JP7275006B2 - work vehicle - Google Patents

Description

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 driver's seat and an armrest provided on the side of the driver's seat. The armrest is provided with operating tools such as a main shift lever and an auxiliary shift lever for performing operations related to traveling. Further, an operation tool such as an accelerator lever is provided in the vicinity of the steering handle.

JP-A-2007-8222

However, in the work vehicle described in Patent Document 1, the swinging directions of the main shift lever and the sub shift lever are parallel to the driver's seat. In addition to the main shift lever and the sub shift lever, an operation tool (accelerator lever) for performing operations related to running is arranged near the steering handle instead of the armrest. As a result, there is a problem that the operability of the travel-related operating tools is poor for the driver (operator) seated in the driver's seat.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a work vehicle in which a driver sitting in the driver's seat has excellent operability of travel system operation tools.

A work vehicle according to an aspect of the present invention includes a driver's seat and an armrest provided on the side of the driver's seat, and the armrest is an operation lever that performs an operation related to traveling by swinging forward or backward. a traveling system operating tool for performing operations related to running by rotating about a horizontal axis; a working system operating tool for performing operations related to work by swinging about a horizontal axis; and a base for supporting the base of the operating lever. In a plan view, the driver's seat is positioned on each extension line of the swinging direction of the operating lever and the rotating direction of the travel system operation tool , and the travel system operation tool and the work system operation tool are separated by the width of the armrest. and a projection is provided between the traveling system operation tool and the work system operation tool, and the pedestal is provided so as to protrude from the front part of the armrest, and the projection is located on the pedestal. The front part is connected to the side of the pedestal .

Preferably, extension lines of the swinging direction of the operating lever and the rotating direction of the traveling system operating tool are inclined with respect to the longitudinal direction of the armrest in a plan view.
Preferably, the side surface of the armrest is provided with a plurality of pressing operation tools for performing operations related to running by pressing, and the driver's seat is positioned on an extension line in the direction in which the plurality of pressing operation tools are arranged in a plan view. ing.

Preferably, the operation lever has a mounting surface provided with a pressing operation tool that performs an operation related to running by pressing and is different from the pressing operation tool, and is on a longitudinal extension line of the mounting surface. The driver's seat is located in

Preferably, the swinging direction of the work system operating tool and the rotating direction of the traveling system operating tool are parallel in a plan view, and the projection is arranged in the swinging direction of the working system operating tool and the traveling system operating tool. It extends parallel to the direction of rotation of the tool.
Preferably, the traveling system operation tool is arranged on the driver's seat side, and the work system operation tool is arranged on the side opposite to the driver's seat side.

According to the above-described work vehicle, both the operation lever for performing the operation related to traveling by swinging forward or backward and the travel system operating tool for performing the operation related to traveling by rotating about the horizontal axis are provided on the armrest, and , Since the driver's seat is located on each extension line of the swinging direction of the operating lever and the rotating direction of the traveling system operating tool, the operating tool (operating lever, traveling system operation tool) is excellent in operability.

It is a top view which shows a driver's seat, an armrest, and a steering wheel. It is the perspective view which looked at the armrest from the upper left back. It is the perspective view which looked at the armrest from the upper right front. 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 a rear view of an armrest. It is a front view of an armrest. It is the perspective view which looked at the grip vicinity of an armrest from the upper back. It is the figure which looked at the grip vicinity of an armrest from the direction where the back surface of a grip part becomes a substantially vertical surface. It is the side view which looked at the grip vicinity of an armrest from the driver's seat side (left side). It is the side view which looked at the grip vicinity of an armrest from the driver's seat and opposite side (right side). It is a top view which shows the front part of an armrest. It is a top view which shows an operation tool arrangement|positioning part. FIG. 4 is a plan view of the armrest with an elbow rest part opened; It is a top view which shows a rear operation tool group. 1 is a plan view of a work vehicle; FIG. 1 is a side view of a working vehicle; FIG. FIG. 5 is a diagram showing the relationship between speed-up or deceleration operations of an operation lever and an operation switch and operations of the transmission; FIG. 11 is another diagram showing the relationship between speed-up or deceleration operations of the operation lever and the operation switch and the operation of the transmission;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
17 is a plan view of the work vehicle 1, and FIG. 18 is a side view of the work vehicle 1. FIG. The work vehicle 1 is a vehicle for agricultural work, and is a tractor in the case of the present 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 (arrow A1 direction in FIGS. 17 and 18) is forward, and the rear side of the driver (arrow A2 direction in FIGS. 17 and 18) is backward. , the left side of the driver (in the direction of arrow B1 in FIG. 17) is defined as the left side, and the right side of the driver (in the direction of arrow B2 in FIG. 17) is defined as the right side. Also, the direction indicated by the arrow K1 in FIGS. 17 and 18 will be described as the front-rear direction. Further, the horizontal direction (direction of arrow K2 in FIG. 18) perpendicular to the front-rear direction is referred to as the width direction of the vehicle body.

<Overall configuration of working vehicle>
As shown in FIGS. 17 and 18, 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. 18 , 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 13 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 device (rear wheel differential device), and the like. The transmission is a device that changes the traveling speed of the tractor 1 and includes a main transmission and a sub-transmission. A PTO shaft (rear PTO) 9 protrudes behind the vehicle body 2 (behind the transmission case 7). Moreover, although not shown, a PTO shaft (front PTO) also protrudes in front of the vehicle body 2 . The rear PTO and front PTO are rotated or stopped by connecting or disconnecting a PTO clutch (not shown).

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, the driver's seat 10 has a backrest portion 10a and a seat portion 10b. A steering wheel 12 is provided in front of the driver's seat 10 .
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 controls operations related to shifting (acceleration or shifting) of the transmission based on an operation signal from the operation tool, control related to elevation of the lifting device 4 based on the operation signal from the operation tool, and control from the accelerator pedal sensor. It executes control of the rotation speed of the engine 8 based on the detection signal.

<Armrest>
As shown in FIG. 1 , an armrest 15 is provided on one side of the driver's seat 10 . The armrest 15 is arranged such that its longitudinal direction faces the front-rear direction and its short direction faces the vehicle body width direction. Hereinafter, the lateral direction of the armrest 15 is referred to as the width direction of the armrest 15 . The width direction of the armrest 15 is perpendicular to the longitudinal direction of the armrest 15 and is the same as the width direction of the vehicle body. In addition, in the case of this embodiment, the one side is the right side, and the other side opposite to the one side is the left side. Accordingly, one side of the armrest 15 is the side opposite to the driver's seat 10 side, and the other side of the armrest 15 is the driver's seat 10 side.

As shown in FIGS. 2 to 8, the armrest 15 has a main body 16, and a swing operating section 17, an elbow rest section 18, and an operating tool placement section 19 provided on the main body 16. As shown in FIGS. The body 16 has an upper surface 16a, a lower surface 16b, a left side 16c, a right side 16d, a front surface 16e and a rear surface 16f.
As shown in FIG. 6, the upper surface 16a gently curves upward in a convex shape. The upper surface 16a is inclined downward toward the front. The lower surface 16b has a rear portion 16b2 that is recessed upward compared to a front portion 16b1. This prevents the lower surface 16b of the armrest 15 from coming into contact with the knee (right knee) of the operator seated on the driver's seat 10 . A mounting tool 39 for mounting the armrest 15 to the side of the driver's seat 10 is provided on the rear portion 16b2 of the lower surface 16b.

The left side surface 16c connects the left portion of the upper surface 16a and the left portion of the lower surface 16b. The right side surface 16d connects the right portion of the upper surface 16a and the right portion of the lower surface 16b. The front surface 16e connects the front portion of the upper surface 16a, the front portion of the lower surface 16b, the front portion of the left side surface 16c, and the front portion of the right side surface 16d. The rear surface 16f connects the rear portion of the upper surface 16a, the rear portion of the lower surface 16b, the rear portion of the left side surface 16c, and the rear portion of the right side surface 16d.

As shown in FIG. 4, the front portion of the left side surface 16c forms an inclined surface 16c1 that inclines toward the opposite side (to the right) of the driver's seat 10 as it goes forward. As shown in FIG. 7, the left side surface 16c is inclined to the right as it goes downward. The right side surface 16d is inclined so as to shift leftward as it goes downward. As shown in FIGS. 5 and 6, the lower portion of the front surface 16e is inclined rearward as it goes downward. The upper portion of the front surface 16e is inclined rearward as it goes upward. The lower portion of the rear surface 16f is inclined forward as it goes downward. The upper portion of the rear surface 16f is inclined so as to move forward as it goes upward.

As shown in FIGS. 3, 4, and 6, the side surface of the armrest 15 is provided with a recessed portion 15a. The recessed portion 15a is provided on the side surface of the armrest 15 opposite to the driver's seat 10 side (the right side surface 16d of the main body 16). The recessed portion 15a gradually widens in the front-rear direction from the top to the bottom, and has a substantially trapezoidal shape when viewed from the side. The recessed portion 15a has a flat portion 15a1 that is the deepest recessed leftward from the right side surface 16d, and an inclined portion 15a2 that gradually becomes deeper from the right side surface 16d to the flat portion 15a1. .

The recessed portion 15a is provided in a region that overlaps the region in which the operation tool placement portion 19 is provided in the front-rear direction. Note that "A overlaps B in the front-back direction" means that A overlaps B when only the positions of A and B in the front-back direction are compared.
Specifically, the region in which the recessed portion 15a is provided is one of the following five cases.
In the first case, the front end portion of the recessed portion 15a is positioned between the front end portion and the rear end portion of the region in which the operation tool placement portion 19 is provided, and the rear end portion of the recessed portion 15a is positioned in the front-rear direction. This is the case where it is located behind the rear end of the region where the tool placement portion 19 is provided. That is, in the front-rear direction, the recessed portion 15a overlaps with the region where the operating tool placement portion 19 is provided while shifting rearward. The illustrated embodiment corresponds to this "first case".

In the second case, the front end portion of the recessed portion 15a is positioned forward of the front end portion of the region in which the operation tool placement portion 19 is provided, and the rear end portion of the recessed portion 15a is located in front of the operation tool placement portion in the front-rear direction. 19 is located between the front and rear ends of the area provided. That is, in the front-rear direction, the recessed portion 15a overlaps the region in which the operating tool placement portion 19 is provided while shifting forward.

In the third case, in the front-rear direction, the front end of the recessed portion 15a is located forward of the front end of the region in which the manipulator placement portion 19 is provided, and the rear end of the recessed portion 15a is the manipulator placement portion. This is the case where it is positioned behind the rear end of the region where 19 is provided. That is, in the front-rear direction, the recessed portion 15a extends forward and rearward beyond the region in which the operation tool placement portion 19 is provided.

In the fourth case, both the front and rear ends of the recessed portion 15a are positioned between the front and rear ends of the region where the operation tool placement portion 19 is provided in the front-rear direction. In other words, this is the case where the recessed portion 15a extends short in the front-rear direction without exceeding either forward or rearward the region in which the operation tool placement portion 19 is provided.
In the fifth case, the front end of the recessed portion 15a coincides with the front end of the region in which the operating tool placement portion 19 is provided, and the rear end of the recessed portion 15a is provided with the operating tool placement portion 19 in the front-rear direction. This is the case when it coincides with the trailing edge of the marked region. In other words, this is the case where the region where the recessed portion 15a is provided matches the region where the operation implement placement portion 19 is provided in the front-rear direction.

As shown in FIG. 13, a plurality of manipulators 61 to 75 are arranged in the manipulator placement portion 19 . Some of the plurality of operating tools (the operating tools 69 and 70, the operating tools 66-68, the operating tools 64 and 65, and the operating tools 61-63) are arranged side by side in the front-rear direction. Also, some of the plurality of operating tools (for example, the operating tool 69, the operating tool 66, and the operating tool 61) are arranged side by side in the width direction of the vehicle body. In other words, some of the plurality of manipulators (for example, the manipulator 69, the manipulator 66, and the manipulator 61) are moved from the side (right side 16d) on which the recessed portion 15a is provided. They are arranged side by side toward the opposite side surface (left side surface 16c).

The concave portion 15a includes a plurality of operating tools (operating tools 69 and 70, operating tools 66 to 68, operating tools 64 and 65, operating tools 61 to 63) arranged side by side in the front-rear direction. It is provided in an area overlapping with Specifically, the recessed portion 15a includes a plurality of operating tools (operating tools 69 and 70, operating tools 66 to 68, operating tools 64 and 65, operating tools 61, and operating tools 69 and 70, operating tools 66 to 68, operating tools 64 and 65, and operating tools 61 arranged side by side in the front-rear direction. 63). In other words, the front end of the recessed portion 15a is located forward of the front ends of the plurality of manipulators arranged side by side in the front-rear direction, and the rear ends of the recessed portions 15a are arranged side by side in the front-rear direction. It is located behind the rear end portions of the plurality of operating tools. In other words, the recessed portion 15a is provided over the entire length of the range in which the first operation tool group 60A, which will be described later, is provided in the front-rear direction.

The recessed part 15a is formed in a size that allows a driver seated in the driver's seat 10 to hook four fingers excluding the thumb when operating the operation tools arranged in the operation tool placement part 19. - 特許庁Therefore, the length of the recessed portion 15a in the front-rear direction is set to a length that allows four fingers other than the thumb to be hooked. The recessed portion 15a is provided in a range extending over the elbow rest portion 18 and the operating tool placement portion 19 in the front-rear direction.

Since the recessed portion 15a is provided on the side surface of the armrest 15, the driver (operator) can hold the operating tool arranged in the operating tool placement portion 19 with the thumb while hooking a finger other than the thumb on the recessed portion 15a. etc. can be operated. Therefore, it is possible to stably and reliably operate the manipulator arranged in the manipulator arrangement portion 19 .

