Spray apparatus

Abstract

To provide an apparatus for spraying a material to be sprayed, capable of being safely operated even when snow is accumulated.SOLUTION: And a hydraulic area 5 in which the hydraulic mechanism part 4 is arranged, wherein the hydraulic mechanism part includes a hydraulic tank 41 in which hydraulic oil is stored, and a hydraulic hose 42 connected to the hydraulic tank 41 and configured to transmit the hydraulic oil, and the hydraulic area 5 includes a tank arrangement area 51 in which the hydraulic tank 41 is arranged, and a hose routing area 53 in which the hydraulic hose 42 is routed, and includes a cover part 9 configured to cover at least a part of the hose routing area 53 from above.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a scattering device. [Background technology]

[0002] An example of an antifreeze spraying vehicle in which a spraying device is mounted on a vehicle is that described in Patent Document 1. This antifreeze spraying vehicle is equipped with a hydraulic pump, a truck chassis, an engine, a transmission, a PTO, a travel transmission, a hydraulic valve, a conveyor motor, a conveyor, a hopper, a chute, a disk drive motor, and a spraying disk.

[0003] The power obtained by the engine is transmitted to the PTO via the transmission. The power obtained by the engine is also transmitted to the travel transmission via the transmission. The rotating shaft of the PTO is connected to the hydraulic pump, and when the engine is running, the rotating shaft of the PTO rotates and transmits power to the hydraulic pump. The hydraulic pump generates pressurized oil using the power from the PTO. The hydraulic oil discharged by the hydraulic pump is transmitted to the conveyor motor and the disk drive motor via the hydraulic valve.

[0004] The conveyor rotates as the rotating shaft of the conveyor motor rotates. The antifreeze stored in a hopper is sent out to the rear of the vehicle by the rotating conveyor. The antifreeze sent out to the rear of the vehicle is dropped into the chute attached to the truck chassis. The antifreeze dropped into the chute is dropped onto the spraying disk, which is located below the chute and rotated by a disk drive motor. The antifreeze is sprayed by the centrifugal force generated by the rotation of the spraying disk.

[0005] In such antifreeze spraying vehicles, the hydraulic oil discharged by the hydraulic pump is transmitted through a hydraulic circuit composed of hoses, etc., but when spraying antifreeze in cold regions, for example, if snow accumulates on the hydraulic circuit and makes it invisible, it can be dangerous for the worker to trip over the hose, etc. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-144888 Summary of the Invention [Problem to be solved by the invention]

[0007] SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a scattering material spraying device that allows safe operation even when there is snow accumulation or the like. [Means for solving the problem]

[0008] The scattering material spraying device of the present invention comprises a hopper for storing scattering material, a spraying device for spraying the scattering material stored in the hopper, a hydraulic mechanism unit for driving the hopper and the spraying device, and a hydraulic area in which the hydraulic mechanism unit is arranged, the hydraulic mechanism unit comprising a hydraulic tank for storing hydraulic oil and a hydraulic hose connected to the hydraulic tank for transmitting the hydraulic oil, the hydraulic area comprising a tank arrangement area in which the hydraulic tank is arranged and a hose routing area in which the hydraulic hose is routed, and a cover unit for covering the upper part of at least a portion of the hose routing area.

[0009] According to the present invention, a cover is provided that covers the upper part of at least a part of the hose routing area, so that even if a worker works above the hose routing area, at least a part of the hydraulic hose is covered by the cover, making it difficult for the worker to trip over it, and therefore the worker can work safely even if snow accumulates.

[0010] In addition, the scattering material spraying device of the present invention is configured so that the scattering material spraying device can be mounted on a vehicle equipped with a snow removal board, and the hydraulic hose includes a hydraulic hose for the snow removal board for transmitting hydraulic oil to the snow removal board, and the hydraulic hose for the snow removal board may be routed in the hose routing area.

[0011] According to the above configuration, the hydraulic hose for the snow removal board is also routed in the hose routing area, so the cover portion can prevent feet from getting caught on the hydraulic hose for the snow removal board and snow from accumulating on the hose, allowing for safe work.

[0012] In addition, the scattering material spraying device of the present invention may be configured so that the hydraulic mechanism unit includes one hydraulic tank, and the hydraulic hose includes a spraying hydraulic hose that transmits hydraulic oil from the one hydraulic tank to the spraying device, and a snow removal board hydraulic hose that transmits hydraulic oil from the one hydraulic tank to the snow removal board.

[0013] As described above, hydraulic oil can be transmitted from a single hydraulic tank to the spraying device and snow removal plate, improving space efficiency in the hydraulic area.

[0014] In addition, the scattering material spraying device of the present invention is configured so that the scattering material spraying device can be mounted on a vehicle having at least one of a transmission and a power take-off device, and when mounted, at least the hose routing area of ​​the hydraulic area may be positioned near at least one of the transmission and the power take-off device of the vehicle.

[0015] As described above, the hose routing area is disposed near at least one of the transmission and the power take-off device, which become warm in the vehicle, so that the hydraulic hoses routed in the hose routing area are warmed by at least one of the transmission and the power take-off device.

[0016] In addition, the present invention may provide a scattering material spraying device in which the covering portion is positioned adjacent to the hopper at a position below the top surface of the hopper, and is provided with a ladder portion that is raised from the covering portion and hung on the hopper, and a mounting member that can be removably placed in the space above the covering portion on the hopper side of the ladder portion in the adjacent direction in which the covering portion and the hopper are adjacent, and on the ladder portion side of the hopper.

[0017] As described above, the space above the cover, which is closer to the hopper than the ladder section in the direction in which the cover and the hopper are adjacent, and closer to the ladder section than the hopper, can be effectively used as a mounting space for the mounting member.

[0018] In addition, in the scattering material spraying device of the present invention, the placement member may be placed near an end in a width direction perpendicular to the adjacent direction and the up-down direction in the space of the cover portion.

[0019] As described above, the mounting member placed near the end in the width direction perpendicular to the adjacent direction and the up-down direction in the space of the covering portion can be handled from the outside in the width direction of the space.

