JP2021045088A - Riding management machine - Google Patents

Abstract

To provide a riding management machine which has a simple structure of a step for getting on/off, and facilitates getting on/off between the step for getting on/off and a floor.SOLUTION: A getting-on/off step 26 for getting on/off a floor 4 of a vehicle 1 is arranged at a position overlapping with wheels 15, 16 in a vehicle cross direction view, and thereby, the getting-on/off step 26 is prevented from contacting crops such as rice plants in furrows during a travel work in which the wheels 15, 16 travel between the furrows without employing a folding structure, and the getting-on/off step 26 has a simple structure. In addition, footsteps 26a, 26b, 26c of the getting-on/off step 26 are arranged step-wise so as to be ascended by one step toward either the front side or the rear side of the vehicle, and thereby, the uppermost footstep 26a can be arranged close to the floor 4 so as to facilitate getting on/off between the getting-on/off step 26 and the floor 4.SELECTED DRAWING: Figure 1

Description

The present invention relates to a passenger management machine.

Conventionally, a self-propelled passenger management machine has been known as a work machine for efficiently performing agricultural work such as spraying chemicals for control, weeding, top dressing, and grooving. For example, Patent Document 1 below discloses a boom sprayer that sprays a chemical solution as an example of a self-propelled passenger management machine. In this boom sprayer, for example, while running with wheels entering between the ridges of the field, the chemical solution is sprayed on crops such as rice in the ridges from a horizontally spread spray boom. In this boom sprayer, since the driver's seat is in a high position, a step for getting on and off is provided.

In this boom sprayer, a side floor for walking that projects to the side of the vehicle body and extends to the rear end of the vehicle body following the driver's seat floor is provided, and a step for getting on and off is provided at the rear end of this side floor. There is. The boarding / alighting step slopes diagonally upward toward the front of the vehicle so that the passenger can board the side floor from the rear of the vehicle. This boarding / alighting step includes an upper step and a lower step, and the lower step is moved upward so that the boarding / alighting step does not come into contact with crops such as rice in the ridges, for example, when the wheels are inserted between the ridges of the field to carry out the running work. It is designed to be folded into.

Japanese Unexamined Patent Publication No. 2014-073096

However, making the boarding / alighting step a foldable structure in this way complicates the structure.

The present invention has been made to solve such a problem, and even if the boarding / alighting step is not made into a folding structure, it does not come into contact with crops such as rice during running work, and boarding / alighting with a simple configuration. It is an object of the present invention to provide a passenger management machine equipped with a step.

According to the present invention, in the self-propelled passenger management machine (100) provided with the boarding / alighting step (26) for getting on / off the floor (4) of the vehicle (1), the boarding / alighting step (26) is a vehicle. The steps (26a, 26b, 26c), which are arranged at positions overlapping the wheels (15, 16) in the front-rear direction and constitute the boarding / alighting step (26), are step by step toward either the front or the rear of the vehicle. It is characterized by being arranged in a staircase so as to climb up.

According to such a passenger management machine (100), the boarding / alighting step (26) is arranged at a position where it overlaps with the wheels (15, 16) in the front-rear direction of the vehicle, so that the furrows do not have to be folded. During the traveling work in which the wheels (15, 16) travel, the boarding / alighting step (26) does not come into contact with crops such as rice in the ridges, and the structure of the boarding / alighting step (26) can be simplified. Further, since the steps (26a, 26b, 26c) of the step (26) for getting on and off are arranged in a staircase pattern so as to go up one step at a time toward either the front or the rear of the vehicle, the uppermost step. (26a) can be arranged close to the floor (4), and getting on and off between the step (26) for getting on and off and the floor (4) can be easily done.

Here, if the steps (26a, 26b, 26c) are arranged alternately in the left-right direction of the vehicle for each step, if one step is stepped on by one foot, the other foot is pressed without crossing the feet. You can get on and off easily by putting it forward and stepping on the next step.

