JP2555169Y2 - Nozzle holding mechanism of self-propelled sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to a nozzle holding mechanism of a self-propelled sprayer that sprays a chemical solution while steering a furrow unmanned in an orchard or a horticultural house.

(B) Conventional technology Conventionally, a technology relating to a riding type sprayer has been known. For example, as disclosed in Japanese Utility Model Laid-Open No. 62-27770.

In addition, the technology related to the unmanned self-propelled sprayer is known. For example, Japanese Utility Model Laid-Open No. 1-73032 and Japanese Utility Model Publication No. 1-13333.

(C) Problems to be solved by the invention However, in the nozzle holding mechanism of the conventional unmanned self-propelled sprayer described above, the spray pipe supporting the spray nozzle is fixed firmly to the body frame. When the tip of the pipe just contacts the branches and leaves of the crop, a large bending torque is generated at the base end of the spray pipe, and the unmanned self-propelled sprayer continues running regardless of it, so the base of the spray pipe may bend. There was a problem that it broke.

Further, electronic components such as a front contact sensor are arranged at the base of the spray pipe, and there is a problem that these components are damaged.

The present invention solves such disadvantages of the prior art by interposing a cushioning elastic body between the spray pipe and the spray pipe support.

(D) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

The spray pipe support 5 projects upward from the front of the body frame F of the self-propelled sprayer A traveling in the furrow in an orchard or a horticultural house by the four wheels of the front wheels 13, 13 and the rear wheels 12, 12. Then, a height adjuster 6 whose position can be adjusted vertically is attached to the spray pipe support 5, the spray pipe support tube 2 is attached to the height adjuster 6, and the spray pipe 3 is attached to the spray pipe support tube 2.
In a nozzle holding mechanism of a self-propelled sprayer having a spray port nozzle 4 attached to the spray pipe 3, a buffer elastic body constituted by a spring or the like is provided between the height adjuster 6 and the spray pipe support cylinder 2. 11 is interposed.

(E) Embodiment The problems to be solved and means to be solved by the present invention are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described.

1 is an overall side view of the self-propelled sprayer A, and FIG. 2 is a cushioning elastic body 11 between the spray pipe support 5 and the spray pipe support cylinder 2.
FIG. 3 is a side view of the embodiment in which the components are interposed.

In FIG. 1, a drive motor 8 is mounted on a front portion of the body frame F, and the drive motor 8
The front wheels 13, 13 and the rear wheels 12, 12, which are supported by the vehicle, are driven.

A battery 9 for driving a drive motor 8 and a hose take-up reel 7 for winding a hose 14 are mounted on the upper part of the machine frame F. The hose take-up reel 7 may be mounted on the self-propelled sprayer A and run by itself, or the hose take-up reel may be arranged at the end of the ridge, and the hose take-up reel may be used together with the travel of the self-propelled sprayer A. It can be withdrawn and wound up.

The battery 9 and the upper part of the hose take-up reel 7 are covered with a hood cover 10, a steering handle 15 is provided at the rear, and a spray pipe support 5 is provided upright at the front.

In addition, a front contact sensor 17 is provided at the front of the body frame F, a rear contact sensor 16 is provided at the rear, and the front contact sensor 17 and the rear contact sensor 16 come into contact with an end collision body projecting at the ridge end. In this way, the direction is automatically changed.

The spray pipe support 5 is provided with the spray pipe support tube 2, the spray pipe support tube 2 supports the spray pipe 3, and the spray pipe 3 is provided with a plurality of spray port nozzles 4.

The chemical solution from the hose 14 is guided inside the spray pipe 3 and sprayed from the spray nozzle 4.

In the self-propelled sprayer A shown in FIG. 1, an expansion and contraction mechanism of the spray pipe 3 is configured between the spray pipe support tube 2 and the spray pipe 3.

That is, the spray pipe support cylinder 2 is formed in a cylindrical shape, the spray pipe 3 is formed in a piston shape, and a seal mechanism is interposed between the two. It can be expanded and contracted accordingly.

By configuring the expansion and contraction mechanism between the spray pipe support cylinder 2 and the spray pipe 3 in this manner, depending on the height of the crop,
The position of the spray nozzle 4 can be adjusted to an optimum height, and the tip of the spray pipe 3 can be adjusted so as not to contact the branches and leaves of the crop.

