JPS5827818Y2 - Chemical sprayer - Google Patents

Description

[Detailed Description of the Invention] The present invention is configured such that a ground idler wheel that rotates while being towed by a traveling machine body and a chemical spraying device are interlocked, and the spraying device is driven by the rotation of the idler wheel. The present invention relates to a chemical sprayer in which the ground-contact idler wheel can be freely switched to a state where it is lifted above the ground.

In the above-mentioned chemical spraying machine, when moving to the next stroke after completing the -stroke, the ground idler is switched to the state where it is raised to the platform, the spraying operation is stopped, and the machine turns. Because the idler wheels tend to continue rotating due to inertia and the weight of attached mud, it may be difficult to stop the spraying operation properly, resulting in the problem of wasted chemical consumption. In addition, since the spraying device is also lifted in conjunction with the lifting of the free wheel, there is a risk that the sprayed chemical may fall on the worker.

The present invention was made keeping in mind the above actual situation,
The above-mentioned chemical spraying machine is characterized in that it is provided with a mechanism for releasing the interlock between the idler wheel and the spraying device.

In other words, since the interlock release mechanism is provided, when it is necessary to stop the spraying operation and turn around, by switching to the interlock release state, it is now possible to stop the spraying operation appropriately. , it has become possible to solve the above-mentioned problems and perform good chemical spraying.

Embodiments of the present invention will be described below based on illustrative drawings.

FIG. 1 shows a drug dispersion device 6 connected to the rear of a walking-type traveling aircraft 4 consisting of an engine 1, a pair of left and right traveling wheels 2, 2, a control handle 3 extending rearward and upward, etc. via a frame 5. This shows a chemical sprayer.

The spraying device 6 is fixed to a tank 7 for storing liquid chemicals, a pair of left and right pumps 8, 8 for pumping the chemicals, and a lower back side of a pair of left and right earth cutting tools 9, 9 that advance into the mud. The nozzles 10 and 10 are configured to spray the chemicals into the mud as the pumps 8, 8 are driven as described later.

Next, the drive structure of the pumps 8, 8 will be explained.

The left and right pumps 8, 8 are driven by a similar structure, and only the left side will be described below.

That is, the support frame 1 connected to the rear part of the frame 5
1, a pair of left and right drum-shaped ground idlers 12 degrees 12 are rotatably supported around a horizontal axis.

A swing arm 13 is pivotally supported on the support frame 11, and a push/pull rod 14 for operating the pump 8 is pivotally connected to the intermediate portion of the arm 13.

The swinging arm 13 is urged downward by a spring 15, and comes into contact with the tip of the arm 13 at appropriate intervals in the circumferential direction of the side wall of the left idler wheel 12. A plurality of cams 16 are pressed upward and swung.
... is fixed.

Then, when the ground idler wheel 12 rotates while being towed by the traveling body 4, the cam 16 intermittently presses and swings the arm 13 along with this rotation, thereby causing the rod 14 to rotate. The pump 8 is configured to be driven by push/pull operations.

Next, a mechanism for releasing the interlock between the idler wheel 12.12 and the spraying device 6, that is, the pump 8.8 will be explained.

That is, an operating lever 17 is pivotally supported on the operating handle 3 so as to be swingable back and forth, and this lever 17 and
The swing arm 13 and a swing arm 18 provided for driving the left pump 8 are interlocked and connected via a wire 19.

Then, by swinging the lever 17 backward, the swing arm 13.18 is swinged upward to a position where it does not come into contact with the cam 16, and the interlocking is released. There is.

The ground-contact idle wheels 12, 12 are configured to run along the path of the earth-cutting tools 9, 90, and have the function of filling the grooves formed by the earth-cutting tools 9, 9.

Incidentally, in order to achieve the same purpose as the present proposal, the ground idler wheel 12.
Although it is conceivable to provide a mechanism that applies a brake to the rotation of 12, in this case, the structure is likely to be more complicated than the present proposal.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the chemical sprayer according to the present invention,
FIG. 1 is an overall side view, and FIG. 2 is a schematic plan view. 4... Traveling machine body, 6... Chemical spraying device, 12... Ground free wheel.

Claims (1)

[Scope of utility model registration request] The ground idler wheel 12 which is towed by the traveling machine body 4 and rotates is linked with the chemical spraying device 6, and the sprayer device 6 is driven by the rotation of the idler wheel 12. 12, which can be freely switched in a state where it is lifted above the ground, and is characterized by being provided with a mechanism for releasing the interlock between the idler wheel 12 and the spraying device 6. Machine.