In addition, the step (26) for getting on and off supports and fixes the steps (26a, 26b, 26c) and the steps (26a, 26b, 26c), and approaches the floor (4) diagonally upward in the vehicle front-rear direction and the vehicle left-right direction. The step (26) for getting on and off can be easily configured if the support column (26d) is provided so as to be inclined.

Further, if the passenger management machine (100) is a boom sprayer, the floor (4) is the driver's seat floor, and the boarding / alighting step (26) is arranged behind the front wheels (15), it is easy. You can get on and off the driver's seat floor (4).

As described above, according to the present invention, the boarding / alighting step can be made into a simple configuration, and getting on / off between the boarding / alighting step and the floor can be easily performed.

It is a perspective view which looked at the passenger management machine which concerns on embodiment of this invention from obliquely above. It is a top view of the passenger management machine shown in FIG. It is a side view of the passenger management machine shown in FIG. It is a perspective view which shows the step for getting on and off in FIG. 1 and the vicinity thereof in an enlarged manner. It is a VV arrow view of FIG.

Hereinafter, preferred embodiments of the passenger management machine according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view of the passenger management machine according to the embodiment of the present invention viewed from diagonally above, FIG. 2 is a plan view of the passenger management machine, FIG. 3 is a side view of the passenger management machine, and FIG. 4 is boarding / alighting. A perspective view showing the step and its vicinity in an enlarged manner, FIG. 5 is a VV arrow view of FIG. 3, and the passenger management machine of the present embodiment is, for example, a crop such as ridged rice during traveling work in a field. It is a boom sprayer that sprays chemicals. In the following description, "front", "rear", "left", and "right" are directions with reference to the boom sprayer.

As shown in FIGS. 1 to 3, the boom sprayer 100 is a self-propelled vehicle and includes a traveling vehicle 1 and a boom device 2 for spraying a chemical solution from the vehicle 1.

The vehicle 1 includes a vehicle body frame 3 having a substantially rectangular shape in a plan view that is long in the front-rear direction of the vehicle. A driver's seat floor 4 is provided on the front portion of the vehicle body frame 3, and a space for the driver to sit is formed on the rear side of the vehicle from the driver's seat floor 4 to perform driving operations, chemical spraying operations, and the like by the steering wheel 5. A driver's seat 6 is provided for this purpose. The driver's seat 6 is covered from above by the roof 7. The roof 7 is supported by roof pillars 8 erected from the sides of the driver's seat 6 on both sides of the vehicle body frame 3 in the left-right direction of the vehicle. A granule spraying device 9 is provided in front of the handle 5. The granule spraying device 9 includes a granule tank 10 for accommodating granules such as fertilizer as a chemical in the upper part, and a blower 11 (see FIG. 3) for sending out the granules in the lower part of the blower 11. By driving, the granules in the granule tank 10 are sprayed forward from the spray port 27.

An engine room 12 for accommodating an engine is provided on the rear portion of the vehicle body frame 3. A chemical solution tank 13 for accommodating the chemical solution sprayed from the boom device 2 is mounted between the driver's seat 6 and the engine room 12 on the vehicle body frame 3. A boom receiver 14 extending in the left-right direction of the vehicle is fixed to the upper portion of the chemical solution tank 13. A pair of front wheels 15 and a pair of rear wheels 16 are provided on the front and rear sides of the vehicle body frame 3 on both sides in the left-right direction of the vehicle.

The front wheels 15 and the rear wheels 16 are supported by the vehicle body frame 3 via the knuckles 17. The knuckle 17 changes the directions of the front wheels 15 and the rear wheels 16 and changes the traveling direction by operating the steering wheel 5 by the driver. The knuckle 17 extends in the vertical direction inside the front wheels 15 and the rear wheels 16, and as shown in FIG. 5, the knuckle 17 is configured to incline toward the outside in the left-right direction of the vehicle as it goes downward. Then, the driving force of the engine is transmitted to the front wheels 15 and the rear wheels 16 via the gear mechanism provided in the knuckle 17, and the front wheels 15 and the rear wheels 16 rotate. In the present embodiment, since the four-wheel drive is used, the front wheels 15 and the rear wheels 16 rotate, but front-wheel drive and rear-wheel drive may be used.