<Swing operation part>
As shown in FIGS. 2 to 8, the swing operation portion 17 is provided on the front portion of the armrest 15. As shown in FIGS. The swing operation portion 17 has a base 20 and an operation lever 21 .
The pedestal 20 is a portion that supports the base (lower portion) of the operating lever 21 . The pedestal 20 is protuberantly provided on the front portion of the armrest 15 . The pedestal 20 protrudes upward from the upper surface 16 a of the main body 16 . The pedestal 20 protrudes higher than the upper surface 18 a of the elbow rest 18 . In other words, the height of the upper end portion of the pedestal 20 (the height from the upper surface 16 a ) is higher than the height of the upper surface 18 a of the elbow rest portion 18 . The pedestal 20 is formed in a substantially truncated pyramid shape, and tapers toward the top. The base 20 has an upper surface 20a, a front surface 20b, a rear surface 20c, a left surface 20d and a right surface 20e. The distance between the front surface 20b and the rear surface 20c and the distance between the left surface 20d and the right surface 20e narrow upward. As shown in FIG. 11, the upper surface 20a of the pedestal 20 is curved upward into a convex arc shape.

The pedestal 20 is made of a hard material and does not deform when the operating lever 21 is swung. As shown in FIG. 11, the upper surface 20a of the pedestal 20 is formed with an opening 20f. The opening 20f is formed in an oval shape extending in the front-rear direction.
The operating lever 21 is provided so as to protrude upward from the upper surface of the armrest 15 (the upper surface 16a of the main body 16). As shown in FIGS. 4 and 5, the operating lever 21 has a rocking body 22 and a grip 23. As shown in FIGS.

As shown in FIG. 5 , the swinging body 22 is a shaft inserted through the pedestal 20 and serves as a swinging shaft (a swinging shaft) of the operating lever 21 . The rocking body 22 is rockable in the front-rear direction. The rocking body 22 penetrates the upper surface 20a of the base 20 and protrudes upward. As shown in FIG. 11, the periphery of the upper portion of the swinging body 22 is covered with a cover having a skirt 22a on the lower portion. The skirt 22a curves along the upper surface 20a of the base. The skirt 22a moves along the upper surface 20a of the pedestal as the operating lever 21 swings.

As shown in FIG. 4, the rocking body 22, which is the rocking shaft of the operation lever 21, is located on the side (right side 16d) of the armrest 15 opposite to the side of the driver's seat 10 from the side (left side 16c) on the side of the driver's seat 10. ) is located close to In other words, the swinging body 22 is at a position shifted to the right with respect to the center of the armrest 15 in the width direction of the vehicle body.
A lower portion of the swinging body 22 is swingably supported by a horizontal shaft (a shaft extending in the width direction of the vehicle body) 21a (see FIG. 5) provided inside the armrest 15 . The horizontal shaft 21 a is a pivot point of the swinging body 22 . The operating lever 21 (the rocking body 22 and the grip 23) can be rocked back and forth around the horizontal shaft 21a. By swinging the operation lever 21 in the front-rear direction, it is possible to operate the transmission (main transmission) to perform the gear shift operation. That is, the operating lever 21 is a lever that causes the transmission to accelerate or decelerate by swinging forward or backward. Specifically, by swinging the operating lever 21 forward, the transmission can be caused to perform a speed increasing operation. By swinging the operating lever 21 rearward, the transmission can be caused to perform a deceleration operation.

The control device controls driving of the transmission (main transmission) based on the operation of the control lever 21 . Specifically, when the operating lever 21 is pivoted forward, the control device causes the transmission to perform a speed increasing operation, and when the operating lever 21 is pivoted backward, the control device causes the transmission to perform a speed-increasing operation. Execute the deceleration operation.
The operating lever 21 is a self-returning lever that returns from an operating position (a position swung forward or backward) to a non-operating position (a position before the swinging operation) when the operation is stopped. When the operating lever 21 is swung forward or rearward to the operating position, the transmission is turned ON and the shift is executed, and when the operating lever 21 is released, the operating lever 21 returns to the non-operating position. Then, the transmission is turned off and the shift is not executed.

When the operating lever 21 swings forward, the swinging body 22 hits the front edge of the opening 20f and stops, and when swinging backward, the swinging body 22 hits the rear edge of the opening 20f and stops. That is, the front-rear swing of the operating lever 21 is restricted by the opening 20f.
As shown in FIG. 5, the grip 23 is provided on the top of the swinging body 22 . As shown in FIGS. 7, 9, 11, and 13, the grip 23 has a grip portion 24, an operating portion 25, and an extending portion 26. As shown in FIGS. The grip portion 24 is a portion that is gripped with one hand (right hand) by an operator seated in the driver's seat 10 . The operation part 25 is a part for the operator holding the grip part 24 to extend the thumb to operate. The extending portion 26 is a portion on which the operator who grips the grip portion 24 places the little finger side (little finger ball) of the palm, etc., so that the palm gripping the grip portion 24 does not slip downward and sideways. To support. The grip portion 24, the operating portion 25, and the extension portion 26 are integrally formed.

First, the shape of the grip portion 24 of the grip 23 will be described.
The grip portion 24 is provided on one side (right side) of the grip 23 . In other words, the grip portion 24 is provided on the side of the grip 23 opposite to the driver's seat 10 side. As shown in FIGS. 7 to 13, the grip portion 24 has a front surface 24a, a back surface 24b, an upper surface 24c, a lower surface 24d, a left side 24e, a right side 24f, and a corner edge surface 24g.

The surface 24a of the grip portion 24 constitutes the right portion of the surface of the grip 23 (the surface facing the operator seated in the driver's seat 10). The surface 24a is a portion that the palm touches when gripping the grip portion 24. As shown in FIG. As shown in FIG. 10, the surface 24a is a curved surface that curves and extends from the other lateral side (left side) toward the one lateral side (right side). Hereinafter, the surface 24a of the grip portion 24 is referred to as "curved surface 24a". As shown in FIG. 10, the curved surface 24a is convexly curved so as to bulge rearward. The right portion of the curved surface 24a transitions from rear to front as it goes from left to right. Further, as shown in FIGS. 11 and 12, the curved surface 24a is curved while being inclined so as to move upward from the bottom as it goes from the rear to the front.

As shown in FIG. 9 and the like, the curved surface 24a has side edges 24h, upper edges 24i, lower edges 24j, corner edges 24k, and curved edges 24r. The side edge 24h, upper edge 24i, lower edge 24j, corner edge 24k, and curved edge 24r constitute the outer edge of the curved surface 24a.
The side edge portion 24h includes a first side edge portion 24h1 and a second side edge portion 24h2. The first side edge portion 24h1 constitutes an edge portion on one side (right side) of the curved surface 24a. The second side edge portion 24h2 forms an edge portion on the other side (left side) of the curved surface 24a. The upper edge portion 24i forms an upper edge portion of the curved surface 24a. The lower edge 24j constitutes a lower edge of the curved surface 24a. The corner edge portion 24k connects the side edge portion (first side edge portion) 24h1 and the upper edge portion 24i, and constitutes the upper corner edge portion on one side (right side) of the curved surface 24a. . The curved edge 24r connects a side edge (first side edge) 24h1 and a lower edge 24j, and constitutes a lower corner edge of one side (right side) of the curved surface 24a.

The first side edge 24h1, the second side edge 24h2, the upper edge 24i, the lower edge 24j, the corner edge 24k, and the curved edge 24r are curved.
The first side edge 24h1 extends downward from above. As shown in FIG. 9 and the like, the first side edge portion 24h1 is curved in a convex shape so as to swell slightly to one side (rightward) in the middle portion extending from the top to the bottom. In addition, the first side edge portion 24h1 shifts from the other side (left side) to the one side (right side) as it goes downward from above. As shown in FIG. 12 and the like, the first side edge portion 24h1 shifts from front to rear as it goes from top to bottom.

The second side edge 24h2 extends downward from above. As shown in FIG. 9 and the like, the second side edge portion 24h2 shifts from one side (right) to the other side (left) as it goes downward from above. The distance between the first side edge portion 24h1 and the second side edge portion 24h2 gradually increases from the top to the bottom. As shown in FIG. 11 and the like, the second side edge portion 24h2 shifts from front to rear as it goes from top to bottom. The second side edge portion 24h2 is curved in a convex shape so as to bulge upward and backward at a midpoint extending downward from above. The curve becomes sharper from the top to the bottom.

As shown in FIG. 9 and the like, the upper edge portion 24i extends from the other side (left) toward one side (right), and extends downward from above as it goes from the other side to the one side. It is curved while sloping to transition. As shown in FIG. 10 and the like, the upper edge portion 24i is convexly curved so as to swell rearward in the middle from one side (right) to the other side (left).
As shown in FIG. 9 and the like, the lower edge 24j extends from the other side (left) toward one side (right). The lower edge 24j is curved in a convex shape so as to swell rearward in the middle from the other side to the one side.

As shown in FIG. 9 and the like, the corner edge portion 24k is curved so as to connect the first side edge portion 24h1 and the upper edge portion 24i with a smooth curve. The corner edge 24k is curved with a smaller radius of curvature than the first side edge 24h1 and the upper edge 24i. In other words, the corner edge 24k is sharply curved compared to the first side edge 24h1 and the upper edge 24i.
As shown in FIG. 9 and the like, the curved edge 24r connects the right end of the lower edge 24j and the lower edge of the first side edge 24h1. The curved edge 24r is formed in an arc shape that protrudes toward the lower right (rear right).

As shown in FIGS. 9 to 11, the left side surface 24e of the grip portion 24 rises from the operation portion 25 toward the curved surface 24a of the grip portion 24. As shown in FIGS. Hereinafter, the left side surface 24e of the grip portion 24 will be referred to as the "upright surface 24e". The upright surface 24e is a portion that can be touched with a thumb when the grip portion 24 is gripped by placing the palm against the curved surface 24a. The upright surface 24e connects the operation portion 25 and the second side edge portion 24h2 of the curved surface 24a. As shown in FIG. 10, the standing surface 24e is slightly inclined from the other side (left side) toward the one side (right side) as it rises from the operating portion 25 toward the curved surface 24a. . A lower edge portion of the upright surface 24 e is connected to the surface 25 a of the operation portion 25 . An upper edge portion of the standing surface 24 e is connected to the upper surface 24 c of the grip portion 24 . The right edge of the upright surface 24e is connected to the second side edge 24h2 of the curved surface 24a.

The upper surface 24 c of the grip portion 24 constitutes the right portion of the upper surface of the grip 23 . As shown in FIG. 9 and the like, the upper surface 24c of the grip portion 24 is inclined downward from above as it goes from the other side (left) to one side (right). Further, the upper surface 24c is curved along the curve of the upper edge portion 24i of the curved surface 24a. As shown in FIGS. 11 and 12, the upper surface 24c is upwardly curved from the bottom toward the rear from the front, and is curved in a convex shape so as to bulge forward in the middle from the top toward the bottom. . The front edge of the upper surface 24c is connected to the upper edge 24i of the curved surface 24a. A trailing edge of the top surface 24c is connected to the back surface 24b. The left edge of the upper surface 24c is connected to the upper edge of the upright surface 24e. The left edge of the upper surface 24c is also connected to the upper surface 25c of the operation portion 25. As shown in FIG.

A right side surface 24 f of the grip portion 24 constitutes an upper portion of the right side surface of the grip 23 . As shown in FIG. 8 and the like, the right side surface 24f of the grip portion 24 is curved along the curve of the first side edge portion 24h1 of the curved surface 24a. Specifically, the right side surface 24f extends downward from above and shifts to one side (rightward) as it goes downward from above. The distance between the upright surface 24e and the right side surface 24f gradually widens from top to bottom. The lower portion of the right side surface 24f is connected to the upper portion of the side surface of the side portion 26B of the extension portion 26, which will be described later.

As shown in FIG. 9 and the like, the corner edge surface 24g of the grip portion 24 connects the upper surface 24c and the right side surface 24f. The corner edge surface 24g is curved along the curve of the corner edge portion 24k of the curved surface 24a. The corner edge surface 24g is curved so as to connect the upper surface 24c and the right side surface 24f with a smooth curved surface. The corner edge surface 24g is curved with a smaller radius of curvature than the upper surface 24c and the right side surface 24f. In other words, the top surface 24c and the right side surface 24f are gently curved, while the corner edge surface 24g is sharply curved.

A rear surface 24 b of the grip portion 24 constitutes a right portion of the rear surface of the grip 23 . The back surface 24b is a portion where the fingertips other than the thumb come into contact when the grip portion 24 is grasped by putting the palm against the curved surface 24a. As shown in FIG. 12, the rear surface 24b of the grip portion 24 is slanted from the bottom to the top as it goes from the rear to the front. Further, as shown in FIG. 10, the rear surface 24b is slanted from front to rear as it goes from one side (left) to the other side (right). The upper edge of the back surface 24b is connected to the top surface 24c. A lower edge of the rear surface 24b is connected to the lower surface 24d. A left edge portion of the back surface 24 b is connected to the back surface 25 b of the operation unit 25 . A right edge portion of the back surface 24 b is connected to the right side surface 24 f and the side portion 26 B of the extension portion 26 . A corner edge portion of the back surface 24b is connected to the corner edge surface 24g. As shown in FIG. 12, the rear surface 24b is provided with a guide recess 37 and an operation switch 36, which will be described later.

