizontally leveled water bottom surface is then compacted by a compacting section having a curved surface protruding downward, so that the water bottom surface is compacted and a neat, horizontal state is maintained for a long period of time.

[0015] In the conventional example shown in Figures 7 to 10, the unevenness of the bottom surface is simply scraped away, without any consideration of subsequently compressing it to make it level and level, so it is not possible to achieve a neat finish. However, in the present invention, after scraping away the unevenness with the cutting claw section, the blade immediately performs compaction with the compacting section, so that the bottom can be leveled more neatly and the horizontal state can be maintained for a long period of time.

[0016] Furthermore, according to the present invention, the cutting claw portion is inclined downward from the rear side in the smoothing direction to the front side in the smoothing direction, so that irregularities in the water bottom surface can be sharply cut away. Furthermore, since a space is provided between the cutting claw portion and the compacting portion, the soil cut by the cutting claw portion enters the space, and even if there is a large amount of soil, it is successfully compacted by the compacting portion.

[0017] Furthermore, according to the present invention, the main body is inclined upward from the rear to the front in the leveling direction, so that the front side of the blade, which is provided with multiple cutting claw portions, is prevented from floating up from the bottom of the water during leveling, allowing for stable leveling work to be performed.

[0018] Furthermore, according to the present invention, when the receiving surface of the main body is in a vertical position, the tip position of the cutting claw portion is lower than the lowest surface position of the compacting portion, so that the soil can be firmly compacted from above.

[0019] In addition, according to the present invention, the wires extend from the left and right rear sides of the hull in the leveling direction corresponding to the pair of left and right arms, and the ends of the wires are split into two, one connected to the upper front part of the main body and the other connected to the upper rear part of the main body, which also prevents the front side of the blade from floating up from the bottom of the water when leveling.

[0020] The configuration of this type of leveling barge with a blade is not something that has existed in the past, including in Patent Document 1, and is therefore extremely unique. [Brief description of the drawings]

[0021] [Figure 1]FIG. 2 is a side view showing the configuration of a leveling barge according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an enlarged side view showing the blade of FIG. [Diagram 3] FIG. 2 is an enlarged front view showing the blade of FIG. [Figure 4] FIG. 2 is an enlarged plan view showing the blade of FIG. [Diagram 5] FIG. 2 is an enlarged side view showing the state of leveling by a leveling barge according to an embodiment of the present invention. [Figure 6] 2 is an enlarged plan view showing another embodiment of the blade of FIG. 1. [Figure 7] FIG. 11 is a side view showing the configuration of a leveling barge according to a conventional example. [Figure 8] FIG. 8 is an enlarged side view showing the blade of FIG. 7. [Figure 9] 8 is an enlarged side view showing another embodiment of the blade of FIG. 7. [Figure 10] FIG. 13 is an enlarged perspective view showing another blade according to a conventional example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] A leveling barge 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. FIG.

[0023] As shown in FIG. 1, the leveling barge 100 according to the embodiment of the present invention has a pair of left and right arms 20, 20 at both ends in the left and right direction, which is the width direction of the hull, and a blade 30 is attached between the pair of left and right arms 20, 20. One end 21, 21 of a pair of left and right arms 20, 20 is attached to the left and right of the hull so as to be freely rotatable, and the other end 22, 22 of the arms 20, 20 is located in the water, and a blade 30 for leveling the water bottom surface is attached between the other ends 22, 22 of both arms 20, 20. The tip of a wire 50 extending from the rear side of the hull in the leveling direction is fixed to the blade 30, and the height position of the blade 30 in the water can be adjusted by changing the length of the wire 50. The wires 50, 50 extend from a winch (not shown) installed in the center of the top surface of the hull (not particularly limited) corresponding to the pair of left and right arms 20, 20, and are attached to the blade 30 below via pulleys 40 provided on the left and right rear sides of the hull in the leveling direction. The leveling barge 100 normally moves forward by being pushed from the rear of the hull in the leveling direction to the front in the leveling direction (right side in Figure 1) by a push barge (not shown), but it is also possible to make the leveling barge self-propelled without a push barge.

[0024] As shown in FIGS. 2 to 4, the blade 30 includes a main body portion 31 serving as a base, a plurality of cutting claw portions 32, and a rolling portion 33. As shown in FIG.

[0025] The main body 31 is inclined upward from the rear side in the leveling direction to the front side in the leveling direction, and a receiving surface 31a is provided on the front side which is the front side in the leveling direction. The other ends 22 of the pair of left and right arms 20, 20 are rotatably attached to the upper front portions of both left and right sides of the main body 31 in the leveling direction. Further, the tips of the wires 50, 50 extending from the left and right sides of the rear side in the leveling direction of the hull are bifurcated, one 51 being connected to the left-right center at the upper front side of the main body 31, and the other 52 being connected to the left-right center at the upper rear side of the main body 31. One 51 of the wires 50 is connected rearward of the position of the receiving surface 31a provided on the main body 31, and the other ends 22 of the pair of left and right arms 20, 20 are connected forward of the position of the receiving surface 31a. The method of connecting the wires 50 and the blade 30 is not particularly limited, and other modes may be used.

