Work vehicles

Abstract

To provide a work vehicle in which a fuel filter is mounted on a front surface of a getting-on / out step provided on an outside end of a floor, and in which the fuel filter is mounted on a position where a vehicle width does not become wider because, in the case where the work vehicle needs to travel with a lateral side being close to an obstacle such as a wall during work in a house and the like, the fuel filter protrudes laterally even when the getting-on / out step is removed and, therefore, there was a case where work by travelling close to the obstacle such as a wall was difficult.SOLUTION: In a work vehicle which includes a driver's seat and is provided with a floor 6 for constituting a floor surface of a driving part on which a driver moves, a mount bracket 5 is provided for supporting the floor 6 mounted on a mission case 4 below the floor 6, a fuel filter 11 is mounted on the mount bracket 5, the fuel filter 11 is provided at a lower position of the floor 6, and an outside end of the fuel filter 11 is arranged further inside than an outside end of the floor 6.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a work vehicle, such as a tractor, equipped with a fuel filter. [Background technology]

[0002] A known work vehicle has a configuration in which a boarding / alighting step is provided at the outer edge of the floor that forms the floor surface of the driver's section, which is equipped with a driver's seat where the driver sits, for the driver to place their feet when getting on and off, and a fuel filter that removes impurities from the fuel is attached to the front of the boarding / alighting step with the forward direction of the vehicle as the front (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-031842 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when working inside a greenhouse and needing to drive the vehicle close to obstacles such as walls on the side, even if the boarding and alighting step is removed, the fuel filter protrudes to the side, making it difficult to work close to obstacles such as walls.

[0005] An object of the present invention is to provide a work vehicle in which a fuel filter is attached in a position that does not increase the width of the vehicle. [Means for solving the problem]

[0006] The first invention provides a work vehicle having a floor (6) that is equipped with a driver's seat (8) and forms the floor surface of a driver's section where a driver sits, wherein a mount bracket (5) is provided to support the floor (6) attached to a transmission case (4) below the floor (6), a fuel filter (11) that removes impurities from fuel supplied to an engine is attached to the mount bracket (5), the fuel filter (11) is provided at a position below the floor (6), and an outer end of the fuel filter (11) is located inside the outer end of the floor (6); A pump operating part (11a) for manually supplying fuel to the engine is provided on the upper surface of the fuel filter (11), and the pump operating part (11a) protrudes forward from the front end of the floor (6) in a plan view. a cover (20) for covering the fuel filter (11) from above, provided near the pump operating section (11a); The cover (20) is pivoted at its rear by a pivot (21) so as to be vertically rotatable, and the work vehicle is characterized in that the pump operating section (11a) is pushed by pressing down the front part of the cover (20). First invention related to the present inventionis a work vehicle having a floor 6 equipped with a driver's seat 8 and constituting the floor surface of the driver's section where the driver sits, a mount bracket 5 is provided to support the floor 6 attached to a transmission case 4 below the floor 6, a fuel filter 11 is attached to the mount bracket 5 to remove impurities from the fuel supplied to the engine, the fuel filter 11 is provided at a position below the floor 6, and the outer end of the fuel filter 11 is positioned inside the outer end of the floor 6.

[0007] First invention related to the present invention According to the invention, a mount bracket 5 is provided to support the floor 6, which is attached to the transmission case 4 below the floor 6, and a fuel filter 11 is attached to the mount bracket 5 to remove impurities from the fuel supplied to the engine. The fuel filter 11 is provided at a position below the floor 6, and the outer end of the fuel filter 11 is positioned more inward than the outer end of the floor 6, so that the fuel filter 11 can be attached at a position that does not increase the width of the vehicle beyond the outer end of the floor 6.

[0008] Second invention related to the present invention The pump operating part 11a for manually supplying fuel to the engine is provided on the upper surface of the fuel filter 11, and the pump operating part 11a protrudes forward from the front end of the floor 6 in a plan view. First invention related to the present invention It is a work vehicle.