As shown in FIGS. 1 to 3, in front of the driver's seat 6 in the vehicle body frame 3, a pair of four-section link mechanisms 18 in the left-right direction of the vehicle are arranged so as to extend forward. The boom device 2 is supported by the vehicle body frame 3 via a four-section link mechanism 18. When the 4-section link mechanism 18 is operated by the expansion / contraction operation of the electro-hydraulic cylinder (actuator) 28, the front link 19 extending in the vertical direction of the 4-section link mechanism 18 moves up and down (up and down), and the center boom 21 described later. Goes up and down.

The boom device 2 has a horizontal control frame 20 extending in the left-right direction and the horizontal direction of the vehicle and fixed to the front link 19, and a center boom 21 arranged below the horizontal control frame 20 and longer in the left-right direction of the vehicle than the horizontal control frame 20. A pair of left and right and front and rear link rods 22 that rotatably connect the horizontal control frame 20 and the center boom 21, and a pair of side booms 23 that are rotatably connected to both ends of the center boom 21 are provided. ing.

That is, a trapezoidal link, which is a kind of four-node link mechanism, has a horizontal control frame 20 as an upper side, a center boom 21 as a lower side, and a pair of left and right and front and rear link rods 22 as hypotenuses. The center boom 21 supported by the horizontal control frame 20 via the link rod 22 can swing in a pendulum shape in the left-right direction of the vehicle, and becomes horizontal by horizontal control by gravity. Here, the horizontal is the direction that intersects the direction of the earth's gravity at right angles.

Nozzle pipes 24 are attached to the center boom 21 and the side boom 23, respectively, and each nozzle pipe 24 has a plurality of nozzles 25 for spraying chemicals along the longitudinal direction so that the spraying direction is downward. It is provided. When spraying the chemical solution, the side boom 23 is expanded from the state shown in FIGS. 1 to 3 so as to be linear with the center boom 21. Then, the chemical pressure feeding pump is driven while traveling by driving the engine, and the chemical liquid in the chemical liquid tank 13 is sprayed from the nozzle 25 via the nozzle pipe 24 of the center boom 21 and the side boom 23.

The side boom 23 is folded as shown in FIGS. 1 to 3 when the chemical solution is not sprayed, and is stored in a state of being diagonally raised backward at the lateral position of the vehicle 1. The side boom 23 is housed at both ends of the boom receiver 14 in the retracted state. In this state, as shown in FIG. 5, the side boom 23 is located outside the front wheel 15 in the left-right direction of the vehicle in the front-rear direction of the vehicle.

Further, as shown in FIG. 1, the boom sprayer 100 of the present embodiment is provided with a step 26 for getting on and off the driver's seat floor 4 at a high position. The boarding / alighting step 26 includes three steps 26a, 26b, 26c and a support column 26d for supporting and fixing the steps 26a, 26b, 26c. The treads referred to here include those called treads and treads.

As shown in FIGS. 1 to 5, the support column 26d is fixed to a hanging lower surface 4b that hangs from the left side surface of the left side portion 4a of the driver's seat floor 4 by, for example, a bolt or the like, and then hangs down slightly before the vehicle. It extends diagonally downward toward the rear and the outside in the left-right direction of the vehicle. As shown in FIG. 5, the support column 26d is located behind the knuckle 17 of the front wheel 15 and is arranged so as to substantially overlap the knuckle 17 in the front-rear direction of the vehicle. As shown in the above, the front wheels 15 are arranged so as to be located behind the middle in the height direction.

