JP4369305B2 - Work vehicle - Google Patents

Description

  The present invention relates to a configuration of a work vehicle that includes a cabin that covers a driving section and that has a turn indicator attached to the cabin.

2. Description of the Related Art Conventionally, work vehicles such as a tractor including a cabin that covers a driving unit and a direction indicator attached to the cabin are known. In this work vehicle, a stay is provided on a front frame and a rear frame of a cabin erected on the front, rear, left, and right sides of the driving unit, and a direction indicator is attached to the stay (for example, see Patent Document 1). ).
Japanese Patent Laid-Open No. 2004-130982

  However, in the above-described technology, since the direction indicator attached to the rear frame of the cabin is disposed behind the rear glass at the rear of the cabin, a work machine such as a tiller is attached to the rear part of the work vehicle body. When the work is performed, soil and mud splashed up by the work machine and the rear wheels are likely to adhere to the direction indicator, and there is a possibility that the visibility of the direction indicator is lowered when traveling on the road. Further, since the rear frame of the cabin is configured to be as thin as possible in order to ensure a field of view behind the aircraft, the direction indicator cannot be firmly attached.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

According to claim 1, in a work vehicle that includes a cabin (21) that covers a driving part, and that attaches a direction indicator (50) to the cabin (21), the cabin (21) is located at a side of the cabin (21). A pair of left and right direction indicators (50) are attached in front of the rear glass (38) provided at the rear part, and the direction indicators (50) are located in front of the rotational axis (6a) of the rear wheel (6). It is fixed to the intermediate frame (24) disposed in the middle of the front and rear of the cabin (21), and is attached so as to protrude from the intermediate frame (24) to the side of the aircraft, and the direction indicator (50) is attached. The cabin (21) is disposed so as to be located on the outer side of the fuselage with respect to the open position of the side glass (36) provided on the rear side of the intermediate frame (24) of the cabin (21) .

According to Claim 2, in the work vehicle according to Claim 1, the direction indicator (50) is lower than the upper frame (25) of the cabin (21) in the front view, and the fender (27). It is provided above and on the center side of the fuselage from the outer end .

According to a third aspect of the present invention, in the work vehicle according to the first or second aspect, the main body of the direction indicator (50) is constituted by a transparent lens (52) .

  As effects of the present invention, the following effects can be obtained.

  According to a first aspect of the present invention, in the work vehicle including the cabin that covers the driving unit and attaching the direction indicator to the cabin, the pair of left and right direction indicators are attached to the side of the cabin in front of the rear glass provided at the rear of the cabin. For this reason, even when a work machine such as a tillage machine is attached to the rear part of the machine body of the work vehicle and the work is performed on the farm field, the soil and mud splashed up by the work machine do not adhere to the direction indicator. Therefore, it is possible to prevent the visibility of the direction indicator from being lowered due to adhesion of soil or mud during traveling on the road.

In addition , since the direction indicator is arranged in front of the rotational axis of the rear wheel, soil and mud that is sprinkled by the rear wheel does not adhere to the direction indicator when traveling on the road. Therefore, it is possible to prevent the visibility of the direction indicator from being deteriorated due to adhesion of soil and mud during traveling on the road.

Further , since the direction indicator is attached to the intermediate frame disposed in the middle part of the front and rear of the cabin so as to protrude to the side of the machine body, it can be firmly fixed to the cabin.

In addition , since the direction indicator is arranged so as to be located outside the fuselage with respect to the open position of the side glass provided so as to be openable and closable behind the intermediate frame of the cabin, it is confirmed from the rear of the fuselage even when the side glass is opened This improves the visibility of the direction indicator.

In the present invention, the direction indicator is provided below the upper frame of the cabin and at the center side of the fuselage above the outer end in the front view. Can be reliably protected from dirt and mud splashed by the rear wheels.

In claim 3 , since the main body of the direction indicator is composed of a transparent lens, the direction indicator can be confirmed from the side of the aircraft in addition to the rear of the aircraft, Visibility can be improved.

  Next, embodiments of the invention will be described.

  FIG. 1 is a side view of a tractor according to an embodiment of the present invention, and FIG. 2 is a front view of the same.

  3 is a rear view of the same, and FIG. 4 is a rear view of a mounting portion of the direction indicator.

  FIG. 5 is a sectional view of a direction indicator, and FIG. 6 is a side view showing another embodiment of the tractor.

  First, an overall configuration of a work vehicle according to an embodiment of the present invention as a tractor will be described.

