JP2011207243A - Working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a step hood from being damaged at the fueling of a fueling stand by arranging the fueling stand in the vicinity of the step hood with simple design when arranging the fueling stand above the step hood of the working vehicle.SOLUTION: The working vehicle includes right and left step floors on the right and left sides of a floor. A step hood is erected from the front end of the step floor. A mounting frame is erected from a traveling vehicle body in the vicinity of the front side of the step hood. The base of the fueling stand having a width smaller than a lateral width of the step hood is rotatably supported by a lateral shaft positioned above the step hood on the mounting frame. The state of the fueling stand can be changed into a horizontally rotation state that the front end of the fueling stand projects forward above the step hood, or into a housing rotation state that the front end of the fueling stand is rotated downward so as to be positioned along the front face of the step hood.

Description

  The present invention relates to a work vehicle. In particular, the present invention relates to a fuel refueling auxiliary device that supplies fuel to a work vehicle.

  In a fuel refueling assist device for a work vehicle, a step floor is provided on both the left and right sides of a floor equipped with a cockpit and a steering handle, and a fuel storage container auxiliary stand is provided above the front side of the step floor. It is known that the auxiliary base is folded and accommodated within the width of the step floor in plan view, or is made to protrude forward outside the width (Patent Document 1).

JP 2006-123646 A

  The invention of the background art has a configuration in which the fuel storage container auxiliary base is folded and protruded, and therefore, the storage fuel storage container auxiliary base folded upward within the width of the step floor is exposed, so that the crop can be seen during the work. There is a problem that the fuel storage container auxiliary base is caught, or the design of the step floor portion is not neatly organized.

  Accordingly, the present invention is intended to provide a fuel storage container auxiliary base in which such problems are eliminated.

  According to the first aspect of the present invention, a bonnet (2), a steering handle (11), and a driver's seat (6) are provided from the front side to the rear side of the traveling vehicle body, and provided below the steering handle (11) and the driver's seat (6). A work vehicle provided with left and right step floors (16, 16) on both left and right sides of the floor (20), wherein a step hood (17) is erected from the front end of the step floor (16), A mounting frame (24) is erected from the traveling vehicle body in the vicinity of the front side of the step hood (17), and a left and right axis (26a) positioned above the step hood (17) in the mounting frame (24). The base of the fuel filling table (26) narrower than the left and right width of the step hood (17) is pivotally supported, and the fuel filling table (26) is positioned at the front end side above the step hood (17). A working vehicle characterized in that it can be changed to a horizontally rotating state projecting forward, or a retracted rotating state in which the front end side rotates downward and follows the front side surface of the step hood (17). .

  The invention of claim 2 is a storage state in which a bent piece (17a) is provided from the left and right outer end portions of the step hood (17) toward the front side and is rotated downward along the front side surface of the step hood (17). The work vehicle according to claim 1, wherein the left and right outer portions of the fuel supply base (26) are covered with bent pieces (17a).

  According to the first aspect of the present invention, the fuel supply stand (26) is held at a position higher than the step hood (17) during fuel supply with the fuel supply stand (26) projecting and rotating forward. Even if the polytank is placed on the fuel supply stand (26), the step hood (17) can be kept clean without damaging the step hood (17). Further, in the storage state rotated downward of the fuel supply base (22), the entire fuel supply base (22) can be stored close to the front side surface of the step hood (17). It can be refreshed.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the bent pieces (17a) directed from the left and right outer sides of the step hood (17) to the front side are provided. Cover the left and right outer sides of the fuel tank (26) in the stored state with bent pieces (17a) while increasing the strength, and work smoothly without catching crops on the fuel tank (26) during work. Can be performed.

It is a side view of the whole tractor. It is a top view of the whole tractor. It is a front view of a tractor. It is the side view and front view which abbreviate | omitted a part of tractor. It is the perspective view which abbreviate | omitted a part of tractor. It is a perspective view of a step floor and a fuel filling stand. It is a perspective view of a step floor and a fuel filling stand. It is a perspective view of a fuel tank part. It is the front view and side view of a fuel filling stand. It is a side view of a bonnet and an engine part. It is a side view of a bonnet and an engine part. It is the perspective view and front view of a bonnet. It is a front view of a bonnet. It is the side view and front view of a bonnet. It is a perspective view of a bonnet. It is a perspective view of a bonnet. It is a perspective view of a bonnet. It is a perspective view of a bonnet. It is a perspective view of a bonnet.

