JP2000273818A - Liquid spraying device for road surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid spraying device for road surface capable of spraying a bitumen material such as asphalt and asphalt emulsion and other liquid material for pavement uniformly up to an end part of construction width without causing unevenness. SOLUTION: This spray nozzle row consists of a plurality of main spray nozzles 2 (2-1, 2-2, 2-3) arranged linearly. A plurality of main spray nozzles 2 constituting the spray nozzle row have a spray nozzle row arranged in such a way that spray regions of a liquid material from adjacent main spray nozzles 2 are mutually overlapped double or more when viewed from the horizontal direction orthogonal to row direction of the spray nozzle row and at least one spray nozzle for end part T which is positioned in at least one end part of the spray nozzle row and differs from the main spray nozzles 2 in injection angle and/or mounting angle and/or mounting height.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road surface liquid spraying device, and more particularly to a road surface liquid spraying device capable of uniformly spreading a pavement liquid material such as a binder.

[0002]

2. Description of the Related Art When performing road pavement, a bituminous material such as asphalt or asphalt emulsion may be sprayed on a road surface as a primer or a binder.
In spraying these liquid materials on the road surface, for example, a work vehicle such as an asphalt distributor is used to spray the liquid material on the road surface. Work vehicles such as asphalt distributors are usually provided with a plurality of spray nozzles arranged linearly in a direction orthogonal to the traveling direction of the work vehicle. , A liquid material is ejected from and sprayed on the road surface. It is desirable that the spraying of such a liquid material is performed uniformly. Therefore, conventionally, the spraying characteristics of a plurality of spray nozzles to be used are made as uniform as possible, or the spraying areas from adjacent spray nozzles partially overlap each other. Attempts have been made to counteract variations in the characteristics of individual spray nozzles, for example.

For example, as shown in FIG. 7, a plurality of spray nozzles 2-1 and 2 attached to a spray bar 1 are provided.
, -2, 2-3, ... are the respective injection patterns 3-
Are arranged so as to overlap each other by half. That is, as shown in the lower part of FIG. 7 as viewed from above, a plurality of spray nozzles 2-1 and
2-2, 2-3,... Scatter areas 4-1 and 4-
.. Are overlapped with each other doubly when viewed from a horizontal direction orthogonal to the longitudinal direction of the spray bar 1. For example, in the lower part of FIG. 7, in a region indicated by reference numeral D1, when viewed from a horizontal direction orthogonal to the longitudinal direction of the spray bar 1, that is, a direction indicated by an arrow A,
A half area of the spray area 4-1 and a half area of the spray area 4-2 overlap each other, and spraying is performed while the spray bar 1 moves in a horizontal direction orthogonal to the longitudinal direction of the spray bar 1. Thereby, double spraying is performed on the area D1. Similarly, in the area D2, the scatter area 4-2
And 4-3 overlap by half, and a double spraying is also performed. The same applies to D3 and D4. However, for the region S located at the end, the spray nozzle 2-1 is used.
Only a single spraying is performed. As a result, in the region S, the liquid material is sprayed only about half as compared with the other regions, resulting in an extremely non-uniform spray state with a small spray amount.

[0004] As described above, in the conventional road surface liquid spraying apparatus, the spraying areas from the spray nozzles overlap each other in order to perform uniform spraying. However, at the end of the row of spray nozzles, a very uneven distribution results. Until now, the non-uniformity of the spray amount at the end of such a spray nozzle row has been neglected because it is the end compared to the entire spray area and the area is relatively narrow. For example, when bitumen material such as asphalt or asphalt emulsion is sprayed as a primer or a binder as a liquid material, the amount of the primer or the binder is insufficient at the end of the construction area. For,
The bonding strength between the mixture and aggregates spread over it and the lower road surface will be weaker than in other parts, and the resulting pavement will have poor durability in the end area of the construction width There is. In particular, for example, in a case where a relatively small amount of binder is sprayed on a road surface per unit area, such as a spraying surface treatment method, and an aggregate is sprayed thereon to form a surface treatment layer. Since the aggregate is bonded to the road surface by the binder scattered on the road surface, if there is uneven distribution of the binder and there is a portion where the amount of the binder is insufficient in the construction width end region, the In some parts, the bonding force between the aggregate and the road surface is weakened, and the aggregate may be scattered by traffic of a vehicle or the like, and the constructed surface treatment layer may be destroyed.