  As shown in FIGS. 1 to 3, a front axle 2 is swingably disposed at a front lower portion of the engine frame 1, and front wheels 3 and 3 are provided at both ends of a front axle that is pivotally supported by the front axle 2. It is attached. A transmission case 4 is fixed to the rear part of the engine frame 2, and rear axle cases 5, 5 are attached to the left and right side surfaces of the rear part of the transmission case 4, and are pivotally supported by the rear axle case 5, 5. Rear wheels 6 and 6 are attached to both ends of the rear axle. At the rear of the mission case 4 is provided a work machine mounting device including a top link 7 and lower links 8 and 8, and a work machine such as a cultivator can be mounted on the machine body via the work machine mounting device. .

  Further, an engine 9 is placed on the middle part of the engine frame 1 before and after. A radiator, a battery, and the like are disposed in front of the engine 9, and the engine 9, the radiator, the battery, and the like are covered with a bonnet 10. Headlights 11 and 11 are provided at the front portion of the bonnet 10, and work lights 12 and 12 are provided on the left and right sides of the headlamps 11 and 11.

  A dashboard 15 is disposed behind the bonnet 10. A handle column is disposed in the dashboard 15, and a handle 16 is fixed to an upper end of a handle shaft supported by the handle column. A seat 17 is disposed behind the handle 14 disposed on the rear upper side of the dashboard 15, a step 18 is disposed on the front lower side of the seat 17, and a driving unit is configured behind the bonnet 10. Yes. The operating unit is covered with the cabin 21.

  Next, the configuration of the cabin 21 will be described.

  As shown in FIGS. 1 to 4, the cabin frame of the cabin 21 includes front frames 22 and 22, rear frames 23 and 23, intermediate frames 24 and 24, an upper frame 25, a lower frame 26, a fender 27, and the like. The upper windshield 31 and the lower windshield 32 that form a front window in a portion surrounded by the left and right front frames 22, 22, the upper frame 25, and the lower frame 26 sandwich the auxiliary frame 28. Is provided.

  In addition, side doors are provided on the left and right sides of the cabin frame at portions surrounded by the front frame 22, the fender 27, the intermediate frame 24 erected on the fender 27, the upper frame 25, and the lower frame 26. A door glass 33 to be formed is provided. The door glass 33 is provided with a handle 34 for opening and closing on the front outer side, and is attached to the intermediate frame 24 via hinges 35 and 35 on the rear side. It is comprised so that rotation is possible.

  A side glass 36 that forms a side window is provided behind the door glass 33 in a portion surrounded by the intermediate frame 24, the rear frame 23, the upper frame 25, and the fender 27. The side glass 36 is provided with a handle for opening and closing on the front inner side, and is attached to the rear frame 23 via hinges 37 and 37 on the rear side. The hinges 37 and 37 are used as rotation fulcrums so that the outside air can be taken in. It is configured to be slightly rotatable toward the side of the machine body.

  A rear glass 38 that forms a rear window is provided in a portion surrounded by the left and right rear frames 23, 23, the upper frame 25, and the lower frame 26. The rear glass 38 is provided with a handle for opening and closing on the lower inner side, and is attached to the upper frame 25 via hinges 39 and 39 on the upper side so that the hinges 39 and 39 can be turned upwards as pivot points. It is configured.

  A roof 40 is provided on the upper frame 25 so as to cover the operating part with the roof 40 and upper and lower windshields 31 and 32, left and right door glasses 33 and 33, left and right side glasses 36 and 36, and a rear glass 38. A cabin 21 is formed in the interior. In the upper part of the cabin 21, a plurality of front work lights 41, 41, 41, 41 are provided on the left and right sides of the front side, and rear work lights 42, 42 are provided on the left and right sides of the rear side. Indicators 50 and 50 are provided.

  As shown in FIG. 5, the direction indicator 50 is composed of a transparent or semi-transparent synthetic resin or glass having a substantially trapezoidal shape in cross section on a main body 51 formed in a substantially hemispherical shape in cross section. A lens 52 is attached, a reflecting plate 53 formed in a substantially hemispherical shape is disposed on the open side of the main body 51 inside the lens 52, and a light bulb 54 is disposed in a substantially central portion of the reflecting plate 53. . A cylindrical stay 55 is communicated and fixed to the main body 51, and the direction indicator 50 is attached to the cabin 21 via the stay 55 so as to light up or blink toward the rear of the machine body. The direction indicator 50 also has a hazard function.

