JPH10183526A - Liquid agent sprayer for vibration type road surface roller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid agent sprayer which does not impede work even in rolling a road surface adjacent to a level difference part such as curb, reduces damage such as deformation and failure, and produced at low cost. SOLUTION: A liquid agent sprayer 1 is mounted on a plate compactor C provided with a rolling plate 13 having an inclined edge part 13a, which is bent upward in the oblique direction, in the front end in the advancing direction and a vibrating machine 14 applying vibration to the rolling plate 13, and the liquid agent is supplied from the inclined edge part 13a to the road surface 13b of the rolling plate. In this case, spray nozzles 3 for spraying the liquid agent supplied from a liquid agent tank 2, from a spray hole are penetratedly attached to an inclined edge part 13a in such a state that a small nozzle head part is formed by projecting its tip end from the inclined edge part 13a of the rolling plate 13 to a road surface side and the spray hole is bored in the nozzle head part approximately in parallel to the surface of the inclined edge part 13a. The spray nozzles 3 are constituted of a hexagon head bolt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid spraying apparatus mounted on a vibratory road compacting machine such as a plate compactor for supplying a liquid to the surface of a compacting plate to prevent the asphalt mixture from adhering.

[0002]

2. Description of the Related Art A vibratory road compacting machine such as a plate compactor is mainly used for compacting an asphalt road surface. Since the asphalt mixture adheres to the surface (hereinafter referred to as the tread) that comes into contact with the surface, the smooth road surface compaction cannot be performed.
2. Description of the Related Art A method has been conventionally implemented in which a liquid agent spraying device that is supplied continuously or intermittently during operation to prevent the asphalt mixture from adhering is mounted on an airframe.

FIGS. 4 and 5 show an example of a conventional liquid spraying apparatus mounted on a plate compactor as a vibratory road surface compacting machine.
Shown in FIG. 4A is a front view of a plate compactor on which the liquid spraying device is mounted, and FIG. 4B is a side view. FIG. 5 is a view on arrow G in FIG. 4B. In FIG. 4, reference numeral 31 denotes a plate compactor, which includes a compacting plate 32 for compacting the road surface, an exciter 33 for applying vibration to the compacting plate 32, a motor 34 for driving the exciter 33, and the like. The front and rear ends of the consolidation plate 32 are bent obliquely upward while forming a gentle arc to form a sloped edge 32a for a so-called non-rough portion start-up operation such as near a curbstone or a manhole periphery.

The liquid spraying device 35 includes a liquid tank 36 for storing an asphalt adhesion preventing liquid and the like, a liquid spraying pipe device 37 attached to the inclined edge 32 a of the rolling plate 32 in the traveling direction, and a liquid discharging port of the liquid tank 36. When the cock 45 is opened, the liquid in the liquid tank 36 is sent to the liquid spray pipe device 37 via the liquid supply hose 38 by gravity. It has become. Liquid spray tube device 37
As shown in FIG. 5, a scatter tube 39 made of a hollow member whose both ends are closed by a cap 42 is supported at its both ends by scatter tube fixing members 40 and 41, so that the inclined edge 32a is formed. The scatter pipe 39 is disposed over the left and right ends and parallel to the surface of the inclined edge 32a.
Are provided with a plurality of spray holes 39a at predetermined intervals at a portion facing the inclined edge 32a. Spray tube fixing member 4
Reference numerals 0 and 41 respectively denote substantially cubic scatter pipe support portions 40.
a, 41a and screw portions 40b, 41b, and through holes for penetrating the spray tube 39 are formed in the spray tube support portions 40a, 41a.
a, and is attached to the inclined edge 32a with a nut 43. Further, the scatter pipe fixing member 41 has a nipple portion 41c connected to the liquid agent supply hose 38, and the nipple portion 41c
A liquid agent supply hole 41d is formed so as to communicate with the inside of the spray tube 39 from the end surface of the spray tube 39. The liquid spraying device 35 is configured as described above, and the liquid supplied from the liquid tank 36 to the spray pipe 39 is sprayed from the spray holes 39a toward the inclined edge 32a by the vibrating action of the plate compactor. . The liquid agent adhering to the inclined edge 32a is supplied to the tread as droplets along the surface of the inclined edge 32a.