[0005] In addition to the above-described spraying type surface treatment method, even when spraying a normal primer or the like, it is possible to obtain a spray with high uniformity as a whole without ignoring the unevenness at the end of the spray area. It would be desirable if it could be realized, but there has been no road surface liquid spraying device that can realize uniform spraying even at the end of the working width with a simple device.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and is intended to apply bituminous materials such as asphalt and asphalt emulsion and other liquid materials for pavement. It is an object of the present invention to provide a road surface liquid spraying device that can spray evenly and evenly at an end portion of a width.

[0007]

Means for Solving the Problems As a result of studies conducted by the present inventors to solve the above-mentioned problems, the spray nozzles formed of a plurality of spray nozzles for spraying a liquid material are further arranged outside. By providing at least one end spray nozzle having a different spray angle and / or mounting angle and / or mounting height, uniform spraying can be achieved with a relatively simple device even at the end of the working width. We have completed the present invention.

That is, the present invention relates to a spray nozzle array comprising a plurality of main spray nozzles arranged in a straight line, wherein the plurality of main spray nozzles constituting the spray nozzle array are adjacent main spray nozzles. Spray nozzle rows arranged such that the spray area of the liquid material from the nozzles overlaps at least two times when viewed from a horizontal direction orthogonal to the row direction of the spray nozzle rows, and at least one end of the spray nozzle rows Located in the main spray nozzle
The object is achieved by providing a road surface liquid spraying device having at least one end spray nozzle having a different spray angle and / or mounting angle and / or mounting height.

As described above, the present invention is directed to a spray nozzle array including a plurality of main spray nozzles arranged in a straight line, and the plurality of main spray nozzles constituting the spray nozzle array are adjacent to each other. A road surface liquid spraying device having a spray nozzle row arranged so that a spray area of a liquid material from a main spray nozzle overlaps with each other at least twice when viewed from a horizontal direction orthogonal to the row direction of the spray nozzle row. The subject. The term “main spray nozzle” as used herein is used in comparison with the end spray nozzle used in the present invention, and does not mean that the type or type of spray nozzle is not necessarily different from the end spray nozzle. . Depending on the case, the type and type may be the same as the end spray nozzle, and even if it is the main spray nozzle or the end spray nozzle,
It is simply a name difference based on the role difference.

In the road surface liquid spraying apparatus of the present invention,
It is desirable that the plurality of main spray nozzles constituting the spray nozzle row are linearly arranged. Here, linear does not necessarily mean that the plurality of main spray nozzles are completely on a straight line. Multiple main spray nozzles
Any state can be used as long as it can be distributed with some displacement from the center straight line, and is judged to be arranged in a straight line as a whole. For example, the plurality of main spray nozzles can be alternately zigzag. In this case, since a straight line can be assumed at the center of the zigzag figure, it can be said that these main spray nozzles are linearly aligned. To arrange multiple main spray nozzles in a straight line,
For example, using a spray bar and attaching multiple main spray nozzles to the spray bar is possible, but does not necessarily require the use of a spray bar.

Further, in the liquid spraying apparatus for road surface according to the present invention, the plurality of main spray nozzles constituting the spray nozzle row are arranged such that the area where the liquid material is sprayed from the adjacent main spray nozzles is aligned with the row direction of the spray nozzle row. Although they are arranged so as to overlap with each other more than double when viewed from the orthogonal horizontal direction, as described in the section of the prior art, the dispersion of the spraying characteristics between the plurality of main spray nozzles used is reduced. This is to cancel each other by partially overlapping the spray areas. As a result of overlapping the spray areas of the plurality of main spray nozzles with each other, a plurality of overlapping shortages occur at the ends of the spray nozzle rows. There are no restrictions on the number of duplicates.
Usually, it is about double, triple, or quadruple. Here, the spray area of the spray nozzle refers to an area where the liquid material sprayed from the spray nozzle is sprayed on the road surface.In the case of a spray nozzle having a flat spray pattern, the spray area usually has a slight width. It has a long and thin line shape. Further, the horizontal direction perpendicular to the row direction of the spray nozzle row is a direction in a horizontal plane perpendicular to the longitudinal direction of the spray nozzle row, and usually, the construction in which the spray nozzle row advances while spraying the liquid material. Direction. The construction direction coincides with the traveling direction of the work vehicle when the spray nozzle row is provided at right angles to the traveling direction of the work vehicle with respect to the work vehicle. As a result of advancing the spray nozzle row in the construction direction in a state where the spray areas of the plurality of main spray nozzles overlap with each other more than twice, multiple spraying is performed on the road surface according to the number of spray areas of the main spray nozzles. It will be.

