JP2007007552A - Nozzle supporting apparatus of spray working car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle supporting apparatus of a spray working car, specially the nozzle supporting apparatus which can carry out power saving of a work concerning to the structure of the nozzle supporting apparatus arranged for an arm member of the upper and lower direction. <P>SOLUTION: A suspending arm 5 of the upper and lower direction is rotatably installed at a spray boom 2 arranged for the spray working car. A side-direction spray nozzle 3, 3 is arranged at the lower end part of the suspending arm 5, and also a rotational base part of the arm is equipped with an opening and closing cock 4, an operational piece 7 of the shape similar to the character "L" for opening and closing a pathway in the cock, and a stopper 6 which opens and closes the pathway in the opening and closing cock 4 by connecting with rotational operation of the arm member 5 to make the stopper abut on the operational piece 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a nozzle support device for a scattering work vehicle, and more particularly to a configuration of a nozzle support device provided in an arm member in the vertical direction.

  Conventionally, as shown in Japanese Patent Application Laid-Open No. 2003-284980, a vertical arm member (suspension arm) is provided at predetermined intervals with respect to a center boom and a side boom of a scattering work vehicle, and a lower end portion of the arm is provided. A configuration including a side spray nozzle is known. And the said side spray nozzle can comprise the said suspension arm so that rotation up and down is possible around a horizontal axis, and it can change and hold | maintain between the working state drooping downward and the accommodation state rotated upwards. ing.

And the said center boom and the side boom are each provided with piping hose, and it is the structure which starts and stops spraying in a boom unit with the cock of the cockpit side.
JP2003-284980

  In the conventional spraying device, in addition to the cock at the side of the cockpit, an opening / closing cock is provided at the base of each nozzle. For example, the number of planted crops is reduced relative to the spreading width at the field end. In such a case, it is necessary to raise a part of the suspension arms that do not need to be sprinkled upward to be in the stowed state, and to close each of the cocks.

In order to solve the above problems, the present invention is configured as follows for a nozzle support device of a scattering work vehicle.
That is, the spray nozzle (3) is provided at the lower end of the rotatable arm member (5) equipped on the vehicle body (1), and the opening / closing cock (4) is provided at the rotation base of the arm member (5). An operation piece (7) for opening and closing the flow path in the cock (4) and an operation piece (7) in contact with the turning operation of the arm member (5) to contact the operation piece (7). A nozzle support device for a spraying work vehicle comprising a stopper member (6) for opening and closing the flow path of the spraying work vehicle.
(Operation of the invention)
In the spreading work vehicle configured as described above, when the arm member (5) is rotated to the use state in accordance with the working state, for example, the planting row of crops, the operation piece (7) of the open / close cock (4) is a stopper. Abutting on the member (6), the flow path in the open / close cock (4) is opened.

  Moreover, if it rotates to a non-use state, an operation piece (7) will contact | abut to a stopper member (6), and the flow path in an opening-and-closing cock (4) will be closed by the reverse operation of said.

  Accordingly, since the flow path in the opening / closing cock (4) is opened / closed in association with the rotation of the arm member (5), the opening / closing operation of the opening / closing cock (4) is separately performed. This eliminates the need for labor saving.

The present invention will be described below with reference to the drawings.
As shown in FIGS. 5 and 6, the spreading work vehicle (passenger management machine) is provided with a cockpit 8 on the vehicle body 1, and the left and right sides and the rear side of the cockpit 8 have a “U” shape in plan view. The operation panel 10 is disposed on the tank 9 on the right side of the cockpit 8 while being surrounded by the control tank 9, and the various liquid levers 29, 29, 29 on the operation panel 10 are placed on the operation panel 10. It is configured to be operated and sent to the center boom 2C and the left and right side booms 2L, 2R. In addition, a carrier base is detachably provided in the rear short part of the vehicle body 1, and a tire mark spraying device 25 is provided on both the left and right sides of the carrier base.

  Further, as shown in FIG. 7, the spraying device for the spraying work vehicle includes spraying booms 2C, 2L, and 2R including the control tank 9, the control pump 12, the pressure adjusting device 18, and various spraying nozzles 3, 3,. It has the composition to have.

