JP6843199B2 - Work platform - Google Patents

Description

The present invention relates to a work vehicle provided with a multifunctional operating tool for controlling a transmission for changing a traveling speed and a work device.

Patent Document 1 discloses an armrest operating device for controlling a work vehicle. In this armrest operation device, a transmission control lever that protrudes upward in front of the arm placed on the armrest is arranged, and the vehicle is operated by grasping the transmission control lever with the fingers of the arm placed on the armrest and swinging it. The running speed of is adjustable. Further, on the side surface of the transmission control lever, a button for shifting up the transmission, a button for shifting down the transmission, and a button (switch) for shifting the transmission to the parking position are arranged. Therefore, the driver can operate the above-mentioned button group with the thumb of the hand holding the transmission control lever. However, this transmission control lever is shaped like an upright cylinder, and three buttons are lined up vertically on its side, so the driver decides to grab the transmission control lever from the side. Therefore, if you continue to select and operate a specific button in such a state, it will be a burden on your hand.

Patent Document 2 discloses an armrest operating device similar to Patent Document 1. In this armrest operating device, a mouse-shaped grip operating means used as an input device such as a computer is arranged in front of the arm placed on the armrest. The surface of this grip operating means is formed by a combination of several convex curved surfaces, and the outer surface thereof has an upper surface forming a mounting surface on which a palm is placed and an operating side surface on which a plurality of button groups are arranged. include. By operating the buttons with the thumb of the hand placed on the mounting surface, it is possible to shift up or down the transmission, raise or lower the work device, and so on. However, in this grip operating means, since the mounting surface and the operating side surface form one convex curved surface, when the palm is placed on the mounting surface, the posture is such that the thumb naturally touches the operating side surface. Become. For this reason, the operator who puts his / her hand on the mounting surface must be careful not to press unnecessary buttons. This puts a burden on the operator and reduces the effect of putting the hand on the surface to relax the hand.

US Patent Publication No. 2005/0133292 European Patent Publication No. 2277736

In view of the above circumstances, there is a demand for a work vehicle equipped with a multifunctional operating tool capable of appropriate operation.

The work vehicle of the present invention is a work vehicle including an engine, wheels, a transmission for transmitting power from the engine to the wheels, and a multifunctional operating tool. The transmission is hydraulically controlled to shift gears. It has a main transmission unit configured to suppress switching impact and a synchromesh type auxiliary transmission unit, and the multifunctional operating tool is supported so as to be swingable at least in the front-rear direction of the vehicle. A rocking body that accelerates and decelerates the transmission by swinging in the front-rear direction of the vehicle, a grip body provided at the free end of the rocking body, and a region on one side of the grip body in the vehicle crossing direction. It has a convex curved surface located and a vertical side surface located on the other side region in the vehicle transverse direction of the grip body, and the grip portion formed on the grip body and the other side region of the grip portion. An operator-facing surface formed so as to extend from the lower end edge of the vertical side surface in the vehicle crossing direction, and a shift assist button is provided on the vertical side surface of the transmission stage of the auxiliary transmission unit. The change operation is possible while the shift assist button is pressed.
Here, the multifunctional operation tool is a multifunctional operation tool for controlling a work vehicle provided with a transmission for changing a traveling speed and a work device, and is supported so as to be swingable in the front-rear direction of the vehicle and is also in front of the vehicle. A rocking body that speeds up the transmission by swinging in the direction and decelerates the transmission by swinging in the rear direction, a grip body provided at a free end of the rocking body, and a grip body of the grip body. A grip portion having a convex curved surface formed in one side region in the vehicle crossing direction, a vertical side surface formed in the other side region in the vehicle crossing direction of the grip body and being a side surface of the grip portion, and the above. and the other side region and the vertical-shaped side face formed operator facing surface so as to extend in the vehicle transverse direction from the lower edge of the, Tsu Do from said vertical-shaped side face and the operator facing surface and the arranged operation switches You may.