[0020] In addition, the present invention may provide a scattering material spraying device that is configured to be mounted on a vehicle having a chassis frame, and the covering portion may be arranged above the chassis frame so as to extend outward beyond the chassis frame in the vehicle width direction, and a side bumper may be provided so as to extend downward from the portion of the covering portion that extends outward beyond the chassis frame.

[0021] As described above, by providing the side bumper to extend downward from a portion of the cover portion that extends outward from the chassis frame, there is no need for a stay that extends outward from the chassis frame to support the side bumper, which is advantageous in terms of structure. [Effects of the Invention]

[0022] The present invention provides a spraying device that can be used safely even when there is snow or other debris by providing a cover that covers the upper part of at least a portion of the hose routing area. [Brief explanation of the drawings]

[0023] [Figure 1] FIG. 1 is a side view of a wet salt spreader. [Figure 2] FIG. 1 is a plan view of a wet salt spreader. [Figure 3] This is a partially cutaway rear view of a wet salt spreader. [Figure 4] FIG. 2 is a side view of a hopper provided in the scattering material scattering device. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. [Figure 7] FIG. 2 is a plan view of a work floor provided in the scattering material scattering device. [Figure 8] FIG. [Figure 9] FIG. 2 is a side view of the vehicle equipped with the work platform. [Figure 10] 10 is a view seen from the X direction in FIG. 9. FIG. [Figure 11] FIG. 2 is a perspective view of the main part showing the chute and the disk. [Figure 12] FIG. [Figure 13] 13 is a cross-sectional view taken along line XIII-XIII in FIG. 12. [Figure 14] 14 is a bottom view of the main part as seen from the direction XIV in FIG. 13. [Figure 15] 1A and 1B are side views showing two tilted states of the disk. [Figure 16] FIG. [Figure 17] FIG. [Figure 18] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, one embodiment of a scatter vehicle equipped with a scatter spraying device will be described with reference to the drawings. In this embodiment, as shown in Figures 1 and 2, a wet salt spraying device 1 that spreads wet salt is used as the scatter spraying device, and is mounted on a vehicle to form a wet salt spreader vehicle 10. In the following description, the front-to-rear direction of the vehicle is referred to as the front-to-rear direction, and the width direction of the vehicle is referred to as the left-to-right direction.

[0025] As shown in Figures 1 and 6, the wet salt spreader vehicle 10 comprises an engine 11, a pair of left and right chassis frames 12, 12 (only the left side is shown in Figure 1) for mounting the wet salt spreader device 1, a PTO (power take-off) shaft 13 for transmitting the power obtained by the engine 11, and a hydraulic pump (oil pump) 15 connected to the output side of the PTO shaft 13 and supplied with hydraulic oil from a hydraulic tank 41 (see Figure 2) described later.

[0026] As shown in Figures 1 and 7, the wet salt spreader 1 comprises a hopper 2 for storing salt to be spread, a spreader 3 for spreading the salt stored in the hopper 2, a hydraulic mechanism 4 for driving the hopper 2 and the spreader 3, and a hydraulic area 5 in which the hydraulic mechanism 4 is located.

[0027] 3 to 5, the hopper 2 includes a storage section 21 for storing salt added from above, a belt conveyor 22 provided below the storage section 21 for moving the salt in the storage section 21 rearward, a belt conveyor hydraulic motor 23 for rotating the belt conveyor 22, and a solenoid valve (provided in the manifold solenoid valve D shown in FIGS. 6 and 7) for driving and stopping the belt conveyor hydraulic motor 23. In this embodiment, a belt conveyor type is used as the conveying device for transporting the material to be scattered, but a bucket conveyor type, screw type, etc. may also be used.

[0028] As shown in Figure 11, the spraying device 3 comprises a receiving section 24 having a receiving port 24A formed therein for receiving salt transported from the belt conveyor 22 (see Figure 5), a chute 31 for guiding the salt from the receiving section 24 downward, and a disk 32 as a base having a mounting surface 32A for mounting the salt dropped by the chute 31 and rotatable around a rotation center line (vertical axis) Y2 perpendicular to the mounting surface 32A.

[0029] The chute 31 is formed with water supply ports (not shown) that supply water from multiple (four in total in this embodiment) water tanks 33 (see FIGS. 1 and 3) serving as solution tanks, located on both the left and right sides of the hopper 2. Therefore, salt from the belt conveyor 22 and water from the water supply ports are mixed in the chute 31, resulting in a sherbet-like wet salt that falls onto the disks 32. The disk hydraulic motor M1 (see FIG. 11) is driven by switching a solenoid valve (provided on the manifold solenoid valve D shown in FIGS. 6 and 7), which rotates the disks 32, thereby dispersing the wet salt onto the ground. Spreading the sherbet-like wet salt as described above is expected to improve adhesion to the ground and provide immediate anti-freezing effects. Furthermore, water from the water tanks 33 is supplied to the water supply ports of the chute 31 by driving the solution (water) pump 14 (see FIG. 6) by switching a solenoid valve (provided on the manifold solenoid valve D shown in FIGS. 6 and 7). In this embodiment, the rotation speed of the disk 32 increases as the vehicle speed increases, and decreases as the vehicle speed decreases. Alternatively, the rotation speed of the disk 32 may be maintained at a constant low rotation speed when the vehicle speed is low, and at a constant high rotation speed when the vehicle speed is high, with the rotation speed increasing stepwise depending on the vehicle speed between low and high. Preferably, the salt transport speed of the belt conveyor 22 and the water supply rate of the solution (water) pump 14 increase as the vehicle speed increases, and the salt transport speed of the belt conveyor 22 and the water supply rate of the solution (water) pump 14 decrease as the vehicle speed decreases.

[0030] 12 and 13, the disk (base portion) 32 is configured in a disk shape and includes an inner portion 321 that is horizontal and located radially inward, and an outer portion 322 that slopes upward as it moves radially outward from the outer periphery of the inner portion 321. A reinforcing disk-shaped plate 323 (see FIG. 13) is provided on the underside of the inner portion 321. The disk 32 also includes a guide portion 35 that guides the wet salt on the mounting surface 32A radially outward.