In such a spray nozzle array, the present invention is located at at least one end of the spray nozzle array, and is different from the main spray nozzle in the spray angle and / or the mounting angle and / or the mounting height. One end spray nozzle is provided. The spray angle refers to the spread angle of the liquid material sprayed from the spray nozzle, and in the case of a spray nozzle having a flat spray pattern, the central angle of the flat fan-shaped sprayed from the spray nozzle. That is. In addition, the mounting angle refers to the mounting angle when viewed from above the spray nozzle with respect to the row direction of the spray nozzle row, and in the case of a spray nozzle having a flat spray pattern, the fan surface of the fan-shaped spray pattern Is the angle formed by the row direction of the spray nozzle row. The mounting height is the distance from the spray nozzle to the road surface, and is the spraying height.

In the road surface liquid spraying apparatus of the present invention,
The end spray nozzle may have a different spray angle, a different mounting angle, a different mounting height, or any two of these three or all three of the main spray nozzles. Are different. By doing so, it is possible to achieve uniform spraying in the end region while using a commercially available standard product of the same type as the main spray nozzle without using a specially shaped nozzle as the end spray nozzle. Becomes possible. For example, a flat spray nozzle with the same spray angle and the same spray angle as the main spray nozzle can be used as the end spray nozzle, or a spray nozzle that is the same flat spray nozzle as the main spray nozzle but differs only in the spray angle It is also possible to use the nozzle as an end spray nozzle. In particular,
If the mounting height is different, even if spray nozzles with the same spray angle are used, the length of the spray area is shortened as if a spray nozzle with a small spray angle is used, or The length can be increased as if a spray nozzle having a large spray angle is used. Therefore, according to the present invention, since a commercially available standard product can be used as the main spray nozzle and the end spray nozzle, it is possible to provide a road surface liquid spraying apparatus which is excellent in uniformity of spraying easily and inexpensively. In addition, even in the event of a failure, an alternative to the spray nozzle can be easily obtained, so that there is an advantage that the maintenance and management of the road surface liquid spraying device becomes easy.

The end spray nozzles may be provided at only one end of the spray nozzle row, or may be provided at both ends. The position where the end spray nozzles are provided is such that the spray area of the liquid material from the spray nozzles for the end section is located in the spray area of the liquid material from the main spray nozzle located at the end of the spray nozzle row. The liquid material ejected from the end spray nozzle does not protrude beyond the spraying area from the main spray nozzle and out of the construction width, as viewed from the horizontal direction perpendicular to the direction, so as to be included. It is desirable to do so. In addition, the spray nozzle for the end portion is such that the spray area of the liquid material from the spray nozzle for the end portion is close to the end portion of the spray nozzle row, and the main spray nozzle viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row It is desirable to arrange so as to compensate for the lack of the plurality of overlapping portions of the liquid material in the spraying region so as to achieve uniformity of spraying near the end of the spray nozzle row. Here, the vicinity of the end of the spray nozzle row refers to a region where the number of overlapping regions of the liquid material from the main spray nozzle is insufficient. Further, the number of the end spray nozzles is set to a number corresponding to the shortage of a plurality of overlapping regions of the liquid material from the main spray nozzle as viewed from a horizontal direction orthogonal to the row direction of the spray nozzle row. For example, if the number of duplications in the spraying area of the main spray nozzle at the outermost end is insufficient by one, one spray nozzle for the end is used, and the spraying of the main spray nozzle at the outermost end is also performed. If there is a shortage of two in the area, two end spray nozzles are provided. However, if the uniformity of spraying is somewhat sacrificed, the liquid material ejected from the end spray nozzle may slightly extend outside the application width beyond the spray area from the main spray nozzle. It is also possible to only partially compensate for the lack of a plurality of overlapping areas of the spray area of the liquid material from the main spray nozzle viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row,
It is also possible to provide a different number of end spray nozzles from the number corresponding to the shortage of a plurality of overlapping areas of the liquid material from the main spray nozzle as viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row. good.

The type of the spray nozzle used in the road surface liquid spraying apparatus of the present invention is not particularly limited, and may have a square full-surface spray pattern, a ring-shaped spray pattern, or other spray patterns. However, from the viewpoint of realizing uniform multiple spraying, it is desirable to use a spray nozzle having a flat spray pattern.
With the flat type spray pattern, as described above, the spray nozzle is sprayed in a fan shape with a certain spray angle,
An almost linear ejection pattern whose cross section perpendicular to the ejection direction is elongated.