According to this configuration, a space is created on the side of the grip portion gripped by the operator's palm, which is bounded by the vertical side surface and the operator facing surface, and the grip portion is gripped or held in the space. The thumb of the hand placed on the grip is practically positioned in a dangling posture. Since the thumb can move relatively freely in this space, this space will be referred to as a thumb free space hereafter. Further, since the operation switches are arranged on the vertical side surface and the operator facing surface, the target operation switch can be appropriately operated after a slight movement of the thumb in the thumb free space. When not operating, the thumb may stand by in a natural (comfortable) posture in the thumb free space, and the inconvenience of inadvertently operating the operation switch is reduced.

In one of the preferred embodiments of the present invention, a hypothenar eminence is formed on the lower end edge of the grip portion so as to protrude outward from the grip surface. This hypothenar eminence prevents the palm placed on the grip portion having the convex curved surface from slipping off. As a result, the operator can easily rest the palm on the grip portion for a long time.

The most basic operation function of this multifunctional operating tool is to accelerate the vehicle by swinging in the forward direction and decelerate the vehicle by swinging in the rear direction, and the operation is placed on the grip. This is achieved by swinging the palm of the hand in the front-rear direction (vehicle running direction). At that time, since the thumb of the hand placed on the grip portion is in a relatively free state, the operation switch arranged on the thumb on the vertical side surface or the operator facing surface can be smoothly operated by the thumb. Therefore, in one of the preferred embodiments of the present invention, the operation switch group comprises a traveling operation switch group for changing the speed change stage of the transmission and a work operation switch group for controlling the work device, and the operator. At least one travel operation switch belonging to the travel operation switch group and at least one work operation switch belonging to the work operation switch group are arranged on the facing surface. In particular, it is convenient that the operation switches, which are often operated at the same time as the acceleration / deceleration operation of the vehicle or following the operation, are arranged on the vertical side surface or the operator facing surface.

In the multifunctional operating tool according to the present invention, when the palm is placed on the grip, the thumb is located in the thumb free space defined by the vertical side surface and the operator facing surface, and the middle finger and the index finger are the vertical of the grip body. It will be located on the side surface opposite to the side surface. For this reason, it is convenient to arrange the operation switch on the side surface facing the middle finger and the index finger. In one of the preferred embodiments of the present invention, a specific function switch that enables a specific function by being simultaneously operated with another artificial operation tool including an operation switch belonging to the operation switch group is provided. The specific function switch is arranged on the vertical side surface, a side surface different from the vertical side surface of the grip body, or both. As a result, it is possible to effectively utilize the joint structure mechanism of the hand, in which the thumb and the middle finger (or index finger) can easily pinch an object jointly.

The shuttle switch that switches between forward and reverse is an operation switch that is often operated in conjunction with the acceleration / deceleration operation of the vehicle. In addition, since the shuttle switch switches between forward and reverse, which is a major change of state of the vehicle, the operator needs to operate it with sufficient consciousness. In order for the operator to have such awareness, it is convenient to provide another switch in addition to the shuttle switch and to switch between forward and reverse by operating these two switches. Moreover, the operability is improved if the two switches can be operated only by the natural movement of the fingers of the hand placed on the grip portion. For this reason, in one of the preferred embodiments of the present invention, the traveling operation switch group includes a shuttle switch for switching between forward and reverse, and the shuttle switch is vertically formed on the operator facing surface. A shuttle permission switch that is arranged close to the side surface and enables or disables the function of the shuttle switch is arranged as the specific function switch on the side surface of the grip body opposite to the vertical side surface.