[0005] Fig. 6 shows another conventional example relating to a liquid spray tube device. FIG. 6A is a front view thereof, and FIG. 6B is a side view thereof (a portion of the scatter tube is a cross section). Liquid agent spray tube device 5
1 is that the spray tube 52 is disposed at substantially the same height as the tip of the inclined edge 32a, and the spray tube 5
2 is supplied from a position above the arc-shaped upper corner of the inclined edge 32a via the joint 53. The spray holes 52a for spraying the liquid agent are formed at the lower end of the spray tube 52, and a plurality of spray holes are formed at predetermined intervals as in the above-described conventional example. Also, a scatter tube 5 made of a hollow member
A guard plate 54 is provided to protect the sprinkler 2, and one end of the guard plate 54 is fastened together using a bolt 55 for fixing the vibrator 33, and the other end is curved in a substantially U-shape so as to surround the scatter pipe 52. It is formed. Reference numeral 57 denotes a scatter tube fixing member for supporting and fixing the scatter tube 52, and is fixed to the guard plate 54 by bolts 58. The scatter tube 52 is fixed to the scatter tube fixing member 57 by welding or the like. Reference numeral 56 denotes a guard plate 54.
Is a reinforcing member. The liquid agent spraying pipe device 51 is configured as described above, and the liquid agent is ejected in a mist form from the spray holes 52a toward the lower side of the inner surface of the guard plate 54, but is reflected by the curved inner surface portion of the guard plate 54, and is opened to the opening. Sloped edge 32a located
Will be sprayed towards.

[0006]

Vibratory road compactors, especially plate compactors, are often used for asphalt repair work on roadways. In the case where the above-described conventional liquid medicine spraying device is mounted, the following problems have occurred. (1) In the case of the former liquid agent spraying device 35, since the spraying tube 39 made of a hollow member is attached to the surface of the inclined edge as a large projection, during the crimping operation near the curbstone In addition, the spray pipe 39 comes into contact with the curb, so that not only can the road surface compacting work at the corner of the curb be performed smoothly, but also the pipe is deformed and damaged. Also, the spray tube fixing member 4
The components such as 0 and 41 have complicated shapes, and their production and processing are troublesome, leading to an increase in the cost of the entire apparatus. (2) Further, the latter liquid agent spraying device has an advantage that breakage of a spraying tube made of a hollow member can be prevented,
The guard plate 54 hinders the work of compacting the road surface at the corner of the curb smoothly, and the large number of members leads to an increase in the cost of the apparatus. For this reason, there has been a problem that the mobility of the plate compactor itself is impaired.

The present invention has been made in order to solve the above-mentioned problems, and does not hinder the work even at the road surface compaction pressure near a stepped portion such as a curb, and has less damage such as deformation and breakage. It is an object of the present invention to provide a liquid material spraying device for a vibrating road surface compacting machine which can be manufactured at low cost.

[0008]

The present invention uses the following means to achieve the above object. The rolling edge is mounted on a vibratory road surface pressing machine having a pressing plate having a slanted edge bent obliquely upward at the front end in the traveling direction and a vibrator for applying vibration to the pressing plate. A liquid agent spraying device for supplying a liquid agent to the tread surface of a compaction plate, comprising a liquid agent tank for storing the liquid agent, and a spray nozzle for spraying the liquid agent supplied from the liquid agent tank from a spray hole, wherein the spraying nozzle includes:
The tip is protruded from the inclined edge to the road surface side to form a small nozzle head, and is penetrated through the pressing plate, and the spray hole is formed in the nozzle head substantially parallel to the surface of the inclined edge. It was configured to be drilled. In addition, the spray nozzle is configured to be mounted above the inclined edge so that its tip is located rearward of the tip of the inclined edge in the traveling direction of the pressing plate, or substantially at the same position.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which a liquid material spraying device of a vibration type road surface compacting machine according to the present invention is mounted on a plate compactor will be described with reference to FIGS. FIG. 1 is an explanatory view showing the appearance of a plate compactor on which a liquid spraying device is mounted. FIG. 1 (a) is a front view, and FIG. 1 (b) is a side view. 2 is a view taken in the direction of the arrow A in FIG. 1B, and FIG. 3 is a sectional view taken along the line BB in FIG.