A lower surface 24 d of the grip portion 24 constitutes the right portion of the lower surface of the grip 23 . As shown in FIGS. 11 and 12, the upper end portion of the rocking body 22 is connected to the lower surface 24d of the grip portion 24. As shown in FIGS. A front edge portion of the lower surface 24d is connected to the rear surface 24b. A rear edge portion of the lower surface 24 d is connected to the lower surface of the extension portion 26 . A left edge portion of the lower surface 24 d is connected to the lower surface 25 d of the operation portion 25 . A right edge portion of the lower surface 24 d is connected to the right side surface 24 f and the side surface of the extension portion 26 .

Next, the shape of the operating portion 25 of the grip 23 will be described.
The operating portion 25 is provided on the other side (left side) of the grip 23 . In other words, the operation unit 25 is provided on the driver's seat 10 side of the grip 23 .
As shown in FIGS. 7 to 12, the operating portion 25 has a front surface 25a, a back surface 25b, a top surface 25c, a bottom surface 25d, and a left side surface 25e. Hereinafter, in order to clarify the distinction from the surface 24a of the grip portion 24, etc., the surface 25a of the operation portion 25 is referred to as the "second surface 25a," the back surface 25b as the "second back surface 25b," and the top surface 25c as the "second top surface."25c", the lower surface 25d may be referred to as a "second lower surface 25d", and the left side surface 25e may be referred to as a "second left side surface 25e".

The second surface 25 a constitutes the left portion of the surface of the grip 23 . The second surface 25a is a portion that can be touched by extending the thumb when the grip portion 24 is gripped with the palm against the curved surface 24a. As shown in FIG. 11 and the like, the second surface 25a is inclined so as to move upward from the bottom as it goes from the rear to the front. As shown in FIGS. 7, 10, 11, etc., the second surface 25a is inclined from the front to the rear as it goes from the other side (left) to the one side (right). As shown in FIG. 10 and the like, the second surface 25a is located forward of the curved surface 24a, which is the surface of the grip portion 24. As shown in FIG. A plurality of operation switches 30, 31, 32, 34, and 35, which will be described later, are provided on the second surface 25a.

The second upper surface 25 c constitutes the left portion of the upper surface of the grip 23 . As shown in FIG. 9 and the like, the second upper surface 25c is inclined from below to above as it goes from the other side (left) to one side (right). An upper surface 24 c of the grip portion 24 and an upper surface (second upper surface) 25 c of the operating portion 25 are connected in a mountain shape with a vertex 29 near the boundary between the grip portion 24 and the operating portion 25 .

The second lower surface 25 d constitutes the left portion of the lower surface of the grip 23 . As shown in FIG. 9 and the like, the second lower surface 25d is inclined downward from above as it goes from the other side (left) to one side (right). The distance between the second upper surface 25c and the second lower surface 25d gradually increases from the other side toward the one side. The second lower surface 25d is connected to the lower surface 24d of the grip portion 24 and the lower surface of the extension portion 26 (rear portion 26A).

The second left side surface 25 e constitutes the left side surface of the grip 23 . The upper portion of the second left side surface 25e is connected to the left portion of the second upper surface 25c. A lower portion of the second left side surface 25e is connected to a left portion of the second lower surface 25d. A boundary portion between the second left side surface 25e and the second upper surface 25c and a boundary portion between the second left side surface 25e and the second lower surface 25d are curved.
The second back surface 25 b constitutes the left portion of the back surface of the grip 23 . As shown in FIGS. 10 and 12, the second back surface 25b is a generally flat surface that curves very gently. The upper edge of the second rear surface 25b is connected to the second upper surface 25c. A lower edge portion of the second back surface 25b is connected to the second lower surface 25d. A left edge portion of the second back surface 25b is connected to the second left side surface 25e. A right edge portion of the second back surface 25 b is connected to the back surface 24 b of the grip portion 24 .

As shown in FIGS. 7, 9 to 12, etc., the extending portion 26 extends from the lower and right portions of the grip portion 24 and extends rearward (rear downward) and rightward. As shown in FIG. 9, a band-shaped transition region 23a is formed in the portion transitioning from the grip portion 24 to the extension portion 26. As shown in FIG. As shown in FIG. 11, the transition region 23a is curved in an arc shape when viewed from the side.
As shown in FIG. 9 and the like, the extending portion 26 has a rear portion 26A and side portions 26B.

The rear portion 26A extends rearward from the lower portion of the grip portion 24 (the lower edge portion 24j of the curved surface 24a). The rear part 26A extends from the other side (left side) toward one side (right side), and shifts rearward as it goes from the other side toward the one side. The other side portion (left portion) of the rear portion 26A extends to the other side (left side) beyond the curved surface 24a and the upright surface 24e. 2 surface) 25a. As shown in FIG. 9, the extending portion 26 (rear portion 26A) extending from the lower portion of the grip portion 24 has an extending width W1 on one side (right side) that extends from the other side (left side). It is wider than the extension width W2 (W1>W2).

As shown in FIG. 9 , the side part 26B extends to one side (right side) from an edge (first side edge 24h1) on one side (right side) of the grip portion 24 . The rear portion 26A and the side portion 26B are continuously provided from the lower portion of the grip portion 24 to one side (right side). The width of the extending portion 26 is widest at the lower portion (lower right portion) on one side of the grip portion 24 . In other words, the width of the extending portion 26 is widest at the boundary between the rear portion 26A and the side portion 26B. The side portion 26B is provided on one side (right side) of the grip portion 24 in a range from the lower end portion to the middle portion in the vertical direction. That is, the side portion 26B is not provided on the upper portion of one side (right side) of the grip portion 24 .

As shown in FIG. 9, the upper side surface of the side portion 26B is connected to the right side surface 24f of the grip portion 24. As shown in FIG. A bent portion 24m bent in a substantially V-shape (valley shape) is formed in a portion transitioning from the right side surface 24f of the grip portion 24 to the side portion 26B of the extension portion 26. As shown in FIG. The bent portion 24m is recessed in an obtuse V shape. By placing a finger on the bent portion 24m when gripping the grip portion 24, the position of the hand can be determined. As a result, the hand gripping the grip portion 24 is less likely to slip. Further, since the position of the hand is stabilized while gripping the grip portion 24, it becomes easy to operate the operation switches 30 to 35 provided on the operation portion 25 and the upright surface 24e by extending the thumb.

As shown in FIGS. 7 and 9 to 12, the grip 23 has a non-slip portion 28. As shown in FIG.
The non-slip portion 28 is made of a material having a non-slip function, such as rubber. The coefficient of friction of the surface of the non-slip portion 28 is greater than the coefficient of friction of the surface of the grip portion 24 (the surface of the portion where the non-slip portion 28 is not provided). The non-slip portion 28 is configured by, for example, attaching a non-slip member such as a rubber plate to the surface of the grip portion 24 or embedding the non-slip member in the surface of the grip portion 24 . The provision of the non-slip portion 28 prevents the hand from slipping when gripping the grip portion 24 and operating the operation lever 21 . As a result, the operating lever 21 can be reliably operated, and the grip portion 24 does not need to be gripped tightly, so hand fatigue is less likely to occur.

The non-slip portion 28 is provided across (straight over) the surface of the extension portion 26 from the grip portion 24 . Specifically, the non-slip portion 28 is provided from the curved surface 24a of the grip portion 24 to the surface of the extending portion 26 (rear portion 26A and side portion 26B). Hereinafter, of the anti-slip portion 28, the portion provided on the curved surface 24a of the grip portion 24 is referred to as the "anti-slip portion 28a", and the portion provided on the surface of the extension portion 26 is referred to as the "anti-slip portion 28b".

The non-slip portion 28 a is provided over most of the surface area of the curved surface 24 a of the grip portion 24 . Specifically, the upper edge of the anti-slip portion 28a is located near the upper edge 24i of the curved surface 24a. The upper right edge of the non-slip portion 28a is positioned near the corner edge 24k and the first side edge 24h1 of the curved surface 24a. The left edge of the non-slip portion 28a is located near the second side edge 24h2 of the curved surface 24a. The lower right edge and lower edge of the non-slip portion 28a extend beyond the lower edge 24j and curved edge 24r of the curved surface 24a. As a result, most of the palm gripping the grip portion 24 comes into contact with the non-slip portion 28a, so that it is possible to effectively prevent erroneous operation due to slipping of the palm during operation of the operation switch or the like.

The non-slip portion 28b is provided at the rear portion 26A and the side portion 26B of the extension portion 26. As shown in FIG. The non-slip portion 28b extends beyond the lower edge 24j, the first side edge 24h1, and the curved edge 24r of the curved surface 24a to the surfaces of the rear portion 26A and the side portion 26B. The non-slip portion 28b is provided over most of the area of the extension portion 26. As shown in FIG. Specifically, the non-slip portion 28b extends to the vicinity of the rear edge portion of the rear portion 26A of the extension portion 26 and the side edge portion of the side portion 26B. As a result, the non-slip portion 28a can reliably perform the function of the extending portion 26 to support the palm gripping the grip portion 24 so that it does not slip downward and sideways.

Next, operation switches provided on the grip 23 will be described.
The grip 23 is provided with a plurality of operation switches. A plurality of operation switches are provided on the grip portion 24 and the operation portion 25, respectively.
As shown in FIGS. 7 and 9 to 11, the operating section 25 is provided with a plurality of operating switches 30, 31, 32, 34, and 35. As shown in FIGS. A plurality of operation switches 30 , 31 , 32 , 34 , 35 are provided on the surface (second surface) 25 a of the operation portion 25 . Specifically, the operation switches 30 , 31 , 32 are provided above the surface (second surface) 25 a of the operation portion 25 . The operation switches 34 and 35 are provided below the second surface 25a.

A plurality of operation switches 30, 31, 32, 34, and 35 are arranged within a range that can be operated by an operator holding the grip portion 24 with his/her right hand by extending his/her thumb. The operation switches 30 and 31 are seesaw switches. The operation switches 32, 34, 35 are push button switches.
Specifically, the operation switch 30 is a shuttle switch (switch for switching forward and backward travel of the traveling vehicle 1) that operates the transmission. Pushing the upper portion (“F” portion) of the operation switch 30 switches to forward travel, and pushing the lower portion (“R” portion) of the operating switch 30 switches to reverse travel.

The operation switch 31 is a pumper switch that drives the lifting device 4 to lift the working device. By pressing the upper portion of the operation switch 31, the working device is raised, and by pressing the lower portion of the operation switch 31, the working device is lowered.
The operation switch 32 is an auto/manual switching switch for automatic transmission. By pressing the operation switch 32, the automatic transmission mode and the manual transmission mode are switched. In the automatic shift mode, the optimum vehicle speed stage is automatically selected by electronic control within the range of vehicle speed stages set in advance by the operator. In the manual shift mode, the operator can manually switch the vehicle speed stage.

The operation switches 34 and 35 are engine speed memory switches, and set the speed of the engine 8 to the engine speed pre-stored in the storage section of the control device. By pressing the operation switch 34, the number of revolutions of the engine 8 can be set to the preset first number of revolutions. By pressing the operation switch 35, the rotation speed of the engine 8 can be set to a second rotation speed different from the preset first rotation speed.

As shown in FIGS. 9 to 11, an upright surface 24e of the grip portion 24 is provided with another operation switch 33 different from the operation switches 30, 31, 32, 34, and 35 provided on the operation portion 25. there is Another operation switch 33 provided on the upright surface 24e is a push button switch.
The operation switch 33 is a switch for switching permission/prohibition of rocking of the rocking body 22, and more specifically, it is a sub-transmission restraint switch. By pressing the operation switch 33, the rocking body 22 can be rocked. When the swinging body 22 is swung forward while pressing the operation switch 33, the sub-transmission stage is shifted up, and when swung backward, it is shifted down. In other words, the operation switch 33 is a switch for switching between permission and prohibition of the shift operation by the rocking motion of the rocking body 22 .

As shown in FIG. 9 and the like, the non-slip portion 28 is provided over a range that overlaps at least the operation switches 30, 31, 32, 33, 34, and 35 in the vertical direction. As a result, when the operation switches 30 to 35 are operated with the thumb while the palm of the right hand is applied to the grip portion 24, the operation switches 30 to 35 can be reliably operated because the palm is prevented from slipping. .

As shown in FIGS. 8 and 12, another operation switch 36 different from the operation switches 30, 31, 32, 34, and 35 provided on the operation portion 25 is also provided on the rear surface 24b of the grip portion 24. . The operation switch 36 provided on the rear surface 24b of the grip portion 24 is a push button switch. The operation switch 36 is a shuttle restraint switch for switching permission/prohibition of operation of the operation switch 30, which is a shuttle switch. By operating the operation switch (shuttle switch) 30 while pressing the operation switch (shuttle restraint switch) 36, it is possible to switch between forward and reverse.

The operation switch 36 is arranged at an upper corner portion 24n of the rear surface 24b of the grip portion 24 on the opposite side (right side) of the driver's seat 10. As shown in FIG. The upper corner portion 24n is located behind the corner edge portion 24k of the curved surface 24a of the grip portion 24 and is connected to the corner edge surface 24g.
As shown in FIGS. 8 and 10, the operation switch 36 does not protrude from the rear surface 24b. Therefore, it is possible to prevent the operation switch 36 from being unintentionally pressed when the operation lever 21 is operated by gripping the grip portion 24 . Moreover, it is possible to prevent the operation switch 36 from impairing the feeling of operation when the operation lever 21 is operated by gripping the grip portion 24 .

As shown in FIGS. 8 and 12, the rear surface 24b around the operation switch 36 is formed with an annular raised portion 24b1. The surface of the operation switch 36 is recessed from the inner peripheral edge of the raised portion 24b1. The raised portion 24b1 is raised so as to gradually rise from the outer peripheral side toward the inner peripheral side (the operation switch 36 side). As a result, the finger is naturally guided to the operation switch 36 by sliding the finger along the raised portion 24b1.

