JP2008149767A - Tractor - Google Patents

Abstract

A container auxiliary stand that has few restrictions when placed on a tractor and has a good appearance is realized.
A fuel tank 4 is provided in the rear part of a bonnet part B, and fuel to be supplied to the fuel tank 4 is inserted in a tractor provided with a supply port 16a for supplying fuel to the fuel tank 4 in the bonnet part B. A container auxiliary base 30 for placing the container T is provided, and the container auxiliary base 30 is configured to be freely changeable between a mounting attitude for mounting the container T and a storage attitude along the side surface of the bonnet part B. The container auxiliary table 30 is configured so that the container mounting surface 30a of the container auxiliary table 30 faces the inward side of the machine body.
[Selection] Figure 6

Description

  The present invention relates to a tractor including a container auxiliary base on which a container containing fuel to be replenished to a fuel tank is placed.

  As a conventional technique, for example, as disclosed in Patent Document 1, an auxiliary stand (20 in FIG. 4 of Patent Document 1) is used in a posture for placing a container (FIG. 4 (A) in Patent Document 1). ) And the center of the upper end (Y in FIG. 4 of Patent Document 1), and the placement surface (20a in FIG. 4 (A) of Patent Document 1) faces outward from the body. 2. Description of the Related Art A tractor configured to be freely changeable in a non-use posture (the posture shown in FIG. 4 (B) of Patent Document 1) is known.

Japanese Patent Laying-Open No. 2005-335650 (see FIGS. 2, 3 and 4)

  However, if the posture can be changed as described above, the position of the lower end of the auxiliary base moves up and down as the posture is changed from the use posture or the non-use posture to the non-use posture or the use posture. For this reason, it is necessary to configure and arrange the auxiliary base so as to avoid equipment below the auxiliary base at the position where the auxiliary base moves when changing the posture. Specifically, for example, in order to avoid the front wheel (1 in FIG. 2 of Patent Document 1), it is necessary to provide a front lower portion (20 g in FIG. 3 in Patent Document 1) on the auxiliary base, and avoid the front wheel and the like. An auxiliary stand had to be placed. As a result, there are many restrictions when the auxiliary platform is arranged on the tractor.

In addition, when the auxiliary base is configured so that the mounting surface of the auxiliary base in the non-use posture faces the outer side of the machine body, the mounting surface damaged by mounting the container can be seen from the outside of the container auxiliary base, There was a problem that the appearance of the tractor deteriorated and a problem that the mounting surface damaged by placing the container was easily rusted by wind and rain, and the appearance of the tractor was deteriorated.
It is an object of the present invention to realize a container auxiliary base that has few restrictions when placed on a tractor and has a good appearance.

[I]
(Constitution)
A first feature of the present invention is a tractor comprising a bonnet portion at a front portion of a fuselage, a fuel tank provided in a rear portion of the bonnet portion, and a fuel inlet for supplying fuel to the fuel tank. In this case, the configuration is as follows.
A container auxiliary stand for placing a container containing fuel to be replenished to the fuel tank is provided, and the posture of the container auxiliary stand can be freely changed between a placement posture for placing the container and a storage posture along the side surface of the bonnet portion. As well as
The said container auxiliary | assistant base is comprised so that the container mounting surface of the container auxiliary | assistant stand in the said storing attitude | position may face the body inner side.

(Function)
According to the first feature of the present invention, the container auxiliary base is configured to be freely changeable in the storing posture along the side surface of the bonnet portion by moving the outer side of the container auxiliary base upward from the mounting posture for placing the container. By configuring the container auxiliary table so that the container mounting surface of the container auxiliary table in the storage posture is directed toward the body side, the position of the inner side of the container auxiliary table does not move, The posture can be changed from the placement posture to the placement posture or the retracted posture. As a result, the container auxiliary table can be configured and arranged without worrying about the equipment located below the container auxiliary table.

  According to the first feature of the present invention, by configuring the container auxiliary table so that the container mounting surface of the container auxiliary table in the storage posture is directed toward the inside of the machine body, the container mounting surface of the container auxiliary table in the storage posture Is difficult to see from the outside of the auxiliary container stand, and the container mounting surface damaged by placing the container becomes difficult to rust due to wind and rain.