In FIG. 1, reference numeral C indicates a plate compactor. The plate compactor C includes a pressing plate 13,
The exciter 14, the drive motor 15, and the engine 16 are main components, and a steering handle 18 is provided at a rear portion. A guard frame 17 made of a pipe material is provided with a guard frame 17 made of a pipe material to protect the vehicle from overturning. It is attached so as to surround the engine 16 and the like. The pressing plate 13 is made of a steel plate, and a bottom surface portion that contacts the road surface such as asphalt and performs the pressing is a tread surface 13b, and has a sloped edge bent obliquely upward with a gentle arc at the front end in the traveling direction. Part 13
a. The exciter 14, the drive motor 15 and the engine 16 are fixedly installed directly on a reverse-concave mounting plate 19 welded to the inner surface of the pressing plate 13 or via a bracket or the like. By rotating the drive motor 15 and the vibrating shaft in the vibrator 14 via the belt 20, vibration is applied to the compacting plate 13.

The liquid sprayer 1 includes a liquid tank 2 for storing the liquid, a spray nozzle 3 for spraying the liquid supplied from the liquid tank 2, and a hose group for supplying the liquid from the liquid tank 2 to the spray nozzle 3. And mounted at the front of the plate compactor C in the traveling direction. Liquid agent tank 2
Is made of an iron plate, is sandwiched by the guard frame 17, is placed on the bracket 21, and is attached to the front upper portion of the plate compactor C in the traveling direction. As the liquid agent, an asphalt adhesion inhibitor made of mineral oil, an asphalt adhesion inhibitor obtained by mixing mineral oil and water by using an emulsifier, or a material suitable for the road surface material such as water is appropriately used. Here, the liquid also includes water itself. The liquid agent is supplied from the liquid agent tank 2 to the spray nozzle 3 through flexible liquid agent supply hoses 4, 5, and 6, and the liquid agent is supplied to a nipple 22 for discharging the liquid agent provided at the bottom of the liquid agent tank 2. The hose 4 is connected, and the solution supply passages thereof are connected to the solution supply hoses 5 and 6 through three hose connection nipples 7.
And connected to the spray nozzles 3 attached near the left and right ends of the inclined edge 13a. A cock 8 that can be opened and closed is attached to the nipple 22. When the cock 8 is manually opened, the liquid agent flows through the hose by gravity and is supplied to the spray nozzle 3 located below.

In order to sufficiently supply the liquid agent to the tread 13b, in the present embodiment, one spray nozzle 3 is attached to each of the positions near the left and right ends of the inclined edge 13a. It is possible to change the design such as attaching a single piece to the center of the inclined edge or attaching three or more pieces at a predetermined interval. In the present embodiment, a hexagonal bolt of M10 size, which is a solid member, is used as the spray nozzle 3, and the tip of the hexagonal bolt 9, that is, the bolt head is separated from the inclined edge 13 a by the road surface as shown in FIG. 3. The screw portion penetrates a mounting hole formed at a predetermined position of the inclined edge portion 13a so as to protrude to the side to form a small nozzle head 3a, and the inclined edge portion 13 is formed by a spring washer 10 and a nut 11.
fixed to a. The hexagonal bolt 9 is provided with a liquid material passage hole 9a by drilling a hole from the end surface of the screw portion to the center of the bolt head, and the bolt head is formed by a drilling hole communicating with the liquid material passage hole 9a. Holes 9b and 9c are drilled (see FIG. 2). The spray holes 9b and 9c are drilled so that their hole axes are parallel to the surface of the inclined edge 13a, so that the liquid agent is sprayed along the surface of the inclined edge 13a. In the present embodiment, as shown in FIG. 2, each spray hole 9b is formed horizontally with the road surface and toward the center of the inclined edge 13a so that the liquid agent spray on the inclined edge 13a can be spread over the entire surface. And
The spray hole 9c is formed so that its hole axis is directed downward at the left and right sides of the inclined edge portion 13a at an angle of about 120 ° with respect to the hole axis of the spray hole 9b. Hex bolt 9
The liquid material supply hoses 5 and 6 are connected to the ends of the threaded portions, respectively, and fixed by a hose band 12.

As described above, by using the means for forming the spray hole substantially parallel to the surface of the inclined edge, the nozzle head of the spray nozzle protruding from the surface of the inclined edge can be minimized. As a result, there is no contact with curbs and the like, and a smooth road surface rolling operation is always achieved. Also,
The number of members is small, and the spray nozzle is not a hollow member such as a pipe, but is machined and used as a solid member, such as a hexagon bolt. It also has the advantage of being simple and inexpensive to manufacture. Since the liquid material is sprayed radially in the form of a mist due to the vibrating action of the compacting plate, the spray hole does not need to be completely parallel to the surface of the inclined edge, but a slight angle of inclination toward the surface of the inclined edge. Appropriate design changes are possible, such as drilling.