As shown in FIGS. 8 and 12, the back surface 24b of the grip portion 24 is provided with a guide recess 37 for guiding a finger toward the operation switch 36. As shown in FIG. The operation switch 36 is operated with the index finger of the right hand while the grip portion 24 is gripped with the right hand. The guide recess 37 guides the index finger of the right hand gripping the grip 24 toward the operation switch 36 .
The guide recess 37 is recessed from the rear surface 24b of the grip portion 24. As shown in FIG. The guide recess 37 has a deepest portion 37a that is the deepest recessed from the back surface 24b, and an inclined portion 37b that is formed around the deepest portion 37a. The inclined portion 37b is inclined so as to become deeper as it approaches the deepest portion 37a. The inclined portion 37b is connected to the outer peripheral edge of the raised portion 24b1 at the upper right portion. Accordingly, by moving the finger along the inclined portion 37b, the finger is guided to the outer peripheral edge of the raised portion 24b1 and guided toward the operation switch 36 by the raised portion 24b1.

The guide recess 37 elongates from the top (front) to the bottom (rear) on the back surface 24b of the grip portion 24 . An outer edge portion 37c of the guide recess 37 forms a closed area on the back surface 24b of the grip portion 24. As shown in FIG. A lower edge portion of the outer edge portion 37c of the guide recess 37 reaches the lower edge portion of the back surface 24b and extends to the back surface of the rear portion 26A of the extension portion 26. As shown in FIG. Of the outer edge 37c of the guide recess 37, the upper edge, left edge and right edge are located inside the upper edge, left edge and right edge of the back surface 24b, respectively. As a result, a non-dented region 24p is formed on the rear surface 24b of the grip portion 24 outside the closed region formed by the outer edge portion 37c of the guide recess 37. As shown in FIG. The non-dented region 24p is around (outside) the outer edge 37c of the guide recess 37. As shown in FIG.

<Elbow rest>
Next, the elbow rest portion 18 will be described.
The elbow rest part 18 is a part where the operator sitting on the driver's seat 10 rests his elbow. All or part (at least the upper surface) of the elbow rest 18 is made of a cushioning material.
As shown in FIGS. 2 to 6, the elbow rest 18 is provided on the rear portion of the armrest 15. As shown in FIGS. The elbow rest 18 is attached to the main body 16 of the armrest 15 and covers the rear part of the upper surface 16a of the main body 16 .

The elbow rest 18 is arranged behind the operation lever 21 . As shown in FIG. 4, the operating lever 21 is deviated to the right with respect to the center of the elbow rest 18 in the width direction of the vehicle body. In other words, in the width direction of the vehicle body, the left end of the operating lever 21 (the left end of the grip 23) is positioned to the right of the left end of the elbow rest 18, and the right end of the operating lever 21 (the right end of the grip 23). is positioned to the right of the right end of the elbow rest 18 .

The elbow rest 18 has an upper surface 18a, a left side 18b, a right side 18c, a front surface 18d and a rear surface 18e. The upper surface 18 a is arranged above the upper surface 16 a of the main body 16 . The upper surface 18a is a substantially flat surface that slopes downward from the front toward the rear. The front surface 18d is a surface extending downward from the front portion of the upper surface 18a, and is inclined forward as it extends downward. The rear surface 18e is a surface extending downward from the rear portion of the upper surface 18a, and is inclined rearward as it extends downward. The left side surface 18b extends downward from the left portion of the upper surface 18a, and is inclined leftward as it extends downward. The left side surface 18b is located to the left of the left side surface 16c of the main body 16. As shown in FIG. The right side surface 18c extends downward from the right portion of the upper surface 18a and is inclined to the right as it extends downward.

A front portion of the elbow rest portion 18 is provided with a sloped surface 18 f that slopes downward from the upper surface 18 a toward the operation tool placement portion 19 . The inclined surface 18 f is provided on the right front portion of the elbow rest portion 18 . The inclined surface 18f is provided on the side (right side) of the elbow rest 18 on which the recessed portion 15a is provided in the width direction of the armrest 15 (the width direction of the vehicle body). A right edge portion of the inclined surface 18f is connected to the right side surface 18c. In addition, the length (width) of the inclined surface 18f is set to be half or more of the length (width) of the armrest 15 in the width direction of the armrest 15 (the width direction of the vehicle body). As shown in FIG. 13, the inclined surface 18f overlaps a sixth front operating tool 66 to a tenth front operating tool 70, which will be described later, in the width direction of the armrest 15 (range from one side upper surface 15A to intermediate upper surface 15B). ) extends over

Since the inclined surface 18 f that slopes downward toward the operating tool placement portion 19 is provided in the front portion of the elbow rest portion 18 , the operating tool placement portion 19 is positioned lower than the elbow rest portion 18 . This facilitates access to the operating tools arranged on the side and improves the operability of these operating tools. In particular, the operability of the operating tools (sixth front operating tool 66 to tenth front operating tool 70) on the side (right side) where the inclined surface 18f is provided is greatly improved.

As shown in FIG. 4, the inclined surface 18f is provided in a range overlapping the recessed portion 15a in the front-rear direction. Specifically, the inclined surface 18f is provided in a region between the front end portion and the rear end portion of the recessed portion 15a in the front-rear direction.
As shown in FIGS. 3 and 6, the elbow rest 18 is connected to the main body 16 by a hinge 38 at the lower portion of the right side surface 18c. As a result, the elbow rest 18 can rotate upward with the hinge 38 as a fulcrum. By rotating the elbow rest part 18 upward, the elbow rest part 18 can be retracted to the upper right side of the main body 16 . As a result, as shown in FIG. 15, the rear upper surface 16a of the main body 16 covered by the elbow rest 18 can be opened.

As shown in FIGS. 15 and 16, a plurality of operating tools are provided on the upper surface 16a of the rear portion of the main body 16 covered by the elbow rest 18. As shown in FIGS. Hereinafter, the plurality of manipulators will be referred to as "rear manipulator group 40". In FIG. 15, the rear operation tool group 40 is shown surrounded by a virtual line (chain line) with reference numeral 40 attached. The rear operating tool group 40 is arranged at the rear of the main body 16 . The rear operating tool group 40 is covered by the elbow rest 18 when the elbow rest 18 is in use, and is exposed and operable when the elbow rest 18 is opened.

The rear operation tool group 40 includes an operation tool group 40A and an operation tool group 40B having different operation modes. Hereinafter, for convenience of explanation, the operating tool group 40A will be referred to as the "third operating tool group 40A", and the operating tool group 40B will be referred to as the "fourth operating tool group 40B".
The third manipulator group 40A includes a plurality of manipulators operated by pressing. Specifically, the third operating tool group 40A includes a first rear operating tool 41, a second rear operating tool 42, a third rear operating tool 43, a fourth rear operating tool 44, a fifth rear operating tool 45, a sixth A rear operating tool 46 , a seventh rear operating tool 47 and an eighth rear operating tool 48 are included. The first rear operating tool 41 to the eighth rear operating tool 48 are push button switches (tactile switches) that are operated by pressing.

The fourth operating tool group 40B includes a plurality of operating tools that are operated by rotating around the vertical axis (vertical axis). Specifically, the fourth operating tool group 40B includes a ninth rear operating tool 49 , a tenth rear operating tool 50 , an eleventh rear operating tool 51 , a twelfth rear operating tool 52 and a thirteenth rear operating tool 53 . The ninth rear operating tool 49 to the thirteenth rear operating tool 53 are rotary dials that are operated by rotating around the vertical axis.

The third operating tool group 40A (first rear operating tool 41 to eighth rear operating tool 48) is arranged on the left side of the upper surface 16a of the main body 16 (driver's seat 10 side). The fourth operation tool group 40B (the ninth rear operation tool 49 to the thirteenth rear operation tool 53) is arranged on the right side of the upper surface 16a of the main body 16 (on the side opposite to the driver's seat 10 side). That is, the third operating tool group 40A (first rear operating tool 41 to eighth rear operating tool 48), which are push button switches, are arranged on the left side of the upper surface 16a (on the side of the driver's seat 10), and the fourth operating tool, which is a rotary dial. An operating tool group 40B (the ninth rear operating tool 49 to the thirteenth rear operating tool 53) is arranged on the right side of the upper surface 16a (on the side opposite to the driver's seat 10 side). As a result, the operator sitting on the driver's seat 10 can easily operate the push button switch and the rotary dial by natural finger movements.

The first rear operation tool 41 is an automatic shift mode changeover switch, and when pressed, it switches to an automatic shift mode suitable for running. The second rear operation tool 42 is an automatic transmission mode changeover switch, and when pressed, it becomes an automatic transmission mode suitable for field work. The third rear operating tool 43 is an ON/OFF switch for a control mode that keeps the engine speed constant. The fourth rear operation tool 44 is a DHC switch, which facilitates gear shift operation according to the engine load. The fifth rear operating tool 45 and the sixth rear operating tool 46 are engine memory adjustment switches, and set rotation speeds (first rotation speed, second rotation speed) by engine speed memory switches (operation switches 34, 35). adjust. Specifically, the fifth rear operating tool 45 decreases the set number of revolutions, and the sixth rear operating tool 46 increases the set number of revolutions. The seventh rear operating tool 47 is a switch for switching between draft control and position control. The eighth rear operation tool 48 is a spare switch, and functions are added as necessary.

As shown in FIGS. 15 and 16, a first rear operating tool 41 and a second rear operating tool 42, a third rear operating tool 43 and a fourth rear operating tool 44, a fifth rear operating tool 45 and a sixth rear operating tool. 46 , the seventh rear operating tool 47 and the eighth rear operating tool 48 are arranged in the width direction of the armrest 15 . Also, the first rear operating tool 41, the third rear operating tool 43, the fifth rear operating tool 45, and the seventh rear operating tool 47 are arranged in the front-rear direction. The second rear operating tool 42, the fourth rear operating tool 44, the sixth rear operating tool 46, and the eighth rear operating tool 48 are arranged in the front-rear direction.

The ninth rear operating tool 49 is a rotary dial for adjusting the auto shift mode sensitivity. The tenth rear operating tool 50 is a rotary dial for setting the upper limit of engine speed. The eleventh rear operating tool 51 is a rotary dial for draft ratio adjustment. The twelfth rear operating tool 52 is a rotary dial for adjusting the upper limit of 3P (lift arm). The thirteenth rear operating tool 53 is a rotating dial for adjusting the falling speed of the working device.

A plurality of rear operation tools included in the rear operation tool group 40 are, in principle, operation tools that are not used while the vehicle is running. Since the rear operation tool group 40 is covered by the elbow rest part 18 when the work vehicle 1 is traveling, it is possible to prevent unintentional contact and operation during traveling. In addition, since the rear operation tool group 40 can be used by opening the elbow rest part 18 after the work vehicle 1 stops traveling, the operability is not deteriorated even if it is covered with the elbow rest part 18 during traveling. does not occur. However, the specific types and number of rear operation tools included in the rear operation tool group 40 are not limited to the types and number of the rear operation tools described above.

As shown in FIG. 15 , a storage section 55 is provided behind the rear operation tool group 40 . The storage unit 55 has a space recessed from the upper surface 16a of the main body 16, and can store an article such as a smart phone (multifunctional mobile phone) in the space. The storage part 55 is covered with the elbow rest part 18 when the elbow rest part 18 is in use, and articles can be taken in and out with the elbow rest part 18 opened.

<Operating tool placement part>
As shown in FIGS. 2 to 6 and 13 , a plurality of manipulators are arranged in the manipulator placement section 19 . Hereinafter, the plurality of manipulators arranged in the manipulator arrangement portion 19 will be referred to as a "front manipulator group 60". In FIG. 13, the front operating tool group 60 is shown surrounded by a virtual line with reference numeral 60 attached. The front operating tool group 60 is arranged in front of the rear operating tool group 40 . The operation tools included in the front operation tool group 60 arranged in the operation tool placement part 19 are the operation tools that are operated more frequently than the operation tools included in the rear operation tool group 40 covered by the elbow rest part 18. .

The operating tool placement portion 19 is provided at a position closer to the front of the armrest 15 . Specifically, the operation tool placement portion 19 is provided behind the swing operation portion 17 and in front of the elbow rest portion 18 . In other words, the manipulating tool arrangement portion 19 is provided between the swinging manipulating portion 17 and the elbow rest portion 18 . As shown in FIGS. 13 and 14 , the operation tool placement portion 19 includes a first placement portion 19A provided on the upper surface 16a of the main body 16 of the armrest 15 and a side surface (left side surface 16c) of the main body 16 of the armrest 15. and a second placement portion 19B. The first arrangement portion 19A is located on the upper surface of the upper surface 16a of the main body 16 in a portion located between the swing operation portion 17 and the elbow rest portion 18. As shown in FIG. The second placement portion 19B is located on a side surface (a partial side surface 16g described later) located between the swing operation portion 17 and the elbow rest portion 18 among the side surfaces (left side surface 16c) of the main body 16. there is

As shown in FIG. 14, the front operating tool group 60 includes a first operating tool group 60A, a second operating tool group 60B, and a third operating tool group 60C. In FIG. 14, the first operation tool group 60A is indicated by a virtual line with reference numeral 60A, the second operation tool group 60B is indicated by a virtual line with reference numeral 60B, and the third operation tool group 60C is indicated by reference numeral 60C. Each is enclosed by a virtual line.
The first manipulator group 60A is arranged in the rear portion of the first placement portion 19A of the manipulator placement portion 19 . The second operating tool group 60B is arranged in front of the first placement portion 19A of the operating tool placement portion 19 . That is, in the first placement portion 19A of the operation tool placement portion 19, the second operation tool group 60B is arranged in front of the first operation tool group 60A. The third manipulator group 60C is arranged in the second placement portion 19B of the manipulator placement portion 19 . 60 C of 3rd operation-tool groups are located in a line with the width direction of the armrest 15, and are arrange|positioned behind the 2nd operation-tool group 60B in the front-back direction.

