JP7146660B2 - work vehicle - Google Patents

Description

Article 30, Paragraph 2 of the Patent Law applies Exhibition name: 2019 Kubota New Year's Gathering Product Exhibition Venue: Kyoto Pulse Plaza (5, Takeda Tobadono-cho, Fushimi-ku, Kyoto) Exhibition date: January 16 and 17, 2019 day (2 days)

The present invention relates to work vehicles such as tractors.

BACKGROUND ART Conventionally, a work vehicle disclosed in Patent Document 1 is known.
The work vehicle disclosed in Patent Document 1 includes a traveling body, front wheels and rear wheels provided on the traveling body, a driver's seat mounted on the traveling body, a cabin surrounding the driver's seat, and a lower part of the entrance of the cabin. and a step for getting on and off.

JP 2014-214697 A

However, in the above work vehicle, the position of the step for getting on and off is fixed. Therefore, for example, when the rear wheels of the work vehicle are changed from tires to crawlers, the distance between the step for getting on and off and the crawler in the front-to-rear direction becomes short, which may make safe getting on and off difficult.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a work vehicle in which the position of a step for getting on and off can be changed at least in the longitudinal direction as needed.

A work vehicle according to an aspect of the present invention includes a vehicle body, a driver's seat mounted on the vehicle body, front wheels provided at a front portion of the vehicle body, rear wheels provided at a rear portion of the vehicle body, and the driver's seat. a cabin surrounding the seat; a first support frame connected to the vehicle body ; and an entry/exit step provided between the front wheel and the rear wheel on the side and below the cabin and movable in the front-rear direction. , wherein the step includes a base extending linearly in the front-rear direction, the base being attached to the first support frame such that the position in the front-rear direction, which is the direction in which the base extends, can be changed. However, it can be moved in the front-rear direction by changing the position of the base in the front-rear direction.
Preferably, the vehicle body has a clutch housing , and the first support frame supports a urea tank that is connected to the clutch housing and stores urea water .

Preferably, a second support frame is provided that is connected to the clutch housing and supports a fuel tank that stores fuel, and the step is connected to the second support frame so as to be movable in the longitudinal direction.
Preferably, the step for getting on and off includes a first extension portion including the base portion, a first extension portion extending outward from the front end portion of the base portion, and a second extension portion extending outward from the vehicle body from the rear end portion of the base portion . a step member, a step plate disposed between the first extension portion and the second extension portion for placing the foot thereon, and a front portion of the step plate provided at the front portion of the step plate so that the first extension portion approaches the cabin. A front plate is attached movably to the side or to the side away from the cabin, and the second extension portion provided at the rear portion of the step plate is movable to the side to approach the cabin or to the side away from the cabin. a second step member including a rear plate attached to the second step member.

Preferably, said first step member is connected to said second support frame.
Preferably, the getting-on/off step has a step plate on which a foot is placed, and a support mechanism provided along a side edge of the step plate and supporting the step plate so as to be movable in the front-rear direction, and the support mechanism is located above the upper surface of the step plate.
Preferably, an attachment portion for attaching the second step member to the first step member and a movement restricting portion for restricting movement of the second step member with respect to the first step member are provided, and the attachment portion includes a plurality of mounting portions arranged in the width direction of the vehicle body, and the movement restricting portion disables mounting by the plurality of mounting portions when the second step member is moved laterally away from the cabin. prevent movement to any position.

Preferably, the second step member has an orientation defining portion that defines a vertical orientation with respect to the first step member and prevents downward movement with respect to the first step member.

According to the work vehicle, the step for getting on and off is provided between the front wheel and the rear wheel and on the side and below the cabin, and is movable in the front-rear direction. direction can be changed.

It is a top view which shows arrangement|positioning of an armrest etc. around a driver's seat. It is a top view of a driver's seat and an armrest. It is a part of driver's seat, an armrest, a moving mechanism, and a front view of a 2nd moving mechanism. It is a top view of an armrest. It is the side view which looked at the armrest from the driver's seat side (left side). It is the side view which looked at the armrest from the driver's seat and the opposite side (right side). It is the perspective view which looked at the 1st part of the armrest from the upper left. It is the perspective view which looked at the 1st part of the armrest from the upper right. FIG. 5 is a perspective view showing operation switches and the like provided on the second portion of the armrest; FIG. 4 is a front view showing the arrangement of armrests, side struts, a display device, etc. around the driver's seat; FIG. 4 is a plan view of part of the driver's seat, armrests and side console; It is the perspective view which looked at the display apparatus, the support member, etc. from the left front. It is the side view which looked at the movement mechanism of an armrest, and a 2nd movement mechanism from the driver's seat and the opposite side (right side). FIG. 4 is an exploded perspective view of a movement mechanism of an armrest; FIG. 4 is an exploded perspective view of part of the movement mechanism of the armrest; It is the perspective view which looked at the movement mechanism of an armrest from the lower right. It is a side view which shows operation|movement of an operating lever, a rotating body, and a nail|claw part. It is a perspective view which shows the change of the positional relationship of a nail|claw part and a latching|locking part. FIG. 10 is a side view showing the operation of the movement mechanism of the armrest (movement of the second member with respect to the first member); Fig. 2 is a perspective view of the display device, the support member, the strut cover, the side console, and the like as seen from the front of the driver's seat side; It is the perspective view which looked at the display device, the support member, the support|pillar cover, etc. from the driver's seat and the opposite side. FIG. 4 is an explanatory diagram of a slide mechanism of the display device; FIG. 22 is a cross-sectional view taken along the line AA of FIG. 21; It is a figure which shows embodiment which provided the display apparatus in the meter panel. It is a top view of an armrest and a side console. It is the perspective view which looked at the side console from the left front. FIG. 4 is a top view of the side console perpendicular to the inner area of the top plate; FIG. 4 is a perspective view showing a state in which a lid provided on the front portion of the side console is removed; FIG. 3 is an exploded perspective view of the step for getting on and off; It is the figure which looked at the raising/lowering step, a urea tank, a fuel tank, a 1st support frame, a 2nd support frame, etc. from the upper left front. It is the figure which looked at the raising/lowering step, a urea tank, a fuel tank, a 1st support frame, a 2nd support frame, etc. from the lower front left. FIG. 5 is a perspective view showing movement of the step for getting on and off in the width direction of the vehicle body; It is a perspective view which shows the movement to the front-back direction of a boarding/alighting step. It is a figure which shows the attachment method of the 1st support frame with respect to a clutch housing and a transmission case, and a 2nd support frame. FIG. 11 is a diagram showing an example of a menu screen M1; FIG. FIG. 11 is a diagram showing an example of a viewing setting screen M2; FIG. It is a figure which shows an example of the Monroe setting screen M3. It is a figure which shows an example of turning setting screen M4. 1 is a plan view of a work vehicle; FIG. 1 is a side view of a working vehicle; FIG. It is the perspective view which looked at the lower step of the boarding/alighting step of another embodiment from upper direction. It is the perspective view which looked at the lower step of the boarding/alighting step of another embodiment from the downward direction. It is a left side view of the lower step of the boarding/alighting step of another embodiment. FIG. 11 is a perspective view of a first step member of a lower step of the boarding/alighting step of another embodiment; FIG. 11 is a perspective view of a second step member of the lower step of the boarding/alighting step of another embodiment; It is a front view of the lower step of the boarding/alighting step of another embodiment. 44 is a diagram showing a state in which the second step member is moved inward of the vehicle body from the state of FIG. 43; FIG. FIG. 44 is a view for explaining that the movement of the second step member to the outside of the vehicle body is blocked by the movement restricting portion from the state of FIG. 43 ;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
36 is a plan view of the work vehicle 1, and FIG. 37 is a side view of the work vehicle 1. FIG. The working vehicle 1 is a vehicle for performing agricultural work, and is a tractor in the case of this embodiment. Hereinafter, it is assumed that the work vehicle 1 is the tractor 1 . However, the work vehicle 1 is not limited to a tractor.

In the following description, the front side of the driver seated in the driver's seat 10 of the tractor 1 (direction of arrow A1 in FIGS. 36 and 37) is forward, and the rear side of the driver (direction of arrow A2 in FIGS. 36 and 37) is backward. , the left side of the driver (in the direction of arrow B1 in FIG. 36) is defined as the left side, and the right side of the driver (in the direction of arrow B2 in FIG. 36) is defined as the right side. Also, the direction indicated by the arrow K1 in FIGS. 36 and 37 will be described as the front-rear direction. A horizontal direction (direction of arrow K2 in FIG. 37) orthogonal to the front-rear direction is referred to as a width direction of the vehicle body. Also, the direction of the width of the tractor 1 toward the right or left from the central portion of the tractor 1 is referred to as the outer side of the vehicle. Also, a direction in the width direction of the vehicle body from the right or left portion of the tractor 1 to the central portion of the tractor 1 is referred to as the vehicle body inner side.
<Overall configuration of work vehicle>
As shown in FIGS. 36 and 37, the tractor 1 includes a vehicle body 2, a travel device 3, and a connecting portion 4. As shown in FIGS.

As shown in FIG. 37 , the vehicle body 2 has a vehicle body frame 5 , a clutch housing 6 and a transmission case 7 . The vehicle body frame 5 extends in the longitudinal direction of the vehicle body 2 . A prime mover 8 is mounted on the body frame 5 . In this embodiment, the prime mover 8 is the engine 8 . A bonnet 29 covers the upper side of the engine 8 . The clutch housing 6 is connected to the rear part of the engine 8 and accommodates the clutch. The transmission case 7 is connected to the rear portion of the clutch housing 6 and accommodates a transmission, a rear wheel differential, and the like. The transmission includes a main transmission and an auxiliary transmission. A PTO shaft 9 protrudes behind the transmission case 7 .

The travel device 3 has front wheels 3</b>F provided at the front portion of the vehicle body 2 and rear wheels 3</b>R provided at the rear portion of the vehicle body 2 . The front wheel 3</b>F is supported by the body frame 5 . The rear wheels 3R are supported by the output shaft of the rear wheel differential. The rear wheels 3R may be tires or crawlers.
The connecting portion 4 is provided at the rear portion of the vehicle body 2 . The connecting portion 4 is a portion for connecting a working device (ground working machine) for working on a field (agricultural land) or the like to the rear portion of the tractor 1 . The working device is driven by driving force transmitted from the PTO shaft 9, for example. Specifically, the work device is a cultivator, a spreader, a sowing machine, or the like, but is not limited to these.

The connecting part 4 is an elevating device that is driven by an actuator such as a hydraulic cylinder to elevate or lower the working device (hereinafter also referred to as "elevating device 4"). In this embodiment, the lifting device 4 is a three-point link mechanism and has a lift arm 4a, a lower link 4b, a top link 4c, a lift rod 4d and a lift cylinder 4e. A horizontal control device (Monroe) is provided at the rear portion of the vehicle body 2 to keep the working device horizontal.

A vehicle body 2 is equipped with a driver's seat 10 and a cabin 11 surrounding the driver's seat 10. - 特許庁As shown in FIG. 1 , a steering wheel 12 is provided in front of the driver's seat 10 . The steering wheel 12 is supported on the top of a column cover 14 provided on the top of the control platform 13 .
In front of the driver's seat 10 and below the steering wheel 12 are an accelerator pedal 15, a left brake pedal 16L, a right brake pedal 16R, a clutch pedal 17, and a decoupling pedal for decoupling the brake pedals 16L and 16R. 18 are provided.

The tractor 1 is equipped with a control device (not shown) that controls a traveling system and a working system. The control device includes an arithmetic unit (CPU, etc.), a storage unit (memory), etc., and executes predetermined control based on a program stored in the storage unit. More specifically, the control device receives operation signals when operation tools (levers, switches, dials, etc.) installed around the driver's seat 10 are operated, and detection signals of various sensors mounted on the vehicle body 2. The traveling system and work system of the tractor 1 are controlled based on the above. For example, the control device executes control related to elevation of the lifting device 4 based on the operation signal from the operation tool, control of the rotation speed of the engine 8 based on the detection signal from the accelerator pedal sensor, and the like.
<Armrest>
As shown in FIGS. 1 to 3, an armrest 20 is provided on one side (right side) of the driver's seat 10 . The armrest 20 is arranged with its longitudinal direction oriented in the front-rear direction and its lateral direction oriented in the width direction of the vehicle body. Hereinafter, the lateral direction of the armrest 20 is referred to as the width direction of the armrest 20 . The width direction of the armrest 20 is a direction orthogonal to the longitudinal direction of the armrest 20 and is the same direction as the width direction of the vehicle body.

Armrest 20 has a first portion 21 and a second portion 22 . The first portion 21 is provided on one longitudinal side (front side) of the armrest 20 . The second portion 22 is provided on the other longitudinal side (rear side) of the armrest 20 . That is, the first portion 21 is provided in front of the second portion 22 .
First, the first portion 21 of the armrest 20 will be described.

As shown in FIG. 1, the first portion 21 is arranged in front of the backrest portion 10a of the driver's seat 10 in the front-rear direction. The first portion 21 overlaps the seat portion 10b of the driver's seat 10 in the front-rear direction. A front end portion of the first portion 21 (a front end portion of the armrest 20 ) is located forward of the seat portion 10 b of the driver's seat 10 .
As shown in FIG. 2, the surface of the first portion 21 (hereinafter referred to as "first surface portion 21A") is provided with an operation tool 30 for performing operations related to traveling and/or work. As shown in FIGS. 3 to 6, the first surface portion 21A has a first upper surface 21U, a first lower surface 21D, a first left side 21L, a first right side 21R, and a first front surface 21F.

The first surface portion 21A is provided on one longitudinal side (front side) of the armrest 20 . Therefore, the first upper surface 21U, the first lower surface 21D, the first left side surface 21L, the first right side surface 21R, and the first front surface 21F are all provided on one longitudinal side (front side) of the armrest 20 .
The first upper surface 21U has a first region 21U1 and a second region 21U2. As shown in FIGS. 3 and 6 to 8, the second region 21U2 is recessed with respect to the first region 21U1. In other words, the height of the second region 21U2 is lower than the height of the first region 21U1. As shown in FIGS. 3, 4, etc., the first region 21U1 is provided on one side (left side) of the armrest 20 in the width direction. The second region 21U2 is provided on the other widthwise side (right side) of the armrest 20 .

The first region 21U1 extends in the longitudinal direction of the armrest 20 from the front end to the rear end of the first upper surface 21U on one side (left side) in the width direction of the armrest 20 . Moreover, it extends over the entire length of the width direction of the armrest 20 at the rear end portion of the first upper surface 21U. That is, the first region 21U1 is provided in an L shape when viewed from above.
The second region 21U2 extends in the longitudinal direction of the armrest 20 from the front end to the vicinity of the rear end of the first upper surface 21U on the other widthwise side (right side) of the armrest 20 .

As shown in FIGS. 7 and 8, the upper surface (first upper surface 21U) of the armrest 20 has an upright surface 24 that rises from the second area 21U2 toward the first area 21U1. The standing surface 24 has a first standing surface 241 and a second standing surface 242 . The second upright surface 242 is located on the side (right side) away from the driver's seat 10 with respect to the first upright surface 241 .
As shown in FIGS. 5 and 6, the first region 21U1 and the second region 21U2 are curved so as to gradually move downward toward the front in a side view. In other words, the upper surface of the armrest 20 is formed into an upwardly convex curved surface. The curved surface of the second region 21U2 is positioned below the curved surface of the first region 21U1.

As shown in FIGS. 2 and 3, the first left side surface 21L faces the driver's seat 10 side (inward of the vehicle body). The first right side surface 21R faces the side opposite to the driver's seat 10 (outside of the vehicle body). As shown in FIGS. 4, 5 and 7, a recess 23 is formed in the first left side surface 21L. The upper end of the concave portion 23 is continuous with the first region 21U1 of the first upper surface 21U.
As shown in FIGS. 5 and 7, the recess 23 has an inclined surface 23a, a front surface 23b, and a rear surface 23c. The inclined surface 23a is inclined so as to move away from the driver's seat 10 (toward the right) as it goes upward from below. The front surface 23b connects the front edge of the inclined surface 23a and the first left side surface 21L. The rear surface 23c connects the rear edge portion of the inclined surface 23a and the first left side surface 21L. The front surface 23b is inclined rearward as it goes downward. The right edge of the front surface 23b is continuous with the front edge of the inclined surface 23a. The rear surface 23c is inclined forward as it goes downward. The left edge of the rear surface 23c is continuous with the rear edge of the inclined surface 23a. The upper portion of the rear surface 23c is a curved surface.

As shown in FIGS. 2 and 4, the first portion 21 of the armrest 20 shifts toward the outside of the vehicle body (toward the side away from the driver's seat 10) toward the front when viewed from above. In other words, the first left side surface 21L of the armrest 20 moves away from the driver's seat 10 (to the right) toward the front end in the width direction of the vehicle body. The front portion of the first portion 21 (the front portion of the armrest 20) is curved toward the outside of the vehicle body (the side away from the driver's seat 10) toward the front end portion when viewed from above. In FIG. 4, the front curved portion of the first portion 21 is designated 21a. The front portion of the armrest 20 has a curved portion 21a so that it does not overlap the imaginary line L1 connecting the right corner of the seat portion 10b of the driver's seat 10 and the right rear portion of the accelerator pedal 15 (see FIG. 1). This prevents the worker's right leg from hitting the armrest 20 when the worker sitting on the driver's seat 10 operates the accelerator pedal 15 .

