JP2011094450A - Anti-freezing agent spraying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anti-freezing agent spraying apparatus which surely and efficiently sprays an anti-freezing agent dropped on a spray disk, to a rut part on the road surface of a travel lane as well as spraying the anti-freezing agent onto the road surface of an opposite lane or an overtaking lane by the rotation of the spray disk. <P>SOLUTION: The front half of the periphery of the spray disk 2 is surrounded by a fixed scatter preventing plate 7 curved in a semicircular arc-shape and provided with an anti-freezing agent spray opening 7a on one side, and the latter half of the periphery of the spray disk 2 is surrounded by a movable scatter preventing plate 8 curved in a semicircular arc-shape and provided with an anti-freezing agent spray opening 8a on the other side, In this state, the anti-freezing agent is sprayed onto the rut part by jetting the anti-freezing agent from the anti-freezing agent spray openings 7a, 8a on both sides by the rotation of the spray disk 2, while the movable scatter preventing plate 8 is moved downward to open a space part on the spray disk 2 backward. Thus, the anti-freezing agent can be sprayed onto the road surface obliquely backward. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an antifreezing agent spraying device for spraying an antifreezing agent on the road surface of an oncoming lane or an overtaking lane, or on a ridge part of the road surface of a traveling lane.

  Conventionally, in winter, in order to prevent freezing of the road surface, the antifreezing agent is sprayed on the road surface by an antifreezing agent spraying vehicle. As such an antifreezing agent spraying vehicle, the antifreezing agent is stored in a freezing agent storage hopper installed on the main body of the spraying vehicle, and the antifreezing agent of the storage hopper is conveyed by a conveyor while traveling at a predetermined speed. After transporting to the rear end of the spreader car body, it is configured to drop onto a rotating spraying disk of the spraying device through a chute and spray evenly on the surrounding road surface by the rotating centrifugal force of this disk. At this time, in order to prevent the antifreezing agent from being sprayed to the road surface portion that does not need to be sprayed by the rotation of the spraying disk, for example, as described in Patent Document 1, this is arranged on the front side of the spraying disk. A fixed scattering prevention plate that is curved in an arc shape along the outer periphery of the scattering disk is disposed to regulate the spraying angle and spraying range of the antifreezing agent.

  However, in such a configuration, the antifreezing agent can be sprayed over the entire road surface of the lane to be sprayed, but it is not necessary to spray on the road surface other than the buttock for a one-lane road. In spite of this, spraying over the entire surface is not only extremely uneconomical due to spraying more cryoprotectant than necessary, but also reduces the spraying distance and significantly reduces the efficiency of spraying work. Will do.

  For this reason, as described in Patent Document 2, a buttock spraying device has been developed that enables the antifreezing agent to be intensively sprayed on the ridges of the road surface. This buttock spraying device is provided with a pair of left and right shoots for feeding the antifreeze agent to the buttock side on both sides of the chute for feeding the antifreeze agent on the rotating disk, and the upper ends of these three chutes. A switching plate that switches the supply of the antifreeze agent to the above-mentioned chute that leads to the rotating disk and these chutes is arranged in the opening. The pipe from the aqueous solution tank is divided into two in the middle and branched into a pipe part on the disk side and a pipe part on the rolling side.

Japanese Patent No. 2854839 Japanese Patent No. 3417294

  However, according to the above-described buttocks spraying device, apart from the supply chute of the antifreezing agent on the spreading disk, it is necessary to provide a pair of left and right burning chutes. In addition to the need to install a separate antifreeze conveyor, it is also necessary to install a branch pipe that sprays the aqueous solution onto each chute as described above in order to spray wet antifreeze. As a result, the entire device becomes complicated and not only is it prone to failure, but it is also expensive, and it is difficult to improve the existing antifreezing agent spraying device so that it can be sprayed on the buttock. There was a problem.

  The present invention has been made in view of such problems, and the object of the present invention is to efficiently and reliably spray the antifreezing agent on the desired road surface and only the buttocks with a simple structure. An object of the present invention is to provide an anti-freezing agent spraying device that can be used in the present invention.

