JPH0353713Y2 - - Google Patents

Description

[Detailed description of the invention] In sprayers used for pest control work on outdoor vegetables, etc., it is necessary to maintain the height of the boom member equipped with the spray nozzle at a predetermined level at all times to prevent uneven spraying. For large sprayers such as those mounted directly on a tractor, use a hydraulic hoist, etc.
This allows the boom to be held parallel to the ground. On the other hand, walk-behind sprayers, which are often used along contour lines on slopes,
In addition to keeping the nozzle ground clearance constant, it is also necessary to maintain the center line of the machine vertically so that the operator can easily hold the handle, and if auxiliary wheels are used to stabilize the machine, the crop It is also necessary to consider the planting spacing.

SUMMARY OF THE INVENTION Therefore, the present invention aims to provide an inclined spraying device for a walk-behind sprayer that uses a parallel linkage device and auxiliary wheels to perform efficient and accurate spraying work.

Next, an embodiment of the present invention will be described in detail with respect to the walk-behind single-wheel sprayer shown in the figure. In addition, illustration of a spray nozzle, a chemical solution hose, etc. is omitted in the figure.

The illustrated walk-behind single-wheel sprayer uses a pump (not shown) driven by a prime mover 4 to distribute chemicals, etc. in a tank 3 mounted on a machine body 1 having an operating handle 5 and running wheels 2 at the rear of the machine. The spray nozzles (not shown) attached along the booms 21, 22, and 23 spray the air toward the ground 27.

The machine body 1 may be moved by pushing it manually by an operator or by driving the running wheels 2 with the prime mover 4.

A parallel link device 28 is swingably disposed on the rear surface of the body 1. The parallel link device 28 includes an upper side member and a lower side member 7 of the same length, each of which has its center portion pivoted to support shafts 8 and 26 provided vertically along the center line of the rear surface of the fuselage 1 so as to be able to swing from side to side. The two end portions are rotatably connected by vertical side members 9 and 10 of the same length.

Blankets 11 and 1 are attached to these vertical side members 9 and 10.
2 is provided, and the support arms 13 and 14 protruding from the upper ends of the supports 15 and 16 of the caster type auxiliary wheels 17 and 18 toward the fuselage 1 side are inserted in a freely removable manner, and the support arms 13 are inserted with push screws or the like. , 14 are held at a predetermined value. Note that it is preferable that the auxiliary wheels 17 and 18 are fixed so as to face in the straight direction during work, since this makes it easier to maintain the straightness of the machine body 1.

A swing connecting member 1 extending in the front-rear direction of the fuselage 1 is provided near the supports 15 and 16 of the support arms 13 and 14.
The front end portions of the connecting members 19 and 20 are connected to each other so as to be swingable in the vertical direction, and the horizontal boom members 21 and 22 are connected to the rear end portions of the connecting members 19 and 20 so as to be swingable in the left and right directions.

On the other hand, a tubular central holding boom member 23, which is inserted into and held by the inner ends of the horizontal boom members 21 and 22 so as to be freely removable and fixed, is swingable from side to side via an appropriate ground height adjustment device 25 at its center portion. aircraft 1
Connect to the center of the

Blankets 24, 24, 24 for attaching spray nozzles are arranged at appropriate positions of the booms 21, 22, 23, so that the chemical liquid etc. in the tank 3 can be sprayed from the nozzles toward the ground 27 via the pump and hose. urge

Since the inclined spraying device according to the present invention is constructed as described above, as shown in FIG.
2 and 23 automatically swing from side to side while maintaining a predetermined ground height according to the slope of the ground 27.
The worker can hold the machine body 1 vertically and perform the spraying work efficiently and accurately, and can also easily adjust the spacing between the auxiliary wheels according to the planting width.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a walk-behind single-wheel sprayer equipped with an inclined spraying device according to an embodiment of the present invention, and FIG. 2 is a rear view thereof. 1... Airframe, 2... Running wheels, 9, 10...
Vertical side member, 17, 18... Auxiliary wheel, 19, 20
... Swinging connection member, 21, 22 ... Horizontal boom member, 23 ... Central holding boom member, 25 ... Ground height adjustment device, 28 ... Parallel link device.

Claims (1)

[Scope of utility model registration request] A parallel link device 28 is swingably disposed along the left and right direction of the body 1 having running wheels 2, and the distance between the auxiliary wheels 17 and 18 is variable with respect to the longitudinal side members 9 and 10 of the parallel link device 28. The horizontal boom members 21 and 22 are connected to the auxiliary wheels 17 and 18 via swinging connection members 19 and 20, and the center boom members 21 and 22 are swingably connected to the fuselage 1 via a ground height adjustment device 25. A slanted spraying device for a walk-behind sprayer, characterized in that it is provided so as to be able to move in and out of a holding boom member 23.