Hereinafter, an embodiment in which the present invention is applied to an agricultural tractor will be described with reference to the drawings. First, the overall configuration of a tractor that implements the present invention will be described with reference to FIGS. 1 to 3.
The tractor has an engine (not shown) mounted on the front side of the traveling vehicle body 1, the engine is covered with a bonnet 2, and the rotational power of the engine is shifted by the main transmission and the sub-transmission in the transmission case 3, and the left and right front wheels 4 , 4 and left and right rear wheels 5, 5.

  In addition, a driver's seat 6 is provided on the upper rear side of the mission case 3, and left and right fenders 7 and 7 are provided on the left and right sides thereof. A front loader (not shown) can be mounted on the front side of the traveling vehicle body 1 and a backhoe (not shown) can be mounted on the rear side. Also, a cylinder case (not shown) is provided on the rear side of the traveling vehicle body 1, lift arms 9 and 9 are provided on the rear side of the cylinder case so as to be rotatable up and down, and are connected by a three-point link mechanism (not shown). A rotary tiller (not shown) is configured to move up and down.

Further, a handle column 10 is erected on the rear side of the engine, and a steering handle 11 is provided on an upper portion thereof. A rear safety frame 12 is erected at the rear of the traveling vehicle body 1.
Further, as shown in FIGS. 5 to 8, the mounting frame 19 is attached to the front bracket 18 a and the rear bracket 18 b attached to the left and right side portions of the mission case 3. The floor 20 is attached to the lower front frame 19a of the attachment frame 19, the driver's seat 6 is attached to the upper part of the higher rear frame 19b, and the safety frame 12 is attached to the rear rear frame 19c having a higher rear end.

  In addition, left and right step floors 16 and 16 are attached to the left and right side portions of the front frame 19a of the mounting frame 19, and the rear end portions of the left and right step floors 16 and 16 are connected to the front lower end portions of the fenders 7 and 7, respectively. The front end portions 16 and 16 extend forward and are connected to the front bracket 18a by bolts and nuts. Step hoods 17 and 17 are raised from the front side portions of the left and right step floors 16 and 16.

  The left and right dashboard frames 21, 21 are raised from the front end of the front frame 19 a of the mounting frame 19, and the dashboard covers 22, 22 are attached to the left and right dashboard frames 21, 21.

  Further, as shown in FIG. 8, the upper end portions of the left and right dashboard frames 21, 21 are connected and reinforced by a connecting frame 23 in the left-right direction. A tank enclosure frame 32 is extended rearward from the upper part of the left and right dashboard frames 21 and 21 to surround the rear side and both left and right sides of the fuel tank 31, and the bracket 10a of the handle column 10 is attached to the rear side of the tank enclosure frame 32. The left and right dashboard frames 21 and 21 are reinforced to protect the fuel tank 31.

  A fuel supply base 26 is provided above the step hood 17. The front end of the step hood 17 is extended and placed on the upper surface of the front bracket 18a, and the mounting plate 21a at the lower end of the fuel supply base mounting frame 24 is overlapped and secured with bolts and nuts. A support shaft 26a is provided at the upper end of the fuel supply base mounting frame 24 and above the left step hood 17 so as to protrude leftward, and the base of the fuel supply base 26 is provided on the support shaft 26a. It is supported so that it can rotate up and down.

  Then, the fuel supply base 26 is rotated downward as shown in FIGS. 7 and 9B, and forwardly protruded as shown in FIGS. 5 and 9C. It is comprised so that it can latch with the latching device 27 in the use state of a horizontal attitude | position.

  Further, bent pieces 17a are provided from the left and right side portions of the step hood 17 toward the front side to increase the strength, and as shown in FIG. 7, the side of the fuel supply base 26 in the storage state rotated downward is bent. It is made to coat | cover with 17a.