First, the first operation tool group 60A will be described.
As shown in FIG. 14, the first operation tool group 60A includes a first front operation tool 61, a second front operation tool 62, a third front operation tool 63, a fourth front operation tool 64, a fifth front operation tool 64, and a fifth front operation tool 64. It comprises a front operating tool 65 , a sixth front operating tool 66 , a seventh front operating tool 67 , an eighth front operating tool 68 , a ninth front operating tool 69 and a tenth front operating tool 70 .

The first to eighth front operating tools 61 to 68 are push button switches (tactile switches) as pressing operating tools. That is, the first manipulator group 60A includes a plurality of manipulators operated by pressing. Specifically, the first front operation tool 61 to the fifth front operation tool 65 are traveling system pressing operation tools that perform operation for running by pressing. The sixth front operating tool 66 to eighth front operating tool 68 are work system pressing operating tools for performing operations related to work by pressing.

The first front operation tool 61 is a 2WD/4WD changeover switch (manual), and can be switched between 2WD and 4WD by pressing it. The second front operating tool 62 is a 2WD/4WD changeover switch (automatic), and when pushed, automatically switches between 2WD and 4WD according to the vehicle speed, the turning angle of the front wheels, and the like. The third front operating tool 63 is a double-speed switch, and when pressed, the front wheels can be rotated quickly during turning to enable a small turn. The fourth front operating tool 64 is a differential lock switch (manual). The fifth front operating tool 65 is a differential lock switch (automatic).

The sixth front operating tool 66 is a 3P link lock switch, and when pressed, can lock the lifting device 4 so that the working device does not descend. The seventh front operating tool 67 and the eighth front operating tool 68 are pumper switches that drive the lifting device 4 to raise and lower the working device. When the seventh front operating tool 67 is pushed, the lifting device 4 lowers the working device. When the eighth front operating tool 68 is pushed, the lifting device 4 raises the working device.

The first to sixth front operation tools 61 to 66 each have a pressing operation part 80, a display part 81 and a projection 82. As shown in FIG. Hereinafter, the operation tool having the pressing operation portion 80, the display portion 81, and the projection 82 may be referred to as "one operation tool".
The first front manipulating tool 61 to sixth front manipulating tool 66 (one manipulating tool) have a rectangular shape having a longitudinal direction (long sides) and a lateral direction (short sides) in a plan view. In the case of this embodiment, the longitudinal direction is the front-rear direction, and the lateral direction is the width direction of the vehicle body. The display portion 81, the protrusion 82, and the pressing operation portion 80 are arranged in this order from the front to the rear.

The pressing operation portion 80 is a portion operated by pressing. The pressing operation portion 80 is a portion that can be pressed (moved by pressing) provided on the other side (rear side) of the projection 82 in the longitudinal direction. A symbol mark (design) M representing the content of the operation is written on the pressing operation portion 80 . Different symbol marks M are printed on the first front operation tool 61 to the sixth front operation tool 66, respectively.

The display unit 81 is a non-pressible (does not move even when pressed) portion provided on one side in the longitudinal direction of the first front operating tool 61 to the sixth front operating tool 66 (one operating tool). . The display unit 81 indicates whether the first front operating tool 61 to the sixth front operating tool 66 (one operating tool) are in an operating state or a non-operating state. The operation state is a state in which the pressing operation portion 80 is pressed (a state in which the function is exhibited). The non-operating state is a state in which the pressing operation portion 80 is not pressed (a state in which the function is not exhibited). The display unit 81 is composed of a lamp such as an LED that can be turned on. The lamps forming the display unit 81 are lit in the operating state and turned off in the non-operating state. In other words, the display unit 81 indicates whether the first to sixth front operating tools 61 to 66 (one operating tool) are in an operating state or a non-operating state by switching between lighting and extinguishing. is an indicator. The operator sees whether the display unit 81 is on or off to determine whether the first front operating tool 61 to the sixth front operating tool 66 (one operating tool) are in the operating state or non-operating state. It is possible to grasp which of the states it is in. In other words, by switching the display on the display unit 81, it is possible to convey feedback regarding the operation to the operator (driver).

Further, the symbol mark M of the pressing operation portion 80 is transparent, and the light of the lamp constituting the display portion 81 passes through the symbol mark M. As shown in FIG. Thereby, the symbol mark M can be visually recognized even at night.
The protrusion 82 is provided between the pressing operation portion 80 and the display portion 81 and partitions the pressing operation portion 80 and the display portion 81 . The protrusion 82 extends linearly between the pressing operation portion 80 and the display portion 81 . The projection 82 separates the symbol mark M and the lamp. That is, the protrusion 82 is provided between the symbol mark and the lamp.

In addition, since the above-described first rear operation tool 41 to fourth rear operation tool 44 and seventh rear operation tool 47 have the pressing operation part 80, the display part 81, and the projection 82, "one operation included in “tools”. The first rear manipulating tool 41 to fourth rear manipulating tool 44 and the seventh rear manipulating tool 47 each have a rectangular shape having a longitudinal direction (long side) and a short side direction (short side) in a plan view. The hand direction is the front-rear direction, and the longitudinal direction is the width direction of the vehicle body. The display portion 81, the projection 82, and the pressing operation portion 80 are arranged in this order from right to left.

The seventh front operating tool 67 and the eighth front operating tool 68 each have a pressing operation part 80 and a projection 82 but do not have a display part 81 . Hereinafter, an operating tool that has the pressing operation portion 80 and the projection 82 but does not have the display portion 81 may be referred to as "another operating tool". The fifth rear operating tool 45 and the sixth rear operating tool 46 are also included in "other operating tools".
The projections 82 of the seventh front operating tool 67 and the eighth front operating tool 68 (other operating tools) are the projections 82 of the first front operating tool 61 to the sixth front operating tool 66 (one operating tool). located in a different position. Specifically, the projections 82 of the seventh front operating tool 67 and the eighth front operating tool 68 (other operating tools) are the first front operating tool 61 to the sixth front operating tool 66 (one operating tool). It is provided at a position farther from the symbol mark M than the protrusion 82 of the tool). The projections 82 of the seventh front operating tool 67 and the eighth front operating tool 68 (other operating tools) are the projections 82 of the first front operating tool 61 to the sixth front operating tool 66 (one operating tool). is closer to the edge (front edge or rear edge) in the longitudinal direction (front-to-rear direction) of the operating tool than to .

The projection 82 provided on the seventh front operating tool 67 and the projection 82 provided on the eighth front operating tool 68 are different in position in the longitudinal direction (front-rear direction) of the operating tool. Specifically, the projection 82 provided on the seventh front manipulating tool 67 is located on one side (front side) in the longitudinal direction of the manipulating tool, and the projection 82 provided on the eighth front manipulating tool 68 It is positioned on the other side (rear side) in the longitudinal direction of the operating tool. That is, in the seventh front operating tool 67 and the eighth front operating tool 68, the protrusions 82 are arranged in opposite directions.

The seventh front operating tool 67 and the eighth front operating tool 68 are operating tools for performing operations in directions opposite to each other. Specifically, the seventh front operating tool 67 and the eighth front operating tool 68 are operating tools (pumper switches) that move (raise or lower) the working device in mutually opposite directions. Therefore, the protrusions 82 are arranged in opposite directions in the operating tools (the seventh front operating tool 67 and the eighth front operating tool 68) for performing operations in mutually opposite directions. As a result, the driver (operator) can operate the operating tool (seventh front operating tool 67, eighth front operating tool 68) by visually and intuitively or by confirming the position of the protrusion 82 with a fingertip. It is possible to grasp the contents of

A seventh front operating tool 67, which is an operating tool for lowering the working device, and an eighth front operating tool 68, which is an operating tool for raising the working device, are arranged side by side in the front-rear direction. Specifically, the seventh front operating tool 67 is arranged forward, and the eighth front operating tool 68 is arranged rearward. The projection 82 of the seventh front manipulating tool 67 arranged forward is positioned on the front side of the manipulating tool, and the projection 82 of the eighth front manipulating tool 68 arranged rearward is positioned on the rear side of the manipulating tool. Therefore, the gap between the projection 82 of the seventh front operating tool 67 and the projection 82 of the eighth front operating tool 68 is wide. As a result, the protrusion 82 of the seventh front operating tool 67 and the protrusion 82 of the eighth front operating tool 68 can be clearly distinguished visually or by the tactile sensation of the fingertip. As a result, the two operation tools 67 and 68 can be clearly distinguished, and the risk of erroneous operation can be reduced.

In addition, the driver can intuitively determine the type of the operating tool based on the difference in the positions of the protrusions 82 and the presence/absence of the display unit 81, thereby improving the operability.
The ninth front manipulating tool 69 and tenth front manipulating tool 70 are rotary manipulating tools that perform operations related to work by rotating around the vertical axis. That is, the front operating tool group 60 includes rotary operating tools (the ninth front operating tool 69 and the tenth front operating tool 70) that perform operations related to work by rotating around the vertical axis. The rotary manipulators 69 and 70 are arranged at the right rear portion of the manipulator arrangement portion 19 . The ninth front operating tool 69 is a draft ratio adjustment dial. The tenth front operating tool 70 is a plowing depth adjusting dial that drives the lifting device 4 to adjust the working depth of the working device (plowing depth of the cultivator).

As shown in FIGS. 13 and 14, the surface (upper surface 16a) of the armrest 15 includes one upper surface 15A, an intermediate upper surface 15B, and the other upper surface 15C. One-side top surface 15A, intermediate top surface 15B, and other-side top surface 15C are provided in operation implement placement portion 19 . In other words, the upper surface provided with the operating tool placement portion 19 has a one-side upper surface 15A, an intermediate upper surface 15B, and the other-side upper surface 15C. The upper surface 15A on one side, the upper surface 15B on the other side, and the upper surface 15C on the other side are regions in the rear part of the first arrangement portion 19A of the operation tool arrangement portion 19, where the first operation tool group 60A is arranged.

The one-side upper surface 15A is a region provided on the side opposite to the driver's seat 10 side (the side on which the recessed portion 15a is provided). The upper surface 15C on the other side is a region provided on the side of the driver's seat 10 (the side opposite to the side on which the recessed portion 15a is provided). The intermediate upper surface 15B is a region provided between the one-side upper surface 15A and the other-side upper surface 15C.
As shown in FIGS. 2 and 3, the one-side upper surface 15A, the intermediate upper surface 15B, and the other-side upper surface 15C are different in height. Specifically, the intermediate upper surface 15B is higher than the one-side upper surface 15A and lower than the other-side upper surface 15C. That is, one side top surface 15A, intermediate top surface 15B, and other side top surface 15C are formed in a stepped shape, with one side top surface 15A being the lowest, intermediate top surface 15B being the second lowest, and the other side top surface 15C being the highest. Therefore, in the width direction of the armrest 15, the upper surface 16a on which the operation tool placement portion 19 is provided has the height of the region on the side where the recessed portion 15a is provided (one side upper surface 15A). It is lower than the height of the area on the opposite side (the other side upper surface 15C). The height of the intermediate upper surface 15B is substantially equal to the height of the lower end (front end) of the inclined surface 18f of the elbow rest 18. As shown in FIG.

On the one side upper surface 15A and the intermediate upper surface 15B, work-related operating tools (sixth front operating tool 66 to tenth front operating tool 70) for performing operations related to work are arranged. Sixth to eighth front manipulators 66 to 68 of the work system manipulators are arranged on the intermediate upper surface 15B. A ninth front operating tool 69 and a tenth front operating tool 70 among the work system operating tools are arranged on the upper surface 15A on one side. On the upper surface 15C on the other side, a travel system operating tool for performing operations related to travel is arranged. Specifically, travel system pressing operating tools (first front operating tool 61 to fifth front operating tool 65) are arranged on the other side upper surface 15C.

In this manner, the upper surface provided with the operation tool placement portion 19 is provided with a plurality of regions having different heights (the one side upper surface 15A, the intermediate upper surface 15B, and the other side upper surface 15C), and the operation tools having different functions are provided. It is divided into several areas. As a result, the driver can easily identify the operating tool visually because the operating tool can be identified by the height of the upper surface on which the operating tool is provided. In addition, it is also possible to identify the operation tool by recognizing the height with a finger without relying on sight.

In addition, the first front operation tool 61 to the fifth front operation tool 65 are arranged on the same upper surface (the other side upper surface 15C). This improves the operability of the operation related to traveling. Further, the sixth front operating tool 66, the seventh front operating tool 67, and the eighth front operating tool 68 are arranged on the same upper surface (intermediate upper surface 115B). Thereby, the operability of the operation of the lifting device 4 is improved.

Next, the second operating tool group 60B will be described.
As shown in FIG. 14 , the second operating tool group 60B includes an eleventh front operating tool 71 , a twelfth front operating tool 72 , and a thirteenth front operating tool 73 . The eleventh front operation tool 71 is an operation tool that is rotatably operated around a horizontal axis (horizontal axis extending substantially in the width direction of the vehicle body). The twelfth front manipulating tool 72 and the thirteenth front manipulating tool 73 are manipulating tools that are swung about a horizontal axis (horizontal axis extending substantially in the width direction of the vehicle body). That is, the second operating tool group 60B includes a plurality of operating tools that are operated by rotating or swinging around the horizontal axis.

