JP4653410B2 - Tank cover structure for work vehicle - Google Patents

Description

  The present invention relates to a tank cover structure in a work vehicle in which tanks are arranged on one or both sides of a cabin.

2. Description of the Related Art A tractor in which an oil tank for hydraulic oil and a fuel tank are disposed on both the left and right sides of a cabin mounted on a traveling machine body is known (see, for example, Patent Document 1).
JP-A-8-72566

  The upper surface of the oil tank and the fuel tank is particularly bare. For this reason, in order to prevent contact with the unfinished surface of the tank and not to impair the aesthetics of the design, it is necessary to deburr and beat the upper surface of both tanks, finish processing with a grinder, etc., increasing costs However, there was a drawback that it was inevitable.

The tank cover structure in the work vehicle according to the present invention for solving the above-described problem is a work vehicle in which tanks 7 and 8 for storing oil or fuel are disposed on one or both sides of the cabin 4 mounted on the traveling machine body 1. The tanks 7 and 8 are made of a plurality of metal plates, and resin covers 21 and 22 that cover the upper surfaces 7U and 8U of the tanks 7 and 8 with a part of the outer peripheral surfaces of the tanks 7 and 8 exposed. The covers 21 and 22 include at least side surfaces 21S and 22S that cover the upper end portions from the front end portions of the outer surfaces 7S and 8S of the tanks 7 and 8, and a front surface 21F that covers the front surfaces 7F and 8F of the tanks 7 and 8, respectively. , and 22F, the upper surface of the tank 7,8 7U, top 21U covering the 8U, outer surface 7S of the tank 7, 8 and a 22U, a portion of 8S is integrally molded as denudation tank 7,8 When So that a gap is formed between the cover 21 and 22, via a stay 23, 24, 26 fixedly attached to the tank 7 and 8, the tank side 21S, edges 22S of the cover 21 The first feature is that the lens is curved toward the 7th and 8th sides.

Further, the cover 21, 22 is provided with a recess 28 for oil or fuel inlet, the outside of the recess 28 is opened, and the bottom surface 28a of the recess 28 is an inclined surface that descends outward. This is the second feature.

  According to the structure of the present invention configured as described above, since the upper surface side of the tank is covered with the resin cover and the upper surface of the tank is not bare, the deburring, beat removing and grinder on the upper surface side of the tank are prevented. Even without finishing, the upper surface of the plastic cover with a smooth finish surface prevents contact with the unfinished surface of the tank in an assembled work vehicle and impairs the design aesthetics. There is an effect that it is not.

  Therefore, the finishing process of the tank upper surface is not required, and the tank can be easily manufactured. Further, since the cover is a molded product made of resin, it is not necessary to finish the upper surface, and the cost for finishing can be reduced. Since a part of the outer peripheral surface of the tank is always bare, the cover does not hinder the cooling effect of oil or the like in the tank.

  On the other hand, by integrally attaching the cover to the tank side, the cover and the tank do not move separately as in the case where the cover is attached to the cabin side and the tank is attached to the body frame side. For this reason, it is possible to prevent the inconvenience that the cover and the tank come into contact with each other due to the vibration of the airframe, it is not necessary to provide a cushioning material or the like on the edge of the cover, and the gap between the cover and the tank can be accurately managed. There is an advantage that the gap between the cover and the tank can be reduced and the variation in the gap can be reduced.

  Then, a recess for oil or fuel inlet is provided in the cover, the outside of the recess is opened, and the bottom surface of the recess is an inclined surface that descends outward. There is an effect that dust and dirt can be easily removed from the inclined surface to the outside of the traveling machine body.

  FIG. 1 is a side view of a tractor employing the present invention. The traveling machine body 1 includes a crawler type traveling device 2. A bonnet 3 is provided in front of the traveling machine body 1, and an engine is housed in the bonnet 3. A driver's seat having a cabin 4 is provided behind the bonnet 3. A three-point link mechanism 6 for connecting a tillage working machine or the like is provided behind the cabin 4. The three-point link mechanism 6 is hydraulically driven up and down by a hydraulic cylinder (not shown) as in the prior art.

  As shown in FIG. 2, an oil tank 7 and a fuel tank 8 of hydraulic oil for hydraulic equipment such as the hydraulic cylinder are provided on the left and right sides of the cabin 4. The oil tank 7 is composed of a plurality of metal plates, and has a substantially trapezoidal shape in a side view, a front view, and a back view, as shown in FIGS. The front surface 7F is inclined downward and the outer surface 7S is inclined downward. An oil supply section for oil is provided on the upper surface 7U, and an oil supply cap 10 is attached.