As shown in FIGS. 4 to 8, the manipulator 30 provided on the first surface portion 21A includes a plurality of travel system manipulators 30A and a plurality of work system manipulators 30B. The travel system operation tool 30A is an operation tool for performing operations related to travel of the tractor 1 . The work system operation tool 30B is an operation tool for performing operations related to work. Specifically, the work system operation tool 30B is an operation tool for operating the lifting device 4 for lifting and lowering the working device.

At least one travel system operation tool 30A among the plurality of travel system operation tools 30A is the first travel operation tool 30A1 operated in the first operation mode. At least one travel system operation tool 30A among the plurality of travel system operation tools 30A is a second travel operation tool 30A2 operated in a second operation mode different from the first operation mode. At least one traveling operation tool 30A among the plurality of traveling operation tools 30A is a third traveling operation tool 30A3 operated in a third operation mode different from the first operation mode and the second operation mode. be.

At least one work system operation tool 30B among the plurality of work system operation tools 30B is a first work operation tool 30B1 that is operated in the same first operation mode as the first travel operation tool 30A1. At least one work system operation tool 30B among the plurality of work system operation tools 30B is operated in a fourth operation mode different from the first operation mode, the second operation mode, and the third operation mode. 2 work operation tool 30B2. At least one work system operation tool 30B among the plurality of work system operation tools 30B has a fifth operation mode different from the first operation mode, the second operation mode, the third operation mode, and the fourth operation mode. It is a third work manipulator 30B3 that is operated according to the form.

A first operation mode is a rotation operation around a horizontal axis (an axis extending in the width direction of the vehicle body). The first traveling operation tool 30A1, which is operated in the first operation mode, is a rotary dial that rotates around the horizontal axis to perform operations related to traveling. In the case of this embodiment, the first traveling operation tool 30A1 is an accelerator lever 30A1 that increases or decreases the rotation speed of the engine 8. As shown in FIG. The first work manipulator 30B1, which is operated in the first operation mode, is a rotary dial that performs work-related operations by rotating it around the horizontal axis. In this embodiment, the first work manipulator 30B1 is a position control lever 30B1 that adjusts the height of the work device.

A second operation mode is a pressing operation. The second travel operation tool 30A2, which is operated in the second operation mode, is a push button that performs an operation related to travel by pressing. In the case of this embodiment, the second traveling operation tool 30A2 is a rotation speed setting button or the like for setting the rotation speed of the engine 8. FIG.
A third operation mode is a rocking operation about a horizontal axis (an axis extending in the width direction of the vehicle body). The third travel operation tool 30A3 operated in the third operation mode is a travel lever that performs operations related to travel. In the case of the present embodiment, the third travel operation tool 30A3 is a travel speed change lever (shift lever). Specifically, it is a main shift lever that operates the main transmission.

A fourth operation mode is an operation of selectively pressing two operation parts. The second work manipulator 30B2 operated in the fourth operation mode is a seesaw switch that performs work-related operations by selectively pressing two manipulators. In the case of this embodiment, the second work operating tool 30B2 is a pumper switch that raises and lowers the working device.
A fifth operation mode is a rotation operation about a vertical axis (an axis extending in the vertical direction). The third work manipulator 30B3, which is operated in the fifth operation mode, is a rotary dial that performs work-related operations by rotating it around the vertical axis. In the case of this embodiment, the third work operating tool 30B3 is a plowing depth adjustment dial that adjusts the working depth of the working device (plowing depth of the cultivator).

Hereinafter, for convenience of explanation, the operation tools (the first traveling operation tool 30A1 and the first work operation tool 30B1) operated in the first operation mode will be referred to as the "first operation tool 301" and the operation tools operated in the second operation mode. The operating tool (second traveling operating tool 30A2) is referred to as "second operating tool 302", the operating tool (third traveling operating tool 30A3) operated in the third operation mode is referred to as "third operating tool 303", and the fourth operating tool is referred to as "second operating tool 302". The operation tool (second work operation tool 30B2) operated by the operation mode is referred to as "fourth operation tool 304", and the operation tool (third work operation tool 30B3) operated by the fifth operation mode is referred to as "fifth operation tool". 305". In FIGS. 7 and 8, the first to fifth operating tools are denoted by parenthesized reference numerals 301 to 305. FIG.

As shown in FIGS. 4, 7, and 8, of the two first operation tools 301, one of the first operation tools is a first traveling operation tool 30A1, and the other first operation tool is a first operation tool. The operation tool 30B1 is arranged side by side with a gap in the longitudinal direction of the armrest 20. As shown in FIG. One first operating tool (first travel operating tool 30A1) and the other first operating tool (first work operating tool 30B1) are operated in the longitudinal direction (front-rear direction) of armrest 20. As shown in FIG.

The second traveling operation tool 30A2, which is one of the second operating tools 302, is divided into one first operating tool (first traveling operating tool 30A1) and the other first operating tool (first work) in the longitudinal direction of the armrest 20. It is arranged between the operation tools 30B1). The third work manipulator 30B3, which is the fifth manipulator 305, and the first work manipulator 30B1, which is the other first manipulator, are arranged side by side in the longitudinal direction of the armrest 20. As shown in FIG.

That is, the first travel operation tool 30A1, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3 are arranged side by side in the longitudinal direction of the armrest 20 in this order. Specifically, the first travel operation tool 30A1, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3 are arranged in this order from the front to the rear.
In this manner, the manipulators (the first travel manipulator 30A1 and the first work manipulator 30B1) having the same operation mode are arranged separately (separated) in the longitudinal direction of the armrest 20. FIG. In addition, operation tools with different operation modes (first travel operation tool 30A1 and second travel operation tool 30A2, second travel operation tool 30A2 and first work operation tool 30B1, first work operation tool 30B1 and third work operation tool 30B3) ) are arranged side by side in the longitudinal direction of the armrest 20 .

As shown in FIGS. 4, 7, and 8, one first operating tool (first traveling operating tool 30A1), the other first operating tool (first work operating tool 30B1), and a second operating tool (second The traveling operation tool 30A2) is arranged in the second region 21U2 on the other side (right side) of the armrest 20 in the width direction. The fifth operation tool (third work operation tool 30B3) is arranged in the first region 21U1 on one side (left side) of the armrest 20 in the width direction.

The third traveling operation tool 30A is arranged on the driver's seat 10 side (left side). The first travel operation tool 30A1 and the second travel operation tool 30A2 are arranged on the opposite side (right side) of the driver's seat 10 so as to be aligned with the third travel operation tool 30A3 in the width direction of the vehicle body. The second traveling operation tool 30A2 is arranged behind the first traveling operation tool 30A1 (on the other side in the longitudinal direction of the armrest 20).
The first travel operation tool 30A1, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3 are aligned in the longitudinal direction of the armrest 20 on the opposite side (right side) of the driver's seat 10 and on the same curved surface. are placed in In other words, the first travel operation tool 30A1, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3 are arranged side by side along the curved surface of the second region 21U2 of the first upper surface 21U. ing.

As shown in FIG. 4 , the first travel operation tool 30A1 and the third travel operation tool 30A3 are arranged side by side in the width direction of the armrest 20 . In other words, two traveling system operating tools 30A having different operation modes are arranged side by side in the width direction of the armrest 20 .
More specifically, of the plurality of manipulators 30, the manipulators arranged adjacent to each other are manipulators with different manipulation modes. Specifically, the operation tools arranged adjacent to each other in the longitudinal direction of the armrest 20 (the first travel operation tool 30A1 and the second travel operation tool 30A2, the second travel operation tool 30A2 and the first work operation tool 30B1, the first The work manipulator 30B1 and the third work manipulator 30B3) are manipulators with different manipulation modes. In addition, the operation tools arranged adjacent to each other in the width direction of the armrest 20 (first travel operation tool 30A1 and third travel operation tool 30A3, second travel operation tool 30A2 and third travel operation tool 30A3, first work operation tool) 30B1 and the second work manipulator 30B2, and the second work manipulator 30B2 and the third work manipulator 30B3) are manipulators with different manipulation modes.

As shown in FIGS. 4 and 6 to 8, inclined surfaces 28 are provided on the left and rear sides of the third traveling operation tool 30A3. The inclined surface 28 is connected to the second region 21U2 at its lower end and connected to the first region 21U1 at its upper end. The inclined surface 28 has an L shape when viewed from above, and is inclined upward toward the first region 21U1. A portion of the inclined surface 28 provided on the left side of the third traveling operation tool 30A3 is part of the first upright surface 241 . As shown in FIG. 7, the portion of the inclined surface 28 provided behind the third work manipulator 30B3 is part of the second upright surface 242. As shown in FIG. The portion of the inclined surface 28 provided on the left side of the third work manipulator 30B3 is part of the first upright surface 241. As shown in FIG.

The operation tool 30 will be described below.
First, the traveling system operating tool 30A will be described.
As shown in FIGS. 6 to 8, the first traveling operation tool (accelerator lever) 30A1 has a rotating body 31 and a knob 32. As shown in FIGS. The rotating body 31 protrudes upward in an arcuate shape from the upper surface of the armrest 20 in a side view. The knob 32 protrudes from the upper surface of the rotating body 31 . The rotating body 31 is attached so as to be rotatable around a sideways (horizontal) support shaft arranged inside the armrest 20 . By pinching the knob 32 and moving it forward or backward, the rotating body 31 rotates around the support shaft. When the knob 32 is moved forward, the rotation speed of the engine 8 increases. When the knob 32 is moved rearward, the rotation speed of the engine 8 is decreased.

As shown in FIGS. 4, 7, and 8, the second traveling operation tool 30A2 includes a rotation speed setting button 33, a power assist button 34, and a turning assist button 35. As shown in FIGS.
The rotation speed setting button 33 includes a first rotation speed setting button 33A and a second rotation speed setting button 33B. By pressing the first rotation speed setting button 33A, the rotation speed of the engine 8 can be set to a preset first rotation speed. By pressing the second rotation speed setting button 33B, the rotation speed of the engine 8 can be set to a second rotation speed different from the preset first rotation speed.

When the power assist button 34 is pressed, it is possible to suppress fluctuations in the engine speed due to load fluctuations of the work equipment, etc., and to keep the vehicle speed and the speed of the PTO shaft 9 substantially constant.
When the turning assist button 35 is pressed, the engine speed is reduced when the work device is raised, and the work vehicle 1 can be turned at a low speed.
The first rotation speed setting button 33A and the second rotation speed setting button 33B are arranged side by side in the width direction of the armrest 20 . The power assist button 34 and the turning assist button 35 are arranged side by side in the width direction of the armrest 20 . The first rotation speed setting button 33A and the turning assist button 35 are arranged side by side in the longitudinal direction of the armrest 20 . The second rotation speed setting button 33B and the power assist button 34 are arranged side by side in the longitudinal direction of the armrest 20 .

As can be seen from FIGS. 5 to 8, the height of the upper surface of the second traveling operation tool 30A2 (rotation speed setting button 33, power assist button 34, turning assist button 35) is lower than the height of the first area 21U1. That is, a first area 21U1 higher than the upper surface of the second traveling operation tool 30A2 is provided on the driver's seat 10 side of the second traveling operation tool 30A2. This effectively prevents an operator seated in the driver's seat 10 from unintentionally operating the rotation speed setting button 33, the power assist button 34, and the turning assist button 35. - 特許庁

As shown in FIGS. 7 and 8 , the third travel operation tool (travel speed change lever) 30A3 has a grip portion 36 and a swing shaft 37. As shown in FIGS. The swing shaft 37 is inserted into an elongated hole 38 formed in the first region 21U1 of the first upper surface 21U of the armrest 20 and extending in the front-rear direction. The swing shaft 37 can swing back and forth along the long hole 38 . The grip portion 36 is a portion gripped by the driver and is provided above the swing shaft 37 . A clutch button 39 is provided on a side surface (left side surface) of the grip portion 36 on the side of the driver's seat 10 . By pressing the clutch button 39, the swinging operation of the travel speed change lever 30A3 becomes possible. Incidentally, if the transmission is of a continuously variable type, the clutch button 39 can be omitted.

Next, the work system operating tool 30B will be described.
As shown in FIGS. 6 to 8, the first work manipulator (position control lever) 30B1 has a rotating body 40, a knob portion 41, and a lock portion . The rotating body 40 protrudes in an upwardly convex arcuate shape from the upper surface of the armrest 20 in a side view. The knob portion 41 protrudes from the upper surface of the rotating body 40 . The rotating body 40 is attached so as to be rotatable around a sideways (horizontal) support shaft arranged inside the armrest 20 . By pinching the knob 41 and moving it forward or backward, the rotating body 40 rotates around the support shaft. When the knob 41 is moved forward, the lift cylinder 4e of the lifting device 4 is shortened to lower the working device. When the knob 41 is moved rearward, the lift cylinder 4e of the lifting device 4 is extended to raise the working device.

As shown in FIGS. 7 and 8, the lock portion 42 has a cylindrical portion 42a, a shaft portion 42b, and a lock piece 42c. The cylindrical portion 42a is provided on the inner side of the knob portion 41 (on the side of the driver's seat 10). The shaft portion 42b is inserted through the cylindrical portion 42a and is rotatable around the axis. The lock piece 42c is provided on the upper portion of the shaft portion 42b, and can swing forward, backward, or upward with respect to the shaft portion 42b. 4 to 8 show a state in which the locking piece 42c is positioned forward (tilted forward) with respect to the shaft portion 42b. When the lock piece 42c is positioned forward or rearward with respect to the shaft portion 42b, the position of the knob portion 41 is fixed, and movement of the knob portion 41 is prevented. 6, when the locking piece 42c is directed upward (upright) with respect to the shaft portion 42b, the position of the knob portion 41 is released and the knob is held. Movement operation of the part 41 is permitted. The lock portion 42 is arranged on the inner side of the knob portion 41 (on the driver's seat 10 side). Since an operator sitting on the driver's seat 10 extends his fingers from the outside of the vehicle body to operate the knob 41, the locking part 42 arranged on the inside of the vehicle does not interfere with the operation of the knob 41. - 特許庁

As shown in FIGS. 4, 5, and 7, the second work operating tool (pumper switch) 30B2 has a first operating section 43 and a second operating section 44. As shown in FIGS. The pumper switch 30B2 is a seesaw-type switch. When the first operating portion 43 is pressed to turn it on, the second operating portion 44 is turned off. 43 is turned off. When the first operating portion 43 is turned on, the working device is raised, and when the second operating portion 44 is turned on, the working device is lowered.

The pumper switch 30B2 is provided on the side surface of the armrest 20 on the driver's seat 10 side. Specifically, the pumper switch 30B2 is arranged on the inclined surface 23a of the recess 23 formed in the first left side surface 21L of the armrest 20. As shown in FIG. The recess 23 is provided behind the third traveling operation tool 30A3 and in front of the third work operation tool 30B3 in the front-rear direction. Further, the recess 23 is provided at a position overlapping the first work manipulator 30B1 in the front-rear direction.

One operating portion (first operating portion) 43 of the two operating portions of the pumper switch 30B2 is arranged above and in front of the other operating portion (second operating portion) 44 . That is, the pumper switch 30B2 is disposed so as to tilt forward as it goes upward in a side view from the driver's seat 10 side. In addition, the pumper switch 30B2 is arranged so as to be inclined away from the driver's seat 10 (moving to the right) as it goes upward from below.

An operator seated in the driver's seat 10 places the palm of the right hand on the first upper surface 21U of the armrest 20 and operates the pump switch 30B2 with the thumb. By arranging the pumper switch 30B2 in a tilted manner, the two operating portions 43 and 44 of the pumper switch 30B2 are aligned and tilted along the direction of movement of the thumb. Therefore, the two operating portions 43 and 44 of the pumper switch 30B2 can be easily operated. Further, since the pumper switch 30B2 is provided in the concave portion 23, an erroneous operation due to careless contact of the operator's hand with the pumper switch 30B2 can be prevented.

The third work operating tool (plowing depth adjustment dial) 30B3 can set a deeper plowing depth by rotating the cultivator in one direction around the vertical axis, and can increase the tilling depth by rotating in the other direction around the vertical axis. depth can be set shallow. As shown in FIG. 6, the height of the upper surface of the third work manipulator 30B3 is lower than the height of the first region 21U1. This prevents the operator from unintentionally touching and operating the third work operating tool 30B3.

A position control lever (first work operation tool) 30B1, a pumper switch (second work operation tool) 30B2, and a plowing depth adjustment dial (third work operation tool) 30B3 are arranged behind the traveling system operation tool 30A. . That is, the work system operation tool 30B is arranged at a position closer to the second portion 22 than the traveling system operation tool 30A. Therefore, the worker can smoothly operate the work system operating tool 30B while resting his/her elbow on the second portion 22 . In this way, by arranging the work system operation tool 30B, which is operated more frequently than the traveling system operation tool 30A, at a position near the second part 22 (rear part of the first part 21), the work system operation tool 30B can be operated more frequently. Operability can be improved.

As shown in FIGS. 4 to 8, the upper surface (first upper surface 21U) of the armrest 20 is provided with a partition plate 45 that partitions the first area 21U1 and the second area 21U2. The upper surface of the partition plate 45 is formed into an upwardly convex curved surface. The radius of curvature of the upper surface of partition plate 45 is smaller than the radius of curvature of the upper surface of armrest 20 (the radius of curvature of first region 21U1). Note that the radius of curvature is the radius of curvature in a side view.