The eleventh front operation tool 71 is a travel system operation tool for performing operations related to travel by rotating around a horizontal axis, and is composed of a rotary dial. In the case of this embodiment, the eleventh front operating tool 71 is an accelerator dial for increasing or decreasing the number of revolutions of the engine 8 .
The twelfth front manipulating tool 72 and the thirteenth front manipulating tool 73 are work system manipulating tools that perform operations related to work by swinging around the horizontal axis. Specifically, the twelfth front operating tool 72 and the thirteenth front operating tool 73 are PTO clutch control switches for connecting or disconnecting the PTO clutch. The twelfth front operating tool 72 is a rear PTO clutch control switch. The thirteenth front operating tool 73 is a front PTO clutch control switch.

An eleventh front operating tool 71, which is a traveling system operating tool, and a twelfth front operating tool 72 and a thirteenth front operating tool 73, which are work system operating tools, are arranged side by side in the width direction of the armrest 15. . The eleventh front operation tool 71, which is a traveling system operation tool, is arranged on the driver's seat 10 side. A twelfth front operating tool 72 and a thirteenth front operating tool 73, which are work-related operating tools, are arranged on the side opposite to the driver's seat 10 side. Further, the swinging direction of the twelfth front operating tool 72 and the thirteenth front operating tool 73, which are working system operating tools, and the rotating direction of the eleventh front operating tool 71, which is a traveling system operating tool, are different from each other in plan view. are parallel in

As shown in FIGS. 2 to 6 and 13, the driving system operating tool (the eleventh front operating tool 71) and the work system operating tool (the twelfth front operating tool 72 and the thirteenth front operating tool 73) are combined. A protrusion 84 is provided between them. The projection 84 protrudes so as to separate the traveling system operating tool (eleventh front operating tool 71) and the work system operating tool (twelfth front operating tool 72, thirteenth front operating tool 73). The projection 84 extends parallel to the swinging direction of the work system operating tools (the twelfth front operating tool 72 and the thirteenth front operating tool 73) and the rotating direction of the traveling system operating tool (the eleventh front operating tool 71). ing. The height of the projection 84 gradually increases from rear to front.

A front portion 84a of the projection 84 (a portion forward of the eleventh front operating tool 71, the twelfth front operating tool 72, and the thirteenth front operating tool 73) is connected to the side surface (left surface 20d) of the base 20. ing. A front portion 84 a of the projection 84 extends forward of the eleventh front portion operating tool 71 . The left edge of the front portion 84a of the protrusion 84 is connected to the left side surface 16c of the main body 16. As shown in FIG. The front edge of the front portion 84a of the protrusion 84 is connected to the front surface 16e of the main body 16. As shown in FIG.

Thus, by providing the projection 84 between the traveling system operating tool (the eleventh front operating tool 71) and the work system operating tool (the twelfth front operating tool 72 and the thirteenth front operating tool 73), It is possible to prevent erroneous operation due to erroneous contact with the other operating tool when operating either one of the traveling operating tool and the working operating tool.
As shown in FIG. 14 , the twelfth front operating tool 72 and the thirteenth front operating tool 73 are provided with a display section 81 . The display unit 81 is composed of a lamp such as an LED that can be turned on. The lamps forming the display unit 81 are lit in the operating state and turned off in the non-operating state. In other words, the display unit 81 is an indicator that indicates whether the twelfth front operating tool 72 and the thirteenth front operating tool 73 are in an operating state or a non-operating state by switching between lighting and extinguishing. The operator can determine whether the twelfth front operating tool 72 and the thirteenth front operating tool 73 are in the operating state or the non-operating state by seeing whether the display unit 81 is in the lit state or in the off state. It is possible to grasp whether there is

The twelfth front operating tool 72 and the thirteenth front operating tool 73 have a symbol mark M next to the display unit 81 that indicates the content of the operation. The symbol mark M is transmissive, and the light from the lamp forming the display section 81 passes through the symbol mark M. As shown in FIG. Thereby, the symbol mark M can be visually recognized even at night.
As shown in FIGS. 2 and 3, a first recess 76 is provided around the twelfth front operating tool 72 . A second recess 77 is provided around the thirteenth front operating tool 73 . The first recess 76 and the second recess 77 are recessed downward with respect to the upper surface 16 a of the main body 16 . A lower portion of the twelfth front operating tool 72 is positioned within the first recess 76 . A lower portion of the thirteenth front operating tool 73 is positioned within the second recess 77 . Therefore, the twelfth front operating tool 72 and the thirteenth front operating tool 73 have a low protrusion height from the upper surface 16a. Thereby, it is possible to prevent the hand of the person operating the operating lever 21 from hitting the twelfth front operating tool 72 and the thirteenth front operating tool 73 .

As shown in FIG. 2, the eleventh front operating tool (accelerator dial) 71 has a rotating body 71a and a knob 71b. The rotating body 71a protrudes upward in an arcuate shape from the upper surface of the armrest 15 in a side view. The knob portion 71b protrudes from the upper surface of the rotating body 71a. The rotating body 71a is attached so as to be rotatable around a sideways (horizontal) support shaft arranged inside the armrest 15 . By pinching the knob portion 71b and moving it forward or backward, the rotating body 71a rotates around the support shaft. When the knob portion 71b is moved forward, the rotation speed of the engine 8 increases. When the knob 71b is moved rearward, the rotation speed of the engine 8 is decreased.

The front operation tool group 60 and the rear operation tool group 40 may be arranged on separate substrates, but may be arranged on one substrate. Specifically, all of the front operation tool group 60 and all of the rear operation tool group 40 can be arranged on one board. Also, part of the front operation tool group 60 and all of the rear operation tool group 40 can be arranged on one board. Also, all of the front operation tool group 60 and part of the rear operation tool group 40 can be arranged on one board. Also, part of the front operation tool group 60 and part of the rear operation tool group 40 can be arranged on one board.

Among the operation tools included in the front operation tool group 60, the rotary operation tools (the ninth front operation tool 69 and the tenth front operation tool 70) that are operated by rotating around the vertical axis are attached to the main body 16 of the armrest 15. is arranged in a region on one side (the side opposite to the driver's seat 10 side) of the upper surface 16a. Further, among the operation tools included in the rear operation tool group 40, the rotary operation tools (the ninth rear operation tool 49 to the thirteenth rear operation tool 53) that are operated by rotating around the vertical axis are also arranged on one side of the upper surface 16a. side (on the side opposite to the driver's seat 10 side). In other words, the rotary operation tool operated by rotation about the vertical axis is arranged in a region on one side of the upper surface 16 a of the body 16 of the armrest 15 . As a result, the movement of the fingers of the right hand (the movement of pinching and turning with the thumb and other fingers) for the rotational operation around the vertical axis can be performed naturally and smoothly.

Of the operating tools included in the front operating tool group 60, the pressing operating tools (first front operating tool 61 to eighth front operating tool 68) that are operated by pressing are placed on the upper surface 16a of the main body 16 of the armrest 15. It is arranged in the region on the other side (driver's seat 10 side). Further, among the operation tools included in the rear operation tool group 40, the pressing operation tools (the first rear operation tool 41 to the eighth rear operation tool 48) that are operated by pressing are also located on the other side of the upper surface 16a (the driver's seat). 10 side). In other words, the pressing operation tool is arranged in a region on the other side of the upper surface 16 a of the main body 16 of the armrest 15 . As a result, since the pressing operation tool is arranged on the side closer to the thumb and index finger, the pressing operation tool can be operated smoothly.

However, the specific types and number of front operation tools included in the front operation tool group 60 are not limited to the types and number of the front operation tools described above.
Next, the third operating tool group 60C will be described.
As shown in FIGS. 13 and 14, the third operating tool group 60C is arranged side by side with the first operating tool group 60A in the width direction of the vehicle body. The third operating tool group 60</b>C includes a fourteenth front operating tool 74 and a fifteenth front operating tool 75 . The fourteenth front operating tool 74 and the fifteenth front operating tool 75 are pressing operating tools for performing operations related to running by pressing. Specifically, the fourteenth front operating tool 74 and the fifteenth front operating tool 75 are operation switches that, when pressed, cause the transmission (main transmission) to accelerate or decelerate. Specifically, the fourteenth front operating tool 74 is a speed increasing switch that performs a speed increasing operation when pressed. The fifteenth front operating tool 75 is a deceleration switch that performs a deceleration operation when pressed. These operating switches are push button switches.

The control device controls driving of the transmission (main transmission) based on the operation of the operation switches (the fourteenth front operation tool 74 and the fifteenth front operation tool 75). Specifically, when the fourteenth front operating tool 74 is pressed, the control device causes the speed change device to perform a speed increasing operation, and when the fifteenth front operating tool 75 is pressed, the control device causes the speed change device to perform a speed increasing operation. Causes the device to perform a deceleration maneuver.
As described above, the operating lever 21 is a lever that causes the transmission (main transmission) to accelerate or decelerate by swinging forward or backward. Therefore, the operation switch composed of the fourteenth front operation tool 74 and the fifteenth front operation tool 75 has the same function as the operation lever 21 (main shift function). Therefore, the driver can also perform a gear shift operation for causing the transmission (main transmission) to accelerate or decelerate by operating the gear shift operation lever 21, or by operating the fourteenth front operation tool 74 or the 15 can also be executed by operating the front operating tool 75 . In other words, the operating lever 21 and the operating switches (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) are selectively used during the main shift operation.

The operating switches (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) are self-returning, which automatically returns from the operating position (pressed position) to the non-operating position (position before pressing) when the operation is stopped. type switch. When the operating switches (14th front operating tool 74, 15th front operating tool 75) are pressed to the operating position, the transmission is turned on and gear shifting is executed. When the front operating tool 74 and the fifteenth front operating tool 75 are released, the operation switches 74 and 75 return to the non-operating position, the transmission is turned off, and no shift is performed.

As shown in FIGS. 2 , 4 , 5 , 13 and 14 , the fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged on the side surface of the main body 16 of the armrest 15 . Specifically, the fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged on the side surface of the armrest 15 on the side of the driver's seat 10 (the left side surface 16c of the main body 16).
Since the fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged on the side surface of the armrest 15 in this manner, when the driver drives the tractor 1 while looking back, the driver can move his/her arms forward. Acceleration or deceleration operation can be performed without stretching out (without gripping the operation lever 21), and the operability is excellent. For example, when the driver looks back and sees the working condition of the working device connected to the rear part of the tractor 1 and accelerates or decelerates, the comfort of the driver's operation can be improved.

The fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged behind the operating lever 21 and in front of the elbow rest 18 . The fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged at positions closer to the elbow rest part 18 than the operating lever 21 .
Of the side surface of the armrest 15 on the side of the driver's seat 10 (the left side surface 16c of the main body 16), the side surface of the portion where the 14th front operation tool 74 and the 15th front operation tool 75 are arranged (referred to as "partial side surface 16g") is connected to one side upper surface 15A. The upper edge of the partial side surface 16g is connected to the left edge of the one side upper surface 15A. The front edge of the partial side surface 16g is connected to the front edge of the one side upper surface 15A. A boundary portion between the partial side surface 16g and the one side upper surface 15A is gently curved.

As shown in FIGS. 2 and 5, the partial side surface 16g extends from a lower position to a higher position than the upper surface 16a. The partial side surface 16g is inclined so as to move away from the driver's seat 10 (to the right) as it goes from the rear to the front. Further, the partial side surface 16g is inclined so as to move away from the driver's seat 10 (to the right) as it goes upward from below. This makes it easier to access the fourteenth front operating tool 74 and the fifteenth front operating tool 75 arranged on the partial side surface 16g from above the driver's seat 10 side (upper left). Therefore, the driver (operator) can easily press the fourteenth front operating tool 74 and the fifteenth front operating tool 75 by extending the thumb of the right hand from the upper left.

The fourteenth front operating tool (speed-up switch) 74 and the fifteenth front operating tool (deceleration switch) 75 are arranged side by side in the front-rear direction on the side surface (partial side surface 16g) of the armrest 15 . Specifically, the fourteenth front operating tool 74 is arranged forward, and the fifteenth front operating tool 75 is arranged rearward. As a result, the fourteenth front operating tool (speed-up switch) 74 and the fifteenth front-side operating tool (deceleration switch) 75 can be selectively operated simply by moving the thumb back and forth, resulting in operability. is superior.

The fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged so that the switch located in the front is higher than the switch located in the rear. That is, the fourteenth front operating tool 74 is arranged above the fifteenth front operating tool 75 . As a result, the operation switch (14th front operation tool 74) arranged on the far side (front) from the elbow rest 18 is positioned upward, so that the operation switch (14th front operation tool 74) The thumb can reach easily, and the operability is improved.

As shown in FIG. 4, the swing axis (swing body 22) of the operating lever 21 is located on the side of the armrest 15 on the side of the driver's seat 10 (the left side 16c of the main body 16) opposite to the side of the driver's seat 10 ( It is arranged at a position close to the right side surface 16d) of the main body 16. As shown in FIG. That is, the swing shaft (rocking body 22) of the operating lever 21 is offset in the width direction of the vehicle body to the side opposite to the partial side surface 16g on which the fourteenth front operating tool 74 and the fifteenth front operating tool 75 are arranged. ing. As a result, the operation lever 21 and the operation switches (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) having the same function can be separated from each other to promote selective use.

19 and 20 show the operation of the operation lever 21, the operation of the operation switches (the fourteenth front operation tool 74 and the fifteenth front operation tool 75), and the operation of the transmission (main transmission) by the control device. is a diagram showing the relationship of
As shown in part A of FIG. 19, the control device is such that one of the operation lever 21 and the operation switch (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) is in the speed increasing operation position (ON). ) and the other is in the operation position (ON) for the deceleration operation, the time difference S1 between when one is in the operation position and when the other is in the operation position is less than a predetermined time (for example, less than 10 ms). In some cases, both the operation of the operation lever 21 and the operation switches (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) are disabled (the operation is not accepted), and the transmission is shifted (accelerated or decelerated). ) is not executed.

