JP6983392B2 - Rolling machine with groove forming tool and groove forming tool - Google Patents

Description

The present invention relates to a groove forming tool for forming a groove in a civil engineering material such as crushed stone or an asphalt mixture, and a compaction machine provided with the groove forming tool.

Conventionally, rolling machines such as rammers and plate compactors for compacting civil engineering materials such as crushed stone and asphalt mixture have been known. A compaction plate is attached to the main body of the compaction machine so as to face the ground. A vibration mechanism is provided in the main body, and by vibrating the compaction plate, the surface of crushed stone or asphalt mixture laid on the ground is vibrated and hit to compact them.

Patent No. 5056380

The purpose of the conventional compaction machine is to compact the laying surface of crushed stone, asphalt mixture, etc. to make it flat. However, depending on the laying place, it may be desirable to provide a groove or the like for drainage on the laying surface. In such a case, a separate concrete gutter must be installed, which leads to an increase in cost and an increase in working time.

An object of the present invention is to provide a groove forming tool capable of forming a groove on a laying surface at a low cost and in a short time, and a compaction machine provided with the groove forming tool.

The present invention has a first invention and a second invention.
The first invention is a groove forming tool that can be attached to a compaction machine provided with a vibrating means for generating vibration, wherein the groove forming tool is attached to a mounting surface facing the compaction machine and the mounting surface. The forming tool main body includes a forming tool main body having an opposed rolling compaction surface, and the forming tool main body includes a convex portion provided on the rolling compaction surface and a blade standing up from the mounting surface, and the blade is a traveling of the compaction machine. It is characterized by being inclined with respect to a direction.

A sharpened portion located at the tip of the forming tool main body in the first invention is further provided, and the sharpened portion has a proximal portion adjacent to the main body and a distal portion located on the opposite side thereof, and at least. The distal portion may protrude from the compaction surface to the opposite side of the mounting surface.

The second invention is a rolling machine having a machine body provided with a vibrating means for generating vibration and a rolling compact plate to which the vibration generated by the vibrating means is transmitted, and is attached to the rolling machine. The groove forming tool includes a forming tool main body having a mounting surface facing the compaction machine and a rolling compaction surface facing the mounting surface, and the forming tool main body comprises the rolling tool main body. A convex portion provided on the compression surface and a blade rising from the mounting surface are provided, and the blade is characterized in that it is inclined with respect to the traveling direction of the compaction machine .

According to the present invention, since a convex portion is provided on the compaction surface of the groove forming tool, it is not necessary to separately use a concrete gutter or the like, and the groove can be formed on the laying surface at low cost and in a short time.

The side view of the compaction machine provided with the groove forming tool which concerns on 1st Embodiment of this invention. The plan view of the groove forming tool which concerns on embodiment of this invention. FIG. 2 is a sectional view taken along line III-III. The same figure as FIG. 3 which concerns on the 2nd Embodiment of this invention. The side view of the groove forming tool which concerns on 3rd Embodiment of this invention.

FIG. 1 shows an example of a compaction machine 1 provided with a groove forming tool 2 according to the first embodiment of the present invention. As the compaction machine 1, a plate compactor having a machine body 11 and a compaction plate 12 will be described as an example. 2 and 3 omit the compaction machine 1 and show only the groove forming tool 2.

The compaction machine 1 is provided with a vibration means (not shown) on the machine body 11, and the vibration from the compression means is transmitted to the compaction plate 12 by driving the compaction machine 1, and the compaction machine 1 moves to the left side of the drawing. proceed. Since the compactor plate 12 is usually flat, the ground can be compacted flat by vibrating while advancing. In general, the same compaction machine 1 can be used for both the compaction of crushed stone and the compaction of asphalt mixture.

The compaction plate 12 has an upper surface 13 facing the machine main body 11 and a lower surface 14 on the opposite side thereof, and the lower surface 14 is flattened. The groove forming tool 2 can be attached to the rolling plate 12 of the rolling machine 1. The groove forming tool 2 includes a forming tool main body 20 having a mounting surface 21 facing the compaction plate 12 and a rolling compaction surface 22 facing the mounting surface 21. In the forming tool main body 20, the direction extending in the traveling direction of the compaction machine 1 is defined as the lateral direction X, and the direction orthogonal to this is defined as the vertical direction Y. The dimension of the forming tool main body 20 in the horizontal direction X is larger than the dimension in the vertical direction Y. The rolling surface 22 of the forming tool main body 20 is provided with convex portions 23A and 23B that rise toward the ground.