[0009] Second invention related to the present invention According to First invention related to the present invention In addition to the above-mentioned effects, a pump operating section 11a for manually supplying fuel to the engine is provided on the top surface of the fuel filter 11, and the pump operating section 11a protrudes forward from the front end of the floor 6 in a plan view, so that the pump can be easily operated to prevent air entrainment during initial operation or after engine maintenance work.

[0010] The third invention related to the present invention A cover 20 that covers the upper part of the fuel filter 11 is provided near the pump operating part 11a, and the cover 20 is provided so as to be movable up and down, and the pump operating part 11a is pushed by a pushing operation. The first or second invention related to the present invention It is a work vehicle.

[0011] The third invention related to the present invention According to The first or second invention related to the present invention In addition to the above-mentioned effect, the pump operating portion 11 a can be operated while the cover 20 is still covering the top of the fuel filter 11 . [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a plan view of a main part of a tractor according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view of the fuel filter and its surroundings of the tractor according to the embodiment of the present invention. [Figure 3] 1 is a side view of the fuel filter and its surroundings of a tractor according to an embodiment of the present invention. FIG. [Figure 4] FIG. 2 is an enlarged perspective view of the fuel filter and its surroundings of the tractor according to the embodiment of the present invention. [Figure 5] FIG. 2 is an enlarged perspective view of the fuel filter and its surroundings of the tractor according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] As one embodiment of the present invention, an agricultural tractor 1, which is a type of work vehicle, will be described. In the following, front, rear, left and right are referred to based on the forward direction of the machine body.

[0014] As shown in Figure 1, the tractor 1 is equipped with left and right front wheels and left and right rear wheels 2,2 on the underside of the body, an engine is mounted at the front of the body, a floor 6 is supported on mounting brackets 5,5 provided on both outer sides of a transmission case 4 connected to the rear of the engine via a clutch case and projecting outward to the left and right of the body, a safety frame (ROPS) 7 is provided on the rear of the body, and a link mechanism and PTO shaft for connecting various work devices are provided at the rear end of the body.

[0015] Generally, boarding and alighting steps that are one step lower than the floor 6 are provided at the left and right outer ends of the floor 6, but in this embodiment, as a tractor used for work inside a greenhouse, the boarding and alighting steps that protrude outside the body of the vehicle are removed so as not to interfere with walls inside the greenhouse, etc.

[0016] The floor 6 is located below and in front of the driver's seat 8, which is mounted on the machine body in front of the safety frame (ROPS) 7 between the left and right rear wheel covers 2a, 2a of the left and right rear wheels 2, 2, and serves as a footrest (floor surface) for the operator seated in the driver's seat 8, and also as a step for boarding the machine body from both the left and right sides.

[0017] Also, on the front part of the floor 6, left and right brake pedals 9a, 9a, a main clutch pedal 9b, an operation panel, a steering handle, etc. are provided.

[0018] A fuel tank 10 is provided at a lower position on the left side of the floor 6, and a fuel filter 11 that removes impurities from the fuel supplied to the engine is provided at a lower position on the right side of the floor 6, and the fuel in the fuel tank 10 flows into the fuel filter 11 through a first fuel pipe 12a and flows out from the fuel filter 11 to the engine through a second fuel pipe 12b.

[0019] Here, the support structure of the fuel filter 11 will be described in detail with reference to FIGS.

[0020] The fuel filter 11 is fixed to a fuel filter fixing bracket 13 with bolts and nuts 14 .

[0021] The fuel filter fixing bracket 13 is fixed with bolts and nuts 17 to a fuel filter support bracket 16 whose upper part is fixed with bolts and nuts 15 to the right end of a mount bracket 5 which is provided on the right outer part of the transmission case 4 supporting the right side of the floor 6 and protrudes outward to the right of the aircraft.