As shown in FIG. 8 , the partition plate 45 is formed on an extension line of the upright surface 24 . Specifically, the partition plate 45 is formed on an extension line of the second upright surface 242 . More specifically, one side surface of the partition plate 45 (the side surface opposite to the driver's seat 10) is formed by extending the second upright surface 242 upward.
The partition plate 45 is arranged on the side farther from the driver's seat 10 than the first upright surface 241 . In addition, the partition plate 45 is arranged on the side of the other first operation tool (first work operation tool 30B1) on the driver's seat 10 side. The height of the partition plate 45 is set to be equal to or higher than the height of the knob portion 41 of the first work manipulator 30B1. As a result, it is possible to prevent the operator's hand from carelessly touching the knob 41 and erroneously operating the first work manipulator 30B1. For example, when operating the third traveling operation tool 30A3 in front of the first work operation tool 30B1, it is possible to prevent the first work operation tool 30B1 from being erroneously operated by the hand touching the first work operation tool 30B1.

Next, the second portion 22 of the armrest 20 is described.
As shown in FIG. 2, the second portion 22 overlaps the backrest portion 10a and the seat portion 10b of the driver's seat 10 in the front-rear direction. The front end portion 22a of the second portion 22 overlaps the seat portion 10b of the driver's seat 10 in the front-rear direction and is positioned forward of the backrest portion 10a. A rear end portion (rear end portion of the armrest 20) 22b of the second portion 22 overlaps the backrest portion 10a of the driver's seat 10 in the front-rear direction, and is positioned behind the seat portion 10b.

As shown in FIGS. 4 to 6, the surface of the second portion 22 (hereinafter referred to as "second surface portion 22A") includes a second upper surface 22U, a second lower surface 22D, a second left side 22L, and a second right side. 22R and a second rear surface 22B. The second surface portion 22A (that is, the second upper surface 22U, the second lower surface 22D, the second left side surface 22L, the second right side surface 22R, and the second rear surface 22B) is provided on the other side (rear side) in the longitudinal direction of the armrest 20. It is That is, the second surface portion 22A is provided behind the first surface portion 21A.

As shown in FIGS. 4 to 6 and 9, the second portion 22 of the armrest 20 has a storage portion 25 and a cover 26. As shown in FIGS. The storage portion 25 is formed in the shape of a rectangular parallelepiped with an open top. The cover 26 can open or close the upper part of the storage part 25 . As shown in FIGS. 4, 6, and 9, a hinge 27 is provided on the upper right edge of the second portion 22. As shown in FIGS. The cover 26 is opened and closed using the hinge 27 as a fulcrum. FIG. 9 shows a state in which the cover 26 is opened and the top of the storage section 25 is opened. The drawings of the armrest 20 other than FIG. 9 show a state in which the cover 26 is closed to close the storage section 25 above.

When the cover 26 is closed, the upper surface of the cover 26 becomes the second upper surface 22U. In other words, the second upper surface 22U is provided on the upper surface of the cover 26. As shown in FIG. The second upper surface 22U is provided over the entire length of the armrest 20 in the width direction. As shown in FIG. 5, the front end portion of the second upper surface 22U and the rear end portion of the second region 21U2 of the first upper surface 21U are continuous without a step. That is, the height of the front end portion of the second upper surface 22U and the height of the rear end portion of the second region 21U2 of the first upper surface 21U are the same.

22 U of 2nd upper surfaces comprise the elbow rest part for the operator who sat down on the driver's seat 10 to put an elbow. In other words, the surface (second surface portion 22A) of the second portion 22 is provided with an elbow rest portion 22U on which the operator seated in the driver's seat 10 rests his elbow. The elbow rest portion 22U is made of a cushioning material or the like.
As shown in FIGS. 4 to 6, the second upper surface 22U has a front region 22U1, a rear region 22U2, and an intermediate region 22U3. 4 and 5, the area ahead of the virtual line La is the front area 22U1, the area behind the virtual line Lb is the rear area 22U2, and the area between the virtual line La and the virtual line Lb is the intermediate area 22U3. .

The front region 22U1 is provided in the front portion of the second upper surface 22U, and the front end thereof is continuous with the rear end of the first upper surface 21U. The rear region 22U2 is provided at the rear portion of the second upper surface 22U, and the rear end thereof is continuous with the second rear surface 22B. Middle region 22U3 connects front region 22U1 and rear region 22U2.
The rear region 22U2 is located below the rear end of the first upper surface 21U. The front region 22U1 is located above the rear region 22U2. The height of the front region 22U1 is the same as the height of the rear end of the first region 21U1 of the first upper surface 21U. The intermediate region 22U3 is inclined so as to become lower from the front toward the rear.

Both the front region 22U1 and the rear region 22U2 are horizontal surfaces. The middle region 22U3 is inclined with respect to the front region 22U1 and the rear region 22U2. Both the inclination angle of the front region 22U1 with respect to the intermediate region 22U3 and the inclination angle of the rear region 22U2 with respect to the intermediate region 22U3 are obtuse angles. A boundary portion between the intermediate region 22U3 and the front region 22U1 and a boundary portion between the intermediate region 22U3 and the rear region 22U2 are both formed into smooth curved surfaces.

As shown in FIGS. 4 and 5, in the longitudinal direction of the armrest 20, the length of the rear region 22U2 is longer than the length of the front region 22U1 and the length of the intermediate region 22U3. In addition, in the longitudinal direction of the armrest 20, the length of the rear region 22U2 is longer than the combined length of the front region 22U1 and the intermediate region 22U3.
As shown in FIG. 4, the area of the rear region 22U2 is larger than the area of the front region 22U1. Specifically, the area of the rear region 22U2 is at least twice the area of the front region 22U1. The area of the rear region 22U2 is larger than the combined area of the front region 22U1 and the intermediate region 22U3. The area 22U3 of the intermediate region 22U3 is narrower than the area of the front region 22U1.

As shown in FIG. 4, the front end portion (the front end portion of the second portion 22) 22a of the front region 22U1 is arranged so that the driver's seat 10 side (left side) is larger than the driver's seat 10 side (right side) when viewed from above. is located forward. Specifically, the front end portion 22a of the front region 22U1 is formed in a linear shape that moves rearward as it moves away from the driver's seat 10 side when viewed from above.
When an operator sitting on the driver's seat 10 faces backward and performs work with the working device, the operator twists the body to the right and puts the right elbow on the second upper surface (elbow rest) 22U of the armrest 20. - 特許庁In this posture, since the worker puts his or her weight on the elbow, the right arm is in a state where the elbow is lowered with respect to the palm. Here, since the second upper surface 22U has the above-described three regions, the operator places the palm on the front region 22U1 and tilts the forearm backward along the middle region 22U3 to reach the rear region 22U2. You can bend your elbows. Therefore, the worker's posture is stable and the operator is less likely to get tired.

As shown in FIGS. 4 to 6, the second left side surface 22L faces the driver's seat 10 side (inward of the vehicle body). The second right side surface 22R faces the side opposite to the driver's seat 10 side (outside of the vehicle body). A front end portion of the second left side surface 22L is continuous with a rear end portion of the first left side surface 21L. The front end portion of the second right side surface 22R is continuous with the rear end portion of the first right side surface 21R.
An opening (not shown) is provided in the rear portion of the second lower surface 22D. Harnesses (cables for transmitting electric signals) connected to operating tools and operating switches (described later) provided on the armrest 20 are inserted through the openings.

As shown in FIGS. 5 and 9, a switch device 46 having operation switches is housed in the front portion of the housing portion 25 . The operation switch is a switch for performing operations related to traveling and/or work. The rear part of the storage part 25 is a space S1 in which a smart phone (multifunctional mobile phone) or the like can be stored.
The switch device 46 is provided with a rotary dial 47 and a button switch 48 as operation switches. The switch device 46 is also provided with a USB port 49 for inputting/outputting data and the like. The USB port 49 opens toward the space S1.

The rotary dial 47 is a setting dial for operating the lifting device 4 . The rotary dial 47 includes a first rotary dial 471 , a second rotary dial 472 , a third rotary dial 473 and a fourth rotary dial 474 .
The first rotary dial 471 is a dial for DBM setting. The second rotary dial 472 is a dial for sensitivity adjustment of the lifting device 4 . The third rotary dial 473 is a dial for adjusting the falling speed of the lifting device 4 . The fourth rotating dial 474 is a dial for upper limit regulation of the lifting device 4 . The first rotary dial 471 , the second rotary dial 472 , the third rotary dial 473 , and the fourth rotary dial 474 are arranged side by side in the longitudinal direction of the armrest 20 .

The button switch 48 is a switch for setting screens displayed on the display device 100 . As shown in FIGS. 10 and 11 , the display device 100 is arranged on the side (right side) of the driver's seat 10 . The display device 100 is a touch panel capable of displaying and inputting.
As shown in FIG. 12 , the display device 100 has a display section (display) 101 and a housing 102 that supports the display section 101 . The display device 100 can display a plurality of screens on the display unit 101 in response to the pressing operation of the touch operation on the display unit 101 .

As shown in FIGS. 35A to 35D, the display unit 101 of the display device 100 displays, for example, a menu screen M1, a viewing setting screen M2, a Monroe setting screen M3, and a turning setting screen M4 as multiple screens.
As shown in FIG. 35A, the menu screen M1 is a high-level setting screen, and a plurality of icons (symbols) 201, 202, 203 are displayed on the menu screen M1. By selecting a predetermined icon from the plurality of icons 201, 202, and 203 on the menu screen M1, each of the viewing setting screen M2, the Monroe setting screen M3, and the turning setting screen M4, which are lower setting screens, is displayed on the display unit 101. can be displayed.

For example, when the first icon 201 shown on the menu screen M1 is selected, the browsing setting screen M2 is displayed, and when the second icon 202 is selected, the Monroe setting screen M3 is displayed, and the third icon 203 is displayed. When selected, a turning setting screen M4 is displayed. That is, by operating the menu screen M1, which is a high-level setting screen, the viewing setting screen M2, the Monroe setting screen M3, and the turning setting screen M4, which are low-level setting screens, can be displayed.

As shown in FIG. 35B, the viewing setting screen M2 includes a first setting portion 211 for setting the upper limit of the engine speed and a second setting portion 212 for setting the vehicle speed.
When the first setting section 211 is selected on the viewing setting screen M2, the common input section 220 displayed on the viewing setting screen M2 accepts the input of the upper limit value of the engine speed, and the numerical value of the common input section 220 is changed. By changing it, the upper limit of the engine speed can be set. When the second setting section 212 is selected on the viewing setting screen M2, the common input section 220 accepts the input of the vehicle speed, and by changing the numerical value of the common input section 220, the vehicle speed can be set.

As shown in FIG. 35C, the Monroe setting screen M3 is a screen for setting the tilt of the working device (horizontal control device (Monroe) setting screen), and includes a fixed setting unit 221 for fixing the tilt of the working device, It includes a horizontal setting section 222 that keeps the tilt of the device horizontal, and a tilt setting section 223 that keeps the tilt of the working device parallel to the field (ground).
As shown in FIG. 35D, the turning setting screen M4 is a screen for setting the operation of the work vehicle 1 when turning, and automatically raises the work device when the work vehicle 1 is steered to the left or right. It includes a turning setting part 231 and a reverse setting part 232 that automatically raises the working device when the work vehicle 1 moves backward.

As shown in FIG. 9, the button switch 48 includes a first button 481, a second button 482, a third button 483, a fourth button 484, a fifth button 485, a sixth button 486, a seventh button 487 and an eighth button. Including 488.
The first button 481 , the second button 482 , and the third button 483 are shortcut buttons that cause the display device 100 to perform operations related to settings related to running and/or work. A fourth button 484 , a fifth button 485 , and a sixth button 486 are shortcut buttons that cause the display device 100 to display the state of the working machine. A seventh button 487 and an eighth button 488 are buttons that cause the display device 100 to switch screens.

Specifically, the first button 481 is a shortcut button for setting the vehicle speed. When the first button 481 is pressed, even when the menu screen M1 and other screens are displayed on the display device 45, an operation of displaying a screen related to setting the vehicle speed, that is, the browsing setting screen M2 is executed. After the viewing setting screen M2 is displayed, the second setting section 212 corresponding to the first button 481 is automatically selected. Therefore, by pressing the first button 481, the screen displayed on the display device 45 shifts to the browsing setting screen M2 and the second setting section 212 is selected, so that the vehicle speed can be easily set.

A second button 482 is a shortcut button for setting an operation related to tilting of the working device. When the second button 482 is pressed, even when the menu screen M1 or other screens are displayed on the display device 45, the operation of displaying the screen related to the tilting operation of the working device, that is, the Monroe setting screen M3 is executed. be done. After the Monroe setting screen M3 is displayed, one of the fixed setting section 221, the horizontal setting section 222, and the tilt setting section 223 corresponding to the second button 482 is selected. In this embodiment, among the fixed setting portion 221, the horizontal setting portion 222, and the tilt setting portion 223, a predetermined setting portion corresponding to the current setting is selected.

The third button 483 is a shortcut button for setting the operation of the work vehicle 1 when turning. When the third button 483 is pressed, even when the menu screen M1 or other screens are displayed on the display device 100, a screen for setting the operation of the work vehicle 1 during turning, that is, the turning setting screen M4 is displayed. action is performed. After the turning setting screen M4 is set, either the turning setting section 231 or the reverse setting section 232 corresponding to the third button 483 is selected. In this embodiment, at least the previously set setting portion is selected from among the turning setting portion 231 and the reverse setting portion 232 .

When the fourth button 484, the fifth button 485, or the sixth button 486 is pressed, even when the menu screen M1 or other screens are displayed on the display device 100, the display of the engine speed and the PTO speed can be displayed. , the screen for displaying the height of the working device (the height of the lift arm 4a), that is, the operation of displaying the browsing setting screen M2 is executed.
The seventh button 487 is a button that causes the display unit 101 of the display device 100 to display the home screen or the menu screen M1. The eighth button 488 is a return button for returning the currently displayed screen to the previous screen (switching to the previous screen).

In the above-described embodiment, the viewing setting screen M2, the Monroe setting screen M3, and the turning setting screen M4 are layered as lower setting screens of the menu screen M1, which is a higher setting screen. The screen M2, the Monroe setting screen M3, and the turning setting screen M4 may be in a parallel relationship without a hierarchical relationship (relationship between upper and lower levels), that is, screen transitions in the display device 100 may be parallel.
<Armrest movement mechanism>
As shown in FIGS. 3 and 13, the work vehicle 1 includes a moving mechanism 50 that moves the armrest 20. As shown in FIGS. The moving mechanism 50 is a mechanism that allows the armrest 20 to move in the longitudinal direction and the vertical direction with respect to the driver's seat 10 . The moving mechanism 50 is arranged below the armrest 20 .

The movement mechanism 50 will be described below mainly with reference to FIGS. 13 to 19. FIG.
As shown in FIG. 14 and the like, the moving mechanism 50 has a first member 51 , a second member 52 and an operating lever 53 .
The first member 51 is fixed to the side portion (right side portion) of the driver's seat 10 and extends in the front-rear direction. The first member 51 has a base member 54 , a moving member 55 and a support member 56 .

The base member 54 is fixed to the side of the driver's seat 10 . The base member 54 has a first base member 541 and a second base member 542 .
The first base member 541 is a member having an L-shaped vertical cross section having a horizontal portion 541 a and a vertical portion 541 b, and is fixed to the seat portion 10 b of the driver's seat 10 . The horizontal portion 541 a abuts on the bottom surface of the seat portion 10 b of the driver's seat 10 . The vertical portion 541b is in contact with the right side surface of the seat portion 10b of the driver's seat 10. As shown in FIG.

The second base member 542 is fixed to the surface (right side) of the vertical portion 541b of the first base member 541 on the outer side of the vehicle body. The second foundation member 542 has a reference surface 542a extending in the vertical direction. A screw hole 542b and an elongated hole 542c extending in the vertical direction are formed in the reference surface 542a. The screw hole 542b is formed above the reference surface 542a. The long hole 542c is formed in front of the screw hole 542b and extends below the screw hole 542b.

The moving member 55 is vertically movable with respect to the base member 54 . The moving member 55 has a first moving member 551 , a second moving member 552 and a third moving member 553 . The first moving member 551 has a flat plate shape and is in surface contact with the reference surface 542 a of the second base member 542 . The first moving member 551 has an elongated hole 551a extending in the vertical direction. The elongated hole 551a is provided at a position overlapping the screw hole 542b formed in the reference surface 542a.

A bolt B1 is screwed into the screw hole 542b. A shaft portion of the bolt B1 passes through the elongated hole 551a. When the first moving member 551 is vertically moved, the elongated hole 551a is vertically moved with respect to the bolt B1. As a result, the moving member 55 moves vertically with respect to the base member 54 .
The shaft portion of the bolt B2 is inserted through the long hole 542c of the second base member 542. As shown in FIG. A shaft portion of the bolt B2 is inserted through a through hole formed in the first moving member 551 and screwed to the knob 57 having an internal thread. When the knob 57 is rotated in the direction of tightening the internal thread with respect to the shaft portion of the bolt B2, the first moving member 551 is pressed against the reference surface 542a of the second base member 542. becomes immobile. When the knob 57 is rotated in the direction of loosening the internal thread with respect to the shaft portion of the bolt B2, the first moving member 551 is not pressed against the reference surface 542a of the second base member 542, so the movement of the moving member 55 with respect to the base member 54 is prevented. It becomes possible.

The second moving member 552 is fixed to the upper portion of the first moving member 551 and extends in the front-rear direction. The second moving member 552 has a fixed portion 552a fixed to the first moving member 551, and an extended portion 552b extending horizontally outward from the vehicle body from the fixed portion 552a. A threaded hole is formed in the extended portion 552b, and a bolt B3 is screwed into the threaded hole.
The third moving member 553 connects the first moving member 551 and the second moving member 552 . Specifically, the third moving member 553 connects the surface of the first moving member 551 on the outer side of the vehicle body and the lower surface of the extending portion 552b. A plurality (two) of the third moving members 553 are provided at intervals in the front-rear direction.