  The direction indicator 50 is attached to the upper part of the intermediate frame 24 of the cabin 21 so as to protrude to the side of the machine body via a stay 55. In the front-rear direction of the machine body, the direction indicator 50 is located behind the door glass 33. The rear wheel 38 is disposed so as to be located in front of the rear glass 38, and is disposed so as to be located in front of the rotational axis 6a of the rear wheel 6. Further, the direction indicator 50 is disposed so as to be positioned on the inner side of the outer side surface of the fender 27 and on the outer side of the side glass 36 disposed behind the direction indicator 50 in the left-right direction of the body. Has been. In other words, the direction indicators 50 and 50 have the fuselage more than the front end 36a of the side glass 36 even when the side glass 36 is rotated to the outermost side (in the open position) as indicated by a two-dot chain line in FIG. It is arranged to be located outside.

  As described above, in the tractor including the cabin 21 that covers the operation unit, the pair of left and right direction indicators 50 and 50 are attached to the side of the cabin 21 in front of the rear glass 38 provided in the rear portion of the cabin 21. Even when a work machine such as a cultivator is attached to the rear of the tractor and the work is performed on the farm field, soil and mud that are spun up by the work machine do not adhere to the direction indicators 50 and 50. In addition, since the direction indicators 50 and 50 are arranged in front of the rotational axis 6a of the rear wheels 6 and 6, even when traveling on the road, the soil and mud that are splashed up by the rear wheels 6 and 6 are directed. It does not adhere to the vessel 50. Therefore, it is possible to prevent the visibility of the direction indicator from being deteriorated due to adhesion of soil or mud during traveling on the road.

  Furthermore, since the direction indicators 50 and 50 are attached to the intermediate frames 24 and 24 disposed in the middle part of the cabin 21 so as to protrude to the side of the machine body, the direction indicators 50 and 50 can be firmly fixed to the cabin 21. Furthermore, since the direction indicator 50 is disposed so as to be positioned outside the body of the side glass 36, 36 that can be opened and closed behind the intermediate frames 24, 24, the body even when the side glass 36, 36 is opened. It can be confirmed from the rear, and the visibility of the direction indicators 50 and 50 is improved. Further, since the direction indicators 50 and 50 are provided below the upper frame 25 of the cabin 21 and above the fender 27 and in the center of the fuselage from the outer end in the front view, the rear wheels It can be surely protected from dirt and mud splashed by 6.6.

  As shown in FIG. 6, in a tractor that does not cover the driving unit with the cabin, the direction indicators 60 and 60 have a substantially inverted U-shape that is rotatably supported behind the seat 17 of the driving unit. It is attached to the left and right of the upper part of the safety frame 61 so as to protrude to the side of the machine body via stays 62. In this case, the direction indicators 60 and 60 are fixed to the safety frame 61 by tightening bolts and attached so as to be adjustable up and down.

  In addition, the direction indicator is not limited to the above-described configuration, and the body is composed of a lens made of transparent or translucent synthetic resin or glass, and reflectors are provided on the front and rear sides of the light bulb, so It is also possible to configure to turn on or blink toward the screen. Thereby, it is possible to confirm the direction indicator from the side of the aircraft as well as from the rear of the aircraft, and the visibility of the direction indicator can be enhanced.

A side view of a tractor concerning one example of the present invention. Similarly front view. Similarly rear view. The rear view of the attaching part of a direction indicator. Sectional drawing of a direction indicator. The side view which shows another Example of a tractor.

6 Rear wheel 6a Rotating shaft core 21 Cabin 24 Intermediate frame 36 Side glass 38 Rear glass 50 Direction indicator

Claims (3)

In a work vehicle that includes a cabin (21) that covers a driving part, and that attaches a direction indicator (50) to the cabin (21), a rear glass provided on the side of the cabin (21) and at the rear of the cabin (21) (38) A pair of left and right direction indicators (50) are attached to the front of the cabin (21) , and the direction indicators (50) are located in front of the rotating shaft core (6a) of the rear wheel (6) at the front of the cabin (21). It is fixed to the intermediate frame (24) arranged in the front and rear halfway, and is attached so as to protrude from the intermediate frame (24) to the side of the machine body. The direction indicator (50) is attached to the cabin (21). A work vehicle, characterized in that the work vehicle is disposed so as to be positioned on the outer side of the fuselage with respect to an open position of a side glass (36) provided to be openable and closable behind the intermediate frame (24) . The work vehicle according to claim 1, wherein the direction indicator (50) is lower than the upper frame (25) of the cabin (21) in the front view, above the fender (27), and at the outer end. A work vehicle characterized by being provided closer to the center of the fuselage . The work vehicle according to claim 1 or 2, wherein a main body of the direction indicator (50) is constituted by a transparent lens (52) .

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