[0031] The guide sections 35 are provided at four locations around the circumference of the disk 32, so that the wet salt dropped by the chute 31 is stored in the storage spaces divided into four equal parts by the guide sections 35. The guide sections 35 provided at each location have the same configuration. The guide sections 35 provided at each location have three blades 351, 352, 353 that are aligned radially and attached by bolts. In this embodiment, the guide sections 35 are provided at four locations around the circumference of the disk 32 so as to divide the storage spaces into four, but they may also be provided at two, three, or five or more locations. The more storage spaces there are, the more likely it is that the amount of wet salt stored in each storage space will be uniform, which is preferable. In this embodiment, four locations are provided.

[0032] The first blade 351 located radially inward includes a vertically long, plate-like vertical wall portion 351A erected relative to the mounting surface 32A, and an attachment plate portion 351B extending horizontally from the lower end of the vertical wall portion 351A for bolting the vertical wall portion 351A to the inner portion 321 of the disk 32. The second blade 352 located radially outward from the first blade 351 includes a horizontally long, plate-like vertical wall portion 352A formed with a radial dimension larger than that of the first blade 351, and an attachment plate portion 352B extending horizontally from the lower end of the vertical wall portion 352A for bolting the vertical wall portion 352A to the inner portion of the outer portion 322 of the disk 32. The third blade 353, which is positioned radially outward of the second blade 352, is erected on the outer portion of the outer part 322 of the disk 32 and is composed of a pair of variable guide parts 353A, 353A rotatably attached by a pin 36. The first blade 351 and the second blade 352 constitute a fixed guide part.

[0033] Each variable guide unit 353A includes a vertical wall portion 353a, which is a substantially square, plate-like vertical wall having a radial dimension larger than that of the first blade 351 and smaller than that of the second blade 351, and an attachment plate portion 353b extending horizontally from the lower end of the vertical wall portion 353a for attaching the vertical wall portion 353a to the outer portion of the outer portion 322 of the disk 32. Each variable guide unit 353A is configured to be rotatable within an arc-shaped elongated hole 322A formed in the outer portion 322 of the disk 32 by a bolt B and a wing nut N, and is configured to be rotatable within the range of the elongated hole 322A by driving an actuator (not shown). Therefore, the wet salt that has fallen into the storage space moves to the outer periphery of the disk 32 via the first blade 351, the second blade 352, and the variable guide units 353A, 353A, due to the centrifugal force generated by the rotation of the disk 32. At this time, when the variable guide portions 353A, 353A are rotated toward each other in a closed position, the wet salt hardly comes into contact with the variable guide portions 353A, 353A and is scattered outside the disk 32, shortening the distance the wet salt flies. In contrast, when the variable guide portions 353A, 353A are rotated away from each other in an open position, the wet salt comes into contact with the variable guide portions 353A, 353A and is then scattered outside near the outer periphery of the disk 32, lengthening the distance the wet salt flies. Although the variable guide portions 353A, 353A are formed in a flat plate shape in Figures 12 and 13, they may be twisted to form a curved shape that makes it easier to hold the wet salt and increase the distance the wet salt flies. Furthermore, the vertical wall portions 351A, 352A of the fixed guide portions 351, 352 may be configured with a vertical portion extending straight to the upper end and a curved portion curving in an arc from the upper end of the vertical portion, thereby increasing the throw distance of the wet salt also in the fixed guide portions 351, 352. As the actuator, in addition to a hydraulic cylinder, an air cylinder or an electric cylinder can be used.

[0034] The second and third blades 352 and 353 attached to the outer portion 322 of the disk 32 are configured so that their vertical widths decrease as they are positioned radially outward. The upper ends of the first, second, and third blades 351, 352, and 353 are aligned horizontally in a straight line. Furthermore, by configuring the second and third blades 352 and 353 so that their vertical widths decrease as they are positioned radially outward, the wet salt that strikes the upper portions of the blades falls nearby because it is less susceptible to the rotational energy of the disk 32, while the wet salt that strikes the lower portions of the blades is more susceptible to the rotational energy of the disk 32 and can be thrown farther. This allows the wet salt to be dispersed in the front-to-rear direction and supplied to the road surface. Furthermore, the upper end of the vertical wall portion 352A of the second blade 352, which is the far end from the mounting surface 32A, is formed with a notch 352K to avoid collision with a protrusion (bolt B1) (described later) that protrudes downward from above the guide portion 35. This notch 352K is a recessed portion recessed downward. Also, a diagonally cut notch 351K (see FIG. 13) is formed in the upper corner of the radially outer end of the first blade 351.

[0035] As described above, by forming the notch 352K in the vertical wall portion 352A of the second blade 352 of the guide portion 35, it is possible to prevent the guide portion 35 from colliding with the protrusion (bolt B1) described below while the guide portion 35 is rotating. In addition, since the disk (base portion) 32 and the guide portion 35 can be positioned higher from the ground by the amount of the notch 352K, it is easy to ensure the scattering height of the scattering material from the disk (base portion) 32. In addition, by positioning the opposing surface 371B of the top plate portion 371 and the mounting surface 32A closer to each other by the amount of the notch in the guide portion 35, it is possible to reduce the gap between the opposing surface 371B and the guide portion 35. Therefore, while the guide portion 35 is rotating, it is possible to avoid the collision of the guide portion 35 with the protrusion (bolt B1) described below while preventing the scattering material from climbing over the guide portion 35 through the gap, thereby preventing uneven scattering of the scattering material and ensuring reliable scattering of the scattering material.

[0036] As shown in Figures 13, 16, and 17, the disk 32 is covered by a casing 37. The casing 37 has a facing surface 371B facing the mounting surface 32A and includes a disk-shaped top plate 371 serving as an upper cover disposed above the guide portion 35, and side plate portions 372 that are arc-shaped in plan view and extend downward from the outer periphery of the top plate 371. The side plate portions 372 cover the front and left and right sides except the rear. The top plate 371 is fixed to a fixing member 39 provided on the vehicle body by a bolt B1 and a nut N1 that penetrate both. The bolt B1 protrudes downward from the underside of the top plate 371, and is a protrusion that protrudes downward from above toward the guide portion 35. An opening 371K is formed in the top plate 371 at a position forward of the center thereof to receive the wet salt from the chute 31.