The subject of the present invention is not only the above-mentioned multifunctional operating tool, but also an armrest operating device provided with such a multifunctional operating tool. The armrest operating device provided with the above-described multifunctional operating tool according to the present invention is provided with an integrally configured armrest support, and the armrest support is provided in a front region, an intermediate region, and a rear region along the vehicle body front-rear direction. The multifunctional operating tool is arranged in the front area, the armrest base is arranged in the rear area, and the engine control switch group and the hydraulic control switch group for the work vehicle are arranged in the intermediate area. Have been placed. In this armrest operation device, the palm of the arm placed on the armrest stand is placed on the grip of the multifunctional operation tool, so that the burden on the arm is reduced and the multifunctional operation tool is comfortably operated using the palm and fingers. be able to. Further, various switch groups are arranged in the intermediate region between the armrest stand and the multifunctional operation tool, and the operation switch groups can be arranged together, and the wiring cost is reduced.

It is a schematic diagram explaining the basic structure of this invention. It is a side view of the tractor which is an example of the work vehicle equipped with one of the embodiments of the armrest operation device which has the multifunction operation tool by this invention. It is a side view of the armrest operation device equipped in the tractor. It is a top view of the armrest operation device. It is a perspective view seen from above of the multifunctional operation tool provided in the armrest operation device. It is a perspective view seen from the side of a multifunctional operation tool. It is a perspective view seen from the rear of a multifunctional operation tool. It is a perspective view seen from above of a multifunctional operation tool.

Before explaining a specific embodiment of the multifunctional operating tool according to the present invention, the basic configuration that characterizes the present invention will be described with reference to FIG.
FIG. 1 shows a multifunctional operating tool 5 oscillatingly supported around an swing shaft P1 on an armrest base 40 constituting the armrest operating device 4. The multifunctional operating tool 5 is used to control a work vehicle such as a tractor or a front loader equipped with a transmission for changing a traveling speed and a work device. The multifunctional operating tool 5 is substantially composed of a grip body 5A and a rocking body 5B. In FIG. 1, the rocking body 5B is formed as an arm member that swings around the swing shaft P1. In this embodiment, the vehicle is accelerated by swinging the rocking body 5B in one direction from the swinging neutral position where the rocking body 5B is substantially vertical, and the vehicle is decelerated by swinging in the other direction. It is configured in.

The grip body 5A is provided on the free end side of the rocking body 5B. As shown in FIG. 1, the grip body 5A is for the grip portion 50 formed in the right side region, here approximately the right half region, and the operation switch group 9 formed in the left side region, here approximately the left half region. It is composed of an extension portion 51 of. The outer peripheral surface of the grip body 5A is formed by a convex curved surface 52, a vertical side surface 53, a back surface 54a (see FIG. 7), and a bottom surface 54b (see FIG. 7). The convex curved surface 52 has a shape so that the palm that grips the grip portion 50 smoothly covers it. The vertical side surface 53 is a surface extending substantially perpendicular to the left end edge of the convex curved surface 52. A piece of tongue protruding outward is formed as a hypothenar eminence 55 at at least a part of the lower end edge of the grip portion 50, that is, the boundary region between the bottom surface 54b and the convex curved surface 52. The hypothenar eminence 55 has a shape that holds the hypothenar eminence of the hand so that the palm placed on the grip 50 does not slip downward.

The upper surface of the extension portion 51 has a substantially flat surface or a slightly convex curved surface. Since the upper surface of the extension portion 51 is arranged so as to face the operator in actual application, it is hereinafter referred to as an operator facing surface 56. The operator facing surface 56 of the extension portion 51 extends to the left from the lower end edge of the vertical side surface 53 of the grip portion 50, and the grip portion 50 and the extension portion 51 are connected to each other with the operator facing surface 56. The vertical side surface 53 intersects at a substantially right angle. Therefore, the space defined by the operator facing surface 56 and the vertical side surface 53 has a size that allows the thumb of the hand placed on the grip portion 50 to move freely to some extent. Therefore, this space is referred to as the thumb free space TS.