As shown in parts A and B of FIG. 20, the control device is such that one of the operating lever 21 and the operating switches (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) is operated for acceleration operation. When the position (ON) and the other position (ON) for the deceleration operation, the time difference S2 between when one of the positions is in the operating position and when the other is in the operating position is equal to or longer than a predetermined time (for example, 10 ms). above), the operation of the first operating position is validated (operation is accepted), and the operation of the latter operating position is invalidated (operation is not accepted).

Specifically, in part A, the control device validates the speed-up operation, which is the operation to reach the operation position first, and invalidates the deceleration operation, which is the operation to the operation position later. Cause the device to accelerate. In part B, the control device enables the deceleration operation, which is the operation to reach the operation position first, and disables the speed-up operation, which is the operation to reach the operation position later, so that the transmission is decelerated. Let

As shown in part B of FIG. 19, the control device is such that one of the operating lever 21 and the operating switch (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) is in the speed increasing operation position (ON). ) and the other is in the operating position (ON) of the speed increasing device, the time difference S1 between when one is in the operating position and when the other is in the operating position is less than a predetermined time (for example, less than 10 ms). Even so, the speed increasing operation is validated and the transmission is made to execute speed increasing. That is, the control device is such that one of the operating lever 21 and the operating switches (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) is in the speed increasing operation position and the other is in the speed increasing device operating position. When this is the case, the transmission is made to increase speed regardless of the time difference between when one shifts to the operating position and when the other shifts to the operating position.

As shown in part C of FIG. 19, the control device is such that one of the operation lever 21 and the operation switch (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) is in the operation position (ON) for deceleration operation. and the other is also in the operation position (ON) for the deceleration operation, the time difference S1 between when one is in the operation position and when the other is in the operation position is less than a predetermined time (for example, less than 10 ms). However, the deceleration operation is validated and the transmission is made to execute deceleration. That is, the control device sets one of the operation lever 21 and the operation switch (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) to the operation position for the deceleration operation and the other to the operation position for the deceleration operation. deceleration is executed by the transmission irrespective of the time difference between when one shifts to the operating position and when the other shifts to the operating position.

20, after both the operating lever 21 and the operating switches (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) are in the operating position (ON), the control device until both the operating lever 21 and the operating switches (14th front operating tool 74, 15th front operating tool 75) are in the non-operating position (OFF), the next operation of the operating lever 21 or the operating switch (14th The operation (see arrow C1) of the front operation tool 74, the fifteenth front operation tool 75) is not accepted (the operation is invalidated).

As shown in part D of FIG. 20, the control device operates after both the operating lever 21 and the operating switches (the fourteenth front operating tool 74 and the fifteenth front operating tool 75) are in the operating position (ON). When both the lever 21 and the operation switches (14th front operation tool 74, 15th front operation tool 75) are in the non-operation position (OFF), the next operation of the operation lever 21 or the operation switch (14th front operation tool) is performed. 74, receives the operation (see arrow D1) of the fifteenth front operation tool 75 (enables the operation).

<Relationship between the operation direction of the operation tool and the driver's seat, etc.>
As shown in FIG. 1, the driver's seat 10 is positioned on an extension line L1 of the swinging direction of the operating lever 21 in plan view. Further, in a plan view, the driver's seat 10 is positioned on an extension line L2 in the rotational direction of the eleventh front operation tool 71 (accelerator dial), which is a driving system operation tool. As can be understood from the directions of the extension lines L1 and L2, in a plan view, the swinging direction of the operating lever 21 and the rotating direction of the eleventh front operating tool 71 are slightly inclined (shifted) with respect to the front-rear direction. , and the direction moves toward the driver's seat 10 side (left side) toward the rear. The extension line L1 in the swinging direction of the operating lever 21 is a line that passes through the swinging body 22 of the operating lever 21 in plan view.

Further, in plan view, on the extension line L3 in the direction in which the plurality of pressing operation tools (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) provided on the side surface (partial side surface 16g) of the armrest 15 are arranged. A driver's seat 10 is located. As can be understood from the direction of the extension line L3, in plan view, the direction in which the pressing operation tools (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) are arranged is inclined (shifted) with respect to the front-rear direction. ) direction, which shifts toward the driver's seat 10 side (left side) toward the rear.

Further, the driver's seat 10 is positioned on the extension line L4 in the longitudinal direction of the surface (second surface) 25a of the operation portion 25 of the operation lever 21 . The surface (second surface) 25a is an attachment surface provided with press operation tools (operation switches 30, 32) and the like for performing operations related to running by pressing. The longitudinal direction of the surface (second surface) 25 a of the operating portion 25 is parallel to the longitudinal direction of the operation switches 30 and 31 . The longitudinal direction is also a direction parallel to the longitudinal direction of the upright surface 24e.
As can be understood from the direction of the extension line L4, the longitudinal direction of the surface (second surface) 25a of the operation portion 25 in plan view is slightly inclined (shifted) with respect to the front-rear direction, and as it goes rearward, The angle of inclination (deviation) of the direction of the extension lines L1, L2, L3, and L4 with respect to the longitudinal direction (front-rear direction) of the armrest 15, which is the direction of shifting to the driver's seat 10 side (left side), is an acute angle (for example, about 10 to 30 degrees). ° range).

As described above, the plurality of pressing operation tools (the 14th front operation tool) provided on the side surface of the armrest 15 on the extension line L1 in the swinging direction of the operation lever 21 and the extension line L2 in the rotation direction of the eleventh front operation tool 71 . The driver's seat 10 is positioned on an extension line L3 in the direction in which the front operation tool 74 and the fifteenth front operation tool 75 are arranged, and on an extension line L4 in the longitudinal direction of the second surface 25a. As a result, the direction of the arm extended from the driver's seat 10 and the extension lines L1, L2, L3, and L4 are substantially parallel. Therefore, it becomes easier for the driver who reaches out from the driver's seat 10 to operate the operating tool.

At least one of the backrest portion 10a and the seat portion 10b of the driver's seat 10 may be positioned on the extension lines L1, L2, L3, and L4. That is, both the backrest portion 10a and the seat portion 10b may be positioned on the extension lines L1, L2, L3, and L4, or only the backrest portion 10a may be positioned on the extension lines L1, L2, L3, and L4. Alternatively, only the seat portion 10b may be positioned on the extension lines L1, L2, L3, and L4. If the position of the armrest 15 with respect to the driver's seat 10 is adjustable, the driver's seat 10 may be positioned on the extension lines L1, L2, L3, and L4 at least at one of the positions of the armrest 15.

Moreover, the extension lines L1, L2, L3, and L4 extend substantially parallel to the inclined surface 16c1 of the armrest 15 in plan view. Further, extension lines L1 and L2 of the swinging direction of the operating lever 21 and the rotating direction of the eleventh front operating tool 71 (accelerator dial) 11, which is a traveling system operating tool, extend from the longitudinal direction of the armrest 15 in plan view. tilted. The direction in which the pressing operation tools (the fourteenth front operation tool 74 and the fifteenth front operation tool 75) are arranged is inclined with respect to the longitudinal direction of the armrest 15 in plan view. The longitudinal direction of the armrest 15 is the front-rear direction, and the driver's seat 10 is not positioned on the extension line of the armrest 15 in the longitudinal direction.

Further, in a plan view, the swinging direction of the twelfth front operating tool 72 and the thirteenth front operating tool 73, which are working system operating tools, is the same as the rotating direction of the eleventh front operating tool 71, which is a traveling system operating tool. parallel. As a result, the direction in which the hand is extended from the driver's seat 10 and the swinging direction of the twelfth front operating tool 72 and the thirteenth front operating tool 73 are substantially parallel to each other. 13, the operation of the front operation tool 73 becomes easier. Further, in a plan view, the longitudinal direction of the operation switches 30 and 31 is slightly deviated from the front-rear direction, and moves toward the driver's seat 10 side (left side) toward the rear. As a result, the direction of the arm when reaching out from the driver's seat 10 and the longitudinal direction of the operation switches 30 and 31 are substantially parallel. Therefore, the operation switches 30 and 31, which are seesaw switches, can be easily operated by the driver who reaches out from the driver's seat 10 to operate.

<effect>
The work vehicle described above has the following effects.
The work vehicle 1 includes a driver's seat 10, an armrest 15 provided on the side of the driver's seat 10, and a transmission for changing the traveling speed. and operation switches 74 and 75 that cause the transmission to accelerate or decelerate when pressed.
According to this configuration, even if it is difficult to operate the operation lever 21 due to the driver's posture, etc., the shift operation can be performed by operating the operation switches 74 and 75 that cause the transmission to accelerate or decelerate by pressing. can do well. For example, when a driver sitting in the driver's seat 10 performs a gear shift operation while looking back, the operator can press the operation switches 74 and 75 instead of the operation lever 21 to perform the gear shift operation.

The operation lever 21 is provided to protrude upward from the upper surface of the armrest 15 , and the operation switches 74 and 75 are arranged on the side surfaces of the armrest 15 .
According to this configuration, even if the driver is in a posture where it is difficult to reach above the armrest 15, the operation switches 74 and 75 arranged on the side surface of the armrest 15 can be pressed to perform the shift operation.
Further, the operation switches 74 and 75 are arranged on the side surface 16c of the armrest 15 on the driver's seat 10 side.

According to this configuration, when a driver sitting in the driver's seat 10 performs a gear shift operation while looking back, the operator can easily press the operation switches 74 and 75 arranged on the side surface 16c of the armrest 15 to perform the gear shift operation. can be done.
The armrest 15 is provided with an elbow rest portion 18 on which a driver who is seated in the driver's seat 10 rests his or her elbows. It is arranged in front of the elbow rest part 18 .
According to this configuration, when a driver sitting on the driver's seat 10 performs a gear shift operation while looking back, the operation switch located in front of the elbow rest 18 of the armrest 15 is placed on the elbow rest 18 of the armrest 15 with the arm resting on the elbow rest 18 . 74 and 75 can be easily pressed to perform a shift operation.

The operation switches 74 and 75 include a speed-up switch 74 for speed-up operation and a deceleration switch 75 for deceleration operation. arranged in the same direction.
According to this configuration, since the speed-up switch 74 and the speed-down switch 75 are arranged at different distances from the elbow rest 18, it is possible to prevent the two switches from being confused and operated.

Further, the speed-up switch 74 and the speed-reduction switch 75 are arranged so that the switch positioned in front is higher than the switch positioned in the rear.
According to this configuration, since the operation switch 74 arranged on the far side (front) from the elbow rest 18 is positioned upward, the operation switch 74 can be easily reached with the thumb, and the operability is improved.

Moreover, the operation switches 74 and 75 are push button switches.
According to this configuration, the operation switches 74 and 75 can be easily operated, so that even when the driver sitting on the driver's seat 10 shifts gears while looking back, the operation switches 74 and 75 can be reliably operated. It can be carried out.
Further, the swing shaft (swing body 22) of the operating lever 21 is arranged at a position closer to the side surface 16d on the side opposite to the driver's seat 10 side than the side surface 16c of the armrest 15 on the driver's seat 10 side.

According to this configuration, since the swing shaft 22 of the operating lever 21 is deviated to the side opposite to the operating switches 74 and 75, the operating lever 21 and the operating switches 74 and 75 having the same function are separated from each other. Selective use is encouraged by being placed as
The work vehicle 1 also includes a driver's seat 10 and an armrest 15 provided on the side of the driver's seat 10. The armrest 15 includes an operation lever 21 that is operated by swinging forward or backward to operate the vehicle. , and a traveling system operating tool 71 for performing operations related to traveling by rotating around a horizontal axis, and on respective extension lines L1 and L2 of the swinging direction of the operating lever 21 and the rotating direction of the traveling system operating tool 71 in a plan view. , the driver's seat 10 is located.

According to this configuration, the armrest 15 is provided with both the operation lever 21 for performing the operation related to running by swinging forward or backward, and the running system operating tool 71 for performing the operation related to running by rotating about the horizontal axis. In addition, since the driver's seat 10 is positioned on the respective extension lines L1 and L2 of the swinging direction of the operating lever 21 and the rotating direction of the traveling system operation tool 71, the driver seated on the driver's seat 10 can stretch his or her arms. The swinging direction of the operating lever 21 and the rotating direction of the traveling system operating tool 71 are nearly parallel to each other, and the operating tools (the operating lever 21 and the traveling system operating tool 71) for performing operations related to traveling are excellent in operability. .

Extension lines L1 and L2 of the swinging direction of the operating lever 21 and the rotating direction of the traveling system operating tool 71 are inclined with respect to the longitudinal direction of the armrest 15 in plan view.
According to this configuration, by arranging the armrests 15 in the longitudinal direction along the driver's seat 10, it becomes easier for the driver to place his/her arms, and the operation tool ( It is possible to improve the operability of the operation lever 21 and the traveling system operation tool 71).

Further, on the side surface 16c of the armrest 15, a plurality of pressing operation tools 74 and 75 for performing operations related to running by pressing are provided. , the driver's seat 10 is located.
According to this configuration, the direction of the arm extended by the driver seated in the driver's seat 10 and the direction in which the plurality of pressing operation tools 74 and 75 are arranged are nearly parallel. Excellent operability of 74 and 75.