  A flange 11 projecting forward is provided on the front surface 7F of the oil tank 7. The rear surface 7R is provided with a flange 12 that protrudes rearward. A plate 13 projects rearward from the rear end of the outer surface 7S. The front and rear flanges 11 and 12 are fixed to the body frame of the traveling body 1, and the oil tank 7 is attached to the body frame 1 as shown in FIG. 4.

  On the back surface 7R side of the oil tank 7, a hydraulic device case 9 shown in FIG. 5 that accommodates a hydraulic control device such as a hydraulic valve is fixed and attached via the plate 13. The hydraulic equipment case 9 is integral with the oil tank 7.

  The fuel tank 8 is composed of a plurality of metal plates, and has a substantially trapezoidal shape in a side view, a front view, and a back view, as shown in FIGS. The front surface 8F is inclined downward and the outer surface 8S is inclined downward. A fuel supply section 14 is provided on the upper surface 8U. A fuel cap is attached to the oil filler 14 as will be described later.

  A flange 16 projecting forward is provided on the front surface 8F of the fuel tank 8. A flange 17 protruding rearward is provided on the back surface 8R. A plate 18 projects rearward from the rear end of the outer side surface 8S. The front and rear flanges 16 and 17 are fixed to the body frame of the traveling body 1, and the fuel tank 8 is attached to the body frame 1 as shown in FIG.

  On the back surface 8R side of the fuel tank 8, an electrical case 19 shown in FIG. 8 for housing electrical components is fixed and attached via the plate 18. The electrical case 19 is integral with the fuel tank 8.

  The upper side of the oil tank 7 to which the hydraulic device case 9 is integrally attached is covered with a resin oil tank cover 21 shown in FIG. The upper side of the fuel tank 8 to which the electrical case 19 is integrally attached is covered with a resin fuel tank cover 22 shown in FIG.

  As shown in FIG. 4, the oil tank cover 21 covers the side surface 21 </ b> S covering the upper end portion from the front end portion of the outer surface 7 </ b> S of the oil tank 7, the front surface 21 </ b> F covering the front surface 7 </ b> F of the oil tank 7, and the upper surface 7 </ b> U of the oil tank 7. The upper surface 21U and the back surface 21R that covers the upper end portion of the back surface 9R of the hydraulic device case 9 are integrally formed.

  Further, as shown in FIG. 7, the fuel tank cover 22 includes a side surface 22S that covers the upper end portion from the front end portion of the outer surface 8S of the fuel tank 8, a front surface 22F that covers the front surface 8F of the fuel tank 8, and an upper surface 8U of the fuel tank 8. The upper surface 22U to cover and the back surface 22R which covers the upper end part of the back surface 19R of the electrical equipment case 19 are integrally formed. The portions of the peripheral surfaces of the tanks 7 and 8 that are not covered by the cover 21 or 22 are bare.

  For this reason, the oil tank cover 21 and the fuel tank cover 22 do not disturb the cooling effect of the oil and fuel in the oil tank 7 and the fuel tank 8. In addition, since the upper side of the oil tank 7 and the fuel tank 8 is covered with the oil tank cover 21 or the fuel tank cover 22, the oil tank 7 and the fuel tank 8 are not exposed from the upper surface. The upper surface 21U or 22U of the cover 22 is bare.

  The upper surface 21U of the resin oil tank cover 21 having a smooth finish surface and the upper surface 21U of the fuel tank cover 22 prevent contact with the upper surfaces of the oil tank 7 and the fuel tank 8 in the assembled work vehicle. In addition, the aesthetics of the design is not impaired.

  Further, as shown in FIGS. 9 and 10, the edge of the oil tank cover 21 or the fuel tank cover 22 is curved inwardly, that is, toward the oil tank 7 or the fuel tank 8 over the entire circumference. As a result, the sense of unity of the oil tank 7 and the oil tank cover 21 and the fuel tank 8 and the fuel tank cover 22 can be strengthened, and the design aesthetics can be improved.

