JPS586001B2 - Leveling board for asphalt finisher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a leveling plate for an asphalt finisher, in particular, it is possible to adjust the paving width of the leveling plate.

Generally, an asphalt finisher allows a predetermined amount of asphalt stored in a hopper to fall to the ground, presses this asphalt with a vibration screed, and then
Pave automatically.

As shown in Figures 1 and 2, the vibration screed 3 applies approximately 10 tons of pressure to the asphalt 2 that has been dropped onto the ground 1, and the asphalt 2 directly below the screed has a thickness of approximately 10 cm. Pressed.

Leveling plates 4 are located on both sides of this screed 3, which allows the asphalt 5 to be fed to both sides of the screed 3.
Flatten it to a thickness of about 12 cm.

This flattened portion 5 is pressed by a roller in a subsequent process to have a thickness comparable to that of the asphalt 2.

The leveling plate 4 is set to have a length approximately equal to half the length l of the screed 3, and is sent outward by a desired length by a hydraulic mechanism (not shown).

However, according to the leveling plate having such a configuration, its length is about half that of the screed 3, so even if the leveling plate 4 is made to protrude beyond the screed end to the maximum extent, its total length L is about 4l. It is impossible to extend it further.

Furthermore, although paved roads are usually provided with sloped surfaces at their ends, this sloped surface has the disadvantage that it cannot be formed using conventional leveling plates.

An object of the present invention is to provide a leveling plate for asphalt finishers that allows the pavement processing width to be extended more than that of conventional leveling plates, and also allows formation of sloped surfaces at the edges of paved roads. will be described in detail below using examples.

3 and 4 are a plan view and a front view showing an embodiment of the leveling plate for asphalt finisher according to the present invention, and in the same figure, 6 is the asphalt finisher main body S.
The screed is a vibration screed that applies vibration pressure to the asphalt falling from a hopper (not shown) to solidify it.A leveling plate 7 is located above the screed 6 and is extendable by a hydraulic mechanism (not shown).

An extended leveling plate part 9 is provided at the end of the leveling plate 7 via a hinge part 8.

The extended leveling plate part 9 includes opposing plates 10 that are integral with the hinge part 8 and face each other, a vertical plate 11 with about 1/3 interposed in the gap between the opposing plates 10, and an opposing plate 11 of the vertical plate 11. It consists of a shaft 12 whose lower portion on the side of the plate 10 is pivotally connected to the opposing plate 10, and an operating handle 13 which rotates the vertical plate 11 using the shaft 12 as a fulcrum.

The operating handle 13 is rotatably held by a holding frame 14,
The entire lower part is a threaded part 15, and the threaded part 15
is screwed into a female screw portion 17 fixed to the horizontal frame 16, and both ends of the horizontal frame 16 are pivotally connected to the ends of rotating frames 18 and 19.

One end of the rotating frame 18 is pivotally attached to the vertical plate 11 with a screw 20.
One end of the rotating frame 19 is pivotally attached to the holding frame 10.

In this case, a slit 21 is provided in the pivotally mounted portion of the rotating frame 18 by the screw 20, and the rotating frame 18 can be moved to the left or right to some extent.

A tongue piece 23 having a hole 22 protrudes from the flat portion of the opposing plate 10, and a bent lip of an adjustment rod 24 penetrates into the hole 22.

The bent portion of the other end of the adjustment rod 24 penetrates into one of the holes 26 of the adjustment plate 25 that protrudes outward from the asphalt finisher main body S.

In such a configuration, if the width of the paved road to be treated with asphalt is wider than the maximum extension width L of the leveling board,
The extended leveling plate part 9 is rotated, the extended leveling plate part 9 is positioned on the extension line of the leveling plate 7, and the adjustment rod 24 is fixed in the hole 261 located on the outside.

As a result, the portion to be paved becomes longer by the length m of the extended leveling plate portion 9.

In addition, by setting the extension leveling plate part 9 at a position inclined at about 45 degrees with respect to the leveling plate and fixing the adjustment rod 24 to the hole 262 in the middle part, the length of the part to be paved can be adjusted in the above case. Can be made shorter.

In addition, when the length of the extended leveling plate part 9 is unnecessary, rotate the extended leveling plate part 9 at right angles to the leveling plate 7, and
is fixed in the inner hole 263.

In addition, when forming a slope on the side of a paved road, rotate the handle 13, pull up the horizontal frame 16, and move the vertical plate 1
1 is rotated outward about the shaft 12, and the vertical plate 11
The lower edge of the is sloped toward the road surface.

As a result, the asphalt leveled at this lower edge becomes an inclined surface.

As explained above, according to the present invention, the extended leveling plate part 9 is pivotally attached to the end of the leveling plate so as to rotate in a direction parallel to the road surface, and the extended leveling plate part 9 is connected to the leveling plate. Near the extension line of 7,
Since it is possible to lock the surface at a point substantially perpendicular to the leveling board 7, by appropriately selecting the locking point, the paving width can be made longer than before.

Therefore, in order to treat untreated pavement sections,
The asphalt finisher was forced to run several times, but according to the present invention, such unnecessary operations can be reduced by widening the extended leveling plate section to widen the processing width.

In addition, since the extended leveling plate part can be rotated in the direction of the road surface, it is possible to form the sloped surface at the end of the paved road, and the conventional manual process of forming the sloped surface can be omitted.

[Brief explanation of drawings]

1 and 2 are a plan view and a front view showing an example of a conventional leveling board for an asphalt finisher, and FIGS. 3 and 4 are an embodiment of a leveling board for an asphalt finisher according to the present invention. FIG. 2 is a plan view and a front view showing an example. 6...Screed, 7...Asphalt finisher body, 8...Hinge part, 9...
...Extended leveling board section, 10... Opposing board, 11
... Vertical plate, 12 ... Axis, 13 ...
··handle.

Claims (1)

[Claims] 1 Asphalt Finisher - A leveler for an asphalt finisher having an extended leveling plate part 9 in the form of a vertical plate provided at the end of a leveling plate 7 provided so as to be able to extend outwardly with respect to the asphalt finisher body. In the plate, the extended leveling plate part 9 is provided at the outer end of the leveling plate 7 via a hinge part 8, and includes a plate material 10 that is rotatable in a direction parallel to the road surface and a plate material located outside of this plate material. a vertical plate 11, a shaft 12 that pivots the lower part of the vertical plate 11 on the plate material 10 side to the plate material 10, and a shaft 12 that rotates the vertical plate 11 in a direction perpendicular to the road surface using the shaft 12 as a fulcrum. A leveling board for an asphalt finisher equipped with an operation handle.