As shown in FIGS. 1 to 5, an auxiliary support column 26e for reinforcing the support column 26d is provided for the support column 26d. The upper portion of the auxiliary strut 26e is fixed to a position rearward from the upper portion of the strut 26d on the hanging surface 4b by, for example, a bolt, and extends downward and outward in the left-right direction of the vehicle at the same angle as the strut 26d. There is. That is, as shown in FIG. 5, the auxiliary support column 26e is located behind the support column 26d in the front-rear direction of the vehicle and is arranged so as to substantially overlap the support column 26d. As shown in the above, the support column 26d is fixed at the middle position of the inclined portion by, for example, welding.

As shown in FIGS. 1 to 5, in the three-stage steps 26a, 26b, 26c, a plurality of flat plate-shaped side plates extending in the vehicle front-rear direction are arranged in the vehicle left-right direction, and the front and rear ends of the side plates are arranged in the vehicle left-right direction. It is fixed to the flat front plate and the rear plate extending in the direction of the vehicle by welding or the like, and a plurality of notches for preventing slipping are provided on the upper surface of the side plate at intervals along the front-rear direction of the vehicle. Here, the number of side plates of the uppermost step 26a and the middle step 26b is four, and the number of side plates of the lowermost step 26c is three.

In the lowermost step 26c consisting of three side plates, as shown in FIGS. 2 and 4, between the right side plate and the middle side plate, the step descends diagonally toward the rear of the vehicle and outward in the left-right direction of the vehicle. The lower end of the support column 26d, which is inclined at the above, enters and is fixed by welding, for example. Further, the middle step 26b is located above the lowermost step 26c, and the side plate on the right side thereof is fixed to the left side surface of the support column 26d by, for example, welding. Further, the uppermost step 26a is located above the middle step 26b, and the side plate on the right side thereof is fixed to the left side surface of the support column 26d by, for example, welding.

That is, as shown in FIG. 5, the support column 26d is inclined diagonally downward toward the outside in the left-right direction of the vehicle. Therefore, as shown in FIGS. 2 and 5, the steps 26a, 26b, and 26c are step by step. They are arranged alternately in the left-right direction of the vehicle. Further, as shown in FIG. 3, the steps 26a, 26b, and 26c are arranged in a staircase pattern so as to go up step by step toward the front of the vehicle. The upper surfaces of these steps 26a, 26b, and 26c, which are the treads, are substantially horizontal, and the uppermost step 26a is a step on which the driver's seat floor 4 can get on and off. As shown in FIG. 5, in the step 26 for getting on and off, which includes the steps 26a, 26b, 26c and the support columns 26d that support and fix the steps 26a, 26b, 26c, the lower portion thereof is the front wheel 15 in the front-rear direction of the vehicle. It is placed at a position that overlaps with.

According to the boom sprayer 100 having such a configuration, since the boarding / alighting step 26 is arranged at a position overlapping the front wheels 15 in the front-rear direction of the vehicle, the ridges can be provided without making the boarding / alighting step 26 a folding structure. During the traveling work in which the wheels 15 and 16 travel, the boarding / alighting step 26 does not come into contact with crops such as rice in the ridges, and the configuration of the boarding / alighting step 26 can be simplified. Further, since the steps 26a, 26b, and 26c of the step 26 for getting on and off are arranged in a staircase shape so as to go up step by step toward the front of the vehicle, the uppermost step 26a approaches the driver's seat floor 4. It can be arranged, and getting on and off between the step 26 for getting on and off and the driver's seat floor 4 can be easily done.

Further, since the steps 26a, 26b, and 26c are arranged alternately in the left-right direction of the vehicle for each step, if one step is stepped on with one foot, the other foot is kept in front without crossing the feet. You can get on and off by taking out and stepping on the next step, making it easy to get on and off.

Further, in the step 26 for getting on and off, the steps 26a, 26b, 26c and the steps 26a, 26b, 26c are supported and fixed, and the columns are inclined so as to approach the driver's seat floor 4 diagonally upward in the vehicle front-rear direction and the vehicle left-right direction. Since 26d and 26d are provided, the boarding / alighting step 26 can be easily configured.