  In order to achieve the above object, the antifreezing agent spraying device according to the present invention, as described in claim 1, throws the antifreezing agent on the spraying disk through a chute and sprays it on the road surface by rotation of the spraying disk. In the antifreezing agent spraying device, the fixed scattering prevention plate having a constant height curved along an arc and disposed along the outer periphery of the first half of the spraying disk, and disposed along the outer periphery of the second half of the spraying disk. A movable scattering prevention plate that can be moved up and down in an arc shape surrounding the upper space portion of the scattering disk together with the fixed scattering prevention plate, and the space portion on the scattering disk is moved backward by moving the movable scattering prevention plate in the vertical direction. Moving means for opening toward the left side, and left and right buttocks spreading restriction plates arranged at a certain distance from the spreading disc on both sides of the spreading disc, and one side portion of the fixed scattering prevention plate, To the other side of the movable splash prevention plate, Each has a structure formed by providing an antifreeze agent diffusing openings for scattering the cryoprotectant on spraying disc toward the rut unit spraying regulating plate above the right and left.

  In the antifreezing agent spraying device configured as described above, the invention according to claim 2 is characterized in that fixed frames having a fixed length project outwardly on both sides of the chute, and left and right on these fixed frames. The upper end portions of the buttock spraying restriction plates are pivotally attached to the left and right directions, respectively, and a cylinder for turning these buttock spraying restriction plates is attached to the fixed frame. .

  Further, the invention according to claim 3 is characterized in that a stopper for adjusting the rotation angle of the buttocks spreading regulating plate is provided on the fixed frame.

  Further, as a means for moving the movable scattering prevention plate up and down, in the invention according to claim 4, a link mechanism is used to connect the front end portions on both sides of the movable scattering prevention plate to the brackets fixed to the rear end portions on both sides of the fixed scattering prevention plate. And the link mechanism is operated by a motor. In the invention according to claim 5, a cylinder is attached to the chute or the fixed frame, and the piston rod of the cylinder is movable. The movable scattering prevention plate is configured to move up and down in connection with the scattering prevention plate.

  According to the antifreezing agent spraying device of claim 1, the space on the spraying disk can be easily and vertically moved by moving the movable scattering prevention plate disposed along the outer periphery of the latter half of the spraying disk. If the antifreezing agent is dropped on the rotating disc rotating through the chute in this state, it can be surely opened to the whole rearward, and the fixed part arranged along the outer circumference of the first half of the spreading disc The anti-freezing agent is prevented from being sprayed to the front side by the anti-scattering plate, and on the road surface of the oncoming lane and the overtaking lane through the opening between both ends of the fixed anti-scattering plate that opens toward the rear. It can be sprayed with a predetermined spraying range.

  Furthermore, the movable scattering prevention plate is disposed so as to surround the latter half portion of the fixed scattering prevention plate, and the upper space around the scattering disc is surrounded by the fixed scattering prevention plate along the entire circumference with a certain height. Then, the opening part that leads to the outside in the horizontal direction from the top of the spraying circle is only the antifreezing agent spraying opening provided on one side of the fixed scattering prevention plate and the other side of the movable scattering prevention plate. Therefore, the antifreezing agent put on the spreading disc is concentrated toward the left and right buttock spreading regulating plates arranged on both sides of the spreading disc through these antifreezing agent spreading openings by the centrifugal force caused by the rotation of the spreading disc. The anti-freezing agent is concentrated and reliably applied to the saddle that is the tire passage part of the vehicle below the saddle spraying restriction plate. Can be sprayed.

  In this way, it is possible to concentrate the antifreezing agent dropped on the spreading disc intensively on the buttocks, etc., so that it is possible to effectively spread the antifreezing agent and extend the spraying distance. Efficient spraying can be made possible with a reduction in the amount. In addition, the antifreezing agent device has a scattering disk in which a movable scattering prevention plate provided with an antifreezing agent spraying opening is provided on the other side of the fixed scattering prevention plate provided with an antifreezing agent spraying opening on one side. Since the buttock spraying restriction plate is disposed on both sides of the spray disk, such a device is used as an antifreeze agent with a spray disk in an existing antifreeze spray vehicle. By incorporating it in the spraying device, it can be easily improved to a spraying device having a function capable of spraying on the buttocks.