Further, the operating lever 21 has a mounting surface (second surface) 25a provided with a pressing operation tool 30 which is a pressing operation tool for performing operations related to running by pressing and is different from the pressing operation tool. The driver's seat 10 is positioned on an extension line L4 in the longitudinal direction of .
According to this configuration, the direction of the arm extended by the driver seated on the driver's seat 10 and the longitudinal direction of the mounting surface 25a are nearly parallel, and the driver seated on the driver's seat 10 can feel the pressure provided on the mounting surface 25a. The operability of the operation tool 30 is excellent.

In addition, the armrest 15 has work system operating tools 72 and 73 for performing work-related operations by swinging about a horizontal axis. A protrusion 84 is provided between the travel system operation tool 71 and the work system operation tools 72 and 73 which are arranged side by side.
According to this configuration, when operating either one of the travel system operation tool 71 and the work system operation tools 72 and 73, it is possible to prevent an erroneous operation caused by erroneously contacting the other operation tool. can do.

Further, the swinging direction of the work system operating tools 72 and 73 and the rotating direction of the traveling system operating tool 71 are parallel in plan view, and the projection 84 is aligned with the swinging direction of the working system operating tools 72 and 73 and the traveling direction. It extends parallel to the rotation direction of the system operating tool 71 .
According to this configuration, the work system operation tools 72 and 73 and the traveling system operation tool 71 can be operated from the same direction, so that the operability is improved. It can be operated by clearly distinguishing it from the traveling system operating tool 71 .

Further, the traveling system operation tool 71 is arranged on the driver's seat 10 side, and the work system operation tools 72 and 73 are arranged on the side opposite to the driver's seat 10 side.
According to this configuration, for example, the travel system operation tool 71 that performs the operation related to running by rotating about the horizontal axis is operated using the thumb or forefinger, and the work system operation tool that performs the operation related to work by swinging about the horizontal axis. Since the 72 and 73 can be operated with fingers other than the thumb, the operability is excellent.

The armrest 15 has a pedestal 20 that supports the base of the operation lever 21. The pedestal 20 is protuberantly provided in the front part of the armrest 15, and the front part 84a of the projection 84 is formed on the side surface (left surface 20d) of the pedestal 20. )It is connected to the.
According to this configuration, the strength of the protrusion 84 and the base 20 can be improved by connecting the protrusion 84 and the base 20 .

The work vehicle 1 also includes a driver's seat 10 and an armrest 15 provided on the side of the driver's seat 10. The armrest 15 is provided on an upper surface 16a and has an operation tool arrangement portion 19 in which an operation tool is arranged. and a recessed portion 15a provided in the side surface 16d, and the recessed portion 15a is provided in a region that overlaps the region in which the operation tool placement portion 19 is provided in the front-rear direction.
According to this configuration, in a state in which the position of the hand is fixed by placing a finger on the recessed portion 15a, the remaining fingers can be extended to operate the manipulator placed on the manipulator placement portion 19 on the upper surface 16a of the armrest 15. can be done. Therefore, the operability is excellent when operating the operation tool arranged on the upper surface 16a of the armrest 15. FIG.

A plurality of operating tools are arranged side by side in the front-rear direction in the operating tool placement portion 19, and the recessed portion 15a is provided over the entire length of the region in which the plurality of operating tools are provided in the front-rear direction. .
According to this configuration, a plurality of operating tools arranged in the front-rear direction can be operated by extending the rest of the fingers in a state where the position of the hand is fixed by putting the finger on the concave portion 15a. Therefore, it is excellent in operability when operating a plurality of operation tools arranged in the front-rear direction.

Further, in the operating tool arrangement portion 19, a plurality of operating tools are arranged side by side from the side surface 16d provided with the recessed portion 15a toward the side surface 16c opposite to the side surface 16d.
According to this configuration, in a state in which the position of the hand is fixed by placing a finger on the recessed portion 15a, the remaining fingers are stretched and the plurality of fingers are aligned from the side surface 16d toward the side surface 16c opposite to the side surface 16d. operation tool can be operated. Therefore, the operability is excellent when operating a plurality of operation tools arranged in the width direction of the armrest 15 .

Further, the recessed portion 15a is provided on a side surface 16d on the side opposite to the driver's seat 10 side.
According to this configuration, in a state in which the fingers other than the thumb are applied to the recessed portion 15a to fix the position of the hand, the thumb is extended to operate the operating tool arranged on the operating tool placement portion 19 on the upper surface 16a of the armrest 15. be able to. Therefore, the operability is excellent when operating the operation tool arranged on the upper surface 16a of the armrest 15. FIG.

Further, the recessed portion 15a is sized so that a driver seated in the driver's seat 10 can hook four fingers excluding the thumb when operating the operation tools arranged in the operation tool placement portion 19.例文帳に追加
According to this configuration, four fingers other than the thumb are hooked on the concave portion 15a to firmly fix the position of the hand. can be operated.

Further, the armrest 15 has an elbow rest portion 18 for the driver who is seated in the driver's seat 10 to rest his/her elbows. In the direction, it is provided in a range extending over the elbow rest portion 18 and the operating tool placement portion 19 .
According to this configuration, the driver can place his/her elbow on the elbow rest 18 and place his or her finger on the concave portion 15a to fix the position of the hand, thereby fixing the position of the hand in a stable posture. can be done.

In addition, a sloped surface 18 f that slopes downward toward the operation tool placement portion 19 is provided on the front portion of the elbow rest portion 18 .
According to this configuration, among the operating tools arranged in the operating tool placement portion 19, it is possible to operate the operating tool located near the front of the elbow rest portion 18 without being obstructed by the elbow rest portion 18. The operability of the operating tool can be improved.

In addition, the inclined surface 18f is provided on the side of the armrest 15 in the width direction where the concave portion 15a of the elbow rest portion 18 is provided.
According to this configuration, it is possible to operate the operation tool provided on the side where the recessed portion 15a is provided without being hindered by the elbow rest portion 18 while placing a finger on the recessed portion 15a. The operability of tools can be improved.

In addition, on the upper surface provided with the operation tool placement portion 19, the height of the region on the side where the recessed portion 15a is provided in the width direction of the armrest 15 is higher than the height of the region on the side opposite to the side where the recessed portion 15a is provided. low compared to height.
According to this configuration, while a finger (for example, four fingers other than the thumb) is applied to the recessed portion 15a, another finger (for example, the thumb) is extended toward the side opposite to the side where the recessed portion 15a is provided. , the height of the top surface on the root side of another finger is lower than the height of the top surface on the tip side. Therefore, the operability is improved when operating by extending another finger.

In addition, the upper surface on which the operation tool placement portion 19 is provided includes one side upper surface 15A that is the area on the side where the recessed portion 15a is provided, and the other side upper surface that is the area on the side opposite to the side where the recessed portion 15a is provided. 15C, and an intermediate upper surface 15B that is a region provided between the one-side upper surface 15A and the other-side upper surface 15C, the intermediate upper surface 15B being higher than the one-side upper surface 15A and lower than the other-side upper surface 15C. .

According to this configuration, the upper surface on which the operation tool placement portion 19 is provided has a stepped shape that rises as it moves away from the recessed portion 15a. Therefore, the operability is improved when another finger (for example, thumb) is extended toward the side opposite to the side provided with the recessed portion 15a.
In addition, on the upper surface 15A on one side, operating tools 61 to 65 for performing operations related to traveling are arranged, and on the upper surface 15C on the other side, operating tools 69 and 70 for operating operations relating to work are arranged. there is

According to this configuration, since the traveling system operating tools 61 to 65 are arranged on the higher side of the operating tool arrangement portion 19 and the work system operating tools 69 and 70 are arranged on the lower side, the traveling system operating tool and the working system operating tool are arranged on the lower side. It is possible to recognize and operate by clearly distinguishing from tools.
Further, a control device is provided for controlling the drive of the transmission based on the operation of the operation lever 21 or the operation of the operation switch (the fourteenth front operation tool 74 or the fifteenth front operation tool 75). 21 and the operation switch (the fourteenth front operation tool 74 or the fifteenth front operation tool 75), one is in the operation position for speed-up operation and the other is in the operation position for deceleration operation, one is in the operation position. If the time difference between when the other is in the operating position and when the other is in the operating position is less than a predetermined time, the operating lever 21 and the operating switch (14th front operating tool 74 or 15th front operating tool 75) Both operations are invalidated, and if the time difference is equal to or longer than the predetermined time, the operation of the first operating position is validated and the operation of the second operating position is invalidated.

According to this configuration, when conflicting operations (acceleration operation and deceleration operation) are performed by the operation lever 21 and the operation switch (the fourteenth front operation tool 74 or the fifteenth front operation tool 75), the control is performed. Appropriate action can be taken by the device. Specifically, when contradictory operations are performed with a time lag of less than a predetermined time, there is a high possibility of an erroneous operation, so by disabling both operations, it is possible to avoid unintentional gear shifting due to an erroneous operation. can do. Further, when contradictory operations are performed with a time lag of a predetermined time or more, the possibility of erroneous operation is low, so that the previous operation can be validated and the shift reflecting the operator's intention can be executed.

In addition, the control device is such that one of the operation lever 21 and the operation switch (the fourteenth front operation tool 74 or the fifteenth front operation tool 75) is in the operation position for the speed increasing operation and the other is in the operation position for the speed increasing device. When , the speed change device is caused to increase speed regardless of the time difference between when one is at the operating position and when the other is at the operating position.
According to this configuration, when both the operating lever 21 and the operating switch (the fourteenth front operating tool 74 or the fifteenth front operating tool 75) are in the speed increasing operation position, the operator performs the speed reducing operation. Since the intention to execute is clear, regardless of the time difference between when one shifts to the operating position and when the other shifts to the operating position, the operator's intention is reflected to speed up the transmission. can be made

Further, the control device allows one of the operating lever 21 and the operating switch (the fourteenth front operating tool 74 or the fifteenth front operating tool 75) to be in the operation position for deceleration operation and the other to be in the operation position for deceleration operation. When this occurs, the transmission is caused to execute deceleration regardless of the time difference between when one of the two shifts to the operating position and when the other shifts to the operating position.
According to this configuration, when both the operating lever 21 and the operating switch (the fourteenth front operating tool 74 or the fifteenth front operating tool 75) are in the operation position for the deceleration operation, the operator executes the deceleration operation. Since the intention to do so is clear, regardless of the time difference between when one shifts to the operating position and when the other shifts to the operating position, the operator's intention is reflected to cause the transmission to execute deceleration. can be done.

In addition, after both the operating lever 21 and the operating switch (the fourteenth front operating tool 74 or the fifteenth front operating tool 75) are in the operating positions, the control device is configured to operate the operating lever 21 and the operating switch (the fourteenth front operating tool 75). The next operation of the operation lever 21 or operation of the operation switch (14th front operation tool 74 or 15th front operation tool 75) is performed until both the operation tool 74 or the 15th front operation tool 75) are in the non-operating position. do not accept

According to this configuration, when the operator mistakenly sets both the operating lever 21 and the operating switch (the fourteenth front operating tool 74 or the fifteenth front operating tool 75) to the operating position, the operating lever 21 and the operating switch ( Since the shift is not executed unless the fourteenth front operating tool 74 or the fifteenth front operating tool 75) is returned to the non-operating position and then operated again, it is possible to prevent the shift from being performed due to an erroneous operation by the operator.

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 10 driver's seat 15 armrest 16c side surface 20 pedestal 20d side surface 21 of pedestal operation lever 25a mounting surface 30 pressing operation tool 71 different from pressing operation tools 74 and 75 traveling system operating tools 72 and 73 work system operating tools 74 and 75 Push operation tool 84 for performing operation related to running by pressing Projection 84a Front part L1 of projection Extension line L2 in swinging direction of operation lever Extension line L3 in rotation direction of traveling system operation tool Extension line in direction of arrangement of a plurality of push operation tools L4 Longitudinal extension of mounting surface

Claims (6)

driver's seat and
an armrest provided on the side of the driver's seat;
with
The armrest is
an operation lever that performs an operation related to running by swinging forward or backward;
a traveling system operation tool that performs operations related to traveling by rotating around a horizontal axis;
a work-related operating tool that performs work-related operations by swinging around a horizontal axis;
a pedestal for supporting the base of the operating lever ;
The driver's seat is positioned on each extension line of the swinging direction of the operating lever and the rotating direction of the traveling system operation tool in a plan view ,
The travel system operation tool and the work system operation tool are arranged side by side in the width direction of the armrest,
A protrusion is provided between the travel system operation tool and the work system operation tool,
The pedestal is provided to protrude from the front part of the armrest,
The work vehicle , wherein a front portion of the protrusion is connected to a side surface of the base . 2. The work vehicle according to claim 1, wherein extension lines of the swinging direction of the operating lever and the rotating direction of the traveling system operation tool are inclined with respect to the longitudinal direction of the armrest in a plan view. A plurality of pressing operation tools for performing operations related to running by pressing are provided on the side surface of the armrest,
The work vehicle according to claim 1 or 2, wherein the driver's seat is positioned on an extension line of the direction in which the plurality of pressing operation tools are arranged in plan view. The operation lever has a mounting surface provided with a pressing operation tool that performs an operation related to running by pressing and is different from the pressing operation tool,
The work vehicle according to any one of claims 1 to 3, wherein the driver's seat is positioned on a longitudinal extension of the mounting surface. The swing direction of the work system operation tool and the rotation direction of the travel system operation tool are parallel in a plan view,
The work vehicle according to any one of claims 1 to 4, wherein the protrusion extends parallel to the swinging direction of the work system operating tool and the rotating direction of the travel system operating tool. The traveling system operation tool is arranged on the driver's seat side,
The work vehicle according to any one of claims 1 to 5 , wherein the work system operation tool is arranged on the side opposite to the driver's seat side.

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