  On the other hand, the oil tank cover 21 and the fuel tank cover 22 prevent contact with the upper surface 7U of the oil tank 7 and the upper surface 8U side of the fuel tank 8, so that the upper surface 7U of the oil tank 7 and the upper surface 8U side of the fuel tank 8 are Finish molding such as deburring, bead removal, and finishing with a grinder is not necessary. Thereby, manufacture of the oil tank 7 and the fuel tank 8 can be easily performed at low cost. Since the oil tank cover 21 and the fuel tank cover 22 are molded products made of resin, it is not necessary to finish the upper surfaces 21U and 22U, and the cost for finishing can be reduced as described above.

  Stays 23 are provided on the front surfaces 7F and 8F of the tanks 7 and 8 so as to protrude forward. Stays 24 that protrude upward are provided on the upper surfaces 7U and 8U of the tanks 7 and 8, respectively. Stays 26 that project rearward are provided on the rear surfaces 9 </ b> R and 19 </ b> R of the hydraulic device case 9 and the electrical case 19.

  The oil tank cover 21 has a rear mounting portion 21a on the rear surface 21R, a front mounting portion 21b on the front surface 21F, and an upper mounting portion 21c on the upper surface 21U. The stay 23 of the oil tank 7 is attached to the front attachment portion 21b, the stay 24 of the oil tank 7 is attached to the upper attachment portion 21c, and the stay 26 of the hydraulic device case 9 is attached to the rear attachment portion 21a. And it is attached to the hydraulic equipment case 9 integrally.

  The fuel tank cover 22 has a rear mounting portion 22a on the rear surface 22R, a front mounting portion 22b on the front surface 22F, and an upper mounting portion 22c on the upper surface 22U. The stay 23 of the fuel tank 8 is attached to the front attachment portion 22b, the stay 24 of the fuel tank 8 is attached to the upper attachment portion 21c, and the stay 26 of the electrical case 19 is attached to the rear attachment portion 21a. The electric case 19 is integrally attached.

  Since the oil tank 7 and the oil tank cover 21 and the fuel tank 8 and the fuel tank cover 22 are integrated as described above, the cover is attached to the cabin side and the tank is attached to the body frame side, for example. And the tanks do not move separately, and the inconvenience that the covers 21 and 22 and the tanks 7 and 8 come into contact with each other due to vibration of the airframe or the like is prevented.

  Further, since the oil tank cover 21 is fixedly attached to the oil tank 7 and the fuel tank cover 22 is fixedly attached to the fuel tank 8, the gap between the covers 21 and 22 and the tanks 7 and 8 can be accurately managed. A gap between the covers 21 and 22 and the tanks 7 and 8 can be reduced, and variations in the gap can be reduced.

  The above-described refueling portion 14 is disposed on the front side from the center in the front-rear direction on the upper surface 8U of the fuel tank 8. The oil supply section 14 has a cylindrical shape, and a fuel cap 27 is attached to the end as shown in FIG. The fuel can be removed by removing the fuel cap 27.

  On the other hand, the fuel tank cover 22 is provided with a recessed portion 28 that is open to the outside at a portion facing the fuel supply portion 14 of the fuel tank 8. The oil filler 14 protrudes from the bottom surface 28 a of the recess 28. As shown in FIG. 11, a rubber cap 29 is attached to the bottom surface 28 a of the hollow portion 28, and the oil supply portion 14 is inserted into the rubber cap 29 and protrudes. The fuel cap 27 is located inside the recess 28 outside the rubber cap 29.

  The bottom surface 28a of the recess 28 is an inclined surface that descends toward the outside at an inclination angle α. For this reason, mud, dust and the like entering the hollow portion 28 can be easily removed from the bottom surface (inclined surface) 28a to the outside of the traveling machine body 1, and the maintainability is good. Further, since the outer peripheral side of the fuel filler 14 is sealed by the rubber cap 29, mud, dust, fuel, etc. that enter the recess 28 are prevented from falling between the fuel cover 22 and the fuel tank 8. Moreover, the fuel dripping during refueling can be easily wiped off.

  As shown in FIG. 2, steps 31 and 32 for getting on and off the cabin are arranged in front of both tanks 7 and 8. As described above, since the fuel supply portion 14 of the fuel tank 8 is located on the front side of the fuel tank 8, the fuel cap 27 is located close to the step 32. This makes it possible to refuel on the step, enable stable refueling work, improve the work efficiency of the refueling, prevent fuel spills during refueling, etc. A stand or the like becomes unnecessary.