The support member 56 is placed on the upper surface of the extended portion 552b of the second moving member 552 and fixed to the upper surface by bolts B3. The support member 56 is a rail extending in the front-rear direction, and supports the second member 52 so as to be movable in the front-rear direction. That is, the support member 56 is fixed to the moving member 55 and supports the second member 52 so as to be movable in the front-rear direction.
The second member 52 is movable in the front-rear direction along the first member 51 . The armrest 20 is fixed to the second member 52 . The second member 52 has a slide member 521 and a mounting member 522 . The slide member 521 extends in the front-rear direction and is slidable in the front-rear direction along the support member (rail) 56 of the first member 51 . Two mounting members 522 are provided with an interval in the front-rear direction. The attachment member 522 has a lower portion fixed to the slide member 521 and an upper portion attached to the second lower surface 22D of the armrest 20 with a bolt B4. Thereby, the second member 52 can move in the front-rear direction with respect to the first member 51 . When the second member 52 moves in the longitudinal direction with respect to the first member 51 , the armrest 20 moves in the longitudinal direction (longitudinal direction of the armrest 20 ) with respect to the driver's seat 10 .

As shown in FIGS. 13 and 14, a fixture 63 is attached to the second lower surface 22D of the armrest 20. As shown in FIGS. Two mounting fixtures 63 are provided at positions corresponding to the mounting members 522 with an interval therebetween in the front-rear direction. By attaching the attachment member 522 to the attachment tool 63, the attachment member 522 can be attached to the second lower surface 22D. A second lower surface 22D of the armrest 20 to which the mounting member 522 is attached is located above the first lower surface 21D. Therefore, it becomes easier to secure an arrangement space for the moving mechanism 50 below the armrest 20 .

The operating lever 53 is arranged below the armrest 20 . The operating lever 53 has a swing fulcrum 531 on the other longitudinal side of the armrest 20 (the second portion 22 side), and a grip portion 532 on one longitudinal side of the armrest 20 (the first portion 21 side). In other words, the operating lever 53 has a swing fulcrum 531 on the rear side and a grip portion 532 on the front side. The operation lever 53 can be moved around the swing fulcrum 531 between a first position (see the phantom line in FIG. 17) where the grip portion 532 is relatively upward and a second position (see the phantom line in FIG. 17) where the grip portion 532 is relatively downward. (See solid line in FIG. 17).

The operation lever 53 allows or prevents movement of the armrest 20 in the longitudinal direction (front-rear direction) by swinging. Specifically, the operation lever 53 allows or prevents movement of the second member 52 with respect to the first member 51 by swinging.
As shown in FIGS. 13, 14, and 17, the operating lever 53 has a swinging body 58 and a rotating body 59. As shown in FIGS.

The rocking body 58 extends in the front-rear direction below the armrest 20 (below the second lower surface 22D). A rear end portion of the rocking body 58 is attached to a rocking fulcrum 531 . The rocking body 58 can rock upward or downward around the rocking fulcrum 531 . As shown in FIG. 15, the swing fulcrum 531 has a cylinder 531a extending in the width direction of the vehicle body, and a center shaft 531b inserted through the inside of the cylinder 531a and rotatable around the axis. The cylinder 531 a is fixed to the mounting member 522 .

A rear end portion of the swinging body 58 is fixed to the central shaft 531b. The center shaft 531b rotates around the axis as the rocking body 58 rocks. A gripping portion 532 to be gripped by an operator is provided at the front portion of the rocking body 58 . The grip portion 532 protrudes and extends forward from the front end portion of the rocking body 58 . The swinging body 58 swings upward around the swing fulcrum 531 by pulling up the grip portion 532 , and swings downward around the swing fulcrum 531 by pushing down the grip portion 532 .

The rotating body 59 rotates about an axis extending in the front-rear direction as the rocking body 58 rocks. As shown in FIGS. 15 and 16 , the rotating body 59 has a first shaft portion 591 and a second shaft portion 592 . The first shaft portion 591 extends in the front-rear direction. The second shaft portion 592 extends laterally (rightward) away from the driver's seat 10 from the front portion of the first shaft portion 591 . The first shaft portion 591 and the second shaft portion 592 are configured integrally. Specifically, the first shaft portion 591 and the second shaft portion 592 are formed by bending one shaft (bar). The rotating body 59 rotates about the axis of the first shaft portion 591 as the rocking body 58 rocks. As shown in FIGS. 14, 17, etc., the swinging body 58 is formed with an insertion portion 58a into which the second shaft portion 592 is inserted. The insertion portion 58a is formed as an elongated hole extending in the longitudinal direction (front-rear direction) of the rocking body 59. As shown in FIG.

As shown in FIGS. 14 to 18 and the like, the rotating body 59 is provided with a claw portion 60 . The claw portion 60 is fixed to the outer peripheral surface of the first shaft portion 591 of the rotating body 59 and rotates as the first shaft portion 591 rotates about the axis. The claw portion 60 has a base end portion (upper portion) fixed to the outer peripheral surface of the first shaft portion 591, and a tip portion (lower portion) provided with a protruding portion 60a protruding in a comb shape. A plurality of protrusions 60a (three in the present embodiment) are provided at intervals in the front-rear direction. An intermediate portion between the proximal end portion and the distal end portion of the claw portion 60 is curved in a substantially L shape.

As shown in FIG. 15 and the like, the slide member 521 is provided with a shaft support portion 61 that rotatably supports the rotating body 59 . The shaft support portion 61 has a fixed portion 61a and a bearing portion 61b. The fixed portion 61 a is fixed to the upper surface of the slide member 521 . The bearing portion 61b extends outward from the fixed portion 61a. A first shaft portion 591 of the rotating body 59 is inserted into the bearing portion 61b so as to be rotatable about its axis.

As shown in FIGS. 16, 17, etc., the first member 51 has a locking portion 62 into which the claw portion 60 is inserted or removed. The locking portion 62 is fixed to the second moving member 552 of the first member 51 . However, the locking portion 62 may be fixed to another portion of the first member 51 (the support member 56, the first moving member 551, etc.). The locking portion 62 extends outward from the vehicle body from the lower surface of the second moving member 552 . The locking portion 62 has a locking groove 62a. Any one of the plurality of projecting portions 60a of the claw portion 60 is inserted into and removed from the locking groove 62a. A locking hole (long hole) may be provided instead of the locking groove 62a.

When the operating lever 53 is in the second position (see the solid line in FIG. 17) where the grip portion 532 is downward, the projecting portion 60a of the claw portion 60 is inserted into the locking groove 62a of the locking portion 62 of the first member 51. (See projection 60a indicated by solid lines in FIG. 16). As a result, movement of the second member 52 relative to the first member 51 (movement in the front-rear direction) is prevented. Therefore, the armrest 20 is prevented from moving in the front-rear direction (longitudinal direction of the armrest 20).

As indicated by an arrow C2 in FIG. 17, when the operation lever 53 is pulled upward, the swinging body 58 swings upward around the swing fulcrum 531. As shown in FIG. When the rocking body 58 rocks upward, the second shaft portion 592 of the rotating body 59 inserted into the insertion portion 58a of the rocking body 58 is pushed upward. Rotate upward. As a result, the rotating body 59 rotates in one direction (direction of arrow C1 in FIG. 16) around the axis of the first shaft portion 591 . When the rotating body 59 rotates in one direction around the axis of the first shaft portion 591, the claw portion 60 fixed to the outer peripheral surface of the first shaft portion 591 also rotates in one direction around the axis of the first shaft portion 591, The protruding portion 60a of the claw portion 60 is separated from the locking groove 62a of the locking portion 62 (see the protruding portion 60a indicated by the phantom lines in FIG. 16). This allows movement of the second member 52 relative to the first member 51 (movement in the front-rear direction). Therefore, the armrest 20 can move in the front-rear direction (longitudinal direction of the armrest 20).

When the grip portion 532 of the operating lever 53 is grasped and pushed downward, the swinging body 58 swings downward around the swinging fulcrum 531, and the second swinging body 59 inserted into the insertion portion 58a of the swinging body 58 moves downward. Axle 592 is pushed downward. Therefore, the second shaft portion 592 rotates downward around the axis extending in the front-rear direction, and the rotating body 59 rotates in the other direction around the axis of the first shaft portion 591 (opposite direction to the arrow C1 in FIG. 16). As a result, the projecting portion 60 a of the claw portion 60 is inserted into the locking groove 62 a of the locking portion 62 . As a result, the armrest 20 is prevented from moving in the front-rear direction (longitudinal direction of the armrest 20).

The position of the armrest 20 in the front-rear direction can be adjusted by which of the projections 60a of the claw 60 is inserted into the locking groove 62a. For example, if the position of the armrest 20 when the center projection 60a of the three projections 60a of the claw portion 60 is inserted into the locking groove 62a (see FIG. 18(b)) is taken as the reference position, the maximum The position of the armrest 20 when the projecting portion 60a on the front side is inserted into the locking groove 62a (see FIG. 18(c)) is behind the reference position. When the rearmost projecting portion 60a is inserted into the locking groove 62a (see FIG. 18(a)), the position of the armrest 20 is forward of the reference position.

In FIG. 2, an example of the position when the armrest 20 moves forward is indicated by a virtual line 20X, and an example of the position when the armrest 20 moves backward is indicated by a virtual line 20Y. In FIG. 19, imaginary lines 521X and 522X show examples of the positions of the slide member 521 and the mounting member 522 when the armrest 20 moves forward, and the positions of the slide member 521 and the mounting member 522 when the armrest 20 moves backward. An example of the position of 522 is indicated by virtual lines 521Y and 522Y.

Note that the range of movement of the armrest 20 in the front-rear direction can be changed (increased or decreased) as appropriate. The movement range can be changed by increasing the number of protrusions 60a and/or locking grooves 62a, increasing the distance between the protrusions 60a and locking grooves 62a in the front-rear direction, or increasing the number of protrusions 60a and/or locking grooves 62a. It can be done by changing the shape and position. Also, the shape and mounting position of the claw portion 60 and/or the locking portion 62 can be changed.

As shown in FIGS. 3 and 13, a second moving mechanism 70 for moving the driver's seat 10 in the front-rear direction is provided below the seat portion 10b of the driver's seat 10. As shown in FIGS. The second moving mechanism 70 is provided on the side (right side) of the armrest 20 on which the moving mechanism 50 is provided in the width direction of the vehicle body. The second moving mechanism 70 has an upper rail 71 , a lower rail 72 and an operating lever 73 . The upper rail 71 and the lower rail 72 extend in the front-rear direction. The upper rail 71 is attached to a fixed plate 74 fixed to the lower surface of the seat portion 10b of the driver's seat 10. As shown in FIG. The lower rail 72 is attached to a base 75 provided below the driver's seat 10 . The upper rail 71 is movable in the front-rear direction with respect to the lower rail 72 . The operating lever 73 has a swing fulcrum 731 and a grip portion 732 . The operating lever 73 allows or prevents movement of the upper rail 71 with respect to the lower rail 72 by swinging upward or downward about the swing fulcrum 731 . By moving the upper rail 71 in the longitudinal direction with respect to the lower rail 72, the driver's seat 10 can be moved in the longitudinal direction.

As shown in FIG. 3 , the moving mechanism 50 that moves the armrest 20 is arranged on the outer side of the vehicle body with respect to the second moving mechanism 70 . As shown in FIG. 13 , the grip portion 532 of the operating lever 53 is arranged behind the grip portion 732 of the operating lever 73 . A swing fulcrum 531 of the operating lever 53 is arranged behind a swing fulcrum 731 of the operating lever 73 .
The moving mechanism 50 that moves the armrest 20 is a mechanism independent of the second moving mechanism 70 . Thereby, the armrest 20 can be moved in the front-rear direction with respect to the driver's seat 10 . In other words, only the armrest 20 can be moved without moving the driver's seat 10 .

A swivel adjustment lever 76 is provided on the left side of the driver's seat 10, as shown in FIG. By operating the swivel adjustment lever 76, the driver's seat 10 can be rotated leftward or rightward within a predetermined angular range. For example, when a worker sitting on the driver's seat 10 works while looking backward, the driver's seat 10 can be rotated to the right.
<Support member for cabin and display device>
As shown in FIGS. 10 to 12, 36 and 37, the cabin 11 has a plurality of struts 81 erected around the driver's seat 10 and a roof 82 supported on top of the struts 81. ing.

The plurality of struts 81 includes front struts 83L, 83R, rear struts 84L, 84R, and side struts 85L, 85R. The front strut 83L is provided on the front left side of the driver's seat 10. As shown in FIG. The front strut 83R is provided on the front right side of the driver's seat 10. As shown in FIG. The rear strut 84L is provided on the rear left side of the driver's seat 10. As shown in FIG. The rear strut 84R is provided on the rear right side of the driver's seat 10. As shown in FIG. The side struts 85L, 85R are provided on the sides of the driver's seat 10. As shown in FIG. The side strut 85L is provided on the left side of the driver's seat 10 and positioned between the front strut 83L and the rear strut 84L. The side strut 85R is provided on the right side of the driver's seat 10 and positioned between the front strut 83R and the rear strut 84R.

A front window (windshield) is provided between the front strut 83L and the front strut 83R. A side window (side glass) 86 is provided between the side support 85L and the rear support 84L and between the side support 85R and the rear support 84R. A rear window (rear glass) 87 is provided between the rear support 84L and the rear support 84R. A rear window 87 of the cabin 11 is arranged behind the armrest 20 . Doors that can be opened and closed are attached to the side support columns 85L and 85R, and a boarding/alighting opening 88 is provided below the doors.

As shown in FIGS. 10 to 12, 20, and 21, a support member 90 that supports the display device 100 is attached to the side strut 85R. The support member 90 has an upper portion 90a, a lower portion 90b and a front portion 90c. The upper portion 90a and the lower portion 90b are attached to the side struts 85R. The upper portion 90a extends forward from the upper portion of the side strut 85R. The lower portion 90b extends forward from the side strut 85R below the upper portion 90a. The front portion 90c extends vertically and connects the front end portion of the upper portion 90a and the front end portion of the lower portion 90b. The support member 90 is formed in a U shape as a whole.

As shown in FIG. 12, the side strut 85R has a protruding portion 85R1 that protrudes upward from the upper surface of the side console 110 provided on the side (right side) of the driver's seat 10. As shown in FIG. The projecting portion 85R1 is arranged in a height range from the upper surface of the console 110 to the lower surface of the roof 82 (the range indicated by broken lines in FIG. 12).
The upper portion 90a of the support member 90 is arranged above the vertical center of the projecting portion 85R1. The lower portion 90b is arranged below the vertical center of the projecting portion 85R1. However, both the upper portion 90a and the lower portion 90b may be arranged above the vertical center of the projecting portion 85R1.

As shown in FIG. 21, attachments 92 are provided on the upper portion 90a and the lower portion 90b. The fixtures 92 are fixed to the rear ends of the upper portion 90a and the lower portion 90b, respectively. The fixture 92 is attached to the side strut 85R with a bolt or the like. Thereby, the support member 90 is attached to the side strut 85R.
As shown in FIG. 10 , the support member 90 is arranged above the armrest 20 . The lower portion 90 b is arranged above the backrest portion 10 a of the driver's seat 10 . As shown in FIG. 11, the front portion 90c is positioned forward of the front end portion of the armrest 20 in the front-rear direction.

As shown in FIG. 21 , the support member 90 supports the display device 100 via the mounting member 91 . In this embodiment, the display device 100 is supported by the lower portion 90b, but may be supported by the upper portion 90a. Also, two display devices 100 may be supported by the lower part 90b and the upper part 90a, respectively. Moreover, the display device 100 may be supported by the front portion 90c.

The attachment member 91 attaches the display device 100 to the upper part 90a or the lower part 90b. In this embodiment, the attachment member 91 attaches the display device 100 to the lower portion 90b. The attachment member 91 has a first attachment portion 91 a attached to the display device 100 and a second attachment portion 91 b attached to the support member 90 . The first attachment portion 91a is attached to the rear surface of the display device 100 (the surface opposite to the display portion 101). The second attachment portion 91 b is attached to the lower portion 90 b of the support member 90 .

The attachment structure for attaching the display device 100 to the support member 90 has a mechanism (slide mechanism) that supports the display device 100 so as to be slidable in the front-rear direction with respect to the upper portion 90a or the lower portion 90b. Although the structure of the slide mechanism is not particularly limited, for example, as shown in FIG. 21, the second attachment portion 91b may be formed in a C shape. In this case, the upper surface, the lower surface, and the right surface (the surface opposite to the display device 100) of the lower portion 90b (or the upper portion 90a) can be surrounded by the second mounting portion 91b. According to this configuration, the display device 100 can be slid along the lower portion 90b (or the upper portion 90a) together with the second mounting portion 91b, as indicated by arrows and phantom lines in FIG.

As another example of the slide mechanism, a groove extending in the front-rear direction is formed in the upper portion 90a or the lower portion 90b, and the second mounting portion 91b of the mounting member 91 is configured to be movable along the groove. can be adopted. Alternatively, it is possible to employ a configuration in which the second attachment portion 91b of the attachment member 91 is formed in an annular shape surrounding the upper portion 90a or the lower portion 90b.
Moreover, the mounting structure for mounting the display device 100 on the support member 90 preferably has a mechanism (angle adjustment mechanism) capable of changing the mounting angle of the display device 100 with respect to the support member 90 . It is preferable that the angle adjustment mechanism can direct the display unit of the display device 100 toward the front or near the front of the operator seated in the driver's seat 10 . Although the configuration of the angle adjusting mechanism is not particularly limited, for example, a configuration in which the mounting member 91 is provided with a bendable portion (for example, a bellows-like portion) or a rotatable portion can be adopted.