[0037] The side plate 372 includes a front plate 372A that covers the front, and movable left and right plate portions 372B, 372B that extend rearward from the left and right ends of the front plate 372A and are rotatable via hinges H. The left plate 372B or the right plate 372B is rotatable within an arc-shaped elongated hole 371A formed in the top plate 371 by a bolt B2 and a wing nut N2, and can be rotated outward up to a maximum rotation angle (see the two-dot chain line in Figure 16) by driving an actuator (not shown). A hydraulic cylinder, an air cylinder, or an electric cylinder can be used as the actuator. The bolt B2 is a single, approximately U-shaped bolt.

[0038] The disk (base) 32 is also configured to be tilted from a reference position (horizontal position, see FIG. 13 ) in which the mounting surface 32A faces a reference direction (horizontal). Specifically, the drive shaft 38 that rotates the disk (base) 32 can be tilted from a vertical position along the vertical direction to a first tilted position (see solid lines in FIG. 15 ) in which the lower end is positioned forward of the upper end, or to a second tilted position (see two-dot chain lines in FIG. 15 ) in which the lower end is positioned rearward of the upper end, as shown in a side view of FIG. 15 . Compared to the first tilted position (in which the rear side of the disk 32 is lower than the front side), the second tilted position (in which the rear side of the disk 32 is higher than the front side) allows the wet salt to be sprayed farther, thereby increasing the width of the wet salt spray. Although not shown, a ball joint is connected to the drive shaft 38, and the ball joint allows the drive shaft 38 to be tilted. The driving rotation shaft 38 is changed to an inclined position by an actuator, and as the actuator, a hydraulic cylinder, an air cylinder, or an electric cylinder can be used.

[0039] 18, the apparatus includes angle change means 43 that drives to change the angle of variable guide portions 353A, 353A, attitude change means 44 that drives to change the attitude of mounting surface 32A of disc (base portion) 32, and drive instruction means 45 that instructs angle change means 43 and attitude change means 44 to drive or stop driving. As described above, angle change means 43 and attitude change means 44 are configured by actuators such as hydraulic cylinders.

[0040] The drive instruction means 45 includes an operation unit 46 that outputs a change signal in response to a change instruction operation, and a drive control unit 47 that controls the drive of the angle change means 43 and the attitude change means 44 by acquiring the change signal output by the operation unit 46. Therefore, by driving the angle change means 43 in response to a drive instruction from the drive instruction means 45, the angle of the vertical wall portions 353a, 353a of the variable guide portions 353A, 353A can be changed, thereby adjusting the flight distance of the scattered material when the guide portion 35 is rotated to scatter the scattered material. In addition, by driving the attitude change means 44 in response to a drive instruction from the drive instruction means 45, the attitude of the mounting surface 32A can be changed, thereby adjusting the distance and direction of scattering of the scattered material.

[0041] The operation unit 46 is composed of, for example, a switch provided on an operation panel provided in the driver's cab 16 or a remote controller that can be operated remotely, and when a person operates the switch or remote controller to issue a change instruction, a change signal is output to the drive control unit 47, and the drive control unit 47 drives and controls the angle change means 43 and the attitude change means 44 based on the output signal. Therefore, by operating the operation unit 46 to issue a change instruction, the drive control unit 47 drives and controls the angle change means 43 that changes the angle of the variable guide unit 35 and the attitude change means 44 that changes the attitude of the disk (base) 32, so that the state of scattering of the scattering material can be changed with a simple operation.

[0042] In addition, at the end of the salt conveying direction of the belt conveyor 22, a gate 40 (see Figure 6) for opening and closing an opening (not shown) for discharging salt into the chute 31 is provided in the hopper 2 so as to be able to open and close. By switching an electromagnetic valve (provided on the manifold electromagnetic valve D shown in Figures 6 and 7), a hydraulic cylinder (not shown) for the gate is extended and retracted, thereby controlling the opening and closing of the gate 40, and the amount of salt dispensed into the chute 31 can be adjusted.

[0043] When a spraying vehicle equipped with a spraying device is traveling and spraying a spray material (wet salt in this embodiment), some or all of the following are automatically controlled based on the various signals output: the speed of the belt conveyor 22, the opening of the gate 40, the rotation speed of the solution pump 14, the opening of the solution valve, the rotation speed of the disk 32, the opening of the variable guide sections 353A, 353A, the rotation angle of the left and right plate sections 372B, 372B of the casing 37, and the attitude of the disk 32. This automatic control will now be described.

[0044] For example, if a signal is output when the accelerator pedal is depressed more, and the traveling speed becomes faster than the current traveling speed, the speed of belt conveyor 22 is made faster than the speed of belt conveyor 22 before the traveling speed increased, the opening of gate 40 is made wider than the opening of gate 40 before the traveling speed increased, the rotation speed of solution pump 14 is made faster than the rotation speed of solution pump 14 before the traveling speed increased, and the opening of the solution valve is made wider than the opening of the solution valve before the traveling speed increased, thereby automatically controlling to increase the amount of wet salt supplied, and automatically controlling the rotation speed of disk 32 to be faster than the rotation speed of disk 32 before the traveling speed increased, so that the amount sprayed per unit area remains the same even when the traveling speed increases.

[0045] Conversely to the above, if a signal is output when the accelerator pedal depression amount decreases and the traveling speed becomes slower than the current traveling speed, the speed of the belt conveyor 22 is made slower than the speed of the belt conveyor 22 before the traveling speed slowed, the opening of the gate 40 is made narrower than the opening of the gate 40 before the traveling speed slowed, the rotation speed of the solution pump 14 is made slower than the rotation speed of the solution pump 14 before the traveling speed slowed, and the opening of the solution valve is made narrower than the opening of the solution valve before the traveling speed slowed, thereby controlling to reduce the amount of wet salt required to be supplied, and automatically controlling the rotation speed of the disk 32 to be slower than the rotation speed of the disk 32 before the traveling speed slowed, so that the amount sprayed per unit area remains the same even if the traveling speed slows.

