JP2000041448A - Dusting boom of dusting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject dusting powder-sprinkling boom that can increase dust-sprinkling workability as it is readily adaptive to the sprinkling width with reduced damage even in narrow and troublesome places by linking a specific auxiliary boom to the top end of the pipe boom. SOLUTION: A flexible and stretchable auxiliary boom 3 is linked to the top edge of the pipe boom 2 that stretches out in the transverse direction to the machine body. When dusting powder-sprinkling operation is done as the pipe boom 2 is stretched in the transverse direction to the machine body, the pipe boom can sprinkle in the width of the pipe boom in the state that the auxiliary boom at the top of the pipe boom is in the rest. Further in the case that the auxiliary boom 3 is stretched or is kept stretchable, the dusting powder can be sprinkled over a wide range of the pipe boom and the auxiliary boom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dusting boom (boom sprayer) of a dusting machine, and is used for a dusting machine mounted on a tractor body.

[0002]

In a configuration in which a dusting boom of a dusting machine is extended laterally from a tractor body and dusting is performed over a wide area, some dusting booms may be attached or detached in places where the dusting width is limited. In addition, a complicated configuration and operation such as switching overhanging booms on both the right and left sides to an overhanging form of only one side are required.

[0003]

SUMMARY OF THE INVENTION The present invention relates to a dusting device for a dusting machine in which a flexible, overhanging and storable auxiliary boom 3 is connected to the tip of a pipe boom 2 which projects in the lateral direction of a vehicle body 1 for dusting. Boom configuration.

[0004]

When the dusting operation is performed with the pipe boom 2 extended on the side of the vehicle body 1, when the auxiliary boom 3 at the tip of the pipe boom 2 is stored, the pipe boom 2 A dusting action of the width takes place. When the auxiliary boom 3 is overhanged or in a state where it can be overhanged, dusting is performed over a wide area between the pipe boom 2 and the auxiliary boom 3.

[0005] Such an auxiliary boom 3 is soft and overhangs,
Because it can be stored, it is easy to adapt to the dusting width area, and even in a place where it is narrow and easily obstructed like a high ridge, the auxiliary boom 3 at the tip contacts the ridge etc., but this causes direct damage etc. Receiving less, dusting workability can be improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tractor body 1 has an engine provided under a front hood 4 and has front wheels 6 and rear wheels 7 which can be steered by a steering handle 5, and is transmitted by the driving of the engine. It can rotate and run. A hopper 9 for accommodating the powder material at the rear of the cockpit 8, a feeding device 10 for feeding the powder material from the hopper 9, a blower 11 for jetting the fed powder material, and the like are interlocked. An injection pipe 12 and the like are provided for guiding the powder and branching and jetting the powder to the left and right sides.

The pipe boom 2 is connected to both left and right sides of the jet pipe 12 by bellows hoses 13. The pipe boom 2 has a cylinder 15 which is extended and contracted by a geared motor between the body 1 and a lower part of a support frame 14 which is integrally formed.
The pipe boom 2 can be switched between a folded state along the left and right sides of the vehicle body 1 and a laterally extended state by expansion and contraction of the cylinder 15.

The base end of the pipe boom 2 is connected to a support arm 16 projecting from a lower portion of the support frame 14 to an intermediate portion of the bellows hose 13 by a vertical pivot pin 18.
, And is attached to and supported by the connected turning arm 17, and is turned around the turning pin 18 by the cylinder 15. The pipe boom 2 is provided with an injection hole 19 for ejecting the powder material downward, so that the powder material injected from the injection pipe 12 can be dusted downward.

The end face of the pipe boom 2 is opened,
An auxiliary boom 3 made of a vinyl hose or the like is connected. The auxiliary boom 3 has an injection hole 20 along which the dust can be ejected along the lower side, and the tip end surface is closed. The boom 3 is soft and lightweight and can be folded like a vinyl hose, and expands and extends in a cylindrical shape by the blast pressure from the pipe boom 2 side to be in a linear state.

In order to support the auxiliary boom 3 connected to the tip of the pipe boom 2 as described above, an L-shaped support rod 21 which can be raised and lowered outward is pivotally mounted 22 on the pipe boom 2 and the support rod 21 is The middle and the tip of the auxiliary boom 3 are connected to the upper end by a rope 23 and suspended. In a state where the support rod 21 is upright, the auxiliary boom 3 suspended by the rope 23 is moved to the pipe boom 2 side to be in a folded state A. In a state where the support rod 21 is fallen outward, the rope 23 is Can be positioned outward, and the auxiliary boom 3 can be extended to the linearly extended state B by the blast from the pipe boom 2.

The switching between the storage state A and the extended state B of the auxiliary boom 3 is performed by driving the motor M provided on the support frame 14 side to rotate the support rod 21 up and down via the wire 24. The upright rotation of the support rod 21 to the stored state A may be performed by winding the wire 24 by driving the motor M. In the overhanging state B, the motor M is kept in a free rotation state, and the auxiliary boom 3 is extended by the blast from the blower 11, the rope 23 is extended, and the support rod 21 is also rotated outward. . 25 and 26 are stoppers of the support rod 21.