At least one operation switch (including a button, a lever, etc.) belonging to the operation switch group 9 is arranged on the vertical side surface 53 and the operator facing surface 56. The operation switch group 9 includes a traveling operation switch group for changing the speed change stage of the transmission and a work operation switch group for controlling the work device. In the example of FIG. 1, the traveling operation switch belonging to the traveling operation switch group and the work operation switch belonging to the work operation switch group are mixedly arranged on the operator facing surface 56. Operation switches belonging to the traveling operation switch group are arranged on the vertical side surface 53, and these operation switches are basically arranged so as to be easily operated by the thumb of the hand placed on the grip portion 50. On the back surface 54a of the grip portion 50, operation switches belonging to the traveling operation switch group are arranged so as to be easily operated by the middle finger or the index finger of the hand placed on the grip portion 50.

The armrest operating device 4 includes an armrest support base 4A that functions as a mounting base. The armrest support base 4A is divided into a front region, an intermediate region, and a rear region. A multifunctional operating tool 5 is arranged in the front area, and an armrest stand 40 on which the operator's arm is placed is arranged in the rear area. Engine control switch groups, hydraulic control switch groups for work vehicles, and the like are arranged in the front area and the intermediate area other than the installation location of the multifunctional operating tool 5. The armrest operating device 4 is integrally attached to the area from the side to the front of the driver's seat of the work vehicle.

Next, one specific embodiment of the armrest operating device having the multifunctional operating tool according to the present invention will be described. FIG. 2 is a side view of a tractor which is an example of a work vehicle equipped with such an armrest operation device. In this tractor, as shown in FIG. 2, the engine 20 is mounted on the front portion of the vehicle body 1 of the tractor supported by the front wheels 2a and the rear wheels 2b, and the transmission 22 is mounted behind the engine 20. ing. Behind the vehicle body 1, a rotary tillage device as a work device 3 is mounted so as to be able to move up and down via a link mechanism 30. This tractor is a four-wheel drive type, and the power of the engine 20 is transmitted to the front wheels 2a and the rear wheels 2b via a traveling transmission mechanism built in the transmission 22. Further, the power of the engine 20 is also transmitted to the working device 3 via the PTO shaft 31 protruding rearward from the transmission 22. The engine 20 is covered by a bonnet 21. The cabin 10 is supported by the vehicle body 1 behind the bonnet 21 and above the transmission 22.

The inside of the cabin 10 functions as a driving space, and a steering handle 11 for steering the front wheels 2a is provided in the front portion thereof, and a driver's seat 12 is provided in the rear portion between the pair of left and right rear wheel fenders 15. Have been placed. An armrest operating device 4 having a multifunctional operating tool 5 is provided from the side to the front of the driver's seat 12. A display 13 is provided on the front side of the armrest operating device 4 to visually notify the driver of various information.

As shown in FIG. 3, the armrest operating device 4 includes an armrest support base 4A fixed to a mounting bracket 4B fixed to a support frame (not shown).
A support rod 4C that extends forward and is inclined upward is fixed to the mounting bracket 4B, and a display 13 such as a liquid crystal panel is attached to the tip of the support rod 4C. The display 13 can perform input operations through a touch panel, and can accept various operation inputs by the driver.

As is clear from FIG. 4, the armrest operating device 4 can be divided into a front region 4a, an intermediate region 4b, and a rear region 4c in a plan view. A cushioned armrest stand 40 on which an arm is placed is provided in the rear region 4c. A multifunctional operating tool 5, which will be described in detail later, is provided in the substantially left half of the front region 4a. The first operation switch group 9a and the second operation switch group 9b are arranged as the operation switch group 9 in the substantially right half of the front region 4a. In the intermediate region 4b, as the operation switch group 9, the third operation switch group 9c, the fourth operation switch group 9d, and the fifth operation switch group 9e are arranged from the left. Each operation switch group 9 is provided with operation switches formed of various types such as buttons, switches, dials, levers, and joysticks.

