JPH0332414Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a fuel tank in a work vehicle such as a combine harvester, and specifically relates to the structure of a fuel tank installed within the driver's seat frame.

(b) Conventional technology Conventionally, the driver's seat frame in a combine harvester was
A step plate is fixed to the front part of the upper surface of the frame, and a seat is fixed to the rear part of the frame via a seat frame. In the driver's seat frame surrounded by the left and right side plates and the rear side plate, left and right side plates,
A box-shaped fuel tank is housed in the front and rear side plates and the upper and lower side plates.

(c) Problems to be solved by the invention Therefore, the fuel tank is installed by being inserted into the driver's seat frame from above. As a result, the capacity of the fuel tank has become smaller. In addition, since the sides of the fuel tank are surrounded by the driver's seat frame, the fuel inlet, fuel gauge, etc. must be installed on the top of the fuel tank, which saves space above the fuel tank, that is, below the seat. It could not be used effectively.

(d) Means for solving the problem The present invention aims to solve the above-mentioned problems, and as shown in FIGS. 1 and 2, the rear plate 2a of the fuel tank 2 is , is characterized in that it is configured to also serve as a rear side plate of the driver's seat frame 4.

Specifically, the fuel tank 2 has left and right side plates 2b,
2c, upper and lower side plates 2d and 2e, a front side plate 2f, and a large rear side plate 2a that protrudes outward from the left and right side plates and the upper and lower side plates. Further, the driver's seat frame 4 is composed of left and right side plates 6, 6, a front connecting plate 8 and a support plate 10 that connect these side plates. And the fuel tank 2 has its front plate 2
The bracket 12 fixed to f is placed and fixed on the support plate 10 of the driver's seat frame 4, and the rear side plate 2a is fixed to both side plates 6, 6 of the frame 4, so that the frame 4 is installed.

(E) Operation Therefore, the fuel tank 2 is inserted from the rear, which is the open part of the driver's seat frame 4, and the fuel tank 2 is inserted from the rear, which is the open part of the driver's seat frame 4, and
a also serves as the rear side plate of the frame 4.
Therefore, the fuel inlet 18, fuel gauge, etc. are not interfered with by the driver's seat frame 4, and the rear side plate 2
It can be installed in part a.

(F) Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 6, the combine C has a body 17 supported by crawlers 15, and the body 17 has an engine 19 mounted on one side rearward and one side forward. Seats 7 are arranged, and a grain tank 21 is also installed. Further, a preprocessing section 23 is disposed at the front of the body 17 so as to be movable up and down.

Then, as shown in detail in Fig. 3, the driver's seat 7
The driver's seat frame 4 is fixed to the fuselage frame 17a, a step plate 25 is fixed to the front part of the frame 4, and a seat 27 is installed to the rear part via a seat frame. Furthermore, a fuel tank 2 is disposed within the driver's seat frame 4. As shown in detail in FIG. 2, the driver's seat frame 4 is made of two pieces of the same type, each having a stepped flat surface 6a, 6b whose front lower part is diagonally cut out and whose upper surface is raised for the step plate 25. It consists of side plates 6, 6 whose rear parts are open, and these side plates 6, 6 are connected at the front end by a connecting plate 8 and at the middle part by a support plate 10. On the other hand, the fuel tank 2 has left and right side plates 2b, 2 as shown in FIG.
c, upper and lower side plates 2d and 2e, a front side plate 2f, and a large rear side plate 2a that protrudes outward from the left and right side plates and the upper and lower side plates, and these side plates are fixed to form a box shape. Furthermore, the rear side plate 2a
has its four corners 16 bent to form a connecting part with the frame side plate 6, and the rear side plate 2a
A fuel inlet 18 is formed to protrude upward. Further, the front side plate 2f protrudes outward from the left and right side plates and the upper and lower side plates so as to have a width slightly smaller than the distance between the left and right side plates 6, 6 of the driver's seat frame 4, and has an L-shaped bracket 12 in the center thereof.
is fixed. As shown in detail in FIG. 3, the fuel tank 2 is inserted from the rear opening of the driver's seat frame 4, and the bracket 12 of the front side plate 2f is placed and fixed on the support plate 10 of the frame 4. The four corner connecting parts 16 of the rear side plate 2a are fixed to the frame side plates 6, 6, and the fuel tank 2 is integrally connected and supported by the driver's seat frame 4.
Further, a valve body 31 is placed and fixed on the rear flat surface 6b of the driver's seat frame 4 via a support plate, and a large number of solenoid valves 31a are installed on the upper surface of the valve body 31.
In addition, a fifth
As shown in detail in the figure, an electric control panel 34 is fixed and installed, and the control panel 34 controls each solenoid valve 31a.

