JP5789583B2 - Self-propelled control machine - Google Patents

Description

  The present invention relates to a self-propelled control machine.

  Conventionally, a self-propelled control machine for spraying chemicals such as agricultural chemicals on crops is known (see, for example, Patent Document 1). In general, the self-propelled control machine has a cabin that houses a seat in the front part of the vehicle body, and a medicine tank behind the cabin. It is desirable for the self-propelled control machine to reduce the overall length in the front-rear direction of the vehicle body in order to ensure turning performance in a narrow place. In the self-propelled control machine described in Patent Document 1, The lower part has a shape that protrudes forward of the vehicle body along the body frame on which the drug tank is mounted, and a recess for installing a seat is provided in the extended part of the drug tank, and the vehicle tank is moved in the longitudinal direction of the vehicle body by entering the cabin. The overall length is reduced.

Japanese Patent Laid-Open No. 2002-283737

  In such a self-propelled control machine, the portion of the cabin that contacts the drug tank is fixed to the upper surface of the drug tank as in Patent Document 1. However, in this case, a gap is generated between the cabin and the medicine tank, and as a result, the sealing performance of the cabin is lowered.

  Accordingly, the present invention provides a self-propelled control machine capable of ensuring the sealing performance of the cabin while effectively utilizing the space in the cabin when the medicine tank is provided with a recess and a seat is disposed in the recess. Objective.

  The self-propelled pest control machine (10) of the present invention constitutes a vehicle body (1), has a body frame (4) extending in the front-rear direction, a shape provided on the body frame (4), and opened to the front and upward. , A medicine tank (8) formed as a medicine tank side recess (8b), a seat (31) arranged in the medicine tank side recess (8b), the body frame (4) and the medicine tank (8) A self-propelled control machine (10) provided adjacent to the front portion of the vehicle and including a cabin (7) for accommodating a seat (31), wherein the cabin (7) is attached to the drug tank (8). The partition wall (29) is provided with a partition wall (29) that closes the facing portion, and the partition wall (29) is housed in the medicine tank side recess (8b) and has a recess recessed to receive the seat (31). ) As.

  According to this self-propelled control machine (10), the portion of the cabin (7) that faces the drug tank side recess (8b) is closed by the partition wall (29). Sealability is ensured. Moreover, since the partition wall side recessed part (29a) provided in the partition wall (29) is recessed so that the seat (31) may be accommodated while being accommodated in the chemical | medical agent tank side recessed part (8b), it is a partition wall side recessed part. By providing the seat (31) at (29a), the space in the cabin (7) can be used effectively.

  Here, the partition wall (29) has an opening (29c) communicating with the drug tank (8) or the machine body frame (4), and the seat (31) is connected to the drug tank (29c) via the opening (29c). 8) or a fixed body frame (4), and between the seat (31) and the partition wall (29), a sealing member (33) for keeping the cabin (7) airtight is provided with an opening ( 29c) is preferably provided. According to this, it is not necessary to arrange a member for fixing the seat (31) in the cabin (7), and the space in the cabin (7) can be used more effectively. Further, a sealing member (33) for keeping the cabin (7) airtight is provided between the seat (31) and the partition wall (29) so as to surround the opening (29c). The sealing property of the cabin (7) can be ensured.

  The opening (29c) is preferably provided in the flat portion (29b) of the partition wall side recess (29a). According to this, the sealing performance of the cabin (7) by the sealing member (33) can be easily ensured.

  In addition, the partition wall (29) has an opening portion (29b) constituting the flat portion of the partition wall side recess (29a) that accommodates the seat (31), and an opening portion (8b) communicating with the drug tank side recess (8b). 29c), a seat fixture (32) is disposed in the opening (29c), and the seat fixture (32) closes the opening (29c) from the upper side on the cabin (7) side. (32a) and a portion (32b) that enters the opening (29c) and abuts against the drug tank side recess (8b), and the seat (31) is placed on the seat fixture (32). It is attached to the medicine tank side recess (8b) by fastening means (34) passing through the seat fixture (32), and between the closed portion (32a) and the bottom wall (29b) of the seat fixture (32). Has a sealing member (33) for keeping the cabin (7) airtight. It is preferably provided so as to surround the (29c). According to this, the seat (31) placed thereon of the seat fixture (32) disposed in the opening (29c) is treated by the fastening means (34) penetrating the seat fixture (32). Since it is attached to the tank side recess (8b), there is no need to arrange a member for fixing the seat (31) in the cabin (7), and the space in the cabin (7) can be used more effectively. it can. Further, a sealing member (33 for keeping the cabin (7) airtight between the closing portion (32a) of the seat fixture (32) and the bottom wall (29b) of the partition wall side recess (29a). ) Is provided so as to surround the opening (29c), so that the sealability of the cabin (7) can be secured. In addition, since the bottom wall (29b) of the partition wall side recess (29a) is generally flat, the sealing performance of the cabin (7) by the sealing member (33) can be easily ensured.