In this embodiment, the convex portion 23A and the convex portion 23B are provided apart from each other in the lateral direction X.
The ends of the convex portion 23A and the convex portion 23B in the lateral direction X are closed to prevent civil engineering materials such as crushed stone from entering the inside thereof. Between the convex portions 23A and the convex portions 23B, the compaction surface 22 is flat, and substantially this surface does not come into contact with the ground, and there is no compaction on this surface.

Referring to FIG. 3, the cross section of the convex portion 23A is semicircular as a whole, with the mounting surface 21 being flat and the compaction surface 22 forming an arc. The convex portion 23B also has the same shape as the convex portion 23A.

The groove forming tool 2 includes a blade 30 that stands up from the mounting surface 21 of the forming tool main body 20 on the side opposite to the ground, that is, on the rolling machine 1 side. That is, the blade 30 is a plate-shaped member extending substantially perpendicularly from the mounting surface 21 toward the compaction machine 1, and is inclined with respect to the traveling direction of the compaction machine 1, that is, the lateral direction X of the groove forming tool 2. do.

In particular, referring to FIG. 2, the forming tool main body 20 has a center line 3 that bisects the dimension in the vertical direction Y, and in this embodiment, the blade 30 is attached to the blade support plate 33 and with respect to the center line 3. It is provided with a symmetrical first blade 31 and a second blade 32. The first blade 31 and the second blade 32 come into contact with each other at their tips 31A and 32A, and incline toward the rear ends 31B and 32B so that their separation distance increases. That is, the first blade 31 and the second blade 32 have a so-called gable shape. The first blade 31 and the second blade 32 are preferably sized so that the rear ends 31B and 32B extend in the vertical direction Y of the compaction machine 1. Further, at the rear ends 31B and 32B, a part thereof extends substantially parallel to the center line 3.

The forming tool main body 20 includes a sharpened portion 40 located at its tip 20A. The sharpened portion 40 has a proximal portion 41 adjacent to the forming tool main body 20 and a distal portion 42 located on the opposite side thereof, and at least the distal portion 42 is located on the opposite side of the mounting surface 21 from the compaction surface. (See Fig. 1). That is, the distal portion 42 projects toward the ground from the lower end of the drawing of the convex portion 23. The sharpened portion 40 has a smaller dimension than the dimension of the forming tool main body 20 in the lateral direction X.

The groove forming tool 2 as described above is attached to the compaction plate 12 of the compaction machine 1 by the fastening means 50. Bolts and nuts can be used as the fastening means 50, and the lower surface 14 of the compaction plate 12 and the mounting surface 21 of the forming tool main body 20 face each other and are fixed. More specifically, on the front side of the traveling direction, that is, on the left side of the lateral direction X in FIGS. 1 and 2, two shaft holes 24 having a diameter slightly larger than the axis of the bolt and the rear side of the traveling direction, that is, the right side of the lateral direction X. Is formed with two elongated holes 25 in which the shaft of the bolt can slide in the lateral direction X. By forming the elongated hole 25, the mounting position can be adjusted, and the groove forming tool 2 can be mounted on the rolling compact plates 12 of different sizes.

In the groove forming tool 2 as described above, a metal such as iron can be used as the material of the forming tool main body 20, the convex portion 23A, the convex portion 23B, the blade 30, and the sharpened portion 40.

An example of using the compaction machine 1 provided with the groove forming tool 2 as described above will be described. For example, when laying asphalt on the ground, crushed stone is laid and compacted, and then asphalt is laid on it and further compacted. In this embodiment, after the crushed stone is laid on the ground, the crushed stone is pre-compacted by using the compaction machine 1 to which the groove forming tool 2 is not attached. That is, the compaction plate 12 of the compaction machine 1 is opposed to the crushed stone and compacted to flatten the laying surface. After rolling the crushed stone flat in this way, the groove forming tool 2 is attached to the rolling plate 12 of the rolling machine 1, and the rolling machine 1 is driven to re-run the laying surface to form a groove on the laying surface. Form. It is desirable that a groove in which the convex portions 23A and 23B are accommodated is formed in advance at the rolling compaction start position of the compaction machine 1. Further, a roller or the like other than the compaction machine 1 can be used for the pre-compacting.

