JPH0330411Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention is an asphalt paving device, particularly an asphalt mixture in the overlapping part of a newly constructed pavement formed over the upper side edge of the pavement. Regarding asphalt finishing attachments for eliminating.

(Prior art) Generally, in asphalt finishers,
Asphalt mixture discharged from between the hopper and the screed is applied to the screed 5 as a new paved surface 4 having an overlapping portion 3 at the upper side edge of the paved surface 2 adjacent to the paved surface 1, as shown in FIG. It is beginning to form. In this case, the width l ₁ of the screed 5 is formed larger than the width l ₂ of the paving surface 1, and the asphalt is formed so that the width l ₃ of the overlapped portion 3 is about 2 to 3 cm by the end plates 6 at both ends of the screed 5. The spread of the composite material 7 is regulated. Then, a worker manually removes the overlapping part 3 of the new paved surface 4 to the new paved surface 4 side using a broom, plate, etc., and then finishes it with a rolling pressure roller to separate the paved surface 2 and the new paved surface 4. This was done to prevent dents from forming on the boundary line.

(Problems to be solved by the invention) In the above-mentioned conventional technology, the overlapping portion 3 of the newly constructed pavement surface 4 was manually removed by the worker using a broom or the like, which resulted in poor work efficiency and an increase in the number of workers. Furthermore, there is a problem in that the overlapping portion 3 cannot be removed cleanly using a broom or the like, and a jagged boundary line 8 is likely to be formed between the paved surface 2 and the newly constructed paved surface 4, as shown in FIG.

Therefore, the object of the present invention is to provide an asphalt paving device that improves work efficiency and can finish the boundary line between the paved surface and the newly constructed paved surface flat without any steps.

[Structure of the idea]

(Means for Solving the Problems) In the present invention, a rotating brush rotatably driven by a motor provided at the rear of the screed is provided so as to be inclined with respect to the traveling direction of the asphalt finisher.

(Function) As the asphalt finishing progresses, the overlapping part of the asphalt mixture is removed by the rotation of the rotating brush attachment, and the boundary line between the existing pavement surface and the new pavement surface is created by the subsequent finishing of the compaction roller. It is formed flat with no steps.

(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, 11 is an asphalt finisher, and while the traveling vehicle body 12 is running, the asphalt mixture 14 fed into the hopper 13 is sent to the rear spretting screw 16 by a bar feeder 15. Here, the material is spread uniformly from side to side and discharged, and is leveled with a screed 17, and the width of the screed 17 is equal to the paving surface 18.
The width of the screed 17 is larger than that of the screed 17, and end plates 19 are provided at both ends of the screed 17. 20
is a rotating brush rotatably driven by a motor 21 mounted on both ends of the rear part of the screed 17, and is provided with an elevating mechanism 22 and an inclination angle adjusting mechanism 23. This elevating mechanism 22 is configured such that a base 22a provided at both ends of the rear portion of the screed 17 can be raised and lowered along a guide rail 26 by rotation of a screw rod 25 with a handle 24 attached to the base 22a. A motor 21 and a transmission 27 are disposed on the base 22a, and a metal rotating brush 2 is attached to a drive shaft 28 of the transmission 27 connected to the motor 21.
0 is attached. The tilt angle adjustment mechanism 23
The motor 21, the transmission 27, and the rotary brush 20 move together in the horizontal direction around a shaft support 29 that pivotally supports the base of the motor 21 and the base 22a. It is connected so as to be able to slide along a long hole 22b drilled in the base 22a, and is configured to fix the bolt 30 with a nut 30a in an inclined state with respect to the advancing direction of the asphalt finisher 11. .

With this configuration, when the asphalt finisher 11 moves forward, the asphalt mixture 14 spread out on the paving surface 18 and discharged is spread by the end plate 19 and is spread evenly by the screed 17 while the width is regulated. The existing paved surface 3 is placed on the upper side edge of the existing paved surface 31 adjacent to the surface 18.
A new paved surface 33 having an overlapping portion 32 with 1 is formed. Thereafter, the overlapping portion 32 is removed to the new paved surface 33 side by the rotation of the rotating brushes 20 attached to both ends of the screed 17, and the paved surface 31 and the newly constructed paved surface 33 are finished by the compacting rollers 34. The boundary line 35 is finished flat so that there are no steps. In this case, since the rotating brush 20 is installed obliquely with respect to the advancing direction of the asphalt finisher 11, the overlapping portion 3
Asphalt mixture 14 constituting 2 is gradually removed from the outer end side to the inner end side by the rotation of the rotating brush 20. If this rotating brush 20 is parallel to the advancing direction of the asphalt finisher 11, the asphalt mixture 14 will be caught on the end of the rotating brush 20 and cannot be removed. The inclination angle, rotation speed, and height of the rotating brush 20 are determined by the thickness of the overlapping portion 32,
It may be adjusted as appropriate depending on the width or the traveling speed of the asphalt finisher 11.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the elevating mechanism, inclination angle adjusting mechanism, and rotational speed adjusting means for the rotating brush are not limited to those in the above embodiments, and any appropriate means may be selected.
Further, the rotating brush may be attached directly to the screed, or may be attached indirectly via another member so as to be located at both ends of the rear part of the screed.

[Effect of idea]

In this invention, a rotating brush is installed at the rear of the screed of the asphalt finisher to remove the asphalt mixture from the overlapping part of the new paving surface formed over the upper side edge of the existing paving surface to the new paving surface side. Since it is connected to be rotationally driven by a motor and is installed at an angle with respect to the direction of movement of the asphalt finisher, the boundary line between the existing pavement surface and the new pavement surface can be efficiently flattened to avoid any differences in level. We can provide asphalt paving equipment that can finish

[Brief explanation of the drawing]

Figure 1 is the overall front view, Figure 2 is the same plan view, and Figure 3 is the overall front view.
The figure is a perspective view of the main parts, Figure 4 is a sectional view showing the operating state, Figure 5 is a plan view of the same, Figure 6 is a sectional view showing the finished state, Figure 7 is a schematic explanatory diagram, and Figure 8 is FIG. 2 is a plan view showing a conventional example. 11... Asphalt Finish, 14...
Asphalt composite material, 17...Screed, 18...
...Paved surface, 20...Rotating brush, 21...Motor, 31...Paved surface, 32...Overlapping portion, 33...
...Newly installed paved surface.

Claims (1)

[Scope of utility model registration request] A motor installed at the rear of the screed of the asphalt finisher rotates a rotating brush to remove asphalt mixture from the overlapping part of the new pavement surface, which is formed over the top of the side edge of the existing pavement surface, toward the new pavement surface. An asphalt paving device characterized in that it is connected to be driven and is installed at an angle with respect to the traveling direction of an asphalt finisher.