  According to the present invention, when a recess is provided in a medicine tank and a seat is disposed in the recess, a self-propelled control machine capable of ensuring the sealing performance of the cabin while effectively utilizing the space in the cabin is provided. Can do.

It is a side view of the self-propelled control machine of this embodiment. It is a perspective view of the vehicle body in FIG. It is an upper perspective view of a medicine tank and an airframe frame. It is a disassembled perspective view of a cabin. It is a disassembled perspective view of a cabin frame, a seat related member, a partition wall, a chemical | medical agent tank, and a body frame. It is a downward perspective view of a seat provided with a seat fixture. It is sectional drawing of the installed seat and its periphery.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same part or an equivalent part, and the overlapping description is abbreviate | omitted.

  FIG. 1 is a side view of the self-propelled control machine 10 of the present embodiment. The self-propelled pest control machine 10 is a riding-type boom sprayer that has a vehicle body 1, wheels 2, and a spraying boom 3 and sprays chemicals. The vehicle body 1 has a body frame 4 that extends in the front-rear direction. A pair of left and right axles 5 extend downward from front and rear portions of the lower surface thereof, and a wheel 2 is attached to the tip of each axle 5.

  FIG. 2 is a perspective view of the vehicle body 1 with the wheels 2 and the spreading boom 3 removed from the self-propelled control machine 10. As shown in FIG. 1 and FIG. 2, the vehicle body 1 has an engine room 6 in which an engine for driving each wheel 2 is housed in the rear surface of the upper surface of the body frame 4, and a cabin 7 that houses a seat 31. It is arranged at the front upper part of the body frame 4. In addition, a medicine tank 8 is disposed in the middle part of the machine body frame 4 in the front-rear direction. In FIG. 2, the window and the door are removed from the cabin 7 so that the seat 31 accommodated in the cabin 7 can be seen.

  Here, the lower part of the medicine tank 8 has an overhanging part 8 a that protrudes forward along the body frame 4, and is adjacent to the front part of the medicine tank 8 and forms a skeleton of the cabin 7. The rear part and the lower part (see FIG. 5) have a concave shape that is curved following the shape of the overhanging portion 8a of the drug tank 8.

  A spreading boom 3 is attached to a front end portion of the machine body frame 4 via a center boom 9 that is mounted in a horizontal and vertical direction with respect to the longitudinal direction of the vehicle body 1. The spraying boom 3 is for spraying a chemical solution as a medicine, and is folded when the chemical solution is not sprayed, and is stored in a state where the vehicle body 1 is obliquely raised rearward with respect to the vehicle body 1 as shown in FIG. Has been. When spraying the chemical solution, the spreading boom 3 is expanded so as to be in a straight line with respect to the center boom 9.

  The vehicle body 1 includes a side floor 11 for improving ease of getting on and off. The side floor 11 is a portion projecting laterally from the left and right side edges of the body frame 4, is configured in a lattice shape, and extends from the entrance of the cabin 7 to the rear end of the body frame 4. Further, a step 12 for getting on and off for the operator to get on and off the side floor 11 is provided at the rear part of the side floor 11.

  The vehicle body 1 also has a pair of handrails 13 that rise from the rear portions of the side floors 11 on both sides of the vehicle body 1, extend to the height of the engine room 6, bend forward, and have a front portion fixed to the top of the drug tank 8. , 13 are provided.

  FIG. 3 is an upper perspective view of the medicine tank 8 and the body frame 4, and FIG. 4 is an exploded perspective view of the cabin 7. As shown in FIG. 3, the drug tank 8 has a protruding portion 8a whose lower portion protrudes forward along the body frame 4 as described above, and is opened forward and upward to the protruding portion 8a. A recess having a shape corresponding to the seat 31 is formed as the drug tank side recess 8b. A plurality of drug tank side female screw portions 8d for attaching the seat 31 are provided on the bottom wall 8c constituting the drug tank side recess 8b.