In order to move up and down integrally with the auxiliary boom 3 of the pipe boom 2, the pipe 27 is wound by a motor reel around a wire 27 wound around the support frame 14. 2
Reference numeral 8 denotes an elevating shaft supporting the pipe boom 2 so as to be vertically rotatable with respect to the rotating arm 17. The auxiliary boom 3
When the dusting from the auxiliary boom 3 is not performed in a state where the auxiliary boom 3 is connected, the storage rod A is set to the storage state A by standing the support rod 21. Is done.

Further, an opening / closing valve which is closed by the erecting of the support rod 21 may be provided at the tip of the pipe boom 3. In FIG. 4, the point different from the above example relates to the configuration of an operation switch for controlling opening and closing of the left and right pipe booms 2 and raising and lowering. Lift switch SW for each boom 2
1 is a two-stage operation mode, in which the push operation of the first stage moves up or down only during the pushing operation, and the push operation of the second stage continuously operates up to the ascending or descending limit.

In such a switch operation, the amount of depression of the switch SW1 is changed according to the amount of elevation of the boom 2, and when the elevation time is required, if the switch is pressed deeply in the second step and released from the switch, The operation can be simplified by raising and lowering to the lower limit position. In a controller 29 such as a lift switch SW1 for raising and lowering the pair of left and right pipe booms 2 at the same time and a geared motor M3 of the lifting cylinder 15 for raising and lowering the pipe boom 2, the lift switch SW1 is connected to the operation box 30 near the cockpit 8.
And an external operation box 31 that can be operated in a place other than the cockpit 8.

Boom opening / closing switches SW2, SW3 for opening and closing the booms for opening and closing the left and right pipe booms 2 in a protruding state and closing them in a stowed state are respectively provided in the operation box 30 as lever switches. By operating the open / close switch SW2 for the left boom 2, the left boom open / close motor M1 is rotated forward or backward to extend and contract the left cylinder 15. Open / close switch SW for right boom 2
3, the right boom opening / closing motor M
2 is rotated forward or backward to extend and contract the right cylinder 15.

R1 is a relay which is activated when the main switch is turned on. When operated with the operation box 30, operation with the external operation box 31 is disabled. SW4 is an upper limit switch for detecting the upper limit position of the pipe boom 2 and stopping the connection rise, and W5 is a lower limit switch. The controller 29 is provided with a priority circuit 32, and when the elevation switch SW1 of one of the operation boxes 30, 31 is operated, this is given priority. At this time, even if the other up / down switch SW1 that is not operated is operated with a delay, the switch circuit is electrically interlocked and no output is made.

In FIG. 5, the difference from the above example is that the boom opening / closing switches SW2 and SW3 for opening and closing the left and right pipe booms 2 also have the same two-stage operation configuration as the lifting switch SW1. Things. The boom opening / closing switches SW2 and SW3 are opened and closed only during the first-stage pressing operation, and when the second-stage pressing operation is performed, the operation limit is limited even if the switch is released from the switch. Operate continuously open and close until detecting.

In FIG. 6, a different point from the above example is that an ascending position setting dial VR1 and an ascending position setting dial VR2 for previously adjusting and setting the upper limit position when raising and the lower limit position when lowering by the raising / lowering switch SW1. Is provided.
The adjustment by the setting dials VR1 and VR2 is performed by the elevation switch SW in the operation box 30 of the cockpit 8 part.
1, the upper limit position and the lower limit position of the external operation box 31 by the elevation switch SW1 are the maximum upper limit and lower limit positions irrespective of the setting values by the setting dials VR1 and VR2.

Any of the operation boxes 30 and 3
1, the height of the pipe boom 2 can be detected by the lifting position detection potentiometer S1 mounted on the boom 2 or the lifting cylinder 15.

[Brief description of the drawings]

FIG. 1 is a front view showing the operation of a dusting boom 2;

FIG. 2 is a side view of the tractor dusting machine.

FIG. 3 is a rear view thereof.

FIG. 4 is a perspective view of an operation box portion showing a partially different embodiment, and a block circuit diagram thereof.

FIG. 5 is a perspective view of an operation box section showing a partially different embodiment, and a block circuit diagram thereof.

FIG. 6 is a perspective view of an operation box portion showing a partially different embodiment, and a block circuit diagram thereof.

[Explanation of symbols]

 1 body 2 pipe boom 3 auxiliary boom

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Gen Odagiri, Inventor Ichi-gun, Iyo-gun, Ehime Prefecture, Ichino Agricultural Machinery Co., Ltd. Within the department (72) Inventor Norihiro Uejima 1 Toya-cho Hachikura, Toyo-cho, Iyo-gun, Ehime Pref. Iseki Agricultural Machinery Co., Ltd. 2B052 BC05 BC08 DD04 EA02 EB02 EC03 EC04 EC10 2B121 CB03 CB24 CB33 CB45 CB46 CB47 CB51 CB56 EA25 FA02

Claims (1)

[Claims] 1. A dusting boom of a dusting machine in which an auxiliary boom 3 which is soft and can be extended and housed is connected to the tip of a pipe boom 2 which projects in the lateral direction of a vehicle body 1 and dusts.