5 to 8 show a multifunctional operating tool 5 viewed from various directions. The multifunctional operation tool 5 is for right-hand operation. As schematically shown in FIGS. 6 and 7, the grip body 5A of the multifunctional operating tool 5 is attached to a rocking body 5B that swings around a rocking shaft P1 extending in a substantially transverse direction of the vehicle body 1. Has been done. At that time, the rocking body 5B is fitted into the bush portion 59 formed on the bottom surface 54b of the grip body 5A. A skirt 59a is formed around the lower end of the bush portion 59. The skirt 59a functions as a guide member and a dustproof member for the swing hole formed in the armrest support base 4A.

The grip body 5A includes a grip portion 50 and an extension portion 51 extending from the left side of the grip portion 50, but is integrally molded. Of course, it may be configured to be joined after being divided and molded. The grip portion 50 has a slightly deformed 1/8 circular shape in a plan view (see FIG. 8), the upper surface is a convex curved surface 52, and the bottom surface 54b is a substantially flat surface. Further, the back surface 54a is a substantially flat surface common to the extension portion 51 (see FIG. 7). The convex curved surface 52 has a curved shape that adapts to the depression created by the palm when the finger is slightly bent inward. The palm is placed on the convex curved surface 52, the fingers other than the thumb are placed on the back surface 54a, and the grip portion 50 is sandwiched so that the hand is in a stable state and the thumb located on the left side of the grip portion 50 is in a free state. ..

The left side surface of the grip portion 50 is formed as a substantially flat vertical side surface 53, and a thumb that allows the thumb to move freely with a substantially flat operator facing surface 56 formed on the upper surface of the extension portion 51. Free space TS is created. The angle formed by the vertical side surface 53 and the operator facing surface 56 is about 110 degrees. Further, the twist angle of the operator facing surface 56 with respect to the grip portion 50 is set so that the operator facing surface 56 faces the line of sight of the driver seated in the driver seat 12.

A hypothenar eminence 55 is formed that protrudes like a tongue piece from the right lower end edge of the grip portion 50 to the boundary edge between the vertical side surface 53 and the operator facing surface 56. The protruding width is about the size where the little finger rests.

The transmission 22 includes six auxiliary transmission units and four main transmission units, and the main transmission unit is a transmission unit in which the impact of shifting gears is suppressed by proper control of flood control. By combining the transmission speeds of the auxiliary transmission unit and the main transmission unit, 24-speed transmission is realized. This shift change, that is, upshifting or downshifting, is performed by swinging the grip portion 50 around the swing shaft P1, and as a result, swinging the rocking body 5B. That is, while the palm is placed on the grip portion 50, the shift up is executed when the grip portion 50 is displaced forward, and the shift down is executed when the grip portion 50 is displaced rearward.

As shown in FIG. 5, in this embodiment, the operator facing surface 56 has a shuttle button 91 and a gear ratio fixed button 93 belonging to the operation switch group 9 related to traveling, and an up belonging to the operation switch group 9 related to work. A down button 92 and two hydraulic control switches 94a and 94b are provided. The shuttle button 91 is arranged at a position closest to the most vertical side surface 53 on the substantially upper half (front half) of the operator facing surface 56. The up / down button 92 is arranged to the left of the shuttle button 91, and the gear ratio fixing button 93 is further arranged to the left of the shuttle button 91. The hydraulic control switches 94a and 94b are arranged side by side on substantially the lower half (front half) of the operator facing surface 56. Further, a shift assist button 95 is arranged on the vertical side surface 53. Further, as shown in FIG. 7, a shuttle auxiliary button 96 is arranged on the back surface 54a of the grip portion 50. The shuttle auxiliary button 96 can be easily operated with the index finger or the middle finger of the hand on which the palm is placed on the convex curved surface 2 of the grip portion 50.

The shuttle button 91 switches the transmission 22 to forward by pressing the shuttle auxiliary button 96 and pressing the shuttle upward arrow, and presses the shuttle auxiliary button 96 and the downward arrow to move the transmission 22 forward. It has a function to switch. That is, by pressing the shuttle button 91 with the thumb while pressing the shuttle auxiliary button 96 with the middle finger or the index finger (of course, the ring finger or the little finger is also possible), the tractor can be selected to move forward or backward.