  Specifically, the control tank 9 and the control pump 12 are communicated with each other through a water supply hose 15 having a suction filter 13 and a water supply cock 14, and the chemical liquid sucked out from the control tank 9 by the pump 12 is used. It is set as the structure sent out to the pressure regulation apparatus 18 of the channel lower side through the water discharge hose 16. Further, the water discharge hose 16 has a structure in which a stirring hose 17 for returning a part of the chemical solution into the tank 9 and agitating the chemical solution in the tank 9 is branched.

  The pressure adjusting device 18 is connected to the terminal end of the water discharge hose 16 and includes a relief valve 19, an air chamber 20, a flow rate control valve 21, a flow rate sensor 22, a spillage hose 24, and the like. Further, the pressure of the chemical solution sent out from the pressure adjusting device 18 is detected by the pressure sensor 23 on the lower side of the circuit.

  Further, the chemical solution sent from the pressure adjusting device 18 is branched into three piping hoses 11C, 11L, and 11R, and the feeding of the chemical solution is started and stopped by each cock lever 29 of the operation panel 10 part. Yes. In addition, each hose is configured to be connected to a piping path of a center boom 2C disposed in the left-right direction in front of the vehicle body 1 and side booms 2L, 2R that are rotatably connected to both left and right ends of the boom 2C.

Moreover, in the said dispersion | distribution work vehicle, it has the structure provided with the tire mark dispersion | spreading apparatus 25 using the piping path 11C connected to the center boom 2C.
Specifically, the hose 26 is branched from the middle of the pipe line 11C, and the chemical solution is sprayed from the spray nozzles 27, 27 provided on the left and right sides of the carrier base. A cock lever 28 for starting and stopping spraying of the tire mark spraying device 25 is also provided on the operation panel 10.

  Further, as shown in FIGS. 10 and 11, the spray nozzles 27, 27 of the tire mark spraying device 25 are configured to be retractable and swung upwards around the pivot fulcrum P of the base portion. The flow path to the nozzle 27 can be opened and closed independently by the left and right knob bolts 30.

  12 and 13 show another embodiment of the tire mark spraying device 25, in which an electric cylinder 31 is provided at the rotation base of the spray nozzles 27, 27, and the lower end spraying portion has a rotation fulcrum P as a fulcrum. It can be swung back and forth. The electric cylinder 31 is extended based on a control signal from a separately provided controller, and as shown in FIG. 12, the spray nozzles 27 and 27 are connected to the reverse operation of the spray work vehicle 7 by a solid line. It is set as the structure which retracts and retreats from the position of this to the position of the back virtual line. Reference numeral 35 denotes a cover that surrounds the periphery of the nozzle so that mud does not directly adhere as the rear wheel 33 rotates.

Next, the side spray nozzle 3 attached to the center boom 2C and the left and right side booms 2L and 2R, which are the main parts of the present invention, will be described.
As shown in FIG. 6, the spreading work vehicle 7 has left side booms 2L and right side booms 2R attached to the left and right ends of the center boom 2C so that the left side booms 2R can be expanded laterally. It spreads and spreads.

  In the present invention, as shown in FIG. 1 and FIG. 2, a “U” -shaped suspension arm mounting bracket 40 that is open downward is attached to each boom 2C, 2L, 2R with bolts 41 at predetermined intervals. It is attached. Further, the bracket 40 is configured to be movable and adjustable by sliding in the longitudinal direction of the boom 2 so as to correspond to the planting interval of the crop.

  The suspension arm 5 serving as an arm member of the present invention is rotatably supported at its upper end portion by a mounting plate 43 integral with the bracket 40, specifically, a left-right rotation shaft 44 formed on the same plate 43. The working position in FIG. 1 (A) and the storage position in FIG. 1 (B) can be switched. The suspension arm 5 has a spring S interposed between the suspension plate 5 and the mounting plate 43 so as to be urged forward of the vehicle body.

  In addition, a pin-like stopper 6 is provided on the upper part of the suspension arm 5 to fix the intermediate part to the mounting plate 43 and to bend the upper and lower ends to form the locking parts 6a and 6b. The suspension arm 5 is pressed and held in a standing posture.