  The body frame 4 is for a bolt for fixing the cabin 7 to a portion extending forward of the position where the medicine tank 8 is disposed, of the pair of skeleton members 4a, 4a extending in the front-rear direction on both the left and right sides. A hole 4b is provided, and a frame member 4c for fixing the cabin 7 is provided on both sides of the frame member 4c provided so as to be bridged between the front portions of the pair of frame members 4a and 4a. There are several standing.

  The pair of handrails 13 and 13 fixed to the top of the medicine tank 8 described above are provided with female screw portions 13a and 13a for fixing the cabin at the tip portions thereof.

  As shown in FIG. 4, the cabin 7 has a roof 22, a front glass 23, a front panel 24, a door 25, a side glass 26, a rear glass 27, a floor plate 28, and a cabin frame 21 that forms the skeleton of the cabin 7. The partition wall 29 is attached.

  The cabin frame 21 has a rectangular frame body 21a on which the roof 22 is installed and a pair of left and right front frame members 21b and 21b extending downward from the front, middle, and rear parts in the front-rear direction of the frame 21a. And a pair of left and right intermediate frame members 21c and 21c and a pair of left and right rear frame members 21d and 21d (see also FIG. 5).

  The rear skeleton member 21d extends downward from the rear portion of the frame body 21a, is then curved so as to follow the shape of the protruding portion 8a of the drug tank 8, extends forward and downward, and is connected to the intermediate skeleton member 21c. The bottom linking skeleton member 21e on which the floor plate 28 is installed is extended to be connected to the front skeleton member 21b. At a position where the bending of the rear skeleton member 21d starts, a rear connecting skeleton member 21f is provided between the pair of left and right rear skeleton members 21d and 21d. Further, the front skeleton member 21b extends downward from the frame body 21a, is then curved and extends rearward and downward, and extends to the above-described bottom connection skeleton member 21e and is connected to the rear skeleton member 21d. In addition, a front connecting skeleton member 21g that spans between the pair of left and right front skeleton members 21b and 21b is provided immediately before the curve of the front skeleton member 21b starts.

  And the roof 22 is installed in the upper part of the frame 21a, and the front glass 23 is in the area | region enclosed by the front part of the frame 21a, the left-right paired front frame member 21b, 21b, and the front connection frame member 21g. A front panel 24 is attached to a region that is attached and surrounded by the front connection skeleton member 21g, the pair of left and right front skeleton members 21b and 21b, and the bottom connection skeleton member 21e.

  Further, a door 25 is attached to a region surrounded by the side of the frame 21a, the front skeleton member 21b, the intermediate skeleton member 21c, and the rear skeleton member 21d, and the side of the frame 21a, the intermediate skeleton member A side glass 26 is attached to a region surrounded by 21c and the rear skeleton member 21d, and a rear glass is disposed in a region surrounded by the rear portion of the frame 21a, the pair of left and right rear skeleton members 21d and 21d, and the rear connecting skeleton member 21f. 27 is attached.

  A partition wall 29 is attached to a region surrounded by the rear connecting skeleton member 21f, the pair of left and right rear skeleton members 21d and 21d, and the bottom connecting skeleton member 21e. The partition wall 29 is configured to accommodate the seat 31, and has a recess recessed as a partition wall-side recess 29a so as to be received in the drug tank-side recess 8b. The partition wall 29 closes the rear portion and the lower portion of the cabin 7 (the portion of the cabin 7 that faces the drug tank side recess 8b).

  The cabin frame 21 is provided with first cabin side brackets 7a and 7a for connecting the cabin 7 and the front end of the handrail 13 at positions where the bending of the left and right rear frame members 21d and 21d starts. . Also, second cabin side brackets 7b and 7b for fixing the cabin 7 to the fuselage frame 4 are respectively provided below the portions of the pair of left and right rear frame members 21d and 21d extending to the bottom connecting frame member 21e. Is provided. Further, of the pair of left and right front skeleton members 21 b and 21 b, third cabin side brackets 7 c and 7 c for fixing the cabin 7 to the fuselage frame 4 are provided at portions that are curved and extend rearward and downward. Each is provided. Then, the first cabin side bracket 7a is screwed to the female thread portion 13a, the second cabin side bracket 7b is screwed to the skeleton member 4a using the bolt holes 4b, and the third cabin side bracket 7c. Is fixed to the body frame 4 and is connected to the front end portion of the handrail 13 by being screwed to the body frame side brackets 4d and 4d.