The road surface liquid spraying apparatus of the present invention is preferably mounted on a work vehicle. The work vehicle is not limited to a work vehicle for road pavement work, but also includes a liquid spray vehicle that sprays a liquid for preventing freezing on a road surface and a liquid for dustproof treatment on an unpaved road. If necessary, it can also be used for fertilizers for agriculture and for spraying asphalt emulsion on fields. However, since the road surface liquid spraying device of the present invention can realize spraying with excellent uniformity even at the end of the construction width, uniformity at an unprecedented level, such as a spraying type surface treatment method, can be realized. It is preferable to use it for a spraying operation where the property is required. As a working vehicle suitable for the spraying type surface treatment method, for example, Japanese Patent Application No. 10-1 by the same applicant
No. 58664, Japanese Patent Application No. 10-158665, Japanese Patent Application No. 10-172107, Japanese Patent Application No.
No. 172119 and Japanese Patent Application No. 10-17798
No. 6, as disclosed in the specification, there is a work vehicle equipped with at least an aggregate spraying device and a binder spraying device,
The road surface liquid spraying device of the present invention is mounted on such a work vehicle as a binder spraying device, and is configured as a work vehicle for a spraying type surface treatment method.

There is no particular limitation on the liquid material sprayed by the road surface liquid spraying apparatus of the present invention, and bituminous materials such as asphalt and asphalt emulsion, water, resins, other emulsions, chemicals, liquid fertilizers, antifreeze, drying Any liquid material that can be normally sprayed on the road surface, such as a preventive liquid, can be applied to any material. Further, the road surface in the present invention is not necessarily limited to a paved road surface, an unpaved road surface, and can be used for watering or spraying liquid materials such as a plaza, a parking lot, a cargo hold, a playground, a field, a coast, a wilderness, a green space, and the like. It includes all of the places where it takes place.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings.

FIG. 1 is a view showing an example of a road surface liquid spraying apparatus according to the present invention. For convenience, a side view is shown on an upper side and a plan view is shown on a lower side in correspondence with positions. In FIG. 1, 1
Are main spray nozzles, 2-1 2-2, 2-3,... Are main spray nozzles, and in the example of FIG. Is a spray nozzle having a flat spray pattern having a spray angle α, and as shown in the lower view of FIG. Are arranged in a straight line. T is an end spray nozzle, and in the example of FIG. 1, a spray nozzle of the same type as the main spray nozzles 2-1, 2-2, 2-3,... Is employed. That is, the spray nozzle T for the end portion is composed of the main spray nozzles 2-1, 2-2, 2-3,.
.. a flat spray nozzle having the same spray angle α as that of the above, wherein the mounting angle with respect to the spray bar 1 is equal to the mounting angle β of the main spray nozzles 2-1, 2-2, 2-3,. Are different β's. (Note that FIG. 1
In the upper view of FIG. 5, the spray angle α of the spray nozzle T for the end portion is determined by the main spray nozzles 2-1, 2-2, 2-3,.
Appears to be different from the injection angle α, but this only appears as such in the drawing due to the different mounting angles. )

The mounting position of the end spray nozzle T with respect to the spray bar 1 is apparent from FIG.
Are not on the straight line formed by the main spray nozzles 2-1, 2-2, 2-3,... It is located on a circumference drawn with the distance from X to the main spray nozzle 2-1 as a radius and at a predetermined angle from the main spray nozzle 2-1. The predetermined angle and the attachment angle β ′ are appropriately determined according to the attachment interval and the ejection angle α of the main spray nozzles 2-1, 2-2, 2-3,... As described above, by selecting the mounting angle β ′ and the mounting position of the end spray nozzle T with respect to the spray bar 1,
The main spray nozzle 2- as the end spray nozzle T
The spraying area 4-T of the end spray nozzle T is used while using the same spray nozzle as 1, 2, 2-3,.
Can be overlapped with half of the spraying area 4-1 of the main spray nozzle 2-1. In the area S where only the single spraying can be performed only by the main spray nozzle, double spraying can be realized. . In addition, the attachment angle β ′ of the end spray nozzle T is different from that of the main spray nozzles 2-1 and 2-
, Strictly speaking, the spraying amount in the region S is larger than that in the regions D1 and D2, but this difference is due to the spray nozzle T for the end portion. It can be adjusted by adjusting the injection amount from. Also, as is clear from FIG.
The spraying area 4-T of the main spray nozzle 2-1 at the outermost end is viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row, that is, the direction indicated by the arrow A in FIG. 1 and compensates for the shortage of a plurality of overlapping regions 4-1 of the liquid material from the main spray nozzle 2-1.