(The invention's effect)
According to the first feature of the present invention, since the container auxiliary base can be configured and arranged without worrying about the equipment located below the container auxiliary base, there are fewer restrictions when arranging the container auxiliary base on the tractor, The workability of the tractor design work and assembly work can be improved.

  According to the first feature of the present invention, the container mounting surface of the container auxiliary table in the retracted position is difficult to see from the outside of the container auxiliary table, and the container mounting surface damaged by mounting the container is rusted by wind and rain. Since it becomes difficult to attach, the appearance of the tractor can be improved.

[II]
(Constitution)
The second feature of the present invention is that the tractor according to the first feature of the present invention is configured as follows.
An opening is formed in a lower bonnet provided at a lower part of the bonnet portion, and the container auxiliary base is configured so that the container auxiliary base in the retracted posture is accommodated in the opening of the lower bonnet.

(Function)
According to the second feature of the present invention, the “action” described in the preceding item [I] is provided in the same manner as the first feature of the present invention, and in addition to this, the following “action” is provided.
According to the second feature of the present invention, the container auxiliary stand in the retracted posture can be accommodated in the opening of the lower bonnet, and the container auxiliary stand in the retracted posture protrudes greatly outward from the outer surface of the lower bonnet. Can be prevented. As a result, it is possible to prevent the container auxiliary base from obstructing traveling and work.

(The invention's effect)
According to the second feature of the present invention, the “effect of the invention” described in the preceding item [I] is provided in the same manner as the first feature of the present invention. In addition, the following “effect of the invention” is provided. ing.
According to the 2nd characteristic of this invention, since it can prevent that a container auxiliary | assistant stand obstruct | occludes driving | running | working and work | work, while being able to improve workability | operativity with a tractor, the appearance of a tractor can be improved further.

[Overall structure of tractor]
1 and 2 show an overall side view and an overall plan view of a tractor including a container auxiliary base 30 according to the present invention, respectively. As shown in FIGS. 1 and 2, the tractor is configured to have a four-wheel drive specification including a front wheel 1 configured to be steerable and drivable and a pair of left and right drivable rear wheels 2. . The front part of the aircraft is provided with an engine 3, a fuel tank 4, a radiator 5 for cooling the engine, and the like, and a steering handle 6, a driving step 7, a driver's seat 8, a fall protection frame 9 and the like are provided at the rear part of the aircraft.

  A front frame 10 extends forward from the lower part of the engine 3, and an axle case 11 for mounting the front wheel 1 is supported on the front frame 10. The mission case 12 located below the driver seat 8 is connected to the engine 3 via the clutch housing 13. An arched rear frame 14 extends upward from both sides of the clutch housing 13, and the control panel 15, the fuel tank 4, and the like are fixed to the rear frame 14.

  The engine 3, fuel tank 4, and the like disposed at the front of the airframe are covered with a bonnet 16 and a lower bonnet 17, respectively, and the front is covered with a front bumper 18 and a front grille 19. ing. Thus, the bonnet part B at the front part of the machine body is constituted by the bonnet 16, the lower bonnet 17, the front bumper 18, the front grille 19 and the like.

  The bonnet 16 is rotatably supported by the rear frame 14 around the axial center of the rear end portion in the left-right direction. When the bonnet 16 is opened upward, the upper part of the engine room is opened. ing. The lower bonnet 17 is connected to a front bumper 19 whose front end is fixed to the front frame 10, and its rear end is connected to a control panel 15 fixed to the rear frame 14.

  The fuel tank 4 disposed inside the bonnet 16 is hermetically molded with resin or metal, and a feed nozzle 4a is integrally formed on the top thereof, and a cap 4b is screwed into the feed nozzle 4a so that it can be attached and detached. It is attached. A circular inlet 16 a is formed at the rear of the bonnet 16, and the fuel tank 4 is arranged so that the inlet nozzle 4 a of the fuel tank 4 projects to the upper surface side of the bonnet 16 through the inlet 16 a. Yes. By disposing the fuel tank 4 as described above, fuel can be supplied from above the hood 16 without opening the hood 16 by removing the cap 4b of the fuel tank 4 from the supply nozzle 4a.

  In the central part of the front and rear of the lower bonnet 17 on the right side of the machine body, a container auxiliary base 30 to be described later is provided, and a plastic tank T that is an example of a container containing fuel such as light oil is placed on the container auxiliary base 30. The fuel can be supplied without placing a burden on the operator.