  On the other hand, as shown in FIG. 12, the cabin 4 is provided with a bar 33 used as a handle when getting on and off. The bar 33 is welded to the pipe 4 a of the main body of the cabin 4. As shown in FIGS. 12 and 13, a stay 34 is fixed to the upper end portion of the bar 33. As shown in FIG. 14, a bracket 36 for assembling a combination lamp 37 including a turn signal and a vehicle width lamp is attached to the stay 34 so as to be detachable. The bracket 36 and the stay 34 are fixed by bolts 38.

  The bracket 36 and the stay 34 have a U-shaped cross section, and a harness is disposed inside the bracket 36. This protects the harness. The mounting structure of the bracket 36 and the stay 34 improves the visual unity of the bracket 36 and the stay 34 and does not impair the design aesthetics.

  Further, since the bar 33 is welded to the pipe 4a and has a high strength, the strength of the stay 34 can be increased. By increasing the strength of the stay 34, the length of the bracket 36 can be increased. Due to the stable fixing of the bracket 36, vibration of the bracket 36 and the like are prevented. In addition, the same cabin can be used by changing the length of the bracket 36 for models of different body sizes.

It is a side view of a combine. It is a top view of a cabin part. (A) is a plan view of the oil tank, (b) is a front view of the oil tank, (c) is a side view of the oil tank, and (d) is a rear view of the oil tank. It is a side view which shows the attachment state of an oil tank. (A) is a plan view of the hydraulic device case, (b) is an outer side view of the hydraulic device case, (c) is a rear view of the hydraulic device case, and (d) is an inner side view of the hydraulic device case. (A) is a plan view of the fuel tank, (b) is a rear view of the fuel tank, (c) is a side view of the fuel tank, and (d) is a front view of the fuel tank. It is a side view which shows the attachment state of a fuel tank. (A) is a top view of an electrical equipment case, (b) is an inner side view of the electrical equipment case, (c) is a rear view of the electrical equipment case, and (d) is a front view of the electrical equipment case. (A) is a rear view of the oil tank cover, (b) is a side view of the oil tank cover, and (c) is a bottom view of the oil tank cover. (A) is a side view of the fuel tank cover, (b) is a rear view of the fuel tank cover, and (c) is a bottom view of the fuel tank cover. It is a side view of a supply part. It is a side view of the bar part of a cabin. It is a top view of a combination lamp part. It is a perspective view of a combination lamp part.

1 traveling machine body 4 cabin 7 oil tank (tank)
7S outer surface 7U oil tank upper surface 8 fuel tank (tank)
8S Outer surface 8U Upper surface of fuel tank 21 Oil tank cover (cover)
21F front
21S side
21U Upper surface 22 Fuel tank cover (cover)
22F front
22S side
22U top surface
23 Stay
24 stay
26 Stay 28 Indentation 28a Bottom of Indentation

Claims (2)

In a work vehicle in which tanks (7) and (8) for storing oil or fuel are arranged on one or both sides of a cabin (4) mounted on a traveling machine body (1), a plurality of tanks (7) and (8) are provided. Made of a metal plate and covering the upper surfaces (7U) and (8U) of the tanks (7) and (8) with a part of the outer peripheral surface of the tanks (7) and (8) exposed. When the covers (21) and (22) are provided, the covers (21) and (22) are at least the upper end portions from the front end portions of the outer surfaces (7S) and (8S) of the tanks (7) and (8). Of the side surfaces (21S) and (22S) covering the front surfaces (7F) and (8F) of the tanks (7) and (8) and the front surfaces (21F) and (22F) of the tanks (7) and (8). top (7U), (8U) covering the upper surface (21U), (22U) and a tank (7), ( Outer surface of) (7S) (integrally formed as 8S) part of is uncovering, the tank (7), so that a gap is formed between the (8), the cover (21), ( 22) is fixedly attached to the tanks (7), (8) via the stays (23), (24), (26), and the side surfaces (21S), ( 22) of the covers (21), (22) 22S) The tank cover structure in the work vehicle in which the edge of the tank is curved toward the tanks (7) and (8).   The cover (21), (22) is provided with a recess (28) for oil or fuel inlet, the outside of the recess (28) is opened, and the bottom surface (28a) of the recess (28) is outside. The tank cover structure in the work vehicle according to claim 1, wherein the tank has an inclined surface that descends toward the direction.

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