FIG. 2 is a diagram showing another example of the road surface liquid spraying apparatus according to the present invention, in which the same components as those in FIG. 1 are denoted by the same reference numerals. In the example of FIG. 2, the main spray nozzles 2-1, 2-2, 2-
Are different from each other in the spray angle α, except that the spray bar 1 of the spray nozzle T for the end portion is used.
The main spray nozzles 2-1 and 2-
2, 2-3,.... Also,
The attachment position of the end spray nozzle T is on a straight line formed by the main spray nozzles 2-1, 2-2, 2-3,.... Main spray nozzle 2- of spray nozzle T for end
The attachment position on the straight line constituted by 1, 2-2, 2-3,... Is appropriately determined according to the ejection angle α ′ of the end spray nozzle T. As is clear from FIG. 2, the spraying area 4-T of the end spray nozzle T is located at the extreme end when viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row, that is, the direction indicated by the arrow A in FIG. The spray region 4-1 of the main spray nozzle 2-1 is included in the portion, and the plurality of overlapping portions of the spray region 4-1 of the liquid material from the main spray nozzle 2-1 are compensated for. ing. Thereby, even in the end region S of the construction width, double spraying is performed, and uniform spraying is achieved. In addition, the spraying amount per unit area of the spraying area from the spray nozzle T for the end portion is determined by the main spray nozzles 2-1, 2-2, 2-3,.
Needless to say, the application is adjusted so that the amount of application per unit area of the application region is the same as the application amount of the region S, that is, the application amount of the region S is the same as the application amount in the regions D1 and D2.

FIG. 3 is a view showing still another example of the road surface liquid spraying apparatus according to the present invention, in which the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals. In the example of FIG. 3, the main spray nozzles 2-1 and 2 are used as the end spray nozzles T.
, 2,-3,..., And the angle of attachment β ′ of the end spray nozzle T to the spray bar 1 is different from that of the main spray nozzle 2.
-1, 2-2, 2-3,... Are different from the mounting angle β. However, the mounting position of the spray nozzle T for the end portion is determined by the main spray nozzles 2-1, 2-2, 2-3,.
Are on the straight line that constitutes. The mounting position on the straight line formed by the main spray nozzles 2-1, 2-2, 2-3,... Of the end spray nozzle T and the mounting angle β ′ with respect to the spray bar 1 are determined by the spray for the end used. The injection angle α ′ of the nozzle T, the main spray nozzles 2-1, 2-2, 2-
.. Can be appropriately determined according to the mounting interval of 3,. As is clear from FIG. 3, the spray area 4-T of the end spray nozzle T is located in the horizontal direction orthogonal to the row direction of the spray nozzle row, that is, the arrow A in FIG.
When viewed from the direction indicated by, the spray region 4-1 of the main spray nozzle 2-1 at the end is included and the spray region 4-1 of the liquid material from the main spray nozzle 2-1 is included.
To make up for the shortfall in the duplication. Thus, even in the end region S of the construction width, other regions D
Double application is carried out as in 1, D2, etc., and uniform application is achieved. It should be noted that the application amount of the region S is equal to the region D1 or D2
The adjustment is made to be the same as the amount of spraying in the same manner as in the case of FIG.

In the above example, at the end of the spray nozzle row, the number of overlapping areas of the liquid material spray area from the main spray nozzle viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row is as follows: , 1 is used, and one end spray nozzle is used.

FIG. 4 is a view showing still another example of the road surface liquid spraying apparatus according to the present invention, in which the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals. In the example of FIG. 4, the spraying areas from the main spray nozzles 2-1, 2-2, 2-3,...
In D2, D3, ..., triple spraying is performed. However, the main spray nozzle 2-
.., Only double spraying is performed in the region S2, and only single spraying is performed in the region S1. In the example of FIG. 4, the end spray nozzles T1 and T2 are connected to such regions S1 and S2.
In order to compensate for the shortage of the overlapping number of sprays in the above, the shortage of the overlapping number in the endmost region S1 is 3 minus 1, which is 2 so that two end spray nozzles T1, T2 are provided. ing.