[Detailed structure of auxiliary container stand]
Based on FIGS. 3-6, the detailed structure of the container auxiliary | assistant stand 30 which concerns on this invention is demonstrated. As shown in FIGS. 3 to 6, the container auxiliary base 30 is supported on the machine body through a frame 22 and the like so as to be swingable and openable.

  An opening 17a is formed in the front and rear central portion of the lower bonnet 17 on the right side of the machine body. The opening 17a formed in the lower bonnet 17 is formed in a horizontally long rectangular shape in a side view, and a bent portion 17b that is bent toward the body side at an end portion of the lower bonnet 17 where the opening 17a is formed. Is formed, the strength of the end portion in the portion where the opening 17a is formed by the bent portion 17b is secured, and the appearance is improved.

  An upper end portion of the lower bonnet 17 has a U-shaped longitudinal cross-sectional shape, and a frame fixing portion 17c extending inward is formed on the upper surface side. In the frame fixing portion 17c, elongated holes opened inward for fixing a frame 22 to be described later are formed in two front and rear positions.

  On the outer surface of the rear end portion of the right front frame 10, a mounting plate 21 having an L-shaped vertical cross-section is fixed at two positions in the front and rear, and a mounting hole penetrating vertically is formed in the mounting plate 21. Yes.

  The frame 22 is formed in a curved shape at the lower end of the round pipe. At the upper end of the frame 22, a mounting pin 23 that is threaded at the tip and protrudes upward is provided at the lower end of the frame 22. The mounting pins 24 projecting downward are respectively fixed. An auxiliary base mounting bracket 25 having an L-shaped cross section is fixed to the lower portion of the frame 22, and a container auxiliary base 30 to be described later is connected to the outer end of the auxiliary base mounting bracket 25. A front and rear auxiliary mounting holes are formed.

  An open / close band mounting bracket 26 having an L-shaped cross section is fixed to the upper portion of the frame 22, and a front / rear band mounting hole for mounting an open / close band 37 described later is formed in the open / close band mounting bracket 26. Has been. A cushion rubber 27 is fixed to the opening / closing band mounting bracket 26, and the container auxiliary base 30 in the retracted posture is brought into contact with the container mounting surface 30a of the container auxiliary base 30 described later on the outer surface side of the cushion rubber 27. Can be prevented from generating noise due to vibration of the engine 3 or the like.

  With the configuration described above, the mounting pin 24 provided at the lower end of the frame 22 is inserted into the mounting hole of the mounting plate 21 fixed to the outer surface of the front frame 10 via the vibration isolating rubber 28. Then, the mounting pin 23 provided at the upper end portion of the frame 22 is inserted from the inner side into the elongated hole formed in the frame fixing portion 17c at the upper end portion of the lower bonnet 17 via the vibration isolating rubber 29, and the nut is screwed from above. Thus, the frame 22 can be fixed across the upper end portion of the lower bonnet 17 and the front frame 10. In this way, by attaching the frame 22 via the anti-vibration rubbers 28 and 29, it is possible to prevent the vibration of the engine 3 and the like from being transmitted to the auxiliary container 30 and the frame 22 to generate noise.

  By providing the frame 22 that supports the container auxiliary base 30 across the upper end of the lower bonnet 17 and the front frame 10 where the strength in the vertical and longitudinal directions is relatively ensured, fuel is supplied to the container auxiliary base 30. A mounting structure for the container auxiliary table 30 that is not easily damaged even when the plastic tank T is placed can be realized. In particular, when a poly tank T containing a large amount of fuel is placed, a large bending moment is likely to act on the frame 22 via the auxiliary container 30 and the opening / closing band 37. Therefore, by adopting the mounting structure of the frame 22 as described above, it is possible not only to prevent the frame 22 from being damaged, but also to prevent the mounting plate 21 to which the frame 22 is attached and the frame fixing portion 17c of the lower bonnet 17 from being damaged.

  As shown in FIGS. 3 and 4, the container auxiliary base 30 is formed in a horizontally long box shape that matches the shape of the polytank T. It is configured such that the posture can be freely changed to the retracted posture along the side surface of the lower bonnet 17.