  According to the invention which concerns on Claim 2, the fixed frame of fixed length protrudes in the both sides of the said chute | shoot toward the outer side, and the upper end part of the right and left buttocks spreading | diffusion restriction | limiting board is respectively attached to these fixed frames. Since it is pivotally mounted in the left and right direction and is mounted on the fixed frame with a cylinder that rotates these buttock spraying restricting plates, these buttock spraying restricting plates can be rotated in the left and right directions. By doing so, it is possible to easily adjust the angle at which the antifreeze agent spills on the saddle spraying restriction plate and reflects toward the road surface according to the width between the ribs. While it can be sprayed intensively and accurately, when spraying the antifreeze agent on the road surface of the oncoming lane or the overtaking lane, it is possible to rotate these buttock spraying restriction plates until they become horizontal. Don't be disturbed by the buttocks spreading restriction board , It is possible to perform the spraying work of the antifreeze agent to a road surface.

  According to the invention of claim 3, since the stopper for adjusting the rotation angle of the buttock spraying restriction plate is provided on the fixed frame, the cylinder is operated to bring the buttock spraying restriction plate into contact with the stopper, By receiving the antifreeze, the antifreeze can be sprayed easily and reliably on the buttock, and at that time, the angle at which the antifreeze spills and reflects on the buttock spraying restriction plate is reflected by the vehicle width. By adjusting the angle corresponding to a 1.7m passenger car and a truck with a vehicle width of 2.5m, the antifreeze agent can be accurately sprayed on each buttocks.

  In addition, as a means for moving the movable scattering prevention plate arranged along the outer periphery of the latter half of the scattering disk in the vertical direction, as described in claim 4, on both side rear end sides of the fixed scattering prevention plate The front end portions of both sides of the movable scattering prevention plate may be connected to the fixed bracket so as to be movable up and down via a link mechanism, and the link mechanism may be operated by a motor. As described in 5, the cylinder may be attached to the chute or the fixed frame, and the piston rod of the cylinder may be connected to the movable scattering prevention plate so that the movable scattering prevention plate is moved up and down. Yes, by any means, the movable anti-scattering plate surrounding the latter half of the spreading disk can be moved easily and quickly in the vertical direction to easily and reliably follow the space on the spreading disk. It is possible to open the entire surface towards the surface, and to form a circular peripheral wall with a fixed height that surrounds the spray disc together with the fixed anti-scatter plate, making it easy to prepare antifreeze spraying work on the heel It can be carried out.

The simplified rear view of the whole apparatus. The simplified longitudinal side view. Simplified plan view. The rear view which expanded the antifreezing agent spraying device part in FIG. The plan view. The partially cutaway simplified side view. The cross-sectional view of the fixed scattering prevention board and movable scattering prevention board which have surrounded the spreading disk. The side view which shows the connection state of a fixed scattering prevention board and a movable scattering prevention board. The simplified perspective view. The side view of the state which moved the movable scattering prevention board below. The simplified perspective view. The simplified top view of the state sprayed on the road surface on the right side. The simplified side view at that time. A simplified rear view of the sprayed state. The simplified top view of the state currently sprayed on the buttocks. The simplified rear view which shows another means to move a movable scattering prevention board up and down. The side view. The side view of the state which moved the movable scattering prevention board below.

  Next, an embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, a hopper A for storing an antifreezing agent is mounted on a chassis (not shown) of an antifreezing agent spraying vehicle. A belt conveyor B for conveying the antifreezing agent discharged from the lower end opening of the hopper A rearward along the lower end opening of the hopper A is disposed horizontally in the front-rear direction. The antifreezing agent spraying device of the present invention is arranged at the rear end of the chassis on the conveyor terminal side of the conveyor B.

  The antifreezing agent spraying device puts the dry antifreezing agent carried out from the conveyor B into the chute 1, and the spraying disc 2 disposed below the chute 1 as the wet antifreezing agent C while passing through the chute 1. The anti-freezing agent C is sprayed onto the road surface by centrifugal force generated by the rotation of the spray disk 2 and the specific structure thereof will be described below.

  The chute 1 is formed in a rectangular tube shape, with the upper end opening facing the lower part of the antifreezing agent conveyance end of the belt conveyor B at the center in the width direction at the rear end of the chassis. Thus, it is mounted and supported via an appropriate support fixing member. A support member 3 (shown in FIGS. 4 to 6) is fixed to the rear surface of the lower end portion of the chute 1, and a shaft 4 erected vertically upward from the center portion of the spreading disk 2 on the support member 3. The upper end of the shaft 4 is connected to a motor 5 installed on the support member 3 so as to be rotatable, and the spreading disk 2 is rotated about the shaft 4 by the motor 5.

