JPH10216582A - Speed sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the visual recognition properties of a course in the rotation traveling by setting an operation room to be rotated by linking with the handle rotating operation in a speed sprayer provided with the operation room. SOLUTION: A speed sprayer is equipped with a nozzle section for jetting a chemical liquid to a rear section of a chemical liquid tank 2 and a blower fan for blowing air to a liquid chemical, and an operation room 5 is provided on the front of the chemical tank 2. The operation room 5 is formed into a closed room, and when front wheels 6, 6 are rotated either in the left or right direction through a steering mechanism having a tie rod 17, knuckle arms 18, 18 are linked with the handle rotation operation of an operator, simultaneously the operation room 5 is rotated with a rotating shaft 13 as its center through a rotating link mechanism having a connecting link 19 and a rotating link 20 connected with one knuckle arm 18. The visual recognition properties of a course in the rotation traveling are improved and also an area required for cornering can be reduced by the arrangement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a speed sprayer.

[0002]

2. Description of the Related Art A conventional speed sprayer for spraying a chemical solution has an open driver's seat in order to keep a vehicle height low and facilitate traveling in a field, but when spraying a chemical solution, a protective mask or a copper cover is used. Even if the user wears such a device, a speed sprayer having a closed operation room has been developed and put into practical use in consideration of the influence of a harmful chemical solution directly or indirectly on the human body. In other words, the driver's seat is operated while running the speed sprayer body, which sprays the chemical liquid supplied from the chemical liquid tank from the nozzle and diffuses and sprays the discharged chemical liquid by the blower fan. It is intended to accommodate a person.

[0003] The speed sprayer having the above-mentioned closed operation room has a higher vehicle height than the open type operation room, but can minimize the ingress of chemicals into the driver's seat, so that safety is reduced. In terms of improving.

[0004]

Generally, a speed sprayer turns a steering wheel in a right or left direction in a orchard or the like in order to spray a chemical solution while passing near a fruit tree. In many cases, a chemical solution is sprayed while traveling. Particularly, in a garden where fruit trees are crowded, a chemical solution is often sprayed while avoiding obstacles such as branches and trees while repeatedly turning left and right. At this time, if the driver's room is an open type speed sprayer, the visibility is not obstructed, but in a closed type speed sprayer, the side pillar between the windshield and the side glass is There was a problem that it was difficult to see obstacles and courses. Further, when the vehicle turns while turning sharply to the left and right, the vehicle body tends to understeer and the turning trajectory tends to bulge outward. If there are crowded branches and trees, the fruit trees may be damaged. In particular, in the configuration where the chemical tank and the driving room are integrally mounted on the frame, the corner area on the left and right outer wheel side of the front of the driving room expands outside the steering track during cornering, so the area required for cornering increases. , Inconvenient in small orchards,
It is not preferable for safety of fruit trees.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, to improve the visibility of a course in a turning operation in a closed driving room accommodating a driver,
An object of the present invention is to provide a speed sprayer capable of reducing an area required for cornering as much as possible.

[0006]

The present invention has the following arrangement to achieve the above object. That is, in a speed sprayer provided with a closed driving room for accommodating a driver who operates the speed sprayer and performs the operation of spraying the chemical solution, the driving room rotates in conjunction with a steering wheel rotation operation of the driver. It is characterized by. Further, the speed sprayer includes a steering mechanism for turning the front wheel in the left-right direction from the straight traveling direction by moving the tie rod connecting the front wheels supported by the knuckle arm to the left and right, and the one knuckle arm and the A rotation link mechanism for connecting a rotation shaft supporting a driving room with a rotation link via a rotation link. The front wheel is rotated via the steering mechanism in conjunction with a steering wheel rotation operation of the driver. Preferably, the operating room is rotated about the rotation axis via the rotation link mechanism.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an explanatory view showing the entire configuration of the speed sprayer, FIG. 2 is an enlarged side view of an operation room, and FIG. 3 is a plan view showing a steering mechanism and a rotary link mechanism provided at a lower portion of the operation room.

First, the overall structure of the speed sprayer will be described with reference to FIG. In FIG. 1, reference numeral 1 denotes a speed sprayer main body, which is equipped with a chemical tank 2 for storing a chemical, a nozzle 3 for ejecting the chemical, and a blower fan 4 for blowing the chemical. An engine room is provided on the rear side of the chemical liquid tank 2.

Reference numeral 5 denotes an operation room disposed in front of the chemical solution tank 2. The operation room 5 is formed in a closed room having six surfaces closed separately from the chemical solution tank portion 2, and the ceiling height is designed to be almost the same as the height of the chemical solution tank portion 2. It is formed so that it comes out.
The operation room 5 is integrally supported on the front side of a frame 7 that supports the chemical solution tank 2. In the driving room 5, there are provided an operation unit such as a steering wheel for traveling, which is necessary for traveling of a speed sprayer, and a control lever for driving the nozzle unit 3, the blowing fan unit 4 and the like when spraying a chemical solution. Is equipped.

Further, a windshield 8 is provided in front of the operation room 5 and a side glass 9 is provided on a side surface thereof, and these are separated by side pillars 10. An opening / closing door 11 is formed on a side surface of the driving room 5, and a driver enters and exits the room through the opening / closing door 11. Since the operation room 5 is closed, it is desirable to equip a ventilator with a filter, an air conditioner and the like. In addition, a plurality of viewing windows 12 through which the running surface and the like can be visually recognized, a rear-view mirror (not shown), and the like are provided on the side surface and the rear surface of the driving room 5.
It is preferable that a space is provided between the operation room 5 and the chemical solution tank portion 2 so as not to interfere with the chemical solution tank portion 2 in consideration of the rotating operation of the operation room 5.