[0046] Furthermore, when a signal to increase the spreading width of the spreading material is output, the speed of the belt conveyor 22 is made faster than the speed of the belt conveyor 22 before the signal was output, the opening of the gate 40 is made wider than the opening of the gate 40 before the signal was output, the rotation speed of the solution pump 14 is made faster than the rotation speed of the solution pump 14 before the signal was output, and the opening of the solution valve is made wider than the opening of the solution valve before the signal was output, thereby controlling to increase the required amount of wet salt supply, and the rotation speed of the disk 32 is made faster than the rotation speed of the disk 32 before the signal was output. The rotation speed is made faster than that of the previous disc 32, the opening of the variable guide sections 353A, 353A is made wider than the opening of the variable guide sections 353A, 353A before the signal is output, the rotation angle of the left and right plate sections 372B, 372B of the casing 37 is made wider than the rotation angle of the left and right plate sections 372B, 372B before the signal is output, and the attitude of the disc 32 is automatically controlled to change to a second inclined attitude (disc 32 rearward upward) more than the attitude of the disc 32 before the signal is output, thereby increasing the spreading width of the scattered material.

[0047] Furthermore, when a signal to reduce the spray width of the spray material is output, the speed of the belt conveyor 22 is slowed down compared to the speed of the belt conveyor 22 before the signal was output, the opening of the gate 40 is narrowed down compared to the opening of the gate 40 before the signal was output, the rotation speed of the solution pump 14 is slowed down compared to the rotation speed of the solution pump 14 before the signal was output, and the opening of the solution valve is narrowed down compared to the opening of the solution valve before the signal was output, thereby controlling to reduce the required amount of wet salt supply, and the rotation speed of the disk 32 is controlled to reduce the rotation speed of the disk 32 before the signal is output. The rotation speed is slower than that of the previous disc 32, the opening of the variable guide sections 353A, 353A is made closer to the opening of the variable guide sections 353A, 353A before the signal is output, the rotation angle of the left and right plate sections 372B, 372B of the casing 37 is made narrower than the rotation angle of the left and right plate sections 372B, 372B before the signal is output, and the attitude of the disc 32 is automatically controlled to change to a first inclined attitude (disc 32 is raised in front) more than the attitude of the disc 32 before the signal is output, thereby reducing the spreading width of the scattered material.

[0048] When a signal to increase the salt concentration is output, the speed of the belt conveyor 22 is made faster than the speed of the belt conveyor 22 before the signal is output, and the opening of the gate 40 is automatically controlled to be wider than the opening of the gate 40 before the signal is output.

[0049] When a signal to decrease the salt concentration is output, the speed of the belt conveyor 22 is automatically controlled to be slower than the speed of the belt conveyor 22 before the signal was output, and the opening of the gate 40 is automatically controlled to be narrower than the opening of the gate 40 before the signal was output.

[0050] Furthermore, when a signal to increase the water concentration is output, the rotation speed of the solution pump 14 is made faster than the rotation speed of the solution pump 14 before the signal was output, and the opening of the solution valve is automatically controlled to be wider than the opening of the solution valve before the signal was output.

[0051] Furthermore, when a signal to decrease the water concentration is output, the rotation speed of the solution pump 14 is automatically controlled to be slower than the rotation speed of the solution pump 14 before the signal was output, and the opening of the solution valve is automatically controlled to be narrower than the opening of the solution valve before the signal was output.

[0052] As shown in FIG. 7, the hydraulic mechanism 4 includes a hydraulic tank 41 for storing hydraulic oil, and a hydraulic hose 42 connected to the hydraulic tank 41 for transmitting the hydraulic oil.

[0053] The hydraulic hose 42 includes a first hydraulic hose 421 for sending hydraulic oil from the hydraulic tank 41 to the hydraulic pump 15, a second hydraulic hose 422 for returning the hydraulic oil cooled in the oil cooler 6 to the hydraulic tank 41, a third hydraulic hose 423 for sending the hydraulic oil from the hydraulic tank 41 to the emergency hydraulic extraction unit 7, a fourth hydraulic hose 424 for sending the hydraulic oil discharged from the hydraulic pump 15 to the inlet of a manifold solenoid valve D configured by assembling four solenoid valves, and a fifth hydraulic hose 425 for supplying the hydraulic oil discharged from the manifold solenoid valve D to the oil cooler 6.

[0054] The connections of the first to fifth hydraulic hoses 421 to 425 will be described in detail. The first hydraulic hose 421 is moved from the hydraulic tank 41 to the left end of a right-side steel plate 91 (described later), then moved downward through a through-hole 91A formed at the left end of the steel plate 91, and then moved to below the hydraulic pump 15. The moved first hydraulic hose 421 passes through a through-hole (not shown) formed in a second checkered steel plate 26 (described later) disposed below the hydraulic pump 15, protrudes above the second checkered steel plate 26, and then connects to the hydraulic oil receiving port 15A of the hydraulic pump 15. The second hydraulic hose 422 is moved from the hydraulic tank 41 to the left end of a right-side steel plate 91 (described later), then moved downward through a through-hole 91B formed at the left end of the steel plate 91, and then moved diagonally rearward below the second checkered steel plate 26 to the left. The second hydraulic hose 422 is then moved to below the left steel plate 91, then passes through a through-hole 91D formed in the left steel plate 91, protrudes above the steel plate 91, and is connected to the outlet (discharge port) of the oil cooler 6. The third hydraulic hose 423 is moved from the hydraulic tank 41 to the left end of the right steel plate 91 (described later), then passes through a through-hole 91C formed in the left end of the steel plate 91, and is then moved downward to the emergency hydraulic take-off unit 7 to be connected to the inlet of the emergency hydraulic take-off unit 7. The portion of the third hydraulic hose 423 closer to the emergency hydraulic take-off unit 7 is not covered by the cover 9 (described later). The fourth hydraulic hose 424 is moved leftward from the discharge port of the hydraulic pump 15, bent 90 degrees, and moved rearward, then protrudes above the first checkered steel plate 25 through a through-hole 91E formed in the first checkered steel plate 25, and its protruding end is connected to the inlet of a manifold solenoid valve D arranged on the first checkered steel plate 25. The fifth hydraulic hose 425 connects the outlet of the manifold solenoid valve D and the inlet of the oil cooler 6 in a state where it is exposed above the first checkered steel plate 25 and the left steel plate 91 .