On the other hand, a third
As shown in the figures to FIG.
It's getting old. The operation panel 9 has a monolever 1 erected on its right side, and is also provided with various operation switches, meters, and display lamps. The monolever 1 is configured to be able to swing in two steps only in the left and right direction, and the movement of the first step moves the lever 1 itself into the lever box 3.
3 to activate the limit switch,
It is designed to control the left and right sand clutches, and in its second stage movement, the lever box 33 is moved together with lever 1 to control the variable relief valve, thereby controlling the braking pressure of the left and right side brakes. . On the other hand, left and right side clutch levers 3 and 5 are supported on a shaft 35 supported within the operation console 11 so as to be rotatable in the front and rear directions, and the base ends of the levers 3 and 5 are respectively covered by the shaft 35. It is connected to arms 37, 37 via fitting sleeves 36, 36. Further, these arms 37, 37 extend downward through links 38, 38 at the central portion of the operating table 11, and are connected to arms 40a, 42a of double shafts 40, 42 installed below the step plate 25. . Double shafts 46 and 48 extend inward from these arms 40a and 42a through links 44 and 44 having ball joints, and are installed diagonally in the center of the fuselage, avoiding the fuel tank 2. The double shafts 46, 48 are connected to the arms 46a, 48a at one end, and are connected to the arms 46b, 48b at the other end of the double shafts 46, 48 via links 50, 50.
It is connected to arms 52a, 52a fixed to shift shafts 52, 52 in the transmission case 39, which extend in a direction parallel to the transmission case 48. Further, the distal ends of the left and right side clutch levers 3 and 5 protrude from the opening of the operation panel 11 toward the driver's seat 7 side, and further extend upward through the outer side of the operation panel 9 on the driver's seat side. Grip part 1 of monolever 1
The handles 3a and 5a are bent and extended inwardly at positions higher than a, respectively. Therefore, the grip portions 3a, 5 of the left and right side clutch levers 3, 5
The space between a and a is wide open so that it does not obstruct the visual view of the various meters and display lamps on the operation panel 9 or the operation of the various switches, and the grip portion 5a of the right side clutch lever 5 is located close to the monolever 1 when viewed from the front. The grip portion 5 is positioned so as to cover the
A is configured to serve as an armrest when the monolever 1 is operated, and also to serve as a protective frame for the monolever 1. Further, hooks 13, 13, which face the left and right side clutch levers 3, 5 and constitute a locking means, are fixed to the side plate on the driver's seat side of the operation console 11 with bolts 13a. By locking and fixing levers 3 and 5,
can be used as a handle for stabilizing the operator.

In addition, in FIG. 5, 41 is an F/R continuously variable transmission lever, which controls the belt type continuously variable transmission V (see FIG. 4) and the transmission case 39 via an electric signal.
By connecting to the internal hydraulic multi-plate clutch, the combine can be continuously shifted and run in forward and reverse directions. Also, 43 is the sub-shift lever, transmission case 3
It can be connected to a speed change gear within 9 to change speed between high speed, low speed and neutral. Furthermore, 45 is a hydraulic lever,
The preprocessing section 23 can be controlled to move up and down, and 47 is a threshing clutch lever, 49 is a preprocessing section clutch lever, and 51 is an engine control lever.
A vehicle speed memory switch 53 detects and stores the position of the continuously variable transmission lever 41 in the forward range, and sets the vehicle speed to the stored position when the aircraft moves forward after turning around, regardless of the forward position of the transmission lever 41. do. Further, reference numeral 55 is a brake/travel clutch pedal, which discharges the hydraulic oil of the left and right side clutches, releases the clutches, and is mechanically connected to the brakes to brake and operate the left and right brakes.