As described above, the transmission 22 adopted in this embodiment has a transmission unit in which the shift switching impact is suppressed by proper control of the hydraulic pressure, and a normal synchromesh type auxiliary transmission unit. Therefore, it is desirable to be aware of the difference between the operation of changing the four gears only for the main transmission unit without switching the auxiliary transmission unit and the operation of changing the gears with the switching of the auxiliary transmission unit. .. For this reason, in the shift switching (shift up, shift down) by swinging around the swing shaft P1 of the grip portion 50, the shift change operation of only the main shift unit without switching the auxiliary shift unit is a shift. It is effective without pressing the auxiliary button 95, but the operation of changing the shift stage accompanied by the switching of the auxiliary transmission unit is configured to be invalid unless the auxiliary shift button 95 is pressed. The operation of changing the shift stage, which involves switching the auxiliary transmission unit, needs to be performed while pressing the shift assist button 95. In that case, while pressing the shift assist button 95 with the thumb, the grip portion 50 is displaced forward or backward with the palm of the hand.

Further, the transmission control controller that controls the transmission 22 is provided with a function of setting an appropriate gear ratio according to the vehicle speed. However, during work or the like, it may be preferable to maintain the gear ratio as it is even if the vehicle speed fluctuates temporarily. In order to solve this problem, the gear ratio fixing button 93 is a button for forcibly fixing the gear ratio, and gives a command to the transmission control controller not to change the gear ratio of the transmission 22 even if the vehicle speed such as a brake operation decreases. Can be given.

The up / down button 92 is divided into two upper and lower button portions. By pressing the upper button portion, the working device 3 is raised, and by pressing the lower button portion, the working device 3 is lowered. The hydraulic control switches 94a and 94b control the valve of the hydraulic pipe connected to the work device 3.
[Separate Embodiment] (1) In the above-described embodiment, a transmission 22 provided with a multi-stage gear transmission mechanism is mounted, and a stepwise shift stage is obtained by swinging the grip portion 50 around the swing shaft P1. Switching was realized. On the other hand, when a transmission 22 equipped with a continuously variable transmission mechanism is operated, the transmission is configured so that the continuously variable transmission is realized by a swing operation around the swing shaft P1 of the grip portion 50. Can be done. That is, if the grip portion 50 swings forward from the neutral position around the swing shaft P1, the speed is continuously changed to the speed increasing side, and if the grip portion 50 swings backward from the neutral position around the swing shaft P1. The gear is continuously shifted to the deceleration side.
(2) The type and arrangement of the operation switch group 9 arranged on the grip body 5A presented in the above-described embodiment is an example, and the operation switch selected from the operation switch group 9 can be arbitrarily selected as needed. Can be placed.
(3) The shapes of the grip portion 50 and the extension portion 51 are not limited to the shapes shown in the drawings. The upper surface shape of the grip portion 50 may be at least a convex curved shape such that the outer contour thereof naturally accepts the palm. The shape of the extension portion 51 may also be such that a thumb free space TS is formed between the extension portion 51 and the grip portion 50, and a plurality of operation switches can be arranged so as to be operable by the thumb of the hand placed on the grip portion 50. .. Further, the surface may be a rough surface or a glossy surface.
(4) In the above-described embodiment, the grip body 5A and the oscillating body 5B are oscillated and displaced only around the oscillating shaft P1. It may be omnidirectionally displaceable using a spherical joint.

The present invention can be applied to various work vehicles such as combine harvesters other than tractors, agricultural work vehicles such as rice transplanters, and construction machines such as front loaders and backhoes.

