JPS5930002Y2 - bituminous material spreader - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spreader that uniformly spreads bituminous material when the road surface temperature is low.

Conventionally, when bitumen is spread on a road surface, bituminous material pressurized by a pump is dispersed by a jet nozzle and sprayed onto the road surface.

However, if the amount of bitumen sprayed is small and the road surface temperature is low, the fluidity of the sprayed bituminous material will drop instantaneously. Spray application was difficult.

This tendency is especially true for flagstones made from asphalt 1 and mixtures.
It is noticeable when applying seal coat to gutters etc.
There were inconveniences that made construction difficult.

In view of the above-mentioned circumstances, the present invention provides a bituminous material spreader that can be easily and uniformly distributed even when the temperature of the road surface on which the bituminous material is being spread is low. A bitumen jet nozzle is installed through the upper part of the hood, and a downwardly expanding cone is installed around this nozzle, and a burner is installed diagonally downward on the upper side of the hood to heat the jet nozzle piping. At the same time, the road surface before the bituminous material is spread and the surface of the bituminous material after being spread are heated.

The present invention will be explained in detail below with reference to the drawings.

1 and 2 show an embodiment of a bituminous material spreader according to the present invention, and reference numeral 1 in the figures indicates a hood.

This hood is shaped like a bowl with an open bottom and extends downward, and the tip of a handle 2 extending diagonally upward is attached to the side.

Further, a bitumen conduit 3 is attached to the upper center of the hood 1 so as to pass through the hood 1.

A nozzle 4 is attached to the tip of the conduit 3 inside the hood 1 to spray bituminous material downward.

A cone-shaped member 5 that surrounds the nozzle 4 and extends downward is attached to the nozzle 4.

Further, the conduit 3 is disposed along the handle 2 and is connected to a bitumen pressure pump (not shown) via a bitumen flow control valve 6.

Further, a burner 7 for heating the conduit 3 inside the hood 1 is attached to the upper portion of the hood 1 opposite to the portion where the handle is attached, facing diagonally downward.

A hose 8 for feeding fuel is connected to the burner 7, and the hose 8 is arranged along the handle 2 and is connected to a fuel cylinder (not shown) via a fuel regulating valve 9 that supplies the burner 7. ing.

In addition, notches 10 and 10 are provided on both sides of the lower edge of the hood 1 in the direction of the flame tip of the burner 7, and the edge of the hood 1 below the burner 7 is provided with a notch 10.10 that slightly protrudes downward from the edge and has a predetermined width. A rubber plate 11 is attached.

Next, the operation of the bituminous material spreader constructed as follows will be explained.

First, open the fuel control valve 9 to send fuel to the burner 7.
At the same time, the bituminous material control valve 6 is opened to blow out bitumen, and the spreader is gradually moved in the direction of the arrow.

At this time, the flame of the fuel gas hits the upper conduit of the nozzle 4 and heats the bitumen and raises the temperature of the entire nozzle 4, so that bituminous material does not adhere to the periphery of the nozzle 4.

In addition, the burning gas that has passed above the cone member 5 hits the road surface A, blowing away dirt and dust scattered on the surface to both sides through the hood notch 10.
Heat the pieces.

Since the bitumen is spread on the thus cleaned and heated road surface A, it has excellent adhesion, and the minute bituminous material particles melt and spread, resulting in a uniform state even when a small amount is spread.

Further, a portion of the combustion gas hits the cone member 5, is changed direction, and heats the road surface B portion.

Since bitumen has already been sprinkled on part B, the bitumen surface is heated.

As a result, even if bitumen remains scattered on the road surface in the form of minute pillars when it is sprayed, it will be completely dissolved in part B, forming a uniform film of bituminous material on the road surface. I can do it.

Furthermore, after that, the excess bitumen is leveled off by the rubber plate 11 to the deficient areas, so bitumen is uniformly applied to the road surface over which the present device passes.

By using a burner in this way, it is possible to uniformly spread a small amount of bitumen.

As mentioned above, the bituminous material spreader according to the present invention can easily and uniformly form a bituminous material film that adheres to the low-temperature road surface by using a burner, which simplifies the work and spreads the bituminous material. This brings many benefits such as improved unit consumption.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of a bituminous material spreader according to the present invention. Figure 1 is a side view of the spreader, and Figure 2 is a side view of the spreader.
The figure is a vertical cross-sectional side view of the hood portion. 1...Hood, 2...Handle, 3...
...Bitumen conduit, 4...Nozzle, 5...
・Cone-shaped member, 6...Bitumen flow rate adjustment valve,
10...Hood notch, 11...Rubber plate, A...Road surface before bitumen spraying, B...
Road surface after bitumen spreading.

Claims (1)

[Scope of utility model registration request] A spout nozzle is attached to the inner upper part of the hood which is widened and open at the bottom, and is surrounded by a cone that spreads downward; A bituminous material spreading machine, which is equipped with a burner that heats a part of the piping of a spouting nozzle, and disperses and heats the road surface before spreading and the upper part of the bitumen material after spreading.