The end spray nozzles T1 and T2 are the same spray nozzles, and the main spray nozzle 2
, 2-2, 2-3,... Having an injection angle α ′ different from the injection angle α are used. In addition, the attachment angle β of the one end spray nozzle T1 with respect to the spray bar 1 is such that the main spray nozzles 2-1, 2-2, 2-
, But the mounting angle β ′ of the other end spray nozzle T2 with respect to the spray bar 1 is the same as the main spray nozzles 2-1, 2-2, 2-3,.
・ ・ It is different from the mounting angle β. Further, the mounting position of the end spray nozzle T1 is determined by the main spray nozzle 2-
, 2-2, 2-3,..., The end spray nozzle T2 is attached to the main spray nozzles 2-1, 2-2, 2-3,. The spray area 4 of the spray nozzle T1 for the end, which is not on the straight line
-On the circumference around the end Y of T1 drawn with the radius from the end Y to the end spray nozzle T1 as a radius,
Further, it is located at a position separated by a predetermined angle from the end spray nozzle T1. In addition, the attachment position on the straight line constituted by the main spray nozzles 2-1, 2-2, 2-3,... Of the end spray nozzle T1, and the end spray nozzle T
Of course, the angle from the second end spray nozzle T1 is appropriately selected according to the spray angle α ′ of the end spray nozzles T1 and T2 to be used.

Thus, the end spray nozzle T1,
By selecting the mounting angles β, β ′ and the mounting position of T2 with respect to the spray bar 1, the same spray nozzles can be used as the end spray nozzles T1, T2.
The spray area 4-T1 of the end spray nozzle T1 overlaps with 2/3 of the spray area 4-1 of the main spray nozzle 2-1 and 1/3 of the spray area 4-2 of the main spray nozzle 2-2. At the same time as the end spray nozzle T2
Can be overlapped with 1/3 of the spraying area 4-1 of the main spray nozzle 2-1 and the area S2 in which only the double spraying can be performed only by the main spray nozzle.
In this case, triple spraying can be realized, and triple spraying can be realized even in the region S1 where only the single spraying can be performed only by the main spray nozzle. In addition, the attachment angle β ′ of the end spray nozzle T2 is such that the main spray nozzles 2-1, 2-2, 2-3,.
Strictly speaking, the spraying amount in the area S1 is larger than that in the areas D1 and D2 because the mounting angle β is larger than the mounting angle β of .. This difference controls the spraying amount from the end spray nozzle T2. Can be adjusted. In addition, the spraying amount per unit area of the spraying area from the spray nozzle T1 for the end portion is determined by the main spray nozzles 2-1, 2-2, 2-3,.
It is needless to say that the adjustment is made so as to be equal to the spray amount per unit area of the spray area. By doing so, the amount of application in the regions S1 and S2 can be made the same as the amount of application in the regions D1 and D2.

As is clear from FIG. 4, the spray areas 4-T1, 4-T2 of the spray nozzles T1, T2 for the end portions.
Are included in the spraying area 4-1 of the main spray nozzle 2-1 at the extreme end when viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row, that is, the direction indicated by the arrow A in FIG. In addition, a plurality of overlapping portions in the spray area 4-1 of the liquid material from the main spray nozzle 2-1 are compensated for.

FIG. 5 is a view showing still another example of the road surface liquid spraying apparatus according to the present invention. As in the example of FIG. 4, the main spray nozzles 2-1, 2-2, 2-3,. .. the scatter areas from each other overlap with each other by 2/3, and the areas D1 and D
For 2, D3,..., Triple application is performed. However, the main spray nozzle 2-
.., Only double spraying is performed in the region S2, and only single spraying is performed in the region S1. In the example of FIG. 5, the spray nozzles T1 and T2 for the end portion have such regions S1 and S2.
In order to compensate for the shortage of the overlapping number of sprays in the above, the shortage of the overlapping number in the endmost region S1 is 3 minus 1, which is 2 so that two end spray nozzles T1, T2 are provided. ing.