  FIG. 5 is an exploded perspective view of the cabin frame 21, the seat-related member (seat 31, seat fixture 32, sealing member 33, fastening means 34), partition wall 29, drug tank 8, and body frame 4. The partition wall 29 accommodates the seat 31 inside the partition wall side recess 29a, and the flat bottom wall 29b of the partition wall side recess 29a has an opening 29c communicating with the drug tank side recess 8b. Is provided. The seat 31 is attached to the medicine tank side recess 8b via a seat fixture 32 that enters the opening 29c.

  6 is a lower perspective view of the seat 31 provided with the seat fixture 32, and FIG. 7 is a sectional view of the installed seat 31 and its periphery. As shown in FIG. 6, a seat mounting member 31a is disposed on the lower side of the seat 31, and the seat 31 is moved forward by the seat mounting member 31a so as to be allowed to rotate via a shaft 31b. The lower part is supported. A seat fixture 32 is disposed below the seat mounting member 31a.

  The seat fixture 32 has a top plate (blocking portion) 32a on a flat plate that closes the opening 29c from the upper part on the cabin 7 side, and a surface opposite to the seat 31 of the top plate 32a (hereinafter referred to as a back surface). And a protrusion 32b (portion that contacts the drug tank side recess) 32b that is formed in a rectangular ring shape and enters the opening 29c to contact the bottom wall 8c of the drug tank side recess 8b. Formed. The seat fixing tool 32 is provided with a bolt hole 32c through which a seat fixing bolt 34 as a fastening means of the seat 31 is passed, at a position corresponding to the drug tank side female screw portion 8d. Similarly, the seat mounting member 31a is provided with a bolt hole at a position corresponding to the drug tank side female screw portion 8d. A portion 8p forming the drug tank side female screw portion 8d in the bottom wall 8c is thick in the vertical direction, and a drug tank side female screw portion 8d is formed by inserting a nut into the thick portion 8p. .

  A pair of left and right cushion rubbers 32d and 32d that receive and support the rear portion of the seat 31 are attached to the rear portion of the same surface as the seat 31 of the top plate 32a by bolting from the back surface of the top plate 32a. The top of the cushion rubber 32d is brought into contact with the rear part on the back side of the seating surface of the seat, and supports the weight of the driver.

  In the seat 31, as shown in FIG. 7, the seat fixing bolt 34 is passed through the bolt hole of the seat mounting member 31a and the bolt hole 32c of the seat fixture 32, and is screwed into the drug tank side female thread portion 8d. By combining, the seat attachment member 31a and the seat fixture 32 are fastened together and attached to the bottom wall 8c of the medicine tank side recess 8b.

  In addition, a sealing member 33 for keeping the inside of the cabin 7 airtight is provided in an annular shape between a portion of the rear surface of the top plate 32 a outside the protruding portion 32 b and the bottom wall 29 b of the partition wall 29. The sealing member 33 is a packing here and is provided so as to surround the opening 29c.

  According to the self-propelled pest control machine 10 of the present embodiment configured as described above, the portion of the cabin 7 that faces the drug tank side recess 8b is closed by the partition wall 29. Sealability is ensured. Thereby, it can prevent that the spread | dispersed chemical | medical solution penetrate | invades into the cabin 7 from the clearance gap between the cabin 7 and the chemical | medical agent tank 8, and efficiency, such as air conditioning, is improved regarding the air conditioning in the cabin 7. FIG. Moreover, since the partition wall side recessed part 29a provided in the partition wall 29 is recessed so that the seat 31 may be accommodated while being accommodated in the chemical | medical agent tank side recessed part 8b, the seat 31 can be provided in the partition wall side recessed part 29a. it can. That is, in the self-propelled pest control machine 10 in which a recess is provided in the medicine tank 8 and a seat is disposed in the recess, the space in the cabin 7 can be used effectively.

  In addition, the seat 31 placed on the seat fixture 32 arranged in the opening 29c of the partition wall 29 is fixed to the bottom wall 8c of the drug tank side recess 8b by the seat fixing bolt 34 penetrating the seat fixture 32. Therefore, it is not necessary to arrange a member for fixing the seat in the cabin 7, and the space in the cabin 7 can be used more effectively. At the same time, since the structure of the cabin frame 21 is simple and lightweight, the cost can be reduced and the traveling performance of the self-propelled pest control machine 10 can be improved. Further, since a sealing member 33 for keeping the inside of the cabin 7 airtight is provided between the seat fixture 32 and the bottom wall 29b of the partition wall side recess 29a, the cabin 29 is provided. 7 can be secured. At this time, since the bottom wall 29b of the partition wall side recess 29a is a flat portion, the sealing performance of the cabin 7 by the sealing member 33 can be easily secured.