  The container auxiliary base 30 includes an auxiliary base body 31, a decorative cover 32, an operation handle 38, a lock fitting 39, and the like. The auxiliary base body 31 constituting the container auxiliary base 30 is made of sheet metal and formed in a box shape, and an opening 31a for reducing the weight of the container auxiliary base 30 is formed on the upper surface side in the mounting posture. .

  A bracket 33 having a mounting hole facing in the front-rear direction is fixed to an inward end portion of the mounting position of the auxiliary base body 31, and the bracket 33 is fixed to the frame 22 via a pin 34. By connecting to the auxiliary base mounting bracket 25, the container auxiliary base 30 can be supported so as to be swingable up and down.

  On the upper surface of the outer end portion of the auxiliary base body 31 in the mounting posture, stopper plates 35 that are bent and formed obliquely outward are fixed at two front and rear positions. Can be guided to the position where the polytank T is placed by the stopper plate 35, and the polytank T can be prevented from dropping from the container auxiliary table 30 during refueling.

  A band mounting plate 36 is fixed to the upper surface side of the front end portion and the rear end portion of the auxiliary base body 31 in the mounting posture, and the opening / closing band 37 extends across the band mounting plate 36 and the opening / closing band mounting bracket 26. It is attached. The opening / closing band 37 is made of nylon fabric and is strong enough to withstand the weight of the polytank T. When the posture is changed from the placement posture or the storage posture to the storage posture or the placement posture, the opening / closing band 37 In order to prevent the opening / closing band 37 from being sandwiched between the lower bonnet 17 and the auxiliary container base 30, the central portion in the longitudinal direction of the front opening / closing band 37 is rearward and the longitudinal direction of the rear opening / closing band 37 is A crease is formed in which the central part of each of the two is bent forward. By comprising in this way, the operativity of the container auxiliary stand 30 can be improved.

  As shown in FIGS. 5 and 6, the outer surface side of the auxiliary base body 31 in the retracted position is covered with a decorative cover 32 painted in the same color as the lower bonnet 17, and the container auxiliary base 30 is in the retracted position. When changed, the outer surface of the lower bonnet 17 and the outer surface of the decorative cover 32 are configured to be flush with each other. With this configuration, the decorative cover 32 that constitutes the container auxiliary base 30 does not protrude outward from the lower bonnet 17 in the retracted position of the container auxiliary base 30, so that the appearance of the tractor is improved and the container auxiliary The base 30 can be prevented from obstructing traveling and work, and the container auxiliary base 30 can be prevented from being damaged.

  The decorative cover 32 is formed in a box shape with the same material as the lower bonnet 17, and is fixed to the outer peripheral surface of the auxiliary base body 31. A leaf spring-shaped lock fitting 39 is fixed to the outer end of the decorative cover 32 in the mounting posture, and the decorative cover 32 of the auxiliary container 30 is lifted upward from the mounting posture to the inner side. When the container auxiliary base 30 is pushed, the container mounting surface 30a of the container auxiliary base 30 comes into contact with the cushion rubber 27, and the lock fitting 39 engages with the engagement hole 17d of the lower bonnet 17, so that the container auxiliary base 30 is engaged. Can be changed to the retracted posture, and the auxiliary container 30 can be stably held in the retracted posture.

  The operation handle 38 is fixed to the outer surface side of the upper end portion of the decorative cover 32 in the retracted posture. When the operation portion 38a of the operation handle 38 is pulled outward from the retracted posture, the lower bonnet 17 of the lock metal fitting 39 is provided. The engagement with the engagement hole 17d is released, and the container auxiliary base 30 can be changed in posture to the placement posture.

  As described above, by configuring the container auxiliary table 30, when the operation portion 38a of the operation handle 38 is pulled outward from the storage posture of the container auxiliary table 30 shown in FIGS. It swings outward due to its own weight, and stops swinging at the position where the container mounting surface 30a becomes substantially horizontal by the front and rear opening and closing bands 37, and the posture of the auxiliary container stand 30 is changed to the mounting posture simply and quickly. The fuel tank 4 can be refueled by placing the polytank T on the container mounting surface 30a of the auxiliary container 30.

  On the other hand, when the decorative cover 32 of the container auxiliary base 30 is lifted upward and pushed inward from the mounting posture of the container auxiliary base 30 shown in FIGS. 3 and 6, the container mounting surface 30a faces inward. The container auxiliary base 30 is held in the retracted position by the lock fitting 39 at the substantially vertical position, and the container auxiliary base 30 can be easily and quickly changed to the retracted position.