The end spray nozzles T1 and T2 have spray angles α ′ and α ″ different from the spray angles α of the main spray nozzles 2-1, 2-2, 2-3,... Although different spray nozzles, their mounting angle β with respect to the spray bar 1 is different from the main spray nozzle 2-
1, 2-2, 2-3,... Are the same as the mounting angle β. The mounting positions of the end spray nozzles T1 and T2 are determined by the main spray nozzles 2-1, 2-2, 2-3,.
Are on the straight line that constitutes. However, the mounting positions of the end spray nozzles T1 and T2 on this straight line are determined by the spray angles α ′ of the end spray nozzles T1 and T2 to be used.
Needless to say, it is appropriately selected according to α ″. As described above, by selecting the spray angles α ′, α ″ of the end spray nozzles T1, T2 to be used and the mounting position with respect to the spray bar 1, the end spray nozzle T1 is selected.
Can be overlapped with 2/3 of the spraying area 4-1 of the main spray nozzle 2-1 and 1/3 of the spraying area 4-2 of the main spray nozzle 2-2. The spray area 4-T2 of the end spray nozzle T2 is
It can be overlapped with 1/3 of the spraying area 4-1 of the main spray nozzle 2-1 and triple spraying can be realized even in the area S2 where only double spraying could be performed only with the main spray nozzle. At the same time, even in the area S1 where only a single spray could be performed with only the main spray nozzle,
Triple application can be achieved. In addition, the spray amount per spray area per unit area from the spray nozzles T1 and T2 for the end part is the main spray nozzle 2-1, 2-2, 2-3,
Needless to say, the adjustment is made so as to be the same as the amount of spray per unit area of the spray area. As a result, in the areas S1 and S2, the other areas D1 and D2
2, the same amount of application as in D3 can be realized.

As is apparent from FIG. 5, the spray areas 4-T1 and 4-T2 of the spray nozzles T1 and T2 for the end portions.
Are included in the spraying area 4-1 of the main spray nozzle 2-1 at the end as viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row, that is, the direction indicated by the arrow A in FIG. In addition, a plurality of overlapping portions in the spray area 4-1 of the liquid material from the main spray nozzle 2-1 are compensated for.

In the examples shown in FIGS. 4 and 5, the spray area of the liquid material from the main spray nozzle at the end of the spray nozzle row as viewed from the horizontal direction orthogonal to the row direction of the spray nozzle row. The number of deficiencies of the plural numbers is 2 in each case, so two end spray nozzles are used. Needless to say, when the shortage number of the plurality is 3 or more, three or more end spray nozzles are used. Further, in each of the examples shown in FIGS. 1 to 5, only one end of the spray nozzle row is shown, but it goes without saying that a similar end spray nozzle can be provided at the other end. No.

FIG. 6 is a view showing still another example of the road surface liquid spraying apparatus according to the present invention, wherein the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals. In the example of FIG. 6, the spraying areas from the main spray nozzles 2-1, 2-2, 2-3,...
In D2, D3, ..., double spraying is performed. However, the main spray nozzle 2-
.., Only a single spraying is performed in the area S. In the example of FIG. 6, the end spray nozzles T are provided to compensate for the lack of a plurality of sprays in the region S. In the example of FIG. 6, the same spray nozzles as the main spray nozzles 2-1, 2-2, 2-3,... Are used as the end spray nozzles T. The injection angle α of the nozzle T is the main spray nozzle 2−
Are the same as the injection angles 1, 2, 2-3,....
Also, the mounting angle β of the end spray nozzle T is the same as that of the main spray nozzles 2-1, 2-2, 2-3,... However, the spray nozzle T for the end part has a mounting height h.
However, the main spray nozzles 2-1, 2-2, 2-3, ...
It is installed so that it is different from the installation height H such as
This makes it possible to adjust the length of the spraying area 4-T from the end spray nozzle T to a length that compensates for the shortage in the area S while using the same spray nozzle. Become. In this example, it is needless to say that the spray amount from the end spray nozzle T is adjusted, and as a result, the spray amount in the region S is set to be the same as the spray amount in the regions D1 and D2. It is.

In each of the above examples, the case where a spray bar is used has been described.
1, 2-2, 2-3,... And the end spray nozzle T
1, T2,... May be directly piped without using a spray bar. Further, the number of main spray nozzles constituting the spray nozzle row and the mounting interval are not particularly limited, and can be appropriately set and changed.