[0055] The hydraulic area 5 is formed between the rear end of the cab 16 and the front end of the hopper 2 and includes a tank arrangement area 51 for arranging the hydraulic tank 41, a hydraulic equipment arrangement area 52 for arranging the oil cooler 6 and the snow plow switching valve 8, and a hose routing area 53 for routing first to fifth hydraulic hoses 421 to 425 connecting the hydraulic tank 41 to each hydraulic equipment (emergency hydraulic take-off unit 7, hydraulic pump 15, manifold solenoid valve D, and oil cooler 6). In this embodiment, the hydraulic area 5 includes a work floor 9 provided on the chassis frames 12, 12, and the hydraulic tank 41, oil cooler 6, and snow plow switching valve 8 are placed on the work floor 9, with the empty space vacant being used as a work space. The hose routing area 53 is located near a PTO (power take-off device) (not shown) connected to the vehicle's PTO shaft (power take-off shaft) 13. By arranging the hose routing area 53 near the PTO (power take-off) of the vehicle, which gets warm in this way, the hydraulic hoses 42 routed in the hose routing area 53, i.e., the first hydraulic hose 421 to the fifth hydraulic hose 425, are warmed by the PTO. In this embodiment, the hose routing area 53 is arranged near the PTO of the vehicle, but it may also be arranged near the transmission (not shown) of the vehicle, or in a position close to both the PTO of the vehicle and the transmission of the vehicle.

[0056] The work platform 9 is provided with flat, rectangular steel plates 91, 91 that are elongated in the front-to-rear direction, and an intermediate member 92 that is connected by welding between the left and right steel plates 91, 91, and constitutes a covering portion, which will be described later. The hydraulic tank 41 is placed on the right steel plate 91, and the oil cooler 6 and the snow plow switching valve 8 are placed on the left steel plate 91.

[0057] 1 and 2, a snow removal plate (also called a snow plow) 17 is provided at the front end of the vehicle so as to be rotatable about a vertical axis Y1, and a pair of left and right hydraulic cylinders 18, 19 are provided between the vehicle body (fixed side) and the snow removal plate 17. By extending and retracting the hydraulic cylinders 18, 19, the snow removal plate 17 can be rotated about the vertical axis Y1, as shown by the two-dot chain line in FIG.

[0058] Since the snow removal board 17 is only used during the snow accumulation season, hydraulic oil is supplied to the hydraulic cylinders 18, 19 by connecting the emergency hydraulic take-off unit 7, which is mounted on the vehicle only during this season, to the hydraulic tank 41 via the third hydraulic hose 423, which serves as a hydraulic hose for the snow removal board (see Figure 7), connecting the emergency hydraulic take-off unit 7 and the snow plow switching valve 8 via a hydraulic hose 20, and connecting the snow plow switching valve 8 and the hydraulic cylinders 18, 19 via hydraulic hoses not shown, and supplying hydraulic oil from the hydraulic tank 41 to the hydraulic cylinders 18, 19 via the emergency hydraulic take-off unit 7 and the snow plow switching valve 8, thereby allowing the snow removal board 17 to rotate around the vertical axis Y1.

[0059] As shown in Figure 8, the intermediate member 92 comprises a pair of left and right frame portions 921, 921 extending in the front-to-rear direction, a rear frame portion 922 connecting the rear ends of the left and right frame portions 921, 921, a horizontal plate portion 923 extending from the front side of the right frame portion 921 toward the left frame portion 921, a front-to-rear plate portion 924 extending rearward from the left end of the horizontal plate portion 923, a plurality of connecting plate portions 925 connecting the front-to-rear plate portions 924 and the left frame portion 921 in the left-to-right direction, and a mesh portion 926 formed in the area surrounded by the right frame portion 921, the horizontal plate portion 923, the front-to-rear plate portions 924 and the rear frame portion 922.

[0060] A hose routing area 53 is formed below the intermediate member 92 configured as described above. The lower part of the right-side steel plate 91 forms part of the hose routing area for routing the ends (parts) of the first to third hydraulic hoses 421, 422, 423 connected to the hydraulic tank 41 by passing them through the through holes 91A to 91C as described above. The lower part of the left-side steel plate 91 forms part of the hose routing area for routing the end of the second hydraulic hose 422 on the oil cooler 6 side. Of the five openings K1, K2, K3, K4, and K5 (see FIG. 8) formed in the portion of the intermediate member 92 excluding the mesh portion 926, four openings K1 to K4 are covered with a first checkered steel plate 25 (see FIG. 7; the multiple connecting plate portions 925 are omitted in FIG. 7), and the remaining opening K5 is covered with a second checkered steel plate 26 (see FIG. 7), allowing the area to be used as a work platform 9. Furthermore, by providing the checkered steel plates 25, 26, the checkered steel plates 25, 26 function as a covering portion covering the upper part of the hose routing area 53. Specifically, the first to fourth hydraulic hoses 421-424 routed in the hose routing area 53 are covered by the checkered steel plates 25, 26 and the left and right steel plates 91, 91. Since the covering portion 9 covering the upper part of the hose routing area 53 is provided, even when working on the hose routing area 53, the first to fourth hydraulic hoses 421-424 are covered by the covering portion 9, making it difficult for a worker to trip over the first to fourth hydraulic hoses 421-424. Therefore, even if snow accumulates, the worker can work safely. The checkered steel plates 25, 26 are a type of steel product, and are steel plates with continuous anti-slip protrusions formed on their surfaces by rolling. The first and fourth hydraulic hoses 421, 424 constitute hydraulic spray hoses for transmitting hydraulic oil from the hydraulic tank 41 to the spraying device 3. As described above, the fifth hydraulic hose 425 is not covered by the covering portion 9. In this embodiment, the work platform 9 constitutes the covering portion.