[0022] The fuel filter fixing bracket 13 is composed of a rear wall 13a, an inner wall 13b, and a bottom surface 13c.

[0023] The inner wall 13b is fixed to a fuel filter support bracket 16 with bolts and nuts 17, and the inner wall 13b and the fuel filter support bracket 16 are provided with holes 13d and 16a through which the first fuel pipe 12a and the second fuel pipe 12b are inserted, respectively.

[0024] A side cover 18 that covers the right outer surface and front surface of the fuel filter fixing bracket 13 is detachably attached with bolts and nuts 19.

[0025] Therefore, maintenance of the fuel filter 11 can be easily performed by removing the bolts and nuts 19 and removing the side cover 18 to expose the right outer side and front of the fuel filter 11.

[0026] A pump operating section 11a is provided on the upper portion (top surface) of the fuel filter 11 to manually supply fuel to the engine and bleed air from the fuel supply path to the engine.

[0027] An upper cover 20 that covers the upper surface of the fuel filter fixing bracket 13 is pivotally supported at its rear by a pivot 21 provided on the fuel filter fixing bracket 13 so as to be vertically rotatable.

[0028] Upper cover 20 has left and right pieces 20b facing downward on both the left and right sides of upper surface 20a, and the rear parts of left and right pieces 20b are pivotally supported on pivots 21. In addition, the rear part of upper cover 20 is bent downward to form rear pieces 20c, making it L-shaped, so that upper cover 20 can rotate only downward.

[0029] Therefore, by pressing the upper cover 20 downward, the operator can press the pump operating unit 11a through the upper cover 20 to manually supply fuel to the engine and bleed air from the fuel supply path to the engine.

[0030] The fuel filter 11 and the fuel filter fixing bracket 13 are positioned below the floor 6, which is supported by a mount bracket 5 that is provided on the right outer part of the transmission case 4 and protrudes outward to the right of the aircraft, and are located inside the aircraft below the right outer end of the floor 6.

[0031] Therefore, the fuel filter 11 and the fuel filter fixing bracket 13 can be attached at a position that does not increase the width of the vehicle from the right outer edge of the floor 6, and work can be performed while driving close to obstacles such as walls.

[0032] Furthermore, the pump operating portion 11a of the fuel filter 11 is disposed at a position that protrudes forward from the front end of the floor 6.

[0033] Therefore, pump operation to prevent air entrainment during initial operation or after engine maintenance work can be easily performed.

[0034] The fuel filter 11 is attached to the fuel filter fixing bracket 13 at an angle so that the upper part is positioned more forward, and the pump operating part 11a of the fuel filter 11 is positioned so that it does not protrude forward from the front end of the floor 6, but the pump operating part 11a may be configured to face forward of the floor 6 so that it can be operated from the front of the floor 6. [Explanation of symbols]

[0035] 4. Transmission case 5 Mounting bracket 6 floors 8 Driver's seat 11 Fuel filter 11a Pump operation section 20 Cover (Upper cover) 20a top side

Claims

[Claim 1] In a work vehicle having a floor (6) that is equipped with a driver's seat (8) and that forms the floor surface of the driver's section where the driver sits, a mount bracket (5) is provided to support the floor (6) attached to a transmission case (4) below the floor (6), a fuel filter (11) that removes impurities from fuel supplied to the engine is attached to the mount bracket (5), the fuel filter (11) is provided at a position below the floor (6), and the outer end of the fuel filter (11) is positioned inside the outer end of the floor (6), A pump operating part (11a) for manually supplying fuel to the engine is provided on the upper surface of the fuel filter (11), and the pump operating part (11a) protrudes forward from the front end of the floor (6) in a plan view. A cover (20) for covering the fuel filter (11) is provided near the pump operating section (11a), The cover (20) is pivotally supported at its rear by a pivot (21) so as to be vertically rotatable, and the pump operating section (11a) is pushed down by pressing down the front of the cover (20).

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