  Further, the cabin 7 is installed by fixing the cabin 7 at a total of three locations, one on the left and right sides of the vehicle body 1, two on the body frame 4 and one on the tip of the handrail 13 fixed to the top of the medicine tank 8. Therefore, the load of the cabin 7 is dispersed and the bending moment concentrated on the body frame 4 can be mitigated. At the same time, the need to increase the strength of the body frame 4 is reduced, and the cost can be reduced. Moreover, since the lower part of the medicine tank 8 has a shape projecting forward of the vehicle body 1 along the body frame 4, the entire length of the vehicle body 1 in the front-rear direction is reduced, and the turning performance in a narrow place can be secured.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, in the above embodiment, an example of a riding boom sprayer that sprays a chemical solution is shown as a self-propelled control device. However, if the cabin needs to be sealed, the present invention can be applied to other self-propelled control devices. You may apply to the machine.

  Moreover, in the said embodiment, although the part which accommodates the seat 31 of the chemical | medical agent tank side recessed part 8b showed the shape which has the bottom wall 8c, the bottom wall is not provided in the part which accommodates the seat 31 of the chemical | medical agent tank side recessed part 8b. There may be a mode in which the seat 31 is fixed to the body frame 4 (for example, the drug tank 8 has a U-shape in plan view).

  In addition, according to the aspect shown by the said embodiment, in order to aim at the effective utilization of the space in a cabin, although the seat is being fixed to the chemical | medical agent tank side recessed part (in the above-mentioned example, the body frame 4) through an opening part. It is also conceivable that the cabin is sealed without providing an opening in the partition wall, and a member for fixing the seat is disposed in the cabin.

  DESCRIPTION OF SYMBOLS 1 ... Car body, 4 ... Airframe frame, 7 ... Cabin, 8 ... Drug tank, 8a ... Overhang part, 8b ... Drug tank side recessed part, 10 ... Self-propelled control machine, 29 ... Partition wall, 29a ... Partition wall side recessed part, 29b ... Bottom wall, 29c ... Opening, 31 ... Seat, 32 ... Seat fixture, 32a ... Top plate (blocking portion), 32b ... Projection (part contacting the drug tank side recess), 33 ... Sealing member, 34 ... Seat fixing bolt (fastening means).

Claims (4)

A body frame (4) constituting the vehicle body (1) and extending in the front-rear direction;
A medicine tank (8) provided on the machine body frame (4) and having a concave portion that is open forward and upward as a medicine tank side concave portion (8b);
A seat (31) disposed in the drug tank side recess (8b);
A self-propelled pest control machine (10) comprising: a cabin (7) for housing the seat (31) provided on the machine body frame (4) and adjacent to a front side portion of the medicine tank (8); There,
The cabin (7) includes a partition wall (29) that closes a portion facing the drug tank (8),
The partition wall (29) is housed in the medicine tank side recess (8b) and has a recess recessed to receive the seat (31) as a partition wall side recess (29a) ( 10). The partition wall (29) has an opening (29c) communicating with the drug tank (8) or the machine body frame (4),
The seat (31) is fixed to the medicine tank (8) or the machine body frame (4) through the opening (29c),
Between the seat (31) and the partition wall (29), a sealing member (33) for keeping the cabin (7) airtight is provided so as to surround the opening (29c). The self-propelled pest control machine (10) according to claim 1.   The self-propelled pest control machine (10) according to claim 2, wherein the opening (29c) is provided in a flat part (29b) of the partition wall side recess (29a). The partition wall (29) communicates with the drug tank side recess (8b) to a bottom wall (29b) constituting the flat portion of the partition wall side recess (29a) that houses the seat (31). Having an opening (29c);
A seat fixture (32) is disposed in the opening (29c),
The seat fixture (32) includes a closing portion (32a) that closes the opening (29c) from the upper side, which is the cabin (7) side, and the medicine tank side recess (32c) that enters the opening (29c). 8b) and a portion (32b) that abuts,
The seat (31) is mounted on the medicine tank side recess (8b) by fastening means (34) placed on the seat fixture (32) and penetrating the seat fixture (32).
Between the closing part (32a) and the bottom wall (29b) of the seat fixture (32), a sealing member (33) for keeping the cabin (7) airtight is provided in the opening part. The self-propelled pest control machine (10) according to claim 2 or 3, provided around (29c).

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