  The spreading disk 2 has a plurality of blades 2a (shown in FIG. 7 and the like) radially projecting at predetermined intervals in the circumferential direction on the horizontal upper surface, and the front upper surface of the scattering disk 2 on the chute 1 While facing the lower end opening, on the lower surface of the support member 3, the diameter is larger than the spreading disc 2 on the same center line as the spreading disc 2 with a certain distance above the spreading disc 2. The fixed disk 6 is fixed, and a through hole 6a is provided in the front part of the fixed disk 6 so that the lower end opening of the chute 1 is fully communicated. Further, the lower end opening of the chute 1 is faced toward the upper surface of the front part of the spreading disk 2, and the spreading disk rotating shaft 4 is connected to the rotating shaft of the motor 5 through the through hole 6 a.

  Furthermore, the semicircular length of the spreading disc 2 has a slightly wider vertical width than the vertical width between the fixed disc 6 and the spreading disc 2 at the front half peripheral portion of the lower peripheral portion of the fixed disc 6. Is fixed to the upper end surface of a fixed scattering prevention plate 7 formed by curving an oblong rectangular strip having a substantially equal length to an arc shape to form a semicircular frame, and the lower end of the fixed scattering prevention plate 7 is fixed. As shown in FIGS. 6 and 7, the outer peripheral end surface of the front half of the spreading disc 2 is covered with a small interval by the inner circumference of the portion, and the upper surface of the front half of the spreading disc 2 and the fixed disc 6 are The outer peripheral opening end between the lower surface of the front half portion is closed by the semicircularly curved inner peripheral surface of the fixed scattering prevention plate 7 and the rear end portions on both sides of the fixed scattering prevention plate 7 facing rearward. The opening 7b between them is fully opened toward the rear.

  In addition, the lower and upper peripheral edges of the fixed disk 6 have the same vertical width (height) as the fixed scattering prevention plate 7 below the fixed disk 6 along the rear peripheral edge, and the scattering disk 2. A movable anti-scattering plate 8 formed by bending a horizontally long rectangular strip having a length substantially equal to the semicircular circumferential length into a circular arc shape by curving it in a circular arc shape is provided so as to be movable up and down. The outer peripheral end surface of the latter half of the spreading disc 2 is covered with a small interval by the inner peripheral surface of the lower end portion of the movable scattering prevention plate 8, and the upper end surface is fixed by moving the movable scattering prevention plate 8 upward. In a state in which the front half peripheral portion of the lower surface of the lower surface of the plate 6 is in contact with the front half peripheral portion, the front end surfaces on both sides of the movable scattering prevention plate 8 face the rear end surfaces on both sides of the fixed scattering prevention plate 7 in abutting manner. Between the scattering disk 2 and the fixed disk 6 by the scattering prevention plate 7 and the movable scattering prevention plate 8. While the annular frame surrounding the space portion 10 is formed, as shown in FIG. 10, in the state where the movable scattering prevention plate 8 is moved downward from the spreading disk 2, the latter half of the space portion 10 is formed. The part is fully opened from both sides toward the rear.

  Furthermore, these scattering prevention plates 7 are provided on one side portion of the fixed scattering prevention plate 7 provided on the first half side of the scattering disc 2 and on the other side portion of the movable scattering prevention plate 8 provided on the second half side of the spreading disc 2. , 8 are provided with rectangular antifreezing agent spraying openings 7a and 8a each having an appropriate size so as to penetrate between the inner and outer peripheral surfaces, and by the fixed scattering prevention plate 7 and the movable scattering prevention plate 8 as described above. When an annular frame is formed, as shown in FIG. 7, these antifreezing agent spraying openings 7 a and 8 a are configured so as to be generally opposed on a diameter line passing through the center of the spraying disk 2 and fixed. The spreading disc 2 rotates from the front end side to the rear end side of the opening 7a with respect to the antifreezing agent spraying opening 7a provided on one side of the scattering preventing plate 7, and the movable scattering preventing plate 8 For the antifreezing agent spraying opening 8a provided on the other side, the spraying disc 2 is located behind the opening 8a. By rotating from the end side toward the front end side, the antifreezing agent C dropped on the spreading disc 2 is directed obliquely rearward from the antifreezing agent spraying opening 7a of the fixed scattering prevention plate 7, as will be described later. From the freezing agent spraying opening 8a of the movable scattering preventing plate 8 and sprayed in an obliquely forward direction and spilled into the buttock spraying restricting plates 9 and 9 on both sides to be described later. In this case, it is configured so that it can be sprayed in the road surface width direction orthogonal to the front-rear direction.

