JPS6125893Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is intended to provide a traveling power sprayer having a novel configuration.

In the case of the conventionally provided tractor-mounted sprayer 12, as shown in FIG. 1
It becomes dangerous and impossible to work until 2A is raised and the tail wheel reaches flat ground. This is because the lower link of the tractor does not transfer the weight of the aircraft to the entire tail wheel, and if the entire weight is supported by the tail wheel, the tail wheel may get stuck on the ground, and if the load is not applied to the rear wheels of the tractor, it will not be possible to drive. On the other hand, the tires are easier to spin, so the lower link supports about half the weight. Normally, the lower link of a tractor would be able to freely rise upwards and freely fall downwards, but because it is supported by the lower link using hydraulic pressure, it cannot be lowered downwards.

The present invention is intended to fully solve this problem, and one embodiment thereof will be described in detail below with reference to the drawings.

1 is a traveling power sprayer of the present invention. and,
Its structure is such that upper and lower guide cases 5 and 6, which extend and contract in the vertical direction by a hydraulic cylinder 4, are provided at the tail wheel attachment point of a frame 3 for a traveling power sprayer that can be towed by a tractor 2. A foot portion 8 is connected to the lower end of the case via a fulcrum 7 in a direction perpendicular to the direction of movement of the frame, and a tail wheel 10 is rotatably mounted below both ends of the foot portion via a bearing case 9. installed. Further, a mid-foot portion 11 is connected to the foot portion 8 in a manner that allows expansion and contraction adjustment in the longitudinal direction of the foot portion, and a tail wheel 10 is provided on the lower surface of both ends of the mid-foot portion via a bearing case 9. installed. In the figure, 17 is a main rod, 13 is a boom intermediate rod, 14 is a boom tip rod, 15 is a square tank, and 16 is a supporting leg. Note that the case 5 is fixed to a frame.

Next, the function of the present invention will be explained along with its effects.

By expanding and contracting the upper and lower guide cases using hydraulic cylinders, the frame 3 can be moved up and down, and the foot can be rolled around the fulcrum. Since the foot and mid-foot parts can be slid, it is possible to accommodate differences in ridge width depending on the crop. The tail wheel mentioned above is of a free wheel type. As described above, the rolling action around the fulcrum prevents the frame from twisting, distorting, and other harmful effects even if the ground is uneven, and prevents sideways wobbling during running. In particular, in the case of the present application, since a hydraulic cylinder is provided in the tail wheel, when climbing a steep uphill slope, by extending the hydraulic cylinder in the tail wheel, the front of the tractor does not rise, allowing safe work. As it approaches flat ground, the hydraulic cylinder is contracted to lower the aircraft as it travels. Nowadays, agricultural roads are very well-developed and are much higher than the fields, so the access roads to the fields are at steep angles. Therefore, when entering a field from a road, or when exiting from a field to a road, the road is generally poor and has particularly steep angles, or has extreme convexities, and in such cases, this up-and-down device is essential. In this case, the work is difficult, but even in this case, the work can be done smoothly as described above.

In addition, since two rear tail wheels are provided, it can reliably follow the rear of the tractor and can be used regardless of the type of crop.

In addition, the tail wheel can be raised and lowered using a hydraulic cylinder, and a rolling mechanism has been adopted, making it safer than conventional machines.As a result, it has become possible to use a large sprayer, for example around 1500, as a mounted type. . Moreover, in this case, by configuring the tank in a rectangular shape, it is possible to limit the length, height, etc. of the aircraft body.

This is a useful device with many advantages.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a left side view, Fig. 2 is a rear view, Fig. 3 is a perspective view, Fig. 4 is an enlarged rear view of main parts, and Fig. 5 shows the operation. 6 is a rear view showing the operation, FIG. 7 is a side view showing the operation, and FIG. 8 is a side view explaining the state of the conventional one. 1... Traveling power sprayer, 2... Tractor, 3
... Frame for traveling power sprayer, 4 ... Hydraulic cylinder, 5, 6 ... Guide case, 7 ... Fulcrum, 8 ... Foot section, 9 ... Bearing case, 10
...Tail wheel.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) At the tail wheel attachment point of a frame for a traveling power sprayer configured to be towed by a tractor,
Upper and lower guide cases are provided that extend and contract in the vertical direction by hydraulic cylinders, and a foot section is connected to the lower end of the lower guide case in a direction perpendicular to the direction of movement of the frame via a fulcrum. A traveling power sprayer characterized by a tail wheel rotatably attached to the lower surface of both ends via a bearing case. (2) The foot of the traveling power sprayer described in claim (1) of the utility model registration has a mid-foot part connected to the mid-foot part that can be expanded and contracted in the longitudinal direction of the foot part, and the mid-foot part A tail wheel is attached to the lower surface of both ends via a bearing case.