[0034]

As described above, according to the road surface liquid spraying device of the present invention, the main spray nozzles constituting the spray nozzle row are different from the main spray nozzles in the spray angle and / or mounting angle and / or mounting height. By using the spray nozzle for spraying, it is possible to easily and inexpensively eliminate the non-uniformity of spraying at the end of the construction width, which has been difficult until now. According to the present invention, it is possible to eliminate non-uniformity of spraying at the end of the working width of the road surface liquid spraying apparatus by using a commercially available standard spray nozzle, so that the apparatus can be freely designed. At the same time, the replacement can be easily obtained even when each spray nozzle is replaced due to a failure or the like, and there is an advantage that the maintenance and management of the apparatus becomes extremely easy. The liquid material sprayed using the road surface liquid spraying device of the present invention is uniform even at the end of the construction width,
For example, if this is used for a method requiring a high degree of uniformity of spraying, such as a spraying type surface treatment method,
By exerting its power especially and being mounted on a single work vehicle together with an aggregate spraying device, etc., it is also excellent as a spraying type surface treatment work vehicle and brings new possibilities to the technical field.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a road surface liquid spraying device of the present invention.

FIG. 2 is a view showing another example of the road surface liquid spraying device of the present invention.

FIG. 3 is a view showing another example of the road surface liquid spraying device of the present invention.

FIG. 4 is a view showing still another example of the road surface liquid spraying device of the present invention.

FIG. 5 is a view showing still another example of the road surface liquid spraying apparatus of the present invention.

FIG. 6 is a view showing still another example of the road surface liquid spraying device of the present invention.

FIG. 7 is a view showing still another example of the conventional road surface liquid spraying device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Spray bar 2 Main spray nozzle 3 Spray pattern 4 Spray area A Horizontal direction orthogonal to the row direction of the spray nozzle row D Overlap spray area L Spray bar center axis S Duplicate plural shortage spray area T Spray nozzle for edge α Spray angle β Mounting angle

Claims (12)

[Claims] 1. A spray nozzle array comprising a plurality of main spray nozzles arranged in a straight line, wherein the plurality of main spray nozzles constituting the spray nozzle array comprises a liquid material from an adjacent main spray nozzle. Spray nozzle rows are arranged so that the spraying area overlaps with each other more than double when viewed from the horizontal direction orthogonal to the row direction of the spray nozzle rows, and is located at at least one end of the spray nozzle rows, The main spray nozzle is the spray angle and / or
Or a road surface liquid spraying device having at least one end spray nozzle having a different mounting angle and / or mounting height. 2. The spray area of the liquid material from the spray nozzles for the end portion is horizontally aligned with the spray area of the liquid material from the main spray nozzle located at the end of the spray nozzle row. The road surface liquid spraying device according to claim 1, wherein an end spray nozzle is disposed so as to be included when viewed from the direction. 3. A spraying area of the liquid material from the end spray nozzle is provided near the end of the spray nozzle row, where the liquid material from the main spray nozzle is viewed from a horizontal direction orthogonal to the row direction of the spray nozzle row. 3. The road surface liquid spraying device according to claim 1, wherein the end spray nozzles are arranged so as to compensate for a plurality of shortfalls in the spray area. 4. An insufficiency number of overlapping numbers of liquid material spray areas from a main spray nozzle as viewed from a horizontal direction orthogonal to a row direction of the spray nozzle row at an end of the spray nozzle row. The road surface liquid spraying device according to claim 1, 2 or 3, wherein the number of the liquid spraying devices is equal to the number of the liquids. 5. The road surface liquid spraying apparatus according to claim 1, wherein the end spray nozzles are located on the same straight line as a plurality of main spray nozzles constituting the spray nozzle row. 6. The road surface liquid spraying apparatus according to claim 1, wherein the end spray nozzles are not located on the same straight line as the plurality of main spray nozzles constituting the spray nozzle row. 7. The spray bar according to claim 1, wherein a plurality of main spray nozzles and / or end spray nozzles constituting the spray nozzle row are attached to the spray bar.
7. The road surface liquid spraying device according to 5 or 6. 8. The spray nozzle according to claim 1, wherein the main spray nozzle and / or the end spray nozzle has a flat spray pattern.
A road surface liquid spraying device as described in the above. 9. The vehicle according to claim 1, which is attached to a working vehicle.
The road surface liquid spraying device according to 2, 3, 4, 5, 6, 7, or 8. 10. A work vehicle equipped with the road surface liquid spraying device according to claim 1, 2, 3, 4, 5, 6, 7, or 8. 11. The apparatus according to claim 1, further comprising an aggregate dispersing device.
0 described work vehicle. 12. The work vehicle according to claim 10, which is a work vehicle for a spray-type surface treatment method.