  A hose attached along the suspension arm 5 (hereinafter referred to as a suspension hose 47) has a base end connected to the piping hose 11 (11C, 11L, 11R) and two nozzles (hereinafter referred to as sides) at the distal end. A side spray nozzle 3) is attached. The suspension hose 47 is provided with a cylindrical opening / closing cock 4 at a position close to the base mounting plate 43, and an internal flow is operated by rotating an operation piece 7 having a substantially “h” shape provided outside the cock. The road is opened and closed.

  The operation piece 7 of the cock 4 is disposed at a position where it abuts on the lower end portion 6a of the stopper 6, and the stopper 6 comes into contact with the operation piece 7 and moves at an angle as the suspension arm 5 is turned up and down. By changing, as described above, the opening α of the internal flow path is changed. Specifically, as shown in FIG. 3, when the suspension arm 5 is rotated upward, that is, when the suspension arm 5 is rotated to the storage position, the operation piece 7 is engaged with the lower locking portion 6a of the stopper 6 at a fixed position. The cock 4 is closed and operated in the order of (A), (B), (C), and (D). On the other hand, when the arm 5 is rotated downward, that is, returned to the working position, the internal flow path of the cock 4 spreads and spreads in the order of (D), (C), (B), and (A) in FIG. Is possible.

  In the position shown in FIG. 3A, the side spray nozzle 3 has a large angle between the operating piece 7 and the suspension arm 5, and spraying is performed with the opening degree α of the cock 4 being maximized. Further, at the position shown in FIG. 3D, the opening degree of the internal flow path becomes 0 and the liquid feeding is shut off.

  As shown in FIG. 2, the suspension arm 5 is separated from the lower locking portion 6a of the stopper 6 when the rotating shaft 44 is pulled out against the tension of the spring and moved to the position of the imaginary line. Only 7 becomes the contact position of the stopper 6 and can be rotated upward.

  As described above, simply by rotating the suspension arm 5 upward, the flow path in the open / close cock 4 is closed in conjunction with this, and by simply rotating downward, the open / close cock is interlocked. Since the flow path in 4 is open, when the suspension arm 5 is set to the storage position according to the number of planted crops, it is not necessary to open and close the open / close cock 4 separately, thereby saving labor. Can do. Here, since the stopper 6 that contacts the operation piece 7 and the stopper that holds the suspension arm 5 against the spring S are combined, the component is compared with a component that is configured separately. The score can reduce the cost.

Further, as another form of the invention, it may be configured to be provided at the rotation base of the tire mark spray nozzle 27 provided at the rear of the vehicle body.
The side spray nozzle 3 shown in FIG. 4 shows a conventional configuration as a comparative example, and reference numeral 50 is twisted or bent even if the pipe hose 11 is rotated up and down and left and right. In order not to occur, the structure is connected via a swivel joint 50.

(A) Side view of the lateral spray nozzle at the working position. (B) Side view of the lateral spray nozzle in the storage position. The enlarged front view around a cock. The figure which shows the opening degree of a cock, the operation piece, and the relationship of a stopper. The front view which shows the structure of the conventional side spray nozzle. The partial front view of the boom which adjusted the spreading width. The top view of a spreading work vehicle. Fig. 3 is a piping system diagram of a spraying device. The side view of the spreading work vehicle equipped with the tire mark spraying nozzle. FIG. 9 is a partially enlarged view of the scattering work vehicle of FIG. 8. The operation side view of a tire mark spray nozzle. The side view of a tire mark spray nozzle. The operation side view of a tire mark spray nozzle. The side view which attached the mudguard cover to the tire mark spray nozzle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Spreading boom 2C Center boom 2L Left side boom 2R Right side boom 3 Spray nozzle (side spray nozzle)
4 Opening and closing cock 5 Suspended arm (arm member)
6 Stopper 7 Operation piece

Claims (1)

A spray nozzle (3) is provided at the lower end of a rotatable arm member (5) equipped on the vehicle body (1), and an opening / closing cock (4) and a cock ( 4) An operation piece (7) that opens and closes the flow path in the inside, and an operation piece (7) that is brought into contact with the operation piece (7) in conjunction with the turning operation of the arm member (5) to flow the opening and closing cock (4). A nozzle support device for a scattering work vehicle, comprising a stopper member (6) for opening and closing the road.

Images