Since the sharpened portion 40 is provided on the forming tool main body 20, when the compaction machine 1 is run as described above, the sharpened portion 40 advances in the traveling direction while loosening the compacted crushed stone. The loosened crushed stone is lifted above the sharpened portion 40 and moves along the first blade 31 and the second blade 32 to both sides in the vertical direction Y. Therefore, unnecessary crushed stone can be smoothly moved along the first blade 31 and the second blade 32. Since the rear ends 31B and 32B of the first blade 31 and the second blade 32 are located outside the compaction machine 1, the crushed stone is discharged to both outsides in the traveling direction of the compaction machine 1 and the traveling of the compaction machine 1 progresses. It doesn't get in the way. It is desirable to remove the crushed stones discharged to both outer sides of the compaction machine 1 or the crushed stones adhering to the blade when they have accumulated to some extent.

In this embodiment, the blade 30 includes a first blade 31 and a second blade 32, which may be composed of only one blade. That is, it may have a so-called cantilever shape. Even in that case, it is preferable to arrange the crushed stone so as to be inclined with respect to the center line 3 of the forming tool main body 20 so that the loosened crushed stone is smoothly discharged.

Further, when the compaction machine 1 is advanced, the convex portion 23A of the forming tool main body 20 is positioned on the loosened crushed stone portion and is compacted. That is, the laying surface is rolled into the same shape as the convex portion 23A, and a concave portion is formed on the laying surface. After rolling at the convex portion 23A in the front in the traveling direction, the compaction is further performed at the convex portion 23B at the rear. By providing the convex portions at X distances in the lateral direction in this way, the laying surface is pressed twice, and the concave portions can be reliably formed on the laying surface. Further, by providing the convex portions apart in this way, the rolling compaction area can be reduced as compared with the case where one convex portion that is not separated is provided, and the contact pressure of the respective convex portions 23A and 23B is increased. be able to.

In the convex portions 23A and 23B, the dimension D2 from the mounting surface 21 to the tip of the convex portion 23B can be made larger than the dimension D1 from the mounting surface 21 to the tip of the convex portion 23A. By increasing the dimension D2 of the rear convex portion 23B in this way, the pressure at the rear convex portion 23B can be further increased. In this embodiment, the two convex portions 23A and 23B are provided apart from each other in the lateral direction X, but the number is not limited to this. Only one convex portion may be provided, or three or more convex portions may be provided.

By advancing the compaction machine 1 as described above, recesses are continuously formed on the laying surface, and these can be used as drainage ditches. Since the drainage groove can be created only by advancing the compaction machine 1, the work is easy and short. Further, since the laying surface once compacted is hard and compacted, for example, if it is attempted to be dug up manually, it will be hard work, but it can be reduced by using the groove forming tool 2 of the present invention. To. Further, since it is not necessary to separately use a concrete gutter or the like, the cost can be reduced accordingly.

In the above, the rolling compaction and grooving in crushed stone have been described, but the same applies to the rolling compaction and grooving of asphalt. However, it is desirable that the size of the convex portions 23A and 23B is smaller than that of the crushed stone groove forming tool. By changing the sizes of the convex portions 23A and 23B in this way, it is possible to form a uniform groove that does not easily collapse and is beautiful in appearance.

In this embodiment, a shaft hole 24 for supporting the fastening means 50 is provided in front of the compaction machine 1 in the traveling direction, and an elongated hole 25 is provided in the rear, but these may be reversed. However, considering the possibility that crushed stone, asphalt, etc. loosened by the sharpened portion 40 may enter the long hole 25, it is desirable to attach the long hole 25 to the rear where the distance from the sharpened portion 40 is long.

In this embodiment, before rolling by the rolling machine 1 to which the groove forming tool 2 is attached, pre-rolling is performed by the rolling machine 1 to which the groove forming tool 2 is not attached to flatten the rolling surface. It is not an essential process. In particular, in groove formation on asphalt, it is preferable to roll with a rolling machine 1 to which a groove forming tool 2 is attached without prior rolling. This is because pre-rolling may make it difficult to form a groove.