  As a means for moving the movable scattering prevention plate 8 up and down, as shown in FIGS. 7 to 11, a lower portion is provided at both end portions on the outer peripheral edge of the fixed disc 6 facing both side surfaces of the rear end portion of the fixed scattering prevention plate 7. The upper ends of the plate-like brackets 11 and 12 projecting downward from the lower end of the rear end portion of the fixed scattering prevention plate 7 are fixed respectively, and the front end portions on both sides of the movable scattering prevention plate 8 are attached to the both side brackets 11 and 12, respectively. Each is connected through a link mechanism 13 so as to be movable up and down.

  Specifically, the link mechanism 13 is composed of a pair of upper and lower parallel links 13a and 13b. The front and rear ends of these links 13a and 13b are connected to the intermediate portion of the brackets 11 and 12, the upper front end of the movable scattering prevention plate 8, and the bracket. Both side brackets 11, 12 are pivotally attached to the lower end portions of 11, 12 and the lower front end portion of the movable scattering prevention plate 8 and protrude downward from the lower end of the rear end portion of the fixed scattering prevention plate 7. This rotation is supported by a motor 15 attached to one bracket 11 or 12 by rotatably supporting a rotation shaft 14 pivotably mounted on the front end portion of the lower link 13b between the lower end portions of the lower link 13b. By moving the shaft 14 back and forth, the movable scattering prevention plate 8 is moved up or down.

  As shown in FIGS. 4 and 5, the base end portions of rod-like fixed frames 16, 16 having a fixed length are fixed to both sides of the chute 1, and these fixed frames 16, 16 are left and right from the chute 1. Projecting horizontally on both sides, the scabbard spreading regulating plates 9, 9 made of a pair of left and right rectangular plates are provided at the tips of the fixed frames 16, 16 at a certain distance from the spreading disc 2. The anti-spraying agent spraying openings 7a and 8a provided on the fixed scattering prevention plate 7 and the movable scattering prevention plate 8 on the opposite surfaces of the buttock spraying regulation plates 9 and 9 are scattered outside. Each of the antifreezing agents that flow is made to flow and spray the antifreezing agent onto the ridges on the lower road surface.

  As shown in FIG. 4, the flange parting restricting plates 9, 9 are pivotally attached to the tips of the fixed frames 16, 16 so that the upper ends thereof are pivotable in the left-right direction. , 17 and the other ends of the L-shaped arm members 18, 18 having the cylinders 17, 17 piston rods 17a, 17a fixed at one end to the upper ends of the outer side surfaces of the buttocks spreading restricting plates 9, 9 respectively. The piston rod 17a of the cylinder 17 is extended so as to be pivotable, and the collar spraying restricting plate 9 is hung downward and contracted by extending the piston rod 17a of the cylinder 17 to the outer side. It is comprised so that it may open horizontally toward toward.

  In addition, a support plate 20 having a screw hole in which a rotation angle adjusting stopper 19 of the buttock spreading restriction plate 9 is screwed so as to be able to advance and retreat is attached to the distal ends of the fixed frames 16 and 16 on both sides. A rotation restricting projection piece 9a that abuts on and is received by the tip of the stopper 19 is integrally provided on the upper end portion of the collar portion dispersion restricting plate 9 inwardly.

  As shown in FIG. 1, a solution supply pipe 21 having a large number of solution injection nozzles arranged at small intervals in the length direction is disposed so as to cross the upper end opening in the chute 1. The solution supply pipe 21 is connected to and communicated with a solution tank (not shown) mounted on the chassis. The solution pump 22 injects the solution into the chute 1 and drops it onto the chute 1. The powdery dry antifreeze agent is made into a wet antifreeze agent C and dropped onto the spray disc 2.