As shown in FIG. 21, the support member 90 is a hollow member having an internal space. Specifically, the support member 90 is formed by bending a square pipe or a round pipe into a U shape. The internal space of the support member 90 constitutes an insertion portion 90d through which a harness (cable for transmitting an electric signal) 93 connected to the display device 100 is inserted. In this embodiment, the insertion portion 90d communicates with the upper portion 90a, the front portion 90c, and the lower portion 90b. However, the insertion portion 90d may be provided in at least one of the upper portion 90a, the lower portion 90b, and the front portion 90c. The insertion portion 90d is opened at the end of the support member 90 (the rear end of the upper portion 90a and the rear end of the lower portion 90b). In other words, the insertion portion 90 d communicates with the opening 94 provided at the end of the support member 90 .

The support member 90 has an extraction portion 90 e for extracting the harness 93 inserted through the insertion portion 90 d toward the display device 100 . The take-out portion 90e is an opening that communicates with the internal space forming the insertion portion 90d. In the case of this embodiment, the take-out portion 90e is provided in each of the upper portion 90a and the lower portion 90b. However, the take-out portion 90e may be provided in at least one of the upper portion 90a, the lower portion 90b, and the front portion 90c as long as it can communicate with the insertion portion 90d. The position and number of the take-out portions 90 e can be set according to the mounting position of the display device 100 with respect to the support member 90 .

As shown in FIG. 24 , the display device 100 may be provided inside the meter panel 19 provided in front of the driver's seat 10 . The meter panel 19 is arranged above the column cover 14 and in front of the steering wheel 12 . The meter panel 19 is provided with an engine tachometer 19a that displays the number of revolutions of the engine 8, a water temperature gauge 19b, a fuel gauge 19c, and a display device 100. FIG. In the illustrated example, the engine tachometer 19a is arranged on the left side of the display device 100, and the water temperature gauge 19b and the fuel gauge 19c are arranged on the right side of the display device 100, but the arrangement may be changed.
<Side console>
As shown in FIGS. 1 , 10 and 11 , a side console 110 is provided on the side (right side) of the driver's seat 10 . The side console 110 is arranged on the lateral side (right side) of the armrest 20 on the outer side of the vehicle body. In other words, the side console 110 is provided on the side of the armrest 20 opposite to the driver's seat 10 side. That is, the armrest 20 is arranged between the side console 110 and the driver's seat 10 . A front end portion of the side console 110 is positioned forward of the driver's seat 10 , and a rear end portion of the side console 110 is positioned rearward of the driver's seat 10 .

As shown in FIGS. 25 to 27, the side console 110 is provided with another operating tool 120 that operates differently from the operating tool 30 provided on the armrest 20. As shown in FIGS. Other operating tools 120 include a first operating lever 121 , a second operating lever 122 , a PTO switch 123 , a DPF regeneration inhibition switch 124 , a first operating switch 125 , a second operating switch 126 and a control switch 127 . Details of the other operation tool 120 will be described later.

The side console 110 has an upper plate 110U and side plates 110S. The upper plate 110U constitutes the upper surface of the side console 110 and extends in the front-rear direction. The upper plate 110U is curved downward from the rear to the front. The side plate 110S extends downward from the edge (left edge) of the upper plate 110U on the driver's seat 10 side. The side plate 110S constitutes the left surface and the front surface of the side console 110. As shown in FIG. The side plate 110S moves away from the driver's seat 10 (outer side of the vehicle body) from the rear to the front. The front portion of the side plate 110S is a curved surface extending from the left rear to the right front.

As shown in FIGS. 25 and 26, a removable lid 111 is provided on the front portion of the side plate 110S. As shown in FIG. 28, a fuse box 112 and a relay box 113 are arranged in a space S2 inside the lid 111 (inside the front portion of the side console 110). The fuse box 112 houses fuses. Relay box 113 houses a relay. The fuses and relays are connected to electric cables routed inside the work vehicle 1 . A stay 114 that supports the fuse box 112 and the relay box 113 is provided inside the lid 111 .

As shown in FIGS. 25 and 26, the upper plate 110U has an outer region 110Ua, an inner region 110Ub, and a front region 110Uc. The outer region 110Ua is a region located on the outer side (right side) of the vehicle body of the upper plate 110U. The inner region 110Ub is a region of the upper plate 110U located on the vehicle body inner side (left side). The outer region 110Ua extends further forward than the inner region 110Ub. The front region 110Uc is a region located in the front portion of the upper plate 110U. The front region 110Uc is a recessed region compared to the outer region 110Ua and the inner region 110Ub. The front region 110Uc is provided in front of the inner region 110Ub. The rear portion of the front region 110Uc is continuous with the front portion of the inner region 110Ub (recessed from the front portion of the inner region 110Ub) with a step. The right rear portion of the front region 110Uc is continuous with the left front portion of the outer region 110Ua with a step (recessed from the left front portion of the outer region 110Ua).

As shown in FIGS. 25 to 27, a first groove 115 and a second groove 116 are provided in the outer region 110Ua. The first groove 115 and the second groove 116 are formed as long holes penetrating the upper plate 110U. The first groove 115 is arranged in front of the second groove 116 . The first groove 115 is composed of a first groove 115A and a first groove 115B extending parallel to each other. The second groove 116 is composed of a second groove 116A and a second groove 116B extending parallel to each other. The first groove 115A is arranged in front of the first groove 115B. The second groove 116A is arranged in front of the second groove 116B.

The first groove 115 and the second groove 116 are arranged so as to gradually separate from the driver's seat 10 (toward the outside of the vehicle body). Specifically, when viewed from above, the first groove 115 extends obliquely outward and forward so as to move forward as the distance from the driver's seat 10 increases. The second groove 116 extends obliquely outward and rearward so as to shift rearward as the distance from the driver's seat 10 increases. Note that the second groove 116 may extend in the width direction of the vehicle body when viewed from above.

A first operating lever 121 and a second operating lever 122 are provided in the outer region 110Ua. The first control lever 121 and the second control lever 122 are hydraulic auxiliary control levers that control the supply of hydraulic oil to the working device. In the case of this embodiment, two of each of the first operating lever 121 and the second operating lever 122 are provided. Specifically, the first operating lever 121 includes a first operating lever 121A and a first operating lever 121B. The second operating lever 122 includes a second operating lever 122A and a second operating lever 122B. In other words, the hydraulic auxiliary control lever is a four-series operation lever. However, the numbers of the first control lever 121 and the number of the second control levers 122 are not limited to two, respectively.

As shown in FIG. 11 , the first operating lever 121 is arranged on the side (right side) of the driver's seat 10 . The first operating lever 121 is arranged in front of the backrest portion 10a in the front-rear direction and at a position overlapping the seat portion 10b. The first operating lever 121 is inserted through the first groove 115 . Specifically, the first operating lever 121A is inserted through the first groove 115A. A first operating lever 121B is inserted through the first groove 115B.
The first operating lever 121 is moved along the first groove 115 between a first position approaching the driver's seat 10 (see the phantom line in FIG. 27) and a second position away from the driver's seat 10 (see the solid line in FIG. 27). It is swingable. In other words, the first groove 115 extends in the swinging direction of the first operating lever 121 .

The second operating lever 122 is inserted through the second groove 116 . Specifically, the second operating lever 122A is inserted through the second groove 116A. A second operating lever 122B is inserted through the second groove 116B. The second operating lever 122 is moved along the second groove 116 between a third position (see the phantom line in FIG. 27) approaching the driver's seat 10 and a fourth position (see the solid line in FIG. 27) away from the driver's seat 10. It is swingable. In other words, the second groove 116 extends in the swinging direction of the second operating lever 122 .

The second operating lever 122 is provided behind the first operating lever 121 . At least part (all or part) of the second control lever 122 is arranged behind the driver's seat 10 in the front-rear direction. In the case of this embodiment, the second control lever 122B is arranged behind the driver's seat 10 in the front-rear direction. As shown in FIG. 11, the second operating lever 122A is arranged at a position overlapping the backrest portion 10a of the driver's seat 10 in the front-rear direction.

As shown in FIG. 27, the distance between the first operating lever 121 at the second position and the second operating lever 122 at the fourth position (the distance in the front-rear direction) is the same as that of the first operating lever at the first position. 121 and the second operating lever 122 at the second position (distance in the front-rear direction). In other words, when the first operating lever 121 and the second operating lever 122 are swung in a direction away from the driver's seat 10 (outer side of the vehicle body), the first operating lever 121 and the second operating lever 122 The distance in the front-to-rear direction between

A cigar socket 117 is provided behind the second groove 116 (behind the second operation lever 122) in the outer region 110Ua.
As shown in FIGS. 25 to 27 and the like, the side console 110 is provided with a strut cover 118 . The column cover 118 is erected upward from the upper plate 110U. The post cover 118 is erected between the first operating lever 121 and the second operating lever 122 (between the first groove 115 and the second groove 116). The strut cover 118 covers the driver's seat 10 side of the side strut 85R. As shown in FIGS. 20, 21 and 23, the post cover 118 has a first portion 118a, a second portion 118b and a third portion 118c. The first part 118a is arranged in front of the side strut 85R. The second portion 118b is arranged behind the side strut 85R. The third portion 118c is arranged to the left of the side support 85R and covers the driver's seat 10 side of the side support 85R.

The side strut 85R is positioned between the first operating lever 121 and the second operating lever 122 (the first groove 115 and the second groove 116) in a state where three sides (front, left, and rear) are covered by the strut cover 118. between).
As shown in FIG. 23, a space S3 is formed between the column cover 118 and the side column 85R. Space S3 is formed between the inner surfaces of first portion 118a, second portion 118b, and third portion 118c of column cover 118 and the outer surface of side column 85R.

As shown in FIGS. 20 and 26, the column cover 118 is formed with a notch 118d. The notch portion 118d is formed to allow the harness 93 to pass through a space S3 formed between the support cover 118 and the side support 85R. The harness 93 electrically connects the equipment inside the cabin 11 and the equipment outside. The notch portion 118d is formed in the first portion 118a of the column cover 118. As shown in FIG.

The cutout portion 118d includes a first cutout portion 118d1 formed in the upper portion of the first portion 118a and a second cutout portion 118d2 formed below the first cutout portion 118d1. As shown in FIGS. 20 and 21, the upper part 90a of the support member 90 is inserted into the first notch 118d1. A lower part 90b of the support member 90 is inserted into the second notch 118d2. The harness 93 extends upward from the outside of the cabin 11 through the internal space S4 of the side strut 85R, exits through a through hole 85Ra (see FIG. 23) formed in the side strut 85R, and extends between the strut cover 118 and the side strut 85R. It is inserted into the space S3 formed between the post 85R. The harness 93 inserted into the space S3 passes through the space S3 to the end portion of the support member 90 (the rear end portion of the upper portion 90a or the lower portion 90a).
0b) into the internal space of the support member 90 (insertion portion 90d). The harness 93 introduced into the internal space (insertion portion 90d) of the support member 90 passes through the cutout portions (first cutout portion 118d, second cutout portion 118d) together with the upper portion 90a and the lower portion 90b, and extends forward. It is taken out from the take-out portion 90 e and connected to the display device 100 .

As shown in FIGS. 25 to 27, in the inner area 110Ub of the upper plate 110U of the side console 110, a plurality of other operating tools 120 are arranged side by side in the front-rear direction. A PTO switch 123 is arranged at the forefront of the inner region 110Ub. The PTO switch 123 is a switch that permits or blocks power transmission from the PTO shaft 9 to the working device. A DPF regeneration inhibition switch 124 is arranged behind the PTO switch 123 . The DPF regeneration prohibition switch 124 is a switch that prohibits regeneration processing of a DPF (Diesel Particulate Filter). A first operation switch 125 is arranged behind the DPF regeneration inhibition switch 124 . The first operation switch 125 is a switch for operating the front wiper and the rear wiper. A second operation switch 126 is arranged behind the first operation switch 125 . The second operation switch 126 is a switch for turning on or off a work light provided on the vehicle body 2 . A control switch 127 is arranged behind the second operation switch 126 . The control switch 127 is a switch for controlling a horizontal control device (Monroe) of the working device. The control switch 127 is arranged at the rearmost part of the inner region 110Ub.

Other operating tools 120 include operating tools provided behind the armrest 20 . Specifically, the control switch 127 is arranged behind the armrest 20 in the front-rear direction. Also, the control switch 127 is arranged behind the driver's seat 10 in the front-rear direction. By arranging the control switch 127 as described above, it becomes possible for an operator seated in the driver's seat 10 to easily operate the horizontal control device (Monroe) while facing backward (diagonally backward).

As shown in FIGS. 25 to 27, the front region 110Uc of the upper plate 110U of the side console 110 is provided with a protruding portion 110d that protrudes in an arc shape when viewed from the side. A groove 110e extending substantially in the front-rear direction is provided in the projecting portion 110d. The groove 110e shifts outward toward the vehicle body toward the front. A sub-transmission lever 128 for operating the sub-transmission is inserted into the groove 110e. That is, the main shift lever (third travel operation tool) 30A3 is provided on the armrest 20, and the sub shift lever 128 is provided on the side console 110. As shown in FIG. The sub-transmission lever 128 can swing substantially in the front-rear direction along the groove 110e. A cover 129 made of resin is attached to the lever shaft of the auxiliary shift lever 128 . A resin cover 129 is arranged inside the side console 110 and covers the groove 110e from below.

An operating lever 130 for a front loader (not shown) is provided at the forefront of the front region 110Uc. A front loader is attached to the front part of the vehicle body 2 as needed. As shown in FIG. 26, the operation lever 130 of the front loader is inserted through a through hole 110f provided in the foremost portion of the front region 110Uc and supported by a stay 114 that supports the fuse box 112 and the relay box 113. When the front loader is not attached to the vehicle body 2, the through hole 110f can be used as a cup holder capable of holding a beverage container or the like.
<Getting on and off steps>
As shown in FIGS. 36 and 37 , an entry/exit step 140 is provided on the side and below the cabin 11 . The boarding/alighting steps 140 are provided on the left and right sides of the cabin 11, respectively. A step 140 for getting on and off is provided between the front wheel 3F and the rear wheel 3R. The boarding/alighting step 140 includes an upper step 141 and a lower step 142 . The upper step 141 is provided below the entrance/exit 88 of the cabin 11 . The lower step 142 is provided below the upper step 141 .

The upper step and the lower step provided on the left side of the cabin 11 are hereinafter referred to as "upper step 141L" and "lower step 142L", respectively. An upper step and a lower step provided on the right side of the cabin 11 are referred to as "upper step 141R" and "lower step 142R", respectively.
As shown in FIGS. 30 and 37, the upper steps 141L and 141R are supported by a support 143 attached to the lower portion of the cabin 11. As shown in FIGS. The positions of the upper steps 141L and 141R with respect to the vehicle body 2 are fixed by a support 143. As shown in FIG. The support 143 has a front support 143a, a rear support 143b and a connecting plate 143c. The front support 143a is connected to the front portion of the upper step 141L and extends upward. The rear support 143b is connected to the rear portion of the upper step 141L and extends upward. The connecting plate 143c connects the front support 143a and the rear support 143b.

As shown in FIG. 36, the lower steps 142L and 142R are arranged at positions shifted outward from the vehicle body with respect to the upper steps 141L and 141R. Specifically, the lower step 142L is arranged at a position shifted to the left with respect to the upper step 141L. The lower step 142R is arranged at a position shifted to the right with respect to the upper step 141R.
As shown in FIG. 29 and the like, the lower step 142L has a first step member 144 and a second step member 145. As shown in FIG.

The first step member 144 has a base portion 144a, a first extension portion 144b, and a second extension portion 144c. The base 144a extends in the front-rear direction. The first extension portion 144b extends outward (to the left) of the vehicle body from the front end portion of the base portion 144a. The second extension portion 144c extends outward (to the left) of the vehicle body from the rear end portion of the base portion 144a.
A plurality of (four in the present embodiment) first through holes 144d are formed in the base portion 144a. 144 d of several 1st through-holes are arrange|positioned at intervals in the front-back direction. A plurality of (two in the present embodiment) second through holes 144e are formed in each of the first extension portion 144b and the second extension portion 144c. The plurality of second through holes 144e are arranged at intervals in the width direction of the vehicle body.

The second step member 145 has a step plate 146 , a front plate 147 provided at the front portion of the step plate 146 , and a rear plate 148 provided at the rear portion of the step plate 146 . The step plate 146 is a rectangular plate on which a worker getting in and out of the cabin 11 puts his/her feet. 29, 30 and 33, the opening provided in the step plate 146 is omitted. The front surface of the front plate 147 is in contact with the rear surface of the first extension portion 144b. The rear surface of the rear plate 148 is in contact with the front surface of the second extension portion 144c.

The front plate 147, the rear plate 148, the base portion 144a, the first extension portion 144b, and the second extension portion 144c constitute a support mechanism that supports the step plate 146 so as to be movable in the front-rear direction. The support mechanism is provided along the side edges (front edge, rear edge, left edge) of the step plate 146 . The upper end (upper edge) of the support mechanism is positioned above the upper surface of the step plate 146 .
A plurality of (three in this embodiment) screw holes 149 are formed in the front plate 147 and the rear plate 148, respectively. The plurality of screw holes 149 are arranged at intervals in the width direction of the vehicle body. The interval (pitch) between the plurality of screw holes 149 is equal to the interval (pitch) between the plurality of second through holes 144e. Thereby, the second through hole 144e and the screw hole 149 can be overlapped. The second through hole 144 e and the screw hole 149 are located above the upper surface of the step plate 146 .