  According to the above configuration, the left side of the stored fuel supply base 26 is covered with the bent pieces 17a from the left and right sides of the step hood 17 toward the front side, so that the fuel supply base 26 is stored without obstruction. Can do.

  In addition, as shown in FIG. 6, the fuel supply stand 26 can be held at a position higher than the step hood 17 during refueling, and even if a poly tank is placed on the fuel supply stand 26, the step hood 17 is damaged. Without this, the step hood 17 can be kept clean.

In addition, the left step hood 17 and the fuel supply base mounting frame 24 are attached to the front bracket 18a by fastening them with bolts and nuts to simplify the configuration.
Further, since the dashboard frame 21 and the fuel supply base frame 24 are connected by the connection frame 28, the support structure can be simplified while strengthening the dashboard cover 22 and the fuel supply base 26.

  Further, as shown in FIG. 8, tank brackets 31a and 31a provided on the left and right sides of the upper portion of the fuel tank 31 are connected by a connecting frame 23, and the tank brackets 31a and 31a are connected to upper end portions of the left and right dashboard frames 21 and 21, respectively. Connected with bolts and nuts. According to the said structure, the attachment structure of the fuel tank 31 can be simplified and the left-right dashboard frames 21 and 21 can be made strong.

Next, the attachment structure of the bonnet 2 is demonstrated based on FIG. 10 thru | or FIG.
As shown in FIG. 12, the bonnet 2 includes a front grill 2a and an upper cover 2b. Left and right side covers 34, 34 raised from the traveling vehicle body 1 are disposed close to the left and right sides of the closed upper cover 2 b to cover the engine E and auxiliary equipment. Left and right hood frames 35, 35 are raised from the traveling vehicle body 1 at the rear of the engine E, and the rear end of the upper cover 2 b is pivotally supported by the left and right pins 2 c above the left and right hood frames 35, 35. Is configured to be openable and closable.

  A cooling fan 41 is provided on the front side of the engine E, a radiator 42 is provided in front of the cooling fan 41, and the radiator 42 is supported by left and right radiator brackets 43, 43 raised from the traveling vehicle body 1. A muffler 44 is provided on the upper left side of the engine E to introduce the exhaust of the engine, and the exhaust is discharged forward through the exhaust pipe 45 to the right side.

  Further, as shown in FIG. 12, the locking devices 37a, 37a, 37b of the side covers 34, 34 are provided at the upper front and rear two places and the lower front and rear two places. Mounting locations on the traveling vehicle body 1 side are provided at two locations, upper and lower, of the radiator bracket 43 and two locations, upper and lower, of the left and right hood frames 35, 35.

  Further, as shown in FIG. 11, the locking devices 37a, 37a, 37b, 37b of the radiator bracket 43 and the left and right hood frames 35, 35 are welded with rivets 47, and plates 48, 48 with holes are formed in the rivets 47. It is configured to be fitted and welded at a predetermined interval, and to insert a chromet 49 therebetween.

  As shown in FIG. 13, hooks 50 are attached to the left and right side covers 34, and hook-like grooves 50 a that are inclined downward are formed on the hook 50 toward the inside. Thus, the hook-like groove 50a of the hook 50 can be inserted and locked between the plates 48, 48 of the rivet 47 so as to drop from the upper left and right sides. According to the said structure, the latching structure of the right side covers 34 and 34 can be simplified, and the fall prevention effect can be heightened.

  Moreover, you may comprise as FIG. When the hooks 50,... Are formed on the left and right side covers 34 on the front upper and lower sides and the rear upper and lower sides, the hook-like grooves 50a, 50a of the upper front and rear hooks 50,. The hook 50 on the lower side is formed with a bowl-shaped groove 50a that is inclined downward, for example, about 15 degrees in a side view.

  According to the above configuration, the upper hooks 50 are inserted and locked to the rivets 47 with the lower portions of the left and right side covers 34, 34 inclined to the left and right, and then the lower portions of the side covers 34 are moved downward and inwardly around the rivets 47. By turning to the right, the hook-like groove 50a of the lower hook 50 is fitted and locked to the lower rivet 47, and the attachment is completed, and the effect of preventing the left and right side covers 34, 34 from falling off can be enhanced.