[0061] The covering unit 9 is provided adjacent to the front side of the hopper 2 at a position below the upper surface of the hopper 2, and includes left and right steel plates 91, 91, an intermediate member 92, and checkered steel plates 25, 26. It also includes a ladder unit 27 (see FIG. 1) that rises from a rear frame portion 922 (see FIGS. 7 and 8) of a mesh portion 926 that constitutes the covering unit 9 and is hung on the upper end of the hopper 2. The ladder unit 27 is made of metal and includes a ladder body 271 that has a foothold (not shown) between a pair of left and right support portions, and a handle portion 272 that extends from the upper end of the ladder body 271 and is fixed to a bracket 2B at the upper end of the hopper 2. The handle portion 272 includes a first vertical portion 2721 extending upward from the upper end of the ladder body 271, a horizontal portion 2722 bent 90 degrees from the upper end of the first vertical portion 2721 and extending horizontally, and a second vertical portion 2723 bent 90 degrees from the extending end of the horizontal portion 2722 and extending downward. By climbing the ladder portion 272, a lid (not shown) provided at the upper end of the hopper 2 can be opened to check the salt in the hopper 2 or to replenish salt.

[0062] In addition, a mounting member 28 (see Figure 2) that can be removably placed in the space on the right-side steel plate 91 that constitutes the covering portion 9, which is on the hopper side of the ladder portion 27 in the adjacent direction (front-to-back direction in this embodiment) in which the covering portion 9 and the hopper 2 are adjacent, and on the ladder portion side of the hopper 2, is placed.

[0063] The mounting member 28 is a box-shaped case that stores a removably fire extinguisher (not shown), and is placed near the end (in this embodiment, the right end, but the left end may be used) of the width direction (left-right direction) perpendicular to the adjacent direction (front-rear direction) and the up-down direction in the space of the covering portion (work floor) 9. In this way, the mounting member 28 placed near the end of the width direction perpendicular to the adjacent direction and the up-down direction in the space of the covering portion 9 can be handled from outside the width direction of the space. The space above the covering portion 9 that is closer to the hopper than the ladder portion 27 and closer to the ladder portion than the hopper 2 in the adjacent direction (front-rear direction) where the covering portion 9 and the hopper 2 are adjacent can be effectively used as a mounting space for the mounting member 28.

[0064] 9 and 10, the covering portion 9 is disposed above the chassis frames 12, 12 so as to extend outward beyond the left and right chassis frames 12, 12 in the vehicle width direction (left-right direction). Side bumpers 29 are provided so as to bend and extend downward from portions of the covering portion 9 that extend outward beyond the chassis frames 12, 12. By providing the side bumpers 29 so as to extend downward from portions of the covering portion 9 that extend outward beyond the chassis frames 12, 12, stays that extend outward from the chassis frames 12, 12 to support the side bumpers 29 are not required, which is advantageous in terms of structure.

[0065] The side bumper 29 includes a plurality of support pipes 291 fixed at intervals in the front-to-rear direction to the back surface of the covering portion 9 on the outer side of the left and right chassis frames 12, 12 in the left-right direction, and a plurality of bumper members 292 fixed at intervals in the up-down direction to the plurality of support pipes 291. The left and right side bumpers 29, 29 and left and right skirt portions 9S, 9S hanging down from the rear end of the covering portion 9 are connected by stays 30.

[0066] The support pipe 291 includes a horizontal portion 291A fixed to the rear surface of the cover 9 and extending in the left-right direction, and a vertical portion 291B bent so as to extend downward from the outer left-right end of the horizontal portion 291A. By fixing the horizontal portion 291A of the support pipe 291 to the rear surface of the cover 9 on the outer side in the left-right direction than the left and right chassis frames 12, 12, the length of the horizontal portion 291A in the left-right direction can be made shorter than when the horizontal portion 291A is fixed to the chassis frames 12, 12.

[0067] As described above, hydraulic oil can be transmitted from one hydraulic tank 41 to the spraying device 3 and the snow removal plate 17, so the space efficiency of the hydraulic area 5 can be improved.

[0068] The present invention can be modified in various ways without departing from the spirit and scope of the invention. The specific configurations of the various parts are not limited to the above-described embodiments.

[0069] In the above embodiment, the covering portion 9 is provided so as to cover only a portion of the ends of the first to third hydraulic hoses 421 to 423 that are connected to the hydraulic tank 41, but a separate covering portion may be provided to cover all of the ends of the hydraulic hoses 421 to 423 that are connected to the hydraulic tank 41. Also, although the case is shown where the fifth hydraulic hose 425 is not covered by the covering portion 9, the fifth hydraulic hose 425 may be covered by a separate covering portion 9. In short, the covering portion may cover all of the hydraulic hoses, or may cover only a portion of the hydraulic hoses.

[0070] In the above embodiment, the mounting member is a box-shaped case that houses a fire extinguisher, but it may also be a tool box that houses tools or other members.

[0071] Furthermore, in the above embodiment, the work platform 9 covers from above substantially the entire space formed between the vehicle cabin 16 and the hopper 2, but it may also be configured to cover only a portion of it.

[0072] In the above embodiment, a part of the cover 9 is made of the mesh part 926, but the whole may be made of a mesh part (punched), or the whole may be made of a plate material without holes.

[0073] In the above embodiment, the hose routing area 53 is provided concentrated in the center in the left-right direction, but may be provided concentrated in one end or the other end in the left-right direction.

[0074] In addition, in the above embodiment, the work platform 9 is positioned above the chassis frame 12, but it may also be positioned below the chassis frame 12 or above the subframe, and the height of the work platform 9 can be freely changed.

[0075] In addition, in the above embodiment, a wet salt spreader vehicle was shown, but the vehicle may also be a spreader vehicle that spreads a thawing agent to thaw snow and ice, a sprinkler vehicle that spreads water, or any other type of spreader vehicle that spreads other materials.

[0076] In addition, in the above embodiment, the casing 37 has a top plate portion 371 and a side plate portion 372, but it may also have only a top plate portion, or may have a top plate portion, a side plate portion, and a bottom plate portion covering the underside of the disc 32.