[0026] The cutting claws 32 are provided at intervals in the left-right direction on the lower end of the receiving surface 31a of the main body 31. The cutting claws 32 are provided so as to protrude from the lower end side of the receiving surface 31a obliquely downward with respect to the receiving surface 31a extending in the vertical direction from the rear side in the smoothing direction to the front side in the smoothing direction.

[0027] The rolling unit 33 is provided on the lower rear side of the main body 31, has a curved surface 33a protruding downward, and rolls the soil cut by the cutting claws 32. The rolling unit 33 extends continuously in the left-right direction (the width direction of the leveling barge 100), and its left-right width (length) is equal to the left-right width (length) of the blade 30 provided between the pair of left and right arms 20, 20. A space Q is provided between the cutting claw portion 32 and the rolling portion 33 into which the soil scraped by the cutting claw portion enters, and the soil that has entered the space Q through the gap between adjacent cutting claw portions 32 is compacted by the rolling portion 33.

[0028] When the receiving surface portion 31a of the main body portion 31 is in a vertical position, i.e., in the state shown in FIG. 2, the tip position P of the cutting claw portion 32 is lower than the lowermost surface position S of the rolling portion 33. This allows the rolling section 33 to strongly compact the soil from above.

[0029] With the leveling barge configured in this manner, as shown in Figure 5, as the leveling barge 100 moves forward in the leveling direction, the unevenness of the bottom surface of the water is scraped off by the cutting claw portion 32, the scraped-off soil and sand are received by the receiving surface 31a, and as the leveling barge 100 moves further forward, the bottom surface of the water is leveled horizontally. The horizontally leveled water bottom surface is then compacted by the compacting section 33 having a curved surface 33a protruding downward, so that the water bottom surface is compacted and the neat horizontal state is maintained for a long period of time.

[0030] In addition, since the main body 31 is inclined upward from the rear side to the front side in the leveling direction, the front side of the blade 30 provided with the multiple cutting claw parts 32 is prevented from floating up from the bottom of the water during leveling, and stable leveling work can be performed.

[0031] In this embodiment, as shown in Figure 4, the multiple cutting claw portions 32 are in a straight line in the left-right direction from the left end to the right end of the blade 30 in a plan view (when viewed from above), and the rolling portion 33 is also arranged parallel to this from the left end to the right end of the blade 30. However, this is not limited to this. For example, as shown in Figure 6, the multiple cutting claw portions 32 may be in a straight line in the left-right direction at the center of the blade 30 but bent or curved at both left and right ends, or the rolling portion 33 may be arranged in the center of the blade 30 but not at both left and right ends. [Explanation of symbols]

[0032] 1. Leveling barge 2 Wire 3H steel 4. Concrete 5 Earth removal plate 11 Main body 12 Tip 13 Claw part 15 Earth removal plate 20 Arm 21 One end of the arm 22 Other end of arm 30 Earth removal plate 31 Main body 31a Receiving surface 32 Cutting claw part 33 Rolling Department 33a Curved Surface 40 Pulley 50 Wire 51 One side of the wire 52 The other end of the wire 100 Leveling Barge P Tip position of cutting claw Q Space S: Bottom position of compacted area

Claims

1. A pair of left and right arms are attached to the left and right ends of the front side of the hull in the leveling direction so that one end side can rotate freely, and the other end side is located underwater. A blade that levels the bottom of the water is attached between the arms on the other end side. A wire extending from the rear side of the hull in the leveling direction has a tip fixed to the other end side of the arm or the blade, and the height position of the blade in the water can be adjusted by changing the length of the wire. The blade is a main body portion that is attached between the other ends of the pair of left and right arms so as to be rotatable relative to the arms and that has a receiving surface portion provided on a front surface that is a front side in the smoothing direction; a plurality of cutting claws provided at intervals in the left-right direction at a lower end of the receiving surface portion provided on the main body; A rolling part is provided at the rear lower part of the main body, has a curved surface protruding downward, and rolls the soil cut by the cutting claw part, The wires extend from the left and right rear sides of the hull in the leveling direction in correspondence with the pair of left and right arms, The tip of the wire is bifurcated, one of which is connected to the front upper part of the main body, and the other of which is connected to the rear upper part of the main body, Furthermore, one of the wires is connected to a position rearward of a receiving surface portion provided on the main body and higher than a position where the other of the wires is connected, and the other ends of the pair of left and right arms are connected forward of the receiving surface portion, A leveling barge characterized in that, when the receiving surface portion of the main body is in a vertical position, the tip position of the cutting claw portion is lower than the lowermost surface position of the compaction portion.

2. 2. The leveling barge according to claim 1, wherein the main body is inclined upward from the rear side in the leveling direction to the front side in the leveling direction.

3. A leveling barge as described in claim 1 or 2, characterized in that the cutting claw portion inclines downward from the rear side in the leveling direction to the front side in the leveling direction, and a space is provided between the cutting claw portion and the compaction portion.

Images