JPH0223612Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an asphalt pavement (repair) work vehicle such as a repaver used when regenerating the surface layer of a road surface.

For example, in the repairer shown in FIG. 4, the existing road surface is heated by the heater 2 while the traveling vehicle body 1 is running, and then the road surface is scraped up by the cutter 3, and then the scraped up road material (recycled material) is is stirred by the first screw 4 and spread on the road surface.
Level it with screed 5. Then, the new composite material in the hopper 6 is sent to a second screed 8 by a bar feeder (conveying device) 7, spread on the road material, and then spread over the road material by a second screed 9.

By the way, in the above repaver, since the cutter 3 is located below the bar feeder 7,
On the return path of the bar feeder 7, the composite material adhering to the bar feeder 7 falls onto the cutter 3, damaging or staining the cutter 3. Therefore, conventionally, a protective plate was provided between the cutter 3 and the bar feeder 7. However, since this protective plate was simply a plate fixed in place with bolts and nuts, although it could protect the cutter 3, the fallen composite material gradually accumulated on top of it. Furthermore, when removing the accumulated composite material, the protective plate had to be removed, resulting in extremely poor workability.

This invention was made in view of the above circumstances,
For asphalt pavement, where the cutter can be reliably protected from the composite material by the protective plate, and in addition, the composite material hardly accumulates on the protective plate, and even if it does, it can be removed very easily. The purpose is to provide work vehicles.

In order to achieve the above object, the present invention provides a protection plate that protects the cutter from the composite material between the cutter and the conveyance device, and attaches one end of the protection plate to the traveling vehicle body so as to be rotatable. At the same time, the other end is placed on the cutter, and the protection plate is configured to be tiltable by the vertical movement of the cutter. The protection plate is tilted at a predetermined angle so that the composite material can easily fall onto the road.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3. In the figures, reference numeral 10 denotes a pair of left and right protection plates provided between the cutter 3 and a pair of left and right bar feeders 7. Each protection plate 10 is provided with side plates 11 on its left and right side edges, and has a cylindrical member 12 at one end (rear end) 10a. The bolt 1 is inserted through a cylindrical pin receiver 13 that is fixed to the frame of 1 by welding or the like.
A pin 15 fixed by 4 is inserted,
This pin 15 allows each protection plate 10 to
It has a structure that allows it to rotate up and down around a. Further, the other end (front end) 10b of each of the protection plates 10 is a free end, and is placed on the frame of the cutter 3.

The cutter 3 is composed of a telescopic part 3a and a fixed part 3b, as in the conventional case, and can be moved up and down by a hydraulic cylinder (not shown) to be in a working state.
It is now considered to be in a stored state. Further, the bar feeder 7 is made up of a plurality of flight bars 7b attached to an endless feeder block chain 7a, and is caused to circulate in the direction of the arrow in FIG. 1 by a drive device.

In the asphalt paving work vehicle having the above configuration, the cutter 3 is lowered during paving work, but the protection plate 10 has one end 10a connected to the pin 15.
The other end 10b is rotatably supported by the frame of the traveling vehicle body 1, and the other end 10b is placed on the frame of the cutter 3 as a free end, so as the cutter 3 descends, the other end 10b tilts downward at a predetermined angle. do. Therefore, even if the composite material adhering to the feeder block chain 7a and flight bar 7b of the bar feeder 7 falls onto the protection plate 10,
The composite material falls onto the road under its own weight without being deposited on top of it. Furthermore, even if some of the composite material were to remain on it, since the protective plate 10 is slanted, the composite material can be easily brushed off from the side. There is no need to take the trouble to remove it.

Furthermore, when removing the protection plate 10 for equipment maintenance or the like, all that is required is to remove the bolt 14 and pull out the pin 15, making the work extremely simple.

However, in the above embodiment, the cutter 3
Although the protective plate 10 is provided on the top, a protective plate 16 may also be provided in the front position as shown in the figure to protect the heater 2 from the composite material.

As explained above, the asphalt paving work vehicle of the present invention is provided with a protection plate that protects the cutter from the mixture between the cutter and the mixture conveying device, and one end of this protection plate is connected to the It is rotatably attached to the traveling vehicle body, and the other end is placed on the cutter, so that the protection plate can be tilted by the vertical movement of the cutter, so that it is attached to the conveying device. Not only can the cutter be reliably protected from the mixed material, but also the mixed material hardly accumulates on the protective plate, and even if it does, it can be easily removed without removing the protective plate.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention. Figure 1 is a side view of the main parts, Figure 2 is a plan view of the same, and Figure 3 is a view taken in the direction of the - arrow in Figure 2. be. Moreover, FIG. 4 is a side view of the repaver. 3... Cutter, 7... Bar feeder (transport device), 10... Protective plate, 10a... One end, 10b
...the other end.

Claims (1)

[Scope of utility model registration request] In an asphalt paving work vehicle, the vehicle body is equipped with a vertically movable cutter and a mixed material conveying device disposed above the cutter, and the cutter is placed between the cutter and the conveying device to convey the mixed material. A protection plate is provided to protect the cutter from the vertical movement of the cutter, with one end of the protection plate rotatably attached to the traveling vehicle body and the other end placed on the cutter. An asphalt pavement work vehicle characterized by being configured to be tiltable by.