1: Body 3: Working device 4: Armrest operating device 4A: Armrest support base 40: Armrest base 5: Multi-function operating tool 5A: Grip body 5B: Swinging body 50: Grip part 51: Extension part 52: Convex curved surface 53 : Vertical side surface 54a: Back surface 54b: Bottom surface 55: Hypothenar eminence 56: Operator facing surface 22: Transmission 9: Operation switch group TS: Thumb free space P1: Swinging shaft

Claims (15)

A work vehicle equipped with an engine, wheels, a transmission for transmitting power from the engine to the wheels, and a multifunctional operating tool.
The transmission is
The main transmission unit configured to suppress the shift switching impact by hydraulic control,
It has a synchromesh type auxiliary transmission unit, and
The multifunctional operation tool is
A rocking body that is supported to swing at least in the front-rear direction of the vehicle and that controls the speed increase and deceleration of the transmission by swinging in the front-rear direction of the vehicle.
A grip body provided at the free end of the rocking body and
A grip portion formed on the grip body, having a convex curved surface located on one side region in the vehicle crossing direction of the grip body and a vertical side surface located on the other side region in the vehicle crossing direction of the grip body. When,
It has an operator facing surface formed so as to extend in the vehicle transverse direction from the lower end edge of the vertical side surface in the other side region of the grip portion.
Shift assist buttons are provided on the vertical side,
A work vehicle capable of changing a shift stage with a shift of the auxiliary transmission unit while the shift assist button is pressed. The multifunctional operating tool is supported so as to be swingable around a swing shaft, the swing body is configured as an arm member that swings around the swing shaft, and the shift stage is changed by the grip portion. The work vehicle according to claim 1, which is executed by swinging around a swing shaft. The shift change operation including the shift of only the main shift unit without shifting the auxiliary shift unit is possible while the shift assist button is not pressed, and while the shift assist button is not pressed. Is the work vehicle according to claim 1 or 2, wherein the shift stage cannot be changed with the shift of the auxiliary transmission unit. The work vehicle according to any one of claims 1 to 3, further comprising a hypothenar eminence extending outward from the lower portion of the grip portion. The grip, the a convex curved surface can support the palm of the operator, and, according to claim 4, wherein the loaded small finger ball is supported configured to be able to hypothenar hand of the operator Work vehicle. The work vehicle according to claim 5, wherein the grip portion is configured such that the vertical side surface can support the thumb of the operator's hand. The work vehicle according to any one of claims 4 to 6, wherein the hypothenar eminence extends outward from the lower edge portion of the convex curved surface. At least one operation switch includes at least one travel operation switch and at least one work operation switch, and at least one travel operation switch and at least one work operation switch are provided on the operator facing surface. The work vehicle according to any one of claims 1 to 7. At least one operation switch includes a shuttle sub-button provided on the back surface of the grip.
Shuttle buttons are provided on the other horizontal surface of the grip body,
The invention according to any one of claims 1 to 8, which is configured to exert a specific function when one of the shuttle sub-button and the shuttle button is operated at the same time as the other operation switch. Work vehicle. The at least one operation switch includes at least one travel operation switch belonging to the travel operation switch group, and the travel operation switch includes a shuttle button for switching between forward and reverse, and the shuttle button faces the operator. The work vehicle according to any one of claims 1 to 9, which is arranged on a surface or the vertical side surface. The work vehicle according to claim 10, wherein a shuttle permission switch for enabling or disabling the function of the shuttle button is arranged on a side surface of the grip body opposite to the vertical side surface or the back surface. The work vehicle according to any one of claims 1 to 11, wherein the grip portion is arranged adjacent to the operator facing surface in the vehicle crossing direction. The work vehicle according to any one of claims 1 to 12, wherein the grip portion and the operator facing surface are arranged so that the heights of the upper surfaces are different. The work vehicle according to any one of claims 1 to 13, wherein the vertical side surface is provided so as to connect the upper surface of the grip portion and the operator facing surface. The multifunctional operating tool is supported so as to be swingable around the swinging shaft, the grip body of the multifunctional operating tool is fixed to the swinging body, and the rocking body extends around the swinging shaft in the vehicle transverse direction. The work vehicle according to any one of claims 1 to 14, which swings in the air.

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