  As described above, the container mounting surface 30a of the container auxiliary table 30 is configured to face inward in the retracted posture, so that the container mounting surface 30a is damaged by mounting the polytank T on the container auxiliary table 30. Even in the case where the container auxiliary table 30 is stored, the container mounting surface 30a is not damaged, so that the appearance of the tractor can be improved. Moreover, since the container mounting surface 30a with a crack etc. is less exposed to a wind and rain etc., the container auxiliary stand 30 can be prevented from being rusted.

[First Alternative Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], an example in which the container auxiliary base 30 is provided in the lower bonnet 17 has been shown. However, in a tractor having a different bonnet part B structure, the bonnet part B is configured. You may employ | adopt the structure which provides the container auxiliary stand 30 in a different component. Moreover, although the example which formed the opening 17a and provided the container auxiliary stand 30 in the front-back center part of the lower bonnet 17 of the right side of the body was shown, the structure which provides the container auxiliary stand 30 on the left side of the body may be employ | adopted. Alternatively, a configuration in which the container auxiliary base 30 is provided by forming the opening 17a in the front portion or the rear portion of the lower bonnet 17 may be adopted.

  In the above-mentioned [Best Mode for Carrying Out the Invention], the example in which the frame 22 that supports the container auxiliary base 30 is provided across the front frame 10 and the frame attachment portion 17c of the lower bonnet 17 has been shown. The members that fix the frame 22 may be different members. For example, a configuration may be adopted in which the frame 22 that supports the container auxiliary base 30 is fixed to the transmission case 12, the clutch housing 13, the rear frame 14, and the like.

  In the above-mentioned [Best Mode for Carrying Out the Invention], an example is shown in which the opening 17a is formed in the lower bonnet 17 and the decorative cover 32 is attached to the auxiliary base body 31 to configure the container auxiliary base 30. You may employ | adopt the structure which provides the container auxiliary stand 30 in the outer side of the lower bonnet 17 separately.

[Second Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Alternative Embodiment], an example in which the auxiliary container body 30 and the decorative cover 32 are provided to constitute the auxiliary container base 30 has been shown. However, the auxiliary container base 30 in which the auxiliary base body 31 and the decorative cover 32 are integrally formed may be employed.

  In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Different Embodiment of the Invention], the container auxiliary base 30 is swingable around the axis of the auxiliary base mounting hole of the auxiliary base mounting bracket 25. However, the mechanism for changing the posture of the container auxiliary table 30 may be a different mechanism.

  In the above-mentioned [Best Mode for Carrying Out the Invention] and [First Alternative Embodiment], an example in which the container auxiliary base 30 is held in the mounting posture by the opening / closing band 37 has been shown. A different structure may be adopted as a holding tool for holding the table 30 in the mounting posture. For example, a configuration in which the container auxiliary table 30 is held in the mounting posture by a foldable stay (not shown) or the like may be adopted. Good.

Overall right side view of the tractor Overall view of the tractor Side view near the container auxiliary stand in the mounting position Plan view of the vicinity of the auxiliary container stand in the mounting position Longitudinal front view near the auxiliary container stand in the retracted position Longitudinal front view near the auxiliary container stand in the mounting position

Explanation of symbols

4 Fuel tank 16a Supply port 17 Lower bonnet 17a Opening 30 Container auxiliary stand 30a Container mounting surface B Bonnet part T Poly tank (container)

Claims (2)

A tractor provided with a bonnet part at the front part of the airframe, with a fuel tank provided at the rear part of the bonnet part, and provided with a supply port for supplying fuel to the fuel tank,
A container auxiliary stand for placing a container containing fuel to be replenished to the fuel tank is provided, and the posture of the container auxiliary stand can be freely changed between a placement posture for placing the container and a storage posture along the side surface of the bonnet portion. As well as
The tractor which comprises the said container auxiliary | assistant stand so that the container mounting surface of the container auxiliary | assistant stand in the said storing attitude | position may face the body inner side.   The container auxiliary base is configured such that an opening is formed in a lower bonnet provided at a lower portion of the bonnet portion, and the container auxiliary base in the retracted posture is accommodated in the opening of the lower bonnet. The described tractor.

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