Further, since the step 26 for getting on and off is arranged behind the front wheel 15, it is possible to easily get on and off the driver's seat floor 4 from under the stored side boom 23 (see FIGS. 1, 4 and 5). ..

Although the present invention has been specifically described above based on the embodiment, the present invention is not limited to the above embodiment, and for example, the number of side plates of the steps 26a, 26b, 26c is a number other than the above. Further, the shapes of the steps 26a, 26b, and 26c are not limited to the above-mentioned shapes, and may be, for example, a round bar shape, and the point is that the shape may be a shape that allows the driver to get on and off. ..

Further, in the above embodiment, assuming that the driver's seat floor 4 can be easily got on and off from under the stored side boom 23, the step 26 for getting on and off is placed on the front wheel 15 so as to overlap the front wheel 15 in the front-rear direction of the vehicle. Although it is arranged at the rear, it may be arranged at the front of the front wheels 15 so as to overlap the front wheels 15 when viewed in the front-rear direction of the vehicle. In this case, by arranging the steps 26a, 26b, and 26c in a staircase pattern so as to go up step by step toward the rear of the vehicle, the uppermost step 26a can be arranged close to the driver's seat floor 4 for getting on and off. You can easily get on and off between step 26 and the driver's seat floor 4.

Further, when a side floor for walking that projects to the side of the vehicle body frame 3 and extends to the rear wheel 16 side following the driver's seat floor 4, the step 26 for getting on and off is performed on the rear wheel in the front-rear direction of the vehicle. It may be arranged behind the rear wheel 16 so as to overlap the 16. In this case, by arranging the steps 26a, 26b, 26c in a staircase pattern so as to go up step by step toward the front of the vehicle, the uppermost step 26a can be arranged close to the side floor, and the step 26 for getting on and off. You can easily get on and off between the stairs and the side floor. Further, the boarding / alighting step 26 may be arranged in front of the rear wheels 16 so as to overlap the rear wheels 16 when viewed in the front-rear direction of the vehicle. In this case, by arranging the steps 26a, 26b, 26c in a staircase pattern so as to go up step by step toward the rear of the vehicle, the uppermost step 26a can be arranged close to the side floor, and the step 26 for getting on and off. You can easily get on and off between the stairs and the side floor.

Further, in the above embodiment, the passenger management machine is a self-propelled boom sprayer for controlling, as being particularly suitable. For example, a self-propelled passenger for weeding, topdressing, grooving, etc. It can also be applied to management machines.

1 ... Vehicle, 4 ... Driver's seat floor (floor), 15 ... Front wheels (wheels), 16 ... Rear wheels (wheels), 26 ... Steps for getting on and off, 26a, 26b, 26c ... Steps, 26d ... Supports, 100 ... Boom sprayer (Passenger management machine).

Claims (4)

In a self-propelled passenger management machine (100) provided with a step (26) for getting on and off the floor (4) of the vehicle (1).
The boarding / alighting step (26) is arranged at a position overlapping the wheels (15, 16) in the front-rear direction of the vehicle.
The steps (26a, 26b, 26c) constituting the boarding / alighting step (26) are arranged in a staircase shape so as to go up step by step toward either the front or the rear of the vehicle. Passenger management machine (100). The passenger management machine (100) according to claim 1, wherein the steps (26a, 26b, 26c) are alternately arranged in the left-right direction of the vehicle for each step. The boarding / alighting step (26)
With the steps (26a, 26b, 26c)
The step (26a, 26b, 26c) is supported and fixed, and a support (26d) that is inclined so as to approach the floor (4) by diagonally rising in the vehicle front-rear direction and the vehicle left-right direction is provided. The passenger management machine (100) according to claim 1 or 2. The passenger management machine (100) is a boom sprayer.
The floor (4) is a driver's seat floor.
The passenger management machine (100) according to any one of claims 1 to 3, wherein the boarding / alighting step (26) is arranged behind the front wheel (15).

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