  In order to spray the wet antifreeze C on the road surface by the antifreeze spraying device configured as described above, first, the wet antifreeze C is applied to the road surface of the right lane in the traveling direction while the spray vehicle is running. 10 and 12, the motor 15 is driven and the movable scattering prevention plate 8 is moved downward through the link mechanism 13 until the upper end surface thereof is positioned below the scattering disk 2 as shown in FIGS. In this way, the space 10 between the spreading disc 2 and the fixed disc 6 is fully opened rearward, and the piston rod 17a of the cylinders 17 and 17 is contracted, so that the buttocks spreading regulating plate 9, 9 is opened horizontally.

  In this state, the dry powdered antifreezing agent in the hopper A is supplied onto the belt conveyor B from the lower end opening of the hopper A while the spreader is traveling at a constant speed, and the conveying end of the belt conveyor B is supplied. The solution to be sprayed into the chute 1 from the part and sprayed from the solution supply pipe 20 is permeated into the antifreezing agent to prepare the wet antifreezing agent C (hereinafter simply referred to as antifreezing agent C), and onto the spraying disc 2 When dropped, the antifreezing agent C is scattered from the spreading disk 2 in all directions by the centrifugal force generated by the rotation of the spreading disk 2. At this time, since the periphery of the space 10 between the upper surface of the front half of the spreading disc 2 and the lower surface of the front half of the fixed disk 6 is closed by the fixed scattering prevention plate 7, the antifreeze agent C is prevented from spreading to the front side by the fixed scattering prevention plate 7, and as shown in FIGS. 12 to 14, the antifreezing agent C is located between the rear ends of both sides of the fixed scattering prevention plate 7 opening rearward. It diffuses (scatters) in the rotational direction of the spreading disc 2 from the opening 7b to the rear, and spreads over the entire road surface of the right lane of the spreading vehicle body 1.

  Next, in order to spread the antifreezing agent C on the buttocks in the traveling lane while running the spreading vehicle, first, the movable scattering prevention plate vertical movement motor 15 is driven and the link mechanism 13 is used to prevent the movable scattering. As shown in FIG. 8, the upper end surface of the plate 8 is brought into contact with the front half periphery of the lower surface of the fixed disc 6. As a result, the fixed scattering prevention plate 7 and the movable scattering prevention plate 8 completely surround the space 10 between the spreading disk 2 and the fixed disk 6 and the fixed scattering prevention plate 7. The anti-freezing agent spraying opening 7a provided on one side of the anti-freezing agent and the anti-freezing agent spraying opening 8a provided on the other side of the movable anti-scattering plate 8 are arranged such that the spraying disk 2 extends from the front end to the rear end. The anti-freezing agent spraying opening 7a of the fixed anti-scattering plate 7 that passes while rotating in the forward direction is positioned on the front side, and generally faces on a diameter line passing through the center of the spraying disk 2.

  Further, the cylinders 15 and 15 on the fixed frames 14 and 14 on both sides are actuated to extend the piston rods 15a and 15a, and the saddle spraying restricting plates 9 on both sides disposed above the saddle on the road surface. Receiving protrusions 9a, 9a integrally provided at the upper end of 9 are brought into contact with the tip of stopper 19 and rotated downward until received. At this time, when the rotation restricting protrusion 9 a of the buttock spraying restriction plate 9 is received by the tip of the stopper 19, the inclination angle of the buttock spraying restriction plate 9 flows into the buttock spraying restriction plate 9. Adjust the receiving position of the rotation restricting protrusion 9a in advance by moving the stopper 19 in the longitudinal direction with respect to the support plate 20 so that the reflected antifreezing agent C is accurately distributed on the collar. Keep it.

  When the antifreezing agent C is dropped onto the spraying disc 2 through the chute 1 while running the sprayer at a constant speed in this state, the antifreezing agent C is sprayed by the centrifugal force generated by the rotation of the spraying disc 2. Antifreezing agent spraying opening 7a provided on one side of fixed scattering prevention plate 7 and the other side of movable scattering prevention plate 8 is a space that scatters from disk 2 to all directions, but from the top of scattering disk 2 to the outside. Since only 8a is present, as shown in FIGS. 4 and 15, the anti-freezing agent spraying openings 7a and 8a are diffused so as to be sprayed in the rotating direction of the spraying disk 2 and are spread on both outer sides of the spraying disk 2. The anti-freezing agent C is intensively sprayed on the buttock below the buttock spraying restriction plates 9, 9, which spills on the opposed surfaces of the buttock spraying restriction plates 9, 9. Can do.

  In the above embodiment, as the means for moving the movable scattering prevention plate 8 in the vertical direction, it is carried out by the master 5 via the link mechanism 13, but as shown in FIGS. It may be configured as follows. That is, the piston rods 23a and 23a of the cylinders 23 and 23 are respectively connected to the outer side surfaces of the both sides of the movable scattering prevention plate 8, and the cylinders 23 and 23 are connected to and supported by the both-side fixed frames 16 and 16, respectively. By moving the piston rods 23a and 23a of the cylinders 23 and 23 on both sides to expand and contract, the movable scattering prevention plate 8 surrounds the front outer peripheral surface of the spreading disc 2, and is moved below the spreading disc 2 to spread the spreading disc 2. You may comprise so that it can change into the state which opened the upper space part toward back.

  In this case, both the front end surfaces of the movable scattering prevention plate 8 are brought into contact with the rear end surfaces of the both sides of the fixed scattering prevention plate 7, and the movable scattering prevention plate 8 is moved up and down using the both rear end surfaces of the fixed scattering prevention plate 7 as a guide. Just keep it. Since other configurations are the same as those of the above-described embodiment, the same portions are denoted by the same reference numerals and detailed description thereof is omitted. In addition, although the space part on the spreading | diffusion disk 2 is open | released back by moving the movable scattering prevention board 8 below, the fixed disk 6 is formed in a small diameter, and the latter half part of this fixed disk 6 Is covered with the inner peripheral surface of the movable scattering prevention plate 8 so that the movable scattering prevention plate 8 is moved upward by the cylinders 23 and 23 to open the space on the scattering disc 2 rearward. You may comprise so that it may make it.

1 Chute 2 Scattering disk 6 Fixed disk 7 Fixed scattering prevention plate 8
7a, 8a Antifreeze spraying opening 9 Saddle spraying restriction plate
13 Link mechanism
14 Rotating axis
15 Motor
16 Fixed frame
19 Stopping angle adjustment stopper

Claims (5)

  In the anti-freezing agent spraying device, in which the anti-freezing agent is put on the spraying disk through the chute and sprayed on the road surface by the rotation of the spraying disk, a constant curve curved in an arc arranged along the outer periphery of the first half of the spraying disk A fixed scattering prevention plate having a height and a movable scattering prevention that can be moved up and down curved along an arc that surrounds the upper space portion of the scattering disk together with the fixed scattering prevention plate disposed along the outer periphery of the latter half of the scattering disk. A plate, a moving means that moves the movable scattering prevention plate up and down to open the space on the spreading disk backward, and a distance from the spreading disk on both sides of the spreading disk Left and right buttocks spreading restricting plates, on one side of the fixed anti-scattering plate and the other side of the movable anti-scattering plate, respectively, Freezing prevention to disperse antifreezing agent Antifreezing agent diffusing apparatus, characterized in that is provided with the spray openings.   Fixed frames of a certain length project outwardly on both sides of the chute, and the upper ends of the left and right buttocks spreading regulating plates are pivotally attached to these fixed frames so as to be rotatable in the left and right directions. The antifreezing agent spraying device according to claim 1, wherein a cylinder for rotating the flange spraying restricting plate is attached to the fixed frame.   The antifreezing agent spraying device according to claim 1 or 2, wherein a stopper for adjusting a rotation angle of the buttocks spraying restriction plate is provided on the fixed frame.   The vertical movement means of the movable anti-scatter plate with respect to the fixed anti-scatter plate is connected to the bracket fixed to the rear end of both sides of the fixed anti-scatter plate so that the front ends of both sides of the movable anti-scatter plate can be moved up and down via a link mechanism. The antifreezing agent spraying device according to claim 1, wherein the link mechanism is configured to be operated by a motor.   The vertical movement means of the movable scattering prevention plate with respect to the fixed scattering prevention plate is configured such that a cylinder is attached to a chute or a fixed frame, and the piston rod of this cylinder is connected to the movable scattering prevention plate to move the movable scattering prevention plate up and down. The antifreezing agent spraying device according to claim 1 or 2, wherein the antifreezing agent spraying device is provided.

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