FIG. 4 shows the groove forming tool 2 in the second embodiment, and the cross-sectional shapes of the convex portions 23A and 23B are different from those in the first embodiment. In this embodiment, the shapes of the convex portions 23A and 23B are made to be substantially trapezoidal. That is, the mounting surface 21 can be used as the lower base, and the rolling surface 22 can be formed into a substantially trapezoidal shape such that the upper base and legs are formed. Since most of such a substantially trapezoidal shape is linear, there is an advantage that processing at the time of forming the convex portions 23A and 23B is easy.

FIG. 5 shows the groove forming tool 2 in the third embodiment, and includes a watering means 60 for asphalt. The sprinkling means 60 includes a sprinkling hose connecting portion 61 provided on the mounting surface 21 of the forming tool main body 20, a water storage tank 62 for storing water supplied from the sprinkling hose connecting portion 61, and water sprinkling from the water storage tank 62 to the laying surface. A watering hole 63 is provided.

The sprinkler hose connection portion 61 is located behind the blade 30 in the traveling direction so that the asphalt loosened by the sharpened portion 40 does not collide. Since the compaction machine 1 generally includes a watering hose, water can be supplied to the water storage tank 62 by connecting the watering hose to the watering hose connecting portion 61. The water storage tank 62 can be provided inside the hollow forming tool main body 20. The sprinkler hole 63 can be formed by drilling a hole at the tip 20A of the forming tool main body 20.

By providing the watering means 60 as described above, it is possible to prevent the asphalt piece from adhering to the groove forming tool 2. Further, since it can be partially combined with the watering means provided in the compaction machine 1, it is possible to realize low cost and low space as compared with the case where it is separately provided.

In this embodiment, the heights of the proximal portion 41 and the distal portion 42 of the sharpened portion 40 are substantially the same. In the first embodiment, the distal portion 42 is lowered in the drawing as compared with the proximal portion 41, but the heights thereof may be equal as in this embodiment.
The blade 30 can adjust the separation distance of the groove forming tool 2 with respect to the forming tool main body 20. For example, the blade 30 may be fixed to the forming tool main body 20 with bolts and nuts, and the position of the blade 30 may be adjusted according to the fixing position of the nut. By making the position of the blade 30 adjustable in this way, it is possible to even out the surface of the crushed stone or the asphalt mixture at the lower end of the blade 30.

1 Rolling machine 2 Groove forming tool 11 Machine body 12 Rolling plate 20 Forming tool body 20A Tip 21 Mounting surface 22 Rolling surface 23A Convex part 23B Convex part 30 Blade 31 First blade 32 Second blade 40 Sharp part 41 Proximal edge 42 Distal edge 60 Sprinkling means 61 Sprinkling hose connection 62 Water storage tank 63 Sprinkling hole

Claims (3)

A groove forming tool that can be attached to a compaction machine equipped with a vibrating means for generating vibration.
The groove forming tool includes a forming tool main body having a mounting surface facing the compaction machine and a rolling compaction surface facing the mounting surface.
The forming tool main body includes a convex portion provided on the rolling compaction surface and a blade standing up from the mounting surface.
The blade is a groove forming tool characterized in that it is inclined with respect to the traveling direction of the compaction machine. Further provided with a sharpened portion located at the tip of the forming tool body,
The sharpened portion has a proximal portion adjacent to the main body and a distal portion located on the opposite side thereof.
The groove forming tool according to claim 1, wherein at least the distal portion projects from the compaction surface to the opposite side of the mounting surface. A rolling machine having a machine body provided with a vibrating means for generating vibration and a rolling compact plate for transmitting the vibration generated by the vibrating means.
A groove forming tool that can be attached to the compaction machine is provided.
The groove forming tool includes a forming tool main body having a mounting surface facing the compaction machine and a rolling compaction surface facing the mounting surface.
The forming tool main body includes a convex portion provided on the rolling compaction surface and a blade standing up from the mounting surface.
The blade is a compaction machine characterized in that it is inclined with respect to the traveling direction of the compaction machine.

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