The second step member 145 is attached to the first step member 144 with bolts B5. The second step member 145 is attached to the first step member 144 by overlapping the second through hole 144e of the first extension portion 144b and the screw hole 149 of the front plate 147, After overlapping the screw hole 149 of the rear plate 148, the shaft portion of the bolt B5 is inserted through the second through hole 144e and screwed into the screw hole 149. As shown in FIG. A nut may be screwed onto the shaft portion of the bolt B5 using the screw hole 149 as a through hole.

When attaching the second step member 145 to the first step member 144, the screw hole 149 overlapping the second through hole 144e is displaced and the shaft portion of the bolt B5 is screwed into the second step member 145. The position of the first step member 144 (the position in the width direction of the vehicle body) can be changed. For example, two second through-holes 144e and two of the three threaded holes 149 on the inner side of the vehicle are overlapped and the shaft portion of the bolt B5 is screwed (see the solid line in FIG. 32). In the case where the two through holes 144e and two of the three screw holes 149 on the outer side of the vehicle body are overlapped and the shaft portion of the bolt B5 is screwed (see the phantom line in FIG. 32), the second step member 145 The position of the first step member 144 (the position in the width direction of the vehicle body) is different. in short,
The second step member 145 is movable with respect to the first step member 144 toward the inside of the vehicle body (the side approaching the cabin 11) or the outside of the vehicle body (the side away from the cabin 11).

As shown in FIG. 31 and the like, the first step member 144 is connected to the first support frame 150 . The first support frame 150 supports a urea tank 160 that stores urea water. The first support frame 150 is connected to the clutch housing 6 . However, the first support frame 150 may be connected to the transmission case 7 instead of the clutch housing 6 .

The first support frame 150 has a tank support frame 151 and a connection frame 152 . Support frame 151 supports urea tank 160 . A connection frame 152 connects the tank support frame 151 with the clutch housing 6 . The tank support frame 151 has an outer member 151a, an inner member 151b, a front member 151c, and a rear member 151d. The outer member 151a supports the urea tank 160 on the outer side of the vehicle body. The inner member 151b supports the urea tank 160 on the inner side of the vehicle body. The front member 151 c supports the front portion of the urea tank 160 . The rear member 151 d supports the rear portion of the urea tank 160 . A plurality of (six in this embodiment) third through holes 151e are formed in the external member 151a. The plurality of third through holes 151e are arranged at intervals in the front-rear direction.

As shown in FIGS. 30, 31, and 34, the connection frame 152 extends inward and upward from the inner member 151b of the tank support frame 151. As shown in FIGS. One end side (outer side of the vehicle body) of the connection frame 152 is connected to the inner member 151b. The other end side (vehicle inner side) of the connection frame 152 is connected to the bottom portion of the clutch housing 6 .
As shown in FIG. 29, the first step member 144 is attached to the outer member 151a of the first support frame 150 with bolts B6. The first step member 144 is attached to the external member 151a by overlapping the third through hole 151e of the external member 151a with the first through hole 144d of the base portion 144a, and then inserting the shaft portion of the bolt B6 into the first through hole 144d and the first through hole 144d. 3 through-hole 151e, and screwing a nut N1 onto the shaft. The first through hole 144 d and the third through hole 151 e are located above the upper surface of the step plate 146 .

When attaching the first step member 144 to the outer member 151a of the first support frame 150, by inserting the shaft portion of the bolt B6 while shifting the third through-hole 151e overlapping the first through-hole 144d, The position of the first step member 144 relative to the first support frame 150 (the position in the width direction of the vehicle body) can be changed. For example, when the four first through holes 144d and the front four of the six third through holes 151e are overlapped and the shaft portion of the bolt B6 is inserted (see the phantom line in FIG. 33), When the through-hole 144d and the rear four of the six third through-holes 151e are overlapped and the shaft portion of the bolt B6 is inserted (see the solid line in FIG. 33), the first step member for the first support frame 150 The position of 144 (the position in the front-rear direction) is different. That is, the first step member 144 can move in the front-rear direction with respect to the first support frame 150 . Therefore, the lower step 142</b>L including the first step member 144 can move in the front-rear direction with respect to the first support frame 150 . That is, the lower step 142L becomes movable in the front-rear direction.

Therefore, for example, the position of the lower step 142L in the front-rear direction can be changed according to the type of the rear wheel 3R of the work vehicle 1 . For example, when the rear wheel 3R is a tire, the lower step 142L can be arranged toward the rear, and when the rear wheel 3R is a crawler, the lower step 142L can be arranged toward the front. This prevents the lower step 142L from approaching the rear wheel 3R when the rear wheel 3R is a crawler.

In the above embodiment, the lower step 142L is movable in the longitudinal direction and the width direction of the vehicle body.
As shown in FIG. 31 and the like, the first step member 144 is connected to the second support frame 153 . The second support frame 153 supports a fuel tank 165 that stores fuel. Fuel tank 165 includes a first fuel tank 165L and a second fuel tank 165R. The first fuel tank 165L is arranged on the left side of the clutch housing 6. As shown in FIG. The second fuel tank 165R is arranged on the right side of the clutch housing 6. As shown in FIG.

As shown in FIGS. 31 and 34, the second support frame 153 includes a front support frame 154 and a rear support frame 155. As shown in FIGS. The front support frame 154 has a main frame 154A and a subframe 154B. The main frame 154A extends in the width direction of the vehicle body. The main frame 154A is attached to the bottom of the clutch housing 6 near the center in the width direction of the vehicle body. The left portion of the main frame 154A supports the front bottom portion of the first fuel tank 165L. The right portion of the main frame 154A supports the bottom of the second fuel tank 165R. A forward extending member 157 is attached to the right portion of the main frame 154A. The forward extending member 157 extends forward from the right portion of the main frame 154A. The forward extension member 157 supports the front bottom portion of the second fuel tank 165R. The forward extending member 157 is connected to the front bottom portion of the clutch housing 6 via a connecting member 158 .

The sub-frame 154B is attached to the front portion of the main frame 154A and extends leftward from near the center in the width direction of the vehicle body. The subframe 154B is connected to the first step member 144 via a connecting member 156. As shown in FIG.
The connection member 156 has a connection plate 156A fixed to the left end of the subframe 154B and a stay 156B attached to the connection plate 156A. The stay 156B is attached to the connection plate 156A at one end (inside the vehicle body) and to the first step member 144 at the other end (outside the vehicle body). A through hole is formed in the other end of the stay 156B, and the through hole and the first through hole 144d of the first step member 144 are overlapped and fastened with a bolt and nut.

The rear support frame 155 extends in the width direction of the vehicle body behind the front support frame 154 . The rear support frame 155 has a main frame 155A and a sub-frame 155B. The main frame 155A extends in the width direction of the vehicle body. The main frame 155A is attached to the bottom of the transmission case 7 near the center in the width direction of the vehicle body. The right portion of the main frame 155A supports the rear bottom portion of the second fuel tank 165R. The subframe 155B is attached to the left front portion of the mainframe 155A. The subframe 155B supports the rear bottom of the first fuel tank 165L.

As shown in FIGS. 30 and 37, the fuel filler port 165La of the first fuel tank 165L is provided at a position higher than the urea tank 160 and the upper step 141L. Further, the fuel filler port 165La is provided at a position higher than the front wheel 3F. As shown in FIG. 32, a removable cap 166 is attached to the fuel filler port 165La. The cap 166 is provided with a key for making the cap 166 unremovable. The fuel filler port 165La is provided at the tip of a fuel filler pipe 167 extending from the first fuel tank 165L. The fuel supply pipe 167 is configured by connecting a plurality of pipes, and has a connecting portion 167a that connects the plurality of pipes. A connecting portion 167a of the fuel supply pipe 167 is covered with a connecting plate 143c of the support 143 that supports the upper step 141L. As a result, the foot or the like of an operator getting into and out of the cabin 11 is prevented from hitting the connecting portion 167 a of the fuel supply pipe 167 .

As shown in FIGS. 36 and 37, the supply port 160a of the urea tank 160 is arranged in front of the upper step 141L and the lower step 142L. Further, the supply port 160a is arranged at a position higher than the lower step 142L and at substantially the same height as the upper step 141L.
38-45 are diagrams showing another embodiment of the boarding/alighting step 140. FIG.

38 to 45, the boarding/alighting step 140 of another embodiment will be described below, but the description will focus on the configuration different from that of the boarding/alighting step 140 described above, and part or all of the common configuration will be omitted. do.
38 to 45 show the configuration of the lower step 142 of the step 140 for getting on and off. Specifically, the configuration of the lower step 142L provided on the left side of the cabin 11 is shown. However, the same configuration can be adopted for the lower step 142R provided on the right side of the cabin 11 as well.

The lower step 142L has a first step member 144 and a second step member 145. As shown in FIG. As described above, the first step member 144 is connected to the first support frame 150 and the second support frame 153 (see FIG. 31). A second step member 145 is attached to the first step member 144 .
As shown in FIGS. 38, 39, 41, etc., the first step member 144 has a base portion 144a, a first extension portion 144b, and a second extension portion 144c. The base 144a extends in the front-rear direction. A stay 156B of a connection member 156 connected to the second support frame 153 is fixed to the base portion 144a. The first extension portion 144b extends outward (to the left) of the vehicle body from the front end portion of the base portion 144a. The second extension portion 144c extends outward (to the left) of the vehicle body from the rear end portion of the base portion 144a. A plurality of (three in the present embodiment) first through holes 144d are formed in the base portion 144a. 144 d of several 1st through-holes are arrange|positioned at intervals in the front-back direction. A plurality of (two in the present embodiment) second through holes 144e are formed in each of the first extension portion 144b and the second extension portion 144c. The plurality of second through holes 144e are arranged at intervals in the width direction of the vehicle body. The second through hole 144e is provided above a vertical middle position of the first extension portion 144b and a vertical middle position of the second extension portion 144c.

As shown in FIGS. 38 to 41 and the like, a first restricting piece 401 is provided below the first extension portion 144b. The first restricting piece 401 extends rearward from the outer end side (outer side of the vehicle body) of the first extension portion 144b. A second restricting piece 402 is provided below the second extension portion 144c. The second restricting piece 402 extends forward from the outer end side (outer side of the vehicle body) of the second extension portion 144c. The first restricting piece 401 and the second restricting piece 402 extend toward each other.

As shown in FIGS. 38, 39, and 42, the second step member 145 includes a step plate 146, a front plate 147 provided in front of the step plate 146, and a front plate 147 provided in the rear portion of the step plate 146. a rear plate 148; The front surface of the front plate 147 is in contact with the rear surface of the first extension portion 144b. The rear surface of the rear plate 148 is in contact with the front surface of the second extension portion 144c.
The front plate 147, the rear plate 148, the base portion 144a, the first extension portion 144b, and the second extension portion 144c constitute a support mechanism that supports the step plate 146 so as to be movable in the front-rear direction.

A plurality of (three in this embodiment) screw holes 149 are formed in the front plate 147 and the rear plate 148, respectively. The plurality of screw holes 149 are arranged at intervals in the width direction of the vehicle body. The interval (pitch) between the plurality of screw holes 149 is equal to the interval (pitch) between the plurality of second through holes 144e. Thereby, the second through hole 144e and the screw hole 149 can be overlapped. The screw hole 149 is provided above the middle position in the vertical direction of the front plate 147 and the middle position in the vertical direction of the rear plate 148 .

As shown in FIGS. 38, 40, 42, etc., a first upper piece 403 is provided on the upper portion of the front plate 147. As shown in FIGS. The first upper piece 403 extends forward from the vehicle body inner side (right portion) of the front plate 147 . A second upper piece 404 is provided on the upper portion of the rear plate 148 . The second upper piece 404 extends rearward from the vehicle body inner side (right portion) of the rear plate 148 . The first upper piece 403 and the second upper piece 404 extend away from each other. The first upper piece 403 and the second upper piece 404 are arranged above the step plate 146 . The first upper piece 403 is arranged above the first extension portion 144b. The second upper piece 404 is arranged above the second extension portion 144c.

As shown in FIGS. 39, 42, and 43, a first projecting portion 405 is provided on the lower portion of the front plate 147. As shown in FIGS. The first protruding portion 405 protrudes downward from the vehicle body inner side (right portion) of the front plate 147 . A second projecting portion 406 is provided on the lower portion of the rear plate 148 . The second protrusion 406 protrudes downward from the vehicle body inner side (right portion) of the rear plate 148 . The first projecting portion 405 and the second projecting portion 406 project downward from the step plate 146 . The lower end of the first projecting portion 405 protrudes below the upper end of the first restricting piece 401 . The lower end of the second protrusion 406 protrudes below the upper end of the second restricting piece 402 .

As shown in FIGS. 38-40 and 43, the second step member 145 is attached to the first step member 144 with bolts B5. The second step member 145 is attached to the first step member 144 by overlapping the second through hole 144e of the first extension portion 144b and the screw hole 149 of the front plate 147, and then connecting the second through hole 144e of the second extension portion 144c. After overlapping the screw hole 149 of the rear plate 148, the shaft portion of the bolt B5 is inserted through the second through hole 144e and screwed into the screw hole 149. As shown in FIG. A nut may be screwed onto the shaft portion of the bolt B5 using the screw hole 149 as a through hole.

The second through hole 144 e of the first step member 144 and the screw hole 149 of the second step member 145 constitute a mounting portion 407 for mounting the second step member 145 to the first step member 144 . Mounting portion 407 includes a plurality of mounting portions 407 arranged in the width direction of the vehicle body. That is, the second step member 145 is attached to the first step member 144 at a plurality of attachment portions 407 arranged in the width direction of the vehicle body. The number of mounting portions 407 is the same as the number of second through holes 144e arranged in the width direction of the vehicle body. In the case of the present embodiment, the number of second through holes 144e arranged in the vehicle width direction is two, so the number of mounting portions 407 arranged in the vehicle width direction is also two. However, the number of mounting portions 407 arranged in the width direction of the vehicle body may be three or more.

As shown in FIGS. 43 and 44, when the second step member 145 is attached to the first step member 144, the screw hole 149 overlapping the second through hole 144e is displaced and the shaft portion of the bolt B5 is screwed. By combining them, the position of the first step member 144 with respect to the second step member 145 (the position in the width direction of the vehicle body) can be changed.
The first restricting piece 401 , the second restricting piece 402 , the first projecting portion 405 and the second projecting portion 406 constitute a movement restricting portion 408 that restricts movement of the first step member 144 with respect to the second step member 145 . . The movement restricting portion 408 is attached by a plurality of attachment portions 407 arranged in the width direction of the vehicle body when the second step member 145 is moved to the outside of the vehicle body (the side away from the cabin) with respect to the first step member 144. prevents movement to a position in which it is impossible to

Specifically, when an attempt is made to move the second step member 145 outward from the vehicle body (in the direction of arrow B1) with respect to the first step member 144 from the state shown in FIG. It interferes with the piece 401, and the second projecting portion 406 interferes with the second restricting piece 402 (see FIG. 45). This prevents the second step member 145 from moving outward from the vehicle body. When attempting to attach the second step member 145 to the first step member 144 at the position indicated by the phantom lines in FIG. . However, as described above, the second step member 145 is prevented from moving to the position shown in FIG. I can't. Thus, when the second step member 145 is attached to the first step member 144, it cannot be attached at only one of the plurality of attachment portions 407. FIG.

As described above, the movement restricting portion 408 regulates the outward movement of the second step member 145 with respect to the first step member 144 to a position where it can be attached by the plurality of attachment portions 407 arranged in the width direction of the vehicle body. Movement (movement from the position shown in FIG. 44 to the position shown in FIG. 43) is permitted, but movement to a position where attachment by a plurality of mounting portions 407 arranged in the width direction of the vehicle body becomes impossible (movement from the position shown in FIG. 43 to the position shown in FIG. 45). position) is blocked.

As a result, the second step member 145 is attached to the first step member 144 by a plurality of attachment portions 407 aligned in the width direction of the vehicle body. Therefore, insufficient mounting strength of the second step member 145 to the first step member 144 can be avoided, and the second step member 145 can be prevented from falling off from the first step member 144 .

The first upper piece 403 and the second upper piece 404 of the second step member 145 constitute an orientation regulating portion 409 that regulates the vertical orientation with respect to the first step member 144 . As shown in FIGS. 38 and 40, when the second step member 145 is attached to the first step member 144, the first upper piece 403 and the second upper piece 404 are positioned above the second step member 145. (upward) (see FIGS. 38 to 40), the first upper piece 403 does not interfere with the first extending portion 144b, and the second upper piece 404 does not interfere with the second extending portion 144c. Therefore, the second through-hole 144 e and the screw hole 149 can be overlapped, and the bolt B<b>5 can be screwed into the screw hole 149 . That is, the second step member 1 with respect to the first step member 144
45 can be attached. On the other hand, when the first upper piece 403 and the second upper piece 404 are directed (downward) to be positioned below the second step member 145, the first upper piece 403 interferes with the first extension portion 144b, Since the second upper piece 404 interferes with the second extension portion 144c, the second through hole 144e and the threaded hole 149 cannot be overlapped, and the bolt B5 cannot be screwed into the threaded hole 149. In other words, the second step member 145 cannot be attached to the first step member 144.