Next, the rotating mechanism of the operating room 5 will be described with reference to FIGS. In FIG. 2, a driving room 5 is supported on the front side of a frame 7 that supports the speed sprayer main body 1. A rotating shaft 13 is rotatably provided on the frame 7 via a ball bearing. The rotating shaft 13 and the bottom of the operation room 5 are integrally connected. A guide roller 15 rotatably supported by L-shaped angle members 14 in the front-rear direction is vertically provided at the bottom of the operation room 5. The guide roller 15 moves along a groove-shaped guide rail 16 provided on the frame 7. Therefore, in the operation room 5, the guide roller 15 at the bottom part rotates on the frame 7 around the rotation shaft 13 along the guide rail 16 along an arc-shaped trajectory.

Next, the steering mechanism and the rotary link mechanism will be described with reference to FIG. First, the steering mechanism will be described. The tip of the rotating shaft of the handle (not shown) is connected by meshing the tie rod 17 with the gears. One end of a knuckle arm 18, 18 is connected to both ends of the tie rod 17, and the knuckle arms 18, 18 support the front wheels 6, 6 respectively. A hydraulic cylinder 21 is connected to the tie rod 17. In the hydraulic cylinder 21, a working oil flows from a pump (not shown) into a room partitioned left and right by a movable partition wall, and equal pressure is applied from both left and right sides to the partition wall. When the handle is turned in either direction, the pressure balance of the hydraulic oil flowing into the left and right chambers of the hydraulic cylinder 21 from a control valve (not shown) provided on the rotation shaft of the handle is lost, and the hydraulic oil is Flows into one room and flows out of the other room, so that the tie rods 17 can be moved to the left and right smoothly using not only the rotational force due to the mechanical connection according to the handle operation but also the hydraulic pressure so that the front wheels 6, 6 can be changed in the left-right direction rather than the straight traveling direction.

Next, the rotation link mechanism will be described.
One of the left and right knuckle arms 18, 18 (FIG. 3)
The upper end of the knuckle arm 18 has a connection link 1
9 are connected at one end. The other end of the connection link 19 is connected to a tip end of the rotation link 20. As shown in FIG. 2, the rotation link 20 is attached so as to be rotatable about a rotation shaft 13 as a rotation center of the driving room 5. Therefore, the front wheels 6 and 6 are rotated left or right through the steering mechanism having the tie rods 17 and the knuckle arms 18 and 18 in conjunction with the steering wheel turning operation of the driver, and at the same time, the one knuckle arm 18 is rotated.
The operation room 5 can be rotated about the rotation shaft 13 via the rotation link mechanism having the connection link 19 and the rotation link 20 connected to the driving room 5.

According to the above configuration, when the driver turns the steering wheel left and right in the driving room 5 when the speed sprayer travels, the driving room 5 turns the front wheels 6,6.
In this case, the side pillars 10 hinder the turning, so that the visibility of the course can be improved and the area required for cornering can be reduced as much as possible. Therefore, even in a narrow orchard or an orchard where branches and trees are crowded, it is possible to prevent the driving room 5 from interfering with the branches and trees and causing damage, and to improve operability and safety. Can be improved.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment.
Not only the case of rotation around the center 3 but also a large number of modifications can be made without departing from the spirit of the invention, such as the case where the frame can be rotated integrally with the frame 7 supporting the driving room 5. Of course.

[0016]

As described above, according to the present invention, the driving room is rotated in association with the turning operation of the steering wheel by the driver. When the driver turns the steering wheel left and right inside the vehicle and turns, the driver's room turns in conjunction with the direction of the front wheels, so that the side pillars in the turning operation are in the way and improve the visibility of the course, The area required for cornering can be reduced as much as possible. Therefore, even in a narrow orchard or an orchard where branches and trees are crowded, the operation room can be prevented from interfering with the branches and trees and causing damage, thereby improving operability and safety. Can be done.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of a speed sprayer.

FIG. 2 is an enlarged side view of a driving room.

FIG. 3 is a plan view showing a steering mechanism and a rotation link mechanism provided at a lower part of an operation room.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Speed sprayer main body 2 Chemical liquid tank part 3 Nozzle part 4 Blower fan part 5 Operation room 6 Front wheel 7 Frame 8 Front glass 9 Side glass 10 Side pillar 11 Opening door 12 Viewing window 13 Rotating shaft 14 Angle material 15 Guide roller 16 Guide rail 17 Tie rod 18 Knuckle arm 19 Connection link 20 Rotating link 21 Hydraulic cylinder

Claims (2)

[Claims] 1. A speed sprayer provided with a closed driving room for accommodating a driver who operates a speed sprayer and performs spraying of a chemical solution, wherein the driving room rotates in conjunction with a steering wheel turning operation of the driver. Speed sprayer characterized by moving. 2. The speed sprayer comprises: a steering mechanism for moving a front wheel in a left-right direction from a straight traveling direction by moving a tie rod connecting right and left front wheels supported by a knuckle arm to the left and right, and the one knuckle. A rotary link mechanism for connecting an arm and a rotary shaft supporting the driving room via a rotary link, and a front wheel via the steering mechanism in conjunction with a steering wheel rotation operation of a driver. 2. The speed sprayer according to claim 1, wherein the operation room is rotated about the rotation axis through the rotation link mechanism. 3.