[0077] Furthermore, in the above embodiment, the casing 37 is fixed and only the drive rotation shaft 38 is tilted, but the casing 37 may be supported on the drive rotation shaft 38 so that the casing 37 also tilts as the drive rotation shaft 38 tilts.

[0078] In addition, in the above embodiment, the drive instruction means 45 is configured to instruct both the angle change means 43 and the attitude change means 44 to drive and stop driving, but the drive instruction means 45 may be configured to instruct only one of the angle change means 43 and the attitude change means 44 to drive and stop driving.

[0079] Furthermore, in the above embodiment, the protrusion protruding downward from above toward the guide section 35 was a bolt B1, but it may also be a confirmation camera protruding downward within the casing to check the dispersion status of the dispersion material and the rotation status of the disc 32. [Explanation of symbols]

[0080] 1...Wet salt spreader, 2...Hopper, 2B...Bracket, 3...Spreader, 4...Hydraulic mechanism, 5...Hydraulic area, 6...Oil cooler, 7...Emergency hydraulic take-off unit, 8...Snow plow switching valve, 9...Work floor (covering part), 9S...Skirt part, 10...Wet salt spreader, 11...Engine, 12...Chassis frame, 13...Power take-off shaft (PTO shaft), 14...Solution (water) pump, 15...Hydraulic pump, 15A...Receiver, 16...Driver's cab (cabin), 17...Snow plow board, 18, 19...Hydraulic cylinder, 20...Hydraulic hose, 21...Storage section, 22...Belt conveyor, 23 ...Hydraulic motor for belt conveyor, 24...Receiving portion, 24A...Receiving port, 25, 26...Checkered steel plate, 27...Ladder portion, 28...Placement member, 29...Side bumper, 30...Stay, 31...Chute, 32...Disk (base portion), 32A...Placement surface, 33...Water tank (solution tank), 35...Guiding portion, 36...Pin, 37...Casing, 38...Drive rotation shaft, 39...Fixing member, 40...Gate, 41...Hydraulic tank, 42...Hydraulic hose, 43...Angle changing means, 44...Posture changing means, 45...Drive instruction means, 46...Operation unit, 47...Drive control unit, 51...Tank placement area, 52...Hydraulic Equipment arrangement area, 53...hose routing area, 91...steel plate, 91A to 91E...through holes, 92...intermediate member, 271...ladder body, 272...handle portion, 291...support pipe, 291A...horizontal portion, 291B...vertical portion, 292...bumper member, 321...inner portion, 322...outer portion, 322A...long hole, 323...plate, 351...first blade, 351A...vertical wall portion, 351B...mounting plate portion, 351K, 352K...notch, 352...second blade, 352A...vertical wall portion, 352B...mounting plate portion, 353...third blade, 353A...variable guide portion, 353a...vertical wall portion (vertical wall), 353b ...mounting plate portion, 371...top plate portion, 371A...long hole, 371B...opposing surface, 371K...opening, 372...side plate portion, 372A...front plate portion, 372B...left and right plate portions, 421...first hydraulic hose, 422...second hydraulic hose, 423...third hydraulic hose (hydraulic hose for snow removal board), 424...fourth hydraulic hose, 425...fifth hydraulic hose, 921...left and right frame portions, 922...rear frame portion, 923...horizontal plate portion, 924...front and rear plate portions, 925...connecting plate portion, 926...mesh portion, 2721...first vertical portion, 2722...horizontal portion, 2723...second vertical portion, B,B1,B2...bolt, H...hinge, N,N1,N2...nut, D...manifold solenoid valve, K1~K5...opening, M1...disk hydraulic motor, Y1...vertical axis, Y2...rotation center line

Claims

1. The spraying device comprises a hopper for storing a material to be sprayed, a spraying device for spraying the material stored in the hopper, a hydraulic mechanism for driving the hopper and the spraying device, and a hydraulic area in which the hydraulic mechanism is disposed. the hydraulic mechanism unit includes a hydraulic tank that stores hydraulic oil, and a hydraulic hose that is connected to the hydraulic tank and transmits the hydraulic oil; the hydraulic area includes a tank arrangement area in which the hydraulic tank is arranged and a hose routing area in which hydraulic hoses are routed, A spraying device having a covering portion that covers at least a portion of the hose routing area.

2. The scattering material scattering device is configured to be mounted on a vehicle equipped with a snow removal board, the hydraulic hose includes a snow plow hydraulic hose for transmitting hydraulic oil to the snow plow, The scattering material spraying device according to claim 1 , wherein the hydraulic hose for the snow removal board is routed in the hose routing area.

3. the hydraulic mechanism unit includes one hydraulic tank, The spraying device of claim 2, wherein the hydraulic hose comprises a spraying hydraulic hose that transmits hydraulic oil from the one hydraulic tank to the spraying device, and a snow plow hydraulic hose that transmits hydraulic oil from the one hydraulic tank to the snow plow.

4. The scattering material spraying device is configured to be mountable on a vehicle having at least one of a transmission and a power take-off device, 2. The scattering material spraying device according to claim 1, wherein, in a mounted state, at least the hose routing area of ​​the hydraulic area is arranged near at least one of the transmission and the power take-off device of the vehicle.

5. A scattering material spraying device as described in any one of claims 1 to 4, wherein the covering portion is positioned adjacent to the hopper at a position below the top surface of the hopper, and is provided with a ladder portion that can be raised from the covering portion and hung on the hopper, and a placing member that can be removably placed in the space above the covering portion on the hopper side of the ladder portion in the adjacent direction in which the covering portion and the hopper are adjacent, and on the ladder portion side of the hopper, is placed.

6. The scattering material spraying device according to claim 5, wherein the mounting member is placed near an end portion in a width direction perpendicular to the adjacent direction and the up-down direction in the space of the cover portion.

7. The scattering material spraying device is configured to be mountable on a vehicle having a chassis frame, the covering portion is disposed above the chassis frame so as to extend outward beyond the chassis frame in the vehicle width direction; 5. A scattering material spraying device as described in any one of claims 1 to 4, wherein a side bumper is provided so as to extend downward from a portion of the covering portion extending outward from the chassis frame.

Images