Thus, when the second step member 145 is attached to the first step member 144, the orientation regulating portion 409 can prevent the second step member 145 from being erroneously attached with the vertical direction reversed. can.
Also, the orientation regulating portion 409 (the first upper piece 403 and the second upper piece 404 ) prevents the downward movement of the second step member 145 with respect to the first step member 144 . Specifically, when the second step member 145 is attached to the first step member 144 (see FIGS. 38 to 40), even if the bolt B5 is removed or broken, the first upper piece 403 is It hooks on the first extension portion 144b, and the second upper piece 404 hooks on the second extension portion 144c. Therefore, it is possible to prevent the second step member 145 from falling off the first step member 144 .
<effect>
The work vehicle described above has the following effects.

The work vehicle 1 includes a driver's seat 10, a first surface portion 21A provided on the side of the driver's seat 10 and provided with an operation tool 30, and a first surface portion 21A for a worker sitting on the driver's seat 10 to rest his elbows. and an armrest 20 having two surface portions 22A, and the operation tools 30 are provided on one side in the longitudinal direction of the armrest 20 on the first surface portion 21A, and a plurality of traveling system operation tools 30A for performing operations related to traveling. , and a plurality of work system operation tools 30B provided on the other side in the longitudinal direction of the armrest 20 on the first surface portion 21A and performing operations related to work.

According to this configuration, the traveling system operation tool 30A for performing operation related to traveling and the work system operation tool 30B for performing operation related to work are separately provided on one side and the other side of the armrest 20 in the longitudinal direction. It is possible to easily recognize the positions of the traveling system operation tool 30A and the work system operation tool 30B and operate them without error, which is excellent in operability.
At least one traveling operation tool among the plurality of traveling operation tools 30A is the first traveling operation tool 30A1 operated in the first operation mode, and at least one traveling operation tool among the plurality of work operation tools 30B. The work system operation tool is the first work operation tool 30B1 operated in the same first operation mode as the first traveling operation tool 30A1.

According to this configuration, since the first travel operation tool 30A1 and the first work operation tool 30B1 that are operated in the same first operation mode are arranged at separate positions, either one of the operation tools (first travel operation It is possible to prevent the operation of the tool 30A1 or the first work operation tool 30B1 from affecting the operation of the other operation tool (such as unintentional contact).
In addition, at least one of the plurality of traveling system operating tools 30A is a second traveling operating tool 30A2 operated in a second operating mode different from the first operating mode, and is a second traveling operating tool. The tool 30A2 is arranged between the first travel operation tool 30A1 and the first work operation tool 30B1.

According to this configuration, the second traveling operating tool 30A2 operated in the different second operating mode is placed between the first traveling operating tool 30A1 and the first work operating tool 30B1 operated in the same first operating mode. are arranged so that each operation tool can be operated accurately without confusion. In other words, if manipulators with the same operation mode are arranged side by side, there is a risk that the manipulators will be confused and erroneously operated. By arranging them, it is possible to prevent the manipulation tool from being confused and operated.

At least one of the plurality of traveling operation tools 30A is a third traveling operation tool 30A3 operated in a third operation mode different from the first operation mode and the second operation mode. be.
According to this configuration, the operability of the three types of traveling operation tools (the first traveling operation tool 30A1, the second traveling operating tool 30A2, and the third traveling operating tool 30A3) having different operation modes is improved.

The first travel operation tool 30A1 is a rotary dial that performs an operation related to travel by rotating around the horizontal axis, the second travel operation tool 30A2 is a push button that performs an operation related to travel by pressing, and is a third travel operation. The tool 30A3 is a travel lever that swings to perform an operation related to travel.
According to this configuration, the operation modes of the first traveling operation tool 30A1, the second traveling operating tool 30A2, and the third traveling operating tool 30A3 are greatly different. By arranging the traveling operation tool 30A2 and the third traveling operation tool 30A3 side by side in the longitudinal direction of the armrest 20, it is possible to improve the operability and prevent the operation tools from being mixed up.

The third traveling operation tool 30A3 is arranged on the side of the driver's seat 10, and the first traveling operation tool 30A1 and the second traveling operation tool 30A2 are arranged on the opposite side of the driver's seat 10 so as to be aligned with the third traveling operation tool 30A3. The second traveling operation tool 30A2 is arranged on the other longitudinal direction side of the first traveling operation tool 30A1.
According to this configuration, the operability of the third travel operation tool 30A3 is excellent, and the operability is improved by collectively arranging the first travel operation tool 30A1, the second travel operation tool 30A2, and the third travel operation tool 30A3. excellent placement.

Further, at least one work system operation tool among the plurality of work system operation tools 30B is operated in a fourth operation mode different from the first operation mode, the second operation mode, and the third operation mode. The first work operation tool 30B1 is provided on the upper surface of the armrest 20 (first upper surface 21U), and the second work operation tool 30B2 is provided on the side surface of the armrest 20 on the side of the driver's seat 10 (first work operation tool 30B2). provided on the left side surface 21L).

According to this configuration, the first work manipulator 30B1 and the second work manipulator 30B2, which are the same work system manipulator, are placed on the driver's seat 10 on different surfaces of the armrest 20 (upper surface 21U and side surface 21L on the driver's seat 10 side). , the operability of the first work manipulator 30B1 and the second work manipulator 30B2 is excellent.
Further, at least one work system operation tool among the plurality of work system operation tools 30B has a fifth operation mode different from the first operation mode, the second operation mode, the third operation mode, and the fourth operation mode. It is a third work manipulator 30B3 that is operated according to the shape, and the third work manipulator 30B3 is provided side by side in the longitudinal direction of the first work manipulator 30B1 and the armrest 20. FIG.

According to this configuration, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3, which are operated in different operation modes, are arranged side by side in the longitudinal direction of the armrest 20. FIG. Therefore, it is possible to prevent the operation of one of the three types of operation tools from affecting the operation of the other two operation tools (such as unintentional contact). Further, it is possible to prevent operation tools arranged side by side in the longitudinal direction of the armrest 20 from being confused and operated.

The second work operating tool 30B2 is a seesaw switch that performs work-related operations by selectively pressing two operating parts, and the third work operating tool 30B3 performs work-related operations by rotating around the vertical axis. Dial.
According to this configuration, since the operation modes of the second work manipulation tool 30B2 and the third work manipulation tool 30B3 are significantly different, the second work manipulation tool 30B2 and the third work manipulation tool 30B3, which are the same work-related manipulators, can be positioned close to each other. While the operability is improved by arranging the two operation tools at the same time, it is possible to prevent the two operation tools from being confused and operated.

In addition, the first travel operation tool 30A1, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3 are arranged on the side opposite to the driver's seat 10 in the longitudinal direction and substantially on the same curved surface. It is
According to this configuration, the operability of the first travel operation tool 30A1, the second travel operation tool 30A2, the first work operation tool 30B1, and the third work operation tool 30B3 is excellent.

Further, the operation tools 30 arranged adjacent to each other are operation tools having operation modes different from each other.
According to this configuration, when one of the adjacently arranged operating tools is operated, the other operating tool may be unintentionally touched, or the adjacently arranged operating tools 30 may be confused. It can effectively prevent erroneous operation.
In addition, the work vehicle 1 includes a driver's seat 10, a first surface portion 21A provided on the side of the driver's seat 10 and provided with an operation tool 30, and a place for a worker sitting on the driver's seat 10 to rest his or her elbows. and an armrest 20 having a second surface portion 22A, and the operation tool 30 is arranged on one side of the first surface portion 21A in the longitudinal direction of the armrest 20 and is operated in the longitudinal direction in the first operation mode. one first operation tool 30A1, the other first operation tool 30B1 arranged on the other side in the longitudinal direction of the armrest 20 on the first surface portion 21A and operated in the longitudinal direction in the first operation mode; a second manipulator 302 disposed between one first manipulator 30A1 and the other first manipulator 30B1 in the longitudinal direction and operated in a second operation mode different from the first operation mode; include.

According to this configuration, between one first operation tool 30A1 and the other first operation tool 30B1 operated in the longitudinal direction of the armrest 20 in the first operation mode, a second operation tool different from the first operation mode is provided. A second operating tool 302 that is operated in two operating modes is arranged. Therefore, when operating one or the other of the first manipulating tools 30A1 or 30B1, there is no fear of unintentionally contacting the other or the one of the first manipulating tools 30B1 or 30A1, resulting in excellent operability.

Further, the third operating tool 303 is operated in the longitudinal direction in a third operating mode different from the first operating mode and the second operating mode. The first operating tool 30A1 on one side, the first operating tool 30B1 on the other side, and the second operating tool 302 on the other side are arranged on the other side in the width direction of the armrest 20 .
According to this configuration, the third operation tool 303 is operated in the longitudinal direction in the third operation mode different from the first operation mode and the second operation mode, the first operation tool 30A1 on one side, and the The first operation tool 30B1 and the second operation tool 302 are arranged separately on one side and the other side in the width direction of the armrest 20 . Therefore, when operating the third operation tool 303 that is operated in the longitudinal direction of the armrest 20, it comes into contact with one first operation tool 30A1 and the other first operation tool 30B1 that are similarly operated in the longitudinal direction of the armrest 20. can be prevented.

A first region 21U1 and a second region 21U2 recessed with respect to the first region 21U1 are formed on the upper surface (first upper surface 21U) of the armrest 20. The first operating tool 30A1 on one side, the first operating tool 30B1 on the other side, and the second operating tool 302 are placed in the second area 21U2.
According to this configuration, when operating the third operation tool 303 that is operated in the longitudinal direction of the armrest 20, one first operation tool 30A1 that is similarly operated in the longitudinal direction of the armrest 20 and the other first operation tool 30A1 are operated. Contact with 30B1 is more reliably prevented.

A partition plate 45 that partitions the first region 21U1 and the second region 21U2 is projected from the upper surface (first upper surface 21U) of the armrest 20, and the partition plate 45 serves as the other first operation tool. It is arranged on the side of 30B1.
According to this configuration, when operating the third operation tool 303 arranged in the first region 21U1, unintentional contact with the other first operation tool 30B1 is prevented.

It also has an upright surface 24 that rises from the second area 21U2 toward the first area 21U1, and the partition plate 45 is formed on an extension line of the upright surface 24. As shown in FIG.
According to this configuration, the partition plate 24 can be arranged close to the other first manipulating tool 30B1, so that unintended contact with the other first manipulating tool 30B1 can be effectively prevented.
In addition, there is an upright surface 24 that rises from the second area 21U2 toward the first area 21U1. The partition plate 45 is arranged on the extension line of the second upright surface 242 and on the side of the other first operation tool 30B1.

According to this configuration, the partition plate 24 can be arranged close to the other first manipulating tool 30B1, so that unintended contact with the other first manipulating tool 30B1 can be effectively prevented.
The upper surface of the partition plate 45 is formed into an upwardly convex curved surface.
According to this configuration, the partition plate 45 can prevent unintentional contact with the other first operation tool 30B1 and pressure and injury due to contact with the partition plate 45 .

The upper surface (first upper surface 21U) of armrest 20 is formed into an upwardly convex curved surface, and the radius of curvature of the upper surface of partition plate 45 is smaller than the radius of curvature of upper surface 21U of armrest 20 .
According to this configuration, since the upper surface of the partition plate 45 can be formed to protrude in an arc from the upper surface 21U of the armrest 20, unintended contact with the other first operation tool 30B1 or contact with the partition plate 45 can be prevented. It can effectively prevent the pressure and injury caused by

In addition, the first operation tool 30A1 on one side and the first operation tool 30B1 on the other side are rotary dials that are operated by rotating around the horizontal axis, and the second operation tool 302 is a push button that is operated by pressing, The third operation tool 303 is a rocking lever that is operated by rocking.
According to this configuration, the second operating tool 30A1, which is a rotary dial operated by rotating about the horizontal axis, and the first operating tool 30B1, which is operated by pressing, are placed between the first operating tool 30A1 and the first operating tool 30B1. An operating tool 302 is arranged. Therefore, the rotation operation of one first operation tool 30A1 and the rotation operation of the other first operation tool 30B1 can be performed at positions separated from each other. Further, since the third manipulating tool 303, which is a swing lever that is operated by swinging, is arranged in a region (second region) different from the one first manipulating tool 30A1 and the other first manipulating tool 30B1, It has excellent operability and prevents erroneous operation.

Further, the armrest 20 is arranged on the side surface (first left side surface 21L) of the armrest 20 on the side of the driver's seat 10 and is operated in a fourth operation mode different from the first operation mode, the second operation mode, and the third operation mode. The fourth operation tool 304 is a seesaw switch that performs operations related to work by selectively pressing two operation parts. ) 43 is arranged above and in front of the other operating portion (second operating portion) 44 .

According to this configuration, the fourth operation tool 304 inclines forward as it goes upward in a side view from the driver's seat 10 side. Therefore, when an operator sitting in the driver's seat 10 places one hand on the armrest 20 and operates the fourth operation tool 304 with the thumb, one operation part 43 and the other operation part 44 of the fourth operation tool 304 are arranged along the direction of movement of the thumb, resulting in good operability.

A side surface 21L of the armrest 20 on the side of the driver's seat 10 is formed with a recess 23 having an inclined surface 23a that is inclined away from the driver's seat 10 as it goes upward from below. It is arranged on the surface 23a.
According to this configuration, when an operator seated in the driver's seat 10 places one hand on the armrest 20 and operates the fourth operation tool 304 with the thumb, one operation part 43 and the other operation part 43 of the fourth operation tool 304 are operated. Since the direction of inclination of the operating portion 44 is along the direction of movement of the thumb, operability is improved. Further, since the fourth operation tool 304 is provided in the concave portion 23, it is possible to prevent erroneous operation due to careless contact with the operator's hand.

In addition, the work vehicle 1 includes a driver's seat 10, an armrest 20 provided on the side of the driver's seat 10, a display device 100 capable of making settings related to traveling and/or work, and a display device 100 provided on the armrest 20. and shortcut buttons 481 to 486 for executing operations related to settings in .
According to this configuration, since shortcut buttons 481 to 486 are provided on the armrest 20 provided on the side of the driver's seat 10, a worker sitting on the driver's seat 10 with his arms on the armrest 20 can use the display device Shortcut buttons 481 to 486 for executing operations related to setting 100 can be easily operated.

Further, the display device 100 can display a plurality of setting screens M2 to M4 relating to settings, and the shortcut buttons 481 to 483 display the predetermined setting screen among the plurality of setting screens M2 to M4. let it run.
According to this configuration, when a plurality of setting screens M2 to M4 can be displayed, the operation of displaying a predetermined setting screen among the plurality of setting screens M2 to M4 is operated by operating the shortcut buttons 481 to 483. can be executed well.

Further, the display device 100 can display a high-level setting screen M1 regarding settings, and low-level setting screens M2 to M4 that are displayed based on operations on the high-level setting screen M1. The operation of displaying the screens M2 to M4 is executed.
According to this configuration, when the display device 100 is capable of displaying the upper setting screen M1 and the lower setting screens M2 to M4 that are in series, the plurality of setting screens M2 to M4 can be displayed by operating the shortcut buttons 481 to 483. Among them, the operation of displaying the lower setting screen can be executed with good operability.

The armrest 20 also has a storage section 25 for storing the switch device 46 provided with shortcut buttons 481 to 486, and a cover 26 capable of opening or closing the upper side of the storage section 25 .
According to this configuration, when the shortcut buttons 481 to 486 are not used, the cover 26 is closed to prevent accidental contact with the shortcut buttons, thereby preventing unintentional operation of the shortcut buttons. be prevented. Also, the upper surface of the cover 26 can be used as an elbow rest.

The switch device 46 is also provided with a setting dial 47 for operating the lifting device 4 .
According to this configuration, the setting dial 47 for operating the lifting device 4 can be accommodated in the storage portion 25 of the armrest 20 .
A meter panel 19 is provided in front of the driver's seat 10 , and the display device 100 is provided inside the meter panel 19 .

According to this configuration, the display device 100 can be visually recognized together with the meter panel 19, so visibility is excellent. In addition, it is not necessary to secure a space around the driver's seat 10 in addition to the meter panel 19 for providing the display device 100 .
In addition, the work vehicle 1 has a driver's seat 10 and an operation tool 30 provided on one side of the driver's seat 10 for performing operations related to traveling or work on one side in the longitudinal direction, and a driver on the other side in the longitudinal direction. An armrest 20 having an elbow rest portion 22U for placing an elbow, and an operation lever 53 that allows or prevents longitudinal movement of the armrest 20 by swinging. The operation lever 53 is arranged below the armrest 20 and , has a swing fulcrum 531 on the other side in the longitudinal direction, and a grip portion 532 on the one side in the longitudinal direction.

According to this configuration, an operator seated on the driver's seat 10 can grasp the grip portion 532 of the operation lever 53 and easily perform the swinging operation. can be done.
Also, a first member 51 fixed to a side portion of the driver's seat 10 and extending in the front-rear direction, a second member 52 movable in the front-rear direction along the first member 51 and to which the armrest 20 is fixed, , and the operation lever 53 allows or prevents movement of the second member 52 with respect to the first member 51 by swinging.

According to this configuration, by swinging the operation lever 53, the movement of the second member 52 relative to the first member 51 is allowed or prevented, so that the movement of the armrest 20 in the front-rear direction can be easily allowed or prevented. can be done with certainty.
The first member 51 includes a base member 54 fixed to the side of the driver's seat 10, a moving member 55 vertically movable with respect to the base member 54, and a second member fixed to the moving member 55. and a support member 90 that supports 52 movably in the front-rear direction.