  Moreover, you may comprise as FIG. When the hooks 50,... Are formed on the left and right side covers 34, 34, the hooks 50 are formed by two plate bodies 50b, 50b that are spaced apart in the front-rear direction. When the side cover 34 is made of synthetic resin and the hooks 50,... Are integrally formed, if the hook 50 is not formed of two plates, but has an integrated configuration with a predetermined thickness, the outside of the side cover 34 is removed. When the resin is molded on the side surface, deformation occurs, resulting in a problem that the finish is not clean. However, with this configuration, it is possible to ensure the locking force while preventing deformation.

  Further, as shown in FIG. 15, when the hooks 50,... Are constituted by two plate bodies 50 b, 50 b with a predetermined interval in the front-rear direction, the upper and lower portions of the bowl-shaped groove 50 a are connected by ribs 51, 51. , The strength of the hooks 50 can be increased.

  Next, another embodiment of the left and right side covers 34, 34 will be described with reference to FIG. The left and right side covers 34, 34 are formed of synthetic resin, and the side exhaust net 36 is integrally formed. According to this configuration, the number of parts can be reduced and the number of assembling steps can be reduced as compared with the case where the side cover 34 is made of sheet metal and attached to the engine side.

Next, FIG. 17 will be described.
A rib 38 in the vertical direction and a rib 38 in the front-rear direction are projected from the inner side surfaces of the left and right side covers 34, 34, and a horizontal heat shield plate 39a in the front-rear direction is formed from the ribs 38,. A heat shield plate 39b that extends upward from the front end of the plate 39a and is inclined upward is provided. According to the said structure, compared with what attaches a heat shield to the engine side, a number of parts can be reduced and an assembly man-hour can be reduced.

Further, as shown in FIG. 18, ribs 38 may be provided at lower portions of the inner side surfaces of the left and right side covers 34, and a horizontal heat shield plate 39 a long in the front-rear direction may be formed from the ribs 38.
Next, FIG. 19 will be described.

  A first heat shield plate 39c in the vertical direction is formed on the rear inner side surfaces of the left and right side covers 34, 34 so as to be positioned at the rearmost end portion, and a second heat shield plate 39d is formed with a predetermined interval in front of the first heat shield plate 39c. . In the case of a large tractor that is long in the front-rear direction, the left and right side covers 34, 34 with the first heat shield plate 39a and the second heat shield plate 39b are used as they are. Further, in the case of a small tractor that is short in the front-rear direction, the second heat shield plate 39b is left, the left and right side covers 34, 34 and the first heat shield plate 39a behind it are cut out, and the left and right side covers 34, 34 are removed. Shorten and install.

  According to the above configuration, the large and small left and right side covers 34, 34 can be formed from a single mold material, and the cost can be reduced.

2 Bonnet 3 Mission case 6 Driver's seat 7 Fender 11 Steering handle 16 Step floor 17 Step hood 17a Bending piece 20 Floor 24 Mounting frame 31 Fuel tank

Claims (2)

  A bonnet (2), a steering handle (11), and a driver seat (6) are provided from the front side to the rear side of the traveling vehicle body, and the floor (20) provided below the steering handle (11) and the driver seat (6). A work vehicle having left and right step floors (16, 16) provided on both left and right sides thereof, wherein a step hood (17) is erected from a front end portion of the step floor (16), and the step hood (17) A mounting frame (24) is erected from the traveling vehicle body in the vicinity of the front side, and the step hood (17) is mounted on the mounting frame (24) by the left and right shaft (26a) positioned above the step hood (17). The base of the fuel filling table (26) narrower than the left and right width is rotatably supported, and the tip of the fuel filling table (26) protrudes forward at the upper portion of the step hood (17). Horizontal rotation state or work vehicle, wherein a front end side is capable of changing the housing turning state along the front side of the turning stepped hood (17) downward.   A refueling stand (26) in a stowed state in which bent pieces (17a) are provided from the left and right outer end portions of the step hood (17) toward the front side and rotated downward along the front side surface of the step hood (17). The work vehicle according to claim 1, wherein the left and right outer portions are covered with bent pieces (17 a).

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