Note that the link mechanisms from the left and right side clutch levers 3, 5 are arranged together on the center side of the driver's seat frame 6 by means of double shafts 46, 48, etc., so the distance between the driver's seat frame side plates 6, 6 is The capacity of the fuel tank 2 housed within the driver's seat frame 4 can be increased. In addition, conventionally, the link mechanism was connected to the shift arm by passing it under the fuel tank, etc., and the distance between the link mechanism and the crawler 15 was narrow, and the link mechanism was affected by the soil rotation of the crawler. Mechanism 4
6, 48, 50, . . . are arranged apart from the crawler 15, the influence of mud caused by the crawler is small, and the crawler does not become an obstacle when the crawler is hooked or removed, which is advantageous from the viewpoint of maintenance.

(g) Effects of the invention As explained above, according to the invention, the rear side surface 2a of the fuel tank 2 is also used as the rear side plate of the driver's seat frame 4, so that the connection between the rear side surface of the tank and the frame side plate, which was previously necessary, is eliminated. Since no air gap is required, the fuel tank capacity can be increased accordingly, and the continuous operation time of the work vehicle can be extended. In addition, since the rear side plate 2a of the fuel tank 2 is used as a strength member of the driver's seat frame 4, the frame 4 It is possible to reduce the number of parts without sacrificing strength, and it is possible to reduce costs and weight. Furthermore, since the fuel inlet 18, fuel gauge, etc. can be installed on the side plate 2a that also serves as the driver's seat frame 4, the valve body 31, etc. can be installed above the upper surface 2d of the fuel tank 2, and the space below the seat 27 can be saved. It can be used effectively.

Further, since the fuel tank 2 is attached from the open rear of the driver's seat frame 4 and the rear side plate 2a is fixed to the driver's seat frame 4, the fuel tank 2 can be inserted, installed, or removed from the rear space. This makes assembly and maintenance of the fuel tank 2 easy, and since the fuel inlet 18 is installed to protrude rearward, fuel can be easily supplied without opening the cover or the like.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a fuel tank according to the present invention, Fig. 2 is a perspective view showing a driver's seat frame, and Fig. 3 is a perspective view showing a fuel tank according to the present invention.
FIG. 4 is a partially cutaway side view showing the driver's seat, FIG. 4 is a cross-sectional view of the operating console seen from the driver's seat, and FIG. 5 is a plan view of the driver's seat. FIG. 6 is a side view showing a combine harvester to which the present invention can be applied. 2...Fuel tank, 2a...Rear side plate, 2b, 2
c...Left and right side plates, 4...Driver's seat frame, 6...
Side plate, 7... Driver's seat, C... Work vehicle (combine harvester).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a work vehicle in which a driver's seat frame is mounted and fixed on the fuselage frame, and a fuel tank is installed within the driver's seat frame, the driver's seat frame is The rear side plate of the fuel tank is configured to be large so as to protrude outward from the left and right side plates, and the fuel tank is mounted from the rear of the driver's seat frame, and the rear side plate is configured so that the rear side plate of the fuel tank is opened. A fuel tank structure for a work vehicle, characterized in that the fuel tank is fixed to the driver's seat frame, and the rear side plate of the fuel tank also serves as a rear side plate of the driver's seat frame. (2) A fuel tank structure for a working vehicle according to claim 1 of the utility model registration claim, wherein a fuel inlet is installed in the rear side plate.