With this configuration, it is possible to accurately and reliably move the second member 52 with respect to the first member 51 .
The operation lever 53 includes a rocking body 58 that can rock upward or downward about a rocking fulcrum 531, a rotating body 59 that rotates about an axis extending in the front-rear direction as the rocking body 58 rocks, The first member 51 has a locking portion 62 into which the claw portion 60 is inserted or removed as the rotating body 59 rotates.

According to this configuration, it is possible to reliably allow or prevent the movement of the armrest 20 in the longitudinal direction due to the rocking motion of the operating lever 53 .
In addition, the rotating body 59 has a first shaft portion 591 extending in the front-rear direction and a second shaft portion 592 extending from the front portion of the first shaft portion 591 to the side away from the driver's seat 10 . is formed with an insertion portion 58a into which the second shaft portion 592 is inserted.

According to this configuration, the second shaft portion 592 can be moved by the rocking movement of the rocking body 58, and the first shaft portion 591 can be rotated around the axis extending in the front-rear direction. Therefore, it is possible to reliably allow or prevent the armrest 20 from moving in the longitudinal direction by swinging the operation lever 53 with a simple configuration that does not require a large space.
The insertion portion 58a is formed as an elongated hole extending in the front-rear direction, and the second shaft portion 592 rotates upward about the axis extending in the front-rear direction as the rocking body 58 swings upward. , rotates downward about an axis extending in the front-rear direction as the rocking body 58 rocks downward.

With this configuration, the second shaft portion 592 can be reliably moved upward or downward by the rocking movement of the rocking body 58, and the first shaft portion 591 can be rotated around the axis extending in the front-rear direction. In addition, it is possible to prevent the second shaft portion 592 from detaching from the insertion portion 58a due to the rocking movement of the rocking body 58 .
In addition, the work vehicle 1 includes a vehicle body 2, a driver's seat 10 mounted on the vehicle body 2, a connection portion 4 for a working device provided in the rear portion of the vehicle body 2, and an operation tool provided on the side of the driver's seat 10. An armrest 20 having a first upper surface 21U provided with 30 and a second upper surface 22U provided behind the first upper surface 21U and for a worker sitting on the driver's seat 10 to rest his elbows, The second upper surface 22U connects the rear region 22U2, the front region 22U1 provided in front of the rear region 22U2 and above the rear region 22U2, and the front region 22U1 and the rear region 22U2. and an intermediate region 22U3 that slopes downward toward the rear.

According to this configuration, when a worker sitting on the driver's seat 10 works while facing backward with his arms on the armrest 20, the load applied to the arms can be reduced to reduce fatigue.
Also, the area of the rear region 22U2 is more than twice the area of the front region 22U1.
According to this configuration, the operator seated on the driver's seat 10 has excellent stability when the elbow is placed on the rear region 22U2, so fatigue during backward facing work can be reduced.

Also, the area of the intermediate region 22U3 is smaller than the area of the front region 22U1.
According to this configuration, of the portions where the arms of the operator seated in the driver's seat 10 come into contact with the second upper surface 22U, the portion in contact with the inclined intermediate region 22U3 is reduced, so that the operator's fatigue can be reduced. .
In addition, the front end portion 22a of the front region 22U1 is positioned forward on the side of the driver's seat 10 compared to the side opposite to the side of the driver's seat 10 when viewed from above.

According to this configuration, a worker sitting in the driver's seat 10 can stably put his/her arm on the upper surface of the armrest 20 because the front region 22U1 on the side closer to the worker is formed wider.
Also, the rear region 22U2 is located below the rear end of the first upper surface 21U.
According to this configuration, since the second upper surface 22U becomes lower in stages from the first upper surface 21U toward the rear region 22U2, it is possible to reduce fatigue of the operator during backward facing work.

Further, the armrest 20 has a storage portion 25 for storing a switch device 46 provided with operation switches 47 and 48, and a cover 26 capable of opening or closing the upper side of the storage portion 25. The second upper surface 22U is It is provided on the upper surface of the cover 26 .
According to this configuration, the cover 26 can be opened when the operation switches 47 and 48 are operated, while the upper surface of the cover 26 can be opened for the operator to rest his or her elbows on when the operation switches 47 and 48 are not used. It can be used as the second upper surface 22U. Moreover, the front region 22U1 and the intermediate region 22U3 of the cover 26 can be formed thick, and the strength of the cover 26 can be improved.

In addition, a side console 110 is provided on the side of the armrest 20 opposite to the side of the driver's seat 10, and the side console 110 is provided with another operation tool 120 that performs an operation different from that of the operation tool 30. The operation tool 120 includes an operation tool 127 provided behind the armrest 20 .
According to this configuration, since the other operation tool 120 provided on the side console 110 includes the operation tool 127 provided behind the armrest 20, the operator seated on the driver's seat 10 can place his or her arm on the armrest 20. In the case of performing work while facing backward in the placed state, the operation tool 127 can be easily operated with a small load applied to the arm.

In addition, the front portion of the armrest 20 curves toward the side away from the driver's seat 10 toward the front end portion when viewed from above.
According to this configuration, when an operator seated in the driver's seat 10 operates an operation tool (such as an accelerator pedal 15) in front of the driver's seat 10, the operator's right leg is prevented from hitting the armrest 20. .

The work vehicle 1 also includes a cabin 11 surrounding the driver's seat 10 , and the cabin 11 has a rear window 87 behind the armrest 20 .
According to this configuration, when an operator sitting in the driver's seat 10 places his arms on the armrest 20 and works while facing rearward, the load applied to the arms is small, and the rear window 87 of the cabin 11 can be pushed rearward. You can easily work while watching.

In addition, the work vehicle 1 includes a driver's seat 10 , a side console 110 provided on the side of the driver's seat 10 , a first position provided on the side console 110 and approaching the driver's seat 10 and a first position away from the driver's seat 10 . a first operating lever 121 that can swing between two positions; and a swingable second operating lever 122, wherein the distance between the first operating lever 121 at the second position and the second operating lever 122 at the fourth position is equal to the first operating lever 122 at the first position. It is larger than the distance between the lever 121 and the second operating lever 122 in the second position.

According to this configuration, when an operator sitting in the driver's seat 10 works while facing backward, the operating lever (second operating lever 122) can be positioned near the front of the operator. Therefore, the operability of the control lever is excellent when a worker sitting on the driver's seat 10 works while facing backward.
A first groove 115 through which the first operating lever 121 is inserted and extending in the swinging direction of the first operating lever 121 , and a second groove 115 through which the second operating lever 122 is inserted and extending in the swinging direction of the second operating lever 122 . , and the first groove 115 and the second groove 116 are arranged so as to be gradually spaced apart from the driver's seat 10 .

According to this configuration, the swinging direction of the second control lever 122 inserted into the second groove 116 is set to be closer to the front of the worker when the worker sitting on the driver's seat 10 works facing backward. Or it can be in the direction of separating. Therefore, the operability of the control lever is excellent when a worker sitting on the driver's seat 10 works while facing backward.
At least part of the second control lever 122 is arranged behind the driver's seat 10 in the front-rear direction.

According to this configuration, the second control lever 122 arranged behind the driver's seat 10 can be easily operated when the worker sitting on the driver's seat 10 performs the work while facing backward.
Further, a cabin 11 surrounding the driver's seat 10 is provided, and the cabin 11 has a support (side support 85L) provided on the side of the driver's seat, and the support 85L includes a first operating lever 121 and a second operating lever. 122.

According to this configuration, the first operating lever 121 and the second operating lever 122 can be provided on the side console 110 without being blocked by the strut 85L provided on the side of the driver's seat 10 .
In addition, a column cover 118 is provided upright between the first operating lever 121 and the second operating lever 122 of the side console 110 and covers the driver's seat 10 side of the column 85L. A harness 93 that connects equipment inside the cabin 11 and equipment outside the cabin 11 is arranged in the space S4.

According to this configuration, the harness 93 can be routed using the space S4 between the support 85L and the support cover 118, so that the harness 93 can be safely routed with less exposure.
A notch 118d is formed in the column cover 118 to allow the harness 93 to pass through the space S4.

According to this configuration, the harness 93 can be routed from the cutout portion 118d of the column cover 118 toward the space S4 between the column 85L and the column cover 118. As shown in FIG.
The work vehicle 1 also includes a driver's seat 10, a cabin 11 having a plurality of posts 81 erected around the driver's seat 10, and a display device 100 for displaying a setting screen for setting travel and/or work. , and a support member 90 for supporting the display device 100, the plurality of supports 81 including a side support 85L erected on the side of the driver's seat 10, the support member 90 extending forward from the side support 85L. a lower portion 90b extending forward from the side post 85L below the upper portion 90a; and a front portion 90c connecting the front end of the upper portion 90a and the front end of the lower portion 90b. is doing.

According to this configuration, since the support member 90 that supports the display device 100 is supported by the side struts 85L erected on the side of the driver's seat 10, the operator sitting on the driver's seat 10 can easily operate the display device. 100 can be easily manipulated. In addition, since the support member 90 has the upper portion 90a, the lower portion 90b, and the front portion 90c, the display device can be supported at the optimum portion of the support member 90 for operation according to the physique of the operator. be able to. Furthermore, the display device 100 can be attached to any of the upper portion 90a, the lower portion 90b, and the front portion 90c of the support member 90. FIG. Therefore, multiple display devices 100 can be attached to the support member 90 .

Moreover, the support member 90 is formed in a U shape as a whole.
With this configuration, the support member 90 can be made of a single member with high strength.
A side console 110 provided on the side of the driver's seat 10 is provided, and the cabin 11 has a roof 82 supported on the upper part of the support column 81. The upper part 90a is arranged above the vertical center of the projecting part 84La.
According to this configuration, it is possible to support the display device 100 at an appropriate height position with respect to the line of sight of the operator sitting on the driver's seat 10 .

In addition, the lower portion 90b is arranged below the vertical center of the projecting portion 84La.
With this configuration, it is possible to stably support the display device 100 at an appropriate height position.
The support member 90 also includes a harness 93 connected to the display device 100 , and the support member 90 includes an insertion portion 90 d through which the harness 93 is inserted, and an extraction member for removing the harness 93 inserted through the insertion portion 90 d toward the display device 100 . The insertion portion 90d and the extraction portion 90e are provided in at least one of the upper portion 90a, the lower portion 90b, and the front portion 90c.

According to this configuration, the harness 93 can be inserted through the insertion portion 90 d of the support member 90 and taken out from the extraction portion 90 e to be connected to the display device 100 . Therefore, the harness 93 can be connected to the display device 100 with less exposure.
Further, the display device 100 is supported by the upper portion 90a and/or the lower portion 90b.
According to this configuration, the display device 100 can be attached to the support member 90 at an optimum position in the front-rear direction.

The work vehicle 1 also includes a slide mechanism that supports the display device 100 so as to be slidable in the front-rear direction with respect to the upper portion 90a or the lower portion 90b.
According to this configuration, an operator seated in the driver's seat 10 can easily adjust the position of the display device 100 in the front-rear direction according to his/her physique and preference using the slide mechanism.
The work vehicle 1 includes a vehicle body 2, a driver's seat 10 mounted on the vehicle body 2, front wheels 3F provided at the front portion of the vehicle body 2, rear wheels 3R provided at the rear portion of the vehicle body 2, and a driver's seat. 10, and a boarding step (lower step 142L) provided on the side and below the cabin 11 between the front wheel 3F and the rear wheel 3R and movable in the front-rear direction.

According to this configuration, the position of the step 142L can be changed in the longitudinal direction as required. Therefore, for example, when the rear wheels of the work vehicle 1 are changed from tires to crawlers, the distance between the step 142L and the crawler in the longitudinal direction can be secured by moving the step 142L forward. It is possible to safely get on and off. In addition, it is possible to prevent the boarding/alighting step 142L from interfering with crops and ridges.

The clutch housing 6 and a first support frame 150 that supports a urea tank 160 that is connected to the clutch housing 6 and stores urea water are provided. movably connected to the
According to this configuration, the step 142</b>L can be supported on the clutch housing 6 using the first support frame 150 that supports the urea tank 160 .

Also provided is a second support frame 153 that is connected to the clutch housing 6 and supports a fuel tank 165 that stores fuel. .
According to this configuration, the step 142L can be supported on the clutch housing 6 using the second support frame 153 that supports the fuel tank 165. As shown in FIG. Also, the boarding/alighting step 142L can be firmly supported by the first support frame 150 and the second support frame 153 .

The boarding/alighting step 142L includes a first step member 144 connected to the first support frame 150, and a second step that is movable relative to the first step member 144 toward the side toward the cabin 11 or toward the side away from the cabin 11. and a member 145 .
According to this configuration, the step 142L can be moved not only in the longitudinal direction but also in the width direction of the vehicle body. Therefore, it becomes possible to adjust the position of the boarding/alighting step 142L to the optimum position. In addition, it is possible to prevent the boarding/alighting step 142L from interfering with crops and ridges.

Also, the first step member 144 is connected to the second support frame 153 .
With this configuration, the first step member 144 can be supported by the clutch housing 6 via the second support frame 153 .
In addition, the step 142L includes a step plate 146 on which the foot is placed, and a support mechanism (front plate 147, rear plate 148, A base portion 144 a , a first extension portion 144 b , and a second extension portion 144 ), and the upper end portion of the support mechanism is located above the upper surface of the step plate 146 .

With this configuration, the support mechanism serves as a kick stop when the foot is placed on the step plate 146 . In other words, the support mechanism prevents the foot from protruding from the step plate 146 . In addition, workability is excellent when the step plate 146 is moved in the front-rear direction by the support mechanism.
Moreover, it has an attachment portion 407 for attaching the second step member 145 to the first step member 144, and a movement restricting portion 408 for restricting the movement of the second step member 145 with respect to the first step member 144. 407 includes a plurality of mounting portions arranged in the width direction of the vehicle body, and the movement restricting portion 408 cannot be mounted by the plurality of mounting portions 407 when the second step member 145 is moved laterally away from the cabin 11. Prevents movement to the position where

According to this configuration, when the second step member 145 is attached to the first step member 144, the second step member 145 is always attached by the plurality of attachment portions 407 arranged in the width direction of the vehicle body. Therefore, the attachment strength of the second step member 145 to the first step member 144 is increased, and the second step member 145 can be prevented from falling off from the first step member 144 .

The second step member 145 also has an orientation regulating portion 409 that regulates the vertical orientation with respect to the first step member 144 and prevents downward movement with respect to the first step member 144 .
According to this configuration, when attaching the second step member 145 to the first step member 144, it is possible to prevent the second step member 145 from being attached in the wrong vertical direction. Moreover, it is possible to prevent the second step member 145 from falling off from the first step member 144 after the second step member 145 is attached to the first step member 144 .

Although one embodiment of the present invention has been described above, it should be considered that the embodiment disclosed this time is illustrative in all respects and is not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

1 work vehicle 2 vehicle body 3F front wheel 3R rear wheel 6 clutch housing 10 driver's seat 11 cabin 142 boarding step 142L boarding step (lower step)
144 First step member 145 Second step member 146 Step plate 150 First support frame 153 Second support frame 160 Urea tank 165 Fuel tank 407 Mounting portion 408 Movement restricting portion 409 Orientation defining portion

Claims (8)

a vehicle body;
a driver's seat mounted on the vehicle body;
a front wheel provided at the front of the vehicle body;
a rear wheel provided at the rear portion of the vehicle body;
a cabin surrounding the driver's seat;
a first support frame connected to the vehicle body;
a step for getting on and off, which is provided between the front wheel and the rear wheel and on the side and below the cabin and is movable in the front-rear direction;
with
The step includes a base extending linearly in the front-rear direction and attached to the first support frame such that the position of the base in the front-rear direction, which is the direction in which the base extends, can be changed. A work vehicle that can move in the front-rear direction by changing the position of the front-rear direction . The vehicle body has a clutch housing ,
The work vehicle according to claim 1, wherein the first support frame supports a urea tank that is connected to the clutch housing and stores urea water. a second support frame that supports a fuel tank that is connected to the clutch housing and stores fuel;
The work vehicle according to claim 2, wherein the step for getting on and off is connected to the second support frame so as to be movable in the front-rear direction. The step includes a first step member including the base portion, a first extension portion extending outward from the front end of the base portion, and a second extension portion extending outward from the vehicle body from the rear end portion of the base portion. ,
A step plate disposed between the first extension portion and the second extension portion for placing the foot thereon, and a step plate provided at the front portion of the step plate, and the first extension portion is provided on the side or the side approaching the cabin. A front plate that is movably attached to the side away from the cabin, and a rear portion that is provided at the rear portion of the step plate and is movably attached to the second extension portion to the side approaching the cabin or the side away from the cabin. The work vehicle according to any one of claims 1 to 3, further comprising a second step member including a plate . 5. A work vehicle according to claim 4, wherein said first step member is connected to said second support frame. The getting-on/off step has a step plate on which a foot is placed, and a support mechanism provided along the side edge of the step plate and supporting the step plate so as to be movable in the front-rear direction,
The work vehicle according to any one of claims 1 to 5, wherein an upper end portion of the support mechanism is positioned above an upper surface of the step plate. a mounting portion for mounting the second step member on the first step member;
a movement restricting portion that restricts movement of the second step member relative to the first step member;
has
The mounting portion includes a plurality of mounting portions arranged in the width direction of the vehicle body,
6. The movement restricting portion according to claim 4, wherein when the second step member is moved laterally away from the cabin, the movement restricting portion prevents movement to a position where attachment by the plurality of attachment portions becomes impossible. work vehicle. 6. The second step member according to claim 4, wherein the second step member has an orientation regulating portion that regulates a vertical orientation with respect to the first step member and prevents downward movement with respect to the first step member. work vehicle.

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