In this embodiment, the tip of the spray nozzle 3, that is, the head of the bolt of the hexagonal bolt 9 is substantially connected to the tip of the inclined edge 13a so as not to protrude extremely from the tip of the inclined edge portion 13a in the traveling direction of the pressing plate 13. The hexagonal bolt 9 is mounted above the inclined edge 13a to such an extent as to be at the same position. With such a configuration, the frequency of contact with a stepped portion such as a curb is reduced, so that deformation and breakage of the spray nozzle can be prevented as much as possible.

As described above, the preferred embodiment of the liquid material spraying apparatus of the vibratory road surface compacting machine according to the present invention has been described.
The main feature of the present invention is that the spray nozzle is mounted on the inclined edge of the pressing plate so that the nozzle head protrudes smaller than the surface of the inclined edge, and the spray hole is substantially parallel to the surface of the inclined edge. The scope of the present invention is not limited to the above-described embodiment, but may be variously changed by appropriately changing the shape and the mounting position of each component without departing from the gist of the present invention. Application becomes possible.

[0016]

According to the present invention, the liquid spraying device for the vibrating road surface compacting machine has the following effects. (1) Since the spray nozzle is mounted to penetrate the inclined edge so that the tip end protrudes from the inclined edge of the pressing plate to the road surface side to form a small nozzle head, the spray nozzle is compared with the conventional liquid spraying apparatus. As a result, the frequency of contact with steps such as curbs is extremely reduced, and deformation and breakage of the spraying nozzle can be prevented as much as possible, and a smooth road surface compaction work can be realized at all times. In addition, since the number of members is small, assembling of the device is simplified and an inexpensive device is realized. (2) Further, the spray nozzle may be mounted such that its tip is located rearward of the tip of the inclined edge in the traveling direction of the pressing plate, or above the inclined edge to such an extent that it is substantially at the same position. If this is the case, the frequency of contact with steps such as curbs can be further reduced.

[Brief description of the drawings]

FIG. 1 is an external explanatory view showing a plate compactor on which a liquid agent spraying device is mounted, FIG. 1 (a) is a front view, and FIG.
(B) is a side view.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1 (b).

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is an explanatory view showing a conventional liquid agent spraying apparatus, and FIG.
FIG. 4A is a front view of a plate compactor on which a liquid spraying device is mounted, and FIG. 4B is a side view.

FIG. 5 is an explanatory view showing a conventional liquid agent spraying apparatus, and FIG.
It is an arrow G view in (b).

FIG. 6 is an explanatory view of a main part showing another conventional example of a liquid agent spraying apparatus, where FIG. 6 (a) is a front view and FIG. 6 (b) is a side view.

[Explanation of symbols]

 C Plate compactor 1 Liquid agent spraying device 2 Liquid agent tank 3 Spray nozzle 3a Nozzle head 4-6 Liquid agent supply hose 7 Hose connection nipple 8 Cock 9 Hexagon bolt 9a Liquid agent passage hole 9b, 9c Spray hole 10 Spring washer 11 Nut 12 Hose band 13 Rolling plate 13a Inclined edge 13b Tread surface 14 Exciter 15 Drive motor 16 Engine 17 Guard frame 18 Handle 19 Mounting plate 20 Belt 21 Bracket 22 Nipple

Claims (2)

[Claims] 1. A vibratory road surface compacting machine comprising: a compacting plate having an inclined edge bent obliquely upward at a front end in a traveling direction; and a vibrator for applying vibration to the compacting plate. What is claimed is: 1. A liquid spraying device for supplying a liquid agent from a sloped edge of a pressure plate to a tread surface of a pressing plate, comprising: a liquid agent tank for storing the liquid agent; and a spray nozzle for spraying a liquid agent supplied from the liquid agent tank through a spray hole. The spraying nozzle is mounted so as to penetrate the pressing plate so that the tip end protrudes toward the road surface side from the sloped edge to form a small nozzle head, and the spraying hole is substantially parallel to the surface of the sloped edge. A liquid agent spraying device for a vibratory road surface pressing machine, wherein the liquid agent spraying device is configured to be bored in a nozzle head. 2. A configuration in which the spray nozzle is mounted above the inclined edge so that its tip is located rearward of the tip of the inclined edge in the traveling direction of the pressing plate, or substantially at the same position. 2. The liquid spraying device for a vibratory road surface compacting machine according to claim 1, wherein: