Spraying vehicle of Anti-freezing agents or Anti-slipping agents

Abstract

To provide a spraying vehicle for an anti-freezing agent or an anti-slipping agent which prevents the passage of the anti-freezing agent or the anti-slipping agent supplied from a hopper to a spraying board from being blocked by the anti-freezing agent or the anti-slipping agent solidified on the guide surface of a movable shooter.SOLUTION: An anti-freeze spray vehicle is provided with a fixed shooter 21 in which a lower end 24 of a path 22 is located rearward of a rear wheel 91 in a vehicle length direction, a spray panel 41 located below the fixed shooter 21, a movable shooter 31 located between the lower end 24 of the path 22 and the spray panel 41 and swingable between a first angle position A1 and a second angle position A2 about a swing axis line 33 extending horizontally, and a cover 51 including a side surface part 52 covering a gap or a guide surface 32 between a locus surface P forming a locus of the upper end 36 of the movable shooter 31 and the fixed shooter 21 from the front.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an anti-freeze or anti-skid agent spreader. [Background technology]

[0002] BACKGROUND ART Patent Document 1 shows a rotating disk type antifreeze agent spraying vehicle that sprays antifreeze agents and the like to prevent freezing and melt snow and ice on road surfaces.

[0003] This antifreeze spraying vehicle includes an upper chute fixed to the hopper's discharge outlet, a lower chute flexibly connected to the lower end of the upper chute, and a rotating disk driven by a rotating disk drive unit. The spray agent discharged from the hopper is guided by the upper and lower chutes and falls onto the rotating disk, where it is dispersed and scattered over the road surface by the centrifugal force of the rotating disk's rotation. The spray width of the spray agent can be adjusted by adjusting the bending angle of the lower chute. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 4-70331 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the antifreeze agent spraying vehicle described in Patent Document 1, the antifreeze agent etc. solidifies on the lower chute when it comes into contact with the moisture in the snow, and the solidified antifreeze agent etc. can sometimes block the passage of the antifreeze agent etc. as it is guided from the hopper to the rotating disk. [Means for solving the problem]

[0006] In order to solve the above problems, a spraying vehicle for antifreeze or anti-slip agent according to one aspect of the present disclosure includes a vehicle body supported by front and rear wheels, a hopper mounted on the vehicle body, containing the antifreeze or anti-slip agent as a spraying agent, and having a discharge outlet that opens downward, a conveyor that feeds the spraying agent contained in the hopper into the discharge outlet, and a fixed chute that includes a passage for the spraying agent discharged from the discharge outlet, the lower end of the passage through which the spraying agent is discharged being located rearward of the rear wheels in the vehicle length direction. The spraying device comprises a spraying plate located below the fixed chute and rotatable around a rotation axis extending in the vertical direction, a movable chute located between the lower end of the passage and the spraying plate and having a guide surface that guides the spray agent discharged from the lower end of the passage to the spraying plate, and capable of swinging between a first angle position and a second angle position around a swing axis extending horizontally, and a cover including a side portion that covers the gap between the trajectory surface that forms the trajectory of the upper end of the movable chute and the fixed chute or the guide surface from the front.

[0007] With this configuration, the spray agent that comes into contact with the moisture in the snow that has entered the gap between the movable chute and the fixed chute solidifies on the guide surface of the movable chute, preventing the solidified spray agent on the guide surface of the movable chute from obstructing the passage of the spray agent supplied from the hopper to the spraying table. [Effects of the Invention]

[0008] One aspect of the present disclosure has the effect of preventing solidified spray agent on the guide surface of the movable chute from obstructing the passage of the spray agent supplied from the hopper to the spraying disc. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a side view showing an example of the configuration of an antifreeze or anti-skid agent spraying vehicle according to a first embodiment. [Figure 2] 2 is a side view showing an example of the configuration of the spraying device of the spraying vehicle of FIG. 1. [Figure 3] 2 is a diagram showing an example of the configuration of the spraying device of the spraying vehicle of FIG. 1, and is a perspective view showing a fixed chute and a cover. FIG. [Figure 4] 2 is a diagram showing an example of the configuration of the spraying device of the spraying vehicle of FIG. 1, and is a diagram showing the front of the spraying device. FIG. [Figure 5] 2 is a diagram showing an example of the configuration of a spraying device of the spraying vehicle of FIG. 1, and is an enlarged view of a main part of FIG. 1. FIG. [Figure 6] 10 is a side view showing an example of the configuration of a spraying device of a spraying vehicle according to a second embodiment. FIG. [Figure 7] FIG. 10 is a diagram showing an example of the configuration of a spraying device of a spraying vehicle according to a third embodiment, showing the front of the spraying device. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments will be described with reference to the drawings. Note that the present invention is not limited to the following embodiments. In addition, the same or corresponding elements will be denoted by the same reference numerals throughout the drawings, and redundant description will be omitted.

[0011] (Embodiment 1) FIG. 1 is a side view showing an example configuration of an antifreeze or anti-skid agent sprayer 100 according to the first embodiment. The sprayer 100 is a vehicle used to spray antifreeze or anti-skid agent on roads, and has a vehicle body 1, front wheels 90 located in front of the vehicle body 1, and rear wheels 91 located in the rear of the vehicle body 1. The vehicle body 1 is equipped with a sprayer 2 that sprays antifreeze or anti-skid agent on roads. The antifreeze sprayed by the sprayer 100 is a granular antifreeze, such as sodium chloride. The anti-skid agent sprayed by the sprayer 100 is also a granular anti-skid agent, such as sand. Hereinafter, the antifreeze and anti-skid agent may be collectively referred to as a sprayer. The forward direction of the sprayer 100 may be referred to as the front, the backward direction as the rear, the left side relative to the forward direction as the left, and the right side relative to the forward direction as the right.

[0012] Fig. 2 is a side view showing an example configuration of the spraying device 2. As shown in Fig. 2, the spraying device 2 is a device that sprays a spraying agent by centrifugal force applied to the spraying agent by a rotating spraying disk 41. The spraying device 2 includes a hopper 11, a conveyor 15, a fixed chute 21, a movable chute 31, the spraying disk 41, a spraying disk drive unit 48, and a cover 51.

[0013] The hopper 11 is a box-shaped container that contains the spray agent. The hopper 11 includes a discharge pipe 12 that protrudes rearward. The discharge pipe 12 has a discharge port 13 that opens downward.

[0014] The conveyor 15 is a transport mechanism that transports the spray agent stored in the hopper 11 horizontally and deposits it into the discharge outlet 13. In this embodiment, the conveyor 15 is a belt conveyor, but is not limited to this and may be a screw conveyor.

[0015] The fixed chute 21 has the function of guiding the spray agent toward the spraying panel 41. The fixed chute 21 is a tubular body, and its upper end 23 is connected to the discharge pipe 12 so as to surround the discharge port 13, extends downward from the upper end 23, and opens at the lower end 24. Note that the fixed chute 21 is not limited to a tubular body, but may also be a plate with a U-shaped cross section and sloping downward. The fixed chute 21 forms a passage 22 for the spray agent that is discharged from the discharge port 13 and descends. The spray agent that is introduced into the discharge port 13 descends through the passage 22 and is discharged from the opening at the lower end 24.

[0016] As shown in FIG. 1, the lower end 24 of the fixed chute 21 is located rearward of the rear wheel 91 in the vehicle length direction. A support portion 26 for supporting the movable chute 31 is provided on the side of the lower end of the fixed chute 21. FIG. 3 is a diagram showing an example configuration of the spraying device 2, and is a perspective view showing the lower end of the fixed chute 21, the movable chute 31, and the cover 51. Note that the spraying disc 41 is omitted from FIG. 3. As shown in FIG. 3, the support portion 26 is formed with two female threads that threadably engage with fastening shafts 81 and 86 having male threads.

[0017] As shown in FIG. 2, the spraying plate 41 is located below the fixed chute 21. The spraying plate 41 includes a spraying plate body 43, a plurality of blades 44 attached to the spraying plate body 43, and a spraying plate cover 45 that covers the spraying plate body 43 from above. The spraying plate body 43 is formed in a disk shape extending on a horizontal plane and is rotatable around a rotation axis 42 that extends vertically at its center. Each blade 44 is a plate-like body that extends radially from the rotation axis 42 on the upper surface of the spraying plate body 43. The lower end of each blade 44 is fixed to the upper surface of the spraying plate body 43 and curves in the rotation direction of the spraying plate body 43 as it extends upward. The spraying plate cover 45 is a cover that prevents the sprayed agent from scattering upward, and is a plate-like body that is circular in plan view and covers the spraying plate body 43 from above. Fig. 4 is a diagram showing an example of the configuration of the spraying device 2, and is a diagram showing the front of the spraying device 2. As shown in Fig. 4, the spraying disc cover 45 has an inlet 46 which is an opening for passing the spray agent falling from above.

[0018] As shown in Figure 2, the spraying disk drive unit 48 is an actuator having a drive shaft that rotates and drives the rotation shaft 42 of the spraying disk 41. The drive shaft of the spraying disk drive unit 48 is connected to the rotation shaft 42 and supports the spraying disk main body 43 in a suspended state. The spraying disk drive unit 48 is fixed to the fixed chute 21, and the spraying disk 41 is fixed to the fixed chute 21 via the spraying disk drive unit 48. In addition, the spraying disk cover 45 is attached, for example, to the housing of the spraying disk drive unit 48 and does not rotate.

[0019] The movable chute 31 guides the descending spray agent and adjusts the position where the spray agent falls onto the sprayer table body 43. The movable chute 31 is swingably attached to the support portion 26 of the fixed chute 21 so as to assume a downwardly inclined posture. The movable chute 31 is disposed between the lower end 24 of the passage 22 of the fixed chute 21 and the sprayer table 41, and is disposed so as to cover the space below the lower end 24 of the passage 22 of the fixed chute 21 from the front. As shown in FIG. 3, the movable chute 31 is a plate-like body with a U-shaped cross section, and has a bottom portion 38 recessed downward and a pair of side portions 39 extending upward from both side edges of the bottom portion 38. The inner surface of the movable chute 31 forms a guide surface 32 that guides and drops the spray agent discharged from the lower end 24 of the passage 22 of the fixed chute 21.

[0020] FIG. 5 is a diagram showing an example of the configuration of the spraying device 2 of FIG. 1, and is an enlarged view of a main portion of FIG. 1. As shown in FIG. 5, the movable chute 31 is fastened to the fixed chute 21 by fastening shafts 81 and 86 extending in the vehicle width direction. The movable chute 31 can swing between a first angular position A1 and a second angular position A2 around a swing axis 33 that extends horizontally and is the central axis of the fastening shaft 81. Specifically, as shown in FIG. 3, each side portion 39 of the movable chute 31 is formed with a circular hole 34 located on the swing axis 33 and an elongated hole 35 that extends in an arc shape in the circumferential direction around the central axis of the circular hole 34. The fastening shaft 81 is inserted into the circular hole 34, and the fastening shaft 86 is inserted into the elongated hole 35. 5, the movable chute 31 can swing between a first angular position A1 in which the fastening shaft 86 is located at one end of the elongated hole 35, and a second angular position A2 in which the fastening shaft 86 is located at the other end of the elongated hole 35. By swinging the movable chute 31, the lower end 37 thereof moves in the front-to-rear direction. At the second angular position A2, the lower end 37 of the movable chute 31 is located closer to the rotation axis 42 of the spraying disc 41 than at the first angular position A1.

[0021] The fastening shafts 81 and 86 are bolts having heads 82, and are capable of fastening and loosening the movable chute 31. That is, by fastening at least one of the fastening shafts 81 and 86, the heads 82 sandwich the movable chute 31 between the fixed chute 21 and the fastening shafts 81 and 86, and press the side portions 39 of the movable chute 31 against the support portion 26. This allows the movable chute 31 to be fixed. Furthermore, by loosening the fastening shafts 81 and 86, the fixed state of the movable chute 31 can be released.

[0022] The cover 51 functions to prevent snow from entering the gap between the upper end 36 of the movable chute 31 and the fixed chute 21. As shown in FIGS. 1 and 2, the cover 51 is attached to the fixed chute 21 and positioned behind the rear wheel 91. That is, the movable chute 31 is positioned between the cover 51 and the fixed chute 21 in the vehicle length direction. As shown in FIG. 3, the cover 51 includes a side portion 52 and an upper portion 54. The side portion 52 is a plate-like body extending in the vertical direction and has a U-shaped cross section. As shown in FIG. 5, when the movable chute 31 is swung between the first angle position A1 and the second angle position A2, the upper end 36 of the movable chute 31 moves in the vertical direction. The side portion 52 is positioned to cover the gap between the fixed chute 21 and a trajectory plane P, which defines the trajectory of the upper end 36 of the movable chute 31, from the front.

[0023] 3, the top surface portion 54 connects the upper end 53 of the side surface portion 52 to the fixed chute 21, and covers the gap between the side surface portion 52 and the fixed chute 21 from above. The side surface portion 52 is partially cut out so that the heads 82 of the fastening shafts 81, 86 are exposed from the cover 51 in a side view of the vehicle. This allows the fastening shafts 81, 86 to be easily fastened and loosened.

[0024] As shown in FIG. 1, a front scattering prevention body 61 is attached to the vehicle body 1. The front scattering prevention body 61 is a component that functions to prevent the agent sprayed from the spraying disc 41 from scattering forward. The front scattering prevention body 61 is a plate-like or curtain-like body that extends in the vehicle width direction, is located behind the rear wheels 91 in the vehicle length direction, and covers the spraying disc 41 from the front. The cover 51 is also located behind the front scattering prevention body 61.

[0025] Next, referring to FIG. 2, the spraying operation of a sprayer vehicle 100 will be described. First, an operator drives the sprayer vehicle 100 and feeds the spray agent into the discharge port 13 using the conveyor 15. The spray agent fed into the discharge port 13 is guided by the fixed chute 21 and descends through the passage 22. The spray agent discharged from the lower end of the passage 22 is guided by the guide surface 32 of the movable chute 31 and dropped from the lower end of the movable chute 31. The spray agent dropped from the lower end of the movable chute 31 passes through the inlet 46 of the sprayer cover 45 and falls onto the front upper surface of the rotating sprayer body 43. The spray agent that falls onto the upper surface of the sprayer body 43 then hits the blades 44 extending radially of the rotating sprayer body 43 and rotates circumferentially around the rotation axis 42 of the sprayer body 43. This causes a centrifugal force acting outward from the rotating shaft 42 to act on the spray agent, causing the spray agent to move radially outward from the sprayer body 43 along the blades 44 and be released from the sprayer body 43.

[0026] The rotational speed of the spraying unit body 43 is predetermined so that the spray agent falls onto the front upper surface of the spraying unit body 43, then rotates approximately half a turn and is sprayed toward the rear of the spraying vehicle 100. At this time, as the falling position of the spraying agent onto the spraying unit body 43 moves away from the rotation axis 42 of the spraying unit body 43 and approaches the periphery of the spraying unit body 43, the distance the spraying agent moves in the radial direction on the spraying unit body 43 becomes shorter, and the spraying agent is quickly released from the spraying unit body 43. Therefore, when the lower end 37 of the movable chute 31 is positioned at the first angle position A1, which is far from the rotation axis 42 of the spraying unit body 43 and close to the periphery of the spraying unit body 43, the spraying agent is sprayed from a position close to the falling position of the spraying agent onto the spraying unit body 43 in the rotation direction of the spraying unit body 43, and the spraying agent can be sprayed on an area on the road surface on one side in the vehicle width direction of the spraying vehicle 100. Furthermore, when the lower end 37 of the movable chute 31 is positioned at the second angular position A2, close to the rotation axis 42 of the sprayer body 43 and far from the periphery of the sprayer body 43, the spray agent is sprayed from a position away from the position where the spray agent falls onto the sprayer body 43 in the rotation direction of the sprayer body 43, and the spray agent can be sprayed to an area on the road surface on the other side in the vehicle width direction of the sprayer vehicle 100. By adjusting the angular position of the movable chute 31 prior to work, the worker can spray the spray agent to the desired area on the road surface.

[0027] During spraying, some of the snow kicked up rearward from the road surface by the rear wheels 91 is scattered toward the fixed chute 21 and the movable chute 31. The gap between the upper end 36 of the movable chute 31 and the fixed chute 21 is located in front of the fixed chute 21, making it easy for the scattered snow to get in. Some antifreeze and anti-slip agents have the property of solidifying upon contact with moisture. Therefore, when the spraying agent passing over the movable chute 31 comes into contact with moisture from melted snow, the spraying agent solidifies on the movable chute 31. This buildup blocks the gap between the fixed chute 21 and the movable chute 31, preventing the passage of the spraying agent supplied to the spraying disc 41. However, in the spraying device 2, the side portion 52 of the cover 51 is positioned to cover the gap between the upper end 36 of the movable chute 31 and the fixed chute 21, thereby blocking the snow scattered toward the fixed chute 21 and the movable chute 31. This prevents scattered snow from getting into the gap between the upper end 36 of the movable chute 31 and the fixed chute 21. It also prevents the spray agent from coming into contact with the moisture in the snow that has gotten into the gap between the upper end 36 of the movable chute 31 and the fixed chute 21 and solidifying on the guide surface 32 of the movable chute 31. It also prevents the spray agent that has solidified on the guide surface 32 of the movable chute 31 from obstructing the passage of the spray agent supplied from the hopper 11 to the spraying disc 41.

[0028] In addition, the upper surface 54 of the cover 51 can block snow that is bounced back by the fixed chute 21 and snow that has peeled off and fallen from the fixed chute 21, effectively preventing snow kicked up by the rear wheel 91 from entering the gap between the upper end 36 of the movable chute 31 and the fixed chute 21.

[0029] In addition, the rotation speed of the sprayer body 43 is adjusted so that the spray agent is sprayed toward the rear of the sprayer vehicle 100. However, some of the spray agent that falls onto the sprayer body 43 may remain on the sprayer body 43 and be released from the sprayer body 43 after a delay, resulting in the agent being scattered toward the front of the sprayer vehicle 100. The spray agent that is scattered toward the front is bounced back by the front scattering prevention body 61 and does not scatter beyond the front scattering prevention body 61. On the other hand, some of the scattered agent that is bounced back is scattered toward the fixed chute 21 and the movable chute 31. When the spray agent that is scattered toward the fixed chute 21 and the movable chute 31 enters the gap between the base end of the movable chute 31 and the fixed chute 21 together with snow, the spray agent solidifies on the movable chute 31, and as this solidifies and accumulates, the gap between the fixed chute 21 and the movable chute 31 is blocked, hindering the passage of the spray agent supplied to the sprayer body 41. However, in the spraying device 2, the side portion 52 of the cover 51 is positioned to cover the gap between the upper end 36 of the movable chute 31 and the fixed chute 21, and is therefore able to block the spraying agent that has scattered toward the fixed chute 21 and the movable chute 31. This prevents the splashed spraying agent from entering the gap between the upper end 36 of the movable chute 31 and the fixed chute 21 together with snow.

[0030] As described above, in the spraying device 2, the side portion 52 of the cover 51 covers from the front the gap or guide surface 32 between the trajectory plane P, which forms the trajectory of the upper end 23 of the movable chute 31, and the fixed chute 21. This prevents the spraying agent that comes into contact with the moisture in the snow that has entered the gap between the upper end 36 of the movable chute 31 and the fixed chute 21 from adhering to the guide surface 32 of the movable chute 31, and prevents the spraying agent solidified on the guide surface 32 of the movable chute 31 from obstructing the passage of the spraying agent supplied from the hopper 11 to the spraying disc 41.

[0031] (Embodiment 2) The following describes the configuration and operation of the second embodiment, focusing on the differences from the first embodiment. Fig. 6 is a side view showing an example of the configuration of a spraying device 202 according to the second embodiment.

[0032] In the above-described first embodiment, the movable chute 31 is disposed so as to cover the space below the lower end 24 of the passage 22 of the fixed chute 21 from the front, and is located in the vehicle length direction between the cover 51 and the fixed chute 21. The cover 51 is formed so as to cover the gap between the fixed chute 21 and the trajectory plane P that defines the trajectory of the upper end 36 of the movable chute 31 from the front.

[0033] In contrast, in this embodiment, the movable chute 231 is arranged to cover the space below the lower end 24 of the passage 22 of the fixed chute 21 from the rear. The cover 251 is formed to cover the guide surface 232 of the movable chute 31 from the front. This allows the cover 251 to block snow that has scattered toward the lower end of the fixed chute 21 and the movable chute 231, preventing the scattered snow from adhering to the guide surface 232 of the movable chute 231. The spraying agent comes into contact with the moisture from the melted snow on the guide surface 232 and solidifies on the guide surface 32 of the movable chute 31, preventing the solidified spraying agent on the guide surface 232 of the movable chute 231 from obstructing the passage of the spraying agent supplied from the hopper 11 to the spraying table 41.

[0034] (Embodiment 3) The following describes the configuration and operation of the third embodiment, focusing on the differences from the first embodiment. Fig. 7 is a side view showing an example of the configuration of a spraying device 302 according to the third embodiment.

[0035] In the above-described first embodiment, the movable chute 31 is disposed so as to cover from the front the space below the lower end 24 of the passage 22 of the fixed chute 21. The cover 51 is formed so as to cover from the front the gap between the fixed chute 21 and the trajectory plane P that defines the trajectory of the upper end 36 of the movable chute 31.

[0036] In contrast, in this embodiment, the movable chute 331 is arranged to cover the space below the lower end 24 of the passage 22 of the fixed chute 21 from the side. The cover 351 is formed to cover the gap between the trajectory plane P (see FIG. 5) that forms the trajectory of the upper end 336 of the movable chute 331 and the fixed chute 21, or the guide surface 332 of the movable chute 331 from the side. This allows the cover 351 to block snow that has scattered toward the lower end of the fixed chute 21 and the movable chute 331. The spraying agent comes into contact with the moisture in the melted snow and solidifies on the guide surface 332 of the movable chute 331, preventing the solidified spraying agent on the guide surface 332 of the movable chute 331 from obstructing the passage of the spraying agent supplied from the hopper 11 to the spraying table 41.

[0037] (Fourth embodiment) In the above-described first embodiment, the movable chute 31, the spraying disc 41, the spraying disc drive unit 48, and the cover 51 are attached to the fixed chute 21. However, instead of this, the movable chute 31, the spraying disc 41, the spraying disc drive unit 48, or the cover 51 may be attached to a support member attached to the vehicle body 1.

[0038] From the above description, many modifications and other embodiments of the present invention will be apparent to those skilled in the art. Therefore, the above description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode for carrying out the present invention. Details of the structure and / or function thereof may be substantially changed without departing from the spirit of the present invention.

[0039] (List of embodiments) (Form 1) a vehicle body supported by the front and rear wheels; a hopper mounted on the vehicle body, containing an antifreeze or anti-skid agent as a spray agent, and having a discharge port opening downward; a conveyor that feeds the spray agent contained in the hopper into the discharge outlet; a fixed chute including a passage for the spray agent discharged from the discharge port, the lower end of the passage through which the spray agent is discharged being located rearward of the rear wheel in the vehicle length direction; A spreading plate that is rotatable around a rotation axis extending in the vertical direction and is located below the fixed chute; A movable chute is located between the lower end of the passage and the spraying plate, has a guide surface that guides the spraying agent discharged from the lower end of the passage to the spraying plate, and is swingable between a first angular position and a second angular position around a swing axis extending horizontally; A vehicle for spraying antifreeze or anti-slip agent, comprising a cover including a side portion that covers the gap between the trajectory surface that forms the trajectory of the upper end of the movable chute and the fixed chute or the guide surface from the front.

[0040] With this configuration, the spray agent that comes into contact with the moisture in the snow that has entered the gap between the movable chute and the fixed chute solidifies on the guide surface of the movable chute, preventing the solidified spray agent on the guide surface of the movable chute from obstructing the passage of the spray agent supplied from the hopper to the spraying table.

[0041] (Form 2) An antifreeze or anti-slip agent spraying vehicle as described in claim 1, wherein the lower end of the movable chute is located closer to the rotation axis of the spraying table at the second angular position than at the first angular position.

[0042] With this configuration, by adjusting the angular position of the movable chute, the agent can be sprayed onto a desired area on the road surface.

[0043] (Form 3) the movable chute covers a space below a lower end of the passage of the fixed chute from the front, An antifreeze or anti-slip agent sprayer vehicle as described in form 1, wherein the side portion covers the gap between the track surface and the fixed chute from the front.

[0044] With this configuration, even when the movable chute is positioned in a position where snow can easily get into the gap between the base end of the movable chute and the fixed chute, snow can be effectively prevented from getting into the gap.

[0045] (Form 4) An antifreeze or anti-slip agent spraying vehicle as described in aspect 3, wherein the movable chute is located between the cover and the fixed chute in the vehicle length direction.

[0046] With this configuration, even when the movable chute is positioned in a position where snow can easily get into the gap between the base end of the movable chute and the fixed chute, snow can be effectively prevented from getting into the gap.

[0047] (Form 5) An antifreeze or anti-slip agent spraying vehicle as described in aspect 3, wherein the cover further includes an upper surface portion that covers the gap between the side portion and the fixed chute from above.

[0048] This configuration more effectively prevents snow from entering the gap between the base end of the movable chute and the fixed chute.

[0049] (Form 6) An antifreeze or anti-skid agent spraying vehicle as described in form 1, wherein the cover is located behind the rear wheels.

[0050] This configuration effectively prevents snow kicked up by the rear wheel from entering the gap between the base end of the movable chute and the fixed chute.

[0051] (Form 7) Further provided is a front scattering prevention body located behind the rear wheel in the vehicle length direction, covering the spraying plate from the front and extending in the vehicle width direction, An antifreeze or anti-slip agent spraying vehicle as described in form 1, wherein the cover is located behind the front anti-scattering body.

[0052] With this configuration, even in situations where the spray agent that scatters forward from the spraying disc and is bounced back by the forward scattering prevention section is likely to enter the gap between the base end of the movable chute and the fixed chute along with snow, the spray agent can be effectively prevented from entering the gap.

[0053] (Form 8) An antifreeze or anti-slip agent spraying vehicle as described in form 1, wherein the movable chute and the cover are attached to the fixed chute.

[0054] This configuration simplifies the mounting structure for the movable chute and cover, reducing the adhesion of snow and spray agent to the mounting structure.

[0055] (Form 9) a fastening shaft that fastens the movable chute to the fixed chute and extends in the vehicle width direction; An antifreeze or anti-slip agent sprayer vehicle as described in form 1, wherein the fastening shaft has a head that clamps the movable chute between the movable chute and the fixed chute, and is exposed from the cover when viewed from the side of the vehicle.

[0056] With this configuration, when adjusting the angular position of the movable chute, the presence of the cover can be prevented from interfering with the adjustment work. [Explanation of symbols]

[0057] P trajectory plane 1. Body 2 Spraying device 11 Hopper 13 Outlet 15 Conveyor 21 Fixed Shooter 22 Passage 23 Top 24 Bottom end 31 Movable shooter 32 Guide surface 33 Swing axis 41 Spreader 51 Cover 52 Side part 53 top 54 Upper face 91 rear wheel 100 Disperser

Claims

1. a vehicle body supported by the front and rear wheels; a hopper mounted on the vehicle body, containing an antifreeze or anti-skid agent as a spray agent, and having a discharge port opening downward; a conveyor that feeds the spray agent contained in the hopper into the discharge outlet; a fixed chute including a passage for the spray agent discharged from the discharge port, the lower end of the passage through which the spray agent is discharged being located rearward of the rear wheel in the vehicle length direction; A spreading plate that is rotatable around a rotation axis extending in the vertical direction and is located below the fixed chute; a movable chute located between the lower end of the passage and the spraying plate, having a guide surface for guiding the spraying agent discharged from the lower end of the passage to the spraying plate, and capable of swinging between a first angular position and a second angular position around a swing axis extending horizontally; A vehicle for spraying antifreeze or anti-slip agent, comprising a cover including a side portion that covers the gap between the trajectory surface that forms the trajectory of the upper end of the movable chute and the fixed chute or the guide surface from the front.

2. 2. The antifreeze or anti-skid agent spraying vehicle according to claim 1, wherein the lower end of the movable chute is located closer to the rotation axis of the spraying table in the second angular position than in the first angular position.

3. the movable chute covers a space below a lower end of the passage of the fixed chute from the front, The antifreeze or anti-skid agent sprayer according to claim 1 , wherein the side portion covers a gap between the track surface and the fixed chute from the front.

4. 4. The antifreeze or anti-skid agent spraying vehicle according to claim 3, wherein the movable chute is located between the cover and the fixed chute in the vehicle length direction.

5. The antifreeze or anti-skid agent spraying vehicle according to claim 3 , wherein the cover further includes an upper surface portion that covers the gap between the side portion and the fixed chute from above.

6. 2. The antifreeze or anti-skid agent spraying vehicle according to claim 1, wherein the cover is located behind the rear wheels.

7. Further provided is a front scattering prevention body located behind the rear wheel in the vehicle length direction, covering the spraying plate from the front and extending in the vehicle width direction, 2. The antifreeze or anti-skid agent spraying vehicle according to claim 1, wherein the cover is located behind the front anti-scattering body.

8. The antifreeze or anti-skid agent spraying vehicle according to claim 1 , wherein the movable chute and the cover are attached to the fixed chute.

9. a fastening shaft that fastens the movable chute to the fixed chute and extends in the vehicle width direction; 2. The antifreeze or anti-skid agent spraying vehicle according to claim 1, wherein the fastening shaft has a head that sandwiches the movable chute between the movable chute and the fixed chute, and is exposed from the cover in a side view of the vehicle.

Images