 Next, the main part of the present invention will be described with reference to FIG.

The insertion adjuster 6 is inserted into the spray pipe support 5, and the spray pipe support cylinder 2 protrudes forward from the insert adjuster 6. The spray pipe 3 is inserted or held in the spray pipe support tube 2, and a chemical solution passes through the inside of the spray pipe 3.

The spray nozzles 4 are attached to a plurality of important points of the spray pipe 3 to spray and discharge the chemical.

In the present invention, the cushioning elastic body 11 is interposed so that the spray pipe 3 does not bend or break even if it comes into contact with the branches and leaves of the crop.

That is, in the embodiment shown in FIG. 2, the spray pipe support 5 is provided to project upward from the front of the body frame F, and the height adjuster 6 is provided on the spray pipe support 5 so as to be vertically adjustable. The spray pipe support tube 2 is mounted on the height adjusting body 6, and the spray pipe 3 is supported on the spray pipe support tube 2.
A spray port nozzle 4 is attached to the spray pipe 3, and a cushioning elastic body 11 constituted by a spring or the like is interposed between the height adjuster 6 and the spray pipe support cylinder 2.

(F) Effects of the Invention The present invention is configured as described above, and has the following effects.

First, the present invention is used in orchards and horticultural houses.
In the small self-propelled sprayer A that sprays while traveling in the furrows by the front wheels 13, 13 and the rear wheels 12, 12, the spray pipe 3 is supported from below, and the spray is sprayed on the upper part of the spray pipe 3. If the upper portion of the spray pipe 3 is buffered by an obstacle in this state, the mouth nozzle 4 must be attached, and in this state, Japanese Utility Model Laid-Open Publication No. 62-27770 and Japanese Utility Model Laid-Open Publication No. 2-125775 The effect cannot be exhibited by the shock absorber as disclosed in the publication.

By disposing the cushioning elastic body 11 between the height adjuster 6 and the spray pipe support tube 2 as in the present invention, the spray pipe 3 is retracted from the position of the base end of the joint of the spray pipe 3. Therefore, damage to the spray pipe 3 and the spray nozzle 4 can be prevented.

Second, since the position where the cushioning elastic body 11 is arranged is a position near the lower end of the spray pipe 3, when an obstacle comes in contact with the tip of the spray pipe 3 which is arranged higher in the information, a small force is applied. As a result, the cushioning elastic body 11 is deformed, and the spray pipe 3 can be retracted, so that the sensitivity to the obstacle can be improved.

Third, since the height adjustment body 6 is mounted on the spray pipe support 5, the spray pipe support 5 itself is fixed to the body frame F, but the height can be adjusted by the height adjustment body 6. If the spray position differs depending on the type of crop, the position of the spray nozzle 4 can be adjusted.

[Brief description of the drawings]

FIG. 1 is an overall side view of a self-propelled sprayer A, and FIG. 2 is a side view of an embodiment in which a buffer elastic body 11 is interposed between a spray pipe support 5 and a spray pipe support cylinder 2. 11 Buffer elastic body 2 Spray pipe support tube 3 Spray pipe 4 Spray nozzle 5 Spray pipe support 6 Insert adjuster 7 Hose take-up reel

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takao Utazaki 767 Umena, Mishima City, Shizuoka Prefecture Inside (72) Inventor Hiroyuki Shibahara 767 Umena, Mishima City, Shizuoka Prefecture New Delta Industry ( 56) References JP-A-62-2770 (JP, U) JP-A-2-125775 (JP, U) JP-A 59-28706 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A self-propelled sprayer A that travels in a furrow in an orchard or a horticultural house by means of four wheels including front wheels 13, 13 and rear wheels 12, 12.
A spray pipe support 5 protrudes upward from the front of the body frame F, and a height adjuster 6 capable of vertically adjusting the position is attached to the spray pipe support 5, and the height adjuster 6 is attached to the height adjuster 6. In a nozzle holding mechanism of a self-propelled sprayer having a spray pipe support tube 2 mounted thereon, a spray pipe 3 supported by the spray pipe support tube 2, and a spray port nozzle 4 attached to the spray pipe 3, A nozzle holding mechanism for a self-propelled spraying machine, characterized by interposing a buffer elastic body 11 constituted by a spring or the like between the cylinder 6 and the spray pipe support cylinder 2.